CS228288B1 - Combing bar for clearing and tearing up textile materials,particularly cotton type materials on a cleaning machine - Google Patents

Abstract

The invention relates to a device for the cleaning and opening of especially cotton-like fibre materials on cleaning installations, which comprises a rotating opening element and a combing strip assigned to this. According to the invention, the combing strip (3), assigned to the working surface of the opening element (10) in the region between feed rollers (2) and grid bars (12), is equipped with rows (9) of saw-like teeth (5). The tips (6) of the teeth (5) lie on an imaginary concave surface (16), and their height decreases in the direction of run of the fibre material. The rows (9) of saw-like teeth (5) form an acute angle ( alpha ) with the direction of run (14) of the fibre material. <IMAGE>

Description

The invention relates to a combing bar for cleaning toxtile foodstuffs, the names of a cotton heater for cleaning machines which are equipped with a romvolnovaoim roller, a waiting bar, and cleans the oad. grates. The essence of the fired is a coil formed as a single body 4, on whose surface protrudes rows 9 of profile nubs with curved bolts 6 ₉ whose height 00 in the direction of passage of the material to be conveyed 1 is reduced, mhy 5 forming rows 2 inclined so that In the material to be treated 1, they form a dh.

* It is also a feature that in the namespace 15 moni rows 5 Jo to a depth of 0.5 to 1 mm from the heel of 7 nubs £, a dump post £ is created for dirt removal

Break the curvature of the faces of 6 nubs 5 of the scaffolding bar Jo Jo 1.2 to 1. 8 * times larger than the radius of the peeling roller 10, with 00a of the screed bar 3 centered by the center of the rhombus 10 · Use δ o suction bar jST * materials, but also for syntotic materials for sewage systems in machines, such as ronvolnovaoí, čechraoí and other machines that жргаoevej regenerated materials ·

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The invention relates to a combing bar for cleaning textile materials, in particular cotton fabrics, in cleaning machines which are provided with a disintegrating roller, a combing bar and cleaning grates.

A known dirt separator for milling machines, grated immediately in front of a roller and provided with a knife. which is located at an adjustable distance from the periphery of the main cylinder, is turned against its direction of rotation and lies with. do not eat with an adjustable plate mounted in a small radio. distance. from the main cylinder, further provided with a heel. The left-hand side of this solution is that the flow of the filaments of the mahai machine is apparently disrupted and the parallelism of the filaments is not nearly as good , as with the MKAAI machine bos dirt separators ·

The previously known combing and scraping machines work on the principle of separating hard dirt from the raw material - by centrifugal force and shock · These algae are caused by the impact of fibrous fluff. carried by the drum working member perpendicular to the direction of the material passing through the set working edge of the grate · Heavy loose debris falls out through the gaps between the rotary beams. under the machine together with fibers, which are connected by impurities, or tufts of fibers, which are pushed through the gaps of the cuttings ·

Working drums of agitating machines They are provided with either noses, pins, needles, or sawdust cover, the scraping machines are equipped with Kireehneroi,. varnished or combined wing ·

228 288. . '. ·

The cleaning and disintegration effect of these devices is not at the desired level and is accompanied by a large discharge of good fibers into the waste · Advanced spinning methods, ever-deteriorating cotton quality, machine harvesting, harsh ginning, herbicide use and the like and quality preparation of the raw material before. - self-spinning.

On the basis of this, a working drum with a full metal coating is being used in the purification aubergines. The apparatus operates with one or even bouncing knives, so that the cleaning is improved, but the bouncing blades are also discharged into the waste by a portion of processable fibers. Behind the reflectors. - the knives are grate or guide plate.

The last type of crimping machines uses a bottom feed roller - coated with a metal coating to improve the fiber holding between the feed rollers at the time the raw material is plucked. This embodiment improves cleaning results in part, but does not fully eliminate the defects.

Segments that are constructed on the principle of coated strips are also used in mowing machines.

These segments are intended to pre-feed the raw material before entering the tambour - or to increase the weaving surface of the movable lids by adding solid segments. - Segments here - work with bouncing knives, which large rolls of processable fibers into waste.

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There is also known a device which constitutes a hearing device whose work surface is provided with a pyramid whose height and height is increased. Pitch spacing ee. in snow - progress of purified naorrhage gradually decreases *

The disadvantage of this device is that - the effect of cleaning will probably be lower, it can be assumed frequent locking of the needles, especially in the mother - execution * The force acting on the needles of the skin cause otaris or other - damage and shade and fiber damage. Damage to the skin can also occur through the penetration of needles into tightly held strands of fiber, where there are - shocks - which can also cause - fiber breakage *

It is an object of the present invention, which is based on tons that the combing bar is formed by means of the prior art devices, that is to say, increasing the disintegration and cleaning effect of machines and cleaning kits, while reducing (bleached) spinable fibers in the waste stream. as a solid body on whose surface protruding rows of profiled teeth with curved faces and whose height is changed in the snow of the processed material passage, while the teeth form rows inclined so that - from the axis of the processed material passage they form an angle of 7 * to - 15 ° *

A preferred solution is that in the niece of the knife the teeth are aligned. - yo - to - depth - 0.5 to 1 -nn from the base of the teeth - a groove for the removal of dirt.

228 288 It is also advantageous that the radius of curvature of the tooth faces of the tearing lids is 1.2 to 1.48 times greater than the radius of the opening roller, with the axis of the finishing bar not passing through the center of the opening roller.

BRIEF DESCRIPTION OF THE DRAWINGS Chairs that do not naturally exhaust all applicable variants of the combing bar design ·

Fig. 1 shows schematically a combing bar with tooth profiles for higher performance ·

Fig. 2 shows schematically a combing bar with tooth profiles for lower outputs.

Fig. 3 schematically shows a view of the combing bar from above.

Fig. 4 shows a part of the cleaning device of the screed machine.

Fig. 9 shows schematically the feeding of material of the cleaning device.

FIG. 6 shows the zone between the feed device and the clearing bar

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FIG. 7 shows the opening a. Cleaning the material between the barrel drum and the combing bar.

Figure 8 shows the separation of waste from good material

Fig. 9 shows a guide. flakes. for pneumatic sensing of fibers and dedusting.

The present material 1 is guided to the feed rollers 2 provided close to the coating of the opening roller 10. Under the feeding rollers 2, a screed 11 is also attached to the surface of the opening roller. a continuous rows 2 of profile teeth 2, whose faces 6 are curved so that the radius of the face 6 of the teeth 2 of the picking bar J is 1.2 to 1.48 times greater than the radius of the opening roller 10 and the seating axis of the waiting bar 2 the opening roll. As a result, the distance between the teeth of the opening roller 10 and the waiting bar 2 at the inlet of the material into the bar is greater than at the outlet. In this case, the height of the teeth 2 tc of the direction of travel of the fiber flakes 11 is changed; The tooth sets 2 are arranged such that they are at an angle 70 to 15 ° from the material passage axis 14. The crosspiece 2 is provided with a groove 8 in the spacing between the individual rows of eubes 8 for the removal of hard dirt so that the groove is formed to a depth of 0.5 to + 1 mm from the base X of the tooth. By the combing bar 2 are arranged%

228 288 roštnie · 12 for separating dirt 13 and dust. Put them at ^{the beam} SB opener 10 installed and not illustrated for the invention is already irrelevant sensing device and a pneumatic discharge filaments for further processing · combing rail 2 is attached to the side machines, moonnotí set a gap between the carding strip 2 and the surface of the opener roller on the 10th

The device works as follows:

The present matteial 1 is fed into the machine by feed rollers 2 which are held firmly. - The release roller coating 10 tears off the present matteial 1. This flakes 11 pierce the space between the feed rollers 2 and the combing roll 2, where it is possible to stretch and take up more volume. Here too, the present material 1 is accelerated to the peripheral speed of the opening roller 10.

After passing through this zone, the flake 11 enters the working area of the combing bar J. The flakes 11 are carried here by the free space between the opening roller 10 and the combing bar J. When entering the area of the combing bar 2 the flakes 11 gradually strike the entrance edges of the teeth 2. The fact that the flakes 11 are more or less intensely inserted into the marginal teeth 2 with their loose parts by the greater the centrifugal force, the greater their morphology. This virtually leads to the first sorting of the flakes 11, which on the one hand vibrate. towards the center of the opening roller 10,

228 288 to the side to gently penetrate the teeth 2 o flakes 11 - and to divide them · Technological air is sucked into this space, which prevents falling out of fibers and also impurities. By inclining the toothline axes at a suitable angle to the axis 14 of the passage of the present material 1, the length of the passage of the material 1 through the combing bar is prolonged - which causes friction elongation by friction 11. by the inlet part of the front teeth 2, the teeth of the disintegrating roller are retained and gradually drawn in, which do not carry oatecial or only small flakes 11. The process of cleaning and disintegrating the flakes 11 between teeth 2 is favorably influenced. for cleaning flakes 11 from both sides and bottom side ·

The interaction of the coating of the opening roller 10 and the teeth 2 of the combing strip χ is fully equal to that of the flakes 11.

The gradually decreasing height of the teeth and the decreasing depth of the ducts make it protrude in the direction of the axis of the opening roll and thus engage the coating of the roll. At the same time, the fitting of the working members of the opening roller to the combing bar is approaching, so that even the flakes 11 of the material 1 are kept in contact with the working parts of the roller and the bar.

The loose hard dirt 13 is guided by the lower surfaces of the dirt grooves 8. The groove 8 is formed in the gap 15 between the rows 2 of the teeth, from the heel of χ zUbu 2 to a depth of 0.5 - 1 mm,

228 288 so that the impurities are not recovered back into the fiber flakes 11. The impurities 13 are gradually wiped to the end of the combing bar 2, where they fall out of the free space in front of the slats 12 under the machine. The cleaned and loose material 1 is carried further into the space where the grates 12 are provided, which serve as a guide for the fibers to prevent them from falling out. The bulk of it

the loose fibers do not fall out through the opening in the space between the combing bar J and the grate 12, because they are lifted by buoyancy of air and sucked again between the grate. Further, the fibers are discharged through a pneumatic channel for further processing.

The overall structure of the bar 2, which is formed as a monolithic body 4, on its surface protrudes rows 9 of profile teeth 6 with curved faces 6 whose height decreases in the direction of passage of the material to be processed. the passage of the material an angle of 7 1 ^{0-15 0} and wherein the radius of curvature of the end faces 6 of the teeth 2 combing strip J is 1.2 to 1.48 times greater than the radius of the opener roller 10, the axis does not pass through the combing strips J through the center of the opener roller 10, it allows complete and perfect pulping of the flakes 11 and their cleaning, while avoiding clogging of the combing bar 2 with fibers or coil and can be characterized as self-cleaning.

The design of the bar 11 and its seating * allow the flakes 11, which are gripped by the opening surface of the cylinder 10, to provide a perfect fluff in the free space in front of the bar

228 288 the flakes 11 are retained by the teeth a at the edge of the bar Д and ensure that only such a flake is drawn into the bar that allows perfect gradual loosening.

The flakes 11 are braked by the teeth 6, on which they are pressed by a centrifugal force, which is proportional to the weight, thereby causing elongation and weakening. The inclined rows of the teeth 8 expand the flakes 11 sideways. The center of gravity of the flakes 11 is pushed into the gaps 15 between the teeth and the flakes are drawn between the teeth of the same row and cleaned between the leading and opposite edges of the tooth. in the direction of the material flow, it perfectly separates the impurities 13 and carries them under the machine, while the unified cleaned fibers are transported outside the machine for further processing. The aerodynamic forces are induced by the reversing rollers 10 and the material transport suction fan. · These forces contribute to preventing the processable fibers from escaping between the hard impurities 13 which are the skins, capsule parts and the like falling under the machine, while short fibers and small impurities are airborne and deposited on the filter

Cleaning strip 2 j · designed for - high performance for use in cleaning kits. It does not help push away any possible. deficiencies of insufficient clearance rate of these kits · Enables perfect - opening of the flake for easier falling out of milk and milk before the mtrtrial enters the machine * The cleaning bar 2 does not allow the clumps to leave the working position unless the flake 11 is in the desired size. There is a large amount of impurities behind the strip before the fiber enters between the grates or another cleaning strip.

In the case of synthetic paints which they contain - loose whites, they ensure perfect rosification and prevent the towing of these tows by the grate system or the rebound knife into the waste.

This determines the use of 2-E combing bars for natural materials, but also for synthetic staple material in sewage kits for machines such as disintegrating machines, fluffing machines and other machines that process reclaimed materials (vigo spinning mills).

Claims (3)

BEFORE THE INVENTION 228 288 1. A cleaning bar for cleaning and disintegrating textile materials, in particular of cotton-type character in cleaning kits, which are provided with a feeding device, a disintegrating roller and grates for the removal of dirt and dust, characterized in that it is formed as a single body. (4) on whose surface protruding rows (9) - profiled teeth (5) with curved faces (6), whose height decreases in the direction of passage of the processed material (1), the teeth (5) forming rows (9) inclined so that the eds (14) of the passage of the processed material (1) form an angle of 7 to 15 2 «The screed bar of point 1, marked! The method according to claim 1, characterized in that it is in the gap (19) between the rows of teeth (5) to a depth of 0.5 to 1 mm 'from the heel (7). - (9) groove (8) for dirt removal · A scraper bar according to Claims 1 and 2, characterized in that the radius of curvature of the faces (6) of the teeth (9) is 1.2 to 1.48 times greater than the radius of the opening roller (10), wherein the axis of the screed (3) does not pass through the center of the opening roller (10).