Automatic tension pay-off stand

Abstract

The utility model relates to a kind of automatic tension pay-off rack in the field of pay-off rack, including bottom plate, bottom plate is connected with base, rotatable central shaft is connected on base, the central shaft is connected with slide rail, slide rail extends distribution along the axial direction of central shaft, and slide rail is connected with the slider that can reciprocate along slide rail, slider is connected with sliding roller by sliding support, and counterweight is arranged on sliding support, the end of central shaft away from bottom plate is connected with wire wheel, and the end of central shaft close to bottom plate is connected with adjusting rod by mounting block, and the end of adjusting rod is connected with adjusting guide roller, the utility model is by the setting of slider and slide rail, so that sliding roller can apply downward tension to wire rod by the weight of counterweight, wire rod can maintain certain tension in the process of pay-off, play certain buffering effect, reduce the shaking and entanglement confusion phenomenon of wire rod, make the conveying of wire rod more stable, enhance the stability and reliability of wire rod conveying.

Description

Technical Field

[0001] This utility model relates to the field of wire feeding frames, specifically to an automatic tension wire feeding frame. Background Technology

[0002] In industrial production fields such as wire and cable manufacturing, textiles, and metal wire and filament production, pay-off frames are key equipment for wire conveying, and their performance directly affects the stability of wire conveying and processing quality. Automatic tension pay-off frames belong to the field of wire handling equipment technology. Their core function is to achieve continuous and stable wire conveying by supporting and releasing the wire spool, providing a fundamental guarantee for subsequent processes such as stranding, extrusion, braiding, or equipment feeding. With the increasing level of industrial automation, the technological development of pay-off frames has gradually evolved from manual operation to intelligent and high-precision systems. Especially in high-speed, long-distance wire conveying scenarios, higher requirements are placed on the stability, tension control, and anti-interference capabilities of pay-off frames.

[0003] Traditional wire unwinding frames typically consist of a frame, a wire spool support shaft, a braking device, and guide wheels. In use, the wire spool is fitted onto the support shaft, and the braking device applies resistance to control the unwinding speed. The guide wheels are used to adjust the wire output direction. In practical applications, the wire is wound through the guide wheels and connected to subsequent equipment, allowing external force to be applied to the wire for automatic unwinding.

[0004] However, existing wire feeding frames have significant drawbacks in practical applications: their current wire feeding structure is relatively simple, lacking an effective dynamic tension adjustment mechanism and buffer structure design, leading to wire slippage and loosening during the feeding process. Specifically, when the wire is transported due to large tension fluctuations and insufficient buffering, problems such as wire swaying and tangling often occur. This not only affects the stable feeding of the wire but also results in low feeding control accuracy and poor reliability, making it unable to adapt to high-speed, continuous production cycles and becoming a technical bottleneck restricting the improvement of production efficiency and product quality. Therefore, there is an urgent need to develop a new type of wire feeding frame with automatic tension adjustment and buffering functions to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned deficiencies by providing an automatic tension pay-off frame. This addresses the technical problem in the background art of how to enable automatic tension adjustment and buffering of the pay-off frame, thereby improving tension control and enhancing the stability and reliability of pay-off control.

[0006] The objective of this utility model is achieved through the following means:

[0007] An automatic tension wire feeding frame includes a base plate with a base connected to it. A rotatable central shaft is connected to the base plate. A deflector wheel is connected to the end of the central shaft near the base plate. An adjusting belt for adjusting frictional resistance is provided on the base plate. A slide rail is connected to the central shaft, extending axially along the central shaft. A slider that can reciprocate along the slide rail is connected to the slide rail. A sliding roller is connected to the slider via a sliding bracket. A detachable counterweight is paired on the sliding bracket. A guide wheel is connected to the end of the central shaft away from the base plate. An adjusting rod is connected to the end of the central shaft near the base plate via a mounting block. The adjusting rod can be adjusted radially, and an adjusting guide wheel is connected to the end of the adjusting rod. When the wire passes through the adjusting guide wheel, the guide wheel, and the sliding roller in sequence, the weight of the counterweight on the sliding roller applies a downward tension force to the wire.

[0008] Furthermore, as described above, the central shaft is mounted on the base via bearings, and the end of the central shaft is vertically positioned through the base plate. The anti-rotation wheel is fixedly connected to the central shaft, enabling the central shaft to drive the anti-rotation wheel to rotate synchronously.

[0009] The central shaft is vertically mounted through the base plate and drives the anti-rotation wheel to rotate synchronously, making the central shaft rotate more smoothly. The anti-rotation wheel can rotate stably with the central shaft. By adjusting the belt to adjust the frictional resistance with the anti-rotation wheel, stable tension control and self-locking brake stop in case of abnormal wire breakage are provided, thereby better realizing tension adjustment, avoiding tension fluctuations caused by unstable rotation of the central shaft, and enhancing the stability of wire feeding control.

[0010] Furthermore, as described above, the sliding bracket is connected to the slider, one end of the sliding bracket is bent to form a support part for supporting the counterweight, and a guide post for passing through the counterweight is connected to the support part, and the other end of the sliding bracket is bent to form a mounting part for installing the sliding roller.

[0011] One end of the sliding bracket is equipped with a support section and guide post for supporting and mounting the counterweight, while the other end is equipped with an installation section for mounting the sliding roller. This allows the counterweight to be stably placed on the support section. The guide post allows for easy addition or removal of the counterweight, while the sliding roller is stably mounted on the installation section. This enables the sliding roller to apply a stable downward pressure and tension force to the wire according to the weight of the counterweight, effectively solving the problem of loosening caused by insufficient tension during wire laying and enhancing the reliability of wire laying control and the downward pressure buffering effect.

[0012] Furthermore, as described above, the end of the central shaft away from the base plate is connected to a wire-feeding sleeve via a mounting bracket, and the wire-feeding sleeve has a through-hole for wire feeding.

[0013] By installing brackets to connect the wire feeding sleeve and opening wire feeding holes, the wire feeding sleeve can protect and guide the wire, while the wire feeding holes can standardize the wire feeding path, ensure stable wire feeding, and improve the accuracy of wire feeding control.

[0014] Furthermore, as described above, the mounting block is connected to the central shaft via mounting holes, and the mounting block has a locking hole for inserting an adjusting rod. One end of the adjusting rod is inserted into the locking hole, and the other end of the adjusting rod is bent to form a connecting portion.

[0015] By connecting the adjusting rod to the locking hole, the position of the adjusting rod can be flexibly adjusted according to actual needs, thereby driving the adjusting guide wheel to adjust its position to adapt to the unwinding adjustment requirements of different wires. This ensures that the wire is stably unwound and conveyed under the rotation of the adjusting rod driven by the central shaft, enhancing the adaptability and stability of the unwinding control.

[0016] Furthermore, as described above, the adjusting guide wheel is connected to the connecting part via a connecting bracket, and a threading sleeve is connected to the connecting bracket, with a through threading hole on the threading sleeve.

[0017] The wire guide sleeve protects and guides the wire as it is guided through the adjusting guide wheel. The wire hole further regulates the direction of the wire, preventing it from shaking or falling off at the adjusting guide wheel, ensuring stable wire delivery and improving the reliability of wire feeding control.

[0018] Furthermore, as described above, an adjustment bracket is provided on the base plate, the inner side of the adjustment belt makes frictional contact with the anti-rotation wheel, and the end of the adjustment belt passes through the anti-rotation wheel and is connected to the adjustment bracket.

[0019] The inner side of the adjusting belt is in frictional contact with the anti-rotation wheel and its end is connected to the adjusting bracket. By adjusting the frictional resistance between the adjusting belt and the anti-rotation wheel, the rotational resistance of the central shaft can be adjusted, thereby adjusting the tension of the wire. This provides an effective tension adjustment mechanism for the pay-off frame. At the same time, the rotation of the central shaft drives the adjusting rod to rotate in a circle, which causes the adjusting guide wheel to drive the wire to be unwound radially. When there is no wire or the wire breaks, the tension on the adjusting guide wheel disappears, and the friction between the anti-rotation wheel and the adjusting belt prevents rotation and automatically brakes and stops the machine, enhancing the accuracy and reliability of pay-off control.

[0020] The beneficial effects of this utility model are as follows: When the wire passes through the adjusting guide wheel, guide wheel, and sliding roller in sequence, the wire is subjected to external force, which drives the sliding roller to lift and pull it up. The adjusting guide wheel is also driven by tension, causing the central shaft to rotate the adjusting rod and adjusting guide wheel in a circular motion to release the wire. During the wire's transport, as the central shaft drives the adjusting rod and adjusting guide wheel to rotate intermittently radially, a slider that can reciprocate along the slide rail is provided. This slider is connected to the sliding roller via a sliding bracket, and the sliding bracket is equipped with detachable counterweights. The weight of the counterweights on the sliding roller applies downward tension to the wire, allowing the wire to maintain a certain tension during release. This provides a buffering effect, effectively absorbing the impact force of the wire, reducing swaying and tangling, and making the wire transport more stable. It avoids the problem of wire falling off or loosening due to insufficient tension, ensuring the stability and reliability of the wire transport. Attached Figure Description

[0021] Figure 1 This is a top-view schematic diagram of the overall structure of this embodiment;

[0022] Figure 2 This is a schematic diagram of the overall structure from a bottom-view perspective in this embodiment;

[0023] Figure 3 This is a schematic diagram of the structure of this embodiment;

[0024] Figure 4 This is a cross-sectional view of this embodiment;

[0025] Figure 5 This is a schematic diagram illustrating the usage state of this embodiment;

[0026] The reference numerals in the diagram are as follows: 1-base plate, 2-base, 3-central shaft, 4-rotation wheel, 5-adjusting belt, 6-slide rail, 7-slider, 8-sliding bracket, 9-sliding roller, 10-counterweight, 11-guide wheel, 12-adjusting rod, 13-adjusting guide wheel, 14-bearing, 15-support part, 16-guide post, 17-mounting part, 18-line sheath, 19-line hole, 20-mounting hole, 21-locking hole, 22-threading sheath, 23-threading hole, 24-adjusting bracket, 25-mounting block. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer, the following describes the solution in further detail with reference to the accompanying drawings and embodiments.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] In this embodiment, refer to Figures 1-5 The automatic tension pay-off frame, specifically implemented therein, includes a base plate 1, a base 2 connected to the bottom of the base plate 1, a rotatable central shaft 3 connected to the base 2, a deflector wheel 4 connected to the end of the central shaft 3 near the base plate 1, an adjusting belt 5 for adjusting frictional resistance provided on the base plate 1, a slide rail 6 connected to the central shaft 3, the slide rail 6 extending along the axial direction of the central shaft 3, and a slider 7 that can reciprocate along the slide rail 6 connected to the slide rail 6, the slider 7 being connected to a sliding roller via a sliding bracket 8. 9. A detachable counterweight 10 is paired on the sliding bracket 8. A guide wheel 11 is connected to the end of the central shaft 3 away from the base plate 1, and an adjusting rod 12 is connected to the end of the central shaft 3 near the base plate 1 through the mounting block 25. The adjusting rod 12 can be adjusted by extending and retracting in the radial direction, and an adjusting guide wheel 13 is connected to the end of the adjusting rod 12. When the wire passes through the adjusting guide wheel 13, the guide wheel 11 and the sliding roller 9 in sequence, the weight of the counterweight 10 on the sliding roller 9 can apply a downward pressure tension to the wire.

[0031] One end of the base 2 extends through the base plate 1 to the bottom of the base plate 1. The base 2 has a central hole for the central shaft 3 to pass through, so that the central hole is coaxially connected to the central shaft 3 through the ball bearing 14. The bottom of the base plate 1 is used to abut against the wire reel, so that the bottom end of the base 2 can pass through the through hole of the wire reel.

[0032] The automatic tension pay-off frame in this embodiment features automatic tension adjustment and buffering functions, which solves problems such as wire swaying and tangling found in existing pay-off frames, improving the stability and reliability of pay-off control. Therefore, it can better adapt to high-speed, continuous production cycles, meeting the requirements of modern production for pay-off frames and contributing to improved production efficiency and product quality.

[0033] The central shaft 3 is mounted on the base 2 via a bearing 14, and the end of the central shaft 3 is vertically set through the base plate 1. The anti-rotation wheel 4 is fixedly connected to the central shaft 3, so that the central shaft 3 can drive the anti-rotation wheel 4 to rotate synchronously.

[0034] The central shaft 3 is vertically set through the base plate 1 and drives the anti-rotation wheel 4 to rotate synchronously, making the rotation of the central shaft 3 more stable. The anti-rotation wheel 4 can rotate stably with the central shaft 3. By adjusting the frictional resistance with the anti-rotation wheel 4 through the belt 5, stable tension control and self-locking brake stop in case of abnormal wire breakage are provided, thereby better realizing tension adjustment, avoiding tension fluctuations caused by unstable rotation of the central shaft 3, and enhancing the stability of wire feeding control.

[0035] Specifically, the base 2 is fixedly connected to the base plate 1, one end of the central shaft 3 is rotatably connected to the base 2 through a ball bearing 14, and the other end of the central shaft 3 is exposed on the top of the base plate 1. The slide rail 6 is connected to the central shaft 3 by bolts, so that the rotation of the central shaft 3 can drive the slide rail 6 to rotate synchronously.

[0036] The sliding bracket 8 is connected to the slider 7. One end of the sliding bracket 8 is bent to form a support part 15 for supporting the counterweight 10. A guide post 16 for passing through the counterweight 10 is connected to the support part 15. The other end of the sliding bracket 8 is bent to form a mounting part 17 for mounting the sliding roller 9.

[0037] One end of the sliding bracket 8 is provided with a support part 15 and a guide post 16 for supporting and passing the counterweight 10, and the other end is provided with an installation part 17 for installing the sliding roller 9. This allows the counterweight 10 to be stably placed on the support part 15. The counterweight 10 can be easily added or removed through the guide post 16. At the same time, the sliding roller 9 can be stably installed on the installation part 17, so that the sliding roller 9 can apply a stable downward pressure tension to the wire according to the weight of the counterweight 10. This effectively solves the problem of loosening due to insufficient tension during wire laying, and enhances the reliability of wire laying control and the downward pressure buffering effect.

[0038] The sliding roller 9 can drive the sliding bracket 8 to move up and down by the traction of the wire. At the same time, due to the influence of the gravity of the counterweight 10 and the sliding roller 9, when the unwinding traction of the wire stops or disappears, the sliding bracket 8 moves downward under the influence of gravity, thereby pressing and tensioning the wire.

[0039] The end of the central shaft 3 away from the base plate 1 is connected to a wire feeding sleeve 18 via a mounting bracket, and the wire feeding sleeve 18 has a through wire feeding hole 19.

[0040] By installing a bracket to connect the wire feeding sleeve 18 and opening a wire feeding hole 19, the wire feeding sleeve 18 can protect and guide the wire, and the wire feeding hole 19 can standardize the wire feeding path, ensure stable wire feeding, and improve the wire feeding control accuracy.

[0041] The mounting block 25 is connected to the central shaft 3 through the mounting hole 20, and the mounting block 25 is provided with a locking hole 21 for the adjustment rod 12 to pass through. One end of the adjustment rod 12 passes through the locking hole 21, and the other end of the adjustment rod 12 is bent to form a connecting part.

[0042] By connecting the adjusting rod 12 to the locking hole 21, the position of the adjusting rod 12 can be flexibly adjusted according to actual needs, thereby driving the adjusting guide wheel 13 to adjust its position to adapt to the unwinding adjustment requirements of different wires, thereby ensuring that the wire is stably unwound and conveyed under the rotation of the adjusting rod 12 driven by the central shaft 3, and enhancing the adaptability and stability of the unwinding control.

[0043] Specifically, in this embodiment, the end of the mandrel 3 near the base plate 1 is connected to the adjusting rod 12 via the mounting block 25. The adjusting rod 12 can be adjusted radially by telescoping, allowing it to be adjusted according to different wire coil diameters, thereby ensuring the guiding wheel 13 guides the wire during unwinding. By telescoping the adjusting rod 12, the position of the guiding wheel 13 can be changed, thereby adjusting the direction and force of the wire according to different wire coil diameters, thus achieving wire unwinding adjustment.

[0044] The adjusting guide wheel 13 is connected to the connecting part through the connecting bracket. The connecting bracket is connected to the wire threading sleeve 22, and the wire threading sleeve 22 has a through wire threading hole 23.

[0045] The wire sheath 22 can protect and guide the wire that is led out through the adjusting guide wheel 13. The wire hole 23 can further regulate the direction of the wire, prevent the wire from shaking or falling off at the adjusting guide wheel 13, ensure stable wire delivery, and improve the reliability of wire feeding control.

[0046] An adjustment bracket 24 is provided on the base plate 1. The inner side of the adjustment belt 5 makes frictional contact with the anti-rotation wheel 4, and the end of the adjustment belt 5 passes through the anti-rotation wheel 4 and is connected to the adjustment bracket 24.

[0047] The inner side of the adjusting belt 5 is in frictional contact with the anti-rotation wheel 4 and its end is connected to the adjusting bracket 24. By adjusting the frictional resistance between the adjusting belt 5 and the anti-rotation wheel 4, the rotational resistance of the central shaft 3 can be adjusted, thereby adjusting the tension of the wire and providing an effective tension adjustment mechanism for the wire feeding frame. At the same time, under the rotation of the central shaft 3, the adjusting rod 12 is driven to rotate in a circle, thereby causing the adjusting guide wheel 13 to drive the wire to be radially wound. When there is no wire or the wire is broken, the tension on the adjusting guide wheel 13 disappears, and the friction between the anti-rotation wheel 4 and the adjusting belt 5 prevents rotation and automatically brakes and stops the machine, thereby enhancing the accuracy and reliability of wire feeding control.

[0048] In this embodiment, when the wire or filament is subjected to external force, the sliding guide wheel on the slide rail 6 will be pulled upward along the slide rail 6. At the same time, the weight of the counterweight 10 causes the sliding guide wheel to generate a downward gravity, which causes the adjusting guide wheel 13 to generate a pulling force, forcing it to deflect and move in the winding direction. When the wire is continuously pulled, it will generate a rotational motion around the central axis 3, which will automatically release the wire or filament. The central axis 3 is equipped with a rotation-resistant wheel 4. By adjusting the tension of the belt 5, the friction force is changed to form the rotation-resistant force, which adjusts the wire tension. When there is no wire or the wire is broken, the tension of this device disappears, the rotation-resistant force prevents rotation, and the machine automatically brakes and stops.

[0049] The specific operating principle in this embodiment is as follows:

[0050] The wire reels are paired and installed at the bottom of the base plate 1, so that the open end of the wire passes sequentially through the adjusting guide wheel 13, the wire sheath 22, the guide wheel 11, and the sliding roller 9, and is led out through the anti-wire hole of the wire release sheath 18. When the wire is pulled by an external mechanism, it will drive the sliding roller 9 to lift, and the adjusting guide wheel 13 will be driven by the tension, so that the central shaft 3 will rotate in a circle to release the wire. The anti-rotation wheel 4 generates a certain tension control through frictional contact with the adjusting belt 5. When the wire is conveyed, it drives the adjusting rod 12 and the adjusting guide wheel 13 to rotate radially intermittently through the central shaft 3, and the adjustable rod 12 and the adjusting guide wheel 13 are set to rotate radially intermittently. The slide rail 6 reciprocates through a slider 7, which is connected to a sliding roller 9 via a sliding bracket 8. Multiple detachable counterweights 10 are mounted on the sliding bracket 8. The weight of the counterweights 10 applies downward tension to the wire through the sliding roller 9, allowing the wire to maintain a certain tension during the gap release process (specifically when the wire traction force disappears). This provides a buffering effect, effectively absorbing the impact force of the wire, reducing wire shaking and tangling, making the wire transport more stable, and avoiding the problem of wire falling off and loosening due to insufficient tension, thus ensuring the stability and reliability of wire transport.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. An automatic tension pay-off rack, comprising a base plate, a base connected to the base plate, a rotatable central shaft connected to the base, a freewheel connected to the end of the central shaft close to the base plate, and an adjusting belt for adjusting the friction resistance arranged on the base plate, characterized in that: The center shaft is connected with a slide rail extending along the axial direction of the center shaft, and the slide rail is connected with a slider reciprocally movable along the slide rail, the slider is connected with a sliding roller through a sliding support, and the sliding support is oppositely provided with a detachable counterweight, the end of the center shaft away from the bottom plate is connected with a wire guide wheel, and the end of the center shaft close to the bottom plate is connected with an adjusting rod through a mounting block, the adjusting rod is radially telescopically movable, and the end of the adjusting rod is connected with an adjusting guide wheel, when the wire is sequentially wound around the adjusting guide wheel, the wire guide wheel and the sliding roller, the sliding roller can apply a downward tension to the wire through the weight of the counterweight.

2. The automatic tension pay-off stand according to claim 1, characterized in that: The center shaft is mounted on the base through a bearing, and the end of the center shaft is vertically arranged through the bottom plate, and the center shaft is fixedly connected with the drag wheel, so that the center shaft can drive the drag wheel to rotate synchronously.

3. The automatic tension pay-off stand according to claim 1, characterized in that: The sliding support is connected with the slider, one end of the sliding support is bent to form a supporting portion for supporting the counterweight, and the supporting portion is connected with a guide column for penetrating the counterweight, and the other end of the sliding support is bent to form a mounting portion for mounting the sliding roller.

4. The automatic tension pay-off stand according to claim 1, characterized in that: The end of the center shaft away from the bottom plate is connected with a wire releasing sheath through a mounting support, and the wire releasing sheath is provided with a through wire releasing hole.

5. The automatic tension pay-off stand according to claim 1, characterized in that: The mounting block is connected with the center shaft through a mounting hole, and the mounting block is provided with a locking hole for penetrating the adjusting rod, one end of the adjusting rod is penetrated into the locking hole, and the other end of the adjusting rod is bent to form a connecting portion.

6. The automatic tension pay-off stand according to claim 5, characterized in that: The adjusting guide wheel is connected with the connecting portion through a connecting support, and the connecting support is connected with a wire penetrating sheath provided with a through wire penetrating hole.

7. The automatic tension pay-off stand according to any one of claims 1 to 6, characterized in that The bottom plate is provided with an adjusting support, the inner side of the adjusting belt is in frictional contact with the drag wheel, and the end of the adjusting belt is wound around the drag wheel and connected with the adjusting support.

Images