JPH067934U - Work fixing device for fully automatic screen printing machine - Google Patents

Abstract

(57) [Abstract] [Purpose] To securely fix and support the work during printing, and to reliably apply and print the resist etc. even on the work with through holes, warpage, and distortion. [Structure] Clamping means 10 are provided in front and rear portions of a printing table 7 of a printing device 6 into which aligned works W are carried in along a printing direction. This clamping means 10
Below the printing table 7, an elevating cylinder 36 is provided on a slide base block 34 arranged so as to advance and retreat by an advancing and retracting cylinder 31, and a clamp plate 11 is attached to an upper end of a bridge plate 38 that is inserted through the printing table 7 to ascend and descend. Become. Further, the initial operating position of the clamping means 10 itself is controlled and adjusted by the adjusting mechanism 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is mainly for automatically performing a series of operations such as inputting a work as a printed circuit board, aligning position corresponding to the coating printing position, coating printing, discharging, etc. when coating and printing resist or the like on the printed circuit board. The present invention relates to a work fixing device for a fully automatic screen printing machine, which can securely fix and support a work at the time of printing in a fully automatic screen printing machine, and can reliably apply and print a resist or the like even on a work having through holes, warpage, or distortion.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, there has been provided a fully automatic screen printing machine provided with an alignment table that positions a thrown workpiece in correspondence with a predetermined coating printing position when coating a resist or the like on a printed circuit board (work). The alignment is carried out after the alignment mark on the work is read by, for example, a camera after it is loaded and set on the alignment table, and the alignment table is in the X direction, which is the direction in which the work is conveyed, and in the direction substantially orthogonal to it. By adjusting the movement in each direction, the θ angle, which is the tilt angle with respect to the transport direction and the transport direction, the relative positional deviation from the normal position is corrected. After alignment, the work table fixed to the vacuum is carried to the printing device by the carrying table, and in the printing device, the work is sucked and fixed on the printing table by the vacuum, and then printing is performed. .

That is, in such a conventional fully automatic screen printing machine, as described in Japanese Patent Application No. 2-310621 filed by the present applicant, the work on the printing table at the time of printing is printed. In order to fix the paper, a vacuum-type fixing and supporting means that sucks air from the bottom of the work and adsorbs it to the printing table surface was adopted.

[0004]

[Problems to be Solved by the Invention] However, in the case of a printed circuit board (industrial board), a large number of through holes are opened in the work, so that the fixing by the vacuum becomes insufficient, and the position is changed during printing. In some cases, there was a gap. As described above, if the work is not fixedly positioned on the printing table, the alignment work already performed by reading the work alignment mark becomes completely meaningless, and the screen printing plate position is Print misregistration occurs when they do not match.

Not only that, but even if a single-sided board without through holes can be printed without any problems, with a double-sided board with through holes formed, vacuum suction is performed at the time of resist printing. Ink is sucked into the through holes of the work, causing bleeding and sagging, making the print pattern inaccurate. Further, if the substrate is warped or distorted and is large, it becomes extremely difficult to adsorb and fix the substrate, and in some cases coating printing cannot be performed.

Therefore, the present invention has been devised in view of various existing conditions as described above, and automatically performs a series of operations such as work input, position alignment, coating and printing of resist, etc. When carrying out the work after the alignment, the fully automatic screen printing machine is designed so that when the work is carried into the printing device and printed, it is securely fixed in place in the printing device without causing the work to be displaced. For the purpose of providing a work fixing device.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the present invention, the input work W is aligned by the aligning device 3 on the aligning table 4 in correspondence with the printing position, and then is fed to the printing device 6 by the transport device 5, After the printing on the printing table 7 is completed, in the fully automatic screen printing machine that is carried out to the discharge device 9, the work placed on the printing table 7 of the printing device 6 is placed on the printing position. Clamping means 10 for pressing and fixing the front and rear portions of W in the printing direction to the upper surface of the printing table 7 is provided.

The clamp means 10 is configured symmetrically with respect to each of the printing tables 7 divided in the front and back in the printing direction, and moves forward and backward with respect to the central gap portion of the printing table 7 in the front and back in the printing direction. It is configured to move up and down with respect to the upper surface of the printing table 7 so that the front and rear portions of the work W are pressed and fixed by the respective clamp plates 11.

The clamp means 10 itself is a guide fixed to the cylinder rod of the advancing / retreating cylinder 31 attached and fixed to the clamp base plate 30 below the printing table 7 and fixed to the back surface of the printing table 7 along the front and rear in the printing direction. A slide base block 34, to which a clamp guide 33 that meshes with a clamp guide rail 32 that is fixedly laid on the side surface of the base 16 is fixed, is connected, and the slide base block 34 is attached to and fixed to the slide base block 34. The cylinder rod 36 is connected and fixed to a bridge plate 38 which is guided by an elevating guide 37 which is also laid on the slide base block 34. The bridge plate 38 itself is attached to the front and rear ends in the printing direction of the printing table 7. A long puncture along the It can be constructed by penetrating the ride elongated hole 39 and mounting and fixing the clamp plate 11 on the upper end of the bridge plate 38.

The clamping means 10 is adapted such that the initial operating position thereof can be adjusted and set in advance by the aid mechanism 15 according to the size of the work W.

The adjusting mechanism 15 for this purpose is provided with guide bases 16 along the printing direction on the left and right sides of the back surface of the printing table 7, which are front and back along the conveyance direction of the work W, and the adjusting guide rails 17 are provided on the side surfaces of the guide base 16. While the fixing block 21 is fixedly laid, the adjusting feed screw 19 which is driven to rotate by the driving of the adjusting motor 18 is supported on the back surface of the printing table 7 along the printing direction, and the adjusting block 21 which moves back and forth by the rotation of the adjusting feed screw 19 is supported. The adjust feed screw 19 is screwed into the adjust block 21 and the adjust base pipe 22 is fixed to the adjust block 21. The adjust base pipe 22 has its both ends engaged with the adjust guide rails 17. 23: Adjust guide on pre The clamp base plate 30 can be connected and fixed to the adjusting guide on plate 24 by connecting the fixing base plate 30 to the adjusting guide on plate 24.

[0012]

[Action]

 In the work fixing device of the fully-automatic screen printing machine according to the present invention, when the aligned work W is fed from the aligning device 3 to the printing device 6 by the transport device 5, the work W is divided into the front and rear in the printing direction. The work W is stopped on the printing table 7 across the central gap of the printing table 7.

The clamp means 10 operates on the work W stopped and set on the printing table 7. That is, the advancing / retreating cylinder 31 attached to the clamp base plate 30 below the printing table 7 is actuated, and is guided by the clamp guide rails 32 and the clamp guides 33 along the front and rear of the printing direction, so that the slide base block 34 is moved to the work. Move forward to W side. When the slide base block 34 is advanced, the bridge plate 38 is also advanced in the slide elongated hole 39 formed in the printing table 7, and stopped at the workpiece W edge position.

Next, when the elevating cylinder 36 operates and the bridge plate 38 itself is lowered by being guided by the elevating guide 37, the clamp plate 11 at the upper end of the bridge plate 38 is lowered, and the printing direction of the work W is changed. The front and rear edges of the are pressed against the print table 7 and are sandwiched together with the print table 7.

The adjustment control operation of the adjusting mechanism 15 prior to the clamp operation of the clamp plate 11 sets the initial operation position of the clamp plate 11 corresponding to the size of the work W. The adjustment feed screw 19 rotated by the forward and reverse movements of the adjustment motor 18 feeds the adjustment block 21 integrated with the adjustment base pipe 22 to which the slide base blocks 34 are fixed at both ends. The clamp base plate 30 that does not move back and forth moves and adjusts the clamp means 10 itself, and moves and adjusts the clamp plate 11 to the operation start position.

When the screen printing is completed, in the clamping means 10, the clamp plate 11 is raised by the operation of the elevating cylinder 36, and then retracted and retracted by the operation of the advancing / retreating cylinder 31 to prepare for the next operation.

[0017]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 7 and 8, a fully automatic screen printing machine in which the work fixing device of the present invention is incorporated is intended for printing with a cloth. For example, a work W, which is a printed circuit board, is loaded into the aligning device 3 by the loading device 1, and preliminary alignment is performed by the preliminary aligning device 2 incorporated in the aligning device 3, and then the aligning device 3 itself. This is done by. When the main alignment is completed, the work W after alignment is sent to the printing device 6 by the transport device 5, and at the same time, the work W is firmly fixed on the printing table 7 by the clamp means 10 according to the fixing device of the present invention. During this period, application printing is performed by the squeegee unit 8 that runs substantially orthogonal to the conveyance direction of the work W. Then, when the printing is completed, the work W is carried out from the printing device 6 to the discharge device 9, and these devices 1, 2, 3, 6, 8 are arranged along the carrying direction of the work W. They are arranged in sequence.

The alignment table 4 in the alignment device 3 and the printing table 7 in the printing device 6 are divided into left and right portions along the conveyance direction of the work W. Then, the carry-in table 5A and the carry-out table 5B of the carrying device 5 advance and retreat in synchronization with each other in the central gap portions of the left and right parts thereof, and the carry-in table 5A is moved between the aligning device 3 and the printing device 6. The carry-out table 5B reciprocates between the printing device 6 and the discharging device 9 while being raised and lowered in association with the advance and retreat.

As described above, the work fixing device according to the present invention prints the work W placed on the printing position by being sent onto the printing table 7 during the resist coating printing performed by the printing device 6. With the clamping means 10 for pressing and fixing the front and rear parts in the printing direction on the upper surface of the printing table 7, the work W is fixed so as to be pressed on the printing table 7, and the front and rear parts in the printing direction of the work W are moved forward and backward, and moved up and down. It is designed to be sandwiched together with the printing table 7 by the clamp plate 11 which is used.

That is, the clamp means 10 is symmetrically configured for each of the left and right divided printing tables 7 (see FIGS. 1 and 2), and is arranged in the printing direction with respect to the central gap portion of the printing table 7. It moves forward and backward, and moves up and down with respect to the upper surface of the printing table 7 so that the front and rear portions of the work W are pressed and fixed by the respective clamp plates 11, respectively. Details of the structure of either one are given.

As shown in the figure, the clamp means 10 moves the slide base block 34 forward and backward with respect to the clamp base plate 30 below the printing table 7, and also with respect to the slide base block 34. The clamp plate 11 is attached to the upper ends of the bridge plates 38 and 44 which vertically move through the printing table 7, and the clamp means 10 itself has an initial operating position corresponding to the size of the work W. The adjusting mechanism 15 allows adjustment and setting in advance.

As shown in FIGS. 2 and 3, the adjusting mechanism 15 is provided with guide bases 16 along the printing direction on the left and right sides of the back surface of the printing table 7, which are the front and back along the conveyance direction of the work W. Then, the adjustment guide rails 17 are fixedly laid on the inner side surfaces of the guide bases 16. On the other hand, for example, an adjust feed screw 19 which is driven to rotate by a belt or the like by driving an adjust motor 18 fixed to the frame of the printing device 6 is supported on the back surface of the printing table 7 in a state along the printing direction, and the adjust feed is carried out. The adjusting block 21 which advances and retreats by the rotation of the screw 19 is screwed into the adjusting feed screw 19 and mounted. An adjust base pipe 22 extending left and right is fixed to the adjust block 21, and both ends of the adjust base pipe 22 are connected to the left and right adjust guides 23 meshing with the adjust guide rails 17 through an adjust guide on plate 24. Further, the clamp base plate 30 is connected and fixed to the adjust guide-on plate 24.

Now, when the adjusting motor 18 is rotationally driven in the forward and reverse directions, the adjusting block 21 moves forward and backward in the printing direction due to the screw feeding action of the adjusting feed screw 19, and both ends of the adjusting base pipe 22 are moved. The left and right adjust guide on plates 24 are adjusted and set to predetermined front and rear positions along the printing direction.

The clamp means 10 itself is associated with the adjusting guide on plate 24 whose position is adjusted by the adjusting mechanism 15. That is, as shown in the drawing, the cylinder rod of the advancing / retreating cylinder 31 fixedly connected to the adjusting guide-on plate 24 and attached to the rear surface of the clamp base plate 30 located below the guide base 16 is fixed to the outside of the guide base 16. A slide base block 34, to which a clamp guide 33 that meshes with a clamp guide rail 32 that is fixedly laid on the side surface is fixed, is connected via a floating angle 35. A cylinder rod of an elevating cylinder 36 attached and fixed to the slide base block 34 is connected to and fixed to the slide base block 34 by a bridge plate 38 guided by an elevating guide 37 also laid on the slide base block 34. The bridge plate 38 itself is inserted through front and rear end portions in the printing direction of the printing table 7 into slide long holes 39 that are opened long along the printing direction, and are arranged on the left and right along the printing direction. A clamp plate 11 is mounted and fixed between the upper ends of the left and right bridge plates 38.

Further, the left and right bridge plates 38 are connected to each other by a clamp lower plate 42 reinforced by a rib plate 41 fixed to the lower surface so that the left and right bridge plates 38 integrally move forward and backward. There is. Further, an auxiliary bridge plate 44 is erected and fixed on the upper surface of the clamp lower plate 42 through a joint block 43 at appropriate intervals, and the upper end of the auxiliary bridge plate 44 is inserted into the printing table 7 to be clamped. By connecting to the lower surface of the plate 11, it is possible to prevent warping, warpage, etc. that occur in the clamp plate 11 itself.

In the clamp means 10 itself, when the advancing / retreating cylinder 31 attached to the clamp base plate 30 is actuated and the slide base block 34 is advanced toward the central gap portion side of the printing table 7, the clamp plate 11 slides in the elongated slot 39. The work W on the printing table 7 is pressed when the clamp plate 11 is moved down with respect to the upper surface of the printing table 7 by moving along with the movement of the lifting guide 37.

In the figure, the guide guide rail 17 and the clamp guide rail 32 fixedly laid on the left and right outer side surfaces of the guide base 16 respectively have the former 17 inside and the latter 32 outside. However, in some cases, this can be reversed, and the adjusting mechanism 15 can be configured to be guided and run outside the guide base 16.

Further, reference numeral 50 in the drawing denotes a work lift mechanism, which retracts and retracts the carry-in table 5 A of the carrying device 5 from below the work W placed on the print table 7 of the printing device 6. In order to smooth the respective backward and forward movements of the carry-out table 5B, the work W placed on the print table 7 after printing is lifted is incorporated in the central gap portion of the print table 7.

As shown in FIG. 1 and FIG. 3, the work lift mechanism 50 is configured to be vertically swung with the front end in the transport direction of the work W on each of the inner surfaces of the front and rear divided printing tables 7 as a fulcrum. A work lift 51 is supported on the first link plate 54, the printing table 7 and a cylinder rod of a lift cylinder 53 mounted on the rear surface of the printing table 7 at the rear of the work W in the conveying direction via a cylinder bracket 52. Is connected to a work lift 51 via a link shaft 56 and a second link plate 57 supported by a base block 55 attached to the work table 51, and the work cylinder 51 is swung with respect to the printing table 7 surface by the operation of a lift cylinder 53. It is made to appear and disappear.

Then, this operation is performed after the printing operation of the printing device 6 is finished and immediately before the carry-in table 5A and the carry-out table 5B of the carrying device 5 travel backward, and the rear side of the work W in the carrying direction is moved. lift. As a result, below the work W, the carry-in table 5A of the transport device 5 is retracted and retracted to the aligning device 3 side while leaving the work W, and the carry-out table 5B is also used to carry out the work W. It goes backwards and approaches, and these are done smoothly.

Further, as shown in FIG. 2, the printing table 7 is also provided with a suction mechanism 60 for fixing the work W. The suction mechanism 60 is provided on the upper surface of the printing table 7 as a work. A suction pipe 62 is connected to a vacuum pump (not shown) or the like, which is connected to a large number of suction holes 61 formed in a row and formed substantially orthogonal to the transport direction of W.

The suction holes 61 are connected to the respective suction pipes 62 as a group of the suction holes 61, which are arranged substantially orthogonal to the conveyance direction of the work W, and communicate with the respective suction pipes 62. By opening and closing the valve 63, the suction operation in the suction hole 61, which is unnecessary depending on the size of the work W, is stopped.

The squeegee unit 8 travels in a direction substantially orthogonal to the transport direction of the work W, and a squeegee 83 is also provided on a squeegee pipe 82 provided between carriage blocks 81 arranged on the left and right of the traveling direction. Doctors 85 are fixed to the pipes 84, respectively. When the traveling direction of the squeegee 83 and the doctor 85 is changed to a forward direction or a backward direction during traveling by a predetermined vertical movement mechanism for controlling the squeegee 83 and the doctor 85, the squeegee 83 descends during printing and the screen printing plate. The work W on the printing table 7 and the carry-in table 5A is rubbed on S to perform coating printing, and when not printing, the doctor 85 descends and also contacts and travels on the screen printing plate S during coating printing. Make the unevenness of the offset resist ink uniform.

In the figure, reference numeral 70 is a bias mechanism for adjusting the displacement of the squeegee unit 8 in the traveling direction, and 90 is a distance between the screen printing plate S and the work W during coating printing by the squeegee 83. It is an office computer mechanism that separates the plates.

Next, to explain an example of the operation of the work fixing device of the present invention, the work W introduced into the aligning device 3 by the introducing device 1 is stopped and placed on the aligning table 4 by the preliminary aligning device 2. When the work W is placed and stopped, the movement of the aligning device 3 is adjusted in each of the X, Y, and θ directions to accurately position the work W at a predetermined printing position.

When the alignment and fixing are completed, the transport device 5 is operated, and while the carry-in table 5A is once raised to the upper position, the transport device 5 is moved forward to the printing position of the printing device 6 to carry in the work W, and the workpiece W is moved in the printing direction. Screen printing is performed after the work W is stopped on the printing table 7 across the central gap portion of the printing table 7 divided into front and rear.

At this time, the initial operating position of the clamp plate 11 is set in advance by a control operation for the adjusting mechanism 15 in accordance with the size of the work W, and the clamp means 10 that operates prior to the screen printing works. Fix W firmly on the printing table 7. That is, when the work W is carried onto the printing table 7 until it is fixed on the carry-in table 5A and lowered to the lower position of the same level as the print table 7, the advancing / retreating slide attached to the clamp base plate 30 below the printing table 7 is moved. The slider 31 is operated, and the slide base block 34 is advanced to the work W side by moving the guide 31 by the clamp guide rail 32 and the clamp guide 33. Along with this, the bridge plate 38 also moves forward along the slide elongated hole 39 and stops at the workpiece W edge position. Next, the elevating cylinder 36 operates, and the elevating guide 37 guides the bridge plate 38 itself to lower, and the clamp plate 11 attached to the upper end of the bridge plate 38 lowers to move forward and backward in the printing direction of the work W. The end is pressed against the printing table 7 and is sandwiched together with the printing table 7.

On the other hand, the initial position setting of the clamp operation in the adjusting mechanism 15 is to drive the adjust motor 18 to rotate in the forward and reverse directions, and the adjusting block 18 is screwed by the adjusting feed screw 19 accordingly. 21 moves forward and backward in the printing direction, and the position of the clamp base plate 30 is adjusted via the left and right adjust guide on plates 24 at both ends of the adjust base pipe 22 to set the entire position of the clamp means 10 itself. is there.

During the printing operation, the suction mechanism 60 causes the work W to be attracted to the upper surface of the printing table 7 by the operation thereof, if necessary.

Next, screen printing is performed on the work W by the squeegee unit 7, and when printing is completed, the work W lifted up in an inclined shape by the work lifting mechanism 50 on the printing table 7. Are carried out to the discharge device 9 by the carry-out table 5B.

In the main operation switch panel 65 of the aligning device 3, a parameter setting switch (not shown) is used to change the adjustment amount of the clamp plate 11 corresponding to the size of the work W, for example, 1 It is possible to set the adjustment of the clamp allowance of about 4 mm, the necessity of using the clamp means 10, the necessity of using the suction mechanism 60, the presence or absence of the combined use of these 10, 60, and the like.

[0042]

[Effect of device]

 The present invention is configured as described above. Therefore, when a series of operations such as loading of work W, alignment, coating printing of resist, and discharging are automatically performed by a fully automatic screen printing machine, for example, When applying and printing a resist or the like when manufacturing a printed circuit board or the like, even if there is a through hole, warp or distortion in the work W in the printing device 6 without causing a positional deviation in the work W Can be securely fixed in place, and accurate application printing can be performed.

That is, according to the present invention, the printing table 7 of the printing device 6 is provided with the front and rear portions in the printing direction of the work W sent on the printing table 7 and placed at the printing position. This is because the clamp means 10 for pressing and fixing on the upper surface of 7 is provided, and thereby the work W during printing is firmly fixed and supported on the printing table 7.

Further, the clamp means 10 is provided with an elevating cylinder 36 on the slide base block 34 arranged so as to advance and retreat by the advancing / retreating cylinder 31 attached to the clamp base plate 30 below the printing table 7, whereby the printing table 7 is provided. Since the clamp plate 11 is attached to the upper end of the bridge plate 38 which is inserted and raised and lowered, the clamp plate 11 can be moved back and forth with respect to the work W and moved up and down extremely smoothly. That is, the forward / backward movement of the slide base block 34 is smoothly guided along the printing direction by the clamp guide rail 32 fixedly laid on the side surface of the guide base 16 fixed to the back surface of the printing table 7, and the bridge plate 38 is This is because the elevating guides 37 mounted on the slide base block 34 smoothly move up and down with the printing table 7 inserted. Not only that, the bridge plate 38 is moved back and forth along the slide long hole 39 opened in the printing table 7, so that the movement along the printing direction is made smoother.

Further, since the initial operating position of the clamping means 10 itself is controlled and adjusted by the adjusting mechanism 15, the entire clamping means 10 can be moved by the operating control of the adjusting mechanism 15. Even if the work W is large or small, it can be dealt with by adjusting the position of the work W in advance, shortening the time required for the fixed operation and enabling quick processing of the entire operation.

As described above, according to the present invention, it is possible to securely fix the work at a predetermined position in the printing apparatus without causing the work to be displaced during printing, and to perform the registration based on the accurate position. It has excellent effects such as printing.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of a printing table in a printing apparatus incorporating the fixing device of the present invention.

FIG. 2 is a side sectional view of the same.

FIG. 3 is a partially cutaway front view of the clamp means.

FIG. 4 is a plan sectional view of an essential part of the same.

FIG. 5 is a bottom view of the same main portion.

FIG. 6 is a side view of the same main part.

FIG. 7 is a partially cutaway plan view of the fully automatic screen printing machine.

FIG. 7 is a front view of the same.

[Explanation of symbols]

W work S screen printing plate 1 input device 2 preliminary alignment device 3
Matching device 4 Matching table 5 Transfer device 5
A carry-in table 5B carry-out table 6 printing device 7
Printing table 8 Squeegee unit 9 Ejection device 10 Clamping means 11 Clamp plate 15 Adjusting mechanism 16 Guide base 1
7 Adjust guide rail 18
Adjust motor 19 Adjust feed screw
21 Adjust Block 22 Adjust Base Pipe 2
3 Adjust guide 24 Adjust guide on plate 30 Clamp base plate 3
1 Advance / Retract cylinder 32 Clamp guide rail 33 Clamp guide 34 Slide base block 35 Floating angle 3
6 Lifting cylinder 37 Lifting guide 38 Bridge plate 3
9 Slide long hole 41 Rib plate 42 Clamp lower plate 43 Joint block 4
4 Auxiliary bridge plate 50 Work lift mechanism 51 Work lift 5
2 Cylinder bracket 53
Lift cylinder 54 1st link plate
55 base block 56 link shaft 57 second link plate 60 suction mechanism 61 suction hole 6
2 Suction pipe 63 Valve 65 Main operation switch panel 70 Bias mechanism 81 Carriage block 8
2 Squeegee pipe 83 Squeegee 84 Doctor pipe 8
5 Doctor 90 Office system

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 9, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of a printing table in a printing apparatus incorporating the fixing device of the present invention.

FIG. 2 is a side sectional view of the same.

FIG. 3 is a partially cutaway front view of the clamp means.

FIG. 4 is a plan sectional view of an essential part of the same.

FIG. 5 is a bottom view of the same main portion.

FIG. 6 is a side view of the same main part.

FIG. 7 is a partially cutaway plan view of the fully automatic screen printing machine.

FIG. 8 is a front view of the same.

Claims (5)

[Scope of utility model registration request] 1. A fully automatic system for aligning an input work by a aligning device in correspondence with a printing position on a aligning table, then sending it to a printing device by a carrying device, and carrying it out to an ejecting device after printing on the print table is completed. In the screen printing machine, the printing table of the printing device is provided with a clamp means for pressing and fixing the front and rear parts in the printing direction of the workpiece fed on the printing table and placed at the printing position on the upper surface of the printing table. A work fixing device for a fully automatic screen printing machine. 2. The clamp means is symmetrically configured with respect to each of the print tables divided in the front and rear in the printing direction, and moves forward and backward in the front and rear in the printing direction with respect to a central gap portion of the print table, and the printing is performed. 2. The work fixing device for a full-automatic screen printing machine according to claim 1, wherein the clamp plate is moved up and down with respect to the upper surface of the table so that the front and rear parts of the work are pressed and fixed by the respective clamp plates. 3. The clamp means itself comprises a clamp rod fixedly laid on a side surface of a guide base fixed to a cylinder rod of an advancing / retreating cylinder attached and fixed to a clamp base plate below the printing table along the front and rear of the printing direction on the back surface of the printing table. Clamp guides that mesh with guide rails are connected to a slide base block, and the cylinder rod of the lifting cylinder that is attached and fixed to this slide base block is connected to the slide base block by the lifting guide that is also laid on the slide base block. The bridge plate is connected and fixed to the guided bridge plate, and the bridge plate itself is inserted into the long slide holes that are opened long in the printing direction at the front and rear ends of the printing table in the printing direction. Mount the clamp plate on The work fixing device for a fully automatic screen printing machine according to claim 1, wherein the work fixing device is mounted and fixed. 4. The work of a fully automatic screen printing machine according to claim 1, wherein the clamp means is adapted such that an initial operating position thereof can be adjusted and set in advance by an adjusting mechanism in correspondence with the size of the work. Fixing device. 5. The adjusting mechanism has guide bases attached along the printing direction on the left and right sides of the back surface of the printing table, which are the front and rear in the conveyance direction of the work, and the adjusting guide rails are fixedly laid on the side surfaces of the guide base. The adjust feed screw, which is rotated by the drive of the adjust motor, is supported on the back surface of the printing table along the printing direction, and the adjust block that advances and retreats by the rotation of the adjust feed screw is screwed into the adjust feed screw. An adjust base pipe extending in the left-right direction is fixed to the adjust block, and both ends of the adjust base pipe are connected to the left and right adjust guides meshing with the adjust guide rails via the adjust guide on plate, and further, to the adjust guide on plate. The clamp base The work fixing device for a fully automatic screen printing machine according to claim 4, wherein the plates are connected and fixed.