TWI671251B - Conveying device for conveying printed circuit board - Google Patents

Abstract

A circuit board conveying device includes a control device, a roller coating device, a clamping device, a telescopic device, and a lifting device. The roller coating device is capable of coating circuit boards. The control device can control the holding device to hold the circuit board. When the clamping device clamps the circuit board, the control device can control the lifting device to move, so that the clamping device moves the circuit board clamped by it in the longitudinal direction. When the circuit board held by the holding device is taken away by other transfer equipment, the control device will control the telescopic device and the lifting device to move, so that the holding device is retracted and moved downward to the roller. Location of coating device. Compared with the conventional circuit board transportation equipment, the circuit board transportation equipment of the present invention has relatively high efficiency.

Description

Circuit board conveying equipment

The invention relates to a conveying device, in particular to a circuit board conveying device.

The existing circuit board conveying equipment, especially the related circuit board conveying equipment suitable for use in vertical roll coating equipment, has the problem of poor effective performance. Specifically, in the existing circuit board conveying equipment, when conveying the circuit board coated by the vertical roller coating equipment, it must spend a lot of time waiting for the circuit board to be taken away by other equipment before clamping the next circuit board.

The main purpose of the present invention is to provide a circuit board conveying device, which is used to improve the problem of poor efficiency of the existing circuit board conveying device applied to a vertical roller coating device.

In order to achieve the above object, the present invention provides a circuit board conveying device, which includes: a transfer device, a control device, a roller coating device, a single clamping device, a telescopic device, and a lifting device. The transfer device includes a main body, a telescopic component, a plurality of clamping components, and a sensor. The main body is connected to the telescopic component, and a power source is provided in the main body. The power source can be controlled by the control device to cause the telescopic component to telescopically act; The clamping component is connected with the telescopic component, and multiple clamping components can act as the telescopic component expands and contracts; multiple clamping components can be controlled by the control device to clamp the circuit board; when the control device controls the telescopic component of the transfer device to act, When retracted to a predetermined position, the sensor will generate a control signal correspondingly. The control device can receive at least one control signal. The roller coating device can be controlled by the control device to move a circuit board in a longitudinal direction. And coat the circuit board. A single clamping device can be controlled by the control device to clamp the circuit board. The telescopic device is connected to the clamping device, and the telescopic device can be controlled by the control device to move the clamping device in a lateral direction. The lifting device is connected to the telescopic device, and the lifting device can be controlled by the control device to make the telescopic device move in the longitudinal direction. Wherein, when the control device controls the clamping device to clamp the circuit board coated by the roller coating device, so that the circuit board moves in the longitudinal direction and completely leaves the roller coating device, the control device controls the transfer device to operate so that The multiple clamping components clamp the circuit board, and the control device will control the clamping device to no longer clamp the circuit board, and the control device will control the telescopic device and the lifting device so that the clamping device retracts inward and moves downward to The position adjacent to the roller coating device; when the clamping device retracts inward and moves down to the position adjacent to the roller coating device, and the control device receives the control signal, the control device will control the telescopic device and the clamping device to operate, In order to make the clamping device extend outward and clamp another circuit board coated by the roller coating device.

In order to achieve the above object, the present invention provides a circuit board conveying device for holding a circuit board passing through a roller coating device. The circuit board conveying device includes a transfer device, a control device, and a single clamping device. , A telescopic device and a lifting device. The control device can receive at least one control signal. The transfer device includes a main body, a telescopic component, a plurality of clamping components, and a sensor. The main body is connected to the telescopic component, and a power source is provided in the main body. The power source can be controlled by the control device to cause the telescopic component to telescopically act; The clamping component is connected with the telescopic component, and multiple clamping components can act as the telescopic component expands and contracts; multiple clamping components can be controlled by the control device to clamp the circuit board; when the control device controls the telescopic component of the transfer device to act, When retracted to a predetermined position, the sensor will generate a control signal correspondingly. A single clamping device can be controlled by the control device to clamp the circuit board. The telescopic device is connected to the clamping device, and the telescopic device can be controlled by the control device to move the clamping device in a lateral direction. The lifting device is connected to the telescopic device, and the lifting device can be controlled by the control device to make the telescopic device move in the longitudinal direction. Wherein, when the control device controls the clamping device to clamp the circuit board coated by the roller coating device, the circuit board moves in the longitudinal direction and completely leaves the roller. When the device is wheel-coated, the control device controls the transfer device to actuate a plurality of clamping components to clamp the circuit board, and the control device will control the clamping device to no longer clamp the circuit board, and the control device will control the telescopic device And lifting device, so that the clamping device is retracted inward and moved down to a position adjacent to the roller coating device; when the clamping device is retracted inward and moved down to a position adjacent to the roller coating device, and the control device When receiving the control signal, the control device will control the telescopic device and the clamping device to make the clamping device extend outward and clamp another circuit board coated by the roller coating device.

The beneficial effect of the present invention may be that through the mutual cooperation of the telescopic device and the lifting device, while the circuit board is transferred to other areas by other related transfer devices, the clamping device can be retracted and moved downward to move to the roller The coating device can be used to prepare the next circuit board, so the efficiency of circuit board transportation can be greatly improved.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description of the present invention and the accompanying drawings, but the drawings are provided for reference and explanation only, and are not intended to limit the present invention.

1‧‧‧Circuit board conveying equipment

10‧‧‧Control device

20‧‧‧Roller coating device

21‧‧‧roller

30‧‧‧ clamping device

31‧‧‧ jaw assembly

32‧‧‧Position adjustment kit

321‧‧‧Slide

322‧‧‧ slider

40‧‧‧ Telescopic device

41‧‧‧ Ontology

42‧‧‧ Telescopic Rod

43‧‧‧Position sensor

431‧‧‧sensing signal

50‧‧‧Lifting device

51‧‧‧Slide

52‧‧‧ Slider

60‧‧‧ transfer device

61‧‧‧Subject

62‧‧‧ Telescopic components

63‧‧‧Slide

64‧‧‧Clamping components

65‧‧‧Sensor

651‧‧‧Control signal

B‧‧‧Circuit Board

C‧‧‧ rotation center

R1‧‧‧moving path

R2‧‧‧moving path

FIG. 1 is a schematic diagram of a circuit board conveying device according to the present invention.

FIG. 2 is a schematic block diagram of a circuit board conveying device according to the present invention.

FIG. 3 is a side view of the circuit board conveying device of the present invention.

FIG. 4 is a schematic diagram of the operation of the circuit board conveying equipment of the present invention.

Fig. 5 is a side view of the circuit board conveying device of the present invention.

FIG. 6 is a schematic diagram of the operation of the circuit board conveying equipment of the present invention.

FIG. 7 is a side view of the circuit board conveying device of the present invention.

FIG. 8 is a schematic diagram of the operation of the circuit board conveying equipment of the present invention.

FIG. 9 is a side view of the circuit board conveying device of the present invention.

FIG. 10 is a schematic diagram of the operation of the circuit board conveying equipment of the present invention.

FIG. 11 is a side view of the circuit board conveying device of the present invention.

FIG. 12 is a schematic diagram of the operation of the circuit board transportation equipment of the present invention.

FIG. 13 is a side view of the circuit board conveying device of the present invention.

14 is a top view of a circuit board conveying device and a schematic diagram of a moving path of a transfer device according to the present invention.

15 is a top view of a circuit board conveying device and another schematic diagram of a moving path of a transfer device according to the present invention.

In the following description, if you refer to a specific drawing or as shown in a specific drawing, it is only used to emphasize in the subsequent description, and most of the relevant content appears in the specific drawing, but not It is restricted to only specific drawings in this subsequent description.

Please refer to FIGS. 1 to 3 together. FIG. 1 is a schematic diagram of a circuit board conveying device of the present invention, FIG. 2 is a block diagram of a circuit board conveying device of the present invention, and FIG. 3 is a side view of the circuit board conveying device of the present invention. . The circuit board conveying device 1 is used for conveying a circuit board B. The circuit board conveying device 1 includes: a control device 10, a roller coating device 20, a clamping device 30, a telescopic device 40, and a lifting device 50. In various embodiments, the circuit board conveying device 1 may further include a transfer device 60.

The control device 10 is electrically connected to the roller coating device 20, the clamping device 30, the telescopic device 40, the lifting device 50, and the transfer device 60. The clamping device 30 is connected to the telescopic device 40, and the telescopic device 40 is connected to the lifting device 50. The holding device 30 can be controlled by the control device 10 to hold the circuit board B. The telescopic device 40 can be controlled by the control device 10 to move the clamping device 30 back and forth. The lifting device 50 can be controlled by the control device 10 to move the clamping device 30 up and down. The transfer device 60 can hold the circuit board B and carry the circuit board B to a predetermined area.

The control device 10 is, for example, various types of computer equipment, or may be various types of microprocessors. The roller coating device 20 can be controlled by the control device 10 to move the circuit board B in a longitudinal direction. In practical applications, the longitudinal direction may be the Z-axis direction of the coordinates as shown in FIG. 3, that is, the longitudinal direction. It can be a direction perpendicular to the horizontal plane. Specifically, the roller coating device 20 includes two rollers 21 and an ink supply module. The two rollers 21 are disposed to face each other, and the circuit board B can be sandwiched between the two rollers 21 to perform ink coating. In practical applications, it can be based on It is required to apply ink to one or both sides of the circuit board B. After the circuit board B is coated with ink, it can pass through the related devices such as the clamping device 30, the telescopic device 40, the lifting device 50, and the transfer device 60. It is transferred to the baking equipment, exposure equipment, and etching equipment to complete the circuit production on the circuit board B.

The holding device 30 can be controlled by the control device 10 to hold the circuit board B. In practical applications, the clamping device 30 includes a plurality of clamping jaw assemblies 31, which can be controlled to be closed or opened, thereby holding or releasing the circuit board B. The components included in each jaw assembly 31 may be designed according to requirements, and are not limited herein. The number of the clamping jaw assemblies 31 is at least two or more, but the specific number of the clamping jaw assemblies 31 may be designed according to the size, weight, etc. of the circuit board B.

In practical applications, the clamping device 30 may further include a position adjustment component 32. The position adjustment component 32 may include a slide rail 321 and a plurality of sliders 322, and the plurality of clamping jaw components 31 are connected to the plurality of sliders 322. The plurality of jaw assemblies 31 may be slidably disposed on the slide rail 321 through a plurality of sliders 322. The plurality of gripper assemblies 31 can be controlled by the control device 10 to move along the slide rail 321; in different applications, the plurality of gripper assemblies 31 can also be adjusted manually and manually on the rest of the slide rails 321. . Through the design of the position adjustment assembly 32, relevant personnel can adjust the positions of the plurality of clamping jaw assemblies 31 on the slide rail 321 according to the sizes of different circuit boards B, so that the plurality of clamping jaw assemblies 31 can stably clamp different sizes. Circuit board B.

The clamping device 30 is connected to the telescopic device 40. The manner in which the clamping device 30 is connected to the telescopic device 40 can be any method according to the requirements, for example, a method such as engaging and locking. The telescopic device 40 can be controlled by the control device 10 to cause the clamping device 30 to move in a lateral direction; in practical applications, the lateral direction may be the Y-axis direction of the coordinates as shown in FIG. 3, that is, the lateral direction may be Parallel to the horizontal plane. For example, the telescopic device 40 may include a body 41 and at least one telescopic rod 42. The body 41 is connected to the telescopic rod 42, and the ends of the plurality of telescopic rods 42 are opposite to the clamping device 30 opposite to the end connected to the body 41. connection. A power source is provided in the body 41. The power source is, for example, a component including a pneumatic cylinder, a hydraulic cylinder, or a servo motor, and the power The source energy is controlled by the control device 10 to actuate the telescopic rod 42 so that the clamping device 30 approaches or moves away from the lifting device 50 in the lateral direction, that is, the control device 10 can control the telescopic device 40 and the clamping device 30 in the lateral direction Move back and forth.

The lifting device 50 can be controlled by the control device 10 to move the telescopic device 40 in the longitudinal direction (such as the Z-axis direction of the coordinates shown in FIG. 3). The lifting device 50 may include, for example, a slide rail 51 and a slider 52. The slider 52 is slidably disposed on the slide rail 51, and the slider 52 is connected to the telescopic device 40. The control device 10 can control the slider 52 to move along the slide rail 51, thereby moving the telescopic device 40 and the clamping device 30 connected to the telescopic device 40 up and down in the longitudinal direction. The power source of the lifting device 50 may be, for example, a pneumatic cylinder, a hydraulic cylinder, a servo motor, or the like, and is not limited herein.

The transfer device 60 may include a main body 61, a telescopic component 62, a slide rail 63, and a plurality of clamping components 64. The main body 61 is connected to the telescopic assembly 62, and a power source such as a pneumatic cylinder, a hydraulic cylinder, a servo motor is provided in the main body 61, and the telescopic assembly 62 can be driven to telescopically move. The slide rail 63 is disposed at an end of the telescopic component 62 opposite to the main body 61. A plurality of clamping components 64 are slidably disposed on the slide rail 63, and each clamping component 64 can be controlled to move on the slide rail 63. In different applications, the body 41 of the transfer device 60 may be connected to only a plurality of clamping components 64, but not connected to the telescopic component 62 and the slide rail 63, that is, the transfer device 60 only has a clamping circuit board B Function; or, in different embodiments, the transfer device 60 may also have a telescopic component 62 but no slide rail 63. The transfer device 60 may be connected to different mobile devices according to requirements, such as various types of mechanical arms, and the control device 10 can transfer related equipment connected to the transfer device 60 to move the transfer device 60 to a predetermined area, or Yes to move to the next workstation.

Please refer to FIG. 4 and FIG. 5 together. FIG. 4 is a schematic diagram of the operation of the circuit board conveying device 1 of the present invention, and FIG. 5 is a side view of the circuit board conveying device 1 of the present invention. When the roller coating device 20 moves the circuit board B in the first direction (the Z axis of the coordinates shown in the figure), and one end of the circuit board B is exposed on one side of the two rollers 21, the control device 10 will control the lifting device 50 to move the clamping device 30 adjacent to the roller The position of the coating device 20 and the control device 10 will control the telescopic device 40 so that the clamping device 30 moves forward directly above the circuit board B to clamp the circuit board B. In practical applications, at least one sensor, such as an infrared sensor, may be provided around the roller coating device 20 to detect whether the circuit board B is exposed to the roller coating device 20, and the control device 10 may According to the sensing result of the sensor, the lifting device 50, the telescopic device 40 and the clamping device 30 are controlled to operate to clamp the circuit board B.

As shown in FIGS. 6 and 7, after the holding device 30 holds the circuit board B, the control device 10 controls the lifting device 50 to move the holding device 30 in a direction away from the roller coating device 20 in the first direction. Move up until the circuit board B completely leaves the roller coating device 20. In practical applications, the control device 10 controls the lifting device 50 to operate so that when the circuit board B moves in the first direction, the control device 10 may control the roller coating device 20 to operate synchronously, or the control device 10 may control the roller coating The cloth device 20 does not push the circuit board B, and the two rollers 21 only roll as the circuit board B moves.

As shown in FIGS. 8 and 9, when the control device 10 controls the lifting device 50 and the circuit board B held by the holding device 30 completely leaves the roller coating device 20, the control device 10 controls the transfer device 60 clamping circuit board B. In specific applications, a sensor may be provided around the roller coating device 20, which may be used to determine whether the circuit board B completely leaves the roller coating device 20. For example, the sensor may be any optical cover. Break sensor, but not limited to this. The control device 10 may control the transfer device 60 to operate when the circuit board B completely leaves the roller coating device 20 according to a result sensed by the sensor.

As shown in FIG. 10 and FIG. 11, when the transfer device 60 is holding the circuit board B, the control device 10 will control the holding device 30 to no longer hold the circuit board B, and at this time, the circuit board B will be held only by the transfer device. 60 clamps. In specific applications, the clamping device 30 and the transfer device 60 may be respectively provided with multiple sensors, and the control device 10 can determine whether the clamping device 30 and the transfer device 60 are based on the sensors. The circuit board B is correctly clamped, so that it can be ensured that the control device 10 is correctly positioned on the transfer device 60. When the circuit board B is clamped, the clamping device 30 is controlled to stop clamping the circuit board B.

In practical applications, when the clamping device 30 no longer clamps the circuit board B, the control device 10 may control the transfer device 60 to move toward or away from the roller coating device 20, and the control device 10 may be a control displacement The telescoping assembly 62 of the loading device 60 is actuated so that the clamping assembly 64 is retracted inward and away from directly above the roller coating device 20 and away from the clamping device 30. Thus, the control device 10 controls the transfer device 60 to perform subsequent operations. During the operation, collision with the holding device 30 is unlikely to occur.

As shown in FIGS. 10 to 13, after the control device 10 controls the transfer device 60 to clamp the circuit board B, the control device 10 controls the telescopic device 40 to move the clamping device 30 inward (that is, closer to the lifting device). 50 direction), and the holding device 30 is separated from the path moved when the circuit board B is held by the holding device 30 (that is, directly away from the roller coating device 20).

After the clamping device 30 leaves the roller coating device 20 directly above, the control device 10 will control the lifting device 50 to move the clamping device 30 downward (that is, move toward the roller coating device 20) to It moves to the position which can hold another circuit board B conveyed by the roller coating apparatus 20. While the control device 10 controls the telescopic device 40 and the lifting device 50 to operate to move the clamping device 30 to a position adjacent to the roller coating device 20, the control device 10 operates the control transfer device 60 to move the circuit board B Carry to a predetermined area.

As shown in FIGS. 3 and 13, in different embodiments, the transfer device 60 may further include a sensor 65. When the control device 10 controls the telescopic component 62 to move and retract to a predetermined position, the sensor 65 will generate a control signal 651 correspondingly. When the control device 10 receives the control signal 651, the control device 10 activates the control telescopic device 40 and the clamping device 30 so that the clamping device 30 extends outward and clamps the circuit board B coated by the roller coating device 20 In this way, when the clamping device 30 clamps another circuit board B and moves upward, collision with the transfer device 60 and the circuit board B held by the clamping device 30 can be avoided.

As shown in FIG. 3, relatively, the telescopic device 40 may also include a sense of position. 测 器 43。 Tester 43. The position sensor 43 is electrically connected to the control device 10. When the clamping device 30 is retracted to a predetermined position as the telescopic device 40 is actuated, the position sensor 43 will generate a sensing signal 431 correspondingly. When the control device 10 receives the sensing signal 431, the control device 10 will control the lifting device 50 is operated to move the holding device 30 in the longitudinal direction to a position adjacent to the roller coating device 20, thereby ensuring that the holding device 30 does not fall with the transfer device 60 and the circuit board B held by the holding device 30 when it is lowered. Collision.

According to the above, simply, when the control device 10 controls the holding device 30 to hold the circuit board B, and the circuit board B is completely separated from the roller coating device 20, the control device 10 controls the transfer device 60 to hold the circuit Then, the control device 10 will control the clamping device 30 to no longer clamp the circuit board B, and the control device 10 will control the telescopic device 40 and the lifting device 50 to move the clamping device 30 inward and downward. At the same time, the control device 10 will control the transfer device 60 to transfer the circuit board B to other predetermined areas.

Please refer to FIG. 14 and FIG. 15 together. FIG. 14 is a top view of the circuit board conveying device 1 of the present invention. The imaginary line in FIG. 14 shows the moving path R1 of the transfer device 60. FIG. 14 shows the present invention. A top view of the circuit board conveying device 1, the imaginary line in FIG. 14 shows another moving path R2 of the transfer device 60.

As shown in FIG. 14, in one embodiment, after the control device 10 controls the transfer device 60 to clamp the circuit board B, the control device 10 may control the transfer device 60 to first face the direction opposite to the clamping device 30 (that is, The Y axis of the coordinates shown in the figure) is moved, and then rotated 180 degrees according to requirements (for example, the transfer device 60 may be rotated around the rotation center C shown in the figure), and then the coordinates shown in the figure are followed. Y axis direction. Through the design of such a moving path R1, a person concerned can stand on the periphery of the transfer device 60 to directly see whether the circuit board B held by the transfer device 60 has a defect. As shown in FIG. 15, in another embodiment, the control device 10 may also control the transfer device 60 to clamp the circuit board B and then directly move in a direction opposite to the clamping device 30, but the transfer device 60 does not perform Spin job.

In summary, the circuit board conveying device 1 of the present invention passes through the clamping device 30, The cooperation of the lowering device 50 and the telescopic device 40 can move to the position adjacent to the roller coating device 20 when the circuit board B completely leaves the roller coating device 20 and is transferred to the other area by the transfer device 60. , And can be ready to clamp the next circuit board B or can directly clamp the next circuit board B.

The above are only the preferred and feasible embodiments of the present invention, and thus do not limit the patent scope of the present invention. Therefore, any equivalent technical changes made by using the description and drawings of the present invention are included in the protection scope of the present invention.

Claims (7)

A circuit board conveying device includes a transfer device including a main body, a telescopic component, a plurality of clamping components, and a sensor. The main body is connected to the telescopic component, and a power is disposed in the main body. The power source can be controlled by a control device to cause the telescopic component to telescopically move; a plurality of the clamping components are connected to the telescopic component, and a plurality of the clamping components can follow the telescopic component; Telescopic action; a plurality of the clamping components can be controlled by the control device to clamp a circuit board; when the control device controls the telescopic components of the transfer device to act and retract to a predetermined position, the The sensor will generate a control signal correspondingly; the control device can receive the control signal; a roller coating device can be controlled by the control device to move the circuit board in a longitudinal direction, and Coating the circuit board; a single clamping device that can be controlled by the control device to clamp the circuit board; a telescopic device that is connected to the clamping device, the telescopic device can Accept The control device controls to make the clamping device move in a lateral direction; a lifting device is connected to the telescopic device, and the lifting device can be controlled by the control device to make the telescopic device along the Moving in a longitudinal direction; wherein, when the control device controls the holding device to hold the circuit board coated by the roller coating device, the circuit board moves in the longitudinal direction and completely leaves the circuit board When the roller coating device is described, the control device will control the movement of the transfer device so that a plurality of the clamping components clamp the circuit board, and the control device will control the clamping device not to The circuit board is further clamped, and the control device controls the telescopic device and the lifting device, so that the clamping device is retracted inward and moved downward to a position adjacent to the roller coating device ; When the clamping device retracts inward and moves down to a position adjacent to the roller coating device, and the control device receives the control signal, the control device will control the telescopic device and all Narrative Actuator means to cause said clamping means and extending outwardly through the other clamping circuit board after application of the coating apparatus of the roller. The circuit board conveying device according to claim 1, wherein the clamping device includes a position adjustment component and a plurality of gripper components, the position adjustment component includes a slide rail, and the plurality of gripper components are slidable The ground is provided on the slide rail, and each of the jaw assemblies can be controlled to move on the slide rail. The circuit board conveying device according to claim 1, wherein the telescopic device includes a position sensor, and the position sensor is electrically connected to the control device; when the clamping device follows the telescopic device When the actuator is retracted to a predetermined position, the position sensor will generate a sensing signal correspondingly. When the control device receives the sensing signal, it will control the lifting device to operate so that the clamp The device moves in the longitudinal direction to a position adjacent to the roller coating device. The circuit board conveying device according to claim 1, wherein the transfer device further includes a slide rail, and the slide rail of the transfer device is disposed at an end of the telescopic component opposite to the main body, and more Each of the clamping components is slidably disposed on the slide rail of the transfer device, and each of the clamping components can be controlled to move on the slide rail of the transfer device. A circuit board conveying device is used for clamping a circuit board passing through a roller coating device. The circuit board conveying device includes a transfer device including a main body, a telescopic component, a plurality of clamping components, and A sensor, wherein the main body is connected to the telescopic component, and a power source is disposed in the main body, and the power source can be controlled by a control device to cause the telescopic component to telescopically operate; a plurality of the clamping components and The telescopic components are connected, and a plurality of the clamping components can be telescopically operated with the telescopic components; a plurality of the clamping components can be controlled by the control device to clamp the circuit board; when the control When the device controls the telescopic component of the transfer device to actuate and retract to a predetermined position, the sensor will generate a control signal correspondingly; the control device can receive the control signal; a single clamping device , Which can be controlled by the control device to clamp the circuit board; a telescopic device which is connected to the clamping device, and the telescopic device can be controlled by the control device so that the clamping device along Lateral movement; a lifting device connected to the telescopic device, the lifting device can be controlled by the control device to make the telescopic device move in a longitudinal direction; wherein when the control device controls the clamp When the holding device clamps the circuit board coated by the roller coating device and moves the circuit board in the longitudinal direction and completely leaves the roller coating device, the control device controls the The transfer device operates to cause a plurality of the clamping components to clamp the circuit board, and the control device will control the clamping device to no longer clamp the circuit board, and the control device will Controlling the telescopic device and the lifting device so that the clamping device retracts inward and moves downward to a position adjacent to the roller coating device; when the clamping device retracts inward and moves downward To a position adjacent to the roller coating device, and when the control device receives the control signal, the control device controls the telescopic device and the gripping device to operate, so that the gripping device faces Outreach Holding another circuit board after the roller by coating a coating apparatus. The circuit board conveying device according to claim 5, wherein the clamping device includes a position adjustment component and a plurality of gripper components, the position adjustment component includes a slide rail, and the plurality of gripper components are slidable Ground is provided on the slide rail, and a plurality of the jaw assemblies can be controlled by the control device to move relative to the slide rail. The circuit board conveying device according to claim 5, wherein the telescopic device includes a position sensor, and the position sensor is electrically connected to the control device; when the clamping device follows the telescopic device When the actuator is retracted to a predetermined position, the position sensor will generate a sensing signal correspondingly. When the control device receives the sensing signal, it will control the lifting device to operate so that the clamp The device moves in the longitudinal direction to a position adjacent to the roller coating device.