EVA sheet rewinding device

Abstract

The utility model discloses an EVA (Ethylene Vinyl Acetate) sheet rewinding device, which belongs to the field of EVA sheet rewinding and comprises a working table, first support plates are arranged on the working table, a rewinding roller is arranged between a group of first support plates, a rewinding roller quick disassembly and assembly mechanism is arranged on the first support plates and the rewinding roller, and an anti-falling plate adjusting mechanism is arranged on the rewinding roller and a retention plate. A supporting column is installed at the bottom of the workbench, a rewinding roller driving mechanism is arranged on the workbench and the rewinding roller rapid dismounting and mounting mechanism, a protective shell is installed on one side of the workbench, a second supporting plate is installed on the workbench, and the rewinding roller driving mechanism comprises a rotating block and a rotating shaft which are installed on a set of connecting pieces respectively. The rotating block and the rotating shaft are rotationally mounted in the group of first supporting plates respectively; through cooperative use of the devices, rapid disassembly and assembly of the rewinding roller can be achieved, the rewinding device is suitable for rewinding of EVA sheets of different sizes, the EVA sheets can be prevented from falling off from the rewinding roller after the rewinding roller is disassembled, and storage and transportation of EVA coiled materials are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of EVA sheet rewinding technology, specifically to an EVA sheet rewinding device. Background Technology

[0002] EVA sheet (ethylene-vinyl acetate copolymer) is a multifunctional material widely used in many fields. An EVA sheet rewinding device is a piece of equipment used to wind up EVA sheets. It mainly consists of a worktable, rewinding rollers, and other components, and can rewind long EVA sheets into rolls, facilitating the transportation and storage of EVA sheets.

[0003] An investigation revealed that Chinese utility model patent CN220449228U discloses an antistatic EVA sheet rewinding device, comprising a fixed plate, a rewinding and collecting unit, an antistatic EVA sheet transmission unit, and a dust collection unit. A protective cover is fixedly connected to the upper surface of the fixed plate. The antistatic EVA sheet transmission unit is located inside the protective cover on the upper surface of the fixed plate. The dust collection unit is also located on the upper surface of the fixed plate. Support legs are fixedly connected to the four corners of the lower surface of the fixed plate. A discharge hole is provided on the right side surface of the protective cover, extending into the protective cover. A feed hole is provided on the left side surface of the protective cover. During rewinding, the device ensures the antistatic EVA sheet is flatter and does not affect the rewinding process. During rewinding, it also absorbs dust from the antistatic EVA sheet, reducing damage and ensuring its usability.

[0004] Although the aforementioned patent can remove wrinkles and dust from EVA sheets during the rewinding process by using a vacuum cleaner, vacuum pipe, and snap-fit ​​cylinder, the device is cumbersome to assemble and disassemble the rewinding roller, which is not conducive to unloading the EVA roll after rewinding. Furthermore, there is no corresponding fixation at both ends during the EVA sheet rewinding process, which makes it difficult to adapt to EVA sheets of different sizes. On the other hand, the EVA sheet is easy to fall off the rewinding roller after rewinding, which is not conducive to the storage and transportation of EVA sheets.

[0005] Therefore, this utility model provides an EVA sheet rewinding device to solve the above problems. Utility Model Content

[0006] This utility model provides an EVA sheet rewinding device, which aims to solve the problems mentioned in the background art. However, the device is cumbersome to assemble and disassemble the rewinding roller, which is not conducive to unloading the EVA roll after rewinding. Furthermore, the two ends are not properly secured during the EVA sheet rewinding process. On the one hand, it is difficult to adapt to EVA sheets of different sizes. On the other hand, the EVA sheet is easy to fall off the rewinding roller after rewinding, which is not conducive to the storage and transportation of EVA sheets.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an EVA sheet rewinding device, comprising a workbench, characterized in that: a first support plate is installed on the workbench, a rewinding roller is arranged between a group of the first support plates, a quick-release mechanism for the rewinding roller is provided on the first support plate and the rewinding roller, a retaining plate is adjustablely provided on the rewinding roller, an anti-detachment plate adjustment mechanism is provided on the rewinding roller and the retaining plate, a support column is installed at the bottom of the workbench, a rewinding roller drive mechanism is provided on the quick-release mechanism for the rewinding roller, a protective shell is installed on one side of the workbench, a second support plate is installed on the workbench, a rotation damper is installed on the second support plate, and a set of extrusion rollers is installed on the rotation damper.

[0008] As a preferred technical solution of this application, the quick disassembly and assembly mechanism for the rewinding roller includes a connector rotatably mounted on the first support plate, a disassembly and assembly block is provided inside the connector, the disassembly and assembly block is installed at the end of the rewinding roller, and an anti-detachment plate is detachably mounted on the connector.

[0009] As a preferred technical solution of this application, a snap-fit ​​component is installed on one side of the anti-detachment plate, a snap-fit ​​block is movably provided on the front side of the connector, the snap-fit ​​block is snapped into the snap-fit ​​component, a first support block is installed on the front side of the connector, a tension spring is installed on the first support block, a push rod is installed on the other end of the tension spring, the push rod is slidably disposed on the connector, and a connecting rod is rotatably installed on the snap-fit ​​block and the push rod.

[0010] As a preferred technical solution of this application, a guide rail is installed on the front side of the connector, a sliding sleeve is installed on the push rod, the sliding sleeve is slidably installed on the guide rail, a guide frame is installed on the connector, a guide sleeve is installed on the locking block, and the guide sleeve is slidably sleeved on the guide frame.

[0011] As a preferred technical solution of this application, the anti-detachment plate adjustment mechanism includes an adjustment sleeve that is slidably sleeved on the rewinding roller, a positioning groove is provided on the surface of the rewinding roller, a positioning block is installed on the inner wall of the adjustment sleeve, the positioning block is slidably installed in the positioning groove, and a threaded groove is provided through the rewinding roller and the adjustment sleeve, and a fixing bolt is screwed into the threaded groove.

[0012] As a preferred technical solution of this application, the rewinding roller drive mechanism includes a rotating block and a rotating shaft respectively mounted on a set of the connecting members, and the rotating block and the rotating shaft are respectively rotatably mounted in a set of the first support plates.

[0013] As a preferred technical solution of this application, a first pulley is installed at the end of the rotating shaft, a lower support plate is installed at the bottom of the workbench, a drive motor is installed on the lower support plate, a second pulley is installed at the output end of the drive motor, and belts are movably connected to the first pulley and the second pulley.

[0014] This invention allows for quick installation of the rewinding roller by first pulling the push rod upward to lengthen the tension spring and placing the disassembly blocks at both ends of the rewinding roller inside the connector. Then, the anti-detachment plate is inserted into the connector, and the push rod is released. A set of locking blocks are inserted into the locking component, which quickly completes the installation of the rewinding roller. Pushing the push rod upward will drive a set of locking blocks to be pulled out of the locking component to release the anti-detachment plate. Then, the anti-detachment plate can be pulled out directly, and the disassembly blocks can be taken out directly from the connector to complete the quick disassembly of the rewinding roller. The operation is quite convenient.

[0015] This invention allows for the adjustment of the position of the retaining plate by sliding the adjusting sleeve on the rewinding roller. After the position of the retaining plate is adjusted, the fixing bolts are screwed into the corresponding screw grooves to fix the retaining plate. This allows it to be adapted to the rewinding of EVA sheets of different sizes. After the rewinding roller is removed, it can prevent the EVA sheets from falling off the rewinding roller, which is beneficial for the storage and transportation of EVA rolls. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of an EVA sheet rewinding device;

[0017] Figure 2 This is a side view of the EVA sheet rewinding device.

[0018] Figure 3 A schematic diagram of the rewinding roller and retaining plate structure of an EVA sheet rewinding device;

[0019] Figure 4 A schematic diagram of the connectors and disassembly blocks of an EVA sheet rewinding device;

[0020] Figure 5 A schematic diagram of the fixing plate and adjusting sleeve structure of the EVA sheet rewinding device;

[0021] Figure 6 This is a schematic diagram of the belt and protective shell structure of an EVA sheet rewinding device.

[0022] In the diagram: 1. Workbench; 2. Support plate No. 1; 3. Quick assembly / disassembly mechanism for rewinding roller; 31. Connecting piece; 32. Assembly / disassembly block; 33. Anti-detachment plate; 34. Snap-fit ​​piece; 35. Snap-fit ​​block; 36. Support block No. 1; 37. Tension spring; 38. Push rod; 39. Connecting rod; 310. Guide rail; 311. Sliding sleeve; 312. Guide frame; 313. Guide sleeve; 4. Rewinding roller; 5. Fixing plate; 6. Anti-detachment plate Adjustment mechanism; 61. Adjustment sleeve; 62. Positioning groove; 63. Positioning block; 64. Screw groove; 65. Fixing bolt; 7. Support column; 8. Rewinding roller drive mechanism; 81. Rotating block; 82. Rotating shaft; 83. No. 1 pulley; 84. Lower support plate; 85. Drive motor; 86. No. 2 pulley; 87. Belt; 9. Protective shell; 10. No. 2 support plate; 11. Rotation damper; 12. Extrusion roller group. Detailed Implementation

[0023] 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. Example

[0024] like Figure 1-6As shown, this utility model provides an EVA sheet rewinding device, including a workbench 1, a first support plate 2 installed on the workbench 1, a rewinding roller 4 arranged between a group of first support plates 2, a quick-release mechanism 3 for the rewinding roller 4 on the first support plate 2 and the rewinding roller 4, an adjustable fixing plate 5 on the rewinding roller 4, an anti-detachment plate adjustment mechanism 6 on the rewinding roller 4 and the fixing plate 5, a support column 7 installed at the bottom of the workbench 1, a rewinding roller drive mechanism 8 on the workbench 1 and the quick-release mechanism 3, a protective shell 9 installed on one side of the workbench 1, a second support plate 10 installed on the workbench 1, a rotation damper 11 installed on the second support plate 10, and a compression roller group 12 installed on the rotation damper 11; the quick-release mechanism 3 allows for quick installation of the rewinding roller 4, making operation convenient. Next, based on the size of the EVA sheet, the position of a set of fixing plates 5 is adjusted and fixed through the anti-detachment plate adjustment mechanism 6, thus adapting to the rewinding of EVA sheets of different sizes. This prevents the EVA sheet from falling off the rewinding roller 4 after it is removed. When it is necessary to rewind the EVA sheet, the EVA sheet to be rewound is passed between a set of extrusion rollers 12 and wound onto the rewinding roller 4. The rewinding roller 4 is driven to rotate by the rewinding roller drive mechanism 8. The rotation of the rewinding roller 4 will rewind the EVA sheet. During the rewinding process, the EVA sheet will be squeezed by the extrusion rollers 12. On the one hand, this can achieve the effect of wrinkle removal of the EVA sheet. On the other hand, the rotation of the extrusion rollers 12 will drive the rotation damper 11 to rotate. The rotation resistance of the rotation damper 11 can straighten the EVA sheet during rewinding, making the EVA sheet fit neatly during rewinding.

[0025] Specifically, this is to enable the quick assembly and disassembly of the rewinding roller 4. The quick assembly / disassembly mechanism 3 for the rewinding roller includes a connector 31 rotatably mounted on a first support plate 2. A disassembly / assembly block 32 is installed inside the connector 31 and is mounted at the end of the rewinding roller 4. An anti-detachment plate 33 is detachably mounted on the connector 31. A snap-fit ​​component 34 is mounted on one side of the anti-detachment plate 33. A snap-fit ​​block 35 is movably mounted on the front side of the connector 31 and snaps into the snap-fit ​​component 34. A first support block 36 is mounted on the front side of the connector 31. A tension spring 37 is mounted on the first support block 36. A push rod 38 is mounted on the other end of the tension spring 37 and slides on the connector 31. A connecting rod 39 is rotatably mounted on the snap-fit ​​block 35 and the push rod 38. The push rod 38 is pulled upwards beforehand to stretch the tension spring 37, and the disassembly / assembly blocks 32 at both ends of the rewinding roller 4 are placed inside the connector 31. Then, the anti-detachment plate 33 is inserted into the connector 31, and the push rod 38 is released. Under the reset action of the tension spring 37, the push rod 38 will move downward. The downward movement of the push rod 38 will cause the connecting rod 39 to reverse. The reverse and closing of a set of connecting rods 39 will drive a set of locking blocks 35 to move and approach each other, so that a set of locking blocks 35 can be inserted into the locking piece 34. At this time, the disassembly block 32 can be fixed, and the installation of the rewinding roller 4 can be completed quickly.

[0026] Pushing the push rod 38 upward will cause the connecting rod 39 to rotate. The rotation and opening of the connecting rod 39 will drive a set of locking blocks 35 to move away from each other, so that the set of locking blocks 35 can be pulled out from the locking member 34. At this time, the fixation of the anti-detachment plate 33 can be released. Then, the anti-detachment plate 33 can be pulled out directly, and the disassembly block 32 can be taken out directly from the connector 31 to complete the quick disassembly of the rewinding roller 4.

[0027] Furthermore, to guide the movement of the locking block 35 and the push rod 38, a guide rail 310 is installed on the front side of the connector 31, a sliding sleeve 311 is installed on the push rod 38, and the sliding sleeve 311 is slidably mounted on the guide rail 310. A guide frame 312 is installed on the connector 31, and a guide sleeve 313 is installed on the locking block 35, with the guide sleeve 313 slidably fitted onto the guide frame 312. The sliding of the guide rail 310 within the sliding sleeve 311 guides the movement of the push rod 38, ensuring that the push rod 38 can only slide along the guide rail 310. The sliding of the guide sleeve 313 within the guide frame 312 guides the movement of the locking block 35, ensuring that the locking block 35 can only slide along the guide frame 312.

[0028] Specifically, to adjust the position of the retaining plate 5 and adapt to the retention of EVA sheets of different sizes, the anti-detachment plate adjustment mechanism 6 includes an adjusting sleeve 61 that is slidably sleeved on the rewinding roller 4. The rewinding roller 4 has a positioning groove 62 on its surface, and a positioning block 63 is installed on the inner wall of the adjusting sleeve 61. The positioning block 63 is slidably installed in the positioning groove 62. A threaded groove 64 is opened through the rewinding roller 4 and the adjusting sleeve 61, and a fixing bolt 65 is screwed into the threaded groove 64. In the initial stage, the fixing bolt 65 is not screwed into the threaded groove 64. Pushing the retaining plate 5 and sliding the adjusting sleeve 61 on the rewinding roller 4 can adjust the position of the retaining plate 5. After the position of the retaining plate 5 is adjusted, the fixing bolt 65 is screwed into the corresponding threaded groove 64 to fix the retaining plate 5. This can adapt to the rewinding of EVA sheets of different sizes and prevent the EVA sheets from falling off the rewinding roller 4 after it is removed.

[0029] Specifically, to drive the rewinding roller 4 to rotate and rewind the EVA sheet, the rewinding roller drive mechanism 8 includes a rotating block 81 and a rotating shaft 82 respectively mounted on a set of connecting parts 31. The rotating block 81 and the rotating shaft 82 are rotatably mounted in a set of first support plates 2. A first pulley 83 is mounted at the end of the rotating shaft 82. A lower support plate 84 is mounted at the bottom of the worktable 1. A drive motor 85 is mounted on the lower support plate 84. A second pulley 86 is mounted at the output end of the drive motor 85. A belt 87 is movably sleeved on the first pulley 83 and the second pulley 86. The rotation of the drive motor 85 will drive the belt 87 to rotate, which in turn will drive the second pulley 86 to rotate. The rotation of the second pulley 86 will drive the belt 87 to drive the first pulley 83 to rotate, which will drive the rotating shaft 82 to rotate. The rotation of the rotating shaft 82 will drive the rewinding roller 4 and the rotating block 81 to rotate, and the rotation of the rewinding roller 4 will rewind the EVA sheet.

[0030] Working principle: In the initial stage, the anti-detachment plate 33 is fixedly inserted into the connector 31. When it is necessary to install the rewinding roller 4 on the connector 31, push the push rod 38 upward. Pushing the push rod 38 upward will drive the connecting rod 39 to rotate. The rotation and opening of a set of connecting rods 39 will drive a set of locking blocks 35 to move away from each other, so that a set of locking blocks 35 can be pulled out from the locking member 34. At this time, the fixation of the anti-detachment plate 33 can be released, and the anti-detachment plate 33 can be directly pulled out. The disassembly blocks 32 at both ends of the rewinding roller 4 are placed in the connector 31. Then, the anti-detachment plate 33 is inserted into the connector 31 and the push rod 38 is released. Under the reset action of the tension spring 37, the push rod 38 will move downward. The downward movement of the push rod 38 will cause the connecting rod 39 to reverse. The reversal and closing of a set of connecting rods 39 will drive a set of locking blocks 35 to move and approach each other, so that a set of locking blocks 35 can be inserted into the locking piece 34. At this time, the disassembly block 32 can be fixed, and the installation of the rewinding roller 4 can be completed quickly and the operation is relatively convenient. Then, the position of a set of fixing plates 5 is adjusted according to the size of the EVA sheet. In the initial stage, the fixing bolt 65 is not screwed into the screw groove 64. Pushing the fixing plate 5, the adjusting sleeve 61 slides on the rewinding roller 4 to adjust the position of the fixing plate 5. After the position of the fixing plate 5 is adjusted, the fixing bolt 65 is screwed into the corresponding screw groove 64 to fix the fixing plate 5. This can adapt to the rewinding of EVA sheets of different sizes and prevent the EVA sheet from falling off the rewinding roller 4 after it is removed. When EVA sheets need to be rewound, the EVA sheet to be rewound is passed between a set of extrusion rollers 12 and wound onto the rewinding roller 4. The drive motor 85 is started, and the rotation of the drive motor 85 drives the belt 87 to rotate. The rotation of the belt 87 drives the second pulley 86 to rotate. The rotation of the second pulley 86 drives the belt 87 to drive the first pulley 83 to rotate. The rotation of the first pulley 83 drives the rotating shaft 82 to rotate. The rotation of the rotating shaft 82 drives the rewinding roller 4 and the rotating block 81 to rotate. The rotation of the rewinding roller 4 rewinds the EVA sheet. During the rewinding process, the EVA sheet is squeezed by the extrusion rollers 12. On the one hand, this can remove wrinkles from the EVA sheet. On the other hand, the rotation of the extrusion rollers 12 drives the rotation damper 11 to rotate. The rotation resistance of the rotation damper 11 can straighten the EVA sheet during rewinding, making the EVA sheet fit neatly during rewinding.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An EVA sheet rewinding device comprising a workbench (1), characterized in that: A first support plate (2) is installed on the workbench (1). A rewinding roller (4) is arranged between a group of the first support plates (2). A quick disassembly and assembly mechanism (3) for the rewinding roller is provided on the first support plate (2) and the rewinding roller (4). A retaining plate (5) is adjustablely provided on the rewinding roller (4). An anti-detachment plate adjustment mechanism (6) is provided on the rewinding roller (4) and the retaining plate (5). A support column (7) is installed at the bottom of the workbench (1). A rewinding roller drive mechanism (8) is provided on the quick disassembly and assembly mechanism (3) for the workbench (1). A protective shell (9) is installed on one side of the workbench (1). A second support plate (10) is installed on the workbench (1). A rotation damper (11) is installed on the second support plate (10). A set of extrusion rollers (12) is installed on the rotation damper (11).

2. The EVA sheet rewinding device according to claim 1, characterized in that: The quick assembly and disassembly mechanism (3) for the rewinding roller includes a connector (31) rotatably mounted on the first support plate (2). The connector (31) contains a disassembly block (32), which is installed at the end of the rewinding roller (4). An anti-detachment plate (33) is detachably mounted on the connector (31).

3. The EVA sheet rewinding device according to claim 2, characterized in that: A snap-fit ​​component (34) is installed on one side of the anti-detachment plate (33). A snap-fit ​​block (35) is movably provided on the front side of the connector (31). The snap-fit ​​block (35) is snapped into the snap-fit ​​component (34). A first support block (36) is installed on the front side of the connector (31). A tension spring (37) is installed on the first support block (36). A push rod (38) is installed on the other end of the tension spring (37). The push rod (38) is slidably disposed on the connector (31). A connecting rod (39) is rotatably installed on the snap-fit ​​block (35) and the push rod (38).

4. The EVA sheet rewinding device according to claim 3, characterized in that: A guide rail (310) is installed on the front side of the connector (31), a sliding sleeve (311) is installed on the push rod (38), the sliding sleeve (311) is slidably installed on the guide rail (310), a guide frame (312) is installed on the connector (31), and a guide sleeve (313) is installed on the locking block (35), the guide sleeve (313) is slidably sleeved on the guide frame (312).

5. The EVA sheet rewinding device according to claim 1, characterized in that: The anti-detachment plate adjustment mechanism (6) includes an adjustment sleeve (61) that is slidably sleeved on the rewinding roller (4). The rewinding roller (4) has a positioning groove (62) on its surface. A positioning block (63) is installed on the inner wall of the adjustment sleeve (61). The positioning block (63) is slidably installed in the positioning groove (62). A threaded groove (64) is provided through the rewinding roller (4) and the adjustment sleeve (61). A fixing bolt (65) is screwed into the threaded groove (64).

6. The EVA sheet rewinding device according to claim 2, characterized in that: The rewinding roller drive mechanism (8) includes a rotating block (81) and a rotating shaft (82) respectively mounted on a set of the connecting members (31), and the rotating block (81) and the rotating shaft (82) are rotatably mounted in a set of the first support plate (2).

7. The EVA sheet rewinding device according to claim 6, characterized in that: The rotating shaft (82) is provided with a first pulley (83) at one end, the workbench (1) is provided with a lower supporting plate (84) at the bottom, the lower supporting plate (84) is provided with a driving motor (85), the driving motor (85) is provided with a second pulley (86) at the output end, and the first pulley (83) and the second pulley (86) are movably sleeved with a belt (87).

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