Transmitting device for die set height of closed press machine

Abstract

The invention discloses a die-loading height signaling device for a closed press, which belongs to the field of presses and includes a motor and a worm. A driven shaft is provided at one end of the worm, and a coupling is provided between the worm and the driven shaft. There is a support seat on the machine to support the driven shaft, which can play a shock absorption effect. There is a chain transmission mechanism between the driven shaft and the motor. The motor drives the driven sprocket on the driven shaft to rotate through the driving sprocket and the chain. The side of the inventive worm connected with the coupling is provided with a direction-changing main sprocket, and the direction-changing main sprocket is connected with a direction-changing slave sprocket through a direction-changing chain, and a signal-transmitting device is connected with a direction-changing slave sprocket. An encoder is connected, and the present invention utilizes the above-mentioned direction-changing sprocket transmission mechanism to eliminate the axial force of the encoder and improve the service life of the encoder. Moreover, the above-mentioned structure not only makes reasonable use of space, but because the axial variation there is affected by the coupling The change of the impact of the shaft device and the support seat is small, and the deformation of the worm is small, which avoids the transmission error of the direction-changing sprocket transmission mechanism.

Description

technical field [0001] The invention relates to the field of presses, in particular to a die-loading height signaling device for a closed press. Background technique [0002] The measurement of the mold height of the closed mechanical press has basically eliminated the mechanical display, and the encoder is used for detection and data exchange with the press control system, which is widely used. [0003] Previously, the measuring encoder was installed at the shaft end of the worm gear, and was directly connected to the worm gear shaft through a coupling, that is, the axial installation method. However, due to the axial force transmission of the worm during worm gear transmission, it is easy to cause the encoder to be damaged due to excessive axial force during use. Therefore, in order to protect the encoder, strict requirements are put forward for the quality of the coupling. However, during the process of use, it was found that the replacement of the coupling more seriousl...

AI Technical Summary

Problems solved by technology

However, due to the axial force transmission of the worm during worm gear transmission, it is easy to cause the encoder to be damaged due to excessive axial force during use. Therefore, in order to protect the encoder, strict requirements are put forward for the quality of the coupling. However, during the process of use, it was found that the replacement of the coupling more seriously affected the production efficiency

[0004] Due to the constraints of the installation position, it is impossible to use a structure that uses gears to change the direction of the shaft end; use a toothed transmission belt that does not have strict requirements on the axial direction, and because the height of the mold is adjusted very frequently, its life is low and it is easy to wear and the tooth shape The transmission signal error will be too large due to the slipping of the belt due to oil stains. The most important thing is that the worm will deform during use, and the deformation size will seriously affect the accuracy of its transmission signal.

[0005] Due to the above defects, the user cannot accurately and automatically adjust the height of the mold when using it due to inaccurate detection signals; it needs to be adjusted manually again, resulting in difficult operation and use by the operator, and high maintenance costs, and due to the damage of the encoder , so that the height of the mold can not be measured correctly, resulting in a series of bad results

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