Automobile hexagonal flange surface bolt electrophoretic paint spraying equipment

Abstract

The utility model relates to the technical field of automobile hexagonal flange face bolt processing, especially to an automobile hexagonal flange face bolt electrophoretic paint spraying equipment, including baseplate and vertical board, both sides of baseplate upper end all are fixedly connected with vertical board, the inner wall fixedly connected with the horizontal plate of vertical board, the lower extreme of horizontal plate is equipped with the anti -settling structure, the upper end fixedly connected with the box of baseplate, the inner wall mounting of box has heating block. Through the cooperation of electrophoretic spraying structure and box, the resin particle in the paint liquor is electrified negatively because of adsorption OH, moves to the shell in the electric field, discharges and deposits after the particle reaches the bolt surface, the initial deposition speed is fast, in the middle period, the resistance increases, the deposition speed slows down, forms the self -limiting film, the resin particle is uniformly deposited through the electric field drive, no matter the thread, the recess or the flange face of bolt, the film thickness difference will be very small, the anticorrosion consistency is improved obviously, avoids the phenomenon of the leakage of coating.

Description

Technical Field

[0001] This utility model relates to the field of automotive hexagonal flange bolt processing technology, specifically an electrophoretic paint spraying device for automotive hexagonal flange bolts. Background Technology

[0002] The automotive hexagonal flange bolt electrophoretic paint spraying equipment is a special equipment used for electrophoretic coating of automotive hexagonal flange bolts. Its main function is to uniformly coat the bolt surface with a layer of electrophoretic paint to achieve the effects of corrosion prevention, rust prevention and aesthetics.

[0003] For example, an electrophoretic paint spraying device for automotive hexagonal flange bolts, authorized by publication number "CN114086231A," utilizes an electric spray head, a miniature electric slide rail, an electric guide rail, a rotary motor, and a mounting bracket. This allows for free adjustment of the bolt's sprayed surface, ensuring uniform coating on every bolt surface and thus improving the overall coating quality. Traditional automotive hexagonal flange bolt spraying equipment is often affected by the spray gun angle and distance, resulting in uneven film thickness or even missed coating on complex areas such as bolt threads and flange surfaces. Utility Model Content

[0004] The purpose of this invention is to solve the problem of uneven film thickness and missed coating on bolts caused by the angle and distance of the spray gun, and to propose an electrophoretic paint spraying equipment for automotive hexagonal flange bolts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: Design an electrophoretic paint spraying device for automotive hexagonal flange bolts, including a base and vertical plates. Vertical plates are fixedly connected to both sides of the upper end of the base. Horizontal plates are fixedly connected to the inner walls of the vertical plates. The lower end of the horizontal plates is provided with an anti-settlement structure. A box is fixedly connected to the upper end of the base, and heating blocks are installed on the inner walls of the box.

[0006] The heating block in this configuration passes through the enclosure via a sealed coil and wires and is connected to an external battery and thermostat. The thermostat maintains the enclosure temperature at the required operating temperature.

[0007] Preferably, the anti-settlement structure includes multi-stage electric telescopic rods. The lower end of the horizontal plate is equipped with multi-stage electric telescopic rods. A block is fixedly connected to the output end of the multi-stage electric telescopic rods. Horizontal bars are fixedly connected to both sides of the block. The inner wall of the horizontal bar is slidably connected to the vertical bar. Both ends of the vertical bar are fixedly connected to the vertical plate.

[0008] This multi-stage electric telescopic pole features a self-locking characteristic.

[0009] Preferably, the outer wall of the crossbar is provided with an electrophoretic spraying structure.

[0010] Preferably, the electrophoretic spraying structure includes a power supply, the lower end of the crossbar is equipped with a power supply, the positive terminal of the power supply is connected to a first wire, the end of the first wire is connected to the housing, the negative terminal of the power supply is connected to a second wire, the end of the second wire is connected to a cathode plate, and the lower end of the cathode plate is fixedly connected to the housing.

[0011] This setting uses direct current (DC) power.

[0012] Preferably, threaded blocks are fixedly connected to both ends of the housing.

[0013] Preferably, the inner wall of the threaded block is connected to the square block by bolts.

[0014] Preferably, a sliding door is installed at the lower end of the housing.

[0015] The present invention proposes an electrophoretic paint spraying device for automotive hexagonal flange bolts. The beneficial effects are as follows: through the combination of the electrophoretic spraying structure and the housing, the resin particles in the paint liquid become negatively charged due to the adsorption of OH radicals and move towards the housing in the electric field. After the particles reach the bolt surface, they are deposited by discharge. The initial deposition rate is fast, but in the middle stage, the resistance increases and the deposition rate slows down, forming a self-limiting film. The resin particles are uniformly deposited by driving the electric field, and the film thickness difference is very small regardless of whether the bolt thread, groove or flange surface is used. The corrosion protection consistency is significantly improved, and the phenomenon of missed coating is avoided. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Front sectional view Figure 3 This is a front sectional view of the shell; Figure 4 for Figure 3 Enlarged view of section B; Figure 5 for Figure 2 Enlarged view of section A; Figure 6 This is a front sectional view of the box.

[0017] In the diagram: 1. Base, 2. Vertical plate, 3. Horizontal plate, 4. Anti-settlement structure, 401. Multi-stage electric telescopic rod, 402. Block, 403. Horizontal bar, 404. Vertical bar, 5. Electrophoretic spraying structure, 501. Power supply, 502. First wire, 503. Housing, 504. Second wire, 505. Cathode plate, 6. Threaded block, 7. Box body, 8. Heating block, 9. Sliding door. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings: See attached document Figure 1-6 In this embodiment, an electrophoretic paint spraying device for automotive hexagonal flange bolts includes a base 1 and a vertical plate 2. The vertical plate 2 is fixedly connected to both sides of the upper end of the base 1. A horizontal plate 3 is fixedly connected to the inner wall of the vertical plate 2. An anti-settlement structure 4 is provided at the lower end of the horizontal plate 3. A box body 7 is fixedly connected to the upper end of the base 1. Heating blocks 8 are installed on the inner wall of the housing 7. Heating blocks 8 pass through the housing 7 via sealing coils and wires and are connected to the external battery and thermostat. The thermostat ensures that the temperature of the housing 7 reaches the required working temperature. The outer wall of the crossbar 403 is provided with an electrophoretic spraying structure 5. Threaded blocks 6 are fixedly connected to both ends of the housing 503. The inner wall of the threaded blocks 6 is threadedly connected to the block 402 by bolts. The housing 503 is installed on the block 402 by bolts. A sliding door 9 is installed at the lower end of the housing 503.

[0019] See attached document Figure 1 , Figure 2 and Figure 5 The anti-settlement structure 4 includes a multi-stage electric telescopic rod 401. The lower end of the horizontal plate 3 is equipped with the multi-stage electric telescopic rod 401, which is selected to have self-locking characteristics. The output end of the multi-stage electric telescopic rod 401 is fixedly connected to a block 402. Both sides of the block 402 are fixedly connected to a horizontal bar 403. The inner wall of the horizontal bar 403 is slidably connected to the vertical bar 404. The horizontal bar 403 slides on the vertical bar 404, and the vertical bar 404 limits the horizontal bar 403. Both ends of the vertical bar 404 are fixedly connected to the vertical plate 2.

[0020] See attached document Figure 1-4 The electrophoretic spraying structure 5 includes a power supply 501. The lower end of the crossbar 403 is equipped with the power supply 501. The positive terminal of the power supply 501 is connected to the first wire 502. The end of the first wire 502 is connected to the housing 503. The negative terminal of the power supply 501 is connected to the second wire 504. The end of the second wire 504 is connected to the cathode plate 505. The lower end of the cathode plate 505 is fixedly connected to the box body 7.

[0021] Working principle: When using automotive hexagonal flange bolt electrophoretic paint spraying equipment: Bolt loading: Open the sliding door 9, insert the bolts of the automotive hexagonal flange face to be painted into the housing 503, and close the sliding door 9.

[0022] Adding paint: Paint for automotive hexagonal flange bolts is added into the housing 7. The paint consists of film-forming resins, the core of the paint, such as epoxy resin and acrylic resin. These resins are deposited in an electric field after being ionized and charged, determining the paint film's key properties such as corrosion resistance and adhesion. Pigments include anti-rust pigments (such as zinc powder and zinc phosphate) and coloring pigments (such as iron oxide red and carbon black). The former provides anti-corrosion properties, while the latter imparts color to the paint film. Solvents commonly used include butanol and diethylene glycol butyl ether, which adjust the paint viscosity to ensure uniform resin dispersion. To improve film-forming leveling properties; neutralizing agents, such as ammonia (commonly used in anodic electrophoresis and formic acid (commonly used in cathodic electrophoresis), are used to adjust the pH value of the paint solution, so that the resin is ionized and charged (anodic paint is negatively charged, cathodic paint is positively charged); additives include defoamers (to prevent foaming), leveling agents (to improve surface smoothness), and preservatives (to prevent paint deterioration), which enhance the coating effect and paint stability; water, as a solvent carrier, requires deionized water, accounting for 60%-70% of the total paint solution, and controls the paint concentration and conductivity, among other components.

[0023] Electrophoretic spraying: When the multi-stage electric telescopic rod 401 is activated, it has a self-locking feature. The movement of the output end of the multi-stage electric telescopic rod 401 moves the block 402 (e.g., Figure 2 The movement of block 402 causes the horizontal bar 403 to slide on the vertical bar 404. The vertical bar 404 provides sliding support for the horizontal bar 403 and causes the horizontal bar 403 to move linearly. The movement of block 402 causes the housing 503 to move into the box 7 until the housing 503 is completely submerged in the paint liquid. The multi-stage electric telescopic rod 401 is then closed. It is further explained that the heating block 8 adjusts the temperature of the paint liquid in the box 7 to 28-32℃ through the temperature controller. The positive terminal of power supply 501 is connected to housing 503 via the first wire 502, and the negative terminal is connected to cathode plate 505 via the second wire 504, thus forming a DC electric field. Power supply 501 is an adjustable DC power supply (0-150V / 0-200A). The voltage is adjusted according to the bolt specifications. Resin particles in the paint liquid become negatively charged due to adsorption of OH groups and move towards housing 503 (anode) in the electric field. After the particles reach the bolt surface, they discharge and deposit. The initial deposition rate is fast, but in the middle stage, the resistance increases and the deposition rate slows down, forming a self-limiting film (avoiding excessive film thickness and cracking), thereby achieving the purpose of electrophoretic spraying. Power supply 501 is turned off, and housing 503 is reset via multi-stage electric telescopic rod 401. All power supplies are turned off, and housing 503 is removed using the bolts of threaded block 6 and square block 402, making it easy for operators to remove the sprayed bolts. After the bolts are removed, housing 503 is reset, thus completing the workflow of the automotive hexagonal flange bolt electrophoretic paint spraying equipment.

[0024] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. An electrophoretic paint spraying device for automotive hexagonal flange bolts, comprising a base (1) and vertical plates (2), wherein vertical plates (2) are fixedly connected to both sides of the upper end of the base (1), characterized in that: A horizontal plate (3) is fixedly connected to the inner wall of the vertical plate (2). The lower end of the horizontal plate (3) is provided with an anti-settlement structure (4). A box (7) is fixedly connected to the upper end of the base (1). A heating block (8) is installed on the inner wall of the box (7).

2. The automotive hexagonal flange bolt electrophoretic paint spraying equipment according to claim 1, characterized in that: The anti-settlement structure (4) includes a multi-stage electric telescopic rod (401). The lower end of the horizontal plate (3) is equipped with the multi-stage electric telescopic rod (401). The output end of the multi-stage electric telescopic rod (401) is fixedly connected to a block (402). Both sides of the block (402) are fixedly connected to a horizontal bar (403). The inner wall of the horizontal bar (403) is slidably connected to the vertical bar (404). Both ends of the vertical bar (404) are fixedly connected to the vertical plate (2).

3. The automotive hexagonal flange bolt electrophoretic paint spraying equipment according to claim 2, characterized in that: The outer wall of the crossbar (403) is provided with an electrophoretic spraying structure (5).

4. The automotive hexagonal flange bolt electrophoretic paint spraying equipment according to claim 3, characterized in that: The electrophoretic spraying structure (5) includes a power supply (501). The lower end of the crossbar (403) is equipped with the power supply (501). The positive terminal of the power supply (501) is connected to the first wire (502). The end of the first wire (502) is connected to the housing (503). The negative terminal of the power supply (501) is connected to the second wire (504). The end of the second wire (504) is connected to the cathode plate (505). The lower end of the cathode plate (505) is fixedly connected to the box body (7).

5. The automotive hexagonal flange bolt electrophoretic paint spraying equipment according to claim 4, characterized in that: Both ends of the housing (503) are fixedly connected with threaded blocks (6).

6. The automotive hexagonal flange bolt electrophoretic paint spraying equipment according to claim 5, characterized in that: The inner wall of the threaded block (6) is threadedly connected to the square block (402) by bolts.

7. The automotive hexagonal flange bolt electrophoretic paint spraying equipment according to claim 4, characterized in that: A sliding door (9) is installed at the lower end of the housing (503).

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