JPH11189928A - Fiber peeler in combing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fiber peeler in a combing machine that is simplified and miniaturized and can enough fit to the practical use with an inexpensive structure because it surely peels fibers on a doffer and stably sent them out to the following step. SOLUTION: A groove roller 4 in which a metallic wire is set in a helical dented groove 2 on its peripheral face is combinadly used with a smooth roller 8 that is floatingly supported so that it can retreat, is energized so that a prescribed gauge position may be retained, has a dented groove 7 extended on the peripheral face in the longitudinal direction and is rotated in the reverse direction to the groove roller 4 at a little slower surface rate than that of the groove roller 4 to effect pressing, separation and conveying. Thus, the power of the groove roller 4 for holding and conveying fibers 5 is lowered after a position at which both of the rollers oppose to each other while, on the contrary, the power of the smooth roller 8 for holding and conveying the fibers 5 is increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber stripping device of a carding machine provided at a fiber stripping section of a doffer, and more particularly, to a fiber stripping machine of a carding machine in which a fiber conveyed by the doffer is stripped by a roller member and sent out. It concerns the device.

[0002]

2. Description of the Related Art Conventionally, an apparatus of this kind is disclosed in
No. 0-42172 and Japanese Utility Model Publication No. Sho 55-20772.

[0003] The publication discloses a device for peeling fibers from a doffer in a carding machine, in which a spiral groove is formed in the length direction of the peripheral surface in the vicinity of the doffer and in the same direction as the doffer roller. A doffing roller wound with a sawtooth-type garment, in which the teeth protrude from the peripheral surface or are located within the peripheral surface in the groove.
Further, there is disclosed an apparatus provided with a guide roller provided in proximity to the doffing roller and rotated in the opposite direction to the doffing roller.

[0004] A saw-toothed cloth located in a spiral groove provided on the peripheral surface of a rotating doffing roller is provided with a fiber on the surface conveyed by the doffer at a position facing the doffer. The fibers are continuously peeled off from the doffer by being transferred while being caught by the guide roller, and are fed out in cooperation with the guide rollers.

[0005] Further, in the official gazette, an intermediate roller is provided near a doffer of a carding machine, and a metallic wire is spirally wound around a peripheral surface thereof. The intermediate roller is provided near the intermediate roller and rotates in a direction opposite to the intermediate roller. Transfer and stripping rollers,
And a device (a) having a groove roller wound around a metallic wire protruding from the peripheral surface in a concave groove, which is installed near both the intermediate roller and the transfer and stripping roller, and installed near a doffer of a carding machine; An intermediate roller in which a metallic wire is spirally wound around the peripheral surface as usual, a transfer / peeling roller provided near the intermediate roller and rotated in a direction opposite to the intermediate roller, and a groove roller and a transfer / peeling roller. A device (b) having a grooved roller wound around a metallic wire protruding from the peripheral surface into the groove, and a device (b) disposed near a doffer of a carding machine and protruding from the peripheral surface into the groove. Roller that has a metallic wire wound around it and has a transfer and peeling roller that is installed near this groove roller and that rotates in the opposite direction to the groove roller. Device (c) is disclosed.

[0006] According to these, originally, in the carding machine, the fiber on the doffer is intermittently peeled off by a flycom which reciprocates up and down in a vibrating manner up and down. It is conceivable that the difficulty can be solved by increasing the rotation speed of the roller member that separates the fibers from the doffer by rotation.

[0007]

However, at present, such a fiber peeling device using a rotating roller member as described above has not been put to practical use anywhere in the world including Japan. That is, the hooking property of the roller member with the fiber for peeling the fiber is incompatible with the fiber separation property of the roller member for separating the fiber carried by the roller member. This seems to be due to the fact that they are incompatible with the transportability of carrying and transporting the fibers.

More specifically, if the ability of the roller member to be caught with the fiber is increased to enhance the peelability and transportability of the fiber from the doffer, it is difficult to pull out the fiber separated from the roller member from the roller member. Roll-up occurs. If the releasability of the fiber is improved by lowering the hooking property of the roller member with the fiber, the releasability and transportability of the fiber from the doffer cannot be satisfied. The releasability can be compensated for by increasing the number of revolutions of the roller member, but this tends to cause the fiber to wind up.

[0009] The above device disclosed in the publication of
Has substantially the same structure as that of the device (c) disclosed in the above publication. Discloses that a sawtooth-type clothing (hereinafter referred to as a metallic wire) provided in a concave groove of a roller may be located in the peripheral surface of the roller. This is different from the device (c) disclosed in the gazette.

[0010] Here, the concave groove has a function of suppressing the catching property of the metallic wire with the fiber according to the accommodation degree of the metallic wire provided therein. The degree of protrusion of the metallic wire from the peripheral surface of the roller and the amount of entry of the metallic wire from the peripheral surface of the roller can be freely set. No matter how this is set, even if the gripping force of the fiber is reduced by the amount of the weakness of the roller member catching with the fiber, even if the fiber is separated from the doffer by setting the gauge and rotation speed with the doffer, Since the carrying force for carrying the sheet and pulling it out to the next is weakened, the function of peeling and pulling out the fiber is weak as a result. The guide roller disclosed in the above publication and the transfer / peeling roller in the device (c) disclosed in the above publication are provided to supplement the above-mentioned transportability, and also to supplement the fiber peelability.

The guide roller and the transfer / peeling roller are rollers having a smooth surface, and are fixedly provided at predetermined positions close to each other with a predetermined gauge on a groove roller. There is no, but the fiber is pinched between the groove roller and the fiber is pushed into the groove of the groove roller by this pinching,
The transport force is enhanced by strengthening the catch with the metallic wire there, and this improves the releasability when the subsequent fiber is peeled from the doffer by the groove roller.

By the way, the fiber peeled from the doffer is a web in which the foreign matter is removed by the unwinding action, the opening action and the carding action, and the parallelism of the fiber is good. In some cases, there is a variation in the thickness of the fibers, and nep, seed residue, leaf residue, etc., in which fibers remain in a lump, are still mixed in the fibers. Cotton wax is attached to the surface of regular cotton, and fibers such as Sudan cotton, Egyptian cotton, and sea-island cotton have long been referred to as high-grade fibers. ~ 50% longer. However, the secretion of insects called honeydew adheres to the surface of the fiber.

According to an experiment conducted by the inventor, when the fiber layer is thicker than a predetermined thickness, or when there is a nep or a honeydew, excessive engagement with the metallic wire in the concave groove of the groove roller at the time of pinching the fiber occurs. Or the metal wire is more strongly caught in the groove while clogging in the groove, the fiber releasability from the groove roller deteriorates, and the fiber easily winds up along the groove roller.
It was found that there was a trouble in the operation of the carding machine.

In order to solve this problem, it is necessary to keep the number of rotations of the groove roller as low as possible and to keep the guide roller and the transfer / peeling roller at a predetermined distance from the groove roller. In this case, the fiber conveyance force between the groove roller and the guide roller or the transfer / peeling roller is reduced, and the releasability of the groove roller for separating subsequent fibers from the doffer is also reduced. In addition, foreign substances such as cotton wax adhering to the surface of regular cotton, in particular, honeydew that is often adhered to the high-grade fibers are not sufficiently removed.

Therefore, the above-mentioned device disclosed in
The device (c) disclosed in the above publication cannot be put to practical use.

The apparatus disclosed in the above publications (a) and (b) solves the problems of the above described apparatus disclosed in the publication and the apparatus described in the above publication (c) based on experiments conducted by the present inventor. It seems to have tried. The apparatus disclosed in the above (a) and (b) is provided with an intermediate roller having a metallic wire wound on the surface of a roller having no groove, close to the doffer, thereby improving the releasability of the fiber from the doffer. The transportability of carrying and transporting the peeled fibers is enhanced, and as the peelability and transportability of the intermediate roller are increased, the fiber releasability of the intermediate roller is reduced and the fibers are wound up.

Therefore, in these apparatuses, a groove roller having a metallic wire wound around the intermediate roller is provided close to the intermediate roller, and the fiber which the intermediate roller surely peels off from the doffer and tries to wind up is provided. The film is peeled off by the groove roller and sent out in cooperation with the transfer and stripping roller.

However, even in this case, the function of the groove roller and the transfer / peeling roller with respect to the intermediate roller is the same as that of the above-described apparatus disclosed in Japanese Patent Application Laid-Open Publication No. H11-27139 or the above-mentioned Japanese Patent Application Laid-Open Publication No. H10-209686.
It cannot solve the same problem as in the case of working on the doffer of this device.

There are reasons why these cannot be used. Moreover, the structure is complicated and the cost is high, and the fiber peeling part is bulky.

The present inventor has also developed various devices of the same type, and there is an earlier application, for example, Japanese Utility Model Application No. Hei 1-104159. However, repeated experiments have revealed that this is not suitable for practical use as in the case of the above-mentioned conventional apparatus.

Therefore, the present inventor paid attention to the fiber transport force of the guide roller for peeling and transporting the fiber from the doffer in cooperation with the groove roller and the method of operating the guide roller. I have newly found that it has a significant meaning.

An object of the present invention is to provide a simple, compact and inexpensive structure based on such new knowledge, which enables the fibers conveyed by the doffer to be reliably peeled off and sent out stably, and to be sufficiently practical. It is an object of the present invention to provide a doffer fiber peeling device capable of withstanding a doffer.

[0023]

In order to achieve the above object, the present invention is provided near a doffer,
A spiral groove is formed on the peripheral surface, and the groove roller is rotated in the same direction as the doffer, and has a grooved roller in which a metallic wire is wound so as to be lower than the peripheral surface by a predetermined amount. The roller is floatingly supported so as to be able to retreat and is urged to maintain the predetermined gauge position, and a longitudinal concave groove is provided in the circumferential direction on the peripheral surface, and the surface speed of the groove roller is determined. A smooth roller that can be pressed, separated and transported by rotating in the opposite direction to the groove roller at a slightly lower surface speed,
It is characterized by having.

In such a configuration, the fibers peeled off from the cylinder on the doffer are conveyed toward the portion facing the groove roller in a state where they are swollen with a certain volume. The groove roller has a conventionally known structure and function, and a fiber on the doffer is compressed from the above-mentioned duffer with the doffer by an appropriate gauge and an appropriate rotation speed with the doffer, so that the groove is formed. The roller moves slightly into the groove on the peripheral surface of the roller, and is gripped by the edge of the groove or the hook of the tip of the tooth of the metallic wire. On the other hand, the groove roller surely peels off the fiber on the doffer in a sufficient gripping state, and conveys the fiber in the rotation direction.

When the fiber peeled from the doffer by the groove roller and conveyed in the rotating direction reaches the portion facing the smooth roller, the smooth roller can be retracted from the groove roller, but it is attached so as to maintain a predetermined gauge position with the groove roller. By being urged, the fibers are intruded into their own grooves having nothing inside while compressing the fibers between the groove rollers, and at the same time, the surface speed of the smooth roller is higher than the surface speed of the groove rollers. Is low, the groove roller attempts to delay the fiber to be conveyed by the speed difference, so that the movement of the fiber is received by being caught by the groove into which the fiber has entered, and the fiber is caught in its own groove. While taking it deeper into the body, naturally separate it from the metallic wire teeth that Therefore, the gripping force and transport force of the fiber on the groove roller side to the fiber after the opposing portion of the groove roller and the smooth roller are weakened, and the gripping force and transport force of the smooth roller side having no concave groove without the metallic wire are reduced. Since the fibers become stronger, the fibers that have been peeled off from the groove roller and transported by the groove roller are now smoothly removed from the groove rollers to the smooth roller side by the smooth roller. Also enhances the releasability.

Further, when the thickness of the fiber is more than a predetermined value or when there is a nep which is a lump of the fiber, the smooth roller is opposed to the groove roller and the urging force urged to be at the predetermined gauge position. Do not excessively compress the fiber, so that excessive compression may cause the fiber to catch on the groove of the groove roller and the metallic wire inside it, causing the fiber to roll up. Can be avoided.

Therefore, the fiber on the doffer can always be stably peeled and sent out in any situation, and it can be sufficiently used in practical use. Since the structure is not complicated, it can be manufactured at low cost. It is possible to suppress the bulking of the fiber exfoliated portion of the doffer.

Moreover, since the excessive compression of the fibers can be avoided by the floating support structure of the smooth roller, the predetermined gauge position of the smooth roller with respect to the groove roller may be set to the minimum necessary, and in some cases, the gauge may be set to zero. Therefore, even when leaf residue or seed residue is still left in the fiber, it is finely crushed with the help of the biasing force between the flat peripheral surfaces of the smooth roller and the groove roller, and from the fiber. Since the fibers are shaken off or easily dropped and removed, the quality of the fibers peeled off from the doffer and sent out can be improved. In particular, not only cotton wax adhering to the surface of regular cotton, but also honeydew adhering to the surface of high-grade cotton with fine fibers can be removed with reasonable but sufficient pressure on the fibers. A good sliver is obtained.

In this case, if the position adjusting means for adjusting the predetermined gauge position is provided, the optimum gauge position corresponding to the kind of the fiber material and the difference in the fiber thickness corresponding to the setting of the spun gel, etc. , The versatility is improved.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings together with the embodiments.

As shown in FIG. 1 and FIG. 2, the present embodiment is provided near the doffer 1 and has a peripheral surface 4a.
A spiral groove 2 is formed in the groove 2, and the groove 2 is rotated in the same direction as the doffer 1 and has a dimensional ratio as shown in FIG. A groove roller 4 around which a metallic wire 3 having a back angle θ1 and a working angle θ2 is wound, and a floating support for the groove roller 4 so as to be able to retract, and a spring 6 or the like so as to maintain the predetermined gauge position. A longitudinal concave groove 7 which is urged and has no metallic wire on the peripheral surface is provided in the circumferential direction, and is rotated in a direction opposite to the groove roller 4 at a surface speed slightly lower than the surface speed of the groove roller 4. And a smooth roller 8 that can perform pressure, separation, and conveyance, and smoothly perform separation and conveyance. The predetermined gauge position is set to be smaller than the thickness t of the fiber 5 which is peeled and conveyed from the doffer 1, for example.
Various settings may be made in some cases.

The metallic wire 11 is wound around the doffer 1 so that the dorsal angle is directed in the rotation direction, and is driven to rotate in the direction of the arrow in the figure. In one embodiment shown in FIGS. 1 to 6, the groove roller 2 has a single groove 2 formed in a state as shown in FIGS. 4 and 5. The metallic wire 3 is wound so as to face. The concave grooves 2 are provided in two lines as in the other embodiments shown in FIGS. 7A and 7B and FIG. 8, or four or more grooves as in the embodiment shown in FIG. 7C. May be provided. When a plurality of grooves 2 are formed, one groove 2
Although the spiral lead becomes larger, the interval between the adjacent grooves 2 can be easily reduced, and the inclination of the grooves 2 with respect to the roller axis becomes gentle.
When is rotated, the edge 2a of the concave groove 2 is easily caught by the fiber 5, and the concave groove 2 and the edge 2a easily grip and transport the fiber.

The groove 2 of the groove roller 4 has, for example, a vertically long rectangular shape as shown in FIG. 5 in a cross section in a direction perpendicular to the spiral direction, and extends along the bottom of the groove 2. The base of the metallic wire 3 is fitted and wound around the fitting groove 2b provided so as to be positioned.

The smooth roller 8 is provided with the roller 1 shown in FIGS.
In one embodiment, a groove 7 is formed parallel to the axis of the smooth roller 8 and has a V-shaped cross section as shown in FIG. However, the groove 7 can be inclined with respect to the axis to increase or decrease the fiber transportability by the groove 7.
Also, the width of the grooves 2 and 7 or the shape of the groove 2 or 7 is widened like a dovetail groove so that the cross-sectional shapes of the edges 2a and 7a of the grooves 2 and 7 become acute angles, and conversely, they are opened. Even if the edges 2a and 7a are obtusely angled so as to spread to the side, the transportability can be adjusted.

While the doffer 1 is conventionally rotatably supported on a side frame 12 of a carding machine by a bearing (not shown), one doffer 1 is provided for installing the groove roller 4 and the smooth roller 8. As shown in FIGS. 2 and 3, as an embodiment, it is installed on the side frame 12 so that the position can be adjusted by bolts 13 and the like as shown in FIG. An additional frame 15 is provided. The groove roller 4 is supported on the frame 15 via a centering type bearing 101 or directly supported, and the smooth roller 8 is centered on a lever 17 having one end pivotally supported by the shaft 16 on the frame 15. Type bearing 10
The bearing 17 is floatingly supported through or directly through the groove roller 2 so as to be able to separate and contact with the groove roller 4 as the lever 17 swings. Smooth roller 8 to groove roller 4
A stopper 21 is provided on the frame 15 for restricting a predetermined gauge position closest to the lever 17 to the lever 17. The stopper 21 is a bolt screwed to the support piece 15a of the frame 15, and by adjusting the screwed position, a predetermined gauge position can be adjusted.
The stopper 21 constitutes a position adjusting means. But,
Various other methods and mechanisms can be employed for such a position adjusting unit.

The portion of the frame 15 which holds the bearing 101 and through which the rotating shaft 8a of the smooth roller 8 passes is divided with positioning fitting portions 115a and 115b, respectively, so that the bearing 101 supports the groove roller 4 and the smooth roller. 8 is easy to thread. The housing portion 17a for holding the bearing 102 of the lever 17 is not divided, but has a hole 17b on the diameter line for fitting the bearing 102 sideways, and the bearing spherical surface 17c of the housing portion 17b in the hole 17b. After that, the bearing 102 can be held by turning the bearing 102 around a diameter line facing the longitudinal direction of the hole 17b until the entire circumference is fitted into the supporting spherical surface 17c, If the held bearing 102 is fitted to the rotating shaft 8a of the smooth roller 8 and the lever 17 is attached to the frame 15, the bearing 102 is not accidentally detached thereafter.

The other support piece 15 of the frame 15 is provided on the opposite side of the portion of the lever 17 facing the stopper 21.
The compression spring 6 is actuated between the adjustment roller 22 and the pressing pad 22a attached to the tip of the adjusting bolt 22 screwed to the position b so that the smooth roller 8 is attached to the predetermined gauge position regulated by the stopper 21 at all times. Energize. Various other methods and mechanisms can be employed for such biasing means.

The clear roller 3 shown in FIG. 7 which winds up the wound fiber 5 and fiber waste while wiping off the adhered fiber and oil material on the groove roller 4.
1, and further wipe off the remaining fiber dust and oil material,
The brush 32 as shown in FIG.
The clearer roller 31 and the brush 32 are supported by a simple holding method in which they are fitted and held in slits 15c and 15d provided in the upper part of the frame 15 so as to be vertically movable and detachable as schematically shown in FIG. it can.

The clearer roller 31 is formed by laminating a fabric having raised hairs 31a which are habitally formed on the surface thereof so as to maintain a predetermined inclination angle, so that the bristle ends are directed in the driven rotation direction with the groove roller 4. The fibers adhering to the surface of the groove roller 4 can be scooped up with raised hairs and reliably removed from the surface of the groove roller 4. The fibers scooped by the clearer roller 31 can be easily removed by removing the clearer roller 31 and wiping the fibers in the inclined direction.

In this embodiment, as shown in FIGS. 1, 2 and 4, the brush 32 has, at four locations in the circumferential direction of the rotating shaft 32a, raised hairs 32b having a leg length aligned in the axial direction. The naps 32b arranged in the axial direction are used to pop out and remove fiber debris and the like that are attached to and remain in the minute portion in the concave groove 2 of the groove roller 4. A lever pivotally supported on the frame 15 by the shaft 103. Support at the tip of 104,
The elongated holes 105 and the bolts 106 are used to adjust and position the brush 32 so that the brush 32 has a predetermined contact margin with the blue roller 4.

The support structure in which the clearer roller 31 can move up and down also means that it can cope with a change in diameter in the case where the winding of the fiber waste is repeated and the winding becomes thick. In addition, the scraper 33 is operated on the smooth roller 8,
Fiber dust remaining on the surface of the smooth roller 8 is scraped off. The scraper 33 is held by a holder 35 pivotally supported on the frame 15 by a shaft 34, and is pressed against the surface of the smooth roller 8 by a spring 36 operated between the holder 35 and the frame 15. However, various methods and mechanisms can be employed for such a fiber dust scraping means.

The clearer roller 31, brush 3
The scraper 33 and the fiber scraps such as staple fibers, fiber dust, and oil material hinder the function of separating and sending out the fiber 5 from the doffer 1, and reduce the fiber 5 to be separated and sent out from the doffer 1. The quality of the spun and spun fibers is prevented from deteriorating.

The fibers peeled off from the cylinder (not shown) on the doffer 1 are conveyed toward the portion facing the groove roller 4 in a state of being swollen with a certain volume. The groove roller 4 has a conventionally known structure and function, and a fiber on the doffer 1 is compressed from the inflated state with the doffer 1 by an appropriate gauge and an appropriate rotation speed with the doffer 1. Then, the groove 2 is slightly penetrated into the groove 2 on the peripheral surface of the groove roller 4 so that the groove 2
Of the metallic wire 3 or the like.

Thus, the relative movement of the surface of the groove roller 4 opposite to the doffer 1 is opposite to the direction of movement of the surface of the groove roller 4, so that the groove roller 4 reliably peels off the fibers on the doffer 1 in a sufficiently gripped state. It is conveyed in the rotation direction as shown in FIG.

The fibers separated from the doffer 1 by the groove roller 4 and conveyed in the rotation direction are smoothed by the smooth roller 8.
When the smooth roller 8 reaches the opposing portion, the groove roller 4 and the fiber 5 conveyed by the groove roller 4
1 is pressed so as to maintain a predetermined gauge position as shown in FIG. At the same time as the fiber 5 is caused to penetrate into the fiber, the surface speed of the smooth roller 8 is lower than the surface speed of the groove roller 4 so that the fiber 5 to be conveyed by the groove roller 4 is delayed by the speed difference. 5
Of the groove 5 is caught by the front and rear edges 7a of the groove 7 into which the fiber 5 has penetrated, and the fiber 5 is received deeper into the groove 5 of the groove 5 while forming the dorsal angle of the groove roller 4. Of the metallic wire 3 which is naturally separated from the teeth of the metallic wire 3, the gripping force and the conveying force of the fiber on the side of the groove roller 4 with respect to the fiber 5 after the opposing portion of the groove roller 4 and the smooth roller 8 become weak, and the smooth roller Since the gripping force and the transporting force on the side 8 are increased, the fiber that the groove roller 4 has peeled off from the doffer 1 and transported is now smoothly removed by the smooth roller 8 from the groove roller 4 to the smooth roller 8 side. And the peelability of the following fiber from the doffer 1 is also enhanced.

Further, when the thickness of the fiber 5 is equal to or more than a predetermined value or when there is a nep which is a lump of the fiber 5, the smooth roller 8 is biased so as to be located at a predetermined gauge position with the groove roller 4. Retreat against the power, fiber 5
Is not excessively compressed, so that excessive compression may cause the fibers 5 to be caught by the concave grooves 2 of the groove roller 4 and the metallic wires 3 therein, thereby causing the fibers 5 to wind up. Can be avoided.

Therefore, the fiber 5 on the doffer 1 can always be peeled off and sent out stably under any circumstances, and the fiber 5 can sufficiently be put to practical use. Since the structure is not complicated, the cost is low. And the bulk of the fiber exfoliated portion of the doffer can be suppressed.

When the fed fiber 5 is kissed by a calender roller 42 via a trumpet 41,
The fibers 5 are sliver-shaped by the trumpet 41, pressed and drafted by the calender roller 42, sent to a coiler (not shown), formed into a sliver with an appropriate twist, and coiled in a coiler case. It is stored in a shape.

Further, since the excessive compression of the fiber 5 can be avoided by the floating support structure of the smooth roller 8, the predetermined gauge position of the smooth roller 8 with respect to the groove roller 4 may be set to the minimum necessary. Can be reduced to 0, which results in a fiber 5
Even if there is still leaf residue or seed residue inside,
This is crushed finely with the help of the urging force between the flat peripheral surfaces 8b and 4a of the smooth roller 8 and the groove roller 4 so as to be shaken off from the fiber or to be easily dropped and removed. Therefore, the quality of the fiber peeled from the doffer 1 and sent out can be improved. In particular, not only cotton wax adhering to the surface of regular cotton, but also honeydew stuck to the surface of high-grade cotton with fine fibers can be removed with reasonable but sufficient pressure on the fibers, giving a white quality. A good sliver is obtained.

In this case, a stopper 21 as a means for adjusting the predetermined gauge position is used to set an optimal gauge corresponding to the type of the material of the fiber 5 and the difference in the thickness of the fiber 5 corresponding to the setting of the spun gel. Since the position can be obtained, versatility is improved.

One example of this embodiment will be described in detail. The surface speed of the groove roller 4 is increased by 10% to 15% of the surface speed of the doffer 1 and both gauges are increased by 12/10.
00 inch to 17/1000 inch, one groove 2
In the case of 1 inch pitch, in the case of 4 strips 2-3 inches
ch, the surface speed of the smooth roller 8 is
Between 3% and 7% of the surface speed of
Required amount, the back angle θ1 of the teeth 3a of the metallic wire 3 is 5
2 °, working angle θ2 is 75 °, and the height of the teeth 3a is 1.5 m
m, tooth root thickness 0.5mm, tooth tip thickness 0.2m
m, the amount of penetration h lowered from the roller peripheral surface 4a of the tooth tip
Was effective as 0.5 to 1.5 mm.

The thickness of the yarn is roughly classified into four types. More specifically, the number from about 10 to about 20 is said to be a thick count, and as a product, it is used for denim fabric, towel fabric, work gloves, and the like. From around 30th to around 40th is said to be medium count, and as products, knitted underwear, sheets,
Used for ordinary Y-shirts. 8 from around 60th
It is said that the finest number is around 0th, and it is used as Y-shirt fabric, glufware, blouse, etc. It is said that the high count is from the 100th to the 160th, and the highest grade Y
Used as shirting, golf wear, georgette fabric.

[0053] Thick and medium count fibers are generally thick and short, so when spinning, reverse draft is 10% and pressure is 100%.
It is good to set to about Kg. Fine and high count fibers are usually fine and long, so when spinning, reverse draft should be 5 times.
% And pressurization are preferably set to about 60 kg.

The above conditions are further divided in detail, and the more optimum conditions are shown in Table 1 below.

[0055]

[Table 1]

FIGS. 9A and 9B show a transmission mechanism from the doffer 1 to the groove roller 4 and the smooth roller 8 and examples of the actual number of transmission teeth. By setting, the required rotation ratio can be easily obtained by adjusting the number of teeth of the conventional mechanism without providing a special transmission mechanism. However, it goes without saying that the transmission mechanism may be designed in any way.

[0057]

According to one aspect of the present invention, the groove roller has a structure and function known in the art, and by adequately gauging with the doffer and at an appropriate rotation speed, sufficient gripping of the fiber on the doffer is achieved. In order to ensure the peeling in the state and transport in the rotation direction, the smooth roller with no metallic wire and only the concave groove keeps the predetermined gauge position smaller than the thickness of the groove roller and the fiber transported by the groove roller By being urged into the groove roller, the fiber enters into its own concave groove having nothing inside while compressing the fiber with the groove roller, and at the same time, the smooth roller has a smoother speed than the surface speed of the groove roller. Due to the low surface speed, the fibers conveyed by the groove roller are delayed by the speed difference and the fibers are received deeper into their own grooves. Since it naturally separates from the teeth of the metallic wire that is the dorsal angle of the groove roller, the gripping force and transport force of the fiber on the groove roller side with respect to the fiber after the facing portion of the groove roller and the smooth roller become weaker, Since the gripping force and transport force on the smooth roller side, which has no concave groove and no metallic wire, are increased, the fiber that has been separated from the groove roller and transported by the groove roller is now smoothly moved from the groove roller to the smooth roller side. In addition to releasing the fiber stably and reliably, the peelability of the following fiber from the doffer is also improved.

Further, when the thickness of the fiber is more than a predetermined value or when there is a nep which is a lump of the fiber, the smooth roller opposes the urging force for urging the groove roller and the groove roller to be at a predetermined gauge position. Do not excessively compress the fiber, so that excessive compression may cause the fiber to catch on the groove of the groove roller and the metallic wire inside it, causing the fiber to roll up. Can be avoided.

Therefore, the fiber on the doffer can always be stably peeled off and sent out in any situation, and it can withstand practical use. Further, since the structure is not complicated, it can be manufactured at low cost. It is possible to suppress the bulking of the fiber exfoliated portion of the doffer.

Moreover, since excessive compression of the fiber can be avoided by the floating support structure of the smooth roller, the predetermined gauge position of the smooth roller with respect to the groove roller may be set to a necessary minimum, and in some cases, the gauge may be set to zero. Therefore, even when leaf residue or seed residue is still left in the fiber, it is finely crushed with the help of the biasing force between the flat peripheral surfaces of the smooth roller and the groove roller, and from the fiber. Since the fibers are shaken off or easily dropped and removed, the quality of the fibers peeled off from the doffer and sent out can be improved. In particular, not only cotton wax adhering to the surface of regular cotton, but also honeydew adhering to the surface of high-grade cotton with fine fibers can be removed with reasonable but sufficient pressure on the fibers. A good sliver is obtained.

In this case, if the position adjusting means for adjusting the predetermined gauge position is provided, the optimum gauge position corresponding to the kind of the fiber material and the difference in the fiber thickness corresponding to the setting of the spun gel, etc. , The versatility is improved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a part of a carding machine showing one example of a typical embodiment of the present invention.

FIG. 2 is an external side view of FIG.

FIG. 3 is a sectional view of a frame supporting a groove roller, a smooth roller, and the like in FIG. 2;

FIG. 4 is a perspective view showing a fiber peeling device of FIG. 1;

FIG. 5 is a sectional view of the groove roller of FIG. 4 as viewed in the axial direction.

6 is a cross-sectional view and a side view of a metallic wire used for the groove rollers of FIGS. 4 and 5. FIG.

FIG. 1 shows a groove roller according to another embodiment used in the fiber peeling device of the present invention, in which (a) is a partial front view in the case where two grooves are provided, and (b) is (). FIG. 3A is a cross-sectional view of the roller, and FIG. 3C is a cross-sectional view when four grooves are provided.

FIG. 8 is a front view showing another embodiment in which the inclination angle of the two grooves of FIG. 7A is further increased.

9A and 9B show a drive transmission mechanism of the fiber peeling device shown in FIGS. 1 and 2, wherein FIG. 9A shows a drive transmission mechanism from a doffer to a groove roller, and FIG. 9B shows a drive transmission mechanism from a groove roller to a smooth roller. FIG.

[Explanation of symbols]

 1 Doffer 2, 7 Groove 2a, 7a Edge 3 Metallic Wire 4 Groove Roller 5 Fiber 6 Spring 8 Smooth Roller

Claims (2)

[Claims] 1. A helical groove is formed in the vicinity of a doffer, and a helical groove is formed in a peripheral surface thereof. The helical groove is rotated in the same direction as the doffer, so that the groove is lower than the peripheral surface by a predetermined amount. A grooved roller having a metallic wire wound around the grooved roller, and the grooved roller is floatingly supported so as to be able to retreat, and is urged to maintain the predetermined gauge position, and a longitudinal groove is formed in a circumferential surface on a circular surface. A pressure / rotation device that is arranged in the circumferential direction and is rotated in a direction opposite to the groove roller at a surface speed slightly lower than the surface speed of the groove roller.
A fiber separating device for a carding machine, comprising: a smooth roller capable of separating and conveying. 2. The fiber peeling device of a carding machine according to claim 1, further comprising position adjusting means for adjusting a predetermined gauge position of the smooth roller with respect to the groove roller.