JPH0651280U - Cleaning device for draft device in spinning machine - Google Patents

Abstract

(57) [Abstract] [Purpose] A structure for generating a suction airflow from the air intake provided in the cover to the lower and upper suction ports and sucking and collecting the cotton dust generated in the draft device in the cover. In the cleaning device, in consideration of the balance of the suction amount of the lower and upper suction ports described above, the suction airflow is effectively applied to the part where the cotton dust is likely to be generated, and the generated cotton dust is reliably collected. It is to be. [Structure] A lower suction head 26 is arranged immediately below a draft device D, and a portion facing between a pair of rollers constituting a maximum draft portion of the lower suction head 26,
And the opening 26 in the portion facing the gatherer 23, respectively.
a and 26b are provided.

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 draft device D of the drawing machine will be described with reference to FIGS. 7 and 8. 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. There is. Above the top roller train R ₁ to R ₅ above side, the top roller array R ₁ to R ₅ a clearer cross E ₁ to sliding contact over the entire _width, E ₂ is arranged, also the lower ball Below the Tom roller rows R _{6 to} R ₉ , a pad clearer P is arranged which contacts and slides over the entire width of the Tom roller rows 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 to occur in the cover C 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 C. In this cleaning device, air inlets 1 and 2 are provided in the front part of a cover C that covers the entire draft device D, and a lower suction port 3 and an upper suction port 4 connected to an intake source are provided in the draft device D. By providing them below or above, respectively, a suction airflow is generated in the cover C that covers the entire draft device D, and this suction airflow causes the above-mentioned clearer cloths E _{1 and} E ₂ or the pad clearer P. In addition to sucking and collecting the cotton swabs attached to the container or floating cotton swabs in the cover C, a large amount of cotton swabs generated during the draft is sucked and collected and placed in the cover C Prevents flies from accumulating on existing equipment.

The above-mentioned drawing machine is a two-delivery machine, in which the above-mentioned draft devices D are arranged on the left and right, and each draft device D is a pair of left and right roller stands arranged on the upper surface of the roller beam 5. Supported by 6. Top arms A are arranged at both ends of each of the top rollers R _{1 to} R ₅ along the direction perpendicular to the axis of the top rollers R _{1 to} R ₅ , and the base ends thereof are rotatably supported. ing. As shown in detail in FIG. 9, both end portions of each of the top rollers R _{1 to} R ₅ are supported by end bushes 7. When the top arm A is tilted to be horizontal, the addition of A portion of the end bush 7 is pressurized by the pressure device 8. The pressurizing device 8 includes a spring 11 for urging the pressure rod 9 downward, and a cotton wool such as a nut 14 for fixing the sleeve 12 for guiding the pressure rod 9 to the housing 13. Equipped with parts that are easily caught.

Further, the above-mentioned lower suction port 3 and the upper suction port 4 will be described in more detail as follows. That is, on the upstream side of the draft device D, the lower duct 15 is arranged horizontally in the direction orthogonal to the direction in which the fleece F flows so as to be flush with the upper surface of the roller beam 5, and directly above the lower duct 15. A top duct 16 is arranged in parallel with the lower duct 15 in the area, and the ducts 15 and 16 are connected to a common intake source. A lower suction port 3 is formed on the upper surface of the lower duct 15, and an upper suction port 4 is formed on the side surface of the top duct 16 on the draft device D side. The cover C is provided on the top duct 16 via a hinge 17 so as to be openable and closable with respect to the upper surface of the roller beam 5. A top suction head 18 communicating with the upper suction port 4 is integrally attached to the back surface of the top plate of the cover C, and openings 18a, 18b, 18c are provided on the lower surface of the top suction head 18, respectively. It has been done. The upper run of the clearer cloth E _1, E ₂ described above, respectively have been arranged comb 19, 21, attached to each Kuriyarakuro scan E _1, E ₂ by the respective comb 19, 21 Kazewatarui Is scraped off and sucked and collected by the suction airflow reaching the openings 18a and 18b. Also been pressure bar 22 is disposed between the roller pairs R _3, and R ₇ the same R _2, R ₆ is the maximum draft unit, said each aperture 18a, opening 18c disposed between 18b is It faces the clearer cloths E _{1 and} E ₂ so as to effectively suck the cotton dust to be accumulated on the pressure bar 22.

As shown in FIG. 7, on the downstream side of the draft device D, there is provided a gatherer 23 connected to the draft device D for focusing the belt-shaped fleece F into a rod shape. The rod-shaped sliver S passes through the trumpet 24 and a pair of calender rollers 25, and is accommodated in a can (not shown) arranged immediately below.

In the draft device D as described above, it is the most likely that cotton dust is generated in the roller pair R._3,R₇Same as R_2,R₆The uppermost draft portion, the gatherer 23 on which the fleece F is focused, the trumpet 24 portion, and the fleece guide (not shown) upstream of the draft device D. However, the conventional drawing machine is provided with the lower suction port 3 and the upper suction port 4, but it is necessary to fully consider the place where cotton dust is generated or the ratio of the suction amount of each of the upper and lower suction ports. Since it is not designed, the sponges are caught and accumulated on each component that constitutes the draft device, and they become lumps.The lumps of sponges fall and fall into the fleece during spinning. This caused deterioration of the quality of the sliver spun out, or thread breakage in the subsequent process. For example, in the illustrated draft device D, even if the suction amount of the upper suction port 4 is set to be smaller than that of the lower suction port 3, the air flow flowing from each air intake port 1 and 2 to the lower suction port 3. Circulates generally in the lower half of the cover C regardless of the part where the sponges are generated, and sucks the floating sponges. For this reason, in the maximum draft portion where the dust is often generated, or in the gatherer 23 portion, from the air intake ports 1 and 2 to the upper suction port 4 (that is, the openings 18a, 18b, 18c of the top suction head 18). ). The influence of the airflow flowing in the above) becomes great, and the cotton dust generated in each of the above parts is sucked upward by the suction airflow.₁~ R _Five The above-mentioned end bush 7 supporting the space or both ends thereof, and the top roller R₁~ R_FiveThe components of the pressurizing device 8 that pressurize both end portions of the above (such as the spring 11 and the nut 14) are caught and deposited. Even when the suction amount of the upper suction port 4 is smaller than that of the lower suction port 3, the above-described phenomenon occurs. Therefore, when the suction amount of the upper suction port 4 is larger than that of the lower suction port 3, , This phenomenon becomes more remarkable.

[0007]

[Problems to be solved by the device]

 The present invention provides a cleaning device configured to generate a suction airflow from the air intake provided in the cover to each of the lower and upper suction ports to suck and collect the cotton dust generated in the draft device in the cover. In consideration of the balance of the suction amount of each of the lower and upper suction ports, it is necessary to effectively apply the suction airflow to the part where the sponges are likely to be generated and to reliably collect the generated sponges. It was made as.

[0008]

[Means for Solving the Problems]

 Means adopted by the present invention to solve the above-mentioned problems are to provide a plurality of air intakes in a cover covering the entire draft device, and to connect an intake source below and above the draft device. A lower suction port and an upper suction port are provided respectively to generate suction airflows extending from the lower suction port and the upper suction port to the respective air intake ports in the cover, and the cotton dust generated by the draft device. In a cleaning device for a draft device in which the suction airflow is sucked and collected, a lower suction head communicating with the lower suction port is arranged immediately below the draft device, and a maximum draft portion of the lower suction head is disposed. Openings are provided in at least two locations, one that faces the pair of rollers that make up and the other that faces the fleece converging portion, and that the suction amount of the lower suction port is Square is that which is set to be larger than that of the suction port.

[0009]

[Function of the device]

 The lower suction head leading to the lower suction port is arranged directly below the draft device, and the lower suction head has an opening at the portion of the draft device facing the place where the dust is most likely to occur. The cotton dust generated in the maximum draft portion, where fouling is most likely to occur, and the fleece focusing portion is immediately sucked and collected in the lower suction head by the strong suction air flow reaching the opening. For this reason, the air flow accompanied by the cotton swabs does not flow to the upper side or the lateral side of the draft section, and the cotton swabs do not get caught on the respective parts constituting the draft device.

[0010]

【Example】

Hereinafter, the present invention will be described in more detail with reference to examples. The same parts as those described in the above-mentioned "Prior Art" are designated by the same reference numerals, and a duplicate description will be avoided, and only characteristic parts of the present invention will be described. 1 is a schematic front view of a kneading machine having a draft device equipped with a cleaning device according to the present invention, FIG. 2 is an enlarged cross-sectional view taken along line XX of FIG. 1, and FIG. 4 is a reduced sectional view taken along line Y ₁ -Y _{1 of} FIG. 4, and FIG. 4 is a perspective view of a main portion of the lower suction head 26. 1 to 4, a lower suction head 26 communicating with the lower suction port 3 is disposed immediately below the draft device D, and its front end portion is close to the calender roller 25. The width of the lower suction head 26 is longer than the length of the action portion of each of the rollers R _{1 to} R ₉ , and corresponds to the distance between the pair of roller stands 6. The front end portion of the lower suction head 26 is provided with a projecting portion 27 projecting obliquely upward, and a partial blocking member 28 is attached along the longitudinal direction at the central portion in the width direction of the entire opening thereof. A part of the opening of 27 is closed, and the first and second openings 26a and 26b are formed separately. The first opening 26 a faces between the bottom rollers R ₆ and R ₇ which are the maximum draft portions, and the second opening 26 b faces the gatherer 23. A third opening 26c is provided at the lower end of the inclined wall portion 27a of the protrusion 27 for sucking trash accumulated in the corresponding portion, and the third opening 26c is provided upstream of the third opening 26c. A fourth opening 26d is provided for sucking the cotton dust generated in the draft portion on the upstream side of the maximum draft portion. The third and fourth openings 26c and 26d are both provided in the width direction of the lower suction head 26. Further, on the upstream side of the fourth opening 26d, a pair of fifth openings 26e for collecting the cotton dust generated in the sliver guide (not shown) are provided along the width direction of the lower suction head 26. It is provided at a predetermined interval in the longitudinal direction. Further, a lower portion of the front end surface of the lower suction head 26 is provided with a sixth opening 26f for generating an airflow flowing along the upper surface of the roller beam 5.

Then, when the dampers (not shown) provided in the lower duct 15 and the top duct 16 respectively set the suction amount of the lower suction port 3 to be larger than that of the upper suction port 4, the lower suction head The suction airflow extending from each of the openings 26a to 26f of 26 to the air intakes 1 and 2 is higher than the suction airflow extending from each of the openings 18a to 18c of the top suction head 18 to the air intakes 1 and 2, so that the draft device D Most of the air flow passing through the portion of (6) flows into the lower suction head 26. However, as described above, the openings 26a and 26b of the lower suction head 26 face the maximum draft portion and the gatherer 23 portion, which are the portions in the drafting device D in which the dust is most frequently generated. Therefore, a large amount of fly wastes generated in this portion is immediately sucked and collected through the first and second openings 26a, 26b of the lower suction head 26. Also in each of the openings 26c to 26f other than the first and second openings 26a and 26b, the cotton dust floating in the vicinity of the openings 26c to 26f due to the strong suction airflow is effectively sucked and recovered. To be done.

Further, FIGS. 5 and 6 show another embodiment of the present invention. In this embodiment, a duct 32 is connected to an air intake 31 provided in a front portion of a cover C, and an opening 32a thereof is located at a side and a front side of a draft device D, and an upper portion (that is, a draft). (The portion obliquely above the device D) is arranged with its upstream side facing. In this embodiment, since the drawing machine is a 2-delivery drawing machine, ducts 32 are attached at a total of three positions between the draft devices D and on the sides thereof. When the duct 32 is attached in this manner, the suction airflow from each opening of the lower suction head 26 to the opening 32a of the duct 32 is smaller than that from each opening of the top suction head 18 to the opening 32a of the duct 32. In order to win, the airflow from the opening 32a of the duct 31 to the first and second openings 26a, 26b of the lower suction head 26 flows from the upper side to the obliquely lower side, and the drafts D generate most of the cotton dust. In order to pass through each part that is easy to perform, the dusts generated in large amounts in the maximum draft part and the part of the gatherer 23 are sucked and collected more effectively.

[0013]

[Effect of device]

 The present invention relates to a cleaning device configured to generate a suction airflow from an air intake provided in a cover to lower and upper suction ports to suck and collect cotton dust generated in a draft device in the cover. A lower suction head that communicates with the lower suction port is provided just below the draft device, and a portion of the lower suction head that faces the fleece focusing portion of the draft device and each of the bottom portions that form the maximum draft portion. The openings are provided at least at two places, the part facing between the mullers, and the suction amount of the lower suction port is set to be larger than that of the upper suction port. The flies generated between the pair of rollers forming the fleece converging part or the maximum draft part are stored in the lower suction head due to the strong suction airflow reaching the openings. With the Chi the suction recovery, airflow with Kazewatarui without flowing upwardly or laterally of the draft device, quickly flows downwards, it is sucked and recovered to the opening of Roasakusho Nheddo. As a result, the air flow accompanied by the cotton dust does not flow to the upper side or the lateral side of the draft section, and the cotton dust is not caught on each component constituting the draft device. As a result, the cleaning cycle inside the cover is lengthened, the time and effort required for cleaning are greatly reduced, the life of each component that constitutes the draft device is extended, and a mass of cotton wool falls into the fleece and mixes. The quality of the spun product also increases.

[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 a Y ₁ -Y ₁ line reduced cross-sectional view of FIG. 2;

4 is a perspective view of a main part of a lower suction head 26. FIG.

FIG. 5 is a side sectional view of a drafting machine having a draft device equipped with another cleaning device according to the present invention.

6 is a Y ₂ -Y ₂ line reduction sectional view of FIG.

FIG. 7 is a side sectional view of a kneading machine having a draft device equipped with a conventional cleaning device.

8 is a cross-sectional view taken along the line Y'-Y 'of FIG.

9 is a front view of the draft device D. FIG.

[Explanation of symbols]

C: Cover D: Draft device R _{1 to} R ₅ : Top roller R _{6 to} R ₉ : Bottom roller 1, 2, 31: Air intake port 3: Lower suction port 4: Upper suction port 26: Lower suction head 26 a: Maximum Aperture facing the draft part 26b: Aperture facing the gatherer

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 lower suction port and an upper suction port connected to an intake source are provided below and above the draft device, respectively. A draft device configured to generate a suction airflow extending from the lower suction port and the upper suction port to each of the air intake ports in the cover, and sucking and collecting the cotton dust generated by the draft device by the suction airflow. In the cleaning device, the lower suction head communicating with the lower suction port is provided immediately below the draft device, and the portion facing the roller pair constituting the maximum draft portion of the lower suction head and the fleece converging portion are provided. Opening is provided in at least two places with the facing part,
Moreover, the suction amount of the lower suction port is set to be larger than that of the upper suction port, so that the cotton dust generated in each of the above parts of the draft device can be collected in a concentrated manner. Cleaning device. 2. A duct which leads to an air intake provided in the cover is installed in the cover, and the opening is arranged obliquely above the draft device and directed toward the upstream side, so that the duct is passed through. The cleaning device for a draft device of a spinning machine according to claim 1, wherein the cleaning device is configured to generate an airflow toward the opening of the lower suction head.