JPH0637369U - Cleaning device for draft device in spinning machine - Google Patents

Abstract

(57) [Abstract] [Purpose] In a cleaning device configured to collect dusts generated in the portion of the draft device covered by the cover by using the suction airflow, the flow of the suction airflow in the cover is made orderly, In addition, the sucked airflow is concentratedly passed through the portion where the cotton dust is frequently generated, and the cotton dust is surely sucked and collected. A duct 14 is connected to a first air intake 13 formed in front of a cover 8 which covers a draft device D, and an opening 14a is upstream of a side and an upper part of a draft roller row. The first and second air inlets 15 are provided at the front and lower portions of the draft roller row and have the same width as the draft roller row.
Each of the air taken in from each of the air intakes 13 and 15 is sucked into the suction port 18 provided on the upstream side of the draft device D to generate the suction air flow of different flow paths in the cover 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cleaning device for collecting dusts generated in a draft device of a spinning machine, particularly a drawing machine, by suction air flow.

[0002]

[Prior art]

First, the part of the drafting device D of the drawing machine will be described with reference to FIG. 2 is a diagram showing an embodiment of the present invention, the description of the draft device D will be made with reference to this drawing. This draft device D is provided with top rollers R _1, R _2, R _3, R _4, R ₅ on the upper side and bottom rollers R _6, R _7, R _8, R ₉ on the lower side, respectively. There is. Clearer crosses E _{1 and} E ₂ that contact and slide the top roller rows R _{1 to} R ₅ over the entire width are arranged above the top roller rows R _{1 to} R _{5 on} the upper side, and the bottom roller rows on the lower side are arranged. A pad clearer P that slides in contact with the entire width of R _{6 to} R ₉ is arranged below the R _{6 to} R ₉ . In addition to the clearer cloths E _{1 and} E ₂ and the pad clearer P described above, the draft device D causes a suction airflow in the cover 8 that covers the entire draft device D, and the suction airflow causes the above-mentioned A cleaning device is provided for sucking and collecting the cotton swabs attached to the clearer cloths E _1, E ₂ or the pad clearer P or the cotton swabs floating in the cover 8. In this cleaning device, an air intake is provided in a cover 8 that covers the entire draft device D, and a suction port connected to an intake source is provided below or upstream of the draft device D. A suction airflow is generated in the cover 8 that covers the entire device D, and the suction airflow causes the cotton dust attached to the above-mentioned clearer cloths E _1, E ₂ or the pad clearer P, or the cover 8 In addition to sucking and collecting the cotton swabs floating in the chamber, it also sucks and collects a large amount of cotton swabs generated during the draft to prevent the cotton swabs from accumulating on the device arranged in the cover 8. I'm out.

When a large number of air intakes are provided in the cover, the suction airflow is taken in from various points in the cover, and the suction airflow acts at many points in the cover, but the airflows flowing from the respective locations interfere with each other. May cause eddies. Also, if the opening of the air intake port provided in the cover is small, the velocity of the suction airflow will increase at this air intake port, and this airflow will suddenly enter the inside of the wide cover. Will increase. If a swirl is generated inside the cover, the dust particles will be caught or accumulated on the components of the draft device, and the dust particles present in the cover cannot be sucked and collected effectively.

The flow direction of the suction airflow in the cover 8 that covers the entire draft device D depends on the position of the air intake provided in the cover 8. Conventionally, the position of the air intake of this cover is one that is provided on the front side of the cover, one that is provided on the upper side of the cover, and that the air intake provided on the cover and the draft section are connected by a duct, and the duct opening to the draft. It is roughly divided into three types, one that blows air into the part.

The above-described cover provided with the air intake on the front side is slightly different depending on the arrangement of the air intake on the front side of the cover, but it is indicated by 5 in FIG. 2 depending on the device arranged inside the cover. Those that pass the side of the gatherer and flow to the side of the lower part of the draft device to reach the suction port, those that flow above and to the side of the clearer cloths E _{1 and} E ₂ , and the draft rollers R _{1 to} R _{1. Although} it is divided into those flowing on the side of ₉ , the whirlpool is generated at various places in the cover part, and the fly flies are caught or accumulated on the components constituting the draft device. In the case where the cover is provided with an air inlet on the upper side, the air flowing into the draft roller portion flows from the upper side to the lower side, so that the fly dust generated in the draft roller portion and the gatherer 5 rises upward. Without being moved, it is sucked into the suction port, but the tools used for cleaning and maintenance of the machine base fall into the cover from the air intake port, and the device inside the cover is removed. It may be damaged. Also, with the one described in, it is difficult to balance the amount of air taken into the duct from the duct opening and the amount of air sucked into the suction port, and the flow velocity of the suction air flow may vary depending on the location of the device. There is also a case where it decreases and flies are accumulated.

[0006]

[Problems to be solved by the device]

 The present invention is a cleaning device configured to suck and collect cotton dust generated in a draft device in a cover by a suction airflow generated by sucking outside air from a plurality of air intakes provided in a cover that covers the entire draft device. In order to ensure the suction and recovery of the cotton swabs, it is necessary to arrange the suction airflow in the cover in an orderly manner and to allow the suction airflow to intensively pass through the area where the cotton swabs are frequently generated. It is a thing.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the means adopted by the present invention is to provide a plurality of air intakes in a cover that covers the entire draft device, and provide a suction port in the rear of the draft device, which is connected to an intake source. In the cleaning device of the draft device, a suction airflow is generated from the suction port to each of the air intake ports in the cover, and the cotton dust generated by the draft device is sucked and recovered by the suction airflow. A duct is connected to the air intake provided in the front part of the cover, and its opening is arranged with the upstream side facing the side and above the draft roller row, and the draft roller row in the cover is arranged. That is, an air intake having a width substantially the same as that of the draft roller row is provided in the front part of the.

[0008]

[Function of the device]

 Since the duct is connected to the air intake provided in the front part of the cover that covers the entire draft device, and the opening of this duct is arranged laterally and upward of the draft roller row with the upstream side facing, The suction airflow that has flowed in from the air intake flows into the suction ports from the side of the draft roller row and the upper clearer cross in a direction that combines the obliquely downward direction and the upstream direction. On the other hand, since an air inlet having a width substantially the same as that of the draft roller row is provided in the front portion of the draft roller row in the cover, the airflow flowing from this air intake is below the draft roller row and Orderly flow into the suction port on both sides of, and under the calender roller. The above two air streams have completely different flow paths, do not interfere with each other, and flow orderly in the part where drafts are most likely to occur in the draft device, so that the drafts generated in the draft device are The two air streams mentioned above carry them to the suction port and collect them reliably.

[0009]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to an example in which the present invention is applied to a two-delivery drawing machine. FIG. 1 is a schematic front view of a kneading machine having a drafting device equipped with a cleaning device according to the present invention, and FIGS. 4 is a cross-sectional view taken along line ZZ in FIG. 2, FIG. 5 is a plan view showing the flow of suction airflow inside the cover 8, and FIG. 6 is a front end of the cover 8. It is the perspective view which looked at the part from the lower part. 1 to 4, the left and right draft devices D and D are supported by a pair of left and right roller stands 2 and 3 disposed on the roller beam 1, respectively. Each draft roller that constitutes the draft device D, and each top roller R₁~ R_FiveEach clearer cloth E for cleaning_1, E₂And bottom roller R_6,R₇Each structure of the portion of the pad clearer P for cleaning the same is the same as the portion described in the section "Prior Art", and as shown in FIGS.₁~ R_FiveA top arm 4 is provided on each end of the top roller R.₁~ R_FiveAre arranged horizontally along the direction perpendicular to the axis of each of the top rollers R by the top arm 4.₁~ R_FiveIs each bottom roller R₆~ R₉Is pressed against. Connected to the draft device D, a gatherer 5, a reducer 6 and a calendar roller 7 are arranged in this order toward the downstream side. In this embodiment, two independent clearer cloths E are used._1,E₂Is used for each cross E_1,E₂The predetermined gap is formed between the bottom roller R ₆ And top roller R₂And a bottom roller R₇And top roller R₃Since the draft ratio between the roller pair composed of and is the largest, and the most cotton dust is generated in this part, each cross E_1,E₂This is because the cotton wool is sucked and collected upward through the gap formed between the two.

As shown in FIG. 4, the two draft devices D described above are arranged at a predetermined interval, and these two draft devices D are completely covered by one cover 8. It is like this. The upstream end of the cover 8 is attached to the top duct 9 via a hinge 11 and can be opened and closed with respect to the roller beam 1. The cover 8 is inclined downward from the upstream side to the downstream side in the arranged state, from the upper plate portion 8a parallel to the roller beam 1 and the end of the upper plate portion 8a opposite to the hinge 11. Inclined front plate portion 8b, upper front plate portion 8c vertically extending downward from the lower end of the inclined front plate portion 8b, and from the lower end of the upper front plate portion 8c toward the inside of the cover 8 at a right angle to the upper front plate portion 8c. The formed lower plate portion 8d, the lower front plate portion 8e formed downward from the inner end of the lower plate portion 8d at a right angle to the lower plate portion 8d, and from the end portion of the lower front plate portion 8e to the lower plate portion 8d. The support portion 8f formed at right angles to the opposite direction is sequentially provided. As shown in FIGS. 2 and 4, when the cover 8 is closed, its supporting portion 8 f contacts the upper surface of the roller beam 1 to support the cover 8 itself, and the openings on both sides of the cover 8 are provided. The part is closed by the left and right side walls 12 provided on the roller beam 1.

As shown in FIG. 1, FIG. 2 and FIG. 6, in the lower plate portion 8 d of the cover 8, three first air intakes 13 are arranged at predetermined intervals along the width direction of the cover 8. It is provided. That is, the first air intake 13 at the center is arranged between the draft devices D, and the first air intakes 13 at both ends are arranged at the sides of the draft devices D. The width of the first air intake 13 arranged on the side of each draft device D is narrower than the width of the first air intake 13 arranged at the center thereof. Ducts 14 are connected to the three first air intakes 13, respectively, and the openings 14a thereof are directed to the side of the draft device D and the upstream side in the upper part thereof. Further, the lower front plate portion 8e and the supporting portion 8f located below the lower plate portion 8d of the cover 8 are notched at the front positions of the draft roller rows of the two draft devices D, D, respectively. Two air intakes 15 are formed. The width of the second air intake port 15 is substantially the same as the width of the draft roller row of the draft device D ₁ (for example, the width of the portion where the top roller R ₁ and the bottom roller R ₆ are in contact with each other). It has become. Inside the cover 8, a pair of wall plates 16 are provided on both sides of the second air intake 15. The inner end 16a of the wall plate 16 is located near the downstream end of the draft device D and the calendar roller 7, and the lower surface 16b thereof is in contact with the upper surface of the roller beam 1. The wall plate 16 is for controlling the airflow taken in from the second air intake port 15 to flow upstream as it is.

A duct 19 connected to an intake source is arranged along the direction of the draft roller at a portion inside the roller beam 1 and upstream of the draft devices D, D. A suction port 18 is formed at a portion of the draft device 19 located upstream of each draft device D. An intake air source connected to the duct 19 takes in outside air from the first and second air intake ports 13 and 15, and sucks the outside air through the suction port 18 to generate a suction airflow inside the cover 8. Further, a top suction head 21 connected to the top duct 9 through an upper suction port 22 is arranged immediately above each of the clearer cloths E _{1 and} E ₂ . The top suction head 21 has a rear opening 21a for sucking the cotton dust scraped off the clearer cloth E ₁ by the top comb 23, and the wind scraped off the clearer cloth E ₂ by the top comb 24. a front opening 21b to suck the cotton such, the opening 2 1c in for sucking the floating wind cotton are provided from the gap between the clearer cloth E _1, E _2. As shown in FIGS. 1 and 2, a third air intake port 25 is provided in a portion of the inclined front plate portion 8b of the cover 8 facing the top roller R ₁ with a width substantially equal to that of the roller R _1. Has been.

When the kneading machine is operated with the cover 8 closed, a plurality of slivers S sent from the upstream side of the draft rollers of each draft device D are sequentially drafted, so that the belt-shaped fleece F It flows into the gatherer 5 in the state. In the gatherer 5, the belt-shaped fleece F is converged to form a single bar-shaped converging sliver S ₁ which passes through the calender roller 7 to a can (not shown) arranged below the roller beam 1. It is stored. Then, a large amount of cotton wool is generated when the sliver S is drafted by the draft device D and when the fleece F is focused by the gatherer 5. On the other hand, the suction fan is rotated in conjunction with the operation of the drawing machine, and at the respective portions of the suction port 18 of the duct 19 and the upper suction port 22 of the top duct 9, the insides of the top suction head 21 and the cover 8 are removed. Air is sucked and the inside of the cover 8 becomes negative pressure. In operation of the draft device D, deposited from the top roller R _1, fiber dust attached to R ₂ it is recovered by click Riyarakurosu E ₂ opening 21b after the immediately above, also in the top roller R _3, R _4, R ₅ The fly cotton thus collected is collected by the clearer cloth E ₁ and sucked into the top suction head 21 through the front opening 21a immediately above the clear cloth E ₁ , and enters the top duct 9 through the upper suction port 22 and is sucked and collected. .

When the pressure inside the cover 8 becomes negative, the outside air is taken into the cover 8 through the air intake ports 13, 15, 25 provided in the cover 8. The air taken into the cover 8 from the first air inlet 13 flows out from the opening 14 a of the duct 14 and is inclined toward the suction port 18 as shown by an arrow A in FIGS. 3 to 5. It flows along the combined direction of the downward direction and the upstream direction, and is sucked by the suction port 18. The suction airflow inside the cover 8 passes through the portions of the roller stands 2 and 3, the end portions of the draft rollers, and the side portions of the clearer cloths E _{1 and} E ₂ , so The cotton flies generated from the cloth portion are effectively sucked before being accumulated in the peripheral device, and are conveyed to the portion of the suction port 18 and collected. In this way, since the cotton dust generated in the draft device D and not collected in each clearer cloth E _1, E ₂ is effectively collected, the cotton dust floating in these parts is not collected. It is prevented from flowing in the direction of the sliver S during spinning and entering it.

Further, the air taken into the inside of the cover 8 from the second air intake port 15 flows laterally by the wall plates 16 on both sides of the intake port 15 as shown by an arrow B in FIG. It is regulated and flows straight upstream, and is sucked into the suction port 18 through the side portions of the gatherer 5, the reducer 6, and the calendar roller 7. During this time, the cotton dust generated in the gatherer 5 when the fleece F is focused is carried to the suction port 18 and collected. Further, the air taken into the cover 8 from the third air intake 25 is regulated from flowing laterally by the wall plate 16 and flows straight upstream, as shown by an arrow C in FIG. Then, it passes through both sides and below the bottom roller rows R _{6 to} R ₉ and both sides of the gatherer 5, and is sucked into the suction port 18. Therefore, the suction air flow due to the air taken in from the third air intake 25 is generated in the cotton dust separated from the bottom rollers R _{6 and} R ₇ by the contact sliding of the pad clearer P, and the portion of the gatherer 5. The cotton dust is conveyed to the suction port 18 and collected. As described above, the air taken into the inside of the cover 8 from the second and third air inlets 15 and 25 flows straight upstream by the action of the wall plate 16, and the first air inlet 13 Since the flow path is completely different from the flow of air flowing in from the outlet 14a of the duct 14, the suction airflows do not interfere with each other to generate a vortex. Therefore, it is possible to prevent the cotton dust generated in the draft device from floating inside the cover 8 and being caught or accumulated on the components of the draft device D.

Further, with respect to the duct, the opening thereof needs to be positioned at the side and above the draft roller row and faces the upstream side, and the air intake port of the cover is provided in the cover. Any position may be used as long as it is the front part. For example, as shown in FIG. 7, the position of the air intake 13 of the duct 14 provided in the cover 8 may be at the same height as the opening 14 a of the duct 14.

In the above embodiment, in the 2-delivery drawing machine, the air intake ports 13 are provided at all three positions between the draft devices and on the sides thereof. The ducts 14 are connected to each of them, which increases the collection effect of the cotton dust, but the ducts 14 are provided only between the draft devices, and the ducts 14 are provided at the side portions of each draft device. Alternatively, it is possible to simply provide the air intake 13. Further, in the above-described embodiment, the wall bodies 16 are provided in front of the draft roller row in the cover 8 and on both sides of the air intake port 15 provided in the lower portion thereof, whereby the suction airflow is directed to the upstream as it is. Although it is made easy to flow, the wall body 16 is not necessarily provided in relation to the strength of the suction airflow.

[0018]

[Effect of device]

 According to the present invention, a cover covering the entire draft device is provided with a plurality of air intake ports, and a suction port connected to an intake source is provided in the rear of the draft device. In a cleaning device for a draft device, in which a suction airflow reaching the intake is generated and the cotton dust generated by the draft device is sucked and collected by the suction airflow, an air intake provided at the front of the cover The ducts are connected so that their openings are arranged with the upstream side facing the side and above the draft roller row, and the draft roller row and the draft roller row are provided at the portion in front of and below the draft roller row in the cover. Since the air intakes with almost the same width are provided, the suction airflow flowing through the duct is directed from the side of the draft roller row and the upper clearer cross to the diagonally upstream side. At the same time as it flows into the suction port, the airflow that flows in from the air intake port in front of the draft roller row is sucked through below the draft roller row, on both sides of the gatherer and below the calender roller. It flows neatly into the mouth. These two air streams do not interfere with each other through different flow paths, and these two air streams are generated in the draft device because they flow neatly through the most prone part of the draft device. The blown cotton is effectively carried to the suction port by the above two air streams and collected. Also, since each air intake is provided on the front end side of the cover, it is possible to prevent tools from falling into the cover and damaging the device during cleaning and maintenance work of the machine base. There is also an effect.

[Brief description of drawings]

FIG. 1 is a schematic front view of a drawing machine having a draft device equipped with a cleaning device according to the present invention.

FIG. 2 is an enlarged sectional view taken along line XX of FIG.

FIG. 3 is an enlarged cross-sectional view taken along line YY of FIG.

FIG. 4 is a cross-sectional view taken along line ZZ in FIG.

5 is a plan view showing the flow of suction airflow inside the cover 8. FIG.

FIG. 6 is a perspective view of a front end portion of a cover 8 as seen from below.

FIG. 7 is an enlarged cross-sectional view taken along line YY of FIG. 1 in another embodiment.

[Explanation of symbols]

D: draft device R ₁ to R _5: Top roller (top roller train) R ₆ to R _9: bottom roller (bottom roller array) 8: Cover 13: first air inlet (air inlet) 14: Duct 14a: Duct opening 15: Second air intake (air intake) 16: Wall plate 18: Suction port 25: Third air intake (air intake)

Claims (2)

[Scope of utility model registration request] 1. A cover covering the entire draft device is provided with a plurality of air intake ports, and a suction port connected to an intake source is provided below or upstream of the draft device, and the suction port is provided in the cover. In the cleaning device of the draft device, which is configured to generate a suction airflow from the above to each of the air intakes to suck and recover the cotton dust generated by the draft device by the suction airflow, the air intake provided in front of the cover. A duct is connected to the inlet, and its opening is arranged with the upstream side facing the side and the upper part of the draft roller row, and moreover, the draft roller row is formed substantially in the front portion of the draft roller row in the cover. A cleaning device for a draft device in a spinning machine, which is provided with an air intake having the same width. 2. A cover for allowing the suction airflow of the portion of the air intake to flow to the upstream side as it is on both sides of the air intake provided in the front and lower portions of the draft roller row in the cover. The cleaning device for a draft device in a spinning machine according to claim 1, wherein a pair of wall plates are provided.