Yarn Winding Machine

Abstract

The thread winder (1) is equipped with a traverse device (21), a contact roller (31), a turret plate, a thread separation device, and a regulating guide (75). The turret plate changes the positions of the first bobbin holder (41) and the second bobbin holder (42) during bobbin switching. The thread separation device separates the thread wound on the first bobbin (91) from the traverse device (21) during bobbin switching. The regulating guide (75) is provided to correspond to both sides of the thread layer area of ​​the first bobbin (91) and regulates the thread wound on the first bobbin (91) into the thread layer area of ​​the first bobbin (91) in the axial direction of the package (94) before the operation of separating the thread from the traverse device (21) by the thread separation device is completed.

Description

Technology Field

[0001] The present invention relates to a thread winder having a plurality of bobbin holders. Background Technology

[0002] Patent document 1 is Japanese Patent Publication No. Hei 7-268722.

[0003] The spinning winder of Patent Document 1 manufactures a package by winding a thread onto a bobbin while traversing it. The spinning winder is equipped with two bobbin holders and a guide bar. After the winding of the thread into the package from one bobbin holder is completed, the spinning winder switches the position of the bobbin holder. Accordingly, an empty bobbin is positioned at the winding position. After the position of the bobbin holder is switched, the guide bar winds the thread supplied to the package onto the empty bobbin. Subsequently, the thread between the empty bobbin and the package is cut. Accordingly, the bobbin can be switched to continue winding the thread. Prior art literature

[0004] Japanese Patent Publication No. Hei 7-268722 The problem to be solved

[0005] In the thread winder of Patent Document 1, the thread is wound by switching the bobbin while the thread is held in the traverse device. However, in a thread winder of a different configuration, a slit-shaped thread capture portion is formed at the end of the empty bobbin outside the thread winding area, and the thread supplied to the package is guided along the thread capture portion to capture the corresponding thread in the empty bobbin. In this type of thread winder, it is necessary to separate the corresponding thread from the traverse device in order to move the thread supplied to the package to the thread capture portion at the end of the empty bobbin. However, if the corresponding thread is located at the end of the traverse width at the timing when the corresponding thread is separated from the traverse device, the corresponding thread falls to the end of the bobbin outside the axial direction of the package thread layer, and the tension of the thread decreases, making it impossible to continue subsequent processing.

[0006] The present invention has been made in light of the above circumstances, and its main objective is to provide a yarn winder capable of preventing the yarn from falling outward in the axial direction of the package in a yarn winder where it is necessary to separate the yarn from the traverse device when switching bobbins to continue winding the yarn.

[0007] The problem to be solved by the present invention is as described above, and the means for solving this problem and the effect thereof will be explained below.

[0008] According to an aspect of the present invention, a yarn winder having the following configuration is provided. That is, the yarn winder comprises a first bobbin holder, a second bobbin holder, a traverse device, a contact roller, a bobbin holder moving mechanism, a yarn separation device, and a regulating guide. The first bobbin holder holds a first bobbin. The second bobbin holder holds a second bobbin. The traverse device traverses a yarn wound on the first bobbin or the second bobbin. The contact roller contacts the first bobbin, the second bobbin, or a package, and sends the yarn traversed by the traverse device to the first bobbin, the second bobbin, or the package. The bobbin holder moving mechanism changes the positions of the first bobbin holder and the second bobbin holder during a bobbin switching process, in which the second bobbin and the contact roller are separated and the first bobbin or package is in contact with the contact roller and a package is manufactured by winding thread onto the first bobbin, and the first bobbin and the contact roller are separated and the second bobbin or package is in contact with the contact roller and a package is manufactured by winding thread onto the second bobbin. The thread separation device separates the thread wound on the first bobbin from the traverse device during the bobbin switching process. The regulating guide is provided to correspond to both sides of the thread layer area of ​​the first bobbin, and regulates the thread wound on the first bobbin into the thread layer area of ​​the first bobbin in the winding direction before the operation of separating the thread from the traverse device by the thread separation device is completed.

[0009] Accordingly, since the yarn is regulated within the yarn layer area of ​​the first bobbin by the regulatory guide, it is possible to prevent the yarn from falling outward in the axial direction of the package during bobbin switching.

[0010] It is preferable that the above-described yarn winder be configured as follows. That is, the yarn winder regulates the portion of the yarn located between the first bobbin and the contact roller, which is spaced apart from the contact roller, on the side closer to the first bobbin.

[0011] Accordingly, since the thread can be controlled at a position close to the first bobbin (package), it is possible to more reliably prevent the thread from falling outward in the axial direction of the package.

[0012] It is preferable that the above-described yarn winder be configured as follows. That is, it is provided with a winding device that acts on the yarn between the first bobbin and the contact roller, which are spaced apart from the contact roller, and winds the yarn onto the second bobbin. The above-described regulating guide is installed on the winding device.

[0013] Accordingly, the structure of the thread winder can be simplified as the regulatory guide and the winding device can be integrated.

[0014] In the above-described yarn winder, it is preferable to have the following configuration. That is, the yarn between the first bobbin and the contact roller, which is spaced apart from the contact roller, is wound onto the second bobbin by the winding device. After being regulated by the regulating guide, the yarn separation device separates the yarn from the traverse device.

[0015] Accordingly, since thread regulation by regulatory guidelines is performed before separating the thread from the traverse device, the thread falling outward in the axial direction of the package can be more reliably suppressed.

[0016] It is preferable that the above-described yarn winder be configured as follows. That is, the yarn winder is provided with a cutting device that cuts the yarn between the second bobbin and the first bobbin after the yarn between the first bobbin and the contact roller, which is spaced apart from the contact roller, is wound onto the second bobbin by the winding device. The cutting device is installed in the winding device.

[0017] Accordingly, since a cutting device and a regulatory guide are installed in the winding device, members acting on the connector can be bundled and arranged. As a result, the structure can be simplified.

[0018] It is preferable that the above-described yarn winder be configured as follows. That is, the regulating guide comprises a wall portion and an auxiliary portion. The wall portion is positioned within the yarn layer area of ​​the first bobbin and prevents the yarn wound on the first bobbin from extending beyond the yarn layer area. The auxiliary portion is provided within the range of at least the yarn layer area outside the wall portion and guides the yarn wound on the first bobbin that extends beyond the outside of the wall portion into the inside of the wall portion.

[0019] Accordingly, the thread is guided inward by the auxiliary part, and the wall prevents the thread from moving outward from the wall. As a result, the thread can be more reliably regulated to be located within the range of the thread layer area.

[0020] It is preferable that the above-described yarn winder be configured as follows. That is, the yarn winder is equipped with a yarn pulling device. The second bobbin has a slit-shaped yarn capturing portion formed therein to capture the yarn between the first bobbin and the contact roller, which is spaced apart from the contact roller, into the second bobbin during the bobbin switching. The yarn pulling device pulls the yarn between the first bobbin and the contact roller, which is spaced apart from the contact roller, toward the slit-shaped yarn capturing portion. A regulating guide on the side close to the yarn capturing portion regulates the yarn pulled toward the slit-shaped yarn capturing portion into the yarn layer area of ​​the first bobbin.

[0021] Accordingly, by using one side of the regulating guide, it is possible to prevent the thread from falling off the surface of the thread layer when the thread is pulled. In other words, since one regulating guide has two functions, the structure can be simplified compared to a configuration where an individual guide is provided for each function. Brief explanation of the drawing

[0022] FIG. 1 is a front view of a thread winder according to one embodiment of the present invention. Figure 2 is a block diagram of a thread winder. FIG. 3 is a perspective view around the first housing and the second housing. Fig. 4 is a side view showing the regulated location and actual layer area. FIG. 5 is a perspective view of a thread pulling device. FIG. 6 is a flowchart illustrating a process of switching from a state of manufacturing a package with a first bobbin to a state of manufacturing a package with a second bobbin. FIG. 7 is an explanatory diagram showing the first half of a process of switching from a state of manufacturing a package with a first bobbin to a state of manufacturing a package with a second bobbin. FIG. 8 is an explanatory diagram showing the latter part of a process of switching from a state of manufacturing a package with a first bobbin to a state of manufacturing a package with a second bobbin. Specific details for implementing the invention

[0023] Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a thread winder (1) according to one embodiment of the present invention. FIG. 2 is a block diagram of the thread winder (1). In the following description, the upstream or downstream of the thread travel direction may be simply referred to as upstream or downstream.

[0024] A spinneret, which is not shown in the illustration, is positioned upstream of the yarn winder (1) shown in FIG. 1. The spinneret manufactures yarn (93) and supplies it to the yarn winder (1). The yarn winder (1) winds the yarn (93) onto a first bobbin (91) or a second bobbin (92) to manufacture a package (94). FIG. 1 shows a state in which the yarn (93) is wound onto the first bobbin (91) to form a yarn layer and manufacture a package (94). Meanwhile, the second bobbin (92) is in an empty bobbin state where the yarn (93) is not wound. The yarn (93) is an elastic yarn, such as spandex, for example. However, the type of yarn (93) is not limited to elastic yarn and may be a synthetic yarn, such as nylon or polyester, for example.

[0025] In addition, in this embodiment, a plurality of threads (93) arranged in the axial direction of the package (94) are supplied from the spinneret to the thread winder (1). Additionally, a plurality of first bobbins (91) are arranged side by side in the axial direction of the package (94). The thread winder (1) winds the plurality of threads (93) onto each of the first bobbins (91) to manufacture a plurality of packages (94).

[0026] Below, details of the thread winder (1) will be described. As shown in FIG. 1, the thread winder (1) is equipped with a frame (11), a first housing (20), a second housing (30), and a turret plate (bobbin holder moving mechanism) (40).

[0027] The frame (11) is a member that holds each part of the thread winder (1). A traverse device (21) is installed in the first housing (20). The traverse device (21) traverses the thread (93) sent downstream by reciprocating in the winding direction (axial direction of the package (94)) while the traverse guide (23), described later, is engaged with the thread (93). A thread layer is formed on the first bobbin (91) or the second bobbin (92) by the traverse operation of this thread (93). As shown in FIG. 2, the traverse device (21) is equipped with a traverse cam (22) and a traverse guide (23).

[0028] The traverse cam (22) is a roller-shaped member arranged parallel to the first bobbin (91) and the second bobbin (92). A spiral cam groove is formed on the outer surface of the traverse cam (22). The traverse cam (22) is rotated by a traverse motor (51).

[0029] The traverse motor (51) is controlled by a control device (50). The control device (50) is equipped with a CPU, ROM, RAM, etc. The CPU performs various controls regarding the thread winder (1) by reading a program stored in the ROM into the RAM and executing it.

[0030] The traverse guide (23) is a part that engages with the thread (93). The tip of the traverse guide (23) has, for example, a roughly U-shaped guide section and engages with the thread (93) by inserting the thread (93) in the winding direction. The base of the traverse guide (23) is located in the cam groove of the traverse cam (22). With this configuration, the traverse guide (23) can be reciprocated in the winding direction by rotating the traverse cam (22).

[0031] A contact roller (31) is rotatably installed in the second housing (30). The contact roller (31) rotates while contacting the thread layer of the package (94) with a predetermined pressure during the winding of the thread (93), thereby sending the thread (93) from the traverse guide (23) to the thread layer of the package (94) and simultaneously arranging the shape of the thread layer of the package (94). Additionally, the contact roller (31) may be rotated using a driving unit such as a motor.

[0032] An operation panel (32) is installed in the second housing (30). The operation panel (32) is a device operated by an operator. The operator gives instructions to the thread winder (1) by operating the operation panel (32). The instructions given by the operator include, for example, starting winding, stopping winding, changing winding conditions, etc.

[0033] As shown in FIG. 2, the thread winder (1) is equipped with a lifting device (60). The lifting device (60) lifts the first housing (20) and the second housing (30) together. Specifically, the first housing (20) and the second housing (30) are attached to a lifting member (65). A ball nut (61) is mounted on this lifting member (65). Additionally, a screw rod (62) is mounted on the frame (11). By rotating the screw rod (62) using a lifting motor (63), the first housing (20) and the second housing (30) can be lifted. The lifting motor (63) is controlled by a control device (50). Additionally, the lifting device (60) may be realized using a cylinder instead of a ball screw.

[0034] The turret plate (40) is a disc-shaped member. The turret plate (40) is rotatably mounted on the frame (11). The axis of rotation of the turret plate (40) is the center position of the turret plate (40). The turret plate (40) is rotated by the turret motor (53) shown in FIG. 2. The turret motor (53) is controlled by a control device (50).

[0035] Among the turret plates (40), a first bobbin holder (41) and a second bobbin holder (42) are provided at two opposing locations with the center position in between. A plurality of first bobbins (91) can be mounted axially in the first bobbin holder (41). A plurality of second bobbins (92) can be mounted axially in the second bobbin holder (42). By rotating the turret plate (40), the positions of the first bobbin holder (41) and the second bobbin holder (42) can be changed. Additionally, if the positions of the first bobbin holder (41) and the second bobbin holder (42) can be changed, another device may be used instead of the turret plate (40).

[0036] The first bobbin holder (41) is rotatable with respect to the turret plate (40) with the axis position of the first bobbin holder (41) as the center of rotation. The first bobbin holder (41) is driven by rotation by the first bobbin holder motor (54) shown in FIG. 2. Likewise, the second bobbin holder (42) is rotatable with respect to the turret plate (40) with the axis position of the second bobbin holder (42) as the center of rotation. The second bobbin holder (42) is driven by rotation by the second bobbin holder motor (55) shown in FIG. 2. The first bobbin holder motor (54) and the second bobbin holder motor (55) are controlled by a control device (50).

[0037] As shown in FIG. 1, the first bobbin holder (41) and the second bobbin holder (42) are arranged vertically, with the position of the first bobbin holder (41) on the higher side being the winding position and the position of the second bobbin holder (42) on the lower side being the waiting position. The thread winder (1) winds the thread (93) onto the first bobbin (91) of the first bobbin holder (41) on the winding position to manufacture a package (94).

[0038] Additionally, when a predetermined amount of thread (93) is wound and the package (94) of the first bobbin holder (41) becomes fully wound, the turret plate (40) rotates, thereby switching the positions of the first bobbin holder (41) and the second bobbin holder (42). After that, the package (94) of the first bobbin holder (41), which is in a standby position after being fully wound, is retrieved, and the thread (93) is wound onto the second bobbin (92) of the second bobbin holder (42), which is in a winding position. A new first bobbin (91) is mounted on the first bobbin holder (41) from which the package (94) has been retrieved. Hereinafter, the time (period) from the state of manufacturing a package (94) by winding thread (93) onto the first bobbin (91) to the state of manufacturing a package (94) by winding thread (93) onto the second bobbin (92) is referred to as the "bobbin switching time."

[0039] As shown in FIGS. 3 and 4, the thread winder (1) is equipped with a winding device (71). The winding device (71) performs a winding operation when switching bobbins. The winding operation is an operation of winding the thread (93) onto the second bobbin (92) at a predetermined angle by acting on (pressing) the connecting thread (93a) spanning between the first bobbin (91) and the second bobbin (92), as shown in the upper drawing of FIG. 8 described later. The winding device (71) is equipped with an actuator (cylinder, solenoid, or motor, etc.) not shown in the drawing for performing the winding operation. The actuator of the winding device (71) is controlled by a control device (50). Accordingly, the tip of the coiling device (71) (the part that presses the connector (93a)) can move between the operating position where it presses the connector (93a) and the withdrawal position where it withdraws from the operating position.

[0040] A regulating guide (75) is installed at the tip of the winding device (71). The regulating guide (75) regulates the position of the connecting thread (93a) before the operation of separating the thread from the traverse device (21) by the thread separation device (85), which will be described later, is completed during bobbin switching. As shown in FIG. 4, the regulating guide (75) is equipped with a wall portion (76) and an auxiliary portion (77). A pair of regulating guides (75) are provided for each bobbin (91, 92) mounted on the bobbin holders (41, 42).

[0041] Two wall sections (76) are provided for each bobbin (91, 92), and the two wall sections (76) are positioned facing each other. The positions of the two wall sections (76) (specifically, the positions of the wall surfaces) are the regulating positions. Additionally, as shown in FIG. 4, the area where the thread (93) is wound on the first bobbin (91) is called the thread layer area. The regulating positions of the two wall sections (76) are located within the thread layer area in the axial direction of the package (94). Specifically, two regulating guides (75) (wall sections (76)) are provided to correspond to both sides of the thread layer area (i.e., one side and the other side rather than the center, and more specifically, both ends). Accordingly, the regulating guides (75) (wall sections (76)) restrict the thread (93) wound on the first bobbin (91) to within the thread layer area (preventing the thread (93) from crossing the thread layer area). Additionally, in this specification, the term "end" refers to a range that includes not only the end point but also its vicinity.

[0042] The auxiliary part (77) is a part that guides the connecting thread (93a) to be positioned inside the two wall parts (76). The auxiliary part (77) is provided in the axial direction of the package (94) in a range from the wall part (76) to the outside and also beyond the floor area. The auxiliary part (77) has a part that is inclined or curved so as to approach the center of the floor area in the axial direction of the package (94) and thus approach the winding device (71). Accordingly, the auxiliary part (77) guides the thread (93) wound on the first bobbin (91) into the inside of the two wall parts (76). Specifically, during the winding operation by the winding device (71), the connecting thread (93a) approaches the regulating guide (75). At this time, when the connecting wire (93a) comes into contact with the auxiliary part (77) (i.e., when the position of the connecting wire (93a) extends beyond the outer side of the wall part (76), the connecting wire (93a) is guided along the inclined surface of the auxiliary part (77). As a result, the connecting wire (93a) is guided into the inner side of the two wall parts (76). In addition, the boundary between the auxiliary part (77) and the wall part (76) is chamfered in an arc shape so as not to damage the thread (93) when guiding the connecting wire (93a).

[0043] In this embodiment, a plurality of regulating guides (75) are connected to the base portion (74). In other words, the base portion (74) and the plurality of regulating guides (75) are formed integrally, or in other words, are configured as a single flat plate-shaped member. Alternatively, individual regulating guides (75) may be installed on the winding device (71) respectively. Also, the shape of the regulating guides (75) in this embodiment is an example and can be appropriately changed. For example, the auxiliary portion (77) may be omitted.

[0044] A cutting device (81) is additionally installed at the tip of the winding device (71). The cutting device (81) is a device that cuts the connecting thread (93a) after the thread (93) is wound onto the second bobbin (92) by the winding device (71). The cutting device (81) is equipped with a fixed blade (82) and a movable blade (83). The cutting device (81) is equipped with an actuator (not shown) for moving the movable blade (83). The cutting device (81) cuts the thread (93) by gripping the thread (93) with the fixed blade (82) and the movable blade (83). The actuator of the cutting device (81) is controlled by a control device (50). One cutting device (81) is provided for each bobbin (91, 92) mounted on the bobbin holder (41, 42). The position where the cutting device (81) is installed is a position where the thread (93) extending from the thread-catching part (92a) described later to the wall part (76) on the side of the thread-catching part (92a) can be cut.

[0045] The cutting device (81) and the regulating guide (75) of the present embodiment are jointly fastened to the winding device (71). Specifically, the installation hole of the cutting device (81), the installation hole of the regulating guide (75), and the installation hole of the winding device (71) are combined and fastened together by means of a bolt or the like. Additionally, the cutting device (81) and the regulating guide (75) may be installed individually on the winding device (71). Furthermore, the cutting device (81) of the present embodiment is an example and may not be configured to be divided into a fixed blade (82) and a movable blade (83).

[0046] As shown in FIGS. 3 and 4, a slit-shaped thread-catching portion (92a) is formed near the axial end of the second bobbin (92) of the present embodiment (e.g., further outward than the winding direction) (the same applies to the first bobbin (91)). The thread-catching portion (92a) is used to catch the thread (93) between the first bobbin (91) and the contact roller (31), which is spaced apart from the contact roller (31) during bobbin switching, onto the second bobbin (92). The thread-catching portion (92a) is generally used when manufacturing a package (94) of relatively thick elastic yarn having high elasticity. Additionally, the thread-catching portion (92a) is not mandatory and may be omitted. In this case, the thread (93) can be fixed to the second bobbin (92), for example, by rod rolling the thread (93) onto the second bobbin (92).

[0047] As shown in FIG. 3, a thread pulling device (88) is positioned above the traverse device (21). When switching bobbins, the thread pulling device (88) pulls the thread (93) between the first bobbin (91), which is spaced apart from the contact roller (31), and the contact roller (31) to the thread capturing part (92a) of the second bobbin (92) after the thread separation device (85), described later, separates the thread (93) from the traverse guide (23). As shown in FIG. 5, the thread pulling device (88) is equipped with a base plate (88a), a slide plate (88c), a thread pulling member (88d), and a driving device (88e).

[0048] A slide hole (88b) is formed in the base plate (88a). The slide plate (88c) is configured to slide along the slide hole (88b) relative to the base plate (88a). A plurality of thread pulling members (88d) are fixed at regular intervals on the slide plate (88c). Each thread pulling member (88d) pulls a plurality of threads (93) arranged in parallel in the winding direction toward the thread capture part (92a) as the slide plate (88c) slides. The driving device (88e) is a cylinder, with the base end (piston side) fixed to the base plate (88a) and the tip end (rod side) fixed to the slide plate (88c). By extending and retracting the driving device (88e), the slide plate (88c) (thread pulling member (88d)) can be operated relative to the base plate (88a). Additionally, the driving device (88e) is controlled by the control device (50). The thread pulling device (88) described above is an example, and the thread pulling device (88) may be realized with other configurations.

[0049] Next, with reference to FIGS. 6 to 8, a process of switching from a state in which a package (94) is manufactured by winding a thread (93) on a first bobbin (91) to a state in which a package (94) is manufactured by winding a thread (93) on a second bobbin (92) will be described.

[0050] The upper drawing of FIG. 7 describes a state in which a package (94) is manufactured by winding a thread (93) onto a first bobbin (91) of a first bobbin holder (41). Specifically, a traverse device (21) traverses the thread (93) that is wound onto the first bobbin (91). A contact roller (31) contacts the first bobbin (91) and sends the thread (93) traversed from the traverse device (21) to the first bobbin (91). Accordingly, the thread (93) is wound onto the first bobbin (91) and a package (94) is manufactured. During the winding of the thread (93), a control device (50) determines whether the package (94) of the first bobbin holder (41) has been fully wound (S101). The control device (50) determines whether the package (94) has been fully wound based on a detection value, such as a sensor that detects the position of a contact roller (31) accompanying the thick winding of the package (94) or a sensor that detects the winding length of the thread (93).

[0051] When the control device (50) determines that the package (94) of the first bobbin holder (41) has been fully wound, it raises the first housing (20) and the second housing (30) by controlling the lifting device (60) (S102).

[0052] Next, the control device (50) switches from a state in which the second bobbin (92) is separated from the contact roller (31) and the first bobbin (91) (package (94)) contacts the contact roller (31) to wind thread (93) onto the first bobbin (91) to manufacture the package (94), to a state in which the first bobbin (91) is separated from the contact roller (31) and the second bobbin (92) (package (94)) contacts the contact roller (31) to wind thread (93) onto the second bobbin (92) to manufacture the package (94). First, the control device (50) switches the positions of the first bobbin holder (41) and the second bobbin holder (42) by controlling the turret motor (53) (S103). Accordingly, the second bobbin holder (42) is positioned in the winding position and the first bobbin holder (41) is positioned in the standby position. The lower drawing of FIG. 7 shows the state after the completion of step S103. As shown in this drawing, the positions of the two bobbins are switched so that a thread (93) is stretched between the first bobbin (91) (package (94)) and the second bobbin (92). As described above, this thread (93) corresponds to a connector (93a).

[0053] Next, the control device (50) lowers the first housing (20) and the second housing (30) by controlling the lifting device (60) (S104). Accordingly, the contact roller (31) comes into contact with the second bobbin (92) of the second bobbin holder (42).

[0054] Next, the control device (50) controls the winding device (71) to cause the winding device (71) to perform a winding operation (S105). Accordingly, the tip of the winding device (71) presses the connecting thread (93a), thereby increasing the contact length of the thread (93) with the second bobbin (92). In that state, the second bobbin holder (42) is rotated so that the thread (93) is wound onto the second bobbin (92). The upper drawing of FIG. 8 shows the state after the winding device (71) has performed the winding operation. As described above, a regulating guide (75) is installed at the tip of the winding device (71). Therefore, as the winding device (71) performs the winding operation, the thread (93) wound on the first bobbin (91) is regulated into the thread layer area of ​​the first bobbin (91) in the axial direction of the package (94). Additionally, the regulating guide (75) regulates the portion of the thread (93) located between the first bobbin (91) and the contact roller (31) that is spaced apart from the contact roller (31), specifically the portion closer to the first bobbin (91). Specifically, as shown in the upper drawing of FIG. 8, the regulating guide (75) regulates the thread (93) located in the space (space indicated by symbol A) that is closer to the first bobbin (91) than the center in the vertical direction between the contact roller (31) and the first bobbin (91) (package (94)). Accordingly, the thread (93) can be regulated into the thread layer area at a location close to the package (94).

[0055] Next, the control device (50) separates the thread (93) from the traverse device (21) by controlling the thread separation device (85) (S106). That is, the regulation of the thread (93) by the regulation guide (75) is performed before the operation of the thread separation device (85) separating the thread (93) from the traverse device (21) is completed. The thread separation device (85) is configured to separate the thread (93) from the traverse guide (23) by pressing the thread (93) toward the second housing (30) side and deviating the thread path. In this embodiment, the thread (93) is wound onto the second bobbin (92), and the thread (93) is also regulated within the thread layer area of ​​the first bobbin (91). Therefore, even if the thread (93) is separated from the traverse guide (23), the thread (93) does not fall outward in the winding direction of the package (94).

[0056] Next, the control device (50) controls the thread pulling device (88) to pull the thread (93) toward the thread capture portion (92a) of the second bobbin (92) (S107). Accordingly, the thread (93) enters the thread capture portion (92a), and the thread (93) is fixed to the second bobbin (92). At this time, the regulating guide (75) (the 75 on the left in FIG. 8) of the pair of regulating guides (75) that is closer to the thread capture portion (92a) in the axial direction of the package (94) regulates the thread (93) pulled toward the thread capture portion (92a) into the thread layer area of ​​the first bobbin (91). Accordingly, the thread (93) can be prevented from falling off the package (94) during thread pulling. Then, the control device (50) cuts the connecting thread (93a) by controlling the cutting device (81) (S108). By the above, the transition from the state of manufacturing a package (94) by winding the thread (93) on the first bobbin (91) to the state of manufacturing a package (94) by winding the thread (93) on the second bobbin (92) is completed.

[0057] After that, the control device (50) returns the thread separation device (85) and the thread pulling device (88) to a standby state as shown in the lower drawing of FIG. 8, and then returns the winding device (71) to a standby position to resume normal winding to the second bobbin (92) (S109).

[0058] As described above, the thread winder (1) of the present embodiment is equipped with a first bobbin holder (41), a second bobbin holder (42), a traverse device (21), a contact roller (31), a turret plate (40), a thread separation device (85), and a regulating guide (75). The first bobbin holder (41) holds a first bobbin (91). The second bobbin holder (42) holds a second bobbin (92). The traverse device (21) traverses the thread (93) wound on the first bobbin (91) or the second bobbin (92). The contact roller (31) contacts the first bobbin (91), the second bobbin (92), or the package (94) and sends the thread traversed from the traverse device (21) to the first bobbin (91), the second bobbin (92), or the package (94). The turret plate (40) changes the positions of the first bobbin holder (41) and the second bobbin holder (42) during the bobbin switching process, from a state where the second bobbin (92) and the contact roller (31) are separated and the first bobbin (91) or the package (94) is in contact with the contact roller (31) and the thread (93) is wound on the first bobbin (91) to manufacture the package (94), to a state where the first bobbin (91) and the contact roller (31) are separated and the second bobbin (92) or the package (94) is in contact with the contact roller (31) and the thread (93) is wound on the second bobbin (92) to manufacture the package (94). During the bobbin switching process, the thread separation device (85) separates the thread (93) wound on the first bobbin (91) from the traverse device (21). The regulating guide (75) is provided to correspond to both sides of the thread layer area of ​​the first bobbin (91) and regulates the thread (93) wound on the first bobbin (91) into the thread layer area of ​​the first bobbin (91) in the axial direction of the package (94) before the operation of separating the thread (93) from the traverse device (21) by the thread separation device (85) is completed.

[0059] Accordingly, since the thread (93) is regulated within the thread layer area of ​​the first bobbin (91) by the regulation guide (75), it is possible to prevent the thread (93) from falling outward in the axial direction of the package (94) during bobbin switching.

[0060] In the thread winder (1) of the present embodiment, the regulating guide (75) regulates the portion of the thread (93) located between the first bobbin (91) and the contact roller (31) that is spaced apart from the contact roller (31), specifically the portion closer to the first bobbin (91).

[0061] Accordingly, since the thread can be controlled at a location close to the first bobbin (91) (package (94)), the thread (93) can be more reliably prevented from falling outward in the axial direction of the package (94).

[0062] In the thread winder (1) of the present embodiment, a winding device (71) is provided to act on a thread (93) between a first bobbin (91) spaced apart from the contact roller (31) and the contact roller (31), and to wind the thread (93) onto a second bobbin (92). A regulating guide (75) is installed on the winding device (71).

[0063] Accordingly, the regulatory guide (75) and the winding device (71) can be integrated, so the structure of the thread winder (1) can be simplified.

[0064] In the thread winder (1) of the present embodiment, the thread (93) between the first bobbin (91) and the contact roller (31), which is spaced apart from the contact roller (31), is wound onto the second bobbin (92) by the winding device (71). After being regulated by the regulating guide (75), the thread separation device (85) separates the thread from the traverse device (21).

[0065] Accordingly, since the seal (93) is regulated by the regulation guide (75) before separating the seal (93) from the traverse device (21), the seal (93) can be more reliably prevented from falling outward in the axial direction of the package (94).

[0066] The thread winder (1) of the present embodiment is equipped with a cutting device (81) that cuts the thread (93) between the second bobbin (92) and the first bobbin (91) after the thread (93) between the first bobbin (91) and the contact roller (31), which is spaced apart from the contact roller (31), is wound onto the second bobbin (92) by the winding device (71). The cutting device (81) is installed on the winding device (71).

[0067] Accordingly, since the cutting device (81) and the regulating guide (75) are installed in the winding device (71), the members acting on the connector (93a) can be arranged. As a result, the structure can be simplified.

[0068] In the thread winder (1) of the present embodiment, the regulating guide (75) comprises a wall portion (76) and an auxiliary portion (77). The wall portion (76) is positioned within the thread layer area of ​​the first bobbin (91) and prevents the thread (93) wound on the first bobbin (91) from extending beyond the thread layer area. The auxiliary portion (77) is provided within the range of at least the thread layer area outside the wall portion (76) and guides the thread (93) wound on the first bobbin (91) that extends beyond the outside of the wall portion (76) into the wall portion (76).

[0069] Accordingly, the thread (93) is guided into the inner side of the wall (76) by the auxiliary part (77), and the thread (93) is prevented from moving outward from the wall (76) by the wall (76). As a result, the thread (93) can be more reliably regulated to be located within the range of the thread layer area.

[0070] The thread winder (1) of the present embodiment is equipped with a thread pulling device (88). The second bobbin (92) has a slit-shaped thread capturing portion (92a) formed therein to capture the thread (93) between the first bobbin (91) and the contact roller (31), which is spaced apart from the contact roller (31), into the second bobbin (92) when the bobbin is switched. The thread pulling device (88) pulls the thread (93) between the first bobbin (91) and the contact roller (31), which is spaced apart from the contact roller (31), toward the slit-shaped thread capturing portion (92a). A regulating guide (75) on the side close to the thread capturing portion (92a) regulates the thread (93) pulled toward the slit-shaped thread capturing portion (92a) into the thread layer area of ​​the first bobbin (91).

[0071] Accordingly, by using one side of the regulation guide (75), the thread can be prevented from falling off the surface of the thread layer when the thread is pulled. That is, since one regulation guide (75) has two functions, the structure can be simplified compared to a configuration in which individual guides are provided for each function.

[0072] The preferred embodiments of the present invention have been described above, but the above configuration may be modified as, for example, as follows.

[0073] In the above embodiment, the regulating guide (75) is installed on the winding device (71), but the regulating guide (75) may be installed on another component. In this case, an actuator is provided to move the regulating guide (75) closer to and further away from the connecting wire (93a), so that the regulating guide (75) can be driven independently with respect to the winding device (71). The regulating guide (75) may return to a standby position immediately after the thread is separated by the thread separation device (85).

[0074] The timing at which the regulating guide (75) regulates the position of the thread (93) is not limited to the example shown in the above embodiment. For example, the regulating guide (75) may regulate the position of the thread (93) before the contact roller (31) and the second bobbin (92) come into contact.

[0075] If the regulated position of the regulated guide (75) is too close to the end of the thread layer area, the thread (93) may fall outward in the axial direction from the package (94) due to the roundness of the end of the thread layer. Therefore, it is preferable that the regulated position of the regulated guide (75) be located within a predetermined distance from the end of the thread layer area. Additionally, if the regulated guide (75) is also used as a guide to prevent the thread from falling out when pulling the thread, if the regulated position of the regulated guide (75) is too close to the center of the thread layer area, it becomes far from the thread capture part (92a), making it difficult for the thread (93) to be captured by the thread capture part (92a). Therefore, it is preferable to determine the regulated position of the regulated guide (75) by taking the above into consideration.

[0076] The thread capture portion (92a) may be formed within the thread layer area, rather than being limited to the outer side of the thread layer area. In this case, since it is necessary to separate the thread (93) from the traverse device (21), the regulatory guide (75) of the present invention may be utilized. Additionally, if the thread capture portion (92a) is formed in the center of the thread layer area, the thread pulling device (88) may be omitted.

[0077] In the above embodiment, the thread (93) is cut using a cutting device (81) after the thread (93) is caught by the thread catcher (92a). However, if the thread (93) connected to the first bobbin (91) is torn as the thread (93) is caught by the thread catcher (92a), the cutting device (81) may be omitted.

[0078] The flowchart shown in the above embodiment is merely an example, and some processing steps may be omitted, some processing steps may be modified, or new processing steps may be added. Additionally, the next processing step may be initiated before the current processing step is completed. For example, after the connecting thread (93a) is guided to the regulating guide (75) at the tip of the winding device (71), the thread separation device (85) may be operated before the winding operation of the winding device (71) is completed.

[0079] The traverse device (21) of the above embodiment is a cam drum type, but other configurations may be used as long as it is possible to reciprocate the traverse guide (23) in the winding direction. For example, a belt-type traverse device may be used instead of the traverse device (21).

Claims

Claim 1 A first bobbin holder holding a first bobbin, a second bobbin holder holding a second bobbin, a traverse device for traversing a thread wound on the first bobbin or the second bobbin, a contact roller that contacts the first bobbin, the second bobbin, or a package and sends the thread traversed by the traverse device to the first bobbin, the second bobbin, or the package, a bobbin holder moving mechanism for changing the positions of the first bobbin holder and the second bobbin holder in the bobbin switching process, wherein the second bobbin and the contact roller are separated and the first bobbin or package is in contact with the contact roller and a thread is wound on the first bobbin to manufacture a package, and the first bobbin and the contact roller are separated and the second bobbin or package is in contact with the contact roller and a thread is wound on the second bobbin to manufacture a package, and in the bobbin switching process, the thread wound on the first bobbin is A thread winder characterized by comprising: a thread separation device for separating a thread from the traverse device; a regulating guide each provided to correspond to both sides of the thread layer area of ​​the first bobbin and regulating the thread wound on the first bobbin into the thread layer area of ​​the first bobbin in the axial direction of the package before the operation of separating the thread from the traverse device by the thread separation device is completed; wherein the regulating guide comprises a wall portion provided to be located within the thread layer area of ​​the first bobbin to prevent the thread wound on the first bobbin from exceeding the thread layer area; and an auxiliary portion provided from the wall portion to the range of at least the thread layer area outside the wall portion and guiding the thread wound on the first bobbin that has exceeded the outside of the wall portion into the inside of the wall portion. Claim 2 A yarn winder according to claim 1, characterized in that the regulating guide regulates the portion of the yarn closer to the first bobbin among the yarns located between the first bobbin and the contact roller, which are spaced apart from the contact roller. Claim 3 A thread winder according to claim 1, characterized in that it has a winding device that acts on a thread between the first bobbin and the contact roller spaced apart from the contact roller to wind the thread onto the second bobbin, and the regulating guide is installed on the winding device. Claim 4 A thread winder according to paragraph 2, characterized in that it has a winding device that acts on a thread between the first bobbin and the contact roller spaced apart from the contact roller to wind the thread onto the second bobbin, and the regulating guide is installed on the winding device. Claim 5 A yarn winder according to claim 3, characterized in that the yarn between the first bobbin and the contact roller, spaced apart from the contact roller, is wound onto the second bobbin by the winding device, and after being regulated by the regulation guide, the yarn separator separates the yarn from the traverse device. Claim 6 A yarn winder according to claim 4, characterized in that the yarn between the first bobbin and the contact roller, spaced apart from the contact roller, is wound onto the second bobbin by the winding device, and after being regulated by the regulation guide, the yarn separator separates the yarn from the traverse device. Claim 7 A thread winder according to claim 3, comprising a cutting device for cutting the thread between the second bobbin and the first bobbin after the thread between the first bobbin and the contact roller is wound onto the second bobbin by the winding device, wherein the cutting device is installed in the winding device. Claim 8 A thread winder according to claim 4, comprising a cutting device for cutting the thread between the second bobbin and the first bobbin after the thread between the first bobbin and the contact roller, which is spaced apart from the contact roller, is wound onto the second bobbin by the winding device, and wherein the cutting device is installed in the winding device. Claim 9 A thread winder according to claim 5, comprising a cutting device for cutting the thread between the second bobbin and the first bobbin after the thread between the first bobbin and the contact roller, which is spaced apart from the contact roller, is wound onto the second bobbin by the winding device, and wherein the cutting device is installed in the winding device. Claim 10 A thread winder according to claim 6, comprising a cutting device for cutting the thread between the second bobbin and the first bobbin after the thread between the first bobbin and the contact roller is wound onto the second bobbin by the winding device, wherein the cutting device is installed in the winding device. Claim 11 A thread winder according to any one of claims 1 to 10, comprising a thread pulling device, wherein the second bobbin has a slit-shaped thread capturing portion formed therein for capturing a thread between the first bobbin and the contact roller, which is spaced apart from the contact roller, in the second bobbin during the bobbin switching, and the thread pulling device pulls the thread between the first bobbin and the contact roller, which is spaced apart from the contact roller, toward the slit-shaped thread capturing portion, and a regulating guide on the side closer to the thread capturing portion regulating the thread pulled toward the slit-shaped thread capturing portion into the thread layer area of ​​the first bobbin.

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