A pay-off stand with a shaft coupling

Abstract

The application relates to the technical field of beam wire machines, and discloses a pay-off rack with a shaft coupling device, which comprises a shaft coupling device and a wire reel; the shaft coupling device comprises a pair of shaft coupling units oppositely arranged along the axial direction; the shaft coupling unit comprises a fixing block, a transmission shaft, a first transmission housing, a second transmission housing, a rotating shaft, a clamping assembly and a driving assembly; the transmission shaft is arranged in the first transmission housing and connected with the driving assembly; the second transmission housing is arranged outside the first transmission housing, and a first rotating supporting structure is arranged between the first transmission housing and the second transmission housing; the rotating shaft is arranged on the second transmission housing; the clamping assembly is arranged at the other end of the transmission shaft and connected with the transmission shaft; one end of the wire reel is connected with the rotating shaft, the other end is connected with the clamping assembly, and the wire reel is arranged outside the second transmission housing. The application reduces the swing and deviation of the rotating shaft and improves the stability of the pay-off process.

Description

Technical Field

[0001] This invention relates to the field of wire harnessing technology, and more specifically, to a wire feeding frame with a coupling device. Background Technology

[0002] During the bundling, braiding, or winding of wires, cables, or optical fibers by a wire bundling machine, a wire feeding frame is usually needed to support the wire reel in order to achieve synchronous feeding of multiple strands of wire. In the prior art, the wire feeding frame is generally equipped with rotating shafts on both sides of the equipment, and the wire reel is supported and rotated by fitting its two ends onto the corresponding rotating shafts.

[0003] However, in actual use, because the wire reel is usually suspended and has a large weight, it is prone to generating a large off-center torque at the shaft during rotation and wire feeding. This causes the shaft to swing or shift inside the equipment, affecting the stability of wire feeding and, in severe cases, causing fluctuations in wire tension and reducing the quality of the bundled wire. Furthermore, existing wire feeding racks often use manual tightening or simple snap-fit ​​structures for fixing the wire reel, which is cumbersome and inefficient. Under high-speed wire feeding conditions, the reel is prone to loosening or relative slippage, affecting the reliability of the equipment. In addition, existing technologies typically use a single method for positioning the wire reel. When the reel experiences slight axial or circumferential movement during operation, there is a lack of effective adaptive locking and positioning mechanisms, which can easily lead to inaccurate reel positioning, affecting wire feeding accuracy and the stability of subsequent bundling processes.

[0004] Therefore, it is necessary to design a wire feeder with a coupling device to solve the problems existing in the current technology. Summary of the Invention

[0005] In view of this, the present invention proposes a wire feeding frame with a coupling device, which aims to solve the problem that a large off-center load torque is easily generated at the rotating shaft when rotating the wire feeding frame, and the wire spool is prone to loosening or relative slippage, which affects the wire feeding accuracy.

[0006] This invention proposes a wire feeder with a coupling device, including a coupling device and a wire reel; The coupling device includes a pair of coupling units arranged opposite each other along the axial direction; the coupling unit includes a fixed block, a transmission shaft, a first transmission housing, a second transmission housing, a rotating shaft, a clamping assembly, and a driving assembly; The drive shaft passes through the first transmission housing and is connected to the drive assembly; The second transmission housing is sleeved on the outside of the first transmission housing, and a first rotational support structure is provided between the first transmission housing and the second transmission housing; The rotating shaft is mounted on the second transmission housing; The clamping assembly is disposed at the other end of the drive shaft and connected to the drive shaft; One end of the coil is connected to the rotating shaft, and the other end is connected to the clamping assembly, and is sleeved on the outside of the second transmission housing.

[0007] Furthermore, the drive assembly includes a cylinder and a connecting shaft, the output end of the cylinder is connected to the connecting shaft, and the connecting shaft is connected to the transmission shaft.

[0008] Furthermore, there are two cylinders, which are respectively connected to both ends of the connecting shaft; the middle part of the connecting shaft is fixedly connected to one end of the transmission shaft.

[0009] Furthermore, a limiting head is fixedly connected to the other end of the drive shaft.

[0010] Furthermore, the first rotating support structure is a rotating roller disposed between the first transmission housing and the second transmission housing; a set of the rotating roller is respectively disposed at both ends of the axial direction.

[0011] Furthermore, the rotating shaft is sleeved on one end of the second transmission housing; the rotating shaft is provided with a retractable positioning pin, and the end face of the coil is provided with a positioning hole that cooperates with the positioning pin.

[0012] Furthermore, the clamping assembly includes a plurality of claws, which are connected to the clamping assembly via connecting rods, and the clamping assembly is provided with guide grooves for the claws to move.

[0013] Furthermore, an elastic element is connected between the clamping assembly and the second transmission housing, and a third transmission housing is sleeved on the outside of the second transmission housing. One end of the third transmission housing is fixedly connected to the second transmission housing, and the other end is fixedly connected to the clamping assembly.

[0014] Furthermore, a second rotating support structure is provided between the clamping assembly and the transmission shaft; the second rotating support structure is a rotating roller.

[0015] Furthermore, the second transmission housing is provided with a positioning key strip, and the third transmission housing and the coil are provided with structural holes that cooperate with the positioning key strip.

[0016] Compared with the prior art, the beneficial effects of this invention are as follows: By setting a pair of coupling units arranged axially opposite each other, and with each coupling unit supporting both ends of the reel, the reel forms a symmetrical force structure on both sides during the wire feeding process. This disperses the weight of the reel and the off-center load torque generated during operation, thereby reducing excessive force on one side of the shaft, reducing shaft sway and offset, and improving the stability of the wire feeding process. By setting a connection structure between the drive shaft and the clamping assembly in the coupling unit, the drive shaft can be driven to generate axial movement under the action of the drive assembly, thereby driving the clamping assembly to automatically clamp or release the end of the reel. No manual external fastening is required, simplifying the reel loading and unloading process, improving work efficiency, and reducing the labor intensity of operators. By connecting one end of the reel to the shaft and the other end to the clamping assembly, the reel achieves double-end limiting and clamping cooperation, effectively constraining the reel in both axial and radial directions, thereby improving the reliability of reel installation. By setting a rotating support structure between the first transmission housing and the second transmission housing, the second transmission housing can rotate smoothly relative to the first transmission housing, thereby ensuring the smoothness of the coil rotation process and improving the stability and service life of the equipment. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of a wire feeder with a coupling device provided in an embodiment of the present invention; Figure 2 A schematic diagram of a wire reel structure with a coupling device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of a wire feeder with a coupling device provided in an embodiment of the present invention; Figure 4 A side view of a wire feeder with a coupling device provided in an embodiment of the present invention; Figure 5 A cross-sectional view at point A of a wire feeder with a coupling device provided in an embodiment of the present invention; Figure 6 This is an enlarged view of section B of the pay-off frame with a coupling device provided in an embodiment of the present invention.

[0018] The components are as follows: 1. spool; 2. fixing block; 3. drive shaft; 4. first drive housing; 5. second drive housing; 6. rotating shaft; 7. clamping assembly; 8. first rotating support structure; 9. cylinder; 10. connecting shaft; 11. limiting head; 12. positioning pin; 13. claw head; 14. connecting rod; 15. guide groove; 16. elastic element; 17. third drive housing; 18. second rotating support structure; 19. positioning key strip. Detailed Implementation

[0019] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] In some embodiments of this application, see Figure 1-6 As shown, a wire feeder with a coupling device is proposed, including a coupling device and a wire reel 1; The coupling device includes a pair of coupling units arranged opposite each other along the axial direction; the coupling unit includes a fixed block 2, a transmission shaft 3, a first transmission housing 4, a second transmission housing 5, a rotating shaft 6, a clamping assembly 7, and a driving assembly; The drive shaft 3 passes through the first transmission housing 4 and is connected to the drive assembly; The second transmission housing 5 is sleeved on the outside of the first transmission housing 4, and a first rotational support structure 8 is provided between the first transmission housing 4 and the second transmission housing 5. The rotating shaft 6 is mounted on the second transmission housing 5; The clamping assembly 7 is disposed at the other end of the drive shaft 3 and connected to the drive shaft 3; One end of the coil 1 is connected to the rotating shaft 6, and the other end is connected to the clamping assembly 7, and is sleeved on the outside of the second transmission housing 5.

[0021] Specifically, the wire feeder with a coupling device includes a coupling device and a wire reel 1. The coupling device consists of a pair of coupling units arranged axially opposite each other, which are used to support and clamp the two ends of the wire reel 1. Each coupling unit includes a fixing block 2, a drive shaft 3, a first drive housing 4, a second drive housing 5, a rotating shaft 6, a clamping assembly 7, and a drive assembly. The fixing block 2 is used to install and fix the first drive housing 4 and the drive assembly, thereby providing a stable installation base for the entire coupling unit. The drive shaft 3 passes through the inside of the first drive housing 4 and is connected to the drive assembly, and can generate axial displacement under the action of the drive assembly; the first drive housing 4 guides and supports the drive shaft 3. The second drive housing 5 is sleeved on the outside of the first drive housing 4, and a first rotational support structure 8 is provided between the two, so that the second drive housing 5 can rotate smoothly relative to the first drive housing 4, thereby providing rotational support for the external wire reel 1. The rotating shaft 6 is mounted on the second transmission housing 5 and rotates synchronously with it. It is used to connect to one end of the coil 1 to achieve positioning and power transmission on one side of the coil 1. The clamping assembly 7 is located at the end of the transmission shaft 3 away from the drive assembly and is connected to the transmission shaft 3. When the transmission shaft 3 moves axially, it drives the clamping assembly 7 to move synchronously to clamp or release the other end of the coil 1. When the coil 1 is installed, one end is connected to the rotating shaft 6, and the other end is clamped and fixed by the clamping assembly 7. The entire coil is axially sleeved on the outside of the second transmission housing 5, thus forming a double-end support and clamping structure between the two coupling units. This ensures the stable installation of the coil 1 while enabling it to rotate smoothly under the drive of the second transmission housing 5.

[0022] In some embodiments of this application, the drive assembly includes a cylinder 9 and a connecting shaft 10, the output end of the cylinder 9 is connected to the connecting shaft 10, and the connecting shaft 10 is connected to the transmission shaft 3.

[0023] Specifically, the drive assembly includes a cylinder 9 and a connecting shaft 10. The cylinder 9 is preferably a linear reciprocating drive element, and its output end is connected to the end of the connecting shaft 10 by a screw or pin, so that the linear output motion of the cylinder 9 can be transmitted to the connecting shaft 10. The connecting shaft 10 is then connected to the transmission shaft 3, thereby converting the driving force of the cylinder 9 into the axial displacement of the transmission shaft 3, and realizing the drive of the subsequent clamping assembly 7.

[0024] In some embodiments of this application, there are two cylinders 9, which are respectively connected to the two ends of the connecting shaft 10; the middle part of the connecting shaft 10 is fixedly connected to one end of the transmission shaft 3.

[0025] Specifically, there are two cylinders 9 arranged symmetrically, and their output ends are respectively connected to the two ends of the connecting shaft 10. The connecting shaft 10 is subjected to more balanced force through the dual-side synchronous drive. The middle part of the connecting shaft 10 is fixedly connected to one end of the transmission shaft 3, so that when the two cylinders 9 act synchronously, the transmission shaft 3 can be driven to move stably along the axial direction, avoiding the phenomenon of uneven load or jamming caused by single-side drive.

[0026] In some embodiments of this application, the other end of the drive shaft 3 is fixedly connected to a limiting head 11.

[0027] Specifically, a limiting head 11 is fixedly provided at the end of the drive shaft 3 away from the connecting shaft 10. The limiting head 11 is installed at the end of the drive shaft 3 by means of threaded connection or screw fastening, and is used to limit the axial movement range of the clamping assembly 7, thereby preventing the clamping assembly 7 from disengaging or overtraveling during the movement, and improving the reliability of the overall structure.

[0028] In some embodiments of this application, the first rotating support structure 8 is a rotating roller disposed between the first transmission housing 4 and the second transmission housing 5; a set of rotating rollers is respectively disposed at both ends of the axial direction.

[0029] Specifically, the first rotating support structure 8 adopts the form of a rotating roller and is set between the first transmission housing 4 and the second transmission housing 5. A set of rotating rollers is set at each of the two ends in the axial direction. Through the multi-point support method, the second transmission housing 5 rotates more smoothly relative to the first transmission housing 4, effectively reducing frictional resistance and improving rotational accuracy.

[0030] In some embodiments of this application, the rotating shaft 6 is sleeved on one end of the second transmission housing 5; the rotating shaft 6 is provided with a retractable positioning pin 12, and the end face of the coil 1 is provided with a positioning hole that cooperates with the positioning pin 12.

[0031] Specifically, the rotating shaft 6 is sleeved on one end of the second transmission housing 5 and forms a fixed connection or synchronous rotation relationship with the second transmission housing 5; a retractable positioning pin 12 is provided on the side of the rotating shaft 6. The positioning pin 12 can extend or retract in the radial direction. When the coil 1 is installed in place, the positioning pin 12 extends into the positioning hole provided on the end face of the coil 1, thereby realizing a quick positioning connection between the coil 1 and the rotating shaft 6 and preventing the coil 1 from circumferentially slipping during rotation.

[0032] In some embodiments of this application, the clamping assembly 7 includes a plurality of claws 13, which are connected to the clamping assembly 7 via connecting rods 14, and the clamping assembly 7 is provided with guide grooves 15 for the claws 13 to move.

[0033] Specifically, the clamping assembly 7 includes multiple claws 13, preferably four claws 13, which are interconnected by a connecting rod 14 and are evenly distributed in the circumferential direction. The clamping assembly 7 is provided with a guide groove 15, and each claw 13 slides radially in the guide groove 15, so that when the clamping assembly 7 moves as a whole, the claws 13 can synchronously contract or open to adapt to the inner hole structure of the coil 1 of different sizes.

[0034] In some embodiments of this application, an elastic element 16 is connected between the clamping assembly 7 and the second transmission housing 5, and a third transmission housing 17 is sleeved on the outside of the second transmission housing 5. One end of the third transmission housing 17 is fixedly connected to the second transmission housing 5, and the other end is fixedly connected to the clamping assembly 7.

[0035] Specifically, an elastic element 16 is provided between the clamping assembly 7 and the second transmission housing 5. The elastic element 16 is preferably a tension spring, with one end connected to the clamping assembly 7 and the other end connected to the second transmission housing 5, so that the clamping assembly 7 is always subjected to elastic tension during movement. At the same time, a third transmission housing 17 is sleeved on the outside of the second transmission housing 5. One end of the third transmission housing 17 is fixed to the second transmission housing 5 and the other end is fixed to the clamping assembly 7, thereby forming a covering structure for the elastic element 16, which can both protect the elastic element 16 and guide the clamping assembly 7.

[0036] In some embodiments of this application, a second rotating support structure 18 is further provided between the clamping assembly 7 and the transmission shaft 3; the second rotating support structure 18 is a rotating roller.

[0037] Specifically, a second rotating support structure 18 is provided between the clamping assembly 7 and the transmission shaft 3. The second rotating support structure 18 also adopts the form of a rotating roller, so that the clamping assembly 7 can rotate relative to the transmission shaft 3 while moving axially with the transmission shaft 3, thereby reducing the impact of torque transmission on the clamping assembly 7 during rotation and improving the smoothness of operation.

[0038] In some embodiments of this application, the second transmission housing 5 is provided with a positioning key strip 19, and the third transmission housing 17 and the coil 1 are provided with structural holes that cooperate with the positioning key strip 19.

[0039] Specifically, the outer surface of the second transmission housing 5 is provided with a positioning key 19 extending along the axial direction. The third transmission housing 17 and the coil 1 are respectively provided with structural holes that match the positioning key 19. The positioning key 19 passes through the third transmission housing 17 and is embedded in the corresponding structural hole of the coil 1, thereby realizing the circumferential limiting connection between the second transmission housing 5 and the coil 1, so that the coil 1 can rotate synchronously with the second transmission housing 5, while preventing the coil 1 from sliding relative to each other during operation.

[0040] The working process and principle are as follows: the clamping assembly 7 is controlled by the drive assembly. When the two cylinders 9 operate synchronously, their output ends drive the connecting shaft 10 to move axially. The connecting shaft 10 then drives the transmission shaft 3 to reciprocate axially within the first transmission housing 4. When the cylinders 9 drive the transmission shaft 3 to move outward, the transmission shaft 3 drives the clamping assembly 7 to move away from the second transmission housing 5. At the same time, the elastic element 16 is stretched. Under the guidance of the guide groove 15, each claw 13 retracts radially inward, thereby reducing the outer diameter of the clamping assembly 7 so that the spool 1 can be fitted onto it. The second transmission housing 5 is located outside, and one end of the wire reel 1 is connected to the rotating shaft 6. At this time, the retractable positioning pin 12 on the rotating shaft 6 is inserted into the positioning hole on the end face of the wire reel 1 to achieve positioning of one end of the wire reel 1. Then the cylinder 9 moves in the opposite direction, driving the transmission shaft 3 to move inward. Under the pulling force of the elastic element 16, the clamping assembly 7 moves back towards the second transmission housing 5. Each claw head 13 opens outward along the guide groove 15 and abuts against the inner side of the other end of the wire reel 1, thereby achieving clamping and fixing of the wire reel 1. At the same time, the limiting head 11 limits the movement stroke of the clamping assembly 7 to ensure clamping stability. During normal wire feeding, external power is input through the rotating shaft 6, causing the second transmission housing 5 to rotate smoothly relative to the first transmission housing 4 under the support of the first rotating support structure 8. The rotating shaft 6 drives one end of the wire reel 1 to rotate synchronously. Simultaneously, the wire reel 1 forms a circumferential linkage with the second transmission housing 5 and the third transmission housing 17 through the positioning key 19, causing the entire wire reel 1 to rotate synchronously with the second transmission housing 5. Meanwhile, the clamping assembly 7 can rotate relative to the transmission shaft 3 under the action of the second rotating support structure 18, thereby avoiding the influence of torque on the axial movement of the transmission shaft 3. Thus, the wire reel 1 achieves stable support and synchronous rotation under the combined action of being positioned at both ends by the rotating shaft 6 and clamped by the clamping assembly 7, ensuring the smoothness of the wire feeding process and improving the efficiency of wire reel 1 clamping and replacement.

[0041] In summary, by setting up a pair of coupling units arranged axially opposite each other, with each coupling unit supporting both ends of the reel 1, the reel 1 forms a symmetrical force structure on both sides during the wire feeding process. This disperses the weight of the reel 1 and the off-center load torque generated during operation, thereby reducing excessive force on one side of the rotating shaft 6, reducing the sway and offset of the rotating shaft 6, and improving the stability of the wire feeding process. By setting a connection structure between the drive shaft 3 and the clamping assembly 7 in the coupling unit, the drive shaft 3 can be driven to generate axial movement under the action of the drive assembly, thereby driving the clamping assembly 7 to automatically clamp or release the end of the reel 1. This eliminates the need for manual external fastening, simplifies the loading and unloading process of the reel 1, improves work efficiency, and reduces the labor intensity of operators. By connecting one end of the reel 1 to the rotating shaft 6 and the other end to the clamping assembly 7, the reel 1 achieves double-end limiting and clamping cooperation, effectively constraining the reel 1 in both axial and radial directions, thereby improving the reliability of the reel 1 installation. By setting a rotating support structure between the first transmission housing 4 and the second transmission housing 5, the second transmission housing 5 can rotate smoothly relative to the first transmission housing 4, thereby ensuring the smoothness of the coil 1 during rotation and improving the stability and service life of the equipment.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the present invention.

Claims

1. A wire feeder with a coupling device, characterized in that, Includes couplings and coils; The coupling device includes a pair of coupling units arranged opposite each other along the axial direction; the coupling unit includes a fixed block, a transmission shaft, a first transmission housing, a second transmission housing, a rotating shaft, a clamping assembly, and a driving assembly; The drive shaft passes through the first transmission housing and is connected to the drive assembly; The second transmission housing is sleeved on the outside of the first transmission housing, and a first rotational support structure is provided between the first transmission housing and the second transmission housing; The rotating shaft is mounted on the second transmission housing; The clamping assembly is disposed at the other end of the drive shaft and connected to the drive shaft; One end of the coil is connected to the rotating shaft, and the other end is connected to the clamping assembly, and is sleeved on the outside of the second transmission housing.

2. The wire feeder with a coupling device according to claim 1, characterized in that, The drive assembly includes a cylinder and a connecting shaft, the output end of the cylinder is connected to the connecting shaft, and the connecting shaft is connected to the transmission shaft.

3. The wire feeder with a coupling device according to claim 2, characterized in that, There are two cylinders, which are respectively connected to the two ends of the connecting shaft; the middle part of the connecting shaft is fixedly connected to one end of the transmission shaft.

4. The wire feeder with a coupling device according to claim 3, characterized in that, The other end of the drive shaft is fixedly connected to a limiting head.

5. The wire feeder with a coupling device according to claim 1, characterized in that, The first rotating support structure is a rotating roller disposed between the first transmission housing and the second transmission housing; a set of the rotating roller is disposed at each of the two ends in the axial direction.

6. The wire feeder with a coupling device according to claim 1, characterized in that, The rotating shaft is sleeved on one end of the second transmission housing; the rotating shaft is provided with a retractable positioning pin, and the end face of the coil is provided with a positioning hole that cooperates with the positioning pin.

7. The wire feeder with a coupling device according to claim 1, characterized in that, The clamping assembly includes multiple claws, which are connected to the clamping assembly via connecting rods, and the clamping assembly is provided with guide grooves for the movement of the claws.

8. The wire feeder with a coupling device according to claim 1, characterized in that, An elastic element is connected between the clamping assembly and the second transmission housing, and a third transmission housing is sleeved on the outside of the second transmission housing. One end of the third transmission housing is fixedly connected to the second transmission housing, and the other end is fixedly connected to the clamping assembly.

9. The wire feeder with a coupling device according to claim 1, characterized in that, A second rotating support structure is also provided between the clamping assembly and the drive shaft; the second rotating support structure is a rotating roller.

10. The wire feeder with a coupling device according to claim 8, characterized in that, The second transmission housing is provided with a positioning key strip, and the third transmission housing and the coil are provided with structural holes that cooperate with the positioning key strip.

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