Automatic strip splicing device and unwinding cleaning device of ring spinning machine

Abstract

The utility model discloses an automatic strip splicing device and an unwinding cleaning device of a ring spinner, which comprise a driving device, the fixed end of the driving device is connected to the automatic strip splicing device, the driving end of the driving device is connected with a support frame, and the top end of the support frame facing an unwinding yarn catcher of the ring spinner is connected with an air nozzle assembly and a cleaning head at intervals. The driving device drives the air nozzle assembly and the cleaning head to be close to or away from the unwinding yarn catcher. According to the utility model, residual yarns or other impurities on the backing-off yarn catcher in the ring spinning machine can be automatically cleared.

Description

Technical Field

[0001] This utility model relates to a ring spinning machine. Specifically, it relates to an automatic cleaning device for the unwinding portion of the yarn on the spindle assembly of a ring spinning machine. More specifically, it relates to a cleaning element installed in an automatic splicing device for cleaning the unwinding portion of the yarn at the lower part of the spindle assembly of a ring spinning machine. Background Technology

[0002] In the textile industry, ring spinning machines are commonly used to spin various types of fibers, such as cotton, flax, or wool, to produce yarn. The feed material is supplied to the ring spinning machine in the form of roving. The ring spinning machine then draws the roving to the desired fineness and applies sufficient twist to form a continuous yarn, which is then wound onto bobbins. Yarn breakage in the ring spinning machine is a common and frequent problem during the spinning process, requiring continuous monitoring by workers. Yarn breakage is an unavoidable issue in ring spinning machines, necessitating extensive monitoring by numerous workers on both sides of the entire machine frame length (typically exceeding 1800 spindles). After a yarn breakage, manual splicing and restarting of the spinning sequence are necessary to avoid yarn waste.

[0003] The automatic splicing device is an improvement on the traditional manual splicing method. The automatic splicing device exists in the form of a movable trolley with wheels / rails. The splicing trolley stops in front of each spindle unit that needs splicing. The splicing device typically moves longitudinally along the machine frame channel, stopping in front of the spindle position on the ring spinning machine before the splicing operation begins. Automatic doffing devices are installed on both sides of the ring spinning machine to replace the fully wound yarn bobbins with empty bobbins on the spindles. During normal machine operation, after the bobbins are wound, the annular guide rail of the ring spinning machine moves from the upper part of the winding area to the bottom of the spindle, clamping the yarn from the full bobbin through vertical movement, and winding several layers / turns of yarn on the lower part of the spindle, such as on a barbed yarn catcher or a clamping yarn catcher. The barbed yarn catcher is preferably a Velcro-type barbed yarn catcher. When the full bobbin is lifted during doffing, the yarn wound on the barbed yarn catcher maintains the connection between the yarn travel device and the spindle. To prevent yarn buildup, the yarn layer wound on the barbed yarn catcher needs to be cleaned frequently by hand.

[0004] Without cleaning, excess yarn waste will become entangled in the unwinding area of ​​the spindle, generating a large amount of yarn waste, fly filaments, and dust during normal machine operation. This fly filaments easily accumulate on the sides of the automatic splicing device and the ring spinning machine. The accumulation of fly filaments and dust on the components of the automatic splicing device can affect its efficiency and cause splicing failures when yarn breaks. Furthermore, yarn waste and fly filaments accumulated on the bobbins also affect the quality of the yarn being processed and the overall production efficiency of the ring spinning machine. To overcome these drawbacks, this invention provides an improved cleaning element in the automatic splicing device for removing the unwinding portion of the yarn on the spindle assembly of the ring spinning machine. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic sliver splicing device and an unwinding cleaning device for a ring spinning machine, which can automatically remove residual yarn or other impurities on the unwinding yarn catcher in the ring spinning machine.

[0006] The technical solution of this utility model is:

[0007] An automatic splicing device and a dewinding and cleaning device for a ring spinning machine are characterized in that they include a driving device, the fixed end of which is connected to the automatic splicing device, and the driving end of which is connected to a support frame. The top of the support frame facing the dewinding yarn catcher of the ring spinning machine is connected with an air nozzle assembly and a cleaning head at intervals. The driving device drives the air nozzle assembly and the cleaning head to move closer to or away from the dewinding yarn catcher.

[0008] Furthermore, the nozzle assembly includes one or more nozzles.

[0009] Furthermore, the cleaning head is a round rod.

[0010] Furthermore, the cleaning head is connected to one of the following at the top of the unwinding yarn catcher: a brush, a scraper, a toothed disc, a cutter, or a suction device.

[0011] Furthermore, the support frame is also equipped with a sensor, which is connected to the control unit of the automatic splicing device, for detecting whether yarn waste has accumulated on the unwinding yarn catcher.

[0012] Furthermore, the drive device is electrically connected to a control unit with a human-machine interface, and the control unit with the human-machine interface controls the drive device to operate under a preset program.

[0013] Furthermore, the driving device is one of an electric cylinder, a pneumatic cylinder, an electromechanical actuator, or a hydraulic braking device.

[0014] The beneficial technical effects of this utility model are as follows: This utility model provides an automatic splicing device and an unwinding cleaning device for a ring spinning machine. It is installed on the automatic splicing device and can move with the automatic splicing device to the unwinding yarn catcher on each rotating spindle. Then, the driving device of this utility model drives the air nozzle assembly and the cleaning head to approach the yarn waste on the barbed part of the surface of the unwinding yarn catcher and remove the yarn waste. In addition, this utility model is also equipped with a sensor that can automatically identify whether there is yarn waste on the surface of the unwinding yarn catcher, and then trigger the driving device to drive the air nozzle assembly and the cleaning head to perform the cleaning action. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention mounted on an automatic splicing device and a ring spinning machine;

[0016] Figure 2 This is a schematic diagram of the overall design of this utility model;

[0017] Figure 3 This is a top cross-sectional view of the cleaning device of this utility model on the automatic splicing device, and the unwinding area of ​​the ring spinning machine is also shown in the figure.

[0018] Among them: 1-ring spinning machine, 2-automatic splicing device, 3-roving supply bobbin, 3a-roving, 4-drafting device, 5-bobbin, 7-unwinding yarn catcher, 8-rotating spindle, 9-support frame, 10-cleaning head, 11-drive device, 12-air nozzle, 13-brush. Detailed Implementation

[0019] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] like Figure 1As shown, the ring spinning machine 1 is equipped with an automatic splicing device 2. The ring spinning machine 1 has multiple spinning stations. Each spinning station is equipped with a roving supply bobbin 3 for supplying roving 3a. These rovings 3a are stretched at each spinning station by the drafting device 4 and wound onto bobbins 5 placed on rotating spindles 8. Each rotating spindle 8 of the ring spinning machine 1 is equipped with an unwinding yarn catcher 7 for winding the last layer of yarn reserve when the ring spinning machine 1 restarts, so that yarn can be continued to be wound on the new empty bobbins. The unwinding yarn catcher 7 is an unwinding element of the barbed yarn catcher type, which has intermittent or continuous barbed portions, or a clamping element type yarn catcher with a spring element and a ball for opening and closing the clamping element, or a magnetic type yarn catcher. After the predetermined length of yarn is wound onto the bobbin 5, the annular guide rail moves from the top of the rotating spindle 8 to its bottom. At this time, the yarn is wound onto the barbed part of the surface of the unwinding yarn catcher 7. This is to maintain a further connection between the yarn and the rotating spindle after the yarn is unwound, so as to carry out the next cycle of winding. It is also to continue winding with a newly inserted tube or bobbin after the full bobbin is replaced by an empty tube.

[0021] like Figures 2-3 As shown, this utility model equips the automatic splicing device 2 with an improved cleaning device for removing residual yarn or other impurities from the unwinding yarn catcher 7 on the rotating spindle 8. It includes a drive unit 11, the fixed end of which is connected to the automatic splicing device 2, and the drive end of which is connected to a support frame 9. The support frame 9 has two bracket heads spaced apart side-by-side facing the top of the unwinding yarn catcher 7. One bracket head is connected to an air nozzle assembly, and the other bracket head is connected to a cleaning head 10. The drive unit 11 moves the air nozzle assembly and the cleaning head 10 closer to or further away from the unwinding yarn catcher 7.

[0022] The drive device 11 is one of an electric cylinder, a pneumatic cylinder, an electromechanical actuator, or a hydraulic braking device.

[0023] The nozzle assembly includes one or more nozzles 12, each nozzle 12 being connected via a pipe to an air supply device (not shown) for blowing air onto the outer surface of the unwound yarn catcher 7 to remove impurities and residues thereon.

[0024] The cleaning head 10 is a round rod that, when driven by the drive device 11 and brought close to the unwinding yarn catcher 7, can remove yarn waste from the barbed portion of the surface of the unwinding yarn catcher 7. The cleaning head 10 can be made of bamboo, metal, plastic, ceramic, composite material, or any similar material.

[0025] While the cleaning head 10 is removing yarn waste from the surface of the unwound yarn catcher 7, the air nozzle 12 can simultaneously blow air onto the outer surface of the unwound yarn catcher 7 to achieve a better cleaning effect.

[0026] Preferably, in one embodiment, a brush 13 is attached to the top of the cleaning head 10 facing the unwinding yarn catcher.

[0027] In another embodiment, the cleaning head 10 is connected to one of the following: a scraper, a toothed disc, a cutter, or a suction device, facing the top of the unwinding yarn catcher.

[0028] The support frame 9 is also equipped with a sensor (not shown), which is connected to the control unit on the automatic splicing device 2 to detect whether yarn waste has accumulated on the unwinding yarn catcher 7. When the sensor detects that yarn waste has accumulated on the unwinding yarn catcher 7, it will trigger the drive device 11 of this utility model.

[0029] Furthermore, the drive device 11 is electrically connected to a control unit with a human-machine interface. The control unit with the human-machine interface controls the drive device 11 to operate under a preset program, so that the start time and sequence of the drive device 11 can be adjusted according to the bobbin changing process of the ring spinning machine 1 or the yarn breakage frequency of each spinning station. Multiple start-up programs for the cleaning device can be controlled in the control unit with the human-machine interface, and can be selected on the control unit with the human-machine interface according to the needs of each spinning machine, yarn count, and yarn type.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic sliver splicing device and a dewinding and cleaning device for a ring spinning machine, characterized in that, It includes a drive unit (11), whose fixed end is connected to an automatic splicing device, and whose drive end is connected to a support frame (9). The support frame (9) is connected at intervals to the top of the unwinding yarn catcher of the ring spinning machine with an air nozzle assembly and a cleaning head (10). The drive unit (11) drives the air nozzle assembly and the cleaning head (10) to move closer to or away from the unwinding yarn catcher.

2. The automatic splicing device and the unwinding and cleaning device for a ring spinning machine according to claim 1, characterized in that, The jet nozzle assembly includes one or more jet nozzles (12).

3. The automatic sliver splicing device and the unwinding and cleaning device for a ring spinning machine according to claim 1, characterized in that, The cleaning head (10) is a round rod.

4. The automatic splicing device and the unwinding and cleaning device for a ring spinning machine according to claim 3, characterized in that, The cleaning head (10) is connected to one of the following at the top of the unwinding yarn catcher: a brush (13), a scraper, a toothed disc, a cutter, or a suction device.

5. The automatic sliver splicing device and the unwinding and cleaning device for a ring spinning machine according to claim 1, characterized in that, The support frame (9) is also equipped with a sensor, which is connected to the control unit of the automatic splicing device to detect whether yarn waste has accumulated on the unwinding yarn catcher.

6. The automatic splicing device and the unwinding and cleaning device for a ring spinning machine according to claim 1, characterized in that, The drive device (11) is electrically connected to a control unit with a human-machine interface, and the control unit with the human-machine interface controls the drive device (11) to run under a preset program.

7. The automatic sliver splicing device and the unwinding and cleaning device for a ring spinning machine according to claim 1, characterized in that, The drive device (11) is one of an electric cylinder, a pneumatic cylinder, an electromechanical actuator, or a hydraulic braking device.

Images