JPH055561Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention is attached to a part of the drawing table of an automatic drawing machine used in the block making process or plate making process, and is used to draw multiple sheets of film or paper. More specifically, regarding the pin bar placement device used with reference to the position between the images drawn on the
This invention relates to a device for arranging and fixing a pin bar so that the line connecting the centers of the pins in the pin bar is always parallel to the X-axis or Y-axis of the drawing table.

[Conventional technology]

The above-mentioned automatic drawing machine is used, for example, in the photolithography process to produce masks for multiple contact exposure and layout base sheets for pasting (hereinafter referred to as "cut masks").
This cut mask is positioned and superimposed on the original film so as to accurately match it, and in the next step, the necessary parts of the image are copied using a contact printing machine or a plate-making camera.

The pin bar used for this alignment is usually a thin long plate with two pins set up on it, and is attached to the end of the drawing table. etc. are positioned and held on the drawing table. Since a wide variety of standards are used depending on the purpose, they are replaced and pasted to the required standard each time.

By the way, to attach this pin bar, we need to draw a line connecting the centers of the pins (hereinafter referred to as the "pin center line").
) may need to be attached exactly parallel to the X-axis (or Y-axis) of the drawing table. A detailed explanation will be omitted here, but for example, when creating a ruled line mask used for framing an image in addition to the above-mentioned cut mask, it is necessary to transfer the ruled line mask created by an automatic drawing machine to another film. In order to use the developed mask as a ruled line mask during actual work, it is left and right reversed from the original ruled line mask. If the pin center line is not parallel to the X-axis (or Y-axis), when the original film and cut mask are superimposed on each other with reference to the pin holes, a deviation will naturally occur between them.

[Means for solving problems]

Therefore, set this pin center line to the X axis (or Y axis)
In order to attach the pin bar so that it is accurately parallel to
The pins are moved in the axial direction, adjusted so that the indicated value is the same for each pin when the pin and gauge actuator are joined, and then attached.

Therefore, if there is a discrepancy in the indicated value even after pasting,
The work of peeling off the pin bar once attached and re-attaching it until the misalignment is eliminated has to be repeated every time the pin bar is replaced with a pin bar of each standard used, which requires a great deal of effort and time.

This idea was made in view of the above-mentioned current situation, and it is possible to easily move the pin bar to the surface table so that the pin center line of the pin bar is parallel to the X-axis or Y-axis of the drawing table, and to make it relatively short. To provide a pin bar placement device that can be placed and fixed at any time, and that allows you to adjust each type of pin bar only once for the first time and then eliminate the need for any adjustment operations when replacing the pin bar. The technical challenge is to do so.

[Means for solving problems]

That is, the pin bar arranging device according to this invention includes a pin bar affixing plate having a flat plate portion on the upper surface to which a pin bar is affixed, and a mounting portion for a surface plate table of an automatic drawing machine, etc., which is superimposed on the lower surface side of the pin bar affixing plate. a mounting plate attached to the pin bar mounting plate; a rotating means for slightly rotating the pin bar mounting plate relative to the mounting plate in a horizontal plane about a point on a flat surface of the pin bar mounting plate; a fixing means for fixing to the plate in a required positional relationship; and a fixing means disposed on the mounting plate that engages with positioning pins or pin holes disposed at at least two locations on the mounting portion of the surface plate table. It is comprised of a pin hole or pin for positioning, and fixing means for detachably fixing the mounting plate to the mounting portion of the surface plate table.

[Effect]

The required pin bars are attached to the lower surface of the plane plate of the pin bar attachment plate, and the attachment plates are attached to the attachment parts fixed to the edge of the drawing table of an automatic drawing machine, etc., respectively. Each positioning pin hole is engaged with each pin, and the drawing table is always fixed at a fixed position with respect to the drawing table by the fixing means. In this state, the rotating means slightly rotates the pin bar attaching plate relative to the mounting plate in a horizontal plane around one point on the pin bar attaching plate, so that the pin center line of the pin bar is aligned with the X axis (or Y axis) of the surface plate table.
Once the adjustment is complete, use the fixing means to fix the pin bar attachment plate to the mounting plate. Also, pin bars of different standards are fixed to separate mounting plates in the same manner as above. That is,
The pin bars of each standard are prepared by being fixed to a mounting plate, and each time they are used, they are attached to an automatic drawing machine as described above.

〔Example〕

Hereinafter, preferred embodiments of this invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a part of a pin bar placement device showing one embodiment of this invention;
The figure is a plan view of the installed state, and Figure 3 is A- of Figure 2.
4 is a sectional view taken along line B-B' in FIG. 2 in the direction of the arrow, and FIG. 5 is a front view of the eccentric pin. This pin bar placement device is composed of a pin bar attachment plate 10 and a mounting plate 12. The pin bar attachment plate 10 has a flat plate portion 14 and a vertical plate portion 16, and the attachment plate 12 is provided on the lower surface side of the flat plate portion 14. Polymerized. and,
A pin bar 18 is attached to the upper surface of the flat plate part 14 of the pin bar attachment board 10, with the long side 22 of the pin bar 18 aligned with the long side 20 of the flat plate part 14. In the figure, reference numerals 24 and 24' indicate pins vertically disposed on the upper surface of the pin bar 18. In the flat plate part 14 of the pin bar attachment board 10, a long hole 26 and a stepped long hole 28 are formed at one end in the longitudinal direction, and a circular hole 30 and a circular stepped hole 32 are formed at the other end. There is. On the other hand, a screw hole is formed in the mounting plate 12 at a position corresponding to the circular hole 30 of the pin bar attachment plate 10, and a screw pin 44 is screwed into the screw hole. The head is fitted into the circular hole 30 of the pin bar attachment plate 10. In addition, a headed eccentric pin 34 as shown in FIG.
is rotatably held. Headed eccentric pin 3
4, a head portion 36 in which a groove 38 is formed, a shaft portion 40;
and an E-shaped retaining ring 42. When the head 36 is fitted into the elongated hole 26 of the pin bar attachment plate 10 and the tip of a screwdriver is inserted into the groove 38 and the screwdriver is rotated, the head eccentricity is removed. The pin 34 rotates, and as the pin 34 rotates, the outer peripheral surface of the head 36 aligns with the elongated hole 2.
The pin bar attachment plate 10 is slightly rotated about the circular hole 30 in a horizontal plane with respect to the attachment plate 12 while partially slidingly contacting the inner circumferential surface of the pin bar attachment plate 6 . Further, screw holes are formed at positions corresponding to the stepped elongated hole 28 and the circular stepped hole 32, respectively, and the stepped elongated hole 28 is provided with screw holes.
8 and the circular stepped hole 32 with fixing screws 46,
By inserting the screw shafts 48 and fixing the fixing screws 46 and 48 to the mounting plate 12, the positional relationship between the pin bar attachment plate 10 and the mounting plate 12 is fixed.

Further, at both ends of the mounting plate 12, pin holes 50, 52 for positioning, and stepped holes 54,
56 is formed. On the other hand, the surface plate table 58
A mounting portion 60 is fixedly attached to the edge portion. The mounting portion 60 is composed of a square pipe base 62, a pin mounting plate 64, and a support plate 68. The square pipe base 62 is fixed to the edge of the drawing table 58 with fixing screws 70, and each fixing screw 72
By inserting screw shafts of fixing screws (not shown) from above and below through the pin mounting plate 64 and screwing them into the respective cylindrical bodies 74 fixed to the inside of the square pipe base 62, the pin mounting plate 64 becomes square. It is integrally fixed to the pipe base 62. Further, the support plate 68 is fixed to the square pipe base 62 with fixing screws 78. The pin mounting plate 64 of the mounting portion 60 has pin holes 50 and 5 of the mounting plate 12.
Positioning pins 80, 8 that fit into 2, respectively
2 are held therein, and screw holes are formed into which the screw shafts of fixing screws 84 and 86 inserted through the stepped holes 54 and 56 of the mounting plate 12 are screwed, respectively.

Next, the operation of arranging and fixing the pin bar 18 so that the pin center line C is parallel to the X axis of the drawing table 58 will be explained.

First, the pin bar 18 is attached to the upper surface of the flat plate part 14 of the pin bar attachment board 10, with the long side 22 of the pin bar 18 aligned with the long side of the flat plate part 14, using double-sided adhesive tape. In this state, the pin center line is approximately parallel to the X axis. The pin bar arrangement device to which this pin bar 18 is attached is attached to the attachment part 60 of the surface plate table 58, and the pin holes 50, 52 for positioning the attachment plate 12 are fixed to the attachment plate 64 of the attachment part 60 using the pins 80, 82. After positioning by inserting the fixing screws 84,
Tighten 86 to secure it. In this installation state,
As described above, a dial gauge is attached to the head of the automatic drawing machine (not shown), and while the head is linearly reciprocated in the X-axis direction, fluctuations in the indicated value of the dial gauge are observed. Then, use the tip of the screwdriver to tighten the eccentric pin 3 so that the fluctuation is zero.
4 and slightly rotate the pin bar attachment plate 10 with the circular hole 30 and the screw pin 44 as the center of rotation to adjust its posture, the pin center line C will be set parallel to the X axis. It means that it was done. When the adjustment is completed, the pin bar attachment plate 10 and the mounting plate 12 are fixed in their positional relationship by tightening the fixing screws 46 and 48. The work of arranging and fixing the pin bar 18 can be completed in a short time with extremely simple operations as described above.

If the above-mentioned installation operation is performed only once at the beginning, even if the pin bar placement device is once removed from the mounting portion 60 of the surface plate table 58, the pin bar placement device can be stored with the pin bar still supported. By doing so, there is no need for any adjustment operation the next time you try to use that pin bar. That is, by engaging the positioning pin holes 50 and 52 of the mounting plate 12 with the pins 80 and 82 of the mounting part 60, the mounting plate 1
2 and the mounting part 60, and tighten the fixing screws 84 and 86 to fix the pin bar placement device to the mounting part 60, the initial state will be restored. In that state, the pin center line C of the pin bar 18
is parallel to the X axis of the surface table 58,
There is no need for any adjustment operation. moreover,
If you prepare this pin bar placement device for each of the multiple types of pin bars you plan to use and perform the above operations once for each pin bar, then when you need to change the type of pin bar in the future, you can simply replace the pin bar. can be done very easily and very quickly.

[Effect of idea]

Since this device is constructed and used as explained above, prepare the pin bar placement device of this device for each of the multiple types of standard pin bars to be used, and align the pin center line parallel to the X-axis (or Y-axis). If you perform the simple setting operation only once at the beginning, when you want to place and fix the pin bar on the surface plate table, you can easily align the pin to the center by simply engaging and fixing it with the positioning pin. The wire can be mounted parallel to the X-axis (or Y-axis), significantly saving time and effort compared to conventional methods.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view of a pin bar placement device showing one embodiment of this invention, FIGS. 2 to 4 each show the pin bar placement device attached to the attachment part of a surface table, and FIG. is a plan view, FIG. 3 is a vertical cross-sectional view taken along line A-A′ in FIG. 2, FIG. 4 is a vertical cross-sectional view taken along line B-B′ in FIG. 2, and FIG. It is a front view of a pin. 10...Pin bar attachment board, 12...Mounting plate, 14...Horizontal plate part, 18...Pin bar, 2
4, 24'...pin, 26...elongated hole, 28...stepped elongated hole, 30...circular hole, 32...circular stepped hole,
34...Eccentric pin with head, 44...Screw pin, 4
6, 48... Fixing screw, 50, 52... Pin hole for positioning, 54, 56... Stepped hole, 58... Surface plate table, 60... Mounting part, 80, 82...
Positioning pins, 84, 86...Fixing screws.

Claims (1)

[Scope of utility model registration request] a pin bar attaching plate having a flat plate portion on the upper surface to which a pin bar is attached; a mounting plate superimposed on the lower surface side of the pin bar attaching plate and attached to a mounting portion of a surface table of an automatic drawing machine; and the pin bar attaching plate. a rotation means for slightly rotating the pin bar attachment plate relative to the mounting plate in a horizontal plane around a point on a flat surface of the pin bar attachment plate; and a fixing means for fixing the pin bar attachment plate to the attachment plate in a required positional relationship; positioning pin holes or pins disposed on the mounting plate that respectively engage with positioning pins or pin holes disposed at at least two locations on the mounting portion of the surface plate table; A pin bar arrangement device consisting of a fixing means that is detachably fixed to the mounting part of a surface plate table.