Battery piece conveying device based on weight detection, battery piece conveying system

Abstract

The application discloses a battery piece conveying device based on weight detection and a battery piece conveying system. The device comprises a first conveying belt and a second conveying belt which are oppositely spaced apart, and a battery piece is placed on the first conveying belt and the second conveying belt for conveying; a weight detection mechanism is arranged between the first conveying belt and the second conveying belt; a lifting driving mechanism is connected with the first conveying belt and the second conveying belt, controls the first conveying belt and the second conveying belt to lift and descend, and resets the first conveying belt and the second conveying belt after the weight detection mechanism completes weighing; and a battery piece removing mechanism is connected with the weight detection mechanism and removes the battery piece when the weight of the battery piece is abnormal. The first conveying belt and the second conveying belt are lifted and moved to place the battery piece on the weight detection mechanism for weighing, so that the battery piece is not carried and weighed during the conveying process, the detection error is effectively reduced, and the device can be integrated into a battery piece conveying production line, and the battery piece conveying efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cell manufacturing technology, specifically to a cell transfer device and cell transfer system based on weight detection. Background Technology

[0002] In the field of solar cell manufacturing, in order to ensure product quality and prevent defective solar cells from entering subsequent main equipment and affecting production, Automated Optical Inspection (AOI) technology is widely used. It takes pictures of solar cells on the solar cell conveyor belt and then uses image recognition algorithms to analyze the images to determine whether the solar cells have appearance defects such as foreign objects, chipped edges, missing corners, or printing defects. If an abnormality is detected, the system will control the actuator to kick the defective cells out of the normal wafer production path.

[0003] However, AOI inspection technology has limitations. Because the inspection method relies on photographing the cells on a conveyor belt, the belt may obstruct the view of the cells, creating blind spots. For example, areas of cells located below the belt or at the edge of contact with the belt cannot be accurately captured, allowing defective cells to still enter the main production line. Furthermore, most commonly used AOI inspections focus on visual inspection of the front of the cells, lacking effective means of inspecting the back. Even if the front passes inspection, defects such as foreign objects or chipped edges on the back are difficult to detect in time, allowing defective cells to enter the normal production process and reach the main production line. This can lead to issues such as cell blockage, damage to processing equipment, and disruptions to the normal operation of the production line and the final product quality. Utility Model Content

[0004] In view of the above problems, this application provides a cell transfer device and a cell transfer system based on weight detection to solve the above problems.

[0005] In a first aspect, this application provides a battery cell transfer device based on weight detection, comprising:

[0006] The first and second conveyor belts are arranged at relative intervals, and the battery cells are placed on the first and second conveyor belts for transport.

[0007] A weight detection mechanism is disposed between the first and second conveyor belts to detect the weight of the battery cells on the first and second conveyor belts.

[0008] A lifting drive mechanism is connected to the first and second conveyor belts and is used to control the first and second conveyor belts to lift and lower, so as to place the battery cell on the weight detection mechanism for weighing, and to reset the first and second conveyor belts after the weight detection mechanism has finished weighing.

[0009] A cell rejection mechanism, connected to the weight detection mechanism, is used to remove cells from the weight detection mechanism when the cell weight is abnormal.

[0010] In some embodiments, the weight detection mechanism includes:

[0011] Support base;

[0012] A weighing platform is positioned between the first and second conveyor belts and connected to the support base, for detecting the weight of the battery cells.

[0013] In some embodiments, a shock-absorbing component is installed between the support base and the weighing platform.

[0014] In some embodiments, the lifting drive mechanism includes:

[0015] The first lifting cylinder is connected to the first conveyor belt to control the lifting movement of the first conveyor belt;

[0016] The second lifting cylinder is connected to the second conveyor belt to control the lifting and lowering movement of the second conveyor belt.

[0017] In some embodiments, the first lifting cylinder is disposed below the first conveyor belt and is disposed opposite to the first conveyor belt;

[0018] The second lifting cylinder is located below the second conveyor belt and is positioned opposite to the second conveyor belt.

[0019] In some embodiments, the cell rejection mechanism includes:

[0020] A telescopic cylinder, connected to one end of the weighing platform, is used to control the tilting of the weighing platform so that the battery cell slides off the weighing platform.

[0021] In some embodiments, the surface of the weighing platform is coated with a smooth coating.

[0022] In some embodiments, it also includes:

[0023] A material box is disposed in the inclined direction of the weighing platform to receive the battery cells that slide off the weighing platform.

[0024] In some embodiments, the weight detection mechanism, the lifting drive mechanism, and the battery cell rejection mechanism are all provided with a communication module to communicate with an external host computer device. The weight detection mechanism is configured to transmit weight data to the host computer device, and the lifting drive mechanism and the battery cell rejection mechanism are configured to receive instructions from the host computer device to operate.

[0025] Secondly, this application also provides a cell transfer system, including at least one cell transfer device based on weight detection as described in the first aspect.

[0026] The cell transfer device and cell transfer system based on weight detection provided in this application use the weight of the cells to indicate whether the cells are abnormal. Compared with the traditional solution that relies on visual AOI to judge defective cells, this application has no blind spots, which greatly improves the accuracy of cell detection, reduces downtime of cell processing equipment caused by defective cells such as chipped edges and missing corners, and improves the uptime of cell processing equipment.

[0027] Furthermore, the weight detection-based cell transfer device provided in this application has a weight detection mechanism positioned between the first and second conveyor belts. This mechanism, in conjunction with a lifting drive mechanism, moves the first and second conveyor belts up and down to place the cells onto the weight detection mechanism. This avoids additional handling steps during cell transfer, effectively reducing detection errors. Moreover, this weight detection-based cell transfer device can be flexibly integrated into the cell transfer production line, ensuring that the normal cell transfer process is not affected, significantly improving the automation level and quality control capabilities of the production line.

[0028] These or other aspects of this application will become more apparent in the following description of the embodiments. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A front view of a battery cell transfer device based on weight detection provided in an embodiment of this application is shown.

[0031] Figure 2 A top view of a battery cell transfer device based on weight detection provided in an embodiment of this application is shown.

[0032] Figure 3A side view of a battery cell transfer device based on weight detection provided in an embodiment of this application is shown.

[0033] Icon labels:

[0034] 10. Battery cell; 110. First conveyor belt; 120. Second conveyor belt; 200. Weight detection mechanism; 210. Support base; 220. Weighing platform; 310. First lifting cylinder; 320. Second lifting cylinder; 400. Battery cell rejection mechanism; 500. Material box. Detailed Implementation

[0035] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] In the embodiments of this application, it should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0037] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Furthermore, in the embodiments of this application, "multiple" refers to two or more. Therefore, in the embodiments of this application, "multiple" can also be understood as "at least two". "At least one" can be understood as one or more, such as one, two, or more. For example, including at least one means including one, two, or more, and is not limited to which ones are included. For example, including at least one of A, B, and C, then it could include A, B, C, A and B, A and C, B and C, or A and B and C.

[0039] This application provides a battery cell transfer device based on weight detection. Figure 1This paper shows a front view of a battery cell transfer device based on weight detection according to an embodiment of the present application. Figure 2 This paper shows a top view of a battery cell transfer device based on weight detection according to an embodiment of the present application. Figure 3 A side view of the battery cell transfer device based on weight detection provided in an embodiment of this application is shown, as follows: Figures 1 to 3 As shown, the device includes:

[0040] The first conveyor belt 110 and the second conveyor belt 120 are arranged at a relative interval, so that both sides of the battery cell 10 can be placed on the first conveyor belt 110 and the second conveyor belt 120 for transmission. A weight detection mechanism 200 is disposed between the first conveyor belt 110 and the second conveyor belt 120 to detect the weight of the battery cell 10 on the first conveyor belt 110 and the second conveyor belt 120. Specifically, the weight detection mechanism 200 is positioned horizontally below the first conveyor belt 110 and the second conveyor belt 120, so as not to affect the transmission of the battery cell 10 when weighing is not being performed. A lifting drive mechanism (including 310 and 320) is connected to the first conveyor belt 110 and the second conveyor belt 120, controlling the lifting and lowering movements of the first and second conveyor belts 110 and 120. After the first and second conveyor belts 110 and 120 descend to a position lower than the weight detection mechanism 200, the battery cell 10 is placed in the weight detection mechanism 200 for weighing. After the weight detection mechanism 200 completes the weighing, the lifting drive mechanism controls the first and second conveyor belts 110 and 120 to rise, so that the first and second conveyor belts 110 and 120 reset to continue transporting the battery cell 10. A battery cell rejection mechanism 400 is connected to the weight detection mechanism 200, removing the battery cell 10 when the weight detection mechanism 200 detects an abnormal weight.

[0041] The battery cell transfer device based on weight detection provided in this application embodiment is applied to the battery cell production transfer process. A first conveyor belt 110 and a second conveyor belt 120 receive battery cells transferred from external equipment in the previous process. A lifting drive mechanism controls the first and second conveyor belts 110 and 120 to descend after receiving the battery cells. A weight detection mechanism 200 is located between the first and second conveyor belts 110 and 120. When the positions of the first and second conveyor belts 110 and 120 are lower than the weight detection mechanism 200... The solar cells are placed on the weight detection mechanism 200, where their weight is detected. If the weight of the solar cell matches the normal weight, the lifting drive mechanism controls the first conveyor belt 110 and the second conveyor belt 120 to reset, transferring the solar cell to the next outgoing external device. If the weight of the solar cell does not match the normal weight, the solar cell rejection mechanism 400 removes the solar cell from the weight detection mechanism 200. Subsequently, the lifting drive mechanism controls the first conveyor belt 110 and the second conveyor belt 120 to reset, awaiting the reception of new solar cells. Optionally, this application embodiment does not limit the external device. For example, the external device can also be a solar cell transfer mechanism, a solar cell processing machine, a basket device, etc. The weight detection-based solar cell transfer device of this application embodiment has both solar cell weighing and solar cell transfer functions. It can be set at any location in the solar cell production system to detect solar cells without affecting the solar cell transfer efficiency.

[0042] The battery cell transfer device based on weight detection provided in this application uses the weight of the battery cell to indicate whether the battery cell is abnormal. Compared with the traditional solution that relies on visual AOI to judge defective cells, this application has no detection blind spots, which greatly improves the accuracy of battery cell detection, reduces downtime of battery cell processing equipment caused by defective cells such as chipped edges and missing corners, and improves the uptime of battery cell processing equipment.

[0043] Furthermore, the weight detection-based cell transfer device provided in this application has a weight detection mechanism 200 disposed between the first conveyor belt 110 and the second conveyor belt 120. In conjunction with the lifting drive mechanism, the first conveyor belt 110 and the second conveyor belt 120 are moved up and down to place the cells onto the weight detection mechanism 200. This avoids additional handling steps during the cell transfer process, effectively reducing detection errors. Moreover, this weight detection-based cell transfer device can be flexibly integrated into the cell transfer production line, ensuring that it does not affect the normal cell transfer process, and significantly improving the automation level and quality control capabilities of the production line.

[0044] In some embodiments, such as Figures 1 to 3As shown in this embodiment, the weight detection mechanism 200 includes a support base 210 and a weighing platform 220. The weighing platform 220 is disposed between the first conveyor belt 110 and the second conveyor belt 120 and is connected to the support base 210, thereby detecting the weight of the battery cell 10. Optionally, the detection accuracy of the weighing platform 220 is at the milligram level, thus enabling it to detect weight changes of milligrams in the battery cell.

[0045] In some embodiments, such as Figures 1 to 3 As shown in the embodiment of this application, the lifting drive mechanism includes a first lifting cylinder 310 and a second lifting cylinder 320. The first lifting cylinder 310 is connected to the first conveyor belt 110, thereby controlling the first conveyor belt 110 to perform lifting movements. The second lifting cylinder 320 is connected to the second conveyor belt 120, thereby controlling the second conveyor belt 120 to perform lifting movements. Optionally, the first lifting cylinder 310 and the second lifting cylinder 320 operate synchronously, thereby ensuring that the first conveyor belt 110 and the second conveyor belt 120 can lift and lower synchronously.

[0046] In some embodiments, such as Figures 1 to 3 As shown in the embodiment of this application, the first lifting cylinder 310 is disposed below the first conveyor belt 110 and opposite to the first conveyor belt 110, and the second lifting cylinder 320 is disposed below the second conveyor belt 120 and opposite to the second conveyor belt 120. The first lifting cylinder 310 and the second lifting cylinder 320 are disposed below the first conveyor belt 110 and the second conveyor belt 120, which reduces the floor space required by the entire device in the horizontal direction.

[0047] It is understood that in the embodiments of this application, the specific positions of the first lifting cylinder 310 and the second lifting cylinder 320 are not limited to the above embodiments. In fact, the first lifting cylinder 310 and the second lifting cylinder 320 can also be positioned to the side or in the front-back direction of the first conveyor belt 110 and the second conveyor belt 120 to control the lifting and lowering movements of the first conveyor belt 110 and the second conveyor belt 120.

[0048] In some embodiments, such as Figures 1 to 3 As shown in the embodiment of this application, the battery cell rejection mechanism 400 includes a telescopic cylinder connected to one end of the weighing platform 220. The telescopic cylinder is used to control the tilt of the weighing platform 220 so that the battery cell 10 slides off the weighing platform 220. Optionally, the left and right sides of the weighing platform 220 are adjacent to the first conveyor belt 110 and the second conveyor belt 120, respectively. Obviously, the telescopic cylinder is connected to the front or rear side of the weighing platform 220 to control the weighing platform 220 to tilt forward or backward. It can be understood that whether the telescopic cylinder controls the front or rear side of the weighing platform should be set according to the application scenario of the battery cell transmission device based on weight detection in this embodiment of the application. This embodiment of the application does not limit this.

[0049] It is understood that the embodiments of this application do not limit the placement of the telescopic cylinder. For example, the telescopic cylinder can be placed below the weighing platform to reduce the horizontal footprint required for the entire device. However, the solution of the embodiments of this application can also be achieved by placing the telescopic cylinder in other positions to control the tilt of the weighing platform.

[0050] In some embodiments, such as Figures 1 to 3 As shown in the embodiment of this application, the surface of the weighing platform 220 is covered with a smooth coating to reduce the friction of the weighing platform 220. In this way, when the weighing platform 220 is tilted, the battery cells can slide quickly off the weighing platform 220.

[0051] It is understood that the material of the smooth coating is not limited in the embodiments of this application. For example, coatings with low coefficient of friction and high wear resistance, such as Teflon coating, co-coating, and polymer coating, can be used to facilitate the rejection of battery cells.

[0052] In some embodiments, such as Figures 1 to 3 As shown in the embodiment of this application, the battery cell transfer device based on weight detection provided in this application embodiment also includes a material box 500, which is disposed in the inclined direction of the weighing platform 220 to receive the battery cells sliding down from the weighing platform 220.

[0053] In some embodiments of this application, a vibration damping component is installed between the support base 210 and the weighing platform 220 to reduce the impact of environmental and equipment vibrations on weighing. Vibration in the production environment can interfere with weighing and cause measurement errors. The vibration damping component improves detection accuracy by absorbing and buffering vibration energy.

[0054] It is understood that the specific structure of the shock-absorbing component is not limited in the embodiments of this application. For example, the shock-absorbing component can be set as a rubber shock-absorbing pad, thereby reducing shock through the elasticity and damping characteristics of the rubber material; or the shock-absorbing component can also be set as a spring shock absorber, thereby absorbing and buffering the vibration to ensure the accuracy of weight detection and the stability of the equipment.

[0055] In some embodiments of this application, the weight detection mechanism 200, the lifting drive mechanism, and the battery cell rejection mechanism 400 are all equipped with communication modules for communication with an external host computer device. The weight detection mechanism 200 is configured to transmit weight data to the host computer device, and the lifting drive mechanism and the battery cell rejection mechanism 400 are configured to receive instructions from the host computer device to operate. Optionally, when the battery cell 10 reaches the first conveyor belt 110 and the second conveyor belt 120, the host computer device controls the lifting drive mechanism to descend to weigh the battery cell 10, and receives the weight data detected by the weight detection mechanism 200 and compares it with the weight data of a normal battery cell 10. If the two data are inconsistent and the weight exceeds the error weight, the host computer device controls the battery cell rejection mechanism 400 to move the battery cell 10 out, and finally controls the lifting drive mechanism to reset the first conveyor belt 110 and the second conveyor belt 120.

[0056] It is understood that the embodiments of this application aim to avoid introducing additional handling steps during the cell transfer process. This not only effectively reduces detection errors but also allows for the flexible integration of the weight-based cell transfer device into the cell transfer production line. The advantage of this device is that it does not interfere with the normal cell transfer process, thus ensuring production continuity. Simultaneously, this design significantly enhances the automation level and quality control capabilities of the production line. Setting up a communication module to communicate with the host computer to control the operation of each mechanism is a standard operation; therefore, the embodiments of this application do not limit this practice.

[0057] This application also provides a cell transfer system, which includes at least one cell transfer device based on weight detection as described in the above embodiments.

[0058] The cell transfer system provided in this application embodiment can be flexibly integrated into any position on the cell transfer production line without affecting the normal transfer process of the cells, thus significantly improving the automation level and quality control capability of the production line.

[0059] The above description, in conjunction with specific embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications and substitutions should be considered within the scope of protection of this application.

Claims

1. A battery cell transfer device based on weight detection, characterized in that, include: The first and second conveyor belts are arranged at relative intervals, and the battery cells are placed on the first and second conveyor belts for transport. A weight detection mechanism is disposed between the first and second conveyor belts to detect the weight of the battery cells on the first and second conveyor belts. A lifting drive mechanism is connected to the first and second conveyor belts and is used to control the first and second conveyor belts to lift and lower, so as to place the battery cell on the weight detection mechanism for weighing, and to reset the first and second conveyor belts after the weight detection mechanism has finished weighing. A cell rejection mechanism, connected to the weight detection mechanism, is used to remove cells from the weight detection mechanism when the cell weight is abnormal.

2. The battery cell transfer device based on weight detection as described in claim 1, characterized in that, The weight detection mechanism includes: Support base; A weighing platform is positioned between the first and second conveyor belts and connected to the support base, for detecting the weight of the battery cells.

3. The battery cell transfer device based on weight detection as described in claim 2, characterized in that, A shock-absorbing component is installed between the support base and the weighing platform.

4. The battery cell transfer device based on weight detection as described in claim 1, characterized in that, The lifting drive mechanism includes: The first lifting cylinder is connected to the first conveyor belt to control the lifting movement of the first conveyor belt; The second lifting cylinder is connected to the second conveyor belt to control the lifting and lowering movement of the second conveyor belt.

5. The battery cell transfer device based on weight detection as described in claim 4, characterized in that, The first lifting cylinder is located below the first conveyor belt and is positioned opposite to the first conveyor belt. The second lifting cylinder is located below the second conveyor belt and is positioned opposite to the second conveyor belt.

6. The battery cell transfer device based on weight detection as described in claim 2, characterized in that, The battery cell rejection mechanism includes: A telescopic cylinder, connected to one end of the weighing platform, is used to control the tilting of the weighing platform so that the battery cell slides off the weighing platform.

7. The battery cell transfer device based on weight detection as described in claim 6, characterized in that, The surface of the weighing platform is covered with a smooth coating.

8. The battery cell transfer device based on weight detection as described in claim 6, characterized in that, Also includes: A material box is disposed in the inclined direction of the weighing platform to receive the battery cells that slide off the weighing platform.

9. The battery cell transfer device based on weight detection as described in claim 1, characterized in that, The weight detection mechanism, the lifting drive mechanism, and the battery cell rejection mechanism are all equipped with communication modules to communicate with external host computer devices. The weight detection mechanism is configured to transmit weight data to the host computer device, and the lifting drive mechanism and the battery cell rejection mechanism are configured to receive instructions from the host computer device to operate.

10. A battery cell transmission system, characterized in that, It includes at least one battery cell transfer device based on weight detection as described in any one of claims 1 to 9.

Images