Photovoltaic device conveying mechanism

Abstract

The utility model discloses a photovoltaic device conveying mechanism which comprises a supporting rod, the supporting rod is provided with installation threads at preset intervals, and the installation threads are sleeved with a resistance adjusting device in a threaded mode. The portions, on the outer sides of the resistance adjusting devices, of the supporting rods are sleeved with rotating inner discs respectively, rotating outer discs are rotationally installed outside the rotating inner discs, the rotating inner discs and the rotating outer discs are assembled to form rotating wheel discs, and a circle of protruding bearing layer is arranged in the circumferential direction of the middle of each rotating outer disc. When the relative speed of the conveyor belt and the furnace belt is relatively high, the relative displacement between the battery piece and the furnace belt is reduced, and the risks of bad pieces such as scratches, fragments and hidden cracks are reduced. A point contact type bearing mode replaces a slope type bearing mode, the overall level of the battery piece can be guaranteed, and the fragment risk is reduced. The resistance adjusting device makes uniform contact with the rotating wheel disc in all directions, shaking can be effectively reduced, and stable operation of the transmission mechanism is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of battery slice processing equipment, and more specifically, to a photovoltaic device transmission mechanism. Background Art

[0002] During the production and screen printing of solar cells, multiple steps are required, including front-side auxiliary grid printing, front-side main grid printing, back-side auxiliary grid printing, and back-side main grid printing. Each completed electrode printing step requires the cells to be dried in an oven, which means the cells need to be frequently conveyed to the next step. During the conveying process, especially between the conveyor belt and the oven belt, defective cells such as scratches, fragments, and hidden cracks are very likely to be produced. There are two main reasons for this phenomenon: On the one hand, the existing battery cell production and processing equipment uses a sloped receiving surface on the oven belt. Although this can solve the problem of the battery cell not being able to be properly received and conveyed when it deviates to the left or right to a certain extent, when the battery cell deviates greatly to the left or right, there will be a significant height difference between the front and rear ends of the battery cell during the process of transferring the battery cell from the conveyor belt to the oven belt. The battery will generate a strong vibration during the transmission process, which will undoubtedly increase the risk of fragmentation. On the other hand, due to material aging, mechanical wear, transmission belt slippage and other reasons, it is inevitable that the speed of the conveyor belt and the oven belt will not be completely synchronized. At this time, under the action of inertia, the battery cell will slide on the oven belt, which is very likely to cause scratches on the battery cell. These problems will not only result in a large number of defective cells but also reduce production efficiency. Therefore, how to achieve efficient and stable transmission of battery cells during the transmission process is a problem that we need to solve urgently. Utility Model Content

[0003] To overcome the aforementioned shortcomings of the prior art, the present invention provides a photovoltaic device conveying mechanism to address the issues raised in the aforementioned background technology. This mechanism can reduce the relative displacement between the conveyor belt and the furnace belt when the relative speed between the two is high, thereby reducing the risk of defective cells such as scratches, fragments, and hidden cracks. The point-to-point contact method replaces the sloped contact method, ensuring the overall levelness of the cell and reducing the risk of fragmentation. The resistance adjustment device maintains uniform contact with the rotating wheel in all directions, effectively reducing vibration and ensuring stable operation of the transmission mechanism.

[0004] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0005] A photovoltaic device transmission mechanism, comprising:

[0006] support rods;

[0007] The support rod is provided with a mounting thread with a preset spacing, and the mounting thread is externally threaded with a resistance adjustment device; a rotating inner disk is respectively sleeved on the support rod outside the resistance adjustment device, and a rotating outer disk is rotatably installed outside the rotating inner disk. The rotating inner disk and the rotating outer disk are assembled into a rotating wheel, and a raised receiving layer is provided in the middle circumferential direction of the rotating outer disk.

[0008] Furthermore, at least two sets of rotating wheels and resistance adjustment devices are provided on the support rod.

[0009] Furthermore, the resistance adjustment device is provided with a rubber ring near one end of the rotating wheel, and the inner ring is provided with a rotating internal thread; the size of the rubber ring matches the inner opening of the rotating outer disk, and the resistance adjustment device is installed on the support rod through the rotating internal thread.

[0010] Furthermore, a hollow section is provided between the resistance adjustment device and the rotating inner disk and they do not contact each other.

[0011] Furthermore, the rotating inner disk is hollowed out inwardly so as to avoid contact with the resistance adjustment device.

[0012] Furthermore, the receiving layer of the protrusion is an arched protrusion.

[0013] Furthermore, the receiving layer is made of plastic or rubber.

[0014] Furthermore, the hardness range of the receiving layer is 20-90A Shore hardness, and the heat-resistant temperature is not less than 300 degrees Celsius.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This device can reduce the relative displacement between the battery cells and the furnace belt when the relative speed between the conveyor belt and the furnace belt is high, thereby reducing the risk of defective cells such as scratches, fragments, and hidden cracks.

[0017] 2. The resistance adjustment device is in even contact with the rotating wheel in all directions, which can effectively reduce vibration and ensure stable operation of the transmission mechanism;

[0018] 3. The resistance adjustment device is adjusted by rotating the screw, with high adjustment accuracy;

[0019] 4. The point-touch connection method replaces the slope connection method, which can ensure the overall level of the battery cell and reduce the risk of fragmentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall front view structure of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the resistance adjustment device of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the rotating wheel of the utility model;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the rotating wheel of the utility model;

[0026] Figure 6 It is a schematic diagram of the transmission mechanism structure of the prior art device.

[0027] Explanation of the accompanying symbols: 1. Support rod; 2. Mounting thread; 3. Rotating inner disk; 4. Resistance adjustment device; 5. Rotating outer disk; 6. Support layer; 4-1. Rubber ring; 4-2. Rotating inner thread; 1-1. Support member; 5-1. Wedge-shaped support block. DETAILED DESCRIPTION

[0028] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0029] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] Example

[0031] Refer to the attached Figure 1-Figure 5 This embodiment provides a photovoltaic device conveying mechanism, comprising a support rod 1. The support rod 1 is provided with mounting threads 2 with a preset spacing. A resistance adjustment device 4 is externally threadedly mounted on the mounting threads 2. Rotating inner disks 3 are sleeved on the support rod 1 outside the resistance adjustment device 4. Rotating outer disks 5 are rotatably mounted on the outer surfaces of the rotating inner disks 3. The rotating inner disks 3 and rotating outer disks 5 are assembled into a rotating wheel. A raised receiving layer 6 is provided around the central circumference of the rotating outer disk 5.

[0032] There are at least two sets of rotating disks and resistance adjusting devices 4 provided on the support rod 1. To meet the production requirements of multi-line simultaneous transmission, in this embodiment, a bearing mechanism composed of more than 2 sets of rotating disks and resistance adjusting devices 4 is arranged on one support rod 1.

[0033] A rubber ring 4-1 is provided at one end of the resistance adjusting device 4 close to the rotating disk, and a rotating internal thread 4-2 is provided on the inner ring; the size of the rubber ring 4-1 matches the inner opening of the rotating outer disk 5, and the resistance adjusting device 4 is installed on the support rod 1 through the rotating internal thread 4-2. The lateral position of the resistance adjusting device 4 can be adjusted by rotating it. The maximum frictional resistance between the resistance adjusting device 4 and the rotating disk is adjusted by the different contact forces between it and the rotating disk.

[0034] There is a hollow section between the resistance adjusting device 4 and the rotating inner disk 3 and they do not contact each other. Or the rotating inner disk 3 is hollowed inward to achieve non-contact with the resistance adjusting device 4.

[0035] The raised承接层6 (assuming it's a specific name, should be translated accurately as per context, for now using the same Chinese name) is an arched protrusion. The material of the承接层6 is a soft, high-temperature-resistant plastic or rubber. It can reduce the contact area between the battery cell and the conveying device. A承接层6 is provided on its outer surface, further reducing the risk of battery cell damage. The hardness range of the承接层6 is 20 - 90A Shore hardness, and the heat-resistant temperature is not lower than 300 degrees Celsius.

[0036] Specifically, taking single-line transmission as an example: There are multiple parallel support rods 1 arranged on the furnace belt conveying device, and a bearing mechanism composed of more than 2 sets of rotating disks and resistance adjusting devices 4 is arranged on one support rod 1. When the battery cell is conveyed from the previous conveying unit to the furnace belt, the front end of the battery cell first contacts the承接层6, and continues to move forward. The rear end of the battery cell contacts the承接层6 on the next support rod. Because the installation distance between the front and rear support rods is equal, it can ensure that the height difference between the two support rods during the承接 process is constant. It can ensure that the battery cell is always at the same height and will not vibrate during the transmission process, effectively protecting the battery cell.

[0037] When the transmission speed of the previous transmission unit is not synchronized with the furnace belt transmission speed, the battery cell will slide on the furnace belt for a certain distance due to inertia, and at this time, it is easy to scratch the battery cell. This design can effectively reduce this risk. The maximum frictional resistance f between the rotating resistance adjusting device 4 and the rotating disk satisfies the following conditions: the resistance required for normal battery transmission < f; the size of f can be adjusted according to actual production needs.

[0038] When the transmission speed of the previous transmission unit is not synchronized with the transmission speed of the furnace belt, the battery cell contacts the transmission receiving layer 6 at a faster speed, and the rotating outer disk 5 is subjected to a larger force. At this time, the force on the rotating outer disk 5 is greater than f, and the rotating outer disk 5 will rotate. This can reduce the relative displacement between the battery cell and the furnace belt and reduce the risk of dicing. The transmission unit of the prior art uses multiple wires such as Figure 6 The support member 1-1 shown is composed of spaced wedge-shaped receiving blocks 5-1. The support member 1-1 has a sloped receiving surface on the oven belt. Although it can solve the problem of the battery cell not being able to be normally received and conveyed when the battery cell is offset to the left or right to a certain extent, when the battery cell is greatly offset to the left or right, there will be an obvious height difference between the front and rear ends of the battery cell during the process of the battery cell being conveyed from the conveyor belt to the oven belt. The battery will generate a strong vibration during the transmission process, which will undoubtedly increase the risk of fragmentation.

[0039] This new type of device can evenly contact the rotating wheel in all directions through the resistance adjustment device, which can effectively reduce vibration and ensure stable operation of the transmission mechanism. The point-contact acceptance method replaces the slope-type acceptance method, which can ensure the overall level of the battery cells and reduce the risk of fragmentation. When the relative speed of the conveyor belt and the furnace belt is large, the relative displacement between the battery cells and the furnace belt can be reduced, reducing the risk of defective cells such as scratches, fragments, and hidden cracks.

[0040] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A photovoltaic device transmission mechanism, comprising: Support rod (1); The invention is characterized in that a mounting thread (2) with a preset spacing is provided on the support rod (1), and a resistance adjustment device (4) is sleeved on the outer thread of the mounting thread (2); a rotating inner disk (3) is sleeved on the support rod (1) outside the resistance adjustment device (4), and a rotating outer disk (5) is rotatably mounted on the outer side of the rotating inner disk (3), and the rotating inner disk (3) and the rotating outer disk (5) are assembled into a rotating wheel, and a raised receiving layer (6) is provided in the circumferential direction of the middle part of the rotating outer disk (5).

2. A photovoltaic device conveying mechanism according to claim 1, characterized in that: At least two sets of rotating wheels and resistance adjustment devices (4) are provided on the support rod (1).

3. A photovoltaic device conveying mechanism according to claim 1, characterized in that: The resistance adjustment device (4) is provided with a rubber ring (4-1) near one end of the rotating wheel, and the inner ring is provided with a rotating internal thread (4-2); the size of the rubber ring (4-1) matches the inner opening of the rotating outer disk (5), and the resistance adjustment device (4) is installed on the support rod (1) through the rotating internal thread (4-2).

4. A photovoltaic device conveying mechanism according to claim 1, characterized in that: There is a hollow section between the resistance adjustment device (4) and the rotating inner disk (3) and they do not contact each other.

5. A photovoltaic device conveying mechanism according to claim 4, characterized in that: The rotating inner disk (3) is hollowed out inwards so as to prevent the rotating inner disk (3) and the resistance adjusting device (4) from contacting each other.

6. The photovoltaic device conveying mechanism according to claim 1, characterized in that: The raised receiving layer (6) is an arched raised portion.

7. The photovoltaic device conveying mechanism according to claim 1, characterized in that: The receiving layer (6) is made of plastic or rubber.

8. The photovoltaic device conveying mechanism according to claim 1, characterized in that: The hardness of the receiving layer (6) is in the range of 20-90A Shore hardness, and the heat-resistant temperature is not less than 300 degrees Celsius.

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