KR101543203B1 - Squeeze device and screen printer having the same - Google Patents

Abstract

The present invention relates to a blade-fixed squeeze device and a screen printer having the same. The blade-fixed squeeze device comprises: a squeeze body coupled to be horizontally moved by the screen printer having a mounting surface arranged on one side surface to be inclined, and an alignment guide part arranged on the mounting surface; a magnet installed in the squeeze body, providing a magnetic force through the mounting surface; a blade aligned by the alignment guide part and then detachably attached to the mounting surface by the magnetic force of the magnet capable of spreading an adhesive; and flow prevention modules mounted on both sides of the squeeze body to fixate both ends of the blade such that the adhesive can be guided to prevent a flow of the adhesive, fixated to be movable in a longitudinal direction of the squeeze body to adjust a gap in accordance to a length of the blade. The present invention quickly and conveniently replaces the blade; has excellent fixation power of the blade; minimizes time and efforts consumed for cleaning; enables different blade sizes to be used; minimizes a phenomenon in which the adhesive such as a solder paste, a cream solder, and like, is attached to or remained in a coupling portion of the blade; reduces costs and time consumed for maintenance and repair; and improves the spreading quality of the adhesive by preventing unnecessary flow of the adhesive such as the solder paste, the cream solder, and the like.

Description

Squeeze device and screen printer having the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blade multi-stationary squeegee apparatus and a screen printer having the same. More particularly, the present invention relates to a blade multi- And more particularly to a blade multi-stationary squeegee device and a screen printer having the blade multi-stationary squeegee device for preventing unnecessary flow of a bonding agent such as solder.

In general, an electronic circuit wiring in which a conductive layer such as a copper film is printed in a predetermined pattern is formed on a printed circuit board embedded as a main component of an electronic apparatus. A small electronic component such as a semiconductor chip or a resistance chip is mounted on the electronic circuit wiring so as to be electrically connected. Screen printing is mainly used as a method for mounting such a small electronic component on a printed circuit board.

Such a screen print is solder bonding a small electronic component such as a semiconductor chip to a printed circuit board by using a solder paste or a cream solder as a bonding agent. The screen print is printed using a squeegee of a screen printer The solder paste is uniformly applied to the wiring of the electronic circuit printed on the circuit board and the conductor lead of the electronic component is placed thereon to cure the solder paste so that the conductor leads of the electronic component are soldered to the wiring of the electronic circuit of the printed circuit board So that they are electrically connected.

A conventional technique for screen printing is disclosed in Korean Patent Laid-Open No. 10-2008-0048662 entitled " Cream lead coating apparatus for a printed circuit board and a method for applying a cream lead using the same, A mask having a through hole formed corresponding to a portion to which cream lead is to be applied on the printed circuit board so as to mount an electronic component on the printed circuit board; And a squeegee for pushing the cream lead placed on the mask so that the cream lead is applied to a portion to which the cream lead is to be applied, The printed circuit board is mounted on the carrier reinforcing plate so as not to move in the front, And a fixing pin protruding from an upper surface of the printed circuit board when the printed circuit board is mounted on the reinforcing board is formed on the carrier reinforcing plate on which the printed circuit board is mounted.

An example of a squeegee device used for screen printing is Korean Patent Laid-Open No. 10-2009-0028247, entitled "Blade device for screen printer ", in which a fixing member with a blade inserted therein is mounted on a holder member and installed in a screen printer. Another example of the squeegee device is a "squeegee blade holder of screen printer " in Korean Patent Laid-Open No. 10-2010-0118378, which includes a moving block coupling bar coupled to the moving block; A blade receiving bar coupled to the moving block coupling bar and providing a first contact surface for supporting a face of the squeegee blade; A blade support bar coupled to the blade support bar to provide a second contact surface for supporting the other side of the squeegee blade; A guide bar coupled to the blade receiving bar and having a guide hole along a longitudinal direction; And a side guide plate for supporting both ends of the blade, the side guide plates being respectively coupled to both sides of the guide bar by adjustment bolts passing through the guide holes.

However, the squeegee device of the prior art is not only difficult to replace the blades, it takes much time and effort to replace the blades, and it is impossible to use blades of different sizes. In addition, It takes a lot of time and cost to maintain and repair the adhesive due to adhering or remaining of the adhesive, and the application quality of the adhesive agent is lowered due to unnecessary flow of the adhesive agent.

In order to solve the above-described problems, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for quickly and easily replacing blades, having excellent fixing power of blades, minimizing time and effort required for cleaning, It is possible to minimize the phenomenon that the bonding agent such as the solder paste or the cream solder adheres to or remains in the bonding portion of the blade, and the cost and time required for the maintenance and repair can be reduced and the unnecessary flow of the bonding agent such as the solder paste or the cream solder So as to improve the coating quality of the bonding agent. Other objects of the present invention will become readily apparent from the following description of the embodiments.

According to an aspect of the present invention, there is provided a squeegee device installed in a screen printer for applying a bonding agent to a printed circuit board using a mask, A squeegee body provided with a mounting surface so as to be inclined to one side surface and having an alignment guide portion on the mounting surface; A magnet provided on the squeegee body to provide a magnetic force through the mounting surface; A blade which is aligned by the alignment guide portion and detachably attached to the mounting surface by the magnetic force of the magnet, and which applies the bonding agent; And guiding the squeegee body on both sides of the squeegee so as to fix both ends of the blade to prevent the flow of the bonding agent. The squeegee body is fixed to the squeegee body so as to be movable along the longitudinal direction thereof, And a flow-restricting module that is spaced apart from the flow-restricting module.

The squeegee body is formed such that a plurality of mounting grooves are spaced apart from each other along the longitudinal direction on the opposite surface of the mounting surface, and the magnet and the fixing member are sequentially mounted together for each mounting groove, So that the mounting recesses are covered with the cover, and the fixing member is brought into close contact with the inside of the mounting recess.

The blade may be formed at both ends of the fixing part so as to be fitted and fixed between the mounting surface and the flow preventing module, and a latching part may be formed on the lower part of the fixing part so as to be hung on the flow preventing module.

The blade may be formed with a stress dispersion groove for dispersing stress at a position where the engaging portion meets.

The flow prevention module includes: a body slidably coupled to a first horizontal slide groove formed along a longitudinal direction of the squeegee body; A horizontal slider coupled to an inner side of the first horizontal slide groove so as to be slidable in a second horizontal slide groove formed along the longitudinal direction and having an end exposed or protruded outward through the body; A tightening bolt screwed to an end of the horizontal slider and fixing the body to the squeegee body by tightening; A vertical slider coupled to the body so as to be slidable up and down; A rotary screw rotatably coupled to the vertical slider and screwed to the body, the rotary screw adjusting a vertical position of the vertical slider according to a rotation direction; And a vertical slider disposed at a lower end of the vertical slider so as to cross the end of the blade, wherein the fixing portion is fixed to the mounting surface and the engagement portion is prevented from moving downward, As shown in Fig.

Wherein the vertical slider is provided with a horizontally extending screw engaging portion spaced upward from the body in a state where the vertical slider is fitted in a slit formed perpendicularly to the body, It can be combined so that the vertical displacement is suppressed in the rotatable state.

The squeegee body being provided at both ends of the squeegee body and each having a groove opening / closing part for opening / closing an end of the second horizontal slide groove, the groove opening / closing part being hinged to an end of the squeegee body, An opening / closing member for opening / closing an end of the horizontal slide groove; And a fixed screw rotatably coupled to the opening and closing member and screwed to the squeegee body.

According to another aspect of the present invention, there is provided a screen printer for applying a bonding agent to a printed circuit board using a mask, the screen printer comprising: a main body having the mask horizontally installed; A substrate transferring unit for transferring the printed circuit board loaded on the main body to be positioned below the mask; A blade multi-stationary squeegee device positioned to face and oppose each other on the mask, according to an aspect of the present invention; A horizontal conveying unit installed on the main body so as to reciprocally convey the horizontal conveying block on which the blade multi-stationary squeezing device is installed, in a horizontal direction on the mask; Wherein the blade multi-stationary squeegee device is moved up and down from the horizontal transport block, and the blade multi-stationary squeegee device is moved downward to be brought into close contact with the mask so as to be horizontally transported, And a controller for controlling the horizontal transfer unit and the elevation driving unit so as to be coated on the printed circuit board through the control unit.

According to the blade multi-stationary squeegee device and the screen printer having the blade multi-stationary squeegee device according to the present invention, the blades are stably and firmly fixed by the magnetic force, and the replacement of the blades is quick and simple by the magnetic force. By fixing the blades, the fixing force of the blades is excellent, the damage can be prevented when the blades are replaced, the time and effort required for cleaning can be minimized, the blades of different sizes can be used, It can be commonly applied to a screen printer.

Further, according to the blade multi-stationary squeegee device and the screen printer having the blade multi-stationary squeegee according to the present invention, not only the mounting space and the residual space of the bonding agent can be minimized, but also the cost and time required for maintenance and repair can be reduced, ), And unnecessary flow of the bonding agent such as solder paste, cream solder and the like can be prevented, and the coating quality of the bonding agent can be improved.

1 is a perspective view showing a screen printer according to an embodiment of the present invention.
2 is a front view showing a screen printer according to an embodiment of the present invention.
3 is a front view illustrating a blade multi-stationary squeegee device in accordance with one embodiment of the present invention.
4 is a rear view illustrating a blade multi-stationary squeegee device in accordance with one embodiment of the present invention.
5 is a perspective view showing a blade separation of a blade multi-stationary squeegee device according to one embodiment of the present invention.
6 is a perspective view showing a blade mounting state of a blade multi-stationary squeegee device according to an embodiment of the present invention.
7 is a perspective view of a blade of a blade multi-stationary squeegee device in accordance with one embodiment of the present invention.
8 is an exploded perspective view of a blade multi-stationary squeegee device according to one embodiment of the present invention.
9 and 10 are side views for explaining the operation of the screen printer according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a computer system according to an embodiment of the present invention; It is to be understood that this particular embodiment is not intended to limit the invention but includes all modifications, equivalents, and alternatives falling within the spirit of the invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or corresponding elements, and redundant description thereof will be omitted do.

FIG. 1 is a perspective view showing a screen printer according to an embodiment of the present invention, and FIG. 2 is a front view showing a screen printer according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, a screen printer 10 according to an embodiment of the present invention is configured to apply a bonding agent such as solder paste, cream solder, etc. to a printed circuit board 20 using a mask 30 And may include a main body 200, a substrate transfer unit 300, a blade multi-stationary squeegee unit 100, a horizontal transfer unit 400, a lifting unit 500, and a controller 600.

The main body 200 is provided with a mask 30 horizontally. To this end, a structure for coupling with the mask 30, including a frame or a bracket to which the mask 30 is fixed, may be provided. And a front opening part 220 having a front surface opened to be visible from the outside can be formed. Further, the main body 200 may have a structure capable of opening the inside thereof.

The substrate transfer unit 300 transfers the printed circuit board 20 loaded on the main body 200 to be positioned below the mask 30. For example, the transfer unit 300 may be formed of a conveyor belt as in the present embodiment, Or a conveying member on which the printed circuit board 20 is mounted, as another example, by using a driving force of a rotary motor or a linear motor, or the like. The substrate transfer unit 300 transfers the printed circuit board 20 between the openings 210 formed at both sides of the main body 200 as in the present embodiment so that the substrate transfer robot 200 or any one of the openings 210 To be unloaded through the opening 210 on the other side. The substrate transferring unit 300 is provided with a sensor for detecting the loading position of the printed circuit board 20, the printing operation position of the lower side of the mask 30, and the unloading position, And unloading, which can be performed by the controller 600, which will be described later.

The blade multi-stationary squeegee apparatus 100 is paired as shown in Figs. 9 and 10 and is positioned by the mask 30 so as to be opposed to each other on the mask 30, thereby being conveyed by the horizontal conveyance unit 400 and the elevation drive unit 500 And presses and scrapes the bonding agent so that the bonding agent is applied on the printed circuit board 20 in a desired pattern form through a pattern drilled in the mask 30. [ The blade multi-stationary squeegee apparatus 100, on the other hand, is a blade multi-stationary squeegee apparatus according to an embodiment of the present invention, which will be described later.

The horizontal transfer unit 400 is installed in the main body 200 so that the horizontal transfer block 410 on which the blade multi-stationary squeegee apparatus 100 is installed is reciprocally transferred on the mask 30 in the horizontal direction. The horizontal transfer block 410 may be moved to transfer the horizontal transfer block 410 or to convert the rotational force of the rotating motor into a linear motion to transfer the horizontal transfer block 410 or to move the horizontal transfer block 410 Can be transferred.

The lifting and lowering drive unit 500 may be installed to vertically move the blade multi-fixed squeezing apparatus 100 from the horizontal transport block 410. For example, the lifting drive unit 500 may be a vertically installed cylinder, The blade multi-stationary squeegee device 100 and the horizontal multi-stationary squeegee device 100 can be elevated and lowered to correspond to each of the blade multi-stationary squeegee devices 100 as in the present embodiment, Respectively.

The controller 600 is lowered and horizontally conveyed so that the blade multi-stationary squeegee apparatus 100 is alternately brought into close contact with the mask 30 so that the bonding agent on the mask 30 is transferred to the printed circuit board The control unit controls the horizontal transfer unit 400 and the elevation driving unit 500 so as to be applied on the printed circuit board 20 by the transfer unit 300. In order to perform screen printing on the printed circuit board 20, ) Can be performed.

The controller 600 may be a variety of information processing devices for performing a control operation for performing a predetermined screen printing process by execution of a program and may include an input unit 610 such as a keyboard and a mouse for inputting data, And a display unit 620 for externally displaying the input data and the operation state of the screen printer 10 and further includes an operation unit 630 for operating the operation of the screen printer 10, A lamp 640 for externally displaying an image, and the like.

FIG. 3 is a front view illustrating a blade multi-stationary squeegee apparatus according to one embodiment of the present invention, and FIG. 4 is a rear view illustrating a blade multi-stationary squeegee apparatus according to an embodiment of the present invention.

3 and 4, a blade multi-stationary squeegee apparatus 100 according to one embodiment of the present invention includes a mask 30 (see FIGS. 1 and 2) on a printed circuit board 20 (shown in FIG. 1) 1 and 2) for applying a bonding agent using a squeegee body 110, a magnet 120 (shown in Fig. 8), a blade 130 Flow prevention module 140. [0033]

The squeegee body 110 is, for example, a member having a length greater than the width of the printed circuit board 20 (shown in Fig. 1) and is coupled to move horizontally by a screen printer 10 (shown in Figs. 1 and 2) For this purpose, the fixing bolt 520 may be fixed to the fixing portion 510 of the lifting drive portion 500 through a screw groove 119b (see FIG. 3) in this embodiment.

Referring to FIG. 5, the squeegee body 110 is provided with a mounting surface 111 so as to be inclined to one side thereof, and the alignment guide portion 112 is provided on the mounting surface 111. The mounting surface 111 may have an inclined angle so that the blade 130 is tilted in a direction to smoothly apply the assembly when the blade 130 is horizontally moved and the blade 130 may be mounted in the longitudinal direction of the squeegee body 110 As shown in FIG. The alignment guide portion 112 may be formed on the upper surface of the mounting surface 111 in a latching manner, for example, so that the upper end of the blade 130 is closely aligned.

8, the magnet 120 is, for example, a permanent magnet. The magnet 120 is installed in the squeegee body 110 and provides magnetic force through the mounting surface 111. To this end, the mounting surface 111 ) To provide a magnetic force.

The squeegee body 110 may be formed such that a plurality of mounting grooves 113 are spaced apart from each other along the longitudinal direction on the opposite surface of the mounting surface 111 and the magnet 120 and the fixing member And the fixing member 114 covers the entire surface of the magnet 120 by means of the cover 115 installed on the opposite surface of the cover 115 in the longitudinal direction. So that it can be closely attached to the inside of the mounting groove 113. That is, the mounting groove 113 is formed in the squeegee body 110 so as to face the mounting surface 111 on the opposite side of the mounting surface 111, the magnet 120 is first mounted on the inner side, The fixing member 114 may be made of elastic rubber or synthetic resin. The cover 115 can be fixed by fitting the fixing holes 115a formed at both ends of the cover 115 into the fixing protrusions 115b formed at both ends of the opposite side of the mounting surface 111 from the squeegee body 110, May be fixed by various methods and structures, for example bolting or bracketing.

5, the blade 130 is detachably attached to the mounting surface 111 by the magnetic force of the magnet 120 (shown in FIG. 8) and aligned by the alignment guide portion 112, and the solder paste or cream solder And may be made of a variety of materials suitable for application of a bonding agent, such as a metal material, a synthetic resin, or a rubber, and may be formed of a plate-shaped long member. The blade 130 may have various sizes and may be replaceably mounted on the mounting surface 111 by means of the magnet 120. The blade 130 may have a length of 200 to 440 mm, And may have an inclination of 30 to 60 degrees with respect to the horizontal plane. The blade 130 is mechanically fixed by the flow prevention module 140 in addition to the magnetic force by the magnet 120.

7, a fixing portion 131 is formed at both ends of the blade 130 so that the blade 130 is fitted and fixed between the mounting surface 111 and the blocking member 146, And the latching portion 131a may be formed at the lower portion of the fixing portion 131 so as to be hung on the flow preventing module 140, specifically, the blocking member 146 to be described later. The blade 130 may be formed with a stress dispersion groove 132 for dispersing stress at a position where the latching portion 131a meets, that is, at a position where the latching portion 131a starts and the two sides meet. The stress dispersion grooves 132 may have a circular shape with one side opened. Also, the blade 130 may be formed with a hole 133 for preventing deformation in the diagonal direction of the stress dispersion groove 132 and for checking the position of the coupling.

4 and 8, the flow prevention module 140 is mounted on the squeegee body 110 to fix both ends of the blade 130 to guide the flow of the bonding agent, The distance of the blade 110 is adjusted according to the length of the blade 110.

The flow prevention module 140 includes a body 141 that is slidably coupled to the first horizontal slide groove 116 formed along the length direction of the squeegee body 110, A horizontal slider 142 slidably coupled to the second horizontal slide groove 117 formed along the longitudinal direction and exposed or protruded outward through the body 141, A tightening bolt 143 screwed to an end of the body 141 to fix the body 141 to the squeegee body 110 by tightening, a vertical slider 144 coupled to the body 141 so as to be slidable up and down, A rotary screw 145 that is rotatably coupled to the body 144 and is screwed to the body 141 and adjusts the vertical position of the vertical slider 144 according to the rotation direction, And crosses the end of the blade 130 And may include a blocking member 146 for blocking the flow of the bonding agent so that the fixing portion 131 is fixed to the mounting surface 111 and the locking portion 131a is prevented from moving downward .

The body 141 is slidably engaged with the first horizontal slide groove 116 along the longitudinal direction of the squeegee body 110 by the sliding engagement portion 141a provided at one side thereof to be separated from the squeegee body 110, A through hole 141b may be formed to penetrate the horizontal slider 142 and a vertical slit 141c may be formed such that the vertical slider 144 is vertically movably mounted.

The horizontal slider 142 is slidably engaged with the second horizontal slide groove 117 so that the sliding engagement portion 142a at the end of the horizontal slider 142 is prevented from being separated from the squeegee body 110, (141b).

The tightening bolt 143 is screwed to the horizontal slider 142 through the through hole 141b and the body 141 and the horizontal slider 142 are fastened to the inner side of the first and second horizontal slide grooves 116, So that the body 141 and the horizontal slider 142 are fixed so that the body 141 and the horizontal slider 142 can move along the first and second horizontal slide grooves 116 and 117 .

The vertical slider 144 may be provided with a screw coupling portion 144a which is horizontally spaced upward from the body 141 in a state where the vertical slider 144 is fitted in the slit 141c formed to be perpendicular to the body 141, The vertical slider 144 is screwed to the upper end of the body 141 by tightening and loosening so that the rotary screw 145 is rotatable about the vertical axis, The height of the blocking member 146 located at the lower end of the vertical slider 144 is adjusted.

The rotary screw 145 is rotatably coupled to the screw engaging portion 144a of the vertical slider 144 so as to be rotatably engaged with the screw 142. The lower end of the rotary screw 145 is screwed to the body 141 and the vertical slider 144 Up and down.

The blocking member 146 may be formed horizontally at the lower end of the vertical slide 144 and may be made of a material such as silicon or the like and may be installed so as to cross at the end of the blade 130 with a "T" The engaging portion 131a of the blade 130 is hooked on the upper end of the stage that supports the lower end of the mounting surface 111 so that the downward departure of the blade 130 can be prevented.

The groove opening and closing part 150 may be provided at both ends of the squeegee body 110. [ Here, the groove opening / closing parts 150 are formed in pairs at both ends of the squeegee body 110, and each opens / closes the end of the second horizontal slide groove 117.

The groove opening and closing part 150 includes an opening and closing member 151 hinged to the end of the squeegee body 110 and opening and closing the end of the second horizontal slide groove 117 by rotation, And a fixed screw 152 that is coupled to the squeegee body 110 and screwed to the squeegee body 110. [ The opening and closing member 151 includes a hinge shaft 118 which is horizontally provided in the receiving groove 118a in a state where the hinge engaging portion 151a provided at the upper end is accommodated in the receiving groove 118a formed at the end of the squeegee body 110, As shown in FIG. Therefore, the opening and closing member 151 is vertically folded upward so that the second horizontal slide groove 117 is opened and the second horizontal slide groove 117 117 to allow removal of the horizontal slider 142, thereby enabling the detachment of the flow prevention module 140. The fixed screw 152 passes through the through hole 151b formed in the opening and closing member 151 and is screwed into the screw groove 119a formed at the end of the squeegee body 110 to thereby permit or inhibit the rotation of the opening and closing member 151 .

The operation of the blade multi-stationary squeegee device and the screen printer having the blade multi-stationary squeegee device according to the present invention will now be described.

The blade multi-stationary squeegee apparatus 100 is lowered and horizontally conveyed so as to be brought into close contact with the mask 30 by the control of the horizontal conveyance unit 400 and the elevation drive unit 500 by the controller 600, 30 are applied onto the printed circuit board 20 through the pattern of the mask 30 so that any one of the blade multi-stationary squeegee devices 100 installed side by side facing each other as shown in FIG. 9 1 and 2) by moving the horizontal transfer unit 400 (shown in Figs. 1 and 2) in a state in which the wafer W is lowered by the driving of the lifting drive unit 500 and brought into close contact with the mask 30, To be applied onto the printed circuit board (20). Then, the blade multi-stationary squeegee device 100 to which the bonding agent is applied is raised by the elevation drive unit 500 to return to the original position.

Then, as shown in FIG. 10, the other one of the blade multi-stationary squeegees 100 installed side by side facing each other is lowered by the driving of the elevation drive unit 500 and is brought into close contact with the mask 30 , And moving the reverse direction by driving the horizontal transfer unit 400 (shown in Figs. 1 and 2), so that the bonding agent on the mask 30 is applied onto the printed circuit board 20. [

In addition, since the blade 130 is replaceably fixed by the magnet 120, it is possible to quickly and simply replace the blade 130, to prevent damage when the blade 130 is replaced, Effort can be minimized. The blades 130 can be used in different sizes by the replacement of the blades 130 and can be commonly applied to screen printers of all makers.

In addition, the remaining space of the bonding agent can be minimized by the mounting structure of the blade 130 according to the present invention, and the cost and time required for maintenance and repair can be reduced, quick tooling is possible, It is possible to prevent an unnecessary flow of the bonding agent such as cream solder or the like and to improve the coating quality of the bonding agent.

The blade 130 is fixed by the coupling structure of the blocking member 146 of the flow prevention module 140 in addition to the magnetic force by the magnet 120 so that the blade 130 is fixed to the mounting surface 111 It is possible to maintain a firmly fixed state. 5, first, the rotary screw 145 is rotated to move the blocking member 146 downward, thereby moving the blocking member 146 between the blocking member 146 and the mounting surface 111 The blade 130 is attached to the mounting surface 111 by the magnetic force of the magnet 120 so that the upper end of the blade 130 is supported and aligned by the alignment guide portion 112 So that the fixed portion 131 of the blade 130 is positioned in the gap between the mounting surface 111 and the blocking member 146. [ Then, the rotary screw 145 is rotated in the reverse direction so that the blocking member 146 moves upward to press the fixing portion 131 to come into close contact with the mounting surface 111. At this time, the latching portion 131a is caught by the blocking member 146 so that the blade 130 is more firmly fixed.

Although the present invention has been described with reference to the accompanying drawings, various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the above-described embodiment, but should be determined by the claims and equivalents thereof.

10: Screen printing 20: Printed circuit board
30: mask 100: blade multi-stationary squeegee device
110: squeegee body 111: mounting face
112: alignment guide portion 113: mounting groove
114: fixing member 115: cover
115a: Fixing hole 115b: Fixing projection
116: first horizontal slide groove 117: second horizontal slide groove
118: Hinge shaft 118a: receiving groove
119a: screw groove 119b: screw groove
120: Magnet 130: Blade
131: fixing portion 131a:
132: stress distribution groove 133: hole
140: flow prevention module 141: body
141a: sliding engagement portion 141b: through hole
141c: slit 142: horizontal slider
142a: sliding coupling portion 143: tightening bolt
144 vertical slider 144a screw-
145: rotating screw 146: blocking member
150: groove opening / closing part 151:
151a: Hinge connecting part 151b: Through hole
152: fixed screw 200: main body
210: opening 220: front opening
300: substrate transferring part 400: horizontal transfer part
410: Horizontal transport block 500:
510: fixing part 520: fixing bolt
600: controller 610: input unit
620: display section 630:
640: Lamp

Claims (8)

A squeegee device mounted on a screen printer for applying a bonding agent to a printed circuit board using a mask,
A squeegee body coupled horizontally by the screen printer, the squeegee body being provided with a mounting surface so as to be inclined to one side thereof and having an alignment guide portion on the mounting surface;
A magnet provided on the squeegee body to provide a magnetic force through the mounting surface;
A blade which is aligned by the alignment guide portion and detachably attached to the mounting surface by the magnetic force of the magnet, and which applies the bonding agent; And
The squeegee body is mounted on both sides of the squeegee body so as to fix both ends of the blade, and is guided to prevent the flow of the bonding agent. The squeegee body is fixed to be movable in the longitudinal direction of the squeegee body, A flow-restricting module that is spaced apart,
The blade
A fixing part is formed at both ends so as to be fitted and fixed between the mounting surface and the flow prevention module, and a locking part is formed at a lower part of the fixing part so as to be hung on the flow prevention module,
The flow-
A body slidably coupled to the first horizontal slide groove formed along the longitudinal direction of the squeegee body;
A horizontal slider coupled to an inner side of the first horizontal slide groove so as to be slidable in a second horizontal slide groove formed along the longitudinal direction and having an end exposed or protruded outward through the body;
A tightening bolt screwed to an end of the horizontal slider and fixing the body to the squeegee body by tightening;
A vertical slider coupled to the body so as to be slidable up and down;
A rotary screw rotatably coupled to the vertical slider and screwed to the body, the rotary screw adjusting a vertical position of the vertical slider according to a rotation direction; And
The vertical slider is provided at a lower end of the vertical slider so as to cross the end of the blade and fixes the fixing part to the mounting surface and the movement of the engagement part is suppressed downward, And a blocking member. The method according to claim 1,
The squeegee body includes:
A plurality of mounting grooves are formed along the longitudinal direction on the opposite surface of the mounting surface so as to have an interval, the magnet and the fixing member are sequentially mounted together for each mounting groove, and the magnet is mounted on the opposite surface along the longitudinal direction So that all of the mounting grooves are covered by the cover, and the fixing member brings the magnet into close contact with the inside of the mounting groove. delete The method according to claim 1,
The blade
Wherein a stress distributing groove is formed for distributing stress at a position where the latching portion meets. delete The method according to claim 1,
Wherein the vertical slider comprises:
And a screw connecting portion which is horizontally spaced upward from the body in a state of being fitted to a slit formed perpendicularly to the body and is provided with a screw connection portion which is vertically rotatable about an axis ≪ / RTI > wherein the abutment is engaged to inhibit disengagement. The method according to claim 1,
A groove opening and closing part provided at both ends of the squeegee body and each opening and closing an end of the second horizontal slide groove,
The groove opening /
An opening / closing member hinged to an end of the squeegee body and opening / closing an end of the second horizontal slide groove by rotation; And
A fixed screw rotatably coupled to the opening / closing member and screwed to the squeegee body;
The blade multi-stationary squeegee device. A screen printer for applying a bonding agent to a printed circuit board using a mask,
A main body having the mask horizontally installed therein;
A substrate transferring unit for transferring the printed circuit board loaded on the main body to be positioned below the mask;
The blade multi-stationary squeegee device according to any one of claims 1, 2, 4, 6, and 7, positioned so as to be opposed to each other on the mask.
A horizontal conveying unit installed on the main body so as to reciprocally convey the horizontal conveying block on which the blade multi-stationary squeezing device is installed, in a horizontal direction on the mask;
A lifting and driving unit installed to raise and lower the blade multi-stationary squeegee device from the horizontal transport block;
The blade multi-stationary squeegee apparatus is alternately lowered and horizontally fed so as to be closely contacted with the mask so that the bonding agent on the mask is applied to the printed circuit board through the pattern of the mask, And a controller for controlling the printer.

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