JPS585289B2 - Regenerated fiber manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an improvement in a regenerated fiber manufacturing apparatus that unravels the waste layer of processed fiber products such as woven fabrics, non-woven fabrics, twisted yarns, or felt, defibrates them into single fibers, and uses them as raw materials for textile products again. It is related to.

First, the content of the invention before improvement, that is, the initial invention, will be explained with reference to FIG. This is a drive pulley fixed to the rotating shaft of the electric motor 3.

Reference numeral 4 denotes a main roller rotatably supported horizontally on a part of the corresponding side wall of the device S on the side of the insertion opening 5 (on the left side in the figure) provided in the form of a slit in the device S. Sawtooth wires 6 to 6 are wound around the outer peripheral surface.

Further, a driven pulley 7 is fixed to one end of the main roller 4 in correspondence with the driving pulley 2, and an endless belt 8 is hung between the pulleys 2 and 7.

Reference numeral 9 denotes a supply conveyor that conveys a waste layer (hereinafter simply referred to as a work) W of textile products such as woven fabric, nonwoven fabric or twisted yarn; 10 and 11 and 12 and 13 are pairs of gripping rollers, respectively; Pairs of gripping rollers 10, 11 and 12° 13 are arranged in tandem between the insertion port 5 of the device S and the supply conveyor 9 in parallel to the axis of the main roller 4, and the workpieces W are held by the main rollers. It is driven by an electric motor 14 so as to feed it in the direction of arrow T2, which is supplied to the 4th side.

In addition, the outer peripheral surfaces of the gripping rollers 10, 11 and 12, 13 are each wrapped with a flexible member such as rubber, or wire wrapped, in order to strengthen the biting and gripping force of the workpiece W. , or a suitable combination thereof, and the pair of rollers are supported pivotably so that the gap between them can be adjusted.

Thus, the supply conveyor 9, the pair of gripping rollers 10,
11, 12, and 13 form a main supply section A.

15 is a spiral cover, and 16 is a separation chamber cover, which forms an outer shell of the device by a rear wall 17 on the right side in the drawing and left and right side walls (not shown).A separation chamber 18 is provided on the right side of the main roller 4 in the drawing. is formed.

The spiral cover 15 extends upward from the upper side of the insertion opening 5 along the outer periphery of the main roller 4, is joined to the separation chamber cover 16, and is connected to the inner wall surface of the spiral cover 15 and the rotational trajectory of the tip of the wire 6. A spiral guide path 19 is formed that gradually widens in the rotational direction, and is in wide communication with the separation chamber 18 .

Reference numeral B designates a sub-supply section (in this example, a single sub-supply section is provided) which is disposed at one or more locations at different angles from the main supply section A with respect to the main roller 4 .

Reference numeral 20 denotes a conveyor of the sub-supply section B, which is disposed horizontally in the apparatus S, and is oriented in the direction of arrow T3 and the direction of arrow T4 in the opposite direction.
It is possible to rotate in the direction.

Reference numeral 24 denotes a gripping roller of the sub-supply section B, which is located between the main roll 4 and the conveyor 20, and runs parallel to the axis of the main roll 4.
It is rotatably supported on the left and right side walls of the body, and a soft material such as rubber or a wire is wound around the outer circumferential surface of the body.

A dish plate 25 is provided between the main roller and the conveyor 20 in correspondence with the gripping roller 24, and a curved surface 25A along the outer peripheral surface of the roller 24 is formed on the surface corresponding to the gripping roller 24. The distance 26 between the outer circumferential surface of the gripping roller 24 and the curved surface 25A is formed so as to become gradually narrower toward the main roller 4 side, and the gripping roller 24 is movable up and down, so that the distance 26 can be adjusted. ing.

tl is an arrow indicating the rotation direction of the gripping roller 24, Wt is a single fiber l of the workpiece W defibrated by the main roller 4, and single fiber group 1
1 is the accumulated single fiber accumulated on the conveyor 20.

Thus, the conveyor 20, the gripping roller 24, and the dish plate 25 constitute a sub-supply section B.

Note that the feeding means to the main roller 4 side is the gripping roller 24.
Although the combination is illustrated as a combination of and dish plate 25, it may also be a pair of gripping rollers.

Further, 27 is a separator plate. 28 is the dish plate 25
29 is a duct for discharging the single fibers 1, and 30 is a discharge port.

Next, the operation of the initial invention configured as described above will be explained in detail.

Now, the workpiece W placed on the supply conveyor 9 of the main supply section A is transferred in the direction of the arrow T2, and is bitten by a pair of gripping rollers 10° 11 and 12, 13 provided close to the main roller 4. , the main roller 4 is sufficiently compressed and rotating at high speed.
sent to the side.

The tip of the sent workpiece W is caught by the tip of the wires 6 to 6 wound around the outer peripheral surface of the main roller 4, and is defibrated.

That is, the gripping roller pairs 10, 11 and 1. ．． Since the circumferential speed of the main roller 4 is significantly different from that of the main roller 13, even though the tip of the workpiece W caught on the tooth tip of the wire 6 is moved at the same circumferential speed as the main roller 4, the workpiece W itself Since the workpiece W is sent out at the same speed as the peripheral speed of the gripping rollers 10, 11 and 12, 13, the workpiece W caught on the tooth tips of the wire 6 is continuously subjected to a fibrillation action in which the workpiece W is individually pulled out into single fibers. That will happen.

As a result, the single fibers L that have been pulled out and the single fiber group 11 whose rear end portions of the workpiece W have not been sufficiently pulled out are rotated together with the main roller 4, and when they come out of the spiral guide path 19, centrifugal force and air flow Under this action, the wire 6 is separated from the tip of the tooth, discharged into the separation chamber 18, and accumulated on the conveyor 20 of the sub-supply section B.

This is hereinafter referred to as accumulated single fiber Wt. The accumulated state of the accumulated single fibers Wt on the conveyor 20 is such that the single fiber group 11 with a large mass released from the main roller 4 is transferred onto the conveyor 20 at a position far from the main roller 4, and the single fiber group 11 with a small mass is The fibers 1 are piled up at a position close to the main roller 4, and are piled up in a state in which their posture or directionality is reliably disturbed.

In this way, the accumulated single fibers Wt whose directionality is disturbed are transferred to the main roller 4 side by the conveyor 20, and are transferred to the gripping roller 24 side.
The fibers are injected into the dish plate 25 and supplied again to the main roller 4 side, where they undergo the same defibrating action as the relationship between the main supply section A and the main roller 4, and are defibrated more reliably.

In this sub-supply section NB, the workpiece W in the main supply section A is
Unlike, since most of the accumulated single fibers Wt are the single fibers 1 that have been defibrated and only include a portion of single fibers 11 that are poorly defibrated, the gripping roller 24 of the sub-supply section B and the dish plate 25 The gripping ability of the main supply section A is not required to be any strong.

The single fibers l that have been sufficiently defibrated in this way are fed to the inlet 28.
The wire is separated from the tips of the teeth of the wire 6 by the airflow flowing in from the wire 6, is discharged from the outlet 30 through the duct 29, and is transferred to the next process.

Purpose of the present invention This invention relates to an improvement on the earlier invention described above, and its purpose is to provide gripping auxiliary rollers for assisting the defibrating action of the main roller, and to install gripping auxiliary rollers in appropriate locations within the separation chamber. The object of this invention is to devise a separation and discharge circuit that effectively separates floating single fibers and leads them out of the machine, thereby improving the earlier invention described above.

Structure of the Present Invention An embodiment of the present invention will be described as one of the means for rationally achieving the above object with reference to FIGS. 2 to 5. In the figures,
Reference numerals 31, 32, and 33 are gripping auxiliary rollers that are disposed close to and opposite to the main roller 4 at a corresponding portion of the spiral guide path 19 of the early invention, and are each driven to rotate in a direction opposite to the rotational direction of the main roller 4. The holding roller pair 12, 13 of the main supply section A and the guide plate 34 are disposed in a continuous manner.

Note that serrated wires 31a, 32a are provided on the outer peripheries of these gripping auxiliary rollers 31, 32, 33.

33a are respectively wound.

Reference numeral 35 denotes a movable guiding plate, which is extended to the separation chamber 18 side via a shaft 37 to a wall plate 36 attached to the separating plate 27 provided opposite to the outer periphery of the main roller 4. The movable guiding plate 35 is rotatably supported on the left and right side walls of the movable guide plate 35, and the angle of the movable guide plate 35 is varied in the vertical direction about the same axis 37 by rotation of the shaft 37.

Reference numeral 38 denotes a separation conduit, which is vertically installed along the width direction of the separation chamber 18 at the right end in the figure of the ceiling of the cover 16 of the separation chamber 18 and communicates with the separation chamber 18 .

Further, the upper end of the separation conduit 38 is connected and communicated with a conduit 40 connected to the suction port side of the fan 39.

Reference numeral 39 denotes the above-mentioned fan, and the discharge port side of the fan 39 is connected to the inlet 42 side of a discharge conduit 41 disposed below the device S, and the cross section of the discharge conduit 41 is from the inlet 42 side to the outlet 43. The outlet 43 is formed into a nozzle shape and gradually narrows toward the side.
The side faces toward the lower surface of the main roller 4.

Therefore, the fan 39 is attached to the main motor 3 and is rotationally driven by an endless belt 44, and the fan 39 is rotated by an endless belt 44 to exhaust air from the exhaust conduit 41.
Blows air inward in the direction of the arrow.

Reference numeral 45 denotes a suction adjustment port provided at the lower end of the conduit 40 connected to the suction port side of the fan 39, and the opening degree of the suction adjustment port 45 is adjusted to blow air to the discharge conduit 41 of the fan 39 during operation. , the amount of air sucked in from the atmosphere is adjusted to adjust the suction dust that sucks the single fibers 1 floating in the separation chamber 18 into the separation conduit 38 via the conduit 40.

Thus, the separation conduit 38, the conduit 40, the fan 39, and the discharge conduit 41 form a separation and discharge circuit.

Reference numeral 46 denotes an air supply port, which is opened in the width direction of the separation chamber 18 with an appropriate width near the attachment point of the separation conduit 38 on the ceiling of the separation chamber cover 16. Adjustable lid 4
7 is installed.

Functions and Effects of the Present Invention Next, the functions and effects of the improvements of the present invention configured as described above will be specifically explained.

Now, the workpiece W, which has been sufficiently pinched and gripped by the gripping roller pairs 10, 11 and 12° 13, is fed to the main roller 4 which rotates at high speed, and is sequentially scraped by the tooth tips of the wire 6 wound around the main roller 4. It is taken and defibrated.

However, in this case, since there is a certain distance between the gripping point of the workpiece W by the pair of gripping rollers 12 and 13 and the tip of the tooth of the wire 6 of the main roller 4, the rear end of the workpiece W to be sequentially defibrated is sufficient. If the gripping force of the pair of gripping rollers 12 and 13 is weak, the work W is pulled out from the gripping point and transferred without being defibrated. .

Therefore, with respect to the main roller 4, the gripping roller pair 12.1
By disposing the gripping auxiliary rollers 31, 32° 33 subsequent to 3, the above-mentioned undefibrated workpiece W is caught on the tips of the teeth of the gripping auxiliary rollers 31, 32° 33 during the transfer process, and is successively brought to the gripping point. It undergoes a fibrillation action in such a way as to change the fibers, and is fibrillated into single fibers.

Further, by disposing a guide plate 34 between the pair of gripping rollers 12 and 13 and the auxiliary gripping roller, the rear end of the undefinated workpiece W can be prevented from deviating, and a defibration effect can be provided. It is.

As mentioned above, the workpiece W is subjected to the fibrillation action by the main roller 4 and the gripping auxiliary roller, and becomes light single fibers L and heavy unfinished fibers 11 (referring to fibers that have not been fully decomposed into single fibers), and the main roller The wire 6 is detached from the tip of the wire 6 under the action of the centrifugal force and airflow of the wire 6 and is discharged to the separation chamber 18 side.

Among the heavy unfinished fibers 11 discharged into the separation chamber 18, those with a large mass are discharged to a position far from the main roller 4, and those with a small mass are discharged to a position close to the main roller 4.
The single fibers Wt accumulate on the conveyor 20 in a state where their directionality is disturbed, and are transferred to the main roller 4 by the conveyor 20.
The fibers are transferred again to the main supply section A and the main roller 4, and are subjected to the same defibrating action as the relationship between the main supply section A and the main roller 4, thereby being defibrated more reliably.

In addition, the separation chamber cover 1 is located close to the discharge side of the main roller 4.
By providing a movable guide plate 35 extending to the separation chamber 18 near the ceiling side of the conveyor 20, it is possible to promote the air flow action of the main roller 4 and to prevent the non-uniform fibers 11 from accumulating on the conveyor 20. The directionality can be made more disordered, and the defibrating effect of the sub-supply section can be enhanced.

On the other hand, many light single fibers, that is, single fibers with small mass, released into the separation chamber 18 remain suspended in the separation chamber 18 for a long time, but they hang down on the ceiling of the separation chamber 18 connected to the conduit 40 connected to the fan 39. is aspirated into the separation conduit 38 provided.

The suction force into the separation conduit 38 is adjusted by the opening degree of the suction adjustment port 45 provided on the suction side of the fan 39, and the single fibers l move upward within the vertical separation conduit 38 at a relatively slow speed. It gets sucked in.

Therefore, even if the non-monofilament 11 is sucked, it falls downward due to its own weight while moving upward and is transferred to the conveyor 2.
It accumulates above 0.

In addition, by providing the air supply port 46 near the attachment part of the separation conduit 38, the air flow assists the suction of the single fibers 1 and works to suppress floating of the heavy unfiltered fibers 11 onto the conveyor 20. hasten the descent to.

Therefore, the single fibers 1 can be separated very easily, and when the main roller 4 is in a good state of defibration, the opening degree of the suction adjustment port 45 can be narrowed to quickly separate and collect the single fibers 1. I can do it.

In addition, a separation conduit 38 and an air supply port 46 are provided to
By separating and collecting the air, the flow direction of the airflow due to the airflow action of the main roller 4 is always stabilized, and the atmosphere inside the separation chamber 18 can be made favorable and the separation effect can be enhanced.

Next, the single fiber l sucked into the separation conduit 38 is transferred to the conduit 40.
The fibers are then fed into the discharge conduit 41 by the fan 39, further fed into the duct 29 provided below the main roller 4, mixed with the single fibers 11 re-defibrated by the sub-supply section B, and discharged from the discharge port 30. and transferred to the next process.

Note that the above-mentioned discharge conduit 41 is connected from the inlet 42 side to the outlet 43.
Since it is formed into a nozzle shape that gradually narrows toward the side, the air mixed with the single fibers 1 sent by the fan 39 is jetted out at a high speed from the outlet 43, and the air is blown against the lower surface of the main roller 4, and is then fed into the sub-supply section B. The single fibers l caught on the tips of the teeth of the wire 6 are defibrated and the single fibers l caught on the teeth of the wire 6 are actively separated and air is sent to the discharge port 30.

In the above-described embodiment, the separated single fibers 1 are discharged by the fan 39 through the discharge conduit 41 and the duct 29, but the present invention is not limited to this, and the separated single fibers 1 may be separately led out from the conduit 40. good.

Furthermore, the movable guiding plate 35 may be a conveyor-like guiding mechanism 35' that rotates as shown in FIG. 5, in which case it is possible to prevent single fibers from accumulating on the upper part.

Further, although the separation conduit 38 is shown standing upright on the ceiling of the separation chamber 18, the present invention is not limited thereto.

Now, as mentioned above, the device of the present invention includes: (a) a main roller around which a wire is wound and rotatably supported;
A main roller portion is provided in which a plurality of gripping auxiliary rollers are arranged close to each other along the rotational direction of the main roller.

(b) A main supply section is provided that is close to the main roller section and consists of a pair of gripping rollers and a conveyor that grips the workpiece and sends it to the main roller section.

(c) An auxiliary supply section is provided at a different angle from the main supply section, and consists of a pair of gripping rollers and a conveyor, or a gripping roller, a dish plate, and a conveyor, at a required location on the circumference of the main roller.

B) A separation chamber is provided above the sub-supply section to collect the waste fibers subjected to the defibration action by the main roller section.

(e) A movable guide plate is provided that is close to the main roller and above the sub-supply section and extends to the separation chamber.

(f) A separation and discharge circuit is provided, one open end of which communicates with the ceiling of the separation chamber, the other open end of which communicates with a waste fiber discharge duct below the main roller, and in which a blower is interposed. .

(g) The main roller applies a defibrating action to the workpiece sent out from the main supply section, the disintegrated fibers are discharged to the separation chamber side, and the heavy unfinished fibers are again subjected to the defibrating action through the sub-supply section. The main roller supplies the light filaments secondarily, while the light single fibers floating in the separation chamber are separated by conduction into the separation and discharge circuit.

The requirements are as follows (a) to (g) above, especially in)
.

With the configurations (e) and (f), the atmosphere inside the separation chamber, that is, the flow direction of the main roller's airflow action, can be maintained in a stable state at all times, and the separation effect of the light fibrillated single fibers can be enhanced. In addition, the single fibers are taken out of the machine and pneumatically fed directly to the next process, reducing the defibrating load on the main roller by the sub-supply section. It is possible to prevent the tip from becoming shorter.

In addition, in the above-mentioned pneumatic feeding process of the separated single fibers, it has many effects such as effectively separating the single fibers defibrated by the main roller from the sub-supply section, efficiently defibrating and separating the workpieces, and functions as a regenerated fiber device. There are some areas that can contribute significantly to improvement.

[Brief explanation of drawings]

Fig. 1 is a schematic side sectional view of the initial invention, Figs. 2 to 5 show an embodiment of the present invention, Fig. 2 is a schematic side sectional view, and Fig. 3 is a partially enlarged view of the main roller section. FIG. 4 is an enlarged explanatory view of the separation chamber and the separation conduit, and FIG. 5 is a partially sectional view showing the movable induction plate tilted on its side. 4... Main roller, 9... Supply conveyor, 10° 11. 12, 13, 24... Gripping roller, 18... Separation chamber, 25. ...Dish plate, 31°32.39...Gripping auxiliary roller, 35...Movable guide plate, 38...
Separation conduit, 39...Fan, 40...
Conduit, 41... Discharge conduit, 45... Suction adjustment port, 46... Air supply port, A... Main supply section, B... ...Sub-supply section, l...Light monofilament, 11...Heavy non-monofilament, W...
·work.

Claims (1)

[Claims] 1. A main roller wound with a wire and rotatably supported, a main roller section including a plurality of gripping auxiliary rollers arranged close to each other along the rotational direction of the main roller, and a main roller section that grips a workpiece in close proximity to the main roller section. a main supply section consisting of a pair of gripping rollers and a conveyor, which feed the main rollers to the main roller section; a sub-supply section consisting of a roller, a dish plate, and a conveyor; a separation chamber above the sub-supply section that collects waste fibers that have been defibrated by the main roller section; and a separation chamber that is close to the main roller and a movable guide plate located above the sub-supply section and extending to the separation chamber; one open end communicating with the ceiling of the separation chamber; the other open end communicating with the waste fibers below the main roller; Consists of a separate discharge circuit that communicates with the discharge duct and is equipped with a blower.
The main roller applies a defibrating action to the work sent out from the main supply section, and the disintegrated fibers are discharged to the separation chamber side, and the heavy unfinished fibers are subjected to the defibrating action again by the sub supply section. What is claimed is: 1. A regenerated fiber manufacturing apparatus characterized in that it is configured so that light single fibers floating in a separation chamber can be guided and separated into a separation and discharge circuit while being supplied as a secondary source.