EPDM sheet cutting and punching device

Abstract

The EPDM sheet cutting and punching device comprises a transverse plate, an opening is formed in the middle of the transverse plate, a cutting assembly is installed in the opening, screw rods used for fixing the cutting assembly are arranged on the lower surface of the transverse plate and located on the two sides of the opening, and an L-shaped plate is fixed to the middle of the upper surface of the transverse plate and located on one side of the opening. An electric telescopic rod is fixed to the top of the L-shaped plate, and the telescopic end of the bottom of the electric telescopic rod is fixedly connected with an extrusion assembly. According to the EPDM raw material winding device, the transverse plate, the cutting assembly, the L-shaped plate, the electric telescopic rod, the extrusion assembly, the unwinding assembly and the winding assembly are arranged, an annular cutter of the cutting assembly is fixedly arranged on the lower portion of the device, the extrusion assembly is driven by the electric telescopic rod to descend, and unwound EPDM raw materials are extruded towards the annular cutter through a pressing plate; the sheet-shaped EPDM material formed through punching directly falls down from the interior of the annular cutter, so that the step of collecting finished products is omitted, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of sheet processing technology, and in particular to an EPDM sheet cutting and punching device. Background Technology

[0002] The EPDM sheet cutting and punching unit is an automated device specifically designed for processing EPDM sheets, primarily used for precision cutting and stamping. EPDM material, due to its excellent weather resistance, ozone resistance, and insulation properties, is widely used in automotive seals, building waterproofing membranes, electronic components, and other fields. This unit integrates cutting, stamping, and die-forming functions to achieve efficient and precise processing, meeting the needs of products with different shapes and sizes.

[0003] EPDM sheet cutting involves unwinding a roll of EPDM material under a die cutter via an unwinding mechanism, then lowering the die cutter via a drive mechanism to cut the EPDM material. After cutting, the finished EPDM material is picked up manually or by a robotic arm. This method has a drawback: after each cut, the machine or robotic arm must pick up the finished material, which affects overall cutting efficiency. Therefore, this invention addresses these shortcomings by proposing an EPDM sheet cutting device that eliminates the need for manual material handling. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an EPDM sheet cutting and punching device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an EPDM sheet cutting and punching device, comprising a horizontal plate, an opening in the middle of the horizontal plate, a cutting component installed inside the opening, screws for fixing the cutting component on both sides of the lower surface of the horizontal plate and on one side of the opening, an L-shaped plate fixed in the middle of the upper surface of the horizontal plate and on one side of the opening, an electric telescopic rod fixed at the top of the L-shaped plate, an extrusion component fixedly connected to the bottom telescopic end of the electric telescopic rod, an unwinding component and a winding component respectively provided on both sides of the upper surface of the horizontal plate, side support plates fixed on both sides of the lower surface of the horizontal plate, a base plate fixedly connected to the bottom ends of the two side support plates, and a storage box placed on the upper surface of the base plate.

[0006] Furthermore, the cutting assembly includes an annular cutter located inside the opening, with the blade of the annular cutter facing upwards. Side plates are fixed on both sides of the bottom end of the annular cutter. The side plates have through holes near the screw for the screw to pass through. The bottom end of the screw passes through the through holes and is rotatably connected to a nut on its surface.

[0007] Furthermore, the unwinding assembly includes a first vertical plate fixed to the upper surface of the horizontal plate, and the top end of the first vertical plate is rotatably connected to an unwinding shaft via a bearing. The winding assembly includes a second vertical plate fixed to the upper surface of the horizontal plate, and the top end of the second vertical plate is rotatably connected to a winding shaft via a bearing.

[0008] Furthermore, guide rollers are rotatably connected to the upper surface of the horizontal plate and on both sides of the opening.

[0009] Furthermore, the extrusion assembly includes a pressure plate fixed to the bottom telescopic end of the electric telescopic rod, and the size of the pressure plate is larger than that of the annular cutter.

[0010] Furthermore, a groove is formed on the lower surface of the pressure plate, and the size of the groove is smaller than that of the annular cutter. Multiple springs and electromagnets are fixed to the top wall of the groove, and the bottom ends of the multiple springs are fixedly connected to a push plate, which is made of iron.

[0011] The beneficial effects of this utility model are:

[0012] 1. In use, this utility model provides an EPDM sheet cutting and punching device, which includes a horizontal plate, a cutting component, an L-shaped plate, an electric telescopic rod, an extrusion component, an unwinding component, and a rewinding component. The device fixes the annular cutter of the cutting component below, and uses the electric telescopic rod to lower the extrusion component. The pressure plate then presses the unwound EPDM raw material against the annular cutter, and the punched sheet EPDM material falls directly downwards from inside the annular cutter, thus eliminating the need for collecting the finished product and improving work efficiency. Furthermore, the cutting component is detachable and replaceable; different shapes of cutting components can be used to meet different punching requirements, making it more flexible to use.

[0013] 2. In use, this utility model is an EPDM sheet cutting and punching device, which is equipped with an electric telescopic rod and an extrusion assembly. The extrusion assembly includes a pressure plate, a groove, a spring, a push plate, and an electromagnet. Whenever the electric telescopic rod drives the pressure plate to descend and punch the EPDM material, the electromagnet is de-energized. After the push plate loses the electromagnet's attraction, the spring will push the push plate downward. The push plate will push the cut sheet EPDM material downward towards the annular cutter, preventing the material from getting stuck inside the annular cutter, thus facilitating the falling of the EPDM material. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1: Overall schematic diagram of this utility model;

[0016] Figure 2 : A three-dimensional view of the annular cutter of this utility model;

[0017] Figure 3 The present utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 4 The present utility model Figure 1 Enlarged view of section B in the middle.

[0019] The attached figures are labeled as follows:

[0020] 1. Horizontal plate; 101. Opening; 2. Cutting assembly; 21. Circular cutter; 22. Side plate; 23. Perforation; 3. Screw; 31. Nut; 4. L-shaped plate; 5. Electric telescopic rod; 6. Extrusion assembly; 61. Pressure plate; 62. Groove; 63. Spring; 64. Push plate; 65. Electromagnet; 7. Unwinding assembly; 71. First vertical plate; 72. Unwinding shaft; 8. Rewinding assembly; 81. Second vertical plate; 82. Rewinding shaft; 9. Guide roller; 10. Side support plate; 11. Base plate; 12. Storage box. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-4 As shown, an EPDM sheet cutting and punching device is disclosed, comprising a horizontal plate 1, an opening 101 in the middle of the horizontal plate 1, a cutting component 2 installed inside the opening 101, screws 3 for fixing the cutting component 2 on both sides of the lower surface of the horizontal plate 1 and on both sides of the opening 101, an L-shaped plate 4 fixed in the middle of the upper surface of the horizontal plate 1 and on one side of the opening 101, an electric telescopic rod 5 fixed at the top of the L-shaped plate 4, a pressing component 6 fixedly connected at the bottom telescopic end of the electric telescopic rod 5, an unwinding component 7 and a winding component 8 respectively provided on both sides of the upper surface of the horizontal plate 1, side support plates 10 fixed on both sides of the lower surface of the horizontal plate 1, a base plate 11 fixedly connected at the bottom ends of the two side support plates 10, and a storage box 12 placed on the upper surface of the base plate 11.

[0023] In this embodiment, a Siemens S7-200 programmable controller is used for control and operation.

[0024] The cutting assembly 2 includes an annular cutter 21 located inside the opening 101, with the blade of the annular cutter 21 facing upwards. Side plates 22 are fixed on both sides of the bottom end of the annular cutter 21. The side plates 22 have through holes 23 near the screw 3 for the screw 3 to pass through. The bottom end of the screw 3 passes through the through holes 23 and is rotatably connected to the surface of the screw 3.

[0025] In this embodiment, the annular cutter 21 is square in shape, but it can also be other shapes, so that different cutting components 2 can be replaced according to the required punching shape. When installing the annular cutter 21, the annular cutter 21 is passed through the opening 101 from below, and the screws 3 on both sides pass through the holes 23 on the two side plates 22. Then, the nuts 31 are screwed on the bottom of the screws 3, and the side plates 22 are pressed and fixed by the nuts 31, thereby fixing the annular cutter 21.

[0026] The unwinding assembly 7 includes a first vertical plate 71 fixed to the upper surface of the horizontal plate 1, and an unwinding shaft 72 is rotatably connected to the top of the first vertical plate 71 via a bearing. The winding assembly 8 includes a second vertical plate 81 fixed to the upper surface of the horizontal plate 1, and a winding shaft 82 is rotatably connected to the top of the second vertical plate 81 via a bearing.

[0027] In this embodiment, a roll of EPDM raw material is sleeved on the surface of the unwinding shaft 72, and an unwinding motor is installed on the first vertical plate 71 to drive the unwinding shaft 72 to rotate. The unwinding motor drives the unwinding shaft 72 to rotate, thereby unwinding the EPDM raw material. A winding motor is installed on the second vertical plate 81 to drive the winding shaft 82 to rotate, so that the punched EPDM waste material can be wound onto the surface of the winding shaft 82.

[0028] Guide rollers 9 are rotatably connected to the upper surface of the horizontal plate 1 and on both sides of the opening 101.

[0029] The EPDM material released from the unwinding shaft 72 passes sequentially through two guide rollers 9. The EPDM material is positioned just above the annular cutter 21 and then wraps around the surface of the take-up shaft 82.

[0030] The extrusion assembly 6 includes a pressure plate 61 fixed to the bottom telescopic end of the electric telescopic rod 5, and the size of the pressure plate 61 is larger than that of the annular cutter 21.

[0031] The electric telescopic rod 5 drives the pressure plate 61 to descend, and the pressure plate 61 squeezes the EPDM material, so that the EPDM material is squeezed onto the top blade of the annular cutter 21, thereby using the annular cutter 21 to punch and shape the EPDM material. The shaped EPDM sheet falls directly into the annular cutter 21.

[0032] The lower surface of the pressure plate 61 has a groove 62, and the size of the groove 62 is smaller than that of the annular cutter 21. Multiple springs 63 and electromagnets 65 are fixed on the top wall of the groove 62. The bottom ends of the multiple springs 63 are fixedly connected to a push plate 64, and the push plate 64 is made of iron.

[0033] Each time the pressure plate 61 descends and finishes punching the EPDM material, the electromagnet 65 is de-energized by the controller. After the electromagnet 65 is de-energized, it no longer attracts the push plate 64, and the spring 63 will press the push plate 64 downward, causing the push plate 64 to continue pushing the formed sheet down the annular cutter 21, so that the sheet falls into the storage box 12 below.

[0034] Working principle: The controller controls the unwinding motor and the rewinding motor to rotate synchronously, thereby moving the EPDM material a specified distance. After the EPDM material has moved a certain distance, the electric telescopic rod 5 drives the pressure plate 61 to descend, using the pressure plate 61 to squeeze the EPDM material onto the annular cutter 21, thus punching the EPDM material. The punched EPDM sheet falls into the annular cutter 21. At the same time as the punching is completed, the electromagnet 65 is de-energized, so that the electromagnet 65 no longer attracts the push plate 64. The spring 63 then presses the push plate 64 downward, causing the push plate 64 to continue pushing the formed sheet down the annular cutter 21, so that the sheet falls into the storage box 12 below. Then the electromagnet 65 is immediately re-energized, using the electromagnet 65 to attract the push plate 64 to reset. Then the electric telescopic rod 5 also drives the pressure plate 61 to reset. Then the controller controls the unwinding motor and the rewinding motor to rotate synchronously to continue moving the EPDM material, preparing for the next punching, and so on. This punching method eliminates the need for manual removal of the punched EPDM sheet from the punching station, thereby improving processing efficiency.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An EPDM sheet cutting and punching device, comprising a horizontal plate (1), characterized in that: An opening (101) is provided in the middle of the horizontal plate (1). A cutting component (2) is installed inside the opening (101). Screws (3) for fixing the cutting component (2) are provided on both sides of the lower surface of the horizontal plate (1) and on both sides of the opening (101). An L-shaped plate (4) is fixed in the middle of the upper surface of the horizontal plate (1) and on one side of the opening (101). An electric telescopic rod (5) is fixed at the top of the L-shaped plate (4). An extrusion component (6) is fixedly connected to the bottom telescopic end of the electric telescopic rod (5). An unwinding component (7) and a winding component (8) are provided on both sides of the upper surface of the horizontal plate (1). Side support plates (10) are fixed on both sides of the lower surface of the horizontal plate (1). A base plate (11) is fixedly connected to the bottom ends of the two side support plates (10). A storage box (12) is placed on the upper surface of the base plate (11).

2. The EPDM sheet cutting and punching device according to claim 1, characterized in that: The cutting assembly (2) includes an annular cutter (21) located inside the opening (101), with the blade of the annular cutter (21) facing upward. Side plates (22) are fixed on both sides of the bottom end of the annular cutter (21). The side plates (22) have through holes (23) near the screw (3) for the screw (3) to pass through. The bottom end of the screw (3) passes through the through hole (23) and is rotatably connected to the surface of the screw (31).

3. The EPDM sheet cutting and punching device according to claim 1, characterized in that: The unwinding assembly (7) includes a first vertical plate (71) fixed to the upper surface of the horizontal plate (1), and the top end of the first vertical plate (71) is rotatably connected to an unwinding shaft (72) via a bearing. The winding assembly (8) includes a second vertical plate (81) fixed to the upper surface of the horizontal plate (1), and the top end of the second vertical plate (81) is rotatably connected to a winding shaft (82) via a bearing.

4. The EPDM sheet cutting and punching device according to claim 1, characterized in that: Guide rollers (9) are rotatably connected to the upper surface of the horizontal plate (1) and on both sides of the opening (101).

5. The EPDM sheet cutting and punching device according to claim 2, characterized in that: The extrusion assembly (6) includes a pressure plate (61) fixed to the bottom telescopic end of the electric telescopic rod (5), and the size of the pressure plate (61) is larger than that of the annular cutter (21).

6. The EPDM sheet cutting and punching device according to claim 5, characterized in that: The pressure plate (61) has a groove (62) on its lower surface, and the size of the groove (62) is smaller than that of the annular cutter (21). Multiple springs (63) and electromagnets (65) are fixed on the top wall of the groove (62). The bottom ends of the multiple springs (63) are fixedly connected to a push plate (64), and the push plate (64) is made of iron.

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