guide wheel module

Abstract

The utility model relates to the technical field of silicon core cutting, provide a guide pulley module for silicon core cutting tool rest, each group guide pulley module includes two symmetrical arrangement's guide pulley, every guide pulley is equipped with one rotation assembly's overbridge wheel and is located between two guide pulleys, and the cutting line reciprocating shuttles on two guide pulleys and two overbridge wheels and forms cutting wiring. Therefore, the overbridge wheel is arranged correspondingly with the guide pulley and is wound with the cutting line to form the cutting wiring, realizes cutting, can shorten the cutting line bow, further shortens the cutting length, can cut longer silicon rod.

Description

Technical Field

[0001] This utility model relates to the field of silicon core cutting technology, specifically to a guide wheel module. Background Technology

[0002] Currently, the main method for cutting silicon cores using vertical wire cutting equipment is to wind the cutting wire around a guide roller, which then pulls the wire taut to achieve cutting. However, this method results in a significant wire bow, requiring a considerable amount of time to grind the bow during cutting, thus leading to a longer cutting time. Utility Model Content

[0003] To solve one of the aforementioned technical problems, this utility model proposes the following technical solution.

[0004] The first aspect of this utility model provides a guide wheel module for a silicon core dicing stage. Each guide wheel module includes two symmetrically arranged guide wheels. Each guide wheel is equipped with a rotating bridge wheel located between the two guide wheels. The cutting line reciprocates on the two guide wheels and the two bridge wheels to form a cutting line.

[0005] In addition, the guide wheel module according to the above embodiments of the present invention may also have the following additional technical features.

[0006] In some examples, in the initial state, the cutting line is configured as a horizontal wiring and is tangent to the guide wheel and the bridge wheel, respectively.

[0007] In some examples, the guide wheel modules are an even number of groups, with adjacent groups of guide wheel modules being vertically offset so that the corresponding wiring layers have a gap in the vertical direction and are parallel to each other in the initial state.

[0008] In some examples, the main shaft of the bridge wheel is parallel to the main shaft of the corresponding guide wheel, the top of the bridge wheel is higher than the top of its corresponding guide wheel, the distance between the top of the bridge wheel and the top of the corresponding guide wheel is not higher than a preset value, and the bridge wheel rotates under the drive of the corresponding guide wheel.

[0009] In some examples, the guide wheel includes a driving wheel and a driven wheel that cooperate with each other, and the bridge wheel includes a first bridge driven wheel and a second bridge driven wheel. The first bridge driven wheel and the second bridge driven wheel rotate independently and are respectively arranged corresponding to the driving wheel and the driven wheel.

[0010] In some examples, the outer diameter of the bridge wheel is smaller than the outer diameter of the guide wheel.

[0011] In some examples, the guide wheel module also includes a bridge wheel seat mounted on the tool holder base, with the main shaft of the bridge wheel mounted on the bridge wheel seat.

[0012] The technical solution of this utility model embodiment adopts a bridge wheel and a guide wheel to be set in correspondence and to wind the cutting line to form a cutting line, thereby realizing cutting. This can shorten the bow of the cutting line, thereby shortening the cutting time and enabling the cutting of longer silicon rods. Attached Figure Description

[0013] Figure 1 This is a top view of a silicon core dicing stage, which is an example of the present invention.

[0014] Figure 2 This is a schematic diagram showing the relative positions of the guide wheel and the bridge wheel in one embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram showing the positions of two adjacent guide wheels in the vertical direction, which is an example of this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of a bridge wheel seat as an example of this utility model.

[0017] Reference numerals in the attached diagram: 1. Guide wheel; 2. Bridge wheel; 3. Cutting line; 4. Bridge wheel seat; 11. Driving wheel; 12. Driven wheel; 21. First bridge driven wheel; 22. Second bridge driven wheel. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This invention addresses the problem of long cutting times and low cutting efficiency caused by large wire bows in related technologies by proposing a guide wheel module that can solve the problem by shortening the wire bow.

[0020] Figure 1 This is a top view of a silicon core dicing stage, which is an example of the present invention.

[0021] This guide wheel module is used in silicon chip dicing stations, such as... Figure 1 As shown, each guide wheel module includes two symmetrically arranged guide wheels 1. Each guide wheel 1 is equipped with a rotating bridge wheel 2 located between the two guide wheels 1. The cutting line 3 shuttles back and forth on the two guide wheels 1 and the two bridge wheels 2 to form a cutting line for cutting silicon rods.

[0022] The cutting wire 3 is used to cut the silicon rod, and it can be diamond wire. Viewed from above, the planar distance between the two bridge wheels 2 in each guide wheel module is less than the planar distance between the two guide wheels 1.

[0023] Figure 2 This is a schematic diagram showing the relative positions of the guide wheel and the bridge wheel in one embodiment of the present invention.

[0024] like Figure 2 As shown, in the initial state, the cutting line 3 is configured as a horizontal wiring, and the cutting line 3 is tangent to both the guide wheel 1 and the bridge wheel 2. In each guide wheel module, the cutting line 3 between the two bridge wheels 2 is configured as a horizontal wiring, forming a cutting wiring layer. The cutting wiring layers of each guide wheel module are staggered vertically, that is, their heights are different. The overlapping part of the vertical projection of each cutting wiring layer forms a cutting area for cutting silicon rods.

[0025] The structure of the bridge wheel 2 is similar to that of the guide wheel 1, but each guide wheel 1 includes a driving wheel and a driven wheel (one driving and one driven). All bridge wheels 2 are driven wheels. The driving wheel has a keyway but no bearing, while the driven wheel has a bearing.

[0026] Specifically, this utility model is applied to the silicon core cutting blade table of a vertical wire cutting equipment, with reference to... Figure 1 When the tool holder includes two sets of guide wheel modules, the four guide wheels 1 are symmetrically arranged in pairs on the tool holder base. When viewed from above, the two bridge wheels 2 in each module are located inside the tool holder base, and the two guide wheels 1 are located outside the base.

[0027] Reference Figure 2 The bridging wheel 2 does not contact the corresponding guide wheel 1. The top of the bridging wheel 2 is higher than that of the guide wheel 1, meaning that in the height direction, the cutting line 3 on the bridging wheel 2 is higher than that on the guide wheel 1, ensuring that the cutting line 3 can be wound around the bridging wheel 2 and the guide wheel 1. The bridging wheel 2 is a driven wheel, rotating under the drive of the corresponding guide wheel 1. During operation, the rotation of the guide wheel 1 drives the rotation of the bridging wheel 2, and the cutting line 3 intersects and forms a cross shape under the drive of the guide wheel. Figure 1 The square intersection shown has a cutting mesh used for cutting silicon rods. During cutting, the silicon rod is perpendicular to the cutting mesh and fixed, with the cutter head located at the lower end of the silicon rod, and the cutter head cuts from bottom to top.

[0028] Because each guide roller 1 has a bridging roller 2, the overhang length of the cutting line 3 between two guide rollers 1 can be shortened, making the bow of the cutting line 3 smaller when the tool table cuts upwards, saving time on grinding the bow, and thus shortening the cutting time. The smaller bow of the cutting line can shorten the spacing between the multi-layer cutting wires, thereby reducing the overall height of the tool table and allowing for the cutting of longer silicon rods.

[0029] Therefore, the guide wheel module of this utility model adopts a bridge wheel and guide wheel to be arranged in correspondence and wrapped with the cutting line to form a cutting line, thereby realizing cutting. This can shorten the bow of the cutting line, thereby shortening the cutting time and enabling the cutting of longer silicon rods.

[0030] In one example, the guide wheel module is an even array, such as... Figure 3 As shown, two adjacent sets of guide wheel modules are staggered vertically, so that the corresponding wiring layers have gaps in the vertical direction and are parallel to each other in the initial state.

[0031] Specifically, even-numbered guide wheel modules, such as two or four groups, are regularly arranged on the tool holder base. The heights of the guide wheels 1 and the bridge wheels 2 in each group of guide wheel modules are different and can increase sequentially. The height distance between all guide wheels 1 and their corresponding bridge wheels 2 is the same. (Refer to...) Figure 2 Since the heights of two adjacent guide wheels 1 are different, the heights of two adjacent bridge wheels 2 are also different, resulting in different heights of the wiring layers on the two adjacent guide wheels 1. This causes the wiring layers formed by the cutting lines 3 to have gaps in the vertical direction, and the gaps between two adjacent wiring layers can be the same.

[0032] In one example, refer to Figure 2 , Figure 3 The main shaft of the bridge wheel 2 is parallel to the main shaft of the corresponding guide wheel 1. The top of the bridge wheel 2 is higher than the top of its corresponding guide wheel 1. The distance between the top of the bridge wheel 2 and the top of the corresponding guide wheel 1 is not higher than a preset value. The bridge wheel 2 rotates under the drive of the corresponding guide wheel 1.

[0033] The specific preset value can be determined according to the actual structure, for example, it can be about 20mm, but it cannot be too high, so as to ensure that the cutting line 3 can be wrapped around the guide wheel 1 and tangent to the guide wheel 1. The outer diameter of the bridge wheel 2 can be smaller than the outer diameter of the guide wheel 1.

[0034] The guide wheel 1 and the corresponding bridge wheel 2 are each provided with a groove for winding the cutting line 3 (set along the line direction). The number of grooves can be determined based on actual needs, for example, it can be an even number.

[0035] In one example, refer to Figure 1 The guide wheel 1 includes a driving wheel 11 and a driven wheel 12 that cooperate with each other. One end of the axle of the driving wheel 11 and one end of the axle of the driven wheel 12 can be fixedly connected to achieve centering. The bridge wheel 2 includes a first bridge driven wheel 21 and a second bridge driven wheel 22. The first bridge driven wheel 21 and the second bridge driven wheel 22 rotate independently and are respectively arranged corresponding to the driving wheel 11 and the driven wheel 12 of the guide wheel 1.

[0036] That is, the first bridge driven wheel 21 is configured to cooperate with the corresponding driving wheel 11, and the second bridge driven wheel 22 is configured to cooperate with the corresponding driven wheel 12. The two bridge driven wheels rotate independently of each other. The first bridge driven wheel 21 rotates under the drive of the driving wheel 11, and the driven wheel 12 and the second bridge driven wheel 22 both rotate under the drive of the driving wheel 11.

[0037] In one example, refer to Figure 3 The guide wheel module may also include Figure 4 The bridge wheel seat 4 shown is mounted on the tool holder base, and the bridge wheel 2 is mounted on the corresponding bridge wheel seat 4 via the main shaft.

[0038] The bridge wheel seat 4 is a U-shaped support with holes at both ends. The two ends of the main shaft of the bridge wheel 2 are respectively inserted into the holes of the bridge wheel seat 4 to realize the installation and fixation of the main shaft of the bridge wheel 2.

[0039] Specifically, the first bridge driven wheel 21 and the second bridge driven wheel 22 have the same structure, which can be the same as or similar to the structure of the driven wheel 12. The first bridge driven wheel 21 and the second bridge driven wheel 22 can use a main shaft (both ends are fixed to the two ends of the bridge wheel seat 4), or they can use bridge wheel axles (in which case the two bridge wheel axles are fixedly connected to each other and jointly fixed to the bridge wheel seat 4).

[0040] In one example, the guide wheel module may also include a drive structure and a swing angle adjustment structure disposed on the tool holder base, wherein the drive structure is used to drive the guide wheel 1 to rotate, and the swing angle adjustment structure is used to adjust the angle between the cutting line 3 and the guide wheel 1 and the bridge wheel 2 respectively.

[0041] Specifically, the drive structure may include a motor, and the drive wheel and driven wheel are provided with an even number of equally spaced wire grooves for winding the cutting wire 3. The motor drives the drive wheel 11 to rotate, so as to drive the cutting wire 3 to move through the driven wheel 12, the first bridge driven wheel 21 and the second bridge driven wheel 22, and tension the cutting wire to form a cross cutting mesh to cut the silicon rod.

[0042] The included angle is adjusted by the swing angle adjustment structure, so that the cutting line is approximately tangent to the guide wheel 1 and the bridge wheel 2 respectively, thus avoiding the cutting line from breaking due to vibration and twisting.

[0043] In summary, this embodiment of the invention uses a bridge wheel to shorten the suspended length of the cutting line, resulting in a smaller wire bow when the cutting line cuts upwards, saving time on wire bow grinding, and thus shortening the cutting time. The smaller wire bow also shortens the height of the intersecting lines of the cutting mesh, reducing the overall height of the blade body. Therefore, compared to solutions that do not use a bridge wheel, it is possible to cut longer silicon rods.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A guide wheel module for use in a silicon core dicing stage, characterized in that, Each guide wheel module includes two symmetrically arranged guide wheels (1), each guide wheel (1) is equipped with a rotating bridge wheel (2) and is located between the two guide wheels (1), and the cutting line (3) shuttles back and forth on the two guide wheels (1) and the two bridge wheels (2) to form a cutting line.

2. The guide wheel module according to claim 1, characterized in that, In the initial state, the cutting line (3) is configured to be horizontally laid, and the cutting line (3) is tangent to the guide wheel (1) and the bridge wheel (2) respectively.

3. The guide wheel module according to claim 1, characterized in that, The guide wheel module is an even array, with adjacent groups of guide wheel modules staggered vertically so that the corresponding wiring layers have gaps in the vertical direction and are parallel to each other in the initial state.

4. The guide wheel module according to claim 2, characterized in that, The main shaft of the bridge wheel (2) is parallel to the main shaft of the corresponding guide wheel (1). The top of the bridge wheel (2) is higher than the top of its corresponding guide wheel (1). The distance between the top of the bridge wheel (2) and the top of the corresponding guide wheel (1) is not higher than a preset value. The bridge wheel (2) rotates under the drive of the corresponding guide wheel (1).

5. The guide wheel module according to claim 4, characterized in that, The guide wheel includes a driving wheel (11) and a driven wheel (12) that cooperate with each other. The bridge wheel includes a first bridge driven wheel (21) and a second bridge driven wheel (22). The first bridge driven wheel (21) and the second bridge driven wheel (22) rotate independently and are respectively arranged corresponding to the driving wheel (11) and the driven wheel (12).

6. The guide wheel module according to claim 1, characterized in that, The outer diameter of the bridge wheel (2) is smaller than the outer diameter of the guide wheel (1).

7. The guide wheel module according to claim 1, characterized in that, It also includes a bridge wheel seat (4) mounted on the tool holder base, wherein the main shaft of the bridge wheel (2) is mounted on the bridge wheel seat (4).

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