A batch parts automatic coating mechanism based on rotation

Abstract

The present invention relates to the field of coating technology, and discloses a batch parts automatic coating mechanism based on rotation, including an electrostatic tank, a limiting frame is clamped on the electrostatic tank, a containing frame is integrally formed on the upper end of the limiting frame, slide grooves are opened on the inner walls on both sides of the electrostatic tank, a U-shaped frame is inserted in the electrostatic tank, and the two sides of the U-shaped frame are respectively clamped and slide in the slide grooves on both sides; a limiting piece for transmitting power is provided in the U-shaped frame. The present invention provides a thin metal strip, and the thin metal strip is squeezed with the parts, so that the thin metal strip can enter the cavity, so that the electrophoretic liquid can be better filled into the cavity of the part. The C-shape is provided to prevent the thin metal strip from being deformed as soon as it contacts the part and is difficult to extend into the cavity. The thin metal strip can be deformed under the extrusion of the part, so that the thin metal strip moves along the outer wall of the part and the thin metal strip can enter the cavity, so as to better fill the cavity of the part.

Description

Technical Field

[0001] The invention relates to the technical field of coating, in particular to an automatic coating mechanism for batch parts based on rotation. Background Art

[0002] Coating refers to covering the metal and non-metal surfaces with a protective layer or a decorative layer. Electrophoresis is the process of applying voltage at the positive and negative electrodes. The charged coating ions move to the cathode and react with the alkaline substances produced on the cathode surface to form insoluble substances, which are deposited on the surface of the workpiece to improve the surface performance of the workpiece.

[0003] During the electrophoretic coating process of parts, the parts need to be fixed, and then the parts are sunk into the pool for coating. However, during the electrophoretic coating of parts, the surface of the parts needs to be fully in contact with the electrophoretic liquid in the pool to achieve the coating effect. According to the patent application number 202320216098.9, the name is a fixed frame for electrophoretic coating of parts. It is mentioned that the rocker arm can sink the lower half of the assembly frame into the pool during the swing to immerse the workpiece assembled on the hanging rod. The rotating part can control the rotation of the inner ring to switch the immersion position. The fixed frame has a cantilevered lifting method. During the lifting and lowering process, the frame body will not shake, and has good stability and safety.

[0004] The above patent changes the immersion position by rotation, which is suitable for parts with relatively simple appearance. However, when the parts have complex appearance and cavities, the cavities may not be able to fully contact with the electrophoretic liquid in the electrophoretic bath, making it difficult to contact the local position, resulting in poor coating effect. Based on this, a rotation-based automatic batch parts coating mechanism is proposed. Summary of the invention

[0005] The object of the present invention is to provide a rotation-based automatic coating mechanism for batch parts to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotation-based automatic coating mechanism for batch parts, comprising an electrostatic tank, a limit frame is clamped on the electrostatic tank, a holding frame is integrally formed on the upper end of the limit frame, slide grooves are provided on the inner walls of both sides of the electrostatic tank, a U-shaped frame is inserted in the electrostatic tank, and both sides of the U-shaped frame are clamped and slide in the slide grooves on both sides;

[0007] A limiting member for transmitting power is arranged inside the U-shaped frame, and a soaking unit is arranged outside the limiting member. The soaking unit is in a three-dimensional rectangular shape, and an upper end is opened.

[0008] Preferably, the limiting member includes a rotating shaft, a metal sleeve, an annular layer and a threaded rod;

[0009] The rotating shaft is installed on a U-shaped frame, the upper end of the rotating shaft can be fixedly connected to the output end of the servo motor, the metal sleeve is fixedly sleeved near the lower end of the rotating shaft, the annular layer is fixed to the outside of the metal sleeve, and a plurality of threaded rods are provided. The plurality of threaded rods are evenly distributed circumferentially on the outside of the annular layer, and the plurality of threaded rods are fixedly arranged with the outside of the annular layer.

[0010] Preferably, the soaking unit comprises two side plates, a slide plate, two end frames, a frame frame, a threaded sleeve, a limit assembly and a metal frame layer;

[0011] The two side panels are symmetrically arranged, the slide plate is slidably arranged at the lower ends of the two side panels, the two end frames are respectively fixed on both sides of the two side panels, the frame frame is fixed on the outside of the end frame, the threaded sleeve is fixed on the outer wall of one end frame, and the threaded sleeve is matched with the threaded rod, the limit assembly is arranged on the outside of the side panel, the metal frame layer is vertically arranged between the two side panels, and the metal frame layer moves when the limit assembly is driven.

[0012] Preferably, a rectangular opening is opened on the outer side of the side plate, and the rectangular opening is used for the liquid to enter and exit. The end frame is arranged in a rectangular frame shape, and a filter layer is fixed in the frame frame, and the filter layer is used for limiting the position of the parts.

[0013] The metal frame layer also has a filter layer inside.

[0014] Preferably, the limit assembly includes a metal sheet layer, a rectangular long slot, a sleeve rod, a sleeve, a return spring, a C-shaped frame and a fixing plate;

[0015] The metal sheet metal layer is fixed to the outer side of the side plate, and a rectangular long groove is provided on the outer side of the metal sheet metal layer. The C-shaped frame is clamped and slid between the side plate and the metal sheet metal layer. The fixing plate is provided with two pieces, and the two fixing pieces are respectively fixed to the upper and lower ends of the C-shaped frame, and the fixing piece is against the outer side of the metal sheet metal layer. One side of the C-shaped frame passes through the side plate and the outer side of the metal frame layer and is fixed;

[0016] One side of the recess of the C-shaped frame is fixed to the sleeve rod, the sleeve is sleeved outside the sleeve rod, and the return spring is fixed to the end of the sleeve rod, the other end of the return spring is fixed to the inner wall of the sleeve, and the end of the sleeve is fixed to the metal sheet layer. The sleeve rod and the sleeve can push the C-shaped frame.

[0017] Preferably, two sides of the C-shaped frame are in contact with the side plates and the outer side of the metal sheet layer respectively, the outer wall of the C-shaped frame is smoothly arranged, and when the C-shaped frame is reset, it is close to the axis of the limiter.

[0018] Preferably, thin metal strips are arranged and fixed on the inner side of the filter layer, and the thin metal strips are U-shaped and have arc-shaped ends.

[0019] Preferably, the cross section of the metal strip is C-shaped, and the surface of the metal strip is smooth and elastic.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The present invention prevents parts from contacting each other by placing the parts in the immersion unit. During the rotation, the immersion unit can move against the electrophoretic liquid, so that the electrophoretic liquid and the parts are fully in contact, and the parts are better coated. Subsequently, the parts are lifted up from the bottom to the top, and the slide plate is slid to make the parts fall downward to complete the collection.

[0022] (2) The present invention provides a frame frame and a metal frame layer with a filter layer. The filter layer blocks the parts and partially covers the parts to increase the contact area, avoid scratching the outer wall of the parts, and ensure the quality of the parts.

[0023] (3) The present invention sets a filter layer in contact with the parts. When the servo motor drives the rotating shaft to rotate at different speeds, the filter layer contacts the parts at intervals, and the cavities on the surface of the parts can be relatively filled with electrophoretic liquid. Under the action of the rotating shaft, the electrophoretic liquid inside can be thrown out by swinging, thereby preventing a large amount of electrophoretic liquid from being carried out.

[0024] (4) The present invention provides a thin metal strip, which is squeezed against a part so that the thin metal strip can enter the cavity, thereby better filling the cavity of the part with electrophoretic liquid. The thin metal strip is provided in a C shape to prevent the thin metal strip from being deformed as soon as it contacts the part and being difficult to extend into the cavity. The thin metal strip can be deformed under the squeeze of the part, so that the thin metal strip moves along the outer wall of the part and can enter the cavity, thereby better filling the cavity of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the position-limiting member of the present invention;

[0027] Figure 3 This is a schematic diagram of the soaking unit explosion and filter layer hidden structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the metal frame layer structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0030] Figure 6 It is a schematic diagram of the top view structure of the metal frame layer of the present invention;

[0031] Figure 7 It is a schematic diagram of the cross-sectional structure of the metal strip of the present invention.

[0032] In the figure: 1, electric pool; 2, limit frame; 3, holding frame; 4, slide; 5, U-shaped frame; 6, limit member; 61, rotating shaft; 62, metal sleeve; 63, annular layer; 64, threaded rod; 7, immersion unit; 71, side plate; 72, rectangular opening; 73, slide plate; 74, end frame; 75, frame frame; 76, threaded sleeve; 77, limit assembly; 771, metal sheet metal layer; 772, rectangular long groove; 773, sleeve rod; 774, sleeve; 775, reset spring; 776, C-shaped frame; 777, fixing plate; 78, metal frame layer; 781, metal strip. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-7 ,

[0035] Embodiment 1:

[0036] The present invention provides a technical solution: a rotation-based batch parts automatic coating mechanism, comprising an electrostatic tank 1, a limiting frame 2 is clamped on the electrostatic tank 1, a holding frame 3 is integrally formed on the upper end of the limiting frame 2, slide grooves 4 are opened on the inner walls of both sides of the electrostatic tank 1, a U-shaped frame 5 is inserted in the electrostatic tank 1, and both sides of the U-shaped frame 5 are clamped and slid in the slide grooves 4 on both sides for easy removal;

[0037] A limiting member 6 for transmitting power is arranged inside the U-shaped frame 5 , and an immersion unit 7 is arranged outside the limiting member 6 . The immersion unit 7 is in a three-dimensional rectangular shape, and an upper end is opened.

[0038] The limiting member 6 includes a rotating shaft 61, a metal sleeve 62, an annular layer 63 and a threaded rod 64;

[0039] The rotating shaft 61 is installed on the U-shaped frame 5, and the upper end of the rotating shaft 61 can be fixedly connected to the output end of the servo motor. The metal sleeve 62 is fixedly sleeved near the lower end of the rotating shaft 61, and the annular layer 63 is fixed on the outside of the metal sleeve 62. A plurality of threaded rods 64 are provided, and the plurality of threaded rods 64 are evenly distributed on the outside of the annular layer 63, and the plurality of threaded rods 64 are fixedly arranged with the outside of the annular layer 63.

[0040] The soaking unit 7 includes two side plates 71, a slide plate 73, two end frames 74, a frame frame 75, a threaded sleeve 76, a limit assembly 77 and a metal frame layer 78;

[0041] The two side panels 71 are symmetrically arranged, the slide plate 73 is slidably arranged at the lower ends of the two side panels 71, the two end frames 74 are respectively fixed on both sides of the two side panels 71, the frame frame 75 is fixed on the outside of the end frame 74, the threaded sleeve 76 is fixed on the outer wall of one end frame 74, and the threaded sleeve 76 is matched with the threaded rod 64, the limit assembly 77 is arranged on the outside of the side panel 71, the metal frame layer 78 is vertically arranged between the two side panels 71, and the metal frame layer 78 moves when the limit assembly 77 is driven.

[0042] A rectangular opening 72 is provided on the outer side of the side plate 71, and the rectangular opening 72 is used for the liquid to enter and exit. The end frame 74 is arranged in a rectangular frame shape, and a filter layer is fixed in the frame frame 75, and the filter layer is used for limiting the position of the parts.

[0043] The metal frame layer 78 also has a filter layer inside, so that the electrophoretic liquid on the outside can smoothly enter the inside and contact the parts.

[0044] The limiting assembly 77 includes a metal sheet layer 771, a rectangular long slot 772, a sleeve rod 773, a sleeve 774, a return spring 775, a C-shaped frame 776 and a fixing plate 777;

[0045] The metal sheet metal layer 771 is fixed to the outer side of the side plate 71, and a rectangular long groove 772 is provided on the outer side of the metal sheet metal layer 771, and the C-shaped frame 776 is clamped and slid between the side plate 71 and the metal sheet metal layer 771. There are two fixing plates 777, and the two fixing plates 777 are respectively fixed to the upper and lower ends of the C-shaped frame 776 to achieve the effect of fiber, and the fixing plates 777 are against the outer side of the metal sheet metal layer 771. One side of the C-shaped frame 776 penetrates the side plate 71 and the outer side of the metal frame layer 78 and is fixed, and the C-shaped frame 776 can slide along the metal sheet metal layer 771, so that the C-shaped frame 776 moves;

[0046] The recessed side of the C-shaped frame 776 is fixed to the sleeve rod 773, the sleeve 774 is sleeved outside the sleeve rod 773, and the return spring 775 is fixed to the end of the sleeve rod 773. The other end of the return spring 775 is fixed to the inner wall of the sleeve 774. The end of the sleeve 774 is fixed to the metal sheet layer 771. The sleeve rod 773 and the sleeve 774 can push the C-shaped frame 776, which is compressed by the centrifugal force and then restored without force.

[0047] The two sides of the C-shaped frame 776 are in contact with the side plate 71 and the outer side of the metal sheet layer 771 respectively. The outer wall of the C-shaped frame 776 is smoothly set. When the C-shaped frame 776 is reset, it is close to the axis of the limit member 6 and moves outward under the action of centrifugal force.

[0048] The parts are placed downward from the upper end of the immersion unit 7, and then multiple immersion units 7 can be placed to avoid contact between parts. Finally, the servo motor at the upper end of the rotating shaft 61 works to rotate the rotating shaft 61, and the U-shaped frame 5 is placed downward into the electrophoresis tank 1. During the rotation, the immersion unit 7 can move against the electrophoresis liquid, so that the electrophoresis liquid and the parts are fully contacted, so that the parts are better coated. Subsequently, the parts are lifted from the bottom to the top, and the slide plate 73 is slid to make the parts fall downward to complete the collection.

[0049] Secondly, by providing the frame frame 75 and the metal frame layer 78 with a filter layer, the parts move outward under the action of centrifugal force during the rotation process, so that the parts come into contact with the filter layer. At the same time, the filter layer blocks the parts and partially covers the parts, thereby increasing the contact area and avoiding scratches on the outer wall of the parts, thereby ensuring the quality of the parts.

[0050] Secondly, under the action of centrifugal force, the metal frame layer 78 also moves outward. The metal frame layer 78 can drive the C-shaped frame 776 to move outward, compressing the sleeve rod 773 and the sleeve 774, and the filter layer in the metal frame layer 78 also contacts the parts. Under the change of the speed of the servo motor driving the rotating shaft 61, the filter layer contacts the parts at intervals, so that the cavity on the surface of the parts can be relatively filled with the electrophoretic liquid. After being subsequently raised, under the action of the rotating shaft 61, it is swung, which can cause the internal electrophoretic liquid to be swung out to avoid a large amount of electrophoretic liquid being brought out.

[0051] Embodiment 2:

[0052] On the basis of the first embodiment, the inner side of the filter layer is fixed with arranged metal strips 781, the metal strips 781 are U-shaped and the ends are arc-shaped.

[0053] The cross section of the metal strip 781 is C-shaped, and the surface of the metal strip 781 is smooth and elastic.

[0054] By setting the metal strip 781, under the action of the metal strip 781, the metal strip 781 moves with the metal frame layer 78, and the metal strip 781 is squeezed with the part, so that the metal strip 781 can enter the cavity, and the electrophoretic liquid can enter the cavity with it, so that the electrophoretic liquid can be better filled into the cavity of the part. Secondly, it is set to have a C shape to prevent the metal strip 781 from being deformed as soon as it touches the part and difficult to extend into the cavity. Secondly, the metal strip 781 can be deformed under the squeezing of the part, so that the metal strip 781 moves along the outer wall of the part and the metal strip 781 can enter the cavity, better fill the cavity of the part, and reset under the action of the reset spring 775 without being affected by force, thereby realizing the reset of the metal strip 781.

[0055] 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 rotation-based automatic coating mechanism for batch parts, comprising an electrostatic tank (1), wherein a limit frame (2) is clamped on the electrostatic tank (1), and a holding frame (3) is integrally formed at the upper end of the limit frame (2), characterized in that: Slide grooves (4) are provided on the inner walls of both sides of the electrothermal pool (1), a U-shaped frame (5) is inserted in the electrothermal pool (1) in an inverted manner, and the two sides of the U-shaped frame (5) are respectively clamped and slidable in the slide grooves (4) on both sides; A limiting member (6) for transmitting power is provided inside the U-shaped frame (5), and an immersion unit (7) is provided outside the limiting member (6); the immersion unit (7) is in a three-dimensional rectangular shape and has an opening at the upper end; The soaking unit (7) comprises two side plates (71), a slide plate (73), two end frames (74), a frame frame (75), a threaded sleeve (76), a limit assembly (77) and a metal frame layer (78); The limiting assembly (77) comprises a metal sheet layer (771), a rectangular long groove (772), a sleeve rod (773), a sleeve (774), a return spring (775), a C-shaped frame (776) and a fixing plate (777); The metal sheet metal layer (771) is fixed to the outer side of the side plate (71), and a rectangular long groove (772) is provided on the outer side of the metal sheet metal layer (771). The C-shaped frame (776) is clamped and slidably arranged between the side plate (71) and the metal sheet metal layer (771). Two fixing plates (777) are provided, and the two fixing plates (777) are respectively fixed to the upper and lower ends of the C-shaped frame (776), and the fixing plates (777) are abutted against the outer side of the metal sheet metal layer (771). One side of the C-shaped frame (776) passes through the side plate (71) and the outer side of the metal frame layer (78) and is fixedly arranged. The concave side of the C-shaped frame (776) is fixedly arranged with the sleeve rod (773), the sleeve (774) is sleeved outside the sleeve rod (773), and the return spring (775) is fixed to the end of the sleeve rod (773), the other end of the return spring (775) is fixed to the inner wall of the sleeve (774), the end of the sleeve (774) is fixedly arranged with the metal sheet layer (771), and the sleeve rod (773) and the sleeve (774) can push the C-shaped frame (776).

2. The rotation-based batch parts automatic coating mechanism according to claim 1 is characterized in that: The limiting member (6) comprises a rotating shaft (61), a metal sleeve (62), an annular layer (63) and a threaded rod (64); The rotating shaft (61) is rotatably mounted on the U-shaped frame (5); the upper end of the rotating shaft (61) can be fixedly connected to the output end of the servo motor; the metal sleeve (62) is fixedly sleeved near the lower end of the rotating shaft (61); the annular layer (63) is fixed to the outside of the metal sleeve (62); a plurality of threaded rods (64) are provided; the plurality of threaded rods (64) are evenly distributed circumferentially on the outside of the annular layer (63); and the plurality of threaded rods (64) are fixedly arranged on the outside of the annular layer (63).

3. The rotation-based batch parts automatic coating mechanism according to claim 2 is characterized in that: The two side plates (71) are symmetrically arranged, the slide plate (73) is slidably arranged at the lower ends of the two side plates (71), the two end frames (74) are respectively fixed on both sides of the two side plates (71), the frame frame (75) is fixed on the outer side of the end frame (74), the threaded sleeve (76) is fixed on the outer wall of one end frame (74), and the threaded sleeve (76) is arranged in cooperation with the threaded rod (64), the limit assembly (77) is arranged on the outer side of the side plate (71), the metal frame layer (78) is vertically arranged between the two side plates (71), and the metal frame layer (78) moves when the limit assembly (77) is driven.

4. The rotation-based batch parts automatic coating mechanism according to claim 3 is characterized in that: The outer side of the side plate (71) is provided with a rectangular opening (72), the rectangular opening (72) is used for the inlet and outlet of liquid, the end frame (74) is arranged in a rectangular frame shape, a filter layer is fixed inside the frame frame (75), and the filter layer is used for limiting the position of parts; The metal frame layer (78) also has a filter layer inside.

5. The rotation-based batch parts automatic coating mechanism according to claim 1 is characterized in that: The two sides of the C-shaped frame (776) are in contact with the side plate (71) and the outer side of the metal sheet layer (771) respectively. The outer wall of the C-shaped frame (776) is smoothly arranged, and when the C-shaped frame (776) is reset, it is close to the axis of the limiting member (6).

6. The rotation-based batch parts automatic coating mechanism according to claim 4 is characterized in that: Arranged metal thin strips (781) are fixed to the inner side of the filter layer, and the metal thin strips (781) are U-shaped, and the ends are arc-shaped.

7. The rotation-based batch parts automatic coating mechanism according to claim 6 is characterized in that: The cross section of the metal strip (781) is C-shaped, and the surface of the metal strip (781) is smooth and elastic.

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