CN109109443B

CN109109443B - Screen printing machine table board and using method

Info

Publication number: CN109109443B
Application number: CN201810624057.7A
Authority: CN
Inventors: 李达林; 王文剑; 余宁; 陈国忠
Original assignee: Shenzhen Threetek Technology Co ltd
Current assignee: Shenzhen Threetek Technology Co ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2020-11-24
Anticipated expiration: 2038-06-15
Also published as: CN109109443A

Abstract

The invention provides a screen printer table board and a using method thereof, wherein the screen printer table board comprises: the base and a plurality of mesa subassembly, wherein, a plurality of mesa subassembly array set up in on the base, the mesa subassembly includes fixed part, top face portion and actuating mechanism, the mesa subassembly passes through the fixed part is fixed in on the base, top face portion can actuating mechanism's effect down vertical movement. The screen printer table board provided by the invention can form the support frame with corresponding size and shape according to products with different shapes, thereby meeting the production requirements of different products.

Description

Screen printing machine table board and using method

Technical Field

The invention relates to the field of PCB production equipment, in particular to a screen printer table board and a using method thereof.

Background

In the solder mask process of the circuit board, photosensitive ink is generally required to be silk-screened on the board surface by a silk-screen printing mode. When the printing ink is printed, the printing ink is viscous, and after one surface is printed, the printing ink cannot directly contact the printed surface. In order to realize more convenient and efficient working modes on two sides of a disposable silk-screen printed circuit board, and not pollute a silk-screen table top, double-sided ventilation can be ensured, an auxiliary tool is needed to make the product overhead, and meanwhile, certain force can be guaranteed to bear so as not to be sunken during silk-screen printing.

In the prior art, waste FR-4 leftover materials with the thickness of 1.0mm-2.0mm are generally adopted, a backing plate is adhered by an adhesive tape, and then a support nail (commonly called a nail bed in the industry) is adhered on the backing plate; and during silk-screen printing, placing the plate to be silk-screen printed on the screen printing plate to finish the preparation work of silk-screen printing. Like this, played the effect of supporting the silk screen printing board on the one hand, on the other hand played the ventilative effect of position-giving silk screen printing face, satisfied the board of partial requirement printing ink consent, the circulation that silk screen printing ink can be smooth is downthehole, prevents to pollute the effect of silk screen printing mesa simultaneously.

However, the following disadvantages exist with this method:

(1) the simple FR-4 base plate (nail bed) is manufactured generally within 20-40min, the dismounting requires 5-15min, and the bracket cannot be shared and needs to be manufactured separately each time the production model is switched, so that the time cost is wasted;

(2) when the base plate is manufactured, particularly when the base plate is disassembled, the base plate is manually disassembled, the base plate can inevitably contact with printing ink, certain health hazards can be caused to people, and the damage such as cutting injury, scratching injury and the like can be caused due to the careless disassembly;

(3) the pad is very specific, and generally, the model of a product needs to correspond to a pad, and cannot play a role in resource sharing.

Disclosure of Invention

In order to solve the above problems, the present invention provides a screen printer table, comprising: the base and a plurality of mesa subassembly, wherein, a plurality of mesa subassembly array set up in on the base, the mesa subassembly includes fixed part, top face portion and actuating mechanism, the mesa subassembly passes through the fixed part is fixed in on the base, top face portion can actuating mechanism's effect down vertical movement.

Further, when the top surface portions of the plurality of table top components are located at the same height relative to the base, the top surface portions of the plurality of table top components jointly form a rectangular plane.

Further, the top surface of the table top component is rectangular.

Furthermore, the top surface part of the table board component is a square with the side length of 5mm-10 mm.

Further, the drive mechanism of the tabletop assembly comprises: one or more of a cylinder drive mechanism, a motor drive mechanism, or a hydraulic drive mechanism.

Furthermore, the screen printing machine table-board also comprises a fixed frame which is fixed on the screen printing machine table-board base and can include a plurality of table-board components.

Furthermore, a plurality of gaps are arranged on the edges of the fixed frame; when the fixed frame is arranged above the fixed base, the notch and the fixed base form a through hole; the vent pipe of the cylinder penetrates through the through hole.

Further, a plurality of the table top components can be operated independently.

Further, a plurality of the driving mechanisms are connected with a control system.

The invention also provides a using method of the table top of the screen printing machine, which comprises the following steps:

s10: acquiring the appearance and the size of a PCB to be silk-screened;

s20: determining the size of a supporting area of the table top of the screen printing machine for supporting the PCB according to the PCB information needing screen printing obtained in the step S10;

s30: determining the position of the PCB to be placed on the table top of the screen printer;

s40: determining a supporting area according to the size of the supporting area determined in the step S20 and the position determined in the step S30, and enabling an air cylinder corresponding to the supporting area to move downwards to form a groove;

s50: placing the PCB over the support area;

s60: and entering a silk-screen printing process.

According to the screen printer table board provided by the invention, a plurality of table board components consisting of fixing parts, top surface parts and driving mechanisms are arranged above a base, the top surface parts form the table board, and all the top surface parts move up and down through the driving mechanisms; part of the cylinder head moves downwards to form a groove for erecting the PCB. The screen printer table board provided by the invention can form the support frame with corresponding size and shape according to products with different shapes, thereby meeting the production requirements of different products.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a table top of a screen printing machine provided by the present invention;

FIG. 2 is a schematic view of a fixing frame structure;

FIG. 3 is a schematic structural diagram of a preferred embodiment of a table top of a screen printing machine;

fig. 4 is a schematic view of a groove.

Reference numerals:

10 base 20 top 21 breather pipe

30 groove 40 fixed frame 41 notch

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Fig. 1 is a schematic structural diagram of a table top of a screen printing machine provided by the invention, as shown in fig. 1: the silk screen printing machine mesa includes: the base and a plurality of mesa subassembly, wherein, a plurality of mesa subassembly array set up in on the base, the mesa subassembly includes fixed part, top face portion and actuating mechanism, the mesa subassembly passes through the fixed part is fixed in on the base, top face portion can actuating mechanism's effect down vertical movement.

When the table top assembly is concretely implemented, a plurality of table top assemblies are fixed on the base 10, the top surface parts 20 of the plurality of table top assemblies form the table top, and each top surface part 20 can realize up-and-down movement by controlling the driving mechanism; when one surface of a certain PCB is finished with silk-screen printing and the other surface is required to be printed with silk-screen printing, according to the shape and the size of the PCB and the specific position required to be placed on the table top, the control part top surface part 20 moves downwards to form a groove 30 (as shown in figure 4), the PCB with one surface printed with silk-screen printing is placed above the groove 30, the surface printed with silk-screen printing ink faces the groove 30, the groove 30 plays a role of ventilation, and the edge of the groove 30 plays a role of support, so that the other surface of the PCB is printed with silk-screen printing.

Preferably, when the driving mechanism is an air cylinder driving mechanism or a hydraulic driving mechanism, the air pressure driving mechanism and the hydraulic driving mechanism are provided with bottom surfaces, the base is provided with a countersunk through hole from bottom to top, and the bottom surface of the driving mechanism is provided with a blind hole; the fixing part is preferably a bolt, and the bolt fixes the driving mechanism on the base from bottom to top. The top of the driving mechanism is provided with a top surface part, and all the top surface parts form a table top.

According to the screen printer table board provided by the invention, a plurality of table board components consisting of fixing parts, top surface parts and driving mechanisms are arranged above a base, the top surface parts form the table board, and all the top surface parts move up and down through the driving mechanisms; part of the cylinder head moves downwards to form a groove for erecting the PCB. The screen printer table board provided by the invention can form the support frame with corresponding size and shape according to products with different shapes, thereby meeting the production requirements of different products. The table board of the screen printer provided by the invention has the following advantages:

(1) the manufacturing efficiency of the support frame is effectively improved and the production time is saved by combining a computer and a controllable program with an automatic table board;

(2) the automatic table top can form a support frame with corresponding size and shape according to products with different shapes, so that the production requirements of different products are met;

(3) the automatic table-board can be directly cleaned by clean water and dust-free cloth without frequent disassembly and assembly, thereby effectively reducing the harm to human body.

Preferably, when the top surface portions of the plurality of table top assemblies are located at the same height relative to the base, the top surface portions of the plurality of table top assemblies together form a rectangular plane.

Preferably, the top surface portion of the table top assembly is rectangular.

In specific implementation, the top surface part of the table top assembly is square, and all the top surface parts 20 can be shaped and have the same size as required, but the size is not smaller than the size of the driving mechanism; the top surface portions 20 are arranged in a square matrix to form a rectangular plane, so that part of the cylinder heads 20 can be controlled to move downwards according to the actual requirement of the PCB to form grooves 30 for supporting the PCB needing silk-screen printing ink.

Preferably, the top surface part of the table top component is a square with the side length of 5mm-10 mm. According to actual needs, different sizes of top surface parts can be selected.

Preferably, different driving mechanisms can be selected according to production efficiency requirements, and specifically comprise one or more of a cylinder driving mechanism, a motor driving mechanism or a hydraulic driving mechanism.

Preferably, the screen printing machine table-board further comprises a fixing frame which is fixed on the screen printing machine table-board base and can include a plurality of table-board components. .

In particular, the fixing frame 40 (shown in fig. 2) is a frame having an inner frame shape conforming to the shape of the table top, and is used to assemble the cylinder heads 20 constituting the table top more densely (shown in fig. 3), so that the PCB can be supported better after the groove 30 is formed.

Preferably, the edges of the fixed frame 40 are provided with a plurality of notches 41; when the fixing frame 40 is disposed above the fixing base 10, the notch 41 is located in the through hole of the fixing base 10; the air pipe 21 of the cylinder passes through the through hole.

Preferably, a plurality of said cylinders are each independently operable.

In specific implementation, each cylinder can be operated independently, and each cylinder head 20 moves downwards independently, so that grooves in different shapes are formed.

Preferably, a plurality of said cylinders are connected to a control system.

In particular, the control system is configured to control differently shaped recesses of the cylinder head 20.

The invention also provides a using method of the screen printer table board, which comprises the following steps:

s10: acquiring the appearance and the size of a PCB to be silk-screened;

the shape and size of the PCB can be scanned by adopting automatic optical detection; the automatic optical detection technology belongs to the prior art;

in specific implementation, the size of a support area of the screen printer table top for supporting the PCB can be determined according to the PCB information obtained in the step S10; preferably, the shape of the support area is consistent with that of a PCB (printed circuit board) to be placed on the table top, and the size of the support area is slightly smaller than that of the PCB, so that the edge of the groove can be used for supporting the PCB;

in specific implementation, according to the silk-screen printing equipment and the position information of the PCB needing silk-screen printing, the position information of the PCB placed on the table top is determined;

s50: placing the PCB over the support area;

s60: and entering a silk-screen printing process.

Although terms such as fixed base, cylinder head, breather tube, recess, fixed frame and indentation are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a silk screen printing machine mesa which characterized in that includes: the table-board components comprise a fixing part, a top surface part and an air cylinder driving mechanism, the table-board components are fixed on the base through the fixing part, and the top surface part can vertically move under the action of the air cylinder driving mechanism;

when the top surface parts of the plurality of table top components are positioned at the same height relative to the base, the top surface parts of the plurality of table top components jointly form a rectangular plane;

the top surface part of the table top component is rectangular;

the screen printer table-board also comprises a fixed frame which is fixed on the base and can contain a plurality of table-board components;

a plurality of gaps are arranged at the edges of the fixed frame; when the fixed frame is arranged above the base, the notch and the base form a through hole; a vent pipe of the cylinder driving mechanism penetrates through the through hole;

the table top component can operate independently;

the table-board of the screen printer further comprises a control system, and the plurality of cylinder driving mechanisms are connected with the control system.

2. The use method of the table top of the screen printer as claimed in claim 1, characterized by comprising the following steps:

s10: acquiring the appearance and the size of a PCB to be silk-screened;

s20: determining the size and shape of a supporting area of the table top of the screen printing machine for supporting the PCB according to the shape and size of the PCB needing screen printing obtained in the step S10;

s40: determining a supporting area according to the size and the shape of the supporting area determined in the step S20 and the position determined in the step S30, and enabling the top surface part corresponding to the supporting area to move downwards to form a groove;

s50: placing the PCB over the support area;

s60: and entering a silk-screen printing process.