JPH0242687Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for forming a welding wire into a loop and loading it into a pail pack.

[Conventional technology and problems]

For example, Japanese Patent Application Laid-Open No. 57-1980 is a method of loading welding wire into a pail pack while twisting it around 360 degrees per turn and creating a flower pattern.
There is a method using the device disclosed in No. 126355, which has been effective to some extent.

However, in conventional loading methods, lubricating oil is already applied to the surface of the wire fed to the loading device, and when such wire is continuously fed to the loading device, slips occur at the wire feed rollers, etc. . As a result, the wire feeding speed fluctuated, causing disturbances in the wire loop diameter within the pail pack, making it difficult to obtain a good stacked state. This problem becomes more pronounced as the wire feeding speed, that is, the loading speed increases, and therefore, in order to obtain the desired wire stacking state, the feeding speed cannot be increased too much, which is the key to improving productivity.

The present invention was devised to solve the above-mentioned problems of the conventional technology, and an object of the present invention is to provide a welding wire loading device that can increase the wire feeding speed and improve productivity. shall be.

[Means and actions to solve the problem]

The present invention is a loading device for stacking and storing welding wires in a loop shape in a pail pack, and is characterized by being equipped with an oil spray device for creating an oil mist atmosphere (oil mist) inside the pail pack. This is a loading device for wires.

The present invention will be explained below based on specific examples shown in the drawings.

FIG. 1 is an overall side view showing an example of the device of the present invention, with a portion shown in cross section, and FIG. 1 is superimposed on FIG. B to form a single drawing. In the figure, W is a welding wire sent from a wire supply source (not shown), and the wire W is fed from the wire supply source by a wire feeding mechanism 42 consisting of a wire take-up capstan 5 and a presser roller 6, which wraps the wire several times. It is pulled out from the pail pack 1 and fed into the pail pack 1. The take-off capstan 5 is rotated by a drive motor 10 via a belt 9, the rotational speed of which determines the feeding speed of the wire W fed into the pail pack. 11 is a guide pipe that guides the wire W from the capstan 5 to the pail pack 1, and the upper part thereof is connected to the rotating shaft 1.
The rotating shaft 1 is integrally attached to the hollow interior of the rotary shaft 1.
4 is attached to a fixed support frame 24 via bearings, and is rotated at a predetermined speed by the drive motor 10 via pulleys 15, 16, a belt 17, and a speed reducer 18. Further, the lower part of the guide pipe 11 is spirally wound around and attached to a support tube 20 attached to a planetary gear mechanism 19 having the rotating shaft 14 as its axis.

The planetary gear mechanism 19 has a plurality of planetary shafts 22a with planetary gears 22 arranged at the upper and lower ends attached to a pair of discs 21 fixed to the rotating shaft 14 via bearings, and an upper internal gear that meshes with the planetary gears 22, 22. 23a and a lower internal gear 23b are provided at the upper and lower portions. The upper internal gear 23a is fixed to a support frame 24, and the lower internal gear 23b is fixed to a support cylinder 26 suspended from the lower end of the rotating shaft 14 via a bearing. As a result, the support cylinder 26 is supported and suspended from the rotating shaft 14 in a stationary state. The support tube 26 has a guide tube 25 attached to its lower part that guides the wire coming out of the guide pipe. This guide tube 25 has a protruding member 41 at its lower end for regulating the falling position of the wire loop that lands on the upper end of the wire stack W' so that it comes into contact with the inner wall of the pail pack 1.
It is installed so that it protrudes diagonally downward.

The pail pack 1 is placed on a turntable 27, and the turntable is attached to a lifting table 34 of a lifting mechanism 33 via a bearing.
It is rotated at a predetermined rotational speed (low speed) by a drive motor 32 via pulleys 28, 29, a belt 30, and a reducer 31. The lifting mechanism 33 is the guide pipe 1
In order to keep the distance between the exit of No. 1 and the upper end surface of the wire stack W' constant, the bail pack is gradually lowered vertically at a predetermined speed as the height of the stack W' increases. The support members 36 and 37 of the lifting platform 34 are rotatably crossed by a shaft 38. The supporting members 36 and 37 are slidably attached to the lifting table 34 and the base 35 at both ends, and the cross shaft 38 is configured to be movable only in the vertical direction. 40 is a hydraulic cylinder of the lifting mechanism. The reference numeral 39 provided near the entrance 12 of the guide pipe is a detection means, for example, a proximity switch, for issuing a descending command to the elevating mechanism. detects the rotation speed of the rotating shaft 14,
A descending command is sent to the elevating mechanism 33 at every predetermined rotation speed. Each time the transmission is received, the elevating mechanism lowers the elevating platform little by little to maintain a constant distance between the outlet of the guide pipe 11 and the upper end of the wire stack W'.

The above is a known loading device (Japanese Unexamined Patent Publication No. 57-126355), and in the present invention, such a loading device is equipped with an oil spray mechanism for creating an oil mist atmosphere inside the pail pack and applying oil to the surface of the wire being loaded. establish. 7 is an oil spraying mechanism, and this mechanism 7 includes an oil container 71 and a pump 7.
2, piping 73, injection nozzle 74, etc.
In this example, two injection nozzles 74 are disposed close to the outer periphery of the support tube 20 with their injection ports facing downward. Injection operation is intermittent (e.g. every 5 to 10 minutes)
or every predetermined loading weight (for example, every 50 to 100 kg loading), the injection time is 0.02 to 1 second, and the amount of oil injected is 0.05.
Inject approximately 0.5g. The injection signal is transmitted by a timer and by the detection means 39. Of course, it is possible to spray the oil continuously instead of intermittently, but the sprayed oil accumulates in the form of mist inside the pale pack and maintains an oil mist atmosphere for a while, so it is usually sufficient to spray it intermittently. be. For this reason, care must be taken to create a closed space to prevent oil mist from escaping. In other words, the above injection is performed after comprehensively considering the type of oil, injection particle size, injection angle, injection speed, wire diameter, loop diameter, final loading amount, degree of closure of the space inside the pail pack, desired amount of oil adhesion on the wire surface, etc. Determine the operating mode.

As described above, in the loading device of the present invention, the operation of applying lubricating oil to the wire surface is performed on the wires that are being laminated or have been laminated within the pail pack. Therefore, since there is no oil on the surface of the wire that is fed to the loading device, slips do not occur at the wire feed rollers, etc. as in the past, and the wire can be fed at a constant speed and loaded at high speed. becomes.
However, if an amount of oil adheres to the wire surface that does not interfere with this constant speed feeding (if the oil adheres unavoidably in the previous process), this is not a problem and is of course permissible.

Figures 2a and b show other examples of the present invention.a
is the injection nozzle 7 from the bottom center hole of the pale pack 1.
4 is guided and arranged, and b shows an example in which an oil spraying mechanism is attached to the inner surface of the support cylinder 26 and a spray nozzle 74 is vertically provided.

[Effect of idea]

As explained above, according to the welding wire loading device of the present invention, the wire can be fed into the pail pack without slipping, so high-speed loading is possible and productivity is improved. In addition, since the feeding speed does not fluctuate, a good loading condition can be achieved, and the quality of the product as a welding wire in a pale pack is improved.

[Brief explanation of drawings]

FIGS. 1a and 1b are overall side views showing one embodiment of the device of the present invention, with some portions shown in cross section. Figure 2a,
b is a sectional view showing another embodiment. 1...Pail pack, 7...Oil spray mechanism, 74
...Injection nozzle, W...Welding wire.

Claims (1)

[Scope of utility model registration request] 1. A welding wire loading device for stacking and storing welding wires in a loop shape in a pail pack, the device comprising an oil spraying mechanism for creating an oil mist atmosphere inside the pail pack.