Production technique of concave type straw back cushion

Abstract

The invention relates to the technical field of manufacturing a concave grass bedding, in particular to a manufacturing technique of a concave grass bedding. The manufacture technique comprises the steps of paving, pressing and packing; lapping amount is set to be 200-350mm; working pressure is set to be 4-5 times the supporting pressure of the grass bedding; a pressure sensor is used for measuring and displaying the pressure applied to each part of the concave grass bedding and sending the pressure to a PLC controller; the pressure applied to each part of the concave grass bedding and depressing position thereof are measured; when the grass amount paved, pressure and position are adjusted to be equal to the values set, pressure application is stopped; after pressing, the steps of packing and perforation are carried out. A fabric cover is used for wrapping the concave grass bedding of which two end parts are paved with short grass additionally; the pressure sensor is arranged in a lower mould; a limit switch is arranged on a chassis; the sensor, a control panel and the PLC controller are connected with each other. The invention provides a concave grass bedding manufacturing technique with further improved technical parameters, which automatically detects the pressure and position, can ensure safe production and produce completely qualified products.

Description

technical field [0001] The invention relates to the technical field of making concave grass mats, in particular to a manufacturing process of concave grass mats. Background technique [0002] In recent years, as concave straw mats are widely used to support steel coils in railway transportation, various inventions and creations related to concave straw mats have emerged as the times require. Invention patent 03157348.7 discloses a processing method for concave grass pads used to support steel coils, which solved the problem that there was no safe and reliable method for producing concave grass pads at that time, including the steps of laying wadding, pressing, and binding. The root of the grass is facing outward, the long grass and short grass are layered alternately, the overlap of the grass in the wadding is ≥ 50mm, and the working pressure during pressing is greater than 3 times the bearing pressure of the grass mat. The quality of the produced concave grass mat is safe ...

Images