JPH0234691Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is designed to determine the relative position of the register pin holes in the original plate and the register holes for the chase pins in the screen frame when baking a screen printing plate for screen printing in the process of manufacturing precision parts such as electronic parts. It relates to a jig that connects in a controlled manner.

Conventionally, in the screen printing plates used for screen printing, different registration methods are used when creating the master plate and when creating the printing plate and printing, and tools such as rulers are used to ensure alignment between the two. Usually, this is done visually, and it is difficult to maintain consistent registration accuracy from the time of creating the master plate to printing.
It was unsuitable for processes requiring precision.

In recent years, screen printing has been adopted as part of the electronic component manufacturing process due to its printing characteristics, but since printing accuracy is directly reflected in the yield of the entire manufacturing process and the accuracy of the product itself, more precise plate making is required. has become required. however,
Conventional methods have limitations in improving accuracy, require a large amount of time to heat up the printing plate printing process, and additionally require a huge amount of time for registration, etc. during printing. Furthermore, it is essential to print a reference line for registration on the printing surface, which requires extra printing material in areas other than the image, leading to an increase in costs.

The present invention provides a jig used for precise screen printing, which improves the above-mentioned drawbacks. That is, the present invention has a frame, and has locking projections for positioning protruding in the thickness direction of the frame that can be engaged with register holes for chase pins of a screen printing frame, and that can be engaged with pins of a pin bar for fixing an original. This precision screen printing plate printing jig has holes in the thickness direction of the frame for possible positioning, and is made of a material that does not easily deform.

The present invention will be explained in detail below based on the drawings. FIG. 1 is a perspective view of an embodiment of the jig of the present invention, and numeral 1 is the jig body, which is machined from aluminum. As the main body material, it is preferable to use a material that is easy to process and does not easily deform, such as brass or brass in addition to aluminum. The jig body 1 is the back column 1
It has a substantially U-shape composed of side pillars 1b and 1c, and has locking supports 2 at the tips of the side pillars 1b and 1c. The side posts 1b and 1c have appropriate lengths depending on the position of the register hole for the chase pin in the screen frame. The locking support 2 may be made of the same material as the jig main body, or a steel plate or the like may be fixed to the main body by means such as riveting. 3 is a locking protrusion that engages with the register hole for the chase pin in the screen frame, and is fixed to the locking support 2 so that it will not loosen when engaged. 4a, 4b
is a pin hole that engages with the pin of the pin bar, and is machined to prevent loosening when engaged.

FIG. 2 is a plan view showing the usage situation when printing a screen printing plate using the jig of the present invention.
5 is a pin bar, and 6 is an original plate, which is fixed to the pin bar 5 with a pin. Reference lines 7a and 7b may be printed on the screen printing plate at the time of plate making of the original plate, or may not be printed by blocking light. 8 is a screen frame, and 9 is a printed pattern. Figure 3 is a sectional view taken along line A-A in Figure 2, and Figure 4 is a cross-sectional view of Figure 2.
It is a sectional view taken along the line XX in the figure, and 10 indicates the glass of the printing plate printing machine. The arrow indicates the direction of incident light for printing. Although a jig having a roughly U-shaped jig main body has been described above, the jig in the present invention is by no means limited to this shape, and may have any shape that can be considered based on the purpose of the present invention, such as a stand. An appropriate shape such as a semicircular shape, a rectangular shape, etc. can be adopted. Depending on the shape of these jig bodies, the locking support 2
The locking protrusions 3 may be directly provided by machining the ends of the side columns 1b and 1c without using them.

Next, the functions of the present invention will be explained. The original plate 6 is a film in which a pattern is drawn on a scribe film or the like by a plotter, or a film created by photolithography, and each original plate is made into plates as many as the number of colors to be overprinted in the printing process or the number required for pattern formation. The relationship between the reference line, pin bar punch hole, and pattern is the same for both. That is, the patterns are precisely registered by the pin bar. The same number of screen frames 8 as the originals are prepared, and the register holes for the chase pins in each screen frame 8 are exactly the same. That is,
The screen frame 8 is precisely registered with respect to the printing machine by means of chase pins. When printing a printing plate, first, the original plate 6 is mounted on the fixed pin bar 5. At this time original version 6
Needless to say, there is a punch hole for the pin bar. Next, insert the invented jig into the pin hole 4.
a and 4b are mounted so that they engage with the pins of the pin bar 5, and then the screen frame 8 is mounted so that the register hole for the chase pin engages with the locking protrusion 3 of the jig, and exposure is performed.

If the jig of the present invention is used, the above-mentioned configuration is achieved when printing a screen printing plate, so the pin bar 5, screen frame 8, and original plate 6 are always in a constant positional relationship, making it possible to print with extremely high precision. Summer. It does not require particularly experienced skills, it streamlines registration, it is easy to maintain consistent registration accuracy, it does not require printing reference lines, it does not require extra printing materials, etc. It can be effective, and when applied to the electronic component manufacturing process, the effect is particularly remarkable, such as the yield of the entire manufacturing process being extremely high.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the jig of the present invention. FIG. 2 is an explanatory diagram of the use of the present invention. FIG. 3 is a sectional view taken along the line A-A in FIG. 2. Figure 4 shows the X-
It is an X-ray cross-sectional view. 1... Jig body, 2... Locking support, 3... Locking protrusion, 4a, 4b... Pin hole, 5... Pin bar, 6
...Original plate, 7...Reference line, 8...Screen frame, 9...Printed design, 10...Glass.

Claims (1)

[Scope of utility model registration request] The frame has a locking protrusion for positioning that can be engaged with the register hole for the chase pin of the screen printing frame, and has a locking protrusion protruding in the thickness direction of the frame, and the positioning protrusion that can be engaged with the pin of the pin bar for fixing the original plate. A precision screen printing plate baking jig that has holes in the thickness direction of the frame and is made of a material that does not easily deform.