A quantitative bead running type fast color changing system bead running receiving station for paint supply

Abstract

The application relates to a bead receiving station of a paint-feeding quantitative bead running type quick color changing system, which comprises a main pipeline for being connected with a bead emitting station, the bead emitting station comprises three beads, the three beads are sequentially a first bead, a second bead and a third bead according to an emitting sequence, a receiving valve block for receiving the first bead and the second bead emitted by the bead emitting station, and a recovery and cleaning module for recovering and cleaning paint in the main pipeline, a waste liquid discharging module is connected to the receiving valve block for discharging waste liquid in the main pipeline, the recovery and cleaning module is used for filling quantitative solvent between the first bead and the second bead and pushing the first bead and the second bead to run in the main pipeline. The application has the effects of reducing the paint adding amount in the main pipeline, saving the cleaning cost of the main pipeline wall, and improving the recovery efficiency of the paint in the main pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic painting technology, and in particular to a walk-bead receiving station of a quantitative walk-bead type fast color changing system for paint supply. BACKGROUND

[0002] After the completion of automobile production, the surface painting process is used to spray paint on the automobile body, automobile bumper and other areas to play the role of rust prevention, corrosion prevention and aesthetic appearance of the automobile body. At present, a complete set of main pipe single walk-bead paint spraying system is usually equipped in the factory, which not only adapts to the automatic production line of automobile production, but also solves the problems of slow paint supply and difficult color changing.

[0003] The main pipe single walk-bead paint spraying system generally includes a walk-bead emitting station connected with a multi-color paint bucket and a walk-bead receiving station for receiving the walk-bead, a main pipe is connected between the walk-bead emitting station and the walk-bead receiving station, a walk-bead is interference fitted in the main pipe, a distribution station for paint distribution spraying is connected on the main pipe, a plurality of distribution stations are arranged along the extension direction of the main pipe, and a branch pipe is connected on each distribution station, the other end of the branch pipe is communicated with a spray gun. A controller is installed on the walk-bead emitting station to control the spraying process. During spraying, the controller emits the walk-bead, and after the walk-bead reaches the walk-bead receiving station, the controller sends a command to open the valve of the corresponding paint bucket to fill the paint in the main pipe, and when the paint fills the entire main pipe, the paint gradually enters the spray gun through the distribution station for spraying.

[0004] The walk-bead receiving station and the walk-bead emitting station are both connected with a solvent bucket for cleaning the main pipe and a collection bucket for recycling waste liquid, and when color changing is needed, the control valve of the solvent bucket is opened to fill the solvent in the main pipe and make the paint on the wall of the solvent main pipe adhere to achieve the purpose of cleaning the wall. When color changing is needed, the controller first controls the walk-bead to walk in the opposite direction to push the paint back into the walk-bead emitting station, then the valve of the solvent bucket of the walk-bead receiving station is opened to fill the entire main pipe with solvent, and then the walk-bead emitting station emits the walk-bead to clean the wall of the main pipe in the process of pushing the solvent into the walk-bead receiving station.

[0005] In view of the above problems, the inventor believes that when the paint is recycled, a large amount of paint will be left in the main pipe and the distribution station, the recycling time is long, and a large amount of solvent will be consumed when the main pipe single walk-bead paint spraying system changes color, which not only causes energy waste, but also leads to low spraying and color changing efficiency of the entire system. SUMMARY

[0006] In order to save energy and improve the overall spraying efficiency when recycling paint and cleaning the main pipe and each branch pipe, the present application provides a walk-bead receiving station of a quantitative walk-bead type fast color changing system for paint supply.

[0007] The application provides a walk-bead receiving station of a quantitative walk-bead type rapid color changing system for paint supply.

[0008] The walk-bead receiving station of the quantitative walk-bead type rapid color changing system for paint supply is used for being connected with a walk-bead emitting station through a main pipeline, the walk-bead emitting station comprises three walk-beads, the three walk-beads are sequentially a first walk-bead, a second walk-bead and a third walk-bead in emitting order, the walk-bead receiving station comprises a receiving valve block for receiving the first walk-bead and the second walk-bead emitted by the walk-bead emitting station and a recovery and cleaning module for cleaning the main pipeline and recovering paint in the main pipeline, a waste liquid discharging module for discharging waste liquid in the main pipeline is connected to the receiving valve block, and the recovery and cleaning module is used for filling a quantitative solvent between the first walk-bead and the second walk-bead and pushing the first walk-bead and the second walk-bead to walk in the main pipeline.

[0009] By adopting the above technical scheme, the receiving valve block receives the first walk-bead and the second walk-bead emitted by the walk-bead emitting station, and the waste liquid in the receiving valve block is discharged through the waste liquid discharging module; after paint spraying is completed, the recovery and cleaning module is used for filling a quantitative solvent between the first walk-bead and the second walk-bead and pushing the first walk-bead and the second walk-bead to return to the walk-bead emitting station, the paint in the recovery main pipeline is cleaned by using the quantitative solvent, the paint on the inner wall of the main pipeline is cleaned, waste liquid generated in the cleaning is collected and recovered in the walk-bead emitting station, the solvent usage amount for cleaning the pipeline is saved, and the efficiency of cleaning the wall of the main pipeline is improved.

[0010] Optionally, the receiving valve block, the waste liquid discharging module and the recovery and cleaning module are connected with a controller of the system.

[0011] By adopting the above technical scheme, the entire walk-bead emitting station is controlled automatically, the collection and recovery of waste liquid, the recovery of paint and the cleaning of the wall of the main pipeline are more intelligent, the operation is more convenient, the manpower is saved, and the work efficiency is improved.

[0012] Optionally, the waste liquid discharging module comprises a waste liquid discharging pipeline connected to the receiving valve block and a recovery valve installed between the waste liquid discharging pipeline and the receiving valve block, the other end of the waste liquid discharging pipeline is connected to a collection device, and the recovery valve is closed after the waste liquid discharging is completed.

[0013] By adopting the above technical scheme, the waste liquid entering the receiving valve block can enter the collection device along the waste liquid discharging pipeline after the recovery valve is opened under the control of the system, so that subsequent collection and recovery or other processing can be performed, and the concept of protecting the environment and saving resources is embodied.

[0014] Optionally, the waste liquid discharge pipeline comprises a first waste liquid discharge pipeline and a second waste liquid discharge pipeline installed on the receiving valve block, the recovery valve comprises a first recovery valve installed between the first waste liquid discharge pipeline and the receiving valve block and a second recovery valve installed between the second waste liquid discharge pipeline and the receiving valve block,

[0015] The other end of the first waste liquid discharge pipeline is connected to a first collection barrel for collecting waste liquid in the front end of the first bead, and the other end of the second waste liquid discharge pipeline is connected to a second collection barrel for collecting waste liquid between the first bead and the second bead.

[0016] By adopting the above technical scheme, the solvent is filled in the front end of the first bead and between the first bead and the second bead, the solvent in the front end of the first bead performs primary cleaning on the pipe wall of the main pipeline, the solvent between the first bead and the second bead performs secondary cleaning on the pipe wall of the main pipeline, the waste liquid in the front end of the first bead entering the receiving valve block and the waste liquid between the first bead and the second bead belong to waste liquid of different recovery standards, and the two waste liquid discharge pipelines and the two collection barrels are arranged, so that targeted recovery of different waste liquid can be realized, subsequent use of different recovery processes is facilitated, and operation is more standardized.

[0017] Optionally, the detection member comprises a first proximity switch and a second proximity switch installed on the receiving valve block,

[0018] The first proximity switch is located in front of the second proximity switch and between the first recovery valve and the second recovery valve,

[0019] The first proximity switch is used for detecting the position of the first bead, and the second proximity switch is used for detecting the position of the second bead,

[0020] When the first bead enters the receiving valve block and is detected by the first proximity switch, the controller controls the first recovery valve to be closed and the second recovery valve to be opened, and when the second bead enters the receiving valve block and is detected by the second proximity switch, the controller controls the second recovery valve to be closed.

[0021] By adopting the above technical scheme, the first proximity switch for detecting the first bead and the second proximity switch for detecting the second bead are used to realize intelligent and accurate control of opening and closing of the first recovery valve and the second recovery valve, and strict distinction between the two kinds of waste liquid can be realized.

[0022] Optionally, the recovery and cleaning module comprises a cleaning valve block, a first pipeline is connected between the receiving valve block and the cleaning valve block, an air interface is installed on the cleaning valve block, the air interface is connected to an air compressor through a pipeline, an air valve for controlling air access is installed on the cleaning valve block, a solvent pipeline and a solvent valve for controlling the opening and closing of the solvent pipeline are installed on the cleaning valve block, a solvent pipeline interface is installed on the cleaning valve block, the solvent pipeline is installed on the solvent pipeline interface, and one end of the solvent pipeline away from the solvent pipeline interface is connected to a solvent tank, a front medium valve for controlling the opening and closing of the first pipeline is installed on the receiving valve block, when the front medium valve is opened, the solvent enters between the first bead and the second bead through the first pipeline,

[0023] When recovering paint, the receiving valve block emits the second bead, the second proximity switch sends a signal to the controller to control the opening of the solvent valve and the front medium valve, and the solvent is filled between the first bead and the second bead, when the controller receives that the amount of solvent between the first bead and the second bead reaches a standard value preset by the controller, the solvent valve and the front medium valve are closed, and the air valve is opened to push the first bead, the second bead, and the solvent between the first bead and the second bead to travel in the main pipeline.

[0024] By adopting the above technical scheme, a certain amount of solvent is filled between the first bead and the second bead, and the air valve is opened to push the first bead, the second bead, and the certain amount of solvent between the first bead and the second bead to travel in the main pipeline, thereby achieving pipeline cleaning while recovering paint, and the cleaning of the main pipeline wall saves the use amount of solvent and cleaning cost.

[0025] Optionally, a rear medium valve for controlling the opening and closing of the first pipeline is also installed on the receiving valve block, after the controller receives that the amount of solvent between the first bead and the second bead reaches a standard value preset by the controller, the controller controls the closing of the front medium valve and the opening of the rear medium valve to fill solvent at the rear end of the first bead, when the controller receives that the solvent at the rear end of the first bead reaches a lubrication value preset by the controller, the solvent valve and the rear medium valve are closed, and the air valve is opened.

[0026] By adopting the above technical scheme, the solvent in the solvent tank can enter the rear end of the first bead by opening the rear medium valve, and when air is introduced into the main pipeline, the probability of dryness at the rear end of the first bead and thus difficulty in traveling in the main pipeline is reduced.

[0027] Optionally, the air interface comprises a high-pressure air interface for accessing high-pressure air and a low-pressure air interface for accessing low-pressure air; the air valve comprises a low-pressure air valve for controlling access of low-pressure air and a high-pressure air valve for controlling access of the high-pressure air; after the solvent valve and the post-medium valve are both closed, the controller first controls the high-pressure air valve to open, then controls the high-pressure air valve to close and controls the low-pressure air valve to open until the first bead enters the bead launching station.

[0028] By adopting the technical scheme, the high-pressure air valve is first opened to introduce high-pressure air into the main pipeline, so that the first bead and the second bead are smoothly started in the main pipeline. After starting, the high-pressure air valve is closed and the low-pressure air valve is opened, so that the first bead and the second bead clamping the solvent therebetween are stably walked in the main pipeline. The use of low-pressure control also saves energy.

[0029] Optionally, the receiving valve block is provided with a pressure sensor for detecting the pressure in the main pipeline.

[0030] By adopting the technical scheme, the pressure sensor can enable the construction personnel to perceive the pressure in the main pipeline, so as to facilitate real-time monitoring of the pressure in the main pipeline. When an abnormality occurs, timely adjustment can be made to ensure normal operation of the entire system.

[0031] Optionally, the receiving valve block is provided with a temperature sensor for detecting the temperature of the paint in the main pipeline.

[0032] By adopting the technical scheme, the temperature sensor can perform real-time monitoring on the temperature of the paint in the main pipeline, so that the construction personnel can adjust the temperature of the paint in the main pipeline, preventing the paint temperature from being too high or too low to affect the spraying quality.

[0033] In summary, the present application has at least one of the following beneficial technical effects:

[0034] 1. The present application can make the waste liquid entering the receiving valve block be smoothly discharged through the setting of the waste liquid discharge module. The recovery and cleaning module is used for recovering the paint and cleaning the wall of the main pipeline at the same time. Specifically, a certain amount of solvent is filled between the first bead and the second bead, and the first bead and the second bead clamping the certain amount of solvent are pushed to walk in the main pipeline, so as to complete the recovery of the paint and the cleaning of the wall of the main pipeline.

[0035] 2. The first proximity switch and the second proximity switch are provided to accurately control the timing of opening or closing of the first recovery valve and the second recovery valve, so as to accurately distinguish the two kinds of waste liquid and facilitate targeted recovery in the later period.

[0036] 3. By setting temperature sensor and pressure sensor on the receiving valve block, the pressure in the main pipeline and the temperature of the paint in the main pipeline are monitored in real time, so that timely adjustment can be made when abnormality occurs, and the normal operation of the entire system is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a schematic diagram of the overall structure of the present application.

[0038] Figure 2 is a top view of the present application.

[0039] Reference signs: 1, receiving valve block; 11, main pipe joint; 2, waste liquid discharge module; 21, first waste liquid discharge pipeline; 22, first recovery valve; 23, first proximity switch; 24, second waste liquid discharge pipeline; 25, second recovery valve; 26, second proximity switch; 3, recovery and cleaning module; 31, cleaning valve block; 32, first pipeline; 33, air interface; 331, high-pressure air interface; 332, low-pressure air interface; 34, air valve; 341, high-pressure air valve; 342, low-pressure air valve; 35, solvent pipeline interface; 36, solvent valve; 37, front medium valve; 38, rear medium valve; 4, pressure sensor; 5, temperature sensor. DETAILED DESCRIPTION

[0040] The following will be described in detail in combination with the accompanying drawings. Figures 1-2 The present application will be further described in detail.

[0041] The present application discloses a walk-on bead receiving station for a paint-supplied quantitative walk-on bead type fast color changing system. It is used to be connected with a walk-on bead emitting station through a main pipeline, and the walk-on bead emitting station emits three walk-on beads to the walk-on bead receiving station, and the installation emitting sequence is first walk-on bead, second walk-on bead and third walk-on bead in turn, with reference to Figure 1 and Figure 2 The walk-on bead receiving station for a paint-supplied quantitative walk-on bead type fast color changing system comprises a receiving valve block 1 for receiving a first walk-on bead (not shown in the figure) and a second walk-on bead (not shown in the figure), and a recovery and cleaning module 3 for recovering paint in the main pipeline and cleaning the pipeline. The receiving valve block 1 is provided with a waste liquid discharge module 2 for recovering waste liquid in the main pipeline. When the recovery and cleaning module 3 is started, a certain amount of solvent is filled between the first walk-on bead and the second walk-on bead, and the first walk-on bead, the second walk-on bead and the solvent between the first walk-on bead and the second walk-on bead are pushed to walk in the main pipeline. The receiving valve block 1, the recovery and cleaning valve block 31 and the waste liquid discharge module 2 are all connected to the controller of the system to realize automatic control of waste liquid recovery, paint recovery in the main pipeline and pipeline cleaning, so that the operation is more convenient and labor-saving, and the overall paint changing time is shortened.

[0042] With reference to Figure 1 and Figure 2The waste liquid module 2 comprises a first waste liquid discharge pipe 21 and a second waste liquid discharge pipe 24 installed on the receiving valve block 1, the first waste liquid discharge pipe 21 is located on the side of the second waste liquid discharge pipe 24 away from the bead launching station, the other end of the first waste liquid discharge pipe 21 is connected to a first collecting barrel (not shown in the figure), and the other end of the second waste liquid discharge pipe 24 is connected to a second collecting barrel (not shown in the figure). The waste liquid in front of the first bead is discharged through the first waste liquid discharge pipe 21 and collected by the first collecting barrel, and the waste liquid between the first bead and the second bead is discharged through the second waste liquid discharge pipe 24 and collected by the second collecting barrel, so that the two kinds of waste liquid are collected and recycled. A first recycling valve 22 is installed between the first waste liquid discharge pipe 21 and the receiving valve block 1, and a second recycling valve 25 is installed between the second waste liquid discharge pipe 24 and the receiving valve block 1, and the first recycling valve 22 and the second recycling valve 25 are connected to the controller of the system. Under normal circumstances, the first recycling valve 22 is in an open state and the second recycling valve 25 is in a closed state, when the waste liquid in front of the first bead is discharged, the controller controls the first recycling valve 22 to be closed and the second recycling valve 25 to be opened, and when the waste liquid between the first bead and the second bead is discharged, the controller controls the second recycling valve 25 to be closed, so as to prevent the paint filled between the second bead and the third bead from being discharged and wasted.

[0043] Referring to Figure 2 In order to more accurately control the opening and closing time of the first recycling valve 22 and the second recycling valve 25, a first proximity switch 23 for detecting the position of the first bead and a second proximity switch 26 for detecting the position of the second bead are installed on the receiving valve block 1, and the first proximity switch 23 is located on the side of the second proximity switch 26 away from the bead launching station. The first proximity switch 23 and the second proximity switch 26 are also connected to the controller of the system, when the first bead enters the receiving station and contacts the first proximity switch 23, the first proximity switch 23 sends a signal to the controller, the controller controls the first recycling valve 22 to be closed and the second recycling valve 25 to be opened; when the second bead enters the receiving valve block 1 and contacts the second proximity switch 26, the second proximity switch 26 sends a signal to the controller, and the controller controls the second recycling valve 25 to be closed, completing the recycling of the waste liquid in the main pipeline.

[0044] Referring to Figure 2The recovery and cleaning module 3 comprises a cleaning valve block 31, a solvent pipe interface 35 installed on the cleaning valve block 31, and an air interface 33 installed on the cleaning valve block 31, a solvent pipe is installed on the solvent pipe interface 35, the other end of the solvent pipe is connected to a solvent tank (not shown in the figure), a solvent valve 36 for controlling the access of solvent is installed on the cleaning valve block 31; the other end of the air interface 33 is connected to an air compressor (not shown in the figure), and an air valve 34 for controlling the access of air is installed on the cleaning valve block 31. A first pipe 32 is connected between the cleaning valve block 31 and the receiving valve block 1, and a front medium valve 37 for controlling the opening and closing of the first pipe 32 is also installed on the receiving valve block 1. When recovering paint and cleaning the pipe, the controller controls the opening of the solvent valve 36 and the front medium valve 37, the solvent enters the cleaning valve block 31 from the solvent tank, and then enters between the first bead and the second bead along the first pipe 32. Due to the entry of the solvent, the second bead enters the main pipeline and travels in the main pipeline along with the filling of the solvent until the solvent is filled to the standard value of the solvent preset in the controller.

[0045] In order to accurately determine the amount of solvent filled between the first bead and the second bead, and save cost as much as possible under the premise of completely cleaning the main pipeline, a time meter (not shown in the figure) is also installed on the bead receiving station, the time meter is connected with the second proximity switch 26 and the controller, after the second bead is launched, the contact relationship with the second proximity switch 26 is released, the second proximity switch 26 triggers the time meter to start timing, the standard value of the solvent filling between the first bead and the second bead is pre-designed in the controller, and the expected filling time of the solvent filling can be converted according to the flow rate of the solvent. When the controller detects that the value displayed by the time meter reaches the expected filling time, the controller controls the closing of the solvent valve 36 and the front medium valve 37, and controls the opening of the air valve 34, so that the air generated in the compressor enters the receiving valve block 1 along the first pipe 32 to drive the first bead to travel in the main pipeline. Under the drive of the first bead, the second bead and the solvent between the first bead and the second bead also travel along the main pipeline, and the cleaning of the paint on the wall of the main pipeline is completed.

[0046] Referring to Figure 1 and Figure 2In order to make the first beads walk smoothly in the main pipeline, reduce the probability of the first beads becoming dry and difficult to walk due to the long contact time with air, the rear medium valve 38 is installed on the receiving valve block 1. When the solvent between the first beads and the second beads is filled, the front medium valve 37 is closed, the solvent valve 36 is kept open, the controller controls the rear medium valve 38 to open, and the solvent enters the end of the first beads away from the second beads to lubricate the walking of the first beads. The controller is pre-set with a lubrication value of filling the solvent at the rear end of the first beads. According to the flow rate of the solvent, the time required for filling the solvent at the rear end of the first beads to the lubrication value is calculated. When the time reaches the set time, the controller controls the solvent valve 36 and the rear medium valve 38 to close, and controls the air valve 34 to open.

[0047] Referring to Figure 1 and Figure 2 , the air valve 34 includes a low-pressure air valve 342 and a high-pressure air valve 341 installed on the cleaning valve block 31, and the air interface 33 includes a high-pressure air interface 331 for accessing high-pressure air and a low-pressure air interface 332 for accessing first air. When the solvent valve 36 and the rear medium valve 38 are closed, the controller first controls the high-pressure air valve 341 to open, so that the first beads and the second beads can smoothly complete the "start" in the main pipeline. Then the controller controls the high-pressure air valve 341 to close and the low-pressure air valve 342 to open, so as to input continuous air flow in the main pipeline to push the first beads and the second beads to walk smoothly in the main pipeline until the paint in the main pipeline is recovered, and the cleaning of the wall of the main pipeline is completed as the solvent between the first beads and the second beads walks in the main pipeline.

[0048] Referring to Figure 1 and Figure 2 , the receiving valve block 1 is also provided with a pressure sensor 4 for detecting the pressure in the main pipeline and a temperature sensor 5 for detecting the temperature of the paint in the main pipeline. The pressure sensor 4 and the temperature sensor 5 are connected to the display screen (not shown in the figure) of the controller, so as to facilitate the real-time observation and monitoring of the staff, and ensure the stable operation of the receiving station.

[0049] The implementation principle of the receiving station of the quantitative bead running type fast color changing system for paint supply is as follows: in operation, the first recovery valve 22 is in an open state, waste liquid at the front end of the first bead first enters the receiving valve block 1 and then enters the first collection barrel along the first waste liquid discharge pipeline 21; then the receiving valve block 1 receives the first bead, the first bead contacts the first proximity switch 23 after entering the receiving valve block 1, the controller controls the first recovery valve 22 to close and controls the second recovery valve 25 to open, the waste liquid between the first bead and the second bead enters the second collection barrel along the second waste liquid discharge pipeline 24, when the second bead enters the receiving valve block 1 and contacts the second proximity switch 26, the second proximity switch 26 controls the second recovery valve 25 to close. When the paint spraying work is completed, the controller controls the solvent valve 36 and the front medium valve 37 to open, the solvent in the solvent barrel enters between the first bead and the second bead along the first pipeline 32, when the solvent fills to the solvent value preset in the controller, the controller controls the front medium valve 37 to close and controls the rear medium valve 38 to open, then the solvent enters the rear end of the first bead along the first pipeline 32, when the rear end of the first bead fills to the lubrication value preset in the controller, the controller controls the rear medium valve 38 to close, controls the high-pressure air valve 341 to open, so that the first bead and the second bead are smoothly “started” in the main pipeline, then the controller controls the high-pressure air valve 341 to close and controls the low-pressure air valve 342 to open, so that the low-pressure air is continuously introduced into the main pipeline, so that the first bead, the second bead and the solvent between the first bead and the second bead are smoothly running in the main pipeline to recover the paint in the main pipeline to the bead launching station, and at the same time, the first bead and the second bead are quantitatively cleaned between the solvent main pipeline, which saves the cost of pipeline cleaning and improves the efficiency of paint recovery and pipeline cleaning

[0050] The above are preferred embodiments of the present application, but do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A ball bearing receiving station for a quantitative ball bearing rapid color-changing system for paint supply, for connection to a ball bearing transmitting station via a main pipeline, wherein the ball bearing transmitting station comprises three balls, the three balls being, in the order of transmission, a first ball bearing, a second ball bearing, and a third ball bearing, characterized in that: It includes a receiving valve block (1) for receiving the first ball and the second ball emitted by the ball launcher station, and a recycling cleaning module (3) for cleaning the main pipeline and recovering the paint in the main pipeline. The receiving valve block (1) is connected to a waste liquid discharge module (2) for discharging waste liquid in the main pipeline. The recycling cleaning module (3) is used to fill a quantitative amount of solvent between the first ball and the second ball and push the first ball and the second ball to move in the main pipeline. The receiving valve block (1), the waste liquid discharge module (2), and the recycling and cleaning module (3) are all connected to the system controller; The receiving valve block (1) is equipped with a first proximity switch (23) for detecting the position of the first ball and a second proximity switch (26) for detecting the position of the second ball. The recycling and cleaning module (3) includes a cleaning valve block (31), a first pipe (32) connecting the cleaning valve block (31) and the receiving valve block (1), an air interface (33) installed on the cleaning valve block (31), the air interface (33) being connected to an air compressor via a pipe, an air valve (34) for controlling air access installed on the cleaning valve block (31), a solvent pipe and a solvent valve (36) for controlling the opening and closing of the solvent pipe installed on the cleaning valve block (31), a solvent pipe interface (35) installed on the cleaning valve block (31), the solvent pipe being installed on the solvent pipe interface (35), and the end of the solvent pipe furthest from the solvent pipe interface (35) being connected to a solvent tank, and a front medium valve (37) for controlling the opening and closing of the first pipe (32) installed on the receiving valve block (1). When the front medium valve (37) is open, the solvent enters between the first ball bearing and the second ball bearing through the first pipe (32). When recycling paint, the receiving valve block (1) emits the second ball bearing, and the second proximity switch (26) sends a signal to the controller to control the solvent valve (36) and the front medium valve (37) to open, filling the space between the first ball bearing and the second ball bearing with solvent. When the controller receives that the amount of solvent between the first ball bearing and the second ball bearing reaches the standard value preset by the controller, the solvent valve (36) and the front medium valve (37) are closed, and the air valve (34) is opened to push the first ball bearing, the second ball bearing, and the solvent between the first ball bearing and the second ball bearing to move in the main pipeline. The receiving valve block (1) is also equipped with a rear medium valve (38) for controlling the opening and closing of the first pipe (32). When the controller receives that the amount of solvent between the first ball and the second ball reaches the standard value preset by the controller, the controller controls the front medium valve (37) to close and controls the rear medium valve (38) to open to fill the solvent at the rear end of the first ball. When the controller receives that the amount of solvent at the rear end of the first ball reaches the lubrication value preset by the controller, the solvent valve (36) and the rear medium valve (38) are both closed, and the air valve (34) is opened.

2. The ball bearing receiving station of the quantitative ball bearing rapid color-changing system for paint supply according to claim 1, characterized in that: The waste liquid discharge module (2) includes a waste liquid discharge pipe connected to the receiving valve block (1) and a recovery valve installed between the waste liquid discharge pipe and the receiving valve block (1). The other end of the waste liquid discharge pipe is connected to a collection device. After the waste liquid is discharged, the recovery valve is closed.

3. The ball bearing receiving station of the quantitative ball bearing rapid color-changing system for paint supply according to claim 2, characterized in that: The waste liquid discharge pipeline includes a first waste liquid discharge pipeline (21) and a second waste liquid discharge pipeline (24) installed on the receiving valve block (1). The recovery valve includes a first recovery valve (22) installed between the first waste liquid discharge pipeline (21) and the receiving valve block (1) and a second recovery valve (25) installed between the second waste liquid discharge pipeline (24) and the receiving valve block (1). The other end of the first waste liquid discharge pipe (21) is connected to the first collection bucket, which is used to collect the waste liquid at the front end of the first ball bearing. The other end of the second waste liquid discharge pipe (24) is connected to the second collection bucket, which is used to collect the waste liquid between the first ball bearing and the second ball bearing. The receiving valve block (1) is equipped with a detection element that accurately senses the opening or closing time of the first recovery valve (22) and the second recovery valve (25).

4. The ball bearing receiving station of the quantitative ball bearing rapid color-changing system for paint supply according to claim 3, characterized in that: The detection components include a first proximity switch (23) and a second proximity switch (26) mounted on the receiving valve block (1). The first proximity switch (23) is located in front of the second proximity switch (26) and between the first recovery valve (22) and the second recovery valve (25). The first proximity switch (23) is used to detect the position of the first ball bearing, and the second proximity switch (26) is used to detect the position of the second ball bearing. When the first ball enters the receiving valve block (1) and is detected by the first proximity switch (23), the controller controls the first recovery valve (22) to close and controls the second recovery valve (25) to open. When the second ball enters the receiving valve block (1) and is detected by the second proximity switch (26), the controller controls the second recovery valve (25) to close.

5. The ball bearing receiving station of the quantitative ball bearing rapid color-changing system for paint supply according to claim 1, characterized in that: The air interface (33) includes a high-pressure air interface (331) for receiving high-pressure air and a low-pressure air interface (332) for receiving low-pressure air; the air valve (34) includes a low-pressure air valve (342) for controlling the reception of low-pressure air and a high-pressure air valve (341) for controlling the reception of high-pressure air; after the solvent valve (36) and the downstream medium valve (38) are both closed, the controller first controls the high-pressure air valve (341) to open, then controls the high-pressure air valve (341) to close and controls the low-pressure air valve (342) to open until the first ball enters the ball launching station.

6. The ball bearing receiving station of the quantitative ball bearing rapid color-changing system for paint supply according to claim 1, characterized in that: A pressure sensor (4) for detecting the pressure in the main pipeline is installed on the receiving valve block (1).

7. The ball bearing receiving station of the quantitative ball bearing rapid color-changing system for paint supply according to claim 1, characterized in that: A temperature sensor (5) for detecting the paint temperature in the main pipeline is installed on the receiving valve block (1).

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