Purging mechanism for crucible mold trolley and crucible mold trolley

Abstract

The utility model discloses a blowing mechanism for a crucible mold trolley and the crucible mold trolley, the blowing mechanism for the crucible mold trolley comprises a blowing pipeline and a blowing part which are communicated with each other, the blowing pipeline is provided with at least four exhaust ends, each exhaust end is connected with the blowing part, the blowing part comprises a first connector and at least one first nozzle, and the first connector is connected with the blowing part. The first nozzle is installed at the exhaust end through the first connector. The purging pipeline is externally connected with a gas source and is configured to receive gas from the gas source and blow the gas out of the first nozzle. According to the blowing mechanism for the crucible mold trolley, through cooperation of the blowing pipeline and the blowing part, an external air source is received, air is blown out from the first nozzle at the exhaust end, the blowing mechanism is arranged on the crucible mold trolley, sundries on the moving path of the crucible mold trolley can be blown away, normal operation of the crucible mold trolley is guaranteed, and the service life of the crucible mold trolley is prolonged. And the service life of the crucible mold trolley is prolonged.

Description

Technical Field

[0001] This application relates to the field of crucible manufacturing equipment technology, and in particular to a purging mechanism for a crucible mold trolley and a crucible mold trolley. Background Technology

[0002] Quartz crucibles are important consumables in the Czochralski process for pulling single-crystal silicon. The electric arc method is currently the mainstream technology for preparing quartz crucibles. The process steps for producing quartz crucibles by the electric arc method are as follows: First, raw materials (such as quartz sand) are poured into the crucible mold. The quartz sand is shaped onto the inner surface of the crucible mold by rotating the crucible mold to form a crucible blank. Then, the crucible blank is burned by a high-temperature electric arc emitted by a graphite electrode to melt the quartz sand and obtain a crucible blank. Finally, the crucible blank is cooled and demolded.

[0003] Existing crucible molds are usually set on crucible mold carriages, which move the crucible molds laterally. However, during the preparation of quartz crucibles, the quartz sand inside the crucible mold is lifted up and scattered on the moving path of the crucible mold, affecting the normal operation of the crucible mold carriage. Utility Model Content

[0004] The purpose of this application is to provide a purging mechanism for a crucible mold carriage to solve the problem that scattered quartz sand inside the crucible mold during the preparation of existing quartz crucibles can affect the normal operation of the crucible mold carriage; another purpose of this application is to provide a crucible mold carriage including the purging mechanism for the crucible mold carriage.

[0005] To achieve this objective, the following technical solution is adopted in this application:

[0006] In a first aspect, this application proposes a purging mechanism for a crucible mold trolley, which includes a purging pipeline and a purging section that are interconnected, wherein:

[0007] The purging pipeline has at least four exhaust ends, each exhaust end is connected to a purging section, the purging section includes a first connector and at least one first nozzle, the first nozzle is installed at the exhaust end through the first connector;

[0008] The purging pipeline is connected to an external air source and is configured to receive gas from the air source and blow the gas out from the first nozzle.

[0009] The purging mechanism for the crucible mold carriage proposed in this application, through the cooperation of the purging pipeline and the purging unit, realizes the function of receiving external air source and blowing the gas out from the first nozzle at the exhaust end. When configured on the crucible mold carriage, it can blow away debris on the movement path of the crucible mold carriage, ensuring the normal operation of the crucible mold carriage and extending the service life of the crucible mold carriage.

[0010] Optionally, the first nozzle is an L-shaped nozzle.

[0011] By setting the first nozzle as an L type, the received gas is turned by a certain angle before being blown out, so as to meet different application scenarios.

[0012] Optionally, the first nozzle is installed on the first joint through a universal joint, and the blowing direction angle of the first nozzle is adjustable.

[0013] By setting the universal joint, the angle adjustment of the blowing direction of the first nozzle is realized, and the blowing direction of the first nozzle can be adjusted accordingly, thereby improving the sweeping effect of the first nozzle.

[0014] Optionally, the sweeping part includes two first nozzles, and the blowing directions of the two first nozzles are different.

[0015] By setting the sweeping part as two first nozzles with different blowing directions, the two different directions (i.e. positions) are swept with debris, which can further improve the sweeping effect of the sweeping mechanism.

[0016] In a second aspect, the application further provides a crucible mold trolley, which includes a driving assembly, a trolley body, a crucible mold assembly and the above-mentioned sweeping mechanism for the crucible mold trolley, wherein:

[0017] The crucible mold assembly is arranged on the trolley body.

[0018] The driving end of the driving assembly is connected to the trolley body, and the driving assembly is configured to drive the trolley body to reciprocate along a first direction.

[0019] The sweeping mechanism for the crucible mold trolley is arranged on the trolley body, the sweeping pipeline is arranged around the trolley body, and the sweeping part is configured to spray gas towards the moving path of the trolley body.

[0020] Through the cooperation of the driving assembly and the trolley body, the trolley body is realized to reciprocate along the first direction, thereby driving the crucible mold assembly to move; by arranging the sweeping pipeline of the sweeping mechanism for the crucible mold trolley around the trolley body, when the trolley body with the crucible mold assembly reciprocates along the first direction, the sweeping mechanism can blow away the debris on the moving path of the trolley body, thereby improving the moving stability of the trolley body and prolonging the service life of the trolley body.

[0021] Optionally, the crucible mold trolley further includes two tracks arranged in parallel and extending along the first direction, and a moving wheel carrying the trolley body and cooperating with the tracks.

[0022] Each track is correspondingly provided with a sweeping part, and the sweeping part is configured to spray gas towards the tracks and / or the moving wheel before or during the movement of the crucible mold trolley, so as to remove the debris on at least one of the tracks and the moving wheel.

[0023] When the track and the moving wheel are added to improve the fluency of the trolley movement, the blowing part is correspondingly arranged on each track to blow at least one of the track and the moving wheel supported on the track, and the dirt on the track and the moving wheel is removed to further improve the cleanliness of the trolley movement path.

[0024] Optionally, a limiting part is arranged on the head and tail of the at least one track.

[0025] By arranging the limiting part on the head and tail of the at least one track, the movement stroke of the trolley body is limited, the trolley body is prevented from leaving the track, and the safety and reliability of the trolley body movement are ensured.

[0026] Optionally, the driving assembly comprises a motor, a driving shaft, two transmission gears and two racks, wherein:

[0027] The fixed end of the motor is mounted on the trolley body, and the driving end of the motor is drivingly connected to the driving shaft;

[0028] The two transmission gears are respectively mounted on the two ends of the driving shaft, and the two racks are respectively mounted on the two tracks in the first direction, each transmission gear corresponds to a rack, and the transmission gear is engaged with the corresponding rack.

[0029] The blowing part is also configured to blow air towards at least one of the transmission gear and the rack before or during the movement of the trolley to remove the dirt on the at least one of the transmission gear and the rack.

[0030] When the driving assembly adopts the transmission structure of the gear and the rack with high transmission precision and strong bearing capacity, the blowing part blows air towards at least one of the transmission gear and the rack to remove the dirt thereon, reduces the influence of the dirt on the transmission efficiency of the driving assembly, and further improves the movement efficiency of the trolley body.

[0031] Optionally, the trolley further comprises a drag chain and a wiring groove, the first end of the drag chain is connected to the ground or the rack, the second end of the drag chain is connected to the trolley body, the wiring groove is arranged on the trolley body near one side of the drag chain, and the blowing pipeline is introduced into the drag chain through the wiring groove.

[0032] Through the cooperation of the drag chain and the wiring groove, the centralized hidden type pipe arrangement of the blowing pipeline is realized, which protects the blowing pipeline and makes the overall pipe arrangement of the trolley more tidy.

[0033] Optionally, the trolley further comprises a trolley mold assembly, a trolley mold, a turnover seat, a second driving member and a third driving member, wherein:

[0034] The turnover seat is rotatably mounted on the trolley body, the driving end of the second driving member is connected to the turnover seat, and the second driving member is configured to drive the turnover seat to turn a preset angle;

[0035] The crucible mold is rotatably mounted on the turnover seat, and the driving end of the third driving member is connected to the crucible mold, and the third driving member is configured to drive the crucible mold to rotate relative to the turnover seat.

[0036] Through cooperation of the second driving member, the turnover seat and the trolley body, the turnover of the crucible mold is realized, so as to facilitate pouring of the quartz sand into the crucible mold and facilitate taking out of the formed crucible from the mold; through cooperation of the third driving member and the crucible mold, the crucible mold is driven to rotate relative to the turnover seat, so as to form the quartz sand to the inner wall of the crucible mold through centrifugal force. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a perspective structural schematic diagram of the crucible mold trolley provided by the embodiment one of the present application;

[0038] Figure 2 is a perspective structural schematic diagram of the crucible mold trolley from a first perspective provided by the embodiment two of the present application;

[0039] Figure 3 is a perspective structural schematic diagram of the crucible mold trolley from a second perspective provided by the embodiment two of the present application. Figure 2 is a local enlarged view of A in FIG. 8;

[0040] Figure 4 is a perspective structural schematic diagram of the crucible mold trolley from a second perspective provided by the embodiment two of the present application.

[0041] Figures 1 to 4 includes the following reference signs:

[0042] The blowing mechanism 10 of the crucible mold trolley includes a blowing pipeline 11, a blowing part 12, a first joint 120 and a first nozzle 121.

[0043] The driving assembly 20 includes a motor 21, a driving shaft 22, a transmission gear 23 and a rack 24.

[0044] The trolley body 30;

[0045] The crucible mold assembly 40 includes a crucible mold 41, a turnover seat 42, a second driving member 43 and a third driving member 44.

[0046] The track 50, the moving wheel 51 and the limiting part 52.

[0047] The drag chain 60 and the wiring groove 61. DETAILED DESCRIPTION

[0048] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0049] The quartz crucible is an important consumable in the process of pulling single crystal silicon by the Czochralski method. The electric arc method is the mainstream technology for preparing the quartz crucible at present. The process steps for producing the quartz crucible by the electric arc method are as follows: firstly, pouring raw materials (for example, quartz sand) into the crucible mold, forming the quartz sand to the inner surface of the crucible mold by rotating the crucible mold to form a crucible blank, then burning the crucible blank by the high-temperature electric arc discharged by the graphite electrode to make the quartz sand melt to obtain a crucible blank, and finally cooling and demolding the crucible blank.

[0050] The existing crucible mold is usually arranged on a crucible mold trolley, and the crucible mold trolley drives the crucible mold to move horizontally. However, in the process of preparing the quartz crucible, the quartz sand in the crucible mold will be lifted and scattered on the moving path of the crucible mold moving horizontally, affecting the normal operation of the crucible mold trolley.

[0051] Therefore, referring to Figure 1 The present application provides a blowing mechanism 10 for a crucible mold trolley, which comprises a blowing pipeline 11 and a blowing part 12 that are in communication with each other. The blowing pipeline 11 has at least four exhaust ends, and each exhaust end is connected with the blowing part 12. The blowing part 12 comprises a first joint 120 and at least one first nozzle 121, and the first nozzle 121 is installed on the exhaust end through the first joint 120. The blowing pipeline 11 is connected with a gas source and is configured to receive gas from the gas source and blow the gas out from the first nozzle 121.

[0052] It can be seen that the blowing mechanism 10 for the crucible mold trolley of the present application realizes the reception of the external gas source and the blowing of the gas out from the first nozzle 121 of the exhaust end through the cooperation of the blowing pipeline 11 and the blowing part 12. By arranging the blowing mechanism 10 on the crucible mold trolley, the debris on the moving path of the crucible mold trolley can be blown away, the normal operation of the crucible mold trolley is ensured, and the service life of the crucible mold trolley is prolonged.

[0053] As an implementation manner, the first nozzle 121 is installed on the first joint 120 through a universal joint, and the blowing direction angle of the first nozzle 121 is adjustable.

[0054] It can be seen that by arranging the universal joint, the angle adjustment of the blowing direction of the first nozzle 121 is realized, the blowing direction of the first nozzle 121 can be adjusted in a targeted manner, and the blowing effect of the first nozzle 121 is improved.

[0055] The blowing mechanism 10 for the crucible mold trolley of the present application provides two different implementation manners of the first nozzle 121, and the two kinds of first nozzles 121 are described in detail as follows:

[0056] Example one

[0057] Please refer to Figure 1As shown in FIG. 1, as an implementation form, the first nozzle 121 of the blowing mechanism 10 for the crucible mold trolley is a straight nozzle, and the received gas is directly blown out through the straight nozzle.

[0058] Embodiment two

[0059] As shown in FIG. 1, as an implementation form, the first nozzle 121 of the blowing mechanism 10 for the crucible mold trolley is a straight nozzle, and the received gas is directly blown out through the straight nozzle. Figure 2 Figure 3 As shown in FIG. 1, as an implementation form, the first nozzle 121 of the blowing mechanism 10 for the crucible mold trolley is a straight nozzle, and the received gas is directly blown out through the straight nozzle.

[0060] As shown in FIG. 1, as an implementation form, the first nozzle 121 of the blowing mechanism 10 for the crucible mold trolley is a straight nozzle, and the received gas is directly blown out through the straight nozzle.

[0061] As an implementation form, the blowing part 12 includes two first nozzles 121, and the blowing directions of the two first nozzles 121 are different.

[0062] As shown in FIG. 1, as an implementation form, the first nozzle 121 of the blowing mechanism 10 for the crucible mold trolley is a straight nozzle, and the received gas is directly blown out through the straight nozzle.

[0063] As shown in FIG. 1, as an implementation form, the first nozzle 121 of the blowing mechanism 10 for the crucible mold trolley is a straight nozzle, and the received gas is directly blown out through the straight nozzle. Figure 2 Figure 3 As shown in FIG. 1, as an implementation form, the first nozzle 121 of the blowing mechanism 10 for the crucible mold trolley is a straight nozzle, and the received gas is directly blown out through the straight nozzle. Figure 2 As shown in FIG. 1, as an implementation form, the first nozzle 121 of the blowing mechanism 10 for the crucible mold trolley is a straight nozzle, and the received gas is directly blown out through the straight nozzle.

[0064] As shown in FIG. 1, as an implementation form, the first nozzle 121 of the blowing mechanism 10 for the crucible mold trolley is a straight nozzle, and the received gas is directly blown out through the straight nozzle.

[0065] ​​As an implementation form, the crucible mold trolley further comprises two parallel tracks 50 extending in the first direction, and moving wheels 51 carrying the trolley body 30 and cooperating with the tracks 50; each track 50 is correspondingly provided with a blowing part 12 configured to blow air towards the track 50 before or during the movement of the crucible mold trolley, so as to remove the sundries on the track 50;

[0066] Alternatively, the blowing part 12 is configured to blow air towards the moving wheels 51 before or during the movement of the crucible mold trolley, so as to remove the sundries on the moving wheels 51;

[0067] Alternatively, the blowing part 12 is configured to blow air towards the tracks 50 and the moving wheels 51 before or during the movement of the crucible mold trolley, so as to remove the sundries on the tracks 50 and the moving wheels 51.

[0068] It can be seen that when the tracks 50 and the moving wheels 51 are added in order to improve the smoothness of the movement of the trolley, by correspondingly providing the blowing part 12 on each track 50, the blowing part 12 blows air towards at least one of the tracks 50 and the moving wheels 51 supported on the tracks 50, so as to remove the sundries thereon, which can further improve the cleanliness of the movement path of the trolley.

[0069] As an implementation form, a limiting part 52 is arranged at the head and tail of at least one track 50.

[0070] Specifically, the limiting part 52 is a limiting block detachably mounted at a preset position of the track 50.

[0071] It can be seen that by arranging the limiting part 52 at the head and tail of at least one track 50, the movement stroke of the trolley body 30 is limited, the trolley body 30 is prevented from leaving the track, and the safety and reliability of the movement of the trolley body 30 are ensured.

[0072] Please refer to Figures 2 to 4 As an implementation form, the driving assembly 20 comprises a motor 21, a driving shaft 22, two transmission gears 23 and two racks 24, the fixed end of the motor 21 is mounted on the trolley body 30, and the driving end of the motor 21 is drivingly connected to the driving shaft 22; the two transmission gears 23 are respectively mounted at the two ends of the driving shaft 22, and the two racks 24 are respectively mounted on the two tracks 50 extending in the first direction; each transmission gear 23 corresponds to one rack 24, and the transmission gear 23 is engaged with the corresponding rack 24; the blowing part 12 is also configured to blow air towards the transmission gear 23 before or during the movement of the crucible mold trolley, so as to remove the sundries on the transmission gear 23;

[0073] Alternatively, the blowing part 12 is also configured to blow air towards the rack 24 before or during the movement of the crucible mold trolley, so as to remove the sundries on the rack 24;

[0074] Alternatively, the blowing part 12 is also configured to blow air towards the transmission gear 23 and the rack 24 before or while the crucible mold trolley moves, so as to remove sundries on the transmission gear 23 and the rack 24.

[0075] It can be seen that when the driving assembly 20 adopts the transmission gear 23 and the rack 24 which have high transmission precision and strong bearing capacity, blowing air towards at least one of the transmission gear 23 and the rack 24 by the blowing part 12 can remove sundries thereon, reduce the influence of the sundries on the transmission efficiency of the driving assembly 20, and further improve the moving efficiency of the trolley body 30.

[0076] As an embodiment, the crucible mold trolley further comprises a drag chain 60 and a wire slot 61, a first end of the drag chain 60 is connected to the ground or the rack, a second end of the drag chain 60 is connected to the trolley body 30, the wire slot 61 is arranged on the trolley body 30 near one side of the drag chain 60, and the blowing pipeline 11 is introduced into the drag chain 60 through the wire slot 61.

[0077] It can be seen that the concentrated hidden type pipe arrangement of the blowing pipeline 11 is realized through the cooperation of the drag chain 60 and the wire slot 61, which protects the blowing pipeline 11 and makes the overall pipe arrangement of the crucible mold trolley more tidy.

[0078] As an embodiment, the crucible mold assembly 40 comprises a crucible mold 41, a turnover seat 42, a second driving member 43 and a third driving member 44, the turnover seat 42 is rotatably installed on the trolley body 30, the driving end of the second driving member 43 is connected to the turnover seat 42, and the second driving member 43 is configured to drive the turnover seat 42 to turn over a preset angle; the crucible mold 41 is rotatably installed on the turnover seat 42, the driving end of the third driving member 44 is connected to the crucible mold 41, and the third driving member 44 is configured to drive the crucible mold 41 to rotate relative to the turnover seat 42.

[0079] Specifically, the second driving member 43 comprises a first rotary motor and a first transmission assembly, the first rotary motor drives the turnover seat 42 to turn over a preset angle through the first transmission assembly, and the first transmission assembly can be any one of a gear transmission pair or a belt transmission pair.

[0080] Specifically, the third driving member 44 comprises a second rotary motor and a second transmission assembly, the second rotary motor drives the crucible mold to rotate relative to the turnover seat 42 through the second transmission assembly, and the second transmission assembly can be any one of a gear transmission pair or a belt transmission pair.

[0081] It can be seen that through the cooperation of the second driving member 43, the turnover seat 42 and the trolley body 30, the turnover of the crucible mold 41 is realized, so as to facilitate the pouring of quartz sand into the crucible mold 41 and facilitate the taking out of the formed crucible from the mold; through the cooperation of the third driving member 44 and the crucible mold 41, the rotation of the crucible mold 41 relative to the turnover seat 42 is realized, so as to form the quartz sand to the inner wall of the crucible mold 41 through the centrifugal force.

[0082] The working principle of the blowing mechanism 10 for the crucible mold trolley of the crucible mold trolley according to the embodiment of the present application is as follows:

[0083] Before the driving assembly 20 drives the trolley body 30 to move in the first direction, the blowing pipeline 11 is connected with the gas, and the four exhaust ends of the blowing part 12 blow the gas towards the track 50 and the rack 24 at the starting position of the trolley body 30 through the first nozzle 121, so as to blow away the sundries on the track 50 and the rack 24 at the starting position of the trolley body 30;

[0084] Then, the driving assembly 20 drives the trolley body 30 to move in the first direction, and in the moving process, the blowing pipeline 11 moves synchronously with the trolley body 30, the blowing pipeline 11 is connected with the gas, and the four exhaust ends of the blowing part 12 blow the gas towards the track 50 and the rack 24 on the moving path of the trolley body 30 through the first nozzle 121, so as to blow away the sundries on the track 50 and the rack 24 on the moving path of the trolley body 30.

[0085] Of course, in specific applications, the four exhaust ends of the blowing part 12 can also blow the gas towards the track 50, the moving wheel 51, the transmission gear 23 and the rack 24 of the trolley body 30 through the first nozzle 121, so as to blow away the sundries on the track 50, the moving wheel 51, the transmission gear 23 and the rack 24 at the starting position or on the moving path of the trolley body 30.

[0086] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited by the above examples. Various changes and modifications of the present application can be made without departing from the spirit and scope of the present application, and these changes and modifications all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A purging mechanism for a crucible mold trolley, characterized by, The purging mechanism for the crucible mold trolley comprises a purging pipeline and a purging part in communication with each other, wherein: The purging pipeline has at least four exhaust ends, and each exhaust end is connected with the purging part, the purging part comprises a first joint and at least one first nozzle, and the first nozzle is installed on the exhaust end through the first joint; The purging pipeline is connected with a gas source, configured to receive gas from the gas source and blow the gas out from the first nozzle.

2. The purging mechanism for a crucible mold trolley according to claim 1, characterized by, The first nozzle is an L-shaped nozzle.

3. The purging mechanism for a crucible mold trolley according to claim 1, characterized by, The first nozzle is installed on the first joint through a universal joint, and the blowing direction angle of the first nozzle is adjustable.

4. The purging mechanism for a crucible mold trolley according to claim 1, characterized by, The purging part comprises two first nozzles, and the blowing directions of the two first nozzles are different.

5. A crucible mold trolley characterized by, The crucible mold trolley comprises a driving assembly, a trolley body, a crucible mold assembly and the purging mechanism for the crucible mold trolley according to any one of claims 1-4, wherein: The crucible mold assembly is arranged on the trolley body; The driving end of the driving assembly is connected with the trolley body, and the driving assembly is configured to drive the trolley body to reciprocate in a first direction; The purging mechanism for the crucible mold trolley is arranged on the trolley body, the purging pipeline is arranged around the trolley body, and the purging part is configured to spray gas towards the moving path of the trolley body.

6. The crucible mold buggy of claim 5, wherein, The crucible mold trolley further comprises two tracks arranged in parallel and extending in the first direction, and a moving wheel carrying the trolley body and cooperating with the tracks; Each track is correspondingly provided with the purging part, and the purging part is configured to blow gas towards the track and / or the moving wheel before or during the movement of the crucible mold trolley, so as to remove impurities on at least one of the track and the moving wheel.

7. The crucible mold buggy of claim 6, wherein, Limiting parts are respectively arranged at the head and tail ends of at least one track.

8. The crucible mold buggy of claim 6, wherein, The driving assembly comprises a motor, a driving shaft, two transmission gears and two racks, wherein: The fixed end of the motor is mounted on the trolley body, and the driving end of the motor is drivingly connected with the driving shaft; Two transmission gears are respectively mounted on both ends of the driving shaft, and two racks are respectively mounted on two tracks extending in the first direction, each transmission gear corresponds to a rack, and the transmission gear is engaged with the corresponding rack; The purging part is also configured to blow gas towards the transmission gear and / or the rack before or during the movement of the crucible mold trolley, so as to remove impurities on at least one of the transmission gear and the rack.

9. The crucible mold buggy of claim 5, wherein, The crucible mold trolley further comprises a drag chain and a wiring groove, the first end of the drag chain is connected to the ground or a rack, the second end of the drag chain is connected to the trolley body, the wiring groove is arranged on one side of the trolley body close to the drag chain, and the purging pipeline is introduced into the drag chain through the wiring groove.

10. The crucible mold buggy of claim 5, wherein, The crucible mold assembly comprises a crucible mold, a turnover seat, a second driving member and a third driving member, wherein: The turnover seat is rotatably mounted on the trolley body, the driving end of the second driving member is connected with the turnover seat, and the second driving member is configured to drive the turnover seat to turn by a preset angle; The crucible mold is rotatably mounted on the turnover seat, a driving end of the third driving member is connected to the crucible mold, and the third driving member is configured to drive the crucible mold to rotate relative to the turnover seat.

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