JP2005277234A - Wound-core manufacturing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wound-core manufacturing apparatus whereby a plural kinds of wound cores having different capacities from each other can be manufactured simply without generating the excess and deficiency of the cut length of the core material, and further, even when a winding fault is generated in the course of winding the core material around the wound core, the rewinding of the core material can be performed easily. <P>SOLUTION: A cut-length setting means has constitutively such a laterally long circular drum coupled in a cooperate-able way to the reel wound by a core material as to drive and rotate it at an equal speed, first and second sensing means for sensing a sensed object provided on the outer peripheral surface of the drum in the form capable of setting the cut lengths of the core materials wound around the reel having miscellaneous sizes, and a cut-command outputting means for outputting a cut command to a cutting device based on the signals outputted from the first and second sensing means. The wound-core manufacturing apparatus is so constituted as to set the cut length of the core material wound around the drum by this cut-length setting means. Also, the reel and the drum can be moved in a body in a predetermined direction by a moving means, and further, the wound-core manufacturing apparatus is so constituted as to change properly in response to the movements of the reel and the drum the opposite portions of the first and second sensing means to the sensed object provided on the outer peripheral surface of the drum. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for manufacturing a one-turn cut type wound core used for a distribution transformer or the like.

  Conventionally, a one-turn cut type wound core has been widely used for a distribution transformer having a capacity of up to about 100 kVA. As an apparatus for manufacturing the one-turn cut type wound core, for example, a winding belt driven by a motor and a winding core driven by the winding belt, and a rewinding from an uncoiler. Feeding means for feeding a core material such as a silicon steel strip to a material winding position of the core winding device, a cutting length calculating means for calculating a cutting length of the core material, and the feeding means And a cutting device that cuts the iron core material fed by the cutting length previously calculated by the cutting length calculation means.

And when manufacturing a wound core using the said wound core manufacturing apparatus, the core material of the innermost periphery (1st sheet | seat) in the said wound core is the cutting length initial value memorize | stored previously in the said cutting length calculating means The second and subsequent iron core materials are cut at L ₁ (the outer peripheral length of the winding frame), and the cutting length calculation means uses L _n = L _n-1 + 2πt (L _n is the nth iron core material). The cutting length of Ln _-1 , Ln _-1 is the cutting length of the (n-1) th core material (where n ≧ 2), and t is the thickness of the core material). A wound core is manufactured with a predetermined winding thickness by cutting the core material that has been cut into lengths, and sequentially winding the cut core material around a winding frame of an iron core winding device. In addition, since there are many cases where a thickness deviation occurs in the iron core material, the thickness of the iron core material is measured by a sensor to calculate the deviation, and the cutting length of the iron core material is calculated after taking this deviation into account. It is made to process (for example, refer patent document 1).

JP-A-7-335466

  However, when a plurality of types (for example, 10 kVA to 100 kVA) of wound cores having different capacities are manufactured in the wound core manufacturing apparatus having the above-described configuration, only a reel is required for each volume of the wound core to be manufactured. Alternatively, the cutting length calculation program provided in the cutting length calculation means is set for each volume of the wound core, or the initial cutting length is calculated in advance for each volume of the winding core and stored in the cutting length calculation means. It was very cumbersome because I had to keep it. In addition, the cutting length calculation program provided in the cutting length calculation means and the size (diameter dimension) of the reel, or the initial cutting length value stored in the cutting length calculation means and the size of the reel (diameter). If the dimensions are inconsistent due to unforeseen circumstances, it may be difficult to obtain a wound core with good characteristics due to excessive or insufficient cutting length of the core material.

  In the wound core manufacturing apparatus having the above-described configuration, the thickness of the core material is measured by a sensor, and a thickness deviation is obtained from the measurement result to correct the cutting length of the core material. The plate thickness is measured in the vicinity of the center of the iron core material in the width direction, and the burrs generated at the end of the iron core material in the width direction are not measured. As a result, there is a problem in that the shortage of the cutting length becomes noticeable particularly when a wound core having a large capacity is manufactured.

  Further, for example, when a winding breakage occurs in the middle of the wound core (a state where the winding is not normally wound), the core material is rewound up to the portion where the winding breakage occurs, When about 1 to 10 sheets) are extracted from the wound core and rewinding is performed after the portion where the winding breakage occurs, the core length is cut by the cutting length calculation means in the wound core manufacturing apparatus having the above configuration. Since the length is processed, it is difficult to know how many core materials should be rewound. As a result, it is difficult to rewind the core material, resulting in winding damage. The wound core had to be disposed of.

  In view of the above-mentioned various problems, the present invention can easily manufacture a plurality of types of wound cores having different capacities without causing excess or deficiency in the cutting length of the core material, and in the middle of the wound core. An object of the present invention is to provide a wound core manufacturing apparatus that can be easily rewound even when winding breakage occurs.

  In order to solve the various problems described above, the invention according to claim 1 is directed to a specific example in which the iron core material unwound from the uncoiler and fed to the material winding position of the iron core winding device by the feeding means is predetermined by the cutting device. In addition to cutting into length dimensions, the core material cut into the predetermined length dimensions is sequentially wound around a winding frame provided in the iron core winding device to produce a wound core of a predetermined size. In a wound core manufacturing apparatus, a horizontally long circular drum that is connected to the reel so as to be capable of cooperating with the reel and is driven to rotate at a constant speed, and an iron core material wound around a reel of various sizes on the outer peripheral surface of the drum The first and second detection means for detecting the detected object provided in a shape in which the cutting length can be set, and a cutting command to the cutting device based on the detection signals output from the first and second detection means Cutting command output means for outputting a cutting length By the constant unit, characterized by being adapted to set the cutting length of the core material.

  The invention according to claim 2 is the wound iron core manufacturing apparatus according to claim 1, wherein the winding frame and the drum are provided in a movable state along a guide member provided on a device base of the iron core winding device. As the core material is wound around the winding frame or the size of the winding frame is changed, the winding frame and the drum are integrally moved in a predetermined direction as appropriate. And the first and second detection means for detecting the detection target provided on the outer peripheral surface of the drum are opposed to the outer peripheral surface of the drum on the apparatus base on one end side in the length direction of the drum. It is characterized in that it is fixed and installed so that it cannot move in a state where

  According to a third aspect of the present invention, there is provided the wound core manufacturing apparatus according to the first or second aspect, wherein the first and second detection means are configured such that the drum and the drum move as the drum and the drum move together. The part facing the object to be detected provided on the outer peripheral surface is appropriately changed.

  According to a fourth aspect of the present invention, there is provided the wound core manufacturing apparatus according to any one of the first to third aspects, wherein the detected object has a relatively steep slope at one end side in the length direction of the drum, and the length of the drum. It is characterized by being provided in a shape that becomes relatively gentle as it goes to the other end side in the vertical direction.

  According to a fifth aspect of the present invention, in the wound core manufacturing apparatus according to any one of the first to fourth aspects, the drum is made of synthetic resin, the detected body is made of metal, and the first and second detection means are made of proximity sensors. It is characterized by.

  According to the first aspect of the present invention, a horizontally long circular drum that is connected to a winding frame around which the iron core material is wound and is driven to rotate at a constant speed, and various sizes of outer peripheral surfaces of the drum. Output from the first and second detection means and the first and second detection means for detecting the detected object provided in a shape capable of setting the cutting length of the iron core material wound around the reel. Based on the detection signal, the cutting length of the iron core material wound around the winding frame is set by the cutting length setting means including cutting command output means for outputting a cutting command to the cutting device. As in the prior art, it is possible to easily manufacture the wound core without calculating the cutting length of the iron core material by the cutting length calculation means. In addition, if there is one drum provided with the detected body on the outer peripheral surface, it is possible to set the cutting length of the iron core material to be wound around the winding frames of various sizes, and to manufacture a wound iron core having a predetermined capacity. Therefore, unlike the conventional case, it is not necessary to set a cutting length calculation program for each volume of the wound core, or to store the initial value of the cutting length for each volume of the wound core, which is very convenient. .

  According to invention of Claim 2, since the said winding frame and drum can be moved integrally by the moving means which moves along the guide member provided in the apparatus base of an iron core winding apparatus, Each time the core material is wound around the winding frame, the drum reduces the thickness of the core material (the thickness deviation generated in the core material and the error of the burrs generated at the end in the width direction of the core material. In other words, the object to be detected provided on the outer peripheral surface after the movement of the drum is moved by the first and second detection means. By detecting, the cutting length of the iron core material can be set longer by the thickness of the iron core material (including the thickness deviation and the error of the burr), and as a result, the error of the burr is corrected. Core material by accumulating without being It can be reliably prevented from missing the cut length occurs.

  According to the third aspect of the present invention, the first and second detection means are configured such that the portion facing the detected body provided on the outer peripheral surface of the drum moves as the reel and the drum move integrally. When the drum moves in a predetermined direction along with changing (replacement) the size of the reel, the object to be detected provided on the outer peripheral surface of the drum and the device base are fixed and installed. Since the portions facing the first and second detection means are appropriately changed (variable), the first and second detection means are always cut (cut) length of the iron core material wound around the changed (replaced) reel. The object to be detected provided with a shape (inclination angle) suitable for setting is detected, the cutting device is activated by the cutting command output from the cutting command output means in response to this detection signal, and the core material is cut As a result, the cutting length calculation program and Due to the discrepancy between the frame size (diameter dimension) or the initial cutting length and the reel size (diameter dimension), it is possible to reliably prevent the cutting length of the iron core material from becoming excessive and insufficient. A good wound core can be manufactured.

  Further, as described above, when the reel and the drum move integrally, the object to be detected provided on the outer peripheral surface thereof is opposed to the first and second detection means fixed and installed on the apparatus base. Since the part changes (variable) as appropriate, for example, a winding breakage occurs in the middle of the wound core, and the iron core material is removed even when the core material is removed from the part where the winding breakage occurs and rewinded. The reel and the drum move to the material winding position side of the iron core winding device and start the rewinding provided on the outer peripheral surface of the drum. The object to be detected having a shape (tilt) suitable for setting the cutting length of the iron core material at the site to be placed is opposed to the first and second detection means, and output from the first and second detection means. Based on the detection signal of the detected object, from the cutting command output means A cutting command is output to the cutting device to cut the iron core material, and the cut iron core material can be sequentially wound from the rewinding position. As a result, the iron core material from the part where the winding breakage occurs can be wound. The rewinding work can be performed satisfactorily, and the number of wound cores that had to be disposed of as a defective product due to the occurrence of winding damage can be reliably reduced.

  According to a fourth aspect of the present invention, the object to be detected has a shape that has a relatively steep slope on one end side of the drum and a relatively gentle slope toward the other end side of the drum. If the cutting length increase rate is large as in the case of the iron core material wound on the small diameter reel, the first and second detection portions and the first and second detection portions are relatively steep. When the increase rate of the cutting length is small as in the case of an iron core material wound on a winding frame having a large diameter and facing the means, a relatively gently inclined portion of the object to be detected and the first and second detections By facing the means, the iron core material is wound on the reel regardless of the size of the reel from a small diameter reel to a large diameter reel. Each time it is wound, the cutting length of the iron core material is increased in order by the thickness (2πt) of the iron core material. It is possible to set longer, the result can be reliably prevented from excess and deficiency in the cut length of the core material occurs.

  According to the fifth aspect of the present invention, the drum is made of synthetic resin, the object to be detected is made of metal, and the first and second detection means are made of proximity sensors. Even in such a case, since the first and second detection means detect only the metal detection object and do not erroneously detect the dirt or the like, the first and second detection means However, by erroneously detecting dirt or the like, it is possible to reliably prevent the occurrence of problems such as excessive or insufficient cutting length of the iron core material. In addition, since the first and second detection means can detect the detection object in a non-contact manner, the detection object is repeatedly detected over a long period of time by the first and second detection means. In addition, it is possible to prevent the first and second detection means from being deteriorated or damaged at an early stage.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to FIGS. First, FIG. 1 is a schematic configuration diagram showing a wound core manufacturing apparatus 1 according to the present invention. As shown in FIG. 1, the wound core manufacturing apparatus 1 feeds a core material 3 such as a silicon steel strip unwound from the uncoiler 2 to a material winding position 4 a of the core winding device 4. And a cutting length setting means 6 for setting a cutting length of the iron core material 3, and a core material that is disposed between the iron core winding device 4 and the feeding means 5 and fed by the feeding means 5. 3 is provided with a cutting device 7 for cutting with a cutting length set by the cutting length setting means 6.

  It continues and each component 4-7 in the said wound core manufacturing apparatus 1 is demonstrated. First, as shown in FIG. 1, the iron core winding device 4 stands on a circular winding frame 8 (8 a) around which the iron core material 3 is wound and a device base 4 b (see FIG. 3). A plurality of guide rollers 9a to 9g, an endless winding belt 10 installed on the winding frame 8 (8a) and the guide rollers 9a to 9g, and any one of the plurality of guide rollers 9a to 9g. A belt drive motor 11 that is drivably connected to the guide roller 9f and a cylinder device 12 that applies a predetermined tension (biasing force) to the winding belt 10 are provided. In addition, the iron core material 3 cut by the cutting device 7 with a predetermined cutting length is wound between the winding frame 8 (8a) and the winding belt 10 from the material winding position 4a. Material 3 around the reel 8 (8a) And sequentially wound to form a wound core A of a predetermined winding thickness dimension.

  Further, as shown in FIGS. 2 to 5, the iron core winding device 4 has a predetermined direction (FIGS. 2 to 5) in which the winding frame 8 (8a) is integrated with a drum 21 of a cutting length setting means 6 described later. Moving means 13 for moving in the right and left direction). The moving means 13 rotates in a vertical state via a movable carriage 15 that moves along a pair of upper and lower guide members 14a and 14b provided on the apparatus base 4b, and a bearing member (not shown). The reel 8 (8a) is freely supported, and the size (diameter dimension) of the reel 8 (8a) is changed (that is, replaced) to the upper end side of the rotary shaft 16 as necessary. It is attached so that it can be detached.

  The movable carriage 15 has the cylinder device 12 (FIG. 1) as the core material 3 is sequentially wound around the winding frame 8 (8a) (that is, the winding thickness of the wound core A increases). The direction of moving away from the material entrainment position 4a by a distance corresponding to the plate thickness of the iron core material 3 (including the plate thickness deviation and the burrs generated at the end in the width direction) against the urging force by the reference) Move to the left (FIGS. 2 and 3). The movable carriage 15 is also moved by changing the size (diameter dimension) of the reel 8 (8a) attached to the rotary shaft 16 (that is, exchanging the reel 8 (8a)). For example, when the reel 8 having a small diameter shown in FIGS. 2 and 3 is replaced with the reel 8a having a large diameter shown in FIGS. 4 and 5, the direction away from the material winding position 4a (FIG. 2). , 3 to the left), and conversely, when the reel 8a having a large diameter shown in FIGS. 4 and 5 is replaced with the reel 8 having a small diameter shown in FIGS. It moves in the direction approaching the position 4a (the right direction in FIGS. 4 and 5). The winding frame 8 (8a) has a guide roller 9a disposed in the vicinity of the material winding position 4a, as shown in FIGS. 2 and 4, before the core material 3 is wound around the winding frame 8 (8a). , 9g.

  Subsequently, as shown in FIG. 1, the feeding means 5 is connected to the belt drive motor 11 of the iron core winding device 4 so as to be drivable via a continuously variable transmission 17, and the moving speed of the winding belt 10 is A feeding roller 18 that rotates at a high speed, and a pressing roller 20 that is rotatably attached to a piston tip of a cylinder device 19 that is disposed in a state of facing the feeding roller 18 are configured. A gap is formed between the feeding roller 18 and the pressing roller 20 so as to allow the core material 3 to be inserted. When the cylinder device 19 is activated and the pressing roller 20 is biased toward the feeding roller 18, the iron core material 3 is sandwiched between the feeding roller 18 and the pressing roller 20. 3 is fed to the material winding position 4 a of the iron core winding device 4 using the rotational force transmitted from the belt drive motor 11 to the feeding roller 18. Conversely, when the urging of the pressing roller 20 toward the feeding roller 18 is released, the holding of the iron core material 3 between the feeding roller 18 and the pressing roller 20 is released, and the feeding roller 18. As a result, the feeding of the iron core material 3 to the material winding position 4a of the iron core winding device 4 is stopped.

Next, as shown in FIGS. 1 to 5, the cutting length setting means 6 is a horizontally long circular shape that is connected to the winding frame 8 (8 a) of the iron core winding device 4 so as to be capable of cooperating with each other and rotates at a constant speed. By detecting the drum 21 and the detected object 22 provided in a shape in which the cutting length of the iron core material 3 wound around the reel 8 (8a) of various sizes can be set on the outer peripheral surface of the drum 21; The first detection means 23 for setting the formation start position S of the joints a ₁ , a ₂ ,... In the wound iron core A and the joints a ₁ , .., a _second driving means 24 for setting the formation end position E of a ₂ ,... and a shear drive of the cutting device 7 to be described later based on detection signals output from the first and second detecting means 23, 24. A cutting command output means 27 for outputting a cutting command to the motor 33 is provided. It has been.

  As shown in FIGS. 2 to 5, the drum 21 is rotatably supported in a horizontal state on the moving carriage 15 of the moving means 13 provided in the iron core winding device 4 via support members 28a and 28b. One end side (the right side in FIGS. 2 to 5) of the drum 21 is provided with a plurality of bevel gears 29a on a rotary shaft 16 that is provided on the movable carriage 15 and to which the reel 8 (8a) is detachably attached. , 29b, 30a, 30b and the connecting shaft 31. Thereby, the rotation of the winding frame 8 (8a) is transmitted to the drum 21 via the rotation shaft 16, the bevel gears 29a and 29b, the connecting shaft 31, and the bevel gears 30a and 30b. 8a) and can be rotated at the same speed (that is, when the reel 8 makes one revolution, the drum 21 also makes one revolution). Further, as described above, the movable carriage 15 that rotatably supports the drum 21 has the iron core material 3 sequentially wound around the reel 8 (8a), or the reel attached to the rotary shaft 16. When the size (diameter dimension) of 8 (8a) is changed (replaced), the drum 21 moves in a predetermined direction (left and right direction in FIGS. 2 to 5), whereby the drum 21 is moved to the reel 8 (8a). ) In the same direction as the movement direction of the movable carriage 15.

  On the other hand, the first and second detection means 23 and 24 for detecting the detected object 22 provided on the outer peripheral surface of the drum 21 are the other end side of the drum 21 moving integrally with the reel 8 (8a) ( 2 to 5), the drum 21 is fixed and installed on the device base 4 b of the iron core winding device 4 through the mounting seat 32 so as to face the outer peripheral surface of the drum 21. Accordingly, the iron core material 3 is sequentially wound around the reel 8 (8a), or the size (diameter dimension) of the reel 8 (8a) is changed (replaced). When the reel 8 (8a) and the drum 21 are integrally moved along the guide members 14a and 14b provided on the apparatus base 4b, the first and second detection means 23 and 24 and the drum 21 are moved. The part facing the outer peripheral surface changes as appropriate. That is, the first and second detection means 23 and 24, for example, when using the winding frame 8 having a small diameter shown in FIGS. 2 and 3, the other end side in the length direction of the drum 21 (FIG. 2). 4, the outer peripheral surface of the drum 21 in the longitudinal direction (that is, the radial dimension) in the case where the reel 8a having a large radial dimension shown in FIGS. To the right side of the case where the smaller reel 8 is used. When the drum 21 moves to the left in FIGS. 2 to 5 as the iron core material 3 is sequentially wound around the winding frame 8 (8a), the first and second detection means 23, 24 opposes the outer peripheral surface of the drum 21 at a portion shifted to the right by a distance corresponding to the plate thickness of the iron core material 3 from a portion facing before the iron core material 3 is wound.

  Further, as shown in FIGS. 2 and 4, the detected object 22 provided on the outer peripheral surface of the drum 21 is relatively, for example, on the other end side in the length direction of the drum 21 (left side in FIGS. 2 and 4). It has a steep slope and is provided with a shape (curved downwardly to the right) that becomes relatively gentle as it goes toward one end in the length direction of the drum 21 (the right side in FIGS. 2 and 4). This is because the core material 3 is wound around the winding frame 8 (8a) regardless of the size (diameter dimension) of the winding core 8 (8a). This is because the cutting length of the iron core material 3 can be set so as to be sequentially increased by the thickness (2πt) of the iron core material 3 every time. That is, when manufacturing the wound iron core A using the reel 8 having a small diameter size, the portion where the first and second detection means 23 and 24 are opposed to each other (the other end of the drum 21 (the left side in FIGS. 2 and 3)). Since the rate of increase in the cutting length of the iron core material 3 wound around the winding frame 8 is large, the detection object 22 on the side) has a long detection interval by the first and second detection means 23, 24. In contrast, when the wound iron core A is manufactured using the winding frame 8a having a large diameter, the first and second detection means 23 and 24 are opposed to each other. The object 22 to be detected (substantially in the center of the drum 21) has a small increase rate of the cutting length of the iron core material 3 wound around the winding frame 8a. It is provided in a relatively gentle state so that the interval becomes slightly longer.

Further, when the cutting command output means 27 cuts the first core material 3a in each core block constituting the wound core A, the first detection means 23 detects the detected object 22 at the time. When a cutting command is output to the shear drive motor 33 of the cutting device 7 and the second and subsequent iron core materials 3b, 3c,... Are cut, the joint portions a ₁ , a ₂ , 7 is formed in a state shifted in a stepwise manner in the clockwise direction in FIG. 7, after the first detection means 23 detects the detected object 22, a predetermined time (for example, formation of the iron core material 3 shown in FIG. 7). The time required to move a distance corresponding to the pitch dimension from the start position S to each joint a ₂ , a ₃ ,...) When the time t ₁ , t ₂ ,. 33 is configured to output a disconnection command to 33. Further, the cutting command output means 27 is configured so that the shear drive motor of the cutting device 7 is formed so that when the position of the joint portion in the wound core A reaches the formation end position E, the next joint portion is formed again from the formation start position S. 33 is configured to output a disconnection command to 33.

  The drum 21 is made of, for example, a thermosetting synthetic resin, and the detected body 22 is made of, for example, a metal such as stainless steel. The two detection means 23 and 24 are constituted by proximity sensors, for example. Further, the cutting command output means 27 is, for example, a means for outputting a driving command to the belt drive motor 11 of the iron core winding device 4 to a control device (not shown) and a drive to the cylinder device 19 of the feeding means 6. It is incorporated with a means for outputting commands.

  Subsequently, as shown in FIG. 1, the cutting device 7 includes, for example, a pair of shears 34 a and 34 b which are made of a flying shear or the like and are operated by the rotational drive of the shear drive motor 33. An iron core material 3 fed to the iron core winding device 4 by the feeding means 5 is inserted between the pair of shears 34a and 34b. The shear drive motor 33 is activated based on the cutting command output from the cutting command output means 27 of the cutting length setting means 6 to move the shears 34a and 34b at the same speed as the iron core material 3, and the cutting length The core material 3 fed to the core winding device 4 by the feeding means 5 is stopped by moving one of the shears 34a toward the other shear 34b at the cutting position set by the setting means 6. It is configured to cut without.

  Next, a case where a one-turn cut type wound core A is manufactured by the wound core manufacturing apparatus 1 according to the present invention will be described with reference to FIGS. 1 to 3 and FIGS. Here, the case where the wound iron core A is manufactured using the reel 8 having a small diameter shown in FIGS. First, the case where the first core material 3a in the first core block constituting the wound core A is wound around the winding frame 8 will be described. When the first core material 3a in the first core block is wound around the winding frame 8, the belt drive motor 11 of the core winding device 4 is activated and the rotational force is guided to the guide roller 9f → This is transmitted to the winding frame 8 via the winding belt 10, and the winding frame 8 is rotated at a predetermined rotational speed. At the same time, the winding frame 8 and the rotary shaft 16, the bevel gears 29 a, 29 b, 30 a, 30 b and the connecting shaft 31 are rotated. The drum 21 of the cutting length setting means 6 that can be co-rotated via (see FIG. 2) is rotated at the same speed as the reel 8 (see 11 in FIG. 6).

Further, after a predetermined time t ₀ has elapsed from the start of the belt drive motor 11, the cylinder device 19 of the feeding means 5 is started, and the pressing roller 20 attached to the piston tip is urged toward the feeding roller 18 side. Then, the iron core material 3 unwound from the uncoiler 2 is sandwiched between the feeding roller 18 and the pressing roller 20 (see 19 in FIG. 6). At this time, since the feeding roller 18 is drivably connected to the belt drive motor 11 via the continuously variable transmission 17, the iron core material sandwiched between the feeding roller 18 and the pressing roller 20 is used. 3 is one sheet in the first core block that is fed to the iron core winding device 4 side using the rotational force transmitted from the belt drive motor 11 to the feed roller 18 and is the innermost circumference of the wound iron core A. It is wound around the reel 8 as the iron core material 3a.

The predetermined time t ₀ is a pulse signal output from the third detection means 25 comprising a rotary encoder or the like for detecting the amount of movement of the winding belt 10 (the amount of rotation of the winding frame 8) shown in FIG. Is set based on the time until reaching the value corresponding to the movement of the winding belt 10 by a predetermined distance (dimension) by the activation of the belt drive motor 11, or in a control device (not shown). It may be set by the provided timer means or the like.

Subsequently, the detected body 22 provided on the outer peripheral surface of the drum 21 is detected by the first detection means 23 while the first core material 3 a in the first core block is being wound around the winding frame 8. (Refer to point _k1-1 in FIG. 6) At the same time, the cutting command output means 27 outputs a cutting command to the shear driving motor 33 of the cutting device 7, thereby starting the shear driving motor 33. The shears 34a and 34b are operated, and the iron core material 3 is cut while being fed to the iron core winding device 4 side (see 23 and 33 in FIG. 6). The first core material 3a cut by the cutting device 7 has already been wound between the winding frame 8 and the winding belt 10 on the winding start end side. It is wound around the reel 8 sequentially.

  Next, the case where the 2nd core material 3b in a 1st core block is wound is demonstrated. The second core material 3b is wound almost simultaneously with the end of winding of the first core material 3a cut by the cutting device 7 between the winding frame 8 and the winding belt 10. The starting end is wound between the winding frame 8 and the winding belt 10 and wound around the outside of the first iron core material 3a.

When the detected body 22 provided on the outer peripheral surface of the drum 21 is detected by the first detection means 23 during the winding of the second iron core material 3b (see the point _k1-2 in FIG. 6). By outputting a cutting command from the cutting command output means 27 to the shear drive motor 33 of the cutting device 7 after a predetermined time t ₁ has elapsed since the detection of the detected object 22 by the first detecting means 23, The shear drive motor 33 is activated to operate the shears 34a and 34b, and the second core material 3b is cut while being fed to the core winding device 4 side (see 23 and 33 in FIG. 6).

  At this time, since the first core material 3a is already wound around the winding frame 8, it is supported by the moving carriage 15 of the moving means 13 in a state where it can rotate together with the winding frame 8. The drum 21 is moved integrally with the winding frame 8 to the left in FIGS. 2 and 3 by a distance corresponding to the thickness of the first iron core material 3a (including thickness deviation and error of burr). doing. Therefore, the first detection means 23 fixed and installed on the apparatus base 4b in a state of facing the outer peripheral surface of the drum 21 causes the detected object 22 provided on the outer peripheral surface of the drum 21 to be detected from the previous detection position. Is detected at the lower right position. As a result, the time from when the first detection means 23 detects the detected object 22 last time until the first detection means 23 detects the detected object 22 this time ( (Detection interval) becomes longer. Further, since the first core material 3a is wound around the reel 8, the time required for the reel 8 to make one rotation is the previous time (the first core material 3a is wound). Slightly longer than before). As described above, since the first core material 3a is wound around the winding frame 8, the detection interval of the detected body 22 by the first detection means 23 is increased, and the winding frame 8 is rotated once. When the time required to do so becomes longer, the first time the reel 8 is rotated once after the first core material 3a is cut (that is, after the first core material 3a is cut, the first core material 3a is cut again). The length of the second iron core material 3b at the time when the detecting means 23 detects the detected object 22) is longer than the cut length of the first iron core material 3a. It is set longer by the plate thickness (2πt). This is all set according to the shape (inclination) of the detection object 22 at the part facing the first and second detection means 23, 24.

Furthermore, in the present invention, the joint portion a ₂ between the second core material 3b and the third core material 3c is used as the joint portion a ₂ between the first core material 3a and the second core material 3b. _{From the time when the first} detection means 23 detects the detected object 22 in order to form a position shifted by a predetermined dimension P in the clockwise direction in FIG. Since a cutting command is output to the shear drive motor 33 of the cutting device 7 after the predetermined time t ₁ has elapsed to cut the iron core material 3, the second iron core material 3b has a cutting length of 1 It is cut in a state where it is longer than the cutting length of the first iron core material 3a by the thickness (2πt) of the first iron core material 3a + the dimension P between the joints a ₁ and a ₂ .

The predetermined time t ₁ is a pulse corresponding to the amount of movement of the winding belt 10 (the amount of rotation of the winding frame 8) output from the third detecting means 25 such as a rotary encoder shown in FIG. If the count value of the signal is set based on, for example, the time until the winding belt 10 reaches a numerical value corresponding to a distance corresponding to the pitch dimension from the formation start position S to the joint portion a _2. (Hereinafter, the same applies to the setting of the predetermined times t ₂ , t ₃ ,... In FIG. 6).

The second sheet of the core material 3b in the first core block is cut by the cutting device 7, when wound around the outer side of the first sheet of the core material 3a, the position of the joint a _2, which initially From the position of the joint part a ₁ (position matching the formation start position S), the position is moved in the clockwise direction in FIG.

In the same manner as described above, when the third and subsequent iron core materials 3c,... In the first iron core block are sequentially cut and wound, the joint portions a ₁ , a ₂ ,. As shown in FIG. 7, it can be formed in a state shifted in a stepwise manner in the clockwise direction with the formation start position S as a reference.

Incidentally, as shown in Figure 6, before the predetermined time t ₃ from the detection of the first detecting means 23 by the detected body 22 has elapsed, the detected body 22 is detected by the second detecting means 24 ( FIG Referring k _2-4 points 6), reference since (Figure 7 would have reached the position forming the end position E of the joint (a _4)), cut command output when the predetermined time t ₃ has elapsed By outputting a cutting command from the means 27 to the shear drive motor 33 of the cutting device 7, the iron core material 3 currently fed to the iron core winding device 4 is moved to the outermost periphery of the first iron core block (the present invention). Is cut as a fourth core material 3d and wound around the third core material 3c (see 23, 24 and 33 in FIG. 6).

Further, after the outermost (fourth) core material 3d of the first core block is cut, the first detection means 23 detects the detected object 22 (see the point _{k1-5 in} FIG. 6). ), A cutting command is output from the cutting command output means 27 to the shear drive motor 33 of the cutting device 7, whereby the iron core material 3d on the outermost periphery (fourth) of the first core block is followed by the iron core. The core material 3 fed to the winding device 4 is cut as a core material 3a of the innermost circumference (first sheet) in the second core block with a cutting length of less than one circumference, and the first core block Is wound around the outermost (fourth) core material 3d (see 23 and 33 in FIG. 6). As a result, the cutting position (joining part a ₅ ) of the first core material 3a in the second iron core block is returned to a position that coincides with the formation start position S (that is, the joining position is the formation end position E). After reaching (2), the joint is formed again from the formation start position S). For the operation of cutting and winding the second and subsequent core materials 3b, 3c,... In the second core block, the second and subsequent core materials 3b, 3c,. Since it is the same as the case where it cut | disconnects and winds, description is abbreviate | omitted.

As described above, the iron core material 3 is cut at the cutting length set by the cutting length setting means 6, and the reels 8 are sequentially moved while shifting the joint portions a ₁ , a ₂ ,... When the winding thickness dimension of the iron core material 3 wound around the winding frame 8 (that is, the winding thickness dimension of the winding core A) reaches a set value, the cutting command output means 27 sends the cutting device 7 A cutting command is output to the shear drive motor 33, and the core material 3 that is currently being wound is cut as the outermost core material 3n in the wound core A. At the same time, the cylinder device 19 of the feeding means 5 is started, the holding of the iron core material 3 by the feeding and pressing rollers 18 and 20 is released, and the feeding of the subsequent iron core material 3 is stopped. Then, after the outermost core material 3n in the wound core A is cut, a predetermined time t _n (for example, after the outermost core material 3n in the wound core A is cut, the end of winding of the iron core material 3n). When the time required until the wire is wound between the winding frame 8 and the winding belt 10 elapses, the belt drive motor 11 of the iron core winding device 4 is stopped, and the production of the winding core A is finished (FIG. 6). 11, 19, 33).

The determination as to whether or not the winding thickness dimension of the wound iron core A has reached the set value is, for example, a fourth arrangement arranged on the movable carriage 15 so as to face one end side of the drum 21 shown in FIGS. Until the detection means 26 detects that the drum 21 has made one rotation, a count value of a pulse signal corresponding to the moving amount of the winding belt 10 output from the third detection means 25 is preset. (E.g., when the count value of the pulse signal output from the third detection means 25 reaches a preset numerical value while the drum 21 rotates once). In addition, it is determined that the winding thickness dimension of the wound core A has reached the set value). The predetermined time t _n may be set by a timer means provided in a control device (not shown), for example.

  Next, a case will be described in which the size of the winding frame is changed (exchanged) and a wound core having a size different from that of the wound core that has been manufactured so far is manufactured. In the present invention, the reel 8 (8a) and the drum 21 can be moved integrally by the moving means 13, and the iron core material 3 is wound around the reel 8 (8a). In the previous stage, the guide rollers 9a and 9g that are in contact with the reel 8 (8a) are erected on the apparatus base 4b so as not to move, so that the reel having a small diameter shown in FIGS. When the reel 8 is replaced with the reel 8a having a large diameter shown in FIGS. 4 and 5, the movable carriage 15 having the rotary shaft 16 to which the reels 8 and 8a are attached comes into contact with the guide rollers 9a and 9g. Due to the larger diameter dimension of the reel 8a (difference in the diameter of the reels 8, 8a), it moves a predetermined distance to the left in FIGS. 2 and 3 than when the reel 8 with a smaller diameter is attached. As a result, it moves integrally with the reel 8 (8a). That the drum 21 is also inevitably moves to the same direction as the moving direction of the movable carriage 15. As a result, when the reel 8 having a small diameter is attached to the rotary shaft 16, it opposes the outer peripheral surface of the drum 21 on the other end side in the longitudinal direction of the drum 21 (left side in FIGS. 2 and 3). As shown in FIGS. 4 and 5, the first and second detection means 23 and 24 that have been arranged are opposed to the outer peripheral surface of the drum 21 at substantially the center in the length direction of the drum 21.

  When the large diameter reel 8a is attached to the rotary shaft 16, the outer circumference of the drum 21 facing the first and second detection means 23, 24 is wound around the large diameter reel 8a. Since the detected object 22 is provided in a shape suitable for setting the cutting length of the rotating iron core material 3 (that is, a relatively gentle inclination shown in FIG. 4), the first and second detecting means 23, 24, a cutting command is output from the cutting command output means 27 to the shear drive motor 33 of the cutting device 7 based on the detection signal of the detected object 22 by the iron 24, so that the iron core material is supplied to the reel 8 having a small diameter. As in the case of winding 3, the cutting length of the iron core material 3 is set to be equal to the sheet thickness (2πt) of the iron core material 3 + a predetermined dimension P (each iron core block) than the already wound iron core material 3. (Excluding the first iron core material 3a) , By sequentially winding the large spool 8a of diameter, it is possible to produce a wound core A at a predetermined winding thickness dimension. The detailed operation when winding the iron core material 3 around the reel 8 having a large diameter is the same as that when the iron core 3 is wound around the reel 8 having a small diameter. The description is omitted.

  Next, when the winding of the iron core material 3 is occurring in the middle of the winding iron core A (a state in which the iron core material is not normally wound), the iron core material 3 is extracted from the portion where the winding damage has occurred, and again the iron core material. The case where 3 is rewound is demonstrated. As described above, when a predetermined number (for example, about 1 to 10 sheets) of the core material 3 is extracted from the portion where the winding damage has occurred, the winding thickness of the wound core A is reduced as compared with before the core material 3 is extracted. The moving carriage 15 of the moving means 13 that rotatably supports the reel 8 (8a) and the drum 21 moves from the position before the iron core material 3 is extracted to the material winding position 4a side. The part where rewinding is started on the outer peripheral surface of the drum 21 facing the first and second detection means 23 and 24 after the moving carriage 15 has moved with the decrease in the thickness of the wound core A. Since the object to be detected 22 is provided in a shape (inclination) suitable for setting the cutting length of the iron core material 3 in the above, the object 22 to be detected output from the first and second detection means 23 and 24 is provided. Based on the detection signal, the shear drive motor 33 of the cutting device 7 is started, the iron core material 3 is sequentially cut at a predetermined cutting length, and wound around the winding frame 8 (8a). The rewinding operation of the iron core material 3 can be performed smoothly and satisfactorily.

As described above, in the present invention, the cutting length of the iron core material 3 that is coupled to the reel 8 (8a) so as to be capable of cooperating and is wound around the reel 8 (8a) of various sizes on the outer peripheral surface. The long circular drum 21 provided with the detection target 22 having a shape that can be set, and the detection target 22 provided on the outer peripheral surface of the drum 21 to detect the joints a ₁ and a ₂ in the wound iron core A ,... (That is, the cutting position of the iron core material 3) and the detection signals output from the first and second detection means 23, 24. On the basis of the iron core material 3 wound around the winding frame 8 (8a) by the cutting length setting means 6 provided with the cutting command output means 27 for outputting a cutting command to the shear drive motor 33 of the cutting device 7. Since the cutting length is set, the iron core material is used by the cutting length calculation means as in the past. Without processing the third cutting length, it is possible to produce a wound core A simplified. Moreover, in the present invention, if there is one drum 21 provided with the detected body 22 on the outer peripheral surface, the cutting length of the iron core material 3 wound around the reel 8 (8a) of various sizes is set, Since it is possible to manufacture a wound core A with a predetermined capacity, a cutting length calculation program is set for each volume of the wound core A, or an initial value for the cutting length is set for each volume of the wound core A as in the past. Since it is not necessary to memorize, it is very convenient.

  Further, since the winding frame 8 (8a) and the drum 21 can be moved integrally by the moving means 13, the drum 21 is wound every time the iron core material 3 is wound around the winding frame 8 (8a). In addition, the material is entrained by a distance corresponding to the plate thickness of the iron core material 3 (including a plate thickness deviation occurring in the iron core material 3 and an error due to burrs occurring at the end in the width direction of the iron core material 3). In order to move away from the position 4a, the detected material 22 provided on the outer peripheral surface of the drum 21 is detected by the first and second detection means 23, 24 after the movement of the drum 21, thereby cutting the iron core material 3. The length can be set longer by the thickness of the iron core material 3 (including the thickness deviation and the error of burrs). As a result, the error of the burrs is accumulated without correction. Insufficient cutting length of core material 3 It is possible to prevent indeed.

  Further, as the size of the reel 8 (8a) is changed (replaced), the drum 21 moves in a predetermined direction, and the detected body 22 provided on the outer peripheral surface and the device base 4b are fixed. Since the portions facing the installed first and second detection means 23 and 24 are appropriately changed (variable), the first and second detection means 23 and 24 are always replaced with the reel 8 ( 8a), a detected object 22 provided in a shape (inclination angle) suitable for setting the cutting length of the iron core material 3 wound around 8a) is detected, and the cutting signal output from the cutting command output means 27 in response to this detection signal It is possible to start the shear drive motor 33 of the cutting device 7 according to the command, and to cut the iron core material 3. As a result, the cutting length calculation program and the size (diameter dimension) of the reel, Or the discrepancy between the initial cutting length and the size (diameter) of the reel By, and surely prevent the excess and deficiency in the cut length of the core material occurs, it is possible to produce a good wound cores A characteristic.

  Further, as described above, when the drum 21 moves, the detected object 22 provided on the outer peripheral surface thereof is opposed to the first and second detection means 23 and 24 fixed and installed on the apparatus base 4b. Since the part can be appropriately changed (variable), for example, winding damage occurs in the middle of the wound core A, and even when the core material 3 is extracted from the part where the winding damage has occurred and rewinded, The drum 21 moves to the material winding position 4a side as much as the iron core material 3 is extracted (that is, as the winding thickness of the wound iron core A is reduced), and the rewinding of the iron core material 3 at the site where rewinding starts. A detection target 22 output from the first and second detection means 23 and 24 by making the detection target 22 suitable for setting the cutting length and the first and second detection means 23 and 24 face each other. Cutting command output based on detection signal of body 22 It is possible to output a cutting command from the stage 27 to the shear drive motor 33 of the cutting device 7 to cut the core material 3, and to sequentially wind the cut core material 3 from the rewind position. The rewinding operation of the core material 3 from the portion where the winding breakage occurred can be performed well, and the quantity of the winding core A that has been conventionally discarded as a defective product due to the winding breakage can be reduced. It can be surely reduced.

  Further, the detected body 22 is formed in a shape that has a relatively steep inclination on one end side of the drum 21 and gradually becomes a relatively gentle inclination toward the other end side of the drum 21. Therefore, when the increasing rate of the cutting length of the iron core material 3 is large as in the case of manufacturing the wound iron core A using the winding frame 8 having a small diameter size, Increasing rate of the cutting length of the iron core material 3 as in the case where the wound core A is manufactured using the winding frame 8a having a large diameter, facing the first and second detection means 23, 24. Is small, by making the relatively gently inclined portion of the body 22 to be detected and the first and second detection means 23 and 24 face each other, from the reel 8 having a small diameter to the reel 8a having a large diameter. The iron core material 3 is attached to any size of the reel 8 (8a). Even when the iron core material 3 is wound around the winding frame 8 (8a), the cutting length of the iron core material 3 is set to be sequentially increased by the plate thickness (2πt) of the iron core material 3 even when it is turned. As a result, it is possible to reliably prevent the cutting length of the iron core material 3 from being excessive or insufficient.

  The drum 21 is made of synthetic resin, the detected object 22 is made of metal, and the first and second detecting means 23 and 24 are made of proximity sensors. Even in this case, the first and second detection means 23 and 24 detect only the metal detection object 22 and do not erroneously detect the dirt or the like. If the detection means 23, 24 erroneously detect dirt or the like, it is possible to reliably prevent the occurrence of problems such as excessive or insufficient cutting length of the iron core material 3. In addition, since the first and second detection means 23 and 24 can detect the detection target 22 in a non-contact manner, the detection target 22 is lengthened by the first and second detection means 23 and 24. Even if the detection is repeated over a period, it is possible to prevent the first and second detection means 23 and 24 from being deteriorated or damaged at an early stage.

  In the present embodiment, the case where the wound iron core A is manufactured using the reel 8 having a small diameter and the reel 8a having a large diameter has been described. Needless to say, the wound core A can be manufactured in the same manner even when a reel having a size intermediate to that of the larger reel 8a is used.

It is a schematic block diagram which shows the wound iron core manufacturing apparatus of this invention. It is a top view which shows roughly the positional relationship of a drum and the 1st, 2nd detection means in the case of manufacturing a wound iron core using a winding frame with a small diameter dimension. Similarly, it is a front view schematically showing the positional relationship between a drum and first and second detection means when a wound iron core is manufactured using a winding frame having a small diameter. It is a top view which shows roughly the positional relationship of a drum and the 1st, 2nd detection means in the case of manufacturing a wound iron core using a winding frame with a large diameter dimension. Similarly, it is a front view schematically showing the positional relationship between a drum and first and second detection means when a wound iron core is manufactured using a winding frame having a large diameter. It is a timing chart which shows the operation | movement which manufactures the wound iron core of a 1 turn cut system. It is a top view which expands and shows the principal part of the wound iron core of a 1 turn cut system.

Explanation of symbols

DESCRIPTION OF SYMBOLS A Winding iron core 1 Winding iron core manufacturing apparatus 3 Iron core material 4 Iron core winding apparatus 5 Feeding means 6 Cutting length setting means 7 Cutting apparatus 8 Winding frame 10 Winding belt 11 Belt drive motor 13 Moving means 14 Guide member 15 Moving carriage 16 Rotation Shaft 21 Drum 22 Detected object 23 First detecting means 24 Second detecting means 27 Cutting command output means 29a, 29b, 30a, 30b Bevel gear 31 Connecting shaft 33 Shear drive motor

Claims (5)

  The iron core material unwound from the uncoiler and fed to the material winding position of the iron core winding device by the feeding means is cut into a predetermined length by a cutting device, and the iron core is cut to the predetermined length. In a wound core manufacturing apparatus in which materials are sequentially wound around a winding frame provided in the iron core winding apparatus to manufacture a wound core of a predetermined size, the material is connected to the winding frame so as to be capable of cooperating with the winding frame, etc. A long circular drum that rotates at a high speed, and a detection target that is provided on the outer peripheral surface of the drum in a shape in which the cutting length of the iron core material wound around various types of reels can be set. A cutting length setting means comprising: a first detecting means; a cutting command output means for outputting a cutting command to the cutting device based on detection signals output from the first and second detecting means; Set the cutting length of the iron core material Wound core manufacturing apparatus characterized by.   The winding frame and the drum are rotatably attached to a moving means provided in a movable state along a guide member provided on a device base of an iron core winding device, and a core material is wound around the winding frame. In addition, as the size of the reel is changed, the reel and the drum can be integrally moved in a predetermined direction as appropriate, and a detected object provided on the outer peripheral surface of the drum is detected. The first and second detection means are fixed and installed so as to be immovable on the apparatus base in a state of facing the outer peripheral surface of the drum on one end side in the length direction of the drum. Item 1. A wound core manufacturing apparatus according to item 1.   In the first and second detection means, as the winding frame and the drum move integrally, a portion facing the detected body provided on the outer peripheral surface of the drum appropriately changes. The wound core manufacturing apparatus according to claim 1 or 2.   The object to be detected is provided in a shape that is relatively steeply inclined on one end side in the length direction of the drum and relatively gently inclined toward the other end side in the length direction of the drum. The wound core manufacturing apparatus according to any one of claims 1 to 3, wherein   5. A wound core manufacturing apparatus according to claim 1, wherein said drum is made of synthetic resin, said object to be detected is made of metal, and said first and second detecting means are made of proximity sensors.

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