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Press system

A pressure system and pressure technology, applied in the field of reducing the cost of the entire pressure system, can solve the problems of increasing the price control panel size and power receiving capacity

Active Publication Date: 2019-08-06
AIDA ENG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the price, size of the control panel and power receiving capability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0075] figure 1 is a schematic configuration diagram showing a first embodiment of the pressure system according to the present invention.

[0076] figure 1 The illustrated press system 10 includes a die cushioning apparatus 160-1 and a hydraulic drive mode press 100-1. The die cushioning device 160-1 includes a hydraulic cylinder 130 serving as a first hydraulic cylinder, a servo motor 151 (and a hydraulic pump / motor 150 serving as a hydraulic pump / motor), etc., the servo motor 151 serving as a pressure adjusting mechanism , to adjust the pressure of the first pressure generating chamber (pressure generating chamber) 130 b which is the head-side hydraulic chamber of the hydraulic cylinder 130 .

[0077]

[0078] figure 1 The illustrated die cushioning device 160-1 is constructed with a Figure 21 Die cushioning apparatus 1-2 of Japanese Patent Application Laid-Open No. 2006-315074 shown is similar. The die cushioning device 160-1 includes a hydraulic cylinder 130, a ...

no. 2 example

[0120] figure 2 is a schematic configuration diagram showing a second embodiment of the pressure system according to the present invention.

[0121] figure 2 The pressure system 11 shown includes figure 1 Shown is a die cushioning apparatus 160-1 and a mechanical (crank) drive mode press 100-2.

[0122] figure 2 Press 100-2 shown with figure 1 The press 100-1 shown differs mainly in that the press 100-2 is provided with a mechanical drive unit which mechanically generates a pressure load in the slide 110 when the slide 110 is lowered, instead of figure 1 Hydraulic cylinders 117-1 and 117-2 of press 100-1 are shown. The mechanical driving unit includes a crankshaft 112, a connecting rod 103 connecting the crankshaft 112 and a slider 110, servomotors 106-1 and 106-2 serving as a crankshaft driving unit, and a reduction gear 101.

[0123] The rotational driving force is transmitted from the servomotors 106 - 1 and 106 - 2 to the crankshaft 112 through the reduction ge...

no. 3 example

[0141] Figure 4 is a schematic configuration diagram showing a third embodiment of the pressure system according to the present invention.

[0142] Figure 4 Pressure system 12 shown with figure 2 The pressure system 11 shown differs in that the pressure system 12 is provided with a hydraulic circuit Y surrounded by dashed lines, instead of figure 2 The hydraulic circuit (hydraulic circuit including the servo motor 151 and the hydraulic pump / motor 150 ) X of the pressure system 11 surrounded by the dotted line in . Note that in Figure 4 In , the same parts as those of the pressure system 11 are denoted by the same reference numerals, and a detailed description thereof will be omitted.

[0143] Figure 4 The hydraulic circuit Y of the pressure system 12 shown is provided with a servo valve 201 and a pressure accumulator 202 serving as a high pressure source.

[0144] The servo valve 201 is connected to the pressure generating chamber 130 b of the hydraulic cylinder 13...

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PUM

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Abstract

A press system providing excellent energy efficiency for a whole press system and capable of achieving low prices is provided. A die cushion apparatus 160-1 constituting a press system 10 supports a cushion pad 128, includes a hydraulic cylinder 130 which generates a die cushion load on the cushion pad 128 when a slide 110 of a press machine 100-1 descends, the press machine 100-1 includes a hydraulic cylinder 137 which generates part of a press load on the slide 110 when the slide 110 descends. The pressure generation chamber 130b of the hydraulic cylinder 130 for generating a die cushion load and the pressure generation chamber 137b of the hydraulic cylinder 137 for generating part of the press load can communicate with each other via pipes 152, 155 and a first logic valve 171 for a period during which the die cushion load acts.

Description

technical field [0001] The present invention relates to a pressure system, and more particularly, to a technique for reducing the cost of the entire pressure system. Background technique [0002] In recent years, presses driven by servo motors (so-called "servo presses") have become common on the market. Servo presses include a servo motor with a (relatively) large capacity proportional to the power that is matched to the press forming at any one time. This increases the price, size and power receiving capability of the control panel. [0003] Also, in the case where the die cushioning device for stretching is mounted on the servo press, the servo motor needs to drive the die cushioning device (servo die cushioning) in the same way as (or according to) the servo press. This type of die cushioning equipment includes a servo motor whose capacity is close to the power corresponding to press forming at any time. For example, the capacity of the servo motor is about 1 / 2 (to 2 / ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B1/34B30B15/28B30B15/22
CPCB30B1/34B30B15/28B30B15/22B30B15/161B30B1/265B21D24/14B30B15/163B21D24/02B30B15/16
Inventor 河野泰幸
Owner AIDA ENG LTD