US3465568A - Method for embossing repeated patterns in strip material,preferably metal strip and means for carrying out the method - Google Patents

Method for embossing repeated patterns in strip material,preferably metal strip and means for carrying out the method Download PDF

Info

Publication number
US3465568A
US3465568A US614926A US3465568DA US3465568A US 3465568 A US3465568 A US 3465568A US 614926 A US614926 A US 614926A US 3465568D A US3465568D A US 3465568DA US 3465568 A US3465568 A US 3465568A
Authority
US
United States
Prior art keywords
webs
embossing
web
embossed
pressure medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US614926A
Other languages
English (en)
Inventor
Karl Gunnar Jonason
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Svenska Metallverken AB
Original Assignee
Svenska Metallverken AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Svenska Metallverken AB filed Critical Svenska Metallverken AB
Application granted granted Critical
Publication of US3465568A publication Critical patent/US3465568A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • B21D53/045—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal by inflating partially united plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49366—Sheet joined to sheet

Definitions

  • the present invention relates to a method for embossing repeated patterns in strip material, preferably metal strip, at suitable temperatures, at least two material webs in superimposed relationship being advanced intermittently and subjected therebetween to the action of a pressure medium, in predetermined zones during the repeated stoppages of the Web material, the said pressure medium pressing out the desired pattern in relief, whereupon the work piece on which the pattern has been embossed is separated and the working sequence repeated.
  • the embossing operation is effected intermittently for each pattern, by forcing the webs apart at some suitable point along the edges of the same and injecting the pressure medium between the webs at this point.
  • the pressure medium forces its way through flow paths which have been previously disposed between the webs, and presses out relief patterns in the walls along said path, while remaining zones of the said webs are sealed oif from one another and prevent the pressure medium from entering therein.
  • Normally only one pattern is embossed at a time, it being necessary to cut-ofi' the supply of pressure medium to the following portions of the continuous webs, a procedure which is eifected by means of so-called holder plates which clamp the Webs together at some suitable point in the direction of feed, behind the embossing zone.
  • the pressure is relieved after each embossing operation, whereupon the embossed zone of the web is severed transversely of the webs, and removed so as to prepare a place for the intermittently advanced web so that the next pattern can be embossed.
  • an opening must be made manually between the two webs.
  • the invention is mainly characterized in that a passage communicating with the adjacent, unembossed portion of the web is formed in conjunction with the step of embossing a pattern on the preceding web portion, and that each embossed Web portion is separated from the web material, the communicating passage being parted in conjunction therewith so that an opening is formed in the adjacent Web portion, after which the source of pressure medium is connected to the said opening.
  • the invention also includes an arrangement for carrying out the method, which is mainly characterized by a delay station wherein a determined portion of the advanced material web is periodically stopped so that it can be embossed in conformity with the desired pattern, the said station being designed with two opposing surfaces which restrict the extent to which the material is distended and the shape of the embossed pattern, and by holder means which are capable of being urged against the webs and which, at least during the embossing operation, close the pressure-medium communicating passage, leading to said adjacent unembossed portion of the web, and by cutting means movably arranged in front of said station and intended to cut embossed, finished portions of the web from the portion of the web located at that moment in the station, said means cutting along a line which crosses the communication passage at a desired position between the ends thereof so that an opening is formed in the portion of the web located in the station, the cut, finished web portions being removed and a nozzle capable of being connected to a source of pressure medium being movable into and out of sealing engagement with said opening.
  • FIGURE 1 shows in perspective a diagrammatical view of a machine for carrying out the method according to the invention, the said machine having been provided with essential means for effecting a continuous, semior fully automatic embossing operation when intermittently advancing, for instance, two metal webs of which one is freely arranged upon the other.
  • FIGURE 2 shows a cross section of an embodiment of an arrangement, included in the machine, to restrict the extent to which the pattern is distended, as well as a holder plate intended to cut ofi the supply of pressure medium to the portions of the webs not being embossed.
  • FIGURE 3 shows a section of a modified embodiment of the arrangement according to FIGURE 2.
  • FIGURE 4 shows a further modification of the arrangement shown in FIGURES 2 and 3.
  • FIGURE 5 shows in perspective, by way of an example, a gas burner for separating the embossed portion of the web.
  • FIGURE 6 shows, in perspective, a view of a modified arrangement, in the form of shears for clipping off the embossed portion of the web.
  • FIGURE 7 shows diagrammatically a type of screw nozzle adapted to be inserted into an inlet opening formed in the next portion of the Web to be embossed subsequent to its being advanced into the delay station, said inlet opening being formed in conjunction with the embossing of the pattern in the preceding portion of the Web.
  • FIGURE 8 shows another alternative of an insertion nozzle, intended for the same purpose as the nozzle according to FIGURE 7 and provided with a sealing means.
  • FIGURE 9 shows a simplified form of a similar nozzle not provided with special sealing means.
  • FIGURE 10 shows diagrammatically and in perspective a machine which substantially coincides with the machine shown in FIGURE 1 but which is somewhat modified for the purpose of working with webs of material which have been previously provided therebetween with the outlines of the pattern to be embossed and joined together.
  • FIGURE 1 shows a supporting member 1 on which are rotatably mounted two shafts 3 and 4 each supporting a roll of strips 5 and 6, comprised of metal, plastic or the like.
  • a further supporting member 7 presenting two vertical posts 8 and 9, of which the first mentioned post 8 is suitably displaceable towards and away from the post 9 and capable of being locked in an adjusted position, so that the distance between the two posts can be set in accordance with the width of the material coiled on the drums 5 and 6.
  • the two posts there is nothing to prevent the two posts from being stationary and arranged at a fixed distance apart.
  • the posts 8 and 9 also form bearing supports for a feeder mechanism which, in the illustrated example, has two driven rolls 10 and 11 and a backing roll 11a disposed beneath rolls 10 and 11.
  • the rolls 10, 11 and 11a are driven, via a gear 13 and shafts 14, 15 extending therefrom, by an electric motor 12.
  • the motor is adapted to be driven intermittently; this may be effected automatically by programming.
  • the webs 16 and 17 are uncoiled from the coils 5 and 6 and passed together, freely positioned one on top of the other, between the guide posts 8 and 9 and between firstly the roll 11a and secondly the two rolls 10 and 11 into an apparatus which is positioned in front of the rolls and in which the web material is embossed according to the invention.
  • the apparatus mainly comprises an elevatable die 18 provided with a centrally positioned upwardly projecting support surface 19 on which determined lengths of the intermittently advanced webs 16 and 17 are periodically stopped, to permit the embossing operation according to the invention to be carried out.
  • Located above the die 18 is a stationary solid block 20, provided with a recessed backing surface at 21.
  • the shoulder 22 formed on each side of the block 20 projects down at the side of the sup port surface 19 which can be made to abut direct against the backing surface 21, or alternatively be stopped or fixed at a determined distance from the same. This can be effected, for instance, by means of distance pieces inserted between the surfaces, or by means of lugs or shoulders projecting out from one or the other of the surfaces or from them both.
  • the two surfaces Since according to the invention, it is intended to utilize the two surfaces as a means for restricting the extent to which the material is the relevant web portion or portions 16, 17 to be embossed is distended, several alternative designs in the structure of the two surfaces 19 and 21 may be applicable. Thus, in the simplest construction it may be the intention to emboss the portions of the web located in the described apparatus so that together they obtain a form which may be compared with the outer contours of a cushion.
  • the one surface 19 or 21, for example may be provided with a continuous rectangular strip, projecting out from said surface and which is pressed into contact with the webs 16 and 17, against the reaction of the other surface.
  • the one web portion Upon ejecting a pressure medium in between the portions of the web which have been mechanically pressed together in the manner described, the one web portion is urged against the opposing backing or support plane, whereas the second web portion abuts its own support surface and cannot be distended.
  • the edge of the above mentioned strip thus defines the outer contour of the embossed pattern while at the same time holds the webs sealingly compressed against each other along its pressure plane, so that the pressure medium can only act within the confines of the strip.
  • the strip-frame can be modified to suit the configuration of any required pattern. Further, several strips may be arranged on the support or backing surface for the purpose of providing a pattern and for sealing the web portions, in the manner disclosed above.
  • both portions of the web it is possible to arrange complementary strips of congruent shape on both surfaces, the two web portions being sealingly compressed together by the strips while situated at a distance from their respective reaction surfaces, and urged into abutment with the latter by the pressure medium
  • one or the other, or both of the two surfaces may be engraved, as shown with double dotted lines 23 in FIGURE 1, the reaction planes, prior to the embossing operation, being compressed together with the portions of the web lying therebetween.
  • the material of the web portions is only pressed out at those positions where the engraving is located, and distends to form the pattern.
  • the embossing operation there are two important requirements which must be fulfilled to enable the embossing operation to be confined to those particular web portions which are at that instance located in the described apparatus.
  • the possibility must be found of closing the path of the pressure medium to subsequent portions of the webs and an inlet path for the pressure medium must be provided, leading to the zones in the Web portions fed into the apparatus, to be embossed.
  • the first requirement can be fulfilled by using a simple holder device, extending transversely across the webs. This may be a separate device which may also be separately operated, or may comprise a strip-like shoulder located on one or both of said surfaces, 19, 21.
  • an inlet channel for the pressure medium can be defined by strips positioned on the backing and support surfaces, or alteinatively one or both of the said surfaces may be engraved so that the web portions can be parted at this point and the pressure medium nozzle inserted.
  • FIGURES 2 to 4 comprise sections of alternative embodiments of the two surfaces 19, 21, taken in the direction in which the webs are advanced.
  • FIGURE 2 can be said to illustrate the instance where the two web portions 16a and 17a, one superimposed on the other, are to be distended between the die 18 and the block 20 to form a cushion-like object, the web portions being held in certain spaced relationship leaving a gap 24 which is later filled when the pressure medium is injected between the web portions, via the inlet opening 25 formed during the preceding embossing operation.
  • the distance between the two surfaces is maintained by the two shoulders or strips 25a and 26, located on said surfaces.
  • the shoulders or strips form, at the same time, holder members which prevent the pressure medium from continuing backwards past the same, i.e. in the opposite direction to which the webs are being advanced.
  • section according to FIGURE 2 can be said to represent alternatively the instance where the two surfaces 19, 21 are each provided with upwardly projecting, patterning strips of complementary configuration.
  • FIGURE 3 shows the alternative in which the backing surface 21 is provided with a tortuous engraving 27, whereas the opposing support surface 19 is completely smooth.
  • the two plane surfaces of the members 19, 21 can be used as holder plates, since on being urged against the portions of webs 16a and 17a lying therebetween they compress said web portions sealingly over their entire surface, with the exception of the locations in which the said surfaces have been engraved.
  • FIGURE 4 shows the alternative in which the two surfaces 19 and 21 are provided with complementary engravings 28 and 27 respectively, whereby the two web portions 16a and 17a are distended into the respective engravings and provided with embossed patterns.
  • the first block 20 rests on an underlying plate or slab 29 through the intermediary of four posts 30, positioned in the four corners of said plate (only two posts being shown in the figure).
  • the posts 30 serve, at the same time, as guides for the vertically movable block 18, which is in turn supported by a hydraulic piston 31 operated from a hydraulic cylinder 32 which is supplied with hydraulic pressure medium via a delivery conduit 33.
  • the block 18 can be made to coact With the block 20, for the purpose of carrying out some of the alternative functions, described very generally above, in conjunction with embossing a pattern, in the described apparatus.
  • arrangements are preferably incorporated which permit programming of the movements of the block 18 in conjunction with the intermittent advancing movement of the webs.
  • FIGURE 1 illustrates a stage in the process wherein a double-layer web portion 35, in which a tort-nous pattern has been embossed, has been advanced away from the surfaces 19, 21 on a roller belt 36, .at the same time as a new, double-layer web portion has been moved into the position previously occupied by the preceding portion, i.e. between the surfaces 19 and 21, and securely clamped therebetween.
  • a communicating passage 37 in accordance with the most important novel feature of the invention, extends rearwards up to the edge of the clamped surfaces 19, 21 and terminates within the following web portion at that point where pressure medium will later be injected for the purpose of embossing the pattern 23 in the said double-layer web portion situated between the two surfaces 19 and 21.
  • the embossed web portion 35 Before the next portion of the web can be embossed, the embossed web portion 35 must be severed from the web and, for instance, placed on stack 38 of finished articles, so that the inlet opening 39 formed during the preceding embossing operation and leading to the pattern 23 can be reached and the source of pressure medium connected thereto.
  • the leading web portion e.g. the portion indicated by the reference numeral 35
  • the leading web portion has been cut off transversely to the longitudinal direction of the web without leaving an embossed portion. Consequently before connecting up the source of pressure medium it has been necessary to force apart the compressed webs in order to obtain an opening leading, for instance, to the portion, 23 to be embossed.
  • This task is both difficult and time consuming, requires skilled manual effort and, last but not least, constitutes a definite obstruction to automatizing the whole process.
  • the general object of the invention is thus to eliminate this obstruction and to enable the process to be made fully automatic.
  • the embossed communication passage 37 is parted at a convenient point between its ends. Consequently an opening is automatically obtained, into which a nozzle for the pressure medium can be inserted without it being necessary to create said opening manually. In this way it is also possible to coordinate the separating and embossing operation in automatic coordination, which increases the precision and accelerates the production rate.
  • a circular saw 40 is used to part the communication passage; the saw being mounted on a beam 41 which is guided for movement by two guides 42 and 43 positioned in a frame 44.
  • the circular saw is driven via a suitable form of transmission means (not shown) by an electric motor 45 resting on a support bracket 46 attached to the beam 41.
  • a double-action pressure piston arrangement 47 positioned above the guide 42 is a double-action pressure piston arrangement 47, the projecting piston rod 48 of which is connected, via a coupling 49, with the beam 41.
  • the said beam can thus be driven with reciprocatory movement so that the circular saw 40 cuts through the discharged web portions and parts the finished article from the remainder of the web along a line passing through the communication passage 37.
  • FIGURE 1 An example of how this can be used is illustrated in FIGURE 1 in which the reference numeral 50 indicates a stationary bracket which at its upper end pivotally sup ports a support arm 51.
  • the support arm is pivoted by means of a double action type pressure piston arrangement 52, the piston rod 53 of which is pivotally connected at 54 with the arm 51.
  • the free end of the arm is provided with a rearwardly directed pressure medium nozzle 55, which is connected via a pressure line 56, to a pressure medium source (not shown).
  • the dimensions and positioning of the pivot arm 51 are so calculated that the nozzle 55 feels its way into the opened passage between the webs, at the opening 39, when the arm swings downwards.
  • an immovable nozzle provides suflicient scaling in itself, against the walls of said opening when the pressure medium is caused to fiow from the nozzle into the opening.
  • the nozzle 55 in FIGURE 1 is, for this purpose, rotatably mounted on the arm 51 and can be turned by means of, for instance, a chain 57 driven by an electric motor 58, secured on the arm 51.
  • the motor is suitably of the reversible type so that the nozzle can be turned in either direction.
  • the connection between the nozzle and the source of pressure medium is suitably program controlled relative to remaining functions of the process.
  • FIGURE 5 shows an alternative to the cutting means according to FIGURE 1, comprising a cutting torch 59 intended to replace the saw 40, in FIGURE 1.
  • the flame 60 cuts the webs along a transversal line 61, cutting the communication passage 37 in such a way that an opening to the next, unembossed web portion is left at 62.
  • FIG URE 6 Another alternative cutting means is shown in FIG URE 6, said means comprising a shearing device having a lower, suitably stationary blade 63 and an upper movable blade 64.
  • a sharp cutting point 65 is arranged on the upper blade, the said point 65 being so positioned that it only comes into contact with the communicating passage 37 during the cutting process.
  • FIGURES 7 to 9 show a few alternative designs of the pressure medium nozzle 55 in FIGURE 1.
  • FIGURE 7 illustrates once again the pressure medium conduit 56 and the nozzle 55, which is mounted for rotation on the arm 51, the movement of said nozzle being produced by a chain wheel 66 driven by the chain 57, shown in FIGURE 1, in either direction.
  • the tip 67 of the nozzle itself is provided with a screw thread type sealing flange 68 intended to sealingly close the nozzle, during rotation, to the inner walls of the exposed opening between the webs.
  • FIGURE 8 Another example of a nozzle is shown in FIGURE 8, wherein the body 55 of the nozzle is unrotatably mounted and provided with a conical nozzle tip 69, around the base of which is positioned a gasket 70 intended to be urged sealingly against the edge of said opening during passage of the pressure medium therethrough.
  • FIGURE 9 shows substantially the same arrangement as FIGURE 8 with the exception that the gasket 70 has been omitted.
  • the shoulder 71 forms the necessary sealing means, and replaces the gasket means.
  • the process can be effected without joining the webs together, the severed portions of the webs, loosely positioned one on top of the other, remaining in free superimposed relationship after the embossing process has been carried out.
  • the loose portions of the webs may, however, be joined together later, using methods suitable for the purpose.
  • FIGURE 10 shows only one reel on which is coiled two metal webs previously welded together by rolling, between which webs a coating of material has been applied in a continuous pattern along the inner faces of the webs, the said material preventing the surfaces thus treated from being welded together during the rolling process. This obviates the necessity of arranging holder means on the blocks 18 and 20 around the pattern when embossing.
  • the blocks are capable of being adjusted to a determined distance between the two surfaces 19 and 21 so that the extent to which the pattern 73 is distended upwards can be regulated by the same. Since, in this case it is not necessary to use engraved reaction surfaces or strips as in the case of the arrangement according to FIG- URE 1, the pressure medium must be prevented in some other way from flowing back towards the reel 72 and embossing the continuous, pre-arranged pattern 74 located behind the blocks 18 and 20.
  • a simple solution to this problem is the use, in accordance with FIGURE 10, of a separate holder means 75 suitably supported by a piston rod 76 projecting from a stationary pressure piston arrangement 77.
  • the method according to the invention can be adapted with cold working as well as with hot working of the webs.
  • a method for embossing repeated patterns in strip material formed from at least two superimposed material webs comprising intermittently advancing said strip material through an embossing zone, injecting a pressure medium between predetermined regions of adjacent webs in said embossing zone to cause the webs to be deformed in said regions and become embossed, pericdically cutting the strip material after it has passed through said embossing zone and has undergone an embossing operation, said strip material being cut to leave a portion thereof extending from said embossing zone such that the embossed regions of the already embossed strip material each provide a communication passage extending to the regions of the strip material which is next to be embossed, said pressure medium being injected to the latter regions of the strip material to be embossed via each said communicating passage.
  • each communication passage is closed to the following webs about to enter the embossing zone for at least the length of time which the preceding webs are kept under pressure in said embossing zone.
  • a method as claimed in claim 1 comprising retaining the webs to be embossed in said embossing zone between two flat support surfaces in determined space relationship adapted to restrict the extent to which the webs are deformed by the distance between said surfaces.
  • a method as claimed in claim 3 comprising varying the distance between the support surfaces to regulate the extent to which a pattern is formed by said predetermined regions.
  • a method as claimed in claim 1 comprising retaining the portion of the webs to be embossed between two support surfaces capable of being urged towards each other, at least one surface being engraved in such a way that the web is forced by the pressure into the engraving and substantially conforms to the walls of the same.
  • each communicating passage is closed by applying a press die tool to the end of the passage.
  • a method as claimed in claim 1 wherein a portion of the strip material is intermittently fed between support surfaces and permitted to remain there during the embossing operation in said embossing zone while the injecting and cutting of the material is effected in synchronism with the intermittent advancement of the material web.
  • Apparatus for embossing repeated patterns in strip material constituted by at least two superimposed material webs comprising means for advancing the strip material intermittently through an embossing zone, means for injecting a pressure medium, into predetermined regions of said strip material during repeated stoppages thereof in said embossing zone, mold means at said zone for forming a desired pattern in relief on said strip material in said regions in which the pressure medium is injected, means for separating embossed blanks from said strip material after the latter has passed through said embossing zone, the latter means being positioned to separate the blanks and leave a portion of the embossed material attached to the strip material in said embossing zone awaiting embossing, whereby each embossed region in said embossed portion provides a passageway extending to a corresponding region of the strip material in said zone awaiting embossing, said means for injecting pres sure medium to said predetermined regions of the strip material in said embossing zone comprising a nozzle
  • said mold means comprises members having opposed spaced surfaces between which the strip material is passed, said surfaces having a groove pattern formed therein for restricting the magnitude and extent of deformation of the webs in said predetermined regions in which they are embossed.
  • Apparatus as claimed in claim 14 wherein said opposed surfaces have partly flat support surfaces and partly shaped strips projecting outwards from at least one support surface.
  • said means for interrupting flow of pressure medium comprises holder means including shoulders protuding from at least one support surface to clamp the webs sealingly against reaction surfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
US614926A 1966-02-11 1967-02-09 Method for embossing repeated patterns in strip material,preferably metal strip and means for carrying out the method Expired - Lifetime US3465568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1784/66A SE302105B (ko) 1966-02-11 1966-02-11

Publications (1)

Publication Number Publication Date
US3465568A true US3465568A (en) 1969-09-09

Family

ID=20258837

Family Applications (1)

Application Number Title Priority Date Filing Date
US614926A Expired - Lifetime US3465568A (en) 1966-02-11 1967-02-09 Method for embossing repeated patterns in strip material,preferably metal strip and means for carrying out the method

Country Status (6)

Country Link
US (1) US3465568A (ko)
CH (1) CH450331A (ko)
FR (1) FR1516288A (ko)
GB (1) GB1170298A (ko)
NO (1) NO126663B (ko)
SE (1) SE302105B (ko)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646657A (en) * 1969-08-08 1972-03-07 Bernard J Small Apparatus and process for forming tubular bodies
US3667266A (en) * 1970-05-13 1972-06-06 Olin Corp Method and apparatus for inflating fluid passageways in metal strip
US4224817A (en) * 1979-01-29 1980-09-30 Olin Corporation Apparatus and process for making tube in sheet heat exchangers
US4227391A (en) * 1979-01-29 1980-10-14 Olin Corporation Process for making tube in sheet heat exchangers
US20040091735A1 (en) * 2001-01-08 2004-05-13 Frieder Flamm Method for producing evaporator boards
ITUD20110006A1 (it) * 2011-01-19 2012-07-20 Ralc Italia Srl "metodo e impianto di lavorazione di pannelli radianti semi-grezzi"
US8683841B1 (en) * 2009-01-20 2014-04-01 Walsh Atkinson Co., Inc. Apparatus and method to cut HVAC round and spiral ductwork and all attaching structures
CN112139325A (zh) * 2020-09-24 2020-12-29 安徽玄同机电科技有限公司 一种金属薄板边部压花卷曲设备
US20220097121A1 (en) * 2018-12-27 2022-03-31 Cga Technologies S.R.L. Heat exchanger and corresponding production method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906006A (en) * 1954-02-24 1959-09-29 Olin Mathieson Method of making a sheet metal article
US3031735A (en) * 1956-11-19 1962-05-01 Sunbeam Corp Process of manufacturing electrically heated cooking vessel
US3045330A (en) * 1958-07-30 1962-07-24 Olin Mathieson Fabrication of hollow articles
US3052964A (en) * 1958-09-29 1962-09-11 Olin Mathieson Metal fabrication
US3108361A (en) * 1956-03-20 1963-10-29 Olin Mathieson Fabrication of hollow articles
US3110090A (en) * 1960-05-13 1963-11-12 Olin Mathieson Fabrication of hollow articles
US3133517A (en) * 1959-09-16 1964-05-19 Continental Can Co Method of forming container bodies and product thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906006A (en) * 1954-02-24 1959-09-29 Olin Mathieson Method of making a sheet metal article
US3108361A (en) * 1956-03-20 1963-10-29 Olin Mathieson Fabrication of hollow articles
US3031735A (en) * 1956-11-19 1962-05-01 Sunbeam Corp Process of manufacturing electrically heated cooking vessel
US3045330A (en) * 1958-07-30 1962-07-24 Olin Mathieson Fabrication of hollow articles
US3052964A (en) * 1958-09-29 1962-09-11 Olin Mathieson Metal fabrication
US3133517A (en) * 1959-09-16 1964-05-19 Continental Can Co Method of forming container bodies and product thereof
US3110090A (en) * 1960-05-13 1963-11-12 Olin Mathieson Fabrication of hollow articles

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646657A (en) * 1969-08-08 1972-03-07 Bernard J Small Apparatus and process for forming tubular bodies
US3667266A (en) * 1970-05-13 1972-06-06 Olin Corp Method and apparatus for inflating fluid passageways in metal strip
US4224817A (en) * 1979-01-29 1980-09-30 Olin Corporation Apparatus and process for making tube in sheet heat exchangers
US4227391A (en) * 1979-01-29 1980-10-14 Olin Corporation Process for making tube in sheet heat exchangers
US20040091735A1 (en) * 2001-01-08 2004-05-13 Frieder Flamm Method for producing evaporator boards
US8683841B1 (en) * 2009-01-20 2014-04-01 Walsh Atkinson Co., Inc. Apparatus and method to cut HVAC round and spiral ductwork and all attaching structures
ITUD20110006A1 (it) * 2011-01-19 2012-07-20 Ralc Italia Srl "metodo e impianto di lavorazione di pannelli radianti semi-grezzi"
US20220097121A1 (en) * 2018-12-27 2022-03-31 Cga Technologies S.R.L. Heat exchanger and corresponding production method
US11819903B2 (en) * 2018-12-27 2023-11-21 A. Raymond Et Cie Heat exchanger and corresponding production method
CN112139325A (zh) * 2020-09-24 2020-12-29 安徽玄同机电科技有限公司 一种金属薄板边部压花卷曲设备
CN112139325B (zh) * 2020-09-24 2023-07-07 安徽玄同机电科技有限公司 一种金属薄板边部压花卷曲设备

Also Published As

Publication number Publication date
NO126663B (ko) 1973-03-12
SE302105B (ko) 1968-07-08
FR1516288A (fr) 1968-03-08
DE1602404A1 (de) 1971-10-07
CH450331A (de) 1968-01-31
GB1170298A (en) 1969-11-12

Similar Documents

Publication Publication Date Title
US3465568A (en) Method for embossing repeated patterns in strip material,preferably metal strip and means for carrying out the method
CN2925684Y (zh) 全自动钢板送料机
GB1049600A (en) Method of and apparatus for the automatic continuous production of lattice girders
US3412448A (en) Method and apparatus for manufacturing sheet metal central heating radiators
CN106584044A (zh) 全自动变压器散热片生产线
US3880020A (en) Making blades for tire curing molds
US4407056A (en) Method and apparatus for manufacturing metal sections
US5330409A (en) Cassette changing apparatus for index-feeding machining systems
JPH01237059A (ja) 鋼の連続鋳造装置
US20060027066A1 (en) Web forming machine
US3909578A (en) Joining metal sheet or strip
US3227851A (en) Method of and apparatus for trimming flash welded strip
GB1131575A (en) Method and apparatus for forming sheet metal panels
JPS55112128A (en) Production of large-diameter square steel pipe
US1812023A (en) Punching and upsetting machine
US2036745A (en) Bending machine
GB940329A (en) Method and apparatus for producing hollow articles of thermo-plastic
GB1387157A (en) Making of truss members
GB932324A (en) Method and apparatus for manufacturing heating radiators
US4129460A (en) Method for coping I-beams
US3904345A (en) Cupping machine for producing containers in thermoplastic film and comprising a device for placing a tape-like strip in a mold
GB1323586A (en) Automatic production line for the continuous production of radiators
US3008223A (en) Methods of manufacture of compressor blades
US3936932A (en) Method and apparatus for making filter electrodes
CN101265948A (zh) 滚针轴承保持架连线生产方法