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Deep drawing tool and deep drawing process for deep drawing blanks

A deep-drawing and tooling technology, applied in the field of deep-drawing tools, can solve the problems of high compressed air manufacturing cost, high compressed air consumption, high noise, etc., and achieve the effect of avoiding cost

Active Publication Date: 2018-06-08
RAINER NAROSKA VERPACKUNGSMASCHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The consumption of compressed air is considerable and the production costs of the resulting compressed air are also considerable
Another disadvantage is that it is very noisy when venting the chamber, because the compressed air exits the chamber accompanied by a crackling sound
Necessary sound-absorbing systems for labor protection lead to more costs

Method used

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  • Deep drawing tool and deep drawing process for deep drawing blanks
  • Deep drawing tool and deep drawing process for deep drawing blanks
  • Deep drawing tool and deep drawing process for deep drawing blanks

Examples

Experimental program
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Effect test

Embodiment Construction

[0032] exist Figures 1a to 1c A deep-drawing tool for deep-drawing blanks stamped from painted or coated sheet metal is depicted in . The deep drawing tool is designated overall by the reference number 10 and has a drawing bell 12 depicted in a sectional view and a drawing core 14 through which the drawing bell 12 is drawn downwards in direction S during deep drawing stretch. The direction S here represents a downward movement towards the lower dead center of the tension bell, which can be driven by a crankshaft drive not shown in detail and can typically, but not exclusively, perform a sinusoidal forward and backward movement, during which Tensile core 14 remains stationary.

[0033]Below the edge 16 of the stretch bell 12, an anti-wrinkle clamp 18 is arranged around the stretch core 14 and can be moved up and down. The anti-wrinkle jig 18 is located on the anti-wrinkle jig rod 20 , and the bottom end of the anti-wrinkle jig rod is connected with a piston 22 embedded in a...

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Abstract

Deep drawing tool (10) and process for deep drawing blanks (32), which are punched out of sheet metal that is painted or coated with film material, in order to obtain flangeless formed pieces, the deep drawing tool (10) comprising a drawing bell (12), a drawing core (14), a blank holder (18), and a die cushion for applying a spring force to the blank holder (18) using force transmission means (20,22), characterized by a drive unit which, once the drawing bell (12) has reached a predefined position in its downward movement, drives the force transmission means (20, 22) to perform a movement preceding the movement of the drawing bell (12).

Description

technical field [0001] The invention relates to a deep-drawing tool for deep-drawing blanks stamped from painted or coated sheet metal, according to the preamble of claim 1 and a corresponding method in order to obtain flange-free shaped parts. Background technique [0002] Such deep-drawing tools are used in particular for the production of container lids. The blank is stamped from sheet metal and deep drawn in a deep drawing tool to obtain a pan-like shape. The deep drawing tool consists of a drawing bell and a drawing core around which the drawing bell moves down to form a pot-shaped form. The term "downward movement" as used in the present invention here and below is not restricted to a specific spatial direction, but rather refers to the movement towards the lower dead center of the drawing bell during the deep-drawing movement. In fact, this term coincides with the conventional arrangement in deep drawing machines in which the drawing bell is lowered from above onto ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D24/10B21D22/22B21D24/12B21D24/14
CPCB21D22/22B21D24/10B21D24/12B21D24/14
Inventor 马库斯·纳罗斯卡约阿希姆·拉赫尼特
Owner RAINER NAROSKA VERPACKUNGSMASCHEN
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