JP4039388B2 - Automatic winder bobbin preparation device - Google Patents

Description

  The present invention relates to a configuration of a bobbin preparation device for an automatic winder that feeds a bobbin thread to an automatic winder.

  An example of this type of bobbin preparation device is disclosed in Patent Document 1. In FIG. 1 of Patent Document 1, the bobbin preparation device is provided with a supply path for conveying a bobbin inserted in a tray to an automatic winder. A return path for returning a tray with an empty bobbin discharged from the automatic winder is connected to the supply path. The return path tray is configured so that an empty bobbin is pulled out and a bobbin with a thread wound thereon is attached to the supply path.

  In the configuration of Patent Document 1, the supply path is provided with a lead-out portion that feeds the yarn end of the bobbin. The lead-out portion includes a cutter mechanism that unwinds and cuts the bunch winding along the supply path and close to the side of the bobbin, a lead-out mechanism that draws the unwound and cut yarn from the yarn layer, and A thread end insertion mechanism that cuts into a predetermined length and inserts it into the center hole of the bobbin is sequentially arranged. The processing speed of the extraction unit can be set by switching to 20 (low speed), 30 (medium speed), 40 (high speed) per minute, for example. In addition, the extraction success rate of the extraction unit tends to be stable when the processing speed is low.

Patent Document 1 is configured as follows in view of the fact that there is a wave in the number of bobbins supplied to the lead-out unit in response to a request from the automatic winder. That is, a sensor for detecting that a plurality of bobbins are connected to each other is provided on the inlet side of the outlet portion, and there are many requests for bobbins from the automatic winder, and a plurality of bobbins are connected to the inlet side of the outlet portion. When the sensor detects, a control unit is provided that controls the extraction unit from a normal processing speed to a high processing speed based on the detection signal. According to Patent Document 1, it is possible to improve the operation rate of the automatic winder and the success rate of the extraction of the extraction unit.
Japanese Utility Model Publication No. 6-35259 (FIG. 1, 0009, etc.)

  Here, as shown in FIG. 1 of Patent Document 1, the bobbin preparation device is provided with a bypass path that branches from the supply path on the outlet side of the outlet portion and joins the return path. Although this bypass path is not described in Patent Document 1, it is assumed that the bobbin that has failed to be repeatedly extracted in the outlet portion is discharged from the outlet portion of the outlet portion and returned to the inlet side of the outlet portion again. it can. That is, for example, when the yarn end is abnormal, for example, when the yarn end is wound in the yarn layer in the bobbin, a mistake is often made even if the extraction is performed several times in the extraction portion. In order to prevent the processing efficiency of the outlet part from being lowered, it is necessary to discharge such a defective bobbin from the outlet part of the outlet part. However, if the failed bobbin is supplied to the automatic winder side as it is, the automatic winder side Since it causes a trouble, it is returned to the return path side by the bypass path.

  By providing the bypass path, bobbins with abnormal yarn ends as described above (bobbins that fail many times in spout) are supplied to the bypass path → the bypass path → the return path → the supply path → the bypass path → the return path →・ ・ And, unless the processing at the outlet is successful, the circulation route will circulate indefinitely. Here, for example, if such a circulating bobbin is found by an operator's patrol inspection, the bobbin thread end is returned to normal by manual operation, so that the extraction at the outlet is successful and the escape from the circulation path is achieved. Can be supplied to the automatic winder. However, as automation and labor saving progress in recent years and the frequency of the patrol inspection decreases, a plurality of abnormal bobbins at the yarn end are likely to be generated over time and easily accumulated in the circulation path.

  In such a case, even if the bobbin request from the automatic winder is actually small, the bobbin frequently forms a line on the inlet side of the mouth portion, and the mouth portion frequently performs high-speed processing by the signal of the sensor. It will be. In other words, the bobbin that has failed to be extracted many times should be a low-speed process with a high extraction success rate, but the extraction unit will perform a high-speed process. As a result, the squeezing fails more and more, and the bobbin staying in the circulation route is not solved any time, and the squeezing part performs higher-speed processing and falls into a vicious circle.

  In addition, if bobbins that fail to be delivered repeatedly accumulate as described above, the delivery unit will perform high-speed processing even if the bobbin request amount from the automatic winder is small, and various devices in the delivery unit A large load is applied to components (such as the cutter mechanism, the lead-out mechanism, and the thread end insertion mechanism), and wear and fatigue progress quickly. Therefore, it is difficult to say that the service life of various devices in the lead-out portion is shortened and frequent maintenance is required, which meets the recent demand for labor saving.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to the viewpoint of this invention, the bobbin preparation apparatus of an automatic winder comprised as follows is provided. A supply path for conveying the bobbin inserted in the tray to the automatic winder, a return path for returning the bobbin discharged from the automatic winder, and a supply path for performing the bobbin opening process, An outlet portion that can change the outlet processing speed, and a bobbin that is provided so as to branch from the supply path and merge into the return path, and that has been discharged due to failure of the extraction process by the outlet section, is supplied to the return path. A sensor for detecting the passage of the return bobbin provided on the upstream side in the bobbin conveyance direction from the junction with the bypass path in the bypass path for returning and the detection of the bobbin per predetermined time by the sensor A control unit that controls the processing speed of the extraction unit to be higher when the number increases.

  With this configuration, even if bobbins that have been paid out due to misfeeding processing in the outlet section are accumulated in the bypass path, return path, and supply path, the number of return bobbins in the automatic winder is small (that is, the automatic winder If the bobbin request amount is small), the processing speed of the outlet portion will not be high. Therefore, when the bobbin request amount of the automatic winder is small, it is possible to perform low-speed processing with a high extraction success rate for the bobbin returning to the bypass path due to missed extraction processing. The probability of eliminating the accumulation of increases. In addition, since it is possible to reduce the case where the processing speed of the lead portion becomes high, it is possible to reduce a large load on the components of various processing devices of the lead portion, and to extend the life by delaying the progress of wear and fatigue of the parts, The necessary frequency of maintenance can be reduced.

The bobbin preparation device for the automatic winder is preferably configured as follows. It further comprises an extraction part for extracting an empty bobbin on the return path from the tray, and an insertion part for mounting the bobbin on which the thread is wound around the tray. When the number of bobbins detected per predetermined time by the sensor increases, the control unit controls the processing speed of the extraction unit to be on the high speed side, and the processing speed of the extraction unit and the insertion unit is also high. Control to be.

  With this configuration, if the bobbin required amount of the automatic winder increases, the processing speed of the extraction unit and the insertion unit will increase as well as the processing speed of the lead-out unit, so that the bobbin supply capacity to the automatic winder side is appropriately increased. Therefore, it is possible to avoid a reduction in the operating rate of the automatic winder due to insufficient supply of bobbins.

The bobbin preparation device for the automatic winder is preferably configured as follows. Further comprising a bobbin supply device for supplying one by one before Symbol extraction unit bobbins from the feedback path. When the number of bobbins detected per predetermined time by the sensor is increased, the control unit controls the bobbin supply device so that the supply speed of the bobbin supply device is increased, whereby the extraction unit and the bobbin transport than the extraction unit are controlled. The processing speed of the upright portion located on the downstream side in the direction is increased.

With this configuration, as described above, it is possible to effectively avoid a reduction in the operating rate of the automatic winder with simple control for changing the supply speed of the bobbin supply device.

  Next, embodiments of the invention will be described. FIG. 1 is a schematic plan view showing an overall configuration of a bobbin preparation device according to an embodiment of the present invention.

  In FIG. 1, the automatic winder 1 includes a plurality of winding units (not shown). A bobbin preparation device 2 according to an embodiment of the present invention is provided at one end of the automatic winder 1. The bobbin preparation device 2 includes a supply path 5 that conveys the bobbin 4 in an unillustrated tray to the automatic winder 1, a return path 6 that returns the empty bobbin 4 ′ discharged from the automatic winder 1, Is provided. Although not shown, the tray has a hollow shape with an open bottom. In the following description, the downstream side in the transport direction of the bobbins 4 and 4 ′ may be simply referred to as “downstream side”, and the upstream side in the transport direction may be simply referred to as “upstream side”.

  The return path 6 is provided with an extraction part 31 for extracting the empty bobbin 4 ′ returned from the automatic winder 1 side from the tray and an insertion part 32 for mounting the actual bobbin 4 on the tray. And the tray which passed the extraction part 31 and the insertion part 32 from the return path 6 is conveyed via the said supply path 5 to the extraction part 7 demonstrated below.

  The supply path 5 is provided with an outlet portion 7 that performs an outlet processing of the yarn end of the bobbin 4. Various configurations can be conceived as a detailed configuration of the outlet 7. For example, as in the above-described Patent Document 1, the bobbin 4 is conveyed from the inlet in to the outlet out by intermittently rotating with the bobbin 4 placed thereon. A rotating plate, a cutter device that unwinds and cuts the bunch wound formed on the bobbin 4, a yarn end suction unwinding device that sucks the yarn end while rotating the bobbin 4 in the direction of unwinding the yarn, A configuration including a yarn end insertion device that cuts the formed yarn at a predetermined length and inserts the yarn into a hollow portion in the tray is conceivable.

  The mouth opening unit 7 is provided with a mouth opening control device 18 for controlling the various devices described above. This mouth opening control device 18 has three processing speeds of the above-mentioned various mouth-out processes, ie, low speed (20 / min), medium speed (30 / min), and high speed (40 / min). It is configured so that it can be switched to stages.

  Further, the mouthing unit 7 is provided with a sensor 10 for detecting whether or not the mouthing process is successful. The sensor 10 is electrically connected to the mouthing control device 18. When the sensor 10 detects the failure of the extraction, the extraction control device 18 returns the bobbin 4 from the outlet out to the inlet in via the return path without discharging the bobbin 4 from the outlet out to the supply path 5. Thus, each device is controlled so as to perform the above-described extraction processing again.

  Further, the bobbin preparation device 2 is provided with a control unit 25, which sends a signal to the mouthing control device 18 of the mouthing unit 7, the extraction unit 31, the insertion unit 32, and the like. To control the operation of the bobbin preparation device 2 as a whole. In addition, this control part 25 is good also as a structure which performs control of the whole automatic winder 1 collectively.

  A bypass path 11 is provided downstream from the outlet 7 so as to be branched from the supply path 5. The bypass path 11 is configured to merge with the return path 6 described above. Then, switching between sending the bobbin paid out from the outlet of the outlet 7 to the automatic winder 1 side or sending it to the bypass path 11 is a solenoid installed at a location where the supply path 5 branches to the bypass path 11. 12 is performed.

  When the sensor 10 detects the failure of the mouthing process, the mouthing control device 18 of the mouthing unit 7 is configured to count the number of failures. For the bobbin 4i that has reached the predetermined number of unsuccessful dispensings, the bobbin 4i is dispensed from the outlet out to the supply path 5, and a signal indicating that the bobbin 4i that has been dispensed is dispensed is transmitted to the control unit 25. Upon receiving this, the control unit 25 sends a signal to the solenoid 12 and switches so that the bobbin 4i with a misfeed is sent to the bypass path 11 side.

  With the above configuration, by sending the bobbin 4i with a misfeed to the bypass path 11 from the supply path 5, it is possible to avoid the bobbin 4i with a misfeed staying in the mouth part 7 forever and lowering the processing efficiency of the mouth part 7. ing. Note that a discriminating device (not shown) is provided in the extraction section 31 and the insertion section 32, and when the bobbin 4i with a misfeed arrives at the extraction section 31 or the insertion section 32, the bobbin extraction operation and mounting operation are performed. It does not perform, but it has constituted so that it may send to supply way 5 as it is.

A solenoid 13 is provided at a position on the bypass path 11 slightly upstream from a location where the bypass path 11 joins the return path 6. A solenoid ( bobbin supply device) 14 is provided at a position slightly upstream of the return path 6 where it joins the bypass path 11. The solenoids 13 and 14 are controlled by the control unit 25, and are configured to cut out bobbins (4i or 4 ') one by one at an appropriate interval and supply them to the extraction unit 31 on the downstream side.

  In the return path 6, a counting sensor 15 is provided at a position upstream from the location where the bypass path 11 is joined. The counting sensor 15 is electrically connected to the control unit 25 and transmits a bobbin passage signal to the control unit 25 every time the empty bobbin 4 ′ passes through the part of the counting sensor 15.

  Here, the control unit 25 includes appropriate timer means (not shown), and counts how many times the bobbin passage signal from the counting sensor 15 is generated within a predetermined time (for example, 1 minute). Then, according to the count value, a signal is sent to the mouth opening control device 18 of the mouth outlet 7 to change the processing speed of the mouth outlet 7. Specifically, if the bobbin passing signal is less than 10 times per minute, the processing speed of the mouth portion 7 is reduced (20 per minute), and the bobbin passing signal is 10 times or more and less than 20 times per minute. If the processing speed of the mouth part 7 is set to medium speed (30 per minute) and the bobbin passing signal is generated 20 times or more per minute, the processing speed of the mouth part 7 is set to high speed (40 per minute). To do. Further, the cutting speed of the solenoid 14 is increased. In other words, the time interval for sending the empty bobbin 4 'downstream is shortened.

  As described above, when the number of detections of the empty bobbin 4 ′ per predetermined time of the counting sensor 15 is increased, the processing is performed so that the processing speed of the mouth portion 7 is increased. When a large number of bottles are discharged, the operation of the automatic winder 1 is reduced due to insufficient supply of the bobbin 4 to the automatic winder 1 by increasing the number of supplies to the automatic winder 1 by increasing the extraction process of the bobbin 4 in the extraction unit 7. Can be avoided. Further, when the empty bobbin 4 'is discharged from the automatic winder 1 little, the extraction process of the bobbin 4 by the extraction unit 7 can be made low speed to reduce the extraction error rate and extend the life of each device of the extraction unit 7. it can.

  For the bobbin 4i in which the yarn end is caught in the yarn layer, there is a high probability of making a mistake even if the extraction unit 7 performs the extraction process many times. Therefore, the bypass path 11 → the return path 6 → the supply path 5 In many cases, the circuit travels around the circulation path such as bypass path 11 → return path 6 → supply path 5 →. In a factory or the like where automation has progressed, there are few opportunities to remove such yarn end abnormalities manually, and there may be cases where a large number of bobbins 4i with misfeeds accumulate in the circulation path as described above.

  In this respect, the counting sensor 15 of the present embodiment is provided on the upstream side of the place where the return path 6 joins the bypass path 11, so that the counting sensor 15 detects the discharge from the automatic winder 1. Only the empty bobbin 4 ′, and the bobbin 4 i with a misfeed returned from the bypass path 11 is not detected by the counting sensor 15. Therefore, even if the bobbin 4i that has been mistaken by the dispensing unit 7 is repeatedly circulated in the bypass path 11, the return path 6, and the supply path 5, the empty bobbin from the automatic winder 1 is retained. If the return number of 4 ′ is small, the extraction unit 7 performs low-speed processing. Accordingly, it is possible to increase the probability that the bobbin 4i having an abnormal yarn end is subjected to low-speed processing (with a high extraction success rate) at the outlet 7 to recover from the abnormal yarn end and supply it to the automatic winder 1 side.

  Further, in the above embodiment, since the number of returned bobbins 4 ′ from the automatic winder 1 is small, it is possible to prevent the mouth portion 7 from performing high speed processing. Therefore, it is possible to reduce wear and fatigue of each component of the apparatus for the purpose. Therefore, the life of each component is extended, and the frequency of maintenance can be reduced.

Further, when the number of empty bobbins 4 ′ detected per predetermined time by the counting sensor 15 increases, the control unit 25 performs control so that the time interval for cutting out the empty bobbin 4 ′ by the solenoid 14 is narrowed, whereby the extraction unit 3. The number of empty bobbins 4 ′ supplied to 1 is increased per unit time so that the processing speed of bobbin extraction / mounting by the extraction unit 31 and insertion unit 32 is increased. As a result, the processing speed of the extraction unit 31 and the insertion unit 32 is increased along with the processing speed of the outlet unit 7, so that the supply capacity of the bobbin 4 to the automatic winder 1 side can be appropriately increased, and the bobbin supply A reduction in the operating rate of the automatic winder 1 due to the shortage can be effectively avoided. Further, the control for that is also a simple control that shortens the switching time interval of the solenoid 14, so that the load on the control unit 25 side can be reduced, and the electrical configuration of the control unit 25 can be simplified.

  The processing speed of the outlet 7 is a low-speed / medium-speed / high-speed three-step switching method, but it may be a two-step switching method or a multi-step switching method of four or more steps. Further, the number of detections per minute by the counting sensor and the control of the extraction unit 7 to the high-speed processing side may be appropriately determined in consideration of various circumstances such as the normal processing capability of the extraction unit 7.

The schematic plan view which showed the whole structure of the bobbin preparation apparatus which concerns on one Embodiment of this invention.

Explanation of symbols

1 Automatic winder 2 Bobbin preparation device 4 Bobbin, actual bobbin 4 'Empty bobbin (return bobbin)
4i Bobbin that missed out 5 Supply path 6 Return path 7 Outlet section 11 Bypass path 14 Solenoid (cutout device)
15 Counting sensor (sensor)
25 Control part 31 Extraction part 32 Insertion part

Claims (3)

A supply path for transporting the bobbin in a state of being placed on the tray to the automatic winder;
A return path for returning the bobbin discharged from the automatic winder;
An outlet portion that is provided in the supply path so as to perform the outlet processing of the bobbin, and whose outlet processing speed can be changed,
A bypass path for returning the returned bobbin to the return path, which is provided so as to branch from the supply path and join the return path;
In the return path, a sensor that is provided on the upstream side in the bobbin conveyance direction from the junction with the bypass path, and that detects the passage of the return bobbin,
When the number of bobbins detected per predetermined time by the sensor increases, a control unit that controls the processing speed of the extraction unit to be on the high speed side; and
A bobbin preparation device for an automatic winder. A bobbin preparation device for an automatic winder according to claim 1,
An extraction part for extracting the empty bobbin of the return path from the tray, and an insertion part for mounting the bobbin in a state where the yarn is wound on the tray,
When the number of bobbins detected per predetermined time by the sensor increases, the control unit controls the processing speed of the extraction unit to be on the high speed side, and the processing speed of the extraction unit and the insertion unit is also high. A bobbin preparation device for an automatic winder, characterized by being controlled to become. A bobbin preparation device for an automatic winder according to claim 2,
Further comprising a bobbin supply device for supplying one by one before Symbol extraction unit bobbins from said feedback path,
When the number of bobbins detected per predetermined time by the sensor is increased, the control unit controls the bobbin supply device so that the supply speed of the bobbin supply device is increased, whereby the extraction unit and the bobbin transport than the extraction unit A bobbin preparation device for an automatic winder, characterized in that the processing speed of the insertion portion located on the downstream side in the direction is increased.

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