JP2010137987A - Yarn winder preventing bunch formation at innermost and outermost layers and yarn transferring method using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a yarn winder and a method for preventing a bunch concentration phenomenon in the outermost layer of a full bobbin and a bunch concentration phenomenon in the innermost layer of an empty bobbin. <P>SOLUTION: The yarn winder includes: a rotation drum; bobbin holders rotatably provided at the upper and lower parts of the rotation drum, and loaded with bobbins on one end formed with a transfer tail groove; a traverse roller section winding yarn on the upper bobbin with a predetermined traverse width; and a friction roller section for applying a constant pressure to the yarn in contact with the upper bobbin. The yarn winder has: a shift guide for separating the yarn path from a traverse position; a transfer tail forming section for guiding the yarn to the transfer tail groove of the bobbin when transferring and cutting the yarn; and a swing guide section for guiding the yarn path to the transfer tail groove side of the bobbin when transferring and cutting the yarn. The bobbin is formed with a slot groove orienting inward for cutting the yarn. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a yarn winding device that can prevent bunch formation of the innermost and outer layers and a yarn moving method using the yarn winding device.

  FIG. 1a shows a yarn winding device according to the prior art and a yarn movement and yarn cutting method using the yarn winding device, and FIG. 1b shows a cake in which bunch concentration occurs in the innermost and outer layers.

  As shown in FIG. 1a, a conventional yarn winding device 100 ′ includes a rotatable rotating drum 110 ′, bobbin holders 111 ′ and 112 ′ rotatably provided on upper and lower portions of the rotating drum 110 ′, and the rotating A traverse roller portion 120 ′ positioned above the drum 110 ′ and wound around the bobbin mounted on the bobbin holders 111 ′ and 112 ′ to a predetermined width, and a friction that contacts the bobbin and provides a predetermined pressure to the yarn It consists of a roller part 130 '. Here, the bobbin is also referred to as a branch pipe, and a state in which a thread is wound around the bobbin is also referred to as a cake.

  In such a yarn winding device 100 ′, for example, when the upper bobbin becomes the full bobbin 113 ′, the rotary drum 110 ′ rotates at a predetermined angle, and the positions of the full bobbin 113 ′ and the empty bobbin 114 ′ change from each other. That is, as shown in FIG. 1a, the rotating drum 110 ′ rotates and the empty bobbin 114 ′ is positioned at the upper portion, and the full bobbin 113 ′ is positioned at the lower portion.

  In this state, the yarn (Y) is moved to the upper empty bobbin 114 ′ side and cut at the same time. For this reason, the traverse roller portion 120 ′ and the friction roller portion 130 ′ rise from the rotating drum 110 ′ to a predetermined height, and then the lower full bobbin 113 ′ stops rotating. Then, since the upper empty bobbin 114 ′ continues to rotate, the yarn (Y) is moved to the upper empty bobbin 114 ′ and at the same time, the yarn is forced between the full bobbin 113 ′ and the empty bobbin 114 ′. Disconnected. However, the conventional yarn winding device and the yarn moving and cutting method using the conventional yarn winding device have a problem in that bunches are formed on the outermost side of the full bobbin when the yarn is moved and cut. That is, as shown in FIG. 1b, an outermost side bunch (SB) is generated in which yarns are intensively wound on the outermost side of the cake (C) formed on the full bobbin.

  The problem is that when the yarn is moved and cut, the yarn between the full bobbin 113 'and the empty bobbin 114' is not moved and cut immediately, but even after the yarn is moved to the move and cut position, This is probably because the yarn is moved and cut only after 113 ′ and the empty bobbin 114 ′ are further rotated a plurality of times. In particular, the side bunch (SB) formed on the outermost layer of the cake (C) formed on a full bobbin has to be removed manually by a person before shipping the product, thus reducing the productivity of yarn winding. Let

  Further, in the conventional yarn winding device and the yarn moving and cutting method using the yarn winding device, the traverse roller unit 120 ′ and the friction roller unit 130 ′ are raised from the rotary drum 110 ′ by a predetermined height when the yarn is moved and cut. There is a problem that bunches are formed in the innermost layer of the empty bobbin that starts to wind up anew. That is, as shown in FIG. 1b, a middle bunch (MB) is generated in the innermost layer where the yarn is intensively wound around the center of the cake (C) formed by the empty bobbin.

  This problem is considered to occur because the traverse roller portion 120 ′ and the friction roller portion 130 ′ rise from the rotary drum 110 ′ to a predetermined height during yarn movement and cutting. That is, since the distance from the empty bobbin 114 ′ to the traverse roller portion 120 ′ is relatively long, the yarn is intensively wound around the central portion of the bobbin at the initial stage of winding. If a middle bunch occurs in the bobbin in this way, a difference in yarn tension may occur during unwinding to produce various fabrics, and problems may occur during subsequent processes such as dyeing. The problem of running out can occur.

  The present invention is to overcome the above-described conventional problems, and an object of the present invention is to quickly move and cut the yarn according to the relationship between the yarn path and the bobbin when moving and cutting the yarn. An object of the present invention is to provide a yarn winding device and a yarn moving method using the same, which can be accurately performed and can prevent the bunch concentration phenomenon of the outermost layer in the full bobbin that has been wound.

  Another object of the present invention is that the yarn can be cut at the same time as the yarn is moved without raising the traverse roller portion and the friction roller portion. Another object of the present invention is to provide a yarn moving method using the same.

  Still another object of the present invention is that the yarn is cut according to the relationship between the yarn path and the bobbin, so that the yarn characteristics such as yarn tension or denier, the state of the transfer tail groove of the bobbin, It is an object of the present invention to provide a yarn winding device and a yarn moving method using the yarn winding device that can cut the yarn uniformly regardless of the case.

  In order to achieve the above object, the present invention is provided with a rotating drum and a plurality of bobbins that are rotatably provided on the upper and lower portions of the rotating drum and in which a transfer tail groove is formed at one end. A bobbin holder, a traverse roller unit positioned above the rotating drum and allowing the yarn to be wound on the upper bobbin with a predetermined traverse width, and contacting the upper bobbin to provide a constant pressure to the yarn In the yarn winding device comprising the friction roller portion, a shift guide provided at a side portion of the traverse roller portion, for separating the yarn path from the traverse position, and provided at an upper portion of the friction roller portion, Guides the yarn into the transfer tail groove of the bobbin during movement and cutting The bobbin further comprising: a transfer tail forming portion; and a swing guide portion provided on a side portion of the friction roller portion and guiding the yarn path toward the transfer tail groove of the bobbin when the yarn is moved and cut. The slot groove is further formed inward so that the yarn can be cut on one side of the transfer tail groove.

  The slot groove has, for example, a triangular shape whose width gradually decreases toward the inside of the bobbin.

  The slot groove has, for example, a triangular shape having different lengths on both sides.

  The shift guide is provided on a side portion of the traverse roller portion facing the friction roller portion, and the lower end rotates around the upper end at a constant angle clockwise when the yarn moves and cuts, and the yarn is removed from the traverse position. be able to.

  The transfer tail forming portion is slidable horizontally on the cover plate at the same time as being attached to the cover plate, a primary cylinder horizontally provided on the cover plate, and the primary cylinder. By providing in this way, a primary guide for guiding the yarn from the traverse position to the transfer tail groove of the bobbin, a secondary cylinder provided in a direction perpendicular to the primary guide, and at the same time as being attached to the secondary cylinder, And a secondary guide for returning the yarn from the transfer tail groove of the bobbin to the original traverse position by providing the primary guide so as to be slidable in the vertical direction.

  The primary guide includes a guide plate and a plurality of guide bars that extend to the lower end of the guide plate with a certain length in the lower direction and guide the yarn from the traverse position to the transfer tail groove of the bobbin.

  The secondary guide is composed of a guide plate and a plurality of guide bars that extend to the lower end of the guide plate with a certain length in the lower direction and return the yarn from the transfer tail groove of the bobbin to the traverse position.

  The primary guide is formed with a fixed projection, and the secondary guide is formed with a long hole that is fitted to the fixed projection and is movable in the vertical direction.

  The swing guide portion is a cylinder and a swing guide that is attached to the cylinder and rotates at a certain angle around a rotation axis and is positioned at the lower end of the upper empty bobbin to guide the yarn path until just before cutting. The swing guide is formed with a horizontal protrusion and a horizontal notch groove in the horizontal direction so as to guide the yarn in the horizontal direction on the transfer tail groove side.

  In order to achieve the above object, according to the method of the present invention, a bobbin having a slot groove is provided in each of the transfer tail groove on one side in the upper part and the lower part, and the bobbin provided in the upper part becomes a full bobbin. A yarn winding stage that winds up the yarn, a rotating stage in which the upper full bobbin is rotated downward and the lower empty bobbin is rotated upward when the bobbin provided at the upper part is full, and the lower full bobbin The thread between the upper bobbin and the upper bobbin is guided to one side, and the upper thread of the empty bobbin is separated from the traverse position and guided to the transfer tail groove of the empty bobbin. A yarn cutting step for moving and cutting, and a yarn returning step for returning the upper yarn of the empty bobbin to the original traverse position.

  As described above, according to the yarn winding device and the yarn moving method using the same according to the present invention, the yarn moving and cutting are performed quickly and accurately by the relationship between the yarn path and the bobbin when the yarn moves and cuts. This prevents the bunch from concentrating on the outermost layer of the fully bobbins that have been wound.

  Further, the yarn winding device and the yarn moving method using the same according to the present invention can cut the yarn at the same time as moving the yarn without raising the traverse roller portion and the friction roller portion. The bunch stops concentrating on.

  In addition, the present invention allows the yarn to be cut according to the relationship between the yarn path and the bobbin, so that the yarn does not depend on the yarn tension or denier characteristics and the bobbin transfer tail groove state. Can be cut evenly.

It is the schematic which shows the yarn winding device which concerns on a prior art, and the yarn movement and yarn cutting method by this. It is the schematic which shows the cake in which the bunch concentration of the innermost and outer layers occurred. It is the schematic which shows the yarn cutting method of the yarn winding device which concerns on this invention. It is the schematic which shows the cake which the bunch concentration of innermost and outer layers does not generate | occur | produce. It is the schematic which shows the yarn winding device which can prevent the bunch formation of the innermost and outer layers according to the present invention. It is the front view which expanded and showed the transfer tail formation part in the yarn winding device which can prevent bunch formation of the innermost and outer layers concerning the present invention. It is a side view which shows the swing guide part in the yarn winding device which can prevent the bunch formation of the innermost and outer layers according to the present invention. It is a top view which shows the bobbin (branch pipe) in the yarn winding apparatus which concerns on this invention. It is a top view which shows the state by which a thread | yarn is moved and cut | disconnected by the bobbin (branch pipe) in the yarn winding apparatus which concerns on this invention. It is a flowchart which shows the yarn moving method using the yarn winding apparatus which concerns on this invention. 9a to 9e are schematic views sequentially showing a yarn moving method using the yarn winding device according to the present invention. 9a to 9e are schematic views sequentially showing a yarn moving method using the yarn winding device according to the present invention. 9a to 9e are schematic views sequentially showing a yarn moving method using the yarn winding device according to the present invention. 9a to 9e are schematic views sequentially showing a yarn moving method using the yarn winding device according to the present invention. 9a to 9e are schematic views sequentially showing a yarn moving method using the yarn winding device according to the present invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings to such an extent that those skilled in the art can easily implement the present invention. However, the present invention is not limited to these embodiments.

  FIG. 2a is a schematic view showing a yarn cutting method of the yarn winding device according to the present invention, and FIG. 2b is a schematic view showing a cake in which no bunch concentration phenomenon occurs in the innermost layer and the outermost layer.

  As shown in FIG. 2a, the yarn cutting method of the yarn winding device 100 according to the present invention basically involves the yarn (Y) in a state where the traverse roller unit 120 and the friction roller unit 130 do not rise from the upper empty bobbin 114. The yarn (Y) is moved and cut according to the relationship between the path and the slot groove formed in the bobbin. By this method, as shown in FIG. 2b, bunch concentration does not occur in the center of the innermost layer in the cake (C) formed on the empty bobbin, and the cake (C) formed on the full bobbin is the most. The bunch concentration phenomenon of the outer layer does not occur. That is, the bunch concentration phenomenon has conventionally occurred in the innermost layer of the empty bobbin and the outermost layer of the full bobbin, but such a phenomenon does not occur in the present invention.

  Here, the process of moving and cutting the yarn according to the relationship between the path of the yarn (Y) and the slot groove formed in the bobbin will be described in more detail below.

  FIG. 3 is a schematic view showing a yarn winding device capable of preventing the innermost and outer layer bunch formation according to the present invention.

  As shown in FIG. 3, a yarn winding device 100 according to the present invention includes a rotatable rotating drum 110 and a bobbin holder 111 that is rotatably provided on an upper portion and a lower portion of the rotating drum 110 and has a plurality of bobbins attached thereto. 112, a traverse roller portion 120 positioned above the rotating drum 110 and wound around the upper bobbin with a certain traverse width, and a constant pressure on the yarn in contact with the upper bobbin. A friction roller part 130 for providing the thread, a shift guide 140 for separating the thread path from the traverse position, a transfer tail forming part 150 for guiding the thread into a transfer tail groove of the bobbin, and the thread path for the bobbin. And a swing guide portion 160 for guiding to the transfer tail groove side.

  The rotary drum 110 is attached to the frame 101 of the yarn winding device 100, and is engaged with a drive shaft of the motor (not shown), so that it can rotate in a predetermined direction. That is, when the bobbin inserted into the bobbin holders 111 and 112 reaches the full bobbin 113, the rotary drum 110 can change the positions of the full bobbin 113 and the empty bobbin 114 by rotating about 180 ° or 270 °. In the drawing, the full bobbin 113 is located at the bottom and the empty bobbin 114 is located at the top.

  The bobbin holders 111 and 112 are respectively provided with a certain length on the upper and lower parts of the rotating drum 110, and are engaged with the drive shafts of the motors (not shown). It can rotate in a predetermined direction. That is, the bobbin holders 111 and 112 can wind the yarn around the bobbin attached thereto by rotating at a predetermined speed. Of course, a plurality of bobbins are mounted on such bobbin holders 111 and 112 at regular intervals.

  The traverse roller unit 120 is provided in the upper part of the rotary drum 110, and this serves to allow the traverse roller 121 to traverse the yarn by a predetermined width and supply it to the lower bobbin.

  The friction roller unit 130 is provided directly above the rotating drum 110. This is because the friction roller 131 is in direct contact with the upper bobbin to provide a constant pressure to the bobbin so that the bobbin is tightly threaded. It plays a role to be wound up.

  The shift guide 140 is provided on the side of the traverse roller unit 120 that faces the friction roller unit 130. The shift guide 140 has an upper end rotatably attached to the side portion of the traverse roller portion 120 at a certain angle, and a lower end that rotates around the upper end at a certain angle clockwise when the yarn moves and cuts. It moves to move the yarn away from the traverse position. That is, when the bobbin located at the upper part of the rotating drum 110 becomes the full bobbin 113, the rotating drum 110 rotates about 180 ° so that the upper full bobbin 113 is located at the lower part and the lower empty bobbin 114 is located at the upper part. Will be located. Subsequently, the yarn is moved from the lower full bobbin 113 to the upper empty bobbin 114, and the yarn between the full bobbin 113 and the empty bobbin 114 is forcibly cut. The shift guide 140 operates to move and cut the yarn, and the shift guide 140 first disengages the traverse position of the yarn. Of course, for this purpose, the shift guide 140 is provided with a cylinder or a motor (not shown). Further, the transfer tail forming part 150 and the swing guide part 160 described below also operate together for moving and cutting the yarn as described above.

  The transfer tail forming part 150 is provided on the friction roller part 130. However, the installation position of the transfer tail forming portion 150 is not limited in the present invention. The transfer tail forming section 150 moves the yarn, which is out of the traverse position by the shift guide 140, to the transfer tail groove of the bobbin, so that the yarn moves to the upper empty bobbin 114. The thread between the bobbin 114 is cut.

  The swing guide part 160 is provided on one side of the friction roller part 130. However, the installation position of the swing guide portion 160 is not limited in the present invention. The swing guide portion 160 serves to guide the yarn path between the full bobbin 113 and the empty bobbin 114 to the transfer tail groove side of the empty bobbin 114. For this purpose, the swing guide part 160 is attached to the cylinder 161 of the yarn winding device 100 and the cylinder 161, and rotates at a certain angle around the rotation shaft 162 so that the upper empty space By being positioned at the lower end of the bobbin 114, the swing guide 163 guides the yarn path until just before cutting.

  FIG. 4 is an enlarged front view showing a transfer tail forming portion in the yarn winding device that can prevent the formation of the bunch in the innermost and outer layers according to the present invention.

  As shown in FIG. 4, the transfer tail forming unit 150 includes a cover plate 151, a primary cylinder 152, a primary guide 153, a secondary cylinder 155, and a secondary guide 156.

  The cover plate 151 has a shape that substantially covers the upper portion of the friction roller portion 130 in the yarn winding device 100.

  The primary cylinder 152 is provided in the horizontal direction (length direction) on the cover plate 151. The primary cylinder 152 is any one selected from a pneumatic cylinder, a hydraulic cylinder, and an equivalent thereof, and the type thereof is not limited here.

  The primary guide 153 is attached to the primary cylinder 152 and is slidable on the cover plate 151 in the horizontal direction. For example, the cover plate 151 is provided with a rail (not shown) in the horizontal direction, and the primary guide 153 is provided on the rail so that the primary guide 153 can slide. Can slide horizontally.

  The primary guide 153 is attached to a horizontal rail and can be slidable, and a plurality of guide bars that guide the yarn by extending to the lower end of the guide plate 154 at a certain length in the lower direction. 154a. Of course, the plurality of guide bars 154a guide the yarn wound around each bobbin from the traverse position to the transfer tail groove of the bobbin.

  The secondary cylinder 155 is provided in a direction perpendicular to the primary guide 153 (width direction). The secondary cylinder 155 is any one selected from a pneumatic cylinder, a hydraulic cylinder, and an equivalent thereof, and the type thereof is not limited here.

  The secondary guide 156 is attached to the secondary cylinder 155 and is slidable in the vertical direction with respect to the primary guide 153. For example, a fixed protrusion 158a is formed at a predetermined distance from the primary guide 153, and the secondary guide 156 is a long hole that is fitted to the fixed protrusion 158a and guides the fixed protrusion 158a in the vertical direction. 158b is formed. The secondary guide 156 can be slid in the vertical direction by the secondary cylinder 155, but slides in the horizontal direction together with the horizontal movement of the primary guide 153.

  The secondary guide 156 is formed with a long hole 158b and is attached to the fixed projection 158a so as to be slidable. The secondary guide 156 extends to the lower end of the guide plate 157 at a certain length to guide the yarn. And a plurality of guide bars 157a. Of course, the plurality of guide bars 157a returns the yarn to the traverse position from the transfer tail groove formed in the bobbin.

  Here, the primary guide 152 has been described using a guide rail structure as an example, and the secondary guide 156 has been described using a long hole structure as an example. However, the present invention is not limited to such a structure. That is, the primary guide 152 may have a long hole structure, and the secondary guide 156 may have a guide rail structure. Further, the primary guide 152 and the secondary guide 156 may adopt a structure that moves in the horizontal or vertical direction by adopting all the structures known so far.

  FIG. 5 is a side view showing a swing guide portion in the yarn winding device that can prevent the formation of the bunch in the innermost and outer layers according to the present invention.

  As shown in FIG. 5, the swing guide portion 160 includes a cylinder 161, a swing guide 163, and a bunch plate 166.

  The cylinder 161 is provided at the side of the friction roller unit 130, but the installation position is not limited by the present invention. The cylinder 161 is any one selected from a pneumatic cylinder, a hydraulic cylinder, and an equivalent thereof, and the type thereof is not limited here.

  The swing guide 163 has one side attached to the cylinder 161 and the other side attached to the rotary shaft 162, so that the swing guide 163 can be rotated at a predetermined angle around the rotary shaft 162 when the cylinder 161 is operated. ing. Actually, the swing guide 163 rotates at a predetermined angle around the rotation shaft 162 and is positioned at the lower end of the empty bobbin 114 positioned at the upper portion, thereby guiding the yarn path until just before the yarn is cut. To do. A horizontal notch groove 165 is formed below the swing guide 163 so as to guide the yarn in the horizontal direction at one end. That is, a horizontal protrusion 164 is formed below the swing guide 163 for guiding the yarn to the bobbin transfer tail groove as close as possible. The horizontal protrusion 164 has a shape further bent in the bobbin direction.

  FIG. 6 is a plan view showing a bobbin in the yarn winding device according to the present invention.

  As shown in FIG. 6, the bobbin 114 attached to the bobbin holder (for convenience of explanation, an empty bobbin is taken as an example) is formed with a substantially circular ring-shaped transfer tail groove 114a at one end so that the yarn can be moved. ing. Further, the transfer tail groove 114a is formed with a slot groove 114b for cutting the yarn, which is notched toward the inside of the bobbin. That is, the slot groove 114b is formed in a triangular shape with a width that gradually decreases toward the inside of the bobbin. More specifically, the slot groove 114b is formed in a triangular shape having different lengths on both sides and inclined in the lower direction.

  FIG. 7 is a plan view showing a state where the yarn is moved and cut by the bobbin in the yarn winding device according to the present invention.

  In FIG. 7, the leftmost side shows the empty bobbin 114 before the yarn is wound. As shown in the figure, the yarn is guided to the slot groove 114b side formed on the transfer tail groove 114a side of the bobbin 114 by the operations of the shift guide 140, the transfer tail forming part 150, the swing guide part 160, and the like.

  In FIG. 7, the central portion shows a state where the yarn has moved to the empty bobbin 114 and is cut, and the rightmost side shows a state where the yarn is normally wound. As shown in the central portion of FIG. 7, the yarn is guided to the bobbin transfer tail groove 114a side by the operations of the shift guide 140, the transfer tail forming portion 150, the swing guide portion 160, and the like. Subsequently, the yarn is hung on the transfer tail groove 114a and moved, and at the same time, it is hung on the slot groove 114b and automatically cut. Accordingly, the thread is not cut by the braking force of the full bobbin as in the prior art, but the thread is automatically cut by the slot groove 114b formed in the bobbin, so that the tension of the thread and the denier (denier) The yarn can be cut evenly at a constant position regardless of the characteristics. Of course, after such an operation, as shown in the rightmost side of FIG. 7, the yarn is wound around the bobbin normally with a predetermined traverse width.

  FIG. 8 is a flowchart showing a yarn moving method using the yarn winding device according to the present invention.

  As shown in FIG. 8, the yarn moving method using the yarn winding device 100 according to the present invention includes a yarn winding stage (S1), a rotating drum rotating stage (S2), a yarn cutting stage (S3), and a yarn returning stage ( S4) and a yarn winding stage (S5).

  9a to 9e are schematic views sequentially showing a yarn moving method using the yarn winding device according to the present invention. Reference is now made to FIGS.

  As shown in FIG. 9a, in the yarn winding stage (S1), the yarn is wound with a predetermined traverse width until the bobbin attached to the upper bobbin holder 112 reaches the full bobbin 113. That is, while the yarn supplied from the godet roller is traversed with a predetermined width, the bobbin fixed to the upper bobbin holder 112 is wound up to the full bobbin 113. At this time, the shift guide 140, the primary guide 153 of the transfer tail forming unit 150, the secondary guide 156, and the swing guide unit 160 do not operate yet, and only the traverse roller unit 120 and the friction roller unit 130 operate.

  Here, “GRCENTER” expressed in English in the drawings is Goderola's center, “2ND GUIDE” is the secondary guide, “1ST GUIDE” is the primary guide, “SHIFT GUIDE” is the shift guide, and “T / R CENTER” is The center of the traverse roller section, “F / R CENTER” means the center of the friction roller, “B / H” means the bobbin holder, and “SWING GUIDE” means the relative position of the swing guide. In the drawings, a relatively thick line represents a component that is currently operating, and a relatively thin line represents a component that is not currently operating.

  As shown in FIG. 9b, when the upper bobbin becomes full in the rotating stage (S2) of the rotary drum, the upper full bobbin 113 is rotated downward and the lower empty bobbin 114 is rotated upward. That is, by rotating the rotating drum 110 at a predetermined angle, the positions of the full bobbin 113 and the empty bobbin 114 can be changed.

  As shown in FIG. 9c, in the yarn cutting stage (S3), the swing guide portion 160 operates to move the yarn between the full bobbin 113 and the empty bobbin 114 to the transfer tail groove 114a side of the empty bobbin 114. Guide you as close as possible. Further, the shift guide 140 and the transfer tail forming portion 150 located at the upper part of the empty bobbin 114 are also operated at the same time, so that the yarn at the upper part of the empty bobbin 114 leaves the traverse position and the transfer tail groove 114a of the empty bobbin 114. Move to. Here, the transfer tail forming portion 150 guides the yarn into the transfer tail groove 114 a of the empty bobbin 114 by operating the primary guide 153 and the secondary guide 156.

  By such an operation, the yarn moves while being guided by the transfer tail groove 114a of the empty bobbin 114. Further, the yarn is caught by the slot groove 114b of the empty bobbin 114 and cut. That is, in the present invention, the yarn is not cut by the braking force due to the rotation stop of the full bobbin as in the conventional case, but the yarn is cut and moved accurately at a predetermined position by the slot groove formed in the bobbin. Therefore, in the full bobbin 113, the bunch concentration phenomenon of the outermost layer as in the conventional case does not occur. Furthermore, in the present invention, the traverse part 120 and the friction roller part 130 do not rise during the movement and cutting of the yarn, so that the bunch concentration phenomenon in the innermost layer as in the conventional case does not occur.

  As shown in FIG. 9d, in the yarn return stage (S4), the yarn on the upper portion of the empty bobbin 114 returns to the original traverse position. That is, when the shift guide 140 and the primary guide 153 and the secondary guide 156 of the transfer tail forming unit 150 are returned to their original positions, the yarn smoothly returns to its original traverse position. Substantially, the secondary guide 156 returns the yarn in the transfer tail groove 114a in the upper empty bobbin 114 to the traverse position.

  As shown in FIG. 9E, in the yarn winding stage (S5), the upper empty bobbin 114 has a predetermined traverse width and is wound up. Of course, in such a yarn winding stage, the shift guide 140, the primary guide 153, the secondary guide 156, and the swing guide portion 160 are all returned to their original positions.

  Here, as described above, the present invention is performed while the traverse roller portion and the friction roller portion do not rise to a predetermined height upward as in the prior art during the movement and cutting of the yarn. Therefore, the bunch concentration phenomenon in the innermost layer does not occur in the empty bobbin that starts newly winding after the movement and cutting of the yarn is completed as in the conventional case. Further, according to the present invention, as described above, since the yarn is cut by the slot groove provided on the bobbin, the yarn can be cut evenly regardless of characteristics such as the tension and denier of the yarn, and the full bobbin The bunch concentration phenomenon in the outermost layer and the bunch concentration phenomenon in the innermost layer of the empty bobbin do not occur.

DESCRIPTION OF SYMBOLS 100 ... Yarn winding device, 101 ... Frame, 110 ... Rotary drum, 111, 112 ... Bobbin holder, 113 ... Full bobbin, 113a ... Transfer tail groove, 113b ... Slot groove, 114 ... Empty bobbin, 114a ... Transfer tail groove, 114b ... Slot groove, 120 ... traverse roller portion, 121 ... traverse roller, 130 ... friction roller portion, 131 ... friction roller, 140 ... shift guide, 150 ... transfer tail forming portion, 151 ... cover plate, 152 ... primary cylinder, 153 ... Primary guide, 154 ... guide plate, 154a ... guide bar, 155 ... secondary cylinder, 156 ... secondary guide, 157 ... guide plate, 157a ... guide bar, 158a ... fixed projection, 158b ... long hole, 160 ... swing guide Part 161 ... cylinder, 162 ... rotary shaft, 163 ... swing guide 164 ... horizontal projection, 165 ... horizontal notched groove, Y ... thread, C ... cake, MB ... middle bunch, SB ... Side Bunch

Claims (9)

A rotating drum, a bobbin holder provided with a plurality of bobbins each having a transfer tail groove formed on one side end portion thereof, which is rotatably provided at an upper portion and a lower portion of the rotating drum, and an upper portion of the rotating drum, In a yarn winding device comprising a traverse roller portion that allows a yarn to be wound on an upper bobbin with a predetermined traverse width, and a friction roller portion that contacts the upper bobbin and provides a constant pressure to the yarn,
A shift guide provided at a side portion of the traverse roller portion, for separating the yarn path from the traverse position;
A transfer tail forming portion provided on an upper portion of the friction roller portion for guiding the yarn to a transfer tail groove of a bobbin when the yarn is moved and cut;
A swing guide portion that is provided on a side of the friction roller portion and guides the yarn path toward the transfer tail groove of the bobbin when the yarn moves and cuts;
In the bobbin, a slot groove is further formed inward so that the yarn can be cut on one side of the transfer tail groove.   2. The yarn winding device according to claim 1, wherein the slot groove has a triangular shape whose width gradually decreases toward the inside of the bobbin.   The yarn winding device according to claim 1, wherein the slot groove has a triangular shape with different lengths on both sides.   The shift guide is provided on a side portion of the traverse roller portion facing the friction roller portion, and the lower end rotates around the upper end at a constant angle clockwise when the yarn moves and cuts, and the yarn is removed from the traverse position. The yarn winding device capable of preventing bunch formation of the innermost and outer layers according to claim 1. The transfer tail forming part is
A cover plate covering the friction roller portion;
A primary cylinder provided in a horizontal direction on the cover plate;
A primary guide that guides the yarn from the traverse position to the transfer tail groove of the bobbin by providing the cover plate so that it can slide in the horizontal direction at the same time as being attached to the primary cylinder;
A secondary cylinder provided in a direction perpendicular to the primary guide;
And a secondary guide for returning the yarn from the transfer tail groove of the bobbin to the original traverse position by being provided so as to be slidable in the vertical direction at the same time as being attached to the secondary cylinder. The yarn winding device capable of preventing bunch formation of the innermost and outer layers according to claim 1. The primary guide is
A guide plate;
6. The guide plate according to claim 5, further comprising a plurality of guide bars which extend at a lower length toward the lower end of the guide plate and guide the yarn from the traverse position to the transfer tail groove of the bobbin. Yarn winding device that can prevent bunch formation on inner and outer layers. The secondary guide is
A guide plate;
6. The guide plate according to claim 5, wherein the guide plate includes a plurality of guide bars extending at a predetermined length in a lower direction at the lower end of the guide plate and returning the yarn from the transfer tail groove of the bobbin to the traverse position. A yarn winding device that can prevent bunch formation on the innermost and outer layers. The swing guide part is
A cylinder,
A swing guide that is attached to the cylinder and rotates at a fixed angle around the rotation axis and is positioned at the lower end of the upper empty bobbin, thereby guiding the path of the thread until immediately before cutting,
2. The innermost and outermost layer bunch formation according to claim 1, wherein the swing guide is formed with a horizontal protrusion and a horizontal cutout groove in a horizontal direction so as to guide the yarn in a horizontal direction on the transfer tail groove side. Yarn winding device that can prevent A bobbin with slot grooves formed on one side of the transfer tail groove on the upper part and the lower part, respectively, and a thread winding stage for winding the thread until the bobbin provided on the upper part is full,
When the bobbin provided at the upper part becomes a full bobbin, the upper full bobbin is rotated to the lower part and the lower empty bobbin is rotated to the upper part.
The yarn between the lower full bobbin and the upper empty bobbin is guided to one side, and the upper yarn of the empty bobbin is separated from the traverse position and guided to the transfer tail groove of the empty bobbin. A thread cutting stage in which the thread is moved and cut by the slot groove;
A yarn moving method capable of preventing bunch concentration in the innermost and outer layers, comprising a yarn returning step of returning the upper yarn of the empty bobbin to an original traverse position.