JPH0440901Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is based on a cutting die that is set in a cutting die in order to simultaneously create crease lines on the cardboard sheet when punching out a cardboard sheet such as paperboard or corrugated paper using the cutting die. This relates to a synthetic resin pressed line.

[Prior Art] For example, a cutting die for punching out corrugated paper for making boxes has a cutting blade and a press line placed on the base plate.
In this case, extreme care must be taken because if the stamped lines deviate even slightly from the position laid out on the base plate, the box will not be able to be assembled or the box will become deformed. Therefore, as disclosed in Japanese Utility Model Publication No. 51-25839, there is a device in which the stamped lines are molded from transparent synthetic resin so that the stamped lines can be easily placed correctly on the laid out lines. However, when nailing the stamped line to the platen, even if you hold the stamped line firmly with one hand, if the nail is driven diagonally, it tends to shift laterally, so it cannot be fastened accurately. This required considerable skill.

In addition, since not only a vertical load but also a considerable lateral load is repeatedly applied to the press rule during use, the nail holes in the conventional synthetic resin press rule described above gradually expand, causing further lateral slippage. .

[Purpose of the invention] Therefore, the present invention aims to make it possible to fix the stamped lines on the base plate with high precision and without requiring any skill, and to improve its durability.

[Means for achieving the purpose] In order to achieve the purpose, the press rule of the cardboard sheet cutting die according to the present invention has a protrusion integrally formed in the center of the upper surface, and nail holes are dotted on both side edges. A belt-shaped body made of synthetic resin, in which a plurality of long positioning pieces with a rectangular cross section are integrally protruded from the center of the lower surface of the body along the longitudinal direction of the belt-shaped body at regular intervals so that gaps are created between each positioning piece. The present invention is characterized in that the positioning piece is fitted into a slit-like through hole formed in the base plate.

[Example] A pressed line 1 made of hard synthetic resin is a band-shaped body with a protrusion 2 integrally formed at the center of the upper surface and nail holes 3, 3, etc. dotted on both side edges, and at the center of the lower surface. A plurality of positioning pieces 4, 4, .

However, when setting the lever press rule on the base plate 5 made of plywood or the like, the positioning pieces 4, 4, . ... is formed into a broken line shape. Then, the positioning pieces 4 are inserted into the through holes 6, 6...
4... are fitted and nails 7 are driven into the nail holes 3, 3... to fix the stamped rule 1 on the base plate 5. In FIG. 4, numeral 8 indicates a cutting blade fixed to the base plate 5.

Incidentally, FIG. 5 shows a cross section of the fixing part of the press line 1, and as shown in this figure, a steel support plate 9 that contacts the positioning piece 4 is fitted into the through hole 6. , the support plate 9 is attached to a steel mold base 10 on which the base plate 5 is supported.
By abutting the lower end of the press line 1, the vertical load applied to the press line 1 is transferred to the mold table 10 via the positioning piece 4 and the support plate 9.
By configuring it so that the load is applied to it, it is possible to prevent the protrusion 2 from settling during use.

[Effects of the invention] As described above, in the pressing rule of the present invention, a longitudinally long positioning piece with a rectangular cross section is fitted into a slit-shaped hole formed in the base plate. The lateral load applied to the rule can be applied to the inner surface of the hole through the longitudinal side of the positioning piece, and even if repeated lateral loads are applied, it can be supported with a wide contact surface, effectively preventing lateral displacement and damage. It will be possible to prevent this from happening. In addition, when manufacturing cutting dies, by first fitting the positioning piece into the through hole of the platen, the positioning can be easily performed, and there is no need to worry about it shifting during nailing, making it possible to manufacture without the need for skill. effective.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a front perspective view of the pressed line, Fig. 2 is a bottom perspective view thereof,
Figure 3 is a perspective view of the plate, Figure 4 is a perspective view of the cutting die,
FIG. 5 is a sectional view taken along the line X--X in FIG. 4. 1... Pressing line, 2... Projection, 3... Nail hole, 4...
...Positioning piece, 5...Base plate, 6...Through hole.

Claims (1)

[Scope of utility model registration request] It is a band-shaped body made of synthetic resin that has a protrusion integrally formed at the center of the upper surface and nail holes dotted on both side edges, and has a plurality of long strips along the longitudinal direction of the band-shaped body at the center of the lower surface. Positioning pieces having a rectangular cross section are integrally protruded at regular intervals so that gaps are created between each positioning piece, and the positioning pieces are fitted into slit-like through holes formed in the base plate. Press line with guide for cardboard sheet cutting die.