JPS6049816A - Manufacture of model for press die - Google Patents

Abstract

PURPOSE:To perform simply and easily the surface sticking of a model by sticking an irregular heptahedron dice on the corner part of the three faces of a model for a press die and sticking triangular-prism materials on the three faces of the dice and the corner part. CONSTITUTION:An irregular heptahedron dices 6, formed by cutting a regular cube by a surface which passes the diagonal of one face of the cube and the vertex of the opposite face, is sticked on the corner part formed by the three faces of a model. Next, triangular-prism materials 3 are fitly sticked on the three faces of the dice 6 and on the corner part of the model. The chamfering of model is remarkably easily performed by using the dice 6. Further, the dice 6 is easily manufactured by inserting a material into a cylindrical jig 10 and cutting the material along a slant surface 13 to form its slant surface and finally cutting the tip of the formed surface by a slitter 12.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention belongs to the field of technology for manufacturing press mold models, and relates to a method for manufacturing press mold models.

(Prior art) Conventionally, the horizontal press type 1 as shown in Fig. 1 is usually made of styrofoam, but in order to reinforce the lip, the corner A between the blood and the surface is pasted with a styrofoam. After shaping with a knife into three types of shapes, such as a double-sided triangular prism 3, a single-sided triangular prism 4, and a double-sided triangular prism 5, as shown in Fig. 2,
As shown in Figure 3, the triangular prism members 3, 4, and 5 were pasted onto the model body in the order of 3, 4, and 5 with adhesive. However, since the end shapes of the triangular prisms are different, only an experienced person will be able to attach the corners as desired. Moreover, each part has about 100 corner parts, which requires a large number of man-hours. Furthermore, each time it is used, the end of the triangular prism material is shaped with a knife, which improves work efficiency. There were problems such as:

(Object of the Invention) The present invention has been made in view of the problems existing in the above-mentioned prior art, and improves the workability when performing surface pasting of corner parts, and makes it easy even for non-experts. The object of the present invention is to provide a method for manufacturing a press model that allows surface pasting work.

(Structure of the Invention) In order to achieve the above object, the structure of the present invention is such that an irregular seven-sided die is arranged at the corner part, and a triangular prism is used as the irregular seven-sided die.
It is characterized by being pasted on three sides of a face-shaped die to attach the faces of a press-type model.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

The one shown in Figure 4 is an irregular seven-sided die 6, which is a six-sided die cut so as to leave one plane formed by the three diagonals of the six-sided die. This irregular hetahedral dice 6 is made in advance, placed at the corner as shown in FIG. 5, and only conventional double-cut triangular prisms 3 are pasted in three directions.

Next, the ridge-building device of the irregular seven-sided dice 6 will be explained. First, as shown in FIG. 6, an elongated polystyrene foam rectangular parallelepiped 7fr was cut into cubes with a knife 8, and then, as shown in FIG. However, with this method, each piece is made with a knife, so the size and shape are inconsistent, making it difficult to produce pieces of the same shape and size, and the workability is also poor. Also, irregular 7 blood dice 6
Since FC is used in large numbers, it takes a lot of man-hours to manufacture. In addition, since the knife is used frequently, there is a high risk of injury from the knife. There were some problems, and improvements were hoped for. Therefore, an apparatus for manufacturing irregular seven-curved dice 6 as shown in FIGS. 8 to 10 was devised. That is, a hollow prismatic body 10 is placed on a stand 9, a rectangular parallelepiped 7 is accommodated within the hollow prismatic body 10, and the tip of the rectangular parallelepiped 7 is placed inside the hollow prismatic body 10. The wire is cut using an M Wonichrome wire cutter 11 (see FIG. 11). The tip of the hollow prismatic body 10 is formed so that only the extra portion of the rectangular parallelepiped 7 protrudes, and grooves 12 are provided at predetermined locations.

Therefore, the nichrome wire cutter 1 is cut along the slope 13 at the tip.
1, cut the rectangular parallelepiped with the same nichrome wire cutter 11 along the groove 12, and push the rectangular parallelepiped 7 to the right to obtain an irregular hetahedral die 6. From now on, if you repeat the same operation, the irregular 7-sided true dice 6 will come out in a continuous manner.

Note that a dry battery is sufficient as the power source for the nichrome wire cutter 11. The apparatus for manufacturing irregular 7-dimensional dice shown in FIGS. 8 to 10 improves workability and safety, and moreover, it is easy to manufacture dice of the same size and shape.

(Effects of the Invention) As described above, according to the present invention, by using irregular hetahedral dice, even beginners can easily perform pasting work, improving workability and reducing man-hours. A manufacturing method can be provided.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the press model, Figures 2 (a) and (b)
, (C) is an explanatory diagram showing the tip of a conventional triangular prism material and its right side view, Fig. 3 is an explanatory diagram of a corner part by conventional surface pasting work, and Fig. 4 is an explanatory diagram of an irregular seven-sided die according to the present invention. The perspective view, Figure 5 is an explanatory diagram of the corner part, and the figure on page 46 is an explanatory diagram showing a rectangular parallelepiped that is the assembly material of the irregular 7 If 11-piece dice. Figure 27 is an explanatory diagram of the cube assembly material being cut with a knife. The figure is a perspective view of a manufacturing device for irregular seven-sided dice.
Figure 9 is a cross-sectional view with a rectangular parallelepiped sound inserted into the manufacturing equipment, Figure 10
The figure is a vertical cross-section of FIG. 9, and FIG. 11 is a perspective view of the nichrome wire cutter. 1... Model 2... Triangular prism material 6... Irregular hetahedral dice Patent applicant Toyota Motor Corporation (and 1 other person) Figure 1 Fang 2 Figure 5 O Figure 6

Claims (1)

[Claims] (1) A method for manufacturing a press mold model, characterized in that the irregular hetahedral dice is arranged at the o=i corner, and triangular prism materials are pasted on three sides of the irregular hetahedral dice to attach the faces of the press mold model.