JPH04214417A - Opening and cleaning apparatus of textile materials, especially cotton - Google Patents

Abstract

PURPOSE: To make diameter of clothed rollers nearly equal, simplify the production and further improve dust removing effect in opening and dust-removing apparatus for fiber material, especially cotton. CONSTITUTION: This apparatus for opening and dust-removing a fiber material, especially cotton has at least three clothed rollers arranged in the rear step of a feed device and at least one impurity separation edge having separation opening is provided in at least two clothed rollers and centrifugal force of peripheral surface of the downstream clothed roller is larger than the centrifugal force of upstream clothed roller and clothed rollers are mutually longitudinally arranged. In the apparatus, the downstream clothed roller is cooperated with the upstream roller as a doffing and opening roller. In order to allow simple manufacture of the apparatus and to achieve an improved dust-removing action, the diameters of rollers are the same or almost the same and each clothed roller is assigned at least one separating edge for impurities having an associated separating opening.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention comprises at least three clothed rollers arranged downstream of a feeding device, and at least one impurity separating edge with separating openings on at least two clothed rollers. The centrifugal force on the circumferential surface of the rear cloth roller is greater than the centrifugal force of the front cloth roller, the cloth rollers are arranged one behind the other, and the latter cloth roller is higher than the front cloth roller. The present invention relates to a device for opening and removing dust from textile materials, in particular cotton, which acts in cooperation with cloth rollers as take-off and opening rollers, respectively.

0002

BACKGROUND OF THE INVENTION In known devices, three clothed rollers are provided which are arranged one behind the other, the diameters of the first clothed roller and the adjacent clothed roller being of different sizes. . The central clothed roller is surrounded by a housing without separating openings and separating edges. Different roller diameters lead to increased manufacturing costs.

0003

SUMMARY OF THE INVENTION It is, therefore, an object of the present invention to eliminate the above-mentioned drawbacks and to provide a device of the type mentioned at the outset, which is particularly simple to manufacture and has a high dust removal effect. It is.

0004

The above object is achieved according to the invention by the features of claim 1.

[0005]

Effect: By making all clothing rollers the same or approximately the same diameter, manufacturing is simplified. Each clothed roller is provided with an impurity separation edge with separation openings, which improves the dust removal effectiveness of the device.

Preferably, the direction of rotation of each subsequent clothed roller is opposite to the direction of rotation of the preceding clothed roller. Preferably, the circumferential speed of each subsequent clothed roller is greater than the circumferential speed of each preceding clothed roller. Preferably, the number of tips of the clothing of each subsequent clothed roller is greater than that of the clothing of each preceding clothed roller. Preferably, each clothed roller is provided with at least one stationary carging member with cloth. Preferably a feeding device (
The fiber supply device (fiber supply device) is provided with a supply roller and a supply tank that rotate at low speed. Preferably a feeding device (fiber feeding device)
and the first clothed roller are provided with at least one pin roller, needle roller, full pin roller, etc. Thereby, the device has a built-in primary dust removal device. Preferably, the first clothed roller is provided with a fiber mass feeder having a feed tube. A pneumatic fiber suction device is provided on the last clothed roller, which preferably has a higher circumferential speed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below using examples shown in the drawings. The material to be dedusted, in particular cotton, is supplied to the dedusting device, which is arranged in a closed housing 1, in the form of a fiber mass. This takes place, for example, through a filling cylinder (not shown). The cotton is clamped by two feed rollers 3a, 3b and fed to a first clothing roller 4 which is rotatably mounted in the housing 1 and rotates counterclockwise (arrow A). A second clothing roller 5 is provided after the clothing roller 4.
and a third clothing roller 6 are arranged. Clothes roller 4
, 5, 6 are covered by sawtooth clothing, about 135~
It has a diameter of 215 mm, for example 175 mm. Roller 4 has a circumferential speed of about 15-21 m/s, e.g. 18 m/s, and roller 5 has a circumferential speed of about 19-25 m/s, e.g. 22 m/s.
The clothed roller 6 has a circumferential speed of approximately 23 to 30 m/s, for example 26.5 m/s.

The clothing rollers 4, 5, 6 are surrounded by a housing. The clothed roller 4 is provided with separation openings 7 for separating impurities from the fibers, the size of which can be adapted to the respective separation stage. The separating opening 7 is provided with a separating edge 8, for example a knife.

The third clothed roller 6 rotates at a higher rotational speed than the clothed rollers 4 and 5, and as shown, the cloth tip 6a of the third clothed roller 6 is connected to the clothed tip 5a of the second clothed roller 5. It is provided at the take-out position. The clothed roller 6 is therefore referred to as a take-off and opening roller due to its effect on the fiber material. The clothing tip 5a of the clothing roller 5 is in a take-out position relative to the clothing tip 4a of the first clothing roller 4, as shown in the figure. The centrifugal force acting on the textile material therefore rises from the clothed roller 4 to the clothed roller 6. Clothes roller 6
is connected to a cage drum (not shown) via a fiber transfer device 14. The fiber material is pneumatically transported by the air stream. The cage drum is connected to a suction device (not shown) to generate negative pressure inside. The negative pressure reaches the clothing roller 6 via the fiber transfer device 14.

Next, the functions will be explained. The cotton wrap consisting of the fiber mass is clamped by feed rollers 3a, 3b and fed to a first clothed roller 4, which combs the fiber material and brings the fiber tufts with the cloth. As the clothed roller 4 passes through a separating opening 7 with a separating edge 8, short fibers and Coarse impurities are released from the fiber material by centrifugal force and reach the waste bin in the housing 1 after passing through the separation opening 7. The fiber material previously dusted in this way is removed from the first clothed roller 4 by the clothed tip of the second clothed roller 5 and is then opened further.

When the clothed roller 5 passes through the separating opening 7 having the separating edge 13, other impurities are released from the fiber band by centrifugal force. The fiber material is then removed from the second clothed roller 5 by the clothed tip of the third clothed roller 6, in the process being further opened and passed through the separating opening 17 with the separating edge 18. As mentioned above, the centrifugal force generated in the third clothed roller is greater than in the case of the first clothed roller 4, so that finer dirt and dust particles contained in the textile material are removed in the separation opening 17. is separated from the fibrous material. By opening the textile material into individual fibers, or at least into very fine fiber masses, by means of the clothed roller 6, it is facilitated to separate these fine impurities from the textile material. The impurities and fiber parts separated at the separation openings 7, 12, 17 are preferably sucked off by a pipe conduit. This can be done continuously or discontinuously.

After passing through the separation opening 17, the fiber material is separated from the third clothed roller 6 by the air 25 flowing in through the suction slit 22 and the centrifugal force, and passes through the fiber transfer channel 23 to the cage roller ( Alternatively, a dust remover such as Dustex DX from Zürtzler can be used. Fine impurities and the finest impurities, such as dust and fiber fragments, pass through the perforated surface of the rotating cage rollers and are drawn into the suction air stream, and the fibers are deposited on the cage rollers, where they form a fiber fleece and the fibers The fleece is stripped from the cage drum and sent for further processing.

Arrow B indicates the direction of rotation of the cloth roller 5, and arrow C indicates the direction of rotation of the cloth roller 6. Denoted by 9, 14, 19 are separation openings 7.
, 12 to 17. Two stationary carging elements 10 and 11, 15 and 16 and 20 and 21 each having a clothing are arranged downstream of the separation edges 8, 13 and 18, respectively. Those indicated by symbols E and F are feed rollers 3
This is the rotation direction of a to 3b.

According to FIG. 2, a fourth cloth roller 26 is provided downstream of the third cloth roller 6.
The clothed roller is provided with a separating opening 27, a separating edge 28, a suction device 29 and two fixed carging elements 30, 31. The reference numeral D indicates the direction of rotation of the clothing roller 26. Above the clothing roller 4 is a fiber mass supply device,
For example, an Exactafeed FBK manufactured by Türützler is installed, and this fiber mass supply device is equipped with an upper storage cylinder 3.
3. A lower supply cylinder 34 and a drawing roller 35 that rotates at a low speed and a fiber opening roller 3 that rotates at a high speed are located between the two 33 and 34.
6 is provided. Two delivery rollers 37a, 37b are provided at the lower edge of the supply tube 34, and these rollers feed the fiber material 38 directly to the clothing roller 4.

According to FIG. 3, in front of the clothing roller 4, there are
A feeding device consisting of a feed roller 3 and a feed table 2 that rotate at low speed is provided. The symbol G indicates the rotation direction of the feed roller 3. Both the feed roller 3 and the clothing roller 4 rotate counterclockwise.

FIG. 4 shows an embodiment of synchronous feeding, in which the feed roller 3 rotates clockwise (arrow H) and the clothing roller 4 rotates counterclockwise (arrow A).

According to FIG. 5, feed rollers 3a, 3b
A pin roller 39 having a pin 40 is provided between and the first clothed roller 4 and rotates in the direction of arrow I. A grid 41 is arranged below the pin roller 39, and the impurities separated from the fiber material pass through the openings 41a of said grid.

According to FIG. 6, the pin 40 of the pin roller 39
is provided with a separating cutter 8, which is provided with a cutting edge 8' oriented opposite to the direction of rotation a of the pin roller 39. A separating opening 7 is provided in front of the separating cutter 8 when viewed in the direction of rotation A. Figure 6
According to the invention, a pin roller 39 and two sawtooth rollers (clothed rollers) 4 and 5 are arranged one behind the other.

In the device according to the invention shown in FIG. 7, a pin roller 39 and three cloth rollers 4, 5, 6 are arranged one behind the other.

[0020]

As is clear from the above description, according to the present invention, a dust removal device with good dust removal effect can be provided at a low cost.

[Brief explanation of the drawing]

1 is a side view of the device according to the invention with three clothing rollers; FIG.

FIG. 2 is a side view of a device according to the invention with four clothed rollers, upstream of which is a fiber mass feeding device with a feeding tube.

FIG. 3 is a partial side view of a feeding device having a feed roller and a feed table for feeding fibers to a first clothing roller;

FIG. 4 is a partial side view of a feed roller that feeds fibers synchronously with a first clothing roller;

FIG. 5 is a side view of a device having a built-in pin roller upstream of the clothing roller.

FIG. 6 is a side view of the device according to the invention with one pin roller and two clothed rollers;

FIG. 7 is a side view of the device according to the invention with one pin roller and three clothed rollers;

[Explanation of symbols]

4, 5, 6, 26...Clothing roller 7, 12, 17, 27...separation opening 8, 13, 18, 28...separation edge

Claims (13)

[Claims] 1. At least three clothed rollers arranged downstream of the feeding device, at least two clothed rollers being provided with at least one impurity separation edge with separating openings; The centrifugal force on the circumferential surface of the cloth roller is greater than the centrifugal force of the cloth roller at the front stage, the cloth rollers are arranged one behind the other, and the cloth roller at the rear stage cooperates with the cloth roller at the front stage. In an opening and dust removal device for textile materials, in particular cotton, which act as take-off and opening rollers, respectively, each clothed roller (4, 5, 6, 26) has an equal or approximately equal diameter, and each clothed roller (4, 5, 6, 26) The rollers (4, 5, 6, 26) have separation openings (7, 12, 7,
27) and at least one separating edge (8, 13, 18, 28) for separating impurities. 2. The rotation direction of the clothing rollers (4, 5, 6, 26) arranged at the rear stage is the same as the rotation direction of the clothing rollers (4, 5, 6, 26) arranged at the front stage, respectively. 2. Device according to claim 1, characterized in that it is oriented oppositely. 3. The circumferential speed of each of the clothed rollers (4, 5, 6, 26) arranged at the rear stage is higher than the peripheral speed of each clothed roller (4, 5, 6, 26) arranged at the previous stage. 3. The device according to claim 1 or claim 2, characterized in that: 4. The clothing (4a, 5a, 6a, 26a) of the clothing rollers (4, 5, , 26) arranged at the rear stage, respectively.
) of the clothing rollers (4, 5, 6, 26) arranged at the front stage, respectively (4a, 5a, 6).
4. A device according to any one of claims 1 to 3, characterized in that the number of cusps a, 26a) is greater than the number of cusps. 5. Each clothing roller (4, 5, 6, 26) has a fixed carging member (10, 11, 15) with clothing.
, 16, 20, 21, 30, 31). 6. The feeding device (fiber feeding device) according to claim 1, wherein the feeding device (fiber feeding device) is provided with two feed rollers (3a, 3b) rotating at a low speed. Device. 7. According to any one of claims 1 to 5, wherein the feeding device (fiber feeding device) is provided with a feed roller (3) rotating at a low speed and a feeding tank (2). The device described. 8. Claim 1, characterized in that at least one needle roller (39), pin roller, etc. is provided between the feeding device (fiber feeder) and the first clothing roller (4). 8. A device according to claim 7. 9. The first clothing roller (4) is provided with a supply tube (
9. Any one of claims 1 to 8, characterized in that a fiber mass supply device (32) having a fiber mass supplying device (34) is provided.
Equipment described in Section. 10. A pneumatic fiber suction device (22, 23) is attached to the last clothed roller (6, 26) with the highest circumferential speed.
) The device according to any one of claims 1 to 9, characterized in that it is provided with a. 11. At least one separating edge (8') on the pin (40) or on the needle of the pin or needle roller (39), oriented opposite to the direction of rotation (A) of the pin or needle roller (39). Claims 1 to 1 are characterized in that:
0. The device according to any one of 0. [Claim 12] Two rollers are installed after the needle roller (39).
12. Device according to claim 1, characterized in that two serrated rollers (4, 5) are provided. [Claim 13] Three rollers are installed after the needle roller (39).
13. Device according to claim 1, characterized in that three serrated rollers (4, 5, 6) are provided.