JP6043964B2 - Paste supply device and screen printing machine - Google Patents

Description

  The present invention relates to a paste supply apparatus and a screen printing machine that supply paste to a mask that is in contact with a substrate in a screen printing machine.

  2. Description of the Related Art Conventionally, as a paste supply device that supplies paste to a mask that is in contact with a substrate in a screen printing machine, a device that extrudes and supplies paste onto a mask from a syringe that stores the paste is known (for example, Patent Documents). 1). The paste stored in the syringe is supplied in a sealed state consisting of a cylindrical container called a paste pot and an inner lid inserted into the cylindrical container. The paste is transferred from the paste pot to the syringe. There is also known a paste supply device in which the paste pot itself is used as a syringe instead of changing (for example, Patent Document 2). In this case, after holding the paste pot in the pot holding portion so that the through-hole provided in the bottom portion faces downward and the downward movement is restricted, the lower surface of the elevating member is lowered by paste pressing means such as a cylinder. The structure may be configured such that the paste is pressed out from the through-hole by pressing down on the inner lid from below and lowering the inner lid in the cylindrical container and pressurizing the paste in the cylindrical container. it can.

JP 2011-140176 A JP 2010-172928 A

  However, in the paste supply apparatus configured as described above, when the inner lid is pushed down in the cylindrical container, the elevating member is in vacuum contact with the inner lid, and when the elevating member is raised for replacement of the paste pot or the like In some cases, the inner lid is not easily separated from the elevating member, and the entire paste pot is pulled up from the pot holder through the inner lid. For this reason, the operator has to manually pull the paste pot away from the elevating member, and there is a problem that the work efficiency is reduced accordingly.

  Therefore, the present invention has an object to provide a paste supply device and a screen printing machine that can prevent the disadvantage that the paste pot is pulled up when the elevating member with the inner lid pushed down is raised in the cylindrical container of the paste pot. And

  The paste supply apparatus according to claim 1, wherein the paste pot is configured such that an inner lid is movably provided and the paste is accommodated in a cylindrical container having a through hole at the bottom, and the through hole is directed downward. A pot holder that holds the paste pot in a state in which the downward movement of the cylindrical container is restricted, and the lower surface of the elevating member is pressed against the inner lid from above to lower the elevating member, whereby the cylindrical container A paste pressing means for pressing the inner lid down to press the paste in the cylindrical container out of the through hole, and a lower surface of the elevating member is provided with a notch that opens to the outer edge. It was.

  A paste supply apparatus according to a second aspect is the paste supply apparatus according to the first aspect, wherein the elevating member is provided with a hole penetrating in the thickness direction.

  The paste supply apparatus according to claim 3, wherein the paste pot is configured such that the inner lid is movably provided and the paste is accommodated in a cylindrical container having a through hole at the bottom, and the through hole is directed downward. A pot holding portion that holds the paste pot in a state in which the downward movement of the cylindrical container is restricted, and a plurality of extended protrusions that protrude downward from the lower surface of the elevating member are pressed against the inner lid from above, and the elevating member And a paste pressing means for pressing down the inner lid in the cylindrical container to press the paste in the cylindrical container from the through hole.

  4. The screen printer according to claim 4, wherein the paste is supplied onto the mask brought into contact with the substrate, and the paste is pressed and supplied onto the mask in contact with the substrate. And a squeegee that slides on the mask to which the paste is supplied by the paste supply device.

  In the present invention, the lower surface of the elevating member is provided with a notch that opens to the outer edge, and even when the inner lid is in vacuum contact with the elevating member by pressing the inner lid, Due to the warp deformation of the inner lid, a vacuum break occurs from the notch, and the contact state between the elevating member and the inner lid is eliminated. Further, when the plurality of extended protrusions protruding downward from the lower surface of the elevating member are pressed against the inner lid from above, the inner lid does not adhere to the elevating member. For this reason, there is no inconvenience that the paste pot is pulled up through the inner lid when the elevating member is raised, and the operator does not need to manually pull the paste pot away from the elevating member. Work efficiency can be improved.

The side view of the screen printer in one embodiment of the present invention The top view of the screen printer in one embodiment of the present invention The perspective view of the squeegee unit and paste supply apparatus with which the screen printer in one embodiment of this invention is equipped. BRIEF DESCRIPTION OF THE DRAWINGS (a) Perspective view (b) Partial cross-sectional front view of paste supply apparatus in one embodiment of the present invention (A) (b) (c) The perspective view of the paste pot used for the paste supply apparatus in one embodiment of the present invention The lower perspective view of the press cylinder with which the paste supply apparatus in one embodiment of this invention is provided (A) (b) Operation | movement explanatory drawing of the paste supply apparatus in one embodiment of this invention The block diagram which shows the control system of the screen printer in one embodiment of this invention Operation explanatory diagram of a screen printing machine in one embodiment of the present invention (A) (b) Explanatory drawing of the exchange work procedure of the paste pot of the paste supply apparatus in one embodiment of this invention. (A) (b) (c) Operation | movement explanatory drawing of the paste supply apparatus in one embodiment of this invention The lower perspective view of the press cylinder with which the paste supply apparatus in the modification of one embodiment of this invention is provided (A) (b) (c) Operation | movement explanatory drawing of the paste supply apparatus in the modification of one embodiment of this invention The lower perspective view of the press cylinder with which the paste supply apparatus in another modification of one embodiment of this invention is provided

  Embodiments of the present invention will be described below with reference to the drawings. A screen printing machine 1 shown in FIGS. 1 and 2 is an apparatus that repeatedly executes screen printing of a paste Pst such as solder paste on a substrate 2, and is provided on a base 3 to hold and move the substrate 2. The moving unit 4, the mask 5 installed in a horizontal position above the substrate holding and moving unit 4, the squeegee unit 6 provided above the mask 5, the camera unit 7 provided below the mask 5, and the mask 5 above. A paste supply device 8 provided integrally with the squeegee unit 6 is provided.

  In FIG. 1, the substrate holding and moving unit 4 includes a first lift table 13 and a second lift table 13 on a base table 12 that can be moved in the horizontal plane and rotated about the vertical axis by an XYθ moving mechanism 11 provided on the base 3. The elevating table 14 has a configuration provided in this order from below.

  The XYθ moving mechanism 11 extends on the Y-axis table 11a and the Y-axis table 11a extending on the base 3 in the Y-axis direction (the front-rear direction as viewed from the operator OP shown in FIG. 2 and the left-right direction in FIG. 1). Are extended in the X-axis direction (the left-right direction as viewed from the operator OP and perpendicular to the paper surface of FIG. 1), and the θ table 11c provided on the X-axis table 11b is The X-axis table 11b moves on the Y-axis table 11a in the Y-axis direction by driving the Y-axis table 11a, and the θ-table 11c moves on the X-axis table 11b in the X-axis direction by driving the X-axis table 11b. 1 and the base table 12 is rotated about the vertical axis (referred to as the Z axis) in FIG. 1 by driving the θ table 11c. That is, the base table 12 is moved in the horizontal plane by the XYθ moving mechanism 11. The first lifting table 13 is lifted and lowered with respect to the base table 12 by driving the first lifting table lifting motor 13m, and the second lifting table 14 is lifted and lowered with respect to the first lifting table 13 by driving the second lifting table lifting motor 14m. To do.

  A pair of conveyor support members 15 are provided from the first lift table 13 so as to penetrate the second lift table 14 and extend upward. The pair of conveyor support members 15 extend in the X-axis direction and in the Y-axis direction. A pair of transport conveyors 16 disposed opposite to each other are supported. The pair of conveyors 16 supports both ends of the substrate 2 from below and conveys them in the X-axis direction. A lower receiving member 17 is provided on the upper surface of the second lifting table 14.

  A pair of clamp members (clampers 18) extending in the Y-axis direction and arranged to face each other in the X-axis direction are provided above the conveyor 16. The pair of clampers 18 is opened and closed in the Y-axis direction by the operation of the clamper opening / closing cylinder 18s, and is held (clamped) by sandwiching both ends of the substrate 2 on the transport conveyor 16.

  In FIG. 2, the mask 5 is composed of a flat plate portion 5a extending in the XY plane and a frame portion 5b that holds the outer periphery of the plate portion 5a, and within a rectangular region of the plate portion 5a surrounded by the frame portion 5b. Are provided with pattern holes 5 h corresponding to the electrodes 2 a on the substrate 2.

  In FIG. 2, a pair of substrate-side marks 2m are provided at diagonal positions of the substrate 2, and two sets of two are arranged on the plate portion 5a of the mask 5 so as to correspond to the substrate-side marks 2m. The mask side mark 5m is provided. When the substrate 2 is brought into contact with the mask 5 in a state in which the substrate side mark 2m and the mask side mark 5m are coincident in plan view, the electrode 2a of the substrate 2 and the pattern hole 5h of the mask 5 are in agreement.

  1, 2, and 3, the squeegee unit 6 includes two squeegees 22 that are arranged to face each other in the Y-axis direction below a squeegee base 21 that extends in the X-axis direction. Is moved in the Y-axis direction by the squeegee unit moving mechanism 23. The squeegee unit moving mechanism 23 includes a pair of squeegee unit moving ball screws 23a that are arranged to face each other in the X-axis direction and extend in the Y-axis direction above the mask 5, and two squeegee units that rotationally drive each squeegee unit moving ball screw 23a. Each squeegee unit moving ball screw 23a is threaded through the left and right end portions of the squeegee base 21, respectively. For this reason, when the pair of squeegee unit moving ball screws 23a are synchronously rotated in the forward and reverse directions by the two squeegee unit moving motors 23b, the squeegee base 21 is moved in the Y-axis direction accordingly. The two squeegees 22 are individually raised and lowered with respect to the squeegee base 21 by a squeegee lifting cylinder 24 provided on the squeegee base 21.

  1 and 2, the camera unit 7 includes an upper imaging camera 31 with an imaging field of view facing upward and a lower imaging camera 32 with an imaging field of view facing downward, and is moved in a horizontal plane by a camera unit moving mechanism 33. Is done.

  In FIG. 1 and FIG. 2, the paste supply device 8 presses and supplies the paste Pst onto the mask 5 in contact with the substrate 2, and is provided on the front side of the squeegee base 21. In FIG. 3, a pair of guide members 41 extending in the X-axis direction are vertically arranged on the front surface of the squeegee base 21, and extend in the X-axis direction to a block member 42 guided by the pair of guide members 41. A ball screw 43 is threaded through. The ball screw 43 is rotatable by a paste supply device moving motor 44 provided at the end of the squeegee base 21, and the block member 42 is moved in the X-axis direction by forward and reverse rotation of the ball screw 43 by the paste supply device moving motor 44. Is done.

  3 and 4 (a) and 4 (b), the paste supply device 8 is attached to the block member 42 and extends in the XZ plane, and extends in the X-axis direction on the front surface of the base plate 51. For example, a moving cylinder 52 made of, for example, a rodless cylinder, a pot holding portion 54 movably provided on a guide 53 extending in the X-axis direction by the moving cylinder 52, and a fixed upper portion of the base plate 51 are provided. A pressing cylinder 55 is provided.

  5 (a), 5 (b), and 5 (c), the paste pot 60 has an inner lid 62 that is movable in a cylindrical container 61, and accommodates the paste Pst in the cylindrical container 61. A through hole 61S is provided in the bottom 61a. Before using the paste pot 60, the cap CP attached to the open end of the cylindrical container 61 is removed (FIG. 5 (a) → FIG. 5 (b)), and the through hole 61S faces downward. (Fig. 5 (c)).

  3 and 4 (a) and 4 (b), the pot holder 54 is made of a horizontal plate-like member, and two pots are inserted into which the paste pot 60 with the cap CP removed is inserted from above. The holes 54H are provided in a state in which they are aligned in the X-axis direction.

  In FIG. 3, the paste pot 60 with the through hole 61S facing downward is inserted into each pot insertion hole 54H of the pot holding portion 54 from above, and the flange portion 61T provided on the side surface of the cylindrical container 61 is a pot. It is held in contact with the edge of the insertion hole 54H from above. Thereby, two paste pots 60 in a state where the through hole 61S faces downward and the downward movement of the cylindrical container 61 is restricted are attached to the pot holding portion 54 side by side in the X-axis direction ( FIG. 4 (a), (b)).

  4 (a) and 4 (b), the moving cylinder 52 can move the moving body 52a in the left-right direction (X-axis direction) by supplying and discharging air from the left and right ports 52p. The pot holding part 54 connected to 52a is moved in the X-axis direction, and one of the two pot insertion holes 54H provided in the pot holding part 54 is selectively placed at a position immediately below the pressing cylinder 55 (paste pressing position). (Referred to as position switching). In addition, the attachment and removal of the paste pot 60 to each pot insertion hole 54H of the pot holding portion 54 is a position where the pot insertion hole 54H that is the object of attachment or removal of the paste pot 60 is removed from the paste press-out position. It is performed in a state where it is positioned (referred to as a pot attaching / detaching position).

  3 and 4B, the pressing cylinder 55 is attached to the base plate 51 with the piston rod 55a facing downward, and the lower end of the piston rod 55a has an inner diameter that is larger than the inner diameter of the cylindrical container 61 of the paste pot 60. A disc-shaped lifting member 70 having a small outer diameter is provided. As shown in FIG. 6, the lower surface of the elevating member 70 is provided with a plurality of notches 71 that open to the outer edge, and further, a plurality of holes 72 that penetrates in the thickness direction.

  The pressing cylinder 55 projects the piston rod 55a downward, and pushes down the inner lid 62 of the paste pot 60 held in the pot insertion hole 54H located at the paste press-out position against the cylindrical container 61 by the elevating member 70. (Arrow A1 shown in FIG. 7A), pressure is applied to the paste Pst in the cylindrical container 61, and the paste Pst is pressed downward from the through hole 61S.

  Thus, in the present embodiment, the pressing cylinder 55 pushes down the inner lid 62 in the cylindrical container 61 by pressing the lower surface of the lifting member 70 against the inner lid 62 from above and lowering the lifting member 70. Thus, the paste Pst in the cylindrical container 61 is pressed out from the through hole 61S. The pressure of the paste Pst from the paste pot 60 ends when the inner lid 62 comes into contact with the bottom 61a of the cylindrical container 61 (FIG. 7B).

  In FIG. 8, the conveyance operation of the board | substrate 2 by the conveyance conveyor 16 with which the board | substrate holding | maintenance movement unit 4 is equipped in the X-axis direction, the raising / lowering operation | movement of the 2nd raising / lowering table 14 by the 2nd raising / lowering table raising / lowering motor 14m. Support operation), the substrate clamping operation of the clamper 18 by the clamper opening / closing cylinder 18s, the movement operation of the substrate 2 in the horizontal plane by the XYθ moving mechanism 11, and the lifting operation of the first lifting table 13 by the first lifting table lifting motor 13m (described later) Each control of the lifting / lowering operation of the clamped substrate 2 is performed by the control device 80 provided in the screen printing machine 1 (FIG. 8). Further, the squeegee unit moving motor 23b moves the squeegee unit 6 and the paste supply device 8 in the Y-axis direction, the paste supply device moving motor 44 moves the paste supply device 8 in the X-axis direction, and the squeegee lifting cylinder 24 performs each operation. The control device 80 also performs each control of the lifting operation of the squeegee 22 (FIG. 8). The control device 80 also controls the movement (position switching) operation of the pot holding portion 54 in the X-axis direction by the moving cylinder 52 and the press-out operation of the paste Pst from the paste pot 60 by the pressing cylinder 55 (FIG. 8). .

  The control device 80 controls each of the movement operation of the camera unit 7 in the horizontal plane by the camera unit moving mechanism 33, the imaging operation of the upper imaging camera 31 and the imaging operation of the lower imaging camera 32 provided in the camera unit 7 (FIG. 8). ). The image data obtained by the imaging operation of the upper imaging camera 31 and the image data obtained by the imaging operation of the lower imaging camera 32 are respectively input to the control device 80 and subjected to image recognition processing in the image recognition unit 80a (FIG. 8). .

  Next, the execution procedure (screen printing method) of the screen printing operation by the screen printer 1 having the above configuration will be described. First, the operator OP performs a predetermined screen printing work start operation from the input unit 81 (FIG. 8) connected to the control device 80. Upon receiving the screen printing work start operation, the control device 80 receives and transports the substrate 2 input from the outside of the screen printing machine 1 by the transport conveyor 16, and places the substrate 2 at a lower work position between the pair of clampers 18. Position. The second elevating table 14 is raised with respect to the first elevating table 13, and the lower surface of the substrate 2 is supported by the lower receiving member 17, and then the second elevating table 14 is raised to lift the substrate 2 from the transport conveyor 16. The both ends of the substrate 2 are clamped and held from the Y-axis direction by the pair of clampers 18.

  When the control device 80 clamps the substrate 2, the camera unit 7 is moved into the lower region of the mask 5, and the substrate-side mark 2 m provided on the substrate 2 is imaged by the lower imaging camera 32 from above the substrate 2. Image data of the mark 2m is acquired, and then the mask side mark 5m provided on the mask 5 is imaged by the upper imaging camera 31 from below the mask 5 to acquire image data of the mask side mark 5m. Then, image recognition based on the obtained image data of the substrate side mark 2m is performed to calculate the position of the substrate 2, and image recognition based on the image data of the mask side mark 5m is performed to calculate the position of the mask 5.

  After calculating the position of the substrate 2 and the position of the mask 5, the control device 80 moves the camera unit 7 to a position outside the area below the mask 5. Then, the operation control of the XYθ moving mechanism 11 is performed to move the substrate 2 so that the substrate side mark 2m is positioned immediately below the mask side mark 5m. As a result, the substrate 2 is aligned with the mask 5.

  When the controller 80 aligns the substrate 2 with respect to the mask 5, the controller 80 raises the first lifting table 13 of the substrate holding and moving unit 4 with respect to the base table 12 (arrow B shown in FIG. 9). As a result, the electrode 2a of the substrate 2 and the pattern hole 5h of the mask 5 are matched, and the upper surface of the substrate 2 and the upper surface of the clamper 18 are in contact with the lower surface of the mask 5 (contact process).

  The control device 80 moves the squeegee base 21 in the Y-axis direction after bringing the substrate 2 into contact with the mask 5, and moves the paste supply device 8 to a predetermined position (usually the portion in contact with the clamper 18 in front of the mask 5. To the upper position). Then, the paste supply device moving motor 44 is operated to move the paste supply device 8 in the X-axis direction, and the pressing cylinder 55 is operated to extrude the paste Pst from the through hole 61S of the paste pot 60, and the mask 5 is supplied with paste Pst (paste supply step).

  When supplying the paste Pst onto the mask 5, the control device 80 lowers one squeegee 22 with respect to the squeegee base 21, abuts the lower end thereof on the mask 5, and moves the squeegee base 21 in the Y-axis direction. By doing so (arrow C shown in FIG. 9), the squeegee 22 is slid on the mask 5 (squeegee sliding step). As a result, the paste Pst supplied onto the mask 5 in the paste supplying step is scraped by the squeegee 22, and the paste Pst is transferred to the electrode 2 a of the substrate 2 through the pattern hole 5 h of the mask 5.

  During the transfer of the paste Pst, the control device 80 moves the squeegee base 21 forward (from the left side to the right side in FIG. 9) of the screen printing machine 1 (from the left side to the right side in FIG. 9). When the squeegee 22 located on the left side of the screen is brought into contact with the mask 5 and the squeegee base 21 is moved from the rear to the front of the screen printing machine 1 (from right to left in FIG. A squeegee 22 positioned on the right side of the drawing is brought into contact with the mask 5.

  When the transfer operation of the paste Pst is completed, the control device 80 lowers the first lifting table 13 and separates the substrate 2 from the mask 5, and further separates the plate 2. After releasing the holding (clamping), the second elevating table 14 is lowered and the substrate 2 is lowered onto the conveyor 16. Then, the transport conveyor 16 is operated to carry the substrate 2 out of the screen printer 1. As a result, the screen printing operation for one substrate 2 is completed.

  When the paste Pst in one paste pot 60 becomes empty and needs to be replaced with a new paste pot 60 in the paste supplying step in the above-described screen printing operation, the operator OP receives a predetermined value from the input unit 81 described above. When the operation is performed, the control device 80 operates the pressing cylinder 55 to raise the elevating member 70 and position the elevating member 70 above the paste pot 60 (FIG. 10A, arrow A2 shown in the figure).

  The elevating member 70 that has pushed the inner lid 62 into the cylindrical container 61 is in a state of being in vacuum contact with the upper surface of the inner lid 62 of the paste pot 60 (FIG. 11A). When lifted (arrow D shown in FIG. 11B), the inner lid 62 that is in vacuum contact with the lifting member 70 is lifted together with the lifting member 70. At this time, while the inner lid 62 is warped and deformed so as to protrude upward (FIG. 11B), the cylindrical container 61 is to be pulled up from the pot holding portion 54 (pot insertion hole 54H). As described above, since the lower surface of the elevating member 70 is provided with a plurality of notches 71 opened to the outer edge, a vacuum break occurs from the notches 71 when the warp deformation of the inner lid 62 proceeds to some extent, The contact state between the elevating member 70 and the inner lid 62 is eliminated (FIG. 11 (b) → FIG. 11 (c)). Further, since the elevating member 70 is also provided with a plurality of holes 72 penetrating in the thickness direction, the vacuum break can be advanced more rapidly. For this reason, even if the elevating member 70 is raised, the inner lid 62 that is in vacuum contact with the elevating member 70 lifts the paste pot 60 so that the paste pot 60 comes out of the pot holding portion 54 (pot insertion hole 54H). Nothing will happen.

  Here, as shown in FIG. 12, the pressing cylinder 55 has a configuration having a plurality of extended protrusions 73 projecting downward on the lower surface of the elevating member 70, and the lower ends of the plurality of protrusions 73 are arranged at the inner lid 62. The upper cover 62 is pushed down from above to lower the elevating member 70, thereby pushing down the inner lid 62 in the cylindrical container 61 (arrow E1 shown in FIG. 13A) and adding the paste Pst in the cylindrical container 61. The paste Pst may be pressed out from the through hole 61S by pressing (FIG. 13A). In such a configuration, even if the inner lid 62 is pushed into the cylindrical container 61, the inner lid 62 does not come into close contact with the elevating member 70. 13 (c), the arrow E2) and the paste pot 60 is not lifted through the inner lid 62 (FIG. 13 (b) → FIG. 13 (c)).

  When the elevating member 70 is positioned above the paste pot 60 as described above, the operator OP performs a predetermined operation from the input unit 81, operates the moving cylinder 52, and switches the position of the pot holding unit 54. . As a result, the empty paste pot 60 in the pot insertion hole 54H that has been in the paste press-out position moves to the pot attachment / detachment position until a new paste pot 60 in the pot insertion hole 54H that has been in the pot attachment / detachment position until then. It moves to the paste press-out position (arrow F shown in FIG. 10B).

  After switching the position of the pot holding part 54 as described above, the operator OP lifts the empty paste pot 60 upward from the pot insertion hole 54H located at the pot attaching / detaching position (FIG. 10B). Arrow G) shown in the figure, a new paste pot 60 is attached to the pot insertion hole 54H. Note that the entire paste pot 60 is a consumable part that is used up, and the paste pot 60 that has been removed from the pot holding unit 54 due to the empty paste Pst is discarded.

  As described above, in the paste supply device 8 (screen printing machine 1) according to the present embodiment, the notch portion 71 that opens to the outer edge is provided on the lower surface of the elevating member 70, and the inner lid 62 is pushed down. Even when the inner lid 62 is in vacuum contact with the elevating member 70, a vacuum break occurs from the notch portion 71 due to the warp deformation of the inner lid 62 when the elevating member 70 is lifted, and the elevating member 70 and the inner lid 62. The contact state of is eliminated. Further, when the plurality of extending protrusions 73 protruding downward from the lower surface of the elevating member 70 are pressed against the inner lid 62 from above, the inner lid 62 is in close contact with the elevating member 70. There is no. Therefore, when the elevating member 70 is raised, there is no inconvenience that the paste pot 60 is pulled up via the inner lid 62, and the operator OP does not need to manually separate the paste pot 60 from the elevating member 70. Therefore, work efficiency can be improved accordingly.

  In addition, the shape of the notch part 71 shown by the above-mentioned embodiment is not specifically limited, For example, you may be groove shape like the notch part 71 shown in FIG. Further, the number of the notches 71 is not limited to four, and may be any number.

  Provided are a paste supply device and a screen printing machine capable of preventing the inconvenience that a paste pot is pulled up when a lifting member whose inner lid is pushed down is raised in a cylindrical container of the paste pot.

DESCRIPTION OF SYMBOLS 1 Screen printer 2 Board | substrate 5 Mask 8 Paste supply apparatus 22 Squeegee 54 Pot holding part 55 Press cylinder (paste press-out means)
60 paste pot 61 cylindrical container 61a bottom 61S through hole 62 inner lid 70 elevating member 71 notch 72 hole 73 protrusion Pst paste

Claims (4)

A paste pot comprising an inner lid movably and a paste contained in a cylindrical container having a through-hole at the bottom;
A pot holding section for holding the paste pot with the through hole facing downward in a state in which downward movement of the cylindrical container is restricted;
By pressing the lower surface of the elevating member against the inner lid from above and lowering the elevating member, the inner lid is pushed down in the cylindrical container, and the paste in the cylindrical container is pressed from the through hole. Paste extruding means for dispensing,
A paste supply device, wherein a lower surface of the elevating member is provided with a notch opening at an outer edge.   The paste supply device according to claim 1, wherein the elevating member is provided with a hole penetrating in the thickness direction. A paste pot comprising an inner lid movably and a paste contained in a cylindrical container having a through-hole at the bottom;
A pot holding section for holding the paste pot with the through hole facing downward in a state in which downward movement of the cylindrical container is restricted;
A plurality of extended protrusions projecting downward from the lower surface of the elevating member are pressed against the inner lid from above to lower the elevating member, thereby lowering the inner lid in the cylindrical container, thereby A paste supply device, comprising: paste pressing means for pressing the paste in the container from the through hole.   The paste is supplied by the paste supplying device according to any one of claims 1 to 3 and the paste supplying device according to any one of claims 1 to 3, wherein the paste is pressed and supplied onto the mask in contact with the substrate and the mask in contact with the substrate. A screen printing machine comprising a squeegee that slides on the mask.

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