JPH0441193Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a winding tension display device for spinning machines such as open-end spinning machines, bundled spinning machines, suction twisting spinning machines, and the like.

(Prior art) In this type of spinning machine, yarn spun from a spinning unit is pulled out at a constant speed by a pull-out roller that rotates together with a take-up shaft, and by the action of a take-up roller that rotates together with a take-up shaft. It is designed to be wound onto a bobbin. The winding tension when winding the thread onto the bobbin is (winding speed)/
When the winding tension is weak, the winding package tends to lose its shape, and on the other hand, when the winding tension is strong, the thread may break or the thread may be rewound from the winding package. In some cases, there are disadvantages such as difficulty in unwinding the winding smoothly. Therefore, it is necessary to wind the spun yarn with an optimum winding tension depending on the spinning conditions.

In the conventional device, as shown in FIG. 4, the winding shaft 31 and the take-up shaft 32 are moved along the longitudinal direction of the spinning machine frame (vertical direction in FIG. 4).
The driving force from a drive motor (not shown) is transmitted to the left and right take-up shafts 32 via a belt transmission mechanism through a gear box 33, and the rotation of one take-up shaft 32 is transmitted to a variable speed device. 34 and cam box 35 to be transmitted to the winding shaft 31. The variable speed device 34 is generally a continuously variable transmission using a V-belt, and as shown in FIG. It has a changing composition.

(Problems to be Solved by the Invention) In the conventional device, when changing the winding tension in accordance with the spinning conditions, the operator rotates the operating handle 36 of the variable speed device 34. The winding tension can be adjusted steplessly within the set range, but the set value must be determined by actually measuring the rotational speed of the winding shaft 31 and take-up shaft 32, and the winding tension cannot be adjusted to the predetermined set value. There is a problem in that it takes time and effort to adjust the tension.

Structure of the invention (means for solving the problem) In order to solve the above-mentioned problem, in this invention, a spinning machine equipped with a speed change mechanism for a take-up shaft and a take-up shaft is provided with a mechanism that changes the rotational speed of both shafts. a calculation device that is provided with a detection device for each detection, inputs the detection signals from the two detection devices, calculates the rotational speed of the two shafts based on the signal, and calculates the winding tension; A display section for displaying the calculation results was provided.

(Function) In the device of this invention, the rotational speed of the take-up shaft and the take-up shaft is detected by the detection device, and the calculation device calculates the rotational speed of both shafts based on the detection signal, and the calculation result is displayed on the display. Ru. Therefore, when changing the winding tension in accordance with the spinning conditions when changing the spinning conditions, the predetermined winding tension can be easily achieved by operating the speed change mechanism while watching the display. The rotational speed of both shafts is set at .

(Embodiment 1) A first embodiment embodying this invention will be described below with reference to FIGS. 1 and 2. A take-up shaft 1 and a take-up shaft 2 are installed on both the left and right sides of the spinning machine frame along the longitudinal direction of the frame, and as in the conventional device, the take-up shaft 2 is driven by a belt transmission from a drive motor (not shown). The output shaft 5 of a gear box 4 to which driving force is transmitted via a mechanism 3 is rotationally driven via a belt transmission mechanism 6. A V-belt 11 is wound between the pulley 7 fitted on one of the take-up shafts 2 and the pulley 10 of the variable speed device 9 attached to the input shaft 8a of the cam box 8.
A belt transmission mechanism 13 is disposed between the take-up shaft 2 and the take-up shaft 1, and the take-up shaft 1 is rotationally driven in synchronization with the take-up shaft 2.

Gears 14 and 15 for detecting the rotational speed of each shaft 1 and 2 are fitted to the take-up shaft 1 and the take-up shaft 2 so as to be able to rotate together with each other. 15
Sensors 16 and 17 are provided as detection devices that emit pulse signals in accordance with the rotation of the motor. and,
Detection signals from both sensors 16 and 17 are sent to a calculation device 18, and the calculation results of the calculation device 18 are displayed as numerical values on a digital display device 19 serving as a display section.

Next, the operation of the apparatus configured as described above will be explained. When the machine is operated, the driving force of the drive motor is input to the gearbox 4 via the belt transmission mechanism 3, and the output of the gearbox 4 is transmitted to the belt transmission mechanism 6.
is transmitted to the take-up shaft 2 via.
Also, the rotation of take-up shaft 2 is caused by pulley 1.
0, is input to the cam box 8 via the V belt 11 and the variable speed device 9, and is transmitted from the output shaft of the cam box 8 to the winding shaft 1 via the belt transmission mechanism 13, and both shafts 1 and 2 are driven synchronously. be done. When both shafts 1, 2 rotate, gears 14, 15 fitted on each shaft 1, 2 also rotate together, and pulse signals corresponding to the rotational speeds are output from sensors 16, 17. The calculation device 18 inputs the pulse signals from both sensors 16 and 17, calculates the rotational speed of the take-up shaft 1 and the take-up shaft 2 based on the signals, and calculates the take-up tension=
The winding tension is calculated according to the formula (winding speed)/(drawing speed), and the value of the winding tension is displayed numerically on the digital display device 19.

When it is necessary to change the set value of the winding tension due to a change in the spinning conditions, the operator operates the operating handle 9a of the variable speed device 9 to adjust the winding tension to a predetermined value. The rotational speeds of the take-up shaft 1 and take-up shaft 2 are always monitored by sensors 16 and 17.
Since the value of the winding tension is detected by the arithmetic unit 18, calculated by the arithmetic unit 18, and displayed on the digital display device 19, the operator can adjust the value to the predetermined set value while looking at the display on the digital display device 19. By operating the operation handle 9a of the variable speed device 9 at the same time, the winding tension can be set to a predetermined value very easily.

(Example 2) Next, a second example will be described with reference to FIG.
The apparatus of this embodiment differs from the apparatus of the previous embodiment in that the variable speed device 9 can be automatically adjusted. A gear 22 that meshes with a gear 21 fitted to the output shaft of a motor 20 capable of forward and reverse rotation is fitted onto the rotating shaft 9b of the variable speed device 9 in place of the operating handle of the conventional device. The rotation shaft 9b is rotated by the reverse rotation, and the pitch diameter of the pulley of the variable speed device 9 is changed. In addition, a control device 23 which also serves as a calculation device is provided in place of the calculation device 18, and the control device 23 calculates the rotational speed of each shaft 1 and 2 by inputting detection signals from each sensor 16 and 17. The winding tension is calculated, and the set value of the winding tension input via the input device 24 such as a keyboard is compared with the calculation result, and the difference between the two is 0.
The motor 20 is driven to rotate in forward and reverse directions so that.

Therefore, in the device of this embodiment, simply by inputting the set value of the winding tension through the input device 24, the variable speed device 9 is automatically activated and the winding tension is adjusted to a predetermined value. .

Effects of the invention As detailed above, according to this invention, it becomes easier to change and set the winding tension in response to changes in spinning conditions, and it is also possible to reliably set the winding tension to a predetermined setting value. It has this excellent effect.

[Brief explanation of the drawing]

Figures 1 and 2 show a first embodiment embodying this invention, in which Figure 1 is a schematic plan view, Figure 2 is a schematic perspective view of the main parts, and Figure 3 is a second embodiment. FIG. 4 is a schematic plan view of a conventional device, and FIG. 5 is a perspective view of a variable speed device. Take-up shaft...1, Take-up shaft...
...2. Sensor as a detection device...16,17,
Arithmetic device...18, digital display device as a display section...19.

Claims (1)

[Scope of claim for utility model registration] In a spinning machine equipped with a speed change mechanism for a take-up shaft and a take-up shaft, a detection device for detecting the rotation speed of the take-up shaft and a detection device for detecting the rotation speed of the take-up shaft a detection device; a calculation device that inputs detection signals from both of the detection devices and calculates the rotational speed of both shafts based on the signals and also calculates the winding tension; and a calculation device that displays the calculation results of the calculation device. A spinning machine winding tension display device consisting of a display section.