CN215850190U

CN215850190U - Automatic tin powder printing device

Info

Publication number: CN215850190U
Application number: CN202122078143.2U
Authority: CN
Inventors: 张�成; 姚燕杰; 王丽; 位贤龙
Original assignee: Jiangsu A Kerr Bio Identification Technology Co Ltd
Current assignee: Jiangsu A Kerr Bio Identification Technology Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-18
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses an automatic tin powder printing device, which comprises a workbench provided with a conveyor belt, a connecting roller frame positioned at the front end of the workbench and a material carrying plate for placing a circuit board, wherein the material carrying plate can be conveyed between the connecting roller frame and the conveyor belt, a bracket is arranged above the workbench, the top of the bracket is provided with an air cylinder, a piston rod of the air cylinder penetrates through the bracket, the lower end of the piston rod is connected with a silk screen frame, the bottom of the silk screen frame is provided with a silk screen bottom plate, the lower surface of the silk screen printing bottom plate is provided with a positioning column, the material carrying plate is provided with a positioning hole matched with the positioning column, two inner walls opposite to the silk screen printing frame are positioned above the silk screen printing bottom plate and are respectively provided with a sliding groove, each sliding groove is internally provided with a sliding block capable of reciprocating in the sliding groove, the two sliding blocks are connected through an installation rod provided with a scraper blade, and the central area of the silk screen printing bottom plate is provided with a plurality of uniformly distributed discharging through holes. The utility model can avoid the circuit board from deviating and improve the processing precision and efficiency.

Description

Automatic tin powder printing device

Technical Field

The utility model relates to an automatic tin powder printing device, and belongs to the technical field of electronic product processing equipment.

Background

The silk screen printing is a device which uses a silk screen as a plate base and is manufactured into a silk screen printing plate with pictures and texts by a photosensitive plate making method, the silk screen printing plate consists of five major elements, the silk screen printing plate, a scraper blade, printing ink, a printing table and a printing stock, the basic principle that part of meshes of the pictures and texts of the silk screen printing plate can penetrate the printing ink and part of meshes of non-pictures and texts can not penetrate the printing ink is utilized to print, the printing ink is poured into one end of the silk screen printing plate during printing, the scraper blade is used for applying certain pressure to ink positions on the silk screen printing plate, meanwhile, the printing ink moves towards the other end of the silk screen printing plate at a constant speed, the printing ink is extruded onto the printing stock from the meshes of the pictures and texts by the scraper blade during moving, and the silk screen printing device of electronic products such as a circuit board and the like is a device which uses tin powder to replace the printing ink, and enables the meshes to align to welding spots on the circuit board to print.

The existing screen printing device for electronic products has the problems that the position of a circuit board is easy to deviate and tin printing cannot be accurately printed when the circuit board is printed, so that the processing precision of the product is insufficient and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an automatic tin powder printing device, which realizes automatic operation of feeding, conveying and tin powder coating, can also ensure the position precision of a circuit board in the operation process, avoids deviation and improves the processing precision and efficiency.

In order to solve the technical problems, the utility model adopts the technical scheme that: an automatic tin powder printing device comprises a workbench, a connecting roller frame and a material carrying plate, wherein the workbench is provided with a conveying belt, the connecting roller frame is positioned at the front end of the workbench, the material carrying plate is used for placing a circuit board, the material carrying plate can be conveyed between the connecting roller frame and the conveying belt, a support is arranged above the workbench, an air cylinder is arranged at the top of the support, a piston rod of the air cylinder penetrates through the support, the lower end of the piston rod is connected with a screen printing frame capable of moving up and down above the conveying belt, a screen printing bottom plate is arranged at the bottom of the screen printing frame, at least two positioning columns are arranged on the lower surface of the screen printing bottom plate, and positioning holes matched with the positioning columns are formed in the material carrying plate;

the screen printing frame is characterized in that a sliding groove is respectively arranged above the screen printing bottom plate and internally provided with a sliding block which can move in the sliding groove in a reciprocating manner, the sliding blocks are connected with each other through an installation rod provided with a scraper, the lower end face of the scraper is in contact with the upper surface of the screen printing bottom plate in an inclined manner, at least one sliding block is connected with a driving mechanism, a feed inlet is formed in the screen printing frame, and a plurality of uniformly distributed discharge through holes are formed in the central area of the screen printing bottom plate.

The further improved scheme in the technical scheme is as follows:

1. in the above scheme, a heater is installed on the top surface inside the support.

2. In the above scheme, four corners of the screen printing bottom plate are respectively provided with one positioning column.

3. In the above scheme, the bottom of the positioning column is provided with an inward inclined angle, and the top of the positioning hole is provided with an outward inclined angle.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses an automatic tin powder printing device.A screen printing bottom plate is arranged at the bottom of a screen printing frame, at least two positioning columns are arranged on the lower surface of the screen printing bottom plate, and positioning holes matched with the positioning columns are arranged on a material carrying plate; the screen printing frame has the advantages that the two opposite inner walls of the screen printing frame are positioned above the screen printing bottom plate, the two sliding grooves are respectively provided with the sliding groove, each sliding groove is internally provided with the sliding block capable of moving in the sliding groove in a reciprocating mode, the two sliding blocks are connected through the mounting rod provided with the scraper blade, automatic operation of feeding, conveying and tin powder coating is achieved, the position accuracy of the circuit board in the operation process can be guaranteed, deviation is avoided, and the processing accuracy and efficiency are improved.

Drawings

FIG. 1 is a schematic view of the overall structure of an automatic solder printing apparatus according to the present invention;

FIG. 2 is a sectional view of the entire structure of the automatic solder printing apparatus of the present invention;

fig. 3 is a schematic view of a portion of the structure of fig. 2 according to the present invention.

In the above drawings: 1. a work table; 2. connecting the roller frame; 3. a conveyor belt; 4. a material carrying plate; 5. a support; 6. a cylinder; 7. screen printing frames; 8. printing a bottom plate in a silk screen mode; 9. a chute; 10. a slider; 11. a squeegee; 12. a positioning column; 13. positioning holes; 14. a heater; 15. mounting a rod; 16. and (4) feeding a material inlet.

Detailed Description

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

Example 1: an automatic tin powder printing device comprises a workbench 1 provided with a conveyor belt 3, a connecting roller frame 2 positioned at the front end of the workbench 1 and a material carrying plate 4 used for placing a circuit board, wherein the material carrying plate 4 can be conveyed between the connecting roller frame 2 and the conveyor belt 3, a support 5 is arranged above the workbench 1, an air cylinder 6 is arranged at the top of the support 5, a piston rod of the air cylinder 6 penetrates through the support 5, the lower end of the piston rod is connected with a screen printing frame 7 capable of moving up and down above the conveyor belt 3, the bottom of the screen printing frame 7 is provided with a screen printing bottom plate 8, the lower surface of the screen printing bottom plate 8 is provided with at least two positioning columns 12, and the material carrying plate 4 is provided with positioning holes 33 matched with the positioning columns 12;

on two relative inner walls of silk screen frame 7 and being located respectively install a spout 9 above silk screen bottom plate 8, every be provided with a slider 10 that can reciprocating motion in spout 9 in the spout 9, two connect through an installation pole 15 that is equipped with scraper blade 11 between the slider 10, the slope sets up the lower terminal surface of scraper blade 11 and the last surface contact of silk screen bottom plate 8, at least one slider 10 is connected with actuating mechanism, it has feed inlet 16 to open on the silk screen frame 14, the central zone of silk screen bottom plate 8 is opened has a plurality of evenly distributed's discharging hole.

The four corners of the screen printing bottom plate 8 are respectively provided with one positioning column 12.

The bottom of the positioning post 12 is provided with an inward inclined angle, and the top of the positioning hole 33 is provided with an outward inclined angle.

Example 2: an automatic tin powder printing device comprises a workbench 1 provided with a conveyor belt 3, a connecting roller frame 2 positioned at the front end of the workbench 1 and a material carrying plate 4 used for placing a circuit board, wherein the material carrying plate 4 can be conveyed between the connecting roller frame 2 and the conveyor belt 3, a support 5 is arranged above the workbench 1, an air cylinder 6 is arranged at the top of the support 5, a piston rod of the air cylinder 6 penetrates through the support 5, the lower end of the piston rod is connected with a screen printing frame 7 capable of moving up and down above the conveyor belt 3, the bottom of the screen printing frame 7 is provided with a screen printing bottom plate 8, the lower surface of the screen printing bottom plate 8 is provided with at least two positioning columns 12, and the material carrying plate 4 is provided with positioning holes 33 matched with the positioning columns 12;

A heater 14 is installed on the inner top surface of the bracket 5.

When adopting above-mentioned automatic tin powder printing device, the theory of operation does: during operation, the material carrying roller frame on which the material carrying plate with the circuit board is placed, the material carrying plate is made to move to the workbench, the conveyer belt is started to drive the material carrying plate to move, when the material carrying table reaches a specified position, the conveyer belt stops working temporarily, the air cylinder pushes the silk screen frame and the silk screen bottom plate to move until the silk screen frame descends to a position where the positioning column is inserted into the positioning hole, so that the bottom surface of the silk screen bottom plate is attached to the top surface of the circuit board, one side of the scraper blade is in contact with the top surface of the silk screen bottom plate, the driving mechanism drives the slider to reciprocate, the scraper blade drives the tin powder to move, the tin powder falls on the circuit board through the hole in the silk screen bottom plate, each welding spot of the tin powder on the circuit board is enough, finally, the air cylinder shrinks to reset, the conveyer belt is started, and the conveyer belt drives the material carrying plate to move continuously.

A support is arranged above a workbench, an air cylinder is arranged at the top of the support, a piston rod of the air cylinder penetrates through the support, the lower end of the piston rod is connected with a screen printing frame which can move up and down above a conveyor belt, a screen printing bottom plate is arranged at the bottom of the screen printing frame, at least two positioning columns are arranged on the lower surface of the screen printing bottom plate, and positioning holes matched with the positioning columns are formed in a material carrying plate; the screen printing frame comprises two opposite inner walls and is characterized in that a sliding groove is formed in the upper portion of a screen printing bottom plate, a sliding block capable of moving in the sliding groove in a reciprocating mode is arranged in each sliding groove, the two sliding blocks are connected through a mounting rod with a scraper, the lower end face of the scraper which is obliquely arranged is in contact with the upper surface of the screen printing bottom plate, at least one sliding block is connected with a driving mechanism, a feeding hole is formed in the screen printing frame, a plurality of uniformly distributed discharging through holes are formed in the central area of the screen printing bottom plate, in the screen printing process of a circuit board, automatic operation of feeding, material conveying and tin powder coating is achieved, the position accuracy of the circuit board in the operation process can be further guaranteed, deviation is avoided, and the processing accuracy and efficiency are improved.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an automatic tin powder printing device, is including workstation (1) of installing conveyer belt (3), connecting roller frame (2) that are located workstation (1) front end and year flitch (4) that are used for placing the circuit board, it can convey its characterized in that to carry flitch (4) between connecting roller frame (2) and conveyer belt (3): a support (5) is arranged above the workbench (1), an air cylinder (6) is installed at the top of the support (5), a piston rod of the air cylinder (6) penetrates through the support (5), the lower end of the piston rod is connected with a screen printing frame (7) capable of moving up and down above the conveyor belt (3), a screen printing bottom plate (8) is installed at the bottom of the screen printing frame (7), at least two positioning columns (12) are arranged on the lower surface of the screen printing bottom plate (8), and positioning holes (13) matched with the positioning columns (12) are formed in the material carrying plate (4);

on two relative inner walls of silk screen frame (7) and being located respectively install a spout (9), every be provided with one in spout (9) reciprocating motion's slider (10), two through one installation pole (15) that are equipped with scraper blade (11) between slider (10) are connected, and the slope sets up the lower terminal surface of scraper blade (11) and the last surface contact of silk screen bottom plate (8), at least one slider (10) are connected with actuating mechanism, it has feed inlet (16) to open on silk screen frame (7), the central area of silk screen bottom plate (8) is opened has a plurality of evenly distributed's discharging hole.

2. An automatic tin powder printing device according to claim 1, characterized in that: and a heater (14) is arranged on the top surface inside the bracket (5).

3. An automatic tin powder printing apparatus according to claim 1 or 2, wherein: four corners of the silk screen printing bottom plate (8) are respectively provided with one positioning column (12).

4. An automatic tin powder printing apparatus according to claim 1 or 2, wherein: the bottom of the positioning column (12) is provided with an inward inclined bevel, and the top of the positioning hole (13) is provided with an outward inclined bevel.