Pay-off rack

Abstract

The utility model provides a pay-off rack which comprises a rack, and a plurality of pay-off shafts are vertically arranged on the left portion of the front side face of the rack. A plurality of transition guide wheels are arranged at the right part of the front side surface of the rack; two wire outlet guide wheels are arranged in the middle of the right end of the front side surface of the rack up and down; an adjusting arm is rotatably arranged on the front side face of the rack, a balance weight sleeve capable of sliding back and forth is arranged on the adjusting arm, a containing groove is formed in the top face of the end, away from the adjusting arm, of the balance weight sleeve, a vertical rod used for fixing a weight is arranged in the containing groove, and an adjusting guide wheel is arranged at the end, close to the transition guide wheel, of the adjusting arm; and the transition guide wheel and the adjusting guide wheel are integrally formed by a plurality of groups of guide wheels which are coaxially arranged and have different diameters. According to the pay-off rack, the guide wheel sets can be freely selected, and the balance weight can be rapidly increased and decreased so as to deal with pay-off of optical cable elements of different sizes, the pay-off tension requirement can be met, the large guide wheel can be used when large tension is needed, the small guide wheel set can be used when small tension is needed, large-range tension adjustment on the same pay-off rack is achieved, and the use requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field related to optical cable production, and particularly relates to a pay-off frame. Background Art

[0002] With the advent of the 5G era, the use of optical cables is increasing, and the requirements for manufacturing precision are becoming increasingly stringent. Optical cables are generally composed of several components or individual units, such as optical fibers, sub-cables, and reinforcement elements. Controlling the payout tension is crucial in optical cable manufacturing, as it directly affects the appearance and performance of the finished cable. Due to different structures and processes, the sub-cables and reinforcement elements used vary significantly, and the payout tension requirements for components of different sizes vary. Different cable components require different payout tensions. Accordingly, when the payout tension is high, a larger guide pulley and increased counterweight are required. When the payout tension is low, a smaller guide pulley and reduced counterweight are required. When producing multi-core optical cables, the large number of cores involved in the payout requires a relatively lengthy and tedious process of replacing the guide pulleys and adding and removing counterweights one by one. Summary of the Invention

[0003] The utility model provides a pay-off frame with a wide range of pay-off tension, which can quickly realize the pay-off operation after replacing the optical cable component.

[0004] The technical solution adopted by this utility model is:

[0005] The cam is provided with a plurality of guide wheels, and the guide wheels are provided with a plurality of guide wheels at the front end and the rear end of the cam, and the guide wheels are provided with a plurality of guide wheels at the front end and the rear end of the cam.

[0006] Preferably, a sleeve is fixed on the frame at a position corresponding to the adjusting arm, a bearing is provided on the rear side of the sleeve, a fixing rod is provided at the rear end of the middle part of the adjusting arm, the fixing rod is passed through the sleeve, and the rear end thereof passes through the bearing and is connected to the rotating shaft of the angular displacement sensor, and the angular displacement sensor is electrically connected to the driving device.

[0007] Preferably, the angular displacement sensor is connected to a frequency converter, and the frequency converter is electrically connected to the driving device.

[0008] Preferably, the driving device is a magnetic powder clutch and a motor, and a bearing seat is provided inside the frame at a position corresponding to the pay-off shaft through a bracket. The rear end of the pay-off shaft passes through the frame and the bearing seat in sequence and is connected to the magnetic powder clutch. A driven wheel is arranged on the pay-off shaft between the magnetic powder clutch and the bearing seat, and a motor is arranged on one side of the bearing seat through an L-shaped frame. A driving wheel is provided on the driving shaft of the motor, and the driving wheel and the driven wheel are connected by a belt.

[0009] Preferably, a scale is provided on the front side of the adjusting arm, and a clearance groove is provided on the opposite side of the counterweight sleeve and the adjusting arm.

[0010] Preferably, limit columns are provided on the frame above and below the adjusting arm, and the limit columns are located at the end away from the adjusting guide wheel, and are respectively used to contact the two sides of the adjusting arm, thereby limiting the amplitude of the up and down swinging of the adjusting guide wheel in the vertical direction.

[0011] Preferably, a fixing sleeve is provided at the middle part of the right end of the front side of the frame through a horizontal plate, a fixed shaft is connected to the internal thread of the fixing sleeve, the outlet guide wheel is rotatably provided on the fixed shaft, a pear-shaped disk is provided on the fixed shaft, and a toggle rod is provided on the side of the pear-shaped disk away from the fixed shaft.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the pay-off stand can freely select the guide wheel group and quickly increase or decrease the counterweight to cope with the pay-off of optical cable components of different sizes and meet their pay-off tension requirements. When high tension is required, a large guide wheel can be used, and when low tension is required, a small guide wheel group can be used, thereby achieving a wide range of tension adjustment on the same pay-off stand to meet usage requirements; in addition, the front and rear positions of the outlet guide wheel can be quickly adjusted to facilitate alignment with the optical cable component led out of the adjustment guide wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the main view of the utility model.

[0014] Figure 2 Schematic diagram of the structure of the drive device.

[0015] Figure 3 Schematic diagram of the structure of the regulating arm.

[0016] Figure 4 This is a schematic diagram of the layout of the outgoing wire guide wheel.

[0017] In the figure: 1. Frame; 2. Pay-off shaft; 3. Transition guide wheel; 4. Outgoing guide wheel; 5. Adjusting arm; 6. Counterweight sleeve; 7. Locking bolt; 8. Adjusting guide wheel; 9. Sleeve; 10. Fixing rod; 11. Angular displacement sensor; 12. Magnetic powder clutch; 13. Motor; 14. Bearing seat; 15. Driven wheel; 16. Driving wheel; 17. Belt; 18. Scale; 19. Clearance slot; 21. Limiting column; 22. Fixing sleeve; 23. Fixed shaft; 24. Pear-shaped disk; 25. Toggle rod; 61. Receiving slot; 62. Vertical pole; 81. Wire groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The utility model provides a pay-off stand, comprising a frame 1, wherein a plurality of pay-off shafts 2 for fixing the pay-off wheel are vertically arranged on the left side of the front side of the frame 1, and a driving device for driving the pay-off shaft to work is provided inside the frame 1, and the driving device controls the pay-off shaft to rotate at a set speed according to the tension of the wire harness; a plurality of transition guide wheels 3 are provided on the right side of the front side of the frame 1, and the transition guide wheel 3 is arranged higher than the pay-off shaft 2, and two outlet guide wheels 4 are arranged on the upper and lower middle parts of the right end of the front side of the frame 1; an adjusting arm 5 is rotatably provided on the front side of the frame between the pay-off shaft 2 and the transition guide wheel 3, and a counterweight sleeve 6 that can slide back and forth is provided on the adjusting arm 5, and a counterweight sleeve 6 is provided There is a locking bolt 7 for locking the counterweight sleeve to the adjusting arm. A receiving groove 61 is provided on the top surface of the end of the counterweight sleeve 6 away from the adjusting arm. A vertical rod 62 for fixing the weight is provided in the receiving groove 61. When in use, the annular weight is inserted into the vertical rod to achieve fixation. An adjusting guide wheel 8 is provided at the end of the adjusting arm 5 close to the transition guide wheel 3; the transition guide wheel 3 and the adjusting guide wheel 8 are both composed of a plurality of groups of guide wheels of different diameters arranged coaxially, and the diameter of the guide wheel gradually decreases from the inside to the outside. A plurality of wire grooves 81 are provided on the guide wheel, and there are at least two wire grooves. The wire grooves on each guide wheel can be the same or different, and should be adapted to the size of commonly used optical cable components.

[0020] During use, the pay-off reel with the optical cable elements is placed on the pay-off shaft and fixed. After the optical cable elements are led out, they pass through the transition guide wheel, the adjustment guide wheel, the transition guide wheel, the adjustment guide wheel, the transition guide wheel, and the outlet guide wheel in sequence. That is, they are wrapped around the transition guide wheel and the adjustment guide wheel twice before being led out through the outlet guide wheel. Wrapping them multiple times can make the optical cable elements more stable in routing.

[0021] If the guide wheels remain unchanged, when tension increases, the cable element encounters greater resistance as it passes through the transition and adjustment guide wheels due to the larger bend angles, risking breakage at faster speeds. However, when tension increases, the use of larger guide wheels allows the cable element to bend at smaller angles as it passes through the transition and adjustment guide wheels, improving travel smoothness. Therefore, in this embodiment, the transition and adjustment guide wheels are constructed from multiple coaxially arranged sets of guide wheels of varying diameters. This eliminates the need for individual guide wheel replacement; instead, the guide wheel with the appropriate diameter is selected.

[0022] The weights are movably placed in the accommodating slots of the counterweight sleeve, making them easy to remove and install. This allows for quick and convenient weight addition and subtraction, eliminating the need to disassemble the adjustment arm. Furthermore, tension can be adjusted during production without disconnecting the cable components, re-measuring the tension, and then adding or subtracting weights.

[0023] When using this pay-off stand, you can freely choose the appropriate guide wheel and quickly increase or decrease the counterweight to cope with the pay-off of optical cable components of different sizes and meet their pay-off tension requirements. When high tension is required, a large guide wheel can be used, and when low tension is required, a small guide wheel can be used. This allows a wide range of tension adjustment on the same pay-off stand to meet usage requirements.

[0024] The adjustment arm is mounted on the front side of the frame. A sleeve 9 is fixed to the frame 1 at a position corresponding to the adjustment arm 5. A bearing is located inside the rear end of the sleeve 9. A fixing rod 10 is located at the rear end of the adjustment arm 5. The fixing rod 10 is inserted into the sleeve 9 and connected to the rotating shaft of an angular displacement sensor 11 via a bearing. The angular displacement sensor 11 is electrically connected to a drive unit. As the adjustment arm swings circumferentially around the angular displacement sensor, the position of the adjustment guide wheel changes. The angular displacement sensor generates a voltage signal based on the position of the adjustment arm and transmits this signal to the drive unit, which then drives the payout shaft to rotate at a set speed based on the voltage signal. During operation, the angular displacement sensor generates a voltage signal in real time based on the position of the adjustment arm. If the payout shaft rotates at a constant speed, the adjustment guide wheel will be lifted or lowered if the rear end wire speed does not match the payout shaft speed. This causes the adjustment arm to change its position. This voltage signal then changes the drive unit, which in turn changes the payout shaft speed to match the rear end wire speed, maintaining a substantially balanced state with minimal fluctuation.

[0025] Furthermore, the angular displacement sensor 11 is connected to a frequency converter, which is electrically connected to the drive device, thereby increasing the drive device's response speed. The angular displacement sensor generates a voltage signal based on the position of the adjustment arm and transmits the voltage signal to the frequency converter. The frequency converter determines the speed of the payoff shaft based on the voltage signal, and the drive device drives the payoff shaft to rotate at the specified speed.

[0026] The drive device comprises a magnetic powder clutch 12 and a motor 13. A bearing seat 14 is provided inside the frame 1 at a position corresponding to the payoff shaft 2 via a bracket. The rear end of the payoff shaft 2 passes through the frame 1 and the bearing seat 14, connecting to the magnetic powder clutch 12. A driven pulley 15 is provided on the payoff shaft 2 between the magnetic powder clutch and the bearing seat. A motor 13 is provided on one side of the bearing seat 14 via an L-shaped bracket. A drive pulley 16 is provided on the motor's drive shaft, and a belt 17 connects the drive pulley 16 and the driven pulley 15. The magnetic powder clutch and motor are each connected to the same controller, and an inverter is connected to the controller to achieve signal transmission and drive device control. Compared to conventional payoff frames, the addition of a magnetic powder clutch, synchronized with the motor, allows for more stable control of the payoff tension via the rotating shaft, eliminating tension jitter and other issues, and is more precise than single-motor control.

[0027] In this embodiment, a counterweight sleeve is mounted on an adjustment arm. The adjustment arm is a rectangular plate. The rear side of the counterweight sleeve is provided with a convex through-slot extending through its left and right side arms. The counterweight block is secured to the adjustment arm by the convex through-slot and can slide back and forth. The top and bottom of the counterweight sleeve are provided with threaded through-holes that communicate with the convex through-slots. Locking bolts are inserted into the threaded through-holes and can be rotated to tighten against the top and bottom of the adjustment arm to secure the counterweight sleeve. When released, the counterweight sleeve can slide. The sliding of the counterweight sleeve on the adjustment arm controls the weight at the end where the guide wheel is located, thereby adjusting the pulling force on the optical cable element and adjusting the tension of the optical cable element. The locking bolts secure the counterweight sleeve to ensure that the tension of the optical cable element remains constant during normal payout, ensuring normal payout operation.

[0028] Furthermore, a scale 18 is provided on the front side of the adjusting arm 5, and a clearance groove 19 is provided on the opposite side of the counterweight sleeve and the adjusting arm, and the clearance groove 19 is connected to the convex groove. By using the scale, the position of the counterweight sleeve can be quickly determined.

[0029] Furthermore, limit posts 20 are provided on the frame 1 above and below the adjustment arm 5. These limit posts 20 are located at the end away from the adjustment guide wheel and are configured to contact both sides of the adjustment arm, thereby limiting the vertical swing amplitude of the adjustment guide wheel. The limit posts are covered with cushioning sleeves made of a soft material such as silicone, rubber, or foam.

[0030] Furthermore, a fixing sleeve 21 is provided in the middle of the right end of the front side of the frame 1 through a horizontal plate. The fixing sleeve 21 is internally threaded with a fixing shaft 22. The outlet guide wheel 4 is rotatably provided on the fixing shaft 22. A pear-shaped disk 23 is provided on the fixing shaft 22. A toggle lever 24 is provided on the side of the pear-shaped disk 23 away from the fixing shaft. The toggle lever drives the fixing shaft to rotate through the pear-shaped disk, and the front and rear positions of the outlet guide wheel can be quickly adjusted to correspond to guide wheels of different diameters on the adjustment guide wheel, thereby facilitating the outlet of the wire.

Claims

1. A pay-off stand, characterized in that: The cam is provided with a plurality of guide wheels, and the guide wheels are arranged on the right side of the front side of the frame, and the guide wheels are arranged on the upper and lower sides of the frame, and the guide wheels are provided with a plurality of guide wheels of different diameters arranged coaxially.

2. The pay-off stand according to claim 1, wherein: A sleeve is fixed on the frame at a position corresponding to the adjustment arm, a bearing is provided on the rear side of the sleeve, a fixing rod is provided at the rear end of the middle part of the adjustment arm, the fixing rod is passed through the sleeve, and the rear end thereof passes through the bearing and is connected to the rotating shaft of the angular displacement sensor, and the angular displacement sensor is electrically connected to the driving device.

3. The pay-off frame according to claim 1, characterized in that: The angular displacement sensor is connected to a frequency converter, and the frequency converter is electrically connected to the driving device.

4. The pay-off stand according to claim 1, wherein: The driving device comprises a magnetic powder clutch and a motor. A bearing seat is provided inside the frame at a position corresponding to the pay-off shaft through a bracket. The rear end of the pay-off shaft passes through the frame and the bearing seat in sequence and is connected to the magnetic powder clutch. A driven wheel is arranged on the pay-off shaft between the magnetic powder clutch and the bearing seat. A motor is arranged on one side of the bearing seat through an L-shaped frame. A driving wheel is provided on the driving shaft of the motor. The driving wheel and the driven wheel are connected by a belt.

5. The pay-off stand according to claim 1, wherein: A scale is provided on the front side of the adjusting arm, and a clearance groove is provided on the opposite side of the counterweight sleeve and the adjusting arm.

6. The pay-off stand according to claim 1, wherein: Limiting columns are provided on the frame above and below the adjusting arm. The limiting columns are located at the end away from the adjusting guide wheel and are used to contact the two sides of the adjusting arm respectively, thereby limiting the amplitude of the vertical swing of the adjusting guide wheel.

7. The pay-off stand according to claim 1, wherein: A fixing sleeve is provided at the middle part of the right end of the front side of the frame through a horizontal plate, and a fixed shaft is connected to the internal thread of the fixing sleeve. The outlet guide wheel is rotatably provided on the fixed shaft, and a pear-shaped disk is provided on the fixed shaft. A toggle rod is provided on the side of the pear-shaped disk away from the fixed shaft.

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