JPS6135427Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a cutting structure for interior materials. To explain in more detail, the interior material formed by joining the skin material and the base material is placed on a lower mold having a lower blade. This invention relates to an interior material cutting structure in which an interior material is cut into a desired shape by lowering a vertically movable upper mold.

Conventionally, when cutting interior materials, as shown in FIG. 1, a lower blade 2 is formed at the upper corner of a lower mold 1, a cardboard base material 4 is placed on the lower mold 1, and a raised tricot 8, etc. is placed on the urethane foam 7. An interior material 3 made of a laminated product such as a laminated skin material 5 is placed, and with this interior material 3 pressed down by a presser plate 9, an upper mold 10 having an upper blade 11 at the tip is connected to a lower blade 2. It was lowered at minute intervals and cut by the shearing force between the lower blade 2 and the upper blade 11.

However, since the interior material 3 is a laminated product with the base material 4 and the skin material 5, the interval between the lower blade 2 and the upper blade 11 must be set extremely finely, making it difficult to set cutting conditions. If 3 is a thermoformed product,
The lower blade 2 and the upper blade 11 thermally expand, and the lower blade 2 and the upper blade 11
It is extremely difficult to finely adjust the spacing, and there are also disadvantages in that uneven cutting and uncut portions occur frequently.

The purpose of this invention is that it is easy to set cutting conditions, there is no need to finely adjust the distance between the lower blade and the upper blade, there is no risk of uneven cutting or uncut parts, and it is extremely economical with fewer defective products. The present invention provides an excellent cutting structure for interior materials, and will be described in detail below with reference to the drawings.

FIGS. 2 to 4 each schematically show an embodiment of the interior material cutting structure according to the present invention, and the interior material 3 to be cut in this embodiment is a cardboard base material 4 similar to that described above. and urethane foam 7
A product is shown in which the skin material 5 is laminated with a raised tricot 8 and a laminated product.
As long as it is a laminated product of the base material 4 and the skin material 5, it is not limited to what is shown in the drawings.

A cutting machine 21 used to cut the interior material 3 includes a lower die 22, an upper die 23, and a holding plate 24 for the interior material 3, and the upper die 23 and the holding plate 24 are movable up and down by a vertical lifting means (not shown). It is located in

A lower blade 25 is fixed to the upper corner of the lower mold 22,
An inclined surface 26 is formed extending diagonally from the lower blade 25. A fitting recess 27 is formed on this inclined surface 26, and a fine unevenness 28a for holding down is formed on the mounting surface 28 of the lower mold 22 for the interior material 3.

Further, a curved collision surface 31 that collides with the lower blade 25 of the lower mold 22 is formed on the upper mold 23, and a convex portion 32 that can fit into the fitting recess 27 of the lower mold 22 is formed on the collision surface 31. It is formed in a spaced apart position below. This convex portion 32 acts to pull the end portion of the interior material 3 downward when the upper mold 23 descends. A plurality of these convex portions 32 are provided below the collision surface 31 of the upper mold 23, and are configured so that they can fit into the respective fitting recesses 27 provided along the inclined surface 26 of the lower mold 22. It is also possible to increase the tensile force that pulls the end of the material 3 downward.

The structure of one embodiment of the interior material cutting structure according to the present invention has been described above, and its operation will now be explained with reference to FIGS. 2 to 4.

First, as shown in FIG. 2, the lower die 2 of the cutting machine 21
The interior material 3 is placed on the holder 2, and the cutting portion of the interior material 3 is set at the lower blade 25 position. In this state, the press plate 24 is lowered to fix and hold the interior material 3 on the lower die 22. Next, the upper mold 23 is lowered at a predetermined speed. The upper die 23 may be lowered in a vertical direction, but in this embodiment, it is set to descend in an inclined direction having an inclination angle α with respect to the vertical direction p.

As shown in FIG. 3, when the upper mold 23 is lowered,
The convex portion 32 of the upper mold 23 first catches the end of the interior material 3, and a downward tensile force is applied to the cutting side of the interior material 3, and then the curved collision surface 31 of the upper mold 23 engages the lower blade 25. collide with The interior material 3 is cut at the cutting location due to the impact force caused by the collision between the collision surface 31 and the lower blade 25. At this time, as shown in FIG. 4, the protrusion 32 of the upper mold 23 fits into the fitting recess 27 of the lower mold 22, and the interior material 3 is held securely and firmly without being pulled downward more than necessary. Since the paper is cut in the same state, there is no risk of the cut location being misaligned.

According to the present invention, fine adjustment of the interval between the upper blade and the lower blade is not required to cut the interior material, and the curved collision surface formed on the upper mold collides with the lower blade of the lower mold. Since all you have to do is set it so that the
There is no risk that the interior material will be caught between the upper and lower blades and pulled downward, resulting in uncut material or uneven cutting, and when the upper die is lowered, an appropriate tensile force is applied to the interior material to ensure cutting. It is possible to obtain an interior material cutting structure that is extremely easy to perform, has no risk of producing defective products, and is extremely economical.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional explanatory diagram showing a conventional interior material cutting structure, and FIGS. 2 to 4 each show an example of the interior material cutting structure according to the present invention. 3 is an explanatory cross-sectional view showing the state in which the upper die is lowered, and FIG. 4 is an explanatory cross-sectional view showing the state after cutting. In the figure, 3... Interior material, 4... Base material, 5... Skin material, 21... Cutting machine, 22... Lower die, 23... Upper die, 24... Holder plate, 25... Lower blade , 26... Inclined surface, 27... Recess, 31... Collision surface, 32...
Convex part.

Claims (1)

[Claims for Utility Model Registration] (1) A lower mold having a lower blade at an upper end corner, and an upper mold disposed so as to be movable up and down, the upper mold colliding with the lower blade of the lower mold. A collision surface with an arcuate cross section is formed at the position where the collision surface is obtained, and a protrusion that applies a tensile force to the end of the interior material placed on the lower die is formed at a spaced apart position below the collision surface. Features cutting structure of interior materials. (2) A utility model characterized in that an inclined surface is formed that extends diagonally downward from the position where the lower blade of the lower mold is formed, and a recess into which the protrusion of the upper mold fits is formed on the inclined surface. A cutting structure for interior material according to registered claim 1.