JP2009012918A - Bobbin holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bobbin holder capable of eliminating rewinding work of a wire material from a thread winding bobbin to a dedicated bobbin of a braiding machine and attaching and fixing the thread winding bobbin to the braiding machine. <P>SOLUTION: A bobbin holder 1 for fixing a thread winding bobbin 2 wound with a wire material to a cylindrical winder shaft 4 formed with a center hole 5 except one end part and another end part of the winder shaft is constituted that a first rod part 11 and a second rod part 21 are fittingly inserted from one end side and another end side of the center hole of the winder shaft of the thread winding bobbin respectively, one end part and another end part of the wider shaft are made to enter into a first ring groove 15 and a second ring groove 25, the wire material wound to the winder shaft of the thread winding bobbin is sandwiched by a first flange part 12 and a second flange part 22, thereby the wider bobbin is fixed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a bobbin holder for holding a wound bobbin around which a predetermined amount of wire is wound.

As shown in FIG. 2, the bobbin 2 is formed by winding a predetermined amount of a wire 3 such as an insulating resin thread around a cylindrical winding shaft 4, and a core material such as an electric wire by a braiding machine. When braiding the wire 3 on the outer periphery, it is necessary to rewind the wire 3 from the bobbin 2 to a dedicated bobbin 90 (see FIG. 5) attached to the braiding machine. The dedicated bobbin 90 is rotatable to a braiding machine, a rod portion 91 around which the wire 3 is wound, an upper flange portion 92 and a lower flange portion 93 which are integrally connected to the rod portion 91 and formed in a disk shape. It is formed from a mounting portion 94 provided with driving teeth for being attached and driven, and the upper flange portion 92 and the lower flange portion 93 are connected to the rod by rewinding the wire rod 3 from the bobbin winding 2 to the dedicated bobbin 90. The wire 3 wound around the portion 91 is configured to be held from above and below. In such a case, a wire winding device is used to rewind the wire 3 from the bobbin 2 to the dedicated bobbin 90 (see, for example, Patent Document 1).
JP 2002-18517 A

  However, rewinding the wire rod 3 already wound around the bobbin 2 to the dedicated bobbin 90 mounted on the braiding machine is essentially a wasteful operation, reducing the work efficiency and reducing the wire 3 Since the braiding machine is stopped for the time required for rewinding, the operating rate of the braiding machine is lowered.

  Further, if the rewinding is performed from the bobbin 2 to the dedicated bobbin 90 having a different winding axis, the winding of the wire 3 may be disturbed, and a winding failure may occur in which the winding to the dedicated bobbin 90 becomes uneven. When this is used with a braiding machine, the uniform tension is not applied to the wire 3, which causes a braiding defect.

  In view of the problems as described above, an object of the present invention is to provide a bobbin holder that can eliminate the rewinding operation of the wire rod from the bobbin bobbin to the dedicated bobbin of the braiding machine and can mount and hold the bobbin bobbin on the braiding machine. To do.

In order to solve the above problems, a bobbin holder according to a first aspect of the present invention is formed by winding a wire around a cylindrical winding shaft having a central hole except for one end and the other end of the winding shaft. A bobbin holder for holding a bobbin bobbin, a first rod part that is detachably inserted into a central hole from one end side of the winding shaft, and winding of the bobbin bobbin that is integrally connected to the first rod part A first flange portion having a first ring groove for receiving one end portion of the shaft at a connecting portion with the first rod portion and formed in a disk shape substantially perpendicular to the peripheral surface of the first rod portion; A first holder comprising:
A second rod portion that is removably inserted into the center hole from the other end portion side of the winding shaft, and a second rod portion that is integrally connected to the second rod portion and receives the other end portion of the winding shaft of the thread winding bobbin. A second holder having a second flange portion formed in a disk shape having a two-ring groove at a connecting portion with the second rod portion and being substantially perpendicular to the peripheral surface of the second rod portion; The first rod portion and the second rod portion are respectively fitted and inserted from one end side and the other end side of the center hole of the winding shaft of the bobbin bobbin so that the one end portion and the other end portion of the winding shaft are A structure in which the bobbin is held by sandwiching the wire rod wound around the winding shaft of the bobbin winding by the first flange portion and the second flange portion from both sides by entering into the 1 ring groove and the second ring groove. Is done.

  The bobbin holder according to the second aspect of the present invention holds a bobbin bobbin in which a wire rod is wound around a cylindrical winding shaft formed with a center hole except for one end and the other end of the winding shaft. A bobbin holder for the first rod portion that is removably inserted into the center hole from one end portion side of the winding shaft, and is integrally connected to the first rod portion and substantially perpendicular to the peripheral surface of the first rod portion. A first holder formed of a first flange portion formed in a disk shape, a second rod portion removably inserted into the center hole from the other end portion side of the winding shaft, and the second rod A second holder comprising a second flange portion that is integrally connected to the portion and formed in a disk shape substantially perpendicular to the peripheral surface of the second rod portion, and an insertion hole through which the winding shaft of the bobbin bobbin can be loosely inserted The formed disc-shaped first holding plate and second holding plate, and a first biasing member (for example, first And a second urging member (for example, the second disc spring 170 in the second embodiment), and the first rod portion of the first holding plate. The first rod is loosely inserted into the insertion hole, and the first urging member is provided between the first flange portion and the first holding plate, and is fitted into the center hole from one end side of the bobbin bobbin. The first urging member is loosely inserted into the insertion hole of the holding plate and is provided between the second flange portion and the second holding plate, and is inserted into the center hole from the other end side of the bobbin bobbin. The urging member urges the first holding plate to contact the wire from one end side, and the second urging member urges the second holding plate to contact the wire from the other end side. Thus, the wire bobbin is held by sandwiching the wire from both sides.

  In the bobbin holder according to the first and second inventions, a male screw is formed on one of the shaft end of the first rod part or the shaft end of the second rod part, and a female screw is formed on the other. When the first rod portion and the second rod portion are fitted and inserted from the one end side and the other end side of the center hole, the male screw and the female screw are screwed together, and the first flange portion and the second It is preferable that the wire rod wound around the winding shaft by the flange portion is configured to hold the state of being sandwiched from both sides.

  Further, in the bobbin holder according to the first and second present inventions, a rotation preventing projection that protrudes outward is formed on one or both peripheral surfaces of the first rod portion and the second rod portion. It is preferable.

  Since the bobbin holder according to the first and second inventions is configured such that the first holder and the second holder sandwich the wire wound around the winding shaft of the bobbin bobbin from both sides to hold the bobbin bobbin. The bobbin holder can be attached to the braiding machine while the bobbin holder abuts and holds the bobbin bobbin from both sides without rewinding the bobbin with the dedicated bobbin of the braiding machine. Therefore, the rewinding work of the wire can be eliminated, the operating rate of the braiding machine is not lowered, and the occurrence of the braiding defect due to the winding disturbance of the wire can be eliminated.

  Further, the bobbin holder according to the second aspect of the present invention is urged so that the first holding plate and the second holding plate are brought into contact with the wire from both sides by the urging force of the first urging member and the second urging member. Since the configuration is adopted, the bobbin bobbin 2 can be held so that the wire wound around the winding shaft is not loosened and unwound.

  Furthermore, when a male screw is formed on one of the shaft end of the first rod part or the shaft end of the second rod part and a female screw is formed on the other, The strength of pinching the wire wound around the winding shaft of the bobbin bobbin by the first holder and the second holder is increased from both sides, the slack of the wire is eliminated, and the bobbin bobbin from the first holder and the second holder is prevented from coming off. can do.

  In addition, when it is configured such that a rotation-preventing protruding portion that protrudes outward is formed on one or both of the first rod portion and the second rod portion, the protruding portion is centered on the winding shaft. It is possible to prevent the bobbin bobbin from slipping with respect to the bobbin holder by the frictional force generated by the close contact and pressing outward.

  A first embodiment according to the present invention will be described below with reference to FIGS. The bobbin holder 1 as an example of the present invention includes a first bobbin holder 10 that holds the bobbin 2 from above and a second bobbin holder 20 that holds the bobbin 2 from below and is attached to the braiding machine.

  As shown in FIG. 2, the thread winding bobbin 2 includes a cylindrical winding shaft 4 formed with a center hole 5 in the axial direction, an insulating resin thread wound around the outer periphery of the winding shaft 4, and the like. The wire 3 is comprised. A predetermined amount of wire 3 is wound around the bobbin 2 in multiple layers over substantially the entire span of the outer periphery of the winding shaft 4 except for the one end 4a and the other end 4b of the winding shaft 4. Yes.

  As shown in FIG. 1, the first bobbin holder 10 includes a first rod part 11 formed in a cylindrical shape having an outer diameter that can be inserted into and removed from the center hole 5 of the bobbin bobbin 2, and the first rod part 11 The first flange portion 12 is formed in a disk shape so as to be integrally connected and substantially perpendicular to the peripheral surface of the first rod portion 11. For example, the first flange portion 12 is integrally molded with resin. The first flange portion 12 is formed by a ring-shaped recess surrounding the first rod portion 11 so that the one end portion 4a of the winding shaft 4 of the bobbin bobbin 2 can be received in the connecting portion with the first rod portion 11. A first ring groove 15 is formed. When the first rod portion 11 of the first bobbin holder 10 is fitted into the center hole 5 from the one end portion 4a side of the winding shaft 4 of the bobbin bobbin 2, one end portion of the winding shaft 4 of the bobbin bobbin 2 is inserted. 4 a is inserted into the first ring groove 15, and the first flange portion 12 is configured to abut against the wire 3 wound around the winding shaft 4.

  As shown in FIG. 1, the second bobbin holder 20 includes a second rod part 21 formed in a cylindrical shape having an outer diameter that can be inserted into and removed from the center hole 5 of the bobbin bobbin 2, and the second rod part 21 A second flange portion 22 that is integrally connected and formed in a disk shape substantially perpendicular to the peripheral surface of the second rod portion 21, is connected integrally to the second flange portion 22, and is rotatably attached to the braiding machine. It comprises a mounting portion 29 provided with driving teeth for driving, and is made, for example, by resin integral molding. Further, on the peripheral surface of the second rod portion 21, there are provided anti-rotation projections 23 that are formed in a wedge shape and project outwards at equal intervals in the circumferential direction. The second flange portion 22 is formed of a ring-shaped recess surrounding the second rod portion 21 so that the other end portion 4b of the winding shaft 4 of the bobbin bobbin 2 can be received in the connecting portion with the second rod portion 21. A second ring groove 25 is formed. When the second rod portion 21 of the second bobbin holder 20 is fitted into the center hole 5 from the other end portion 4b side of the winding shaft 4, the other end portion 4b of the winding shaft 4 of the bobbin bobbin 2 is The second flange portion 22 is configured to be in contact with and held by the wire rod 3 wound around the winding shaft 4 while entering the second ring groove 25.

  As shown in FIG. 3, the second bobbin holder 20 has a second rod part 21 when the second rod part 21 is inserted into the center hole 5 from the other end 4 b side of the winding shaft 4 of the bobbin bobbin 2. The protrusion 23 provided on the portion 21 presses the other end 4b of the winding shaft 4 outward from the center hole 5 so that the other end 4b that has entered the second ring groove 25 protrudes outward. Press to spread. Thereby, it is comprised so that the surrounding surface part (shaft protrusion part 4c) of the winding axis | shaft 4 spread outward may press the 2nd flange part 22, and may contact | adhere.

  In the bobbin holder 1 configured as described above, in order to mount and hold the bobbin bobbin 2 on the braiding machine, first, the first hole 10 of the first holder 10 is moved from the one end 4 a side of the winding shaft 4 of the bobbin bobbin 2 to the center hole 5. 1 rod portion 11 is inserted and inserted into first ring groove 15 so that one end portion 4a of winding shaft 4 enters, and first flange portion 12 comes into contact with wire rod 3 wound around winding shaft 4. To do.

  Similarly, the second rod portion 21 of the second holder 20 is fitted and inserted into the center hole 5 from the other end 4 b side of the winding shaft 4, and the other end 4 b of the winding shaft 4 is inserted into the second ring groove 25. And the second flange portion 22 is brought into contact with the wire 3 wound around the winding shaft 4. As a result, the first flange portion 12 is brought into contact with the wire 3 from above, and the second bobbin portion 22 is brought into contact with the wire 3 from below so as to hold the bobbin 2 from both sides. be able to.

  Therefore, the state in which the bobbin holder 1 holds the bobbin 2 is the same as when the dedicated bobbin 90 winds the wire 3 around the rod portion 91 as shown in FIG. The bobbin holder 1 can hold the bobbin 2 and can be mounted on the braiding machine by the mounting portion 29 of the second holder 20 without rewinding the dedicated bobbin 90.

  Further, when the braiding machine is driven so that the bobbin holder 1 is rotated so that the bobbin holder 1 holding the bobbin 2 is mounted on the braiding machine and the braiding is performed, the protrusion 23 projects outward. The bobbin 2 is prevented from slipping with respect to the second bobbin holder 20 due to the frictional force generated by the close contact between the shaft protrusion 4c of the wound winding shaft 4 and the second flange 22.

  Next, a second embodiment of the present invention will be described with reference to FIG. In addition, in this embodiment, about the structure of the bobbin bobbin which concerns on the above-mentioned 1st Embodiment, the same number is attached | subjected and the detailed description is abbreviate | omitted. The bobbin holder 101 according to the second embodiment includes a first bobbin holder 110 that holds the bobbin bobbin 2 from above, a second bobbin holder 120 that holds the bobbin bobbin 2 from below, and a wire 3 wound around the bobbin bobbin 2. The first holding plate 140 and the second holding plate 150 that are in contact with each other, and the first disc spring 160 (first attachment) that urges the first holding plate 140 and the second holding plate 150 to contact the wire 3. And a second disc spring 170 (second biasing member).

  The first holder 110 includes a first rod portion 111 formed in a cylindrical shape that can be inserted into and removed from the center hole 5 of the bobbin bobbin 2, and a peripheral surface of the first rod portion 111 that is integrally connected to the first rod portion 111. The first flange portion 112 is formed in a disk shape substantially perpendicularly. Further, a male screw portion 118 having a smaller diameter than the shaft diameter of the first rod portion 111 is formed at the shaft end portion of the first rod portion 111.

  The second holder 120 includes a second rod portion 121 formed in a cylindrical shape that can be inserted into and removed from the center hole 5 of the bobbin bobbin 2, and a peripheral surface of the second rod portion 121 that is integrally connected to the second rod portion 121. A second flange portion 122 formed in a disc shape with a substantially vertical shape, and a mounting portion 129 provided integrally with the second flange portion 122 and provided with drive teeth for being rotatably attached to the braiding machine. It consists of. A female screw portion 128 is formed at the shaft end portion of the second rod portion 121 so as to be screwable with the male screw portion 118 formed at the shaft end portion of the first rod portion 111 of the first holder 110 described above. ing.

  The first holding plate 140 is a disc-shaped plate body, and a first insertion hole 141 is formed at the center of the shaft so that the winding shaft 4 of the bobbin 2 can be inserted.

  Similarly, the second holding plate 150 is a disk-shaped plate body, and a second insertion hole 151 is formed at the center of the shaft so that the winding shaft 4 of the bobbin 2 can be inserted.

  The first disc spring 160 has an inner diameter through which the winding shaft 4 of the bobbin bobbin 2 can be inserted into the first disc spring 160.

  Similarly, the second disc spring 170 has an inner diameter through which the winding shaft 4 of the bobbin bobbin 2 can be inserted into the second disc spring 170.

  In the bobbin holder 101 configured as described above, in order to attach and hold the thread winding bobbin 2 to the braiding machine, first, the one end portion 4a of the winding shaft 4 of the thread winding bobbin 2 is inserted into the first insertion hole 141 of the first holding plate 140. The first holding plate 140 is positioned above the wire 3 of the bobbin bobbin 2 by being inserted. Similarly, the first disc spring 160 is also inserted into the one end portion 4a of the winding shaft 4 of the bobbin bobbin 2, and is positioned above the first holding plate 140 that has already been inserted into the one end portion 4a of the winding shaft 4. Then, the first holding plate 140 and the first disc spring 160 are inserted by inserting the first rod portion 111 of the first holder 110 into the center hole 5 from the one end 4a side of the winding shaft 4 of the bobbin winding 2 from above. Is sandwiched between the first flange portion 112 of the first holder 110 and the wire 3.

  Similarly, the other end portion 4b of the winding shaft 4 of the bobbin bobbin 2 is inserted into the second insertion hole 151 of the second holding plate 150, and the second holding plate 150 is positioned below the wire 3 of the bobbin bobbin 2. Let The second disc spring 170 is also inserted into the other end portion 4b of the winding shaft 4 of the bobbin bobbin 2 and is positioned below the second holding plate 150 that has already been inserted into the other end portion 4b of the winding shaft 4. Then, the second rod 121 of the second holder 120 is fitted into the center hole 5 from the other end 4b side of the winding shaft 4 of the bobbin winding 2 from below, and the second holding plate 150 and the second disc spring are inserted. 170 is sandwiched between the second flange portion 122 of the second holder 120 and the wire 3.

  Then, by screwing the male thread part 118 of the first rod part 111 of the first holder 110 and the female thread part 128 of the second rod part 121 of the second holder 120 in the center hole 5 of the bobbin bobbin 2, The first holder 110 and the second holder 120 are connected to each other so that the bobbin 2 can be sandwiched and held from both sides. And by this screwing, the distance between both flange parts of the 1st flange part 112 of the 1st holder 110 and the 2nd flange part 122 of the 2nd holder 120 is adjusted, and the 1st flange part 112 and the 1st holding The first disc spring 160 and the second flange portion 122 sandwiched between the plates 140 and the second disc spring 170 sandwiched between the second holding plates 150 serve as the wire 3 for the first holding plate 140 and the second holding plate 150. It will be energized so that it may contact. Therefore, the first holding plate 140 and the second holding plate 150 are brought into contact with each other by the urging force of the first disc spring 160 and the second disc spring 170 so as to urge the wire 3 from both sides. The bobbin 2 can be held so as not to break apart from the shaft 4.

  As described above, since the bobbin holder 101 holds the bobbin 2 as shown in FIG. 5, the dedicated bobbin 90 is in the same state as when the wire 3 is wound around the rod portion 91. The bobbin holder 101 can hold the bobbin 2 and can be mounted on the braiding machine by the mounting portion 129 of the second holder 120 without rewinding the bobbin 2 from the bobbin 2 to the dedicated bobbin 90.

  In the above-described embodiment, the flange surface of the first flange portion 12 of the first holder 10 and the flange surface of the second flange portion 22 of the second holder 20 are formed flat and flat. Instead, the flange surface may be knurled to form a mesh. According to this, generation | occurrence | production of the slack of the wire 3 which contact | abuts to the said knurled flange surface and a loosening | fluctuation are suppressed.

  In the above-described embodiment, the disc springs (the first disc spring 160 and the second disc spring 170) are used as the first biasing member and the second biasing member. However, the present invention is not limited to this. A coil spring or the like may be used.

  Further, the first flange portion 12 may have a notch groove. According to this, when the bobbin bobbin 2 is held from both sides by the upper bobbin 10 and the lower bobbin 20, the bobbin holder 1 holding the bobbin bobbin 2 is drawn by pulling the wire 3 and hooking it in the notch groove. There is no possibility that the wire 3 will be unwound when being carried for mounting on the braiding machine.

It is a perspective view which shows the bobbin holder as the 1st Embodiment of this invention. It is a perspective view which shows the bobbin bobbin which the bobbin holder which concerns on 1st Embodiment and 2nd Embodiment of this invention hold | maintains. It is sectional drawing of the principal part which shows a mode that the 2nd holder of the bobbin holder which concerns on the said 1st Embodiment exists in the state holding the bobbin bobbin. It is a perspective view which shows the bobbin holder as 2nd Embodiment of this invention. It is a perspective view of the conventional exclusive bobbin for rewinding a wire from a thread bobbin.

Explanation of symbols

1, 101 Bobbin holder 2 Thread bobbin 3 Wire rod 4 Winding shaft 4a One end 4b The other end 5 Center hole 10, 110 First holder 11, 111 First rod portion 12, 112 First flange portion 15 First ring groove 20, 120 Second holder 21, 121 Second rod part 22, 122 Second flange part 23 Projection part 25 Second ring groove 90 Dedicated bobbin 118 Male thread part 128 Female thread part 140 First holding plate 150 Second holding plate 160 First Belleville spring (first biasing member)
170 Second disc spring (second biasing member)

Claims (4)

A bobbin holder for holding a bobbin bobbin in which a wire rod is wound around a cylindrical winding shaft formed with a central hole except for one end and the other end of the winding shaft,
A first rod portion that is removably inserted into the center hole from the one end side of the winding shaft, and is integrally connected to the first rod portion, and the one end portion of the winding shaft of the bobbin bobbin is connected to the first rod portion. A first ring groove having a receiving first ring groove at a connecting portion with the first rod portion, and a first flange portion formed in a disk shape substantially perpendicular to the peripheral surface of the first rod portion. A first holder;
A second rod portion that is removably inserted into the center hole from the other end portion side of the winding shaft, and the other end of the winding shaft of the bobbin that is integrally connected to the second rod portion. A second flange groove formed in a disk shape having a second ring groove for receiving the portion in the connecting portion with the second rod portion, substantially perpendicular to the peripheral surface of the second rod portion; A second holder made of
The first rod portion and the second rod portion are respectively inserted from the one end side and the other end side of the center hole of the winding shaft of the bobbin bobbin, and the one end portion of the winding shaft is inserted. And the other end portion enters the first ring groove and the second ring groove, and the wire rod wound around the winding shaft of the bobbin bobbin by the first flange portion and the second flange portion. A bobbin holder configured to hold the bobbin bobbin by sandwiching it from both sides. A bobbin holder for holding a bobbin bobbin in which a wire rod is wound around a cylindrical winding shaft formed with a central hole except for one end and the other end of the winding shaft,
A first rod portion that is removably inserted into the center hole from the one end portion side of the winding shaft, and is integrally connected to the first rod portion, and is substantially perpendicular to a peripheral surface of the first rod portion. A first holder including a first flange portion formed in a disc shape,
A second rod portion that is removably inserted into the central hole from the other end portion side of the winding shaft, and is integrally connected to the second rod portion, and is substantially perpendicular to a peripheral surface of the second rod portion. A second holder composed of a second flange formed in a disc shape;
A disc-shaped first holding plate and a second holding plate in which insertion holes into which the winding shaft can be loosely inserted are formed;
A first urging member and a second urging member;
The first rod portion is loosely inserted into the insertion hole of the first holding plate, and the first urging member is provided between the first flange portion and the first holding plate, and the one end of the bobbin bobbin. Insert it into the center hole from the side,
The second rod portion is loosely inserted into the insertion hole of the second holding plate, and the second urging member is provided between the second flange portion and the second holding plate, and the other of the bobbin bobbin. Insert it into the center hole from the end side,
The first urging member urges the first holding plate so as to contact the wire from the one end side, and the second urging member causes the second holding plate to move from the other end side. A bobbin holder configured to hold the bobbin by sandwiching the wire from both sides by urging it so as to abut against the wire. A male screw is formed on one of the shaft end of the first rod part or the shaft end of the second rod part, and a female screw is formed on the other,
When the first rod part and the second rod part are fitted and inserted from the one end part side and the other end part side of the center hole, the male screw and the female screw are screwed together, The structure according to claim 1 or 2, wherein the wire rod wound around the winding shaft by the first flange portion and the second flange portion is held between both sides. Bobbin holder.   The rotation prevention protrusion part which protrudes outward is formed in the surrounding surface of one or both of the said 1st rod part and the said 2nd rod part, The any one of Claims 1-3 characterized by the above-mentioned. The bobbin holder according to item.

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