Die for forming needle bed insert blank

Abstract

The invention discloses a die for forming a needle bed insert blank and belongs to the technical field of dies. The die comprises an upper die mechanism and a lower die mechanism, wherein the upper die mechanism comprises an upper die plate frame, an upper die plate and insert male stamping dies; and the lower die mechanism comprises a lower die plate frame and a lower die plate. The die is characterized in that the upper die mechanism also comprises a pressing plate; the pressing plate is connected with one side of the upper die plate; die guiding holes matched with the insert male stamping dies are formed in the pressing plate opposite to the insert male stamping die; a group of thin steel strip guiding and limiting mechanisms for guiding and limiting thin steel strips are arranged on one side, which faces the pressing plate, of the lower die plate and on two sides of the lower die plate, which correspond to the cutting edge die cavities, in the length direction at intervals in a floating mode; and the thin steel strip guiding and limiting mechanisms are matched with the pressing plate. The die has the advantages that continuous stamping can be realized, so that the efficiency is improved, and the industrial expanded production requirement is met; the thin steel strips cannot deviate or cannot be unwarped, so that the stamping quality can be guaranteed; and the unqualified products cannot be manufactured, so that materials are saved, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to a mold for forming a needle bed blank body. Background technique [0002] As known to manufacturers of computerized flat knitting machines and manufacturers using computerized flat knitting machines to produce fabrics, the knitting needles of the knitting mechanism of the flat knitting machine extend out of the needle grooves of the needle bed when transferring and receiving needles. The distance is much longer than the distance extending out of the needle bed during normal knitting, so a needle bed insert is required on the needle bed, and the needle bed insert can protect the knitting needles and prevent the knitting needles from performing operations such as transfer and stitching. During the stitching process, tampering and / or deflection occur due to protruding from the needle bed, and finally avoid broken needles and missed stitches to ensure fabric quality. This...

AI Technical Summary

Problems solved by technology

[0004] The existing technology mainly has the following technical problems in the process of punching the needle bed insert body by a punching machine (press machine): one, the efficiency is low, because due to The thin steel strip has both good elasticity and flexibility, so it is difficult to continuously introduce the punching machine for continuous punching (it is called continuous feeding and continuous punching in the industry), so the lengthy thin steel strip is usually cut to an appropriate length in advance, and then paid Various stamping forms, which not only increase the workload of the pre-processing work on the thin steel strip, but also affect the efficiency; second, the defect rate and / or scrap rate are high, because when the thin steel strip is introduced into the lower die mechanism due to the lack of guiding tube bundles It is easy to deviate, and even the thin steel strip moves when the upper mold touches the thin steel strip on the lower mold, resulting in defective products or even scrapping; third, the material loss of the thin steel strip is large, resulting in high cost

[0005] In view of the deficiencies in the above-mentioned prior art, the applicant has made an in-depth search of patent literature and non-patent literature, but none of them has found any technical inspiration that can be used for reference

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