KR20180092220A - Screen printer for printed circuit board - Google Patents

Abstract

Disclosed is a screen printer for a printed circuit board. The screen printer for a printed circuit board comprises: a main body; a supply unit arranged inside the main body and having a plurality of seating parts in which a plurality of cream solders are received; a solder discharge unit arranged inside the main body, receiving one among the cream solders from the supply unit, putting the cream solder in a mounting part, and discharging a solder to a printed circuit board using the cream solder received in the mounting part; a discharge unit arranged inside the main body for discharging the cream solder discharged from the mounting part of the solder discharge unit to the outside; and a moving rail disposed to make the solder discharge unit between the supply unit and the discharge unit. The supply unit is connected with an inlet formed at one side of the main body, and if there is no cream solder received in the mounting part of the solder discharge unit, aligns one seating part, which has the cream solder, among the seating parts on the mounting part of the solder discharge unit and supplies the cream solder received in the seating part to the mounting part of the solder discharge unit.

Description

[0001] The present invention relates to a screen printer for a printed circuit board,

The embodiments disclosed herein relate to screen printers for printed circuit boards.

Transistors, diodes, resistors, IC chips, and various electronic components can be mounted on a printed circuit board (PCB) through surface mounting technology (SMT). For example, the connection pattern of the printed circuit board and the terminals of the electronic component can be electrically connected through soldering.

On the other hand, a screen printer may be used for soldering the printed circuit board. In the screen printer, a solder paste, a cream solder, or the like is applied to the peeling solder surface of the pattern circuit, that is, the connection pattern of the terminals of the electronic component mounted on the printed circuit board and the printed circuit board, .

Such a screen printer may include a pair of conveyor rails for supporting and moving both sides of the printed circuit board, and a squeegee blade for applying solder paste on the surface of the printed circuit board.

Conventional screen printers have to stop the equipment in order to supply cream solder, which may result in a reduction in facility operation efficiency.

The embodiments disclosed in this document can provide a screen printer capable of supplying cream solder without stopping the equipment.

A screen printer for a printed circuit board according to an embodiment disclosed herein includes a main body, a supply part including a plurality of mounting parts disposed inside the main body and each containing a plurality of cream solders, A solder dispensing unit arranged to receive the cream solder of the cream solders from the supply unit and to receive the cream solder from the supply unit and to discharge the solder to the printed circuit board using the cream solder accommodated in the mounting unit; A solder discharge unit for discharging the cream solder discharged from the mounting portion of the solder discharge unit to the outside and a moving rail provided in a rail form so that the solder discharge unit can move between the supply portion and the discharge portion, The supply part is connected to a charging port formed on one surface of the main body, In the case where there is no used cream solder, one of the seating portions, in which the cream solder is accommodated, may be aligned with the mounting portion of the solder discharging unit, and the cream solder contained in the mounting portion may be supplied to the mounting portion of the solder discharging unit .

According to the embodiments disclosed in this document, it is possible to prevent degradation in facility operation efficiency by supplying cream solder without stopping the equipment.

In addition, various effects can be provided that are directly or indirectly understood through this document.

1 is a perspective view of a screen printer according to an embodiment.
2A is a view for explaining a method of noticing the lack of cream solder according to an embodiment.
FIG. 2B is a view illustrating a state in which the mouth of a cream solder is in an open state when the cream solder is deficient according to an embodiment.
3A is a view illustrating a state in which cream solder according to one embodiment is put into a supply portion.
FIG. 3B is a view for explaining a method in which the cream solder put in the supply part according to one embodiment is aligned with the mounting part of the solder discharging unit.
3C is a view for explaining a method in which the cream solder according to one embodiment is supplied to the mounting portion of the solder discharging unit.
4A is a view for explaining solder discharge and movement of a solder discharge unit according to an embodiment.
4B is a view illustrating a state in which the solder discharge unit according to the embodiment is moved to the discharge portion.
4C is a view for explaining a method of moving the syringe cap of the solder discharge unit to discharge the cream solder according to one embodiment.
4D is a view for explaining a method of moving the emitting member of the solder discharging unit to discharge the cream solder according to one embodiment.
4E is a view showing a state in which the solder discharging unit is moved to the supplying unit to remount the cream solder according to one embodiment.

Hereinafter, various embodiments of the present document will be described with reference to the accompanying drawings. It is to be understood that the embodiments and terminologies used herein are not intended to limit the invention to the particular embodiments described, but to include various modifications, equivalents, and / or alternatives of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar components. The singular expressions may include plural expressions unless the context clearly dictates otherwise. In this document, the expressions "A or B" or "at least one of A and / or B" and the like may include all possible combinations of the items listed together. Expressions such as "first," " second, "" first, " or "second, " But are not limited to these components. When it is mentioned that some (e.g., first) component is "(functionally or communicatively) connected" or "connected" to another (second) component, May be connected directly to the component, or may be connected through another component (e.g., a third component).

In this document, "configured to (or configured) to" as used herein is intended to encompass all types of information, including, for example, hardware or software Quot ;, " made to be ", "made to do ", or" designed to "interchangeably. In some situations, the expression "a device configured to" may mean that the device can "do " with other devices or components. For example, a processor configured (or configured) to perform the phrases "A, B, and C" may be implemented by executing one or more software programs stored in a memory device or a dedicated processor (e.g., an embedded processor) , And a general purpose processor (e.g., a CPU or an application processor) capable of performing the corresponding operations.

Hereinafter, a screen printer according to various embodiments will be described with reference to the accompanying drawings. In this document, the term user may refer to a person or device that uses a device (e.g., an artificial intelligence electronic device) using a device (e.g., a screen printer).

1 is a perspective view of a screen printer according to an embodiment.

Referring to FIG. 1, the screen printer 100 may include a main body 110 (or a housing) and a notification unit 130 disposed on at least one side of the main body 110. The main body 110 may provide a space in which the components of the screen printer 100 can be seated. In one example, body 110 includes a front, a rear, and side surfaces that enclose a space between the front and back surfaces, wherein the components can be seated between the front and back surfaces of the body 110 Space can be provided. In the drawing, the main body 110 is provided in a substantially rectangular parallelepiped shape, but the present invention is not limited thereto. The shape of the main body 110 may be any shape as long as the shape of the main body 110 is such that the components can be seated therein.

The main body 110 includes a supply portion 111 for supplying cream solder 500 (e.g., can type cream solder or syringe type cream solder), a supply portion 111 for supplying cream from the supply portion 111, A solder dispensing unit 115 for supplying solder to the printed circuit board 600 and a solder dispensing unit 115 for supplying solder to the printed circuit board 600 in a rail form so as to move between the supply unit 111 and the discharge unit 119 And a discharge unit 119 for discharging the cream solder 500 discharged from the solder discharge unit 115 to the outside.

The supply unit 111 may be connected to a charging port 120 (or an opening) formed on one surface of the main body 110 so that at least one cream solder 500 may be inserted. According to one embodiment, the loading port 120 can be opened and closed by the lid 113. [ For example, the lid 113 is connected to one side of the main body 110 through a rotation shaft so as to be adjacent to the charging port 120, and is rotatable around the rotation axis. The lid 113 is rotated through the charging port 120, Can be opened and closed. The shape of the inlet 120 may be similar to the shape of the cream solder 500 so that the cream solder 500 may be inserted and the size of the inlet 120 may be relatively larger than the size of the cream solder 500 . The lid 113 may be provided in the same or similar size and shape as the size and shape of the charging port 120 so as to cover the charging port 120.

The solder discharge unit 115 can receive the cream solder 500 from the supply unit 111 and can move between the supply unit 111 and the discharge unit 119 along the movement rail 117. [ When the solder dispensing unit 115 receives the cream solder 500, the solder dispensing unit 115 can discharge the solder to the printed circuit board 600 while moving on the printed circuit board 600.

The movable rail 117 is disposed between the supply part 111 and the discharge part 119 and may be provided in a rail shape so that the solder discharge unit 115 can move. For example, the moving rail 117 is moved from one side (for example, left side) of the screen printer 110 provided with the supply unit 111 to the other side (for example, right side) of the screen printer 110 provided with the discharge unit 119 And may be provided in the form of a long rail in the direction (e.g., the left-right direction). According to one embodiment, the moving rail 117 is provided on one side (e.g., the opposite side of the inlet 120) of the supply portion 111 and on one side (e.g., the opening on the discharge portion 119) As shown in FIG. For example, when the loading port 120 is viewed from the front, one side of the moving rail 117 is positioned behind the feeding section 111, and when the discharging section 119 is viewed from above (for example, The other side of the movable rail 117 may be positioned in front of the discharge portion 119. [0064]

The discharge portion 119 may include a structure for discharging the cream solder 500 discharged from the solder discharge unit 115 to the outside. According to one embodiment, the discharging portion 119 may be provided in the form of a container having an opening on a part thereof so as to contain the cream solder 500. For example, the cream solder 500 discharged from the solder discharging unit 115 may drop freely and be accommodated in the discharging portion 119 through the opening surface of the discharging portion 119.

The notification unit 130 may be disposed on at least one side of the main body 110. According to one embodiment, the notification unit 130 may be provided in a shape protruding from one surface of the main body 110. For example, the notification unit 130 may be provided in a shape of a long bar protruding from one surface of the main body 110. The notification unit 130 can inform the member of the cream solder 500 (or lack thereof). For example, when the cream solder 500 is not present in the supply unit 111, the notification unit 130 can inform the user that the cream solder 500 can be recognized. According to one embodiment, the notification unit 130 may include at least one LED, and when the cream solder 500 is not present in the supply unit 111, the LED may emit light. Alternatively, the notification unit 130 may cause the LED to emit light when the cream solder 500 is present in a number less than or equal to the number specified in the supply unit 111. In some embodiments, the notification unit 130 may include a display device to display the number of cream solders 500 remaining on the member or supply 111 of the cream solder 500 through the display device. have. As another example, the notification unit 130 may include a sound output device, and the number of the cream solder 500 remaining on the member or the supply unit 111 of the cream solder 500 may be spoken Can be informed.

FIG. 2A is a view for explaining a method of indicating a shortage of cream solder according to an embodiment, and FIG. 2B is a view illustrating a state in which a mouth of a cream solder in an insufficient state according to an embodiment is opened.

2A and 2B, a screen printer 200 (e.g., a screen printer 100) is connected to a cream solder (e.g., cream solder 500) through a notification unit 210 (e.g., (Or lack thereof) of the user. The notification unit 210 can notify the user that the cream solder is not present in the supply unit 270 (for example, the supply unit 111) or exists below the specified number. The notification unit 210 displays at least one LED that emits light when the cream solder is insufficient (or absent), the lack (or absence) of the cream solder, or the number of cream solders remaining in the supply unit 270 A display device, or a voice output device for notifying the lack (or absence) of the cream solder through the voice or the number of cream solders remaining in the supply part 270, and the like.

According to one embodiment, a lid 230 (e.g., lid 113) is disposed on one side of the screen printer 200 so that an inlet 250 (e.g., an inlet 120) connected to a supply unit 270 is opened and closed And the lid 230 can automatically rotate to open the inlet 250 when the cream solder is short (or absent). When the input port 250 is opened, the seating portion (e.g., the first seating portion 271 or the second seating portion 273) of the feeding portion 270 provided for the cream solder can be exposed to the outside. Accordingly, the user can insert the cream solder into the seating portion through the input port 250. According to one embodiment, when the cream solder is seated on all the seating parts formed on the supply part 270, the lid 230 can automatically rotate so that the charging port 250 is closed. As another example, the lid 230 may be rotated by external pressure. For example, the user may open or close the lid 230. [

3A is a view illustrating a state in which cream solder according to one embodiment is put into a supply portion.

3A, a screen printer 300 (e.g., a screen printer 100, 200) is connected to a supply portion 350 (e.g., a supply portion 111, 270) with a cream solder 710 The cover 310 (e.g., the covers 113 and 230) is automatically rotated to open the input ports 330 (e.g., the input ports 120 and 250) . When the input port 330 is opened, the seating portion (for example, the first seating portion 351 or the second seating portion 353) of the feeding portion 350 provided for the cream solder 710 is exposed to the outside . Accordingly, the user can insert the cream solder 710 into the seating portion through the input port 330. 3A shows a state in which the first cream solder 710 is fitted and seated in the first seating part 351. In FIG.

FIG. 3B is a view for explaining a method in which the cream solder put in the supply part according to one embodiment is aligned with the mounting part of the solder discharging unit.

3B, the supply unit 350 includes a plurality of cream solders (e.g., a first cream solder 710, a second cream solder 730, a third cream solder 750, a fourth cream solder 770, , Or fifth cream solder (790), respectively) may be received. 3B, the supply unit 350 may include a first seat 351, a second seat 353, a third seat 355, a fourth seat 357, And may include a seat portion 359. However, the number of the seating portions formed in the supply unit 350 is not limited thereto. It can be said that the structure conforming to the spirit of the present invention can be said to be a structure in which at least two seating portions are provided.

According to one embodiment, the supply part 350 is provided in the shape of a plate, and a part of the area (hereinafter referred to as a rotation part) can be rotated in the lateral direction 301. For example, the supply unit 350 may be provided in the form of a rotary table. When the rotation part of the supply part 350 is rotated in the lateral direction 301, the seating parts formed on one surface of the supply part 450 can be rotated in the lateral direction 301 about the rotation axis of the rotation part. One of the seating portions is aligned with the mounting portion 371 of the solder discharging unit 370 when the solder discharging unit 370 (e.g., the solder discharging unit 115) is positioned to receive the cream solder .

According to one embodiment, the rotating part of the supplying part 350 may rotate until the seating part in which the cream solder is received (or seated) among the seating parts is aligned with the mounting part 371 of the solder discharging unit 370. 3A, when the first cream solder 710 is placed on the first seating portion 351 exposed to the outside through the inlet 330, the rotating portion is moved in the lateral direction 301 by an angle It can rotate. In this case, as shown in FIG. 3B, the first seating part 351 can be rotated by an angle designated by the lateral direction 301 about the rotation axis of the rotation part. At this time, when the cream solder is seated on the second seating portion 353 at the position aligned with the mounting portion 371 of the solder discharging unit 370, the rotating portion can stop the rotation. For example, when the second cream solder 730 is seated on the second seat portion 353, the rotation portion can stop the rotation. When the cream solder is not seated on the second seat portion 353, the rotating portion can be further rotated by the angle specified by the lateral direction 301. [ As described above, if the rotation of the rotation unit is repeated and consequently the cream solder is seated, any rotation of the rotation unit can be stopped if any one of the seating units is aligned with the mounting unit 371 of the solder discharge unit 370.

According to one embodiment, the angle at which the rotation unit rotates once may be set differently according to the number of the seating portions. For example, when the rotating unit rotates once, one of the mounting units rotates to a position where it is aligned with the mounting portion 371 of the solder discharging unit 370, so that the angle at which the rotating unit rotates once is 360 degrees To the number of the seating portions. For example, as shown in the figure, when the number of the seating portions is five, the angle at which the rotation portion rotates once may be set to 72 degrees (360 degrees / five). However, the rotating operation of the rotating part is not limited thereto. According to various embodiments, the rotating portion may smoothly and continuously rotate to a position where the seating portion on which the cream solder is seated is aligned with the mounting portion 371 of the solder discharging unit 370.

According to one embodiment, the supply unit 350 may include a module (e.g., a processor) for determining whether the cream solder is in the seating portions. For example, a first sensor (e.g., a contact sensor or a proximity sensor) is disposed on one surface (e.g., a bottom surface) of each of the seating portions, and when the cream solder is received in the seating portions, 1 Sensing information sensed by the sensor can be analyzed to determine whether the cream solder is acceptable. The supplying unit 350 may also determine whether the seating portions are in alignment with the mounting portion 371 of the solder discharging unit 370. For example, a second sensor (e.g., a proximity sensor) is disposed on at least one surface (e.g., a side surface) of each of the seating portions, and the second sensor is attached to the mounting portion 371 of the solder discharging unit 370 under specified conditions The supply unit 350 may analyze the sensing information sensed by the second sensor to determine whether the seating units are aligned.

3C is a view for explaining a method in which the cream solder according to one embodiment is supplied to the mounting portion of the solder discharging unit.

3C, there is no cream solder accommodated in the mounting portion 371 of the solder discharging unit 370 and a seating portion of the seating portions formed in the supplying portion 350 in which the cream solder is accommodated is mounted on the mounting portion 371 of the solder discharging unit 370. [ The supplying unit 350 can supply the cream solder accommodated in the mounting unit to the mounting unit 371 of the solder discharging unit 370. [ According to one embodiment, the supply unit 350 is configured to mount the cream solder accommodated in the seating portion in a position aligned with the mounting portion 371 of the solder discharging unit 370 by pushing the cream solder into the mounting portion 371 of the solder discharging unit 370 Member 390 as shown in FIG.

According to one embodiment, the mounting member 390 may be configured to receive solder from the seating portion in alignment with the mounting portion 371 of the solder discharging unit 370 when the solder discharging unit 370 is positioned to receive the cream solder. And a moving bar 391 moving in the direction 303 of the mounting portion 371 of the discharging unit 370. When the movable bar 391 is moved by one distance from the one side of the mounting member 390 to one side 303 of the mounting member 390 and the one side of the cream solder accommodated in the seating portion is pressed, And can be pushed into the mounting portion 371 of the solder discharging unit 370. The movable bar 391 is mounted on the mounting portion 371 of the solder discharging unit 370 in the direction of the mounting member 390 (or in the direction of the mounting member 390) after the cream solder is mounted on the mounting portion 371 (The direction opposite to the one direction 303). 3C shows a state in which the first cream solder 710 housed in the first seating portion 351 is supplied (or mounted) to the mounting portion 371 of the solder discharging unit 370.

According to one embodiment, when cream solder is supplied to the mounting portion 371 of the solder discharging unit 370, a syringe cap 373 for fixing the supplied cream solder to the mounting portion 371 is formed in the lower end direction 305 The cream solder can be pressed and moved. In some embodiments, after the syringe cap 373 moves in the lower direction 305 to press the cream solder, the moving bar 391 may move in the direction of the mounting member 390.

FIG. 4A is a view for explaining solder discharge and movement of the solder discharge unit according to one embodiment, and FIG. 4B is a view illustrating a state in which the solder discharge unit according to one embodiment is moved to the discharge portion.

4A and 4B, the screen printer 400 (for example, the screen printers 100, 200, and 300) includes a solder discharge unit 430 (e.g., solder discharge units 115 and 370) When the cream solder 800 (for example, the cream solder 500 or 710) is supplied from the supply unit (e.g., the supply unit 111, 270 or 350), the printed circuit board 900 (e.g., the printed circuit board 600) The solder discharge unit 430 can be moved onto the printed circuit board 900 to perform the soldering operation. According to one embodiment, the solder dispensing unit 430 is positioned between the supply portion 410 and the discharge portion 470 (e.g., the discharge portion 119) along the movable rail 450 (e.g., the movable rail 117) Sliding can be moved. That is, the solder discharge unit 430 may move along the moving rail 450 in the direction 401 of the discharge part 470, and may be positioned on the printed circuit board 900. Thereafter, the solder discharge unit 430 can discharge (or apply) solder to the connection pattern of the terminals of the electronic parts mounted on the printed circuit board 900 and the printed circuit board 900, that is, the release solder surface of the pattern circuit have.

According to one embodiment, when the remaining amount of the cream solder 800 accommodated in (or mounted on) the mounting portion 431 (e.g., the mounting portion 371) of the solder discharging unit 430 is equal to or less than the specified size, the solder discharging unit 430 May move to the discharge portion 470 to release the cream solder 800 contained in the mounting portion 431. [

The discharge portion 470 may include a structure for discharging the cream solder 800 discharged from the solder discharge unit 430 to the outside. According to one embodiment, the discharge portion 470 may be provided in the form of a container having openings on a part thereof so as to contain the cream solder 800. For example, the cream solder 800 discharged from the solder discharge unit 430 may fall freely and be contained in the discharge portion 470 through the opening surface of the discharge portion 470.

4C is a view for explaining a method of moving the syringe cap of the solder discharging unit to discharge the cream solder according to one embodiment. Fig. 8 is a view for explaining a method of moving the emitting member.

4C and 4D, the solder dispensing unit 430 moves to the discharge portion 470 when the remaining amount of the cream solder 800 accommodated in the mounting portion 431 is equal to or less than the designated size, (800). The solder discharge unit 430 pushes the cream solder 800 accommodated in the mounting portion 431 in a specified direction 407 and discharges the cream solder 800 to fall into the discharge portion 470 .

According to one embodiment, the solder dispensing unit 430 includes a syringe cap 433 (e.g., syringe cap 373) for fixing the cream solder 800 to release the cream solder 800 in the upper direction 403 so that the cream solder 800 can be unfixed.

The solder discharge unit 430 may include a discharge member 435 for pushing and discharging the cream solder 800 accommodated in the mounting portion 431 in a specified direction 407. [ According to one embodiment, the emissive element 435 may be formed with an inclined surface on one side and may move a distance specified from one side of the mounting portion 431 to the other lateral direction 405. When the emitting member 435 moves from one side of the mounting portion 431 to the other lateral direction 405 and the inclined surface of the emitting member 435 presses one surface of the cream solder 800 housed in the mounting portion 431, The cream solder 800 is moved in the designated direction 407 and eventually can be discharged from the solder discharge unit 430. [ However, the shape, the arrangement position, and the moving direction of the emitting member 435 are not limited thereto. According to various embodiments, the emissive element 435 may not be formed with an inclined surface on one side. In this case, instead of moving the emitting member 435 in the direction 405 perpendicular to the emitting direction 407 of the cream solder 800, as shown in Fig. 4d, That is, in the same direction as the emitting direction 407 of the cream solder 800. When the cream solder 800 is discharged from the solder discharge unit 430 (after being moved by the distance specified by the other lateral direction 405), the discharge member 435 is moved in the direction of one side of the mounting portion 431 (Or in the opposite direction to the other lateral direction 405).

4E is a view showing a state in which the solder discharging unit is moved to the supplying unit to remount the cream solder according to one embodiment.

4E, when the cream solder 800 is discharged, the solder discharging unit 430 is moved along the moving rail 450 in the direction 409 of the supplying part 410 in order to receive another cream solder from the supplying part 410 Can be moved.

3B and 3C, the other cream solder accommodated in the mounting portion of the supply portion 410 is inserted into the mounting portion (not shown) of the solder discharging unit 430 431 and the syringe cap 433 is moved in the lower end direction (e.g., the lower end direction 305) so that the cream solder that has entered the mounting portion 431 can be pressed and fixed.

If there is no cream solder remaining in the supply portion 410, the cream solder is notified of the member as shown in FIGS. 2A and 2B, and the cover covering the inlet (for example, the inlet 120, 250, 330) (E.g., lid 113, 230, 310). 3A to 3C, when the user inserts the cream solder into the supply part 410, the supply part 410 rotates the rotating part, and the mounting part in which the cream solder is accommodated is inserted into the mounting part of the solder discharging unit 430 The cream solder accommodated in the mounting portion is pushed into the mounting portion 431 of the solder discharging unit 430 using the mounting member 390 and the syringe cap 433 is mounted on the bottom The cream solder that has entered the mounting portion 431 can be pressed and fixed.

As described above, according to various embodiments, screen printers (e.g., screen printers 100, 200, 300, and 400) for a printed circuit board may include a body (e.g., body 110) A plurality of seating portions (e.g., seating portions 271, 273, 351, 353, 355, and 352), in which a plurality of cream solders (e.g., cream solder 500, 710, 730, 750, 770, 790, (E.g., feeds 111, 270, 350, and 410) that include one or more cream solders (e.g., 357, 359) (E.g., solder dispensing units (e.g., solder dispensing units) (not shown) for receiving solder on a printed circuit board (e.g., printed circuit boards 600 and 900) using cream solder accommodated in the mounting portions 115, 370, and 430), and discharges the cream solder, which is disposed inside the main body and discharged from the mounting portion of the solder dispensing unit, to the outside A movable rail (for example, movable rails 117 and 450) provided in the form of a rail so that the solder discharge unit can move between the supply portion and the discharge portion, And the supply portion is connected to a charging port (for example, a charging port 120, 250, 330) formed on one surface of the main body, and when there is no cream solder accommodated in the mounting portion of the solder discharging unit, And the cream solder accommodated in the seating portion may be supplied to the mounting portion of the solder discharging unit.

According to various embodiments, the supply part is provided in the shape of a plate and a part of the area is rotated in the lateral direction, and when the solder discharge unit is positioned to receive the cream solder, And can be set to rotate until the seating portion in which the cream solder is housed is aligned with the mounting portion of the solder discharge unit.

According to various embodiments, when the cream solder contained in the mounting portion of the solder dispensing unit is not present and the mounting portion of the mounting portions containing the cream solder is aligned with the mounting portion of the solder dispensing unit, the cream solder accommodated in the mounting portion (For example, a mounting member 390) for pushing the cream solder accommodated in the seating portion to the mounting portion of the solder discharging unit and pushing the cream solder into the mounting portion of the solder discharging unit.

According to various embodiments, the solder dispensing unit may include a discharge member (for example, a discharge member 435) for pushing the received cream solder in a specified direction to discharge the cream solder in a specified direction when the remaining amount of the cream solder contained in the mounting portion of the solder dispensing unit is less than a specified size, ).

According to various embodiments, the screen printer may include a lid (e.g., a lid 113, 230 (hereinafter, referred to as " lid ") that is coupled to one side of the main body through a rotation axis, and rotates about the rotation axis, , 310), and the cover may be pivoted so that the loading port is open when the cream solder remaining in the supply portion is less than or equal to a specified number.

As used herein, the term "module " includes units comprised of hardware, software, or firmware and may be used interchangeably with terms such as, for example, logic, logic blocks, components, or circuits. A "module" may be an integrally constructed component or a minimum unit or part thereof that performs one or more functions. "Module" may be implemented either mechanically or electronically, for example, by application-specific integrated circuit (ASIC) chips, field-programmable gate arrays (FPGAs) And may include programmable logic devices.

At least some of the devices (e.g., modules or functions thereof) or methods (e.g., operations) according to various embodiments may be implemented with instructions stored in a computer-readable storage medium in the form of program modules. When the instruction is executed by the processor, the processor may perform a function corresponding to the instruction.

The computer-readable recording medium may be a hard disk, a floppy disk, a magnetic medium such as a magnetic tape, an optical recording medium such as a CD-ROM, a DVD, a magnetic-optical medium such as a floppy disk, The instructions may include code generated by the compiler or code that may be executed by the interpreter.

Modules or program modules according to various embodiments may include at least one or more of the elements described above, some of which may be omitted, or other elements. Operations performed by modules, program modules, or other components, in accordance with various embodiments, may be performed sequentially, in parallel, repetitively, or heuristically, or at least some operations may be performed in a different order, .

Claims (5)

A screen printer for a printed circuit board,
main body;
A supply portion disposed within the body and including a plurality of seating portions each containing a plurality of cream solders;
A solder dispensing unit disposed inside the main body and receiving one of the cream solders from the supply unit and receiving the cream solder from the supply unit, and discharging the solder to the printed circuit board using the cream solder accommodated in the mounting unit;
A discharging unit disposed inside the main body and discharging the cream solder discharged from the mounting portion of the solder discharging unit to the outside; And
And a movable rail provided in a rail shape so that the solder discharge unit can move between the supply portion and the discharge portion,
Wherein the supply unit includes:
And is connected to an inlet formed on one surface of the main body,
The cream solder contained in the mounting portion is aligned with the mounting portion of the solder discharging unit and the cream solder contained in the mounting portion is mounted on the mounting portion of the solder discharging unit, To the image forming apparatus. The method according to claim 1,
Wherein the supply unit includes:
A portion provided in the shape of a plate and rotated in the lateral direction,
Wherein when the solder discharging unit is positioned to receive the cream solder, the seating portion accommodating the cream solder among the seating portions formed on one side of the supplying portion rotates until the seating portion accommodating the cream solder is aligned with the mounting portion of the solder discharging unit. Screen printer. The method according to claim 1,
Wherein the supply unit includes:
When the cream solder contained in the mounting portion of the solder dispensing unit is not present and the mounting portion of the mounting portions in which the cream solder is accommodated is aligned with the mounting portion of the solder dispensing unit, the cream solder accommodated in the mounting portion is supplied to the mounting portion of the solder dispensing unit And a mounting member for pushing the cream solder accommodated in the mounting portion into the mounting portion of the solder discharging unit. The method according to claim 1,
Wherein the solder discharge unit comprises:
And a discharging member for discharging the accommodated cream solder by pushing the received cream solder in a specified direction when the remaining amount of the cream solder accommodated in the mounting portion of the solder discharging unit is equal to or smaller than a specified size. The method according to claim 1,
Further comprising a cover coupled to one side of the main body through a rotation shaft so as to be adjacent to the charging port and pivotable about the rotation axis and arranged to open and close the charging port,
Wherein the cover comprises:
And when the amount of the cream solder remaining in the supply portion is equal to or less than the specified number, the charging port is rotated to open the charging port.

Images