CN113414442B

CN113414442B - Cutting and cutting device for polycrystalline silicon cast ingot

Info

Publication number: CN113414442B
Application number: CN202110813633.4A
Authority: CN
Inventors: 张帅; 朱常任; 魏国
Original assignee: Jiangsu Tuozheng Maoyuan New Energy Co ltd
Current assignee: Jiangsu Tuozheng Maoyuan New Energy Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2023-07-07
Anticipated expiration: 2041-07-19
Also published as: CN113414442A

Abstract

The invention discloses a cutting and cutoff device for polycrystalline silicon ingots, which comprises a lifting assembly, a displacement assembly and a cutting assembly, wherein the displacement assembly is arranged on the lifting assembly; the invention provides a cutting and cutting device for a polycrystalline silicon ingot which is automatically progressive and stable in cutting, and belongs to the field of mechanical cutting.

Description

Cutting and cutting device for polycrystalline silicon cast ingot

Technical Field

The invention belongs to the field of mechanical cutting, and particularly relates to a cutting and chopping device for polycrystalline silicon cast ingots.

Background

In the electronic information devices of semiconductor devices such as modern automatic control, information processing, photoelectric conversion and the like, monocrystalline silicon is a base material for manufacturing the semiconductor devices, polycrystalline silicon is a direct raw material for producing the monocrystalline silicon, polycrystalline silicon cast ingots are formed by condensing molten elemental silicon in a special die, in order to facilitate the processing of the polycrystalline silicon into the monocrystalline silicon, technicians usually cut the polycrystalline silicon cast ingots into pieces by using a professional cutting machine, but the texture of the polycrystalline silicon is hard, cutting operation is performed by using a single-piece cutting blade type cutting machine, when the situation that the polycrystalline silicon cast ingots are unstable in clamping occurs, a cutting blade rotating at a high speed can deflect, if the progressive speed of the polycrystalline silicon cast ingots is too high, the cutting blade is also greatly worn, the normal operation of the cutting machine is influenced, and even the health and the safety of equipment and human bodies are endangered in severe cases.

Disclosure of Invention

Aiming at the situation, in order to make up for the existing defects, the invention provides a cutting and cutting device for automatically progressive high-stability cutting of polycrystalline silicon ingots.

The invention provides the following technical scheme: the invention relates to a cutting and cutoff device for a polycrystalline silicon ingot, which comprises a lifting component, a displacement component and a cutting component, wherein the displacement component is arranged on the lifting component; the lifting assembly comprises a supporting shell, lifting screws, lifting driving motors and lifting plates, wherein the lifting driving motors are arranged in the supporting shell, one ends of the lifting screws are rotationally arranged on the bottom wall of the supporting shell, four groups of lifting screws are symmetrically arranged along the supporting bottom shell in pairs, the lifting screws are connected through belts, one group of lifting screws are connected with the output shafts of the lifting driving motors, and four corners of the lifting plates are arranged on the four groups of lifting screws through threaded connection.

Further, the displacement subassembly includes drive gear, displacement rack, workstation and displacement driving motor, be equipped with the drive chamber in the lifter plate, the drive intracavity of lifter plate is located to the displacement driving motor, the lifter plate upper surface is located in the workstation slip, the workstation is equipped with the cutting gap along the axis, the workstation lower surface is located to the displacement rack, driving motor power take off axle head is located to drive gear, drive gear and displacement rack meshing, drive gear is sector gear.

Further, the workstation upper surface is equipped with fixture along the cutting gap, fixture includes fly leaf, fixed plate and hob, the workstation upper surface is located to the fixed plate, the workstation upper surface is equipped with spacing spout, the fly leaf slides and locates in the spacing spout, threaded hole has been seted up on the fly leaf, the hob runs through the fly leaf through the screw hole and rotates locates on the fixed plate, just fixture is the symmetry setting about the cutting gap.

Further, the cutting assembly comprises a protective shell, a cutting blade, a blade driving motor, a driving gear, a driven gear, a lifting sliding block and a lifting sliding groove, wherein one end of the protective shell is arranged on the supporting shell, two groups of lifting sliding grooves are formed in the lifting sliding groove, two groups of lifting sliding grooves are correspondingly formed in two opposite inner side walls of the protective shell, rollers are arranged at two ends of the lifting sliding block, the lifting sliding block is slidably arranged in the two groups of lifting sliding grooves through the rollers, a sliding groove is formed in the lifting sliding block, the driving gear is rotatably arranged on the inner wall of the protective shell, the driving gear is connected with a driving gear belt, the driven gear is rotatably arranged on the inner wall of the protective shell, two groups of driven gears are arranged, the driven gears are meshed with the driving gear, protrusions are arranged on the driven gear, the protrusions are clamped and slidably arranged in the sliding groove, the blade driving motor is arranged on the lifting sliding block, and the cutting blade is rotatably arranged on the blade driving motor.

Further, the cutting assembly is provided with two groups, the two groups of cutting assemblies are respectively an upper cutting assembly and a lower cutting assembly, the two groups of cutting assemblies are symmetrically arranged on the upper surface of the workbench, the lower cutting assembly is provided with a positioning rod, the lifting sliding block of the upper cutting assembly is provided with a sleeve, and the sleeve is slidably arranged on the positioning rod.

Further, the lower surface of the lower lifting slide block is provided with a supporting spring, the other end of the supporting spring is connected with the bottom wall of the protective shell, and when the lifting slide block moves to the middle position of the driving gear and the driven gear, the supporting spring is in a balanced state.

Further, a supporting plate is arranged on the side wall of the protective shell, a lifting groove is arranged in the supporting plate, a lifting spring is arranged in the lifting groove, a tensioning roller is slidably arranged on the upper portion of the lifting groove, a wheel shaft of the tensioning roller is connected with the lifting spring, and the tensioning roller is engaged with the surface of a belt between the driving gear and the driving gear.

The beneficial effects obtained by the invention by adopting the structure are as follows: the cutting and chopping device for the polycrystalline silicon ingot can realize cutting of the polycrystalline silicon ingot while the polycrystalline silicon ingot is progressive, cutter equipment is not easy to damage in the cutting operation process, two groups of blades are matched to jointly cut a single polycrystalline silicon ingot, the cutting efficiency is improved, meanwhile, the cutting stability is also improved, the progressive and cutting actions after the device is started are all automatic, and the labor cost is reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of a cutting and truncating device for polycrystalline silicon ingots;

fig. 2 is a front cross-sectional view of a cutting and truncating device for polycrystalline silicon ingots according to the present invention;

FIG. 3 is a schematic structural view of a displacement assembly of a cutting and truncating device for polycrystalline silicon ingots according to the present invention;

fig. 4 is a schematic structural view of a lifting assembly of a cutting and truncating device for polycrystalline silicon ingot casting according to the present invention;

FIG. 5 is a top view of a lifting assembly of a cutting and truncating device for polycrystalline silicon ingots according to the present invention;

FIG. 6 is an enlarged partial view of portion A of FIG. 5;

fig. 7 is a schematic structural view showing a state that a cutting blade of a cutting assembly of the cutting-off device for polycrystalline silicon ingot casting is far away.

Wherein 1, lifting component, 2, displacement component, 3, cutting component, 4, support casing, 5, lifting screw, 6, lifting drive motor, 7 lifter plate, 8, driving gear, 9, displacement rack, 10, workstation, 11, cutting gap, 12, fixture, 13, fly leaf, 14, fixed plate, 15, screw rod, 16, protective case, 17, cutting blade, 18, blade drive motor, 19, driving gear, 20, driven gear, 21, lifting slide block, 22, lifting slide groove, 23, roller, 24, sliding groove, 25, locating lever, 26, sleeve, 27, support spring, 28, support plate, 29, lifting spring, 30, tensioning roller, 31, protrusion.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 7, the technical scheme adopted by the invention is as follows: the invention relates to a cutting and cutting device for automatically progressive high-stability cutting polycrystalline silicon ingots, which comprises a lifting assembly 1, a displacement assembly 2 and a cutting assembly 3, wherein the displacement assembly 2 is arranged on the lifting assembly 1, the cutting assembly 3 is arranged on the lifting assembly 1, and the upper end of the cutting assembly 3 is positioned above the lifting assembly 1; the lifting assembly 1 comprises a supporting shell 4, lifting screws 5, a lifting driving motor 6 and lifting plates 7, wherein the lifting driving motor 6 is arranged in the supporting shell 4, one end of each lifting screw 5 is rotationally arranged on the bottom wall of the supporting shell 4, the lifting screws 5 are symmetrically arranged in pairs along the supporting bottom shell, the four groups of lifting screws 5 are connected through belts, one group of lifting screws 5 is connected with the output shaft of the lifting driving motor 6, and four corners of each lifting plate 7 are arranged on the four groups of lifting screws 5 through threaded connection.

The displacement assembly 2 comprises a driving gear 8, a displacement rack 9, a workbench 10 and a displacement driving motor, a driving cavity is formed in the lifting plate 7, the displacement driving motor is arranged in the driving cavity of the lifting plate 7, a transverse sliding chute is formed in the upper surface of the workbench 10, the workbench 10 is slidably arranged in the transverse sliding chute, a cutting gap 11 is formed in the workbench 10 along a central axis, the displacement rack 9 is arranged on the lower surface of the workbench 10, the driving gear 8 is arranged at the power output shaft end of the driving motor, the driving gear 8 is meshed with the displacement rack 9, and the driving gear 8 is a sector gear; the upper surface of the workbench 10 is provided with a clamping mechanism 12 along the cutting gap 11, the clamping mechanism 12 comprises a movable plate 13, a fixed plate 14 and a screw rod 15, the fixed plate 14 is arranged on the upper surface of the workbench 10, the upper surface of the workbench 10 is provided with a limiting chute, the movable plate 13 is slidably arranged in the limiting chute, the movable plate 13 is provided with a threaded hole, one end of the screw rod 15 penetrates through the movable plate 13 through the threaded hole to be rotationally arranged on the fixed plate 14, and the clamping mechanism 12 is symmetrically arranged about the cutting gap 11; the cutting assembly 3 comprises a protecting shell 16, a cutting blade 17, a blade driving motor 18, a driving gear 19, driven gears 20, lifting sliding blocks 21 and lifting sliding grooves 22, wherein one end of the protecting shell 16 is arranged on the supporting shell 4, the lifting sliding grooves 22 are provided with two groups, the two groups of lifting sliding grooves 22 are correspondingly arranged on two opposite inner side walls of the protecting shell 16, rollers 23 are arranged at two ends of the lifting sliding blocks 21, the lifting sliding blocks 21 are slidably arranged in the two groups of lifting sliding grooves 22 through the rollers 23, sliding grooves 24 are arranged on the lifting sliding blocks 21, the driving gear 19 is rotatably arranged on the inner wall of the protecting shell 16, the driving gear 19 is connected with a driving gear 8 through a belt, the driven gear 20 is rotatably arranged on the inner wall of the protecting shell 16, the driven gears 20 are provided with two groups of driven gears 20 and are meshed with the driving gear 19, the two groups of driven gears 20 are provided with protrusions 31 which are clamped and slidably arranged in the sliding grooves 24, the blade driving motor 18 is arranged on the lifting sliding blocks 21, and the cutting blade 17 is rotatably arranged on the blade driving motor 18; the cutting assembly 3 is provided with two groups, the two groups of cutting assemblies 3 are respectively an upper cutting assembly 3 and a lower cutting assembly 3, the two groups of cutting assemblies 3 are symmetrically arranged on the upper surface of the workbench 10, the lower cutting assembly 3 is provided with a positioning rod 25, the lifting slide block 21 of the upper cutting assembly 3 is provided with a sleeve 26, and the sleeve 26 is arranged on the positioning rod 25 in a sliding manner; the lower surface of the lower lifting slide block 21 is provided with a supporting spring 27, the other end of the supporting spring 27 is connected with the bottom wall of the protective shell 16, and when the lifting slide block 21 moves to the middle position of the driving gear 19 and the driven gear 20, the supporting spring 27 is in a balanced state; the side wall of the protective shell 16 is provided with a supporting plate 28, the supporting plate 28 is provided with a lifting groove, a lifting spring 29 is arranged in the lifting groove, the upper part of the lifting groove is slidably provided with a tensioning roller 30, a wheel shaft of the tensioning roller 30 is connected with the lifting spring 29, and the upper surface of the tensioning roller 30 is engaged with the surface of the belt between the driving gear 19 and the driving gear 8.

When the polycrystalline silicon ingot cutting machine is specifically used, a professional places a polycrystalline silicon ingot to be cut between the movable plate 13 and the fixed plate 14, the spiral rod 15 is rotated, the spiral rod 15 drives the movable plate 13 to slide along the limiting sliding groove and approach to the fixed plate 14, the fixed plate 14 and the movable plate 13 work together to clamp the polycrystalline silicon ingot, the polycrystalline silicon ingot is firmly clamped on the clamping mechanism 12, the lifting driving motor 6 is started, the lifting driving motor 6 drives one group of lifting screws 5 to rotate, one group of lifting screws 5 drives the other three groups of lifting screws 5 to rotate through a belt, the four groups of lifting screws 5 jointly rotate to drive the lifting plate 7 to ascend or descend, the transverse midline of the polycrystalline silicon ingot is regulated to be approximately positioned at the tangential position of the two groups of cutting blades 17, the blade driving motor 18 is started, the cutting blades 17 are started to rotate at a high speed, then the displacement driving motor drives the tooth-space driving gear 8 at the shaft end to rotate, and when the driving gear 8 is meshed with the displacement rack 9, the driving motor drives the workbench 10 to slide along the sliding groove of the lifting plate 7, so that the polycrystalline silicon ingot is progressively moved; when the driving gear 8 rotates, the driving gear 8 drives the driving gear 19 to rotate through a belt, the driving gear 19 is meshed with the driven gear 20, the driving gear 19 drives the driven gear 20 to rotate, the driven gear 20 drives the protrusion 31 on the driving gear 19 to rotate, the protrusion 31 slides along the sliding groove 24, meanwhile, the protrusion 31 drives the lifting slide block 21 to ascend or descend along the lifting slide groove 22, and the lifting slide block 21 drives the blade driving motor 18 to ascend or descend, so that two groups of cutting blades 17 are close to or far away from each other; in the process of rotating the driving gear 8, when the teeth of the driving gear 8 are meshed with the displacement rack 9, namely, the workbench 10 moves forward and moves transversely, the two groups of cutting blades 17 start to move away from each other and do not deeply cut the polycrystalline silicon ingot, and when the teeth of the driving gear 8 are not meshed with the displacement rack 9 any more, namely, the workbench 10 stops moving forward, the two groups of cutting blades 17 start to move close to each other, so that the polycrystalline silicon ingot is cut.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cutting of polycrystalline silicon ingot casting cuts device which characterized in that: the device comprises a lifting assembly, a displacement assembly and a cutting assembly, wherein the displacement assembly is arranged on the lifting assembly, the cutting assembly is arranged on the lifting assembly, and the upper end of the cutting assembly is positioned above the lifting assembly; the lifting assembly comprises a supporting shell, lifting screws, a lifting driving motor and lifting plates, wherein the lifting driving motor is arranged in the supporting shell, one ends of the lifting screws are rotationally arranged on the bottom wall of the supporting shell, four groups of lifting screws are symmetrically arranged along the supporting bottom shell in pairs, the four groups of lifting screws are connected through belts, one group of lifting screws is connected with an output shaft of the lifting driving motor, and four corners of the lifting plates are arranged on the four groups of lifting screws in a threaded connection manner;

the displacement assembly comprises a driving gear, a displacement rack, a workbench and a displacement driving motor, wherein a driving cavity is formed in the lifting plate, the displacement driving motor is arranged in the driving cavity of the lifting plate, the workbench is slidably arranged on the upper surface of the lifting plate, a cutting gap is formed along the central axis of the workbench, the displacement rack is arranged on the lower surface of the workbench, the driving gear is arranged at the power output shaft end of the driving motor, the driving gear is meshed with the displacement rack, and the driving gear is a sector gear;

the cutting assembly comprises a protective shell, a cutting blade, a blade driving motor, a driving gear, a driven gear, a lifting sliding block and a lifting sliding groove, wherein one end of the protective shell is arranged on a supporting shell, two groups of lifting sliding grooves are formed in the two opposite inner side walls of the protective shell, two groups of lifting sliding grooves are correspondingly formed in the two inner side walls of the protective shell, rollers are arranged at two ends of the lifting sliding block, the lifting sliding block is slidably arranged in the two groups of lifting sliding grooves through the rollers, a sliding groove is formed in the lifting sliding block, the driving gear is rotatably arranged on the inner wall of the protective shell, the driving gear is connected with a driving gear belt, the driven gear is rotatably arranged on the inner wall of the protective shell, two groups of driven gears are arranged, the driven gears are meshed with the driving gear, protrusions are arranged on the driven gear, the protrusions are slidably arranged in the sliding grooves in a clamping mode, the blade driving motor is arranged on the lifting sliding block, and the cutting blade is rotatably arranged on the blade driving motor.

The cutting assembly is provided with two groups, the two groups of cutting assemblies are respectively an upper cutting assembly and a lower cutting assembly, the two groups of cutting assemblies are symmetrically arranged on the upper surface of the workbench, the lower cutting assembly is provided with a positioning rod, the lifting sliding block of the upper cutting assembly is provided with a sleeve, and the sleeve is slidably arranged on the positioning rod.

2. The cutting and chopping device for polycrystalline silicon ingots according to claim 1, wherein: the utility model discloses a cutting machine, including workstation upper surface, cutting gap is followed to the workstation upper surface and is equipped with fixture, fixture includes fly leaf, fixed plate and hob, the workstation upper surface is located to the fixed plate, the workstation upper surface is equipped with spacing spout, the fly leaf slides and locates in the spacing spout, threaded hole has been seted up on the fly leaf, the hob runs through the fly leaf through the threaded hole and rotates locates on the fixed plate, just fixture is the symmetry setting about cutting gap.

3. The cutting and chopping device for polycrystalline silicon ingots according to claim 2, wherein: the lifting sliding block lower surface of lower cutting assembly is equipped with supporting spring, the supporting spring other end is connected with the protective case diapire.

4. A cutting and chopping device for polycrystalline silicon ingots according to claim 3, wherein: the support plate is arranged on the side wall of the protective shell, the lifting groove is arranged in the support plate, the lifting spring is arranged in the lifting groove, the tensioning roller is arranged on the upper portion of the lifting groove in a sliding mode, the wheel shaft of the tensioning roller is connected with the lifting spring, and the tensioning roller is engaged with the surface of the belt between the driving gear and the driving gear.