Electrophoretic coating equipment for surface of metal product

Abstract

The utility model relates to metal product surface electrophoretic coating equipment which comprises a base, an electrophoresis tank is fixed on the base, a blocking component is arranged on the electrophoresis tank, an anti-precipitation mechanism is arranged on the electrophoresis tank, and the anti-precipitation mechanism comprises a first rotating shaft and a second rotating shaft. According to the electrophoretic coating equipment for the surface of the metal product, the anti-precipitation mechanism is arranged, and after liquid in the electrophoresis tank is used for a period of time, particles precipitated at the bottom of the electrophoresis tank can be stirred and blown through the anti-precipitation mechanism, so that particles of electrophoretic paint are prevented from precipitating at the bottom of the electrophoresis tank, and the anti-precipitation performance is improved; when a workpiece needs to be placed in the electrophoresis tank, the liquid level in the electrophoresis tank rises, at the moment, the protection frame is pulled through the blocking assembly till the protection frame is located above the height after the liquid level rises, and when the workpiece is placed relative to the electrophoresis tank, the protection frame and the protection cover conduct auxiliary limiting on coating liquid, close to the inner wall, in the electrophoresis tank; and the liquid is prevented from splashing out of the electrophoresis tank.

Description

Technical Field

[0001] The utility model relates to the technical field of electrophoretic coating, in particular to electrophoretic coating equipment for the surface of metal products. Background Art

[0002] Electrophoretic coating is a coating method that uses an external electric field to direct the migration of particles such as pigments and resins suspended in the electrophoretic liquid and deposit them on the surface of a substrate at one of the electrodes.

[0003] When using an electrophoretic tank to process workpieces, the workpieces are placed inside the tank for coating. Most of the existing electrophoretic tank equipment currently lacks an anti-sedimentation device, which causes the particulate matter in the electrophoretic tank equipment to easily precipitate, thereby affecting the quality of the electrophoretic liquid, and further causing the electrophoresis effect of the electrophoretic tank equipment to be poor. When the workpiece is placed inside the tank, the liquid level of the coating liquid in the tank will rise, and under the impact of the workpiece, the coating liquid attached to the inner wall of the tank is prone to splashing. In view of this, a metal product surface electrophoretic coating equipment is proposed to solve the above problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a metal product surface electrophoretic coating device, which solves the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal product surface electrophoretic coating device, comprising a base, an electrophoretic tank is fixed on the base, a blocking component is provided on the electrophoretic tank, and an anti-precipitation mechanism is provided on the electrophoretic tank;

[0006] The anti-precipitation mechanism includes a first rotating shaft and a second rotating shaft. The first rotating shaft and two second rotating shafts are rotatably installed in the electrophoresis tank. Rotary joints are rotatably installed at the lower ends of the first rotating shaft and the second rotating shaft. The three rotary joints are connected by connecting pipes. A blower is fixed on the base. An air intake pipe is fixed at one end of the blower. One end of the air intake pipe is connected to one of the rotary joints.

[0007] Furthermore, the two second rotating shafts are distributed on both sides of the first rotating shaft, two driving rotating wheels are fixed on the first rotating shaft, and the two driving rotating wheels are distributed up and down, and a driven rotating wheel is fixed on the second rotating shaft.

[0008] Furthermore, a second belt is transmitted between the upper driving wheel and the left driven wheel, a first belt is transmitted between the lower driving wheel and the right driven wheel, and a plurality of stirring rods are fixed on the first rotating shaft and the second rotating shaft;

[0009] The first rotating shaft, the second rotating shaft and the stirring rod are all hollow, and a plurality of air outlet holes are provided on the first rotating shaft, the second rotating shaft and the stirring rod.

[0010] Furthermore, a driven bevel gear is fixed on the first rotating shaft, an external motor is fixed on the base, and an active bevel gear meshing with the driven bevel gear is fixed on the output end of the external motor.

[0011] Furthermore, the blocking assembly includes a fixed box and a protective frame, two fixed boxes are fixed on the base, a built-in motor is fixed in the fixed box, a threaded rod is fixed at the output end of the built-in motor, and a threaded sleeve is threadedly connected to the threaded rod;

[0012] A protective frame which can move up and down is slidably installed in the electrophoresis tank, a protective cover is fixed on the upper end of the protective frame, and an L-shaped rod is fixed on one side of the threaded sleeve.

[0013] Furthermore, the lower end of the L-shaped rod is fixed to the upper end of the protective cover, and a sliding groove that slidably cooperates with the protective cover is provided on the inner side of the electrophoresis tank.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The electrophoretic coating equipment for metal products is provided with an anti-sedimentation mechanism. After the liquid in the electrophoretic tank has been used for a period of time, the anti-sedimentation mechanism can be used to stir and blow the particles precipitated at the bottom of the electrophoretic tank to prevent the electrophoretic coating particles from settling at the bottom of the electrophoretic tank, thereby improving the anti-sedimentation performance.

[0016] 2. The electrophoretic coating equipment for metal products is provided with a blocking component. When the workpiece needs to be placed in the electrophoretic tank, the liquid level in the electrophoretic tank rises. At this time, the blocking component pulls the protective frame until the protective frame is located above the height after the liquid level rises. When the workpiece is placed relative to the electrophoretic tank, the protective frame and the protective cover assist in limiting the coating liquid near the inner wall of the electrophoretic tank to prevent the liquid from splashing out of the electrophoretic tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the L-shaped rod and the protective frame of the utility model.

[0020] In the figure: 1 base, 2 electrophoresis tank, 3 blocking assembly, 301 fixed box, 302 threaded rod, 303 threaded sleeve, 304 L-shaped rod, 305 protective cover, 306 protective frame, 4 anti-precipitation mechanism, 401 first rotating shaft, 402 second rotating shaft, 403 driving rotor, 404 driven rotor, 405 first belt, 406 second belt, 407 driven bevel gear, 408 driving bevel gear, 409 rotary joint, 410 connecting pipe, 411 air inlet pipe, 412 blower, 413 stirring rod. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-2 In this embodiment, a metal product surface electrophoretic coating device includes a base 1, an electrophoretic tank 2 is fixed on the base 1, a blocking component 3 is provided on the electrophoretic tank 2, and an anti-precipitation mechanism 4 is provided on the electrophoretic tank 2.

[0023] The anti-precipitation mechanism 4 includes a first rotating shaft 401 and a second rotating shaft 402. The first rotating shaft 401 and two second rotating shafts 402 are rotatably installed in the electrophoresis tank 2. The two second rotating shafts 402 are distributed on both sides of the first rotating shaft 401. Two active rotating wheels 403 are fixed on the first rotating shaft 401. The two active rotating wheels 403 are distributed up and down. A driven rotating wheel 404 is fixed on the second rotating shaft 402. A second belt 406 is transmitted between the upper active rotating wheel 403 and the left driven rotating wheel 404. A first belt 405 is transmitted between the lower active rotating wheel 403 and the right driven rotating wheel 404. A plurality of stirring rods 413 are fixed on the first rotating shaft 401 and the second rotating shaft 402 to fully stir the electrophoretic coating to avoid precipitation.

[0024] A rotary joint 409 is rotatably installed at the lower end of the first rotating shaft 401 and the second rotating shaft 402. The three rotary joints 409 are connected by connecting pipes 410. A blower 412 is fixed on the base 1. An air intake pipe 411 is fixed at one end of the blower 412. One end of the air intake pipe 411 is connected to one of the rotary joints 409. A solenoid valve is fixed on the air intake pipe 411. The solenoid valve can control the air intake pipe 411 to be closed or opened to prevent liquid from flowing back into the air intake pipe 411 and then flowing into the blower 412 to damage the equipment.

[0025] The device starts an external motor, which drives the active bevel gear 408 to rotate, and then the active bevel gear 408 engages with the driven bevel gear 407, so that the first rotating shaft 401 rotates, and then the second belt 406 is transmitted between the upper active rotating wheel 403 and the left driven rotating wheel 404, and the first belt 405 is transmitted between the lower active rotating wheel 403 and the right driven rotating wheel 404, so that the first rotating shafts 401 on both sides rotate at the same time, and the stirring rods 413 on the first rotating shaft 401 and the second rotating shaft 402 rotate at the same time, so as to stir the bottom of the electrophoresis tank 2.

[0026] At this time, the blower 412 is started to transport the gas to the three rotary joints 409, and then to the first rotating shaft 401, the second rotating shaft 402 and the stirring rod 413, and then ejected through the air outlet to pressurize the sediment near the bottom of the electrophoresis tank 2, so that the sediment is not easy to accumulate.

[0027] Among them, the first rotating shaft 401, the second rotating shaft 402 and the stirring rod 413 are all hollow, and multiple air outlet holes are opened on the first rotating shaft 401, the second rotating shaft 402 and the stirring rod 413, so that the gas can be transported to the first rotating shaft 401, the second rotating shaft 402 and the stirring rod 413, and then sprayed out from the air outlet to blow the sediment near the bottom of the electrophoresis tank 2.

[0028] Please refer to the figure, the blocking component 3 in this embodiment includes a fixed box 301 and a protective frame 306. Two fixed boxes 301 are fixed on the base 1, and the two fixed boxes are distributed on both sides of the electrophoresis tank 2, so that the L-shaped rod 304 can evenly drive the protective cover 305 to rise or fall. A built-in motor is fixed in the fixed box 301, and a threaded rod 302 is fixed at the output end of the built-in motor. A screw thread sleeve 303 is threadedly connected to the threaded rod 302. The screw thread sleeve 303 is square, which limits the rotation tendency of the screw thread sleeve 303 and makes it move horizontally.

[0029] A protective frame 306 that can move up and down is slidably installed in the electrophoresis tank 2 . A protective cover 305 is fixed to the upper end of the protective frame 306 . The cross section of the protective cover 305 is inclined. An L-shaped rod 304 is fixed to one side of the screw thread sleeve 303 .

[0030] When the workpiece of the device is placed in the electrophoresis tank 2, the liquid in the electrophoresis tank 2 rises, and the built-in motor is started, which drives the threaded rod 302 to rotate, and the threaded rod 302 drives the threaded sleeve 303 to rise and then drives the protective cover 305 to rise, so that the protective frame 306 and the protective cover 305 assist in limiting the coating liquid near the inner wall of the electrophoresis tank 2.

[0031] The lower end of the L-shaped rod 304 is fixed to the upper end of the protective cover 305 , and a sliding groove is provided inside the electrophoresis tank 2 to slide with the protective cover 305 , thereby increasing the stability of the protective cover 305 when it is raised or lowered.

[0032] The working principle of the above embodiment is:

[0033] In order to prevent the electrophoretic paint from settling in the electrophoretic tank 2, the external motor can be started to drive the active bevel gear 408 to rotate, and then the active bevel gear 408 engages with the driven bevel gear 407, so that the first rotating shaft 401 rotates, and then the second belt 406 is transmitted between the upper active rotating wheel 403 and the left driven rotating wheel 404, and the first belt 405 is transmitted between the lower active rotating wheel 403 and the right driven rotating wheel 404, so that the first rotating shafts 401 on both sides rotate at the same time, and the stirring rods 413 on the first rotating shaft 401 and the second rotating shaft 402 rotate at the same time, so as to stir the bottom of the electrophoretic tank 2.

[0034] Then, by starting the blower 412, the blower 412 delivers the gas to the air inlet pipe 411, and the gas in the air inlet pipe 411 is delivered to the three rotary joints 409, transmitted to the first rotating shaft 401, the second rotating shaft 402 and the stirring rod 413, and then ejected through the air outlet to pressurize the sediment near the bottom of the electrophoresis tank 2. When the stirring rod 413 on the first rotating shaft 401 and the second rotating shaft 402 rotate simultaneously, the sediment is not easy to accumulate.

[0035] When the workpiece needs to be painted, the height of the liquid level inside the electrophoretic tank 2 after the workpiece is placed is calculated based on the height of the liquid level inside the electrophoretic tank 2 and the volume of the workpiece. At this time, the built-in motor is started, and the built-in motor drives the threaded rod 302 to rotate. The threaded rod 302 drives the threaded sleeve 303 to rise and then drives the protective cover 305 to rise, so that the protective frame 306 and the protective cover 305 assist in limiting the coating liquid near the inner wall of the electrophoretic tank 2, thereby intercepting and blocking the flow and avoiding splashing of the coating liquid on the inner wall of the tank.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal product surface electrophoretic coating device, comprising a base (1), characterized in that: An electrophoresis tank (2) is fixed on the base (1), a blocking component (3) is provided on the electrophoresis tank (2), and an anti-precipitation mechanism (4) is provided on the electrophoresis tank (2); The anti-precipitation mechanism (4) comprises a first rotating shaft (401) and a second rotating shaft (402). The first rotating shaft (401) and two second rotating shafts (402) are rotatably mounted in the electrophoresis tank (2). Rotary joints (409) are rotatably mounted at the lower ends of the first rotating shaft (401) and the second rotating shaft (402). The three rotary joints (409) are connected to each other via a connecting pipe (410). A blower (412) is fixed on the base (1). An air intake pipe (411) is fixed at one end of the blower (412). One end of the air intake pipe (411) is connected to one of the rotary joints (409).

2. The electrophoretic coating equipment for metal product surface according to claim 1, characterized in that: The two second rotating shafts (402) are distributed on both sides of the first rotating shaft (401), two driving rotating wheels (403) are fixed on the first rotating shaft (401), and the two driving rotating wheels (403) are distributed up and down, and a driven rotating wheel (404) is fixed on the second rotating shaft (402).

3. The electrophoretic coating equipment for metal product surface according to claim 2, characterized in that: A second belt (406) is transmitted between the upper driving rotating wheel (403) and the left driven rotating wheel (404), a first belt (405) is transmitted between the lower driving rotating wheel (403) and the right driven rotating wheel (404), and a plurality of stirring rods (413) are fixed on both the first rotating shaft (401) and the second rotating shaft (402); The first rotating shaft (401), the second rotating shaft (402) and the stirring rod (413) are all hollow, and a plurality of air outlet holes are provided on the first rotating shaft (401), the second rotating shaft (402) and the stirring rod (413).

4. The electrophoretic coating equipment for metal product surface according to claim 3, characterized in that: A driven bevel gear (407) is fixed on the first rotating shaft (401), an external motor is fixed on the base (1), and a driving bevel gear (408) meshing with the driven bevel gear (407) is fixed on the output end of the external motor.

5. The electrophoretic coating equipment for metal product surface according to claim 1, characterized in that: The blocking assembly (3) comprises a fixing box (301) and a protection frame (306), the two fixing boxes (301) are fixed on the base (1), a built-in motor is fixed in the fixing box (301), a threaded rod (302) is fixed at the output end of the built-in motor, and a threaded sleeve (303) is threadedly connected to the threaded rod (302); A protective frame (306) that can move up and down is slidably installed in the electrophoresis tank (2), a protective cover (305) is fixed to the upper end of the protective frame (306), and an L-shaped rod (304) is fixed to one side of the screw thread sleeve (303).

6. The electrophoretic coating equipment for metal product surface according to claim 5, characterized in that: The lower end of the L-shaped rod (304) is fixed to the upper end of the protective cover (305), and a sliding groove that slidably cooperates with the protective cover (305) is provided on the inner side of the electrophoresis tank (2).

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