Automatic transmission line for cathode electrophoretic coating

Abstract

The utility model discloses an automatic transmission line for cathode electrophoretic coating, which relates to the technical field of coating and comprises a bottom plate, a placing frame arranged at the top end of the bottom plate, a metal grabbing component arranged at the top end of the placing frame, a cathode electrophoresis tank arranged on one side of the metal grabbing component, and an auxiliary component arranged inside the cathode electrophoresis tank. A curing assembly is arranged in the middle of the conveying assembly and located at the top end of the bottom plate. By arranging the metal grabbing assembly, metal parts can be grabbed, then the overall efficiency of a production line can be greatly improved, meanwhile, physical contact with a coating can be reduced by grabbing the metal parts through the mechanical grabbing hand, abrasion or damage to the coating in the conveying process is reduced, and the service life of the coating is prolonged. And thus, the coating integrity is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, in particular to an automatic transmission line for cathode electrophoresis coating. Background Art

[0002] Electrophoretic coating is a coating method that uses an external electric field to cause particles such as pigments and resins suspended in the electrophoretic liquid to migrate in a directional manner and deposit on the surface of a substrate at one of the electrodes. Electrophoretic coating is a special coating film formation method developed in recent years. It is the most practical construction process for water-based paints. It has the characteristics of water solubility, non-toxicity, and easy automation control. It has been rapidly widely used in the automotive, building materials, hardware, home appliances and other industries.

[0003] For example, Chinese patent CN218880109U discloses an automated transmission line for electrophoretic coating, including a bracket. Two brackets are provided, two cross bars are fixed between the two brackets, and a screw rod, an electrophoretic tank and a slider are provided between the two brackets. The automated transmission line for electrophoretic coating facilitates unloading and saves time.

[0004] However, when the electrophoretic fluid is being coated, impurities remaining from the outside or on the workpiece to be coated may fall into the electrophoretic tank, which will affect the purity of the electrophoretic fluid inside, resulting in weakened adhesion of the coating, and affecting the conductivity and uniformity of the electrophoretic fluid. The above-mentioned device cannot process the electrophoretic fluid inside the electrophoretic tank before or after coating, so uneven coating is likely to occur due to impurities in the electrophoretic fluid. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a cathode electrophoretic coating automatic transmission line to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A cathode electrophoretic coating automated transmission line comprises a base plate, a placement rack is arranged at the top of the base plate, a metal grabbing assembly is arranged at the top of the placement rack, a cathode electrophoretic tank is arranged on one side of the metal grabbing assembly, an auxiliary assembly is arranged inside the cathode electrophoretic tank, a transmission assembly is arranged at one end of the placement rack, and a curing assembly is arranged in the middle of the transmission assembly and at the top of the base plate.

[0008] Furthermore, in order to enable the grabbing of metal parts, thereby greatly improving the overall efficiency of the production line, grabbing metal parts by mechanical grippers can reduce physical contact with the coating, reduce wear or damage to the coating during transmission, and thus maintain the integrity of the coating. The metal grabbing assembly includes a connecting plate installed on the top of the placement rack, a servo motor 1 is provided at the top of the connecting plate, a rotating shaft is provided on the output shaft of the servo motor 1, a rotating plate is provided on the top of the rotating shaft, and two groups of electric telescopic rods are provided on one side of the rotating plate through a connecting block; a connecting plate is provided at the bottom end of the two groups of electric telescopic rods, and two groups of mechanical grippers are provided on the top of the connecting plate through a mounting hole.

[0009] Furthermore, in order to enable the filter to have a filtering and isolating effect and prevent impurities remaining on the metal surface from falling into the interior of the cathode electrophoresis tank, thereby isolating the impurities of the electrophoresis liquid inside the cathode electrophoresis tank and ensuring that the liquid in the cathode electrophoresis tank is purer, the filter is raised by the action of the knob to facilitate the staff to remove impurities on its surface, thereby improving the convenience of operation. The auxiliary component includes a knob installed on one side of the cathode electrophoresis tank, a threaded rod is provided on one side of the knob and passes through the cathode electrophoresis tank, a movable ring is sleeved on the outer side of the threaded rod, and two groups of pulleys are provided on the outer side of the movable ring through a connecting rod, a connecting rod one is provided on the top of the pulley, a connecting rod two is provided on one side of the connecting rod one, one end of the connecting rod two is connected to the inner bottom end of the cathode electrophoresis tank, and the other end of the connecting rod two and the top of the connecting rod one are provided with a filter; the auxiliary component also includes two groups of limit plates installed inside the cathode electrophoresis tank, and one side of the pulley is connected to one side of the limit plate.

[0010] Furthermore, in order to enable the transmission of painted metal parts and thereby ensure the efficiency of painting, the transmission assembly includes several groups of support plates installed on the top of the base plate, one side of one group of support plates is provided with servo motor 2, the output shaft of servo motor 2 is provided with an active roller, the outer side of the active roller is provided with a conveyor belt, and the other side of the conveyor belt is provided with a driven roller.

[0011] Furthermore, in order to dry and cool the electrophoretic coating on the surface of metal parts by means of a hot air hood and a cold air hood, thereby ensuring the adhesion and uniformity of the coating, the curing assembly includes an air compressor installed on the top of the base plate, an air inlet pipe is provided at the top of the air compressor, a vortex tube is provided at the top of the air inlet pipe, and a heat transfer pipe and a cold transfer pipe are provided on both sides of the vortex tube; one end of the heat transfer pipe and the cold transfer pipe are respectively connected to the hot air hood and the cold air hood, and the hot air hood and the cold air hood are both installed at the top of the base plate.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model has a simple structure and is easy to operate. It not only has a transmission component to transmit the painted metal parts to ensure the efficiency of painting, but also has a curing component to dry and cool the electrophoretic coating on the surface of the metal parts through a hot air hood and a cold air hood to ensure the adhesion and uniformity of the coating.

[0014] 2. The utility model provides a metal grabbing assembly to achieve the grabbing of metal parts, thereby greatly improving the overall efficiency of the production line. At the same time, grabbing metal parts by mechanical grippers can reduce physical contact with the coating, reduce wear or damage to the coating during transmission, and thus maintain the integrity of the coating.

[0015] 3. The utility model provides auxiliary components so that the filter net can have a filtering and isolating effect, thereby preventing impurities remaining on the metal surface from falling into the cathode electrophoresis tank, thereby isolating the impurities inside the cathode electrophoresis tank and ensuring the purity of the liquid in the cathode electrophoresis tank. The filter net can be raised by the action of the knob to facilitate the staff to remove impurities on the surface, thereby improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a cathode electrophoretic coating automated transmission line according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic structural diagram of another angle of a cathode electrophoretic coating automated transmission line according to an embodiment of the utility model;

[0019] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0020] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0021] Figure 5 It is a structural schematic diagram of a transmission component in a cathode electrophoretic coating automation transmission line according to an embodiment of the utility model;

[0022] Figure 6 It is a partial cross-sectional view of a cathode electrophoretic coating automated transmission line according to an embodiment of the utility model;

[0023] Figure 7 It is a cross-sectional view of a cathode electrophoretic tank in an automated transmission line for cathode electrophoretic coating according to an embodiment of the utility model.

[0024] In the figure:

[0025] 1. Bottom plate; 2. Placement rack; 3. Metal grab assembly; 301. Connecting plate; 302. Servo motor 1; 303. Rotating shaft; 304. Rotating plate; 305. Connecting block; 306. Electric telescopic rod; 307. Connecting plate; 308. Mechanical gripper; 4. Cathode electrophoresis tank; 5. Auxiliary assembly; 501. Knob; 502. Threaded rod; 503. Moving ring; 504. Pulley; 505. Connecting rod 1; 50 6. Connecting rod 2; 507. Filter; 508. Limiting plate; 509. Connecting rod; 6. Transmission assembly; 601. Support plate; 602. Servo motor 2; 603. Active roller; 604. Conveyor belt; 605. Driven roller; 7. Curing assembly; 701. Air compressor; 702. Inlet pipe; 703. Vortex tube; 704. Heat transfer pipe; 705. Cold transfer pipe; 706. Hot air hood; 707. Cold air hood. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] According to an embodiment of the utility model, a cathode electrophoretic coating automated transmission line is provided.

[0028] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 7 As shown, the cathode electrophoretic coating automated transmission line according to the embodiment of the utility model includes a base plate 1, a placement rack 2 is arranged at the top of the base plate 1, a metal grabbing component 3 is arranged at the top of the placement rack 2, a cathode electrophoretic tank 4 is arranged on one side of the metal grabbing component 3, an auxiliary component 5 is arranged inside the cathode electrophoretic tank 4, a transmission component 6 is arranged at one end of the placement rack 2, and a curing component 7 is arranged in the middle of the transmission component 6 and at the top of the base plate 1.

[0029] It needs to be explained that, in specific use, the cathode electrophoretic tank 4 is filled with cathode electrophoretic liquid, which contains positively charged resin particles. When electrophoretic coating is performed, the metal parts are used as cathodes. Under the action of the electric field, the resin particles in the cathode electrophoretic liquid move to the surface of the metal parts and deposit, forming a uniform coating.

[0030] Specifically, the principle of using cathode electrophoretic liquid to paint metal parts is mainly based on the electrophoresis phenomenon. Water-soluble resin, pigment, additives, etc. are mixed in a certain proportion to form cathode electrophoretic liquid. At the same time, the water-soluble resin carries a positive charge in the liquid. In the cathode electrophoretic tank 4, the metal parts to be painted are used as cathodes, and the plates made of insoluble materials are used as anodes. When direct current passes through the cathode electrophoretic tank 4, the positively charged resin particles will be attracted to the cathode (metal parts) and deposited on the surface of the metal parts to form a coating. After the resin particles are deposited, a uniform coating will be formed on the metal surface through electrochemical reactions. At the same time, since the metal parts are used as cathodes during the painting process, it is called cathode electrophoresis.

[0031] In one embodiment, for the above-mentioned metal grabbing assembly 3, the metal grabbing assembly 3 includes a connecting plate 301 installed on the top of the placement rack 2, a servo motor 302 is arranged at the top of the connecting plate 301, a rotating shaft 303 is arranged at the output shaft of the servo motor 302, a rotating plate 304 is arranged at the top of the rotating shaft 303, and two groups of electric telescopic rods 306 are arranged on one side of the rotating plate 304 through a connecting block 305; a connecting plate 307 is arranged at the bottom end of the two groups of electric telescopic rods 306, and two groups of mechanical grippers 308 are arranged at the top of the connecting plate 307 through a mounting hole, so that the metal parts can be grabbed, thereby greatly improving the overall efficiency of the production line. At the same time, grabbing the metal parts by the mechanical gripper 308 can reduce the physical contact with the coating, reduce the wear or damage of the coating during the transmission process, and thus maintain the integrity of the coating.

[0032] The working principle of the metal grabbing assembly 3 is as follows: when grabbing the metal part, the servo motor 302 is started through an external controller, and then the servo motor 302 drives the rotating shaft 303 and the rotating plate 304 to rotate. During the rotation, the metal part to be painted on one side is grabbed by the mechanical gripper 308, and after grabbing, the rotating plate 304 is driven to rotate by the servo motor 302. When it rotates to the top of the cathode electrophoresis tank 4, the servo motor 302 is stopped, and then the electric telescopic rod 306 is started to drive the connecting plate 307 to move downward, and then the mechanical gripper 308 that grabs the metal part moves toward the inside of the cathode electrophoresis tank 4 to paint the surface of the metal part. After the painting is completed, the connecting plate 307 is driven upward by the electric telescopic rod 306, and then the servo motor 302 is started to rotate the rotating plate 304 to the top of the transmission assembly 6 for subsequent operations.

[0033] In one embodiment, for the auxiliary component 5, the auxiliary component 5 includes a knob 501 installed on one side of the cathode electrophoresis tank 4, a threaded rod 502 is provided on one side of the knob 501 and penetrates the cathode electrophoresis tank 4, a movable ring 503 is sleeved on the outer side of the threaded rod 502, two sets of pulleys 504 are provided on the outer side of the movable ring 503 through a connecting rod 509, a connecting rod 1 505 is provided on the top of the pulley 504, a connecting rod 2 506 is provided on one side of the connecting rod 1 505, one end of the connecting rod 2 506 is connected to the inner bottom end of the cathode electrophoresis tank 4, and the other end of the connecting rod 2 506 is connected to the connecting rod 1 505. 05 is provided with a filter screen 507 at the top; the auxiliary component 5 also includes two sets of limit plates 508 installed inside the cathode electrophoresis tank 4, and one side of the pulley 504 and one side of the limit plate 508, so that the filter screen 507 can have a filtering and isolation effect, preventing impurities remaining on the metal surface from falling into the cathode electrophoresis tank 4, thereby isolating the impurities in the electrophoresis liquid inside the cathode electrophoresis tank 4, ensuring that the liquid in the cathode electrophoresis tank is purer, and the filter screen 507 is raised by the action of the knob 501 to facilitate the staff to remove impurities on its surface, thereby improving the convenience of operation.

[0034] The working principle of the auxiliary component 5 is as follows: when there are too many impurities remaining on the surface of the filter 507, the threaded rod 502 is rotated by the knob 501, and then the pulleys 504 on both sides of the movable ring 503 are driven to slide in the slide groove formed between the limit plate 508 and the cathode electrophoresis tank 4 under the rotation of the threaded rod 502. During the sliding process, the connecting rod 1 505 rises, thereby driving the connecting rod 2 506 to rise, and finally driving the filter 507 to rise to the top of the cathode electrophoresis tank 4 to facilitate the staff to clean the surface.

[0035] In one embodiment, for the above-mentioned transmission component 6, the transmission component 6 includes a plurality of groups of support plates 601 installed on the top of the base plate 1, wherein a servo motor 2 602 is provided on one side of one group of support plates 601, an active roller 603 is provided on the output shaft of the servo motor 2 602, a conveyor belt 604 is provided on the outer side of the active roller 603, and a driven roller 605 is provided on the other side of the conveyor belt 604, so that the painted metal parts can be transmitted, thereby ensuring the efficiency of the painting.

[0036] The working principle of the transmission component 6 is as follows: the servo motor 2 602 is started by an external controller, and then the active roller 603 is driven to rotate under the action of the servo motor 2 602, and the conveyor belt 604 on the outside is driven to rotate during the rotation process to realize the transportation of the top metal parts.

[0037] In one embodiment, for the above-mentioned curing component 7, the curing component 7 includes an air compressor 701 installed on the top of the base plate 1, an air inlet pipe 702 is arranged at the top of the air compressor 701, a vortex tube 703 is arranged at the top of the air inlet pipe 702, and a heat transfer pipe 704 and a cold transfer pipe 705 are respectively arranged on both sides of the vortex tube 703; one end of the heat transfer pipe 704 and the cold transfer pipe 705 are respectively connected to the hot air hood 706 and the cold air hood 707, and the hot air hood 706 and the cold air hood 707 are both installed on the top of the base plate 1, so that the electrophoretic coating on the surface of the metal parts can be dried and cooled by the hot air hood 706 and the cold air hood 707, thereby ensuring the adhesion and uniformity of the coating.

[0038] The working principle of the curing component 7 is as follows: when the painted parts are dried and cooled, the Maxwell demon principle is used to compress the gas to expand in the nozzle, and then enter the vortex tube 703 at a very high speed along the tangential direction. When the airflow rotates at a high speed in the vortex tube 703, it is transformed by the vortex tube 703 and separated into two parts of airflow with unequal total temperatures. The airflow temperature in the center is low, while the airflow temperature in the outer layer is high. By adjusting the ratio of cold and hot flows, the best cooling effect or heating effect can be obtained, and then the hot air is transported to the heat transfer pipe 704 and discharged to the outlet at the bottom of the hot air hood 706 for discharge, and the cold air is discharged through the outlet at the bottom of the cold air hood 707 in the cold transfer pipe 705. The hot air is used to heat and dry the painted parts metal at the bottom of the hot air hood 706, and the cold air is used to cool the dried parts metal at the bottom of the cold air hood 707.

[0039] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0040] In actual application, the staff will place the cleaned, degreased and phosphated metal parts to be painted on one side of the base plate 1, and then start the metal grabbing component 3 to grab them into the cathode electrophoretic tank 4 for painting. After the painting is completed, the metal grabbing component 3 is used to grab the metal parts and place them on the top of the transmission component 6, and the curing component 7 is used for drying and cooling to ensure the adhesion and uniformity of the coating, avoid subsequent scratches caused by the coating not being dried, and after curing, it is transmitted to the next process for the next step of processing.

[0041] After the cathode electrophoresis tank 4 has been used for a long time, impurities on the metal surface or left inside the electrophoresis liquid from the outside will fall to the top of the filter 507, and then the filter 507 will be lifted up by the auxiliary component 5 to facilitate the staff to remove the impurities on its surface, thereby ensuring that the liquid in the cathode electrophoresis tank 4 is purer and improving the convenience of operation.

[0042] In summary, with the help of the above technical solution of the utility model, the utility model has a simple structure and is easy to operate. It not only sets a transmission component 6 to enable the transmission of the painted metal parts, thereby ensuring the efficiency of the painting, but also sets a curing component 7 to dry and cool the electrophoretic coating on the surface of the metal parts through the hot air hood 706 and the cold air hood 707, thereby ensuring the adhesion and uniformity of the coating. The utility model sets a metal grabbing component 3 to enable the grabbing of metal parts, thereby greatly improving the overall efficiency of the production line. At the same time, grabbing the metal parts through the mechanical gripper 308 can reduce the physical contact with the coating, reduce the wear or damage of the coating during the transmission process, and thereby maintain the integrity of the coating. The utility model is provided with an auxiliary component 5, so that the filter net 507 can have a filtering and isolating effect, thereby preventing impurities remaining on the metal surface from falling into the cathode electrophoresis tank 4, thereby isolating the impurities in the electrophoresis liquid inside the cathode electrophoresis tank 4, ensuring that the liquid in the cathode electrophoresis tank is purer, and the filter net 507 is raised by the action of the knob 501, thereby facilitating the staff to remove impurities on its surface, thereby improving the convenience of operation.

[0043] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cathode electrophoretic coating automated transmission line, comprising a base plate (1), a placement rack (2) being arranged on the top of the base plate (1), characterized in that: A metal grabbing component (3) is arranged at the top of the placement rack (2), a cathode electrophoresis tank (4) is arranged on one side of the metal grabbing component (3), an auxiliary component (5) is arranged inside the cathode electrophoresis tank (4), a transmission component (6) is arranged at one end of the placement rack (2), and a curing component (7) is arranged in the middle of the transmission component (6) and at the top of the bottom plate (1).

2. The cathode electrophoretic coating automated transmission line according to claim 1, characterized in that: The metal grabbing assembly (3) comprises a connecting plate (301) mounted on the top of the placement rack (2); a servo motor (302) is arranged at the top of the connecting plate (301); a rotating shaft (303) is arranged on the output shaft of the servo motor (302); a rotating plate (304) is arranged at the top of the rotating shaft (303); and two groups of electric telescopic rods (306) are arranged on one side of the rotating plate (304) via a connecting block (305).

3. The cathode electrophoretic coating automated transmission line according to claim 2, characterized in that: The bottom ends of the two groups of electric telescopic rods (306) are provided with connecting plates (307), and the top ends of the connecting plates (307) are provided with two groups of mechanical grippers (308) through mounting holes.

4. The cathode electrophoretic coating automated transmission line according to claim 3, characterized in that: The auxiliary component (5) includes a knob (501) installed on one side of the cathode electrophoresis tank (4), a threaded rod (502) is provided on one side of the knob (501) and passes through the cathode electrophoresis tank (4), a movable ring (503) is sleeved on the outer side of the threaded rod (502), two sets of pulleys (504) are provided on the outer side of the movable ring (503) through a connecting rod (509), a connecting rod 1 (505) is provided at the top of the pulley (504), a connecting rod 2 (506) is provided on one side of the connecting rod 1 (505), one end of the connecting rod 2 (506) is connected to the inner bottom end of the cathode electrophoresis tank (4), and a filter net (507) is provided at the other end of the connecting rod 2 (506) and the top of the connecting rod 1 (505).

5. The cathode electrophoretic coating automated transmission line according to claim 4, characterized in that: The auxiliary component (5) also includes two sets of limiting plates (508) installed inside the cathode electrophoresis tank (4), and one side of the pulley (504) and one side of the limiting plates (508).

6. The cathode electrophoretic coating automated transmission line according to claim 5, characterized in that: The transmission component (6) comprises a plurality of groups of support plates (601) mounted on the top of the base plate (1), wherein one side of one group of the support plates (601) is provided with a servo motor 2 (602), an output shaft of the servo motor 2 (602) is provided with an active roller (603), a conveyor belt (604) is provided on the outer side of the active roller (603), and a driven roller (605) is provided on the other side of the conveyor belt (604).

7. The cathode electrophoretic coating automated transmission line according to claim 6, characterized in that: The curing assembly (7) comprises an air compressor (701) installed on the top of the base plate (1); an air inlet pipe (702) is arranged at the top of the air compressor (701); a vortex tube (703) is arranged at the top of the air inlet pipe (702); and a heat transfer pipe (704) and a cold transfer pipe (705) are respectively arranged on both sides of the vortex tube (703); One end of the heat transfer pipe (704) and the cold transfer pipe (705) are respectively connected to the hot air hood (706) and the cold air hood (707), and the hot air hood (706) and the cold air hood (707) are both installed on the top of the base plate (1).

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