JPH02127944A - Manufacturing device for aluminum chain having high strength - Google Patents

Abstract

PURPOSE:To efficiently and continuously manufacture an aluminum chain by stopping an aluminum chain ring when it comes to a heating position, softening, melting a joining end of the chain ring by arc heating in an inert gas atmosphere, bringing it pressure joining and thereafter carrying it again. CONSTITUTION:Chain rings 11, 12 of an aluminum chain are carried intermittently. Joining ends 11d, 11d of the chain ring are inserted and held by pressure by a chain guide means 3 and a pressure inserting and holding means 4. When the chain ring 11 comes to a heating position where heating is executed by a torch means 50, it is stopped and by the torch (heating means) 50, the joining ends 11d, 11d of the chain ring are softened and melted by arc heating in an inert gas atmosphere and brought to pressure joining. Thereafter, the chain ring is carried again. In such a way, the aluminum chain having high strength can be manufactured efficiently and continuously.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a manufacturing apparatus for high-strength aluminum chains, and more particularly to a manufacturing apparatus used for joining chain materials.

(Prior Art) A chain 7 using aluminum wire or an aluminum alloy wire is conventionally well known as a chain 7 for interior decorations and women's accessories.
Each ring constituting the chain 7 was constructed by bending an aluminum wire or an aluminum alloy wire into an annular shape, with the ends of the wires simply facing each other. This is because it is difficult to weld aluminum or aluminum alloys using conventional welding techniques using welding rods, and a good joint cannot be achieved.

However, the above-mentioned conventional aluminum chain has a problem that its strength is low and cannot be used as a chain 7 that requires strength.Therefore, as a high strength chain 7, "ζ" is made of iron or "fm" A chain 7 is generally used. It was used in

In contrast, the present applicant has proposed that a good joint can be obtained by softening and melting a pair of aluminum alloy wires (for example, JIS H4040-A5056) in an inert gas atmosphere such as argon, and pressuring them together. They found that the strength was comparable to that of iron wire or steel wire welded joints. After sequentially inserting and engaging the aluminum alloy wire pieces, each aluminum alloy wire piece is shaped into a predetermined elliptical shape to form a chain material, and the mutually opposing wire ends of the aluminum alloy wire pieces of the chain material are shaped into a predetermined oval shape. We have developed and applied for a method for manufacturing high-strength aluminum chains in which the chains are softened and melted by arc heating in an active gas atmosphere and joined together under pressure.
-128525 Danshen W1).

(Five problems to be solved by the invention) By the way, when manufacturing a high-strength aluminum chain using the method described above, conventional bending and cutting equipment or shaping equipment can be used for bending, cutting, or shaping. Conventionally, there was a problem in that there was no suitable equipment for joining, and therefore it was impossible to continuously manufacture such aluminum chains.

In view of these conventional problems, it is an object of the present invention to provide a high-strength aluminum chain manufacturing apparatus that can continuously manufacture high-strength aluminum chains.

Considering the technical issues in constructing the above-mentioned manufacturing equipment, firstly, the chain material is made up of multiple aluminum alloy wire pieces (unit chain rings) that are interlocked and engaged with 11, and adjacent aluminum alloy wire pieces. are at an angle of approximately 90° to each other, and when joining them, it is desirable to join the entire wire end of the aluminum alloy wire piece.To do this, it is important to know how to arrange the torch for arc generation. That's important! ! l!
In addition, it is necessary to arrange the torch for arc generation so that it does not interfere with the feeding of the metal material.

In addition, when joining aluminum alloy wire pieces by applying pressure after softening and melting them, it may be possible to install a separate pressurizing device, but in order to properly join aluminum alloy wire pieces, it is necessary to solidify the aluminum alloy wire pieces. It is necessary to apply pressure immediately before the cutting, and in this case also it is necessary to avoid interfering with the feeding of the metal material.

(Means for Solving the Problem) Therefore, the high-strength aluminum chain manufacturing apparatus according to the present invention has the following features:
A conveying means 2 that conveys intermittently at 112 intervals, and a standing unit chain 7F in which the aluminum chain material l is alternately chained.
A chain guide means 3 having a guide groove 3a into which the lower side 11a of 211 fits and slides, and approximately the center of the upper side 11b protruding from the guide groove 3a of the upright unit chain ring 11 guided by the chain guide means 3. Pressing and holding means 4 press and hold the pair of opposing joint ends 11d and 11d located at 11d in a direction in which they contact each other during joining, and at least perpendicular to the pair of joint ends tta and Lid that contact each other at the time of joining, and It is equipped with a pair of torch means 50 facing each other, and a heating means 5 that performs arc heating while creating an inert gas atmosphere around the joint ends of the pair to be joined, and sequentially intermittently heats the aluminum chain material l at unit chain ring intervals. transport,
When the position where the chain ring 11 is to be joined reaches the position of the heating means 5, its conveyance is stopped, and the upright side unit chain ring 11 protruding from the guide groove 3a of the chain guide means 3 is held by the pressing and holding means 4. The surroundings of the pair of predetermined joint ends 11d, 11d are arc-heated in an inert gas atmosphere by the heating means 5 to soften and melt, and the pressing and holding means 4
A pair of joint ends 11d, 11d facing each other
The gist of the system is to press the parts in the direction of contact, join them, and then transport them again.

Here, the chain guide means 3 may have any structure as long as it can raise the unit chain ring 11 and guide it to the position of the heating means 5, but for example, it may have an aluminum chain material l.
The lower side 11 of the upright side unit chain rings 11 that are orthogonally linked
A pair of long guide bars 31 and 32 having guide grooves 31a and 32a into which the horizontal unit chain ring 12 rides and slides are placed at the joining position, and the upright unit chain ring 11 to be joined is assembled. The joint guide portion 33 sandwiched between the sliding guide grooves 33a may be arranged at an angle so as to form ridges on both sides with the joint guide portion 33 as the top, thereby forming a chevron-shaped chain guide path.

Moreover, the pressing and holding means 4 is a unit cheno I! Any structure may be used as long as it can press and hold the joining end of the ring 311 at least in the abutment direction during joining, but preferably the upright side guided by the chain guide means 3 (the 11th chiche ring 11
guide groove 3a. A pair of t, i! which are movable in order to fit in and out the holding grooves 41a and 42a that fit into the curved portions 11c and 11c on both sides of the upper side 11b protruding from 33a.
It is preferable to have a dynamic arm 4142 and to configure at least one of the movable arms 41 to be movable in the direction of the pressing force of the abutment joint end with respect to the other swinging arm 42 facing the movable arm 4142.

Further, the heating means 5 has a pair of torch means 50 which are attached to the hill-cropping arms 51, 51, and are orthogonal to the pair of joining ends 11d, 11d that abut each other during joining, and are opposed to each other. The pair of joint ends 11d can be moved to the welding posture position and evacuated from the position after welding, and the pair of joint ends 11d can be removed from the periphery of the pair of torch means 50.50.
It is desirable to configure the inert gas G to be able to be jetted out in a countercurrent to the gas 11d.

(Function) In this invention, the conveying means 2, the chain guide means 3
Since the device is configured by the pressing and clamping means 4 and the heating means 5, it is possible to continuously weld high-strength aluminum alloy wire, and since the pressing and clamping means 4 and the heating means 5 are movable, it is possible to There is no problem in conveying the material.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 show an apparatus for manufacturing a high-strength aluminum chain according to an embodiment of the present invention.
1 is a welding device according to this embodiment, in which the welding devices MISM2 are arranged in parallel in the conveyance direction of the aluminum chain material 1, and between the two strokes, the upright side and The horizontal unit chain ring 1112 is rotated 9 clockwise or counterclockwise with its longitudinal axis X-X as the rotation axis.
A mechanism 6 for rotating the 0 degree plane, for example, a temporary guide having a guide groove is arranged, and the horizontal unit chain ring 12 that was not joined by the front joining device M1 is transferred to the rear joining device M2.
It is designed to be ζ-jointed.

The joining device M1 includes a conveying means 2, a chain guide means 3,
It is composed of a pressing and holding means 4 and a heating means 5,
The conveying means 2 has a claw portion (not shown) that engages with the unit chain rings 11 and 12 so as to be retractable.
, 12 are conveyed one pitch at a time, that is, the chain blank 1 is conveyed intermittently at intervals of 11.12 unit chain rings. Further, the chain guide means 3 has a pair of long guide bars 31 and 32 disposed at the joint position, and the joint guide portion 3
The elongated guide bar 31, 32 has an upright side unit chain ring 11 which is orthogonally chained to the long guide bar 31, 32 to form a ridge on both sides with 3 as the top.
Guide grooves 31a and 32a are formed into which the lower side 11a fits and on which the horizontal unit chain ring 12 rides and slides.
A sliding guide groove 33a is formed to sandwich the guide groove 3.
1a, 32a, 33a are chain guide paths (guide groove 3a)
It consists of

Further, the pressing and holding means 4 includes a pair of swinging arms 41.4.
2, one swing arm 41 is configured to be movable in the pressing direction of the contact joint ends IId and 11d with respect to the other swing arm 42 facing the other swing arm 42, and the swing arm l1L42 is provided with a chain guide means 3. Holding grooves 41a, 42 that fit in and out of the upper both side curved parts 11c, 11c protruding from the guide grooves 3a, 33a of the upright side unit die ring 11 guided by the
a is formed.

Furthermore, the heating means 5 has a pair of torch means 50, which are attached to a stand-in arm 51.51 and which have a pair of joining ends 11d, 11d which abut each other during joining.
The torch means 50.50 is provided so that it can be moved to a welding posture position perpendicular to and facing each other, and can be retracted from this position after welding. The inert gas G can be spouted in a countercurrent to the gases 11d and 11d.

On the other hand, since the bonding device M2 is configured similarly to the bonding device M1, a detailed explanation thereof will be omitted.

Next, the operation will be explained.

The aluminum alloy wire is bent and cut into a substantially circular shape by a bending and cutting device, and this is inserted into and engaged with the preceding aluminum alloy wire piece, and further shaped into a predetermined elliptical shape by a shaping device, thus forming a unit chain ring. When the cheno blank 1 composed of 11 and 12 is formed, the cheno blank 1 is conveyed one pitch at a time to the front side joining device M1 by the conveying means 2.

Then, in this front side joining device Ml, the Cheno material 1
The lower side 11a of the unit chain ring 11 that constitutes the unit chain ring 11 fits into the guide groove 31a of the guide bar 31 of the chain guide means 3, and the chain ring 11 stands up, and the unit chain rings 1 in front and behind it! : 112 is guided to the joining guide part 33 while riding on the guide bar 31.

One upright side unit chain ring 11 presses and holds the holding means 4.
While pushing up the other swinging arm 42, when it comes to the sliding guide groove 33a of the joining guide part 33, the upright side unit chain ring 11 is held in the sliding guide groove 33a, and
1! The i-motion arm 42 moves downward by its own weight, and the swing arm 41 is driven by a drive mechanism such as a piston (not shown).
The gripping grooves 41a and 42a of both arms 41 and 42 fit into the curved portions 11c and 11c on both sides of the upper side 11b protruding from the guide groove 33a of the unit chain ring 11, and thus the unit chain ring 11 is moved downward by 1z. Set.

Next, the torch means 50.50 is connected to the connecting end 11d of the unit chain ring 11 by means of the operating arm 51.51.

11d, and in this state, inert gas G is jetted and a DC or AC voltage is applied to the torch means 50 to generate an arc, and the unit chain ring 11 joint ends 11d, 11
d is arc heated and its entire surface softens and melts, and when a predetermined period of time has elapsed and the joints 111d and 11d are about to solidify,
The swinging arm 41 is moved to the swinging arm 42 side by a driving means (not shown) such as a piston, and the joint end 11d,
11d are pressed together and joined together.

When the joining ends 11d and 11d are joined in this way, the heating means 5 and the pressing and holding means 4 perform the operation opposite to the above to release the unit chino 11, and the conveying means 2 feeds the chino material 1 by one pitch, Then, every other unit chain ring 11 of the chain blank 1 is joined, and the chain blank 1 is then rotated 90 degrees and sent to the rear joining device M2, where the remaining unit chain rings 1012 are joined. .

In the manufacturing apparatus of this embodiment as described above, the joining devices M1 and M2 are constructed using the conveying means 2, the chain guide means 3, the pressing and holding means 4, and the heating means 5, so that the continuous manufacturing of aluminum chains is possible. In addition, two joining devices M1 and M2 are provided to connect adjacent unit chain rings 11 and 1.
Since one of the parts 2 is joined by the front side Ml and the other by the rear side M2, efficient (continuous manufacturing) can be achieved.

Further, in this apparatus, since the heating means 5 is constituted by the pair of torch means 50, 50, the joint ends 11d, 11d of the unit chain ring 11 can be joined together well, and the chain strength can be guaranteed.

Furthermore, in this device, the torch means 50.5 of the heating means 5
0 can be moved, and the swinging arm 41 of the pressing and holding means 4.
42 is made movable, so there is no problem in conveying the chino material 1.

(Effects of the Invention) As described above, according to the high-strength aluminum chain manufacturing apparatus according to the present invention, the aluminum chain material is intermittently conveyed at successive chain ring intervals, and the chain rings are brought to the position of the heating means (
Then, the conveyance is stopped, the unit chain ring protruding from the guide groove of the chain guide means is held by the pressing and holding means, and the joining end of the chain ring is arc heated in an inert gas atmosphere by the heating means to soften and melt it. After the pieces are pressed and joined by the pressing and holding means, they are conveyed again, so that aluminum chains can be manufactured efficiently and continuously without any hindrance to the conveyance of the chain material.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram showing a high-strength aluminum chain manufacturing apparatus η according to an embodiment of the present invention, FIG. 2 is a perspective view of the main parts of the apparatus, and FIG. FIG. 4 is a partially enlarged side view of the above device. 1--Aluminum chain material, 2--1.Transporting means, 3--Chain guide means, 3a--Guide groove, 4--Suppressing and holding means, 5-- ... Heating means, 11 d --- One joint end, 31.32-.
・−・−・Guide bar, 33−・・・・−Joint guide part,
41,42...--IM dynamic farm 50- Torch means patent applicant Kato Seisakusho Co., Ltd. Representative Patent attorney Hisao Ishii Figure

Claims (5)

[Claims] (1) A conveying means 2 for intermittently conveying the chained aluminum chain materials 1 at intervals of unit chain rings 11 and 12, and a lower side 11a of the upright side unit chain rings 11 of the aluminum chain materials 1 that are alternately chained. The guide groove 3a into which the
a chain guide means 3 having
Pressing and clamping means 4 for pressing and clamping a pair of opposing joining ends 11d, 11d located approximately at the center of the upper side 11b protruding from the guide groove 3a of the upright unit chain ring 11 guided by the upright unit chain ring 11 in a direction in which they come into contact with each other during joining; , for the pair of joint ends 11d, 11d that abut each other,
Heating means 5 includes at least a pair of torch means 50 that are perpendicular to each other and face each other during joining, and performs arc heating around the pair of joint ends to be joined while creating an inert gas atmosphere.
The aluminum chain material 1 is conveyed intermittently at intervals of unit chain rings, and when the position where the chain rings 11 are to be joined comes to the position of the heating means 5, the conveyance is stopped and the pressing and holding means 4 The upright unit chain ring 11 protruding from the guide groove 3a of the chain guide means 3 is held between the two, and the area around the pair of predetermined joint ends 11d, 11d is arc-heated in an inert gas atmosphere by the heating means 5 to soften and melt. and the pair of joint ends 11d facing each other are held together by the pressing and holding means 4.
, 11d in the direction of contact, joining, and conveying again. (2) The chain guide means 3 has a guide groove into which the lower side 11a of the upright side unit chain rings 11 of the aluminum chain material 1 which are orthogonally linked is fitted, and the horizontal side unit chain rings 12 ride and slide thereon. A pair of long guide bars 31 and 32 having 31a and 32a are arranged at the joining position, and the ridges on both sides are formed with the joining guide part 33 which holds the upright unit chain ring 11 to be joined in the sliding guide groove 33a as the top. 2. The apparatus for manufacturing a high-strength aluminum chain according to claim 1, wherein the chain guide path is arranged in an inclined manner so as to form a mountain-shaped chain guide path. (3) The pressing and holding means 4 is the chain guide means 3
The guide grooves 3a, 3 of the upright unit chain ring 11 guided by the
It has a pair of swing arms 41 and 42 that are swingable to fit in and out of the holding grooves 41a and 42a that fit into the upper side curved portions 11c and 11c protruding from the upper side curved portions 11c and 11c, and at least one of the swing arms 41 and 42 is swingable. 4. The high-strength aluminum chain manufacturing apparatus according to item 1, wherein the swing arm 41 is configured to be movable in the pressing direction of the abutment joint end with respect to the other swing arm 42 facing the other swing arm 42. (4) A pair of torch means 50 constituting the heating means 5
are attached to the operating arms 51, 51, and move to a welding posture position in which they are orthogonal to the pair of joint ends 11d, 11d that abut each other during welding, and face each other, and are retractable from this position after welding. At the same time, a pair of joint ends 11d, 1 are connected from the periphery of the pair of torch means 50, 50.
1. The high-strength aluminum chain manufacturing apparatus according to item 1, characterized in that the inert gas G can be spouted in a countercurrent to 1d. (5) The welding devices M1 and M2 described in item 1 above are arranged in parallel in the conveying direction of the aluminum chain material 1, and the front welding device M1
The upright side and horizontal side unit chain rings 11 and 12, which are orthogonally linked and carried out from the machine, are rotated 90 degrees clockwise or counterclockwise about their longitudinal axis A high-strength aluminum chain manufacturing apparatus is capable of continuously welding horizontal unit chain rings 12 that have not been pressure-welded by the front welding device M1.