JPH05285559A - Louver die - Google Patents

Abstract

PURPOSE:To perform upward and downward louver machinings at the same time by providing an upper die provided with a punch blade part for downward louver machining on the top end of a punching body and a lower die provided with a blade part for upward lover machining on the top end of a die. CONSTITUTION:The punch body 9 that is freely movably vertically is provided in a punch guide 7, and the upper die 3 is provided in which the punch blade part 21 to perform the downward louver machining is provided on the top end of the punch body 9. An ejector plate 37 energized upward is provided on the top of the die 33; and the blade part 43 is provided performing the upward louver machining is provided on the top of the die 33. The lower die 5 is constituted so that an ejector plate 41 holding a plate material W via a spring 39 mounted on the ejector plate 37 is provided on the die 33. Thus, the upward and downward louver machinings are performed at the same time with the upper die and the lower die.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver die capable of simultaneously performing louver processing on a plate material at the same time by a punch press such as a turret punch press.

[0002]

2. Description of the Related Art Conventional louver processing dies have been constructed so as to perform processing on either the upward side or the downward side.

[0003]

With the louver mold as described above, it is impossible to simultaneously perform louver processing on the plate material in the same shape on the upward side and the downward side, and even in the case of similar products, the product shape can be changed. There was a problem such as was needed.

The present invention has been made in view of the conventional problems. A louver mold that enables louver processing of a plate material at the same time in the vertical direction and does not require a change in product shape even in the case of a similar product is provided. It is intended to be provided.

[0005]

SUMMARY OF THE INVENTION According to the present invention, the above object is to provide a vertically movable punch body in a punch guide, and a punch blade tip portion for downward louver processing is provided at the tip of the punch body. The upper mold and the ejector plate that is urged upward on the upper part of the die,
A louver comprising a lower die provided with an edge part for performing an upward louver process on the upper part of the die, and an ejector attached to the ejector plate and holding a plate material through an ammunition machine. Achieved in the mold.

[0006]

According to the above-mentioned structure, this louver die has the upper die having the punch blade tip portion downwardly provided at the tip of the punch body which moves up and down in the punch guide, and the ejector plate on the upper portion of the die. The plate material is sandwiched between a lower die that is urged upward and a blade tip that performs upward processing is sandwiched, and the upper die is lowered to form a downward blade tip and an upward cutting blade portion of the lower die. Press the plate material with, upward and downward at the same time,
Downward louver processing is performed.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings.

1 and 2 are front views of a louver mold showing an embodiment of the present invention. FIG. 1 shows a state before the start of processing, and FIG. 2 shows a state during the processing. ..

With reference to FIG. 1, a louver mold 1 is mounted on mounting holes provided at appropriate intervals on the circumference of the upper and lower turrets of a turret punch press (not shown), for example. It is composed of 3 and 5. The upper mold 3 is provided with a vertically movable punch guide 7 mounted in a mounting hole of the upper turret, and a vertically movable punch body 9 is mounted in the punch guide 7.

A punch shank 11 is integrally provided on the punch body 9 with a bolt 13. A punch head 15 is mounted on the punch shank 11 with a plurality of bolts 17. A spring 19 is interposed between the upper portion 7U of the punch guide 7 and the punch head 15 to urge the punch body 9 upward.

The lower end of the axial center portion of the punch body 9 is punched by a punch tip 21 for downward louver processing.
(Blade edge part) is integrally provided. A stripper plate 23 is attached to the tip (lower end) of the punch guide 7 with a plurality of bolts 25. At the axial center of the stripper plate 23, a through hole 27 is formed so that the punch tip 21 can move up and down, and a slit 29 and a groove 31 are formed.

The lower die 5 is provided with a die 33 mounted on a lower turret, and an ejector plate 37 biased upward by a spring 35 is provided above the die 33. Moreover, the ejector 41 is provided between the die 33 and the ejector plate 37 so as to be urged upward by the urging forces of the four springs 39.

A die chip 43 protruding upward is integrally formed at the axial center of the die 33, and
The ejector plate 37 is formed with a through hole 45 for moving the die chip 43 upward. The through hole 45 is formed at a position corresponding to the slit 29 formed in the stripper plate 23.

A slit 47 and a groove 49 are formed on the upper surface of the stripper plate 37. The bolt 51 is inserted from below into a through hole formed in the die 33, and the tip of the bolt 51 is attached to the die 33. A sliding plate 53 is provided below the die 33,
A fixed plate 57 is provided below the sliding plate 53 via a spring 55.

A plurality of bolts 59 are inserted from below the sliding plate 53 and the fixed plate 57, and the tips of the bolts 59 are attached to the die 33. Therefore, the sliding plate 53 is biased upward by the biasing force of the spring 55, and the bolt 51 is provided on the upper surface of the sliding plate 53.
The head of the is abutted.

With the above configuration, when the plate material W to be processed is placed on the ejector plate 37 and the punch head 15 is hit by the vertical movement of, for example, a striker provided above the punch head 15, a spring (not shown) is pressed. The punch guide 7 descends against the urging force of the stripper and contacts the strip W on the stripper plate 37 to press the strip W.

Then, the punch body 9 is replaced by the spring 19
The stripper plate 11 further descends by descending against the urging force of. By the lowering of the stripper plate 11, the ejector plate 37 lowers against the biasing force of the spring 35. When the ejector plate 37 is lowered, the bolt 51 is lowered against the biasing force of the spring 55.

As a result, the plate material W is changed from the state of FIG. 1 to the state of FIG. 2 by the punch tip 21 and the ejector plate 3.
The plate material W is subjected to downward louver processing in cooperation with the slit 47 of FIG. 7, and the plate material W is subjected to upward louver processing in cooperation with the die chip 43 and the slit 29 of the stripper plate 23. That is, the plate material W is simultaneously subjected to downward and upward louver processing,
The louver product G as shown in (B) and (C) is obtained. Since the downward louver processing portion is in the state of being inserted into the ejector plate 37 after the forming processing, the downward louver processing is performed so that the ejector 41 is urged upward by the urging force of the spring 39 and is not caught when feeding material. They have a department.

After the upward and downward louver processing is performed on the plate material W at the same time, the state of FIG. 2 is returned to the state of FIG. 1 by raising the upper metal part 3. The groove 31 provided in the stripper plate 23 and the groove 49 provided in the ejector plate 37 have a function of storing the processed louver molded product without trouble when the louver processing is continuously performed on the plate material W. Is fulfilling.

In the conventional die, since the functions of the punch (male) and the die (female) were fixedly considered, it was impossible to perform the louver processing at the same time in the upper and lower directions. By changing the function so that it becomes a female at the moment when there is a punch in the middle operation, and becomes a male, it enables up and down louver processing on both upper and lower sides at the same time.

Although the present invention has been described in detail with reference to specific embodiments, the present invention is not limited to these, and various embodiments can be made within the scope of the present invention. Will be apparent to those skilled in the art.

[0022]

As can be understood from the above description, according to the louver die of the present invention, an upper die having a punch blade tip portion for performing downward louver processing at the tip of the punch body,
It is possible to perform upward and downward louver processing at the same time with a lower die that has a cutting edge portion that performs upward louver processing on the upper part of the die.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of a louver mold of the present invention, showing a state before processing is started.

FIG. 2 shows a state during processing in FIG.

FIG. 3 is a diagram showing a louver product, in which (A) is a plan view, (B) is a side view, and (C) is a front sectional view.

[Explanation of symbols]

 1 Louver die 3 Upper die 5 Lower die 7 Punch guide 9 Punch body 21 Punch tip (Blade edge) 23 Stripper plate 33 Die 37 Ejector plate 39 Spring 41 Ejector 43 Die tip 55 Spring

Claims (1)

[Claims] 1. An upper die provided with a vertically movable punch body in a punch guide, and a punch blade tip portion for performing downward louver processing at the tip of the punch body, and an upwardly biased die. Providing an ejector plate,
The die is provided with a blade tip portion for performing an upward louver process, is attached to the ejector plate, and is configured with a lower die provided with an ejector for holding a plate material via an ammunition machine. Louver mold.