Coating Machine

Abstract

The present invention discloses a coating machine, including a feeding device, a cleaning device, a coating device and a feeding device. The feeding device takes and delivers the product to the cleaning device, and cooperates with the cleaning device to clean and remove dust from the product. The cleaned product is also turned over 180 degrees and placed on the coating table of the coating device. The coating device includes a coating box detachably connected to the bottom of the coating table and a coating head suspended in the coating box. The coating head has a receiving groove with a notch facing upward, and the notch of the receiving groove is lower than the liquid level of the coating liquid in the coating box. The coating head can move linearly along the Z-axis direction relative to the coating box to approach or move away from the coating table, so that the coating part of the product can be immersed in the coating liquid carried by the receiving groove. The coating box of the coating device can move linearly along the Y-axis direction to approach or move away from the coating table. The feeding device is used for cooling, storing and transferring the product after coating treatment. The machine can realize automatic operation, and the structure is simple and efficient.

Description

Technical Field

[0001] The invention relates to steering gear processing equipment, in particular to a coating machine for coating components of the steering gear. Background Art

[0002] The steering gear of an automobile is an important component of an automobile. With the development of science and technology, the processing requirements for the steering gear are also constantly increasing. In order to meet the needs of miniaturization, large capacity, high reliability and low cost, the production and manufacturing process of the steering gear of an automobile often involves the need to coat the pins or plug-in ends of the inductors, connectors and other electronic components in its components. Through the coating operation, lubrication is increased and friction is reduced, so that the working effect of the electronic components is better and the service life is longer. The slurry to be coated needs to be evenly coated on the surface of the pins or plug-in ends according to the predetermined thickness and length so that it can operate normally and be easy to use. Since the front and back sides of the shell seat of the automobile steering gear assembly are equipped with electronic components, and the installation heights are different from each other, the shape of the entire assembly is irregular, and the existing coating machine is difficult to meet the coating operation of the electronic components of the automobile steering gear assembly with different heights and irregular shapes.

[0003] Therefore, there is an urgent need for a coating machine that can realize automated operation, has a simple structure and is highly efficient to overcome the above problems. Summary of the invention

[0004] The object of the present invention is to provide a coating machine which can realize automated assembly line operation and has a simple structure and high efficiency.

[0005] In order to achieve the above-mentioned purpose, the present invention discloses a coating machine, which includes a loading device, a cleaning device, a coating device and a unloading device. The loading device is arranged beside the cleaning device and the coating device, and is used to take and deliver the product to the cleaning device, and cooperate with the cleaning device to clean and remove dust from the product. The loading device is also used to turn the cleaned product 180 degrees and place it on the coating table of the coating device. The coating device includes a coating box and a hanging device detachably connected to the bottom of the coating table. A coating head is arranged in the coating box, and the coating head has a receiving groove with a notch facing upward, and the notch of the receiving groove is lower than the liquid level of the coating liquid in the coating box. The coating head can move linearly along the Z-axis direction relative to the coating box to approach or move away from the coating table, so that the coated part of the product can be immersed in the coating liquid carried by the receiving groove. The coating box of the coating device can move linearly along the Y-axis direction to approach or move away from the coating table, and the unloading device is used for cooling, storing and transferring the product after coating treatment.

[0006] Compared with the prior art, the feeding device of the coating machine of the present invention can not only realize the automatic placement and transfer of products, but also realize the transfer and flipping of products. A single device can realize multiple actions, with a simple and efficient structure and optimized structure. The product is first cleaned in the cleaning device and then coated in the coating device, so that the coating effect of the product is better. During coating, the coating part is in a flipping position that is convenient for coating. The entire product is not in contact with the coating liquid, but the coating head moves relative to the product, so that the coating part can be immersed in the coating liquid carried by the receiving groove of the coating head, thereby realizing positioning coating and having a good coating effect. Moreover, the up and down movement of the coating head can also stir the coating liquid, causing the coating liquid in the coating box to flow, effectively improving the use effect of the coating liquid. In addition, the coating box is detachably connected to the coating table. When it moves linearly away from the coating table, it can conveniently complete the cleaning operation of the coating box and facilitate the cleaning and disassembly and replacement of the coating head, thereby realizing the adaptability of the coating parts of different models and different parts, effectively improving the adaptability of the whole machine. The unloading device can automatically transfer the coated product, and can also cool and store the product before unloading, thereby effectively ensuring the coating effect. The coating machine of the present invention has a simple and compact structure, effectively ensures the coating effect, has a high degree of automation, effectively simplifies the structure, and correspondingly reduces the manufacturing cost.

[0007] Preferably, the loading device includes a loading clamp, which can move linearly along the Z-axis direction relative to the coating table to grab the product, and the loading clamp can also move linearly along the Y-axis direction relative to the coating table to transfer the grabbed product between the cleaning device and the coating table, and during the transfer process, the loading clamp can also rotate 180° relative to the coating table so that the coating part is in a direction convenient for coating processing.

[0008] Preferably, the loading device also includes a Y-axis linear module, a mounting frame, a first rotation driver, a first swing arm, a second swing arm, a connecting plate, a second rotation driver and a clamping driver. The mounting frame is connected to the slider of the Y-axis linear module, the first rotation driver is fixed to the top of the mounting frame, one end of the first swing arm is rotatably connected to the output end of the first rotation driver, the other end of the first swing arm is pivotally connected to one end of the second swing arm, the other end of the second swing arm is rotatably connected to the connecting plate, the side end of the connecting plate is slidably connected to the relative lower end of the mounting frame along the Z-axis direction, the second rotation driver is installed on the connecting plate, the clamping driver is connected to the output end of the second rotation driver, and the loading clamp is connected to the output end of the clamping driver.

[0009] Preferably, an elastic member is connected between the mounting frame and the relative lower end of the second swing arm.

[0010] Preferably, the cleaning device includes an upper ion blower and a lower ion blower which are arranged in parallel and at intervals along the Z-axis direction. The loading device can transfer the obtained product to a position between the upper ion blower and the lower ion blower, and then transfer it to the coating station after pausing for a period of time.

[0011] Preferably, the coating station and the coating box are sealed and connected via a sealing member.

[0012] Preferably, the coating device also includes a first linear drive and a second linear drive, the first linear drive is connected to the coating head and is used to drive the coating head to move linearly along the Z-axis direction, and the second linear drive is connected to the coating box and is used to drive the coating box to move linearly along the Y-axis direction.

[0013] Preferably, the coating machine also includes a third linear drive, which is arranged below the coating table and located outside the coating box. The third linear drive is fixedly connected to or detachably abutted with the coating table, and is used to drive the coating table to move linearly along the Z-axis direction.

[0014] Preferably, the unloading device includes a cooling and storage mechanism and a first manipulator, a second manipulator and a third manipulator arranged in a triangle relative to the cooling and storage mechanism, the second manipulator is used to take and deliver the material box to the loading platform located at the rear side of the coating station, the first manipulator is arranged beside the coating station, and is used to transfer the coated product to the material box, the third manipulator is used to transfer the material box filled with products to the cooling and storage mechanism, and the cooling and storage mechanism is used for cooling, storing and transferring the products placed in the material box.

[0015] Preferably, the cooling storage mechanism comprises at least two conveyor belts arranged in parallel, and the conveyor belts can convey the plurality of material boxes stacked at the input end thereof to the output end thereof along the Y-axis direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the planar structure of the coating machine of the present invention.

[0017] Figure 2 It is a partial structural schematic diagram of the coating machine of the present invention.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the feeding device of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the coating device of the present invention.

[0020] Figure 5This is a state diagram of the coating box of the coating device of the present invention being away from the coating station.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the liquid replenishing mechanism of the coating device of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the first manipulator of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the third manipulator of the present invention. DETAILED DESCRIPTION

[0024] In order to explain the content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0025] See also Figure 1The present invention discloses a coating machine 100, which is used for coating a coating part 201 of a product 200. In the present application, the product 200 includes but is not limited to a component of an automobile steering gear. The component of the steering gear has a roughly circular shell seat, and the back of the shell seat is provided with three connectors of different heights and an end cover. The front of the shell seat is equipped with four stacked terminals, an inductor welded to both ends of one of the terminals, and three capacitors welded to both ends of the other three terminals in a one-to-one correspondence. The coating machine 100 of the present invention is mainly used for coating the pins of the terminals. Specifically, the coating machine 100 of the present invention includes a loading device 10, a cleaning device 20, a coating device 30 and a unloading device 40. The loading device 10 is arranged beside the cleaning device 20 and the coating device 30, and is used to take the product 200 to the cleaning device 20, and cooperate with the cleaning device 20 to clean and remove dust from the product 200. The loading device 10 is also used to turn the cleaned product 200 180 degrees and place it on the coating table 31 of the coating device 30. The coating device 30 includes a coating box 32 detachably connected to the bottom of the coating table 31 and a coating box 32 suspended on the coating table 31. The coating head 33 in the coating box 32 has a receiving tank (not shown in the figure) with an upward notch, and the notch of the receiving tank is lower than the liquid level of the coating liquid in the coating box 32. The coating head 33 can move linearly along the Z-axis direction relative to the coating box 32 to approach or move away from the coating table 31, so that the coating part 201 of the product 200 can be immersed in the coating liquid carried by the receiving tank. The coating box 32 of the coating device 30 can move linearly along the Y-axis direction to approach or move away from the coating table 31. The unloading device 40 is used for cooling, storing and transferring the product 200 after the coating process. It should be noted that the coating machine 100 of the present invention also includes a controller, which is electrically connected to the loading device 10, the cleaning device 20, the coating device 30 and the unloading device 40, and is used to control the coordinated actions between the devices. Among them, the controller is an existing design, and its structure and control principle are well known in the art, so it will not be described in detail here.

[0026] See also Figure 2 and Figure 3 The loading device 10 includes a loading jaw 11, which can move linearly along the Z-axis direction relative to the coating table 31 to grab the product 200. The loading jaw 11 can also move linearly along the Y-axis direction relative to the coating table 31 to transfer the grabbed product 200 between the cleaning device 20 and the coating table 31. During the transfer process, the loading jaw 11 can also rotate 180° relative to the coating table 31, so that the coating part 201 is in a direction convenient for coating processing.

[0027] Specifically, the loading device 10 also includes a Y-axis linear module 12, a mounting frame 13, a first rotary driver 14, a first swing arm 15, a second swing arm 16, a connecting plate 17, a second rotary driver 18 and a clamping driver 19. The mounting frame 13 is connected to the slider of the Y-axis linear module 12, the first rotary driver 14 is fixed to the top of the mounting frame 13, one end of the first swing arm 15 is rotatably connected to the output end of the first rotary driver 14, the other end of the first swing arm 15 is pivotally connected to one end of the second swing arm 16, the other end of the second swing arm 16 is rotatably connected to the connecting plate 17, the side end of the connecting plate 17 is slidably connected to the relative lower end of the mounting frame 13 along the Z-axis direction, the second rotary driver 18 is installed on the connecting plate 17, the clamping driver 19 is connected to the output end of the second rotary driver 18, and the loading clamp 11 is connected to the output end of the clamping driver 19.

[0028] More specifically, the mounting frame 13 is generally L-shaped, and is slidably connected to the Y-axis linear module 12 with its short side 131 along the Y axis at the top and its long side 132 along the Z axis at the bottom. The first rotary driver 14 is provided on the short side 131 of the mounting frame 13, and the connecting plate 17 is slidably connected to the long side 132 of the mounting frame 13. Both the first rotary driver 14 and the second rotary driver 18 are servo motors. Preferably, an elastic member 133 is connected between the mounting frame 13 and the lower ends of the second swing arm 16, and the elastic member 133 is specifically a spring.

[0029] The specific working principle of the feeding device 10 is as follows: when the first rotary driver 14 rotates, the first swing arm 15 can be driven to rotate, thereby driving the second swing arm 16 to rotate, so that the first swing arm 15 and the second swing arm 16 are relatively opened or folded, and the connecting plate 17 can be driven to slide on the long side 132 of the mounting frame 13, thereby driving the feeding clamp 11 to move up and down along the Z-axis direction to approach or move away from the product 200, and the clamping driver 19 then drives the feeding clamp 11 to clamp or release the product 200. When the first swing arm 15 and the second swing arm 16 are relatively open and roughly in a straight line in the Z-axis direction, the loading clamp 11 moves down to pick up the material, and the elastic member 133 is stretched at this time; when the first swing arm 15 and the second swing arm 16 are relatively folded, the elastic member 133 is reset, and the second swing arm 16 is also driven to reset to an acute angle between the first swing arm 14 and the Y-axis direction, then the loading clamp 11 moves up with the product, so that the product can be clamped from a relatively low conveying device to a relatively high position, so that the Y-axis linear module 12 can subsequently drive the loading clamp 11 to move horizontally to the cleaning device 20 and the coating device 30. After cleaning and dust removal at the cleaning device 20, the second rotary driver 18 can drive the clamping driver 19 to drive the loading clamp 11 to flip 180°, so that the coating portion 201 of the product 200 faces downward, so that it can be placed on the coating table 31 for coating.

[0030] Ginseng Figure 2The cleaning device 20 includes an upper ion blower 21 and a lower ion blower 22 which are arranged in parallel and at intervals along the Z-axis direction. The loading device 10 can transfer the obtained product 200 between the upper ion blower 21 and the lower ion blower 22, and pause for a period of time for cleaning and dust removal before transferring it in parallel to the coating station 31.

[0031] See also Figure 4 and Figure 5 The coating station 31 and the coating box 32 are sealed and connected by a seal to prevent the coating liquid in the coating box 32 from volatilizing. The coating device 30 also includes a first linear drive 34, which is connected to the coating head 33 and is used to drive the coating head 33 to move linearly along the Z-axis direction, so that the coating head 33 can move upward and be higher than the liquid level of the coating liquid, and finally pass through the opening 311 on the coating station 31, immersing the coating part 201 in the carried coating liquid and maintaining the required coating time. The first linear drive 34 is specifically a linear motor. Preferably, when the number of coating parts 301 is multiple and the heights are different, the coating head 33 may have a receiving groove with a corresponding position and height.

[0032] The coating device 30 also includes a second linear drive 35, which is connected to the coating box 32 and is used to drive the coating box 32 to move linearly along the Y-axis direction, thereby facilitating the cleaning of the coating box 32 and the replacement of the coating liquid therein.

[0033] In the preferred embodiment of the present application, the coating device 30 further includes a third linear drive 36, which is disposed below the coating station 31 and outside the coating box 32. The output end of the third linear drive 36 is fixedly connected to or detachably abuts against the coating station 31, and is used to drive the coating station 31 to move linearly along the Z-axis direction, so that after the coating station 31 moves up, the sealed connection with the coating box 32 is released, and the coating box 32 can move linearly along the Y-axis direction. In addition, after the coating station 31 is raised, it is also convenient to clean, disassemble and replace the coating head 33, so as to adapt to the operation of different coating parts 201.

[0034] Combination Figure 1 and Figure 6The coating device 30 further includes a liquid replenishing mechanism 37, which includes a bracket 371, a coating liquid tank 372 detachably mounted on the bracket 371, and a liquid level sensor 373. The coating liquid tank 372 is located above the coating station 31, and is connected to the coating box 32 through a pipeline, and the connection is controlled by a switch valve 374. A liquid level sensor 373 is provided at each of the coating box 32 and the coating liquid tank 372. When the liquid level sensor 373 at the coating box 32 senses that the liquid level in the box is lower than a preset value, a signal is sent to the controller. Under the instruction of the controller, the switch valve 374 is opened to automatically replenish the coating liquid in the coating box 32. When the liquid level sensor 373 at the coating liquid tank 372 senses that the liquid level in the box is lower than a preset value, an alarm is issued to remind manual liquid replenishment.

[0035] In addition, the coating machine 100 of the present invention adopts a sampling inspection method to inspect the coated products 200, and a testing table 50 is provided between the coating table 31 and the loading table 46, where the sampled products 200 can be inspected and unqualified products can be marked with a marker.

[0036] See also Figure 1 , Figure 7 and Figure 8 The unloading device 40 includes a cooling storage mechanism 41 and a first manipulator 42, a second manipulator 43 and a third manipulator 44 arranged in a triangle relative to the cooling storage mechanism 41. The second manipulator 43 is used to take and deliver an empty material box 45 to a loading platform 46 located at the rear side of the coating station 31. The first manipulator 42 is arranged on the side of the coating station 31 and is used to transfer the coated product 200 to the material box 45. The third manipulator 44 is used to transfer the material box 45 filled with products to the cooling storage mechanism 41. The cooling storage mechanism 41 is used for cooling, storing and transferring the products 200 placed in the material box 45.

[0037] Specifically, the cooling storage mechanism 41 includes at least two conveyor belts 411 arranged in parallel, and the conveyor belt 411 can convey a plurality of stacked material boxes 45 at its input end to its output end along the Y-axis direction, that is, convey from front to back, so as to achieve first-in-first-out. In addition, an empty box feeding belt 412 is also arranged beside the two conveyor belts 411, and a plurality of stacked empty material boxes 45 are conveyed from back to front along the Y-axis on the empty box feeding belt 412 to the second manipulator 43.

[0038] See also Figure 7 The first manipulator 42 is a four-axis manipulator, and its output end is connected to a material unloading clamp 421 and an industrial camera 422. The industrial camera 422 is used to identify the position in the material box 45 so as to accurately place the coated product 200 into the position of the material box 45.

[0039] See also Figure 8The second manipulator 43 and the third manipulator 44 are both six-axis manipulators, and their structures and working principles are the same, but they play different roles, one for picking up and placing an empty material box 45, and the other for picking up and placing a material box 45 filled with products 200. Specifically, taking the third manipulator 44 as an example, the third manipulator 44 includes four picking-up and placing claws 441 connected to the output end, and the four picking-up and placing claws 441 are used to clamp and fix from the four corners of the upper side end of the material box 45, so as to maintain a stable transfer.

[0040] The following combination Figures 1 to 8 , the working of the coating machine 100 of the present invention is described as follows:

[0041] After the equipment is started, under the instruction of the controller, the loading device 10 first moves linearly up and down along the Z axis to clamp the product 200, and then transfers it to between the two ion blowers located in the cleaning device 20. After a short stop for cleaning and dust removal, the loading device 10 transfers and places the product 200 on the coating table 31, and the loading device 10 is reset; then, the coating head 33 moves linearly upward along the Z axis in the coating box 32 to approach the product 200, until it passes through the opening 311 on the coating table 31, immerses the coating part 201 in the carried coating liquid, and after maintaining the required coating time, the coating head 33 falls back below the liquid level of the coating liquid to replenish the coating liquid; at this time , the second manipulator 43 has placed the empty material box 45 on the loading platform 46, the first manipulator 42 takes the coated product on the coating platform 31 and puts it into the material box 45, until the material box 45 is full, the third manipulator 44 transfers the material box 45 full of products 200 to stack on the conveyor belt 411, and when the stacking reaches the preset number of layers, the conveyor belt 411 moves to transfer the material boxes 45 stacked in multiple layers one step backward, until the conveyor belt 411 is full of multiple stacks of material boxes 45, the third manipulator 44 stacks the subsequent material boxes 45 on another conveyor belt 411, and the material box 45 that enters the cooling first can be unloaded at the rear end, realizing first-in-first-out. Repeating the above operations continuously can realize the automated assembly line operation of coating the product 200.

[0042] Compared with the prior art, the feeding device 10 of the coating machine 100 of the present invention can not only realize the automatic placement and pick-up of the product 200, but also realize the transfer and flipping operation of the product 200. A single device realizes multiple actions, and the structure is simple and efficient, which effectively optimizes the structure. The product 200 is first cleaned at the cleaning device 20, and then coated at the coating device 30, so that the coating effect of the product 200 is better, and when coating, the coating part 201 is in a flip position that is convenient for coating. It is not that the entire product is in contact with the coating liquid, but the coating head 33 moves relative to the product 200, so that the coating part 201 can be immersed in the coating liquid carried by the receiving groove of the coating head 33, thereby realizing positioning coating and having a good coating effect; and the up and down movement of the coating head 33 can also stir the coating liquid, causing the coating liquid in the coating box 32 to flow, effectively improving the use effect of the coating liquid. In addition, the coating box 32 is detachably connected to the coating table 31. When it moves linearly away from the coating table 31, it can conveniently complete the cleaning operation of itself and the coating head 33, and it is convenient to clean and disassemble and replace the coating head 33, so as to achieve adaptability to the coating parts 201 of different models and different parts, and effectively improve the adaptability of the whole machine. The unloading device 40 can automatically transfer the product 200 after coating treatment, and can also cool and store the product 200 and transfer it out, so as to effectively ensure the coating effect. The coating machine 100 of the present invention has a simple and compact structure, effectively ensures the coating effect and has a high degree of automation, effectively simplifies the structure, and correspondingly reduces the manufacturing cost.

[0043] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A coating machine, characterized in that: The coating machine includes a loading device, a cleaning device, a coating device and a unloading device. The loading device is arranged beside the cleaning device and the coating device, and is used to take the product to the cleaning device and cooperate with the cleaning device to clean and remove dust from the product. The loading device is also used to flip the cleaned product 180° and place it on the coating table of the coating device. The coating device includes a coating box detachably connected to the bottom of the coating table and a coating head suspended in the coating box. The coating head has a receiving groove with a notch facing upward, and the notch of the receiving groove is lower than the liquid level of the coating liquid in the coating box. The coating head can move linearly along the Z-axis direction relative to the coating box to approach or move away from the coating table, so that the coating part of the product can be immersed in the coating liquid carried by the receiving groove. The coating box of the coating device can move linearly along the Y-axis direction to approach or move away from the coating table. The unloading device is used for cooling, storing and transferring the product after coating treatment.

2. The coating machine according to claim 1, characterized in that: The loading device includes a loading jaw, which can move linearly along the Z-axis direction relative to the coating table to grab the product. The loading jaw can also move linearly along the Y-axis direction relative to the coating table to transfer the grabbed product between the cleaning device and the coating table. During the transfer process, the loading jaw can also rotate 180° relative to the coating table so that the coating part is in a direction convenient for coating processing.

3. The coating machine according to claim 2, characterized in that: The loading device also includes a Y-axis linear module, a mounting frame, a first rotation driver, a first swing arm, a second swing arm, a connecting plate, a second rotation driver and a clamping driver. The mounting frame is connected to the slider of the Y-axis linear module, the first rotation driver is fixed to the top end of the mounting frame, one end of the first swing arm is rotatably connected to the output end of the first rotation driver, the other end of the first swing arm is pivotally connected to one end of the second swing arm, the other end of the second swing arm is rotatably connected to the connecting plate, the side end of the connecting plate is slidably connected to the relative lower end of the mounting frame along the Z-axis direction, the second rotation driver is installed on the connecting plate, the clamping driver is connected to the output end of the second rotation driver, and the loading clamp is connected to the output end of the clamping driver.

4. The coating machine according to claim 3, characterized in that: An elastic member is connected between the mounting frame and the lower end opposite to the second swing arm.

5. The coating machine according to claim 1, characterized in that: The cleaning device includes an upper ion blower and a lower ion blower which are arranged in parallel and at intervals along the Z-axis direction. The loading device can transfer the obtained product to a position between the upper ion blower and the lower ion blower, and then transfer it to the coating station after pausing for a period of time.

6. The coating machine according to claim 1, characterized in that: The coating station and the coating box are sealed and connected via a sealing member.

7. The coating machine according to claim 1, characterized in that: The coating device also includes a first linear drive and a second linear drive. The first linear drive is connected to the coating head and is used to drive the coating head to move linearly along the Z-axis direction. The second linear drive is connected to the coating box and is used to drive the coating box to move linearly along the Y-axis direction.

8. The coating machine according to claim 1, characterized in that: The coating machine also includes a third linear drive, which is arranged below the coating table and outside the coating box. The third linear drive is fixedly connected to or detachably abutted against the coating table, and is used to drive the coating table to move linearly along the Z-axis direction.

9. The coating machine according to claim 1, characterized in that: The unloading device includes a cooling and storage mechanism and a first manipulator, a second manipulator and a third manipulator arranged in a triangle relative to the cooling and storage mechanism. The second manipulator is used to take and deliver the material box to the loading platform located at the rear side of the coating station. The first manipulator is arranged beside the coating station and is used to transfer the coated product to the material box. The third manipulator is used to transfer the material box filled with products to the cooling and storage mechanism. The cooling and storage mechanism is used for cooling, storing and transferring the products placed in the material box.

10. The coating machine according to claim 9, characterized in that: The cooling storage mechanism comprises at least two conveyor belts arranged in parallel, and the conveyor belts can convey the plurality of material boxes stacked at the input end thereof to the output end thereof along the Y-axis direction.

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