CN118343549A

CN118343549A - Filament air flow conveying device matched with winding device

Info

Publication number: CN118343549A
Application number: CN202310071477.8A
Authority: CN
Inventors: J·温科豪斯; S·康拉德; 代华永; 张巍
Original assignee: Oerlikon Textile GmbH and Co KG
Current assignee: Oerlikon Textile GmbH and Co KG
Filing date: 2023-01-13
Publication date: 2024-07-16

Abstract

The invention discloses a filament airflow conveying device matched with a winding device, which comprises a plurality of guide pipes and a negative pressure generator, wherein the guide pipes are arranged along a filament path, the negative pressure generator is connected with at least one guide pipe of the guide pipes, the guide pipes of the filament airflow conveying device are also provided with movable guide pipes, and the movable guide pipes simultaneously execute rotation and vertical movement under the action of an actuator; the guide tube has a transverse guide tube fixedly arranged between the movable guide tube and the suction tube of the winding device; the lateral guide tube is obliquely oriented towards the suction tube of the winding device and has one end arranged close to and aligned with the end of the suction tube of the winding device. The vertical and rotary movements of the movable guide tube can enable the movable guide tube to be switched between a head-producing state and a winding state.

Description

Filament air flow conveying device matched with winding device

Technical Field

The invention relates to a filament airflow conveying device matched with a winding device and a false twist texturing machine using the filament airflow conveying device.

Background

Textile machines, such as false twist texturing machines, spin winding machines, etc., which process filaments are provided with processing units required for the processing of the filaments on their travel path. The treatment unit is generally used for cooling, heating, stretching, winding and the like of the filaments. In such textile machines, the winding device is the last of the whole process. Taking a false twist texturing machine as an example, the cooling rail, the hot box, the false twist device, the conveying device and the winding device which are fully described in the prior art are respectively positioned on a preset yarn path. After the machine is started, the filaments need to be suspended on each processing unit in turn by an operator with a hand-held filament suction device, up to the winding device, an operation called "threading operation".

From the viewpoints of labor intensity and complexity of manual operation, the present inventors have conducted research in the direction of replacing manual operation. One of the inventive efforts is disclosed in prior art CN114007968a, which discloses several guide tubes arranged along the filament travel path and pressure rollers arranged between two guide tubes, one of which is at a short distance and opposite to the suction tube of the winding device. By means of the negative pressure generator, the prior art can realize filament conveying in the process of head generation.

In view of the different configurations of the winding device with which the filament air transport device is used, it is necessary to adapt the structure of the filament air transport device, especially when the winding device is configured in a so-called "front nozzle" configuration.

Disclosure of Invention

In order to solve the technical problems, the invention provides the following technical scheme to provide the filament airflow conveying device which can be more suitable for the front suction nozzle type winding device.

A filament air flow conveying device matched with a winding device, comprising a plurality of guide pipes and a negative pressure generator, wherein the guide pipes are arranged along a filament path, the negative pressure generator is connected with at least one guide pipe of the guide pipes, and the guide pipes of the filament air flow conveying device are also provided with movable guide pipes which simultaneously execute rotation and vertical movement under the action of an actuator; the guide tube has a transverse guide tube fixedly arranged between the movable guide tube and the suction tube of the winding device; the lateral guide tube is obliquely oriented towards the suction tube of the winding device and has one end arranged close to and aligned with the end of the suction tube of the winding device.

The lateral guide tube establishes an airflow path in communication with the suction tube. The vertical movement of the movable guide tube can enable the movable guide tube to be switched between a head-producing position for ascending and deflecting to be in butt joint with the transverse guide tube and a winding position for descending and correcting.

After passing through the transverse guide tube, the filaments need to exit from the transverse guide tube, so that the transverse guide tube has a slit extending along its entire length.

The movable guide pipe moves between a first position and a second position, the first position is higher than the second position, and when the movable guide pipe is positioned at the first position, the movable guide pipe faces the obliquely arranged transverse guide pipe; when the movable guide pipe is positioned at the second position, the movable guide pipe is opposite to the winding device in a mode of being perpendicular to the axis of the friction roller of the winding device.

Preferably, the actuator is configured as a cylinder structure.

The movable guide tube is connected to a guide element which is connected to a vertically movable rod part of the actuator.

The guide element is cylindrical and is movably arranged in a circular sleeve, the guide element is provided with a guide groove, and the circular sleeve is provided with a pin which can move in the guide groove.

The guide slots are configured to run along the length of the guide member and have a section of vertical slot and a section of angled slot that is angled with respect to the vertical slot.

The winding device further comprises a catching element arranged on the suction pipe, wherein a wire suction cover which is perpendicular to the suction pipe is arranged at the pipe orifice of the suction pipe, and the wire suction cover covers a space between the pipe orifice of the suction pipe and the catching element.

The movable guide tube is internally provided with a guide roller which is arranged at the bending part and can freely rotate.

The filament air flow transport device of the foregoing construction is preferably adapted to a false twist texturing machine having a plurality of supply devices for supplying filaments, a plurality of heating devices for heating the filaments, a plurality of cooling devices for cooling the filaments, a plurality of false twist devices for false twisting the filaments, a plurality of transport devices for transporting the filaments, and a plurality of winding devices for winding the filaments into a tube, and the texturing machine further has a filament air flow transport device located on an upstream side of the winding devices.

Drawings

FIG. 1 is a schematic view of the structure of a filament air transport device of the present invention in cooperation with a winding device;

FIG. 2.1 is a schematic view of the partial structure of the present invention during the process of generating a head;

fig. 2.2 is a top view of the embodiment of fig. 2.1;

FIG. 3.1 is a schematic view of the partial structure of the present invention after the end of the head is finished;

FIG. 3.2 is a partial top view of the embodiment of FIG. 2.2;

FIG. 4.1 is a partial schematic view of the movable guide tube of the present invention after the end of the head is finished;

FIG. 4.2 is a partial schematic view of the movable guide tube of the present invention in a raw-head state;

FIG. 5 is a schematic view of the structure of the guide element of the present invention;

fig. 6 is a schematic structural view of the auxiliary device.

Detailed Description

Fig. 1 is a schematic view of the structure of a filament air transport device of the present invention in cooperation with a winding device.

The device shown in fig. 1 essentially comprises a winding device 2 and a filament air transport device 1. In addition, in order to facilitate an understanding of the technical solution, fig. 1 also includes a conveyor device 11 located above the filament air conveyor device 1. The conveyor 11 is formed with a pair of rollers 12 that can be clamped to each other by a clamping mechanism. The clamping mechanism may release the pair of rollers 12 away from each other when clamping is not required. The advancing filaments pass through the filament air transport device 1 after passing between the pair of rollers 12, and enter the winding device 2. The so-called "artificial head operation" is also a manual operation along this route.

The structure of the winding device 2, which cooperates with the filament air transport device 1, will be described first. The winding device 2 has a cradle 3, a friction roller 6 and an auxiliary device 7. The cradle 3 and the friction roller 6 are of a general construction and have been described in detail in the prior art, and therefore only a brief description is provided here. The winding device may be classified into a "front suction nozzle type" and a "rear suction nozzle type" according to the mounting position of the auxiliary device 7 with respect to the friction roller 6. In fig. 1 is shown a "front suction nozzle", wherein the auxiliary device 7 is located in front of the friction roller 6.

The cradle 3 is designed to be movable in rotation and has opposite ends, each of which is fitted with a clamping disk 4. A pair of said clamping discs 4 are relatively movable under the influence of external force to clamp or release the coiled tube 5. The friction roller 6 disposed in parallel with the cradle 3 is driven to rotate by a driving source, not shown, and the cradle 4 sandwiching the winding tube 5 is rotatably moved until the winding tube 5 is pressed against the friction roller 6. The auxiliary device 7 is arranged on the front side of the friction roller 6, i.e. the auxiliary device 7 contacts the filaments earlier than the friction roller 6.

The auxiliary device 7 has a suction tube 8. The suction pipe 8 is constructed in an L-shape, the vertical section of which is taken as the rotation axis of the auxiliary device 7. The vertical section is connected to a negative pressure generating device to create a negative pressure air flow inside the suction tube 8. The drive motor 9 of the auxiliary device 7 transmits power to the suction pipe 8 through a transmission gear pair 10. The lateral section of the suction duct 8 is provided with shredding and catching elements extending along both sides of the lateral section.

The structure and function of the shredding element and the catching element are also well described in the prior art and are therefore only briefly described here. During the process of threading, the suction tube 8 is stopped at a starting position where it can receive the ends of the filaments, as shown in fig. 1. After the filament ends are sucked and held by the mouth of the suction tube 8, the suction tube 8 is driven to rotate clockwise. During rotation, the catching element and the suction tube 8 hold together the filament segments between them until the filament segments held by both are rotated to the vicinity of the right hand holding pan 4. The hooking elements on the holding pan 4 hook the length of filament so that the filament can be wound on the winding tube. The thread cutting elements provided on the other side of the transverse section of the suction tube 8 will function in a bobbin automatic replacement procedure, which has already been described in the prior art and will not be described in detail.

After only the artificial placement of the filaments at the inlet of the filament air transport device, the filament air transport device can continuously and automatically transport the filaments from the transport device 11 to the winding device 2 and can contact the filaments with the oiling device to continuously oil the filaments after the transport of the filaments is completed.

For this purpose, the conveying filament air flow conveying device is constructed with a plurality of guide tubes. In the embodiment shown in fig. 1, the guide pipes are divided into a first guide pipe 14, a movable guide pipe 15 and a lateral guide pipe 16. The first guide pipe 14 is located below the conveyor 11 and is installed vertically. The upper end 13 of the first guide tube 14 is provided with a not shown cutting member which is used to cut the filaments after they have been sucked into the first guide tube 14 to form filament ends. The movable guide tube 15 is bent. The transverse guide tube 16 is fixedly arranged between the movable guide tube 15 and the suction tube 8. The transverse guide tube 16 is at substantially the same level as the transverse section of the suction tube 8, and one end of the transverse guide tube 16 is adjacent to and aligned with the suction tube 8 resting in the starting position, by which arrangement filaments can be drawn into the suction tube 8 precisely after being flushed out of the transverse guide tube 16 by a high-velocity air flow.

The oiling device 17 applies grease to the filaments before winding to lubricate the filaments, which is an important process step. The oiling device 17 generally includes an oil sump, an upper tanker disposed in the oil sump, and grease partially submerging the upper tanker. The upper oil tanker is provided with an upper oil groove arranged along the circumferential direction of the upper oil tanker. The filaments travel against the upper oil sump in a manner forming a small wrap angle to be oiled. The filaments during normal winding are subjected to a uniform oiling before entering the winding device 2. The installation position of the oiling device 17 is lower than the installation position of the transverse guide pipe 16.

A negative pressure generator is integrated in the inner space of the movable guide pipe 15 and generates a high-speed air flow in the movable guide pipe 15. The principle of the negative pressure generator is described in the prior art, and thus will not be described in detail. In order to achieve an automatic threading operation, when the orifices of the movable guide tube 15, the transversal guide tube 16 and the suction tube 8 are aligned with each other, the filaments will be sucked through the first guide tube 14 and the movable guide tube 15 at the inlet of the first guide tube 14, and then enter the transversal guide tube 16 fixedly arranged with the jet air flow and finally be guided into the suction tube 8. The suction tube 8 is rotated clockwise as described above after receiving and holding the filaments. During rotation, the catching element and the mouth of the suction tube 8 hold together a length of filament, which is transferred to the hooking element of the holding pan.

The filaments are not in contact with the oiling device 17 before they are handed over to the hooking means of the clamping disk. According to the yarn treatment process requirements, the filaments need to be in contact with the oiling device 17 to be oiled before entering the winding device while they are wound up on the winding tube 5.

Fig. 2.1 is a schematic illustration of a partial structure of the invention during the heading process, wherein the winding device is not shown and only a part of the guide tube is shown. Fig. 2.2 is a top view of the embodiment of fig. 2.1. The state shown in fig. 2.1 is a state when the head is being grown. In this state, the movable guide pipe 15 is at the same height as the lateral guide pipe 16, and is butted with the lateral guide pipe 16 in close proximity to each other to form an air flow traveling passage. The filaments are guided through this travel channel by an air flow until being directed towards the suction tube 8. Referring particularly to fig. 2.2, it can be seen that the transverse guide tube 16 is disposed obliquely at an acute angle to the oiling device 17, so that the transverse guide tube 16 is aligned with the suction tube 8 of the winding device (as shown in fig. 1). The inclination angle of the movable guide pipe 15 in this state also coincides with the inclination angle of the lateral guide pipe 16. The lateral guide tube 16 has a slit 23 extending along its entire length.

Fig. 3.1 is a schematic view of the partial structure of the present invention after the head is finished. Fig. 3.2 is a partial top view of the present invention after the end of the head is finished. The difference between fig. 3.1, 3.2 with respect to fig. 2.1, 2.2 is that the height of the movable guide tube 15 is reduced and rotated counter-clockwise by a certain angle. The movable guide tube 15 after rotation is shown in fig. 3.2, and the movable guide tube 15 is perpendicular to the oiling device 17. The movable guide tube 15 in the state of fig. 3.1, 3.2 allows the filaments to enter the winding process continuously at a vertical angle. In addition, the movable guide tube 15, which is lowered in height, can ensure that the filaments are at a height that can be in contact with the oiling device, and uniform oiling of the filaments can be achieved. The filaments in the state of fig. 2.1, 2.2 are pulled out of the slit 23 of the transverse guide tube 16 in the transverse guide tube 16 during the transition to the state of fig. 3.1, 3.2, and thus lowered to a level of contact with the oiling device.

For a further description of the rotational and vertical movement of the movable guide tube 15, reference is made to fig. 4.1, 4.2 and fig. 5. Fig. 4.1 is a partial schematic view of the movable guide tube of the present invention after the head is completed. Fig. 4.2 is a partial schematic view of the movable guide tube of the present invention in a headed state. Fig. 5 is a schematic structural view of the guide member of the present invention. As shown in fig. 4.2, the moveable guide tube 15 has a sleeve portion 18. The sleeve portion 18 is slidably fitted over the outer surface of the first guide tube 14 with respect to the first guide tube 14. The lower end of the movable guide tube 15 is connected with a guide element 19. The guide element 19 is cylindrically formed and is movably accommodated in a circular sleeve 22. The circular sleeve 22, the guide element 19 and the first guide tube 14 are coaxial, wherein the first guide tube 14 and the circular sleeve 22 are mounted in a fixed manner.

The guide element 19 is provided with a guide groove 20, and for cooperation with the guide groove 20, the circular sleeve 22 is provided with a pin 21 which can move relatively in the guide groove, and the pin 21 is transversely inserted into the guide groove 20.

The guide slot 20 of the guide element 19 has two parts, a vertical slot section 20.1 and a chute section 20.2 at an angle a to the vertical slot section. In this embodiment, the chute section 20.2 is inclined to the right. The lower end of the guide element 19 is connected to an actuator, not shown. The actuator is constructed in a cylinder structure, which is not described since it is a well-known art in the art. The guide element 19 is shown to be raised and lowered under the action of the actuator. At the beginning of the head, the actuator is switched on, after which the vertically movable rod part of the actuator can lift the guide element 19 upwards, the pin 21 first being moved relatively along the vertical slot section 20.1, during which the guide element 19 is lifted only and the movable guide tube 15 connected to the guide element 19 is lifted accordingly. After the relative movement of the pin 21 into the chute section 20.2, the freely movable guide element 19 is deflected relatively, and the movable guide tube 15 is deflected therewith. The change from the position of the moveable guide tube 15 shown in fig. 3.2 to the position of the moveable guide tube 15 shown in fig. 2.2 is referred to as a deflection process. The deflected movable guide tube 15 is aligned with and abuts against one end of the transverse guide tube 16 as shown in fig. 2.2. The negative pressure generator integrated in the inner cavity of the movable guide tube 15 is turned on, and the air flow passage extending from the first guide tube 14 to the movable guide tube 15 until the lateral guide tube 16 is established, through which the filament ends are guided by the air flow, and finally sprayed to the suction tube 8 of the winding device 2. After the end of the head, the vertically movable rod part of the actuator drives the guiding part 19 to descend, and in the descending process, the movable guiding pipe 15 descends and deflects, and the change process from the position of the movable guiding pipe 15 in fig. 2.2 to the position of the movable guiding pipe 15 in fig. 3.2 is the deflection process. The deflected movable guide tube 15 is opposite to the winding device.

As shown in fig. 4.1 and 4.2, the movable guide tube 15 is shown with a bend, at which a freely movable guide roller 24 is arranged in order to reduce wear of the filaments at the bend.

Fig. 6 is a schematic structural view of the auxiliary device. The mouth of the suction pipe 8 is provided with a suction wire cover 21 which is perpendicular to the suction pipe 8 and covers the space between the mouth of the suction pipe 8 and the catching element on the suction pipe. The suction cap 21 may enhance the success rate of filaments being received by the suction tube 8 after being ejected from the lateral guide tube 16.

The filament air transport device 1 can be used in particular on false twist texturing machines. The basic structure of a false twist texturing machine is known, and includes a plurality of supply devices for supplying filaments, a plurality of heating devices for heating the filaments, a plurality of cooling devices for cooling the filaments, a plurality of false twist devices for false twisting the filaments, a plurality of conveying devices for conveying the filaments, and a plurality of winding devices for winding the filaments into a tube. Preferably, the filament air flow conveyor 1 is arranged between the conveyor and the winding device.

Claims

1. A filament airflow conveying device matched with a winding device comprises a plurality of guide pipes and a negative pressure generator, wherein the guide pipes are arranged along a filament path, the negative pressure generator is connected with at least one guide pipe of the guide pipes,

It is characterized in that the method comprises the steps of,

The guide tube of the filament air flow conveying device is also provided with a movable guide tube which simultaneously performs rotation and vertical movement under the action of an actuator;

The guide tube has a transverse guide tube fixedly arranged between the movable guide tube and the suction tube of the winding device;

The lateral guide tube is obliquely oriented towards the suction tube of the winding device and has one end arranged close to and aligned with the end of the suction tube of the winding device.

2. The filament air flow transport device of claim 1,

It is characterized in that the method comprises the steps of,

The lateral guide tube has a slit extending along its entire length.

3. The filament air flow transport device according to claim 2,

It is characterized in that the method comprises the steps of,

The movable guide tube moves between a first position and a second position,

The first position is higher than the second position, wherein when the movable guide pipe is positioned at the first position, the movable guide pipe faces the obliquely arranged transverse guide pipe; when the movable guide pipe is positioned at the second position, the movable guide pipe is opposite to the winding device in a mode of being perpendicular to the axis of the friction roller of the winding device.

4. The filament air flow transport device according to claim 2,

It is characterized in that the method comprises the steps of,

The actuator is configured as a cylinder structure.

5. The filament air transport device of claim 4,

It is characterized in that the method comprises the steps of,

6. The filament air transport device of claim 5,

It is characterized in that the method comprises the steps of,

7. The filament air transport device of claim 6,

It is characterized in that the method comprises the steps of,

8. The filament air transport device of claim 7,

It is characterized in that the method comprises the steps of,

The winding device further has a catch element mounted on the suction tube,

A wire suction cover which is arranged perpendicular to the suction pipe is arranged at the pipe orifice of the suction pipe,

The suction wire cover covers a space between the suction tube opening and the capturing element.

9. A filament air transport device according to claim 4 to 8,

It is characterized in that the method comprises the steps of,

10. A false twist texturing machine having a plurality of supply devices for supplying filaments, a plurality of heating devices for heating the filaments, a plurality of cooling devices for cooling the filaments, a plurality of false twist devices for false twisting the filaments, a plurality of conveying devices for conveying the filaments, and a plurality of winding devices for winding the filaments into a tube,

The texturing machine further has a filament air flow transport device located on the upstream side of the winding device, the filament air flow transport device being configured as claimed in any one of claims 1 to 8.