Yarn pressing device
By introducing a adjustment component into the yarn pressing device, the tension and height of the pressing yarn are dynamically adjusted, and the problem of uneven fiber tension in the prior art is solved, and the thread collection quality and yarn pressure uniformity are improved.
Patent Information
- Application Number
- CN202420955213.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The existing yarn pressing device is difficult to dynamically adjust to adapt to changes in the effective coiling diameter of the receptacle roller, resulting in uneven fiber tension and affecting the quality of the receptacle.
A yarn pressing device including a wire retracting roller and a tensioning mechanism is designed to ensure the yarn by adjusting the tension and height of the yarn pressing components such as mounts, tensioners, motors, telescopic parts and vertical slides. The wire maintains a fixed range of fiber tension during the wire collection process.
Dynamic adjustment of the yarn pressure force is achieved, yarn friction is reduced, the yarn pressure range is expanded, the fiber tension is more uniform, and the thread collection quality is improved.
Smart Images
Figure CN222294289U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cotton carding machine take-up, and in particular to a yarn pressing device. Background Art
[0002] The carding machine is equipped with a yarn pressing device at the take-up roller and cylinder outlet at the outlet end. The function of the yarn pressing device is to ensure that the fiber is under a certain tension condition to avoid entanglement, knotting and other problems. However, as the take-up roller reels the yarn, the effective reeling diameter will continue to increase. The existing yarn pressing device is difficult to dynamically adjust with the change of the effective reeling diameter, resulting in too little or too much fiber tension, which in turn leads to poor reeling quality. Utility Model Content
[0003] In order to dynamically adjust the force of yarn pressing, the present application provides a yarn pressing device.
[0004] The present application provides a yarn pressing device adopting the following technical solution:
[0005] A yarn pressing device comprises a wire taking-up roller and a tensioning mechanism, wherein the tensioning mechanism is arranged on one side of the wire taking-up roller, and the tensioning mechanism comprises a frame, a yarn pressing rod and a yarn pressing line, wherein the yarn pressing rod is fixedly connected to the frame, and the yarn pressing line is connected to the frame through an adjusting component, and the yarn pressing line and the yarn pressing rod are parallel to each other, and the adjusting component is used to adjust the tension of the yarn pressing line and its height in the vertical direction.
[0006] By adopting the above technical solution, the yarn is placed in the middle of the yarn pressing rod and the yarn pressing line in the vertical direction. By adjusting the tension of the yarn pressing line and the height in the vertical direction, pressure can be applied to the yarn, thereby adjusting the fiber tension of the yarn, so that the fiber tension of the yarn is within a fixed range during the entire winding process, thereby improving the winding quality.
[0007] Optionally, the adjustment component includes a mounting seat, the mounting seat has two longitudinal beams and a cross beam, the cross beams are arranged parallel to the yarn pressing rod, the longitudinal beams are respectively arranged at both ends of the cross beam, and the tops of the longitudinal beams have equal heights in the vertical direction.
[0008] By adopting the above technical solution, the two longitudinal beams of the mounting seat are arranged along the vertical direction, and the cross beam is arranged parallel to the yarn pressing rod. The combined structure of the longitudinal beam and the cross beam can play a positioning role for the subsequent installation of other components on the mounting seat, that is, the components installed along the extension direction of the longitudinal beam can ensure that they are also parallel to the vertical direction. When the two components located on the two longitudinal beams ensure that their heights in the vertical direction are the same, the connection direction of the two components is also parallel to the yarn pressing rod.
[0009] Optionally, the adjustment component includes a tensioning wheel and a motor, there are two tensioning wheels, each of which is respectively arranged on the top of the longitudinal beam, and the central axis of the tensioning wheel is perpendicular to the cross beam and the longitudinal beam at the same time, the two ends of the pressing yarn are respectively fixedly connected to the tensioning wheels, there are two motors, each of which is fixedly connected to the longitudinal beam, and each of the motors is respectively driven and connected to the tensioning wheels to drive the tensioning wheels to rotate around their own axes.
[0010] By adopting the above technical solution, two tensioning wheels are arranged on the top of the longitudinal beam, so the connection direction of the two tensioning wheels is also parallel to the yarn pressing rod. Since the two ends of the yarn pressing line are respectively fixedly connected to the tensioning wheels, the yarn pressing line can be parallel to the yarn pressing rod, and the motor driven by the tensioning wheel can drive the tensioning wheel to rotate around its own axis. When the motor drives the two tensioning wheels to rotate in opposite directions at the same time, the tension of the yarn pressing line can be adjusted.
[0011] Optionally, the tensioning wheel is connected to the longitudinal beam via a wheel axle, a first gear is fixedly connected to the wheel axle, a second gear is provided at the output end of the motor, and the first gear is meshed with the second gear.
[0012] By adopting the above technical solution, the motor starts working, the motor drives the second gear to rotate, the first gear rotates with the first gear under the meshing action with the second gear, and drives the tensioning wheel coaxially connected to itself to rotate around its own axis direction.
[0013] Optionally, the compression yarn is a polyurethane rope with a steel wire core.
[0014] By adopting the above technical solution, the steel wire core can improve the toughness of the compression yarn, while the polyurethane sheath wrapped outside can reduce the friction of the compression yarn on the yarn and improve the quality of winding.
[0015] Optionally, limiting ribs are provided on both sides of the tensioning wheel, and the spacing between the limiting ribs is equal to the diameter of the pressing yarn.
[0016] By adopting the above technical solution, the position of the pressing yarn in the horizontal direction can be limited to avoid the pressing yarn from deviating, resulting in the pressing yarn being not perpendicular to the yarn.
[0017] Optionally, scale lines are provided on the outer peripheral wall of the limit retaining edge.
[0018] By adopting the above technical solution, the staff can observe the rotation angle of the tensioning wheel more intuitively, so as to obtain the tension of the pressing yarn at this time.
[0019] Optionally, the adjustment component further includes a telescopic member, the telescopic member body is relatively fixed to the frame body, and the output end of the telescopic member is arranged along the vertical direction and connected to the crossbeam.
[0020] By adopting the above technical solution, since the telescopic member is connected to the crossbeam, when the telescopic member is working, the telescopic member can drive the mounting seat to move back and forth in the vertical direction, thereby playing a role in adjusting the height of the pressing yarn in the vertical direction.
[0021] Optionally, the adjustment assembly further includes a vertical slide rail and a slider, wherein the vertical slide rail is fixedly connected to the frame, the slider is fixedly connected to the mounting seat, and the slider is slidably connected to the vertical slide rail.
[0022] By adopting the above technical solution, the vertical slide rail and the slider can guide the mounting seat, so that the mounting seat can move more smoothly in the vertical direction, thereby reducing the collapse caused by uneven tension.
[0023] Optionally, there are two tensioning mechanisms, the yarn pressing device further includes a pad, the two tensioning mechanisms are sequentially arranged on the same side of the take-up roller, one of the two tensioning mechanisms close to the take-up roller is arranged on the ground, and the other is arranged on the pad.
[0024] By adopting the above technical solution and using a pad to raise the height, the yarn pressing rod of one of the two tensioning mechanisms, which is close to the take-up roller, can be located below the yarn, and the yarn pressing rod applies pressure to the yarn from above the yarn, while the yarn pressing rod of the other tensioning mechanism can be located above the yarn, and the yarn pressing rod applies pressure to the yarn from below the yarn, thereby expanding the yarn pressure range, making the yarn pressure more evenly distributed, and keeping the yarn fiber tension within a fixed range during the entire take-up process, thereby improving the take-up quality.
[0025] In summary, the present application includes at least one of the following beneficial technical effects:
[0026] 1. The force of the yarn pressing can be adjusted;
[0027] 2. Can reduce friction on yarn;
[0028] 3. It can expand the compression range of the yarn and make the compression of the yarn more even. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 is a schematic structural diagram of a yarn pressing device provided in an embodiment of the present application;
[0030] Figure 2 It is a structural schematic diagram of the tensioning mechanism provided in an embodiment of the present application.
[0031] Explanation of the reference numerals: 1-receiving roller; 2-tensioning mechanism; 201-frame; 202-yarn pressing rod; 203-yarn pressing; 204-mounting seat; 205-tensioning wheel; 2051-limiting retaining edge; 206-motor; 207-axle; 208-first gear; 209-second gear; 210-telescopic member; 211-vertical slide rail; 212-slider; 3-pad. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-2 This application is described in further detail.
[0033] The embodiment of the present application discloses a yarn pressing device.
[0034] like Figure 1 and Figure 2 As shown, the yarn pressing device includes a take-up roller 1, a support platform 3 and a tensioning mechanism 2, wherein the number of the tensioning mechanisms 2 is two, and the two tensioning mechanisms 2 are sequentially arranged on the same side of the take-up roller 1, and one of the two tensioning mechanisms 2 close to the take-up roller 1 is arranged on the ground, and the other is arranged on the support platform 3. The tensioning mechanism 2 includes a frame 201, a yarn pressing rod 202 and a yarn pressing line 203, the yarn pressing rod 202 is fixedly connected to the frame 201, the yarn pressing line 203 is connected to the frame 201 through an adjusting component, and the yarn pressing line 203 and the yarn pressing rod 202 are parallel to each other, and the adjusting component is used to adjust the tension of the yarn pressing line 203 and the height in the vertical direction.
[0035] By using the pad 3 to adjust the height, the relative height of the yarn pressing rods 202 in the two tensioning mechanisms 2 in the vertical direction can be changed. The yarn pressing rod 202 close to the take-up roller 1 is located below the yarn, and the yarn pressing wire 203 applies pressure to the yarn from above the yarn; the yarn pressing rod 202 of the other is located above the yarn, and the yarn pressing wire 203 applies pressure to the yarn from below the yarn. The two tensioning mechanisms 2 that apply pressure to the yarn from different directions can expand the range of the yarn pressure, make the force more uniform, and ensure that the fiber tension of the yarn can be maintained within a stable range during the entire take-up process, thereby improving the quality of the take-up.
[0036] like Figure 2 As shown, the adjustment component includes a mounting seat 204, and the mounting seat 204 has two longitudinal beams and a cross beam. The cross beam is arranged parallel to the yarn pressing rod 202, and the longitudinal beams are arranged at both ends of the cross beam, and the tops of the longitudinal beams are at the same height in the vertical direction. The combined structure of the longitudinal beam and the cross beam can play a positioning role for the subsequent installation of other components on the mounting seat 204, that is, the components installed along the extension direction of the longitudinal beam can ensure that they are parallel to the vertical direction. When the two components located on the two longitudinal beams maintain the same height in the vertical direction, the connection direction of the two is also parallel to the yarn pressing rod 202.
[0037] like Figure 2 As shown, the adjustment assembly also includes a tensioning wheel 205 and a motor 206. There are two tensioning wheels 205. The tensioning wheels 205 are respectively arranged at the top of the longitudinal beam and connected to the longitudinal beam through the wheel shaft 207. The central axis of the tensioning wheel 205 is perpendicular to the cross beam and the longitudinal beam at the same time. There are limit ribs 2051 on both sides of the tensioning wheel 205. The spacing of the limit ribs 2051 is equal to the diameter of the pressing yarn 203, and the outer peripheral wall of the limit ribs 2051 is provided with scale lines. The two ends of the pressing yarn 203 are respectively fixedly connected to the tensioning wheel 205. There are two motors 206. The motors 206 are fixedly connected to the longitudinal beam. The motors 206 are respectively connected to the tensioning wheels 205 to drive the tensioning wheels 205 to rotate around their own axes.
[0038] The two tensioning wheels 205 are arranged on the top of the longitudinal beam. Since the tops of the two longitudinal beams have the same height in the vertical direction, the two tensioning wheels 205 have the same height in the vertical direction. Therefore, the connecting direction of the two tensioning wheels 205 remains parallel to the yarn pressing rod 202. Since the two ends of the yarn pressing line 203 are respectively fixedly connected to the tensioning wheels 205, and since the limiting retaining edge 2051 can limit the horizontal position of the yarn pressing line 203 to avoid the displacement of the yarn pressing line 203, the projection of the yarn pressing line 203 on the horizontal plane is parallel to the yarn pressing rod 202.
[0039] The motor 206 drivingly connected to the tension wheel 205 can drive the tension wheel 205 to rotate around its own axis. When the tension wheel 205 rotates, the pressing yarn 203 will be wound around the tension wheel 205 under the action of the tension wheel 205, thereby causing the height of both ends of the portion of the pressing yarn 203 not wound around the tension wheel 205 to change. Before actual work, the staff needs to check the scales on the limit ribs 2051 of the two tension wheels 205 to make the two tension wheels 205 rotate at the same angle, thereby ensuring that the pressing yarn 203 is parallel to the pressing rod 202.
[0040] In actual work, when the tension of the pressing yarn 203 needs to be changed, the staff must drive the two tensioning wheels 205 to rotate at the same speed through the motor 206, so that the pressing yarn 203 remains parallel to the pressing yarn rod 202. In order to reduce pressure loss, when the pressing yarn rod 202 is located below the yarn and the pressing yarn 203 applies pressure to the yarn from above the yarn, the part of the pressing yarn 203 that is not wound around the tensioning wheel 205 is located below the central axis of the tensioning wheel 205; when the pressing yarn rod 202 is located above the yarn and the pressing yarn 203 applies pressure to the yarn from below the yarn, the part of the pressing yarn 203 that is not wound around the tensioning wheel 205 is located above the central axis of the tensioning wheel 205.
[0041] Taking the case where the portion of the pressing yarn 203 not wound around the tensioning wheel 205 is located below the central axis of the tensioning wheel 205 as an example, when the staff controls the two tensioning wheels 205 to rotate inward at the same time, the portion of the pressing yarn 203 not wound around the tensioning wheel 205 can be wound up, thereby increasing the tension of the pressing yarn 203; when the staff controls the two tensioning wheels 205 to rotate outward at the same time, the pressing yarn 203 wound around the tensioning wheel 205 can be released, thereby reducing the tension of the pressing yarn 203; Taking the example that the part of the pressure yarn 203 not wound around the tensioning wheel 205 is located above the central axis of the tensioning wheel 205, when the staff controls the two tensioning wheels 205 to rotate inward at the same time, the pressure yarn 203 wound around the tensioning wheel 205 can be released, thereby reducing the tension of the pressure yarn 203; when the staff controls the two tensioning wheels 205 to rotate outward at the same time, the part of the pressure yarn 203 not wound around the tensioning wheel 205 can be reeled in, thereby increasing the tension of the pressure yarn 203.
[0042] like Figure 2 As shown, a first gear 208 is fixedly connected to the wheel shaft 207, and a second gear 209 is provided at the output end of the motor 206, and the first gear 208 meshes with the second gear 209. When the motor 206 starts to work, the motor 206 drives the second gear 209 to rotate, and the first gear 208 rotates together with the first gear 208 under the meshing action with the second gear 209, thereby driving the tensioning wheel 205 coaxially connected to itself to rotate around its own axis direction, thereby realizing the driving connection between the motor 206 and the tensioning wheel 205.
[0043] In this embodiment, the compression yarn 203 is a polyurethane rope with a steel wire core. The steel wire core can improve the toughness of the compression yarn 203, and the polyurethane sheath wrapped outside can reduce the friction of the compression yarn 203 on the yarn, thereby improving the quality of the winding.
[0044] like Figure 2As shown, the adjustment assembly also includes a telescopic member 210, a vertical slide rail 211 and a slider 212. The telescopic member 210 body is relatively fixed to the frame 201. For example, when the frame 201 is installed on the ground, the telescopic member 210 body is also installed on the ground; when the frame 201 is installed on the pad 3, the telescopic member 210 body is also installed on the pad 3. The output end of the telescopic member 210 is arranged in the vertical direction and is connected to the crossbeam; the vertical slide rail 211 is fixedly connected to the frame 201, the slider 212 is fixedly connected to the mounting seat 204, and the slider 212 is slidably connected to the vertical slide rail 211. When the telescopic member 210 starts to work, the telescopic member 210 can drive the mounting seat 204 to move back and forth in the vertical direction, thereby playing a role in adjusting the height of the pressing yarn 203 in the vertical direction. The vertical slide rail 211 and the slider 212 can guide the mounting seat 204, so that the mounting seat 204 can move more smoothly in the vertical direction, thereby reducing the collapse caused by uneven tension. In this embodiment, the number of telescopic members 210 is two, and the telescopic members 210 use electric push rods. In some other embodiments, the telescopic members 210 can also use cylinders or hydraulic cylinders. The number of telescopic members 210 can also be selected in different numbers, and this application does not limit this.
[0045] The implementation principle of a yarn pressing device in the embodiment of the present application is:
[0046] Before the actual work, the staff needs to check the scales on the limit ribs 2051 of the two tensioning wheels 205 to make the two tensioning wheels 205 rotate at the same angle, so as to ensure that the pressing yarn 203 is parallel to the pressing yarn rod 202. Then, the pressing yarn 203 in one of the two tensioning mechanisms 2 close to the take-up roller 1 is adjusted to the top of its corresponding pressing yarn rod 202, and the pressing yarn 203 in one of the two tensioning mechanisms 2 far from the take-up roller 1 is adjusted to the bottom of its corresponding pressing yarn rod 202. Then, the yarn is pulled to pass through the two tensioning mechanisms 2 in the horizontal direction in sequence, so that the yarn is located between the pressing yarn rod 202 and the pressing yarn 203, and finally it is fixedly connected to the take-up roller 1.
[0047] After the yarn is pulled, the two retractable members 210 in the tensioning mechanism 2 control the yarn pressing wire 203 to be close to the yarn pressing rod 202 and to contact the yarn, thereby applying pressure to the yarn.
[0048] After completing the adjustment of the pressing yarn 203, the take-up roller 1 starts to work. As the take-up roller 1 reels the yarn, the effective reeling diameter of the take-up roller 1 continues to increase. At this time, the staff controls the motor 206 in the two tensioning mechanisms 2 to increase the tension of the pressing yarn 203, and controls the telescopic parts 210 in the two tensioning mechanisms 2 to make the pressing yarn 203 move away from the pressing rod 202 while maintaining contact with the yarn, thereby reducing the pressure applied to the yarn.
[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A yarn pressing device, characterized in that: include: A take-up roller (1) and a tensioning mechanism (2), wherein the tensioning mechanism (2) is arranged on one side of the take-up roller (1), and the tensioning mechanism (2) comprises a frame (201), a yarn pressing rod (202) and a yarn pressing line (203), wherein the yarn pressing rod (202) is fixedly connected to the frame (201), and the yarn pressing line (203) is connected to the frame (201) via an adjusting component, and the yarn pressing line (203) and the yarn pressing rod (202) are parallel to each other, and the adjusting component is used to adjust the tension of the yarn pressing line (203) and its height in the vertical direction.
2. The yarn pressing device according to claim 1, characterized in that: The adjustment component comprises a mounting seat (204), wherein the mounting seat (204) has two longitudinal beams and a transverse beam, wherein the transverse beams are arranged parallel to the yarn pressing rod (202), the longitudinal beams are arranged at both ends of the transverse beam, and the tops of the longitudinal beams have the same height in the vertical direction.
3. The yarn pressing device according to claim 2, characterized in that: The adjustment component comprises a tensioning wheel (205) and a motor (206). There are two tensioning wheels (205). The tensioning wheels (205) are respectively arranged on the top of the longitudinal beam, and the central axis of the tensioning wheel (205) is perpendicular to the cross beam and the longitudinal beam at the same time. The two ends of the pressing yarn (203) are respectively fixedly connected to the tensioning wheel (205). There are two motors (206). The motor (206) is fixedly connected to the longitudinal beam. The motor (206) is respectively connected to the tensioning wheel (205) to drive the tensioning wheel (205) to rotate around its own axis.
4. The yarn pressing device according to claim 3, characterized in that: The tension wheel (205) is connected to the longitudinal beam via a wheel axle (207), a first gear (208) is fixedly connected to the wheel axle (207), a second gear (209) is provided at the output end of the motor (206), and the first gear (208) is meshed with the second gear (209).
5. The yarn pressing device according to claim 3, characterized in that: The pressing yarn (203) is a polyurethane rope with a steel wire core.
6. The yarn pressing device according to claim 5, characterized in that: Limiting ribs (2051) are provided on both sides of the tensioning wheel (205), and the spacing between the limiting ribs (2051) is equal to the diameter of the pressing yarn (203).
7. The yarn pressing device according to claim 6, characterized in that: The outer peripheral wall of the limiting retaining edge (2051) is provided with scale lines.
8. The yarn pressing device according to claim 2, characterized in that: The adjustment component further comprises a telescopic member (210); the main body of the telescopic member (210) is relatively fixed to the frame (201); the output end of the telescopic member (210) is arranged in a vertical direction and is connected to the crossbeam.
9. The yarn pressing device according to claim 8, characterized in that: The adjustment assembly further comprises a vertical slide rail (211) and a slider (212); the vertical slide rail (211) is fixedly connected to the frame (201); the slider (212) is fixedly connected to the mounting seat (204); and the slider (212) is slidably connected to the vertical slide rail (211).
10. The yarn pressing device according to claim 1, characterized in that: The number of the tensioning mechanisms (2) is two, and the yarn pressing device also includes a pad (3). The two tensioning mechanisms (2) are arranged in sequence on the same side of the take-up roller (1), and one of the two tensioning mechanisms (2) close to the take-up roller (1) is arranged on the ground, and the other is arranged on the pad (3).