A cloth rolling machine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]但是在布料卷绕时,布料易产生褶皱,且在卷绕后难以发现,不利于后面的裁剪作业
本发明,第一搌布辊和第二搌布辊的设置使布料能够完全在卷绕面上辗平,的设置使搌布辊在单位时间内转动的距离大于布料移动的距离,此时搌布辊上的螺旋状的摩擦纹产生效果,能够将布料向两侧辗平,避免卷绕的布料褶皱不平,便于后续裁剪工序的进行;第一伸缩部件和第二伸缩部件的设置能够在转动轮上的布料变厚时,使设备能够正常工作,同时本发明几乎不需要对原有设备进行改动,能够直接兼容原有设备,设备改造升级起来迅速快捷。
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Figure CN118306826B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fabric winding and rolling technology, and specifically to a fabric rolling machine. Background Technology
[0002] In the production of protective clothing, the fabric needs to be laid flat and stacked in multiple layers before being cut. To facilitate the stacking of fabric, Chinese invention patent application number 202210866883.9 discloses a winding device and its method for producing protective clothing. The device winds the fabric around a rotating wheel, then cuts the fabric and drags it onto a platform to complete the stacking of multiple layers of fabric.
[0003] However, during fabric winding, wrinkles easily form and are difficult to detect after winding, which is detrimental to subsequent cutting operations. Therefore, the existing equipment needs to be modified and upgraded to avoid winding the fabric in a wrinkled and uneven state.
[0004] Therefore, there is an urgent need for a device that can prevent uneven wrinkles in the rolled-up fabric without requiring major modifications to the existing equipment. Summary of the Invention
[0005] The main objective of this invention is to provide a fabric rolling machine that can avoid uneven wrinkles in rolled fabric without making major modifications to the original equipment.
[0006] To achieve the above objectives, the technical solution of the present invention is as follows: a fabric rolling machine, used in conjunction with a winding device with a rotating wheel, the fabric rolling machine includes a base, a first fabric rolling roller and a second fabric rolling roller, the winding surface of the rotating wheel for winding the fabric is tangent to the first fabric rolling roller and the second fabric rolling roller respectively, the fabric wound on the rotating wheel passes through the first fabric rolling roller and the second fabric rolling roller in sequence, and contacts the first fabric rolling roller and the second fabric rolling roller; The first fabric roller includes a first roller body, the axial length of the first roller body is less than the axial length of the rotating wheel, the two ends of the first roller body are connected to the base through a first telescopic component, and two spiral friction patterns with opposite directions are symmetrically arranged on the first roller body. The friction patterns are used to roll the fabric to both sides when the first roller body rotates. The second fabric roller includes a rotating rod and second roller bodies located at both ends of the rotating rod. The middle part of the rotating rod is connected to the base through a second telescopic component. The second roller bodies are staggered with the first roller bodies, and the ends of the second roller bodies are flush with one side of the winding surface of the rotating wheel. The second roller bodies are also provided with spiral friction patterns, and the friction patterns on the second roller bodies located at both ends of the rotating rod rotate in opposite directions, which is used to roll the fabric to both sides when the second roller bodies rotate. The power unit is used to drive the first and second cloth-drying rollers to rotate, and to set the rotational speed of the first and second cloth-drying rollers to be [missing information]. ,
[0007] in, The rotational speed of the fabric roller, measured in revolutions per second; The speed at which the fabric travels, measured in meters per second. The diameters of the first and second fabric rollers are given in meters.
[0008] Furthermore, both the first telescopic component and the second telescopic component include a first rod, a second rod, and a spring. The first rod is slidably disposed within the second rod, and the spring is located between the first rod and the second rod. The spring is used to push the first rod to move closer to the rotating wheel, and one end of the first rod corresponding to the rotating wheel does not extend beyond the corresponding first and second tufting rollers.
[0009] Furthermore, the power component includes a drive unit and a turntable. The drive unit is used to drive the turntable to rotate. There are two turntables, which are respectively rotatably disposed on one side of the first telescopic component and the second telescopic component, and are connected to the base through a mounting bracket. In the first and second telescopic components, a tangent wheel is rotatably provided on one side of the first rod corresponding to the turntable. The tangent wheel contacts and is tangential to one side of the turntable. The rotation of the turntable can drive the tangent wheel to rotate. The first rod can drive the tangent wheel to move together. When the first rod drives the tangent wheel to move away from the rotating wheel, the transmission ratio between the tangent wheel and the turntable changes, and the rotational speed of the tangent wheel increases. The first rod body is provided with a transmission unit, which is used to connect the tangent wheel and the first roller body and to connect the tangent wheel and the rotating rod, and is used to drive the first roller body and the corresponding rotating rod to rotate when the tangent wheel rotates.
[0010] Furthermore, a connecting block is provided on one side of the corresponding turntable of the first rod body, and a first rotating shaft is provided on one side of the tangent wheel. One end of the first rotating shaft is rotatably inserted into the connecting block and connected to a first bevel gear. The transmission unit includes a second rotating shaft disposed in the first rod body. One end of the second rotating shaft is provided with a second bevel gear meshing with the first bevel gear, and the other end is provided with a first pulley. A second pulley is disposed at the position of the first roller body and the rotating rod within the first rod body. The first pulley and the second pulley are connected by a transmission belt.
[0011] Furthermore, the drive unit includes two third pulleys coaxially arranged with the two turntables respectively, a drive shaft is rotatably arranged on the base, and two fourth pulleys corresponding to the two third pulleys are arranged on the drive shaft respectively, and the corresponding third pulleys and fourth pulleys are connected by a transmission belt; It also includes a fifth pulley and a sixth pulley. The fifth pulley is located at one end of the drive shaft, and the sixth pulley is coaxially arranged with the rotating wheel. The fifth pulley and the sixth pulley are connected by a transmission belt.
[0012] Furthermore, the second roller can move along the axis of the rotating rod, and a first limiting component is provided on the second roller to limit the position of the second roller relative to the rotating rod.
[0013] Furthermore, one end of the drive shaft corresponding to the fifth pulley is provided with a connecting shaft connected to the fifth pulley. The connecting shaft is slidably inserted inside the drive shaft and can move along the axial direction of the drive shaft. A second limiting component is provided on the drive shaft to limit the position of the connecting shaft relative to the drive shaft.
[0014] The beneficial effects of this invention are reflected in: In this invention, the arrangement of the first and second fabric-rolling rollers allows the fabric to be completely flattened on the winding surface. The design ensures that the distance the fabric roller rotates per unit time is greater than the distance the fabric moves. At this time, the spiral friction texture on the fabric roller produces an effect that can flatten the fabric to both sides, avoiding unevenness and wrinkles in the rolled fabric, which facilitates the subsequent cutting process. The design of the first and second telescopic components allows the equipment to work normally when the fabric on the rotating wheel becomes thicker. At the same time, the invention requires almost no modification to the original equipment, is directly compatible with the original equipment, and can be quickly and easily upgraded. Attached Figure Description
[0015] In the attached diagram: Figure 1 This is an installation diagram of the fabric rolling machine described in this invention; Figure 2 This is a structural view of the fabric rolling machine described in this invention; Figure 3 This is a structural view of the driving unit described in this invention; Figure 4 This is a structural view of the transmission unit described in this invention.
[0016] Explanation of reference numerals in the attached figures: 1. Rotating wheel; 2. Base; 21. Mounting frame; 3. First tucking roller; 31. First roller body; 32. Friction texture; 33. First telescopic component; 34. First rod body; 341. Tangential wheel; 342. Connecting block; 343. First rotating shaft; 344. First bevel gear; 345. Second rotating shaft; 346. Second bevel gear; 347. First pulley; 348. Second pulley; 35. Second rod body; 36. Spring; 4. Second tucking roller; 41. Rotating rod; 42. Second roller body; 43. Second telescopic component; 44. First limiting component; 5. Drive unit; 51. Third pulley; 52. Drive shaft; 53. Fourth pulley; 54. Fifth pulley; 55. Sixth pulley; 56. Connecting rotating shaft; 57. Second limiting component; 6. Turntable. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the invention, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0018] See Figures 1 to 4 .
[0019] This invention discloses a fabric rolling machine, which is used in conjunction with a winding device with a rotating wheel 1. The fabric rolling machine is located below the rotating wheel 1. The fabric rolling machine includes a base 2, a first fabric roller 3 and a second fabric roller 4. The first fabric roller 3 and the second fabric roller 4 are arranged side by side on the base 2, and the rotation axes of the first fabric roller 3 and the second fabric roller 4 are parallel to the rotation axis of the rotating wheel 1. The winding surface of the rotating wheel 1 for winding the fabric is tangent to the first fabric roller 3 and the second fabric roller 4 respectively. The fabric wound on the rotating wheel 1 passes through the first fabric roller 3 and the second fabric roller 4 in sequence and comes into contact with the first fabric roller 3 and the second fabric roller 4. The first fabric roller 3 includes a first roller body 31, the axial length of which is less than the axial length of the rotating wheel 1. The two ends of the first roller body 31 are connected to the base 2 through the first telescopic component 33. Two spiral friction patterns 32 with opposite rotation directions are symmetrically arranged on the first roller body 31. The friction patterns 32 are used to roll the fabric to both sides when the first roller body 31 rotates. The second fabric roller 4 includes a rotating rod 41 and second roller bodies 42 located at both ends of the rotating rod 41. The middle part of the rotating rod 41 is connected to the base 2 through a second telescopic member 43. The second roller bodies 42 are distributed in an alternating and overlapping manner with the first roller body 31, and the end of the second roller body 42 is flush with one side of the winding surface of the rotating wheel 1. The second roller body 42 is also provided with spiral friction textures 32, and the friction textures 32 on the second roller bodies 42 located at both ends of the rotating rod 41 rotate in opposite directions, which is used to roll the fabric to both sides when the second roller body 42 rotates. The power unit is used to drive the first wiping roller 3 and the second wiping roller 4 to rotate, and to make the rotational speed of the first wiping roller 3 and the second wiping roller 4 be [missing information]. ,
[0020] in, The unit for the rotational speed of the fabric roller is revolutions per second. The speed at which the fabric travels, measured in meters per second. The diameters of the first and second fabric rollers are given in meters.
[0021] In specific implementation, the aforementioned winding device adopts the corresponding structure in the patent application number 202210866883.9, which belongs to the prior art, so it will not be described in detail here; the support rods on both sides of the rotating wheel 1 should extend beyond the end face of the rotating wheel 1, and the rotating wheel 1 can also be a cylindrical structure. During operation, the fabric wound on the rotating wheel 1 first passes through the first fabric-rolling roller 3, which flattens the middle part of the fabric to both sides, and then passes through the second fabric-rolling roller 4, which further flattens the two ends of the fabric.
[0022] It should be noted that the reason for setting up a second fabric roller 4 on top of the first fabric roller 3 is that the two sides of the rotating wheel 1 are higher than the winding surface (this can restrict the fabric to the rotating surface of the rotating wheel 1 and prevent the fabric from running out of the rotating wheel 1). In order to support the first fabric roller 3, the axial length of the first fabric roller 3 can only be less than the axial length of the rotating wheel 1, and cannot be flush with one side of the winding surface; the second fabric roller 4 is set up to make up for this, so that the fabric can be completely rolled flat on the winding surface. The setting allows the fabric roller to rotate a distance greater than the distance the fabric moves per unit time. At this time, the spiral friction texture 32 on the fabric roller produces an effect that can flatten the fabric to both sides, avoid unevenness from the rolled fabric, and facilitate subsequent cutting processes.
[0023] As the rotating wheel 1 rotates, the fabric wound around it becomes increasingly thick until it interferes with the fabric-pulling roller. The first telescopic component 33 and the second telescopic component 43 effectively address this issue. When the fabric wound around the rotating wheel 1 becomes thicker, the rotating wheel 1 applies a squeezing force to the fabric-pulling roller, causing the first telescopic component 33 and the second telescopic component 43 to extend and retract, allowing the equipment to operate normally. This invention requires almost no modification to existing equipment, is directly compatible with existing equipment, and allows for rapid and quick equipment upgrades.
[0024] Preferably, the friction texture 32 is slightly raised above the surface of the roller. The texture of the friction texture 32 can be made by a sanding process or it can be composed of small protrusions.
[0025] It should be noted that the rotational speeds of the first tufting roller 3 and the second tufting roller 4 can be equal or unequal.
[0026] In one embodiment, both the first telescopic component 33 and the second telescopic component 43 include a first rod 34, a second rod 35, and a spring 36. The first rod 34 is slidably disposed within the second rod 35, and the spring 36 is located between the first rod 34 and the second rod 35. The spring 36 is used to push the first rod 34 to move closer to the rotating wheel 1. One end of the first rod 34 corresponding to the rotating wheel 1 does not extend beyond the top of the outer surface of the corresponding first tufting roller 3 and second tufting roller 4.
[0027] In one embodiment, the power component includes a drive unit 5 and a turntable 6. The drive unit 5 is used to drive the turntable 6 to rotate. There are two turntables 6, which are respectively rotatably disposed on one side of the first telescopic component 33 and the second telescopic component 43, and are connected to the base 2 through the mounting bracket 21. A tangent wheel 341 is rotatably provided on one side of the first rod 34 corresponding to the turntable 6 in the first telescopic component 33 and the second telescopic component 43. The tangent wheel 341 contacts and is tangent to one side of the turntable 6, and the rotation axis of the tangent wheel 341 is perpendicular to the rotation axis of the turntable 6. The rotation of the turntable 6 can drive the tangent wheel 341 to rotate, and the first rod 34 can drive the tangent wheel 341 to move together. When the first rod 34 drives the tangent wheel 341 to move away from the rotating wheel 1, the transmission ratio between the tangent wheel 341 and the turntable 6 changes, and the rotation speed of the tangent wheel 341 increases. The first rod body 34 is provided with a transmission unit, which is used to connect the tangent wheel 341 and the first roller body 31 and to connect the tangent wheel 341 and the rotating rod 41, and to drive the first roller body 31 and the corresponding rotating rod 41 to rotate when the tangent wheel 341 rotates.
[0028] Specifically, a connecting block 342 is provided on one side of the corresponding turntable 6 of the first rod body 34, and a first rotating shaft 343 is provided on one side of the tangent wheel 341. One end of the first rotating shaft 343 is rotatably inserted into the connecting block 342 and connected to a first bevel gear 344. The transmission unit includes a second rotating shaft 345 disposed in the first rod body 34. One end of the second rotating shaft 345 is provided with a second bevel gear 346 that meshes with the first bevel gear 344, and the other end is provided with a first pulley 347. A second pulley 348 is provided at the position of the first roller body 31 and the rotating rod 41 located in the first rod body 34. The first pulley 347 and the second pulley 348 are connected by a transmission belt.
[0029] With this design, as the rotating wheel 1 rotates, the fabric on the rotating wheel 1 becomes thicker and thicker, and correspondingly, the traveling speed of the fabric to be wound becomes faster and faster. If the speed of the tucking roller remains unchanged, the tucking effect of the tucking roller will gradually deteriorate. However, the overall cooperation of the first rod 34, the turntable 6 and the tangent wheel 341 can solve this problem well. When the fabric becomes thicker, the first rod 34 will drive the tangent wheel 341 to move, making the rotation speed of the tangent wheel 341 faster, which in turn makes the rotation speed of the tucking roller faster, ensuring the tucking effect of the tucking roller.
[0030] In one embodiment, the drive unit 5 includes two third pulleys 51 that are coaxially arranged with the two turntables 6 respectively. A drive shaft 52 is rotatably arranged on the base 2. Two fourth pulleys 53 that correspond to the two third pulleys 51 respectively are arranged on the drive shaft 52. The corresponding third pulleys 51 and fourth pulleys 53 are connected by a transmission belt. It also includes a fifth pulley 54 and a sixth pulley 55. The fifth pulley 54 is located at one end of the drive shaft 52, and the sixth pulley 55 is coaxially arranged with the rotating wheel 1. The fifth pulley 54 and the sixth pulley 55 are connected by a transmission belt. With this design, if the rotational speed of the rotating wheel 1 changes, the rotational speed of the turntable 6 will also change synchronously, thereby causing the speed of the corresponding fabric roller to change synchronously to adapt to the rotational speed of the rotating wheel 1.
[0031] In one embodiment, the second roller 42 is movable along the axis of the rotating rod 41. A first limiting member 44 is provided on the second roller 42 to limit the position of the second roller 42 relative to the rotating rod 41. This design allows for adjustment of the overall length of the second fabric-winding roller 4 by changing the position of the second roller 42 relative to the rotating rod 41, since different rotating wheels 1 have different widths of the winding surface used for winding the fabric. This also facilitates the installation and adjustment of the equipment.
[0032] In one embodiment, a connecting shaft 56 is provided at one end of the drive shaft 52 corresponding to the fifth pulley 54, and is connected to the fifth pulley 54. The connecting shaft 56 is slidably disposed inside the drive shaft 52 and can move along the axial direction of the drive shaft 52. A second limiting member 57 is provided on the drive shaft 52 to limit the position of the connecting shaft 56 relative to the drive shaft 52. With this design, since the fifth pulley 54 and the sixth pulley 55 may not be exactly in the same vertical plane after the device is installed, the position of the connecting shaft 56 relative to the drive shaft 52 can be adjusted, which facilitates the installation and adjustment of the device.
[0033] Preferably, the first limiting component 44 and the second limiting component 57 can be limited by bolt clamping. Since the height of the first limiting component 44 should not exceed the surface of the first roller body 31, a countersunk hole can be opened at the position of the first limiting component 44 on the first roller body 31 so that the end of the clamping bolt does not exceed the surface of the first roller body 31.
[0034] It should be noted that if the embodiments of the invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0035] Furthermore, if the embodiments of the invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the invention.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A fabric rolling machine, used in conjunction with a winding device having a rotating wheel (1), characterized in that, The fabric rolling machine includes a base (2), a first fabric rolling roller (3) and a second fabric rolling roller (4). The rotating wheel (1) is used to wind the fabric. The winding surface of the rotating wheel (1) is tangent to the first fabric rolling roller (3) and the second fabric rolling roller (4) respectively. The fabric wound on the rotating wheel (1) passes through the first fabric rolling roller (3) and the second fabric rolling roller (4) in sequence and comes into contact with the first fabric rolling roller (3) and the second fabric rolling roller (4). The first fabric roller (3) includes a first roller body (31), the axial length of the first roller body (31) is less than the axial length of the rotating wheel (1), the two ends of the first roller body (31) are connected to the base (2) through the first telescopic component (33), and two spiral friction patterns (32) with opposite rotation directions are symmetrically arranged on the first roller body (31). The friction patterns (32) are used to roll the fabric to both sides when the first roller body (31) rotates. The second fabric roller (4) includes a rotating rod (41) and a second roller body (42) located at both ends of the rotating rod (41). The middle part of the rotating rod (41) is connected to the base (2) through a second telescopic component (43). The second roller body (42) and the first roller body (31) are staggered and the end of the second roller body (42) is flush with one side of the winding surface of the rotating wheel (1). The second roller body (42) is also provided with spiral friction texture (32), and the friction texture (32) on the second roller body (42) located at both ends of the rotating rod (41) rotates in opposite directions, which is used to roll the fabric to both sides when the second roller body (42) rotates. The power unit is used to drive the first tufting roller (3) and the second tufting roller (4) to rotate, and to make the rotational speed of the first tufting roller (3) and the second tufting roller (4) be [missing information]. , ; in, The rotational speeds of the first and second fabric-drying rollers are given, in revolutions per second. The speed at which the fabric travels, measured in meters per second. The diameters of the first and second wetting rollers are given in meters. The first telescopic component (33) and the second telescopic component (43) each include a first rod (34), a second rod (35) and a spring (36). The first rod (34) is slidably disposed inside the second rod (35). The spring (36) is located between the first rod (34) and the second rod (35). The spring (36) is used to push the first rod (34) to move closer to the rotating wheel (1). One end of the first rod (34) corresponding to the rotating wheel (1) does not extend beyond the corresponding first tufting roller (3) and second tufting roller (4). The power component includes a drive unit (5) and a turntable (6). The drive unit (5) is used to drive the turntable (6) to rotate. There are two turntables (6), which are respectively rotatably disposed on one side of the first telescopic component (33) and the second telescopic component (43), and are connected to the base (2) through the mounting bracket (21). In the first telescopic component (33) and the second telescopic component (43), a tangent wheel (341) is rotatably provided on one side of the first rod (34) corresponding to the turntable (6). The tangent wheel (341) contacts and is tangential to one side of the turntable (6). The rotation of the turntable (6) can drive the tangent wheel (341) to rotate. The first rod (34) can drive the tangent wheel (341) to move together. When the first rod (34) drives the tangent wheel (341) to move away from the rotating wheel (1), the transmission ratio between the tangent wheel (341) and the turntable (6) changes, and the rotation speed of the tangent wheel (341) increases. The first rod body (34) is provided with a transmission unit. The transmission unit is used to connect the tangent wheel (341) and the first roller body (31) and to connect the tangent wheel (341) and the rotating rod (41). It is used to drive the first roller body (31) and the corresponding rotating rod (41) to rotate when the tangent wheel (341) rotates. The drive unit (5) includes two third pulleys (51) coaxially arranged with the two turntables (6), and a drive shaft (52) is rotatably arranged on the base (2). The drive shaft (52) is provided with two fourth pulleys (53) corresponding to the two third pulleys (51), and the corresponding third pulleys (51) and fourth pulleys (53) are connected by a transmission belt. It also includes a fifth pulley (54) and a sixth pulley (55). The fifth pulley (54) is located at one end of the drive shaft (52), and the sixth pulley (55) is coaxially arranged with the rotating wheel (1). The fifth pulley (54) and the sixth pulley (55) are connected by a transmission belt.
2. The fabric rolling machine according to claim 1, characterized in that, A connecting block (342) is provided on one side of the corresponding turntable (6) of the first rod body (34), and a first rotating shaft (343) is provided on one side of the tangent wheel (341). One end of the first rotating shaft (343) is rotatably inserted into the connecting block (342) and connected to a first bevel gear (344). The transmission unit includes a second rotating shaft (345) provided in the first rod body (34). One end of the second rotating shaft (345) is provided with a second bevel gear (346) that meshes with the first bevel gear (344), and the other end is provided with a first pulley (347). A second pulley (348) is provided at the position of the first roller body (31) and the rotating rod (41) located in the first rod body (34). The first pulley (347) and the second pulley (348) are connected by a transmission belt.
3. The fabric rolling machine according to claim 1 or 2, characterized in that, The second roller (42) can move along the axis of the rotating rod (41). The second roller (42) is provided with a first limiting component (44) to limit the position of the second roller (42) relative to the rotating rod (41).
4. The fabric rolling machine according to claim 1, characterized in that, One end of the drive shaft (52) corresponding to the fifth pulley (54) is provided with a connecting shaft (56) connected to the fifth pulley (54). The connecting shaft (56) slides through the interior of the drive shaft (52) and can move along the axial direction of the drive shaft (52). A second limiting component (57) is provided on the drive shaft (52) to limit the position of the connecting shaft (56) relative to the drive shaft (52).
Citation Information
Patent Citations
A device for producing protective clothing and its usage method
CN115092735B
Crease-resistant assembly for cloth winding device
CN118306827A