Paperless automatic feeding punching machine

Abstract

The paperless automatic feeding punching machine comprises a base, a punching assembly, a feeding assembly, a first pressing roller, a discharging assembly and a second pressing roller. The punching assembly is arranged on the base and used for punching a material to be punched. The feeding assembly is arranged on one side of the punching assembly and comprises a first conveying belt used for conveying materials to the punching assembly. The first pressing roller is rotationally arranged at the end, close to the base, of the surface of the first conveying belt, and a first gap is formed between the first pressing roller and the surface of the first conveying belt so as to be pressed on the surface of materials. The discharging assembly is arranged on the other side of the punching assembly, and the discharging assembly comprises a second conveying belt for conveying the punched materials; the second pressing roller is rotationally arranged at the end, close to the base, of the surface of the second conveying belt, and a second gap is formed between the second pressing roller and the surface of the second conveying belt so as to be pressed on the surface of materials. According to the paperless automatic feeding punching machine, paper tapes are not needed, the die loss is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of automated production, and particularly relates to a paperless automatic feeding punching machine. Background Art

[0002] A punching machine is used to punch holes in the surface of materials to meet different production requirements. Taking the automotive seat manufacturing field as an example, the refined punching process for genuine leather or synthetic leather materials is a key technical link to improve the breathability, aesthetics, and functionality of seats. Traditional punching equipment generally adopts a working mode of a stamping die combined with a conveying mechanism, and its technical core lies in forming a regular hole array on the surface of the leather cover through precise positioning. However, in the prior art, to ensure the stability of leather materials during high-speed stamping, a solution using a paper carrier as a transmission medium is generally adopted - that is, laying high-strength paper at the bottom of the leather and using the friction between the paper and the roller to achieve the positioning and conveying of the leather cover. Although this method can effectively prevent scratches and displacement offsets on the leather surface, it exposes significant technical defects: First, the debris and fiber residues generated by the paper during repeated stamping will accelerate the wear of the cutting edge of the stamping die. Especially when processing high-density hole patterns, the friction coefficient between the paper debris and the die increases sharply, resulting in problems such as peeling of the die surface coating and dulling of the cutting edge. According to statistics, such wear can shorten the service life of the die by 100% - 150%; Second, the continuous consumption of paper media not only increases the raw material cost, but also reduces the overall equipment efficiency by about 25% due to frequent downtime for paper replacement. In addition, the mixture of paper scraps and leather needs to be treated as solid waste. Currently, only the leather can be recycled, and the leather fibers are extracted and reused. However, the contact surface between the paper and the leather is prone to an electrostatic adsorption effect, making it difficult to remove the waste after punching and affecting the yield rate of subsequent processes. Therefore, developing a new type of punching equipment that does not rely on paper carriers, can effectively reduce die losses, and is compatible with various leather materials has become a technical bottleneck that the industry urgently needs to break through.

[0003] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0004] The object of the present invention is to provide a paperless automatic feeding punching machine, which does not require the use of paper tape, reduces die losses, and lowers production costs.

[0005] To achieve the above object, the technical solution provided by a specific embodiment of the present invention is as follows: A paperless automatic feeding and punching machine, which includes a base, a punching component, a feeding component, a first pressing roller, a discharging component, and a second pressing roller. The punching component is arranged on the base to punch the material to be punched; the feeding component is arranged on one side of the punching component, and the feeding component includes a first conveyor belt to convey the material to the punching component; the first pressing roller is rotatably arranged at one end of the surface of the first conveyor belt close to the base and has a first gap with the surface of the first conveyor belt, and this first gap is configured to be smaller than the thickness of the material to be punched so that the first pressing roller presses on the surface of the material; the discharging component is arranged on the other side of the punching component, and the discharging component includes a second conveyor belt to convey the punched material; the second pressing roller is rotatably arranged at one end of the surface of the second conveyor belt close to the base and has a second gap with the surface of the second conveyor belt, and this second gap is configured to be smaller than the thickness of the material to be punched so that the second pressing roller presses on the surface of the material.

[0006] In one or more embodiments of the present invention, both the feeding component and the discharging component further include a carrier frame, a reinforcing plate, and two driving rollers. The carrier frame is connected to the base; the reinforcing plate is arranged on the carrier frame to support the first conveyor belt and the second conveyor belt; the two driving rollers are respectively arranged at both ends of the reinforcing plate, and the first conveyor belt and the second conveyor belt are respectively sleeved on the two driving rollers and the reinforcing plate and are in contact with the reinforcing plate.

[0007] In one or more embodiments of the present invention, the reinforcing plate is rotatably connected to the carrier frame and can be fixed relative to the carrier frame to fold the feeding component.

[0008] In one or more embodiments of the present invention, guide blocks are arranged at both ends of the first pressing roller, guide seats are arranged on both sides of the reinforcing plate, and the guide blocks are slidably arranged in the guide seats to adjust the gap between the first pressing roller and the reinforcing plate.

[0009] In one or more embodiments of the present invention, an elastic member is arranged between the guide block and the guide seat, and the elastic member has an elastic force that makes the first pressing roller approach the reinforcing plate.

[0010] In one or more embodiments of the present invention, an extension part is arranged on one side of the reinforcing plate close to the base. The side of the extension part close to the driving roller is an arc matching the driving roller, and the other side is a plane in contact with the punching component. The upper surface of the extension part is flush with the upper surface of the reinforcing plate.

[0011] In one or more embodiments of the present invention, a mold mounting frame is provided on one side of the base, and the upper surface of the mold mounting frame is flush with the upper surface of the base, so as to push the punching mold from the mold mounting frame to the upper surface of the base.

[0012] In one or more embodiments of the present invention, a waste slot is provided on the upper surface of the base, and the lower pressing plate is placed on the waste slot to collect the waste formed by punching.

[0013] In one or more embodiments of the present invention, a discharge port is provided on the side wall of the base, and the discharge port is connected to the waste slot to discharge the waste to an external waste collection device.

[0014] In one or more embodiments of the present invention, the punching assembly includes a punching mold having an upper pressing plate and a lower pressing plate. A plurality of vertically downward extending punch pins are provided on the upper pressing plate, and the lower pressing plate has a plurality of punching holes. The upper pressing plate can move up and down relative to the lower pressing plate to punch the material passing between the upper pressing plate and the lower pressing plate.

[0015] In one or more embodiments of the present invention, the punching assembly further includes a driving device, which is arranged above the base and connected to the upper pressing plate to drive the upper pressing plate to approach or move away from the lower pressing plate.

[0016] Compared with the prior art, the paperless automatic loading and punching machine of the present invention uses two conveyor belts and the first pressing roller and the second pressing roller cooperating with them to replace the traditional paper tape transportation. The cooperation between the conveyor belt and the pressing roller can ensure that the material does not shift during transportation and punching on the conveyor belt. The first conveyor belt and the first pressing roller send the material into the punching assembly, and the second conveyor belt and the second pressing roller are used to receive and transport the material coming out of the punching assembly. The two cooperate to realize the continuous transportation of the material and replace the traditional paper tape transportation. Since there is no need to transport the material with a paper tape, the wear of the paper tape on the punching mold is reduced, so the service life of the mold is increased by 3 - 4 times. Paperless production also reduces costs and enhances environmental protection. In addition, paperless production eliminates the influence of impurities in the paper on punching, the holes on the material are more uniform, and there will be no uneven protrusions on the back of the holes due to paper deformation, improving the product quality. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is the first three-dimensional view of the paperless automatic feeding and punching machine in an embodiment of the present invention;

[0019] Figure 2 This is the second three-dimensional view of the paperless automatic feeding and punching machine in an embodiment of the present invention;

[0020] Figure 3 This is the partial structural schematic diagram of the paperless automatic feeding and punching machine in an embodiment of the present invention;

[0021] Figure 4 This is the structural schematic diagram of the feeding component / discharging component in an embodiment of the present invention;

[0022] Figure 5 This is the three-dimensional view of the reinforcing plate and the first conveyor belt in an embodiment of the present invention;

[0023] Figure 6 This is the three-dimensional view of the extension part and the driving wheel in an embodiment of the present invention;

[0024] Figure 7 This is the three-dimensional view of the punching component in an embodiment of the present invention;

[0025] Figure 8 This is the three-dimensional view of the feeding component in the paperless automatic feeding and punching machine in an embodiment of the present invention when it is in a folded state.

[0026] Main reference numeral description:

[0027] 1 - Base, 11 - Mold mounting frame, 12 - Waste chute, 13 - Discharge port, 2 - Punching component, 21 - Punching mold, 211 - Upper pressing plate, 212 - Lower pressing plate, 22 - Driving device, 3A - Feeding component, 3B - Discharging component, 31 - First conveyor belt, 32 - Second conveyor belt, 33 - Carrier, 34 - Reinforcing plate, 341 - Extension part, 35 - Driving roller, 4A - First pressing roller, 4B - Second pressing roller, 41 - Guide block, 42 - Guide seat, 43 - Elastic member. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Such as Figure 1-8As shown in the figure, a paperless automatic feeding punching machine in an embodiment of the present invention includes a base 1, a punching assembly 2, a feeding assembly 3A, a first pressing roller 4A, a discharging assembly 3B, and a second pressing roller 4B. The punching assembly 2 is arranged on the base 1 to punch the material to be punched. The feeding assembly 3A is arranged on one side of the punching assembly 2. The feeding assembly 3A includes a first conveyor belt 31 to convey the material to the punching assembly 2. The first pressing roller 4A is rotatably arranged at one end of the surface of the first conveyor belt 31 close to the base 1 and has a first gap with the surface of the first conveyor belt 31. The first gap is configured to be slightly smaller than the thickness of the material, so that when the material passes through the gap, the first pressing roller 4A presses on the surface of the material. The discharging assembly 3B is arranged on the other side of the punching assembly 2. The discharging assembly 3B includes a second conveyor belt 32 to convey the punched material. The second pressing roller 4B is rotatably arranged at one end of the surface of the second conveyor belt 32 close to the base 1 and has a second gap with the surface of the second conveyor belt 32. The second gap is configured to be slightly smaller than the thickness of the material, so that when the material passes through the gap, the second pressing roller 4B presses on the surface of the material.

[0030] The working principle of the paperless automatic feeding punching machine is as follows: The material to be punched (such as a seat leather cover) is placed on the first conveyor belt 31, and then the first conveyor belt 31 works to move the material towards the punching assembly 2. When the material moves under the first pressing roller 4A, the material passes through the gap between the first pressing roller 4A and the first conveyor belt 31. During the forward movement of the material, the first pressing roller 4A contacts the surface of the material and rotates, and cooperates with the first conveyor belt 31 to jointly feed the material into the punching assembly 2. The punching assembly 2 punches the material entering it. During the process of the material entering the punching assembly 2, the first conveyor belt 31 and the first pressing roller 4A jointly feed the material into the punching assembly 2 gradually until at least part of the material enters the second conveyor belt 32. The material is conveyed onto the second conveyor belt 32, and the second conveyor belt 32 and the second pressing roller 4B together gradually convey the punched material out of the punching assembly 2. Finally, the punched material is sent to the subsequent production position by the second conveyor belt 32.

[0031] In the above embodiment, the paperless automatic feeding punching machine of the present invention uses two conveyor belts and the first pressing roller 4A and the second pressing roller 4B cooperating with them to replace the traditional paper tape transportation. The cooperation between the conveyor belt and the pressing roller can ensure that the material does not shift during transportation on the conveyor belt and during punching. The first conveyor belt 31 and the first pressing roller 4A feed the material into the punching assembly 2, and the second conveyor belt 32 and the second pressing roller 4B are used to receive and convey the material coming out of the punching assembly 2. The two cooperate to realize the continuous transportation of the material, replace the traditional paper tape transportation, reduce the wear of the punching die 21, and reduce the cost.

[0032] The detailed structure of the feeding component 3A will be further described below. It should be noted that the setting method of the discharging component 3B can be the same as that of the feeding component 3A. The two are respectively arranged on both sides of the base 1. Therefore, the specific setting method of the discharging component 3B can refer to the setting method of the feeding component 3A in the following text and can be added or deleted according to the actual situation on the structure of the feeding component 3A.

[0033] As Figure 1 and Figure 4 shown, the feeding component 3A further includes a carrier 33, a reinforcing plate 34 and two driving rollers 35. The carrier 33 is connected to the base 1 to carry the relevant components of the feeding component 3A. The reinforcing plate 34 is arranged on the carrier 33 and connected to the carrier 33 through two connecting plates 36 to support the first conveyor belt 31. The reinforcing plate 34 enables the first conveyor belt 31 not to deform during the conveying process, can always be closely attached to the first pressure roller 4A, and enables the material not to deform or warp easily during the punching process. The two driving rollers 35 are respectively arranged at both ends of the reinforcing plate 34. The first conveyor belt 31 is respectively sleeved on the two driving rollers 35 and the reinforcing plate 34 and is attached to the reinforcing plate 34, so that the two driving rollers 35 can drive the first conveyor belt 31 to always move along the surface of the reinforcing plate 34.

[0034] In an embodiment, as Figure 5 and Figure 6 shown, on the side of the reinforcing plate 34 close to the base 1, there is an extension 341. One side of the extension 341 close to the driving roller 35 is an arc matching the driving roller 35, and the other side is a plane fitting the punching component 2. The upper surface of the extension 341 is flush with the upper surface of the reinforcing plate 34. Since the upper surface of the extension 341 is flush with the upper surface of the reinforcing plate 34, the space formed between the reinforcing plate 34 and the punching component 2 due to the curved surface of the driving roller 35 is transitioned by the extension 341, and the material can smoothly enter the punching component 2 without being blocked by this space.

[0035] Further, as Figure 2 and Figure 7 shown, the reinforcing plate 34 is rotatably connected to the carrier 33 and can be fixed relative to the carrier 33. The reinforcing plate 34 is slidably connected to the two connecting plates 36 to move closer to or away from the base 1. For example, the reinforcing plate 34 drives the first conveyor belt 31 and the driving rollers 35 to move away from the base 1 together, and then the connecting plates 36 rotate relative to the carrier 33 to fold the feeding component 3A towards the base 1, so that the punching die 21 can be taken out and put into the base 1. With such a setting, after the punching die 21 is worn, the feeding component 3A can be folded to leave enough operating space for die replacement. Compared with the traditional punching machine that needs to disassemble the overall structure to replace the die, the die replacement method of this paperless automatic feeding punching machine is more simple and efficient, improving the production efficiency.

[0036] When the feeding assembly 3A needs to be folded, the locking member between the reinforcing plate and the carrier 33 is unlocked. Then the reinforcing plate 34 rotates downward, driving the folding of the feeding assembly 3A, so that related operations for mold replacement can be carried out.

[0037] After the mold replacement is completed, the reinforcing plate 34 is rotated upward and abuts against the punching assembly 2, and then the locking member is locked, and the reinforcing plate 34 is fixed relative to the carrier 33.

[0038] Since the thicknesses of different materials are inconsistent, the distances between the first pressing roller 4A and the second pressing roller 4B relative to the first conveyor belt 31 and the second conveyor belt 32 need to be adjusted accordingly to ensure that the position of the material on the first conveyor belt 31 and the second conveyor belt 32 does not shift, and the material can be smoothly fed into the punching assembly 2. At the same time, the first gap and the second gap need to be slightly smaller than the thickness of the material, so that the material can be closely attached to the first pressing roller 4A, the second pressing roller 4B and the conveyor belt to achieve smooth transmission without using paper tape transmission. In an embodiment, guide blocks 41 are provided at both ends of the first pressing roller 4A and the second pressing roller 4B. Guide seats 42 are provided on both sides of the reinforcing plate 34, and the guide blocks 41 are slidably arranged in the guide seats 42 to adjust the gaps between the first pressing roller 4A and the second pressing roller 4B and the reinforcing plate 34, that is, with the first conveyor belt 31 and the second conveyor belt 32.

[0039] Furthermore, an elastic member 43 is provided between the guide block 41 and the guide seat 42. The elastic member 43 has an elastic force that makes the first pressing roller 4A and the second pressing roller 4B approach the reinforcing plate 34. When the distance between the first pressing roller 4A and the second pressing roller 4B relative to the reinforcing plate 34 is adjusted, during the punching process, the elastic member 43 can make the first pressing roller 4A and the second pressing roller 4B closely attached to the material to ensure the smooth passage of the material.

[0040] As described above, the setting mode of the discharging assembly 3B can be exactly the same as that of the feeding assembly 3A. For example, it can also include components such as a carrier, a reinforcing plate, a driving roller, a guide block, a guide seat, and an elastic member.

[0041] It can be understood that the paperless automatic feeding punching machine further includes a control device and related sensors to cooperate with the operation of the punching machine. The control device and sensors can be existing devices in the art and will not be elaborated here.

[0042] The paperless automatic feeding punching machine improves the service life of the punching die 21 in the above manner. However, after the die is used for a period of time, it still needs to be replaced. Considering the relatively large mass of the punching die 21, in one embodiment, a die mounting frame 11 is provided on one side of the base 1, and the upper surface of the die mounting frame 11 is flush with the upper surface of the base 1, so as to push the punching die 21 from the die mounting frame 11 onto the upper surface of the base 1. Preferably, the die mounting frame 11 is provided on the side of the base 1 close to the feeding assembly 3A. When the feeding assembly 3A is folded downwards, the punching die 21 can be taken out along the die mounting frame 11 or pushed onto the surface of the base 1 along the die mounting frame 11. With such a setting, the operator can use the die mounting frame 11 to disassemble or install the punching die 21, saving physical strength and improving the operation safety.

[0043] In one embodiment, as Figure 2 and Figure 7 shown, the punching assembly 2 includes a punching die 21 having an upper pressing plate 211 and a lower pressing plate 212. A plurality of vertically downwardly extending punch needles are provided on the upper pressing plate 211, and the lower pressing plate 212 has a plurality of punching holes. The upper pressing plate 211 can move up and down relative to the lower pressing plate 212 to punch the material passing between the upper pressing plate 211 and the lower pressing plate 212. The punching assembly 2 further includes a driving device 22, which is arranged above the base 1 and connected to the upper pressing plate 211 to drive the upper pressing plate 211 to approach or move away from the lower pressing plate 212. When the material passes between the upper pressing plate 211 and the lower pressing plate 212, the driving device 22 drives the upper pressing plate 211 to impact the lower pressing plate 212, and the punch needles of the upper pressing plate 211 punch the material.

[0044] Furthermore, a waste material groove 12 is formed on the upper surface of the base 1 below the punching assembly 2. The punch needles of the upper pressing plate 211 punch the material, and then the waste material punched off is sent into the waste material groove 12 through the punching holes of the lower pressing plate 212. A discharge port 13 is formed on the side wall of the base 1, and the discharge port 13 is connected to the waste material groove 12 to discharge the waste material to an external waste material collection device. Since this paperless automatic feeding punching machine does not need to use a paper tape to convey the material, the waste material does not contain paper, which is convenient for waste material classification and recycling. After the waste material is recycled, it can be reused, reducing the production cost.

[0045] In summary, for the paperless automatic feeding punching machine of the present invention, two conveyor belts and the first pressure roller 4A and the second pressure roller 4B that cooperate with them replace the traditional paper tape transportation. The cooperation between the conveyor belt and the pressure roller can ensure that the material does not shift during transportation on the conveyor belt and during punching. The first conveyor belt 31 and the first pressure roller 4A send the material into the punching assembly 2, and the second conveyor belt 32 and the second pressure roller 4B are used to receive and transport the material coming out of the punching assembly 2. The two cooperate to achieve continuous transportation of the material, replacing the traditional paper tape transportation. Since there is no need to transport the material with a paper tape, the wear of the paper tape on the punching die 21 is reduced, so that the service life of the die is increased by 3 to 4 times. Paperless production also reduces costs and enhances environmental protection. In addition, paperless production eliminates the influence of impurities in the paper on punching. The holes on the material are more uniform, and there will be no uneven protrusions on the back of the holes due to paper deformation, improving the product quality.

[0046] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0047] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A paperless automatic feeding and punching machine, characterized in that, Comprising: A base; A punching component, arranged on the base to punch the material to be punched; A feeding component, arranged on one side of the punching component, the feeding component includes a first conveyor belt to convey the material to the punching component; A first pressing roller, rotatably arranged at one end of the surface of the first conveyor belt close to the base and having a first gap with the surface of the first conveyor belt, the first gap is configured to be smaller than the thickness of the material to be punched so that the first pressing roller presses on the surface of the material; A discharging component, arranged on the other side of the punching component, the discharging component includes a second conveyor belt to convey the punched material; A second pressing roller, rotatably arranged at one end of the surface of the second conveyor belt close to the base and having a second gap with the surface of the second conveyor belt, the second gap is configured to be smaller than the thickness of the material to be punched so that the second pressing roller presses on the surface of the material.

2. The paperless automatic feeding and punching machine according to claim 1, wherein Both the feeding component and the discharging component further include: A carrier frame, connected to the base; A reinforcing plate, arranged on the carrier frame to support the first conveyor belt and the second conveyor belt; and Two driving rollers, respectively arranged at both ends of the reinforcing plate, the first conveyor belt and the second conveyor belt are respectively sleeved on the two driving rollers and the reinforcing plate and are in contact with the reinforcing plate.

3. The paperless automatic feeding and punching machine according to claim 2, characterized in that, The reinforcing plate is rotatably connected to the carrier frame and can be fixed relative to the carrier frame to fold the feeding component.

4. The paperless automatic loading and punching machine according to claim 2, wherein, Guide blocks are arranged at both ends of the first pressing roller, guide seats are arranged on both sides of the reinforcing plate, and the guide blocks are slidably arranged in the guide seats to adjust the gap between the first pressing roller and the reinforcing plate.

5. The paperless automatic loading and punching machine according to claim 4, wherein, An elastic member is arranged between the guide block and the guide seat, and the elastic member has an elastic force that makes the first pressing roller approach the reinforcing plate.

6. The paperless automatic feeding and punching machine according to claim 2, characterized in that An extension portion is arranged on one side of the reinforcing plate close to the base. The side of the extension portion close to the driving roller is an arc matching the driving roller, and the other side is a plane fitting the punching component. The upper surface of the extension portion is flush with the upper surface of the reinforcing plate.

7. The paperless automatic loading and punching machine according to claim 1, characterized in that, A mold mounting frame is arranged on one side of the base, and the upper surface of the mold mounting frame is flush with the upper surface of the base to push the punching mold from the mold mounting frame to the upper surface of the base.

8. The paperless automatic feeding and punching machine according to claim 1, wherein A waste material groove is formed on the base below the punching component to collect the waste material formed by punching.

9. The paperless automatic loading and punching machine according to claim 8, wherein, A discharge port is formed on the side wall of the base, and the discharge port is connected to the waste material groove to discharge the waste material to an external waste material collection device.

10. The paperless automatic feeding and punching machine according to claim 1, characterized in that, The punching component includes a punching mold having an upper pressing plate and a lower pressing plate. A plurality of vertically downward extending punching needles are arranged on the upper pressing plate, and the lower pressing plate has a plurality of punching holes. The upper pressing plate can move up and down relative to the lower pressing plate to punch the material passing between the upper pressing plate and the lower pressing plate.

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