JPH0225766B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mold used for manufacturing watermark buttons for clothing, which are light in weight by recessing the back side and making the entire material thinner.

[Conventional technology]

BACKGROUND ART Conventionally, as a method for producing buttons using molds, a method is known that includes one upper mold that moves up and down and a lower mold that is divided into two that moves back and forth in the left and right directions.

[Problem that the invention seeks to solve]

When using the above-mentioned conventional mold, it was impossible to create a watermark or make a recess on the back side in order to move the two-split lower mold back and forth in the left and right directions.

[Means of trying to solve the problem]

The present invention includes a convex mold that forms a concave part on the back side of the finished product, which is integrally provided on the upper surface of the fixed lower mold, and a hole-shaped mold that forms a ring stopper standing part on the finished product in the center of this convex mold. The upper and lower ends thereof penetrate the upper and lower surfaces of the convex mold, and the fixed lower mold and the piece body have both ends open to both sides of the fixed lower mold, and the upper surface meets the lower surface of the hole-shaped mold. A pair of movable lower molds are provided on both sides of the fixed lower mold that move forward and backward toward the fixed lower mold, and a pair of movable lower molds are provided on both sides of the fixed lower mold, and a pair of movable lower molds are provided on both sides of the fixed lower mold. A pair of pin-shaped molds are fixed, which move forward and backward together with the pin-shaped mold, and whose front end surfaces closely abut each other at the lower center of the hole-shaped mold when moving forward, and when they collide with the front end surfaces of the pin-shaped mold, they come together. A lower mold device is constructed by drilling a pair of grooves to form a groove mold for forming a retaining ring, and a front surface of the finished product is placed on the lower surface at a location corresponding to the upper surface of the piece body. It consists of a concave mold whose shape and size correspond to the shape and size of the mold, and an upper mold device having upper and lower convex portions on the mold surface of the concave mold for forming watermark holes. When the molds are in a mating state, the outer circumferential surface of the opening edge of the concave mold is in close contact with the top surface of the piece body, and the top surface of the vertically directed convex portion for forming the hole is in close contact with the mold surface of the convex mold. This makes it possible to form a watermark and create a recess on the back surface.

〔Example〕

In the embodiment shown in the figure, a lower recess 3 is provided on the upper surface of a fixed lower mold 2 fixed to a mold base 1.
A lower piece 4 is fitted in the lower piece 4 so as to be replaceable by insertion and removal, and a convex mold 6 is integrally provided on the upper surface of the lower piece 4 to form a concave portion 5 on the back side of the finished product A.
At the center of this convex mold 6, there is a stand 7 for attaching a ring to the finished product.
The hole-shaped mold 8 that forms the same convex mold 6 at its upper and lower ends
A horizontal hole 9 is formed so as to penetrate through the upper and lower surfaces of the fixed lower mold 2 and the lower piece body 4, and the both ends thereof are open to both sides of the fixed lower mold 2, and the upper surface thereof is in contact with the lower surface of the hole-shaped mold 8. At the same time, the same fixed lower mold 2 is drilled on both sides of the fixed lower mold 2.
A pair of movable lower molds 10, 10' are provided which move forward and backward along the mold base 1 facing toward
0, 10' and screws 11, it moves forward and backward in one piece, and when moving forward, its front end surface forms a hole-shaped mold 8.
A pair of pin-shaped molds 1212' are fixed in close contact with each other at the lower center of the pin-shaped molds 12, 1.
The lower die device 1 for die casting is formed by drilling a pair of grooves 15, 15' on the front end surface of the die-casting die 2' to form a groove die 14 for forming the retaining ring 13, which are joined together when they abut.
6, and an upper recess 18 is provided on the lower surface at a location corresponding to the upper surface of the above-mentioned piece body 4 separately from this lower die device 16, and an upper piece body 19 is inserted into and removed from the upper recess 18. The upper piece 19 is fitted so as to be replaceable by operation, and a concave mold 20 matching the shape and size of the front surface of the finished product A is attached to the lower surface of the upper piece 19. A concave mold 20 is also provided on the mold surface of the concave mold 20 to form a vertical hole for forming a watermark hole. Upper mold device 22 for die casting, each provided with convex portions 21
When the lower mold device 16 and the upper mold device 22 are brought into the mold matching state, the outer circumferential surface of the opening edge of the concave mold 20 also forms a vertical convex portion for forming a hollow hole on the upper surface of the lower piece body 4. The top surfaces of the molds 21 are brought into close contact with the mold surfaces of the convex mold 6, respectively.

It should be noted that the explanation of the drive device, sprue, etc. of the above embodiment is the same as that of the conventional one, and will therefore be omitted.

[Effect]

Since the present invention has the above-described configuration, first, the movable lower molds 10, 10' are advanced to form the groove mold 14, and then the upper mold device 22 is lowered to form the groove mold 14.
A cavity 23 is formed by bringing 2 and the lower die device 16 into a mold-matching state, and then a die-casting melt is poured into the cavity 23 and is cooled and fixed, while the upper die device 22 is raised. Thereafter, the movable lower molds 10, 10' are set in a retracted state, and the molded product (finished product) is removed from the cavity 23 in this state.
That is, as is clear from the usage and drawings, the movement of the upper mold device 22 and the lower mold device 16 is achieved by integrally molding the button with the watermark pattern, which is lighter in weight by recessing the back surface and making the entire body thinner. This enables the integral molding without any interference.

〔Effect of the invention〕

As described above, the present invention is highly effective in completely providing a mold that makes it possible to integrally mold a lightweight button with a watermark pattern by recessing the back surface and making the entire body thinner. Moreover, the mold of the present invention has the effect of making it possible to mass produce watermark buttons and to reduce costs.

[Brief explanation of drawings]

The figures show an embodiment of a mold for manufacturing watermark buttons for clothing according to the present invention, in which Fig. 1 is a partially cutaway side view, Fig. 2 is a plan view of the lower die device, and Fig. 3 is a Figure 2 is a sectional view taken along line A-A, Figure 4 is an exploded perspective view of the main parts, Figure 5 is a perspective view of the finished product as seen from the front side,
FIG. 6 is a perspective view similarly seen from the back side. DESCRIPTION OF SYMBOLS 1... Mold base, 2... Fixed lower mold, 3... Lower recess, 4... Lower piece body, 5... Recessed part, 6...
Convex type, 7... Retaining ring standing part, 8... Hole type, 9
...Horizontal hole, 10,10'...Movable lower mold, 11...
Screw, 12, 12'...pin-shaped type, 13...stop ring,
14...Groove type, 15,15'...Concave groove, 16...
Lower mold device, 18... Upper recess, 19... Upper piece body, 20... Concave mold, 21... Convex portion, 22... Upper mold device, 23... Cavity, A... Finished product.

Claims (1)

[Claims] 1. A convex mold that forms a concave part on the back side of the finished product is integrally provided on the upper surface of the fixed lower mold, and a hole-shaped mold that forms a ring stopper stand on the finished product is installed in the center of this convex mold. The upper and lower ends of the mold are opened so as to pass through the upper and lower surfaces of the convex mold, and the fixed lower mold and the piece body are further opened with both ends open to both sides of the fixed lower mold and the upper surface of which is in contact with the lower surface of the hole-shaped mold. A hole is drilled and a pair of movable lower molds are provided on both sides of the fixed lower mold that move forward and backward toward the fixed lower mold, and the inside of the horizontal hole is integrated with both movable lower molds. A pair of pin-shaped molds are fixed, whose front end surfaces closely abut each other at the lower center of the hole-shaped mold when moving forward and backward, and when they collide with the front end surfaces of the pin-shaped mold, they come together and stop. a lower mold device configured by drilling a pair of grooves forming a groove mold for forming a ring;
On the lower surface, a concave mold matching the shape and size of the front surface of the finished product is provided at a location corresponding to the upper surface of the piece body, and the mold surface of this concave mold is provided with an upward and downward convex portion for forming a watermark hole, respectively. When the lower mold device and the upper mold device are put into the mold matching state, the outer circumferential surface of the opening edge of the concave mold also forms a vertical convexity on the top surface of the piece body for forming a watermark hole. A mold for manufacturing watermark buttons for clothing, characterized in that the top surfaces of the sections are in close contact with the mold surfaces of the convex mold.