JP3376549B2 - Winding machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a chuck portion for circumferentially sandwiching a collar portion of a core with chuck claws, and each pallet is provided with the pallet for supplying the core, winding a winding, and coating a winding end. The present invention relates to an improvement of a winding machine that drives a plurality of stations such as removal, winding end entanglement, and core removal to circulate and move to each station to assemble coil components.

[0002]

2. Description of the Related Art Conventionally, each of the above-mentioned pallets has a pair of upper and lower, left and right chuck claws which are assembled so as to be able to move close to and apart from each other with a space therebetween so as to sandwich the flange portion of the core from the circumferential direction. There is provided a chuck portion having a pusher arranged at the central position of the chuck claw so as to press the flange portion of the core sandwiched by these chuck claws.

At the winding station of each winding, as shown in FIG. 11, the ends of the winding W inserted through the gap between the chuck claws 1a and 1b are connected to the collar portion f of the core C and the tip of the shaft of the pusher 2 at each winding station. It is supported by being sandwiched by the elastic rubber 2a provided in, and the extended portion of the winding W is guided and guided to the winding shaft portion g of the core C by a tying nozzle (not shown), and the entire chuck portion is rotated by a motor. Thus, the winding W is mounted to be wound around the winding shaft portion g of the core C.

Further, each chuck portion is provided with a cutter blade 3 for cutting the end of the winding W. The cutter blade 3 moves within the space between the chuck claws 1a and 1b,
The winding W is attached so as to cut the end of the winding W with the flange edge of the core C.

When assembling a coil component such as a microinductor with this winding machine, the winding is usually subdivided every quarter turn and wound so as to obtain the accuracy of the L value. There is. However, it is unavoidable that a tolerance of about ± 10% will occur in the subdivision of about a quarter turn. To reduce this tolerance and increase resolution, add 3 more windings.
It is only necessary to subdivide it into about 1/2 turn and wind it, and the tolerance can be suppressed to about ± 5%.

However, since the above-mentioned cutter blade cuts the end of the winding with the brim edge of the core, defective cutting easily occurs depending on the condition of the brim edge. For this reason, it is difficult to keep the L value within a desired narrow tolerance, and a situation in which the flange portion of the core is damaged is likely to occur, which lowers the yield. In addition, since the above-mentioned cutter blades are mounted on the chuck part of each pallet, the chuck part is mechanically complicated, and the overall weight of the chuck part is large. Due to the inertia caused by the rotation, the stop position of the chuck portion is likely to shift.

[0007]

DISCLOSURE OF THE INVENTION According to the present invention, by subdividing a winding, the end of the winding can be cut with high precision in assembling a coil component having a narrow tolerance of characteristics, and the yield can be improved. It is an object to provide an improved winding machine.

[0008]

In the winding machine according to the first aspect of the present invention, the cutter blade is moved from the side where the core is held by the chuck claws to the gap between the chuck claws, and the end of the winding is pushed by the pusher. A cutter mechanism for cutting with the shaft edge is separately and independently arranged at a winding station for winding.

In a winding machine according to a second aspect of the present invention, in addition to the cutter mechanism of the first aspect, the return mechanism of the chuck portion that rotates the chuck portion and stops at a predetermined position and returns the chuck claw to a predetermined direction. Is arranged at the station before the core supply.

[0010]

In the winding machine according to the first aspect of the present invention, the cutter mechanism is located separately from the chuck portion of each pallet, and the cutter mechanism is separately and independently provided at each winding station. Not only the cost can be reduced, but also each chuck part can be mechanically simplified and configured to be lightweight without being affected by inertia. In addition, the cutter mechanism moves the cutter blade from the nipping side of the core by the chuck claws to within the gap of the chuck claws and cuts the end of the winding with the shaft edge of the pusher. There is no possibility of damaging the flange of the core by cutting with high precision with the shaft edge of the pusher. Therefore, it is possible to realize the narrow tolerance of the characteristics due to the subdivision of the winding and to improve the yield.

In the winding machine according to the second aspect of the present invention, since the return mechanism of the chuck section is arranged in the station before the core supply, the core is supplied to the chuck claws of the chuck section and the cutter blade is moved or wound. Wires can be inserted at each station accurately at each station, and even if the chuck part is stopped at the turn position where the core cannot be fed and the windings cannot be inserted as the winding is subdivided, the pallet The winding work can be carried out efficiently by returning the chuck claws to the proper turn position before moving to the core feeding station.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to FIGS. 1-10, FIG. 1 schematically illustrates an entire winding machine in a winding winding station. In the figure, reference numeral 10 is a pallet, and a plurality of pallets 10 are provided so as to circulate and move from the core supply to each station. Reference numerals 20, 21, 2
Reference numeral 2 denotes a feed side and return side transport guide mechanism that circulates and moves each pallet 10, and the pallet 10 is provided at the start and end sides thereof.
A loader and an unloader mechanism (not shown) for moving up and down are installed. Reference numeral 30 denotes a cutter mechanism arranged at the winding winding station, which is assembled and installed in the machine body frame 40 corresponding to the winding winding station.

Each pallet 10 is equipped with a chuck portion 11 for receiving and sandwiching the core. FIG. 2 shows the chuck portion 11 from the front, and the chuck portion 11 has a plurality of chuck claws 110 for holding the flange portion of the core from four directions.
a, 110b, 110c, 110d are provided. These chuck claws 110a, 110b, 110c,
110d is the interval 111a, 111b, 111c, 11
1d is separated from each other so that the toes can be moved toward or away from each other.

FIG. 3 shows the chuck portion 11 in a side cross-section, and the chuck jaws 110a, 110b, 110c, 110d are positioned so that the tips of the chuck jaws are projected outward and the base side is fitted in the diameter of the cylinder portion 12. It is installed by. Further, the portion near the toes is housed and arranged within the diameter of the coupling portion 113. The coupling portion 113 is slidably fitted on the outer periphery of the cylinder portion 112 via a coil spring 114, and is attached to each chuck claw 110a, 110b,
The toes of 110c and 110d are pressed so as to elastically deviate in a direction close to the direction in which the toes are always closed. This chuck part 1
1, a core supply mechanism (not shown) is installed relative to the chuck claw 110a by sliding the coupling 113 against the coil spring 114 when supplying the core from the supply mechanism to the chuck portion 11. ，
110b, 110c, 110d are combined so as to be elastically displaced in the separating direction of the opening direction.

The chuck portion 11 is equipped with a pusher 115 whose entire length is made of a metal material and which is inserted and arranged within the diameter of the cylinder portion 112. The pusher 115 includes chuck claws 110a, 110b, 11
0c, 110d so that the flange of the core clamped by pressing the shaft tip is chuck claws 110a, 110b, 110c, 11
It is arranged toward the central position of 0d. In addition, the pusher 115 is a spring 115 fitted on the axis.
The movement position is regulated by engaging the pin 112a elastically supported by a and protruding from the cylinder portion 112 side with the key groove 115b.

The chuck portion 11 is mounted so as to rotate as a whole by bearing the cylinder portion 112 on the pallet 10 via a bearing 116. A gear 117 is provided on the end side of the cylinder portion 112, and a gear 51 rotated by a pulse motor 50 is movably arranged relative to the gear 117 so as to engage with or disengage from the gear 117. Further, the gear 117 of the chuck portion 11
The rack bar 60 is meshed with each other, so that the chuck portion 11 is normally kept from rotating. The rack bar 60 is attached and fixed to the shaft end side of a guide rod 61 slidably fitted to the pallet 10, and is arranged so as to mesh with the gear 117 of the chuck portion 11 by elastically holding the guide rod 61 with a coil spring 62. Has been done. In order to disengage the rack bar 60 from the gear 117 of the chuck unit 11, a pusher 52 that moves closer to and away from the gear 51 that rotates the chuck unit 11 is provided on the equipment side of the pulse motor 50.

FIG. 4 is a plan view showing a positioning stopping mechanism 70 for the rack bar 60 which is disengaged from the gear 117 of the chuck portion 11. The positioning stop mechanism 70 includes another rack bar 71 fitted and arranged on the pallet 10 and the rack bar 7 of the rack bar 71.
1 is a meshing wheel 72, and as shown in FIG.
A cam plate 75, which is supported on a pedestal 73 by a support shaft 74 and is eccentrically supported coaxially with the support shaft 74, and stoppers 76, 77 for engaging and locking the cam plate 75 at a predetermined position.
And is configured. In the positioning stop mechanism 70 of the rack bar 60, the equipment side of the pulse motor 50 that rotates the chuck portion 11 moves forward together with the pusher 52,
As the rack bar 60 is pushed and moved, the pallet 1
The rack bar 71 fitted and arranged at 0 is pressed by the rack bar 60, and the cam plate 75 is rotated via the pulley 72 so that the cam plate 76 moves until it comes into contact with the stopper 77. When the rack bar 71 is released from the pressure applied by the rack bar 60, the coil spring 78 provided between the pallet 10 and the rack bar 71 is contracted to cause the cam plate 75 to contact the stopper 76. It operates to retract the rack bar 71 until it contacts.

In addition to the above-mentioned mechanism parts, the pallet 10 is equipped with a winding tensioning mechanism 80 shown in FIG. As shown in FIG. 2, the tensioning mechanism 80 for the winding is provided with chuck claws 110a, 110b, 11
0c, 110d intervals 111a, 111b, 111c,
Block body 82 having V groove 81 on the extension line of 111d
It consists of The block body 82 is supported by an operation bar 83 slidably fitted on the pallet 10 so as to move forward and backward. Normally, a coil spring 84 provided on the axis of the operation bar 83 biases the elastic force in the backward direction. Is ranked. When the operation bar 83 is pressed against the coil spring 84 when necessary, the block body 82 is moved forward together with the guide bar 85 by the operation bar 83, and the chuck claws 110a and 110 are moved.
b, 110c, or 110d, one of the intervals 111a, 1
11b, 111c, 111d through the winding is pulled to V
It is equipped to apply tension to the winding by receiving it in the groove 81. It should be noted that a winding (not shown) is provided around the chuck portion 11 by winding it around a winding, and the winding is drawn out from a winding entanglement nozzle that is movable in required directions up and down and left and right. A winding delivery mechanism (not shown) is provided to allow the winding to be applied to the core.

For a winding machine equipped with each of these mechanical parts,
The cutter mechanism 30 has a chuck claw 110 as shown in FIG.
The chuck jaws 110a, 110b, 110c, 110 from the side where the core is sandwiched by a, 110b, 110c, 110d.
any of the intervals 111a, 111b, 111c, 1 of d
It is arranged so as to move the cutter blade 31 toward 11d. The cutter blade 31 is a cutter holder 32
It is mounted so as to move forward and backward toward the chuck portion 11 by connecting the cutter holder 32 to the rod tip of the drive cylinder 33. The drive cylinder 33 is installed on the upper side of the machine body frame 40, and the cutter holder 32 is connected to a guide bar 34 slidably inserted in the machine body frame 40 so that the cutter blade 31 can be linearly moved. There is.

In this cutter mechanism 30, as shown in FIG. 6, the starting end of the winding W is separated by the gaps 111a, 1a between the chuck portions 11.
From 11c, chuck claws 110a, 110b, 110c,
Insert it through the collar part f of the drum core C sandwiched by 110d,
It is used to press and cut it with the shaft tip of the pusher 115. At the time of this cutting, the cutter blade 31 moves from the holding side of the drum core C into the space 111a to cut the starting end of the winding W with the shaft edge of the pusher 115 formed of a metal material. Therefore, the disconnection of the winding W does not occur and the flange f of the drum core C is not damaged. Cutter blade 31 after cutting the winding end
The winding machine drives the winding wire W to be wound around the winding shaft portion g of the drum core C by the guiding guide by the tangling nozzle described above.

In this winding machine, as shown in FIG. 7, a plurality of pallets 10 are used to wind windings from the core supply station, to remove coatings by heating necessary for welding and fixing the ends of the windings, The winding ends are entangled and the cores are taken out through the respective stations for circulation. During the circulation movement, the return mechanism 9 of the chuck portion 11 is provided at the station before the pallet 10 is moved to the core supply station.
0 is set.

8 and 9 show the return mechanism 90 of the chuck portion 11, which is arranged so that the positioning protrusion 118 projectingly mounted on the upper side of the chuck portion 11 abuts and locks with the positioning bar 91 on the return mechanism side. It is set up. A pusher 92 is supported on the return mechanism 90 so as to move forward and backward from a machine body frame 93 by a slide bar 94, and the slide bar 94 is moved by a drive cylinder 95, so that the chuck portion 11 is non-rotatably locked. A pushing portion of the rack bar 60 for detaching the rack bar 60 from the pulley 117 of the chuck portion 11 is provided. In addition, the chuck portion 11 is moved so as to move with the forward movement and the backward movement.
The return mechanism 90 of FIG.
Is engaged with the pulley 117 of the chuck portion 11 to rotate the pulse motor 97 at an arbitrary angle.

Since the return mechanism 90 of the chuck portion 11 is provided, even if the turn position of the chuck portion 11 is not stopped at the regular position due to the subdivision of the winding as shown in FIG. 117, 96 are engaged with each other to rotate the chuck portion 11, and the protrusion 118 of the chuck portion 11 is rotated.
Abutting the positioning bar 92 of the return mechanism 90,
The chuck portion 11 can be returned to the normal position as shown in FIG. 10b. After that, since the pallet 10 is sequentially moved to the core supply station and the winding winding station, it is possible to reliably supply the core, move the cutter blade, or insert the winding end.

[0024]

As described above, according to the winding machine of the present invention, the end of the winding can be accurately cut even when the winding is subdivided, so that a coil component such as a micro inductor can be assembled. The characteristics can be narrowed, and the core can be supplied, the cutter blade can be moved, and the winding can be inserted and wound, so that the efficiency of winding work and the yield can be improved. You can

[Brief description of drawings]

FIG. 1 is an explanatory view schematically showing each mechanical unit in a winding station of a winding machine according to the present invention.

FIG. 2 is an explanatory view showing from the front each mechanism portion including a chuck portion mounted on a pallet of the winding machine.

FIG. 3 is an explanatory view showing, in a side cross-section, each mechanical unit including a chuck unit mounted on the pallet.

FIG. 4 is an explanatory view showing a plan view of a rotation stopping mechanism section of a chuck section mounted on the pallet.

FIG. 5 is an explanatory view showing a tensioning mechanism portion of windings mounted on the pallet from a side surface.

FIG. 6 is an explanatory view showing each operation of the cutter mechanism and the chuck portion of the winding machine according to the present invention.

FIG. 7 is an explanatory view showing a flow chart of each station in which the pallet of the winding machine according to the present invention moves cyclically.

FIG. 8 is an explanatory view showing a chuck portion and a return mechanism of the winding machine according to the present invention in a plan view.

FIG. 9 is an explanatory view showing a return mechanism of the chuck section on a side surface.

FIG. 10a is an explanatory diagram of a chuck portion that requires a turn position return in the return mechanism.

[Id. 10b] FIG. 10b is an explanatory diagram of the chuck portion that has been returned to the turn position by the return mechanism.

FIG. 11 is an explanatory diagram showing each operation of a cutter blade and a chuck portion of a winding machine according to a conventional example.

[Explanation of symbols]

10 Pallet 11 Chuck part 110a, 110b, 110c, 110d Chuck claws 111a, 111b, 111c, 111d Chuck claw interval 115 Pusher 30 Cutter mechanism 31 Cutter blade 90 Cutter blade return mechanism C Core f Core flange g Core winding Shaft W winding

Claims (2)

(57) [Claims] 1. A plurality of pallets for circulating movement in each station such as core supply, winding winding, winding end film removal, winding end entanglement, core removal, etc. are provided, and each pallet is provided. Is a plurality of chuck claws that are closely spaced from each other such that the flange portion of the core is sandwiched between the tongues in the circumferential direction, and are movable together, and the chucks are arranged at the central position of the chuck claws. It is equipped with a chuck part that has a pusher that presses the flange part of the core that is clamped by the claw, and at the winding winding station, the end is inserted from the chuck claw interval onto the flange part of the core and is pushed and supported by the tip of the pusher shaft. In a winding machine that drives the winding to wind around the winding shaft of the core as the chuck rotates, move the cutter blade from the side where the core is held by the chuck claws to within the gap between the chuck claws. Push the terminal of A winding machine characterized in that a cutter mechanism for cutting with a shaft end edge of a wire is separately and independently arranged at a winding station. 2. The return mechanism of the chuck part, which rotates the chuck part and stops at a predetermined position and returns the chuck claws to a predetermined direction, is arranged at a station before core supply. Winding machine.