CS273091B1 - Spindle for winding device - Google Patents

Abstract

The spindle of a winder for winding of continuous synthetic or natural fibres, threads, strips and strings is characterized by simple arrangement, and extremely firm clamping of a tube. The basic body of the spindle is equipped on the inner end with a conic bearing surface and, on the outer end, with a clamping mechanism, which consists of autonomous clamping jaws, which are wrapped on the perimeter by a draw spring and, from the left side, bear on the casing with a projection, which is secured by a spring, and, from the right side, on the casing that is mounted on the end clamping element, which secures its position by means of a screw and pin.<IMAGE>

Description

The object of the invention is a spindle of a winding device for winding natural and chemical fibers, threads, tapes and twines,

For a quick and easy replacement of the sleeve onto which the endless material is wound on the spindle of the winding device, it is necessary to solve the clamping of the sleeve so that its fastening on the spindle is as firm as possible and allows its fast replacement.

The clamping of the sleeves on the spindles of the winch devices is solved in various ways. The tubes can be clamped by means of clamping strips mounted in clamping discs which are spring-loaded by compression springs. This method requires high precision manufacturing, which increases the cost of the product. There are known solutions according to which the clamping of the product on the spindle sleeve is provided by the yard rows of rollers extending to the outer periphery of the spindle at both ends of the sleeve. The fact that two rows of rollers are required for clamping increases the cost of production and, since the clamping dimension is not adjustable, only allows clamping of one dimension of the sleeve. A further disadvantage is that it does not guarantee centric clamping of the sleeve, which results in poor construction of the winding and low spindle life.

It can be stated that there are a number of known and varied solutions for clamping tubes for drill chucks and winding devices, which generally depend on the overall concept of the machine and the resulting advantages or disadvantages.

One example of how the sleeve can be clamped to the spindle of the winding device so as to be as rigid and replaceable as possible at a low cost is provided in accordance with the present invention in which the clamping device comprises separate clamping jaws for internal contact with a sleeve, wrapped on the outer circumference by a tension spring, and abutting the left side on the housing with the tongue-secured projection and on the right side on the housing mounted on the end element, securing its position by means of a screw and a pin. The opening and clenching of the separate clamping jaws is controlled by a short rotation of the end clamping element, designed so that its path of rotation is at most one turn, thereby limiting its ability to operate only within the clamping region of the sleeve, but . This option is particularly welcome for paper or plastic gradients that gradually wear out and thereby lose flood clamping dimensions.

The attached drawing shows a diagram of an exemplary embodiment of a spindle for winding the device in a longitudinal section.

The spindle of the winding device pozoatóya of the base body 7 provided with a conical abutment surface 2 at the inner end. and at the outer end with a clamping device formed by separate clamping jaws for internal contact with the sleeve, which on the outer circumference are wrapped by a tension spring 4 and abut on the left side on the sleeve 8 with a protrusion 12 secured by a tongue 11. and from the right side to the sleeve 6 mounted on the end clamping element 8 to fix its position by means of a screw 9 and a pin 10.

Separate clamping jaws 3 from the left side of the sleeve 5, which is provided with a protrusion 12 and a tongue 5, which at the same time secures them against rotation. The separate clamping jaws 3 press the sleeve 6j from the right side e.g. The tapered disc, actuated by the end element Jh The individual clamping jaws 3 are held in their bearings by a tension spring which surrounds them all the way around. in the end clamping element 8. The entire clamping process of the sleeve is carried out by sliding the sleeve onto the spindle of the winding device up to the support surface and fastening the end clamping body 8 by a quarter of a turn.

When the winding is finished, the bobbin is released by turning the end clamping element 8 to the opposite side and slid off the spindle. Direction of rotation of the end clamping element, 8. it must be opposite to the winding direction when clamping.

CS 273 090 Bl

The spindle of the winding device according to the invention finds application mainly in the field of production of continuous synthetic and natural fibers. It is distinguished by its simplicity of clamping, which is centered on only one end of the spindle, thereby greatly reducing production costs. It is especially suitable for group deployment in jet lines where it is used for mass removal of fibers.

Claims (1)

A spindle of a winding device in which the base body is provided with a tapered abutment surface at the inner end and a clamping device at the outer end comprising separate clamping jaws, characterized in that the separate clamping jaws (3) for internal contact with the sleeve are spring (7) and abutting on the left side on the housing (4) with the projection (12) secured with the tongue (5) and on the right side on the housing (6) mounted on the end clamping element (8) securing its position by screw (9) and how many (10).