A magnetic levitation painting device

Abstract

The present invention relates to a magnetic suspension painting device. The present invention comprises a painting frame, a magnetic suspension painting mold, and a painting positioning mold sleeve. The painting frame is provided with partition plates distributed according to the spacing between painting lines, and a mold fork is connected between two adjacent partition plates on the painting frame. The magnetic suspension painting mold comprises a painting mold sleeve, a mold core, and a first magnetic ring. The mold core is disposed within the painting mold sleeve, and the first magnetic ring is disposed within the painting mold sleeve. The painting positioning mold sleeve is positioned and placed on the mold fork. The lower end of the painting mold sleeve is disposed within the painting positioning mold sleeve, and the upper end of the painting positioning mold sleeve is provided with a second magnetic ring disposed opposite the first magnetic ring. The magnetic suspension painting mold remains suspended due to the repulsion between the first and second magnetic rings. The present invention can design the mold weight according to the specification range of the paint size and control the paint column by adjusting the size of the mold hole at the bottom of the painting mold, thereby improving the uniformity of the product paint film and enhancing product quality.

Description

Technical Field

[0001] The invention relates to the technical field of painting technology, in particular to a magnetic suspension painting device. Background Art

[0002] The electrical and mechanical properties of enameled wire depend on the quality of the insulating coating. To improve the uniformity of the coating, a die-coating method is currently commonly used. This method facilitates precise control of the wire's outer diameter, resulting in a more uniform coating and reduced eccentricity. During the production process, the stability of the coating system, the cleanliness of the coating apparatus and die, the positioning of the front and rear guide pulleys, the intermediate support pulleys, and the die frame, and the adjustment of straightness all affect the static pressure of the lacquer liquid between the wire and the die, affecting its self-centering performance and, consequently, the uniformity of the enameled wire's paint film, eccentricity, and the stability of product quality. With increasing environmental protection requirements, the solids content and viscosity of insulating lacquer are also increasing. Existing lacquer dies can be affected by the lift generated by the lacquer liquid, causing the lacquer die to contact the die fork and become unable to adjust, rendering the die's self-centering function ineffective. Alternatively, impact during painting can cause the die to move along with the enameled wire, affecting the coating effect.

[0003] To address this issue, some manufacturers currently control the mold's weight and the size of the paint column to offset the lift created by the paint liquid, thereby achieving a suspended state. However, factors such as pay-off tension, mold size, wire quality and size, insulating paint type, and vehicle speed all contribute to variations in the amount of paint applied, resulting in varying paint column sizes and lift. Relying solely on the mold's weight to maintain consistent balance during painting can lead to problems with the mold's position and potential for drop, and the suspension effect is lost.

[0004] Based on this, a mold and a painting device with stable suspension effect and high painting uniformity are needed. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a magnetic suspension painting device, which has the characteristics of good suspension effect, stable painting and high uniformity.

[0006] According to the technical solution provided by the present invention, a magnetic suspension painting device includes a painting frame, a magnetic suspension painting mold and a painting positioning mold sleeve, wherein partition plates are distributed on the painting frame according to the spacing of the painting lines, and a mold fork is connected between two adjacent partition plates on the painting frame;

[0007] The magnetic suspension painting mold includes a painting mold sleeve, a mold core and a first magnetic ring, wherein the mold core is arranged in the painting mold sleeve, and the first magnetic ring is arranged in the painting mold sleeve;

[0008] The paint positioning mold sleeve is positioned and placed on the mold fork, the lower end of the paint mold sleeve is sleeved in the paint positioning mold sleeve, and the upper end of the paint positioning mold sleeve is provided with a second magnetic ring arranged opposite to the first magnetic ring. The magnetic suspension paint mold is kept suspended by the repulsion of the same poles between the first magnetic ring and the second magnetic ring.

[0009] In one embodiment of the present invention, the paint mold sleeve includes an installation cavity and a hollow column connected to the installation cavity, the mold core is arranged in the installation cavity, and a first magnetic ring groove is formed between the bottom end of the installation cavity and the hollow column. The first magnetic ring is inserted into the hollow column and embedded in the first magnetic ring groove, and the mold core is provided with a wire threading hole for the wire to pass through.

[0010] In one embodiment of the present invention, the hollow column passes through the central hole of the paint positioning mold sleeve and is in clearance fit with the central hole of the paint positioning mold sleeve.

[0011] In one embodiment of the present invention, the magnetic suspension painting mold further includes an elastic retaining ring, the installation cavity is provided with a retaining ring groove, and the mold core is fixed in the installation cavity by the elastic retaining ring.

[0012] In one embodiment of the present invention, a positioning step groove is provided on the surface of the paint positioning mold sleeve, and a gap is provided between the positioning step groove and the upper and lower ends of the mold fork.

[0013] In one embodiment of the present invention, a second magnetic ring groove is provided at the upper end of the paint positioning mold sleeve, and the second magnetic ring is embedded in the second magnetic ring groove.

[0014] In one embodiment of the present invention, the paint rack includes an upper plate, a base, a support plate and a lower plate, the base is connected to the upper plate through the support plate, the lower plate is connected to the base, and the upper plate, base and lower plate are respectively provided with partition plate grooves for inserting partition plates at equal intervals.

[0015] In one embodiment of the present invention, the upper plate, the lower plate and the base are respectively connected with a first mold fork, a second mold fork and a third mold fork at equal intervals.

[0016] In one embodiment of the present invention, the first mold fork, the second mold fork and the third mold fork are staggered in vertical direction.

[0017] In one embodiment of the present invention, a position adjustment groove is provided at one end of the mold fork.

[0018] The above technical solution of the present invention has the following advantages over the prior art:

[0019] The present invention describes a magnetic suspension painting device. When the wire passes through the mold for painting, the two adjacent paint molds are staggered and installed on the mold fork, and the two adjacent paint molds are separated by a partition plate to prevent abnormal conditions from causing adjacent paint columns to contact and affect the control of the paint columns. The mold weight can be designed according to the specification range of the paint size and the paint column can be controlled by the size of the mold hole at the bottom of the paint mold, so that the mold's own gravity is slightly greater than the lift brought by the paint liquid, so that it can form magnetic repulsion between the bottom of the paint mold sleeve and the magnetic ring above the paint positioning mold sleeve and maintain a suspended state for painting through slight force changes during the painting process. It can also self-center, thereby achieving stability in suspended painting under different working conditions and improving versatility, further improving the uniformity of the product paint film, and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

[0021] Figure 1 It is a schematic diagram of the overall structure of the magnetic suspension painting device of the present invention.

[0022] Figure 2 It is a schematic diagram of the cooperation of the magnetic suspension painting mold, the painting positioning mold sleeve and the mold fork of the present invention.

[0023] Figure 3 It is a schematic diagram of the magnetic suspension painting mold of the present invention from a first perspective.

[0024] Figure 4 Schematic diagram of the magnetic suspension painting mold of the present invention from a second viewing angle.

[0025] Figure 5 It is a schematic diagram of a paint mold sleeve of the present invention.

[0026] Figure 6 It is a schematic diagram of the components in the hollow cavity of the magnetic suspension painting mold of the present invention.

[0027] Explanation of the reference numerals in the specification: 1. Painting rack; 11. Upper plate; 12. Base; 13. Support plate; 14. Lower plate; 2. Magnetic suspension painting mold; 21. Painting mold sleeve; 22. Mold core; 221. Threading hole; 23. First magnetic ring; 24. Mounting cavity; 25. Hollow column; 26. First magnetic ring groove; 27. Elastic retaining ring; 3. Painting positioning mold sleeve; 31. Second magnetic ring; 32. Positioning step groove; 33. Second magnetic ring groove; 4. Partitioning insert; 5. Mold fork; 51. Position adjustment groove; 52. First mold fork; 53. Second mold fork; 54. Third mold fork. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0029] Reference Figures 1 to 6 As shown, a magnetic suspension painting device of the present invention includes a painting frame 1, a magnetic suspension painting mold 2 and a painting positioning mold sleeve 3. Separation plates 4 are distributed on the painting frame 1 according to the spacing of the painting lines, and a mold fork 5 is connected between two adjacent separation plates 4 on the painting frame 1;

[0030] The magnetic suspension painting mold 2 includes a painting mold sleeve 21, a mold core 22 and a first magnetic ring 23. The mold core 22 is arranged in the painting mold sleeve 21, and the first magnetic ring 23 is sleeved on the painting mold sleeve 21.

[0031] The paint positioning mold sleeve 3 is positioned and placed on the mold fork 5, and the lower end of the paint mold sleeve 21 is sleeved in the paint positioning mold sleeve 3. The upper end of the paint positioning mold sleeve 3 is provided with a second magnetic ring 31 arranged opposite to the first magnetic ring 23. The magnetic suspension paint mold 2 remains suspended due to the repulsion of the first magnetic ring 23 and the second magnetic ring 31.

[0032] Through the above-mentioned arrangement, the magnetic suspension mold and the paint positioning mold sleeve 3 are nested with each other and rely on magnetic force to keep them stably suspended when the wire is painted. The weight of the magnetic suspension mold is designed according to the paint specification range, and the weight should be designed to be heavy. The bottom of the magnetic suspension mold and the magnetic ring above the paint positioning mold are used to form magnetic repulsion, and the weight of the magnetic suspension mold is designed to overcome the force changes under different working conditions during the painting process to maintain the suspended state for painting. The painting mold can be in a free suspended state, allowing it to self-center, with the characteristics of good suspension effect and uniform paint thickness, which greatly improves the stability of suspended painting and product quality.

[0033] Specifically, refer to Figures 2 to 5 The paint mold sleeve 21 includes an installation cavity 24 and a hollow column 25 connected to the installation cavity 24. The mold core 22 is arranged in the installation cavity 24. A first magnetic ring groove 26 is formed between the bottom end of the installation cavity 24 and the hollow column 25. The first magnetic ring 23 is inserted into the hollow column 25 and embedded in the first magnetic ring groove 26. The mold core 22 is provided with a wire threading hole 221 for the wire to pass through. A paint column control hole is formed at the bottom of the magnetic suspension mold for designing and controlling the size of the paint column.

[0034] Specifically, the hollow column 25 passes through the central hole of the paint positioning mold sleeve 3 and is loosely matched with the central hole of the paint positioning mold sleeve 3 .

[0035] Specifically, refer to Figure 6As shown, the magnetic suspension painting mold 2 further includes an elastic retaining ring 27, the installation cavity 24 is provided with a retaining ring groove, and the mold core 22 is fixed in the installation cavity 24 through the elastic retaining ring 27 and sealed by a sealant.

[0036] Specifically, refer to Figure 2 As shown, the surface of the paint positioning mold sleeve 3 is provided with a positioning step groove 32, with clearances between the positioning step groove 32 and the upper and lower ends of the mold fork 5. This arrangement ensures that the magnetic suspension mold is designed with a certain travel distance and is limited by the mold fork 5 to prevent the magnetic suspension mold from being dragged away due to abnormal conditions. The plane levelness is controlled by adjusting the contact surface between the step groove of the paint positioning mold sleeve 3 and the mold fork 5.

[0037] Specifically, a second magnetic ring groove 33 is provided at the upper end of the paint positioning mold sleeve 3 , and the second magnetic ring 31 is embedded in the second magnetic ring groove 33 .

[0038] Specifically, refer to Figure 1 As shown, the painting rack 1 includes an upper plate 11, a base 12, a support plate 13, and a lower plate 14. The base 12 is connected to the upper plate 11 via the support plate 13, and the lower plate 14 is connected to the base 12. The upper plate 11, base 12, and lower plate 14 are each provided with equally spaced slots for inserting spacer plates. A first mold fork 52, a second mold fork 53, and a third mold fork 54 are each equally spaced and connected to the upper plate 11, lower plate 14, and base 12. The first mold fork 52, the second mold fork 53, and the third mold fork 54 are arranged in an offset manner.

[0039] This arrangement allows adjacent paint lanes to be staggered vertically, preventing the effects of magnetic forces and paint pillars. Equally spaced positioning holes for the die fork 5 and slots for the separator plates are provided on the upper plate 11, lower plate 14, and base 12, depending on the line spacing, number of passes, and line direction of the production machines. The painting system features three levels of flat surfaces: base 12, upper plate 11, and lower plate 14, facilitating the installation of the die fork 5 and separator plates 4, tailored to the paint pass schedule and production requirements.

[0040] Specifically, one end of the mold fork 5 is provided with a position adjustment slot 51 and can be installed on the base 12, the upper plate 11 and the lower plate 14 by means of hexagon socket bolts.

[0041] The specific working process of the present invention is as follows:

[0042] The painting device is installed on the painting device of an external vertical enameling machine. The mold forks 5 are staggered up and down according to the painting passes and the wire routing positions. Then the wires are passed through the mold, and the wires are passed from bottom to top through the paint positioning mold sleeve 3 and the magnetic suspension mold and placed on the mold forks 5 of the corresponding passes in sequence. The adjacent passes are separated by a partition plate 4. During painting, the gravity of the magnetic suspension mold itself is slightly greater than the lift brought by the paint liquid, allowing it to form a magnetic repulsion between the bottom of the magnetic suspension mold and the magnetic ring above the paint positioning mold sleeve 3. The mold is kept in suspension by the slight force changes during the painting process, allowing it to self-center and improve the uniformity of the painting.

[0043] After the adjustment is completed, attention should be paid to the uniformity of the paint and the level of the magnetic force. The principle is to control the plane level by adjusting the contact surface between the step groove of the paint positioning die sleeve 3 and the die fork 5.

[0044] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A magnetic suspension painting device, characterized in that: It comprises a painting frame (1), a magnetic suspension painting mold (2) and a painting positioning mold sleeve (3); partition inserts (4) are distributed on the painting frame (1) according to the spacing of the painting lines; and a mold fork (5) is connected between two adjacent partition inserts (4) on the painting frame (1); The magnetic suspension painting mold (2) comprises a painting mold sleeve (21), a mold core (22) and a first magnetic ring (23), wherein the mold core (22) is arranged in the painting mold sleeve (21), and the first magnetic ring (23) is sleeved on the painting mold sleeve (21); The paint positioning mold sleeve (3) is positioned and placed on the mold fork (5), the lower end of the paint positioning mold sleeve (21) is sleeved in the paint positioning mold sleeve (3), and the upper end of the paint positioning mold sleeve (3) is provided with a second magnetic ring (31) arranged opposite to the first magnetic ring (23), and the magnetic suspension paint mold (2) is kept suspended by the repulsion of the first magnetic ring (23) and the second magnetic ring (31); The painting rack (1) comprises an upper plate (11), a base (12), a support plate (13) and a lower plate (14); the base (12) is connected to the upper plate (11) via the support plate (13); the lower plate (14) is connected to the base (12); and the upper plate (11), the base (12) and the lower plate (14) are respectively provided with partition plate slots for inserting partition plates (4) at equal intervals. The upper plate (11), the lower plate (14) and the base (12) are respectively connected with a first mold fork (52), a second mold fork (53) and a third mold fork (54) at equal intervals; The first mold fork (52), the second mold fork (53) and the third mold fork (54) are arranged in an upper and lower staggered manner.

2. A magnetic suspension painting device according to claim 1, characterized in that: The paint mold sleeve (21) includes a mounting cavity (24) and a hollow column (25) connected to the mounting cavity (24); the mold core (22) is arranged in the mounting cavity (24); a first magnetic ring groove (26) is formed between the bottom end of the mounting cavity (24) and the hollow column (25); the first magnetic ring (23) is inserted into the hollow column (25) and embedded in the first magnetic ring groove (26); the mold core (22) is provided with a threading hole (221) for a wire to pass through.

3. The magnetic suspension painting device according to claim 2, characterized in that: The hollow column (25) passes through the central hole of the paint positioning mold sleeve (3) and is clearance-matched with the central hole of the paint positioning mold sleeve (3).

4. The magnetic suspension painting device according to claim 2, characterized in that: The magnetic suspension painting mold (2) further comprises an elastic retaining ring (27), the installation cavity (24) is provided with a retaining ring groove, and the mold core (22) is fixed in the installation cavity (24) via the elastic retaining ring (27).

5. The magnetic suspension painting device according to claim 1, characterized in that: A positioning step groove (32) is provided on the surface of the paint positioning mold sleeve (3), and gaps are provided between the positioning step groove (32) and the upper and lower ends of the mold fork (5).

6. The magnetic suspension painting device according to claim 1, characterized in that: A second magnetic ring groove (33) is provided at the upper end of the paint positioning mold sleeve (3), and the second magnetic ring (31) is embedded in the second magnetic ring groove (33).

7. The magnetic suspension painting device according to claim 1, characterized in that: One end of the mold fork (5) is provided with a position adjustment slot (51).

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