JPS6239896Y2 - - 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, and the like. Among these, the wire correction section corrects the curl of the welding wire wound on the wire reel, and applies pressure in the opposite direction of the curl to correct the curl. FIG. 1 shows a conventional wire straightening unit, which is made up of two receiving rolls 2, 2' rotatably supported by a straightening unit main body 1 and one pressure roll 3. It is configured. The pressure roll 3 is located at an intermediate portion facing the two receiving rolls 2 and 2'.
The welding wire 4 is pressed in the direction of the receiving rolls 2, 2' to correct its curl. In this case, when inserting the welding wire 4, either loosen the pressure roll 3 side and insert it between the two receiving rolls 2, 2' and the pressure roll 3, or open the pressure roll 3 side. I was trying to send them in. Of course, the welding wire 4 is guided via the wire straightener to the welding torch, which is connected to the torch connection by the wire feed. However, in any case, in the conventional case, adjustment of the pressing force to obtain the necessary amount of wire correction was necessary.
It was complicated and had to be done each time.

The present invention eliminates these conventional drawbacks, has a simple structure, eliminates the need to adjust the amount of pressure required for wire straightening, and is equipped with a wire straightening part that allows easy insertion of welding wire. The present invention provides a welding wire feeding device.

FIG. 2 and subsequent figures show an embodiment of the present invention, in which the case body 5 is divided into one case 6 side and the other case 7 side. A support shaft 8 is provided on one side of the case 6, and by means of this support shaft 8, the case body 5 can be opened by rotating the cases 6 and 7 in the direction of the arrow shown in FIG. Also, this case body 5
A wire reel section 9, a wire straightening section 10, a wire feeding section 11, a torch connection plug 12, etc. are attached to the welding wire 4 wound around the wire reel 13. The curl is corrected, and the wire is sent out to the wire feeding section 11 via the wire guide 14. The torch connection plug 12 is used to connect a welding torch (not shown) that guides the welding wire 4 to the welding part.

By the way, the wire correction part 1 which is a requirement of the present invention
0 is equipped with a pair of straightening rolls including a pressure roll 15 and a receiving roll 16, and this wire straightening section 10 will be explained in more detail. The pressure roll 15 is rotatably supported by a pressure bracket 18 fixed to the bottom plate 17 on one side of the case 6. Further, the receiving roll 16 is rotatably supported by a receiving bracket 20 fixed to the reducer main body 19 of the wire feeding section 11 which is appropriately supported on the other case 7 side. Each of the rolls 15 and 16 is shaped with a groove provided in the center to prevent the welding wire 4 from coming off the rolls 15 and 16. In the reducer body 19,
Furthermore, a receiving roll 16 is provided in the direction of movement of the welding wire 4.
A wire guide 14 is fixed to one side corresponding to the wire guide 14 with its end visible and embedded, and a wire feed roll (not shown) is installed inside, and a torch connection is installed on the other side. One end of the plug 12 is inserted and fixed. Then, the pressure roll 1 mentioned earlier
5 and the receiving roll 16 correspond to each other so that when the case body 5 is closed, the width directions of the respective rolls 15 and 16 match, and together with the wire guide 14, an appropriate amount of correction can be obtained for the welding wire 4. The position is pre-calculated and positioned. Note 2
Reference numeral 1 denotes a wire feeding motor, which is connected to a speed reducer and serves as a driving source for a wire feeding roll fixed to the output shaft of the speed reducer. Further, a pressure roll for wire feeding is appropriately provided at a position facing the wire feeding roll. 22 is a support for the wire reel shaft 23;
The reel shaft 23 is divided into two parts corresponding to both ends of the reel shaft 23 so that the wire reel part 9 can be attached and detached as the case body 5 is opened and closed. 24,
Reference numeral 24' denotes a locking tool for both the divided cases 6 and 7.

Therefore, as shown in FIG.
By opening, the respective rolls 15 and 16 of the wire straightening section 10 escape together with the cases 6 and 7, so when inserting the welding wire 4, it is sufficient to insert it into the wire guide 14 in this opened state. Therefore, it is extremely easy. Then, the wire reel 13 is stored, the cases 6 and 7 are closed, and the locking tool 2
4, 24'. Then, by driving the wire feeding motor 21, the wire straightening unit 10 can obtain the necessary amount of wire straightening by closing the case body 5, so that the welding wire 4 wound around the wire reel 13 is straightened and sent to the welding part. Supplied. About this invention Cases 6 and 7 and Rolls 15 and 16
The symbols are not restricted to these and may be freely combined, and other symbols are not limited to this example. Furthermore, if necessary, it is a matter of course to provide a section for adjusting the amount of correction by changing the wire diameter.

As described above, the present invention enables the wire straightening section to be engaged and disengaged in conjunction with the opening and closing of the divided cases.The wire case is divided, and each case is equipped with a pair of straightening rolls. By attaching the welding wire separately, it is possible to set the amount of straightening of the welding wire in advance, which not only eliminates the need to adjust the amount of wire straightening when attaching and removing the welding wire, but also allows the wire straightening section to cooperate with the case. Since the pressure roll can be opened by pressing the roll, it is possible to eliminate the trouble of loosening and releasing the pressure roll as in the conventional method.
Its functions are far superior to similar devices, such as the ability to easily insert welding wires, and its effects are remarkable.

[Brief description of the drawings]

FIG. 1 is a front view of a wire straightening 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. Figure 4 shows
FIG. 2 is a side view of the main part in partial section of the present invention. Figure 5 shows
FIG. 3 is an internal perspective view of FIG. 2; 5...Case body, 6...One case, 7...
...Other case, 8 ... Support shaft, 10 ... Wire straightening section, 14 ... Wire guide, 15 ... Pressure roll, 16 ... Reception roll.

Claims (1)

[Scope of utility model registration request] In a welding wire feeding device consisting of a wire reel section, wire straightening section, wire feeding section, 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 thereof. established,
It is equipped with a case body that rotates and opens by the support shaft, and a pair of straightening rolls formed by the pressure roll and the receiving roll, in which a pressure roll is provided on one side of the divided case and a receiving roll is provided on the other case side. A welding wire feeding device comprising a wire straightening section, the wire straightening section being engaged and disengaged in conjunction with opening and closing of the case body.