CN114476210A - Medical dressing slicing filling method - Google Patents

Abstract

A medical dressing slicing filling method comprises the following steps: the medical dressing sheet is put into a raw material groove, and the folded corner of the medical dressing sheet is enabled to be arranged upwards in the process of loading; the lower extreme of raw materials groove is equipped with the ejection of compact hook and gets the mouth, and ejection of compact hook gets a mouthful top intercommunication discharge gate, gets mouthful department at the ejection of compact hook and sets up rotatory extracting device, and rotatory extracting device is connected with material feeding unit, and the piece material feeding unit conveys medical dressing piece piecemeal to equidistant filler belt on, equidistant filler belt is used for carrying medical dressing piece to the baling press and packs the processing. The film taking needle adopts a telescopic design, simultaneously the film taking needle is matched with the rotating drum to continuously take films, and then the films are continuously fed through the film separating and feeding device, so that the production efficiency is greatly improved.

Description

Medical dressing slicing filling method

Technical Field

The invention belongs to the field of mechanical and electrical integration equipment in the field of medical industry, and particularly relates to a medical dressing slicing and filling method.

Background

The existing medical dressings (including medical gauze pieces, non-woven fabrics and application plasters) need to be transported and packaged by a filling device; the most common way of taking the film is to adopt manual film taking, and the method comprises the following steps: the required number of raw material pieces is counted manually, then the raw material pieces are sliced manually, and then the raw material pieces are filled into an input groove of a packaging machine and are conveyed and packaged through the input groove. The steps are generally carried out by three operators at the same time, and the working intensity is high.

The mechanical filling is currently explored, and in the prior art, for example, an "automatic filling device for medical dressing" provided by chinese patent document 202020095124.3, the medical dressing is filled on an input belt of a packaging machine by a reciprocating gripping device. The Chinese patent document CN 110861942A discloses a folding gauze slicing method and equipment, which carries out filling by matching a rotating hooking needle with a gripper.

The disadvantages of the two above patent documents are: 1. adhesion exists between two adjacent medical dressings, when a hook needle is used for taking materials or a gripper is used for taking materials, a plurality of medical dressings are easy to drag, and the quality of the taken sheets is poor; 2. the gripper is driven to reciprocate by the oil cylinder, and meanwhile, when the gripper grips the medical dressing, a gripping process is provided, so that the time for taking the dressing once is long, the working efficiency is low, and the manufacturing cost of the whole device is high.

In the prior art, there is also a negative pressure material taking method adopted by equipment, such as a "gauze piece large packaging machine" disclosed in chinese patent document CN 103895888A, which uses a negative pressure suction force generated by vacuum to take a piece, and the method has the following disadvantages: firstly, the medical dressing is generally of a folded sheet structure, the structure of the medical dressing is shown in fig. 11 and 12, when one side of the medical dressing is sucked by a vacuum suction pipe, the other side of the medical dressing is easy to turn over, and the filling is affected; in addition, the medical dressing has good air permeability, and can easily fall off if the vacuum suction force is not enough.

Disclosure of Invention

In view of the technical problems in the background art, the medical dressing slicing and filling method provided by the invention has the advantages that the slicing needle adopts a telescopic design, the slicing needle is matched with the rotating drum to continuously take slices, and then the slices are continuously fed through the slicing and feeding device, so that the production efficiency is greatly improved.

In order to solve the technical problems, the invention adopts the following technical scheme to realize:

a medical dressing slicing filling method comprises the following steps:

s1, charging: the medical dressing sheet is put into a raw material groove, and the folded corner of the medical dressing sheet is enabled to be arranged upwards in the process of loading; the raw material groove is obliquely arranged downwards during initial installation, a discharging hook taking port is formed in the lower end of the raw material groove, the top of the discharging hook taking port is communicated with a discharging port, and the size of the discharging port is matched with the thickness of the medical dressing sheet;

s2, rotating and slicing: a rotary material taking device is arranged at the material taking opening of the discharging hook, the rotary material taking device comprises a rotary drum, a plurality of groups of sheet taking needles are arranged on the rotary drum, and the plurality of groups of sheet taking needles are annularly arranged around the axis of the rotary drum; each group of film taking needles are driven by a telescopic device to reciprocate along the radial direction, when each group of film taking needles move to a discharging hooking opening, the film taking needles extend out to hook a piece of medical dressing film, and then when the hooked medical dressing film rotates by an angle T, the film taking needles retract;

s3, slicing and feeding: arranging a slicing and feeding device at the retracted position of the film taking needle, and transporting the medical dressing film taken by the slicing and hooking in the step S to the next process by the slicing and feeding device;

s4, slicing and filling: the sheet separating and feeding device conveys the medical dressing sheets to the equidistant filling belt which is used for conveying the medical dressing sheets to the packing machine for packing treatment, thereby completing one-time sheet separating and filling operation.

In a preferred embodiment, in steps S1 and S2, the material tank is driven by the pushing device to move back and forth, the pushing device drives the material tank to move obliquely upward every time the sheet taking needle hooks a sheet of medical dressing, and the pushing device drives the material tank to return to the original position before the next set of sheet taking needles moves to the hooking position.

In a preferable scheme, a balancing weight is arranged in the raw material groove and is placed at the uppermost position of the medical dressing sheet.

In a preferred scheme, three groups of sheet taking needles are arranged on the rotary drum, each group comprises a root sheet taking needle, and the sheet taking needles in the single group are linearly arranged along the axial direction of the rotary drum; the included angle between two adjacent groups of the film taking needles is 120 degrees.

In a preferred embodiment, the telescopic device in step S2 includes a cam disposed at an axis inside a drum, the drum is driven by a motor to rotate, the position of the cam is fixed, and the cam does not rotate with the drum; the cam is in rolling connection with a plurality of rollers, and the number of the rollers is matched with the number of the groups of the film taking needles; the roller is connected with the needle frame, and the needle frame is connected with the guide sliding rail in a sliding manner; when the roller moves to the position of the cam bulge, the roller drives the film taking needle to extend out through the needle frame, and when the roller is separated from the position of the cam bulge, the film taking needle retracts.

In a preferred scheme, the rotary drum comprises two hubs which are arranged in parallel, the guide sliding rail is installed on the hubs, an elastic part is arranged on the hubs and used for being connected with the needle frame, and the elastic part is used for providing a retracting resilience force for the needle frame.

In the preferred scheme, a rotating drum driving shaft is sleeved outside the cam fixing shaft and fixedly connected with a wheel hub, a motor drives the rotating drum to rotate through the rotating drum driving shaft, and the cam fixing shaft is fixed on a machine shell of the equipment.

In a preferred scheme, the slicing and feeding device comprises a guide sliding plate and a directional conveying belt, wherein the guide sliding plate is positioned below the directional conveying belt, and a sliding gap of the medical dressing sheet is arranged between the guide sliding plate and the directional conveying belt.

In a preferred scheme, the needle tip of the sheet taking needle is arranged in a bending mode, the needle tip faces the rotating direction of the rotary drum, and the bending angle A of the needle tip is 45 degrees < A <90 degrees.

In a preferable scheme, the directional conveying belt comprises a first rotating roller and a second rotating roller, the first rotating roller is positioned above the second rotating roller, and a gap between the first rotating roller and the rotating roller is slightly smaller than the thickness of the medical dressing sheet; when the sheet taking needle runs to the position of the first rotating roller, the point of the sheet taking needle points to the same direction as the conveying direction of the directional conveying belt.

This patent can reach following beneficial effect:

1. the invention has the biggest advantages over the prior art that: the film taking needle adopts a telescopic design, simultaneously the film taking needle is matched with a rotating drum to continuously take films, then the films are continuously fed through the film separating and feeding device, the production efficiency is greatly improved, three workers need to be equipped to continuously perform film separating and filling without rest in the existing filling mode, and only one worker needs to be arranged to be responsible for adding the medical dressing sheets into the raw material groove. In addition, in the technical scheme, when the film taking needle takes the film, the film taking needle extends out; when the film taking needle retracts, the medical dressing sheet is separated from the film taking needle, so that the problem that the medical dressing sheet is quickly separated from the film taking needle is solved; on the contrary, if the film taking needle cannot stretch, when the film taking needle hooks the medical dressing film, the medical dressing film is difficult to separate from the film taking needle.

2. The connection of the slicing and feeding device and the rotary drum solves the problem that the medical dressing sheet is easy to fall off. When the medical dressing piece is about to be separated from the piece taking needle, the medical dressing piece is just positioned in a gap between a first rotating roller and a rotating drum of the piece feeding device, after the piece taking needle retracts, the medical dressing piece slides downwards along the guide sliding plate, and the whole process that the medical dressing piece is taken does not have the risk of falling. Therefore, the tablet taking stability of the invention is high.

3. Get the design of piece needle point angle and can not cause medical dressing piece damaged, prior art adopts the needle to get the material very big shortcoming and lies in: the film taking needle can puncture the medical dressing film, and particularly, the film taking needle can easily puncture the medical dressing film when the medical dressing film is separated from the film taking needle by a grabbing device (such as a mechanical hand grip) after the film taking needle hooks the medical dressing film. When the sheet taking needle in the technical scheme runs to the position of the first rotating roller, the point direction of the needle point of the sheet taking needle is the same as the conveying direction of the directional conveying belt; meanwhile, the film taking needle retracts to enable the medical film applying piece to be conveyed obliquely downwards, the film taking needle forms a reverse needle withdrawing effect, and the problem that the film taking needle punctures the medical film applying piece is avoided.

4. The telescopic device does not adopt any electric driving structure, and realizes the telescopic of the film taking needle by utilizing the cam to be matched with the roller (402), thereby being beneficial to saving the cost in terms of equipment investment cost; from the technical stability, the electric fault is not easy to occur. As long as the position of the cam is fixed, the telescopic position of the film taking needle is fixed, and the problem that the film taking needle is stretched by mistake is solved, so that the film taking quality is high.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic view of the charging of the present invention;

FIG. 2 is a view showing the lower end structure of the stock tank of the present invention;

FIG. 3 is a schematic diagram of the rotary segment of the present invention;

FIG. 4 is a schematic diagram of the slice feeding of the present invention;

FIG. 5 is a schematic view of a segmented packing of the present invention;

FIG. 6 is a schematic view of a rotary reclaiming apparatus according to the present invention;

FIG. 7 is a front view of the cam of the present invention;

FIG. 8 is an external view of the drum of the present invention;

FIG. 9 is a front view of the needle of the present invention;

FIG. 10 is a schematic view of the extension and retraction of the film-taking needle according to the present invention;

fig. 11 is a schematic diagram of a negative pressure material taking in the prior art.

FIG. 12 is a side view of a prior art traditional Chinese medical dressing.

In the figure: the medical dressing piece feeding device comprises amedical dressing piece 1, araw material groove 2, a discharginghook taking port 201, adischarging port 202, abaffle plate 203, arotary taking device 3, arotary drum 301, a hub 301.1, a cam fixing shaft 301.2, apiece taking needle 302, a rotarydrum driving shaft 303, a telescopic device 4, acam 401, aroller 402, aneedle frame 403, a guide sliding rail 404, a piece separating andfeeding device 5, aguide sliding plate 501, adirectional conveying belt 502, anequidistant filling belt 6 and a pushingdevice 7.

Detailed Description

A preferred embodiment is shown in fig. 1 to 10, and a method for filling medical dressings in a segmented manner comprises the following steps:

s1, charging: themedical dressing sheet 1 is loaded into theraw material groove 2, and the folded corner of themedical dressing sheet 1 is ensured to be arranged upwards in the loading process; theraw material groove 2 is obliquely arranged downwards during initial installation, the lower end of theraw material groove 2 is provided with a discharginghook taking port 201, the top of the discharginghook taking port 201 is communicated with adischarging port 202, and the size of thedischarging port 202 is matched with the thickness of themedical dressing sheet 1;

s2, rotating and slicing: a rotary material takingdevice 3 is arranged at the position of the discharginghook taking port 201, the rotary material takingdevice 3 comprises arotary drum 301, a plurality of groups ofsheet taking needles 302 are arranged on therotary drum 301, and the plurality of groups ofsheet taking needles 302 are annularly arranged around the axis of therotary drum 301; each group offilm taking needles 302 are driven by the telescopic device 4 to reciprocate along the radial direction, when each group offilm taking needles 302 move to thedischarging hooking opening 201, thefilm taking needles 302 extend to hook a piece ofmedical dressing sheet 1, and then when the hookedmedical dressing sheet 1 rotates for a T angle, thefilm taking needles 302 retract;

the T angle is determined by the number of sets of pick-up pins 302, and when pick-up pins 302 are in three sets, T =120 °. Theraw material tank 2 in this embodiment may be provided with two material accommodating grooves, and accordingly, thesheet taking needle 302 in each group ofsheet taking needles 302 may also be correspondingly aligned with the two material outlethook taking openings 201, so that twomedical dressing sheets 1 can be removed at one time.

As shown in fig. 2, the lower end of theraw material tank 2 is provided with abaffle 203, and thebaffle 203 is provided with a notch which forms thedischarge port 202, so that only onemedical dressing sheet 1 can be taken out at a time from thedischarge port 202. The size of the discharginghook taking opening 201 is smaller than the length and the width of themedical dressing sheet 1, so that themedical dressing sheet 1 can be prevented from falling downwards, and meanwhile, the discharginghook taking opening 201 provides a hooking space for thesheet taking needle 302.

S3, slicing and feeding: arranging a piece-separating andfeeding device 5 at the retracted position of the piece-takingneedle 302, and transporting themedical dressing piece 1 which is hooked in the step S2 to the next process by the piece-separating andfeeding device 5;

the connection of the slicing andfeeding device 5 and therotary drum 301 solves the problem that the medical dressing sheet is easy to fall off. When themedical dressing sheet 1 is about to be separated from thesheet taking needle 302, the medical dressing sheet is just positioned at the gap between the first rotating roller and the rotating drum of the sheet separating andfeeding device 5, after the sheet taking needle retracts, the medical dressing sheet slides downwards along theguide sliding plate 501, meanwhile, the directional conveyingbelt 502 drives themedical dressing sheet 1 to slide downwards by means of friction force, and the whole process of taking the medical dressing sheet has no falling risk.

S4, slicing and filling: the slicing andfeeding device 5 is used for conveying themedical dressing pieces 1 to the equidistant packing strips 6 in a slicing mode, and the equidistant packing strips 6 are used for conveying themedical dressing pieces 1 to the packing machine for packing. Theequidistant packing belt 6 is an input belt of the existing packing machine, and the input belt is provided with equidistant groove boxes.

Further, in step S1 and step S2, theraw material tank 2 is driven by the pushingdevice 7 to reciprocate, and each time thesheet taking needle 302 takes one piece of themedical dressing sheet 1 by hooking, the pushingdevice 7 drives theraw material tank 2 to move obliquely upward, and the pushingdevice 7 drives theraw material tank 2 to return to the original position before the next set of thesheet taking needles 302 moves to the hooking position.

The reciprocating motion of theraw material groove 2 can enable themedical dressing sheet 1 to move downwards by inertia, and after themedical dressing sheet 1 is reduced in number, themedical dressing sheet 1 needing to be sliced can be added to theraw material groove 2.

Further, a weight member is provided in theraw material tank 2, and the weight member is placed at the uppermost position of themedical dressing sheet 1. The weight increases the inertia of the downward movement of themedical dressing sheet 1.

Further, three groups of thefilm taking needles 302 on therotary drum 301 are arranged, each group comprises 1-5film taking needles 302, and thefilm taking needles 302 in each group are linearly arranged along the axial direction of therotary drum 301; the included angle between two adjacent groups of thesheet taking needles 302 is 120 degrees.

Further, the retracting device 4 in step S2 includes acam 401, thecam 401 is disposed at the axis inside thedrum 301, thedrum 301 is driven to rotate by the motor, thecam 401 is fixed in position, and thecam 401 does not rotate with thedrum 301; thecam 401 is in rolling connection with a plurality ofrollers 402, and the number of therollers 402 is matched with the number of the groups of thefilm taking needles 302; theroller 402 is connected with aneedle frame 403, and theneedle frame 403 is connected with a guide sliding rail 404 in a sliding manner; when theroller 402 moves to the position where thecam 401 protrudes, theroller 402 drives thesheet taking needle 302 to extend through theneedle frame 403, and when theroller 402 is separated from the position where thecam 401 protrudes, thesheet taking needle 302 retracts.

Further, thedrum 301 includes two hubs 301.1 arranged in parallel, the guide rail 404 is mounted on the hubs 301.1, and the hubs 301.1 are provided with elastic members, the elastic members are used for connecting theneedle frame 403, and the elastic members are used for providing a retracting resilience force for theneedle frame 403.

As shown in fig. 6 and 10, thecam 401 provides a rotating track for theroller 402, and thecam 401 is stationary at the later stage of initial installation, so that thefilm taking needle 302 is retracted at a fixed position.

Further, adrum driving shaft 303 is sleeved outside the cam fixing shaft 301.2, thedrum driving shaft 303 is fixedly connected with the hub 301.1, the motor drives thedrum 301 to rotate through thedrum driving shaft 303, and the cam fixing shaft 301.2 is used for being fixed on the equipment shell. The cam fixed shaft 301.2 is rotationally connected with the rotarydrum driving shaft 303 through a bearing, the motor drives the rotarydrum driving shaft 303 to rotate, and the motor does not drive the cam fixed shaft 301.2 to rotate.

Further, the slicing andfeeding device 5 comprises aguide sliding plate 501 and adirectional conveyer belt 502, theguide sliding plate 501 is positioned below thedirectional conveyer belt 502, and a gap for sliding themedical dressing sheet 1 is arranged between theguide sliding plate 501 and thedirectional conveyer belt 502.

Further, the needle tip of thesheet taking needle 302 is bent, and the needle tip faces the direction of rotation of thedrum 301, and the bending angle a of the needle tip is 45 ° < a <90 °.

Further, thedirectional conveyer belt 502 comprises a first rotating roller and a second rotating roller, the first rotating roller is positioned above the second rotating roller, and the gap between the first rotating roller and therotating drum 301 is slightly smaller than the thickness of themedical dressing sheet 1; when thesheet taking needle 302 runs to the first rotating roller position, the point of thesheet taking needle 302 points to the same direction as the conveying direction of the directional conveyingbelt 502.

When thesheet taking needle 302 in the technical scheme runs to the position of the first rotating roller, the point direction of thesheet taking needle 302 is the same as the conveying direction of the directional conveyingbelt 502; meanwhile, thefilm taking needle 302 retracts to the medical dressing film and is transported obliquely downwards, thefilm taking needle 302 forms a reverse needle withdrawing effect, and the problem that thefilm taking needle 302 punctures the medical dressing film is avoided.

Claims (10)

1. A medical dressing slicing filling method is characterized by comprising the following steps:

s1, charging: the medical dressing piece (1) is placed into the raw material groove (2), and the folded corner of the medical dressing piece (1) is arranged upwards in the loading process; the raw material groove (2) is obliquely and downwards arranged during initial installation, a discharging hook taking port (201) is formed in the lower end of the raw material groove (2), the top of the discharging hook taking port (201) is communicated with a discharging port (202), and the size of the discharging port (202) is matched with the thickness of the medical dressing sheet (1);

s2, rotating and slicing: a rotary material taking device (3) is arranged at the position of the discharging hook taking port (201), the rotary material taking device (3) comprises a rotary drum (301), a plurality of groups of sheet taking needles (302) are arranged on the rotary drum (301), and the plurality of groups of sheet taking needles (302) are annularly arranged around the axis of the rotary drum (301); each group of film taking needles (302) is driven by a telescopic device (4) to reciprocate along the radial direction, when each group of film taking needles (302) moves to a discharging hooking opening (201), the film taking needles (302) extend out to hook a piece of medical dressing sheet (1), and then when the hooked medical dressing sheet (1) rotates for a T angle, the film taking needles (302) retract;

s3, slicing and feeding: arranging a piece-separating and feeding device (5) at the retracted position of the piece-taking needle (302), and transporting the medical dressing piece (1) which is taken by the piece-separating and hooking in the step S2 to the next process by the piece-separating and feeding device (5);

s4, slicing and filling: the slicing and feeding device (5) conveys the medical dressing pieces (1) to the equidistant filling strips (6) in a slicing mode, and the equidistant filling strips (6) are used for conveying the medical dressing pieces (1) to the packing machine for packing, so that one-time slicing and filling operation is completed.

2. The method of medical dressing split packing according to claim 1, wherein: in the steps S1 and S2, the raw material groove (2) is driven by the pushing device (7) to move back and forth, when the sheet taking needle (302) hooks a piece of medical dressing sheet (1), the pushing device (7) drives the raw material groove (2) to move obliquely upwards, and before the next group of sheet taking needles (302) move to the hooking position, the pushing device (7) drives the raw material groove (2) to return to the original position.

3. The method for filling a sheet of medical dressing according to claim 2, wherein: a balancing weight is arranged in the raw material groove (2), and the balancing weight is placed at the uppermost position of the medical dressing sheet (1).

4. The sheet packing method for medical dressings according to claim 2 or 3, wherein: the sheet taking needles (302) on the rotary drum (301) are provided with three groups, each group comprises 1-5 sheet taking needles (302), and the sheet taking needles (302) in each group are linearly arranged along the axial direction of the rotary drum (301); the included angle between two adjacent groups of the film taking needles (302) is 120 degrees.

5. The method for filling a sheet of medical dressing according to claim 4, wherein: the telescopic device (4) in the step S2 comprises a cam (401), the cam (401) is arranged at the axis in the rotary drum (301), the rotary drum (301) is driven to rotate by a motor, the position of the cam (401) is fixed, and the cam (401) does not rotate along with the rotary drum (301); the cam (401) is in rolling connection with a plurality of rollers (402), and the number of the rollers (402) is matched with the number of the groups of the film taking needles (302); the roller (402) is connected with the needle frame (403), and the needle frame (403) is connected with the guide sliding rail (404) in a sliding manner; when the roller (402) moves to the position where the cam (401) protrudes, the roller (402) drives the sheet taking needle (302) to extend out through the needle frame (403), and when the roller (402) is separated from the position where the cam (401) protrudes, the sheet taking needle (302) retracts.

6. The method for filling a sheet of medical dressing according to claim 5, wherein: the rotary drum (301) comprises two hubs (301.1) arranged in parallel, the guide sliding rail (404) is installed on the hubs (301.1), an elastic part is arranged on the hubs (301.1), the elastic part is used for being connected with the needle frame (403), and the elastic part is used for providing the rebounding force for retraction of the needle frame (403).

7. The method for filling a sheet of medical dressing according to claim 6, wherein: the outer part of the cam fixed shaft (301.2) is sleeved with a rotating drum driving shaft (303), the rotating drum driving shaft (303) is fixedly connected with a hub (301.1), a motor drives the rotating drum (301) to rotate through the rotating drum driving shaft (303), and the cam fixed shaft (301.2) is used for being fixed on a machine shell of the equipment.

8. The method for filling a sheet of medical dressing according to claim 7, wherein: the slicing and feeding device (5) comprises a guide sliding plate (501) and a directional conveying belt (502), the guide sliding plate (501) is positioned below the directional conveying belt (502), and a sliding gap of the medical dressing sheet (1) is formed between the guide sliding plate (501) and the directional conveying belt (502).

9. The method for filling a sheet of medical dressing according to claim 8, wherein: the needle point of the sheet taking needle (302) is arranged in a bending mode, the needle point faces the rotating direction of the rotary drum (301), and the bending angle A of the needle point is 45 degrees < A <90 degrees.

10. The method of packing a medical dressing in pieces according to claim 9, wherein: the directional conveying belt (502) comprises a first rotating roller and a second rotating roller, the first rotating roller is positioned above the second rotating roller, and the gap between the first rotating roller and the rotating drum (301) is slightly smaller than the thickness of the medical dressing sheet (1); when the sheet taking needle (302) runs to the position of the first rotating roller, the tip of the sheet taking needle (302) points to the same direction as the conveying direction of the directional conveying belt (502).

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