US2325559A - Strip coiler - Google Patents

Description

5 Sheets-Sheet l Illlllli July 27, 1943. P, H. wAsHAM, JR

STRIP COILER Filed Sept. 5, 1942 July 27, 1943. P. H. wAsHAM, JR 2,325,559

STRIP COILER Filed Sept. 5, 1942 I3 Sheets-Sheet 2 INVENTOR by: I

July 27, 1943. I P. H. wAsHAM, .JR 2,325,559

STRIP COILER Filed Sept. 5, 1942 3 Sheets-Sheet 3 INVENTOR Patented July 27, 1943 UNITED STATES PATENT FFICE STRIP COILER Patrick Henry Washam, Jr., Dravosburg, Pa.

Application September 5, 1942, Serial No. 457,501

4 Claims.

The present invention relates to improvements in coilers such as those used in coiling strip coming from a continuous strip mill.

The invention aims to provide means whereby adjustments can be easily and quickly made so as to compensate. for wear in the parts which connect the several frames carrying a series of coiling rolls.

More specifically, the invention aims to provide a circular series of power-driven rolls frictionally engaging the outer convolution of a strip being coiled, in combination with carrier frames supporting said rolls in a hanger link, a crank arm connected with each carrier frame, levers and links connecting the several crank arms in such manner that the several frames can be moved by the crank arms in unison toward and from the axis of the coiled strip engaged by the circular series of rolls, and wherein each crank arm has an eccentric pin connection interposed between it and the frame which is effective to vary the relative position between the crank arm and the frame so as to permit of making a precision adjustment of the relationship of the coiling rolls to the coil of strip, to thus compensate for wear of any of the parts in the train of connections.

The above and more detailed aspects of the invention will be fully apparent from` consideration of the accompanying drawings when read in connection with the following detailed description.

In the drawings:

Figure 1 is a vertical section through a hot strip coiler embodying the present invention.

Figure 2 is an enlarged section on line IIV-II of Figure 1. i

Figure 3 is an enlarged fragmentary detail illustrating a movably mounted frame carrying coiler rolls, a hanger adjustably supporting the frame, a crank and operating connections for varying the position of the frame, and an eccentric pin connectingv the crank with the frame.

Figure 4 is an enlarged fragmentary view showing details of the eccentric connection between the crank arm and the Aframe which carries the coiling rolls. l

Figure 5 is a front elevation of certain parts shown in Figure 4. f

Figure 6 is a detail section on line VI-fVI of Figure 4..

Referring in detail to the drawings, I0 represents the frame of a somewhat conventional form of hot strip coiler. Hot strip is fed from a con-A tinuous rolling mill through entrance guides I 2 into coaction with pinch rolls I4 and I6 which advance the strip to be coiled through guides I8 which direct the strip to a dcflector roll 20 rotatably mounted in a frame 22 whose position can be varied toward and from the axis of the coiling arbor 24 by movement of a crank arm 26 carried by a rock shaft 28 which also carries an arm 30.

After the strip passes the defiector roll 20, it is adapted to be guided in a substantially circular path during coiling by a circular series of rolls 32 which, as illustrated, are arranged in pairs, each pair of rolls being rotatably supported in a respective frame 34, and each pair being driven by a `respective drive motor 35 which is secured to and movable with the frame 34. The several frames, one of which is shown in detail in Figure 3, are of identical construction, and therefore'a description of one will suilice for all. Associated with each frame is a rock shaft 36 carrying a crank arm 38 which isV connected with the frame by an eccentric pin 40. Each pin, as best shown in Figure 4, includes a pair of concentric journal portions 42 and 44 rotating in bushings 46 and 48 secured to the frame 34. The intermediate portion 50 of the pin is eccentric to the journal portions42 and 44, and this-eccentric portion coacts with a roller bearing 52 mounted in the crank 38. The pin at one end is provided with an enlargement in the form of a flange 54 which is concentric with the journal portions 42 and 44. This flange has a multiplicity of circularly spaced apertures 56 formed therein, any

one of which is adapted to coact with a locking bolt 58 which is removably secured in a tapped hole 60 formed in the frame 34. Projecting outwardly from the flange 54 is a squared head 62 adapted to be engaged with a suitable wrench or tool for turning the eccentric.

With the construction described, it will be apparent that whena turning motion is applied to the head 62, the eccentric portion 5D will cause a relative movement to be effected between the frame 34 'and thecrank 38. -Such an adjustment is highly desirable in a coller of the type illus. trated, for the reason that the several frames 34 are adjustably hung from links 64 carried by the rock shafts 66.

The several frames are connected through arms 68 secured tothe rock shafts 66, the arm l68 be-- ing connected in turn by links lll. The linkage connections are such that a piston 'I2 operatseveral movably mounted frames 34, and thus 4cause the rollers 32 carried thereby to move toward or from the axis of rotation of the ceiling arbor 24.

Heretofore, when lost motion developed in the linkage connections as the result of wear, trouble was' experienced in the coiling operations. The present invention provides a simple yet very effective means for compensating for wear, so as to take up lost motion. When wear develops to such a point that improper coiling is noticeable, any one or all of the several eccentric pins may be easily and quickly adjusted, and once the desired adjustment is secured,- the particular adjusted pin can be locked in its new position of vangular adjustment by engagement of the locking bolt 58 with an appropriate aperture 5E.

. Thus it is apparent that the invention provides for the individual precision adjustment `of each carrier frame 34 so as to compensate for wear in the linkage or other parts of the apparatus. This is a highly desirable feature in coilers of the type illustrated, since it eliminates the telescoping of coils and effectively maintains the coiler rolls 32 in position so as to properly coil the strip under various conditions of operation.

While I have described a specific embodiment of the invention which an actual reduction to practice has demonstrated is highly desirable, it is not -to be construed that I am limited thereto, since various modifications and substitutions of equivalents are contemplated within the scopel of the appended claims.

I claim:

l. A coiler of the class described, comprising a circular series of power-driven rolls for frictionally engaging the outer convolution of strip being coiled, carrier frames for said rolls, a hanger link and a crank arm connected with each carrier frame, levers and links connecting the several .crank arms in such manner that the several l frames can be moved by said cranks in unison toward and from the axis of the coiled strip engaged by said circular series of rolls, each said crank arm having an eccentric pin connection with said frame effective to vary the relative position between the crank arm and .the frame to eral crank arms in such manner that the several frames can be moved by said cranks in unison toward and from the axis of the coiled strip engaged by said circular series of rolls, each said frame having a pin with a journal rotatably mounted therein, said pin having a portion eccentric to said journal engaging said crank adapted to be turned to diierent positions so as to vary the position between each crank with relation to each frame to thus provide for individual precision adjustments to compensate for wear.

3. A coiler of the class described, comprising a circular series of power-driven rolls for frictionally engaging the outer convolution of strip being coiled, carrier frames for said 'rolls, a hanger link and a crank arm connected with each carrier frame, levers and links connecting the several crank arms in such manner that the several frames can be moved by said cranks in unison toward and from the axis of the coiled strip engaged by said circular series of rolls, each said frame having a pin with a journal portion rotatably mounted therein, said .pin having a portion eccentric to said journal engaging said crank adapted to be turned to dilerent positions so as to vary the relative position between each crank and each frame to permit of individual precision adjustments tocompensate for permit of precision adjustment of the relation-v l wear, and means for locking the pin to said frame in a plurality of angular positions of adjustment.

4. A coiler of the class described, comprising a circular series of power-driven rolls for frictionally engaging the outer convolution of strip being coiled, carrier frames for said rolls, a hanger link and a crank arm connected with each carrier frame,y levers and links connecting the several crank arms in such manner .that the several frames can be moved by said cranks in unison toward and from the axis of the coiled strip engaged by said circular series of rolls, each said frame having a pin with a journal 'rotatably mounted therein, said pin having a portion eccentric to said journal engaging said crank adapted to be turned to different positions so as to vary the relative position between each crank and each frame to permit of individual precision adjustments to compensate for wear, said pin having a flange formed with a plurality of locking apertures and means removably secured to the frame coacting with said apertures for locking said pin in various angular positions of adjustment.

PATRICK HENRY WASI-IAM, JR.

Images