An integrated device for film and tape removal

Abstract

The present invention relates to the field of film stripping and tape removal equipment, and discloses an integrated film stripping and tape removal equipment, which is provided with a crushing mechanism, a mechanical grabbing arm, a film stripper, and a first conveyor belt. The crushing mechanism and the film stripper are respectively arranged on the left and right sides of the mechanical grabbing arm, and the first conveyor belt is arranged on the side of the mechanical grabbing arm to move the surface film stripped at the film stripper toward the mechanical grabbing arm. In the present invention, the rotation speed of the second motor in the second conveyor belt is slower than the rotation speed of the second motor in the second conveyor belt. When the first motor drives the second conveyor belt to swing toward the second conveyor belt, the spikes on the outside of the transmission belt will penetrate into the disassembled surface film, which not only increases the physical force on the surface film, but also ensures that the surface film can be more fully unfolded and torn during the extrusion process, thereby improving the extrusion effect. The design of the spikes also plays a role in fixing the surface film to prevent it from slipping or curling during the extrusion process, thereby ensuring the continuity and stability of the processing.

Description

Technical Field

[0001] The invention relates to the field of film stripping and tape removal equipment, in particular to integrated film stripping and tape removal equipment. Background Art

[0002] As a lightweight, well-sealed, easy-to-open and carry packaging form, cans have been widely used in the food and beverage industry. With the continuous growth of market demand, the production line efficiency and packaging quality of cans have become the focus of attention of manufacturers. Automation and intelligent trends: With the rapid development of automation and intelligent technologies, manufacturers have put forward higher requirements for the automation and intelligence levels of production line equipment. The integrated film and tape removal equipment conforms to this trend, aiming to improve production efficiency and packaging quality, reduce labor costs and labor intensity, and the film and tape removal equipment in the prior art collects the surface film after cutting it and then cuts and crushes it separately, which is too inconvenient. In addition, the surface film is mostly made of plastic, which has strong softness and resilience. Some surface films with larger surface areas cannot be effectively squeezed into the crushing equipment when they are curled into a ball. Therefore, a device that can automatically transmit the cut surface film and perform corresponding treatment on the surface film is needed. Summary of the invention

[0003] The present invention provides an integrated film and tape stripping device, which overcomes the shortcomings described in the background technology.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] An integrated film and tape stripping device is provided with a crushing mechanism, a mechanical grabbing arm, a film stripping machine, and a first conveyor belt. The crushing mechanism and the film stripping machine are respectively arranged on the left and right sides of the mechanical grabbing arm, and the first conveyor belt is arranged on the side of the mechanical grabbing arm to move the surface film stripped by the film stripping machine toward the mechanical grabbing arm, and the surface film is grabbed to the crushing mechanism by the mechanical grabbing arm.

[0006] The crushing mechanism includes a crusher and a transmission pipeline. The transmission pipeline is connected to the crusher through an air compressor arranged at the end, so that the surface film at the end of the transmission pipeline away from the air compressor is sucked into the crusher for crushing through the negative pressure of the air compressor in the transmission pipeline.

[0007] An extrusion mechanism is provided at one end of the transmission pipeline away from the air compressor, and the extrusion mechanism includes a first motor, a second conveyor belt, and a third conveyor belt. The second conveyor belt and the third conveyor belt are respectively provided at the front and rear sides of the transmission pipeline port, and the second conveyor belt and the third conveyor belt each include a transmission roller, a connecting plate, a transmission belt, and a second motor. The transmission roller is rotatably installed on the left and right sides of the connecting plate, and the transmission belt is wrapped around the two transmission rollers, and one of the transmission rollers is driven to rotate by the second motor;

[0008] The connecting plate in the third conveyor belt is fixed to the inner side of the transmission pipe, and the connecting plate in the second conveyor belt is fixed to the output shaft of the first motor that penetrates into the transmission pipe. An opening is formed between the second conveyor belt and the third conveyor belt for the transmission pipe to absorb the disassembled surface film. When in use, the output shaft of the first motor is driven to drive the second conveyor belt to swing and adjust the port size of the opening.

[0009] The outer surface of the transmission belt is evenly arranged with spikes, and when the first motor drives the second conveyor belt to swing toward the third conveyor belt, the spikes pierce into the disassembled surface film;

[0010] The length of the connecting plate in the second conveyor belt is longer than that in the third conveyor belt, and the rotation speed of the second motor in the second conveyor belt is slower than that of the second motor in the third conveyor belt.

[0011] A preferred technical solution, the extrusion mechanism also includes a cutting device, the cutting device includes a driving cylinder, a movable frame, and an extrusion plate, the movable frame is movably installed in the transmission pipeline, there are gaps between the upper and lower ends of the movable frame and the transmission pipeline, and the extrusion plate is installed in the movable frame, the driving cylinder is arranged on the surface of the transmission pipeline, and the output shaft of the driving cylinder passes through the transmission pipeline and the movable frame in sequence and is connected to the extrusion plate;

[0012] A spring is arranged between the extrusion plate and the movable frame, and the two ends of the spring are respectively connected to the movable frame and the extrusion plate. When the output shaft of the driving cylinder extends outward, the extrusion plate is moved downward and the movable frame is pushed downward by the spring. When the output shaft of the driving cylinder contracts, the movable frame is driven to move upward so that the lower end of the movable frame does not collide with the transmission pipeline.

[0013] A preferred technical solution is that a cutting frame is provided at the lower end of the movable frame, and the cutting frame is sleeved outside the extrusion plate. The cutting frame is a U-shaped structure. There is a channel one between the cutting frame and the extrusion plate for the disassembled surface film to pass through. When the cutting frame moves upward, a channel two is formed between the lower end surface of the cutting frame and the transmission pipeline for the disassembled surface film to pass through.

[0014] A preferred technical solution is that a baffle penetrating the surface of the transmission pipe is arranged at the upper end of the movable frame, the baffles are arranged symmetrically, the two baffles block the gap between the movable frame and the transmission pipe, and a gap is formed between the two baffles for the disassembled surface membrane to pass through.

[0015] A preferred technical solution is that a plurality of anti-slip strips are arranged at equal intervals on the lower end surface of the extrusion plate, and a cutting groove is provided at the corresponding position of the lower end surface of the extrusion plate and the cutting frame. When the extrusion plate moves downward, the cutting frame is embedded in the cutting groove.

[0016] Compared with the prior art, this technical solution has the following advantages:

[0017] In the present invention, the speed of the second motor in the second conveyor belt is slower than that of the second motor in the second conveyor belt. When the first motor drives the second conveyor belt to swing toward the second conveyor belt, the spikes on the outer side of the transmission belt will penetrate into the disassembled surface film. This not only increases the physical force on the surface film, but also ensures that the surface film can be more fully unfolded and torn during the extrusion process, thereby improving the extrusion effect. The design of the spikes also plays a role in fixing the surface film, preventing it from slipping or curling during the extrusion process, and ensuring the continuity and stability of the treatment.

[0018] The speed of the second motor in the first conveyor belt is slower than that of the second motor in the second conveyor belt. This design allows the two conveyor belts to form a speed difference when squeezing the surface film. Differential extrusion helps to distribute the extrusion force more evenly, avoiding incomplete rupture of the surface film due to excessive pressure at a certain point. By adjusting the speed difference between the two conveyor belts, fine control of the surface film processing effect can be achieved. For example, a larger speed difference can produce a stronger tearing effect, while a smaller speed difference is more suitable for gentle squeezing and unfolding of the surface film. The design of different speeds enhances the adaptability of the equipment, enabling it to process surface films of different materials, thicknesses and sizes. By adjusting the speed difference, the equipment's processing effect on different types of surface films can be optimized to meet diverse production needs.

[0019] In the present invention, a baffle penetrating the surface of the transmission pipeline is arranged at the upper end of the movable frame, and the baffles are arranged symmetrically. The two baffles block the gap between the movable frame and the transmission pipeline, and a gap is formed between the two baffles for the disassembled surface membrane to pass through. The existence of the gap provides a convenient passage for the small-volume surface membrane. Since the gap is smaller than the gap between the entire movable frame and the transmission pipeline, it can allow the small-volume surface membrane to pass smoothly without being stuck in the gap or being unnecessarily obstructed. At the same time, the gap also plays a role in screening large-volume surface membranes. When a large-volume surface membrane tries to pass through the gap, due to its large size , will be blocked by the gap and cannot pass smoothly. In this way, the large-volume surface film will be retained above the gap between the movable frame and the transmission pipeline, waiting for further cutting or processing. Through this design, effective classification and processing of surface films of different volumes can be achieved. Small-volume surface films can quickly pass through the gap and enter the subsequent processing flow, while large-volume surface films will be blocked above, which is convenient for secondary cutting or other processing measures. In addition, the notch design also helps to improve the stability and continuity of the entire extrusion and cutting process. It avoids blockage or stagnation caused by excessive surface film volume and ensures the smooth progress of the processing flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1This is an overall diagram of the present invention.

[0022] Figure 2 It is a schematic front view of the crushing mechanism 1.

[0023] Figure 3 Schematic diagram of the swinging process of the second conveyor belt.

[0024] Figure 4 It is a schematic diagram of the structures of the second conveyor belt and the third conveyor belt.

[0025] Figure 5 Intent for transmission pipe and cutting device.

[0026] Figure 6 for Figure 5 Side view of.

[0027] Figure 7 It is a schematic diagram of the structure in which the cutting frame abuts against the lower end of the inner side of the transmission pipeline.

[0028] Figure 8 It is a schematic diagram of the structure when the cutting frame is lifted.

[0029] Fig. 9 for Figure 7 A three-dimensional diagram from another perspective.

[0030] Fig.10 It is a schematic diagram of the structure of the extrusion plate pressing down.

[0031] In the figure: crushing mechanism 1, mechanical grabbing arm 2, film disassembling machine 3, first conveyor belt 4;

[0032] Crusher 11, transmission pipeline 12, air compressor 121, extrusion mechanism 13, cutting device 131, first motor 132, second conveyor belt 133, third conveyor belt 134;

[0033] Transmission roller 100, connection plate 101, transmission belt 102, second motor 103;

[0034] Driving cylinder 311 , movable frame 312 , cutting frame 3121 , baffle 3122 , extrusion plate 313 , cutting groove 3131 , anti-slip strip 3132 , spring 314 . DETAILED DESCRIPTION

[0035] like Figures 1 to 10As shown, the present invention proposes an integrated film stripping and belt removal device, which is provided with a crushing mechanism 1, a mechanical grabbing arm 2, a film stripper 3, and a first conveyor belt 4. The crushing mechanism 1 and the film stripper 3 are respectively arranged on the left and right sides of the mechanical grabbing arm 2, and the first conveyor belt 4 is arranged on the side of the mechanical grabbing arm 2, so as to move the surface film removed at the film stripper 3 toward the mechanical grabbing arm 2, and grab it to the crushing mechanism 1 through the mechanical grabbing arm 2. The crushing mechanism 1 includes a crusher 11 and a transmission pipeline 12. The transmission pipeline 12 is connected to the crusher 11 through an air compressor 121 arranged at the end, so that the surface film in the end of the transmission pipeline 12 away from the air compressor 121 is sucked into the crusher 11 for crushing through the negative pressure of the air compressor 121 in the transmission pipeline 12;

[0036] First, the cooperation between the film remover 3 and the first conveyor belt 4 ensures that the surface film can be quickly and accurately separated from the package and conveyed to the next processing stage. Then, the introduction of the mechanical grabbing arm 2 realizes the precise grabbing and positioning of the surface film, laying a solid foundation for subsequent processing. The most critical thing is that the innovative design of the extrusion mechanism 13, through a specific swinging method, instantly flattens and tears the surface film sent by the mechanical grabbing arm. This step greatly reduces the volume and resilience of the surface film, providing great convenience for the subsequent work of the crusher 11;

[0037] Compared with the traditional equipment that requires additional cutting and crushing steps, the integrated design of the present invention not only greatly shortens the processing time, but also effectively avoids the problem of clogging of the surface film during the processing process, ensuring the smooth and efficient operation of the entire production line, and the extrusion mechanism 13 effectively destroys the internal structure of the surface film through precise flattening and tearing actions, making it easier to crush. Subsequently, the surface film is sucked into the crusher 11 through the transmission pipeline 12 for further crushing. This process not only improves the crushing efficiency, but also ensures the uniformity of the crushed product, providing convenience for subsequent recycling. At the same time, since the surface film is fully unfolded during the processing process, the curling phenomenon common in traditional equipment is avoided, thereby significantly reducing the risk of equipment blockage and reducing maintenance costs. In addition, the fully automated processing process reduces manual intervention, improves the safety and hygiene level of the production line, and saves a lot of labor costs for the company.

[0038] An extrusion mechanism 13 is provided at one end of the transmission pipeline 12 away from the air compressor 121. The extrusion mechanism 13 includes a first motor 132, a second conveyor belt 133, and a third conveyor belt 134. The second conveyor belt 133 and the third conveyor belt 134 are respectively arranged at the front and rear sides of the end of the transmission pipeline 12. The second conveyor belt 133 and the third conveyor belt 134 both include a transmission roller 100, a connecting plate 101, a transmission belt 102, and a second motor 103. The transmission roller 100 is rotatably installed on the left and right sides of the connecting plate 101, and the transmission belt 102 is wrapped around the two transmission rollers 100, and one of the transmission rollers 100 is driven to rotate by the second motor 103.

[0039] The connecting plate 101 in the third conveyor belt 134 is fixed to the inner side of the transmission pipe 12, and the connecting plate 101 in the second conveyor belt 133 is fixed to the output shaft of the first motor 132 which penetrates into the transmission pipe 12. An opening is formed between the second conveyor belt 133 and the third conveyor belt 134 for the transmission pipe 12 to absorb the disassembled surface film. When in use, the output shaft of the first motor 132 is driven to drive the second conveyor belt 133 to swing, and the port size of the opening is adjusted;

[0040] Among them, spikes 1021 are evenly arranged on the outer surface of the transmission belt 102. When the first motor 132 drives the second conveyor belt 133 to swing toward the third conveyor belt 134, the spikes 1021 penetrate into the disassembled surface film. The length of the connecting plate 101 in the second conveyor belt 133 is longer than the length of the connecting plate 101 in the third conveyor belt 134, and the rotation speed of the second motor 103 in the second conveyor belt 133 is slower than the rotation speed of the second motor 103 in the third conveyor belt 134. When the first motor 132 drives the second conveyor belt 133 to swing toward the third conveyor belt 134, the spikes 1021 on the outer side of the transmission belt 102 penetrate into the disassembled surface film. This not only increases the physical force on the surface film, but also ensures that the surface film can be more fully unfolded and torn during the extrusion process, thereby improving the extrusion effect. The design of the spikes 1021 also plays a role in fixing the surface film to prevent it from slipping or curling during the extrusion process, ensuring the continuity and stability of the processing.

[0041] The rotation speed of the second motor 103 in the second conveyor belt 133 is slower than that of the second motor 103 in the third conveyor belt 134. This design allows the two conveyor belts to form a speed difference when squeezing the surface film. The differential extrusion helps to distribute the extrusion force more evenly, avoiding the surface film from being subjected to excessive pressure at a certain point and incomplete rupture. By adjusting the speed difference between the two conveyor belts, the surface film processing effect can be finely controlled. For example, a larger speed difference can produce a stronger tearing effect, while a smaller speed difference is more suitable for gentle squeezing and unfolding of the surface film. The design of different speeds enhances the adaptability of the equipment, enabling it to process surface films of different materials, thicknesses and sizes. By adjusting the speed difference, the equipment's processing effect on different types of surface films can be optimized to meet diverse production needs.

[0042] A preferred technical solution, the extrusion mechanism 13 also includes a cutting device 131, the cutting device 131 includes a driving cylinder 311, a movable frame 312, and an extrusion plate 313, the movable frame 312 is movably installed in the transmission pipe 12, there are gaps between the upper and lower ends of the movable frame 312 and the transmission pipe 12, and the extrusion plate 313 is installed in the movable frame 312, the driving cylinder 311 is arranged on the surface of the transmission pipe 12, and the output shaft of the driving cylinder 311 passes through the transmission pipe 12 and the movable frame 312 in sequence and is connected to the extrusion plate 313;

[0043] A spring 314 is provided between the extrusion plate 313 and the movable frame 312, and the two ends of the spring 314 are respectively connected to the movable frame 312 and the extrusion plate 313. When the output shaft of the driving cylinder 311 extends outward, the extrusion plate 313 is moved downward and the movable frame 312 is pushed downward by the spring 314. When the output shaft of the driving cylinder 311 contracts, the movable frame 312 is driven to move upward, so that the lower end of the movable frame 312 does not abut against the transmission pipe 12.

[0044] Furthermore, a cutting frame 3121 is provided at the lower end of the movable frame 312, and the cutting frame 3121 is sleeved outside the extrusion plate 313. The cutting frame 3121 is a U-shaped structure. There is a channel 1 between the cutting frame 3121 and the extrusion plate 313 for the disassembled surface film to pass through, and when the cutting frame 3121 moves upward, a channel 2 for the disassembled surface film to pass through is formed between the lower end surface of the cutting frame 3121 and the transmission pipe 12. When the movable frame 312 moves downward under the action of the driving cylinder 311, the extrusion plate 313 moves downward accordingly, but because the cutting frame 3121 is sleeved outside the extrusion plate 313 and is a U-shaped structure, a narrow channel 1 is formed between them. This channel 1 allows the disassembled surface film to pass smoothly during the cutting process, while ensuring the accuracy of the cutting. The U-shaped design of the cutting frame 3121 helps to concentrate the cutting force and ensure that the surface film can be cut off cleanly.

[0045] When the output shaft of the driving cylinder 311 contracts, the movable frame 312 and the cutting frame 3121 at its lower end will move upward due to the elastic force of the spring 314. In this process, a new channel 2 is formed between the lower end surface of the cutting frame 3121 and the transmission pipe 12. The design of this channel 2 cleverly utilizes the movement of the cutting frame 3121 to provide a smooth passage path for the cut surface film.

[0046] Furthermore, a baffle 3122 penetrating the surface of the transmission pipe 12 is provided at the upper end of the movable frame 312, and the baffles 3122 are symmetrically arranged, and the two baffles 3122 block the gap between the movable frame 312 and the transmission pipe 12, and a gap is formed between the two baffles 3122 for the disassembled surface film to pass through;

[0047] The existence of the notch provides a convenient passage for small-volume membranes. Since the notch is smaller than the gap between the entire movable frame and the transmission pipeline, it can allow small-volume membranes to pass smoothly without being stuck in the gap or being unnecessarily obstructed. At the same time, the notch also plays a role in screening large-volume membranes. When a large-volume membrane tries to pass through the notch, it will be blocked by the notch due to its large size and cannot pass through smoothly. In this way, the large-volume membrane will be retained above the gap between the movable frame and the transmission pipeline, waiting for further cutting or processing. Through this design, effective classification and processing of membranes of different volumes can be achieved. Small-volume membranes can quickly pass through the notch and enter the subsequent processing flow, while large-volume membranes will be blocked above, which is convenient for secondary cutting or other processing measures. In addition, the notch design also helps to improve the stability and continuity of the entire extrusion and cutting process. It avoids blockage or stagnation caused by excessive membrane volume and ensures the smooth progress of the processing flow.

[0048] Furthermore, a plurality of anti-slip strips 3132 are arranged equidistantly on the lower end surface of the extrusion plate 313 , and a cutting groove 3131 is provided at the corresponding position between the lower end surface of the extrusion plate 313 and the cutting frame 3121 . When the extrusion plate 313 moves downward, the cutting frame 3121 is embedded in the cutting groove 3131 .

[0049] The above are only preferred embodiments of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. An integrated film stripping and tape removal device, comprising a crushing mechanism (1), a mechanical grabbing arm (2), a film stripping machine (3), and a first conveyor belt (4), wherein the crushing mechanism (1) and the film stripping machine (3) are respectively arranged on the left and right sides of the mechanical grabbing arm (2), and the first conveyor belt (4) is arranged on the side of the mechanical grabbing arm (2) to move the surface film removed from the film stripping machine (3) toward the mechanical grabbing arm (2) and grab it to the crushing mechanism (1) through the mechanical grabbing arm (2), characterized in that ； The pulverizing mechanism (1) comprises a pulverizer (11) and a transmission pipeline (12); the transmission pipeline (12) is connected to the pulverizer (11) via an air compressor (121) arranged at the end thereof, so that the surface film at the end of the transmission pipeline (12) away from the air compressor (121) is sucked into the pulverizer (11) for pulverization by means of the negative pressure generated by the air compressor (121) in the transmission pipeline (12); An extrusion mechanism (13) is provided at an end of the transmission pipeline (12) away from the air compressor (121), the extrusion mechanism (13) comprising a first motor (132), a second conveyor belt (133), and a third conveyor belt (134), the second conveyor belt (133) and the third conveyor belt (134) being respectively arranged at the front and rear sides of the end of the transmission pipeline (12), the second conveyor belt (133) and the third conveyor belt (134) both comprising a transmission roller (100), a connecting plate (101), a transmission belt (102), and a second motor (103), the transmission roller (100) being rotatably mounted on the left and right sides of the connecting plate (101), and the transmission belt (102) being wrapped around the two transmission rollers (100), and one of the transmission rollers (100) being driven to rotate by the second motor (103); The connecting plate (101) in the third conveyor belt (134) is fixed to the inner side of the transmission pipe (12), and the connecting plate (101) in the second conveyor belt (133) is fixed to the output shaft of the first motor (132) penetrating into the transmission pipe (12). An opening is formed between the second conveyor belt (133) and the third conveyor belt (134) for the transmission pipe (12) to absorb the disassembled surface film. When in use, the second conveyor belt (133) is driven to swing by the output shaft of the first motor (132) to adjust the port size of the opening; The outer surface of the transmission belt (102) is evenly arranged with spikes (1021), and when the first motor (132) drives the second conveyor belt (133) to swing toward the third conveyor belt (134), the spikes (1021) pierce into the disassembled surface membrane; The length of the connecting plate (101) in the second conveyor belt (133) is longer than the length of the connecting plate (101) in the third conveyor belt (134), and the rotation speed of the second motor (103) in the second conveyor belt (133) is slower than the rotation speed of the second motor (103) in the third conveyor belt (134).

2. The integrated film and tape removal device according to claim 1, characterized in that: The extrusion mechanism (13) further comprises a cutting device (131), the cutting device (131) comprising a driving cylinder (311), a movable frame (312), and an extrusion plate (313), the movable frame (312) being movably mounted in the transmission pipe (12), a gap being present between the upper and lower ends of the movable frame (312) and the transmission pipe (12), the extrusion plate (313) being mounted in the movable frame (312), the driving cylinder (311) being arranged on the surface of the transmission pipe (12), and the output shaft of the driving cylinder (311) passing through the transmission pipe (12) and the movable frame (312) in sequence and then connected to the extrusion plate (313); A spring (314) is provided between the extrusion plate (313) and the movable frame (312), and two ends of the spring (314) are respectively connected to the movable frame (312) and the extrusion plate (313). When the output shaft of the driving cylinder (311) extends outward, the extrusion plate (313) is moved downward and the movable frame (312) is pushed downward by the spring (314). When the output shaft of the driving cylinder (311) contracts, the movable frame (312) is driven to move upward, so that the lower end of the movable frame (312) does not abut against the transmission pipe (12).

3. The integrated film and tape removal device according to claim 2, characterized in that: A cutting frame (3121) is provided at the lower end of the movable frame (312). The cutting frame (3121) is sleeved outside the extrusion plate (313). The cutting frame (3121) is a U-shaped structure. A channel 1 for the disassembled surface film to pass through is provided between the cutting frame (3121) and the extrusion plate (313). When the cutting frame (3121) moves upward, a channel 2 for the disassembled surface film to pass through is formed between the lower end surface of the cutting frame (3121) and the transmission pipe (12).

4. The integrated film and tape removal device according to claim 3, characterized in that: The upper end of the movable frame (312) is provided with a baffle (3122) penetrating the surface of the transmission pipe (12); the baffles (3122) are symmetrically arranged; the two baffles (3122) block the gap between the movable frame (312) and the transmission pipe (12); and a gap is formed between the two baffles (3122) for the disassembled surface film to pass through.

5. The integrated film and tape removal device according to claim 4, characterized in that: The lower end surface of the extrusion plate (313) is provided with a plurality of anti-slip strips (3132) arranged at equal intervals, and a cutting groove (3131) is provided at a position corresponding to the lower end surface of the extrusion plate (313) and the cutting frame (3121); when the extrusion plate (313) moves downward, the cutting frame (3121) is embedded in the cutting groove (3131).

Images