A core wire floating stranded wire overcharge protection wire storage device

Abstract

This utility model discloses a wire storage device for over-release protection of floating stranded wire, including a base, a floating arm hinged to the base, a guide wheel assembly installed at the free end of the floating arm, and a constant force mechanism acting on the floating arm. The guide wheel assembly is arranged on the wire path between the wire feeding wheel and the tensioner of the stranding machine. The floating arm can swing around the hinge axis according to the change of wire tension, and the temporary storage and release of wire is realized by the rise and fall of the swing path. This utility model solves the problem of wire slack accumulation and delamination caused by inertial over-release in passive wire feeding by using a floating arm-type wire storage mechanism and a double guide wheel spatial limiting structure, and realizes the self-adjustment and stabilization of stranded wire tension.

Description

Technical Field

[0001] This utility model belongs to the technical field of wire stranding equipment, and in particular relates to a wire storage device for over-discharge protection of floating stranded core wire. Background Technology

[0002] In passive wire feeding of a stranding machine, the feed wheel passively rotates to release the wire, relying on the traction force of the stranded wire. When the equipment stops abruptly or decelerates, the feed wheel continues to rotate due to inertia, resulting in excessive wire feeding. The wire accumulates and loosens in front of the tensioner, causing tangling, breakage, and surface damage. Traditional single-guide wheel structures lack effective spatial constraints, and the high-speed vibration of the wire easily leads to it slipping out of the groove, exacerbating tension fluctuations. While some existing technologies use damping devices to suppress the inertia of the feed wheel, the mechanical response lag cannot fundamentally solve the problem of wire loosening. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a core wire floating stranded wire over-discharge protection storage device. Through the floating arm type storage mechanism and the double guide wheel space limiting structure, it solves the problem of wire slack accumulation and delamination caused by inertial over-discharge in passive wire release, and realizes the self-adjustment and stability of stranded wire tension.

[0004] Technical solution: To achieve the above objectives, this utility model provides a core-wire floating stranded wire over-discharge protection and storage device, comprising a base, a floating arm hinged to the base, a guide wheel assembly installed at the free end of the floating arm, and a constant force mechanism acting on the floating arm; the guide wheel assembly is arranged on the wire path between the wire feeding wheel and the tensioner of the stranding machine, and the floating arm can swing around the hinge axis according to the change of wire tension, thereby realizing the temporary storage and release of the wire through the lifting and lowering of the swing path.

[0005] Furthermore, the hinge shaft divides the floating arm into a long lever arm segment and a short lever arm segment; the guide wheel assembly is installed at the front end of the long lever arm segment; the constant force mechanism is a counterweight block suspended at the end of the short lever arm segment by a suspension rod, with its gravity direction vertically downward, driving the floating arm to generate an upward swing restoring torque.

[0006] Furthermore, the guide wheel assembly includes an upper guide wheel and a lower guide wheel arranged with parallel axes and vertically offset, both of which are grooved wheels; the wire drawn from the pay-off wheel first winds around the right half of the upper guide wheel from top to bottom, and then winds around the left half of the lower guide wheel from bottom to top, forming an S-shaped curved path.

[0007] Furthermore, the guide wheel assembly also includes a guide wheel side plate, the guide wheel assembly is mounted on the floating arm via the guide wheel side plate, and the guide wheel side plate constitutes a side guard plate to prevent the wire from slipping off the wheel.

[0008] Furthermore, it includes a wire feeding frame corresponding to the wire feeding reel, wherein the wire feeding reel is rotatably mounted on the wire feeding shaft of the wire feeding frame and is passively rotated to feed wire by the wire pulling force of the stranding machine.

[0009] Furthermore, an angle sensor is installed on the hinge shaft of the floating arm, which detects the swing angle position of the floating arm in real time and outputs it to the control system.

[0010] Furthermore, a brake is provided on the wire-feeding shaft of the wire-feeding reel, and the control system is connected to the brake for signal transmission.

[0011] Furthermore, the base is provided with hydraulic buffer columns symmetrically arranged at both ends of the swing trajectory of the floating arm.

[0012] Furthermore, it includes a tension frame corresponding to the tensioner, the tensioner being mounted on the tension frame and corresponding one-to-one with the wire feeding reel; the stranding machine uses its rotating cage to strand multiple wires whose tension has been adjusted by the tensioner.

[0013] Beneficial effects: This utility model uses the lever-type path adjustment mechanism of the floating arm to drive the guide wheel group to swing down during emergency stops or deceleration, dynamically extending the wire path to absorb excess released wire and completely eliminating the slack accumulation in front of the tensioner; during acceleration and start-up, the traction force pulls the floating arm to swing up to shorten the path, timely replenishing the wire supply and achieving self-balancing of the stranded wire tension. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figure 1 As shown, a core-wire floating stranded wire over-release protection and storage device includes a base 1, a floating arm 2 hinged to the base 1, a guide wheel assembly 3 installed at the free end of the floating arm 2, and a constant force mechanism 4 acting on the floating arm 2. The guide wheel assembly 3 is disposed on the wire path between the wire feeding wheel 5 and the tensioner 6 of the stranding machine 8. The floating arm 2 can swing around the hinge axis 7 according to the change of wire tension, and the temporary storage and release of wire is realized by the raising and lowering of the swing path. This utility model solves the problem of wire slack accumulation and delamination caused by inertial over-release in passive wire feeding by using a floating arm-type wire storage mechanism and a double guide wheel spatial limiting structure, and realizes the self-adjustment and stabilization of stranded wire tension.

[0017] This utility model includes a wire feeding frame 5a corresponding to the wire feeding reel 5. The wire feeding reel 5 is rotatably mounted on the wire feeding shaft of the wire feeding frame 5a and is passively rotated to feed wire by the wire pulling force of the stranding machine 8. It also includes a tension frame 6a corresponding to the tensioner 6. The tensioner 6 is mounted on the tension frame 6a and corresponds one-to-one with the wire feeding reel 5. The stranding machine 8 uses its rotating coil to strand multiple wires whose tension has been adjusted by the tensioner 6.

[0018] The hinge shaft 7 divides the floating arm 2 into a long lever arm segment 2a and a short lever arm segment 2b; the guide wheel assembly 3 is installed at the front end of the long lever arm segment 2a; the constant force mechanism 4 is a counterweight block 42 suspended from the end of the short lever arm segment 2b by a suspension rod 41, with its gravity direction vertically downward, driving the floating arm 2 to generate an upward swing restoring torque. Utilizing the leverage amplification effect, the long lever arm segment 2a amplifies the displacement stroke, while the short lever arm segment 2b reduces the counterweight volume, achieving a small counterweight to balance large tension. The gravity of the counterweight block 42 is always vertically downward, ensuring that the floating arm 2 has a stable upward restoring force at any position, preventing the mechanism from losing control in the event of a sudden wire breakage. When the wire tension disappears, the counterweight block 42 drives the floating arm to automatically reset to its highest position, preventing the guide wheel assembly 3 from colliding with the equipment.

[0019] The principle of the swing arm 2 of this utility model is roughly as follows:

[0020] When the speed at which the wire is released by the wire-laying reel 5 exceeds the traction requirement, such as in emergency stop or deceleration situations, the process is as follows:

[0021] 1.1) A sudden drop in speed at the traction end causes instantaneous redundancy in the wire;

[0022] 1.2) The redundant wires fall due to gravity, which in turn causes the guide wheel assembly 3 to move downwards;

[0023] 1.3) The floating arm 2 swings downward under the pressure of the guide wheel group 3, which causes the wire path from the wire feeding wheel 5 to the guide wheel group 3 to change from a straight line to a broken line, that is, the length of the wire path increases to accommodate excessive wire.

[0024] When the traction demand exceeds the release speed of the wire-feeding reel 5, such as in an acceleration start-up condition, the process is as follows:

[0025] 2.1) Acceleration at the traction end causes a sudden increase in wire tension;

[0026] 2.2) The straightening of the wire pulls the guide wheel assembly 3, thereby causing the floating arm 2 to swing upward against the gravity of the counterweight 42;

[0027] 2.3) The wire path changes from a zigzag to a straight line, thereby reducing the length of the wire path from the wire feeding wheel 5 to the guide wheel group 3, which means shortening the wire path length to supplement the supply.

[0028] Therefore, this utility model uses the lever-type path adjustment mechanism of the floating arm to drive the guide wheel assembly to swing down during emergency stops or deceleration, dynamically extending the wire path to absorb excess released wire and completely eliminating the slack buildup in front of the tensioner; during acceleration and start-up, the traction force pulls the floating arm to swing up to shorten the path, timely replenishing the wire supply and achieving self-balancing of the stranded wire tension.

[0029] The guide wheel assembly 3 includes an upper guide wheel 31 and a lower guide wheel 32 arranged with parallel axes and vertically offset. Both the upper guide wheel 31 and the lower guide wheel 32 are grooved wheels. The wire drawn from the wire feeding wheel 5 first winds around the right half of the upper guide wheel 31 from top to bottom, and then winds around the left half of the lower guide wheel 32 from bottom to top, forming an S-shaped bending path. This physically limits the wire and prevents it from jumping out of the groove. At the same time, the S-shaped bending path can disperse the bending stress of the wire and prevent it from breaking. The continuous contact between the wire and the two grooved wheels increases the frictional damping and suppresses vibration during rapid wire feeding.

[0030] More specifically, the guide wheel assembly 3 also includes a guide wheel side plate 33. The guide wheel assembly 3 is mounted on the floating arm 2 via the guide wheel side plate 33, and the guide wheel side plate 33 constitutes a side guard plate to prevent the wire from falling off the wheel, thus avoiding the risk of the wire being stuck in the groove.

[0031] An angle sensor 5 is mounted on the hinge shaft 7 of the floating arm 2. This angle sensor 5 detects the swing angle position of the floating arm 2 in real time and outputs the result to the control system. A brake 9 is installed on the wire feeding shaft of the wire feeding reel 5, and the control system is connected to the brake 9 for signal transmission. The angle sensor 5 monitors the swing amplitude of the floating arm 2 in real time, corresponding to the wire storage margin. When the margin is exceeded, the control system controls the brake 9 to increase the damping of the wire feeding reel 5, thereby suppressing over-feeding.

[0032] The base 1 is provided with hydraulic buffer columns 10 symmetrically arranged at both ends of the swing trajectory of the floating arm 2. The hydraulic buffer columns 10 absorb the impact kinetic energy of the floating arm 2 at its extreme position and prevent inertial impact from damaging the equipment.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A wire storage device for over-discharge protection of floating stranded wire, characterized in that: It includes a base (1), a floating arm (2) hinged to the base (1), a guide wheel assembly (3) installed at the free end of the floating arm (2), and a constant force mechanism (4) acting on the floating arm (2); the guide wheel assembly (3) is set on the wire path between the wire feeding wheel (5) and the tensioner (6) of the stranding machine (8), and the floating arm (2) can swing around the hinge axis (7) with the change of wire tension, and the temporary storage and release of wire can be realized by the lifting and lowering of the swing path.

2. The over-discharge protection storage device for floating stranded wire according to claim 1, characterized in that: The hinge shaft (7) divides the floating arm (2) into a long lever arm segment (2a) and a short lever arm segment (2b); the guide wheel assembly (3) is installed at the front end of the long lever arm segment (2a); the constant force mechanism (4) is a counterweight (42) suspended at the end of the short lever arm segment (2b) by a suspension rod (41), whose gravity direction is vertically downward, driving the floating arm (2) to generate an upward swing restoring torque.

3. A core-wire floating stranded wire over-discharge protection storage device according to claim 1 or 2, characterized in that: The guide wheel assembly (3) includes an upper guide wheel (31) and a lower guide wheel (32) arranged with parallel axes and vertically staggered. Both the upper guide wheel (31) and the lower guide wheel (32) are grooved wheels. The wire drawn from the wire feeding wheel (5) first winds around the right half of the upper guide wheel (31) from top to bottom, and then winds around the left half of the lower guide wheel (32) from bottom to top, forming an S-shaped curved path.

4. The over-discharge protection storage device for floating stranded wire according to claim 3, characterized in that: The guide wheel assembly (3) also includes a guide wheel side plate (33). The guide wheel assembly (3) is mounted on the floating arm (2) via the guide wheel side plate (33), and the guide wheel side plate (33) constitutes a side guard plate to prevent the wire from falling off the wheel.

5. The over-discharge protection storage device for floating stranded wire according to claim 1, characterized in that: It includes a wire feeding frame (5a) corresponding to the wire feeding wheel (5), the wire feeding wheel (5) is rotatably mounted on the wire feeding shaft of the wire feeding frame (5a), and is passively rotated to feed wire by the wire pulling force of the stranding machine (8).

6. The over-discharge protection storage device for floating stranded wire according to claim 5, characterized in that: An angle sensor (11) is installed on the hinge shaft (7) of the floating arm (2). The angle sensor (11) detects the swing angle position of the floating arm (2) in real time and outputs it to the control system.

7. A core-wire floating stranded wire over-discharge protection storage device according to claim 6, characterized in that: A brake (9) is provided on the wire feeding shaft of the wire feeding reel (5), and the control system is connected to the brake (9) for signal transmission.

8. The over-discharge protection storage device for floating stranded wire according to claim 7, characterized in that: The base (1) is provided with hydraulic buffer columns (10) symmetrically arranged at both ends of the swing trajectory of the floating arm (2).

9. A core-wire floating stranded wire over-discharge protection storage device according to claim 1, characterized in that: Includes a tension frame (6a) corresponding to the tensioner (6), the tensioner (6) is installed on the tension frame (6a) and corresponds one-to-one with the wire feeding wheel (5); the stranding machine (8) uses its rotating cage to strand multiple wires whose tension has been adjusted by the tensioner (6).

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