阅读说明：本技术 一种用于电路板加工的丝印设备 (A silk screen printing equipment for circuit board processing ) 是由 孙永光 于 2019-11-29 设计创作，主要内容包括：本发明公布了一种用于电路板加工的丝印设备,它包括底座,所述底座上端通过立柱与工作台连接,所述工作台上端中部阵列设置有托物柱,所述工作台上以丝印区为轴环形阵列设置有推动装置,所述推动装置包括上下两端开放的长条孔以及于长条孔内滑动的滑动板,所述滑动板上端设置有可水平调节的推板,所述滑动板下端铰接有连杆,所述连杆下端与升降座铰接；所述工作台上端间隔设置有支撑柱,所述支撑柱上端设置有顶板,所述顶板上设置有升降气缸,所述升降气缸的活塞杆向下穿过顶板与支架连接,所述支架上有夹持装置。本发明的目的是提供一种用于电路板加工的丝印设备,能够快速固定电路基板,同时自动更换丝印面。(The invention discloses a silk-screen printing device for processing a circuit board, which comprises a base, wherein the upper end of the base is connected with a workbench through an upright post, an object supporting post is arranged in the middle of the upper end of the workbench in an array manner, a pushing device is arranged on the workbench in a manner of taking a silk-screen printing area as a shaft annular array and comprises a long-strip hole with the upper end and the lower end open and a sliding plate sliding in the long-strip hole, a push plate capable of being horizontally adjusted is arranged at the upper end of the sliding plate, a connecting rod is hinged to the lower end of the sliding plate, and the lower end of the connecting rod is; the support column is arranged at the upper end of the workbench at intervals, a top plate is arranged at the upper end of the support column, a lifting cylinder is arranged on the top plate, a piston rod of the lifting cylinder penetrates through the top plate downwards to be connected with the support, and a clamping device is arranged on the support. The invention aims to provide a silk-screen printing device for processing a circuit board, which can quickly fix a circuit substrate and automatically replace a silk-screen printing surface.)

1. A silk-screen printing device for processing a circuit board comprises a base (1) and is characterized in that, the upper end of the base (1) is connected with the workbench (3) through the upright post (2), a silk-screen area (4) is arranged in the middle of the upper end of the workbench (3), object supporting columns (5) are arranged on the upper end of the workbench (3) in the silk-screen area (4) in an array manner, the workbench (3) is provided with a pushing device by taking the silk screen printing area as a shaft annular array, the pushing device comprises a long hole (6) with the upper end and the lower end open and a sliding plate (7) sliding in the long hole (6), a push plate (10) moving along the length direction of the sliding plate (7) is arranged on the sliding plate, the lower end of the sliding plate (7) is hinged with a connecting rod (11), the lower end of the connecting rod (11) is hinged with a lifting seat (12), the lifting seat (12) and the silk-screen area (4) are coaxially arranged and reciprocate in the vertical direction; workstation (3) upper end interval is provided with support column (13), support column (13) upper end is provided with roof (14), be provided with lift cylinder (15) on roof (14), the piston rod of lift cylinder (15) passes roof (14) downwards and is connected with support (16), be provided with the fixture that can overturn on support (16).

2. The screen printing equipment for processing the circuit board as claimed in claim 1, wherein the upper end of the sliding plate (7) is connected with a mounting plate (9) through a spring (8), and a push plate (10) is arranged at the upper end of the mounting plate (9).

3. The silk-screen printing equipment for processing the circuit board as claimed in claim 1, wherein a motor (17) is arranged at the upper end of the base (1), an output shaft of the motor (17) is in transmission connection with a vertically arranged screw rod (18), and the screw rod (18) is in threaded connection with the lifting seat (12).

4. The screen printing device for processing the circuit board as claimed in claim 2, wherein the base (1) is provided with guide posts (19), and the guide posts (19) penetrate through the lifting base (12).

5. The screen printing equipment for processing the circuit board as claimed in claim 1, wherein a screw rod (20) is arranged at the upper end of the mounting plate (9), the screw rod (20) passes through a kidney-shaped hole (21) in the push plate (10), and a lock nut (22) is connected to the screw rod (20) in a threaded manner above the push plate (10).

6. The screen printing device for processing the circuit board as claimed in claim 1, wherein the clamping device comprises a pushing cylinder (23) arranged on the bracket (16), a rotary table (24) is arranged on a piston rod of the pushing cylinder (23), and a pneumatic finger (25) is arranged on the rotary table (24).

7. The screen printing device for processing the circuit board as claimed in claim 1, wherein a horizontal sliding groove (26) is arranged on the side wall of the elongated hole (6), and a sliding key (27) matched with the sliding groove (26) is arranged on the outer wall of the sliding plate (7).

8. A screen printing device for processing circuit boards according to claim 7, wherein the sliding key (27) is provided with a roller (28).

Technical Field

The invention relates to the field of circuit board processing, in particular to a silk-screen printing device for processing a circuit board.

Background

The electronic components need to use a large number of circuit boards, in order to facilitate subsequent processes such as assembly and the like, names, position frames and the like of parts need to be marked on the circuit boards, the conventional marking process adopts a silk-screen technology to print required marking patterns, character codes and the like on a base plate, but the circuit base plate is thinner and the end surface of the circuit base plate is a plane compared with other products, so that the base plate cannot be fixed by adopting a common positioning boss and groove matching mode, the existing mode is that a datum line and a positioning column are set on a workbench before printing, then an operator carries out silk-screen printing after the base plate is placed on the workbench according to the datum, but the efficiency is low and slight difference easily occurs in the silk-screen position of the base plate in the same batch because the operator needs to manually align each base plate before silk-screen printing; meanwhile, the circuit board is very difficult to take up due to the fact that the circuit board is thin, and the circuit board is very troublesome to replace the silk-screen surface and the silk-screen printing plate when being placed at the upper end of the horizontal workbench.

Disclosure of Invention

The invention aims to solve the problems and provides a silk-screen printing device for processing a circuit board, which can quickly fix a circuit substrate and automatically replace a silk-screen printing surface.

In order to realize the purpose, the invention adopts the technical scheme that: the pushing devices arranged on the periphery of the base plate move simultaneously to ensure that the position of the base plate is fixed during the same batch of production, and the pushing devices are arranged in a central annular array of the workbench for realizing the simultaneous movement of the pushing devices; the pushing device comprises a strip hole arranged on the workbench in a penetrating manner and a sliding plate sliding in the strip hole, in order to enable the sliding plate to slide in the horizontal direction, the lower end of the sliding plate is hinged with a connecting rod, the lower end of the connecting rod is hinged with a lifting seat, the lifting seat is pushed by an oil cylinder, a motor and the like to reciprocate in the vertical direction, the lifting seat is arranged on a base below the workbench, and in order to ensure that the sliding plate moves simultaneously, the lifting seat and the workbench are coaxially arranged; meanwhile, in order to adapt to substrates of different specifications and adjust the substrates according to actual conditions, a horizontally adjustable push plate is arranged above the sliding plate, and the upper end surface of the push plate is higher than that of the workbench; in order to automatically replace the silk-screen surface, supporting columns are arranged at the upper end of the workbench at intervals, a top plate is arranged at the upper end of each supporting column, a support below the top plate is pushed to reciprocate through a lifting cylinder arranged on the top plate so as not to influence normal silk-screen printing and ensure that a circuit board cannot collide with the workbench when rotating, and a clamping mechanism arranged on the support is utilized to clamp and rotate the circuit board; when the clamping device clamps the circuit board, the upper end face and the lower end face of the circuit board need to be clamped, so that a screen printing area is arranged in the middle of the upper end of the workbench, a plurality of object supporting columns are arranged in the screen printing area in an array mode, the circuit board is placed at the upper ends of the object supporting columns, a certain distance is reserved between the lower end face of the circuit board and the upper end face of the workbench, the clamping device can work conveniently, and meanwhile the object supporting columns can be arranged as many as possible to avoid the circuit board from overturning.

Further, when the support is too wide or the support is installed near the push plate, in order to prevent the push plate from interfering with the descent of the support, the push plate is installed on the installation plate, and a spring is arranged between the installation plate and the sliding plate.

Furthermore, in order to accurately control the movement of the lifting seat, a motor is arranged at the upper end of the base, an output shaft of the motor is in transmission connection with a vertically arranged screw rod, and the screw rod is in threaded connection with the lifting seat.

Furthermore, a guide post is arranged on the base and penetrates through the lifting seat, so that the lifting seat can be lifted stably.

Further, in order to adjust and fix the position of the push plate, the upper end of the mounting plate is provided with a screw rod, the screw rod penetrates through a waist-shaped hole in the push plate, a locking nut is connected to the screw rod in a threaded mode above the push plate, and the outer diameter of the nut of the locking nut is larger than the inner diameter of the waist-shaped hole.

Further, in order to realize the circuit board clamping and the circuit board rotation, the clamping device comprises a rotary table and a pneumatic finger, the pneumatic finger is arranged on one side of the circuit board, the rotary table is driven by an electric motor, an oil cylinder and the like, the rotary table and the pneumatic finger are driven by a pushing cylinder to horizontally reciprocate, and the pushing cylinder is horizontally arranged on the support.

Further, when the lifting seat is lifted up and down, in order to ensure that the sliding plate can horizontally slide and is not lifted together with the lifting seat, a horizontal sliding groove is arranged on the side wall of the elongated hole, and a sliding key matched with the sliding groove is arranged on the outer wall of the sliding plate; or a limiting plate can be arranged on the sliding plate and arranged at the upper end and the lower end of the workbench to prevent the sliding plate from being separated from the strip hole.

Further, the sliding key is provided with a roller to reduce friction.

The invention has the beneficial effects that: the pushing devices are arranged in an annular array at the center of the workbench, and the lifting seat which pulls the pushing devices to move horizontally is coaxial with the center of the workbench, so that the sliding plates around the circuit boards are driven to move together by the connecting rods hinged on the sliding plates when the lifting seat is lifted up and down, and the circuit boards produced in the same batch are all positioned at the same position during silk-screen printing; all sliding plates are drawn by one lifting seat, so that the driving structure is simplified on the premise of ensuring that the circuit boards are located at the same position.

1. The push plate for pushing the circuit board can be adjusted in position along the sliding plate, so that the adjustment can be carried out according to the actual production condition.

2. After the circuit board was kept away from to the push pedal, carousel and pneumatic finger moved to the circuit board under the drive that promotes the cylinder, and pneumatic finger presss from both sides the circuit board afterwards, and then lift cylinder drive support rises, and then carousel work to the upper and lower face that makes the circuit board is changed, and after the change was accomplished, the support descends and resets, and pneumatic finger loosens the circuit board and keeps away from the circuit board under the drive that promotes the cylinder, thereby automatic more silk screen printing face.

Drawings

FIG. 1 is a schematic top view of a worktable.

Fig. 2 is a schematic view of the assembly structure of the push plate and the sliding plate.

FIG. 3 is a schematic side view of the present invention.

Fig. 4 is a schematic view of the structure of the sliding plate and the workbench.

The text labels in the figures are represented as: 1. a base; 2. a column; 3. a work table; 4. a silk-screen area; 5. a supporting column; 6. a strip hole; 7. a sliding plate; 8. a spring; 9. mounting a plate; 10. pushing the plate; 11. a connecting rod; 12. a lifting seat; 13. a support pillar; 14. a top plate; 15. a lifting cylinder; 16. a support; 17. a motor; 18. a screw rod; 19. a guide post; 20. a screw; 21. a kidney-shaped hole; 22. a lock nut; 23. a push cylinder; 24. a turntable; 25. a pneumatic finger; 26. a chute; 27. a sliding key; 28. and a roller.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

As shown in fig. 1 to 4, the specific structure of the present invention is: the device comprises a base 1, wherein the upper end of the base 1 is connected with a workbench 3 through a stand column 2, a silk screen area 4 is arranged in the middle of the upper end of the workbench 3, object supporting columns 5 are arranged on the upper end of the workbench 3 in an array manner in the silk screen area 4, pushing devices are arranged on the workbench 3 in an array manner by taking the silk screen area as a shaft annular array, in the embodiment, four pushing devices are arranged, the included angle between every two adjacent pushing devices is a right angle, so that the pushing devices can be in contact with the side walls of a rectangular circuit board in four directions of up, down, left and right, in the horizontal direction, the pushing devices comprise strip holes 6 with the upper and lower ends open and sliding plates 7 sliding in the strip holes 6, a push plate 10 is arranged at the upper end of each sliding plate 7, the lower end face of each push plate 10 is higher than the upper end face of the workbench 3, the upper end face of each push plate 10 is higher, when the push plate 10 is closest to the screen printing area, a certain distance is required to be kept away from the outermost object supporting column so as to facilitate the work of a rear clamping mechanism, the lower end of the sliding plate 7 is hinged with a connecting rod 11, the lower end of the connecting rod 11 is hinged with a lifting seat 12, and the lifting seat 12 and the screen printing area 4 are coaxially arranged and reciprocate in the vertical direction; support columns 13 are arranged at the upper end of the workbench 3 at intervals, a top plate 14 is arranged at the upper end of each support column 13, a lifting cylinder 15 is arranged on each top plate 14, a piston rod of each lifting cylinder 15 penetrates through the top plate 14 downwards to be connected with a support 16, and a clamping mechanism capable of being turned is arranged on each support 16.

Preferably, as shown in fig. 2, the upper end of the sliding plate 7 is connected with a mounting plate 9 through a spring 8, and the upper end of the mounting plate 9 is provided with a push plate 10.

Preferably, as shown in fig. 3, a motor 17 is disposed at the upper end of the base 1, an output shaft of the motor 17 is in transmission connection with a vertically disposed screw rod 18, the screw rod 18 is in threaded connection with the lifting seat 12, and in order to ensure the stability of the screw rod 18, the upper end of the screw rod 18 is connected with a bearing seat at the lower end of the working table 3.

Preferably, as shown in fig. 3, a guide post 19 is disposed on the base 1, the guide post 19 passes through the lifting base 12, and the upper end of the guide post 19 is connected to the lower end of the working platform 3.

Preferably, as shown in fig. 2, a screw 20 is disposed at the upper end of the mounting plate 9, the screw 20 passes through a kidney-shaped hole 21 on the push plate 10, a lock nut 22 is connected to the screw 20 above the push plate 10 by a thread, and the kidney-shaped hole 21 is disposed along the length direction of the elongated hole 6 where the kidney-shaped hole is located.

Preferably, as shown in fig. 3, the clamping device includes a pushing cylinder 23 disposed on the bracket 16, a rotating disc 24 is disposed on a piston rod of the pushing cylinder 23, a pneumatic finger 25 is disposed on the rotating disc 24, and fixing plates are disposed between the piston rod of the pushing cylinder 23 and the rotating disc 24, and between the rotating disc 24 and the pneumatic finger 25.

Preferably, as shown in fig. 3 and 4, a horizontal sliding groove 26 is provided on a side wall of the elongated hole 6, and a sliding key 27 adapted to the sliding groove 26 is provided on an outer wall of the sliding plate 7.

Preferably, as shown in fig. 4, the sliding key 27 is provided with a roller 28, and the roller 23 contacts with the inner wall of the sliding groove 26.

The specific using process is as follows: an operator places the circuit board on the upper end of the object supporting column 5, keeps four edges of the circuit board and the corresponding side walls of the push plate 10 basically horizontal when placing the circuit board, and only needs to keep an included angle between the four edges and the corresponding side walls of the push plate 10 excessively large, then the lifting seat descends, and the push plate 10 is driven to move towards the circuit board through the traction of the connecting rod 11 until the push plates 10 on the periphery of the circuit board are all in horizontal contact with the side walls of the circuit board, so that the circuit board; and covering the silk screen plate on the circuit board for silk screen printing.

After the silk screen printing is finished, taking away the silk screen plate, lifting the lifting seat 12, driving the push plate 10 to be far away from the circuit board through the traction of the connecting rod 11, and taking away the circuit board if the silk screen printing is not required to be carried out on the reverse side of the circuit board; if the reverse side of the circuit board needs to be subjected to silk-screen printing, the lifting cylinder 15 drives the support 16 to descend until the pneumatic fingers 25 are located on one side of the circuit board, then the pushing cylinder 23 pushes the pneumatic fingers 25 to move towards the circuit board so that the pneumatic fingers clamp the circuit board, then the support 16 ascends, then the turntable 24 works so that the upper surface and the lower surface of the circuit board are exchanged, after the exchange is completed, the support 16 descends and resets, the pneumatic fingers 25 loosen the circuit board and keep away from the circuit board under the driving of the pushing cylinder 23, and therefore the silk-screen printing surface is automatically exchanged.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the above technical features may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.