Flexible material moving device and method and sewing device

Abstract

The invention provides a flexible material moving device and method and a sewing device, and belongs to the technical field of sewing. The problem that at present, the accuracy of the flexible material pricking depth of steel needles is controlled poorly is solved. The moving device comprises a hollow device body, a steel needle fixing base, a photoelectric sensing device and a control device, wherein multiple steel needles are arranged on the lower surface of the steel needle fixing base in a protruding mode and penetrate out of the bottom of the device body through needle holes to be used for pricking into a flexible material, an air seal upper cavity is formed by the upper surface of the steel needle fixing base and the device body in a defined mode and is connected with an air pump through an air pipe, and a lower cavity is formed by the lower surface of the steel needle fixing base and the device body in a defined mode and is communicated with the outside through the needle holes; the photoelectric sensing device comprises a sensor transmitting end, a sensor receiving end and a baffle; the control device comprises a controller, a solenoid valve installed on the air pump and the sensor receiving end. The moving device has the advantages of being low in cost and high in inapplicability, and the control accuracy of the steel needle pricking depth is high.

Description

technical field [0001] The invention belongs to the technical field of sewing, in particular to a moving device, a moving method and a sewing device for flexible materials. Background technique [0002] In the sewing process, the sewing machine mainly uses vacuum suction to grab the fabric at present. The vacuum suction is mainly for some airtight fabrics. For those breathable fabrics, most of them currently use the needle-prick grabbing method. [0003] For example, the published invention patent titled "An Operating Device, Operating Method and Sewing Device for Flexible Materials" with application publication number CN104562461A discloses an operating device for flexible materials, which includes a hollow device body; A needle fixing seat is movably arranged in the main body of the device; a plurality of steel needles protrude from the lower surface of the steel needle fixing seat, and each of the steel needles passes through the bottom of the main body of the device for ...

AI Technical Summary

Problems solved by technology

This solution adopts the needle-piercing grasping method, but the problem is that the depth of the steel needle piercing into the flexible material is controlled by the driving device driving the steel needle holder to move up and down, and the driving device does not collect the feedback of the depth of the steel needle piercing into the flexible material The function of quantity is controlled by experience alone, so the control accuracy of the penetration depth of the steel needle is not high

This scheme introduces the feedback amount of the actual position of the steel needle fixing seat to the air pump controller, that is, the feedback amount of the depth of the steel needle piercing into the flexible material, so that the control is more accurate, but there are still some problems: the restoring force of the elastic member acts as the needle The main driving force of the retraction, the elastic part is easy to deform after long-term use, and the deformation will cause the steel needle to not reset properly, thus reducing the precision of the steel needle penetration depth after control

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