A wire drawing device

Abstract

The application discloses a powder drawing wire processing device, which comprises a wire spring polishing mechanism; the wire spring polishing mechanism comprises annular feeding end seats which are arranged at intervals on two sides, and a plurality of polishing springs are fixedly connected between the annular feeding end seats; in a polishing process, the wire is contained in spring cavities in the polishing springs; a plurality of feeding structures which are communicated with the spring cavities are formed in the annular feeding end seats; the annular feeding end seat is assembled and connected with an eccentric mechanism, and the eccentric mechanism drives the wire spring polishing mechanism to eccentrically move in the polishing process; the powder drawing wire processing device further comprises a plurality of constraint movement mechanisms which are fixedly connected between the polishing springs, and the polishing springs which eccentrically move are limited to rotate through the constraint movement mechanisms in the polishing process. The device components are designed to efficiently polish the slender and soft wire, and the method can effectively avoid defects such as wire bending, deformation and breakage caused by polishing.

Description

Technical Field

[0001] This invention belongs to the field of wire processing technology, and particularly relates to a powder-drawn wire processing device. Background Technology

[0002] Wire is a straight material, such as steel bars and steel wires. During the processing of wire, it is often necessary to stretch the material. Specifically, stretched materials are mainly processed by cold drawing and thermoforming. Among these methods, thermoforming results in lower precision, which manifests as larger dimensional fluctuations and lower accuracy after thermoforming. Therefore, cold drawing is currently the more common processing method.

[0003] Specifically, for metallic materials, cold drawing achieves a certain shape and mechanical properties, while the material is drawn at room temperature during the cold drawing process. Compared to thermoformed products, cold-drawn products have the advantages of higher dimensional accuracy and better surface finish.

[0004] In cold drawing, the drawing medium can be categorized into several types, such as oil drawing and powder drawing. After powder drawing, a thin film formed by the liquefaction of drawing powder remains on the surface of the wire. The traditional method for removing this film is to wash it with hot water and then dry it. When the cold drawing speed is too fast and drying is not timely, residual water often adheres to the surface of the steel, leading to rusting of the wire.

[0005] Therefore, after cold drawing, the material needs to be polished. Currently, the polishing method used is exemplified by a wire polishing device disclosed in Chinese Patent Publication No. CN115958504A. Specifically, this device includes a frame, a straightening mechanism, a brushing mechanism, and a motor. The brushing mechanism contains a brushing assembly, which includes a first brushing unit and a second brushing unit. Both the first and second brushing units include a connecting arm, a counterweight, and a first brush head. The connecting arms of the first and second brushing units are pivotally connected to a first connecting rod and a second connecting rod, respectively. The first brush head is connected to the connecting arm. The first and second brushing units are diagonally opposite each other, such that the brush grooves of the first brush head on the first brushing unit and the brush grooves of the first brush head on the second brushing unit are oriented opposite each other, and the brush grooves correspond to the positions through which the wire passes.

[0006] The above technical solution significantly improves the overheating problem during wire grinding, and the wire has uniform contact, large grinding force, and symmetrically distributed radial forces that cancel each other out, which can remove deep rust spots and pits.

[0007] However, during the polishing process, especially with thinner and more flexible wires, brushing can easily deform the wire. This is mainly because thin wires have weak resistance to bending and deformation, making it difficult to control the pressure during brushing. Excessive pressure can cause the material to bend, while insufficient pressure will not adequately remove the rust from the wire surface.

[0008] Secondly, because the material is long and thin, it is easy to bend downwards during processing, making it difficult to keep the material in a straight line, which makes processing more troublesome.

[0009] Thirdly, slender materials are prone to breakage during processing, resulting in a large amount of wire breakage, bending, and deformation after grinding and rust removal. Clearly, current wire grinding equipment is only suitable for materials with high thickness and physical strength, and is ineffective for slender, flexible wire materials. Summary of the Invention

[0010] Based on the above background, the purpose of this invention is to provide a powder-drawn wire processing device.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A powder-drawn wire processing device includes a wire spring grinding mechanism;

[0013] The wire spring grinding mechanism includes annular feeding end seats spaced apart on both sides, and a plurality of grinding springs are fixedly connected between the annular feeding end seats.

[0014] During the polishing process, the wire is contained within the spring cavity of the polishing spring;

[0015] The annular feeding end seat has a feeding structure with several interconnected spring cavities;

[0016] The annular feeding end seat is equipped with an eccentric mechanism. During the grinding process, the eccentric mechanism drives the wire spring grinding mechanism to move eccentrically.

[0017] The powder-drawn wire processing device also includes several binding motion mechanisms fixedly connected between the grinding springs. During the grinding process, the eccentrically moving grinding springs are limited to rotate by the binding motion mechanisms.

[0018] Preferably, the feeding structure includes a plurality of feeding holes formed on the annular feeding end seat, and the feeding holes are connected to the spring cavity;

[0019] A sealing post is threaded onto the feeding hole.

[0020] Preferably, an inner fixing connecting plate is fixedly connected to the center of the annular feeding end seat;

[0021] The eccentric mechanism is hinged to the inner fixed connecting plate.

[0022] Preferably, the eccentric mechanism includes an eccentric wheel, and a crank is hinged to the eccentric part of the eccentric wheel. The crank is hinged to the center of the inner fixed connecting plate.

[0023] The eccentric mechanism also includes a forward and reverse motor mounted on an eccentric wheel on one side.

[0024] Preferably, the powder-drawn wire processing device further includes a frame;

[0025] The eccentric wheel is rotatably connected to the frame.

[0026] Preferably, the restraint mechanism includes a fixing frame assembly fixedly connected between the grinding springs;

[0027] The fixed frame assembly is connected to an outer annular limiting frame via several swing springs.

[0028] Preferably, the fixing frame assembly includes an outer annular seat and an inner annular seat located concentrically;

[0029] The outer annular seat is fixedly connected to the outside of the grinding spring, and the inner annular seat is fixedly connected to the inside of the grinding spring.

[0030] The outer annular seat and the inner annular seat are fixedly connected by a number of internal connecting columns.

[0031] Preferably, the two ends of the swing spring are fixedly connected to the outer side wall of the outer annular seat and the inner side wall of the outer annular limiting frame, respectively;

[0032] The swing springs are distributed in a ring.

[0033] Preferably, the bottom of the outer annular limiting frame is fixedly assembled to the frame by an mounting component.

[0034] Preferably, the mounting component includes a mounting plate fixedly connected to the bottom of the outer annular limiting frame, and the mounting plate is fixedly assembled on the frame by a plurality of connecting screws;

[0035] The top of the mounting plate is welded with several welding columns, which are welded to the bottom of the outer annular limiting frame.

[0036] The present invention has the following beneficial effects:

[0037] 1. During the grinding process, especially when dealing with thin and soft wires, the wire is horizontally supported in the spring cavity, and the speed of the eccentric movement is constantly changing. Therefore, the wire continuously slides between the grinding spring and the spring cavity, thus performing grinding.

[0038] 2. During the movement of the spring, due to the elastic effect, in addition to the eccentric motion, there is also the oscillation of the spring itself. Therefore, there is relative motion between the spring and the non-elastic wire, which is reflected in the friction between the wire and the spring. The friction leads to the removal of rust on the surface of the wire.

[0039] 3. By using a grinding spring to hold and grind the wire, the rust on the wire surface can be thoroughly removed without bending or deforming the wire. This method is highly effective, as the wire surface is quickly rubbed and removed by the grinding spring during the relative movement of the wire.

[0040] 4. By using a restraint mechanism, the stability of the movement during the grinding process is improved. Specifically, this involves an outer annular seat and an inner annular seat that are fixedly connected between the grinding springs. The outer annular seat is fixedly connected to the outside of the grinding springs, and the inner annular seat is fixedly connected to the inside of the grinding springs. The outer annular seat and the inner annular seat are fixedly connected by several inner connecting columns.

[0041] This method achieves both external and internal fixation of the grinding springs, reducing the risk of outward deformation and bending between the springs during rotation due to speed discrepancies. After reinforcement, the relative movement between the grinding springs is minimized during rotation, maintaining a stable eccentric clockwise and counterclockwise motion. This reinforcement significantly reduces the risk of wire deformation due to bending deformation of the grinding springs, while also greatly improving the stability of the grinding motion.

[0042] 5. The swing spring is fixed between the outer side wall of the outer ring seat and the inner side wall of the outer ring limit frame; during the movement, because the swing spring has the ability to deform in any direction (the swing spring restricts the movement), the swing springs in different parts are stretched and shortened to match the eccentric movement trajectory during the eccentric movement.

[0043] The above method enables efficient polishing of thin and soft wires, and can effectively avoid defects such as bending, deformation, and breakage caused by polishing. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention;

[0046] Figure 2 This is a schematic diagram of the eccentric mechanism in an embodiment of the present invention;

[0047] Figure 3 This is a schematic diagram of the dispersed structure of the eccentric mechanism in an embodiment of the present invention;

[0048] Figure 4 This is a schematic diagram of the structure for accommodating the grinding spring and grinding wire in an embodiment of the present invention;

[0049] Figure 5 This is a schematic diagram of the restraint motion mechanism in an embodiment of the present invention;

[0050] Figure 6 This is a schematic diagram of the outer annular seat and the inner annular seat in an embodiment of the present invention;

[0051] Figure 7 This is a schematic diagram of the planar structure of the restraint motion mechanism in an embodiment of the present invention;

[0052] Figure 8 This is a schematic diagram of the structure of the grinding spring in an embodiment of the present invention.

[0053] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0055] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0056] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0057] Example 1

[0058] like Figure 1-8 As shown, a powder-drawn wire processing device includes a wire spring polishing mechanism 2; the wire spring polishing mechanism 2 is used to polish multiple thin, long, and soft wires.

[0059] Specifically, the aforementioned wire spring grinding mechanism 2 includes annular feeding end seats 21 (using annular steel plates with a radius of 55cm) spaced apart on both sides, with a plurality of grinding springs 22 fixedly connected between the annular feeding end seats 21; the two ends of the grinding springs 22 are welded between the annular feeding end seats 21. The length of the grinding springs 22 is the maximum length of the wire to be ground.

[0060] During the grinding process, the wire is contained within the spring cavity of the grinding spring 22. Simultaneously, for convenient feeding, several feeding structures communicating with the spring cavities are provided on the annular feeding end seat 21. Specifically, the feeding structure includes several feeding holes 211 on the annular feeding end seat 21, each feeding hole 211 communicating with the spring cavity; a sealing post 21111 is threaded onto the feeding hole 211. The sealing post 21111 has an integrally formed hexagonal protrusion. During operation, multiple wires are inserted through the feeding hole 211 and contained within the spring cavity. With the helical baffle of the grinding spring 22, the wire is contained within the spring cavity and is less likely to fall out.

[0061] Meanwhile, to improve grinding efficiency, the aforementioned annular feeding end seat 21 is equipped with an eccentric mechanism. During the grinding process, the eccentric mechanism drives the wire spring grinding mechanism 2 to move eccentrically (specifically, under the action of the forward and reverse motors, the rotation angle of the wire spring grinding mechanism 2 is between ±30 degrees). Specifically, an inner fixed connecting plate 212 is welded to the center part (diameter) of the annular feeding end seat 21. The inner fixed connecting plate 212 is a rectangular steel plate.

[0062] The eccentric mechanism is hinged to the inner fixed connecting plate 212. Specifically, the eccentric mechanism includes an eccentric wheel 31, the eccentric part of which is hinged to a crank 2121, which is hinged to the center of the inner fixed connecting plate 212 (both ends of the crank are hinged to the eccentric wheel 31 and the inner fixed connecting plate 212 respectively via fixed pins). Meanwhile, according to existing methods, a forward / reverse motor 3 is mounted on the rear eccentric wheel 31. Specifically, the front and rear eccentric wheels 31 are rotatably connected to the frame via rotating shafts (the wire drawing processing device also includes a frame 1, which is shaped to include a base portion 12 and a rotating connection fixing portion 11 fixed to the base portion 12, with the rotating shaft movably connected to the rotating connection fixing portion 11 of the frame 1). The forward / reverse motor 3 is fixedly mounted on the frame 1, and its output shaft is fixedly mounted on the eccentric wheel 31.

[0063] During operation, driven by the reversible motor 3, the eccentric wheels 31 on both the front and rear sides rotate. Because the crank 2121 at the eccentric position is hinged to the inner fixed connecting plate 212, the wire spring grinding mechanism 2 makes eccentric motion (the rotation angle of the wire spring grinding mechanism 2 is between ±30 degrees). During the motion, the wire in the spring cavity continuously swings in the spring cavity. During the swing, it continuously rubs against the grinding spring 22 to remove rust.

[0064] During this process, because the wire is horizontally supported in the spring cavity and the speed of the eccentric movement is constantly changing, the wire continuously slips between itself and the grinding spring 22 within the spring cavity. Specifically, during the movement of the grinding spring 22, due to its elasticity, in addition to the eccentric movement, there is also spring oscillation, which causes relative movement between the spring and the non-elastic wire. This is manifested as friction between the wire and the spring, and the friction leads to the removal of rust from the surface of the wire.

[0065] This method not only removes rust from the wire surface without bending or deforming it, but also has a very high processing efficiency, as the wire surface is quickly rubbed and removed by the grinding spring 22 during the relative movement of the wire.

[0066] Example 2

[0067] like Figure 1-8 As shown, in this embodiment, based on the structure of embodiment 1, during the eccentric motion grinding of the wire by the wire spring grinding mechanism 2, since the grinding spring 22 is elastic, in order to avoid the instability of the movement caused by the elasticity between the grinding springs 22, all the grinding springs 22 are "bound" and reinforced, thereby ensuring that the amplitude of the sway of all springs is within a stable range during the rotation.

[0068] Specifically, the wire drawing processing device also includes several binding motion mechanisms 4 fixedly connected between the grinding springs 22. The binding motion mechanisms 4 are evenly distributed along the length of the grinding springs 22, and the number of them is determined by the length of the grinding springs 22.

[0069] The specific structure of the restraint mechanism 4 is as follows:

[0070] The restraint mechanism 4 includes a fixing frame assembly 5 fixedly connected between the grinding springs 22; specifically, the fixing frame assembly 5 includes an outer annular seat 51 and an inner annular seat 52 located concentrically; the outer annular seat 51 is fixedly connected to the outside of the grinding spring 22, and the inner annular seat 52 is fixedly connected to the inside of the grinding spring 22; the outer annular seat 51 and the inner annular seat 52 are fixedly connected by a plurality of inner connecting posts 511.

[0071] Specifically, the outer annular seat 51 and the inner annular seat 52, which are concentrically arranged, fix and restrain the outer side and the inner side of the grinding spring 22. This reduces the outward deformation and bending defects of the grinding springs 22 due to speed deviations during rotation. After reinforcement, the relative movement between the grinding springs 22 is low during rotation, maintaining a stable eccentric clockwise and counterclockwise motion.

[0072] Example 3

[0073] like Figure 1-8 As shown, in this embodiment, based on the structure of embodiment 2, in order to further improve the stability of the grinding spring 22 and avoid the grinding spring 22 from being unstable during eccentric movement, the grinding spring 22 is made into a reinforced spring to improve its rigidity performance.

[0074] Example 4

[0075] like Figure 1-8 As shown, this embodiment, based on the structure of embodiment 3, aims to further improve the stability of eccentric motion and prevent the grinding spring 22 from exhibiting "outward swinging motion" due to its elasticity (because the grinding spring 22 has elastic deformation, during eccentric motion, if the eccentric force is too large, the deformable grinding spring 22 is prone to bending outward from the motion trajectory and swinging off the motion trajectory by too much). The aforementioned fixed frame assembly 5 is connected to an outer annular limiting frame 42 through several swing springs 41.

[0076] Specifically, the two ends of the swing spring 41 are fixedly connected to the outer side wall of the outer annular seat 51 and the inner side wall of the outer annular limiting frame 42, respectively; the swing springs 41 are distributed in a ring. Specifically, because the rotation angle of the wire spring polishing mechanism 2 is between ±30 degrees, for a given swing spring 41, it lengthens when moving clockwise and shortens when moving counterclockwise. However, because the rotation angle of the wire spring polishing mechanism 2 is between ±30 degrees, the swing spring 41 will not stretch or shorten indefinitely.

[0077] During the motion, because the swing spring 41 has the ability to deform in any direction, the swing springs 41 at different locations are stretched and shortened to match the eccentric motion trajectory during the eccentric motion. The reinforcement of the swing spring 41 further improves the stability of the motion. Similarly, by using the swing spring 41, the tendency of the grinding spring 22 to deform outwards and deviate from the motion trajectory during the eccentric rotational motion is reduced, thereby greatly improving the stability of the grinding process and avoiding the drawback of wire deformation during grinding.

[0078] Example 5

[0079] like Figure 1-8 As shown, in this embodiment, based on the structure of embodiment 4, the bottom of the outer annular limiting frame 42 is fixedly assembled to the frame by a mounting component. Specifically, the mounting component includes a mounting plate 43 fixedly connected to the bottom of the outer annular limiting frame 42, and the mounting plate 43 is fixedly assembled to the frame 1 by a plurality of connecting screws; a plurality of welding columns are welded to the top of the mounting plate 43, and the welding columns are welded to the bottom of the outer annular limiting frame 42.

[0080] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A powder-drawn wire processing device, characterized in that, Including wire spring grinding mechanism; The wire spring grinding mechanism includes annular feeding end seats spaced apart on both sides, and a plurality of grinding springs are fixedly connected between the annular feeding end seats. During the polishing process, the wire is contained within the spring cavity of the polishing spring; The annular feeding end seat has a feeding structure with several interconnected spring cavities; The annular feeding end seat is equipped with an eccentric mechanism. During the grinding process, the eccentric mechanism drives the wire spring grinding mechanism to move eccentrically. The powder-drawn wire processing device also includes several binding motion mechanisms fixedly connected between the grinding springs. During the grinding process, the eccentrically moving grinding springs are limited to rotate by the binding motion mechanisms. The restraint mechanism includes a fixed frame assembly that is fixedly connected between the grinding springs; The fixing frame assembly is connected to an outer annular limiting frame via several swing springs; the fixing frame assembly includes an outer annular seat and an inner annular seat at concentric positions; The outer annular seat is fixedly connected to the outside of the grinding spring, and the inner annular seat is fixedly connected to the inside of the grinding spring. The outer annular seat and the inner annular seat are fixedly connected by several inner connecting columns; the two ends of the swing spring are respectively fixedly connected to the outer side wall of the outer annular seat and the inner side wall of the outer annular limiting frame. The swing springs are distributed in a ring.

2. The powder-drawn wire processing device according to claim 1, characterized in that, The feeding structure includes a plurality of feeding holes opened on the annular feeding end seat, and the feeding holes are connected to the spring cavity; A sealing post is threaded onto the feeding hole.

3. The powder-drawn wire processing device according to claim 1, characterized in that, An inner fixing connecting plate is fixedly connected to the center of the annular feeding end seat; The eccentric mechanism is hinged to the inner fixed connecting plate.

4. The powder-drawn wire processing device according to claim 3, characterized in that, The eccentric mechanism includes an eccentric wheel, and a crank is hinged to the eccentric part of the eccentric wheel. The crank is hinged to the center of the inner fixed connecting plate. The eccentric mechanism also includes a forward and reverse motor mounted on an eccentric wheel on one side.

5. The powder-drawn wire processing device according to claim 4, characterized in that, The powder-drawn wire processing device also includes a frame; The eccentric wheel is rotatably connected to the frame.

6. The powder-drawn wire processing device according to claim 1, characterized in that, The bottom of the outer annular limiting frame is fixedly assembled to the frame by mounting components.

7. The powder-drawn wire processing device according to claim 6, characterized in that, The mounting component includes a mounting plate fixedly connected to the bottom of the outer annular limiting frame, and the mounting plate is fixedly assembled on the frame by a number of connecting screws; The top of the mounting plate is welded with several welding columns, which are welded to the bottom of the outer annular limiting frame.

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