Workbench for cutting graphite paper in thermal field

Abstract

The utility model provides a work table for cutting graphite paper in a thermal field, which comprises a work table support, an insulating plate is arranged on the work table support, a graphite paper winding mechanism is arranged on the insulating plate, the graphite paper winding mechanism comprises a first support arranged on the insulating plate, and a second support arranged on the first support. A first rotating shaft used for winding graphite paper is arranged on the graphite paper bracket; a winding film winding mechanism is arranged on the insulating plate, the winding film winding mechanism comprises a second support arranged on the insulating plate, a winding film rotating shaft used for winding a winding film is arranged on the second support, and the central axis of the winding film rotating shaft is perpendicular to the central axis of the first rotating shaft; a cutting knife parallel to the first rotating shaft is further arranged on the insulating plate, one end of the cutting knife is rotationally connected with the second support, and when the first rotating shaft and the wrapping film rotating shaft rotate, the graphite paper extending from the first rotating shaft sequentially passes through the cutting knife and the wrapping film extending from the wrapping film rotating shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal field assembly of single crystal furnaces, in particular to a workbench used for cutting thermal field graphite paper. Background Art

[0002] In the photovoltaic single crystal manufacturing industry, the single crystal furnace needs to pull single crystal silicon rods in a thermal field. The components that constitute the thermal field include solid soft felt, graphite electrodes, gas guide tubes, support rods, heaters, crucibles, crucibles, quartz crucibles, insulation tubes, guide tubes, etc. Generally, graphite paper is required to be padded between the outer felts of the insulation tube and the inner felts of the guide tube to enhance the thermal insulation performance, and graphite paper is padded between the crucible support and the crucible to increase the sealing and reduce the risk of silicon leakage.

[0003] At present, in the factory assembly process, graphite paper is usually in the shape of a bundled cylinder. Whenever it is used, workers are generally required to cut the graphite paper manually. Manual cutting will result in irregular sizes. In addition, when cutting in the factory, there is a large amount of dust in the factory that will contaminate the surface of the graphite paper. When the graphite paper is applied directly to the crucible support and the crucible bond, the presence of dust will cause a certain degree of impact on the sealing. Utility Model Content

[0004] The utility model aims to provide a workbench for cutting graphite paper in a thermal field, which can cut graphite paper of different required sizes by using a cutting knife and a movable baffle, and, while cutting, uses an upper and lower layer of winding film to protect the graphite paper, so as to prevent the graphite paper from being contaminated with dust, thereby affecting the sealing of the graphite paper between the crucible support and the crucible bond.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] A workbench for cutting graphite paper in a thermal field, comprising a workbench bracket, an insulating plate is arranged on the workbench bracket, a graphite paper winding mechanism is arranged on the insulating plate, the graphite paper winding mechanism comprises a first bracket arranged on the insulating plate, and a first rotating shaft for winding graphite paper is arranged on the graphite paper bracket;

[0007] The insulating plate is provided with a wrapping film winding mechanism, the wrapping film winding mechanism comprises a second bracket provided on the insulating plate, the second bracket is provided with a wrapping film rotating shaft for winding the wrapping film, and the central axis of the wrapping film rotating shaft is perpendicular to the central axis of the first rotating shaft;

[0008] The insulating plate is also provided with a cutting knife parallel to the first rotating shaft, one end of the cutting knife is rotatably connected to the second bracket, and when the first rotating shaft and the winding film rotating shaft rotate, the graphite paper extending from the first rotating shaft passes through the cutting knife and the winding film extending from the winding film rotating shaft in sequence.

[0009] Furthermore, the wrapping film support is provided with a second rotating shaft and a third rotating shaft arranged in a straight line from top to bottom in the vertical direction, and the central axes of the second rotating shaft and the third rotating shaft are perpendicular to the central axis of the first rotating shaft. The second rotating shaft is used to roll up the upper wrapping film above the graphite paper, and the third rotating shaft is used to roll up the lower wrapping film below the graphite paper.

[0010] Furthermore, a graphite paper strip parallel to the first rotating shaft is provided on the insulating plate, one end of the graphite paper strip is fixed to the second bracket by a bolt, and the bottom of the graphite paper strip is in contact with the insulating plate. When the first rotating shaft and the wrapping film rotating shaft rotate, the graphite paper extending from the first rotating shaft passes through the cutting knife, the wrapping film extending from the wrapping film rotating shaft, and the graphite paper strip in sequence.

[0011] Furthermore, the second bracket includes a left plate and a right plate, and both ends of the wrapping film shaft are respectively connected to the left plate and the right plate through bearings, the right plate is arranged close to the first bracket and fixed on the insulating plate, the left plate is arranged away from the first bracket and the left plate slides on the insulating plate in a direction perpendicular to the first shaft, and one end of the graphite paper baffle is fixed to the left plate by a bolt.

[0012] Furthermore, a slide groove is provided on the insulating plate, and the slide groove extends in a direction perpendicular to the first rotating shaft. A threaded hole is provided at the bottom of the left side plate, and a screw is sleeved in the threaded hole. The screw vertically passes through the slide groove and is fixed in the slide groove by a nut.

[0013] Furthermore, the bottom of the right side plate is connected to a base fixed on the insulating plate, a fourth rotating shaft is arranged in the base, and one end of the cutting knife is sleeved on the fourth rotating shaft and rotates on the fourth rotating shaft.

[0014] Furthermore, a spring located above the base is also provided on the right side plate, and the other end of the spring is connected to the fourth rotating shaft. When the spring is in an initial state, the bottom of the cutting knife is away from the insulating plate.

[0015] Furthermore, the cutting knife is made of a plastic strip.

[0016] Furthermore, a cutting knife guard bar is also provided on the insulating plate, and the cutting knife guard bar is located on the side of the cutting knife, and the cutting knife guard bar faces the side of the cutting knife and is in contact with the side of the cutting knife. When the first rotating shaft and the wrapping film rotating shaft rotate, the graphite paper extending from the first rotating shaft passes through the cutting knife guard bar, the cutting knife, and the wrapping film extending from the wrapping film rotating shaft in sequence.

[0017] Beneficial effects of the utility model:

[0018] The utility model provides a workbench for cutting hot field graphite paper, which can cut graphite paper of different required sizes by using a cutting knife and a movable baffle, and while cutting, the graphite paper is protected by upper and lower layers of winding films to prevent the graphite paper from being contaminated with dust, thereby affecting the sealing of the graphite paper between a crucible support and a crucible bond. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a workbench for cutting thermal field graphite paper in Example 1 of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the graphite paper baffle in Example 1 of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the cutting knife in Example 1 of the utility model;

[0022] Explanation of the accompanying drawings: 1-workbench bracket, 11-insulating plate, 12-slide groove, 2-first bracket, 3-first rotating shaft, 4-second bracket, 41-right side plate, 42-left side plate, 5-second rotating shaft, 6-third rotating shaft, 7-cutting knife baffle, 8-cutting knife, 9-graphite paper baffle, 10-screw, 13-spring. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the implementation methods of the present invention are not limited thereto.

[0024] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The present invention is described in detail below with reference to the accompanying drawings and in combination with embodiments:

[0027] Example 1

[0028] Because, in the current factory assembly process, graphite paper is usually in the shape of a bundled cylinder. Whenever it is used, it is generally necessary for staff to cut the graphite paper manually. Manual cutting will result in irregular sizes. In addition, when cutting in the factory, there is a large amount of dust in the factory that will contaminate the surface of the graphite paper. When the graphite paper is applied directly to the crucible support and the crucible bond, the presence of dust will cause a certain degree of impact on the sealing.

[0029] Therefore, the utility model provides a workbench for cutting hot field graphite paper, which can cut graphite paper of different required sizes by using a cutting knife 8 and a movable baffle. In addition, while cutting, the upper and lower layers of wrapping film are used to protect the graphite paper to prevent the graphite paper from being contaminated with dust, which in turn affects the sealing of the graphite paper between the crucible support and the crucible bond.

[0030] Specifically, Figure 1 , Figure 2 , Figure 3 As shown, a workbench for cutting graphite paper in a thermal field comprises a workbench bracket 1, an insulating plate 11 is arranged on the workbench bracket 1, a graphite paper winding mechanism is arranged on the insulating plate 11, the graphite paper winding mechanism comprises a first bracket 2 arranged on the insulating plate 11, and a first rotating shaft 3 for winding graphite paper is arranged on the graphite paper bracket;

[0031] The insulating plate 11 is provided with a wrapping film winding mechanism, the wrapping film winding mechanism comprises a second bracket 4 provided on the insulating plate 11, the second bracket 4 is provided with a wrapping film rotating shaft for winding the wrapping film, and the central axis of the wrapping film rotating shaft is perpendicular to the central axis of the first rotating shaft 3;

[0032] The insulating plate 11 is also provided with a cutting knife 8 parallel to the first rotating shaft 3, and one end of the cutting knife 8 is rotatably connected to the second bracket 4. When the first rotating shaft 3 and the winding film rotating shaft rotate, the graphite paper extending from the first rotating shaft 3 passes through the cutting knife 8 and the winding film extending from the winding film rotating shaft in sequence.

[0033] Preferably, the wrapping film support is provided with a second rotating shaft 5 and a third rotating shaft 6 arranged in a straight line from top to bottom in the vertical direction, and the central axes of the second rotating shaft 5 and the third rotating shaft 6 are perpendicular to the central axis of the first rotating shaft 3. The second rotating shaft 5 is used to roll up the upper wrapping film above the graphite paper, and the third rotating shaft 6 is used to roll up the lower wrapping film below the graphite paper. The purpose is to wrap the graphite paper with the wrapping films arranged above and below, and store the cut graphite paper in the wrapping film. The wrapping film can be made of plastic film, mainly to prevent the surface of the graphite paper from being contaminated with dust, thereby affecting the sealing of the graphite paper between the crucible support and the crucible.

[0034] Preferably, the insulating plate 11 is also provided with a graphite paper baffle 9 arranged parallel to the first rotating shaft 3, one end of the graphite paper baffle 9 is fixed to the second bracket 4 by bolts, and the bottom of the graphite paper baffle 9 is in contact with the insulating plate 11. When the first rotating shaft 3 and the winding film rotating shaft rotate, the graphite paper extending from the first rotating shaft 3 passes through the cutting knife 8, the winding film extending from the winding film rotating shaft, and the graphite paper baffle 9 in sequence. The purpose is to position graphite papers of different sizes on the insulating plate 11 through the graphite paper baffle 9, and fix the graphite paper to be cut, so that the staff can cut graphite papers of different sizes.

[0035] Preferably, the second bracket 4 includes a left plate 42 and a right plate 41, and the two ends of the wrapping film shaft are respectively connected to the left plate 42 and the right plate 41 through bearings, the right plate is arranged close to the first bracket 2 and fixed on the insulating plate 11, the left plate 42 is arranged away from the first bracket 2 and the left plate 42 slides on the insulating plate 11 in a direction perpendicular to the first rotating shaft 3, and one end of the graphite paper baffle 9 is fixed to the left plate 42 by bolts.

[0036] Preferably, a slide groove 12 is provided on the insulating plate 11, and the slide groove 12 extends in a direction perpendicular to the first rotating shaft 3. A threaded hole is provided at the bottom of the left side plate 42, and a screw 10 is sleeved in the threaded hole. The screw 10 vertically penetrates the slide groove 12 and is fixed in the slide groove 12 by a nut.

[0037] In this embodiment, the graphite paper baffle 9 is a movable baffle, which is moved in the card slot by the left side plate 42, so that the graphite paper baffle 9 can maintain horizontal movement along the extension direction of the card slot on the insulating plate 11, so that the graphite paper baffle 9 is not easy to deviate, thereby facilitating the staff to locate the graphite paper size, and can plan to cut graphite paper of different required sizes. Among them, a second rotating shaft 5 and a third rotating shaft 6 are arranged between the left side plate 42 and the right side plate. After the left side plate 42 moves, the second rotating shaft 5 and the third rotating shaft 6 of corresponding length can be selected to connect with the left side plate 42 and the right side plate 41; when the left side plate 42 moves, since the rotating shafts of the second rotating shaft 5 and the third rotating shaft 6 have surplus, the left side plate 42 can move within a certain range.

[0038] Preferably, the bottom of the right side plate 41 is connected to a base fixed on the insulating plate 11, a fourth rotating shaft is arranged in the base, and one end of the cutting knife 8 is sleeved on the fourth rotating shaft and rotates on the fourth rotating shaft. The purpose is that the graphite paper below the cutting knife 8 can be cut by rotating the cutting knife 8.

[0039] Preferably, the right side plate 41 is further provided with a spring 13 located above the base, the other end of the spring 13 is connected to the fourth rotating shaft, and when the spring 13 is in the initial state, the bottom of the cutting knife 8 is away from the insulating plate 11. The purpose is to pull up the graphite paper through the spring 13 so that the cutting knife 8 can be kept in an upward state by the spring 13 in the initial state.

[0040] Preferably, the material of the cutting knife 8 is a plastic strip. The purpose is to cut the graphite paper by the plastic strip cutting knife 8, and at the same time, avoid the cutting knife 8 causing harm to the staff.

[0041] Preferably, a cutting knife stopper 7 is also provided on the insulating plate 11, and the cutting knife stopper 7 is located on the side of the cutting knife 8, and the cutting knife stopper 7 faces the side of the cutting knife 8 and fits the side of the cutting knife 8. When the first rotating shaft 3 and the winding film rotating shaft rotate, the graphite paper extending from the first rotating shaft 3 passes through the cutting knife stopper 7, the cutting knife 8, and the winding film extending from the winding film rotating shaft in sequence. The purpose is that the cutting knife stopper 7 and the movable graphite paper stopper 9 can facilitate the staff to position the size of the graphite paper to be cut. Only by moving the graphite paper stopper 9, the spacing between the graphite paper stopper 9 and the cutting knife stopper 7 can be adjusted, thereby adjusting the size of the graphite paper. In addition, the two ends of the graphite paper to be cut can also be fixed by the graphite paper stopper 9 and the cutting knife stopper 7 to prevent the graphite paper from being offset during the cutting process, resulting in a poor cutting effect.

[0042] In this embodiment, the specific working process is:

[0043] First, measure and confirm that the distance between the graphite paper baffle and the cutting strip baffle reaches the required length, then move the left side plate 42 by moving the screw 10 located in the slot, and then move the graphite paper baffle fixed on the left side plate 42 to the corresponding position, and then fix the screw 10 located in the slot through the matching relationship between the screw 10 and the nut, so that the position of the graphite paper baffle 9 is fixed, and then pull out the lower layer of wrapping film and lay it on the insulating board 11, and then pull out the graphite paper to the position of the graphite paper baffle, press down the cutting knife 8 to cut the graphite paper, and then pull out the upper layer of wrapping film and lay it on the graphite paper, and complete the cutting and storage of a piece of graphite paper. Repeat this process to cut and reserve graphite paper in batches in a standardized manner.

[0044] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A workbench for cutting thermal field graphite paper, characterized in that: The invention comprises a workbench support (1), an insulating plate (11) being arranged on the workbench support (1), a graphite paper winding mechanism being arranged on the insulating plate (11), the graphite paper winding mechanism comprising a first support (2) being arranged on the insulating plate (11), and a first rotating shaft (3) for winding up the graphite paper being arranged on the graphite paper support; The insulating plate (11) is provided with a wrapping film winding mechanism, the wrapping film winding mechanism comprising a second bracket (4) arranged on the insulating plate (11), the second bracket (4) being provided with a wrapping film rotating shaft for winding the wrapping film, the central axis of the wrapping film rotating shaft being perpendicular to the central axis of the first rotating shaft (3); The insulating plate (11) is also provided with a cutting knife (8) parallel to the first rotating shaft (3); one end of the cutting knife (8) is rotatably connected to the second bracket (4); when the first rotating shaft (3) and the winding film rotating shaft rotate, the graphite paper extending from the first rotating shaft (3) passes through the cutting knife (8) and the winding film extending from the winding film rotating shaft in sequence; The insulating plate (11) is also provided with a graphite paper baffle (9) arranged parallel to the first rotating shaft (3); one end of the graphite paper baffle (9) is fixed to the second bracket (4) by means of a bolt; the bottom of the graphite paper baffle (9) is in contact with the insulating plate (11); when the first rotating shaft (3) and the winding film rotating shaft rotate, the graphite paper extending from the first rotating shaft (3) passes through the cutting knife (8), the winding film extending from the winding film rotating shaft, and the graphite paper baffle (9) in sequence.

2. A workbench for cutting thermal field graphite paper according to claim 1, characterized in that: The wrapping film support is provided with a second rotating shaft (5) and a third rotating shaft (6) arranged in a straight line from top to bottom in the vertical direction, and the central axes of the second rotating shaft (5) and the third rotating shaft (6) are perpendicular to the central axis of the first rotating shaft (3), the second rotating shaft (5) is used to roll up the upper wrapping film located above the graphite paper, and the third rotating shaft (6) is used to roll up the lower wrapping film located below the graphite paper.

3. A workbench for cutting thermal field graphite paper according to claim 1, characterized in that: The second bracket (4) comprises a left side plate (42) and a right side plate (41), and the two ends of the winding film shaft are respectively connected to the left side plate (42) and the right side plate (41) through bearings, the right side plate (41) is arranged close to the first bracket (2) and fixed on the insulating plate (11), the left side plate (42) is arranged away from the first bracket (2) and the left side plate (42) slides on the insulating plate (11) in a direction perpendicular to the first rotating shaft (3), and one end of the graphite paper baffle (9) is fixed to the left side plate (42) by bolts.

4. A workbench for cutting thermal field graphite paper according to claim 3, characterized in that: The insulating plate (11) is provided with a slide groove (12), and the slide groove (12) extends in a direction perpendicular to the first rotating shaft (3). The bottom of the left side plate (42) is provided with a threaded hole, and a screw rod (10) is sleeved in the threaded hole. The screw rod (10) vertically penetrates the slide groove (12) and is fixed in the slide groove (12) by a nut.

5. The workbench for cutting thermal field graphite paper according to claim 3, characterized in that: The bottom of the right side plate (41) is connected to a base fixed on the insulating plate (11), a fourth rotating shaft is arranged in the base, and one end of the cutting knife (8) is sleeved on the fourth rotating shaft and rotates on the fourth rotating shaft.

6. A workbench for cutting thermal field graphite paper according to claim 5, characterized in that: The right side plate (41) is also provided with a spring (13) located above the base, the other end of the spring (13) is connected to the fourth rotating shaft, and when the spring (13) is in the initial state, the bottom of the cutting knife (8) is away from the insulating plate (11).

7. A workbench for cutting thermal field graphite paper according to claim 1, characterized in that: The cutting knife (8) is made of a plastic strip.

8. The workbench for cutting thermal field graphite paper according to claim 1, characterized in that: The insulating plate (11) is also provided with a cutting knife stop bar (7), the cutting knife stop bar (7) is located on the side of the cutting knife (8), and the cutting knife stop bar (7) faces the side of the cutting knife (8) and is in contact with the side of the cutting knife (8), and when the first rotating shaft (3) and the winding film rotating shaft rotate, the graphite paper extending from the first rotating shaft (3) passes through the cutting knife stop bar (7), the cutting knife (8), and the winding film extending from the winding film rotating shaft in sequence.

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