A punching device for processing plastic cup covers

Abstract

The utility model discloses a punch device is used in plastic cup cover processing, including work table, the four corners of work table bottom all are fixedly connected with stand. The utility model discloses an eight annular uniform arrangement's placing groove is set up at the top of rotary disc, and the intermittent rotation of cooperation work table bottom stepping motor drive rotary disc can realize the feeding, clamping, punching, discharging multi -position synchronous of plastic cup cover, compared with single -position punch device, and the single -time processing cycle is greatly shortened, and the overall production efficiency is promoted, and with the electric push rod of one -to -one correspondence with the placing groove on the rotary disc, the clamping pad of arc -shaped clamping block cooperation placing groove inner wall is pushed to the cup cover and is fixed, can avoid the cup cover in the rotation transfer or punching process and deviate, ensure the punching position accuracy of punch head to cup cover, can also reduce the extrusion damage to the surface of cup cover through the clamping pad, guarantee the appearance quality of cup cover after processing.

Description

Technical Field

[0001] This utility model relates to the field of plastic cup lid processing technology, specifically a punching device for processing plastic cup lids. Background Technology

[0002] In the production and processing of plastic cup lids, punching is one of the key processes to meet the needs of drinking or straw insertion. The performance of the corresponding punching equipment directly affects the production efficiency and quality of the cup lids. With the rapid development of the fast-moving consumer goods industry, the market demand for plastic cup lids continues to grow, while higher requirements are being placed on processing precision, production efficiency, and equipment adaptability. However, existing punching equipment still faces many technical bottlenecks.

[0003] Traditional plastic cup lid punching relies heavily on manual operation. Workers need to hold the cup lid in place before punching, which is not only labor-intensive and has a low degree of automation, but also results in low processing efficiency. Even though some automated punching equipment has been put into use, it still faces several shortcomings: In terms of processing efficiency, most equipment adopts a single-station design, with the processes of loading, positioning, punching, and unloading cup lids performed sequentially, resulting in waiting gaps between processes, making it difficult to meet the high-efficiency requirements of mass production; in terms of positioning accuracy, the clamping mechanisms of existing equipment are mostly designed with fixed spacing, or only limited by simple pressure plates, making it easy for the cup lids to deviate in hole position due to force displacement during the punching process, and the hard clamping parts can easily cause squeezing damage to the surface of the cup lids, affecting the appearance quality of the finished product; in terms of material separation and collection, the waste generated from punching is often mixed with the processed cup lids and piles up, requiring additional manual sorting, which increases labor costs and easily leads to a messy working environment. At the same time, untimely waste collection may also affect the normal operation of the equipment; in terms of structural adaptability, the punching mechanism and conveying mechanism of some equipment are scattered, resulting in low overall space utilization and a lack of standardized external expansion interfaces, making it difficult to flexibly match auxiliary equipment such as feeding and testing according to production needs, thus limiting the scope of application.

[0004] In addition, although some equipment attempts to improve efficiency through multiple punching mechanisms, the problems of complex structure and high cost make it difficult to promote and apply on a large scale in small and medium-sized enterprises.

[0005] Therefore, there is a need to provide a punching device for processing plastic cup lids to solve this problem. Utility Model Content

[0006] To address the problems mentioned in the background art, the present invention aims to provide a punching device for processing plastic cup lids, which has the advantages of efficient continuous operation, stable and precise clamping, orderly material separation and flexible structural adaptation, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a punching device for processing plastic cup lids, comprising a worktable, with columns fixedly connected to the four corners of the bottom of the worktable, a stepper motor fixedly connected to the bottom of the worktable, and a rotating disk fixedly connected to the output shaft of the stepper motor via a coupling. The top of the rotating disk has eight evenly arranged annular placement slots, and the top of the rotating disk has eight evenly arranged annular electric push rods fixedly connected to it, with each of the eight electric push rods corresponding one-to-one with one of the eight placement slots. The output end of each electric push rod extends into the interior of the placement slot and is fixedly connected to an arc-shaped clamping block. Clamping pads are symmetrically fixedly connected to the inner wall of the placement slot about the arc-shaped clamping block. A through-hole is provided at the bottom of the placement slot, and a discharge port is provided at the top of the worktable. The feeding port and the through port are used together. A support column is fixedly connected to the top of the workbench. A support plate is fixedly connected to the top of the support column. An electric push rod is fixedly connected to the top of the support plate. The output end of the electric push rod passes through the support plate and is fixedly connected to a punch head, which is located directly above the feeding port. A discharge trough is opened on the other side of the top of the workbench. A discharge plate is installed on the top of the discharge trough. A support frame is fixedly connected to the top of the discharge plate, and the support frame is located directly above the placement trough on one side. A movable port is opened on the top of the support frame. A lead screw is rotatably connected to the top of the support frame through a bearing. One end of the lead screw is driven by a servo motor. A movable block is threadedly connected to the surface of the lead screw. A push block for discharging plastic cup lids is fixedly connected to the bottom of the movable block.

[0008] As a preferred embodiment of this utility model, a mounting groove is provided at the center of the rotating disk, and a controller is fixedly connected inside the mounting groove. The controller is electrically connected to the electric push rod and the electric push rod respectively.

[0009] As a preferred embodiment of this utility model, the bottom of the placement groove is symmetrically provided with a top outlet, the bottom of the worktable is provided with a sliding opening, and the sliding opening is used in conjunction with the top outlet. The interior of the sliding opening is slidably connected with an ejector column, and the ejector column is used in conjunction with the top outlet. The bottom of the ejector column is fixedly connected with an electric lifting rod.

[0010] As a preferred embodiment of this utility model, the bottom of the workbench is symmetrically and fixedly connected with a limiting plate about the discharge port, and a collection box is slidably connected inside the limiting plate, and the collection box is located below the discharge port.

[0011] As a preferred embodiment of this utility model, the top of the workbench is provided with a balancing groove, and the bottom of the rotating disk is fixedly connected with a balancing ring, and the balancing ring is rotatably connected to the balancing groove.

[0012] As a preferred embodiment of this utility model, mounting plates are symmetrically fixedly connected to both sides of the workbench, and the surface of the mounting plates is provided with mounting holes for mounting peripheral processing equipment.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting eight evenly arranged circular placement slots on the top of the rotating disk, and cooperating with the stepper motor at the bottom of the worktable to drive the rotating disk to rotate intermittently, can realize the simultaneous multi-station loading, clamping, punching, and unloading of plastic cup lids. Compared with single-station punching devices, it significantly shortens the single processing cycle and improves the overall production efficiency. With the help of electric push rods on the rotating disk that correspond one-to-one with the placement slots, the arc-shaped clamping blocks are pushed to cooperate with the clamping pads on the inner wall of the placement slots to fix the cup lids. This can not only prevent the cup lids from shifting during rotation or punching, ensuring the punching head's punching position on the cup lids is accurate, but also reduce the squeezing damage to the surface of the cup lids through the clamping pads, ensuring the appearance quality of the cup lids after processing. The symmetrical structure of the arc-shaped clamping blocks and clamping pads confirms the stable clamping effect.

[0014] 2. This utility model, by opening a through-hole at the bottom of the placement groove and cooperating with the discharge port at the top of the workbench, allows the waste generated from punching to fall directly into the collection structure below, avoiding waste accumulation. At the same time, the discharge mechanism, composed of a discharge plate, a support frame, a lead screw, a moving block, and a push block, can orderly push the processed cup lids to the designated position, achieving efficient separation of waste and finished products, reducing manual sorting, and maintaining a clean working environment. In the overall structure, the punching mechanism composed of support columns and support plates, the rotation mechanism of the rotary disk, and the discharge mechanism of the discharge plate are compactly arranged on the workbench with clear functional divisions. Meanwhile, the columns at the bottom of the workbench ensure the overall stability of the device. In the future, external equipment can be expanded through the mounting plates on both sides of the workbench to adapt to the processing needs of cup lids of different specifications, thereby increasing the applicability of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top-view perspective view of the structure of this utility model; Figure 3 This is a partial cross-sectional perspective view of the structure of this utility model; Figure 4 This is a partial cross-sectional perspective view of the structure of this utility model from another angle.

[0016] In the diagram: 1. Workbench; 2. Stepper motor; 3. Rotary disk; 4. Placement slot; 5. Electric push rod; 6. Arc-shaped clamping block; 7. Clamping pad; 8. Through-hole; 9. Discharge port; 10. Electric push rod; 11. Punching head; 12. Discharge plate; 13. Support frame; 14. Moving port; 15. Lead screw; 16. Moving block; 17. Push block; 18. Controller; 19. Top outlet; 20. Ejector column; 21. Electric lifting rod; 22. Collection box; 23. Balance ring; 24. Mounting plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 4 As shown, this utility model provides a punching device for processing plastic cup lids, including a workbench 1. Columns are fixedly connected to the four corners of the bottom of the workbench 1. A stepper motor 2 is fixedly connected to the bottom of the workbench 1. The output shaft of the stepper motor 2 is fixedly connected to a rotating disk 3 via a coupling. The stepper motor 2 drives the rotating disk 3 to rotate intermittently, rotating 45° each time to switch work positions. Eight evenly arranged circular placement slots 4 are opened on the top of the rotating disk 3. Eight evenly arranged circular electric push rods 5 are fixedly connected to the top of the rotating disk 3, and the eight electric push rods 5 correspond one-to-one with the eight placement slots 4. The output end of the electric push rod 5 extends into the interior of the placement slot 4 and is fixedly connected to an arc-shaped clamping block 6. Clamping pads 7 are symmetrically fixedly connected to the inner wall of the placement slot 4 about the arc-shaped clamping block 6. A through-hole 8 is opened at the bottom of the placement slot 4. A discharge port 9 is opened on the top of the workbench 1, and the discharge port... The port 9 is used in conjunction with the through port 8. A support column is fixedly connected to the top of the workbench 1. A support plate is fixedly connected to the top of the support column. An electric push rod 10 is fixedly connected to the top of the support plate. The output end of the electric push rod 10 passes through the support plate and is fixedly connected to a punch head 11. The punch head 11 is located directly above the discharge port 9. A discharge trough is opened on the other side of the top of the workbench 1. A discharge plate 12 is installed on the top of the discharge trough. A support frame 13 is fixedly connected to the top of the discharge plate 12. The support frame 13 is located directly above the side placement trough 4 and corresponds to the position of the cup lid after it is ejected. A moving port 14 is opened on the top of the support frame 13. A lead screw 15 is rotatably connected to the top of the support frame 13 through a bearing. One end of the lead screw 15 is driven by a servo motor. A moving block 16 is threadedly connected to the surface of the lead screw 15. A push block 17 for discharging plastic cup lids is fixedly connected to the bottom of the moving block 16.

[0019] refer to Figure 1 and Figure 3 A mounting groove is provided at the center of the rotating disk 3. A controller 18 is fixedly connected inside the mounting groove, and the controller 18 is electrically connected to the electric push rod 5 and the electric push rod 10 respectively.

[0020] As a technical optimization of this utility model, by setting up a controller 18, the clamping force of the electric push rod 5 and the punching speed and stroke of the electric push rod 10 can be automatically controlled. At the same time, it can be coordinated with the running rhythm of the stepper motor 2 and the servo motor to realize the coordinated work of various components of the device, thereby improving the automation level and processing efficiency of the device.

[0021] refer to Figure 3 The bottom of the placement trough 4 is symmetrically provided with a top outlet 19. The bottom of the worktable 1 is provided with a sliding opening, which is used in conjunction with the top outlet 19. The inside of the sliding opening is slidably connected with an ejector column 20, which is used in conjunction with the top outlet 19. The bottom of the ejector column 20 is fixedly connected with an electric lifting rod 21.

[0022] As a technical optimization of this utility model, by setting a top outlet 19, an ejector column 20 and an electric lifting rod 21, when the cup lid is processed and transferred to the corresponding position of the discharge plate 12, the electric lifting rod 21 pushes the ejector column 20 to move upward. The ejector column 20 passes through the top outlet 19 and lifts the cup lid from the placement groove 4 onto the discharge plate 12, which makes it easier for the subsequent push block 17 to push the cup lid to the collection position, thus solving the problem of the cup lid being stuck in the placement groove 4 and difficult to remove.

[0023] refer to Figure 1 and Figure 3 The bottom of the workbench 1 is symmetrically and fixedly connected with a limiting plate about the discharge port 9. A collection box 22 is slidably connected inside the limiting plate and is located below the discharge port 9.

[0024] As a technical optimization of this utility model, by setting a limiting plate and a collection box 22, the limiting plate can position the installation position of the collection box 22, ensuring that the collection box 22 is accurately connected to the discharge port 9, and the punching waste can fall directly into the collection box 22, which is convenient for centralized collection and processing. At the same time, the collection box 22 adopts a sliding connection design. When the waste is full, the collection box 22 can be pulled out from the limiting plate, cleaned of waste, and reinstalled, which is convenient to operate.

[0025] refer to Figure 3 and Figure 4 The top of the workbench 1 is provided with a balance groove, and the bottom of the rotary disk 3 is fixedly connected with a balance ring 23, and the balance ring 23 is rotatably connected to the balance groove.

[0026] As a technical optimization of this utility model, by setting a balance groove and a balance ring 23, the balance ring 23 can rotate synchronously with the rotating disk 3 in the balance groove, which plays a supporting and guiding role for the rotating disk 3, and avoids the rotating disk 3 from shaking due to uneven force or center of gravity shift during rotation, thus ensuring the stability of the rotating disk 3 and improving the accuracy of the cup lid processing position.

[0027] refer to Figure 1 and Figure 2 The workbench 1 is symmetrically fixedly connected to two sides of the mounting plate 24. The surface of the mounting plate 24 is provided with mounting holes for mounting external processing equipment. The mounting plate 24 and the mounting holes can be used to install the feeding mechanism to adapt to the automatic feeding of cup lids of different sizes, and to install the detection mechanism to adapt to the quality detection after the cup lid is punched.

[0028] As a technical optimization of this utility model, by setting an mounting plate 24 with mounting holes, the feeding mechanism, detection mechanism, secondary processing mechanism and other peripheral equipment can be fixedly connected to the workbench 1 through the mounting holes according to actual processing needs, thereby expanding the function of the device and realizing the integrated operation of plastic cup lid from feeding, processing to discharging, and improving the applicability and integration of the device.

[0029] The working principle and usage process of this utility model are as follows: When using this punching device to process plastic cup lids, firstly, the plastic cup lids to be processed are placed one by one into the eight evenly arranged circular placement slots 4 on the top of the rotating disk 3. At this time, the electric push rods 5 on the top of the rotating disk 3, which correspond one-to-one with the placement slots 4, are activated. Their output ends push the arc-shaped clamping blocks 6 extending into the placement slots 4 to move towards the cup lids. With the help of the clamping pads 7 symmetrically fixed about the arc-shaped clamping blocks 6 on the inner wall of the placement slots 4, the cup lids are stably clamped in the placement slots 4, preventing the cup lids from shifting or being damaged. Then, the stepper motor 2 fixed at the bottom of the worktable 1 is activated, and its output shaft passes through... The rotating disk 3 is driven by the coupling to rotate intermittently at a preset angle. At the same time, the balance ring 23 fixed at the bottom of the rotating disk 3 rotates synchronously in the balance groove opened at the top of the worktable 1 to ensure the stable rotation of the rotating disk 3. When the rotating disk 3 transfers the cup lid holding slot 4 to the bottom of the support plate, the electric push rod 10 fixed at the top of the support plate is activated. Its output end passes through the support plate and pushes the punch head 11 downward to punch the cup lid in the slot 4. The waste generated by punching falls into the bottom of the worktable 1 through the through hole 8 opened at the bottom of the slot 4 and the discharge port 9 opened at the top of the worktable 1. The cup lid is slidably connected to the collection box 22 within the symmetrical limiting plate of the 9-mouth; after punching, the stepper motor 2 continues to drive the rotary disk 3 to rotate, transferring the processed cup lid to the corresponding position on the discharge plate 12. At this time, the ejector column 20, which is slidably connected within the sliding opening at the bottom of the worktable 1, moves upward under the drive of the electric lifting rod 21 fixed at its bottom. The ejector column 20 passes through the top outlet 19 symmetrically opened at the bottom of the placement groove 4, lifting the cup lid from the placement groove 4 onto the discharge plate 12 fixed at the top of the discharge groove; subsequently, the top of the support frame 13 fixed at the top of the discharge plate 12 is rotatably connected to the lead screw 15 via a bearing at one end, driven by a servo motor. As the screw rotates, the moving block 16, which is threaded to the surface of the lead screw 15, moves along the moving port 14 opened at the top of the support frame 13, driving the push block 17 fixed at the bottom of the moving block 16 to move along the surface of the discharge plate 12, pushing the cup lid to the designated collection position. Throughout the process, the controller 18 fixed inside the mounting slot at the center of the rotary disk 3 is electrically connected to the electric push rod 5, the electric push rod 10, the stepper motor 2, the servo motor, and the electric lifting rod 21, realizing the coordinated control of each component. If it is necessary to expand the processing function, external processing equipment can be installed through the mounting holes opened on the surface of the mounting plates 24 symmetrically fixed on both sides of the worktable 1.

[0030] It should be noted that, to achieve a stable electrical connection between the controller 18 and the electric push rod 5 in the rotating state, a hollow shaft conductive slip ring can be selected. Its inner diameter matches the output shaft diameter of the stepper motor 2 or the central shaft diameter of the rotating disk 3. It is installed below the center of the rotating disk 3, with its fixed end fixed to the bottom of the worktable 1 and its rotating end fixed to the central shaft of the rotating disk 3 or the bottom of the mounting groove, rotating synchronously with the rotating disk 3. Then, a wire is led out from the external power supply of the worktable 1 and connected to the terminal block on the fixed end of the conductive slip ring; another wire is led out from the terminal block on the rotating end of the conductive slip ring, passing through the pre-drilled wire hole in the central mounting groove of the rotating disk 3, and then... Do not connect to the power input terminals of controller 18 and electric push rod 5; the conductive slip ring achieves continuous contact between the rotating end and the fixed end through precious metal contacts (such as gold and silver alloys), with low contact resistance, which can avoid power outages or voltage fluctuations caused by poor contact during rotation, meet the power requirements of controller 18 and electric push rod 5, and adapt to the "uniformly arranged ring" structure of rotating disk 3 in the adapter device. The conductive slip ring is located in the center position, which can make the distance from each electric push rod 5 to the power supply line consistent, reduce line loss differences, ensure that the power supply parameters of each electric push rod 5 are uniform, and avoid uneven clamping force.

[0031] It should be noted that the electrical components of this patent can be of the following models: Stepper motor 2 can be a 57BYG series or 42BYG series, suitable for driving the intermittent precise rotation of the rotary disk 3, featuring stable speed and high positioning accuracy, and can accurately drive the placement slot 4 on the rotary disk 3 to switch between different processing stations; Electric push rod 5 can be a DTZ series or L-type electric push rod, adapted to the clamping action of the arc-shaped clamping block 6 and the clamping pad 7 on the plastic cup lid, with smooth operation and adjustable thrust, which can flexibly adjust the clamping force according to the cup lid specifications to avoid damage to the cup lid or loosening of the clamp; Electric push rod 10 can be an XC860 series or TGA series electric push rod, suitable for driving the up and down reciprocating punching action of the punching head 11, featuring precise stroke control and stable output force, and can ensure the consistency of the hole diameter and the accuracy of the position of the punching head 11 for punching the cup lid; Electric lifting rod 21 can be a JF-TGA series or DTP series electric lifting rod, adapted to the ejector column 20 to process The completed action of lifting the cup lid from the placement slot 4 is responsive and smooth, with precise control over the lifting height to ensure the cup lid is smoothly transferred to the discharge plate 12. The servo motor driving the lead screw 15 can be a Mitsubishi HC-KFS series or Panasonic A6 series servo motor, used with a corresponding driver. It is suitable for driving the lead screw 15 to rotate and thus drive the moving block 16 and push block 17 to move. It features high control precision and low operating noise, and can accurately push the cup lid on the discharge plate 12 to the designated collection position. The controller 18 can be a PLC control module (such as Siemens S7-200SMART or Mitsubishi FX3U series), combined with a human-machine interface (such as Weintek TK6071IP or Kunlun Tongtai TPC7062Ti) to form a control system, realizing the linkage control of the stepper motor 2, electric push rod 5, electric push rod 10, electric lifting rod 21 and the servo motor driving the lead screw 15. The controller 18 controls the operation of each electrical component using methods commonly used in existing technologies.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A punching device for processing plastic cup lids, comprising a worktable (1), characterized in that: The workbench (1) has four corners fixedly connected with columns. The bottom of the workbench (1) is fixedly connected with a stepper motor (2). The output shaft of the stepper motor (2) is fixedly connected to a rotating disk (3) via a coupling. The top of the rotating disk (3) has eight evenly arranged circular placement slots (4). The top of the rotating disk (3) is fixedly connected with eight evenly arranged circular electric push rods (5). The eight electric push rods (5) correspond one-to-one with the eight placement slots (4). The output end of the electric push rod (5) extends into the interior of the placement slot (4) and is fixedly connected with an arc-shaped clamping block (6). The inner wall of the placement slot (4) is symmetrically fixedly connected with clamping pads (7) about the arc-shaped clamping block (6). The bottom of the placement slot (4) has a through opening (8). The top of the workbench (1) has a discharge port (9), and the discharge port (9) is used in conjunction with the through opening (8). The top of the workbench (1) is fixedly connected with... A support column is connected to the top of the support column, and a support plate is fixedly connected to the top of the support plate. An electric push rod (10) is fixedly connected to the top of the support plate. The output end of the electric push rod (10) is fixedly connected to a punch head (11) through the support plate. The punch head (11) is located directly above the discharge port (9). A discharge trough is opened on the other side of the top of the workbench (1). A discharge plate (12) is installed on the top of the discharge trough. A support frame (13) is fixedly connected to the top of the discharge plate (12). The support frame (13) is located directly above the placement trough (4) on one side. A moving port (14) is opened on the top of the support frame (13). A lead screw (15) is rotatably connected to the top of the support frame (13) through a bearing. One end of the lead screw (15) is driven by a servo motor. A moving block (16) is threadedly connected to the surface of the lead screw (15). A push block (17) for discharging plastic cup lids is fixedly connected to the bottom of the moving block (16).

2. The punching device for processing plastic cup lids according to claim 1, characterized in that: The rotating disk (3) has an installation groove at its center. A controller (18) is fixedly connected inside the installation groove, and the controller (18) is electrically connected to the electric push rod (5) and the electric push rod (10) respectively.

3. The punching device for processing plastic cup lids according to claim 1, characterized in that: The bottom of the placement slot (4) is symmetrically provided with a top outlet (19), the bottom of the workbench (1) is provided with a sliding opening, and the sliding opening is used in conjunction with the top outlet (19). The inside of the sliding opening is slidably connected with an ejector column (20), and the ejector column (20) is used in conjunction with the top outlet (19). The bottom of the ejector column (20) is fixedly connected with an electric lifting rod (21).

4. The punching device for processing plastic cup lids according to claim 1, characterized in that: The bottom of the workbench (1) is symmetrically fixedly connected with a limiting plate about the discharge port (9). A collection box (22) is slidably connected inside the limiting plate, and the collection box (22) is located below the discharge port (9).

5. The punching device for processing plastic cup lids according to claim 1, characterized in that: The top of the workbench (1) is provided with a balance groove, and the bottom of the rotating disk (3) is fixedly connected with a balance ring (23), and the balance ring (23) is rotatably connected to the balance groove.

6. The punching device for processing plastic cup lids according to claim 1, characterized in that: The workbench (1) is symmetrically fixedly connected to two sides of mounting plates (24), and the surface of the mounting plates (24) is provided with mounting holes for mounting peripheral processing equipment.

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