JP2016138354A - Small frame stopping mechanism of silk reeling apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stop a small frame by monitoring abnormalities of not only the knot but also the fineness of a yarn in an automatic silk reeling apparatus.SOLUTION: A silk reeling apparatus performs: delivering unwound cocoon filaments drawn from cocoons M in a silk reeling tank 2, by a tractive force by taking up a small frame 1 followed by contacting ends through a filament tip contact device 7; collecting ends with a filament tip collection device 8; passing the collected cocoon filament bundle S through an interval between a first drum wheel 14 and a second drum wheel 13 in a looped state; and in the process, configuring kennel twisting in the cocoon filament bundle in a twisting hook part 15 so as to deliver as raw silk. A fineness monitoring device 16 for monitoring the thickness of the fineness of the cocoon filament bundle is arranged in a thread guide 6 in a stage before the twisting hook part 15 between the first drum wheel 14 and the second drum wheel 13, and when the thickness is abnormal, taking up of the small frame 1 is stopped.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a small frame stopping mechanism of a yarn winding device, and more particularly to a mechanism for monitoring a yarn abnormality in an automatic yarn winding device and stopping the small frame.

  In an automatic reeling machine, the kite yarn unwound and pulled out from the kite in the spinning tank is unwound and pulled together by the pulling force of the small frame winding, and gathered to form a kennel twist. , It is fed out as raw silk.

  In the above case, the kite string is not always uniform, and sometimes the required quality is unwound. As a mechanism for that purpose, a stop lever has been used for a long time to detect the tension of the yarn fed out abnormally and stop the small frame (Patent Document 1).

  The stop lever mentioned above is used to stop the small frame by detecting an increase in the tension of the thread when there is a knot in the thread and it is clogged in the collector or when trouble occurs in the thread path. In view of the mechanism, the yarn abnormality that can be detected is limited to the case where the node is large.

  On the other hand, as a mechanism for detecting smaller nodes, a photoelectric type that passes a thread between a light emitting element and a light receiving element and detects a node based on a change in the amount of light received by the light receiving element, or between electrodes arranged with raw silk in between Capacitance-type non-contact slab catchers that detect nodes based on changes in capacitance are known (Patent Documents 2 and 3), and it is well known that this is arranged in a path after kennel twisting of an automatic yarn feeder. (Patent Document 4).

JP-A-53-74123 JP 05-093325 A Japanese Patent Laid-Open No. 05-098527 Japanese Patent No. 54143758

  In the prior art described above, it is possible to stop the small frame by detecting that a knot has occurred in the raw silk, and it is also possible to detect a fine knot in a non-contact slab catcher.

  By the way, as described above, the kite yarn is not necessarily uniform, and the yarn that does not have the required fineness may be mixed in. However, there is no mechanism for preventing this in the conventional yarn reeling apparatus, and it has been often found at a stage after being wound around the small frame.

  In the above case, the fineness of the yarn bundle cannot be detected by the stop lever, and it is difficult even with a non-contact slab catcher. That is, in the case of a node, since a steep step occurs, it tends to appear as a change in the amount of received light and a significant change in the capacitance between the electrodes, but the change is subtle in the case of the fineness of the yarn bundle, In order to detect it, it is necessary to increase the sensitivity of the slab catcher. However, the string bundle has a thick and thin shape regardless of the fineness depending on the degree of binding, and there is a risk that it cannot be distinguished from an abnormality in fineness and may cause a malfunction.

  The present invention has been created for the purpose of providing a small frame stopping mechanism for a yarn winding device that solves the above-mentioned problems.

  That is, the small frame stopping mechanism of the reeling device of the present invention is drawn out from the kite in the spinning tank and unwinds the unraveled kite string by the pulling force by winding the small frame and joins it through the joint device. In the reeling device that collects the gathered yarn bundles in a loop between the first and second pulleys, and forms a kennel twist in the twisted portion in this process and feeds them as raw yarn A fineness monitoring device that monitors the fineness of the yarn bundle is placed on the yarn path before the twisting section between the first and second pulleys. It is characterized by stopping taking.

  According to a second aspect of the present invention, there is provided a small frame stopping mechanism for a yarn reeling device, wherein the fineness monitoring device of the small frame stopping mechanism is for monitoring a kite yarn bundle passing through a yarn path between the first and second pulleys. It is characterized in that it is a means for monitoring the thickness of the fineness by measuring the load applied to the monitoring wheel, which changes in accordance with the change of the fineness of the yarn bundle, with the impeller rotatably contacting.

  According to a third aspect of the present invention, the small frame stop mechanism of the reeling device has one end fixed to the spinning device, the drum support supporting the monitoring drum, in the fineness monitoring device of the small frame stopping mechanism. The fineness monitoring device is characterized by being fixed to the other end of the load cell.

  According to a fourth aspect of the present invention, there is provided a small frame stop mechanism for a yarn reeling device, wherein the small frame stop mechanism includes a capacitance type or photoelectric non-contact type slab catcher that detects a knot of a kite bundle and a first drum and It is characterized by being arranged on the yarn path in the stage before the twisting part between the second pulleys.

  According to the small frame stopping mechanism of the reeling device of the present invention, the fineness monitoring device for monitoring the fineness of the yarn bundle is arranged on the yarn path before the twisting portion between the first and second pulleys. doing. As a result, winding of the small frame is stopped when the thickness is abnormal, and it is possible to prevent the yarn having the fineness not required from being mixed in at the stage before kennel twisting. This makes it easier to handle.

  Further, according to the small frame stopping mechanism according to claim 2, in the fineness monitoring device, the monitoring pulley is rotatably abutted against the kite yarn bundle passing through the yarn path between the first and second pulleys, By measuring the load applied to the monitoring impeller that changes with the change in the fineness of the yarn bundle, it becomes a means for monitoring the fineness of the fineness, so even if the fineness changes slowly, the load change Since it follows accurately, the thickness of the fineness can be accurately measured. In this case, the string bundle where the monitoring wheel is in contact is the yarn path between the first wheel and the second wheel where the tension is stable, so accurate measurement is not affected by external influences. Is possible.

  Further, according to the small frame stopping mechanism according to claim 4, the electrostatic or photoelectric non-contact slab catcher for detecting the knots of the kite bundle is provided from the twisting portion between the first and second pulleys. Since it is arranged on the yarn path at the previous stage, in addition to abnormal thickness, the presence or absence of knots can be prevented at the previous stage of kennel twisting, so it is easy to handle when you find abnormal yarn Become. Further, in this case, the yarn bundle nodes are detected by the non-contact slab catcher, so that the tension between the first and second impellers is not affected, and the operation of the fineness monitoring device is not hindered.

  According to the small frame stopping mechanism of the above-described reeling device of the present invention, the yarn abnormality that has been conventionally required to be reworked because it was discovered at the stage after being wound on the small frame, It is possible to provide high-quality raw silk because it is detected early in the previous stage and the small frame is stopped, so that the efficiency of the reeling work is dramatically improved. Become.

  Furthermore, since the abnormality monitoring mechanism is arranged on the yarn path between the first and second pulleys, the abnormality monitoring mechanism can be applied to an existing reeling device without significant modification, and the performance of the reeling device is improved at low cost. It becomes possible.

The side view of the yarn feeder which implemented the small frame stop mechanism of this invention. The perspective view of the principal part of a small frame stop mechanism same as the above.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a view showing an example of a yarn reeling device that implements the small frame stopping mechanism of the present invention. This spinning device has a conventionally known structure. That is, in the drawing, symbol M is a group of kites in the spinning bath 2 in the spinning tank 2, and the kite string unraveled from the one constituting the graining is fed out by the pulling force by the winding of the small frame 1, and the rotary joint 7 And gathered by the collector 8. The gathered yarn bundle passes through the first pulley 14 and the second pulley 13 in a loop shape, and in this process, the yarn bundle before passing through the loop and the twisting portion 15 form a kennel twist and are fed out as raw yarn. It is. In the figure, reference numeral 3 is a feeder, 5 is a connecting arm, 4 is a fineness sensor, 9 is a stop lever, and 10 is intertwined.

  Reference numeral 16 in the drawing denotes a fineness monitoring device that is a main part of the present invention. The fineness monitoring device 16 is disposed on the yarn path 11 at a stage before the twisting portion 15 between the first and second pulleys 14 and 13 in order to monitor the fineness of the yarn bundle. Here, the monitoring impeller 18 is rotatably abutted against the yarn bundle S passing through the yarn path 11, and the load applied to the monitoring pulley changed according to the change in the fineness of the yarn bundle. By measuring, it is used as a means for monitoring the thickness of the fineness.

  FIG. 2 is a diagram showing details of the fineness monitoring device 16. Here, the load applied to the monitoring wheel 18 is measured with the load cell 17 composed of the strain gauge 23 disposed on the metal block 21. That is, by fixing the drum support body 19 supporting the monitoring wheel 18 to the other end 20 of the load cell 17 having one end 22 fixed to the spinning device, the load applied to the monitoring wheel is applied to the metal block 21. The change in the thickness of the fineness is measured by measuring the resulting deflection.

  Reference numeral 24 in the drawing denotes a zero return thread guide for the load cell 17, which acts to press the periodic kite bundle S in a direction to pull it away from the monitoring wheel 18. The yarn guide 24 is periodically separated from the monitoring wheel 18 with the yarn guide 24, and the load cell 17 is returned to the zero point to prevent erroneous measurement of the load cell.

  Reference numeral 25 in the figure denotes a non-contact slab catcher that is arranged on a yarn path at a stage before the twisting portion between the first and second pulleys and detects a knot of the kite bundle S. Here, an electrostatic capacitance type that detects a node based on a change in electrostatic capacitance between electrodes arranged with the string bundle S interposed therebetween is adopted.

  Reference numeral 11 in the figure denotes a small frame stopper for stopping the small frame by coming into contact with the small frame by a cylinder 12 that operates when a yarn abnormality occurs.

M 繭 group S 繭 Thread bundle
DESCRIPTION OF SYMBOLS 1 Small frame 2 Spinning tank 3 Feeder 4 Fineness sensor 5 Joint arm 6 Yarn path 7 Rotating joint 8 Concentrator 9 Stop lever 10 Entanglement 11 Small frame stopper 12 Cylinder 13 Second drum 14 First Drum wheel 15 Twisted section 16 Fineness monitoring device 17 Load cell
18 Monitoring Drum 19 Drum Support 20 Other End of Load Cell 21 Metal Block 22 One End of Load Cell 23 Strain Gauge 24 Zero Return Thread Guide 25 Non-contact Slab Catcher

Claims (4)

  Pulling out the cocoon string from the cocoon in the reeling tank, unwinding the cocoon string by the pulling force by winding the small frame, and joining it through the joint device, gathering together with the gathering device, the gathered kite string bundle first A fineness monitoring device for monitoring the thickness of the yarn bundle in a reeling device that passes between the drum and the second pulley in a loop shape and feeds the yarn bundle as a raw yarn by forming a kennel twist in the twisting section in this process. Is arranged on a yarn path in a stage before the twisting portion between the first and second pulleys, and the winding of the small frame is stopped when the thickness is abnormal. Stop mechanism.   In the fineness monitoring device, the monitoring drum is rotatably abutted against the thread bundle passing through the yarn path between the first and second pulleys, and changes as the fineness of the thread bundle changes. 2. A small frame stopping mechanism for a yarn winding device according to claim 1, wherein the fineness is monitored by measuring a load applied to the impeller.   3. A small frame stopping mechanism for a yarn spinning device according to claim 2, wherein a pulley support body supporting a monitoring pulley is fixed to the other end of a load cell having one end fixed to the yarn spinning device, thereby providing a fineness monitoring device.   The capacitance-type or photoelectric-type non-contact type slab catcher for detecting the knots of the kite bundle is arranged on the yarn path before the twisting portion between the first and second pulleys. A small frame stopping mechanism of the yarn winding device according to any one of the above.

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