US2926416A

US2926416A - Thread pulling and winding device

Info

Publication number: US2926416A
Application number: US689102A
Authority: US
Inventors: Feldstein Maksymilian; Harry J Friend
Original assignee: Individual
Current assignee: Individual
Priority date: 1957-10-09
Filing date: 1957-10-09
Publication date: 1960-03-01
Anticipated expiration: 1977-03-01

Description

March 1, 19 0 M. FELDSTEIN ETAL 2,925,416

THREAD PULLING AND WINDING DEVICE Filed Oct. 9, 1957 INVENTORS MAKSYMILIAN FeLns'rEm BY HARRY J. FRIEND ELM-4% Arron/er United States Patent THREAD PULLING AND WINDING DEVICE Maksymilian Feldstein and Harry J. Friend, Miami, Fla.

Application October 9, 1957, Serial No. 689,102

2 Claims. (Cl. 28-17) This invention relates to a thread pulling and winding device.

In various manufacturing or processing operations, it is often necessary to remove thread from various fabric or textile blanks. For example, in the manufacture of sweaters and similar knitwear, the elements constituting the sweaters are continuously fed from the knitting machines and with the elements being connected together by threads. Before they can be used in production, these elements must be separated from each other by WtihdraW- ing the threads that bind them together. Heretofore, this was performed by a manual operation which, in addition to being costly, was also a time consuming operation which tended to slow down the manufacturing process for the finished article and frequently resulted in damage to the hands of the operator during such manual pulling. Therefore, the primary object of the present invention is to provide means for quickly and easily pulling the connecting threads and winding them upon a suitable winding drum.

The invention contemplates a winding drum that is provided with a plurality of radially projecting pins for hooking engagement with the threads to be pulled and with the drum being disposed upon a driven shaft in concentric relation to be driven by a suitable prime mover and with collars disposed upon the shaft and engageable with the drum at its opposite ends whereby to removably lock the drum in driven engagement with the shaft.

The invention further contemplates a winding drum having spaced apart and radially staggered pins and with the pins being in such staggered relation to each other that at any given point of stopping of the drum, at least one of the .pins will be upstanding to a degree that permits the next thread to be wound to be con nected thereto.

Novel features of construction and operation of the device will be more clearly apparent during the course of the following description, reference being had to the accompanying drawings wherein has been illustrated a preferred form of the device and wherein like characters of reference are employed to denote like parts throughout the several figures.

In the drawings:

Figure 1 is a plan view of a winding device embodying the invention and associated with a worktable whereon is supported the elements to be separated by the pulling of the threads,

Figure 2 is a side elevation of the device,

Figure 3 is a perspective view of a winding drum having radial pins,

Figure 4 is a fragmentary longitudinal section, shghtly enlarged, taken on line 4-4 of Figure l, and

Figure 5 is an enlarged transverse section taken substantially on line 55 of Figure 2.

Referring specifically to the drawings, the numeral 5 designates a worktable upon which is disposed the series of knitted elements 6 that are knitted and connected together as, they are fed from the knitting machine, by threads 7. The elements 6 are usually knitted in tubular form when constituting such articles as sweater elements and it becomes necessary, that these elements be subsequently separated by pulling the threads 7 outwardly after clipping one end. The particular article here illustrated serves as an example of other articles that are continuously knitted and connected in a continuous strip from the knitting machine and the invention is in no sense restricted to the use of the invention to be hereinafter described.

Disposed preferably parallel to and adjacent the worktable 5, is a table 8. The table 8 may be of the same height as the table 5 and supported by legs 9. Fixed upon the surface of the table 8 are a pair of spaced apart journal bearings 10, rotatably supporting an elongated shaft 11. The shaft 11 is intermittently driven through the medium of a pulley 12, driven by a prime mover 13, such as an electric motor, through the medium of a flexible belt 14. The prime mover 13 is intermittently actuated in a conventional manner by any suitable treadle switch, not shown that is positioned adjacent the footof the operator for convenient use and whereby the operator may shift the knitted articles along the table 5, start the thread 7 outwardly of the knitted article and then actuate the prime mover for pulling and winding the thread. The shaft 11 extends beyond one journal bearing 10, as clearly illustrated and is provided with a cylindrical collar 15, that is fixed for rotation with the shaft by a set screw 16. Shiftably disposed upon the outer end of the shaft extension, is a second cylindrical collar 17, adjustably fixed upon the shaft by a suitable set screw 18.

The Winding drum, see particularly Figure 3 embodies a cylindrical and preferably metallic drum 19, open at its opposite ends. The drum 19 is adapted to be disposed over and in concentric relation to the shaft 11 to be supported upon the

collars

15 and 17 by set

screws

16 and 18 respectively and whereby the collars constitute the driving means for the drum 19. The drum 19 is apertured as illustrated particularly at 20 in Figure 5 for the frictional or threaded insertion of pins 21 so that the pins project beyond the surfaces of the drum an equal distance. The apertures 20 and the pins are equidistantly spaced along the length of the drum and with the apertures and pins being circumferentially staggered so that in substantially all positions of stopping of the device, at least one pin will be substantially upstanding for the reception of the next thread to be engaged thereover.

Operation With the collar 15 fixed upon the shaft 11 adjacent one journal bearing 10, a drum 19 and its associated pins are slipped over the shaft extension to engage the collar 15, after which the collar 17 is engaged with the shaft and is shifted to engagement Within the free end of the drum 19 after which the set

screws

16 and 18 respectively are tightened thus fixing the assembly for operation. As the knitted material is shifted along the table 5, the operator clips the end of the thread 7 and pulls the opposite loop end outwardly a sufficient distance to hook the thread over an upstanding pin 21. The treadle switch is then actuated, causing the prime mover 13 to drive the shaft and the drum 19 in a direction to wind the thread 7 upon the drum, completely pulling the thread from the knitted material and separating the elements for subsequent use. This action is continued as the material constituting the knitted articles are fed from the knitting machine and the drum 19 is calculated to having a capacity of substantially a days work. With the pins 21 in spaced apart relation, the drum is substan- 3 tially filled at the end of the day and after the winding has been completed, a cutting knife is employed to slice through the windings longitudinally of the drum, permitting the threads to fall away. It has been found desirable, to avoid a too frequent sharpening of the cutting knife, to lay a strip of cardboard upon the drum longitudinally and with the strip being manually held during the first winding of a thread, after which the thread will hold the strip in position for the continuous operation of the device for its maximum load of windings. Thus, the cutting knife can be drawn along the length of the cardboard strip, protecting the sharpened blade and requiring a resharpening at relatively infrequent intervals.

It will be apparent from the foregoing that a very novel form of pulling and winding device for connecting threads of knitted textile articles has been provided. The structure is simple, is positive in operation and results in a very considerable saving of time over the hand pulling method which, in actual practice required approximately 30 seconds for an operator to hand pull the threads, while the device of this invention completely pulls and winds the thread in approximately seconds.

'The thread is all completely wound upon the drum in a relatively even roll, since the pins 21 are spaced along the length of the drum 19. The pins 21 as arranged in the manner shown always presents at least one pin upstanding for the reception of a thread to be hooked thereon. While but four pins have been illustrated, it will be apparent that a greater number may be employed with equal success, but it has been found that the use of four pins in staggered relation always permits at least one pin to be upstanding when the machine is at rest. The device is strong, durable, cheap to manufacture and is highly efficient and economical as a means of pulling and winding the connecting threads of textile articles.

It is to be understood that the invention is not limited to the precise construction shown, but that changes are contemplated as readily fall within the spirit of the invention as shall be determined by the scope of the subjoined claims.

Having described our invention, what we claim as new and desire to secure by- Letters Patent is:

1. A thread pulling and winding machine and whereby a connecting thread between continuously knitted textile blanks is pulled outwardly to separate the individual blanks and to wind the thread upon an accumulating drum, the machine embodying in combination a work table for the manual shifting support of the knitted blanks and a pulling and winding device comprising an elongated drive shaft that is rotatably journalled upon a support, means for intermittently driving the shaft, the shaft being extended outwardly beyond one journal, a winding drum that is engageably over the extended shaft to be concentric thereto, the drum being cylindrical and open at its opposite ends, a relatively fixed collar carried by the shaft extension and whereby to engage within one open end of the drum, a second collar engageable upon the outer end of the shaft extension to have an engagement in the opposite open end of the drum, means to fix the collars upon the shaft to rotate therewith and means to fix the drum to the collars, outwardly extending pins that are spaced'apart longitudinally of the drum and with the several pins also being circumferentially staggered with respect to the drum, the pins constituting projections upon which the thread being pulled is initially hooked.

2. The structure according to claim l, wherein the drum is apertured transversely for the insertion of the pins, the apertures being equidistantly spaced along the length of the drum, the apertures also being circumferentially staggered around the drum and whereby pins inserted therethro-ugh will be radially disposed and whereby one pin will be approximately upstanding when the rotation of the drum is interrupted.

References Cited in the file of this patent UNITED STATES PATENTS 2,735,158 Wilson et al Feb. 21, 1956 2,779,084 Kastrinsky ..V H Jan. 29, 1957 FOREIGN PATENTS 1,098,533 France Mar. 9, 1955