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US3192754A - Apparatus for spiral pipe manufacturing - Google Patents

Apparatus for spiral pipe manufacturing Download PDF

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Publication number
US3192754A
US3192754A US122914A US12291461A US3192754A US 3192754 A US3192754 A US 3192754A US 122914 A US122914 A US 122914A US 12291461 A US12291461 A US 12291461A US 3192754 A US3192754 A US 3192754A
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United States
Prior art keywords
pipe
jaw
pipe forming
strip
forming tools
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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
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US122914A
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English (en)
Inventor
Kehne Lothar
Langen Theo
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Individual
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Individual
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Publication date
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams

Definitions

  • the present invention relates to an apparatus for manufacturing spiral pipe or tubing, more particularly, to such an apparatus having a strip feeding device and a stand which are an-gularly adjustable with respect to each other with saidstand having a plurality of pipe forming tools mounted thereon so that said tools can be asymmetrically adjusted with respect to the central axis of the pipe being formed.
  • Spiral pipe or tubing may be formed from hot or cold rolled steel strips so as to have a single continuous closed helical seam from end to end. This seam is usually closed by welding.
  • These pipes are of relatively low weight but have large internal diameters ranging up to 42 inches or more and having lengths up to about 40 feet.
  • Such spiral pipes are used in high and low pressure water lines, vacuum'lines, exhaust steam lines, low pressure air lines, sand and gravel conveying and similar services. These pipes are also extensively used by the petroleum industry for conveying natural gas and crude oil.
  • Such machines form the strip into pipe in several different ways.
  • the strip is not only bent by pipe forming tools acting at the outside of the pipe but the strip is simultaneously wound onto a stationary or rotating mandrel.
  • the strip is worked by pipe forming tools which operate on the outside of the strip without'using an interior mandrel.
  • the pipe forming tools In order to vary the diameter of the pipe which is to be formed not only must the pipe forming tools be radially adjustable but also either the strip feeding device or the table must also be adjusted.
  • the following components are constructed so as to be adjustable; the strip feeding device, the strip forming device, the series connected welding apparatus for the seams, and the pipe removal mechanism which removes the completed pipe from the machinery.
  • the construction of the various components so as to be adjustable considerably increases the complexity of the construction and operation of the machines.
  • the pipe forming tools are mounted so as to work on the exterior surface of the pipe over an angle of at least 120 degrees. No interior mandrel or internal forming tools are employed.
  • the pipe forming tools in the present invention are so mounted that they are asymmetrically adjustable with respect to the central axis of the pipe being for-med. This adjustment is made as a function of the diameter of the pipe.
  • the stand of the pipe forming device comprises a table upon which a jaw is mounted having width which is approximately equal to the maximum helical pitch of a pipe that can be formed by the present machine.
  • the jaw is semi-circular in shape and has an opening so as to accommodate the largest diameter pipe.
  • the strip to be formed is fed into the jaw upon a feeding means which can be fixed. It is also possible to feed the strip into the upper part of the jaw and to bend it into a reverse order of the described arrangement.
  • the pipe forming tools can be mounted on guide members which are sufiiciently long and strong so that the pressure heads of the tools can be adjusted to reach the central axis of the jaw or to extend even further into the interior of the jaw.
  • guide members which are sufiiciently long and strong so that the pressure heads of the tools can be adjusted to reach the central axis of the jaw or to extend even further into the interior of the jaw.
  • the pipe forming tool comprises a plurality of pairs of guide rods which are mounted in radially extending passages in a jaw forming the stand for shaping the pipe.
  • a pressure tool is mounted on each pair of guide rods.
  • the guide rods may also be mounted so as to be pivoted through a determined angle.
  • the pipe forming tools are in the form of a plurality of stacked plates which are piled upon each other. These plates are positioned at an angle with respect to the table. Suitable clamping means are provided for Wedging the stacked pipe forming tools in position once the tools have been radially adjusted. This angle may range from 0 to degrees but is preferably about 45 degrees.
  • pipe forming tools are used wherein the pressure head is narrow and has a length less than the width of the jaw of the stand.
  • a plurality of these pipe forming tools are arranged in a stand so as to be staggered in the direction of rotation of the strip and are in side-by-side relationship over the width of the stand of the jaw.
  • the pressure heads of the pipe forming tools may comprise either fixed or rotatable wear resistant bodies such as balls or cylinders.
  • the pressure heads may be so mounted that they may be readily interchanged depending on the diameter of the pipe to be formed.
  • FIGURE 1 shows a vertical sectional view of a stand of the machine embodying this invention wherein the pipe forming members are mounted in guides pivotally mounted on the jaw;
  • FIGURE 2 is a view similar to that of FIGURE 1 but discloses a somewhat different arrangement of the pipe forming tools
  • FIGURE 3 is an end elevational view of a modification of a stand of this invention wherein the pipe forming tool is adjustable along a groove which is concentric to the center of the jaw;
  • FIGURE 4 is a front elevational view of a further embodiment of this invention wherein the pipe forming tools are in the shape of plates which are stacked upon each other; and
  • FIGURE 5 is a side elevational view of the modification illustrated in FIGURE 4.
  • FIGURE 1 a pipe forming stand comprising a jaw 1 mounted upon a substantially horizontal table 2. While not shown in FIGURE 1 there is a second similar jaw positioned behind the illustrated jaw. 1. This similar jaw is spaced from the jaw 1 a distance corresponding to the width of the jaw of the entire stand.
  • the jaw comprises two halves, each half jaw having complementary radially extending grooves therein.
  • the walls of said grooves flare outwardly in opposite directions from a constricted mid-portion and cooperate with the walls of the adjacent groove to form radially extending passages 3.
  • Said passages flare outwardly in opposite directions from said constricted mid-portion.
  • Each of said passages is square in transverse cross-section.
  • Bores 4 are positioned in each of the passages at said constricted mid-portion.
  • Exterior guide members 5 are pivotally mounted in the passages 3 by means of pins extending through the bores 4.
  • a shaft 6 is positioned in each of the guide members 5 and is provided with an external thread which may be either a helical thread or a rack gear.
  • a similar construction as described above is also found in the second half of the jaws 1 which is not illustrated in the drawings.
  • a bridge member 7 which is shown in section, FIGURE 1, interconnects the two shanks 6.
  • a plurality of spiral pipe forming pressure members 8 are rotatably mounted in bearings positioned on the bridge 7. The length of the bridge 7 is approximately equal to the width of the jaw of stand.
  • the bridge 7 is mounted on a sleeve-shaped sliding member 9 which is positioned in each of the exterior guide members 5 and is also fixed to the inner end of the shaft 6.
  • a structure 10 is mounted on the end of each of the shanks 6 for radially adjusting the pipe forming tool.
  • This adjustment structure may comprise a worm 11 which engages a worm gear 12 mounted on the shank 6.
  • a crank handle may be mounted on the worm 11 so as to simultaneously adjust a pair of shanks.
  • the pipe forming members 7 can be radially moved within the stand.
  • these pipe forming members 7 can be pivoted within an angle as defined by the double cone-shaped passages 3.
  • wedge clamps may be used to secure the positions of the members.
  • Other suitable clamping structure may also be used.
  • the pivoting range of the pipe forming tools is illustrated in FIGURE 1 by line S which extends from the pivot point'of the pipe forming tool.
  • line S which extends from the pivot point'of the pipe forming tool.
  • the axes of the guide forming members would be in corresponding positions S1 and S2.
  • the axes of the shanks 6 would intersect at the points A1 and A2 respectively.
  • the angles between the pipe forming tools is about 25. It is noted that the intersections of the axes of the pipe forming tools as indicated as A1 and A2 do not necessarily coincide with the centers of the pipe. circles R1 and R2. In addition, because of the asymmetrical arrangement of the pipe forming tools these tools do not coincide with the central axis M of the jaw.
  • FIGURE 2 is similar to FIGURE 1 except that the angles between the axes of the tool forming members are unequal and vary from about 22 to 30 degrees. Accordingly, the axes of the tool forming members do not intersect at a single point. With this arrangement it is possible to have the pipe forming tools engage the outer surface of the pipe at approximately equal arcuate distances when forming a pipe having a diameter indicated as R2.
  • the asymmetrical arrangement of the passages 3 in the stands illustrated both in FIGURES 1 and 2 can be determined both empirically and mathematically for the desired range of diameters of the pipes which are to be manufactured.
  • FIGURE 1 it can be seen that the angular positions of the lowest two tool forming members are substantially the same in spite of the considerable differences in the diameters of the pipes R1 and R2. Accordingly, it would be possible to modify this construction by providing that the two lowest radial passages 3 be cylindrical and that the two forming members mounted therein be only radially adjustable. The remaining tool forming members which are in greater distance from the strip entrance would be pivotally mounted.
  • the lower most radial passage 3 may be replaced by a wear-resistant strip entrance member 13.
  • This member would be readily removable so as to be easily replaced when excessively worn.
  • the pipe forming tools may be so positioned that the outer surface of the pipe may be contacted in the most effective manner.
  • the portion of the periphery of the pipe which is contacted is greater than degrees and in some cases even greater than degrees.
  • FIGURE 3 there is illustrated a modification of this invention wherein the tool forming member is mounted on a frame which is positioned in a groove concentric to the central axis of the jaw.
  • the stand comprises a semi-circular jaw 14 which has a substantially sem-circular groove 15 therein.
  • the groove 15 is concentric to the center of the jaw 14.
  • FIGURE 3 shows only one of the plurality of pipe forming tools which would be mounted on the jaw 14.- v
  • the pipe forming tool in FIGURE 3 comprises a pressure roller 16 which is rotatably mounted in bearings by means of pinions. These bearings can be moved radially with respect to the central axis M of the jaw in a frame 17. The bearings are mounted on the end of a spindle 18 which is supported in the frame 17. The frame 17 is mounted in the groove 15 by means of a bolt which extends the length of the stand.
  • bearing plates can be pivotally mounted by said supporting bolt.
  • the arrows in FIGURE 3 indicate the various adjustments which are possible with the pipe forming tool of this modification.
  • FIGURE 3 the pipe forming tool is shown in a position wherein the central axis of a spindle 18 intersects the longitudinal central axis M of the jaw.
  • the axis of the spindle 18 can be pivoted downwardly so as to be directed to the axis of the pipe which is to be manufactured.
  • This pipe is indicated by dashed circle R.
  • the circumference of the pipe R as compared with the opening of the jaw also demonstrates that the pipe forming tools can be asymmetrically adjusted in a manner similar to that described in the modification of FIGURES 1 and 2.
  • the strip again enters the jaw at the lower portion thereof on a wear-resistant exchangeable feeding member 13 which is mounted on the lower portion of the jaw 14.
  • the groove 15 can be replaced by a groove having a cruciform cross-section. Accordingly, a cross head can be used which is mounted within the groove instead of the exterior frame 17. In this modification the spindle is moved in the cross head until it contacts a yoke-shaped supporting member in which the pressure roller 16 is mounted.
  • a plurality of counter jaws can also be employed. These counter jaws can be so constructed that the strip which is to enter the jaw passes through a slot arranged in the stand at the feeding height. As an alternative, one of the counter jaws may be omitted and the strip can enter the jaws through this space. This arrangement can also be used for adjusting the distances of the edges of the strip which is to be formed into the pipe.
  • FIGURES 4 and 5 there is illustrated a still further modification of this invention which comprises a pair of spaced similar semi-circular shaped jaws 19 which are mounted upon a substantially horizontal base plate 20.
  • a pair of clamp plates 21 are welded in the internal walls of the plates. These plates are fixed at an angle of about 45 such as illustrated in FIGURE 4.
  • the clamp plate 21 can also be adjustably mounted on the jaws 19 such as by the mounting of a crosshead in the slot 15 of FIGURE 3 or the frame 17 in the same slot 15.
  • a pile of eleven plate-shaped forming tools 22 are positioned between the clamp plates 21 which are at an angle between 0 and 90 degrees.
  • the interior ends of the pipe forming members which extend into the central portion of the jaw may either have fixed pressure heads such as illustrated, rotatably mounted rollers or spherical pressure members.
  • the plates 22 are retained in their adjusting position by pressure means 21 which clamp them against the plates 21.
  • an interchangeable entrance member 13 can be positioned in the lower portion of the jaw as illustrated in FIGURE 3.
  • a rotary roller 23 is positioned above the strip feeding device and is supported upon a shaft (not shown) fixed to the right hand half of the stand 19 as shown in FIG- URE 4.
  • the roller 23 may have the same width as the strip. With this roller the strip can be pre-bent before entering the jaw to be worked upon by the pipe forming members.
  • the machine of this invention can not only be used for working hot and cool-rolled steel strips but also for bending strips of other materials such as non-ferrous metals or plastics, such as polyamides, polyvinylchlorides, polystyrenes, polyethylenes, etc.
  • the edges of the formed strips may be attached by the use of suitable adhesives. This is preferably accomplished when the edges of the strips are overlapped.
  • the present invention provides a simplified arrangement for forming spiral pipes by helically bending a strip into position. Further, the asymmetric adjustments possible with the pipe forming tools enables a wide range of diameters of pipe to be readily formed.
  • a pipe shaping arrangement comprising two semi-circular jaws, each having a plurality of radially extending flaring passages therethrough, a plurality of pipe forming tools arranged over an arc of about and pivotally and adjustably mounted in said flaring passages of said jaws with each tool being individually pivotable about a transverse axis thereof, said pipe forming tools having pressure heads on the inner ends thereof to engage the outer surface of a pipe being formed and being also slidable substantially radially with respect to the central longitudinal axis of the pipe being formed, the central longitudinal axis of the pipe being formed being asymmetrically positioned with respect to the central longitudinal axis of said semi-circular jaws.
  • a pipe shaping arrangement comprising two semi-circular jaws each having .a plurality of double flared radially extending passages therein, a plurality of pipe forming tools arranged over an arc of about 120 and each mounted for individual pivotable movement about a transverse aids in said radially extended passages, said pipe forming tools comprising tubular members having guide rods slidably.
  • a pipe shaping arrangement comprising a plurality of semi-circular jaws, there being a plurality of double flared radially extending passages in said jaws concentric with respect to the center of said jaws, said passages flaring outwardly in opposite directions from the central mid-portion, a plurality of frames movably and pivotally mounted in said passages at said central mid-portion, a spindle adjustably mounted in each of said frames for radial movement thereon, and a pressure roller mounted on the inner end of each of said spindles to define a pipe forming tool.
  • a pipe shaping arrangement comprising a pair of spaced similarly shaped semi-circular jaws, a plurality of parallel plate-like pipe forming tools stacked upon each other and mounted on said jaws so that individual pipe forming tools are slidable with respect to each other and are thus movable radially with respect to the longitudinal central axis of the pipe being formed, the inner ends of said plate-like pipe forming tools engaging the outer surface of a pipe being formed and being positioned over an angle of about 120, and clamping plates positioned on both ends of the stack of plate-like pipe forming tools for securely clamping said pipe forming tools into selected positions at a predetermined angle of incidence with respect to the central longitudinal axis of the pipe being formed.
  • L1 an apparatus as claimed in claim 5, and further comprising counter jaws similarly shaped to said jaws and being positioned with the open portions of the jaws and counter jaws cooperating so as to form a closed structure, and means on said counter jaws for adjusting the distances between the edges of the strip to be formed into a pipe.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US122914A 1960-07-14 1961-07-10 Apparatus for spiral pipe manufacturing Expired - Lifetime US3192754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK41188A DE1234660B (de) 1960-07-14 1960-07-14 Maschine zum Herstellen von Rohren verschiedenen Durchmessers aus wendelfoermig gewickeltem Band

Publications (1)

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US3192754A true US3192754A (en) 1965-07-06

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US122914A Expired - Lifetime US3192754A (en) 1960-07-14 1961-07-10 Apparatus for spiral pipe manufacturing

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US (1) US3192754A (de)
BE (1) BE605831A (de)
DE (1) DE1234660B (de)
GB (1) GB922000A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3595046A (en) * 1966-12-21 1971-07-27 Malkki Eino Method and device for manufacturing helically seamed tube
WO1992010317A1 (en) * 1990-11-30 1992-06-25 Bubb, Antony, John, Allen Improvements in and relating to the production of helically wound tubing of non-circular cross section
US20040258924A1 (en) * 2003-06-18 2004-12-23 Armin Berger Composite systems for in-mold decoration

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113020573B (zh) * 2021-03-03 2023-07-07 东阳市飓丰铝业股份有限公司 一种铝管生产设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2595747A (en) * 1947-05-16 1952-05-06 Chicago Metal Hose Corp Tubemaking machine
US2991740A (en) * 1957-01-15 1961-07-11 Eckhardt Wilhelm Method and apparatus for shaping flat strips of material into tubular bodies
US3030488A (en) * 1958-04-05 1962-04-17 Willy H Schlieker K G Method and apparatus for producing tubes with a helical welding seam
US3070054A (en) * 1956-08-30 1962-12-25 Spiralit Soc Apparatus for manufacturing pipes and tubes
US3093103A (en) * 1958-02-10 1963-06-11 Florence B Berkeley Method of producing spiral pipe

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE571608A (de) *
FR348680A (fr) * 1903-12-03 1905-04-21 Nicol Sinclair Arthur Machine à courber et à redresser les barres et poutrelles métalliques
FR420871A (fr) * 1910-09-26 1911-02-09 Arthur Rousseau Machine à cintrer, ouvrir, fermer et dresser les cornières et tous autres profils
US2158796A (en) * 1935-01-21 1939-05-16 Nat Standard Co Manufacture of tubing
DE688317C (de) * 1937-05-08 1940-02-17 Ludwig Klein Vorrichtung zum Rundbiegen von aus einer duennwandigen Stuetzschale mit Lagermetallbekleidung bestehenden Gleitlagerschalen
FR830890A (fr) * 1937-12-16 1938-08-11 Machine à cintrer les profilés
US2635572A (en) * 1947-05-13 1953-04-21 Chicago Metal Hose Corp Tubemaking apparatus
US2614606A (en) * 1949-12-05 1952-10-21 Leggett & Platt Coiling machine
DE1063109B (de) * 1955-08-25 1959-08-13 Karl Hack Federwindemaschine mit nur einem Windewerkzeug
FR1187817A (fr) * 1956-08-30 1959-09-16 Machine à fabriquer des tubes
DE1075530B (de) * 1958-10-08 1960-02-18 Hamburg Alexander Kückens Vorrichtung zum Herstellen von Rohren mit wendeiförmiger Schweißnaht
FR74983E (fr) * 1959-02-20 1961-03-03 Machine à fabriquer des tubes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2595747A (en) * 1947-05-16 1952-05-06 Chicago Metal Hose Corp Tubemaking machine
US3070054A (en) * 1956-08-30 1962-12-25 Spiralit Soc Apparatus for manufacturing pipes and tubes
US2991740A (en) * 1957-01-15 1961-07-11 Eckhardt Wilhelm Method and apparatus for shaping flat strips of material into tubular bodies
US3093103A (en) * 1958-02-10 1963-06-11 Florence B Berkeley Method of producing spiral pipe
US3030488A (en) * 1958-04-05 1962-04-17 Willy H Schlieker K G Method and apparatus for producing tubes with a helical welding seam

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3595046A (en) * 1966-12-21 1971-07-27 Malkki Eino Method and device for manufacturing helically seamed tube
WO1992010317A1 (en) * 1990-11-30 1992-06-25 Bubb, Antony, John, Allen Improvements in and relating to the production of helically wound tubing of non-circular cross section
US20040258924A1 (en) * 2003-06-18 2004-12-23 Armin Berger Composite systems for in-mold decoration

Also Published As

Publication number Publication date
GB922000A (en) 1963-03-27
DE1234660B (de) 1967-02-23
BE605831A (fr) 1961-11-03

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