CN110023221B - Shape-keeping device for welding wire coil - Google Patents
Shape-keeping device for welding wire coil Download PDFInfo
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- CN110023221B CN110023221B CN201780073102.8A CN201780073102A CN110023221B CN 110023221 B CN110023221 B CN 110023221B CN 201780073102 A CN201780073102 A CN 201780073102A CN 110023221 B CN110023221 B CN 110023221B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/04—Kinds or types
- B65H75/08—Kinds or types of circular or polygonal cross-section
- B65H75/14—Kinds or types of circular or polygonal cross-section with two end flanges
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Abstract
A shape-retaining device (10) for winding a welding wire into a cylindrical wire coil (H), comprising: a first holding member (1) having a cylindrical outer core (11) inserted into a center hole (H11) of the wire coil (H) and a first flange (12) covering one end surface of the wire coil (H); and a second shape retaining member (2) having an inner core (21) inserted into the outer core (11) and a second flange (22) covering the other end face of the wire coil (H), wherein a slit extending in the axial direction of the outer core (11) of the first shape retaining member (1) is formed, and at least a part of the outer core (11) is separated into a plurality of divided pieces (15) by the slit.
Description
Technical Field
The present invention relates to a shape retaining device for a wire coil for retaining the shape of a wire coil formed by winding a wire in a cylindrical shape.
Background
Conventionally, a cylindrical coil formed of a wound body of a welding wire is sold and used in a state of being wound around a resin-made shape retaining device called a bobbin so as to be easily taken out and held in its shape (for example, see patent document 1).
Further, there is known a mounting tool for a wire coil, which includes a cylindrical core body to which a cylindrical wire coil is mounted, and a pair of flange portions between which the core body is interposed, wherein at least one of the flange portions is detachably configured, and the core body is inserted into a center hole of the wire coil in a state where the flange portion is removed, whereby the mounting tool can be mounted on the wire coil (for example, refer to patent document 2).
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 10-113767
Patent document 2: japanese registered Utility model No. 3199234
Disclosure of Invention
However, as described in patent document 1, since the wire coil is held by the bobbin and the unnecessary resin bobbin needs to be disposed of as waste after the wire coil is used, there is a problem in utilization and reprocessing of resources.
In the wire coil mounting fixture described in patent document 2, after the wire coil is used, a new wire coil can be mounted in a state in which one flange portion is removed from the cylindrical core body, and therefore, the mounting fixture can be reused. On the other hand, when a new wire coil is attached to the attachment, the core of the attachment needs to be inserted into the center hole of the wire coil, which causes a problem of complicated work.
That is, in order to hold the wire coil in an appropriate state by the fixture, it is necessary to accurately match the inner diameter of the wire coil wound in a cylindrical shape with the outer diameter of the core, but when the inner diameter of the wire coil is smaller than the outer diameter of the core due to manufacturing errors, a large force is required to insert the core of the fixture into the center hole of the wire coil. Further, the inner diameter of the wire coil is increased by the core of the fixture, and the winding state of the wire is easily disturbed, which causes a problem in versatility. When the core of the fixture is inserted into the center hole of the wire coil, the inner surface of the center hole rubs against the fixture to scratch the wire inside the center hole, which may deteriorate the commercial value of the wire coil and deteriorate the wire.
In order to facilitate the work of inserting the core of the attachment into the center hole of the wire coil, it is also conceivable to set the outer diameter of the core to be smaller than the inner diameter of the wire coil in advance, but in this case, there is a problem in that: when the core of the mounting tool is inserted into the center hole of the wire coil and the mounting tool is mounted on the wire coil, rattling is likely to occur, and a stable holding state of the wire coil cannot be obtained. In particular, when the inner diameter of the wire coil becomes larger than the outer diameter of the core due to manufacturing errors, a large gap is formed between the center hole of the wire coil and the core of the mounting tool, and significant occurrence of rattling cannot be avoided.
The invention aims to provide a shape keeper of a welding wire coil, which can easily install the welding wire coil and reduce the possibility of poor welding wire when the welding wire is wound into a cylindrical shape or a manufacturing error occurs in the shape keeper.
A shape keeper of a wire coil according to an aspect of the present invention is a shape keeper of a wire coil in which a welding wire is wound in a cylindrical shape, comprising: a first retaining member having a cylindrical outer core inserted into a center hole of the wire coil and a first flange covering one end surface of the wire coil; and a second shape retaining member having an inner core inserted into the outer core and a second flange portion covering the other end surface of the wire coil, wherein the outer core of the first shape retaining member is formed with a slit extending in an axial direction thereof, and at least a part of the outer core is separated into a plurality of divided pieces by the slit.
Drawings
Fig. 1 is a perspective view showing a state in which a shape retainer of a wire coil according to a first embodiment of the present invention is viewed obliquely from below.
Figure 2 is a cross-sectional view of the shape holder shown in figure 1.
Fig. 3 is a perspective view of a first shape retaining member constituting the shape retainer shown in fig. 1.
Fig. 4 is a bottom view of the first form retaining member shown in fig. 3.
Figure 5A is a perspective view of a second shape-retaining member that forms the shape-retainer shown in figure 1.
Fig. 5B is an enlarged view of the locking portion shown in fig. 5A.
Fig. 6A is a perspective view showing a state in which the shape retainer shown in fig. 1 is temporarily assembled.
Fig. 6B is an enlarged view showing the locking portion and the engaged portion shown in fig. 6A.
Fig. 7 is a perspective view showing a specific structure of the wire coil held by the shape retainer shown in fig. 1.
Fig. 8 is a sectional view showing a specific structure of the wire coil shown in fig. 7.
Fig. 9 is a sectional view showing a state where the outer core of the first keep member is inserted into the center hole of the wire coil.
Fig. 10 is a sectional view showing a state where the wire coil is held by the shape retainer shown in fig. 1.
Fig. 11 is a perspective view showing a specific configuration of a first shape retaining member constituting a shape retainer showing a second embodiment of the present invention.
Fig. 12 is a perspective view showing a specific configuration of a second shape retaining member constituting a shape retaining device according to a second embodiment of the present invention.
Fig. 13 is a perspective view showing a state in which the first shape retaining member shown in fig. 11 and the second shape retaining member shown in fig. 12 are coupled to each other.
Fig. 14 is a front view showing a state in which a shape retainer of a wire coil according to a third embodiment of the present invention is disassembled into a first shape retaining member and a second shape retaining member.
Fig. 15 is a front view and a side view showing a specific configuration of a locking portion provided in the second shape retaining member shown in fig. 14.
Fig. 16 is a front view showing an assembled state of the shape retainer shown in fig. 14.
Fig. 17 is a perspective view showing a specific configuration of a first form-retaining member of a form-retainer constituting a wire coil according to a fourth embodiment of the present invention.
FIG. 18 is a perspective view of the wire coil retainer of FIG. 1.
Fig. 19 is a perspective view of the wire coil shown in fig. 18 with the shape retainer attached thereto.
FIG. 20 is a front view of the shape retainer of the wire coil shown in FIG. 18.
FIG. 21 is a rear view of the wire coil retainer of FIG. 18.
FIG. 22 is a right side view of the wire coil retainer of FIG. 18.
FIG. 23 is a left side view of the wire coil retainer of FIG. 18.
FIG. 24 is a top view of the wire coil retainer of FIG. 18.
FIG. 25 is a bottom view of the wire coil retainer of FIG. 18.
FIG. 26 is a cross-sectional view taken along line A-A of the wire coil retainer of FIG. 20.
FIG. 27 is a cross-sectional view taken along line B-B of the wire coil retainer of FIG. 24.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same reference numerals are assigned to the same components, and the description thereof will be omitted.
Fig. 1 is a perspective view showing a shape retainer 10 of a wire coil according to a first embodiment of the present invention, as viewed obliquely from below, and fig. 2 is a cross-sectional view of the shape retainer 10. Fig. 3 is a perspective view of the first retaining member 1 of the wire coil retainer 10 according to the first embodiment when viewed from obliquely above, and fig. 4 is a bottom view showing the first retaining member 1 when viewed from below. Fig. 5A is a perspective view of second shape retaining member 2 of shape retainer 10 constituting the wire coil of the first embodiment. Fig. 5B is an enlarged view of the locking portion shown in fig. 5A. Fig. 6A is a perspective view showing a state in which the shape retainer 10 for a wire coil according to the first embodiment of the present invention is temporarily assembled. Fig. 6B is an enlarged view showing the locking portion and the engaged portion shown in fig. 6A.
As shown in fig. 3 and 4, the first conformal member 1 includes: a cylindrical outer core 11 having a substantially circular cross-sectional shape; and a first flange portion 12 provided at the base end portion of the outer core 11. The first form-retaining member 1 may be made of a material having a predetermined rigidity and appropriate elasticity, such as nylon, polyurethane, fluororesin, vinyl, PTFT, or the like. The first form-retaining member 1 is appropriately formed by techniques such as injection molding using an injection molding machine, cutting using a cutting machine, or shaping using a 3D printer. Further, the first conformal member 1 may be formed of a metal material or the like.
As described later, the outer core 11 of the first conformal member 1 is configured to: the wire coil is formed into a cylindrical shape having a total length L1 slightly longer than the axial dimension of the wire coil in which a wire-like brazing material is wound into a cylindrical shape, and having an outer diameter D substantially equal to the diameter of the center hole of the wire coil, and the wire coil can be inserted into the center hole. Further, a tapered surface 13 with a tapered front portion is formed on the outer periphery of the front end portion of the outer core 11.
In the outer core 11 of the first holding member 1, 3 slits 14 having a predetermined width W1 are formed over the entire axial length of the outer core 11. The outer core 11 is separated into 3 divided pieces 15 having an arc-shaped cross-sectional shape by the slits 14.
The first flange 12 of the first form-retaining member 1 is formed in a disc shape having an outer diameter substantially equal to the outer diameter of the wire coil, and thereby covers one end surface of the wire coil when the wire coil is retained, which will be described later. A circular through hole 16 having a diameter slightly larger than the outer diameter of the core body 21 provided in the second shape retaining member 2 is formed in the center portion of the first flange portion 12.
As shown in fig. 4, the first flange 12 is provided at three locations with コ -shaped openings 17 that communicate the outer periphery of the through hole 16 with the slits 14 of the outer core 11. Engaged portions 18 (see fig. 6A and 6B) each including a groove that is engageable with and disengageable from an engaging portion 26 provided in the second shape retaining member 2 are formed in a portion on one side of the opening 17, that is, on the counterclockwise side in fig. 4.
As shown in fig. 5A, the second conformal member 2 includes: a cylindrical inner core body 21 insertable into the outer core body 11 of the first holding member 1; and a second flange portion 22 provided at a root end portion thereof. The second conformal member 2 is suitably formed by the same materials and processing methods as the first conformal member 1.
The inner core 21 of the second conformal member 2 is configured to have a predetermined inner diameter, and thus can be fitted to a solder support shaft of a solder (は/(だ)) supply device provided outside the drawing. The total length L2 of the inner core 21 is set to a value (L + T) obtained by adding the total length L1 of the outer core 11 and the plate thickness T of the first flange portion 12 (see fig. 2).
3 projections 23 corresponding to the slits 14 formed in the outer core 11 of the first holding member 1 are formed radially protruding from the outer peripheral surface of the inner core 21. The entire length of the bead 23 is set to be substantially equal to the entire length L2 of the core body 21, and thus, it is formed over substantially the entire region in the longitudinal direction of the core body 21. Further, the position and the dimension of the ridge 23 are set so that the outer peripheral portion of the ridge 23 can be inserted into the slit 14 of the outer core 11 when the inner core 21 of the second shape retaining member 2 is inserted and assembled into the outer core 11 of the first shape retaining member 1.
Further, the core body 21 is provided with 3 reinforcing pieces 24, and the reinforcing pieces 24 are arranged between the adjacent beads 23, 23 and radially formed so as to protrude from the outer peripheral surface of the core body 21. The reinforcing pieces 24 are configured such that the outer diameter thereof is set to a value slightly smaller than the inner diameter of the outer core 11 of the first holding member 1, thereby being insertable into the outer core 11 of the first holding member 1, and tapered surfaces 25 each having a tapered front portion are formed at the tip end portions of the reinforcing pieces 24. A slightly smaller value means a smaller value of, for example, about 0.1mm to 5mm, and more preferably about 0.1mm to 2.5 mm.
The reinforcing sheet 24 has an overall length set to be shorter than the overall length L2 of the core body 21 by a predetermined length, and is formed in a region other than the distal end side portion of the core body 21. Thus, when the inner core 21 of the second shape retaining member 2 is inserted into and assembled to the outer core 11 of the first shape retaining member 1, the tip of the reinforcing piece 24 is configured not to abut against the inner wall surface of the first flange portion 12.
A locking portion 26 is formed at the tip end portion of the ridge 23 so as to protrude from the outer side portion thereof in one side direction, i.e., in the counterclockwise direction in fig. 6A, and a bulging portion 27 having a semicircular cross-sectional shape is provided on the back surface thereof. The bulging portion 27 is press-fitted into and engaged with the engaged portion 18 of the first shape retaining member 1 as described later, and can maintain the assembled state of the shape retainer 10 in which the inner core 21 of the second shape retaining member 2 is inserted into the outer core 11 of the first shape retaining member 1.
The width W2 of the tip of the protrusion 23, i.e., the sum of the amount of protrusion of the locking portion 26 and the plate thickness of the protrusion 23, is set to be slightly smaller than the width W1 of the slit 14 (see fig. 3) formed in the outer core 11 of the first holding member 1.
Thus, the tip end portion of the protrusion 23 including the locking portion 26 can be inserted into the slit 14 and the opening 17 of the first holding member 1, and the temporarily assembled state shown in fig. 6A can be achieved. In this temporarily assembled state, the distal end surface of the ridge 23 is flush with the outer wall surface of the first flange portion 12 of the first retainer 1 (see fig. 2).
Then, when the second shape retaining member 2 is rotated counterclockwise in fig. 6A from the temporarily assembled state, the bulging portion 27 of the engaging portion 26 is pressed into the groove of the engaged portion 18 constituting the first shape retaining member 1 to be engaged. This allows the two members 1 and 2 to be maintained in an assembled state (see fig. 1) in which the inner core 21 of the second conformal member 2 is inserted into the outer core 11 of the first conformal member 1.
Further, when the second shape retaining member 2 is rotated clockwise in fig. 1 from the assembled state and the bulging portion 27 of the engaging portion 26 is moved out of the engaged portion 18 of the first shape retaining member 1, the engaged state of the engaging portion 26 is released (see fig. 6A). In this state, the inner core body 21 of the second shape retaining member 2 is pulled so as to be drawn out of the outer core body 11 of the first shape retaining member 1, so that the first shape retaining member 1 can be separated from the second shape retaining member 2.
The second flange portion 22 of the second shape retaining member 2 is formed in a disc shape having an outer diameter substantially equal to the outer diameter of the wire coil, similarly to the first flange portion 12 of the first shape retaining member 1, so that the other end surface thereof can be covered when the wire coil described later is held.
A through hole 28 (see fig. 2) communicating with the center hole of the core body 21 is formed in the center portion of the second flange portion 22. Further, an arc-shaped groove 29 (see fig. 2 and 5A) is formed on the inner wall surface of the second flange portion 22 so as to be capable of fitting into the distal end portion of the outer core 11 in the assembled state in which the inner core 21 of the second conformal member 2 is inserted into the outer core 11 of the first conformal member 1.
Fig. 7 and 8 are a perspective view and a sectional view showing a specific structure of the wire coil H held by the shape retainer 10. Fig. 9 is a sectional view showing a state where the outer core 11 of the first holding member 1 is inserted into the center hole H11 of the wire coil H, and fig. 10 is a sectional view showing a state where the wire coil H is held by the retainer 10.
The wire coil H includes: a coil body H1 formed in a cylindrical shape by winding a wire; a coating film H2 covering the outer surface thereof; and a substantially circular label H3 attached to the upper surface of coating H2 covering one end surface side of wire coil H (the upper surface side of wire coil H in the example shown in fig. 7 and 8).
The cover film H2 and the label H3 have openings H21 and H31, respectively, which correspond to openings above the center hole H11 formed in the coil main body portion H1. Further, an opening H32 corresponding to a lower opening of the center hole H11 is formed in the coating H2. In order to provide a slip-proof function when a finger is inserted into the center hole H11 of the coil body H1 to grasp and move the wire coil H, the diameters of the openings H21 and H32 of the coating H2 are preferably smaller than the diameter of the center hole H11 of the coil body H1.
The cover film H2 can be formed using, for example, a heat-shrinkable film. Specifically, for example, a coating film H2 covering the outer surface of the coil main body portion H1 can be formed by heat-shrinking a heat-shrinkable film formed in a cylindrical shape by heating the heat-shrinkable film in a state of being externally fitted to the coil main body portion H1.
As the heat-shrinkable film material for the coating H2, various heat-shrinkable materials such as polyvinyl chloride (PVC), polypropylene (PP), Polyethylene (PE), Polystyrene (PS), Polyolefin (PO), polyethylene terephthalate (PET), Polycarbonate (PC), ethylene-vinyl acetate copolymer (EVA), etc., or two or more layers of PET/PET, PP/PE, etc., or a combination of these materials, may be used.
As the label H3 of the wire coil H, various materials formed of a sheet-like body such as paper or a resin sheet can be used. On the surface of the label H3, various information including a record indicating a manufacturer name, a type of the wire, a material, and the like, a thickness of the wire, a weight of the wire coil H, a lot number, and the like are described.
In order to hold the wire coil H having the outer surface covered with the coating film H2 and the label H3 attached to the upper surface thereof in the retainer 10, first, the outer core 11 of the first holding member 1 is inserted into the center hole H11 from below the coil body H1, and the wire coil H is held in the outer core 11 of the first holding member 1 as shown in fig. 9.
In the wire coil H formed so that the diameters of the openings H21, H32 of the coating H2 are smaller than the diameter of the center hole H11 of the coil body H1, when the outer core 11 of the first form-retaining member 1 is inserted into the center hole H11 from below the coil body H1, the coating H2 located around the openings H21, H32 is pushed into the center hole H11 of the coil body H1 by the outer core 11.
Next, as shown in fig. 10, the inner core 21 of the second conformal member 2 can be pushed into the outer core 11 of the first conformal member 1 by inserting the inner core 21 of the second conformal member 2 into the center hole H11 from above the wire coil H and inserting the outer peripheral portion of the ridge 23 into the slit 14 of the first conformal member 1.
Then, after the inner core 21 of the second shape retaining member 2 is pushed into the outer core 11 of the first shape retaining member 1 so as to reach a temporarily assembled state in which the distal end surface of the engaging portion 26 and the outer side surface of the first flange portion 12 of the first shape retaining member 1 are flush with each other, the engaging portion 26 of the second shape retaining member 2 is engaged with the engaged portion 18 of the first shape retaining member 1 (see fig. 1), for example, by rotating the second shape retaining member 2 in the counterclockwise direction in fig. 6A.
In this way, the retainer 10 and the wire coil H are supported by, for example, a solder support shaft or the like provided in a solder supplying device outside the drawing, in a state where the wire coil H is retained by the outer core 11 of the first retainer 1, and both end surfaces of the wire coil H are covered and protected by the first and second flanges 12 and 22 of the retainer 10. Then, the wire coil is paid out from the outer core 11 as necessary, and the brazing operation can be performed.
A shape retainer 10 according to the above, comprising: a first holding member 1 having a cylindrical outer core 11 into which a center hole H11 of a wire coil H formed by winding a wire into a cylindrical shape is inserted, and a first flange 12 covering one end surface of the wire coil H; and a second shape retaining member 2 having an inner core 21 insertable into the outer core 11 and a second flange 22 covering the other end surface of the wire coil H, and capable of easily and stably retaining the wire coil H even when a manufacturing error occurs in the wire coil H or the shape retainer 10.
Therefore, in a state where the wire coil H protected by the shape retainer 10 is supported by the solder feeding device outside the drawing, the wire can be drawn from the wire coil H and the brazing work can be performed appropriately. In addition, the wire coil H can be effectively prevented from being tangled when the wire coil H is used.
Further, when the wire coil H is used up or replaced with another wire coil H, a new wire coil H can be easily attached to the shape retainer 10 in a state where the first shape retainer member 1 and the second shape retainer member 2 are separated from each other, and therefore the shape retainer 10 of the wire coil H can be reused numerous times.
That is, since the slit 14 extending in the axial direction of the outer core 11 of the first holding member 1 is formed and the outer core 11 is divided into the plurality of divided pieces 15 by the slit 14, even when the outer core 11 of the first holding member 1 is formed of a material having a predetermined rigidity, when the outer core 11 is inserted into the center hole H11 of the wire coil H, the divided pieces 15 are easily displaced by rocking about the root end portions of the divided pieces 15 as fulcrums, the diameter of the outer core 11 can be reduced, and the insertion operation of the outer core 11 can be smoothly performed. This facilitates the wire coil H to be attached to the shape retainer 10.
Therefore, even when the inner diameter of the wire coil H, that is, the diameter of the center hole H11 is smaller than the outer diameter D of the outer core 11 due to manufacturing errors, the inner diameter of the wire coil H is not forcibly widened by the outer core 11 and the wire is not tangled, and the outer core 11 of the first holding member 1 can be easily and appropriately inserted into the center hole H11 of the wire coil H. Further, when the outer core 11 is inserted into the center hole H11, the possibility of damaging the welding wire on the inner surface of the center hole H11 is reduced, and therefore, the possibility of occurrence of welding wire defects can be reduced.
In particular, when the tapered surface 13 with a tapered front portion is formed on the outer periphery of the distal end portion of the outer core 11, the work of inserting the outer core 11 into the center hole H11 of the wire coil H can be performed more smoothly.
In consideration of the manufacturing error, the outer diameter of the outer core 11 may be set to be larger than the diameter of the center hole H11 of the wire coil H in advance, instead of setting the outer diameter of the outer core 11 to be smaller than the diameter of the center hole H11 of the wire coil H in advance. Therefore, even when the inner diameter of the wire coil is larger than the outer diameter of the core due to a manufacturing error, there are the following advantages: when the center hole H11 of the wire coil H is inserted into the outer core 11 of the first shaping member 1 and the shaper 10 holds the wire coil H, significant sloshing can be effectively suppressed without generating a large gap between the center hole H11 of the wire coil H and the outer core 11 of the first shaping member 1.
Since the projection 23 is provided on the outer peripheral surface of the inner core 21 so that the outer peripheral portion thereof can be inserted into the slit 14 formed in the outer core 11 as described above, the inner core 21 of the second shape retaining member 2 can be smoothly inserted into the outer core 11 of the first shape retaining member 1 by using the slit 14 and the projection 23 as the guide portions.
Moreover, there are also advantages in that: in the assembled state in which the inner core 21 of the second shape retaining member 2 is inserted into the outer core 11 of the first shape retaining member 1, the slits 14 and the protrusions 23 can suppress relative rotation between the first shape retaining member 1 and the second shape retaining member 2, thereby preventing occurrence of rattling.
In the first embodiment described above, the reinforcing piece 24 having an outer diameter slightly smaller than the inner diameter of the outer core 11 is formed so as to protrude from the outer peripheral surface of the inner core 21, and the reinforcing piece 24 can be inserted into the outer core 11 of the first shape retaining member 1 together with the inner core 21 of the second shape retaining member 2, but the reinforcing piece 24 may be omitted.
However, in the case of the structure in which the reinforcing sheet 24 insertable into the outer core 11 is provided on the outer peripheral surface of the inner core 21, when the inner core 21 of the second shape retaining member 2 is inserted into the outer core 11 of the first shape retaining member 1 and the two members are assembled, the outer peripheral surface of the reinforcing sheet 24 is slid along the outer core 11, whereby the assembling work can be smoothly performed. In particular, when the tapered surface 25 with a tapered front portion is formed at the distal end portion of the reinforcing piece 24, the work of inserting the inner core 21 of the second conformal member 2 into the outer core 11 of the first conformal member 1 can be performed more smoothly.
In the assembled state in which the outer core 11 of the first conformal member 1 holds the wire coil H and the inner core 21 of the second conformal member 2 is inserted into the outer core 11, the divided pieces 15 constituting the outer core 11 can be restricted from the inside by the reinforcing pieces 24. Therefore, although the slits 14 are formed in the outer core 11 of the first holding member 1 as described above to allow the individual divided pieces 15 to be displaced by rocking, the outer core 11 of the first holding member 1 can be effectively prevented from being deformed when the wire coil H is used. As a result, the wire coil H can be stably held by the shape keeper 10.
Further, as in the first embodiment described above, when the arc-shaped concave groove 29 into which the distal end portion of the outer core 11 can be fitted is formed in the inner wall surface of the second flange portion 22, the distal end portion of the outer core 11 is fitted into the concave groove 29 (see fig. 2) in the assembled state in which the inner core 21 of the second shape retaining member 2 is inserted into the outer core 11 of the first shape retaining member 1, whereby the divided pieces 15 constituting the outer core 11 of the first shape retaining member 1 can be prevented from wobbling. Therefore, the state in which the wire coil H is held by the shape keeper 10 can be further stabilized.
In the assembled state, the front end portion of the outer core 11 is fitted into the concave groove 29 of the second flange portion 22, so that a gap can be prevented from being formed between the front end portion of the outer core 11 and the inner wall surface of the second flange portion 22. Therefore, it is possible to reliably prevent the wire forming the wire coil H from being caught in the gap, which may hinder the operation of removing the core wire, or the operation of removing the wire coil H which is unnecessary from the shape retainer 10.
In the first embodiment described above, the example of the wire coil H configured to be able to hold the shape retainer 10 in a state in which the outer peripheral surface is covered with the coating H2 and the label H3 is attached to the upper surface has been described, but instead of this configuration, only the shape retainer 10 may be configured to hold the coil main body portion H1 in a state in which the coating H2 and the label H3 are peeled off.
In this case, it is preferable that the label H3 be peeled off from the coating film H2 and be attached to the outer wall surface of the first flange portion 12 or the second flange portion 22. In this way, the type, material, and the like of the wire constituting the wire coil H held by the shape retainer 10 can be easily confirmed from the description of the label H3.
On the other hand, as in the first embodiment described above, when the shape retainer 10 is configured to hold the wire coil H having its outer peripheral surface covered with the coating H2 and having the label H3 affixed to its upper surface, at least one of the first flange portion 12 and the second flange portion 22 is preferably formed of a transparent or translucent material.
For example, in the shape retaining device 10 (see fig. 10) of the wire coil configured such that the end face on the upper surface side of the wire coil H provided with the label H3 is covered with the second flange portion 22 of the second shape retaining member 2 as shown in fig. 7, at least the second flange portion 22 is preferably formed of a transparent or translucent material. With this configuration, since the label H3 provided on the upper surface of the holder 10 can be recognized by the second flange 22 while the holder holds the wire coil H whose outer peripheral surface is covered with the coating H2, the type, material, and the like of the wire constituting the wire coil H can be confirmed based on the description of the label H3.
On the other hand, when the end face of the coil H on the upper surface side is covered with the first flange portion 12 of the first retainer 1, the first flange portion 12 is formed of a transparent or translucent material, and thus the label H3 provided on the upper surface can be recognized while the retainer 10 holds the wire coil H whose outer peripheral surface is covered with the coating film H2.
Further, both the first flange portion 12 and the second flange portion 22 may be formed of a transparent or translucent material such as a transparent acrylic material, or the entire first shape retaining member 1 and the second shape retaining member 2 may be formed of a transparent or translucent material such as a transparent acrylic material.
As described above, in the case where the locking portion 26 for maintaining the coupled state of the inner core 21 of the second shape retaining member 2 inserted into the outer core 11 of the first shape retaining member 1 is formed in the ridge 23 of the second shape retaining member 2, and the engaged portion 18 for engaging with and disengaging from the locking portion 26 is formed in the first flange portion 12 of the first shape retaining member 1, the engaging portion 26 is engaged with the engaged portion 18, whereby the assembled state of the shape retaining device 10 for coupling the first shape retaining member 1 and the second shape retaining member 2 together can be stably maintained when the wire coil H is used.
After the wire coil H is used or when another type of wire coil H is exchanged, the engagement between the engaging portion 26 and the engaged portion 18 is released, so that the first shape retaining member 1 and the second shape retaining member 2 are separated from each other, and a new wire coil H can be easily attached to the shape retainer 10.
In the first embodiment described above, the engaging portion 26 is formed so as to protrude in one direction from the distal end portion of the protrusion 23 provided on the inner core 21 of the second shape retaining member 2, the opening 17 through which the distal end portion of the protrusion 23 and the engaging portion 26 can be inserted is formed in the first flange portion 12 of the first shape retaining member 1, and the engaged portion 18 that can engage with and disengage from the engaging portion 26 is formed on the side of the opening 17. Therefore, after the inner core body 21 of the second shape retaining member 2 is pushed in until the front end surface of the engaging portion 26 and the outer side surface of the first flange portion 12 of the first shape retaining member 1 become a temporarily assembled state in which they are flush with each other, the second shape retaining member 2 is rotated counterclockwise in fig. 6A, whereby the engaging portion 26 of the second shape retaining member 2 is engaged with the engaged portion 18 of the first shape retaining member 1, and the assembled state of the shape retainer 10 in which the first shape retaining member 1 and the second shape retaining member 2 are coupled to each other can be stably maintained (see fig. 2).
Further, since the locking portion 26 provided at the distal end portion of the protrusion 23 is exposed on the outer wall surface of the first flange portion 12, it can be confirmed at a glance whether the locking portion 26 is located at the lock position where it is engaged with the engaged portion 18 or at the unlock position where it is not engaged, with the wire coil H held by the retainer 10. Therefore, when the shape keeper 10 is holding the wire coil H, the engagement portion 26 can be effectively prevented from being placed in a non-engagement state.
In the wire coil shape retainer 10 of the first embodiment, as shown in fig. 3, 3 slits 14 having a predetermined width W1 are formed over the entire length in the axial direction of the outer core 11, but the invention is not limited thereto, and the slits 14 may be formed in a part of the outer core 11, for example, in a region excluding the root end of the outer core 11. The number of slits 14 is not limited to 3, and may be 2, or 4 or more.
(second embodiment)
Fig. 11 is a perspective view showing a specific configuration of a first retaining member 1a constituting a wire coil retainer 10a according to a second embodiment of the present invention. Fig. 12 is a perspective view showing a specific configuration of the second conformal member 2a of the wire coil shaper 10a according to the second embodiment of the present invention. Fig. 13 is a perspective view showing an assembled state of the shape retaining device in which the first shape retaining member 1a and the second shape retaining member 2a of the second embodiment are coupled together.
The shape retainer 10a of the wire coil of the second embodiment is different from the first embodiment in the following points: in the region of the inner core 21a of the second shape retaining member 2a, except for the distal end portion, a protrusion 23a is provided, and a locking portion 26a formed to protrude from the distal end of the protrusion 23a to one side is provided, and in one side portion of the slit 14a in the peripheral surface of the outer core 11a of the first shape retaining member 1a, an engaged portion 18a for engaging with and disengaging from the locking portion 26a is provided.
In this configuration, after the inner core 21a of the second shape retaining member 2a is pushed into the outer core 11a of the first shape retaining member 1a, when the second shape retaining member 2a is rotated, as shown in fig. 13, the engaging portion 26a of the second shape retaining member 2a is engaged with the engaged portion 18a of the first shape retaining member 1a, whereby the state in which the first shape retaining member 1a and the second shape retaining member 2a are coupled to each other can be maintained.
Further, engaged portions such as the engaging portion 26a provided in the second shape retaining member 2a may be formed in both the first flange portion 12a of the first shape retaining member 1a and the outer core 11a so as to be engageable with and disengageable from each other.
(third embodiment)
Fig. 14 is a front view showing a state in which a shape retainer 10b of a wire coil according to a third embodiment of the present invention is disassembled into a first shape retaining member 1b and a second shape retaining member 2 b. Fig. 15 is a front view (a) and a side view (b) showing the structure of the locking portion 26b provided in the second shape retaining member 2 b. Fig. 16 is a front view showing an assembled state of the shape retainer 10b of the wire coil H according to the third embodiment.
A locking portion 26b formed of a pair of right and left bulging portions is formed at the tip end portion of the protrusion 23b provided on the inner core body 21b of the second shape retaining member 2b of the shape retaining device 10b constituting the wire coil according to the third embodiment. In the locking portion 26b, a tapered surface 31b whose front portion is tapered is formed at a distal end portion, and a reverse tapered surface 32b whose front portion is enlarged (thick) is formed at a proximal end portion.
On the other hand, a pair of left and right engaged portions 18b formed so as to narrow a part of the width of the slit 14b is formed in the outer core 11b of the first shape retaining member 1b constituting the shape retainer 10 b.
In this configuration, when the inner core 21b of the second shape retaining member 2b is pushed into the outer core 11b of the first shape retaining member 1b to connect the two members, the engaging portion 26b of the second shape retaining member 2b is pushed into the engaged portion 18b of the first shape retaining member 1b by the tapered surface 31b (see fig. 16), whereby the state in which the first shape retaining member 1b and the second shape retaining member 2b are connected to each other can be maintained.
Further, when the first shape retaining member 1b and the second shape retaining member 2b are separated from each other, the engaging portion 26b of the second shape retaining member 2b is disengaged from the engaged portion 18b of the first shape retaining member 1b by the reverse tapered surface 32b, whereby the engaged state between the engaging portion 26b and the engaged portion 18b can be released.
(fourth embodiment)
Fig. 17 is a perspective view showing a specific structure of a first shape retaining member 1c constituting a shape retainer according to a fourth embodiment of the present invention.
In the fourth embodiment, the outer core 11c of the first holding member 1c is formed in a tapered shape (テーパ) in which the outer diameter on the tip end side is set larger than the outer diameter on the root end side and the front portion is enlarged (thickened), a slit 14c having a front portion wide shape extending in the axial direction is formed in the outer core 11c, and the outer core 11c is separated into the plurality of divided pieces 15c by the slit 14 c.
In the case of the above-described configuration, when the outer core 11c is inserted into the center hole of the wire coil, the diameter of the distal end of the outer core 11c can be reduced by swinging and displacing the divided pieces 15c in the direction indicated by the arrow A, A with the base ends of the divided pieces 15c as fulcrums. Therefore, although the outer core 11c is formed in a tapered shape with a larger front portion, it can be smoothly inserted into the center hole of the wire coil.
In addition, in a state where the outer core 11c is inserted into the center hole of the wire coil, the outer peripheral surface thereof is pressed against the peripheral surface of the center hole of the wire coil by the restoring force of the outer core 11c, whereby the holding state of the wire coil can be stabilized.
That is, a shape keeper for a wire coil according to an aspect of the present invention is a shape keeper for a wire coil in which a wire is wound in a cylindrical shape, and includes: a first retaining member having a cylindrical outer core inserted into a center hole of the wire coil and a first flange covering one end surface of the wire coil; and a second shape retaining member having an inner core inserted into the outer core and a second flange portion covering the other end surface of the wire coil, wherein a slit extending in an axial direction of the outer core of the first shape retaining member is formed, and at least a part of the outer core is divided into a plurality of divided pieces by the slit.
According to this configuration, when the outer core of the first mold member is inserted into the center hole of the wire coil, the respective divided pieces are easily displaced by rocking, and the diameter of the outer core is reduced, whereby the work of inserting the outer core into the center hole of the wire coil can be smoothly performed. As a result, even when a manufacturing error occurs in the wire coil or the shape retainer, it is possible to facilitate mounting of the wire coil on the shape retainer, and reduce the possibility of occurrence of poor welding wire.
Preferably, the outer peripheral surface of the inner core has a projection extending in the axial direction, and the projection is capable of inserting the outer peripheral portion into the slit formed in the outer core.
With this configuration, the slit and the ridge are used as the guide portion, and thus the work of inserting the inner core of the second shape-retaining member into the outer core of the first shape-retaining member can be smoothly performed. Moreover, there are advantages in that: in the assembled state in which the inner core of the second shape retaining member is inserted into the outer core of the first shape retaining member, the slits and the projections can suppress relative rotation between the first shape retaining member and the second shape retaining member, thereby suppressing occurrence of rattling.
Further, a reinforcing piece having an outer diameter slightly smaller than an inner diameter of the outer core may be formed to protrude from an outer peripheral surface of the inner core.
According to this configuration, when the inner core of the second shape retaining member is inserted into the outer core of the first shape retaining member to assemble the two members, the outer peripheral surface of the reinforcing piece is slid along the outer core, whereby the assembling work of the shape retaining device can be smoothly performed. In addition, in the assembled state in which the outer core of the first shape retaining member retains the wire coil and the inner core of the second shape retaining member is inserted into the outer core, the split pieces constituting the outer core can be restricted from the inside by the reinforcing piece, so that deformation of the outer core of the first shape retaining member when the wire coil is used or the like can be effectively suppressed, and the wire coil can be stably retained by the shape retainer.
Further, it is preferable that a groove into which a tip end portion of the outer core can be fitted is formed in an inner wall surface of the second flange portion.
According to this configuration, in the assembled state of the shape retaining device in which the inner core of the second shape retaining member is inserted into the outer core of the first shape retaining member, the distal end portion of the outer core is fitted into the concave groove, whereby the swing of the divided pieces constituting the outer core of the first shape retaining member can be prevented. Therefore, the state in which the wire coil is held by the shape keeper can be further stabilized. In the assembled state, the distal end portion of the outer core is fitted into the groove of the second flange portion, and thus a gap can be prevented from being formed between the distal end portion of the outer core and the inner wall surface of the second flange portion. As a result, it is possible to effectively prevent the wire constituting the wire coil from being caught in the gap, and thus to prevent the operation of removing the core wire or the unnecessary wire coil from the shape retainer.
Further, at least one of the first flange portion and the second flange portion is preferably formed of a transparent or translucent material.
According to this configuration, in the retainer of the wire coil configured such that the end face of the wire coil on which the label is provided is covered with one of the first flange portion and the second flange portion, the flange portion covering the setting portion of the label is formed of a transparent or translucent material, whereby the label provided on the end face can be recognized through the transparent flange portion in a state where the retainer holds the wire coil. As a result, the type, material, and the like of the wire constituting the wire coil can be confirmed based on the description of the label.
Preferably, the protrusion has an engaging portion for maintaining an assembled state in which the inner core of the second shape retaining member is inserted into the outer core of the first shape retaining member, and at least one of the first flange portion and the outer core of the first shape retaining member has an engaged portion for engaging with and disengaging from the engaging portion.
According to this configuration, the engaging portion is engaged with the engaged portion, whereby the assembled state of the shape retaining device for coupling the first shape retaining member and the second shape retaining member together can be stably maintained when the wire coil is used. Further, after the wire coil is used or when another type of wire coil is exchanged, the engagement state between the engaging portion and the engaged portion is released, whereby the first shape retaining member and the second shape retaining member are separated, and a new wire coil can be easily attached to the shape retainer.
Preferably, the engaging portion is formed to protrude from a distal end portion of the ridge in one direction, an opening through which the distal end portion of the ridge and the engaging portion can be inserted is formed in the first flange portion of the first holding member, and the engaged portion is formed on a side of the opening.
According to this configuration, after the inner core body of the second shape retaining member is pushed in until the distal end surface of the engaging portion and the outer side surface of the first flange portion of the first shape retaining member are brought into the temporarily assembled state in which they are flush with each other, the second shape retaining member is rotated, whereby the engaging portion of the second shape retaining member is engaged with the engaged portion of the first shape retaining member, and the assembled state of the shape retainer in which the first shape retaining member and the second shape retaining member are coupled to each other can be maintained. Further, since the engaging portion provided at the distal end portion of the protrusion is exposed on the outer wall surface of the first flange portion, it can be confirmed at a glance whether the engaging portion is located at the lock position where the wire coil is engaged with the engaged portion or at the unlock position where the wire coil is not engaged with the retainer. Therefore, when the wire coil is held by the retainer, the engagement portion can be effectively prevented from being placed in the non-engagement state.
The outer core may have a tapered shape in which the outer diameter of the outer core on the tip end side is set larger than the outer diameter of the outer core on the root end side, and the front portion is enlarged.
According to this configuration, when the outer core is inserted into the center hole of the wire coil, the diameter of the distal end of the outer core can be reduced by swinging and displacing the divided pieces about the base ends of the divided pieces as fulcrums. Therefore, although the outer core is formed in a tapered shape with the front portion enlarged, it can be smoothly inserted into the center hole of the wire coil. In addition, in a state where the outer core is inserted into the center hole of the wire coil, the outer peripheral surface of the outer core is pressed against the peripheral surface of the center hole of the wire coil by the restoring force of the outer core, whereby the holding state of the wire coil can be stabilized.
According to the shape fixer of the welding wire coil, in the case that the welding wire coil or the shape fixer generates manufacturing errors, the installation of the welding wire coil is easy, and the possibility of poor welding wire can be reduced.
The present application is based on the malaysia application No. pi2017000051, filed on 16/1/2017, the content of which is included in the present application. The specific embodiments or examples configured in the items for carrying out the embodiments of the present invention are merely illustrative of the technical content of the present invention, and the present invention should not be construed narrowly limited by such specific examples.
Description of the reference numerals
1 first conformal part (component)
2 second conformal component
10. 10a, 10b, 10c shape-retaining device
11. 11a, 11b, 11c outer core
12 first flange part
14. 14a, 14b, 14c slot
15. 15c dividing sheet
18. 18a, 18b engaged parts
21. 21a, 21b inner core body
22 second flange part
23. 23a, 23b ridge
24 reinforcing sheet
26. 26a, 26b locking parts
H welding wire coil
Claims (13)
1. A shape-retaining device for a wire coil formed by winding a wire into a cylindrical shape, comprising:
a first retaining member including a cylindrical outer core body for insertion into a center hole of the wire coil and a first flange portion covering one end surface of the wire coil; and
a second conformal member including a cylindrical inner core inserted into the outer core and a second flange portion covering the other end surface of the wire coil,
the outer diameter of the inner core is smaller than the inner diameter of the outer core,
the outer core of the first holding member is formed with a slit extending in the axial direction thereof, and at least a part of the outer core is separated into a plurality of divided pieces by the slit.
2. The wire coil shape keeper of claim 1, wherein:
the outer peripheral surface of the inner core is provided with a projection extending in the axial direction, and the outer peripheral portion of the projection is insertable into the slit formed in the outer core.
3. The wire coil shape keeper of claim 1, wherein:
a reinforcing piece is formed on the outer peripheral surface of the inner core, and the reinforcing piece protrudes from the outer peripheral surface and has an outer diameter slightly smaller than the inner diameter of the outer core.
4. The wire coil shape keeper of claim 2, wherein:
a reinforcing piece is formed on the outer peripheral surface of the inner core, and the reinforcing piece protrudes from the outer peripheral surface and has an outer diameter slightly smaller than the inner diameter of the outer core.
5. The shape-retaining device for a wire coil as defined in any one of claims 1 to 4, wherein:
a groove into which the tip end portion of the outer core is fitted is formed in an inner wall surface of the second flange portion.
6. The shape-retaining device for a wire coil as defined in any one of claims 1 to 4, wherein:
at least one of the first flange portion and the second flange portion is formed of a transparent or translucent material.
7. The wire coil shape keeper of claim 2, wherein:
a locking portion for maintaining an assembled state in which the inner core of the second shape retaining member is inserted into the outer core of the first shape retaining member is formed in the ridge,
at least one of the first flange portion and the outer core of the first holding member is provided with an engaged portion with which the engaging portion is engaged, and the engaging portion and the engaged portion can be engaged with and disengaged from each other.
8. The wire coil shape keeper of claim 7, wherein:
the locking part is formed to protrude from the front end part of the protruding strip to one side direction,
an opening through which the distal end portion of the ridge and the engagement portion are inserted is formed in the first flange portion of the first holding member, and the engaged portion is formed on a side of the opening.
9. The shape-retaining device for a wire coil as defined in any one of claims 1 to 4, wherein:
the outer core is formed in a tapered shape with a larger tip, and the outer diameter of the outer core on the tip side is set larger than the outer diameter of the outer core on the root side.
10. The wire coil shape keeper of claim 5, wherein:
the outer core is formed in a tapered shape with a larger tip, and the outer diameter of the outer core on the tip side is set larger than the outer diameter of the outer core on the root side.
11. The wire coil shape keeper of claim 6, wherein:
the outer core is formed in a tapered shape with a larger tip, and the outer diameter of the outer core on the tip side is set larger than the outer diameter of the outer core on the root side.
12. The wire coil shape keeper of claim 7, wherein:
the outer core is formed in a tapered shape with a larger tip, and the outer diameter of the outer core on the tip side is set larger than the outer diameter of the outer core on the root side.
13. The wire coil shape keeper of claim 8, wherein:
the outer core is formed in a tapered shape with a larger tip, and the outer diameter of the outer core on the tip side is set larger than the outer diameter of the outer core on the root side.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI2017000051 | 2017-01-11 | ||
| MYPI2017000051A MY190948A (en) | 2017-01-11 | 2017-01-11 | Solder-wire coil form retainer |
| PCT/JP2017/040708 WO2018131278A1 (en) | 2017-01-11 | 2017-11-13 | Solder wire coil shape retainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110023221A CN110023221A (en) | 2019-07-16 |
| CN110023221B true CN110023221B (en) | 2020-12-08 |
Family
ID=62839844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780073102.8A Active CN110023221B (en) | 2017-01-11 | 2017-11-13 | Shape-keeping device for welding wire coil |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7022408B2 (en) |
| CN (1) | CN110023221B (en) |
| MY (1) | MY190948A (en) |
| WO (1) | WO2018131278A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023003615A1 (en) * | 2021-07-21 | 2023-01-26 | Commscope Technologies Llc | Collapsible, returnable plastic reels |
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| JP3199234U (en) * | 2015-06-01 | 2015-08-13 | 株式会社日本スペリア社 | Solder winding body fixture |
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| JPH0687373U (en) * | 1992-10-26 | 1994-12-22 | アイシート工業株式会社 | Reel of carrier tape for electronic components |
| JPH0717671A (en) * | 1993-07-02 | 1995-01-20 | Fujikura Ltd | Winding drum for filament material |
| JP2007185432A (en) * | 2006-01-16 | 2007-07-26 | Aisin Seiki Co Ltd | Bobbin thread take-up bobbin of sewing machine |
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2017
- 2017-01-11 MY MYPI2017000051A patent/MY190948A/en unknown
- 2017-11-13 CN CN201780073102.8A patent/CN110023221B/en active Active
- 2017-11-13 JP JP2018561825A patent/JP7022408B2/en active Active
- 2017-11-13 WO PCT/JP2017/040708 patent/WO2018131278A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3337157A (en) * | 1965-09-13 | 1967-08-22 | Air Reduction | Welding reel hub and brake assembly |
| JPS56170166U (en) * | 1980-05-20 | 1981-12-16 | ||
| JPH11100170A (en) * | 1997-06-20 | 1999-04-13 | Tanaka Electron Ind Co Ltd | Spool holder of bonding wire and spool handling method using the holder |
| CN1733409A (en) * | 2004-08-02 | 2006-02-15 | 株式会社神户制钢所 | Welding wire reel |
| CN100453238C (en) * | 2004-08-02 | 2009-01-21 | 株式会社神户制钢所 | Welding wire reel |
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| JP2016108154A (en) * | 2014-11-29 | 2016-06-20 | 株式会社日本スペリア社 | Bobbinless wire solder manufacturing take-up fixture, bobbinless wire solder manufactured using the fixture, and bobbinless wire solder roll manufacturing method |
| JP3199234U (en) * | 2015-06-01 | 2015-08-13 | 株式会社日本スペリア社 | Solder winding body fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| MY190948A (en) | 2022-05-23 |
| JP7022408B2 (en) | 2022-02-18 |
| WO2018131278A1 (en) | 2018-07-19 |
| JPWO2018131278A1 (en) | 2019-11-07 |
| CN110023221A (en) | 2019-07-16 |
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