JPH0539732U - Molding equipment for forging machine - Google Patents

Abstract

(57) [Summary] [Purpose] It is intended to significantly reduce noise generated during processing. [Structure] At least one portion of a die set upper plate 1 for mounting the upper die 2 and the lower die 4 on a press, a die set base plate 3 and a stripper plate 7 for stripping a work adhered to the upper die 2 is formed of a vibration absorbing material. Since noise can be reduced directly from the mold that is the noise source, an efficient noise reduction effect can be obtained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a die device for a forging machine with reduced noise.

[0002]

[Prior Art]

 Forging presses such as conventional blanking presses generate large noise during processing. Therefore, in the past, the link motion press was used to slow down the slide speed when the die comes into contact with the work, and the hydraulic press is used to process the work at a slower speed to reduce noise during processing. ing. Further, as disclosed in, for example, Japanese Patent Application Laid-Open No. 2-307700, there has been proposed one in which a noise at the time of processing is reduced by using a damping material for a part of the press.

[0003]

[Problems to be solved by the device]

 However, the method of slowing down the processing speed to reduce noise has poor productivity, and when the link motion press is used, the press itself is expensive, which causes a cost increase. In addition, when shearing is performed, the quality of the sheared surface deteriorates, and using a damping material for part of the press increases the cost of the press itself and reduces noise in parts other than the noise source. As a result, there were problems such as a small reduction effect. The present invention has been made in order to improve the above-mentioned conventional problems, and an object thereof is to provide a die device of a forging machine which reduces noise of the die itself which is a noise source.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention forms at least one part of a die set upper plate for mounting an upper die and a lower die on a press, a die set base plate, and a stripper plate for stripping a work attached to the upper die by a vibration absorbing material It was done.

[0005]

[Work]

 With the above-described configuration, noise can be reduced directly from the mold that is the noise generation source, so a higher noise reduction effect can be obtained.

[0006]

【Example】

An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a die device to be used by being attached to a forging machine (not shown). An upper die 2 attached to a lower surface of a die set upper plate 1 and a lower die attached to a die set base plate 3. It consists of type 4. The lower ends of the guide posts 5 are planted at the corners of the die set base plate 3, and the upper ends of the guide posts 5 are slidable from below to the guide bushes 6 provided on the die set upper plate 1. Has been inserted into. Further, a stripper plate 7 for stripping a work (not shown) attached to the upper die 2 after processing from the upper die 2 is attached to the upper surface of the lower die 4 by a fastener 9 via a washer 8 and The stripper plate 7, the die set upper plate 1 and the die set base plate 3 are made of a vibration absorbing material. As the vibration absorbing material, for example, a high hardness and high strength vibration absorbing alloy “Gentalloy F45” manufactured by Toyo Aluminum Co., Ltd. is used. The vibration absorbing alloy and damping capacity 100 × ^{10 -3,} it has a large damping capacity remarkably as compared with the damping capacity 4 × ^{10 -3} of S20C. Next, the operation will be described. In the mold apparatus configured as described above, the die set upper plate 1 is used by attaching it to the slide lower surface of the press (not shown) and the die set base plate 3 to the bolster 10 of the press. When stopped at the top dead center, the upper die 2 is also raised together with the die set upper plate 1. In this state, the work to be machined is placed on the lower mold 4 and the slide is lowered to punch the work between the upper mold 2 and the lower mold 4. Since the impact is absorbed and attenuated by the die set upper plate 1, the die set base plate 3 and the stripper plate 7 made of a vibration absorbing material, the noise during processing can be greatly reduced. Although the high hardness vibration absorbing alloy F45 is used as the vibration absorbing material in the above-mentioned embodiment, of course, another vibration absorbing material may be used as long as it has the same damping ability. Further, in the above-described embodiment, the case where the die is punched is described, but it can be applied to all the dies that can be used in the forging machine.

[Effect of the device]

 As described in detail above, this invention uses a vibration absorbing material for the die set and stripper plate that attach the die to the press to absorb vibrations and impacts during processing, thus reducing the noise generated during processing. It can be significantly reduced. In addition, since the noise is directly reduced from the mold that is the source of noise, it is generated during processing compared to the conventional one in which a damping material is attached to the conventional press to indirectly reduce noise. It is possible to reduce noise efficiently, and to eliminate problems such as the press becoming expensive.

[Brief description of drawings]

FIG. 1 is a sectional view of a mold device according to an embodiment of the present invention.

[Explanation of symbols]

1 ... Die set upper plate, 2 ... Upper mold, 3 ... Die set base plate, 4 ... Lower mold, 7 ... Stripper plate.

Claims (1)

[Scope of utility model registration request] 1. A die set upper plate 1 and a die set base plate 3 for attaching an upper die 2 and a lower die 4 to a press.
And a die device for a forging machine, in which at least one part of the stripper plate 7 for stripping the work attached to the upper die 2 is formed of a vibration absorbing material.