KR20130052933A - Apparatus for providing solder cream used in screen printer - Google Patents

Abstract

PURPOSE: A solder cream supplying device for a screen printer is provided to precisely control the supply amount of the solder cream by preventing waste and pollution of the solder cream. CONSTITUTION: A solder cream supplying device for a screen printer comprises a cartridge, a pressing cylinder, and a cartridge holder. An opening/closing nozzle discharging solder cream downwardly or blocking the discharge of the solder cream is mounted in a mounting hole formed in the center of the cartridge holder. The opening/closing nozzle includes an upper joining member(10), a sliding member(30), a lower joining member(50), and a guide member(70). The upper joining member includes a sliding unit(13) in one direction of the upper joining member. A second outflow hole connected to a first outflow hole(12) is formed on the center of the top surface of the sliding unit. The sliding member is inserted into the sliding unit, thereby horizontally reciprocating. The lower joining member is joined to the upper joining member and includes a fourth outflow hole(51) in the center.

Description

Solder cream supply for screen printers {apparatus for providing solder cream used in screen printer}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solder cream supply device for a screen printer, and more particularly, by mounting an opening and closing nozzle in a cartridge holder for supporting and seating a cartridge filled with solder cream, thereby discharging the solder cream downwardly through the opening and closing nozzle. In this case, the opening and closing nozzles are opened, and when the solder cream is not discharged downwardly through the opening and closing nozzles, the opening and closing nozzles are blocked and at the same time, air pressure is applied to remove the solder cream remaining in the opening and closing nozzles. It relates to a solder cream supply device for a screen printer.

A screen printer prints by placing a screen mask on which the shape of the printing film is patterned on the printing surface of the printing object, applying solder cream onto the screen mask, compressing it with a squeegee, and transferring it onto the printing surface. The device to proceed.

The screen printer includes various driving units, and includes a solder cream supply device for supplying solder cream onto a screen mask.

A conventional solder cream supply device for a conventional screen printer is disposed on an upper portion of a mask 2 disposed on an upper surface of a substrate 1 to be printed, and discharges solder cream downward.

A schematic configuration of the conventional solder cream supply device for screen printers includes a cartridge 3 containing solder cream, an open top portion, and a solder cream discharge port 3a formed at the center of a lower surface thereof, and the cartridge. A pressurizing cylinder (4) and a cartridge (3) seated and supported on the upper surface to apply an input to the solder cream so that the solder cream can be led downward through the solder cream discharge port (3a); And a cartridge holder (5) communicating with the solder cream discharge port (3a) and having a discharge hole (5a) for guiding the discharged solder cream to the mask (2).

As described above, the conventional cartridge 3 is formed with a solder cream discharge opening 3a through which the upper side is opened and the solder cream is discharged on the lower side. However, in the conventional solder cream supply device for screen printers, the solder stored in the cartridge 3 is stopped when the supply of the solder cream is stopped in the middle of the process of feeding the solder cream to the mask 2 by linearly moving the pressure cylinder 4. The cream naturally falls through the solder cream discharge port 3a and the discharge hole 5a, which causes the waste of the snow cream, the equipment is contaminated, and it is difficult to precisely control the supply amount of the solder cream.

The present invention has been made to solve the above problems of the prior art, by mounting an opening and closing nozzle in the cartridge holder for supporting and seating the cartridge filled with the solder cream, the solder cream through the opening and closing nozzle downward When discharging, the opening / closing nozzle is opened, and when the solder cream is not discharged downward through the opening / closing nozzle, the opening and closing nozzle is blocked and at the same time, air pressure is applied to remove the solder cream remaining in the opening / closing nozzle. It is an object of the present invention to provide a solder cream supply device for a screen printer.

It also prevents the free fall of the cream solder from the cartridge after a long period of inactivity, preventing screening of the cream solder, preventing equipment contamination, and precisely controlling the supply of solder cream. It is an object to provide a supply device.

The constituent means of the solder cream supply device for the screen printer of the present invention proposed to solve the above problems, the cartridge containing the solder cream, the top is open, the solder cream outlet is formed in the center of the lower surface And a pressurized cylinder installed on the upper surface of the cartridge to apply pressure to the solder cream, and a cartridge holder for seating and supporting the cartridge.

The mounting hole formed in the center portion of the cartridge holder is equipped with an opening and closing nozzle for discharging the solder cream extruded from the solder cream discharge port of the cartridge downward or blocking the discharge of the solder cream,

The opening and closing nozzle,

The upper center portion is recessed to form a recess, and a first outlet hole is formed at the center portion of the recess bottom surface, and the upper surface is recessed upward, and a sliding portion is formed in one direction, and the upper surface center of the sliding portion is formed. The upper coupling member is formed with a second outlet hole communicating with the first outlet hole, the horizontal portion is inserted into the sliding portion to reciprocate horizontally, having a length less than the length of the sliding portion is inserted into the sliding portion, And a vertical portion extending vertically downward from both ends of the horizontal portion, wherein the horizontal portion has a third communicating with the second outlet hole when one end of the horizontal portion coincides with one end of both ends of the sliding portion. Sliding member is formed with an outlet hole, fixedly coupled to the upper coupling member, the opposite sides facing each other is processed A locking portion for engaging the vertical portion of the riding member is formed on both sides facing each other, and a lower coupling member having a fourth outlet hole formed on the same vertical line as the second outlet hole, and a depression of the upper coupling member. Is inserted into and guides the solder cream to the first outlet, characterized in that it comprises a guide member in pressure communication with the solder cream discharge port of the cartridge.

In addition, the upper coupling member may further include a first air inflow passage that is opened from one side to one side of the sliding portion, and the horizontal portion of the sliding member may communicate with the first air inflow passage on the side of the second air. And an air inlet discharge groove formed in the lower surface of the horizontal portion to discharge air introduced from the second air inlet passage adjacent to the third outlet hole to the fourth outlet hole of the lower coupling member. Characterized in that.

In addition, the sliding member is characterized in that the pneumatic pressure provided from the air passage formed inside the cartridge holder presses the vertical portion of the sliding member, thereby horizontally reciprocating movement.

Here, in the case where the solder cream is discharged downward through the opening / closing nozzle, air pressure is applied to one vertical part of both vertical parts of the sliding member, so that one end of the horizontal part of the sliding member is equal to the sliding part. The second outflow hole, the third outflow hole, and the fourth outflow hole may be in communication with each other by coinciding with one end.

Here, when the opening / closing nozzle blocks the discharge of the solder cream, pneumatic pressure is applied to the other vertical portion of both vertical portions of the sliding member, so that the other ends of the horizontal portions of the sliding member are at both ends of the sliding portion. By coinciding with the other end, the second outlet hole and the third outlet hole are prevented from communicating, and the first air inlet passage and the second air inlet passage are in communication with each other.

Here, the air pressure is applied through the first air inlet passage, and the air pressure is discharged downward through the opening / closing nozzle through the second air inlet passage and the air inlet discharge groove, thereby remaining in the fourth outlet hole. It is characterized by removing the solder cream.

In addition, the guide member is a base formed with a hole in the center, an extension part integrally formed in the base to extend the hole in the upper direction, is fitted to the outer peripheral surface of the extension, it is formed higher than the upper end of the extension Characterized in that it comprises an elastic portion.

In addition, a first sealing groove is formed in the lower surface of the horizontal portion along the periphery of the three outlet holes and the air inlet and outlet groove, and a first sealing ring is inserted into the first sealing groove, The second sealing groove and the second sealing ring is formed in a position corresponding to the first sealing groove and the first sealing ring in the vertical direction.

In addition, the upper coupling member and the lower coupling member is formed of a metal material, the upper coupling member is characterized in that the magnet is formed.

According to the solder cream supply device for screen printers of the present invention having the above-described problems and solving means, since the opening and closing nozzle is attached to a cartridge holder for supporting and seating a cartridge filled with solder cream, When the discharge nozzle is discharged downward through the opening / closing nozzle, the solder nozzle is not discharged downwardly through the opening / closing nozzle. It has the advantage of removing the cream cleanly.

In addition, it is possible to prevent the free fall of the cream solder from the cartridge in a state where the operation is stopped for a long time, there is an advantage that can prevent the waste of the cream solder, prevent equipment contamination and precisely control the supply amount of the solder cream.

1 is a schematic diagram of a conventional solder cream supply device for a conventional screen printer.
2 is a cross-sectional view of a solder cream supply device for a screen printer according to an embodiment of the present invention.
3 is an exploded perspective view of the opening and closing nozzle according to the embodiment of the present invention.
Figure 4 is a detailed view of the upper coupling member of the opening and closing nozzle applied to the present invention.
5 is a detailed view of the sliding member of the opening and closing nozzle applied to the present invention.
Figure 6 is a detailed view of the lower coupling member of the opening and closing nozzle applied to the present invention.
7 is a detailed view of the guide member of the opening and closing nozzle applied to the present invention.
8 is a state diagram of the coupling of the opening and closing nozzle of the supply state of the solder cream through the opening and closing nozzle according to the present invention.
9 is a state diagram of the combined opening and closing nozzle of the supply stop state of the solder cream through the opening and closing nozzle according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of a solder cream supply device for a screen printer of the present invention having the above problems, solving means and effects. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification.

2 is a cross-sectional view of a solder cream supply device for a screen printer according to an embodiment of the present invention.

As shown in FIG. 2, the solder cream supply device for a screen printer according to an exemplary embodiment of the present invention accommodates solder cream, has an open top portion, and has a solder cream discharge hole 3a formed at the center of the bottom surface thereof. It comprises a cartridge (3), a pressurized cylinder (4) installed on the upper surface of the cartridge (3) to apply pressure to the solder cream, and a cartridge holder (5) for seating and supporting the cartridge (3).

And the opening and closing nozzle 100 corresponding to the essential constituent means of the present invention is further included. The opening and closing nozzle 100 is mounted on a mounting hole 5b formed at the center of the cartridge holder 5 and discharges the solder cream extruded from the solder cream outlet 3a of the cartridge 3 downward Or the function of cutting off the discharge of the solder cream. In addition, when the discharge of the solder cream is cut off, the air introduced at a predetermined pressure is blown downward to cleanly remove the solder cream remaining in the discharge hole 5a of the opening / closing nozzle and the cartridge holder 5 Function.

First, the cartridge 3 is filled with agitated solder cream, and the cartridge 3 is filled with a predetermined amount of solder cream. Therefore, the supply amount and the remaining amount of the solder cream filled in the cartridge 30 can be checked precisely using various sensor means.

The opening and closing nozzle 100 mounted in the mounting hole 5b of the cartridge holder 5 may be formed to have a hexahedron shape or a cylindrical shape as a whole, and in the present invention, the opening and closing nozzle 100 having a hexahedron shape. The description will be based on).

3 is an exploded perspective view of the opening and closing nozzle 100 according to the embodiment of the present invention. As shown in FIG. 3, the opening / closing nozzle 100 according to the present invention has an upper coupling member 10 having a substantially thin rectangular parallelepiped shape, and sliding slidingly coupled to a horizontal reciprocating motion at a lower surface of the upper coupling member 10. The cartridge 30 is inserted into the lower coupling member 50 coupled to the lower surface of the upper coupling member 10 and the central portion of the upper coupling member 10 so that the sliding member 30 is accommodated. And a guide member 70 in pressure contact with the central lower surface of the cartridge 30 to be in pressure communication with the solder cream discharge port 3a of 3).

A detailed structure of the upper coupling member 10 will be described below with reference to FIGS. 3 and 4. 4 (a) and 4 (b) is a perspective view seen from the upper side of the upper coupling member 10, Figure 4 (c) is a perspective view seen from the lower side of the upper coupling member 10.

3 and 4, the upper coupling member 10 has a thin hexahedral shape as a whole. Of course, it may be configured to have a cylindrical shape.

The upper coupling member 10 is recessed in the center portion of the upper surface is formed with a depression (11). The depression 11 is composed of a bottom surface 11a and a side surface 11b. It is preferable that the shape of the depression 11 is a cylindrical shape as a whole.

The first outlet hole 12 is formed in the central portion of the bottom surface 11a of the recess 11 to the lower surface of the upper coupling member 10. As will be described later, the guide member 70 is inserted into the recessed part 11, and the guide member 70 is connected to the hole formed in the guide member 70 so that the first outlet hole 12 communicates with the guide member 70. It is inserted into the depression 11 and mounted.

On the other hand, the depression 11 may be formed by pitting or recessed the central portion of the upper coupling member 10 of the hexahedral shape, in order to form a deeper, as shown in Figure 4 (b) As described above, an extension part 11c may be further provided to extend the side surface 11b of the depression part 11 in an upward direction. As a result, even if the thickness of the upper coupling member 10 is thin, a sufficient depth for inserting and seating the guide member 70 may be formed.

The lower surface of the upper coupling member 10 having the structure of the upper surface as shown in Figure 3 and 4 (c), the upper surface (lower) on the lower surface of the upper coupling member 10 As viewed from the surface, the sliding portion 13 is formed by being recessed in the direction of the upper surface). The sliding part 13 is formed in one direction on the lower surface of the upper coupling member 10. That is, the sliding part 13 is formed by pitting (depressing) from the center of one side edge of the lower surface of the upper coupling member 10 to the center of the opposite edge.

The sliding portion 13 has a cross-sectional shape of the letter "C" as a whole, and is composed of an upper surface 13a and a side surface 13b. As shown in (c) of FIG. 4, a second outlet hole 14 communicating with the first outlet hole 12 is formed in a central portion of the upper surface 13a of the sliding part 13.

Since the second outlet hole 14 communicates with the first outlet hole 12 and is one connected outlet hole, the second outlet hole 14 and the first outlet hole 12 are the same outlet hole. Correspondingly, only the outflow hole viewed from the upper side of the upper coupling member 10 may be divided into the first outflow hole 12 and the outflow hole viewed from the lower side as the second outflow hole 14.

As described above, a sliding part 13 for guiding the sliding member 30 to be described later to be slid in a horizontal reciprocating motion in a horizontal direction is formed on a lower surface of the upper coupling member 10 in one direction.

Meanwhile, as illustrated in FIGS. 3 and 4, the upper coupling member 10 has a first air inflow passage 15 bored to one side of the side surfaces 13b of the sliding part 13 on one side. Is formed. As will be described later, the first air inlet passage 15 stops supplying the solder cream downward through the opening / closing nozzle 100 and then discharges the opening or closing nozzle 100 or the cartridge holder 5. It is used as a passage for supplying air to cleanly blow away the solder cream remaining or buried in (5a).

The slider member 30 is inserted into the lower surface of the upper coupling member 10 having the above structure, specifically, the sliding part 13. The slider member 30 is inserted into the sliding part 13 formed under the upper coupling member 10 to perform horizontal reciprocating motion.

FIG. 5A is a perspective view as seen from the upper side of the sliding member 30, and FIG. 5B is a perspective view as seen from the lower side of the sliding member 30. As shown in FIG.

As shown in FIGS. 3 and 5, the sliding member 30 has an overall "C" shape and extends vertically downward from both ends of the horizontal portion 31 and the horizontal portion 31, respectively. It consists of a vertical portion 33.

The horizontal part 31 of the sliding member 30 is inserted into the sliding part 13 to horizontally reciprocate. The thickness of the horizontal portion 31 is approximately equal to the height of the side surface 13b of the sliding portion 13. However, the length of the horizontal portion 31 has a length smaller than the length of the upper surface (13a) of the sliding portion (13).

Therefore, when one end of the horizontal portion 31 coincides with one end of the sliding portion 13 in the process of sliding the horizontal portion 31 in the horizontal reciprocating motion in the sliding portion 13, The other end of the horizontal portion 31 is located inside the sliding portion 13. The reason why the length of the horizontal portion 31 is formed smaller than the length of the sliding portion 13 will be described later.

At both ends of the horizontal portion 31, vertical portions 33 are integrally formed. That is, the vertical portion 33 is formed to extend vertically downward (downward in the state in which the sliding member 30 is inserted into the sliding portion 13) at both ends of the horizontal portion 31, respectively.

In the sliding member 30 configured as described above, as illustrated in FIGS. 3 and 5, a third outlet hole 31a is formed in the horizontal portion 31. The third outflow hole 31a is not formed at the center of the long axis (length direction) of the horizontal portion 31 but is formed in a state inclined to one side from the center.

Specifically, when the one end of the horizontal portion 31 coincides with one of the ends of the sliding portion 13, the third outlet hole 31a formed in the horizontal portion 31 is coupled to the upper portion. It is formed at a position in communication with the second outlet hole 14 (also corresponding to the first outlet hole) of the member 10.

On the other hand, in the horizontal portion 31 of the sliding member 30, the first air inflow passage formed in the upper coupling member 10 during the horizontal reciprocating motion of the sliding member 30 along the sliding portion 13 A second air inflow passage 31c which may be in communication with 15 is further provided, and an air inflow discharge groove adjacent to the third outlet hole 31a to communicate with the second air inflow passage 31c ( 31b) is further formed on the lower surface of the horizontal portion 31 (the surface opposite to the surface in contact with the sliding portion 13).

Specifically, as shown in FIGS. 3 and 5, the horizontal part 31 of the sliding member 30 has a second air inflow passage 31c which may communicate with the first air inflow passage 15 at a side surface thereof. ) And the horizontal to discharge the air flowing from the second air inlet passage 31c adjacent to the third outlet hole 31a to the fourth outlet hole 51 of the lower coupling member 50, which will be described later. It is further provided with an air inlet and discharge groove 31b formed in the lower surface of the part 31.

As described above, the air inlet-discharge groove 31b is formed on the lower surface of the horizontal portion 31 and is formed adjacent to the third outlet hole 31a. However, the air inlet and outlet groove 31b is not a hole (hole), like the third outlet hole 31a, but has a form of a recess formed therein so as to communicate with the second air inlet passage 31c. Is formed.

On the other hand, as shown in Figure 5, the lower surface of the horizontal portion 31 (the surface of the horizontal portion shown in (b) of Figure 5) the three outlet holes 31a and the air inlet discharge groove 31b The first sealing groove 36 is formed along the outer edge of the first sealing groove 36 is inserted into the first sealing groove 36, the upper surface of the horizontal portion 31 (Fig. 5 (a) The second sealing groove 36 (same reference numerals as the first sealing groove) is used at a position corresponding to the first sealing groove 36 and the first sealing ring 35 in the vertical direction. ) And a second sealing ring 35 (using the same reference numerals as the first sealing ring) are formed.

By inserting the first sealing ring 35 into the first sealing groove 36 and the second sealing ring 35 into the second sealing groove 36, the air inlet and outlet groove 31b and the third The outlet hole 31a may be blocked from the outside. Therefore, as will be described later, the solder cream sprayed downward through the third outlet hole 31a is prevented from escaping to the outside of the first sealing ring or the second sealing ring, and the air inlet discharge groove ( The air blown downward through 31b) can be prevented from escaping out of the first sealing ring.

The upper coupling is fixed to support the sliding member 30 to allow only horizontal reciprocating movement in a state in which the sliding member 30 having the above-described structure is inserted into the sliding portion 13 of the upper coupling member 10. The lower coupling member 50 is screwed to the lower portion of the member 10.

Specifically, the lower coupling member 50 is fixedly coupled to the upper coupling member 10, as shown in Figs. A locking portion 53 is formed on both sides facing each other so that the vertical portion 33 can be caught, and a fourth outlet hole 51 is formed at the same vertical line as the second outlet hole 14 in the center portion. .

The engaging portion 53 is formed by being formed in the form of the letter "c" on both sides of the lower coupling member 50, the sliding member 30 is sliding in the sliding portion 13 of the upper coupling member 10. In the process, the sliding member 30 is formed so that the vertical portion 33 of the sliding member 30 can be caught so as not to escape from the sliding portion 13.

Specifically, as shown in FIG. 6, the locking portion 53 has a “c” shape as a whole, and includes a contact portion 53b connecting the guide portions 53a on both sides and the guide portions on both sides. The guide part 53a guides both sides of the vertical part 33 while the sliding member 30 slides horizontally from the sliding part 13, and the locking part 53 is The vertical portion 33 is engaged to prevent the sliding member from escaping from the sliding portion.

The upper coupling member 10, the sliding member 30, and the lower coupling member 50 are coupled to each other, such that the first outlet hole 12 and the second outlet hole 14 formed in the upper coupling member 10 are the same. The solder cream extruded downward through the fourth outlet hole 51 formed in the lower coupling member 50 or blocked. This will be described later.

The depression 11 formed in the upper coupling member 10 communicates with the solder cream discharge port 3a of the cartridge 3 and discharges the solder cream ejected from the solder cream discharge port 3a to the first outlet hole. 12, guide member 70 for guiding to the second outflow hole 14 is also inserted).

That is, the guide member 70 is inserted into the depression 11 of the upper coupling member 10 to guide the solder cream to the first outlet hole 12, but the solder cream discharge port 3a of the cartridge. And pressure communication.

Specifically, as shown in FIG. 7, the guide member 70 includes a base 71 in which a hole 71a is formed at the center thereof, and the base 71 in order to extend the hole 71a in an upward direction. An extension portion 73 is formed integrally, it is fitted to the outer peripheral surface of the extension portion 73, it is configured to include an elastic portion 75 formed higher than the upper end of the extension portion (73).

The cartridge 3 is disposed such that the solder cream discharge port 3a and the hole 71a of the guide member 70 communicate with each other, and then are in close contact with each other in an upward direction. Then, the solder cream discharge port (3a) and the upper end side of the elastic portion 75 is in close contact with each other, so that the solder cream extruded from the solder cream discharge port (3a) does not leak to the outside (holes of the guide member 70) 71a), the solder cream may be guided to the first outlet hole (12).

Hereinafter, the operation of the solder cream supply device for a screen printer including the opening and closing nozzle having the above-described configuration will be described in detail.

As shown in FIG. 2, the solder cream supply device for a screen printer according to an exemplary embodiment of the present invention accommodates solder cream, has an open top portion, and has a solder cream discharge hole 3a formed at the center of the bottom surface thereof. It comprises a cartridge (3), a pressurized cylinder (4) installed on the upper surface of the cartridge (3) to apply pressure to the solder cream, and a cartridge holder (5) for seating and supporting the cartridge (3).

And the opening and closing nozzle 100 corresponding to the essential constituent means of the present invention is further included. The opening and closing nozzle 100 is mounted on a mounting hole 5b formed at the center of the cartridge holder 5 and discharges the solder cream extruded from the solder cream outlet 3a of the cartridge 3 downward Or the function of cutting off the discharge of the solder cream. In addition, when the discharge of the solder cream is cut off, the air introduced at a predetermined pressure is blown downward to cleanly remove the solder cream remaining in the discharge hole 5a of the opening / closing nozzle and the cartridge holder 5 Function.

In this configuration, the opening and closing nozzle 100 is disposed above the mask 2 disposed on the upper surface of the substrate 1 to be printed to discharge the solder cream downward or block the discharge of the solder cream.

Specifically, the upper coupling member 10, the sliding member 30, and the lower coupling member 50 are coupled to each other, so that the first outlet hole 12 and the second outlet hole 14 formed in the upper coupling member 10. ) May be supplied downward or blocked through the fourth outlet hole 51 formed in the lower coupling member 50 through the solder cream extruded downward through the same).

At this time, supply or interruption of the solder cream is determined according to the position of the slider member 30. Specifically, the first outlet hole 12 and the second outlet hole 14 formed in the upper coupling member 10 have the same meaning, and the fourth outlet hole 51 formed in the lower coupling member 50. ) Are at the same position on the vertical line, so that the third outlet hole 31a formed in the slider member 30 has the same meaning as that of the first outlet hole 12 and the second outlet hole 14). When moved so as to be positioned on the same line on the vertical line with the fourth outlet hole 51, the first outlet hole 12, the second outlet hole 14 formed in the upper coupling member 10 is also the same downward direction The extruded solder cream may be supplied downward through the fourth outlet hole 51 formed in the lower coupling member 50.

On the contrary, the third outlet hole 31a formed in the slider member 30 has the same meaning as that of the first outlet hole 12 and the second outlet hole 14 and the fourth outlet hole 51. If it is moved so as not to be located on the vertical line, the lower coupling member is a solder cream that is extruded downward through the first outlet hole 12, the second outlet hole 14 formed in the upper coupling member 10, the same meaning) Supplying downward through the fourth outlet hole 51 formed in the 50 may be blocked.

As a result, the operation of supplying or blocking the solder cream in the downward direction of the opening / closing nozzle is determined according to the horizontal movement of the sliding member 30.

As shown in FIG. 2, the sliding member 30 pressurizes the vertical portion 33 of the sliding member 30 by the pneumatic pressure provided from the air passage 5c formed inside the cartridge holder 5. As a result, the horizontal reciprocating motion can be performed.

First, the third outlet hole 31a formed in the slider member 30 is perpendicular to the first outlet hole 12 and the second outlet hole 14, and the fourth outlet hole 51. Solder cream that is extruded downwardly through the first outlet hole 12 and the second outlet hole 14 formed in the upper coupling member 10 so as to be positioned on the same line as the upper coupling member 10 may have the lower coupling member ( Pneumatic pressure is applied to only one vertical portion 33 of the slider member 30 as shown in FIG. 8 (a) in order to supply downward through the fourth outlet hole 51 formed in the 50. do.

Then, as shown in FIG. 8, one vertical portion 33 of the slider member 30 is caught by the contact portion 53b of the engaging portion of the lower coupling member 50, and the other vertical portion 33 is It is coincided with one end of the sliding portion 13 of the upper coupling member (10).

In this state, as illustrated in FIG. 8A, the first outlet hole 12 and the second outlet hole 14 of the upper coupling member 10 and the slider member 30 are formed. The three outflow holes 31a are positioned on the same vertical line and are in communication with each other. As shown in FIG. 8B, the third outlet hole 31a of the slider member 30 and the fourth outlet hole 51 of the lower coupling member 50 are positioned on the same vertical line. It is in a state of communication.

As a result, the first outlet hole 12 and the second outlet hole 14 formed in the upper coupling member 10 have the same meaning, the third outlet hole 31a of the slider member 30 and the lower coupling member 50. 4th outflow hole 51 of () is located on the same vertical line, and is in a state of communicating.

Therefore, the solder cream filled in the cartridge 3 in pressure contact with the guide member 70 is guided through the solder cream discharge port 3a of the cartridge 3 by pressurization of the pressure cylinder 4. The first solder hole 12 and the second outlet hole 14 formed in the upper coupling member 10 are also introduced into the member 70, and the introduced solder cream has the same effect as that of the slider member 30. 3 may be supplied to the mask 2 through the outlet hole 31a and the fourth outlet hole 51 of the lower coupling member 50.

Here, FIG. 8A shows the same meaning as the first outlet hole 12 and the second outlet hole 14 formed in the upper coupling member 10, and the third outlet hole 31a of the slider member 30. And a rear side of the upper coupling member 10 and the slider member 30 in a state in which the fourth outlet holes 51 of the lower coupling member 50 are all positioned on the same vertical line to communicate with each other. 8B is a rear perspective view of the slider member 30 and the lower coupling member 50 in a coupled state.

In summary, when the solder cream is discharged downward through the opening / closing nozzle 100, pneumatic pressure is applied to one vertical portion 33 of both vertical portions 33 of the sliding member 30. One end of the horizontal portion 31 of the sliding member 30 coincides with one end of both ends of the sliding part 13, thereby being the same as the second outlet hole 14 and the first outlet hole 12. ), The third outlet hole 31a and the fourth outlet hole 51 communicate with each other.

Meanwhile, in this state, as illustrated in FIG. 8A, the first air inflow passage 15 formed in the upper coupling member 10 and the first formed in the sliding member 30 are formed. Since the two air inflow passages 31c are in a state of being displaced from each other (not in communication with each other), even if a high pressure air is introduced through the first air inflow passage 15, the sliding member 30 Air does not flow into the air inlet-discharge groove 31b formed in the chamber. Of course, when solder cream is supplied downward through the opening / closing nozzle, no strong pressure air is introduced through the first air inflow passage 15.

In FIG. 8A, the diameter of the second outlet hole 14 (dashed circle) is shown to be larger than the diameter of the third outlet hole 31a (solid line circle), but in reality, has a diameter substantially the same. They are in communication with each other and overlap. In addition, since the first air inlet passage 15 and the second air inlet passage 31c are not actually visible, they are indicated by dotted lines.

In addition, although the diameter of the third outlet hole 31a (dashed circle) is shown to be larger than the diameter of the fourth outlet hole 51 (solid line circle) in FIG. 8B, the diameter of the third outlet hole 31a is substantially the same. They are in communication with each other. In addition, since the air inlet and outlet grooves 31b formed in the sliding member 30 are not actually visible, they are indicated by dotted lines.

Through the above-described operation, the solder cream may be supplied under the opening / closing nozzle and provided as a mask. This operation continues during the process of forming a predetermined pattern on the substrate 1 through the mask 2.

Thereafter, in order to block the supply of the solder cream under the opening / closing nozzle, that is, when the opening / closing nozzle 100 blocks the discharge of the solder cream, both vertical portions 33 of the sliding member 30 are prevented. ), Pneumatic pressure is applied to the other vertical portion 33 (by applying pneumatic pressure in a direction opposite to that shown in FIG. 9 (a) and FIG. 8 (a)). The other end of the horizontal portion 31 of the sliding portion 13 is coincident with the other end of the two ends of the sliding portion 13, so that the second outlet hole 14 (the same as the first outlet hole 12) and the third outlet hole. 31a is prevented from communicating, and the first air inflow passage and the second air inflow passage are in communication with each other.

9 (a) shows that the first outlet hole 12 and the second outlet hole 14 formed in the upper coupling member 10 have the same meaning, and the fourth outlet hole 51 of the lower coupling member 50 is formed. The upper coupling member 10 and the slider member 30 are coupled to each other in a state in which they are not positioned on the same vertical line as the third outlet hole 31a of the slider member 30. 9 is a rear perspective view of the rear side in the state in which the slider member 30 and the lower coupling member 50 are coupled to each other.

In this state, as illustrated in FIG. 9A, the first outlet hole 12 and the second outlet hole 14 of the upper coupling member 10 and the slider member 30 are formed. The three outflow holes 31a are not located on the same vertical line and thus are not in communication with each other. As shown in FIG. 9B, the third outlet hole 31a of the slider member 30 and the fourth outlet hole 51 of the lower coupling member 50 are positioned on the same vertical line. They do not communicate with each other.

As a result, the solder cream remaining or introduced into the guide member 70 is blocked by the horizontal portion 31 of the sliding member 30 and is further lowered through the fourth outlet hole 51 of the lower coupling member 50. Cannot be supplied with

That is, as shown in (a) of FIG. 9, the second outlet hole 14 (the same as the first outlet hole 12) formed in the upper coupling member 10 and the agent formed in the sliding member 30 are formed. The three outflow holes 31a are in a displaced state from each other. Therefore, the upper surface 13a of the sliding part 13 of the upper coupling member 10 is visible through the third outlet hole 31a. In addition, in FIG. 9A, the air inlet and outlet groove 31b formed on the rear surface of the second outlet hole 14 (the same as the first outlet hole 12) and the horizontal part 31 of the sliding member 30 is formed. ) Is located on the same vertical line, but the air inlet and outlet grooves 31b are not recessed holes but recessed grooves, so that the second outlet holes 14 and the first outlet holes 12 are the same. It is not in communication with the state. That is, the second outlet hole 14 (the same as the first outlet hole 12) is in contact with the upper surface of the horizontal portion 31 that is blocked.

On the other hand, as shown in (b) of Figure 9, the air inlet discharge groove 31b is in communication with the fourth outlet hole 51 formed in the lower coupling member 50. That is, when looking into the fourth outlet hole 51 in the state of FIG. 9B, the air inlet and outlet groove 31b is visible. In addition, in FIG. 9B, the third outlet hole 31a formed in the sliding member 30 is not blocked by the lower coupling member 50. Therefore, the third outlet hole 31a formed in the sliding member 30 is indicated by a dotted line.

The state described with reference to FIG. 9 eventually becomes a state where the solder cream no longer needs to be supplied below the opening and closing nozzle. That is, the process of supplying the solder cream to the lower side of the opening / closing nozzle is stopped. In this case, even if the horizontal portion 31 of the sliding member 30 blocks the second outlet hole 14 so that the solder cream does not flow downward, the solder cream that does not fall downward in the previous process is removed. 4 may remain or remain in the outflow hole 51, and may also be in a state where the opening and closing nozzle 100 is mounted on the lower side, that is, in the discharge hole 5a of the cartridge holder 5, or remains. have.

Therefore, there is a need to cleanly remove and remove the solder cream remaining or remaining in the fourth outlet hole 51 and the discharge hole 5a of the cartridge holder 5. This is because the remaining solder cream may fall to an undesirable time or position, which may lead to defects in the process of patterning the solder cream on the substrate and may act as a contaminant.

To this end, as described above, further provided with a first air inlet passage 15 which is bored from one side of the upper coupling member 10 to one side of the sliding portion 13, the sliding member 30 The horizontal portion 31 of the second air inlet passage 31c communicated with the first air inlet passage 15 on the side, and the second air inlet passage adjacent to the third outlet hole 31a. An air inlet discharge groove 31b is formed in the lower surface of the horizontal portion 31 to discharge the air introduced from the 31c to the fourth outlet hole 51 of the lower coupling member 50.

In such a configuration, in order to blow off the remaining solder cream, air pressure is applied through the first air inflow passage 15 in the state as shown in FIG. 9A, and the air pressure is the second air. Through the inflow passage (31c) and the air inlet discharge groove (31b) to be discharged to the downward direction of the opening and closing nozzle. Therefore, the solder cream remaining in the fourth outflow hole 51 is removed.

The air pressure applied through the first air inflow passage 15 is provided through a pneumatic inflow passage (not shown) formed inside the cartridge holder 5. That is, the pneumatic inflow passage (not shown) and the first air inflow passage 15 communicate with each other, and an external pneumatic application means (not shown) and an opening / closing portion (not shown) are appropriately controlled so that the first air inflow passage ( It is possible to supply air having a predetermined pressure to 15).

On the other hand, a screw formed in the upper coupling member 10 and the lower coupling member 50 in a state where the sliding member 30 is inserted between the upper coupling member 10 and the lower coupling member 50 described above. By inserting and fastening the coupling screw 81 into the hole 80, the upper coupling member 10 and the lower coupling member 50 is coupled (see Fig. 3).

In addition, the upper coupling member 10 and the lower coupling member 50 may be coupled through a magnet in addition to the method of coupling through screw coupling as described above. That is, the upper coupling member and the lower coupling member may be formed of a metal material, and the upper coupling member may be inserted into a magnet, thereby coupling the upper coupling member and the lower coupling member.

Specifically, when the magnet is inserted into a portion where the screw hole 80 is formed in the upper coupling member 10 and the lower coupling member is formed of a metal material, the sliding member 30 is interposed. The upper coupling member and the lower coupling member can be fastened.

As described above, according to the solder cream supply device for a screen printer of the present invention, by appropriately adjusting the opening and closing nozzles, the solder cream can be precisely supplied to the mask disposed on the substrate, and the solder cream supply operation is stopped. In this state, since the solder cream remaining in the opening and closing nozzle can be cleaned and removed, there is an advantage in that it is possible to optimally prevent the occurrence of process problems and the generation of contaminants.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

1: substrate 2: mask
3: Cartridge 3a: Solder cream outlet
4: pressure cylinder 5: cartridge holder
5a: Discharge groove of the cartridge holder 5b: Cartridge mounting hole
5c: Air passage of the cartridge holder 10: Upper coupling member
11 depression 11a: bottom surface of the depression
11b: depression side 11c: depression extension
12: first outflow hole 13: the sliding portion
13a: Sliding part upper surface 13b: Sliding part side
14 second outlet hole 15 first air inlet passage
30: Sliding member 31: Horizontal part
31a: third outlet hole 31b: air inlet and outlet groove
31c: second air inlet passage 33: vertical part
35: first and second sealing ring 36: first and second sealing groove
50: lower coupling member 51: fourth outlet hole
53: locking portion 53a: guide portion of the locking portion
53b: contact portion of the engaging portion 70: guide member
71: base of the guide member 71a: hole of the guide member
73: extension portion of the guide member 75: elastic portion of the guide member
80: screw hole 81: coupling screw
100: opening and closing nozzle

Claims (9)

A cartridge containing solder cream, having an open upper portion, and having a solder cream outlet formed in the center of the lower surface thereof, a pressurized cylinder installed on the upper surface of the cartridge to pressurize the solder cream, and In the solder cream supply device for a screen printer comprising a cartridge holder,
The mounting hole formed in the center portion of the cartridge holder is equipped with an opening and closing nozzle for discharging the solder cream extruded from the solder cream discharge port of the cartridge downward or blocking the discharge of the solder cream,
The opening and closing nozzle,
The upper center portion is recessed to form a recess, and a first outlet hole is formed at the center portion of the recess bottom surface, and the upper surface is recessed upward, and a sliding portion is formed in one direction, and the upper surface center of the sliding portion is formed. The upper portion of the coupling member is formed with a second outlet hole in communication with the first outlet hole;
The horizontal portion is inserted into the sliding portion and has a horizontal reciprocating motion, the horizontal portion is inserted into the sliding portion having a length less than the length of the sliding portion, it consists of a vertical portion extending vertically downward at both ends of the horizontal portion, A sliding member having a third outlet hole communicating with the second outlet hole when one end of the horizontal portion is coincident with one end of both ends of the sliding part;
The upper coupling member is fixedly coupled to each other, and the opposite sides are respectively picked out so that the engaging portions for engaging the vertical portion of the sliding member are formed on both opposite sides, and in the center portion, the same vertical line as the second outlet hole. A lower coupling member having a fourth outlet hole formed therein;
Is inserted into the depression of the upper coupling member guides the solder cream to the first outlet hole, the solder cream supply device for a screen printer, characterized in that it comprises a guide member in pressure communication with the solder cream discharge port of the cartridge .
The method according to claim 1,
The upper coupling member further includes a first air inflow passage that is opened from one side to one side of the sliding part,
The horizontal portion of the sliding member has a second air inlet passage that can communicate with the first air inlet passage on the side and the air flowing in from the second air inlet adjacent to the third outlet hole of the lower coupling member And an air inlet and outlet groove formed in the lower surface of the horizontal portion to discharge to the fourth outlet hole.
The method according to claim 1 or 2,
The sliding member is a solder cream supply device for a screen printer, characterized in that the pneumatic pressure provided from the air passage formed inside the cartridge holder presses the vertical portion of the sliding member, the horizontal reciprocating motion.
The method according to claim 3,
In the case where the solder cream is discharged downward through the opening / closing nozzle, air pressure is applied to one vertical part of both vertical parts of the sliding member so that one end of the horizontal part of the sliding member is in both ends of the sliding part. And the second outflow hole, the third outflow hole, and the fourth outflow hole communicate with each other by coinciding with one end thereof.
The method of claim 4,
When the opening / closing nozzle blocks the discharge of the solder cream, pneumatic pressure is applied to the other vertical portion of both vertical portions of the sliding member, so that the other ends of the horizontal portions of the sliding member are different from both ends of the sliding portion. By matching the end, the second outlet hole and the third outlet hole is prevented from communicating, the first air inlet passage and the second air inlet passage is characterized in that the solder cream supply device for the screen printer .
The method according to claim 5,
Solder cream remaining in the fourth outlet hole by applying air pressure through the first air inlet passage, and allowing the air pressure to be discharged downward through the opening / closing nozzle through the second air inlet passage and the air inlet ejection groove. Solder cream supply device for a screen printer, characterized in that for removing.
The method according to claim 1 or 2,
The guide member may include a base having a hole formed in the center thereof, an extension part integrally formed in the base to extend the hole in an upper direction, and an elastic part inserted into an outer circumferential surface of the extension part and formed higher than an upper end of the extension part. Solder cream supply device for a screen printer comprising a.
The method according to claim 2,
A first sealing groove is formed in the lower surface of the horizontal portion along the outer side of the third outlet hole and the air inlet and discharge groove, and a first sealing ring is inserted into the first sealing groove, and the first sealing ring is also formed on the upper surface of the horizontal portion. 1. A solder cream supply device for a screen printer, wherein the second sealing groove and the second sealing ring are formed at positions corresponding to the sealing groove and the first sealing ring in a vertical direction.
The method according to claim 1,
The upper coupling member and the lower coupling member is formed of a metal material, the upper coupling member is a solder cream supply device for a screen printer, characterized in that the magnet is inserted.

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