Conductive silver paste preparation device

Abstract

The invention relates to the technical field of conductive silver paste processing, in particular to a conductive silver paste preparation device which comprises a preparation tank, a stirring rod is arranged in the preparation tank, an air compression seat is fixedly connected to the preparation tank, a feeding seat is fixedly connected to one side of the preparation tank in a penetrating mode, and a cover plate is arranged on the feeding seat in a sliding fit mode. The inner wall, located at the feeding seat, of the preparation tank is rotationally connected with a transmission mechanism, the interior of the feeding seat is rotationally connected with an isolation plate, the isolation plate is fixedly connected with a placement sleeve, an acetone bottle is placed in the placement sleeve, and the isolation plate is rotationally connected with a limiting blowing mechanism. When the cover plate is closed, the isolation plate on which the acetone bottle is placed can be driven to automatically turn over, acetone in the acetone bottle is added into the preparation tank, manual feeding is not needed, environmental pollution caused by acetone volatilization can be effectively reduced, the health of operators can be guaranteed, and the production efficiency, the feeding accuracy, the safety and the cost effectiveness can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of conductive silver paste processing, and in particular to a conductive silver paste preparation device. Background Art

[0002] Conductive silver paste is a conductive material composed of silver powder, resin, solvent and additives, which is widely used in electronics, photovoltaics, semiconductors and other fields, mainly used to provide current conduction function. Its core component is silver powder. Because silver has extremely high conductivity, silver paste also has good conductive properties.

[0003] The document with the prior art announcement number CN118577188B provides a low-temperature curing environmentally friendly conductive silver paste preparation device. This technology realizes the spray mixing and grinding rolling of the conductive silver paste mixed preparation material. At the same time, the swinging process of the present invention is continuous, that is, the conductive silver paste mixed preparation material can be sprayed, mixed and ground and rolled back and forth continuously. At the same time, the present invention adopts a piston staggered material pushing and collecting process, which can meet the rapid pushing and collecting of the paste material. However, the prior art still has certain deficiencies in the feeding link.

[0004] When the prior art is used, various raw materials need to be added through a feeding tube, wherein the raw material of the conductive silver paste includes an organic solvent, acetone. Since the prior art requires manual addition of acetone through the feeding tube, acetone will evaporate into the air, causing environmental pollution and harm to the health of operators.

[0005] In summary, the prior art lacks a technology for protectively adding acetone, a raw material of conductive silver paste. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a conductive silver paste preparation device.

[0007] In order to achieve the above purpose, the technical solution adopted by the present invention is: a conductive silver paste preparation device, including a preparation tank, a stirring rod is arranged in the preparation tank, a compressed air seat is fixedly connected to the preparation tank, a feeding seat is fixedly connected to one side of the preparation tank, a cover plate is slidably provided on the feeding seat, a transmission mechanism is rotatably connected to the inner wall of the preparation tank located at the feeding seat, an isolation plate is rotatably provided in the feeding seat, a placement sleeve is fixedly connected to the isolation plate, an acetone bottle is placed in the placement sleeve, and a limited blowing mechanism is rotatably provided on the isolation plate.

[0008] Preferably, a rotating sleeve is provided in sliding contact with the outer wall of the top end of the stirring rod, and the rotating sleeve is rotatably connected to the inner wall of the top end of the preparation tank through penetration, an electric push rod A is fixedly connected to the inner wall of the rotating sleeve, and the output end of the electric push rod A is fixedly connected to the inner wall of the top end of the stirring rod, and a motor is fixedly connected to one end of the rotating sleeve located outside the preparation tank, and the motor is fixedly connected to the preparation tank.

[0009] Preferably, a turntable is fixedly connected to the outer wall of the rotating sleeve located in the preparation tank, and a plurality of conical blocks are fixedly connected to the top surface of the turntable in an annular structure.

[0010] Preferably, the input end of the air compressor seat is connected to the inner wall of the preparation tank, and an air compressor plate is slidingly provided through the inner wall of the air compressor seat. A spring is fixedly connected to the air compressor plate, and the other end of the spring is fixedly connected to the inner wall of the air compressor seat. A contact plate is fixedly connected to the outer end of the air compressor plate.

[0011] Preferably, a rotating rod is rotatably connected to the bottom end of the air compressor seat, one end of the rotating rod is slidably contacted with the contact plate, one end of the rotating rod connected to the air compressor seat is fixedly connected with a gear, one side of the gear is meshingly provided with a rack, the rack is slidably matched with the preparation tank, one end of the rack located in the preparation tank is fixedly connected with an electric push rod C, and the other end of the electric push rod C is slidably contacted with the conical block.

[0012] Preferably, an electric push rod B is fixedly connected to one end of the cover plate, the other end of the electric push rod B is fixedly connected to the inner wall of the feeding seat, and a transmission rack is fixedly connected to one side of the cover plate.

[0013] Preferably, the transmission mechanism includes a universal joint, which is rotatably connected to the inner wall of the preparation tank, and the end of the universal joint located inside the preparation tank is fixedly connected to a worm, and the end of the universal joint located outside the preparation tank is fixedly connected to a transmission wheel, and the transmission wheel is meshed with a transmission rack for transmission.

[0014] Preferably, the middle part of the isolation plate is provided with a hollow structure, an air duct is connected and fixedly provided through the middle part of the isolation plate, the other end of the air duct passes through the inner wall of the feeding seat and extends into the preparation tank and is fixedly connected with a worm gear, the worm gear and the worm are meshingly transmitted, and one end of the air duct located in the preparation tank is rotatably connected to the output end of the compressed air seat.

[0015] Preferably, the limiting blowing mechanism includes a rotating tube, which is rotatably connected to the inner wall of the middle part of the isolation plate through the rotating tube, and a plurality of limiting tubes are fixedly connected to the top of the rotating tube, and the limiting tube is in sliding contact with the mouth of the acetone bottle, and a nozzle is fixedly connected to one end of the limiting tube located at the mouth of the acetone bottle, and a driven wheel is fixedly connected to one end of the rotating tube located at the inner wall of the middle part of the isolation plate, and a driving wheel is meshingly transmitted on one side of the driven wheel, and a rotating shaft is fixedly connected on one side of the driving wheel, and the rotating shaft is rotatably connected to the inner wall of the isolation plate through the rotating tube, and an adjusting wheel is fixedly connected to the outer end of the rotating shaft, and the adjusting wheel is meshingly transmitted with an arc-shaped rack fixedly connected to the inner wall of the feeding seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a transmission mechanism, the isolation plate with the acetone bottle can be automatically turned over while the cover is closed, and the acetone in the acetone bottle is added to the preparation tank without manual feeding. This can not only effectively reduce the environmental pollution caused by acetone volatilization and protect the health of operators, but also improve production efficiency, feeding accuracy, safety and cost-effectiveness. In addition, automated operation can further optimize the production process, ensure quality consistency, and improve the overall production level; 2. By setting up the isolation plate and the limited blowing mechanism, it can not only effectively isolate the preparation tank from the external environment to prevent pollution and gas leakage, but also ensure the stability of the acetone bottle when it is turned over and tipped, thus improving the safety, accuracy and automation level of the production process. In addition, it reduces manual operation, improves production efficiency, avoids waste of resources, and provides a safer working environment for operators; 3. By setting up an air pressure seat and a limited air blowing mechanism, after pouring the acetone in the acetone bottle, the air pressure plate can be driven to move back and forth while the conductive silver paste is prepared by rotating the stirring rod, so that the nozzle blows air into the acetone bottle. The air pressure can cause the acetone remaining on the inner wall of the acetone bottle to be poured out faster, reducing the time and operation steps of manual pouring and shaking the bottle, thereby greatly improving the efficiency of acetone pouring, being able to more thoroughly empty the acetone in the bottle, reducing the acetone remaining on the bottle wall, and avoiding the waste of acetone and resource loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a conductive silver paste preparation device of the present invention;

[0019] Figure 2 It is a partial cross-sectional schematic diagram of the overall structure of a conductive silver paste preparation device of the present invention;

[0020] Figure 3 It is a partial cross-sectional schematic diagram of a part of the structure of a conductive silver paste preparation device of the present invention;

[0021] Figure 4 It is a partial cross-sectional expansion schematic diagram of a stirring rod structure of a conductive silver paste preparation device of the present invention;

[0022] Figure 5 It is a schematic cross-sectional view of a gas pressure seat structure of a conductive silver paste preparation device of the present invention;

[0023] Figure 6 This is a schematic diagram of the cover plate and transmission mechanism structure of a conductive silver paste preparation device of the present invention;

[0024] Figure 7 It is a partial cross-sectional expansion schematic diagram of the structure of a feeding seat and a separation plate of a conductive silver paste preparation device of the present invention;

[0025] Figure 8 The present invention is a schematic diagram of the structure of a limited blowing mechanism of a conductive silver paste preparation device.

[0026] The following are marked in the figure: 1. preparation tank; 2. stirring rod; 3. air pressure seat; 4. feeding seat; 5. cover plate; 6. transmission mechanism; 7. isolation plate; 8. placement sleeve; 9. acetone bottle; 10. limited blowing mechanism; 201. rotating sleeve; 202. electric push rod A; 203. motor; 204. turntable; 205. conical block; 301. air pressure plate; 302. spring; 303. contact plate; 304. rotating rod; 305. Gear; 306, rack; 307, electric push rod C; 501, electric push rod B; 502, transmission rack; 601, universal joint; 602, worm; 603, transmission wheel; 701, air guide tube; 702, worm wheel; 1001, rotating tube; 1002, limiting tube; 1003, nozzle; 1004, driven wheel; 1005, driving wheel; 1006, rotating shaft; 1007, adjusting wheel; 401, arc rack. DETAILED DESCRIPTION

[0027] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0028] like Figure 1-Figure 8 The conductive silver paste preparation device shown includes a preparation tank 1, a stirring rod 2 is arranged in the preparation tank 1, a compressed air seat 3 is fixedly connected to the preparation tank 1, a feeding seat 4 is fixedly connected to one side of the preparation tank 1, a cover plate 5 is slidably provided on the feeding seat 4, a transmission mechanism 6 is rotatably connected to the inner wall of the preparation tank 1 located at the feeding seat 4, an isolation plate 7 is rotatably provided in the feeding seat 4, a placement sleeve 8 is fixedly connected to the isolation plate 7, an acetone bottle 9 is placed in the placement sleeve 8, and a limited blowing mechanism 10 is rotatably provided on the isolation plate 7.

[0029] like Figure 4 As shown, a rotating sleeve 201 is provided in sliding contact with the outer wall of the top end of the stirring rod 2, and the rotating sleeve 201 is rotatably connected to the inner wall of the top end of the preparation tank 1, and an electric push rod A202 is fixedly connected to the inner wall of the rotating sleeve 201, and the output end of the electric push rod A202 is fixedly connected to the inner wall of the top end of the stirring rod 2, and a motor 203 is fixedly connected to one end of the rotating sleeve 201 located outside the preparation tank 1, and the motor 203 is fixedly connected to the preparation tank 1. The electric push rod A202 can adjust the stirring rod 2, so that the stirring rod 2 stirs various positions of the preparation tank 1.

[0030] A rotating disk 204 is fixedly connected to the outer wall of the rotating sleeve 201 located in the preparation tank 1 , and a plurality of conical blocks 205 are fixedly connected to the top surface of the rotating disk 204 in an annular structure.

[0031] like Figure 5 As shown, the input end of the air compressor seat 3 is connected to the inner wall of the preparation tank 1, and the inner wall of the air compressor seat 3 is penetrated by a compression plate 301 that is slidably matched. A spring 302 is fixedly connected to the compression plate 301, and the other end of the spring 302 is fixedly connected to the inner wall of the air compressor seat 3, and a contact plate 303 is fixedly connected to the outer end of the air compressor plate 301. A one-way butterfly valve is installed in the output and input ends of the air compressor seat 3. The electric push rod C307 will drive the connected rack 306 to move up, so that the rack 306 drives the rotating rod 304 connected to the gear 305 to rotate, so that the other end of the rotating rod 304 contacts the contact plate 303, and drives the air compressor plate 301 to move up, and the gas in the air compressor seat 3 is injected into the air guide pipe 701 through the output end, and then sprayed out through the nozzle 1003 on the limit tube 1002. The spring 302 enables the air compressor plate 301 to automatically move down to evacuate.

[0032] The bottom end of the compressed air seat 3 is rotatably connected with a rotating rod 304, one end of the rotating rod 304 is in sliding contact with the contact plate 303, one end of the rotating rod 304 connected to the compressed air seat 3 is fixedly connected with a gear 305, one side of the gear 305 is meshed with a rack 306, the rack 306 is slidably matched with the preparation tank 1, one end of the rack 306 located in the preparation tank 1 is fixedly connected with an electric push rod C307, and the other end of the electric push rod C307 is in sliding contact with the conical block 205. The output end of the electric push rod C307 is moved out and contacts the turntable 204, and then when the motor 203 is used to drive the stirring rod 2 to rotate for stirring, the turntable 204 on the rotating sleeve 201 will rotate, and at this time, the conical block 205 on the turntable 204 will contact and lift the electric push rod C307.

[0033] like Figure 6As shown, an electric push rod B501 is fixedly connected to one end of the cover plate 5, and the other end of the electric push rod B501 is fixedly connected to the inner wall of the feeding seat 4, and a transmission rack 502 is fixedly connected to one side of the cover plate 5. The electric push rod B501 is used to drive the connected cover plate 5 to open, and then the opened acetone bottle 9 is placed in the placement sleeve 8, and then when the cover plate 5 is closed, the transmission rack 502 drives the transmission wheel 603 to rotate.

[0034] like Figure 6 As shown, the transmission mechanism 6 includes a universal joint 601, which is rotatably connected to the inner wall of the preparation tank 1, and a worm 602 is fixedly connected to one end of the universal joint 601 located inside the preparation tank 1, and a transmission wheel 603 is fixedly connected to one end of the universal joint 601 located outside the preparation tank 1, and the transmission wheel 603 is meshed with the transmission rack 502 for transmission. The transmission wheel 603 drives the worm 602 connected to the universal joint 601 to rotate, so that the worm 602 drives the worm wheel 702 to rotate, so that the worm wheel 702 drives the connected air guide tube 701 to rotate, so that the air guide tube 701 drives the connected isolation plate 7 to flip.

[0035] By setting the transmission mechanism 6, the isolation plate 7 with the acetone bottle 9 placed thereon can be automatically turned over while the cover plate 5 is closed, and the acetone in the acetone bottle 9 is added to the preparation tank 1 without manual feeding, which can not only effectively reduce the environmental pollution caused by the volatilization of acetone and protect the health of the operators, but also improve production efficiency, feeding accuracy, safety and cost-effectiveness. In addition, automated operation can further optimize the production process, ensure quality consistency, and improve the overall production level.

[0036] like Figure 7 As shown, the middle part of the isolation plate 7 is a hollow structure, and an air duct 701 is fixedly connected through the middle part of the isolation plate 7. The other end of the air duct 701 passes through the inner wall of the feeding seat 4 and extends into the preparation tank 1 and is fixedly connected with a worm gear 702. The worm gear 702 is meshed with the worm 602 for transmission. One end of the air duct 701 located in the preparation tank 1 is rotatably connected to the output end of the compressed air seat 3.

[0037] like Figure 8As shown, the limiting blowing mechanism 10 includes a rotating tube 1001, which is rotatably connected to the inner wall of the middle part of the isolation plate 7 through the rotating tube 1001, and a plurality of limiting tubes 1002 are fixedly connected to the top of the rotating tube 1001, and the limiting tube 1002 is arranged in sliding contact with the bottle mouth of the acetone bottle 9, and a nozzle 1003 is fixedly connected to one end of the limiting tube 1002 located at the bottle mouth of the acetone bottle 9, and a driven wheel 1004 is fixedly connected to one end of the rotating tube 1001 located at the inner wall of the middle part of the isolation plate 7, and a driving wheel 1005 is meshingly transmitted on one side of the driven wheel 1004, and a rotating shaft 1006 is fixedly connected on one side of the driving wheel 1005, and the rotating shaft 1006 is rotatably connected to the inner wall of the isolation plate 7 through the rotating shaft 1006, and an adjusting wheel 1007 is fixedly connected to the outer end of the rotating shaft 1006, and the adjusting wheel 1007 is meshingly transmitted with the arc-shaped rack 401 fixedly connected to the inner wall of the feeding seat 4.

[0038] When the adjusting wheel 1007 is meshed with the arc-shaped rack 401, the connected rotating shaft 1006 is driven to rotate, so that the rotating shaft 1006 drives the driving wheel 1005 to rotate, and the driving wheel 1005 drives the rotating tube 1001 connected to the driven wheel 1004 to rotate, so that the multiple limiting tubes 1002 on the rotating tube 1001 rotate to the bottle mouth of the acetone bottle 9 to limit it.

[0039] Working principle: when it is necessary to prepare the conductive silver paste, acetone needs to be poured into the preparation tank 1, and the connected cover plate 5 is first driven to open by the electric push rod B501, and then the opened acetone bottle 9 is placed in the placement sleeve 8, and then when the cover plate 5 is closed, the transmission rack 502 drives the transmission wheel 603 to rotate, so that the transmission wheel 603 drives the worm 602 connected to the universal joint 601 to rotate, so that the worm 602 drives the worm wheel 702 to rotate, so that the worm wheel 702 drives the connected air guide tube 701 to rotate, so that the air guide tube 701 drives the connected isolation plate 7 to flip 180 degrees, so that the mouth of the acetone bottle 9 faces downward to pour the acetone;

[0040] At this time, when the adjusting wheel 1007 is meshed with the arc-shaped rack 401, the connected rotating shaft 1006 will be driven to rotate, so that the rotating shaft 1006 drives the driving wheel 1005 to rotate, so that the driving wheel 1005 drives the rotating tube 1001 connected to the driven wheel 1004 to rotate, so that the multiple limiting tubes 1002 on the rotating tube 1001 rotate to the bottle mouth of the acetone bottle 9 to limit it, so that after the isolation plate 7 is turned over, the acetone bottle 9 in the placement sleeve 8 will not fall out, ensuring stability during tipping;

[0041] Then, the isolation plate 7 drives the acetone bottle 9 to flip to the lower side to pour the acetone. After the pouring is completed, the output end of the electric push rod C307 is moved out and contacts the turntable 204. Then, when the motor 203 is used to drive the stirring rod 2 to rotate for stirring, the turntable 204 on the rotating sleeve 201 will rotate. At this time, the conical block 205 on the turntable 204 will contact and lift the electric push rod C307. At this time, the electric push rod C307 will drive the connected rack 306 to move upward, so that the rack 306 drives the rotating rod 304 connected to the gear 305 to rotate, so that the other end of the rotating rod 304 contacts the contact plate 303, and drives the air pressure plate 301 to move upward, and the gas in the air pressure seat 3 is injected into the air guide pipe 701 through the output end, and then sprayed out through the nozzle 1003 on the limit tube 1002, and sprayed on the inside of the acetone bottle 9, so that the acetone remaining on the inner wall of the acetone bottle 9 can flow out quickly.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A conductive silver paste preparation device, comprising a preparation tank (1), characterized in that: The preparation tank (1) is provided with a stirring rod (2), the preparation tank (1) is fixedly connected with a compressed air seat (3), a feeding seat (4) is fixedly connected through one side of the preparation tank (1), a cover plate (5) is slidably provided on the feeding seat (4), a transmission mechanism (6) is rotatably connected to the inner wall of the preparation tank (1) located at the feeding seat (4), an isolation plate (7) is rotatably provided in the feeding seat (4), a placement sleeve (8) is fixedly connected to the isolation plate (7), an acetone bottle (9) is placed in the placement sleeve (8), and a limited position blowing mechanism (10) is rotatably provided on the isolation plate (7).

2. A conductive silver paste preparation device according to claim 1, characterized in that: A rotating sleeve (201) is provided in sliding contact with the outer wall of the top end of the stirring rod (2); the rotating sleeve (201) is rotatably connected to the inner wall of the top end of the preparation tank (1); an electric push rod A (202) is fixedly connected to the inner wall of the rotating sleeve (201); an output end of the electric push rod A (202) is fixedly connected to the inner wall of the top end of the stirring rod (2); a motor (203) is fixedly connected to one end of the rotating sleeve (201) located outside the preparation tank (1); and the motor (203) is fixedly connected to the preparation tank (1).

3. A conductive silver paste preparation device according to claim 2, characterized in that: The outer wall of the rotating sleeve (201) located inside the preparation tank (1) is fixedly connected to a rotating disk (204), and the top surface of the rotating disk (204) is annularly structured and fixedly connected to a plurality of conical blocks (205).

4. A conductive silver paste preparation device according to claim 3, characterized in that: The input end of the air compressor seat (3) is connected to the inner wall of the preparation tank (1), and a air compressor plate (301) is slidably provided through the inner wall of the air compressor seat (3). A spring (302) is fixedly connected to the air compressor plate (301), and the other end of the spring (302) is fixedly connected to the inner wall of the air compressor seat (3). A contact plate (303) is fixedly connected to the outer end of the air compressor plate (301).

5. A conductive silver paste preparation device according to claim 4, characterized in that: The bottom end of the air compression seat (3) is rotatably connected to a rotating rod (304), one end of the rotating rod (304) is slidably contacted with the contact plate (303), one end of the rotating rod (304) connected to the air compression seat (3) is fixedly connected to a gear (305), one side of the gear (305) is meshingly provided with a rack (306), the rack (306) is slidably matched with the preparation tank (1), one end of the rack (306) located in the preparation tank (1) is fixedly connected to an electric push rod C (307), and the other end of the electric push rod C (307) is slidably contacted with the conical block (205).

6. The conductive silver paste preparation device according to claim 1, characterized in that: An electric push rod B (501) is fixedly connected to one end of the cover plate (5), and the other end of the electric push rod B (501) is fixedly connected to the inner wall of the feeding seat (4). A transmission rack (502) is fixedly connected to one side of the cover plate (5).

7. The conductive silver paste preparation device according to claim 6, characterized in that: The transmission mechanism (6) comprises a universal joint (601), the universal joint (601) being rotatably connected to the inner wall of the preparation tank (1), one end of the universal joint (601) located inside the preparation tank (1) being fixedly connected to a worm (602), and one end of the universal joint (601) located outside the preparation tank (1) being fixedly connected to a transmission wheel (603), the transmission wheel (603) being meshed with a transmission rack (502) for transmission.

8. The conductive silver paste preparation device according to claim 1, characterized in that: The middle part of the isolation plate (7) is provided with a hollow structure, and an air guide tube (701) is fixedly provided through the middle part of the isolation plate (7), the other end of the air guide tube (701) passes through the inner wall of the feeding seat (4) and extends into the preparation tank (1) and is fixedly provided with a worm gear (702), the worm gear (702) and the worm (602) are meshed and transmitted, and one end of the air guide tube (701) located in the preparation tank (1) is rotatably connected to the output end of the air pressure seat (3).

9. The conductive silver paste preparation device according to claim 1, characterized in that: The position-limiting blowing mechanism (10) comprises a rotating tube (1001), the rotating tube (1001) being rotatably connected to the middle inner wall of the isolation plate (7), a plurality of position-limiting tubes (1002) being fixedly connected to the top of the rotating tube (1001), the position-limiting tubes (1002) being in sliding contact with the mouth of the acetone bottle (9), a nozzle (1003) being fixedly connected to one end of the position-limiting tube (1002) located at the mouth of the acetone bottle (9), the rotating tube (1001) being located at the middle inner wall of the isolation plate (7), A driven wheel (1004) is fixedly connected to one end of the driven wheel (1004), a driving wheel (1005) is meshingly connected to one side of the driven wheel (1004), a rotating shaft (1006) is fixedly connected to one side of the driving wheel (1005), the rotating shaft (1006) is rotatably connected to the inner wall of the isolation plate (7), an adjusting wheel (1007) is fixedly connected to the outer end of the rotating shaft (1006), and the adjusting wheel (1007) is meshingly connected to the arc-shaped rack (401) fixedly connected to the inner wall of the feeding seat (4).

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