CN220479173U - Spin coater and precoating production line - Google Patents

Abstract

The utility model discloses a spin coater and a precoating production line, which relate to the technical field of spraying equipment, and comprise a rack, a coating device arranged on the rack, and a paint receiving device arranged on one side of the spraying direction of the coating device, wherein a cavity is formed in the paint receiving device; one side of the paint receiving device, which is far away from the coating device, is provided with a workpiece bearing device, the workpiece bearing device is arranged on the frame and is used for bearing a workpiece, and the workpiece bearing device can move to a position corresponding to the inlet of the containing cavity of the paint receiving device. The spin coater can spin-coat a workpiece, and is provided with the paint receiving device, so that a coating material used in the spin coater in the spin coating process can be recycled for the second time, the coating material utilization rate of the spin coater is high, and the production cost is reduced; meanwhile, the coating materials are collected, so that the production is cleaner, and the pollution is reduced.

Description

Spin coater and precoating production line

Technical Field

The utility model relates to the technical field of spraying equipment, in particular to a spin coater and a precoating production line.

Background

The spraying technology is widely applied, and can be used for treating the surfaces of articles such as metal, ceramic and the like, so that the surface properties of the articles such as metal, ceramic and the like are better. The spraying comprises air spraying, airless spraying, electrostatic spraying, high-flow low-pressure materialization spraying, thermal spraying, multi-group spraying and the like. For metal spraying, air compression is often used as a motive force to form a high-speed spray beam to spray the coating onto the surface of a workpiece to be treated at a high speed, so that the shape of the outer surface of the workpiece surface is changed.

The existing spraying technology is irregular in shape after the product is stretched, and the atomization spraying surface of the spray gun is fan-shaped, so that partial waste can occur during spraying, for example, a turnup can be generally arranged on the edge of a pot, and therefore, the situation that partial areas cannot be sprayed once can occur during spraying, multiple spraying is needed, and a large amount of coating materials are wasted. The actual coating material utilization of most spray processes can only reach 45% or even lower.

Disclosure of Invention

The present utility model aims to solve one of the technical problems in the related art to a certain extent. Therefore, the utility model provides a spin coater and a precoating production line, which have the advantages of high utilization rate of coating materials and high spin coating efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the spin coater comprises a rack, a coating device arranged at the upper part of the rack, and a paint receiving device arranged at one side of the spraying direction of the coating device, wherein a cavity is formed in the paint receiving device; the paint receiving device is characterized in that a workpiece bearing device is arranged on one side, far away from the coating device, of the paint receiving device, the workpiece bearing device is arranged on the frame and is used for bearing a workpiece, and the workpiece bearing device can move to a position corresponding to an inlet of the containing cavity of the paint receiving device. The method has the following beneficial effects: the spin coater can spin-coat workpieces, is equipment capable of spin-coating in a large scale, and solves the problem that spin coating in the prior art cannot be produced in a large scale. The spin coater of the utility model is provided with a paint receiving device for recovering the coating material, and the paint receiving device can recover the coating material. Therefore, the utilization rate of the coating material can be greatly improved to 95% or even higher, so that the cost during coating is reduced, and the efficiency is improved. And the coating material is recycled, so that the production is cleaner, and the requirements of clean production are met.

Optionally, the paint receiving device is cylindrical, and comprises a side wall, a top plate and a bottom plate, and the side wall, the top plate and the bottom plate jointly form the accommodating cavity; the top plate is arranged at one end of the side wall, which is close to the coating device, and the bottom plate is arranged at one end of the side wall, which is close to the workpiece bearing device; the top plate is provided with a coating hole penetrating through the top plate in the thickness direction, the bottom plate is provided with an extending hole penetrating through the bottom plate in the thickness direction, the coating hole is communicated with the extending hole, an outlet of the coating device faces the coating hole, an inlet of the cavity is positioned between the coating hole and the extending hole, and the workpiece bearing device can move to the extending hole. The containing cavity in the paint receiving device is used for containing coating materials overflowed from the workpiece, and after the coating materials overflowed from the workpiece, the coating materials enter the containing cavity through an inlet of the containing cavity and are collected for secondary use.

Optionally, the paint receiving device further includes a protrusion, where the protrusion is disposed at an outer edge of the extension hole and extends toward the top plate, and a space between an end surface of the protrusion toward the top plate and the top plate is formed as an inlet of the cavity. The bulge, the bottom plate and the side wall form a containing cavity together.

Optionally, the workpiece bearing device comprises a sucker, a bearing shaft, a rotary driving mechanism, a transmission mechanism and an axial driving mechanism, wherein the sucker is arranged on one side of the paint receiving device, which is far away from the painting device, the first end of the bearing shaft is fixedly connected with the sucker, the bearing shaft is arranged on one side of the sucker, which is far away from the paint receiving device, the output end of the rotary driving mechanism is connected with the input end of the transmission mechanism, and the output end of the transmission mechanism is connected with the second end of the bearing shaft so as to drive the bearing shaft to rotate around the axis of the bearing shaft. The sucker in the workpiece bearing device is controlled to rotate through a rotary driving mechanism, and the rotary driving device can be a driving motor or a stepping motor, and drives the bearing shaft to rotate through a transmission belt or gear transmission so as to drive the sucker fixed on the bearing shaft to rotate.

Optionally, the axial driving mechanism is disposed at the second end of the bearing shaft, and the axial driving mechanism is used for driving the sucker to reciprocate along the axial direction of the sucker. The axial driving mechanism can be an air cylinder or a hydraulic cylinder, and can drive the bearing shaft to reciprocate along the axial direction of the bearing shaft so as to drive the sucker to reciprocate along the axial direction of the bearing shaft.

Optionally, the diameter of the suction cup is a selected value between 80mm and 120 mm.

Optionally, the diameter of the extending hole is larger than the diameter of the coating hole.

Optionally, be provided with the locating part in the frame, the locating part includes lead screw slip table, spacing support, spacing cylinder and spacing protrusion, the lead screw slip table can drive spacing support is followed the length direction of lead screw slip table removes, spacing support set up in on the lead screw slip table, spacing support is provided with spacing cylinder with spacing protrusion, spacing protrusion is followed spacing support orientation the coating device protrusion, spacing cylinder can drive spacing protrusion is followed spacing convex protrusion direction reciprocating motion. The screw rod sliding table can enable the limiting piece to move on the frame, and the position of the workpiece is adjusted through the protrusion, so that the workpiece is concentric with the sucker. The limiting cylinder enables the limiting protrusion to move up and down and can block the workpiece.

Optionally, the spin coater further comprises a conveying mechanism, one end of the conveying mechanism is connected to the upstream of the spin coater, and the other end of the conveying mechanism is connected to the downstream of the spin coater.

In addition, the utility model also provides a precoating production line, which comprises the spin coater according to any one of the above. The drawing device is used for drawing the workpiece coated by the spin coater. The precoating production line provided by the utility model is similar to the above-mentioned beneficial effect reasoning process of the spin coater, and is not repeated here.

These features and advantages of the present utility model will be disclosed in more detail in the following detailed description and the accompanying drawings. The best mode or means of the present utility model will be described in detail with reference to the accompanying drawings, but is not limited to the technical scheme of the present utility model. In addition, these features, elements, and components are shown in plural in each of the following and drawings, and are labeled with different symbols or numerals for convenience of description, but each denote a component of the same or similar construction or function.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a side cross-sectional view of a spin coater according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a spin coater according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of another side of the spin coater according to the embodiment of the present utility model;

FIG. 4 is a schematic diagram of a spin coater according to an embodiment of the present utility model;

FIG. 5 is a top view of a spin coater according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a structure of a paint receiving device using a spin coater according to the novel embodiment;

FIG. 7 is a schematic view of a chuck in a spin coater in a paint receiving device according to an embodiment of the present utility model;

fig. 8 is an enlarged schematic view of the portion a in fig. 3.

Wherein, 1, a frame; 2. a conveying mechanism; 3. a coating device; 4. a paint receiving device; 41. coating holes; 42. an extending hole; 43. an inlet; 44. a sidewall; 45. a top plate; 46. a bottom plate; 47. a protrusion; 5. a workpiece carrying device; 51. a suction cup; 52. a bearing shaft; 53. a rotary driving mechanism; 54. a transmission mechanism; 55. an axial driving mechanism; 6. a workpiece; 7. a limiting piece; 71. a screw rod sliding table; 72. a limit bracket; 73. a limit cylinder; 74. and the limit protrusion.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The examples in the embodiments are intended to illustrate the present utility model and are not to be construed as limiting the present utility model.

Reference in the specification to "one embodiment" or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment itself can be included in at least one embodiment of the present patent disclosure. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

Examples:

the embodiment provides a spin coater, and the spin coater provided in this embodiment is a part of a precoating production line, and a stretching device is further arranged at the downstream of the spin coater, so that a workpiece subjected to coating treatment by the spin coater can be subjected to stretching treatment.

As shown in fig. 1, 2 and 3, the spin coater in this embodiment includes a frame 1, the frame 1 provides a supporting function for the spin coater, a conveying mechanism 2 is provided on the frame 1, the conveying mechanism 2 can convey products from other processes into the spin coater, specifically, one end of the conveying mechanism 2 is connected to an upstream production device of the spin coater, and the other end is connected to a downstream production device of the spin coater. In this embodiment the conveyor 2 is a conveyor belt, but in other embodiments it may also be a clamping conveyor or a parallel feed mechanism. As shown in fig. 4, the upper part of the frame 1 is provided with a painting device 3, and the conveyor 2 is positioned so that the work passes under the painting device 3. In the present embodiment, the coating device 3 is a spray gun separately fixed to the frame 1, and the spray direction of the spray gun is downward spray. In the spraying direction of the spray gun, a paint receiving device 4 is arranged, the paint receiving device 4 is cylindrical, and a workpiece bearing device 5 is arranged on the direction of one end, far away from the spray gun, of the paint receiving device 4. In the present embodiment, the work carrying device 5 is disposed below the paint receiving device 4.

The working flow of the spin coater is as follows: the conveying mechanism 2 conveys the workpiece 6 to the workpiece carrying device 5, and the workpiece carrying device 5 fixes the workpiece 6. After the workpiece carrying device 5 fixes the workpiece 6, the workpiece carrying device 5 sends the workpiece 6 into the paint receiving device 4. After the workpiece 6 enters the paint receiving device 4, the coating device 3 is started to carry out coating operation on the workpiece 6.

Specifically, the workpiece carrying device 5 includes a suction cup 51, a carrying shaft 52, a rotation driving mechanism 53, a transmission mechanism 54, and an axial driving mechanism 55. In this embodiment, the suction cup 51 has a disk shape with a diameter of 80mm to 120 mm. The suction cup 51 in this embodiment is mainly used for carrying sheet-like base material workpieces for producing pot products, and the sheet-like base material workpieces can be stretched into pot products with various shapes, such as woks, electric cooker liners, air fryer liners and flat-bottom frying pans. The suction cup 51 is connected with a rotary driving mechanism 53 through a bearing shaft 52 and a transmission mechanism 54. Wherein the suction cup 51 is fixed to the bearing shaft 52 near the first end of the paint receiving device 4. The rotary drive 53 is connected to a second end of the carrier shaft 52 by a transmission 54. In this embodiment, the rotation driving mechanism 53 is a driving motor, the transmission mechanism 54 is a transmission belt, and in other embodiments, the transmission mechanism 54 may be a chain or a gear, and the rotation driving mechanism 53 may be a numerical control motor. The bearing shaft 52, the rotation driving mechanism 53 and the transmission mechanism 54 are provided on the same platform of the frame 1, the bearing shaft 52 is rotatable relative to the platform, and the bearing shaft 52, the rotation driving mechanism 53 and the transmission mechanism 54 are kept in agreement with the platform in the axial direction. An axial drive 55 is provided under the platform, i.e. a rotary drive 53 is provided near the second end of the carrier shaft. In the present embodiment, the axial driving mechanism 55 may be a cylinder, a hydraulic cylinder, a stepping motor, or the like. The axial driving mechanism 55 enables the platform to reciprocate in the axial direction, so as to drive the bearing shaft 52, the rotary driving mechanism 53 and the transmission mechanism 54 to reciprocate in the axial direction. The suction cup 51 can be made to reciprocate in the axial direction during the axial reciprocation of the carrier shaft 52. Thus, the suction cup 51 is rotatable about its axis and reciprocally movable in the axial direction. The first and second ends referred to herein are used merely to identify the ends of the load bearing shaft and are not intended to be limiting.

As shown in fig. 2 and 5, the paint receiving device 4 includes a side wall 44, a top plate 45 and a bottom plate 46, and the side wall 44, the top plate 45 and the bottom plate 46 together form a cavity. The top plate 45 is disposed at an end closer to the coating device 3, and the bottom plate 46 is disposed at an end farther from the coating device 3 and closer to the workpiece carrying device 5. As shown in fig. 6, a coating hole 41 is formed in the top plate 45, an insertion hole 42 is formed in the bottom plate 46, the coating hole 41 communicates with the insertion hole 42, and in this embodiment, the coating hole 41 and the insertion hole 42 are concentric. The coating material sprayed from the coating device 3 can enter the paint receiving device 4 through the coating holes 41. The suction cup 51 can drive the workpiece 6 into the paint receiving device 4 through the extending hole 42. The edge of the access hole 42 is provided with a projection 47 extending in the axial direction of the suction cup toward the spray gun, the projection 47 being annular. The projection 47, the side wall 44 and the base plate 46 together form a chamber for receiving the coating material. As shown in fig. 7, the inlet 43 of the chamber is a gap between the top plate 45 and the protrusion 47, and the suction cup 51 is axially movable to a position corresponding to the inlet 43 of the chamber.

The working principle of the spin coater is as follows: when coating a workpiece, the coating device ejects a coating material linearly to the middle region of the workpiece 6, and at the same time, the suction cup 51 controls the rotation of the workpiece 6. The coating material falls onto the work 6 under the combined action of gravity and the thrust given by the coating device 3. When the workpiece 6 rotates, centrifugal force is generated. The coating material is continuously flowed toward the outer edge of the work piece 6 by centrifugal force so that the coating material covers the entire upper surface of the work piece 6. During spin coating, the excess coating material is thrown radially outward of the workpiece 6 by centrifugal force and enters the cavity of the paint receiving device 3.

The bottom of the paint receiving device 4 is provided with an outflow hole, so that the coating material in the containing cavity can flow out along the outflow hole. The outflow hole is connected with a pipe (not shown in the figure), and the coating material can flow out through the pipe and be recovered for secondary use. Therefore, the coating material is not wasted, and the utilization rate of more than 95% can be achieved. In general coating equipment, the use ratio of the coating material is often 45% or less, and the use ratio of the coating material is low.

When the spin coater in this embodiment works, the working flow is as follows: the transfer mechanism 2 in turn transfers the work pieces 6 to the work piece carrier 5. The conveying mechanism 2 pauses operation each time the conveying is completed, and the next conveying is performed after the workpiece 6 is coated. As shown in fig. 3 and 8, in this embodiment, a limiting member 7 is provided on a suction cup, the limiting member 7 includes a screw sliding table 71, a limiting bracket 72, a limiting cylinder 73 and a limiting projection 74, the screw sliding table 71 can drive the limiting bracket 72 to move along the length direction of the screw sliding table 71, the limiting bracket 72 is provided on the screw sliding table 71, the limiting bracket 72 is provided with the limiting cylinder 73 and the limiting projection 74, the limiting projection 74 projects from the limiting bracket 72 toward the coating device 3, and the limiting cylinder 73 can drive the limiting projection 74 to reciprocate along the projecting direction of the limiting projection 74. When the chuck 51 drives the workpiece 6 to rotate, the chuck 51 is required to be concentric with the workpiece 6, so that spin coating is more uniform, the screw rod sliding table 71 can drive the limit protrusion to move, and the position of the workpiece 6 is corrected, so that the workpiece 6 is concentric with the chuck 51. The limiting bracket 72 on the screw sliding table 71 is used for providing support for the limiting cylinder 73 and the limiting protrusion 74, the limiting cylinder can enable the limiting bracket 72 to move up and down, and the limiting protrusion 74 can be driven to move due to the fact that the limiting protrusion 74 is arranged on the limiting bracket 72. The up and down movement of the limit projection 74 causes the workpiece 6 to be blocked when the limit projection 74 moves up; when the limit projection is lowered, the workpiece 6 can be brought by the conveyor 2 to a subsequent production device. The limiting projection 74 shown in fig. 8 is located at a position where the workpiece 6 can be blocked, and at this time, the limiting projection 74 can be driven by the screw slide table 71 to correct the position of the workpiece 6. In this embodiment, the limiting cylinder driving the limiting bracket 72 to move up and down may be a hydraulic cylinder in other embodiments. After the workpiece 6 is sucked by the suction cup 51, the suction cup 51 is driven by the axial driving mechanism to move upwards and drive the workpiece 6 to move upwards. As shown in fig. 7, the suction cup 51 and the workpiece 6 pass through the extending hole below the paint receiving device 4 together, enter the paint receiving device 4 and reach the position of the inlet 43 of the cavity. After the workpiece enters the reverse paint receiving device, the coating device 3 is started to spray the coating material onto the workpiece 6. At the time of coating, the suction cup 51 is driven to rotate, and the coating material discharged from the coating device 3 is spread over the entire upper surface of the workpiece. The surplus coating material is thrown out of the outer edge of the workpiece 6 and falls into the cavity of the paint receiving device, completing the collection of the coating material.

Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" herein are to be construed broadly, e.g., they may be fixed, removable, or integral; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The above is only a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and it should be understood by those skilled in the art that the present utility model includes but is not limited to the accompanying drawings and the description of the above specific embodiment. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.

Claims (10)

1. The spin coater comprises a frame (1) and a coating device (3) arranged on the frame (1), and is characterized by further comprising a paint receiving device (4) arranged on one side of the spraying direction of the coating device (3), wherein a cavity is formed in the paint receiving device (4); one side of the paint receiving device (4) far away from the coating device (3) is provided with a workpiece bearing device (5), the workpiece bearing device (5) is arranged on the frame (1), the workpiece bearing device (5) is used for bearing a workpiece (6), and the workpiece bearing device (5) can move to a position corresponding to an inlet (43) of the containing cavity of the paint receiving device (4).

2. The spin coater according to claim 1, wherein the paint receiving device (4) has a cylindrical shape, the paint receiving device (4) includes a side wall (44), a top plate (45) and a bottom plate (46), and the side wall (44), the top plate (45) and the bottom plate (46) together form the accommodating chamber; the top plate (45) is arranged at one end of the side wall (44) close to the coating device (3), and the bottom plate (46) is arranged at one end of the side wall (44) close to the workpiece bearing device (5); the coating device is characterized in that a coating hole (41) penetrating through the top plate (45) in the thickness direction is formed in the top plate (45), an extending hole (42) penetrating through the bottom plate (46) in the thickness direction is formed in the bottom plate (46), the coating hole (41) is communicated with the extending hole (42), an outlet of the coating device (3) faces the coating hole (41), an inlet (43) of the containing cavity is located between the coating hole (41) and the extending hole (42), and the workpiece bearing device (5) can move to the extending hole (42).

3. The spin coater according to claim 2, wherein the paint receiving means (4) further comprises a protrusion (47), the protrusion (47) being provided at an outer edge of the penetration hole (42) and extending toward the top plate (45), the protrusion (47) being directed toward an end surface of the top plate (45) and being spaced from the top plate (45) to form an inlet (43) of the cavity.

4. The spin coater according to claim 1, wherein the workpiece carrying device (5) comprises a suction cup (51), a carrying shaft (52), a rotary driving mechanism (53), a transmission mechanism (54) and an axial driving mechanism (55), the suction cup (51) is arranged at one side of the paint receiving device (4) away from the painting device (3), a first end of the carrying shaft (52) is fixedly connected with the suction cup (51), the carrying shaft (52) is arranged at one side of the suction cup (51) away from the paint receiving device (4), an output end of the rotary driving mechanism (53) is connected with an input end of the transmission mechanism (54), and an output end of the transmission mechanism (54) is connected with a second end of the carrying shaft (52) so as to drive the carrying shaft (52) to rotate around an axis of the carrying shaft (52).

5. The spin coater according to claim 4, wherein the axial driving mechanism (55) is disposed at the second end of the carrying shaft (52), and the axial driving mechanism (55) is configured to drive the suction cup (51) to reciprocate along the axial direction of the suction cup (51).

6. Spin coater according to claim 4, wherein the diameter of the suction cup (51) is a selected value between 80mm and 120 mm.

7. A spin coater according to claim 3, wherein the diameter of the penetration hole (42) is larger than the diameter of the coating hole (41).

8. The spin coater according to claim 1, wherein a limiting piece (7) is arranged on the frame (1), the limiting piece (7) comprises a screw rod sliding table (71), a limiting support (72), a limiting cylinder (73) and a limiting protrusion (74), the screw rod sliding table (71) can drive the limiting support (72) to move along the length direction of the screw rod sliding table (71), the limiting support (72) is arranged on the screw rod sliding table (71), the limiting support (72) is provided with the limiting cylinder (73) and the limiting protrusion (74), the limiting protrusion (74) protrudes from the limiting support (72) towards the coating device (3), and the limiting cylinder (73) can drive the limiting protrusion (74) to reciprocate along the protruding direction of the limiting protrusion (74).

9. The spin coater according to any one of claims 1 to 8, further comprising a transfer mechanism (2), wherein one end of the transfer mechanism (2) is connected to the upstream side of the spin coater and the other end is connected to the downstream side of the spin coater.

10. A precoating production line, characterized by comprising the spin coater according to any one of claims 1 to 9, and further comprising a stretching device arranged downstream of the spin coater, wherein the stretching device is used for stretching a workpiece coated by the spin coater.