JPH037409Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a clearer device in a draft section of a spinning machine.

[Conventional technology]

Fiber waste such as short fibers and dust tends to adhere to the draft section of a spinning machine, and a clearer device is provided to remove the fiber waste.

Various types of clearer devices have been developed, such as those in which an endless belt runs in contact with a draft roller, and those that include a suction device.

[Problem that the invention aims to solve] However, in the case of something that has a mechanical movement effect, such as the one that runs the endless belt mentioned above,
Naturally, a drive source is required, so a run shaft as a drive source must be passed very close to the draft section, or an actuator such as a motor must be installed for each spindle. Problems such as ducts and manifolds having to be installed very close to the draft section complicate the structure near the draft section, and there is no space around the draft section, making maintenance work difficult. It was hot.

This idea solves the above problem.

[Means for solving problems]

In this invention, a brush roller having a large number of raised brushes on its surface is provided in rolling contact with two of the plurality of draft rollers. Therefore, it is proposed to drive the brush roller.

〔Example〕

FIG. 1 is a side view of a draft section 2 of a spinning machine equipped with a fiber waste cleaning device 1 including a clearer device 14 according to this invention. A so-called three-wire draft section 2 consisting of a top apron belt 9 and a bottom apron belt 10 suspended around the bottom rollers 5, 6, the front rollers 7, 8, and the middle rollers 5, 6;
Air injection nozzle 1 provided after the draft section 2
This is a pneumatic spinning machine consisting of a winding device (not shown) located at a later stage. A large number of spindles consisting of the above-mentioned parts are arranged in a direction perpendicular to the drawing.

Reference numeral 12 denotes a cradle 13 rotatably supported by a frame (not shown) of the spinning machine, and each of the draft rollers 3, 4, 5,
The upper rollers 3, 5, and 7 among the rollers 6, 7, and 8 are supported.

In this example, a clearer device 14 of the draft section 2 is supported by the cradle 12, and a fiber waste recovery device 15 peels off and collects fiber waste attached to the clearer device 14.
is movably supported by a channel member 16 extending above the spinning machine in the direction in which the multiple spindles are arranged (direction perpendicular to FIG. 1).

The clearer device 14 and recovery device 15 will be explained in detail below.

That is, as shown in plan view in FIG. 2, the clearer device 14 includes a U-shaped receiving member 17 fixed to the side surface of the cradle 12, and a support shaft 19 in a notch 18 at the distal end of the receiving member 17. It consists of a cylindrical roller 20 whose both ends are rotatably supported, and a belt having a large number of naps 21 tilted in one direction is wrapped around the entire outer periphery of this roller 20. The outer periphery of 20 is provided so as to be in rolling contact with both the outer periphery of the bag roller 3 and the apron belt 9. That is, the roller 20 is a brush roller. 22 is a hairpin-shaped leaf spring that presses the support shaft 19 in the direction of arrow A.

The brush roller 20 is pressed more strongly against the cross roller 3 side by the action of the leaf spring 22, and rotates at approximately the same circumferential speed as the rotational speed of the cross roller 3, and runs at a circumferential speed approximately 5 to 10 times higher. For the apron belt 9 that is
1 relatively slides in contact with the surface of the apron belt 9 in a direction in which the raised naps 21 stand on end, thereby scraping off fiber waste on the surface of the belt 9.

Further, the U-shaped receiving member 17 is fixed to the cradle 12 so that its position can be adjusted as follows. The rolling contact interval is changed and adjusted, and the roller 20 comes into relatively strong pressure contact with the back roller 3, and is driven into rolling contact by the back roller 3, and the apron belt 9
A relatively weak pressure contact state suitable for scraping off fiber waste can be achieved.

That is, a planar L-shaped connecting plate 24 fixed to the back surface of the U-shaped receiving member 17 via one tightening bolt 23 has one protrusion 25 formed therein. Insert into the elongated hole 27 made in the bracket plate 26 fixed to the side of the cradle 12, screw in the tightening bolt 28 through the elongated hole 27 and the connecting plate 24, and tighten the tightening bolt 28. The U-shaped receiving member 17 is fixed to the cradle 12, but if the tightening bolt 28 is loosened, the U-shaped receiving member 17 becomes movable along the elongated hole 27, resulting in a draft of the roller 20. The position relative to part 2 is changed.

Also, if the tightening bolt 23 is loosened, the U-shaped receiving member 17 can be moved against the connecting plate 24 by the bolt 23.
The rolling contact pressure or the rolling contact interval of the roller 20 against the bag roller 3 and the apron belt 9 can be adjusted to be equal on the left and right sides (in the direction of the axis 19 of the roller 20).

The clearer device 14 of this example is composed of the cylindrical roller 20 that is in rolling contact with the bag roller 3 and the apron belt 9 and is rotationally driven by the bag roller 3 as described above.
rotates at the same relatively low circumferential speed as the cross roller 3, and scrapes off fiber waste on the belt 9 due to the speed difference with the surface of the apron belt 9, but due to the rolling contact between the cylindrical roller 20 and the cross roller 3 roller 2
0, but if the roller 20 is rotationally driven by another intermediate transmission means whose circumferential speed is further reduced by another gear (not shown) meshing with the back roller 3, the circumferential speed of the roller 20 is The speed of the back roller 3 is also low, and a speed difference occurs between them, so that the fiber waste on the surface of the back roller 3 can also be scraped off by the roller 20.

Next, the recovery device 15 will be explained.

That is, the recovery device 15 of this example includes a movable frame 30 that is movable along the channel material 16;
an endless belt 33 having a slanted nap 32 made of the same material as the surface of the roller 20, which is movably provided on a pair of left and right bearing plates 31 extending upward from the moving frame 30 to the draft portion 2; and the moving frame. 30
and an endless belt 34 that runs through the channel material 16 as a common driving source for driving the movement on the channel material 16 and driving the endless belt 33 to travel (FIGS. 1 and 3). 35 is moving frame 3
Roller wheels 36, 37, and 38 that roll into contact with the upper surface of the channel material 16 provided on the upper part of the moving frame 30 are roller wheels that roll into contact with the side surfaces of the channel material 16 provided above and below the moving frame 30, and the roller wheels 35,
36, 37, and 38, the movable frame 30 is reliably supported by the channel material 16 and is movable.

The endless belt 34 is located between an output shaft pulley 40 of a reversible motor 39 provided at one end of the channel material 16 (that is, one end of the spinning machine) and a driven pulley (not shown) provided at the other end of the channel material 16. The moving frame 30 is stretched across the endless belt 34.
It engages with the upper horizontal traveling part of the belt via an engaging device 41, which will be described later, and moves on the channel material 16 as the endless belt 34 travels.

A limit switch (not shown) is provided at both ends of the channel material 16, which is kicked when the movable frame 30 reaches the limit switch, and when the limit switch is turned on, the reversible motor 39 switches the rotation direction, and the direction in which the belt 34 runs is changed. is reversed, and as a result, the moving frame 30 automatically moves back and forth on the channel material 16.

The engagement device 41 moves the channel material 1 from the moving frame 30.
6 A backing plate bracket 42 protruding toward the inside
A lever 44 is provided to be swingable around a horizontal shaft 43 with respect to the moving frame 30, a pressing member 46 is pivotally supported at one end of the lever 44, and a tension spring 47 is applied to the other end of the lever. The endless belt 34 is located between the pressing member 46 and the backing plate bracket 42, and the lever 44
is constantly tensioned and biased by the spring 47, so that the pressing member 46 and the backing plate bracket 42 strongly clamp the belt 34, and the friction caused by the clamping force causes the belt 34 and the moving frame 30 to come together. They are designed to engage.

Therefore, the moving frame 30 is connected to the channel material 16.
If an unexpected obstacle (such as a worker) that obstructs the movement of the movable frame 30 appears during the above-mentioned travel, the movable frame 30 will immediately stop at the relevant location, the endless belt 34 will continue to run idle, and the drive source (Motor 39)
The motor 39 is installed on the side or in the drive transmission system (belt 34).
This prevents malfunctions such as burnout of the belt 34 and breakage of the belt 34, and also does not give a large impact to the worker if the worker is an obstacle.

Next, a drive transmission system between the endless belt 33 and the endless belt 34 will be explained.

That is, of the pair of rolls 48 and 49 on which the endless belt 33 is wound, the shaft 50 of the upper roll 48 in FIGS.
A transmission shaft 54 that protrudes into the channel material 16 through the side surface of the moving frame 30 is interlocked with the transmission shaft 54, which is fixed to the transmission shaft 54.
It is engaged with the lower horizontal running portion of the endless belt 34 (FIGS. 3 and 4).

The roll 48 rotates due to the engagement between the pulley 55 and the running endless belt 34, and the endless belt 33 runs. As shown in FIG. 4, the endless belt 34 is connected via one-way clutches 56 and 57, and even by switching the running direction of the endless belt 34 as described above, the endless belt 33
is always driven to run in a direction in which the raised naps 32 on the surface of the roller 20 stand upwardly on the surface of the roller 20.

That is, the one-way clutches 56, 57 are
When the transmission shaft 54 rotates in the direction B in FIG. 3, the bevel gear 52 and roll shaft 50 are fixed, and the bevel gear 51
becomes free, and when the transmission shaft 54 rotates in the direction C in FIG. 3, the bevel gear 51 and roll shaft 50 are fixed, and the bevel gear 52 is interposed so that it becomes free.

Further, both ends of the driven side roll 49 are formed into a tapered shape as shown in FIG. The guide plate 58 is fixed, and the endless belt 33 runs above the clearer device 14 with both ends slightly bent upwards, thereby facilitating the collection. Even when the device 15 reciprocates in the direction in which the spindles of the spinning machine are arranged (a direction perpendicular to FIG. 1), the belt 33 is not caught by the rollers 20.

Since this embodiment has the above-mentioned structure, the roller 20 provided on each spindle and having the nap 21 on the outer periphery rotates automatically as the draft section 2 of the spinning machine operates. Scrape off the fiber waste on the surface of the apron belt 9.

Then, the scraped fibers adhering to the roller 20 are collected by the collecting device 15 that moves on the draft portion 2 along the longitudinal direction of the spinning machine.

That is, as the moving frame 30 moves, the endless belt 33 travels in the direction of the arrow in FIG. 1 and lightly contacts the upper end of the roller 20 (FIG. 1). roller 20
The fiber waste on the surface is scraped off and adheres to the endless belt 33.

The fiber waste adhering to the endless belt 33 is further scraped off by a reciprocating scraper 60 provided above, and collected in a dust box (not shown) by a suction nozzle 61.
0. Even if the suction nozzle 61 is not provided, the endless belt 33 is long enough and runs at a low speed, so the operator can collect fiber waste from the endless belt 33 at relatively long intervals. Good.

Note that as a source of reciprocating motion for the scraper 60, a small motor may be provided separately, or the roll shaft 50 may be used.

[Effect of idea]

As described above, in the clearer device according to this invention, there is no need to newly provide a drive source in the draft section, so the structure of the draft section does not become complicated, and the layout around the draft section can be given more leeway.
Maintenance work is easy.

In addition, in the present invention, the brush roller is less pressed against the top apron belt and more strongly pressed against the back top roller to rotate the brush roller. Since no extra load is applied to the top apron, fiber waste on the top apron can be removed without causing slips between the top apron and the bottom apron.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of the draft section of a spinning machine equipped with a fiber waste cleaning device including a clearer device according to this invention, and Fig. 2 is a plan view of the clearer device (a view taken along the line - in Fig. 1). , Fig. 3 is a front view of the collection device, Fig. 4 is a sectional view taken along the - line in Fig. 3, and Fig. 5 is a front view of the collection device.
The figure is a front view of the guide member. 2... Draft portion, 3... Back top roller, 5... Middle roller, 9... Top apron belt, 14... Clearer device, 17... Receiving member, 20... Brush roller, 21... Raised.

Claims (1)

[Scope of utility model registration request] A clearer device in which a brush roller having a large number of naps on its surface is brought into rolling contact with a back top roller and a top apron in the draft section of a spinning machine, the brush roller having a rolling contact interval with the back top roller and a top apron. It is fixed to the cradle so that the contact interval between the two can be adjusted freely.
and a spring that presses the shaft of the brush roller toward the back top roller, and the brush roller is driven to rotate while being strongly pressed against the top apron, and is in relatively weak pressure contact with the top apron; A clearer device for a draft section of a spinning machine, characterized in that it scrapes off fiber waste on the surface of the top apron.