CN1696367B - Method for connecting auto splicer to connection channel of spinning machine - Google Patents

Abstract

The invention relates to a textile machine with a plurality of spinning cups (3), in particular a rotor textile machine (1), along which air ducts (4) are arranged, each spinning cup (3 ) is provided with a closable connecting channel (5) through the opening and closing device (9), which has at least one device (6) for generating an air mass whose pressure deviates from the atmospheric level and which also has a An automatic piecing machine (7) operable on a textile machine. Textile machine according to the invention, characterized in that the automatic piecing machine (7) has a connecting device (13) with duct means (LM) and operating means (BM) for passage of the air mass produced , the operating device (BM) is used for the control device to open and close the opening and closing device (9), wherein the pipeline device is designed as an operating device and has at least two working conditions, and the control device controls the two working conditions through the transmission device. The situation is under control.

Description

Method for connecting an automatic piecing machine to a connecting channel of a textile machine

technical field

The present invention relates to a method of spinning cups placed next to the air ducts on a textile machine with a plurality of connection channels, the method uses the connection of an automatic piecing machine that is placed on the channels to change the connection of an operable automatic piecing machine, and places each spinning cup A connecting channel closable by an opening and closing device, the air mass is sucked into the air channel, and the air mass passes through at least one device so that its pressure level is changed relative to the atmosphere. the

Background technique

The work of the textile machine is very regular. The spinning cup determined on the textile machine needs to be supplied with compressed air. In this case, it involves the supply of air masses. Compared with the atmosphere, the pressure of the air masses is either overpressure or low pressure. For example, in rotor spinning spinning machines so-called robots or automatic piecing machines start a spinning rotor in order to carry out specific maintenance work there. Under normal conditions such as suction of loose yarn ends requires a low pressure. It is therefore provided in the known technical solution that a central low-pressure source is arranged on the spinning frame, from which the low pressure is conveyed by means of low-pressure lines passing along the spinning frame. This low-pressure line has a connection channel or opening on each spinning cup, which can be opened when necessary, so that the low-pressure supply of the automatic piecing machine is generated via a connection device thereon. In the known structure, the sealing plate for the low-pressure pipeline has four disk segments, which are similar to the Markov intermittent transmission mechanism, and are rotatably arranged on the low-pressure pipeline around the rotation axis. In this arrangement, a segment covers an opening in each case, and the opening is opened or covered again by further rotation of the closure plate. This provides attached automatic piecing machines which, as they operate along the spinning frame, cause each closure plate to continue to rotate through a certain angle, for example 90°, on each pass. This type of structure has its disadvantages. When the automatic piecing machine moves to a spinning cup, forty spinning cups continue to be placed horizontally, and the sealing plate must be contacted and rotated 40 times on the way, and the low-pressure pipe must also be opened. and re-closed 40 times. This on the one hand causes very high wear on the automatic jointing machine, as well as on the sealing plate and the low-pressure line, and on the other hand produces undesired pressure fluctuations at each opening in the low-pressure line. If two or more automatic jointing machines are used and installed at the same height on the opposite side of the low-pressure pipeline, the pressure fluctuations will be particularly obvious, because the two directly opposite openings of the low-pressure pipeline are opened at the same time, causing pressure fluctuations to be particularly big. Another known device works using a connecting device which is mounted and movable on an operable automatic splicing machine. During operation, the connecting device is separated from the low-pressure pipe and moves in the direction of the low-pressure pipe after reaching the spinning rotor to be started. At the same time, the connecting device has a control device, which opens the sealing plate there along the direction of the low-pressure pipeline during operation, and a pipeline device is attached to the connecting device, which establishes the pipeline connection when reaching the low-pressure pipeline. In order to apply this type of equipment, this requires that all the closing plates of a spinning machine be adapted to the control devices of the connecting devices. The application of such a device in conjunction with the existing sealing plates already on the machine is not possible according to the state of the art. In addition, additional expenditure on process equipment in the form of a control device for the automatic piecing machine is required. the

Contents of the invention

It is therefore the object of the present invention to provide a method by which an automatic piecing machine can be connected to each individual textile cup in a particularly cost-effective and simultaneously low-wear manner. the

The method according to the invention is characterized in that, on the automatic splicing machine, a connecting device is used for the passage of the air mass and for opening and closing the opening and closing device, wherein the connecting device passes through the control device as required The transmission device can have two working conditions. When it is in the first working condition, the opening and closing device works when the automatic jointing machine is in operation, and does not work in the second working condition. the

Other advantages of the present invention are described in conjunction with the following embodiments and drawings. the

Description of drawings

Fig. 1 represents the side view of spinning machine;

Figure 2 represents a longitudinal view of the spinning machine in the first working condition;

Figure 3 represents the longitudinal view of the root spinning machine in the second working condition;

Fig. 4 represents the axial sectional view of connecting device;

Fig. 5 shows the side view of opening and closing device;

Fig. 6 shows the oblique view of opening and closing device;

Figure 7 shows an oblique view of the connecting device in the engaged state. the

Explanation of reference signs:

1. Worsted machine 2. Frame

3. Spinning cup 4. Low pressure pipeline

5. Connection channel 6. Low voltage source

7. Automatic jointing machine 8. Arrow

9. Opening and closing device 10. Sector section

11. Arrow 12. Rotation axis

13. Connection device 14. Arrow

15a. Case part 15b. Case part

15c. Housing part 16. Cylinder

17. Sleeve 18. First cavity

19. Second cavity 20. Input pipe

21. Input pipe 22. Radial sealing ring

23. Radial sealing ring 24. Contact surface

25. Sealing surface 26. Sliding surface

27. Struts 28. Brackets

29. Roller

Detailed ways

FIG. 1 shows a side view of a spinning machine 1 . A plurality of spinning cups 3 are arranged between the frames 2 . In the upper part of the spinning machine 1 is located a low-pressure line 4 and the connecting channel 5 arranged thereon. A low-pressure source 6 is arranged on the left frame 2, and the low-pressure source supplies air to the low-pressure pipeline 4 connected on the frame. An automatic splicing machine 7 is arranged along the low-pressure pipeline 4, which can be operated in the direction of arrow 8. The connecting channel 5 has an associated opening and closing device 9 accordingly. This opening and closing device 9 consists of four cross-shaped segments 10 which are rotatable in the direction of the arrow 11 . If an opening and closing device 9 is rotated by 45°, the lateral connecting channel 5 located below is openable through the space between the two segments 10 . If the opening and closing device 9 is then reversed by 45° or further rotated by 45°, the connecting channel 5 is closed again. If the automatic piecing machine 7 is operated along the spinning frame 1, then the spinning frame according to the invention only works for the opening and closing device 9 associated with the activated spinning cup 3, the other opening and closing devices remain unchanged in their position. the

FIG. 2 is a schematic longitudinal view of the spinning machine 1 . On the frame 2 there are two sets of spinning cups 3 arranged symmetrically to each other, and the low-pressure pipe 4 passes above the spinning cups 3 . Opening and closing device 9 is positioned at the right side and the left side of low-pressure pipeline 4 and can rotate around rotating shaft 12. The automatic splicing machine 7 and its associated connecting device 13 are located on the right in FIG. 2 . Simultaneously, the connecting device 13 leaves the automatic splicing machine 7 in the direction of the arrow 14 and stretches towards the opening and closing device 9 . If the automatic piecing machine 7 moves along the direction of the spinning machine 1, the front of the connection device 13 towards the low-pressure pipeline 4 meets the sector 10 of the opening and closing device 9, and the sector 10 rotates around the axis of rotation 12, so that through the opening The connecting channel 5, the air mass is sucked into the low-pressure pipeline 4 from the automatic splicing machine 7. If the automatic piecing machine 7 leaves the spinning cup 3, the front side of the connecting device 13 rotates around the opening and closing device 9 and returns to a closed position. The spinning cup 3 leaves to the left and to the right. The connecting channel 5 is closed in this way, the connecting device 13 returns in the opposite direction of the arrow 14, and the automatic piecing machine 7 can move to the spinning cup 3 to be started next without contact. the

Fig. 3 shows again the spinning machine shown in Fig. 2, and the connecting device 13 shown in Fig. 3 is in the second working condition. The connecting device 13 is fully returned towards the direction of the automatic piecing machine 7, and when the spinning machine 1 is working in the longitudinal direction, it is ensured that the opening and closing device 9 is in a non-contact state. the

FIG. 4 shows an axial sectional view of the connection device 13 . As can be seen from the figure, the casing is made up of three parts 15a, 15b and 15c, and a cylinder 16 arranged therein can move in the axial direction. A sleeve 17 is installed on the left side of the cylinder 16. Between the housing part 15a and the cylinder 16 a first cavity 18 and a second cavity 19 are formed, which are supplied with fluid via feed lines 20 and 21 . The two cavities 18 and 19 are separated by a radially surrounding cylinder seal 22 . The outward sealing of the cavity is realized by the radial sealing ring 23 . The pressure of the two cavities 18 and 19 is overpressure or low pressure, and the cylinder 16 is moved in the axial direction by changing the supply fluid. The fluid can be in gaseous or liquid state. For example, pneumatic or hydraulic transmission can be used. The radially outer surface of the sleeve 17 is a contact surface 24, which should be designed so that the contact surface and the opening and closing device 9 enter a contact state. The transmission control of the connection device 13 can be accomplished, for example, by a control device of the automatic joint machine 7 , which controls the applied working fluid to enter the delivery pipe 20 or 21 , for example, through an electromagnetic working valve. the

FIG. 5 is another structural form of the opening and closing device 9 . This fishtail-shaped opening and closing device 9 revolves around an axis of rotation 12 , but in this embodiment there is only one segment 10 to cover the associated connecting channel 5 . The lower part of the opening and closing device 9 is a circular sealing surface 25 whose geometry is determined by the associated connecting channel 5 . the

FIG. 6 is a perspective view of the opening and closing device 9 shown in FIG. 5 . The left side of the figure is the sealing surface 25, which is made of special elastic material. The right side of figure is a sliding surface 26, guarantees that opening and closing device 9 has good rotation performance. In the lower part of the opening and closing device 9 there is a strut 27 aligned parallel to the direction of operation of the attached connection device 13 . the

The connecting device 13 shown in Fig. 7 is matched with the opening and closing device 9 shown in Fig. 5 and Fig. 6 . The connecting device 13 is additionally equipped with rollers 29 on the support 28 . Five rollers 29 are arranged in two rows in the operating direction. There are two rollers 29 in the lower row, and three rollers 29 in the upper row. The parallel spacing between the two rows of rollers will at least meet the width of the brace 27 in the opening and closing device 9 . By a suitable arrangement of the rollers 29, it is ensured that the opening and closing device 9 is reliably transferred to the closed position by sliding the rollers 29 on the sides of the struts 27 when the spinning cup 3 moves away. the

The invention is not limited solely to the described embodiments, but many variations are possible within the scope of the claims of the invention. For example, the present invention can also be used on other textile machines besides the above-mentioned worsted spinning machines. Furthermore, in order to adapt the connection device 13 to different operating situations, various other transmission devices and transmission methods can be applied. Furthermore, the present invention can be applied to both low-pressure pipelines and super-pressure pipelines. In particular, a double-acting pneumatic cylinder structure as the transmission of the connecting device 13 is also possible, although it deviates from the scope of the present invention, as shown in FIG. the

Instead of the previously shown and described opening and closing device 9, for example a device with a rubber sealing ring and a complete leaf spring can be used. At the same time, the spring leaf under normal conditions is adjacent to the rubber sealing ring, and seals the low-pressure pipeline 4 . Select the spring pressure to ensure that the seal is always in a low pressure state. It is not until the connecting device 13 is approached that the leaf spring moves into the open position towards the spring force. The shape of the leaf spring is to make in the low-pressure pipeline 4, no matter it is in the closed or open state, it will not be damaged or only slightly damaged by the air flow. the

Another possibility is to place one or two valve throttles on the low-pressure line 4, which can be opened by the connecting device 13. The closing of the valve throttle can be selected to be automatically closed or realized with a connecting device. the

Finally, a slotted membrane can also be used as the opening and closing device 9, wherein the membrane seals automatically by the approaching low pressure, while the connecting device 13 operates in the membrane groove. the

Claims (6)

1. in adjoining of air duct (4), settled the rotor (3) of weaving loom, from then on upper to exercisable automatic yarn piecing machine (7) change method of attachment at a plurality of interface channels (5), wherein for each rotor (3) has arranged one by the closable interface channel of headstock gear (9) (5), air mass passes through in air duct (4), air mass at least makes air mass pressure change with respect to atmosphere by a device (6), it is characterized in that, on automatic yarn piecing machine, applied a kind of jockey (13), can be used for by air mass and unlatching simultaneously and close headstock gear (9), wherein as required, jockey has at least brought two kinds of working conditions from control device through transmission device, when the first working condition, headstock gear (9) is worked when automatic yarn piecing machine (7) operates, and do not work when the second working condition.

2. according to the method described in aforementioned claim, it is characterized in that, headstock gear (9) is unlocked or is closed by a kind of lateral movement of jockey (13).

3. according to the method described in the arbitrary claim in aforementioned claim, it is characterized in that, jockey (13) is in order to change between two kinds of working conditions, towards headstock gear (9) direction or Return-ing direction operation.

4. method according to claim 3, is characterized in that, jockey (13) is before the rotor having started (3) arrives, towards air duct (4) and arrangement headstock gear (9) direction operation thereon.

5. method according to claim 4, it is characterized in that, the operational movement of jockey (13) is towards air duct (4) direction, until after passing through with the own rotor (3) starting rotor (3) contiguous and before it, disconnect from control device.

6. method according to claim 1 and 2, it is characterized in that, headstock gear (9) is by settled the engagement (27,29) of mutual coordination on headstock gear (9) and jockey (13) two limits, at weaving loom, is unlocked or closes during automatic joint machine operation longitudinally.

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