GB1389184A - Method and apparatus for the automatic manufacture of duct elements - Google Patents

Method and apparatus for the automatic manufacture of duct elements

Info

Publication number
GB1389184A
GB1389184A GB252773A GB252773A GB1389184A GB 1389184 A GB1389184 A GB 1389184A GB 252773 A GB252773 A GB 252773A GB 252773 A GB252773 A GB 252773A GB 1389184 A GB1389184 A GB 1389184A
Authority
GB
United Kingdom
Prior art keywords
strip
duct
section
rollers
overlap
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
Application number
GB252773A
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.)
MEINIG KG CARL
Original Assignee
MEINIG KG CARL
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
Priority claimed from DE19722203560 external-priority patent/DE2203560C3/en
Application filed by MEINIG KG CARL filed Critical MEINIG KG CARL
Publication of GB1389184A publication Critical patent/GB1389184A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
    • B21C37/10—Making tubes with riveted seams or with non-welded and non-soldered seams
    • B21C37/104—Making tubes with riveted seams or with non-welded and non-soldered seams the tubes having a special shape, e.g. polygonal tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/155—Making tubes with non circular section
    • 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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/042—With a rotational movement of the bending blade
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers

Abstract

1389184 Making corrugated ducts KARL MEINIG KG 17 Jan 1973 [26 Jan 1972] 2527/73 Headings B3A and B3E [Also in Division F2] A method of manufacturing sheet-metal ducts, Fig. 8, of rectangular cross-section comprises feeding strip 3b from a coil 3, Fig. 1, to a shaping unit B to produce a rolled flange section 3c, Fig. 3, on both edges of the strip; providing incisions in the flange at distances corresponding to the final dimensions of the duct, bending the strip in a folding unit C to form a rectangle (3e)- (3h), Fig. 7e (not shown), and cutting the formed duct from the strip. The uncoiled strip is straightened using rollers 6 and provided with triangular flange sections 3c by rollers 4. Additional rollers (5), Fig. 2 (not shown), impart a shallow zig-zag profile to the strip to produce reinforcing tines 21, 22 in the finished duct. The sections are spot welded at 7 and the strip fed by rollers 4, via driven guide rollers 8, to unit C where an overlap 3d, Fig. 3, is produced. The strip is clamped by upper jaw 10 and circular saws 12 make incisions in the sections 3c. The section 3c attached to overlap 3d is cut off using sheet-metal shears (not shown). The overlap is then folded and the sheet fed to a limit stop 14 adjusted according to the required dimensions of the finished duct. A switch 14a stops the feed and folding of the strip begins. Upper jaw 10 is again lowered, saws 12 raised into their cutting position and support arms 13 and bending jaw 11 swivelled about edge 9a. The upper jaw is disengaged and the feed restarted until a further folding step is required to form a duct of rectangular section, Fig. 7a-7e (not shown). Upon completion of four bending operations the cutting-off operation is automatically triggered by a control device. The duct is cut off the strip using a cutting roller 15a which is lowered into a gap between edges 9a, 11a and rotating saw blades 12a are raised to cut through the strip section. The overlap 3d may be secured to adjacent wall section (3h) by a rolled seam or a projection or spot welding machine. Corner angle pieces (16), (18), Figs. 9, 10 (not shown), 19, 20 are inserted at the corners of the duct. This may include spot welding of angle pieces (16), (18) to the peripheries of the flange section 3c or introduction of pieces 19, 20 into the cavities of the flange section. Outer ends (19c), (20c), Figs. 11, 12 (not shown), prevent lugs (19a), (20a) sliding into the cavities. Connecting screws (not shown) may be used to rigidly fix the angle pieces.
GB252773A 1972-01-26 1973-01-17 Method and apparatus for the automatic manufacture of duct elements Expired GB1389184A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722203560 DE2203560C3 (en) 1972-01-26 Process and system for the automatic production of duct elements

Publications (1)

Publication Number Publication Date
GB1389184A true GB1389184A (en) 1975-04-03

Family

ID=5834063

Family Applications (1)

Application Number Title Priority Date Filing Date
GB252773A Expired GB1389184A (en) 1972-01-26 1973-01-17 Method and apparatus for the automatic manufacture of duct elements

Country Status (10)

Country Link
AT (1) AT327650B (en)
BE (1) BE794444A (en)
CH (1) CH551814A (en)
DK (1) DK146736C (en)
FR (1) FR2169057B1 (en)
GB (1) GB1389184A (en)
IT (1) IT993546B (en)
LU (1) LU66884A1 (en)
NL (1) NL166869C (en)
SE (1) SE400487B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128913A (en) * 1982-10-05 1984-05-10 Shimizu Construction Co Ltd Apparatus for automatically bending reinforcement bars
GB2137993A (en) * 1983-04-12 1984-10-17 Lilly Co Eli Improvements in or relating to naphthylglycyl cephalosporin derivatives
GB2156473A (en) * 1984-03-16 1985-10-09 Amco Plastics Ltd Collapsible ducting
GB2227806A (en) * 1989-02-02 1990-08-08 Steelpress Embossed ducting
WO1991001187A1 (en) * 1989-07-20 1991-02-07 Firmac Limited Method and apparatus for forming a duct section
EP0496425A1 (en) * 1991-01-25 1992-07-29 Iowa Precision Industries Inc. Method and apparatus for forming box-shaped sheet metal ducts
CN102909246A (en) * 2012-11-16 2013-02-06 孟春润 Plate-shared flange machine with monolithic beams
CN113550456A (en) * 2021-08-02 2021-10-26 中建安装集团有限公司 Installation method of fire-proof plate at curved surface position of air pipe
WO2023043412A1 (en) * 2021-09-20 2023-03-23 Sente Maki̇na İnşaat Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ A machine with a slide that can process two different sheets at the same time and give variable forms
CN116748808A (en) * 2023-06-16 2023-09-15 广州市全风机电设备有限公司 Fireproof air duct processing method
CN117506404A (en) * 2024-01-05 2024-02-06 风通动力环境科技(成都)有限公司 Screw screwing device for soft connection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686533B1 (en) * 1992-01-27 1996-05-15 Favien Ets SAFETY APRON BENDING PRESS.

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128913A (en) * 1982-10-05 1984-05-10 Shimizu Construction Co Ltd Apparatus for automatically bending reinforcement bars
GB2137993A (en) * 1983-04-12 1984-10-17 Lilly Co Eli Improvements in or relating to naphthylglycyl cephalosporin derivatives
GB2156473A (en) * 1984-03-16 1985-10-09 Amco Plastics Ltd Collapsible ducting
GB2227806A (en) * 1989-02-02 1990-08-08 Steelpress Embossed ducting
WO1991001187A1 (en) * 1989-07-20 1991-02-07 Firmac Limited Method and apparatus for forming a duct section
EP0496425A1 (en) * 1991-01-25 1992-07-29 Iowa Precision Industries Inc. Method and apparatus for forming box-shaped sheet metal ducts
CN102909246A (en) * 2012-11-16 2013-02-06 孟春润 Plate-shared flange machine with monolithic beams
CN113550456A (en) * 2021-08-02 2021-10-26 中建安装集团有限公司 Installation method of fire-proof plate at curved surface position of air pipe
WO2023043412A1 (en) * 2021-09-20 2023-03-23 Sente Maki̇na İnşaat Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ A machine with a slide that can process two different sheets at the same time and give variable forms
CN116748808A (en) * 2023-06-16 2023-09-15 广州市全风机电设备有限公司 Fireproof air duct processing method
CN116748808B (en) * 2023-06-16 2024-02-23 广州市全风机电设备有限公司 Fireproof air duct processing method
CN117506404A (en) * 2024-01-05 2024-02-06 风通动力环境科技(成都)有限公司 Screw screwing device for soft connection
CN117506404B (en) * 2024-01-05 2024-03-12 风通动力环境科技(成都)有限公司 Screw screwing device for soft connection

Also Published As

Publication number Publication date
DE2203560B2 (en) 1975-04-10
NL166869B (en) 1981-05-15
BE794444A (en) 1973-05-16
FR2169057A1 (en) 1973-09-07
FR2169057B1 (en) 1978-02-10
NL166869C (en) 1981-10-15
IT993546B (en) 1975-09-30
ATA14373A (en) 1975-04-15
CH551814A (en) 1974-07-31
AT327650B (en) 1976-02-10
DE2203560A1 (en) 1973-08-09
SE400487B (en) 1978-04-03
LU66884A1 (en) 1973-03-23
DK146736B (en) 1983-12-19
NL7301190A (en) 1973-07-30
DK146736C (en) 1984-05-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee