Jacquard electromagnet assembly with two injection moulding structure and manufacturing method of jacquard electromagnet assembly

Abstract

The invention discloses a jacquard electromagnet assembly with a two injection moulding structure. The assembly comprises an iron core, and a contact copper sheet and a coil, which are connected to a circuit board, wherein the iron core is externally provided with a wound frame via injection moulding; the coil is wound round the wound frame arranged outside the iron steel; the contact copper sheet is arranged at a far iron core side of the wound frame; the iron core extends from two sides of the middle of the wound frame and forms a suction head matching a suction end of an iron hook; and the coil is externally provided with an electromagnet housing through secondary injection moulding. The electromagnet housing coats the suction head to form a cushion protected injection body. The assembly has advantages that: the assembly is simple in structure and has an effective cushion protection function during suction; and the service life of an electromagnet is improved. The electromagnet assembly provided in the invention is manufactured through two injection moulding technique; the wound frame is manufactured via primary injection moulding; the electromagnet housing and the cushion protected injection body are manufactured via secondary injection moulding; the method is reasonable; and the technique is simple.

Description

technical field [0001] The invention relates to the technical field of jacquard machine manufacture, in particular to a jacquard machine electromagnet assembly with double injection molding structure and a manufacturing method thereof. Background technique [0002] Jacquard machine electromagnet assembly is used on electronic jacquard machine, it converts the electrical signal representing the fabric pattern into the lifting motion of the corresponding warp yarn when it is working, and it is the key actuator in the automatic jacquard weaving system. [0003] The electromagnet assembly mainly includes electromagnets, iron hooks, springs, plastic hooks and other components. The suction end of the iron hook matches the suction head of the electromagnet, and the hook-shaped end of the iron hook cooperates with the plastic hook. When the electromagnet is energized, the suction end of the iron hook is adsorbed on the suction head of the electromagnet, and the hook-shaped end of th...

AI Technical Summary

Problems solved by technology

[0004] The suction head of the electromagnet in the existing electromagnet assembly is exposed outside. When it is connected with the iron hook, the suction end of the iron hook is directly hit on the suction head. After a long running time, the suction head is easily damaged. This is also one of the main reasons for the short service life of the electromagnet in the existing electromagnet assembly

In addition, the suction end is in direct contact with the suction head, and magnetization will occur over a long period of time. Once the magnetization seeps, it will affect the cooperation between the electromagnet and the iron hook, thereby affecting the operation of the entire jacquard machine.

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