JPS604029A - Method of expressing pattern on surface of fixing member made of synthetic resin - Google Patents

Abstract

PURPOSE:To enable a pattern to be impressed on the surface of the fixing member of a button simultaneously with the caulking of the button by arranging patterns on the bottom force for caulking the button. CONSTITUTION:A bulged portion 18 is formed at the outer periphery of a button force 11, the lower part there of is joined to a leg part 19, a receiving tray 20 like a plate is formed on its upper surface and an inserting hole 21 is drilled in its center. The impressing rod 23 on which upper surface the unevenness part 22 having the expression such as letters, marks, figures or patterns are engraved, is inserted into an inserting hole 21, and a female screw 24 part is tapped in its lower part. The screw rod 25 for pushing up the impressing rod 23, is screw fixed to the female screw 24 part. The unevenness part 22 of the impressing rod 23 is caused to project a little from the receiving surface 20. Because the unevenness parts 22, 22a for patterns are arranged on the receiving surface 20 of the bottom force 11, the patterns, etc. may be impressed simultaneously with the caulking operation of a button, and the patterns are not damaged.

Description

[Detailed description of the invention] It is related to the method of adding etc.

Conventionally, the pattern on the front or back side of synthetic resin copper was created by applying the pattern inside a button molding die and adding the pattern during button molding. For this reason, even if the button shape was the same, a mold had to be made depending on the type of pattern, which increased the cost of the entire mold, which was especially expensive when manufacturing buttons in small lots. .

Therefore, the inventor of the present invention conducted various studies on methods for adding patterns, etc. to the surface of a synthetic resin copper stopper member, and as a result, the present invention was completed.

That is, in the present invention, a pattern or the like is applied to the lower mold for button caulking, and a pattern or the like is applied to the surface of the button stopper simultaneously with the button caulking.

The button crimping device used in the method of the present invention will be explained.

As shown in FIG. 1, the button caulking device is provided with a handle pivot attachment part 2 at the right end of a machine frame 1, a handle 4 having an actuating cylindrical part 3 is pivotally attached to this handle pivot attachment part 2, and the handle A pressing rod 5 pressed by the actuating cylindrical portion 3 is provided on the left side of the pivoting portion 3 so as to be slidable up and down, and a spring 6 that always pushes up this pressing rod 5 upward is screwed onto the pressing rod 5. Then, screw the stopper 8 that holds the upper die 7 to the lower end of the press rod 5, fix the machine frame l to the left side of the base 9, and attach the press rod 5 at the right end of the base 9. A vertical through hole 10 is bored at a position facing the vertical through hole 10, and the leg part 19 of the lower mold 11 is inserted into the upper part of this vertical through hole 10, and the supporting disk 1 is inserted from the lower part.
The cylindrical portion of No. 2 is inserted into the lower surface of the support disk 12 and the holding plate 1
3, the lower end of this presser plate 13 is supported on the right side of a support arm 15 whose one end is fixed to the left lower surface of the base 9, and a port 16 is inserted through the support arm 15. A gap 17 is formed between the protruding part 18 of the lower mold 11 and the upper surface of the base 9 by screwing and pressing upward by the elastic force of the spring 14 on the lower surface of the presser plate 13. It is.

As shown in FIGS. 2 to 5, the lower mold 11 has a protruding part 18 formed on the outer periphery of the upper part, and a leg part 19 with a slightly smaller diameter is connected to the lower part of the protruding part 18. An engraved rod 23 is formed with a dish-shaped receiving surface 20, an insertion hole 21 is bored in the center of the receiving surface 20, and an uneven part 22 expressing characters, symbols, figures, patterns, etc. is engraved on the upper surface. Insert the insertion hole 21 into the insertion hole 21.
A female threaded portion 24 is carved below the female threaded portion 24, and a screw rod 25 for pushing up the stamped rod 23 is screwed into the female threaded portion 24.
The concave and convex portions 22 of the rod 23 are made to protrude even further.

In addition, uneven parts expressing characters, symbols, figures, patterns, etc.
In the above explanation, the example using the stamped rod 23 was explained, but
As shown in FIG. 6, it is also possible to use a structure in which the concavo-convex portion 22a is directly formed on the receiving surface 20 of the lower mold 11 without using the stamping rod 23 or the screw rod 25.

As shown in FIG. 7, the support disk 12 has a cylindrical portion 32 which is fitted into the lower part of the vertical through hole 10 of the base 9 so as to be slidable up and down, and a jaw portion 33 having a larger diameter than the cylindrical portion 32 that protrudes from the cylindrical portion 32. Spring 1
4, the jaw portion 33 is constantly pushed upward, and the lower mold 11 in contact with the cylindrical portion 32 is also constantly pushed upward, so that the overhang portion 18 of the lower mold 11 and the upper surface of the base 9 are This is to form a gap 17 therebetween.

Note that the stop member 28 may be made of synthetic resin such as polyacetal, polypropylene, ABS resin, etc., and the type of synthetic resin is not limited.

Next, the method of the present invention will be explained using the button crimping device described above. ! The female member 27 of the female button 26 or the male member 27A of the male button 26A made of synthetic resin, which has been molded in advance, is attached to the upper mold 7, and the stop member 28 of the female button 26 or the male button 26A is attached to the leg. Place it on the receiving surface 20 of the lower mold 11 with the end 29 facing upward.

To explain the case where the female member 27 and the stopper member 28 are caulked together as shown in FIG. The actuating cylindrical part 3 of 4 presses down the pressing rod 5 against the spring 6, and the cloth 34 presses down the leg part 2 of the female member 27 and the stop member 28.
9, and if you push down the handle 4 further,
The tip of the leg portion 29 of the stopper member 28 breaks through the cloth 34 and comes into contact with the upper mold surface 31 of the upper mold 7.

When the handle 4 is continuously pushed down, the legs 29 of the stop member 28 are caulked, and at the same time, the surface of the seat plate 30 of the stop member 28 is
It is pressed by the concavo-convex portion 22 of the lower mold 11, and at the same time as it is caulked, a desired pattern or the like is engraved on the surface of the stopper member 28, resulting in a state as shown in FIG.

As described above, in the method of the present invention, since the uneven portion 22.22a for a pattern is provided on the receiving surface 20 of the lower mold 11, a pattern etc. can be engraved at the same time as the button is caulked. The pattern is not damaged, unlike when caulking a button that has a pattern on it in advance. In addition, since the producer mark can be engraved at the same time as the caulking process, there is no need for the process of engraving the mark.
It is economical.

The lower mold 1 on which the engraved rod 23 of the lower mold 11 or a pattern, etc. is formed
Since the pattern, etc. can be changed by simply changing 1 itself, it is easy to change the pattern, etc., and small lots can also be manufactured, the mold can be made cheap, and the finished product is also cheap. can do.

Since the pattern is engraved at the same time as the caulking process, there is no damage to the pattern or caulking marks on the surface of the button, resulting in an elegant product.

[Brief Description of the Drawings] Fig. 1 is a partially cutaway sectional view of a button crimping device used in the method of the present invention, Fig. 2 is an enlarged sectional view of a lower mold used in the device, - Fig. 3 Figure 4 is an enlarged cross-sectional view of the stamping rod that makes up the lower mold, and Figure 4 is an enlarged front view of the screw punch that makes up the lower mold.
Fig. 5 is an enlarged plan view of the lower mold, Fig. 6 is an enlarged sectional view of the lower mold of another embodiment, Fig. 7 is an enlarged sectional view of the main part of the same device, and Fig. 8 is the state in use. 9 is a sectional view of the male button in the attached state, FIG. It is a front view of a male member. 1. Fist...Machine frame 2..φ handle pivot portion 3.. Operating cylindrical portion 4-.. Handle 5.. Fighting press rod 6. Fighting...
Spring 7... Upper mold 8... Stopper 9... φ... Base 10... Fist vertical through hole 11... Lower mold 12... Supporting disc 13... Holding plate 14... Spring 15... Support arm 16... 1111 port 17... Gap 18... Overhanging part 19. 11φ leg part 20... Receiving surface 21, meeting, insertion hole 22... Uneven part 23... Engraved rod 24... Female threaded part 25, meeting, screw punch 26φΦφ female button 26A... male button 27φ... female member 27A @ male member 28... stop member 29 fist... leg 30. ...Seat plate part 31...Upper mold surface 32...Cylindrical part 33, e, jaw part 34...1 person overseas Fig. 1 3: : 20 7 2 7 Fig. 2 □5゜3rd Figure 7 Figure g

Claims (1)

[Claims] An uneven part 22 such as a pattern is provided on the receiving surface 20 of the lower mold 11, the surface of the stop member 28 is placed on the receiving surface 20, and the female member 27 or male member 27A attached to the upper mold 7 is placed on the stop member 28. legs 29 of
When fitting and pressing, the concave and convex portion 22 protruding from the receiving surface 20 of the lower mold 11 engages and presses at the same time as the stop member 2 made of synthetic resin.
How to express a pattern on the surface of 8.