JP2003217957A - Binding apparatus for iron core lateral winding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain uniform product characteristics by establishing uniform close contact degree of laminated thin steel plate, forming an iron core in the iron core lateral winding binding apparatus. <P>SOLUTION: Since a coil spring 26 is coupled between a tape remainder check arm 22 and a brake arm 23, the tape remainder check arm 22 turns to the side of brake arm 23 around a pin 22a with reduction in tape remainder, and thereby a tensile force of the coil spring 26 is also reduced to reduce the energizing force of a brake pad 25 directed toward a V-shaped groove ring 20. As a result, the change in feeding tensile force of a bind tape 17 obtained by dividing a brake torque with the radius of roll 18 of a bind tape 17 is reduced. Accordingly, even if the tape remainder is reduced, the tensile force for feeding the bind tape 17 from a bobbin 6 can be maintained. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iron core lateral winding binding device for binding and fixing a binding tape around an iron core having a thin plate laminated structure in the production of a transformer iron core.

[0002]

2. Description of the Related Art In manufacturing an iron core of a transformer, a thin silicon steel plate (hereinafter referred to as a thin steel plate) having a thickness of 0.25 to 0.35 mm is usually cut into a predetermined size, and a horizontal loading portion of an iron core erection device is cut. After forming the iron core by stacking on, the binding tape made of glass is wound and fixed by binding. Then, the horizontal loading section of the iron core erection device is erected, and the conductor coil is inserted into the bundled and fixed iron core.

[0003] As a conventional technique for winding and binding and binding a bind tape in a horizontal state of an iron core having laminated thin steel plates, there is one described in Japanese Patent Laid-Open No. 55-78516. This rotatably supports a C-shaped broken chain gear that can insert an iron core on a frame, and drives the broken chain gear by a drive chain, and a bind tape reel on the broken chain gear. A tension roller for applying tension to the bind tape pulled out from this reel is provided.
In addition, the iron core laminated with thin steel plates is supported by a plurality of pedestals,
A hydraulic cylinder is provided in each pedestal, and both ends of the wire hung from above on the iron core are pulled down by the hydraulic cylinder, and an iron core tightening device for tightening and fixing the laminated thin steel plates of the iron core is provided.

[0004]

However, the above-mentioned conventional techniques have the following problems.

In order to properly wind the bind tape around the iron core, a predetermined tape tension is required. If the tape tension changes, the degree of adhesion between the thin steel plates will vary, and the electromagnetic characteristics of the iron core will differ from those required. Further, generally, after binding and fixing the iron core with the binding tape, the whole iron core is erected and the conductor coil is inserted. However, if the tape tension is weak, there arises a problem that the thin steel plate is displaced when the iron core is erected.

In the prior art disclosed in Japanese Patent Laid-Open No. 55-78516, a tension roller is used to apply a constant tension to the bind tape. However, the tension control using only the tension roller cannot prevent the tension variation on the reel side where the bind tape is fed out, and as a result, the tension of the bind tape wound around the iron core also varies.

That is, when the winding of the bind tape progresses and the bind tape on the reel decreases, the roll diameter of the bind tape decreases accordingly. Therefore, in the case of unwinding the brake torque generated on the reel without adjusting the roll torque, As the diameter decreases, the tension of the bind tape unreeled from the reel increases, and this fluctuation in tension affects the bind tape wound around the iron core.
The tension of the bind tape wound around the iron core also fluctuates.

Further, the binding tape is wound around the iron core by rotating the C-shaped broken chain gear around the iron core, but if the axis of the broken chain gear and the axis of the iron core deviate from each other, the deviation will occur. Also causes the tension of the bind tape wrapped around the iron core to fluctuate.

As described above, in the prior art disclosed in Japanese Patent Laid-Open No. 55-78516, the tension of the bind tape wound around the iron core fluctuates, so that the degree of adhesion of the laminated thin steel plates constituting the iron core also fluctuates. There is a problem in that quality characteristics (electromagnetic characteristics) vary.

An object of the present invention is to provide an iron core horizontal winding binding device capable of making the degree of adhesion of the laminated thin steel plates constituting the iron core uniform and making the product characteristics uniform.

[0011]

(1) In order to achieve the above object, the present invention relates to a horizontal iron core in which a binding tape is wound around an iron core formed by laminating a plurality of thin steel plates on a horizontal loading portion and is bound and fixed. In the winding binding device, a gate-shaped frame installed to surround the upper portion of the iron core in the horizontal loading unit, and provided in the gate-shaped frame so as to rotate around the iron core. By wiring a C-shaped swivel ring having a notch, a bobbin of the bind tape provided on the C-shaped swivel ring, and a bind tape provided on the C-shaped swivel ring and fed from the bobbin, A brake roller that applies a tension to the bind tape wound around the iron core, and a rotation driving unit that applies a rotational force to the C-shaped swivel ring. The binding tape is unwound from the bobbin by being rotated, and the C-shaped swivel ring is driven to rotate around the iron core while applying tension to the brake roller, and the binding tape is wound from the bobbin to the rotation driving means. And a feeding tension holding mechanism that applies a braking force that changes according to the decrease of the bind tape on the bobbin to the bobbin to suppress the tension change of the feeding tape.

In this way, the feeding tension holding mechanism is provided,
By applying a braking force that changes according to the decrease of the bind tape on the bobbin to the bobbin to suppress the tension change of the feeding tape, the tension fluctuation of the bind tape wound around the iron core while giving the tension by the brake roller is reduced. It is possible to make the degree of adhesion of the laminated thin steel plates constituting the above-mentioned (1) uniform and to make the product characteristics uniform.

(2) In the above item (1), preferably,
The feeding tension holding mechanism includes a brake arm provided with a brake pad engageable with the bobbin, and a spring having one end connected to the brake arm so as to urge the brake pad in a pressing direction of the bobbin. Connected to the other end of the spring and attached so as to rotate according to the remaining amount of the bind tape on the bobbin, and reduces the biasing force of the spring as the remaining amount of the bind tape decreases, And a tape remaining amount check arm for reducing the braking force of.

By decreasing the biasing force of the spring and the braking force of the brake pad as the remaining amount of the binding tape decreases in this way, the braking torque applied to the bobbin also decreases, and as a result, the braking torque of the binding tape is reduced. The change in the feeding tension of the bind tape obtained by dividing by the roll diameter becomes small.

(3) Further, in the above (1), the C
The binding tape that is provided on the die swivel ring and is wound around the iron core via the plurality of brake rollers is wired, so that the tension of the bind tape generated due to the deviation between the center of the iron core and the center of the C swivel ring. Further, a tension fluctuation preventing mechanism that absorbs fluctuations in

By providing the tension fluctuation prevention mechanism as described above, even if the center of the iron core and the center of the C-shaped turning ring are deviated from each other, the tension fluctuation of the bind tape wound around the iron core becomes small, and the laminated layers forming the iron core are reduced. The degree of adhesion of thin steel plates can be made uniform, and the product characteristics can be made uniform.

(4) Further, in the above (1), a pressing mechanism provided on the upper portion of the gate-shaped frame for applying a pressing force to the iron core, and a lower portion of the gate-shaped frame provided on the horizontal loading portion. Further comprising an iron core pressing mechanism that has a hooking portion capable of engaging with the iron core, applies a tightening force to the iron core by receiving a reaction force of the pressing mechanism at the hooking portion, and tightly fixes the laminated thin steel plates of the iron core. And

By thus providing the iron core pressing mechanism and closely fixing the laminated thin steel plates of the iron core, the bind tape can be wound while the laminated thin steel plates are evenly adhered to each other, and further the laminated thin steel plates constituting the iron core. The degree of adhesion can be made uniform, and the product characteristics can be made uniform.

(5) In order to achieve the above object,
The present invention relates to an iron core horizontal winding binding device for winding and binding and binding a binding tape around an iron core formed by laminating a plurality of thin steel plates on a horizontal loading portion, the horizontal loading portion being installed so as to surround an upper portion of the iron core. And a C-type swivel ring provided on the gate-type frame so as to rotate around the iron core and having a notch in a part in the circumferential direction, and the C-type swivel ring provided on the C-type swivel ring. The binding tape bobbin and the C-shaped swivel ring are provided.
A brake roller that applies a tension to the bind tape wound around the iron core and a rotation driving unit that applies a rotational force to the C-shaped turning ring by wiring the bind tape fed out from the bobbin. The binding tape is fed from the bobbin by rotating a ring, and the binding tape is wound around the iron core while tension is applied by the brake roller.
The rotation driving means of the die swivel ring and the bind tape that is provided on the C swivel ring and is wound around the iron core via the plurality of brake rollers are wired to thereby connect the center of the iron core and the C swivel ring. A tension fluctuation preventing mechanism that absorbs fluctuations in the tension of the bind tape caused by the deviation of the center.

As a result, as described in (3) above, even when the center of the iron core and the center of the C-shaped swivel ring are deviated from each other, fluctuations in the tension of the bind tape wound around the iron core are minimized and the iron core is formed. The degree of adhesion of the laminated thin steel sheets can be made uniform, and the product characteristics can be made uniform.

(6) In above (5), preferably,
The tension fluctuation preventing mechanism is provided with a guide rail fixed to the C-shaped swivel ring, a slide table slidably installed on the guide rail, and one end side of the slide table, and the bind is wound around the iron core. A free roller for suspending the tape and a constant load spring mechanism provided on the other end side of the slide table for applying a traction force to the slide table are provided.

Thus, the pulling force of the constant load spring mechanism can be constantly applied to the bind tape wound around the iron core via the plurality of brake rollers, and the bind tape generated by the deviation between the center of the iron core and the center of the C-shaped turning ring. It is possible to absorb the fluctuation of tension.

(7) Further, in order to achieve the above object,
The present invention relates to an iron core horizontal winding binding device for winding and binding and binding a binding tape around an iron core formed by laminating a plurality of thin steel plates on a horizontal loading portion, the horizontal loading portion being installed so as to surround an upper portion of the iron core. And a C-type swivel ring provided on the gate-type frame so as to rotate around the iron core and having a notch in a part in the circumferential direction, and the C-type swivel ring provided on the C-type swivel ring. The binding tape bobbin and the C-shaped swivel ring are provided.
A brake roller that applies a tension to the bind tape wound around the iron core by wiring a bind tape that is unwound from the bobbin, and a rotation driving unit that applies a rotational force to the C-shaped swivel ring. Is provided on the gate-shaped frame, and a rotation driving means for the C-shaped turning ring that winds the binding tape from the bobbin by rotating the bobbin, and winds the binding tape around the iron core while applying tension by the brake roller. It has a pressing mechanism for applying a pressing force to the iron core, and a hooking part provided in the lower part of the gate frame and engageable with the horizontal loading part, and the hooking part receives the reaction force of the pressing mechanism. By applying a tightening force to the iron core, the iron core pusher for tightly fixing the laminated thin steel plates constituting the iron core Only it is assumed that a mechanism.

As a result, as described in (4) above, the binding tape can be wound while the laminated thin steel sheets are evenly adhered to each other, and the adhesion degree of the laminated thin steel sheets constituting the iron core is made uniform, and the product characteristics are improved. Can be uniform.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of an iron core lateral winding device according to an embodiment of the present invention. In FIG. 1, an iron core 1 formed by stacking a plurality of thin silicon steel plates on a pedestal 103 provided in a horizontal loading portion 105 of an iron core erection device 104.
No. 01 is formed, and the horizontal iron core winding binding device 1 according to the present embodiment, in which the binding tape 17 is wound around the iron core 101 and bound and fixed, is installed on the horizontal stacking portion 105.

The iron core horizontal winding device 1 includes a horizontal loading unit 1.
05, the gate type frame 2 installed so as to surround the upper portion of the iron core 101, and the iron core 101
A C-shaped swivel ring 4 supported so as to rotate around the circumference of the C-shaped swivel ring 4 and having a notch 4a in a part in the circumferential direction; Provided on the mold swivel ring 4 and bobbin 6
By binding the bind tape 17 fed out from the two, the two brake rollers 5 that give a predetermined tension to the bind tape 17 wound around the iron core 101, and the rotation drive mechanism 8 that gives a rotational force to the C-shaped turning ring 4. Equipped with
The bind tape 17 is fed from the bobbin 6 by rotating the C-shaped turning ring 4, and the bind tape 17 is applied to the iron core 10 while applying a predetermined tension by the brake roller 5.
Wrap around 1.

The rotary drive mechanism 8 is wired around a sprocket 10 formed on the outer periphery of the C-shaped swivel ring 4 and a free sprocket 11 provided on the gate-shaped frame 2, and is stretched over the entire circumference of the gate-shaped frame 2. An endless chain 12 that meshes with a sprocket 10 of a C-shaped swivel ring 4, and a hydraulic motor 1 that applies a driving force and a braking force to the chain 12.
3 and the electromagnetic brake 12. At the lower part of the gate-shaped frame 2, there is provided a transporting device 15 that enables the iron core horizontal winding binding device 1 to move on the horizontal stacking portion 105, and the end of the binding tape 17 is held on the inner peripheral side of the gate-shaped frame 2. A tape fixing jig 16 is provided for this purpose.

Further, the iron core horizontal winding binding device 1 provides the bobbin 6 with a braking force which changes in accordance with the decrease of the binding tape 17 on the bobbin 6 when the binding tape 17 is fed from the bobbin 6 by the rotary drive mechanism 8. A tension holding mechanism 7 for suppressing a change in tension of the feeding tape and a C-shaped turning ring 4 are provided, and an iron core 10 is provided via a brake roller 5.
The tension variation prevention mechanism 8 absorbs the variation in the tension of the bind tape 17 caused by the deviation of the axis Ot of the iron core 101 and the axis Or of the C-shaped swivel ring 4 by wiring the bind tape 17 wound around the wire 1. And a pressing mechanism 9 provided on the upper portion of the gate type frame 2 for applying a pressing force to the iron core 101, and a convex portion 103a provided on the lower portion of the gate type frame 2 and formed on the lower portion of the pedestal 103. And a possible hooking portion 14. Pressing mechanism 9
The hooking portion 14 and the hooking portion 14 press the pressing mechanism 9
The iron core 101 is tightened by receiving the reaction force of
An iron core pressing mechanism for closely fixing the laminated thin steel plates of the iron core 101 is configured.

2 and 3 show details of the bobbin 6 and the tension holding mechanism 7.

The bobbin 6 has a reel 19 for accommodating the bind tape roll 18, and the reel 19 is rotatably supported by a shaft 21 provided on the C-shaped turning ring 4 via a bearing 21a.

The tension holding mechanism 7 can be engaged with the V-shaped groove 20a of the V-shaped groove ring 20 and the V-shaped groove ring 20 which is coaxially coupled to the reel 19 and has a V-shaped groove 20a formed on the outer peripheral side surface. Equipped with a brake pad 25, C by pin 23a
The brake arm 23 pivotally supported by the mold swivel ring 4, a coil spring 26 having one end connected to the brake arm 23 so as to urge the brake pad 25 in the pressing direction of the V-shaped groove ring 20, and another coil spring 26 A roller 24 that is connected to the end side and is pivotally supported by the C-shaped swivel ring 4 by a pin 22a so as to rotate according to the remaining amount of the bind tape on the bobbin 6 and has a tip end that is in contact with the tape roll 18. The tape remaining amount check arm 22 reduces the biasing force of the coil spring 26 and the braking force of the brake pad 25 as the remaining amount of the bind tape of the tape roll 18 decreases.

By reducing the biasing force of the coil spring 26 and the braking force of the brake pad 25 as the binding tape remaining amount decreases, the braking torque applied to the bobbin 6 also decreases, and as a result, the braking torque is reduced. The payout tension of the bind tape 17 obtained by dividing the bind tape 17 by the radius of the roll 18 can be kept substantially constant. Further, the coil spring 26 can select a spring constant in accordance with a required predetermined tape tension, and accordingly, setting for holding the feeding tension can be easily performed.

When a constant brake torque is constantly applied due to the internal frictional force in the bobbin 6, the bobbin 6 itself increases the feeding tension as the remaining tape amount decreases. However, even in this case, the brake pad 2 can be adjusted by adjusting the spring constant of the coil spring 26.
By setting the brake torque given by No. 5 so as to decrease as the remaining tape amount decreases, the respective changes in the feeding tension and the brake torque are canceled out, and as a result the combined tension applied to the bind tape 17 is made substantially constant. Can be kept.

FIG. 5 shows details of the tension fluctuation preventing mechanism 8.
The tension fluctuation prevention mechanism 8 is provided with a guide rail 31 fixed to the C-shaped swivel ring 4, a slide table 32 slidably installed on the guide rail 31, and one end side of the slide table 32. A tape free roller 33 for suspending the bind tape 17 wound around the wire, a wire free roller 34 provided on the other end side of the slide table 32, and a fixing pin 3 at one end.
The constant load spring mechanism 50 applies a substantially constant traction force to the slide table 32 via the wire 35 that is attached to the C-shaped turning ring 4 by 0 and is wound around the wire free roller 34.

The constant load spring mechanism 50 is composed of the C-shaped turning ring 4
Seven helical springs 27 arranged in parallel in the circumferential direction on an arc-shaped support 51 attached to the
7 and a connecting stay 28 connected to each free end of the connecting member 7, and one end of the connecting stay 28 is connected to a wire 35 by a pin 29. Reference numerals 52 and 53 are stoppers for preventing the slide table 32 from coming out.

With this configuration, the brake roller 5
Bind tape 1 wrapped around the iron core 101 via
It is possible to always apply a substantially constant traction force, which is slightly smaller than the predetermined tape tension from the constant load spring mechanism 50, to 7. Therefore, when the tape tension increases or decreases, the slide table 32 moves until the pulling force from the constant load spring mechanism 50 and the tape tension are balanced, and thus the bind tape 17 is moved.
Loosening and excess tape tension are removed. As a result, the axis Ot of the iron core 101 and the axis O of the C-shaped swivel ring 4 are
It is possible to absorb the tension fluctuation of the bind tape 17 caused by the deviation of r.

Returning to FIG. 1, the pressing mechanism 9 includes a bracket 36 installed on the upper portion of the gate-shaped frame 2, a guide 37 fixed vertically to the bracket 36, and a rod 37a sliding on the guide 37. It has an abutting portion 38 which is attached so as to be able to move up and down with respect to the C-shaped swivel ring 4, and a hydraulic cylinder 39 which is attached to the bracket 36 and applies a pressing force to the abutting portion 38. With such a configuration, the pressing mechanism 9 is capable of urging and lowering the contact portion 38 downward by extending the hydraulic cylinder 39.

As described above, the pressing mechanism 9 and the hook portion 14 receive a reaction force of the pressing mechanism 9 at the hook portion 14 to apply a tightening force to the iron core 101, and the iron core 10
An iron core pressing mechanism for tightly fixing the laminated thin steel sheets of No. 1 is configured, and by this, the bind tape 17 can be wound while the laminated thin steel sheets are uniformly adhered.

When performing the winding operation by the iron core horizontal winding binding device 1 of the present embodiment configured as described above, first, in order to firmly fix the iron core 101 of laminated thin steel plates to the pedestal 103, the hydraulic pressure of the pressing mechanism 9 is to be fixed. The cylinder 39 is extended to lower the contact portion 38 and contact the upper portion of the iron core 101 to apply a biasing force. At this time, as shown in the drawing, the hooking portion 14 is brought into a state of being engaged with the convex portion 103e on the lower portion of the pedestal 103. As a result, the hook portion 14 receives an upward reaction force against the biasing operation of the hydraulic cylinder 39, and it is possible to prevent the binding device 1 as a whole from rising and to apply a tightening force to the iron core 101.

At the start of the winding operation, the tip of the bind tape 17 is fixed to the tape fixing jig 16 installed on the gate-shaped frame 2, and then the hydraulic motor 11 is operated to swivel the C-shaped swivel ring 4 quickly. . As a result, the bind tape 17 is unwound from the bobbin 6 and given a predetermined tape tension, so that the bind tape 17 is reliably wound around the iron core 101.

The tape tension during the winding operation is the sum of the tension applied from the bobbin 6 and the tension applied from the plurality of brake rollers 5, but the bobbin functions due to the function of the tension holding mechanism 7 described above. Since the feeding tension from 6 is kept almost constant, the iron core 101
The tension of the tape wound around can also be constant.

In most cases when the binding device 1 is placed, the axial center Ot of the iron core 101 and the axial center Or of the C-shaped swivel ring 4 are displaced from each other. However, since the tension fluctuation of the binding tape 17 is absorbed by the function of the tension fluctuation prevention mechanism 9 described above, the tape tension to be wound around the iron core 101 is also increased. Can be constant.

At the end of the winding work, the hydraulic motor 11
Immediately after stopping the driving of the C type, the electromagnetic brake 12 is momentarily braked to suddenly brake the C-type turning ring 4.
As a result, the tension of the bind tape 17 can be prevented from decreasing when it is stopped, and the binding tape 17 can be prevented from being loosened. After that, the binding tape 17 is cut and post-processed to complete the winding operation at one binding position. To move to the next binding position, the contact portion 38 is raised to move the iron core 1
The fastening of No. 01 is released, and it is moved by the roller of the conveying device 15 installed below the gate type frame 2.

Here, the advantage of using the hydraulic motor 11 as a drive source of the C-shaped turning ring 4 will be described. First, a large output is required to drive the C-shaped swivel ring 4, and therefore, when an electric motor is used, there is a problem that the external dimensions of the motor become large. A speed reducer is required in order to avoid such an increase in the external size of the motor or to obtain a predetermined driving force and ring rotation speed. As described above, when the electric motor is used, it is necessary to install the speed reducer, which hinders space saving. However, since the hydraulic motor 11 is driven by utilizing the energy of the hydraulic pressure generated outside, the product size can be reduced accordingly, and the space can be saved.

Regarding the processing when an excessive load is applied during rotational driving, in the case of an electric motor, an overload protection device such as a thermal relay that performs switching by a thermal reaction of bimetal is installed to provide a protection function. Is required to restart the electric motor after temporarily stopping the electric motor, a return operation is required. However, in the case of the hydraulic motor 11, it is not necessary to stop the device and perform the subsequent returning operation by mounting the relief valve on the hydraulic unit.

Next, the manufacturing process of the iron core 101 using the iron core horizontal winding device 1 according to the present embodiment will be schematically described. First, as shown in FIG. 5, the pedestal 103 is installed on the horizontal loading portion 105 of the iron core erection device 104, and a thin silicon steel plate is laminated thereon to form the iron core member 100 having a plurality of iron cores 101. . The binding device 1 of the present embodiment is lifted and moved by a transporting means such as a crane so that the cutout 4a of the C-shaped swivel ring 4 and the lower opening 2a of the gate-shaped frame 2 are aligned with each other. The iron core 101 is lowered from the upper side so as to be inserted into the notch 4a, and the iron core 1 is attached to the inner peripheral side of the binding device 1.
01 is mounted so as to be loosely fitted.

Next, the binding device 1 is moved to and positioned at the binding positions set on the iron core 101 at predetermined intervals. At this time, the rollers of the transport device 15 provided below the gate-shaped frame 2 can be easily moved manually.

At the predetermined binding position, the binding device 1 first urges the iron core 101 by the pressing mechanism 9 to fix the laminated thin steel plates in close contact with each other, and then the predetermined binding force of the glass binding tape 17 a plurality of times. The core 101 of the laminated thin steel plates is wound around and integrally fixed.

The movement between the binding positions of one iron core 101 can be easily performed by the conveying device 15 provided with the rollers, and after the winding is completed at all the binding positions of one iron core 101, the crane or the like can be used. The transporting means moves the iron core 101 to another iron core 101 which has not been wound yet, and similarly winds it.

When the winding of all the iron cores 101 is completed, the whole of the iron core members 100 of the laminated thin steel plates are integrally bound and fixed, so that it is possible to surely stand up.
FIG. 6 is a side view of the iron core erection device 104 on which the iron core member 100 after binding is placed before and after the erection, and as shown in the drawing, the pin 1 provided at the tip of the iron core erection device 104 is shown.
Use 06 to stand up by crane work. The iron core 101 thus erected is lifted and moved to the next transformer assembly process.

In the present embodiment configured as described above, a braking force that changes according to the decrease in the bind tape 17 on the bobbin 6 is applied to the bobbin 6 to suppress the change in the feeding tension of the bind tape 17. The tension of the bind tape 17 wound around the iron core 101 can be made substantially constant while the tension is applied by the brake roller 5, and the degree of adhesion of the laminated thin steel plates forming the iron core 101 can be made uniform and the product characteristics can be made uniform. You can

Further, the tension fluctuation prevention mechanism 8 can appropriately absorb the fluctuation of the tension even if the tape tension fluctuates instantaneously during the winding operation. Therefore,
Even if the axial center Ot of the iron core 101 and the axial center Or of the C-shaped swivel ring 4 are deviated from each other, it is possible to suppress the fluctuation of the tape tension and perform reliable winding. Further, even when the cross-sectional shape of the iron core 101 around which the tape 17 is wound is not a perfect circular shape, the tape tension fluctuates periodically, but the tension fluctuation prevention mechanism 8 can also suppress such fluctuation. For example, the present invention can be applied to the winding work of the substantially semicircular iron cores 102 located at both ends of the iron core member 100 shown in FIG.

Further, since the upper portion of the iron core 101 is pressed by the pressing mechanism 9 and the portal frame 2 can receive the reaction force of the urging force from the pressing mechanism 9 via the hook portion 14, the laminated thin steel plate The iron core 101 can be reliably pressed and fixed to the pedestal 103. Further, the pressing and fixing can be performed only by operating the hydraulic cylinder 39 of the pressing mechanism 9 in a state where the binding device 1 is properly arranged with respect to the iron core 101 and the pedestal 103. Therefore, since the iron core pressing mechanism has good operability as described above, the laminated thin steel plates can be easily adhered and fixed even when the winding work is repeated.

As described above, according to the iron core horizontal winding binding device 1 of the present embodiment, the degree of adhesion of the laminated thin steel plates constituting the iron core 101 can be made uniform and the product characteristics can be made uniform.

[0056]

According to the present invention, the bobbin is provided with a braking force that changes in accordance with the decrease of the bind tape on the bobbin, and the tension change of the feeding tape is suppressed, whereby the brake roller is wound around the iron core while applying the tension. It is possible to reduce fluctuations in the tension of the bind tape to be used, to make the degree of adhesion of the laminated thin steel plates constituting the iron core uniform, and to make the product characteristics uniform.

Further, according to the present invention, even when the center of the iron core and the center of the C-shaped swivel ring are deviated from each other, the fluctuation of the tension of the bind tape wound around the iron core becomes small, and the adhesion degree of the laminated thin steel plates constituting the iron core becomes small. Can be made uniform and the product characteristics can be made uniform.

Further, according to the present invention, the binding tape can be wound while the laminated thin steel sheets are evenly adhered to each other, and the adhesion degree of the laminated thin steel sheets forming the iron core is further uniformed and the product characteristics are made uniform. You can

[Brief description of drawings]

FIG. 1 is a front view of an iron core horizontal winding device according to an embodiment of the present invention.

FIG. 2 is an enlarged front view of a bobbin and a tension holding mechanism.

FIG. 3 is an enlarged side sectional view of a bobbin and a tension holding mechanism.

FIG. 4 is an enlarged front view of a tension fluctuation preventing mechanism provided on a C-shaped ring.

FIG. 5 is an overall perspective view of a pedestal, an iron core member, and an iron core horizontal winding binding device installed on the iron core erection device.

FIG. 6 is a side view of the iron core erection device on which the iron core member after binding is placed before and after the iron core erection device.

[Explanation of symbols]

1 Iron core horizontal winding device 2 portal frame 2a downward opening 4 C type swivel ring 4a cutout 5 brake rollers 6 bobbins 7 Tension retention mechanism 8 Tension fluctuation prevention mechanism 9 Pressing mechanism 10 endless chain 11 Hydraulic motor 12 Electromagnetic brake 14 Hook 15 Conveyor 16 Tape fixing jig 17 bind tape 18 Bind Tape Roll 19 reels 20 V-shaped groove ring 20a V-shaped groove 22 Tape remaining amount check arm 23 Brake arm 25 brake pads 26 coil spring 27 spiral spring 28 Connected stay 31 Guide rail 32 slide table 33 Free roller for tape 34 Free roller for wire 35 wire 38 Contact part 39 hydraulic cylinder 50 constant force spring mechanism 100 iron core material 101 iron core 102 semi-circular iron core 103 pedestal 104 Iron core standing device 105 Horizontal loading section Ot iron core axis Or C-type swivel ring axis

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kenichi Ebata             1-1-1 Kokubuncho, Hitachi-shi, Ibaraki Stock             Hitachi, Ltd. Electric Systems Division (72) Inventor Masafumi Hatta             1-1-1 Kokubuncho, Hitachi-shi, Ibaraki Stock             Hitachi, Ltd. Electric Systems Division (72) Inventor Shinji Fukuda             1-1-1 Kokubuncho, Hitachi-shi, Ibaraki Stock             Hitachi, Ltd. Electric Systems Division (72) Inventor Motoo Oga             1-1-1 Kokubuncho, Hitachi-shi, Ibaraki Stock             Hitachi, Ltd. Electric Systems Division (72) Inventor Naohiro Tsukao             Hitachi 9-2, Aise-cho, Hitachi City, Ibaraki Prefecture             Facility Engineer Lining Co., Ltd. F-term (reference) 5E062 AC01 AC07

Claims (7)

[Claims] 1. An iron core horizontal winding binding device in which a binding tape is wound around an iron core formed by laminating a plurality of thin steel plates in a horizontal loading portion to bind and fix the iron core so that the horizontal loading portion surrounds an upper portion of the iron core. The gate-shaped frame to be installed, the C-shaped swivel ring provided on the gate-shaped frame so as to rotate around the iron core, and having a notch in a part in the circumferential direction, and the C-shaped swivel ring A bobbin of the bind tape, a brake roller provided on the C-shaped swivel ring, and applying a tension to the bind tape wound around the iron core by wiring the bind tape unwound from the bobbin; Rotation drive means for applying a rotating force to the bobbin by rotating the C-shaped turning ring. When the binding tape is wound around the iron core while tension is applied by the brake roller, the rotation driving means of the C-shaped turning ring and the binding tape on the bobbin when the binding tape is unwound from the bobbin by the rotation driving means. To the bobbin, a braking force that changes according to the decrease of
An iron core horizontal winding binding device, comprising: a feeding tension holding mechanism that suppresses a change in tension of the feeding tape. 2. The iron core horizontal winding device according to claim 1, wherein the payout tension holding mechanism includes a brake arm provided with a brake pad engageable with the bobbin, and a pressing direction of the brake pad with respect to the bobbin. A spring whose one end is connected to the brake arm so as to urge it to the other end, and which is connected to the other end of the spring and attached so as to rotate according to the remaining amount of the bind tape on the bobbin. An iron core horizontal winding binding device, comprising: a tape remaining amount check arm that reduces the biasing force of the spring and the braking force of the brake pad as the amount decreases. 3. The iron core lateral winding device according to claim 1, wherein a binding tape which is provided on the C-shaped turning ring and is wound around the iron core via the plurality of brake rollers is wired so that the iron core is wound. An iron core horizontal winding binding device further comprising a tension fluctuation preventing mechanism that absorbs fluctuations in the tension of the bind tape caused by the deviation of the center of the C-shaped turning ring from the center of the binding tape. 4. The iron core horizontal winding device according to claim 1, wherein the pressing mechanism is provided at an upper portion of the portal frame and applies a pressing force to the iron core, and is provided at a lower portion of the portal frame, An iron core pressing mechanism that has a hooking part that can be engaged with the horizontal loading part, and that gives a tightening force to the iron core by receiving a reaction force of the pressing mechanism at this hooking part, and tightly fixes the laminated thin steel plates of the iron core. The iron core horizontal winding device further comprising: 5. An iron core horizontal winding binding device in which a binding tape is wrapped around an iron core formed by laminating a plurality of thin steel plates on a horizontal loading portion to bind and fix the iron core so that the horizontal loading portion surrounds an upper portion of the iron core. The gate-shaped frame to be installed, the C-shaped swivel ring provided on the gate-shaped frame so as to rotate around the iron core, and having a notch in a part in the circumferential direction, and the C-shaped swivel ring A bobbin of the bind tape, a brake roller provided on the C-shaped swivel ring, and applying a tension to the bind tape wound around the iron core by wiring the bind tape unwound from the bobbin; Rotation drive means for applying a rotating force to the bobbin by rotating the C-shaped turning ring. Then, a rotation driving means of the C-shaped swivel ring that winds the bind tape around the iron core while applying tension by the brake roller, and the C-shaped swivel ring is provided and wound around the iron core via the plurality of brake rollers. And a tension fluctuation preventing mechanism that absorbs fluctuations in the tension of the bind tape caused by the deviation of the center of the iron core and the center of the C-shaped swivel ring. Binding device. 6. The iron core horizontal winding device according to claim 5, wherein the tension fluctuation preventing mechanism includes a guide rail fixed to the C-shaped turning ring, and a slide table slidably installed on the guide rail. A free roller provided on one end side of the slide table for suspending the bind tape wound around the iron core, and a constant load spring mechanism provided on the other end side of the slide table for applying a traction force to the slide table. An iron core horizontal winding binding device having. 7. An iron core horizontal winding binding device in which a binding tape is wrapped around an iron core formed by laminating a plurality of thin steel plates on a horizontal loading portion to bind and fix the iron core so that the horizontal loading portion surrounds an upper portion of the iron core. The gate-shaped frame to be installed, the C-shaped swivel ring provided on the gate-shaped frame so as to rotate around the iron core, and having a notch in a part in the circumferential direction, and the C-shaped swivel ring A bobbin of the bind tape, a brake roller that is provided on the C-shaped swivel ring, and applies a tension to the bind tape wound around the iron core by wiring the bind tape that is unwound from the bobbin. It is a rotation drive means for giving a rotational force, and the bind tape is fed out from the bobbin by rotating the C-shaped turning ring. A rotation driving means for the C-shaped swivel ring that winds the bind tape around the iron core while applying tension by the brake roller, and a pressing mechanism that is provided on the gate-shaped frame and applies a pressing force to the iron core, It is provided in the lower portion of the gate-shaped frame and has a hooking portion that can be engaged with the horizontal loading portion, and the hooking portion receives a reaction force of the pressing mechanism to give a tightening force to the iron core, thereby An iron core horizontal winding device, comprising: an iron core pressing mechanism for tightly fixing the constituent thin laminated steel plates.