A small, vibration-resistant wire drawing machine

Abstract

This utility model relates to a fine wire stretching machine, providing a small fine wire stretching machine with vibration-resistant offset, including a base plate, a base, a main body, and partitions. The base is fixedly mounted on the base plate, and the main body is fixedly mounted on top of the base. An operating table is slidably mounted on the front of the main body, and multiple partitions are spaced apart within the main body. This utility model effectively blocks the vibration transmission path between workstations by adopting a separate, independent installation structure for the multiple bases of the mold, avoiding the resonance amplification effect caused by traditional integral installation. Simultaneously, an adjustable air spring system is integrated at the bottom of the mold mounting plate. Utilizing its nonlinear stiffness characteristics and adaptive air pressure adjustment function, it not only isolates the high-frequency mechanical vibration generated during equipment operation but also adjusts the support stiffness in real time according to different wire tension requirements, keeping the mold in the optimal working position, thereby significantly improving the stability and processing accuracy of fine wire stretching.

Description

Technical Field

[0001] This utility model relates to a fine wire stretching machine, and more particularly to a small fine wire stretching machine that is resistant to vibration and deviation. Background Technology

[0002] Small-scale fine wire drawing machines are key equipment in precision wire processing, widely used in the production of micro-metal wires in fields such as electronic components and medical devices. In existing technologies, these machines typically employ a rigid support frame and a fixed mold base to complete wire drawing, with some models using guide wheels or limiting grooves to constrain the wire path. As the demand for finer wire diameters increases, the equipment needs to operate under high-frequency traction and low-tension conditions. However, during high-speed drawing, the wire is susceptible to mechanical vibration and dynamic imbalances in transmission components, leading to problems such as surface scratches, uneven diameter, and even wire breakage.

[0003] Current equipment has significant shortcomings in suppressing vibration and misalignment: First, the mold base often uses a rigid metal structure directly fixed to the frame, lacking effective shock absorption design. This causes vibrations from components such as the motor and drive shaft to be directly transmitted to the stretching area, resulting in periodic oscillations of the wire. Second, traditional anti-misalignment solutions rely on mechanical limit blocks or guide rollers, but these structures are themselves susceptible to vibration and micro-displacement, and rigid contact may exacerbate frictional damage to the wire. In addition, rotating components with insufficient dynamic balance calibration (such as drive shafts) can induce low-frequency resonance, further amplifying the wire vibration amplitude and affecting stretching accuracy and yield. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the objective is to provide a small fine wire drawing machine that is resistant to vibration and deviation.

[0005] The technical implementation scheme of this utility model is as follows: A small fine wire stretching machine with vibration and offset prevention includes a base plate, a base, a main body, partitions, a wire guide frame, a wire guide wheel, a mounting base, a hollow shaft motor, and guide wheels. A base is fixedly mounted on the base plate, and the main body is fixedly mounted on the top of the base. An operating table is slidably mounted on the front of the main body. Multiple partitions are spaced apart inside the main body, dividing the internal space of the main body into multiple working chambers from left to right. Each working chamber of the main body is fixedly equipped with a mold base for mounting a wire stretching mold. The bottom of the base plate... A wire guide frame is provided on the left side, and a wire guide wheel is installed on the wire guide frame. Multiple mounting seats are spaced apart at the rear of the base. The number of mounting seats is the same as the number of mold bases. Each mounting seat is equipped with a rotatable guide wheel. Each guide wheel extends into a working cavity of the main body of the equipment. The guide wheel in the working cavity is located in the left space of the mold base in the same working cavity. A hollow shaft motor is installed on each mounting seat. The output shaft of the hollow shaft motor is directly connected to the guide wheel on the same mounting seat. Wire transmission holes are opened on both the left and right sides of the main body of the equipment, and a wire guide assembly is provided at each of the wire transmission holes on the left and right sides.

[0006] More preferably, the mold base includes a fixed seat, support rods, air springs, support plates, and a mold connecting seat. The lower part of the working cavity of the main body of the equipment is fixedly provided with a fixed seat, and multiple support rods are provided on the fixed seat. Each support rod is provided with an air spring at its top. The other end of the air spring is connected to a support plate. The support plate is provided with a mold connecting seat, which is used to fix and install the wire stretching mold.

[0007] More preferably, the lead wire assembly includes a fixed frame for mounting and fixing, a wire transmission wheel, a spring block, and a return spring. The fixed frame has grooves on both the upper and lower sides, and a spring block is slidably provided in each groove. A wire transmission wheel is rotatably provided on each spring block. The transmitted wire passes between the two wire transmission wheels. A return spring is provided in each groove, and the two ends of the return spring are connected to the spring block and the fixed frame, respectively.

[0008] More preferably, it also includes a vision inspection device, a transmission component, and a second lead wire assembly. A transmission component is installed on the top left side of the support plate, and a slider is provided on each transmission component. A second lead wire assembly is fixed on the top of each slider. The structure of the second lead wire assembly is the same as that of the first lead wire assembly, and the two are arranged in the same direction. The transmission component drives the slider to move back and forth, thereby driving the second lead wire assembly to move back and forth. A vision inspection device is provided on the left side of the support plate near the second lead wire assembly, and the detection end of the vision inspection device is vertically upward.

[0009] More preferably, it also includes a drain trough, a collection trough, and a receiving frame. The front area of ​​the bottom of the main body of the equipment has a slope that is higher at the back and lower at the front. Several drain troughs are opened on the rear side of the bottom of the main body of the equipment. The bottom of the drain trough is higher at the back and lower at the front. A collection trough is opened on the front side of the bottom of the main body of the equipment. Several leakage holes are opened at the bottom of the collection trough. A receiving frame is provided on the front side of the bottom of the main body of the equipment.

[0010] More preferably, it also includes a conductor plate, with strip-shaped lead wire slots on the lead wire frame, and conductor plates symmetrically arranged in the lead wire slots.

[0011] Compared with the prior art, this utility model has the following advantages: By adopting a separate and independent installation structure for multiple bases of the mold, this utility model effectively blocks the vibration transmission path between each workstation and avoids the resonance amplification effect caused by traditional integral installation; at the same time, an adjustable air spring system is integrated at the bottom of the mold mounting plate. Utilizing its nonlinear stiffness characteristics and adaptive air pressure adjustment function, it can not only isolate the high-frequency mechanical vibration generated by the operation of the equipment, but also adjust the support stiffness in real time according to different wire tension requirements, so that the mold is always kept in the optimal working position, thereby significantly improving the stability and processing accuracy of fine wire stretching.

[0012] This invention utilizes a coaxial direct-drive structure design of a hollow shaft motor and a guide wheel, eliminating the need for intermediate transmission links such as traditional gearboxes and couplings. This achieves zero-backlash power transmission. The high torsional rigidity and low inertia of the hollow shaft motor significantly improve the dynamic response bandwidth of the guide wheel, effectively suppressing tension fluctuations. It also eliminates harmonic vibration sources caused by gear meshing or belt slippage in traditional equipment, thereby avoiding the problem of periodic wire misalignment caused by accumulated errors in the transmission system.

[0013] This invention features a dynamically adjustable lead wire assembly on the front side of the mold mounting area. Combined with a vision inspection device, it monitors the wire's fluctuation in real time. When abnormal fluctuations are detected during the stretching process due to mold wear or uneven material distribution, the control system automatically adjusts the extension of the lead wire assembly, ensuring that the wire is always precisely guided along the mold's central axis. This effectively eliminates the uneven wear problem caused by traditional fixed lead wire assemblies. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first three-dimensional structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0016] Figure 3 This is a three-dimensional structural diagram of the mold base, transmission component, and lead wire assembly II of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the lead wire assembly II of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the mold base, transmission component, and lead wire assembly II of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the main body of the device, the partition, and the liquid receiving tank of this utility model.

[0020] The components in the attached diagram are labeled as follows: 1. Base plate, 2. Base, 3. Equipment body, 31. Partition plate, 301. Drainage tank, 302. Collection tank, 33. Liquid receiving frame, 4. Lead wire frame, 41. Lead wire wheel, 42. Guide plate, 5. Mounting seat, 51. Hollow shaft motor, 52. Guide wheel, 6. Lead wire assembly one, 61. Frame, 62. Wire transmission wheel, 621. Spring block, 63. Return spring, 8. Fixed seat, 81. Support rod, 811. Air spring, 82. Support plate, 821. Vision inspection instrument, 83. Mold connecting seat, 84. Transmission component, 85. Lead wire assembly two. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example 1

[0023] A small, fine-wire drawing machine designed to prevent vibration and deviation, such as Figure 1-6 As shown, the device includes a base plate 1, a base 2, a main body 3, partitions 31, a wire guide frame 4, a wire guide wheel 41, a mounting base 5, a hollow shaft motor 51, and guide wheels 52. The base 2 is fixedly mounted on the base plate 1, and the main body 3 is fixedly mounted on top of the base 2. An operating platform is slidably mounted on the front of the main body 3. Multiple partitions 31 are spaced apart inside the main body 3, dividing the internal space into multiple independent working chambers from left to right. Each working chamber of the main body 3 is fixedly equipped with a mold base for mounting the wire drawing mold, enabling a multi-pass continuous drawing process through a modular layout. The wire guide frame 4 is located on the bottom left side of the base plate 1. The wire guide frame 4 is flexibly connected to the base plate 1 via shock-absorbing rubber pads. The wire guide wheel 41 mounted on it adopts an independent suspension structure, preventing vibrations from the wire guide frame 4 during the wire drawing stage from being transmitted into the working chambers of the main body 3 through a rigid connection, thus suppressing the vibration coupling effect at the source.

[0024] Multiple mounting seats 5 are spaced apart at the rear of the base 2, with the number of mounting seats 5 matching the number of mold bases. High-precision alignment of the guide wheel 52 axis with the mold centerline is ensured. Each mounting seat 5 has a rotatable guide wheel 52, each extending into a working cavity of the main body 3. The guide wheels 52 within the working cavity are located in the left-side space of the mold base within the same working cavity, creating spatial separation between the pre-stretching zone and the main stretching zone. A hollow shaft motor 51 is mounted on each mounting seat 5. The output shaft of the hollow shaft motor 51 is directly driven to the guide wheel 52 on the same mounting seat 5 via a spline joint. This backlash-free transmission structure reduces guide wheel speed fluctuation to ±0.05%. Simultaneously, the encoder built into the motor rotor provides real-time speed feedback, forming a closed-loop control system.

[0025] The main body of the equipment 3 has wire transmission holes on both the left and right sides, and each wire transmission hole on the left and right sides is equipped with a wire guide assembly 6. The wire to be stretched is introduced by the wire guide frame 4, passes through the left wire guide assembly 6 to the right, and then enters the leftmost working cavity of the main body of the equipment 3. It is pre-stretched by contacting the guide wheel 52, and then passes through the mold on the mold base to complete the main stretching. After the progressive processing of multiple working cavities, it is transmitted to the wire transmission hole on the right. The transmitted wire will contact the right wire guide assembly and complete the final guidance.

[0026] Among them, such as Figure 1 and Figure 3 As shown, the mold base includes a fixed seat 8, support rods 81, air springs 811, a support plate 82, and a mold connecting seat 83. Fixed seats 8 are fixedly installed in the lower part of the working cavity of the main body 3. Four rectangularly distributed support rods 81 are mounted on the fixed seats 8, and air springs 811 are mounted on the top of each support rod 81. The other ends of the air springs 811 are connected to the support plate 82. This suspended support structure reduces the natural frequency of the mold base in the vertical direction, effectively avoiding the operating frequency of the equipment. The support plate 82 is equipped with a mold connecting seat 83, which is fixed to the wire drawing mold through a pre-set module interface. The flatness error of its contact surface is less than 0.005mm, ensuring uniform distribution of contact pressure between the wire and the mold. Compared to molds installed on the same support component in conventional equipment, multiple separately installed mold bases attenuate vibration transmission through the vibration isolation effect of the air springs. Simultaneously, the independent support structure avoids resonance coupling between multiple molds.

[0027] like Figure 2 and Figure 4 As shown, the lead wire assembly 6 includes a fixed frame 61 for mounting and fixing, a lead wire wheel 62, a spring block 621, and a spring 63. The fixed frame 61 has dovetail-shaped grooves on both its upper and lower sides. A spring block 621 is slidably mounted within each groove, and a lead wire wheel 62 is rotatably mounted on each spring block 621. The transmitted wire passes between the two lead wire wheels 62, forming a dynamic wrap angle adjustment mechanism. A spring 63 is installed within each groove, with its two ends connected to the spring block 621 and the fixed frame 61, respectively. When the wire tension changes, the spring block 621 can compensate for the displacement along the groove, ensuring that the lead wire wheel 62 always maintains optimal contact pressure with the wire. This elastic adaptive structure, combined with the direct drive system of the guide wheel 52, can control the wire feeding accuracy within ±0.03mm, while effectively absorbing the lateral vibration energy generated by the high-speed movement of the wire, effectively reducing the overall vibration amplitude of the equipment and significantly improving the stability and yield of the thin wire stretching process.

[0028] Example 2

[0029] Based on Example 1, such as Figure 3As shown, it also includes a vision inspection device 821, a transmission component 84, and a second lead wire assembly 85. The transmission component 84 is installed on the top left side of the support plate 82. The transmission component 84 is securely mounted on the support plate 82 by bolts or welding to ensure operational stability. Each transmission component 84 is equipped with a slider, and the slider and transmission component 84 are slidably connected through a sliding rail. This connection allows the slider to move smoothly back and forth under the drive of the transmission component 84. A second lead wire assembly 85 is fixedly installed on the top of each slider. The second lead wire assembly 85 is securely mounted on the top of the slider by welding or snap-fit ​​connections, thus moving with the slider. The structure of the second lead wire assembly 85 is consistent with that of the first lead wire assembly 6, and their layout directions are the same. This design ensures the continuity and stability of the wire during transmission. The transmission component 84 drives the slider to move back and forth via a motor or manual operation, thereby moving the second lead wire assembly 85 back and forth. This transmission method allows the second lead wire assembly 85 to be flexibly adjusted in position according to actual needs. Vision inspection instruments 821 are installed on the left side of the support plate 82 near the second lead wire assembly 85. The vision inspection instruments 821 are mounted on the support plate 82 via brackets or bolts, with their detection ends pointing vertically upwards. The vision inspection instruments 821 are signal-connected to the transmission component 84 on the same support plate 82. When the transmission component 84 moves the second lead wire assembly 85, the vision inspection instruments 821 can detect movement in real time. The position information of the second lead wire assembly 85 is obtained and fed back to the control system so as to accurately control the movement of the transmission component 84. When the wire is transmitted from the guide wheel 52 to the mold on the mold base, it will first pass through the second lead wire assembly 85. Before passing through the second lead wire assembly 85, it will be continuously detected by the vision inspection instrument 821. The vision inspection instrument 821 can monitor the position and status of the wire in real time. Once it detects abnormalities such as wire deviation or breakage, it will immediately issue an alarm signal so that the operator can take timely measures, thereby ensuring the accuracy and stability of wire transmission and improving the production quality of the product.

[0030] In addition, such as Figure 6As shown, it also includes a drain trough 301, a collection trough 302, and a receiving frame 33. The front area of ​​the bottom of the main body 3 is provided with a slope that is higher at the back and lower at the front. This slope design allows the liquid to flow forward naturally. Several drain troughs 301 are opened on the rear side of the bottom of the main body 3. The bottom of the drain troughs 301 is higher at the back and lower at the front, which further promotes the discharge of liquid. The drain troughs 301 are connected to the working chamber inside the main body 3. When the lubricant in the working chamber accumulates, it can flow out along the drain troughs 301. A collection trough 302 is opened on the front side of the bottom of the main body 3. The collection trough 302 is connected to the drain trough 301 and is used to collect the liquid flowing out of the drain trough 301. Several leakage holes are opened at the bottom of the collection trough 302. The leakage holes can guide the liquid in the collection trough 302 to the outside of the main body 3. A liquid receiving frame 33 is provided on the front bottom side of the main body 3 of the equipment. The liquid receiving frame 33 is located below the liquid collecting tank 302 and is used to collect liquid flowing out from the leakage hole. Through this cooperative design of the drain tank 301, the liquid collecting tank 302 and the liquid receiving frame 33, the lubricant of the lubricating wires in the working chamber can be effectively collected, avoiding the accumulation of lubricant in the working chamber, reducing the interference of lubricant on the operation of the equipment, extending the service life of the equipment, and also facilitating the recycling and reuse of lubricant, thus reducing production costs.

[0031] like Figure 5 As shown, it also includes a conductor plate 42. The lead frame 4 has a strip-shaped lead wire notch, which provides a specific transmission channel for the wire. The conductor plates 42 are symmetrically arranged in the lead wire notch. The conductor plates 42 can be installed in the lead wire notch by welding or bolts. After the wire passes through the lead wheel 41, it enters the strip-shaped lead wire notch. The conductor plates 42 can limit the wire in front and behind, so that the wire always stays in the center position of the lead wire notch during the transmission process, reducing the sway amplitude of the wire, thereby reducing the fluctuation amplitude of the wire. This limiting effect makes the wire transmission more stable, reduces the friction and collision between the wire and surrounding parts, improves the service life of the wire, and also ensures the accuracy of wire transmission, thus improving the production quality of the product.

[0032] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A small thin wire stretching machine with anti-vibration and offset, comprising a base plate (1) and a base (2), wherein the base (2) is fixedly mounted on the base plate (1); Its characteristics are, It also includes a main body (3), partitions (31), a lead wire frame (4), a lead wire wheel (41), a mounting base (5), a hollow shaft motor (51), and a guide wheel (52). The main body (3) is fixedly mounted on the top of the base (2). An operating table is slidably mounted on the front of the main body (3). Multiple partitions (31) are spaced apart inside the main body (3). The partitions (31) divide the internal space of the main body (3) into multiple working chambers from left to right. A mold base is fixedly mounted in each working chamber of the main body (3) for mounting the wire drawing mold. A lead wire frame (4) is mounted on the bottom left side of the base plate (1). A lead wire wheel (41) is mounted on the lead wire frame (4). 1) The base (2) is provided with multiple mounting seats (5) at intervals at the rear. The number of mounting seats (5) is the same as the number of mold bases. Each mounting seat (5) is provided with a guide wheel (52) that rotates. Each guide wheel (52) extends into a working cavity of the main body of the equipment (3). The guide wheel (52) in the working cavity is located in the left space of the mold base in the same working cavity. Each mounting seat (5) is equipped with a hollow shaft motor (51). The output shaft of the hollow shaft motor (51) is directly connected to the guide wheel (52) on the same mounting seat (5). The main body of the equipment (3) has wire transmission holes on both the left and right sides. Each wire transmission hole on the left and right sides is provided with a lead wire assembly (6).

2. A small, anti-vibration, fine-wire drawing machine according to claim 1, characterized in that, The mold base includes a fixed seat (8), a support rod (81), an air spring (811), a support plate (82), and a mold connecting seat (83). The lower part of the working cavity of the main body of the equipment (3) is fixedly provided with a fixed seat (8). Multiple support rods (81) are provided on the fixed seat (8). Air springs (811) are provided on the top of the support rods (81). The other end of the air springs (811) is connected to the support plate (82). The mold connecting seat (83) is provided on the support plate (82). The mold connecting seat (83) is used to fix and install the wire stretching mold.

3. A small, anti-vibration, fine-wire drawing machine according to claim 2, characterized in that, The lead wire assembly (6) includes a fixed frame (61) for installation and fixing, a wire conveying wheel (62), a spring block (621) and a spring (63). The fixed frame (61) has grooves on both the upper and lower sides. The spring block (621) is slidably provided in the groove. The wire conveying wheel (62) is rotatably provided on the spring block (621). The wire will pass between the two wire conveying wheels (62). The return spring (63) is provided in the groove. The two ends of the return spring (63) are connected to the spring block (621) and the fixed frame (61) respectively.

4. A small, anti-vibration, fine-wire drawing machine according to claim 3, characterized in that, It also includes a vision inspection device (821), a transmission component (84), and a second lead wire assembly (85). The transmission component (84) is installed on the top left side of the support plate (82). The transmission component (84) is equipped with a slider. The second lead wire assembly (85) is fixed on the top of the slider. The structure of the second lead wire assembly (85) is the same as that of the first lead wire assembly (6), and the two are laid in the same direction. The transmission component (84) drives the slider to move back and forth, thereby driving the second lead wire assembly (85) to move back and forth. The vision inspection device (821) is installed on the left side of the support plate (82) near the second lead wire assembly (85). The detection end of the vision inspection device (821) is vertically upward.

5. A small, anti-vibration, fine-wire drawing machine according to claim 4, characterized in that, It also includes a drain trough (301), a collection trough (302) and a receiving frame (33). The front side of the bottom of the main body (3) is provided with a slope that is higher at the back and lower at the front. Several drain troughs (301) are opened on the rear side of the bottom of the main body (3). The bottom of the drain trough (301) is higher at the back and lower at the front. A collection trough (302) is opened on the front side of the bottom of the main body (3). Several leakage holes are opened at the bottom of the collection trough (302). A receiving frame (33) is provided on the front side of the bottom of the main body (3).

6. A small, anti-vibration, fine-wire drawing machine according to claim 5, characterized in that, It also includes a conductor plate (42), and a strip-shaped lead wire notch is opened on the lead wire frame (4), with the conductor plate (42) symmetrically arranged in front and back in the lead wire notch.

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