Preloading device and its control method

A control method and pre-pressing technology, which is applied to veneer presses, manufacturing tools, plywood presses, etc., can solve problems that are easy to cause work-related injuries, and achieve the effect of improving safety and avoiding accidental drops
CN103448109BActive Publication Date: 2015-11-04GREE ELECTRIC APPLIANCES INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCES INC
Publication Date
2015-11-04

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Abstract

The invention discloses a pre-pressing device and a control method thereof. The pre-pressing device comprises a controller, a support frame, a first cylinder, an upper module, a safe optical grating and a blocking mechanism, wherein the support frame is provided with a first workbench and a second workbench both fixedly arranged on the support frame; the first workbench is located above a second workbench; the first cylinder is arranged on the first workbench; the upper module is movably arranged between the first workbench and the second workbench along a vertical direction and is connected to the first cylinder; the safe optical grating is arranged on the support frame and is connected to the controller; the blocking mechanism is used for providing an upward stress to the upper module when the safe optical grating sends out a blocking signal. Through the pre-pressing device and the control method thereof, the problem that the pre-pressing device is easy to cause occupational injury under a pipeline gas cut-off condition in the prior art is solved, and the effect of improving the safety of the pre-pressing device is further realized.
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Description

technical field

[0001] The invention relates to a preloading device and a control method thereof. Background technique

[0002] The currently used pre-pressing tooling equipment is equipped with grating protection, that is, when people are operating the equipment, the grating is blocked, and the switch of the equipment is shielded at this time, and the control cylinder is converted from the action of pressing down to the action of stopping, so as to avoid accidental touch at this time. Touching the switch causes the accident that the equipment crushes the human body, that is, power-off protection. In the actual production process, there may be a sudden gas cut-off of the cylinder (there is no gas supply in the pipeline), and the upper module of the pre-pressing equipment is pressed down under its own gravity. If the human body is still operating, it will cause work-related injuries.

[0003] Aiming at the problem in the related art that the preloading device is likely to ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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