SU1284924A1 - Appliance for thread tightening on textile machine - Google Patents

Abstract

The invention improves the reliability of the device and improves the quality of the formation of packages on warping machines in textile industry by automatically controlling the total tension of the thread and improving its passage conditions. This is achieved by passing the thread through the trap funnel, the center of the outlet orifice is located below the level of the tops of the conical bases of the rods by the radius of this hole through the grooves in the conical bases and the grooves of the rods under the conical washers due to varying friction forces. With a minimum tension of the thread, the greatest amount of force of the thread against the surface of the cone-shaped bases of the rods is achieved. In the case of an increase in tension, the strength of the friction is reduced by raising the thread of conical washers, 1 s.p. f-ly, 5 ill. 9

Description

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1} The creature belongs to the textile industry and can be used on warping machines.

The purpose of the invention is to increase reliability.

FIG. 1 shows schematically a device, a shear, a view, a section; in fig. 2 - the same, top view (without washers) in FIG. 3 shows a section A-A in FIG. in fig. 4 shows a variation of BB in FIG. FIG. 5, view B in FIG. one.

The fixture contains a receiving eye, made tapering in the form of a catching funnel 1 with a groove 2 for threading, vertical rods 3 and 4 with expanding cone-shaped bases 5 with a cone angle equal to, for example 90, with conical washers 6 mounted on them, o (i rod 7 and fastener element 8 united by a common base 9. Horizontal grooves 10 serve to thread the yarn into vertical axial grooves 11 of the rods 3 and 4 through which the thread passes. The bases 5 have sector notches 12 in the movement sections of the yarn The rims of its exit, In the base 9, the holes 13 are made in the direction of movement of the thread to remove litter and down. The rods 3 and 4 have limiting rings 14 at the ends that prevent the washers from escaping 6. The rod 4 is additionally equipped with a cargo washer 15 that allows adjusting the amount of tension yarn depending on the linear density of the yarn being reeled.

 The installation of two vertical rods improves the alignment of the thread tension. The presence of vertical grooves in the vertical rods prevents the threads from being pulled out from under the washer as it moves. Dredging in Koiu20

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the edges of the funnel, regardless of the diameter of the reel, which helps prevent twisting on the thread between the tensioner and the reel. In addition, the implementation of a slot groove in the funnel on the side of the inlet in the left upper part improves the service conditions of the device, and displacing the slot by 10-15 from the vertical tangential to the generator of the outlet of the funnel prevents the thread from running out.

The device is refilled as follows.

The thread is fed into the groove 2 of the funnel 1, the conical washers 5 are lifted and the thread is guided through the horizontal grooves 10 into the vertical grooves 11, after which the washers 6 are lowered. Next, the thread goes around the guide rod, which serves to ensure equal conditions of thread passage on the right and left side of the bobbin, touches the friction surface of the fastening element 8 and goes, for example, to the warping machine.

In the process of operation with the minimum thread tension, conical washers 6 lie on the surface of conical bases 5. In this position, the thread experiences friction on their lower edges (corners Cf, and tp) and rounded vertices of the bases 5 (angle about, having a maximum value). In this case, the greatest strength of the thread is achieved on the rounded surface of the bases 5. In the case of an increase in tension, the conical washers 6 raise the thread, and the angles of coverage Cf and the lower edges of the washers, as well as the angle about, decrease. A decrease in these angles leads to a significant decrease in

Corresponding bases of rods, made of friction according to the movement of the nitp, Euler. Thus, by adapting the south to exclude the dynamic retractable sieves of the fast-running thread, the resulting automatically adjusts the value when it is clamped between the washer and the tapered surface of the rods. Execution of the receiving eye in the form of a catching funnel, the center of the outlet of which is located below the level of the tops of the cone-shaped bases

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cy of the same nat thread.

The use of the proposed device allows improving the quality of the formed packages and increasing the reliability of operation.

rods on the value of the radius of this hole, allows to reduce the pressure force of the balloon, its thread on the friction surface, and also to eliminate the sharp bending angles of the thread about

Claims (1)

1. A device for tensioning a thread on a textile machine, containing the edges of the funnel, regardless of the diameter of the reel, which helps prevent twisting on the thread between the tensioner and the reel. In addition, the implementation in the funnel of the groove for threading from the side of the inlet in the left upper part of the fillet helps to improve the service conditions of the device, and displacing the slot by 10-15 from the vertical in contact. d 0 five 0 funnel to the outlet of the funnel prevents the thread from going out during operation. The device is refilled as follows. The thread is fed into the groove 2 of the funnel 1, the conical washers 5 are lifted and the thread is guided through the horizontal grooves 10 into the vertical grooves 11, after which the washers 6 are lowered. Next, the thread goes around the guide rod, which serves to ensure equal conditions for the thread to pass on the right and left sides of the bobbin, touches the friction surface of the fastening element 8 and goes, for example, to the warping machine. In the process of operation with the minimum thread tension, conical washers 6 lie on the surface of conical bases 5. In this position, the thread experiences friction on their lower edges (corners Cf, and tp) and rounded tops of the bases 5 (angle about, having a maximum value). In this case, the greatest strength of the thread is achieved on the rounded surface of the bases 5. In the case of an increase in tension, the conical washers 6 raise the thread, and the angles of coverage Cf and the lower edges of the washers, as well as the angle about, decrease. A decrease in these angles leads to a significant decrease in   training according to Euler's law. Thus, the adaptable friction sieve automatically adjusts the amount cy of the same nat thread. The use of the proposed device allows improving the quality of the formed packages and increasing the reliability of operation. Invention Formula 1. A device for tensioning a thread on a textile machine, containing Fi & 2 / 1- / 1 w Fig j didb