JP2012015219A - Working apparatus with board support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the work time needed to remove support pins from a board support table or attach support pins to the board support table.SOLUTION: A board support table 24 has stock sections 43 removably provided on its top face, one each at an upstream and a downstream position close to a fixed chute 19A, so that support pins 40 can be collected in the stock sections 43 from the board support table 24 or disposed in the board support table 24 from the stock sections 43 by using a transfer/absorption nozzle 20. The stock sections 43, made of a steel with magnetic properties, have, on their top face, a plurality of bearing holes 44 into which the support pins 40 are to be inserted, and are placed and attached on stepped portions 24A and 24B. In this case, they are positioned and attached when a plurality of positioning pins 46 installed upright in each of the stepped portions 24A and 24B are inserted into positioning holes 47 opened in each of the stock sections 43.

Description

  The present invention relates to a working apparatus including a substrate support table including a plurality of support pins that support a substrate.

  A screen printing machine (working apparatus) that applies a coating agent on a screen by moving a squeegee onto a substrate supported by a support pin of this type of substrate support apparatus is disclosed in, for example, Patent Document 1. .

JP 2000-211108 A

  However, for example, instead of supporting the printed circuit board by the support pins of the substrate support table, a surface support table (a support table having a horizontal upper surface and supporting the printed circuit board with or without suction) is used. When mounting on a support table and using this surface support table, the support pins must be removed from the substrate support table one by one, and conversely, the surface support table is removed from the substrate support table. When the printed circuit board is supported by the support pins of the substrate support table, the support pins must be disposed on the substrate support table, and a considerable time is required for the operation.

  Therefore, an object of the present invention is to shorten the work time required for removing the support pins from the substrate support table or attaching the support pins to the substrate support table.

  Therefore, according to a first aspect of the present invention, there is provided a working apparatus including a substrate support table including a plurality of support pins for supporting a substrate, wherein a stock unit for collecting the support pins from the substrate support table is provided as the substrate support table. It is characterized in that it is detachably provided.

  According to the second aspect of the present invention, in the working apparatus including the substrate support table including a plurality of support pins for supporting the substrate, the stock portion for distributing the support pins to the substrate support table is provided as the substrate support table. It is characterized in that it is detachably provided.

  According to the third invention, in the working apparatus having the substrate support table including a plurality of support pins for supporting the substrate, the stock portion capable of storing the support pins is detachably provided on the substrate support table. It is characterized by.

  According to a fourth invention, in the first to third inventions, the stock portion is detachably provided on the substrate support table near the fixed chute among the pair of transport chutes for guiding the transport of the substrate. It is characterized by.

  According to a fifth invention, in the first to third inventions, when the stock portion is attached to the substrate support table, it is attached via a positioning device.

  According to a sixth invention, in the first to fifth inventions, the stock portion is formed with a knob that protrudes outward from the substrate support table.

It is a front view of a screen printing machine. It is a right view of the principal part of a screen printer. In a state where the substrate support table to which the stock portion is attached is lowered, the upper stage (A) is a plan view of the substrate support apparatus, and the lower stage (B) is a partial front view of the substrate support apparatus. It is a front view which shows the left part of a board | substrate support table. It is a front view which shows the right part of a board | substrate support table. In a state where the substrate support table with the stock part removed is lowered, the upper stage (C) is a plan view of the substrate support apparatus, and the lower stage (D) is a partial front view of the substrate support apparatus. In a state where the substrate support table to which the stock portion is attached is raised, the upper stage (E) is a plan view of the substrate support apparatus, and the lower stage (F) is a partial front view of the substrate support apparatus as viewed from the arrow X in the upper stage (E). It is. In a state where the substrate support table with the stock part removed is lowered, the upper stage (G) is a plan view of the substrate support apparatus, and the lower stage (H) is a partial front view of the substrate support apparatus. The other embodiment of a stock part is shown, The upper stage (I) is a top view of the right part of a board | substrate support table, and the lower stage (J) is a front view of the right part of a board | substrate support table.

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. Working devices equipped with a substrate support device include a screen printing machine that applies a coating agent on a printed circuit board, an adhesive application device that applies an adhesive agent on the printed circuit board, and an electronic device that mounts electronic components on the printed circuit board. In this embodiment, a screen printer will be described as an example. FIG. 1 is a front view of the main part of the screen printer, and FIG. 2 is a right side view of the main part of the screen printer.

  As shown in FIG. 1, the screen printing machine 1 includes a substrate support device 12 installed on a base 11, screen support means 13 disposed above the substrate support device 12, and a substrate support device 12. First imaging means 14 for imaging a substrate recognition mark KM placed diagonally on a printed circuit board P, which is a substrate disposed between the screen support means 13 and supported by the substrate support device 12, and screen support means 13 A second image pickup means 15 for picking up an image of a screen recognition mark attached to the screen S placed above the screen S and supported by the screen support means 13, and a pair of print heads 16A and 16B arranged above the screen S (FIG. 2). Reference), a supply conveyor 17 for supplying the substrate P onto the substrate support device 12, and a discharge conveyor 18 for discharging the substrate P from the substrate support device 12. And a monitor below for projecting an image captured by the first and second imaging means 14, 15.

  The substrate support device 12 has a first moving mechanism 21 for moving in the X-axis direction (see FIG. 1) extending in the horizontal direction, and a rotation provided on the first moving mechanism 21 for rotating in a horizontal plane. A mechanism 22, a second moving mechanism 23 provided on the rotating mechanism 22 for moving in the direction of the Z-axis extending in the vertical direction, and a second moving mechanism (hereinafter referred to as a block base) 23 are provided. A plurality of support pins described later, a substrate support table 24 that supports these support pins, and a pair of fixed chutes 19A and a movable chute 19B that are provided above the substrate support table 24 and convey the printed circuit board P in the X-axis direction. The conveyance chute comprised is provided.

  The screen support means 13 includes a screen support frame 25 that supports the peripheral edge of the lower surface of the screen S, cylinders 26 and 26 that are disposed above the screen support frame 25 and press the screen S against the screen support frame 25, and horizontal And a moving mechanism 27 for moving in the direction of the Y axis extending in the direction.

  The first imaging means 14 includes a substrate recognition camera 28, a moving mechanism 29 that moves the substrate recognition camera 28 in the X-axis and Y-axis directions, and an illumination device that irradiates the substrate P on the substrate support table 12 with light. (Not shown). The second imaging means 15 includes a screen recognition camera 31, a moving mechanism 32 that moves the camera 31 in the X-axis direction, and an illumination device that irradiates light onto the substrate P on the substrate support table 12 (not shown). The camera 31 is moved in the Y-axis direction by the moving mechanism 34 of the print heads 16A and 16B.

  As shown in FIG. 2, the print heads 16A and 16B are arranged at intervals in the Y-axis direction, and squeegees 33A and 33B are attached to the lower end portions, respectively, and are simultaneously moved in the Y-axis direction by the moving mechanism 34. While moving, the vertical movement mechanisms 35A and 35B individually move in the Z-axis direction. When the print heads 16A and 16B move to the left in FIG. 2, the right print head 16A descends and the squeegee 33A slides on the screen S and moves to the right in FIG. The left print head 16B descends and the squeegee 33B slides on the screen S. Therefore, two printing processes are performed by one reciprocating movement of the print heads 16A and 16B.

  As shown in FIG. 3, a plurality of support holes 41 are attached to the upper surface of the substrate support table 24 at regular intervals so as to contact the back surface of the printed circuit board P and attach and detach support pins 40 that horizontally support the printed circuit board P. A plurality of rows and a plurality of columns are formed. Therefore, by inserting the support pins 40 into the appropriate support holes 41, the substrate support table 24 is raised by driving a Z-axis drive motor (not shown), and the inserted support pins 40 are moved to the printed circuit board P. The printed circuit board P can be horizontally supported by the support pins 40 in contact with the lower surface.

  As shown in FIG. 3, on the upper surface of the substrate support table 24, a rectangular stock portion 43 in a plan view is detachably provided at an upstream position and a downstream position near the immovable fixed chute 19A. The support pins 40 are collected from the substrate support table 24 to these stock portions 43 by the transfer suction nozzle 20 provided in the substrate recognition camera 28 that can move in the X-axis and Y-axis directions. To the substrate support table 24.

  As shown in FIGS. 4 and 5, the steel stock portion 43, which is a magnetic material, has a plurality of rows and columns of support holes 44 into which the support pins 40 are inserted, and is fixed. Mounted and mounted on stepped portions 24A and 24B formed corresponding to the stock portion 43 having a rectangular shape in plan view at upstream and downstream positions near the chute 19A. In this case, a plurality of positioning pins 46 are erected on each stepped portion 24A, 24B, and a positioning hole 47 is opened in each stock portion 43 corresponding to these positioning pins 46. Although the magnet 48 is embedded in the upper surface of the support table 24, the magnet 48 is not necessarily provided.

  The orthogonal sides of the stock portions 43 correspond to the sides of the step portions 24A and 24B, and when the stock portions 43 are placed on the substrate support table 24, step portions are formed on the sides of the stock portions 43. Since each side of 24A and 24B can contact and determine the position of the stock part 43, the number of positioning pins 46 may be one.

  Therefore, when the operator mounts each stock portion 43 with the plurality of support pins 40 mounted on the step portions 24A and 24B and attaches to the substrate support table 24, the state shown in FIG. 6 is changed to the state shown in FIG. Thus, when the positioning pins 46 of the stepped portions 24A and 24B are inserted into the positioning holes 47 from above and the respective stock portions 43 are positioned and attached to the substrate supporting table 24, the substrate supporting table 24 The lower surface of each stock portion 43 is attracted to the magnet 48 embedded in the upper surface.

  Thus, after attaching each stock part 43 to the said board | substrate support table 24, it moved to the X-axis and the Y-axis direction by the moving mechanism 29 between the said board | substrate support table 24 and each stock part 43, and fell. The support pins 40 housed in the respective stock portions 43 are sucked and taken out by the transfer suction nozzle 20 and then lifted, moved in the X-axis and Y-axis directions, and further lowered to appropriately adjust the substrate support table 24. It can be transferred into the storage hole 41 and inserted.

  Then, after the support pins 40 are transferred to the substrate support table 24, as shown in FIG. 7F, when the support pins 40 support the back surface of the printed circuit board P, the block base 23 and the substrate support table 24 are moved. The support pin 40 is brought into contact with the lower surface of the printed circuit board P in a state where it is raised by driving the Z-axis drive motor and avoids the electronic component DB already mounted on the back surface of the printed circuit board P. The printed circuit board P can be supported horizontally.

  According to the embodiment as described above, it is possible to shorten the work time required for removing the support pins 40 from the substrate support table 24 or attaching the support pins 40 to the substrate support table 24.

  Next, when supporting the printed circuit board P on which the electronic component DB is not mounted on the back surface, or while avoiding the electronic component mounted on the back surface of the printed circuit board P, the portion on which the electronic component is not mounted is more reliably secured. For example, in the case where the substrate is supported uniformly, a surface support table 49 that supports the back surface of the printed circuit board P with the horizontal upper surface 49A is attached to the substrate support table 24. The surface support table 49 may be a table that vacuum-sucks the printed circuit board P when the upper surface 49A is in contact with the printed circuit board P to support it horizontally, or may be a table that does not vacuum-suck.

  However, when the surface support table 49 is attached to the substrate support table 24, first, the surface support table 49 is moved between the substrate support table 24 and each stock portion 43 in the X-axis and Y-axis directions by the moving mechanism 29. And the support pin 40 inserted into the storage hole 41 of the substrate support table 24 is sucked and taken out by the lowered transfer suction nozzle 20 and then lifted and moved in the X-axis and Y-axis directions, By further descending, all the support pins 40 are transferred into the respective support holes 44 of the respective stock portions 43.

  When the surface support table 49 is attached to the substrate support table 24, the support pins 40 inserted into the accommodation holes 41 of the substrate support table 24 do not interfere with the surface support table 24 and do not interfere with the surface support table 49. The support pins 24 that do not interfere with the mounting of the support pins 24 may be left on the substrate support table 24 and the other support pins 24 may be transferred to the respective stock portions 43.

  Then, the operator removes each stock portion 43 from which the support pins 40 have been collected from the substrate support table 24, so that when the surface support table 49 is mounted on the substrate support table 24, the support pins 40 on each stock portion 43 are Try not to get in the way.

  Next, the positioning pins 52 erected on the substrate support table 24 are inserted into the plurality of positioning holes 51 provided on the back surface of the two mounting blocks 50 fixed to the lower surface of the surface support table 49. Then, the surface support table 49 is attached so as to be placed on the substrate support table 24 (FIG. 8).

  Then, the block base 23 and the substrate support table 24 are raised by driving the Z-axis drive motor, the upper surface 49A is brought into contact with the lower surface of the printed circuit board P, and the printed circuit board P is horizontally supported by the surface support table 49. Can do.

  Another embodiment of the stock unit described above will be described with reference to FIG. That is, the stock portion 43A is made of steel, which is a magnetic material, and is detachably provided at an upstream position and a downstream position near the immovable fixed chute 19A. A plurality of support holes 44 into which the support pins 40 are inserted are provided on the upper surface. It is the same as the previous embodiment in that it is mounted on the stepped portions 24A and 24B formed in rows and in a plurality of columns and formed at the upstream position and the downstream position near the fixed chute 19A.

  In this case, a plurality of positioning pins 46 are erected on each stepped portion 24A, 24B, and a positioning hole 47 is opened in each stock portion 43A corresponding to these positioning pins 46. The point that the magnet 48 is embedded in the upper surface of the support table 24 is also the same.

  The difference from the previous embodiment is that each stock portion 43A is formed with a knob (handle) 43B protruding outward from the substrate support table 24 along the fixed chute 19A, and an operator's upper surface is formed on the knob 43B. It is that the hollow part 43C which inserts a finger from upper direction was formed.

  That is, the stock portion 43A attached to the step portion 24A formed at the upstream position near the fixed chute 19A is formed so as to protrude the knob 43B in the upstream direction, and the stock portion attached to the step portion 24A formed at the downstream position. 43A is formed so that the knob 43B protrudes from the substrate support table 24 in the downstream direction. Thereby, for example, the operator inserts the thumb into the recess 43C on the upper surface of the knob 43B and holds the other finger with the back surface of the knob 43B to grasp the stock portion 43A by hand. It becomes easy to remove the stock part 43A or attach it in reverse.

  In addition, even when all or a part of the plurality of support pins 40 on the substrate support table 24 are replaced with different types, for example, those having different outer diameters, the stock portions 43 and 43A that store the necessary support pins 40 are used. Is mounted on the substrate support table 24, and the support pins 40 accommodated in the stock portions 43 and 43A are transferred to the substrate support table 24 by the transfer suction nozzle 20, or conversely, the transfer suction nozzle 20 transfers the support pins 40. The support pins 40 can be transferred from the substrate support table 24 to the stock portions 43 and 43A.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various embodiments described above without departing from the spirit of the present invention. It encompasses alternatives, modifications or variations.

12 Substrate support device 19A, 19B Transport chute 14A, 14B Step 20 Transfer suction nozzle 24 Substrate support table 40 Support pin 43, 43A Stock portion 43B Knob 44 Support hole 46 Positioning pin 47 Positioning hole

Claims (6)

  In a working apparatus having a substrate support table having a plurality of support pins for supporting a substrate, a stock portion for collecting the support pins from the substrate support table is provided detachably on the substrate support table. A working apparatus comprising a substrate support table as a feature.   In a working apparatus having a substrate support table having a plurality of support pins for supporting a substrate, a stock portion for distributing the support pins to the substrate support table is provided detachably on the substrate support table. A working apparatus comprising a substrate support table as a feature.   In a working apparatus having a substrate support table having a plurality of support pins for supporting a substrate, a substrate support table comprising a detachable stock portion capable of storing the support pins in the substrate support table. A working device provided.   The said stock part is provided in the said board | substrate support table near the fixed chute of a pair of conveyance chute which guides conveyance of the said board | substrate so that attachment or detachment is possible. A working device having a substrate support table.   4. The working apparatus including the substrate support table according to claim 1, wherein the stock portion is attached to the substrate support table via a positioning device.   6. A working apparatus comprising a substrate support table according to claim 1, wherein a knob that protrudes outward from the substrate support table is formed in the stock portion.

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