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Press with eccentric crank transmission for upper moulding unit and operating method thereof

A technology of eccentric crank and transmission device, which is applied in the direction of material forming presses, presses, stamping machines, etc., and can solve the problems of low working speed, high energy consumption, and long cycle time

Inactive Publication Date: 2005-02-02
SMS DEMAG AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, hydraulic presses generally operate at lower speeds, i.e. longer cycle times, and consume significantly more energy than mechanical presses

Method used

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  • Press with eccentric crank transmission for upper moulding unit and operating method thereof
  • Press with eccentric crank transmission for upper moulding unit and operating method thereof
  • Press with eccentric crank transmission for upper moulding unit and operating method thereof

Examples

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Embodiment Construction

[0020] exist figure 1 The illustration in the figure relates to a schematic sectional view of a press according to the invention, wherein only the drive of the upper die unit 2 (that is, the upper hammer head of the press on which the upper die unit is mounted) is shown. The upper die unit 2 that fixes one or several upper dies according to the shape of the pressed product to be made is slidably installed on the frame 1 of the press. The pressed product is produced in a hollow cavity enclosed by a die 9 and a lower punch unit 8 firmly supported in the press frame 1, into which cavity the upper punch is pressed during pressing. A mechanical adjustment device 10 is expediently provided, by means of which the starting and end positions of the upper mold unit 2 are adjusted. The upper mold unit 2 is driven via a connecting rod 3 by means of a crankshaft 4 mounted rotatably in the machine frame 1 . When the crankshaft 4 rotates, an approximately sinusoidal speed change results fo...

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PUM

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Abstract

A press for pressing pulverulent materials, in particular metal powder, having an eccentric crank drive, which has at least one connecting rod and a crankshaft and a gearwheel which is connected thereto in a rotationally fixed manner, for driving an upper punch unit. It is possible to drive the gearwheel via at least one worm drive of at least one motor. An electronic control unit is also provided. In this press, the electronic control unit is designed for reversing operation of the crankshaft.

Description

technical field [0001] The invention relates to a press for pressing powdery substances, in particular metal powders, with at least one eccentric crank drive having a connecting rod and a crankshaft for driving an upper die unit, the invention also relates to making such How the press works. Background technique [0002] Mechanical powder presses have been used for many years in metal powder and cermet powder compaction technology for the production of powder compacts. These mechanical presses, usually in the form of eccentric presses or toggle presses, are characterized by high working speeds during the sinusoidal change in the die movement during the working cycle with a strongly progressive pressing force distribution. For the manufacture of particularly complex shaped parts, a powder press whose stamping die is driven by a hydraulic piston / cylinder system is preferred. In conjunction with a corresponding electronic control unit, the individual stamping dies can be opti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B15/00B22F3/03B30B1/26B30B1/28B30B11/02B30B15/14
CPCB30B1/28B30B1/266B30B11/02
Inventor 诺贝特·尼斯马蒂亚斯·霍尔特豪森贝恩德·霍恩尼古劳斯·霍彭坎普斯
Owner SMS DEMAG AG