JPH08654B2 - Mixed number prevention device - Google Patents

Description

Description: [Industrial field of use] The present invention relates to a mixed-number preventing device in a yarn thread conveying system for a winder.

[Prior Art] Generally, a tubular yarn obtained by winding a yarn spun by a spinning machine is rewound into a package having a size and shape suitable for removing a yarn defect portion or for a post-process. The automatic winder used in this rewinding process has a single winder configured by arranging winding units of multiple weights side by side. The yarn drawn at high speed from the tubular yarn supplied to each unit is rotated by a drive drum. When the yarn of one tubular yarn is used up, the next tubular yarn is newly supplied to perform yarn knotting, and the yarn is wound again.

In this way, a plurality of yarns are supplied to obtain one full winding package. Therefore, if one spinning unit of the winder corresponds to 50 to 60 spinning units of the spinning machine, the spinning process and the rewinding process can be efficiently operated as a whole.

Under the above-mentioned relationship, when performing high-mix low-volume production, the conventional system produces different kinds of yarn for each spinning machine, and rewinds the yarn with one winder. Therefore, for example, if 6 kinds of yarns are produced by 400 spindles with 5 spinning machines and are rewound by 5 winders, the number of spindles in one winder winding unit is about 12, and each winder Since it is necessary to install a drive source, a blower, etc., it is extremely uneconomical, and it is also disadvantageous in space depending on the arrangement of the winder.

In order to solve the above problems, there is a system disclosed in JP-A-59-17464. That is, a winder having a large number of winding units is substantially divided into a plurality of sections, one section of which is fed with a kind of yarn produced by a spinning machine and wound, and another section of which is different. In addition to supplying a kind of yarn produced by a spinning machine, a yarn supplying path and an empty bobbin return path are provided between each section and the spinning machine to form a closed loop, and different types of yarn are wound in the same winding. It is an automatic yarn transfer system that prevents it from being supplied to the take-up unit.

In such a system, it is important that each winding unit can automatically supply the same type of winding yarn to the same winding unit without error, without providing each winding unit with a yarn storage magazine. .

In this regard, paying attention to a tray that conveys the yarn through the spinning machine and the winder, and by attaching an identification mark indicating the type of the yarn on the outer peripheral surface of the disc-shaped substrate, On the basis of specifying the spinning machine in which the yarn of No. 1 was produced, a sensor for reading the identification mark on the entrance side of the branch path between the main supply path and the winding section and a tube thread selector for controlling the incorporation into the branch path are provided. On the other hand, it is known that a sensor for reading the identification mark and a bobbin selector are provided on the branch entrance side of the branch return path between the return path and the spinning machine (Japanese Utility Model Publication No. 62-18604).

[Problems to be Solved by the Invention] However, when the identification mark of the tray is simply read by the sensor as in the above method, the combination of the tray and the bobbin is correct, but a different type of yarn is mixed due to malfunction of the yarn selector. It is not possible to detect a case where a yarn of a different type has been conveyed on a correct tray because the bobbin for the winding section tray is incorrectly combined. For this reason, there is a problem in that if even one yarn of another yarn type is wound in the winding section during winding, the wound package becomes a defective package.

It is impossible to visually detect the inclusion in the package wound up in this way, and therefore it is possible to detect the inclusion of different kinds of yarn only by finding a defect portion which appears in the cloth woven using the yarn of this package. To be discovered. For this reason, conventionally, bobbins of different colors are used for the bobbin of the tube yarn depending on the yarn count to prevent mixed numbers.

However, if the tray and the bobbin are combined incorrectly as described above, the yarns of different types are mixed in the package, and all the doffed packages become defective products or are not extracted as defective products. In this case, the subsequent knitting process will be adversely affected.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a mixed number prevention device for identifying colors of color bobbins to prevent mixed numbers.

[Means for Solving the Problems] In the mixed number preventing apparatus of the present invention, a plurality of winding units constituting a winder are divided into winding sections for each type of yarn, and a tubular yarn for each type of yarn is fed from a common main transport line. In a tube yarn transport system for branching and supplying to a delivery path dedicated to each winding section, a bobbin discrimination sensor for detecting the yarn type of the above-mentioned branched and fed thread is provided in the middle of the delivery path dedicated to each winding section. Provided with a judging means for emitting a signal when the yarn type detected by the bobbin discrimination sensor is different from the yarn type handled by the winding section, and at least driving the delivery path of the winding section by the signal from the determining means. It is configured by providing a means for stopping and further providing a means for instructing the yarn splicing prohibition after the operation of the delivery path is stopped.

[Operation] In each winding section, each bobbin discrimination sensor detects the yarn type of the tubular yarn supplied in a branched manner. When the detected yarn type is different from the yarn type handled by the winding section, a signal is generated from the determining means. The operation of at least the delivery path of the winding section is stopped by this signal. Furthermore, after the operation of the delivery route is stopped, the yarn splicing prohibition is instructed.

For this reason, if a different type of yarn for the winding section is carried on a tray that is correct for the winding section, or if the wrong yarn for the winding section is wrong for the winding section. Since the operation of the delivery path is stopped in any case where it is carried on a certain tray, the mixed yarn can be removed from the tray. Therefore, it is possible to prevent an accident in which a different type of yarn in the package is mixed and wound up. In addition, since the yarn splicing prohibition is instructed after the operation of the delivery path is stopped, the operation of the yarn splicing failure due to the loss of the tubular yarn is not repeated.

[Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings when it is used in a system for supplying and conveying various types of yarns to a peg tray.

1 and 2, the automatic winder W is configured by arranging a large number of winding units 1 (FIG. 3) in parallel, and in the case of this embodiment, it is substantially divided into five winding sections SC1 to SC5. Will be divided.

The supply of the yarn to the winder W and the carry-out of the empty bobbin and the like are performed by the closed-loop main transfer line 2. Both ends of the main transport line 2 are connected to a yarn supplying path 3 to the winder W and a bobbin returning path 5, and the yarn supplying path 3 is a circulation dedicated to each winding section SC1 to SC5 via branch supply paths 3a to 3e. It is connected to the delivery path 4.

As shown in FIG. 3, the branch line 3a from the yarn supplying path 3
A gate 7 is provided at each branch point to 3e, and the entrance to the branch lines 3a to 3e is opened and closed by the tray sensor 6 provided immediately before. Further, the position sensor 8 is provided in the middle of the circulation delivery path 4 in each winding section SC1 to SC5.
A mixed-number detector including a bobbin color sensor 9 is provided.

Along the main transport line 2, a bobbin processing zone 10, a yarn delivery zone 11 and a yarn end device 12 for yarn delivery are arranged in this order in the transport direction of a transport medium (hereinafter referred to as tray).

The bobbin processing zone 10, the bobbin processing device 13, 14, 15
Is installed in the middle of the main transport line 2. The bobbin processing device 13 is a type that can select an empty bobbin and a bobbin with a minimal residual thread from the two types of bobbins a and b, and the device 14 similarly processes other types of bobbins c and d.
The device 15 is for selecting an empty bobbin of the remaining one type of bobbin and a bobbin with a minimal residual thread.

Furthermore, in the above-mentioned yarn supplying zone 11, the number of branch lines 16 branching from the main conveying line 2 and joining again to the same conveying line 2 is provided by the same number as the number of kinds of yarn (5 kinds in this embodiment). . Pipe yarn supplying stations P1 to P5 are provided in the middle of the respective branch lines 16, the pipe yarn a is at station P1, the yarn yarn b is at station P2, the yarn yarn c is at station P3, and the yarn yarn is at station P4. d
However, at the station P5, the thread e is supplied and attached to the tray dedicated to each thread.

The tray for which the yarn supply has been completed in the zone 11 or the tray having the bobbins with residual yarn passed through is the main transport path 2
After being transferred in the direction of the arrow P, supplied to the common dispensing device 12 and subjected to the dispensing action, various kinds of yarns are conveyed in a random order on the line 2 toward the winder W.

The yarns b to e pass through the branch supply passage 3a, and the yarn d is a branch passage.
Each pipe yarn is supplied to a predetermined winding section to be wound, such as being transferred from 3d onto the delivery path 4 of the section SC4.

In each section, as shown in FIG. 4, the tray 18 of the yarn 17 which has moved through the yarn delivery path 4 is transferred onto the rotating disk 19 of the winding unit 1 and the waiting groove 21 from the yarn introduction port 20.
To reach the rewind position 22. In this way, the subsequent yarns enter the yarn waiting groove 21 in sequence, and when the waiting groove 21 is filled with a predetermined number of yarns, the yarns sent thereafter cannot enter the waiting groove, Goes from the surplus tube thread delivery port 23 to the next winding unit. In this way, the tray in which the tubing has been inserted is sequentially filled from the winding unit closest to the dispensing device 12, but when a vacancy occurs in the tubing standby groove 21, the vacancy is sequentially emptied from the nearest winding unit. It will be buried.

The tube yarn 17 at the rewinding position 22 sucks and holds the yarn end blown up by the relay pipe 24 standing by above it, swivels upward and introduces it into the yarn joining device, and is rotationally driven by the traverse drum 25. The yarn end on the package 26 side and the yarn end on the tube yarn 17 side are spliced, and rewinding is started.

When the yarn splicing fails, the yarn splicing operation is automatically started again. However, when the yarn splicing fails a predetermined number of times, for example, three times in succession, the yellow button 27 projects and the winding unit 1 stops its operation. . 28 is a start switch after doffing the package 26.

1 and 2, each winding section of the winder W
Each type of empty bobbin, bobbin with minimal residual thread, and bobbin with residual thread that are randomly discharged from SC1 to SC5 onto the bobbin return path 5 are transferred to the main transport line 2 and first along the line 2 In processing zone 10, the bobbin with minimal residual thread and the empty bobbin are removed from the tray, and boxes B1 to B5
To be housed.

Therefore, among the various trays that have passed through the bobbin processing zone 10, only empty trays having no bobbin or trays having a bobbin with residual yarn that can be re-supplied to the winder are conveyed.

Next, when reaching the tubing supply zone 11, by the tray sorting device 29 provided on the entrance side of each branch runin 16, according to the height position of the annular groove provided on the tray peripheral surface, each station P1
~ Tray of the type belonging to P5 is taken into the branch line 16,
Transferred to the yarn supplying stations P1 to P5. When reaching a predetermined position of the station, the tray is stopped by a stopper (not shown), and after confirming the presence of the tray and the absence of a bobbin on the tray by a sensor, the yarn feeding devices of stations P1 to P5 make one cycle. As a result, the new yarn on the conveyor located above is fed and loaded onto the empty tray. When the bobbin thread is inserted, the upper bobbin non-confirmation sensor has a bobbin, the stopper is released, and the tray in which the predetermined tube thread is inserted is further moved on the branch line 16 along the line k in FIG.
Is transferred in the direction, joins the main transfer line 2, and is transferred on the line 2 toward the yarn ejection device 12. When there is a bobbin with residual yarn on the tray that has reached the above-mentioned yarn delivery stations P1 to P5, it passes without receiving the yarn supply and goes to the dispensing device.

In this way, the tray in which the tube thread is inserted is transported on the transport path 2 and is supplied to the dispensing device 12, and the yarn end is dispensed.
The tube yarn is suspended from the upper end of the core tube into the core tube and conveyed toward the winder W.

In the winder W, various trays that are randomly transported on the main supply line 2 in FIG. 1 branch to the closed loop yarn delivery path 4 in each winding section SC1 to SC5.
Transferred via 3a-3e. A tray sensor 6 composed of a magnetic code and a proximity switch, or a reflector code and an optical sensor is provided on the entrance side of the branch paths 3a to 3e. Are automatically classified and supplied to a specific winding section according to the opening / closing of the gate 7.

Next, FIG. 5 shows a configuration example of the tray sensor 6, the position sensor 8 and the bobbin color sensor 9.

In Fig. 1, a tubular thread obtained by winding a thread on a color bibon 30
The lower end 17 is inserted into a tray 18 and held in an upright state, and is conveyed to the winder W by the tray 18. Tray 18
In the example shown in FIG. 5, the tray sensor 6 for identifying the type of the yarn and the type of the yarn 17 is an identification mark composed of a plurality of iron rings 32, 33 provided on the peripheral surface of the disk-shaped base 31 of the tray 18. The proximity switches 34 and 35 for detecting
The position sensor 8 for obtaining the passing bobbin position, that is, the mixed number identification timing, is composed of a light emitter 8a and a light receiver 8b,
The light path is shielded by the upper portion of the bobbin 30 to detect the bobbin. The bobbin color sensor 9 for identifying the type of color of the bobbin 30, and thus the yarn count of the tube thread 17, is specifically a projector 36 that irradiates the upper peripheral surface of the bobbin 2 with light.
And a light receiver 37 for receiving the reflected light, and an electric circuit portion (see FIG. 7) for receiving the signal from the light receiver 37 and identifying the color of the bobbin.

The position sensor 8 and the bobbin color sensor 9 forming the mixed number detector operate as follows. When the tube thread 17 circulating in the circulation delivery path 4 reaches the position of the mixed number detector, the optical path of the position sensor 8 is shielded by the side of the bobbin 30 of the tube thread 17, and the bobbin color sensor 9 at this time. The position is exactly where you can see the diameter line of the color bobbin 30. At this point, the color of the bobbin 30 is read by the bobbin color sensor 9, and whether or not the color should belong to the winding section SC1 to SC5 indicates whether the color is proper or not and the mixed number detection circuit (see FIG. 8). It is determined by the determination circuit 51). That is, the color to be detected by each bobbin color sensor 9 is determined by each winding section SC1.
~ SC5 is predetermined for each, when a color bobbin 30 of a color different from that color is detected, it means that the yarn to go to each other winding section is erroneously mixed, that is, it is a mixed number. To be judged.

As shown in FIG. 6, when a mixed number is detected by the bobbin color sensor 9, a mixed number detection signal to that effect is output.
Then, the operation of the feeding device 12 is stopped. This is because the transport system of the dispensing device 12 is carried out by rotating an independent disc, so that the supply of new yarn from the dispensing device 12 is stopped, and clogging of the yarn on the transport line 2 is stopped. This is to prevent it.

The output device 12 stops the above operation when receiving the mixed number detection signal, while turning on an alarm lamp provided in itself or provided in the fixed length device, for example, a product name patrol light, the trouble number, that is, Displays the name of the winding section where a mixed number is detected. Upon receiving the mixed number detection signal, the output device 12 sends a signal to the main body of the constant length device of the winder W in addition to the above-mentioned operation, so that the entire conveying system of the winder W, that is, the conveying line 2, the yarn supplying path. 3. A series of transportation systems including the circulation delivery path 4 are stopped. However, this is because the conveyor is laid all the way through the winder, so the transport system of the entire winder is stopped, and if a conveyor is provided for each winding section SC1 to SC5 independently, the It is also possible to independently stop the conveyor of the winding section to which the bobbin color sensor 9 having detected the turn number belongs.

According to the above control, the operator finds the yarn of the color bobbin of the different color mixed in the circulation delivery path 4 of the instructed winding section from the yarns of the stopped transportation system, and removes this from the tray 18. It is removed and removed, and then the reset button provided on the color sensor unit is pressed. As a result, the alarm lamp is turned off, the trouble number display is cleared, and the operation of the stopped transportation system is restarted.

By the way, since the winding continues even if the conveyor is stopped, if the operator does not process for a long time, the yarn 17 is lost in the winding unit 1, and the operation of failure of the yarn splicing is repeated, and the yellowing occurs at the third time. The button 27 projects and the thread splicing impossible display state is displayed. Therefore, if the yellow button projects on many winding units, the operator must push the yellow button for each winding unit to re-disclose the operation. Therefore, when the operation of the transport system is not restarted even after a predetermined set time has elapsed after stopping the transport system, it is necessary to give a yarn splice prohibition command to prevent the winder from splicing yarn. is there.

FIG. 7 shows the feeding device 12 in the main transfer line 2.
In this example, a mixed-number detector including a tray sensor 6, a position sensor 8 and a bobbin color sensor 9 is arranged on the upstream side of.
This mixed-number detector detects whether or not the combination of the color of the tray 18 and the color of the color bobbin 30 in the main transport line 2 is appropriate, and determines the type of thread attached to the tray 18 and the thread type of the color of the color bobbin 30. If it is different, it is judged as a mixed number, the transport system of the entire winder is stopped in the same manner as above, and the yarns 17 having different combinations of the tray 18 and the color bobbin 30 are eliminated. This allows all winding sections SC1 to SC5
Mixed numbers are prevented in advance and commonly.

However, the mixed number detector only detects the suitability of the combination of the tray 18 and the color of the color bobbin 30, and cannot determine whether or not the tray is correctly taken into the predetermined winding section SC1 to SC5. . That is, depending on how the gate 7 is operated, there is a risk that different kinds of yarn 17 will be taken into the forward delivery path 4. Therefore, even in this case, it is necessary to arrange the mixed number detector for detecting the color of the color bobbin 30 in the circulation delivery path 4.

FIG. 8 shows an electric circuit portion of the bobbin color sensor 9.

In FIG. 8, the reflected light from the color bobbin 30 is decomposed into three primary colors of red, blue, and green by the three light receiving elements 38 of the light receiver 37, and the hue components R ₀ , B of red, blue, green are passed through an amplifier.
_The luminance component S ₀ is extracted from the adder 39 as the sum of ₀ and G ₀ . The hue components R ₀ , B ₀ , G ₀ and the luminance component S ₀ are all analog signals and are input to the comparator 40 which is independent of each other.

Each comparator 40 compares these input signals R ₀ , B ₀ , G ₀ with preset values set by the level setter 41, and the input signals R ₀ , B ₀ , G ₀ , S ₀ are When the value is larger than the set value, the color information signal “with color component” is output at R level, B level, G level, and S level.
Further, an inverter 42 is connected to each comparator 40, and a color information signal “without color component”, which is the inversion of the color information signals R, B, G, S, is output from each inverter 42. It

The color information signals R, B, G of “with color components” for the hue components of red, blue, and green are output because the color of the color bobbin 30 has a reddish, bluish, or greenish tint above the set value. In the case of a tinged color, and the color information signal S of "color component present" for the luminance component is output, the entire color of the color bobbin 2 is a tone having a tone brighter than a set value, for example, "pink"
This is the case for colors such as "bright green" and "pale blue". The color information signal of "no color component" is output when each color component of red, blue, green, and luminance is not included in the color of the color bobbin 2 to a certain level. . The rising edge of one of the color information signals R, B, G, S with "color component" is the color information signal with "no color component",
,,, can be used as an identification timing for detecting.

The reference numeral 43 is used to determine whether the two colors of the color bobbin, that is, the type of the thread, is correct for the winder unit.
Eight color information signals R, B, G, S, ...
This is a color information sorting circuit that determines which color information of ,,, or is selected and combined for determination processing. 44 is a color system for selecting or combining the four systems in the color information sorting circuit 43, a total of eight color information signals R, B, G, S, ..., That is, a color system for designating a color system to be used for identification. It is a designated circuit, and is provided with independent color system designation switches 45 corresponding to the four systems of red, blue, green, and luminance. From the respective color system designation switches 45, designation signals r, b, g, s for designating “with color components” of red, blue, green and luminance are taken out at H level.
In addition, an inverter 46 is connected to the color system designation switch 45, and the designation signals r, b, g, s are sent from each inverter.
Designated signals for designating "no color component" of red, blue, green, and luminance, which are inverted, are output at H level.

When one of the color system designation switches 45, for example, the R color system designation switch is turned on and red is designated, the AND gate 47 belonging to the designated red system is opened by the designation signal. At this time, the designation signal remains at the L level, so the AND gate 48 is in the closed state. Then, for the remaining color system designating switches 45 that have not been turned on, the group of AND gates 47 is closed and the group of AND gates 48 is designated signal ,.
It will be opened by. That is, of the eight color information signals R, B, G, S, ... Of the four systems, four color information signals of the four systems are extracted. this is,
As a color for identifying the color bobbin 2 to be inspected, it is ascribed to the "red system" color having the hue of red and not having the color information of blue, green and luminance specified by the color system specifying circuit 44. . Increase the number of color system specification switches 22 to operate,
For example, when the color system specification switches 22 and 23 are turned on and red and blue are specified, four systems of four color information signals R, B, are taken out, have red and blue hues, and have green and brightness. You can specify a "purple color" that has no color information. Similarly, various color systems can be designated.

Reference numeral 49 denotes a color information exclusion designating circuit for excluding a color information signal of a color system that is not desired to be used from the four color information signals of four systems extracted from the color information discarding circuit 43 in this way. The exclusion switch 50 is provided manually for each system of blue, green, and brightness. For example, the color information sorting circuit 43
The four color information signals of four lines extracted from
In the case of four R, ..., When only the three right side exclusion switches 50 are turned ON, the three color information signals of blue, green, and luminance are removed and ignored from the judgment element, and the left end which is not turned ON. Only the red color information signal R remains as an effective processing signal for the elimination switch 50, and pure "red color" color designation as to whether or not it has a red hue can be performed.

Reference numeral 51 is a determination circuit for identifying whether or not the color bobbin 2 is of the correct color, and the color information signals of four systems taken out from the color information discarding circuit 20 or the color information exclusion designation circuit from which the color information signals are removed. The color information signals of the 3 to 1 system are received as the color information to be finally subjected to the determination processing, and the color bobbin 2 is received based on the color information signals of the 4 to 1 system.
Identify if is of the correct color.

 Next, the operation will be described with reference to FIG. 3 as an example.

For convenience of explanation, two types of "red" and "purple" are used for the color bobbin 2. The red bobbin is 14th and the purple bobbin is 16
It is assumed that a count yarn is wound and both color bobbins 2 are supplied to the circulation delivery path 4 of different winding units SC1 and SC2. In such a case, in order to discriminate whether or not the color bobbin 30 is a correct color bobbin by the winding units SC1 and SC2, the two colors of “red” and “purple” of the color bobbin 30 are selected. It is necessary to distinguish them. However, the problem here is that since red and purple include red as a common hue, it is possible to accurately determine whether the color bobbins 2 are right or wrong by distinguishing the presence or absence of the red color component. Is something that cannot be done. Therefore,
The color component of “blue” which is included in the “purple” of one color bobbin 2 but not included in the “red” of the other color bobbin 2 determines the correctness of the color bobbin 2. Use as a scale.

First, regarding the first winding unit SC1 that handles a red bobbin (14th thread), it is detected that the "blue" color component does not reach a certain level, and therefore a color information signal is generated. , Is a condition for determining that the color bobbin is correct. However, since the output of the inverter 42 is at the H level even if the color bobbin 30 is not yet in the position of the bobbin color sensor 9 and the color information signal is generated, whether the above condition is correct or not is determined at an appropriate time. The second condition is required as the identification timing to perform. The second condition is satisfied when the position sensor 8 provided separately detects that the color bobbin 30 has come to the position of the bobbin color sensor 9. However, since the luminance information signal S is used and the luminance information signal S is generated, the color bobbin
It can also be determined that 30 has come to the position of the bobbin color sensor 9.

Therefore, by turning on the color system designation switch 45 for the luminance S in the color system designation circuit 44, the color information signal S indicating that there is a color component of luminance is designated. Further, by keeping the blue B color system designation switch 45 in the OFF state, the color information signal indicating that there is no blue color component is designated by the designation signal. Then, the red system and green system exclusion switches 50 of the color information exclusion designation circuit 49 are turned on, and the red and green system input terminals in the 4-input AND gate 52 of the determination circuit 51 are always kept at the H level. The color information signal R of and the color information signal G of the green system are excluded from the determination factors of the determination.

By setting in this way, the determination circuit 51
The AND gate 52 outputs an H level output from the color bobbin 2 only when the color information signals S and are simultaneously input, that is, only when the red bobbin wound with the 14th thread arrives. Can be treated as a detection signal indicating that is correct. If a purple bobbin in which the 16th yarn is wound is accidentally received, the comparator 40 outputs the blue color information signal B and the color information signal which is the inverted signal thereof disappears. Is no longer established, and its output becomes L level.

The L level output of the AND gate 52 is handled as a conveyor stop signal of the main transfer line 2 for the purpose of removing the color bobbin 30 from the transfer system by the operator.

Next, regarding the second winding unit SC2 handling the 16th yarn (purple bobbin), it is detected that the "blue" color component is at a certain level, that is, the generation of the color information signal B. Doing is a criterion for determining that the color bobbin is correct. The second condition relating to the identification timing handled by the first winding unit SC1 described above, that is, the condition that the color bobbin 30 is at the position of the bobbin color sensor 9 is a condition for determining that the color bobbin is correct. Is not always necessary, but it is necessary to judge that it is an incorrect color bobbin.

Therefore, the second winding unit is set as follows.

First, the blue color system designation switch 45 (B) is turned on, and the color information signal B indicating that there is a blue color component is designated by the designation signal b. Also, turn on the brightness color system specification switch 45 (S).
Then, the color information signal S indicating that there is a luminance color component is designated by the designation signal s. Further, the exclusion switch 50 (red, green) of the color information exclusion designating circuit 50 is selectively turned on to keep the inputs of the red and green systems of the determination circuit 51 at the H level at all times, and the color information of the red and green systems is obtained. The signals, R, and G are excluded from the judgment factors of judgment.

By setting in this way, the AN of the judgment circuit 51
The output terminal of the D gate 52 becomes the H level only when the color information signals S and B are simultaneously input, that is, only when the purple bobbin wound with the 16th thread is arrived. If by mistake
When the 14th red bobbin comes, the blue color information signal B disappears in the comparator 40 (B), and the output of the AND gate 52 becomes L level. Therefore, when the output of the AND gate 52 is the H level, it is the correct 16th purple bobbin and therefore it is passed. On the other hand, when it is the L level, it is the 14th red bobbin that was sent by mistake. The main transfer line 2 is stopped in order to discharge this from the transfer system.

In the above, red and purple bobbins are taken as an example, but the method of identifying color bobbins of arbitrary colors having the same hue component is also the same, and among the color components of red, blue, green, and luminance, the identification is By using an easy color component as the identification color, both color bobbins can be distinguished and detected without error. The color components that should be used as the identification colors and are easy to identify are mostly the hue components that are not common to both color bobbins as seen in the above example, but the luminance color such as white and black In some cases, it may be easier to identify using the components, and thus the luminance color component is also included in the easy-to-identify color components that should be used as identification colors. In any case, by using a color component that is different from the actual color of the bobbin and is easy to identify as the identification color, even bobbin colors of the same color system can be distinguished and detected without error.

[Effects of the Invention] As described above, according to the present invention, when it is detected by the bobbin discrimination sensor that the yarn type handled by the winding section is different, the operation of the delivery path of the winding section is stopped. Therefore, the mixed thread can be removed by the operator. Therefore, it is possible to prevent an accident in which the yarn of another type is mixed in the package and is wound up.

[Brief description of drawings]

FIG. 1 is a plan layout view showing an example of a system including a mixed-number preventing device of the present invention, and FIG. 2 is a perspective view of the system.
FIG. 3 is a partially enlarged plan view showing the conveying system in the winder portion, FIG. 4 is a perspective view of the winding unit portion, and FIG. 5 is a diagram showing an example of arrangement configuration of a tray sensor, a position sensor, and a bobbin color sensor. FIG. 6 is a schematic diagram showing a control procedure of the mixed-number preventing device of the present invention, FIG. 7 is a schematic diagram showing a modified example of a system having the mixed-number preventing device, and FIG. 8 is a configuration of an electric circuit portion of a bobbin color sensor. It is a figure which shows an example. In the figure, 1 is a winding unit, 2 is a main transport path, 3 is a yarn supply path, 3a to 3e are branch supply paths, 4 is a circulation transfer path, 5 is a bobbin return path, 6 is a tray sensor, and 7 is a gate. , 8 is a position sensor, 9 is a bobbin color sensor, 17 is a pipe thread, 18 is a tray, 26 is a package, 27 is a yellow button, 43 is a color information discard circuit, 44 is a color system designation circuit, and 45 is a color system designation switch. , 49
Is a color information exclusion designation circuit, and 51 is a determination circuit.

Claims (1)

[Claims] 1. A plurality of winding units constituting a winder are divided into winding sections for each type of yarn, and a tubing yarn for each type of yarn is branched and supplied from a common main transport line to a delivery path dedicated to each winding section. In the tube yarn transport system, a bobbin discrimination sensor for detecting the yarn type of the branched and fed tube yarn is provided in the middle of the delivery path dedicated to each winding section, and the yarn type detected by the bobbin discrimination sensor is Provided is a judging means for issuing a signal when the yarn type handled by the winding section is different, and at least means for stopping the operation of the delivery path of the winding section in response to the signal from the judging means, and further stopping the operation of the delivery path. A mixed number preventing device, characterized in that it is provided with means for instructing the prohibition of yarn splicing.