An electrophoretic article drying apparatus

Abstract

This utility model discloses a drying device for electrophoretic coatings, comprising: a drying unit including a drying chamber, wherein an air-drying component is provided inside the drying chamber for air-drying the electrophoretic coatings after passing through the drying chamber; and a circulating conveying unit for circulating the electrophoretic coatings, comprising a conveyor line and a hanging rack, wherein several hanging fixtures are evenly distributed on the conveyor line, and each hanging fixture includes a suspension part for suspending the top of the hanging rack and a locking part for fixing the bottom of the hanging rack. This utility model employs symmetrically distributed exhaust vents on both the front and rear sides, with opposite and staggered air outlet directions, combined with heating resistance wires, to form a three-dimensional hot air field, effectively avoiding drying dead zones on the surface of the electrophoretic coatings. Simultaneously, the rotating structure of the hanging fixtures within the drying chamber ensures that all surfaces of the electrophoretic coatings are fully exposed to hot air, further improving the uniformity of drying and ensuring the curing quality of the coating on the surface of the electrophoretic coatings.

Description

Technical Field

[0001] This utility model relates to the field of electrophoretic coating technology, and in particular to an electrophoretic part drying device. Background Technology

[0002] Electrophoretic coating is a coating method that uses an external electric field to cause pigments and resin particles suspended in an electrophoretic solution to migrate directionally and deposit on the surface of a substrate, which is one of the electrodes. Electrophoretic coating on the exterior of parts can improve their corrosion and oxidation resistance. In the electrophoretic coating process, the drying process is a key step to ensure the curing quality of the coating on the surface of the electrophoretic parts.

[0003] In the electrophoretic coating process, coated parts need to be dried after the electrophoretic solution is applied. Drying dead zones can occur on the surface of electrophoretically coated parts, especially in complex structural areas (such as grooves and corners). For example, some equipment only has an exhaust structure on one side of the drying chamber, making it difficult for the airflow to cover the entire surface of the workpiece. This requires multiple drying cycles, extending the process time. Furthermore, the fixture structure is simple, typically only securing the electrophoretically coated parts with a top hook, lacking a limiting device for the bottom of the workpiece. This makes the workpiece prone to swaying or shifting during transport. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the current electrophoresis drying device, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide an electrophoresis drying device that is suitable for solving the problems of uneven drying and unstable conveying of electrophoresis parts in the prior art.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an electrophoresis part drying device, comprising:

[0008] The drying unit includes a drying chamber, inside which is an air-drying component for drying the electrophoretic parts that have passed through the drying chamber; and a circulating conveying unit for circulating the electrophoretic parts, which includes a conveyor line and a hanging rack, wherein several hanging fixtures are evenly distributed on the conveyor line, and the hanging fixtures include a suspension part for suspending the top of the hanging rack and a locking part for fixing the bottom of the hanging rack.

[0009] In a preferred embodiment of the electrophoresis drying device of this utility model, the air drying component includes a blower fixedly installed on the drying box, the output end of the blower is connected to a plurality of exhaust ports through a pipe, the exhaust ports are arranged vertically and their outlet cross-section is flat.

[0010] It should be noted that an air compressor or blower can be selected as a type of air supply device for the blower, depending on actual needs.

[0011] In a preferred embodiment of the electrophoretic part drying device of the present invention, a plurality of exhaust vents are symmetrically distributed along the front and rear sides of the drying path, and the air outlets on both sides are in opposite directions. The front exhaust vent and the rear exhaust vent are staggered. A heating resistance wire is fixedly installed inside the exhaust vent.

[0012] In a preferred embodiment of the electrophoretic coating drying device of this utility model, the conveyor line includes a base plate and conveyor rollers symmetrically and rotatably mounted on the base plate, as well as a toothed conveyor belt sleeved on the two conveyor rollers. A rotary motor is mounted on the base plate, and the output end of the rotary motor is connected to either conveyor roller. Support rods are equidistantly mounted on the toothed conveyor belt, and limit rings are fixedly connected to the support rods. A track adapted to the movement path of the limit rings is fixedly connected to the base plate, and the limit rings are slidably sleeved on the track.

[0013] In a preferred embodiment of the electrophoresis drying device of this utility model, the suspension part includes a support rod and a U-shaped hook disposed on the top of the support rod. A connecting shaft is fixedly connected to the top of the U-shaped hook, and a horizontal bracket is fixedly connected to the connecting shaft. The horizontal bracket is fixedly installed on the top of the support rod.

[0014] In a preferred embodiment of the electrophoresis drying device of this utility model, the locking part includes a mounting plate fixedly installed on the support rod, and two arc-shaped plates are symmetrically rotated on the mounting plate to clamp and fix the bottom of the hanging frame.

[0015] In a preferred embodiment of the electrophoretic coating drying device of this utility model, grooves are provided on the sides of the two arc-shaped plates that are close to each other, and clamping springs are provided in the grooves. The two ends of the clamping springs are respectively fixedly connected to the inner walls of the grooves of the two arc-shaped plates.

[0016] In a preferred embodiment of the electrophoretic coating drying device of this utility model, the movement path of the hanger passes through the drying box, a toothed plate is fixedly connected inside the drying box, and a driven gear is fixedly sleeved on the connecting shaft. When the hanger moves into the drying box with the toothed conveyor belt, the driven gear meshes with the toothed plate to drive the U-shaped hook to rotate.

[0017] The beneficial effects of this utility model are as follows: By using exhaust ports symmetrically distributed on both the front and back sides, with opposite and staggered air outlet directions, combined with heating resistance wires, a three-dimensional hot air field can be formed, effectively avoiding drying dead corners on the surface of the electrophoretic parts. At the same time, the rotating structure of the hanger in the drying chamber ensures that all surfaces of the electrophoretic parts can fully contact the hot air, further improving the uniformity of drying and ensuring the curing quality of the coating on the surface of the electrophoretic parts;

[0018] The gear-driven rotation mechanism requires no additional power and utilizes the kinetic energy of the conveyor to achieve 360-degree rotation of the workpiece. This reduces energy consumption while improving drying efficiency. Compared with traditional single-sided exhaust devices, it can reduce drying time by more than 30% and significantly increase production line capacity. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of an electrophoresis drying device proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the conveyor line structure of an electrophoresis drying device proposed in this utility model;

[0022] Figure 3 This is a cross-sectional view of the drying box structure of an electrophoresis drying device proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the hanging structure of an electrophoresis drying device proposed in this utility model.

[0024] Figure Descriptions: 100, Drying Unit; 101, Drying Box; 102, Air Drying Assembly; 102a, Fan; 102b, Exhaust Vent; 102c, Heating Resistance Wire; 200, Circulating Conveying Unit; 201, Conveyor Line; 201a, Base Plate; 201b, Conveyor Roller; 201c, Toothed Conveyor Belt; 201d, Rotary Motor; 201e, Support Rod; 201f, Limiting Ring; 201g, Track; 202, Hanger; 203, Hanger Fixture; 203a, U-shaped Hook; 203b, Connecting Shaft; 203c, Horizontal Support; 203d, Mounting Plate; 203e, Arc Plate; 203f, Clamping Spring; 203g, Driven Gear; 204, Toothed Plate. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1

[0030] Reference Figures 1-4 As one embodiment of this utility model, an electrophoresis part drying device is provided, which realizes rapid drying without dead angles and accelerates the drying efficiency, including:

[0031] The drying unit 100 includes a drying chamber 101, inside which a drying assembly 102 is installed. The drying assembly 102 is used to dry the electrophoretic parts that have passed through the drying chamber 101. The drying assembly 102 includes a blower 102a fixedly installed on the drying chamber 101. The output end of the blower 102a is connected to several exhaust ports 102b through a pipe. The exhaust ports 102b are vertically arranged and have a flat outlet cross-section. The multiple exhaust ports 102b are symmetrically distributed along the front and rear sides of the drying path, and the air outlets on both sides of the exhaust ports 102b have opposite air outlet directions. The front exhaust port 102b and the rear exhaust port 102b are staggered. A heating resistance wire 102c is fixedly installed inside the exhaust port 102b.

[0032] The function of the blower 102a is to generate airflow, which is then transported through pipes to various exhaust vents 102b. The flat exhaust vents 102b allow the airflow to be more concentrated and evenly directed onto the electrophoretic parts. The symmetrically distributed exhaust vents 102b with opposite airflow directions and staggered arrangement on both sides create a three-dimensional hot air field, drying the electrophoretic parts from different angles and effectively avoiding drying dead zones. The heating resistance wire 102c heats the airflow, improving drying efficiency.

[0033] A circulating conveying unit 200 is used to circulate and convey electrophoresis pieces. It includes a conveying line 201 and a hanger 202. Several hangers 203 are evenly distributed on the conveying line 201. Each hanger 203 includes a suspension part for suspending the top of the hanger 202 and a locking part for fixing the bottom of the hanger 202.

[0034] After the electrophoretic coating is applied, the operator hangs the top of the hanger 202 directly onto the U-shaped hook 203a of the hanger 203 on the conveyor line 201. The conveyor roller 201b drives the toothed conveyor belt 201c to send the hanger 203 into the drying chamber 101. The blower 102a is started, and the airflow is ejected from the staggered flat exhaust ports 102b on both sides through the pipe, forming a cross-convective hot air field. The heating resistance wire 102c works simultaneously to heat the airflow to 60-80℃. The electrophoretic part passes through the drying chamber 101 in a straight line with the hanger 203. The hot air washes the surface of the workpiece from multiple angles. After drying, it is removed by the toothed conveyor belt, and the operator removes the workpiece.

[0035] Example 2

[0036] Reference Figures 1-4 This is the second embodiment of the present invention, which differs from the previous embodiment in that...

[0037] The conveyor line 201 includes a base plate 201a, conveyor rollers 201b symmetrically and rotatably mounted on the base plate 201a, and toothed conveyor belts 201c sleeved on the two conveyor rollers 201b. A rotary motor 201d is mounted on the base plate 201a. The output end of the rotary motor 201d is connected to either conveyor roller 201b. Support rods 201e are equidistantly mounted on the toothed conveyor belt. Limiting rings 201f are fixedly connected to the support rods 201e. A track 201g adapted to the moving path of the limiting rings 201f is fixedly connected to the base plate 201a. The limiting rings 201f are slidably sleeved on the track 201g.

[0038] The rotation of the conveyor roller 201b drives the toothed conveyor belt 201c to move, thereby conveying the electrophoretic parts. The toothed conveyor belt 201c provides more stable transmission and prevents slippage. The cooperation between the limit ring 201f and the track 201g ensures that the support rod 201e moves along the predetermined path, guaranteeing the stability of the conveying.

[0039] The suspension unit includes a U-shaped hook 203a disposed at the top of the support rod 201e. A connecting shaft 203b is fixedly connected to the top of the U-shaped hook 203a, and a transverse bracket 203c is fixedly connected to the connecting shaft 203b. The transverse bracket 203c is fixedly installed at the top of the support rod 201e. The U-shaped hook 203a is used to suspend the top of the hanger 202, providing suspension support for the electrophoresis components.

[0040] The locking part includes a mounting plate 203d fixedly installed on the support rod 201e. Two arc-shaped plates 203e are symmetrically and rotatably mounted on the mounting plate 203d, and the two arc-shaped plates 203e cooperate to clamp and fix the bottom of the hanging bracket 202. Each of the two arc-shaped plates 203e has a groove on its side closest to each other, and a clamping spring 203f is installed in the groove. The two ends of the clamping spring 203f are fixedly connected to the inner walls of the grooves of the two arc-shaped plates 203e, respectively.

[0041] Under the action of the clamping spring 203f, the arc plate 203e can firmly clamp the bottom of the hanger 202 to prevent the electrophoretic parts from swinging or shifting during the conveying process.

[0042] The movement path of the hanger 203 passes through the drying box 101. The toothed plate 204 is fixedly connected inside the drying box 101. A driven gear 203g is fixedly sleeved on the connecting shaft 203b. When the hanger 203 moves into the drying box 101 with the toothed conveyor belt, the driven gear 203g meshes with the toothed plate 204 to drive the U-shaped hook 203a to rotate.

[0043] When the hanger 203 enters the drying chamber 101, the driven gear 203g meshes with the toothed plate 204, causing the U-shaped hook 203a to drive the electrophoretic parts to rotate. This allows all surfaces of the electrophoretic parts to fully contact the hot air, further improving the uniformity of drying.

[0044] In use, the operator first hangs the top of the hanger 202 with the U-shaped hook 203a, and then inserts the bottom of the hanger 202 between the two arc-shaped plates 203e. The arc-shaped plates 203e are squeezed and rotated, compressing the clamping spring 203f. The spring force firmly locks the bottom of the hanger 202. The toothed conveyor belt 201c accurately transports the hanger 203 to the drying box 101 through the limit ring 201f-track 201g structure. When the driven gear 203g on the connecting shaft 203b contacts the toothed plate 204, the gear rolls along the toothed plate 204, causing the U-shaped hook 203a to rotate clockwise, and the hanger 202 and the electrophoresis piece rotate synchronously. At the same time, the blower 102a and the heating resistance wire 102c are started. The hot air sprayed from the front and rear exhaust vents 102b forms a dynamic coverage as the workpiece rotates. Grooves, corners and other parts are exposed to the hot air flow field in turn during rotation. After drying is complete, the hanger 203 is removed from the drying chamber 101, the driven gear 203g disengages from the toothed plate 204 and stops rotating, and the operator manually pries open the arc plate 203e to remove the workpiece.

[0045] Through the precise transmission of the toothed conveyor belt 201c, the path constraint of the limiting track 201g, and the bottom elastic locking structure, the workpiece conveying offset is controlled within ±2mm. Combined with the self-rotating mechanism driven by the gear plate 204, the drying uniformity of complex structure workpieces is improved.

[0046] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electrophoretic article drying apparatus, characterized by comprising: include: The drying unit (100) includes a drying chamber (101) with an air-drying assembly (102) inside, which is used to air-dry the electrophoretic parts that have passed through the drying chamber (101). A circulating conveying unit (200) is used to circulate and convey electrophoretic parts. It includes a conveying line (201) and a hanger (202). Several hangers (203) are evenly distributed on the conveying line (201). The hanger (203) includes a suspension part for suspending the top of the hanger (202) and a locking part for fixing the bottom of the hanger (202).

2. The electrophoretic article drying apparatus of claim 1, wherein: The air drying assembly (102) includes a blower (102a) fixedly installed on the drying box (101). The output end of the blower (102a) is connected to a plurality of exhaust ports (102b) through a pipe. The exhaust ports (102b) are arranged vertically and their outlet cross-section is flat.

3. The electrophoretic article drying apparatus of claim 2, wherein: Multiple exhaust vents (102b) are symmetrically distributed along the front and rear sides of the drying path, and the exhaust directions of the two exhaust vents (102b) are opposite. The front exhaust vent (102b) and the rear exhaust vent (102b) are staggered. A heating resistance wire (102c) is fixedly installed inside the exhaust vent (102b).

4. The electrophoretic article drying apparatus of claim 1, wherein: The conveyor line (201) includes a base plate (201a), conveyor rollers (201b) symmetrically rotated on the base plate (201a), and toothed conveyor belts (201c) sleeved on the two conveyor rollers (201b). A rotary motor (201d) is installed on the base plate (201a), and the output end of the rotary motor (201d) is connected to either conveyor roller (201b). Support rods (201e) are equidistantly installed on the toothed conveyor belt (201c), and a limiting ring (201f) is fixedly connected to the support rod (201e). A track (201g) adapted to the moving path of the limiting ring (201f) is fixedly connected to the base plate (201a), and the limiting ring (201f) is slidably sleeved on the track (201g).

5. The electrophoretic article drying apparatus of claim 1, wherein: The suspension part includes a support rod (201e) and a U-shaped hook (203a) disposed on the top of the support rod (201e). A connecting shaft (203b) is fixedly connected to the top of the U-shaped hook (203a), and a horizontal bracket (203c) is fixedly connected to the connecting shaft (203b). The horizontal bracket (203c) is fixedly installed on the top of the support rod (201e).

6. The electrophoretic article drying apparatus of claim 5, wherein: The locking part includes a mounting plate (203d) fixedly installed on the support rod (201e), and an arc plate (203e) is symmetrically rotatably installed on the mounting plate (203d). The two arc plates (203e) cooperate with each other to clamp and fix the bottom of the hanging bracket (202).

7. The electrophoretic article drying apparatus of claim 6, wherein: The two arc-shaped plates (203e) are provided with grooves on their adjacent sides, and clamping springs (203f) are provided in the grooves. The two ends of the clamping springs (203f) are fixedly connected to the inner walls of the grooves of the two arc-shaped plates (203e).

8. The electrophoretic article drying apparatus of claim 5, wherein: The moving path of the hanger (203) passes through the drying box (101), the inside of the drying box (101) is fixedly connected with a tooth plate (204), a driven gear (203g) is fixedly sleeved on the connecting shaft (203b), when the hanger (203) moves to the inside of the drying box (101) along with the toothed belt conveying belt, the driven gear (203g) is engaged with the tooth plate (204) to drive the U-shaped hook (203a) to rotate.

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