Wire Spool Supporting Device And Locking Structure Of Threaded Connection Component

Abstract

The invention provides a wire spool supporting device a locking structure of a threaded connection component. A wire spool can be assembled reliably through simple operation and the wire spool can be changed simply. The wire spool supporting device (A1) is provided with a fixed shaft (1); a rotary body (2) supported on the fixed shaft rotatably and provided with a threaded part (23) in a front end; and a cap component (3) provided with a threaded part (32) threaded with the threaded part (23). A flange (22) is arranged on a base end of the rotary body. The wire spool (7) is arranged between the flange and the cap component. The wire spool is supported integrally through the rotary body. The wire spool supporting device is provided with a locking mechanism (5) and an unlocking mechanism (6). The wire spool supporting device is provided with claws arranged on the cap component and holes that can not rotate relatively to the rotary body. When the cap component is screwed in at a predetermined volume relatively to the rotary body, through the clamping of the claws and the holes, the threaded parts are prevented from releasing. The unlocking mechanism removes the clamping of the claws and the holes through the operation of an operation rod.

Description

technical field [0001] The present invention relates to a reel support device for rotatably mounting a reel on which welding wire is wound, and a locking structure of a screw connection member applicable to the reel support device. Background technique [0002] In gas-shielded arc welding with a consumable electrode, generally, a wire as a welding material wound on a reel is fed out to a welding torch at a desired feed amount by a wire feeding device. A bobbin supporting device is provided in the vicinity of the wire feeding device (for example, refer to Patent Document 1). [0003] The reel supporting device disclosed in Patent Document 1 is as described in this document. figure 2 As shown, it includes: a fixed shaft; a rotating shaft (rotary body) rotatably supported by the fixed shaft; and a fixed cap (cap member) screwed into the front end of the rotating shaft. The fixed shaft is fixed to a standing support plate provided near the wire feeding device. The rotating sh...

AI Technical Summary

Problems solved by technology

[0007] However, in the above-mentioned conventional structure, when the winding reel is assembled, a two-stage screwing operation is required, that is, after the fixing cap is screwed in, the pressing screw is also screwed in, so this operation is cumbersome.

In addition, there is a possibility of forgetting to screw in the screw, which is not good in the reliability of the installed state.

In addition, when the metal wire wound on the reel is used up, the reel needs to be replaced, but when removing the reel, it is also necessary to unscrew the thread in two stages, so the replacement work of the reel is also troublesome.

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