CN112123872B - Packaging bag making machine - Google Patents

Abstract

The application relates to a packaging bag making machine, which relates to the field of packaging product production equipment and comprises a fixed seat, a bearing traction mechanism, a heat sealing mechanism and a cutting mechanism, wherein the heat sealing mechanism comprises a hot pressing table which is arranged on the fixed seat in a lifting manner, a lifting assembly used for driving the hot pressing table to lift in a reciprocating manner is arranged on the fixed seat, a plurality of strip-shaped hot pressing dies which are parallel to each other are arranged on the lower end surface of the hot pressing table, and a cooling assembly used for cooling the hot pressing dies is arranged on the hot pressing table; the upper end face of the fixing seat is provided with a semi-heat-insulation sheet which is located right below the hot-pressing dies, and the semi-heat-insulation sheet is made of flexible materials and completely shields the hot-pressing dies. This application has and protects the wrapping bag through setting up half heat insulating sheet, and the wrapping bag is scalded probability when can effectively avoiding changing producing the line debugging, has effectively improved the production efficiency when changing the product line.

Description

Packaging bag making machine

Technical Field

The application relates to the field of packaging product production equipment, in particular to a packaging bag making machine.

Background

At present, when products are packaged, most of the plastic packaging bags are used, three sides of each packaging bag are sealed under the common condition, the other side of each packaging bag is sealed or provided with self-sealing strips after the products are packaged, a bag making machine is needed when the plastic packaging bags are produced, a conventional bag making machine is used for unreeling a plastic packaging film, cutting the plastic packaging film into an upper film and a lower film, then carrying out hot-pressing edge sealing on the upper film and the lower film, trimming and cutting after three sides are respectively subjected to hot-pressing adhesion, and finally producing the plastic bag with one side opened.

The traditional Chinese patent with the patent publication number of CN111564600A provides a high-efficiency lithium battery pole piece bag making machine, which comprises a processing area, a fixed seat, two bearing and traction mechanisms, a heat sealing mechanism, a cutting mechanism, a detection platform, a first conveying mechanism, a defective product recycling mechanism, a storage box and a second conveying mechanism, wherein the processing area is provided with a plurality of processing areas; a heat sealing station and a cutting station are arranged in the processing area; the bearing traction mechanism comprises a base arranged on the fixed seat, a base driving structure, an operating platform, a first pressing plate and a second pressing plate; the operation platform extends into the processing area, and the lifting driving structure is arranged on the base and used for driving the operation platform to lift; the base driving structure is used for driving the base to move in a linkage mode; the first pressing plate is positioned right above the operating platform; the pressing plate lifting driving structure is arranged on the base and is used for driving the first pressing plate to move; the bidirectional driving structure is arranged on the base and is used for driving the bidirectional driving structure to move along the Y direction and the Z direction respectively.

In view of the above-mentioned related technologies, the inventor believes that there are the following defects that when different products are packaged, the required materials of the packaging bags are different, the thicknesses of the printing layers are also different, and the temperatures required by the hot pressing of the upper film and the lower film by the hot pressing die are also different, so that when the product line of the bag making machine is changed, the temperature is generally adjusted downward from a higher heating temperature to adjust a proper temperature capable of achieving a good hot pressing and bonding effect, and the overheated hot pressing die can scald the upper film in the adjusting process, thereby wasting the packaging bag raw materials and also influencing the production efficiency.

Disclosure of Invention

The application provides a wrapping bag system bag machine in order to improve the problem that the wrapping bag is scalded easily to hot moulding-die debugging heating temperature when changing the product line.

The application provides a wrapping bag system bag machine adopts following technical scheme:

a packaging bag making machine comprises a fixed seat, a bearing traction mechanism, a heat sealing mechanism and a cutting mechanism, wherein the heat sealing mechanism comprises a hot pressing table arranged on the fixed seat in a lifting mode, a lifting assembly used for driving the hot pressing table to lift in a reciprocating mode is arranged on the fixed seat, a plurality of strip-shaped hot pressing dies which are parallel to each other are arranged on the lower end face of the hot pressing table, and a cooling assembly used for cooling the hot pressing dies is arranged on the hot pressing table;

the fixing base up end is provided with and is located the semi heat insulating sheet under the hot pressing mould, semi heat insulating sheet is flexible material and shields a plurality of completely the hot pressing mould.

By adopting the technical scheme, when the upper film and the lower film of the packaging bag are conveyed between the hot pressing table and the fixed seat through the bearing traction mechanism, the lifting assembly drives the hot pressing table to descend and drives the hot pressing die to press downwards and heat seal the upper film and the lower film; when the packaging bag raw materials of different materials need to be replaced, the surface temperature of the hot-pressing die needs to be adjusted, the hot-pressing die can be heated or cooled through the cooling assembly so as to carry out high-quality heat sealing on the upper film and the lower film, when the hot-pressing die is pressed down in a debugging stage, the hot-pressing die is firstly contacted with the semi-heat-insulating sheet made of a flexible material and then drives the semi-heat-insulating sheet to be pressed on the upper film and the lower film together, the semi-heat-insulating sheet carries out heat reduction to a certain degree on the overheated hot-pressing die, and meanwhile, heat transferred by the hot-pressing die can be uniformly spread to a certain degree, so that the probability of scalding the upper film is reduced as much as possible in the debugging stage of the hot-pressing die, and the heat sealing quality of the upper film and the lower film is better; when the packaging bags made of the same material and with different printing layers are subjected to hot-press bonding, the heating temperature of the hot-press die is only needed to be adjusted in a fine mode, and the production efficiency during product line replacement is effectively improved.

Optionally, the fixing seat is provided with two parallel mounting rods, the two mounting rods are respectively arranged at the outer edges of two opposite side edges of the hot pressing table, and the semi-heat insulation sheet is arranged between the two mounting rods;

and the fixed seat is provided with a driving component for driving the middle part of the semi-heat-insulation sheet to do intermittent reciprocating motion in the horizontal direction relative to the hot-pressing die.

By adopting the technical scheme, when the overheated hot-pressing film is frequently pressed on the semi-heat-insulating sheet, the semi-heat-insulating sheet is easy to generate physical property change after being heated for a long time, for example, the semi-heat-insulating sheet is melted through or solidified, so that the hot-pressing die is directly contacted with the upper film of the packaging bag or the solidified semi-heat-insulating sheet isolates most of heat on the hot-pressing die, and the hot-pressing bonding effect of the hot-pressing die on the packaging bag is influenced; the part that can make half heat shield and hot pressing mould frequent contact after setting up drive assembly is intermittent type reciprocating motion in the horizontal direction, has effectively reduced the local long-time phenomenon with the hot pressing mould contact of half heat shield, can avoid half heat shield local overheat as far as, has effectively ensured the protective effect of half heat shield to the wrapping bag.

Optionally, the direction of the intermittent reciprocating motion of the semi-heat-insulating sheet is orthogonal to the length direction of the hot-pressing die.

Through adopting above-mentioned technical scheme, when the intermittent type lift that half heat insulating sheet followed the hot pressing mould was intermittent type reciprocating motion, the contact site when hot pressing mould contacted with the adjacent twice of half heat insulating sheet was different completely for half heat insulating sheet part after being heated has longer time to carry out the heat and gives off, has further effectively avoided half heat insulating sheet local overheated phenomenon.

Optionally, the lifting unit is including setting up the lifter of hot pressing platform four corners department, the lifter lower extreme runs through the fixing base extends to the fixing base below, four the common rigid coupling of lower tip of lifter has the crane, be provided with on the fixing base and be used for the drive the crane is cyclic reciprocating elevating movement's lift spare.

Through adopting above-mentioned technical scheme, when the lift of lifter drive crane was reciprocating elevating movement, the crane drove four lifter bars and hot pressing platform on it and was elevating movement to drive a plurality of hot pressing mould intermittent type hot pressing on the wrapping bag that the intermittent type was marchd, realized the effective hot pressing bonding to the wrapping bag.

Optionally, the driving assembly includes a lifting rack vertically and fixedly connected to the lifting rack, the fixing base is rotatably connected to a rotating shaft, the rotating shaft is rotatably connected to a main gear meshed with the lifting rack, a circular groove is coaxially formed in one side of the main gear, the rotating shaft is coaxially and fixedly connected to a first ratchet wheel located in the circular groove, and a first pawl meshed with the first ratchet wheel is rotatably connected to the circular groove;

a second ratchet wheel and a walking gear are coaxially and fixedly connected to the rotating shaft, a second pawl meshed with the second ratchet wheel is rotatably arranged on the fixed seat, a translation rack meshed with the walking gear is fixedly connected to the mounting rods, a connecting rod is connected between the two mounting rods, and the translation rack and the hot pressing die are arranged in an orthogonal mode;

the fixed seat is provided with a reset piece for driving the translation rack to move back to an initial position after translating for a specified distance.

By adopting the technical scheme, when the lifting frame ascends under the driving of the lifting piece, the lifting rack follows the ascending and drives the main gear meshed with the lifting rack to rotate, at the moment, the first pawl locks the first ratchet wheel, so that the first ratchet wheel and the rotating shaft rotate along with the main gear, the rotating shaft sequentially drives the second ratchet wheel coaxial with the rotating shaft and the walking gear to rotate coaxially when rotating, at the moment, the second pawl does not lock the second ratchet wheel, and the walking gear drives the translation rack meshed with the translation rack to move along the length direction of the translation rack when rotating, so that the two mounting rods and the semi-heat-insulating sheets on the mounting rods are driven to slide along the length direction of the translation rack; then the lifting rack descends along with the lifting frame, at the moment, the first pawl does not lock the first ratchet wheel, when the main gear rotates reversely, the first ratchet wheel and the rotating shaft do not rotate reversely along with the main gear, smooth descending of the lifting rack can be ensured, and at the moment, the second pawl locks the second ratchet wheel, so that the mounting rod and the semi-heat-insulating plate cannot move back when the lifting rack descends, and the step-by-step translation of the mounting rod and the semi-heat-insulating plate is realized; the translation rack reaches the assigned distance after repeating above step for a plurality of times, and the piece that resets makes the translation rack move back to initial position for the part on the semi-insulating sheet and the heating mould contact can obtain abundant cooling, has avoided the local frequent phenomenon of being heated and producing the structural damage of semi-insulating sheet as far as possible.

Optionally, the reset member includes a trigger disposed on the fixing seat and located at one end of the mounting rod away from the translation rack, a gap is reserved between the trigger and the end of the connecting rod, the trigger is electrically connected to the controller, an electromagnet located above the second pawl is disposed on the fixing seat, and the electromagnet is electrically connected to the controller; when the electromagnet is electrified and adsorbs the second pawl, the second pawl is disengaged from the second ratchet wheel;

and one end of the mounting rod, which is far away from the trigger, is fixedly connected with a return spring, and one end of the return spring, which is far away from the mounting rod, is fixedly connected with the fixed seat.

Through adopting above-mentioned technical scheme, the translation rack is contradicted with the trigger after the translation, reset spring is stretched and is produced deformation, the trigger makes the electro-magnet circular telegram through the controller, adsorb the second pawl so that the second pawl upturns and breaks away from and is connected with the meshing of second ratchet when the electro-magnet circular telegram, thereby the second pawl removes the locking to the second ratchet, reset spring's deformation power pulling translation rack drives installation pole and half heat insulating sheet and moves back to initial position, thereby realize half heat insulating sheet at the ascending intermittent type reciprocating motion of horizontal direction.

Optionally, drive assembly is including setting up step motor on the fixing base, step motor's output and one of them the coaxial rigid coupling of installation pole, the installation pole rotates to be connected on the fixing base, half heat insulating sheet is cyclic annular tensioning cladding two on the cambered surface periphery wall of installation pole.

Through adopting above-mentioned technical scheme, step motor drives its output and drives one of them installation pole rotatory when rotatory, and the half heat shield through the tensioning cladding drives another installation pole step-by-step rotation when installation pole step-by-step rotation to the hot pressing mould contacts with the different positions of half heat shield when the interval pushes down, can effectively avoid half heat shield part frequently to be heated and produce the phenomenon of structural damage.

Optionally, the outer peripheral wall of the arc surface of the mounting rod is coated with a rubber layer.

Through adopting above-mentioned technical scheme, rubber layer surface roughness is higher, and the installation pole can effectively drive semi-insulating sheet synchronous drive when rotatory.

Optionally, cooling unit includes that a plurality of rigid couplings are in terminal surface and branch are listed as under the hot pressing platform the cooling strip of hot pressing mould length direction both sides, the cooling strip lateral wall with the contact of hot pressing mould lateral wall, run through on the cooling strip and seted up cooling channel, the cooling strip in cooling channel's both ends all communicate there is the cooling tube, cooling tube and recirculated cooling water intercommunication.

Through adopting above-mentioned technical scheme, when recirculated cooling water flows in cooling channel through the cooling tube, accessible cooling strip carries out the heat exchange with hot pressing die's direct contact to the realization is to the convenient adjustment of hot pressing die temperature.

Optionally, the lifting piece is connected including articulated the connecting rod at terminal surface middle part under the crane, the fixing base below is rotated and is connected with the disc, the connecting rod is kept away from the one end of crane with the eccentric articulated connection of disc, the fixing base below is provided with and is used for the drive the rotatory power motor of disc.

Through adopting above-mentioned technical scheme, power motor drive disc is rotatory, and the disc is rotatory through connecting rod pulling elevating rack reciprocating lifting motion in the vertical direction to can drive the fixing base intermittent type and push down in order to realize the intermittent type hot pressing bonding to the wrapping bag.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the production line is replaced, the semi-heat-insulation sheets can reduce the heat quantity of the overheated hot-pressing die to a certain degree on one hand, and can also uniformly distribute the heat quantity transferred by the hot-pressing die to a certain degree, so that the probability of scalding the upper film of the hot-pressing die is reduced as much as possible in the debugging stage, and the heat-sealing quality of the upper film and the lower film is better;

2. the driving assembly enables the part of the semi-heat-insulating sheet frequently contacted with the hot-pressing die to do intermittent reciprocating motion in the horizontal direction, so that the phenomenon that the part of the semi-heat-insulating sheet is contacted with the hot-pressing die for a long time is effectively reduced, the local overheating of the semi-heat-insulating sheet can be avoided as far as possible, and the protection effect of the semi-heat-insulating sheet on the packaging bag is effectively ensured;

3. when circulating cooling water flows in the cooling channel through the cooling pipe, heat exchange can be carried out through the direct contact of the cooling strips and the hot pressing die, and therefore the temperature of the hot pressing die can be adjusted quickly.

Drawings

FIG. 1 is a schematic overall structure diagram of a first embodiment of the present application;

FIG. 2 is a schematic structural view of a fixing base and a heat-sealing mechanism in the first embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 1;

FIG. 4 is a schematic structural diagram of a second fixing base and a heat-sealing mechanism in an embodiment of the present application.

Reference numerals: 1. a fixed seat; 2. a hot-pressing table; 3. hot-pressing the die; 4. a semi-insulating sheet; 5. mounting a rod; 6. a lifting rod; 7. a lifting frame; 8. a lifting rack; 9. a rotating shaft; 10. a main gear; 11. a circular groove; 12. a first ratchet wheel; 13. a first pawl; 14. a second ratchet wheel; 15. a traveling gear; 16. a second pawl; 17. a translation rack; 18. a connecting rod; 19. a trigger; 20. an electromagnet; 21. a return spring; 22. a stepping motor; 24. cooling the strip; 25. a cooling tube; 26. a connecting rod; 27. a disc; 28. a power motor; 29. a lift spring; 30. a chute; 31. and (4) a support.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Example one

The embodiment of the application discloses a packaging bag making machine. Referring to fig. 1 and 2, bag making machine includes fixingbase 1, bearing drive mechanism, heat-seal mechanism and cuts the mechanism, and heat-seal mechanism is including going up and down to set up hotpressing platform 2 on fixingbase 1, is provided with the lifting unit who is used for driving hotpressing platform 2 to reciprocate to go up and down on fixingbase 1, and 2 terminal surfaces under the hot pressing platform are provided with a plurality of hotpressing moulds 3 that are parallel to each other and are rectangular form, are provided with the cooling component who is used for cooling down hotpressing mould 3 on the hotpressing platform 2.

Referring to fig. 2 and 3, a semi-insulating sheet 4 located right below the hot-pressing dies 3 is disposed on the upper end surface of the fixing base 1, the semi-insulating sheet 4 is made of a flexible material and completely covers the plurality of hot-pressing dies 3, the semi-insulating sheet 4 is disposed as one of heat-resistant fabrics such as non-woven fabric, knitted fabric, and cotton fabric, and the semi-insulating sheet 4 is disposed as non-woven fabric in the embodiment of the present application; the packaging bag hot-pressing device is characterized in that two mounting rods 5 which are parallel to each other and arranged along the conveying direction of a packaging bag are arranged on a fixing seat 1, supports 31 are arranged on the upper end face of the fixing seat 1 at two ends of each mounting rod 5, the mounting rods 5 are rotatably connected between the two supports 31, a connecting rod 18 is fixedly connected between the two supports 31 at the same end of each mounting rod 5, the two mounting rods 5 are respectively arranged at the outer edges of two opposite side edges of a hot-pressing table 2, a semi-heat-insulating sheet 4 is arranged between the two mounting rods 5, and two ends of the semi-heat-insulating sheet 4 are respectively wound on the two mounting rods 5 in the embodiment of the application; the fixed seat 1 is provided with a driving component for driving the middle part of the semi-heat-insulating sheet 4 to do intermittent reciprocating motion in the horizontal direction relative to the hot-pressing die 3, and the intermittent reciprocating motion direction of the semi-heat-insulating sheet 4 is orthogonal to the length direction of the hot-pressing die 3.

When the packaging bag raw materials of different materials need to be replaced on a packaging bag making machine, the surface temperature of the hot pressing die 3 needs to be adjusted, the hot pressing die 3 can be heated or cooled through a cooling assembly so that the hot pressing die 3 can carry out high-quality heat sealing on an upper film and a lower film, when the hot pressing die 3 is pressed down in a debugging stage, the hot pressing die 3 is firstly contacted with a semi-heat-insulating sheet 4 made of a flexible material, then the semi-heat-insulating sheet 4 is driven to be pressed on the upper film and the lower film together, the semi-heat-insulating sheet 4 carries out certain-degree heat reduction on the hot pressing die 3, and meanwhile, the heat transferred by the hot pressing die 3 can be uniformly spread to a certain degree, so that the probability of scalding the upper film is reduced as much as possible in the debugging stage of the hot pressing die 3, and the heat sealing quality of the upper film and the lower film is better; when the packaging bags made of the same material and with different printing layers are subjected to hot-press bonding, the heating temperature of the hot-press die 3 is only needed to be adjusted in a fine mode, and the production efficiency during product line replacement is effectively improved.

And in the process of intermittent pressing of the hotpressing die 3, the driving assembly drives the half heat-insulatingsheet 4 to do intermittent reciprocating motion along the direction orthogonal to the length direction of the hotpressing die 3, so that the phenomenon that the half heat-insulatingsheet 4 is locally contacted with the hotpressing die 3 for a long time is effectively reduced, the heat dissipation is carried out on the part of the heated half heat-insulatingsheet 4 for a long time, the local overheating of the half heat-insulatingsheet 4 can be avoided as far as possible, and the protection effect of the half heat-insulatingsheet 4 on the packaging bag is effectively ensured.

Referring to fig. 2, the lifting assembly comprises lifting rods 6 arranged at four corners of the hot-pressing table 2, the lower ends of the lifting rods 6 penetrate through the fixedbase 1 and extend to the lower part of the fixedbase 1, the lower ends of the four lifting rods 6 are fixedly connected with alifting frame 7, and a lifting piece for driving thelifting frame 7 to do reciprocating lifting motion is arranged on the fixedbase 1; the lifter is including articulated connecting at the connectingrod 26 of terminal surface middle part under thecrane 7, and 1 below of fixing base is rotated and is connected withdisc 27, and the one end and the eccentric articulated connection ofdisc 27 thatcrane 7 was kept away from to connectingrod 26, and 1 below of fixing base is provided with and is used for driving therotatory power motor 28 ofdisc 27, the coaxial rigid coupling ofoutput disc 27 ofpower motor 28, and the periphery wall cover of lifter 6 between hotpressing platform 2 and fixingbase 1 is equipped withlift spring 29.

The electric motor is started, thepower motor 28 drives thedisc 27 to rotate, and thedisc 27 pulls thelifting frame 7 to do reciprocating lifting motion in the vertical direction through the connectingrod 26 when rotating, so that the hotpressing platform 2 and the hotpressing die 3 can be driven to intermittently press down to realize intermittent hot pressing adhesion of the packaging bag.

Referring to fig. 2 and 3, the driving assembly is provided with two sets of two axial ends of one of the mountingrods 5, the driving assembly comprises alifting rack 8 vertically and fixedly connected to thelifting frame 7, arotating shaft 9 is rotatably connected to the fixingseat 1, therotating shaft 9 is arranged along the length direction of the connectingrod 18, one end of therotating shaft 9 is rotatably connected with amain gear 10 meshed with thelifting rack 8, a circular groove 11 is coaxially formed in one side of themain gear 10, which is away from the middle of therotating shaft 9, afirst ratchet wheel 12 positioned in the circular groove 11 is coaxially and fixedly connected to therotating shaft 9, and afirst pawl 13 meshed with thefirst ratchet wheel 12 is rotatably connected to the circular groove 11; when thelifting rack 8 is lifted, thefirst pawl 13 locks thefirst ratchet wheel 12, and therotating shaft 9 rotates along with themain gear 10.

Referring to fig. 2 and 3, asecond ratchet wheel 14 and awalking gear 15 are fixedly connected to one end, away from themain gear 10, of therotating shaft 9 coaxially, asecond pawl 16 meshed with thesecond ratchet wheel 14 is rotatably arranged on the fixingseat 1, thesecond pawl 16 and thefirst pawl 13 are located on the same side of therotating shaft 9, atranslation rack 17 meshed with thewalking gear 15 is fixedly connected to the mountingrod 5, a connectingrod 18 is connected between the two mountingrods 5, thetranslation rack 17 and thehot press mold 3 are arranged in an orthogonal mode, a slidingchute 30 matched with the connectingrod 18 in a sliding mode is formed in the upper end face of the fixingseat 1, and the length direction of the slidingchute 30 is arranged along the length direction of the connectingrod 18.

When thelifting frame 7 ascends, thelifting rack 8 moves upwards along with the lifting rack and drives themain gear 10 to rotate, thefirst ratchet wheel 12 and therotating shaft 9 rotate along with themain gear 10, therotating shaft 9 sequentially drives thesecond ratchet wheel 14 and thewalking gear 15 to coaxially rotate, at the moment, thesecond pawl 16 does not lock thesecond ratchet wheel 14, thewalking gear 15 drives thetranslation rack 17 meshed with the walking gear to move along the length direction of thetranslation rack 17 when rotating, so that the two mountingrods 5 and the semi-heat-insulatingsheets 4 on the mounting rods slide along the length direction of the slidinggroove 30, at the moment, the hot-pressingdie 3 contacts different parts of the semi-heat-insulatingsheets 4 when being pressed down again, and the phenomenon that the semi-heat-insulatingsheets 4 are locally overheated can be effectively avoided.

Subsequently, thelifting rack 8 descends along with thelifting frame 7, at the moment, thefirst pawl 13 does not lock thefirst ratchet wheel 12, when themain gear 10 rotates reversely, thefirst ratchet wheel 12 and therotating shaft 9 do not rotate reversely along with themain gear 10, smooth descending of thelifting rack 8 can be ensured, at the moment, thesecond pawl 16 locks thesecond ratchet wheel 14, the mountingrod 5 and the semi-heat-insulatingsheet 4 cannot move back when thelifting rack 8 descends, stepping translation motion of the semi-heat-insulatingsheet 4 along with reciprocating ascending and descending of thelifting frame 7 is realized, on one hand, the phenomenon that the semi-heat-insulatingsheet 4 is locally overheated is effectively reduced, on the other hand, the lifting motion of thelifting frame 7 is fully utilized to drive the semi-heat-insulatingsheet 4 to perform synchronous stepping translation, the matching degree is high, the work stability is realized, the configuration of a driving component is reduced, and later maintenance is easier.

Referring to fig. 2 and 3, a reset member for driving thetranslation rack 17 to translate for a specified distance and then return to an initial position is arranged on the fixedseat 1, the reset member includes atrigger 19 arranged on the fixedseat 1 and located at one end of the mountingrod 5 far away from thetranslation rack 17, thetrigger 19 is arranged on a groove wall of thechute 30 far away from one end of thetranslation rack 17, a gap is reserved between thetrigger 19 and the end of the connectingrod 18, thetrigger 19 is electrically connected with a controller, anelectromagnet 20 located above thesecond pawl 16 is arranged on the fixedseat 1, theelectromagnet 20 is electrically connected with the controller, and thesecond pawl 16 is made of ferromagnetic material; when theelectromagnet 20 is powered on and adsorbs thesecond pawl 16, thesecond pawl 16 is disengaged from thesecond ratchet wheel 14, the end of the mountingrod 5 away from thetrigger 19 is fixedly connected with thereturn spring 21, and the end of thereturn spring 21 away from the mountingrod 5 is fixedly connected with the fixedseat 1.

Thetranslation rack 17 is abutted to thetrigger 19 after translating to a set distance, thereset spring 21 is stretched to generate deformation, thetrigger 19 enables theelectromagnet 20 to be electrified through the controller, theelectromagnet 20 adsorbs thesecond pawl 16 when being electrified so that thesecond pawl 16 turns upwards and is separated from being connected with thesecond ratchet wheel 14 in a meshed mode, therefore, thesecond pawl 16 releases the locking of thesecond ratchet wheel 14, the deformation force of thereset spring 21 pulls thetranslation rack 17 to drive the mountingrod 5 and the semi-heat-insulatingplate 4 to move back to the initial position, therefore, the intermittent reciprocating motion of the semi-heat-insulatingplate 4 in the horizontal direction is achieved, and the part of the semi-heat-insulatingplate 4, which is in contact with the hot-pressingdie 3, has long cooling time.

Referring to fig. 2, the cooling assembly includes a plurality of cooling strips 24 that are fixedly connected to the lower end surface of the hot press table 2 and are arranged on two sides of the length direction of thehot press mold 3 in rows, the side walls of the cooling strips 24 contact with the side walls of thehot press mold 3, cooling channels (not shown in the figure) are formed in the cooling strips 24 in a penetrating manner, the cooling strips 24 are communicated with coolingpipes 25 at two ends of the cooling channels, and the coolingpipes 25 are communicated with circulating cooling water. When the circulating cooling water flows in the cooling channel through the coolingpipe 25, heat exchange can be carried out through the direct contact of the cooling strips 24 and the hotpressing die 3, so that the convenient adjustment of the temperature of the hotpressing die 3 is realized.

The implementation principle of the packaging bag making machine in the embodiment of the application is as follows: when the lifting frame 7 ascends, the lifting rack 8 moves upwards and drives the main gear 10 to rotate, the first ratchet wheel 12 and the rotating shaft 9 rotate along with the main gear 10, so that the second ratchet wheel 14 and the walking gear 15 rotate coaxially, at the moment, the second pawl 16 does not lock the second ratchet wheel 14, the walking gear 15 drives the translation rack 17 to move on the fixed seat 1 when rotating, so that the two mounting rods 5 and the semi-heat-insulating sheets 4 on the mounting rods slide along the length direction of the sliding groove 30, at the moment, the hot-pressing die 3 contacts different parts of the semi-heat-insulating sheets 4 when being pressed downwards again, and the phenomenon that the semi-heat-insulating sheets 4 are locally overheated can be effectively avoided; when the lifting rack 8 descends along with the lifting frame 7, the main gear 10 rotates reversely, the first pawl 13 does not lock the first ratchet wheel 12, the second pawl 16 locks the second ratchet wheel 14 at the moment, the mounting rod 5 and the semi-heat-insulating sheet 4 cannot move back, and the semi-heat-insulating sheet 4 can move in a stepping translation mode along the length direction of the sliding chute 30 along with the reciprocating lifting of the lifting frame 7 by repeating the steps; effectively reduced the local overheated phenomenon of half heat shield 4 on the one hand, on the other hand make full use of the elevating movement of crane 7 drive half heat shield 4 and do synchronous step-by-step translation, the degree of cooperation is high, job stabilization, has reduced drive assembly's configuration, changes in the later maintenance.

Thetranslation rack 17 is abutted to thetrigger 19 after translating to a set distance, theelectromagnet 20 is electrified to adsorb thesecond pawl 16 so that thesecond pawl 16 releases the locking of thesecond ratchet wheel 14, and the deformation force of thereset spring 21 pulls thetranslation rack 17 to drive the mountingrod 5 and the half heat-insulatingplate 4 to move back to the initial position, so that the intermittent reciprocating motion of the half heat-insulatingplate 4 in the horizontal direction is realized, and the part of the half heat-insulatingplate 4 in contact with the hotpressing die 3 has longer cooling time.

Example two

The embodiment of the application discloses a packaging bag making machine, referring to fig. 4, the difference with the first embodiment lies in: the driving assembly comprises a steppingmotor 22 fixed on one of thesupports 31, the output end of the steppingmotor 22 is coaxially and fixedly connected with one of the mountingrods 5, the mountingrods 5 are rotatably connected to the fixingbase 1, the semi-heat-insulatingsheets 4 are annularly tensioned and coated on the outer peripheral walls of the cambered surfaces of the two mountingrods 5, and the outer peripheral walls of the cambered surfaces of the mountingrods 5 are coated with rubber layers (not shown in the figure).

The steppingmotor 22 drives one of the mountingrods 5 to rotate when driving the output end of the stepping motor to rotate, and the other mountingrod 5 is driven to rotate step by tensioning the coated semi-heat-insulatingsheet 4 when the mountingrod 5 rotates step by step, so that the hot-pressingdie 3 is contacted with different positions of the semi-heat-insulatingsheet 4 when pressed down at intervals, and the phenomenon that the semi-heat-insulatingsheet 4 is locally and frequently heated to cause structural damage can be effectively avoided; the roughness of rubber layer surface is higher, andinstallation pole 5 can effectively drive semiheat insulating sheet 4 synchronous drive when rotatory, avoids the phenomenon of skidding as far as possible.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (5)

1. The utility model provides a wrapping bag system bag machine, includes fixing base (1), bearing drive mechanism, heat-seal mechanism and cuts the mechanism, its characterized in that:

the heat sealing mechanism comprises a hot pressing table (2) which is arranged on the fixed base (1) in a lifting mode, a lifting assembly used for driving the hot pressing table (2) to lift in a reciprocating mode is arranged on the fixed base (1), a plurality of parallel long-strip-shaped hot pressing dies (3) are arranged on the lower end face of the hot pressing table (2), and a cooling assembly used for cooling the hot pressing dies (3) is arranged on the hot pressing table (2);

a semi-heat-insulation sheet (4) positioned right below the hot-pressing dies (3) is arranged on the upper end face of the fixed seat (1), and the semi-heat-insulation sheet (4) is made of flexible materials and completely shields the hot-pressing dies (3);

the fixed seat (1) is provided with two parallel mounting rods (5), the two mounting rods (5) are respectively arranged at the outer edges of two opposite side edges of the hot-pressing table (2), and the semi-heat-insulating sheet (4) is arranged between the two mounting rods (5);

the fixed seat (1) is provided with a driving component for driving the middle part of the semi-heat-insulation sheet (4) to do intermittent reciprocating motion in the horizontal direction relative to the hot-pressing die (3);

the direction of the intermittent reciprocating motion of the semi-heat-insulation sheet (4) is orthogonal to the length direction of the hot-pressing die (3);

the lifting assembly comprises lifting rods (6) arranged at four corners of the hot-pressing table (2), the lower ends of the lifting rods (6) penetrate through the fixed seat (1) and extend to the lower part of the fixed seat (1), the lower ends of the four lifting rods (6) are fixedly connected with a lifting frame (7) together, and a lifting piece used for driving the lifting frame (7) to do reciprocating lifting motion is arranged on the fixed seat (1);

the driving assembly comprises a lifting rack (8) vertically and fixedly connected to the lifting frame (7), a rotating shaft (9) is rotatably connected to the fixing base (1), a main gear (10) meshed with the lifting rack (8) is rotatably connected to the rotating shaft (9), a circular groove (11) is coaxially formed in one side of the main gear (10), a first ratchet wheel (12) located in the circular groove (11) is coaxially and fixedly connected to the rotating shaft (9), and a first pawl (13) meshed with the first ratchet wheel (12) is rotatably connected to the circular groove (11);

a second ratchet wheel (14) and a walking gear (15) are coaxially and fixedly connected to the rotating shaft (9), a second pawl (16) meshed with the second ratchet wheel (14) is rotatably arranged on the fixed seat (1), a translation rack (17) meshed with the walking gear (15) is fixedly connected to the mounting rods (5), a connecting rod (18) is connected between the two mounting rods (5), and the translation rack (17) and the hot pressing die (3) are arranged in an orthogonal mode;

the fixing seat (1) is provided with a reset piece for driving the translation rack (17) to move back to an initial position after translating for a specified distance.

2. The bag making machine as claimed in claim 1, wherein: the reset piece comprises a trigger (19) which is arranged on the fixed seat (1) and is positioned at one end, far away from the translational rack (17), of the mounting rod (5), a gap is reserved between the trigger (19) and the end part of the connecting rod (18), the trigger (19) is electrically connected with a controller, an electromagnet (20) which is positioned above the second pawl (16) is arranged on the fixed seat (1), and the electromagnet (20) is electrically connected with the controller; when the electromagnet (20) is electrified and adsorbs the second pawl (16), the second pawl (16) is disengaged from the second ratchet wheel (14);

the mounting rod (5) is far away from one end of the trigger (19) and fixedly connected with a return spring (21), and the return spring (21) is far away from one end of the mounting rod (5) and the fixed seat (1) in a fixedly connected mode.

3. The bag making machine as claimed in claim 1, wherein: the installation rod (5) cambered surface periphery wall is coated with a rubber layer.

4. The bag making machine as claimed in claim 1, wherein: cooling unit includes that a plurality of rigid couplings are in terminal surface and branch are listed as under hot pressing platform (2) cooling strip (24) of hot pressing mould (3) length direction both sides, cooling strip (24) lateral wall with hot pressing mould (3) lateral wall contact, run through on cooling strip (24) and seted up cooling channel, cooling strip (24) in cooling channel's both ends all communicate there are cooling tube (25), cooling tube (25) and recirculated cooling water intercommunication.

5. The bag making machine as claimed in claim 1, wherein: the lifting piece is connected including articulated connecting rod (26) at terminal surface middle part under crane (7), fixing base (1) below is rotated and is connected with disc (27), connecting rod (26) are kept away from the one end of crane (7) with disc (27) eccentric articulated connection, fixing base (1) below is provided with and is used for the drive rotatory power motor (28) of disc (27).

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