US3036784A

US3036784A - Winding apparatus for use in synthetic thread spinning machines

Info

Publication number: US3036784A
Application number: US762492A
Authority: US
Inventors: Schippers Heinz; Weber Wolfgang
Original assignee: Barmag Barmer Maschinenfabrik AG
Current assignee: Oerlikon Barmag AG
Priority date: 1957-09-25
Filing date: 1958-09-22
Publication date: 1962-05-29
Anticipated expiration: 1979-05-29
Also published as: NL109147C; CH365175A; DE1131844B; GB875715A

Description

y 1962 H, SCHIPPERS ETAL 3,036,784

WINDING APPARATUS FOR USE IN SYNTHETIC THREAD SPINNING MACHINES Filed Sept. 22. 1958 INVENTORS: H EIN Z SCHIPPERS WOLFGANG WEBER M ATT'YS rates This invention, in general relates to thread-winding apparatus and arrangements thereof which are adapted for use in machines for spinning synthetic filaments or threads.

The basic design of thread-winding apparatus used in spinning machines has been the arrangement of individual winding devices in horizontal rows in one or more tiers. The basic and most commonly used arrangement is one in which the winding spools, bobbins, etc., and reciprocable thread-laying devices extend from one side of a vertical wall extending over the length of the spinning machine. The motor and drive assemblies are positioned on the back or opposite side of the wall, primarily to better protect these parts against moisture resulting from the spinning operation. The floor space given to this type of machine must also include an aisle on the front side of the machine for the operator thereof as well as a special aisle or passage on the rear side of the machine to provide for maintenance of the motor and drive assemblies. While the machine wall fulfills the function of a separating wall, this arrangement is troublesome during replacements of individual thread-winding apparatus or even the entire spinning spool section. In the latter case, it is usually necessary to shut down the spinning operation in immediately adjacent positions for a period of time.

The primary object of this invention is to provide improvements in the construction and arrangement of thread-winding apparatus to be used in conjunction with spinning machines for spinning synthetic threads or filaments. These improvements relate to the reduction in time for interchanging defective parts of the thread-wind ing section of the spinning machine, which replacements may be made Without shutting oh the spinning process. Furthermore, the improvements also relate to better utilization of floor space by the spinning machines.

In accordance with our invention, the winding portion of thread or filament spinning machines is com posed of individual winding devices wherein each winding device is an independently operable unit assembled on a long machine frame and readily removable therefrom. Each unit has an individual drive or drives for its rotatable winding element and its reciprocating thread-laying device. In this form, the thread-winding units may be placed in and taken out of a frame as needs dictate.

The parts of each winding unit which do not come into direct contact with the thread being wound are preferably all placed inside the unit frame or housing. The parts of the unit which come into contact with the thread project from the front side of the unit frame or housing in a direction perpendicular to the length of the total machine. Each unit has a block-shaped supporting structure, which may take the form of an open frame, a frame with side plates, or a housing which is closed on all sides.

Another feature of the invention which contributes a space-saving advantage is in the construction of the thread-winding carrier and drive therefor with the commonly employed friction roller drive for the thread-winding carrier, which is rotatably driven by the drive roller through frictional contact. As hereinafter described, it is advantageous to make the winding carrier laterally I atent movable with the drive roller rotatably mounted in a fixed position. By this arrangement, the thread path from the thread supply rollers or godets to the winding carrier remains constant. Heretofore, the thread path was displaced angularly as the winding on the thread carrier became greater. In accordance with our invention, the contact point of the thread at the friction drive roller and the winding remains constantthe increase in diameter of the winding being compensated by the lateral movement of the winding carrier and its winding as the diameter increases. We have found this construction of advantage in the maintenance of uniform thread-winding conditions.

Still another features of our invention is the provision of construction which permits the simultaneous winding on a given thread-winding unit of a plurality of individually separated windings. In winding constructions heretofore employed, wherein a number of separate windings are provided adjacent each other on a winding carrier, the carrier was positioned along the length of the machine. In accordance with our invention, the winding carrier projects perpendicular to the length of the machine. This arrangement is advantageous over that previously described because it is more economical with respect to tfloor space occupied on a comparable basis.

One preferred embodiment of the invention is illustrated in the accompanying drawing, wherein:

FIG. 1 is a schematic side elevation showing the arrangement of several thread-winding units positioned in horizontal rows and in tiers on the machine frame;

FIG. 2 is a top plan view of an individual threadwinding unit with the top cover of the housing removed; and

FIG. 3 is a partial, sectional view illustrating the mounting of the winding carrier in the thread-winding unit.

Groups of synthetic filaments T from the spinning heads of the spinning machine are conducted in common over driven

godet rollers

10, 12 and are thereafter conducted individually or in groups to the thread-winding units and thereon wound. Each thread-winding unit is composed of a closed housing 14, which is block-shaped in external configuration. Extending outwardly from the front side of the housing is a winding carrier 16, in this case having a cylindrical shape. Also extending from the front of the housing 14 and parallel with the winding carrier 16 is a roller 62. The roiler s2 is rotatably driven by a drive motor mounted inside the roller 62. The drive motor consists of a rotor 18 rotatably mounted about a central, fixed stator 20. The outside rotor 18 is secured to the roller 62thereby driving the roller 62 upon energization of the electric motor.

The winding carrier 16 is mounted for free rotation on supporting shaft or axle 22, which extends outwardly from the housing 14 in a direction perpendicular to the length of the machine frame. To provide a laterallymovable mounting for the winding carrier 16, the shaft or axle 22 is connected in fixed relationship with arm 24 of a slidably mounted support bearing 26. The support bearing 26 is slidably mounted on a cylindrical slide rod 28, which is supported in fixed position by rod support brackets 30, 32 on the front inner wall of the housing 14.

To maintain frictional contact between the drive roller 62 and the thread-winding or windings on thread carrier 16, the movable winding carrier and support therefor is urged laterally toward the drive roller 62 by a helical compression spring 34 positioned about the rod 28 between the slidable support bearing 26 and the support bracket 30. A hor zontal, elongated slot 36 in the front wall of the housing 14, through which extends shaft 22 and arm 24, permits the winding carrier 16 and associated support parts to move back and forth.

The details of the slidable mounting of the support bearing 26 on slide rod 28 are shown in FIG. 3. The support bearing 26 has two or more ball bearing races 38 containing ball bearings 40. These ball bearings bear on the slide rod 28 to provide relatively free movement of the supporting bearing 26 on the slide rod 28.

To maintain the winding carrier 16 and its support parts in a horizontal position, means is provided to prevent the support bearing from rotating with respect to the slide rod 28. One means for achieving this result is the provision of a second arm 42 on the support bearing 26. On the lower end of the arm 42 is rotatably mounted a wheel 44, which, in turn, moves longitudinally through a U-shaped track 46. This arrangement prevents rotation of the support bearing 26 with respect to the slide rod 28.

The thread is wound on the winding carrier in circumferential layers by guiding the thread path back and forth across the carrier during the winding operation. In the embodiment illustrated, two separate thread windings, T and T are made on the thread carrier 16. This is done by providing

thread guide forks

48 and 50 immediately above the point of contact between the thread windings and the drive roller 62. The guide forks 43 and 56) are reciprocated to form thread windings T and T respectively, by reciprocable arm 52. The arm 52 is reciprocally mounted in a bearing 54 positioned inside the housing 14.

Reciprocal motion is imparted to the arm 52 through a pin 56 extending radially outwardly from arm 52. The pin 56 rides in a peripheral, endless groove 58 of cylinder 60the groove lying in a plane disposed angularly with respect to the axis of the cylinder 60. The cylinder 60 is driven by an electric motor composed of a fixed, inner stator and a rotatable outer rotor like that previously described. The motor (not shown) is positioned inside the cylinder 60 and the cylinder 60 is mounted for rotation with the rotor of this motor.

To facilitate power connection to the electric motor, there is provided on the rear face of the housing 14

electrical contacts

64, 66. These male contacts are connected with aligned, female contacts 67 in power supply lines 69 mounted along the frame of the machine. The contacts 64 are connected directly to the motor inside the cylinder 60, and the contacts 66 are connected with the rotor 18 and stator 20 of the motor inside the friction roller 62 by means of electrical conductors 77.

The supporting structure for the individual threadwinding units comprises horizontal frame plates or

bars

68, 70, which are spaced to provide horizontal tiers into which the thread-winding units are placed. At spaced intervals along each frame member 68, 7 t} are positioned vertical spacer plates 72. The

frame members

68, 70 with their spacer plates 72 form compartments into which are inserted the individual thread-winding units, whose insertion in correct alignment is made possible by the provision of side rollers 74 and bottom rollers 76 sounted in the side walls and bottom wall of the housing 14, respectively. If desired, other guiding parts such as slide runners, may be used in place of the

rollers

74 and 76.

It will be seen from the foregoing description that the invention provides closely nested, individual threadwinding units which maybe easily replaced or rearranged. Because each thread-winding unit has a thread-winding carrier which is movable laterally, the thread path between the godet roller 12 and the point of contact of the thread-winding T and/or T with the drive roller 62 remains constant. This permits closer horizontal spacing of the winding units, because it is not necessary to make allowances for angular displacement of the thread running between upper units to a lower thread-winding unit.

Besides space-saving advantages, the replacement for repair or servicing of an individual unit is a simple operation, which can be carried out in such a short period of time that the thread-spinning process does not have to be shut down. Also, the block-type construction of the individual units makes possible widely variable arrangements of the units in one or more rows and, in some cases, in a two-sided, back to back arrangement. In units wherein two or more windings are made on one carrier, the perpendicular disposition of the winding carrier to the length of the machine has more than doubled the capacity of a similar machine, wherein the winding carrier is disposed parallel with the length of the machine. V

The invention is hereby claimed as follows:

1. A thread-winding unit having self-contained driving means comprising a block-shaped housing with a thread carrier support extending outwardly therefrom, a friction drive roller having a fixed axis of rotation extending outwardly from said housing adjacent said carrier support in substantially parallel relationship therewith, a first electric motor contained in said unit and operatively connected to said roller for rotatably driving said roller, means on said housing mounting said carrier support for movement toward and away from said drive roller, means for urging said carrier support toward said drive roller, reciprocable thread-laying means adjacent said thread carrier support and extending from said housing substantially parallel with said thread carrier support, and a second electric motor mounted in said housing drivingly connected to said thread-laying means.

2. The thread-winding unit of claim 1 wherein said first electric motor has a central stator and an outer rotor positioned inside said roller.

3. A filament winding machine comprising a frame with frame members providing superposed horizontal tiers, means dividing each tier into substantially equal size compartments, a compact thread-winding unit in each compartment horizontally slidable into and out of said compartment, each unit having a block-shaped housing with rotatable thread-winding means extending outwardly from one side thereof, reciprocable thread-laying means adjacent said thread-winding means and extending from said side substantially parallel with the axis of rotation of said thread-winding means, each unit further having self-contained electric motor drive means for rotating said thread-winding means and for driving said reciprocable thread-laying means, and electric contacts for said electric motor drive means releasably engaged with cooperating power source electric contacts positioned in each compartment, whereby each unit of the block form assembly of said units on said frame is operable independently of the other units and one unit can be replaced with a similar unit quickly without shutting down the whole thread-winding machine or stopping the supply of filaments to the winding machine.

4. The machine of claim 3 wherein the block-shaped housing of each unit has guide means on each side thereof cooperating with said means dividing each of said rows into said compartments for proper positioning of each unit in a compartment.

5. A filament winding machine comprising a frame with frame members providing superposed horizontal tiers, means dividing each tier into substantially equal size compartments staggered with relation to the compartments of the next adjacent tier, a compact threadwinding unit in each compartment horizontally slidable into and out of said compartment, each unit having a block-shaped housing with a thread carrier support extending outwardly therefrom, a friction drive roller having a fixed axis of rotation extending outwardly from said housing adjacent said carrier support in substantially parallel relationship therewith, means on said housing mounting said carrier support for reciprocal movement toward and away from said drive roller, means for urging said carrier support toward said drive roller, reciprocable thread-laying means adjacent said thread-winding means and extending from said side substantially parallel with the axis of rotation of said thread-winding means, each unit further having self-contained electric motor drive means for rotating said friction drive roller and driving said reciprocable, thread-laying means and electric contacts for said electric motor drive means releasably engaged with cooperating power source electric contacts positioned in each compartment, whereby each unit out the block form assembly of said units on said frame is operable independently of the other units and one unit can be replaced quickly with a similar unit without shutting down the whole thread-winding machine or stopping the supply of filaments to the winding machine.

6 A filament winding machine comprising a frame with frame members providing superposed horizontal tiers, means dividing each tier into substantially equal size compartments staggered with relation to the cornpartments of the next adjacent tier, a compact thread- Winding unit in each compartment horizontally slidable into and out of said compartment, each unit comprising a block-shaped housing with a thread carrier support extending outwardly therefrom, a friction drive roller having a fixed axis of rotation extending outwardly from said housing adjacent said carrier support in substantially parallel relationship therewith, a first electric motor contained in said unit and operatively connected to said roller for rotatably driving said roller, means on said housing mounting said carrier support for movement toward and away from said drive roller, means for urging said carrier support toward said drive roller, reoiprocable thread-laying means adjacent said thread carrier support and extending from said housing substantially parallel with said thread carrier support, a second electric motor mounted in said housing drivingly connected to said thread-laying means, and electric contacts for said first electric motor and said second electric motor releasably engaged with cooperating power source electric cont-acts positioned in each compartment whereby each unit of the block form assembly of said units on said frame is operable independently of the other units and one unit can be replaced quickly with a similar unit without shutting down the whole thread-Winding machine or stopping the supply of filaments to the winding machine.

7. In a filament Winding machine, a winding carrier rotatably supported on a shaft, a power-driven, rotatable friction roller adjacent to and parallel with said winding. carrier, a slide rod at one end of said thread carrier and positioned substantially transversely to the axis of said carrier, a bearing non-rotatably and slidably mounted on said slide rod, said shaft being rigidly mounted on said bearing and supported thereby whereby said bearing, shaft and Winding carrier are reciprocable as a unit along said slide rod toward and away from said firiction roller, and bias means operable on said unit for urging said unit toward said friction roller.

References Cited in the file of this patent UNITED STATES PATENTS