JPH1148444A - Matter to be printed carrying device for screen printing machine and carrying method of matter to be printed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit the carrying out of a matter to be printed easily and simplify the structure of a discharging means, in a screen printing machine, in which a coordinating unit, a printing unit and a discharging unit are arrayed sequentially. SOLUTION: One set of matter to be printed carrying table 1 is utilized not only as the register table in the register unit A and a printing table for a printing unit B but also as a carry-out table in a discharging unit C while moving the same to the discharging unit C. In other words, one set of matter to be printed carrying table 1 is reciprocated through a register process, a printing process, a discharging process and a returning process. Accordingly, a discharging means 51 for discharging printed matter W after printing out of the carrying table 1 can be provided considering only a relation to the discharging unit C without considering any relation to the printing unit B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for transporting a printing material in a screen printing machine in which an alignment section on the printing material carry-in side, a discharge section on the print material carry-out side, and a printing section therebetween are arranged side by side. It is about the method.

[0002]

2. Description of the Related Art Heretofore, in a certain screen printing machine, an alignment section to which a printing material is supplied and positioned,
A printing unit for performing printing by the printing mechanism on the printed material after the positioning is arranged in parallel, and a transport table on which the printed material is removably mounted by the positioning unit is transport driving means between the alignment unit and the printing unit. For reciprocating movement. The printed material after printing waits on the transport table in the printing unit, and is taken out of the transport table and discharged by a discharge unit provided in a discharge unit adjacent to the printing unit.

[0003]

The printing section has a printing mechanism above the transport table moved from the alignment section. Therefore, assuming that the printing mechanism is separated from the transport table after printing, the space between the transport table and the printing mechanism is narrow. It is necessary to insert the take-out mechanism of the discharge means into this space to carry out the printing medium from the transport table. Therefore, it is troublesome to carry out the printing medium, and the structure of the discharging means is complicated.

According to the present invention, a discharge unit is improved in a screen printer in which an alignment unit, a printing unit, and a discharge unit are sequentially arranged.
It is intended to easily carry out the printed material.

[0005]

The present invention will be described with reference to the reference numerals in the drawings (FIGS. 1 to 5) of the following embodiments. Claim 1
In the screen printing machine according to the present invention, the aligning section (A) to which the printing medium (W) is supplied and positioned, and the printing section for performing printing on the printing medium (W) after positioning by the printing mechanism (35). (B) and the printed material (W) after printing
And a discharge section (C) for carrying out are sequentially arranged side by side. In the printing material transport device of the screen printing machine, the transport table (1) on which the printing material (W) is removably mounted by the positioning means (1a) is provided by the alignment unit (A) and the printing unit (B). It is supported so as to be able to reciprocate with the discharge section (C) by the transport drive means (2), and is used as a matching table in the matching section (A), as a print table in the printing section (B), and in the discharge section (C). Each is also used as a discharge table.

[0006] The invention of claim 2 adds the following configuration to the invention of claim 1. The alignment unit (A) includes a supply unit (29) that supplies the printing material (W) to the transport table (1). The discharge unit (C) includes a discharge unit (51) that carries out the printed material (W) after printing from the transport table (1).

According to a third aspect of the present invention, there is provided a method for transporting a printed material of a screen printing machine, comprising the steps of: positioning the printed material (W) supplied by the aligning section (A) on the transport table (1); In the alignment step, the transport table (1) on which the printing object (W) is placed is moved to the printing unit (B) to print the printing object (W), and printing is performed in the printing step. A transport table (1) on which the printed material (W) is placed, is moved to a discharge unit (C), and the printed material (W) is discharged, and the printed material printed in the discharge process is printed. Transport table (1) from which (W) was unloaded
Is transferred to the alignment section (A), and the print substrate (W) is transported.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a screen printing machine according to an embodiment of the present invention will be described with reference to FIGS.

In the screen printing machine schematically shown in FIGS. 1 to 3, a aligning section A on the side where a print is carried in, a discharge section C on the side where a print is carried out, and a printing section B therebetween are arranged in parallel. ing. The printing substrate W (for example, an electric wiring board) is carried into the matching unit A, passes through the printing unit B, and is carried out from the discharging unit C. The conveyance direction Q of the printing material W is the front-rear direction X (see FIGS. 1 to 3 and FIG. 4), the printing material carry-in side is the front, and the print material carry-out side is the rear. A direction orthogonal to the assumed horizontal plane including the transport direction Q is defined as a left-right direction Y (see FIGS. 5 and 4).

<Printed object transport table 1 shown in FIG. 4> The printed object transport table 1 is controlled by the transport driving means 2 (described later in detail) shown in FIGS. , And is supported on the transfer table position adjusting drive means 3. The transfer table position adjusting drive means 3 includes a support table 4 attached to the transfer drive means 2, a turntable 6 that turns on the turntable 5 on the support table 4, And a movable table 9 that moves along the X-direction guide 7 and moves along the Y-direction guide 8. The turntable 6 is turned around a vertical axis 5a on an assumed horizontal plane by a servomotor 10 (drive unit). The moving table 9 includes a servo motor 11
(Drive unit) translates horizontally in the front-back direction X, and horizontally translates horizontally in the left-right direction Y by the servo motor 12 (drive unit). The transfer table 1 is mounted on the movable table 9 so as to be integrally movable.

The printing material positioning surface 1a (positioning means) on the transport table 1 is a suction surface having a large number of suction holes (not shown). Can be positioned. This suction hole (not shown) is connected to a vacuum pump 13 by a flexible hose 14.

<Conveyance driving means 2 for reciprocating the conveyance table 1> As shown in FIGS. 1 to 3, the guide rails 16 on both the left and right sides of the machine base 15 are aligned with the alignment section A, the printing section B, and the discharge section C. The left and right guide rails 16
A support table 4 of the transfer table position adjusting drive means 3 is supported on the upper part so as to be movable in the front-rear direction X. The drive shaft 17 is supported by the left and right bearings 18 between the left and right guide rails 16 in the alignment portion A, and the drive pulley 19 is attached to the drive shaft 17 so as to be integrally rotatable. Discharge section C
The driven shaft 20 is supported by the left and right bearings 21 between the left and right guide rails 16, and the driven pulley 22 is attached to the driven shaft 20 so as to be integrally rotatable. A transport belt 23 is stretched between the driving pulley 19 and the driven pulley 22. The transport belt 23 is attached to a lower side of the support table 4 of the transport table position adjusting drive unit 3. In the alignment section A, the rotation of the transport motor 24 (drive section) is transmitted to the drive shaft 19 by the drive belt 25. When the transport belt 23 is rotated by the rotation of the drive shaft 19, the transport table 1 reciprocates along the aligning section A, the printing section B, and the discharging section C together with the transport table position adjusting drive means 3, and each section A , B, C.

<Mainly, positioning means 26 of alignment unit A shown in FIG. 1> A pair of front and rear CCD cameras 27, 28 (image recognition image sensor, positioning sensor) are installed above the stop position of the transport table 1. Have been.

<Supply Means 29 Attached to the Alignment Unit A> As shown in FIG. 1, a supply conveyor 30 is installed adjacent to the alignment unit A. A supply rail 31 is provided from above the end of the supply conveyor 30 to above the stop position of the transport table 1, and a supply transfer mechanism 32 is supported on the supply rail 31. The supply transfer mechanism 32 reciprocates from above the end of the supply conveyor 30 to above the stop position of the transport table 1. In the supply transfer mechanism 32, an air cylinder 33 is movably supported along the supply rail 30, and a plurality of suction arms 34 are attached to a piston rod 33a. This piston rod 33a
Is moved up and down, each suction arm 34 is moved up and down above the end of the supply conveyor 30 or above the stop position of the transport table 1.

<Mainly the printing mechanism 35 of the printing section B shown in FIGS. 2 and 5> The printing mechanism 35 installed above the stop position of the transport table 1 is a conventionally known one. It is supported up and down. A plate frame 38 is attached below the machine frame 37 of the printing mechanism 35, and a screen plate 39 is stretched inside the plate frame 38.
Guide rails 40 are provided on both front and rear sides in the machine frame 37, and the support bases 4 are provided on the front and rear guide rails 40, respectively.
1 is supported movably in the left-right direction. A squeegee air cylinder 42 and a doctor air cylinder 43 are mounted on the front and rear support tables 41, respectively, and a squeegee 44 is provided between the piston rods 42a of the front and rear squeegee air cylinders 42. A doctor 45 is provided between the piston rods 43a of both doctor air cylinders 43.

In the machine frame 37, a front and rear reciprocating rotary belt 48 is stretched between a driven pulley 46 and a driving pulley 47, which are respectively supported on both front and rear sides on both right and left sides.
The front and rear support tables 41 are attached to the front and rear reciprocating rotating belts 48.
Are connected. The rotation of the drive motor 49 is transmitted to the drive pulley 47 by the interlock belt 50. When the front and rear belts 48 reciprocate, the squeegee 44 and the doctor 45 reciprocate in the left-right direction along the screen plate 39.

<Discharge Means 51 Attached to the Discharge Portion C> As shown in FIG. 3, a discharge conveyor 52 is provided adjacent to the discharge portion C. A discharge rail 53 is provided from above the end of the discharge conveyor 52 to above the stop position of the transport table 1, and the discharge rail 53 supports a discharge transfer mechanism 54. The discharge transfer mechanism 54 reciprocates from above the end of the discharge conveyor 52 to above the stop position of the discharge table 1. In the discharge transfer mechanism 54, an air cylinder 55 is movably supported along a discharge rail 53, and a plurality of suction arms 56 are attached to a piston rod 55a. This piston rod 55a
Move vertically, the suction arms 56 move vertically above the end of the discharge conveyor 52 or above the stop position of the transport table 1.

<Conveyance of Printed Material of Screen Printing Machine>
At the time of printing, the print substrate W is transported from the alignment unit A to the discharge unit C via the printing unit B through the following steps 1) to 4).

1) Outline of the alignment process As shown in FIG. 1, the transport table 1 stops at the alignment section A and functions as an alignment table.

The printing material W is supplied to the aligning section A by the supply transfer mechanism 32 of the supply means 29, and is mounted on the mounting surface 1a of the transport table 1 (see FIG. 4) and sucked. The printing medium W positioned on the transport table 1 is detected by the CCD cameras 27 and 28. The transport table 1 is moved by the position adjustment driving means 3 so that the detection position becomes the set position.
Is adjusted by

2) Outline of the printing process The transport table 1 on which the printing material W is placed and positioned in the alignment process moves to the printing section B as shown in FIG.
Functions as a print table.

The printing object W is printed by the printing mechanism 35. 3) Outline of Ejection Step As shown in FIG. 3, the transport table 1 on which the printing substrate W on which the printing has been performed in the printing step is placed and positioned, moves to the ejection section C, and functions as an ejection table.

The suction is released on the mounting surface 1a (see FIG. 4) of the transport table 1. Then, the printed material W after printing is carried out of the discharge unit C by the discharge transfer mechanism 54 of the discharge unit 51.

4) Outline of the Returning Step The transport table 1 from which the printed material W after the printing has been carried out in the discharging step and moved away moves to the aligning section A as shown in FIG. Then, the next printing material W is supplied to the matching unit A.

<Characteristics of the present embodiment> The present embodiment has the following characteristics. One printed material transport table 1 is used not only as an alignment table in the alignment section A and a print table in the printing section B, but also moved to the discharge section C to serve also as a discharge table. In other words, one printing medium transport table 1 is reciprocated through the above-described alignment step, printing step, discharge step, and return step. Therefore, the discharge unit 51 for unloading the printed material W from the transport table 1 only needs to be provided in relation to the discharge unit C regardless of the printing unit B. Therefore, in a screen printing machine in which the alignment section A, the printing section B, and the discharge section C are sequentially arranged in parallel, it is possible to easily carry out the printing material W and to simplify the structure of the discharge section 51.

[Other Embodiments] In addition to the above embodiments, the following configuration may be adopted. In the above-described embodiment, a number of suction holes connected to the vacuum pump 13 are used as positioning means for positioning the printing material W on the mounting surface 1a on the transport table 1, but a stopper for bringing the printing material W into contact therewith. And using a gripper for holding the printing material W,
Alternatively, they may be used in combination.

[0027]

According to the present invention, the discharging means (5) for carrying out the printed material (W) after printing from the transport table (1).
Since 1) only needs to be provided in relation to the discharge section (C) regardless of the print section (B), the matching section (A), the print section (B), and the discharge section (C) are sequentially arranged. The printing medium (W) can be easily carried out in the screen printing machine.

[Brief description of the drawings]

FIG. 1 is a schematic front cross-sectional view showing a state in which a printing medium transport table is stopped at an alignment unit in a screen printing machine according to an embodiment.

FIG. 2 is a schematic front cross-sectional view showing a state in which the printing medium transport table is stopped at a printing unit in the screen printing machine according to the embodiment.

FIG. 3 is a schematic front cross-sectional view showing a state in which the printing medium transport table is stopped at a discharge unit in the screen printing machine according to the embodiment.

FIG. 4 (a) is a schematic enlarged front view showing the transport table and its position adjusting driving means, and FIG. 4 (b) is a schematic enlarged plan view of the same.

FIG. 5 is a schematic side cross-sectional view showing a reciprocating transport drive unit of the transport table and a printing mechanism of a printing unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Convey table, 1a ... Printed material positioning mounting surface (positioning means), 2 ... Conveyance drive means, 29 ... Printed material supply means, 35 ... Printing mechanism, 51 ... Printed material discharge means, W ...
Printed material, A: matching part, B: printing part, C: discharging part.

Claims (3)

[Claims] 1. An aligning section for supplying and positioning a printing medium, a printing section for performing printing on a printing medium after positioning by a printing mechanism, and a discharge section for discharging the printing medium after printing. In the screen printing machine provided, a transport table on which a printing object is removably mounted by positioning means is supported by the transport driving means between the aligning section, the printing section and the discharge section so as to be reciprocally movable, and the aligning section is provided. A printing medium transport device for a screen printing machine, which also serves as a matching table, a printing table in a printing unit, and a discharging table in a discharging unit. 2. The printing apparatus according to claim 1, wherein the aligning unit includes a supply unit that supplies the print target to the transport table, and the discharge unit includes a discharge unit that discharges the printed print target from the transport table. A device for transporting a printed material in the screen printing machine according to the above. 3. An aligning step of positioning and mounting a printing material supplied by an aligning unit on a transport table, and moving the transport table on which the printing material is mounted in the aligning step to a printing unit to print on the printing material. Printing process, a transport table on which the printed material printed in the printing process is placed, is moved to a discharge unit, and the printed material is unloaded, and the printed material is printed in the discharging process. Through a return step of moving the transport table from which the printed matter has been carried out to the alignment unit,
A method for transporting a printing material in a screen printing machine, comprising transporting the printing material.