JPH045380B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an emulsion coating device for a screen printing plate. By using an emulsion film formed by layering emulsion coatings to a predetermined thickness, the entire coated surface can be coated with a uniform coating thickness. The present invention relates to an emulsion coating device for a screen printing plate, which makes it possible to obtain a screen printing plate on which sharp lines are formed.

(Prior art) Conventionally, in order to apply an emulsion to a flat screen printing plate for this type of screen printing, silk, polyester, nylon fiber, stainless steel wire, etc. having a predetermined mesh were woven into a mesh. The screen printing plate consists of a frame surrounding the screen material.
This is done by sliding the front edge of a bucket-shaped squeegee from below to above. At that time, if the squeegee was moved manually, skill was required and it was extremely difficult to achieve a uniform coating thickness. In order to solve this problem, various devices have been proposed that move the squeegee mechanically.

Firstly, there is a printing screen coating method and apparatus disclosed in Japanese Patent Publication No. 58-53332.
When coating from both sides of the screen printing plate, the squeegee placed on both sides of the screen printing plate is advanced until it comes into contact with the surface of the screen material, and the squeegee is tilted. The screen printing plate or squeegee is raised and lowered at different heights so that the emulsion flows out from the leading edge of the squeegee.

Second, when coating with an applicator with a squeegee with the screen surface in an almost upright position, the frame of the screen formwork is pressed down in synchronization with the slight movement of the applicator, ensuring even contact between the squeegee and the screen surface. JP-A-59-139035 discloses a method for forming a uniform photosensitive coating film by maintaining the same.

Thirdly, the squeegees placed on both sides of the screen printing plate can be moved forward, backward, and tilted independently, and the vertical position of the screen printing plate can be reversed during the coating process to ensure a uniform coating layer of emulsion. A method for forming the same is described in Japanese Patent Application Laid-Open No. 171958/1983.

Fourthly, Japanese Patent Laid-Open No. 57-120938 discloses a device in which photosensitive liquid is automatically applied by controlling each reciprocating device when applying with an applicator with a squeegee with the screen surface in an almost upright position. It is stated in the official gazette.

(Problems to be Solved by the Invention) According to the first method, since the emulsion is allowed to flow down from the leading edge of the squeegee, when the squeegee is raised, half of the emulsion is scraped off by the leading edge of the squeegee. Even if it is possible to form a thick coating, this will not happen if the squeegee is lowered (this is done when a particularly thick coating is required), and the coating will flow to the bottom of the squeegee and the amount of coating will not be constant, resulting in a thin coating. The thickness was extremely non-uniform. In addition, in this regard, even if coating is applied from below from both sides at the same time, if the distance between the screen printing plate and the leading edge of the squeegee is not widened, even if the coating is repeated while they are in contact, the emulsion will eventually deteriorate. It was not possible to increase the thickness of the coating film, and in particular, even if a thickness was required only on the printed surface, this could not be achieved. Furthermore, the squeegees placed on both sides of the screen printing plate are moved forward and backward symmetrically and synchronously by a single cylinder, so it is possible to coat only one side, even if both sides are coated at the same time. In this case, a bar or roller is used instead of the second squeegee, which is cumbersome to replace, and it is extremely difficult to continuously automate the transition from coating on both sides to coating on one side, and vice versa. It was hot. On the other hand, when printing using a screen printing plate, it is necessary to apply the emulsion so that the ink is thinner on the ink-coated surface and thicker on the printed surface in order to produce beautiful prints. However, it has been difficult to meet this requirement with the above-mentioned conventional apparatus due to the troublesome work described above.

In addition, although the second to fourth devices use different emulsion coating means, they apply the emulsion to the screen printing plate afterward, so they are similar to the first device described above.
Similar to the above, it was not possible to make the coating film of the emulsion thicker, and in particular, even if thickness was required only on the printed surface, it was impossible to cope with this problem.

In addition, an emulsion film is prepared, in which a layered coating of emulsion of a predetermined thickness is releasably layered on the surface of the film base material, and this is placed under the surface of the screen material against the screen printing plate to level it. After the screen is set in the desired shape, a suitable squeegee is used to manually apply the paint film to the surface of the screen in order to infiltrate it with water or other infiltrating materials. . However, according to this method, when moving the squeegee manually, it is difficult to evenly infiltrate the paint film with the infiltrating material over the entire coating surface, resulting in extremely uneven coating, and the paint does not adhere properly at the end of the work. Since some parts may remain, it required skill to carry out the work to prevent this from occurring.

The present invention was created in view of the drawbacks of the conventional methods and apparatuses, and uses an emulsion film in which a coating film of a predetermined thickness of emulsion is releasably layered on the surface of the film base material. The coating pressure and moving speed of the coating supply member that supplies the infiltrating material to the coating film can be set arbitrarily by selecting the infiltrating material, etc., and the thickness can be set uniformly over the entire coating surface when printing. The purpose is to form sharp lines.

(Means for solving the problem) In order to achieve the above-mentioned object, in the present invention, left and right side walls 12 facing each other on the left and right sides of the base 11,
A base 10 comprising a machine frame and a clamp 2 that presses and fixes a flat screen printing plate S to a support plate 22 that is erected and fixed to the base 10.
6, a coating elevating mechanism 40 that raises and lowers the coating supply member 35 holding the infiltration material D to the coating film 3 along the screen material M on the front side of the screen printing plate S, and a coating supply member When the coating supply member 35 is raised, the coating supply member 35 is advanced against the surface of the screen material M, and its front edge is brought into contact with and tilted, and when the coating supply member 35 is lowered, the coating supply member 35 is returned horizontally and retreated. It has a coating operation mechanism 50 disposed on the front side of the screen printing plate S so as to separate it from the surface of the screen material M, and a control mechanism 70 that controls the elevation, advancement, inclination, horizontal return, and retreat of the coating supply member 35. In an emulsion coating apparatus for a screen printing plate, an emulsion film 1 is formed by removably layering a wettable emulsion coating 3 of a predetermined thickness on two sides of a film base material, and the emulsion film 1 is coated on a base 10. A mat 23 made of elastic material is attached to the front surface of the support plate 22 to which the standing legs are fixed, and the coating film 3 is applied.
The present invention consists in closely supporting the emulsion film 1 with its edges on the front side on the front surface of the mat 23, thereby successfully solving various drawbacks recognized in the prior art.

(Function) According to the present invention, a mat 23 made of an elastic material is attached to the front surface of the support plate 22, and the emulsion film 1 is further fixed to the front surface of the mat 23 made of an elastic material. At this time, since the mat 23 itself is formed of rubber or a rubber-like elastic material in the form of a sheet with a predetermined thickness, when the emulsion film 1 is brought into close contact with the front surface of the mat 23, it is susceptible to static electricity. Thus, it is supported in a predetermined position.

Further, when the coating supply member 35 supplies the infiltrating material D to the front surface of the screen material M in order to coat the coating film 3 of the emulsion film 1 on the surface of the screen material M, the coating supply member 35 It rises while pressing with a predetermined pressing force. At this time,
The elastic action of the mat 23 itself provides appropriate tension to the screen material M.

(Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 shown in the figure is an emulsion film, and this emulsion film 1 is made of an emulsion such as a photosensitive emulsion of a predetermined thickness that can be infiltrated into one side of a sheet-like film base material 2 made of synthetic resin, or a resin film. The thickness of the coating film 3 is determined by the thickness of the screen material M, which is made of silk, polyester, nylon fiber, stainless steel wire, etc., woven in a mesh shape and having a predetermined mesh. This corresponds to the thickness of the emulsion film to be applied to the flat screen printing plate S formed by the frame P surrounding the plate. However, it should be selected appropriately taking into consideration that it will be coated within the mesh of the screen material M. For example, 15, 20, 25, 30μ
etc.

This emulsion film 1 is such that three coated surfaces thereof are held in contact with the printing surface (print surface) of a screen printing plate S which is appropriately supported in the form of a standing leg. In this state, the infiltrating material D held on the screen printing plate S is applied by the coating supply member 35 in the form of a bucket or a band made of elastic material that rises along the side of the ink application surface (squeegee surface). The coating film 3 is closely applied to the surface of the screen material M by the infiltration action of the infiltrating material D on the coating film 3.

At this time, it is sufficient that the infiltrating material D held by the coating supply member 35 is infiltrated to dissolve the coating film 3 and brought into close contact with the surface of the screen material M in that state, such as water, photosensitive emulsion, etc. Emulsions are planned, and water or liquid emulsions alone or a mixture of both are used.

Therefore, the present invention includes a base 10 that is installed at an appropriate location, a support mechanism 20 that supports the emulsion film 1 and the screen printing plate S in a erected form in close contact with each other, and a coating supply member on the front side of the screen printing plate S. It is made up of a coating elevating mechanism 40 that applies and supplies the infiltrating material D by raising and lowering the coating member 35, and a control mechanism 70 that controls the coating and supply by the coating supply member 35.

Therefore, the base 10, as shown in FIG.
Left and right side walls 1 facing each other on the left and right sides of the base 11 which is horizontally adjusted and installed by an adjuster 15
2 and 13 are erected, and an upper wall 14 is constructed between the left and right side walls 12 and 13. As shown in the figure, operation panels 72 and 73 are installed on the front side of the left side wall 12 to preset each control by the control mechanism 70 as described later, and inside the lower part is a lifting motor 41 that is the drive source of the coating lifting mechanism 40. It is stored.

In the working space between the left and right side walls 12 and 13 of the base 10, the emulsion film 1 and the screen printing plate S are set, and the infiltration material D is applied to apply the coating film 3 to the screen material M. A support mechanism 20, a coating elevating mechanism 40, and a coating operation mechanism 50 are respectively incorporated in the application process.

As shown in FIGS. 1 and 2, the support mechanism 20 is supported between fixing bars 21 installed horizontally between the upper and lower parts of the left and right side walls 12 and 13, so that the support mechanism 20 can be mounted vertically or vertically on the base 10. Depending on the case, the emulsion film 1 is closely supported on a support plate 22 which is tilted and fixed to a standing position, with the coated film 3 side facing forward, and a clamp is used to press and fix the screen printing plate S on the front surface of the emulsion film 1. 26. In order to press and fix the screen printing plate S to the support plate 22, the lower fixing bar 21 is provided with the support plate 2.
A clamp die 24 whose rear surface is inclined so that the width gradually becomes narrower as it goes downward between the front surface of the support plate 22 and the front surface of the support plate 22 is fixed to the clamp die 24, and the left and right side walls 12, A pneumatic cylinder-operated clamp 26 is attached to the clamp fixing bar 25 installed between the clamp fixing bars 25 and the front surface of the support plate 22, and has a grip whose rear surface is inclined so that the width gradually becomes narrower as it goes upwards. Glue it. By doing so, when the screen printing plate S is inserted and set between the clamp die 24 and the support plate 22 and the clamp 26 is operated, the inclined surfaces of the clamp die 24 and the clamp 26 support the screen printing plate S. To support a screen material M of a screen printing plate S in close contact with an emulsion film 1 brought in close contact with a support disc 22 by pressing uniformly toward a disc 22, and to achieve reliable setting despite having a simple configuration. is possible.

In addition, on the front surface of the support plate 22, there is a mat 2 made of elastic material.
3 is attached. The mat 23 itself is formed of rubber or a rubber-like elastic material in the form of a sheet with a predetermined thickness. The emulsion film 1 is supported and fixed on the front surface of the mat 23.
At this time, the means for supporting and fixing the emulsion film 1 is closely supported by electrostatic action.

Further, in order to apply the coating film 3 of the emulsion film 1 to the surface of the screen material M, the infiltrating material D is supplied to the front surface of the screen material M by a coating supply member 35. At this time, the coating supply member 35
It rises while pressing with a predetermined pressing force.

FIG. 6 shows another embodiment in which a film supply mechanism 30 is attached, in which the emulsion film 1 to be cut to a required length is wound and housed. This film supply mechanism 30 has a roll-shaped emulsion film 1 which is wound and stored on a supply roller 31 installed between the upper parts of the left and right side walls 12 and 13, and is set in a replaceable manner.
By doing so, the emulsion film 1 can be continuously fed and set, and can be used in any length, thereby improving work efficiency.

In this way, while the emulsion film 1 and the screen printing plate S brought into close contact with the emulsion film 1 are held, the coating lifting mechanism 40 and the coating operation mechanism 50 move the printing surface of the screen printing plate S during printing. (print surface) is known, and the infiltrating material D is applied and supplied as described above.

The coating lifting mechanism 40 raises and lowers the coating supply member 35 disposed on the front side of the screen printing plate S along the surface of the screen material M. Specifically, the coating lifting mechanism 40 includes a support to which the coating supply member 35 is detachably attached. A bar 55 is installed between the units 45 arranged opposite to each other on the left and right inside the left and right side walls 12 and 13, and connects the unit 45 to the chain 44 that is driven and circulated within the left and right side walls 12 and 13, respectively. 1
It is designed to be raised and lowered via guide rollers 47 along guides 42 provided upright within 2 and 13. That is, a sprocket wheel 43 is pivotally supported above and below guides 42 erected within the left and right side walls 12 and 13, and the elevating motor 41 housed in the lower part of the left side wall 12 is rotated around the sprocket wheel 43. By driving and circulating the chain 44, the unit 45 is raised and lowered. The range of elevation of the unit 45 at this time only needs to be within the vertical interval of the screen printing plate S supported and set on the support mechanism 20. An upper/lower limit switch 48 is provided whose installation position can be adjusted to reverse the drive of the lifting motor 41 when the unit 45 comes into contact with it. Unit 45 and Chain 4
As shown in FIG. 4, the unit 45 is connected to a chain 44 that is looped around the back side of the guide 42 by being fixed to the unit 45 by a connecting part 46 that protrudes from the back side of the unit 45. A guide roller 47 that is in contact with the front and rear edges of the guide 42 is pivotally supported on the linking portion 46, and as the guide roller 47 rolls along the guide 42, the unit 45 is rotated as the chain 44 is driven. This ensures smooth lifting and lowering, thereby ensuring constant pressure and constant spacing from the coating supply member 35 to the surface of the screen material M. Note that it is preferable to interpose a cushioning material between the guide 42 and the guide roller 47 to absorb shock and vibration.

On the other hand, the coating operation mechanism 50 includes the coating supply member 35
When rising, the coating supply member 35 is applied to the screen material M surface.
When the coating supply member 35 is lowered, the coating supply member 3
5 is returned horizontally and moved backward to separate it from the surface of the screen material M.

The specific configuration of the coating operation mechanism 50 is as follows:
The left and right units 45 are raised and lowered along lines 2 and 13.
A tilting arm 52 is swingably supported on each of the front parts,
The support bar 55 is installed between the inclined arms 52 that face each other on the left and right so that it is slidably guided back and forth by a slide shaft 54 attached to the inclined arm 52. A piston 58 of a forward/backward moving cylinder 57 fixed to the arm 52 is attached to the unit 4 on the inclined arm 52.
A piston 61 of a tilting cylinder 60 pivotally supported at 5
It is made by connecting each.

As shown in the figure, when the coating and supplying member 35 attached to the support bar 55 coats and supplies the infiltration material D, it advances against the surface of the screen material M, and after its front edge comes into contact with it, it is tilted. Since the infiltrating material D held by this is caused to flow out and infiltrate the coating film 3 of the emulsion film 1 through the mesh of the screen material M, when the coating supply member 35 itself is tilted, its leading edge is It is desirable to be the center. That is, in order to move the coating supply member 35 forward and backward in the horizontal direction so that the advance toward the screen material M can be carried out quickly and smoothly, the support bar 55 is installed between the inclined arms 52 and also extends from the inclined arm 52 itself. The front edge position after the front and rear ends is approximately on the same line as the pivot position of the left and right tilting arms 52 so that the movement causes the coating supply member 35 to tilt, that is, tilt backward. Therefore, the arrangement is such that the coating supply member 35 is operated centering on the screen material M of the screen printing plate S supported by the support mechanism 20, and the pivoting position of the inclined arm 52 is located on the extension of the surface of the screen material M. unit 4
This is the pivot pin 51 portion in No. 5.

As shown in FIGS. 3 and 4, the inclined arm 5
2 has a pair of supports 5 facing each other before and after it.
3 are protruded, and a slide shaft 54 is constructed between these supports 53, and the front part of a reciprocating cylinder 57, which is located in front of the lower part of the front support 53 and arranged in a horizontal direction, is fixed to the front part of the piston 58. extends parallel to the slide shaft 54, and its tip is connected to a joint 59 projecting below the support bar 55. Further, the tilting cylinder 60 is arranged in a substantially vertical direction below the tilting arm 52, and the rear part of the cylinder is connected to the unit 45.
The tip of the piston 61 is connected to the inclined arm 52 while being pivoted to the board surface. Furthermore, the support bar 5
5 is fitted to the slide shaft 54 via ball bushings 56 formed at both ends thereof, so that the units 4 on the left and right sides of the base 10 are connected to each other.
The inclined arms 52 are installed between the respective inclined arms 52 which are pivotally supported by the slanted arms 52. By adopting the ball bushing part 56 in this way, the slide shaft 5
4, the support bar 55 moves back and forth with low friction, making its operation extremely smooth, and at the same time preventing the long support bar 55 from wobbling or the like, ensuring stable operation.

Here, to explain the operation of such a coating operation mechanism 50, the unit 45
When the coating supply member 35 itself is to be raised, before that, the advance/retreat cylinder 57 is operated to advance the support bar 55 according to the slide shaft 54, so that only the front edge of the coating supply member 35 comes into contact with the screen material M surface (second
(see Figure, Figure 3). Then, in order to apply the infiltrating material D, the tilting cylinder 60 is operated to tilt the tilting arm 52 around its pivot position, thereby tilting the coating supply member 35.
The infiltrated material D is allowed to flow out onto the screen material M. Furthermore, when the unit 45 itself is lowered, the tilting cylinder 60 is operated to return the tilting arm 52 and the coating supply member 35 to the horizontal position, and then the advancing/retracting cylinder 57 is operated. The support bar 55 and coating supply member 35 are moved back.

There is also a control mechanism 70 that controls the lifting and lowering of the coating supply member 35 by the coating lifting mechanism 40, and the forward movement, tilting, horizontal return, and retreat of the coating supply member 35 by the coating operation mechanism 50, and includes an electrical system, a hydraulic system, and a hydraulic/pneumatic system. It is composed of a series of circuits. In FIG. 5, a total of two advancing/retracting cylinders 57 on the left and right in the coating operation mechanism 50 and a total of two tilting cylinders 60 on the left and right that tilt backward on the front side of the screen printing plate S are shown.
The clamp 2 in the support mechanism 20 shall be designed to supply, exhaust, and shut off the working air pressure to each.
An operating system path for supplying, exhausting, and shutting off operating air pressure to 6 is also formed.

In the figure, 74 is a pressure reducing unit, 75 is a switching valve, 76 is a muffler, 77 is a pressure reducing valve, and 78 is a speed controller, and these controls are provided on the front of the left side wall 12, as shown in FIG. This is done by operating various buttons and dials on the electric section operation panel 72 and the pneumatic operation panel 73, and enables automatic operation with various combinations of settings for the number of times of coating and supply, as required.

The present invention is constructed as described above, and its use will now be explained with reference to FIGS. 1 to 4. First, an emulsion film 1 corresponding to the size of the screen printing plate S is prepared, and it is closely supported on the front surface of the support plate 22 with the coated film 3 side facing forward. With the glue in close contact with the coating film 3, it is supported and fixed in the form of a standing leg with a clamp 26. On the other hand, the coating supply member 35 attached to the support bar 55 holds the infiltrating material D, and is turned on by operating various buttons on the operation panel 72 and the start switch 71. Then, the advancing/retracting cylinder 57 in the coating operation mechanism 50 operates to advance the support bar 55 and the coating supply member 35 against the surface of the screen material M so that their front edges come into contact with each other.
Thereafter, the tilting cylinder 60 operates to tilt and swing the tilting arm 52, thereby causing the coating supply member 35 to
The rear part is lifted upward and tilted to allow the infiltrated material D to flow out to the side of the screen material M. At this time,
The time required for the infiltration material D to blend into the surface of the screen material M can be arbitrarily set using a variable timer. Next, the coating lifting mechanism 40 is activated, and the unit 45 is lifted by the chain 44 which is driven and circulated. The infiltrating material D rising and flowing out from the coating supply member 35 while rising is coated and supplied to the surface of the screen material M. When the application supply member 35 reaches a predetermined position, the upward movement of the application supply member 35 is stopped, and the tilting cylinder 60 is operated again to return the application supply member 35 to the horizontal position.At that time, if necessary, it can be raised in that state. By doing so, the infiltrating material D overflowing from the coating supply member 35 can be scraped and collected. Next, the coating supply member 35 is moved backward by the operation of the advance/retreat cylinder 57, and the coating elevating mechanism 40 is operated in reverse to lower the unit 45, and the coating supply member 35 is separated from the surface M of the screen material. It then descends and returns to its original position.

This kind of application supply operation can be repeated multiple times if necessary, and if this is set in advance, the number of completed application processes will be counted each time one operation is completed, and automatic operation will start when the predetermined number of applications has been completed. stops and the work is completed.

By doing this, the squeegee surface of the screen printing plate S is known and the infiltrating material D is applied and supplied through the screen material M. During this time, the infiltrating material D infiltrates into the coating film 3 of the emulsion film 1 to obtain an appropriate viscosity. The printing surface of the screen material M is coated with a wafer, and when the coating and supply of the infiltration material D is completed, the support by the supporting mechanism 20 is released, the screen printing plate S is taken out, and the film base material in the emulsion film 1 is coated. By removing 2, the plate frame is completed.

(Effects of the Invention) Since the present invention is constructed as described above, when the emulsion film 1 is closely attached to the front surface of the mat 23, it is possible to avoid the effects of static electricity without providing any special temporary fixing or supporting fixing means. Therefore, it can be reliably supported in a predetermined position. In addition, when the coating supply member 35 supplies the infiltrating material D to the front surface of the screen material M in order to coat the coating film 3 of the emulsion film 1 on the surface of the screen material M, the coating supply member 35 Although the screen material M is raised while being pressed with a predetermined pressing force, the elastic action of the mat 23 itself gives an appropriate tension to the screen material M, and the application supply member 35 is smoothly raised while contacting the screen material M. Therefore, it is possible to achieve a great amount of movement.

Therefore, by adjusting the thickness of the coating film 3 on the emulsion film 1 and the coating pressure and speed of the coating supply member 35, it is possible to apply a transfer-formed emulsion film of a predetermined thickness to the surface of the screen material M. Moreover, this is achieved by the infiltrating action of the infiltrating material D on the coating film 3 after passing through the screen material M as the coating supply member 35 rises, so that the emulsion film is in close contact with the surface of the screen material M. It is applied.

Therefore, an emulsion film 1 having a coating film thickness 3 corresponding to the thickness of the emulsion film required for the screen printing plate S is prepared, and the coating supply mechanism 40,
By controlling the operation of the coating operation mechanism 50 with the control mechanism 70, the coating supply pressure and speed, and further selecting the infiltrating material D, can form an emulsion film with an accurate thickness on the printing surface of the screen printing plate S. In addition, since the infiltrating material D is evenly infiltrated over the entire coated surface, uniform infiltration is applied to any area, resulting in a smoother emulsion film. It is something that can be done.

In particular, the support mechanism 20 has a clamp 26 that closely supports the emulsion film 1 on a support plate 22 fixed to the base 10 and presses and fixes the flat screen printing plate S on the front surface of the emulsion film 1. Therefore, the screen material M of the screen printing plate S and the emulsion film 1 are in close contact with each other, and the coating supply member 35 is moved to the screen material M by the coating lifting mechanism 40 and the coating operation mechanism 50.
When raised while contacting the surface, the infiltration material D held by the coating supply member 35 is transferred to the screen material M.
The emulsion is infiltrated into the coating film 3 on average through the mesh, forming a uniform emulsion film. In addition, support plate 2
2 supports the entire emulsion film 1, and securely supports the flexible emulsion film 1 along with the screen printing plate S in a standing leg shape, and together with the smooth rise of the coating supply member 35, improves work efficiency. It is possible.

The coating operation mechanism 50 moves the coating supply member 35 that moves up and down along the screen material M on the front side of the screen printing plate S, and when it is raised, moves it forward toward the surface of the screen material M so that its front edge is in contact with and tilted. On the other hand, when descending, the screen printing plate S is returned to the horizontal position and is moved back to be separated from the screen material M, so that the infiltrating material D is applied only when the coating supply member 35 is raised. By supplying the liquid, the amount of infiltration and supply can be quantified, ensuring the formation of a smooth emulsion film without dripping during coating and supply.

As explained above, the present invention provides a film base material of an emulsion film on which an emulsion coating film of a predetermined thickness is layered, which is tightly supported on an elastic mat of a support mechanism, and the emulsion coating film of the emulsion film is formed into a pedestal shape. The coating is held in close contact with the screen material of the supported screen printing plate, and then only the coating film is removed by the infiltration action of the infiltration material supplied from the coating supply member that is set at a predetermined coating supply pressure and speed and increases. Since an emulsion film is formed by closely coating the surface of the screen material, it is possible to form an emulsion film of a uniform predetermined thickness without the need for the troublesome work required in the past, and it also allows for smooth movement of the coating supply member. This makes it possible to achieve excellent effects such as being able to obtain a screen printing plate that forms sharper lines during printing.

[Brief explanation of drawings]

Figure 1 is a front view, Figure 2 is a vertical sectional view, Figure 3 is a vertical sectional view of main parts, Figure 4 is a cross sectional view of main parts, Figure 5 is a pneumatic circuit diagram of the control mechanism, and Figure 6 is a FIG. 7 is a longitudinal cross-sectional view of another embodiment. D...Infiltration material, S...Screen printing plate, M...
... Screen material, P ... Frame, 1 ... Emulsion film, 2 ... Film base material, 3 ... Paint film, 10 ...
Base, 11... Base, 12... Left wall, 13...
...Right side wall, 14...Top wall, 15...Aziastha,
20...Support mechanism, 21...Fixing bar, 22...
Support plate, 23... Mat, 24... Clamp die, 25... Clamp fixing bar, 26... Clamp, 30... Film supply mechanism, 31... Supply roller, 35... Coating supply member, 40... Coating Lifting mechanism, 41... Lifting motor, 42... Guide,
43...Sprocket wheel, 44...Chain, 45...Unit, 46...Connection part, 47...
... Guide roller, 48 ... Upper/lower limit switch, 50 ... Application operation mechanism, 51 ... Pivot support pin,
52... Inclined arm, 53... Support, 54...
...Slide shaft, 55...Support bar, 56...
...Ball bushing part, 57...Advance/retreat cylinder,
58...Piston, 59...Joint, 60...
...Tilt motion cylinder, 61... Piston, 70...
Control mechanism, 71... Start switch, 72... Electrical section operation panel, 73... Pneumatic operation panel, 74
...Pressure reducing unit, 75...Switching valve, 76...Muffler, 77...Pressure reducing valve, 78...Speed controller.

Claims (1)

[Claims] 1. Left and right side walls facing each other are erected on the left and right sides of the base,
A base made of a frame, a support mechanism having a clamp that presses and fixes a flat screen printing plate to a support plate fixed to the base, and a coating supply member that holds a material to be infiltrated into the coating film. a coating lift mechanism that raises and lowers the coating supply member along the screen material on the front side of the screen printing plate, and when the coating supply member is raised, the coating supply member is advanced to the screen material surface, and its front edge is in contact with and inclined, When the coating and supplying member is lowered, the coating and supplying member returns to the horizontal position and is moved back to separate from the surface of the screen material. In an emulsion coating device for a screen printing plate having a control mechanism for controlling horizontal return and retreat, an emulsion is formed by removably layering an emulsion coating film of a predetermined thickness that can be wetted onto the surface of a film base material. A screen printing plate characterized by forming a film, attaching a mat made of an elastic material to the front surface of a support plate fixed to a base, and closely supporting the emulsion film with the coating side facing forward on the front surface of the mat. Emulsion coating equipment. 2. The apparatus for applying emulsion to a screen printing plate according to claim 1, wherein the support mechanism is provided with a film supply mechanism that winds and stores the emulsion film to be cut to a required length.