JPH0432675Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial field of application) This invention relates to an emulsion screen film pasting device for screen printing that sticks and sets an emulsion screen film on a screen printing plate used for screen printing. .

(Prior Art) A screen printing plate used for screen printing needs to be coated with a predetermined thickness of an emulsion that serves as a photosensitive material for plate making. At that time, there is a method in which an emulsion film of a predetermined thickness is applied to a screen printing plate using an emulsion screen film on which an emulsion coating film of a predetermined thickness has been deposited in advance. For example, the application device proposed by the present applicant is
188949 and JP-A-61-113063. That is, in this method, an emulsion bucket containing emulsion is brought into sliding contact with an emulsion bucket containing an emulsion from the screen printing plate surface on the opposite side where an emulsion screen film is placed so as to overlap the screen printing plate surface, and the emulsion layer of the emulsion screen film is infiltrated. It shall be applied in close contact with the surface. According to this method, since an emulsion screen film formed by layering an emulsion coating film with a predetermined thickness is used, a screen printing plate having an extremely accurate film thickness can be produced.

However, while the use of emulsion screen film is extremely effective, it requires other steps such as setting a vertically supported screen printing plate in a predetermined position on the screen surface, adhering it to the screen, and cutting it to the required length. .

Therefore, in Utility Application No. 61-167877, the present applicant proposed a simple and quick method for setting a vertically supported screen printing plate at a predetermined position on the screen surface, adhering it to the screen, and cutting it to the required length. We have proposed an emulsion screen film pasting device for screen printing that can be carried out and automated.

(Problem to be solved by the invention) However, in the film pasting device proposed earlier in Utility Application No. 167877/1987 (see Publication No. 74640/1988), the screen printing plate cannot be placed in a predetermined position on the screen surface. When cutting the emulsion screen film after setting it in the position, the emulsion screen film that is set on the screen surface and used for pasting is cut at its lower end by a pressure application mechanism and at its upper end by a clamp part of the film guide cutting mechanism. Even if they are supported by the rolls, the lower end of the roll-shaped raw film, which is the feeder, remains free.

Therefore, the next time the emulsion screen film is set, the lower end of the original film must be inserted through the film guiding and cutting mechanism again, which is a troublesome task, and this is one of the major causes of impeding work efficiency.

Therefore, this invention was devised in order to eliminate the shortcomings of the previous application mentioned above. To easily and quickly cut the emulsion screen film to length, and to sandwich and support the lower end of the emulsion screen film at the supply side after cutting, so that the guide setting of the emulsion screen film can be easily performed next time. Another object of the present invention is to provide an emulsion screen film pasting device for screen printing that can automate the process.

[Structure of the invention] (Means for solving the problem) In order to achieve the above-mentioned object, this invention supports a screen printing plate in a substantially vertical manner, and a wound emulsion screen film is placed above the screen printing plate. The emulsion screen film that has been pulled out is positioned and guided in contact with the screen surface of the screen printing plate from the top of the screen printing plate, is cut to a predetermined length, and the emulsion screen film is supplied after cutting. A film guiding and cutting mechanism has a cutting support section that removably clamps the lower end and the upper end of the emulsion screen film on the pasting side. a pressure coating mechanism that slides up and slides up along the screen surface while supplying emulsion knowing the opposite side of the contact side;
The present invention is characterized in that it includes an ascent start position detection mechanism that raises and retreats the cutting support portion of the film guide and cut mechanism when the pressure application mechanism rises and approaches the film guide and cut mechanism.

(Function) In this devised emulsion screen film pasting device for screen printing, the screen printing plate is supported almost vertically within the support frame, and then the emulsion screen film is pulled out from above the screen printing plate to screen the screen printing plate. Bring it into contact with the surface and reach the bottom of the screen printing plate.

At this time, the film guiding and cutting mechanism guides and positions the emulsion screen film from the top of the screen printing plate, and cuts the drawn-out emulsion screen film at the required length position while sandwiching it above and below the cutting position. .

After cutting, the lower end of the emulsion screen film at the supply end and the upper end of the emulsion screen film at the application end are clamped at the cutting site, and the emulsion screen film at the application end is sandwiched between the emulsion screen film and the emulsion screen film at the application end. The emulsion screen film at the feeding end is clamped until the end of emulsion coating and the next time the emulsion screen film is set.

On the other hand, the emulsion screen film that has reached the lower part of the screen printing plate is pressed by the pressure application mechanism, and as it rises, it slides along the screen surface while supplying emulsion, knowing the opposite side of the contact side of the emulsion screen film. come into contact with When the emulsion screen film is brought into sliding contact, the emulsion film of the emulsion screen film is wetted with the supplied emulsion and is closely applied to the screen.

When this pressure coating mechanism coats the emulsion while rising and approaches the cutting support part of the film guide cutting mechanism, the rising start position detection mechanism detects this, and the upper end of the emulsion screen film on the pasting side is pinched at the cutting support part. Release the landing state and raise and retreat. During this period of rising and retreating, the upper end of the cut emulsion screen film on the application side is clamped, and this is held until the end of application. Raise and wait for pasting.

On the other hand, when setting the emulsion screen film next time, after setting a new screen printing plate, leave the lower end of the emulsion screen film on the supply side clamped in the film guide cutting mechanism.
Lower to cutting position. Next, the clamped state on the emulsion screen film is released, the emulsion screen film is inserted into the insertion gap, and its lower end is pulled out to the pressure coating mechanism position.
Repeat the above steps.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

<Overview of the entire emulsion coating machine and emulsion screen film> Reference numeral 1 shown in the figure is a support frame configured in a square frame shape when viewed from the front, and upper and lower plate frame clamp bars 2 are mounted between the left and right side walls of the support frame. The screen printing plate S is supported by. That is, as shown in FIG. 2, the plate frame of the screen printing plate S is clamped by the support clamp 3 of the plate frame clamp bar 2 whose height is adjusted according to the size of the screen printing plate S, and the screen printing plate S is clamped. A plate S is supported within a support frame 1 in a substantially vertical manner. When supporting vertically,
As shown in the figure, the print surface (printing surface) of the screen in the alligator screen printing plate S is placed on the front side of the support frame 1, and the alligator emulsion screen film F is attached to that print surface.

The plate frame clamp bar 2 at the upper position, which is moved up and down in accordance with the size of the screen printing plate S, has left and right clamps which move up and down along the left and right side walls of the support frame 1 to support it. It is arranged between the bar side plates 5. These left and right clamp versad plates 5 are connected and integrated by a countershaft pipe 11 installed inside them, and as shown in FIG. It is designed to be guided in the vertical direction by guide rollers 6 that roll on the edges and rack means 7.

Then, in order to affix the emulsion screen film F to the printing surface of the screen printing plate S, the roll-shaped emulsion screen film F held at the top of the support frame 1 is pulled out, brought to the bottom of the screen printing plate S, and the screen With the emulsion screen film F in contact with the emulsion screen film F, the emulsion screen film F is infiltrated with the emulsion D to closely coat it, and the emulsion screen film F to be pasted is cut at a predetermined length. At this location, the lower end of the emulsion screen film F after being supplied is clamped and supported, and is placed on standby for the next application.

Thus, the emulsion screen film F is made by removably layering an emulsion film made of an emulsion such as a photosensitive emulsion or a resin film with a predetermined film thickness that can be wetted onto a sheet-like film base material made of a synthetic resin. The thickness of the emulsion film corresponds to the thickness of the emulsion film applied to the screen of the screen printing plate S. Then, the emulsion screen film F selected according to the film thickness is made into a roll and rotatably held by a holding roll 4 on the upper part of the support frame 1, and the emulsion film is formed on the printing surface of the screen on the screen printing plate S. It is placed on the side and pulled out.

<Outline of this invented device> As shown in FIG. 1, the emulsion screen film F that has been pulled out is brought into contact with the screen surface of the screen printing plate S at the upper position of the screen printing plate S and guided to position it. A film guide cutting mechanism 10 that cuts the film to a predetermined length, and an emulsion screen film F at a lower position of the screen printing plate S.
is applied to the screen by a pressure application mechanism 60 that slides up along the screen surface while supplying the emulsion D from that position.

<Film guiding and cutting mechanism> The film guiding and cutting mechanism 10 is shown in FIGS.
As shown in the figure, the advancing/retracting means 1 are mounted on the countershaft brackets 5 arranged on the left and right sides of the support frame 1.
3, a cutting support part 25 is provided which can advance and retreat with respect to the screen printing plate S, and can freely move up and down by a vertical movement means 21. The emulsion screen film F is clamped in contact with the printing plate S, the clamped emulsion screen film F is cut, and the lower end of the emulsion screen film F on the supply side and the upper end of the emulsion screen film F on the cut-off side are clamped. It's getting old.

The film guide cutting mechanism 10 is disposed, for example, between the left and right clamp bar side plates 5 described above.

<Advancing/retracting means of the film guiding/cutting mechanism> As shown in FIGS. 3 and 5, the advancing/retracting means of the film guiding/cutting mechanism 10 includes a cutting support provided inside each of the left and right clamp bar side plates 5. The left and right gear housings 12, which support the part 25 in a vertically movable manner, are provided with advancing/retracting cylinders 13 that allow the left and right gear housings 12 to move forward and backward with respect to the screen printing plate S. Slide shaft 15 inserted into shaft block 14 fixed inside frame 5
A reciprocating cylinder 13 is slidably supported on the clamp bar side plate 5 and is also fixed inside the clamp bar side plate 5.
It is connected to the tip of the cylinder rod via a floating joint.

<Vertical movement means of film guiding and cutting mechanism> Further, as shown in FIGS. 3 and 4, the vertical movement means moves the timing rack 17, to which the cutting support part 25 is fixed at the lower end, to the gear housing 12 in the vertical direction. The timing rack 17 is supported through the timing rack 17.
A pinion 19 fixed to a countershaft 18 inserted through and supported by the left and right gear housings 12 is engaged with the timing rack 17 by the operation of an elevating cylinder 21 rotatably supported inside the clamp bar side plate 5. By letting them guide you,
The cutting support part 25 is made vertically movable.

When the cylinder rod expands and contracts due to the operation of the lifting cylinder 21, the cutting support part 25 is moved by the pinion 1 which is synchronized on the left and right sides by the countershaft 18.
It is guided by a timing rack 17 that meshes with the timing rack 9, and moves up and down smoothly while maintaining left and right balance.

As shown in FIGS. 3 and 5, the lifting cylinder 21 is connected to a support block 22, which is located at the front of the gear housing 12 and fixed to the inside of the clamp bar side plate 5, through a support pin 23. The clamp bar is supported in the vertical direction by the side plate 5 so as to be swingable (see FIG. 4). and,
A cutting support part 25 is connected to the tip of the cylinder rod of the lifting cylinder 21 via a uni-ball joint, and when the cutting support part in the lowered position moves toward the screen printing plate S surface, the lifting cylinder 21 is fixed and does not move. The cylinder 21 itself is made to swing smoothly so as to follow the movement of the cutting support part 25.

<Cutting support section of film guide cutting mechanism> As shown in FIGS. 3, 4, and 6, the cutting support section 25 includes an upper rail support bar 26 and a lower rail support bar 31, which are approximately horizontal. Fixed to the lower end of the timing rack 17, with its tip positioned beside the screen surface of the screen printing plate S, left and right upper rail support bars 26,
A cutter guide-on plate 35 is installed between the tips of the lower rail support bar 31. The cutter guide plate 36 is fixed to the cutter guide-on plate 35 by the operation of the upper clamp cylinder 27 fixed to the upper rail support bar 26.
The upper clamp rail 28 parallel to the cutter guide-on plate 35 is made to move forward and backward, and the emulsion screen film F on the supply side is clamped between it and the cutter guide-on plate 35. Furthermore, by operating the lower clamp cylinder 32 fixed to the lower rail support bar 31, the lower clamp rail 33, which is parallel to the cutter guide-on plate 35, can be moved forward and backward, and the lower clamp rail 33, which is parallel to the cutter guide-on plate 35, can move forward and backward. Attach the emulsion screen film F on the pasting side. Further, the upper clamp rail 28 is provided with a cutter 38 that is slidable along the upper clamp rail 28.

The tip of the cylinder rod of the lifting cylinder 21 is connected to either the upper or lower rail support bar 26 or 31 of the cutting support section 25, and the timing rack 17 is guided by the operation of the lifting cylinder 21. The cutting support part 25 itself is vertically movable.

Further, the upper clamp rail 28 is installed between upper rail side blocks 29 that are slidably guided by the left and right upper rail support bars 26, respectively. And upper rail side block 29
The cylinder rod end of the upper clamp cylinder 27 is fixed, and the upper clamp rail 28 is moved forward and backward via the upper rail side block 29 by the operation of the upper clamp cylinder 27.

On the other hand, the lower clamp rail 33, like the upper clamp rail 28, is installed between lower rail side blocks 34 that are slidably guided by the left and right lower rail support bars 31, respectively. The cylinder rod end of the lower clamp cylinder 32 is fixed to the lower rail side block 34, and the lower clamp rail 33 is advanced or retreated via the lower rail side block 34 by the operation of the lower clamp cylinder 32.

As shown in FIGS. 4 and 6, the cutter 38 is a cutter that can run freely on the upper clamp rail 28 by elastically clamping the lip portion of the upper clamp rail 28 formed in the shape of a lip groove. The cutter 38 is detachably fixed to the cutter holder 37 via a cutter clamp plate.
The tip is positioned at the lower edge of the cutter guide plate 35.

Therefore, the upper clamp rail 28 moves forward by the operation of the upper clamp cylinder 27 to sandwich the emulsion screen film F, and then the cutter holder 37 is moved along the cutter guide plate to remove the emulsion screen film F. can be cut.

Note that this cutter holder 37 can be moved manually or mechanically.
In some cases, the cutter guide-on plate 35 may be installed on the lower clamp rail 33.
The cutter 38 runs on the upper edge of the cutter 38.

Furthermore, on the inner surfaces of each of the upper clamp rail 28, cutter guide on plate 35, lower clamp rail 33, and cutter guide plate 36 that sandwich the emulsion screen film F, there is a protective material 39 such as rubber for protecting the emulsion screen film F. It is desirable that it be affixed.

<Outline of operation of film guiding and cutting mechanism> Film guiding and cutting mechanism 10 configured as described above
To explain the operation, when air pressure is now supplied to the lifting cylinder 21, the protruding cylinder rod hits the timing rack 1 in the gear housing 12.
7 is lowered to a predetermined position.

Next, when air pressure is supplied to the advancing/retracting cylinder 13, the protruding cylinder rod advances the gear housing 12 against the screen printing plate S, which is clamped by the operation of the upper clamp cylinder 27 at the cutting support part 25. The lower end of the emulsion screen film F on the feeding side is positioned close to the surface of the emulsion screen film F.

Thereafter, the clamping force in the upper clamp cylinder 27 is released to free the emulsion screen film F, and its free end is inserted between the cutter guide-on plate 35 and the lower clamp rail 33.
Pull it down to the predetermined lower end position of the screen printing plate S. After setting the attachment position, the upper and lower clamp cylinders 27 and 32 are operated to clamp the upper and lower parts of the cut portion of the emulsion screen film F separately.

Therefore, the cutter 38 is attached to the upper clamp rail 2.
Emulsion screen film F
cut.

After cutting, by the operation of the coating mechanism 60, which will be described later,
As the emulsion screen film F rises while being coated, the clamping force on the emulsion screen film F in the lower clamp cylinder 32 is released, but the clamping force in the upper clamp cylinder 27 remains activated. The entire cutting support part 25 is raised by the operation of the lifting cylinder 21. Then,
The upper edge of the emulsion screen film F at the application side is left on the screen printing plate S side and coated with emulsion D, and the emulsion screen film F at the supply side is coated with emulsion D.
The lower end rises and waits for the next application.

<Cutting position detection mechanism of film guide cutting mechanism> The cutting of the emulsion screen film F by the cutting support section 25 is performed at the upper end position of the emulsion screen film F to be attached to the screen printing plate S. The film guide cutting mechanism 10 is controlled downward by the cutting position detection mechanism 40 so that it operates to a preset position.

That is, this cutting position detection mechanism 40
As shown in the figure, a sensor block 42 for detecting the lower end position, which can be adjusted vertically according to the cutting position, is arranged in response to a proximity sensor 41 for stopping the lower end position attached to the cutting support part 25. It consists of

The illustrated proximity sensor 41 is fixed to the end of the lower clamp rail 33 at the cutting support 25, and the sensor block 42 is attached to the sensor rail 43 fixed vertically inside the support frame 1. It is slidably fixed to the

Therefore, in the film guide cutting mechanism 10, when the cutting support part 25 is lowered by the vertical movement means 21 and its proximity sensor 41 approaches the sensor block 42, this is detected and the operation of the vertical movement means is stopped. and stop the cutting support part 25 at a predetermined position.

<Mechanism for detecting the rising start position of the cutting support part in the film guide cutting mechanism> Furthermore, the emulsion D is applied to the emulsion screen film F by, for example, the pressure application mechanism 60 when the emulsion screen film F is at the lower position of the screen printing plate S. The cutting is performed after the film is supported by pressure, and when the pressure application mechanism 60 rises and approaches the film guide cutting mechanism 10, the rising start position detection mechanism 50 detects the cutting support portion 2 as described above.
5 is being moved up and down.

That is, the ascending press coating mechanism 60 is provided with a proximity sensor 51 for starting the upward movement, and the ascending press coating mechanism 60 is connected to the film guide cutting mechanism 1.
When approaching the cutting support part 25 at 0, the lifting cylinder 21 is activated to avoid the cutting support part 25 from rising.

Therefore, the rise start position detection mechanism 50 is configured to use a proximity sensor 51 attached to the pressure coating mechanism 60, for example.
On the other hand, upper sensor plates 52 for starting the upward movement are arranged on the film guide cutting mechanism 10 in correspondence with positions where the upward pressure application mechanism 60 is to be avoided.

The illustrated proximity sensor 51 is attached to the back surface of a carriage base 61 of a press coating mechanism 60, which will be described later, and the upper sensor plate 52 is attached to the clamp bar side plate 5 of the film guide cutting mechanism 10 for vertical movement. It is provided to allow adjustment. That is, as shown in FIG. 8, the sensor plate slide block 54, which can be freely slid on the clamp bar side plate 5 and can be adjusted and fixed with the knurled sub-knob 53, has a lower part at a position where the elevated proximity sensor 51 approaches. The parts are extended downward and screwed together so that they are in corresponding positions.

Therefore, in the press coating mechanism 60, when it rises and its proximity sensor 51 approaches the upper sensor plate 52 and comes into contact with the cutting support part 25, it detects this and operates the lifting cylinder 21. , to avoid raising the cutting support part 25.

<Rising stop mechanism of pressure coating mechanism> Further, the coating of the emulsion D onto the emulsion screen film F is performed after the emulsion screen film F is pressed and supported at the lower position of the screen printing plate S by, for example, the pressure coating mechanism 60. Further, when the pressure coating mechanism 60 rises and approaches the film guide cutting mechanism 10, the rise stop mechanism 45 stops the pressure coating mechanism 60 from rising and stops the coating operation. There is.

That is, as shown in FIG. 9, the rising stop mechanism 50 is provided with a proximity sensor 46 for stopping the rising pressure coating mechanism 60, and as shown in FIG. The mechanism 60 is constructed by disposing a sensor block 47 corresponding to the upper end position of the emulsion screen film F at the cutting edge of the screen printing plate S.

The sensor block 47 can be adjusted to be vertically movable relative to the proximity sensor 46 attached to the pressure application mechanism 60, for example, in accordance with the position at which the rising pressure application mechanism 60 is to be stopped. The illustrated sensor block 47 is the sensor rail 43 in the cutting position detection mechanism 60.
Since the cut position at the emulsion screen film F corresponds to the upper limit of coating, the sensor block 42 is positioned below the sensor block 42, and the cut position at the emulsion screen film F corresponds to the upper limit of coating. The sensor block adjust knob 48 is screwed to the sensor block adjust knob 48 inserted through the sensor rail 43, and is slidably fitted to the sensor rail 43.

<Outline of Pressure Coating Mechanism> On the other hand, as shown in FIG. 1, the pressure coating mechanism 60 presses the emulsion screen film F against the screen with the emulsion screen film F in contact with the screen surface of the screen printing plate S. Pressing part 73
and, on the opposite side thereof, an emulsion bucket part 85 for supplying emulsion D to wet the emulsion film of the emulsion screen film F through the screen mesh, and is adapted to rise and fall along the left and right side walls of the support frame 1. There is.

That is, left and right carriage bases 61 connected to each other are disposed inside the left and right side walls, respectively, so as to be moved up and down by a chain drive that is suspended within the left and right side walls of the support frame 1.
A roller 73 is provided on the front side of the emulsion screen film F, which is in contact with the emulsion screen film F, and the rear side of the carriage base 61 is the emulsion screen film F.
A bucket of 85 parts of emulsion was placed on the opposite side.

As shown in FIG. 10, the left and right carriage bases 61 are connected to each other at their front ends and rear ends via a carriage pipe 62 to ensure their integral lifting and lowering movements.

<Press section of press application mechanism> The press section fixes a substantially horizontal slide rail 63 on the front side of the carriage base 61.
The left and right slide plates 65 are arranged by slide rollers that sandwich this slide rail 63 at the top and bottom, and the tip of the cylinder rod of the forward/backward cylinder 66 fixed to the slide plate 65 is connected to the slide rail 63.
Connect to 3 ends. By supplying air pressure to the advancing/retracting cylinder 66, the cylinder rod is moved in and out, and the slide plate 65 is accordingly moved back and forth in the horizontal direction (see FIG. 10).

The left and right slide plates 65 are connected to each other by a slide plate pipe 67 so that they can move forward and backward in an integrated manner, and a roller mounting pipe 68 is installed between the slide plates 65. This roller mounting pipe 68 is
As shown in FIG. 9, the slide plate pipe 6
7 A pair of adjustment screw bases 69 at the top and bottom
The end of the roller mounting pipe 68 is screwed to a roller adjustment bolt 71 which is inserted and supported from above the adjustment screw base 69. By rotating the adjustment knob 72 of the roller adjustment bolt 71, the ends of the roller mounting pipe 68 can be moved up and down, and synchronized left and right levels can be set by fine adjustment on both sides.

A roller 73 whose circumferential surface is rubber-lined to protect the emulsion screen film F is detachably fixed to the roller attachment pipe 68. That is, as shown in FIG. 10, the roller holder 74 is approximately U-shaped in plan.
A roller 73 is rotatably supported via a roller shaft 75 between the left and right sides of the roller holder 7.
4 is in contact with the rear surface of the roller mounting pipe 68, and is fixed by a clamp fitting 76 that supports the roller mounting pipe 68 by extending it from the front surface thereof.

It is sufficient for the roller 73 to sandwich the emulsion screen film F brought into contact with the screen together with an emulsion bucket 85 to be described later, and to support the emulsion screen film F against the pressing force of the emulsion bucket 85. However, by having a rotating roller structure, there is little sliding resistance against the emulsion screen film F when it is raised, and the emulsion screen film F is not damaged. Of course, instead of the illustrated roller 73, other suitable pressing members may be used, for example, one having a bucket structure similar to the emulsion bucket 85, or one having a blade structure.

Therefore, by supplying air pressure to the reciprocating cylinder 66, the roller 73 can be brought closer to the screen printing plate S to press the emulsion screen film F against the screen, and can also be moved away from the screen printing plate S.
You can be freed from At this time, the pressing pressure of the emulsion screen film F against the screen by the roller 73 is determined by adjusting the air pressure of the advancing/retracting cylinder 66 and the amount of deflection of a spring 77 disposed at the tip of the cylinder rod of the advancing/retracting cylinder 66.

As shown in FIG. 10, the spring 77 is attached to a tension plate 78 at the end of the slide rail 63.
A cup-shaped slide adjustment bolt 79 inserted through the tension plate 78 is connected and fixed to the tip of the cylinder rod of the forward/backward cylinder 66, and supported by a lock nut 81 screwed to the slide adjustment bolt 79 so that it can move forward and backward. It is coiled and compressed between the spring guide 82 and the tension plate 78. Locknut 81
By changing the distance between the spring guide 82 and the tension plate 78 by rotating the
The amount of deflection of the spring 77 can be adjusted, thereby adjusting the pressing force of the roller 73 against the screen.

<Emulsion bucket part of the pressure coating mechanism> Furthermore, as shown in FIG. It is tilted so that the emulsion D housed inside with the edges in contact flows down from the front edge.
As the carriage base 61 rises, the emulsion D that passes through the screen infiltrates the emulsion film of the emulsion screen film F and is applied to the screen.

Therefore, a nearly horizontal slide rail 86 is fixed to the rear surface of the carriage base 61.
The left and right slide plates 88 are arranged by slide rollers 87 that sandwich the slide rail 86 between the upper and lower sides, and the cylinder rod tip of a reciprocating cylinder 89 fixed to the slide plate 88 is linked to the end of the slide rail 86. Left and right slide plates 88
They are connected to each other by a slide plate pipe 91, and move forward and backward in an integrated manner. In addition, a bucket pipe 63 is constructed and fixed between the left and right bucket pipe arms 92 which are pivotally supported on the inner surfaces of the left and right slide plates 88, respectively.
3, the tip of the cylinder rod of an inclined cylinder 95, which is pivotally supported via a cylinder trunnion plate 94 fixed to the side surface of the slide plate pipe 91, is coupled via a joint arm 96. Further, the emulsion bucket 85, whose front edge slides into contact with the screen surface of the screen printing plate S, is detachably attached to the bucket pipe arm 92. Now, when air pressure is supplied to the advancing/retracting cylinder 89, the cylinder rod protrudes and the slide plate 88 moves forward toward the screen printing plate S. After that, when air pressure is supplied to the inclined cylinder 95, The protrusion of the cylinder rod causes the bucket pipe arm 92 to rise and swing, and as a result, the front edge of the emulsion bucket 85 comes into contact with the screen surface, and the emulsion bucket 85 itself is tilted, causing the emulsion D stored inside to flow out onto the screen. Ru.

At this time, a spring 97 similar to the spring 77 described above is interposed between the cylinder rod of the advancing/retracting cylinder 89 and the end of the slide rail 86, and by changing the amount of deflection of this spring 97, the emulsion It is possible to adjust the pressing pressure of the bucket 85 against the screen.

<An example of the use of this invented device> Next, an example of the use of this device will be explained. First, the emulsion screen film F wound into a roll is held on the holding roll 4 on the upper part of the support frame 1, and the support clamp 3 of the plate frame clamp bar 2 in the support frame 1 1
The printed surface is positioned on the front side of the printer, and the printer is supported and fixed almost vertically (see FIGS. 1 and 2).

On the other hand, in the film guide cutting mechanism 10 at a position above the screen printing plate S, the cutting support part 25 is vertically adjusted by the vertical movement means 21 to
It stops at a height position corresponding to the length of the emulsion screen film F to be applied to the surface. In addition, advance/retreat means 1
3, the cutter guide plate 35 is brought into contact with the screen printing plate S, and then the upper clamp rail 2 is
8. Connect the lower clamp rail 33 to the cutter guide plate 36 and cutter guide on plate 3, respectively.
5, and an insertion gap for the emulsion screen film F is set between them (see FIG. 6). In addition, in the pressure application mechanism 60 at the lower position of the screen printing plate S, the roller 73 on the printing surface of the screen printing plate S and the emulsion bucket 85 on the opposite side are separated from the screen printing plate S, respectively. A predetermined amount of emulsion D is stored in the emulsion bucket 85 (see FIG. 10).

Next, the emulsion screen film F is pulled out into the insertion gap of the emulsion screen film F while bringing the emulsion film surface of the emulsion screen film F into contact with the print surface of the screen printing plate S, until it reaches the pressure coating mechanism 60 position. let Then, when air pressure is supplied to the upper and lower clamp cylinders 27 and 32 at the cutting support part 25 whose height is adjusted at a predetermined cutting length position, the upper and lower clamp rails 2
8 and 33 move forward, and the cutter guide plate 3
6. Sandwich the emulsion screen film F between the cutter guide-on plate 35. When the cutter 38 is guided by the cutter guide plate 36 and runs along the upper clamp rail 28, the emulsion screen film F can be cut (see FIG. 4). After cutting, lower clamp cylinder 32
Although the clamping force on the emulsion screen film F at is released, the clamping force at the upper clamp cylinder 27 remains activated.

After that, the advance/retreat cylinder 6 of the pressure application mechanism 60
When air pressure is supplied to 6 and 89, the roller 73
moves forward to press the emulsion screen film F against the screen surface, and the emulsion bucket 85 on the opposite side also moves forward and pinches the emulsion screen film F together with the roller 83. Furthermore, the inclined cylinder 8
When air pressure is supplied to the emulsion bucket 85, the emulsion bucket 85 is moved by swinging the bucket pipe arm 82 and the bucket pipe 83 that erect and support the emulsion bucket 85.
The screen is tilted to allow the emulsion D inside to flow down (see Figure 10). In this state, when the left and right carriage bases 61 are driven upward, while pressing the emulsion screen film F against the screen, the emulsion D is supplied to the emulsion film through the screen on the opposite side to infiltrate the emulsion film. This makes it stick to the screen.

The pressure application mechanism 60 is the film guide cutting mechanism 10
When the position is reached, the proximity sensor 51 approaches the upper sensor plate 52 and operates the rise start position detection mechanism 50, which operates the vertical movement means 21 to avoid the cutting support part 25 from rising. Then, the upper end of the emulsion screen film F at the application side is left on the screen printing plate S surface and coated with emulsion D, and the lower end of the emulsion screen film F at the supply side rises for the next application. ,stand by.

The pressure coating mechanism 60, which moves upward while coating the emulsion screen film F, stops rising when the sensor block 47 is detected by its proximity sensor 46, and the close contact of the emulsion film to the screen is completed.

After that, in the pressure application mechanism 60, air pressure in the opposite direction is applied to the inclined cylinder 95 and the forward/backward cylinder 89.
The emulsion bucket 85 is horizontally retracted, and air pressure in the opposite direction is also applied to the reciprocating cylinder 66.
is supplied, the roller 73 retreats, and the press coating mechanism 60 descends and returns to its original position and stops, preparing for the next operation.

Then, when the coating is completed and the emulsion film of the emulsion screen film F is applied to the screen, the film base material of the emulsion screen film F is peeled off.

On the other hand, when setting the emulsion screen film F the next time, after setting a new screen printing plate S, the cutting support section 25 of the film guide cutting mechanism 10 uses the upper clamp cylinder 27 to remove the emulsion screen film that is being supplied. While holding the lower end of F, lower it to the cutting position. Next, the clamping state of the upper and lower clamp cylinders 27 and 32 is released, the emulsion screen film F is inserted into the insertion interval, and its lower end is pulled out to the pressure coating mechanism 60 position, and the above-mentioned operation is repeated.

Note that these operations can also be performed by automatic control, such as pressure by the pressure coating mechanism 60,
Cutting of the emulsion screen film F after coating, lowering of the cutting support section 25 after the pressure coating mechanism 60 returns to the lower position after coating, and pressure coating mechanism 6
Conditions such as multiple application by 0 and other operation order and number of operations can be set arbitrarily.

[Effects of the invention] This invention is configured as described above, and therefore, it is possible to attach the roll-shaped emulsion screen film F, and unlike the conventional method, the lower end of the emulsion screen film F is attached to the supply side after cutting. Since the emulsion screen film F remains sandwiched, it is extremely easy to set the emulsion screen film F again next time. At the same time, there is no need to cut the emulsion screen film F to a predetermined size before pasting, and all work can be done by simply setting the pulled out emulsion screen film F in contact with the screen printing plate S.
It can improve work efficiency. That is, the vertically supported screen printing plate S can be set at a predetermined position on the screen surface, brought into close contact with the screen, and cut to the required length easily and quickly.

In particular, the film guiding and cutting mechanism 10 cuts the drawn-out emulsion screen film F into the screen printing plate S.
The lower end of the emulsion screen film F on the supply side and the upper end of the emulsion screen film F on the pasting side after cutting are made to contact and guide the screen surface from the top of the screen printing plate S, and cut to a predetermined length. Since the emulsion screen film F is removably clamped, it is possible for the emulsion screen film F to come into contact with the screen printing plate S smoothly, making it easy to cut the emulsion screen film F to the required length and cutting it again next time. Easy to set up.

At this time, the rising start position detection mechanism 50 is configured to raise and retreat the cutting support section 25 of the press coating mechanism 60 before the coating operation is completed when it rises and approaches the film guide cutting mechanism 10. The lower end of the emulsion screen film F on the supply side, which has been cut in advance before the coating operation, is raised and placed on standby for the next application, thereby making it easier to set it again the next time.

Not only that, but the upper end of the emulsion screen film F, which has been cut in advance before the application operation, is pinched and held until the end of the application process, so the pre-cutting makes it easier to apply the film. Gawa's emulsion screen film F is screen printing plate S
The attachment is ensured without the risk of it coming off.

Furthermore, since the emulsion screen film F that is fed and fed for pasting is cut into a predetermined length in the cutting support section 25 of the film guide and cutting mechanism 10 before the application operation, it is possible to There is also the secondary effect that the emulsion D can be supplied and infiltrated into the film, and the emulsion screen film F can be used without waste.

The pressure application mechanism 60 presses the emulsion screen film F against the screen at the lower position of the screen printing plate, and slides upward along the screen surface while supplying emulsion, knowing the opposite side of the contact side of the emulsion screen film F. The film thickness can be adjusted by adjusting the pressing pressure and the number of times of application, and has excellent effects such as facilitating accurate setting of a predetermined film thickness.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a longitudinal side view, Fig. 2 is a front view of the entire emulsion coating machine incorporating the film pasting device of this invention, and Fig. 3 is a side view of the film guiding and cutting mechanism. Fig. 4 is a front view of the main part, Fig. 5 is a plan view of the main part, Fig. 6 is a side sectional view of the main part in a state in which the emulsion screen film is clamped at the cutting support, and Fig. 7 is a cutaway. 8 is a partially omitted side view showing the upper sensor plate in the rising start position detection mechanism; FIG. 9 is a front view of the main part of the pressing part in the pressure application mechanism; FIG. 10 is a plan view of the main part of the support part; FIG. 2 is a side view showing the operation of the pressure application mechanism. D... Emulsion, S... Screen printing plate, F... Emulsion screen film, 1... Support frame, 2
...Print frame clamp bar, 3...Support clamp, 4
...Holding roll, 5...Clamp bar side plate, 6...Guide roller, 7...Rack means, 10...Film guide cutting mechanism, 11...Countershaft pipe, 12...Gear housing, 13...Advancing/retracting Cylinder, 14...Shaft block, 15...Slide shaft, 17...Timing rack, 18...Countershaft,
19... Pinion, 21... Lifting cylinder, 22
...Support block, 23...Support pin, 25...
Cutting support part, 26... Upper rail support bar,
27... Upper clamp cylinder, 28... Upper clamp rail, 29... Upper rail side block, 31... Lower rail support bar, 32...
Lower clamp cylinder, 33...Lower clamp rail, 34...Lower rail side block, 35
... cutter guide on plate, 36 ... cutter guide plate, 37 ... cutter holder, 38 ... cutter, 39 ... protection material, 40 ...
... Cutting position detection mechanism, 41 ... Proximity sensor, 4
2...Sensor block, 43...Sensor rail, 45...Rise stop mechanism, 46...Proximity sensor, 47...Sensor block, 48...Center block adjustment knob, 50...Rise start position detection mechanism, 51 ... Proximity sensor, 52 ... Upper sensor plate, 53 ... Knurled sub knob, 54 ... Sensor plate slide block, 60 ... Pressure application mechanism, 61 ... Carriage base, 62 ... Carriage pipe, 63 ... Slide rail , 64...slide roller, 65...
Slide plate, 66... Advance/retreat cylinder, 67
...Slide plate pipe, 68...Roller mounting pipe, 69 Adjustment screw base, 71...
... Roller adjustment bolt, 72 ... Adjustment knob, 73 ... Roller, 74 ... Roller holder, 75 ... Roller shaft, 76 ... Clamp fitting, 77 ... Spring, 78 ... Tension plate, 79 ... Slide Adjustment bolt, 81... Lock nut, 82... Spring guide, 85... Emulsion bucket, 86... Slide rail, 87... Slide roller, 88... Slide plate, 89... Advance/retreat cylinder, 91...
...Slide plate pipe, 92...Bucket pipe arm, 93...Bucket type, 94...
Cylinder trunnion plate, 95... Inclined cylinder, 96... Joint arm, 97... Spring.

Claims (1)

[Claims for Utility Model Registration] 1. A support frame that supports a screen printing plate in a substantially vertical manner and holds a rolled emulsion screen film above the screen printing plate, and a supporting frame that supports the screen printing plate in a substantially vertical manner and holds the rolled emulsion screen film above the screen printing plate. The screen surface is brought into contact with and guided from the top of the screen printing plate, cut to a predetermined length, and after cutting, the lower end of the emulsion screen film on the feeding side and the upper end of the emulsion screen film on the pasting side are each removably clamped. The emulsion screen film is pressed against the screen at the lower position of the screen printing plate, and the emulsion is fed along the screen surface while the opposite side of the contact side of the emulsion screen film is known. The present invention is characterized by comprising a pressure coating mechanism that slides upward and a rising start position detection mechanism that raises and retreats the cutting support portion of the film guide cutting mechanism when the pressure coating mechanism rises and approaches the film guide cutting mechanism. An emulsion screen film pasting device for screen printing. 2 The film guide cutting mechanism is mounted on the countershaft brackets placed on the left and right sides of the support frame.
A cutting support section is provided which can advance and retreat with respect to the screen printing plate by an advancing and retracting means, and can freely move up and down by an up-and-down movement means. Request for registration of a utility model in which the emulsion screen film is clamped in the attached state, the clamped emulsion screen film is cut, and the lower end of the emulsion screen film on the feeding side and the upper end of the cut emulsion screen film on the pasting side are clamped. The emulsion screen film pasting device for screen printing according to item 1. 3. The advancing/retracting means of the film guide/cutting mechanism are located inside the left and right clamp bar side plates, respectively.
Utility model registered as claimed in claim 1 or 2, comprising a reciprocating cylinder that allows the left and right gear housings that support the cutting support part in a vertically movable manner to be movable back and forth with respect to the screen printing plate. Emulsion screen film pasting device for screen printing. 4. The vertical movement means of the film guide cutting mechanism includes a timing rack having a cutting support portion fixed to the lower end thereof, which is inserted and supported in the vertical direction into the gear housing.
The timing rack engages a pinion fixed to a countershaft that is supported through the left and right gear housings, and the timing rack is achieved by the operation of an elevating cylinder that is swingably supported inside the clamp bar side plate. An emulsion screen film pasting device for screen printing according to any one of claims 1 to 3, wherein the cutting support part is made vertically movable by being guided. 5. The cutting support part of the film guide cutting mechanism fixes the upper rail support bar and the lower rail support bar, which are almost horizontal, to the lower end of the timing rack, and positions the tips of the bars on the side of the screen surface of the screen printing plate. A cutter guide-on plate is installed between the tips of the upper rail support bar and the lower rail support bar, and the upper clamp rail becomes parallel to the cutter guide-on plate by the operation of the upper clamp cylinder fixed to the upper rail support bar. In addition, by operating the lower clamp cylinder fixed to the lower rail support bar, the lower clamp rail parallel to the cutter guide on plate can be moved forward and backward, allowing the upper and lower rail support bars to move forward and backward. The emulsion screen film is sandwiched between the cutter guide-on plate and the cutter guide-on plate, and either of the upper or lower clamp rails is equipped with a cutter guide plate that can run freely along the cutter guide plate fixed to the cutter guide-on plate. An emulsion screen film pasting device for screen printing according to any one of claims 1 to 4, wherein a cutter is slidably arranged. 6. The pressure application mechanism includes a pressing part that presses the emulsion screen film against the screen by the side of the emulsion screen film that is in contact with the screen surface of the screen printing plate, and a pressing part that presses the emulsion screen film against the screen, and a pressing part that presses the emulsion film of the emulsion screen film through the screen mesh. The screen printing device according to any one of claims 1 to 5, which is provided with an emulsion bucket part for supplying the emulsion for wetting, and is adapted to move up and down along the left and right side walls of the support frame. Emulsion screen film pasting device. 7 The pressing part of the press coating mechanism is placed on the side where the emulsion screen film comes into contact with the screen on the carriage base that moves up and down along the left and right side walls of the support frame. 7. The emulsion screen film pasting device for screen printing according to claim 6, which has a roller structure removably attached to a roller attachment pipe installed between slide plates. 8 The emulsion bucket part of the pressure coating mechanism is arranged on the side opposite to the side where the emulsion screen film comes into contact with the screen in the carriage base that moves up and down along the left and right side walls of the support frame, and is arranged in the horizontal direction of the carriage base. The emulsion screen film for screen printing according to claim 6 or 7, which is removably attached to a bucket pipe installed between bucket pipe arms on left and right sliding plates that move forward and backward at the same time. Pasting device. 9 The slide plates in the pressing part and emulsion bucket part of the pressure coating mechanism are arranged by slide rollers that sandwich the slide rail fixed to the carriage base at the top and bottom, and the slide plates are arranged on the left and right by slide rollers that sandwich the slide rail fixed to the carriage base at the top and bottom. Connect the cylinder rod tip to the slide rail end,
An emulsion screen film sticking device for screen printing according to claim 7 or 8, which is moved forward and backward by air operation. 10. The emulsion screen film pasting device for screen printing according to claim 9, wherein a spring whose deflection amount can be changed is interposed between the cylinder rod end of the advance/retreat cylinder and the slide rail end.