A new type of electrophoresis hanger

Abstract

A novel electrophoresis hanger includes a hanging rod with a hook at its upper end and multiple mounting holes spaced along its length at the lower part of the rod. A set of horizontal hanging plates can be detachably installed at each mounting hole. Each horizontal hanging plate includes a mounting part with support parts at both ends. Each support part has a hook-on part at its outer end. A car sleeve passes through the hook-on part and is hung on it. The upper surface of the hook-on part has serrations along its length, which contact the inner wall of the transverse through-hole of the car sleeve. This novel electrophoresis hanger eliminates the need for a painting process, significantly improving efficiency and reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for automobile sleeve production, and in particular to a new type of electrophoresis hanger. Background Technology

[0002] Patent application number "201821533135.4", entitled "A Sleeve Product Hanger for Saving Electrophoretic Coating", was filed by our company in 2018. This device is used to hang automotive sleeves during electrophoretic painting. The hanger is divided into a hanging rod, a support rod, and a sleeve rod. This allows for subsequent repainting only of the sleeve rod, eliminating the need to repaint the entire hanger, thus saving steps. Furthermore, if the sleeve rod becomes unusable due to excessive repainting, only the sleeve rod needs to be replaced, saving materials. However, this device still requires a repainting process (surface paint removal in a sandblasting machine). This repainting process necessitates additional repainting equipment and operators, thereby increasing equipment and labor costs. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a new type of electrophoretic paint hanger, which can be used directly after electrophoretic painting with the car sleeve without polishing, which not only greatly saves efficiency, but also reduces costs.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A novel electrophoresis apparatus includes a hanging rod with a hook at the upper end and multiple mounting holes spaced apart along the length of the lower part of the hanging rod. A set of horizontal hanging plates can be detachably installed at each mounting hole.

[0006] The horizontal mounting plate includes an installation part, with support parts at both ends of the installation part. Each support part has a hook part at its outer end. The car sleeve passes through the hook part and is hung on the hook part. The upper end face of the hook part has serrations along its length, and the serrations contact the inner wall of the transverse through hole of the car sleeve.

[0007] The mounting part is inclined upward and its width is smaller than the horizontal through hole of the car sleeve.

[0008] The width of the hook part is smaller than the width of the support part, and the hook part and the support part have a smooth transition at the lower end and form a shoulder at the upper end.

[0009] The mounting section is provided with through holes, and bolts are used to fix the horizontal hanging plate after passing through the through holes and the mounting holes on the hanging rod.

[0010] The hanging rod is plate-shaped, with two horizontal hanging plates corresponding to each mounting hole. The two horizontal hanging plates are located on the front and back surfaces of the hanging rod, respectively.

[0011] The support portion of each horizontal mounting plate folds outward relative to the mounting portion; the support portion and the mounting portion of each horizontal mounting plate are on the same plane.

[0012] The hanging rods, hooks, and horizontal hanging plates are all made of conductive metal.

[0013] This utility model provides a novel electrophoresis apparatus, which has the following technical advantages:

[0014] 1) Traditionally, support rods with cylindrical or sleeved structures are electroplated with insulating varnish during electroplating. This necessitates polishing the hanger itself or only the sleeve (to remove the insulating varnish) before attaching the car sleeve for proper electroplating. This application improves the hanger's support rod by replacing the cylindrical shape with a metal plate. The outer end of the metal plate is cut into a connecting part with serrations. Although the serrations are also coated with insulating varnish during electroplating, there is constant slight relative movement between the serrations and the car sleeve during operation. Therefore, the varnish at the serration tips is worn away, maintaining electrical conductivity with the car sleeve. This eliminates the need for polishing. This device has been applied in actual production. After eliminating the polishing process, the number of products produced per unit time is increased, and the production capacity is increased by approximately three times.

[0015] 2) Actual production application has shown that the principle of this device is completely feasible. It eliminates the need for several sandblasting machines (for paint removal), saves labor costs, and also saves the cost of continuously purchasing grinding balls for sandblasting equipment.

[0016] 3) The original hangers used a welding process, with only one crossbar welded at each point; this device can install two crossbars at each point, thus doubling the number of car sleeves that can be hung, improving production efficiency; and this device uses bolts to install the crossbars, allowing for quick replacement if the crossbars deform. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is the front view of the present invention.

[0020] Figure 3 This is the left view of the present invention.

[0021] Figure 4 This is the front view of the horizontal hanging plate in this utility model.

[0022] Figure 5This is a simplified schematic diagram of the present invention and its application to a car sleeve mounting.

[0023] Figure 6 for Figure 1 A magnified view of a portion of point A in the middle.

[0024] In the diagram: 1. Hanging rod; 2. Hook; 3. Horizontal hanging plate; 4. Car sleeve; 3.1. Mounting part; 3.2. Through hole; 3.3. Support part; 3.4. Hanging part; 3.5. Serration. Detailed Implementation

[0025] like Figure 1-4 As shown, a novel electrophoresis apparatus includes a hanging rod 1, with a hook 2 fixed at the upper end of the hanging rod 1, and multiple mounting holes spaced apart along the length of the lower part of the hanging rod 1, with a set of horizontal hanging plates 3 detachably installed at each mounting hole.

[0026] The horizontal mounting plate 3 includes a mounting part 3.1, with a through hole 3.2 at its center. Bolts pass through the through hole 3.2 and the mounting hole on the hanging rod 1 for detachable connection. The left and right ends of the mounting part 3.1 are folded away from the hanging rod 1 to form support parts 3.3. The support part 3.3 is wider on the side closer to the mounting part 3.1 and narrower on the side farther from it. A piece is cut off from the top of the outermost end of the support part 3.3 to form a hook part 3.4. The width of the hook part 3.4 is smaller than the diameter of the center hole of the car sleeve. The upper surface of the hook part 3.4 has serrations 3.5 along its length, which contact the inner wall of the car sleeve. The root height of the toothed rack 3.5 is 0.5mm.

[0027] Preferably, the hanging rod 1 is plate-shaped, which facilitates installation and ensures strength.

[0028] Preferably, there are two horizontal hanging plates 3 at each mounting hole on the hanging rod 1, and the two horizontal hanging plates 3 are located on the front and rear end faces of the hanging rod 1 and are arranged in a mirror symmetrical manner.

[0029] Working principle and process:

[0030] 1) Before electrophoretic painting, the through hole of the car sleeve 4 (made of steel) is inserted horizontally into the hook part 3.4. Since the hook part 3.4 is tilted upward, the car sleeve 4 can be hung on the horizontal mounting plate 3 under the action of gravity and remain stable without falling off.

[0031] 2) The hanging rod 1, on which multiple sets of car sleeves 4 are hung, is attached to the conveying device via hook 2. The conveying device slowly feeds the car sleeves 4 and the hanging device into the electrophoretic paint bath simultaneously. The lower part of the hanging rod 1 (the part with the car sleeves 4) extends into the electrophoretic paint liquid, while the upper part of the hanging rod 1 extends out of the electrophoretic paint liquid surface and is connected to the electrode. Current passes through the hanging rod 1 and the horizontal hanging plate 3 and reaches the car sleeves, thereby enabling the car sleeves and the lower part of the hanging rod 1 to conduct electricity and be electrophoretically coated.

[0032] 3) Although the cross-mount plate 3 is also painted, it has a mounting part 3.4 at its end. This mounting part 3.4 is plate-shaped and has serrations 3.5. As the car sleeve 4 moves forward with the conveyor, there is a slight wobbling or oscillation between the car sleeve 4 and the mounting part 3.4, meaning there is friction between the serrations 3.5 and the inner hole of the car sleeve 4. Because the surface curvature of the car sleeve 4 is gentle, the electrophoretic paint film has strong adhesion after curing. However, the ends of the serrations 3.5 are sharp. During electrophoresis, the current will naturally concentrate at the sharp serration tips, resulting in excessively thick paint film deposition in this area. The excessively thick paint film has greater internal stress, is more brittle, and has relatively poor adhesion. When the two move and rub against each other, the hard and smooth metal surface of the car sleeve continuously scrapes against the fragile paint film adhering to the tips of the serrations 3.5. This wears away the paint on the tips of the serrations 3.5. The metal surface (or thin conversion film) of the car sleeve is very hard and wear-resistant, and therefore not easily worn. Even though the tip of the serration 3.5 has no insulating varnish, it can still be connected to the automotive sleeve 4 to achieve electrical conductivity.

[0033] 4) When the hanger is used to hang the car sleeve 4 to be painted and is placed into the electrophoretic paint bath, the upper part of the hanging rod 1 (which is never in contact with the electroplating solution and has no insulating paint) extends out of the electrophoretic paint solution and connects to the electrode. The current passes through the upper part of the hanging rod 1 and the horizontal hanging plate 3 to the saw teeth 3.5. The tip of the saw teeth 3.5 contacts the car sleeve 4, making the car sleeve 4 conductive, thus achieving electroplating again. During this process, the paint plated on the saw teeth 3.5 is automatically ground off again, making it convenient for continuous use next time.

Claims

1. A novel electrophoretic hanger characterized by: Includes a hanging rod (1), with a hook (2) at the upper end of the hanging rod (1), and multiple mounting holes spaced apart along the length of the lower part of the hanging rod (1), with a set of horizontal hanging plates (3) detachably installed at each mounting hole; The horizontal mounting plate (3) includes an installation part (3.1), and the installation part (3.1) is provided with support parts (3.3) at both ends. Each support part (3.3) is provided with a hook part (3.4) at its outer end. The car sleeve (4) passes through the hook part (3.4) and is hung on the hook part (3.4). The upper end face of the hook part (3.4) is provided with serrations (3.5) along the length direction. The serrations (3.5) contact the inner wall of the transverse through hole of the car sleeve (4).

2. A novel electrophoresis hanger according to claim 1, characterized in that: The hook part (3.4) is inclined upward and its width is smaller than the transverse through hole of the car sleeve (4).

3. A novel electrophoresis hanger according to claim 2, characterized in that: The width of the hook part (3.4) is smaller than the width of the support part (3.3), and the hook part (3.4) and the support part (3.3) have a smooth transition at the lower end and form a shoulder at the upper end.

4. A novel electrophoresis hanger according to claim 3, characterized in that: The mounting part (3.1) is provided with a through hole (3.2). After the bolt passes through the through hole (3.2) and the mounting hole on the hanging rod (1), the horizontal hanging plate (3) is fixed.

5. A novel electrophoresis hanger according to claim 4, characterized in that: The hanging rod (1) is plate-shaped, and there are two horizontal hanging plates (3) corresponding to each mounting hole. The two horizontal hanging plates (3) are located on the front and back surfaces of the hanging rod (1) respectively.

6. A novel electrophoresis hanger according to claim 5, characterized in that: The support part (3.3) of each horizontal mounting plate (3) is folded outward relative to the mounting part (3.1); the support part (3.3) and the hanging part (3.4) of each horizontal mounting plate (3) are on the same plane.

7. A novel electrophoresis hanger according to claim 6, characterized in that: The hanging rod (1), hook (2) and horizontal hanging plate (3) are all made of conductive metal.

Images