Small particle dipping surface coating method and coating device

Abstract

A small particle dipping surface coating device includes a feeding device, a turning device, a main machine, a turning device and a feeding device. The feeding device includes a baking section and a cooling section. The baking section is arranged in the front half of the feeding device. The baking section is provided with a baking device. The main machine is composed of a bracket, a fixed seat, a movable seat, a slider and a connecting rod. The fixed seat is fixed on the bracket. The movable seat can be installed on the fixed seat so as to move linearly up and down. The slider can be installed on the movable seat so as to move linearly left and right. The connecting rod can be rotatably installed on the slider. A connecting rod rotation driving device is arranged on the slider. The connecting rod is fixedly connected to the material tray through a coupling mechanism. The device proposes an efficient and stable solution for the surface coating process of small-sized products. It has reference and promotion significance for situations in industrial production where products of different sizes and shapes need to be sprayed and cured on the surface.

Description

Technical Field

[0001] The invention relates to the technical field of flexible conductive connector production equipment, and in particular to a small particle dipping type surface coating device. Background Art

[0002] Flexible conductive connector is a new type of polymer material that is extruded by laminating organic silicone material and silver powder slurry. It has good conductivity, electromagnetic shielding performance, excellent sealing and tensile properties, and can be widely used in 5G communication equipment, automotive electronics, photovoltaic inverters, 3C electronic consumer products and other industries.

[0003] In the current production process of flexible conductive connectors, the coating process of surface silver paste powder is relatively complicated: the side of the cylinder is coated with silver paste by silicone co-extrusion, and the end face needs to undergo two atomization spraying and drying and curing processes to complete the coating. In addition to the complicated process, the uniformity of the thickness is also difficult to control, and the coating efficiency cannot meet the requirements of the expanded production process. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a small particle immersion surface coating device, which proposes an efficient and stable solution for the surface coating method of small-sized products. It has reference and promotion significance for situations in industrial production where surface spraying and curing of products of different sizes and shapes are required.

[0005] The technical solution of the present invention is as follows:

[0006] A small particle dipping surface coating method comprises the following steps: moving a material tray loaded with a flexible conductive connector at a loading station to a grabbing station; stirring slurry in a barrel; grabbing the material tray; dipping the material tray into the slurry in the barrel; swinging the material tray; taking the material tray out of the slurry; rotating the material tray; baking the material tray; and moving the material tray to a unloading station.

[0007] Further, the small particle dipping surface coating method is implemented by a small particle dipping surface coating device;

[0008] The small particle dipping surface coating device includes a feeding device, a turning device, a main machine, a turning device and a feeding device in sequence according to the process. The feeding device includes a baking section and a cooling section. The baking section is arranged in the front half of the feeding device. The baking section is provided with a baking device. The main machine is composed of a bracket, a fixed seat, a movable seat, a slider and a connecting rod. The fixed seat is fixed on the bracket. The movable seat can be installed on the fixed seat in a linear manner up and down. The slider can be installed on the movable seat in a linear manner left and right. The connecting rod is rotatably installed on the slider. A connecting rod rotation driving device is provided on the slider.

[0009] The specific steps of implementing the small particle dip-type surface coating method using the small particle dip-type surface coating device are as follows:

[0010] a. Use the loading equipment to move the tray to the flipping station on the loading side;

[0011] b. Use the turning device to turn the tray over;

[0012] c. Combine the connecting rod of the main machine with the material tray;

[0013] d. Stir the slurry in the barrel to make it uniform;

[0014] e. Immerse the tray into the slurry in the barrel by moving the slider left and right and the movable seat up and down;

[0015] f. Move the slider left and right several times to make the tray swing left and right in the slurry;

[0016] g. Raise the tray to the level away from the slurry;

[0017] h. Use the connecting rod rotation driving device to drive the connecting rod to rotate, and use centrifugal force and rotation acceleration to control the slurry thickness;

[0018] i. After the rotation stops, move the tray to the flipping station on the unloading side, and the connecting rod is disengaged from the tray;

[0019] j. Use a turning device to turn the tray over;

[0020] k. Use the unloading equipment to move the material tray through the baking equipment. The silver paste will be completely solidified and then cooled to room temperature in the unloading section.

[0021] Furthermore, the connecting rod is fixedly connected to the material tray by a combination mechanism; the combination mechanism includes a straight-shaped connecting head arranged at the lower end of the connecting rod and a connecting platform arranged at the top of the material tray, a cylindrical cavity is arranged in the connecting platform, a straight-shaped groove is arranged between the upper surface of the connecting platform and the top surface of the cylindrical cavity, a groove matching the straight-shaped connecting head is arranged on the top surface of the cylindrical cavity, the groove is perpendicular to the straight-shaped groove, a pressing plate is arranged in the cylindrical cavity, and a spring is arranged between the pressing plate and the bottom surface of the cylindrical cavity;

[0022] The specific steps of using the combination mechanism to fix the connecting rod and the tray are as follows:

[0023] a. Move the connecting rod to the top of the material tray, with the straight connector facing the straight slot;

[0024] b. Move the moving seat downward to drive the connecting rod downward so that the straight-line connector is inserted downward into the straight-line groove;

[0025] c. After the slotted connector contacts the pressure plate, continue to press down the compression spring to move the pressure plate downward;

[0026] d. Turn the connecting rod to make the straight connector turn to a vertical state;

[0027] e. The upward moving seat drives the connecting rod upward, and the pressure plate presses the straight connector into the groove under the elastic force of the spring.

[0028] Furthermore, the feeding device is a belt conveyor A, which is provided with two parallel belts that move differently, and the gap between the two belts can accommodate the lower connection table, and the bottom sides of the tray are placed on the two belts;

[0029] The turning device comprises a rotating shaft and an insert rod, the insert rod is fixedly connected to the rotatable rotating shaft, and a plug hole matching with the insert rod is arranged on the material tray;

[0030] The unloading equipment is a belt conveyor B. The belt conveyor A is provided with two parallel belts that move differently. The gap between the two belts can accommodate the lower connecting table. The bottom sides of the tray are placed on the two belts.

[0031] The specific steps of the small particle dip surface coating method are as follows:

[0032] a. Fix the flexible conductive connector on the tray and place the tray at the head of the belt conveyor A or fix the flexible conductive connector on the tray placed at the head of the belt conveyor A;

[0033] b. Operate the belt conveyor A to transport the tray to the tail of the belt conveyor A. At the tail, the tray is inserted on the insertion rod;

[0034] c. Rotate the rotating shaft 180° clockwise, and the tray inserted on the insertion rod will flip as the insertion rod rotates;

[0035] d. Move the connecting rod to the top of the material tray by moving the slider left and right and the movable seat up and down, with the straight connector facing the straight groove;

[0036] e. Move the moving seat downward to drive the connecting rod downward to insert the straight-line connector downward into the straight-line groove;

[0037] f. After the slotted connector contacts the pressure plate, continue to press down the compression spring to move the pressure plate downward;

[0038] g. Turn the connecting rod to make the straight connector turn to a vertical state;

[0039] h. The upward moving seat drives the connecting rod upward, and the pressure plate presses the straight connector into the groove under the elastic force of the spring;

[0040] i. Stir the slurry in the barrel to make it uniform;

[0041] j. Immerse the tray into the slurry in the barrel by moving the slider left and right and the movable seat up and down;

[0042] k. Move the slider left and right several times to make the tray swing left and right in the slurry;

[0043] l. Raise the tray to the level away from the slurry;

[0044] m. Use the connecting rod rotation driving device to drive the connecting rod to rotate, and use centrifugal force and rotation acceleration to control the slurry thickness;

[0045] After the rotation stops, the tray is moved to the unloading side by moving the slider left and right and the movable seat up and down so that the tray is inserted on the insertion rod. The movable seat moves downward to drive the connecting rod downward so that the straight connector presses the pressure plate and the spring downward until the straight connector is out of the groove. The connecting rod is rotated to rotate the straight connector 90°. The movable seat moves upward to drive the connecting rod upward so that the straight connector is out of the straight groove and the connecting table, so that the connecting rod and the tray are disengaged;

[0046] o. Rotate the rotating shaft 180° clockwise, and the tray inserted on the insertion rod will flip as the insertion rod rotates. After flipping, the tray will fall on the belt conveyor B;

[0047] p. Operate the belt conveyor B to transport the tray to the baking equipment. After the silver paste is cured, it will be cooled to room temperature in the unloading section;

[0048] q. Remove the tray from the belt conveyor B and then remove the flexible conductive connector from the tray, or remove the flexible conductive connector from the cooled tray placed at the tail of the belt conveyor B.

[0049] A small particle dipping surface coating device comprises a feeding device, a turning device, a main machine, the turning device and a feeding device. The feeding device comprises a baking section and a cooling section. The baking section is arranged in the front half of the feeding device. The baking section is provided with a baking device. The main machine consists of a bracket, a fixed seat, a movable seat, a slider and a connecting rod. The fixed seat is fixed on the bracket. The movable seat can be installed on the fixed seat so as to move linearly up and down. The slider can be installed on the movable seat so as to move linearly left and right. The connecting rod can be rotatably installed on the slider. A connecting rod rotation driving device is arranged on the slider. The connecting rod is fixedly connected to the material tray by a coupling mechanism.

[0050] Furthermore, the combining mechanism includes a straight-line connector arranged at the lower end of the connecting rod and a connecting platform arranged at the top of the material tray, a cylindrical cavity is arranged in the connecting platform, a straight-line groove is arranged between the upper surface of the connecting platform and the top surface of the cylindrical cavity, a groove matching the straight-line connector is arranged on the top surface of the cylindrical cavity, the groove is perpendicular to the straight-line groove, a pressure plate is arranged in the cylindrical cavity, and a spring is arranged between the pressure plate and the bottom surface of the cylindrical cavity.

[0051] Furthermore, the feeding equipment is a belt conveyor A, which is provided with two parallel belts that move differently. The gap between the two belts can accommodate the connecting platform, and the bottom sides of the material tray are placed on the two belts.

[0052] Furthermore, the flipping device includes a rotating shaft and an insertion rod, the insertion rod is fixedly connected to the rotatable rotating shaft, and a socket matching the insertion rod is provided on the material tray.

[0053] Furthermore, the unloading equipment is a belt conveyor B, and the belt conveyor A is provided with two parallel belts that move differently. The gap between the two belts can accommodate the lower connecting table, and the bottom sides of the material tray are placed on the two belts.

[0054] Furthermore, the connecting rod rotation driving device is a motor, the motor is fixed on the slider, the output shaft of the motor is connected to a driving gear, and a passive gear is arranged on the connecting rod body, and the driving gear cooperates with the passive gear.

[0055] The beneficial effects of the present invention are:

[0056] The present invention discloses a small particle dipping surface coating device, which breaks the thinking limitation of traditional co-extrusion and spraying schemes and adopts a dipping coating scheme. The device integrates process such as thickness control and baking and curing, has high equipment integration and more than doubles production efficiency.

[0057] The present invention discloses a small particle dipping surface coating device, which provides an efficient and stable solution for the surface coating process of small-sized products, and has reference and promotion significance for situations in industrial production where surface spraying and curing of products of different sizes and shapes are required. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention.

[0059] In the attached picture:

[0060] Figure 1 This is a flow chart of a small particle dipping surface coating method of the present invention;

[0061] Figure 2 It is a structural schematic diagram of a small particle dipping surface coating device according to an embodiment of the present invention;

[0062] Figure 3 It is a structural schematic diagram of a main machine of a small particle dipping surface coating device according to an embodiment of the present invention;

[0063] Figure 4 It is a schematic diagram of a connecting structure between a connecting rod and a material tray of a main machine of a small particle dipping type surface coating device according to an embodiment of the present invention;

[0064] Figure 5 for Figure 4 Partial view in the middle A direction;

[0065] Figure 6 for Figure 5 Middle BB section view;

[0066] Figure 7 It is a structural schematic diagram of the flipping device;

[0067] The components represented by the reference numerals in the figure are:

[0068] The present invention includes: 1. a feeding device, 2. a main machine, 2a. a bracket, 2b. a fixed seat, 2c. a movable seat, 2d. a connecting rod, 2d1. a straight connector, 2e. a driving gear, 2f. a motor, 2g. a slider, 3. a feeding device, 4. a baking device, 5. a turning device, 5a. a rotating shaft, 5b. a plugging rod, 6. a material tray, 6a. a connecting table, 6a1. a straight groove, 6a2. a cylindrical cavity, 6a3. a groove, 7. a material barrel, 8. a pressing plate, 9. a spring. DETAILED DESCRIPTION

[0069] like Figure 1 As shown, Figure 1 The present invention is a flow chart of a small particle dipping surface coating method. The small particle dipping surface coating method comprises the following steps: moving the material tray 6 loaded with a flexible conductive connector at the loading station to the grabbing station; stirring the slurry in the barrel 7; grabbing the material tray 6; immersing the material tray 6 in the slurry in the barrel 7; swinging the material tray 6; taking the material tray 6 out of the slurry; rotating the material tray 6; baking the material tray 6; and moving the material tray 6 to the unloading station. Example

[0070] The small particle dipping surface coating method is implemented by a small particle dipping surface coating device;

[0071] like Figure 2 As shown, the small particle immersion surface coating device includes a loading device 1, a turning device 5, a main machine 2, a turning device 5 and a unloading device 3 in sequence according to the process. The unloading device 3 includes a baking section and a cooling section. The baking section is arranged in the front half of the unloading device 3, and the baking section is provided with a baking device 4.

[0072] like Figure 3As shown, the main machine 2 is composed of a bracket 2a, a fixed seat 2b, a movable seat 2c, a slider 2g and a connecting rod 2d. The fixed seat 2b is fixed on the bracket 2a, and the movable seat 2c can be installed on the fixed seat 2b so as to move linearly up and down. Specifically, a track is arranged on the fixed seat 2b, and the movable seat 2c cooperates with the track to move linearly up and down along the track. Further, a gear driven by a motor to rotate is arranged on the fixed seat 2b, and a rack matched with the gear is arranged on the movable seat 2c, and the movable seat 2c can move linearly up and down along the track driven by the motor; the slider 2g can be installed on the movable seat 2c so as to move linearly left and right. The structure of the slider 2g moving linearly left and right on the movable seat 2c is the same as the structure of the movable seat 2c moving linearly up and down on the fixed seat 2b, which will not be repeated herein. At the same time, since this structure should be very common in the prior art and is not the core innovation of the present invention, the detailed structural diagram is not shown in the figure; the connecting rod 2d is rotatably installed on the slider 2g through a bearing, and a connecting rod rotation driving device is arranged on the slider 2g;

[0073] The connecting rod rotation driving device is a motor 2f, which is fixed on the slider 2g. The output shaft of the motor 2f is connected to a driving gear 2e. A passive gear is provided on the connecting rod 2d, and the driving gear 2e cooperates with the passive gear.

[0074] The specific steps of implementing the small particle dip-type surface coating method using the small particle dip-type surface coating device are as follows:

[0075] a. Use the feeding device 1 to move the tray 6 to the flipping station on the feeding side;

[0076] b. Use the turning device 5 to turn over the tray 6;

[0077] c. Combine the connecting rod 2d of the host 2 with the tray 6;

[0078] d. Stirring the slurry in the barrel 7 to make the slurry in the barrel uniform;

[0079] e. By moving the slider 2g left and right and moving the movable seat 2c up and down, the tray 6 is immersed in the slurry in the barrel 7;

[0080] f. Move the slider 2g left and right several times to make the tray 6 swing left and right in the slurry;

[0081] g. Raise the tray 6 to the level of the slurry;

[0082] h. Use the connecting rod rotation driving device to drive the connecting rod to rotate, and use centrifugal force and rotation acceleration to control the slurry thickness;

[0083] i. After the rotation stops, the tray 6 is moved to the flipping station on the unloading side, and the connecting rod 2d is disengaged from the tray 6;

[0084] j. Use the turning device 5 to turn over the tray 6;

[0085] k. Use the unloading device 3 to move the material tray 6 to the baking device 4, and then cool the silver paste to room temperature in the unloading section after solidification. Example

[0086] The small particle dipping surface coating method is to fix the connecting rod 2d and the material tray 6 through a combining mechanism.

[0087] like Figure 4-Figure 6 As shown, the combination mechanism includes a straight connector 2d1 arranged at the lower end of the connecting rod 2d and a connecting platform 6a arranged at the top of the material tray 6, a cylindrical cavity 6a2 is arranged in the connecting platform 6a, a straight groove 6a1 is arranged between the upper surface of the connecting platform 6a and the top surface of the cylindrical cavity 6a2, a groove 6a3 matching the straight connector 2d1 is arranged on the top surface of the cylindrical cavity 6a2, the groove 6a3 is perpendicular to the straight groove 6a1, a pressing plate 8 is arranged in the cylindrical cavity 6a2, and a spring 9 is arranged between the pressing plate 8 and the bottom surface of the cylindrical cavity 6a2;

[0088] The specific steps of using the combining mechanism to fix the connecting rod 2d and the material tray 6 are as follows:

[0089] a. Move the connecting rod 2d to the top of the tray 6, with the straight connector 2d1 facing the straight groove 6a1;

[0090] b. Move the movable seat 2c downward to drive the connecting rod 2d downward to insert the straight connector 2d1 downward into the straight groove 6a1;

[0091] c. After the straight connector 2d1 contacts the pressure plate 8, it continues to press down the compression spring 9 to move the pressure plate 8 downward;

[0092] d. Rotate the connecting rod 2d to turn the straight connector 2d1 to a vertical state;

[0093] e. The upward moving seat 2c drives the connecting rod 2d upward, and the pressure plate 8 presses the straight connector 2d1 into the groove 6a3 under the elastic force of the spring 9. Example

[0094] The feeding device 1 is a belt conveyor A, which is provided with two parallel belts that move differently. The gap between the two belts can accommodate the lower connecting platform 6a, and the bottom sides of the material tray 6 are placed on the two belts;

[0095] like Figure 7As shown, the flipping device 5 includes a rotating shaft 5a and an insertion rod 5b, the insertion rod 5b is fixedly connected to the rotatable rotating shaft 5a, the rotating shaft 5a is installed on a bracket fixed to the ground by means of bearings, etc., a driving motor is connected to one side of the rotating shaft 5a, and the rotating shaft 5a can be driven to rotate by the motor, and a plug hole matching with the insertion rod 5b is provided on the material tray 6;

[0096] The unloading device 3 is a belt conveyor B. The belt conveyor A is provided with two parallel belts that move differently. The gap between the two belts can accommodate the lower connecting platform 6a. The bottom sides of the material tray 6 are placed on the two belts.

[0097] The specific steps of the small particle dip surface coating method are as follows:

[0098] a. Fix the flexible conductive connector on the tray 6 and place the tray 6 at the head of the belt conveyor A or fix the flexible conductive connector on the tray 6 placed at the head of the belt conveyor A;

[0099] b. Operate the belt conveyor A to convey the material tray 6 to the tail of the belt conveyor A. At the tail, the material tray 6 is inserted on the insertion rod 5b;

[0100] c. Rotate the rotating shaft 5a 180° clockwise, and the tray 6 inserted on the insertion rod 5b is flipped as the insertion rod 5b rotates;

[0101] d. Move the connecting rod 2d to the top of the tray 6 by moving the slider 2g left and right and the movable seat 2c up and down, so that the straight connector 2d1 faces the straight groove 6a1;

[0102] e. Move the movable seat 2c downward to drive the connecting rod 2d downward to insert the straight connector 2d1 downward into the straight groove 6a1;

[0103] f. After the straight connector 2d1 contacts the pressure plate 8, it continues to press down the compression spring 9 to move the pressure plate 8 downward;

[0104] g. Rotate the connecting rod 2d to turn the straight connector 2d1 to a vertical state;

[0105] h. The upper movable seat 2c drives the connecting rod 2d upward, and the pressure plate 8 presses the straight connector 2d1 into the groove 6a3 under the elastic force of the spring 9;

[0106] i. Stirring the slurry in the barrel 7 to make the slurry in the barrel uniform;

[0107] j. By moving the slider 2g left and right and moving the movable seat 2c up and down, the tray 6 is immersed in the slurry in the barrel 7;

[0108] k. Move the slider 2g left and right several times to make the tray 6 swing left and right in the slurry;

[0109] l. Raise the tray 6 to the level of the slurry;

[0110] m. Use the connecting rod rotation driving device to drive the connecting rod to rotate, and use centrifugal force and rotation acceleration to control the slurry thickness;

[0111] After the rotation stops, the material tray 6 is moved to the unloading side by moving the slider 2g left and right and the movable seat 2c up and down so that the material tray 6 is inserted on the insertion rod 5b; the movable seat 2c moves downward to drive the connecting rod 2d downward so that the straight connector 2d1 presses the pressure plate 8 and the spring 9 downward until the straight connector 2d1 escapes from the groove 6a3, the connecting rod 2d is rotated to rotate the straight connector 2d1 90°, and the movable seat 2c moves upward to drive the connecting rod 2d upward so that the straight connector 2d1 escapes from the straight groove 6a1 and the connecting platform 6a, so that the connecting rod 2d and the material tray 6 are disengaged;

[0112] o. The rotating shaft 5a is rotated 180° clockwise, and the tray 6 inserted on the insertion rod 5b is flipped as the insertion rod 5b rotates, and the tray 6 falls on the belt conveyor B after flipping;

[0113] p. Operation of the belt conveyor B to transport the tray 6 through to the baking device 4 silver paste will be completed after curing in the lower section to cool to room temperature;

[0114] q. Remove the tray 6 from the belt conveyor B and then remove the flexible conductive connector from the tray 6 or remove the flexible conductive connector from the tray 6 that has been cooled and placed at the tail of the belt conveyor B. Example

[0115] Small particle dipping surface coating mainly includes four parts: loading, coating stirring, dipping and thickness control, baking and curing, and unloading.

[0116] The loading part moves the metal tray filled with cylindrical product particles to the grabbing position through the assembly line track.

[0117] The paint stirring part consists of a barrel filled with paint and a magnetic stirring device. The magnetic stirring device can keep the slurry in the barrel uniform and avoid coagulation, solidification and stratification. The motor drives the driving wheel of the magnetic stirring device to rotate, thereby driving the driven wheel to rotate.

[0118] The dipping and thickness control part consists of a cantilever and its mount. During operation, the gripper grabs the tray from the loading position and turns it over so that the plane where the material is located faces downward. The vertical module then drives the entire device downward until the tray is immersed in the slurry in the barrel, performs several swinging movements, and then rises to be out of the slurry liquid surface. At this time, the thickness control unit works. The thickness control unit drives the tray to rotate as a whole by a motor, and uses centrifugal force and rotational acceleration to control the slurry thickness. The higher the speed, the thinner the slurry coating thickness. The specific speed is supported by the test results conducted in the early stage and is mainly affected by parameters such as the proportion of components in the slurry and the viscosity of the slurry. In order to avoid insufficient centrifugal force in the center of the tray, resulting in too thick coating thickness, a protective cover can be covered within a certain range in the center to shield part of the operating area.

[0119] The baking, curing and unloading parts have heating tubes installed around a track several meters long. After the material tray passes through these heating tubes and is continuously baked, the silver paste will complete the curing process; after passing through the cooling section of the conveyor belt, the temperature of the material tray at the outlet drops to room temperature, and the operator completes the unloading process and continues to complete subsequent inspection, packaging and other process flows.

[0120] This device proposes an efficient and stable solution for the surface coating process of small-sized products, which has reference and promotion significance for situations in industrial production where surface spraying and curing of products of different sizes and shapes are required.

Claims

1. A small particle dipping surface coating method, characterized in that: The method comprises the following steps: moving a material tray (6) loaded with a flexible conductive connector at a loading station to a grabbing station; stirring the slurry in a material barrel (7); grabbing the material tray (6); immersing the material tray (6) in the slurry in the material barrel (7); swinging the material tray (6); taking the material tray (6) out of the slurry; rotating the material tray (6); baking the material tray (6); and moving the material tray (6) to a unloading station; The small particle dipping surface coating method is implemented by a small particle dipping surface coating device; The small particle dipping surface coating device comprises, in order of process steps, a loading device (1), a turning device (5), a main machine (2), a turning device (5) and a unloading device (3); the unloading device (3) comprises a baking section and a cooling section; the baking section is arranged in the front half of the unloading device (3); the baking section is provided with a baking device (4); the main machine (2) comprises a bracket (2a), a fixed seat (2b), a movable seat (2c), a slider (2g) and a connecting rod (2d); the fixed seat (2b) is fixed on the bracket (2a); the movable seat (2c) is mounted on the fixed seat (2b) so as to be able to move linearly up and down; the slider (2g) is mounted on the movable seat (2c) so as to be able to move linearly left and right; the connecting rod (2d) is rotatably mounted on the slider (2g); and a connecting rod rotation driving device is provided on the slider (2g); The specific steps of implementing the small particle dip-type surface coating method using the small particle dip-type surface coating device are as follows: Using a loading device (1) to move the material tray (6) to a turning station on the loading side; Using a turning device (5) to turn over the material tray (6); Combining the connecting rod (2d) of the main machine (2) with the material tray (6); Stirring the slurry in the barrel (7) to make the slurry in the barrel uniform; By moving the slider (2g) left and right and the movable seat (2c) up and down, the material tray (6) is immersed in the slurry in the material barrel (7); Move the slider (2g) left and right several times to make the material tray (6) swing left and right in the slurry; Raise the material tray (6) to a level above the slurry liquid level; The connecting rod is driven to rotate by a connecting rod rotation driving device, and the slurry thickness is controlled by utilizing centrifugal force and rotation acceleration; After the rotation stops, the material tray (6) is moved to the turning position on the unloading side, and the connecting rod (2d) is disengaged from the material tray (6); Using a turning device (5) to turn over the material tray (6); Using the unloading device (3), the material tray (6) is moved to the baking device (4) and the slurry is cooled to room temperature in the unloading section after solidification is completed; The connecting rod (2d) is fixedly connected to the material tray (6) by a connecting mechanism; the connecting mechanism comprises a straight-line connecting head (2d1) arranged at the lower end of the connecting rod (2d) and a connecting platform (6a) arranged at the top of the material tray (6); a cylindrical cavity (6a2) is arranged in the connecting platform (6a); a straight-line groove (6a1) is arranged between the upper surface of the connecting platform (6a) and the top surface of the cylindrical cavity (6a2); a groove (6a3) matching the straight-line connecting head (2d1) is arranged on the top surface of the cylindrical cavity (6a2); the groove (6a3) is perpendicular to the straight-line groove (6a1); a pressing plate (8) is arranged in the cylindrical cavity (6a2); and a spring (9) is arranged between the pressing plate (8) and the bottom surface of the cylindrical cavity (6a2); The specific steps of using the coupling mechanism to fix the connecting rod (2d) and the material tray (6) are as follows: Move the connecting rod (2d) to the top of the material tray (6), with the straight connector (2d1) facing the straight groove (6a1); The movable seat (2c) moves downward to drive the connecting rod (2d) downward so that the straight-shaped connecting head (2d1) is inserted downward into the straight-shaped groove (6a1); After the slotted connector (2d1) contacts the pressure plate (8), the compression spring (9) continues to be pressed downward, causing the pressure plate (8) to move downward; Rotate the connecting rod (2d) to turn the straight connector (2d1) to a vertical state; The upper movable seat (2c) drives the connecting rod (2d) upward, and the pressure plate (8) presses the straight connector (2d1) into the groove (6a3) under the elastic force of the spring (9).

2. A small particle dipping surface coating method according to claim 1, characterized in that: The feeding device (1) is a belt conveyor A, which is provided with two parallel belts that move differently, and the gap between the two belts can accommodate the connecting platform (6a), and the bottom sides of the material tray (6) are placed on the two belts; The turning device (5) comprises a rotating shaft (5a) and an inserting rod (5b), wherein the inserting rod (5b) is fixedly connected to the rotatable rotating shaft (5a), and a plug hole cooperating with the inserting rod (5b) is provided on the material tray (6); The unloading device (3) is a belt conveyor B, and the belt conveyor A is provided with two parallel belts that move differently, and the gap between the two belts can accommodate the lower connecting platform (6a), and the bottom sides of the material tray (6) are placed on the two belts; The specific steps of the small particle dip surface coating method are as follows: a. After fixing the flexible conductive connector on the material tray (6), place the material tray (6) at the head of the belt conveyor A or fix the flexible conductive connector on the material tray (6) placed at the head of the belt conveyor A; b. Operate the belt conveyor A to convey the material tray (6) to the tail of the belt conveyor A. At the tail, the material tray (6) is inserted into the insertion rod (5b); c. Rotate the rotating shaft (5a) 180° clockwise, and the tray (6) inserted on the insertion rod (5b) is flipped as the insertion rod (5b) rotates; d. Move the connecting rod (2d) to the top of the material tray (6) by moving the slider (2g) left and right and the movable seat (2c) up and down, so that the straight connector (2d1) faces the straight groove (6a1); e. The movable seat (2c) is moved downward to drive the connecting rod (2d) downward so that the slotted connector (2d1) is inserted downward into the slotted groove (6a1); After the slotted connector (2d1) contacts the pressure plate (8), the compression spring (9) continues to be pressed downward, causing the pressure plate (8) to move downward; Rotate the connecting rod (2d) to turn the straight connector (2d1) to a vertical state; The upper movable seat (2c) drives the connecting rod (2d) upward, and the pressing plate (8) presses the straight connector (2d1) into the groove (6a3) under the elastic force of the spring (9); i. Stirring the slurry in the barrel (7) to make the slurry in the barrel uniform; j. By moving the slider (2g) left and right and moving the movable seat (2c) up and down, the material tray (6) is immersed in the slurry in the barrel (7); k. Move the slider (2g) left and right several times to make the material tray (6) swing left and right in the slurry; Raise the material tray (6) to a level above the slurry liquid level; The connecting rod is driven to rotate by a connecting rod rotation driving device, and the slurry thickness is controlled by utilizing centrifugal force and rotation acceleration; After the rotation stops, the material tray (6) is moved to the unloading side by moving the slider (2g) left and right and the movable seat (2c) up and down so that the material tray (6) is inserted on the insertion rod (5b), the movable seat (2c) moves downward to drive the connecting rod (2d) downward so that the straight-line connector (2d1) presses the pressure plate (8) and the spring (9) downward until the straight-line connector (2d1) is disengaged from the groove (6a3), the connecting rod (2d) is rotated to rotate the straight-line connector (2d1) 90 degrees, and the movable seat (2c) moves upward to drive the connecting rod (2d) upward so that the straight-line connector (2d1) is disengaged from the straight-line groove (6a1) and the connecting platform (6a), so that the connecting rod (2d) and the material tray (6) are disengaged; The rotating shaft (5a) is rotated 180° clockwise, and the material tray (6) inserted on the insertion rod (5b) is turned over as the insertion rod (5b) rotates. After turning over, the material tray (6) falls onto the belt conveyor B; The belt conveyor B is operated to convey the material tray (6) to the baking device (4) where the slurry is cooled to room temperature in the unloading section after solidification. After the material tray (6) is removed from the belt conveyor B, the flexible conductive connector is removed from the material tray (6) or the flexible conductive connector is removed from the cooled material tray (6) placed at the tail of the belt conveyor B.

3. A small particle dipping surface coating device according to a small particle dipping surface coating method according to claim 1, characterized in that: The invention comprises a feeding device (1), a turning device (5), a main machine (2), a turning device (5) and a feeding device (3) in sequence. The feeding device (3) comprises a baking section and a cooling section. The baking section is arranged in the front half of the feeding device (3). The baking section is provided with a baking device (4). The main machine (2) comprises a bracket (2a), a fixed seat (2b), a movable seat (2c), a slider (2g) and a connecting rod (2d). The fixed seat (2b) is fixed on the bracket (2a). The movable seat (2c) is mounted on the fixed seat (2b) so as to be able to move linearly up and down. The slider (2g) is mounted on the movable seat (2c) so as to be able to move linearly left and right. The connecting rod (2d) is rotatably mounted on the slider (2g). A connecting rod rotation driving device is arranged on the slider (2g). The connecting rod (2d) is fixedly connected to the feeding tray (6) via a coupling mechanism. The combining mechanism comprises a straight-line connector (2d1) arranged at the lower end of a connecting rod (2d) and a connecting platform (6a) arranged at the top of a material tray (6); a cylindrical cavity (6a2) is arranged in the connecting platform (6a); a straight-line groove (6a1) is arranged between the upper surface of the connecting platform (6a) and the top surface of the cylindrical cavity (6a2); a groove (6a3) matching the straight-line connector (2d1) is arranged on the top surface of the cylindrical cavity (6a2); the groove (6a3) is perpendicular to the straight-line groove (6a1); a pressing plate (8) is arranged in the cylindrical cavity (6a2); and a spring (9) is arranged between the pressing plate (8) and the bottom surface of the cylindrical cavity (6a2).

4. A small particle dipping surface coating device according to claim 3, characterized in that: The loading device (1) is a belt conveyor A, which is provided with two parallel belts that move differently. The gap between the two belts can accommodate the lower connecting platform (6a), and the bottom sides of the material tray (6) are placed on the two belts.

5. A small particle dipping surface coating device according to claim 3, characterized in that: The turning device (5) comprises a rotating shaft (5a) and an inserting rod (5b), wherein the inserting rod (5b) is fixedly connected to the rotatable rotating shaft (5a), and a plug hole cooperating with the inserting rod (5b) is provided on the material tray (6).

6. A small particle dipping surface coating device according to claim 3, characterized in that: The unloading device (3) is a belt conveyor B. The belt conveyor A is provided with two parallel belts that move differently. The gap between the two belts can accommodate the lower connecting platform (6a). The bottom sides of the material tray (6) are placed on the two belts.

7. A small particle dipping surface coating device according to claim 3, characterized in that: The connecting rod rotation driving device is a motor (2f), the motor (2f) is fixed on the slider (2g), the output shaft of the motor (2f) is connected to a driving gear (2e), a driven gear is arranged on the connecting rod (2d), and the driving gear (2e) cooperates with the driven gear.

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