KR101656815B1 - PCB separation device for screen printer - Google Patents
PCB separation device for screen printer Download PDFInfo
- Publication number
- KR101656815B1 KR101656815B1 KR1020160023878A KR20160023878A KR101656815B1 KR 101656815 B1 KR101656815 B1 KR 101656815B1 KR 1020160023878 A KR1020160023878 A KR 1020160023878A KR 20160023878 A KR20160023878 A KR 20160023878A KR 101656815 B1 KR101656815 B1 KR 101656815B1
- Authority
- KR
- South Korea
- Prior art keywords
- circuit board
- printed circuit
- plate
- conveyor
- mask plate
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/24—Stencils; Stencil materials; Carriers therefor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1216—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by screen printing or stencil printing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Screen Printers (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The present invention relates to a printed circuit board separating apparatus for screen printers for screen printing a lead-in printed circuit board on a mask plate, and then separating the printed circuit board from the mask plate, comprising: a front conveyor supporting one side of the lower surface of the mask plate; A conveyor unit having a rear conveyor that is spaced from the front conveyor and supports the other side of the lower surface of the mask plate, and a conveyor belt installed on each of the inner sides of the front and rear conveyors to move the printed circuit board; A back-up unit provided at a lower portion of the conveyor unit and configured to be raised and lowered, and a backup pin secured to the upper portion of the backup plate and capable of supporting the lower surface of the printed circuit board when lifted up; An inner plate disposed on the inside of the front and rear conveyors so as to be movable upward and downward and a steel guide formed on the inner plate and fixed to both ends of the printed circuit board by the operation of the rear conveyor, A clamping unit configured; Wherein the clamping unit is supported by the clamping unit so that the clamping unit is fixed to the mask plate when the backup plate is moved up, and the clamping unit is lowered when the backup plate is lowered And a connection unit for separating the printed circuit board from the mask plate. The present invention also provides a printed circuit board separator for a screen printer.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a printed circuit board separating apparatus for a screen printer, in which a printed circuit board bonded to a mask plate after screen printing on a printed circuit board is stably separated while maintaining the original shape of a printed cream solder And a printed circuit board separator for a screen printer.
Surface mounter technology (SMT) is a technology that mounts components such as semiconductors, diodes, or chips on a printed circuit board (PCB) using a number of equipment and performs the function of hardening them to be. Such a surface mounting technique may include a loading process for supplying a line to a line using a device for automatically feeding a printed circuit board, a screen printing process for applying cream solder on a printed circuit board using a metal mask, Solder printing inspection process to check whether cream solder is printed on the top of circuit board in a fixed amount, mounting process to place the part on the printed circuit board at a predetermined position, bonding substrate and parts with cream solder melting A reflow soldering process, and an automatic optical inspection process that automatically checks and corrects component mounting defects on the printed circuit board.
Among them, a screen printer for surface mounting for a screen printing process is a cream solder type which can be installed by attaching a circuit (IC) or various kinds of resistance parts to each contact space on the surface of a printed circuit board type lead. Such a screen printer includes a conveyor for transferring a printed circuit board to a work section, a clamping device for fixing the transferred printed circuit board, a position error between the clamped printed circuit board and a metal mask for cream solder printing An alignment device for correcting the position of the printed circuit board with the calculated error, a vertical transfer device for transferring and aligning the aligned printed circuit board to the bottom surface of the mask provided at the upper part, A squeegee for putting the cream solder placed on the surface of the mask having the input hole corresponding to each contact space of the printed circuit board into each contact space of the printed circuit board; An unloading field for transferring the separated printed circuit board to the next process, Etc. The
Such a screen printer moves a printed circuit board through a conveyor to a working position and adjusts the position of the printed circuit board by confirming the position of the recognition mark provided on the printed circuit board and the position of the recognition mask provided on the printed circuit board with a camera. Thus, after the respective injection holes of the mask are precisely aligned on the upper portions of the respective contact spaces of the printed circuit board, the work conveyor is brought into contact with the contact space of the printed circuit board at the lower portions of the respective injection holes of the mask. Then, the cream solder, which is located at one side of the surface of the mask, is passed through each of the injection holes of the mask pattern by moving the squeegee forward and backward so that the cream solder falling down into each of the injection holes of the mask can be applied to each contact space of the printed circuit board It will be. In the screen printer for mounting a printed circuit board surface, a conveyor for conveying a printed circuit board is divided into an input portion, a center portion, and a discharge portion. The printed circuit board inserted through the input portion conveyor is moved to the center portion conveyor, After the cream solder application on the conveyor, the printed circuit board is discharged to the outside through the discharge conveyor.
Referring to FIG. 10, the printed circuit board P conveyed to the
SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method of manufacturing a display device in which a cream solder applied to a printed circuit board is removed by separating a printed circuit board from a mask plate, Which can be separated from the opening of the mask plate in an integral state, thereby improving the print quality of the printed circuit board.
According to an aspect of the present invention, there is provided a printed circuit board separating apparatus for a screen printer for separating a printed circuit board from a mask plate by lowering the printed circuit board after screen printing the drawn printed circuit board on a mask plate, And a conveyor belt installed on each of the inside and outside of the front and rear conveyors to move the printed circuit board therebetween. The conveyor belt includes a front conveyor supporting one side of the lower surface, a rear conveyor spaced from the front conveyor and supporting the other side of the lower surface of the mask plate, Conveyor unit; A back-up unit provided at a lower portion of the conveyor unit and configured to be raised and lowered, and a backup pin secured to the upper portion of the backup plate and capable of supporting the lower surface of the printed circuit board when lifted up; An inner plate disposed on the inside of the front and rear conveyors so as to be movable upward and downward and a steel guide formed on the inner plate and fixed to both ends of the printed circuit board by the operation of the rear conveyor, A clamping unit configured; Wherein the clamping unit is supported by the clamping unit so that the clamping unit is fixed to the mask plate when the backup plate is moved up, and the clamping unit is lowered when the backup plate is lowered And a connection unit for separating the printed circuit board from the mask plate, wherein the connection unit is provided between the backup plate and the steel guide, A lower engaging member connected to the upper engaging member and lowered to be positioned below the backup plate, and a lower engaging member provided on each of the inner plates, for fixing or fixing the upper engaging member to the inner plate by forward and backward movement of the rod, Wherein the flexible printed circuit board is composed of a cylinder which can be detachably interlocked. Separation device.
According to the present invention having the above-described configuration, the following effects can be expected.
The printed circuit board is fixed and separated by using the backup plate operated up and down in the Z-axis direction when backing up the printed circuit board on the table, and the printed circuit board is separated from the mask plate with the center conveyor supporting the mask plate The printed circuit board can be separated from the mask plate regardless of the warpage of the mask plate, thereby contributing to the improvement in production with stable quality in the mounting line (SMT line).
1 is a perspective view of a PCB separator for a screen printer according to an embodiment of the present invention;
Fig. 2 is a front view of a printed circuit board separator for a screen printer showing a printed circuit board and a mask plate in close contact with each other. Fig.
Fig. 3 is a front view of a printed circuit board separating apparatus for a screen printer in which a printed circuit board and a mask plate are spaced apart from each other; Fig.
4 is a perspective view of the conveyor unit;
5 is a rear view of the rear conveyor;
6 is an enlarged view of an inner plate and a steel guide.
7 is a simplified illustration of a connecting unit when the backup plate is lifted.
Fig. 8 is a simplified illustration of a connecting unit when the backup plate is lowered. Fig.
9 (a) is a perspective view of the connecting unit.
9 (b) is a side view of the cylinder advancement.
9 (c) is a cylinder back side view.
10 is an exemplary view of a conventional printed circuit board clamping device;
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view of a PCB separator for a screen printer according to an embodiment of the present invention, FIG. 2 is a front view of a PCB separator for screen printer showing a printed circuit board and a mask plate in close contact with each other, Is a front view of a printed circuit board separating apparatus for a screen printer in which a printed circuit board and a mask plate are spaced apart from each other.
Referring to FIG. 1, the present invention relates to a method of manufacturing a printed circuit board (P), in which a conveyor and a back-up unit are lifted up by a lead-in printed circuit board (P) P is lowered and separated from the mask plate (M).
2 and 3, the
First, the
The
A
A
Here, the
The
The
Here, the table 220 is formed of a motor and a screw shaft so that the
The
The
The
Fig. 4 is a perspective view of the conveyor unit, Fig. 5 is a rear view of the rear conveyor, and Fig. 6 is an enlarged view of the inner plate and the steel guide.
Referring to FIGS. 4, 5 and 6, the
Here, the
The
The inner plate may further include a
Here, the sliding movement is performed by the LM block 350 and the LM guide in the upward and downward directions on the rear surface of the inner plate, and is returned to the original position by the tension of the vertical spring device. Here, the spring device is also attached to the rear surface of the inner plate.
Fig. 7 is a simplified illustration of the connecting unit when the backup plate is lifted, and Fig. 8 is a simplified illustration of the connecting unit when the backup plate is lifted.
Referring to FIGS. 7 and 8, the connecting
The
And is connected to the operation of the backup plate. When the
The operation of the connecting unit involves the cylinder. When the rod is advanced, the inner plate and the connection unit are disconnected. When the rod is moved backward, the inner plate and the connection unit are connected by the circular plate attached with the rod, so that the connection unit and the inner plate interlock with each other when the backup plate is lowered .
The reason why the printed circuit board is separated from the mask plate before the center conveyor is lowered in the printing process is that when the center conveyor is lowered while the printed circuit board is in close contact with the mask plate, A tensile force of the blade is generated and the squeegee presses the mask plate by the residual air pressure of the cylinder, so that the mask plate is warped and the printed circuit board is affected by the warping of the mask plate and the cream solder applied to the printed circuit board is deformed And the residual solder may be generated on the mask plate after printing. This causes deterioration of the print quality, so that the printed circuit board is separated from the mask plate before the center conveyor falls.
Fig. 9 (a) is a perspective view of the connecting unit, Fig. 9 (b) is a front view of the cylinder, and Fig. 9 (c) is a rear view of the cylinder.
The connecting
The
The
The reason why the printed circuit board is separated from the mask plate before the center conveyor (in the present invention, the screen printed-circuit board separating apparatus for a screen printer) descends in the printing process is that the center- When the pressure is lowered, the squeegee blade pressing force on the mask plate is generated and the squeegee presses the mask plate due to the residual air pressure of the cylinder, causing the mask plate to warp and the printed circuit board The solder applied to the printed circuit board may be deformed and the residual solder may be generated on the mask plate after printing, which causes the printing quality to be degraded, so that the printed circuit board is removed from the mask plate First, remove it. Therefore, according to the present invention, the clamping unit clamps the printed circuit board to the mask plate by the connecting unit and the cylinder which are operated by the interlocking operation of the backup plate, and the printed circuit board is moved in the vertical direction To separate the coated cream solder on the printed circuit board regardless of the warping of the mask plate to maintain the roundness of the cream solder applied to the printed circuit board and reduce the amount of residual solder in the mask plate openings to reduce clogging, There is an advantage that quality is improved.
It will be understood by those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Of course, many other variations are possible.
100: Conveyor unit 120: Front conveyor
140: rear conveyor 160: conveyor belt
200: backup unit 220: table
240: Backup plate 260: Backup pin
300: clamping unit 320: inner plate
340: steel guide 400: connection unit
420: upper latching member 440: lower latching member
460: cylinder 480: damper
Claims (6)
A front conveyor 120 supporting one side of the lower surface of the mask plate, a rear conveyor 140 spaced from the front conveyor and supporting the other side of the lower surface of the mask plate, A conveyor unit (100) comprising a conveyor belt (160) for moving the substrate;
A backing unit 240 installed at a lower portion of the conveyor unit 100 to be lifted up and a backup pin 260 fixed to the upper portion of the backing plate and capable of supporting the lower surface of the printed circuit board when lifted up, );
An inner plate 320 installed on the inside of the front and rear conveyors so as to be movable upward and downward, and an inner plate 320 formed on the inner plate so as to be in close contact with both ends of the printed circuit board by the operation of the rear conveyor A clamping unit 300 composed of a steel guide 340; And
Wherein the clamping unit is fixed to the mask plate by the clamping unit so that the clamping unit can be closely fixed to the mask plate when the backup plate is lifted and the clamping unit is lowered when the backup plate is lowered, And a connection unit (400) for separating the printed circuit board from the mask plate,
The connection unit (400)
An upper engaging member 420 provided between the backup plate and the steel guide for supporting the steel guide when the backup plate is lifted, a lower engaging member 420 connected to the upper engaging member, And a cylinder (460) installed at each of the inner plates and capable of interlocking the upper latching member to the inner plate in a fixed or detachable manner by forward and backward operation of the rod. For separating the printed circuit board.
The upper latching member (420)
A horizontal axis 422 provided on the backup plate,
And a U-shaped support (424) mounted on the horizontal axis and adapted to move inward and transverse to the cylinder rod to move the cylinder rod forward or backward and to be closely contacted with or spaced from the one surface and having an upper end closely contactable with the steel guide. For separating the printed circuit board.
Between the upper latching member 420 and the lower latching member 440,
And a damper (480) for relieving the impact.
In the inner plate 320,
Further comprising a vertical spring device connected to the front conveyor, the rear conveyor and the inner side, respectively, to vertically support the clamping unit against the downward force.
In the inner plate 320,
And a horizontal spring device connected horizontally to the inner side of the rear conveyor to elastically support the side surface of the circuit board by the steel guide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160023878A KR101656815B1 (en) | 2016-02-29 | 2016-02-29 | PCB separation device for screen printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160023878A KR101656815B1 (en) | 2016-02-29 | 2016-02-29 | PCB separation device for screen printer |
Publications (1)
Publication Number | Publication Date |
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KR101656815B1 true KR101656815B1 (en) | 2016-09-12 |
Family
ID=56950456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020160023878A KR101656815B1 (en) | 2016-02-29 | 2016-02-29 | PCB separation device for screen printer |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101806434B1 (en) | 2017-02-17 | 2017-12-07 | 주식회사 이노티스 | Repositioning Memory Backup Unit For Screen Printer |
CN111417902A (en) * | 2017-11-24 | 2020-07-14 | 梵尼克斯有限公司 | Printing screen frame fixing device |
CN112247748A (en) * | 2020-10-28 | 2021-01-22 | 德中(天津)技术发展股份有限公司 | SMT steel mesh equipment of polishing |
Citations (5)
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KR20050036979A (en) * | 2002-08-30 | 2005-04-20 | 마쯔시다덴기산교 가부시키가이샤 | Screen printing method |
KR101226762B1 (en) | 2011-02-17 | 2013-02-12 | 주식회사이에스이 | Fixing apparatus for preventing movement of Printed Circuit Board |
KR20140047909A (en) * | 2012-10-15 | 2014-04-23 | (주)엠시스 | Screen printer having support device of stencil mask |
JP2014083788A (en) * | 2012-10-25 | 2014-05-12 | Panasonic Corp | Screen printing apparatus and setting method of base plate clamp position in the same |
KR20150112171A (en) * | 2014-03-27 | 2015-10-07 | 유원근 | Apparatus for reducing pressure in screen printer and Method for printing substrate using the same |
-
2016
- 2016-02-29 KR KR1020160023878A patent/KR101656815B1/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050036979A (en) * | 2002-08-30 | 2005-04-20 | 마쯔시다덴기산교 가부시키가이샤 | Screen printing method |
KR101226762B1 (en) | 2011-02-17 | 2013-02-12 | 주식회사이에스이 | Fixing apparatus for preventing movement of Printed Circuit Board |
KR20140047909A (en) * | 2012-10-15 | 2014-04-23 | (주)엠시스 | Screen printer having support device of stencil mask |
JP2014083788A (en) * | 2012-10-25 | 2014-05-12 | Panasonic Corp | Screen printing apparatus and setting method of base plate clamp position in the same |
KR20150112171A (en) * | 2014-03-27 | 2015-10-07 | 유원근 | Apparatus for reducing pressure in screen printer and Method for printing substrate using the same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101806434B1 (en) | 2017-02-17 | 2017-12-07 | 주식회사 이노티스 | Repositioning Memory Backup Unit For Screen Printer |
CN111417902A (en) * | 2017-11-24 | 2020-07-14 | 梵尼克斯有限公司 | Printing screen frame fixing device |
CN111417902B (en) * | 2017-11-24 | 2023-07-25 | 梵尼克斯有限公司 | Printing screen frame fixing device |
CN112247748A (en) * | 2020-10-28 | 2021-01-22 | 德中(天津)技术发展股份有限公司 | SMT steel mesh equipment of polishing |
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