JPH0562027B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to a method for forming a twisted loop of welding wire and loading it into a pail pack. [Conventional technology and problems] Generally, welding wire in a pale pack is
They are stacked and stored in a loop shape with a twist of around 360 degrees per loop. As a method of loading wire into a pail pack, for example, there is a method using a device disclosed in J. Kokai No. 57-126355, which has been effective to some extent. The surface of the welding wire is coated with a predetermined amount of lubricating oil (approximately 0.4 to 2.0 g/10 kg wire) of lubricating oil for the purpose of improving wire feedability during welding. This oil application is carried out in the wire drawing step, which is a previous step, or immediately after the wire drawing step, prior to loading the pale pack. In other words, in the conventional loading method, the surface of the wire fed to the loading device is already coated with the amount of lubricant required for the product wire, and when such wire is continuously fed to the loading device, the wire feeding roller Slips occur in some areas. 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 has become a bottleneck for improving productivity. The present invention has been made in order to solve the problems of the prior art described above, and it is possible to secure the necessary amount of lubricant for welding wire and to increase the wire loading speed, thereby improving productivity. The object of the present invention is to provide a method for loading welding wire. [Means and effects for solving the problems] The present invention is a loading method for storing welding wires in a pile by twisting them into a loop shape in a pail pack, and in which the wires are substantially coated with no lubricant. is supplied to the loading device, and lubricant is actively applied to the surface of the wire after passing through the feed roller, so that the wire stored in the pail pack is given the necessary amount of lubricant as welding wire. This is a method of loading welding wire. As described above, in the loading method of the present invention, the operation of applying lubricant to the wire surface is performed on the wires that are being stacked or have been stacked in the pail pack. Since no lubricant is attached to the surface of the wire that is fed to the loading device, slips do not occur at the wire feed roller as in the past.
Constant-speed wire feeding and high-speed loading are possible. However, if a sufficient amount of lubricant (approximately 0.4 g of oil adhesion/10 kg wire or less) is attached to the wire surface (approximately 0.4 g of oil adhesion or less than 10 kg of wire) that does not interfere with this constant speed feeding (if it is unavoidably attached in the previous process), this will not be a problem. acceptable. The wire that has passed through the feed roller is coated with lubricant on its surface by an appropriate lubricant applicator, and the amount of lubricant (e.g. oil adhesion) necessary to maintain the quality (feeding performance) as a welding wire is Amount 0.4~
2.0g/10Kg wire). 1 and 2 are overall side views (partially in section) showing a specific example of an apparatus for carrying out the loading method of the present invention, and FIG. 1 is superimposed on FIG. 2 to form a single drawing. Configure. In the figure, W is a welding wire sent from a wire supply source (not shown),
The wire W is pulled out from the wire supply source and fed into the pail pack 1 by a wire feeding function consisting of a wire take-up capstan 5 that wraps the wire several times and a feeding roller 6. The take-up capstan 5 is driven and rotated by a drive motor 10 via a belt 9. The pair of feed rollers 6 have their roller shafts supported by a fixed plate of the rotating shaft 14, and have a bevel gear 16b and a spur gear 16.
The bevel gear 16a (support frame 24
(fixed to) is driven and rotated. The rotating shaft 14 is attached to a fixed support frame 24 via a bearing,
It is rotated at a predetermined speed by a drive motor 10' via pulleys 15, 16, a belt 17, and a speed reducer 18.
Reference numeral 11 denotes a guide pipe that guides the wire W from the capstan 5 to the pail pack 1. The upper part of the guide pipe 11 is integrally attached to the hollow interior of the rotating shaft 14, and the lower part of the guide pipe 11 is a guide pipe that guides the wire W from the capstan 5 to the pale pack 1. It is attached to the support tube 20 attached to the gear mechanism 19 by winding it spirally. In the planetary gear mechanism 19, a plurality of planetary shafts 22a having planetary gears 22 arranged at the upper and lower ends are attached to a pair of discs 21 fixed to the rotating shaft 14 via bearings, and mesh with the planetary gears 22, 22. An upper internal gear 23a and a lower internal gear 23b are provided at the upper and lower parts. 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 portion that guides the wire coming out of the guide pipe. This guide tube 25
has a protruding member 41 at its lower end for controlling 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.
is attached so as to protrude 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 outlet of No. 1 and the upper end surface of the wire stack W' constant, the pail 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'. Further, 7 is an oil spraying mechanism, and this mechanism 7 is an oil container 7.
1. Pump 72, piping 73 and injection nozzle 74
Consists of etc. Two injection nozzles 74 are disposed close to the outer periphery of the support cylinder 20 with their injection ports facing downward. The injection operation may be performed intermittently (e.g. every 5-10 minutes) or at predetermined loading weights (e.g. every 50-100 minutes).
Amount of oil injected with injection time of 0.02 to 1 second per kg loading)
Inject approximately 0.05 to 0.5g. The injection signal is transmitted by a timer and by the detection means 39. Of course, it may be sprayed continuously instead of intermittently, but the sprayed oil settles 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 intermittently. . For this reason, care must be taken to create a closed space to prevent oil mist from escaping. In other words, oil type, spray particle diameter, spray angle, spray speed, wire diameter, loop diameter,
The above-mentioned injection operation mode is determined by comprehensively examining the final loading amount, the degree of closure of the internal space of the pail pack, the desired amount of oil adhesion on the wire surface, etc. [Example] Table 1 shows the effects of the loading method according to the present invention together with comparative examples. Copper-plated steel wire (component: C0.07) with a wire diameter of 1.2 mm is loaded using the loading device shown in Figure 1.
%, Si 0.80%, Mn 1.61%) was loaded into the pale pack. The lubricant used at this time was rapeseed oil. In Table 1, the loading speed is the maximum wire feeding speed at which a good loading condition can be obtained, and in Examples No. 1 and 2 of the present invention, the loading speed is as high as 300 m/min.
And the required amount of oil is applied to the product wire, which is 0.4g/10Kg wire or more. In addition, in the comparative example, the amount of oil adhering to the supply wire and the product wire was the same, and No.
In No. 3, the loading speed is faster, but the amount of oil adhesion on the product wire is only 0.2g/10Kg wire, which does not satisfy the quality of the product, and in No. 4, the amount of oil adhesion on the product wire is satisfactory, but the amount of oil on the supply wire is low. Due to the excessive amount of adhesion, the loading speed could not be increased and was as slow as 150 m/min.

〔Effect of the invention〕

As explained above, according to the welding wire loading method of the present invention, the necessary amount of lubricant can be applied to the welding wire and the wire can be fed into the pail pack without slipping, so high-speed loading is possible and productivity is improved. will improve. 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 the drawing]

FIGS. 1 and 2 are overall side views showing a specific example of an apparatus for carrying out the present invention, with some of the parts shown in cross section. 1...Pail pack, 7...Oil spray mechanism, 6...
...Feeding roller, W...Welding wire.

Claims (1)

[Claims] 1. A loading method for storing welding wires in a pile by twisting them into a loop shape in a pail pack, in which wires substantially without lubricant are supplied to a loading device, and the wire surface after passing through a feeding roller is A method for loading welding wire, characterized in that the lubricant is actively applied to the wire stored in the pail pack to provide the necessary amount of lubricant for the welding wire.