JPH09221272A - Winding jig with center presser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the damage of a small bobbin or a bobbin having weak mechanical strength by utilizing the repulsion of magneto to fix the bobbin, simplifying the structure, making a center presser section lightweight, and reducing the torsional load to the bobbin when the bobbin is rotated. SOLUTION: When a bobbin 11 is to be fixed to a jig 1, the rotation of the rotary shaft 8 of a center presser is regulated by detents kept in contact from both sides with cut portions 14 on both side faces of the center presser rotary shaft protruded to the opposite side to the bobbin 11. One end of the winding jig 1 with the center presser is separately held by a moving unit, both shafts are moved from a spindle rotary shaft 4 in the widening direction between them against the repulsion of magnets 6, 10, and the bobbin 11 is inserted between them. When the winding jig 1 with the center presser is returned to the original position, the bobbin 11 is held between both shafts by the repulsion of the magnets 6, 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a bobbin winding jig for winding a wire to produce a coil, and in particular, fixing the bobbin from both sides of the bobbin to stably wind the bobbin. A winding jig with a center presser.

[0002]

2. Description of the Related Art Conventionally, when winding on a solid coil bobbin such as a drum coil, in order to fix the bobbin, the collar of the bobbin is fixed to a chuck connected to the spindle, and the spindle is rotated to wind the coil. Was going on. However, this method has a problem that the bobbin moves during winding, or the bobbin is damaged if the chucking force is increased so as not to move.

Therefore, a center retainer for urging the bobbin from the side facing the spindle side is provided, the bobbin is fixed by the spindle side bobbin receiver and the center retainer side bobbin pushing seat, and the spindle side bobbin retainer is rotated by the rotation of the spindle. , A center-holding winding jig has been proposed in which the bobbin and the center-holding-side bobbin pusher seat are integrally rotated to stably wind the bobbin without applying a load to the bobbin. (Actual Kaihei 6-23232)

[0004]

However, in the conventional winding jig with center presser, the center presser bobbin pressing rotary seat rotates through the bearing built in the center presser side bearing accommodating portion of the jig base. In this structure, a spring for urging the center pressing and pressing rotary seat toward the bobbin is housed in the center pressing member, and an extension / contraction mechanism for the center pressing and pressing rotary seat is also required.

Therefore, the structure of the center presser becomes complicated, and the rotating portion becomes heavy, and the load of twisting is applied to the bobbin accordingly, so that the small bobbin,
There was a problem in winding a bobbin of low strength. For this reason, there has been a demand for a center-holding wire winding jig having a simple structure and a light center-holding rotary seat.

[0006]

According to a first aspect of the present invention, a bearing accommodating portion is provided at both ends of a jig base, and a bearing is accommodated in each of the bearing accommodating portions. One of the bearings has a structure in which the center pressing rotary shaft penetrates and the bobbin is held between both shafts by the repulsive force of a pair of magnets, and the spindle rotating shaft, bobbin, and center pressing rotary shaft rotate together. ing.

According to a second aspect of the present invention, bearing housings are provided at both ends of the jig base, the bearings are housed in the respective bearing housings, one of the bearings is a spindle rotary shaft, and the other of the bearings is a center. The bobbin is held between the two shafts by the repulsive force of the paired magnets that penetrates the holding rotary shaft, and at least one shaft is opposed to the jig body against the repulsive force of the paired magnets. The bobbin is moved and inserted and fixed between both shafts, and the spindle rotating shaft, the bobbin, and the center pressing rotating shaft are integrally rotated.

According to the third aspect of the present invention, one of the pair of magnets is fixed to the spindle rotating shaft, and the other is fixed to the bearing receiving portion on the spindle rotating shaft side. It is configured to be relatively slidable.

According to a fourth aspect of the present invention, the spindle rotary shaft is directly or indirectly pushed or pulled into or from a fitting portion of a carrier pallet for carrying the spindle of the winding machine and the winding jig with the center presser. It is configured to be removable.

[0010]

By using a magnet and pressing the bobbin by its repulsive force, the structure is simplified as compared with the case of using a spring. Therefore, the center presser is lightweight, and the load applied to the bobbin during rotation can be reduced.

By transferring the bobbin together with the winding jig between the winding machine spindle and the transfer pallet,
The position of the bobbin is kept accurate and the winding accuracy is improved.

[0012]

EXAMPLES Next, the winding jig with a center presser of the present application will be described in detail with reference to Examples.

In FIG. 1, a winding jig with a center presser (1) has a spindle rotating shaft (3) in a left bearing 1 accommodating portion (3) among bearing accommodating portions at both ends of a jig base (2). A bearing 1 (5) and a magnet 1 (6), through which 4) penetrates, are fixedly attached. On the other hand, the bearing 2 (9) through which the center pressing rotary shaft (8) penetrates is fixed to the bearing 2 housing portion (7) on the right side.

The spindle rotary shaft (4) and the center pressing rotary shaft (8) are rotatably pierced by respective bearings, and the magnet 2 (10) is provided on the bobbin side of the spindle rotary shaft (4). The magnets 2 (10) are fixed and face each other so that the magnets 2 (10) repel each other so as to face the magnets 1 (6) fixed to the left bearing 1 housing portion (3).

Further, a concave portion (12) for accommodating the bobbin collar is provided on a side surface of the spindle rotating shaft (4) which is in contact with the bobbin (11). In this example, the jig for winding the drum core is shown, but in the case of other bobbins, the shape for holding the bobbin can be changed depending on the shape. On the other hand, the side surface of the center pressing rotary shaft (8) in contact with the bobbin (11) is also provided with a recess (13) for accommodating the bobbin collar.

In this example, the spindle rotation shaft (4)
Bearing 1 (5) is a plain bearing, and the spindle rotating shaft (4) is rotatable with respect to the bearing 1 (5) and is slidable back and forth. When a pair of repulsive magnets are provided in the bearing 2 accommodating portion (7) containing the center holding rotary shaft (8) and its bearing 2 (9), the center holding bearing 2 (9) may be a sliding bearing. .

When actually fixing the bobbin (11) to the jig, in order to regulate the rotation of the center pressing rotary shaft (8), cut both side surfaces of the center pressing rotary shaft protruding to the opposite side from the bobbin. Rotation is restricted by rotation stoppers (not shown) that come into contact with the portion (14) from both sides.

One end of the winding jig with a center presser (1) is separately held by a moving unit (not shown), and the spindle rotating shaft (4) extends in a direction in which the two shafts widen against the repulsive force of the magnet. The bobbin (1
Insert 1). Then, when the winding jig with a center presser (1) is returned to its original position, the bobbin (11) is held between both shafts by the repulsive force of the magnet. At this time, the spindle rotation shaft (4) and the jig main body move relatively, but this is due to the bearing 1 (5) built in the bearing 1 housing portion (3) on the spindle rotation shaft (4) side, This is possible because the spindle rotation shaft (4) is configured to be rotatable and slidable.

Further, in FIG. 1, the portion of the spindle rotating shaft that projects to the side opposite to the bobbin is fixed to a connecting member (15) fitted to the spindle of the winding machine. Connecting member (1
A hole for accommodating the spindle rotation shaft (4) is provided on the right side of 5), and the spindle rotation shaft (4) is accommodated in this hole, and a screw cut toward the center from the outer periphery of the coupling member (15). Tighten the screws in the holes to fix them.

The other end of the connecting member (15) is fitted in a fitting hole provided in the spindle. A hole is provided from the outer circumference of the spindle fitting hole toward the center, and a ball plunger, which is biased by a spring, is accommodated therein. Then, when the connecting member (15) is inserted into the spindle fitting hole, the connecting member (1
The ball plunger fits in the groove (16) provided in 5), and the spindle and the connecting member (15) are fixed.

When the spindle of the winding machine is rotated in this state, the spindle, the connecting member (15), the spindle rotating shaft (4), the bobbin (11), and the center pressing rotating shaft (8) rotate together. To do. In this case, since the center pressing portion is lightweight, the load of twisting the bobbin is reduced. The winding around the bobbin is performed by winding a wire rod fed from a nozzle (not shown) around the bobbin. Make sure that the jig does not become unstable when winding.
Guide (not shown) for fixing the jig base (2)
To fix the jig.

When the winding is finished, the center pressing rotary shaft (8) is stopped again, and the jig body is moved by a separate moving unit (not shown) in the direction in which the distance between the two shafts increases. , Remove the bobbin (11) from between both shafts.

After the winding, when moving to the next work, the winding pallet (1) with the center presser, to which the bobbin (11) is fixed, is transferred by a transfer device (not shown) to a transfer pallet (not shown). The transfer pallet is moved to the next work station. The winding jig with a center presser (1) of the present invention is fitted to a carrier pallet while holding the bobbin (11) and moved to the next station on the conveyor. The fitting portion of the transfer pallet has the same structure as the fitting portion of the spindle described above.

Between the transfer pallet and the winding device, the winding jig (1) with the center presser is pulled out together with the bobbin (11) between the transfer pallet and the spindle of the winding machine, inverted, and moved. However, a delivery device for fitting is provided.

[0025]

As described above, the winding jig with a center presser of the present invention uses the repulsive force of the magnet to fix the bobbin, and therefore the structure is simpler than that when a spring is used. In addition, since the center pressing portion can be made lighter, the load of twisting the bobbin when the bobbin rotates can be reduced, which is effective for a small bobbin or a bobbin having low mechanical strength.

Further, if the present center pressing winding jig is detachably attached to the spindle or the carrier pallet, the bobbin position accuracy is maintained and accurate winding is possible, as compared with the case of directly delivering the bobbin.

[Brief description of drawings]

FIG. 1 is a front view of a center press winding jig showing an embodiment of the present invention.

FIG. 2 is likewise a plan view of a center pressing winding jig.

[Explanation of symbols]

 1 Winding jig with center presser 2 Jig base 3 Bearing 1 accommodating part 4 Spindle rotating shaft 5 Bearing 1 6 Magnet 1 7 Bearing 2 accommodating part 8 Center pressing rotating shaft 9 Bearing 2 10 Magnet 2 11 Bobbin 12 Bobbin flange accommodating part 1 13 Bobbin Collar Housing 2 14 Rotation Restriction Cut Part 15 Connecting Member 16 Groove

Claims (4)

[Claims] 1. A jig base is provided with bearing accommodating portions at both ends thereof, and a bearing is accommodated in each of the bearing accommodating portions. One of the bearings has a spindle rotating shaft, and the other bearing has a center pressing rotating shaft. The bobbin is held between both shafts by the repulsive force of the paired magnets,
A winding jig with a center retainer with a structure in which the bobbin and the center retainer rotating shaft rotate together. 2. A bearing accommodating portion is provided at both ends of the jig base,
A bearing is accommodated in each bearing accommodating part, one spindle has a spindle rotating shaft, the other bearing has a center pressing rotating shaft penetrated, and the repulsive force of a pair of magnets causes the bobbin to be interposed between the two shafts. At the same time as holding, at least one of the shafts is moved relative to the jig body against the repulsive force of the paired magnets, the bobbin is inserted and fixed between the two shafts, and the spindle rotation shaft, bobbin, and center press A winding jig with a center retainer with a structure in which the shaft rotates integrally. 3. One of the pair of magnets is fixed to a spindle rotating shaft, the other is fixed to a bearing housing portion of the spindle rotating shaft, and the spindle rotating shaft and the jig body slide relative to each other. The winding jig with a center presser according to claim 2, which is configured to be possible. 4. The spindle rotating shaft is directly or indirectly configured to be detachable by pushing or pulling it into or from a fitting hole of a spindle of a winding machine and a transfer pallet for transferring the winding jig. The winding jig with a center presser according to claim 1.