WO2016179991A1

WO2016179991A1 - Air blowing and sucking system for roving frame

Info

Publication number: WO2016179991A1
Application number: PCT/CN2015/094610
Authority: WO
Inventors: 杨广泽; 吉宜军; 夏春明
Original assignee: 南通双弘纺织有限公司
Priority date: 2015-05-14
Filing date: 2015-11-13
Publication date: 2016-11-17
Also published as: CN104846493B; CN104846493A

Abstract

Disclosed is an air blowing and sucking system for a roving frame. In the air blowing and sucking system, a table sucking opening (4) is provided on the lower end of each table sucking pipe (3), a rack (1) is provided with a continuous track (5) from a headstock to a tailstock, a trolley (6) is arranged on the track (5) in a matching manner, and an upper blowing and sucking draught fan (7) is fixed to the trolley (6); and a dust and impurity exhaust outlet (8) movably connected to a tailstock air sucking pipe (2) is provided on the rear end of the upper blowing and sucking draught fan (7), the upper blowing and sucking draught fan (7) is fixedly connected with an upper air blowing pipe (9), a table air blowing opening (10) is provided on the lower end of the upper air blowing pipe (9), the front end of the upper blowing and sucking draught fan (7) is connected to an air sucking elbow pipe (11), and a connector (12) adaptive to the upper end of the table sucking pipe (3) is provided on the lower end of the air sucking elbow pipe (11). An upper blowing and sucking draught fan (7) and a tailstock draught fan both adopt an intermittent running mode through electrical control, thereby being able to increase original air blowing and sucking effects and having a relatively obvious energy saving effect.

Description

a blower system for a roving frame

Technical field

The invention relates to the field of textile technology, in particular to the blowing and suction system technology of a roving frame.

Background technique

In order to further improve product quality and reduce product defects, the roving frame (or old machine modification) is equipped with an upper blower and a table suction device to remove the scraping cotton from the upper scraping cloth, the lower scraping cloth and the countertop dust. Keep the machine clean. However, the suction on the countertop relies on the main exhaust fan of the rear of the vehicle to connect ≥60 suction points, and the motor power fan of ≥4KW continuously adsorbs the dust on the countertop and the lower scraping cotton, while the countertop dust and the lower scraping cotton only cooperate with the blower on the countertop. It can be partially sucked away, so that not only is the countertop not clean enough, but also the production at the expense of high energy consumption.

The current suction system status of the roving frame:

From the main technical performance parameter table of the above roving frame blower, it can be known that the fan of the existing roving machine suction system includes an upper blower and a tail suction fan, and the suction pressure of the upper blower can be sucked when the negative pressure is 1200 Pa. Walking on the flannel to wipe the cotton, the negative pressure value of the rear fan is 1500Pa, but because the main air duct has ≥60 suction points, the first negative pressure difference is large, so the rear fan needs a large amount of power to be blown up. The air outlet and the sub-surface suction point cooperate to absorb some of the tabletop flying flowers and impurities. The total installed power of the two fans in the table is ≥5.5kw, which is unreasonable. Whether measures can be taken to reduce the actual total power consumption of the fan when it does not affect the air volume and negative pressure of each suction point.

There are several practical problems in the operation of the existing blasting system of the roving machine:

1. The blower on the roving frame is not fully utilized

The existing blower on the roving frame is in the form of blowing air on both sides, that is, one suction port on each side, one air outlet, two air suction ports on both sides, two air suction ports, and now only one suction in front of the car is used. The tuyere and a vent, while the air outlet behind the car is always blowing air to the outside when the fan is running. The suction port always keeps the wind into the fan, because there is no Make full use of it, and there is a large energy loss.

2. The current status of the operation of the blower suction fan and the rear suction fan on the roving frame

The function of the blower on the roving frame is to suck up the cleaned flannel to wipe the cotton, and at the same time, the blower of the blower blower also blows through the suction point of the tabletop, and the main exhaust fan sucks the wind together to suck off the cleaned flannel to wipe the cotton, the tabletop dust miscellaneous. Since the upper cleaning wiper, the lower cleaning scraper, and the countertop dust do not always fall at the same time, the main dust suction blower cannot continuously suck the countertop dust, and some of the lower scraping cotton cannot be sucked away. When the suction fan and the suction point of the table work together, the cleaning effect can be achieved. Therefore, the main dust exhaust fan can not clean the table when it is continuously operated for a certain period of time, thereby wasting power and causing great losses to the enterprise.

3. The actual running condition of the blower on the roving frame

The blower on the roving frame always works back and forth. After actual observation, it takes ≥2 minutes for the blower to travel 1 round trip. After running 3 back and forth, the tail is 1.5 minutes, and 3 consecutive round trips are obviously less than intermittent operation. Because the intermittent operation can not only suck up the flannel to wipe the cotton, together with the main fan at the rear of the car to complete the cotton scraping and sucking off the dust on the countertop, and because of the continuous operation of the upper blower, it is designed to operate intermittently to save energy. However, the number of times of blowing and the number of pauses and the pause time on the existing roving frame cannot be adjusted in the PLC, thereby causing waste of electricity.

4, the existing roving machine connection method

The main dust exhaust fan of the roving frame now uses ≥4KW motor power to continuously and continuously absorb the dust on the entire surface of the table with ≥60 suction points at a high speed of 2900r/min. The upper blow suction fan absorbs the scraping cotton, and at the same time, the lower scraping cotton, the table dust is once blown to the suction point, and together with ≥60 suction points, part of the dust, the cotton stripping is sucked away by the main exhaust fan of the tail. Together, they are responsible for completing the cleaning task. In this process, only when the upper blow pipe is passing, the table suction point can complete the cleaning task, and the suction point of the table after the blow pipe is blown is still working continuously, and the countertop suction point that has not been blown is also Working non-stop, wasting the power of the main exhaust fan motor.

In short, the existing types of roving frame blowing and suction system can remove some of the flying flowers and dust, but there are some disadvantages such as insufficient cleaning and high energy consumption.

Summary of the invention

It is an object of the present invention to provide a blower system for a roving frame that achieves thorough cleaning and is energy efficient.

The invention comprises a frame arranged from the front of the vehicle to the rear of the vehicle, the rear suction pipe is fixed on the frame at the rear of the vehicle, a plurality of countertop suction pipes are fixed on the frame, and the lower end of each of the suction pipes is provided with a table suction port in the frame A continuous track from the front to the rear of the car is arranged, a trolley is arranged on the track, and a blower is fixed on the trolley.

The rear end of the upper blower is provided with a dust discharge port that is movably connected to the rear suction pipe, and the dust discharge port is connected with a small tail fan, and the rear fan requires only a small power motor.

An upper blowing pipe is fixedly connected to the upper blowing fan, and a table air outlet is arranged at the lower end of the upper blowing pipe.

The front end of the upper blower is connected to the suction bend, and the lower end of the suction bend is provided with a connection port adapted to the upper end of the table suction pipe.

The upper blower and the rear fan are intermittently operated by electrical control.

By modifying the peripheral circuit, the working procedure of the rear suction fan configured on the upper blower and the original roving frame can be as follows: the upper blower blows along the track on the frame from the front to the rear or the rear of the vehicle to the front of the vehicle. The tail fan is always running continuously, and the tail fan is now stopped. When the upper blower moves to the rear of the roving frame, after touching the travel switch, the inertia stops to the rear of the vehicle, and the rear suction fan opens and delays for 10 seconds (adjustable). At this time, the rear fan is docked by the exhaust pipe of the tail and the dust discharge port of the upper blower, and the debris of the upper blower can be completely sucked away. Depending on the degree of impurities in the variety to be spun, it will run in one cycle after stopping for 2 to 4 minutes (adjustable). During the operation, it is necessary to ensure that the upper blower is at the rear of the vehicle from the beginning to the end, and the rear suction pipe of the rear suction fan is always connected to the dust discharge opening of the upper blower. When the scraping cotton is piled on the table to form dust, the upper blower starts to run toward the front. The upper blower blows through the upper blow pipe, and blows from the blower opening of the lower end of the upper blow pipe to the table top, and the upper blower blows through the upper end of the corresponding table pipe through the suction pipe, and sucks the table dust from the table mouth of the lower end of the pipette Miscellaneous, adsorbed dust temporarily exists in the inner cavity of the upper blower. When the upper blower is driven to the front of the vehicle, most of the upper scraping cotton is sucked away, and most of the countertop dust and the lower scraping cotton are sucked away by the upper blower with the cooperation of the upper blower. The upper blower blows back to the front of the vehicle and returns in time. In this way, the cotton is peeled off, the surface dust and the lower stripping cotton are completely cleaned, the upper blower is stopped to the rear of the vehicle, and then the rear end fan is stopped for 10 seconds (adjustable). A reincarnation ends. When the scraping cotton falls on the table top, the next round starts, and the machine is cleaned in such a reciprocating manner, which not only can improve the original blowing and sucking effect but also has obvious energy saving effect without affecting the product quality.

The features of the invention are:

1. The invention keeps the existing roving locomotive from blowing and sucking two points unchanged, and the function of the blowing tube is to cooperate with the suction point of the machine to jointly complete the action of sucking the cotton surface under the suction surface and the velvet cloth, and the suction pipe is still Used to suck the velvet on the velvet.

2. The invention utilizes two blows and one suction of the upper blower, and can be used with the suction dust and the lower scraper. Because the negative pressure of the suction point of the original roving machine table farthest from the rear main suction fan is greater than 500Pa, that is, as long as the negative pressure of each suction point of the vehicle surface is greater than 500Pa, the car surface can be sucked under the cooperation of the front blowing point. And the dust of the scraping cotton, and the measured negative pressure of the suction point of the upper blower is greater than 1000 Pa, which is about twice the required negative pressure value, which is of course sufficient to meet the blowing requirements.

3. All the suction points of the existing roving frame are concentrated on one main air passage of the table top, and the main fan of the rear end directly absorbs the dust on the table top and the lower scraping cotton, which is bound to make the negative pressure uneven along the length direction of the roving frame. Moreover, there is a part of the suction point of the table which cannot be adsorbed separately, so the power of the main fan is inevitably large to absorb the dust on the surface of the car and the underlying cotton. The invention eliminates the main air passage, redesigns ≥ 60 single, independent and completely dispersed tubular suction points, and sets each table suction point separately The lower end of the independent countertop suction pipe is connected with each independent countertop suction pipe by the walking upper suction suction fan, and directly absorbs the dust of the table top and the lower scraping cotton from the suction point of the tabletop one by one. In the case of this design, the suction fan at the rear of the vehicle is only required to be able to absorb the negative pressure of the debris in the inner portion of the upper blower. It is estimated that the 0.75kW rear fan can be used to meet the air volume and negative pressure requirements (the original rear fan power ≥ 4KW). In this way, the energy consumption of the tail fan can be greatly reduced, and the effect of high efficiency and energy saving can be achieved. If a roving machine works 350 days a year and 0.8 yuan per kilowatt hour, each roving machine can save 1.70 (60.64 × 0.8 × 350) to 1.79 (64.01 × 0.8 × 350) yuan per year.

In addition, the present invention also provides an upper blower body on the upper blower to clean the blown dust blow port, the trolley travel wheel suction port and the trolley wheel dust suction port. It is used to clean the dust generated by the operation of the upper blower on the surface of the fuselage and the fan pulley and the traveling wheel, so as to reduce the labor intensity of the worker's cleaning and reduce the damage of the fan parts caused by the entanglement of the fan.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention.

Figure 2 is an electrical control diagram of the present invention.

detailed description

The invention comprises a frame 1 arranged from the front to the rear of the vehicle, and a rear suction pipe 2 is fixed on the frame 1 at the rear of the vehicle, and a plurality of table suction pipes 3 are fixed on the frame 1 by fixing members, respectively. The lower end of the 3 is provided with a table top suction port 4, and a continuous rail 5 from the front end to the rear end is provided on the frame 1, and a trolley 6 having wheels and pulleys is fitted on the rail 5, and the upper suction blower 7 is fixed to the trolley 6.

The rear end of the upper blower 7 is provided with a dust discharge port 8 movably connected to the rear suction pipe 2, and the other end of the rear suction pipe 2 is connected with a lower power tail fan.

An upper blowing pipe 9 is fixedly connected to the upper blowing fan 7, and a table opening 10 is provided at the lower end of the upper blowing pipe 9.

The front end of the upper blower 7 is connected to the suction bend 11, and the lower end of the suction bend 11 is provided with a connection port 12 adapted to the upper end of the countertop suction pipe 3. It is used to cooperate with the countertop suction port 4 of the countertop suction pipe 3 to complete the tabletop cleaning work.

The upper blower fan 7 is further provided with an upper blower body cleaning blow dust blowing port 13, a trolley traveling wheel suction port and a trolley wheel dust suction port 14. It is used to clean the surface of the upper blower 7 and the trolley traveling wheel and the pulley to avoid damage to the pulley.

During the operation, the initial stop position of the upper blower is always at the rear of the vehicle, and the two processes of traveling from the rear of the vehicle to the front of the vehicle and then from the front to the rear of the vehicle are combined into a complete cycle. When the upper blower is driven to the rear of the vehicle, the upper blower is stopped, and all the existing debris in the inner cavity of the upper blower is sucked under the negative pressure of the rear blower, and then the tail fan is stopped for a few seconds, two After the fan is stopped for a few minutes, the upper blower fan enters the next cycle, and the tail suction fan is always in the stop state during the operation of the upper blower.

In order to realize the electrical control of the upper blower and the rear suction blower, the electrical control principle is shown in Fig. 2: 1. When the upper blower blower hits the stroke switch SQ, the upper blower contactor KM1 is broken. On, the blower fan motor M1 is powered off, and the blower fan motor M1 is in inertial operation; 2. The rear suction fan contactor KM2 is changed to be controlled by the tail suction air stroke switch SQ, when the upper blower block hits the travel switch In SQ, the rear fan contactor KM2 is closed, the rear fan motor M2 is started, the time relay KT1 starts to delay for ten seconds to stop (time can be adjusted); 3. After the blower contactor KM1 loses power, the time relay KT2 starts to delay After 2 to 4 minutes (time adjustable), the contactor KM1 is pulled in, M1 is energized, and the upper blower is started again, so that the cycle is repeated.

The equipment of the present invention is equipped as follows:

项目project	数值Numerical value
风量Air volume	1500m³/h1500m ³ /h
风压Wind pressure	900pa900pa
电机功率Motor Power	0.75KW0.75KW
转速Rotating speed	2900r/min2900r/min

to sum up:

For a long time, the roving machine has a bad phenomenon that the machine is not clean enough and wastes energy, which affects the cleaning of the working environment and causes unnecessary energy waste to the enterprise, so that the product cost increases. Through the above-mentioned improved technical scheme, under the premise of not affecting product quality, improving the effect of removing dust and removing cotton, the energy-saving effect is very obvious, and the energy saving is more than 80% compared with before, which greatly saves the production cost for the enterprise.

Claims

A blower suction system of a roving frame, comprising a frame arranged from the front to the rear of the vehicle, and a tail suction pipe fixed on the frame at the rear of the vehicle, wherein: a plurality of surface suction pipes are fixed on the frame. The lower end of each table straw is provided with a table suction port, a continuous track from the front to the rear of the frame is arranged on the frame, a trolley is arranged on the track, and a blower is fixed on the trolley; the rear end of the upper blower is arranged and a dust discharge port that is connected to the tail suction pipe; an upper blow pipe is fixedly connected to the upper blower, and a table blower is arranged at a lower end of the upper blow pipe; and the front end of the upper blower is connected to the suction bend, The lower end of the suction pipe is provided with a connection port adapted to the upper end of the table suction pipe.
A blow-up and suction system for a roving frame according to claim 1, wherein said upper blower is provided with a blower blower body for cleaning a blown dust blow port, a trolley travel wheel suction port, and a trolley wheel sucker. Dust.