JP2844933B2 - Cotton collecting device for roving machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cotton collecting device for a roving yarn changer, and more particularly, to a bobbin during spinning suspended on a bobbin hanger of a creel of a spinning frame and a spare rail in front of the creel. The roving yarn replacement operation for replacing the full bobbin that has been performed is performed by moving from one end of the spinning machine table to the other end along the longitudinal direction of the spinning machine, and the roving from the full bobbin during the roving yarn replacement operation is performed. The present invention relates to a cotton collecting device of a roving yarn changer for performing a roving yarn discharging operation for discharging a yarn end using a suction pipe.

[0002]

2. Description of the Related Art In a spinning machine, especially a ring spinning machine, a roving yarn is drawn from a roving wound on a creel and supplied to a draft part below. As the supply of roving to the draft part progresses and the roving becomes empty or nears empty, it is necessary to replace it with a new roving. At that time, it is necessary to splice the roving end of the roving winding to be newly replaced with the roving being spun or to insert the roving of the roving winding again into the draft part of the spinning machine. .

In order to save labor in the spinning process, there has been proposed a roving yarn changing machine (shino changing machine) for sequentially performing the roving splicing operation and the roving yarn changing operation from one end of a spinning machine stand (Japanese Patent Laid-Open No. Sho 62-62). 5
No. 7957, etc.). In this type of roving changer, a roving end is drawn out from a full bobbin (preliminary roving winding) for replacement by a suction action, and then the roving end is spun by a roving splicing device. Perform the work of splicing to the roving in the middle. At that time, in order to make the length of the roving end protruding from the holding portion of the roving splicing device substantially constant, a part of the roving yarn that has been spouted out is cut, and a cotton collection box equipped with a roving yarn changer. (A cotton collection room), and when the cotton collection box is full of rovings, an operator manually removes the rovings from the cotton collection box.

However, in spinning factories, there is a demand for a small roving yarn changing machine because many spinning machines are installed in a small space, and the volume of a cotton collection box provided in the roving yarn changing machine is small. When the roving is performed by one roving machine, the roving yarn is supplied to the spinning machine. It is full, and the number of times that the worker takes out the roving from the cotton collecting box is increased, resulting in a problem that the working efficiency is reduced.

In order to solve this problem, Japanese Utility Model Application Laid-Open No. 2-699.
No. 75, as shown in FIGS. 14 (a) and (b),
A device provided with a pressing device 51 capable of compressing a roving (fiber) housed in a filter box 50 has been proposed.
The pressing device 51 includes an air cylinder 52 and a pressing plate 53 fixed to the tip of a piston rod 52a. Then, as shown in FIG. 14A, when the air cylinder 52 is operated in a state where a large amount of fibers are stored in the storage chamber 55 of the filter box 50, the pressing plate 53 is pushed down along the filter 54, and FIG. The roving is compressed as shown in FIG. Therefore, the amount of fibers stored in the storage chamber 55 can be significantly increased.

[0006]

SUMMARY OF THE INVENTION
The device disclosed in Japanese Patent No. 75 is configured to operate the pressing plate 53 by the air cylinder 52, and thus the filter box 50
It is necessary to secure a place where an air cylinder longer than the stroke of the pressing plate 53 is disposed outside the air cylinder. However, it is difficult for the roving yarn changer to secure a space for disposing a long air cylinder with a complicated mechanism, and as a result, there is a problem that the entire roving yarn changing device becomes large. If the pressing plate 53 is configured to move without contacting the filter 54, it is difficult to remove the fibers attached to the filter 54. Therefore, the fibers are compressed to expand the accommodation space of the accommodation chamber 55. Also, the suction effect of the blower (not shown) on the storage chamber 55 is reduced. On the other hand, if the pressing plate 53 is configured to move while being in contact with the filter 54, the fibers adhering to the filter 54 are scraped off to prevent a decrease in the suction effect. In this case, however, the pressing plate 53 and the filter 54 However, there is a problem that is worn by friction.

In general, fibers recovered from the inside of the filter box are mixed with raw cotton in a blended cotton process and reused. When the recovered fiber is mixed with raw cotton and reused,
If the roving is applied to a blending cotton wool in a state where the roving has not been spread, there is a problem that the roving is wound around the opening roller. Therefore, when storing the roving in the filter box, it is necessary to store the roving in an opened state. When a roving yarn changing machine is used to extract an end of a roving from a full bobbin, the roving is subjected to a suction action while one end of the roving is restrained. If the suction acting on the suction pipe is large, the roving is accommodated in the filter box in an opened state. On the other hand, when the suction action is small, the roving is stored in the filter box in an unspread state.

Further, the operation of collecting roving from the inside of the filter box is disadvantageous in that, especially in the case of roving such as 100% cotton containing a large amount of short fibers, a large amount of scattered fibers are generated and the working environment is not good. Therefore, it is desirable that the fibers contained in the filter box be automatically discharged to a centralized cotton collection duct instead of being manually removed. However, when the fibers are mechanically compressed as in the above-described conventional apparatus, there is a problem that it is difficult to automatically discharge the fibers to the centralized cotton collecting duct and to transport the fibers by an air flow.

[0009] When the fiber (roving) contained in the filter box is transported to the cotton mixing step by a centralized cotton collecting duct,
The unspread roving is apt to be caught on the connecting portion of the inner wall of the duct. Further, an axial fan is generally used as a means for generating a transport airflow in the concentrated cotton collecting duct, but there is a problem that unopened roving is wound around the axis of the axial fan.
Even if it is conveyed smoothly to the cotton blending step, there is a problem that it is wound around the opening roller as described above.

The present invention has been made in view of the above problems, and a first object of the present invention is to mix fibers (rovings) collected in a filter box provided in a roving yarn changer with raw cotton. When re-used, it can be collected in an open state that does not hinder the work in the cotton blending process.Furthermore, there is no consumables such as filters due to friction, and it is possible to prevent a decrease in roving suction efficiency. It is an object of the present invention to provide a cotton collecting device for a roving yarn changer having a large degree of freedom. It is a second object of the present invention to provide a cotton collecting device of a roving yarn changer which can completely automatically recover a roving from a filter box in addition to the above-mentioned effects.

[0011]

In order to achieve the first object, in the present invention, a spinning bobbin suspended on a bobbin hanger of a creel of a spinning machine and a bobbin suspended on a spare rail in front of the creel are provided. Using a suction pipe equipped with a suction nozzle and a roving yarn replacement operation to replace the full bobbin
A roving yarn picking operation for picking out the roving end from a full bobbin
Along the length of the spinning frame, from one end of the spinning frame to the other
In Soitokawa machine performed by moving toward it, the roving exchange machine
The filter is divided into an intake chamber and a cotton collection chamber by a filter.
When the filter box and the roving yarn are taken out,
Suction means for generating suction force in the roving suction pipe by applying pressure
And the roving yarn in the cotton collecting chamber of the filter box.
Connect the suction pipe for outlet, and
Active air flow toward the filter near the filter end
Air collecting means comprising a nozzle for jetting
And the air flow generating means is provided with
It is configured to operate when the suction operation of the pulling means is stopped.

According to a second aspect of the present invention, there is provided a cotton collecting device for a roving yarn changer according to the first aspect.
The outside of the cotton box of the filter box
Communication means that can communicate with the
After the completion, a separate cotton collection room is set up in the transporter that transports the roving changer,
The truck was recovered from the filter box fibers contained in said filter box through said communication means
A collection and discharge means for discharging to the cotton collecting room was provided.

[0013]

According to the present invention, unnecessary roving ends generated in the roving operation at the roving operation are accommodated in a filter box mounted on the roving device. The roving is subjected to the suction action of the suction pipe in a state where one end is restrained during the spouting operation. The inside of the filter box becomes negative pressure by the action of the suction means, and generates a suction force in the suction pipe. Fibers attached to the filter box filters, the suction hand
When the suction action of the stage is stopped, the air flow
By actively injecting the stream, it is removed from the filter. Then, the negative pressure in the filter box is always maintained at a certain pressure or higher, and a suction force sufficient to open the roving is always applied to the suction pipe. Therefore, the roving is accommodated in the filter box in an opened state.

[0014] Also in the second aspect of the present invention, the roving is accommodated in the filter box in a state of being opened in the same manner as described above. Fiber contained in filter box
By the collection and discharge means, the roving
Communication means to the cotton collection room provided in the transport vehicle
Is discharged through.

[0015]

(Embodiment 1) Hereinafter, the first embodiment of the present invention will be described.
An embodiment will be described with reference to FIGS. As shown in FIG. 3, two rows of inner and outer roving winding rails 3 are arranged on the creel 2 of the spinning frame 1 on both the left and right sides of the spinning frame, respectively, in parallel with the longitudinal direction of the frame. A creel rail 4 is disposed in parallel with the machine base longitudinal direction. Each of the roving winding rails 3 is provided with a bobbin hanger 5 at a predetermined interval which is twice the spindle pitch, and a roving thread R drawn from a roving bobbin B suspended on the bobbin hanger 5 passes through a roving guide 6 to a trumpet of a draft part 7. 8. A support bracket 9 extends outward from the creel 2, and a spare rail 10
Extend in parallel with the roving winding rail 3. A carrier 11 provided with a bobbin hanger 11a is movably supported on the spare rail 10.

The roving yarn changer 12 is mounted on the left and right sides of a transport vehicle 13 which moves in a direction orthogonal to the longitudinal direction at the end of the spinning machine 1, and corresponds to the spinning machine 1 which needs roving yarn changing work. It is transported to a position, and at that position, it moves along a rail 14 extending on both the left and right sides of the spinning machine 1 to perform a roving yarn replacement operation and a roving yarn splicing operation. The roving yarn changer 12 is equipped with a roving yarn discharging device for discharging the roving end from the full bobbin F during the roving yarn changing operation.

The roving device is provided with a filter box 15 provided below the roving yarn changer 12, a suction pipe 16 having a base end connected to the filter box 15, and a side nozzle 16a at the tip thereof. The suction pipe 17 includes a pair of suction nozzles 17 attached thereto, and a blower 18 as suction means for generating a suction force in the suction pipe 16 by applying a negative pressure to the inside of the filter box 15. Blower 1
8 includes a motor 19 and an intake fan 20 driven by the motor 19. Inside the suction nozzle 17, a roving yarn cutting member (not shown) having a known configuration (for example, Japanese Patent Publication No. 47-51649) for cutting the roving yarn R sucked into the suction nozzle 17 is provided. I have. And
The suction nozzle 17 is moved by the full bobbin elevating device 21 to the carrier 1.
The roving yarn splicing device (not shown) grips the roving yarn R removed from the bobbin hanger 11a and disposed at the roving yarn discharging operation position corresponding to the lower end of the full bobbin F, and the roving yarn R sucked from the full bobbin F. The drive mechanism (not shown) is moved and arranged to be moved to a lowered position for pulling out to a position where it is easy to perform.

The filter box 15 is divided by a filter 22 into an intake chamber 23 in which the intake fan 20 is disposed, and a cotton collecting chamber 24 to which the suction pipe 16 is connected. Near the front end of the upper wall of the filter box 15, a discharge pipe 25 as communication means for connecting the filter box 15 to the outside is provided in communication with the cotton collection chamber 24. The discharge pipe 25 extends vertically and is provided with its tip protruding from the upper surface of the end of the roving yarn changer 12. The discharge pipe 25 has an upper opening, and a shutter (not shown) that can be opened only to the discharge pipe 25 side is provided at a base end of the discharge pipe 25.
The suction action by the zero does not act on the discharge pipe 25.

On the upper wall of the filter box 15, there is provided a cleaning nozzle 26 as an air flow generating means for generating an air flow for removing the fibers adhering to the filter 22 from the filter 22. It is arranged so as to protrude into the cotton collecting chamber 24 near the upper end. Further, on the front wall of the filter box 15, discharge auxiliary nozzles 27 and 28 are disposed at positions near the base end of the discharge pipe 25 and near the lower portion, respectively, in such a manner as to be directed to the base end of the discharge pipe 25. Each of the nozzles 26, 27,
28 may be one or more. Each nozzle 26, 27,
Reference numeral 28 denotes an air compressor 29 mounted on the roving yarn changer 12.
Are connected via a pipe 30 and a control valve 31. The control valve 31 supplies the compressed air of the air compressor 29 to each of the nozzles 26, 27, 28 according to a command from a control device (not shown).

Above the end on the gear end (GE) side of the spinning frame 1, there is provided a concentrated cotton collecting duct 32 which leads to a mixed cotton baking process. A suction removing pipe 33 as a collecting and discharging means is connected to the centralized cotton collecting duct 32 at a position corresponding to the discharging pipe 25 when the roving yarn changer 12 is mounted on the transport vehicle 13. The suction removal pipe 33 has a bellows part 33a on the way.
Is provided, and a valve 34 is provided near the upper end. An air cylinder 35 is provided at a position corresponding to the suction / removal pipe 33 so as to extend in the vertical direction via a bracket 36, and the lower end of the suction / removal pipe 33 is inserted into the tip of a piston rod 37. The supporting bracket 38 is fixed. The expansion and contraction of the piston rod 37 causes the suction / removal pipe 33 to move to a position where it can be connected to the discharge pipe 25 and to a position separated from the discharge pipe 25. Valve 34
Is always closed, and the piston rod 37 of the air cylinder 35 is held in the retracted state.

Next, the operation of the apparatus configured as described above will be described. The roving yarn changer 12 is mounted on the left and right sides of the transport vehicle 13 and is transported to a position corresponding to the spinning machine 1 requiring the roving yarn replacing operation, and moves from the transport vehicle 13 to the spinning machine 1 side at the position. It moves along the rails 14 extending on both left and right sides of the spinning machine 1 to sequentially perform roving yarn changing operation and roving yarn joining operation.

At the time of the roving suction operation, the blower 18 is operated, and the inside of the filter box 15 becomes a negative pressure by the action to generate a suction force on the suction pipe 16. In this state, as shown in FIG.
The bobbin 7 is moved to a tapping position corresponding to the lower end of the full bobbin F, and the bobbin is rotated by a full bobbin rotating device (not shown) to suck and discharge the end of the roving thread R from the full bobbin F. The roving thread R is sucked by the suction nozzle 17 and is subjected to the suction action of the suction pipe 16 in a state where one end is restricted. When the roving R subjected to the suction action is opened in a state where one end is restrained,
Depending on the strength of the negative pressure in the filter box 15, the location where the roving yarn R is opened changes. When the negative pressure in the filter box 15 is strong, the place where the roving yarn R is opened is slightly deeper than the entrance of the suction nozzle 17, and the roving yarn R is
Is stored in a state where it is almost completely opened. When the negative pressure is moderate, the place where the roving yarn R is spread is in the side nozzle 16a. In this state, when the end of the roving yarn R is cut by the roving cutting member, the portion existing from the cut end to the side nozzle 16a is in an unspread state. However, even if there are some unopened portions of such a length, they do not hinder the blending cotton process. When the negative pressure is weak, the place where the roving yarn R is opened is in the suction pipe 16 or is stored in the cotton collection chamber 24 without being opened.

Some of the fibers that have been opened and accommodated in the cotton collection chamber 24 adhere to the filter 22 by the action of the intake fan 20. Then, as shown in FIG. 4, when the amount of fibers adhering to the filter 22 increases, the negative pressure in the filter box 15 decreases, and the roving yarn R sucked from the suction nozzle 17 is not opened, and the cotton collecting chamber is not opened. 24. But,
In this device, the fibers adhering to the filter 22 are separated from the filter 22 by the action of the compressed air flow injected from the nozzle 26 as shown in FIG. Then, the negative pressure in the filter box 15 is always kept at a certain value or more, and the roving R
Is opened in the suction nozzle 17 or the side nozzle 16a, and the roving R is opened in a state that does not hinder reuse in the blending cotton step, and is accommodated in the cotton collecting chamber 24. Nozzle 26
Injection of compressed air from the blower is performed with the blower stopped, and is performed every time roving is replaced, that is, every time the roving end is sucked from the suction nozzle 17, or depending on the nature of the roving, the number of roving replacements is counted by a counter. It may be performed every predetermined number of times. or,
The compressed air may be injected continuously or intermittently, and the injection time is set by a variable timer or the like.

After the roving yarn changing operation is completed, when the roving yarn changing machine 12 returns to the position corresponding to the carrier 13 waiting at the gear end GE side of the spinning frame 1, the air cylinder 35 is operated to move the piston rod 37. The suction removal pipe 33 protrudes and is connected to the discharge pipe 25 as shown in FIG. When the valve 34 is opened in this state, the suction action of the centralized cotton collection duct 32 reaches the inside of the filter box 15 via the suction removal pipe 33 and the discharge pipe 25. Then, by the suction action of the centralized cotton collection duct 32, the opened roving in the cotton collection chamber 24 is discharged to the discharge pipe 25 and the suction removal pipe 33.
Is removed by suction. Then, the roving yarn R is conveyed by the centralized cotton collecting duct 32 to the mixed cotton baking process and reused. The opening and closing of the valve 34 may be performed intermittently and sent several times to prevent clogging of the duct.

When the fibers contained in the cotton collecting chamber 24 are discharged, compressed air is ejected from the discharge auxiliary nozzles 27 and 28 to assist the discharge of the fibers. The injection of the compressed air may be continuous or intermittent. Even if the discharge auxiliary nozzles 27 and 28 are operated at the same time, the discharge auxiliary nozzle 27 closer to the discharge pipe 25 is operated first, and the discharge auxiliary nozzle 28 farther from the discharge pipe 25 is operated after a predetermined time. Good. In addition, not only the two discharge auxiliary nozzles 27 and 28,
The cleaning nozzle 26 may be operated. By operating the nozzle 26, the fibers attached to the filter 22 are also discharged from the discharge pipe 25.

After a predetermined time (several seconds) required for discharging the fibers stored in the cotton collection chamber 24 after the suction removal pipe 33 is connected to the discharge pipe 25, the valve 34 is closed and the air cylinder 35 is closed. When activated, the piston rod 37 is retracted, and the suction removal pipe 33 and the discharge pipe 2
The connection with 5 is released. Then, the roving yarn changing machine 12 is transported by the transport vehicle 13 to a position corresponding to the spinning machine 1 requiring the roving yarn changing operation, and the same operation is repeated.

In this embodiment, each time the roving yarn changing machine 12 completes the roving changing operation of one spinning machine 1, the filter box 15
The roving after the opening is automatically removed by suction. Therefore,
The amount of roving after opening accommodated in the filter box 15 becomes less than a certain amount, the amount of fibers adhering to the filter 22 decreases, and the suction force (air volume and static pressure (negative pressure)) by the intake fan 20 decreases. The suction action does not drop so much and the suction action is stabilized, thereby preventing a suction error during the tapping operation.

(Embodiment 2) Next, a second embodiment will be described with reference to FIGS.
It will be described according to. In this embodiment, the configuration of the cotton collecting chamber 24 is different from that of the above-described embodiment. That is, near the filter 22 in the upper part of the cotton collecting chamber 24, the partition plate 39 is hung from the upper wall of the filter box 15 slightly toward the discharge pipe 25 from the base end of the suction pipe 16. The cleaning nozzle 26 is mounted on the filter box 1 in the same manner as in the previous embodiment.
5 on the upper wall. Also, the discharge auxiliary nozzle 27,
Instead of providing 28, a pair of auxiliary nozzles 40 are provided on both side walls of the filter box 15. Both auxiliary nozzles 40 are arranged such that the jet airflow blows the fibers in the cotton collection chamber 24 to the inner side of the cotton collection chamber 24 (the side opposite to the filter 22).

In the apparatus of this embodiment, the fibers adhering to the filter 22 are removed by the action of the compressed air injected from the cleaning nozzle 26 in the same manner as in the previous embodiment.
Peeled off. Further, by the action of the compressed air injected from the auxiliary nozzle 40, the fibers present in the vicinity of the filter 22 are blown toward the back of the cotton collection chamber 24 (the side opposite to the filter 22). When the fibers are stored in the cotton collection chamber 24 to a certain extent or more, the presence of the partition plate 39 allows
The fiber that has moved to the back side of the cotton collection chamber 24 is suppressed from moving to the filter 22 side again. Cleaning nozzle 26
The ejection timing of the auxiliary nozzle 40 and the auxiliary nozzle 40 may be the same, but first, the cleaning nozzle 26 is ejected to peel the fiber from the filter 22, and then the auxiliary nozzle 40
It is more effective to move the fibers to the back side by injecting the fibers. Also, when discharging the fibers stored in the cotton collection chamber 24,
Compressed air is jetted from the cleaning nozzle 26 and the auxiliary nozzle 40 to assist in discharging the fibers.

(Embodiment 3) Next, a third embodiment will be described with reference to FIGS.
It will be described according to. This embodiment differs greatly from the previous embodiments in that a rotary impeller 41 is disposed in the cotton collecting chamber 24 at a position corresponding to the base end of the discharge pipe 25.
The rotating impeller 41 includes a support shaft 43 rotatably supported on the filter box 15 via a bearing 42, and a plurality of rotating shafts 41 (four in this embodiment) fixed along the longitudinal direction on the peripheral surface thereof.
) Blades 44. A motor 45 is attached to the outside of the filter box 15 via a bracket, and the support shaft 43 is connected to a drive shaft of the motor 45 via a coupling 46. The auxiliary nozzle 40 is provided on the bottom wall of the filter box 15.

In this embodiment, the fibers attached to the filter 22 are removed in the same manner as in the first embodiment. On the other hand, when discharging the fibers stored in the cotton collecting chamber 24, the rotary impeller 41 is rotated. Therefore, the fiber moving toward the base end of the discharge pipe 25 engages with the rotary impeller 41 and rotates by the action of the suction force of the concentrated cotton collecting duct 32 and the compressed air injected from the auxiliary nozzle 40. By the action of the blades 44, the blades 44 are sequentially guided to the inlet of the discharge pipe 25. A large amount of fibers existing in the cotton collection chamber 24 are uniformly discharged to the discharge pipe 25.
When the vehicle enters the entrance, the discharge pipe 25 may be clogged. However, in this embodiment, the feed amount of the fiber is controlled by the action of the rotary impeller 41, and there is no possibility that the discharge pipe 25 is clogged. The rotation of the rotary impeller 41 may be continuous or intermittent. Further, the rotation direction may be changed on the way.

(Embodiment 4) Next, a fourth embodiment will be described with reference to FIG. In this embodiment, the cleaning nozzle 2
6 is different from the above embodiments. The cleaning nozzle 26 is provided on the upper wall of the filter box 15 on the back side of the filter 22 (on the side opposite to the side facing the cotton collection chamber 24).
And the compressed air is injected into the cotton collection chamber 24. Therefore, in this embodiment, the filter 2
The fibers adhering to the surface of the cleaning nozzle 26
As a result of the action of the jet air flow from the first embodiment, it becomes easier to peel off than in the case of each of the above embodiments.

(Embodiment 5) Next, a fifth embodiment will be described with reference to FIG. This embodiment is significantly different from the above embodiments in that a blower fan 47 is provided instead of injecting compressed air as an airflow generating means. The intake chamber 23 partitioned by the filter 22 is formed larger than in the above-described embodiments, and the blower fan 47 is provided above the intake chamber 23. When the blower fan 47 is driven, the intake chamber 23
An airflow is generated from the side through the filter 22 and into the cotton collecting chamber 24. The fibers attached to the surface of the filter 22 are separated from the filter 22 by the action of the air flow. Further, by driving the blower fan 47 at the time of discharging the fibers in the cotton collecting chamber 24, the discharge of the fibers is assisted.

Embodiment 6 Next, a sixth embodiment will be described with reference to FIG. In this embodiment, instead of providing the cleaning nozzle 26 or the blower fan 47 as the air flow generating means, the motor 19 of the blower 18 provided in the filter box 15 can be rotated forward and reverse, and the blower 18 can be used as the air flow generating means. The point of use is significantly different from the above embodiments. In this embodiment, the motor 19 is normally driven to rotate in the normal direction, and is driven to rotate in the reverse direction when removing the fibers attached to the surface of the filter 22. The reverse rotation of the motor 19 causes the intake fan 20 to rotate in the reverse direction, and an airflow is generated from the back side of the filter 22 into the cotton collecting chamber 24 as shown in FIG. The fibers adhering to the surface of the filter 22 are peeled off from the filter 22 by the action of the airflow, and are moved toward the back of the cotton collection chamber 24. Since the airflow from the intake fan 20 is stronger than the airflow from the blower fan 47, the cotton collection chamber 2
The fibers in 4 are blown to the back of the cotton collection chamber 24. Therefore, the amount of fibers accommodated in the cotton collection chamber 24 can be increased, and the number of times of discharging fibers can be reduced.
Also, when the intake fan 20 is rotated in reverse when the fibers in the cotton collecting chamber 24 are discharged, the fibers in the cotton collecting chamber 24 move closer to the discharge pipe 25 as shown in FIG. Squirting
It is gathered and the discharge of fiber is assisted. That is, in the apparatus of this embodiment, the motor 19 of the blower 18 only needs to be a motor capable of rotating forward and reverse, so that it is not necessary to newly secure an extra space for installing the airflow generating means. Although fibers Atsumariwatashitsu 24 is closer to the back side of the Atsumariwatashitsu 24 by the action of the air flow, not hard because not than Ru is asked by a mechanical force, to give trouble to a centralized collection cotton Absent.

It should be noted that the present invention is not limited to the above embodiments, and may be configured by a combination of the embodiments.
In addition, as shown in FIG.
May be formed. In this case, the air flows into the suction nozzle 17 from the hole 48, so that the flow rate increases downstream of the hole 48. Since the cross-sectional areas of the pipes of the suction nozzle 17 are the same, the flow velocity is increased as a result. When the roving end pulled out from the full bobbin F and sucked by the suction nozzle 17 reaches a portion where the flow velocity changes, the roving end receives a force to sequentially pull out the fibers at the roving end by an air current at the portion, and the fiber is opened. Is done. The number, position, size, and the like of the holes 48 can be arbitrarily changed.
Also, an appropriate number of sets of light transmitting and receiving parts of the transmission type photoelectric sensor are provided on the upper and lower or both right and left walls of the filter box 15 corresponding to the cotton collecting chamber 24, and the amount of the fiber stored in the cotton collecting chamber 24 is reduced. It may be configured to detect and output a discharge command signal or a discharge completion signal. Further, another sensor may be provided for detecting the fiber amount.

There are various methods for recovering the fibers contained in the filter box 15 other than the above-described embodiment. For example, the discharge pipe 25 of the roving yarn changer 12 is configured to be extendable and contractible, and the suction and removal pipe 33 side is fixed at a predetermined position, or a centralized collection for a pneumatic box mounted on the spinning machine 1 as a centralized cotton collection duct. Use a cotton duct and branch the suction removal pipe from the centralized cotton collection duct,
Instead of providing the suction and removal pipes 33 and the like for each spinning machine, one suction and removal pipe 33 may be provided for a plurality of spinning machines. Also, instead of directly sucking and removing the roving yarn contained in the cotton collecting chamber 24 to the centralized cotton collecting duct 32 via the suction removing pipe 33 or the like, the roving yarn is collected in a pneumatic box as an intake source of a pneumatic clearer of the spinning machine. The fiber in the cotton room 24 is discharged,
3 or another cotton collecting chamber is provided at the end of the spinning machine. After the fibers in the cotton collecting chamber 24 of the filter box 15 are discharged into the cotton collecting chamber, the fibers in the separate cotton collecting chamber are concentrated in the cotton collecting duct. May be suction-removed by a suction-removal pipe connected to the suction port. Further, the fibers in the cotton collecting chamber 24 or another cotton collecting chamber may be taken out by an operator.

[0037]

As described above in detail, according to the present invention, the broken pieces of the roving yarn are stored in the filter box provided in the roving yarn changing machine.
When collecting waste, mix the scraps with raw cotton and reuse
When the fiber is opened, it can be recovered in a state where it does not hinder the operation in the cotton blending process. In addition, there is no consumable due to friction, and the degree of freedom of the installation location is increased.

According to the second aspect of the invention, in addition to the above-described effects, the operation of collecting the roving from the filter box can be performed completely automatically, and the roving can be collected by the operator. Eliminates work and saves labor.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a first embodiment.

FIG. 2 is a schematic plan view of the first embodiment.

FIG. 3 is a schematic rear view of the first embodiment.

FIG. 4 is a schematic side view showing the operation of the first embodiment.

FIG. 5 is a schematic side view of a main part showing the operation of the first embodiment.

FIG. 6 is a schematic side view of a main part showing the operation of the second embodiment.

7A is a schematic plan sectional view of the filter box, and FIG. 7B is a sectional view taken along line XX of FIG. 7A.

FIG. 8 is a schematic side view of a main part of a third embodiment.

FIG. 9 is a sectional view of a third embodiment.

FIG. 10 is a schematic side view of a main part of a fourth embodiment.

FIG. 11 is a schematic side view of a main part of a fifth embodiment.

FIG. 12 is a schematic side view of a main part showing the operation of the sixth embodiment.

FIG. 13 is a sectional view of a main part of a modified example.

FIG. 14 is a sectional view of a conventional device.

[Description of Signs] 1 ... spinning machine, 2 ... creel, 5 ... bobbin hanger, 10 ...
Preliminary rail 12 ... roving exchange machine, 13 ... truck, 15 ... filter box, 16 ... suction pipe, 17 ... suction nozzle, 18 ... blower as a suction means, 22 ... filter, exhaust pipe as 25 ... communicating means , 26 ... cleaning nozzle as an air flow generating means, 4 7 ... blowing fan as an air flow generating means, F ... full bobbin, R ... rovings.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) D01H 11/00 D01H 9/04

Claims (2)

(57) [Claims] 1. A roving yarn changing operation for replacing a bobbin being spun on a bobbin hanger of a creel of a spinning machine with a full bobbin suspended on a spare rail in front of the creel.
And a full bobbin using a suction pipe with a suction nozzle
Of the roving yarn from the spinning machine.
From one end of the spinning frame to the other along the longitudinal direction
In the roving yarn changing machine which is moved and moved, the roving yarn changing device is divided into an intake chamber and a cotton collecting room by a filter.
Filter box and the filter
Negative pressure inside the box and generate suction force on the roving suction pipe.
And a suction means for causing
Is connected to the suction pipe for tapping the roving yarn, and the
Product near the filter end of the
Air flow generating means comprising a nozzle for injecting air flow extremely
Is disposed in a state protruding into the cotton collection chamber, and the air flow is generated.
Means for operating when the suction operation of the suction means is stopped.
Cotton collecting device of roving yarn changer configured in 2. A cotton collecting device for a roving yarn changer according to claim 1.
And the outside of the cotton box of the filter box can be connected to the outside.
Communication means are provided, and
Provided another dust collecting chamber cart carrying the yarn exchange unit, wherein the contained fibers in the filter box and recovered from the filter box through the communication means the truck collecting cotton chamber <br / > A cotton collecting device of a roving yarn changer equipped with a collecting and discharging means for discharging to