CN217495538U - Screen printing machine and display screen production line - Google Patents

Abstract

The utility model relates to a screen printing equipment field discloses a screen printing machine and display screen production line, this screen printing machine is including vacuum adsorption platform (10) that is used for bearing and adsorbing the work piece and arrange work piece locating component (20) in this vacuum adsorption platform below, this work piece locating component is including location slider (21) that connect in order, horizontal drive device (22), lift drive device (23) and locating lever (24), this locating lever can be driven by lift drive device (23) and be passed vacuum adsorption platform along vertical direction and extend to this vacuum adsorption platform's upside and be driven by horizontal drive device (22) for the position with the edge contact of bearing the work piece on vacuum adsorption platform with this work piece of predetermined orientation location. The screen printing machine can be suitable for automatic mechanical positioning of workpieces in different sizes and shapes, the screen printing mechanical positioning requirements of workpieces in various sizes and shapes are met, the production efficiency is improved, and the die development cost is reduced.

Description

Screen printing machine and display screen production line

Technical Field

The utility model relates to a screen printing equipment specifically relates to a screen printing machine. On this basis, the utility model discloses still relate to a display screen production line including this screen printing machine.

Background

With the wide application of scientific and technical products in daily life of people, display technologies based on cover glass have been developed greatly. However, due to different product types and application scenarios, the cover glass used for the display screen has various shapes and sizes, for example, the cover glass is required to be shaped, which poses a serious challenge to the state of the art (especially the production of small-sized cover glass).

In order to meet the requirements of beauty and the like, the required materials are generally required to be printed on a glass original sheet or product by adopting a screen printing technology. The screen printing is to use a screen as a substrate, make a printing plate with a screen shape by a photosensitive plate making mode, and then print by utilizing the principle that ink can penetrate through screen meshes and can not penetrate through parts other than screen holes. The quality of screen printing belongs to the quality category of appearance, directly concerns the quality of the whole glass product, and the production efficiency of the screen printing process is below the average level in the whole production process of the glass cover plate. At present, aiming at the large-size cover glass which is generally in a 3D shape and has an irregular shape, a new mold needs to be separately developed for the cover glass in one shape, and manual feeding is needed, so that the manufacturing cost is high, and the working efficiency cannot meet the average requirement of a line body.

Therefore, the mechanical full-automatic screen printing positioning device which can replace manual feeding, reduce the labor intensity of people and adapt to cover plate glass screen printing of various sizes and shapes has important significance for improving the market competitiveness of enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a screen printing machine in order to overcome the problem that can't adapt to not unidimensional, different form work piece processing demands among the screen printing that prior art exists, this screen printing machine can realize the automatic machine location of the work piece of not unidimensional and form to practice thrift manufacturing cost from this, promote enterprise market competition.

In order to achieve the above object, an aspect of the present invention provides a screen printing machine, including the vacuum adsorption platform that is used for bearing and adsorbing the work piece and the work piece positioning component arranged below this vacuum adsorption platform, this work piece positioning component includes location slider, horizontal drive device, lift drive device and locating lever that connect in order, this locating lever can by the lift drive device drive is for passing along vertical direction the vacuum adsorption platform extends to this vacuum adsorption platform's upside and by the horizontal drive device drive be with bear in on the vacuum adsorption platform the edge contact of work piece is in order to fix a position the position of this work piece in the predetermined direction.

Preferably, a first through groove extending along a first horizontal direction and a second through groove extending along a second horizontal direction perpendicular to the first horizontal direction are formed on the vacuum adsorption platform, and a plurality of groups of workpiece positioning assemblies are arranged below the vacuum adsorption platform, and the positioning rods of the workpiece positioning assemblies can be driven to extend through the corresponding first through groove or second through groove so as to position the workpiece in the first horizontal direction and the second horizontal direction.

Preferably, the vacuum adsorption platform is provided with a feeding end and a discharging end at two ends in the first horizontal direction, and two first through grooves which are spaced from each other and arranged in a collinear manner and a plurality of second through grooves which are staggered from each other in the first horizontal direction are formed on the vacuum adsorption platform.

Preferably, the screen printing machine comprises a bottom plate arranged below the vacuum adsorption platform at intervals, the workpiece positioning assembly comprises a slide rail arranged on the bottom plate and extending along the predetermined direction, and the positioning slide block is in sliding fit with the slide rail and can be adjusted to be positioned at different extending positions of the slide rail.

Preferably, the workpiece positioning assembly comprises an adjusting screw rod arranged in parallel with the extending direction of the slide rail and an adjusting nut in threaded fit with the adjusting screw rod, and the positioning slider is fixedly connected to the adjusting nut so as to adjust the positioning position of the positioning slider on the slide rail by rotating the adjusting screw rod.

Preferably, the base plate is provided with bearing seats arranged at a distance from each other, by means of which the adjusting screw is rotatably mounted on the base plate.

Preferably, one end of the adjusting screw rod is provided with an adjusting cap for operating to rotate the adjusting screw rod.

Preferably, the horizontal driving device and/or the lifting driving device are provided as air cylinders.

The second aspect of the utility model provides a display screen production line, this display screen production line includes above-mentioned screen printing machine.

Preferably, a robot arm for carrying the workpiece onto or off the vacuum adsorption platform is provided at an end of the screen printing machine.

Through the technical scheme, the utility model discloses a screen printing machine can set the locating position of location slider according to the size and the form of the work piece of being processed (like the former piece of glass), and then drive the locating lever to and bear the marginal contact of the work piece of being processed on the vacuum adsorption platform by horizontal drive device and lift drive device, in order to be positioned this work piece in predetermined processing position, can be adapted to the automatic machine location of the work piece of unidimensional and form from this, satisfy the silk screen printing mechanical positioning demand of the work piece of multiple size and form, production efficiency has been promoted and mould development cost has been reduced.

Drawings

Fig. 1 is a schematic view of the operation flow of screen printing by a screen printer of the present invention;

FIG. 2 is a schematic diagram of the entire screen printing machine of FIG. 1;

FIG. 3 is a schematic perspective view of a set of workpiece positioning assemblies of the screen printing machine of FIG. 2;

FIG. 4 is a front view of the workpiece positioning assembly and vacuum chuck table of FIG. 3;

description of the reference numerals

10-vacuum adsorption platform; 11-a first through slot; 12-a second through slot; 20-a workpiece positioning assembly; 21-positioning the slide block; 22-horizontal drive means; 23-a lifting drive; 24-positioning the rod; 25-a slide rail; 26-adjusting the screw rod; 27-an adjusting nut; 28-bearing seats; 29-an adjustment cap; 30-a bottom plate; 40-a mechanical arm.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves.

Referring to fig. 1, a screen printing operation flow using a screen printer detailed later in a display screen production line according to a preferred embodiment of the present invention includes a screen printer and a robot arm 40 respectively disposed at a feeding end and a discharging end of the screen printer, wherein the screen printer has a vacuum adsorption platform 10 for carrying and adsorbing glass sheets, and the robot arm 40 at the feeding end can place the glass sheets on the vacuum adsorption platform 10 and is adsorbed and fixed by the vacuum adsorption platform 10; the mechanical arm 40 at the blanking end can move the glass product after silk-screen printing on the vacuum adsorption platform 10 away from the vacuum adsorption platform 10 for subsequent production processes.

Before the glass original sheet is subjected to silk-screen printing on the vacuum adsorption platform 10, a workpiece positioning assembly 20 (see fig. 2) of a silk-screen printing machine is required to position the glass original sheet so as to ensure the processing quality. Fig. 2 shows a schematic structural diagram of a complete machine and key components of a screen printing machine according to a preferred embodiment of the present invention. It is understood that, although the screen printing machine provided by the present invention will be exemplified herein and hereinafter mainly by taking the screen printing process of cover glass in the display screen production as an example, the screen printing machine is not limited to the fields of cover glass and display screen, but may also be used in the screen printing of other plate-like products.

Therefore, the utility model provides a screen printing machine, include aforementioned vacuum adsorption platform 10 and arrange work piece locating component 20 in this vacuum adsorption platform 10 below. As shown in fig. 3 and 4, the workpiece positioning assembly 20 includes a positioning slider 21, a horizontal driving device 22, a lifting driving device 23, and a positioning rod 24, which are connected in sequence, that is, the horizontal driving device 22 is fixed on the positioning slider 21, a driving end thereof is connected to the lifting driving device 23 in a transmission manner, and a driving end of the lifting driving device 23 is further connected to the positioning rod 24. Therefore, according to the size and shape of the workpiece (e.g. glass original sheet) to be processed, the positioning position of the positioning slider 21 can be first set, after the workpiece is placed on the vacuum adsorption platform 10, the horizontal driving device 22 drives the lifting driving device 23 and the positioning rod 24 to move horizontally, and at the same time/subsequently, the lifting driving device 23 drives the positioning rod 24 to lift up, and the positioning rod 24 passes through the vacuum adsorption platform 10 in the vertical direction and extends to the upper side of the vacuum adsorption platform 10. Thus, the positioning rod 24 can be brought into contact with the edge of the workpiece carried on the vacuum adsorption platform 10 to position the workpiece in a predetermined direction (position the workpiece in a predetermined processing position). In the present invention, the horizontal driving device 22 and the lifting driving device 23 can be respectively selected as various linear driving devices of suitable forms, such as a cylinder, a linear motor, etc.

It can be seen that, for workpieces of different sizes and shapes, such as cover glass of different specifications and types, the positioning position of the positioning slide block 21 can be correspondingly adjusted, and then the horizontal driving device 22 and the lifting driving device 23 drive the positioning rod 24 to position the processing position of the workpiece, so that the screen printing machine can be suitable for automatic mechanical positioning of workpieces of different sizes and shapes, the screen printing mechanical positioning requirements of workpieces of various sizes and shapes are met, the production efficiency is improved, and the die development cost is reduced.

Generally, although different sizes and configurations may be present, most display screens are provided with a quadrilateral profile, and therefore, the number and orientation of the workpiece positioning assemblies 20 may be set accordingly to avoid undue complication of the screen printing machine. Referring again to fig. 1 and 2, in order to allow the positioning rod 24 to extend through the vacuum adsorption platform 10 to the upper side of the vacuum adsorption platform 10 to contact the edge of the workpiece in a predetermined direction, a first through groove 11 extending in a first horizontal direction and a second through groove 12 extending in a second horizontal direction, which is perpendicular to the first horizontal direction, may be formed on the vacuum adsorption platform 10. Accordingly, a plurality of sets of workpiece positioning assemblies 20 may be disposed below the vacuum adsorption platform 10 corresponding to the first through grooves 11 and the second through grooves 12, respectively, and the positioning rods 24 of the workpiece positioning assemblies 20 may be driven to extend through the corresponding first through grooves 11 or the second through grooves 12 to position the workpiece in the first horizontal direction and the second horizontal direction. Thus, a portion of the workpiece positioning assemblies 20 may position the workpiece in a second horizontal direction by contacting the locating rods 24 thereof with an edge of the workpiece being machined that extends in the first horizontal direction; another portion of the workpiece positioning assembly 20 positions the workpiece in the first horizontal direction by contacting its locating bar 24 with an edge of the workpiece being machined that extends in the second horizontal direction.

In the illustrated preferred embodiment, the first horizontal direction is a direction from the feeding end to the discharging end (i.e., a left-right direction in fig. 1), and two first through grooves 11 are formed on the vacuum adsorption platform 10; the second horizontal direction is a horizontal direction (i.e., the up-down direction in fig. 1) perpendicular to the first horizontal direction, and four second through grooves 12 are formed on the vacuum adsorption platform 10 and are divided into two groups, each group being two, facing each other.

To better illustrate the arrangement of the first through groove 11 and the second through groove 12 in the preferred embodiment of the present invention, the feeding end and the discharging end of the screen printing machine are described as the feeding end and the discharging end of the vacuum adsorption platform, respectively. The two first through grooves 11 are spaced from each other and arranged in line, so that the pushing force applied to the edge of the workpiece when the workpiece is positioned in the first horizontal direction can be made in line, and possible damage caused by the rotation of the workpiece can be avoided. With the second through grooves 12 extending in the second horizontal direction, they can be arranged offset from each other in the first horizontal direction, whereby higher workpiece positioning accuracy can be ensured. For example, in the illustrated preferred embodiment, the pitch of one set of the second through slots 12 is smaller than the pitch of the other set of the second through slots 12, and the center lines of the two sets of the second through slots 12 are collinear. In other alternative embodiments, the two first through slots 11 may penetrate each other to form a through slot extending along the first horizontal direction, and the plurality of groups of second through slots 12 may also be arranged as one or more groups.

With continued reference to fig. 3 and 4, a screen printing machine according to a preferred embodiment of the present invention includes a base plate 30, the base plate 30 being positioned below the vacuum adsorption platform 10 and spaced apart from the vacuum adsorption platform 10. A workpiece positioning assembly 20 for positioning a workpiece is mounted on the base plate 30 to be operable to position the workpiece on the vacuum adsorption platform 10.

Specifically, the bottom plate 30 may be provided with a slide rail 25 extending along a predetermined direction (such as the aforementioned first horizontal direction and second horizontal direction), and the positioning slider 21 is slidably engaged with the slide rail 25 and can be adjusted to be positioned at different extending positions of the slide rail 25. Therefore, according to the size and the shape of a processed workpiece (such as a glass original sheet), the position of the positioning slide block 21 can be adjusted on the slide rail 25 so as to adjust the positioning position of the slide block, and the screen printing positioning requirement of the corresponding processed workpiece is met.

In the present invention, the positioning position of the positioning slider 21 on the slide rail 25 can be driven and defined by various suitable methods, such as a step motor and the like which can be installed on the bottom plate 30 and is connected to the positioning slider 21 in a transmission manner. In the preferred embodiment shown in the drawings, the present invention employs a lead screw nut adjustment mechanism to adjust the position of the positioning slide 21 so as to achieve the adjustment requirements at a lower material cost. Specifically, the workpiece positioning assembly 20 includes an adjusting screw 26 arranged in parallel with the extending direction of the slide rail 25 and an adjusting nut 27 in threaded fit with the adjusting screw 26, and the positioning slider 21 is fixedly connected to the adjusting nut 27, so that the adjusting nut 27 can horizontally move along the adjusting screw 26 by rotating the adjusting screw 26, and further the positioning slider 21 is driven to slide on the slide rail 25, thereby realizing the adjustment of the positioning position thereof.

Here, the lead screw 26 may be provided separately from the base plate 30 or provided on the base plate 30. In the illustrated preferred embodiment, the base plate 30 is provided with bearing seats 28 arranged at a distance from one another, and the adjusting screw 26 is rotatably mounted on the base plate 30 via the bearing seats 28. In addition, at one end of the adjustment screw 26, an adjustment cap 29 for operating to rotate the adjustment screw 26 may be provided.

On this basis, the utility model discloses still provide a display screen production line including above-mentioned screen printing machine.

In order to better understand the screen printing machine of the present invention, the following description is briefly made in conjunction with the preferred embodiment of the present invention: the adjusting screw rod 26 is adjusted through the adjusting cap 29 according to the size and the shape of the glass, so that the horizontal driving device 22 and the lifting driving device 23 move along with the adjusting nut 27 and the sliding rail 25 to reach a positioning point; after the mechanical arm 40 places the glass on the vacuum adsorption platform 10, the glass is adsorbed by the vacuum adsorption platform 10; the positioning rod 24 is horizontally driven by the horizontal driving device 22 to move forwards from the initial position, meanwhile, the lifting driving device 23 carries out jacking action, the positioning rod 24 is jacked to move forwards, after the positioning rods 24 in the six-axis direction sequentially reach the preset positioning positions through the preset sequence, the horizontal driving device 22 recovers the jacking shafts, meanwhile, the lifting driving device 23 recovers the jacking shafts, and the positioning rods 24 return to the initial position to complete one positioning cycle. The utility model discloses when the glass mechanical positioning who adapts to not unidimensional form, through horizontal drive arrangement 22 and the lift drive 23 of adjusting six directions, adjust the locating position who arrives silk screen printing processing requirement with glass, have higher production efficiency and can guarantee product quality.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, makes up with any suitable mode including each concrete technical feature. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (10)

1. The screen printing machine is characterized by comprising a vacuum adsorption platform (10) used for bearing and adsorbing a workpiece and a workpiece positioning assembly (20) arranged below the vacuum adsorption platform (10), wherein the workpiece positioning assembly (20) comprises a positioning slide block (21), a horizontal driving device (22), a lifting driving device (23) and a positioning rod (24) which are sequentially connected, and the positioning rod (24) can be driven by the lifting driving device (23) to penetrate through the vacuum adsorption platform (10) along the vertical direction to extend to the upper side of the vacuum adsorption platform (10) and driven by the horizontal driving device (22) to be in contact with the edge of the workpiece borne on the vacuum adsorption platform (10) so as to position the workpiece in a preset direction.

2. The screen printing machine according to claim 1, wherein the vacuum suction platform (10) is formed with a first through slot (11) extending in a first horizontal direction and a second through slot (12) extending in a second horizontal direction perpendicular to the first horizontal direction, and a plurality of sets of the workpiece positioning assemblies (20) are arranged below the vacuum suction platform (10), the positioning rods (24) of the workpiece positioning assemblies (20) being drivable to extend through the corresponding first through slot (11) or second through slot (12) to position the workpiece in the first horizontal direction and second horizontal direction.

3. The screen printing machine according to claim 2, wherein the vacuum suction platform (10) is provided at both ends in the first horizontal direction as a feeding end and a discharging end, respectively, and two first through grooves (11) arranged in line and spaced from each other and a plurality of second through grooves (12) arranged offset from each other in the first horizontal direction are formed on the vacuum suction platform (10).

4. The screen printing machine according to claim 1, wherein the screen printing machine comprises a base plate (30) arranged at an interval below the vacuum adsorption platform (10), the workpiece positioning assembly (20) comprises a slide rail (25) arranged on the base plate (30) and extending along the predetermined direction, and the positioning slide (21) is slidably engaged with the slide rail (25) and can be adjusted to be positioned at different extending positions of the slide rail (25).

5. The screen printing machine according to claim 4, wherein the workpiece positioning assembly (20) comprises an adjusting screw (26) arranged in a direction parallel to the extension direction of the slide rail (25) and an adjusting nut (27) in threaded engagement with the adjusting screw (26), the positioning slide (21) being fixedly connected to the adjusting nut (27) so as to be able to adjust the positioning position of the positioning slide (21) on the slide rail (25) by rotating the adjusting screw (26).

6. The screen printing machine according to claim 5, wherein the base plate (30) is provided with bearing blocks (28) arranged at a distance from one another, the adjusting screw (26) being rotatably mounted on the base plate (30) via the bearing blocks (28).

7. The screen printing machine according to claim 5, wherein one end of the adjusting screw (26) is provided with an adjusting cap (29) for operating to rotate the adjusting screw (26).

8. The screen printing machine according to claim 1, wherein the horizontal drive (22) and/or the lifting drive (23) are provided as pneumatic cylinders.

9. A display screen production line, characterized in that it comprises a screen printing machine according to any one of claims 1 to 8.

10. Display screen production line according to claim 9, characterized in that the end of the screen printing machine is provided with a robot arm (40) for carrying the workpiece onto the vacuum suction platform (10) or for carrying the workpiece off the vacuum suction platform (10).

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