SMT code spraying limiting device

Abstract

The invention belongs to the technical field of circuit board processing, and discloses an SMT code spraying limiting device. The device comprises a main body table, a feeding assembly is installed on the main body table, the feeding assembly moves a PCB to the upper side of the main body table, an adsorption assembly is installed on the upper side of the main body table, the adsorption assembly places the PCB lifted by the feeding assembly on a limiting assembly, the limiting assembly fixes the PCB, the limiting assembly moves on the main body table, and a code spraying assembly is further installed on the main body table. A code spraying gun in the code spraying assembly faces the PCB on the limiting assembly, and the code spraying gun can spray codes on the PCB; the problem that in the prior art, deviation of the expected position occurs in the code spraying process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board processing, and particularly to an SMT inkjet coding limiting device. Background Art

[0002] Currently, during the process of PCB board processing, it is necessary to perform inkjet coding on the PCB board or quickly and accurately mount SMDs onto the PCB board. The above work is usually completed by an SMT mounter. During the inkjet coding process of the SMT, the inkjet coding device will vibrate, causing the PCB board placed on the spraying device to shake. After the inkjet coding is completed, the position of the inkjet coding will deviate from the preset position. At the same time, since the PCB board needs to be transported to the inkjet coding position of the SMT through equipment such as a conveyor belt before inkjet coding, the PCB board needs to be placed on the conveyor belt for transportation. The conveyor belt stops at the inkjet coding position, and there is no fixing device for the PCB board. At the same time, since the conveyor belt is made of a flexible material, the amplitude of vibration of the PCB board will increase during the inkjet coding process, and the conveyor belt itself will also have a small displacement, resulting in the placement position of the PCB board deviating from the preset position, causing deviation in the inkjet coding position and further reducing the accuracy of the inkjet coding. Summary of the Invention

[0003] The purpose of the present invention is to provide an SMT inkjet coding limiting device to solve the problem that the PCB board shakes on the conveyor belt and deviates from the expected position during the inkjet coding process in the prior art.

[0004] To achieve this purpose, the present invention adopts the following technical solutions: The present invention provides an SMT inkjet coding limiting device, including a main body table. An upper feeding component is installed on the main body table, and the upper feeding component moves the PCB board to the upper side of the main body table. An adsorption component is installed on the upper side of the main body table, and the adsorption component places the PCB board lifted by the upper feeding component on a limiting component. The limiting component fixes the PCB board, and the limiting component moves on the main body table. A coding component is also installed on the main body table, and the coding gun in the coding component faces the PCB board on the limiting component, and the coding gun can perform inkjet coding on the PCB board.

[0005] Preferably, the limiting component is installed under the adsorption component. The limiting component includes a chassis, and two groups of brackets are installed on the chassis. The brackets are respectively arranged on both sides of the PCB board. A driving motor is installed on the brackets, and a conveyor belt is wound around the output end of the driving motor. The PCB board is placed on the conveyor belt. A second telescopic cylinder is installed on the side of the bracket away from the PCB board. A second through hole is opened on the bracket, and the second telescopic cylinder drives the second telescopic rod to move. A U-shaped retaining piece is installed at the end of the second telescopic rod, and the U-shaped retaining piece abuts against the side of the PCB board.

[0006] Preferably, a fourth telescopic cylinder is mounted on the bracket, a fourth telescopic rod is mounted on the fourth telescopic cylinder, a top plate is mounted on the fourth telescopic rod, and the top plate abuts against the lower side of the PCB board.

[0007] Preferably, a third telescopic cylinder is installed on the bracket, the axis of the third telescopic rod on the third telescopic cylinder is parallel to the plane where the PCB board is located, and a crimping plate is installed on the third telescopic rod, and the crimping plate can be crimped on the upper side of the PCB board.

[0008] Preferably, a mobile motor is installed on the chassis, and the mobile motor is transmission-connected to the first screw. A fixed frame is installed on the chassis, one end of the first screw is rotatably installed in the fixed frame, the axis of the first screw is perpendicular to the conveying direction of the conveyor belt, the other end of the first screw is screwed in the bracket, and a sleeve rod is installed between the brackets, both ends of the sleeve rod are fixed to the brackets, and the sleeve rod is slidably sleeved in any group of the brackets through a sliding bearing.

[0009] Preferably, a slide rail is installed on the main platform, and the chassis is slidably sleeved on the slide rail. A second lead screw is rotatably installed on the main platform, and a socket block is screwed on the second lead screw, and the socket block is connected to the chassis.

[0010] Preferably, the inkjet coding assembly is mounted on a second U-shaped frame, and the second U-shaped frame is slidably mounted on the first track on the main platform on both sides, the first track is parallel to the moving direction of the conveyor belt, and a third screw is rotatably mounted on the second U-shaped frame, the third screw is perpendicular to the conveying direction of the conveyor belt, the inkjet coding assembly is screwed on the third screw, and the inkjet coding assembly is slidably mounted on the second track, and the third screw is screwed inside the second track.

[0011] Beneficial effect: The PCB board is fixed by the limiting component, and then the inkjet component is moved to the fixed PCB board. During the operation of the inkjet gun, the PCB board is fixed by the limiting component, so that the PCB board remains stable, which can make the inkjet position of the inkjet gun more accurate and improve the inkjet quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a main body diagram of the suction cup side of the SMT coding limit device of the present invention;

[0013] Figure 2 This is a side view of the coding gun of the SMT coding limit device of the present invention;

[0014] Figure 3 This is a side view of the main body of the SMT coding limiter of the present invention;

[0015] Figure 4 This is the main body diagram of the limit component of the present invention.

[0016] In the figure: 1. Main body platform; 2. PCB board; 3. Loading component; 4. Adsorption component; 5. Limit component; 51. Chassis; 52. Bracket; 53. Second telescopic cylinder; 54. U-shaped baffle; 55. Fourth telescopic cylinder; 56. Top plate; 57. Third telescopic cylinder; 58. Crimping plate; 59. Moving motor; 510. First lead screw; 511. Fixed frame; 512. Socket rod; 513. Sliding bearing; 514. Driving motor; 515. Conveyor belt; 6. Inkjet coding component; 61. Inkjet coding gun; 7. First U-shaped frame; 8. Second U-shaped frame; 9. Slide rail; 10. Second lead screw; 20. First track; 30. Third lead screw; 40. Second track. Detailed implementation manners

[0017] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only the parts related to the present invention are shown in the drawings, rather than all the structures.

[0018] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0019] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "beneath", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature is at a lower horizontal height than the second feature.

[0020] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0021] Under the prior art, during the spraying process of the PCB board, the four sides are not fixed. During the spraying process, the machine will vibrate. As a result, after the inkjet printer sprays on the PCB board, there will be an offset phenomenon, leading to errors in the inkjet position.

[0022] To solve the above problems, as Figures 1 to 4 shown, the present invention provides an SMT inkjet coding limiting device, which includes a main body table 1. An upper feeding component 3 is installed on the main body table 1. The upper feeding component 3 moves the PCB board 2 to the upper side of the main body table 1. An adsorption component 4 is installed on the upper side of the main body table 1. The adsorption component 4 places the PCB board 2 lifted by the upper feeding component 3 on the limiting component 5. The limiting component 5 fixes the PCB board 2. The limiting component 5 moves on the main body table 1. A coding component 6 is also installed on the main body table 1. The inkjet printer 61 in the coding component 6 faces the PCB board 2 on the limiting component 5, and the inkjet printer 61 can code on the PCB board 2.

[0023] The conveying component conveys the PCB board 2 onto the upper feeding component 3. The upper feeding component 3 transports the PCB board 2 to the adsorption component 4. The adsorption component 4 transfers the PCB board 2 to the limiting component 5. The limiting component 5 fixes the PCB board 2, enabling the PCB board 2 to withstand the vibration generated during the operation of the coding component 6, thereby improving the coding accuracy of the PCB board 2 and reducing the errors caused by vibration.

[0024] A limiting component 5 is installed under the adsorption component 4. The limiting component 5 includes a chassis 51. Two groups of brackets 52 are installed on the chassis 51. The brackets 52 are respectively arranged on both sides of the PCB board 2. A driving motor 514 is installed on the brackets 52. The output end of the driving motor 514 is wound with a conveyor belt 515. The PCB board 2 is placed on the conveyor belt 515. A second telescopic cylinder 53 is installed on the side of the bracket 52 away from the PCB board 2. The second telescopic cylinder 53 is in an inverted state. A second through hole is opened on the bracket 52. The second telescopic cylinder 53 drives the second telescopic rod to move. A U-shaped retaining piece 54 is installed at the end of the second telescopic rod. The U-shaped retaining piece 54 abuts against the side of the PCB board 2.

[0025] The PCB board 2 is placed on the conveyor belt 515, and U-shaped baffles 54 are installed on both sides of the conveying direction of the conveyor belt 515. The second telescopic rod is controlled to move by the second telescopic cylinder 53, so that the U-shaped baffle 54 can be moved up and down perpendicular to the plane of the PCB board 2. Before the PCB board 2 is placed on the conveyor belt 515, the second telescopic rod is extended, and the U-shaped baffle 54 is lowered. Then the PCB board 2 is placed on the conveyor belt 515, and then the position of the PCB board 2 is adjusted by the conveyor belt 515 so that the PCB board 2 can be between the U-shaped baffles 54 on both sides of the conveyor belt 515. Then the second telescopic rod is retracted, and the U-shaped baffle 54 is raised, so that the PCB board 2 is abutted by the U-shaped baffles 54 on both sides of the conveying direction of the conveyor belt 515, so as to limit the PCB board 2 and reduce the vibration of the PCB board 2 during the coding process. U-shaped baffles 54 are installed at both ends of the conveyor belts 515 on both sides.

[0026] A third telescopic cylinder 57 is installed on the bracket 52. The axis of the third telescopic rod on the third telescopic cylinder 57 is parallel to the plane where the PCB board 2 is located, and the axis of the third telescopic rod is perpendicular to the two groups of brackets 52. A crimping plate 58 is installed on the third telescopic rod. When the third telescopic rod is retracted under the control of the third telescopic cylinder 57, the crimping plate 58 will enter the area between the two groups of brackets 52, and the top plate 56 on the lower side will lift the PCB board 2 upward, and the crimping plate 58 will be crimped on the upper side of the PCB board 2. The crimping plate 58 and the top plate 56 are clamped on the upper and lower sides of the PCB board 2 to achieve the positioning of the PCB board 2 in the height direction, further reducing the shaking of the PCB board 2.

[0027] A fourth telescopic cylinder 55 is installed on the bracket 52, a fourth telescopic rod is installed on the fourth telescopic cylinder 55, a top plate 56 is installed on the fourth telescopic rod, and the top plate 56 abuts against the lower side of the PCB board 2, so that the PCB board 2 contacts the top plate 56 and is separated from the conveyor belt 515. During the operation of the inkjet gun 61, the shaking of the PCB can be reduced.

[0028] A mobile motor 59 is installed on the chassis 51, and the mobile motor 59 is transmission-connected to the first screw 510. A fixed frame 511 is installed on the chassis 51. One end of the first screw 510 is rotatably installed in the fixed frame 511. The axis of the first screw 510 is perpendicular to the conveying direction of the conveyor belt 515. The other end of the first screw 510 is screwed into the bracket 52. A sleeve rod 512 is installed between the brackets 52. The chassis 51 on both sides of the sleeve rod 512 is fixed. The sleeve rod 512 is slidably sleeved in any group of brackets 52 through a sliding bearing 513.

[0029] The moving motor 59 drives the first lead screw 510 to rotate through components such as crawler belts. The bracket 52 on the first lead screw 510 will move along the first lead screw 510. In this way, the distance between the two groups of brackets 52 can be adjusted. By adjusting the distance, it is possible to adapt to PCB boards 2 of different widths. At the same time, the two groups of brackets 52 can also clamp the PCB board 2 from the side, so that the PCB board 2 can be fixed from both sides of the brackets 52. By installing the socket rod 512, the movable bracket 52 will also move along the axis of the socket rod 512. The socket rod 512 can make the movable bracket 52 more stable, reduce the shaking amplitude, and avoid the displacement of the PCB board 2 caused by the above shaking.

[0030] The slide rail 9 is installed on the main body table 1. The chassis 51 is slidably sleeved on the slide rail 9. The second lead screw 10 is rotatably installed on the main body table 1. A socket block is screwed on the second lead screw 10. The socket block is connected to the chassis 51. The drive motor inside the main body table 1 can drive the second lead screw 10 to rotate, and then the socket block and the chassis 51 on the socket block can be moved. The chassis 51 can move to the lower side of the adsorption component 4 to receive the adsorbed PCB board 2, and the chassis 51 can also move to the lower side of the inkjet printer 61 along the slide rail 9.

[0031] The inkjet printing component 6 is installed on the second U-shaped frame 8. The two sides of the second U-shaped frame 8 are slidably installed on the first track 20 on the main body table 1. The first track 20 is parallel to the moving direction of the conveyor belt 515. The third lead screw 30 is rotatably installed on the second U-shaped frame 8. The third lead screw 30 is perpendicular to the conveying direction of the conveyor belt 515. The inkjet printing component 6 is screwed on the third lead screw 30. The inkjet printer 61 on the second U-shaped frame 8 moves along the first track 20 under the drive of the driving component. The driving component can include components such as a telescopic motor, so that the second U-shaped frame 8 can move along the first track 20. At the same time, the third lead screw 30 also rotates under the drive of the drive motor, so that the inkjet printer 61 moves along the axis of the third lead screw 30. At the same time, the inkjet printing component 6 is slidably installed on the second track 40 and moves through the linear motor on the second track 40. The second track 40 is perpendicular to the tabletop of the main body table 1. The third lead screw 30 is arranged inside the second track 40. Since the length directions of the third lead screw 30, the first track 20, and the second track 40 are perpendicular to each other in pairs, the inkjet printer 61 in the inkjet printing component 6 can freely move in the three-dimensional space on the upper side of the main body table 1, so that the inkjet printer 61 can move to the required position and the inkjet printing position can be adjusted flexibly.

[0032] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An SMT inkjet coding limit device, characterized in that, The invention comprises a main body platform (1), on which a loading component (3) is installed, the loading component (3) moves a PCB board (2) to the upper side of the main body platform (1), an adsorption component (4) is installed on the upper side of the main body platform (1), the adsorption component (4) places the PCB board (2) lifted by the loading component (3) on a limiting component (5), the limiting component (5) fixes the PCB board (2), the limiting component (5) moves on the main body platform (1), and a coding component (6) is also installed on the main body platform (1), a coding gun (61) in the coding component (6) faces the PCB board (2) on the limiting component (5), and the coding gun (61) can spray codes on the PCB board (2).

2. The SMT inkjet coding limit device according to claim 1, wherein The limiting assembly (5) is installed at the lower side of the adsorption assembly (4), and the limiting assembly (5) comprises a chassis (51). Two groups of brackets (52) are installed on the chassis (51), and the brackets (52) are respectively arranged on both sides of the PCB board (2). A transmission motor (514) is installed on the bracket (52), and a conveyor belt (515) is wound around the output end of the transmission motor (514). The PCB board (2) is placed on the conveyor belt (515). A second telescopic cylinder (53) is installed on the side of the bracket (52) away from the PCB board (2). A second through hole is opened on the bracket (52), and the second telescopic cylinder (53) drives the second telescopic rod to move. A U-shaped baffle (54) is installed at the end of the second telescopic rod, and the U-shaped baffle (54) abuts against the side of the PCB board (2).

3. The SMT inkjet coding limit device according to claim 2, characterized in that, A fourth telescopic cylinder (55) is mounted on the bracket (52), a fourth telescopic rod is mounted on the fourth telescopic cylinder (55), a top plate (56) is mounted on the fourth telescopic rod, and the top plate (56) abuts against the lower side of the PCB board (2).

4. The SMT inkjet coding limit device according to claim 2, wherein A third telescopic cylinder (57) is mounted on the bracket (52); the axis of a third telescopic rod on the third telescopic cylinder (57) is parallel to the plane where the PCB board (2) is located; a crimping plate (58) is mounted on the third telescopic rod; and the crimping plate (58) can be crimped onto the upper side of the PCB board (2).

5. The SMT inkjet coding limit device according to claim 2, characterized in that, A moving motor (59) is installed on the chassis (51), and the moving motor (59) is transmission-connected to a first lead screw (510). A fixing frame (511) is installed on the chassis (51), and one end of the first lead screw (510) is rotatably installed in the fixing frame (511). The axis of the first lead screw (510) is perpendicular to the conveying direction of the conveyor belt (515). The other end of the first lead screw (510) is screwed into the bracket (52). A sleeve rod (512) is installed between the brackets (52), and both ends of the sleeve rod (512) are fixed to the brackets (52). The sleeve rod (512) is slidably sleeved in any group of the brackets (52) through a sliding bearing (513).

6. The SMT inkjet coding position-limiting device according to claim 2, wherein, A slide rail (9) is installed on the main body table (1), the chassis (51) is slidably sleeved on the slide rail (9), a second lead screw (10) is rotatably installed on the main body table (1), a socket block is screwed on the second lead screw (10), and the socket block is connected to the chassis (51).

7. The SMT inkjet coding limit device according to claim 2, wherein The inkjet printing assembly (6) is installed on the second U-shaped frame (8), both sides of the second U-shaped frame (8) are slidably installed on the first track (20) on the main body table (1), the first track (20) is parallel to the moving direction of the conveyor belt (515), a third lead screw (30) is rotatably installed on the second U-shaped frame (8), the third lead screw (30) is perpendicular to the conveying direction of the conveyor belt (515), the inkjet printing assembly (6) is screwed on the third lead screw (30), the inkjet printing assembly (6) is slidably installed on the second track (40), and the third lead screw (30) is screwed inside the second track (40).

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