GB1267611A - Method and apparatus for pushing tube ends into and through a drawing die - Google Patents

Method and apparatus for pushing tube ends into and through a drawing die

Info

Publication number
GB1267611A
GB1267611A GB691870A GB691870A GB1267611A GB 1267611 A GB1267611 A GB 1267611A GB 691870 A GB691870 A GB 691870A GB 691870 A GB691870 A GB 691870A GB 1267611 A GB1267611 A GB 1267611A
Authority
GB
United Kingdom
Prior art keywords
tube
valve
pressure
die
cylinders
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
GB691870A
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.)
TH Kieserling and Albrecht GmbH and Co
Original Assignee
TH Kieserling and Albrecht GmbH and Co
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 TH Kieserling and Albrecht GmbH and Co filed Critical TH Kieserling and Albrecht GmbH and Co
Publication of GB1267611A publication Critical patent/GB1267611A/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
    • B21C5/00—Pointing; Push-pointing
    • B21C5/003—Pointing; Push-pointing of hollow material, e.g. tube
    • 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
    • B21C5/00—Pointing; Push-pointing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)

Abstract

1,267,611. Drawing. TH. KIESERLING & ALBRECHT. 12 Feb., 1970 [18 Aug., 1969], No. 6918/70. Heading B3P. A tube end is pointed by pushing it into engagement with a drawing die 3, supporting the outer wall of the tube 4 by an hydraulic medium in a zone 12 in front of the die 3 and thereafter pushing the tube 4 through the die 3 to complete the pointing. In operation, valves S1 and S2 are operated so that fluid is delivered by a pump 15 to cylinders 9, 10 causing the tube 4 to be clamped by jaws 11, 11a and to cylinders 7c, 8c causing them to be moved to the right relative to stationary pistons 7b, 8b. The tube end is thereby pushed into die 3 with the force being controlled by a pressure-adjusting valve V1, whereupon valve S3 is actuated to allow fluid to be supplied through conduits 18, 18a, 18b into the annular space 12. When a preselected pressure has been reached, valve S3 is reversed and valve S4 operated to connect conduits 18a, 18b with conduit 22 so that the pressure in the space 12 is determined by a reservoir 23. The pressure in the zone 12 is controlled by a device 24-27 connected to the circuit for moving the tube 4. When the desired pressure in the space 12 is reached, a valve S5 is actuated to disconnect valve V1 so that the full pressure may be applied to the cylinders 7c, 8c to push the tube 4 through the die 3. The pointed tube 4 may then be gripped by a carriage 1 and drawn using a mandrel 37.
GB691870A 1969-08-18 1970-02-12 Method and apparatus for pushing tube ends into and through a drawing die Expired GB1267611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691941972 DE1941972A1 (en) 1969-08-18 1969-08-18 Method and device for pushing pipe ends into a drawing die

Publications (1)

Publication Number Publication Date
GB1267611A true GB1267611A (en) 1972-03-22

Family

ID=5743118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB691870A Expired GB1267611A (en) 1969-08-18 1970-02-12 Method and apparatus for pushing tube ends into and through a drawing die

Country Status (7)

Country Link
AT (1) AT292609B (en)
BE (1) BE745872A (en)
CH (1) CH497210A (en)
DE (1) DE1941972A1 (en)
FR (1) FR2031298A5 (en)
GB (1) GB1267611A (en)
NL (1) NL7011438A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139074A1 (en) * 1981-10-01 1983-04-21 Rudolf 5982 Neuenrade Bültmann Apparatus for pushing tubes and bars into a cold drawing machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3150377C2 (en) * 1981-12-17 1983-12-15 Bültmann KG, 5982 Neuenrade Method and device for initiating the drawing process when drawing pipes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139074A1 (en) * 1981-10-01 1983-04-21 Rudolf 5982 Neuenrade Bültmann Apparatus for pushing tubes and bars into a cold drawing machine

Also Published As

Publication number Publication date
AT292609B (en) 1971-09-10
NL7011438A (en) 1971-02-22
CH497210A (en) 1970-10-15
DE1941972A1 (en) 1971-03-04
BE745872A (en) 1970-07-16
FR2031298A5 (en) 1970-11-13

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