CN211054631U

CN211054631U - Vacuum screen printer

Info

Publication number: CN211054631U
Application number: CN201921478204.0U
Authority: CN
Inventors: 陈哲维
Original assignee: Shenzhen Lianxuda Technology Co ltd
Current assignee: Shenzhen Lianxuda Technology Co ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-07-21
Anticipated expiration: 2029-09-05

Abstract

The utility model relates to the technical field of screen printing machines, and discloses a vacuum screen printing machine, which comprises a frame, wherein the frame is provided with a vacuum chamber, a workbench, a screen printing plate, a cover plate structure, a glue spraying head and a scraper blade are arranged in the vacuum chamber, a base plate is placed on the workbench, the screen printing plate is arranged above the base plate, and the cover plate structure is used for pressing the screen printing plate cover on the base plate; after the cover plate structure presses the silk-screen plate on the substrate, the glue spraying head sprays conductive glue to the silk-screen plate, and the scraper scrapes the conductive glue back and forth to enable the conductive glue to penetrate through the silk-screen plate and to be printed on the substrate in a silk-screen manner; the frame has the vacuum chamber, sets up the workstation in the vacuum chamber, arranges the base plate in on the workstation, then uses the apron structure to cover the silk screen printing version and presses on the base plate, and the base plate has got rid of the interference of air because be in vacuum environment with the silk screen printing version this moment, and the effect to the base plate silk screen printing becomes better.

Description

Vacuum screen printer

Technical Field

The patent of the utility model relates to a technical field of silk screen printing machine particularly, relates to vacuum silk screen printing machine.

Background

With the development of electronic technology in China, the requirements for increasingly improved electronic devices and the quality requirements for substrates used in the electronic devices are increasingly high, and the use of a screen printer for circuit printing on the substrates is also increasingly popular.

At present, the silk screen printing machine includes the frame, and the frame is equipped with workstation, apron structure and spouts gluey head, and the base plate is arranged on the workstation, and the apron structure covers the silk screen printing version and presses the base plate, spouts gluey head and spouts the back on the silk screen printing plate conductive paste, and the scraper blade is scraped and is pressed the silk screen printing plate so that the conductive paste sees through the silk screen printing version, prints the circuit diagram on the base plate.

In the prior art, when a substrate is processed on a base of a silk-screen printing plate, the base has air and other interferences, so that the silk-screen printing effect of a product is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vacuum silk screen printing machine aims at solving prior art, and the silk screen printing effect of current silk screen printing machine is not good enough problem.

The utility model discloses a realize like this, vacuum screen printing machine, including the frame, the frame has the vacuum chamber, be provided with the workstation of placing the base plate, arrange the silk screen printing plate above the base plate, be used for with the silk screen printing plate lid presses apron structure, glue-spraying head and scraper blade on the base plate in the vacuum chamber; when the cover plate structure presses the silk-screen printing plate cover on the substrate, the glue spraying head sprays conductive glue to the silk-screen printing plate, and the scraper scrapes the conductive glue back and forth so that the conductive glue penetrates through the silk-screen printing plate and is printed on the substrate.

Further, the cover plate structure comprises two installation pieces arranged at intervals, and the two installation pieces are respectively arranged on two sides of the workbench; two sides of the silk printing plate are respectively and correspondingly connected with the two installation pieces; the installing piece is connected with a lifting motor, and the installing piece is driven by the lifting motor to move up and down.

Further, a squeegee area is formed on the table, the substrate being arranged in the squeegee area; the scraping area is provided with a starting position and an ending position, and when the lifting motor drives the installing piece to move downwards and presses the silk-screen printing plate cover on the base plate, the scraping plate scrapes back and forth between the starting position and the ending position.

Further, a cross beam is arranged above the workbench and moves back and forth along the scraping area; the upper portion of the scraper blade is movably connected with the cross beam, the lower portion of the scraper blade extends towards the scraping area, and a scraping end for scraping and pressing the conductive adhesive on the silk printing plate is formed.

Furthermore, guide rails are respectively arranged on two sides of the workbench and extend along the scraping direction of the scraper; the two sides of the cross beam are respectively connected with a loading part, and the loading parts are movably connected to the guide rails.

Furthermore, the scraping end of the scraper is arranged in a plane shape to form a scraping and pressing surface.

Further, the scraping and pressing surface is obliquely arranged along the direction from top to bottom.

Furthermore, the beam is provided with a clamping head extending along the length direction of the beam, and the clamping head clamps the upper part of the scraper.

Furthermore, the clamping head is provided with two oppositely arranged side faces, a rebound spring is arranged between the side face of the clamping head and the cross beam, and the rebound spring drives the clamping head to reset.

Furthermore, a camera for shooting the position of the substrate and pushing heads for finely adjusting the position of the substrate are arranged in the vacuum chamber, and the pushing heads are arranged on two sides of the substrate; the camera shoots basic images on the workbench, and the shot images are transmitted to the controller, and the controller controls the pushing head to press the substrate to move so as to enable the substrate to be positioned on the workbench.

Compared with the prior art, the utility model provides a vacuum screen printing machine, frame have the vacuum chamber, set up the workstation in the vacuum chamber, arrange the base plate in on the workstation, then use the apron structure to cover the silk screen printing version and press on the base plate, the base plate has got rid of the interference of air because be in vacuum environment with the silk screen printing version this moment, and the effect to the base plate silk screen printing becomes better.

Drawings

Fig. 1 is a schematic perspective view of a vacuum screen printing machine provided by the present invention;

FIG. 2 is an enlarged view of the portion A in FIG. I;

FIG. 3 is a schematic cross-sectional view of the cross beam, the clamping head and the scraper provided by the present invention;

fig. 4 is a schematic front view of the silk-screen plate, the substrate and the worktable provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1-4, the preferred embodiment of the present invention is shown.

The vacuum screen printing machine provided by the embodiment comprises a machine base 11, wherein the machine base 11 is provided with a vacuum chamber 12, a workbench 13, a silk printing plate 14, a cover plate structure 15, a glue spraying head and a scraper 17 are arranged in the vacuum chamber 12, a substrate 18 is placed on the workbench 13, the silk printing plate 14 is arranged above the substrate 18, and the cover plate structure 15 is used for covering and pressing the silk printing plate 14 on the substrate 18; when the cover plate structure 15 covers the silk-screen plate 14 on the substrate 18, the glue-spraying head sprays conductive glue to the silk-screen plate 14, and the scraper 17 scrapes the conductive glue back and forth to enable the conductive glue to penetrate through the silk-screen plate 14 and to be silk-screen-printed on the substrate 18.

The machine base 11 is provided with a vacuum chamber 12, a workbench 13 is arranged in the vacuum chamber 12, a substrate 18 is placed on the workbench 13, then the silk-screen plate 14 is covered on the substrate 18 by using the cover plate structure 15, and at the moment, the substrate 18 and the silk-screen plate 14 are in a vacuum environment, so that the interference of air is removed, and the silk-screen effect on the substrate 18 is better.

The cover plate structure 15 includes two installation pieces 19 arranged at intervals, and the two installation pieces 19 are respectively arranged at two sides of the workbench 13; two sides of the silk-screen plate 14 are respectively correspondingly connected with the two installation pieces 19; the installation piece 19 is connected with a lifting motor 20, and the installation piece 19 is driven by the lifting motor 20 to move up and down; the elevating motor 20 drives the mounting member 19 to move up and down, thereby pressing the stencil 14 cover onto the substrate 18, which is convenient.

Also, a squeegee region is formed on the table 13, and the substrate 18 is arranged in the squeegee region; the scraping area is provided with a starting position and an ending position, and when the lifting motor 20 drives the mounting piece 19 to move downwards to press the silk-screen plate 14 on the substrate 18, the scraping plate 17 scrapes back and forth between the starting position and the ending position; the squeegee 17 can scrape the stencil 14 when the stencil 14 is pressed against the substrate 18.

Also, a cross beam 21 is arranged above the table 13, and the cross beam 21 moves back and forth along the scraping area; the upper part of the scraping plate 17 is movably connected with the cross beam 21, the lower part of the scraping plate 17 extends towards the scraping area, and a scraping end for scraping and pressing the conductive adhesive on the silk printing plate 14 is formed; when the squeegee 17 performs squeegeeing on the screen plate 14, the squeegeeing end of the squeegee 17 contacts the conductive paste and squeegees, so that the conductive paste is screen-printed with a circuit pattern on the substrate 18 through the screen plate 14.

In addition, guide rails are respectively provided on both sides of the table 13, and the guide rails are arranged to extend in the scraping direction of the scraper 17; two sides of the cross beam 21 are respectively connected with a loading piece, and the loading pieces are movably connected on the guide rails; the loading part is driven by a sliding motor 22 to move on the guide rail; the scraper 17 is connected with the beam 21, and when the beam 21 moves, the scraper 17 can move from the starting position to the ending position, so that the back-and-forth scraping on the silk-screen plate 14 is realized.

Wherein the loading piece can be a slide block, a slide groove is formed on the guide rail, the slide block is embedded into the slide groove, and the slide motor 22 drives the slide block to slide in the slide groove, so that the purpose of moving the beam 21 is achieved, and the structure is simple.

Specifically, the scraping end of the scraper 17 is arranged in a plane shape to form a scraping and pressing surface 23; squeegee surface 23 presses the conductive paste through screen printing plate 14, thereby screen printing a circuit pattern on substrate 18.

In addition, the scraping and pressing surface 23 is obliquely arranged along the direction from top to bottom, so that the silk-screen printing plate 14 can be better scraped and the conductive adhesive can be better pressed to pass through the silk-screen printing plate 14, and a circuit diagram is printed on the substrate 18.

Furthermore, the beam 21 is provided with a clamping head 24 extending along the length direction of the beam 21, and the clamping head 24 clamps the upper part of the scraper 17;

by arranging the clamping head 24, when the scraper 17 needs to be taken down for cleaning, the clamping head 24 can be opened, so that the scraper 17 can be taken down.

Furthermore, the clamping head 24 has two oppositely arranged sides, and a rebound spring 25 is arranged between the side of the clamping head 24 and the cross beam 21, and the rebound spring 25 drives the clamping head 24 to reset.

The clamping head 24 comprises a first clamping piece 26 and a second clamping piece 27, the first clamping piece 26 and the second clamping piece 27 are hinged with the lower surface of the cross beam 21 facing the silk plate 14, and two sides of the first clamping piece 26 and the second clamping piece 27 are connected with a tightening spring 28; a clamping area is formed between the first clamping piece 26 and the second clamping piece 27, the upper part of the scraping plate 17 is embedded into the clamping area, and the first clamping piece 26 and the second clamping piece 27 are driven by the tightening spring 28 to clamp the upper part of the scraping plate 17, so that the scraping plate 17 is fixed.

A camera for shooting the position of the substrate 18 and a pushing head 30 for finely adjusting the position of the substrate 18 are arranged in the vacuum chamber 12, and the pushing heads 30 are arranged at two sides of the substrate 18; the camera takes a basic image on the table 13, and the taken image is transmitted to a controller which controls the pusher 30 to press the substrate 18 to move the substrate 18 on the table 13.

Wherein the pushing head 30 is driven by a pushing motor, which is arranged on the frame 11.

Wherein the controller, the camera, the pushing motor, the sliding motor 22 and the lifting motor 20 are electrically connected with the external power supply respectively, and the specific connection mode is not expanded.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The vacuum screen printing machine is characterized by comprising a machine base, wherein the machine base is provided with a vacuum cavity, and a workbench for placing a substrate, a screen printing plate arranged above the substrate, a cover plate structure for covering the screen printing plate on the substrate, a glue spraying head and a scraper are arranged in the vacuum cavity; when the cover plate structure presses the silk-screen printing plate cover on the substrate, the glue spraying head sprays conductive glue to the silk-screen printing plate, and the scraper scrapes the conductive glue back and forth so that the conductive glue penetrates through the silk-screen printing plate and is printed on the substrate.

2. The vacuum screen printing machine of claim 1, wherein the cover plate structure comprises two spaced apart mountings, the mountings being respectively arranged on either side of the table; two sides of the silk printing plate are respectively and correspondingly connected with the two installation pieces; the installing piece is connected with a lifting motor, and the installing piece is driven by the lifting motor to move up and down.

3. The vacuum screen printing machine according to claim 2, wherein a squeegee area is formed on the table, and the substrate is disposed in the squeegee area; the scraping area is provided with a starting position and an ending position, and when the lifting motor drives the installing piece to move downwards and presses the silk-screen printing plate cover on the base plate, the scraping plate scrapes back and forth between the starting position and the ending position.

4. The vacuum screen printing machine according to claim 3, wherein a beam is arranged above the worktable, and the beam moves back and forth along the scraping area; the upper portion of the scraper blade is movably connected with the cross beam, the lower portion of the scraper blade extends towards the scraping area, and a scraping end for scraping and pressing the conductive adhesive on the silk printing plate is formed.

5. The vacuum screen printing machine according to claim 4, wherein guide rails are respectively provided on both sides of the worktable, and the guide rails are arranged to extend along the scraping direction of the scraping plate; the two sides of the cross beam are respectively connected with a loading part, and the loading parts are movably connected to the guide rails.

6. The vacuum screen printing machine of claim 5, wherein the squeegee end of the squeegee is arranged in a planar manner to form a squeegee surface.

7. The vacuum screen printing machine according to claim 6, wherein the squeegee surfaces are arranged obliquely in a top-down direction.

8. The vacuum screen printing machine as claimed in any one of claims 4 to 7, wherein the beam is provided with a clamping head extending along a length direction of the beam, and the clamping head clamps an upper portion of the squeegee.

9. The vacuum screen printing machine according to claim 8, wherein the clamping head has two oppositely arranged sides, and a resilient spring is arranged between the sides of the clamping head and the cross beam and drives the clamping head to return.

10. The vacuum screen printing machine according to any one of claims 4-7, wherein a camera for photographing the position of the substrate and a pushing head for fine adjustment of the position of the substrate are arranged in the vacuum chamber, and the pushing heads are arranged on two sides of the substrate; the camera shoots basic images on the workbench, and the shot images are transmitted to the controller, and the controller controls the pushing head to press the substrate so as to move the substrate on the workbench.