CN223658560U - Sealing packaging machine - Google Patents

Abstract

The utility model provides a sealing and packaging machine, which comprises a workbench, wherein a first conveying mechanism and a second conveying mechanism are sequentially arranged on the workbench along the horizontal direction, a first sealing mechanism is arranged above the first conveying mechanism, a second sealing mechanism is arranged between the first conveying mechanism and the second conveying mechanism, the first conveying mechanism is used for guiding a packaging film to be sealed to move, the first sealing mechanism is used for heat-sealing the side edge of the packaging film, the second sealing mechanism is used for heat-sealing and cutting off the packaging film with the side edge heat-sealed, and the second conveying mechanism is used for guiding the packaging film with the sealed side edge to move. The second sealing mechanism can heat-seal and cut the packaging film with the side heat-sealed edges, so that the sealing and cutting processes are carried out on the same packaging machine, the processes are reduced, and the efficiency is improved.

Description

Sealing packaging machine

Technical Field

The utility model relates to the technical field of sealing packaging, in particular to a sealing packaging machine.

Background

The sealing machine is a machine for sealing a container filled with a packing material, and after the packing material is filled into the packing container, the sealing machine is used for sealing the packing container to finish the operation so as to ensure that the packing container can be stored in a sealing way, maintain the quality of the packing material and avoid the loss of the packing material.

Along with the rapid development of science and technology, the sealing packaging machine is also technically improved, but because the function of the packaging machine in the market is single, the sealing packaging machine can only carry out transverse sealing after the longitudinal sealing of a cylindrical film, and after the sealing is finished, the sealing packaging machine is transferred to other equipment for cutting or is manually cut, so that the working procedure is increased, and the efficiency is reduced.

Disclosure of utility model

Accordingly, the present utility model is directed to a sealing and packaging machine, and aims to solve the problem that in the prior art, a longitudinal sealing mechanism, a transverse sealing mechanism and a cutting mechanism of an automatic sealing and packaging machine are all matched with a large number of transmission gears and transmission chains through one to two driving motors to perform synchronous actions, so that the output rotation speeds of the final mechanisms are inconsistent, and if the speeds are inconsistent, the packaging units to be finally cut are not sealed and cut at the same position.

The utility model provides a sealing and packaging machine, which comprises a workbench, wherein a first conveying mechanism and a second conveying mechanism are sequentially arranged on the workbench along the horizontal direction, a first sealing mechanism is arranged above the first conveying mechanism, a second sealing mechanism is arranged between the first conveying mechanism and the second conveying mechanism, the first conveying mechanism is used for guiding a packaging film to be sealed to move, the first sealing mechanism is used for heat-sealing the side edge of the packaging film, the second sealing mechanism is used for heat-sealing and cutting off the packaging film with the side edge heat-sealed, and the second conveying mechanism is used for guiding the packaging film with the sealed side edge to move.

Further, the first conveying mechanism comprises a first conveying belt, a first conveying roller, a first driving device and a first conveying frame, wherein the first conveying roller is rotationally connected to the first conveying frame, the first conveying roller is connected with a power output end of the first driving device, a plurality of first conveying rollers are arranged, and the first conveying belt is wound on a plurality of first conveying rollers.

Further, the first sealing mechanism comprises a first guide wheel, a second guide wheel, a first heat sealing block and a first sealing frame, wherein the first guide wheel and the second guide wheel are both rotationally connected to the first sealing frame, the first heat sealing block is arranged on the first sealing frame, the first guide wheel, the first heat sealing block and the second guide wheel are sequentially arranged along the horizontal direction and are both provided with two, the two first guide wheels are symmetrically arranged to fold the side edges of the packaging film, the two first heat sealing blocks are symmetrically arranged to preheat the side edges of the folded packaging film, and the two second guide wheels are symmetrically arranged to bond the side edges of the preheated packaging film.

Further, the second conveying mechanism comprises a second conveying belt, a second conveying roller, a second driving device and a second conveying frame, the second conveying roller is rotationally connected to the second conveying frame, the second conveying roller is connected with the power output end of the second driving device, a plurality of second conveying rollers are arranged, and the second conveying belt is wound on a plurality of second conveying rollers.

Further, the second conveying frame comprises a sliding frame and a fixing frame, the sliding frame and the fixing frame are both provided with second conveying rollers, the second sealing mechanism is arranged on the sliding frame, the sliding frame is in sliding connection with the fixing frame, a first driving assembly is arranged on the fixing frame and used for driving the sliding frame to slide horizontally relative to the fixing frame.

Further, the sliding frame comprises a first sliding frame and a second sliding frame, the second sealing mechanism comprises a second driving assembly and a second heat sealing assembly, the second driving assembly is arranged on the first sliding frame, the second heat sealing assembly is arranged on the second sliding frame, the first sliding frame is connected to the fixing frame in a sliding mode, the second sliding frame is connected to the first sliding frame in a sliding mode, the first driving assembly is used for driving the first sliding frame to drive the second sliding frame to slide in the horizontal direction, and the second driving assembly is used for driving the second sliding frame to drive the second heat sealing assembly to slide in the vertical direction.

Further, the first driving assembly comprises a first driving motor and a first eccentric wheel, the first driving motor is arranged on the fixing frame, the first eccentric wheel is in transmission connection with the first driving motor, the first eccentric wheel is in transmission connection with the first sliding frame, and the first driving motor is used for driving the first eccentric wheel to rotate so as to drive the first sliding frame to horizontally reciprocate on the fixing frame.

Further, the second heat seal assembly comprises an upper heat seal seat and a lower heat seal seat, the upper heat seal seat and the lower heat seal seat are both in sliding connection with the second sliding frame, the second driving assembly comprises a second driving motor, a second driving shaft, an upper eccentric wheel and a lower eccentric wheel, the second driving shaft is in transmission connection with the second driving motor, the upper eccentric wheel and the lower eccentric wheel are respectively arranged at two ends of the second driving shaft, the upper eccentric wheel is in transmission connection with the upper heat seal seat, the lower eccentric wheel is in transmission connection with the lower heat seal seat, and the second driving motor is used for driving the upper eccentric wheel and the lower eccentric wheel to synchronously rotate so as to drive the upper heat seal seat and the lower heat seal seat to slide in the vertical direction to perform opening and closing actions.

Further, a telescopic cylinder is arranged on the upper heat sealing seat, a cutter is arranged at the power output end of the telescopic cylinder, and the telescopic cylinder is used for driving the cutter to cut off the packaging film with the sealed package film.

Further, a pressing device is arranged on the upper heat sealing seat and used for pressing the packaging film in the heat sealing process of the second sealing mechanism.

The sealing packaging machine has the beneficial effects that the sealing packaging machine comprises a workbench, a first conveying mechanism and a second conveying mechanism are sequentially arranged on the workbench along the horizontal direction, a first sealing mechanism is arranged above the first conveying mechanism, a second sealing mechanism is arranged between the first conveying mechanism and the second conveying mechanism, the first conveying mechanism is used for guiding a packaging film to be sealed to move, the first sealing mechanism is used for heat-sealing the side edge of the packaging film, the second sealing mechanism is used for heat-sealing and cutting off the packaging film with the side edge heat-sealed, and the second conveying mechanism is used for guiding the sealed packaging film to move. The second sealing mechanism can heat-seal and cut the packaging film with the side heat-sealed edges, so that the sealing and cutting processes are carried out on the same packaging machine, the processes are reduced, and the efficiency is improved.

Drawings

FIG. 1 is a schematic view showing the overall structure of a sealing and packaging machine of the present utility model;

FIG. 2 is a schematic view of the connection of the carriage and the mount;

FIG. 3 is a schematic structural view of a fixing frame;

FIG. 4 is a schematic view of a second conveyor mechanism;

FIG. 5 is a schematic structural view of a carriage;

FIG. 6 is a schematic view of another view of the carriage;

FIG. 7 is a schematic diagram of a second drive assembly;

FIG. 8 is a schematic view of the structure in which the upper heat seal block and the lower heat seal block are slidably coupled to the second slide frame;

fig. 9 is a schematic structural view of the first sealing mechanism.

10, Workbench, 1, first conveying mechanism, 11, first conveying belt, 12, first conveying roller, 14, first conveying frame, 2, second conveying mechanism, 21, second conveying belt, 22, second conveying roller, 24, second conveying frame, 25, sliding frame, 251, first sliding frame, 252, second sliding frame, 26, fixing frame, 27, first driving component, 271, first driving motor, 272, first eccentric wheel, 3, first sealing mechanism, 31, first guiding wheel, 32, second guiding wheel, 33, first heat sealing block, 34, first sealing frame, 4, second sealing mechanism, 41, second driving component, 411, second driving motor, 412, second driving shaft, 413, upper eccentric wheel, 414, lower eccentric wheel, 42, second heat sealing component, 421, upper heat sealing seat, 422, lower heat sealing seat, 423, telescopic cylinder, 424, 425, pressing device, 426, spring, 427, pressing pad, 5 and power box.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 9, the present utility model provides a sealing and packaging machine, including a workbench 10, a first conveying mechanism 1 and a second conveying mechanism 2 are sequentially disposed on the workbench 10 along a horizontal direction, a first sealing mechanism 3 is disposed above the first conveying mechanism 1, a second sealing mechanism 4 is disposed between the first conveying mechanism 1 and the second conveying mechanism 2, the first conveying mechanism 1 is used for guiding a packaging film to be sealed to move, the first sealing mechanism 3 is used for heat sealing a side edge of the packaging film, the second sealing mechanism 4 is used for heat sealing and cutting off the packaging film with the side edge heat sealed, and the second conveying mechanism 2 is used for guiding the sealed packaging film to move.

Specifically, the packaging machine of the present application packages a product with a strip-shaped packaging film. The packaging film is placed on the first conveying mechanism 1, products are placed on the upper surface of the packaging film, and the first sealing mechanism 3 can fold the two sides of the strip-shaped packaging film, so that the packaging film forms a continuous cylinder shape, and meanwhile, the first sealing mechanism 3 performs longitudinal sealing on the cylinder-shaped packaging film. The packaging film after the longitudinal sealing is conveyed to the second sealing mechanism 4 by the first conveying mechanism 1. At the second seal, a transverse seal may be made and cut, the cut packaging film forming individual packages filled with the contents. The cut individual packages are conveyed by the second conveying mechanism 2.

Specifically, the first conveying mechanism 1 includes a first conveying belt 11, a first conveying roller 12, a first driving device and a first conveying frame 14, the first conveying roller 12 is rotatably connected to the first conveying frame 14, the first conveying roller 12 is connected to a power output end of the first driving device, the first conveying roller 12 is provided with a plurality of first conveying rollers, and the first conveying belt 11 is wound on a plurality of first conveying rollers 12.

In one possible embodiment, the first sealing mechanism 3 includes a first guiding wheel 31, a second guiding wheel 32, a first heat sealing block 33 and a first sealing frame 34, where the first guiding wheel 31 and the second guiding wheel 32 are both rotatably connected to the first sealing frame 34, the first heat sealing block 33 is disposed on the first sealing frame 34, the first guiding wheel 31, the first heat sealing block 33 and the second guiding wheel 32 are sequentially disposed along a horizontal direction and are both disposed with two first guiding wheels 31 and two first guiding wheels 31 are symmetrically disposed to fold the side edges of the packaging film, the two first heat sealing blocks 33 are symmetrically disposed to preheat the side edges of the folded packaging film, and the two second guiding wheels 32 are symmetrically disposed to bond the side edges of the preheated packaging film. In the present embodiment, the first guide wheel 31, the second guide wheel 32, and the first heat seal block 33 are all disposed above the first conveyor belt 11. When the packaging film enters the gap between the two first guide wheels 31 for the first time, the sides of the packaging film (i.e. the long sides of the packaging film) need to be folded manually and placed in the gap between the two first guide wheels 31. The folded sides are then transferred into the gap between the two first heat-seal blocks 33. The first heat-seal block 33 can generate heat, and preheat the side edges of the bag, so that the side edges of the bag are melted at high temperature and have adhesiveness. The preheated side edges are conveyed into the gap between the two second guide wheels 32, and the two second guide wheels 32 squeeze and cool the side edges, so that the two side edges are bonded, and the longitudinal sealing is completed.

Specifically, the second conveying mechanism 2 includes a second conveying belt 21, a second conveying roller 22, a second driving device and a second conveying frame 24, the second conveying roller 22 is rotatably connected to the second conveying frame 24, the second conveying roller 22 is connected to a power output end of the second driving device, the second conveying roller 22 is provided with a plurality of second conveying belts 21, and the second conveying belt 21 is wound on a plurality of second conveying rollers 22.

In the present application, the first driving device and the second driving device are provided in the power box 5, and the power box 5 outputs power to the conveying roller through the first driving device and the second driving device.

In a possible embodiment, the second conveying frame 24 includes a sliding frame 25 and a fixing frame 26, the sliding frame 25 and the fixing frame 26 are both provided with the second conveying roller 22, the second sealing mechanism 4 is disposed on the sliding frame 25, the sliding frame 25 is slidably connected with the fixing frame 26, the fixing frame 26 is provided with a first driving assembly 27, and the first driving assembly 27 is used for driving the sliding frame 25 to slide in a horizontal direction relative to the fixing frame 26. Since the second sealing mechanism 4 requires a certain time for heat-sealing and cutting the packaging film, the second sealing mechanism 4 needs to maintain the same speed as the second conveyor belt 21 in order to ensure continuity between the processes at the time of packaging, so that heat-sealing and cutting can be performed during movement. In order to realize that the whole length of the second conveyor belt 21 is not changed in the sliding process of the sliding frame 25, two second conveyor rollers 22 are arranged on the sliding frame 25, and the inner surface and the outer surface of the second conveyor belt 21 are respectively wound on the two second conveyor rollers 22. When the carriage 25 moves, the two second conveying rollers 22 are driven to move synchronously, so that the length of the second conveying belt 21 between the two second conveying rollers 22 is not changed, and the whole length of the second conveying belt 21 is not changed when the carriage 25 moves.

In one possible embodiment, the sliding frame 25 includes a first sliding frame 251 and a second sliding frame 252, the second sealing mechanism 4 includes a second driving component 41 and a second heat sealing component 42, the second driving component 41 is disposed on the first sliding frame 251, the second heat sealing component 42 is disposed on the second sliding frame 252, the first sliding frame 251 is slidably connected to the fixing frame 26, the second sliding frame 252 is slidably connected to the first sliding frame 251, the first driving component 27 is used for driving the first sliding frame 251 to drive the second sliding frame 252 to slide in a horizontal direction, and the second driving component 41 is used for driving the second sliding frame 252 to drive the second heat sealing component 42 to slide in a vertical direction. The second heat seal assembly 42 needs to reciprocate and after the completion of the cutting of the previous heat seal station, needs to be restored to the original position for heat sealing and cutting of the next heat seal station.

Specifically, the first driving assembly 27 includes a first driving motor 271 and a first eccentric wheel 272, the first driving motor 271 is disposed on the fixing frame 26, the first eccentric wheel 272 is in transmission connection with the first driving motor 271, the first eccentric wheel 272 is in transmission connection with the first sliding frame 251, and the first driving motor 271 is configured to drive the first eccentric wheel 272 to rotate, so as to drive the first sliding frame 251 to horizontally reciprocate on the fixing frame 26. Due to the eccentricity of the first eccentric 272, the movement trace of the first sliding frame 251 generates periodic reciprocating movement when the first eccentric 272 rotates.

In a possible embodiment, the second heat seal assembly 42 includes an upper heat seal seat 421 and a lower heat seal seat 422, the upper heat seal seat 421 and the lower heat seal seat 422 are both slidably connected to the second sliding frame 252, the second driving assembly 41 includes a second driving motor 411, a second driving shaft 412, an upper eccentric wheel 413 and a lower eccentric wheel 414, the second driving shaft 412 is in transmission connection with the second driving motor 411, the upper eccentric wheel 413 and the lower eccentric wheel 414 are respectively disposed at two ends of the second driving shaft 412, the upper eccentric wheel 413 is in transmission connection with the upper heat seal seat 421, the lower eccentric wheel 414 is in transmission connection with the lower heat seal seat 422, and the second driving motor 411 is used for driving the upper eccentric wheel 413 and the lower eccentric wheel 414 to synchronously rotate, so as to drive the upper heat seal seat 421 and the lower heat seal seat 422 to slide in a vertical direction for opening and closing. In this embodiment, the most distant point of the upper eccentric wheel 413 from the second driving shaft 412 and the most distant point of the lower eccentric wheel 414 from the second driving shaft 412 extend in opposite directions, so that when the second driving motor 411 synchronously drives the upper eccentric wheel 413 and the lower eccentric wheel 414 to rotate, the upper heat seal seat 421 and the lower heat seal seat 422 slide in the vertical direction to perform the opening and closing actions. For example, when the upper eccentric 413 is downward from the furthest point of the second driving shaft 412 and the lower eccentric 414 is upward from the furthest point of the second driving shaft 412, the distance between the upper heat-seal block 421 and the lower heat-seal block 422 is the smallest, and the closed state is formed. When the upper eccentric wheel 413 is upward from the furthest point of the second driving shaft 412 and the lower eccentric wheel 414 is downward from the furthest point of the second driving shaft 412, the distance between the upper heat-seal seat 421 and the lower heat-seal seat 422 is the largest, and the upper heat-seal seat is in an opened state. The second driving motor 411 of the present application employs a double-ended output motor.

In one possible embodiment, the upper heat sealing seat 421 is provided with a telescopic cylinder 423, the power output end of the telescopic cylinder 423 is provided with a cutter 424, and the telescopic cylinder 423 is used for driving the cutter 424 to cut off the sealed packaging film. In this embodiment, the telescopic cylinder 423 drives the cutter 424 to move downward to cut the packaging film.

In a possible embodiment, the upper heat-sealing seat 421 is provided with a pressing device 425, and the pressing device 425 is used for pressing the packaging film during the heat sealing process of the second sealing mechanism 4. Specifically, the pressing device 425 includes a spring 426 provided with the upper heat-seal holder 421 and a pressing pad 427 having a large area. The spring 426 is used to drive the pressing pad 427 downward. The upper heat-sealing seat 421 can drive the pressing pad 427 to press downwards to tightly seal the packaging bag, so that the packaging bag is prevented from shifting in the heat-sealing and cutting processes.

It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

While the application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that the foregoing embodiments may be modified or equivalents may be substituted for some of the features thereof, and that the modifications or substitutions do not depart from the spirit and scope of the embodiments of the application.

Claims (10)

1. The sealing and packaging machine is characterized by comprising a workbench (10), wherein a first conveying mechanism (1) and a second conveying mechanism (2) are sequentially arranged on the workbench (10) along the horizontal direction, a first sealing mechanism (3) is arranged above the first conveying mechanism (1), a second sealing mechanism (4) is arranged between the first conveying mechanism (1) and the second conveying mechanism (2), the first conveying mechanism (1) is used for guiding a packaging film to be sealed to move, the first sealing mechanism (3) is used for heat-sealing the side edge of the packaging film, the second sealing mechanism (4) is used for heat-sealing and cutting off the packaging film with the side edge heat sealed, and the second conveying mechanism (2) is used for guiding the sealed packaging film to move.

2. The sealing and packaging machine according to claim 1, wherein the first conveying mechanism (1) comprises a first conveying belt (11), first conveying rollers (12), a first driving device and a first conveying frame (14), the first conveying rollers (12) are rotatably connected to the first conveying frame (14), the first conveying rollers (12) are connected with the power output ends of the first driving device, the first conveying rollers (12) are provided with a plurality of first conveying rollers (12), and the first conveying belt (11) is wound on the plurality of first conveying rollers (12).

3. The sealing and packaging machine according to claim 1, wherein the first sealing mechanism (3) comprises a first guide wheel (31), a second guide wheel (32), a first heat sealing block (33) and a first sealing frame (34), wherein the first guide wheel (31) and the second guide wheel (32) are both rotatably connected to the first sealing frame (34), the first heat sealing block (31) is arranged on the first sealing frame (34), the first guide wheel (31), the first heat sealing block (33) and the second guide wheel (32) are sequentially arranged along the horizontal direction and are both provided with two, the two first guide wheels (31) are symmetrically arranged to close the side edges of the packaging film, the two first heat sealing blocks (32) are symmetrically arranged to preheat the side edges of the already-closed packaging film, and the two second guide wheels (32) are symmetrically arranged to bond the side edges of the already-closed packaging film.

4. The sealing and packaging machine according to claim 1, wherein the second conveying mechanism (2) comprises a second conveying belt (21), second conveying rollers (22), a second driving device and a second conveying frame (24), the second conveying rollers (22) are rotatably connected to the second conveying frame (24), the second conveying rollers (22) are connected with the power output ends of the second driving device, the second conveying rollers (22) are provided with a plurality of second conveying rollers (22), and the second conveying belt (21) is wound on the plurality of second conveying rollers (22).

5. The sealing and packaging machine according to claim 4, wherein the second conveying frame (24) comprises a sliding frame (25) and a fixing frame (26), the sliding frame (25) and the fixing frame (26) are respectively provided with the second conveying roller (22), the second sealing mechanism (4) is arranged on the sliding frame (25), the sliding frame (25) is in sliding connection with the fixing frame (26), the fixing frame (26) is provided with a first driving component (27), and the first driving component (27) is used for driving the sliding frame (25) to slide horizontally relative to the fixing frame (26).

6. The sealing and packaging machine according to claim 5, wherein the sliding frame (25) comprises a first sliding frame (251) and a second sliding frame (252), the second sealing mechanism (4) comprises a second driving component (41) and a second heat sealing component (42), the second driving component (41) is arranged on the first sliding frame (251), the second heat sealing component (42) is arranged on the second sliding frame (252), the first sliding frame (251) is connected to the fixed frame (26) in a sliding manner, the second sliding frame (252) is connected to the first sliding frame (251) in a sliding manner, the first driving component (27) is used for driving the first sliding frame (251) to drive the second sliding frame (252) to slide in the horizontal direction, and the second driving component (41) is used for driving the second sliding frame (252) to drive the second heat sealing component (42) to slide in the vertical direction.

7. The sealing and packaging machine according to claim 6, wherein the first driving assembly (27) comprises a first driving motor (271) and a first eccentric wheel (272), the first driving motor (271) is arranged on the fixing frame (26), the first eccentric wheel (272) is in transmission connection with the first driving motor (271), the first eccentric wheel (272) is in transmission connection with the first sliding frame (251), and the first driving motor (271) is used for driving the first eccentric wheel (272) to rotate so as to drive the first sliding frame (251) to horizontally slide on the fixing frame (26).

8. The sealing and packaging machine according to claim 6, wherein the second heat sealing assembly (42) comprises an upper heat sealing seat (421) and a lower heat sealing seat (422), the upper heat sealing seat (421) and the lower heat sealing seat (422) are both slidingly connected to the second sliding frame (252), the second driving assembly (41) comprises a second driving motor (411), a second driving shaft (412), an upper eccentric wheel (413) and a lower eccentric wheel (414), the second driving shaft (412) is in transmission connection with the second driving motor (411), the upper eccentric wheel (413) and the lower eccentric wheel (414) are respectively arranged at two ends of the second driving shaft (412), the upper eccentric wheel (413) is in transmission connection with the upper heat sealing seat (421), the lower eccentric wheel (414) is in transmission connection with the lower heat sealing seat (422), and the second driving motor (411) is used for driving the upper eccentric wheel (413) and the lower eccentric wheel (414) to synchronously rotate so as to drive the upper eccentric wheel (413) and the lower eccentric wheel (414) to vertically open and close the upper heat sealing seat (421) in a sliding direction.

9. The sealing and packaging machine according to claim 8, wherein the upper heat sealing seat (421) is provided with a telescopic cylinder (423), a power output end of the telescopic cylinder (423) is provided with a cutter (424), and the telescopic cylinder (423) is used for driving the cutter (424) to cut off the packaging film with the sealed end.

10. The sealing and packaging machine as claimed in claim 9, wherein the upper heat-sealing seat (421) is provided with a pressing device (425), and the pressing device (425) is used for pressing the packaging film during the process of cutting the packaging film by the cutter (424).