DE2134917A1 - Guide device for unwinding thread from a package - Google Patents

Description

»Guide device for unwinding thread ^{6 lwtfJ |} f from a package "

The present invention relates to a guide device for unwinding thread from an in package used on a loom or spinning machine. '

The aim of the present invention is to provide a new type of guide for yarn that can move the yarn without it to tangle from conical or cylindrical yarn packages. In the case of cylindrical yarn packages, a uniform, low tension exerted on the j thread during unwinding, with sudden increases in tension and ^ so that tearing of the thread can be avoided.

Another object of the invention is to provide a collapsible circular guide over which the Thread runs during unwinding and which gradually collapses as the diameter of the package decreases, so that with a diameter of the guide that is slightly larger than the thread package, the difference between the diameter of the Leadership and that. of the package essentially constant remain.

The objects of the invention extending through a plurality of radially, outwardly curved fingers realized constructed guide which is essential in the borrowed \ circular and can be folded by turning the fingers.

The invention also relates to the particular arrangement of the fingers and the actuating devices used for them.

FIG. 1 is a side view of the guide device according to the invention for unwinding thread.

Figure 2 is an enlarged cross-section taken along the line labeled 2-2 in Figure 1.

Figure 3 is a perspective view of one

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Pingers and the axis assigned to it.

Figure 4 is a side view similar to Figure 1, but shows the parts in a changed position.

Figure 5 is an enlarged side view taken along the line labeled 5-5 in Figure 4.

Figure 6 is a partial cross-section along the line designated 6-6 in Figure 2.

FIG. 7 is a cross-section along that in FIG. 6 line marked 7-7.

Finally, FIG. 8 is a partial cross-section of the folded guide along that of FIG. 6 at 8-8 designated line. -

The invention includes a device for holding a package 10, for example via the weft regulator

11 of a loom without a shuttle is unwound. The string

12 goes from the package through a thread eye coaxial with it

13 and is then in a known manner to the shot regulator 11 connected.

According to the invention, the novel guide device 14 is arranged between the yarn package 10 and the thread eye 13 and independently guides the thread 12 so that there is no fanning or overhanging of thread on the package whether it is conical or cylindrical. Tangling or tangling is therefore less likely and at the same time Because of the possibility of using cylindrical packages, more thread can be applied to the package. Particularly in the case of cylindrical yarn bodies, the guidance results in a low, even tensile stress while avoiding strong ones Tensile stress peaks. The guide is circular and collapsible, so that its diameter gradually decreases as the thread is unwound. In the beginning is the diameter the guide is larger than the original diameter of the thread

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body, so that, as shown in Figure 1, the thread running through the guide an angle α of about 3-5 with includes the package. The angle changes slightly as the thread passes between the ends of the package runs back and forth. As the thread is unwound, the guide is gradually folded up so that the angle & is essentially remains unchanged (see Figures 1 and 4).

The guide device 14 consists of a set of fingers 15 which are attached at a distance from one another and extend radially outward from a holder 16 M coaxial with the yarn package 10. The inner end sections 17 (Figure 3) are rotatably mounted on the holder. All outer ends 18 are bent in the same direction and thus result in the circular guide 14 shown in FIG. while clockwise rotation results in a corresponding reduction in diameter. The initial diameter is set manually; During operation, the fingers are then turned in at a speed which is adapted to the speed of unwinding from the package 10. *

The winding body 19 (Figure 6) is about a with || The same concentric sleeve 20 is pushed and sits firmly on flange 21 on sleeve 20. Holder 16 for the fingers is mounted at the front end of the sleeve 20 and comprises a circular one Disc 22 with an axial flange 23, which is fitted with a sleeve 23a that is fitted onto the end of the winding body 19 is surrounded. A cam 24 protruding into the sleeve 20 is screwed to the same with a screw 25. A second, circular, two-part disk 26 forms part of the holder 16 and is supported by disk 22 by an axial,

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with the disk 26 a piece forming flange 27 is deposited, which in turn protrudes into a recess 28 in disk 22. Screws 29 connect the two washers.

The axes 30 used in bearings 3.1 for the fingers are at equal intervals on the circumference of the holder 16 15 attached. As shown in Figures 3 and 8, the inner end portion 17 of each finger is straight and extending radially from the corresponding axis 30 * to which it is welded. The curved end portion 18 is located in a Plane that is perpendicular to the plane of the inner end section. ■

In order to rotate the fingers 15 together, there is a gearwheel which meshes with a gearwheel 33 which is attached to the shaft 34 32 wedged 30 on each axis. Gear 33 is within the Sleeve 20 on bearings 35 and on another bearing 30 in a tubular extension 37 of the disc 26 mounted. The rear end of the shaft is tapered with a Termination 38 provided, which engages in clutch 39 and is driven by her. To operate the driving part 40 the clutch, a constant speed motor 41 is mounted in the housing 42, which by means of an angle is attached to a rail 43 on the loom frame (Figure 1). A pinion 45 mounted on the output shaft 46 of the motor (Figures 6 and 7) engages in a spur gear 47 which is on the Shaft 48 mounted in housing 42 is fixed. The guide jaw 50 rests on an eccentric 49 attached to the shaft 48, which is carried by an arm 51 of an angle lever-'52, which in turn is rotatably seated on the shaft 53. One between the housing and the other arm 55 of the angle lever 52 effective Spring 54 presses the guide jaw against the eccentric. The end of the other arm 55 is provided with teeth 56, one with "the gear 57 seated on axis 58 is in normal engagement

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Form gear part. Shaft 58 is mounted in bushing 59 in housing 42 and rotates the driving part 40 of clutch 39 via a slip clutch 60. Motor 41 thus rotates fingers 15 via gears 45 and 47, eccentric 49 and guide jaw 50, gears 56 and 57, the clutches 60 and 39 and the gears 32 and 33, resulting in an overall reduction. A knob 61 on the outside of the housing 42 is mounted on shaft 48 so that the fingers may be manually rotated, and the guide device are ^ 14 is adjusted to the desired initial diameter may%. A slip clutch 61a on shaft 48 enables the eccentric 49 to be rotated by the knob 61 without causing the drive mechanism itself to rotate.

In order to enable thread packages 10 to be inserted, the housing is clamped to sleeve 20 in a detachable manner. Is to Approach 62 (FIG. 6) is attached to shaft 63 with a screw 64 which, according to FIG. 1, protrudes through housing 42 and engages its outer end is provided with a handle 65 for manually rotating the attachment. If the approach doesn't work with the sleeve 20 .connected, the package 10, the sleeve 20, the holder 16, the guide device 14 and the Shaft 34 can be removed from the housing, the driven J bene part 38 of the coupling 39 simply slides out of the driving part 40. The bobbin 19 of an empty package is then withdrawn from the sleeve 23a and a new package is made by inserting the sleeve into one end of the The winding body 19 is used and the other end is pressed onto the flange 21, the coupling 39 being re-engaged.

When a new bobbin of thread is inserted and lug 62 is connected to sleeve 20, knob 61 is turned over the fingers 15 to pivot outwards until the Durohmesser of the Guide device 14 the desired angle a between the

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Thread and the package results, (Figures 1 and 2). When actuated of the shot regulator 11, the engine 14 is started. The weft controller pulls the thread .12 off the package and through the guide, the thread running clockwise around the guide during unwinding in the representation selected in FIG. The motor simultaneously drives the gears 32 so that the fingers 15 are gradually pivoted inwards and how shown in Figures 4 and 5, the diameter of the guide device corresponding to the diameter of the package Eccentric 49 is designed in such a way that the speed of the folding of the guide fingers increased by the increased speed of diameter reduction of the package to take into account and to keep the angle a constant.

With this arrangement, the guide 14 can be adjusted so that the thread 12 and the package 10 one Form an angle that minimizes the risk of tangling on the package. The gradual collapse of the Guide keeps this angle constant during unwinding. The risk of tangling is low even with cylindrical yarn packages, so that the use of large yarn packages is possible and they rarely need to be replaced. The guide device keeps a low, uniform Tensile stress upright and thus reduces the risk of a thread breaking.

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Claims (8)

PATENTAHS P R RULES Guide device for unwinding thread from a thread package (10) with a certain diameter, with a holder for the thread package, characterized by a circular, concentric, collapsible guide (H) attached to one end of the thread package (10) over the the thread runs when unwinding from the package (10), wherein. the initial diameter of the guide (14) is greater than the diameter of the package and the thread running over the guide forms a certain angle (a) with the package M , and by means of devices for gradually reducing the diameter of the guide by the angle (a) to keep constant between the thread and the package. 2. Guide device according to claim 1, characterized in that the guide from extending in the radial direction Fingers (15) and a holder (16) is that the inner end portions (17) of the fingers rotatably mounted on the holder (16) are that the outer end portions (18) are bent in a predetermined direction, and that the devices to reduce the diameter of the guide (H) gradually swivel your fingers inwards. 3 · Guide device according to claim 1, characterized - | by means of devices around the guide (H) by hand on the other i to set the initial diameter. 4. Guide device according to claim 2, characterized in that the holder (16) at one end of the package (10) is attached concentrically to it; that the curved outer ends (18) of the fingers (15) in their entirety a guide (H) with a circular outer circumference and one that collapses when the fingers (15) are rotated in one direction and in the opposite direction when they are rotated Direction of increasing diameter; and that the 2134S17 Devices for reducing the diameter of the guide (14) gradually screw in the fingers (15) together and thus fold up the guide. 5. Guide device according to claim 2, characterized by devices (button 61) for manually screwing the Finger to set the guide (H) to an initial diameter. 6. Guide device according to claim 2, characterized by equidistantly around the shaft of the holder (16) mounted axes (30), of which the fingers (15) are radial extend outwards and to which they are rotatably attached with their inner end portions (17). 7 »Guide device according to claim 6, characterized in that that the fingers (15); are attached to the axles (30), and that a second, to the shaft (34) of the holder (16) concentric shaft (37) »a set of gears (32), each of which has an axis associated with a finger (15) (30) is attached, a fixed to the second shaft, with the gears (32) attached to the axes (30) of the fingers (15) in singular engagement, and a Drive for rotation (motor 41) of the second shaft (34) for Pivoting the fingers are provided. 8. Guide device according to claim 2, characterized by an eccentric (49) for the gradual adjustment of the Finger (15), which increases the speed of the twisting of the fingers when the package (10) is unwound. 2O9013 / |> f77