JPH07197332A - Cleaning apparatus of draft roller - Google Patents

Abstract

PURPOSE:To obtain a cleaning apparatus of a draft roller capable of preventing the winding of fly waste on a draft roller, having simple structure and enabling easy maintenance of a draft apparatus. CONSTITUTION:This cleaning apparatus is provided with a blowing apparatus for blowing air against a draft roller. The blowing apparatus can be contacted with and separated from the draft roller. The blowing apparatus is directed toward the circumference of the draft roller and air is blown parallel to the axial direction of the draft roller.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a draft roller cleaning device in a draft device.

[0002]

2. Description of the Related Art Conventionally, when a sliver is drafted by a drafting device of a spinning machine, the short fibers separated from the sliver are wound around the draft roller as wind wool, and the short fibers are further attached to the wind cotton to wind. As the cotton grows, uneven draft, yarn breakage, etc. occur, so it was necessary to clean the draft roller regularly to remove the cotton wool.

Therefore, in order to remove the fly dust, a cleaning member such as a rotating endless cleaning belt or a cleaning roller is brought into pressure contact with each top roller or each bottom roller of each draft roller pair of the draft device. There is known a cleaning device that displaces and removes the cotton wool attached to the cleaning member from the cleaning member. However, in the case where such a cleaning device is provided on each top roller, the cotton wool attached to the cleaning member is again removed. Since the comb and the cleaning belt for scraping and removing are stretched with an appropriate tension and a driving means for driving is required, the apparatus becomes complicated,
There was a problem that maintenance of the draft device was difficult.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the conventional cleaning device. It is possible to prevent the cotton wool from winding around the draft roller, and the draft device has a simple structure. It is an object of the present invention to provide a draft roller cleaning device capable of easily performing maintenance of the above.

[0005]

An injection device for injecting air toward a draft roller is provided. The above-mentioned injection device can be brought into and out of contact with the draft roller. Further, the above-mentioned injection device is configured to inject air toward the peripheral surface of the draft roller in parallel to the axial direction of the draft roller.

[0006]

[Function] The cotton fly that winds up on the delivery side of the draft roller is
It is blown off from the peripheral surface of the roller by the action of the blast air, and its growth is prevented. At this time, if the air jet direction is made parallel to the draft roller axial direction, the jet air does not hit the sliver and sliver disturbance is prevented. When performing maintenance on the draft device, the ejection device is lifted above the draft roller to perform the maintenance.

[0007]

Embodiments will be described with reference to the drawings.

FIG. 1 shows an example in which the cleaning device 1 of the present invention is applied to each top roller of a four-wire draft device 2. In the figure, the draft device 2 comprises four lines of a back roller pair 3, a third roller pair 4, a middle roller pair 6 on which an apron belt 5 is mounted, and a front roller pair 7, and 8 is a sliver guide.

Each top roller 3t, 4 of the draft device 2
Each of t, 6t, and 7t is rotatably supported by a draft cradle 9, and the draft cradle 9 is swingably supported by a support shaft 10 fixed to a machine frame by a bracket (not shown). Top rollers 3t, 4
t, 6t, 7t are set to the bottom rollers 3b, 4b, 6b, 7
It is locked while being pressed against b. Reference numeral 11 is a side plate provided with a guide groove (not shown) that restricts the movement of the shaft of each top roller in the pressing direction.

The cleaning device 1 includes an air supply pipe 12 provided in parallel along the draft cradle 9 and a branch from the air supply pipe 12 so that the top rollers 3t, 4t,
Four air injection pipes 13, 14 and 1 provided every 6t and 7t
It is composed of 5,16.

The air supply pipe 12 has rigidity enough to support itself, and a bracket 17 is provided at the base end side thereof.
Is swingably supported by the support shaft 10 of the draft cradle 9 and is locked by a pin 18 protruding laterally from the side plate 11 at the tip 12a. The base end portion 19 of the air supply pipe 12 is connected to a blower (not shown) via a flexible pipe 20. Advantageously, the blower uses an exhaust port of a main blower for sucking air, such as a dust collector or a slack tube.

The air injection pipes 13, 14, 15, 16 are arranged such that the tip ends of the air injection holes 23, 24, 25, 26 are close to the delivery side peripheral surfaces of the top rollers 3t, 4t, 6t, 7t. The air injection holes 23, 2
The air blowing direction from 4, 25, 26 is parallel to the axial direction of each top roller 3t, 4t, 6t, 7t. The air injection hole 25 is located laterally close to the tip side surface of the apron belt 5 mounted on the middle top roller 6t.

Next, the operation will be described based on an embodiment.

The air sent from the blower (not shown) to the air supply pipe 12 through the flexible pipe 20 is supplied with air injection holes 23, 14 at the tips of the air injection pipes 13, 14, 15, 16.
From 24, 25, 26, each top roller 3t, 4t, 6
It is jetted toward the t, 7t peripheral surface (the surface of the apron belt 5 in the middle top roller 6t).

When the sliver S supplied through the sliver guide 8 is drafted in the drafting device 2, the short fibers separated from the drafting sliver S are shown in FIG. Three
When attached to the delivery side of t, 4t, 6t, and 7t and rolled up, the short fiber f forms the air injection holes 23, 24, and 2 above.
By blowing the air jetted from 5, 26 toward the peripheral surface of each top roller from the side, the air is blown off from the peripheral surface of the top roller as indicated by f ′ and removed. That is, the cotton wool is the top rollers 3t, 4
It does not happen that the filaments are wound around t, 6t, 7t and short fibers are further attached to the fly cotton to grow.

Further, the air injection holes 23, 24, 25,
By placing 26 on the side of each top roller 3t, 4t, 6t, 7t and making the air blowing direction parallel to the top roller axial direction, the air acts at a right angle to the wind flies, and Not only the cotton is effectively blown off from the peripheral surface of the top roller, but also the air does not hit the sliver S being drafted, so that the sliver S is not disturbed by the air injection.

When performing maintenance of the draft device 2, the air supply pipe 12 is swingably supported by the bracket 17 and the common support shaft 10 with the draft cradle 9, so that the draft cradle 9 is raised. When it is opened by opening, the cleaning device 1 is also lifted together with the draft cradle 9. Also, the side plate 1
1 or the top rollers 3t, 4t, 6t, 7t are replaced by raising only the cleaning device 1 around the support shaft 10 so that each top roller 3
Since it is possible to separate from t, 4t, 6t, and 7t, the maintenance work can be easily performed.

In the above-mentioned embodiment, the air injection pipes 13, 14, 15, 1 which are branched by the air supply pipe are provided.
Although the case where the air injection holes 23, 24, 25, 26 are opened at the tip of 6 is shown, the air injection holes can be directly formed in the air supply pipe 12 by appropriately changing the position or shape of the air supply pipe 12. It is also possible to open. Further, the present invention is
It should be added that not only each top roller 3t, 4t, 6t, 7t but also each bottom roller 3b, 4b, 6b, 7b can be implemented.

[0019]

Since the draft roller cleaning device of the present invention is constructed as described above, the following effects can be obtained.

Since the jetting device for jetting air toward the draft roller is provided, it is possible to prevent the cotton wool from being wrapped around the draft roller.

Further, since the above-mentioned jetting device is provided so as to be able to come into contact with and separate from the draft roller, it is possible to easily perform maintenance of the draft device.

Further, since the above-mentioned jetting device is designed to jet air toward the peripheral surface of the draft roller in parallel with the axial direction of the draft roller, the cotton wool wound on the delivery side of the draft roller is surely blown off, Not only is it possible to prevent the fly dust from being wound around the draft roller, but also because the blast air does not hit the sliver, the blast air does not disturb the sliver.

[Brief description of drawings]

FIG. 1 is a perspective view showing a draft device including a cleaning device according to an embodiment of the present invention.

[Explanation of symbols]

 1 Cleaning Device 2 Draft Device 3t, 4t, 6t, 7t Top Roller 9 Draft Cradle 10 Spindle 11 Side Plate 12 Air Supply Pipe 13, 14, 15, 16 Air Injection Pipe 17 Bracket 23, 24, 25, 26 Air Injection Hole S sliver f, f'skin (short fiber)

Claims (3)

[Claims] 1. A cleaning device for a draft roller, comprising an injection device for injecting air toward the draft roller. 2. A cleaning device for a draft roller, wherein an injection device for injecting air toward the draft roller is provided so as to be able to come into contact with and separate from the draft roller. 3. A cleaning device for a draft roller, wherein an injection device for injecting air toward the peripheral surface of the draft roller in parallel to the axial direction of the draft roller is provided so as to be contactable with and separated from the draft roller.