JP4952697B2 - Screen printing machine and screen printing method - Google Patents

Description

The present invention relates to a screen printing machine and a screen printing method for individually transferring and positioning a substrate through two substrate transfer paths and performing a screen printing operation on the substrate.

  A screen printing machine, which is a type of substrate production apparatus, transports and positions a substrate by a substrate transport path, then presses the substrate against the mask plate installed above the substrate transport path from below and supplies the paste on the mask plate. The paste is transferred to the substrate by moving the squeegee. The mask pattern formed on the mask plate is formed in accordance with the shape and position of the electrode formed on the substrate, and is directed in an appropriate direction according to the orientation of the substrate positioned on the substrate transport path. Need to be installed. The mask plate is installed at a mask installation position above the substrate conveyance path when the operator manually inserts it into a guide rail extending in a horizontal direction orthogonal to the substrate conveyance direction through the substrate conveyance path.

  In such a screen printing machine, work execution means for executing a screen printing work which is a board production work (work for producing a board) is production data created according to the electrode arrangement of the board (Patent Document 1). If the production data is different, for example, the squeegee printing pressure conditions corresponding to the position on the mask plate change.

  In many cases, the screen printing machine has one substrate conveyance path, but some have two. In the case where two substrate transport paths are provided, the work execution means performs a screen printing operation on the substrates positioned in each of the two substrate transport paths. Here, if the screen printing machine has one substrate transport path, only one type of production data is sufficient, and even if two substrate transport paths are provided, the same model substrate can be transported to two substrates. If they are introduced so that they are in the same direction with respect to the path, these substrates are directed in the same direction on the two substrate transfer paths, so that the production data can be a single type.

On the other hand, when the screen printing machine has two substrate transport paths, it is necessary to install the same mask plate one by one at the mask installation position above each of the two substrate transport paths. At this time, the operator applies the right mask plate from the working position on the side (right side) of the right substrate transport path to the right mask plate for the substrate positioned on one (assumed to be the right side) substrate transport path. The left mask plate, which is inserted into the guide rail extending above the transport path from the right side and positioned on the other (assumed to be the left side) substrate transport path, is the side of the left substrate transport path ( It is inserted from the left side into a guide rail extending from above the left side substrate transport path from the left side work position. That is, the two mask plates are inserted into the guide rails in directions opposite to each other in the horizontal direction perpendicular to the substrate transport direction by the substrate transport path. The two mask plates are installed so as to face the same direction with respect to the screen printing machine.
JP 2007-27775 A

However, if the two mask plates are set to face the same direction with respect to the screen printing machine, the operator depends on where he stands (ie, which of the two mask plates is to be installed). Depending on the orientation of the mask plate when inserting the mask plate into the guide rail, that is, the way the mask plate is held, the work contents will change depending on where you stand, and workability is feared due to fear of work mistakes. There was a problem that it decreased.

Accordingly, an object of the present invention is to provide a screen printing machine and a screen printing method that can improve the workability of the operator without changing the work contents depending on the position where the operator stands.

The screen printing machine according to claim 1 is arranged in parallel, corresponding to two substrate conveyance paths for individually conveying and positioning the loaded substrates and two mask plates arranged in opposite directions. When the substrates are placed in opposite directions with respect to the two substrate conveyance paths, a screen printing operation based on the first production data is performed on the substrates positioned on one of the substrate conveyance paths, for substrate positioned on the other substrate transport path and a work performing means for performing a screen printing work based on the second production data that coordinate transformation of the first production data, the first production data and the second production data Includes squeegee printing pressure conditions .

Screen printing machine according to claim 2 is the screen printing machine according to claim 1, work performing means, corresponding to the two substrate transport path to the two mask plate disposed in the same direction to each other On the other hand, when the substrates are put in the same direction as each other, the first production data and the second data for both the substrate positioned on the one substrate transport path and the substrate positioned on the other substrate transport path. A screen printing operation based on one of the production data is executed.

According to a third aspect of the present invention , there is provided a screen printing method comprising: a step of individually transporting and positioning a loaded substrate by two substrate transport paths arranged in parallel; and a substrate positioned on each substrate transport path. And a step of performing a screen printing operation , wherein the substrates are opposite to each other with respect to the two substrate transfer paths corresponding to the two mask plates arranged in opposite directions to each other. When loaded, a screen printing operation based on the first production data is performed on the substrate positioned on one substrate transport path, and the first production is performed on the substrate positioned on the other substrate transport path. A screen printing operation based on the second production data obtained by coordinate transformation of the data is executed , and the first production data and the second production data include a squeegee printing pressure condition .

A screen printing method according to a fourth aspect is the screen printing method according to the third aspect, wherein the substrates are connected to each other with respect to the two substrate transport paths corresponding to the two mask plates arranged in opposite directions. When placed in the same direction, both the first production data and the second production data are applied to both the substrate positioned on one substrate transfer path and the substrate positioned on the other substrate transfer path. Perform a screen printing operation based on.

In the present invention, when a substrate is placed so as to be opposite to each other with respect to two substrate transfer paths corresponding to two mask plates arranged in opposite directions, it is positioned on one substrate transfer path. A screen printing operation based on the first production data is performed on the printed circuit board, and a screen printing based on the second production data obtained by coordinate conversion of the first production data is performed on the substrate positioned on the other substrate conveyance path. Since the operation is performed, the same type of substrate can be produced even if the substrates are loaded in opposite directions into the two substrate transfer paths. At this time, the orientations of the two substrates positioned on the two substrate conveyance paths are different from each other with respect to the screen printing machine , but from the work position where the operator working on the substrate performs the work. When the substrates that are the work targets are viewed individually, they are the same regardless of the position where the operator is standing. Therefore, even if the position where the operator stands is changed, the work contents do not change and there is no risk of work mistakes. Therefore, the operator's workability is improved. The first production data and the second production data are in a relationship in which the same production data is coordinate-transformed. If one production data is created, the other production data can be easily created. It is sufficient to create only one substance.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a screen printing machine according to an embodiment of the present invention, FIG. 2 is a front view of a printing work execution unit constituting the screen printing machine according to an embodiment of the present invention, and FIG. FIG. 4 is a diagram for explaining the insertion direction of the mask plate with respect to the screen printing machine in the embodiment, FIG. 4 is a block diagram showing a control system of the screen printing machine in one embodiment of the present invention, FIGS. 6 (a) and 6 (b) are diagrams for explaining the operation of the printing work execution unit constituting the screen printing machine according to the embodiment of the present invention, and FIGS. 7 (a) and 7 (b) are embodiments of the present invention. FIG. 8 is a diagram illustrating a state in which the screen printing machine is performing screen printing work, and FIG. 8 is a diagram for explaining the insertion direction of the mask plate with respect to the screen printing machine in one embodiment of the present invention.

  In FIG. 1, the screen printing machine 1 according to the present embodiment includes a solder paste applied to a substrate PB that has been introduced (arrow A shown in FIG. 1) from the upstream side (left side in FIG. 1) in the conveyance direction of the substrate PB. A screen printing operation (substrate production operation) of paste such as conductive paste and the like is carried out and transported to another device (not shown) arranged on the downstream side (right side of the paper in FIG. 1) (arrow B shown in FIG. 1) ) In the following description, the conveyance direction of the substrate PB in the screen printing machine 1 is the X-axis direction, and the horizontal plane direction orthogonal to the X-axis direction is the Y-axis direction. Also, the vertical direction is the Z-axis direction.

  In FIG. 1, a screen printing machine 1 includes a base 2, and two substrate transport paths 3 that are arranged on the base 2 in parallel in the Y-axis direction and individually transport substrates PB of the same model in the X-axis direction. On the base 2, there are provided two printing work execution units 4 which are provided corresponding to the respective board transport paths 3 and perform screen printing work on the board PB independently of each other.

  In FIG. 1, each board | substrate conveyance path 3 consists of the board | substrate carrying-in conveyor 11, the board | substrate positioning conveyor 12, and the board | substrate carrying-out conveyor 13 provided along with the X-axis direction, and each consists of a pair of belt conveyor. The substrate carry-in conveyor 11 carries the substrate PB input from the outside of the screen printing machine 1 into the inside and transfers it to the substrate positioning conveyor 12. The substrate positioning conveyor 12 positions the substrate PB received from the substrate carry-in conveyor 11 at the work execution position, and after the screen printing operation for the substrate PB is completed, the substrate PB (substrate PB subjected to screen printing) is transferred to the substrate carry-out conveyor 13. Pass to. The substrate carry-out conveyor 13 carries the substrate PB received from the substrate positioning conveyor 12 out of the screen printer 1.

  In FIG. 2, each printing work execution unit 4 clamps the substrate PB positioned by the substrate transport path 3 (substrate positioning conveyor 12), aligns the substrate PB in the horizontal plane direction, and the vertical direction (Z-axis direction). A substrate alignment unit 21 that aligns the substrate, a mask plate 22 and a squeegee unit 23 provided above the substrate alignment unit 21, a camera unit 24 provided movably, and a syringe that supplies paste to the mask plate 22 A unit 25 is provided.

  In FIG. 2, the substrate alignment unit 21 of each printing work execution unit 4 is a Y table 21a that moves relative to the base 2 in the Y axis direction, and an X table that moves relative to the Y table 21a in the X axis direction. 21b, a θ table 21c that rotates relative to the X table 21b around the Z axis (within a horizontal plane), a base plate 21d fixed to the θ table 21c, a first elevating plate 21e that moves up and down relative to the base plate 21d, and a first A clamper 21h comprising a second lifting plate 21f that moves up and down relative to the lifting plate 21e, a substrate support block 21g fixed to the second lifting plate 21f, and a pair of members that open and close in the Y-axis direction above the substrate positioning conveyor 12. (See also FIG. 1).

1 and 2, the mask plate 22 has four sides supported by a mask frame 22a having a rectangular shape in plan view, and an inner region surrounded by the mask frame 22a has an upper surface of the substrate PB that is a printing object. A mask pattern (not shown) made up of a large number of holes corresponding to the shape, position, etc. of the electrode DT (FIG. 1) formed on is provided.

  1, 2, and 3, two parallel guide rails 26 extending in the Y-axis direction are provided above the substrate alignment portion 21, and the mask plate 22 is formed by the operator OP. Inserted into the guide rail 26 from the outside in the Y-axis direction (arrows C1 and C2 shown in FIGS. 1 and 3) and slid on the guide rail 26 to be installed at a predetermined mask installation position (position shown in FIG. 2). Is done. The operator OP inserts the mask plate 22 into the guide rail 26 and installs it at the mask installation position in the correct orientation according to the orientation of the substrate PB positioned by the substrate positioning conveyor 12 of the printing work execution unit 4.

  In this screen printing machine 1, there are two substrate transport paths 3, and therefore there are two printing work execution units 4, so there are also two mask plates 22, and each of these two mask plates 22 is one of two It is installed at a mask installation position above the substrate transfer path 3. As shown in FIG. 3, the operator OP has a mask plate 22 on the right side for working on the substrate PB positioned on the substrate transport path 3 on one side (assuming that it is on the right side, lower side in FIG. 3). From the right side (right side) of the substrate transport path 3 on the right side, it is inserted from the right side into the guide rail 26 extending above the right side substrate transport path 3 (arrow C1 shown in FIG. 3), and the other (tentatively left side). 3, the left mask plate 22 which is the work target of the substrate PB positioned on the substrate transport path 3 on the upper side of the paper surface from the side (left side) position of the left substrate transport path 3 is the left substrate. Inserted into the guide rail 26 extending above the conveyance path 3 from the left side (arrow C2 shown in FIG. 3). That is, the two mask plates 22 are opposite to each other in the horizontal direction (Y-axis direction) orthogonal to the transport direction (X-axis direction) of the substrate PB by the substrate transport path 3 (upward and downward directions in FIG. 3). ) Is inserted into the guide rail 26.

  In FIG. 2, the squeegee unit 23 has a configuration in which two squeegees 23 a facing in the Y-axis direction are attached to a moving plate 23 p provided so as to be movable in a horizontal plane direction with respect to the substrate alignment unit 21. . Each squeegee 23a is a “spar” -like member extending in the X-axis direction, and can move up and down with respect to the moving plate 23p.

  In FIG. 2, the camera unit 24 includes a first camera 24 a with an imaging surface facing downward on a moving plate 24 p provided to be movable in a horizontal plane direction with respect to the substrate alignment unit 21, and an imaging surface upward. The second camera 24b is attached.

  In FIG. 2, the syringe unit 25 is provided with a syringe 25 a that discharges a paste to be printed on the substrate PB downward on a moving plate 25 p provided so as to be movable in a horizontal plane direction with respect to the substrate alignment unit 21. It becomes the composition.

  The substrate loading conveyor 11, the substrate positioning conveyor 12, and the substrate unloading conveyor 13 that constitute each of the substrate conveying paths 3 are transported and positioned by the control device 30 (FIG. 4) included in the screen printer 1. This is done by controlling the operation of the substrate transport path operating mechanism 31 (FIG. 4).

Movement of the Y table 21a with respect to the base 2 in the Y axis direction, movement of the X table 21b with respect to the Y table 21a in the X axis direction, rotation of the θ table 21c with respect to the X table 21b around the Z axis, and rotation with respect to the base plate 21d (that is, θ The controller 30 controls the Y table to move the first elevating plate 21e (with respect to the table 21c), the second elevating plate 21f with respect to the first elevating plate 21e (that is, the substrate support block 21g) and the opening / closing operation of the clamper 21h. This is done by controlling the operation of the substrate alignment unit operating mechanism 32 (FIG. 4) including actuators such as the drive motor My and the X table drive motor Mx (FIG. 2).

  The movement operation of the squeegee unit 23 (moving plate 23p) is performed by the control device 30 controlling the operation of the squeegee unit moving mechanism 33 (FIG. 4) including an actuator (not shown). The apparatus 30 is operated by controlling the operation of the squeegee lifting mechanism 34 (FIG. 4) including the squeegee lifting cylinder 23b (FIG. 2).

  The moving operation of the camera unit 24 (moving plate 24p) is performed when the control device 30 controls the operation of the camera unit moving mechanism 35 (FIG. 4) including an actuator (not shown). The first camera 24a is controlled by the control device 30 to image the substrate position detection mark M (FIG. 1) provided on the substrate PB aligned by the substrate alignment unit 21 (FIG. 4). The two cameras 24b are controlled by the control device 30 and image a mask position detection mark (not shown) provided on the mask plate 22 (FIG. 4). Image data obtained by imaging with the first camera 24a and image data obtained by imaging with the second camera 24b are input to the control device 30 (FIG. 4).

  The movement operation of the syringe unit 25 (moving plate 25p) is performed by the operation control of the syringe unit moving mechanism 36 (FIG. 4) including an actuator (not shown) by the control device 30, and the paste supply operation by the syringe 25a is as follows. The control device 30 performs the operation control of the syringe operation mechanism 37 (FIG. 4) including an actuator or the like (not shown).

  The control device 30 of the screen printing machine 1 uses a detection means (not shown) to transfer the substrate from the operator OP (or another device (not shown) installed on the upstream side of the substrate transfer path 3) to the substrate transfer path 3 (substrate carry-in conveyor 11). When it is detected that the PB has been input, the substrate carry-in conveyor 11 and the substrate positioning conveyor 12 are operated, and the loaded substrate PB is received by the substrate carry-in conveyor 11 and carried into the screen printing machine 1. Pass to. When the substrate positioning conveyor 12 receives the substrate PB, the control device 30 operates the substrate positioning conveyor 12 as it is, stops the substrate positioning conveyor 12 when the substrate PB reaches the work execution position, and moves the substrate PB to the work execution position. (Substrate positioning step).

  After positioning the substrate PB at the work execution position, the control device 30 raises the second elevating plate 21f relative to the first elevating plate 21e so that the upper surface of the substrate support block 21g contacts the lower surface of the substrate PB from below. Then, the substrate PB is supported on the substrate support block 21g (FIG. 5A). When the substrate PB is supported by the substrate support block 21g, the control device 30 clamps the substrate PB by the clamper 21h and fixes the substrate PB on the substrate positioning conveyor 12 (that is, on the substrate transport path 3) (substrate fixing step). ).

  After fixing the substrate PB on the substrate positioning conveyor 12, the control device 30 performs the movement of the camera unit 24 and the imaging operation control of the first camera 24a to acquire the image data of the substrate position detection mark M of the substrate PB, and While grasping the position of PB, the movement of the camera unit 24 and the imaging operation control of the second camera 24b are performed to acquire the image data of the mask position detection mark of the mask plate 22, and the position of the mask plate 22 is grasped.

After grasping the position of the substrate PB and the position of the mask plate 22, the control device 30 moves the substrate PB in the horizontal plane direction by the substrate alignment unit 21 and positions the substrate PB at a predetermined position directly below the mask plate 22. After that, the upper surface of the substrate PB is brought into contact with the lower surface of the mask plate 22 from below by the vertical movement of the substrate PB by the substrate alignment unit 21 (raising the first elevating plate 21e). As a result, the mask plate 22 is aligned with the substrate PB (FIG. 5B).

  After aligning the substrate PB with respect to the mask plate 22, the control device 30 executes screen printing on the substrate PB. First, the syringe unit 25 is moved above the mask plate 22, and the paste PT is supplied from the syringe 25a to the upper surface of the mask plate 22 (FIG. 6A).

  When supplying the paste PT to the upper surface of the mask plate 22, the control device 30 lowers one squeegee 23a and brings the lower edge of the squeegee 23a into contact with the upper surface of the mask plate 22 (FIG. 6B). Then, the squeegee unit 23 is moved in the Y-axis direction, the paste PT is scraped by the squeegee 23a, and the paste PT is filled into the pattern holes of the mask plate 22 (squeezing process).

  FIG. 6B shows a state in which the paste PT is scraped in the direction of arrow D by moving the left squeegee 23a in the direction of arrow D in the figure. When the paste PT is scraped in the direction opposite to the arrow D, the right squeegee 23a in the drawing is brought into contact with the upper surface of the mask plate 22 and the squeegee unit 23 is moved in the direction opposite to the arrow D.

  After filling the pattern hole of the mask plate 22 with the paste PT, the control device 30 lowers the second elevating plate 21f relative to the first elevating plate 21e and separates the mask plate 22 from the substrate PB. Thereby, so-called plate separation is performed, and the paste PT filled in the pattern holes of the mask plate 22 is printed (transferred) onto the substrate PB (plate separation step).

  The control device 30 causes the two printing work execution units 4 to execute such screen printing work in parallel.

  The control device 30 prints the paste on the substrate PB, and when the screen printing operation on the substrate PB is completed, the controller 30 operates the substrate alignment unit 21 to adjust the position of the substrate positioning conveyor 12 with respect to the substrate carry-out conveyor 13. When the position adjustment of the substrate positioning conveyor 12 with respect to the substrate carry-out conveyor 13 is completed, the control device 30 operates the substrate positioning conveyor 12 and the substrate carry-out conveyor 13 to transfer the substrate PB from the substrate positioning conveyor 12 to the substrate carry-out conveyor 13, and The substrate carry-out conveyor 13 carries out the substrate PB to another device arranged on the downstream side of the screen printing machine 1 (substrate carry-out process).

  As described above, the screen printing machine 1 transports the substrate PB through the two substrate transport paths 3 and positions the substrate PB at the work execution position, and performs screen printing work by the work execution means including the two print work execution units 4 and the control device 30. (Board production work) is executed. Here, a series of steps including the substrate alignment step, paste supply step, squeezing step, and plate separation step is a screen printing operation that is a substrate production operation for the substrate PB positioned on each substrate conveyance path 3. It is a work execution process to execute.

  By the way, in this screen printing machine 1, regardless of whether the substrates P are loaded in opposite directions or in the same direction with respect to the two substrate conveyance paths 3, Since the substrate PB can be produced, this will be described below.

In FIG. 4, a storage unit 41 is connected to the control device 30, and the storage unit 41 includes
Production data for allowing the control device 30 to execute screen printing work (substrate production work) on the substrate PB positioned on the substrate conveyance path 3 with respect to the two printing work execution units 4 is stored. This production data is individually created for the substrate PB on which the substrate is to be produced, depending on the electrode arrangement of the substrate PB (that is, the model of the substrate PB). The squeegee printing pressure conditions and the like change depending on the position on the mask plate.

  In the screen printing machine 1 according to the present embodiment, the same type of substrates PB may be inserted into the two substrate transport paths 3 so that their orientations are different from each other. Although necessary, when the direction of loading the board PB of the same model is reversed, the production data becomes rotationally symmetric with the center of the board PB as the center of rotation, so that it has a certain direction (forward direction). If the production data (referred to as the first production data) for the substrate PB (see the lower substrate PB in FIG. 7A) is created, the substrate that is loaded in the opposite direction (reverse direction). Production data (referred to as second production data) for PB (see the upper substrate PB in FIG. 7 (a)) is simply created by converting the first production data into coordinates based on rotational symmetry. can do. In the storage unit 41, first production data corresponding to the substrate PB loaded in the forward direction and second production data corresponding to the substrate PB loaded in the reverse direction are stored in advance.

  The screen printing machine 1 is provided with a work mode setting switch 42 connected to the control device 30 (FIG. 4). The work mode setting switch 42 is used to set work modes for the substrates PB of the two print work execution units 4 and is manually operated by an operator OP. The operator OP can select and set either the first work mode or the second work mode with the work mode setting switch 42.

  The first work mode is set when the operator OP puts the substrates PB into the two substrate transport paths 3 so as to be opposite to each other (FIG. 7A), and the first work mode is set. The control device 30 uses the first production data stored in the storage unit 41 for the substrate PB loaded in the forward direction on the one substrate transport path 3 to make a screen by the printing work execution unit 4. For the substrate PB that has been printed and loaded into the other substrate transport path 3 in the opposite direction, the screen printing operation by the printing operation execution unit 4 is performed using the second production data stored in the storage unit 41. Execute. As a result, the two types of substrates PB subjected to screen printing in different directions are discharged from the two substrate transport paths 3 from the two substrate transport paths 3 (FIG. 7A).

  On the other hand, the second work mode is set when the operator OP puts the substrates PB into the two substrate transport paths 3 so as to be in the same direction (FIG. 7B). When set, the control device 30 stores the storage unit 41 for both the substrate PB loaded in the forward direction into one substrate transport path 3 and the substrate PB loaded in the forward direction into the other substrate transport path 3. A screen printing operation by the printing operation execution unit 4 is executed using the first production data stored in the above. Alternatively, the second production data stored in the storage unit 41 is stored for both the substrate PB loaded into the one substrate transport path 3 in the reverse direction and the substrate PB loaded into the other substrate transport path 3 in the reverse direction. The screen printing work by the printing work execution unit 4 is executed. As a result, the substrates PB that have been screen-printed in the same direction are discharged from the two substrate transport paths 3 from the two substrate transport paths 3 (FIG. 7B).

Here, the operator OP can select the first work mode by operating the work mode setting switch 42 because the screen printing machine 1 performs screen printing in different directions with respect to other devices arranged downstream thereof. This is a case where the processed substrate PB can be discharged. This is, for example, an electronic component mounting apparatus in which another apparatus disposed on the downstream side includes two board conveyance paths, and two types of screen printing performed in different directions discharged from the screen printing machine 1. This is a case where the electronic component mounting operation is performed on each of the substrates PB so that the same type of substrate PB can be produced.

  As described above, when the operator OP sets the work mode to the first work mode and operates the screen printing machine 1, as shown in FIG. The orientations of the two substrates PB are different from each other with respect to the screen printing machine 1, but the operator OP that performs the operation on the substrate PB selects the substrate PB that is the work target from the operation position where the operation is performed. When viewed individually, the orientations of the two substrates PB positioned on the two substrate transport paths 3 are the same regardless of the position where the operator OP stands. Thus, regardless of the position where the user stands, the way of holding the mask plate 22 when installing the mask plate 22 is the same (directions to be inserted into the guide rail 26 are arrows C1, C2), One position does not change the work be changed.

  On the other hand, the operator OP selects the second work mode by operating the work mode setting switch 42 because the screen printing machine 1 performs screen printing work in different directions with respect to other devices arranged downstream thereof. This is a case where the substrate PB subjected to the process cannot be discharged. This is, for example, an electronic component mounting apparatus in which another apparatus arranged on the downstream side includes one board conveyance path, and one type of board PB on which screen printing is performed in the same direction from the screen printer 1. This is the case that can only be accepted.

  As described above, the screen printing machine 1 (substrate production apparatus) according to the present embodiment is arranged in parallel, and includes two substrate conveyance paths 3 that individually convey and position the loaded substrates PB, and two substrate conveyances. When the substrates PB are thrown into the path 3 so as to be opposite to each other, the substrate production work based on the first production data is performed on the substrate PB positioned on the one substrate transport path 3. For the substrate PB positioned on the other substrate transport path 3, work execution means (two printing operation execution units 4 and 4) for executing substrate production work based on the second production data obtained by coordinate-transforming the first production data. A control device 30) is provided.

  Here, in the screen printing machine 1 according to the present embodiment, the control device 30 determines whether the first work mode is set or the second work mode is set according to the work mode set by the work mode setting switch 42. To determine whether the substrate PB is loaded in the opposite direction or the same direction into the two substrate transfer paths 3 and whether to use the first production data or the second production data depending on this. It can be said that they are making a choice.

  Further, in the screen printing method (substrate production method) by the screen printer 1 in the present embodiment, the step of individually transporting and positioning the loaded substrates PB by the two substrate transport paths 3 arranged in parallel ( Substrate positioning step) and a step of performing substrate production work on the substrate PB positioned on each substrate transport path 3 (work execution process), and the substrate PB with respect to the two substrate transport paths 3 Are placed in opposite directions to each other, a substrate production operation based on the first production data is executed for the substrate PB positioned on one substrate conveyance path 3, and the other substrate conveyance path 3. For the substrate PB positioned above, substrate production work based on second production data obtained by coordinate-transforming the first production data is executed.

As described above, in the screen printing machine 1 (screen printing method) according to the present embodiment, when the substrates PB are loaded in the opposite directions with respect to the two substrate transport paths 3, one of the substrate transport paths 3. A substrate production operation based on the first production data is executed for the substrate PB positioned above, and the first production data is subjected to coordinate conversion for the substrate PB positioned on the other substrate transport path 3. Since the board production work based on the production data 2 is executed, the same type of board PB can be produced even if the boards PB are loaded in the opposite directions into the two board transport paths 3. At this time, the orientations of the two substrates PB positioned on the two substrate transport paths 3 are different from each other with respect to the screen printing machine 1, but the operator OP who performs the operation on the substrate PB has its direction. When the substrates PB that are the work targets are individually viewed from the work position where the work is performed, the work contents are the same regardless of the position where the operator OP stands. As it is not changed, there is no fear of work mistakes, so the workability of the operator OP is improved. The first production data and the second production data are in a relationship in which the same production data is coordinate-transformed. If one production data is created, the other production data can be easily created. It is sufficient to create only one substance.

  Further, in the screen printing machine 1 according to the present embodiment, the work execution means (the two print work execution units 4 and the control device 30) causes the substrates PB to be in the same direction with respect to the two substrate transport paths 3. Based on one of the first production data and the second production data for both the substrate positioned on one substrate transport path 3 and the substrate PB positioned on the other substrate transport path 3 when loaded. The board production work is executed. Further, in the screen printing method according to the present embodiment, when the substrates PB are put in the same direction with respect to the two substrate transport paths 3, the substrates positioned on the one substrate transport path 3 and Substrate production work based on one of the first production data and the second production data is performed on both of the substrates PB positioned on the other substrate transport path 3.

  That is, in the screen printing machine 1 and the screen printing method according to the present embodiment, when the substrates PB are loaded in the opposite directions to the two substrate transport paths 3 (the operation mode is set to the first operation mode). Even when the substrates PB are loaded in the same direction with respect to the two substrate transport paths 3 (when the operation mode is set to the second operation mode). The same type of substrate PB can be produced, and other devices arranged on the downstream side of the screen printer 1 are discharged from the two substrate transport paths 3 provided in the screen printer 1 in different directions. The work mode can be freely changed depending on the configuration of the downstream apparatus, such as whether or not the work can be performed by receiving the two types of substrates PB.

  Although the embodiments of the present invention have been described so far, the present invention is not limited to those shown in the above-described embodiments. For example, in the above-described embodiment, the screen printing machine 1 includes the work mode setting switch 42, and the control device 30 determines whether the first work mode is set or not according to the work mode set by the work mode setting switch 42. It is determined whether the substrate PB is loaded in the opposite direction or the same direction in the two substrate transport paths 3 (depending on whether the two work mode is set) and whether the first production data is used according to this. Although it was in the form of selecting whether to use the second production data, the work mode setting switch 42 was not provided, and each substrate transport path 3 was provided with a detector for determining the direction of the loaded substrate PB. Whether to use the first production data or the second production data may be selected according to the orientation of the substrate PB determined by the detector.

  In the above-described embodiment, the first production data corresponding to the substrate PB loaded in the forward direction and the second production data corresponding to the substrate PB loaded in the reverse direction are stored in the storage unit 41 in advance. However, only one of these two production data may be stored in advance, and the other may be obtained by calculation when necessary.

  Further, in the above-described embodiment, the screen printing machine 1 is used as a substrate production work apparatus that is arranged in parallel and individually conveys and positions the loaded substrates and executes substrate production work on the positioned substrates. Although illustrated, the present invention is not limited to the screen printing machine 1 and can be applied to other board production apparatuses such as an electronic component mounting apparatus and an inspection apparatus.

Provided are a screen printing machine and a screen printing method capable of improving the workability of an operator without changing the work contents depending on the position of the operator.

The top view of the screen printer in one embodiment of the present invention The front view of the printing work execution part which comprises the screen printer in one embodiment of this invention The figure explaining the insertion direction of the mask plate with respect to the screen printer in one embodiment of this invention The block diagram which shows the control system of the screen printer in one embodiment of this invention (A) (b) Operation | movement explanatory drawing of the printing work execution part which comprises the screen printer in one embodiment of this invention (A) (b) Operation | movement explanatory drawing of the printing work execution part which comprises the screen printer in one embodiment of this invention (A) (b) The figure which shows the state in which the screen printing machine in one embodiment of this invention is performing screen printing work The figure explaining the insertion direction of the mask plate with respect to the screen printer in one embodiment of this invention

Explanation of symbols

1 Screen printer (substrate production equipment)
3 Substrate transport path 4 Printing work execution unit (work execution means)
30 Control device (work execution means)
PB substrate

Claims (4)

Two substrate transfer paths arranged in parallel and individually transferring and positioning the loaded substrates;
Corresponding to two mask plates arranged opposite to each other, when the substrates are placed so as to be opposite to each other with respect to the two substrate transfer paths, with respect to the substrate positioned on one of the substrate transfer paths A screen printing operation based on the first production data is performed, and a screen printing operation based on the second production data obtained by coordinate-converting the first production data is performed on the substrate positioned on the other substrate transport path. and an execution means,
The screen printer according to claim 1, wherein the first production data and the second production data include a squeegee printing pressure condition . The work execution means is positioned on one of the substrate transfer paths when the substrates are placed in the same direction with respect to the two substrate transfer paths corresponding to the two mask plates arranged in the same direction. for both the substrate positioned by the substrate and the other substrate transport path, the screen according to claim 1, characterized in that to perform the screen printing work based on one of the first production data and the second production data Printing machine . A step of individually transferring and positioning the loaded substrates by two substrate transfer paths arranged in parallel;
Executing a screen printing operation on a substrate positioned on each substrate conveyance path;
A screen printing method comprising:
Corresponding to two mask plates arranged opposite to each other, when the substrates are placed so as to be opposite to each other with respect to the two substrate transfer paths, with respect to the substrate positioned on one of the substrate transfer paths the Te perform the screen printing work based on the first production data, for substrate positioned on the other substrate conveying path running screen printing operations based on the second production data that coordinate transformation of the first production data, A screen printing method, wherein the first production data and the second production data include a squeegee printing pressure condition . The substrate positioned on one substrate transport path and the other when the substrates are placed in the same direction with respect to the two substrate transport paths corresponding to the two mask plates arranged opposite to each other The screen printing method according to claim 3, wherein a screen printing operation based on one of the first production data and the second production data is performed on both of the substrates positioned on the substrate conveyance path.

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