Annular diamond wire cutting head device

Abstract

The utility model relates to the technical field of silicon core cutting, in particular to an annular diamond wire cutting head device which comprises a first wire frame and a second wire frame, the first wire frame and the second wire frame are perpendicular to each other, a plurality of mounting beams are arranged on the upper portion and the lower portion of the first wire frame, adjusting holes are formed in the mounting beams, and the adjusting holes are communicated with the first wire frame and the second wire frame. Hanging frame devices used for fixing diamond wires are arranged in the adjusting holes of the mounting beam, the diamond wires wound on the hanging frame devices form a vertical cutting face in the middle of the first wire frame, and the diamond wires on the second wire frame form a transverse cutting face in the middle of the first wire frame. The silicon rod is cut into the needed silicon core through the vertical cutting diamond wire and the transverse cutting diamond wire, adjustment is convenient, use is easy, and various production specifications are used.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon core cutting, in particular to an annular diamond wire cutting head device. Background Art

[0002] In the manufacture of solar photovoltaic cells, cutting single crystal silicon rods or multi-crystalline silicon rods into silicon wafers is one of the key processes. Due to the high cutting efficiency and cutting accuracy of diamond wire saws, the cutting method of silicon wafers is changing from traditional mortar cutting to diamond wire saw cutting. In order to further reduce processing costs, there is an obvious trend of thinning diamond wires, because the smaller diameter of diamond wires can effectively reduce the cutting loss of crystalline silicon rods and increase the number of wafers per unit.

[0003] In the production of square silicon, diamond wires are cross-distributed to cut the silicon rods. Currently, the mainstream technical route for cutting square silicon core equipment in the market is long-wire cutting, also called open-wire cutting. It is mainly composed of a retractable wire system, a tension system, a steering hanger, rollers, and a lifting mechanism. Its structure is complex, and the transportation and storage costs of the steel wires are high. The wiring span is long during cutting, and the probability of wire breakage is high. Its single roller adopts an integrated structure or a two-section combined structure, and the steering hanger is not universal. Different hangers need to be replaced to cut square silicon cores with different side widths. Adjustment is inconvenient and it has certain limitations when used. Utility Model Content

[0004] The utility model aims to overcome the disadvantage of the prior art that it is inconvenient to adjust the silicon rod when cutting the silicon rod into square silicon of different lengths, and provides a ring-shaped diamond wire cutting head device.

[0005] The utility model is realized through the following technical scheme: a ring-shaped diamond wire cutting head device, comprising a first wire frame and a second wire frame, the first wire frame and the second wire frame are arranged perpendicular to each other, a plurality of mounting beams are arranged on the upper part and the lower part of the first wire frame, the mounting beams are provided with adjustment holes, and the adjustment holes of the mounting beams are provided with hanging rack devices for fixing the diamond wires, the diamond wires wound on the hanging rack devices form a vertical cutting surface in the middle position of the first wire frame, and the diamond wires on the second wire frame form a horizontal cutting surface in the middle position of the first wire frame.

[0006] Furthermore, a first roller is disposed in the middle of the first wire rack, a second roller is disposed in the middle of the second wire rack, and grooves for accommodating diamond wires are disposed on the first roller and the second roller.

[0007] Furthermore, the first roller and the second roller include an active part and a driven part, and the active part is connected to a driving device.

[0008] Furthermore, the rack device includes a first rack and a second rack, and a plurality of connecting wheels are provided on the upper and lower parts of the first rack, and the connecting wheels are connected to the adjusting holes through adjusting rods.

[0009] Further, the connecting wheel includes a starting wheel arranged on the upper part of the first hanging bracket, the diamond wire wound on the starting wheel is wound with the number one wheel arranged at the lower part of the first wire frame, the diameter of the number one wheel is larger than the starting wheel, the diamond wire wound on the number one wheel is wound with the number two wheel on the upper part of the first hanging bracket, the starting wheel and the number two wheel are staggered, the diamond wire wound on the number two wheel is wound with the number three wheel at the lower part of the first wire frame, and the diamond wire on the number three wheel is connected to the starting point of the diamond wire on the starting wheel after being wound up and down multiple times.

[0010] Furthermore, the second bracket has the same structure as the first bracket.

[0011] Furthermore, two of the first roller and two of the second roller are arranged on the same plane.

[0012] The beneficial effects of the utility model are as follows: the interval of the diamond wire during winding is adjusted by the first roller and the second roller, and the diamond wire is driven to rotate, the active part is connected to the driving device, and through the drive of the driving device, the groove on the driven part is clamped with the diamond wire on the left side of the connecting wheel, and the groove on the active part is clamped with the diamond wire on the right side of the connecting wheel, so that when the active part on the first roller or the second roller rotates, the diamond wire is driven to move to produce a cutting effect, and the outer tangent surface of the first roller or the second roller is higher than the outer end surface of the connecting wheel. The first roller is used to form a tensioning effect on the diamond wire, so that when the silicon rod passes through, the vertically cut diamond wire and the horizontally cut diamond wire are used to cut the silicon rod into the required silicon core. The utility model is convenient to adjust, simple to use, and can use a variety of production specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the use state of the utility model;

[0014] Figure 2 This is a schematic diagram of the first bracket structure of the utility model;

[0015] Figure 3 It is a partial side structural schematic diagram of the utility model;

[0016] Figure 4 This is a schematic diagram of the installation position structure of the first wire rack and the second wire rack of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the first roller of the utility model;

[0018] Among them: 1. starting wheel; 101. wheel No. 1; 102. wheel No. 2; 103. wheel No. 3; 104. wheel No. 4; 105. wheel No. 5; 106. wheel No. 6; 107. wheel No. 7; 108. second hanging rack; 201. first wire rack; 202. second wire rack; 203. mounting beam; 301. first roller; 302. second roller; 3011. active part; 3012. driven part. DETAILED DESCRIPTION

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] like Figure 1-5 As shown: a ring-shaped diamond wire cutting head device, the main part of which is composed of a first wire frame 201 and a second wire frame 202, which are fixedly installed vertically to each other to form a stable frame. A plurality of mounting beams 203 are evenly distributed on the upper and lower parts of the first wire frame 201, and these mounting beams 203 are provided with adjustment holes, which are waist-shaped holes, so that the bracket device can bond the intervals between the diamond wires according to different production needs to produce square silicon products of different lengths, thereby enhancing the control effect.

[0023] The rack device on the first wire rack 201 and the second wire rack 202 includes a first rack and a second rack 108, each rack is equipped with a plurality of connecting wheels, and these connecting wheels are connected to the adjusting holes on the mounting beam 203 through adjusting rods, so that the rack device can be flexibly adjusted to meet different cutting requirements.

[0024] More specifically, the connecting wheel includes a starting wheel 1 on the upper part of the first hanging frame, the diamond wire on the starting wheel 1 is wound onto the number one wheel 101 at the lower part of the first wire frame 201, the left side of the number one wheel 101 is tangent to the left side of the starting wheel 1, and the diameter of the number one wheel 101 is slightly larger than the starting wheel 1, so that the diamond wire is wound from the diamond wire on the right side of the number one wheel 101 to the number two wheel 102 at the upper part of the first hanging frame. Since the starting wheel 1 and the number two wheel 102 are staggered, interference of the diamond wire during the winding process is avoided, and the diamond wire on the number two wheel 102 is wound onto the lower part of the first wire frame 201. On the third wheel 103, the diamond wire on the third wheel 103 is wound around the upper fourth wheel 104, and then wound around the fourth wheel 104 and the lower fifth wheel 105, and then wound around the sixth wheel 106 and the seventh wheel 107. After multiple up and down windings, it is finally connected to the starting point of the diamond wire on the starting wheel 1, forming a closed cutting loop. The groove for fixing the diamond wire on the connecting wheel has a height difference of 3-5mm to prevent the diamond wire from interfering during winding. This winding method not only allows the diamond wire to remain stable during the cutting process, but also improves the cutting accuracy.

[0025] The second hanger 108 has the same structure as the first hanger, so that the diamond wire can form a complete annular cutting surface between the first hanger and the second hanger 108. The connecting wheel on the second hanger 108 has a height difference with the connecting wheel on the first hanger, and the connecting wheels between each other can also be staggered to make up for the disadvantage of too large gaps between the connecting wheel diameters, so that the spacing between the diamond wires can be adjusted to be equal. By adjusting the spacing between the connecting wheels, or replacing connecting wheels of different diameters, square silicon cutting of different specifications can be achieved to enhance the use effect. The first wire frame 201 can achieve vertical cutting, and the cutting wire on the second wire frame 202 can achieve horizontal cutting. The diamond wire on the first wire frame 201 and the diamond wire on the second wire frame 202 are spaced 30-50mm apart. This design enables the device to cut in both horizontal and vertical directions at the same time, greatly improving the cutting efficiency.

[0026] In addition, a first roller 301 is arranged at the middle position of the first wire frame 201, and a second roller 302 is arranged at the middle position of the second wire frame 202. These rollers are provided with grooves for accommodating the diamond wire, and their function is to guide the direction of the diamond wire during the cutting process and ensure the flatness and accuracy of the cutting surface. It is worth mentioning that the first roller 301 and the second roller 302 both include an active part 3011 and a driven part 3012. The active part 3011 is connected to the driving device. Through the drive of the driving device, the roller can drive the diamond wire to move at high speed to achieve the cutting function. Taking the attached figure as an example, the left side of the two first rollers 301 is the driven part 3012, and the right side is the active part 3011. The groove on the driven part 3012 is clamped with the diamond wire on the left side of the connecting wheel, and the groove on the active part 3011 is clamped with the diamond wire on the right side of the connecting wheel, so that when the active part 3011 on the first roller 301 or the second roller 302 rotates, the diamond wire is driven to move to produce a cutting effect, and the first roller 3 01 or the outer tangent surface of the second roller 302 is higher than the outer end surface of the connecting wheel, and the first roller 301 is used to form a tensioning effect on the diamond wire, and the first roller 301 is connected to the mounting beam 203 through an adjusting rod to adjust the tensioning effect of the diamond wire. They are evenly distributed on the same plane, and jointly support and guide the movement of the diamond wire through the driving of the first roller 301 and the second roller 302, so that a horizontal cutting machine vertical cutting plane is formed in the middle position of the first wire frame 201 and the second wire frame 202, so that when the silicon rod passes through, the vertically cut diamond wire and the horizontally cut diamond wire are used to cut the silicon rod into the required silicon core. It is easy to adjust, simple to use, and can be used in a variety of production specifications.

[0027] In general, the annular diamond wire cutting head device of this embodiment achieves efficient cutting of materials through ingenious structural design and flexible adjustment methods, and has broad application prospects. Its unique design and innovative structure make it more stable during the cutting process.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ring-shaped diamond wire cutting head device, characterized in that: The invention comprises a first wire frame (201) and a second wire frame (202), wherein the first wire frame (201) and the second wire frame (202) are arranged perpendicular to each other, a plurality of mounting beams (203) are arranged at the upper part and the lower part of the first wire frame (201), the mounting beams (203) are provided with adjustment holes, and a hanging device for fixing a diamond wire is arranged in each of the adjustment holes of the mounting beams (203), the diamond wire wound on the hanging device forms a vertical cutting surface at the middle position of the first wire frame (201), and the diamond wire on the second wire frame (202) forms a horizontal cutting surface at the middle position of the first wire frame (201).

2. The ring-shaped diamond wire cutting head device according to claim 1, characterized in that: A first roller (301) is arranged at the middle position of the first wire frame (201), a second roller (302) is arranged at the middle position of the second wire frame (202), and grooves for accommodating diamond wires are arranged on the first roller (301) and the second roller (302).

3. The annular diamond wire cutting head device according to claim 2, characterized in that: The first roller (301) and the second roller (302) include an active part (3011) and a driven part (3012), and the active part (3011) is connected to a driving device.

4. The annular diamond wire cutting head device according to claim 2, characterized in that: The rack device comprises a first rack and a second rack (108), wherein the upper and lower parts of the first rack are provided with a plurality of connecting wheels, and the connecting wheels are connected to the adjusting holes through adjusting rods.

5. The annular diamond wire cutting head device according to claim 4, characterized in that: The connecting wheel comprises a starting wheel (1) arranged on the upper part of the first hanging frame, the diamond wire wound on the starting wheel (1) is wound with a number one wheel (101) arranged at the lower part of the first wire frame (201), the diameter of the number one wheel (101) is larger than that of the starting wheel (1), the diamond wire wound on the number one wheel (101) is wound with a number two wheel (102) at the upper part of the first hanging frame, the starting wheel (1) and the number two wheel (102) are staggered, the diamond wire wound on the number two wheel (102) is wound with a number three wheel (103) at the lower part of the first wire frame (201), and the diamond wire on the number three wheel (103) is connected to the starting point of the diamond wire on the starting wheel (1) after being wound up and down for multiple times.

6. The annular diamond wire cutting head device according to claim 5, characterized in that: The second hanger (108) has the same structure as the first hanger.

7. The annular diamond wire cutting head device according to claim 4, characterized in that: Two of the first roller (301) and the second roller (302) are arranged on the same plane.

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