Can changing device for drafting broken slivers of ramie gilling machine

Abstract

The utility model relates to the technical field of textile machinery, in particular to a drafting broken sliver creeling device of a ramie gilling machine, which comprises a base and a horizontal pushing frame, a can coiler is arranged above the horizontal pushing frame, a processing position is formed between the can coiler and the base, a sliver outlet is eccentrically arranged on the can coiler, a clamping block is arranged at the lower end of the can coiler, and the clamping block is arranged on the base. A standby can position is arranged between the can coiler and the base, a first can is placed on the processing position, a second can is placed on the standby can position, the horizontal pushing frame can move on the side of the first can and the side of the second can, and a rotating arm capable of pushing the first can and the second can on the base is rotationally arranged on the horizontal pushing frame. According to the technical scheme, the can changing device can automatically achieve position changing of the empty can and the full can and can achieve automatic breaking of slivers after the can is full, meanwhile, the can changing device has a drafting sliver breaking function and a friction sliver breaking function, the sliver breaking reliability can be improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, and specifically provides a bobbin changing device for drawing and breaking bars of a ramie gill box. Background Art

[0002] During the front spinning process, the fibers will become strips after carding. For processes such as drawing and gilling, the strips need to be stored in bobbins and transported to each process. Therefore, the bobbin changing operation is required during the manufacturing process. The traditional bobbin changing method requires manual handling of bobbins and manual breaking of the strips.

[0003] The manual breaking of the strip is not by strong pulling. The specific steps of manually breaking the strip are as follows: Hold the strip at two points at a certain distance, and then stretch it to both sides to cause relative slippage of the fiber bundles in the strip, so as to divide one strip into two. The two broken ends of the strip are thinner than the main body part. Therefore, when the subsequent two strips are lapped, it is the lap of details with details. After subsequent feeding and mixing, the strips at the original lap part will not produce thick and thin details.

[0004] The strip discharging process of the traditional drawing frame is as follows: After the strip is formed by the buncher, it first passes through the trumpet-shaped orifice, then is compacted and made uniform by the pressure roller, and then is coiled into the bobbin by the coiler. The discharging roller usually needs to be installed with a sensor to detect the discharging length in real time. The PLC controls the machine components by receiving the sensor signal. When the bobbin is full or reaches the set length, the machine stops and alarms, and then manual bobbin changing is adopted.

[0005] In order to replace manual bobbin changing, there are research schemes on automatic bobbin changing technology in the prior art. The existing bar breaking technologies are mainly divided into passive friction bar breaking and active mechanical shearing bar breaking. These two methods mainly have the following problems: 1. The reliability of the simple friction bar breaking method is relatively low. Especially when processing fibers with relatively high strength, such as processing ramie fibers, the bar breaking effect is difficult to guarantee; 2. The mechanical cutting bar breaking method is usually only applicable to short fibers, and the success rate of breaking long fibers is very low. Even if the strip can be quickly cut, there is also the problem that the broken end of the strip is too neat, which will have an adverse effect during the subsequent feeding and lapping of the strip, easily form thick knots, and further cause unevenness of the yarn evenness.

[0006] The automatic bobbin changing device not only needs to complete the position replacement of the empty bobbin and the full bobbin, but also needs to break the strip from the discharging device when the bobbin is full. As can be seen from the above, the existing bobbin changing devices generally lack a reliable automatic bar breaking function.

[0007] Therefore, based on the advantages of the method of manually breaking the strip, it is of great significance to propose a bobbin changing device that can simulate the principle of manually breaking the strip and has a reliable and efficient automatic bar breaking function for improving the spinning production efficiency and ensuring the product quality. Content of the Utility Model

[0008] In order to solve the above problems, the utility model provides a bobbin changing device for drafting broken strips of a ramie gill box. By means of combined drafting and friction broken strips, a gradually thinning broken end can be formed to improve the evenness of the sliver fed into the subsequent process for lapping. It is particularly applicable to the broken end bobbin changing part in processes such as spinning drawing.

[0009] A bobbin changing device for drafting broken strips of a ramie gill box provided by the utility model includes a base and a flat push frame slidably connected to the side end of the base; above the flat push frame is provided a gill box table, and a coiler is arranged on the gill box table. A processing position is formed between the coiler and the base; an outlet for the sliver is eccentrically arranged on the coiler. At the lower end of the coiler is provided a clamping seat for clamping and breaking the sliver during broken strip. One side of the clamping seat close to the outlet for the sliver includes a clamping block, and the sliver coming out downward from the outlet for the sliver passes through the middle of the clamping block; a bobbin one for receiving the sliver coming out of the coiler is movably placed at the processing position on the base, and both the outlet for the sliver and the clamping block are located above the bobbin one; between the coiler and the base, there is also a spare bobbin position located on the side of the processing position, and a bobbin two to be fed into the processing position is movably placed on the spare bobbin position; the flat push frame can move on the side of the bobbin one and the bobbin two, and a rotating arm is rotatably arranged on the flat push frame and can push the bobbin one and the bobbin two on the base.

[0010] Furthermore, a guiding pipe communicated with the outlet for the sliver is arranged at the lower end of the coiler, and the lower end of the guiding pipe is located above the clamping block; the guiding pipe is a conical pipe with a gradually decreasing inner diameter from top to bottom.

[0011] Furthermore, a first steering cylinder is arranged at the lower end of the coiler, and the upper end of the clamping seat is connected to the power output rod of the first steering cylinder.

[0012] Furthermore, the power output rod of the first steering cylinder is perpendicular to the base and parallel to the central axis of the guiding pipe.

[0013] Furthermore, a sliding table parallel to the base is arranged at the side end of the base, and a sliding groove is formed on the sliding table; the lower end of the flat push frame is connected with a driving slider, and the flat push frame can horizontally slide in the sliding groove along the radial direction of the bobbin one and the bobbin two through the driving slider.

[0014] Furthermore, the flat push frame includes two symmetrically arranged ones, and the driving slider is connected between the two flat push frames and is located at the lower ends of the two flat push frames; the length of the sliding table is greater than the length of the base.

[0015] Furthermore, the rotating arm is hinged to the upper end of the flat push frame, and the rotating arm can rotate to a state parallel to the base or a state perpendicular to the base; the rotating arm includes two respectively arranged on both side ends of the two flat push frames, and the two rotating arms are symmetrically arranged. The distance between the two rotating arms is greater than the outer diameters of the bobbin one and the bobbin two.

[0016] Furthermore, a rotating shaft located above the driving slider is provided at the upper end of the horizontal push frame, two rotating arms are respectively connected to the two ends of the rotating shaft, and the rotating arms are hinged to the horizontal push frame through the rotating shaft.

[0017] Furthermore, the rotating shaft passes through the rotating arm and extends to the outside of the rotating arm; the end of the rotating shaft located outside the rotating arm is connected to the second steering cylinder, and the rotating shaft is driven by the second steering cylinder to drive the rotating arm to swing.

[0018] Furthermore, a first position sensor close to the sliding table is provided on the base, and the first position sensor is located at a corner away from the processing position; a second position sensor is provided on the side of the sliding table away from the first position sensor, and the second position sensor is arranged close to the base and in a straight line with the first position sensor; the horizontal movement of the push frame is controlled by the first position sensor and the second position sensor.

[0019] Compared with the prior art, the utility model can achieve the following beneficial effects: the can changing device in the utility model has a simple and compact structure, can coordinate with the strip breaking device to complete the strip breaking in the can changing process, has the dual characteristics of stretching strip breaking and passive friction strip breaking, can effectively improve the reliability of strip breaking, is suitable for high-strength fibers and long fibers, can reduce the coarse sections of the overlapping parts of the subsequent fed strips, and improve the uniformity of the strips fed to the next process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the drum changing device provided according to an embodiment of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of a drum changing device provided according to an embodiment of the utility model;

[0022] Figure 3 The working process of the drum changing device provided by the embodiment of the utility model is as follows Figure 1 ;

[0023] Figure 4 The working process of the drum changing device provided by the embodiment of the utility model is as follows Figure 2 ;

[0024] Figure 5 The working process of the drum changing device provided by the embodiment of the utility model is as follows Figure 3 ;

[0025] Figure 6 The working process of the drum changing device provided by the embodiment of the utility model is as follows Figure 4 ;

[0026] Figure 7 The working process of the drum changing device provided by the embodiment of the utility model is as follows Figure 5 .

[0027] The reference numerals therein include: base 1, flat push frame 2, coiler 3, strip outlet 4, clamping seat 5, clamping block 6, first bobbin 7, second bobbin 8, rotating arm 9, guide tube 10, first steering cylinder 11, power output rod 12, sliding table 13, sliding groove 14, driving slider 15, rotating shaft 16, second steering cylinder 17, first position sensor 18, second position sensor 19, sliver 20, gilling machine table 21. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the attached Figure 1-7 drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and do not constitute a limitation to the present utility model.

[0029] A bobbin changing device for drafting and breaking sliver of a ramie gilling machine, comprising a base 1 and a flat push frame 2 slidably connected to the side end of the base 1. Above the flat push frame 2, there is a gilling machine table 21. A coiler 3 is arranged on the gilling machine table 21. A processing position is formed between the coiler 3 and the base 1. An eccentric strip outlet 4 is arranged on the coiler 3, that is, the strip outlet 4 of the coiler 3 is eccentrically arranged relative to the disk axis of the coiler 3. During the actual working process, the front end of the coiler 3 includes an inlet inclined tube communicated with the strip outlet 4. At the lower end of the coiler 3, there is a clamping seat 5 for clamping and breaking the sliver 20 during sliver breaking. One side of the clamping seat 5 close to the strip outlet 4 includes a clamping block 6. The sliver 20 coming out downward in the strip outlet 4 passes through the middle of the clamping block 6. A first bobbin 7 for receiving the sliver 20 coming out of the coiler 3 is movably placed at the processing position on the base 1. Both the strip outlet 4 and the clamping block 6 are located above the first bobbin 7.

[0030] Between the coiler 3 and the base 1, there is also a spare bobbin position located on the side of the processing position. The processing position is Figure 1 shown at P in the figure, and the spare bobbin position is as Figure 1 shown at S in the figure. A second bobbin 8 to be moved into the processing position is movably placed on the spare bobbin position. When the sliver 20 in the first bobbin 7 is full or the sliver 20 in the first bobbin 7 reaches the set length, the first bobbin 7 will be pushed out, and the second bobbin 8 will be pushed to the processing position for the next round of operation.

[0031] At the lower end of the coiler 3, there is a guide tube 10 communicated with the strip outlet 4. The lower end of the guide tube 10 is located above the clamping block 6. The guide tube 10 is a tapered tube with a gradually decreasing inner diameter from top to bottom. Through the tapered tube structure of the guide tube 10, the strip outlet direction of the sliver can be better controlled. At the lower end of the coiler 3, there is Figure 2The first steering cylinder 11 shown in the figure is fixed to the lower end of the coiler 3 and can rotate following the coiler 3. The upper end of the clamping seat 5 is connected to the power output rod 12 of the first steering cylinder 11. During operation, the coiler 3 rotates itself to make the sliver spiral into the first bobbin 7. At this time, the first steering cylinder, the clamping seat 5, and the clamping block 6 will rotate synchronously following the first steering cylinder, which can prevent the sliver from being wound around the clamping block 6 during the above process.

[0032] The power output rod 12 of the first steering cylinder 11 is perpendicular to the base 1 and parallel to the central axis of the guide tube 10. A sliding table 13 parallel to the base 1 is provided at the side end of the base 1. A chute 14 is formed on the sliding table 13. The lower end of the flat push frame 2 is connected with a driving slider 15. The flat push frame 2 can move on the sides of the first bobbin 7 and the second bobbin 8. Specifically, the flat push frame 2 can horizontally slide radially along the first bobbin 7 and the second bobbin 8 through the driving slider 15 in the chute 14. The radial directions of the first bobbin 7 and the second bobbin 8 are as Figure 4 shown in the M direction in the figure.

[0033] A rotating arm 9 capable of pushing the first bobbin 7 and the second bobbin 8 on the base 1 is rotatably provided on the flat push frame 2. The flat push frame 2 includes two symmetrically arranged ones. The driving slider 15 is connected between the two flat push frames 2 and is located at the lower ends of the two flat push frames 2. The length of the sliding table 13 is greater than the length of the base 1. The rotating arm 9 is hinged to the upper end of the flat push frame 2. The rotating arm 9 can rotate to a state parallel to the base 1 or a state perpendicular to the base 1. When it is necessary to push the first bobbin 7 and the second bobbin 8, the rotating arm 9 is parallel to the base 1. When it is not necessary to push the first bobbin 7 and the second bobbin 8 and needs to be reset, the rotating arm 9 is perpendicular to the base 1.

[0034] The rotating arm 9 includes two respectively arranged on the two side ends of the two flat push frames 2. The two rotating arms 9 are symmetrically arranged. The distance between the two rotating arms 9 is greater than the outer diameters of the first bobbin 7 and the second bobbin 8, so that the first bobbin 7 or the second bobbin 8 can be accommodated between the two rotating arms 9.

[0035] A rotating shaft 16 located above the driving slider 15 is provided at the upper end of the flat push frame 2. The two rotating arms 9 are respectively connected to the two ends of the rotating shaft 16. The rotating arm 9 is hinged to the flat push frame 2 through the rotating shaft 16. One side end of the rotating shaft 16 passes through the rotating arm 9 and extends to the outside of the rotating arm 9. The end of the rotating shaft 16 located outside the rotating arm 9 is connected with a second steering cylinder 17. By driving the rotating shaft 16 through the second steering cylinder 17 to drive the rotating arm 9 to swing, the rotating arm 9 can be made parallel to the base 1 or perpendicular to the base 1 in this way.

[0036] A first position sensor 18 close to the sliding table 13 is provided on the base 1. The first position sensor 18 is located at a corner away from the processing position. A second position sensor 19 is provided on the sliding table 13 on a side away from the first position sensor 18. The second position sensor 19 is arranged close to the base 1 and in a straight line with the first position sensor 18. The horizontal movement of the push frame 2 is controlled by the first position sensor 18 and the second position sensor 19.

[0037] Here’s how it works:

[0038] The sliver 20 comes out of the sliver outlet 4 of the coiler 3, passes through the guide tube 10 first, and then passes through the middle of the clamping block 6 to enter the sliver can 7 at the processing position. At this time, the clamping block 6 is in an open state. When the sliver 20 in the sliver can 7 is full or the sliver 20 in the sliver can 7 reaches the set length, the needle combing machine and the coiler 3 stop working. At this time, the clamping block 6 is driven to retract to clamp the sliver 20.

[0039] Then, the first steering cylinder 11 is started and drives the clamping seat 5 and the clamping block 6 to deflect at a certain angle synchronously through its power output rod 12. Figure 3 The strip 20 shown is pulled and stretched. After the strip 20 is stretched and thinned, the clamping block 6 is released, and the clamping seat 5 drives the clamping block 6 to return to its original position.

[0040] At this time, the horizontal push frame 2 is located at the standby cylinder position as a whole. The driving slider 15 drives the horizontal push frame 2 to move along the slide groove 14 and along the Figure 5 The rotating arm 9 is parallel to the base 1. The two rotating arms 9 touch the can 1 7 and the can 2 8 respectively and push the can 1 7 horizontally to the outside of the base 1. The can 2 8 is pushed from the standby can position to the processing position. The movement of the can 1 7 and the can 2 8 is shown in the figure. Figure 4 At the same time, the sliver 20 in the can 7 is as shown. Figure 4 As shown, the strip 20 is stretched outward, and the detail part of the strip 20 contacts and rubs against the inner side of the guide tube 10 or the clamping block 6 to break the strip. Figure 5 This is a schematic diagram after the strip is broken.

[0041] When the empty can 8 reaches the processing position from the spare can position, the second position sensor 19 responds, the second steering cylinder 17 starts to drive the rotating shaft 16 to rotate, and the rotating shaft 16 drives the rotating arm 9 to rotate 90°. At this time, the rotating arm 9 is perpendicular to the base 1, and then drives the slider 15 to move, driving the push frame 2 to return to its original position, that is, to the side of the spare can position. When the can 8 reaches the processing position, Figure 5 As shown, when the push frame 2 is reset, Figure 6 As shown, at this time, the first position sensor 18 responds, the second steering cylinder 17 is reset, and the rotating arm 9 is reset to a state parallel to the base 1. Figure 6 - Figure 7 shown.

[0042] At this time, the sliver can 8 is the processing can, and the sliver discharging operation can be carried out step by step in the sliver can 8 located at the processing position according to actual needs.

[0043] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A ramie gill machine drawing broken sliver tube changing device, characterized in that: It includes a base and a push frame slidably connected to the side end of the base; a pin combing machine table is provided above the push frame and a strip coiler is provided on the pin combing machine table, and a processing position is formed between the strip coiler and the base; an eccentric strip outlet is provided on the strip coiler, and a clamping seat for clamping and tearing the strip when the strip is broken is provided at the lower end of the strip coiler, and the clamping seat includes a clamping block on the side close to the strip outlet, and the strip coming out of the strip outlet downward passes through the middle of the clamping block; a strip barrel 1 for receiving the strip coming out of the strip coiler is movably placed at the processing position on the base, and the strip outlet and the clamping block are both located above the strip barrel 1; a spare barrel position located on the side of the processing position is also included between the strip coiler and the base, and a strip barrel 2 to be entered into the processing position is movably placed on the spare barrel position; the push frame can move to the side of the strip barrel 1 and the strip barrel 2, and a rotating arm that can push the strip barrel 1 and the strip barrel 2 on the base is rotatably provided on the push frame.

2. The bobbin changing device for drawing broken slivers of ramie gill carding machine according to claim 1, characterized in that: The lower end of the coiler is provided with a guide tube connected with the strip outlet, and the lower end of the guide tube is located above the clamping block; the guide tube is a tapered tube with an inner diameter gradually decreasing from top to bottom.

3. The barrel changing device for drawing broken ramie slivers of a ramie gill carding machine according to claim 2, characterized in that: The lower end of the coiler is provided with a first steering cylinder, and the upper end of the clamping seat is connected with the power output rod of the first steering cylinder.

4. The barrel changing device for drawing broken ramie slivers of a ramie gill carding machine according to claim 3, characterized in that: The power output rod of the first steering cylinder is perpendicular to the base and parallel to the central axis of the guide tube.

5. The bobbin changing device for drawing broken ramie slivers of a ramie gill carding machine according to claim 3, characterized in that: A sliding platform parallel to the base is arranged at the side end of the base, and a slide groove is provided on the sliding platform; a driving slider is connected to the lower end of the horizontal push frame, and the horizontal push frame can slide horizontally in the slide groove along the radial direction of the first and second cans through the driving slider.

6. The bobbin changing device for drawing broken slivers of ramie gill carding machine according to claim 5, characterized in that: The horizontal push frames include two symmetrically arranged ones, the driving slider is connected between the two horizontal push frames and is located at the lower ends of the two horizontal push frames; the length of the sliding platform is greater than the length of the base.

7. The bobbin changing device for drawing broken slivers of a ramie gill carding machine according to claim 6, characterized in that: The rotating arm is hinged to the upper end of the push frame, and the rotating arm can rotate to a state parallel to the base or perpendicular to the base; the rotating arm includes two rotating arms respectively arranged on the two side ends of the two push frames, the two rotating arms are symmetrically arranged, and the distance between the two rotating arms is greater than the outer diameters of the first and second cans.

8. The bobbin changing device for drawing broken slivers of a ramie gill carding machine according to claim 7, characterized in that: The upper end of the horizontal push frame is provided with a rotating shaft located above the driving slider, two rotating arms are respectively connected to the two ends of the rotating shaft, and the rotating arms are hinged to the horizontal push frame through the rotating shaft.

9. The bobbin changing device for drawing broken slivers of a ramie gill carding machine according to claim 8, characterized in that: The rotating shaft passes through the rotating arm and extends to the outside of the rotating arm; the end of the rotating shaft located outside the rotating arm is connected to a second steering cylinder, and the rotating shaft is driven by the second steering cylinder to drive the rotating arm to swing.

10. The bobbin changing device for drawing broken slivers of a ramie gill carding machine according to claim 9, characterized in that: The base is provided with a first position sensor close to the sliding table, and the first position sensor is located at a corner away from the processing position; a second position sensor is provided on the side of the sliding table away from the first position sensor, and the second position sensor is arranged close to the base and in a straight line with the first position sensor; the horizontal movement of the push frame is controlled by the first position sensor and the second position sensor.

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