SE518054C2 - System for forming a chain - Google Patents

Abstract

The invention relates to a system, with which a chain (2), consisting of a series of closed links, can be formed from a chain extension (2'), consisting of a series of open links, wherein said chain extension (2'') is fed into abutment with and along a perihperal surface part (3b) of a rotatable disc (3), and sections of said chain extension rest against the disc at a first radius (R1), wherein said chain extension is caused by roation of the disc to pass through a link-welding and/or link-soldering unit (31), in which said open links are closed to form closed links of the chain (2). More particularly, the invention comprises: a) displacing said open links to a slightly more compact state, upstream of said link-welding and/or link-soldering unit (B, 31); b) closing the slightly compacted open links, according to a) above, to form closed links in said unit (B, 31); and c) displacing (C) said closed links to a more compacted state, downstream of said link-welding and/or link-soldering unit (B, 31).

Description

Said open links will be welded together and thereby bonded together to closed links, to form as such said chain.

TIMïMN'S PREVIOUS POSITION With reference to what is previously known in a production line specially designated and utilized for the present invention, reference is made to the contents of the international patent application PCT / SE83 / 00321, with the international patent publication number WO 84/01788.

Here is shown and described a method and a device for being able to produce allergy-free objects, especially objects formed from metals intended for a direct contact with skin parts of a living being, and which requirements the present invention also intends to meet.

Examples of such objects are, in addition to chains of various kinds with different link structures, necklaces, ankle bracelets, ear and / or nose rings, jewels, watches, spectacles, etc., where completely pure metals, especially precious metals such as gold, silver, platinum, palladium, rhodium, alloyed with optimally pure zinc, copper, aluminum, nickel or chromium and where treatments within utilized heating and cooling processing stations within the production line are performed without access to air and without any contact with surface reacting substances, such as salt or acid.

Preferably, all heating and cooling should be performed here during the utilization of a shielding gas.

The arrangement shown here uses a production line to be able to produce a number of serially oriented closed links, which together form a bendable and elongate 10- 20 15 25 25 30 35 ...- S18 054 3 šJ? Fi fÄäkä ¥ § fl L. stretched chain from a number of serially oriented chain-coordinated open links.

Existing production line processing stations are indicated here, a first which places open links as a belt to a rotatable belt, a second which welds the open links together to closed links, a third which cools down the newly welded links and a fourth which feeds cooled links from the production line. .

More specifically, it is shown that the arrangement, in order to be able to carry out the method, must here consist of a rotatably arranged table (61) in order thereby thereby allowing cold-worked objects (66), in the form of a chain with open links, to pass through a link weld. arrangement (63) or duct, during the use of a heating gas or a shielding gas (70), and a subsequent link cooling arrangement (68) and which utilizes the exhaust gases from the link welding arrangement (63), which via channels (71, 73) is conducted as a cooling and a shielding gas during the cooling sequence, whereby the displacement of the object (66) within the cooling duct takes place simultaneously with a supply of cooling and shielding gas.

In particular, Figure 7 of the said patent publication can be considered to be of importance, with regard to the prior art related to the present invention.

The prior art also includes US-A1-4,073,428.

Here, a method and an apparatus are shown and described for being able to continuously solder or weld together opposite end portions belonging to “open” links included in a chain orientation or chain stretch. 10 15 20 25 30 35 518 0544 "Here it is shown in particular that the chain orientation (4) will be fed down on a rotatable table (1), at the position (8), with a speed adjustment so that the individual links will be slightly joined or joined together. .

In this slightly joined position, the links are subjected to a welding, after which the thus joined links and the chain stretch are guided, before the solder material has cooled and hardened, by a rail (9) so that the newly welded links are further brought together slightly. TECHNICAL PROBLEM FOR THE PRESENT INVENTION Considering the fact that the technical considerations that a person skilled in the relevant technical field must make in order to offer a solution to one or more technical problems posed is initially a necessary insight into the measures and / or the sequence of measures to be taken and a necessary choice of the means or means required, the consequent technical problems should therefore be relevant in the creation of the present object of the invention. n. "f" Taking into account the prior art, as described above, it would then be seen as a technical problem to be able to designate a system, adapted to form a chain stretch from a number of open links having a number of closed links, chain and where said chain stretching is to be fed, as sub-section on sub-section, to an abutment against and oriented along a peripheral surface portion of a rotatable disc and where the chain stretch will rest with its sub-sections against the upper part of the disc. flat surface below a first radius and where said chain stretch, by the rotating movement of the disc, is adapted to pass through a link welding and / or link soldering unit, within which said open links are connected to closed links to form said chain, and thereby be able to realize the importance of and the benefits associated with, during a manufacturing process to a chain within a production line, taking into account the necessity of l which in different steps causes the individual links to shift in relation to each other.

There is a technical problem in being able to realize the significance of and the advantages associated with having the links bring together the means in steps, such as in two steps, closer and closer to each other.

There is then a technical problem in being able to realize the significance of and the advantages associated with having the links combined with equivalent means to at least two different positions, where one position shall apply to the chain stretch and one position shall apply to the chain.

There is a technical problem in being able to realize the significance of and the advantages associated with upstream said link welding and / or link welding unit via a rotatable and displaceable wheel having said open links displaced to a pre-adapted and only slightly joined position.

There is then a technical problem in being able to realize the significance of and the advantages associated with having downstream said link welding and / or link welding unit via a rotatable and displaceable wheel displacing said closed 10 15 20 25 30 35. 518 0546 links to a further merged mode.

There is then a technical problem in being able to realize the significance of and the advantages associated with allowing the displacement to a somewhat merged position, to include a predetermined share, such as a share of 10-50%, of a maximum available displacement distance, to bring mutually stretched open links to a fully assembled position.

There is then a technical problem in being able to realize the significance of and the advantages associated with allowing the displacement of said closed links to a further combined position to include a predetermined share, such as a share of 10-50% of a maximum available displacement distance to bring mutually stretched closed links to a fully assembled position.

There is also a technical problem in being able to realize the significance of and the benefits associated with allowing the displacement of open or closed links to occur by allowing the links along the flat surface of the disc to a radius different from a previously assigned radius. .

There is also a technical problem in being able to realize the significance of and the benefits associated with allowing the displacement of the open links to take place from a first radius to a second radius, where the latter is assigned a smaller value than the former.

There is also a technical problem in being able to realize the significance of and the benefits associated with allowing the displacement of the closed links to take place from a second radius to a third radius, where the latter is assigned a smaller value than the former. 10 15 20 25 30 35 518 0547 There is also a technical problem in being able to realize the significance of and the advantages associated with allowing the displacement of the links within the chain section to be chosen greater than the displacement of the links within the chain.

There is also a technical problem in being able to realize the significance of and the advantages associated with allowing said displacement of the chain to take place by means of a rotatable and radially displaceable wheel, and that said wheel is adapted to be able to absorb heat from the chain.

THE SOLUTION The present invention is thus based on a system for forming a chain stretch from a number of open links having a number of closed links, and said chain stretch being fed to a bearing along a peripheral surface portion of a rotatable disc and resting therewith. with sub-sections on sub-sections against the upper flat surface of the disc under a first radius, said chain stretching of the rotating movement of the disc being adapted to pass through a link welding and / or link-soldering unit, within which unit said open links are connected to closed links to form said chain.

In order to be able to solve one or more of the above-mentioned technical problems, the present invention now primarily directs that said displacements can take place by means of respective rotatably and radially displaceably arranged wheels.

It is further indicated that upstream of said link welding and / or link soldering unit, said open links shall be displaced to a slightly merged position, that during the specified, somewhat merged, position, said open links shall be connected to closed links within said link welding and / or link soldering. 20 25 30 35 518 054 8 unit and that downstream of said link welding and / or soldering unit, said closed links are displaced to another position, such as a further joined position.

As proposed embodiments, falling within the scope of the present invention, it is particularly pointed out that the displacement to a slightly merged position should comprise a proportion of 10-50% of a maximum available displacement distance that is possible, in order to bring mutually stretched open links to a fully assembled position. .

The invention further provides that the displacement of said closed links to a further joined position shall comprise a proportion of 10-50% of a maximum available displacement distance possible, in order to bring mutually stretched closed links to a fully joined position.

It further indicates that the displacement of open or closed links shall take place by having the links displaced along the flat upper surface of the disc to a radius which is different from said first radius.

It is further indicated that the displacement of the open links takes place from a first radius to a second radius, where the latter is assigned a smaller value than the former.

It is further indicated that the displacement of the closed links takes place from a second radius to a third radius, where the latter is assigned a smaller value than the former.

It is further indicated that the displacement of the links within the chain section is chosen to be greater than the displacement of the links within the chain.

In the case of the closed links then having the chain as displaced, a displacement adapted to this shall take place by means of a rotatable and a radially displaceable arranged wheel, and where said wheel is adapted for to be able to absorb heat from the chain.

ADVANTAGES The advantages that can mainly be considered to be characteristic of a system, adapted to be able to form a chain stretch from a number of open links, a number of closed links, is that in this way conditions have been created for a be able in a simple manner via a rotatable wheel to coordinate the distances between adjacent open links, which together form the chain stretch, before these are fed into the link welding and / or link soldering unit and that as soon as the closed links formed in the unit, in the form of a chain, leave the unit, the links of another rotatable wheel and immediately before a cooling process should be brought to a relative displacement relative to each other, such as to a further joined position.

What can primarily be considered to be characteristic of a system, exhibiting the significant characteristics associated with the present invention, appears from the characteristic part of claim 1.

BRIEF DESCRIPTION OF THE DRAWINGS A currently proposed system for forming a chain stretch from a number of open links having a number of closed links, in accordance with ø Q »-. - ~. ..- Q. . The significant features associated with the present invention will now be further described and explained with reference to the accompanying drawings, in which:. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 shows schematically and in a perspective view a production line with a number of processing stations, in order to be able to produce from a number, serially oriented, chain-coordinated open links an elongated and flexible chain formed with closed links, during use of a selected number of processing stations, shows in a horizontal view a rotatable disk used by the system, intended to transport link by link, in accordance with the instructions of the invention, during the use of a selected number of serially oriented processing stations, here designated "A "," B "; "C" and "D", show in a perspective view a proposed embodiment of a first processing station "AH I shows in a horizontal view a proposed embodiment of a second processing station serving as a link welding and / or link welding unit" B ", shows in a perspective view a proposed embodiment of a heat-conducting arrangement, serving as a third processing station 10 Figure 5 shows in a horizontal view a proposed embodiment of a link-cooling arrangement serving as a fourth processing station "D" and Figure 7 shows some examples of the mutual orientation of adjacent links at a non-merged position "1" and different merged positions "2" and "3" respectively and with mutual links oriented perpendicular to each other and in a position "4", where they are oriented resting against the upper flat surface of the disc during the passage through the link welding and / or link soldering unit.

DESCRIPTION OF THE NOW PROPOSED uwrönnzesrom With reference to Figure 1, there is thus shown a production line 1 which, from an elongated, chain coordination or chain stretch 2 'formed by a number of serially oriented open links, should be able to produce a number of serially oriented closed links formed elongated, chain 2 with the links rotatably related to each other.

In Figure 1, the serially oriented open links have been assigned the reference numerals 21 ', 22' and 23 'while the corresponding closed links have been assigned the reference numerals 21, 22 resp. 23. The same reference numerals have been assigned to the links shown in Figure 7.

The welding areas 2la, 22a, located within openings 2la ', 22a', which form the closed links 21, 22 are thus formed in a link welding and / or link welding arrangement or a link welding and / or link soldering unit 31.

The open links 21 ', 22' 23 'are to be fed down on a flat upper surface 3' for a rotatably arranged disc 3, at a position indicated by the reference numeral 3a.

The downgrading of the elongated chain coordination, with open links 21 ', 22', 23 ', 4 October 2000 filed Swedish patent application, granted is further shown and described in a the application number 00 03587-3, and which the content of the application is to be considered as a part of the present application, in order thereby to be able to clarify a suitable application for the present invention within a production line with sequential processing stations.

The elongate chain coordination 2 ', with open links, resting against the flat upper surface 3' of the disc 3 is transported via sub-sections on sub-sections through a welding or soldering station 31 serving as processing station "B", and two subsequent as processing stations " C "resp. "D" serving cooling stations 32 ', 32 and thereby feeding the elongate chain 2, with joined and closed links 21, 22, 23, along a short radius-related circular surface section 3b, corresponding to the radius "R2", downstream of the cooling station 31 and then displaced chain 2 to a circular surface section, corresponding to the radius "R3" for the disc 3.

Thus, the elongate chain 2, with said closed links 21, 22, 23, will be adapted to be transported partly in an arcuate shape along the surface section 3b of the rotatably arranged disc 3 and partly in an arcuate shape along a surface section corresponding to the radius "R3". through the cooling station 32. A deflection roller 4 provided for the cooled chain 2 is adapted to cause said chain 2 and the sub- or chain sections of the chain to be moved from the upper flat surface 3 'of said disc 3 in a arcuate radially out from said disc 3 and out over the rounded edge 3c of the disc 3.

Here, the utilization of a movement assigned to the deflection roller 4, rotatably arranged in the direction of the arrow "P1", around its center axis 4c is shown.

A grinding wheel 61 is also shown here, adapted to be able to grind from the board and any slag products stuck to its flat surface 3 '.

The chain 2 here has a sub-section 2a, which leaves the link-cooling arrangement 32 and has a section 2c which is to be bent around the deflection roller 4 and in addition a section 2e which by its own weight is to press the sub-section 2c against the peripheral surface 4a.

The deflection 2c of the closed chain 2 around the deflection roller 4 with associated arrangement constitutes a processing station in order to be able to remove slag products which are stuck on the links within the welding station 31.

With reference to Figure 2, the significant system associated with the present invention is further illustrated in order to be able to form, from a number of open links, chain stretching chain 2 and where said chain stretching 2 'is fed to an abutment 2' to form one of closed links having, along a peripheral surface portion at the position 3a adjacent to a rotatable disc 3 and thereby resting with a sub-section on sub-section 10 15 20 25 30 u »ann _14 .. against the disc under a first radius" R1 ".

The chain stretch 2 'has in Figures 2 and 3 been divided into a number of sub-sections, where the sub-sections 2a' (Figure 3) illustrate a sub-section during feed to a driven roller 4a and a counter-roller 4a ', the sub-section 2b' illustrates a freely hanging section, the sub-section 2c 'illustrates a formed arcuate shape, sub-section 2d' illustrates a section which abuts the upper flat surface 3 'of the disc 3 and which is assigned a circular arc shape with a radius of curvature of "R1", sub-section 2e' illustrates that section which adjoins and is displaced by a wheel 6 to a position adjacent to the radius of curvature "R2" and the sub-section 2f 'illustrates a section which abuts against the upper flat surface 3' of the disc 3 and which is assigned a circular arc shape 3b with a radius of curvature of "R2".

Subsection 2d 'has a link orientation that can be considered to be represented in Figure 7: "1". The arcuate sub-section 2c 'means that the individual links, when abutting against the flat surface 3' of the disc, are slightly offset from each other within the sub-section 2d ', slightly more than the position shown in said figure.

Said chain stretch 2 'and in particular the section 2f' is adapted by the rotating movement "vl" of the disc to pass a link welding and / or link soldering unit 31, within which said open links are connected to closed links to form said chain 2.

According to the system according to the invention, immediately upstream of said link welding and / or link soldering unit 31, the chain stretch 2 'having its open links and its sub-section 2d' is to be displaced from the radius "R1" to a slightly joined joint. position, illustrated by the radius "R2".

It is further indicated that the chain stretch 2 'with slightly joined links, illustrated in Figure 7 "2", is to be joined to said closed links within the unit 31.

It is further indicated that downstream of said link welding and / or link soldering unit 31, said closed links are displaced to a further joined position, illustrated in Figure 7 "3", denoted by the radius "R3".

With reference to Figure 7, the desired displacement and the related displacement distance will be described in more detail below.

Figure 7 "1" illustrates that the open links 21 ', 22' resp. 23 'assumes a maximum extended position, as does the sub-portion 2b' but not the sub-portion 2d ', and thus the links 21' resp. 23 'a maximum displacement distance, denoted "dl", is displaced towards each other.

Figure 7 "2" illustrates that the links 21 'resp. 23 'is displaced towards each other and has a distance between each other, denoted "d2", as well as the sub-portion 2f'.

Figure 7 "3" illustrates that the links 21, 22 resp. 23 are further displaced towards each other and have a distance between them designated "d3", as well as a sub-portion 2a.

The displacement, according to Figure 7 "2", to a slightly merged position comprises a proportion of 10-50% of the maximum displacement distance "d1", which can be allowed to move mutually stretched open links to a fully merged position. The displacement, according to Figure 7 "3", of said closed links to a further merged position shall comprise a proportion of 10-50% of the maximum displacement distance "dl", in order to bring the stretched between them closed links 21, 22 resp. 23 to a fully assembled position.

Figure 7 illustrates that the welding site has changed in relation to those shown in Figure 1 and is in Figure 7 located within the end portion. Figure 7 "2" illustrates that the weld material (22a) fills the space between the opposite surface portions of the link and that a slag material 22b is formed on each side of the weld material.

It is important here that this slag material 22b does not permanently connect adjacent links 21 ', 22', so the displacement from "R1" to "R2" must adhere to these conditions. Should, despite the measures taken, a permanent connection still occurs, this must be detached in a subsequent step, which will be described in the following.

Furthermore, it can be seen from Figure 2 that the displacement of the open or closed links forming the chain stretch 2 'alternatively the chain 2 can be effected by leading the links to lead to IIRZII a radius below a previous radius, such as that the links from an orientation along a first radius "R1" a second radius "R2" alternatively from said second radius to a third radius "R3".

The displacement of the open links takes place from a first radius "R1" to a second radius "R2", where the latter is assigned a well-adapted smaller value than the former. 10 l5 20 25 30 n ø ~ ~ ~ v - - I- ø anu n. 518 054 _ 17 _ The displacement of the closed links takes place immediately downstream of the link welding and / or link soldering unit 31 and this displacement takes place from a second radius "R2" to a third radius "R3", where the latter is assigned a smaller value than the former.

Furthermore, the invention indicates that a selected displacement of the links within the chain section 2 'can advantageously be chosen larger than the displacement of the links within the chain 2. This displacement difference can be selected up to 50% of the total displacement distance "dl".

It is further indicated that said displacement within the processing station "A" can advantageously take place by means of a rotatable and radially displaceable wheel 6.

Said displacement within the processing station "C" of the closed link chain 2 takes place by means of a rotatable and radially displaceable wheel 50, and that said wheel is adapted to absorb heat from the chain.

With reference to Figure 3, there is shown in perspective view the processing station "A" in Figure 2.

Thus, with reference to Figure 2, there is shown in a perspective view an arrangement, in order to be able to feed an elongated chain stretch 2 'and the individual links and sub-sections forming the chain stretch 2' to a rotating base 3, in the form of a disc.

The measurement of the chain stretch formed as a semi-finished product over the rotatable disc 3 arranged, 4a, 4a '2' takes place from a feed wheel (or roller) and down towards said disc 10 15 20 25 30 518 054 _ 13 _ For a clarifying purpose, the chain is divided into a number of sub-sections, as already described above.

Figure 2 illustrates that the lowering of link on link or sub-section on sub-sections of the chain stretch 2 'will take place so that these will rest against a peripherally oriented circular first surface section 3a' or stretch of a disc 3 belonging to the disc, the chain links of the feed roller 4a is so higher adapted than the disk assigned speed "vl" for said first surface section 3a 'that hence mutually oriented link on link will only be able to rest against said disc along said first surface section 3a'.

A means 6 located adjacent to the disc 3 and said first surface section 3a 'is arranged to cause thus linked link on link radially inwardly displaced along the disc to a circular second surface section 3b, (corresponding to the radius "R2" for said displacement movement from the first surface section the tether 3 'of the second surface section 3b is allowed to orient the chain and its links to a position where they are joined and adjusted (Figure 7 "2") solder treatment. 4a at a speed which causes the links to bend in a bend 2c 'towards said first surface section 3a' and that a distance measuring means 5 (figure 3) is to be arranged so as to affect the speed of the feed roller 4a that said bend 2c 'becomes constant or in each cases substantially constant. f ', is constituted by a rotatable disc or roller 6a, where the peripheral speed of said disc is adapted equal to, or substantially equal to, the speed "v2" of the second surface section 3b.

Furthermore, the embodiment according to figure 3 indicates that said feed roller 4 should be in the form of two coordinated rollers 4a, 4a ', with the peripheral surface of the nearest disk 4 located at a distance above the disk 3 corresponding to or slightly below said diameter 4 of said roller 4a' .

The curvature 2c 'is adapted to vary depending on the link type and weight.

Thus, figure 3 schematically shows a measuring equipment 5, which via an electromagnetic beam 5a is adapted in a known manner to measure the distance between the position of the equipment 5 and the bend 2c 'in order to influence a motor 4b to drive the roller 4a with an increasing distance via a line 5b. a slightly lower rotational speed, while a shortened distance to the position will via the equipment 5 influence the motor 4b to slightly increase the speed, in order to be able to keep the coordination of the coordinated links constant.

Within sub-section 2c 'and towards sub-section 2d' there is thus a small, say below 10% of the distance "dl", however significant merging of the individual links from the fully extended position.

The rotatable disc 6 is also slidably arranged in a radial direction assigned to the disc 3, in order thereby to be able to regulate the radial distance "a" between the first surface section 3a 'and the second the surface section 3b, in order thereby to be able to adjustably adjust the adjacent links to a position where they are joined according to Figure 7 "2", so much so that any slag deposits do not become obstructive.

A processing station "A" comprising an arrangement at a chain feed is shown in more detail and described in the Swedish patent application filed on October 4, 2000 under application number 00 03587-3 and which the contents of the application are to be considered as part of the present application in order to thereby clarify a suitable application for the present invention within a production line belonging to sequential processing stations "A" - "D".

Referring to Figure 4, there is shown in a plan view a link welding and / or link soldering unit 31.

The present invention thus utilizes a link welding arrangement 31, useful within the production line shown in Figure 1, with the processing stations indicated therein.

The link welding arrangement 31 offers in the transport direction caused by the movement of the disc 3 for the open links a number of sequentially structured gas flames, each adapted to supply to resp. link an adapted heat energy.

The successively generated and thereby slowly increasing heat energy (temperature) from each of these sequentially structured gas flames must thus be adapted to be able to assign to each of the open links a predetermined, or at least substantially determined, temperature step ring during its transport through the link-welding arrangement 10 15 20 25 30 518 054 _ 21 _ get 31.

It is thus not just a question of a gradually increasing heat content with equal contributions from resp. gas flame but through this an addition of heat energy is offered from resp. gas flame which is to give a time-related heating curve favorable for the final welding.

In this case, a more constant temperature is offered, slightly below a temperature value applicable to the welding, immediately before the welding itself.

The gas flame last located in the direction of transport, or a number of group members' last located and coordinated gas flames, shall be adapted to assign resp. link such a heat supplement and such an increased temperature that thereby activates and terminates the welding process in that supplied welding material and / or flux melts into the open portion of the open link, delimited by link-associated surface portions.

According to Figure 7 "4", a proposed positioning of the individual links is shown so that the upper part can be assumed to be slightly warmer than the lower part and thus the openings for the links can be assigned a temperature adapted for melting and welding.

These surface portions are located so close together that occurring capillary forces will contribute to the welding or soldering.

The selected gas flames must be coordinated with each other so that, depending on a temperature associated with the chain link, the temperature, which at the end of this processing station can be around 100 ° C, can be so controllably arranged that the links will have a predetermined temperature at the end of the link welding arrangement 31 and which temperature is sensible by a temperature sensitive sensor 231 and fed to a control unit for a suitable control of the energy supply of the gas flames. or speed control of the rotational speed of the disc 3.

Referring to Figure 4, there is shown the outer shape of the machining station in the form of a link-welding arrangement 31 and which can then be assumed to consist of a housing 3la fixedly attached to a chassis.

An end opening 3lb for the housing 3la is adapted to be able to enclose resp. open link, as these 23 ', 22' 21 'are fed into the arrangement or unit 31.

It is assumed that the link structure in the practical application has a more rectangular cross-section with one long side abutting against the flat surface 3 'and the offset facing upwards while the misaligned short sides form a right angle to the flat surface 3'.

Said gable-associated opening 3lb is adjustable by means of three motor-driven, size-regulating opening openings, gates.

A gable belonging to the second opening 3lb 'for the housing 3la is adapted to be able to enclose the chain 2 provided with closed links 23, 22, 21 with as little play as possible.

This gable-associated opening 3lb 'is adjustable by means of three motor-driven, opening size adjusting, gates.

It also falls within the scope of the invention to be able to create such conditions for the said heat supply and temperature control, described above, that the gas flames can be raised and lowered.

Figure 4 shows in this respect that a frame 3lf can, inside the housing 31, be raised and lowered by means of screw devices, driven by a driven belt of a motor. Via a control unit, the current height of the gas flames is regulated in dependence on a temperature sensing by means of the sensor 231.

A gas pressure connected to the gas flames must at the same time be adjustable in order to thereby allow the said heat supply and temperature control to be adapted to a predetermined value.

Another possibility lies in having the rotational speed of the disc 3 regulated.

A link welding arrangement 31 is shown in more detail and described in a Swedish patent application filed on November 7, 2000 under the number 00 04064-2 and which the content of the application is to be regarded as part of the present application, in order thereby to clarify a suitable application for present invention at a production line with sequential processing stations.

Referring to Figure 5, there is shown in perspective view a heat-conducting arrangement, which represents the processing station "C" in Figure 2.

Referring to Figure 6, there is shown in a plan view a cooling 10 15 20 25 30 518 054 šj? Äf'ÄE¿JIäk? Arrangement 32, which represents the processing station "D" in Figure 2.

The present invention thus utilizes on the one hand a link cooling arrangement 32 'serving as a heat dissipating arrangement, and on the other hand serving as a link cooling arrangement 32 useful within the production line shown in Figures 1 and 2, with the processing stations indicated therein.

The link cooling arrangement 32 consists of a housing 32a shown in Figure 6, with an inlet opening 32b in an upstream end portion 32c and an outlet opening 32b 'in a downstream end portion 32d.

In particular, Figure 6 shows the orientation of the heat dissipating arrangement 32 'used for the invention.

It can be seen from this that upstream of said link-cooling arrangement 32 and downstream of said link-welding arrangement 31, the heat-dissipating arrangement 32 'is present from the serially oriented closed links.

Said heat dissipating arrangement 32 'consists, according to figure 5, of a rotatably arranged wheel 50 and where the wheel can consist of copper and has its axis of rotation 50' placed next to, but nevertheless outside, an edge 3c belonging to the disc 3.

The wheel 50 has a hat-like shape, with a brim 50b oriented close to said disc 3, and is intended to be able to abut supportively against the newly welded closed links 21, 22 and 23. 10 15 20 25 30 - »<~ Q -. . .-. -. n n; An outer boundary surface 50b 'assigned to the board 50b, for a metallic contact abutment with and heat dissipation from the closed links, is adapted with a shape which connects to the shape of the closed links to facilitate a heat transfer from the links to the board 50b. Thus, this surface should be flat at links with a distinctly flat structure with respect to edges- H8 ..

The enclosing angle of the links around the wheel 50 and its rim 50b is selected to be between 30 and 50 °, preferably about 40 degrees.

A rotation shaft 50 'assigned to the wheel 50 is located at a distance "b", of between 10 and 50% of the radius "R" of the wheel, outside an edge 3c belonging to a disc 3, preferably about 40%.

The board 50b is assigned a width corresponding to between 15 and 50% of the radius "R" of the wheel, preferably about 30%.

Said hat-like shape 50a has been assigned a height above the board 50b corresponding to 40-80% of the wheel radius "R", preferably about 60%.

Said hat-like mold 50a is placed over a disc 51 provided with a carrier.

The carrier consists of a screw fixed in the hat-shape 50a, the head of which is fitted in a hole on the disc 51.

Said hat-like shape 50a is pressed by a resilient means in a direction towards said disc with an adapted small force. This attachment is intended to provide a movement of the hat shape 50a, caused by irregularities in the surface 3 'for 10 15 20 25 30 "." .. .... ..._ ... ...._. ... .... ... ...._ .... .... N. .... . . . . . . . . . .... . ..._. .... .. _ ... _ _ 518 054. .... m .. ". m. _26_ skivan 3.

Said board 50b is provided with a peripherally oriented wear edge facing the disc 3.

The wheel 50 is provided with a number of holes 53 within the cap mold 50a for the passage of a cooling gas or the like.

The orientation of these holes 53 is distributed around the top surface section of the entire hat shape.

Said carrier-provided disc 51 is also provided with a number of holes for the passage of a cooling gas or the like.

The halved wheel 50 and the carrier disc 51 are provided with corresponding hole structures and these may be laterally oriented or corresponding.

A sleeve 60 is adapted to circulate said entrained disk 51 for a supply of a cooling gas or the like to the disk 51 and the wheel 50.

It is further important that when newly welded links in the unit 31 leave the unit, they abut against the edge of the wheel 50 in an oblique direction and this shock will be able to loosen any stuck slag accumulations while the individual links rotate during cooling towards the wheel 50 and what rotating movement prevents slag accumulations from retaining adjacent links.

A heat dissipating arrangement, according to Figure 5, is shown in more detail and described in a Swedish patent application 00 04164-0 filed on November 14, 2000, and which the contents of the application are to be considered as part of the present invention. in order thereby to clarify a suitable application for the present invention within a production line with sequential processing stations.

Figure 6 shows the cooling arrangement representing the processing station "D" in Figure 2.

The chain 2 is in Figure 2 divided into a number of sub-sections. A sub-section 2f emerges from the unit 31, a sub-section 2g connects to the edge 50b 'of the heat-deflecting arrangement.

The chain 2 has in figure 6 a sub-section 2a, which leaves the heat-cooling arrangement 32. A sub-section 2c is to be bent around the deflection roller 4 and in addition a section 2e which by its own weight is to press the sub-section 2c against the peripheral surface 4a.

The deflection 2c of the closed chain 2 around the deflection roller 4 with associated arrangements constitutes a processing station for being able to remove slag products which, despite previous measures, have become stuck on the links within the welding station 31.

This arrangement is shown in more detail and described in a Swedish patent application filed on October 25, 2000, assigned the application number 00 03879-4, and entitled "Arrangements for being able to remove slag products" and which the contents of the application are to be regarded as part of the present application, in order thereby to clarify a suitable application for the present invention within a production line with sequential processing stations.

In Figure 6, the housing 32a has been assigned an outer shape that connects to a portion of a torus shape.

Adjacent the downstream end portion 32d are a number, illustrated herein as three, of connections 32e, which are connected to hoses for conducting cooling fluid.

Adjacent to the upstream end portion 32c there is a connection 32f 'intended to supply inert gas cooled to the arrangement 32 via a connection.

This cooled inert gas consists of a divided proportion of the exhaust gases formed within an upstream link welding arrangement 31.

Connections 32e 'are attached to the housing 32a next to the end portion 32c to divert fluid. Attached to the housing 32a next to the end portion 32d is a connection 32f 'for diverting exhaust gases.

The arrangement 32 consists partly of one or more, in the exemplary embodiment illustrated as three, pipe sections.

In the case of a pipe, this must be wound tightly with a constant radius of curvature and a constant pitch, and the pipe thereby forms a helical shape.

In the case of two pipes, these must be oriented parallel and wound tightly with a constant radius of curvature and a constant pitch, and each of these pipes forms its helical shape with a pitch twice as large as that of a pipe.

The embodiment indicates the utilization of three tubes, with a constant radius of curvature and with a pitch so adapted that two further such tubes can be inserted into helical lines. a u. s n n n _. . f u p e. 1. . -. - - - _. . -n- - n. -. . -. - - .... . n .. - a o n a u q. n -. . . 0 ß 'I n n nu: u »no nu .. v _29- formen.

Such an arrangement will advantageously utilize gas-conducting flanges with offset gas-conducting surfaces.

Each flange has here been assigned a constant radius of curvature, substantially corresponding to the radius of curvature of a virtual cylinder enclosing the tube. Here, too, a pitch is shown so adapted that two additional flanges can be inserted into the helical shape.

The coordination of three pipes with three flanges is thus a requirement with this embodiment.

An inner edge of the flange is adapted to cooperate with the pipe and the outer edge of the flange associated with it is adapted to cooperate with the inner surface of the housing 32a.

Thus, the present invention utilizes one, or a number of, helical gas-conducting surfaces and which inwardly facing edge of the surfaces is adapted to cooperate with a helical tube and more particularly oriented between adjacent tubes.

These pipes are thus intended to conduct a fluid intended for cooling, such as in the form of water, and to divert heat energy absorbed by the flanges from the newly welded links.

The gas-associated closed links 21, 22, 23 of the chain-linked 2 are adapted to pass through recesses formed in the gas-conducting surface. The flange (and of course also other flanges) has a flange portion located within a surface area adjacent the disc 3 and the links supported by this disc pass through a recess formed in the unit 31, the dimensions of which are adapted to slightly exceed the cross section of the links.

The housing 32a is thus formed next to the disc 3 with a slot for forming said recesses.

Said recesses are assigned a curvature "R3" corresponding to a radius of a part of the rotatable disc 3 assigned.

Said gas-conducting surfaces are adapted via margins for a heat-conducting interaction with said pipe within an area located within a boundary area between adjacent pipes.

The exhaust gases within said housing are assigned a flow direction which is selected opposite a selected flow direction for said fluid through said pipe section.

Said helical gas-conducting flanges with their surfaces are in number selected from between 2 and 5 parallel-related continuously screwed wall portions.

Said helical fluid conducting pipes are in number selected for between 2 and 5 parallel-related continuously screwed pipe sections.

Said housing 32a is assigned an extension along the peripheral surface area of the disc 3 corresponding to an angle of between 110 and 140 degrees, preferably about 130 degrees. The housing 32a has been assigned a diameter (D1), to a disk assigned diameter, values are shown to be between 5/45 and 10/45, such as about 6/45. which in relation to the invention is of course not limited to the embodiment given above as an example but can undergo modifications within the scope of the inventive concept illustrated in the following claims.

Claims (10)

10 15 20 ø o n ø u. n ~ o exercises a n. ø o; 518 054 _32_ Patent claims 1. l. System for forming from one, a number of open links having, (2 ') one. chain (2) and wherein said chain stretch is fed chain stretch a number of closed links to a bearing along a peripheral surface portion (3b ') of a rotatable disc (3) and thereby rests with sub-sections against the disc (3') below a first radius ( R1), said chain stretching of the rotating movement of the disc being adapted to pass one (31), said open links being connected to closed links for car link welding and / or link soldering unit within which part of said chain, a) upstream of said chain link welding and / or link soldering unit (31) links to a slightly joined position, said open b is displaced (A) that in a position slightly joined according to "a" said open links are connected to closed links within said unit (B, 3l). ) and c) downstream of said link welding and / or link welding unit (31), said closed links (C) are moved to a further joined position. characterized in that said displaceable wheels (R1 to R2, and R2-R3) displaceable wheels take place by means of respective rotatable and radial (6,50). 2. A system according to claim 1, characterized in that the displacement to a slightly converged position comprises a selected proportion, such as 10-50%, of the maximum displacement distance for bringing mutually stretched open links to 518 054 _ 33 _ a fully merged mode. A system according to claim 1, characterized in that the displacement of said closed links to a further joined position comprises a selected proportion, such as 10-50%, of the maximum displacement distance to bring mutually stretched closed links to a fully joined position. A system according to claim 1, 2 or 3, characterized in that the displacement of open or closed links is to take place by moving the links to a radius below said first radius. System according to claim 2, characterized in that the displacement of the open links takes place from a first radius (R2), smaller value than the previous one. to a second radius where the latter is assigned one System according to claim 3, characterized in that the displacement of the closed links takes place from a second radius (R3), less value than the previous one. to a third radius where the latter is assigned one System according to claim 2 or 3, characterized in that the displacement of the links within the chain stretch is selected to be greater than the displacement of the links within the chain. System according to claim 1, characterized in that the displacement takes place by means of a rotatable and radially displaceable wheel is adapted to absorb heat from the chain. 9. A system according to claim 1, characterized in that welded links are adapted to abut against a wheel downstream of said unit 10 15 20 25 30 518 054 34. A system according to claim 10, characterized in that said links abut obliquely against a peripheral surface assigned to the wheel.