Conveying device of sintering furnace and sintering furnace

Abstract

The utility model relates to the technical field of sintering furnaces, in particular to a conveying device of a sintering furnace and the sintering furnace, the conveying device comprises a conveying table, a moving frame is movably installed at the bottom of the conveying table, guide rails are arranged at the front end and the rear end of the bottom of the moving frame, and moving wheels are rotatably connected to the four corners of the bottom of the moving frame and located on the guide rails; a plate chain type conveying belt is installed in the conveying table, frame blocks are fixedly connected to the left end and the right end of the outer side of the plate chain type conveying belt correspondingly, limiting plates are movably installed at the left end and the right end of the top of the conveying table correspondingly, and adjusting rods are fixedly connected to the front ends and the rear ends of the two limiting plates correspondingly. Compared with an existing silicon wafer conveying mode of the sintering furnace, the silicon wafer conveying device has the advantages that stable conveying of silicon wafers can be guaranteed through the design, conveying efficiency is greatly improved, and the silicon wafer conveying device is high in practicability and high in practicability. And the sintering efficiency of the sintering furnace is further improved.

Description

Technical Field

[0001] This utility model relates to the field of sintering furnace technology, specifically to a conveying device for a sintering furnace and a sintering furnace. Background Technology

[0002] In the process of producing silicon wafers for solar cells, such as in the process of metallizing silicon wafers, metal electrodes need to be printed on the surface of the silicon wafer. Finally, the metal electrodes are sintered in a sintering furnace to form a good ohmic contact with the silicon wafer. Sintering is a crucial step in enabling the crystalline silicon substrate to truly have photoelectric conversion function. Therefore, the performance of the sintering equipment directly affects the quality of the solar cells.

[0003] In existing sintering furnaces, when transferring silicon wafers, the wafers are first laid flat on a wafer rack. The bottom of the rack is equipped with a guide rail, which moves the rack to the position of the sintering furnace. The wafers are then placed into the furnace one by one, which greatly reduces the number of wafers transferred in a short period of time, thereby reducing the sintering efficiency of the furnace.

[0004] Therefore, it is of great importance to design a conveying device and a sintering furnace to address the aforementioned deficiencies. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention designs a conveying device and a sintering furnace. The conveying device and sintering furnace aim to solve the technical problem that, under existing technologies, the number of silicon wafers conveyed in a sintering furnace is greatly reduced within a time period, thus lowering the sintering efficiency of the sintering furnace.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The conveying device of the sintering furnace includes a conveying platform, a movable frame is movably installed at the bottom of the conveying platform, guide rails are provided at both the front and rear ends of the bottom of the movable frame, and movable wheels are rotatably connected at the four corners of the bottom of the movable frame and on the guide rails.

[0008] The transmission platform is equipped with a plate chain conveyor belt. The left and right ends of the outer side of the plate chain conveyor belt are fixedly connected to the frame blocks. The left and right ends of the top of the transmission platform are movably installed with limit plates. The front and rear ends of the two sets of limit plates are fixedly connected with adjusting rods. Multiple sets of adjusting rods are slidably connected to the transmission platform through adjusting frames. The adjusting frames are internally threaded with fixing knobs, and the bottom end of the central shaft of the fixing knobs abuts against the outer side of the adjusting rods.

[0009] As a preferred embodiment of this utility model, a geared motor is fixedly installed at the front end of the right side of the transmission platform, and the geared motor is connected to the plate chain conveyor belt for transmission.

[0010] As a preferred embodiment of this utility model, the inner sides of the multiple sets of frame blocks are provided with equally spaced interval slots, and the opposite sides of the two sets of limiting plates are rotatably connected to multiple sets of auxiliary wheels.

[0011] As a preferred embodiment of this utility model, a dust removal cover is fixedly installed on the front of the transmission table. Two sets of exhaust vents are opened at one end of the dust removal cover inside the transmission table. An exhaust fan is fixedly installed on the right side of the dust removal cover, and a filter screen is installed at the connection between the exhaust fan and the dust removal cover. A collection box is slidably connected to the bottom of the inside of the dust removal cover.

[0012] As a preferred embodiment of this utility model, a hydraulic cylinder is installed in the middle of the inner side of the movable frame, and a connecting frame is installed on the output end of the hydraulic cylinder. The inner side of the connecting frame is rotatably connected to the movable frame through a folding frame. Movable slots are provided at both the left and right ends of the top of the connecting frame, and pulleys are rotatably connected at the bottom of the transmission table and at both the front and rear ends located inside the movable slots.

[0013] As a preferred embodiment of this utility model, the two ends of the hydraulic cylinder are rotatably connected to the connecting frame and the moving frame, respectively. A rotating shaft is fixedly connected to the top of the folding frame, and guide wheels are rotatably connected to both the left and right ends of the rotating shaft. A limit sleeve is fixedly connected to the bottom of the connecting frame and outside the guide wheels, and a rubber support block is fixedly connected to the bottom of the folding frame.

[0014] This utility model also provides a sintering furnace, including the conveying device of the sintering furnace described in any one of the above-mentioned claims.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, through the coordinated design of the transfer platform, the moving frame, the guide rail, and the moving wheels, when transferring silicon wafers, the worker first moves the moving frame on the guide rail using the moving wheels, moving the transfer platform to the position of the sintering furnace. The silicon wafer is then placed on the plate chain conveyor belt, and its left and right ends are positioned by the limiting plates. The plate chain conveyor belt is then started, and the worker only needs to continuously place silicon wafers on it until the belt is almost full, at which point the conveying stops. The transfer platform is then raised to align with the furnace opening of the sintering furnace, and the plate chain conveyor belt is started again to stably transfer the silicon wafers into the sintering furnace. By limiting the silicon wafers during the transfer process, not only is stable transfer of the silicon wafers ensured, but the transfer efficiency is also greatly improved, thereby increasing the sintering efficiency of the sintering furnace. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the transmission station structure of this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the internal structure of the impurity removal hood of this utility model;

[0021] Figure 5 This is a schematic diagram of the mobile frame structure of this utility model.

[0022] In the diagram: 1. Conveyor table; 101. Plate chain conveyor belt; 102. Frame block; 103. Limiting plate; 104. Adjusting rod; 105. Adjusting frame; 106. Fixing knob; 107. Gear motor; 108. Spacing groove; 109. Auxiliary wheel; 110. Impurity removal cover; 111. Exhaust vent; 112. Exhaust fan; 113. Collection box; 2. Moving frame; 201. Hydraulic cylinder; 202. Connecting frame; 203. Folding frame; 204. Moving groove; 205. Pulley; 206. Rotating shaft; 207. Guide wheel; 208. Limiting sleeve; 209. Rubber support block; 3. Guide rail; 4. Moving wheel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figures 1-5 This utility model provides a technical solution:

[0026] The conveying device of the sintering furnace includes a conveying platform 1, a movable frame 2 is movably installed at the bottom of the conveying platform 1, guide rails 3 are provided at both the front and rear ends of the bottom of the movable frame 2, and movable wheels 4 are rotatably connected at the four corners of the bottom of the movable frame 2 and on the guide rails 3.

[0027] First, a plate chain conveyor belt 101 is installed inside the transfer table 1. Frame blocks 102 are fixedly connected to both the left and right ends of the plate chain conveyor belt 101. Limiting plates 103 are movably installed on both the left and right ends of the top of the transfer table 1. Adjusting rods 104 are fixedly connected to the front and rear ends of the two sets of limiting plates 103. Multiple sets of adjusting rods 104 are slidably connected to the transfer table 1 via adjusting frames 105. A fixing knob 106 is threaded inside the adjusting frame 105, and the bottom end of the central shaft of the fixing knob 106 abuts against the outer side of the adjusting rod 104. When transferring silicon wafers, the worker first moves the moving frame 2 on the guide rail 3 using the moving wheels 4, moving the transfer table 1 to the position of the sintering furnace. Then, the fixing knob 106 is loosened to release the fixing of the adjusting rods 104. This allows the adjusting rod 104 to slide inside the adjusting frame 105, enabling the two sets of limiting plates 103 to adjust their positions. The silicon wafers are placed on the plate chain conveyor belt 101 and positioned at both ends by the limiting plates 103. The adjusting rod 104 is then fixed, and the plate chain conveyor belt 101 is started again. The worker only needs to continuously place silicon wafers on the plate chain conveyor belt 101 until the belt is almost full, then stop the conveying. The transfer table 1 is then raised to align with the furnace opening of the sintering furnace, and the plate chain conveyor belt 101 is started again to stably transfer the silicon wafers into the sintering furnace. By limiting the silicon wafers during the transfer process, not only is stable transfer of the silicon wafers guaranteed, but the transfer efficiency is also greatly improved, thereby improving the sintering efficiency of the sintering furnace.

[0028] Furthermore, a geared motor 107 is fixedly installed at the front end of the right side of the transmission station 1, and the geared motor 107 is connected to the plate chain conveyor belt 101 for transmission, thereby driving the plate chain conveyor belt 101 to transport silicon wafers.

[0029] Then, the inner sides of the multiple sets of support blocks 102 are evenly spaced with interval slots 108, and the opposite sides of the two sets of limiting plates 103 are rotatably connected with multiple sets of auxiliary wheels 109. When the silicon wafer is placed on the plate chain conveyor belt 101, it is raised and transported by the support blocks 102, and the contact area between the plate chain conveyor belt 101 and the silicon wafer is further reduced by the interval slots 108, thereby reducing the wear impact on the silicon wafer during the transmission process. At the same time, the auxiliary wheels 109 assist in the transmission and further ensure the transmission stability.

[0030] Furthermore, a cleaning cover 110 is fixedly installed on the front of the transfer table 1. Two sets of exhaust ports 111 are opened at one end of the cleaning cover 110 inside the transfer table 1. An exhaust fan 112 is fixedly installed on the right side of the cleaning cover 110, and a filter screen is installed at the connection between the exhaust fan 112 and the cleaning cover 110. A collection box 113 is slidably connected to the bottom inside the cleaning cover 110. During the transfer process, the exhaust fan 112 is started to continuously draw air from the inside of the transfer table 1. When the plate chain conveyor belt 101 passes through the exhaust port 111, it removes impurities from its surface, thereby preventing impurities from contacting the silicon wafers and affecting the sintering process. After the impurities enter the interior of the cleaning cover 110, they are collected by the collection box 113 for easy processing.

[0031] Secondly, a hydraulic cylinder 201 is installed in the middle of the inner side of the moving frame 2. A connecting frame 202 is installed on the output end of the hydraulic cylinder 201. The inner side of the connecting frame 202 is rotatably connected to the moving frame 2 through a folding frame 203. The left and right ends of the top of the connecting frame 202 are provided with moving grooves 204. The bottom of the transfer table 1 and the front and rear ends located inside the moving grooves 204 are rotatably connected with pulleys 205. After the silicon wafers are spread on the plate chain conveyor belt 101, the hydraulic cylinder 201 is activated to push the connecting frame 202. With the connection of the folding frame 203, the transfer table 1 is stably raised. Then, the transfer table 1 is moved backward in the moving grooves 204 through the pulleys 205 until the transfer table 1 is connected to the furnace mouth of the sintering furnace. This facilitates quick connection and transfer of silicon wafers, meets the automation requirements, and further improves the transfer efficiency and the sintering efficiency of the sintering furnace.

[0032] Finally, the two ends of the hydraulic cylinder 201 are rotatably connected to the connecting frame 202 and the moving frame 2, respectively. The top of the folding frame 203 is fixedly connected to the rotating shaft 206, and the left and right ends of the rotating shaft 206 are rotatably connected to the guide wheels 207. The bottom of the connecting frame 202 and the outer side of the guide wheels 207 are fixedly connected to the limiting sleeve 208. The bottom of the folding frame 203 is fixedly connected to the rubber support block 209. When the hydraulic cylinder 201 pushes the connecting frame 202, the guide wheels 207 at both ends of the rotating shaft 206 roll inside the limiting sleeve 208. This not only improves the adjustment stability of the connecting frame 202, but also limits the adjustment range. At the same time, when the height of the transmission platform 1 is reduced, the rubber support block 209 abuts against the top of the moving frame 2 for auxiliary support, ensuring the stability of the transmission platform 1.

[0033] This utility model also provides a sintering furnace, including a conveying device for the sintering furnace.

[0034] In this embodiment, the specific implementation scenario is as follows: When transferring silicon wafers, the worker first moves the moving frame 2 on the guide rail 3 using the moving wheels 4, moving the transfer table 1 to the position of the sintering furnace. Then, the worker loosens the fixing knob 106 to release the fixing of the adjusting rod 104, allowing the adjusting rod 104 to slide inside the adjusting frame 105, enabling the two sets of limiting plates 103 to adjust their positions. The silicon wafer is then placed on the plate chain conveyor belt 101 and positioned at its left and right ends by the limiting plates 103. The adjusting rod 104 is then fixed, and the plate chain conveyor belt 101 is started. The worker only needs to continuously place silicon wafers on the plate chain conveyor belt 101 until the silicon wafers are transferred to the sintering furnace. When the wafers are almost fully covered, the conveying is stopped. Then, the hydraulic cylinder 201 is activated to push the connecting frame 202. With the connection of the folding frame 203, the conveyor platform 1 is stably raised. Then, the conveyor platform 1 is moved backward in the moving groove 204 by the pulley 205 until the conveyor platform 1 is connected with the furnace opening of the sintering furnace. This facilitates quick connection and transfer of silicon wafers. The plate chain conveyor belt 101 is activated again to stably transfer the silicon wafers into the sintering furnace. The whole operation process is simple and convenient. Compared with the existing method of transferring silicon wafers in sintering furnaces, this utility model can not only ensure the stable transfer of silicon wafers, but also greatly improve the transfer efficiency, thereby improving the sintering efficiency of the sintering furnace.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conveying device for a sintering furnace, comprising a conveyor table (1), characterized in that: The bottom of the transmission platform (1) is movably mounted with a movable frame (2). The front and rear ends of the bottom of the movable frame (2) are provided with guide rails (3). The four corners of the bottom of the movable frame (2) and located on the guide rails (3) are rotatably connected with movable wheels (4). The transmission platform (1) is equipped with a plate chain conveyor belt (101) inside. The left and right ends of the plate chain conveyor belt (101) are fixedly connected to the frame blocks (102). The left and right ends of the top of the transmission platform (1) are movably installed with limit plates (103). The front and rear ends of the two sets of limit plates (103) are fixedly connected with adjusting rods (104). The multiple sets of adjusting rods (104) are slidably connected to the transmission platform (1) through adjusting frames (105). The adjusting frames (105) are threadedly connected with fixing knobs (106), and the bottom end of the central shaft of the fixing knobs (106) abuts against the outside of the adjusting rods (104).

2. The conveying device for the sintering furnace according to claim 1, characterized in that: A geared motor (107) is fixedly installed at the front end of the right side of the transmission platform (1), and the geared motor (107) is connected to the plate chain conveyor belt (101) for transmission.

3. The conveying device for the sintering furnace according to claim 1, characterized in that: The inner sides of the multiple sets of frame blocks (102) are provided with equally spaced interval slots (108), and the opposite sides of the two sets of limiting plates (103) are rotatably connected to multiple sets of auxiliary wheels (109).

4. The conveying device for the sintering furnace according to claim 1, characterized in that: A cleaning cover (110) is fixedly installed on the front of the transmission platform (1). Two sets of exhaust ports (111) are opened at one end of the cleaning cover (110) inside the transmission platform (1). An exhaust fan (112) is fixedly installed on the right side of the cleaning cover (110). A filter screen is installed at the connection between the exhaust fan (112) and the cleaning cover (110). A collection box (113) is slidably connected to the bottom of the cleaning cover (110).

5. The conveying device for the sintering furnace according to claim 1, characterized in that: A hydraulic cylinder (201) is installed in the middle of the inner side of the movable frame (2). A connecting frame (202) is installed on the output end of the hydraulic cylinder (201). The inner side of the connecting frame (202) is rotatably connected to the movable frame (2) through a folding frame (203). The left and right ends of the top of the connecting frame (202) are provided with moving slots (204). The bottom of the transmission table (1) and the front and rear ends located inside the moving slots (204) are rotatably connected with pulleys (205).

6. The conveying device for the sintering furnace according to claim 5, characterized in that: The two ends of the hydraulic cylinder (201) are rotatably connected to the connecting frame (202) and the moving frame (2), respectively. The top of the folding frame (203) is fixedly connected to the rotating shaft (206). The left and right ends of the rotating shaft (206) are rotatably connected to the guide wheel (207). The bottom of the connecting frame (202) and the outside of the guide wheel (207) are fixedly connected to the limiting sleeve (208). The bottom of the folding frame (203) is fixedly connected to the rubber support block (209).

7. A sintering furnace, characterized in that: The conveying device includes the sintering furnace as described in any one of claims 1-6.

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