Column roll changing and unwinding device of plastic extrusion and lamination composite unit
By designing connecting columns, clamping devices, and lateral moving devices, the problem of cumbersome disassembly and assembly of traditional roll changing and unwinding devices is solved, realizing automated operation and improving work efficiency and processing quality.
Patent Information
- Application Number
- CN202520082777.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Traditional roll changing and unwinding devices involve cumbersome steps when disassembling and assembling take-up or unwinding rolls, requiring a lot of manual operation, which increases workload and reduces efficiency, and is prone to skewing, resulting in a decline in processing quality.
The design incorporates connecting columns, clamping devices, and lateral movement devices. Through motor drive and worm gear structure, it achieves automated disassembly and precise assembly, reducing manual operation and ensuring smooth replacement and stable unwinding of the roll material.
It enables automated disassembly and precise assembly of take-up or unload rolls, reducing workload, improving efficiency, and preventing a decline in processing quality and reduced equipment usability.
Smart Images

Figure CN223836693U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of roll changing and unwinding devices, and in particular to a roll changing and unwinding device for the column of a plastic extrusion coating and laminating unit. Background Technology
[0002] The roll changing and unwinding device on the column of the laminating machine is a crucial component, used for roll replacement and unwinding. Through coordinated operation, it ensures smooth roll replacement and stable unwinding, guaranteeing the normal operation of the laminating machine and the quality of the lamination process.
[0003] In the existing technology, traditional roll changing and unwinding devices usually require cumbersome steps and a lot of manual operation when disassembling take-up or unwinding rolls. This directly increases the workload of workers and indirectly reduces work efficiency. In the existing technology, when assembling take-up or unwinding rolls, some manually placed take-up or unwinding rolls often become skewed, which directly leads to a decrease in the quality of subsequent processing and indirectly reduces the practicality of the device. Utility Model Content
[0004] The purpose of this utility model is to provide a column-mounted roll changing and unwinding device for a plastic extrusion coating and laminating unit. This device solves the problem that traditional roll changing and unwinding devices often require cumbersome steps and a lot of manual operation when disassembling the take-up or unwinding rolls. It avoids a significant increase in the workload of workers and reduces work efficiency. It also solves the problem that some roll changing and unwinding devices often result in the manually placed take-up or unwinding rolls being skewed during assembly, thus preventing a decline in the quality of subsequent processing and reducing the practicality of the device.
[0005] To achieve the above objectives, a column roll changing and unwinding device for a plastic extrusion coating and laminating unit is provided, comprising a first fixing plate, a unwinding roll being provided on the side of the first fixing plate, and a clamping device being provided at the other end of the unwinding roll;
[0006] The clamping device has a second fixing plate on its side, a moving device below the second fixing plate, and a first motor on the other side of the first fixing plate.
[0007] According to the aforementioned plastic extrusion coating and laminating unit column winding and unwinding device, a support column is fixedly connected to the lower part of the first motor, a first connecting rod is fixedly connected to the output end of the first motor, a first bearing is fixedly connected to the outer surface of the first connecting rod, and a connecting column is fixedly connected to the other end of the first connecting rod.
[0008] According to the aforementioned plastic extrusion coating composite unit column winding and unwinding device, a wedge-shaped block protrudes from the outer surface of the connecting column, a second connecting rod is fixedly connected to the side of the wedge-shaped block, a third connecting rod is fixedly connected to the side of the second connecting rod, a locking block is fixedly connected to the other side of the third connecting rod, and a spring rod is fixedly connected to the other side of the second connecting rod.
[0009] According to the aforementioned plastic extrusion coating composite unit column rewinding and unwinding device, a connecting ring is slidably connected to the outer surface of the connecting column, and a handle is fixedly connected to the side of the connecting ring.
[0010] According to the aforementioned plastic extrusion coating composite unit column winding and unwinding device, the clamping device is provided with a worm gear inside, a worm is meshed with the side of the worm gear, a knob is fixedly connected above the worm, and a fourth bearing is fixedly connected to the outer surface of the clamping device.
[0011] According to the aforementioned plastic extrusion coating composite unit column winding and unwinding device, a second bearing is fixedly connected to the outer surface of the worm gear, a third bearing is fixedly connected to the outer surface of the worm wheel, and the outer surface of the third bearing is fixedly connected to the inner wall of the clamping device.
[0012] According to the aforementioned plastic extrusion coating composite unit column winding and unwinding device, a spiral groove is provided on the side of the worm gear, a connecting block is slidably connected to the surface of the spiral groove, and an arc-shaped block is fixedly connected to the side of the connecting block.
[0013] According to the aforementioned plastic extrusion coating composite unit column roll changing and unwinding device, the moving device is equipped with a second motor inside, the output end of the second motor is fixedly connected to a threaded rod, the outer surface of the threaded rod is threaded with a nut, a fourth connecting rod is fixedly connected above the nut, and a second fixing plate is fixedly connected above the fourth connecting rod.
[0014] This utility model has the following beneficial effects:
[0015] 1. Compared with the existing technology, the column-mounted roll changing and unwinding device of the plastic extrusion coating composite unit, by setting up connecting columns, clamping devices and lateral moving devices, enables the disassembly of the receiving roll or the unwinding roll, thereby avoiding the problem of a significant increase in the workload of the workers and the problem of reduced work efficiency.
[0016] 2. Compared with the prior art, the column roll changing and unwinding device of this plastic extrusion coating composite unit, by setting up a transverse moving device, a clamping device and a second fixed plate, enables the nut to move through the fourth connecting rod to drive the second fixed plate, thereby allowing the unwinding roll to be precisely assembled, thus avoiding the problem of reduced quality in subsequent processing and the problem of reduced practicality of the device.
[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0019] Figure 1 This is a three-dimensional structural diagram of a column-mounted unwinding device for a plastic extrusion coating and laminating unit according to the present invention.
[0020] Figure 2 This is a three-dimensional half-sectional view of the first fixed plate of the column winding and unwinding device of a plastic extrusion coating composite unit according to the present invention.
[0021] Figure 3 This is a three-dimensional half-sectional view of the clamping device of the column unwinding device of a plastic extrusion coating composite unit according to the present invention;
[0022] Figure 4 This is a three-dimensional half-sectional view of the transverse moving device of the column changing and unwinding device of a plastic extrusion coating composite unit according to the present invention.
[0023] Legend:
[0024] 1. First fixed plate; 2. Feed roll; 3. Clamping device; 4. Second fixed plate; 5. Moving device; 6. First motor; 7. Support column; 8. First connecting rod; 9. First bearing; 10. Connecting column; 11. Wedge block; 12. Second connecting rod; 13. Third connecting rod; 14. Locking block; 15. Spring rod; 16. Connecting ring; 17. Handle; 18. Worm gear; 19. Worm; 20. Knob; 21. Second bearing; 22. Third bearing; 23. Spiral groove; 24. Connecting block; 25. Arc block; 26. Fourth bearing; 27. Second motor; 28. Threaded rod; 29. Nut; 30. Fourth connecting rod. Detailed Implementation
[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0026] Reference Figure 1-4 This utility model embodiment provides a plastic extrusion coating and laminating unit column roll changing and unwinding device, which includes a first fixing plate 1, a unwinding roll 2 is provided on the side of the first fixing plate 1, and a clamping device 3 is provided at the other end of the unwinding roll 2.
[0027] A second fixing plate 4 is provided on the side of the clamping device 3, a moving device 5 is provided below the second fixing plate 4, a first motor 6 is provided on the other side of the first fixing plate 1, a support column 7 is fixedly connected below the first motor 6, a first connecting rod 8 is fixedly connected to the output end of the first motor 6, a first bearing 9 is fixedly connected to the outer surface of the first connecting rod 8, and a connecting column 10 is fixedly connected to the other end of the first connecting rod 8.
[0028] A wedge-shaped block 11 protrudes from the outer surface of the connecting post 10. A second connecting rod 12 is fixedly connected to the side of the wedge-shaped block 11. A third connecting rod 13 is fixedly connected to the side of the second connecting rod 12. A locking block 14 is fixedly connected to the other side of the third connecting rod 13. A spring rod 15 is fixedly connected to the other side of the second connecting rod 12. A connecting ring 16 is slidably connected to the outer surface of the connecting post 10. A handle 17 is fixedly connected to the side of the connecting ring 16.
[0029] The clamping device 3 has a worm gear 18 inside, a worm 19 meshing with the side of the worm gear 18, a knob 20 fixedly connected to the top of the worm 19, a fourth bearing 26 fixedly connected to the outer surface of the clamping device 3, a second bearing 21 fixedly connected to the outer surface of the worm 19, a third bearing 22 fixedly connected to the outer surface of the worm gear 18, and the outer surface of the third bearing 22 fixedly connected to the inner wall of the clamping device 3. A spiral groove 23 is opened on the side of the worm gear 18, a connecting block 24 is slidably connected to the surface of the spiral groove 23, and an arc-shaped block 25 is fixedly connected to the side of the connecting block 24.
[0030] The mobile device 5 is equipped with a second motor 27. The output end of the second motor 27 is fixedly connected to a threaded rod 28. The outer surface of the threaded rod 28 is threaded with a nut 29. A fourth connecting rod 30 is fixedly connected above the nut 29. A second fixing plate 4 is fixedly connected above the fourth connecting rod 30.
[0031] The above structure, through the connection post 10 and the clamping device 3, allows for the following when disassembling the take-up or unload roll 2: first, push the handle 17 to move the connecting ring 16; under the action of the wedge block 11, the connecting ring 16 can drive the wedge block 11 to move longitudinally; a second connecting rod 12 is fixedly connected to the lower part of the wedge block 11, allowing the second connecting rod 12 to drive the third connecting rod 13 to move longitudinally; and a locking block 14 is fixedly connected to the side of the third connecting rod 13, allowing the locking block 14 to disengage from the locking groove inside the unload roll 2. Then, start the second motor 27, which can drive the threaded... The rod 28 rotates, and the groove above the threaded rod 28 allows the nut 29 to move via the fourth connecting rod 30, which in turn moves the second fixed plate 4. The knob 20 is then rotated, causing the worm gear 19 to rotate. The worm gear 19 meshes with the worm wheel 18, which in turn rotates the spiral groove 23. The groove on the side of the clamping device 3 allows the connecting block 24 to move the arc-shaped block 25, thus allowing the take-up or unload roll 2 to be disassembled. This avoids a significant increase in the workload of workers and prevents a decrease in work efficiency.
[0032] By setting up the lateral moving device 5 and the clamping device 3, when it is necessary to assemble the take-up roll or the unload roll 2, the knob 20 can be turned first, so that the knob 20 can drive the worm gear 19 to rotate. The worm gear 19 is meshed with the worm wheel 18, so that the worm wheel 18 can drive the spiral groove 23 to rotate. Under the action of the sliding groove opened on the side of the clamping device 3, the connecting block 24 can drive the arc block 25 to move, thereby clamping the unload roll 2. Then, the second motor 27 is started, so that the second motor 27 can drive the threaded rod 28 to rotate. Under the action of the sliding groove opened on the threaded rod 28, the nut 29 can drive the second fixing plate 4 to move through the fourth connecting rod 30, thereby enabling the unload roll 2 to be accurately assembled, thus avoiding the problem of reduced quality in subsequent processing and the problem of reduced practicality of the device.
[0033] Working principle: When it is necessary to disassemble the take-up roll or unload roll 2 of the plastic extrusion coating laminating unit, the handle 17 can be pushed first to move the connecting ring 16. Under the action of the wedge block 11, the connecting ring 16 can drive the wedge block 11 to move longitudinally. A second connecting rod 12 is fixedly connected to the lower part of the wedge block 11, so that the second connecting rod 12 can drive the third connecting rod 13 to move longitudinally. A locking block 14 is fixedly connected to the side of the third connecting rod 13, so that the locking block 14 can disengage from the locking groove opened inside the unload roll 2. The second motor 27 is then started, which drives the threaded rod 28 to rotate. Under the action of the groove opened above the threaded rod 28, the nut 29 can drive the second fixed plate 4 to move through the fourth connecting rod 30. Then, by turning the knob 20, the knob 20 can drive the worm 19 to rotate. The worm 19 is meshed with the worm wheel 18, which can drive the spiral groove 23 to rotate. Under the action of the groove opened on the side of the clamping device 3, the connecting block 24 can drive the arc block 25 to move.
[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A column-mounted unwinding device for a plastic extrusion coating and laminating unit, characterized in that, Includes a first fixing plate (1), a feeding roll (2) is provided on the side of the first fixing plate (1), and a clamping device (3) is provided at the other end of the feeding roll (2); The clamping device (3) has a second fixing plate (4) on its side, a moving device (5) is provided below the second fixing plate (4), and a first motor (6) is provided on the other side of the first fixing plate (1).
2. The column winding and unwinding device for a plastic extrusion coating composite unit according to claim 1, characterized in that, A support column (7) is fixedly connected to the bottom of the first motor (6), a first connecting rod (8) is fixedly connected to the output end of the first motor (6), a first bearing (9) is fixedly connected to the outer surface of the first connecting rod (8), and a connecting column (10) is fixedly connected to the other end of the first connecting rod (8).
3. The column winding and unwinding device for a plastic extrusion coating composite unit according to claim 2, characterized in that, The outer surface of the connecting column (10) has a wedge-shaped block (11) protruding from it. A second connecting rod (12) is fixedly connected to the side of the wedge-shaped block (11). A third connecting rod (13) is fixedly connected to the side of the second connecting rod (12). A locking block (14) is fixedly connected to the other side of the third connecting rod (13). A spring rod (15) is fixedly connected to the other side of the second connecting rod (12).
4. The column winding and unwinding device for a plastic extrusion coating composite unit according to claim 2, characterized in that, A connecting ring (16) is slidably connected to the outer surface of the connecting post (10), and a handle (17) is fixedly connected to the side of the connecting ring (16).
5. The column unwinding and rewinding device for a plastic extrusion coating composite unit according to claim 1, characterized in that, The clamping device (3) is provided with a worm gear (18) inside, and a worm (19) is meshed with the side of the worm gear (18). A knob (20) is fixedly connected above the worm (19), and a fourth bearing (26) is fixedly connected to the outer surface of the clamping device (3).
6. The column winding and unwinding device for a plastic extrusion coating composite unit according to claim 5, characterized in that, The outer surface of the worm (19) is fixedly connected to a second bearing (21), and the outer surface of the worm wheel (18) is fixedly connected to a third bearing (22). The outer surface of the third bearing (22) is fixedly connected to the inner wall of the clamping device (3).
7. The column winding and unwinding device for a plastic extrusion coating composite unit according to claim 5, characterized in that, The worm gear (18) has a spiral groove (23) on its side, and a connecting block (24) is slidably connected to the surface of the spiral groove (23). An arc-shaped block (25) is fixedly connected to the side of the connecting block (24).
8. The column rewinding and unwinding device for a plastic extrusion coating composite unit according to claim 1, characterized in that, The mobile device (5) is equipped with a second motor (27), and the output end of the second motor (27) is fixedly connected to a threaded rod (28). The outer surface of the threaded rod (28) is threaded with a nut (29). A fourth connecting rod (30) is fixedly connected above the nut (29), and a second fixing plate (4) is fixedly connected above the fourth connecting rod (30).