Online silicon wafer correction device

Abstract

This utility model provides an online silicon wafer straightening device, relating to the technical field of silicon wafer transfer devices. It includes: a conveying assembly, a support frame, a mounting plate, fastening bolts, a fixing block, and an elastic component. Support frames are arranged on both sides of the conveying assembly, and a mounting plate is supported at the top of the support frames. A movable groove is formed on the surface of the mounting plate. Fastening bolts pass through the movable groove and are threadedly connected to the fixing block. An installation groove is formed inside the fixing block, and the elastic component is disposed within the installation groove. This online silicon wafer straightening device solves the technical problem in the prior art where the silicon wafer is crushed or dented due to force on both sides when the cylindrical object moves towards the center to clamp the wafer. It achieves the technical effect of increasing the yield of silicon wafers during straightening.

Description

Technical Field

[0001] This utility model relates to the field of silicon wafer transfer device technology, and in particular to an online silicon wafer correction device. Background Technology

[0002] In the production process of silicon-based solar cells, silicon wafers need to be transferred and transported to achieve continuous production of solar cells. When silicon wafers are transported between different parts of the same machine, the position of the silicon wafers is prone to shift due to the vibration of the transport equipment itself and the collision between the silicon wafers. Since each part of the machine has high requirements for the positional accuracy of the silicon wafers, the position of the silicon wafers on the transport equipment needs to be rectified after a certain distance of transport.

[0003] The current device for positioning silicon wafers works by stopping the wafer on the conveyor belt when it reaches the desired position, while cylinders with positioning sleeves on both sides move inward simultaneously, pushing the wafer and fixing it in the center of the conveyor belt. The wafer is then transferred to the next conveyor belt.

[0004] When using cylinders to straighten silicon wafers, in order to ensure uniformity, the cylinders need to be placed as close as possible to the silicon wafers on the conveyor belt to avoid problems with improper wafer positioning. However, in the existing technology, if the cylinders with straightening sleeves move too far towards the center, due to the lack of sufficient elasticity or flexibility, the silicon wafers often become crushed or dented due to excessive force on both sides, affecting the yield of silicon wafers on the production line. Utility Model Content

[0005] The purpose of this invention is to provide an online silicon wafer straightening device to alleviate the technical problem in the prior art where the silicon wafer is crushed or dented due to the force on both sides when the cylindrical object moves towards the center to clamp the silicon wafer.

[0006] This utility model provides an online silicon wafer straightening device, comprising: a conveying assembly, a support frame, a mounting plate, fastening bolts, a fixing block, and an elastic component;

[0007] Support frames are arranged on both sides of the conveying component, and a mounting plate is supported at the top of the support frame. A moving groove is opened on the surface of the mounting plate. After the fastening bolt passes through the moving groove, it is threaded to the fixing block. An installation groove is opened inside the fixing block, and the elastic component is installed in the installation groove.

[0008] Furthermore, the conveying assembly includes a mounting frame, a driving wheel, a driven wheel, and a conveyor belt;

[0009] One end of the mounting frame is rotatably connected to the drive wheel via a rotating shaft, and the other end of the mounting frame is rotatably connected to the driven wheel via a rotating shaft. The drive wheel and the driven wheel are connected by a conveyor belt provided on the surface. The support frames are arranged on both sides of the mounting frame.

[0010] Furthermore, the mounting plate includes a lower mounting plate and an upper mounting plate arranged sequentially from bottom to top;

[0011] The lower mounting plate has a first sliding groove on its surface, and the upper mounting plate has a second sliding groove on its surface. The fastening bolt passes through the first sliding groove and the second sliding groove in sequence and is threaded to the fixing block. The first sliding groove is used to limit the movement of the fixing block in a first direction, and the second sliding groove is used to limit the movement of the fixing block in a second direction.

[0012] Furthermore, a fastening nut is provided between the fastening bolt, which passes through the moving groove, and the fixed block.

[0013] Furthermore, the elastic component includes a fixing part, a chamber, a metal spring, a stop part, and a spring;

[0014] The fixing part extends forward along the horizontal direction to form a cavity. A movable hole is opened at the top of the cavity. The metal spring is slidably inserted into the cavity through the movable hole. Both ends of the metal spring protrude laterally to form a stop. One end of the spring abuts against the metal spring, and the other end of the spring abuts against the fixing part. The fixing part is inserted into the mounting groove.

[0015] Furthermore, the outer edge of the metal shrapnel has a semi-circular cross-section.

[0016] Furthermore, the surface of the fixing part is provided with threaded holes corresponding to the fixing block, and the fastening bolt extends radially and passes through the threaded holes.

[0017] Furthermore, the surface of the fixing part is coated with epoxy resin adhesive, and the elastic component is bonded to the mounting groove through the fixing part.

[0018] Furthermore, the metal shrapnel is covered with a rubber layer.

[0019] Furthermore, the thickness of the metal spring is greater than or equal to the thickness of the silicon wafer.

[0020] Beneficial effects:

[0021] This utility model provides an online silicon wafer straightening device, including support frames arranged on the left and right sides of a conveying component; the support frames provide support for an elastic component, straightening the silicon wafer from its four corner edges; a mounting plate is supported at the top of the support frame, and a movable groove is formed on the surface of the mounting plate; the movable groove allows for fine adjustment of the distance between the elastic component and the silicon wafer, adapting to silicon wafers of different sizes and increasing versatility; a fastening bolt passes through the movable groove and is threadedly connected to a fixing block, the fixing block having an installation groove inside, and the elastic component is disposed within the installation groove; by setting the elastic component, the metal spring can push the silicon wafer without squeezing and breaking it or causing extrusion dents, thereby protecting the integrity of the silicon wafer while straightening its position.

[0022] This invention can be applied to silicon wafer production lines of different sizes, making it highly versatile. Furthermore, it can correct and push silicon wafers on the conveyor line from the four edges without squeezing them, allowing the wafers to move on the machine according to a predetermined pattern, thus greatly improving the yield of solar cell production lines. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of an online silicon wafer straightening device provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the elastic component in the correction device provided in the embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the fixing block in the correction device provided in the embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the support frame and mounting plate in the correction device provided in the embodiment of the present utility model;

[0028] Figure 5 A top view of the correction device provided in this embodiment of the utility model on the production line.

[0029] Icons: 100 - Conveyor assembly; 101 - Mounting bracket; 102 - Driven wheel; 103 - Driven wheel; 104 - Conveyor belt;

[0030] 200-Support frame;

[0031] 300 - Mounting plate; 301 - Moving groove; 302 - Lower mounting plate; 303 - Upper mounting plate; 304 - First sliding groove; 305 - Second sliding groove;

[0032] 400 - Fastening bolt; 401 - Fastening nut;

[0033] 500 - Fixing block; 501 - Mounting slot;

[0034] 600 - Elastic component; 601 - Fixing part; 602 - Chamber; 603 - Metal spring; 604 - Stopping part; 605 - Spring;

[0035] a - First direction; b - Second direction. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0043] like Figure 1 , Figure 5 As shown, this utility model provides an online silicon wafer straightening device, including: a conveying component 100, a support frame 200, a mounting plate 300, fastening bolts 400, a fixing block 500, and an elastic component 600;

[0044] Support frames 200 are arranged on both sides of the conveying component 100. The top of the support frame 200 supports the mounting plate 300. The surface of the mounting plate 300 has a moving groove 301. The fastening bolt 400 passes through the moving groove 301 and is threaded to the fixing block 500. The fixing block 500 has an installation groove 501 inside. An elastic component 600 is provided in the installation groove 501.

[0045] Specifically, the conveying assembly 100 is placed between two sets of conveyor belts or in front of the machine that needs to be corrected, providing conveying conditions for the silicon wafers; the support frame 200 includes a rectangular base and columns extending upward from the four right angles of the base, with the columns distributed in pairs on the left and right sides of the conveying assembly 100, so that the elastic component 600 can correct the silicon wafers on the conveying assembly 100 from the four edge corners.

[0046] Each of the four columns in the support frame 200 has a long, rectangular mounting plate 300 welded to its top. The mounting plate 300 has a rectangular or long, rectangular moving groove 301 on its surface. The moving groove 301 can be opened horizontally or perpendicularly to the transmission direction of the conveyor assembly 100. A fastening bolt 400 is threaded through the moving groove 301 and connected to a fixing block 500. This allows the fastening bolt 400 to slide back and forth or left and right within the moving groove 301, thus moving the fixing block 500. This accommodates silicon wafers of different sizes, eliminating the need to stop the conveyor belt and use a cylindrical silicone sleeve to align the silicon wafers, saving time and costs. When the silicon wafer size is large, the horizontal or vertical spacing of the four fixing blocks 500 can be increased by sliding the fastening bolt 400.

[0047] like Figure 3 As shown, the fixing block 500 has an internal mounting groove 501, and an elastic component 600 is disposed within the mounting groove 501. By providing the elastic component 600, the metal spring can push the silicon wafer from the four edges of the silicon wafer, and the silicon wafer is aligned by the rebound force of the elastic component 600, without squeezing and breaking the silicon wafer or causing extrusion dents, thereby protecting the integrity of the silicon wafer while correcting its position.

[0048] In an embodiment of this utility model, the conveying assembly 100 includes a mounting frame 101, a drive wheel 102, a driven wheel 103, and a conveyor belt 104; one end of the mounting frame 101 is rotatably connected to the drive wheel 102 via a rotating shaft, and the other end of the mounting frame 101 is rotatably connected to the driven wheel 103 via a rotating shaft. The drive wheel 102 and the driven wheel 103 are connected by a transmission belt 104 disposed on the surface, and support frames 200 are arranged on both sides of the mounting frame 101.

[0049] Specifically, one end of the mounting bracket 101 is rotatably connected to the drive wheel 102 via a shaft, and the other end is rotatably connected to the driven wheel 103 via a shaft. This ensures that the conveyor belt 104 runs smoothly between the drive wheel 102 and the driven wheel 103. The conveyor belt 104 is mounted on the surfaces of the drive wheel 102 and the driven wheel 103. The selection of the conveyor belt 104 should take into account the size and weight of the silicon wafers, as well as the friction and wear that may be encountered during transport. The width of the conveyor belt 104 should be wide enough to accommodate the largest silicon wafers, and its surface should be smooth to reduce contamination of the silicon wafers. The drive wheel 102 is connected to a motor that provides stable power.

[0050] In embodiments of this utility model, such as Figure 4As shown, the mounting plate 300 includes a lower mounting plate 302 and an upper mounting plate 303 arranged sequentially from bottom to top; the surface of the lower mounting plate 302 is provided with a first sliding groove 304, and the surface of the upper mounting plate 303 is provided with a second sliding groove 305. The fastening bolt 400 passes through the first sliding groove 304 and the second sliding groove 305 in sequence and is then threaded to connect to the fixing block 500. The first sliding groove 304 is used to limit the movement of the fixing block 500 along the first direction a, and the second sliding groove 305 is used to limit the movement of the fixing block 500 along the second direction b.

[0051] After the fastening bolt 400 passes through the moving groove 301, a fastening nut 401 is provided between it and the fixed block 500.

[0052] Specifically, the mounting plate 300 supported at the top of the support frame 200 includes a lower mounting plate 302 and an upper mounting plate 303 arranged sequentially from bottom to top; the lower mounting plate 302 is welded to the support frame 200, and a first sliding groove 304 is formed on the surface of the lower mounting plate 302 along the first direction a, that is, the direction perpendicular to the conveying assembly 100; an upper mounting plate 303 is provided at the top of the lower mounting plate 302, and the upper mounting plate 303 is perpendicular to the lower mounting plate 302, and the two are arranged in a cross shape; a second sliding groove 305 is formed on the surface of the upper mounting plate 303 along the second direction b, that is, the direction parallel to the conveying assembly 100; the fastening bolt 400 is a long bolt with a length of not less than 50 mm, and the fastening bolt 400 passes through the first sliding groove 304 and the second sliding groove 305 in sequence and is tightened with the fixing block 500. When different sizes of silicon wafers need to be corrected, the preload of the fastening bolt 400 is reduced so that the fixing block 500 can slide with the fastening bolt 400 in the first sliding groove 304, thereby adjusting the lateral spacing of the elastic component 600; when the fixing block 500 slides with the fastening bolt 400 in the second sliding groove 305, the longitudinal spacing of the elastic component 600 can be adjusted.

[0053] Specifically, a fastening nut 401 can be provided between the fastening bolt 400 and the fixed block 500 after the fastening bolt 400 passes through the moving groove 301, to increase the clamping force after the fastening bolt 400 passes through the first sliding groove 304 and the second sliding groove 305, and to prevent the fixed block 500 from shaking.

[0054] In embodiments of this utility model, such as Figure 2 As shown, the elastic component 600 includes a fixing part 601, a chamber 602, a metal spring 603, a stop part 604, and a spring 605;

[0055] The fixing part 601 extends forward along the horizontal direction to form a cavity 602. A movable hole is provided at the top of the cavity 602. The metal spring 603 slides into the cavity 602 through the movable hole. The two ends of the metal spring 603 extend laterally to form a stop part 604. One end of the spring 605 abuts against the metal spring 603, and the other end of the spring 605 abuts against the fixing part 601. The fixing part 601 is inserted into the mounting groove 501.

[0056] Specifically, the elastic component 600 includes a fixing part 601 that inserts into the mounting groove 501. The fixing part 601 can be elongated or other shapes to match the shape of the mounting groove 501. The fixing part 601 extends forward along its peripheral wall in the horizontal direction and folds back to form an open cavity 602. A spring 605 is placed inside the cavity 602. A movable hole is provided at the top of the cavity 602. A metal spring 603 slides into the cavity 602 through the movable hole, and the metal spring 603 can extend and retract within the cavity 602 by the spring 605. When the silicon wafer contacts the surface of the metal spring 603, the metal spring 603 retracts into the cavity 602, and the silicon wafer is corrected and positioned by the rebound force of the spring 605 without being crushed. The stop part 604 prevents the metal spring 603 from popping out of the cavity 602 and serves to limit its movement.

[0057] In one embodiment of this example, as Figure 2 As shown, the surface of the fixing part 601 has threaded holes corresponding to those of the fixing block 500. The fastening bolt 400 extends radially and passes through the threaded holes. When the fastening bolt 400 is tightened from the bottom, it passes through the fixing block 500 and is then tightened upwards until it passes through the threaded holes. Thus, the elastic component 600 is fixed by the fixing part 601. No other bolts or materials are needed; the two fastening bolts 400 can both provide a sliding function and fix the elastic component, saving costs.

[0058] In another embodiment of this invention (not shown in the accompanying drawings), the surface of the fixing part 601 is coated with epoxy resin adhesive. It should be noted that the surface of the fixing part 601 can also be coated with acrylic adhesive, silicone adhesive, or other adhesives suitable for bonding metal materials. The elastic component 600 is bonded to the mounting groove 501 via the fixing part 601. Bonding provides a uniform stress distribution and a large stress-bearing area, allowing the elastic component 600 to be integrated with the fixing block 500, facilitating assembly and disassembly during spacing adjustments.

[0059] In an embodiment of this invention, the outer edge cross-section of the metal spring 603 is semi-circular. The outer surface of the metal spring 603 is covered with a rubber layer. The thickness of the metal spring 603 is greater than or equal to the thickness of the silicon wafer.

[0060] Specifically, the semi-circular cross-section of the outer edge of the metal spring 603 and the rubber coating on its outer surface are both designed to ensure direct contact between the metal spring 603 and the silicon wafer, thus preventing damage to the silicon wafer and affecting the yield. Furthermore, the outer arc design and rubber coating of the metal spring 603 improve its wear resistance and fatigue resistance.

[0061] The thickness of the metal spring 603 is greater than or equal to the thickness of the silicon wafer. The thickness of the metal spring is generally between 0.05mm and 0.10mm to prevent the metal spring 603 from being too thin and failing to play a corrective role.

[0062] Based on the above embodiments, the working process of the online silicon wafer correction device provided by this utility model embodiment is as follows:

[0063] The conveying assembly 100 is placed between two sets of conveyor belts or in front of the machine that needs to be corrected for transmission, and the conveying assembly 100 is used to receive the silicon wafers that are conveyed; according to the size of the silicon wafers, tighten the fastening bolts 400 and adjust the longitudinal and transverse spacing between the elastic components 600.

[0064] When the silicon wafer comes into contact with the surface of the metal spring 603, the metal spring 603 retracts inward, and then the spring force of the spring 605 corrects and positions the silicon wafer in the correct position. This protects the silicon wafer from damage and ensures accurate positioning, thereby improving the yield rate of the production line.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An online silicon wafer correction device, characterized in that, include: The transmission assembly (100), support frame (200), mounting plate (300), fastening bolts (400), fixing block (500) and elastic component (600); The support frame (200) is arranged on both sides of the transmission component (100). The mounting plate (300) is supported at the top of the support frame (200). The mounting plate (300) has a moving groove (301) on its surface. The fastening bolt (400) passes through the moving groove (301) and is threaded to the fixing block (500). The fixing block (500) has an installation groove (501) inside. The elastic component (600) is provided in the installation groove (501).

2. The online silicon wafer correction device according to claim 1, characterized in that, The conveying assembly (100) includes a mounting frame (101), a drive wheel (102), a driven wheel (103), and a conveyor belt (104). One end of the mounting bracket (101) is rotatably connected to the drive wheel (102) via a rotating shaft, and the other end of the mounting bracket (101) is rotatably connected to the driven wheel (103) via a rotating shaft. The drive wheel (102) and the driven wheel (103) are connected by a transmission belt (104) provided on the surface. The support frame (200) is arranged on both sides of the mounting bracket (101).

3. The online silicon wafer correction device according to claim 1, characterized in that, The mounting plate (300) includes a lower mounting plate (302) and an upper mounting plate (303) arranged sequentially from bottom to top; The lower mounting plate (302) has a first sliding groove (304) on its surface, and the upper mounting plate (303) has a second sliding groove (305) on its surface. The fastening bolt (400) passes through the first sliding groove (304) and the second sliding groove (305) in sequence and is then threaded to the fixing block (500). The first sliding groove (304) is used to limit the movement of the fixing block (500) along a first direction (a), and the second sliding groove (305) is used to limit the movement of the fixing block (500) along a second direction (b).

4. The online silicon wafer correction device according to claim 3, characterized in that, After the fastening bolt (400) passes through the moving groove (301), a fastening nut (401) is provided between it and the fixed block (500).

5. The online silicon wafer correction device according to claim 1, characterized in that, The elastic component (600) includes a fixing part (601), a chamber (602), a metal spring (603), a stop part (604), and a spring (605). The fixing part (601) extends forward along the horizontal direction to form the cavity (602). The top of the cavity (602) is provided with a movable hole. The metal spring (603) slides into the cavity (602) through the movable hole. The two ends of the metal spring (603) extend laterally to form the stop part (604). One end of the spring (605) abuts against the metal spring (603), and the other end of the spring (605) abuts against the fixing part (601). The fixing part (601) is inserted into the mounting groove (501).

6. The online silicon wafer correction device according to claim 5, characterized in that, The outer edge of the metal spring (603) has a semi-circular cross-section.

7. The online silicon wafer correction device according to claim 5, characterized in that, The surface of the fixing part (601) is provided with a threaded hole corresponding to the fixing block (500), and the fastening bolt (400) extends radially and passes through the threaded hole.

8. The online silicon wafer correction device according to claim 5, characterized in that, The surface of the fixing part (601) is coated with epoxy resin adhesive, and the elastic component (600) is bonded to the mounting groove (501) through the fixing part (601).

9. The online silicon wafer correction device according to claim 5, characterized in that, The outer surface of the metal spring (603) is covered with a rubber layer.

10. The online silicon wafer correction device according to claim 5, characterized in that, The thickness of the metal spring (603) is greater than or equal to the thickness of the silicon wafer.

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