JP2500262Y2 - Rotation holder for solder bobbins - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solder bobbin rotary holder for rotatably supporting a bobbin wound with a linear solder. More specifically, the present invention relates to an improvement of a solder bobbin rotating holder for rotatably supporting a solder bobbin and rotating the solder bobbin when the linear solder is pulled out.

[0002]

2. Description of the Related Art When soldering is performed using linear solder wound on a solder bobbin, it is preferable to rotatably support the solder bobbin in order to prevent disconnection of the linear solder. If the solder bobbin remains on the work desk or the like, the solder bobbin does not easily rotate, and the resistance when pulling out the linear solder increases and the solder easily breaks. Therefore,
Conventionally, a rotary holder 1 for a solder bobbin as shown in FIG.
No. 03 is prepared, the solder bobbin 101 is placed on the No. 03, and the linear solder 102 is taken out.

The holder 105 includes a base 106, a support shaft 107 erected in the center thereof, and a solder bobbin 101.
, 108 and a plurality of steel balls 108, ..., 10 that support the flange 103 of the
Retainer plate 109 that keeps the positional relationship between 8 fixed
It consists of and. The solder bobbin 101 is the support shaft 1.
The hollow shaft 104 portion is fitted into 07 and the steel ball 10
, 108, and the flange 103 is supported by a plurality of steel balls 108 ,. The solder bobbin 101 is easily rotated by a slight force by the rotation of the steel balls 108, ..., 108 to assist in taking out the linear solder 102.

Further, as shown in FIG.
In some cases, the guide member 201 for keeping the extraction position of 2 constant is used. This guide member 201 is for taking out the linear solder 102 in the middle of the flanges 103, 103 on both sides of the solder bobbin 101.
Of the coil-shaped mounting portion 203 that is fitted to the upper end portion of the support member 201 to support the guide member 201, and the ring portion 202 that allows the linear solder 102 to pass through. The mounting portion is formed after the solder bobbin 101 is fitted into the support shaft 107. 203 is fitted, and the tip of the linear solder 102 unwound from the solder bobbin 101 is passed through the ring portion 202 to make the extraction position constant.

[0005]

However, in such a conventional solder bobbin rotary holder, when the linear solder 102 is pulled too much, unnecessary linear solder 102 is generated due to excessive rotation due to inertia of the solder bobbin 101. It is drawn out, spreads around the holder 105, and falls down. And
When the linear solder is pulled out again in this state, the hanging linear solder 102 is pulled and wound around the base 106, or between the retainer plate 109 on the base 106 and the flange 103 of the solder bobbin 101. Is caught in the gap S and is entangled with the support rod 107 and broken.

Further, also in the holder which employs the guide member 201 for preventing the disconnection accident, when the linear solder 102 is excessively pulled too much and a large amount of the linear solder is fed out, it is possible to prevent the winding. could not. Moreover, each time the solder bobbin 101 is replaced, the guide member 2
01 is attached and detached, and the linear solder 102 is attached to the ring portion 202.
It takes time to pass through. Further, there is a drawback that the increase in the number of guide members 201 increases the cost and the cumbersomeness of management.

According to the present invention, even if the linear solder wound around the solder bobbin may droop when it is drawn out, it does not get entangled, which enables smooth feeding, and also enables the loading of the solder bobbin. An object of the present invention is to provide a rotary holder for a solder bobbin that does not require special labor for removal.

[0008]

In order to achieve the above object, a solder bobbin rotary holder according to the present invention is a solder bobbin in which a flange is formed at both ends of a hollow shaft portion and linear solder is wound between them. In a rotary holder for a solder bobbin that rotatably supports the hollow shaft portion in a vertically standing state, a base on which a support shaft that is fitted into the hollow shaft portion of the solder bobbin is erected, and below the solder bobbin. And a receptacle having a recess into which the flange portion is fitted, a flange protruding outside the recess in a direction parallel to the hollow shaft portion, and means for rotatably supporting the solder bobbin.

Further, in the present invention, the gap formed between the recess of the tray and the flange of the solder bobbin is smaller than the diameter of the linear solder.

Further, in the present invention, a plurality of ball holes are opened in the concave portion of the tray, the balls serving as the rotation supporting means mounted on the base are exposed from the openings, and the solder bobbin is formed by the balls. I try to get them to support me directly.

Further, in the present invention, the receiving tray is detachably attached to the support shaft of the base, and the receiving tray itself is rotatably supported by the rotation supporting means.

[0012]

Therefore, in this solder bobbin rotary holder, the setting is completed only by inserting the hollow shaft portion of the solder bobbin into the support shaft of the base and fitting the flange portion into the recess of the tray. Then, when the drawing-out of the linear solder is started, the freely rotatable solder bobbin also rotates and the linear solder is drawn out with a light force.

Here, even if the linear solder is slackened due to over-rotation due to inertia of the solder bobbin due to excessive pulling of the linear solder, the slack linear solder is blocked by the flange on the outer periphery of the tray and is outside the tray. There is no protrusion. Further, the linear solder is not caught between the flange fitted in the recess of the tray and the tray. In particular, when the gap between the flange and the recess is set to be smaller than the diameter of the linear solder, there is no possibility that the slack linear solder fits. Therefore, as the use of the linear solder progresses, the linear solder on the saucer disappears and the original state is naturally restored, so that there is no problem in feeding.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 is a vertical sectional view showing a first embodiment of a rotary holder for a solder bobbin according to the present invention. This solder bobbin rotary holder is composed of a base 11, a support shaft 12, a tray 13 and a rotation support means 14, and the solder bobbin 1 is supported so as to rotate together with the tray 13.
The solder bobbin 1 has flanges 3 and 3 formed at both ends of the hollow shaft portion 4, and the linear solder 2 is wound between them.

The base 11 is formed of a heavy object which does not fall down by the rotation of the solder bobbin 1, and the rotation support means 14
And supports the support shaft 12 vertically. For example, it is formed into a truncated cone shape as shown by cast iron or the like,
At the center thereof, there is provided a hollow hole 11b for penetrating the support shaft 12, and a recess 11a for accommodating a tightening nut 18 for fixing the support shaft 12 to the base 11. Also, the base 11
Side walls 11c are erected on the outer peripheral edge of the upper surface of the plurality of balls 15, ..., 1 for rotatably supporting the solder bobbin 1.
It is provided so as to prevent the retainer plate 16 holding 5 from moving laterally, that is, in the radial direction of the solder bobbin 1. The retainer plate 16 is opened so that ball holes 16 a having a diameter slightly smaller than that of the balls 15 are evenly arranged by the number of the balls 15, and the balls 15 placed on the upper surface of the base 11 are fitted into the retainer plate 16. A part of the solder holder 1 is held so as to be exposed upward, and the positional relationship between the balls 15, ..., 15 is kept constant so that the solder holder 1 does not tilt.

The support shaft 12 is provided with a stepped screw portion 12a at its lower portion, for example, and is fixed to the base 11 with a tightening nut 18. That is, the threaded portion 12a is penetrated through the fool hole 11b of the base 11 and tightened with the nut 18 from the bottom surface side of the base 11 to be fixed to the base 11.

On the tray 13, the solder bobbin 1 is placed,
It rotates together with the solder bobbin around the support shaft 12 on the ball 15, and is for receiving the linear solder 2 hanging from the solder bobbin 1. The circular recess 19 for receiving the solder bobbin 1 and the solder bobbin 1 It has a flange 20 for preventing an excessively extended portion of the linear solder 2 due to the rotation from protruding to the base 11 side. Further, a central hole 21 through which the support shaft 12 penetrates is opened at the center of the recess 19. In the recess 19, the diameter of the recess 19 is set so that the clearance S ₁ between the solder bobbin 1 and the flange 3 is smaller than the diameter of the linear solder 2.
For example, the diameter of the recess 19 is equal to that of the flange 3 of the solder bobbin 1.
Of the diameter of the linear solder 2 which is about the same as or larger than the diameter of 2
It is formed large in the range of not more than twice. Of course, the solder bobbin 1 may be fitted by slightly press-fitting it into the recess 19. This fixing method is suitable when the tray 13 is made of an elastic material such as plastic. However, the receiving tray 13 is not particularly limited to plastic, and may be a metal plate drawn or pressed, or a cast product.

The rotation supporting means 14 is for rotatably supporting the solder bobbin 1 with a light force. In the case of the present embodiment, the solder tray 13 itself for supporting the solder bobbin 1 is rotatably supported so that the solder bobbin 1 is soldered. The bobbin 1 can be rotated. That is, the rotation support means 14 is the base 1
, 15 and a retainer plate 16 that keeps the positional relationship of these balls constant, and a ball slightly protruding from the retainer plate 16. The lower surface of the tray 13 is supported by 15 ,. The retainer plate 16 is mounted on a boss portion 11d protruding in the center of the base 11 and rotatably supported.

According to the solder bobbin rotary holder configured as described above, the hollow bobbin 4 of the solder bobbin 1 on which the linear solder 2 is wound is fitted into the support shaft 12 and fitted into the recess 19 and is ready for use. You can start. Then, when the linear solder 2 is suddenly pulled out, the solder bobbin 1
Even if the winding of the linear solder 2 is partially spread due to the over-rotation due to the inertia of the base plate, it is not blocked by the flange 20 of the tray 13 and remains in the tray 13 and does not hang down around the base 11. . Further, the linear solder 2 having the winding spread in the receiving tray 13 gradually shrinks in diameter while approaching the solder bobbin 1 while being drawn out of the receiving tray 13,
Since the flange 3 portion of the above is fitted in the concave portion 19, the linear solder 2 is not caught under the flange 3. In particular, the flange 3 and the recess 19 of the solder bobbin 1
If the gap S ₁ between the two is set smaller than the diameter of the linear solder 2, it will not be caught in this gap S ₁ . Moreover, since the drawn-out linear solder 2 is drawn out above the edge of the flange 20 of the tray 13, the linear solder 2 taken out from the vicinity of the recess 19 is also necessarily drawn upward, and the flange 3 of the solder bobbin 1 is It deviates from the gap S ₁ with the recess 19.

Therefore, according to this solder bobbin rotary holder, when the linear solder 2 is pulled, the solder bobbin 1 rotates together with the tray 13 on the base 11, and the linear solder 2 is sent out. Even if the linear solder 2 is strongly pulled, the linear solder 2 is received in the receiving tray 13 by the flange 20 and is sequentially pulled out without being entangled with or caught by the support shaft 12 or the like, and then naturally returns to the original normal state. Return to normal state.

That is, as in the prior art, it may hang down around the base 11 or may be fitted into the gap between the base 11 and the solder bobbin 1 to break the wire, and it may take time and effort for restoration. There was nothing.

The solder bobbin rotary holder of this embodiment is the same as the conventional commercially available holder except that the rotary holder for the solder bobbin is provided. The holder of the present invention can be constructed by assembling the holder.

FIG. 2 shows another embodiment. This example is
The solder bobbin 1 is directly supported by the balls 15, ..., 15,
The tray 13 is configured to also serve as a retainer. A ball hole 2 in which the balls 15, ..., 15 are fitted into the bottom surface 21 of the recess 19 of the tray 23 to slightly project
2 are provided as many as the balls 15.

Therefore, in this embodiment, the rotation supporting means is the ball 15, which rolls in the annular groove 17 of the base 11.
, 15, and a tray 13 for keeping their positional relationship constant, and the balls 15, ..., 15 are configured to directly support the solder bobbin 1.

In this embodiment, the tray 13 is supported so as to rotate around the support shaft 12 as the balls 15, ..., 15 roll in the annular groove 17, but the support shaft 12 supports the same. It does not matter if they are fixed by press fitting or by sandwiching between the base 11 and the support shaft 12.

FIG. 3 shows another embodiment. This example is
How to make the recess 19 of the tray 13 and rotation support means 1
It is a modification of 4. The solder bobbin rotary holder according to this embodiment has a protrusion 23 that is formed in a ring shape on the base 11.
And the flat bottom surface 24 of the tray 13 that comes into contact therewith constitute the rotation supporting means 14.

On the base 11, one or a plurality of protrusions 23, ..., 23 are formed concentrically around the support shaft 12. As the protrusions 23, for example, as shown in FIG. 3B, short arc-shaped protrusions each having a curved top portion are annularly arranged at regular intervals, or as shown in FIG. Provide a continuous annular protrusion. The shape and the arrangement method of the projections 23 are not particularly limited, and may be a single ring, or may be a group of point projections (not shown). In short, it is sufficient if the tray can be rotatably supported by a small contact frictional force (see FIG. B). Further, the projections 23 parts of polytetrafluoroethylene (trade name: Teflon) may be formed of a low friction material, such as.

Further, as shown in this embodiment, the tray 13
The annular projection 25 is formed on the bottom surface of the flange 3 of the solder bobbin 1 so that
It is also possible to make it a concave portion 19 for accommodating the. In the case of the solder bobbin rotary holder of this embodiment, since the configuration of the tray 13 and the rotation support means 14 is simple, both the tray 13 and the base 11 have advantages that they can be easily produced and the cost is also easy.

FIG. 4 shows a fourth embodiment. In this embodiment, the rotation support means 14 is constituted by the protrusions 26 formed on the side of the tray 13. The top surface of the base 11 is simply a flat surface. On the other hand, on the receiving tray 13, a protrusion 26 protruding at the same height toward the base 11, for example, 1
A ring-shaped projection of the book or a group of a plurality of band-shaped projections or point projections arranged in a ring shape is provided, and the contact between the projection 26 and the flat surface of the base 11 rotatably supports the tray 13. According to the rotation supporting means 14 having this structure, since line contact or point contact is made, it is preferable that the friction bobbin force is relatively low in order to mount and rotate a relatively heavy solder bobbin. Therefore, when adopting such a configuration, it is important to reduce the frictional resistance between the protrusion 26 of the tray 13 and the base 11 as much as possible. Therefore,
It is preferable to form the tray 13 itself, or at least the contact portion of the tray 13 or the base 11 with a low friction material such as Teflon, or to make the contact area as small as possible. For example, it is preferable to attach a low friction material such as a Teflon sheet to the surface of the receiving tray 13 on the side of the base 11 on which the protrusion 26 slides. Further, although the projection 26 is formed outside the recess 19 in the present embodiment, it is not particularly limited to that shown in the drawing, and may be provided on the bottom surface inside the recess 19.

In the case of this embodiment, the tray 13 can be easily made by pressing, and the base 11, the support shaft 12 and the like are also simple in structure, so that the cost can be remarkably reduced.

FIG. 5 shows a fifth embodiment. In this embodiment, a bearing 27 is used as the rotation supporting means 14 in place of the balls 15, ..., 15 shown in FIGS. 1 and 2, and the tray 13 is rotatably mounted on the base 11 via the bearing 27. It is something that is done.

The bearing 27 has a threaded portion 12 of the support shaft 12.
It is installed by a bearing holding washer 28 screwed to the base of a and a bearing box 29 fixed to the bottom surface of the tray 13,
The tray 13 and the base 11 are rotatably connected. Although the thrust ball bearing 55 is used as the bearing 27 in the present embodiment, it is not particularly limited to this, and a proper one such as a radial ball bearing or a cylindrical roller bearing may be selected and used. Further, the rotation supporting means 14 can be applied to the trays 13 of other embodiments.

The above-mentioned embodiment is one example of the preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention. For example, the rotation support means 14 is not limited to the ball 15, but rollers, rollers, etc. may be used.
It is also possible to combine the tray 13 of FIG. 1 with the base 11 of FIG.

[0035]

As is apparent from the above description, the solder bobbin rotary holder of the present invention has the above-described solder bobbin in which the flange is formed at both ends of the hollow shaft portion and the linear solder is wound between them. In a rotary holder for a solder bobbin that rotatably supports a hollow shaft portion in a vertically standing state, a base on which a support shaft that is fitted into the hollow shaft portion of the solder bobbin is erected, and a flange below the solder bobbin. Since it is composed of a tray having a concave portion into which the portion is fitted and a flange protruding outside the concave portion in a direction parallel to the hollow shaft portion, and means for rotatably supporting the solder bobbin, Even if the solder may sag during feeding, it will not be caught between the solder bobbin and the holder and will not be broken. That is, even if the linear solder may be pulled too strongly and the linear solder may sag due to over-rotation due to the inertia of the solder bobbin, the sagging linear solder that is blocked by the flange on the outer circumference of the saucer does not stick out of the saucer. Absent.
Further, the linear solder is not caught between the flange fitted in the recess of the tray and the tray. In particular, when the gap between the flange and the recess is set to be smaller than the diameter of the linear solder, there is no possibility that the slack linear solder fits. Therefore, as the use of the linear solder progresses, the linear solder on the saucer disappears and it automatically returns to its original state.
It does not hinder the delivery.

[Brief description of drawings]

1 is a longitudinal sectional view showing a first embodiment of a rotary holder for a solder bobbin according to the present invention.

FIG. 2 is a sectional view showing a second embodiment of a rotary holder for a solder bobbin according to the present invention.

3A and 3B are views showing a third embodiment of a rotary holder for a solder bobbin according to the present invention, in which FIG. 3A is a longitudinal sectional view, and FIGS. 3B and 3C are perspective views showing an embodiment of a base top surface. Is.

FIG. 4 is a vertical sectional view showing a fourth embodiment of a rotary holder for a solder bobbin according to the present invention.

FIG. 5 is a vertical sectional view showing a fifth embodiment of the rotary holder for the solder bobbin of the present invention.

FIG. 6 is a perspective view of a conventional rotary holder for a solder bobbin.

FIG. 7 is a vertical cross-sectional view showing another example of a conventional solder bobbin rotary holder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solder bobbin 2 Wire solder 3 Flange of solder bobbin 4 Hollow shaft part of solder bobbin 11 Base 12 Support shaft 13 Receiving tray 14 Rotation supporting means 19 Recessed tray 20 Receptacle flange

Claims (4)

(57) [Scope of utility model registration request] 1. A rotation for a solder bobbin which rotatably supports a solder bobbin in which flanges are formed at both ends of a hollow shaft portion and linear solder is wound between them, with the hollow shaft portion standing vertically. In the holder, a base on which a support shaft fitted into the hollow shaft portion of the solder bobbin is provided upright, a recess into which a lower flange portion of the solder bobbin is fitted, and a hollow portion outside the recess and parallel to the hollow shaft portion. A solder bobbin rotary holder comprising: a pan having a flange projecting in a direction and means for rotatably supporting the solder bobbin. 2. The rotary holder for a solder bobbin according to claim 1, wherein the gap formed between the recess of the tray and the flange of the solder bobbin is smaller than the diameter of the linear solder. 3. A plurality of ball holes are opened in the concave portion of the tray, the balls as rotation supporting means mounted on the base are exposed through the openings, and the solder bobbin is directly supported by the balls. The rotary holder for a solder bobbin according to claim 1 or 2, wherein. 4. The solder bobbin according to claim 1, wherein the tray is detachably attached to a support shaft of the base, and the tray itself is rotatably supported by a rotation support means. Rotating holder.