Silk thread winding machine

Abstract

The present invention relates to a silk thread winding machine which can effectively suppress air resistance applied to an end face of a package and improve a reduction effect of power consumption when a silk thread is wound. The yarn winding machine includes: a bobbin holder on which a plurality of bobbins for winding a plurality of yarns are mounted; a contact roller which is in contact with the outer peripheral surfaces of a plurality of packages formed by winding the plurality of threads on the plurality of bobbins; and a plurality of inter-end-surface covers disposed in a plurality of spaces formed between the end surfaces of the packages adjacent to each other in the front-rear direction. The inter-end-surface cover has a contact roller surface facing the contact roller side when viewed from the front-rear direction. The contact roller surface is disposed closer to the center side of the package than the outer peripheral surface of the package in the radial direction of the package. Then, when viewed from the front-rear direction, at least a portion of the contact roller surface is set so as to converge within an angle range of 30 degrees to 30 degrees to the downstream side in the rotation direction of the package, with a virtual line segment connecting the contact point and the center of the package as a reference.

Description

Technical Field

[0001] The present invention relates to a thread take-up machine for taking up threads. Background Art

[0002] Patent Document 1 discloses a thread take-up machine for taking up threads. The thread take-up machine includes a bobbin holder extending along a prescribed axial direction, and a contact roller extending in parallel with the bobbin holder. On the bobbin holder, a plurality of cylindrical bobbins for taking up a plurality of threads respectively are arranged and mounted in the axial direction. The contact roller abuts against the outer peripheral surfaces of a plurality of cylindrical packages formed by taking up a plurality of threads on the plurality of bobbins respectively, thereby applying a contact pressure to each package. The thread take-up machine winds the threads on the bobbins mounted on the bobbin holder by rotating the bobbin holder, thereby forming packages. In such a thread take-up machine, the package rotating together with the bobbin holder is subjected to air resistance, and thus there is a problem that the rotational load of the bobbin holder increases, and further the power consumption of the thread take-up machine increases.

[0003] Therefore, in the thread take-up machine of Patent Document 1, in order to suppress the air resistance applied to the package, a cover (the first cover portion described in Patent Document 1) is provided along the outer peripheral surface of the package. By providing the cover, the air flowing along the outer peripheral surface of the package (hereinafter referred to as "peripheral surface accompanying flow") is induced to the inner surface of the cover, and the peeling of air from the outer peripheral surface of the package is suppressed. Then, the decrease in air density in the region along the outer peripheral surface of the package (hereinafter referred to as "peripheral surface region") is suppressed, and the inflow of air from the space around the package into the peripheral surface region is suppressed. Thereby, it is possible to suppress the power consumption by suppressing the air resistance applied to the outer peripheral surface of the package.

[0004] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2021-123458

[0005] Here, for the plurality of packages mounted on the bobbin holder, the end faces of the packages adjacent to each other in the axial direction (that is, the circular faces at both ends of the cylindrical package) are spaced apart from each other. Since there is air in the gap between the end faces of the adjacent packages (hereinafter referred to as "between package end faces"), the end faces of each package are subjected to air resistance. That is, among the air resistance applied to the package, not only the air resistance applied to the outer peripheral surface of the package but also the air resistance applied to the end face of the package are included. However, in the thread take-up machine of Patent Document 1, the air resistance applied to the end faces of each package cannot be sufficiently suppressed. Hereinafter, a detailed description will be given.

[0006] In a yarn take-up machine as described in Patent Document 1, the outer peripheral surface of the package abuts against the contact roller, and the outer peripheral surface flow collides with the contact roller and is blocked. As a result, in the region of the outer peripheral surface that is downstream of the contact roller in the rotational direction of the package, the density of the outer peripheral surface flow decreases corresponding to the amount of air blocked. Then, air flows from around the package into the region where the air density has decreased. Then, a part of the air flowing in from around the package flows into the space between the end faces of the package, disturbing the flow of the air existing between the end faces of the package. As a result, the air existing between the end faces of the package flows in a direction that is significantly different from the rotational direction of the end face of the package. Thereby, the air resistance applied to the end faces of each package increases.

[0007] In addition, a part of the air blocked by the contact roller flows into the space between the end faces of the package in the region of the outer peripheral surface that is upstream of the contact roller in the rotational direction of the package. Then, as described above, due to the air flowing into the space between the end faces of the package, the flow of the air existing between the end faces of the package is disturbed, and the air resistance applied to the end faces of each package increases.

[0008] As described above, in the yarn take-up machine described in Patent Document 1, it is impossible to sufficiently suppress the increase in the air resistance on the end faces of each package caused by the collision between the outer peripheral surface flow and the contact roller. Therefore, in the configuration of Patent Document 1, it may not be possible to effectively suppress the power consumption of the yarn take-up machine. Summary of the Invention

[0009] An object of the present invention is to effectively suppress the air resistance applied to the end faces of the package during yarn take-up and improve the effect of reducing power consumption.

[0010] The yarn take-up machine of the present invention is characterized in that it includes: a bobbin holder that extends along a predetermined axial direction, and a plurality of bobbins for taking up a plurality of yarns are arranged and mounted along the axial direction; a contact roller that extends along the axial direction and abuts against the outer peripheral surfaces of a plurality of packages formed by taking up the plurality of yarns on the plurality of bobbins respectively; and an inter-end-face cover that is disposed in at least one of a plurality of spaces formed between the end faces of the packages adjacent to each other in the axial direction, the inter-end-face cover having a contact roller surface facing the contact roller side when viewed from the axial direction, at least a part of the contact roller surface is disposed on the center side of the package in the radial direction of the package when viewed from the axial direction, and at least a part of the contact roller surface is set to converge within the following angular range, which is an angular range from 30 degrees upstream of the rotational direction of the package to 30 degrees downstream of the rotational direction of the package with respect to a virtual line segment connecting the contact point of the package and the contact roller to the center of the package.

[0011] According to the present invention, at least a part of the contact roller surface of the end face shield disposed between the end faces of adjacent packages (hereinafter referred to as "between the package end faces") is disposed on the center side of the package in the radial direction of the package, i.e., closer to the center of the package than the outer peripheral surface of the package. In other words, at least a part of the contact roller surface of the end face shield is located on the inner side of the package in the radial direction compared to the outer peripheral surface of the package. Therefore, it is possible to suppress air on the radially outer side of the package from entering the position inside the end face shield, and it is possible to effectively suppress air from flowing into the space between the package end faces. In addition, at least a part of the contact roller surface is provided to converge within an angular range of 30 degrees upstream to 30 degrees downstream in the rotation direction of the package with respect to a virtual line segment. In other words, the end face shield is disposed near the contact point between the package and the contact roller. Therefore, it is possible to suppress air from flowing into the space between the package end faces near the contact point due to the collision of the air flowing along the outer peripheral surface of the package (hereinafter referred to as "peripheral surface accompanying flow") with the contact roller. Therefore, it is possible to suppress the flow disorder of the air existing between the package end faces. As a result, it is possible to effectively suppress the air resistance applied to the end faces of the package, and further improve the effect of reducing power consumption.

[0012] In the thread take-up machine of the present invention, preferably, when viewed from the axial direction, at least a part of the end face shield is disposed on the upstream side in the rotation direction of the package with respect to the virtual line segment.

[0013] According to the present invention, it is possible to suppress a part of the air blocked by the contact roller from flowing into the space between the package end faces in the region on the upstream side in the rotation direction of the package compared to the contact point. As a result, it is possible to suppress the flow disorder of the air existing between the package end faces, and effectively suppress the air resistance applied to the end faces of the package.

[0014] In the thread take-up machine of the present invention, preferably, when viewed from the axial direction, at least a part of the end face shield is disposed on the downstream side in the rotation direction of the package with respect to the virtual line segment.

[0015] According to the present invention, in the region where the air density is reduced due to the collision and blockage of the peripheral surface accompanying flow with the contact roller, i.e., the region on the downstream side in the rotation direction of the package compared to the contact point, it is possible to suppress air from flowing into the space between the package end faces. As a result, it is possible to suppress the flow disorder of the air existing between the package end faces, and effectively suppress the air resistance applied to the end faces of the package.

[0016] In the thread take-up machine of the present invention, preferably, the end face shield has a bobbin surface facing the center side of the package when viewed from the axial direction, and when viewed from the axial direction, the bobbin surface has a curved shape along the rotation direction of the package.

[0017] According to the present invention, the air existing between the end faces of the package flows along the bobbin surface of the end face shroud. The bobbin surface is a curved shape along the rotation direction of the package, and thus the air flowing along the bobbin surface easily flows in the same direction as the rotation direction of the end face of the package. Thereby, an increase in the air resistance that the end face of the package receives from the air flowing between the end faces of the package can be suppressed.

[0018] In the thread winding machine of the present invention, preferably, when viewed from the axial direction, the end face shroud is continuously provided over an angular range of 25 degrees or more in the rotation direction of the package, and at least a part of the end face shroud is continuously provided over an angular range from 20 degrees upstream to 5 degrees downstream in the rotation direction of the package with respect to the reference of the virtual line segment.

[0019] According to the present invention, it is possible to suppress air from flowing into the space between the end faces of the package in both the region immediately upstream and the region immediately downstream of the contact point in the rotation direction of the package.

[0020] Another configuration of the thread winding machine of the present invention is characterized by including: a bobbin support extending along a predetermined axial direction, on which a plurality of bobbins for winding a plurality of threads respectively are arranged and mounted in the axial direction; a contact roller extending along the axial direction and abutting against the outer peripheral surfaces of a plurality of packages formed by winding the plurality of threads on the plurality of bobbins respectively; and an end face shroud disposed in at least one of a plurality of spaces formed between the end faces of the packages adjacent to each other in the axial direction, the end face shroud having a contact roller surface facing the contact roller side when viewed from the axial direction, and at least a part of the contact roller surface is disposed on the center side of the package with respect to the outer peripheral surface of the package in the radial direction of the package when viewed from the axial direction. The thread winding machine includes a moving mechanism that moves the end face shroud between an end face position and a retracted position. The end face position is a position where at least a part of the end face shroud is disposed in the space between the end faces of the adjacent packages, and the retracted position is a position radially outside the package compared to the end face position. The end face position is a position closer to the contact point between the package and the contact roller in the circumferential direction of the package than the retracted position.

[0021] According to the present invention, at least a part of the end-face intermediate cover located at the position between end-faces is disposed between the end-faces of adjacent packages (hereinafter referred to as "between the end-faces of the packages"). Then, at least a part of the contact roller surface of the end-face intermediate cover disposed between the end-faces of the packages is disposed on the center side of the package in the radial direction of the package relative to the outer peripheral surface of the package. In other words, at least a part of the contact roller surface of the end-face intermediate cover is located on the inner side of the outer peripheral surface of the package in the radial direction of the package. Therefore, it is possible to suppress air on the radially outer side of the package from entering a position inside the end-face intermediate cover, and it is possible to effectively suppress air from flowing into the space between the end-faces of the packages. In addition, the position between end-faces is a position closer to the contact point between the package and the contact roller in the circumferential direction of the package than the retracted position. In other words, the end-face intermediate cover is provided near the contact point. Therefore, it is possible to suppress air from flowing into the space between the end-faces of the package near the contact point due to the collision of the air flowing along the outer peripheral surface of the package (hereinafter referred to as "peripheral surface accompanying flow") with the contact roller. Therefore, it is possible to suppress the flow disorder of the air existing between the end-faces of the package. As a result, it is possible to effectively suppress the air resistance applied to the end-faces of the package, and further improve the effect of reducing power consumption.

[0022] In addition, according to the present invention, the following effects can be obtained. Immediately after the start of winding of the thread, the package diameter is very small, so the contact roller and the bobbin approach each other in the radial direction of the package. Therefore, depending on the positional relationship between the end-face intermediate cover and the contact roller, the end-face intermediate cover may interfere with the bobbin immediately after the start of winding of the thread. In this regard, according to the present invention, immediately after the start of winding of the thread, by moving the end-face intermediate cover to the retracted position, it is possible to reliably avoid the end-face intermediate cover from interfering with the bobbin. Then, when the diameter of the package increases due to the winding of the thread onto each bobbin and the distance between the contact roller and the bobbin becomes sufficiently large, the end-face intermediate cover can be moved to the position between the end-faces. As a result, it is possible to suppress air from flowing into the space between the end-faces of the package while avoiding the end-face intermediate cover from interfering with the bobbin.

[0023] The thread winding machine of the present invention preferably includes a moving mechanism that moves the end-face intermediate cover between the position between the end-faces and the retracted position, the position between the end-faces being a position where at least a part of the end-face intermediate cover is disposed in the space between the end-faces of the adjacent packages, and the retracted position being a position radially outside the position between the end-faces relative to the package.

[0024] At the beginning of the winding of the thread, the package diameter is very small, so the contact roller and the bobbin approach each other in the radial direction of the package. Therefore, depending on the positional relationship between the end face shield and the contact roller, the end face shield may interfere with the bobbin at the beginning of the winding of the thread. According to the present invention, after the winding of the thread starts, the end face shield is moved to the retracted position, thereby reliably avoiding the interference of the end face shield with the bobbin. Then, when the diameter of the package increases due to the winding of the thread onto each bobbin and the distance between the contact roller and the bobbin becomes large enough, the end face shield can be moved to the end face position. Thus, while avoiding the interference of the end face shield with the bobbin, the inflow of air between the end faces of the package can be suppressed.

[0025] The thread winding machine of the present invention preferably includes: a sensor that detects information related to the diameter size of the plurality of packages; and a control unit that controls the driving of the moving mechanism. The control unit calculates the diameter size of the plurality of packages based on the information related to the diameter size of the plurality of packages, and when the diameter of the plurality of packages reaches a specified size, controls the moving mechanism to move the end face shield from the retracted position to the end face position.

[0026] According to the present invention, when the diameter of the package reaches a specified size that can sufficiently ensure the distance between the contact roller and the bobbin, the end face shield can be moved to the end face position. Thus, the interference between the end face shield and the bobbin can be more reliably avoided.

[0027] The thread winding machine of the present invention preferably includes a control unit that controls the driving of the moving mechanism. The control unit controls the moving mechanism to move the end face shield from the retracted position to the end face position at a specified timing calculated based on the winding elapsed time since the start of winding the thread onto the bobbin.

[0028] According to the present invention, at a specified timing when the diameter of the package reaches a size that can sufficiently ensure the distance between the contact roller and the bobbin, the end face shield can be moved to the end face position. Thus, the interference between the end face shield and the bobbin can be more reliably avoided.

[0029] In the thread winding machine of the present invention, preferably, the end face shields are respectively disposed in the plurality of spaces.

[0030] According to the present invention, the inflow of air between the end faces of all the packages can be effectively suppressed. In addition, the flow disorder of the air existing between the end faces of all the packages can be suppressed. Thus, the air resistance applied to the end faces of each package can be effectively suppressed.

[0031] In the thread take-up machine of the present invention, preferably, in the axial direction, the size of the gap between the end face shroud and the package is 3 to 5 mm.

[0032] According to the present invention, within a range where contact between the end face shroud and the end face of the package can be avoided, the end face shroud is made as close as possible to the end face of the package. Therefore, air flow into the space between the end faces of the package from the radially outer side of the package can be more effectively suppressed.

[0033] In the thread take-up machine of the present invention, preferably, when viewed from the axial direction, the distance between the contact roller surface and the contact point is 5 to 10 mm.

[0034] According to the present invention, within a range where contact between the end face shroud and the contact roller can be avoided, the contact roller surface is made as close as possible to the contact point. Therefore, air flow into the space between the end faces of the package near the contact point due to the collision of the peripheral surface accompanying flow with the contact roller can be suppressed as much as possible by the end face shroud. Thereby, an increase in the air resistance applied to the end face of the package can be more effectively suppressed.

[0035] In the thread take-up machine of the present invention, preferably, when viewed from the axial direction, the end face shroud is continuously provided over an angular range of 25 degrees or more in the rotation direction of the package.

[0036] According to the present invention, air flow into the space between the end faces of the package can be suppressed over a wide range in the rotation direction of the package.

[0037] The thread take-up machine of the present invention preferably includes a circumferential shroud that is provided to locally surround the outer peripheral surfaces of the plurality of packages in the circumferential direction of the packages.

[0038] According to the present invention, peeling of the peripheral surface accompanying flow from the outer peripheral surface of the package can be suppressed. In addition, air flow from the space around the package into the region along the outer peripheral surface of the package (hereinafter referred to as the "outer peripheral surface region") can be suppressed.

[0039] In the thread take-up machine of the present invention, preferably, the circumferential shroud is provided at a position on the downstream side in the rotation direction of the package with respect to the contact point.

[0040] According to the present invention, in a region where the air density is reduced due to the collision and blockage of the peripheral surface accompanying flow with the contact roller, that is, in a region on the downstream side in the rotation direction of the package with respect to the contact point, air flow into the outer peripheral surface region can be suppressed. In addition, air flow from the outer peripheral surface region into the space between the end faces of the package can be suppressed. Thereby, the air resistance applied to the package can be suppressed.

[0041] The thread take-up machine of the present invention preferably includes a support member that supports the contact roller, and the circumferential shroud is directly or indirectly mounted on the support member.

[0042] According to the present invention, there is no need to separately provide a component for supporting the circumferential mask.

[0043] In the thread take-up machine of the present invention, preferably, the end face intermediate mask is directly or indirectly mounted on the circumferential mask.

[0044] According to the present invention, there is no need to separately provide a component for supporting the end face intermediate mask.

[0045] In the thread take-up machine of the present invention, preferably, the moving mechanism has a connecting component that moves in a direction extending along the circumferential mask when viewed from the axial direction, the connecting component is connected to the circumferential mask and the end face intermediate mask, and the moving mechanism moves the connecting component along the direction in which the circumferential mask extends, thereby moving the end face intermediate mask between the end face intermediate position and the retracted position.

[0046] According to the present invention, by moving the connecting component with the circumferential mask as a reference point, the end face intermediate mask can be moved between the end face intermediate position and the retracted position. Therefore, as a component serving as a reference point when moving the connecting component, there is no need to provide a component other than the circumferential mask, and the number of components can be reduced.

[0047] In the thread take-up machine of the present invention, preferably, the connecting component can expand and contract in the radial direction of the package.

[0048] According to the present invention, when the end face intermediate mask is in the retracted position, bringing the end face intermediate mask closer to the circumferential mask can move the end face intermediate mask as far away from the bobbin as possible. Therefore, the risk of the end face intermediate mask interfering with the bobbin can be reduced. In addition, when the end face intermediate mask is in the end face intermediate position, the end face intermediate mask can expand and contract in the radial direction of the package. Thereby, the end face intermediate mask can be disposed at a position where air inflow into the end face of the package can be most effectively suppressed.

[0049] The thread take-up machine of the present invention preferably includes: two of the bobbin supports; and a rotatable turntable that supports each of the bobbin supports, and each of the bobbin supports can rotate and move between a winding position where thread is wound around the bobbin and a standby position different from the winding position by the rotation of the turntable. When viewed from the axial direction, the circumferential mask is disposed outside the rotation orbits of the plurality of packages that rotate and move together with the bobbin supports.

[0050] According to the present invention, in a configuration having two bobbin supports, contact between the package that rotates and moves as the turntable rotates and the circumferential mask can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 is a schematic side view of the spinning and drawing device according to the present embodiment.

[0052] Figure 2 It is the front view of the wire coiling machine.

[0053] Figure 3 It is a partial perspective view of the wire coiling machine including the vicinity of the front end of the bobbin holder in the coiling position.

[0054] Figure 4 It is a partial front view of the wire coiling machine including the vicinity of the bobbin holder in the coiling position.

[0055] Figure 5 It is a partial side view when observing the wire coiling machine from the right side.

[0056] Figure 6 It is a partial front view of the wire coiling machine showing the situation when the end face mask is in the retracted position.

[0057] Figure 7 It is a partial front view of the wire coiling machine showing the situation when the end face mask moves to the end face between position.

[0058] Figure 8 It is a block diagram showing the electrical configuration of the wire coiling machine.

[0059] Figure 9 It is a table showing the suppression effect of the air resistance of the wire coiling machine according to the embodiment.

[0060] Figure 10 It is the front view of the wire coiling machine according to the modified example.

[0061] Explanation of symbols

[0062] 4 Wire coiling machine

[0063] 23 Turntable

[0064] 24 Bobbin holder

[0065] 25 Contact roller

[0066] 26 Control unit

[0067] 28 Frame (support member)

[0068] 40 End face mask

[0069] 41 Contact roller surface

[0070] 42 Bobbin surface

[0071] 50 Peripheral mask

[0072] 60 Moving mechanism

[0073] 61 Rod-shaped member (connecting member)

[0074] 62 Rail

[0075] 70 Space

[0076] 90 Sensor

[0077] B Bobbin

[0078] C Contact Point

[0079] E End Face

[0080] P Package

[0081] Q Center

[0082] S Gap

[0083] V Virtual Line Segment

[0084] Y Thread Detailed Implementation Manner

[0085] (Spinning and Drawing Device 1)

[0086] Hereinafter, a preferred implementation manner of the present invention will be described with reference to the accompanying drawings. Figure 1 is a schematic side view of the spinning and drawing device 1 having the thread take-up machine 4 according to this implementation manner. Figure 1 The up-down direction of the paper surface is set as the up-down direction in which gravity acts, and the left-right direction of the paper surface is set as the front-back direction. Figure 1 The direction perpendicular to the paper surface is set as the left-right direction, the front side of the paper surface is set as the right side, and the back side of the paper surface is set as the left side. Hereinafter, these directions will be appropriately used for description. Figure 1 In addition, the description of the end face cover 40 and the circumferential cover 50, which will be described later, is omitted.

[0087] The spinning and drawing device 1 includes: a first guide roller 8, a second guide roller 9, and a thread restricting guide 7 for drawing the thread Y spun from the spinning device 3; and a thread take-up machine 4 for winding the drawn thread Y onto a plurality of bobbins B to form a plurality of packages P.

[0088] The first guide roller 8 is a roller whose axial direction is substantially parallel to the left-right direction, and is disposed above the front end portion of the thread take-up machine 4. The first guide roller 8 is rotationally driven by a motor (not shown). The second guide roller 9 is a roller whose axial direction is substantially parallel to the left-right direction, and is disposed at a position above and behind the first guide roller 8. The second guide roller 9 is rotationally driven by a motor (not shown).

[0089] The thread restricting guide 7 is disposed above the first guide roller 8. The thread restricting guide 7 is, for example, a well-known comb-shaped guide, and is used to define the interval between adjacent threads Y as a specified value when a plurality of threads Y are hooked.

[0090] (Thread Take-up Machine 4)

[0091] Next, the thread take-up machine 4 will be described using Figure 1 and Figure 2 as references. Figure 2 Fig. is the front view of the thread take-up machine 4. As Figure 1 and Figure 2 shown, the thread take-up machine 4 includes a machine body 20, a plurality of traversing fulcrum thread guides 21, a plurality of traversing thread guides 22, a turntable 23, two bobbin holders 24, a contact roller 25, and a control unit 26, etc.

[0092] As Figure 1 shown, the machine body 20 has: a machine body main part 27 erected and disposed at the rear of the thread take-up machine 4; and a frame 28 (the supporting member of the present invention) fixed to the upper part of the machine body main part 27 and extending forward. The turntable 23 etc. are supported on the machine body main part 27. The contact roller 25 extending in the front-rear direction is supported on the frame 28.

[0093] The plurality of traversing fulcrum thread guides 21 are provided individually for a plurality of threads Y and arranged in the front-rear direction. The plurality of traversing fulcrum thread guides 21 are mounted on a thread guide supporting member 29 supported by the frame 28, and a plurality of threads Y are respectively hooked thereon, thereby becoming the fulcrums when the plurality of threads Y are traversed respectively.

[0094] The plurality of traversing thread guides 22 are provided individually for a plurality of threads Y and arranged in the front-rear direction. The plurality of traversing thread guides 22 are driven by a traversing motor 35 (refer to Figure 8 ) to reciprocate in the front-rear direction. Thus, the thread Y hooked on the traversing thread guide 22 traverses with the traversing fulcrum thread guide 21 as the fulcrum.

[0095] The turntable 23 is a disk-shaped member whose axis is substantially parallel to the front-rear direction, and is supported by the machine body main part 27 so as to be rotatable. The turntable 23 is rotationally driven by a turntable motor 36 (refer to Figure 8 ). The turntable 23 cantilever-supports the two bobbin holders 24 and rotates about a rotation axis substantially parallel to the front-rear direction, thereby moving the two bobbin holders 24. Thus, in the thread take-up machine 4, it is possible to replace the bobbin holder 24 at the winding position ( Figure 1 the upper side position in ) where the thread Y is wound onto the bobbin B, and the bobbin holder 24 at the standby position ( Figure 1 the lower side position in ) where the thread Y is not wound. Then, during the winding of the thread Y onto the bobbin B mounted on the bobbin holder 24 at the winding position, it is possible to replace the bobbin B on the bobbin holder 24 at the standby position. In addition, the turntable 23 is configured to be able to rotate as the amount of the thread Y wound on the bobbin B increases during the winding of the thread Y. Specifically, as the winding amount of the thread Y onto the bobbin B increases, the turntable 23 rotates counterclockwise.

[0096] Two bobbin holders 24 are used to respectively mount a plurality of bobbins B. The two bobbin holders 24 are respectively rotatably supported on a turntable 23 supported by a body main body 27, and extend forward from the turntable 23. Specifically, as Figure 2 shown, when viewed from the front-rear direction, the two bobbin holders 24 are respectively supported on the turntable 23 at positions that are point-symmetrical to each other with the rotation center of the turntable 23 as the center. The axial directions of the two bobbin holders 24 are substantially parallel to the front-rear direction. In addition, the front end side (front side) of the bobbin holder 24 is generally the operation side for performing operations such as mounting the bobbin B to the bobbin holder 24.

[0097] On each bobbin holder 24, a plurality of bobbins B provided separately for a plurality of silk threads Y are arranged and mounted in the front-rear direction. The number of bobbins B mounted on one bobbin holder 24 is, for example, 16. In addition, the two bobbin holders 24 are respectively rotationally driven by separate take-up motors 37, 38 (refer to Figure 8 ). In addition, in the present embodiment, the rotation direction of the bobbin holder 24 when viewed from the front is Figure 2 the counterclockwise direction in Figure 2 (refer to the solid line arrow in

[0098] As Figure 1 shown, the contact roller 25 extends along the front-rear direction. As Figure 1 and Figure 2 shown, the contact roller 25 is a roller whose axial direction is substantially parallel to the front-rear direction, and is disposed directly above the bobbin holder 24 at the upper take-up position. The contact roller 25 abuts against the outer peripheral surfaces of a plurality of packages P formed by respectively taking up a plurality of silk threads Y on a plurality of bobbins B mounted on the bobbin holder 24 at the take-up position, thereby applying a contact pressure to the outer peripheral surface of the package P during take-up to adjust the shape of the package P.

[0099] In the present embodiment, the contact roller 25 is swingably supported on the frame 28 via a roller support member 30. As Figure 1 and Figure 2 shown, the roller support member 30 has, for example, a support portion 31, an arm portion 32, and a swing shaft 33. The support portion 31 supports the contact roller 25 rotatably at both ends in the front-rear direction of the contact roller 25. One end of the arm portion 32 is connected to the support portion 31 and extends toward the frame 28 in a direction orthogonal to the front-rear direction. The swing shaft 33 is connected to the other end of the arm portion 32 and extends along the front-rear direction, and is swingably supported on the frame 28. The arm portion 32 is configured to be swingable about the swing shaft 33 (refer to the dashed line arrow in Figure 2 ).

[0100] The control unit 26 includes a CPU, a ROM, a RAM, and the like. The control unit 26 controls each part through the CPU according to the program stored in the ROM. Specifically, the control unit 26 controls the traverse motor 35, the turntable motor 36, the take-up motors 37, 38, the moving mechanism motor 63 described later, and the sensor 90 described later, and the like.

[0101] In the thread take-up machine 4 having the above-described configuration, when the bobbin holder 24 at the take-up position is rotationally driven, the thread Y traversed by the traverse guide 22 is wound around the bobbin B to form a package P. At this time, the package P rotates together with the rotating bobbin holder 24. That is, the rotation direction of the package P is the same as the rotation direction of the bobbin holder 24, which is Figure 2 the counterclockwise direction in Figure 2 (see the solid arrow in Figure 2 ). During the formation of the package P, the contact roller 25 abuts against the outer peripheral surface of the package P to apply a contact pressure, thereby adjusting the shape of the package P. The contact roller 25 rotates in the direction opposite to the rotation direction of the bobbin holder 24, that is, Figure 2 the clockwise direction in (see the solid arrow in

[0102] Figures 2 to 5 ). When winding the thread Y around the bobbin B in the present embodiment, the thread Y in contact with the right side of the contact roller 25 is sent along the circumferential direction of the contact roller 25 to the downstream side in the rotation direction of the contact roller 25. Then, the thread Y passes over the contact point C between the package P (or the bobbin B just after the start of winding of the thread Y around the bobbin B) and the contact roller 25, and is sent along the circumferential direction of the package P to the downstream side in the rotation direction of the package P. Figure 3 FIG. is a partial perspective view of the thread take-up machine 4 including the vicinity of the front end of the bobbin holder 24 at the take-up position. Figure 4 FIG. is a partial front view of the thread take-up machine 4 including the vicinity of the bobbin holder 24 at the take-up position. Figure 5 FIG. is a partial side view when observing the thread take-up machine 4 from the right side.

[0103] (End face shield 40)

[0104] As shown in Figure 3As shown, a plurality of end face enclosures 40 are respectively disposed in a plurality of spaces 70 formed between end faces E of packages P adjacent to each other in the front-rear direction (hereinafter referred to as "between package end faces"). Specifically described, in the present embodiment, filaments Y are respectively wound around 16 bobbins B mounted on a bobbin holder 24 in the winding position to form 16 packages P. Then, 15 spaces 70 are formed between the end faces of the 16 packages P. Each end face enclosure 40 is disposed in each of the 15 spaces 70. In addition, in the present embodiment, a space 70 is formed between the end faces E of adjacent packages P, while no space is formed between the end faces of adjacent bobbins B. That is, adjacent bobbins B are in contact with each other without a gap (refer to Figure 1 , Figure 5 ).

[0105] As Figure 4 shown, each end face enclosure 40 has a contact roller surface 41 and a bobbin surface 42. The contact roller surface 41 is a surface facing the contact roller 25 side when viewed from the front-rear direction. In other words, the contact roller surface 41 is a surface facing the radially outer side of the package P. The bobbin surface 42 is a surface facing the center Q side of the package P when viewed from the front-rear direction. In other words, the bobbin surface 42 is a surface facing the radially inner side of the package P. Further in other words, the bobbin surface 42 is a surface facing the center side of the bobbin B when viewed from the front-rear direction. When viewed from the front-rear direction, the center of the bobbin B coincides with the center Q of the package P.

[0106] As Figure 4 shown, the contact roller surface 41 is disposed at a position closer to the center Q of the package P than the outer peripheral surface of the package P in the radial direction of the package P. In other words, the contact roller surface 41 is disposed at a position closer to the center Q of the package P than the contact point C in the radial direction of the package P. In the present embodiment, the contact roller surface 41 is disposed at a position closer to the center Q of the package P than the contact point C between the package P and the contact roller 25 when the package diameter becomes a specified size. The specified package diameter is larger than the package diameter at the beginning of winding the filament Y around the bobbin B (for example, 120 mm) and smaller than the package diameter at the end of winding the filament Y around the bobbin B (i.e., the full-wound diameter, for example, 380 mm). The specified package diameter is, for example, 200 mm.

[0107] When viewed from the front-rear direction, the distance between the contact roller surface 41 and the contact point C is preferably 5 to 10 mm. The distance mentioned here is the shortest distance between the contact roller surface 41 and the contact point C. In the present embodiment, when viewed from the front-rear direction, the distance between the contact roller surface 41 and the contact point C is, for example, 5 mm.

[0108] As Figure 4As shown, when viewed from the front-rear direction, the bobbin surface 42 forms a curved shape along the rotation direction of the package P. Specifically, when viewed from the front-rear direction, the bobbin surface 42 forms an arc shape along the rotation direction of the package P. The rotation direction of the package P mentioned here is the rotation direction of the end face E of the package P. In the present embodiment, when viewed from the front-rear direction, the contact roller surface 41 also forms an arc shape along the rotation direction of the package P.

[0109] In addition, as Figure 4 shown, when viewed from the front-rear direction, at least a part of the contact roller surface 41 is set to converge within an angular range of 30 degrees upstream to 30 degrees downstream of the rotation direction of the package P with respect to the virtual line segment V connecting the contact point C and the center Q of the package P. The upstream side of the rotation direction of the package P refers to an angular range of 180 degrees clockwise with respect to the virtual line segment V in the end face E of the package P when viewed from the front side. The downstream side of the rotation direction of the package P refers to an angular range of 180 degrees counterclockwise with respect to the virtual line segment V in the end face E of the package P when viewed from the front side.

[0110] When further explaining, as Figure 4 shown, when viewed from the front-rear direction, a part of the end-face-to-end-face cover 40 is provided at a position upstream of the virtual line segment V in the rotation direction of the package P. Moreover, when viewed from the front-rear direction, another part of the end-face-to-end-face cover 40 is provided at a position downstream of the virtual line segment V in the rotation direction of the package P.

[0111] When viewed from the front-rear direction, the end-face-to-end-face cover 40 is continuously provided over an angular range of 25 degrees or more in the rotation direction of the package P. More specifically, when viewed from the front-rear direction, a part of the end-face-to-end-face cover 40 is continuously provided over an angular range from 20 degrees upstream to 5 degrees downstream of the rotation direction of the package P with respect to the virtual line segment V. In other words, when viewed from the front-rear direction, the angle θ1 (refer to Figure 4 ) formed by the line segment V1 connecting the upstream end 40a of the end-face-to-end-face cover 40, which is upstream of the virtual line segment V in the rotation direction of the package P, and the center Q of the package P, and the virtual line segment V is 20 degrees or more. Then, when viewed from the front-rear direction, the angle θ2 (refer to Figure 4)is 5 degrees or more. Further, when viewed from the front-rear direction, the end-face shroud 40 is continuously provided (i.e., without a gap) from the upstream end 40a to the downstream end 40b. In the present embodiment, preferably, when viewed from the front-rear direction, the end-face shroud 40 is continuously provided in an angular range of, for example, 30 degrees upstream of the rotation direction of the package P to 15 degrees downstream of the rotation direction of the package P with respect to the virtual line segment V as a reference. That is, preferably, θ1 is 30 degrees and θ2 is 15 degrees. However, the end-face shroud 40 is not limited to such a configuration.

[0112] Further, as Figure 5 shown, in the front-rear direction, the size S of the gap between the end-face shroud 40 and the end face E of the package P is preferably 3 to 5 mm. The gap referred to here is the shortest distance between the end-face shroud 40 and the end face E of the package P. In the present embodiment, in the front-rear direction, the size S of the gap between the end-face shroud 40 and the end face E of the package P is, for example, 5 mm.

[0113] (Peripheral shroud 50)

[0114] As Figure 4 shown, the peripheral shroud 50 is provided so as to locally surround the outer peripheral surfaces of a plurality of packages P in the circumferential direction of the package P. More specifically, the peripheral shroud 50 is provided, for example, along the circumferential direction of the package P when the package diameter becomes the full-wound diameter. Further, the peripheral shroud 50 is provided at a position on the downstream side of the contact point C in the rotation direction of the package P. For the peripheral shroud 50, the downstream side of the contact point C in the rotation direction of the package P means the upper side of the straight line connecting the contact point C and the center Q of the package P (i.e., the extension line of the virtual line segment V).

[0115] Further, when viewed from the front-rear direction, the peripheral shroud 50 is disposed outside the rotation orbits of a plurality of packages P that rotate and move together with the bobbin holder 24 as the turntable 23 rotates. The rotation orbit M of the bobbin holder 24 that rotates and moves as the turntable 23 rotates is indicated by Figure 2 the double-dot chain line in. Further, in the present embodiment, in the radial direction of the package P, the distance between the peripheral shroud 50 and the center Q of the package P is greater than the distance between each end-face shroud 40 and the center Q of the package P (see Figure 4 ). In other words, the peripheral shroud 50 is disposed at a position radially outside of each end-face shroud 40 with respect to the package P.

[0116] In the present embodiment, the shortest distance between the circumferential mask 50 and the contact point C is preferably as close as possible within the range where the circumferential mask 50 does not contact the contact roller 25, for example, 25 mm. The circumferential mask 50 is preferably continuously provided over an angular range of 45 degrees or more along the circumferential direction of the package P. In the present embodiment, the circumferential mask 50 is continuously provided over an angular range of 60 degrees along the circumferential direction of the package P. Further, in the present embodiment, in the circumferential direction of the package P, a part of the circumferential mask 50 overlaps with a part of the end face intermediate mask 40 (see Figure 4 ).

[0117] Moreover, as shown in Figure 3 , the circumferential mask 50 extends in the front-rear direction. The length of the circumferential mask 50 in the front-rear direction is substantially the same as the length of the bobbin holder 24 in the front-rear direction.

[0118] As shown in Figure 4 , the circumferential mask 50 is attached to the frame 28 via the connecting member 80. In other words, the circumferential mask 50 is indirectly attached to the frame 28. One end of the connecting member 80 is connected to the frame 28, and the other end of the connecting member 80 is connected to the circumferential mask 50. One end of the connecting member 80 is located above and to the left of the other end of the connecting member 80. Further, the connecting member 80 may extend in the front-rear direction, for example. However, the connecting member 80 is not limited to such a configuration.

[0119] Further, as shown in Figure 3 and Figure 4 , the circumferential mask 50 is connected to each end face intermediate mask 40 via a plurality of rod-shaped members 61, respectively. In other words, each end face intermediate mask 40 is attached to the circumferential mask 50 via the rod-shaped member 61. More specifically, each end face intermediate mask 40 is indirectly attached to the circumferential mask 50. As shown in Figure 4 , one end of the rod-shaped member 61 is connected to the circumferential mask 50, and the other end of the rod-shaped member 61 is connected to the bobbin surface 42 of the end face intermediate mask 40. In the present embodiment, the other end of the rod-shaped member 61 is connected to the bobbin surface 42 near the downstream end 40b of the end face intermediate mask 40, but is not limited to such a configuration. Further, as shown in Figure 3 , the plurality of rod-shaped members 61 respectively connected to the plurality of end face intermediate masks 40 are connected to the circumferential mask 50.

[0120] (Moving mechanism 60)

[0121] The thread winding machine 4 of the present embodiment includes a moving mechanism 60 for moving the plurality of end face intermediate masks 40. Hereinafter, the moving mechanism 60 will be described in detail with reference to Figure 3 , Figure 4 , Figure 6 , Figure 7 .

[0122] The moving mechanism 60 is used to move the plurality of between-end-face covers 40 between the between-end-face positions ( Figure 3 , Figure 4 and Figure 7 positions) and the retracted positions ( Figure 6 positions). The between-end-face position is the position where at least a part of each between-end-face cover 40 is disposed in each of the spaces 70 between the winding end faces. In the present embodiment, the between-end-face position is the position where all of the between-end-face covers 40 are disposed in each of the spaces 70. When further described, the between-end-face position in the present embodiment is the position of the between-end-face cover 40 when at least a part of the contact roller surface 41 converges within an angular range of 30 degrees upstream and 30 degrees downstream in the rotation direction of the winding P with respect to the virtual line segment V. The retracted position is a position radially outside the between-end-face position with respect to the winding P. When further described, the retracted position is the position where the between-end-face cover 40 is disposed outside the rotation orbit of the bobbin B that rotates and moves together with the bobbin holder 24 as the turntable 23 rotates.

[0123] As Figure 3 shown in FIGS. 4, the moving mechanism 60 has the above-described plurality of rod-shaped members 61 and a plurality of rails 62. Each rail 62 extends in the left-right direction and is provided along the inner surface of the circumferential cover 50. The inner surface of the circumferential cover 50 is a surface facing radially inward of the winding P. In other words, the inner surface of the circumferential cover 50 is a surface facing the center Q side of the winding P. The rail 62 supports one end of the rod-shaped member 61 so as to be slidable. In other words, one end of the rod-shaped member 61 is connected to the circumferential cover 50 via the rail 62.

[0124] As described above, the other end of the rod-shaped member 61 is connected to the between-end-face cover 40. Due to such a configuration, each rod-shaped member 61 slides along the corresponding rail 62, whereby the between-end-face cover 40 connected to the other end of the rod-shaped member 61 can move between the between-end-face position and the retracted position. The rod-shaped member 61 corresponds to the connecting member of the present invention. The sliding of the rod-shaped member 61 along the rail 62 is driven, for example, by a motor 63 for the moving mechanism (see Figure 8 ). The driving of the motor 63 for the moving mechanism is controlled by the control unit 26. In the present embodiment, the sliding of the plurality of rod-shaped members 61 is centrally controlled.

[0125] (Sensor 90)

[0126] In addition, the silk winder 4 of the present embodiment has a sensor 90 (see Figure 1)。The sensor 90 is, for example, a sensor that detects the inclination of the axis of the bobbin holder 24 with respect to the front-rear direction. The inclination of the bobbin holder 24 depends on the weights of the plurality of packages P that increase as the diameter of each package P increases, which corresponds to the "information related to the diameter size of the package P" of the present invention. The information related to the inclination of the bobbin holder 24 detected by the sensor 90 is sent to the control unit 26.

[0127] The control unit 26 calculates the diameters of the plurality of packages P based on the inclination of the bobbin holder 24. Then, when the diameters of the plurality of packages P reach a specified size, the control unit 26 controls the moving mechanism 60 to move each end face cover 40 from the retracted position to the end face between position. The specified package diameter is, for example, 200 mm. In addition, the "information related to the diameter size of the package P" is not limited to the inclination of the bobbin holder 24 described above. For example, when the sensor 90 is an optical sensor or the like and detects the coordinate position of the outer peripheral surface of each package P, the coordinate position of the outer peripheral surface of each package P is the "information related to the diameter size of the package P".

[0128] (Thread winding operation)

[0129] Next, the thread winding operation performed by the thread winding machine 4 will be described. First, at the start of winding the thread Y around the bobbin B, as Figure 6 shown, the bobbin B mounted on the bobbin holder 24 at the winding position contacts the contact roller 25. At this time, each end face cover 40 is in the retracted position. Each end face cover 40 in the retracted position is arranged at a position radially inside the circumferential cover 50 with respect to the package P. In addition, at the start of winding the thread Y around the bobbin B, the contact roller 25 is in a state where it has swung a certain amount clockwise about the swing axis 33 from the position shown in Figure 4 (see the solid arrow in Figure 6 ).

[0130] When the diameter of the package P increases as the winding of the thread Y around the bobbin B progresses, the contact roller 25 moves to the position shown in Figure 4 . That is, the contact roller 25 swings a certain amount counterclockwise about the swing axis 33. In addition, as the diameter of the package P increases with the increase in the winding amount of the thread Y around the bobbin B, the turntable 23 gradually rotates a small amount counterclockwise (see the solid arrow in Figure 2 ). As a result, as the diameter of the package P increases, the bobbin holder 24 gradually moves a small amount downward to the left. As a result, even when the diameter of the package P increases, the coordinate position of the contact point C between the package P and the contact roller 25 when viewed from the front-rear direction hardly changes.

[0131] In the winding of the wire Y, the control unit 26 always or at regular intervals calculates the diameter sizes of the plurality of packages P based on the inclination of the bobbin holder 24 detected by the sensor 90. When the diameters of the plurality of packages P reach a specified size (for example, 200 mm), the control unit 26 controls the moving mechanism 60 to move each end face shield 40 from the retracted position to the end face between position (refer to Figure 7 the solid arrow). Then, in the state of Figure 7 , the wire Y is wound until the package P reaches the full winding diameter.

[0132] (Suppression effect of air resistance of the wire winder according to the embodiment)

[0133] Next, regarding the suppression effect of air resistance of the wire winders according to Embodiments 1 and 2, as shown in Figure 9 . The wire winder according to Embodiment 1 is a wire winder having an end face shield 40 and not having a circumferential shield 50. The wire winder according to Embodiment 2 is a wire winder having an end face shield 40 and a circumferential shield 50 (the same as the wire winder 4 in the above-described embodiment). In addition, the wire winders of Embodiment 1 and Embodiment 2 have a moving mechanism 60 for moving the end face shield 40. Regarding the end face shield 40, the circumferential shield 50, and the moving mechanism 60, the configurations are the same as those in the above-described embodiment.

[0134] Figure 9 shows the suppression rate (%) of air resistance suppressed by the wire winders according to Embodiment 1 and Embodiment 2 compared with the wire winder according to the comparative example. The wire winder according to the comparative example is a wire winder not having an end face shield 40 and a circumferential shield 50. Figure 9 shows the simulated values (%) of the suppression rate of air resistance of the wire winders according to Embodiment 1 and Embodiment 2 relative to the air resistance of the wire winder according to the comparative example. Figure 9 The suppression rate of air resistance in is the suppression rate of the air resistance applied to the outer peripheral surface of each package P ( Figure 9 the upper part), the suppression rate of the air resistance applied to the end face E of each package P ( Figure 9 the middle part), and the suppression rate of the air resistance applied to the entire package P (that is, the sum of the air resistance applied to the outer peripheral surface of the package P and the air resistance applied to the end face E) ( Figure 9 the lower part). Each air resistance is the air resistance from the start to the end of the winding of the wire Y onto the bobbin B. The package diameter at the start of winding is set to 120 mm, and the package diameter at the end of winding (i.e., the full winding diameter) is set to 380 mm.

[0135] The air resistance applied to the outer peripheral surface of each package P refers to the total value of the air resistance applied to the outer peripheral surfaces of the 16 packages P mounted on the bobbin holder 24 in the winding position. The air resistance applied to the outer peripheral surface of the package P is derived based on the speed difference between the speed of the air flowing along the outer peripheral surface of the package P (hereinafter referred to as "outer peripheral surface accompanying flow") and the rotational speed (peripheral speed) of the package P. The air resistance applied to the end face E of each package P refers to the total value of the air resistance applied to the 32 end faces E of the 16 packages P mounted on the bobbin holder 24 in the winding position. The air resistance applied to the end face E of the package P is derived based on the speed difference between the speed of the air in contact with the end face E of the package P and the rotational speed of the end face E of the package P. The air resistance applied to each package P as a whole refers to the total value of the air resistance applied to the outer peripheral surface of each package P and the air resistance applied to the end face E of each package P.

[0136] As Figure 9 shown, in the thread winding machines according to Embodiment 1 and Embodiment 2, compared with the comparative example, it is possible to suppress the air resistance of the entire thread winding machine. In the thread winding machine according to Embodiment 1 having the end face intermediate cover 40 and not having the peripheral surface cover 50, the air resistance applied to the end face E of each package P is suppressed by 22% compared with the comparative example. As a result, in the thread winding machine according to Embodiment 1, compared with the comparative example, a 10% suppression of the air resistance can be achieved in the entire thread winding machine. In addition, in the thread winding machine according to Embodiment 2 having both the end face intermediate cover 40 and the peripheral surface cover 50, the air resistance applied to the outer peripheral surface of each package P is suppressed compared with the comparative example. Moreover, in the thread winding machine according to Embodiment 2, the air resistance applied to the end face E of each package P is further suppressed compared with Embodiment 1. As a result, in the thread winding machine according to Embodiment 2, compared with the comparative example, a 21% suppression of the air resistance can be achieved in the entire thread winding machine.

[0137] From the above results, it can be speculated that by providing the end face intermediate cover 40, the air resistance applied to the thread winding machine can be suppressed, and the effect of reducing power consumption can be fully obtained. Then, it can be speculated that by further providing the peripheral surface cover 50 on the basis of the end face intermediate cover 40, the air resistance applied to the thread winding machine can be more effectively suppressed, and the effect of reducing power consumption can be more effectively obtained.

[0138] (Effect)

[0139] The thread take-up machine 4 of the present embodiment includes: a bobbin support 24 on which a plurality of bobbins B for respectively taking up a plurality of threads Y are mounted; a contact roller 25 that abuts against the outer peripheral surfaces of a plurality of packages P formed by respectively taking up a plurality of threads Y on the plurality of bobbins B; and a plurality of end-face covers 40 respectively disposed in a plurality of spaces 70 formed between the end faces of the packages P adjacent to each other in the front-rear direction. Each end-face cover 40 has a contact roller surface 41 that faces the contact roller 25 side when viewed from the front-rear direction. The contact roller surface 41 is positioned on the center Q side of the package P in the radial direction of the package P, closer than the outer peripheral surface of the package P. Then, when viewed from the front-rear direction, at least a part of the contact roller surface 41 is set to converge within an angular range of 30 degrees upstream to 30 degrees downstream in the rotation direction of the package P with respect to a virtual line segment V connecting the contact point C and the center Q of the package P.

[0140] According to the present embodiment, at least a part of the contact roller surface 41 of the end-face cover 40 disposed between the package end faces is positioned on the center Q side of the package P in the radial direction of the package P, closer than the contact point C. In other words, at least a part of the contact roller surface 41 of the end-face cover 40 is located inside the outer peripheral surface of the package P in the radial direction of the package. Therefore, it is possible to suppress air on the radially outer side of the package P from entering a position inside the end-face cover 40, and effectively suppress air from flowing into the package end faces. In addition, at least a part of the end-face cover 40 is set to converge within an angular range of 30 degrees upstream to 30 degrees downstream in the rotation direction of the package P with respect to the virtual line segment V. In other words, the end-face cover 40 is disposed near the contact point C. Therefore, it is possible to suppress air from flowing into the package end faces near the contact point C due to the collision of the air flowing along the outer peripheral surface of the package P (hereinafter referred to as "peripheral surface accompanying flow") with the contact roller 25. Therefore, it is possible to suppress the flow disorder of the air existing between the rotating package end faces. As a result, it is possible to effectively suppress the air resistance applied to the end faces E of each package P, and further improve the effect of reducing power consumption.

[0141] In addition, in the thread take-up machine 4 of the present embodiment, the end-face covers 40 are respectively disposed in a plurality of spaces 70. Accordingly, it is possible to effectively suppress air from flowing into all the package end faces. In addition, it is possible to suppress the flow disorder of the air existing between all the package end faces. As a result, it is possible to effectively suppress the air resistance applied to the end faces of each package P.

[0142] Further, in the thread take-up machine 4 of the present embodiment, when viewed from the front-rear direction, a part of the inter-end face cover 40 is disposed at a position upstream of the virtual line segment V in the rotation direction of the package P. Accordingly, it is possible to suppress a part of the air blocked by the contact roller 25 from flowing into the space between the end faces of the package in a region upstream of the contact point C in the rotation direction of the package P. Thereby, it is possible to suppress the flow disorder of the air existing between the end faces of the package, and it is possible to effectively suppress the air resistance applied to the end face E of each package P.

[0143] Further, in the thread take-up machine 4 of the present embodiment, when viewed from the front-rear direction, a part of the inter-end face cover 40 is disposed at a position downstream of the virtual line segment V in the rotation direction of the package P. Accordingly, in a region where the density of the air is reduced due to the collision and blockage of the outer peripheral surface accompanying flow by the contact roller 25, that is, in a region downstream of the contact point C in the rotation direction of the package P, it is possible to suppress the air from flowing into the space between the end faces of the package. Thereby, it is possible to suppress the flow disorder of the air existing between the end faces of the package, and it is possible to effectively suppress the air resistance applied to the end face E of each package P.

[0144] Further, in the thread take-up machine 4 of the present embodiment, the inter-end face cover 40 has a bobbin surface 42 that faces the center Q side of the package P when viewed from the front-rear direction. Then, when viewed from the front-rear direction, the bobbin surface 42 has a curved shape along the rotation direction of the package P. Accordingly, the air existing between the end faces of the package flows along the bobbin surface 42 of the inter-end face cover 40. Since the bobbin surface 42 has a curved shape along the rotation direction of the package P, the air flowing along the bobbin surface 42 becomes likely to flow in the same direction as the rotation direction of the end face E of the package P. That is, the speed difference between the speed of the air flowing along the bobbin surface 42 and the rotation speed of the end face E of the package P becomes small. Thereby, it is possible to suppress an increase in the air resistance that the end face E of the package P receives from the air flowing between the end faces of the package.

[0145] Moreover, in the thread take-up machine 4 of the present embodiment, in the front-rear direction, the size of the gap S between the inter-end face cover 40 and the package P is 3 to 5 mm. Accordingly, within a range where contact between the inter-end face cover 40 and the end face E of the package P can be avoided, the inter-end face cover 40 is made as close as possible to the end face E of the package P. Therefore, it is possible to more effectively suppress the air outside the radial direction of the package P from flowing into the space between the end faces of the package.

[0146] In addition, in the thread take-up machine 4 of the present embodiment, when viewed from the front-rear direction, the distance between the contact roller surface 41 and the contact point C is 5 to 10 mm. Accordingly, within a range where contact between the end face intermediate cover 40 and the contact roller 25 can be avoided, the contact roller surface 41 is made as close as possible to the contact point C. Therefore, the end face intermediate cover 40 can suppress as much as possible the inflow of air between the end faces of the package near the contact point C due to the collision of the peripheral surface accompanying flow with the contact roller 25. Thereby, an increase in the air resistance applied to the end face E of each package P can be suppressed more effectively.

[0147] In addition, in the thread take-up machine 4 of the present embodiment, when viewed from the front-rear direction, the end face intermediate cover 40 is continuously provided over an angular range of 25 degrees or more in the rotational direction of the package P. Accordingly, the inflow of air between the end faces of the package can be suppressed over a wide range in the rotational direction of the package P.

[0148] In addition, in the thread take-up machine 4 of the present embodiment, when viewed from the front-rear direction, a part of the end face intermediate cover 40 is continuously provided over an angular range from 20 degrees upstream to 5 degrees downstream in the rotational direction of the package P with respect to the virtual line segment V as a reference. Accordingly, the inflow of air between the end faces of the package can be suppressed in both the region immediately upstream and the region immediately downstream in the rotational direction of the package P with respect to the contact point C.

[0149] Moreover, the thread take-up machine 4 of the present embodiment includes a moving mechanism 60 that moves a plurality of end face intermediate covers 40 between an end face intermediate position where at least a part of each end face intermediate cover 40 is disposed in the space 70 between the end faces E of adjacent packages P and a retracted position that is radially outside of the package P with respect to the end face intermediate position. Immediately after the start of winding of the thread Y, the diameter of the package P is very small, so the contact roller 25 and the bobbin B approach each other in the radial direction of the package P. Therefore, depending on the positional relationship between the end face intermediate cover 40 and the contact roller 25, the end face intermediate cover 40 may interfere with the bobbin B immediately after the start of winding of the thread Y. In particular, in the case where adjacent bobbins B are in contact with each other without a gap (that is, no space is formed between the end faces of adjacent bobbins B) as in the present embodiment, the risk of the end face intermediate cover 40 interfering with the bobbin B becomes greater. This is because it may not be possible to sufficiently secure a setting space for the end face intermediate cover 40 (such as the space between the end faces of adjacent bobbins B) that can avoid interference between the end face intermediate cover 40 and the bobbin B.

[0150] Regarding this point, according to the present embodiment, the end face shield 40 is moved to the retracted position immediately after the winding of the wire Y starts, thereby reliably avoiding interference of the end face shield 40 with the bobbin B. Then, when the diameter of the package P increases due to the winding of the wire Y onto each bobbin B and the distance between the contact roller 25 and the bobbin B becomes large enough, the end face shield 40 can be moved to the end face position. Thereby, while avoiding interference of the end face shield 40 with the bobbin B, air inflow between the package end faces can be suppressed.

[0151] In addition, the wire winding machine 4 of the present embodiment includes: a sensor 90 that detects information related to the diameter sizes of a plurality of packages P; and a control unit 26 that controls the driving of the moving mechanism 60. The control unit 26 calculates the diameter sizes of the plurality of packages P based on the information related to the diameter sizes of the plurality of packages P, and when the diameters of the plurality of packages P reach a specified size, controls the moving mechanism 60 to move each end face shield 40 from the retracted position to the end face position. Accordingly, when the diameter of the package P reaches a specified size at which the distance between the contact roller 25 and the bobbin B can be sufficiently ensured, the end face shield 40 can be moved to the end face position. Thereby, interference between the end face shield 40 and the bobbin B can be more reliably avoided.

[0152] In addition, the wire winding machine 4 of the present embodiment includes a circumferential surface shield 50 provided to locally surround the outer circumferential surfaces of a plurality of packages P in the circumferential direction of the package P. Accordingly, peeling of the outer circumferential surface accompanying flow from the outer circumferential surface of the package P can be suppressed. In addition, air inflow from the space around the package P into the region along the outer circumferential surface of the package P (hereinafter referred to as "outer circumferential surface region") can be suppressed.

[0153] In addition, in the wire winding machine 4 of the present embodiment, the circumferential surface shield 50 is provided at a position downstream of the contact point C in the rotation direction of the package P. Accordingly, in the region where the air density decreases due to the outer circumferential surface accompanying flow colliding with and being blocked by the contact roller 25, that is, in the region downstream of the contact point C in the rotation direction of the package P, air inflow into the outer circumferential surface region can be suppressed. In addition, air inflow from the outer circumferential surface region into the package end faces can be suppressed. Thereby, the air resistance applied to the package P can be suppressed.

[0154] Moreover, the wire winding machine 4 of the present embodiment includes a frame 28 that supports the contact roller 25. Then, the circumferential surface shield 50 is indirectly mounted on the frame 28. Accordingly, there is no need to separately provide a component for supporting the circumferential surface shield 50.

[0155] In addition, in the wire winding machine 4 of the present embodiment, the end face shield 40 is indirectly mounted on the circumferential surface shield 50. Accordingly, there is no need to separately provide a component for supporting the end face shield 40.

[0156] In addition, in the thread take-up machine 4 of the present embodiment, the moving mechanism 60 has a plurality of rod-shaped members 61 that move in a direction extending along the circumferential mask 50 when viewed from the front-rear direction. The plurality of rod-shaped members 61 are respectively connected to the circumferential mask 50 and the plurality of end-face intermediate masks 40. Then, the moving mechanism 60 moves the plurality of rod-shaped members 61 respectively in the direction extending along the circumferential mask 50, thereby moving the plurality of end-face intermediate masks 40 between the end-face intermediate position and the retracted position. Accordingly, by moving the rod-shaped members 61 with the circumferential mask 50 as a reference point, the end-face intermediate mask 40 can be moved between the end-face intermediate position and the retracted position. Therefore, as a member serving as a reference point when moving the rod-shaped members 61, there is no need to provide a member different from the circumferential mask 50, and the number of components can be reduced. Moreover, since there is no need to provide this different member, there is no need to secure a space for providing this different member. Thus, an increase in the size of the apparatus caused by providing this different member can be avoided.

[0157] In addition, the thread take-up machine 4 of the present embodiment includes two bobbin holders 24 and a rotatable turntable 23 that supports each bobbin holder 24. Each bobbin holder 24 can rotate and move between a winding position where the thread Y is wound around the bobbin B and a standby position different from the winding position by the rotation of the turntable 23. Then, when viewed from the front-rear direction, the circumferential mask 50 is disposed outside the rotation orbits of the plurality of packages P that rotate and move together with the bobbin holders 24. Accordingly, in a configuration having two bobbin holders 24, contact between the package P that rotates and moves as the turntable 23 rotates and the circumferential mask 50 can be avoided.

[0158] (Modification example)

[0159] Hereinafter, a modification example in which changes are made to the above-described embodiment will be described. Hereinafter, parts having the same configuration as those in the above-described embodiment are denoted by the same reference numerals, and their description will be appropriately omitted.

[0160] (First modification example)

[0161] A thread take-up machine according to a first modification example different from the above-described embodiment will be described. In addition, similar to the thread take-up machine 4 of the above-described embodiment, the thread take-up machine according to the first modification example has a machine body 20, a plurality of traverse fulcrum thread guides 21, a plurality of traverse thread guides 22, a turntable 23, two bobbin holders 24, a contact roller 25, a control unit 26, and the like. The description of these constituent elements is omitted.

[0162] Similar to the above-described embodiment, the thread take-up machine according to the first modification includes a plurality of between-end-face covers 40 and a moving mechanism 60. The moving mechanism 60 moves the plurality of between-end-face covers 40 between a between-end-face position in each space 70 where at least a part of each between-end-face cover 40 is disposed between the end faces of adjacent packages P and a retracted position that is a position radially outside the between-end-face position with respect to the package P. Moreover, in the first modification, the between-end-face position is a position closer to the contact point C than the retracted position in the circumferential direction of the package P. That is, in the thread take-up machine according to the first modification, the between-end-face cover 40 located at the between-end-face position is located closer to the contact point C than the between-end-face cover 40 located at the retracted position in the circumferential direction of the package P.

[0163] According to this configuration, at least a part of the between-end-face cover 40 located at the between-end-face position is disposed between the end faces of adjacent packages P (hereinafter referred to as between-package end faces). Then, at least a part of the contact roller surface 41 of the between-end-face cover 40 disposed between the between-package end faces is disposed at a position closer to the center Q of the package P than the outer peripheral surface of the package P in the radial direction of the package P. In other words, at least a part of the contact roller surface 41 of the between-end-face cover 40 is located inside the outer peripheral surface of the package P in the radial direction of the package. Therefore, it is possible to suppress air on the radially outer side of the package P from entering a position inside the between-end-face cover 40, and it is possible to effectively suppress air from flowing into the between-package end faces. In addition, the between-end-face position is a position closer to the contact point C than the retracted position in the circumferential direction of the package P. In other words, the between-end-face cover 40 is provided near the contact point C. Therefore, it is possible to suppress air from flowing into the between-package end faces near the contact point C due to the collision of air flowing along the outer peripheral surface of the package P (hereinafter referred to as "peripheral surface accompanying flow") with the contact roller 25. Therefore, it is possible to suppress the flow disorder of the air existing between the between-package end faces. As a result, it is possible to effectively suppress the air resistance applied to the end faces of the package P, and further improve the effect of reducing power consumption.

[0164] In addition, according to the configuration of the first modification, the following effects can be obtained. Immediately after the start of winding of the thread Y, the diameter of the package P is very small, so the contact roller 25 and the bobbin B approach each other in the radial direction of the package P. Therefore, depending on the positional relationship between the between-end-face cover 40 and the contact roller 25, the between-end-face cover 40 may interfere with the bobbin B immediately after the start of winding of the thread Y. Regarding this point, according to the first modification, immediately after the start of winding of the thread Y, the between-end-face cover 40 is moved to the retracted position, thereby reliably avoiding interference of the between-end-face cover 40 with the bobbin B. Then, when the diameter of the package P increases due to the winding of the thread Y around each bobbin B and the distance between the contact roller 25 and the bobbin B becomes sufficiently large, the between-end-face cover 40 can be moved to the between-end-face position. Thereby, it is possible to suppress air from flowing into the between-package end faces while avoiding interference of the between-end-face cover 40 with the bobbin B.

[0165] In addition, in the first modification example, there may also be only one end face intermediate cover 40. That is, one end face intermediate cover 40 may be disposed only in any one of the plurality of spaces 70.

[0166] Here, in the configuration of the first modification example described above, preferably, for example, the end face intermediate position is a position on the contact point C side with respect to a straight line passing through the center Q of the package P and orthogonal to the virtual line segment V (not shown). In addition, in the configuration of the first modification example described above, preferably, when viewed from the axial direction, the end face intermediate position is a position closer to the contact point C than the center Q of the package P. Moreover, in the configuration of the first modification example described above, preferably, when viewed from the axial direction, a part of the end face intermediate cover 40 located at the end face intermediate position overlaps with the virtual line segment V connecting the contact point C and the center Q of the package.

[0167] In addition, in the first modification example described above, it is preferable to dispose a circumferential surface cover 50. The definition of the circumferential surface cover 50 is the same as that described in the above embodiment.

[0168] (Other modification examples)

[0169] In the above embodiment, a plurality of end face intermediate covers 40 are respectively disposed in a plurality of spaces 70 formed between the end faces of the packages P adjacent to each other in the front-rear direction. However, the end face intermediate cover 40 may also be disposed in at least one of the plurality of spaces 70 formed between the end faces of the packages P adjacent to each other in the front-rear direction. For example, the end face intermediate cover 40 may be disposed only in any one of the plurality of spaces 70 formed between the end faces of the packages P adjacent to each other in the front-rear direction. When the end face intermediate cover 40 is disposed only in one space 70, for example, the moving mechanism 60 moves one end face intermediate cover 40 between the end face intermediate position and the retracted position. In addition, when the end face intermediate cover 40 is disposed only in one space 70, the rod-shaped member 61 connected to the end face intermediate cover 40 is one.

[0170] In the above embodiment, one end face intermediate cover 40 is disposed for one space 70 formed between the package end faces. However, two or more end face intermediate covers 40 may also be disposed for one space 70. For example, when two end face intermediate covers 40 are disposed for one space 70, a total of 30 end face intermediate covers 40 are disposed in 15 spaces 70. In this case, when viewed from the front-rear direction, at least a part of each end face intermediate cover 40 is set to converge within an angular range of 30 degrees upstream to 30 degrees downstream in the rotation direction of the package P with respect to the virtual line segment V connecting the contact point C and the center Q of the package P. In addition, at least a part of the contact roller surface 41 of each end face intermediate cover 40 is disposed at a position closer to the center Q of the package P than the contact point C in the radial direction of the package P.

[0171] In the above-described embodiment, the entire contact roller surface 41 is disposed on the side of the center Q of the package P rather than the contact point C in the radial direction of the package P. However, a part of the contact roller surface 41 may be disposed on the side of the center Q of the package P rather than the contact point C in the radial direction of the package P.

[0172] In the above-described embodiment, no space is formed between the end faces of the adjacent bobbins B. However, a space may be formed between the end faces of the adjacent bobbins B.

[0173] In the above-described embodiment, it is set such that the entire end face cover 40 converges within an angular range of 30 degrees upstream to 30 degrees downstream in the rotation direction of the package P with respect to the virtual line segment V connecting the contact point C and the center Q of the package P. However, a part of the end face cover 40 may also be set to converge within an angular range of 30 degrees upstream to 30 degrees downstream in the rotation direction of the package P with respect to the virtual line segment V connecting the contact point C and the center Q of the package P. In this case, the remaining part of the end face cover 40 may be disposed outside the angular range of 30 degrees upstream to 30 degrees downstream in the rotation direction of the package P with respect to the virtual line segment V connecting the contact point C and the center Q of the package P.

[0174] In the above-described embodiment, when viewed from the front-rear direction, the bobbin surface 42 has a curved shape along the rotation direction of the package P. However, when viewed from the front-rear direction, the bobbin surface 42 may be, for example, a linear shape. Further, when viewed from the front-rear direction, the bobbin surface 42 may be, for example, a linear shape that is bent at least once.

[0175] In the above-described embodiment, when viewed from the front-rear direction, a part of the end face cover 40 is disposed at a position upstream of the virtual line segment V in the rotation direction of the package P. However, the entire end face cover 40 may be disposed at a position upstream of the virtual line segment V in the rotation direction of the package P. Further, in the above-described embodiment, when viewed from the front-rear direction, a part of the end face cover 40 is disposed at a position downstream of the virtual line segment V in the rotation direction of the package P. However, the entire end face cover 40 may be disposed at a position downstream of the virtual line segment V in the rotation direction of the package P.

[0176] In the above-described embodiment, when viewed from the front-rear direction, the end face cover 40 is continuously disposed over an angular range of 25 degrees or more in the rotation direction of the package P. However, when viewed from the front-rear direction, the end face cover 40 may also be continuously disposed over an angular range less than 25 degrees in the rotation direction of the package P.

[0177] In the above-described embodiment, the rod-shaped member 61 may also be configured to be able to expand and contract in the radial direction of the package P. Here, each end face-interposing cover 40 in the retracted position is disposed at a position radially inward of the circumferential cover 50 with respect to the package P (see Figure 6 ). Therefore, when the end face-interposing cover 40 is in the retracted position, by shortening the rod-shaped member 61 to bring the end face-interposing cover 40 closer to the circumferential cover 50, the end face-interposing cover 40 can be moved as far as possible from the bobbin B. Accordingly, the risk of interference between the end face-interposing cover 40 and the bobbin B can be reduced. Further, when the end face-interposing cover 40 is in the end face-interposing position, the end face-interposing cover 40 can be expanded and contracted in the radial direction of the package P. Thereby, the end face-interposing cover 40 can be disposed in the radial direction of the package P at a position where air inflow between the end faces of the package can be most effectively suppressed.

[0178] In the above-described embodiment, the control unit 26 calculates the diameters of the plurality of packages P based on the information related to the diameter size of the package P detected by the sensor 90. Then, when the diameters of the plurality of packages P reach a predetermined size, the control unit 26 controls the moving mechanism 60 to move each end face-interposing cover 40 from the retracted position to the end face-interposing position. However, the control unit 26 may also control the moving mechanism 60 to move each end face-interposing cover 40 from the retracted position to the end face-interposing position at a predetermined timing calculated based on the winding elapsed time since the start of winding of the thread Y around the bobbin B. Accordingly, at a predetermined timing when the diameter of the package P reaches a size that can sufficiently ensure the distance between the contact roller 25 and the bobbin B, the end face-interposing cover 40 can be moved to the end face-interposing position. Thereby, interference of the end face-interposing cover 40 with the bobbin B can be more reliably avoided.

[0179] In addition, in the above-described embodiment, the control unit 26 may also determine the timing for moving each end face-interposing cover 40 from the retracted position to the end face-interposing position based on a signal input by an operator. More specifically, for example, an operation unit (not shown) is provided in the thread winding machine 4. Then, at the timing of moving each end face-interposing cover 40 from the retracted position to the end face-interposing position, the operator operates the operation unit to send an operation signal to the control unit 26. The control unit 26 moves each end face-interposing cover 40 from the retracted position to the end face-interposing position based on the operation signal sent from the operation unit.

[0180] The thread winding machine 4 of the above-described embodiment has a moving mechanism 60 that moves a plurality of end face-interposing covers 40 between the end face-interposing position and the retracted position. However, the thread winding machine 4 may not have the moving mechanism 60. In this case, each end face-interposing cover 40 is fixedly disposed at the end face-interposing position. In this case, it is preferable that a space is formed between the end faces of adjacent bobbins B. Thereby, at least a part of the end face-interposing cover 40 can be disposed in the space formed between the end faces of adjacent bobbins B.

[0181] In the above-described embodiment, an end face shroud 40 and a circumferential shroud 50 are provided in the thread take-up machine 4. However, the thread take-up machine 4 according to the present invention may not be provided with the circumferential shroud 50.

[0182] In the above-described embodiment, the circumferential shroud 50 is provided at a position on the downstream side in the rotational direction of the package P with respect to the contact point C. However, the circumferential shroud 50 may also be provided at a position on the upstream side in the rotational direction of the package P with respect to the contact point C.

[0183] In the above-described embodiment, the circumferential shroud 50 is provided along the circumferential direction of the package P when the package diameter becomes the full-wound diameter. However, the circumferential shroud 50 only needs to be provided so as to locally surround the outer peripheral surfaces of a plurality of packages P in the circumferential direction of the package P, and is not limited to such a configuration. For example, when viewed from the front-rear direction, the circumferential shroud 50 may be, for example, in a shape along a straight line or a curve. In addition, when viewed from the front-rear direction, the circumferential shroud 50 may be, for example, in a shape along a straight line that is bent at least once. In addition, "the circumferential shroud 50 locally surrounds the outer peripheral surfaces of a plurality of packages P in the circumferential direction of the package P" means that, in the radial direction of the package P, the outer peripheral surfaces of a plurality of packages P are located on the inner side with respect to the inner surface of the circumferential shroud 50.

[0184] In the above-described embodiment, the circumferential shroud 50 is attached to the frame 28 via the connecting member 80. However, the circumferential shroud 50 may also be attached to the roller support member 30 via the connecting member 80. Specifically, for example, the circumferential shroud 50 may be attached to the arm portion 32 of the roller support member 30 via the connecting member 80. In this case, the roller support member 30 corresponds to the support member of the present invention. In addition, the circumferential shroud 50 may be directly attached to the frame 28 or the arm portion 32. Moreover, the circumferential shroud 50 may be attached to a member other than the frame 28 or the arm portion 32.

[0185] In the above-described embodiment, each end face shroud 40 is attached to the circumferential shroud 50 via the rod-shaped member 61. However, each end face shroud 40 may also be attached to the circumferential shroud 50 by a member different from the rod-shaped member 61.

[0186] In the above-described embodiment, each end face shroud 40 is indirectly attached to the circumferential shroud 50. However, each end face shroud 40 may also be directly attached to the circumferential shroud 50. In addition, each end face shroud 40 may be attached to a member other than the circumferential shroud 50. For example, as Figure 10 shown, each end face shroud 40 may be directly or indirectly attached to a wall member 92 that extends upward from the floor surface and extends in the front-rear direction. In Figure 10 it, each end face shroud 40 is attached to the upper end of the wall member 92 via the arm member 93. Moreover, each end face shroud 40 may be directly or indirectly attached to the frame 28 or the arm portion 32.

[0187] In the above-described embodiment, the sliding of the rod-shaped member 61 along the rail 62 is driven by the motor 63 of the moving mechanism. However, the sliding of the rod-shaped member 61 along the rail 62 can also be driven by a cylinder.

[0188] In the above-described embodiment, the moving mechanism 60 includes a plurality of rod-shaped members 61 and a rail 62. However, the moving mechanism 60 is not limited to such a configuration. For example, as Figure 10 shown, a moving mechanism 100 may be provided instead of the moving mechanism 60. The moving mechanism 100 includes a wall member 92 and a plurality of arm members 93 extending in a direction orthogonal to the front-rear direction from the upper end of the wall member 92. The base end portion of each arm member 93 is rotatably supported by the upper end of the wall member 92 via a swing shaft 94. The front end portion of each arm member 93 is connected to the inter-end face cover 40 via a rotating shaft 95. The moving mechanism 100 can move each inter-end face cover 40 between the inter-end face position and the retracted position (refer to Figure 10 the double-dot chain line) by swinging each arm member 93 about the swing shaft 94 and rotating the inter-end face cover 40 about the rotating shaft 95. Specifically, first, the moving mechanism 100 swings the arm member 93 counterclockwise about the swing shaft 94 (refer to Figure 10 the solid-line arrow). Next, the moving mechanism 100 rotates the inter-end face cover 40 counterclockwise about the rotating shaft 95 (refer to Figure 10 the solid-line arrow). Thereby, the inter-end face cover 40 can be moved from the inter-end face position to the retracted position. The swinging of the arm member 93 and the rotation of the inter-end face cover 40 are driven by a motor (not shown), for example.

[0189] In the above-described embodiment, the driving of the moving mechanism 60 is controlled by the control unit 26. That is, the moving mechanism 60 is automatically controlled. However, the moving mechanism 60 can also be operated manually by an operator.

[0190] In the above-described embodiment, the thread take-up machine 4 has two bobbin holders 24. However, the thread take-up machine 4 can also be configured to have one bobbin holder 24. In the case of the configuration of the thread take-up machine having one bobbin holder 24, it can also be configured that, when replacing the bobbin B with respect to the bobbin holder 24, for example, the contact roller 25 moves to a position separated from the package P. Alternatively, it can also be configured that one bobbin holder 24 moves to a position where the package P mounted on the bobbin holder 24 is separated from the contact roller 25.

Claims

1. A wire winding machine, characterized in that: have: A bobbin holder extends along a predetermined axial direction, and a plurality of bobbins respectively used for winding a plurality of silk threads are arranged and installed in the axial direction; a contact roller extending in the axial direction and contacting with outer peripheral surfaces of a plurality of packages formed by respectively winding the plurality of yarns around the plurality of bobbins; and an end surface cover arranged in at least one of a plurality of spaces formed between end surfaces of the package adjacent to each other in the axial direction, The end face cover has a contact roller surface facing the contact roller side when viewed from the axial direction, When viewed from the axial direction, at least a portion of the contact roller surface is arranged at a position closer to the center of the package than the outer peripheral surface of the package in the radial direction of the package. When viewed from the axial direction, at least a portion of the contact roller surface is configured to converge within the following range, which is an angular range from 30 degrees upstream to 30 degrees downstream in the rotation direction of the package, with the virtual line segment connecting the contact point between the package and the contact roller and the center of the package as the reference.

2. The wire winding machine according to claim 1, characterized in that: When viewed in the axial direction, at least a portion of the end surface cover is provided on the upstream side of the virtual line segment in the rotation direction of the package.

3. The wire winding machine according to claim 1 or 2, characterized in that: When viewed from the axial direction, at least a portion of the end surface cover is provided on a downstream side of the virtual line segment in the rotation direction of the package.

4. The wire winding machine according to any one of claims 1 to 3, characterized in that: The end face cover has a bobbin surface facing the center side of the package when viewed from the axial direction. When viewed from the axial direction, the bobbin surface has a curved shape along the rotational direction of the package.

5. The wire winding machine according to any one of claims 1 to 4, characterized in that: When observed from the axial direction, the end face cover is continuously arranged over an angular range of more than 25 degrees in the rotation direction of the package, and at least a portion of the end face cover is continuously arranged over an angular range from 20 degrees upstream to 5 degrees downstream in the rotation direction of the package based on the virtual line segment.

6. A wire winding machine, characterized in that: have: A bobbin holder extends along a predetermined axial direction, and a plurality of bobbins respectively used for winding a plurality of silk threads are arranged and installed in the axial direction; a contact roller extending in the axial direction and contacting with outer peripheral surfaces of a plurality of packages formed by respectively winding the plurality of yarns around the plurality of bobbins; and an end surface cover arranged in at least one of a plurality of spaces formed between end surfaces of the package adjacent to each other in the axial direction, The end face cover has a contact roller surface facing the contact roller side when viewed from the axial direction, When viewed from the axial direction, at least a portion of the contact roller surface is arranged at a position closer to the center of the package than the outer peripheral surface of the package in the radial direction of the package. The wire winding machine includes a moving mechanism that moves the end face cover between an end face position and a retracted position, wherein the end face position is a position where at least a portion of the end face cover is arranged in a space between end faces of adjacent packages, and the retracted position is a position radially outward of the package relative to the end face position. The end-surface inter-position is a position closer to a contact point between the package and the contact roller than the retracted position in the circumferential direction of the package.

7. The wire winding machine according to any one of claims 1 to 5, characterized in that: A moving mechanism is provided, which moves the end face cover between an end face position and a retracted position, wherein the end face position is a position where at least a portion of the end face cover is arranged in the space between the end faces of adjacent packages, and the retracted position is a position radially outside the package than the end face position.

8. The wire winding machine according to claim 6 or 7, characterized in that: have: a sensor for detecting information related to diameters of the plurality of packages; and a control unit for controlling the driving of the moving mechanism; The control unit is: calculating the diameter sizes of the plurality of packages based on information related to the diameter sizes of the plurality of packages, When the diameters of the plurality of packages reach a predetermined size, the moving mechanism is controlled so that the inter-end surface cover moves from the retracted position to the inter-end surface position.

9. The wire winding machine according to claim 6 or 7, characterized in that: A control unit is provided for controlling the driving of the moving mechanism. The control section controls the moving mechanism so that the end surface cover moves from the retracted position to the end surface position at a predetermined timing calculated based on a winding elapsed time from the start of winding the yarn onto the bobbin.

10. The wire winding machine according to any one of claims 1 to 9, characterized in that: The end surface covers are respectively arranged in the plurality of spaces.

11. The wire winding machine according to any one of claims 1 to 10, characterized in that: In the axial direction, a size of a gap between the end face cover and the package is 3 to 5 mm.

12. The wire winding machine according to any one of claims 1 to 11, characterized in that: When viewed from the axial direction, the distance between the contact roller surface and the contact point is 5 to 10 mm.

13. The wire winding machine according to any one of claims 1 to 12, characterized in that: The end face cover is continuously provided over an angular range of 25 degrees or more in the rotation direction of the package when viewed from the axial direction.

14. The wire winding machine according to any one of claims 1 to 13, characterized in that: A circumferential surface cover is provided, and the circumferential surface cover is provided so as to partially surround the outer circumferential surfaces of the plurality of packages in the circumferential direction of the package.

15. The wire winding machine according to claim 14, characterized in that: The peripheral surface cover is provided on the downstream side of the contact point in the rotation direction of the package.

16. The wire winding machine according to claim 14 or 15, characterized in that: A supporting member for supporting the contact roller is provided, The peripheral cover is directly or indirectly mounted on the supporting member.

17. The wire winding machine according to claim 16, characterized in that: The end surface cover is directly or indirectly mounted on the peripheral surface cover.

18. The wire winding machine according to claim 17, characterized in that: A moving mechanism is provided, the moving mechanism moves the end face cover between an end face position and a retracted position, the end face position being a position where at least a portion of the end face cover is arranged in a space between the end faces of the adjacent packages, and the retracted position being a position radially outward of the package relative to the end face position, The moving mechanism includes a connecting member that moves along the direction in which the peripheral cover extends when viewed from the axial direction. The connecting member is connected to the peripheral cover and the end face cover. The moving mechanism moves the connecting member along the direction in which the peripheral surface cover extends, thereby moving the inter-end surface cover between the inter-end surface position and the retracted position.

19. The wire winding machine according to claim 18, characterized in that: The connecting member is extendable and retractable in a radial direction of the package.

20. The wire winding machine according to any one of claims 14 to 19, characterized in that: have: two of said bobbin supports; and A rotatable turntable supports each of the bobbin holders. Each of the bobbin holders can be rotated and moved between a winding position for winding the thread onto the bobbin and a standby position different from the winding position by the rotation of the turntable. When viewed from the axial direction, the peripheral surface cover is arranged outside a rotation track of the plurality of packages that rotate together with the bobbin holder.

Images