Feeding positioning structure of sintering furnace

Abstract

The utility model belongs to the technical field of solar cell panel production, and particularly relates to a sintering furnace feeding positioning structure which comprises a conveying frame, a crawler belt capable of rolling and circularly rotating is arranged in the conveying frame, ejector pins are symmetrically arranged on the crawler belt, and a correcting structure is installed on the conveying frame. The correction structure comprises a correction frame, the battery piece directly enters the sintering furnace through the sintering furnace crawler belt to be sintered, the battery piece is placed on the ejector pin, and in order to ensure that the battery piece is placed in a horizontal state, the correction structure is arranged at the same time to correct the position of the battery piece fed into the sintering furnace; it is guaranteed that the battery piece is in a horizontal state before sintering, it is guaranteed that when the battery piece is sintered, the distance between the surface of the battery piece and a sintering structure is the same, heating is uniform, and the sintering quality of the battery piece is better guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar cell panel production, in particular to a sintering furnace feed positioning structure. Background Art

[0002] Crystalline silicon solar cells are solar cells based on silicon materials. The positive and negative electrodes and the back electric field of the crystalline silicon solar cell will play the role of transmitting the electricity generated by the silicon solar cell to the outside world. The electrodes and the back aluminum field are formed by printing, drying and sintering. After the cell is screen-printed, the cell directly passes through the sintering furnace crawler into the sintering furnace for sintering;

[0003] In the prior art, a solar cell sintering furnace crawler with announcement number CN 202101541 U includes a flat crawler body serving as a carrier when sintering solar cells, and two crawler support frames are arranged on the crawler body in an inclined surface. The solar cells are flatly laid on the surfaces of the two crawler support frames and the crawler support frames only contact the edge lines of the solar cells.

[0004] The existing ejector pins are on tracks. When the ejector pins are used to lift the battery cells, the horizontal state of the battery cells cannot be effectively guaranteed, causing the battery cells to tilt. The distances between the heating surface of the battery cells and the heating structure are different, resulting in different heating, which affects the sintering quality of the battery panel. Therefore, a sintering furnace feed positioning structure is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art, a sintering furnace crawler ejector pin structure is proposed to correct the horizontal state of the sintered battery cell by correcting the structure, ensuring the same heating distance, thereby ensuring the sintering quality of the battery cell.

[0006] The technical solution adopted by the utility model to solve the technical problem is a sintering furnace feeding positioning structure, including a conveying frame, the interior of the conveying frame is provided with a crawler that can roll and circulate, the crawler is symmetrically provided with ejectors, and a correction structure is installed on the conveying frame;

[0007] The correction structure comprises a correction frame, a correction frame is fixed on the top side of the conveying frame, a movable cylinder is installed at the middle position of the top side of the crossbeam of the correction frame, an action rod of the movable cylinder penetrates the crossbeam of the correction frame, a movable plate is fixed at the bottom end of the action rod, a connecting seat is symmetrically fixed at the bottom side of the movable plate, a swing plate is rotatably installed in the connecting seat through a pin shaft, a mounting groove is opened at the bottom end of the swing plate, and a roller is rotatably installed in the mounting groove through the wheel shaft;

[0008] A spring is fixedly connected between the two swing plates.

[0009] Preferably, the ejector pins are of an inclined structure, and the two ejector pins form a symmetrical structure with a concave middle portion. Battery cells are arranged on the track, and the battery cells are mounted on the inclined surfaces of the ejector pins, which can ensure stable support for the battery cells and reduce the contact area between the track and the battery cells, thereby achieving a better sintering effect.

[0010] Preferably, the correction structure also includes an extension plate, a first electrode is installed on the bottom side of the extension plate, an indicator light is installed on the top side of the extension plate, and a second electrode is installed on the inclined upper surface of the swing plate, and the second electrode is arranged below the first electrode.

[0011] Preferably, a fixing frame is fixed on one side of the correction frame, and an identifier is installed on the bottom side of the fixing frame, which can identify the battery cells loaded through the crawler and facilitate the subsequent correction operation of the battery cells.

[0012] Preferably, the indicator light, the first electrode, the second electrode and the power supply are connected by wires, the indicator light is connected to the control box via a signal line, the identifier is connected to the control box via a data line, the control box sends a start-stop signal to the active cylinder, the transportation of the battery cell is identified by the identifier, the identification signal is sent to the control box, the control box issues an instruction to the active cylinder, and the power-on signal of the indicator light is sent to the control box, which can stop the continued advancement of the active cylinder and realize the resetting operation of the active cylinder, thereby realizing the horizontal correction of the battery cell and ensuring that the battery cell is heated evenly.

[0013] The utility model is beneficial in that:

[0014] After screen printing, the battery cells directly enter the sintering furnace through the sintering furnace crawler for sintering. The battery cells are placed on the ejector pins. In order to ensure that the battery cells are placed in a horizontal state, a correction structure is set at the same time to correct the position of the battery cells sent into the sintering furnace to ensure that the battery cells are in a horizontal state before sintering. When the battery cells are sintered, the distance between the surface and the sintering structure is the same, ensuring uniform heating and better ensuring the sintering quality of the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure;

[0017] Figure 2 To correct the structural diagram;

[0018] Figure 3 It is a schematic diagram of the overall top view structure;

[0019] Figure 4 for Figure 3 Schematic diagram of the AA section structure along the middle edge;

[0020] In the figure: 1. conveying frame, 2. correction frame, 3. control box, 4. movable cylinder, 5. fixed frame, 6. identifier, 7. battery cell, 8. crawler, 9. ejector, 10. movable plate, 11. extension plate, 12. indicator light, 13. first electrode, 14. second electrode, 15. swing plate, 16. roller, 17. spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 As shown, a sintering furnace feed positioning structure includes a conveyor frame 1, wherein a crawler 8 capable of rolling and cyclic rotation is arranged inside the conveyor frame 1, and ejector pins 9 are symmetrically arranged on the crawler 8, and a correction structure is installed on the conveyor frame 1;

[0023] The correction structure includes a correction frame 2, the top side of the conveying frame 1 is fixed with the correction frame 2, a movable cylinder 4 is installed at the middle position of the top side of the crossbeam of the correction frame 2, the action rod of the movable cylinder 4 penetrates the crossbeam of the correction frame 2, a movable plate 10 is fixed at the bottom end of the action rod, a connecting seat is symmetrically fixed to the bottom side of the movable plate 10, a swing plate 15 is rotatably installed in the connecting seat through a pin shaft, a mounting groove is opened at the bottom end of the swing plate 15, and a roller 16 is rotatably installed in the mounting groove through the wheel shaft;

[0024] A spring 17 is fixedly connected between the two swing plates 15. The ejector pin 9 is an inclined structure. The two ejector pins 9 form a symmetrical structure with a concave middle. A battery cell 7 is arranged on the track 8. The battery cell 7 is mounted on the inclined surface of the ejector pin 9.

[0025] After screen printing, the battery cell directly enters the sintering furnace through the sintering furnace track for sintering. Due to the temperature difference between the gaps in the sintering furnace track, it is easy to cause uneven heating of the battery cell. When the battery cell is in direct contact with the track, the temperature of the place in contact with the track is not enough. If the track is in direct contact with the positive silver surface, it is easy to cause the contact point to break and fail to form a good ohmic contact, thereby affecting the series resistance. In order to ensure the sintering effect of the battery cell 7, by weaving the support, it can be ensured that there is enough space for heat to pass when the battery cell 7 is sintered and transported, and it can ensure that the upper and lower parts of the battery cell are heated evenly. When the battery cell 7 is transported, since the battery cell 7 is placed on the ejector pin 9, in order to ensure To ensure that the battery cell 7 is in a horizontal conveying state, the horizontal state of the battery cell 7 needs to be corrected. During the correction, the movable cylinder 4 is operated to push down the movable plate 10, so that the rollers 16 at the bottom of the two swing plates 15 are in contact with the upper surface of the battery cell 7, and the two rollers 16 are pushed to both sides synchronously. Since the rollers 16 on both sides are subjected to synchronous force, when the battery cell 7 is tilted, the battery cell 7 that is in contact with the rollers 16 is pressed first. With the push-down cooperation of the movable cylinder 4, the two rollers 16 are in contact with the upper surface of the battery cell 7. With the synchronous operation of the two rollers 16, the battery cell 7 can be in a horizontal state, the spacing between the battery cell 7 and the upper and lower drying structures is the same, and the sintering effect is uniform.

[0026] The correction structure also includes an extension plate 11, a first electrode 13 is installed on the bottom side of the extension plate 11, an indicator light 12 is installed on the top side of the extension plate 11, and a second electrode 14 is installed on the inclined upper surface of the swing plate 15, and the second electrode 14 is arranged below the first electrode 13. In order to ensure that the surface pressure of the rollers 16 and 7 on both sides is equal during the correction process, it is necessary to ensure that the swing angles of the two swing plates 15 are the same. When the swing plate 15 swings, when the second electrode 14 on the swing plate 15 contacts the first electrode 13 on the bottom side of the extension plate 11, the two indicator lights 12 can flash synchronously, indicating that the swing angles of the two swing plates 15 are the same, which can ensure that the pressure of the top side of the two rollers 16 and the battery cell 7 is the same, and the horizontal state of the battery cell 7 can be adjusted.

[0027] A fixing frame 5 is fixed on one side of the correction frame 2, and an identifier 6 is installed on the bottom side of the fixing frame 5. During the transportation process, the battery cell 7 is carried on 9 on 8. Before correction is required, when the battery cell 7 is transported to the bottom of the crossbeam 2, the battery cell 7 is identified by the identifier 6, which can more accurately feed the sintering furnace.

[0028] The indicator light 12, the first electrode 13, the second electrode 14 and the power supply are connected by wires, the indicator light 12 is connected to the control box 3 through a signal line, the identifier 6 is connected to the control box 3 through a data line, the control box 3 sends a start-stop signal to the movable cylinder 4, and the transportation of the battery cell 7 is identified by the identifier 6. The identification signal is sent to the control box 3, and the control box 3 issues an instruction to the movable cylinder 4, which can realize the descent of the roller 16. During the descent of the roller 16, the swing plate 15 swings. During the swinging process, the second electrode 14 contacts the first electrode 13, which can realize the power-on of the indicator light 12. The power-on signal of the indicator light 12 is sent to the control box 3, which can stop the continued advancement of the movable cylinder 4 and realize the resetting operation of the movable cylinder 4, so as to realize the horizontal correction of the battery cell 7 and ensure that the battery cell 7 is heated evenly.

[0029] In the description of this specification, the basic principles, main features and advantages of the utility model are shown and described above. For those skilled in the art, they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model shall fall within the scope of the utility model claimed for protection.

Claims

1. A sintering furnace feed positioning structure, characterized in that: include: A conveyor frame (1), wherein a rolling and cyclically rotating crawler (8) is arranged inside the conveyor frame (1), ejector pins (9) are symmetrically arranged on the crawler (8), and a correction structure is installed on the conveyor frame (1); The correction structure comprises a correction frame (2), the correction frame (2) is fixed on the top side of the conveying frame (1), a movable cylinder (4) is installed at the middle position of the top side of the crossbeam of the correction frame (2), an action rod of the movable cylinder (4) passes through the crossbeam of the correction frame (2), a movable plate (10) is fixed at the bottom end of the action rod, a connecting seat is symmetrically fixed to the bottom side of the movable plate (10), and a swing plate (15) is rotatably installed in the connecting seat through a pin shaft, A swing plate (15), wherein a mounting groove is provided at the bottom end of the swing plate (15), and a roller (16) is rotatably mounted in the mounting groove via a wheel shaft; A spring (17) is fixedly connected between the two swing plates (15).

2. A sintering furnace feed positioning structure according to claim 1, characterized in that: The ejector pin (9) is of an inclined structure, and the two ejector pins (9) form a symmetrical structure with a concave center.

3. A sintering furnace feed positioning structure according to claim 2, characterized in that: A battery sheet (7) is arranged on the crawler (8), and the battery sheet (7) is mounted on the inclined surface of the ejector pin (9).

4. A sintering furnace feed positioning structure according to claim 3, characterized in that: The correction structure further comprises an extension plate (11), a first electrode (13) being mounted on the bottom side of the extension plate (11), an indicator light (12) being mounted on the top side of the extension plate (11), and a second electrode (14) being mounted on the inclined upper surface of the swing plate (15), the second electrode (14) being arranged below the first electrode (13).

5. A sintering furnace feed positioning structure according to claim 4, characterized in that: A fixing frame (5) is fixed to one side of the correction frame (2), and an identifier (6) is installed on the bottom side of the fixing frame (5).

6. A sintering furnace feed positioning structure according to claim 5, characterized in that: The indicator light (12), the first electrode (13), the second electrode (14) and the power supply are connected via wires, the indicator light (12) is connected to the control box (3) via a signal line, the identifier (6) is connected to the control box (3) via a data line, and the control box (3) sends a start / stop signal to the movable cylinder (4).

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