Auxiliary device for wrapping EVA foam roll core
By designing an auxiliary device for wrapping EVA foam rolls, and utilizing structures such as magnetic guide cylinders and arc-shaped clamps, the problem of inconvenient EVA foam wrapping was solved, achieving uniform wrapping and adapting to foams of different widths.
Patent Information
- Application Number
- CN202423002327.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In the existing technology, as the width of the diaphragm increases, the length of the EVA core increases, which makes the EVA foam wrapping process inconvenient and ineffective.
An auxiliary device for wrapping EVA foam roll cores was designed, including a U-shaped frame, a lifting cylinder, a magnetic guide cylinder, an arc-shaped clamp, and an L-shaped limiting plate. The magnetic guide cylinder drives the arc-shaped clamp and the roll core to move, so that the EVA foam is evenly adhered to the roll core. The position of the limiting plate is adjusted by gears and toothed plates to adapt to foams of different widths.
It achieves uniform coating of EVA foam, reduces the difficulty of operation for workers, improves product quality, and is suitable for EVA foam rolls of different widths.
Smart Images
Figure CN223494839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of EVA foam roll core technology, specifically an auxiliary device for covering EVA foam roll cores. Background Technology
[0002] Foam cores are materials made from foamed plastic particles. Foam cores are categorized into PU foam cores, antistatic foam cores, conductive foam cores, EPE, antistatic EPE, CR, EVA, crosslinked PE, SBR, EPDM, etc. Foam cores possess a range of characteristics including elasticity, lightweight, rapid pressure-sensitive fixing, ease of use, flexibility, ultra-thinness, and reliable performance. The slit separator, as one of the four main raw materials of a battery, directly determines the battery's performance based on its appearance and performance. The wound core, as an important auxiliary material in separator manufacturing, directly affects the quality of separator winding due to its design and quality.
[0003] Currently, the commonly used core for winding is generally an EVA core that wraps EVA foam around a paper tube. However, as the width of the diaphragm gradually increases, the length of the corresponding EVA core also increases, which makes it extremely inconvenient for workers to wrap the EVA foam and easily leads to poor wrapping effect of the EVA foam. Summary of the Invention
[0004] The purpose of this invention is to provide an auxiliary device for covering EVA foam core rolls, so as to solve the problems mentioned in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An auxiliary device for covering EVA foam cores includes a base, on the upper surface of which a bottom layer of foam is fixed. A U-shaped frame is fixedly mounted on the upper end of the bottom layer of foam. Two mounting plates are fixedly mounted on both sides of the upper end of the U-shaped frame. A lifting cylinder is mounted on the mounting plate. The telescopic end of the lifting cylinder passes through the mounting plate and is fixedly connected to a magnetic cylinder mounting seat located below the mounting plate. A magnetic guide cylinder is installed between the two magnetic cylinder mounting seats. A connecting rod is fixedly connected to the moving end of the magnetic guide cylinder. An arc-shaped clamp is fixedly connected to the bottom end of the connecting rod. An L-shaped limiting plate is provided on the inner side of the U-shaped frame.
[0007] In a preferred embodiment, a control panel is fixedly installed on one side wall of the U-shaped frame. The control panel is electrically connected to multiple lifting cylinders, and the multiple lifting cylinders are synchronously controlled by the control panel, so that the magnetic guide rail cylinders rise and fall synchronously.
[0008] In a preferred embodiment, a lifting guide rail is fixedly installed on the inner side wall of the U-shaped frame. A lifting groove is opened at one end of the lifting guide rail, and a guide slider is slidably installed inside the lifting groove. One end of the guide slider is fixedly installed on the outer side wall of the magnetic guide cylinder. The lifting guide rail and the guide slider can make the magnetic guide cylinder more stable when it is raised and lowered.
[0009] In a preferred embodiment, the height of the L-shaped limiting plate is less than the thickness of the EVA foam, and the height of the L-shaped limiting plate is the same as the thickness of the EVA foam to ensure that the core rolls smoothly and without tilting when rolling back and forth.
[0010] In a preferred embodiment, one end of the L-shaped limiting plate penetrates the side wall of the U-shaped frame and is fixedly connected to a toothed plate disposed on the outside of the U-shaped frame. A gear is meshed at the upper end of the toothed plate, and a rotating shaft is disposed at the middle position of the gear. A limiting protrusion is fixedly disposed on the outer side wall of the rotating shaft, and a limiting groove is disposed at the connection between the gear and the rotating shaft. The position of the L-shaped limiting plate can be adjusted through the gear, toothed plate and other structures, thus making it suitable for EVA foam of different widths.
[0011] In a preferred embodiment, a control box is fixedly installed at one end of the U-shaped frame, one end of the rotating shaft passes through the side wall of the control box and is fixedly connected to a rotating handle, the end of the rotating shaft away from the rotating handle is threadedly connected to the control box, and the control box has a threaded hole that matches the rotating shaft. The threaded connection between the rotating shaft and the control box can both drive the rotating shaft to rotate and enable self-positioning.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model, through the configuration of a U-shaped frame, lifting cylinder, magnetic guide rail cylinder, arc-shaped clamp, L-shaped limit plate, lifting guide rail, guide slider, etc., lays EVA foam inside the U-shaped frame, and uses the arc-shaped clamp to hold it at both ends of the roll core. The magnetic guide rail cylinder drives the arc-shaped clamp and EVA foam to move, thereby moving the roll core. During the movement of the roll core, the EVA foam adheres to the roll core, achieving the covering of the EVA foam roll core. This utility model has a simple structure, is easy to use, and has good uniformity. It avoids the problem of workers being unable to apply force smoothly due to the excessive length, thereby reducing product defects.
[0014] 2. This utility model, by setting up an L-shaped limiting plate, a toothed plate, a gear, a rotating shaft, a control box and other structures, can realize the adjustment of the position of the L-shaped limiting plate, so that the equipment can be applied to EVA foam of different widths. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0017] Figure 3 This is a schematic diagram of the structure of the U-shaped frame after the EVA foam and core are placed inside;
[0018] Figure 4 This is a schematic diagram of the transmission structure of the gear of this utility model.
[0019] The following are the labels in the diagram: 1. Base; 2. Bottom layer foam; 3. U-shaped frame; 4. Mounting plate; 5. Lifting cylinder; 6. Magnetic cylinder fixing seat; 7. Magnetic guide rail cylinder; 8. Connecting rod; 9. Arc-shaped clamp; 10. L-shaped limit plate; 11. Control panel; 12. Lifting guide rail; 13. Lifting groove; 14. Guide slider; 15. Toothed plate; 16. Gear; 17. Rotating shaft; 18. Limiting protrusion; 19. Limiting slide groove; 20. Control box; 21. Rotating handle; 22. EVA foam; 23. Core. Detailed Implementation
[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example: Please refer to Figures 1-4 This utility model provides an auxiliary device for covering EVA foam core rolls, the technical solution of which is as follows:
[0022] An auxiliary device for covering EVA foam core includes a base 1. A bottom layer of foam 2 is fixed on the upper surface of the base 1. A U-shaped frame 3 is fixedly installed at the upper end of the bottom layer of foam 2. Two mounting plates 4 are fixedly installed on both sides of the upper end of the U-shaped frame 3. A lifting cylinder 5 is installed on the mounting plate 4. The telescopic end of the lifting cylinder 5 passes through the mounting plate 4 and is fixedly connected to a magnetic cylinder fixing seat 6 located below the mounting plate 4. A magnetic guide cylinder 7 is installed between the two magnetic cylinder fixing seats 6. In specific use, the magnetic guide cylinder 7 adopts the MRDX series magnetic coupler rodless cylinder sold by Guangzhou Nansha Chuangjia Machinery Parts Co., Ltd. The moving end of the magnetic guide cylinder 7 is fixedly connected to a connecting rod 8. The bottom end of the connecting rod 8 is fixedly connected to an arc-shaped clamp 9. An L-shaped limiting plate 10 is provided on the inner side of the U-shaped frame 3.
[0023] In a preferred embodiment, a control panel 11 is fixedly installed on one side wall of the U-shaped frame 3. The control panel 11 is electrically connected to multiple lifting cylinders 5. The control panel 11 controls the multiple lifting cylinders 5 to move synchronously, so that the magnetic guide cylinder 7 remains balanced after adjustment.
[0024] In a preferred embodiment, a lifting guide rail 12 is fixedly installed on the inner side wall of the U-shaped frame 3. A lifting groove 13 is opened at one end of the lifting guide rail 12. A guide slider 14 is slidably installed inside the lifting groove 13. One end of the guide slider 14 is fixedly installed on the outer side wall of the magnetic guide cylinder 7. When the magnetic guide cylinder 7 is adjusted, the guide slider 14 moves inside the lifting groove 13, making the magnetic guide cylinder 7 more stable when it is raised and lowered.
[0025] In a preferred embodiment, the height of the L-shaped limiting plate 10 is less than the thickness of the EVA foam, and the height of the L-shaped limiting plate 10 is the same as the thickness of the EVA foam to ensure that the core rolls smoothly and without tilting when rolling back and forth.
[0026] In a preferred embodiment, one end of the L-shaped limiting plate 10 penetrates the side wall of the U-shaped frame 3 and is fixedly connected to a toothed plate 15 disposed on the outside of the U-shaped frame 3. A gear 16 is meshed on the upper end of the toothed plate 15, and a rotating shaft 17 is disposed in the middle of the gear 16. A limiting protrusion 18 is fixedly disposed on the outer side wall of the rotating shaft 17. A limiting groove 19 is disposed at the connection between the gear 16 and the rotating shaft 17. During adjustment, the rotating shaft 17 drives the gear 16 to rotate. When the gear 16 rotates, the toothed plate 15 can drive the L-shaped limiting plate 10 to move, thereby realizing the adjustment of the position of the L-shaped limiting plate 10. In specific use, a scale line can be set on the inner side wall of the U-shaped frame 3 to facilitate the control of the positional accuracy of the L-shaped limiting plate 10.
[0027] In a preferred embodiment, a control box 20 is fixedly mounted on one end of the U-shaped frame 3, and one end of the rotating shaft 17 passes through the side wall of the control box 20 and is fixedly connected to a rotating handle 21. The end of the rotating shaft 17 away from the rotating handle 21 is threadedly connected to the control box 20. The control box 20 has a threaded hole that matches the rotating shaft 17. When the rotating shaft 17 rotates, the gear 16 rotates due to the action of the limiting protrusion 18. Since the rotating shaft 17 is threadedly connected to the control box 20, the limiting protrusion 18 will move along the limiting slide groove 19. When no adjustment is needed, the rotating shaft 17 will not move on its own due to the threaded connection.
[0028] The working principle of this utility model:
[0029] During use, adjust the position of the L-shaped limiting plate 10 according to the width of the EVA foam 22. To adjust, rotate the handle 21. Rotating the handle 21 drives the gear 16 via the shaft 17. The gear 16, in turn, moves the L-shaped limiting plate 10 via the toothed plate 15. After adjusting the position of the L-shaped limiting plate 10, lay the EVA foam 22 inside the U-shaped frame 3, ensuring the bottom and sidewalls of the EVA foam 22 are attached to the L-shaped limiting plate 10 and the inner wall of the U-shaped frame 3, thus limiting the position of the EVA foam 22. Place the core 23 inside the U-shaped frame 3, then open the lifting cylinder 5. The lifting cylinder 5 lowers the magnetic cylinder fixing seat 6 from... The magnetic guide cylinder 7 causes the arc-shaped clamp 9 to descend, locking onto the end of the core 23. Then, the magnetic guide cylinder 7 is opened, and it moves the arc-shaped clamp 9 and the core 23 via the connecting rod 8. The lower side wall of the core 23 contacts the upper surface of the EVA foam 22. Since there is adhesive on the upper surface of the EVA foam 22, it adheres to the core 23 as it moves. After the EVA foam 22 is wrapped, the magnetic guide cylinder 7 drives the core 23 to reset. The lifting cylinder 5 then lifts the arc-shaped clamp 9, separating it from the core 23. The wrapped core 23 can then be removed.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An auxiliary device for covering EVA foam roll cores, comprising a base (1), characterized in that: The upper surface of the base (1) is fixed with a bottom layer foam (2), and a U-shaped frame (3) is fixedly installed at the upper end of the bottom layer foam (2). Two mounting plates (4) are fixedly installed on both sides of the upper end of the U-shaped frame (3). A lifting cylinder (5) is installed on the mounting plate (4). The telescopic end of the lifting cylinder (5) passes through the mounting plate (4) and is fixedly connected to a magnetic cylinder fixing seat (6) located below the mounting plate (4). A magnetic guide rail cylinder (7) is installed between the two magnetic cylinder fixing seats (6). A connecting rod (8) is fixedly connected to the moving end of the magnetic guide rail cylinder (7). An arc-shaped clamp (9) is fixedly connected to the bottom end of the connecting rod (8). An L-shaped limiting plate (10) is provided on the inner side of the U-shaped frame (3).
2. The auxiliary device for covering EVA foam core according to claim 1, characterized in that: A control panel (11) is fixedly installed on one side wall of the U-shaped frame (3), and the control panel (11) is electrically connected to multiple lifting cylinders (5).
3. The auxiliary device for covering EVA foam core according to claim 1, characterized in that: A lifting guide rail (12) is fixedly installed on the inner side wall of the U-shaped frame (3). A lifting groove (13) is opened at one end of the lifting guide rail (12). A guide slider (14) is slidably installed inside the lifting groove (13). One end of the guide slider (14) is fixedly installed on the outer side wall of the magnetic guide rail cylinder (7).
4. The auxiliary device for covering EVA foam core according to claim 1, characterized in that: The height of the L-shaped limiting plate (10) is the same as the thickness of the EVA foam.
5. The auxiliary device for covering EVA foam core according to claim 1, characterized in that: One end of the L-shaped limiting plate (10) passes through the side wall of the U-shaped frame (3) and is fixedly connected to a toothed plate (15) located on the outside of the U-shaped frame (3). A gear (16) is meshed on the upper end of the toothed plate (15). A rotating shaft (17) is located in the middle of the gear (16). A limiting protrusion (18) is fixedly provided on the outer side wall of the rotating shaft (17). A limiting groove (19) is provided at the connection between the gear (16) and the rotating shaft (17).
6. The auxiliary device for covering EVA foam roll cores according to claim 5, characterized in that: A control box (20) is fixedly installed at one end of the U-shaped frame (3). One end of the rotating shaft (17) passes through the side wall of the control box (20) and is fixedly connected to a rotating handle (21). The end of the rotating shaft (17) away from the rotating handle (21) is threadedly connected to the control box (20). A threaded hole matching the rotating shaft (17) is provided on the control box (20).