A continuous draw machine pay-off

Abstract

This utility model relates to a wire feeding mechanism for a continuous drawing machine, including a column, an inclined beam, a hanger, and a wire feeder. The column is vertically arranged, one end of the inclined beam is fixedly connected to the top of the column, and the other end is fixedly suspended by the hanger with the wire feeder. The wire feeder includes a base plate, a wheel frame, a wire feeding wheel, and a wire inlet gatherer. The wheel frame is fixed to the upper surface of the base plate and is fixedly connected to the hanger. The wire feeding wheel is horizontally rotatable within the wheel frame. The wire feeding wheel has a double-flare symmetrical structure with a smaller diameter in the middle and larger diameters at both ends. The wheel surface of the wire feeding wheel is a guide arc-shaped curved surface that tapers towards the center, and a groove is formed in the middle of the wheel surface. The wire inlet gatherer is fixed to the lower part of the base plate and is a downwardly extending cylindrical structure. The wire inlet gatherer suppresses erratic swinging and knotting, while the wire feeding wheel further achieves centering and de-spinning, allowing the wire to be fed out straight and stably even during high-speed drawing, enabling higher wire feeding speeds.

Description

Technical Field

[0001] This utility model relates to the field of wire processing technology, specifically to a wire feeding mechanism for a continuous drawing machine. Background Technology

[0002] A continuous drawing machine is a common metal processing equipment, mainly used to continuously draw coiled metal wire through a series of dies, gradually reducing the wire diameter to obtain the required dimensions and mechanical properties. During the operation of the continuous drawing machine, the wire needs to be continuously and stably fed into the drawing dies; otherwise, wire breakage, burrs, or even machine shutdowns can easily occur, affecting production efficiency and finished product quality.

[0003] Since raw wire is mostly supplied in large coils, if it is fed directly into the drawing die without being sorted, the coil will experience problems such as coiling, tangling, and knotting during the unfolding process, making it difficult to ensure a continuous and stable wire supply. Therefore, a dedicated wire release mechanism is usually installed at the front end of the drawing machine to release the coiled wire in an orderly manner and to limit the diameter, guide, and control the tension before it enters the drawing die, so as to ensure that the wire can be fed into the process straight and stably.

[0004] Existing wire feeding mechanisms generally use ordinary grooved wheels or simple guide rings for guiding and limiting the diameter. Although such structures can achieve wire feeding to a certain extent, the wire has a rotational tendency when it is thrown out of the coil, causing the wire to swing frequently on the grooved wheel or even jump out of the groove, resulting in wire tangling. At slightly higher speeds, the swaying, entanglement, and tension fluctuations are more severe, and may even easily cause the wire to break.

[0005] Therefore, it is necessary to study a wire feeding mechanism for a continuous drawing machine. Utility Model Content

[0006] Therefore, the purpose of this utility model is to provide a wire feeding mechanism for a continuous drawing machine, which can effectively solve the problems of tangled and broken wires and low wire feeding speed in existing wire feeding mechanisms.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A wire feeding mechanism for a continuous drawing machine includes a column, a diagonal beam, a hanger, and a wire feeder; The column is set vertically, one end of the inclined beam is fixedly connected to the top of the column, and the other end is fixedly suspended by the hanger with a wire feeder. The wire feeder includes a base plate, a wheel frame, a wire feed wheel, and a wire feed take-up device; The wheel rim is fixed to the upper surface of the base plate, and the wheel rim is fixedly connected to the hanger; The wire feeding reel is horizontally rotatable within the wheel frame; the wire feeding reel has a double-flare symmetrical structure with a small diameter in the middle and large diameters at both ends, and the wheel surface of the wire feeding reel is a guide arc-shaped curved surface that tapers towards the center, with a wheel groove in the middle of the wheel surface; The cable inlet gatherer is fixed to the lower part of the base plate. The cable inlet gatherer is a downward-extending cylindrical structure with a through-hole in the center. The base plate has a clearance opening corresponding to the position of the through-hole.

[0008] Furthermore, it also includes a tangled wire switch, which includes a fixed sleeve, a sliding sleeve, a return spring, and a pressure strain gauge; The fixing sleeve is vertically fixed to the lower surface of the base plate; The sliding sleeve is slidably fitted onto the outer surface of the fixed sleeve. A pressure strain gauge is provided on the upper surface of the sliding sleeve, and the lower surface of the sliding sleeve is fixedly connected to the inlet wire gatherer. The reset spring is sleeved on the fixed sleeve and the sliding sleeve, and is located between the base plate and the inlet cable take-up device.

[0009] Furthermore, a finite diameter ring is fixed to the lower surface of the inlet cable gatherer, and an inlet cable port communicating with the cable passage hole is opened on the finite diameter ring.

[0010] Furthermore, the infeed coil is located in the middle of the base plate, the wheel frame and the pay-off wheel are located on one side of the base plate, and a speed sensor is provided on the other side of the base plate opposite to the wheel frame.

[0011] Furthermore, a conical sleeve is fixedly connected to the outer surface of the incoming line convergent device, and the conical sleeve has a downwardly expanding conical structure.

[0012] Furthermore, anti-detachment rings are fitted at both ends of the wire feeding reel, and the anti-detachment rings are fixed on the wheel frame and maintain a gap with the wire feeding reel.

[0013] The beneficial effects of the above technical solution are: (1) The wire feeding device of this utility model is set as a cylindrical channel structure, which can force the coiled wire to be bundled into a single trajectory, and limit the wire outlet diameter through the wire through hole, so that the wire entering the wire feeding wheel maintains a stable path and tension, reducing the situation of spinning, tangling and tension fluctuation; the wire feeding wheel adopts a double trumpet mouth symmetrical structure with a small diameter in the middle and a large diameter at both ends. Its wheel surface is a guide arc surface that shrinks towards the middle. If the wire has a swirling force or swings during operation due to the coiled wire feeding, it will be automatically guided to the wheel groove position in the middle along the guide arc surface, realizing automatic centering and orientation, thereby effectively eliminating the swing and residual swirling force of the wire, avoiding the defects of the wire easily jumping into the groove and tangling in the existing groove wheel.

[0014] In summary, the wire take-up device suppresses erratic movement and knotting, while the wire release reel further achieves centering and de-spinning, thus avoiding wire breakage caused by sudden tension changes. This allows the wire to be released straight and stably even during high-speed drawing. Simultaneously, because wire sway is controlled, the wire release process is smooth, and the wire release resistance is significantly reduced, enabling it to adapt to higher drawing speeds.

[0015] (2) When the wire feeder of this utility model is working normally, it maintains a stable position and does not affect the smooth passage of the wire. When the wire becomes tangled, knotted or the tension increases abnormally, the wire feeder is forced to move upward. The sliding sleeve compresses the reset spring to form a reset force. When the sliding sleeve moves to the highest position, the pressure strain gauge contacts the fixed sleeve to generate a signal, thereby stopping the machine in time to prevent the wire from breaking or the equipment from being damaged. This significantly improves the safety and reliability of the wire feeding mechanism. Attached Figure Description

[0016] Figure 1 This is a side view of the present invention; Figure 2 This is a 3D schematic diagram of the wire feeder; Figure 3 This is a front view of the wire feeder; Figure 4 This is a cross-sectional view of a tangled wire switch; Figure 5 This is another implementation of the wire feeder.

[0017] Reference numerals in the attached diagram: 1. Column; 2. Inclined beam; 3. Hanger; 4. Base plate; 5. Wheel frame; 6. Wire feeding reel; 7. Wire inlet gatherer; 8. Twisted wire switch; 9. Diameter limiting ring; 10. Speed ​​sensor; 11. Conical sleeve; 12. Anti-detachment ring; 401. Clearance opening; 601. Wheel groove; 701. Wire passage hole; 801. Fixing sleeve; 802. Sliding sleeve; 803. Return spring; 804. Pressure strain gauge; 901. Wire inlet. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1: This example aims to provide a wire feeding mechanism for a continuous drawing machine, which is mainly used to feed the wire before it enters the continuous drawing machine. It addresses the problems of existing wire feeding mechanisms, such as wire tangling and breakage, and low wire feeding speed.

[0019] A type of wire feeding mechanism for a connecting machine, such as Figure 1 It includes a column 1, a diagonal beam 2, a hanger 3, and a wire feeder. The column 1 is set vertically, one end of the diagonal beam 2 is fixedly connected to the top of the column 1, and the other end is fixedly suspended by the hanger 3 to the wire feeder. The column 1, diagonal beam 2, and hanger 3 are mainly used to provide a fixed foundation for the wire feeder, and mainly adopt existing technology, which will not be described in detail here.

[0020] like Figure 2 and Figure 3 The cable feeder includes a base plate 4, a frame 5, a cable feed reel 6, and a cable inlet / retractor 7. The frame 5 is a square frame and is fixed to the upper surface of the base plate 4. The frame 5 is fixedly connected to the hanger 3 to secure the cable feeder to the hanger 3.

[0021] The wire feeding reel 6 is horizontally rotatable within the wheel frame 5 via a rotating shaft. The wire feeding reel 6 has a double-flare symmetrical structure with a small diameter in the middle and large diameters at both ends, making it difficult for the wire to jump out of the groove when the wheel surface swings. The wheel surface of the wire feeding reel 6 is a guide arc-shaped curved surface that tapers towards the center. A groove 601 is opened in the middle of the wheel surface of the wire feeding reel 6. If the wire has a rotational force or swings during operation due to coiling and feeding, it will be automatically guided to the groove 601 in the middle along the guide arc surface, achieving automatic centering and orientation. This effectively eliminates the swing and residual rotational force of the wire, avoiding the defects of wire jumping out of the groove and tangling in existing grooved reels.

[0022] The incoming line retractor 7 is fixed to the lower part of the base plate 4, such as... Figure 4 The wire inlet coil 7 is a downwardly extending cylindrical structure with a through-hole 701 at its center. A clearance opening 401 corresponding to the position of the through-hole 701 is provided on the base plate 4. A limiting ring 9 is fixed to the lower surface of the wire inlet coil 7, and the limiting ring 9 has an inlet 901 communicating with the through-hole 701. The inlet 901 on the limiting ring 9 defines the allowable wire diameter. Different limiting rings 9 can be used to accommodate different wire thicknesses within a certain range. Since the wire swings considerably after being released from the coil, the inlet 901 is prone to wear; therefore, maintenance can be quickly performed by disassembling and replacing the limiting ring 9.

[0023] In this embodiment, the wire released from the coil passes through the inlet coil 7 from bottom to top, and is then guided by the pay-off wheel 6 before being fed into the continuous drawing machine. The inlet coil 7 can force the coiled wire to be bundled into a single trajectory, and the wire outlet diameter is limited by the through-hole 701, so that the wire entering the pay-off wheel 6 maintains a stable path and tension, reducing the situation of coiling, tangling and tension fluctuation.

[0024] Furthermore, it also includes a tangled wire switch 8, such as Figure 4The tangled wire switch 8 includes a fixed sleeve 801, a sliding sleeve 802, a return spring 803, and a pressure strain gauge 804. The fixed sleeve 801 is vertically fixed to the lower surface of the base plate 4. In this embodiment, the fixed sleeve 801 is fixed to the base plate 4 by an ear plate; in other embodiments, it can also be directly welded to the base plate 4. The sliding sleeve 802 is slidably sleeved on the outer surface of the fixed sleeve 801. The pressure strain gauge 804 is provided on the upper surface of the sliding sleeve 802, and the lower surface of the sliding sleeve 802 is fixedly connected to the inlet cable gatherer 7. The return spring 803 is sleeved on the fixed sleeve 801 and the sliding sleeve 802, and is located between the base plate 4 and the inlet cable gatherer 7. The fixed sleeve 801 and the sliding sleeve 802 are hollow cylindrical, corresponding to the positions of the cable passage hole 701 and the cable inlet 901, so that the cable can pass through from the inside.

[0025] The cable feeder 7 maintains a stable position during normal operation, ensuring smooth cable passage. When the cable becomes tangled, knotted, or experiences abnormally increased tension, it cannot pass smoothly through the cable feeder 7. This forces the cable feeder 7 to move upwards, compressing the return spring 803 with the sliding sleeve 802 to create a return force. When the sliding sleeve 802 reaches its highest point, the pressure strain gauge 804 contacts the ear plate of the fixed sleeve 801, generating a signal that promptly stops the machine, preventing cable breakage or equipment damage. This significantly improves the safety and reliability of the cable delivery mechanism. Once the cable is back to a position where it can pass smoothly through the cable feeder 7, the sliding sleeve 802 can be reset by the return spring 803, thus resetting the tangled cable switch 8.

[0026] In this embodiment, the pressure strain gauge 804 can also be a contact switch, pressure sensor, etc., mainly used to generate a signal when the sliding sleeve 802 moves to the highest position. Its specific structure and principle are based on existing technology and will not be described in detail here.

[0027] Furthermore, in order to prevent the wire from jumping off the groove and detaching from the wire feeding wheel 6 when it swings on the feeding wheel 6, anti-detachment rings 12 are fitted at both ends of the feeding wheel 6. The anti-detachment rings 12 are fixed on the wheel frame 5 and maintain a gap with the feeding wheel 6 so that the feeding wheel 6 can rotate. This gap does not allow the wire to pass through.

[0028] Example 2 is basically the same as Example 1, except that a speed sensor 10 and a conical sleeve 11 are provided.

[0029] like Figure 5 The wire take-up device 7 is located in the middle of the base plate 4, the wheel frame 5 and the wire feeding wheel 6 are located on one side of the base plate 4, and a speed sensor 10 is provided on the other side of the base plate 4 opposite to the wheel frame 5. The speed sensor 10 is a non-contact sensor used to detect the speed of the wire.

[0030] A tapered sleeve 11 is fixedly connected to the outer surface of the inlet cable gatherer 7. The tapered sleeve 11 has a downwardly expanding tapered structure, which allows the cable to be initially gathered by the tapered sleeve 11 before entering the inlet cable gatherer 7, thereby reducing the amplitude of the swing.

Claims

1. A wire feeding mechanism for a continuous drawing machine, comprising a column, an inclined beam, a hanger, and a wire feeder; The column is set vertically, one end of the inclined beam is fixedly connected to the top of the column, and the other end is fixedly suspended by the hanger with a wire feeder. Its features are: The wire feeder includes a base plate, a wheel frame, a wire feed wheel, and a wire feed take-up device; The wheel rim is fixed to the upper surface of the base plate, and the wheel rim is fixedly connected to the hanger; The wire feeding reel is horizontally rotatable within the wheel frame; the wire feeding reel has a double-flare symmetrical structure with a small diameter in the middle and a large diameter at both ends, and the wheel surface of the wire feeding reel is a guide arc-shaped curved surface that tapers towards the middle, with a wheel groove in the middle of the wheel surface; The cable inlet gatherer is fixed to the lower part of the base plate. The cable inlet gatherer is a downward-extending cylindrical structure with a through-hole in the center. The base plate has a clearance opening corresponding to the position of the through-hole.

2. The wire feeding mechanism of a continuous drawing machine according to claim 1, characterized in that: It also includes a tangled wire switch, which includes a fixed sleeve, a sliding sleeve, a return spring, and a pressure strain gauge; The fixing sleeve is vertically fixed to the lower surface of the base plate; The sliding sleeve is slidably fitted onto the outer surface of the fixed sleeve. A pressure strain gauge is provided on the upper surface of the sliding sleeve, and the lower surface of the sliding sleeve is fixedly connected to the inlet wire gatherer. The reset spring is sleeved on the fixed sleeve and the sliding sleeve, and is located between the base plate and the inlet cable take-up device.

3. A wire feeding mechanism for a continuous drawing machine according to claim 1 or 2, characterized in that: The lower surface of the inlet cable gatherer is fixed with a finite diameter ring, and the finite diameter ring has an inlet port that communicates with the cable passage hole.

4. The wire feeding mechanism of a continuous drawing machine according to claim 3, characterized in that: The infeed coil is located in the middle of the lower surface of the base plate, the wheel frame and the pay-off wheel are located on one side of the upper surface of the base plate, and a speed sensor is provided on the other side of the upper surface of the base plate opposite to the wheel frame.

5. The wire feeding mechanism of a continuous drawing machine according to claim 3, characterized in that: A conical sleeve is fixedly connected to the outer surface of the incoming line receiver. The conical sleeve has a downwardly expanding conical structure.

6. The wire feeding mechanism of a continuous drawing machine according to claim 3, characterized in that: The two ends of the wire feeding reel are fitted with anti-detachment rings, which are fixed to the wheel frame and maintain a gap with the wire feeding reel.

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