Self-tensioning type winding device for acrylic fabric production and tensioning method thereof

Abstract

The invention relates to the technical field of acrylic fabric production winding devices, and provides a self-tensioning type acrylic fabric production winding device and a tensioning method thereof.The self-tensioning type acrylic fabric production winding device comprises a base, the top of the base is fixedly connected with a tensioning adjusting mechanism, and the tensioning adjusting mechanism comprises a first frame plate fixedly installed at the top of the base; the outer wall of the first frame plate is fixedly connected with a first motor, an output shaft of the first motor is fixedly connected with a threaded rod through a coupler, and the outer wall of the threaded rod is movably connected with a movable block. By starting a first motor, a threaded rod rotates to drive a movable block to move downwards, a first frame plate fixedly connected to one side of a bearing plate moves downwards, a first pressing roller moves downwards and presses acrylic fabric downwards, the acrylic fabric is tightened, and the effect that the winding tension degree is conveniently adjusted according to the actual material thickness difference of the fabric is achieved; and the winding processing quality of the acrylic fabric is improved.

Description

Technical Field

[0001] The invention relates to the technical field of acrylic fabric production winding devices, and in particular to a self-tensioning winding device for acrylic fabric production and a tensioning method thereof. Background Art

[0002] Acrylic fabrics are widely used in the textile industry for their excellent properties, such as crispness and wrinkle resistance, good warmth retention, and strong light resistance. In the production process of acrylic fabrics, winding is a key link. In the whole process of acrylic fabric production, the winding link is the key hub connecting fabric manufacturing and subsequent applications. The winding device for acrylic fabric production is the core equipment in this link. In the actual production process, the newly formed acrylic fabric is in the form of a continuous strip, which is soft and long, making it difficult to store and transport directly. The winding device uses a precise internal mechanical structure and intelligent control system to tightly wind the fabric layer by layer on the winding shaft according to the set tension and winding method, eventually forming a regular and tight cloth roll. These cloth rolls are not only convenient for stacking and storage in the warehouse, saving a lot of storage space, but also facilitate loading and unloading and handling during subsequent transportation;

[0003] Existing acrylic fabric winding devices fail to adjust the winding tension based on the thickness of the fabric. This can lead to inconsistent tension during the winding process, affecting the fabric's flatness and quality. Excessive tension can stretch the fabric, altering its physical properties or even causing it to break. Too little tension can make the wound fabric too loose, making it prone to deformation and scattering during transportation and storage. Summary of the Invention

[0004] The purpose of the present invention is to provide a self-tensioning winding device for acrylic fabric production and a tensioning method thereof, so as to solve the defect that the existing winding device for acrylic fabric production cannot adjust the winding tension according to the actual material thickness difference of the fabric.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a self-tensioning acrylic fabric production winding device, comprising a base;

[0006] The top of the base is fixedly connected to a tensioning adjustment mechanism, and the tensioning adjustment mechanism includes a first frame plate fixedly mounted on the top of the base, an outer wall of the first frame plate is fixedly connected to a first motor, an output shaft of the first motor is fixedly connected to a threaded rod through a coupling, an outer wall of the threaded rod is movably connected to a movable block, a threaded groove is provided inside the movable block, a side of the movable block is fixedly connected to a receiving plate, and an outer wall of the receiving plate is fixedly connected to the first frame plate;

[0007] An auxiliary adjustment mechanism is installed on the outer wall of the movable block, and the auxiliary adjustment mechanism includes a first rack fixedly installed on the outer wall of the movable block, the outer wall of the first rack is movably connected to a gear, the inner wall of the gear is fixedly connected to a movable shaft, the outer wall of the gear is movably connected to a second rack, the outer wall of the second rack is fixedly connected to an L-shaped connecting plate, and the auxiliary adjustment mechanism also includes a second frame plate fixedly installed on the top of the base.

[0008] Preferably, the first frame plate is movably connected to a first rotating shaft inside, a first pressure roller is fixedly connected to an outer wall of the first rotating shaft, a guide rod is fixedly connected to the top of the first frame plate, and a movable groove is provided inside the first frame plate.

[0009] Preferably, the threaded rod is threadedly connected to the movable block through a threaded groove, the receiving plate forms a sliding structure with the first frame plate through the movable groove, the guide rod forms a sliding structure with the first frame plate, and the first pressure roller forms a rotating structure with the first rotating shaft and the first frame plate.

[0010] Preferably, the outer wall of the L-shaped connecting plate is fixedly connected to the second frame plate, the interior of the second frame plate is movably connected to the second rotating shaft, the outer wall of the second rotating shaft is fixedly connected to the second pressure roller, the outer wall of the second frame plate is fixedly connected to the guide plate, the interior of the second frame plate is provided with a guide groove, and the interior of the second frame plate is provided with a sliding groove.

[0011] Preferably, the first rack is meshed with a gear, and the gear is meshed with a second rack.

[0012] Preferably, the second frame plate forms a rotating structure with the second pressing roller via a second rotating shaft, and the guide plate forms a sliding structure with the second frame plate via a guide groove.

[0013] Preferably, the gear forms a rotating structure with the second frame plate through a movable shaft, and the L-shaped connecting plate forms a sliding structure with the second frame plate through a sliding groove.

[0014] Preferably, the top of the base is fixedly connected to a support plate, the outer wall of the support plate is fixedly connected to a second motor, the output shaft of the second motor is fixedly connected to a rotating rod through a coupling, a winding roller is installed on the outer wall of the rotating rod, and the top of the base is fixedly connected to a material picking mechanism, the material picking mechanism includes a bracket fixedly installed on the top of the base, the outer wall of the bracket is fixedly connected to a hydraulic rod, the output end of the hydraulic rod is fixedly connected to a support block, an avoidance groove is opened inside the support block, and a retaining ring is fixedly connected to the inner wall of the avoidance groove.

[0015] Preferably, the winding roller forms a rotating structure with the support plate through a rotating rod, the rotating rod is movably connected to the support block through an avoidance groove, the rotating rod is a slotted design, and the rotating rod is engaged with a snap ring.

[0016] A tensioning method for a self-tensioning acrylic fabric production winding device comprises the following steps:

[0017] S1. By starting the first motor, the threaded rod rotates, driving the movable block threadedly connected to the outer wall of the threaded rod to move downward, so that the first frame plate fixedly connected to one side of the receiving plate moves downward, driving the guide rod to slide along the first frame guide, so that the first pressure roller moves downward and presses down on the acrylic fabric, making the acrylic fabric taut;

[0018] S2. By moving the movable block downward, the first rack is driven downward. Under the action of the gear, the second rack is synchronously moved upward, driving the L-shaped connecting plate to slide upward along the chute, so that the second pressure roller squeezes the acrylic fabric, further tightening the acrylic fabric;

[0019] S3. When the acrylic fabric is pulled and reeled, the acrylic fabric is attached to the second pressure roller. Under the action of the second shaft, the second pressure roller can be rotated along the second frame plate, and the acrylic fabric can be conveyed while the tension is adjusted;

[0020] S4. By starting the second motor, the rotating rod can be rotated, driving the winding roller to rotate and wind the acrylic fabric. The rotating rod can be rotated along the avoidance groove, and the hydraulic rod can be started to move the support block downward and drive the clamping ring to move out of the clamping groove in the rotating rod. At this time, the winding roller can be disassembled and replaced.

[0021] The present invention provides a self-tensioning acrylic fabric production winding device and tensioning method thereof, which have the following advantages:

[0022] By providing a tensioning adjustment mechanism and an auxiliary adjustment mechanism, by starting the first motor, the threaded rod rotates to drive the movable block to move downward, so that the first frame plate fixedly connected to one side of the receiving plate moves downward, and the first pressing roller moves downward to press the acrylic fabric downward, so that the acrylic fabric is tightened. When the acrylic fabric is pulled and wound, the first pressing roller can be rotated along the first frame plate and convey the acrylic fabric, which makes it easy to adjust the winding tension according to the actual material thickness difference of the fabric, thereby improving the quality of the acrylic fabric winding processing;

[0023] Furthermore, under the action of the movable groove, the stability of the sliding and lifting of the receiving plate can be improved. Under the cooperative sliding of the guide rod and the first frame plate, the stability of the lifting and lowering adjustment of the first frame plate can be improved, further improving the stability of the tension adjustment when the fabric is rolled up.

[0024] Furthermore, by moving the movable block downward to drive the first rack downward, the second rack can be moved upward synchronously, driving the L-shaped connecting plate upward, causing the guide plate to slide along the guide groove, so that the second pressing roller squeezes the bottom of the acrylic fabric, and the tension of the acrylic fabric during winding can be further adjusted;

[0025] Furthermore, under the action of the second rotating shaft, the second pressing roller can be rotated along the second frame plate, so that the acrylic fabric can be conveyed while the tension is adjusted, thereby preventing the acrylic fabric from wrinkling and further improving the quality of the winding process;

[0026] By providing a second motor, a rotating rod, a winding roller and a material taking mechanism, the rotating rod can be rotated by starting the second motor, driving the winding roller to rotate and wind the acrylic fabric. Starting the hydraulic rod can move the support block downward and drive the clamping ring to move out of the clamping groove in the rotating rod, thereby facilitating the disassembly and replacement of the winding roller after winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a front view schematic diagram of the present invention;

[0029] Figure 3 It is a side view schematic diagram of the present invention;

[0030] Figure 4 It is a front view schematic diagram of the tension adjustment mechanism of the present invention;

[0031] Figure 5 A three-dimensional diagram of the first pressing roller of the present invention;

[0032] Figure 6 It is a front view schematic diagram of the auxiliary adjustment mechanism of the present invention;

[0033] Figure 7 is a three-dimensional diagram of the second pressing roller of the present invention;

[0034] Figure 8 It is a front view schematic diagram of the material taking mechanism of the present invention.

[0035] Explanation of the reference numerals in the figure: 1. base; 2. tensioning adjustment mechanism; 21. first frame plate; 22. first motor; 23. threaded rod; 24. movable block; 25. threaded groove; 26. receiving plate; 27. first frame plate; 271. first rotating shaft; 272. first pressure roller; 28. guide rod; 29. ​​movable groove; 3. auxiliary adjustment mechanism; 31. first rack; 32. gear; 33. movable shaft; 34. second rack; 35. L-shaped connecting plate; 36. second frame plate; 37. second frame plate; 371. second rotating shaft; 372. second pressure roller; 373. guide plate; 38. guide groove; 39. slide; 4. support plate; 5. second motor; 6. rotating rod; 7. winding roller; 8. material taking mechanism; 81. bracket; 82. hydraulic rod; 83. support block; 84. avoidance groove; 85. snap ring. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] See also Figures 1-8 The present invention provides a self-tensioning acrylic fabric production winding device and a tensioning method thereof, comprising a base 1.

[0038] Reference Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the top of the base 1 is fixedly connected to a tensioning adjustment mechanism 2, and the tensioning adjustment mechanism 2 includes a first frame plate 21 fixedly mounted on the top of the base 1, an outer wall of the first frame plate 21 is fixedly connected to a first motor 22, an output shaft of the first motor 22 is fixedly connected to a threaded rod 23 through a coupling, an outer wall of the threaded rod 23 is movably connected to a movable block 24, a threaded groove 25 is provided inside the movable block 24, a side of the movable block 24 is fixedly connected to a receiving plate 26, an outer wall of the receiving plate 26 is fixedly connected to a first frame plate 27, and the first frame plate 2 7 is movably connected to the first rotating shaft 271, the outer wall of the first rotating shaft 271 is fixedly connected to the first pressure roller 272, the top of the first frame plate 27 is fixedly connected to the guide rod 28, a movable groove 29 is opened inside the first frame plate 21, the threaded rod 23 is threadedly connected to the movable block 24 through the threaded groove 25, the receiving plate 26 forms a sliding structure with the first frame plate 21 through the movable groove 29, the guide rod 28 and the first frame plate 21 form a sliding structure, and the first pressure roller 272 forms a rotating structure with the first rotating shaft 271 and the first frame plate 27.

[0039] By starting the first motor 22, the threaded rod 23 is rotated. Since the threaded rod 23 is threadedly connected to the movable block 24 through the threaded groove 25, the movable block 24 can be moved downward, the receiving plate 26 can slide downward along the movable groove 29, and the first frame plate 27 fixedly connected on one side can be moved downward, driving the guide rod 28 to slide along the first frame plate 21, so that the first pressure roller 272 moves downward and presses down the acrylic fabric to tighten the acrylic fabric. When the acrylic fabric is pulled and wound, under the action of the first rotating shaft 271, the first pressure roller 272 can be rotated along the first frame plate 27 and convey the acrylic fabric. When the threaded rod 23 is reversed, the first pressure roller 272 can be raised, driving the tension of the acrylic fabric to be reduced when it is wound.

[0040] Reference Figure 1 、 Figure 3 、 Figure 6 and Figure 7 As shown, the outer wall of the movable block 24 is installed with an auxiliary adjustment mechanism 3, which includes a first rack 31 fixedly installed on the outer wall of the movable block 24, the outer wall of the first rack 31 is movably connected to a gear 32, the inner wall of the gear 32 is fixedly connected to a movable shaft 33, the outer wall of the gear 32 is movably connected to a second rack 34, the outer wall of the second rack 34 is fixedly connected to an L-shaped connecting plate 35, the auxiliary adjustment mechanism 3 also includes a second frame plate 36 fixedly installed on the top of the base 1, the outer wall of the L-shaped connecting plate 35 is fixedly connected to a second frame plate 37, the interior of the second frame plate 37 is movably connected to a second rotating shaft 371, the outer wall of the second rotating shaft 371 The wall is fixedly connected to the second pressure roller 372, the outer wall of the second frame plate 37 is fixedly connected to the guide plate 373, the interior of the second frame plate 36 is provided with a guide groove 38, the interior of the second frame plate 36 is provided with a slide groove 39, the first rack 31 is meshed with the gear 32, the gear 32 is meshed with the second rack 34, the second frame plate 37 forms a rotating structure with the second pressure roller 372 through the second rotating shaft 371, the guide plate 373 forms a sliding structure with the second frame plate 36 through the guide groove 38, the gear 32 forms a rotating structure with the second frame plate 36 through the movable shaft 33, and the L-shaped connecting plate 35 forms a sliding structure with the second frame plate 36 through the slide groove 39.

[0041] The first rack 31 is driven downward by the movable block 24. Since the first rack 31 is meshed and connected with the gear 32, and the gear 32 is meshed and connected with the second rack 34, the second rack 34 can be moved upward synchronously, driving the L-shaped connecting plate 35 to slide upward along the slide groove 39, driving the second frame plate 37 to move upward, causing the guide plate 373 to slide along the guide groove 38, so that the second pressing roller 372 squeezes the bottom of the acrylic fabric, further tightening the acrylic fabric. When the acrylic fabric is pulled and wound, since the acrylic fabric is in contact with the second pressing roller 372, the second pressing roller 372 can be rotated along the second frame plate 37 under the action of the second rotating shaft 371, so that the acrylic fabric can be conveyed while the tension is adjusted. Conversely, when the first pressing roller 272 moves upward, it will drive the second pressing roller 372 to move downward synchronously, so that the tension of the acrylic fabric is reduced when it is wound.

[0042] Reference Figure 3 and Figure 8 As shown, the top of the base 1 is fixedly connected to a support plate 4, the outer wall of the support plate 4 is fixedly connected to a second motor 5, the output shaft of the second motor 5 is fixedly connected to a rotating rod 6 through a coupling, the outer wall of the rotating rod 6 is installed with a winding roller 7, the top of the base 1 is fixedly connected to a material picking mechanism 8, the material picking mechanism 8 includes a bracket 81 fixedly installed on the top of the base 1, the outer wall of the bracket 81 is fixedly connected to a hydraulic rod 82, the output end of the hydraulic rod 82 is fixedly connected to a support block 83, an avoidance groove 84 is provided inside the support block 83, the inner wall of the avoidance groove 84 is fixedly connected with a snap ring 85, the winding roller 7 forms a rotating structure with the support plate 4 through the rotating rod 6, the rotating rod 6 is movably connected to the support block 83 through the avoidance groove 84, the rotating rod 6 is a slotted design, and the rotating rod 6 is engaged with the snap ring 85.

[0043] By starting the second motor 5, the rotating rod 6 can be rotated, driving the winding roller 7 to rotate and wind the acrylic fabric, so that the rotating rod 6 rotates along the avoidance groove 84, so that the support block 83 can rotationally support the rotating rod 6. When the acrylic fabric is wound, the hydraulic rod 82 is started, the support block 83 can be moved downward, and the clamping ring 85 can be moved out of the clamping groove in the rotating rod 6. At this time, the winding roller 7 that has been wound can be disassembled and replaced.

[0044] A tensioning method for a self-tensioning acrylic fabric production winding device comprises the following steps:

[0045] S1. By starting the first motor 22, the threaded rod 23 rotates, driving the movable block 24 threadedly connected to the outer wall of the threaded rod 23 to move downward, causing the first frame plate 27 fixedly connected to one side of the receiving plate 26 to move downward, driving the guide rod 28 to slide along the guide of the first frame plate 21, causing the first pressure roller 272 to move downward and press down on the acrylic fabric, making the acrylic fabric taut;

[0046] S2. By moving the movable block 24 downward, the first rack 31 moves downward. Under the action of the gear 32, the second rack 34 moves upward synchronously, driving the L-shaped connecting plate 35 to slide upward along the chute 39, so that the second pressure roller 372 squeezes the acrylic fabric, further tightening the acrylic fabric.

[0047] S3. When the acrylic fabric is pulled and reeled, the acrylic fabric is attached to the second pressure roller 372. Under the action of the second shaft 371, the second pressure roller 372 can be rotated along the second frame plate 37, and the acrylic fabric can be conveyed while the tension is adjusted;

[0048] S4. By starting the second motor 5, the rotating rod 6 can be rotated, driving the winding roller 7 to rotate and wind the acrylic fabric, and the rotating rod 6 can be rotated along the avoidance groove 84. Starting the hydraulic rod 82 can move the support block 83 downward and drive the clamping ring 85 to move out of the clamping groove in the rotating rod 6. At this time, the winding roller 7 that has been wound can be disassembled and replaced.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-tensioning acrylic fabric production winding device, comprising a base (1); Its characteristics are: The top of the base (1) is fixedly connected to a tensioning adjustment mechanism (2), and the tensioning adjustment mechanism (2) comprises a first frame plate (21) fixedly mounted on the top of the base (1); the outer wall of the first frame plate (21) is fixedly connected to a first motor (22); the output shaft of the first motor (22) is fixedly connected to a threaded rod (23) via a coupling; the outer wall of the threaded rod (23) is movably connected to a movable block (24); a threaded groove (25) is provided inside the movable block (24); a receiving plate (26) is fixedly connected to one side of the movable block (24); and the outer wall of the receiving plate (26) is fixedly connected to a first frame plate (27); The outer wall of the movable block (24) is installed with an auxiliary adjustment mechanism (3), and the auxiliary adjustment mechanism (3) includes a first rack (31) fixedly installed on the outer wall of the movable block (24), the outer wall of the first rack (31) is movably connected to a gear (32), the inner wall of the gear (32) is fixedly connected to a movable shaft (33), the outer wall of the gear (32) is movably connected to a second rack (34), the outer wall of the second rack (34) is fixedly connected to an L-shaped connecting plate (35), and the auxiliary adjustment mechanism (3) also includes a second frame plate (36) fixedly installed on the top of the base (1).

2. The self-tensioning acrylic fabric production winding device according to claim 1, characterized in that: The first frame plate (27) is movably connected to a first rotating shaft (271) inside, a first pressing roller (272) is fixedly connected to an outer wall of the first rotating shaft (271), a guide rod (28) is fixedly connected to the top of the first frame plate (27), and a movable groove (29) is provided inside the first frame plate (21).

3. The self-tensioning acrylic fabric production winding device according to claim 2, characterized in that: The threaded rod (23) is threadedly connected to the movable block (24) through a threaded groove (25); the receiving plate (26) forms a sliding structure with the first frame plate (21) through a movable groove (29); the guide rod (28) forms a sliding structure with the first frame plate (21); and the first pressing roller (272) forms a rotating structure with the first frame plate (27) through a first rotating shaft (271).

4. The self-tensioning acrylic fabric production winding device according to claim 1, characterized in that: The outer wall of the L-shaped connecting plate (35) is fixedly connected to a second frame plate (37), the interior of the second frame plate (37) is movably connected to a second rotating shaft (371), the outer wall of the second rotating shaft (371) is fixedly connected to a second pressing roller (372), the outer wall of the second frame plate (37) is fixedly connected to a guide plate (373), the interior of the second frame plate (36) is provided with a guide groove (38), and the interior of the second frame plate (36) is provided with a sliding groove (39).

5. The self-tensioning acrylic fabric production winding device according to claim 4, characterized in that: The first rack (31) is meshedly connected to the gear (32), and the gear (32) is meshedly connected to the second rack (34).

6. The self-tensioning acrylic fabric production winding device according to claim 4, characterized in that: The second frame plate (37) forms a rotating structure with the second rotating shaft (371) and the second pressing roller (372), and the guide plate (373) forms a sliding structure with the second frame plate (36) through the guide groove (38).

7. The self-tensioning acrylic fabric production winding device according to claim 4, characterized in that: The gear (32) forms a rotating structure with the second frame plate (36) through a movable shaft (33), and the L-shaped connecting plate (35) forms a sliding structure with the second frame plate (36) through a sliding groove (39).

8. The self-tensioning acrylic fabric production winding device according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a support plate (4), the outer wall of the support plate (4) is fixedly connected to a second motor (5), the output shaft of the second motor (5) is fixedly connected to a rotating rod (6) through a coupling, the outer wall of the rotating rod (6) is installed with a winding roller (7), the top of the base (1) is fixedly connected to a material taking mechanism (8), the material taking mechanism (8) comprises a bracket (81) fixedly installed on the top of the base (1), the outer wall of the bracket (81) is fixedly connected to a hydraulic rod (82), the output end of the hydraulic rod (82) is fixedly connected to a support block (83), an avoidance groove (84) is provided inside the support block (83), and a snap ring (85) is fixedly connected to the inner wall of the avoidance groove (84).

9. The self-tensioning acrylic fabric production winding device according to claim 8, characterized in that: The winding roller (7) forms a rotating structure with the support plate (4) through the rotating rod (6); the rotating rod (6) is movably connected to the support block (83) through the avoidance groove (84); the rotating rod (6) is a slotted design; the rotating rod (6) is engaged with the clamping ring (85).

10. A tensioning method for a self-tensioning acrylic fabric production winding device, comprising the following steps, characterized in that: S1. By starting the first motor (22), the threaded rod (23) rotates, driving the movable block (24) threadedly connected to the outer wall of the threaded rod (23) to move downward, causing the first frame plate (27) fixedly connected to one side of the receiving plate (26) to move downward, driving the guide rod (28) to slide along the guide of the first frame plate (21), causing the first pressure roller (272) to move downward and press the acrylic fabric downward, so that the acrylic fabric is tightened; S2. The movable block (24) moves downward to drive the first rack (31) to move downward. Under the action of the gear (32), the second rack (34) can be moved upward synchronously, driving the L-shaped connecting plate (35) to slide upward along the chute (39), so that the second pressure roller (372) squeezes the acrylic fabric, further tightening the acrylic fabric; S3. When the acrylic fabric is pulled and wound, since the acrylic fabric is in contact with the second pressure roller (372), the second pressure roller (372) can be rotated along the second frame plate (37) under the action of the second rotating shaft (371), and the acrylic fabric can be conveyed while being tensioned and adjusted; S4. By starting the second motor (5), the rotating rod (6) can be rotated, driving the winding roller (7) to rotate and wind the acrylic fabric, so that the rotating rod (6) rotates along the avoidance groove (84), and the hydraulic rod (82) is started, so that the support block (83) can be moved downward and the clamping ring (85) can be moved out of the clamping groove in the rotating rod (6). At this time, the winding roller (7) that has been wound can be disassembled and replaced.

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