JPH04286574A - Filament supply method for automatic spool winder and device therefor - Google Patents

Abstract

PURPOSE:To improve work efficiency and enable the unmanned operation of a device by disposing numerous bobbins with the axes thereof directed to thread paths, and swelling filament outward by rewinding centrifugal force generated by the specified pull-out speed, as well as linking the terminuses with the starting ends of the wound filament successively to pull it out. CONSTITUTION:The starting end, where filament 12 is pulled out first, of a bobbin 13 is wound around a pulley 5 through a thread guide 6, and the terminus is bound to the starting end of the filament wound around a second bobbin adjacent to the bobbin 13 or connected by a binding part 14. The filament terminus of the second bobbin is further connected to the filament starting end of a third bobbin in the same way. Also in bobbins in the lower stage, connection is performed successively in the same way so that the whole filament is linked into one. In this state, an automatic spool winder is driven to rotate a motor 4 and a pulley 5 for the pull-out of the filament 12. When the specified pull-out speed is provided at this time, centrifugal force works on the filament itself so as to enable speedy rewinding with an outward swollen arc described around an axis, and thus the filament can be pulled out without rotating the bobbins themselves.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is a bunzenmaki used in a knitting machine, in other words, yarn is supplied from a bobbin on which raw yarn is wound around a spool, and the required amount of yarn is automatically wound. The present invention relates to a method and device for continuously supplying yarn, which is applied to or used in an automatic spool winder for storage.

0002

2. Description of the Related Art As an example of an automatic spool winder of this type, a structure disclosed in, for example, Japanese Unexamined Patent Publication No. 2-193872 is well known. In this conventional example, a mechanism is provided for automatically transferring the empty spool to the winding section and a means for automatically transferring the full spool to the storage section, and a mechanism for winding the tip of the yarn around the empty spool in the winding section; It is equipped with a cutting mechanism that cuts the yarn when it has been wound a predetermined amount, and the yarn is automatically wound and stored around the spool.

0003

[Problems to be Solved by the Invention] In the conventional example, the yarn is automatically wound and stored around the spool, but the yarn wound around the spool is pulled out from the bobbin, and the drawer is not operated. This is done by rotating the bobbin in the unwinding direction. There is a limit to the amount of yarn that can be wound around one bobbin, and the amount of yarn that can be supplied from one bobbin is at most enough to fully wind five to six spools.

In other words, although the conventional example described above is an automatic spool winder, yarn feeding from the bobbin is not automatic, and when one bobbin is empty, the drive of the device is stopped and the yarn being wound is stopped. It is necessary to tie the rear end of the thread to the tip of the thread of a new bobbin each time and feed the yarn sequentially, and this involves replacing the bobbin and tying the thread, which only reduces work efficiency. Although it is a simple task, one worker must constantly monitor each piece of equipment.

[0005] Therefore, in the conventional example, there are problems that must be solved in terms of improving work efficiency and making the device unmanned.

[0006]

[Means for Solving the Problems] As a specific means for solving the problems of the conventional example, the present invention provides a method in which a plurality of bobbins are set radially with the axis of the bobbin oriented toward the thread guide, and the first thread to be pulled out is set. The terminal end and the starting end of the yarn are sequentially connected to adjacent bobbins except for the starting end, and all the yarns wound on the set plural bobbins are connected to one continuous yarn.
A method for supplying yarn for an automatic spool winder, characterized in that the yarn is continuously drawn out while drawing a conical or cone-shaped arc, using the centrifugal force of unwinding due to the speed at which the yarn is pulled out, without rotating the bobbin. A device main body is formed by a plurality of vertical frames and horizontal frames, a tension bar is arranged across the center of the device main body, a yarn guide is attached to the tension bar, and a yarn guide is installed near the top of the device body. and a bobbin holding means consisting of a plurality of arms arranged radially below the thread guide and a bobbin receiving pin attached to the arms, the bobbin receiving pin being oriented toward the thread guide. The present invention provides a yarn supplying device for an automatic spool winder constructed according to the present invention.

Furthermore, at least a first stage tension bar and a second stage tension bar are provided, first and second thread guides are attached to each tension bar, and a bobbin holding means is provided for each thread guide. A plurality of bobbins arranged in a radial manner are arranged in upper and lower stages, and the threads of all the bobbins are connected and fed into a single thread. The present invention is equipped with a yarn pulling means, a yarn path guide, a bobbin holding means, and a detection sensor for detecting the amount of yarn remaining on the bobbin.

[0008]

[Function] The present invention has a large number of bobbins arranged radially so that their axes are oriented with respect to the yarn guide, so that the yarn is unwound by centrifugal force caused by the unwinding speed without rotating the bobbins. It can be inflated outward and pulled out, and the threads wound on the numerous bobbins arranged can be sequentially connected from the end to the start end, making it possible to continuously draw out all the threads into one thread. This is what I did.

[0009]

[Embodiment] Next, the present invention will be explained in more detail with reference to the illustrated embodiment. Reference numeral 1 denotes a main body of the device, in which a plurality of vertical frames 2 and a plurality of horizontal frames 3 are assembled in a tower shape. .

[0010] In the illustrated embodiment, two threads can be fed at the same time through different routes, and the same structure is distributed to the left and right. One of the yarn supply routes will be explained, and the configuration of the other yarn supply route will be given the same reference numeral and the details thereof will be omitted.

Among the horizontal frames assembled in a tower shape, the frame located in the center is used as a so-called tension bar, and a thread is attached near the first tension bar 3a at the top of the tension bar. A pull-out means is provided. This drawing means includes a motor 4 and a motor 4.
A first thread guide 6 is disposed corresponding to the pulley 5.

[0012] The second stage tension bar 3b has a first
A bobbin holding means 7 is provided, and the bobbin holding means includes:
A plurality of (six) arms 8 are arranged radially, and a bobbin receiving pin 9 is attached in an upright state near the tip of each arm. The arm 8 is attached to be inclined at a predetermined angle so that each of the bobbin receiving pins 9 points accurately toward the thread guide 6.

At the center of the first bobbin holding means 7,
A second thread path guide 6a is provided, which thread path guide is provided passing through said second stage tension bar 3b, so that the first bobbin holding means 7 is substantially connected to the second thread path guide 6.
It will be attached to the second stage tension bar 3b via a. In particular, the second yarn path guide 6a is installed so as to substantially coincide with the first yarn path guide 6 in a vertical position.

A second bobbin holding means 7a having the same structure as the first bobbin holding means 7 is disposed on the horizontal frame 3c located at the lower center. It goes without saying that this second bobbin holding means 7a also has a plurality of arms 8a and a bobbin receiving pin 9a, and the bobbin receiving pin 9a is oriented toward the second thread path guide 6a. are also the same.

The second bobbin holding means 7a is attached by, for example, bolts 10, etc., but when the third bobbin holding means is further attached to the lower part, it can be attached by the same means as the first bobbin holding means. Just install it.

[0016] Also, the second stage tension bar 3b and the horizontal frame 3 are attached with the first and second bobbin holding means.
c is movable up and down, and the distance from the yarn guide is adjusted depending on the thickness of the yarn to be handled and the shape of the bobbin.

A detection sensor 11 for monitoring one bobbin is disposed near the second bobbin holding means 7a disposed at the lower stage. The detection sensor 11 is, for example, a phototube, which detects the amount of yarn wound around the bobbin, and when the amount of yarn falls below a certain amount, it issues a signal to stop driving the device. If so, it is sufficient.

[0018] The continuous yarn feeding device configured as described above is as follows:
It is installed adjacent to an automatic spool winder, and a bobbin 13 wound with raw yarn or yarn 12 is set on each bobbin receiving pin 9, 9a, respectively. In this case, since the first and second bobbin holding means 7, 7a are arranged in two stages, upper and lower, a total of 12 bobbins 13 are set. The shaft center of each bobbin set in this way will accurately point to the thread guide along the bobbin receiving pin.

Each of these set bobbins 13 is shown in FIG.
As shown in , the starting end of the bobbin 13 from which the yarn 12 is first drawn out passes through the yarn guide 6 and is wound around the pulley 5.
The terminal end of the yarn 12 is connected to the starting end of the yarn wound on the adjacent second bobbin by a binding or adhesive part 14, and the terminal end of the yarn wound on the second bobbin is further connected to the starting end of the yarn wound on the second bobbin. Similar to the starting end of the yarn wound on the third bobbin, it is connected by a binding or adhesive part 14.

In this way, the terminal ends and starting ends of the yarns of the adjacent bobbins are successively connected, and after the connection of the yarns of the bobbins set in the upper bobbin holding means 7 is completed, the lower bobbin holding means 7a is connected. Even for the same number of bobbins set in , the starting end of the yarn of the bobbin from which the yarn 12 is pulled out first is pulled out upward through the second yarn path guide 6a,
The ends of the upper bobbins to which the terminal ends of the threads are not connected are connected by the binding or adhesive part 14 in the same manner as described above.

[0021] In the lower bobbin as well, by sequentially connecting the terminal ends and starting ends of the yarns of adjacent yarns in the same manner as described above, all the yarns wound on the 12 bobbins are connected into one thread. become.

In this state, for example, an automatic spool winder is driven, and the yarn 12 is pulled out by rotating the motor 4 and spool 5. In this case, if a pulling speed of about 300 to 400 m per minute is applied, depending on the capacity of the automatic spool winder, a centrifugal force for unwinding will act on the yarn itself, and the yarn path will be reversed as shown in Figure 3. A rapid unwinding phenomenon occurs by drawing a regular cone-shaped or cone-shaped arc that bulges outward around the axis A connecting the guide 6 and the bobbin receiving pin 9, and the thread is unwound without rotating the bobbin itself. This allows for sequential withdrawal of funds.

[0023] Therefore, a plurality of bobbins are arranged,
By sequentially connecting the terminal ends and starting ends of adjacent bobbins to form a single thread, the threads of the set bobbin are continuously unwound one after another. For example, if the length of thread wound around one bobbin is approximately 2 km, then 12
This means that 24 km of yarn can be continuously supplied, and there is no need for workers to supervise the process. For example, the yarn can be automatically wound onto the spool unmanned at night.

In particular, although a large number of bobbins are set,
Since both are set under almost the same conditions with respect to the thread guide, that is, the axis of the bobbin is accurately oriented toward the thread guide, the bobbin at any location can be shaped into the regular conical or cone shape described above. A rapid unwinding phenomenon occurs in an arc, and there is no problem with continuous withdrawal.

Furthermore, by providing the detection sensor 11, when the threads that have been sequentially drawn out are all pulled out from the last bobbin, all of the threads are removed from the thread path in the thread guide, pulley, and automatic spool winder. The next time you change the bobbin, you will have to rethread all the passages from the beginning, which is cumbersome. By stopping the bobbin, the remaining yarn is simply tied to the newly set bobbin yarn in the next changeover operation, which further improves work efficiency.

[0026]

Effects of the Invention The present invention provides a method for supplying yarn for an automatic spool winder as a specific means for solving the problems of the conventional example. Set the threads individually, and connect the terminal ends and starting ends of the threads sequentially between adjacent bobbins except for the starting end of the thread to be pulled out first, and connect all the threads wound on the set multiple bobbins in a continuous manner. By connecting it to a single thread and drawing a conical or cone-shaped arc using the centrifugal force of unwinding the thread without rotating the bobbin, It is possible to supply each bobbin continuously without stopping the device and in an unmanned state, which has the excellent effect of significantly improving work efficiency.

Further, the yarn feeding device for an automatic spool winder according to the present invention includes a device main body formed by a plurality of vertical frames and a horizontal frame, and a tension bar arranged across the center of the device main body, A thread guide is attached to the tension bar, and a thread pulling means is provided near the upper part of the tension bar, and a bobbin holding device includes a plurality of arms arranged radially below the thread guide and a bobbin receiving pin attached to the arms. By providing means and configuring the bobbin receiving pin to point toward the yarn path guide, it is possible to set a large number of bobbins at once, and to sequentially adjust the terminal end and starting end of the yarn wound on the set bobbins. It has the excellent effect of being able to connect threads into a single thread and continuously supply threads from all bobbins.

Furthermore, at least a first stage tension bar and a second stage tension bar are provided, first and second thread guides are attached to each tension bar, and a bobbin holding means is provided for each thread guide. A plurality of bobbins arranged in a radial manner are arranged in upper and lower stages, and the threads of all the bobbins are connected and fed into one thread, and the main body of the apparatus is provided with at least one thread. By providing two rows of thread pulling means, thread guide, and bobbin holding means, it is possible to set more bobbins, thereby extending continuous operation time and further improving work efficiency. I can do it.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram schematically showing a yarn supply device for an automatic spool winder according to the present invention.

FIG. 2 is a plan view schematically showing a bobbin holding means of the yarn supply device for an automatic spool winder according to the present invention.

FIG. 3 is an explanatory diagram showing a conical or cone-shaped arc produced by the centrifugal force of unwinding with a predetermined withdrawal speed utilized in the method of the present invention.

[Explanation of symbols]

1　Device body 2 Vertical frame 3 Horizontal frame 3a 1st stage tension bar 3b 2nd stage tension bar 3c Lower horizontal frame 4 Motor 5 Pulley 6 First thread guide 6a Second thread guide 7 First bobbin holding means 7a Second bobbin holding means 8,8a Arm 9, 9a Bobbin receiving pin 10 bolts 11 Detection sensor 12 Raw yarn or yarn 13 Bobbin 14 Binding or adhesive part

Claims (7)

[Claims] Claim 1: A plurality of bobbins are set radially with their axes facing the thread guide, and the terminal ends and starting ends of the threads are sequentially connected between adjacent bobbins, except for the starting end of the thread that is pulled out first. Then, all the threads wound on the set of multiple bobbins are connected into one continuous thread, and the centrifugal force of unwinding due to the thread withdrawal speed is used without rotating the bobbin. A method for supplying yarn for an automatic spool winder, characterized by continuously drawing out the yarn while drawing a conical or cone-shaped arc. 2. The automatic spool winder according to claim 1, wherein a plurality of radially set bobbins are arranged in upper and lower stages, and the threads of all the bobbins are connected to one thread. yarn supply method. 3. A device main body is formed by a plurality of vertical frames and horizontal frames, a tension bar is disposed across the center of the device main body, a thread guide is attached to the tension bar, and a thread guide is attached to the tension bar near the upper portion thereof. A thread pulling means is provided in the thread guide, and a bobbin holding means is provided which includes a plurality of arms arranged radially below the thread guide and a bobbin receiving pin attached to the arms, and the bobbin receiving pin holds the thread guide. A yarn feeding device for an automatic spool winder configured to direct the yarn. 4. At least a first stage tension bar and a second stage tension bar are provided, first and second thread guides are attached to each tension bar, and a bobbin holding means is provided for each thread guide, respectively. A yarn feeding device for an automatic spool winder according to claim 3. 5. The yarn feeding device for an automatic spool winder according to claim 3, wherein the device main body is provided with at least two rows of yarn pulling means, a yarn path guide, and a bobbin holding means. 6. The yarn supply device for an automatic spool winder according to claim 3, wherein the bobbin holding means or the tension bar is movable up and down. 7. The yarn supply device for an automatic spool winder according to claim 3, further comprising a detection sensor for detecting the amount of yarn remaining on the bobbin.