JPH0835127A - Shaper feeder in fine spinning frame - Google Patents

Abstract

PURPOSE:To provide a shaper feeder needing no mechanical adjusting operation and capable of regulating shaper feed in a fine spinning frame driving both chase and shaper driving systems by the action of a single driving motor. CONSTITUTION:A link mechanism 29 and a worm shaft 24 each transmitting the revolutions of a heart cam 21 to a shaper shaft 13 are set up between the heart cam 21 and shaper shaft 13; the worm shaft 24 is provided with a clutch 30 to be let in when a ring rail 10 reaches the rising end in one chase operation; besides, this shaper feeder has a feed detector 44 to measure the shaper feed for the ring rail 10 and a control unit 40 to output a command to let out the clutch 30 when the measurement of the detector 44 comes to coincidence with a target shaper feed calculated thereby.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaper feeding device for a spinning machine.

[0002]

2. Description of the Related Art As a conventional spinning machine, there is one disclosed in Japanese Patent Application Laid-Open No. 5-311518 by the present applicant.
This is a single drive motor that rotates the heart cam to move the ring rail up and down by one chase, and also rotates the shaper shaft to feed the shaper to the ring rail. Has
There was a ratchet mechanism that transmits one rotation of the heart cam to a predetermined amount of rotation of the shaper shaft (a predetermined amount of shaper feed), but in such a spinning machine, the type of yarn to be spun is changed. In this case, along with this change, complicated mechanical adjustment work of the ratchet mechanism was performed to adjust the shaper feed amount. Therefore, as a spinning machine capable of adjusting the feed amount of the shaper without the need for the complicated mechanical adjustment work described above when changing the yarn type, the applicant of the present invention has proposed a Japanese Patent Application No.
There was a patent application No. 209752 in which a heart cam drive motor rotates a heart cam to move the ring rail up and down by one chase, and a shaper shaft drive motor controllable by a controller feeds the shaper to the ring rail. When the yarn type is changed, the control of the shaper shaft drive motor is changed by operating the keyboard of the control device.

[0003]

In the spinning machine described above, the shaper feed amount can be adjusted without the need for mechanical adjustment work when changing the yarn type. However, in addition to the heart cam drive motor for rotating the heart cam, the shaper shaft Since there is a shaper shaft drive motor for rotating the machine, there is a problem in that it becomes an expensive spinning machine as a whole.

[0004]

From the above, the purpose of the present application is to
It is an object of the present invention to provide a shaper feeding device for a spinning machine in which a heart cam and a shaper shaft are rotationally driven by a single drive motor, and the shaper feeding amount can be adjusted without requiring mechanical adjustment work. In order to achieve this object, according to the invention of claim 1, the heart cam is rotated by one drive motor to move the ring rail up and down by one chase, and the shaper shaft is rotated to feed the shaper to the ring rail. In the spinning machine configured so that the transmission mechanism for transmitting the rotation of the heart cam to the shaper shaft is provided between the heart cam and the shaper shaft, the transmission mechanism includes:
In 1 chase operation, when the ring rail reaches the ascending end or immediately after that, a clutch to be connected is provided, and the feed amount detector that measures the shaper feed amount of the ring rail and the measured value of the feed amount detector are the target shaper feed. And a control device for outputting a disengagement command to the clutch when the amount is reached. Further, in the invention of claim 2,
A spinning length detector for detecting the spinning length is provided, and the controller calculates the target shaper feed amount based on the detection value of the spinning length detector while the ring rail is being raised in one chase operation. According to the invention of claim 3, the target shaper feed amount can be input and set in advance to the control device.

[0005]

According to the first aspect of the invention, the heart cam is rotated by the drive motor to cause the ring rail to move up and down by one chase, and the clutch is engaged when the ring rail reaches the ascending end or immediately thereafter. The rotation of the heart cam is transmitted to the shaper shaft via the transmission mechanism to cause the ring rail to perform shaper feed.While this shaper feed progresses, the measured value of the feed amount detector becomes the target shaper feed amount that is determined in advance. When released, the clutch is released. Further, in the invention of claim 2, the control device calculates the target shaper amount while the ring rail is rising after the start of spinning,
When the yarn type to be spun is changed, the target shaper amount corresponding to the yarn type is automatically changed. Further, in the invention of claim 3, when the type of yarn to be spun is changed, the target shaper feed amount set in the control device is reset by the keyboard operation.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 is a spindle of a spinning machine, from a main motor 2 (driving motor) to a chin pulley shaft 3
Etc. are rotated through. The main motor 2 drives the front roller 5, the middle roller 6 and the back roller 7 of the draft part 4 so as to have a predetermined draft ratio. Further, the front roller 5 is provided with a spinning length detector 8 for detecting the spinning length. The ring rail 10 is connected to the lifting pillar 11, and the lifting pillar 1
The lower end of 1 is connected to one end of the lifting tape 12. An upper end of a lifting lever 17 is swingably supported on the shaper shaft 13, and a lifting drum 19 is integrally fixed to the shaper shaft 13. The other end of the lifting tape 12 is fixed to a lifting drum 19 via a guide roller 18 which is rotatable in the middle of a lifting lever 17. The lower end of the lifting lever 17 is in pressure contact with the heart cam 21. A heart cam shaft 31 integrated with the heart cam 21 is connected to the main motor 2 via a worm shaft 32 and a gear mechanism (not shown),
The rotation of the main motor 2 rotates the heart cam 21, and one rotation of the heart cam 21 swings the lifting lever 17 to move the ring rail 10 up and down one chase via the lifting tape 12. ing.

Next, the transmission mechanism 23 for transmitting the rotation of the heart cam 21 to the shaper shaft 13 will be described. The worm gear 25 fixed to the worm shaft 24 is the shaper shaft 1
3 is meshed with a gear 26 fixed to one end of the gear 3. A swing disc 27 is fixed to the other end of the worm shaft 24. The swing disc 27 and the lifting lever 17 are fixed.
A link mechanism 29 is provided between the rocking plate 28 fixed to the lower part of the
Is provided. By the action of this link mechanism 29,
When the engagement position of the heart cam 21 with respect to the lifting lever 17 rotates from the peak to the valley (when the ring rail 10 descends from the upper end to the lower end), the swing disc 27 is
When the heart cam 21 rotates in the direction indicated by the arrow in the figure and the engagement position of the heart cam 21 rotates from a valley to a mountain (ring rail 10
Rocking disc 27
Is designed to rotate in the opposite direction of the arrow. Also,
A clutch 30 is provided between the oscillating disc 27 and the worm gear 25 on the worm shaft 24. The clutch 30 is controlled by a controller 40, which will be described later, and is engaged each time the ring rail 10 reaches the rising end in one chase operation. Has been. When the swing disk 27 is rotated in the direction of the arrow as described above with the clutch 30 connected, the lifting drum 19 rotates in the winding direction together with the shaper shaft 13 to wind up the lifting tape 12, and the ring rail 10 moves to 1 Each time the chase operation is completed, the target shaper feed amount is increased. When the clutch 30 is released, the worm gear 25 and the gear 26 are kept in mesh with each other so that the shaper shaft 13 does not rotate in the winding or unwinding direction.

Next, the control device 40 will be described. The control device 40 detects by engaging the engagement cam 42 integrated with the heart cam shaft 31 when the engagement position of the heart cam 21 with respect to the lifting lever 17 is a valley (when the ring rail 10 is located at the lower end). A limit switch 43 that outputs a signal is connected, and further, to the control device 40,
A detection signal is input from a proximity switch 33 that detects a proximity element 34 integrated with the worm shaft 32.
Therefore, the control device 40 determines the rotation angle of the heart cam shaft 31 and also determines when the engagement position of the heart cam 21 becomes a ridge or a valley.
Then, when the engagement position of the heart cam 21 becomes a mountain, the control device 40 (in one chase operation, the ring rail 1
A connection signal is output to the clutch 30 (when 0 reaches the rising end) to cause the ring rail 10 to perform the shaper feed as described above. Further, the control device 40 includes
The measurement value of the shaper feed amount is input from the feed amount detector 44 that detects the rotation of the worm shaft 24, and the control device 40
This measured value is compared with a target shaper feed amount S described later,
A disengagement command is output to the clutch 30 when the measured value reaches the target value. Next, the target shaper feed amount S will be described. First, in FIG. 3, the lift L, the chase amount H, and the full pipe length D are set and input to the control device 40 in advance via the keyboard 41. In addition, the control device 40 measures the spinning length d ′ of the heart cam shaft 31 at ¼ rotation based on the detection signals from the proximity switch 33 and the spinning length detector 8 while the ring rail 10 is being raised at the start of the machine operation. Then, the spinning length d (d = 4d ′) in one chase operation is obtained from this value d ′. Then, the control device 40 is configured to calculate the target shaper feed amount S by the following equation. Target shaper feed amount S = (L−H) / A ………… Number of chase until full pipe A = D / d ………………

Next, the operation of the shaper feeding device 50 configured as described above will be described. At the start of machine operation, the main motor 2 drives the spindle 1 and the draft rollers 5, 6 and 7 to rotate, and the heart cam 21 rotates to swing the lifting lever 17,
The ring rail 10 located at the lowermost position starts to rise in one chase operation. While the ring rail 10 is being raised, the control device 40 causes the heart cam 21 to move to 1 / s by the detection signals from the proximity switch 33 and the spinning length detector 8.
The spinning length d ′ after four rotations is measured, the spinning length d per rotation of the heart cam 21 is obtained from this value d ′, and this value d is applied to the above equation to calculate the target shaper feed amount S. When the ring rail 10 continues to rise and reaches the rising end position (the engagement position of the heart cam 21 with respect to the lifting lever 17 becomes a mountain), the control device 40.
Outputs a coupling signal to the clutch 30, and the swing of the lifting lever 17 is transmitted to the rotation of the swing disk 27 in the direction of the arrow in the figure via the link mechanism 29. Then, the worm gear 25 of the worm shaft 24 and the gear 26 of the shaper shaft 13 mesh with each other, the lifting drum 19 is rotated in the winding direction together with the shaper shaft 13, and the lifting tape 12 is wound up. Cause 10 to perform shaper feed. During this shaper feed, the control device 40 compares the measured value of the shaper feed amount measured by the feed amount detector 44 with the calculated target shaper feed amount S, and when the measured value reaches the target value S, the clutch 30 The connection release signal is output to. afterwards,
When one chase operation of the ring rail 10 is completed, the lower end position of the ring rail 10 is increased by the target shaper feed amount S compared to the previous time, and the shaper feed of the next one chase operation is calculated first. The target shaper feed amount S is repeated until the pipe is full. After that, when the type of yarn to be spun is changed, the control device 40 performs one chase from the spun length d ′ measured when the ring rail 10 is raised in the first one chase operation, in the same manner as the above operation. The spinning length d in the operation is obtained, and the target shaper feed amount S corresponding to the newly spun yarn type is calculated by the formula.

As described above, in the shaper feeding device 50 of this embodiment, the control device 40 automatically calculates an appropriate target shaper feed amount S when changing the type of yarn to be spun, and corresponds to the type of yarn being spun. It is possible to cause the ring rail 10 to perform the shaper feed with the target shaper feed amount S. Also, 1
Since the spindle drive system, the chase drive system and the shaper drive system are driven by the action of the two main motors 2, an inexpensive spinning machine can be provided. In the above embodiment, the control device 40 calculates the target shaper amount S, but the target shaper feed amount S can be set and input to the control device 40 via the keyboard 41, and the target shaper feed amount S can be selected. At the time of change, the keyboard 41 may be operated to reset the target shaper feed amount S. In addition, a plurality of target shaper feed amounts S may be preset and input to the control device 40 corresponding to a plurality of yarn types to be spun. Further, in the above-described embodiment, when the ring rail 10 reaches the rising end (when the engagement position of the heart cam 21 becomes a mountain), the control device 40 causes the clutch 30 to operate.
I tried to output a connection command to the ring rail 10
Immediately after reaching the ascending end, that is, immediately after the ring rail 10 starts to descend, a coupling command may be output to the clutch 30 to perform shaper feed.

Next, referring to FIG. 4, the shaper feeding device 50.
Another embodiment will be described, but the same components as those in the above embodiment are designated by the same reference numerals. In this embodiment, the spindle 1 and the draft rollers 5, 6, 7 are driven to rotate by the action of the spindle drive motor 51. The heart cam shaft 31 is driven to rotate by the action of the heart cam drive motor 52. By controlling the heart cam drive motor 52 by the control device 40 by an inverter to change the winding pitch of the yarn according to the spinning length,
Even if the winding speed of the winder in the subsequent process is increased, the occurrence of sluffing and the like is reduced.
The transmission mechanism 61 that transmits the rotation of the heart cam 21 to the rotation of the shaper shaft 13 is configured by connecting the heart cam shaft 31 to the worm shaft 24 via a reduction gear mechanism 54. The proximity switch 33, the limit switch 43 and the spinning length detector 8 are connected to the control device 40 in the same manner as in the first embodiment, and the formula is stored. Since the winding pitch changes depending on the length of the roll, the heart cam 21 is adjusted for each chase operation.
It is necessary to calculate each target shaper feed amount S by measuring the spinning length d ′ when the rotation of 1/4 turns. With the above configuration, the control device 40 can automatically calculate an appropriate target shaper feed amount S even with a spinning machine that changes the winding pitch according to the spinning length. Further, compared to a conventional spinning machine in which the spindle drive system, the chase drive system, and the shaper drive system are driven by different driving motors, the number of drive motors can be reduced by one, and the shaper feeding device 50 in an inexpensive spinning machine can be provided. Can be provided.

Next, the embodiments of the present application will be summarized. (A) The transmission mechanism 23 is provided with a link mechanism 29 for transmitting the swing of the lifting lever 17 swinging by the rotation of the heart cam 21 as the rotation of the worm shaft 24. Shaper feeder. (B) Reduction gear mechanism 5 that decelerates the rotation of the heart cam 21 and transmits it to the transmission mechanism 23 as the rotation of the worm shaft 24.
4. The shaper feeding device in the spinning machine according to claim 1, wherein the shaper feeding device is provided with 4. (C) The shaper feeding device in the spinning machine according to claim 1, wherein one drive motor also drives the spindle drive system.

[0013]

According to the first aspect of the present invention, a transmission mechanism for transmitting the rotation of the heart cam to the shaper shaft is provided between the heart cam and the shaper shaft. When the clutch reaches the target or immediately after that, the clutch is connected, and it is connected to the clutch when the feed amount detector that measures the shaper feed amount of the ring rail and the measured value of the feed amount detector reaches the target shaper feed amount. Since the controller is configured to output a release command, the shaper feed amount can be changed without requiring mechanical adjustment work, and the chase operation of the ring rail and the shaper feed operation can be performed by one drive motor. It is possible to provide an inexpensive shaper feeder for a spinning machine. Further, in the invention of claim 2, since the control device calculates the target shaper feed amount based on the detection value of the spinning length detector, when the yarn type is changed, the control device automatically sets an appropriate target. The shaper feed amount can be calculated, and the ring rail can be made to perform the shaper feed at the target shaper feed amount corresponding to the changed yarn type. Further, in the invention of claim 3, the target shaper feed amount can be input and set in advance in the control device by operating the keyboard. Therefore, when the yarn type is changed, only the keyboard is operated to correspond to the changed yarn type. The shaper feed can be performed on the ring rail with the specified shaper feed amount.

[Brief description of drawings]

FIG. 1 is an overall view of a shaper feeding device in a spinning machine.

FIG. 2 is an operation explanatory view.

FIG. 3 is a view showing a tubing thread when the tubing is full.

FIG. 4 is an overall view of a shaper feeding device in a spinning machine according to another embodiment.

[Explanation of symbols]

2 main motor, 10 ring rail, 13 shaper shaft, 21 heart cam, 23 transmission mechanism, 3
0 clutch, 40 control device, 44 feed amount detector, 52 heart cam drive motor

Claims (3)

[Claims] 1. A spinning machine in which a heart cam is rotated by one drive motor to move the ring rail up and down by one chase, and a shaper shaft is rotated to feed the shaper to the ring rail. A transmission mechanism for transmitting the rotation of the heart cam to the shaper shaft is provided between the heart cam and the shaper shaft. The transmission mechanism is a clutch that is engaged when the ring rail reaches the rising end in one chase operation or immediately thereafter. And a feed amount detector that measures the shaper feed amount of the ring rail, and a control device that outputs a connection release command to the clutch when the measured value of the feed amount detector reaches the target shaper feed amount. A shaper feeding device for a spinning machine. 2. A spinning length detector for detecting a spinning length is provided.
2. The shaper feeding device for a spinning machine according to claim 1, wherein the control device calculates the target shaper feed amount based on the detection value of the spinning length detector while the ring rail is being raised in the chase operation. 3. The shaper feeding device in a spinning machine according to claim 1, wherein a target shaper feeding amount can be input and set in advance in the control device by operating a keyboard.