Disclosure of Invention
The invention aims to provide a three-dimensional bag manufacturing device and method, which achieve the purpose of good and stable crease forming effect, are suitable for a traditional packaging machine, and simplify the processing difficulty while not destructively modifying the packaging machine.
The technical aim of the invention is realized by the following technical scheme:
the utility model provides a three-dimensional bag making devices, includes the frame, wherein, connect gradually in the frame and be used for carrying out folding mechanism, the preheating mechanism that is used for preheating to the packaging film after folding with flat packaging film in the advancing process and be used for carrying out hot briquetting's shaping mechanism to the packaging film after preheating, still be provided with the pay-off subassembly of transmission packaging film in the frame.
The three-dimensional bag manufacturing device comprises a folding mechanism, wherein the folding mechanism comprises a processing platform arranged at the upper end of the frame, a guide component used for downwards folding two sides of a packaging film is arranged at the front end of the processing platform, and a forming guide component used for folding the packaging film out of an M shape is arranged at the outer side of the processing platform.
The three-dimensional bag manufacturing device comprises a material guide assembly, a packaging film and a packaging film, wherein the material guide assembly comprises a material guide plate and a power wheel, the material guide plate is abutted to the front end of the processing platform, the power wheel is arranged at the front end of the material guide plate and used for compensating the advancing power of the packaging film, and the width of one end of the material guide plate, which is abutted to the processing platform, is smaller than the width of one end deviating from the processing platform.
The three-dimensional bag manufacturing device is characterized in that the material guiding assembly further comprises a material guiding rod used for assisting the folding of the packaging film, a fixing rod fixed on the frame is arranged below the processing platform, the material guiding rod is connected to the fixing rod and is obliquely arranged upwards, and the material guiding rod is arranged at the joint of the processing platform and the material guiding plate.
The three-dimensional bag manufacturing device comprises a guide plate, a pressing plate, a side plate and a plug sheet, wherein the guide plate is arranged on the outer side of a processing platform and used for shaping a folded packaging film, the pressing plate is arranged at the upper end of the processing platform, the packaging film is attached to the processing platform, the side plate is arranged on the side surface of the processing platform, the plug sheet is connected with the plug sheet on the side plate in a sliding mode, the plug sheet is arranged below the processing platform, so that the packaging film enters between the processing platform and the plug sheet in the advancing process, a first M mark is folded, a baffle is arranged at the lower end of the processing platform, and the packaging film enters between the plug sheet and the baffle in the advancing process, so that a second M mark is folded.
The three-dimensional bag manufacturing device is characterized in that a fixed table for bearing the side plates is arranged on the frame, a guide rail and a sliding block which is connected with the guide rail in a sliding mode are arranged at the upper end of the fixed table, the side plates are arranged on the sliding block through connecting blocks, and a screw rod assembly for driving the sliding block to slide along the guide rail is further arranged on the frame.
The three-dimensional bag manufacturing device comprises a preheating mechanism, a processing platform and a packaging film, wherein the preheating mechanism comprises a preheating block used for clamping the packaging film and arranged on the processing platform, and a heating pipe is arranged in the preheating block; the lower end of the frame is provided with a supporting frame, and the feeding assembly comprises a feeding roller arranged on the supporting frame.
The utility model provides a three-dimensional bag making device, wherein, shaping mechanism including set up in mount in the frame, through the drive shaft rotate connect in the hot pressing tight pulley of mount and butt in hot pressing tight pulley upper end and sliding connection in the hot pressing adjustment wheel of mount, sliding connection has the regulating block on the mount, the hot pressing adjustment wheel rotate through the guiding axle connect in the regulating block, one side of frame is provided with the motor, the motor passes through the drive of synchronous belt assembly the hot pressing tight pulley rotates.
The three-dimensional bag manufacturing device is characterized in that the fixing frame is provided with a bearing seat which is arranged at the lower end of the hot-pressing fixing wheel and used for bearing the hot-pressing fixing wheel and an adjusting seat which is arranged at the upper end of the hot-pressing adjusting wheel and used for adjusting the pressure between the hot-pressing fixing wheel and the hot-pressing adjusting wheel.
A method of making a three-dimensional bag as defined in any one of the preceding claims, comprising the steps of:
feeding the packaging film into a folding mechanism through a feeding assembly;
folding the flat packaging film in the advancing process through a folding mechanism;
heating and softening the folded packaging film through a preheating mechanism to strengthen the crease effect;
and carrying out hot press molding on the preheated packaging film through a shaping mechanism.
In summary, the invention is suitable for various circulation packaging machines and specifications of packaging films, and can manufacture M-shaped folds with good and stable forming effect without destructive transformation of the packaging machine, thereby simplifying construction period and processing difficulty, and ensuring that folds are not easy to fade and disappear even if the packaging film is placed for a long time, so as to obtain a three-dimensional bag finished product which is comparable to prefabricated folds.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Examples: the utility model provides a three-dimensional bag making devices, as shown in fig. 1 and 2, includes frame 1, folding mechanism 2, preheating mechanism 3 and forming mechanism 4 have been connected gradually in frame 1, still be provided with feeding subassembly 5 in the frame 1, frame 1 lower extreme is provided with support frame 51, feeding subassembly 5 is including setting up the feed roll 52 on support frame 51, and the feed roll 52 is docked with the roll film material feeding unit of assembly line front end and with packaging film forward conveying. The folding mechanism 2 is used for folding a flat packaging film into an M shape according to specified specifications in the running process, the preheating mechanism 3 is used for preheating the folded packaging film, and the shaping mechanism 4 is used for carrying out hot press forming on the preheated packaging film by adjusting proper pressure and temperature.
The folding mechanism 2 comprises a processing platform 21 arranged at the upper end of the frame 1, a cross beam 11 is arranged on the frame 1, the processing platform 21 is fixedly connected to the cross beam 11 through a supporting plate 211, a material guiding component 22 for downwards folding two sides of a packaging film is arranged at the front end of the processing platform 21, and a forming guide component 23 for folding the packaging film out of an M shape is arranged at the outer side of the processing platform 21.
The guide assembly 22 includes a guide plate 221, a power wheel 224, and a guide rod 225. The guide plate 221 is abutted to the front end of the processing platform 21 and is obliquely arranged downwards, and the width of one end of the guide plate 221 abutted to the processing platform 21 is smaller than that of one end deviating from the processing platform 21, so that the two sides of the packaging film are gradually folded downwards while the packaging film is conveyed.
The front end of the stock guide 221 is extended and provided with a stock receiving plate 222, two sides of the stock receiving plate 222 are downwards folded to form a turnover edge 223, a power wheel 224 is arranged at the front end of the stock receiving plate 222 and is rotationally connected between the two turnover edges 223, and the power wheel 224 is used for compensating the advancing power of the packaging film. In this embodiment, the power wheel 224 is a driven wheel, and in other embodiments, a motor for driving the power wheel 224 to rotate and matching the speed of the film winding and packaging machine may be further provided.
The guide rod 225 is used for assisting the folding of the packaging film, a fixing rod 226 is arranged on the frame 1, the fixing rod 226 is arranged below the processing platform 21, the guide rod 225 is connected to the fixing rod 226 and is obliquely upwards arranged, and the guide rod 225 is arranged at the joint of the processing platform 21 and the guide plate 221. In this embodiment, the fixing rod 226 is a cylindrical rod, the guide rod 225 is sleeved on the outer side of the fixing rod 226 through a fixing sleeve 227 and is fixed through a fastener, and both sides of the guide plate 221 are provided with the guide rods 225. When the packaging films with different specifications are matched, the position of the material guide rod 225 is adjusted by sliding or rotating the material guide rod 225, so that the packaging films with different specifications are matched.
As shown in fig. 2 and fig. 4, the forming guide assembly 23 includes a guide plate 231 and a pressing plate 232, the guide plate 231 is disposed on the outer side of the processing platform 21 and is used for shaping the folded packaging film, the guide plate 231 is disposed along the length direction of the frame 1, the guide plate 231 includes a guide transverse plate 2311 disposed on the upper end of the processing platform 21 and a guide side plate 2312 disposed on the side surface of the processing platform 21, the guide transverse plate 2311 is perpendicular to the guide side plate 2312, and front ends of the guide transverse plate 2311 and the guide side plate 2312 are both turned outwards to adapt to the movement track of the packaging film better.
The pressure flitch 232 set up in the upper end of processing platform 21, so that the packaging film better laminating in processing platform 21, the upper end of pressure flitch 232 be provided with spliced pole 2321 and with spliced pole 2321 adaptation's balancing weight 2322, thereby the packaging film of different specifications of adaptation.
The forming guide assembly 23 further comprises a side plate 233, an inserting piece 234 and a baffle 235, and the side plate 233, the inserting piece 234 and the baffle 235 are disposed on two sides of the processing platform 21. The side plate 233 is arranged on the side surface of the processing platform 21, the inserting piece 234 is slidably connected to the side plate 233 and is fixed by a fastener, the inserting piece 234 is arranged below the processing platform 21, so that a packaging film enters between the processing platform 21 and the inserting piece 234 in the advancing process, a first M mark is folded, and a first guide portion 2341 for guiding a wedge shape of the packaging film is arranged at the front end of the inserting piece 234.
The baffle 235 is disposed at the lower end of the processing platform 21, the lower end of the inserting piece 234, i.e. the inserting piece 234 is disposed between the processing platform 21 and the baffle 235, so that the packaging film enters between the inserting piece 234 and the baffle 235 in the advancing process, and thus a second trace M is folded, and the front end of the baffle 235 is circular arc.
In this embodiment, a bottom support plate 28 is further disposed on the inner side of the side plate 233, and the bottom support plate 28 is inserted into the inner side of the side plate 233, so as to support the packaging film integrally and convey the packaging film flatly into the preheating mechanism 3. The front end of the bottom plate 28 is provided with a wedge-shaped second guide portion 281 for guiding the packaging film.
As shown in fig. 2 and 3, a fixed table 24 is disposed on the frame 1, the fixed table 24 is used for carrying the side plate 233, the fixed table 24 is perpendicular to the processing platform 21, a guide rail 25 is disposed at an upper end of the fixed table 24, a sliding block 251 is slidably connected to the guide rail 25, the side plate 233 is disposed on the sliding block 251 through a connecting block 252, the side plate 233 is detachably connected with the connecting block 252 through a fastener, and a screw assembly for driving the sliding block 251 to slide along the guide rail 25 is further disposed on the frame 1.
Specifically, the screw assembly includes a screw fixing seat 26 fixedly disposed on the frame 1 and a bidirectional screw 27 rotatably connected to the screw fixing seat 26, two sliders 251 symmetrically disposed on the guide rail 25 for carrying the two side plates 233 are slidably connected to the guide rail 25, and the two sliders 251 are respectively in threaded connection with a left-handed portion and a right-handed portion of the bidirectional screw 27. Therefore, when the screw rod is rotated, the two sliding blocks 251 on the screw thread are separated towards the two ends or are close to the middle, and then the position adjustment of the two-side plugboards is completed at the same time.
As shown in fig. 2, the preheating mechanism 3 includes a preheating block 31 for clamping the packaging film and disposed on the processing platform 21, and a heating pipe is disposed in the preheating block 31. Specifically, the preheating mechanism 3 comprises two preheating copper blocks for clamping the packaging film, and heating pipes are arranged in the two preheating copper blocks.
As shown in fig. 1 and 5, the shaping mechanism 4 includes a fixing frame 41, a heat-pressing fixing wheel 42 and a heat-pressing adjusting wheel 43 disposed on the frame 1, the heat-pressing fixing wheel 42 is rotatably connected to the fixing frame 41 through a driving shaft 421, the heat-pressing adjusting wheel 43 is abutted to the upper end of the heat-pressing fixing wheel 42, the heat-pressing adjusting wheel 43 is slidably connected to the fixing frame 41 through an adjusting block 44, the adjusting block 44 is slidably connected to the fixing frame 41, and the heat-pressing adjusting wheel 43 is rotatably connected to the adjusting block 44 through an adjusting shaft 431. A motor is arranged on one side of the frame 1, and drives the hot press fixing wheel 42 to rotate through a synchronous belt assembly 46.
In this embodiment, the servo motor 45 drives the hot pressing fixed wheel 42 to rotate, so as to match the speed of the film rolling and packaging machine in the processing line, in other embodiments, the servo motor 45 may also drive the power wheel 224 to rotate at the same time, so as to supplement the power of the film rolling, and offset the speed mismatch of the film rolling caused by friction and the like in the advancing process of the packaging film.
The fixing frame 41 is provided with a bearing seat 47, the bearing seat 47 is arranged at the lower end of the hot-press fixing wheel 42 and is used for bearing the hot-press fixing wheel 42, the upper end of the fixing frame 41 is provided with a pressure adjusting frame 48, the lower end of the pressure adjusting frame 48 is provided with an adjusting seat 49, the adjusting seat 49 is connected with the pressure adjusting frame 48 through an adjusting piece, in the embodiment, the adjusting piece is preferably an adjusting bolt, the adjusting seat 49 is arranged at the upper end of the hot-press adjusting wheel 43 and is used for adjusting the pressure between the hot-press fixing wheel 42 and the hot-press adjusting wheel 43, so that proper pressure is adjusted when packaging films with different specifications are adapted.
Because the hot pressing wheel is only insufficient to heat the folded packaging film, the contact time of the heated hot pressing wheel on the film line is extremely short, and therefore, the preheating mechanism is arranged to preheat the packaging film before the packaging film enters the shaping mechanism.
The upper end of the processing platform is also provided with an unfolding plate of the butt joint assembly line rear end packaging machine, the tail end of the unfolding plate is provided with a flat-laying guide rod, and the flat-laying guide rod inclines towards the outer side of the conveying direction of the packaging film, so that the folding mark of the packaging film is unfolded to a flat-laying state after being formed.
The invention also provides a method for manufacturing the three-dimensional bag, which is shown in fig. 6 and comprises the following steps:
s100, conveying the packaging film into a folding mechanism through a feeding assembly.
After the packaging film passes through the power wheel, the packaging film enters the folding mechanism, and the packaging film needs to be ensured to stably advance in the process of folding the packaging film into an M shape, so that the power wheels are arranged before and after folding so as to ensure that the packaging film stably moves.
And S200, folding the flat packaging film in the advancing process through a folding mechanism.
After the packaging film enters the folding mechanism, the packaging film is folded through the forming guide, and the forming guide is adjustable, so that the folding width and the folding height are adjusted according to different packaging specifications.
S300, heating and softening the folded packaging film through a preheating mechanism so as to strengthen the crease effect.
After the packaging film is folded and formed, the packaging film enters a preheating mechanism to moderately heat and soften the packaging film, and the packaging film has an important function of keeping the M-shaped crease stable.
S400, carrying out hot press molding on the preheated packaging film through a shaping mechanism.
After the packaging film is preheated, the packaging film enters a shaping mechanism, and the pressure of the shaping mechanism to the packaging film is adjusted and moderately heated to press stable folds.
Further, the packaging film passing through the hot pressing wheel is provided with the M-shaped crease, and the packaging film is unfolded and flattened through the unfolding plate, so that the packaging film pressed with the M-shaped crease can be matched with a general packaging machine without additional adjustment.
In summary, the invention is applicable to various flow-through packaging machines and specifications of packaging films, and can manufacture M-shaped folds with good and stable forming effect without destructive transformation of the packaging machine, thereby simplifying construction period and processing difficulty, and ensuring that folds are not easy to fade and disappear even if the packaging film is placed for a long time, so as to obtain a three-dimensional bag finished product which is comparable to prefabricated folds.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.