DE202009007744U1 - Damper for forming presses in the form of a hollow body - Google Patents

Abstract

Damper (6) for forming presses in the form of a hollow body, which is produced in one piece from elastic material, characterized by the production of thermoplastic elastomer (TPE).

Description

The The invention relates to a damper for forming presses, the one-piece made of elastic material.

The previously used damper consist of rubber or polyurethane. At high pressures and / or fast pressing processes are enough known damper no longer the requirements. So z. B. a break of the material can not be excluded.

Of the Invention is based on the object, a damper for the indicated use train so that at higher damping a much higher one Lifespan is achievable.

These The object is achieved by the Production of the damper made of thermoplastic elastomer (TPE). In an embodiment of the invention has the damper inside a hollow shape, which is formed on the outer diameter bellows.

advantageously, the force-displacement characteristic has a hysteresis with high energy absorption on. Conveniently, The upper limit and the lower limit of the damper are parallel to each other, wherein the upper and the lower boundary of the damper at right angles extend to the vertical center axis.

One damper According to the invention has a much longer life and higher elasticity. Besides that is reduces the risk of breakage to a minimum and increases damping. at same power results in a higher energy intake and a higher Efficiency.

One embodiment The invention is illustrated in the drawing and will be described below described in more detail. Show it:

1 a view of a forming press;

2 a plan view of a damper;

3 a section along line AA the 2 and

4 Force-displacement curve for thermoplastic elastomer dampers compared to rubber.

The forming press has guide columns 1 with a tool lower part 2 and a tool shell 3 on. About screws 4 is the hold-down 5 led, with the hold-down 5 the shock absorbers 6 assigned.

The dampers 6 consist of thermoplastic elastomer (TPE), have inside a mold and outside a bellows-like contour. The upper limit 7 and the lower limit 8th of the damper 6 run parallel to each other. The upper and lower limits 7 ; 8th are perpendicular to the vertical central axis 9 ,

As 4 it can be seen, is the efficiency of a damper 6 made of thermoplastic elastomer (TPE) compared to a damper made of rubber almost twice as large. The characteristic curve of the elastomer damper corresponds in the essential parameters (D1, D2, maximum force) to those of the rubber buffers. The elastomer curves were from a damper 6 recorded with an outer diameter D1 and an inner diameter D2 at a height h.

1

guide columns

2

Tool part

3

Upper die

4

screw (Guide column)

5

Stripper plate

6

Damper off TPE

7

upper limit of 6

8th

lower limit of 6

9

Central axis of 6

D1

Outside diameter of 6

D2

Inside diameter of 6

Claims (6)

Damper ( 6 ) for forming presses in the form of a hollow body, which is made in one piece from elastic material, characterized by the production of thermoplastic elastomer (TPE). damper according to claim 1, characterized by an inner mold, the on the outside diameter is formed bellows. damper according to claim 1 or 2, characterized in that the force-path course is progressive. damper according to one of the claims 1 to 3, characterized in that the force-displacement characteristic a Has hysteresis with high energy absorption. Damper according to one of claims 1 to 4, characterized in that the upper limit ( 7 ) and the lower limit ( 8th ) of the damper ( 6 ) parallel to each other. Damper according to claim 5, characterized in that the upper and lower limit ( 7 ; 8th ) of the damper ( 6 ) at right angles to the perpendicular central axis ( 9 ).