JPS5891832A - Automatic winding of roving in roving frame - Google Patents

Abstract

PURPOSE:In the state where the feed of roving is stopped, the new bobbin and the flier are made to rotate at almost the same speed for a short time and the presser paddle is brought into contact with the new bobbin to press the sliver end to the bobbin and ensure the winding of the sliver around the bobbin. CONSTITUTION:The bobbin rail is raised until the fluff 17 winding around the upper periphery of the new bobbin 16b becomes as high as the presser paddle 13a. Then, the feed of the roving is stopped and in this state, the new bobbin 16b and flier are rotated at the same speed for a while to bring the presser paddle 13a into contact with the new bobbin 16a by the centrifugal force of the pressure 13 caused by the flier rotation and press the sliver end to the new bobbin, then, the usual operation is started.

Description

[Detailed description of the invention] Technical division The present invention relates to a method for automatically winding roving in a roving machine, and particularly relates to a roving that enables the roving to be reliably wound around the bobbin when the roving is restarted after changing the tube. Automatic winding is about the method.

Conventional technology In conventional roving machines, when winding the end of the roving connected to the roller bart onto the empty water bottle newly placed on the bobbin rail after doffing with a full tube, the operator conventionally had to doff the empty water bottle one by one. The work involved winding the roving thread around the bobbin. Figures 1 and 2 show an example of the winding process. In Figure 1, the end of the roving that is one turn of the empty bobbin spun in the inching operation is crossed by the roving. Press the presser paddle 2 of the presser 2.
A is pressed against the empty bobbin 1. In addition, in the case of Fig. 2, the presser paddle 2a is at the operation start position.
A material that engages with the roving, such as a fluffy cloth 3, is wrapped around the circumferential surface of the empty bobbin 1 where it can come into contact with the bobbin, and when doffing, the cut roving is left hanging slightly from the presser paddle 2a. It is strongly pressed against the fluffy cloth 3 together with the presser paddle 2a. Even in the case of Izuwa, the operator must perform the above manual operations on each empty hoin 1 one by one, and the machine is restarted only when the operator is at all the spindles and has completed the work. Therefore, the work is very complicated for the operator, and
There was an inconvenience that the roving machine had to stop for a long time and its operating efficiency was very low.

In order to solve the above-mentioned problems, it is desired to automate the operation by self-helping one winding of the roving, but the automatic roving winding was attempted using the empty bobbin 1 with the fluff cloth 3 shown in Fig. 2. However, the results were incomplete. In other words, after doffing, even if the bobbin rail is raised until the fluff cloth 3 of the empty bobbin 1 is at the same height as the pressa paddle 2a and then the machine is started, more than half of the A phenomenon occurs in which the roving yarn becomes slack between the front roller and the flyer 1-tub due to the weight, and if the operation continues as it is, the slack yarn will be shaken off by the centrifugal force at the neck of the flyer, causing yarn breakage. Therefore, I had to immediately stop the aircraft again and turn off the slack-correcting device. The reason why the middle thread sag occurs is that the presabaddle 2a does not move smoothly to the empty bobbin 1 side immediately after startup, and even if it does, the presabaddle 21L does not move smoothly to the empty bobbin 1 side.
This is because the contact pressing force is weak and the operation proceeds without the end of the roving being sufficiently pressed against the fluffy fabric 3, which tends to delay winding.

Purpose This invention was made in order to eliminate the above-mentioned conventional defects, and its purpose is to make it possible to reliably press the roving end onto the empty bobbin and wind it up at the time of restart after tube change. It is an object of the present invention to provide a method for automatically winding roving yarn in a roving machine, which does not cause the phenomenon that the roving yarn becomes slack between the front roller and the flyer top even if the contact of the first paddle with the empty bobbin is delayed. .

Embodiments Hereinafter, the present invention will be embodied in a roving frame using an L section support flyer, and an embodiment will be described with reference to FIGS. 3 and 4.

First, to explain the configuration of the roving machine, Fig. 3 (1) to (V)
As shown in FIG. 2, a flyer guide leg 12 is provided projecting from the lower central end of a flyer 11 whose upper portion is rotatably supported by a support rail 10.

A presser 13 having a presser paddle 13a at its tip is rotatably equipped at the lower end of one arm of the flyer 11, and the roving spun from the front roller 14 is not placed on the bobbin rail 15. It is designed to wrap around the bobbin 16 that is being rotated.
A fluffy cloth 17 that engages with the roving is wound around the upper part of the yarn 6.

Next, the driving section will be explained with reference to FIG. The rotation of the motor 21 is transmitted to the main drive shaft 25 via the boots 1) 22, 23 and a belt 24 suspended between them. The fryer 11 is fixed to one end of the main drive shaft 25 and is driven by a timing pulley 26, a timing bar 28 (shown by a chain line), a timing pulley 27, an intermediate shaft 29, and spiral gears 30 and 31 that mesh with each other. It's starting to look like this. The front 1-o-ra 14 is a roller driven by a spur gear 32 fixed to the main drive shaft 25 via lower gear trains 32 to 33, middle gear trains 36 to 37, and upper gear trains 38 to 39. The fourth gear 33 of the lower gear train and the first gear 36 of the middle gear train, which rotate together with the shaft 40, are fitted onto an intermediate shaft 34 that connects both gear trains. The gear 36 is fixed to the intermediate shaft 34, but the gear 33 is not loosely fitted to the intermediate shaft 34, and can be engaged and disengaged with a coaxial electric clutch 35 that is provided in a shielded manner from the gear 33. The rotation of the main drive shaft 25 is configured to be transmitted to the intermediate shaft 34, that is, to the subsequent middle and upper stage gear trains, or to be interrupted.

Next, to explain the E section mechanism of the bobbin 16, a cone drum 42 is fixed to the other end of the intermediate shaft 41 to which the 3rd νI (37) of the middle stage gear train is fixed, and a corresponding cone drum 43 with a reverse slope A belt 44 is horizontally movably hung between the cone drum 43 and a transmission mechanism 45.The cone drum 43 rotates from its shaft 46 through gears 47, 48 and the preceding gear train 49-50. The signal is transmitted to an external gear 50 of a composite gear loosely fitted to the main drive shaft 25 on one side of a differential device 51 linked to the main drive shaft 25.This differential device 5
1 has an arm 52 fixed to the main drive shaft 25 at its center, and planetary gears 56 and 57 are respectively fixed to both ends of an intermediate shaft 53 passing through the tip of the arm 52.
meshes with the internal gear of the composite gear, that is, the sun gear 54, and the intermediate gear 55. Although not shown, the intermediate gear 55 is pivotally supported by a part of the arm 52.
The other planetary gear 57 meshes with an internal large gear 58 that is loosely fitted to the main drive shaft 25 on the other side of the differential device 51.
A gear 59 is combined with the internal tooth large wheel 58. The rotation of the gear 59 is transmitted to the intermediate shaft 6 through the rear gear train 59 to 60.
1, and the bobbin 16 is further driven via the helical gears 62 and 63.

Therefore, in this device, when the motor is driven with the clutch 35 disengaged, the rotation of the main drive shaft 25 is not transmitted to the front roller 14 and the cone drum transmission mechanism 45, and the flyer 11 and bobbin 16 rotate at the same time. It is designed to rotate at a high speed.

Next, the automatic winding method of the present invention will be explained. When the machine is stopped by a full tube command as shown in FIG. 3(1), the hobbin rail 15 is lowered to a position where the upper end of the full bobbin 16a is separated from the flyer guide leg 12 as shown in FIG. 3(1). Ru.

In this case, the roving connected between the presser 13 and the roving layer of the full bobbin 18a is cut off at -] as the hobbin rail 15 descends, and the roving end is suspended several centimeters from the presser paddle 13a. Become. Fibers with low roving strength, such as cotton, are cut naturally at the above-mentioned positions by lowering the bobbin rail 15, but in the case of synthetic fibers, which have long fibers and high roving strength, they are not cut at the above-mentioned positions and are cut by the front roller 14. It often breaks between the flyer top 18 and the flyer top 18. However, even in the case of fibers with high roving strength, the front roller 14
The flyer 11 and full bobbin 16) L are rotated for a very short time at the same rotation speed while the roving from the roving is stopped.
By giving the roving between the front roller 14 and the flyer top 18 a twist stronger than that given to the roving during normal spinning, and then lowering the hobbin rail 15, the roving will be a few centimeters from the presser paddle 13il. It is cut at the position. In this state, the bobbin 16 is filled by hand or machine.
Doff +L and attach empty bobbin 1 as shown in Figure 3 (F).
61), as shown in FIG.
Raise 5. At this time, the presser paddle 13a is opened to a position where it contacts the outer surface of the full bobbin 16a.

Next, the machine is restarted with the clutch 35 disengaged.

As mentioned above, when operating with the clutch 35 disengaged, the roving is not sent out from the front roller 14, the cone drums 42 and 43 are not rotated, and the flyer 1
1 and the empty bobbin 1611 are rotated at the same speed, the roving is not winded in any way, and the roving is twisted between the front roller 14 and the flyer top 18. The presser 13 can be moved to the bobbin side by centrifugal force based on the rotation of the flyer 11, so when the machine is restarted, the presser paddle 13 as shown in FIG. Next, when the pred paddle 131k presses the end of the roving against the fluff cloth 17 and inserts the cloth thread 35 into normal operation, the front roller 14 is rotated to start sending out the roving, and at the same time, the corn drano, 42
．． 43 is rotated, the empty bobbin 1611 is rotated faster than the rotational speed of the flyer 11, and winding of the roving is started.The time when the clutch 35 is disengaged is long and short, that is, the Brera Sabador 13a is at the full bobbin position. empty bobbin 16
11 is sufficient.

Normally, the operation of the roving frame is as shown in Figure 5.
However, if the startup is very slow, the presser 13
The centrifugal force acting on the bobbin is also small, and there is a delay in the contact of the Brera Sabador 13a with the empty bobbin 161). However, in the method of this invention, feeding of the roving is stopped until the Brera Sabador 13a comes into contact with the empty bobbin 16b.
Unlike the conventional method, there is no possibility that the roving becomes slack between the front roller 14 and the flyer top 1B and causes breakage of the roving.

Moreover, the higher the number of rotations of the flyer 11 until the Brera Sabador 13FL contacts the empty bobbin 161J, the more the front roller 14 and the flyer!・Since there are more twists between the knobs 18 than usual, Brera Sabador 111 is used as empty bobbin 1.
61) is desirable to be activated in such a way that contact is made as soon as possible. However, there is no problem because the first layer of roving wound around the bobbin is not used in the spinning machine in the subsequent process, but is instead used as recycled cotton. 1611 does not have to be strictly the same rotation, but it is sufficient to have a related speed that can only twist the roving without winding it, that is, substantially the same speed.

Effects As detailed above, this invention has the advantage of rotating the empty bobbin and the flyer at almost the same number of revolutions with the feeding of the roving stopped when restarting after changing the tube. The Brera Sabador is brought into contact with the empty bobbin by the centrifugal force of the pretusa based on this, and the roving end is pressed against the empty bobbin. After that, normal operation begins, so that the roving end can be securely pressed against the empty bobbin and wound. Moreover, even if the Brera Sabador is delayed in contacting the empty bobbin, unlike the conventional method, the roving does not slacken between the front roller and the flyer top, so there is no problem in starting normal operation and the roving Automatic winding has the excellent effect of making it possible to drive.

[Brief explanation of the drawing]

Figure 1.2 is a perspective view of the main part showing the conventional roving winding method, Figures 8 (1) to 3 (Y) are side views showing the operating sequence from the full tube to the next winding, and Figure 4 The figure is a perspective view of the drive section of a roving frame to which this invention is applied, and FIG. 5 shows an operating curve due to cushion activation. 6. It is M. Fryer 11, presser 13, presser/dol 13a
, 7clnh roller 14, empty bobby: z16b. Fleece cloth 17°

Claims (1)

[Claims] 1. When restarting after changing the tube, the empty bobbin and the flyer are rotated for a very short period of time at almost the same rotational speed while the feeding of the roving is stopped, and the presser paddle is moved to the empty bobbin by the centrifugal force of the presser based on the rotation of the flyer. A method for automatically winding roving in a roving machine, which is characterized in that the end of the roving is pressed against an empty bobbin by contacting with the bobbin, and then normal operation begins.