JPH07138817A - Method and device for assisting fiber opening dust removal using high-voltage electrostatic - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a method and an apparatus for assisting the opening and dust removal by using a kind of high-voltage electrostatic. [Structure] One high-voltage power supply unit 1, rollers 7 and 8 (5 to 15) covered with a set of cloth, a set of transmission motor and an air suction device are included. The raw cotton cloth sent from the cotton cloth feeding device is transmitted to the cloth cloth rollers 7 and 8 by the feed roller 6, and receives the acting force of the cloth cloth and the pulling force due to the difference in roller speed. Further, a high-voltage electrostatic field between the rollers 7 and 8 acts on the raw cotton, and the raw cotton is stretched until it comes close to a single fiber state, and dust inside is dropped. In this way, a non-impact type fiber opening action is given to the raw cotton and a dust removing action is achieved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for accelerating fiber opening and dust removal by utilizing a kind of high voltage electrostatic, the main principle of which is to apply an electrostatic electric field between rollers by a high voltage potential, With respect to the acting force of the above and the speed difference between the rollers against the tension of the fibers, the clumps of fibers are separated into a state close to a single fiber type, and the fiber opening and dust removing effect is exhibited.

As shown in FIG. 1, the principle of application of electrostatics is that when a solid is intervened by a high voltage electricity of 2 kV to 50 kV (generating a uniform electric field) between two parallel electrode plates, a dielectric is generated. ) Has a non-zero dielectric constant, it causes an electrostatic induction action, accumulates electric charges at both ends of the fiber, and forms an attractive force between each other. As shown in FIG. 2, when the electric field strength exceeds a certain value, the fibers are immediately attracted to be in a pulled state (short fibers exist as a bridge type). This is the working situation in the electric field of the fiber.

[0003]

2. Description of the Related Art Speaking from the mechanism of opening and removing dust in a blowing room in a current spinning factory, as shown in FIG. Is held, and the other end achieves a fiber-opening dust removal effect by a striking action.
Fiber damage and cotton grain increase relatively, so in order to prevent fiber damage and reduce the occurrence of cotton grains to a certain level or less, it is necessary to perform opening dust removal by the impact method. It will be quite difficult.

[0004]

In view of the above, the present invention has completed a kind of non-hit type opening mechanism as a result of earnest research.
It has a large industrial utility value.

As shown in FIG. 4, the clothing on the rollers causes a difference in speed between the rollers due to the action of the front and back surfaces of the needles. ,
It provides the action of stripping, migrating and subdividing the clumps of fibers so that the fibers can be stretched to a state close to monofilament, but the action of the needle cloth still damages the fibers (intervals). Is too small), and also causes cotton grains, if the spacing between the rollers is increased,
It can reduce the damage of fibers and the generation of cotton granules, but the migration becomes difficult and it becomes impossible to proceed until it becomes severe. Therefore, the main purpose of the present invention is to achieve the purpose of opening and dust removal by designing to promote the gripping, loosening, guiding and pulling of fibers in a high voltage electric field. The mechanism is, as shown in FIG. 5, when the fiber mass moves between the rollers, it is pulled by the high-voltage electric field and is pulled upright. Since the fiber is pulled like a method of naturally pulling by hand between them, it is possible to appropriately open the fiber and achieve the effect of dust removal.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The flow of the complete mechanism is as shown in FIG. 6, in which the raw cotton enters the first roller 8 through the feed roller 6 and moves forward by the action of the cloth on the roller. Power supply 1 between the second and second rollers 7
Under the action of the high voltage electric field and the difference in roller speed provided by the roller, it is pulled and moves forward to reach on the second roller, and is gripped by the cloth needle on the second roller,
During this period when the second and third rollers have the same action, the fiber lumps complete the dust removing action by the fiber opening action, and the dust fall is collected in the dust collecting sections 3, 4, 5. Then again between the third, fourth and fifth rollers,
The second opening and dust removing operation is performed by the relative action as between the second and the third. Dampers are installed between the rollers to accelerate the dust fall. According to this dust removal mechanism, the dust removal efficiency reaches about 50 to 70%, and the increase situation of cotton grain is about 60% or less (generally, the increase situation of cotton grain is from the original cotton to the period before carding cotton). About 80-1
It will increase by about 20%). The fiber ratio contained in the dropped dust is about 10% or less. The maximum speed of the roller is about 100
It is 0 RPM. The raw cotton can be sent to the next machine by the exhaust equipment after being subjected to the opening and dust removal twice, and can be connected integrally with the actual production line on the site, and can be used as an automatic cotton feeding system. If it is necessary to further strengthen the dust removal, the number of the two rollers can be increased, and the number of separations of foreign matters can be increased to improve the dust removal effect.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a principle to which electrostatic is applied.

FIG. 2 is a drawing of a fiber suction state in which electrostatic is applied.

FIG. 3 is a diagram of a conventional fiber-opening dust removal mechanism.

FIG. 4 is a diagram of an opening mechanism of the present invention.

FIG. 5 is a device diagram of the present invention.

FIG. 6 is a flow sheet of the present invention.

[Explanation of symbols]

 1 Power supply device 3, 4, 5 Dust collection area 6 Feed roller 7, 8 roller

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location D04H 1/72 Z 7199-3B

Claims (3)

[Claims] 1. An electrostatic field mainly applying a high voltage potential between the rollers, the acting force of the fiber clumps, the speed difference between the rollers and the tension of the fibers, and the clumps of the fibers approximate to a single fiber state. In order to have the effect of opening and removing dust by separating them, the device is one high voltage power supply device in order.
A method and apparatus for assisting fiber opening dust removal using high-voltage electrostatics including a set of cloth-covered rollers, a set of electric motors, and an air suction device. 2. The sequence is as follows: the raw cotton enters the first roller via the cotton feed roller and moves forward by the action of the cloth cloth roller, the high voltage electric field and the roller speed between the first and second rollers. Stretched under the effect of the difference of, moves to the second roller toward the front, is grasped by the clothing on the second roller,
In addition, the same action of the second and third rollers causes the fiber mass to complete the dust removing action by the opening action, and after that, the fibers are further moved between the third, fourth and fifth rollers. By the same relative action as between the first, second and third rollers, dust opening and dust removal is performed again, and a damper (da
The method and device for assisting the opening dust removal by using the high-voltage static electricity according to claim 1, wherein the dust removal amount is increased by providing a mper). 3. The number of rollers set can be increased, and the number of separation of foreign matters is increased to improve the dust removing effect.
A method for assisting fiber-spreading dust removal by using high-voltage static electricity according to claim 1, and an apparatus thereof.