RU2178021C1 - Linen fiber stapling and cleaning apparatus - Google Patents

Abstract

FIELD: textile industry. SUBSTANCE: apparatus has frame, fiber clamping unit made in the form of feeding shaft with key-type levers pressed to shaft, and defibrating devices made in the form of disks mounted on shaft at pitch depending on length of produced fiber. Disks are introduced into spaces between levers. Side blades are fixed circumferentially on disks in equally spaced relation. Side blades are inclined in direction of rotation of disks or may be made in the form of needle-type planks. Apparatus is used for producing stapled linen fiber from mixture of linen and wool, as well as with cotton and chemical fibers. Such construction improves quality of stapled fibers by intensified cleaning of fibers from contaminants. EFFECT: simplified construction and increased efficiency. 3 cl, 5 dwg _

Description

 The invention relates to the textile industry, in particular, to the field of producing mechanically stapled flax fiber and can be used in the manufacture of yarn from a mixture of flax with wool, as well as with cotton and with chemical fibers.

 A device for stapling is known, comprising a frame, a fiber clamping unit, and a fiber working member (RU 2048000 C1, 11/10/1995).

 The disadvantage of this device is that it does not achieve the required performance, which reduces the efficiency of obtaining with its use cotton or wool-like fibers of low cost.

 A device for stapling flax fiber in a tape is also known, in which the fiber is fed through the end surfaces to the radial beating planks of the scraper drums (RU 2124593 C1, 01/10/1999).

 The disadvantage of this device is that the fiber in the tape has a clamp only on one side (from the side of the feed rolls), which does not allow controlling the length of the staple fiber obtained, since the lower part of the feed fiber barrels interacts with the batten drums.

 The closest analogue is a device for stapling and cleaning flax fiber, containing a frame, a node for clamping the fiber and razvolenny working bodies in the form of disks mounted on the shaft with a step that depends on the length of the obtained fiber (RU 2125129 C1, 01/20/1999).

 The clamping unit consists of endless belts of the same type and a rotating shaft with two types of recesses alternating along its length, one of which has a cross-sectional shape similar to the sections of the pressure belts.

 This design of the clamping unit does not allow reliable fixation of the fibers at their break, which is associated with an unstable thickness of the fiber layer and the instability of the physicomechanical properties of the pressure belts, which leads to a large unevenness of fiber stapling along the length.

 In addition, in this device, incidental cleaning of staple fiber is not effective enough.

 The objective of the invention is to provide a device for stapling and cleaning flax fiber, providing a technical result, consisting in improving the quality of the obtained staple fiber by activating the cleaning of fiber from debris.

 This technical result in a device for stapling and cleaning flax fiber containing a frame, a node for clamping fibers and razvolnaya working bodies in the form of disks mounted on the shaft with a step depending on the length of the fiber, is achieved by the fact that on the disks razvolnitelny working bodies installed the blades with a certain pitch around the circumference of the disks, while the node for clamping the fiber is made in the form of a supply shaft with key-type levers pressed to it, and the disks of the working working bodies enter the gaps between the levers.

 The side blades have a tilt angle in the direction of rotation of the discs.

 Side blades are made in the form of needle bars.

 The invention is illustrated by drawings.

 In FIG. 1 shows a diagram of a cross section of the proposed device; in FIG. 2 is a section AA in FIG. 1; in FIG. 3 is a view B in FIG. 2; in FIG. 4 is a view B in FIG. 2; in FIG. 5 is a view D in FIG. 4.

 The device contains a frame 1 on which all the nodes of the machine are installed. The power supply unit contains a supply shaft 2, an inclined tray 3 and key levers 4. The key levers 4 are installed with a step equal to the pitch of the grooves of the supply shaft, on a common supporting axis 5 mounted on the frame 1.

 One shoulder of the key lever has a working cylindrical surface, which is pressed against the bedside tables of the supply shaft 10. To the opposite shoulders of the levers are mounted springs 6, which press the levers to the bedside tables of the supply shaft. The pressing force of the levers is regulated by screws 7, the change of position of which leads to a change in the magnitude of the preliminary deformation of the spring 6. The parameters of the spring 6 can be selected so that the passage of the fiber layer between the feed shaft and the levers will not dramatically change the pressure on the fiber, while providing the necessary pressure fiber clamp.

 The feed shaft has annular grooves 11, the pitch between which is determined by the length of the staple fiber. On the bedside tables 10 of the feed shaft, riffles are cut, which ensure the capture of fiber from the feed tray and its introduction into the staple zone.

 The grooves of the supply shaft include the staple working bodies 8, made in the form of disks with chopped teeth. The disks are mounted on a common shaft 9 with a step equal to the pitch of the grooves of the supply shaft. The frequency of rotation of the shaft with the working bodies is greater than the frequency of rotation of the feed shaft. Blades 12 are mounted on the disks 8, which can have a tilt angle in the direction of rotation of the disk (Fig. 3). The blades 12 on the disks 8 are installed alternating on both sides of the disks (Fig. 4) with a certain circumferential pitch. The blades 12 can be made in the form of needle bars 15.

 The device operates as follows. The fiber 14 in the form of handfuls or in the form of a layer after the grinding machine is fed to the inclined tray 3, under its own weight it enters the contact zone of the supply shaft 2 and the key levers 4, where it is clamped between the key levers and the corrugated bedside tables 10 of the supply shaft 2. Rotating supply shaft 2 moves fiber clamped in several places along an arc. The fiber is introduced into the range of the staple working bodies 8, which enter the grooves 11 between the nightstands of the supply shaft 2. The fiber sections clamped on both sides are split by the working bodies.

 The split fiber remains sandwiched between the feed shaft (shaft side table 10) and levers 4. Grooves 11 in size are made in such a ratio with the width of the cabinets 10 that the main part of the length of the stapled fibers will hang inside the grooves 11. Rotating blades 12 mounted on the disks 8, they will hang over the hanging part of the fibers alternately: first on the right, then on the left (Fig. 3), knocking out litter, bonfire and other impurities from the fiber along the entire contact arc (a-c) of the key levers 4 with the nightstand 10 of the supply shaft 2. Since the speed shaft rotation 2 much less than the speed of rotation of the shaft 9, the blades 12 repeatedly act on the fiber before it goes through the chamber 13 into the collection hopper. To intensify the excretion of cheese, the side blades can be made in the form of needle strips 15. In this case, the processes of stapling, cleaning and combing flax fiber are combined.

 As a result of the described, the quality of the staple fiber is increased, its clogging is reduced and the fiber uniformity along the length is increased.

Claims (3)

 1. A device for stapling and cleaning flax fiber, containing a frame, a node for clamping fiber, fiber working bodies in the form of disks mounted on a shaft with a step depending on the length of the fiber, characterized in that lateral blades are installed on the disks of fiber working bodies with a certain a step around the circumference of the disks, while the node for clamping the fiber is made in the form of a supply shaft with key-type levers pressed to it, and disks of the working working bodies enter the gaps between the levers.  2. The device according to p. 1, characterized in that the side blades have an angle of inclination in the direction of rotation of the disks.  3. The device according to claim 1, characterized in that the side blades are made in the form of needle bars.

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