Tension wire drawing device for bonding wire production

Abstract

The utility model relates to the technical field of bonding wire production, in particular to a wire expanding and drawing device for bonding wire production. The drawing device is reasonable in structural design and mainly comprises the drawing box, the drawing motor, the rotating shaft, the drawing expansion roller, the expansion drawing spiral grooves, the connecting convex rings, the anti-falling rings and the centralizing blocks, the drawing motor drives the drawing expansion roller to rotate through the rotating shaft, the drawing expansion roller is provided with the two expansion drawing spiral grooves, and the two expansion drawing spiral grooves are connected through the connecting convex rings. The bonding wire is subjected to wire expanding and drawing through the wire expanding and drawing spiral groove, the connecting protruding ring, the anti-disengaging ring and the centralizing block jointly form a centralizing system, it can be guaranteed that the drawing and wire expanding roller keeps stable in the rotating process, and the situation that the wire is broken due to shaking of the drawing and wire expanding roller is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the wire bonding production technical field especially relates to a wire drawing device for wire bonding production. BACKGROUND

[0002] The drawing tool plays a crucial role in the wire bonding production equipment. The following is a specific elaboration of its role: First, the drawing tool, especially the drawing die, is a key component in the wire bonding production equipment. It is used to stretch and deform materials such as aluminum wire to produce wire bonding that meets specific requirements. Through precise drawing process, the size, shape and surface quality of the wire bonding can be ensured to meet the predetermined standards. Secondly, the drawing tool helps to improve the physical properties of the wire bonding. During the drawing process, the material will undergo certain tensile deformation, which not only increases the strength and hardness of the wire bonding, but also makes it have better durability and carrying capacity. This is crucial to ensure the stability and reliability of the wire bonding in subsequent use. In addition, the drawing tool also has high flexibility. Since the drawing die can be replaced and adjusted as needed, it is easy to produce wire bonding of different sizes and specifications. This flexibility enables the wire bonding production equipment to adapt to a variety of different application scenarios and needs. Finally, the drawing tool also helps to improve production efficiency. Through precise drawing control and efficient tool design, the production cycle can be significantly shortened, improving production efficiency. At the same time, since the drawing tool can ensure the uniformity of the quality and specifications of the wire bonding, it can also reduce the scrap rate and rework rate, further reducing production costs.

[0003] The traditional wire drawing device for wire bonding production has the following deficiencies: first, the drawing roller is prone to shaking during the drawing process, which may cause wire breakage; second, the drawing roller cannot be quickly cooled during the drawing process, which is not conducive to wire drawing. Therefore, it needs to be optimized and improved. SUMMARY

[0004] The utility model aims at overcoming the above problems existing in the prior art, and provides a wire drawing device for wire bonding production.

[0005] To achieve the above technical purposes and effects, the utility model is realized by the following technical scheme:

[0006] The utility model provides a kind of wire bonding production with wire drawing and drawing device, including drawing box, drawing motor is installed on the outside of the drawing box, the output end of the drawing motor is connected with the rotating shaft that enters drawing box by shaft coupling, the rotating shaft is fixed with drawing wire drawing roller outside, the drawing wire drawing roller is made of first cylindrical portion, circular truncated cone variable diameter portion and second cylindrical portion, the both ends of the second cylindrical portion are respectively connected with first cylindrical portion by circular truncated cone variable diameter portion, wire drawing spiral groove is opened in the two side surfaces of first cylindrical portion, circular truncated cone variable diameter portion and second cylindrical portion, the middle end of the rotating shaft is fixed with connecting convex ring, the outer end of the connecting convex ring is fixed with anti-off ring, the inside of the box of the drawing box is fixed with the righting block that is sleeved in the outside of connecting convex ring and anti-off ring symmetrically, two silk inlet holes are opened in the one side plate of the box of the drawing box, two silk outlet holes are opened in the other side plate of the box of the drawing box, the position of the silk inlet hole and the silk outlet hole is matched with the end position of corresponding wire drawing spiral groove.

[0007] Further, in the wire drawing and drawing device for wire bonding production, the wire drawing spiral groove includes a first uniform diameter spiral groove on the outside of the first cylindrical portion, a variable diameter spiral groove on the outside of the circular truncated cone variable diameter portion, and a second uniform diameter spiral groove on the outside of the second cylindrical portion.

[0008] Further, in the wire drawing and drawing device for wire bonding production, a hollow cavity is provided in the inside of the drawing wire drawing roller, and the outside of the rotating shaft is fixed to the inside wall of the drawing wire drawing roller through a support.

[0009] Further, in the wire drawing and drawing device for wire bonding production, a hollow heat dissipation cavity is provided in a section of the rotating shaft away from the drawing motor, one end of the hollow heat dissipation cavity is communicated with the hollow cavity of the drawing wire drawing roller through a radial through hole opened on the rotating shaft, and the other end of the hollow heat dissipation cavity is communicated with the outside.

[0010] Further, in the wire drawing and drawing device for wire bonding production, a support bearing is installed in the side plate of the drawing box to provide movable support for the rotating shaft.

[0011] Further, in the wire drawing and drawing device for wire bonding production, a filter oil tank is further installed on the outside of the drawing box, an oil extraction pipe is connected between the filter oil tank and the bottom of the drawing box, two oil injection pipes are installed in front of the top of the drawing box, and a spraying pipe is connected to the oil injection pipe to spray oil on the drawing wire drawing roller.

[0012] Further, in the wire drawing and drawing device for wire bonding production, a filter screen is provided in the inside of the filter oil tank to intercept impurities in the oil, and an oil pump is provided to provide pumping force.

[0013] Further, the wire drawing device for producing bonding wires, the wire drawing roller is made of stainless steel material.

[0014] The utility model discloses the beneficial effect is:

[0015] 1. The utility model discloses reasonable structure design, it is mainly by drawing box, drawing motor, drawing motor, pivot, drawing wire roller, wire drawing spiral groove, connecting convex ring, anti -drop ring and righting block constitute, and drawing motor utilizes pivot and drives drawing wire roller to rotate, and drawing wire roller is equipped with two wire drawing spiral grooves, utilizes wire drawing spiral groove to carry out wire drawing to bonding wire line, and connecting convex ring, anti -drop ring and righting block jointly constitute righting system, can guarantee drawing wire roller to keep stability in the rotation process, avoids its shaking and leads to the emergence of broken line etc.

[0016] 2. The utility model discloses the inside hollow cavity that is provided with in drawing wire roller, and the hollow heat dissipation cavity and radial through -hole are equipped in the section of pivot away from drawing motor, and one end of hollow heat dissipation cavity is communicated with the hollow cavity of drawing wire roller through the radial through -hole of pivot, and the other end of hollow heat dissipation cavity is communicated with the outside, and can realize the quick heat dissipation of drawing wire roller simultaneously with cooperation filter type oil injection component, benefit drawing wire.

[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages above. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0019] Figure 1 It is the structure schematic diagram of the utility model whole;

[0020] Figure 2 It is the working principle schematic diagram of drawing wire roller in the utility model;

[0021] Figure 3 It is the inside structure schematic diagram of drawing wire roller in the utility model;

[0022] Figure 4 It is the structure schematic diagram of connecting convex ring, anti -drop ring in the utility model;

[0023] Figure 5 It is the structure schematic diagram of righting block in the utility model;

[0024] Figure 6It is the structural schematic view of the filtering type oil injection assembly in the utility model;

[0025] In the drawings, the components represented by each reference sign are as follows:

[0026] 1 - drawing box, 2 - drawing motor, 3 - rotating shaft, 4 - drawing and expanding roller, 401 - first cylindrical part, 402 - circular truncated cone variable diameter part, 403 - second cylindrical part, 5 - expanding and drawing helical groove, 6 - connecting convex ring, 7 - anti-off ring, 8 - centralizing block, 9 - filter oil tank, 10 - oil extraction pipe, 11 - oil injection pipe, 12 - shower pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] As Figures 1-6 shown, the embodiment is a kind of expanding and drawing device for bonding wire production, including drawing box 1, drawing motor 2 is installed on the outside of drawing box 1, the output end of drawing motor 2 is connected with the rotating shaft 3 of drawing box 1 through shaft coupling, and the rotating shaft 3 is fixed with drawing and expanding roller 4 on the outside. Drawing and expanding roller 4 is composed of first cylindrical part 401, circular truncated cone variable diameter part 402 and second cylindrical part 403, the two ends of second cylindrical part 403 are respectively connected with first cylindrical part 401 through circular truncated cone variable diameter part 402, and expanding and drawing helical groove 5 is opened at the two side surfaces of first cylindrical part 401, circular truncated cone variable diameter part 402 and second cylindrical part 403. The middle end of drawing and expanding roller 4 located in second cylindrical part 403 is fixed with connecting convex ring 6, the outer end of connecting convex ring 6 is fixed with anti-off ring 7, and the axial thickness of anti-off ring 7 is greater than the axial thickness of connecting convex ring 6. The inner side of the box body of drawing box 1 is fixed with centralizing block 8 that is sleeved on the outside of connecting convex ring 6 and anti-off ring 7, and anti-slip chute with T-shaped cross section is opened in centralizing block 8.

[0029] In the embodiment, two wire inlet holes are opened in the one side plate of the box body of drawing box 1, two wire outlet holes are opened in the other side plate of the box body of drawing box 1, and the positions of wire inlet hole and wire outlet hole are matched with the end positions of corresponding expanding and drawing helical groove 5.

[0030] In the embodiment, expanding and drawing helical groove 5 includes first uniform diameter helical groove located on the outside of first cylindrical part 401, variable diameter helical groove located on the outside of circular truncated cone variable diameter part 402 and second uniform diameter helical groove located on the outside of second cylindrical part 403.

[0031] In the embodiment, the inside of the drawing-up spinning roller 4 is provided with a hollow cavity, and the outside of the rotating shaft 3 is fixed to the inside wall of the drawing-up spinning roller 4 through a support.

[0032] In the embodiment, the rotating shaft 3 is provided with a hollow heat dissipation cavity at a section away from the drawing motor 2, one end of the hollow heat dissipation cavity is communicated with the hollow cavity of the drawing-up spinning roller 4 through the radial through hole of the rotating shaft 3, and the other end of the hollow heat dissipation cavity is communicated with the outside.

[0033] In the embodiment, the side plate of the drawing box 1 is provided with a support bearing for providing movable support for the rotating shaft 3.

[0034] In the embodiment, the outside of the drawing box 1 is further provided with a filter oil tank 9, an oil pumping pipe 10 is connected between the filter oil tank 9 and the bottom of the drawing box 1, two oil injection pipes 11 are provided in front of the top of the drawing box 1, and the oil injection pipes 11 are connected with a spraying pipe 12 for spraying oil on the drawing-up spinning roller 4. The filter oil tank 9, the oil pumping pipe 10, the oil injection pipe 11 and the spraying pipe 12 jointly constitute a filter type oil injection assembly.

[0035] In the embodiment, the inside of the filter oil tank 9 is provided with a filter screen for intercepting impurities in the oil and an oil pump for providing pumping force.

[0036] In the embodiment, the drawing-up spinning roller 4 is made of stainless steel material.

[0037] One specific application of the embodiment is that the device mainly comprises a drawing box 1, a drawing motor 2, a rotating shaft 3, a drawing-up spinning roller 4, a spinning drawing spiral groove 5, a connecting convex ring 6, an anti-off ring 7 and a righting block 8. The drawing motor 2 drives the drawing-up spinning roller 4 to rotate through the rotating shaft 3. The drawing-up spinning roller 4 is provided with two spinning drawing spiral grooves 5 for spinning and drawing the bonding wire. The connecting convex ring 6, the anti-off ring 7 and the righting block 8 jointly constitute a righting system, which can ensure the stability of the drawing-up spinning roller 4 during rotation and avoid the occurrence of situations such as wire breakage caused by shaking. The inside of the drawing-up spinning roller 4 is provided with a hollow cavity, and the rotating shaft 3 is provided with a hollow heat dissipation cavity and a radial through hole at a section away from the drawing motor 2. One end of the hollow heat dissipation cavity is communicated with the hollow cavity of the drawing-up spinning roller 4 through the radial through hole of the rotating shaft 3, and the other end of the hollow heat dissipation cavity is communicated with the outside. In combination with the filter type oil injection assembly, the device can realize rapid heat dissipation of the drawing-up spinning roller 4, which is beneficial to the drawing-up spinning.

[0038] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A wire drawing device for bonding wire production, comprising a drawing box, characterized in that, A drawing motor is installed on the outside of the drawing box. The output end of the drawing motor is connected to a rotating shaft extending into the drawing box via a coupling. A drawing tension roller is fixed on the outside of the rotating shaft. The drawing tension roller consists of a first cylindrical part, a frustum-shaped variable diameter part, and a second cylindrical part. The two ends of the second cylindrical part are respectively connected to the first cylindrical part via the frustum-shaped variable diameter part. A tension drawing spiral groove is formed on both sides of the first cylindrical part, the frustum-shaped variable diameter part, and the second cylindrical part. The tension drawing spiral groove includes a first uniform groove located on the outside of the first cylindrical part. The drawing box has a diameter spiral groove, a diameter-changing spiral groove located outside the frustum-shaped diameter-changing section, and a second diameter-equalizing spiral groove located outside the second cylindrical section. The drawing expansion roller is fixed with a connecting convex ring at the middle end of the second cylindrical section, and an anti-detachment ring is fixed at the outer end of the connecting convex ring. The drawing box has symmetrically fixed straightening blocks sleeved on the outside of the connecting convex ring and the anti-detachment ring on the inner side of the box. Two wire inlet holes are opened on one side plate of the drawing box, and two wire outlet holes are opened on the other side plate of the drawing box. The positions of the wire inlet holes and the wire outlet holes are matched with the end positions of the corresponding wire expansion drawing spiral grooves.

2. The wire drawing device for bonding wire production according to claim 1, characterized in that, The drawing and stretching roller has a hollow cavity inside, and the outer side of the rotating shaft is fixed to the inner wall of the drawing and stretching roller by a bracket.

3. The wire expansion and drawing device for bonding wire production according to claim 2, characterized in that, The shaft has a hollow heat dissipation cavity at the section away from the drawing motor. One end of the hollow heat dissipation cavity is connected to the hollow cavity of the drawing wire expansion roller through a radial through hole on the shaft, and the other end of the hollow heat dissipation cavity is connected to the outside.

4. The wire expansion and drawing device for bonding wire production according to claim 3, characterized in that, The side plate of the pull box is equipped with a support bearing for providing movable support for the rotating shaft.

5. The wire expansion and drawing device for bonding wire production according to claim 4, characterized in that, A filter oil tank is also installed on the outside of the drawing box. An oil extraction pipe is connected between the filter oil tank and the bottom of the drawing box. Two oil spray pipes are installed between the filter oil tank and the top of the drawing box. The oil spray pipes are connected to a spray pipe for spraying oil onto the drawing expansion roller.

6. The wire expansion and drawing device for bonding wire production according to claim 5, characterized in that, The filter tank is equipped with a filter screen for intercepting impurities in the oil and an oil pump for providing pumping force.

7. The wire expansion and drawing device for bonding wire production according to claim 6, characterized in that, The drawing roller is made of stainless steel.

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