JPH03213528A - Sliver slackness controller in sliver changer - Google Patents

Abstract

PURPOSE:To smoothly carry out sliver ending and sliver changing operations by changing the rotation of a motor for rotating a peg according to the outer diameter of a full bobbin and providing the same amount of a wound or rewound sliver of the full bobbin on the peg as that in the full bobbin of the standard outer diameter. CONSTITUTION:The outer diameter of a full bobbin on a full sliver peg is measured and rotation of a motor 24 for rotating the peg is controlled according to the measured value. The amount of a delivered or wound sliver is changed corresponding to the amount of the sliver wound on a bobbin so that the slack state of the sliver caused in sliver ending and sliver changing operations may not be different from that in the case of a full bobbin having the standard outer diameter.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a thread changing machine that connects the thread of a small bobbin of a spinning creel with the thread of a full bobbin (full bobbin) of a spare rail, and replaces the thread. .

BACKGROUND OF THE INVENTION Such a sintering machine is disclosed in, for example, Japanese Patent Application Laid-Open No. 62-53425. In this device, the transition and replacement operations are performed as follows. In other words, ■ Place the full bobbin of the spare rail on the peg, perform the Shino end exit at the exit height position, and pass the Shino to the Shino connection head.

■While rewinding the full bobbin Shino, advance the Shino Tsugi head above the trumpet and perform Shino Tsugi.

■While continuing to unwind the Shino, raise the full bobbin to the spare rail, and remove the empty bobbin while stopping unwinding. (
The amount of unwinding at this time is set so that no breakage occurs during taking out the empty bobbin. ) ■ Next, while winding the Shino, complete the bobbin.
and hang it on the front row creel from which the empty bobbin was removed.

The amount of winding and unwinding of Shino in each of these steps is
Each is set for a full bobbin with a standard outer diameter,
At this time, the Shino that is pulled out should have an appropriate amount of slack.

Problems to be Solved by the Invention According to the above, even a full bobbin smaller than the reference outer diameter is unwound and wound under the same conditions as the reference outer diameter.
For example, when unwinding, the amount of unwinding is small and proper slack does not occur. Therefore, Shino will be illegally drafted and cut. On the other hand, if it is larger than the standard outer diameter, the amount of unwinding will be large, causing a loop in the wire, which may be sent directly to the draft section, which is not preferable.

Means for Solving the Problems This invention provides a means for measuring the outer diameter of a full bobbin to be re-rolled, and a means for measuring the winding or unwinding amount of the bobbin regardless of the outer diameter of the bobbin.
The present invention is characterized in that it includes a control device that controls the peg rotation motor in accordance with the bobbin outer diameter so as to maintain a constant value corresponding to several steps during the refill work.

The outer diameter of the full bobbin on the peg is measured, and the rotation of the peg rotation motor is controlled accordingly.If the sagging state of the bobbin that occurs during the thread joining or replacement work is a full bobbin with the standard outer diameter, The feed-out amount or take-up amount is changed in accordance with the actual bobbin winding diameter so that the amount is the same as the actual bobbin winding diameter.

Example The sash exchange machine 1 shown in FIG. 2 is equipped with a sash connection device 1a.

In this connecting device 1a, a vertical guide bar 3 stands upward from the machine frame 2. The guide bar 3 is guided by an elevating body 4 for the Mitsushino support so that it can be moved up and down. The elevating body 4 is integrally provided with a post 5 on the upper side. The elevating body 4 is connected to two chinos 9, 9 which are rotated between the upper and lower change gears 9 and 8 by a traveling motor 6. A U-shaped upper base 11 (FIG. 1) of the moving mechanism 10 is integrally connected to the upper end of the post 5.

In the moving mechanism 10, as shown in FIG. 3, a pair of horizontal guide bars 12 and 13 are arranged in parallel on the U-shaped base 11 in the moving direction of the shaving machine 1. This pair of horizontal guide bars 1
2.13 is inserted into the lower protrusion 14a (FIG. 1) of the movable body 14 so as to be freely slidable in the axial direction, and the movable body 14 is horizontally guided in the direction toward the outlet nozzle 30 by the horizontal guide bars 12 and 13. be done. As shown in FIG. 4, a rack 12a is carved into the horizontal guide bar 3-12, and a pinion 15 that meshes with the rack 12a is connected to the output shaft of a drive motor 16 by a key. An encoder 17 is connected to the drive motor 16, as shown in FIG. 6, for detecting the amount of movement of the moving body 14 from the origin position A1. This encoder 17 is connected to a control device 45, which will be described later (FIG. 1). A Mitsushino support 20 is integrally fixed to the end of the moving body 14 in the direction of the outlet nozzle 30. The Mitsushino support 20 has a main body 20a,
Six pegs 21 are rotatably supported at the thread bobbin pitch of the spinning creel 56 (FIG. 1) in the direction of movement of the thread changer 1. These pegs 21 are disclosed in Japanese Patent Application Laid-Open No. 62-5342.
As shown in No. 5 or FIGS. 3 and 5, a pulley 22 connected to the lower end of each peg 21, an intermediate pulley 23 rotatably supported within the main body 2Oa, and a peg rotation motor 24,
Belts 26 and 27 are hung on drive pulley 25 of 24,
The rotation motor 24 rotates every other three pegs 21 in forward and reverse directions. The peg rotation motor 24 is a variable speed motor whose rotational speed is changed in response to a command from a control device 454-, which will be described later. The peg 21 has a movable body 14 connected to the U-shaped base 11.
When the spinning creel 56 is at the origin position A1 in contact with the left end in FIG. The full bobbin F is taken down to the outlet height position B1 in FIG.

Next, the outlet nozzle 30 corresponds to the peg 21,
It is connected to a pipe 33 rotatably supported on both sides by the elevating body 32 of the left and right elevating mechanisms 31. When the lever 34 swingably supported on the machine frame 2 swings, the pin 35 at the tip of the lever 34 engages with the elongated hole 36 of the elevating body 32, and the elevating body 32 slides along the guide rod 37. A guide lever 38 integrally connected to 33 is guided along the cam groove 39,
It is moved from the lower standby position x1 shown in FIG. 1 to the output position x2 shown by the two-dot chain line. Horizontal distance L between the outlet nozzle 30 at the outlet position X2 and the peg 21 at the origin position A1 when the full bobbin F is lowered to the outlet height position B1.
(Fig. 6) is designed so that even if a bobbin F slightly exceeding the standard outer diameter of a full bobbin F is placed on the peg 21, the distance L2 between the outer periphery and the outlet nozzle 3o is equal to or greater than the appropriate outlet distance L1. It is set to .

Next, on the left and right sides of the machine frame 2, as shown in FIGS. 2 and 3, a sensor 41 consisting of a light emitting device and a light receiver is attached to the outlet nozzle 30 side of the full bobbin F at the origin position A1 at the outlet height position B1. be. This sensor 41 moves the movable body 14 at the origin position A1 in the direction of the outlet nozzle 30 with the outlet nozzle 30 located at the outlet position The distance between the outlet nozzle 30 and the outer periphery F1 of the body part of the full bobbin F at the moment when the delivery is interrupted is fixed at a position where the distance is the appropriate outlet interval L1.

Next, the control device 45 is configured using a known microcomputer, and has a calculation section, a storage section, and an input/output section. According to the control program stored in the storage unit, when the outlet nozzle 30 is located at the outlet position x27-, a command is output to the drive motor 16 to advance the moving body 14 from the origin position A1, and the sensor 41 When the signal whose light is blocked is confirmed, the drive motor 16
This is to output a stop command. The storage unit also stores the reference outer diameter of the full bobbin F, the reference outer diameter of the full bobbin F, and the reference outer diameter of the full bobbin F.
The movable body 14, which is placed on the peg 21, moves the peg 21 during the transfer and exchange operations in accordance with the reference movement amount from the origin position A1 until it stops in response to the signal from the sensor 41, and the reference full bobbin F. Peg 21 to prevent the wire being pulled out from the fully loaded bobbin F placed on the
The reference rotational speed of the peg rotation motor 24, which is set so that the full bobbin F is rotated in the forward and reverse directions via It is stored in advance corresponding to each process during raising and lowering, and during suspending the full bobbin F to the front row creel. Then, based on the actual movement amount (detected by the encoder 17) from the origin position A1 until the movable body 14 carrying the full bobbin (not necessarily the standard outer diameter) stops according to the sensor signal, the bobbin at that time is determined. The rotational speed of the bobbin rotation motor 24 with respect to the outer diameter is calculated in accordance with each of the above steps, and the amount of winding or unwinding of the wire drawn from the actual full bobbin is calculated in each of the above steps regardless of the outer diameter of the full bobbin. The bobbin rotation motor 24 is programmed to be controlled in the same manner as in the case of a full bobbin with a standard outer diameter (faster if the outer diameter is smaller, slower if larger). There is a relationship in which the difference between the reference movement amount and the actual movement amount is 1/2 of the difference between the actual full bobbin outer diameter and the reference outer diameter, and the actual movement amount corresponds to the actual full bobbin outer diameter. . In this sense, the measuring means 4 measures the full bobbin outer diameter using the sensor 41 and the encoder 17.
0 is configured. Furthermore, the spinning machine 5 in Figure 1
0, S is a small bobbin in the front row of the creel, M is a medium bobbin in the rear row of the creel, 51 is a Shinotsugu head corresponding to each sunrise nozzle 30, 52 is before and after the creel 56,
A peg for an empty bobbin is raised and lowered, 53 is a draft portion, 54 is a spindle, and 57 is a plate.

A full bobbin F is placed in the front row of the creel 56, and a medium bobbin M is placed in the back row, and spinning is started. When the medium bobbin M in the rear row becomes the small bobbin S, the front and rear rows of the creel 56 (not shown) are replaced by a switching machine, and the small bobbin S is positioned in the front row of the creel. It is assumed that a full bobbin F whose outside diameter is outside the standard is currently suspended from the spare rail 55. Due to the rotation of the lifting motor 6, the full bobbin support 20 rises via the lifting body 4, and six full bobbins F are taken out from the spare rail 55 at a height position B1.
Take it down. Next, the outlet nozzle 30 is moved to the lifting device 31.
is raised from the lower standby position x1 to the output position X2. This situation is clearly shown in FIG.

Next, the control device 45 outputs a drive command to the drive motor 16, and while the full bobbin F is placed on the peg 21, the movable body 14 is moved horizontally in the direction of the outlet nozzle 30 by the engagement of the pinion 15 and the rack 12a. When the outer periphery F1 of the body part of the full bobbin F, which moves regardless of the outer diameter of the full bobbin F1, blocks the light emitted from the sensor 41, the control device 45 outputs a stop command to the drive motor 16 based on this sensor signal, and the full bobbin F1 is moved. 3. Stops the moving toward the outlet nozzle 30.

At this time, the outlet nozzle 30 and the outer circumference F of the body winding part of the full bobbin F
1 is the appropriate lead-out interval L1.

Next, the feed nozzle 30 starts suction by the action of an air suction source (not shown), and the peg 21 is rotated by the peg rotation motor 24 to rotate the full bobbin F1 in the roving rewinding direction. Although the end is suctioned, since the distance between the lead-out nozzle 30 and the outer periphery F1 of the body portion of the full bobbin F is the proper lead-out interval L1, a lead-out error does not occur. Further, while rotating the full bobbin F1 in the roving rewinding direction, the moving body 14
is returned to the origin position IWAI, and the outlet nozzle 30 is lowered to the lower standby position X1 while sucking the Shino end, and the Shino is delivered to the Shino joint head 51. After the Shinotsugu head 51 is swung from the hanging state shown in FIG. 1 to the horizontal state, the draft portion 5
Carry the Shino above the trumpet No. 3 (also at this time, use full bobbin F)
(1 is rotated in the unwinding direction) is stacked on the supply line from the small bobbin S, and both poles are succeeded by the draft part 53. The shin joint head 51 cuts the shin supplied from the small bobbin S to complete the shin joint. Subsequently, the full bobbin F and the small bobbin S are exchanged as follows by moving the full bobbin support 20 and the empty bobbin peg 52 back and forth and up and down.

That is, from the outlet height position B1, the full bobbin F is rotated in the unwinding direction while being placed on the peg 21 and raised to the spare rail 55 (not suspended, Fig. 7 (a)),
In this state, take out the small bobbin S and lower the full bobbin F, which has been raised, to a position slightly below the outlet height position X1 while rotating it in the winding direction (Fig. 7(b))
).

Continuing to rotate the full bobbin F in the winding direction, drive the drive motor 16 to position the full bobbin F directly below the bobbin hanger of the front row creel, raise it, suspend the full bobbin F to the front row creel, and move the full bobbin F to the spare rail. 55 (FIG. 7(C)), and the replacement of the empty bobbins F and S is completed.

Encoder 17 when the moving body 14 stops due to the sensor signal
The amount of movement of the moving body 14 from the origin position A1 can be determined from the detected value. Therefore, the control device 4511 calculates the actual bobbin outer diameter from this movement amount, and from this and the reference rotation speed, the rotation speed of the peg rotation motor 24 corresponding to the actual full bobbin outer diameter is calculated for each of the above-mentioned steps. Calculate accordingly. This rotation speed controls the winding and unwinding rotation of the full bobbin F during the thread connection and thread exchange operations, so even if the full bobbin outer diameter is outside the standard outer diameter, the winding or unwinding of the full bobbin F is controlled. The amount of unwinding is the same as when the standard outer diameter is used in each process, and the slack state of the wire drawn from the full bobbin F always matches that of the standard outer diameter, so that the wire is not cut or becomes too loose.

FIG. 8 shows another example in which a distance sensor 41 using sound waves is provided on the outlet nozzle 30 toward the center of the outer periphery F1 of the full bobbin body. The control device 45 includes an outlet nozzle 30.
The distance between the outer circumference F1 of the body wrap and the distance sensor 41 when the distance between the outer circumference F1 and the outer circumference F1 of the body winding becomes the appropriate feed interval L1 is stored, and the movable body 14 is fed from the origin position A1 at the height position B1 when the full bobbin F is fed. The drive motor 16 is stopped when the detected value from the distance sensor 41 reaches the above-mentioned distance after horizontal movement in the nozzle direction.

FIG. 9 shows an example in which the distance sensor 41 is attached to the U-shaped base 11 via a bracket 46 so as to face the center of the full bobbin F. In this example, the control device 45 controls the preset distance Y1 between the distance sensor 41 and the outlet nozzle 30, the distance Y2 between the distance sensor 41 and the center of the peg 21 when the moving body 14 is at the origin position A1, and the distance sensor 41 and the outer periphery F1 of the body wrap at the origin position A1, and the proper lead-out interval L1, the distance sensor 41 and the outer periphery F1 of the body wrap when the proper lead-out interval L1 is obtained.
and calculate the distance from the origin position A1 to the distance measurement value Y
3, the full bobbin F is moved in the direction of the outlet nozzle 30.

In this example, the actual bobbin outer diameter is determined from the interval Y2 and the distance measurement value Y3, so that the rotational speed of the peg rotation motor 24 is calculated and controlled. Therefore, in this example, the distance sensor 41 also serves as the means 40 for measuring the full bobbin outer diameter.

10 to 12, the outlet nozzle 30 is connected to the pipe 3.
3 shows what is to be swung. A pipe 33 having an outlet nozzle 30 integrally attached thereto is rotatably supported by the left and right elevating bodies 32. Left and right gears 63 and a pair of arms 60 are integrally connected to the pipe 33. The gears 63 are each meshed with a drive gear 62 rotated by a swing motor 61, and an encoder 17 that detects the swing angle is connected to the swing motor 61. The pair of arms 60 are attached at positions where the outlet nozzle 30 is at the outlet position x2 and sandwich six full bobbins F at the outlet height position B1 from both sides in the longitudinal direction, similarly to FIG. 3. A sensor 41 consisting of a light emitter and a light receiver is attached to the tip of the arm 60 facing each other. This sensor 41 is connected to the moving body 14 at the opening height position B1.
When the arm 60 swings from the original position (solid line position in FIG. 12) and the light emitted from the sensor 41 is blocked, the outlet nozzle 30 and the outer periphery of the full bobbin body are It is installed at a position where the distance F1 is the appropriate lead-out distance L1.

Similarly to the first embodiment, the control device 45 controls ON/OFF of the swing motor 61 using sensor signals, and also controls the peg rotation motor 24 relative to the actual full bobbin outer diameter based on the swing angle from the encoder 17. Calculate the rotational speed and select a full bobbin F corresponding to the actual bobbin outer diameter in the same way as above.
The winding and unwinding rotation of the machine is controlled.

In this example, for a full bobbin F with the moving body 14 at the origin position A1 at the outlet height position B1, the outlet nozzle 3
0 is located at the output position x2.

Next, the control device 45 outputs a rotation command to the swing motor 61. This rotation causes the outlet nozzle 30 to swing in the direction of the full bobbin F via the gears 62 and 63, and a stop command is output to the swing motor 61 using a sensor signal in which the light emitted from the sensor 41 is blocked. As a result, the interval between the outlet nozzle 30 and the outer periphery F1 of the full bobbin body becomes the appropriate outlet interval L1. In addition, since the actual full bobbin outer diameter is calculated from the swing angle of the arm 60 from the original position at the outlet position It is constant regardless of the size of the full bobbin outer diameter15. In the case of this example, since the full bobbin rows doffed at the same time on the same roving frame have almost the same outer diameter, the outlet nozzles are adjusted to have the appropriate outlet interval in the -th threading operation. You can fix it in the swung position and transfer the full bobbin as it is.

Furthermore, as shown in JP-A-64-52828 in Fig. 13,
The case where the outlet nozzle 30 is not directed to the center of the full bobbin F is shown.

In the above embodiment, the peg rotation motor is a variable speed motor and its rotation speed is controlled so that the amount of unwinding and winding of a full bobbin is the same as that of the standard outer diameter. The rotation motor is a constant speed rotation motor, and a timer for controlling the rotation time of this motor is provided for each of the above-mentioned processes, and the setting time of this timer is made variable according to the actual bobbin outer diameter. Good too. In addition, in the first embodiment, a measuring means for measuring the full bobbin outer diameter of 16 mm was constructed by a sensor for making the distance between the outlet nozzle and the actual outer periphery of the bobbin trunk constant and an encoder for detecting the amount of movement of the moving mechanism. However, in the present invention, it is not necessary to maintain the mounting positional relationship between this sensor and the outlet nozzle.

Effects of the Invention As described above, according to the device of the present invention, the rotation of the peg rotation motor is changed according to the outer diameter of the full bobbin to be replaced,
Since the amount of winding or unwinding of a full bobbin on the peg is the same as that of a full bobbin with the standard outer diameter,
It is possible to always keep the slack of the thread pulled out from a full bobbin during the thread exchange operation into an appropriate state, regardless of the bobbin outer diameter, and prevent the occurrence of thread cuts and loops. It can be done smoothly.

[Brief explanation of drawings]

Fig. 1 is a side view of the main parts of the Shinotsugi device, Fig. 2 is a front view of the Shinotsugi device, Fig. 3 is an enlarged plan view of Fig. 1, and Fig. 4 is an enlarged cross-sectional view taken along IV-IV of Fig. 3. , Fig. 5 is a sectional view taken along the line ■-■ of Fig. 3, Figs. 6 and 7 are explanatory diagrams of operation, Figs. 8 and 9 are another example of the sensor mounting location, and Fig. 10 is a front view of another embodiment. , FIG. 11 is a side view of FIG. 10, FIG. 12 is an explanatory diagram of the operation, and FIG. 13 is an example of a different positional relationship between the outlet nozzle and the outer periphery of the full bobbin body.

Claims (1)

[Claims] 1. Place the Mitsuru Shinomaki bobbin of the spare rail on the peg that is rotated by the peg rotation motor, and rotate the Mitsuru Shinomaki bobbin by rotating the peg during the Shinotsugi and Shino replacement work. In a rewinding machine configured to unwind or wind up a bobbin, there is provided a measuring means for measuring the outer diameter of the fully reeled bobbin, and a method for unwinding the reel regardless of the outer diameter of the fully retracted bobbin. A control device for controlling rotation of a peg rotation motor in accordance with the outer diameter of the bobbin so that the amount or the amount of winding becomes a constant value.