US2461231A - Winding machine - Google Patents

Description

Feb. 8, 1949. R. OPPENHEIM 2,461,231

WINDING MACHINE Filed Oct 5, 1945 Q 2 Sheets-Sheet l \NVENTOR aum M ATTORNE Y Feb. 8, 1949. QPPENHElM 2,461,231

WINDING MACHINE Filed Oct. 5, 1945 2 Sheets-Sheet 2 INVENTOR 41. PH OPPf/Vf/f/M ATTORNEY Patented Feb. 8, 1949 UNITED STATES PATENT OFFICE Application October 1945, Serial No. 620,444

13 Claims.

This invention relates to a machine for winding strands or hands of rafiia or any other material that comes in short or uneven length strands around strips of cloth, paper or belting or any other desirable filling.

The principal object of this invention is to provide a machine to facilitate the wrapping of strands or the like of any suitable material helically around strips of any suitable material and includes the provision of mechanism for tucking in the rear ends of a strand under the forward end of the next succeeding strand; mechanism for facilitating the wrapping of strands of different widths upon strips of different widths, and means for controlling the pitch of the helical wrapping and for controlling the thinness or thickness or amount of overlapping of the wrapping material.

Another object of the invention consists in the provision of means for facilitating the use of winding shafts of different diameters, improved means for holding the strip upon which the material is wound against the winding shaft immediately ahead of the wrapping region and means for holding the last convolutions of the helical wrapping compacted against the shaft.

Other objects of the invention will appear from the following description taken in connection with the drawings in which,

Figure 1 is a top plan view of a preferred embodiment of my invention;

Figure 2 is a transverse vertical view on line 22 of Figure 1;

Figure 3 is a transverse vertical view on line 3-3 of Figure 1;

Figure 4 is a vertical longitudinal view on line 4-4 of Figure 2;

Figure 5 is a transverse vertical view on line 55 of Figure 4;

Figure 6 shows in detail means for holding the last wound section of the strand compacted on the winding shaft; and

Figure '7 shows a short section of the finished article produced on the machine.

In the preferred construction disclosed in the drawings the machine comprises a frame F which includes a rectangular table ID on which various elements of the machine are supported. This table is supported on legs H at a convenient distance from the floor.

The motive power for the machine is preferably derived from a motor M, Figure 3, mounted on a shelf l2 located below the supporting table l0, and which drives a pulley I 3 over which passes a belt l4, see also Figure 1, passing over a pulley I5 mounted on the end of a shaft l5 suitably supported in bearings H in a bracket E8 on the table If].

The shaft i6 is the main distributing shaft and is equipped with a pulley 29 over which passes a belt 2| passing over a pulley 22 on a short shaft 23 journalled in a bearing 24 in a bracket 25 supported on the table if). The end of the short shaft 23 is provided with a collar 26 which is equipped with a driving dog 2! which cooperates with a driving member 29 secured on a winding shaft 3%].

The shaft 23 is provided with a conical end 3| which projects into a conical recess in one end of the shaft 30. The other end of the shaft 39 is provided with a conical recess to receive a similar conical end 3! ofa bearing 32 threaded in a mounting and dismounting of the shaft 3!! and 7 replacement of the shaft 39 by shafts of different diameters.

Also mounted on the distributing shaft l6, Figures 1 and 3, is a variable pitch pulley 35 over which passes abelt 35 passing over a pulley 37 on a screw shaft 38 journalled at one end in a bear ing in a bracket 39 supported on the table Hi and at its other end in a bearing in a bracket 40 supported 0n the table I I].

Secured in openings 42 and 43 in the brackets 39 and 4!! is a carriage supporting and guiding rod 44.

A tension carriage disclosed at 48, Figure 2, is provided with a hub 49 which slides and rocks on the rod 44. It is also provided. with a half cylindrical threaded enlargement 5! to cooperate with the screw shaft 38 for moving the carriage lengthwise of the winding shaft 31!.

The tension carriage is preferably of the shape disclosed in Figure 2 and includes a horizontal portion 53 and a vertical end section 54 on the upper end of which is mounted a sprin pressed tension mechanism 56 of a well-known construction comprising discs sprin pressed together to grip the rama and hold it with the desired tension. The raffia or other strand is shown at 5'! as passing between the discs of the tension memher and as also passing'under anL-shaped hook member 58 pivoted on the tension carriage at the base of the vertical member 54 to hold the strand between the discs of the tension device.

For the purpose of facilitating the removal of the strand wrapped strip from the Winding shaft 30, the shaft 3i! employed with any width backing strip is preferably of a circumferential dimension which is slightly less than twice the Width i of the backing strip 8% which may be held on the shaft by spring clips ii. M

For the purpose of increasing the effective circurnference of the winding shaft on which the strand is wound, the shaft is provided with a longitudinal groove 63 to slidably receive an auxiliary or complemental short shaft 6% which is preferably provided with a tapered end as shown in Figure 4, so as to facilitate its withdrawal from the last convolutions of the strands wound on strip during the wrapping operation.

This auxiliary shaft is provided with an upstanding member 66, Figure 4, which is threaded to receive a screw threaded member El supported by means of a collar t3 and a manipulative head 65 in a lateral flange of a ring H which encircles the winding shaft and which is moved along the length of the shaft as the winding proceeds.

The ring 'li is provided with a pair of supporting rollers '53 and M which bear against the strip to hold the some against the winding and auxiliary shafts at a point in advance of the region in which the winding takes place. These rollers are supported on plungers i5 and 18 which are threaded to recieve threaded adjustable members ll and 13, the construction in all respects being the same as that of the-means for positioning and adjusting the auxiliary shaft 65'. The members 6?, "if and it are adjusted to position and hold the rin ll concentric with the Winding shaft 3% and to accommodate various diameters of winding shafts for the purpose of wrapping strands on strips of different widths.

For the purpose of advancing the ring I I, the auxiliary shaft 641 and the rollers 73 and T4, the left side face of the ring ll, Figure 4, is arranged in a plane extending normal to the axis of the winding shaft to provide a track against which bear rollers 86 and ti supported on members 82 and 83 projecting upwardly from a' horizontal plate Sl t on the right side of the horizontal portion 53 of the carriage 53. As the carriage is advanced toward the right, Figure l, the rollers 8 and 6! press on the ring H and move the auxiliary shaft t l and rollers 73 and M toward the right.

In order to wrap successive strands about the winding shaft 393 without the necessity of securing the ends of the strands together and also for the purpose of controlling the accurate winding of the strands on the shaft a strand guiding member 5%, Figures 1 and 2, is provided The guiding member 98 is pivoted on the horizontal portion 53 of the carriage and is inclined toward and rests on the winding shaft as shown more particularly in Figure 2. The construction is such that the guiding member 90 presses against the left edge of the strand being wound and guides the strand onto the cylinder so as to wind and lay it a true helical path.

Also pivo-tally supported on the horizontal portion 53 of the carriage is a hell crank 92, Figures 1 and 2, spring pressed clockwise by a spring 93, Figure 2, to urge a roller fi l carried by the upper end of the bell crank toward the rear face of the win cylind r Sil. This roller is of such length is so positioned as shown in Figure 1, as to engage the last wound and several other adjacent convolutions of the strand to hold the wrapping compact.

In the operation of wrapping when an end of a strand approaches the tensioning device, a

new strand is placed betweenthe strand that is at which the strand being wound approaches the winding shaft, and then after the new strand has been gripped and pressed against the windingshaft by the strand being wound, the new strand is placed in the tensioning device. When the rear end of the first of these strips leaves the tensioning device, the guide bar which presses against the left edge of both strips moves the freed rear end of the first strip toward the right, and the roller 84 presses against it and holds it in that position, and then as the Wrapping is continued with the second strip, the second strip huries the end of the first strip underneath it.

I claim: 7

1. A strand winding machine comprising a rotatable winding shaft and an auxiliary shaft keyed on the periphery of said winding shaft for rotation therewith and for longitudinal sliding movement thereon.

2. A winding shaft comprising complementary members, one of which is constituted a main winding shaft and the other of which consists of a short compieinentary shaft keyed on the peiery of said main shaft for longitudinal sliding movement thereon and for rotation therewith, nor-t shalt being provided with a tapered rear end.

3. A winding shaft comprising a main shaft and a complementary short shaft keyed on the periphery of said main shaft for l ngitudinal slid movement icreon and for rotation therewith, means for rotating said shafts and for sliding said complementary shaft longitudinally of said main shaft at a speed proportional to the speed of rotation of said shafts.

a. A winding shaft comprising a main shaft a complementary short shaft keyed on the periphery of said main shaft for longitudinal sliding movement thereon and for rotation'there with, means for rotating said shafts and for slid- ,ing said complementary shaft longitudinally of said main shaft at any one of a plurality of speeds each proportional to the speed of rotation of said shafts. I

5. A winding shaft comprising a main shaft a complementary short shaft keyed on the periphery of said main shaft for longitudinal sliding movement thereon and for rotation ther with, means for rotating said shafts and for sliding said complementary shaft longitudinally of said main shaft at a speed proportional to the speed of rotation of said shafts, and strand guid ing means movable with said complementary shaft.

6, A winding shaft comprising a main shaft and a complementary short shaft keyed on the periphery of said main'shaft for longitudinal sliding movement thereon and for rotation thercwith, means for rotating said shafts, a carriage mounted for movement longitudinally of said shafts, means for moving said carriage longitudinally of said main shaft at a speed proportional to the speed of rotation of said shafts, a strand guide supported on said carriage and means transmitting the movement of said carriage to said complementary shaft.

'7. A winding shaft comprising a main shaft a complementary short shaft keyed on the periphery of said main shaft for longitudinal sliding movement thereon and for rotation therewith, means for rotating said shafts, a carriage mounted for movement longitudinally of said shafts, means for moving said carriage longitudinally of said main shaft at a speed proportional to the speed of rotation of said shafts, a strand guide supported on said carriage, means transmitting the movement of said carriage to said complementatry shaft, said means comprising ring connected to said complementary shaft and arranged concentrically with said shafts and means on said carriage for engaging and moving said ring longitudinally of said shafts.

8. In combination with a winding shaft of an auxiliary short shaft keyed on the exterior of said winding shaft for rotation therewith and for longitudinal sliding movement thereon, a ring surrounding said shafts, radially adjustable means connecting said ring to said short shaft, and means cooperating with said ring for moving said short shaft longitudinally of said winding shaft as said winding shaft is rotated.

9. In combination with a winding shaft, of an auxiliary short shaft keyed on the exterior of said winding shaft for rotation therewith and for longitudinal sliding movement thereon, a ring surrounding said shafts, radially adjustable means connecting said ring to said short shaft, means cooperating with said ring for moving said short shaft longitudinally of said Winding shaft as said winding shaft is rotated, and additional radially adjustable means carried by said ring and cooperating with said winding shaft to hold said auxiliary shaft in sliding contact with said winding shaft.

10. In combination with a winding shaft, of an auxiliary short, shaft keyed on the exterior of said winding shaft for rotation therewith and for longitudinal sliding movement thereof, a ring surrounding said shafts, radially adjustable means connecting said ring to said short shaft, means cooperating with said ring for moving said short shaft longitudinally of said winding shaft as said winding shaft is rotated, additional radially adjustable means carried by said ring and cooperating with said winding shaft to hold said auxiliary shaft in sliding contact with said winding shaft, means for securing a backing strip to said winding shaft, and rollers on said additional adjustable means adapted to bear on a backing strip attached to said winding shaft.

11. In combination with a winding shaft, of an auxiliary short shaft keyed on the exterior of said winding shaft for rotation therewith and for longitudinal sliding movement thereon, a ring surrounding said shafts, radially adjustable means connecting said ring to said short shaft, means cooperating with said ring for moving said short shaft longitudinally of said winding shaft as said winding shaft is rotated, additional ad- 6 justable means carried by said ring and cooperating with said winding shaft to hold said ring concentric with said winding shaft, means for securing a backing strip to said winding shaft, rollers on said additional adjustable means adapted to bear on a backing strip attached to said winding shaft, means adjacent to the rear of said rollers for guiding a strand to wind the same helically on said shafts and roller means adjacent to said guiding means and to the rear thereof adapted to bear against the last wound convolutions of a strand as it is being wound on' said strip and shafts for holding said convolutions compact.

12. In combination with a winding shaft, of a carriage movable along the length of said shaft as the shaft is being rotated, strand tensioning means carried by said carriage, and strand guiding means carried by said carriage and bearing against the rear edge of a strand being wound on said shaft and operating as the rear end of the strand leaves said tensioning device to move said end of the strand out of the helical path of the Wound portion of the strand.

13. In combination with a winding shaft, of a carriage movable along the length of the shaft as the shaft is being rotated, strand tensioning means carried by said carriage, strand guiding means carried by said carriage. and bearing against the rear edge of a strand being wound on said shaft and operating as the rear end of the strand leaves said tensioning device to move said end of the strand out of the helical path on and cover the rear end of the first-mentioned V strand.

RALPH OPPE'NHEIMv REFERENCES CITED The following references are file of this patent:

UNITED STATES PATENTS Name Date Hutchins Oct. 22, 1895 of record in the Number

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