Extrusion device for EVA (Ethylene Vinyl Acetate) sheets

Abstract

The utility model relates to the technical field of EVA (Ethylene Vinyl Acetate) sheet extrusion, and discloses an extrusion device for EVA sheets, which comprises an operating platform, the operating platform is fixedly connected with a fixed frame I, the fixed frame I is fixedly connected with a motor I, the output end of the motor I is fixedly connected with a rotating shaft, the rotating shaft is fixedly connected with a gear I, and the gear I is fixedly connected with a gear II. The first gear is meshed with a second gear, the second gear is meshed with a third gear, the first gear is meshed with a fourth gear, and the fourth gear is meshed with a fifth gear. According to the EVA sheet cutting device, accurate control can be achieved by adjusting the extrusion thickness of the EVA sheet extrusion device, so that individual requirements of customers are met, diversified market requirements are met, the EVA sheets can be effectively prevented from moving or shaking in the cutting process, it is guaranteed that a cutting line is consistent with a preset design requirement, and the production efficiency is improved. And therefore, the accurate and high-quality cutting effect on the EVA sheet is achieved, and the cutting precision of the EVA sheet is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of EVA sheet extrusion, in particular to an extrusion device for EVA sheets. Background Art

[0002] With the rapid development of modern industrial technology, polymer materials are increasingly used in various fields. As a thermoplastic plastic with excellent performance, EVA is widely used in wire and cable manufacturing, film production, automotive industry, building sound insulation and waterproofing and other fields due to its excellent elasticity, flexibility, insulation, weather resistance and chemical corrosion resistance.

[0003] When traditional EVA sheet extrusion devices extrude EVA sheets, since different application fields have different requirements for the thickness of EVA sheets, most EVA sheet extrusion devices cannot adjust the extrusion thickness according to customer needs, resulting in an inability to meet diverse market demands. In addition, when traditional EVA sheet extrusion devices cut the EVA sheets after extrusion, they cannot give priority to compacting the EVA sheets, which is prone to deviation during cutting, resulting in poor cutting accuracy of the EVA sheets. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an extrusion device for EVA sheets.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an extrusion device for EVA sheets, comprising an operating table, the operating table is fixedly connected to a fixed frame 1, the fixed frame 1 is fixedly connected to a motor 1, the output end of the motor 1 is fixedly connected to a rotating shaft, the rotating shaft is fixedly connected to a gear 1, the gear 1 is meshed with a gear 2, the gear 2 is meshed with a gear 3, the gear 1 is meshed with a gear 4, the gear 4 is meshed with a gear 5, the gear 5 is fixedly connected to a rotating shaft 1, the rotating shaft 1 is rotatably connected to a sliding block 1, the fixed frame 1 is provided with a slide groove 1, the slide groove 1 is slidably connected to a sliding block 1, the fixed frame 1 is provided with a slide groove 2, the slide groove 2 is slidably connected to a sliding block 2, and the sliding block 2 is rotatably connected to a rotating shaft 2.

[0006] As a further description of the above technical solution:

[0007] The fixing frame 1 is fixedly connected to the motor 2, the output end of the motor 2 is fixedly connected to the threaded rod 1, the threaded rod 1 is threadedly connected to the sliding block 2, and the threaded rod 1 is rotatably connected to the fixing frame 1.

[0008] As a further description of the above technical solution:

[0009] The rotating shaft is fixedly connected with connecting rod 1, connecting rod 1 is hinged with connecting rod 2, connecting rod 2 is rotatably connected to rotating shaft 2, rotating shaft 2 is fixedly connected with extrusion shaft 1, connecting rod 1 is hinged with connecting rod 3, connecting rod 3 is rotatably connected to rotating shaft 1, and rotating shaft 1 is fixedly connected with extrusion shaft 2.

[0010] As a further description of the above technical solution:

[0011] The operating table is fixedly connected to a fixing frame 2, a sliding groove 4 is provided on the fixing frame 2, a slider 1 is slidably connected in the sliding groove 4, the slider 1 is rotatably connected to the rotating shaft 2, a sliding groove 3 is provided on the fixing frame 2, a slider 2 is slidably connected in the sliding groove 3, and the slider 2 is rotatably connected to the rotating shaft 1.

[0012] As a further description of the above technical solution:

[0013] The operating table is fixedly connected to a fixing frame three, the fixing frame three is fixedly connected to a motor three, the output end of the motor three is fixedly connected to a threaded rod two, the threaded rod two is threadedly connected to a threaded block, the threaded block is fixedly connected to a slider three, the fixing frame three is provided with a slide groove five, and the slider three is slidably connected in the slide groove five.

[0014] As a further description of the above technical solution:

[0015] The threaded block is fixedly connected with a hydraulic telescopic rod, the hydraulic telescopic rod is fixedly connected with a fixing plate, the fixing plate is fixedly connected with a cutting blade, the fixing plate is fixedly connected with a damping rod, and the damping rod is fixedly connected with a fixed pressing block.

[0016] As a further description of the above technical solution:

[0017] The operating table is rotatably connected to a rotating column, and the rotating shaft is rotatably connected to a fixing frame.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the threaded rod 1 is driven to rotate by the motor 2, and the threaded rod 1 drives the extrusion shaft 1 on the rotating shaft 2 to move downward through the sliding block 2. The rotating shaft 2 moves downward and is offset by the connecting rod 2 with the connecting rod 1, so that the extrusion shaft 2 on the rotating shaft 1 is driven upward by the connecting rod 3 to adjust the extrusion thickness. Since different application fields have different requirements for the thickness of EVA sheets, whether it is the precision electronics field that requires ultra-thin sheets, or the sound insulation and heat insulation occasions that require thicker sheets, the extrusion thickness of the EVA sheet can be accurately controlled by adjusting the extrusion device, thereby meeting the personalized needs of customers and then meeting the diverse market needs.

[0020] 2. In the utility model, the fixed plate is driven to move downward by the hydraulic telescopic rod, and the fixed plate drives the fixed pressure block through the damping rod to first press and fix the EVA sheet. After the EVA sheet press is fixed, the fixed plate drives the cutting blade to continuously descend to cut the EVA sheet, so that when cutting the EVA sheet, the EVA sheet can be effectively prevented from moving or shaking during the cutting process, thereby ensuring that the cutting line is consistent with the preset design requirements, thereby achieving accurate and high-quality cutting effect of the EVA sheet, and greatly improving the cutting accuracy of the EVA sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional structural schematic diagram of an extrusion device for EVA sheets proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of an extrusion device for EVA sheets proposed by the utility model;

[0023] Figure 3 A schematic diagram of the partial structure of an extrusion device for EVA sheets proposed in the utility model Figure 1 ;

[0024] Figure 4 A schematic diagram of the partial structure of an extrusion device for EVA sheets proposed in the utility model Figure 2 .

[0025] Legend:

[0026] 1. Operation table; 2. Rotating column; 3. Fixed frame 1; 4. Motor 1; 5. Rotating shaft; 6. Gear 1; 7. Gear 2; 8. Gear 3; 9. Gear 4; 10. Gear 5; 11. Rotating shaft 1; 12. Sliding block 1; 13. Sliding slot 1; 14. Sliding slot 2; 15. Rotating shaft 2; 16. Sliding block 2; 17. Motor 2; 18. Threaded rod 1; 19. Extrusion shaft 1; 20. Extrusion shaft 2; 2 1. Fixed frame 2; 22. Slide 3; 23. Slide 4; 24. Slider 1; 25. Slider 2; 26. Fixed frame 3; 27. Motor 3; 28. Threaded rod 2; 29. ​​Threaded block; 30. Slider 3; 31. Slide 5; 32. Hydraulic telescopic rod; 33. Fixed plate; 34. Cutting disc; 35. Damping rod; 36. Fixed pressure block; 37. Connecting rod 1; 38. Connecting rod 2; 39. Connecting rod 3. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-Figure 4 The utility model provides an embodiment: an extrusion device for EVA sheets, including an operating table 1, the operating table 1 is fixedly connected to a fixed frame 3, the fixed frame 3 is fixedly connected to a motor 4, the output end of the motor 4 is fixedly connected to a rotating shaft 5, the rotating shaft 5 is fixedly connected to a gear 6, the gear 6 is meshed with a gear 2 7, the gear 27 is meshed with a gear 3 8, the gear 16 is meshed with a gear 4 9, the gear 4 9 is meshed with a gear 5 10, the gear 5 10 is fixedly connected to a rotating shaft 11, the rotating shaft 11 is rotatably connected to a sliding block 12, the fixed frame 3 is provided with a slide groove 13, the slide groove 13 is slidably connected to the sliding block 12, the fixed frame 3 is provided with a slide groove 2 14, the slide groove 2 14 is slidably connected to the sliding block 2 1 6. The sliding block 16 is rotatably connected to the rotating shaft 15, and is driven by the motor 17 to drive the threaded rod 18 to rotate. The threaded rod 18 drives the extrusion shaft 19 on the rotating shaft 15 to move downward through the sliding block 16. The rotating shaft 15 moves downward and is offset by the connecting rod 38 with the connecting rod 1 37, so that the extrusion shaft 20 on the rotating shaft 11 is driven to move upward through the connecting rod 39 to adjust the extrusion thickness. Since different application fields have different requirements for the thickness of EVA sheets, whether it is the precision electronics field that requires ultra-thin sheets, or the sound insulation and heat insulation occasions that require thicker sheets, the extrusion thickness of the EVA sheet can be accurately controlled by adjusting the extrusion device of the EVA sheet, thereby meeting the personalized needs of customers and then meeting the diverse market needs.

[0029] The fixed frame 13 is fixedly connected to the motor 2 17, the output end of the motor 2 17 is fixedly connected to the threaded rod 18, the threaded rod 18 is threadedly connected to the sliding block 2 16, the threaded rod 18 is rotatably connected to the fixed frame 13, the rotating shaft 5 is fixedly connected to the connecting rod 1 37, the connecting rod 1 37 is hinged to the connecting rod 2 38, the connecting rod 2 38 is rotatably connected to the rotating shaft 2 15, the rotating shaft 2 15 is fixedly connected to the extrusion shaft 19, the connecting rod 1 37 is hinged to the connecting rod 3 39, the connecting rod 3 39 is rotatably connected to the rotating shaft 11, and the rotating shaft 11 is fixedly connected to the extrusion shaft 20, the operating table 1 is fixedly connected to a fixing frame 21, the fixing frame 21 is provided with a slide groove 4 23, a slider 1 24 is slidably connected in the slide groove 4 23, the slider 1 24 is rotatably connected to the rotating shaft 2 15, the fixing frame 21 is provided with a slide groove 3 22, a slider 2 25 is slidably connected in the slide groove 3 22, the slider 2 25 is rotatably connected to the rotating shaft 11, the operating table 1 is fixedly connected to a fixing frame 3 26, the fixing frame 3 26 is fixedly connected to a motor 3 27, the output end of the motor 3 27 is fixedly connected to a threaded rod 28, the threaded rod 28 is threadedly connected A threaded block 29 is connected, the threaded block 29 is fixedly connected with a slider 30, a slide groove 5 31 is provided on the fixed frame 3 26, the slide groove 5 31 is slidably connected with the slider 30, the threaded block 29 is fixedly connected with a hydraulic telescopic rod 32, the hydraulic telescopic rod 32 is fixedly connected with a fixed plate 33, the fixed plate 33 is fixedly connected with a cutting blade 34, the fixed plate 33 is fixedly connected with a damping rod 35, the damping rod 35 is fixedly connected with a fixed pressure block 36, the operating table 1 is rotatably connected with a rotating column 2, the rotating shaft 5 is rotatably connected to the fixed frame 1 3, and the hydraulic telescopic rod 32 is fixedly connected with the hydraulic telescopic rod 32. The driving force drives the fixed plate 33 to move downward, and the fixed plate 33 drives the fixed pressure block 36 through the damping rod 35 to preferentially press and fix the EVA sheet. After the EVA sheet press is fixed, the fixed plate 33 drives the cutting blade 34 to continuously descend to cut the EVA sheet, so that when cutting the EVA sheet, the EVA sheet can be effectively prevented from moving or shaking during the cutting process, thereby ensuring that the cutting line is consistent with the preset design requirements, thereby achieving accurate and high-quality cutting effect of the EVA sheet, and greatly improving the cutting accuracy of the EVA sheet.

[0030] Working principle: First, when extruding the EVA sheet, start the motor 4, the motor 4 drives the rotating shaft 5 to rotate, the rotating shaft 5 rotates and drives the gear 6 to rotate, the gear 6 drives the gear 3 8 to rotate through the gear 2 7, the gear 3 8 rotates through the rotating shaft 2 15 to drive the extrusion shaft 19 to rotate, the gear 6 rotates and also drives the gear 4 9 to rotate, the gear 4 9 drives the rotating shaft 11 to rotate through the gear 5 10, thereby driving the extrusion shaft 2 20 on the rotating shaft 11 to rotate to extrude the EVA sheet. If the extrusion thickness needs to be adjusted, Turn off the motor 14, start the motor 217, the motor 217 drives the threaded rod 18 to rotate, the threaded rod 18 drives the extrusion shaft 19 on the rotating shaft 215 to move downward through the sliding block 216, the rotating shaft 215 moves downward through the connecting rod 238 and the connecting rod 137 to deviate, so that the extrusion shaft 20 on the rotating shaft 11 is driven to move upward through the connecting rod 39 to adjust the extrusion thickness. Since different application fields have different requirements for the thickness of EVA sheets, whether it is the precision electronics field that requires ultra-thin sheets, or the sound insulation and heat insulation occasions that require thicker sheets, the thickness of the EVA sheets can be adjusted by adjusting the thickness of the EVA sheets. The extrusion device of the EVA sheet can realize precise control of the extrusion thickness, so as to meet the personalized needs of customers and further meet the diversified market needs. The extruded EVA sheet moves forward through the extrusion thrust of the extrusion shaft 19 and the extrusion shaft 20, and then the motor 3 27 is started, the motor 3 27 drives the threaded rod 28 to rotate, and the threaded rod 28 rotates to drive the threaded block 29 to move, so that the slider 3 30 on the threaded block 29 slides in the slide groove 5 31, thereby driving the slider 1 24 below to move and adjust to a suitable cutting position, and then the hydraulic telescopic rod 3 is started. 2. The hydraulic telescopic rod 32 drives the fixed plate 33 to move downward. The fixed plate 33 drives the fixed pressing block 36 through the damping rod 35 to first press and fix the EVA sheet. After the EVA sheet press is fixed, the fixed plate 33 drives the cutting blade 34 to continuously descend to cut the EVA sheet, so that when cutting the EVA sheet, the EVA sheet can be effectively prevented from moving or shaking during the cutting process, thereby ensuring that the cutting line is consistent with the preset design requirements, thereby achieving accurate and high-quality cutting effect of the EVA sheet, and greatly improving the cutting accuracy of the EVA sheet.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An extrusion device for EVA sheets, comprising an operating table (1), characterized in that: The operating table (1) is fixedly connected to a fixing frame (3), the fixing frame (3) is fixedly connected to a motor (4), the output end of the motor (4) is fixedly connected to a rotating shaft (5), the rotating shaft (5) is fixedly connected to a gear (6), the gear (6) is meshed with a gear (7), the gear (7) is meshed with a gear (8), the gear (6) is meshed with a gear (9), the gear (9) is meshed with a gear (10) ), the gear five (10) is fixedly connected to a rotating shaft one (11), the rotating shaft one (11) is rotatably connected to a sliding block one (12), the fixed frame one (3) is provided with a sliding groove one (13), the sliding block one (12) is slidably connected in the sliding groove one (13), the fixed frame one (3) is provided with a sliding groove two (14), the sliding block two (16) is slidably connected in the sliding groove two (14), and the sliding block two (16) is rotatably connected to the rotating shaft two (15).

2. The extrusion device for EVA sheet according to claim 1, characterized in that: The fixing frame 1 (3) is fixedly connected to the motor 2 (17), the output end of the motor 2 (17) is fixedly connected to the threaded rod 1 (18), the threaded rod 1 (18) is threadedly connected to the sliding block 2 (16), and the threaded rod 1 (18) is rotatably connected to the fixing frame 1 (3).

3. The extrusion device for EVA sheet according to claim 2, characterized in that: The rotating shaft (5) is fixedly connected to a connecting rod 1 (37), the connecting rod 1 (37) is hinged to a connecting rod 2 (38), the connecting rod 2 (38) is rotatably connected to the rotating shaft 2 (15), the rotating shaft 2 (15) is fixedly connected to an extrusion shaft 1 (19), the connecting rod 1 (37) is hinged to a connecting rod 3 (39), the connecting rod 3 (39) is rotatably connected to the rotating shaft 1 (11), and the rotating shaft 1 (11) is fixedly connected to the extrusion shaft 2 (20).

4. The extrusion device for EVA sheet according to claim 3, characterized in that: The operating table (1) is fixedly connected to a second fixing frame (21), a fourth slide groove (23) is provided on the second fixing frame (21), a first slide block (24) is slidably connected in the fourth slide groove (23), the first slide block (24) is rotatably connected to the second rotating shaft (15), a third slide groove (22) is provided on the second fixing frame (21), a second slide block (25) is slidably connected in the third slide groove (22), the second slide block (25) is rotatably connected to the first rotating shaft (11).

5. The extrusion device for EVA sheet according to claim 4, characterized in that: The operating table (1) is fixedly connected to a fixing frame three (26), the fixing frame three (26) is fixedly connected to a motor three (27), the output end of the motor three (27) is fixedly connected to a threaded rod two (28), the threaded rod two (28) is threadedly connected to a threaded block (29), the threaded block (29) is fixedly connected to a slider three (30), the fixing frame three (26) is provided with a slide groove five (31), and the slide groove five (31) is slidably connected to the slider three (30).

6. The extrusion device for EVA sheet according to claim 5, characterized in that: The threaded block (29) is fixedly connected to a hydraulic telescopic rod (32), the hydraulic telescopic rod (32) is fixedly connected to a fixing plate (33), the fixing plate (33) is fixedly connected to a cutting blade (34), the fixing plate (33) is fixedly connected to a damping rod (35), and the damping rod (35) is fixedly connected to a fixed pressure block (36).

7. An extrusion device for EVA sheets according to claim 6, characterized in that: The operating table (1) is rotatably connected to a rotating column (2), and the rotating shaft (5) is rotatably connected to a fixing frame (3).

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