CN214782330U - Fiber preparation system of blowing workshop - Google Patents

Abstract

The utility model relates to a fibre preparation system in blowing workshop, it has a series of machines that are used for handling the fibre and is set up respectively be used for pneumatic fibre bundle transmission's transmission pipeline between the machine, at least one ion fan detachably sets up fibre preparation system on, ion fan or ion wind curtain blow off the ion wind to the fibre and eliminate the static on the fibre, and ion fan for the machine is controllable alone.

Description

Fiber preparation system of blowing workshop

Technical Field

The invention relates to a fiber production system in a blowing plant of a spinning mill, having an ion fan or an ion air curtain for repelling static electricity on the fibers.

Background

In the blowing plant of a spinning mill, the fibers to be treated are usually passed through a plurality of treatment stages. In the first stage, the fibers are separated from the fiber pack into the form of a fiber bundle, and an opener is mainly used for this purpose. These fiber bundles are removed from the opener by a pneumatic conveying device, which is mainly composed of a pipeline and a fan, to create the required conveying air flow, and sent to the downstream picker. The cleaned fibre bundle is sent again pneumatically from the picker to the mixer, from which it is then conveyed by an additional conveyor to a carding machine, which separates the fibre bundle into individual fibres and then forms it into fibre slivers which are stored in a can. The arrangement of the individual machines of the fiber preparation system in the scutching shop can be embodied in various ways, depending inter alia on the raw material to be treated and the target product to be produced, etc. For example, a rough and fine picker may be used, or a temporary storage may be used. Fiber processing machines common to scutchers, such as an opener, a scutcher, a temporary storage device, a mixer or a carding machine, are used in the scutcher for cleaning, mixing, separating the fibrous material into individual fibers, and parallelizing the fibers. In addition, some simple machines, such as metal separators, foreign object detection systems, and foreign fiber detection systems can be integrated into the fiber preparation system as desired.

However, in the fiber processing process, due to the characteristics of the fibers and the drying of the internal environment of the fiber processing machine, mutual friction can be generated between the fiber material and the machine parts, so that the fibers are charged with static electricity, the static electricity can make the fibers and impurities tightly adsorbed, the difficulty of opening and impurity removal is increased, the efficiency of opening and impurity removal is reduced, the mixing and carding effects of the fibers are also deteriorated, especially artificial fibers are more prone to generate static electricity, and the processing of the fiber material is influenced and even dangerous. The common countermeasure is to eliminate static electricity by grounding the chassis, but this method is not ideal in practical application.

Utility model CN210684028U discloses a blowing-carding ally oneself with static-removing device, it sets up the connector at hollow licker-in both ends, and humidifier and ion fan are connected and are blown in the ion wind through this connector toward the licker-in inboard to the realization is by the inboard static of outside clearing away the lap comprehensively of lap. However, the proposal is only suitable for special hollow licker-in and the structure is more complex.

Utility model CN211546750U discloses a mix feeder for cotton machine, the ionic wind machine setting of destaticizing on the box, the discharge gate of its air outlet correspondence box, the static that ionic wind contained in with fiber material is detached. Because the ion fan only carries out static elimination to the fibre at the cotton mixing machine exit, the fibre that gets into the cotton mixing machine can be influenced with the mixed effect under the circumstances of static.

Disclosure of Invention

It is therefore an object of the present invention to create a fiber preparation system for a blowing plant, which can remove static electricity from the fibers to be treated. The fiber preparation system is at least provided with one static-removing ion fan or ion air curtain, the static-removing ion fan or ion air curtain can be arranged on different machines of the fiber preparation system or on a transmission pipeline connected between the machines according to requirements, and the ion fan or ion air curtain can be independently controlled according to requirements.

A series of machines for treating fibers of fiber preparation systems generally comprise opener, scutcher, mixer, hopper and carding machines, which are connected by pneumatic conveying means, which are mainly constituted by a pipeline and a fan, to create the required conveying air flow. Advantageously, the ion blower or ion air curtain may be particularly preferred at the fiber inlet of the machine to remove static electricity from the fibers entering the machine prior to their entry into the machine, thereby further facilitating the machine's processing of the fibers.

Depending on the properties of the fibrous material to be treated, such as the fibrous material and the particular environment being less prone to static electricity, the ion blower or ion air curtain may be provided on only one machine of the fiber producing system. If the fiber material and the specific environment are easy to generate static electricity, the ion fans or ion air curtains can be arranged on a plurality of machines simultaneously.

Preferably, the ion fan or the ion air curtain is not arranged on the machine, or at least one ion fan or ion air curtain is arranged on a transmission pipeline between machines for processing the fibers, and an air outlet of the ion fan or the ion air curtain blows ion air to the fiber bundles in the transmission pipeline along the flowing direction of the fibers (or at other various different angles) to remove static electricity on the fiber bundles in the transmission pipeline. The ion fan or the ion air curtain is arranged on the transmission pipeline between the machines, the structure is relatively simple, static electricity can be removed in the fiber transmission process, and the influence on the machine for processing the fibers can be reduced to the minimum. It is contemplated that after the ion blower or ion wind curtain is placed on one or more machines, one or more ion blowers or ion wind curtains may be placed on the transport duct between the machines at the same time.

The ion blower may be any of a variety of different types of ion blowers known in the art, such as EPUTEC, which are suitable for use in different installation and application environments. Because conventional fans produce non-uniform airflow or turbulence, the positive and negative ions recombine before striking the electrostatically charged material, and the fans are bulky, need to withstand mechanical wear, and provide only limited airflow control. Thus, in many cases, an ion air curtain may be employed. The ion air curtain has the structure of a compressed air source connected to a nozzle, and when the compressed air is discharged through the nozzle, a uniform air flow is formed over the entire length, so that air in the surrounding space is immediately sucked in, and simultaneously an electric ionizing bar fills the air flow with positive and negative ions. The air flow transports these ions to the fiber surface and immediately neutralizes the static electricity.

The fiber preparation system of the blowing workshop provided with the ion fan or the ion air curtain can effectively remove static electricity on fibers, thereby improving the efficiency of fiber impurity removal, improving the effects of fiber mixing, carding and the like, and being beneficial to improving the safety of the blowing workshop.

Drawings

Further advantages of the invention are described on the basis of the embodiments illustrated and explained below.

In the drawings:

fig. 1 shows a schematic view of a fiber preparation system in a blowing plant according to the invention;

fig. 2 shows a top view of an opener according to the invention;

fig. 3 shows a schematic structural view of a picker according to the present invention;

fig. 4 shows a schematic view of a cotton blender according to the invention;

FIG. 5 shows a schematic view of a hopper and carding machine according to the invention;

fig. 6 shows a schematic structural diagram of an ion air curtain according to the present invention.

Detailed Description

Fig. 1 shows a schematic view of one embodiment of a fiber preparation system in a blowing plant, and the included machines. Fig. 1 shows a simplified arrangement of a fibre preparation system for a blowing plant, which in many not shown embodiments may also contain various additional machines in additional arrangements, such as temporary storage devices, metal separators, foreign-matter detection systems, foreign-fibre detection systems, and fine cleaning systems.

The fibre preparation system in the scutching plant starts from a cotton opener 1, which fig. 1 shows a reciprocating type cotton opener 1, in an embodiment not shown, which may also be a disc type cotton opener. The opener 1 takes fibre tows from the ready fibre bales 10 and sends them to the transfer duct 6. The fibre bundle is then sent to the picker 2 via the transfer duct 6. After passing through the picker 2, the fiber bundle is transported to the mixer 3 through another transport pipe 6 and a fan 7. The fan 7 ensures the necessary conveying air flow for conveying the fibre bundles from the opener 1 to the mixer 3 via the picker 2. The fibre bundle output from the cotton mixer 3 is conveyed via a subsequent conveying pipe 6 and a further fan 7 to a hopper 5 of the carding machine, and finally enters the carding machine 4 to be carded into fibre slivers which are stored in a can for subsequent further processing.

Wherein, the utility model discloses an ion fan 8 can be that EPUTEC company produces for example, and different installation and application environment are suitable for to various different models. The ion blower 8 has the disadvantage of producing an uneven, turbulent air flow that causes the positive and negative ions to recombine before they strike the electrostatically charged material. They are also bulky, need to withstand mechanical wear, and provide only limited airflow control. Therefore, in many cases, the ion wind curtain 9 may be employed. The ion air curtain 9 may be of the construction shown in figure 6, with a source 92 of compressed air connected to the nozzle 91, the compressed air flowing through the inlet into the air chamber of the nozzle 91, the air stream being directed to a precisely slotted orifice which, when the air stream is exhausted, creates a uniform layer 93 of air over its entire length, thereby immediately drawing in air 95 from the surrounding space. An electrically powered ionizing bar 94 floods the air stream with positive and negative ions. The air flow transports these ions to the fiber surface and immediately neutralizes the static electricity. Compared to the ion blower 8, the ion curtain uses only a small amount of compressed air to create a balanced laminar flow of air, taking ions off to the surface of the charged material even if it is far apart. Flow and force are easily controlled and there is no wear of moving parts.

Fig. 2 shows a top view of an opener 1 for removing fibre bundles from fibre bales 10, which opener 1 essentially consists of a stripping tower 11 and stripping arms 12. A stripper arm 12 is fastened to one side of the stripper tower 11 and projects freely through the fibre package 10. The stripper tower 11 is equipped with a chassis by means of which the stripper tower 11 is moved along the fibre bales 10 on rails 13. Due to this movement 15, the stripper arm 12 mounted on the stripper tower 11 is guided through the surface of the fibre package 10, stripping the fibre bundle from the fibre package 10, which is brought to the conveyor channel 16 by the stripper arm 12 and the stripper tower 11. The transfer channel 16 is under a certain underpressure which is used for pneumatic transfer of the fibre bundle into the transfer channel 16. The stripping arm 12 is fastened to the stripping tower 11 and is height adjustable so that the fibre package 10 can be stripped continuously. The movement in height of the stripping arm 12 serves to ensure that the fibre tows are evenly removed from the surface of the fibre bale 10. The stripping tower 11 can be traversed back and forth over all the fibre bales 10 along the travel movement 15. When the fibre bales 10 are arranged on both sides of the conveyor channel 16 for removal, the stripper tower 11 can rotate the stripper arm 12 to the other side of the conveyor channel 16 for stripping the fibre bundles of the fibre bales on the other side, due to the rotary movement 17. An ion fan 8 or an ion air curtain 9 is arranged on one side surface of the stripping arm 12, an air outlet of the ion fan 8 or the ion air curtain 9 corresponds to the fiber bag 10, and static electricity on the fiber bag 10 is eliminated by blown ion air. Advantageously, an ion blower 8 or an ion air curtain 9 can also be arranged on each side of the stripping arm 12 (or an ion blower 8 on one side and an ion air curtain 9 on the other side), as shown in fig. 2, so that during the reciprocating movement of the stripping arm 12, the ion blower 8 or the ion air curtain 9 on the side facing in the forward direction is operated to blow an ion wind against the surface of the fiber package 10, which removes the static electricity before the fibers are stripped from the fiber package, while the ion blower 8 or the ion air curtain 9 on the side facing away from the forward direction can be switched off. Advantageously, the two-sided ion blower 8 or ion air curtain 9 can also be operated simultaneously during stripping of the fibre bundle in order to better eliminate static electricity, in particular during processing of the staple fibres, since the latter are more prone to static electricity.

Fig. 3 shows a schematic view of an embodiment of the picker 2 of the fiber preparation system. The scutcher 2 comprises a fiber inlet I24, a cleaning roller 21 and a fiber outlet I25. The fibre bundle is conveyed in the direction of arrow 22 via the transfer duct 6 to the fibre inlet i 24 of the picker 2. The clearing roller 21 of the picker 2 rotates in direction 26 and is fitted with beater elements on its circumference. The fibre bundle fed to the inlet is first conveyed around the cleaning roller 21 by means of the feed air and then by means of the rotating cleaning roller 21 and/or the beater element. In doing so, the fiber cotton bundle is conveyed over a grid 27, which grid 27 removes contaminants from the fiber cotton bundle. The fiber bundle entering the picker 2 through the inlet is passed around the cleaning roller 21 a number of times by means of a baffle mounted correspondingly in a spiral pattern above the cleaning roller 21 and is then conveyed to the fiber outlet i 25. The cleaned fibre bundle finally leaves the picker 2, which is conveyed via a fibre outlet i 25 along arrow 23 into the subsequent transfer duct 6. When the fiber bundle is conveyed in the upstream machine and the conveying pipeline 6, the fiber bundle is electrostatically charged due to friction and the like, and the static electricity adsorbs the fiber and impurities together, so that the impurity removal effect of the cotton picker 2 is influenced. An ion fan 8 or an ion air curtain 9 is detachably arranged at a fiber inlet I24 of the scutcher 2, an air outlet of the ion fan 8 or the ion air curtain 9 corresponds to the flow direction of the fiber bundles, blown ion air and the fiber bundles are fully mixed and contacted when entering the scutcher 2, and static electricity carried by the fiber bundles is removed, so that impurities are better removed in the scutcher 2, and the impurity removal efficiency is improved. As an option, the ion blower 8 or ion air curtain 9 may be installed at other positions of the picker 2 to blow ion air to the fiber bundle during or after the treatment to remove static electricity.

Fig. 4 shows a schematic diagram of an embodiment of a cotton mixer 3 of the fiber preparation system, the cotton mixer 3 being a multi-bin cotton mixer comprising a fiber inlet ii 31, a fiber outlet ii 32, and a plurality of cotton bins 33. The fiber bundles conveyed from the upstream transfer duct 6 enter the fiber inlet ii 31 into the cotton blender 33 in the direction of arrow 34 and are further distributed with the air flow into the respective cotton bins 33, fall from the cotton bins 33, are thoroughly mixed and conveyed to the fiber outlet ii 32, and finally are conveyed to the downstream transfer duct 6 in the direction of arrow 35. An ion fan 8 or an ion air curtain 9 is detachably arranged at a fiber inlet II 31 of the cotton mixing machine 3, an air outlet of the ion fan 8 or the ion air curtain 9 corresponds to the flow direction of the fiber bundles, blown ion air and the fiber bundles are fully mixed and contacted when entering the cotton mixing machine 3, static electricity carried by the fiber bundles is removed, negative effects such as mutual attraction and the like caused by the static electricity are eliminated, and therefore the fiber bundles are better mixed in the cotton mixing machine 3, and the mixing effect is improved. Alternatively, the ion blower 8 or the ion curtain 9 may be disposed at another position, for example, at the bottom or the outlet of the cotton mixer 3, and the ion wind may be blown to the fiber bundle during the mixing process or the mixed fiber bundle to remove static electricity.

Fig. 5 shows a schematic view of an embodiment of a cotton box 5 of a fiber preparation system connected to a carding machine 4, a fiber inlet iii 51 of the cotton box 5 is connected to a transport pipe 6, and a fiber bundle conveyed by the transport pipe 6 in a direction 52 enters the cotton box 5 via the fiber inlet iii 51 and is temporarily stored in the cotton box 5, and impurities and the like are removed, and then the fiber bundle enters the carding machine 4 for carding, the impurities are removed, the fibers are made parallel, and finally a sliver output is formed and stored in a sliver can (not shown). An ion fan 8 or an ion air curtain 9 is detachably arranged at a fiber inlet III 51 of the cotton box 5, an air outlet of the ion fan 8 or the ion air curtain 9 corresponds to the flow direction of the fiber bundles, and blown ion air and the fiber bundles are in mixed contact when entering the cotton box 5, so that static electricity carried by the fiber bundles is removed, the influence of the static electricity is eliminated, impurities are better removed and combed in the carding machine, and the quality of cotton slivers is improved. Alternatively, the ion blower 8 or ion curtain 9 may be disposed at other positions, such as the bottom or outlet of the hopper 5, or even the inlet of the cotton picker 4, to blow the ion wind to the fiber bundle during the flow process to remove static electricity.

Advantageously, the ion blower 8 or the ion air curtain 9 can optionally be mounted on only one of the fibre processing machines of the fibre preparation system of the scutching plant, for example on the opener 1 only, or on the cleaner 2 or the mixer 3 or the hopper 4 only. It is also possible to install the ion blower 8 or the ion air curtain 9 on more than one machine at the same time, or even install the ion blower 8 or the ion air curtain 9 on all machines. Specifically, it can be selected according to the condition of the fiber to be treated and the environment, and if the fiber to be treated is artificial fiber, because the artificial fiber is more likely to generate static electricity than natural fiber, it can be selected to install the ion blower 8 or the ion air curtain 9 on different machines, respectively, so as to remove the static electricity better. If the environment is dry, static electricity is easy to generate, and in this case, the ion fan 8 or the ion air curtain 9 can be respectively arranged on different machines according to actual conditions. On the contrary, the number of the ion fans 8 or the ion air curtains 9 can be reduced accordingly. Advantageously, the ion blower 8 or the ion air curtain 9 is detachably mounted, which on the one hand facilitates subsequent maintenance and on the other hand the ion blower 8 or the ion air curtain 9 can be removed if not required and the operation of the fiber preparation system is not affected.

Advantageously, in an alternative solution not shown, the ion blower 8 or the ion air curtain 9 can be installed not only at the inlet of the respective machine, but also at different locations of the machine, depending on the actual structure of the respective machine, for example at the outlet of the machine, inside the machine, etc. During the fiber flowing inside the machine, the ion wind of the ion fan or ion wind curtain blows to the fiber bundle to eliminate the static electricity on the fiber bundle.

As shown in fig. 1, not only the ion blower 8 or the ion air curtain 9 may be installed on the fiber processing machine to remove the static electricity from the fiber bundle, but also the ion blower 8 or the ion air curtain 9 may be installed on the transport duct 6 between the fiber processing machines, and the ion air is blown out from the outlet of the ion blower 8 or the ion air curtain 9 in the direction corresponding to the flow direction of the fiber bundle in the transport duct 6 (or at other different angles) to remove the static electricity from the fiber bundle in the transport duct 6. It is of course possible, as an embodiment, to install the ion blower 8 or the ion air curtain 9 only on the transport duct 6 between the fibre treatment machines, without installing any ion blower or ion air curtain on the fibre treatment machines, or to install the ion blower or ion air curtain only on a part of the fibre treatment machines, which can be selected according to the fibres to be treated and the specific circumstances.

Meanwhile, the installed ion fan 8 or the ion air curtain 9 is independently controllable, and the operation and the stop of the ion fan can be independently controlled. The running time and the law of the ion fan or the ion air curtain can also be set. For example, for a single ion blower 8 or ion curtain 9, it can be set to operate at intervals, for example, 5 minutes after 5 minutes of operation and then 5 minutes after stopping. Or for example, for the opener 1, it can be arranged that only the ion blower 8 or the ion wind curtain 9 in the advancing direction of the stripping arm 12 is operated, and it is also possible to operate the ion blower or the ion wind curtain after a round trip during the reciprocating movement of the stripping tower 11, i.e. the ion blower 8 or the ion wind curtain 9 is stopped during one of the round trips during which the stripping tower 11 moves. For a plurality of ion fans or ion air curtains of the whole fiber preparation system, a plurality of ion fans or ion air curtains on different machines at the upstream and downstream can also be set to run in turn. Still other control schemes are not described herein. Such a controlled arrangement is beneficial in improving the efficiency of static electricity removal during the actual treatment of the fibers.

Claims (11)

1. A fibre preparation system in a blowing plant with a series of machines (1-5) for treating fibres and a transport duct (6) for pneumatic fibre tow transport arranged between the machines (1-5), respectively, characterized in that at least one ion blower (8) or ion air curtain (9) is detachably arranged on the fibre preparation system, that the ion blower (8) or ion air curtain (9) blows an ion wind against the fibres for eliminating static electricity on the fibres, and that the ion blower (8) or ion air curtain (9) is individually controllable relative to the machines (1-5).

2. Fibre production system of a blowing plant according to claim 1, characterised in that the ion fan (8) or the ion air curtain (9) can be switched on or off independently of the machine (1-5) and can be operated according to set time intervals.

3. A fibre preparation system for a blowing plant according to claim 1, characterised in that the ion air curtain (9) is provided with a source of compressed air.

4. A fibre preparation system in a blowing plant according to claim 3, characterised in that the compressed air source of the ion air curtain (9) forms a uniform air stream (93) over a length of the air stream ejected through a nozzle (91) so that air (95) from the surrounding space is also immediately sucked in, and that an electrically driven ioniser bar (94) fills the air stream (93) with positive and negative ions which are transported by the air stream to the fibre surface for neutralising the static electricity.

5. A fibre preparation system for a blowing plant according to any one of claims 1-4, characterised in that the ion blower (8) or ion air curtain (9) is arranged on the machine (1-5) for treating fibres.

6. The fiber preparation system of an blowing plant according to claim 5, characterized in that the machine for processing fibers comprises a reciprocating opener (1), the reciprocating opener (1) has a stripping tower (11) which can move reciprocally along a track and a stripping arm (12) which is arranged on the stripping tower (11) and can move up and down along the stripping tower (11), the stripping arm (12) continuously strips fiber bundles from the fiber pack (10), the stripped fiber bundles enter the next machine for processing fibers through a conveying channel (16), at least one ion fan (8) or ion air curtain (9) is detachably arranged on the stripping arm (12), an air outlet of the ion fan corresponds to the fiber pack (10), and ion air is blown to the fiber pack (10) for eliminating static electricity on the fiber pack (10).

7. A fibre preparation system for an scutching workshop according to claim 6, characterized in that on both sides of the stripping arm (12) of the opener (1) there is an ion fan (8) or an ion air curtain (9), respectively, which ion fan (8) or ion air curtain (9) is individually controllable in relation to the opener (1), respectively.

8. The fiber preparation system of the blowing workshop according to the claim 5, characterized in that the machine for processing the fiber comprises a blowing machine (2) which comprises a fiber inlet I (24), a cleaning roller (21) and a fiber outlet I (25), an ion fan (8) or an ion air curtain (9) is detachably arranged at the fiber inlet I (24) of the blowing machine (2), and the air outlet of the ion fan (8) or the ion air curtain (9) blows ion air corresponding to the fiber inlet I (24) of the blowing machine (2) along the flowing direction of the fiber bundle to remove the static electricity on the fiber bundle entering the blowing machine (2).

9. The fiber preparation system of the blowing workshop according to claim 5, characterized in that the machine for processing the fibers comprises a cotton mixer (3), the cotton mixer (3) comprises a fiber inlet II (31), at least two cotton bins (33) and a fiber outlet II (32), an ion fan or ion air curtain (9) is detachably arranged at the fiber inlet II (31) of the cotton mixer (3), and an air outlet of the ion fan (8) or ion air curtain (9) blows ion air corresponding to the fiber inlet II (31) of the cotton mixer (3) along the fiber flowing direction to remove static electricity on the fiber bundles entering the cotton mixer (3).

10. The fiber preparation system of the blowing plant according to claim 5, characterised in that the machine for treating fibers comprises a hopper (5) connected to the carding machine (4), an ion fan (8) or ion air curtain (9) is detachably arranged at the fiber inlet III (51) of the hopper (5), and the air outlet of the ion fan (8) or ion air curtain (9) blows ion air in the direction of the fiber bundle flow corresponding to the fiber inlet III (51) of the hopper (5) to remove static electricity from the fiber bundle entering the hopper (5).

11. The fiber preparation system of a blowing plant according to any one of claims 1 to 4, characterised in that at least one ion blower (8) or ion air curtain (9) is arranged on the transport pipe (6) between the machines for treating fibers, the outlet opening of the ion blower (8) or ion air curtain (9) blowing an ion air against the fiber bundles in the transport pipe (6) in the direction of the fiber flow, removing the static electricity from the fiber bundles in the transport pipe (6).

Images