Pick-and-place device for guide cylinder of single crystal furnace

Abstract

The utility model provides a single crystal furnace guide cylinder taking and placing device which comprises a guide rod and at least three supporting plates arranged in the circumferential direction of the guide rod, the lower portion and the upper portion of each supporting plate are hinged to the lower portion and the middle of the guide rod through connecting rods respectively, and the upper portion of the guide rod is sleeved with a sliding sleeve. The supporting plate is further hinged to the sliding sleeve through a connecting rod. A supporting piece is arranged on the face, away from the guide rod, of the lower portion of the supporting plate. In the process of mounting before production and dismounting after crystal pulling is finished, the device is operated by two persons, and the guide cylinder is supported by using the supporting force of the supporting sheet and the friction force of the supporting plate, so that time and labor are saved, the risk that the production cost is increased due to collision or falling of the guide cylinder does not exist, and the workers are prevented from being collided.

Description

Technical Field

[0001] The utility model relates to a taking and placing device, in particular to a taking and placing device for a guide tube of a single crystal furnace. Background Art

[0002] The guide tube (heat shield) is used in the production process of single crystal silicon or silicon core crystal rod. This component sits directly above the quartz crucible and the silicon liquid surface, and plays the role of guiding gas to control the diameter of the crystal rod. Before production, the guide tube needs to be installed in the single crystal furnace. When the quartz crucible needs to be replaced after the crystal pulling is completed, the furnace body needs to be opened, the guide tube is taken out first, and then the quartz crucible, graphite or carbon / carbon crucible, etc. at the bottom are taken out.

[0003] At present, monocrystalline silicon or silicon core ingot production enterprises basically use workers to pick up and place them by holding guide tubes. The existing problems include:

[0004] First, the guide tube is heavy. During the installation before production and the disassembly after the crystal pulling is completed, the operator's height and strength are required to manually pick up and place the guide tube. It is not only physically demanding, but also dangerous. There is not only the risk of bumping or falling off the guide tube, which increases production costs, but also the risk of bumping into workers.

[0005] Second, after the crystal pulling is completed, this component needs to be removed from the heat field to accelerate the heat dissipation in the furnace so as to achieve a rapid cooling and heat field cleaning process. When the single crystal furnace is cooling, the guide tube cannot be taken out immediately because the temperature of the guide tube is high (about 450°C) when the furnace body is just opened. The traditional practice is to wait for the high-temperature guide tube to cool naturally for 2 hours (the temperature can drop to about 230°C). The employees use heat-insulating gloves to take out the guide tube by hand. Not only does waiting for cooling extend the time of dismantling the furnace, but the guide tube must also be quickly lifted out of the furnace after cooling (the temperature of the guide tube is still very high at this time). Otherwise, due to heat conduction, the operator's hands cannot withstand the high temperature and the guide tube falls off and is damaged, posing a serious threat to personal safety and cost. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a single crystal furnace guide tube taking and placing device.

[0007] The utility model adopts the following technical scheme: a single crystal furnace guide tube taking and placing device, which includes a guide rod and at least three support plates arranged on the circumference of the guide rod, the lower and upper parts of the support plates are respectively hinged to the lower and middle parts of the guide rod through connecting rods, a sliding sleeve is sleeved on the upper part of the guide rod, and the support plate is also hinged to the sliding sleeve through a connecting rod; a support sheet is provided on the lower surface of the support plate away from the guide rod.

[0008] Preferably, limiting devices are provided on the upper and lower sides of the guide rod located on the sliding sleeve.

[0009] Preferably, a hanging ring is provided on the outer side of the sliding sleeve.

[0010] Preferably, a support rod is fixed on the top of the guide rod.

[0011] Preferably, it further comprises a traction rope, one end of which is fixedly connected to the sliding sleeve, and the other end of which is fixed to the end of the support rod.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. During the installation before production and the disassembly after the crystal pulling of the utility model, two people operate the device, and use the supporting force of the supporting sheet and the friction force of the supporting plate to support the guide tube, which saves time and effort, and there is no risk of bumping or falling off the guide tube to increase production costs, and it also protects workers from bumping.

[0014] 2. When taking out the guide tube, the utility model does not need to wait for the high-temperature guide tube to cool naturally before taking it out from the single crystal furnace, which not only saves the time of dismantling the furnace, but also keeps the operator away from the guide tube and does not need to directly touch the guide tube, thus ensuring personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the guide tube taking and placing device in Example 1;

[0016] Figure 2 It is a partial schematic diagram of the guide tube taking and placing device in Example 1;

[0017] Figure 3 This is a diagram showing the use status of the guide tube taking and placing device in Example 1;

[0018] Figure 4 Schematic diagram of the guide tube taking and placing device in Example 2.

[0019] In the figure, there are guide rod 1, support plate 2, connecting rod 3, sliding sleeve 4, support sheet 5, limit device 6, hanging ring 7, support rod 8, traction rope 9 and guide tube 10. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Example 1

[0023] like Figure 1-3 As shown, a single crystal furnace guide tube taking and placing device comprises a guide rod 1 and three support plates 2 arranged on the circumference of the guide rod 1, the lower and upper parts of the support plates 2 are respectively hinged to the lower and middle parts of the guide rod 1 through connecting rods 3, a sliding sleeve 4 is sleeved on the upper part of the guide rod 1, and the upper part of the support plate 2 is also hinged to the sliding sleeve 4 through the connecting rod 3; a support sheet 5 is provided on the lower surface of the support plate 2 away from the guide rod 1.

[0024] Limiting devices 6 are provided on the upper and lower sides of the guide rod 1 located at the sliding sleeve 4 , a hanging ring 7 is provided on the outer side of the sliding sleeve 4 , and a supporting rod 8 is fixed on the top of the guide rod 1 .

[0025] When using the device, two people hold the two ends of the support rod 8 to lift the device, and use a long rod or other device to hook the hanging ring 7, so that the sliding sleeve 4 slides upward, and then the support plate 2 shrinks in the direction close to the guide rod 1;

[0026] Put the device into the guide tube 10 until the support sheet 5 is located at the lower part of the lower edge of the guide tube 10, loosen the hanging ring 7, the sliding sleeve 4 falls naturally, the connecting rod 3 opens the support plate 2, the support plate 2 fits the guide tube 10, lift the device until the support sheet 5 fits the lower edge of the guide tube 10, hook the guide tube 10, and complete the preparation work;

[0027] When installing the guide tube 10, lift the guide tube 10 and put it into the single crystal furnace, then hook the hanging ring 7, slide the sliding sleeve 4 upward, and shrink the support plate 2 toward the direction close to the guide rod 1, and lift the device out of the single crystal furnace as a whole, and complete the installation of the guide tube 10;

[0028] When taking out the guide tube 10, lift the guide tube 10 out of the single crystal furnace, lead it to the placement area, and then hook the hanging ring 7 to make the sliding sleeve 4 slide upward, and the support plate 2 shrinks in the direction close to the guide rod 1, and the device is lifted out of the guide tube 10 as a whole.

[0029] Example 2

[0030] like Figure 4 As shown, different from Example 1, this embodiment further includes a traction rope 9, one end of which is fixedly connected to the hanging ring 7, and the other end of the traction rope 9 is fixed to the end of the support rod 8.

[0031] The method of using the pick-and-place device in this embodiment refers to that in Embodiment 1, the difference is that the sliding sleeve 4 is lifted by manually pulling the traction rope 9. Specifically, the worker holds the support rod 8 with one hand and pulls the traction rope 9 with the other hand to lift the sliding sleeve 4.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A device for taking and placing the guide tube of a single crystal furnace, characterized in that: It includes a guide rod and at least three support plates arranged around the guide rod, the lower and upper parts of the support plates are respectively hinged to the lower and middle parts of the guide rod through connecting rods, a sliding sleeve is sleeved on the upper part of the guide rod, and the support plate is also hinged to the sliding sleeve through a connecting rod; a support sheet is provided on the lower surface of the support plate away from the guide rod.

2. The device for taking and placing the guide tube of a single crystal furnace according to claim 1, characterized in that: Limiting devices are provided on the upper and lower sides of the guide rod located on the sliding sleeve.

3. The device for taking and placing the guide tube of a single crystal furnace according to claim 1, characterized in that: A hanging ring is arranged on the outer side of the sliding sleeve.

4. The device for taking and placing the guide tube of a single crystal furnace according to any one of claims 1 to 3, characterized in that: A support rod is fixed on the top of the guide rod.

5. The device for taking and placing the guide tube of a single crystal furnace according to claim 4, characterized in that: It also includes a traction rope, one end of which is fixedly connected to the sliding sleeve, and the other end of which is fixed to the end of the support rod.

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