US3317158A

US3317158A - Outboard bearing for tension reels

Info

Publication number: US3317158A
Application number: US472595A
Authority: US
Inventors: O'brien Jeremiah Wagner
Original assignee: United Engineering and Foundry Co
Current assignee: United Engineering and Foundry Co
Priority date: 1964-08-11
Filing date: 1965-07-16
Publication date: 1967-05-02
Anticipated expiration: 1984-05-02
Also published as: GB1071594A; FR1446532A; DE1265525B

Description

y 2 7 J. w. OBRIEN 3,317,158

OUTBOARD BEARING FOR TENSION REELS Filed July 16, 1965 FIG. I

INVENTOR. JEREMIAH W. O'BRIEN HIS TORNEY 2 Sheets-Sheet 1 May 2, 1967 J. w. OBRIEN OUTBOARD BEARING FOR TENSION REELS 2 Sheets-Sheet 2 Filed July 16, 1965 FIG. 2

INVENTOR. JEREMIAH W. O'BRIEN HIS ATTORNEY FIG. 3

United States Patent 3,317,158 OUTBOARD BEARING FOR TENSION REELS Jeremiah Wagner OBrien, Pittsburgh, Pa., assignor to United Engineering and Foundry Company, Pittsburgh, Pa., a corporation of Pennsylvania Filed July 16, 1965, Ser. No. 472,595 Claims priority, application Great Britain, Aug. 11, 1964, 32,588/ 64 4 Claims. (Cl. 242-781) This invention relates to a reel for coiling and/or uncoiling strip material and, more particularly, to such a reel having an overhung mounted mandrel including means for resisting the deflection of the overhanging end thereof.

Reels of this type are frequently employed to coil metallic strip material as it issues under tension from a rolling mill and includes, as already indicated, an overhung rotatable coiling mandrel upon which the strip material is wound to form a coil. The mandrel is received in and supported at one end by a stationary housing which, on many occasions, contains drive gearing for rotating the mandrel.

In order to reduce excessive wear and breakage of the mandrel, the outboard end of the mandrel, i.e., the end opposite the supported end, when the length of the mandrel is substantial, is usually engaged by an outboard supporting device that is quickly removable from the end to permit the axial removal of a coil formed on the mandrel. In this manner a large extent of the deflection or bending of the mandrel resulting from the forces imposed thereon by reason of weight or the coiled strip and the tension applied to the strip is substantially minimized. Outboard support devices become important as the forces involved increase, such as, when wide strip is coiled into extremely large diameter coils.

Prior art devices for supporting the outboard end of the mandrel have not been wholly acceptable for a number of reasons. One reason has reference to the limitation that because of excessive wear and distortion of parts the consistent and quick registry of the outboard bearing support with the end of the mandrel was not possible. Still further, known support devices were not sufficiently rigid to withstand the deflection forces involved, nor were they quickly retractable to permit axial removal of a coil from the mandrel. As to prior art devices that utilized a saddle-type support for the outboard end of the mandrel, they only afforded support in one direction. Finally, great difficulty was experienced in providing a device that would adapt to reels designed to shift to allow for strip guiding.

It is, therefore, an object of the present invention to provide a device for supporting the outboard end of a reel or the like that will overcome each and every one of the above-mentioned shortcomings of known devices.

It is another object of the present invention to provide an outboard support for a reel constructed to be free from excessive wear and distortion of parts, in which the support is constructed as an integral part of the reel housing wherein its quick and accurate registry with the mandrel is assured.

It is a further object of the present invention to provide a unitary reel and outboard support whereby the reel and the support can be shifted axially as a unit to allow for strip guiding.

According to one form of the present invention, there is provided a reel for coiling strip material comprising a base for slidably supporting a housing, a mandrel rotatably supported by said housing and over-hanging one side thereof, means for supporting the outboard end of said mandrel rigidly connected to said housing, said supporting means including an arm having a portion engageable with the outboard end of the mandrel, means for positioning said portion of said arm into a supporting position with the mandrel and operative to withdraw said arm clear of said mandrel.

These objects as well as the various other features and advantages of the invention will become apparent when the following description is read in conjunction with the accompanying drawing of which:

FIGURE 1 is an end view of a coiling reel incorporating the features of the present invention,

FIGURE 2 is a plan sectional view taken along lines II-II of FIGURE 1, and

FIGURE 3 is a sectional elevational view taken along lines IIIIII of FGURE 1.

With reference now to the drawings and, particularly, FIGURES 2 and 3, there is illustrated a strip-coiling reel 10 which includes a mandrel 11 received in and supported at one end by a housing 12. While not shown in the drawings, contained within the housing 12 is suitable gearing connected to the mandrel 11 for rotating it during the coiling operation. As shown in FIGURE 1, the housing 12 is constructed with opposed horizontally extending projections 13. These projections are each slidably received in bearing-lined

surfaces

14 and 15 formed in vertically arranged base members 16 and 17 which are, in turn, secured at their lower ends to the foundation,

With reference again to the housing 12, a bracket 18 is formed on the bottom surface thereof to which there is connected the rod of a. piston cylinder assembly 19. Operation of this piston cylinder assembly provides axial adjustment to the housing 12 and, thus, the mandrel 11 by sliding the projections 13 over the bearing lined

surfaces

14 and 15 of the base members 16 and 17. As heretofore indicated, this shifting of the mandrel by appropriate automatic controls, well known in the art, assures the formation of a straight sided coil and allowance is made should the strip wander transversely.

As one views FIGURES l and 3, there is provided an elongated T-shaped bed 21 secured to the foundation and arranged below and at the right-hand side of the mandrel 11. A tie arm 22 is slidably received on the bed 21 and is constructed with opposed longitudinally extending slots 23 and 24 into which there is received the upper portion of the T-shaped bed 21. The tie arm 22 is employed to interconnect the housing 12 with an outboard support apparatus for the mandrel 11.

Turning now specifically to the outboard support shown in the drawings, this support includes a bell crank arm 26 carried at its lower end on a horizontally extending shaft 27. A splined or keyed interconnection is provided between the arm 26 and the shaft 27 so as to permit relative axial movement, yet, prohibit relative rotational movement. The shaft 27 is rotatably mounted in

spacedapart bores

28 and 29 formed in upright portions of the tie arm 22. One end of the shaft 27 is constructed to extend through the bore 29 and to this end arms 31 are rigidly attached. Clovis-mounted to one of these arms 31 is a piston cylinder assembly 32 having its rod connected to the bell crank arm 26. Also secured to the other arm 31 is the rod of a piston cylinder assembly 33 that is mounted to the tie arm 22. Operation of the piston cylinder assembly 32 effects longitudinal movement of the bell crank arm 26 on the shaft 27, while operation of the piston cylinder assembly 33 imparts rotational movement to the shaft 27 and the bell crank arm 26.

With reference now to FIGURES 2 and 3, a circular recess 34 is formed in the upper end of the bell crank arm 26 into which is received an anti-friction bearing 35. The extreme outer end of the mandrel has a cylindrical portion 36 over which the bearing 35 is positioned to support the outboard end of the reel. A registering means is provided to assure accurate positioning of the 3 bell crank arm 26 with respect to the reel. This means includes a stud 37 which is aflixed to the arm 26 and receivable in a bore 38 formed in an upright member 39 that is part of and projects from the tie arm 22.

With reference now to a brief description of the operation of the present invention, let it be assumed that the outboard support apparatus has been retracted to the right, away from the mandrel 11 as one views FIGURE 1. This will allow a coil formed on the mandrel 11 to be removed therefrom which is usually accomplished by a coil stripper car. It will be noted that such a car is shown in FIG- URE 1. When it is desired to position the outboard support in its operative position, viz., in the position shown in the drawings, the piston cylinder assembly 33 will be operated to rotate the arm 26 so that anti-friction hearing 35 located at the extreme upper end of the arm will be positioned approximately in front of the mandrel 11. At the same time the stud 37 will be brought into a position directly in front of the bore 38. At this point the piston cylinder assembly 32 will be operated to advance the arm 26 towards the mandrel 11 in which connection the stud 37 will first enter the bore 38 and automatically locate the anti-friction bearing 35 relative to the adjacent cylindrical portion 36 of the mandrel so that as the arm is further moved towards the mandrel and as the stud continues into the bore, the bearing 35 will be automatically placed on the cylindrical portion 36. Thus, it will be appreciated that the present invention provides an arrangement whereby the anti-friction bearing 35 is quickly, accurately, consistently and automatically registered with the mandrel 11.

It should also be noted that the rigid support between the reel housing 12 and the outboard support by virtue of the tie arm 22 resists any influence due to Wear and distortion of the parts from preventing the automatic registration of the outboard support with the mandrel.

In the operative position of the outboard support the mandrel 11 is rigidly supported by the bell crank arm 26 as previously indicated. With the elements located in this position, axial positioning of the mandrel to assure the formation of straight-sided coils may be accomplished Without the outboard support becoming disengaged from the mandrel. This is accomplished by reason of the tie arm 22 which interconnects the mandrel 11 and the housing 12 with the outboard support apparatus.

It will be appreciated that various other forms of the present invention other than what has been illustrated herein can be employed without departing from the scope thereof and that the invention may be employed in cooperation with devices other than reels of the type herein referred to for the purpose of explaining the invention.

In accordance with the provisions of the patent statutes, I have explained the principle and operation of my invention and have illustrated and described what I consider to represent the best embodiment thereof. However, I desire to have it understood that, Within the scope of the ap pended claims, the invention may be practiced otherwise than as specifically illustrated and described.

I claim:

1. A reel for coiling and/or uncoiling metallic strip material incident to processing in a rolling mill comprisa housing,

a mandrel rotatably supported by said housing at its inboard end and having an outboard strip receiving end overhanging one side of said housing, said strip receiving end of said mandrel being subject to forces inducing deflection thereof,

a support means for the outboard end of said mandrel for resisting said deflection and arranged so as not to interfere with strip passing to and from said mandrel,

means for positioning said support means into a sup porting position with said mandrel and,

a member rigidly uniting said housing and said support means whereby wear and distortion of said mandrel and said support means will not effect the quick and accurate positioning of said support relative to said mandrel,

said member carrying said support means and arranged at one side of said mandrel in a spaced parallelly extending relation below the mandrel.

2. A reel according to claim 1 further comprising:

a base for slidably supporting said housing,

a base for slidably supporting said support means, and

means for positioning said housing and, hence, said mandrel axially in a longitudinal direction whereby said support means will also move with said housing and mandrel.

3. A reel according to claim 1 in which said support means and said means positioning said support means includes:

an arm engageable with said mandrel,

a shaft carrying said arm,

means for imparting rotation movement to said arm,

and

means for imparting longitudinal movement to said arm in an axial direction relative to said shaft, where by successive operation of said last two mentioned means effect quick registration of said arm with said mandrel.

4. A reel according to claim 1 in which said support means includes:

an arm,

a shaft carrying said arm at one portion of said arm,

bearing means at a second portion of said arm engageable with said mandrel, and

means associated with said arm and said member for accurate registration of said arm with the mandrel, whereby said arm is swingable to a position remote from the mandrel for removing the strip therefrom.

References Cited by the Examiner UNITED STATES PATENTS 1,403,123 1/1922 Leedy 242-129 2,028,422 1/1936 Talbot 242-78 2,144,094 1/1939 Wood 242-129 X FRANK I. COHEN, Primary Examiner.

N. L. MINTZ, Assistant Examiner.

Claims

1. A REEL FOR COILING AND/OR UNCOILING METALLIC STRIP MATERIAL INCIDENT TO PROCESSING IN A ROLLING MILL COMPRISING: A HOUSING, A MANDREL ROTATABLY SUPPORTED BY SAID HOUSING AT ITS INBOARD END AND HAVING AN OUTBOARD STRIP RECEIVING END OVERHANGING ONE SIDE OF SAID HOUSING, SAID STRIP RECEIVING END OF SAID MANDREL BEING SUBJECTED TO FORCES INDUCING DEFLECTION THEREOF, A SUPPORT MEANS FOR THE OUTBOARD END OF SAID MANDREL FOR RESISTING SAID DEFLECTION AND ARRANGED SO AS NOT TO INTERFERE WITH STRIP PASSING TO AND FROM SAID MANDREL, MEANS FOR POSITIONING SAID SUPPORT MEANS INTO A SUPPORTING POSITION WITH SAID MANDREL AND, A MEMBER RIGIDLY UNITING SAID HOUSING AND SAID SUPPORT MEANS WHEREBY WEAR AND DISTORTION OF SAID MANDREL AND SAID SUPPORT MEANS WILL NOT EFFECT THE QUICK AND ACCURATE POSITIONING OF SAID SUPPORT RELATIVE TO SAID MANDREL, SAID MEMBER CARRYING SAID SUPPORT MEANS AND ARRANGED AT ONE SIDE OF SAID MANDREL IN A SPACED PARALLELLY EXTENDING RELATION BELOW THE MANDREL.