Full-automatic hooking and unhooking mechanism for feeding of single crystal furnace

Abstract

The utility model discloses a full-automatic hooking and unhooking mechanism for feeding of a single crystal furnace, which comprises a feeding barrel and an auxiliary chamber heavy hammer body, a feeding barrel center rod, a conical connector and an inverted conical unhooking sliding sleeve are arranged on the feeding barrel, and hooks hooked at the bottom of the conical connector are uniformly distributed on the lower portion of the auxiliary chamber heavy hammer body. The lower part of the side wall of one side, close to the conical connector, of the hook is a conical surface; when materials are hung, the hanging hook descends to be in contact with the upper end of the conical connector, the hanging claw is driven to automatically open through conical surface contact, the hanging hook continuously descends to penetrate through the side wall of the conical connector, the hanging hook is recycled under the action of gravity so as to be hung at the bottom of the conical connector, and the hanging hook ascends after hanging the materials to complete charging and barrel taking. The hook descends to enable the feeding barrel to reach the bottom, the hook continuously descends to the position of the inverted-cone-shaped unhooking sliding sleeve, the hook drives the inverted-cone-shaped unhooking sliding sleeve to move upwards, the hook is separated from the conical face of the inverted-cone-shaped unhooking sliding sleeve and the bottom of the conical connector, and the effects of feeding and barrel taking are achieved through the stroke of the hook.

Description

Technical Field

[0001] The utility model belongs to the technical field of single crystal furnace production accessories, and particularly relates to a full-automatic hook-and-unhook mechanism for charging a single crystal furnace. Background Art

[0002] A single crystal furnace is a device that uses a graphite heater to melt polycrystalline materials such as polysilicon in an inert gas (mainly nitrogen and helium) environment and grows single crystals without dislocation using the Czochralski method. The single crystal furnace mainly includes a furnace body, an electrical control cabinet, a heater, a power cabinet, a main vacuum pump, a sub-chamber vacuum pump, vacuum pipes, a hydraulic system, an argon system, and a cooling water system.

[0003] At present, in the production process of single crystal furnace, especially in the charging process, it is necessary to hang and take out the charging barrel. Currently, the feeder is manually hung on the wall-mounted heavy hammer hook, and then manually removed after the charging is completed. This process requires the operator to operate from a high place, which not only increases the risk of operation, but also increases the operation time and has low efficiency.

[0004] Therefore, how to realize automatic charging of single crystal furnaces during high-altitude operation has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The utility model provides a fully automatic hooking and unhooking mechanism for feeding a single crystal furnace. The fully automatic hooking and unhooking mechanism for feeding a single crystal furnace is provided with a conical connector, a hook and an inverted conical unhooking sleeve. When hanging materials, the hook is lowered to contact with the upper end of the conical connector, and the hook claw is automatically opened through the contact of the conical surface. The hook continues to descend and passes through the side wall of the conical connector. The hook is recovered under the action of gravity and is hung on the bottom of the conical connector. After the hook is hung, the loading is completed. When taking a barrel, the hook descends to make the feeding barrel to the bottom, and the hook continues to descend to the inverted conical unhooking sleeve. The inverted conical unhooking sleeve squeezes the side wall of the hook so that the hook is opened and hung on the conical surface of the inverted conical unhooking sleeve. Then the hook drives the inverted conical unhooking sleeve to move upward, so that the hook is separated from the conical surface of the inverted conical unhooking sleeve and the bottom of the conical connector, and the effect of feeding and taking barrels is achieved by the hook stroke.

[0006] To solve the above technical problems, a fully automatic hook hanging and disengaging mechanism for single crystal furnace feeding of the present utility model includes a feeding bucket and a secondary chamber weight body for driving the feeding bucket to lift and lower. A central rod of the feeding bucket is provided on the feeding bucket, and a conical connector is fixedly provided at the top of the central rod of the feeding bucket. A conical disengaging sliding sleeve for sliding up and down is sleeved on the central rod of the feeding bucket near the conical connector. A connecting channel for accommodating the conical connector to pass through is provided in the secondary chamber weight body. Hooks for hanging on the bottom of the conical connector are evenly distributed around the connecting channel at the lower part of the secondary chamber weight body. The lower part of the side wall of the hook near the conical connector is provided with a conical surface for abutting against the conical connector and the conical disengaging sliding sleeve to open the hook.

[0007] Further, a hook groove is provided at the bottom of the conical connector, and a convex block accommodated in the hook groove is provided at the edge of the hook.

[0008] Further, the conical surface angle of the conical connector is set to 110° - 120°, and the conical surface angle of the conical disengaging sliding sleeve is set to 35° - 45°.

[0009] Further, the conical surface angle of the conical connector is set to 112°, and the conical surface angle of the conical disengaging sliding sleeve is set to 38°.

[0010] Further, the conical surface angle of the conical surface is set to 145°.

[0011] Further, hook hinge seats are provided at intervals on the secondary chamber weight body, and the hooks are hinged to the hook hinge seats through hinge shafts.

[0012] Further, a limiting rod for restricting the opening position of the hook is provided above the hook hinge seat on the secondary chamber weight body.

[0013] Further, a threaded limiting sleeve is provided on the central rod of the feeding bucket below the conical connector, and the conical disengaging sliding sleeve slides between the conical connector and the threaded limiting sleeve.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. The fully automatic hanging and decoupling mechanism for single crystal furnace feeding of the present utility model is provided with a conical connector, a hook and an inverted conical decoupling sliding sleeve. When hanging the material, the hook descends to contact the upper end of the conical connector, and the conical surface contact drives the hanging claws to automatically open. The hook continues to descend through the side wall of the conical connector, and the hook retracts under the action of gravity and thus hangs at the bottom of the conical connector. After the hook hangs the material, it rises to complete the feeding. When taking the bucket, the hook descends to make the feeding bucket reach the bottom, and the hook continues to descend to the inverted conical decoupling sliding sleeve. The inverted conical decoupling sliding sleeve squeezes the side wall of the hook, and by moving upward the inverted conical decoupling sliding sleeve, the hook is disengaged from the bottom of the conical connector, achieving the effects of feeding and taking the bucket by using the stroke of the hook.

[0016] 2. It has the characteristics of small volume and convenient disassembly, and has greatly improved the process improvement, production safety, work efficiency, equipment protection, etc. in the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the fully automatic hanging and decoupling mechanism for single crystal furnace feeding of the present utility model;

[0018] Figure 2 is a usage state diagram of the fully automatic hanging and decoupling mechanism for single crystal furnace feeding of the present utility model;

[0019] Figure 3 is a sectional view of the fully automatic hanging and decoupling mechanism for single crystal furnace feeding of the present utility model.

[0020] Reference numerals: 1 - auxiliary chamber weight body; 2 - conical connector; 3 - hook hinge seat; 4 - connection channel; 5 - hook; 6 - feeding bucket central rod; 7 - inverted conical decoupling sliding sleeve; 8 - threaded limit sleeve; 9 - feeding bucket; 10 - limit rod; 11 - hinge shaft; 12 - convex block; 13 - hook groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Such as Figures 1-3Schematic structural diagram of a fully automatic hook hanging and detaching mechanism for feeding a single crystal furnace proposed by the present utility model. A fully automatic hook hanging and detaching mechanism for feeding a single crystal furnace of the present utility model includes a feeding bucket 9 and a secondary chamber weight body 1 for driving the lifting of the feeding bucket 9. A feeding bucket central rod 6 is arranged on the feeding bucket 9. A conical connector 2 is fixedly arranged at the top of the feeding bucket central rod 6. A conical detaching hook sliding sleeve 7 for sliding up and down is sleeved on the feeding bucket central rod 6 near the conical connector 2. A connecting channel 4 for accommodating the conical connector 2 to pass through is arranged in the secondary chamber weight body 1. Hooks 5 for hanging on the bottom of the conical connector 2 are evenly distributed around the connecting channel 4 at the lower part of the secondary chamber weight body 1. The lower part of the side wall of the hook 5 close to the conical connector 2 is set as a conical surface for abutting against the conical connector 2 and the conical detaching hook sliding sleeve 2 to open the hook 5.

[0023] In this embodiment, by arranging the conical connector 2, the hook 5 and the conical detaching hook sliding sleeve 7, during hook hanging, the hook 5 is lowered until it contacts the upper end of the conical connector 2. The conical surface contact drives the claw to automatically open. The hook 5 continues to descend through the side wall of the conical connector 2. The hook 5 retracts under the action of gravity and thus hangs on the bottom of the conical connector 2. After the hook hangs the material, it rises to complete the feeding. When taking the bucket, the hook 5 descends to lower the feeding bucket 9 to the bottom. The hook continues to descend to the conical detaching hook sliding sleeve. The conical detaching hook sliding sleeve squeezes the side wall of the hook, causing the hook to open and hang on the conical surface of the conical detaching hook sliding sleeve. Then the hook drives the conical detaching hook sliding sleeve to move upward, so that the hook disengages from the conical surface of the conical detaching hook sliding sleeve and the bottom of the conical connector. The effects of feeding and taking the bucket are realized by using the hook stroke. The operator only needs to participate in the actions of lowering and raising the hook, which is convenient and fast, greatly reducing the labor cost and potential production safety hazards, and significantly improving the production efficiency.

[0024] In a preferred embodiment, a hook groove 13 is arranged at the bottom of the conical connector 2. A convex block 12 for being accommodated in the hook groove 13 is arranged at the edge of the hook 5. In this embodiment, this structure facilitates the hook 5 to be limited in the hook groove 13 during feeding, facilitates the lifting of the feeding bucket, and avoids the opening of the hook during the lifting of the feeding bucket.

[0025] In a preferred embodiment, the conical surface angle of the conical connector 2 is set to 110° - 120°, and the conical surface angle of the conical detaching hook sliding sleeve 7 is set to 35° - 45°. The conical surface angle of the conical connector 2 is set to 112°, and the conical surface angle of the conical detaching hook sliding sleeve is set to 38°. In this structure, the conical surface angle of the conical connector 2 facilitates the opening of the hook and hanging on the bottom of the conical connector 2, and the conical surface angle of the conical detaching hook sliding sleeve 7 facilitates the hook to force the conical detaching hook sliding sleeve 7 to move upward.

[0026] In a preferred embodiment, the conical surface angle of the conical surface is set to 145°. This structure facilitates the opening of the hook 5 under the action of the conical surface and the retraction and hooking on the bottom of the conical connector 2 under the action of gravity.

[0027] In a preferred embodiment, hook hinge seats 3 are arranged at intervals on the auxiliary chamber weight 1. The hook 5 is hinged to the hook hinge seat 5 through a hinge shaft 11. This structure is convenient for installation and facilitates the opening of the hook 5 under the action of the conical surface and the automatic hanging on the bottom of the conical connector 2.

[0028] In a preferred embodiment, a limit rod 10 for restricting the opening position of the hook is arranged above the hook 5 on the hook hinge seat 3. This structure uses the limit rod 10 to control the opening position of the hook 5, which is convenient for the hook to retract and hang on the bottom of the conical connector 2 under gravity.

[0029] In a preferred embodiment, a threaded limit sleeve 8 is arranged below the conical connector 2 on the central rod 6 of the feeding bucket. The inverted conical unhooking sliding sleeve 6 slides between the conical connector 2 and the threaded limit sleeve 8. In this embodiment, the threaded limit sleeve 8 is used to support and limit the inverted conical unhooking sliding sleeve 6, which is convenient for controlling the stroke of the hook and facilitating unhooking.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. An automatic hook hanging and detaching mechanism for feeding a single crystal furnace, comprising a feeding bucket and a sub-chamber weight body for driving the feeding bucket to lift and lower, characterized in that: A charging barrel center rod is provided on the charging barrel. A conical connector is fixedly provided at the top of the charging barrel center rod. A conical detaching hook sliding sleeve for sliding up and down is sleeved on the charging barrel center rod near the conical connector. A connecting channel for the conical connector to pass through is provided in the secondary chamber weight body. Hooks for hanging on the bottom of the conical connector are evenly distributed around the connecting channel at the lower part of the secondary chamber weight body. The lower part of the side wall of the hook near the conical connector is provided with a conical surface for abutting against the conical connector and the conical detaching hook sliding sleeve to open the hook.

2. The fully automatic hook hanging and detaching mechanism for single crystal furnace feeding according to claim 1, wherein: A hook groove is provided at the bottom of the conical connector. A convex block for being received in the hook groove is provided near the edge of the hook.

3. The fully automatic hanging and detaching hook mechanism for single crystal furnace feeding according to claim 2, characterized in that: The conical surface angle of the conical connector is set to 110° - 120°, and the conical surface angle of the conical detaching hook sliding sleeve is set to 35° - 45°.

4. The fully automatic hook hanging and detaching mechanism for single crystal furnace feeding according to claim 3, characterized in that: The conical surface angle of the conical connector is set to 112°, and the conical surface angle of the conical detaching hook sliding sleeve is set to 38°.

5. The fully automatic hook hanging and detaching mechanism for single crystal furnace feeding according to claim 2, characterized in that: The conical surface angle of the conical surface is set to 145°.

6. The fully automatic hook hanging and detaching mechanism for single crystal furnace feeding according to claim 1, wherein: Hook hinge seats are spaced on the secondary chamber weight body, and the hooks are hinged on the hook hinge seats through hinge shafts.

7. The fully automatic hook hanging and detaching mechanism for single crystal furnace feeding according to claim 6, characterized in that: A limiting rod for restricting the opening position of the hook is provided above the hook on the hook hinge seat.

8. The fully automatic hook hanging and detaching mechanism for single crystal furnace feeding according to claim 1, characterized in that: A threaded limiting sleeve is provided on the charging barrel center rod below the conical connector, and the conical detaching hook sliding sleeve slides between the conical connector and the threaded limiting sleeve.

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