CN213739777U

CN213739777U - Monocrystalline silicon crucible shedder

Info

Publication number: CN213739777U
Application number: CN202022277057.XU
Authority: CN
Inventors: 尹长浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-07-20
Anticipated expiration: 2030-10-14

Abstract

A single crystal silicon crucible demoulding device comprises a frame, a saw blade used for cutting or slotting the inner wall of a quartz crucible, a wedge-shaped sheet used for propping and cracking the quartz crucible, a supporting device supporting the saw blade and the wedge-shaped sheet to rotate and lift mutually, and a counterweight device for tightly pushing the crucible against a driving wheel. The device can replace manual knocking to realize non-knocking demoulding, realizes smooth separation of the carbon-carbon crucible and the quartz crucible, greatly reduces the labor intensity of workers on one hand, has extremely small vibration on the carbon-carbon crucible in the operation process, and greatly reduces the damage probability of the carbon-carbon crucible, thereby obviously reducing the use cost of the carbon-carbon crucible; secondly, the invention can operate the crucible with higher temperature, greatly shorten the waiting time of the crucible and improve the cycle efficiency of the carbon-carbon crucible.

Description

Monocrystalline silicon crucible shedder

Technical Field

The utility model relates to a crystalline silicon solar cell production technical field, especially a single crystal crucible device.

Background

After the silicon single crystal is pulled, the quartz crucible needs to be taken out of the carbon-carbon crucible. The quartz crucible is soft at high temperature, the shape of the quartz crucible slightly changes under the oppression of the self weight and the weight of the internal silicon melt, and the quartz crucible fixed in the middle area of the carbon-carbon crucible expands, so that the quartz crucible is clamped in the carbon-carbon crucible and is difficult to take out after cooling. At present, the conventional treatment method is to manually beat the quartz crucible to crack the quartz crucible inside the carbon-carbon crucible, and finally realize the purpose of separating the quartz crucible from the carbon-carbon crucible by continuously removing cracked quartz crucible pieces. The whole operation process is low in efficiency and high in labor intensity, and the carbon-carbon crucible is easily damaged, so that automatic equipment is urgently needed to solve the problem.

The single crystal crucible demolding equipment is a smooth demolding device developed for solving the problem that a quartz crucible is difficult to take out of a carbon-carbon crucible in the single crystal pulling production process. Smooth demolding means that the quartz crucible is separated from the carbon-carbon crucible and the carbon-carbon crucible is prevented from being subjected to strong mechanical impact as much as possible.

SUMMERY OF THE UTILITY MODEL

In the process of pulling the crystal at high temperature, the quartz crucible is softened, the quartz crucible and the carbon-carbon crucible are tightly combined, the contact surface of the quartz crucible and the carbon-carbon crucible has rough texture, the friction force between the quartz crucible and the carbon-carbon crucible is increased, and the quartz crucible and the carbon-carbon crucible are difficult to separate on the premise of not changing the shapes of the quartz crucible and the carbon-carbon crucible. If the carbon-carbon crucible is required not to be damaged in the separation process, the quartz crucible needs to be damaged at the lowest cost. The quartz crucible cutting and subsequent separation operation are integrated into the same equipment.

The utility model provides a following technical scheme:

a single crystal silicon crucible demoulding device comprises a frame, a saw blade used for cutting or slotting the inner wall of a quartz crucible, a wedge-shaped sheet used for propping and cracking the quartz crucible, a supporting device used for supporting the saw blade and the wedge-shaped sheet to rotate and lift mutually, and a counterweight device used for tightly pushing the crucible against a driving wheel.

Furthermore, a rotating tray is installed on the rack and placed on the rail, the rotating tray bears the crucible and supports the crucible to rotate, and meanwhile, the rotating tray can support the crucible to move horizontally along the rail, so that the crucible can rotate and move horizontally.

Furthermore, the wedge-shaped sheet is of a circular sheet structure with a thin part and a thick part; in the rotating process of the wedge-shaped piece, the thin part is conveniently inserted into a gap or a cutting groove cut on the inner wall of the quartz crucible by the saw blade, and the thick part is used for opening the crack or opening the cutting groove.

Furthermore, the saw blade and the wedge-shaped piece are arranged on the same rotary supporting arm, the supporting arm rotates to realize the mutual rotation of the saw blade and the wedge-shaped piece to achieve the effect of alternately contacting with the inner wall of the crucible, and the supporting arm can move up and down through a track or a telescopic rod.

Furthermore, the gravity borne by the balance weight is transmitted to the tightening wheel through the pulley and the steel wire, and the crucible is tightly pressed on the driving wheel by the tightening wheel.

The utility model discloses the beneficial effect who reaches is:

(1) the vibration of the carbon-carbon crucible is extremely small in the operation process, so that the use cost of the carbon-carbon crucible is greatly reduced;

(2) the invention can greatly reduce the labor intensity of workers;

(3) the invention can operate the crucible with higher temperature, greatly shortens the waiting time of the crucible and improves the cycle efficiency of the carbon-carbon crucible.

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 embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in figure 1, the single crystal silicon crucible demoulding device comprises a frame 1, a saw blade 5 for cutting or slotting the inner wall of a quartz crucible, a wedge-shaped sheet 6 for propping up the quartz crucible, a supporting arm 9 for supporting the saw blade 5 and the wedge-shaped sheet 6 to rotate and lift mutually, and a counterweight device 7 for pushing the crucible tightly against a driving wheel.

Install rotatory tray 3 on the frame 1, rotatory tray 3 is placed on the track, and rotatory tray 3 bears crucible 4 and supports the crucible and do rotary motion, and simultaneously, rotatory tray 3 can support crucible 4 and translate along the track to realize the crucible rotation, translation combination action.

The saw blade 5 and the wedge-shaped piece 6 are arranged on the same rotary supporting arm 9, the supporting arm 9 rotates to realize the mutual rotation of the saw blade 5 and the wedge-shaped piece 6 to achieve the effect of alternately contacting with the inner wall of the crucible 4, and the supporting arm 9 can move up and down through a track or a telescopic rod.

The gravity borne by the balance weight 7 is transmitted to the tightening wheel 2 through the pulley and the steel wire, and the crucible is tightly pressed on the driving wheel 8 by the tightening wheel 2.

Firstly, the crucible 4 is placed on the sliding rotary tray 3 in an inverted buckle manner, the outer layer of the crucible 4 is a carbon crucible, and the inner layer of the crucible is a quartz crucible. The crucible 4 is tightly attached to the driving wheel 8 under the action of the jacking wheel 2. The driving wheel 8 can drive the crucible 4 to rotate for a certain angle.

The inner wall of the crucible 4 is cut into cracks or grooves with specific depth at different angles, then the cutting saw blade 5 is changed into wedge-shaped pieces 6 to be inserted into the cracks or grooves, and the cracks or grooves are further enlarged to crack the quartz crucible and are separated from the inner wall of the carbon crucible.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A demoulding device for a monocrystalline silicon crucible is characterized by comprising a frame, a saw blade for cutting or slotting the inner wall of the quartz crucible, a wedge-shaped sheet for propping up the quartz crucible, a supporting device for supporting the mutual rotation and lifting of the saw blade and the wedge-shaped sheet, and a counterweight device for tightly pushing the crucible against a driving wheel;

the rotary tray is arranged on the track, bears the crucible and supports the crucible to do rotary motion, and meanwhile, the rotary tray can support the crucible to translate along the track, so that the combined action of rotation and translation of the crucible is realized;

the saw blade and the wedge-shaped piece are arranged on the same rotary supporting arm, the supporting arm realizes mutual rotation of the saw blade and the wedge-shaped piece through rotation to achieve the effect of alternately contacting with the inner wall of the crucible, and the supporting arm can move up and down through a track or a telescopic rod;

the gravity borne by the balance weight is transmitted to the pushing wheel through the pulley and the steel wire, and the crucible is pushed against the driving wheel by the pushing wheel.