Cutting device

Abstract

The utility model provides a cutting device which comprises a support, a diamond wire, a positioning part connected with the support, a gear train mechanism and a motor. The positioning part is used for abutting against a horizontal positioning surface of a thermal insulation cylinder of the single crystal furnace; the wheel train mechanism at least comprises a driving wheel and a driven wheel, and the driving wheel and the driven wheel rotate around the vertical axis relative to the support. The diamond wire is arranged on the wheel train mechanism in a surrounding mode, and under the condition that the positioning part abuts against the horizontal positioning face, the diamond wire can be not lower than the top face of the heat preservation barrel. The motor is used for driving the driving wheel to rotate so as to drive the diamond wire to move, and the diamond wire can cut the heat preservation felt. According to the cutting device, the diamond wire is used for cutting the heat preservation felt, the heat preservation felt is not prone to deformation in the cutting process, the matching relation of the positioning part and the horizontal positioning face can play a limiting role, it is guaranteed that the cutting part is always located at the same height level in the cutting process, the edge of the cut heat preservation felt is neat, and the cutting efficiency is improved. And therefore, the adjacent heat preservation felts are tightly butted.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cells, in particular to a cutting device. Background Art

[0002] At present, in the field of solar cell technology, single crystal silicon rods are usually used to make silicon wafers. Most of the single crystal silicon rods are produced by the Czochralski method (also known as the Czochralski method). This method is to heat the polycrystalline silicon raw material to melt the polycrystalline silicon raw material, and then put in the seed crystal for crystal growth. It can be understood that the structure used to generate a thermal field in the single crystal furnace to create a Czochralski production process environment includes a heating system and a thermal insulation system. The thermal insulation system is specifically provided with a plurality of thermal insulation cylinders, and the thermal insulation cylinders are also wrapped with thermal insulation felt. The plurality of thermal insulation cylinders are stacked in sequence in the vertical direction, and the thermal insulation system plays a role of thermal insulation to maintain the stability of the thermal field.

[0003] After the insulation felt is wrapped around the outside of the insulation tube, it is necessary to manually operate the blade to cut the insulation felt so that the insulation felts outside two adjacent insulation tubes can be butted together.

[0004] In this way, the edges of the insulation felt are prone to being uneven, resulting in poor insulation performance of the insulation system, which in turn affects the production yield of single crystal silicon rods. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art and proposes a cutting device.

[0006] In order to achieve the purpose of the utility model, a cutting device is provided, which is used for cutting the insulation felt of a single crystal furnace. The cutting device includes a bracket, a positioning part, a gear train mechanism, a diamond wire and a motor;

[0007] The positioning part is connected to the bracket, and the positioning part is used to abut against the horizontal positioning surface of the insulation cylinder of the single crystal furnace; the gear train mechanism is connected to the bracket, and the gear train mechanism at least includes a driving wheel and a driven wheel, and the driving wheel and the driven wheel can rotate around the vertical axis relative to the bracket;

[0008] The diamond wire is arranged on the wheel train mechanism, and when the positioning part is in contact with the horizontal positioning surface, the diamond wire can be no lower than the top surface of the insulation tube; the motor is arranged on the bracket, and the motor is used to drive the driving wheel to rotate to drive the diamond wire to move, so that the diamond wire can cut the insulation felt.

[0009] The cutting device as described above, wherein the cutting device further comprises a tensioning wheel, which is rotatably arranged on the bracket and can rotate around a vertical axis relative to the bracket, the tensioning wheel abuts against the diamond wire, and the tensioning wheel is used to tension the diamond wire.

[0010] The cutting device as described above, wherein the cutting device also includes a tension sensor, a display device and a horizontal adjustment device arranged on the bracket; the tension sensor is in contact with the diamond wire and is used to detect the tension of the diamond wire; the display device is used to display the tension value of the diamond wire detected by the tension sensor; the horizontal adjustment device is connected to the axle of the tensioning wheel, and the horizontal adjustment device is used to drive the axle to move in the horizontal direction to adjust the tension of the diamond wire.

[0011] The cutting device as described above, wherein the cutting device also includes two platforms, the driving wheel and the motor are arranged on the same platform, the driving wheel and the driven wheel are arranged on two platforms respectively, and the tensioning wheel and the horizontal adjustment device are arranged on any platform; the two platforms can reciprocate and translate in the vertical direction relative to the bracket.

[0012] In the cutting device as described above, the bracket includes two arms arranged opposite to each other and a crossbeam connecting the two arms, a slide groove is provided on the arm, the slide groove extends in a vertical direction, and the two platforms slide in cooperation with the slide grooves of the two arms in a one-to-one correspondence.

[0013] In the cutting device as described above, the horizontal adjustment device comprises a first knob and a first screw, the first knob can rotate around a horizontal axis relative to the bracket, and the axle of the tensioning wheel is mounted on and matched with the first screw.

[0014] In the cutting device as described above, a avoidance groove is also provided on the support arm corresponding to the platform on which the tensioning wheel is arranged. The avoidance groove extends in a vertical direction and is connected with the slide groove on the support arm, and the first lead screw is passed through the avoidance groove.

[0015] The cutting device as described above, wherein the cutting device further comprises two lifting devices corresponding to the two platforms one by one, and the lifting devices can drive the corresponding platforms to reciprocate and translate in the vertical direction.

[0016] In the cutting device as described above, the lifting device comprises a second knob and a second lead screw, the second knob can rotate around a vertical axis relative to the bracket, and the platform is sleeved on the second lead screw of the corresponding lifting device and cooperates with the second lead screw.

[0017] In the cutting device as described above, the wheel train mechanism further includes a guide wheel, which can rotate around a vertical axis relative to the bracket, and the diamond wire is arranged around the driving wheel, the driven wheel and the guide wheel, and the guide wheel is used to guide the diamond wire to change direction.

[0018] The cutting device as described above, wherein the cutting device also includes a guide slide connected to the bracket, the guide slide is used to abut against the circumferential side of the insulation tube; and / or, the bracket is also provided with a first handle and a second handle, the first handle and the second handle are symmetrically arranged about the center line of the bracket.

[0019] The utility model has the following beneficial effects:

[0020] The cutting device provided in this embodiment is designed with diamond wire, and the method of cutting the thermal insulation felt is wire cutting. The contact area between the diamond wire and the thermal insulation felt is small. During the cutting process, the thermal insulation felt is not easy to move along the cutting direction with the diamond wire, and the thermal insulation felt is not easy to deform. Moreover, when using the cutting device provided in this embodiment to cut the thermal insulation felt, it is only necessary to operate the positioning part of the cutting device to abut against the horizontal positioning surface, and operate the cutting device to rotate one circle while keeping the positioning part abutting against the horizontal positioning surface. The matching relationship between the positioning part and the horizontal positioning surface can guide the cutting device to rotate in the horizontal direction, which is conducive to ensuring that the diamond wire can cut the thermal insulation felt horizontally, ensuring the flatness of the top surface of the thermal insulation felt after cutting, and thus making the edges of the thermal insulation felt neat after cutting.

[0021] The splicing effect of the insulation felt cut in this way and the insulation felt outside the adjacent insulation tube is improved, which is conducive to reducing or even eliminating the adverse effects of the uneven edges of the insulation felt on the uniformity of the temperature distribution of the thermal field, thereby helping to ensure the yield of semiconductor production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional schematic diagram of a cutting device provided in one embodiment of the present application;

[0023] Figure 2 A cross-sectional view of a cutting device provided in one embodiment of the present application;

[0024] Figure 3 A schematic diagram of an application scenario of a cutting device provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of applying the thermal insulation felt cut by the cutting device provided in one embodiment of the present application to a single crystal furnace;

[0026] Figure 5 A schematic diagram of an application scenario of a cutting device provided in another embodiment of the present application.

[0027] Description of reference numerals:

[0028] 100- cutting device;

[0029] 10-bracket; 11-support arm; 111-avoidance groove; 12-crossbeam; 13-fixed column; 14-cantilever;

[0030] 15-guide ring; 16-mounting seat;

[0031] 20- positioning part;

[0032] 31- diamond wire; 310A, 310B- cutting wire segments;

[0033] 40-motor; 41-driving wheel; 42-driven wheel; 43-tensioning wheel; 44-tension sensor;

[0034] 45-guide wheel;

[0035] 50- first knob;

[0036] 60, 61-lifting device; 610-second knob; 620-second lead screw; 630-bearing;

[0037] 70, 71-Platform;

[0038] 80-first in command; 81-second in command;

[0039] 200, 200a-heat-insulating tube; 210-step surface;

[0040] 300-Insulation felt;

[0041] 400 - Support ring. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the cutting device provided by the present invention is described in detail below in conjunction with the accompanying drawings.

[0043] The present application provides a cutting device for assisting in cutting the insulation felt of a single crystal furnace. Figure 1 and Figure 2 , Figure 1 This is a three-dimensional schematic diagram of a cutting device provided in an embodiment of the present application. Figure 2 This is a cross-sectional view of a cutting device provided in an embodiment of the present application. The cutting device 100 specifically includes a bracket 10, a diamond wire 31, and a gear train mechanism and a motor 40 disposed on the bracket 10. The gear train mechanism includes at least a driving wheel 41 and a driven wheel 42. The driving wheel 41 and the driven wheel 42 can rotate around a vertical axis relative to the bracket 10. There is a gap between the centers of the driving wheel 41 and the driven wheel 42 in the horizontal direction, and the straight-line distance between the center of the driving wheel 41 and the center of the driven wheel 42 is greater than or equal to the thickness d of the thermal insulation felt.

[0044] The diamond wire 31 is arranged around the gear train mechanism. Specifically, the diamond wire 31 is in a closed ring shape, and is arranged around the driving wheel 41 and the driven wheel 42, and the diamond wire 31 is parallel to the horizontal plane. The motor 40 is used to drive the driving wheel 41 to rotate, so as to drive the diamond wire 31 to move, and the diamond wire 31 drives the driven wheel 42 to move.

[0045] In addition, the cutting device 100 further includes a positioning portion 20, which is connected to the bracket 10 and is used to abut against the horizontal positioning surface of the heat preservation tube 200. The height of the plane of the diamond wire 31 and the positioning portion 20 abutting against the horizontal positioning surface along the vertical direction is H, and H≧0mm. When the positioning portion 20 abuts against the horizontal positioning surface, the vertical distance between the diamond wire 31 and the horizontal positioning surface is also H.

[0046] As an optional method, the horizontal positioning surface may specifically refer to the top surface of the heat preservation tube 200. Figure 3 , Figure 3 This is a schematic diagram of an application scenario of the cutting device 100 provided in one embodiment of the present application. An exemplary working process of using the cutting device 100 of this embodiment to cut the thermal insulation felt 300 is as follows:

[0047] After wrapping the insulation felt 300 outside the insulation tube 200, the operator can operate the cutting device 100 to move to the top of the insulation tube 200, and align the positioning portion 20 with the horizontal positioning surface (i.e., the top surface) of the insulation tube 200, so that one of the driving wheel 41 and the driven wheel 42 is located on the inner side of the insulation felt 300 and the other is located on the outer side of the insulation felt 300, so that the effective cutting length L1 of the diamond wire 31 is greater than the thickness d of the insulation felt 300;

[0048] Turn on the motor 40, and the diamond wire 31 moves;

[0049] The operator then operates the cutting device 100 to move vertically downward, so that the diamond wire 31 cuts from the upper edge of the thermal insulation felt 300 to the inside of the thermal insulation felt 300 in the vertical direction;

[0050] The cutting device 100 is continuously operated to move downward until the positioning portion 20 abuts against the horizontal positioning surface (i.e., the top surface of the heat preservation tube 200); since H≧0mm, the diamond wire 31 is not lower than the top surface of the heat preservation tube 200 at this time, that is, the diamond wire 31 is flush with the top surface of the heat preservation tube 200 or higher than the top surface of the heat preservation tube 200;

[0051] Then operate the cutting device 100 to rotate around the center line of the heat preservation tube 200 for one circle, and in this process, always keep the positioning part 20 in contact with the horizontal positioning surface (i.e., the top surface of the heat preservation tube 200), so that the diamond wire 31 can cut off the part of the heat preservation felt 300 that exceeds the diamond wire 31 when the positioning part 20 contacts the top surface of the heat preservation tube 200;

[0052] Then, the cutting device 100 is closed and removed from the heat preservation tube 200 ; and then the cut heat preservation felt 300 is cleaned.

[0053] As another optional method, the horizontal positioning surface can be another horizontal surface on the heat preservation tube 200. Figure 4 , Figure 4 This is a schematic diagram of the application of the thermal insulation felt 300 obtained by cutting with the cutting device 100 provided in one embodiment of the present application to a single crystal furnace. A support ring 400 may be provided between any two adjacent thermal insulation cylinders 200. In order to carry the support ring 400, the inner diameter of the part of the cylinder section close to the top surface of the lower one of the two adjacent thermal insulation cylinders 200 (for example, the thermal insulation cylinder 200a) may be larger than the inner diameter of the other cylinder sections, and a step surface 210 is formed on the thermal insulation cylinder 200a, and the step surface 210 is in contact with the bottom surface of the support ring 400, and the top surface of the support ring 400 may be flush with the top surface of the thermal insulation cylinder 200a.

[0054] See also Figure 5 , Figure 5 A schematic diagram of an application scenario of a cutting device 100 provided in another embodiment of the present application, when the cutting device 100 of this embodiment is used to cut the thermal insulation felt 300, the cutting device 100 can be operated to make the positioning portion 20 abut against the horizontal positioning surface (i.e., the step surface 210) of the thermal insulation tube 200a, and then the cutting device 100 is operated to rotate one circle in the horizontal direction, and during this process, the positioning portion 20 is always kept abutting against the horizontal positioning surface (i.e., the step surface 210) of the thermal insulation tube 200a, so that the diamond wire 31 can cut off the portion of the thermal insulation felt 300 that exceeds the diamond wire 31 when the positioning portion 20 contacts the step surface 210 of the thermal insulation tube 200a.

[0055] In general, if H=0mm, when the positioning portion 20 contacts the horizontal positioning surface, the diamond wire 31 is flush with the top surface of the heat preservation tube 200, so that the portion of the heat preservation felt 300 that exceeds the top surface of the heat preservation tube 200 can be cut off. Alternatively, if H>0mm, when the positioning portion 20 contacts the horizontal positioning surface, the diamond wire 31 is higher than the top surface of the heat preservation tube 200, so that the heat preservation felt 300 that exceeds the diamond wire 31 can be cut off.

[0056] Since the thermal insulation felt 300 is a soft felt, when the thermal insulation felt 300 is cut by manually operating the cutter, the thermal insulation felt 300 is easily deformed, resulting in an uneven cut surface. The cutting device 100 provided in this embodiment is designed with a diamond wire 31, and the method of cutting the thermal insulation felt 300 is wire cutting. The contact area between the diamond wire 31 and the thermal insulation felt 300 is small. During the cutting process, the thermal insulation felt 300 is not easy to move along the cutting direction with the diamond wire 31, and the thermal insulation felt 300 is not easy to deform. Moreover, when using the cutting device 100 provided in this embodiment to cut the thermal insulation felt 300, it is only necessary to operate the positioning part 20 of the cutting device 100 to abut against the horizontal positioning surface, and operate the cutting device 100 to rotate one circle while keeping the positioning part 20 abutting against the horizontal positioning surface. The cooperation between the positioning portion 20 and the horizontal positioning surface can guide the cutting device 100 to rotate in the horizontal direction, which is conducive to ensuring that the diamond wire 31 can horizontally cut the insulation felt 300, ensuring the flatness of the top surface of the insulation felt 300 after cutting, and thus making the edges of the insulation felt 300 after cutting neat.

[0057] In summary, the splicing effect of the insulation felt 300 cut by the cutting device 100 and the insulation felt 300 outside the adjacent insulation tube 200 is improved, which is beneficial to ensure that the insulation felt 300 outside two adjacent insulation tubes 200 are tightly fitted, so as to reduce or even eliminate the adverse effects of the uneven edges of the insulation felt 300 on the uniformity of the temperature distribution of the thermal field, thereby helping to ensure the yield of semiconductor production.

[0058] In some embodiments, please refer to Figure 2 The cutting device 100 further includes a tensioning wheel 43, which is rotatably disposed on the bracket 10 and can rotate relative to the bracket 10 around a vertical axis. The tensioning wheel 43 abuts against the diamond wire 31, and the tensioning wheel 43 is used to tension the diamond wire 31. By designing the tensioning wheel 43, the diamond wire 31 is tensioned to have a certain tension, so that the cutting effect of the diamond wire 31 can be ensured, so that the top surface of the cut thermal insulation felt 300 has a good flatness, and the edges of the cut thermal insulation felt 300 are neat.

[0059] As a further optional embodiment, the cutting device 100 may further include a tension sensor 44, a display device, and a horizontal adjustment device disposed on the bracket 10. The tension sensor 44 is in contact with the diamond wire 31 to detect the tension of the diamond wire 31, the display device is used to display the tension value of the diamond wire 31 detected by the tension sensor 44, and the horizontal adjustment device is connected to the axle of the tension wheel 43, and the horizontal adjustment device is used to drive the axle to move in the horizontal direction to adjust the tension of the diamond wire 31. Figure 2 As shown, the tension sensor 44 mentioned in the present application can be specifically implemented as a pulley-type tension sensor, and the diamond wire 31 is wound around the pulley-type tension sensor.

[0060] Before using the cutting device 100 of this embodiment to cut the thermal insulation felt 300, the operator can obtain the tension value of the diamond wire 31 based on the display information of the display device, and accordingly adjust the tension of the diamond wire 31 through the horizontal adjustment device so that the tension of the diamond wire 31 reaches the tension standard and the tension of the diamond wire 31 can be suitable for cutting the thermal insulation felt 300 of the corresponding material. This not only effectively ensures the cutting effect of the diamond wire 31, but also helps to prevent the diamond wire 31 from breaking due to excessive tension.

[0061] Please combine Figures 1 to 3 , Figure 5 The cutting device 100 further includes two platforms 70 and 71. The driving wheel 41 and the motor 40 are arranged on the same platform. The driving wheel 41 and the driven wheel 42 are arranged on the two platforms 70 and 71 respectively. The tension wheel 43 and the horizontal adjustment device are arranged on any one of the platforms 70 and 71. The tension sensor 44 can also be arranged on any one of the two platforms 70 and 71. In addition, the two platforms 70 and 71 can reciprocate in the vertical direction relative to the bracket 10.

[0062] It is understandable that if Figure 5 As shown, the two platforms 70 and 71 can be connected to the same lifting device 60. Under the drive of the lifting device 60, the two platforms 70 and 71 are raised and lowered synchronously. Specifically, the two platforms 70 and 71 are connected to the mounting seat 16. The lifting device 60 is used to drive the mounting seat 16 to move back and forth in the vertical direction to drive the two platforms 70 and 71 to rise or fall simultaneously. Or, as Figure 1 and Figure 3 As shown, the two platforms 70, 71 are connected to the two lifting devices 60, 61 in a one-to-one transmission manner. The lifting device 60 or 61 can drive the corresponding platform 70 or 71 to reciprocate in the vertical direction, and the two platforms 70, 71 can be raised and lowered respectively.

[0063] In the example where the two platforms 70 and 71 can be connected to the same lifting device 60 by transmission, the two platforms 70 and 71 are flush with each other so that the diamond wire 31 can be parallel to the horizontal plane. The two platforms 70 and 71 as a whole can be switched between the first process position and the second process position. The first process position is below the second process position. In the first process position, the height H of the plane of the diamond wire 31 and the positioning part 20 used to abut the horizontal positioning surface along the vertical direction is a first height H1, H1 is less than or equal to 0mm, and in the second process position, the height of the plane of the diamond wire 31 and the positioning part 20 used to abut the horizontal positioning surface along the vertical direction is a second height H2, H1 is less than or equal to 0mm.<H2,H2> H2 can be, for example, 120 mm.

[0064] Taking H1=0mm as an example, the cutting device 100 is placed on the insulation tube 200 and the positioning portion 20 is in contact with the horizontal positioning surface. When the two platforms 70 and 71 are in the first process position, the diamond wire 31 is flush with the top surface of the insulation tube 200. At this time, by operating the cutting device 100 to rotate around the central axis of the insulation tube 200 for one circle, the part of the insulation felt 300 that exceeds the top surface of the insulation tube 200 can be cut.

[0065] Taking H1<0mm as an example, the cutting device 100 is placed on the insulation tube 200 and the positioning part 20 is in contact with the horizontal positioning surface. When the two platforms 70 and 71 are located at the first process position, the diamond wire 31 is lower than the top surface of the insulation tube 200. At this time, the two platforms 70 and 71 can be controlled by the lifting device 60 to move from the first process position to the second process position to adjust H to greater than or equal to 0mm, so that the diamond wire 31 is not lower than the top surface of the insulation tube 200 to achieve cutting of the insulation felt 300.

[0066] When the cutting device 100 is placed on the insulation tube 200 and the positioning part 20 is in contact with the horizontal positioning surface, if the height H of the plane of the diamond wire 31 and the positioning part 20 in contact with the horizontal positioning surface in the vertical direction is greater than 0 mm, then after the cutting device 100 is operated to rotate around the central axis of the insulation tube 200 for one circle, the height h1 of the insulation felt 300 after being cut is greater than the height h2 of the insulation tube 200 wrapped by it, and h1-h2=H. It can be seen that the height H of the plane of the diamond wire 31 and the positioning part 20 in contact with the horizontal positioning surface in the vertical direction is adjustable, that is, the distance between the diamond wire 31 and the top surface of the insulation tube 200 in the vertical direction is adjustable. In this way, when the cutting device 100 provided in this embodiment is used to cut the thermal insulation felt 300, on the basis of ensuring that the thermal insulation felt 300 is cut neatly, the thermal insulation felt 300 can also be cut at a specified height position, so that the upper edge of the cut thermal insulation felt 300 can be flush with the top surface of the corresponding thermal insulation tube 200 or higher than the top surface of the corresponding thermal insulation tube 200. Figure 4 When the upper edge of the cut insulation felt 300 is higher than the top surface of the corresponding insulation tube 200, the portion of the insulation felt 300 that is higher than the insulation tube 200 can reserve an installation position for other components of the single crystal furnace (for example, the support ring 400).

[0067] In the example where the two platforms 70, 71 are connected to the two lifting devices 60, 61 in a one-to-one transmission connection, the two platforms 70, 71 can switch between the first process position and the second process position. During the application of the cutting device 100, the lifting heights of the two platforms 70, 71 can be kept the same so that the diamond wire 31 is parallel to the horizontal plane, and the diamond wire 31 can horizontally cut the thermal insulation felt 300. It should be pointed out that when the cutting device 100 provided in this embodiment is used to cut the thermal insulation felt 300, under the premise of ensuring that the diamond wire 31 will not detach from the gear train mechanism, the lifting heights of the two platforms 70, 71 can be different by controlling the two lifting devices 60, 61, so that the diamond wire 31 is inclined to the horizontal plane, and the top surface of the thermal insulation felt 300 after being cut is correspondingly an inclined surface. Since the matching relationship between the positioning portion 20 and the horizontal positioning surface plays a limiting role, the flatness of the inclined surface can still be ensured.

[0068] The specific structure of the cutting device 100 will be described in detail below. The bracket 10 mentioned in the present application can be implemented as a plate-shaped structure, a rod-shaped structure, a columnar structure or other structures.

[0069] In some embodiments, please refer to Figure 1 The bracket 10 includes two arms 11 arranged opposite to each other and a crossbeam 12 connecting the two arms 11. The arms 11 are provided with a slide groove extending in the vertical direction. The two platforms 70 and 71 slide in correspondence with the slide grooves of the two arms 11. With this design, on the one hand, the slide groove can guide the corresponding platform to slide in the vertical direction, thereby ensuring that the platform can be lifted and lowered smoothly. On the other hand, the arms 11 can support the corresponding platform.

[0070] For example, the two arms 11 can be connected to the two ends of the beam 12 respectively, and the length L2 of the beam 12 is preferably 400 mm, then the distance between the two arms 11 is 400 mm, so that the distance between the center of the driving wheel 41 and the center of the driven wheel 42 in the horizontal direction is large, so that the effective cutting length L1 of the diamond wire 31 wound around the driving wheel 41 and the driven wheel 42 is large. In this way, the cutting device 100 can be applied to cutting thicker thermal insulation felt 300, so that the cutting device 100 can meet various application scenarios.

[0071] The level adjustment device mentioned in the present application can be implemented as any one of electric push rods, hydraulic push rods or linear actuators such as cylinders. For example, when the level adjustment device is a cylinder, the cylinder seat of the cylinder can be fixedly arranged on the corresponding platform so that the level adjustment device can be stably installed.

[0072] In a feasible example, the horizontal adjustment device can also be implemented to include a first knob 50 and a transmission device (not shown), the first knob 50 can rotate around the horizontal axis relative to the bracket 10, and the transmission device can convert the rotational power into a linear power and transmit it to the axle of the tensioning wheel 43. The transmission device can be implemented by a screw nut mechanism and a gear rack mechanism.

[0073] In the embodiment where the transmission device is implemented as a screw-nut mechanism, the transmission device may specifically include a first screw, the first screw extends in the horizontal direction, the axle of the tension wheel 43 is mounted on the first screw and cooperates with the first screw, and when the first screw rotates around the horizontal axis, the axle of the tension wheel 43 moves in the horizontal direction accordingly. When the cutting device 100 of this embodiment is used to cut the thermal insulation felt 300, when the tension of the diamond wire 31 does not reach the tension standard, the operator can turn the first knob 50 to move the tension wheel 43 in the horizontal direction to adjust the degree of compression of the tension wheel 43 on the diamond wire 31, thereby adjusting the tension of the diamond wire 31.

[0074] Among them, the platform 70 or 71 where the tension wheel 43 is located can also be protrudingly provided with a first mounting frame and a second mounting frame (not shown in the figure), and the two ends of the first lead screw along its extension direction can be respectively mounted on the first mounting frame and the second mounting frame through bearings 630 and can rotate around the horizontal axis relative to the first mounting frame and the second mounting frame, and the tension wheel 43 is located between the first mounting frame and the second mounting frame. In this way, the first mounting frame and the second mounting frame play a supporting role for the horizontal adjustment device to ensure that the horizontal adjustment device can be stably installed on the corresponding platform 70 or 71.

[0075] For further information, please refer to Figure 1 In the embodiment in which the support 10 is provided with two arms 11 and the arms 11 are provided with a slide groove that is slidably matched with the corresponding platform, the arm 11 corresponding to the platform where the tension wheel 43 is located is also provided with an avoidance groove 111, which extends in the vertical direction and is connected with the slide groove on the arm 11, and the first lead screw is inserted into the avoidance groove 111. With this design, when the lifting device 60 drives the platform to rise and fall in the vertical direction, the first lead screw can rise and fall in the avoidance groove 111 with the corresponding platform, so as to avoid interference between the horizontal adjustment device and the support 10 during the platform lifting process, so as to ensure that the tension wheel 43 can move horizontally while the platform where the tension wheel 43 is located can be lifted and lowered.

[0076] The lifting device 60 mentioned in the present application can be specifically implemented as any one of linear actuators such as an electric push rod, a hydraulic push rod or a cylinder.

[0077] exist Figure 1 and Figure 3In the example shown, any lifting device 60, 61 can also be implemented to include a second knob 610 and a second lead screw 620, the second knob 610 can rotate relative to the bracket 10 around the vertical axis, the platform is mounted on the second lead screw 620 of the corresponding lifting device 60 and cooperates with the second lead screw 620, when the second lead screw 620 rotates around the vertical axis, the corresponding platform moves along the vertical direction. When the cutting device 100 of this embodiment is used to cut the thermal insulation felt 300, the operator can turn the second knob 610 to make the corresponding platform rise and fall between the first process position and the second process position, and then adjust the height H of the plane of the diamond wire 31 and the positioning part 20 for abutting the horizontal positioning surface in the vertical direction, that is, the distance between the diamond wire 31 and the top surface of the thermal insulation cylinder 200 can be adjusted. The above-mentioned second knob 610 can be specifically implemented as a knob with a scale. In this way, in actual application, the operator can turn the two second knobs 610 to the same scale to make the lifting heights of the two platforms 70 and 71 the same, thereby making the diamond wire 31 in a horizontal state, so as to be able to cut the insulation felt 300 horizontally.

[0078] In the embodiment in which the bracket 10 is provided with two arms 11, the arms 11 are provided with a slide groove for slidingly cooperating with the corresponding platform, please combine Figure 2 and Figure 3 , the second lead screw 620 can be specifically arranged in the corresponding slide groove, the bottom end of the second lead screw 620 is connected to the corresponding support arm 11 through the bearing 630 and can rotate relative to the support arm 11 around the vertical axis, and the top end of the second lead screw 620 can also be connected to the crossbeam 12 through the bearing 630 and can rotate relative to the crossbeam 12 around the vertical axis, so that the second lead screw 620 is stably installed. In other achievable ways, the bottom end of the support arm 11 is protrudingly provided with a flange, the second lead screw 620 can be located outside the support arm 11, and the bottom end of the second lead screw 620 is rotatably connected to the flange on the corresponding support arm 11. In contrast, when the second lead screw 620 is arranged in the corresponding slide groove, the second lead screw 620 does not need to occupy other space.

[0079] In some embodiments, please refer to Figure 2 The cutting device 100 further includes a guide wheel 45 , which can rotate around a vertical axis relative to the bracket 10 . The diamond wire 31 is wound around the guide wheel 45 , the driving wheel 41 and the driven wheel 42 at the same time. The guide wheel 45 is used to change the extension direction of the diamond wire 31 .

[0080] according to Figure 2In the specific example shown, two guide wheels 45 are provided, and the centers of the two guide wheels 45 and the centers of the two winding wheels are distributed in a rectangular shape. With such a design, the diamond wire 31 in a closed ring shape has two cutting segments 310A and 310B, and the two cutting segments 310A and 310B are spaced apart and parallel to each other in the horizontal direction. When the cutting device 100 of this embodiment is in use, the operator can operate the cutting device 100 to rotate in the first direction to use the cutting segment 310A to cut the thermal insulation felt 300, and the cutting segment 310B can grind the top surface of the thermal insulation felt 300 after cutting, and further make the edge of the thermal insulation felt 300 neat. Alternatively, the operator can also operate the cutting device 100 to rotate in the second direction to use the cutting segment 310B to cut the thermal insulation felt 300, and the cutting segment 310A can grind the top surface of the thermal insulation felt 300 after cutting, and further make the edge of the thermal insulation felt 300 neat. One of the first direction and the second direction is a clockwise direction, and the other is a counterclockwise direction.

[0081] Of course, the number of guide wheels 45 is not limited to the above number, and can be specifically designed according to demand and actual working conditions. For example, the guide wheel 45 can be provided with one, and the centers of the driving wheel 41, the driven wheel 42 and the guide wheel 45 are distributed in a triangle.

[0082] The positioning portion 20 mentioned above can be specifically Figure 5 The slider shown or Figure 1 The cutting device 100 further includes a cantilever 14, one end of which is connected to the bracket 10 and the other end is a free end, and the roller is rotatably connected to the other end of the cantilever 14. When the cutting device 100 is used to cut the thermal insulation felt 300, during the process of the cutting device 100 rotating around the center line of the thermal insulation cylinder 200, the roller not only abuts against the horizontal positioning surface, but also can rotate around the horizontal axis relative to the cantilever 14. By using the roller, the friction between the roller and the horizontal positioning surface is rolling friction, which is smaller than the sliding friction, which is conducive to ensuring that the cutting device 100 can rotate smoothly, and further conducive to ensuring smooth cutting of the thermal insulation felt 300.

[0083] The number of positioning parts 20 (eg, rollers) is not limited. Figure 1 In the embodiment, two positioning parts 20 (eg rollers) are provided, and in this case, two cantilevers 14 are provided accordingly. In this example, the surfaces of the two positioning parts 20 used to abut against the horizontal positioning surface are located on the same horizontal plane to ensure that both positioning parts 20 can abut against the horizontal positioning surface.

[0084] In some embodiments, Figure 1 and Figure 3As shown, the cutting device 100 also includes a guide slide portion connected to the bracket 10, and the guide slide portion is used to abut against the circumferential side of the insulation tube 200. When the cutting device 100 provided in this embodiment is used to cut the insulation felt 300, by operating the cutting device 100, the guide slide portion can be moved along the circumferential side of the insulation tube 200, and then it can be ensured that the cutting device 100 can rotate around the center line of the insulation tube 200 to cut off part of the insulation felt 300. In this way, the abutment relationship between the guide slide portion and the circumferential side of the insulation tube 200 plays a guiding role, and the operator can conveniently and accurately operate the cutting device 100 to rotate around the center line of the insulation tube 200, and the cutting efficiency is correspondingly improved.

[0085] Similar to the positioning part 20, the guide part mentioned in this article can be implemented as a slider or a roller. Figure 1 In the specific example shown, the guide portion can also be a guide ring 15. When the bracket 10 is provided with two arms 11, a fixing column 13 is protruding from the bottom end of one of the arms 11. The fixing column 13 extends in the vertical direction, and the guide ring 15 is sleeved on the fixing column 13. Figure 3 When the cutting device 100 provided in this embodiment is used to cut the insulation felt 300 wrapped on the outside of the insulation tube 200, the operator can operate the cutting device 100 to move vertically downward so that the fixing column 13 extends into the insulation tube 200, so that the guide ring 15 abuts against the inner wall surface of the insulation tube 200. Of course, in an embodiment not shown in the figure, the insulation felt 300 can also be nested in the insulation tube 200 and fit with the inner wall surface of the insulation tube 200. At this time, the circumferential side surface of the insulation tube 200 specifically refers to the outer wall surface of the insulation tube 200, and the guide slide is located outside the insulation tube 200 to fit with the outer wall surface of the insulation tube 200.

[0086] The number of guide slides (eg, guide rings 15) is also non-limiting. Figure 1 In the embodiment, two guide slide parts (eg, guide rings 15) are provided. At this time, the two guide rings 15 are sequentially sleeved on the fixing column 13 along the vertical direction.

[0087] Please continue to refer to Figure 1 and Figure 3, the bracket 10 may also be provided with a first handle 80 and a second handle 81, and the first handle 80 and the second handle 81 are symmetrically arranged about the center line of the bracket 10. Specifically, in the embodiment in which the bracket 10 includes a crossbeam 12 and two arms 11, the first handle 80 and the second handle 81 are respectively connected to the sides of the two arms 11 that are away from each other. When the cutting device 100 provided in this embodiment is used to cut the insulation felt 300 wrapped on the outside of the insulation tube 200, the operator can grasp the first handle 80 and the second handle 81 at the same time to operate the cutting device 100 to rotate around the center line of the insulation tube 200. Since the first handle 80 and the second handle 81 are symmetrically arranged about the center line of the bracket 10, it is conducive to ensuring that the cutting device 100 can maintain balance during the rotation of the cutting device 100, thereby ensuring that the cutting part can horizontally cut the insulation felt 300, thereby ensuring the flatness of the top surface of the insulation felt 300 after cutting.

[0088] The first handle 80 and the second handle 81 mentioned in the present application can be specifically implemented as Figure 1 As shown in the columnar structure or other structures, when the first handle 80 and the second handle 81 are columnar structures, the first handle 80 and the second handle 81 extend along the length direction of the beam 12 .

[0089] 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 cutting device, used for cutting the insulation felt of a single crystal furnace, characterized in that: include: Bracket; A positioning portion connected to the bracket, the positioning portion being used to abut against a horizontal positioning surface of the heat preservation tube of the single crystal furnace; A gear train mechanism connected to the bracket, the gear train mechanism comprising at least a driving wheel and a driven wheel, the driving wheel and the driven wheel being rotatable around a vertical axis relative to the bracket; A diamond wire is arranged on the wheel train mechanism in a loop, and when the positioning portion is in contact with the horizontal positioning surface, the diamond wire can be no lower than the top surface of the heat preservation cylinder; as well as A motor is arranged on the bracket, and the motor is used to drive the driving wheel to rotate, so as to drive the diamond wire to move, so that the diamond wire can cut the thermal insulation felt.

2. The cutting device according to claim 1, characterized in that: It also includes a tensioning wheel, which is rotatably arranged on the bracket and can rotate around a vertical axis relative to the bracket. The tensioning wheel abuts against the diamond wire and is used to tension the diamond wire.

3. The cutting device according to claim 2, characterized in that: It also includes a tension sensor, a display device and a level adjustment device arranged on the bracket; The tension sensor is in contact with the diamond wire and is used to detect the tension of the diamond wire; The display device is used to display the tension value of the diamond wire detected by the tension sensor; The horizontal adjustment device is connected to the axle of the tensioning wheel in a transmission manner, and is used to drive the axle to move in a horizontal direction to adjust the tension of the diamond wire.

4. The cutting device according to claim 3, characterized in that: It also includes two platforms, the driving wheel and the motor are arranged on the same platform, the driving wheel and the driven wheel are arranged on two platforms respectively, and the tensioning wheel and the horizontal adjustment device are arranged on any one platform; the two platforms can reciprocate and translate in the vertical direction relative to the bracket.

5. The cutting device according to claim 4, characterized in that: The bracket includes two supporting arms arranged opposite to each other and a crossbeam connecting the two supporting arms. The supporting arms are provided with sliding grooves extending in a vertical direction. The two platforms are slidably matched with the sliding grooves of the two supporting arms in a one-to-one correspondence.

6. The cutting device according to claim 5, characterized in that: The horizontal adjustment device includes a first knob and a first screw. The first knob can rotate around a horizontal axis relative to the bracket. The axle of the tensioning wheel is sleeved on the first screw and cooperates with the first screw.

7. The cutting device according to claim 6, characterized in that: An avoidance groove is also provided on the support arm corresponding to the platform on which the tensioning wheel is arranged. The avoidance groove extends in a vertical direction and is connected with the slide groove on the support arm. The first lead screw is passed through the avoidance groove.

8. The cutting device according to claim 4, characterized in that: It also includes two lifting devices corresponding to the two platforms one by one, and the lifting devices can drive the corresponding platforms to reciprocate and translate in the vertical direction.

9. The cutting device according to claim 8, characterized in that: The lifting device comprises a second knob and a second lead screw, wherein the second knob can rotate around a vertical axis relative to the bracket, and the platform is sleeved on the second lead screw of the lifting device corresponding to the platform and cooperates with the second lead screw.

10. The cutting device according to claim 1, characterized in that: The wheel train mechanism also includes a guide wheel, which can rotate around a vertical axis relative to the bracket. The diamond wire is arranged around the driving wheel, the driven wheel and the guide wheel, and the guide wheel is used to guide the diamond wire to change direction.

11. The cutting device according to claim 1, characterized in that: It also includes a guide slide portion connected to the bracket, the guide slide portion is used to abut against the circumferential side surface of the heat preservation cylinder; and / or, The bracket is also provided with a first handle and a second handle, and the first handle and the second handle are symmetrically arranged about the center line of the bracket.

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