A cutting knife pressing device

Abstract

A cutter cloth-pressing device comprises support frames, a cloth sliding plate, a moving plate, a material pressing support plate, a material pressing slide plate, and a drive mechanism. The moving plate is rotatably arranged on the support frames. The material pressing support plate and the material pressing slide plate are arranged above the moving plate and are connected with each other through an elastic connection mechanism. The drive mechanism drives the material pressing support plate and the material pressing slide plate to move up and down. The material pressing slide plate can move downwards to bump against the moving plate and act upon the moving plate through the elastic connection mechanism, thereby enabling the moving plate to overcome the resistance of an elastic resetting mechanism and to rotate to the horizontal position under the cloth pressing state. The material pressing slide plate can move upwards to be detached from the moving plate and enable the moving plate through the elastic resetting mechanism to rotate reversely to an inclined position matched with the cloth sliding plate. The cutter cloth-pressing device is simple in structure and capable of fully contacting with a needle plate plane of a spreading machine clamp to increase the contact area, thereby obtaining a better cloth grabbing effect. Under the cloth pressing state, the cloth on the moving plate is completely horizontal and thus is perpendicular to a cutter, so that the cutting effect is good.

Description

technical field [0001] The invention relates to a cloth stretching machine, in particular to a cutting knife and cloth pressing device of the cloth stretching machine. Background technique [0002] The cloth stretching machine is used to lay the roll of cloth on the machine table, and use the matching cutter to cut the flat cloth. In order to cooperate with the cutting knife for cutting, the cloth stretching machine includes a cutter and pressing device. After the fabric is pressed tightly by the cloth pressing device, the cutting operation is performed by the cutter. There are cloth pressing devices of various structures in the prior art, such as "A Cloth Pressing Device for Spreading Machine" disclosed in the Chinese utility model patent whose patent number is ZL200820152340.6 (authorized announcement number is CN 201288254 Y). 》, the cloth pressing device includes a left side plate and a right side plate, a cloth feeding roller is arranged between the left side board and...

AI Technical Summary

Problems solved by technology

Although the above-mentioned existing cloth pressing device has a relatively simple structure and is relatively convenient to operate, since the cloth guide plate is inclined, after the cloth is pressed by the cloth pressing mechanism, the cloth is also inclinedly distributed along the cloth guide plate, so that the cloth and the cutting The angles between the knives are not perpendicular to each other, which leads to poor cutting effect. In addition, the needle plate plane of the spreader jig cannot fully contact with the cloth, and the contact area is not large enough, resulting in poor cloth grasping effect

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