Silicon wafer conveying and positioning mechanism

Abstract

The utility model discloses a silicon wafer conveying and positioning mechanism which comprises a fixing plate and a mounting plate, the top of the fixing plate is in threaded connection with at least two sets of screws, the tops of the screws are rotationally connected to the mounting plate through a first rotating device, and the top of the mounting plate is rotationally connected with at least two sets of limiting assemblies through a second rotating device. The two screw rods are used for adjusting the height of the limiting assembly through the mounting plate. Compared with the prior art, after the two screw rods rotate, the height of the limiting assembly can be adjusted through the mounting plate, so that the silicon wafer can be in contact with different horizontal height positions of the limiting assembly when conveyed, the service life of a part, in contact with the silicon wafer, in the limiting assembly is prolonged, and the part does not need to be frequently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of wafer transfer, and particularly relates to a wafer transfer positioning mechanism. Background Art

[0002] The positioning and correction of crystalline silicon solar cells are generally performed by a positioning and clamping mechanism with rollers, that is, the wafer passes through between two rollers. During this process, the two rollers contact both sides of the wafer, thereby positioning the wafer and enabling it to be transferred at a specified angle.

[0003] Due to the long-term scratching of the side of the wafer, the rollers will wear. Although the materials of the rollers are different, they are generally used with a single plane, that is, a horizontal plane is worn, which will cause the inability to fully utilize each height position of the rollers, and thus lead to the need for frequent replacement of the rollers. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a wafer transfer positioning mechanism. After the two screws rotate, the height of the limiting component can be adjusted through the mounting plate, so that when the wafer is transferred, it can contact different horizontal height positions of the limiting component, thereby improving the service life of the component in the limiting component that contacts the wafer, and eliminating the need for frequent replacement of this component.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A wafer transfer positioning mechanism includes a fixing plate and a mounting plate. At least two groups of screws are threadedly connected to the top of the fixing plate, and the top of the screws is rotatably connected to the mounting plate through a first rotating device. At least two groups of limiting components are rotatably connected to the top of the mounting plate through a second rotating device. The two groups of screws are used to adjust the height of the limiting components through the mounting plate.

[0007] Further, the limiting component includes a rotating shaft connected to the second rotating device. A rubber sleeve is sleeved on the rotating shaft, and a bottom plate for carrying the rubber sleeve is fixed on the outer periphery of the rotating shaft.

[0008] Further, a nut is threadedly connected to the top of the rotating shaft.

[0009] Further, both the first rotating device and the second rotating device are bearings.

[0010] Further, a measuring component for measuring the distance between the mounting plate and the fixing plate is provided at the bottom of the fixing plate.

[0011] Further, the measuring component includes a scale fixed to the bottom of the mounting plate, and a card slot matching the scale is provided on the top surface of the fixing plate.

[0012] Furthermore, a wrench clamping block is welded to the top of the periphery of the screw.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] After the two screws of the utility model rotate, the height of the limiting component can be adjusted through the mounting plate, so that when the silicon wafer is conveyed, it can contact different horizontal height positions of the limiting component, thereby improving the service life of the component in the limiting component that contacts the silicon wafer, so that it is not necessary to frequently replace this component. And because only when the two screws rotate in the same direction and synchronously can the height of the limiting component be adjusted, therefore, without using an additional fixing mechanism, the rubber sleeve can have good stability, and the structure is simplified.

[0015] The utility model can judge the distance between the fixing plate and the mounting plate through the measuring scale, and further facilitate the personnel to determine the adjustment height of the subsequent mounting plate according to the thickness of the silicon wafer.

[0016] The rubber sleeve of the utility model is fixed by the nut and the bottom plate. When the nut is disassembled, the rubber sleeve can be conveniently replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of a silicon wafer transfer and positioning mechanism of the utility model.

[0018] Figure 2 It is a schematic diagram of a limiting component of a silicon wafer transfer and positioning mechanism of the utility model.

[0019] Figure 3 It is a top view schematic diagram of a fixing plate of a silicon wafer transfer and positioning mechanism of the utility model.

[0020] In the figure: 1, fixing plate; 2, screw; 3, wrench clamping block; 4, mounting plate; 6, limiting component; 601, rotating shaft; 602, rubber sleeve; 603, nut; 604, bottom plate; 7, measuring component; 701, clamping groove; 702, measuring scale. DETAILED DESCRIPTION OF THE INVENTION

[0021] In order to make the technical means, creative features, achieving purposes and effects of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0022] As Figures 1-3 shown, a silicon wafer transfer and positioning mechanism includes a fixing plate 1 and a mounting plate 4. At least two groups of screws 2 are threadedly connected to the top of the fixing plate 1. The top of the screw 2 is rotationally connected to the mounting plate 4 through a first rotating device. At least two groups of limiting components 6 are rotationally connected to the top of the mounting plate 4 through a second rotating device. The two screws 2 are used to adjust the height of the limiting component 6 through the mounting plate 4.

[0023] In this embodiment, as Figure 1 and Figure 2 shown, the limit assembly 6 includes a rotating shaft 601 connected to the second rotating device. A rubber sleeve 602 is sleeved on the rotating shaft 601. A bottom plate 604 for carrying the rubber sleeve 602 is fixed on the periphery of the rotating shaft 601. The fixing plate 1 is fixed at the starting position of the conveyor belt. When the silicon wafer is conveyed, the silicon wafer will pass through between the two rubber sleeves 602 and contact the rubber sleeves 602, so that the rubber sleeves 602 can position the silicon wafer to ensure the normal conveyance of the silicon wafer. When a certain horizontal position of the rubber sleeve 602 is worn due to long-term contact with the silicon wafer, the operator can use a wrench to rotate the two screws 2 in the same direction at the same time. At this time, since the top of the screw 2 is rotationally connected to the mounting plate 4 through the first rotating device and the mounting plate 4 is restricted by the two screws 2 and cannot rotate, the mounting plate 4 can only change with the change of the height of the top of the screw 2, thereby adjusting the height of the rubber sleeve 602. Furthermore, multiple horizontal height positions of the rubber sleeve 602 can sequentially contact the silicon wafer, thereby increasing the service life of the rubber sleeve 602.

[0024] When the height of the rubber sleeve 602 is determined, since only the two screws 2 are rotated simultaneously as described above to change the position of the rubber sleeve 602, there is no need to adopt an additional fixing mechanism, and the rubber sleeve 602 can have good stability, simplifying the structure.

[0025] Wherein, both the first rotating device and the second rotating device are bearings. The rotating shaft 601 can rotate under the action of the second rotating device, so that the rubber sleeve 602 can rotate, thereby reducing the friction between the rubber sleeve 602 and the silicon wafer to reduce the wear of the rubber sleeve 602. Moreover, a nut 603 is threadedly connected to the top of the rotating shaft 601, which can cooperate with the bottom plate 604 to clamp and fix the rubber sleeve 602 on the periphery of the rotating shaft 601, improving the connection tightness between the rubber sleeve 602 and the rotating shaft 601 and also enabling the rubber sleeve 602 to be replaced.

[0026] Wherein, as Figure 1 shown, a measuring assembly 7 for measuring the distance between the mounting plate 4 and the fixing plate 1 is provided at the bottom of the fixing plate 1. The measuring assembly 7 includes a measuring scale 702 fixed to the bottom of the mounting plate 4. A card slot 701 matching the measuring scale 702 is opened on the top surface of the fixing plate 1. The bottom end of the measuring scale 702 is inserted into the card slot 701. By the length of the measuring scale 702 extending out of the card slot 701, the distance between the fixing plate 1 and the mounting plate 4 can be judged, and thus it is convenient for the operator to determine the subsequent adjustment height of the mounting plate 4.

[0027] Wherein, as Figure 1As shown, a wrench clamping block 3 is welded to the top periphery of the screw rod 2. By using a wrench, the screw rod 2 can be rotated through the wrench clamping block 3, thus avoiding deformation of the thread caused by directly clamping the thread of the screw rod 2 with the wrench.

[0028] Working principle: First, fix this mechanism at the starting position of the conveyor belt and ensure that when the silicon wafer is conveyed, it will pass through and contact the rubber sleeves 602 between the two rubber sleeves 602, so that the rubber sleeves 602 can position the silicon wafer to ensure the normal conveyance of the silicon wafer. When the position where the rubber sleeve 602 contacts the scale wears, use a wrench to rotate the two screw rods 2 in the same direction at the same time. At this time, since the top of the screw rod 2 is rotationally connected to the mounting plate 4 through the first rotating device and the mounting plate 4 is restricted by the two screw rods 2 and cannot rotate, the mounting plate 4 can only change with the change of the height of the top of the screw rod 2, thereby adjusting the height of the rubber sleeve 602, and further enabling multiple horizontal height positions of the rubber sleeve 602 to contact the silicon wafer in sequence, so as to improve the service life of the rubber sleeve 602. When the rubber sleeve 602 reaches the service life, unscrew the nut 603 from the rotating shaft 601 to replace the new rubber sleeve 602 for subsequent use.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A silicon wafer conveying and positioning mechanism, comprising a fixing plate (1) and a mounting plate (4), characterized in that: The top of the fixing plate (1) is threadedly connected to at least two groups of screw rods (2); the top of the screw rods (2) is rotatably connected to the mounting plate (4) via a first rotating device; the top of the mounting plate (4) is rotatably connected to at least two groups of limit assemblies (6) via a second rotating device; the two groups of screw rods (2) are used to adjust the height of the limit assemblies (6) via the mounting plate (4).

2. The silicon wafer conveying and positioning mechanism according to claim 1, characterized in that: The limiting assembly (6) comprises a rotating shaft (601) connected to the second rotating device, a rubber sleeve (602) is sleeved on the rotating shaft (601), and a bottom plate (604) supporting the rubber sleeve (602) is fixed to the periphery of the rotating shaft (601).

3. The silicon wafer conveying and positioning mechanism according to claim 2, characterized in that: A nut (603) is threadedly connected to the top of the rotating shaft (601).

4. The silicon wafer conveying and positioning mechanism according to claim 2, characterized in that: The first rotating device and the second rotating device are both bearings.

5. The silicon wafer conveying and positioning mechanism according to claim 1, characterized in that: A measuring component (7) for measuring the distance between the mounting plate (4) and the fixing plate (1) is provided at the bottom of the fixing plate (1).

6. The silicon wafer conveying and positioning mechanism according to claim 5, characterized in that: The measuring assembly (7) comprises a ruler (702) fixed to the bottom of the mounting plate (4), and a slot (701) matching the ruler (702) is provided on the top surface of the fixing plate (1).

7. The silicon wafer conveying and positioning mechanism according to claim 1, characterized in that: A wrench clamping block (3) is welded to the top of the outer periphery of the screw rod (2).

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