Lifting head thread rolling wheel bin mechanism

Abstract

The embodiment of the utility model provides a lifting head thread rolling wheel bin mechanism which comprises a thread rolling wheel bin and a rotating shaft, the rotating shaft is installed in the thread rolling wheel bin, a thread rolling wheel and a screw rod are arranged in the thread rolling wheel bin, the thread rolling wheel and the screw rod are both coaxially fixed on the rotating shaft, the rotating shaft is sleeved with a nut matched with the screw rod, and the rotating shaft is sleeved with a nut matched with the screw rod. The screw rod is matched with the nut to drive the rotating shaft to move axially, one end of the nut is fixed to the inner wall of the thread rolling wheel bin, the other end of the nut is coaxially and fixedly connected with a powder scraping nut, and the powder scraping nut is matched with the screw rod. According to the lifting head thread rolling wheel bin mechanism provided by the utility model, the powder scraping nut is arranged to be matched with the screw rod, so that fine powder generated by movement friction of the nut and the screw rod is scraped, the powder is prevented from being attached to a seed crystal rope, the crystal growth environment of a single crystal furnace is prevented from being polluted, and the quality of a produced product can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulling heads, and particularly relates to a wire winding wheel bin mechanism of a pulling head. Background Art

[0002] During the crystal pulling process, the function of the crystal lifting mechanism is to slowly lift the seed crystal through the pulling head, driving the seed crystal to gradually lift upward from the silicon melt in the crucible, so that silicon atoms are arranged according to a certain crystal structure on the basis of the seed crystal, thereby growing a single crystal silicon rod.

[0003] A wire winding wheel is a component used during the operation of a single crystal furnace. Its main function is to cooperate with a tungsten wire rope to lift and lower the crystal rod in the single crystal furnace.

[0004] When the wire winding wheel rotates and needs to move axially, the nut and the screw will have frictional movement, generating some fine copper powder, which adheres to the gaps of the seed crystal rope made of multiple fine wires. As the seed crystal rope rises and falls, it drops into the furnace, causing heavy metal pollution. Usually, due to the special attention to heavy metal pollution in the crystal growth environment of the single crystal furnace, even a tiny amount of metal entering the thermal field or solution in the single crystal furnace will cause the finished product quality of the product to fail to meet the standards. Summary of the Utility Model

[0005] In view of the above problems existing in the prior art, the purpose of the embodiment of the present utility model is to provide a wire winding wheel bin mechanism of a pulling head.

[0006] The technical solution adopted in the embodiment of the present utility model is a wire winding wheel bin mechanism of a pulling head, including a wire winding wheel bin and a rotating shaft. The rotating shaft is installed in the wire winding wheel bin. A wire winding wheel and a screw rod are arranged in the wire winding wheel bin. Both the wire winding wheel and the screw rod are coaxially fixed on the rotating shaft. A nut matching the screw rod is sleeved on the rotating shaft. The screw rod cooperates with the nut to drive the axial displacement of the rotating shaft. One end of the nut is fixed on the inner wall of the wire winding wheel bin, and the other end of the nut is coaxially fixedly connected with a powder scraping nut, and the powder scraping nut cooperates with the screw rod.

[0007] Further, a powder collection mechanism is arranged on the powder scraping nut.

[0008] Further, the powder collection mechanism includes a powder discharge hole, which is opened at the bottom of the powder scraping nut, and the powder discharge hole communicates with the inner cavity of the powder scraping nut.

[0009] Further, the powder collection mechanism further includes a powder collection box, which is placed below the powder scraping nut, and the powder collection box receives the discharge from the powder discharge hole.

[0010] Further, it further includes a power mechanism, and the power mechanism includes a transmission mechanism and a power source. The power source outputs power to drive the rotating shaft through the transmission mechanism.

[0011] Further, the transmission mechanism includes a worm gear sleeve and a worm. The worm gear sleeve meshes with the worm. The worm is connected to the power source to input power. The worm gear sleeve is sleeved on the rotating shaft so that the worm gear sleeve transmits power to the rotating shaft, and the rotating shaft can axially displace within the inner cavity of the worm gear sleeve.

[0012] Further, an opening and a cover are provided on the wire winding wheel bin. The cover covers the opening, and the cover is fixed to the wire winding wheel bin by screws.

[0013] Compared with the prior art, the wire winding wheel bin mechanism of the lifting head proposed by the present utility model is provided with a powder scraping nut cooperating with a screw rod to scrape the fine powder generated by the movement friction between the nut and the screw rod, avoiding the powder from adhering to the seed crystal rope, helping to avoid the contamination of the crystal growing environment in the single crystal furnace, and thus being able to improve the quality of the produced products.

[0014] It should be understood that the foregoing general description and the following detailed description are both exemplary and explanatory and are not intended to limit the present utility model.

[0015] The overview of various implementations or examples of the technologies described in the present utility model is not a complete disclosure of the entire scope of the disclosed technologies or all features. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the drawings which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with alphabetical suffixes or different alphabetical suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example rather than limitation, and are used together with the description and the claims to illustrate the embodiments of the present utility model. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be an exhaustive or exclusive embodiment of the device or method.

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.

[0018] Figure 2 It is a schematic structural diagram of the powder scraping nut of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Unless otherwise defined, the technical terms or scientific terms used in the present utility model shall have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model pertains. The terms "first", "second" and similar terms used in the present utility model do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] In order to keep the following description of the embodiments of the present utility model clear and concise, the detailed descriptions of known functions and known components are omitted in the present utility model.

[0022] Referring to Figures 1 to 2 , an embodiment of the present utility model provides a lifting head wire winding wheel bin mechanism, including a wire winding wheel bin 1 and a rotating shaft 2. The rotating shaft 2 is installed in the wire winding wheel bin 1. A wire winding wheel 3 and a screw rod 4 are arranged in the wire winding wheel bin 1. The wire winding wheel 3 and the screw rod 4 are both coaxially fixed on the rotating shaft 2. A nut 5 matching the screw rod 4 is sleeved on the rotating shaft 2. The screw rod 4 cooperates with the nut 5 to drive the axial displacement of the rotating shaft 2. One end of the nut 5 is fixed on the inner wall of the wire winding wheel bin 1, and the other end of the nut 5 is coaxially fixedly connected with a powder scraping nut 6. The powder scraping nut 6 cooperates with the screw rod 4. This technical solution sets the powder scraping nut 6 to cooperate with the screw rod 4 to scrape the fine powder generated by the moving friction between the nut 5 and the screw rod 4, avoiding the powder from adhering to the seed crystal rope, which helps to avoid the contamination of the crystal growth environment in the single crystal furnace, thereby improving the quality of the produced products. The powder scraping nut 6 is preferably made of flexible plastic material so that the powder scraping nut 6 can keep close to the screw rod 4, which helps to scrape the powder.

[0023] A powder collecting mechanism is arranged on the powder scraping nut 6. The powder collecting mechanism is used to collect the powder to avoid the powder from adhering to the seed crystal rope.

[0024] The powder collection mechanism includes a powder discharge hole 7, which is opened at the bottom of the powder scraping nut 6, and the powder discharge hole 7 communicates with the inner cavity of the powder scraping nut 6. The powder discharge hole 7 is used to discharge the powder scraped by the powder scraping nut 6, which is convenient for collection and cleaning.

[0025] The powder collection mechanism further includes a powder collection box 8, which is placed below the powder scraping nut 6, and the powder collection box 8 receives the discharge from the powder discharge hole 7. The powder collection box 8 is used to collect the powder. This helps to reduce the maintenance and cleaning frequency of such a drawhead wire winding wheel bin mechanism.

[0026] It further includes a power mechanism, which includes a transmission mechanism 9 and a power source. The power source outputs power to drive the rotating shaft 2 through the transmission mechanism 9. The transmission mechanism 9 includes a worm gear sleeve 91 and a worm 92. The worm gear sleeve 91 and the worm 92 are engaged. The worm 92 is connected to the power source to input power. The worm gear sleeve 91 is sleeved on the rotating shaft 2 so that the worm gear sleeve 91 transmits power to the rotating shaft 2, and the rotating shaft 2 can axially displace within the inner cavity of the worm gear sleeve 91. The rotating shaft 2 is a spline shaft, and a chute matching the spline is provided on the inner cavity wall of the worm gear sleeve 91 to ensure that the worm gear sleeve 91 can drive the rotating shaft 2 to rotate, and the rotating shaft 2 can axially displace within the inner cavity of the worm gear sleeve 91.

[0027] An opening and a cover are provided on the wire winding wheel bin 1. The cover covers the opening, and the cover is fixed to the wire winding wheel bin 1 by screws. The opening is used to facilitate maintenance and cleaning operations.

[0028] The above description is intended to be illustrative rather than restrictive, and those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more of their solutions) can be used in combination with each other, and it is considered that these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A lifting head wire winding wheel bin mechanism, comprising a wire winding wheel bin (1) and a rotating shaft (2), the rotating shaft (2) is installed in the wire winding wheel bin (1), characterized in that, A wire winding wheel chamber (1) is provided with a wire winding wheel (3) and a screw rod (4). The wire winding wheel (3) and the screw rod (4) are both coaxially fixed on a rotating shaft (2). A nut (5) engaging with the screw rod (4) is sleeved on the rotating shaft (2). The screw rod (4) cooperates with the nut (5) to drive the axial displacement of the rotating shaft (2). One end of the nut (5) is fixed on the inner wall of the wire winding wheel chamber (1), and the other end of the nut (5) is coaxially fixedly connected with a powder scraping nut (6). The powder scraping nut (6) cooperates with the screw rod (4).

2. The wire winding wheel bin mechanism of a lifting head according to claim 1, characterized in that, A powder collecting mechanism is provided on the powder scraping nut (6).

3. The wire winding wheel bin mechanism of the pull head according to claim 2, characterized in that, The powder collecting mechanism includes a powder discharge hole (7). The powder discharge hole (7) is opened at the bottom of the powder scraping nut (6), and the powder discharge hole (7) communicates with the inner cavity of the powder scraping nut (6).

4. The wire winding wheel bin mechanism of a pull head according to claim 3, characterized in that, The powder collecting mechanism further includes a powder collecting box (8). The powder collecting box (8) is placed below the powder scraping nut (6), and the powder collecting box (8) receives the discharged material from the powder discharge hole (7).

5. The wire coiling wheel bin mechanism of a pulling head according to claim 1, characterized in that, It further includes a power mechanism. The power mechanism includes a transmission mechanism (9) and a power source. The power source outputs power to drive the rotating shaft (2) through the transmission mechanism (9).

6. The wire winding wheel bin mechanism of a pull head according to claim 5, characterized in that, The transmission mechanism (9) includes a worm gear sleeve (91) and a worm (92). The worm gear sleeve (91) meshes with the worm (92). The worm (92) is connected to the power source to input power. The worm gear sleeve (91) is sleeved on the rotating shaft (2) so that the worm gear sleeve (91) transmits power to the rotating shaft (2), and the rotating shaft (2) can axially displace in the inner cavity of the worm gear sleeve (91).

7. The wire coiling wheel bin mechanism of a lifting head according to claim 1, wherein, An opening and a cover are provided on the wire winding wheel chamber (1). The cover covers the opening. The cover is fixed on the wire winding wheel chamber (1) by screws.

Images