JPS6239894Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a welding wire feeding device for arc welding using a consumable welding wire.

Generally, a welding wire feeding device is composed of a wire reel section, a wire straightening section, a wire feeding section, a torch connecting section, etc., but the size of the wire reel section occupies most of these parts. Fig. 1 shows a conventional wire reel section, in which the reel shaft 2 of the wire reel 1 is of the horizontal type as shown in Fig. A, and the reel shaft 2' of the vertical axis type as shown in Fig. B. There are some things, but in any case, the pedestals 3 and 4 are
Each is fixed as one piece to the base plate 5, 5' of the device. In this case, if the wire reel part is exposed, it will still be necessary to store it in the case of the welding wire feeder for outdoor work and other reasons to prevent the welding wire from rusting. In such cases, it is necessary to downsize the welding wire feeding device due to the space required to take out the wire reel section and the difficulty of inserting the welding wire into the wire straightening section or wire feeding section. It had become a bottleneck.

The present invention provides a welding wire feeding device with a wire reel portion that has a simple structure, allows easy attachment and detachment of the wire reel, and allows the entire device to be miniaturized.

FIG. 2 and subsequent figures show an embodiment of the present invention, in which the case body 6 is divided into one case 7 side and the other case 8 side. A support shaft 9 is provided on one side of the case 8, and the support shaft 9 allows the case 7,
8 can open the case body 6 by rotating it in the direction shown by the arrow in FIG. The case body 6 is equipped with a wire reel section 10, a wire straightening section 11, a wire feeding section 12, a torch connection plug 13, etc., and the welding wire 15 wound around the wire reel 14 is The wire straightener 11 corrects the curl, the wire feeder 12 sends out the wire, and the wire is guided to the welding part via a welding torch (not shown) connected to a torch connection plug 13.

By the way, the wire reel unit 10, which is a requirement of the present invention, has a reel shaft 16 that rotatably supports the wire reel 14 divided into cases 7 and 8, and a reel support 17 disposed inside both sides of each case. This wire reel section will be explained in more detail.
FIG. 4 is an exploded perspective view of the main parts of the case 7,
One side of 8 is 7a, 8a and the other side is 7b,
8b. And these both sides 7a, 8a and 7
A reel support 17 consisting of semicircular split rings 18, 19 and 20, 21 is fixed to the insides of b, 8b, respectively. This split ring is 18 and 1
9 forms a pair, and 20 and 21 form another pair, each forming a ring body. That is, each ring body is connected to the reel shaft 1 on which the wire reel 14 is attached.
In order to support the reel shaft 16, the inner diameter of the ring body is made approximately equal to the outer diameter of the reel shaft. Therefore, the split rings 18 and 19 are attached to one end 22 of the reel shaft 16, and the split rings 20 and 21 are attached to the reel shaft 1.
It is provided at a position where it engages with the other end portion 23 of 6. In addition, the reel shaft 16 includes a collar portion 24 that locks the wire reel 14 and a body portion 2 that engages with the wire reel 14.
It consists of 5.

Next, the state when the wire reel 14 is attached to and detached from the case body 6 will be explained. First, when mounting the wire reel 14, the reel shaft 16 is inserted by dropping into the reel hole 14' of the wire reel 14 shown in FIG. Then, even if the wire reel 14 is lifted up, it is locked by the collar 24, so it can be carried freely in this state. Of course, the reel shaft 16 is such that the other end 23 can be engaged with the ring body, and the wire reel 1 is
It is longer than 4. A split ring 1 is fixed to the inside of both sides 7a and 7b of the case 7.
When the case body 6 is closed by engaging the halves of both ends 22 and 23 of the reel shaft 16 with the split rings 19 and 20 on the case 8 side,
Together with 21, 6 is supported internally in the case body. When removing the wire reel 14, the case body 6 may be opened and pulled out parallel to the case body 6.

The attachment and detachment of the wire reel 14 has been described above, but as a practical matter, when the wire reel 14 is attached, the welding wire 15 is wound around it, so some explanation will be added. As already mentioned,
This welding wire feeding device includes a wire straightening section 1.
1. A wire feeding section 12 is provided, and the wire straightening section 11 is composed of a pair of straightening rolls 26 and 26', one straightening roll 26 being supported by the case 7 side and the other straightening roll being supported by the case 7 side. 26' is supported on the case 8 side. And the case body 6
When the welding wire 15 is closed, a correction amount corresponding to the curl of the welding wire 15 is applied. FIG. 5 shows a wire reel 14 wound with welding wire 15.
The divided case main body 6 has a large opening, and at the same time, the straightening roll 26' on the case 8 side has escaped from the wire feeding section 12 together with the case 8. Therefore, the tip of the welding wire 15 can be easily inserted into the wire feeding section 12. Therefore, after placing the wire reel 14 at the position shown by the imaginary line in FIG. do it. Note that 27 and 27' are locking devices such as snap locks for the case body 6. Further, the rear part 6' of the case body 6 may be made transparent so that the remaining amount of wire can be confirmed.

As described above, the present invention allows the wire reel section to be attached and detached in conjunction with opening and closing of the case body, so even if there is not enough room for the wire reel section within the case body, it can be easily attached and detached. There is no need to use screws like in the past, and the simple structure allows cost reduction and miniaturization, which has great effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a wire reel section of a conventional device. FIG. 2 is an external perspective view of the present invention.
FIG. 3 is an internal side view of FIG. 2. FIG. 4 is an exploded perspective view of the main parts of the present invention. FIG. 5 is a side view for explaining the present invention. 6... Case body, 7, 8... Case, 9...
Support shaft, 10... Wire reel portion, 14... Wire reel, 16... Reel shaft, 17... Reel support.

Claims (1)

[Scope of utility model registration request] In a welding wire feeding device consisting of a wire reel section, a wire straightening section, a wire feeding section, a torch connection section, etc., the case body of the welding wire feeding device is divided into two parts, and a support shaft is attached to one end of the welding wire feeding device. established,
A case body that rotates and opens by the support shaft, and a position where a pair of semicircular split rings of opposing cases support one end of the reel shaft on the inside of both sides of each of the two halves of the case body. A reel support device consisting of two pairs of split rings is provided, each of which is fixed at a position where the other pair of semicircular split rings supports the other end of the reel shaft. A welding wire feeding device comprising a wire reel portion in which a reel shaft of a wire reel is attached and detached using the reel support.