A mold changing device for the lower mold of the folding mechanism of the bag sticking machine

Abstract

The invention relates to a die-changing device for the lower mold of the hemming mechanism of the bag sticking machine. The lower mold of the hemming mechanism includes a connecting plate, and the front part of the connecting plate is fixedly connected to the lower mold for inserting into the bottom of the pocket cloth. At least one side of the connecting plate is provided with a There is a swing arm, the swing arm is fixedly connected with the variable die, and the connecting part has a fixed rotating mechanism, the swing arm is fixedly connected with the push rod of the power source, when the power source is in motion, the swing arm drives the variable die to swing around the rotating mechanism , when the bag is folded, the front part of the variable mold piece is opened outwards, and when the mold is demoulded, the front part of the variable mold piece is retracted inward, so that the lower mold can come out from under the pocket cloth. The invention provides a mold changing device for the lower mold of the hemming mechanism of the bag sticking machine, which can change the shape of the lower mold of the hemming mechanism. It comes out from the bottom of the pocket cloth; using the principle of leverage, powered by the power source, the swing arm and the mold changing piece rotate around the axis to realize the mold changing function. The structure is simple, the power source can be retracted freely, and there is no dead point.

Description

technical field [0001] The invention relates to a bag pasting machine, in particular to a mold changing device for a lower mold of a folding mechanism of a bag pasting machine, which belongs to the technical field of industrial sewing machines. Background technique [0002] Pocket patching machine is mainly used in the sewing of jeans and shirt pockets. Flat stitch sewing and tacking can be completed at one time. It is suitable for sewing various jeans back pockets, shirt pockets, and other irregularly shaped parts in garment processing. suture. [0003] During the working process of the bag sticking machine, the electromagnet first attracts the lower template, and the lower mold of the folding mechanism is inserted into the bottom of both sides of the pocket cloth to complete the folding action of the pocket cloth, and then when the folding mechanism is reset, the lower mold It needs to be pulled out from the bottom of the pocket cloth. When the bottom of the pocket is wid...

AI Technical Summary

Problems solved by technology

[0003] During the working process of the bag sticking machine, the electromagnet first attracts the lower template, and the lower mold of the folding mechanism is inserted into the bottom of both sides of the pocket cloth to complete the folding action of the pocket cloth, and then when the folding mechanism is reset, the lower mold It needs to be pulled out from the bottom of the pocket cloth. When the bottom of the pocket is wide and the top is narrow, the upper opening is small. After the lower mold is inserted and the folding action is completed, the lower mold cannot be pulled out. Therefore, the existing technology is suitable for pockets with a wide bottom and a narrow top Patch pockets are generally sewn by hand, resulting in reduced efficiency and high labor costs

[0004] For example, the Chinese patent document whose publication number is CN104908358A discloses a bag-folding auxiliary top-up mechanism for a bag-sticking machine. When the bag is folded, the bottom of the bag is wide and the top is narrow, so the lower die cannot be pulled out from the pocket.

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