CN220614542U

CN220614542U - Cutting device and cutting equipment

Info

Publication number: CN220614542U
Application number: CN202321369836.XU
Authority: CN
Inventors: 刘克村; 朱鹏飞; 郭世锋
Original assignee: Qingdao Gaoce Technology Co Ltd
Current assignee: Qingdao Gaoce Technology Co Ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2024-03-19
Anticipated expiration: 2033-05-31

Abstract

The embodiment of the application provides a cutting device and cutting equipment, wherein, cutting device includes: a head frame; a cutting unit comprising at least three cutting wheels around which a cutting tool may be wound; the cutting tool between two adjacent cutting wheels is used for cutting a piece to be cut; the at least three cutting wheels form at least two cutting stations. The cutting device and the cutting equipment provided by the embodiment of the application can improve the cutting efficiency by times.

Description

Cutting device and cutting equipment

Technical Field

The application relates to cutting technology, in particular to a cutting device and cutting equipment.

Background

The silicon wafer is a main raw material for manufacturing the solar cell, and the production process of the silicon wafer comprises the following steps: firstly, square bars with rectangular cross sections are obtained by square cutting of cylindrical silicon bars, and then the square bars are cut into thin silicon wafers. In the silicon rod squaring technology, a silicon rod is generally cut by using a loop cutting line or a long line cutting line which moves at a high speed, and four side skins are cut off to obtain a square rod. The traditional squaring machine is generally provided with only one cutting station, and can cut only one silicon rod at a time, so that the efficiency is low.

Disclosure of Invention

In order to solve one of the above technical drawbacks, an embodiment of the present application provides a cutting device and a cutting apparatus.

According to a first aspect of embodiments of the present application, there is provided a cutting device comprising:

a head frame;

a cutting unit comprising at least three cutting wheels around which a cutting tool may be wound; at least three cutting wheels are arranged on the frame head at intervals, a cutting station is formed between two adjacent cutting wheels, and at least three cutting wheels form at least two cutting stations.

The cutting device as described above, further comprising:

the guide wheel is arranged on the machine head frame and is positioned on one side of the cutting wheel.

The cutting device as described above, further comprising:

the tension mechanism comprises tension wheels, is arranged on the machine head frame and is positioned on one side of the cutting wheels, and the cutting tool is wound between the tension wheels and each cutting wheel and is used for adjusting the tension of the cutting tool.

In the cutting device, the number of the cutting wheels is three at intervals.

The cutting device as described above, the guide wheel and/or the tension wheel being located above the cutting wheel or below the cutting wheel.

In the cutting device described above, the cutting wheels have the same diameter.

In the cutting device described above, the center lines of the cutting wheels are positioned on the same straight line.

In the cutting device as described above, the at least one cutting wheel located between the two edges is moved outwardly at a position in contact with the cutting tool as compared to the cutting wheel located at the edge.

In the cutting device, at least one cutting wheel is correspondingly provided with the driving mechanism, and the driving mechanism is used for driving the corresponding cutting wheel to rotate.

The cutting device as described above, wherein the cutting tool is a cutting wire or saw band.

The cutting device as described above, further comprising: and the spraying assembly is arranged on the machine head frame.

A cutting device as described above, the spray assembly comprising:

the liquid inlet pipe is arranged on the machine head frame; one end of the liquid inlet pipe is connected with the liquid supply pipeline;

the spray pipe is arranged on the machine head frame and is positioned beside the cutting wheel; the spray pipe is communicated with the liquid inlet pipe, and a liquid spraying port is arranged at the end part of the spray pipe, which is close to the cutting tool.

According to a second aspect of embodiments of the present application, there is provided a cutting apparatus comprising: a cutting device as described above.

According to the technical scheme provided by the embodiment of the application, at least three cutting wheels are arranged on the machine head frame, cutting tools are wound on the cutting wheels, and a cutting station is formed between two adjacent cutting wheels and used for cutting a piece to be cut. At least three cutting wheels form at least two stations, so that at least two pieces to be cut can be cut at the same time, the occupied area is small, and the production efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 is a perspective view of a cutting device provided in an embodiment of the present application;

fig. 2 is a front view of a cutting device according to an embodiment of the present disclosure;

FIG. 3 is a top view of a cutting device according to an embodiment of the present disclosure;

FIG. 4 is a left side view of a cutting device provided in an embodiment of the present application;

FIG. 5 is a front view of a tension mechanism in a cutting device according to an embodiment of the present application;

FIG. 6 is a left side view of a tension mechanism in a cutting device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a driving mechanism in a cutting device according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a head frame in a cutting device according to an embodiment of the present disclosure;

FIG. 9 is a bottom perspective view of a cutting device provided in an embodiment of the present application;

fig. 10 is a schematic view of a part of a structure of a spray assembly in a cutting device according to an embodiment of the present application;

fig. 11 is a flowchart of a cutting device for cutting a silicon rod according to an embodiment of the present application.

Reference numerals:

1-a handpiece frame; 11-a tension mechanism mounting hole; 12-cutting unit mounting holes; 13-a liquid inlet pipe mounting part; 14-a shower mounting; 15-supporting frames;

21-a cutting wheel; 22-a cutting motor; a 23-coupling; 24-bearing; 25-bearing seats; 26-a driving shaft;

31-a tension pulley; 32-tension motor; 33-tension swing arms; 34-tension support;

4-cutting lines;

51-a liquid inlet pipe; 52-spraying pipes; 521-a liquid spraying port; 53-adjusting the seam;

61-silicon rod; 62-square bars; 63-edge skin.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application is given with reference to the accompanying drawings, and it is apparent that the described embodiments are only some of the embodiments of the present application and not exhaustive of all the embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

The embodiment provides a cutting device for cutting a workpiece to be cut. The workpiece to be cut may be; a hard and brittle material rod body such as a monocrystalline silicon rod, a polycrystalline silicon rod, a magnetic material rod, a sapphire rod and the like. The cutting device can be applied to a cutting machine or a squaring machine, can be applied to the cutting machine to cut a workpiece to be cut into small blocks, and can be applied to the squaring machine to cut a cylindrical workpiece to be cut into square bars with rectangular cross sections.

In this embodiment, the square bar is obtained by squaring the workpiece to be cut by using an squarer as an example. The workpiece to be cut may be, for example, a single crystal silicon rod, simply referred to as a silicon rod.

The cutting device can be applied to vertical cutting equipment, namely, the silicon rod is vertically arranged, and the cutting device moves up and down to cut; the horizontal type cutting device can also be applied to horizontal type cutting equipment, namely, the silicon rod is horizontally arranged, and the cutting device horizontally moves to cut. The present embodiment is described by taking a vertical type as an example.

As shown in fig. 1, the cutting device provided in this embodiment includes: a head frame 1 and a cutting unit.

Wherein, the machine head frame 1 is a main body structure, and other mechanisms are all arranged on the machine head frame 1. The head frame 1 can move in the feeding direction to cut the silicon rod under the driving force of the feeding driving mechanism. Or the frame of the machine head is fixed in position, and a bearing platform used for bearing the silicon rod on the cutting equipment moves along the feeding direction to cut.

The cutting unit includes at least three cutting wheels 21, and the at least three cutting wheels 21 are disposed at intervals at one side of the head frame 1. The cutting tool is wound on each cutting wheel 21, and a cutting station is formed between two adjacent cutting wheels 21 and is used for cutting a workpiece to be cut. At least three cutting wheels 21 form at least two stations for simultaneously cutting at least two pieces to be cut.

According to the technical scheme provided by the embodiment, at least three cutting wheels are arranged on the machine head frame, cutting tools are wound on the cutting wheels, and a cutting station is formed between two adjacent cutting wheels and is used for cutting a piece to be cut. At least three cutting wheels form at least two stations, so that at least two pieces to be cut can be cut at the same time, the occupied area is small, and the production efficiency is improved.

The cutting tool may be a cutting wire or a cutting saw blade. The cutting line is specifically a diamond wire, and diamond grains are attached to the cutting line. The saw band is cut into a sheet-like structure having a certain width.

Further, the cutting device also comprises a guiding wheel located on one side of the cutting wheel 21, e.g. above, below, left or right of the cutting wheel 21. The cutting tools are wound around guide wheels for guiding or reversing the movement of the cutting tools and each cutting wheel 21.

Another scheme is as follows: the cutting device further comprises a tension mechanism, the tension mechanism comprises a tension wheel 31, the tension wheel 31 and the cutting wheel 21 are arranged on the same side of the machine head frame 1, and the tension wheel 31 can be positioned above, below, left or right of the cutting wheel 21. In this embodiment, the tension wheel 31 is located above the cutting wheel 21. The cutting tools are wound around the tension roller 31 and each cutting roller 21, and the tension roller 31 is used for adjusting the tension of the cutting tools. The tension mechanism is used for adjusting the tension of the cutting tool, so that the tension of the cutting tool is in a better state, the damage probability of the cutting tool is reduced, and the cutting efficiency and the cutting quality can be improved.

In yet another aspect, the cutting device includes a guide wheel, a tension mechanism, and a cutting wheel 21, the cutting tool is wound around the guide wheel, the tension mechanism, and the cutting wheel 21, wherein the tension mechanism is used for adjusting the tension of the cutting tool, and the guide wheel is used for guiding the cutting tool.

The number of the guide wheels and the tension wheels can be set according to the workpiece to be cut, the cutting tool and the cutting index.

The embodiment provides a specific scheme, as shown in fig. 1 and fig. 2, the nose frame 1 is of a substantially rectangular parallelepiped structure, and the cutting wheel and the tension wheel are both disposed on the same side of the nose frame 1. Three cutting wheels 21 are used, which are arranged in sequence along the length direction of the head frame 1. The cutting line between the middle cutting wheel 21 and the left cutting wheel 21 is used for cutting one silicon rod, and the cutting line between the middle cutting wheel 21 and the right cutting wheel 21 is used for cutting the other silicon rod.

The cutting line starts from the tension wheel 31, winds out from the left side of the tension wheel 31, winds out from the upper left side Rao Jin of the left cutting wheel 21 to the right lower side, winds in from the lower right side of the right cutting wheel 21 through the bottom of the middle cutting wheel 21, and winds back to the tension wheel 31 to form a loop. The cutting wheel 21 performs cutting in a unidirectional counterclockwise rotation, a unidirectional clockwise rotation, or a bidirectional alternate rotation.

The tension pulley 31 is positioned above the middle cutting pulley 21, and the cutting line is formed in an isosceles triangle, so that the cutting line tension on the left and right sides of the tension pulley 31 is maintained uniform. The distance between the middle cutting wheel 21 and the left cutting wheel 21 is equal to the distance between the middle cutting wheel 21 and the right cutting wheel 21. Alternatively, the tension pulley 31 and the cutting line 21 may be arranged in a rectangular shape or other shapes depending on the number and positions of the tension pulley 31 and the cutting line 21.

A specific scheme: each cutting wheel 21 has the same diameter. The cutting wheel 21 with the same structure and size can be adopted, which is beneficial to improving the consistency of the cutting progress and quality of the two stations.

One embodiment is: at least one cutting wheel 21 located between the two sides is moved outwards at a position of contact with the cutting tool compared to the cutting wheel 21 located at the sides. For example, in the structure shown in fig. 2, the bottom end of the cutting wheel 21 located in the middle is lower than the other two cutting wheels 21, specifically, when the diameters of the three cutting wheels 21 are equal, the cutting wheel 21 located in the middle is lower in height; or when the center lines of the three cutting wheels 21 are the same in height, the cutting wheel 21 located in the middle is larger in diameter.

In addition to the solution shown in fig. 2, three cutting wheels 21 may also be located above the head frame, the top end of the cutting wheel 21 located in the middle being higher than the edge cutting wheel 21; alternatively, the three cutting wheels 21 are positioned at the left side of the head frame, and the left edge of the cutting wheel 21 positioned in the middle exceeds the edge cutting wheel 21 to the left; alternatively, three cutting wheels 21 are located on the right side of the head frame, and the right edge of the cutting wheel 21 located in the middle is beyond the edge cutting wheel 21 to the right.

Or, the heights of the cutting wheels 21 are the same, and the diameters of the cutting wheels 21 are the same, so that the cutting line at the bottom of the cutting wheel 21 is kept horizontal, and further, the stress of the cutting line is balanced in the cutting process of the silicon rod at two stations, the cutting line is not easy to break, and the stability of the cutting process is higher.

The height difference between the cutting wheel 21 located in the middle and the other two cutting wheels 21 can be set according to the actual cutting parameters, the characteristics of the cutting line itself, etc., so as to achieve the effects of weakening the slip of the cutting wheel, reducing the abrasion of the cutting wheel, and prolonging the service life of the cutting wheel.

As shown in fig. 3 and 4, each cutting wheel 21 is in the same plane as the tension wheel 31. The tension pulley 31 and the cutting pulley 21 are provided with wire grooves on the circumferential surfaces thereof, and the cutting wires are positioned in the wire grooves. Specifically, the central planes of the wire grooves of the tension wheel 31 and the cutting wheel 21 are all in the same plane, and further the end surfaces of the tension wheel 31 and the cutting wheel 21 can be coplanar.

In practice, at least one cutting wheel 21 is provided with a drive mechanism which drives the cutting wheel 21 in rotation. The remaining cutting wheels 21 are driven. Or, each cutting wheel 21 is correspondingly provided with a driving mechanism, and the driving mechanism is used for driving the corresponding cutting wheel 21 to rotate, so that each cutting wheel 21 has power to rotate, and has larger traction force and cutting power, thereby being beneficial to improving the cutting efficiency. The three sets of drive mechanisms provide the same power to maintain the speed of movement of the string balanced. And the abrasion condition of the three cutting wheels 21 is almost good for prolonging the service life of the cutting wheels 21.

The present embodiment also provides an implementation of the tension mechanism: as shown in fig. 5 and 6, the tension mechanism includes: tension pulley 21, tension motor 32 and tension swing arm 33. The tension motor 32 is disposed on the other side of the head frame 1, and an output end of the tension motor 32 is connected to the tension swing arm 33, so as to drive the tension swing arm 33 to swing. The tension pulley 21 is provided at an end of the tension swing arm 33, and tightens the cutting line to increase the tension or loosens the cutting line to decrease the tension as the tension swing arm 33 moves. The tension motor 32 is embodied as a servo motor.

As shown in fig. 7, the driving mechanism includes: the cutting motor 22, the coupler 23, the bearing 24, the bearing seat 25 and the driving shaft 26. The cutting motor 22 is connected with the driving shaft 26 through a coupler 23, and the bearing 24 is arranged in the bearing seat 25 and is positioned between the driving shaft 26 and the bearing seat 25. The end of the drive shaft 26 is connected to the cutting wheel 21. The cutting motor 22 is embodied as a servo motor.

As shown in fig. 8, the head frame 1 has an integral structure, and has high rigidity and stability. The head frame 1 is provided with a tension mechanism mounting hole 11 and a cutting unit mounting hole 12. The tension motor 32 is connected with the tension swing arm 33 through the tension support 34 passing through the tension mechanism mounting hole 11. The bearing housing 25 is penetrated through the cutting unit mounting hole 12. Limiting bars are further arranged on two sides of the tension swing arm 33 and used for limiting the swing angle of the tension swing arm 33 and avoiding cutting lines from being stretched out due to overlarge swing drawings. For example, the upper limit of the limiting angle is 15 degrees, and the lower limit is 7 degrees.

Further, the cutting device also adopts a spraying component which is arranged on the machine head frame 1, the spraying component is used for spraying cutting fluid to the cutting lines between the cutting wheels 21, the cutting lines are cooled on one hand, the cutting surface quality of the silicon rod is prevented from being influenced by cutting in a high-temperature state, the silicon powder attached to the surface of the cutting lines is also cleaned off on the other hand, the abrasion to the cutting surface of the silicon rod is reduced, and the cutting surface quality is further improved.

One embodiment is: as shown in fig. 1 and 2, the spray assembly includes: a liquid inlet pipe 51 and a spray pipe 52. The liquid inlet pipe 51 is disposed on the head frame 1, and extends along the length direction of the head frame 1. Specifically, the head frame 1 is provided with a liquid inlet pipe mounting portion 13, and the liquid inlet pipe 51 is fixed to the liquid inlet pipe mounting portion 13 by a fixing member. One end of the liquid inlet pipe 51 is connected to the liquid supply line.

The shower pipe 52 is provided on the head frame 1 and is located beside the cutter wheel 21. Specifically, the head frame 1 is provided with a shower pipe mounting portion 14, and the shower pipe 52 is fixed to the shower pipe mounting portion 14 by a fixing member. As shown in fig. 10, the shower pipe 52 communicates with the liquid inlet pipe 51, and a liquid spraying port 521 is provided at an end of the shower pipe 52 close to the cutting line 4, and the cutting liquid left from the liquid spraying port 521 flows toward the cutting line 4.

The fixing member is a rectangular block provided with two through holes for the shower pipe 52 to pass through. And an adjusting slit 53 is formed at the top of the fixing member to divide the top of the fixing member into two parts. The two parts are provided with coaxial holes, and a threaded fastener is screwed into the coaxial holes, so that the distance between the two parts can be shortened when the threaded fastener is screwed, and the spray pipe 52 is clamped.

Four shower mounting sections 14 are shown in fig. 8, four sets of shower pipes 52, each set including two shower pipes 52, may be mounted. The shower mounting portion 14 is adjacent to the cutting unit mounting hole 12. Two shower mounting portions 14 are provided on each side of the central cutting unit mounting hole 12, that is, on each side of the central cutting wheel 21, a set of shower pipes 52 are provided. The right side of the left cutting wheel 21 is provided with a group of spray pipes 52, and the left side of the right cutting wheel 21 is provided with a group of spray pipes 52, so that cutting lines between two cutting wheels are sprayed with cutting fluid through the two groups of spray pipes 52, and the cooling and cleaning effects are improved.

As shown in fig. 2, 4 and 9, a supporting frame 15 is further arranged at the bottom of the head frame 1 and is used for being connected with a feeding mechanism. The feeding mechanism drives the machine head frame 1 to move up and down through the supporting frame 15 so as to cut the silicon rod. The two supporting frames 15 are uniformly distributed at the bottom of the head frame 1, so that the stability of the head frame 1 can be improved. Alternatively, the supporting frame 15 may be provided on the side or top surface of the head frame 1.

As shown in fig. 11, the above-mentioned cutting device provided by the present embodiment can cut two silicon rods at the same time. The two silicon rods 61 are cut once by a cutting device, and a piece of the side skin 63 is cut off. The silicon rod 61 or the cutting device is then translated, and the silicon rod 61 is cut again, cutting off the other piece of the edge skin 63. Then the two silicon rods are rotated by 90 degrees, the same operation is adopted to cut the silicon rods twice, and then two pieces of side skins 63 are cut off to obtain a square rod 62 with a rectangular cross section, and the square is completed.

Alternatively, two cutting devices are arranged oppositely, and two silicon rods 61 are cut synchronously through cutting lines on the two cutting devices, so that two side skins 63 can be cut off at a time. Then the silicon rod is rotated by 90 degrees, the other two side skins 63 are cut off, and the square cutting is completed by two times of cutting.

The embodiment also provides a cutting device, which comprises the cutting device provided by any one of the above. The cutting device provided in this embodiment has the same technical effects as the cutting device described above.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A cutting device, comprising:

a head frame;

a cutting unit comprising at least three cutting wheels around which a cutting tool may be wound; at least three cutting wheels are arranged on the machine head frame at intervals, a cutting station is formed between two adjacent cutting wheels, and at least three cutting wheels form at least two cutting stations;

2. The cutting device of claim 1, further comprising:

3. The cutting device of claim 1, wherein the cutting wheels are three spaced apart.

4. Cutting device according to claim 2, characterized in that the guide wheel and/or tension wheel is located above the cutting wheel or below the cutting wheel.

5. A cutting device according to claim 3, wherein the cutting wheels have the same diameter.

6. The cutting device of claim 1, wherein the center line of rotation of each cutting wheel is on the same plane.

7. The cutting device of claim 1, wherein at least one cutting wheel between the two edges is moved outwardly from a position of contact with the cutting tool as compared to the cutting wheel at the edge.

8. Cutting device according to claim 1, characterized in that at least one cutting wheel is provided with a driving mechanism for driving the corresponding cutting wheel in rotation.

9. The cutting device of claim 1, wherein the cutting tool is a cutting wire or saw band.

10. The cutting device of any one of claims 1-9, further comprising: and the spraying assembly is arranged on the machine head frame.

11. The cutting apparatus of claim 10, wherein the spray assembly comprises:

12. A cutting apparatus, comprising: a cutting device as claimed in any one of claims 1 to 11.