Rotary edge cutting device for EPDM (ethylene-propylene-diene monomer) sheet

Abstract

The utility model discloses an EPDM (Ethylene-Propylene-Diene Monomer) sheet rotary type edge cutting device which comprises a bedplate, a servo motor is fixed in the middle of the lower surface of the bedplate, a vertical shaft is fixed at the output end of the top of the servo motor, the vertical shaft penetrates through the bedplate and is rotatably connected with the bedplate through a bearing, the top end of the vertical shaft is fixedly connected with a supporting plate, and the supporting plate is fixedly connected with a base. An L-shaped plate is fixed to the side edge of the upper surface of the table plate, a downward pressing assembly is fixed to the position, located above the supporting plate, of the top of the L-shaped plate, and an opening is formed in the side edge of the top end of the L-shaped plate. According to the sheet edge cutting device, the platen, the servo motor, the vertical shaft, the supporting plate, the L-shaped plate, the downward pressing assembly, the second electric telescopic rod and the cutter are arranged, after a sheet to be cut is placed on the surface of the supporting plate, the sheet is pressed and fixed through the downward pressing assembly, then the supporting plate is driven by the servo motor to rotate by a specified angle, and therefore the different side edges of the sheet are rotated to the position below the cutter to be subjected to edge cutting; therefore, the angle of the sheet does not need to be manually and frequently adjusted, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of EPDM sheet cutting technology, and in particular to a rotary edge cutting device for EPDM sheets. Background Technology

[0002] EPDM (ethylene propylene diene monomer) sheets are a high-performance elastic material widely used in automotive, construction, and waterproofing projects due to their excellent weather resistance, ozone resistance, chemical corrosion resistance, and temperature resistance. Its processing mainly includes key steps such as mixing, calendering or extrusion molding, and vulcanization. In the processing, EPDM raw rubber is first uniformly mixed with carbon black, plasticizers, vulcanizing agents, and other additives in an internal mixer to form a plastic compound. This compound is then rolled into the required thickness using a calender or extruded into sheets.

[0003] After EPDM material is processed into sheets, the sheets need to be trimmed to make them into a specified shape. Currently, small trimming devices generally cut the sheet by a cutting mechanism, and then the sheet is manually rotated to adjust the angle of the sheet, and the other side of the sheet is trimmed by the cutting mechanism. This kind of trimming device has relatively low working efficiency, so it needs to be further improved. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rotary edge-cutting device for EPDM sheets.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an EPDM sheet rotary edge cutting device, comprising a table, a servo motor fixed in the middle of the lower surface of the table, a vertical shaft fixed at the top output end of the servo motor, the vertical shaft passing through the table and rotatably connected to the table via a bearing, a support plate fixedly connected to the top end of the vertical shaft, an L-shaped plate fixed to the side of the upper surface of the table, a pressing component fixed at the top of the L-shaped plate and above the support plate, an opening opened on the side of the top end of the L-shaped plate, a second electric telescopic rod vertically arranged inside the opening, a cutter fixedly connected to the bottom telescopic end of the second electric telescopic rod, an adjustment component installed on the upper surface of the L-shaped plate and on both sides of the opening, and support feet fixed at the four corners of the lower surface of the table.

[0006] Furthermore, a support plate is fixed to the top surface of the vertical shaft, a groove is provided in the middle of the upper surface of the support plate, and a through hole is provided at the bottom of the groove. The top of the vertical shaft passes through the through hole and is located inside the groove. The top surface of the vertical shaft is provided with an external thread, and a nut is rotatably connected to the external thread surface through the thread. The upper surface of the support plate is in contact with the lower surface of the support plate.

[0007] Furthermore, the pressing assembly includes a first electric telescopic rod fixed to the upper surface of the L-shaped plate. The bottom telescopic end of the first electric telescopic rod is rotatably connected to a sleeve via a bearing, and a pressure plate is fixedly connected to the lower surface of the sleeve.

[0008] Furthermore, the adjustment assembly includes a first vertical plate and a second vertical plate fixed to both sides of the opening, a guide rod fixed between the first vertical plate and the second vertical plate, a slider slidably connected to the surface of the guide rod, a second electric telescopic rod fixed to the surface of the slider, a lead screw rotatably connected to the surface of the first vertical plate via a bearing, the lead screw passing through the slider and rotatably connected to the slider via a thread, a through groove being opened at the top of the second vertical plate, the lead screw passing through the through groove and being fixedly connected to a handle.

[0009] Furthermore, the surface of the lead screw near the through groove is designed to be smooth, and the top of the through groove is connected to a compression bolt by a threaded rotation, with the bottom end of the compression bolt fitting against the surface of the lead screw.

[0010] Furthermore, the table has a discharge port on the side below the cutter.

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

[0012] 1. In use, this utility model is an EPDM sheet rotary edge cutting device, which includes a table, a servo motor, a vertical shaft, a support plate, an L-shaped plate, a pressing component, a second electric telescopic rod, and a cutter. After the sheet to be cut is placed on the surface of the support plate, the sheet is pressed and fixed by the pressing component. Then, the servo motor drives the support plate to rotate at a specified angle, so that different sides of the sheet rotate under the cutter for edge cutting. This eliminates the need for frequent manual adjustment of the sheet angle, thereby improving work efficiency.

[0013] 2. In use, this utility model is an EPDM sheet rotary edge cutting device, which is equipped with a second electric telescopic rod, a cutter and an adjustment component. The adjustment component can drive the second electric telescopic rod to move horizontally, thereby changing the distance between the cutter and the support plate to achieve cutting of different sheets. 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 perspective view of this utility model;

[0016] Figure 2 : Overall sectional view of this utility model;

[0017] Figure 3 The present utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 The present utility model Figure 2 Enlarged view of section B in the middle.

[0019] The attached figures are labeled as follows:

[0020] 1. Platform; 2. Servo motor; 3. Vertical shaft; 31. Support plate; 32. Nut; 4. Support plate; 41. Groove; 42. Through hole; 5. L-shaped plate; 51. Opening; 6. Pressing assembly; 61. First electric telescopic rod; 62. Sleeve; 63. Pressure plate; 7. Second electric telescopic rod; 8. Cutter; 9. Adjustment assembly; 91. First vertical plate; 92. Second vertical plate; 93. Guide rod; 94. Slider; 95. Lead screw; 96. Handle; 97. Through groove; 98. Extrusion bolt; 10. Discharge port; 11. Support foot. 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 rotary edge cutting device is disclosed, comprising a table 1, a servo motor 2 fixed in the middle of the lower surface of the table 1, a vertical shaft 3 fixed at the top output end of the servo motor 2, the vertical shaft 3 passing through the table 1 and rotatably connected to the table 1 via a bearing, a support plate 4 fixedly connected at the top of the vertical shaft 3, an L-shaped plate 5 fixed on the side of the upper surface of the table 1, a pressing component 6 fixed at the top of the L-shaped plate 5 and above the support plate 4, an opening 51 opened on the side of the top of the L-shaped plate 5, a second electric telescopic rod 7 vertically arranged inside the opening 51, a cutter 8 fixedly connected at the bottom telescopic end of the second electric telescopic rod 7, an adjustment component 9 jointly installed on the upper surface of the L-shaped plate 5 and on both sides of the opening 51, and support feet 11 fixed at the four corners of the lower surface of the table 1.

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

[0024] A support plate 31 is fixed to the top surface of the vertical shaft 3. A groove 41 is provided in the middle of the upper surface of the support plate 4, and a through hole 42 is provided at the bottom of the groove 41. The top of the vertical shaft 3 passes through the through hole 42 and is located inside the groove 41. The top surface of the vertical shaft 3 is provided with an external thread, and a nut 32 is connected to the external thread surface by the thread rotation. The upper surface of the support plate 31 is in contact with the lower surface of the support plate 4.

[0025] In this embodiment, the support plate 4 is detachable. During installation, the through hole 42 in the middle of the support plate 4 is passed through the top of the vertical shaft 3, and the support plate 31 is used to support the support plate 4. Then, the nut 32 is screwed on the top surface of the vertical shaft 3.

[0026] The pressing assembly 6 includes a first electric telescopic rod 61 fixed to the upper surface of the L-shaped plate 5. The bottom telescopic end of the first electric telescopic rod 61 is rotatably connected to a sleeve 62 via a bearing, and a pressure plate 63 is fixedly connected to the lower surface of the sleeve 62.

[0027] When an EPDM sheet is placed on the surface of the pallet 4, the first electric telescopic rod 61 is activated to drive the pressure plate 63 to descend. The pressure plate 63 is used to press and fix the EPDM sheet on the upper surface of the pallet 4. Since the sleeve 62 is rotatably connected to the telescopic end of the first electric telescopic rod 61, the pressure plate 63 will not affect the EPDM sheet from rotating with the pallet 4.

[0028] The adjustment assembly 9 includes a first vertical plate 91 and a second vertical plate 92 fixed on both sides of the opening 51. A guide rod 93 is fixed between the first vertical plate 91 and the second vertical plate 92. A slider 94 is slidably connected to the surface of the guide rod 93. A second electric telescopic rod 7 is fixed to the surface of the slider 94. A lead screw 95 is rotatably connected to the surface of the first vertical plate 91 through a bearing. The lead screw 95 passes through the slider 94 and is rotatably connected to the slider 94 through a thread. A through groove 97 is opened at the top of the second vertical plate 92. The lead screw 95 passes through the through groove 97 and is fixedly connected to a handle 96.

[0029] When the screw 95 is rotated by the handle 96, the screw 95 drives the slider 94 to move along the surface of the guide rod 93. The slider 94 then drives the second electric telescopic rod 7 to move laterally along the guide rod 93, thereby adjusting the position of the second electric telescopic rod 7 and the cutter 8, so that the cutter 8 moves closer to or further away from the support plate 4, thus adjusting the cutting position.

[0030] The surface of the lead screw 95 near the through groove 97 is smooth. The top of the through groove 97 is connected to a compression bolt 98 by a threaded rotation. The bottom end of the compression bolt 98 is in contact with the surface of the lead screw 95.

[0031] After adjusting the position of the cutter 8 by rotating the lead screw 95, tighten the clamping bolt 98 to clamp and fix the lead screw 95 to prevent it from loosening.

[0032] The table 1 has a discharge port 10 on one side below the cutter 8. After the EPDM sheet is cut by the cutter 8, the cut-off waste material can fall directly into the discharge port 10, which is convenient for collecting the cut-off waste material.

[0033] Working principle: First, place the EPDM sheet on the upper surface of the pallet 4. Then, start the first electric telescopic rod 61 to drive the pressure plate 63 to descend and press and fix the EPDM sheet. Next, according to the cutting requirements, rotate the lead screw 95 to drive the cutter 8 to move laterally. After adjusting the position of the cutter 8, tighten the extrusion bolt 98 to fix the lead screw 95. Then, start the second electric telescopic rod 7 to drive the cutter 8 to descend. Use the cutter 8 to cut the side of the EPDM sheet. After cutting one side, the second electric telescopic rod 7 drives the cutter 8 to move up and reset. Then, the servo motor 2 drives the pallet 4 to rotate at a specified angle so that the other side of the EPDM sheet rotates to below the cutter 8. Use the second electric telescopic rod 7 to drive the cutter 8 to descend and cut the other side.

[0034] 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. A rotary edge-cutting device for EPDM sheets, comprising a table (1), characterized in that: A servo motor (2) is fixed in the middle of the lower surface of the platform (1). A vertical shaft (3) is fixed at the top output end of the servo motor (2). The vertical shaft (3) passes through the platform (1) and is rotatably connected to the platform (1) through a bearing. A support plate (4) is fixedly connected to the top of the vertical shaft (3). An L-shaped plate (5) is fixed on the side of the upper surface of the platform (1). A pressing component (6) is fixed on the top of the L-shaped plate (5) and above the support plate (4). An opening (51) is opened on the side of the top of the L-shaped plate (5). A second electric telescopic rod (7) is vertically arranged inside the opening (51). A cutter (8) is fixedly connected to the bottom telescopic end of the second electric telescopic rod (7). An adjustment component (9) is installed on both sides of the opening (51) on the upper surface of the L-shaped plate (5). Support feet (11) are fixed at the four corners of the lower surface of the platform (1).

2. The EPDM sheet rotary edge-cutting device according to claim 1, characterized in that: A support plate (31) is fixed to the top surface of the vertical shaft (3). A groove (41) is provided in the middle of the upper surface of the support plate (4), and a through hole (42) is provided at the bottom of the groove (41). The top of the vertical shaft (3) passes through the through hole (42) and is located inside the groove (41). The top surface of the vertical shaft (3) is provided with an external thread, and a nut (32) is connected to the external thread surface by the thread rotation. The upper surface of the support plate (31) is in contact with the lower surface of the support plate (4).

3. The EPDM sheet rotary edge-cutting device according to claim 1, characterized in that: The pressing assembly (6) includes a first electric telescopic rod (61) fixed to the upper surface of the L-shaped plate (5). The bottom telescopic end of the first electric telescopic rod (61) is rotatably connected to a sleeve (62) via a bearing, and a pressure plate (63) is fixedly connected to the lower surface of the sleeve (62).

4. The EPDM sheet rotary edge-cutting device according to claim 1, characterized in that: The adjustment assembly (9) includes a first vertical plate (91) and a second vertical plate (92) fixed on both sides of the opening (51). A guide rod (93) is fixed between the first vertical plate (91) and the second vertical plate (92). A slider (94) is slidably connected to the surface of the guide rod (93). A second electric telescopic rod (7) is fixed to the surface of the slider (94). A lead screw (95) is rotatably connected to the surface of the first vertical plate (91) through a bearing. The lead screw (95) passes through the slider (94) and is rotatably connected to the slider (94) through a thread. A through groove (97) is opened at the top of the second vertical plate (92). The lead screw (95) passes through the through groove (97) and is fixedly connected to a handle (96).

5. The EPDM sheet rotary edge-cutting device according to claim 4, characterized in that: The surface of the lead screw (95) near the through groove (97) is smooth. The top of the through groove (97) is connected to a compression bolt (98) by a threaded rotation. The bottom end of the compression bolt (98) is in contact with the surface of the lead screw (95).

6. The EPDM sheet rotary edge-cutting device according to claim 1, characterized in that: The table (1) has a discharge port (10) on one side below the cutter (8).

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