JP3089716U - ID blade forming mold - Google Patents

Abstract

(57) [Summary] (With correction) [Problem] To provide an ID plate forming mold capable of accurately forming dimensional accuracy. A punch plate fixed to a shank plate, a die having a lower inner diameter corresponding to an outer diameter of an ID plate, a large hole punch provided concentrically and corresponding to a center hole of an ID plate, and elastically supported. An upper die A comprising a knockout 5 that engages with the die and a large number of small hole punches 14 embedded on the outer periphery of the punch plate, the lower surface of which forms a continuous plane with the knockout engaged with the die; A large hole 9 for scrap discharge at the center, which is disposed to face the upper mold,
A large number of scrap discharge holes 15 on the outer concentric circle,
And a stripper 12 having a resiliently supported stripper 12 having a punch 10 having an upper surface facing the knockout and an upper surface facing the lower surface of the upper die, the upper surface constituting a continuous plane. Consists of a lower mold.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 According to the present invention, an ID blade can be formed by punching a large number of small holes along an inner diameter, an outer diameter, and an outer circumference (outer diameter) at a time from a metal plate material such as stainless steel having a plane having a required thickness and width. The present invention relates to a mold for forming an ID blade which is made possible.

[0002]

[Prior art]

 Conventionally, to form an ID blade, usually, dozens of metal plates, such as stainless steel, having a flat surface of a required thickness and width are stacked in a machining center, fixed in a sandwich shape, and then drilled at the center. The production of many small holes along the outer diameter and outer circumference was performed in a single cutting process.

[0003] The machining with the above-mentioned machining center can produce dozens of molded products in one process. However, it takes about half a day to set up before machining, and in order to achieve dimensional accuracy, rough machining, semi-finishing, and finishing are required. Therefore, there are drawbacks such as that it takes a lot of labor and time for the work procedure and the work, such as the processing time of about three days.

[0004]

[Problems to be solved by the invention]

 Therefore, the present invention provides an efficient ID blade that can form a single ID blade in a single punching process without deteriorating the dimensional accuracy of its entire shape, and can significantly reduce the processing time. It is intended to obtain a forming die.

[0005]

[Means for Solving the Problems]

 The present invention has been made in view of the above point of view, and has a shank plate associated with an operation mechanism, a punch plate integrally attached below the shank plate, and an integrated below the punch plate. A die having a lower surface inner diameter corresponding to the outer diameter of the ID blade, a large hole punch having a diameter corresponding to the center hole diameter of the ID blade at the center thereof, and a space between the die and the large hole punch attached to the die. A knockout that is resiliently supported slidably in the vertical direction and stops engaging with the die at a predetermined position, and penetrates an opposing hole that is embedded in the circumference of the punch plate and is opened in the knockout. When the knockout is engaged with the die, the lower surface of each of the die, the large hole punch, the knockout, and the small hole punch is one. An upper die configured to form a continuous flat surface, a large scrap discharging hole in the center and a number of small scrap discharging holes on a predetermined concentric circle outside the central hole, which are installed at positions facing the upper die. A punch fixed to an upper side of the die plate and having an upper surface facing the lower surface of the knockout; and an upper die that is slidably fitted to the outer periphery of the punch in a vertical direction. A resiliently supported stripper having an upper surface opposed to a lower surface of the punch, a large hole for dropping a scrap into which the large hole punch slides forward and backward at the center thereof, and a small hole punch; And a scrap dropping hole communicating with the scrap discharging hole is opened, and under normal conditions, the upper surfaces of the punch and the stripper constitute one continuous plane. The ID blade forming mold made of a made the lower mold as it is intended to provide.

[0006]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of a mold according to an embodiment of the present invention before starting work, FIG. 2 is a cross-sectional view of a main part showing a state at the time of the work, and FIG. FIG. 4 is a plan view showing an ID blade formed by the same mold.

A punch plate 2 having a required size is integrally attached to a lower side of the shank plate 1 associated with the operation mechanism. On the lower side of the punch plate 2, a die 3 whose inner surface on the lower surface corresponds to the outer diameter of the ID blade 20 on the outer periphery and a large hole punch whose diameter corresponds to the center hole diameter of the ID blade 20 at the center thereof 4 are integrally attached. In the space between the die 3 and the large hole punch 4, the vertically slidable knockout 5 is configured to stop engaging with the die 3 at a predetermined position so as not to deviate downward. I have. Above the knockout 5, a lower end of a spring 7 buried in a hole 6 formed at a predetermined position of the punch plate 2 abuts to constantly press the knockout 5 downward. A number of small hole punches 14 are embedded in the punch plate 2 along a predetermined circumference at a required interval, and a lower portion of the small hole punch 14 is opened at a corresponding portion of the knockout 5. Is inserted through the opposed hole 17 so as to be able to slide forward and backward. When the knockout 5 is engaged with the die 3, the lower surfaces of the die 3, the large hole punch 4, the knockout 5, and the small hole punch 14 constitute one continuous plane. And the upper mold A.

On the other hand, a die plate 8 is installed at a position facing the upper die A, and a large hole 9 for discharging scrap is formed in the center of the die plate 8, and a large number of holes are formed on a predetermined concentric circle on the outside thereof. Are formed. A punch 10 having an upper surface facing the lower surface of the knockout 5 is fixed to the upper side of the die plate 8. A stripper 12 having an upper surface facing the lower surface of the upper die 3 is slidably fitted on the outer periphery of the punch 10 in a vertical direction, and the stripper 12 is connected between the lower surface and the upper surface of the die plate 8. It is resiliently supported by a spring 13 interposed therebetween. In the punch 10, the large hole punch 4 advances and retreats to the center, and the scrap dropping large hole 11 where the scrap falls and the small hole punch 14 advances and retreats into the scrap discharging small hole 16. A small hole 15 for scrap falling which communicates with the small hole is formed. In a normal state, the upper surfaces of the punch 10 and the stripper 12 are configured to form one continuous plane. The mold of the present invention comprises the upper mold A and the lower mold B.

Next, an example in the case of using the mold configured as described above will be described. At the initial position of the mold before the start of the operation shown in FIG. 1, a metal plate material P such as stainless steel having a flat surface of a required thickness and width is placed on the upper surface of the lower mold B, and the operation switch is set there. Then, the upper die A is pushed downward with a predetermined pressure.

Then, as shown in FIG. 2, the continuous plane of the upper die A comes into contact with the upper surface of the metal plate material P to be processed. Then, when the upper die A is continuously pushed downward, the metal plate material P is firmly held by the fixed punch 10 of the lower die B and the knockout 5 of the upper die A. As the die A is pressed, the die 3 moves downward against the resilience of the stripper 12 of the lower die B, and at the same time, the die 3 is sheared by the downward movement of the large-hole punch 4 and the small-hole punch 14, respectively. P is cut along the outer periphery of the ID blade 20 and at the same time, a large hole at the center of the ID blade 20 and a number of small holes are cut off along a predetermined concentric circle on the outside thereof. Is formed.

The hole scraps sheared by the downward movement of the large hole punch 4 and the small hole punch 14 are discharged from the large hole 11 for scrap drop and the small hole 15 for scrap drop, respectively, with the large hole 9 for scrap discharge and the scrap discharge. It is discharged to the outside through the small holes 16.

After the above-described shearing step is completed, the upper die A is moved upward to return to the initial position, as shown in FIG. Therefore, the outer edge scrap left on the upper surface of the lower die B stripper 12 is eliminated. Thus, the ID blade 20 as a product is left on the upper surface of the punch 10 of the lower die B, and is carefully transferred to a predetermined place.

Thereafter, the same operation is repeated to form the ID blade 20.

[0014]

[Effect of the invention]

 As is apparent from the above description, according to the present invention, one ID blade can be formed with extremely high dimensional accuracy and surely by one press working, and can be formed efficiently. It is.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a mold according to an embodiment of the present invention, showing a state before starting work.

FIG. 2 is a cross-sectional view of a main part showing a state of the mold according to the embodiment of the present invention during operation.

FIG. 3 is a cross-sectional view of a main part showing a state in which the mold returns to an initial position after the operation of the mold according to the embodiment of the present invention is completed.

FIG. 4 is a plan view showing an ID blade formed by a mold according to an embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shank plate 2 Punch plate 3 Die 4 Large hole punch 5 Knockout 6 Hole 7 Spring 8 Die plate 9 Large hole for scrap discharge 10 Punch 11 Large hole for scrap fall 12 Stripper 13 Spring 14 Small hole punch 15 Small hole for scrap fall 16 Small hole for scrap discharge 17 Opposite hole A Upper die B Lower die P Metal plate 20 ID blade

Claims (1)

[Utility model registration claims] 1. A shank plate 1 associated with an operation mechanism, a punch plate 2 integrally attached to a lower side of the shank plate 1, and an inner surface of a lower surface integrally attached to a lower side of the punch plate 2. A die 3 corresponding to the outer diameter of the ID blade 20, a large hole punch 4 whose diameter at the center corresponds to the center hole diameter of the ID blade 20, and a vertical direction in the space between the die 3 and the large hole punch 4. A knockout 5 that is slidably resiliently supported and stops engaging with the die 3 at a predetermined position, and an opposing hole 17 that is embedded in the circumference of the punch plate 2 and that is punched in the knockout 5. When the knockout 5 is engaged with the die 3, the lower surfaces of the die 3, the large hole punch 4, the knockout 5, and the small hole punch 14 Sun An upper die A configured to form a continuous plane with the upper die A; a large scrap discharging hole 9 at a central portion, and a large number of scraps on a predetermined concentric circle outside the upper die 9 installed at a position facing the upper die A; Die plate 8 having discharge small holes 16
A punch 10 fixed to the upper side of the die plate 8 and having an upper surface facing the lower surface of the knockout 5; and the upper die is fitted to the outer periphery of the punch 10 so as to be vertically slidable. A resiliently supported stripper 12 having an upper surface opposed to the lower surface of the punch 3 and a large hole 11 for dropping a scrap into which the large hole punch 4 slides forward and backward to drop the scrap at the center thereof. The small hole punch 1
4 advances and retreats and a scrap dropping small hole 15 communicating with the scrap discharging small hole 16 is opened.
The upper surface of each of the punch 10 and the stripper 12 is composed of a lower die B configured to form one continuous plane.