JP2006005033A - Transformer coil separating method and system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transformer coil separating method and system by which a pair of annular iron cores of a shell type transformer core and a coil can be easily separated from each other. <P>SOLUTION: The method of separating the pair of annular iron cores constituting the shell type transformer core and the coil wound via an opening of each iron core comprises a process (a) of moving a blade nearly perpendicularly to a coil winding direction toward the annular surfaces of the annular iron cores to cut the coil, and a process (b) of separating the annular iron cores and the coil by moving the coil so that part of the annular iron cores pass through the cut portion of the coil created in the process (a). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a transformer coil separation method and a transformer coil separation system for separating an iron core and a coil constituting a transformer core.

  In general, electric power supplied from a power plant to a building or house through an electric wire is adjusted to an appropriate voltage (for example, 100 V) by a transformer installed on a utility pole or the like.

  This transformer is a device that raises and lowers the AC voltage using electromagnetic induction, and winds it through an iron core in which a substantially strip-like plate of soft magnetic material (for example, silicon steel) is laminated in an annular shape and an opening in the center of the iron core. An inner iron type transformer core composed of a plurality of (for example, two) coils made of copper wire or the like, or a pair of annular iron cores and an outer iron type composed of coils wound through the openings of each iron core Has a transformer core.

  The iron core of the transformer core generates heat due to the flow of eddy currents perpendicular to the magnetic flux while repeating electromagnetic induction, causing heat loss of electric power. The laminated structure of the iron core is intended to reduce heat loss due to this eddy current. However, since the heat generation of the transformer increases as the capacity increases, an oil-filled transformer in which an iron core and a coil are immersed in a container containing insulating oil has been used for both electrical insulation and cooling. .

  As an insulating oil for an oil-filled transformer, an oil containing PCB (polychlorinated biphenyl) excellent in chemical stability, insulating properties, nonflammability, and adhesiveness (hereinafter referred to as “PCB oil”) is frequently used. Yes. PCB oil is mainly used as insulation oil for transformers and capacitors, but it is used as a heating medium for heaters and dryers, plasticizers for electric wires and resins, solvents for paints and pressure-sensitive paper (non-carbon paper), and the effectiveness of agricultural chemicals. It has also been used as an extender. However, since it has been found that PCB is an environmental pollutant that adversely affects the human body, many offices are forced to store waste PCB oil and electrical equipment containing PCB. In addition, PCBs were prohibited from being manufactured or imported in 1972, but PCBs that are sealed and used, such as insulation oil used in transformers and capacitors, are allowed to be used until the end of their useful life. Has been. As a result, many transformers and capacitors containing high-concentration PCBs continue to be used today.

  In the past, the processing method of the waste transformer was to take out the transformer from the tank, then incinerate the insulator and the insulating oil, and collect the remaining iron core and coil as valuable materials. However, incineration of insulating oil containing PCB is rarely performed at present because toxic dioxins may be generated when the combustion temperature is not properly controlled.

  Since the insulation oil of the waste transformer penetrates between the laminations of the iron core and the inside of the coil, the iron core and the coil are separated to completely remove the insulation oil. It is necessary to remove the insulating oil separately from

  The following patent document discloses a winding cutting method and apparatus for a transformer as a technique for separating an iron core and a coil of the transformer. According to this technique, the winding of the transformer is cut by pushing the shear blade moving along the side surface of the iron core.

Japanese Patent No. 3232285

  However, in the above-described transformer winding cutting method and apparatus, a part of the winding is moved by being pushed by the shearing blade, so that the winding cannot be easily cut within the movable range of the shearing blade.

  An object of the present invention is to provide a transformer coil separation method and a transformer coil separation system that can easily separate a pair of annular iron cores and coils constituting a core-type transformer core.

  The transformer coil separation method of the present invention is a method for separating a pair of annular cores constituting an outer iron type transformer core and a coil wound through an opening of each core, and (a) the annular ring A step of cutting the coil by moving the blade substantially perpendicular to the winding direction of the coil toward the annular surface of the iron core; and (b) a coil in which a part of the annular iron core is formed in the step (a). A step of separating the annular core and the coil by moving the annular core or the coil so as to pass through the cut.

  As a specific aspect of the above method, in the step (a), the blade is moved substantially perpendicular to the winding direction of the coil along the annular surface so as not to be parallel to the annular surface of the annular core. To do.

  (C) After the step (a), the curved surface of the coil protruding from the opening of the annular core and covering a part of the annular surface is pushed from the inside of the cut of the coil to press the annular surface. A step of deforming so as not to cover.

  In the step (b), a part of the coil deformed in the step (c) is pushed into the opening of the annular core.

  Alternatively, (d) includes a step of moving the pair of annular cores away from each other to create a gap between the two cores, and in the step (b), the gap is formed from the gap created in the step (d). Press the part of the coil located on the opposite side.

  In a specific aspect of the above method, the blade is a double-edged blade.

  A transformer core separation system according to the present invention is a system for separating a pair of annular iron cores constituting an outer iron type transformer core and coils wound through openings of the respective iron cores, and includes a coil cutting device and a coil. And a removal device.

  The coil cutting device includes a blade for cutting the coil in a direction perpendicular to the winding direction thereof, the annular surface of the annular iron core and the blade facing each other, and the blade is substantially perpendicular to the winding direction of the coil. A core support that supports an annular core, coil, or transformer core, and a blade movement that moves the blade toward the annular surface when the core support supports the annular core, coil, or transformer core. Means.

  The coil removing device includes a coil-shaped forming tool that deforms the coil by moving in a predetermined direction while being inserted in a coil cut cut by the blade, and the annular shape of the coil-shaped forming tool and the annular iron core is opposed to each other. A core support that supports the annular core, coil, or transformer core, and when the core support supports the annular core, coil, or transformer core, the coil-shaped forming tool is A molding tool moving means for inserting and deforming the curved portion of the coil protruding from the opening of the annular core and covering a part of the annular surface from the inside of the cut so as not to cover the annular surface; A coil removal tool that can be inserted into the opening of the annular core and moves in a predetermined direction to remove the coil from the annular core, and a part of the coil protruding from the opening is pushed into the opening. And a removal tool moving means for moving the sea urchin the coil removal tool.

  In an embodiment of the present system, a pair of the coil-shaped forming tools are provided, and the forming tool moving means protrudes in pairs from the openings of the annular cores so that a gap is formed between the pair of annular cores. The pair of coil-shaped forming tools are moved so as to push parts of the coils away from each other, and the removing tool moving means inserts the coil removing tool into the gap and is positioned on the opposite side of the cut. I will push a part of.

  The coil cutting device and the coil removing device are installed side by side, and instead of the core support provided in each device, the transformer is supported in the state where the annular core, coil, or transformer core is supported. A movable core support is provided for moving the core from the coil cutting device side to the coil removing device side.

  In a specific aspect, the movable core support includes a pair of horizontal members installed from the coil cutting device side to the coil removal device side, and one annular surface of the annular iron core on both sides of the coil. An annular surface support that is supported from below and is movable on the horizontal member, and a support tool movement that moves the annular surface support from the coil cutting device side toward the coil removal device side on the horizontal member. And means.

  Furthermore, the support tool moving means has one end fixed to the annular surface support tool so as to be parallel to the horizontal member, and at least a ball screw longer than a distance from the coil cutting device to the coil removing device, and the ball screw. And a motor having meshing gears.

  According to the transformer coil separation method of the present invention, the coil can be completely cut by moving the blade toward the annular surface of the pair of annular cores and substantially perpendicular to the winding direction of the coil. . Further, the annular core and the coil can be separated from each other by moving the annular core or the coil so as to pass a part of the core from the cut line of the coil formed in this cutting step.

  Further, in the coil cutting step, the coil can be cut by moving the blade so as not to be parallel to the annular surface of the annular core and substantially perpendicular to the winding direction of the coil along the annular surface. is there.

  Furthermore, after the coil cutting step, a step of deforming the curved portion of the coil protruding from the opening of each annular core and covering a part of the annular surface from the inside of the coil cut so as not to cover the annular surface. By including the coil, the coil can easily pass through the opening of the annular core, so that the annular core and the coil can be more easily separated. In this case, both of them can be separated by pushing a part of the deformed coil into the opening of each annular core. Alternatively, a pair of annular iron cores are moved away from each other to create a gap between the two iron cores, and a coil remover or the like having an appropriate shape is inserted into the gap, and a part of the coil located on the opposite side of the cut is inserted. It is also possible to separate the two by pressing.

  Moreover, a double blade can be employ | adopted for a cutter.

  According to the transformer core separation system of the present invention, a coil cutting device including a blade for cutting a coil in a direction perpendicular to the winding direction thereof, and a slit formed in the cut coil can be inserted into a predetermined direction. The coil is completely cut by having a coil-shaped forming tool that moves to deform the coil and a coil removal device that can be inserted into the opening of each annular core and that has a coil removal tool that removes the coil from the annular core. After that, the annular core and the coil can be easily separated.

  Further, the coil-shaped forming tool is provided in a pair, and the forming tool moving means is a direction in which a part of the coils protruding from the opening of each annular core is separated from each other so that a gap is formed between the pair of annular cores. The pair of coil-shaped forming tools are moved so as to push, and the removing tool moving means inserts the coil removing tool into the gap and pushes a part of the coil located on the opposite side of the coil cut. The annular core and the coil can be easily separated.

  Furthermore, a movable core support that moves the transformer core from the coil cutting device side to the coil removing device side with the coil cutting device and the coil removing device installed side by side and supporting the annular core, the coil, or both. By providing, it is possible to carry out the whole process by flow work. This movable core supporter supports a pair of horizontal members installed from the coil cutting device side to the coil removal device side and one annular surface of the annular iron core from the lower side on both sides of the coil. And an annular surface support that moves the annular surface support from the coil cutting device side toward the coil removal device side on the horizontal member. Further, the support tool moving means includes a ball screw having one end fixed to the annular surface support tool so as to be parallel to the horizontal member, a ball screw longer than the distance from the coil cutting device to the coil removing device, and a gear meshing with the ball screw. It can be composed of a motor.

  FIG. 1 shows a coil cutting device 1 constituting a transformer coil separation system for carrying out the transformer coil separation method of the first embodiment.

This coil cutting device 1
A rectangular pedestal 2 that supports the standing of the entire device;
Two vertical frames 3a and 3b standing vertically with a predetermined interval (for example, 1 m) at the center of the pedestal 2,
An upper frame 4 that horizontally connects the upper portions of the vertical frames 3a and 3b;
An intermediate frame 5 that connects the vertical frames 3a and 3b horizontally at the intermediate position.
It has a steel structure composed of

  The coil cutting device 1 includes a double-edged blade 7 having a width larger than the length in the direction perpendicular to the winding direction of the coil of the transformer core. Both ends of this blade 7 are fitted in vertical grooves 8 provided on the mutually opposing surfaces of the vertical frames 3a, 3b of the coil cutting device 1, and can be moved up and down with the blade edge facing downward. Yes. In addition, the material of the blade 7 is preferably a material that is hard and resistant to impact and wear (for example, alloy tool steel) in order to reduce damage caused by repeatedly cutting a coil made of copper or the like.

  The coil cutting device 1 is provided with a hydraulic cylinder 10 vertically between the upper frame 4 and the intermediate frame 5 as blade moving means for moving the blade 7 up and down. The hydraulic cylinder 10 is a double-acting cylinder having hydraulic oil inlets and outlets at both ends, and oil supply pipes 11a and 11b for supplying and discharging hydraulic oil are connected to the respective inlets and outlets. The double-acting cylinder is provided with a hydraulic oil inlet / outlet at both ends of the cylinder, thereby enabling the piston to reciprocate by changing the flow of the hydraulic oil using a direction control valve of a hydraulic control device described later. The hydraulic cylinder 10 has a built-in position sensor that can detect the position of the piston inside the cylinder and output it as an electrical signal.

  The piston rod 13 of the hydraulic cylinder 10 extends downward through the intermediate frame 5, and its tip is fitted and fixed to a cylindrical piston head 14. By fixing the piston head 14 and the blade fixture 15 attached so as to sandwich the upper portion of the blade 7, the blade 7 can move up and down by receiving power from the hydraulic cylinder 10.

  Further, the coil cutting device 1 includes a hydraulic control device 16 that controls whether hydraulic oil is supplied to the hydraulic cylinder 10. The hydraulic cylinder 10 is supplied with hydraulic oil from the hydraulic control device 16 through the oil feed pipe 11a or 11b, and can supply, for example, about 50 tons of power. Specifically, the hydraulic control device 16 is provided with an operation button 17 and a stop button 18 for switching whether or not hydraulic oil is supplied to the hydraulic cylinder 10, and when the operation button 17 is pressed, Correspondingly, hydraulic oil is supplied from the hydraulic control device 16 to the hydraulic cylinder 10, and the cutter 7 may be configured to be lowered by receiving power from the hydraulic cylinder 10.

  On the pedestal 2 of the coil cutting device 1, the transformer core 20 can be placed between the two vertical frames 3a and 3b. The transformer core 20 is constituted by a pair of annular iron cores 21a and 21b formed by annularly winding a strip-shaped thin iron plate, and a so-called coil 23 wound through the openings 22a and 22b of the respective iron cores 21a and 21b. This is an outer iron type transformer core. The coil 23 is formed by winding a plurality of strip-shaped conductive wires (for example, 2 cm wide copper wires) 24 arranged in parallel and insulating paper (not shown) in a plurality of turns.

  Further, a pair of core supports 25a and 25b forming a rectangular parallelepiped are arranged in parallel at a predetermined interval on the pedestal portion 2 between the two vertical frames 3a and 3b. The annular surfaces 26a and 26b on the lower side of the annular cores 21a and 21b of the core 20 are supported from below. The interval between the core support members 25a and 25b is preferably slightly larger than the length in the direction perpendicular to the winding direction of the coil 23, for example, so that the core support members 25a and 25b are located under the annular cores 21a and 21b. When the annular surfaces 26a and 26b are supported, a part of the coil 23 enters between the pair of core supports 25a and 25b.

  When the transformer core 20 is supported by the core supports 25a and 25b, the upper surfaces of the annular cores 21a and 21b face the blades 7 and the blade 7 is wound around the coil 23 as shown in the figure. The annular cores 21a and 21b are preferably placed on the core supports 25a and 25b so as to be perpendicular to the direction. Thereby, if the blade 7 descends in response to the power of the hydraulic cylinder 10, the coil 23 can be cut from above the transformer core 20 in a direction perpendicular to the winding direction of the coil 23.

  In addition, the pair of core supports 25a and 25b are made of a magnetic material such as iron, so that the transformer core 20 may move or fall due to an impact or the like when the coil 23 is cut with the blade 7. Sometimes, as shown in the figure, a plurality of (for example, four) magnets 38a, 38b, 38c, 38d (38d is invisible in the figure) are placed on the core supports 25a, 25b, and the transformer core 20 is sandwiched and fixed. can do. The magnets 38a, 38b, 38c, and 38d can be switched between an excited state and a demagnetized state in accordance with the rotation of the adjustment knobs 39a, 39b, 39c, and 39d provided on the side surfaces.

  When the coil 23 of the transformer core 20 is cut by the coil cutting device 1, a metal plate (for example, a gap between the annular surfaces 26a and 26b on the upper side of the annular cores 21a and 21b and the coil 23 is used as shown in the figure. By inserting the stainless steel plate 27, it is possible to prevent the blade 7 from biting into the annular iron cores 21 a and 21 b after cutting the coil 23.

  FIG. 2 shows a state when the coil cutting device 1 cuts the coil 23 of the transformer core 20 in the coil cutting step of the transformer coil separation method of the first embodiment. When cutting the coil 23, the blade 7 passes through the center of the transformer core 20 (for example, the position of the broken line in the figure) toward the metal plate 27 on the annular surfaces 26a and 26b of the iron cores 21a and 21b. It should be lowered.

  FIG. 3 shows a state when the coil 23 of the transformer core 20 is cut with the blade 7. As shown in the figure, when the blade 7 descends and cuts the coil 23, a cut (for example, a V-shaped cut) 28 is formed in the coil 23.

  In the coil cutting device 1 of the first embodiment, the hydraulic control device 16 of the coil cutting device 1 uses the pressure (for example, hydraulic pressure) required for the blade 7 to descend and cut the coil 23 of the transformer core 20 as described above. ) Is detected, and when the pressure reaches a predetermined magnitude, control is performed so that the lowering of the blade 7 automatically stops. Thereby, when the blade 7 contacts the metal plate 27 inserted between the annular surfaces 26a, 26b of the annular cores 21a, 21b and the coil 23, the lowering of the blade 7 can be stopped.

  FIG. 4 shows the configuration of the hydraulic cylinder 10 and the hydraulic control device 16 of the coil cutting device 1.

  The hydraulic cylinder 10 has a built-in position sensor 29 that can detect the position of the piston in the cylinder and output this as an electrical signal.

The hydraulic control device 16
A tank 30 for storing hydraulic oil;
A pump 31 for pumping hydraulic oil in the tank 30;
A servo motor 32 for driving the pump 31;
A motor driver 33 for controlling the drive / stop of the servo motor 32;
Pressure detection means (for example, a pressure sensor) 34 capable of detecting the pressure of hydraulic oil pumped from the pump 31 and outputting the detected pressure as an electrical signal;
The hydraulic oil pumped from the pump 31 is supplied to the hydraulic cylinder 10 through one of the oil feed pipes 11a and 11b (FIG. 1), and at the same time, the hydraulic oil is sent from the hydraulic cylinder 10 through the other oil feed pipe 11b or 11a. Directional control valve 35 for sending the hydraulic oil to be supplied to tank 30;
When an electric signal (hereinafter referred to as “pressure signal”) representing the hydraulic pressure output from the pressure sensor 34 is received and reaches a predetermined magnitude, the flow direction of the hydraulic oil supplied to the hydraulic cylinder 10 is switched. And a cutting control means (for example, CPU) 37 for controlling the direction control valve 35 and controlling the motor driver 33 based on a signal output from the position sensor 29. Further, the motor driver 33 receives an operation signal or a stop signal output in response to pressing of the operation button 17 or the stop button 18 provided in the hydraulic control device 16, and drives / stops the servo motor 32 based on this signal. Can be controlled.

An operation mode of the hydraulic control device 16 will be described. First, when the operation button 17 provided in the hydraulic control device 16 is pressed, an operation signal is input to the motor driver 33 based on this. The motor driver 33 drives the servo motor 32 based on the above operation signal, and the pump 31 pumps the hydraulic oil in the tank 30 along with this, and is supplied to the hydraulic cylinder 10 through the oil feed pipe 11a. Thereby, the blade 7 (FIG. 1) descends and cuts the coil 23 of the transformer core 20. The pressure (hydraulic pressure) required for the blade 7 to cut the coil 23 is, for example, 10 kg / cm ² (about 3 tons).

  The blade 7 contacts the metal plate 27 inserted between the annular surfaces 26 a and 26 b on the upper sides of the annular cores 21 a and 21 b and the coil 23 after completely cutting the coil 23. Here, when the metal plate 27 made of a material harder than copper (for example, stainless steel) is used, it is necessary to lower the blade 7 when the blade 7 comes into contact with the metal plate 27. Pressure rises rapidly. As a result, the CPU 37 of the hydraulic control device 16 controls the direction control valve 35 based on the pressure signal output from the pressure sensor 34 when the pressure signal reaches a preset pressure value (for example, 20 tons). Switch the flow of hydraulic fluid. Thereby, when the blade 7 comes into contact with the metal plate 27, the lowering is stopped and the blade 7 is lifted by the power of the hydraulic cylinder 10.

  As described above, the hydraulic control device 16 controls the operation of the hydraulic cylinder 10 to prevent the cutter 7 from biting into the annular surfaces 26a and 26b of the annular cores 21a and 21b. As a result, when the blade 7 bites into the annular surfaces 26a, 26b of the annular cores 21a, 21b, at the same time, the cut ends of the coil 23 also bite into the cuts of the annular cores 21a, 21b, and thereafter the annular cores 21a, 21b. The problem that it is difficult to remove the coil 23 from the coil can be avoided.

  Further, the position sensor 29 built in the hydraulic cylinder 10 is configured to stop the operation of the hydraulic cylinder 10 when outputting a signal indicating that the piston has moved (lowered) to a predetermined position in the cylinder. It is possible. As a result, if a position for lowering the blade 7 is determined in advance and control is performed so that the lowering of the blade 7 is stopped at that position, coils of a plurality of transformer cores of the same size can be continuously flowed. It can also be cut.

  Next, after cutting the coil 23, the cutter 7 is preferably raised to the highest position within the movable range of the hydraulic cylinder 10. Then, if the position sensor 29 built in the hydraulic cylinder 10 is configured to output a signal indicating that the blade 7 has been lifted completely, the CPU 37 of the hydraulic control device 16 that has received the signal will receive the motor driver. The operation of the hydraulic cylinder 10 can be stopped by controlling the drive of the servo motor 32 by controlling 33.

  Further, when the stop button 18 of the hydraulic control device 16 is pressed, a stop signal is output along with this, and the motor driver 33 receiving the stop signal stops the drive of the servo motor 32, so that the operation of the hydraulic cylinder 10 is performed. Can be configured to stop.

  FIG. 5 shows a coil removal device 40 of the transformer coil separation system of the first embodiment.

The coil removing device 40 is
A rectangular pedestal 42 for supporting the standing of the entire apparatus;
Vertical frames 43 a, 43 b, 43 c, 43 d erected vertically from the four corners of the pedestal portion 42;
Upper frames 44a, 44b, 44c, 44d that horizontally connect upper ends of adjacent vertical frames 43a, 43b, 43c, 43d, respectively;
The vertical frames 43b and 43c on the right side (right side in the figure) and the vertical frames 43a and 43d on the left side (left side in the figure) are horizontally placed at a position slightly below the center of the vertical frames 43a, 43b, 43c and 43d. The steel frame structure comprised by the intermediate | middle frames 46a and 46b to connect is comprised.

In addition, the coil removing device 40 includes a means for separating the coil 23 of the transformer core 20 and the annular iron cores 21a and 21b cut by the coil cutting device 1,
A pair of coil-shaped forming tools 50a, 50b that have thin portions (for example, tapers) 48a, 48b that can be inserted into the cuts 28 formed in the coil 23 and move in a predetermined direction to deform the coil 23;
The thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b and the annular surfaces 26a and 26b of the annular cores 21a and 21b face each other, and the thin portions 48a and 48b and the cut 28 of the coil 23 are parallel to each other. A pair of core supports 51a and 51b that support the annular cores 21a and 21b from below with the coil 23 sandwiched therebetween,
Forming tool moving means 52a, 52b for moving the coil shape forming tools 50a, 50b in a predetermined direction;
A coil remover 54 having a long plate-like portion 53 (for example, about 1 m), which descends and removes the coil 23 from the annular cores 21a, 21b of the transformer core 20,
A removal tool moving means (for example, a hydraulic cylinder) 56 for moving the coil removal tool 54 up and down is provided.

  Of the pair of core supports 51a and 51b, the core support 51a on the near side (the near side in the figure) is provided with horizontal protrusions on both the left and right sides, which are intermediate frames of the coil removing device 40. It can be slid by fitting in a groove 58 provided horizontally in 46a and 46b. In addition, a horizontally long rectangular member 59 is horizontally fixed at the same height as the intermediate frames 46a and 46b on the left and right sides of the coil removing device 40 on the front surface (front side in the drawing). A pair of hydraulic cylinders 60a and 60b are fixed to the left and right sides of the front surface of the rectangular member 59, and each piston rod extends through the rectangular member 59 toward the inside of the apparatus. Is fixed to the core support 51a on the front side. Thereby, the core support 51a can move forward and backward by receiving power from the hydraulic cylinders 60a and 60b.

  On the other hand, the rear core support 51b is horizontally fixed (for example, welded) between the vertical frames 43c and 43d at the same height as the left and right intermediate frames 46a and 46b.

  When the transformer core 20 is supported by the core supports 51a and 51b, the interval between the core supports 51a and 51b is slightly larger than the length in the direction perpendicular to the winding direction of the coil 23, and the core support 51a. , 51b, a part of the coil 23 may be fitted. Thereby, the transformer core 20 is supported from below with a part of the annular cores 21a and 21b being placed on the core supports 51a and 51b. Then, by moving the core support 51a on the near side to the transformer core 20 side, the transformer core 20 is stable in a state where a part of the coil 23 is sandwiched between the pair of core supports 51a and 51b. To be supported. When the transformer core 20 is supported by the core supports 51 a and 51 b, it is inserted between the annular surfaces 26 a and 26 b of the annular cores 21 a and 21 b and the coil 23 in the coil cutting process by the coil cutting device 1. The metal plate 27 that has been removed is preferably removed in advance.

The tool moving means 52a and 52b of the coil removing device 40 are:
When the core supports 51a and 51b support the annular cores 21a and 21b of the transformer core 20, one of the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b can be inserted into the cut 28 of the coil 23. And moving means (for example, hydraulic cylinders) 62a, 62b for horizontally moving the coil shape forming tools 50a, 50b,
For the same purpose as above, moving means (for example, hydraulic cylinders) 63a and 63b for moving the coil-shaped forming tools 50a and 50b up and down,
For example, moving means (for example, a hydraulic cylinder) 64a that moves the coil-shaped forming tools 50a and 50b in a predetermined direction so as to widen the cut 28 by the thin portion 48a of the coil-shaped forming tool 50a inserted into the cut 28 of the coil 23. , 64b.

  Specifically, vertical grooves 66a and 66b are provided on the surfaces of the left vertical frames 43a and 43d facing each other and the surfaces of the right vertical frames 43b and 43c facing each other. Further, between the left vertical frames 43a and 43d and between the right vertical frames 43b and 43c, rectangular members 67a and 67b having protrusions at both ends are arranged, respectively. The vertical grooves 43a, 43b, 43c, 43d of the vertical grooves 66a, 66b are slidably fitted.

  In addition, rectangular cylinder fixing tools 68a and 68b for fixing hydraulic cylinders 62a and 62b for horizontally moving the coil-shaped forming tools 50a and 50b are attached to the centers of the rectangular members 67a and 67b. Furthermore, hydraulic cylinders 63a and 63b for moving the coil-shaped forming tools 50a and 50b up and down are fixed to the upper parts of the upper frames 44d and 44b of the coil removing device 40 located above the rectangular members 67a and 67b. The piston rod extends downward through the upper frames 44d and 44b, and the piston head and the cylinder fixtures 68a and 68b are connected. Thereby, each rectangular member 67a, 67b can move up and down by receiving the power from the hydraulic cylinders 63a, 63b installed in the upper frames 44d, 44b.

  Further, on the rectangular members 67a and 67b, rectangular connecting members 70a and 70b for horizontally connecting the both ends are fixed, so that the left and right rectangular members 67a and 67b are integrated into the upper and lower sides. It can be moved. In the connecting members 70a and 70b, cord-like grooves 72a and 72b are horizontally provided on the surfaces facing each other over the entire length. Between the connecting members 70a and 70b, rectangular horizontal moving members 73a and 73b to which the piston heads of the hydraulic cylinders 62a and 62b for horizontally moving the coil-shaped forming tools 50a and 50b are located. Projections provided at both ends of 73a and 73b are fitted in grooves 72a and 72b of the connecting members 70a and 70b so as to be slidable. Thereby, the horizontal moving members 73a and 73b can move horizontally (left and right in the figure) by receiving power from the hydraulic cylinders 62a and 62b.

  A pair of hinge members 75a and 75b are fixed to the horizontal movement members 73a and 73b on the surface located on the center side of the coil removing device 40, and a coil shape is formed via the hinge members 75a and 75b. The molding tools 50a and 50b are fixed. As a result, the coil-shaped forming tools 50a and 50b can be rotated vertically around the fulcrum of the hinge members 75a and 75b.

  Further, hydraulic cylinders 64a and 64b for moving the coil shape forming tools 50a and 50b in a predetermined direction are fixed on the horizontal moving members 73a and 73b. These hydraulic cylinders 64a and 64b are hydraulic cylinders configured integrally with a fixture having a hinge mechanism. The piston rod extends toward the center of the apparatus, and piston heads 77a and 77b having a hinge mechanism are connected. It is connected to the upper part of coil shape forming tools 50a and 50b. Thereby, the coil shape forming tools 50a and 50b receive power from the hydraulic cylinders 64a and 64b and can rotate around the fulcrum of the hinge members 75a and 75b fixed to the horizontal moving members 73a and 73b.

  Next, the arrangement configuration of the coil removal tool 54 and the removal tool moving means (for example, hydraulic cylinder) 56 will be described.

  Rectangular members 76a and 76b are vertically fixed (for example, welded) to the central portions of the connecting members 70a and 70b for connecting the left and right forming tool moving means 52a and 52b of the coil removing device 40, and the upper end portions thereof. The two are connected horizontally by a rectangular member 78. On the upper surface of the rectangular member 78, a hydraulic cylinder 56 is fixed vertically as a removal tool moving means, and the piston rod extends downward through the rectangular member 78. On the other hand, the coil removal tool 54 is fixed to an elongated plate-like portion 53 made of iron or the like and an upper portion of the plate-like portion 53, and has a size such that the piston rod of the hydraulic cylinder 56 is fitted on the upper surface side. It is comprised with the substantially cylindrical piston rod fixing tool 79 provided with the hole. The coil remover 54 is integrated with the hydraulic cylinder 56 by fitting the piston rod of the hydraulic cylinder 56 into the hole on the upper surface of the piston rod fixture 79, and can move up and down by receiving power from the hydraulic cylinder 56. It has become.

  FIG. 6 shows a state in which the coil-shaped forming tools 50 a and 50 b of the coil removing device 40 (FIG. 5) are moved and the thin portion 48 a of one coil-shaped forming tool 50 a is inserted into the cut 28 of the coil 23.

  In the coil removing device 40 of the first embodiment, when performing the step of separating the annular cores 21a, 21b and the coil 23 of the transformer core 20 in the transformer coil separation method, the coil 23 is deformed into an appropriate shape in advance. Specifically, first, as shown in the figure, the hydraulic cylinders 62a and 62b of the molding tool moving means 52a and 52b of the coil removing device 40 are operated, and the tip of the thin portion 48a of one coil-shaped molding tool 50a is moved to the coil. The thin portion 48b of the other coil-shaped forming tool 50b is positioned so as to contact the side surface of the coil 23 when lowered.

  Next, hydraulic cylinders 63a and 63b (FIG. 5) for vertical movement provided in the forming tool moving means 52a and 52b of the coil removing device 40 are operated to lower the coil shape forming tools 50a and 50b.

  FIG. 7 shows a state in which the thin portion 48 a of one coil shape forming tool 50 a is inserted into the cut 28 of the coil 23 and the thin portion 48 b of the other coil shape forming tool 50 b is in contact with the side surface of the coil 23. When inserting the thin portion 48a of the coil-shaped forming tool 50a into the cut 28 of the coil 23, it is preferable that the tip of the thin portion 48a completely passes through the cut 28 of the coil 23. Thereafter, a part of the coil 23 is deformed by moving the thin portion 48a of the coil-shaped forming tool 50a inserted in the cut 28 of the coil 23 toward the other coil-shaped forming tool 50b.

  FIG. 8 shows a state where the thin portion 48a of the coil-shaped forming tool 50a inserted in the cut 28 is moved to the other coil-shaped forming tool 50b side in order to deform the coil 23 of the transformer core 20. Specifically, by actuating the hydraulic cylinder 64a provided in the molding tool moving means 52a of the coil removing device 40 and contracting the piston rod, one of the coil-shaped molding tools 50a becomes the horizontal moving member of the molding tool moving means 52a. The thin member 48a moves to the other coil-shaped forming tool 50b side (the right side in the figure) along with the rotation about the fulcrum of the hinge member 75a fixed to 73a. Thus, in this step, the curved portions 80a and 80a of the coil 23 projecting upward from the openings 22a and 22b (FIG. 1) of the annular cores 21a and 21b and covering a part of the annular surfaces 26a and 26b The annular surfaces 26a and 26b can be deformed so as not to be covered by being pushed from the inside of the cut line 28 of the 23.

  FIG. 9 shows a state in which one curved portion 80b of the coil 23 is deformed by moving the thin portion 48a of one coil-shaped forming tool 50a. Thus, in the step of separating the annular cores 21a, 21b and the coil 23 in the transformer coil separating method of the first embodiment, when one coil-shaped forming tool 50a moves, the other coil-shaped forming tool 50b is coiled. Since the transformer core 20 as a whole is urged by the thin portion 48a of the coil-shaped forming tool 50a, the transformer core 20 does not move or fall over smoothly. Can proceed.

  Further, in the coil removing device 40, since the coil-shaped forming tools 50a and 50b are rotatable, the thin portion 48a or 48b of the coil-shaped forming tool 50a or 50b inserted into the cut 28 of the coil 23 of the transformer core 20. However, the coil 23 can be easily deformed using the rotational moment.

  As described above, when one of the curved portions 80b of the coil 23 is deformed, it is preferable that the curved portion 80b does not cover the annular surface 26b of the annular iron core 21b. Thereby, the one curved part 80b of the coil 23 forms the shaping | molding projection part 81b which protrudes upwards from the opening 22b of the cyclic | annular iron core 21b.

  FIG. 10 shows a state where one curved portion 80b of the coil 23 of the transformer core 20 is deformed and then the other curved portion 80a is deformed. The method of deforming the curved portion 80a is the same as the method of deforming the curved portion 80b. As a result of the deformation, the curved portion 80a forms a molding protrusion 81a that protrudes upward from the opening 22a of the annular core 21a.

  In the step of separating the annular cores 21a, 21b and the coil 23 in the transformer coil separation method, the curved portions 80a, 80b of the coil 23 are deformed so as not to cover the annular surfaces 26a, 26b of the annular cores 21a, 21b. After that, both are separated.

  FIG. 11 shows an example of a method for separating the annular cores 21a and 21b from the coil 23. If the curved portions 80a and 80b of the coil 23 can be deformed well, the annular cores 21a and 21b and the coil 23 can be separated by dropping the coil 23 by its own weight as shown in the figure.

  12 and 13 show a state where the thin portions 48a and 48b of both the coil-shaped forming tools 50a and 50b respectively press a part of the coil 23 from the inside.

  In the step of separating the annular cores 21a, 21b and the coil 23 in the transformer coil separating method of the first embodiment, when the coil 23 does not fall by its own weight as shown in FIG. 11, the pair of annular cores 21a, 21b are separated from each other. It moves to the direction (the direction of the arrow of FIG. 12), the clearance gap 82 is made between both iron cores, the coil removal tool 54 (FIG. 5) of the coil removal apparatus 40 is inserted from this clearance gap 82, and the other side of the cut | interruption 28 ( By pressing a part of the coil 23 located on the lower side in the drawing from above, the two can be separated.

  14 and 15 show a state in which the coil 23 is separated from the annular cores 21a and 21b by the coil remover 54 of the coil remover 40. FIG.

  In this way, the plate-like portion 53 of the coil removal tool 54 is inserted and lowered into the gap 82 between the two iron cores, and a part of the coil 23 positioned below the two annular iron cores 21a and 21b is pushed in, so that the annular iron core is inserted. 21a, 21b and the coil 23 can be easily separated.

  The first embodiment of the present invention has been described above. However, the present invention is not limited to this, and the steps in the coil cutting device 1 and the coil detaching device 40 can be performed in a flow operation. The specific configuration will be described as a second embodiment of the present invention.

  FIG. 16 shows the transformer coil separation system of the second embodiment, and shows a state in which the coil cutting device 85 and the coil removing device 86 are installed side by side.

The coil cutting device 85
A pair of vertical frames 87a, 87b;
An upper frame 88 that horizontally connects the upper portions of the vertical frames 87a and 87b;
It has a steel structure composed of an intermediate frame 89 that connects the vertical frames 87a and 87b at a predetermined height (for example, 1 m).

In addition, the coil cutting device 85 is a specific means for cutting the coil 97 of the transformer core 96.
A double-edged knife 93;
A hydraulic cylinder 94 is provided which is fixed on the upper frame 88 and serves as a means for moving the blade 93 up and down.

  Also in this coil cutting device 85, it is preferable to control the operation of the hydraulic cylinder 94 using the hydraulic control device 16 (FIGS. 1 and 4) provided in the coil cutting device 1 of the first embodiment.

  Further, when the coil 97 is cut by the coil cutting device 85, a cut 98 is formed in the coil 97 as in the case of the first embodiment.

The coil removing device 86 of the second embodiment is
Vertical frames 100a, 100b, 100c, 100d erected at the four corners of the device;
Of the vertical frames 100a, 100b, 100c, and 100d, upper frames 101a and 101b that horizontally connect the left two frames 100a and 100b and the upper two frames 100c and 100d, respectively,
Of the vertical frames 100a, 100b, 100c, and 100d at a predetermined height (for example, 1 m), the two left frames 100a and 100b and the two right frames 100c and 100d are connected horizontally. The steel frame structure comprised by the intermediate | middle frames 103a and 103b is comprised.

In addition, the coil removing device 86 is a means for separating the coil 97 of the transformer core 96 cut by the coil cutting device 85 and the annular cores 102a and 102b of the transformer core 96.
A pair of coil-shaped forming tools 104a and 104b having a thin portion (for example, a taper) that can be inserted into the cut 98 of the coil 97;
Forming tool moving means 106 for moving the coil shape forming tools 104a and 104b in the vertical and horizontal directions;
A coil removal tool 108 comprising a plate-like portion having a width substantially the same as the length in the direction perpendicular to the winding direction of the coil 97 of the transformer core 96;
A hydraulic cylinder 109 is provided as means for moving the coil removal tool 108 downward.

The shaping tool moving means 106 of the coil removing device 86 has a rectangular annular frame 110, and as a specific means for moving the pair of coil shape shaping tools 104a and 104b in the vertical direction and the horizontal direction,
In order to move the coil shape forming tools 104a and 104b in the vertical direction, a pair of hydraulic cylinders 112a fixed vertically on the upper frames 101a and 101b of the coil removing device 86 as means for moving the entire frame 110 in the vertical direction. 112b,
A pair of hydraulic cylinders 114a and 114b fixed horizontally to the frame 110 to move the coil shape forming tools 104a and 104b in the horizontal direction;
A cylinder fixing member 116 that is fixed to the rectangular ring frame 110 and supports a hydraulic cylinder 109 as a means for moving the coil removal tool 108 up and down is provided above the frame 110. With the above configuration, the pair of coil shape forming tools 104a and 104b can be moved up and down by the frame 110 moving up and down by receiving power from the hydraulic cylinders 112a and 112b.

  In this transformer coil separation system, the coil cutting device 85 and the coil removing device 86 are installed side by side. Specifically, the blade 93 of the coil cutting device 85 and the coil shape of the coil removing device 86 are arranged. Both devices are preferably arranged side by side so that the thin portions (for example, tapered portions) of the forming tools 104a and 104b are parallel to each other. In this transformer coil separation system, the movable core support 120 moves the transformer core 96 from the coil cutting device 85 side to the coil removing device 86 side while supporting the annular cores 102a and 102b of the transformer core 96. The various processes performed by both apparatuses can be performed by flow work.

The movable core support 120 is a specific means for moving the transformer core 96 from the coil cutting device 85 side to the coil removing device 86 side.
Two horizontal members 122a and 122b installed from the coil cutting device 85 side to the coil removing device 86 side;
The annular surfaces 124a and 124b on the lower side of the annular cores 102a and 102b of the transformer core 96 are supported from below on both sides of the coil 97, and the annular surface support 126a mounted on the horizontal members 122a and 122b so as to be horizontally movable. 126b,
Supporting means moving means 128 for moving the annular surface supporting tools 126a and 126b from the coil cutting device 85 side toward the coil removing device 86 side on the horizontal members 122a and 122b.

  Of the two horizontal members 122a and 122b installed from the coil cutting device 85 side to the coil removing device 86 side, one (the rear side in the figure) horizontal member 122a is an intermediate frame 89 of the coil cutting device 85 and The other horizontal member 122b is mounted on the intermediate frame 89 and the intermediate frames 103a, 103b so as to be horizontally movable. Hydraulic cylinders 125a and 125b are fixed horizontally to the vertical frame 87b on the front side of the coil cutting device 85 and the vertical frame 100c on the right side of the coil removing device 86, and the piston rods are connected to the horizontal members 122a and 122b. It extends toward the side and is connected to the horizontal member 122b on the near side. As a result, the front horizontal member 122b of the horizontal members 122a and 122b can move horizontally by receiving the power from the hydraulic cylinders 125a and 125b. Here, the distance between the horizontal members 122a and 122b is preferably slightly larger than the length in the direction perpendicular to the winding direction of the coil 97 of the transformer core 96.

  The annular surface supports 126a and 126b mounted on the horizontal members 122a and 122b have L-shapes in which two flat plates are joined at a right angle, respectively, and further, a rectangular shape is formed in the rear portion (the left portion in the figure). The flat plates 129a and 129a are fixed vertically. The annular surface supports 126a and 126b have one L-shaped part placed on the horizontal members 122a and 122b, and the other part along the surface where the horizontal members 122a and 122b face each other. The annular surface supports 126a and 126b support the transformer core 96 with a part of the annular cores 102a and 102b of the transformer core 96 placed on the upper surface side.

Further, the support tool moving means 128 for moving the annular surface support tools 126a and 126b on the horizontal members 122a and 122b,
One end is fixed to the flat plates 129a, 129b at the rear portions of the annular surface supports 126a, 126b so as to be parallel to the horizontal members 122a, 122b, and at least a pair of ball screws 132a, longer than the distance from the coil cutting device 85 to the coil removing device 86, 132b;
The motor 136 includes gears 134a and 134b that mesh with the ball screws 132a and 132b. As a result, the transformer core 96 has an annular surface when the ball screws 132a and 132b move in parallel with the longitudinal direction, that is, the horizontal members 122a and 122b as the gears 134a and 134b receive the power of the motor 136. It can move on the horizontal members 122a and 122b together with the support tools 126a and 126b.

  In the transformer coil separation system of the second embodiment, as described above, the coil cutting device 85 and the coil removing device 86 are installed side by side, and the transformer core 96 is conveyed from the coil cutting device 85 side to the coil removing device 86 side. By providing this means, the series of steps in the method for separating a transformer coil described in the first embodiment can be performed in a flow operation. Further, even when the coil 97 of the transformer core 96 is cut by the coil cutting device 85 of the second embodiment, the space between the annular surfaces 124 a and 124 b on the upper side of the annular cores 102 a and 102 b of the transformer core 96 and the coil 97. It is preferable to insert a metal plate (for example, a plate made of stainless steel) 140.

  A method of separating the annular cores 102a and 102b of the transformer core 96 and the coil 97 in this transformer coil separation system will be described.

  First, the step of mounting the transformer core 96 on the annular surface supports 126a and 126b on the horizontal members 122a and 122b of the movable core support 120 and cutting the coil 97 is performed. Specifically, the motor 136 of the support tool moving means 128 is driven, and the annular surface supports 126a and 126b are moved together with the transformer core 96 so that the coil 97 is positioned directly below the blade 93 of the coil cutting device 85. . The cutting position of the coil 97 by the coil cutting device 85 is the same as the position described in the first embodiment. Then, after cutting the coil 97, the metal plate 140 inserted between the annular cores 102a, 102b and the coil 97 is preferably removed.

  Then, the transformer core 96 is moved together with the annular surface supports 126a and 126b from the coil cutting device 85 side to the coil removing device 86 side. Specifically, the transformer core 96 is preferably located at the center of the coil removal device 86.

  Next, a step of deforming the coil 97 is performed. Specifically, the hydraulic cylinders 114a and 114b provided in the molding tool moving means 106 are operated to move the coil-shaped molding tools 104a and 104b horizontally, and the tip of the thin portion of the one coil-shaped molding tool 104a is The transformer core 96 is positioned directly above the cut 98 of the coil 97, and the thin portion of the other coil-shaped forming tool 104b is moved to a position where it contacts the side surface of the coil 97 when lowered. Then, by actuating the hydraulic cylinders 112a and 112b that vertically move the frame 110 of the forming tool moving means 106 and lowering the coil-shaped forming tools 104a and 104b together with the frame 110, a thin portion of one coil-shaped forming tool 104a. Can be inserted into the cut 98 of the coil 97. Thereafter, one of the horizontally moving hydraulic cylinders 114a and 114b of the coil-shaped forming tools 104a and 104b is operated to pull the piston rod, whereby the coil-shaped forming tool 104a causes the coil 97 to have a break 98. It pushes toward the other coil shape molding tool 104b side from the inside, and as a result, one curved part of the coil 97 deform | transforms (refer FIG. 9, FIG. 10). In the same manner, the other curved portion of the coil 97 is also deformed.

  As a result of deforming the coil 97 as described above, the curve of the coil 97 that protrudes upward from the openings 142a and 142b of the annular cores 102a and 102b and covers a part of the annular surfaces 124a and 124b of the annular cores 102a and 102b. The portion does not cover the annular surfaces 124a and 124b (FIGS. 9 and 10).

  When the coil 97 falls under its own weight in this state (see FIG. 11), all the steps of the transformer coil separation method of the second embodiment are completed. On the other hand, when the coil 97 does not fall under its own weight, both the coil-shaped forming tools 104a and 104b are inserted into the cuts 98 of the coil 97 and moved away from each other to create a gap between the iron cores (see FIG. 13). ). Then, by inserting and lowering the coil removal tool 108 into the gap (see FIG. 14), a part of the coil 97 located below both iron cores is pushed downward, and the annular iron cores 102a, 102b and the coil 97 are Can be separated (see FIG. 15).

  Although the second embodiment has been described above, the transformer coil separation method and the transformer coil separation system of the present invention are not limited to the above embodiments, and various embodiments as described below can be adopted.

  FIG. 17 shows a state when the coil 23 of the transformer core 20 is deformed by using only one coil shape forming tool 50a provided in the coil removing device 40 in the transformer coil separation system of the first embodiment. .

  In the first embodiment, when the curved portions 80a and 80b of the coil 23 are deformed, the thin portion 48a or 48b of one coil shape forming tool 50a or 50b is moved to the other coil shape forming tool 50b or 50a side. The pair of coil-shaped forming tools 50a and 50b are sandwiched between the plurality of (for example, four) magnets 150a, 150b, 150c, and 150d (150a is invisible), as shown in the figure. If fixed so as not to move, the curved portions 80a and 80b can be deformed only by moving one coil shape forming tool 50a (moving in the direction of the arrow in the figure). Similarly to the magnets 38a, 38b, 38c, 38d used in the coil cutting process of the first embodiment, the magnets 150a, 150b, 150c, 150d are also demagnetized / excited by the adjusting knobs 151a, 151b, 151c, 151d. Can be switched.

  FIG. 18 shows a state when one curved portion 80b of the coil 23 is deformed. Thus, by supporting the transformer core 20 with the magnets 150a, 150b, 150c, and 150d, even if the curved portion 80b of the coil 23 is pushed by the coil-shaped forming tool 50a, the transformer core 20 may fall down. This process can proceed smoothly without moving.

  Also in this embodiment, when one curved portion 80b of the coil 23 is deformed, it is preferable that the curved portion 80b does not cover the annular surface 26b of the annular iron core 21b. Thereby, the one curved part 80b of the coil 23 forms the shaping | molding projection part 81b which protrudes upwards from the opening 22b of the cyclic | annular iron core 21b.

  Then, as shown in the figure, after one curved portion 80b is deformed so as not to cover the annular surface 26b of the annular iron core 21b to form the forming projection 81b, the thin portion 48a of the coil-shaped forming tool 50a is placed on the opposite side. As shown in FIG. 19, the other curved portion 80a of the coil 23 is similarly deformed to form the forming protrusion 81a.

  Next, the step of removing the coil 23 from the annular cores 21a and 21b is performed. When the curved portions 80a and 80b of the coil 23 are deformed, the coil 23 falls by its own weight and is separated from the annular cores 21a and 21b ( In FIG. 11, all the steps in this embodiment are completed.

  FIG. 20 shows a state in which the coil 23 is pushed out from the annular cores 21a and 21b by the pair of rods 153a and 153b. In the first embodiment, the coil remover 54 provided in the coil remover 40 has the plate-like portion 53, but instead of the coil remover 54, a pair of rods 153a, 153b or rods 153a, A removal tool having 153b can be employed. In this case, the coil removing device 40 is preferably provided with a pair of removing tool moving means (for example, hydraulic cylinders) 56 as means for moving the bars 153a and 153b up and down. Then, the rods 153a and 153b are lowered, and the molding projections 81a and 81b of the coil 23 projecting upward from the openings 22a and 22b of the pair of annular cores 21a and 21b are pushed in from above. The rods 153a and 153b are preferably made with a thickness that can be inserted into the openings 22a and 22b of the pair of annular cores 21a and 21b.

  FIG. 21 shows a state in which the molding protrusions 81a and 81b of the coil 23 are pushed into the openings 22a and 22b of the annular iron cores 21a and 21b.

  Since the molding projections 81a and 81b of the coil 23 are deformed in advance so as not to cover the annular surfaces 26a and 26b of the annular cores 21a and 21b by the pair of rods 153a and 153b, the rods 153a and 153b are deformed. When the molding projections 81a and 81b are pushed from above, the molding projections 81a and 81b are not locked to the edges of the openings 22a and 22b of the annular cores 21a and 21b, and a part of the coil 23 is an annular core. It is possible to smoothly move (lower) in the openings 22a and 22b of 21a and 21b. Thereby, the annular cores 21a and 21b and the coil 23 are gradually separated.

  FIG. 22 shows a state in which the coil 156 of another type of outer iron type transformer core 155 is cut. In the first embodiment, the outer iron type transformer core 20 is composed of a pair of annular iron cores 21a and 21b formed by winding a thin belt-shaped iron plate in an annular shape, and a coil 23 wound through the openings 22a and 22b of each iron core. As shown in the figure, a pair of rectangular annular cores 157a and 157b in which approximately strip-shaped iron plates 159 are stacked in a rectangular ring shape, and a coil 156 wound through openings 158a and 158b of the respective cores. It is also possible to target the configured one. The coil 156 of the transformer core 155 can also be cut by the same method as in the first embodiment, using the coil cutting device 1 used in the first embodiment. Also in this case, it is preferable to insert a metal plate (for example, a plate made of stainless steel) 160 between the rectangular annular cores 157a and 157b and the coil 156.

  FIG. 23 shows a state when the coil 156 of the transformer core 155 is deformed by the coil removing device 40 used in the first embodiment. Also in this case, the coil 156 can be deformed by the same method as in the first embodiment (FIGS. 6 to 10). After the coil 156 is deformed, if the coil falls by its own weight and falls out of the rectangular annular cores 157a and 157b (FIG. 11), the whole process is completed at that time, and if the coil does not fall off by its own weight, The rectangular annular cores 157a and 157b and the coil 156 can be separated by the same method as in the first embodiment (FIGS. 12 to 15).

  Although various embodiments of the present invention have been described above, the present invention is not limited to this. For example, as shown in FIG. 24, in the first embodiment, the blade 7 is moved in the A direction, that is, perpendicular to the annular surfaces 26a, 26b of the annular cores 21a, 21b of the transformer core 20, and The coil 23 is cut by moving perpendicularly to the winding direction. However, when cutting the coil 23, the blade 7 can be moved in the B direction or the C direction in the figure. That is, even if the blade 7 moves obliquely with respect to the annular surfaces 26a and 26b of the annular iron cores 21a and 21b, the coil 23 can be completely cut as in the above embodiment. Further, in this case, by changing the direction of the transformer core 20 without changing the moving direction of the blade 7, as a result, the blade 7 is inclined with respect to the coil 23 of the transformer core 20 (B direction or C direction). ) To cut the coil 23. This configuration can also be applied to the case where all the steps of the transformer core separating method of the present invention are performed by flow work as in the second embodiment (FIG. 16).

  In the first embodiment (FIGS. 2 and 3), the blade 7 moves substantially perpendicular to the winding direction of the coil 23 toward the annular surfaces 26 a and 26 b of the annular cores 21 a and 21 b of the transformer core 20. Thus, the coil 23 was cut, but as shown in FIG. 25, the blade 145 different from the blade 7 of the first embodiment is not parallel to the annular surfaces 26a, 26b of the annular cores 21a, 21b. And you may make it move to the substantially perpendicular | vertical (direction of the arrow of a figure) to the winding direction of the coil 23 along the said annular surfaces 26a and 26b. In this case, as a means for supporting the transformer core 20, the fixed core support 146 a and the movable core support 146 b are used to sandwich the annular surfaces 26 on both sides of the iron core 21 of the transformer core 20 to cut the blade. It is preferable that the transformer core 20, the annular cores 21 a and 21 b, and the coil 23 do not tilt or fall with the lowering of 145. As a means for moving the movable core support 146b, an appropriate means such as a hydraulic cylinder can be used.

  In the transformer coil separation method of the first embodiment, after the coil 23 of the transformer core 20 is cut, the annular cores 21a, 21b and the coil 23 are separated by the coil removing device 40. It is also possible to perform the process performed by the coil removing device 40 manually.

  Further, in the embodiment, the hydraulic cylinder is adopted as means for moving the blades 7, 93, the coil-shaped forming tools 50a, 50b, 104a, 104b, etc., but is not limited thereto, and meshes with the air cylinder or the ball screw. Appropriate moving means such as a combination with a motor equipped with a gear can be adopted, and appropriate means should be used in accordance with the installation location of the transformer coil separation system of the present invention or the circumstances of the user. Can do.

  Alternatively, in the transformer coil separation system of the second embodiment (FIG. 16), the support tool moving means 128 is a combination of two ball screws 132a and 132b and a motor 136 having gears 134a and 134b meshing with the ball screws 132a and 132b. The belt conveyor is installed in place of the horizontal members 122a and 122b, and the transformer core 96 is directly mounted thereon, or the annular surface supports 126a and 126b are mounted on the belt conveyor as in the second embodiment. It may be.

  In the embodiment, as the blades 7, 93, 145, those with both blades are employed, but even when a blade with a single blade is used, the coil can be completely cut in the same manner as described above.

  Further, when the annular cores 21a and 21b and the coil 23 of the transformer core 20 of the first embodiment are separated (FIGS. 14 and 15), the plate-like portion 53 of the coil removing tool 54 is used as a part of the coil 23. As a result of being pushed and moved, the annular cores 21a, 21b and the coil 23 are separated, but the present invention is not limited to this. For example, if the lowering of the plate-like portion 53 of the coil removal tool 54 is stopped halfway and the annular cores 21a and 21b are moved upward, the annular cores 21a and 21b and the coil 23 can be separated. In this case, for example, the pair of core supports 51a and 51b may be raised using appropriate moving means such as a hydraulic cylinder while the annular cores 21a and 21b are supported.

The figure which shows the coil cutting device of 1st Example of this invention. The figure which shows a state when cutting the coil of a transformer core with the blade of a coil cutting device. The figure which shows a state when the coil of a transformer core is cut | disconnected with the blade of a coil cutting device. The figure which shows the structure of the hydraulic control apparatus with which the coil cutting device was equipped. The figure which shows the coil removal apparatus of 1st Example. The figure which shows a state when inserting the thin part of one coil shape molding tool in the cut | interruption of a coil. The figure which shows the state which inserted the thin part of one coil shape molding tool into the cut | interruption of a coil, and made the thin part of the other coil shape molding tool contact the side surface of a coil. The figure which shows a state when moving the thin part of the coil shape molding tool inserted in the cut | interval to the other coil shape molding tool side. The figure which shows the state which deform | transformed one curved part of the coil by moving the thin part of one coil shape molding tool. The figure which shows a state when changing the other curved part similarly after deform | transforming one curved part of the coil of a transformer core. The figure which shows a state when a cyclic | annular iron core and a coil are isolate | separated because a coil falls with dead weight. The figure which shows a state when the thin part of both coil shape molding tools presses a part of coil from the inside, respectively. The figure which shows the state by which a part of coil was expanded after FIG. The figure which shows a state when inserting the coil removal tool of a coil removal apparatus in the clearance gap between both iron cores. The figure which shows a state when pushing in a coil with a coil removal tool. The figure which shows the transformer coil isolation | separation system of 2nd Example. The figure which shows a state when transforming the coil of a transformer core using only one coil shape molding tool with which the coil removal apparatus in the transformer coil separation system of 1st Example was equipped. The figure which shows a state when one curved part of a coil is deformed. The figure which shows a state when deform | transforming both the curved parts of a coil. The figure which shows a state when a coil is pushed out from a cyclic | annular iron core with a pair of rod. The figure which shows the state which pushed the shaping | molding projection part of the coil into opening of each cyclic | annular iron core. The figure which shows a state when cut | disconnecting the coil of the external iron type transformer core of another form. The figure which shows a state when changing the coil of the transformer core of another form with the coil removal apparatus used in 1st Example. The figure which shows the moving direction of the cutter which can cut | disconnect a coil. The figure which shows a state when moving a blade in another direction and cut | disconnecting a coil.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,85 ... Coil cutting device, 2,42 ... Base part, 3a, 3b, 43a, 43b, 43c, 43d, 87a, 87b, 100a, 100b, 100c, 100d ... Vertical frame, 4, 44a, 44b, 44c, 44d, 88, 101a, 101b ... Upper frame, 5, 46a, 46b, 89, 103a, 103b ... Intermediate frame, 7, 93, 145 ... Cutlery, 8, 66a, 66b ... Vertical groove 10, 60a, 60b, 62a , 62b, 63a, 63b, 64a, 64b, 94, 109, 112a, 112b, 114a, 114b, 125a, 125b ... hydraulic cylinder, 11a, 11b ... oil feed pipe, 13 ... piston rod, 14, 77a, 77b ... piston Head 15, blade fixing tool 16, hydraulic control device 17, operation button 18, stop button 20, 6,155 ... transformer core, 21a, 21b, 102a, 102b ... annular core, 22a, 22b, 142a, 142b, 158a, 158b ... opening, 23, 97,156 ... coil, 24 ... conductor, 25a, 25b, 51a , 51b, 146a, 146b ... core support, 26a, 26b, 124a, 124b ... annular surface, 27, 140, 160 ... metal plate, 28, 98 ... cut, 29 ... position sensor, 30 ... tank, 31 ... pump, 32 ... Servo motor, 33 ... Motor driver, 34 ... Pressure detection means, 35 ... Direction control valve, 37 ... Cutting control means, 38a, 38b, 38c, 38d, 150a, 150b, 150c, 150d ... Magnet, 39a, 39, 39c, 39d, 151a, 151b, 151c, 151d ... adjustment knob, 40, 86 ... coil removal Device, 48a, 48b ... thin portion, 50a, 50b, 104a, 104b ... coil-shaped forming tool, 52a, 52b, 106 ... forming tool moving means, 53 ... plate-like portion, 54, 108 ... coil removing tool, 56 ... Remover moving means, 58, 72a, 72b ... groove, 59, 67a, 67b, 76a, 76b, 78 ... rectangular member, 68a, 68b ... cylinder fixing tool, 70a, 70b ... connecting member, 73a, 73b ... horizontal moving member 75a, 75b ... hinge member, 79 ... piston rod fixture, 80a, 80a ... curved portion, 81b, 81a ... molding projection, 82 ... gap, 110 ... frame, 116 ... cylinder fixing member, 120 ... movable core support Tools 122a, 122b ... horizontal members, 126a, 126b ... annular surface support tools, 128 ... support tool moving means, 129a, 129 a ... flat plate, 132a, 132b ... ball screw, 134a, 134b ... gear, 136 ... motor, 153a, 153b ... bar, 159 ... iron plate, 157a, 157b ... rectangular annular core.

Claims (11)

A transformer coil separation method for separating a pair of annular cores constituting an outer iron type transformer core and a coil wound through an opening of each core,
(a) a step of cutting the coil by moving the blade substantially perpendicular to the winding direction of the coil toward the annular surface of the annular core;
(b) separating the annular core and the coil by moving the annular core or the coil so that a part of the annular core passes through the cut of the coil formed in the step (a). A transformer coil separation method characterized by the above.   2. The transformer coil separation method according to claim 1, wherein, in the step (a), the blade is not parallel to the annular surface of the annular iron core and is substantially in the winding direction of the coil along the annular surface. Transformer coil separation method characterized by moving vertically. In the transformer coil separation method according to claim 1 or 2,
(c) After the step (a), the curved portion of the coil protruding from the opening of the annular core and covering the part of the annular surface is pushed from the inside of the cut of the coil to cover the annular surface. Transformer coil separation method characterized by including the process of changing so that it may not exist.   4. The transformer coil separation method according to claim 3, wherein in the step (b), a part of the coil deformed in the step (c) is pushed into the opening of the annular core. Separation method. The transformer coil separation method according to claim 3,
(d) including a step of moving the pair of annular cores away from each other to create a gap between the cores;
In the step (b), a part of the coil located on the opposite side of the cut is pushed from the gap created in the step (d).   6. The transformer coil separation method according to claim 1, wherein the blade is a double-edged blade. A transformer coil separation system for separating a pair of annular cores constituting an outer iron type transformer core and a coil wound through an opening of each core,
A coil cutting device and a coil removing device;
The coil cutting device is
A cutter that cuts the coil in a direction perpendicular to the winding direction;
A core support that supports the annular core, the coil, or the transformer core so that the annular surface of the annular core faces the blade and the blade is substantially perpendicular to the winding direction of the coil;
A blade moving means for moving the blade toward the annular surface when the core support supports the annular core, coil, or transformer core;
The coil removing device is
A coil-shaped forming tool that moves in a predetermined direction and deforms the coil in a state of being inserted into a coil cut cut by the blade;
A core support that supports the annular core, the coil, or the transformer core so that the coil-shaped forming tool and the annular surface of the annular core face each other;
When the core support supports the annular core, coil, or transformer core, the coil-shaped forming tool is inserted into the cut, and the coil protrudes from the opening of the annular core and covers a part of the annular surface. A molding tool moving means for deforming the curved portion of the cut from the inside of the cut so as not to cover the annular surface;
A coil remover that can be inserted into the opening of the annular core, moves in a predetermined direction, and removes the coil from the annular core;
A transformer coil separation system comprising: a removal tool moving means for moving the coil removal tool so as to push a part of the coil protruding from the opening into the opening.   8. The transformer coil separation system according to claim 7, wherein the coil-shaped forming tool is provided in a pair, and the forming tool moving means is formed from an opening of each annular core so that a gap is formed between the pair of annular cores. The pair of coil-shaped forming tools are moved so as to push part of the pair of protruding coils in a direction away from each other, and the detaching tool moving means inserts the coil detaching tool into the gap and opposes the cut. A transformer coil separation system, wherein a part of a coil located on a side is pushed in.   The transformer coil separation system according to claim 7 or 8, wherein the coil cutting device and the coil removing device are installed side by side, and instead of the core support provided in each device, the annular iron core, the coil, or A transformer coil separation system comprising: a movable core support that moves the transformer core from the coil cutting device side to the coil removing device side in a state where the transformer core is supported. The transformer coil separation system according to claim 9,
The movable core support is
A pair of horizontal members installed from the coil cutting device side to the coil removing device side;
An annular surface support that supports one annular surface of the annular iron core from below on both sides of the coil, and is movable on the horizontal member;
A transformer coil separation system comprising: a support moving means for moving the annular surface support from the coil cutting device side toward the coil removal device side on the horizontal member. The transformer coil separation system of claim 10,
The support moving means is
One end is fixed to the annular surface support so as to be parallel to the horizontal member, and at least a ball screw longer than a distance from the coil cutting device to the coil removing device,
A transformer coil separation system comprising a motor having a gear meshing with the ball screw.

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