A winding device for EVA sheets used in automotive parts

Abstract

This utility model discloses a winding device for EVA sheets used in automotive parts, relating to the field of EVA sheet production technology. The utility model includes a first support frame and a second support frame. Each support frame has a groove on one side, and a support plate is connected inside each groove. A winding roller is placed between the two support plates. A hydraulic cylinder is installed on the other side of the first support frame, and a push block is connected to the output end of the hydraulic cylinder inside the first support frame. The second support frame has a receiving groove inside. This utility model, through the cooperation structure of the ball joint and the fixed groove, achieves automatic connection and disengagement of the winding roller from the motor output end under the action of the hydraulic cylinder and a first spring, avoiding the tedious operation of manually adjusting the position of the insert block and significantly improving disassembly convenience. Simultaneously, the linkage design of the two sets of support plates and the cylinder push frame allows for automatic extension and connection of the other set of winding rollers after one set of rollers completes its operation, reducing downtime and significantly improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of EVA sheet production technology, specifically a winding device for EVA sheets used in automotive parts. Background Technology

[0002] EVA material can be processed into different shapes. The processing can be divided into six processes: sheet, roll, gluing, backing, molding and embossing. When EVA material is processed into sheets, it can be used for automotive parts. After the sheets are processed, they need to be wound up by a winding device.

[0003] A search revealed a winding device for automotive parts sheet material with application number 202421505945.4. This device, by incorporating a winding mechanism, includes a first motor located on the outside of a first support frame and fixedly connected to it. This facilitates easy removal of the wound sheet, addressing the issue that existing devices lack a component for easy removal of the wound sheet, thus improving convenience. However, when removing the wound sheet, the device requires first rotating a second threaded rod to disengage two limiting rollers from the sheet, then rotating the first threaded rod to disengage the insert block from the first fixing block. Furthermore, when restoring the winding rollers after removing the sheet, the insert block may deflect due to impact or its own weight, potentially causing it to align with the slot. This necessitates manual adjustment, making the process overly cumbersome and increasing downtime during sheet removal, thus impacting production efficiency. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a winding device for EVA sheets used in automotive parts, so as to solve the technical problems in the background art mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a winding device for EVA sheets used in automotive parts, comprising a first support frame and a second support frame. Each of the first and second support frames has a sliding groove on one side, and a support plate is connected inside each of the two sliding grooves. A winding roller is placed between the two support plates. A hydraulic cylinder is installed on the other side of the first support frame, and a push block is connected to the output end of the hydraulic cylinder inside the first support frame. A receiving groove is provided inside the second support frame. A motor is installed on the other side of the second support frame, and a fixed base is connected to the output end of the motor. A ball joint is connected inside the fixed base via a second spring. A compression plate is connected inside the receiving groove, and a first spring connects the compression plate to the receiving groove. A fixed frame is installed above each of the first and second support frames on one side, and multiple pressure rollers are connected inside the two fixed frames via connecting rods.

[0006] Furthermore, the take-up roller is C-shaped, and one end of the take-up roller abuts against the push block.

[0007] By adopting the above technical solution, with the cooperation of the pressure roller, the "C"-shaped take-up roller can easily fix the starting end of the sheet, and the push block can provide stable support force to prevent the take-up roller from moving axially during the winding process.

[0008] Furthermore, the other end of the take-up roller is provided with a fixing groove, and the ball head is detachably connected to the take-up roller through the fixing groove.

[0009] By adopting the above technical solution, three sets of fixed grooves and ball joints are provided, and the three sets of ball joints and fixed grooves are distributed in a circular array. The second spring buffers and unloads the ball joints, reducing the impact when the ball joints come into contact with the take-up roller. One end of the fixed seat is threaded to the motor output end, which facilitates the maintenance and replacement of the ball joints and the second spring. The cooperation between the ball joints and the fixed grooves realizes the quick connection between the take-up roller and the motor output end, thereby driving the take-up roller to rotate for winding. When disassembling, the hydraulic cylinder drives the push block to retract. Under the action of the first spring, the compression plate pushes the take-up roller to move, thereby making the ball joints automatically disengage from the fixed groove without manual intervention.

[0010] Furthermore, the output end of the hydraulic cylinder is rotatably connected to the push block.

[0011] By adopting the above technical solution, the rotary connection allows the pusher block to adapt to slight angular deviations when pushing the take-up roller, avoiding jamming caused by rigid connection and ensuring smooth disassembly of the take-up roller. At the same time, during the winding process, the pusher block can rotate with the take-up roller, avoiding the transmission of force to the hydraulic cylinder and affecting the practicality of the device.

[0012] Furthermore, the fixing frame is inclined and is movably connected to the connecting rod.

[0013] By adopting the above technical solution, the inclined fixed frame can make the pressure roller apply a certain downward pressure to the sheet, and with the rotation of the take-up roller, the sheet is rolled up flat. After the sheet is taken out after the winding is completed, the connecting rod drives the pressure roller to automatically slide back to the lowest position under the action of the pressure roller and its own gravity, so as to facilitate the winding with the next set of take-up rollers without the need for manual intervention.

[0014] Furthermore, both the top of the first support frame and the second support frame are connected to limit plates, and gaps are left between the two ends of the winding roller and the two limit plates.

[0015] By adopting the above technical solution, the limiting plate can restrict the up and down movement range of the take-up roller, preventing workers from arbitrarily placing the take-up roller on the support plate, which would cause the take-up roller to fail to fall normally. The gaps at both locations are 5mm, and the take-up roller, support plate, first support frame, and second support frame all have high wear resistance. The gaps are designed to prevent the take-up roller from getting stuck when it falls, thus affecting the practicality of the device.

[0016] Furthermore, the support plate is detachably connected to the first support frame and the second support frame, respectively.

[0017] By adopting the above technical solution, two sets of support plates support the two winding rollers respectively, thereby achieving the effect of alternating use. This avoids long-term downtime when removing the wound sheet, which affects production efficiency. At the same time, the detachable support plates facilitate maintenance and replacement. When the support plates wear out due to long-term use, they can be quickly disassembled and replaced without affecting the overall operation of the equipment.

[0018] Furthermore, the compression plate is movably connected to the receiving groove.

[0019] By adopting the above technical solution, when the compression plate contacts the take-up roller, the compression plate slides along the receiving groove and compresses the first spring under the push of the hydraulic cylinder output end. At this time, the ball head column is exposed and contacts the fixed groove, and gradually inserts into the fixed groove to complete the fixation. Then, driven by the motor output end, the take-up roller is driven to rotate for winding through the cooperation of the ball head column and the fixed groove. After winding is completed, the hydraulic cylinder drives the push block to return to its original position, and the first spring resets and drives the compression plate to push the take-up roller to move towards the push block, so that the fixed groove is separated from the ball head column, which facilitates the connection of the next take-up roller.

[0020] Furthermore, a cylinder is installed between the first support frame and the second support frame, and a pusher is connected to the output end of the cylinder, and the pusher is slidably connected to two slide grooves respectively.

[0021] By adopting the above technical solution, when the winding rollers of this group are finished winding, the output end of the cylinder pushes the pusher to slide along the slide groove, which can drive the support plate, winding rollers and the wound sheet to move synchronously away from the first support frame and the second support frame, making it convenient for workers to transfer the sheet. At the same time, when the output end of the cylinder drives the pusher back to its original position, the other support frame and winding rollers move down under the action of gravity, reconnect and start winding again. Alternating winding reduces downtime and improves production efficiency.

[0022] Furthermore, the connecting rod is provided with a slot on the outside, and there are multiple pressure rollers, which are slidably connected to the connecting rod through the slot.

[0023] By adopting the above technical solution, the slot setting allows multiple pressure rollers to slide on the connecting rod, thereby adjusting the position of the pressure rollers. By adjusting the position of the pressure rollers, the purpose of tensioning and winding sheets of different widths can be achieved.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. This utility model, by setting up a ball head column, a fixing groove, a first spring, a push block, and a compression plate, achieves automatic connection and disconnection between the take-up roller and the motor output end through the cooperation structure of the ball head column and the fixing groove, under the action of the hydraulic cylinder and the first spring. This avoids the tedious operation of manually adjusting the position of the insert block and significantly improves the convenience of disassembly. At the same time, the linkage design of the two sets of support plates and the cylinder push frame can automatically push out and continue the operation of the other set of take-up rollers after one set of take-up rollers has completed the operation, reducing downtime and greatly improving production efficiency.

[0026] 2. This utility model utilizes the cooperation of a "C"-shaped take-up roller and an inclined pressure roller to facilitate the fixing of the starting end of the sheet and the application of downward pressure, ensuring that the sheet is rolled up flat and avoiding looseness or wrinkles; the pressure roller slides and adjusts on the connecting rod through a slot, which can adapt to sheets of different widths and enhance the applicability of the device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the back structure of this utility model;

[0029] Figure 3 This is a schematic cross-sectional view of the first and second support frames of this utility model.

[0030] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0031] Figure 5 This is a schematic cross-sectional view of the fixing seat of this utility model.

[0032] In the diagram: 1. First support frame; 2. Second support frame; 3. Limiting plate; 4. Slide groove; 5. Receiving groove; 6. Fixing frame; 7. Connecting rod; 8. Pressure roller; 9. Hydraulic cylinder; 10. Push block; 11. Support plate; 12. Take-up roller; 13. First spring; 14. Compression plate; 15. Fixing seat; 16. Second spring; 17. Ball head column; 18. Fixing groove; 19. Motor; 20. Cylinder; 21. Push frame. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of this utility model will be described below based on its overall structure.

[0035] Example 1: A winding device for EVA sheets used in automotive parts, such as... Figures 1-5 As shown, the system includes a first support frame 1 and a second support frame 2. Both the first support frame 1 and the second support frame 2 have a sliding groove 4 on one side, with a support plate 11 connected inside each of the two sliding grooves 4. A take-up roller 12 is placed between the two support plates 11. A hydraulic cylinder 9 is installed on the other side of the first support frame 1, with a push block 10 connected to the output end of the hydraulic cylinder 9 inside the first support frame 1. The second support frame 2 has a receiving groove 5 inside, and a motor 19 is installed on the other side of the second support frame 2. A fixed seat 15 is connected to the output end of the motor 19, and a second spring 16 connects to the fixed seat 15 inside. The ball head column 17 has a compression plate 14 connected inside the receiving groove 5. A first spring 13 is connected between the compression plate 14 and the receiving groove 5. A fixing frame 6 is installed on the upper side of the first support frame 1 and the second support frame 2. Multiple pressure rollers 8 are connected inside the two fixing frames 6 through connecting rods 7. The winding roller 12 is C-shaped, and one end of the winding roller 12 abuts against the push block 10. With the cooperation of the pressure rollers 8, the C-shaped winding roller 12 can easily fix the starting end of the sheet, and the abutment of the push block 10 can provide stable support force to prevent the winding roller 12 from moving axially during the winding process.

[0036] See Figure 3 , Figure 4 and Figure 5 In the above embodiment, the other end of the take-up roller 12 is provided with a fixing groove 18, and the ball head column 17 is detachably connected to the take-up roller 12 through the fixing groove 18. There are three sets of fixing groove 18 and ball head column 17, and the three sets of ball head column 17 and fixing groove 18 are distributed in a circular array. The second spring 16 buffers and unloads the ball head column 17, reducing the impact when the ball head column 17 contacts the take-up roller 12. One end of the fixing seat 15 is threadedly connected to the output end of the motor 19, which facilitates the maintenance and replacement of the ball head column 17 and the second spring 16. The cooperation between the ball head column 17 and the fixing groove 18 realizes the quick connection between the take-up roller 12 and the output end of the motor 19, thereby driving the take-up roller 12 to rotate for winding. When disassembling, the hydraulic cylinder 9 only needs to drive the push block 10 to retract. Under the elastic force of the first spring 13, the compression plate 14 pushes the take-up roller 12 to move, thereby making the ball head column 17 automatically disengage from the fixing groove 18 without manual intervention.

[0037] See Figure 3 In the above embodiment, the output end of the hydraulic cylinder 9 is rotatably connected to the push block 10. The rotatable connection allows the push block 10 to adapt to slight angular deviations when pushing the take-up roller 12, avoiding jamming caused by rigid connection and ensuring smooth disassembly of the take-up roller 12. At the same time, during the winding process, the push block 10 can rotate with the take-up roller 12 to avoid transmitting force to the hydraulic cylinder 9 and affecting the practicality of the device.

[0038] See Figures 1-3In the above embodiment, the fixing frame 6 is inclined and is movably connected to the connecting rod 7. The inclined fixing frame 6 allows the pressure roller 8 to apply a certain downward pressure to the sheet, which, together with the rotation of the take-up roller 12, flatly winds up the sheet. After the sheet is taken out after winding, the connecting rod 7, under the action of the pressure roller 8 and its own gravity, drives the pressure roller 8 to automatically slide back to the lowest position, which is convenient for cooperating with the next set of take-up rollers 12 for winding without the need for manual intervention.

[0039] See Figures 1-3 In the above embodiment, the top of the first support frame 1 and the second support frame 2 are both connected to the limiting plate 3, and there is a gap between the two ends of the take-up roller 12 and the two limiting plates 3. The limiting plate 3 can limit the up and down movement range of the take-up roller 12, preventing the operator from arbitrarily placing the take-up roller 12 on the support plate 11, which would cause the take-up roller 12 to fail to fall normally. The gaps at both places are 5mm, and the take-up roller 12, the support plate 11, the first support frame 1 and the second support frame 2 all have high wear resistance. By setting the gaps, the take-up roller 12 is prevented from getting stuck when it falls, which would affect the practicality of the device.

[0040] See Figures 1-3 In the above embodiment, the support plate 11 is detachably connected to the first support frame 1 and the second support frame 2 respectively. The two sets of support plates 11 support the two winding rollers 12 respectively, thereby achieving the effect of alternating use. This avoids long-term machine stoppage when removing the wound sheet, which affects production efficiency. At the same time, the detachable support plate 11 is easy to maintain and replace. When the support plate 11 is worn due to long-term use, it can be quickly disassembled and replaced without affecting the overall operation of the equipment.

[0041] See Figure 3 and Figure 4 In the above embodiment, the compression plate 14 is movably connected to the receiving groove 5. When the compression plate 14 contacts the take-up roller 12, the compression plate 14 slides along the receiving groove 5 and compresses the first spring 13 under the push of the output end of the hydraulic cylinder 9. At this time, the ball head column 17 protrudes from the compression plate 14 and contacts the fixing groove 18, gradually inserting into the fixing groove 18 to complete the fixing. Then, driven by the output end of the motor 19, the take-up roller 12 is driven to rotate and be wound up through the cooperation of the ball head column 17 and the fixing groove 18. After the winding is completed, the hydraulic cylinder 9 drives the push block 10 back to its original position, and the first spring 13 resets and drives the compression plate 14 to push the take-up roller 12 to move towards the push block 10, so that the fixing groove 18 is disengaged from the ball head column 17, which facilitates the connection of the next take-up roller 12.

[0042] See Figures 1-3In the above embodiment, a cylinder 20 is installed between the first support frame 1 and the second support frame 2. The output end of the cylinder 20 is connected to a pusher 21, and the pusher 21 is slidably connected to two slide grooves 4 respectively. When the winding roller 12 of this group finishes winding, the output end of the cylinder 20 pushes the pusher 21 to slide along the slide groove 4, which can drive the support plate 11, the winding roller 12 and the wound sheet to move synchronously away from the first support frame 1 and the second support frame 2, making it convenient for workers to transfer the sheet. At the same time, when the output end of the cylinder 20 drives the pusher 21 back to its original position, the other support frame and the winding roller 12 move down under the action of gravity, reconnect and start winding. Alternating winding reduces downtime and improves production efficiency.

[0043] Example 2: To improve the applicability of the device, Example 2 is an improvement on Example 1. (See attached document for details.) Figures 1-3 The connecting rod 7 has a slot on its outside, and multiple pressure rollers 8 are provided. The multiple pressure rollers 8 are slidably connected to the connecting rod 7 through the slot. The slot allows the multiple pressure rollers 8 to slide on the connecting rod 7, thereby adjusting the position of the pressure rollers 8. By adjusting the position of the pressure rollers 8, the purpose of tensioning and winding sheets of different widths can be achieved.

[0044] The implementation principle of this utility model is as follows: The operator places two sets of take-up rollers 12 and two sets of support plates 11 into the slide grooves 4 of the first support frame 1 and the second support frame 2, respectively. First, the front end of the sheet is inserted into the take-up roller 12. At this time, the hydraulic cylinder 9 is started. Driven by the output end of the hydraulic cylinder 9, the push block 10 drives the take-up roller 12 to move axially. When the compression plate 14 contacts the take-up roller 12, under the action of the thrust, the compression plate 14 slides along the receiving groove 5 and compresses the first spring 13. At this time, the ball head column 17 protrudes from the compression plate 14 and contacts the fixing groove 18. The motor 19 is started. Driven by the output end of the motor 19, the ball head column 17 rotates in the fixing groove 18 until it corresponds to the fixing groove 18. Under the action of the elastic force of the second spring 16, the ball head column 17 is inserted into the fixing groove. Within 18, the take-up roller 12 rotates to take up the sheet. After a certain number of turns, the sheet is cut. At this time, the output end of the hydraulic cylinder 9 drives the push block 10 to reset. Under the action of the first spring 13, the push plate pushes the take-up roller 12 to disengage from the ball head column 17 so that the subsequent cylinder 20 can push and transfer it. After the take-up roller 12 has finished taking up the sheet, the cylinder 20 is started. The output end of the cylinder 20 pushes the push frame 21 to move, thereby pushing the support plate 11, the take-up roller 12 and the sheet out of the slide groove 4, so that the workers can take out the taken-up sheet. When the output end of the cylinder 20 drives the push frame 21 back to its original position, the restriction on the other support plate 11 is released. Under the action of gravity, the other support plate 11 and the take-up roller 12 move down and repeat the previous operation to start taking up the sheet.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A winding device for EVA sheet for automobile accessories, comprising a first support frame (1) and a second support frame (2), characterized in that: The first support frame (1) and the second support frame (2) are provided with a sliding groove (4) on one side. The two sliding grooves (4) are connected to a support plate (11), and a take-up roller (12) is placed between the two support plates (11). A hydraulic cylinder (9) is installed on the other side of the first support frame (1). The output end of the hydraulic cylinder (9) is connected to a push block (10) inside the first support frame (1). The second support frame (2) is provided with a receiving groove (5). A motor (19) is installed on the other side of the second support frame (2). The output end of the motor (19) is connected to a fixed seat (15). A ball head column (17) is connected inside the fixed seat (15) through a second spring (16). A compression plate (14) is connected inside the receiving groove (5). A first spring (13) is connected between the compression plate (14) and the receiving groove (5). A fixed frame (6) is installed above one side of the first support frame (1) and the second support frame (2). A pressure roller (8) is connected inside the two fixed frames (6) through a connecting rod (7).

2. A winding device for EVA sheet for automobile accessories as claimed in claim 1, wherein: The take-up roller (12) is C-shaped, and one end of the take-up roller (12) abuts against the push block (10).

3. The winding device for EVA sheet used in automotive parts according to claim 2, characterized in that: The other end of the take-up roller (12) is provided with a fixing groove (18), and the ball head column (17) is detachably connected to the take-up roller (12) through the fixing groove (18).

4. The winding device for EVA sheet for automobile accessories as claimed in claim 1 wherein: The output end of the hydraulic cylinder (9) is rotatably connected to the push block (10).

5. The winding device for EVA sheet for automobile accessories as claimed in claim 1 wherein: The fixing frame (6) is inclined and is movably connected to the connecting rod (7).

6. A winding device for EVA sheet for automobile accessories as claimed in claim 1, wherein: The top of the first support frame (1) and the second support frame (2) are both connected to the limiting plate (3), and there is a gap between the two ends of the winding roller (12) and the two limiting plates (3).

7. A winding device for EVA sheet for automobile accessories as claimed in claim 1, wherein: The support plate (11) is detachably connected to the first support frame (1) and the second support frame (2).

8. A winding device for EVA sheet for automobile accessories as claimed in claim 1, wherein: The compression plate (14) is movably connected to the receiving groove (5).

9. A winding device for EVA sheets used in automotive parts according to claim 1, characterized in that: A cylinder (20) is installed between the first support frame (1) and the second support frame (2). The output end of the cylinder (20) is connected to a push frame (21), and the push frame (21) is slidably connected to two slide grooves (4).

10. The winding device for EVA sheet for automobile accessories as claimed in claim 1 wherein: The connecting rod (7) has a slot on the outside, and there are multiple pressure rollers (8), and the multiple pressure rollers (8) are slidably connected to the connecting rod (7) through the slot.

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