US1141426A - Mandrel stripping and cooling mechanism. - Google Patents

Description

F. E. SIMPKINS.

MANDREL STRIPFING AND COOLING MECHANISM.

APPLICATION FILED AUG.I9, 1912. RENEWED FEB. 1.1915.

Patented June 1, 1915.

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INVENTOR s E s s E N w w F. E. SIMPKINS.

MANDBEL STRIPPING AND COOLING MECHANISM. APPLICATION FILED AUG.I9. 1912. RENEWED FEB. 1.191s.

Patented June 1, 1915.

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WITNESSES FRANK E. SIMP-KINS, OF YOUNGSTOWN, OHIO.

MANDREL STRIPPING AND COOLING MECHANISM.

Specification of Letters Patent.

Patented June 1, 1915.

Original application filed May 3, 1911, Serial No. 624,868. Divided and this application filed August 19, 1912, Serial No. 715,905. Renewed February 1, 1915. Serial'No. 5,5e8.

To all whom it may concern Be it known that I, FRANK E. SIMPKINS, a resident of Youngstown, in the county of Mahoning and State of Ohio, have invented certain new and useful Improvements in Mandrel Stripping and Cooling Mechanism, of which'the following is a specification.

This invention (a division of my application filed May 3, 1911, Serial No. 621,865) relates to improved and efficient mechanism for stripping tubes from the ,mandrels on which they are rolled; and for cooling the stripped mandrels; and for presenting and holding the mandrels in position to receive the rolled tubes.

In the accompanying drawings, Figure 1 is a top plan of the improved mechanism shown partly in section, and Fig. 2 is a side elevation of the same, a portion of the mechanism being shown in section through the axial line of therotatable carrier. Fig. 3 is a front end view. Figs. 4 and 5 are cross sections on lines H and 5-5, respectively, of Fig. 1. Fig. 6 is a rear end view.

Referring to the drawings, 2 designates an open-top water chamber or tank, and

mounted therein is a rotatable carrier con-- sisting of shaft 3 to which is secured a series of circular heads 1. The arrangement is preferably such that the under half of the carrier is within chamber 2. Mounted in the carrier heads 4 are the tubular holders 5, arranged in a concentric series around and paralleling carrier shaft 3. The holders are mounted to rotate individually in heads 4, being preferably provided with ball bearings 6, Fig. 1.

The carrier is adapted to place holders 5 successively in line with a tube rolling pass, formed for example by rolls A, with the active mandrel B extending through one of holders 5, as in Fig. 1, with its rear end held by a swinging gate 7 of usual construction, and with its front end holding the piercing head C in position in the tube forming pass. As the rolled tube emerges from the pass and moves outwardly over mandrel B it enters holder 5 at the belled end 5' of the latter pushing ahead of it the mandrel-centering rings 8. After the full length of the rolled tube has been projected from the tube rolling pass piercing head C is removed or drops ofl, gate 7 is opened as in dotted lines in Fig. 1, and the tube and mandrel are advanced longitudinally through the holder, as with a pair of tongs. a sufiicient distance to place the outer ends thereof in position to be moved by the rotating carrier between stripping rolls 9 which form an open-end pass, Figs. 1 and 5. In line with rolls 9 are the grooved rolls 10 which form a finishing pass through which the stripped tube is extended, rolls 10 being disposed at right angles to rolls 9, and the two sets of rolls connected for simultaneous driving by shafts 11, power being applied through shaft 12.

The carrier is rotated, as by worm crankshaft 14 meshing with gear 15 on shaft 3, F 1g. 3, for moving the headed end B of the mandrel forwardly over guide 13 and placing it in position between the latter and the supplemental guide 16, thereby holding the mandrel against longitudinal movement. The some movement places the outer ends of the tube and mandrel between rolls 9. whereupon the latter are operated to strip the tube from the held mandrel, the tube being projected outwardly between finishing rolls 10, as will be understood. After the tube has been stripped from the mandrel the carrier is rotated, moving the mandrel downwardly and submerging it in the water-containing chamber 2. In order that the mandrel may be uniformly and thoroughly cooled aseparate or individual rotary movement is imparted to tubular holder 5 by means of a gear wheel 17 secured thereto which meshes with a curved rack 18 secured to the bottom of the tank, Figs. 1 and 4, so that by the time the mandrel is again moved into line with the tube-rolling pass for another rolling operation it is thoroughly cooled. A latch 19 operates to hold the carrier with a holder 5 properly alined with the roll pass.

The improved mechanism cooperates in a most efiicient manner with a tube mill,

taking care of the mandrel holding, tube stripping and mandrel cooling operations.

I claim 1. The combination of pass-forming rolls, a mandrel carrier movable relatively to the rolls, a mandrel holder on the carrier adapted to be moved by the latter into and out of position for receiving a mandrel from the rolls, and a cooling chamber into which the carrier is adapted to move the mandrel-supporting holder.

2. The combination of pass-forming rolls,

a mandrel carrier at the delivery side of the rolls with the carrier rotatable about a horizontal axis, a plurality of mandrel holders on the carrier adapted successively to receive mandrels from the rolls, and a cooling chamber in which the under portion of the carrier travels and through which it is adapted to move the mandrel holders.

3. The combination of pass-forming rolls, a mandrel carrier at the delivery side of the rolls and adapted to receive a mandrel from the latter, the carrier mounted to rotate about a horizontal axis, and a cooling chamber in which the under portion of the carrier travels and through which it is adapted to move the mandrel received from the rolls.

4. The combination of pass-forming rolls, a cooling chamber, and a mandrel carrier adapted to receive a mandrel from the roll pass and move it into the cooling chamber.

5. The combination of pass-forming rolls, a cooling chamber, a mandrel carrier rotatable through the cooling chamber with a portion of the carrier at the exterior of the chamber and adapted to receive a mandrel from the roll pass.

6. The combination of a cooling chamber, acarrier movable therein for tube rolling mandrels, the carrier adapted to receive a mandrel with a rolled tube thereon, and means for stripping the tube from the mandrel'before the latter is submerged in the cooling chamber.

7 The combination of a cooling chamber, a rotatable carrier partially within the chamber and with the portion at the exterior thereof adapted to receive a mandrel with a rolled tube thereon, and stripping means to which the carrier presents the mandrel and tube for stripping the tube.

' from the mandrel before the latter is submerged in the cooling chamber.

8. The combination of a cooling chamber, mandrel holding means, tube stripping means, and a carrier movable in the chamber and adapted to receive the mandrel with a rolled tube thereon and present them to the mandrel holding and tube stripping mechanisms for removing the tube from the mandrel before submerging the latter in the cooling chamber.

9. The combination of a cooling chamber, mandrel holding means at one end thereof, tube stripping means at the opposite end of the chamber, and a carrier rotatable between said holding and stripping means and with the carrier partially within the chamber, the carrier adapted to receive a mandrel with a rolled tube thereon and present them to said holding and stripping means for removing the tube from the mandrel before advancing the latter into the cooling chamber.

10. The combination of a cooling chamber, a mandrel carrier movable in the chamber for submerging a mandrel, a mandrel holder movably mounted on the carrier, and means for moving the holder as the carrier advances the mandrel through the chamber.

11. The combination of a cooling chamber, a rotatable mandrel carrier partially within the chamber, a mandrel holder rotatably mounted on the carrier, and means for rotating the holder as the mandrel is advanced through the chamber by the rotation of the carrier.

12. The combination of a cooling chamber, a rotatable carrier partially within the chamber, a series of tubular mandrel holders rotatably mounted in the carrier, and means for rotating the holders as they are advanced through the chamber by the rotation of the carrier.

13. The combination of a cooling cham-- ber, a mandrel and tube carrier movable therein, pass-forming rolls between which the carrier is adapted to move the mandrel and tube, mandrel holding means, and means for operating the rolls to strip the tube from the mandrel with the latter remaining on the carrier and adapted to be moved by the latter into the cooling chamber.

14. The combination of a cooling chamher, a mandrel and tube carrier movable therein, pass-forming rolls between which the carrier is adapted to move the mandrel and tube, a second set of pass-forming rolls in line with and having its rolls disposed at right angles to the rolls of the first mentioned pass, mandrel holding means, and means for operating the rolls to strip the tube from the mandrel with the latter maining on the carrier and adapted to Lnoved by the latter into the cooling cham- 15. The combination of "a carrier adapted to receive a mandrel and rolled tube, stripping rolls between which the carrier is adapted to move the mandrel and tube, means for holding the mandrel on the carrier, and means for operating the rolls 0 strip the tube from the held mandrel. j

16. The combination of stripping rol s, a mandrel holder, means for operating t e rolls to strip the tube from a held mandrel, and means for presenting the mandrel and tube to said-holding and stripping means.

In testimony whereof I aflix my signa ture in presence of two witnesses.

FRANK E. SIMPKINS.

Witnesses:

MARY RYAN, D. R. Bass.

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