Transmission mechanism, battery piece transmission device and battery piece production system

By setting limit blocks, especially buffer sections and step sections, on the conveyor belt, the problem of cell displacement during transmission was solved, achieving positioning and protection, and improving transmission quality and production efficiency.

CN223584635UActive Publication Date: 2025-11-21TONGWEI SOLAR ENERGY (CHENGDU) CO LID
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Patent Information

Application Number
CN202520237236.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2025-11-21
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

In existing technologies, solar cells with a thickness of about 110 micrometers are prone to displacement during transport on a conveyor belt, making them difficult to grasp accurately, and even causing collisions and fragmentation.

Method used

The transmission mechanism includes a conveyor belt and a limiting block. The limiting block consists of a buffer section and a step section. The inner wall of the buffer section is inclined and has a smooth transition surface. The step section is located inside the main body and is used to position and protect the sheet material.

Benefits of technology

It effectively prevents the deflection or displacement of thin sheet materials during transmission, reduces the risk of damage, improves production efficiency, and reduces the defect rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a transmission mechanism, a battery piece transmission device and a battery piece production system. The conveying mechanism is used for conveying sheet materials and comprises a conveying belt and limiting blocks arranged on the conveying belt, and the limiting blocks jointly define a limiting space; the limiting block comprises a main body part and a buffer part arranged on the inner side of the main body part; the inner side wall of the buffering part inclines inwards from top to bottom, at least the bottom area in the inner side wall of the buffering part is of a curved surface structure with smooth transition, and the curved surface structure is sunken from inside to outside. The transmission mechanism is suitable for transmission operation of sheet materials including battery pieces, the transmitted sheet materials are positioned and protected in the transmission process, the sheet materials are prevented from deflecting or displacing in the transmission process, and the transmission efficiency of the sheet materials is improved. And the next step of taking and placing operation is facilitated, and meanwhile, the sheet materials are prevented from being damaged in the conveying process.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solar cell, in particular to a conveying mechanism, a cell piece conveying device and a cell piece production system. BACKGROUND

[0002] With the continuous development of the photovoltaic industry, each enterprise is implementing the measures of'reducing cost and improving efficiency'; among them, the thinning of solar cell pieces has become a trend. The thickness of the cell piece is thinned to about 110 microns. The manufacturing of the solar cell piece includes a plurality of preparation steps involving the operation of conveying the cell piece with a relatively thin thickness on a conveying belt. However, in the prior art, the cell piece with a thickness of about 110 microns is directly placed on the conveying belt, and the cell piece will be displaced during the conveying process, resulting in that the cell piece cannot be accurately grabbed, and even the cell piece is collided to cause fragments. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to solve the above problems, and provide a conveying mechanism and a cell piece sorting device, and a cell piece manufacturing system; the conveying mechanism is used for conveying a thin sheet material including a cell piece, and the conveying mechanism can protect and position the thin sheet material during the conveying process, so as to avoid displacement of the thin sheet material during the conveying process.

[0004] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0005] In a first aspect, the present application provides a conveying mechanism for conveying a thin sheet material, which comprises a conveying belt and a limiting block arranged on the conveying belt, the limiting blocks collectively form a limiting space; the limiting block comprises a main body part and a buffer part arranged on the inner side of the main body part; the inner side wall of the buffer part is inclined inward from top to bottom, and at least the bottom region of the inner side wall of the buffer part is a transition smooth curved surface structure, and the curved surface structure is concave from inside to outside.

[0006] Optionally, the inner side wall of the buffer part is a transition smooth curved surface structure as a whole.

[0007] Optionally, the limiting block further comprises a step part arranged at the bottom of the buffer part; the step part is arranged on the inner side of the main body part, and the step part extends from the main body part to be arranged protruding from the buffer part.

[0008] Optionally, at least the buffer part and the step part of the limiting block are made of flexural graphene.

[0009] Optionally, at least the buffer part and the step part of the limiting block are made of a flexible material.

[0010] Optionally, the limiting blocks are arranged along a rectangular path on the surface of the conveying belt.

[0011] Optionally, the limiting blocks are arranged along the rectangular path at intervals, and the number of the limiting blocks is 8, and two limiting blocks are arranged on each side of the rectangular path.

[0012] Optionally, the limiting blocks are detachably connected to the conveying belt through a fixed connecting piece.

[0013] In a second aspect, the application provides a battery piece conveying device, which comprises a material taking head and the conveying mechanism as described above, and the material taking head is used for sucking the battery piece from the conveying mechanism.

[0014] In a third aspect, the application provides a battery piece production system, which comprises the battery piece conveying device as described above.

[0015] The application has at least the following beneficial effects:

[0016] The conveying mechanism described in the application is suitable for the conveying operation of thin sheet materials including battery pieces, and plays a positioning and protection role on the conveyed thin sheet materials during the conveying process, so as to avoid the deflection or displacement of the thin sheet materials during the conveying process, facilitate the subsequent taking and placing operation, avoid the damage of the thin sheet materials during the conveying process, improve the conveying quality, reduce the defective product rate, and further improve the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic diagram of the conveying mechanism of the application.

[0018] Figure 2 FIG. 2 is a structural schematic diagram of the conveying mechanism of the application, in which the curved surface structure of the buffer part is the first structure.

[0019] Figure 3 FIG. 3 is a structural schematic diagram of the conveying mechanism of the application, in which the curved surface structure of the buffer part is the second structure.

[0020] Figure 4 FIG. 4 is a structural schematic diagram of the battery piece conveying device of the application.

[0021] Figure 5 FIG. 5 is another angle of the structural schematic diagram of the battery piece conveying device shown in FIG. 4. Figure 4 FIG. 6 is another angle of the structural schematic diagram of the battery piece conveying device shown in FIG. 4.

[0022] In the drawings, 1 is a conveying belt, 2 is a limiting block, 21 is a main body part, 22 is a buffer part, 23 is a step part, 3 is a limiting space, 4 is a material taking head, and 5 is a battery piece. DETAILED DESCRIPTION

[0023] For the purpose of clarity, the present application will be described with reference to the attached drawings. The preferred embodiments of the present application will be described with reference to the attached drawings. The present application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0024] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present.

[0025] In the description of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that the direction in the present application refers to the direction close to the center of the limiting space; the direction refers to the direction away from the center of the limiting space formed by the surrounding; the top refers to the direction away from the plane of the conveyor belt, and the bottom refers to the direction close to the plane of the conveyor belt.

[0026] Embodiments:

[0027] Referring to Figures 1 to 3 As shown in the first aspect, the present application provides a conveying mechanism for conveying sheet material, which comprises a conveyor belt 1 and a limiting block 2 arranged on the conveyor belt 1, the limiting blocks 2 collectively form a limiting space 3; the limiting block 2 comprises a main body part 21 and a buffer part 22 arranged on the inner side of the main body part 21; the inner side wall of the buffer part 22 is inclined inward from top to bottom, and at least the bottom region of the inner side wall of the buffer part 22 is a transition smooth curved surface structure, which is concave from inside to outside.

[0028] The transmission mechanism sets the sheet material in the positioning area formed by the limiting block 2 when transmitting the sheet material, positions the sheet material, and prevents the sheet material from moving relative to the conveying belt 1 during transmission; the curved surface structure on the inner side wall of the buffer portion 22 buffers the force between the sheet material and the limiting block 2 when the sheet material shakes during transmission, protects the sheet material while positioning the sheet material, and further avoids damage to the sheet material during transmission; in addition, the inner side wall of the buffer portion 22 is inclined inward from top to bottom, so that the positioning area formed by the limiting block 2 is an open area, that is, the area of the top plane of the positioning area is greater than that of the bottom plane, which facilitates the placement of the sheet material and further avoids damage to the sheet material. The transmission mechanism described in the application is suitable for transmission of sheet materials including battery sheets, and plays a positioning and protection role for the transmitted sheet material during transmission, avoiding deflection or displacement of the sheet material during transmission, facilitating the next pick-and-place operation while avoiding damage to the sheet material during transmission. The sheet material includes battery sheets, wafers, PCB boards, or LED aluminum substrates, etc. As an option, during the transmission of the sheet material using the transmission mechanism, the edge of the sheet material contacts the bottom of the buffer portion, or a gap is provided between the sheet material and the bottom of the buffer portion.

[0029] Optionally, referring to Figure 2 , the inner side wall of the buffer portion 22 is a transitionally smooth curved surface structure as a whole; or referring to Figure 3 , at least the bottom region of the inner side wall of the buffer portion 22 is a transitionally smooth curved surface structure, including that the bottom of the inner side wall of the buffer portion 22 is a transitionally smooth curved surface structure, and the rest is a plane.

[0030] Referring to Figures 1 to 3 , the limiting block 2 further includes a stepped portion 23 provided at the bottom of the buffer portion 22; the stepped portion 23 is provided at the inner side of the main body portion 21, and the stepped portion 23 extends from the main body portion 21 to protrude from the buffer portion 22.

[0031] In use, the edge region of the sheet material is provided on the stepped portion 23, the sheet material provided on the stepped portion 23 is raised, the distance between the sheet material and the grabbing device is shortened, the grabbing device is facilitated to adsorb the battery sheet, the swing amplitude of the suction cup when adsorbing the battery sheet is reduced, the collision risk is reduced, the sheet material is avoided from directly contacting the conveying belt 1, and the conveying belt 1 is avoided from causing pollution to the sheet material.

[0032] Optionally, at least the buffer portion 22 and the step portion 23 of the limiting block 2 are made of flexible graphene, i.e. the inner side of the limiting block 2 that contacts the material being transported is made of flexible graphene. The flexible graphene material has good flexibility, which improves the buffering effect of the interaction force between the sheet material being transported on the conveying mechanism and the limiting block 2, and further improves the protection of the sheet material.

[0033] Specifically, for example, in some embodiments, the buffer portion 22 and the step portion 23 are made of flexible graphene. On the one hand, the main body portion 21 can rigidly support the buffer portion 22 and the step portion 23, improving the overall stability of the limiting block 2. On the other hand, the main body portion 21 can be made of other materials that are lower in cost than the buffer portion 22 and the step portion 23, further reducing the cost of the limiting block 2. In other embodiments, the entire limiting block 2 is made of flexible graphene. The limiting block 2 is made of one material, simplifying the manufacturing process of the limiting block 2 and improving the manufacturing efficiency of the limiting block 2.

[0034] Optionally, in other embodiments, at least the buffer portion 22 and the step portion 23 of the limiting block 2 are made of flexible material, i.e. the inner side of the limiting block 2 that contacts the material being transported is made of flexible material. This improves the buffering effect of the interaction force between the sheet material being transported on the conveying mechanism and the limiting block 2, and further improves the protection of the sheet material. Specifically, the flexible material is rubber material.

[0035] Specifically, for example, in some embodiments, the buffer portion 22 and the step portion 23 are made of flexible material. On the one hand, the main body portion 21 can rigidly support the buffer portion 22 and the step portion 23, improving the overall stability of the limiting block 2. On the other hand, the main body portion 21 can be made of other materials that are lower in cost than the buffer portion 22 and the step portion 23, further reducing the cost of the limiting block 2. In other embodiments, the entire limiting block 2 is made of flexible material. The limiting block 2 is made of one material, simplifying the manufacturing process of the limiting block 2 and improving the manufacturing efficiency of the limiting block 2.

[0036] Specifically, in this embodiment, the limiting block 2 is arranged along a rectangular path on the surface of the conveying belt 1.

[0037] Further, the limiting blocks 2 are arranged along the rectangular path, the number of the limiting blocks 2 is 8, and two limiting blocks 2 are arranged on each side of the rectangular path. Of course, the number of the limiting blocks 2 can be other numbers in other embodiments. The limiting blocks 2 are arranged at intervals, which can limit the sheet material and save the manufacturing material of the limiting blocks 2, and reduce the manufacturing cost. It can be understood that in other embodiments, the distribution path of the limiting blocks 2 can also be set according to the outer contour of the sheet material to be conveyed, and is not limited to the rectangular path.

[0038] The limiting blocks 2 are detachably connected to the conveying belt 1 through the fixing connectors. Optionally, the fixing connectors include positioning screws. The detachable connection between the limiting blocks 2 and the conveying belt 1 can facilitate replacement and maintenance of the limiting blocks 2 while the limiting blocks 2 are fixed to the conveying belt. The arrangement position of the fixing connectors can also be set according to actual needs; for example, the fixing connectors are arranged in the region corresponding to the main body part 21 or the region corresponding to the stepped part 23.

[0039] Referring to Figures 4 to 5As shown, in another aspect, the application provides a battery piece conveying device, which comprises a taking head 4 for sucking the battery piece 5 from the conveying mechanism and the conveying mechanism as described above. That is, the sheet material is a battery piece. The battery piece conveying device is used in the production process of solar battery pieces, for example, in a battery piece sorting device. Specifically, in use, the limiting blocks 2 are arranged circumferentially around the battery piece 5 to form the limiting space 3, and the battery piece 5 is arranged in the limiting space 3. When the conveying mechanism conveys the battery piece 5, the battery piece 5 is arranged in the positioning area formed by the limiting blocks 2 to position the battery piece 5, so as to prevent the battery piece 5 from being displaced relative to the conveying belt 1 during the conveying process. The curved structure on the inner side wall of the buffer portion 22 can buffer the force between the battery piece and the limiting blocks 2 when the battery piece shakes during the conveying process, so as to protect the battery piece during positioning, thereby avoiding damage to the battery piece during the conveying process. In addition, the inner side wall of the buffer portion 22 is inclined inward from top to bottom, so that the positioning area formed by the limiting blocks 2 is an open area, that is, the area of the top plane of the positioning area is greater than that of the bottom plane, which facilitates the placement of the battery piece, thereby avoiding damage to the battery piece. The edge area of the battery piece is arranged on the stepped portion 23, and the battery piece arranged on the stepped portion 23 is raised, so as to shorten the distance between the battery piece and the taking head 4, facilitate the adsorption of the battery piece by the grabbing device, thereby reduce the swinging range of the taking head 4 when adsorbing the battery piece, reduce the risk of collision, avoid direct contact between the battery piece and the conveying belt 1, and avoid contamination of the battery piece by the conveying belt 1. As an option, during the conveying process of the battery piece by the conveying mechanism, the edge of the battery piece contacts the bottom of the buffer portion, or a gap is provided between the battery piece and the bottom of the buffer portion.

[0040] In a third aspect, the application provides a battery piece production system, which comprises the battery piece conveying device as described above. The battery piece conveying device comprises the conveying mechanism provided in the first aspect. During the production of the battery piece by the battery piece production system, the battery piece conveying device can position and protect the battery piece during the conveying process of the battery piece based on the conveying mechanism, prevent the breakage of the battery piece caused by the displacement of the battery piece relative to the conveying belt, raise the battery piece by the stepped portion, shorten the distance between the battery piece and the grabbing device, facilitate the adsorption of the battery piece by the grabbing device, avoid excessive swinging of the battery piece during the conveying process, reduce the risk of collision, avoid direct contact between the battery piece and the conveying belt, and avoid contamination of the battery piece by the conveying belt.

[0041] Any technical features in the above embodiments can be combined, and for the sake of brevity, not all possible combinations are described above, however, as long as the combinations do not conflict with each other, they should be considered to be within the scope of the present disclosure.

[0042] The above embodiments only express the preferred embodiments of the present application, which are described in detail and specifically, but should not be understood as limiting the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A transport mechanism characterized by: A sheet material conveying device includes a conveying belt and limiting blocks arranged on the conveying belt, the limiting blocks collectively defining a limiting space; the limiting blocks include a main body portion and a buffer portion arranged inside the main body portion; an inner side wall of the buffer portion is inclined inward from top to bottom, and at least a bottom region of the inner side wall of the buffer portion is a transitionally smooth curved surface structure that is concave from inside to outside.

2. The transport mechanism of claim 1, wherein: The inner side wall of the buffer portion is a transitionally smooth curved surface structure as a whole.

3. The transport mechanism of claim 1, wherein: The limiting block further includes a step portion arranged at a bottom of the buffer portion; the step portion is arranged inside the main body portion, and the step portion extends from the main body portion to be arranged protruding from the buffer portion.

4. The transport mechanism of claim 3, wherein: At least the buffer portion and the step portion of the limiting block are made of flexural graphene.

5. The transport mechanism of claim 3, wherein: At least the buffer portion and the step portion of the limiting block are made of a flexible material.

6. The transport mechanism of claim 1, wherein: The limiting blocks are arranged along a rectangular path on a surface of the conveying belt.

7. A transport mechanism according to claim 6, characterised in that: The limiting blocks are arranged at intervals along the rectangular path, and the number of the limiting blocks is 8, and two limiting blocks are arranged on each side of the rectangular path.

8. The transport mechanism of claim 1, wherein: The limiting blocks are detachably connected to the conveying belt through fixed connecting members.

9. A cell transfer device, characterized by: A battery sheet conveying device includes a conveying device according to any one of claims 1-8 and a material taking head for sucking battery sheets from the conveying device.

10. A cell sheet production system characterized by comprising: A battery sheet conveying device according to claim 9.