Lead-free resistor full-automatic coating machine

Abstract

The utility model relates to the technical field of coating machines, and discloses a lead-free resistor full-automatic coating machine which comprises a conveying belt, a hollow clamping groove is formed in the conveying belt, a coating roller is arranged above the conveying belt, a drying unit is arranged on one side of the coating roller, a vertical plate is arranged on the other side of the coating roller, and an arc-shaped guide groove is formed in the front side of the vertical plate. A motor is installed on the rear side of the vertical plate. A motor drives a limiting plate to rotate in a reciprocating mode through a rotating shaft, and in the reciprocating rotation process of the limiting plate, a negative pressure suction cup connected with a limiting rod is overturned by 90 degrees under limiting of the limiting plate and an arc-shaped guide groove, so that the negative pressure suction cup can suck a resistor on a conveying belt and then move the resistor to the side face of a brushing roller; and then, the motor drives the limiting plate to rotate to the original position in a reciprocating mode, the negative pressure suction cup places the resistor back into the initial hollowed-out clamping groove again, the front face of the resistor is brushed along with continuous conveying of the conveying belt, and therefore brushing of the front face and the back face of the resistor is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, in particular to a full-automatic coating machine for leadless resistors. Background Art

[0002] Leadless resistors are a type of surface mount electronic component. As an important component of electronic components, they need to be coated during the processing. Under coating conditions, a thin film can be formed on their surface, thereby providing insulation, rust prevention and other protective functions. Therefore, coating of leadless resistors is an important processing step.

[0003] The leadless resistor coating machine is a device specially used for the production of leadless resistors. It belongs to the technical field of leadless resistor production equipment. The leadless resistor coating machine is mainly used to paint leadless resistors. It uses a series of automated processes such as feeding, painting, heating, etc. to achieve rapid painting and continuous production of resistors. This equipment can significantly improve production efficiency, reduce labor costs, and ensure the uniformity and quality stability of the paint.

[0004] When applying topcoat to leadless resistors, they are typically transported via a conveyor belt, where a coating unit coats the resistors during the process. However, this coating unit can only coat one side of the resistor, requiring the resistor to be recoated after changing sides, reducing coating efficiency. Therefore, those skilled in the art have provided a fully automatic coating machine for leadless resistors to address the issues raised in the background art. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides a fully automatic coating machine for leadless resistors to solve the problem that the coating unit can only coat one side of the resistor during coating, resulting in the resistor needing to be coated again after changing the side, which reduces the coating efficiency.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully automatic coating machine for leadless resistors, comprising a conveyor belt, a hollow card slot being provided on the conveyor belt, a coating roller being provided above the conveyor belt, a drying unit being provided on one side of the coating roller, and a vertical plate being provided on the other side of the coating roller, an arc-shaped guide groove being provided on the front side of the vertical plate, a motor being installed on the rear side of the vertical plate, a rotating shaft being driven and connected on the front side of the motor, the rotating shaft passing through the vertical plate, a limiting plate being installed on the front end of the rotating shaft, a positioning hole being provided on the vertical plate, a rotating sleeve being rotatably clamped on the positioning hole, a negative pressure suction cup being slidably inserted in the rotating sleeve, and a limiting rod being installed on one side of the negative pressure suction cup.

[0009] Preferably, the limiting rod passes through the limiting plate and is slidably connected with the arc-shaped guide groove. The limiting rod and the limiting plate are slidably connected, and the motor drives the limiting plate to rotate back and forth through the rotating shaft.

[0010] Preferably, the two ends of the arc-shaped guide groove are respectively a transverse groove and a longitudinal groove. Due to the transverse and longitudinal design of the two ends of the arc-shaped guide groove, combined with the limiting of the rotating sleeve, the negative pressure suction cup can be extended to a certain extent when rotating, so that the negative pressure suction cup can absorb the resistor on the conveyor belt and move to the side of the brush roller.

[0011] Preferably, the bottom side of the hollow card slot is hollow. After the resistor is placed, the resistor is brushed by a brushing roller. When the brushed resistor enters the drying unit, both the front and back sides can be dried at the same time.

[0012] Preferably, a support plate is provided below the brush roller, and the support plate is located on the inner side of the conveyor belt and is closely connected to the conveyor belt. The support plate can effectively support the brushing area below the brush roller to prevent the conveyor belt from deforming.

[0013] (3) Beneficial effects

[0014] Compared with the existing technology, the present invention provides a fully automatic coating machine for leadless resistors, which has the following beneficial effects:

[0015] Through the design, the motor drives the limit plate to rotate back and forth through the rotating shaft. During the reciprocating rotation of the limit plate, the negative pressure suction cup connected by the limit rod is flipped 90° under the limit of the limit plate and the arc guide groove, so that the negative pressure suction cup can suck the resistor on the conveyor belt and move it to the side of the brush roller, so as to preferentially paint the bottom side of the resistor. Afterwards, the motor drives the limit plate to rotate back and forth to its original position, and the negative pressure suction cup puts the resistor back into the original hollow slot. As the conveyor belt continues to convey, the front of the resistor is painted, thereby completing the painting of the front and back sides of the resistor. This structure solves the problem that the coating unit can only paint one side of the resistor during painting, resulting in the resistor needing to be painted again after changing the side, reducing the coating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a fully automatic coating machine for leadless resistors provided in an embodiment of the present application.

[0017] Figure 2 This is a structural schematic diagram of an arc-shaped guide groove in a fully automatic coating machine for leadless resistors provided in an embodiment of the present application.

[0018] Figure 3 This is a structural schematic diagram of a rotating sleeve in a fully automatic coating machine for leadless resistors provided in an embodiment of the present application.

[0019] In the figure: 1. Conveyor belt; 2. Hollow card slot; 3. Support plate; 4. Brush roller; 5. Drying unit; 6. Vertical plate; 7. Arc guide groove; 8. Positioning hole; 9. Negative pressure suction cup; 10. Limit rod; 11. Rotating sleeve; 12. Motor; 13. Rotating shaft; 14. Limit plate. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] This utility model provides a technical solution, a fully automatic coating machine for leadless resistors, please refer to Figure 1 , including a conveyor belt 1, a hollow card slot 2 is opened on the conveyor belt 1, a brush roller 4 is set above the conveyor belt 1, a drying unit 5 is set on one side of the brush roller 4, and a vertical plate 6 is set on the other side of the brush roller 4, please refer to Figure 2 、 Figure 3 An arc-shaped guide groove 7 is provided on the front side of the vertical plate 6, and a motor 12 is installed on the rear side of the vertical plate 6. A rotating shaft 13 is connected to the front side of the motor 12. The rotating shaft 13 passes through the vertical plate 6. A limiting plate 14 is installed at the front end of the rotating shaft 13. A positioning hole 8 is provided on the vertical plate 6. A rotating sleeve 11 is rotatably connected to the positioning hole 8. A negative pressure suction cup 9 is slidably inserted in the rotating sleeve 11, and a limiting rod 10 is installed on one side of the negative pressure suction cup 9.

[0022] See also Figure 2 、 Figure 3 The limiting rod 10 passes through the limiting plate 14 and slides with the arc-shaped guide groove 7. The limiting rod 10 slides with the limiting plate 14, and the motor 12 drives the limiting plate 14 to rotate back and forth through the rotating shaft 13. The two ends of the arc-shaped guide groove 7 are respectively a horizontal groove and a longitudinal groove. Due to the horizontal and longitudinal design of the two ends of the arc-shaped guide groove 7, combined with the limit of the rotating sleeve 11, the negative pressure suction cup 9 can be extended to a certain extent when rotating. Please refer to Figure 1 、 Figure 2, so that the negative pressure suction cup 9 can suck the resistor on the conveyor belt 1 and move it to the side of the brush roller 4. The bottom side of the hollow card slot 2 is hollow. After placing the resistor, the resistor is brushed by the brush roller 4. When the brushed resistor enters the drying unit 5, both the front and back sides can be dried at the same time. A support plate 3 is provided under the brush roller 4. The support plate 3 is located on the inner side of the conveyor belt 1 and is tightly connected to the conveyor belt 1. The support plate 3 can effectively support the brushing area under the brush roller 4 to prevent the conveyor belt 1 from deforming.

[0023] The practical fully automatic coating machine is composed of a conveyor belt 1, a coating roller 4 and a drying unit 5. A hollow card slot 2 is provided on the conveyor belt 1. The bottom of the hollow card slot 2 is hollow. After the resistor is placed, the resistor is coated by the coating roller 4. When the coated resistor enters the drying unit 5, both the front and back sides can be dried at the same time.

[0024] A vertical plate 6 is provided on the side of the brush roller 4 away from the drying unit 5, and an arc-shaped guide groove 7 is provided on the front side of the upper end of the vertical plate 6, and the two ends of the arc-shaped guide groove 7 are horizontal and longitudinal slide grooves. A motor 12 is installed on the rear side of the vertical plate 6, and a rotating shaft 13 connected to the front end of the motor 12 passes through the vertical plate 6. A limiting plate 14 is installed at the front end of the rotating shaft 13. A positioning hole 8 is provided on the vertical plate 6, and a rotating sleeve 11 is rotatably connected to the positioning hole 8. A negative pressure suction cup 9 is slidably inserted in the rotating sleeve 11, and a limiting rod 10 is installed on the rear side of the negative pressure suction cup 9. After passing through the limiting plate 14, the limiting rod 10 is slidably inserted into the arc-shaped guide groove 7;

[0025] When the conveyor belt 1 is stepping and conveying the resistor, the motor 12 drives the limit plate 14 to rotate back and forth through the rotating shaft 13, and in the process of the reciprocating rotation of the limit plate 14, the negative pressure suction cup 9 connected by the limit rod 10 is turned 90 degrees under the limit of the limit plate 14 and the arc guide groove 7. Due to the horizontal and vertical design of the two ends of the arc guide groove 7, combined with the limit of the rotating sleeve 11, the negative pressure suction cup 9 can be extended to a certain extent when rotating, so that the negative pressure suction cup 9 can After being sucked, the resistor moves to the side of the coating roller 4, so that the bottom side of the resistor is painted first. Then, the motor 12 drives the limit plate 14 to rotate back and forth to its original position, and the negative pressure suction cup 9 puts the resistor back into the original hollow slot 2. As the conveyor belt 1 continues to convey, the coating roller 4 paints the front of the resistor, thereby completing the painting of the front and back sides of the resistor. This structure solves the problem that the coating unit can only paint one side of the resistor during painting, resulting in the resistor needing to be painted again after changing the side, which reduces the coating efficiency.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] In this document, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly specified, ordinary technicians in this field can understand the specific meanings of the above terms in this utility model according to specific circumstances.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic coating machine for leadless resistors, comprising a conveyor belt (1), characterized in that: The conveyor belt (1) is provided with a hollow card slot (2), a brush roller (4) is provided above the conveyor belt (1), a drying unit (5) is provided on one side of the brush roller (4), a vertical plate (6) is provided on the other side of the brush roller (4), an arc-shaped guide groove (7) is provided on the front side of the vertical plate (6), a motor (12) is installed on the rear side of the vertical plate (6), a rotating shaft (13) is connected to the front side of the motor (12), a limiting plate (14) is installed at the front end of the rotating shaft (13), a positioning hole (8) is provided on the vertical plate (6), a rotating sleeve (11) is rotatably connected to the positioning hole (8), a negative pressure suction cup (9) is slidably inserted in the rotating sleeve (11), and a limiting rod (10) is installed on one side of the negative pressure suction cup (9).

2. The fully automatic coating machine for leadless resistors according to claim 1, characterized in that: The limiting rod (10) passes through the limiting plate (14) and is slidably plugged into the arc-shaped guide groove (7), and the limiting rod (10) is slidably plugged into the limiting plate (14).

3. The fully automatic coating machine for leadless resistors according to claim 1, characterized in that: The rotating shaft (13) passes through the vertical plate (6).

4. The fully automatic coating machine for leadless resistors according to claim 1, characterized in that: The two ends of the arc-shaped guide groove (7) are respectively in the shape of a transverse groove and a longitudinal groove.

5. The fully automatic coating machine for leadless resistors according to claim 1, characterized in that: The bottom side of the hollow card slot (2) is hollow.

6. The fully automatic coating machine for leadless resistors according to claim 1, characterized in that: A support plate (3) is provided below the coating roller (4), and the support plate (3) is located on the inner side of the conveyor belt (1) and is closely connected to the conveyor belt (1).

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