An intelligent and environmentally friendly paint production line

Abstract

The present invention discloses an intelligent environmentally friendly paint spraying production line, comprising a cleaning device, a paint spraying device, a detection device, a dehumidifying device, a microwave drying device, and a dehumidifying device distributed in sequence along the production line; the cleaning device, the paint spraying device, the detection device, the dehumidifying device, the microwave drying device, and the dehumidifying device are all provided with a conveying device, and are connected in sequence with the conveying device; the control system comprises a main control unit, a cleaning device control unit, a paint spraying device control unit, a dehumidifying device control unit, a microwave drying device control unit, and a conveying device control unit, and the main controller unit is used to control the cleaning device control unit, the paint spraying device control unit, the dehumidifying device control unit, the microwave drying device control unit, and the conveying device control unit. The intelligent environmentally friendly paint spraying production line of the present invention has a control system that controls the workpiece to perform a series of processes including cleaning, painting, detection, dehumidification, drying, and dehumidification.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece processing, and in particular to an intelligent and environmentally friendly paint spraying production line. Background Art

[0002] At present, in order to form a protective layer or decorative layer on the surface of the workpiece during production, it is generally necessary to spray paint on the surface of the workpiece. The traditional spray painting production line mainly uses a conveyor to transport the workpiece to the spray painting station for spray painting, and then the workpiece is transported by a conveyor mechanism to dry the painted workpiece. However, in the traditional spray painting production line, the paint quality is poor and the degree of automation is low, resulting in low spray painting efficiency. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide an intelligent and environmentally friendly paint spraying production line, whose control system controls the workpiece to perform a series of processes including cleaning, painting, testing, dehumidification, drying and dehumidification.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] An intelligent environmentally friendly paint spraying production line comprises a control system and a cleaning device, a paint spraying device, a detection device, a dehumidifying device, a microwave drying device and a dehumidifying device which are sequentially distributed along the production line; the cleaning device, the paint spraying device, the detection device, the dehumidifying device, the microwave drying device and the dehumidifying device are all provided with a conveying device, and are sequentially connected with the conveying device; the cleaning device is used to clean the surface of a workpiece; the paint spraying device is used to spray paint on the workpiece; the detection device is used to detect the paint spraying condition of the workpiece; the dehumidifying device is used to remove moisture from the surface of the workpiece; the microwave drying device is used to perform microwave drying on the surface of the workpiece;

[0006] The control system includes a main control unit, a cleaning device control unit, a paint spraying device control unit, a dehumidifying device control unit, a microwave drying device control unit and a conveying device control unit. The main control unit is used to control the cleaning device control unit, the paint spraying device control unit, the dehumidifying device control unit, the microwave drying device control unit and the conveying device control unit; the cleaning device control unit, the paint spraying device control unit, the dehumidifying device control unit, the microwave drying device control unit and the conveying device control unit are used to control the automatic operation of the cleaning device, the paint spraying device, the detection device, the dehumidifying device, the microwave drying device and the conveying device, respectively.

[0007] Further, the cleaning device comprises a cleaning chamber, a plurality of cleaning mechanisms and the conveying device, wherein the cleaning mechanism is arranged at the top of the cleaning chamber and is used to clean the workpiece on the conveying device; the plurality of cleaning mechanisms are distributed at intervals in the conveying direction of the conveying device;

[0008] The cleaning mechanism comprises a cleaning roller, an anti-static rod and an air blowing port, wherein the cleaning roller is pivotally connected to the cleaning chamber and is used for frictional contact with the surface of the workpiece; the anti-static rod is arranged on one side of the cleaning roller and is used for removing static electricity from the surface of the workpiece; the air blowing port faces the conveying end surface of the conveying device;

[0009] The cleaning device control unit is used to control the up and down movement of the cleaning mechanism; and is used to control the blowing time of the air outlet.

[0010] Further, the paint spraying device includes a paint spraying room, a paint spraying mechanism and the conveying device, the paint spraying mechanism includes a paint spraying gun, a detection camera and a paint spraying gun driving assembly, the paint spraying gun is installed in the paint spraying room and is located above the conveying end surface of the conveying device; the paint spraying gun driving assembly is used to drive the paint spraying gun to move in a paint spraying direction, and the paint spraying direction is perpendicular to the conveying direction of the workpiece conveying direction; the paint spraying gun driving assembly is also used to drive the paint spraying gun to move in the height direction of the paint spraying room; the detection camera is used to detect the workpiece and send a detection signal;

[0011] The paint spraying device control unit is used to control the operation of the paint spraying gun assembly according to the detection signal.

[0012] Furthermore, the paint spraying device also includes a paint spray bucket, an oil pump and a connecting pipe, and the paint spray gun is connected to the paint spray bucket through the connecting pipe; the oil pump is used to pump the paint liquid in the paint spray bucket into the paint spray gun; the paint spraying device control unit is used to control the start and stop of the oil pump.

[0013] Furthermore, the detection device includes a detection chamber and the conveying device, and the top cover of the detection chamber is made of a transparent material; and a plurality of detection cameras are provided on the top of the detection chamber.

[0014] Further, the dehumidification device includes a first dehumidification tunnel, which includes a first drying chamber, a first wind chamber and a heat exchange chamber; a first air outlet and a first air inlet are provided at the top of the first drying chamber, the first wind chamber and the heat exchange chamber are both installed at the top of the first drying chamber, one end of the first wind chamber is connected to the first air outlet, and the other end of the first wind chamber is connected to one end of the heat exchange chamber; the other end of the heat exchange chamber is connected to the first air inlet; a first fan is provided in the first wind chamber; a heat exchanger is provided in the heat exchange chamber; an air plate is provided at the top of the first drying chamber, and an air cavity is formed between the air plate and the top wall of the first drying chamber; the first air outlet and the first air inlet are both connected to the top of the air cavity; a plurality of air outlet holes are provided on the air plate;

[0015] The dehumidification device control unit is used to control the air supply volume of the first fan.

[0016] Furthermore, the microwave drying device includes a second drying chamber, a conveying device and a heat circulation mechanism, a microwave generating mechanism is provided at the top of the second drying chamber, and the microwave generating mechanism is used to generate microwaves to heat the second drying chamber; a second air inlet is provided at the top of the second drying chamber; the heat circulation mechanism includes a second air chamber, a second fan and a water pipe, the second air chamber is installed at the top of the second drying chamber; the second fan is installed in the second air chamber, the inlet of the second fan is connected to the outside of the second air chamber; the outlet of the second fan is connected to the second air inlet; the water pipe is fixed to the top of the second drying chamber, and the water pipe is used to introduce water for cooling the microwave generating mechanism; the water in the water pipe is used to absorb heat after cooling the microwave generating mechanism, and heat the air at the second air inlet;

[0017] The microwave drying device control unit is used to control the air supply volume of the second fan.

[0018] Furthermore, the microwave generating mechanism comprises a microwave generator and a microwave conduit, both of which are fixedly connected to the top of the second drying chamber; the microwave generator is arranged at the end of the microwave conduit; the extension direction of the microwave conduit is perpendicular to the workpiece conveying direction; the microwave conduit is used to conduct the microwave generated by the microwave generator; and a plurality of cracks are arranged at the bottom end of the microwave conduit;

[0019] The microwave drying device control unit is also used to control the operation of the microwave generator.

[0020] Furthermore, a second air outlet and an exhaust device are provided at the top of the second drying chamber, and the exhaust device is connected to the second air outlet; the microwave drying device control unit is also used to control the start and stop of the exhaust device.

[0021] Furthermore, the conveying device control system is used to control the conveying speed of the conveying device.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the workpiece can be sequentially transported to the cleaning device, the painting device, the detection device, the dehumidification device, the microwave drying device, and the dehumidification device through the conveying device; the workpiece is subjected to a series of processes including cleaning, painting, detection, dehumidification, drying, and dehumidification, that is, the workpiece is sprayed with paint after the surface is cleaned, and the surface of the workpiece is detected after the painting is completed, and then dehumidified and initially air-dried, and then the workpiece is sent to the microwave drying device for microwave drying, and then the workpiece is sent to the dehumidification device for further air drying and dehumidification, thereby improving the quality of the painting;

[0023] In addition, the main control unit of the control system can respectively control the cleaning device control unit, the paint spraying device control unit, the dehumidification device control unit, the microwave drying device control unit and the conveying device control unit, and correspondingly control the automatic operation of the cleaning device, the paint spraying device, the detection device, the dehumidification device, the microwave drying device and the conveying device, so that cleaning, painting, detection, dehumidification, drying and dehumidification can be automatically completed, thereby improving the degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The intelligent and environmentally friendly paint spraying production line of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the cleaning device of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the paint spraying device of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the first scraper assembly of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the second scraper assembly of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the dehumidification device of the present invention;

[0030] Figure 7 It is a schematic structural diagram of the microwave drying device of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the curing device of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the control system of the present invention.

[0033] In the figure: 10, paint spraying device; 11, paint spraying room; 12, paint spraying mechanism; 13, first scraper assembly; 131, first mounting frame; 132, first cleaning roller; 133, first scraper; 134, first collecting trough; 14, second scraper assembly; 141, second mounting frame; 142, second cleaning roller; 143, second scraper; 144, second collecting trough; 20, cleaning device; 21, cleaning room; 22, blowing pipe; 30, detection device; 40, dehumidification device; 41, first drying room; 411, first air outlet; 412 , first air inlet; 413, wind plate; 4131, air outlet; 42, first air chamber; 43, first fan; 44, heat exchange chamber; 45, heat exchanger; 50, microwave drying device; 51, second drying chamber; 511, second air inlet; 512, water load pipe; 513, microwave unloading pipe; 514, second air outlet; 52, microwave generating mechanism; 53, second air chamber; 531, second fan; 532, water pipe; 54, exhaust device; 60, curing device; 61, curing chamber; 62, curing lamp; 70, conveying device. DETAILED DESCRIPTION

[0034] Below, the present invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0035] like Figure 1-9 An intelligent environmentally friendly paint spraying production line shown includes a control system, a cleaning device 20, a paint spraying device 10, a detection device 30, a dehumidifying device 40, a microwave drying device 50, and a dehumidifying device 40 distributed in sequence along the production line. The cleaning device 20, the paint spraying device 10, the detection device 30, the dehumidifying device 40, the microwave drying device 50, and the dehumidifying device 40 are all provided with a conveying device 70, and on the production line, the above-mentioned cleaning device 20, the paint spraying device 10, the detection device 30, the dehumidifying device 40, the microwave drying device 50, and the dehumidifying device 40 can be connected in sequence with the conveying device 70, that is, the workpiece can reach the cleaning device 20, the paint spraying device 10, the detection device 30, the dehumidifying device 40, the microwave drying device 50, and the dehumidifying device 40 in sequence through the conveying device 70. Specifically, the cleaning device 20 can clean the surface of the workpiece, and the paint spraying device 10 is used to spray paint on the workpiece. And the detection device 30 can detect the painting condition of the workpiece. The dehumidification device 40 is used to remove moisture from the surface of the workpiece; the microwave drying device 50 is used to perform microwave drying on the surface of the workpiece.

[0036] The control system includes a main control unit, a cleaning device 20 control unit, a paint spraying device 10 control unit, a dehumidifying device 40 control unit, a microwave drying device 50 control unit and a conveying device 70 control unit. The main control unit is used to control the cleaning device 20 control unit, the paint spraying device 10 control unit, the dehumidifying device 40 control unit, the microwave drying device 50 control unit and the conveying device 70 control unit; the cleaning device 20 control unit, the paint spraying device 10 control unit, the dehumidifying device 40 control unit, the microwave drying device 50 control unit and the conveying device 70 control unit are used to control the automatic operation of the cleaning device 20, the paint spraying device 10, the detection device 30, the dehumidifying device 40, the microwave drying device 50 and the conveying device 70 respectively.

[0037] On the basis of the above structure, when using the intelligent environmental protection painting production line of the present invention, the workpiece can be placed on the conveying device 70, and the conveying device 70 can convey the workpiece to the cleaning device 20. Under the action of the cleaning device 20, the surface of the workpiece on the conveying device 70 can be cleaned. Thereafter, the conveying device 70 conveys the workpiece to the painting device 10, and the workpiece is received and conveyed to the painting station by the conveying device 70 of the painting device 10. The painting device 10 can paint the workpiece with a clean surface, which can avoid the dust on the surface of the workpiece affecting the quality of the painting. After the painting is completed, the conveying device 70 can convey the workpiece to the detection device 30, and the detection device 30 performs detection to detect whether the painting is uneven or residual. After the detection is qualified, the conveying device 70 conveys the workpiece to the dehumidification device 40 for dehumidification and air drying, and the paint surface of the workpiece is preliminarily dried. Thereafter, the conveying device 70 conveys the workpiece to the microwave drying place for microwave drying. The microwave drying is fast and uniform, so that the workpiece paint surface drying effect is better. After the drying is completed, the conveying device 70 conveys the workpiece to the next dehumidifying device 40 for another dehumidification and drying process, which has a better effect.

[0038] It should be noted that the main control unit of the above-mentioned control system can respectively control the cleaning device 20 control unit, the paint spraying device 10 control unit, the dehumidification device 40 control unit, the microwave drying device 50 control unit and the conveying device 70 control unit, and correspondingly control the automatic operation of the cleaning device 20, the paint spraying device 10, the detection device 30, the dehumidification device 40, the microwave drying device 50 and the conveying device 70, so that cleaning, painting, detection, dehumidification, drying and dehumidification can be automatically completed under the control of the main control unit, thereby improving the degree of automation.

[0039] In this way, the workpiece can be transported to the cleaning device 20, the painting device 10, the detection device 30, the dehumidification device 40, the microwave drying device 50, and the dehumidification device 40 in sequence through the conveying device 70; the workpiece can be cleaned, painted, detected, dehumidified, dried and dehumidified to improve the quality and efficiency of painting.

[0040] It should be noted that the above-mentioned conveying device 70 can select the belt conveying mechanism, chain conveying mechanism or roller conveying mechanism in the prior art. Taking the belt conveying mechanism as an example, the belt conveying mechanism passes through the cleaning device 20, the paint spraying device 10, the detection device 30, the dehumidification device 40, the microwave drying device 50, and the partial conveying section of the dehumidification device 40 in sequence to form the corresponding conveying device 70. Of course, the conveying device 70 can also be a belt conveying mechanism set in the corresponding device respectively. When using the production line, each belt conveying mechanism can be connected.

[0041] Based on this structure, the control unit of the conveying device 70 can control the conveying speed of the conveying device 70 by controlling the rotation speed of the motor, so that the workpiece has enough residence time when it arrives at the corresponding workstation for easy processing.

[0042] Furthermore, in the present embodiment, the cleaning device 20 includes a cleaning chamber 21, a plurality of cleaning mechanisms and the conveying device 70. The conveying device 70 is arranged at the bottom end of the cleaning chamber 21, and the cleaning mechanism is arranged at the top end of the cleaning chamber 21. The cleaning mechanism can clean the workpiece on the conveying device 70, and the plurality of cleaning mechanisms are distributed at intervals in the conveying direction of the conveying device 70.

[0043] Specifically, the cleaning mechanism includes a cleaning roller, an antistatic rod, and an air blowing port. The cleaning roller is pivotally connected to the cleaning chamber 21 and is used for friction contact with the surface of the workpiece. The antistatic rod is provided on one side of the cleaning roller and is used for removing static electricity from the surface of the workpiece. The air blowing port faces the conveying end surface of the conveying device 70. The air blowing port can introduce air into the cleaning chamber 21 through the air blowing pipe 22 provided at the top of the cleaning chamber 21.

[0044] On the basis of this structure, during the cleaning operation, the conveying device 70 conveys the workpiece to the cleaning chamber 21, and the cleaning roller at the top of the cleaning chamber 21 can clean and remove dust from the surface of the workpiece during the rotation process. After that, the anti-static rod arranged on one side of the cleaning roller can contact the workpiece to prevent static electricity from being generated during the cleaning process of the cleaning roller. Of course, a blowing pipe 22 is arranged at the top of the cleaning chamber 21 to communicate with the blowing port, and introduces blowing air to the surface of the workpiece for dust removal. In this way, with the cleaning roller and blowing dust removal, the cleaning effect is better.

[0045] The above-mentioned cleaning device 20 control unit is used to control the up and down movement of the cleaning mechanism. Specifically, a cleaning mechanism lifting assembly can be set in the cleaning chamber 21, and the lifting assembly can drive the cleaning mechanism to move up and down. A height sensor is set in the cleaning chamber 21, and the movement height of the cleaning mechanism is detected by the height sensor. When the height of the workpiece is contacted, the height sensor can transmit the height position to the cleaning device 20 control unit to control the cleaning mechanism to stop in time.

[0046] The control unit of the cleaning device 20 can also be used to control the blowing time of the air outlet, that is, the air outlet is connected to an external hair dryer through a ventilation pipe, and the control unit of the cleaning device 20 can control the air output by the blowing time and blowing speed of the hair dryer.

[0047] It should be noted that the cleaning roller can be realized by using a cleaning brush in the prior art.

[0048] Furthermore, the paint spraying device 10 includes a paint spraying room 11, a paint spraying mechanism 12 and the above-mentioned conveying device 70. The conveying device 70 is provided at the bottom end of the paint spraying room 11. Specifically, the paint spraying mechanism 12 includes a paint spray gun, a detection camera and a paint spray gun driving assembly. The paint spray gun is installed in the paint spraying room 11 and is located above the conveying end surface of the conveying device 70. The paint spray gun driving assembly is used to drive the paint spray gun to move in a paint spraying direction, and the paint spraying direction is perpendicular to the conveying direction of the workpiece. The paint spray gun driving assembly is also used to drive the paint spray gun to move in the height direction of the paint spraying room 11. The above-mentioned detection camera is used to detect the workpiece and send a detection signal;

[0049] It should be noted that, in the present embodiment, the conveying direction of the conveying device 70 may be the length direction of the workpiece itself, and the painting direction perpendicular to the conveying direction of the conveying device 70 may be the width direction of the workpiece itself.

[0050] On the basis of the above structure, the conveying device 70 at the bottom of the paint spraying room 11 can receive the cleaned workpiece sent from the cleaning room 21. Driven by the conveying device 70, the workpiece can be transported to the paint spraying room 11, and the paint gun in the paint spraying room can spray paint on the workpiece on the conveying device 70. The paint gun can move up and down to adjust the paint spraying distance between the paint gun and the workpiece, and the paint gun can move in the paint spraying direction, that is, reciprocate in the width direction of the workpiece, and the workpiece is continuously transported in the conveying direction of the conveying device 70, that is, the paint gun can spray paint in sequence in the length direction of the workpiece. In this way, the painting operation of different positions of the workpiece is completed, with a high degree of automation and high painting efficiency.

[0051] It should be noted that during the painting process, the detection camera can move with the paint spray gun driven by the paint spray gun driving assembly, so that the painting condition of the workpiece can be detected in real time. According to the painting condition of the workpiece, the control unit of the paint spray device 10 can control the operation of the paint spray gun assembly, that is, the movement height and movement position of the paint spray gun can be controlled.

[0052] Of course, the above-mentioned paint spray gun driving assembly can be realized by using an electric slide combination in the prior art, that is, electric slides are arranged in the paint spraying direction and the height direction of the paint spraying room 11, and the combination realizes the movement of the paint spray gun in the paint spraying direction and the height direction.

[0053] Furthermore, in this embodiment, the paint spraying device 10 also includes a paint spraying bucket, an oil pump and a connecting pipe, and the paint spraying gun can be connected to the paint spraying bucket through the connecting pipe. The oil pump can be set on the paint spraying bucket to pump the paint liquid in the paint spraying bucket into the paint spraying gun, and the control unit of the paint spraying device 10 is used to control the start and stop of the oil pump. That is, when the painting operation is required, the main control unit of the control system can control the control unit of the paint spraying device 10 to start the oil pump, and the oil pump pumps the paint liquid into the paint spraying gun for the painting operation, and the working time of the oil pump can be controlled to control the paint spraying beam.

[0054] Furthermore, the paint spraying device 10 also includes a cleaning and recycling system, which is arranged at the conveying end of the conveying mechanism and is used to scrape off the residual paint at the conveying end of the conveying mechanism for recycling. The cleaning and recycling system includes a first scraper assembly 13 and a second scraper assembly 14. Specifically, the first scraper assembly 13 includes a first mounting frame 131, a first cleaning roller 132, a first scraper 133 and a first collecting trough 134. Specifically, the first mounting frame 131 is fixedly connected to the conveying end of the conveying mechanism, and the first cleaning roller 132 is pivotally connected to the top of the first mounting frame 131. The first cleaning roller 132 is used to contact the conveying end of the conveying mechanism. In addition, the first scraper 133 is fixed to one side of the first cleaning roller 132 and contacts the first cleaning roller 132, and the first collecting trough 134 is fixedly connected to the first mounting frame 131. The first collecting trough 134 is used to receive the residual paint scraped off by the first scraper 133.

[0055] In addition, the second scraper assembly 14 includes a second mounting frame 141, a second cleaning roller 142, a second scraper 143 and a second collecting trough 144. The second mounting frame 141 is arranged below the conveying device 70, and the second cleaning roller 142 is pivotally connected to the top of the second mounting frame 141. Of course, the second cleaning roller 142 is used to contact the bottom end surface of the conveying device 70; the second scraper 143 is fixed to one side of the second cleaning roller 142 and contacts the second cleaning roller 142; the second collecting trough 144 is fixed to the second mounting frame 141 and is used to receive the residual paint scraped off by the second scraper 143.

[0056] On the basis of this structure, when scraping off the residual paint, the first cleaning roller 132 can be driven to rotate by a motor. When the first cleaning roller 132 rotates, the residual paint at the conveying end of the conveying mechanism can adhere to its own surface. At the same time, during the rotation process, the first scraper 133 in contact with the surface of the first cleaning roller 132 can scrape off the residual paint on the surface of the first cleaning roller 132, and the scraped residual paint can fall into the first collecting trough 134 for recovery.

[0057] In addition, since the existing conveying device 70 is mainly a conveying mechanism that performs rotating motion, such as a belt conveying mechanism, a chain conveying mechanism or a roller conveying mechanism, that is, it will rotate after the workpiece is conveyed to the end, that is, after the first scraper assembly 13 can scrape off the residual paint at the conveying end of the conveying mechanism, the conveyor belt passing through the conveying roller can continue to be transmitted to the bottom of the conveying frame. At this time, the motor can drive the second cleaning roller 142 to rotate, and the rotating second cleaning roller 142 can contact the lower surface of the conveyor belt to further clean the conveyor belt, and the second scraper 143 can scrape off the residual paint or dust on the surface of the second cleaning roller 142, and the second collecting trough 144 can further recover the residual paint or dust, and the cleaning and recovery effect is better.

[0058] Furthermore, the detection device 30 in this embodiment includes a detection chamber and a conveying device 70. The conveying device 70 is connected to the bottom of the detection chamber. The top cover of the detection chamber is made of transparent material. A plurality of detection cameras are arranged at the top of the detection chamber. In this way, when the conveying device 70 of the detection device 30 receives the workpiece conveyed by the paint spraying device 10, the plurality of detection cameras can detect the workpiece in the detection chamber, and detect the uniformity of the paint spraying and the residual paint. Since the top cover of the detection chamber is made of transparent material, the operator can also observe the paint spraying of the workpiece with the naked eye from the top of the detection chamber, and the detection is more comprehensive.

[0059] The control unit of the detection device 30 can collect information collected by multiple detection cameras, record the painting status of the workpiece, and the main control unit can perform touch-up painting or other instructions in a timely manner based on the information.

[0060] Further, the dehumidification device 40 includes a first dehumidification tunnel, which includes a first drying chamber 41, a first air chamber 42 and a heat exchange chamber 44. The above-mentioned conveying device 70 can be arranged at the bottom end of the first drying chamber 41, and a first air outlet 411 and a first air inlet 412 are arranged at the top of the first drying chamber 41. The first air chamber 42 and the heat exchange chamber 44 are both installed at the top of the first drying chamber 41, so that one end of the first air chamber 42 is connected to the first air outlet 411, and the other end of the first air chamber 42 is connected to one end of the heat exchange chamber 44. In addition, the other end of the heat exchange chamber 44 is connected to the first air inlet 412. Specifically, a first fan 43 is arranged in the first air chamber 42, and a heat exchanger 45 is arranged in the heat exchange chamber 44.

[0061] On the basis of the above structure, the conveying device 70 of the drying chamber receives the workpiece conveyed by the detection device 30 and conveys it to the first drying chamber 41. The first drying chamber 41 can be heated by the heating device, and the first fan 43 is started. The hot steam generated by drying can flow to the first wind chamber 42 through the exhaust action of the first fan 43, and flow to the heat exchange chamber 44 through the first wind chamber 42. During the exhaust process, the heat of the hot steam may have been partially dissipated. Therefore, when it reaches the heat exchange chamber 44, it can exchange heat with the heat exchanger 45, and be reheated after heat exchange through the heat exchanger 45. The reheated hot air can then enter the first drying chamber 41, and the heat is recycled for drying, thereby reducing the waste of resources.

[0062] Based on this structure, the control unit of the dehumidification device 40 is used to control the air supply of the first fan 43, that is, the working time of the first fan 43 is controlled by the dehumidification control unit, and the start and stop of the first fan 43 are controlled, so that the air supply of the first fan 43 is controlled.

[0063] Of course, a wind plate 413 may be provided at the top of the first drying chamber 41, and a wind cavity is formed between the wind plate 413 and the top wall of the first drying chamber 41, and the first air outlet 411 and the first air inlet 412 are both connected to the top of the air cavity; a plurality of air outlet holes 4131 are provided on the wind plate 413. In this way, when exhausting, the air in the first drying chamber 41 can be guided to the air cavity through the plurality of air outlets, and then drawn out through the first air outlet 411. When intake, the air can be introduced into the air cavity through the first air inlet 412, and evenly guided to the surface of the workpiece through the plurality of air outlet holes 4131, so that the drying effect is more uniform.

[0064] It should be noted that two of the above-mentioned dehumidification devices 40 can be arranged between the detection device 30 and the microwave drying device 50, and one of the dehumidification devices 40 close to the detection device 30 can select an ordinary dehumidification device 40 in the prior art, that is, the dehumidification device 40 may include a second dehumidification tunnel and an exhaust fan, and the above-mentioned conveying device 70 is arranged in the second dehumidification tunnel. The conveying device 70 conveys the workpiece conveyed by the inspection device to the first dehumidification tunnel. The exhaust fan dehumidifies the workpiece in the second dehumidification tunnel, and then ordinary air drying can be carried out.

[0065] The conveying device 70 in the second dehumidification tunnel then conveys the workpiece to the first drying chamber 41 of the first dehumidification tunnel for hot air circulation dehumidification.

[0066] Furthermore, the microwave drying device 50 in this embodiment includes a second drying chamber 51 and a heat circulation mechanism, the conveying device 70 is arranged in the second drying chamber 51, and a microwave generating mechanism 52 is arranged at the top of the second drying chamber 51, the microwave generating mechanism 52 is used to generate microwaves to heat the second drying chamber 51, so as to heat the workpiece conveyed by the workpiece conveying mechanism. In addition, a second air inlet 511 is arranged at the top of the second drying chamber 51.

[0067] Specifically, the heat circulation mechanism includes a second air chamber 53, a second fan 531 and a water pipe 532. The second air chamber 53 is installed at the top of the second drying chamber 51. The second fan 531 is installed in the second air chamber 53. The inlet of the second fan 531 is connected to the outside of the second air chamber 53, and the outlet of the second fan 531 is connected to the second air inlet 511. The water pipe 532 can be fixed at the top of the second drying chamber 51. Specifically, the water pipe 532 can be arranged around the microwave generating mechanism 52 and the outer periphery of the second air inlet 511. Water can be introduced into the water pipe 532 to cool the microwave generating mechanism 52. The water in the water pipe 532 can absorb heat after cooling the microwave generating mechanism 52, and the water after absorbing heat can heat the air of the second air inlet 511.

[0068] Based on the above structure, the conveying device 70 of the second drying chamber 51 can receive the workpiece conveyed by the first dehumidification tunnel, and can convey the workpiece to the second drying chamber 51. At the same time, the microwave generating mechanism 52 can generate microwaves to heat the second drying chamber 51, thereby heating the workpiece conveyed by the workpiece conveying mechanism.

[0069] At the same time, the water pipe 532 in the second drying chamber 51 can introduce cooling water to cool the microwave generating mechanism 52. The cooled water absorbs heat to reheat the air from the second air inlet 511, and the hot air enters the second drying chamber 51 to assist in drying. The auxiliary drying reduces the energy consumption of the microwave generating mechanism 52, and the microwave generating mechanism 52 can be cooled in time to extend its service life.

[0070] During the actual drying process, water vapor may also be generated in the second drying chamber 51 and needs to be discharged to the outside. Therefore, a second air outlet 514 can be opened at the top of the second drying chamber 51. The second air outlet 514 can be connected to the exhaust device 54, and the exhaust device 54 can exhaust the hot and humid gas in the second drying chamber 51 through the second air outlet 514.

[0071] The control unit of the microwave drying device 50 is used to control the air supply of the second fan 531, that is, the working time of the second fan 531 is controlled by the control unit of the microwave drying device 50, and the start and stop of the second fan 531 are controlled, so that the air supply of the second fan 531 is controlled, and the drying temperature and flow rate required in the actual working process are controlled. In addition, the microwave drying device 50 unit can also control the exhaust device 54, and also control the working time of the exhaust device 54. The main control unit can regulate the operation of the second fan 531 and the exhaust device 54 to balance the air volume in the drying chamber.

[0072] Furthermore, in this embodiment, the microwave generating mechanism 52 includes a microwave generator and a microwave conduit, which are both fixed to the top of the second drying chamber 51, and the microwave generator is arranged at the end of the microwave conduit, and the extension direction of the microwave conduit is perpendicular to the workpiece conveying direction; the microwave conduit is used to conduct the microwave generated by the microwave generator. Specifically, a plurality of cracks are arranged at the bottom end of the microwave conduit.

[0073] In this way, when microwave heating is performed, the microwave generator can be started, and the microwaves generated by the microwave generator can be guided through the microwave duct. Since a plurality of cracks are provided at the bottom end of the microwave duct, the microwaves can be transmitted through the cracks of the microwave duct to the second drying chamber 51 to dry the surface of the workpiece. Since the microwaves are first transmitted through the microwave duct in a direction perpendicular to the workpiece conveying direction and then guided out through each crack, the emission of the microwaves changes from a point to a line or a surface, and microwave heating and drying are performed on each surface of the workpiece. The microwaves are evenly distributed, and the drying effect is better.

[0074] The microwave generator can be a microwave magnetron in the prior art. The microwave drying device 50 control unit controls the output power of the microwave magnetron and controls the microwaves generated by the microwave magnetron, so that the drying temperature can be reasonably controlled.

[0075] Furthermore, a water loading mechanism and a microwave unloading mechanism are also provided in the second drying chamber 51. The water loading mechanism is used to absorb microwaves. The starting end and the end of the conveying device 70 are both provided with water loading mechanisms. A plurality of microwave unloading mechanisms are provided below the conveying end surface of the conveying device 70. Specifically, the water loading mechanism may include a plurality of water loading tubes 512. Similarly, the microwave unloading mechanism may also include a microwave unloading tube 513. A water medium used for microwave absorption may be introduced into the water loading tube 512 and the microwave unloading tube 513.

[0076] Specifically, multiple water-loading tubes 512 are distributed at intervals in the workpiece conveying direction, and the extension direction of the water-loading tubes 512 is perpendicular to the workpiece conveying direction. Water is introduced into the multiple water-loading tubes 512, and water media that can be used for microwave absorption can be distributed in the workpiece conveying direction and in the direction perpendicular to the workpiece conveying direction. The absorption surface formed by the multiple water-loading tubes 512 is larger, and the microwave absorption effect is better. In addition, multiple water-loading tubes 512 are provided above and below the conveying end surface of the conveying device 70, and water is used to absorb microwaves above and below the conveying device 70, and the radiation protection effect is better.

[0077] The microwave unloading mechanism distributed below the conveying end surface of the conveying device 70 can also absorb microwaves. When the workpiece is placed on the conveying device 70 and the workpiece is small in size, the conveying end surface of the conveying device 70 will not be completely covered. When the microwave enters the drying chamber, the microwaves on both sides of the workpiece will not be absorbed by the workpiece, but will be concentrated on the conveying end surface of the conveying device 70, resulting in uneven microwave distribution. Therefore, a plurality of microwave unloading mechanisms are arranged below the conveying end surface of the conveying device 70 to absorb microwaves not absorbed by the workpiece. On the one hand, this prevents microwaves from leaking from the bottom of the conveying device 70 and causing radiation. On the other hand, it can also make the microwave distribution in the drying chamber uniform and the microwave density consistent, thereby improving the drying and molding quality.

[0078] It should be noted that the water loading tube 512 and the microwave unloading tube 513 can both be non-metallic tubes in the prior art (such as plastic water pipe 532 ).

[0079] Furthermore, the intelligent and environmentally friendly paint production line also includes a curing device 60. A cleaning device 20, a paint spraying device 10, a detection device 30, a dehumidification device 40, a microwave drying device 50, a dehumidification device 40, and a curing device 60 are distributed in sequence along the production line. In this way, after the workpiece has undergone a series of processes of cleaning, painting, detection, dehumidification, drying and dehumidification in sequence, it can finally be transported by the conveying device 70 to the curing device 60 for curing, so that the paint surface is cured.

[0080] The curing device 60 in this embodiment includes a curing chamber 61 and a curing lamp 62. The curing lamp 62 can be a UV lamp in the prior art. The curing lamp 62 is installed at the top of the curing chamber 61. The bottom of the curing chamber 61 is provided with the above-mentioned conveying device 70. The conveying device 70 receives the workpiece sent by the dehumidifying device 40, and the curing lamp 62 cures the workpiece on the conveying device 70. Of course, the control system can also include a curing device 60 control unit. The curing device 60 control unit can control the output power and working time of the curing lamp 62, so that the curing time can be controlled.

[0081] It should be noted that the main control unit can record the control data of each cleaning device 20 control unit, the paint spraying device 10 control unit, the dehumidification device 40 control unit, the microwave drying device 50 control unit and the conveying device 70 control unit, so as to facilitate the control operation directly according to the relevant data in the subsequent work process. In addition, each of the above control units can be implemented by a control chip or a single-chip microcomputer in the prior art, and each unit can be connected by telecommunications.

[0082] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. An intelligent and environmentally friendly paint spraying production line, characterized in that: It includes a control system and a cleaning device, a paint spraying device, a detection device, a dehumidifying device, a microwave drying device, and a dehumidifying device which are sequentially distributed along the production line; the cleaning device, the paint spraying device, the detection device, the dehumidifying device, the microwave drying device, and the dehumidifying device are all provided with a conveying device, and are sequentially connected with the conveying device; the cleaning device is used to clean the surface of the workpiece; the paint spraying device is used to spray paint on the workpiece; the detection device is used to detect the paint spraying condition of the workpiece; the dehumidifying device is used to remove moisture from the surface of the workpiece; the microwave drying device is used to perform microwave drying on the surface of the workpiece; The control system includes a main control unit, a cleaning device control unit, a paint spraying device control unit, a dehumidifying device control unit, a microwave drying device control unit and a conveying device control unit, wherein the main control unit is used to control the cleaning device control unit, the paint spraying device control unit, the dehumidifying device control unit, the microwave drying device control unit and the conveying device control unit; the cleaning device control unit, the paint spraying device control unit, the dehumidifying device control unit, the microwave drying device control unit and the conveying device control unit are used to control the automatic operation of the cleaning device, the paint spraying device, the detection device, the dehumidifying device, the microwave drying device and the conveying device respectively; The cleaning device comprises a cleaning chamber, a plurality of cleaning mechanisms and the conveying device, wherein the conveying device is arranged at the bottom end of the cleaning chamber, the cleaning mechanism is arranged at the top end of the cleaning chamber, and the plurality of cleaning mechanisms are distributed at intervals in the conveying direction of the conveying device; The cleaning mechanism comprises a cleaning roller, an anti-static rod and an air blowing port, wherein the cleaning roller is pivotally connected to the cleaning chamber; the anti-static rod is arranged on one side of the cleaning roller; and the air blowing port faces the conveying end surface of the conveying device; The cleaning device control unit is used to control the up and down movement of the cleaning mechanism. A cleaning mechanism lifting component is arranged in the cleaning chamber. The lifting component drives the cleaning mechanism to move up and down. A height sensor is arranged in the cleaning chamber. The dehumidification device comprises a first dehumidification tunnel, which comprises a first drying chamber, a first wind chamber and a heat exchange chamber; a first air outlet and a first air inlet are arranged at the top of the first drying chamber, the first wind chamber and the heat exchange chamber are both installed at the top of the first drying chamber, one end of the first wind chamber is connected with the first air outlet, and the other end of the first wind chamber is connected with one end of the heat exchange chamber; the other end of the heat exchange chamber is connected with the first air inlet; a first fan is arranged in the first wind chamber; a heat exchanger is arranged in the heat exchange chamber; an air plate is arranged at the top of the first drying chamber, and an air cavity is formed between the air plate and the top wall of the first drying chamber; the first air outlet and the first air inlet are both connected with the top of the air cavity; a plurality of air outlet holes are arranged on the air plate; The dehumidification device control unit is used to control the air supply volume of the first fan; The microwave drying device comprises a second drying chamber, a conveying device and a heat circulation mechanism, wherein a microwave generating mechanism is provided at the top of the second drying chamber, and the microwave generating mechanism is used to generate microwaves to heat the second drying chamber; a second air inlet is provided at the top of the second drying chamber; the heat circulation mechanism comprises a second air chamber, a second fan and a water pipe, wherein the second air chamber is installed at the top of the second drying chamber; the second fan is installed in the second air chamber, and the inlet of the second fan is connected to the outside of the second air chamber; the outlet of the second fan is connected to the second air inlet; the water pipe is fixedly connected to the top of the second drying chamber, and the water pipe is used to introduce water for cooling the microwave generating mechanism; the water in the water pipe is used to absorb heat after cooling the microwave generating mechanism, and heat the air at the second air inlet; The microwave drying device control unit is used to control the air supply volume of the second fan; The microwave generating mechanism comprises a microwave generator and a microwave conduit, both of which are fixedly connected to the top of the second drying chamber; the microwave generator is arranged at the end of the microwave conduit; the extension direction of the microwave conduit is perpendicular to the workpiece conveying direction; the microwave conduit is used to conduct the microwave generated by the microwave generator; a plurality of cracks are arranged at the bottom end of the microwave conduit; The microwave drying device control unit is also used to control the operation of the microwave generator; The second drying chamber is provided with a second air outlet and an exhaust device at the top thereof, and the exhaust device is connected to the second air outlet; the microwave drying device control unit is also used to control the start and stop of the exhaust device; The second drying chamber is also provided with a water loading mechanism and a microwave unloading mechanism; the water loading mechanism is provided at the starting end and the end end of the conveying device; and a plurality of microwave unloading mechanisms are arranged below the conveying end surface of the conveying device.

2. The intelligent environmentally friendly paint spraying production line according to claim 1, characterized in that: The cleaning device control unit is used to control the blowing time of the blowing port.

3. The intelligent and environmentally friendly paint spraying production line according to claim 1, characterized in that: The paint spraying device comprises a paint spraying room, a paint spraying mechanism and the conveying device. The paint spraying mechanism comprises a paint spraying gun, a detection camera and a paint spraying gun driving assembly. The paint spraying gun is installed in the paint spraying room and is located above the conveying end surface of the conveying device. The paint spraying gun driving assembly is used to drive the paint spraying gun to move in a paint spraying direction, and the paint spraying direction is perpendicular to the conveying direction of the workpiece conveying direction. The paint spraying gun driving assembly is also used to drive the paint spraying gun to move in the height direction of the paint spraying room. The detection camera is used to detect the workpiece and send a detection signal. The paint spraying device control unit is used to control the operation of the paint spraying gun assembly according to the detection signal.

4. The intelligent environmentally friendly paint spraying production line according to claim 3, characterized in that: The paint spraying device also includes a paint spray bucket, an oil pump and a connecting pipe, and the paint spray gun is connected to the paint spray bucket through the connecting pipe; the oil pump is used to pump the paint liquid in the paint spray bucket into the paint spray gun; the paint spraying device control unit is used to control the start and stop of the oil pump.

5. The intelligent and environmentally friendly paint spraying production line according to claim 1, characterized in that: The detection device comprises a detection chamber and the conveying device. The top cover of the detection chamber is made of a transparent material. A plurality of detection cameras are arranged on the top of the detection chamber.

6. The intelligent and environmentally friendly paint spraying production line according to claim 1, characterized in that: The conveying device control system is used to control the conveying speed of the conveying device.

7. The intelligent and environmentally friendly paint spraying production line according to claim 1, characterized in that: The water loading mechanism includes a plurality of water loading tubes, and the microwave unloading mechanism also includes a microwave unloading tube, and water medium for microwave absorption is introduced into both the water loading tube and the microwave unloading tube; The multiple water-loading pipes are distributed at intervals in the workpiece conveying direction, and the extending direction of the water-loading pipes is perpendicular to the workpiece conveying direction; multiple water-loading pipes are arranged above and below the conveying end surface of the conveying device.

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