Silicon rod EVA (Ethylene Vinyl Acetate) liner punching machine

Abstract

The utility model discloses a silicon rod EVA (Ethylene Vinyl Acetate) liner punching machine, which aims to solve the technical problems that on one hand, the integral slitting operation of an annular liner from the liner is inconvenient to realize, and on the other hand, the separated centralized blanking and discharging of waste and finished products after the annular liner is punched are inconvenient to realize. Comprising a machine frame, two symmetrically-arranged tensioning conveying components are installed on the surface of the machine frame, an EVA liner body is conveyed between the opposite surfaces of the two tensioning conveying components in a tensioning mode, and a waste storage box and a material storage box are installed on the surface of the machine frame and correspond to the position between the two tensioning conveying components. Through the arrangement of the rotary cutting cylinder and the punching pipe, on one hand, the slitting operation of the annular gasket on the whole can be achieved, and on the other hand, through the arrangement of the structures such as the negative pressure suction pipe and the suction cup, separated centralized discharging and discharging of waste materials and finished product materials after the annular gasket is punched can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching machines, and in particular relates to a silicon rod EVA liner punching machine. Background Art

[0002] During the processing and use of the silicon rod EVA gasket, the EVA gasket is punched and divided into blocks. In the prior art, there have been various styles of punching machines. The patent document with publication number CN212265984U in the prior art discloses a punching and forming machine for silicone gasket production, including a base, the top of the base is stacked with silicone material, and the top of the base is fixedly connected to a support plate, the top of the support plate is threadedly sleeved with a fixing rod, and the bottom of the top of the support plate is fixedly connected to a fixing spring, the bottom of the fixing spring is fixedly connected to a fixing plate, the side of the top of the base is fixedly connected to a side plate, the side of the side plate is movably sleeved with a screw, the end of the screw is fixedly connected to a forward and reverse motor, the input end of the forward and reverse motor is electrically connected to an external circuit, and the upper The punching and forming machine for silicone gasket production, by setting a support plate, a fixing rod, a fixing spring and a fixing plate, can be adjusted and fixed according to the thickness of multiple rectangular silicone materials stacked during the silicone gasket production process, thereby avoiding the problem of looseness between the rectangular silicone materials. This not only improves the flatness of the silicone gasket incision, but also improves the punching effect of the punching and forming machine. However, the above technical scheme is not convenient for realizing the cutting operation of the annular gasket from the entire gasket on the one hand, and is not convenient for realizing the separated centralized unloading and discharging of waste materials and finished products after the annular gasket is punched and cut on the other hand. Based on this, the utility model provides a silicon rod EVA gasket punching and cutting machine to solve the problems raised in the above background technology. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a silicon rod EVA gasket punching machine, aiming to solve the technical problems that the prior art solutions are not convenient for realizing the cutting operation of the annular gasket as a whole, and are not convenient for realizing the separate centralized unloading and discharging of waste materials and finished products after punching the annular gasket.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the utility model provides such a silicon rod EVA liner punching machine, including a frame, two symmetrically arranged tensioning and conveying components are installed on the surface of the frame, and an EVA liner body is tensioned and conveyed between the opposite surfaces of the two tensioning and conveying components, and a waste storage box and a material storage box are respectively installed on the surface of the frame and at the positions corresponding to the positions between the two tensioning and conveying components, and a punching frame that can move up and down and left and right is installed on the upper part of the frame, and a motor and an air outlet and negative pressure suction component are respectively installed on the surface of the punching frame, and the inner wall of the punching frame A group of peeling cylinders distributed in a linear array are rotatably connected, and the output shaft end of the motor is transmission-connected to a group of peeling cylinders through a chain belt. A negative pressure suction module is installed on the inner wall of the punching frame and at a position corresponding to the inside of each peeling cylinder. A punching tube is slidably connected to the inner wall of the punching frame and at a position corresponding to the axis of each peeling cylinder. The bottom end of the punching tube is fixedly connected to the punching cylinder, and a first compression-resistant spring is sleeved on the peripheral side surface of the punching tube and at a position corresponding to the position between the peeling cylinder and the punching cylinder. The ports of the punching tube and the negative pressure suction module are connected to the air outlet and negative pressure suction components.

[0007] Preferably, the tensioning conveying component includes two symmetrically arranged conveying rollers and a conveying motor fixed to the side of the frame, the output shaft end of the conveying motor is fixedly connected to one of the conveying rollers, a conveying gap that cooperates with the EVA pad is fixedly arranged between the relative surfaces of the two conveying rollers, and the tail ends of the two conveying rollers are fixedly installed with linkage gears, and the two linkage gears are meshed with each other.

[0008] Furthermore, a vertically arranged screw lifting module is fixedly installed inside the frame, and the peripheral side surface of the screw lifting module is transmission-connected with a lifting frame, and the peripheral side surface of the lifting frame is slidably connected to the frame, and a horizontally arranged screw driving module is fixedly installed inside the lifting frame, and the peripheral side surface of the screw driving module is transmission-connected with the punching frame, and the peripheral side surface of the punching frame is slidably connected to the frame.

[0009] Furthermore, the air outlet and negative pressure suction components respectively include a high-pressure fan fixed on the surface of the punching frame and a negative pressure pump fixed on the surface of the lifting frame, the air outlet port of the high-pressure fan is fixedly connected to a first corrugated connecting pipe, the negative pressure port of the negative pressure pump is fixedly connected to a second corrugated connecting pipe, the interior of the punching pipe is fixedly provided with a positive pressure channel connected to the punching cylinder, the top end of the positive pressure channel is fixedly connected to the first corrugated connecting pipe, and the surface of the second corrugated connecting pipe is connected to the negative pressure suction module.

[0010] Furthermore, an air pressure probe is fixedly installed at the connection point between the negative pressure pump and the second corrugated connecting pipe, and a single chip microcomputer electrically connected to the air pressure probe is fixedly installed on the surface of the frame.

[0011] Furthermore, the negative pressure suction module includes a connecting frame arranged above the peeling cylinder, and two symmetrically arranged negative pressure pipes are installed on the bottom surface of the connecting frame. The bottom ends of the two negative pressure pipes are fixedly connected with suction cups, and the top ends of the two negative pressure pipes are connected with a second corrugated connecting pipe. The surrounding side surfaces of the two negative pressure pipes and the positions corresponding to the suction cups and the peeling cylinder are sleeved with second anti-compression springs.

[0012] Furthermore, in a stationary state, the bottom end of the suction cup protrudes downward from the bottom of the rotary cutting cylinder, and in a stationary state, the bottom end of the punching tube protrudes downward from the bottom end of the suction cup.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can realize the cutting operation of the annular gasket as a whole by arranging the rotary cutting cylinder and the punching tube, and can realize the separated centralized unloading and discharging of waste materials and finished products after the annular gasket is punched by arranging the negative pressure suction tube, the suction cup and other structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the silicon rod EVA liner punching and cutting machine of the utility model;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of the motor and lifting frame of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the negative pressure suction pipe and the first anti-compression spring of the utility model;

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0021] The markings in the attached drawings are: 1. frame; 2. EVA pad body; 3. waste storage box; 4. storage box; 5. punching frame; 6. motor; 7. peeling cylinder; 8. punching tube; 9. punching cylinder; 10. first anti-pressure spring; 11. conveying clamping roller; 12. conveying motor; 13. linkage gear; 14. screw lifting module; 15. lifting frame; 16. screw drive module; 17. high-pressure fan; 18. negative pressure pump; 19. first corrugated connecting pipe; 20. second corrugated connecting pipe; 21. single-chip microcomputer; 22. connecting frame; 23. negative pressure suction pipe; 24. suction cup; 25. second anti-pressure spring; 26. air pressure probe. DETAILED DESCRIPTION

[0022] See also Figure 1 - Figure 5 This specific embodiment is a silicon rod EVA liner punching machine, comprising a frame 1, on the surface of which two symmetrically arranged tensioning and conveying components are installed, and between the opposite surfaces of the two tensioning and conveying components, an EVA liner body 2 is tensioned and conveyed;

[0023] The tensioning conveying components respectively include two symmetrically arranged conveying rollers 11 and a conveying motor 12 fixed to the side of the frame 1, the output shaft end of the conveying motor 12 is fixedly connected to a conveying roller 11, a conveying gap matched with the EVA pad is fixedly arranged between the opposite surfaces of the two conveying rollers 11, and the tail ends of the two conveying rollers 11 are fixedly installed with linkage gears 13, and the two linkage gears 13 are meshed with each other;

[0024] When working, the conveying motors 12 in the two tensioning conveying components maintain a set speed difference, and the speed difference between the two conveying conveying motors 12 is maintained, so that the EVA pad body 2 can be effectively tensioned during punching;

[0025] By achieving the tensioned conveying effect of the EVA pad body 2, on the one hand, the punching accuracy of the EVA pad body 2 can be effectively improved, and on the other hand, the punching material can be quickly removed from the EVA pad body 2;

[0026] A waste storage box 3 and a material storage box 4 are respectively installed on the surface of the frame 1 and at positions corresponding to the two tensioning conveying components. A punching frame 5 that can move up and down and left and right is installed on the upper part of the frame 1.

[0027] A vertically arranged screw lifting module 14 is fixedly installed inside the frame 1, and a lifting frame 15 is transmission-connected to the peripheral side of the screw lifting module 14, and the peripheral side of the lifting frame 15 is slidably connected to the frame 1. A horizontally arranged screw driving module 16 is fixedly installed inside the lifting frame 15, and the peripheral side of the screw driving module 16 is transmission-connected to the punching frame 5, and the peripheral side of the punching frame 5 is slidably connected to the frame 1;

[0028] The surface of the punching frame 5 is respectively equipped with a motor 6 and air outlet and negative pressure suction components. The inner wall of the punching frame 5 is rotatably connected to a group of peeling cylinders 7 distributed in a linear array. The output shaft end of the motor 6 is transmission-connected to a group of peeling cylinders 7 through a chain belt.

[0029] A negative pressure absorption module is installed on the inner wall of the punching frame 5 and at the position corresponding to the inside of each peeling cylinder 7. A punching tube 8 is slidably connected to the inner wall of the punching frame 5 and at the position corresponding to the axis of each peeling cylinder 7. The bottom end of the punching tube 8 is fixedly connected to the punching cylinder 9. A first compression spring 10 is sleeved on the peripheral side of the punching tube 8 and at the position corresponding to the peeling cylinder 7 and the punching cylinder 9. The ports of the punching tube 8 and the negative pressure absorption module are connected to the air outlet and negative pressure absorption components.

[0030] The air outlet and negative pressure suction components respectively include a high-pressure fan 17 fixed on the surface of the punching frame 5 and a negative pressure pump 18 fixed on the surface of the lifting frame 15. The air outlet port of the high-pressure fan 17 is fixedly connected to the first corrugated connecting pipe 19, and the negative pressure port of the negative pressure pump 18 is fixedly connected to the second corrugated connecting pipe 20. A positive pressure channel connected to the punching cylinder 9 is fixedly opened inside the punching pipe 8. The top end of the positive pressure channel is fixedly connected to the first corrugated connecting pipe 19, and the surface of the second corrugated connecting pipe 20 is connected to the negative pressure suction module.

[0031] An air pressure probe 26 is fixedly installed at the connection point between the negative pressure pump 18 and the second corrugated connecting pipe 20, and a single chip microcomputer 21 electrically connected to the air pressure probe 26 is fixedly installed on the surface of the frame 1;

[0032] During operation, the air pressure probe 26 feeds back the real-time data to the single chip microcomputer 21, and the single chip microcomputer 21 monitors the negative pressure intensity of the suction cup 24 in real time according to the data feedback from the air pressure probe 26;

[0033] The air pressure probe 26 and the single chip microcomputer 21 can be customized or selected according to actual needs.

[0034] The negative pressure suction module includes a connecting frame 22 arranged above the peeling cylinder 7, and two symmetrically arranged negative pressure suction pipes 23 are installed on the bottom surface of the connecting frame 22. The bottom ends of the two negative pressure suction pipes 23 are fixedly connected with suction cups 24, and the top ends of the two negative pressure suction pipes 23 are connected with the second corrugated connecting pipe 20. The surrounding side surfaces of the two negative pressure suction pipes 23 and the positions corresponding to the suction cups 24 and the peeling cylinder 7 are both provided with second anti-compression springs 25.

[0035] In a stationary state, the bottom end of the suction cup 24 protrudes downward from the bottom of the rotary cutting cylinder 7 , and in a stationary state, the bottom end of the punching tube 8 protrudes downward from the bottom end of the suction cup 24 .

[0036] This device is mainly suitable for the punching operation of silicon rod EVA pads. Before the punching operation, the conveying motors 12 in the two tensioning conveying components maintain a set speed difference, and the speed difference of the two conveying conveying motors 12 is maintained, so that the EVA pad body 2 can be effectively tensioned during punching. During punching, multiple rotary cutting cylinders 7 move to the top of the EVA pad body 2 to be punched, and then, under the driving action of the screw lifting module 14, the punching frame 5 moves down slowly. When the punching frame 5 moves down to a specified position, the bottom end of the punching cylinder 9 first contacts the EVA pad body 2, and gradually presses the EVA pad body 2 to punch. After the punching cylinder 9 applies sufficient pressure to the EVA pad body 2, the suction cup 24 punches from the top of the EVA pad body 2 The part between the tube and the rotary cutting cylinder 7 is positioned by negative pressure suction. After the negative pressure positioning is completed, the rotary cutting cylinder 7 finally contacts with the EVA cushion body 2 and completes the punching operation of the cushion ring in the EVA cushion body 2. When the punching cylinder 9 pressurizes the EVA cushion body 2, the positive pressure rushes to the high-pressure outlet, and then the punched part in the punching tube can quickly enter the waste storage box 3 under the action of the positive pressure. After the punching is completed, the screw lifting module 14 drives the punching frame 5 to reset to the initial height. Then, under the action of the screw linear driving module, the punching frame 5 drives the cut cushion ring to move to the top of the storage box 4. After the displacement is completed, the negative pressure suction pipe 23 loses the negative pressure suction. Under the action of gravity, the punched and rotary cut cushion rings are collected through the storage box 4.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A silicon rod EVA liner punching machine, comprising a frame (1), characterized in that: The surface of the frame (1) is provided with two symmetrically arranged tensioning and conveying components, an EVA pad body (2) is tensioned and conveyed between the opposing surfaces of the two tensioning and conveying components, a waste storage box (3) and a material storage box (4) are respectively installed on the surface of the frame (1) and at positions corresponding to the positions between the two tensioning and conveying components, a punching frame (5) movable up and down and left and right is installed on the upper part of the frame (1), a motor (6) and air outlet and negative pressure suction components are respectively installed on the surface of the punching frame (5), a group of peeling cylinders (7) distributed in a linear array are rotatably connected to the inner wall of the punching frame (5), and the motor ( The output shaft end of the punching frame (5) is connected to a group of peeling cylinders (7) through a chain belt, and a negative pressure absorption module is installed on the inner wall of the punching frame (5) and at a position corresponding to the inside of each peeling cylinder (7). A punching tube (8) is slidably connected to the inner wall of the punching frame (5) and at a position corresponding to the axis of each peeling cylinder (7). The bottom end of the punching tube (8) is fixedly connected to the punching cylinder (9), and a first compression spring (10) is sleeved on the peripheral side surface of the punching tube (8) and at a position corresponding to the position between the peeling cylinder (7) and the punching cylinder (9). The ports of the punching tube (8) and the negative pressure absorption module are connected to the air outlet and negative pressure absorption components.

2. The silicon rod EVA liner punching machine according to claim 1, characterized in that: The tensioning conveying components respectively comprise two symmetrically arranged conveying rollers (11) and a conveying motor (12) fixed to the side of the frame (1); the output shaft end of the conveying motor (12) is fixedly connected to one of the conveying rollers (11); a conveying gap matched with the EVA pad is fixedly arranged between the opposite surfaces of the two conveying rollers (11); and linkage gears (13) are fixedly installed at the tail ends of the two conveying rollers (11); the two linkage gears (13) are meshed with each other.

3. The silicon rod EVA liner punching machine according to claim 2, characterized in that: A vertically arranged screw lifting module (14) is fixedly installed inside the frame (1); the peripheral side surface of the screw lifting module (14) is transmission-connected to a lifting frame (15); the peripheral side surface of the lifting frame (15) is slidably connected to the frame (1); a horizontally arranged screw driving module (16) is fixedly installed inside the lifting frame (15); the peripheral side surface of the screw driving module (16) is transmission-connected to a punching frame (5); and the peripheral side surface of the punching frame (5) is slidably connected to the frame (1).

4. The silicon rod EVA liner punching machine according to claim 3, characterized in that: The air outlet and negative pressure suction components respectively include a high-pressure fan (17) fixed on the surface of the punching frame (5) and a negative pressure pump (18) fixed on the surface of the lifting frame (15); the air outlet port of the high-pressure fan (17) is fixedly connected to a first corrugated joint pipe (19); the negative pressure port of the negative pressure pump (18) is fixedly connected to a second corrugated joint pipe (20); a positive pressure channel connected to the punching cylinder (9) is fixedly opened inside the punching tube (8); the top end of the positive pressure channel is fixedly connected to the first corrugated joint pipe (19); the surface of the second corrugated joint pipe (20) is connected to the negative pressure suction module.

5. The silicon rod EVA liner punching machine according to claim 4, characterized in that: An air pressure probe (26) is fixedly provided at the connection point between the negative pressure pump (18) and the second corrugated connecting pipe (20), and a single chip microcomputer (21) electrically connected to the air pressure probe (26) is fixedly installed on the surface of the frame (1).

6. The silicon rod EVA liner punching machine according to claim 5, characterized in that: The negative pressure suction module comprises a connecting frame (22) arranged above the peeling cylinder (7), and two symmetrically arranged negative pressure suction pipes (23) are installed on the bottom surface of the connecting frame (22), and the bottom ends of the two negative pressure suction pipes (23) are fixedly connected with suction cups (24), and the top ends of the two negative pressure suction pipes (23) are connected with the second corrugated connecting pipe (20), and the peripheral side surfaces of the two negative pressure suction pipes (23) and the positions corresponding to the suction cups (24) and the peeling cylinder (7) are sleeved with second anti-compression springs (25).

7. The silicon rod EVA liner punching machine according to claim 6, characterized in that: In a stationary state, the bottom end of the suction cup (24) protrudes downward from the bottom of the rotary cutting cylinder (7); in a stationary state, the bottom end of the punching tube (8) protrudes downward from the bottom end of the suction cup (24).

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