LU84728A1 - IMPROVEMENT IN HOLLOW BODY JOINING DEVICES - Google Patents

Description

\ _; _ BL- 3450

Patent application of March 31, 19 83 Designation of the Inventor (1) The undersigned .iffiYERS .. Ernest ...... engineers. in own. ind. f ...............................

* 46, rue du Cimetière Luxembourg acting as a deputy / agent of the depositor -

^ SPIRO INVESTMENT AG

.................... Indue tari§strasse .......................... .................................................. .................................................. ................

.................... CR ...-.... 3178 .... BOES.INGEN ..... CSnis.se) .... .................................................. .................................................

(s) of the invention concerning: ....... "Perfectionnement.-aux .... dispo.si ± ifs ... d.Vas.s.embla.ge .... de ... .c.Qrp.s ... cr.e.ux ...

by crimping ”designated as inventor (s): 1. Name and first names .......... ^ .. Etieime ..................... .................................................. ...............................................

Address ....... rue de Bornai 7 .................... B - 5940 RAMjTLftlgE (pelgjqqé) ........... .......

2. Surname and first names ............................................. .................................................. .....

Street address. of. la ^ .N ^ .............. B ... 1348_MJTO .............

3. Surname and first names ............................................. .................................................. .................................................. ...................

Address ................................................. .................................................. .................................................. .......................................

He affirms the sincerity of the above indications and declares to assume full responsibility for them.

Luxembourg j 10 May -jg 83 '.......

(signature) A 680 26_______________ (1) Last name, first names, firm, address.

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BL-3450 / EM / EG

Patent

Improvement to assembly devices; _ hollow body by crimping_ i! d ^ d d

l. · SPIRO INVESTMENT AG

I Industriestrasse, fi CH - 3278 BOESINGEN (Switzerland ί i! To ‘1

Improvement of devices for assembling hollow bodies by crimping.

The present invention relates to a device making it possible to assemble by vertical crimping (simple) two hollow bodies with thin walls, optionally with symmetry of revolution, in particular tubes, elbows or conical reduction elements 5 intended for transporting air in an installation air conditioning, for example.

Various devices are known which make it possible to obtain a linear or curved stapled or crimped assembly, however presenting various difficulties in operation. The present invention aims to provide another device of the above-mentioned type.

| The object of the present invention is achieved by providing a device for assembling a hollow body by vertical crimping, characterized in that it comprises a support mandrel mounted on a suitable rotary support adapted to the elements to be assembled, which rests on the at least three support points which are movable as a function of the dimension of the elements to be assembled, and a crimping roller composed of at least two elements, namely a support roller and a crushing roller, these two rollers being mounted so as to be able to be displaced I in the direction of the support mandrel in order to perform a pre-folding by deformation between two fixed lips, these two rollers also being able to be brought close to each other to allow crimping of the edges of the elements to be assemble, at least one of the aforementioned elements, rollers and mandrel which can be rotated by a drive member.

According to the invention, the operator deposits the elements I, to be assembled one on the other on the support points so that the support mandrel is applied against the internal surface f adjacent to the joints of the two elements to assemble.

: Then the crimping roller made up of at least two parts is brought against the external wall of the elements i | assemble so as to crush and crimp the edges of! 35 * items.

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In general, it suffices that the support roller is driven by a motor, the other elements such as the mandrel - and the parts to be assembled being driven by friction -

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In case this training is not enough

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1 step, the support mandrel and the crimping roller can be driven in such a way that the circumferential speeds are identical.

P, pj According to the invention, the elements to be assembled [ï must have particular ends. The extreme- | mite of one of the elements to be assembled has for example 1 10 p a b rd folded perpendicular to the wall; A 'f- the other element presents a section affecting global-? ment the shape of a U in which fits the first element, the uprights of the U being folded and crimped on the edge of the first element.

Other details and advantages of the device of the present invention will appear more clearly in the description of a preferred embodiment supported by the appended figures in which: - Figure 1 shows a schematic view of the device. 20 tif of the invention according to a first embodiment; - Figure 2 is a schematic plan view of Figure 1.

In FIG. 1, the elements to be assembled 1 and 2 having an adequate cross-section rest on at least three support points. According to a partial execution mode; ; Particularly preferred, the elements to be assembled 1 and 2 are based on four support points 5, 6, 7 and 8 (Figure 2); . arranged on two arms 10 and 11 orientable and adjustable j; depending on the dimensions, namely the diameter, of the 30 elements to be assembled, the arms 10 and 11 being fixed to the I - parts 3 of the machine.

! Advantageously, the arms 10 and 11 are preserved. formed by at least two parts assembled by an articulation. Preferably, they each consist of a first part 12 on which a two are hinged; xth part 13 whose end opposite to part 12 j -i includes an articulation from which two branches start: * i J orientable ches 14 and 15 ending in a small roller: <1 3: ί i (5, 6, 7, 8) serving as a fulcrum at the U-shaped edges of one of the elements to be assembled.

The support mandrel 17 is disposed inside the elements 1 and 2 and is applied against the surface; C f e, / J content of said elements. The support roller 17 is mounted on a rotary support 19 having a particular suitable shape allowing the rotation of curved elements 2 having an angle of up to 45 e or more.

According to the invention, the crimping roller 20 is composed of at least two parallel rollers, namely a support roller 21 and a crimping or crushing roller 22 having substantially the same diameter as the roller 21. According to a mode d particularly preferred embodiment, it also comprises a third roller of the same orientation, namely a pre-folding roller 23. The latter advantageously consists of an elastic material. Advantageously, the support rollers 21 and pre-folding 23 or crushing 22 can be separated from one another along their common axis, by means of a jack 25, for example. The crimping roller 20 comprising the different parts 21, 22, 23 is advantageously driven by a drive member 26.

In operation, when the elements to be assembled 1 and 2 are disposed correctly and when the rollers 21 and 23 are separated, the crimping roller 20 is brought against the elements to be assembled. By means of a jack 27. The spacing of the rollers and / or the presence of the pre-folding roller 23 make it possible to make one or more notches in the U-shaped edge by deformation between two lips. These notches prevent the "relative movement of one element with respect to the other, during the continuous crimping (crushing) carried out subsequently.

Then, the rollers 21 and 23 and / or 22 are brought closer to one another in order to crush as much as possible the amount of the ü on the edge of the other element, between the two parallel faces of the rollers, and the roller 20 is in

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î II rotated by the drive member 26 to make an eye.

4! I 4 or more times around the symmetrically revolving elements.

Depending on the dimensions of the elements to be assembled 1 and 2 and the thickness of the wall of said elements, 5 it is not necessary to make several pre-folding notches. It then suffices to make a crimp initiation by crushing the amount of the U on the folded edge of the other element, before driving the roller 20 in rotation.

10 The support mandrel 17 is advantageously not driven by a motor member but by friction! between it, the wall of the elements to be assembled and the roller 20. If necessary, it is nevertheless possible to provide for individual drive of the roller 17.

The device of the present invention is very efficient and rapid in the execution of crimp assemblies. Note also that the support roller is only used for the reaction for the crushing force and that it does not support the elements to be assembled 1, 2, during the other 20 operations.

The present invention is in no way limited to the embodiments described in detail in the specification. It also covers any obvious modification I made to the device described.

Thus, the device of the invention can, for example, be integrated into a production line comprising. in addition, upstream, a molding machine to form the necessary edges.

It should be noted that the device of the invention 30 has a construction such that it can also be used to assemble elements which are not of symmetry at G revolution, such as a tank for example. In that case, ! the support 19 is rotatable and the jack 27 has a stroke such that it follows the shape of the assembly 35 * at the location of the joint.

' Have ;

Claims (10)

1. Device for assembling a hollow body by vertical crimping (simple) characterized in that it comprises a support mandrel (17) mounted on a rotary support 5 (19) suitable for the elements to be assembled (1, 2) which rest on at least three support points (5. 6, 7, 8) which are displaceable according to the dimension of the elements to be assembled (1, 2), and a crimping roller (20) composed of at least two elements (21, 22), namely a support roller (21) and a crushing roller (22), these two rollers being mounted so that they can be moved in the direction of the mandrind1 support (17) to perform a pre-folding edges by deformation between two fixed lips, these two rollers (21, 22) also being brought closer to each other to allow crimping of the edges of the elements to be assembled (1, 2). at least one of the aforementioned elements, rollers and mandrel (17, 21, 22) which can be rotated by a drive member. 2. Device according to claim 1 ca-. I 20 characterized in that the elements to be assembled (1, 2) rest on four support points (5, 6, 7, 8) arranged on two arms (10, 11) on either side of the elements to to be assembled (1, 2), said arms being orientable and adjustable as a function of the size of the elements to be assembled and fixed to the frame (3) of the machine, said arms consisting of a first part (12) on which a second is articulated part (13) whose end opposite to the part (12) comprises an articulation from which two orientable branches (14, 15) end each cha-30 cune by a small roller (5, 6, 7, 8) serving fulcrum at the U-shaped edges of the element to be assembled. 3. Device according to any one of the preceding re- ~ vendications characterized in that the support mandrel (17) is mounted on a rotary support (19) affec-35 as a suitable shape allowing the rotation of elements (2 ) curves with an angle of up to 45 ° and more. 5P 4. Device according to any one of! r · 6 IW i * î previous claims characterized in that the crimping roller (20) is composed of at least two parallel rollers, namely a support roller (21) and a crimping or crushing roller (22) having substantially the same diameter as the previous one. 5. Device according to Claim 4, characterized in that the crimping roller (20) also comprises a third roller, a pre-folding roller (23). Parallel to the two others and with the same axis as these, said 2 -0 pre-folding roller (23) consisting of an elastic material. - 5 K '. 6. Device according to any one of the re- i: preceding vendications characterized in that the crimping roller i (20) is moved parallel to its axis 15 by a jack (27). 7. Device according to any one of the preceding claims, characterized in that the rollers (21, 22 or 23) of the crimping roller are brought closer to each other by means of a second cylinder (25). '20 8. Device according to any one of the preceding claims, characterized in that the support roller (21) and the crushing roller (22) are brought together by means of a jack. 9. Device according to any one of the preceding re-vendications, characterized in that only the support rollers (21) and crushing (22) are driven in rotation by a motor member (26). 10. Device according to claim 1 characterized in that the support mandrel adapts to any shape of the elements to be assembled and that the crimping rollers are pressed against said mandrel by means of a jack which follows the shape of the elements to be assembled at the joint location. ^ ^ ί. ·