Wire drawing and straightening device

Abstract

The utility model discloses a wire drawing straightening device, including the machine table, the machine table is provided with the pretightening mechanism for metal wire pretightening in proper order, the first straightening mechanism of high -speed straightening to metal wire, the second straightening mechanism of metal wire secondary straightening, the cutting mechanism of metal wire cutting processing. The utility model pretightens metal wire through the pretightening mechanism in proper order, then carries out two -step straightening by the first straightening mechanism and the second straightening mechanism, finally carries out the cutting through the cutting mechanism, completes the automatic production mode. The first adjusting mechanism drives the first straightening seat high -speed rotation to straighten metal wire, can ensure straightening effect even if metal wire high -speed transmission, straightening effect is more thorough, can satisfy the efficient straightening of metal wire, the production demand of elastic recovery resistance, greatly improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of circuit board probe processing technology, and in particular to a wire drawing and straightening device. Background Technology

[0002] Circuit board probes are based on the fundamental principles of electrical measurement, acquiring signals through contact between the probe tip and the object being tested. With technological advancements, circuit board probes have become increasingly sophisticated, primarily achieved by straightening and cutting metal wire to a predetermined length before assembling it into the circuit board testing device. Since the metal wire is mainly wound on a spool, it requires straightening. Existing straightening methods mainly involve using multiple staggered rollers or a combination of driving and driven rollers to clamp the wire. However, these methods have drawbacks. Even after straightening, the bent metal wire is prone to elastic restoring deformation, especially under high-speed production conditions. Due to the shortened straightening time, this elastic restoring deformation becomes more pronounced. Therefore, existing straightening methods limit production efficiency. We need a better metal wire straightening design to address the problem of elastic restoring deformation caused by high-speed production and further improve the processing efficiency of the metal wire. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wire drawing and straightening device.

[0004] To achieve the above objectives, a wire straightening device includes a machine base. The machine base is sequentially equipped with a pre-tensioning mechanism for pre-tensioning the metal wire, a first straightening mechanism for high-speed straightening of the metal wire, a second straightening mechanism for secondary straightening of the metal wire, and a cutting mechanism for cutting the metal wire. The first straightening mechanism includes a first straightening frame and a first straightening seat rotatably mounted on the first straightening frame. The first straightening seat has a straightening groove that allows the metal wire to pass through. First rotating shafts rotatably connected to the first straightening frame are respectively provided at both ends of the first straightening seat. A first drive motor is connected to the first rotating shaft to drive its rotation. The shafts are concentrically arranged, and each shaft has a threading hole that allows the metal wire to pass through and communicates with the straightening groove. Multiple first straightening components extending towards the shaft are respectively provided on opposite sides of the first straightening seat, and the first straightening components on both sides of the first straightening seat are arranged in an alternating pattern.

[0005] The coiled metal wire is pre-tightened by a pre-tightening mechanism, then straightened in two steps by a first straightening mechanism and a second straightening mechanism, and finally cut by a cutting mechanism, completing the automated production process. The first straightening mechanism guides the metal wire through a coaxial threading hole and straightening groove on a first straightening seat. First straightening components on opposite sides of the first straightening seat extend towards the axis to alternately press against the metal wire. A first drive motor drives the first straightening seat to rotate at high speed, causing the first adjusting components to generate a 360° circumferential pressing force on the metal wire. Even with high-speed wire transmission, the straightening effect is ensured, resulting in a more thorough straightening effect. This meets the production requirements for efficient straightening and resistance to elastic recovery of the metal wire, greatly improving production efficiency.

[0006] Preferably, the first straightening component includes a first straightening rod, the end of which is provided with a straightening plane, and the end of the first straightening rod extends through the axis of the first rotating shaft.

[0007] By pressing the metal wire with staggered straightening planes, a surface-contact effect can be produced, increasing the effective contact area for straightening the metal wire. The metal wire passes through multiple straightening planes during its journey, completing multiple straightening processes to ensure the straightening effect.

[0008] Preferably, the first straightening mechanism is provided in multiple sets, arranged in a coaxial front-to-back configuration.

[0009] Setting up multiple sets of first straightening mechanisms can better improve the straightening effect of metal wires, and the number of sets can be adjusted according to actual production needs.

[0010] Preferably, the second straightening mechanism includes a second straightening frame and a driven roller and a driving roller that are correspondingly arranged on the second straightening frame. The two ends of the driven roller and the driving roller are respectively rotatably connected to the second straightening frame. The driven roller is movably arranged on the second straightening frame. The second straightening frame is provided with limiting rods that limit the up and down movement of the ends of the driven rollers. A buffer spring is sleeved on the limiting rods.

[0011] The second straightening mechanism uses a buffer spring to drive the driven roller to press the metal wire and cooperate with the driving roller to clamp the metal wire, thereby straightening and conveying the metal wire at the same time. The driven roller, which can move up and down, can avoid excessive pressure on the metal wire and can also be used for straightening metal wires of different diameters. The spring buffers and suppresses the vibration of the driven roller during operation, while the limit rod limits the height of the driven roller's fluctuations.

[0012] Preferably, the other end of the driven roller is connected to the end gear of the driving roller, and the other end of the driving roller is connected to a second drive motor that drives its operation.

[0013] Preferably, the cutting mechanism includes a cutting frame and a cutting seat. The cutting seat is provided with a cutting hole that allows metal wire to pass through. The cutting hole and the threading hole are arranged coaxially. The cutting frame is provided with a cutting cylinder. The output end of the cutting cylinder is connected to a cutter that cuts the metal wire passing through the cutting hole.

[0014] The coaxial setting of the cutting hole and the threading hole ensures the straightness of the metal wire during the straightening process. The cutting cylinder drives the cutter to automatically cut the metal wire according to the probe length requirements, thus completing the automated operation.

[0015] Preferably, the pre-tightening mechanism includes a detection wheel and pre-tightening wheels respectively disposed on both sides of the detection wheel to pre-tighten the metal wire. The detection wheel is provided with a sensing element, and the pre-tightening mechanism is provided with a sensor that matches the sensing element for sensing the number of rotations of the detection wheel.

[0016] The pre-tensioning mechanism pre-tensions the metal wire through the pre-tensioning wheel. The metal wire drives the detection wheel to rotate, and the sensor calculates the number of rotations of the detection wheel by detecting the sensing element, thereby estimating the feed length of the metal wire.

[0017] Preferably, the machine base is further provided with a feeding mechanism for feeding material to the pre-tightening mechanism. The feeding mechanism includes a feeding tray, which is connected to a feeding motor that drives its operation. The feeding tray has a plurality of strip grooves arranged in a circular array, with one end of each strip groove radiating outwards from the center of the feeding tray.

[0018] The feeding mechanism is used to place the coiled metal wires. The feeding motor drives the metal wires to be fed. The strip groove is used to accommodate coiled metal wires of different diameters for installation and fixation.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention sequentially pre-tightens the metal wire through a pre-tightening mechanism, then straightens it in two steps through a first straightening mechanism and a second straightening mechanism, and finally cuts it through a cutting mechanism, completing an automated production process. The first straightening mechanism guides the metal wire through a coaxial threading hole and straightening groove on a first straightening seat. First straightening components on opposite sides of the first straightening seat extend towards the axis to alternately press against the metal wire. A first drive motor drives the first straightening seat to rotate at high speed, causing the first adjusting components to generate a 360° circumferential pressing force on the metal wire. Even with high-speed wire transmission, the straightening effect is ensured, resulting in a more thorough straightening effect. This meets the production requirements for efficient straightening and resistance to elastic recovery of the metal wire, greatly improving production efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the embodiments will be briefly introduced below.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the feeding mechanism of this utility model.

[0024] Figure 3 This is a schematic diagram of the pre-tightening mechanism of this utility model.

[0025] Figure 4 This is a schematic diagram of the first straightening mechanism of this utility model.

[0026] Figure 5 This is a schematic diagram of the first straightening component of this utility model.

[0027] Figure 6 This is a schematic diagram of the second straightening mechanism of this utility model.

[0028] Figure 7 This is a schematic diagram of the cutting mechanism of this utility model. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0030] This utility model provides a wire drawing and straightening device, such as Figures 1-7 As shown, the machine includes a machine base 100, on which are arranged in sequence according to the processing steps: a feeding mechanism 1 for feeding coiled metal wire, a pre-tensioning mechanism 2 for pre-tensioning the metal wire, a first straightening mechanism 3 for high-speed straightening of the metal wire, a second straightening mechanism 4 for secondary straightening of the metal wire, and a cutting mechanism 5 for cutting the metal wire. The feeding mechanism 1, the pre-tensioning mechanism 2, the first straightening mechanism 3, the second straightening mechanism 4, and the cutting mechanism 5 process the metal wire in sequence, forming a complete production line process flow. The machine base 100 can be set up with multiple production lines according to production needs.

[0031] The feeding mechanism 1 includes a feeding tray 11 on which a disc-shaped metal wire is placed. The feeding tray 11 is connected to a feeding motor 12 that drives its operation. The feeding tray 11 has a plurality of strip-shaped grooves 13 arranged in a circular array, with one end of each groove 13 radiating outwards from the center of the feeding tray 11. The disc-shaped metal wire is fixedly installed to the feeding tray 11 via the strip-shaped grooves 13. The strip-shaped grooves 13 can accommodate disc-shaped metal wires of different diameters. The installation method between the disc-shaped metal wire and the feeding tray 11 can be any existing technology achieved by cooperating with the strip-shaped grooves 13, such as screw connection.

[0032] The pre-tensioning mechanism 2 includes a detection wheel 21 and pre-tensioning wheels 22 respectively disposed on both sides of the detection wheel 21 to pre-tension the metal wire. The detection wheel 21 is provided with a sensing element 23. When the metal wire passes through the detection wheel 21, it drives the detection wheel 21 to rotate. The pre-tensioning mechanism 2 is provided with a sensor 24 that matches the sensing element 23 to sense the number of rotations of the detection wheel 21. The sensor 24 and the sensing element 23 work together to monitor the number of rotations of the detection wheel 21 and calculate the amount of metal wire fed.

[0033] The first straightening mechanism 3 includes a first straightening frame 31 and a first straightening seat 32 rotatably mounted on the first straightening frame 31. The first straightening seat 32 is provided with a straightening groove 33 that allows a metal wire to pass through. First rotating shafts 34, rotatably connected to the first straightening frame 31, are respectively provided at both ends of the first straightening seat 32. A first drive motor 35 is connected to each rotating shaft 34 to drive its rotation. The shafts of the first rotating shafts 34 are concentrically arranged, and each shaft has a threading hole 36 that allows a metal wire to pass through, communicating with the straightening groove 33. The metal wire enters the straightening groove 33 through the threading hole 36 at the front end and exits through the threading hole 36 at the rear end. The first straightening seat 32 is positioned with its opposite sides... Multiple first straightening elements 37 are provided extending towards the shaft. The first straightening elements 37 press against the metal wire to generate a certain pressure. The first straightening elements 37 on both sides of the first straightening seat 32 are staggered, thereby generating vertical pressure on the metal wire from the staggered arrangement. Its effect is similar to the straightening effect of the existing staggered wheel assembly structure on the metal wire. The first drive motor 35 drives the first straightening frame 31 to rotate at high speed. Under the high-speed rotation, the first straightening elements 37 generate a 360° circumferential clamping force on the metal wire, which can produce a straightening effect with stronger resistance to elastic deformation, and the straightening effect is faster and more thorough. At the same time, it can adapt to high-speed metal wire transmission and straightening, and has the advantages of good straightening effect and high efficiency.

[0034] In one embodiment, the first straightening member 37 includes a first straightening rod 38, which is fixedly connected to the first straightening seat 32 by screws. The other end of the first straightening rod 38 is provided with a straightening plane 39. The end of the first straightening rod 38 extends through the axis of the first rotating shaft 34, and the straightening plane 39 presses against the metal wire to generate a clamping force on the metal wire.

[0035] In one embodiment, the first straightening mechanism 3 is provided in multiple sets, arranged in a coaxial front-to-back configuration.

[0036] The second straightening mechanism 4 includes a second straightening frame 41 and a driven roller 42 and a driven roller 43, which are correspondingly arranged on the second straightening frame 41. The two ends of the driven roller 42 and the driven roller 43 are rotatably connected to the second straightening frame 41. The metal wire passes between the driven roller 43 and the driven roller 42. The driven roller 43 and the driven roller 42 clamp the metal wire and drive it forward. At this time, the second straightening mechanism 4 responds to the pre-tensioning mechanism 2 to tension both ends of the metal wire, further improving the straightening effect of the metal wire in the first straightening mechanism 3. The driven roller 42 is movably arranged on the second straightening frame 41. The second straightening frame 41 is provided with limiting rods 44 that limit the vertical movement of the ends of the driven roller 42. The limiting rods 44 are adjustable connecting parts and can be implemented using any existing technology, such as bolts or screws. This allows the height of the driven roller 42 to be limited according to the diameter of the metal wire to be straightened. A buffer spring 45 is fitted onto the limiting rod 44. This serves two purposes: first, it drives the driven roller 42 to press the metal wire; second, it acts as a buffer when the driven roller 42 undulates. This ensures the pressing force on the metal wire while preventing excessive pressure that could damage or deform the wire. The other end of the driven roller 42 is connected to a gear 46 at the end of the driving roller 43. The other end of the driving roller 43 is connected to a second drive motor 47 that drives its operation. The connection between the second drive motor 47 and the driving roller 43 can be implemented using any existing technology. It is important to note that the driving roller 43 and the driven roller 42 are driven by the gear 46, and the amplitude of the undulation of the driven roller 42 must not cause the gear 46 to disengage.

[0037] The cutting mechanism 5 includes a cutting frame 51 and a cutting seat 52. The cutting seat 52 is provided with a cutting hole 53 that allows metal wire to pass through. The cutting hole 53 is arranged coaxially with the thread hole 36. The cutting frame 51 is provided with a cutting cylinder 54. The output end of the cutting cylinder 54 is connected to a cutter 55 that cuts the metal wire passing through the cutting hole 53.

[0038] Working principle:

[0039] The coiled metal wire is installed on the feeding tray 11. The feeding motor 12 drives the feeding tray 11 to rotate and feed the metal wire. After passing through the pre-tensioning wheel 22 and the detection wheel 21, the metal wire enters the wire threading hole 36. It is then led out from the wire threading hole 36 at the rear end through the straightening groove 33. The first straightening element 37 in the straightening groove 33 alternately presses against the metal wire. The first drive motor 35 drives the first straightening seat 32 to drive the first straightening element 37 to rotate at high speed around the axis of the wire threading hole 36, thereby straightening the metal wire. The straightened metal wire passes between the driving roller 43 and the driven roller 42 for further straightening. Finally, it passes through the cutting hole 53. The cutting cylinder 54 drives the cutter 55 to fall and cut the metal wire according to the required metal wire length. The cut part is the probe raw material.

[0040] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A wire drawing and straightening device, characterized in that, The device includes a machine base, on which are sequentially arranged a pre-tensioning mechanism for pre-tensioning metal wires, a first straightening mechanism for high-speed straightening of metal wires, a second straightening mechanism for secondary straightening of metal wires, and a cutting mechanism for cutting metal wires. The first straightening mechanism includes a first straightening frame and a first straightening seat rotatably mounted on the first straightening frame. The first straightening seat is provided with a straightening groove that allows metal wires to pass through. The first straightening seat has a first rotating shaft at each end that is rotatably connected to the first straightening frame. The first rotating shaft is connected to a first drive motor that drives it to rotate. The shafts of the first rotating shafts are concentrically arranged and each shaft has a threading hole that allows metal wires to pass through and communicates with the straightening groove. Multiple first straightening components are provided on opposite sides of the first straightening seat, extending toward the shaft. The first straightening components on both sides of the first straightening seat are arranged in an alternating manner.

2. A drawing and straightening device according to claim 1, characterized in that The first straightening component includes a first straightening rod, the end of which is provided with a straightening plane, and the end of the first straightening rod extends through the axis of the first rotating shaft.

3. A wire drawing and straightening device according to claim 1, characterized in that The first straightening mechanism is provided in multiple sets, arranged in a coaxial front-to-back configuration.

4. A wire drawing and straightening device according to claim 1, characterized in that The second straightening mechanism includes a second straightening frame and a driven roller and a driven roller that are correspondingly arranged on the second straightening frame. The two ends of the driven roller and the driven roller are rotatably connected to the second straightening frame. The driven roller is movably arranged on the second straightening frame. The second straightening frame is provided with limiting rods that limit the up and down movement of the ends of the driven rollers. A buffer spring is sleeved on the limiting rods.

5. A wire drawing and straightening device according to claim 4, characterized in that The other end of the driven roller is connected to the end gear of the driving roller, and the other end of the driving roller is connected to a second drive motor that drives its operation.

6. A wire drawing and straightening device according to claim 1, characterized in that The cutting mechanism includes a cutting frame and a cutting seat. The cutting seat is provided with a cutting hole that allows metal wire to pass through. The cutting hole and the threading hole are arranged coaxially. The cutting frame is provided with a cutting cylinder. The output end of the cutting cylinder is connected to a cutter that cuts the metal wire passing through the cutting hole.

7. A wire drawing and straightening device according to claim 1, characterized in that The pre-tensioning mechanism includes a detection wheel and pre-tensioning wheels respectively disposed on both sides of the detection wheel to pre-tension the metal wire. The detection wheel is provided with a sensing element, and the pre-tensioning mechanism is provided with a sensor that matches the sensing element for sensing the number of rotations of the detection wheel.

8. A wire drawing and straightening device according to claim 1, characterized in that The machine platform is also equipped with a feeding mechanism for feeding material to the pre-tightening mechanism. The feeding mechanism includes a feeding tray, which is connected to a feeding motor that drives its operation. The feeding tray has multiple strip grooves arranged in a ring array, with one end of each strip groove radiating outwards from the center of the feeding tray.

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