JP2558806B2 - Spinner dust processing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a dust processing method for a spinning machine, and more specifically, to dust such as cotton wool generated from a plurality of spinning machine stands arranged in parallel. The present invention relates to a dust processing method in a spinning machine for surely collecting the cotton collection devices having a suction action provided in common.

(Prior Art) Conventionally, as a dust processing device for collecting dust such as fly dust generated in a plurality of spinning machine stands arranged in a common cotton collecting device as shown in FIG. It is disclosed in the official gazette. In this device, main ducts 2 are arranged on the sides of a plurality of roving frames 1 arranged side by side in a state orthogonal to the machine longitudinal direction, and a blower (not shown) is used as an intake source at one end thereof. It is connected to the provided cotton collecting device 3.
On each roving machine base 1, a cleaning device provided with a net 4 for preventing dust and the like from accumulating on the flyer support rail is extended along the longitudinal direction of the machine base, and at the end of the machine base, a main cleaning device is provided. A duct 6 having a diaphragm 5 that communicates with the duct 2 and opens and closes the communication portion is provided. Further, the roving machine base 1 is provided with a scraper 7 which is reciprocally movable along the net 4 and scrapes dust from the net 4 when moving toward the duct 6. Dust is collected in the duct 6 by the action of the scraper 7, and the diaphragm 5 of each machine base is sequentially contracted by the action of the rotary valve 8 which is operated every predetermined time, and the dust collected in the duct 6 is collected. Collected in 3.

(Problems to be Solved by the Invention) However, in the conventional device, the movement of the scraper 7 provided in each machine base and the contraction timing of the diaphragm 5, that is, the timing at which the suction action of the main duct 2 acts on the duct 6 are synchronized. Therefore, the dust scraped off from the net 4 by the reciprocation of the scraper 7 and carried to the position corresponding to the duct 6 does not leave the scraper 7, and remains attached to the scraper when the scraper 7 is returned. It was sometimes transported to the other end of the, and the suction of dust was not reliable.

The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to reliably remove dust carried by a scraper to a position corresponding to a duct from a scraper of a spinning machine. To provide a method.

(Means for Solving the Problems) In order to achieve the above object, in the present invention, a duct is provided at the end of each spinning machine stand arranged in parallel, and the duct is reciprocally moved along the machine stand longitudinal direction. In a spinning machine that has a scraper that collects dust inside, connects each duct to the main duct that is connected to a cotton collecting device that has a suction action, and has an opening and closing device that opens and closes the communication part, always close each opening and closing device. When the scraper is held in a state and is moved to a position corresponding to the duct, the scraper is made to stand by at that position, and in that state, the opening / closing device of the duct is sequentially operated according to the suction capacity of the cotton collecting device. The duct to communicate with the main duct and release the scraper standby state after the duct opening / closing device corresponding to the scraper on standby returns from the open state to the closed state. I did it.

(Operation) In the present invention, the scraper that reciprocates along the longitudinal direction of the machine base is driven independently of the scrapers of other machine bases. When the scraper is moved to the position corresponding to the duct, the scraper stands by at that position, and the duct opening / closing device is operated in the standby state. Therefore, since the suction action is exerted on the dust attached to the scraper,
The dust carried to the position corresponding to the duct by the scraper is surely sucked and removed by the cotton collecting device through the duct.
Also, the number of opening / closing devices that are operated simultaneously is determined according to the suction capacity of the cotton collecting device, and in order to minimize power consumption, usually one device is operated at a time, and in some cases a plurality of devices are simultaneously operated. For this reason, when the scraper is moved to the position corresponding to the duct and the opening / closing device is operated in another machine to perform suction action on the duct, the scraper is moved to the position corresponding to the duct. It waits until the opening / closing device of the duct corresponding to operates and the suction action is performed.

(Example 1) Examples 1 to 3 in which the present invention is embodied in a roving machine will be described below.
Description will be made with reference to the drawings. The apparatus of this embodiment is different from the above-mentioned conventional apparatus in the configuration of the opening / closing device for opening and closing the communication portion 6a of the duct 6 provided at the end of each roving machine base 1 and the configuration of the control device for driving and controlling it. , And other basic configurations are the same as those of the conventional device, and the same parts will be described with the same reference numerals. The cleaning device with the net 4 is provided with a rotary impeller (not shown) for generating a suction air flow over the entire length in the machine base longitudinal direction like the device disclosed in JP-A-63-28923. ing. The scraper 7 is arranged along the longitudinal direction of the machine base and is fixed so as to be integrally movable with respect to an endless belt driven by a motor capable of forward and reverse rotation driving, and along the net 4 along with the forward and reverse rotation of the motor. Be reciprocated.
Further, the scraper 7 is arranged at a position where it comes into contact with the net 4 when moving forward, that is, when moving toward the duct 6 side, and at a position separated from the net 4 when returning. Sensors 9 and 10 for detecting the presence or absence of the scraper 7 are provided at predetermined positions at the gear end (left side in FIG. 1) and the out end of the roving machine base 1, respectively.

As shown in FIG. 2, each duct 6 is provided with a switching valve 11 as an opening / closing device that opens and closes a communication portion 6a of the duct 6 with respect to the main duct 2. The switching valve 11 is always kept closed, and is operated so as to be opened for a predetermined time based on a control signal from the controller 12. The control device 12 inputs the detection signal from the sensor 10 provided in each roving machine base 1, and registers the machine number of the roving machine base in a register (not shown) in the order of input. Then, an output signal for operating the switching valve 11 is sequentially output in the order of registration.

Next, the operation of the device configured as described above will be described.
The scraper 7 provided on each roving machine stand 1 waits for a predetermined time at the gear end side standby position in contact with the net 4 and then moves to the out end side in contact with the net 4 by the forward rotation of the motor. While moving forward, the dust such as cotton wool adsorbed on the net 4 is scraped off and moved toward a position corresponding to the duct 6. When the scraper 7 moves to a position corresponding to the duct 6, the sensor 10 detects the scraper 7 and outputs a detection signal to the control device 12. Further, the normal rotation drive of the motor is stopped and the scraper 7 is arranged at a position separated from the net 4. When the detection signal from the sensor 10 is input, the control device 12 registers the roving frame number in the register in the input order. Then, it outputs an output signal for operating the switching valve 11 of the duct 6 provided in the roving frame 1 in order of registration so that the switching valve 11 is kept open for a predetermined time t1 (about 15 seconds). The motor for driving the scraper 7 is a switching valve 11
Is reversely driven based on a detection signal from a detection device (not shown) that detects the return from the open state to the original closed state, and the scraper 7 moves toward the gear end side when the suction action on the duct 6 is completed. It moves and waits for a predetermined time in the waiting part at the gear end.

When the scraper 7 moves to the position corresponding to the duct 6 and the sensor 10 detects it, and when the other scraper 7 is not in the position corresponding to the duct 6, the control device 12 is based on the detection signal from the sensor 10. Immediately activates the switching valve 11 of the duct 6 corresponding to the scraper 7, so that the sensor 10
The time t2 during which the scraper 7 detects the scraper 7 becomes equal to the operation time t1 of the switching valve 11. On the other hand, when the scraper 7 is moved to the position corresponding to the duct 6 and the scraper 7 is located at the position corresponding to the duct 6 in the other roving machine stand 1, the scraper of the other machine stand is moved to the gear end side. The switching valve 11 is activated for the first time when it moves toward the duct 6
Is applied to the scraper 7. That is, when a plurality of scrapers 7 are moved and arranged at the positions corresponding to the ducts 6, the scrapers 7 previously arranged at the positions are sequentially operated for a predetermined time from the switching valve 11 of the ducts 6. Therefore, the dust carried by the scraper 7 is reliably sucked from the duct 6 to the main duct 2 and collected in the cotton collecting device 3 without lowering the suction action of the main duct 2. Multiple scrapers 7 are ducts 6 at almost the same time.
If it is located at a position corresponding to
The scraper 7 arranged at a position corresponding to the duct 6 on which is operated has a long waiting time, but the operation time of each switching valve 11 is relatively short as about 15 seconds, and the waste cotton from the net 4 by the scraper 7 is relatively short. It does not hinder the removal of dust.

The present invention is not limited to the above embodiment, and may be applied to, for example, dust treatment of a plurality of cards arranged in parallel. In this case, each card has a pair of endless chains provided on both sides of the bottom of the machine base 13 as shown in FIG.
The scraper 15 is installed between 14 so that it can move integrally,
A duct 17 communicating with the main duct 16 is provided at one end of 13. Even in this device, the scraper 15 is connected to the duct 17
The duct 17 is brought into communication with the main duct 16 in sequence at the time when the duct 17 is moved to a position corresponding to. Further, a diaphragm similar to the conventional apparatus is provided as the opening / closing device arranged in the duct 6 instead of the switching valve 11, and the rotary valve 8 for controlling the opening / closing of the diaphragm is driven by the servo motor and the servo motor is controlled by the controller. Or to increase the suction capacity of the cotton collecting device 3 so that the plurality of ducts 6 are in communication with the main duct 2 at the same time, or when a large number of scrapers 7 are arranged at positions corresponding to the ducts 6, the ducts 6 It is also possible to make the order of communicating with the main duct 2 in the order of the machine number of the roving machine frame 1 instead of the arrival order of the scraper 7.

(Effect of the invention) As described in detail above, according to the present invention, since the duct is in communication with the main duct in the standby state in which the scraper is arranged at a position corresponding to the duct, dust and dust carried by the scraper and Dust adhering to the scraper is surely sucked and removed through the duct to the main duct. Further, when a large number of scrapers are simultaneously arranged at positions corresponding to the respective ducts, the ducts are sequentially brought into communication with the main duct according to the suction capacity of the cotton collecting device,
The suction action of the duct is always maintained in a predetermined state, and the dust is reliably sucked and removed. Furthermore, since the ducts corresponding to the scrapers are in communication with the main ducts and the standby state is maintained until the suction and removal of dust is completed, as described above, a large number of scrapers are arranged at the positions corresponding to the respective ducts at the same time. Even if it is done, the dust of each scraper is surely sucked and removed.

[Brief description of drawings]

1 to 3 show an embodiment in which the present invention is embodied in a roving machine. FIG. 1 is a schematic plan view, FIG. 2 is a sectional view of a duct, and FIG. 3 is a scraper drive motor and a switching valve. 4 is a time chart showing the operation of the above, FIG. 4 is a schematic view of a modified example, and FIG.
The figure is a schematic plan view of a conventional device. A roving machine stand 1, a cotton collecting device 3, a net 4, ducts 6 and 17, a communication part 6a, a scraper 7, a sensor 10, a switching valve 11 as an opening / closing device, and a control device 12.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-49-94930 (JP, A) SAI-KAI 63-11578 (JP, U)

Claims (1)

(57) [Claims] 1. A duct is provided at an end of each of the spinning machine stands arranged in parallel, and a scraper is provided which reciprocates along the longitudinal direction of the machine stand to collect dust in the duct. In a spinning machine that is provided with an opening / closing device that is connected to a main duct that is connected to a cotton collecting device and that opens and closes a communicating portion, the opening / closing devices are always kept closed, and the scraper is moved to a position corresponding to the duct. When
The scraper is made to stand by at that position, and in that state, the opening and closing device of the duct is sequentially operated according to the suction capacity of the cotton collecting device to bring the duct into communication with the main duct, and the duct of the scraper waiting is A dust processing method for a spinning machine, which releases the standby state of the scraper after the switchgear returns from the open state to the closed state.