JPH06329339A - Method of forming thread connection by splicing - Google Patents

Abstract

PURPOSE: To rationalize a yarn connecting process by restraining splicing air from being released, if the necessary conditions for success of the splicing operation are not set at the releasing time of splicing air in a step system connected in one connecting cycle. CONSTITUTION: A compressed air conductor 45' is branched from a compressed air conductor 53" for supplying pressure to all package winding parts and connected to a splicer 26 via a valve 45 and a compressed air conductor 26", and the valve 45 is controlled by a driving device 44. The valve 45 is connected to a package winding part computer 42 by a control line 45'''. When a splicing air release signal is output from the control line 45''', if the necessary conditions for success of the splicing operation, namely, the conditions of the detection of absence of the yarn end on the winding bobbin side or the rewinding bobbin side, the detection of deviation in compressed air pressure values of a pressure monitor meter 50, and the detection of deviation of air values in suction air of a pressure monitor meter 54 are not satisfied, the releasing operation is restrained via the control line 45'''.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a splicing device in which the drive of the yarn joining device makes one closed movement course for a series of time-joined steps during one yarn joining cycle. The present invention relates to a method for forming a thread connecting portion by means of.

[0002]

2. Description of the Related Art Modern automatic winders (rewinders), in which a large number of package winding parts are arranged in parallel with each other, generally have one yarn binding device for each package winding part. In contrast to the knotting method previously used, thread joining is nowadays almost exclusively carried out by splicing the yarn ends. In this type of yarn joining process, one temporally joined step sequence has to be realized, the step sequence beginning with the search for both yarn ends to be joined together and shortening both yarn ends. , Splicing preparation and insertion into the splicing head, and then the actual thread connection with the splicing air, to the resetting of the starting position to start the package winding anew. The above-mentioned sequence of steps, which covers the whole thread binding cycle, is usually realized by a common drive for this purpose, which carries out one closed movement course. At the end of such a thread-bonding cycle, all components of the thread-bonding device involved in the thread-bonding operation are in their starting or zero position.

Means for inspecting the presence or absence of both yarn ends during the course of one yarn joining cycle have also become known and are quite widespread. For this inspection, a yarn cleaner is used, which is provided in each winding part of the package, and the ends of both yarns are inserted into the yarn cleaner one after another for inspection. . If it is determined that the yarn on the winding bobbin side is absent at this time, an adjustable number of yarn binding cycle operations are carried out in the meantime without restarting the winding process. After reaching a predetermined number of thread-bonding cycles, a fault signal is emitted, on the basis of which the operator knows that the package winding needs maintenance. When the yarn end on the rewind bobbin side is absent, rewind bobbin replacement, that is, cup replacement is performed. This is because the absence of the yarn end in this case is considered to have already completed the unwinding of the unwinding bobbin.

A method of forming a thread connection of this type is disclosed, for example, in DE 38 24 837 A1 or in DE 39 37 824 A1 which forms a superordinate concept of the invention. In this case, one of the important differences between the techniques described in both publications is that, unlike the former technique, in the latter technique, the yarn on the rewind bobbin side before splicing is used. The fact is that the presence or absence of the ends can be inspected and therefore the rewind bobbins can be replaced in the same thread-bonding cycle. The point common to all the above-mentioned known methods is that in order to repeat a predetermined step, first, the thread binding cycle in progress is terminated and the thread binding cycle in progress is terminated, and then the thread binding cycle is ended again in the next thread binding cycle. It is necessary to be able to lead well to. In this case as well, or in another case where the conditions necessary for successful splicing operation are not provided, splicing bond may not occur or splicing bond defect may occur.
Moreover, nevertheless, a total energy demand for one normal thread-bonding process must be fully consumed for one thread-bonding cycle of this type.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to improve the method for forming a thread connecting portion so that the thread connecting step can be carried out more rationally.

[0006]

[Means for Solving the Problems] According to the constituent means of the present invention for solving the above-mentioned problems, the conditions necessary for the success of the splicing operation at the time of releasing the splicing air in the time series connected step sequence. If is not given, it is to prevent the release of splicing air.

[0007]

By means of the method according to the invention, splicing air as well as energy are completely saved in the case of a thread-bonding cycle in which a positive splicing result cannot be produced. Furthermore, by being able to recognize in advance the failure of the splicing connection operation, the current compressed air costs are not adversely affected.
This is especially relevant if a certain number of package windings require splicing air at the same time. In this case, the invention prevents the possible disadvantages of falling below the lower limit of the air pressure required for splicing.

Advantageous embodiments of the invention are obtained by the measures according to claims 2-7.

If the yarn on the winding bobbin side is absent, the splicing air savings are repeated in the package winding, depending on the number of yarn joining attempts.

As in the case of the technique described in DE-A 39 37 824, which forms the general idea of the invention, the presence or absence of yarn on the unwinding bobbin side releases the splicing air. If it is inspected before the time point, the present invention can avoid unnecessary consumption of splicing air when the yarn on the rewind bobbin side is absent. However, in the case of the yarn on the unwinding bobbin side, if the first attempt to join the yarn fails, it is considered that the yarn storage amount of the unwinding bobbin is almost exhausted, and this is regarded as the starting point for the next operation. So, a cup change is inserted between the first and the next attempt, while the thread binding cycle is interrupted at this point. In this case, the inhibition of the splicing air is released by the detection of the absence of yarn after the rewinding bobbin has been replaced.

Unlike the present invention, if only the presence or absence of the yarn on the rewind bobbin side is checked in one yarn combining cycle, if the yarn on the rewind bobbin side is absent, Rewind bobbin (cup) during the next thread binding cycle
A change must be made, in which case the next thread-bonding cycle will also include the waiting time for a new rewind bobbin to be supplied and present. When the presence or absence of the yarn on the unwinding bobbin side is inspected before the splicing air is released as in the present invention, the release of the splicing air is suppressed even within this first yarn joining cycle.

In modern automatic winders, the pressure in the compressed air conduit feeding the package winding is monitored in the central control room, and if the pressure target value is exceeded, the start of a new thread binding operation is completely blocked. Although the means are commonly used, it is not possible to interrupt the thread-bonding operation that has already started. In this case, a low-strength splicing junction is produced. If such a splicing joint is not recognized, or is not recognized at all until a yarn break occurs at a later time, the winding bobbin or package is wound up with the low quality yarn segment, and at a later time. It is inevitable that thread breakage will occur during the post-processing process. In this case, if the supply of splicing air is suppressed, as in the present invention, no splicing will occur and the thread binding attempt must be repeated. Furthermore, in this case also, splicing air is saved in the yarn binding cycle.

When the splicer is constructed as a thermosplicer, if the temperature exceeds the specified temperature tolerance range, a state similar to the above occurs.

Saving splicing air as well as defibration air if splicing joints are or are not formed based on the lack of conditions necessary for successful splicing operation. You can This further improves the overall reduction in air consumption.

A further reduction in air consumption is also provided if the lack of one of the conditions for a successful splicing operation is confirmed before the release of suction air.
It will also result in saving suction air. In this case as well, it is possible to reduce the load on the winding bobbin when searching for the yarn start end portion on the winding bobbin (package) side.

[0016]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In an automatic winder (automatic yarn rewinding machine), a predetermined number of package winding units 1 are arranged in parallel with each other. Each package winding section 1 has a winding section frame 2 which supports all the constituent parts of the package winding section. Two conveyor belts 8 and 9 extend along the package winding portion. The conveyor belt 8 guides the unwinding bobbin, that is, the cup 4, which is vertically inserted into the caddy 3 to the region of the package winding portion.

The caddy 3 rests only partly on the conveyor belt during the conveyance by the conveyor belt 8. This is because the width of the conveyor belt 8 is narrower than the base plate of the caddy. The side guides 8 ′ arranged outside the conveyor belt 8 are
The base belt of the caddy 3 extends laterally at right angles to the conveyor belt 8 while it is carried on the conveyor belt 6 and is arranged for each package winding unit 1.
Guaranteed to enter the area.

The conveyor belt 6 is guided in the direction indicated by the arrow 7 by the deflection guide rollers 10 and 11. The conveyor belts 6 can be driven individually or in groups. However, it is also possible to take out the driving force of the conveyor belt 6 directly by either the conveyor belt 8 or 9 via, for example, a tension roller and a bevel gear.

When three caddies 3 are blocked on the conveyor belt 6 before the rewinding position and are in a state of being in a coin-deposited state, the caddy 3 placed on the conveyor belt 8 and guided is the conveyor belt 6. You cannot reach the top. This is because the caddy 3 slips past the base plate of the final caddy 3 in stagnation.
In the state shown in FIG. 1, the caddy 3 in which the cup 4 that has been guided by being placed on the conveyor belt 8 is inserted and caught by the conveyor belt 6 that circulates at a higher speed and enters the branch path of the package winding unit 1. Is brought in.

A blow cylinder 17 is arranged at the rewinding position, and the blow cylinder is composed of two half-split sleeves 18 in a vertically split manner. The two half sleeves 18 of the blow cylinder 17 can be retracted by the fluid cylinders 13 and 19 either one behind the other or at the same time from the region of the conveying path formed by the conveying belt 6. The fluid cylinders 13 and 19 are fixed on the abutments 12 and 20. After the rear half sleeve 18 of the blow cylinder 17 is retracted by the fluid cylinder 13, the conveyor belt 6 moves from the blow cylinder 17 to the conveyor belt 9 together with the empty winding tube 5 in which the caddy 3 is rewound. It is conveyed toward the guide edge 9 '. The conveyor belt 9 conveys the winding tube 5 to the caddy 3 to which the winding tube 5 belongs, either to the winding tube drawing-out portion or directly to the spinning machine.

Next, the rear half sleeve 18 of the blow cylinder 17 is shifted onto the conveyor belt 6 again, and at the same time, the front half sleeve 18 of the blow cylinder 17 is retracted by the fluid cylinder 19. As a result, the next caddy 3 with the cup 4 attached and waiting can enter into the blow cylinder 17. The front half sleeve 18 is then closed again. In principle, this operation process can also be realized when both the half sleeves 18 are simultaneously opened and closed. Based on this, the delay time due to the cup exchange is reduced.

The blow nozzle 1 which is tangentially opened obliquely upward with respect to the front half sleeve 18 of the blow cylinder 17.
4, 15 and 16 blow up the prepared yarn end portion at the upper end of the winding tube or the prepared yarn start end portion at an appropriate position of the winding tube upward. At that time, the yarn start end reaches the working region of the suction nozzle 25 of the feeder (yarn feeder) 24. For this purpose, the suction nozzle 25 is swiveled from the inactive position 25 ″ to the standby position 25 ′. The feeder 24 is connected to the suction duct 31 via a valve 47, as will be described later in connection with FIG. The suction duct supplies suction air to the entire automatic winder.

Prior to the blowing operation of the yarn start end portion by the blow nozzles 14 to 16, the yarn loop eliminating device 21 configured in a scissor shape is provided so that the yarn can reach the suction nozzle 25 without obstruction. Opened by In some cases, a balloon breaker (balloon restrictor) 43 may be additionally provided inside the blow cylinder 17. It is possible to additionally arrange a clamping device (not shown) in the feeder 24 or in the mouthpiece of the feeder, that is, in the suction nozzle 25, for securing the grasped yarn start end portion during the next turning movement of the feeder 24. . Not only that, it is also possible to roughen the suction nozzle 25 in order to prevent the yarn from slipping off the feeder 24 again.

After a predetermined time has passed after the yarn start end has been blown off, the feeder 24 is swung upward along the swirling path 33 so as to make the suction nozzle 25 reach the uppermost position in the drawing. During this upward turning, the thread 32 is inserted into the thread tensioner 23 and the thread cleaner 27, and possibly also into the cutting / clamping device 28. Following this insertion, the yarn cleaner 27 is inspected for the presence of the yarn end on the rewind bobbin side. When the yarn end on the rewind bobbin side does not exist, rewind bobbin replacement, that is, cup replacement is performed. For this reason, the feeder 24 is swung downward again, so that the suction nozzle 25 moves to the standby position 2.
Occupy 5 '. The new yarn end is then gripped and, as previously mentioned, is reinserted into the yarn cleaner 27 to check for the presence of this yarn end.

However, before the feeder 24 re-turns to its uppermost position, the suction tube 34 picks up the yarn on the winding bobbin side from the winding bobbin, that is, the twill winding package 38, and the inside of the yarn cleaner 27 for inspection. Have been inserted into. For this purpose, the suction tube 34 has a basic position 34 'from which it moves along a swirl path 36 to pick up the yarn on the winding bobbin side.

The reverse thread groove guide type traverse roller 37 stopped on the basis of the detection of the defect of the yarn 32 running through during the package winding operation is put in contact and the traverse package 38 driven by the traverse roller 38. Is also deterred. When the swiveled mouthpiece of the suction pipe 34 comes into contact with the traverse package 38, the reversing screw type traverse roller 37 is switched to the slow reverse reversing gear stage, whereby the hoisting package located on the peripheral surface of the traverse package 38 is rotated. The thread start end on the bobbin side is picked up by the suction tube 34 and sucked. After the stipulated time has elapsed, the suction pipe 34 pivots again into its basic position 34 '. As a result, the yarn start end on the winding bobbin side is entrained, and is inserted into the yarn cleaner 27 and, as the case may be, into the cutting / clamping device 28 as described above. Next, when the yarn on the side of the rewinding bobbin supplied after the cup replacement is also inserted into the yarn cleaner 27, the yarn cleaner detects that both yarn ends exist like double yarns. . However, if the static detection of the double thread signal cannot be realized by the existing electronic thread cleaner or the associated evaluation circuit, the suction tube 34 again swivels upward by a predetermined distance, in which case the suction tube 34 is swung upwards. The yarn end portion grasped by the can be carried. Then, only the yarn on the rewind bobbin side is inserted into the yarn cleaner 27. When checking the presence or absence of a single thread in the thread cleaner 27 by means of a temporally linked sequence of steps in which the drive device 44 (FIG. 2) makes a closed movement course,
It is possible to unambiguously relate whether the yarn is the yarn end on the rewind bobbin side or the yarn end on the winding bobbin side. For this purpose, an information transmission line 44 ″ is provided for transmitting information from the drive device 44 to the package winding part computer 42 at all times after its start-up, regarding the respective stages of the yarn binding cycle.

In the method described above, the feeder 24 driven by the drive device 44, like the other components of the yarn joining device, makes two stroke movements. Therefore, if the absence of the yarn end on the unwinding bobbin side is detected even if the entire yarn binding cycle is slightly extended with respect to one stroke, the cup will be immediately transferred as described above within one yarn binding cycle. It is possible to connect exchanges. However, since the cups are exchanged relatively frequently, overall, a time savings is obtained compared to two thread-bonding cycles in which the cups are changed each time.

During operation of the package winding section 1, the electronic yarn cleaner 27 receives a dynamic yarn signal. In that case, the yarn cleaner detects a thick portion, a thin portion, or a double yarn. If a double yarn is detected or if the tolerance range for the yarn count is exceeded, the electronic yarn cleaner 27 releases a signal, which activates the cutting and clamping device 28. As a result, the yarn is cut and the lower end of the yarn is clamped. As a result, the yarn start end is not lost, so that the yarn joining operation can be continued without any problems.

Regular splicing (twisting) is performed as usual after both yarns are present. For this purpose, the splicing prism 26 'of the splicer 26 is supplied with both yarns. Splicers of this type are known in particular from DE-A 31 32 895. In that case, the yarn ends are shortened, sucked into the yarn preparation nozzles 52 (FIG. 2) arranged above and below the splicing chamber and defibrated, and a prescribed overlap is applied to the ends of both yarns. They are pulled in opposite directions through the splicing prism 26 'by the amount that produces them. The splicing operation is then carried out by impacting compressed air once or several times within the splicing prism 26 '.

After splicing, the thread 32 is released again and the splicing joint is inspected by the thread cleaner 27. If the splicing joint is within the specified tolerance range, normal package winding operation continues. In that case, the yarn is fed from the cup 4 in the unwinding position to the balloon breaker 43 and / or the yarn loop eliminating device 2
1 and thread tensioner 23, electronic thread cleaner 27 and cutting
It travels with the clamp device 28, rubs the yarn catching nozzle 29, passes through the yarn guide ring 35, and enters the guide groove of the reverse thread groove guide type traverse roller 37, and is wound up in a traverse winding package 38 in a twill winding layer form. . The yarn loop eliminating device 21 is normally closed only during the so-called acceleration period, that is, at the start of winding, and remains open during the standard winding operation. The traverse package 38 is held on a package frame 39 by its winding tube, and the package frame is fixed to a swivel shaft 60. The package frame 39 can be opened by the frame opening lever 41 as needed. The position 39 'which the package frame 39 occupies after the twill winding package 38 has been replaced is shown in phantom.

The yarn catching nozzle 29 is a suction arm 30.
Through a suction duct 31 extending along the entire automatic winder.

Next, the yarn binding cycle according to the present invention will be described in detail with reference to FIG.

At each package winding section 1 of the automatic winder, a control unit or package winding section computer 42 is arranged. Substantially all the information that occurs in the package winder 1, especially from the electronic thread cleaner 27, is transferred to the package winder computer 4.
2 and an appropriate control signal is sent to each functional unit of the package winding. The package winding unit computer 42 includes a bidirectional data transmission line 5
It is connected via 1 ', 51 "to a central control unit, i.e. an automatic winder central computer 51.

The automatic winder central computer 51 monitors the pressure monitor 50 via the information transmission line 50 ', which is arranged in the compressed air conduits 53', 53 ". The compressed air conduit 53 '. Compressed air source 5 at the upstream end of
3 are arranged.

When the pressure in the pressure monitor 50 drops below a specified minimum value, this information is transferred from the automatic winder central computer 51 to all package winding computer 42 via the data transmission line 51 ', ie the command transmission line.
Be transmitted to. On the basis of this transmission, each package winding unit computer 42 does not send a start command to the driving device 44 for the yarn joining operation via the control line 44 '. When the pressure in the pressure monitor 50 again exceeds the minimum value, a command is transmitted to the package winding computer 42 via the data transmission line 51 'that the start of the thread binding operation should no longer be locked. It This measure is absolutely necessary to avoid splicing errors caused by too low a splicing pressure. However, it goes without saying that the above-mentioned command transmission means only give the possibility of preventing the start of the thread binding operation. The thread binding operation that has already started is continued. This is because, in order to perform another thread binding operation, the drive device 44 and the thread binding device part actuated by the drive device must be reset to the zero position again, and this reset is delayed. This is because it becomes possible to carry out a complete thread binding operation again. A compressed air conduit 45 ″ branches off from a compressed air conduit 53 ″ supplying all package windings, which is connected to the splicer 26 via a valve 45 and another compressed air conduit 26 ″. ing. The compressed air conduit 26 "leads to one or more blowing orifices in the splicing passage, as is commonly used in splicers.

The valve 45 is routed by a drive 44 via a first control line 45 "to ensure that the splicing air is accurately supplied at the moment when both yarn ends are prepared for splicing. A second control line 45 ″ ″ directly reaches the valve 45 from the package winding computer 42. When the release signal of the splicing air is delivered by the first control line 45 ", the valve 4 via the second control line 45""
It is possible to suppress the operation of No. 5. The release inhibition of the splicing air is performed when the conditions necessary for the success of the splicing operation are not provided. This case is, for example, the following individual condition. That is: (a) Detection of absence of yarn end on the winding bobbin side or the rewinding bobbin side. This is the package winding computer 4 from the electronic thread cleaner 27 via the signal line 27 '.
2 is transmitted.

(B) Detection of deviation of the pressure value of compressed air in the pressure monitor 50. This is an information transmission line 50 ', an automatic winder central computer 51 and a data transmission line 51'.
And is transmitted to the package winding unit computer 42 via.

(C) Detection of deviation of the air value of the suction air in the pressure monitor 54. This is an information transmission line 54 ″, an automatic winder central computer 51 and a data transmission line 5
1'and is transmitted to the package winding unit computer 42.

(D) Detection of deviation of the temperature target value range when a thermo-splicer of the type in which a splicing head and / or splicing air is heated by a heating device is adopted. This is from the temperature sensor 49 to the information transmission line 49 '.
Is also transmitted to the package winding unit computer 42 via.

Similar to the release of splicing air into the splicer 26, more specifically into the splicing passage of the splicing prism 26 ', the supply of defibration air to the splicer thread preparation tube 52 is also controlled. . The ends of both yarns are cut into a fixed size and then the yarn preparation small tube 5
2 is sucked into and untwisted and then drawn into the splicing passage of the splicing head by a mechanical feeder (not shown). For details of the splicing process, the above-cited German Patent Application DE-A-3132895 is again incorporated. Two thread preparation tubes 52 arranged near both ends of the splicing passage.
(One of which is schematically represented in FIG. 2 as a symbol), a compressed air conduit 48 ′ branched from a compressed air conduit 53 ″ for supplying pressure to all package windings 1 and a valve 4.
Compressed air is supplied via 8 and another compressed air conduit 52 '. The compressed air flows tangentially downward from the side surface into the yarn preparation small tube 52, thereby generating a swirling suction flow for sucking and preparing the yarn end portion for splicing. The normal control of the valve 48 is carried out by the drive 44 via the first control line 48 ". Again, that is to say when the conditions necessary for a successful splicing operation are not given, the second Package winding computer 42 via control line 48 ″ of
Inhibits release of yarn preparation air controlled via the first control line 48 ″.

FIG. 2 shows that the package winding computer 42 and the automatic winder central computer 51 are provided with other transmission lines for additional functions in addition to the information transmission lines and control lines described above. Although omitted, this additional function is not relevant to the subject matter of the present invention, and the description thereof is omitted here. Similarly, although a large number of other control lines are output from the drive device 44, these control lines are used for both the movement of the feeder 24, the movement of the suction tube 34, and the movement of the yarn end portion operating lever. Provided for controlling movement of the cutting device for the yarn end, opening / closing movement of the cover (when a cover for closing the splicing passage is provided), and suction air supply to the feeder 24 and the suction pipe 34. Has been.

The supply of suction air to the feeder 24 is ensured by a valve 47 which is controlled via a control line 47 '. The valve 47 is provided as needed (at the time of thread capture),
Suction duct 3 extending along the entire automatic winder
The suction air conduit 31 ″ connected to 1 is in short-circuit communication with the suction air conduit 24 ′ of the feeder 24.

The valve 46 for releasing the suction air for the suction pipe 34 is controlled by the control line 46 '. When the suction air is released, the suction air conduit 31 ′ branched from the suction duct 31 is short-circuited to the suction air conduit 34 ″ of the suction pipe 34.

The suction air level in the suction duct 31 is also checked by the automatic winder central computer 51 via a pressure monitor 54 which is connected to the suction duct 31 via a conduit 54 '. If the suction pressure is out of the specified tolerance range, the information is transmitted from the pressure monitor 54 to the automatic winder central computer 51 via the information transmission line 54 ″. Is transmitted to the package winding unit computers 42 in the same manner as when the compressed air pressure is transmitted from the pressure monitor 50. As a result, each package winding unit computer 42 controls the control line 4.
The start of the drive 44 is locked via 4 '.

In this case too, the valves 45 to 48 are locked in order to be able to interfere with the ongoing thread binding cycle, that is to say the opening of the valves controlled by the drive device 44 is prevented. This not only saves compressed air, but also suction air. However, this savings is always obtained only if the lack of at least one condition necessary for successful splicing is confirmed prior to air release at each valve.

To prevent the release of suction air,
Control lines 46 "and 47" reach the valves 46 and 47.

In FIG. 2, the drive unit 44 is symbolically shown as a cam plate set or a cam shaft, and this type of drive unit is the most frequently used embodiment of the yarn coupling device. However, it goes without saying that it is also possible to employ another drive device in place of such a device within a range not departing from the idea of the present invention. It is essential to carry out one closed course of motion in order to obtain a combined step sequence.

What can be generally confirmed from the above description is that the method according to the present invention reduces the energy demand of the automatic winder as a whole due to the air saving.
Not only that, it is possible to avoid splicing errors that would otherwise be unknowingly rolled up as a twill winding package that would cause problems in later processing processes.

[Brief description of drawings]

FIG. 1 is a side view of a package winding unit having a yarn binding device.

FIG. 2 is a configuration diagram of important components in connection with the present invention of the thread binding device.

[Explanation of symbols]

1 package winding part, 2 winding part frame,
3 caddies, 4 cups (rewind bobbins), 5
Winding tube, 6 conveyor belt, 7 arrow indicating the conveying direction, 8 conveyor belt, 8'side guide,
9 conveyor belts, 9'guide edges, 10, 1
1 deflection guide roller, 12 abutment, 13 fluid cylinder, 14, 15, 16 blow nozzle, 1
7 Blow cylinder, 18 Half sleeve, 19
Fluid cylinder, 20 abutment, 21 yarn loop eliminating device, 22 actuating device, 23 yarn tensioner, 2
4 feeders, 24 'suction air conduit, 25 suction nozzle, 25' standby position, 25 "inactive position, 26 splicer, 26 'splicing prism, 26"
Compressed air conduit, 27 electronic thread cleaner, 2
7'information transmission line, 28 cutting / clamping device,
29 thread catching nozzle, 30 suction arm, 31 suction duct, 31 ', 31 "
Suction air conduit, 32 threads, 33 swirl path, 34 suction tube, 34 'basic position,
34 ″ suction air conduit, 35 thread guide ring, 36 turning path, 37 reverse thread groove guide type traverse roller, 38 traverse package (winding bobbin), 39 package frame, 39 ′ package frame occupied position after traverse package,
40 swivel axis, 41 frame release lever, 4
2 package winding part computer, 43 balloon breaker, 44 drive device, 44 'control line, 44 "information transmission line, 45 valve, 4
5'compressed air conduit, 45 "first control line, 4
5 ″ ″ second control line, 46 valves, 46 ′,
46 "control line, 47 valves, 47 ', 47"
Control line, 48 valves, 48 'compressed air conduit,
48 ″ first control line, 48 ″ ″ second control line, 49 temperature sensor, 49 ′ information transmission line, 50 pressure monitor, 50 ′ information transmission line, 51 automatic winder central computer as central control unit, 51 ′, 51 ″ bidirectional data transmission line, 52 yarn preparation small pipe, 52 ′ compressed air conduit, 53 compressed air source, 53 ′, 53 ″
Compressed air conduit, 54 pressure monitor, 54 'conduit,
54 ″ information transmission line

Claims (7)

[Claims] 1. Splicing to form a thread connection, in which the drive of the thread connection device makes one closed movement course for a series of time-connected steps during one thread connection cycle. In the method, the release of the splicing air is suppressed when the conditions necessary for the success of the splicing operation are not provided at the release points of the splicing air in the time-sequential step sequence. A method of forming a thread binding portion by splicing. 2. Before the release of the splicing air,
2. The method according to claim 1, wherein the presence of the yarn on the winding bobbin side is inspected, and the release of the splicing air is suppressed when the yarn on the winding bobbin side is absent. 3. Prior to the release of the splicing air,
3. The method according to claim 1, wherein the presence of the yarn on the rewind bobbin side is inspected, and the release of the splicing air is suppressed when the yarn on the rewind bobbin side is absent. 4. Before the release of the splicing air,
A method according to any one of claims 1 to 3, wherein the presence or absence of pressure required for splicing is inspected and the release of splicing air is suppressed if the pressure is not suitable for splicing. 5. The temperature required for quality-matched splicing of the splicing head of the thermosplicer or the splicing air heating device is checked before the point of release of the splicing air, and the temperature deviation from the temperature setpoint is determined. 5. The method according to any one of claims 1 to 4, wherein in some cases the release of splicing air is suppressed. 6. If the release time of the defibration air within the time-coupled step sequence does not provide the conditions necessary for successful splicing operation,
6. A method according to any one of claims 1 to 5, wherein the release of the defibration air required to prepare the yarn end is suppressed. 7. The rewind bobbin side if the conditions required for a successful splicing operation are not provided at the time of release of the suction air for catching the yarn end portions in the time-sequentially connected step series. 7. The release of suction air required for capturing the yarn end of the yarn and the yarn end on the winding bobbin side is suppressed, according to any one of claims 1 to 6.
Method described in section.