JP6644574B2 - Direct actuator and cutting device - Google Patents

Description

  The present invention relates to a direct actuator that directly outputs a displacement based on an electromagnetic force generated by flowing a current through a coil portion as a specific mechanical action, and a cutting device using the direct actuator.

  Conventionally, an actuator aimed at displacing a position of a mechanical output unit to at least a first position or a second position by using an electromagnetic force generated by flowing an electric current to a coil unit is known. Also, Patent Document 1 has already proposed a rotary solenoid suitable for such an application, and in particular, a rotary solenoid that has realized a reduction in size and size as a whole.

  By the way, since a rotary solenoid outputs a rotational force via an output shaft supported by a bearing portion, for example, when configuring a cutting device that performs cutting by displacing a cutter, the cutter and the rotary solenoid are directly connected. However, the intended cutting device cannot be constructed. For this reason, as shown in Patent Document 2, usually, a predetermined transmission mechanism such as a motion conversion mechanism and a direction conversion mechanism is interposed between a cutter and a rotary solenoid (output shaft). U.S. Pat. No. 5,077,098, cited as an example, is an apparatus that includes a cutting mechanism for processing a substantially constant velocity stream of a material web, and a web accumulator upstream of a cutter, wherein the web is moved by the side of a movable plate. Several features, including designing the stop, the size of the accumulator, and the cutting speed to produce an appropriate level of force between the cutting edge upstream of the web and the blade, achieve low cutting times. Changing the cutting force to cut web regions having different characteristics, a low inertia rotating solenoid (rotary solenoid) accelerates the blade through the web, abuts an elastic stopper, and further, the blade is It bounces off at the stopper, returns to its spring-biased home position, and when a solenoid current occurs, a permanent magnet or electromagnet Held at the home position, as a result, noise is reduced, which is constituted so that the cleavage time is shortened.

JP 2014-022703 A JP 2001-500804 A

  However, the conventional rotary solenoid described above has the following problems to be solved.

  First, since this type of rotary solenoid outputs a rotational force from an output shaft, the coil portion and the magnet portion usually face the axis of the output shaft in the radial direction. Therefore, it is structurally difficult to obtain a thin rotary solenoid, for example, in which the entire outer shape is a columnar shape or a similar shape. For this reason, for example, when cutting a wire, a web, or the like conveyed through a plurality of supply paths arranged at relatively narrow intervals by a conventional cutting device using a rotary solenoid, it is difficult to install the cutting device. It is not necessarily universal from the viewpoint of versatility. It should be noted that, when combined with other link mechanisms, etc., it is technically feasible, but on the other hand, the size, cost and complexity are increased, and implementation is not easy.

  Second, when such a cutting device is used as a production machine by incorporating it into a production line, usually high productivity and quality are required, and various objects such as hard materials are also targeted for cutting. Become. Therefore, this type of cutting device requires high-speed operation, required cutting force, and accuracy in dimensions and the like, but a transmission mechanism such as a motion conversion mechanism is interposed between the conventional rotary solenoid and the cutter. In these cases, these interventions act as negative factors for any of the requests. Therefore, there is a limit from the viewpoint of improving the basic performance of the cutting device and sufficiently satisfying these requirements.

  An object of the present invention is to provide a direct actuator and a cutting device which solve the problems existing in such background art.

  In order to solve the above-described problems, the direct actuator 1 according to the present invention displaces the position of the mechanical output unit to at least the first position or the second position by using an electromagnetic force generated by applying a current to the coil unit. A direct actuator, a fixed body 2 having a fixed position, a support mechanism 3 provided on the fixed body 2, and an intermediate portion 6 m rotatably supported by the support mechanism 3; A mechanical output section 5 is provided on one end 6s side, and a movable-side arrangement section 6c for disposing an electromagnetic force generating section for generating an electromagnetic force is provided on the other end 6t side. The movable body portion 6 is selected as a position where the electromagnetic force can be amplified and output from the mechanical output portion 5 as the position, and the movable-side arrangement portion 6c and the fixed portion facing the movable-side arrangement portion 6c Solid in body part 2 The electromagnetic force generator 7 having the magnet portion 7m disposed on one side of the side disposed portion 2c and the coil portion 7c disposed on the other side, and the rotation range Zx of the movable body 6 is at least set to the first position Xp or the second position Xq. The position restricting portion 8 and the fixed body portion 2 or the movable body portion 6 are integrally and close to the magnet portion 7m displaced to the first position Xp and / or the second position Xq. The suction members 17p and 17q formed of a magnetic material that holds the position of the movable body 6 displaced to the first position Xp and / or the second position Xq by being disposed at the positions. And

  In this case, according to a preferred embodiment, the fixed body portion 2 can be formed in a plate shape from a magnetic material. On the other hand, the movable body part 6 is rotatably supported by the support mechanism part 3 and has a support ring body 11 formed of a magnetic material and a surface on one end 6 s side fixed to one end face 11 s of the support ring body 11. And a movable plate body 12 formed of a magnetic material. The support mechanism 3 includes a support shaft 3 s having one end fixed to the fixed body 2, an inner ring portion supported by an outer periphery of the support shaft portion 3 s, and a movable member 6 supported by the outer ring portion. And two or more bearings 3b. The movable body 6 is disposed on the movable side so that the distance Lf between the movable arrangement portion 6c and the support mechanism 3 is longer than the distance Ls between the mechanical output unit 5 and the support mechanism 3. The position of the part 6c can be selected.

  Further, according to a preferred embodiment, the magnet part 7m can be configured to include at least one pair of a pair of front and rear magnets 13p and 13q arranged along the rotational displacement direction Fr of the movable body part 6, and the coil part. A single coil 14 having an axis in a direction Fs perpendicular to the rotational displacement direction Fr of the movable body 6 can be used for 7c. The position restricting portion 8 is provided with a pair of restricting stopper portions 15p and 15q provided integrally with the fixed body portion 2 and the restricting stopper portion 15p by being provided integrally on the other end 6t side of the movable body portion 6. , 15q.

  Further, in order to solve the above-described problem, the cutting device M according to the present invention is configured to use a magnetic force generated by applying a current to a coil unit to shift a position of a cutter to at least a first position or a second position. A fixed body 2 having a fixed position, a support mechanism 3 provided on the fixed body 2, an intermediate portion 6m rotatably supported by the support mechanism 3, and one end thereof. A cutter C is provided on the 6s side, and a movable-side disposition portion 6c for disposing an electromagnetic force generating section 7 for generating an electromagnetic force is provided on the other end 6t side, and the position of the movable-side disposition portion 6c is A movable body 6 in which a position at which the electromagnetic force can be amplified and output as a cutting force of the cutter C is selected; a movable-side arrangement portion 6; and a fixed-body portion 2 opposed to the movable-side arrangement portion 6 Fixed position 2c An electromagnetic force generating section 7 having a magnet section 7m disposed on one side and a coil section 7c disposed on the other side, and a position restricting section for restricting a rotation range Zx of the movable body section 6 to at least a first position Xp or a second position Xq. 8 and the fixed body portion 2 or the movable body portion 6, by being arranged integrally and at a position close to the magnet portion 7 m displaced to the first position Xp and / or the second position Xq. , And attracted elements 17p and 17q formed of a magnetic material that holds the position of the movable body 6 displaced to the first position Xp and / or the second position Xq.

  In this case, according to a preferred embodiment, the movable body 6 is rotatably supported by the support mechanism 3 and is formed of a support ring 11 made of a magnetic material and one end face 11 s of the support ring 11. And a movable plate body 12 having a surface fixed to one end 6s and formed of a magnetic material. In addition, the support ring body 11 has a cutter support portion 30 that supports the cutter C, and the cutter C can protrude from the outer peripheral surface 11f of the support ring body 11. On the other hand, the support mechanism 3 has one end fixed to the fixed body 2, and a support shaft 3 s that rotatably supports one end of the movable body 6 by an outer periphery, and the support shaft 3 s Can be selected to have a length that can support the plurality of movable body parts 3 arranged in the axial direction. The position restricting portion 8 has a pair of restricting stopper portions 15p and 15q provided integrally with the fixed body portion 2 and a restricting stopper portion provided integrally on the other end 6t side of the movable body portion 6. The stoppers 15p and 15q are provided so that the stoppers 15p and 15q can be brought into contact with the stoppers 16 of the plurality of movable bodies 3 arranged in the axial direction. You can also choose.

  According to the direct actuator 1 and the cutting device M according to the present invention having such a configuration, the following remarkable effects can be obtained.

  (1) The arrangement of the magnet part 7m and the coil part 7c in the direct actuator 1 (cutting device M) basically faces the support mechanism 3 not in the radial direction but in the axial direction. The overall thickness of the direct actuator 1 can be reduced to a thickness obtained by adding the thickness of the yoke and the casing to the thickness of the magnet portion 7m and the thickness of the coil portion 7c, thereby reducing the thickness of the entire direct actuator 1 (flattening). Can be easily realized. As a result, for example, even when configured as a cutting device and installed in a plurality of supply paths arranged at relatively narrow intervals for transporting a plurality of wires or webs, it can be easily installed and accurately installed. A simple cutting process can be constructed. In this way, the entire direct actuator 1 can be dramatically reduced in thickness, so that it can be widely used for various purposes. In addition, the combination with other link mechanisms and the like is unnecessary, so that the installation space can be reduced. Can greatly reduce the size, cost, and simplification.

  (2) In the cutting device M, the intermediate portion 6m is rotatably supported by the support mechanism 3 provided on the fixed body portion 2, the cutter C is provided at one end 6s, and the electromagnetic force is applied to the other end 6t. It has a movable-side disposition portion 6c for disposing the generated electromagnetic force generating portion 7, and the position of the movable-side disposition portion 6c can amplify the electromagnetic force and output it as a cutting force of the cutter C. A movable body 6 whose position is selected, a movable portion 6 and a magnet portion 7m disposed at one of the fixed side disposed positions 2c of the fixed body 2 opposed to the movable side disposed portion 6 and the other. And the electromagnetic force generating section 7 having the coil section 7c disposed in the section C. Therefore, the generated electromagnetic force can be directly transmitted to the cutter C, and various performances required for the cutting apparatus M, that is, high speed , Large cutting force, size It can be sufficiently met with respect to such accuracy equal. Therefore, for example, it is most suitable for applications in which a continuous hard material made of a new material is cut at high speed at regular intervals.

  (3) The direct actuator 1 (cutting device M) has a magnet portion 7m that is displaced integrally with the fixed body portion 2 or the movable body portion 6 to the first position Xp and / or the second position Xq. , The attracted elements 17p and 17q made of a magnetic material that holds the position of the movable body 6 displaced to the first position Xp and / or the second position Xq by being disposed at a position close to The suction force based on the attracted elements 17p and 17q can realize a reliable and stable self-holding action at the time of stoppage even when power is not supplied, and can reduce power consumption and suppress unnecessary temperature rise. Can contribute.

  (4) According to a preferred embodiment, if the fixed body portion 2 is formed in a plate shape from a magnetic material, a single flat metal plate material is basically sufficient. The cost can be reduced from the viewpoint, and the manufacturing process can be easily performed. Therefore, the cost can be reduced from the viewpoint of the manufacturing cost.

  (5) According to a preferred embodiment, when forming the movable body 6, a support ring 11 that is rotatably supported by the support mechanism 3 and is formed of a magnetic material, and one end surface 11 s of the support ring 11 And a movable plate body 12 made of a magnetic material, the surface of which is fixed to the one end 6s side, so that a part of the support ring body 11 can be used as the mechanical output unit 5, and Since the plate body 12 can be used as the arrangement portion 6c of the electromagnetic force generating section 7, it can be configured simply and rationally from the viewpoint of obtaining the direct actuator 1 that realizes the overall reduction in thickness, thereby contributing to easy implementation. .

  (6) According to a preferred aspect, when configuring the movable body 6, the distance Lf between the movable arrangement portion 6c and the support mechanism 3 is greater than the distance Ls between the mechanical output section 5 and the support mechanism 3. If the position of the movable side arrangement portion 6c is selected so as to be longer, the generated electromagnetic force can be amplified by the principle of leverage, so that a large cutting force by the cutter C can be reliably and stably obtained. It can be obtained easily with a simple structure.

  (7) In a preferred embodiment, when configuring the magnet portion 7m, at least one pair of front and rear magnets 13p and 13q arranged along the rotational displacement direction Fr of the movable body portion 6 is provided. Since the minimum required number of magnet parts is sufficient, the embodiment can be implemented as an optimal form from the viewpoint of realizing miniaturization and simplification.

  (8) According to a preferred embodiment, if a single coil 14 having an axis in the direction Fs perpendicular to the rotational displacement direction Fr of the movable body 6 is used for the coil 7c, the permeability in the inner space of the coil 14 is increased. Since the inductance proportional to the magnetic susceptibility can be set to a small value of several mH, when a driving voltage is applied, the current can rise to a saturation current almost instantaneously, and extremely high responsiveness can be realized. . As a result, it is possible to greatly contribute to a high-speed operation and further to an improvement in productivity when used in a cutting device or the like.

  (9) In a preferred embodiment, when forming the position restricting portion 8, the pair of restricting stopper portions 15 p and 15 q provided integrally with the fixed body portion 2 and the other end 6 t side of the movable body portion 6 are integrated. If it is provided with the locking portion 16 that comes into contact with the restriction stopper portions 15p and 15q by providing the same, the distance Lf between the support mechanism 3 and the locking portion 16 can be maximized. A stable position regulating action can be performed such that the force with which the locking portion 16 collides with the 15q can be relatively reduced. In addition, at the same time, since the error of the displacement amount of the mechanical output unit 5 can be relatively reduced, an accurate displacement amount can be obtained even in the rotation range Zx of the movable body unit 6.

  (10) According to a preferred embodiment, the support ring body 11 is provided with a cutter support portion 30 for supporting the cutter C, and the cutter C is projected from the outer peripheral surface 11f of the support ring body 11, so that the support ring body 11 Since the support function of supporting the cutter C can also be used, the cutter C can be reliably and stably supported, and the cutting force by the cutter C can be set to the maximum.

Partial cross-sectional side view of the cutting device according to a preferred embodiment of the present invention, with the cover plate removed, Bottom view of the cutting device, FIG. 1 is a sectional view of the cutting apparatus taken along line AA in FIG. Operation explanatory diagram of the cutting device, FIG. 1 is a schematic diagram of a cross section taken along line AA in FIG. 1 for explaining a magnetic circuit of the cutting apparatus. A schematic cross-sectional bottom view for explaining a magnetic circuit of the cutting device, Explanatory diagram of torque when cutting a workpiece by the cutting device, Time chart of the state of the work and a control signal applied to the coil unit of the cutting device showing an example when using the same cutting device, Operation explanatory diagram at the time of cutting operation of the cutting device, Front view showing an example of use of the cutting device, Front view showing another example of use of the cutting device, Partially cutaway side view of the cutting device according to a modified embodiment of the present invention without a cover plate, Time chart of the state of the work and a control signal applied to the coil unit of the cutting device showing an example when using the same cutting device, Side view of the cutting device according to another modified embodiment of the present invention, with the cover plate removed. Partially cutaway side view of the cutting device according to another modified embodiment of the present invention without the cover plate, Partially cutaway side view of the cutting device according to another modified embodiment of the present invention without the cover plate, Partially cutaway side view of the cutting device according to another modified embodiment of the present invention without the cover plate,

  Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

  First, the configuration of the direct actuator 1 according to the present embodiment will be specifically described with reference to FIGS.

  The direct actuator 1 is roughly divided into a fixed body 2 having a fixed position, a support mechanism 3 provided on the fixed body 2, and a movable body 6 rotatably supported by the support mechanism 3. An electromagnetic force generating section 7 disposed between the movable side portion 6c of the movable body portion 6 and the fixed side portion 2c of the fixed body portion 2; and a mechanical member provided on one end 6s side of the movable body portion 6. It comprises an output unit 5, a position regulating unit 8 for regulating the rotation range Zx of the movable unit 6, and a cover plate 9 (FIG. 2) arranged on the opposite side to the fixed unit 2.

  In this case, the fixed body part 2 is formed in one flat plate shape using a magnetic material. Since the illustrated fixed body portion 2 has a rectangular shape as a whole, it can be easily obtained by punching and forming a single metal plate material having a predetermined thickness. The fixed body 2 serves as a back yoke (fixed yoke), and is on a fixed side whose position is fixed with respect to a movable body 6 described later. As described above, if the fixed body portion 2 is formed in a plate shape from a magnetic material, a single flat metal plate material is basically sufficient, so that the cost is reduced from the viewpoint of parts (material) cost. In addition to the realization of the structure, the manufacturing process and the like can be easily performed.

  A support mechanism 3 is provided near one corner of the fixed body 2. The support mechanism 3 includes a support shaft 3 s having one end fixed to the fixed body 2, a bearing 3 b having an inner ring portion supported by the outer periphery of the support shaft portion 3 s, and supporting the movable body 6 by an outer ring portion. Is provided. A ball bearing can be used as the bearing 3b. In the illustrated example, two bearings (ball bearings) 3b are used, one of the bearings 3b supports one end of the support shaft 3s, and the other bearing 3b supports the other end of the support shaft 3s. It has. The support shaft 3s is formed in a cylindrical shape using a highly rigid metal material (such as a stainless steel material). It is desirable to use a magnetic material as a material for forming the support shaft 3s, but it is not always necessary to use a magnetic material. One end of the support shaft portion 3s is fixed to the fixed body portion 2 by fixing means such as welding or screwing. Thus, the other surface side of the support shaft portion 3s protrudes from the surface of the fixed body portion 2 in a direction perpendicular to the fixed body portion 2.

  On the other hand, the support shaft portion 3s has a function of rotatably supporting the one end 6s side of the movable body portion 6. As shown in FIG. 2, the movable body 6 is rotatably supported by the support mechanism 3 and is formed of a support ring 11 made of a magnetic material and one end 11 s of the support ring 11. It is configured by fixing the side surface and combining with a movable plate body 12 formed of a magnetic material. In this case, the support ring body 11 has a predetermined thickness in the axial direction, and has a circular hole 23 at the center for mounting the bearings 3b. Further, a small-diameter engagement ring portion 11c protruding in the axial direction is integrally formed on one end surface 11s of the support ring body 11. Further, the movable plate body 12 is formed in an elongated shape having a predetermined thickness, and one end 6s side is formed in a semicircular shape along the outer peripheral surface of the support ring body 11, and the engagement ring portion of the support ring body 11 is formed. A fitting hole 12p into which the engaging ring portion 11c fits is formed at a position facing the 11c. Therefore, it is desirable that the projection length of the engagement ring portion 11c in the axial direction is equal to the thickness of the movable plate body 12.

  Then, the engagement ring portion 11c of the support ring body 11 is fitted into the fitting hole 12p of the movable plate body 12, and a plurality (three in this example) of fixing screws 21 are used. A surface on one end 6s side is fixed to one end surface 11s of the support ring body 11. Thereby, the movable plate body 12 and the support ring body 11 are integrated. The support ring body 11 and the movable plate body 12 constitute a movable yoke.

  Further, the outer ring portion of the bearing 3b is fixed to the circular hole portion 23, and the inner ring portion of the ball bearing 22 is mounted and fixed on the outer peripheral surface of the support shaft portion 3s. Thereby, the one end 6s side of the movable body 6 is rotatably supported by the support shaft 3s. A part of the movable body 6 on one end 6 s side is configured as the mechanical output unit 5.

  As described above, when the movable body 6 is constructed, the support ring 11 which is rotatably supported by the support mechanism 3 and is made of a magnetic material, and one end 11 s of the support ring 11 has one end 6 s. And a movable plate body 12 formed of a magnetic material, a part of the support ring body 11 can be used as the mechanical output unit 5, and the movable plate body 12 Since it can be used as the arrangement portion 6c of the electromagnetic force generating section 7, there is an advantage that it can contribute to simplification of implementation, such as being simple and rational from the viewpoint of obtaining the direct actuator 1 that realizes the overall reduction in thickness.

  The magnetic material used in the present embodiment is preferably a soft magnetic steel material such as a cold-rolled steel plate. In particular, when a pure iron or silicon steel plate is used, the saturation magnetic flux density can be increased, so that the thickness can be reduced. In addition, when selecting the thickness of the movable plate body 12 and the thickness of the fixed body portion 2 described above, it is desirable to select the thickness to be about the thickness of the magnets 13p and 13q described later. This has the advantage of preventing magnetic saturation and reducing magnetic flux leakage.

  On the other end 6t side of the movable body 6, an electromagnetic force generator 7 for generating an electromagnetic force is provided. As shown in FIG. 2, when the movable body 6 is assembled to the support shaft 3 s, a gap corresponding to the thickness of the support ring 11 is provided between the movable plate 12 and the fixed body 2. The electromagnetic force generating unit 7 is disposed by utilizing this gap. That is, the surface of the movable plate body 12 that faces the fixed body portion 2 and is located on the other end 6t side of the support ring body 11 is secured as the movable-side disposition portion 6c. The magnet part 7m of the electromagnetic force generating part 7 is arranged at the arrangement part 6c.

  In this case, as the position of the movable-side arrangement part 6c, a position at which the electromagnetic force generated based on the electromagnetic force generation unit 7 is amplified and which can be output from the mechanical output unit 5 is selected. Specifically, the distance Ls between the movable output portion 6c and the support shaft 3s is selected to be longer than the distance Ls between the mechanical output unit 5 and the support shaft 3s. In the illustrated example, the distance [Lf: Ls] is approximately [2: 1]. As described above, when the movable body 6 is configured, the distance Lf between the movable arrangement portion 6c and the support shaft 3s (the support mechanism 3) depends on the mechanical output unit 5 and the support shaft 3s (the support mechanism 3). 3) If the position of the movable portion 6c is selected so as to be longer than the distance Ls between them, the generated electromagnetic force can be amplified by the principle of leverage, so that a large cutting force by the cutter C can be obtained. Can be obtained reliably and stably, and can be easily obtained with a simple structure.

  Further, the magnet part 7m constituting the electromagnetic force generating part 7 is constituted by a pair of magnets 13p and 13q arranged along the rotational displacement direction Fr of the movable body part 6. Each of the magnets 13p and 13q is formed in a flat rectangular parallelepiped shape. One magnet 13p has an N-pole opposed to the fixed body 2 and the other magnet 13q has an S-pole opposed to the fixed body 2. Various permanent magnets such as ferrite magnets and rare earth magnets can be used for the magnets 13p. In particular, when a Ne—Fe—B magnet is used, a higher torque can be obtained due to a high air gap magnetic flux density. Further, since the magnets 13p are oriented in the thickness direction, the magnetic properties of the magnets 13p can be used to the utmost to further increase the magnetic flux density of the gap generated between the movable plate body 12 and the fixed body portion 2 described above. it can.

  As described above, when configuring the magnet portion 7m, at least one pair of the front and rear magnets 13p and 13q, generally, the pair of front and rear magnets 13p and 13q arranged along the rotational displacement direction Fr of the movable body portion 6 is formed. If a plurality of sets are arranged, the minimum necessary number of magnet parts is sufficient. Therefore, there is an advantage that the embodiment can be implemented in an optimal form from the viewpoint of realizing miniaturization and simplification.

  On the other hand, a coil portion 7c is provided at a fixed side portion 2c of the fixed body portion 2 facing the magnet portion 7m. The coil portion 7c is constituted by a single coil 14 having an axis in a direction Fs perpendicular to the rotational displacement direction Fr of the movable body portion 6. The coil 14 can be configured by winding a magnet wire (such as a soft copper wire). The cross section of the magnet wire is usually circular, but the ampere turn can be increased by using a flat wire. Also, it is desirable to use a material that has been solidified in advance by heat fusion or the like during winding. As described above, when a single coil 14 having an axis in a direction Fs perpendicular to the rotational displacement direction Fr of the movable body portion 6 is used in configuring the coil portion 7c, the magnetic permeability in the space inside the coil 14 is used. Can be set to a small value of a few mH, so that when driving voltage is applied, the current can rise almost instantaneously to the saturation current, and extremely high responsiveness can be realized. As a result, there is an advantage that it can greatly contribute to high-speed operation, and further to improvement in productivity when used in a cutting device or the like.

  Further, a position restricting unit 8 that restricts the rotation range Zx of the movable body 6 to the first position Xp or the second position Xq is provided. The illustrated position restricting portion 8 has a pair of restricting stopper portions 15p and 15q provided integrally with the fixed body portion 2 and a restricting stopper portion 15p provided integrally with the other end 6t side of the movable body portion 6. , 15q. In this case, each of the restriction stoppers 15p and 15q is formed in a cylindrical pin shape. One restriction stopper 15p has a function of restricting the movable body 6 to the first position Xp, and the other restriction stopper 15q. Has a function of restricting the movable body 6 to the second position Xq. The locking portion 16 is formed integrally with the movable plate 12 on the other end 6t side in the form of a projection, and the locking portion 16 contacts the outer surfaces of the regulating stopper portions 15p and 15q.

  As described above, when configuring the position restricting portion 8, the pair of restricting stopper portions 15 p and 15 q provided integrally with the fixed body portion 2 and the pair of restricting stopper portions 15 p and 15 q are provided integrally on the other end 6 t side of the movable body portion 6. Therefore, the distance Lf between the support mechanism 3 and the locking portion 16 can be maximized by providing the locking stopper 16 that comes into contact with the restriction stoppers 15p and 15q. A stable position regulating action can be performed, for example, the force with which the locking portion 16 collides can be relatively reduced. Moreover, at the same time, since the error of the displacement amount of the mechanical output unit 5 can be relatively reduced, there is an advantage that an accurate displacement amount can be obtained even in the rotation range Zx of the movable body unit 6. One (or both) of the restriction stoppers 15p and 15q and the locking portion 16 may be partially modified as necessary, by a surface treatment, or by covering a member (rubber material, elastomer resin material, or the like). It is also possible to increase the speed and reduce the noise by reducing the bouncing of the movable body 6 by imparting shock absorption.

  Incidentally, the rotation range Zx of the movable body 6 is set to 20 to 30 °, preferably 25 ° as shown in FIG. Therefore, the first position Xp and the second position Xq for obtaining the rotation range Zx of the movable body 6 are selected, and the coil portion 7c (coil 14) that operates best with respect to the rotation range Zx. And the positional relationship between the magnet unit 7m (magnets 13p and 13q).

  Specifically, as shown in FIG. 1, the coil 14 is formed by winding in a fan shape. As a result, the two winding portions 14p and 14q (FIG. 4) of the coil 14 having a positional relationship orthogonal to the rotational displacement direction Fr of the movable body portion 6 extend along the radiation direction from the support shaft portion 3s. Provided. Then, as shown in FIG. 4, when the angle range of the winding portions 14p and 14q is Zc, the angle range Zc and the rotation range Zx (angle range) of the movable body 6 are set to be the same. I do. Further, the position of the pair of magnets 13p and 13q with respect to the position of the coil 14 is determined based on the area of the magnets 13p and 13q of the movable body 6 when the movable body 6 is displaced to the first position Xp and the second position Xq. The position is selected so that an overlap region is generated between the regions of the 14 winding portions 14p and 14q. As a result, even when the movable body 6 is displaced in the rotation range Zx, the effective electromagnetic force based on the electromagnetic force generating unit 7 acts, and the operation can be reliably performed.

  As described above, the direct actuator 1 of the basic mode is configured. In the case of the example, as shown in FIGS. 2 and 3, a cover plate having the same shape as the fixed body 2 is provided on the opposite side to the fixed body 2, that is, on the other side facing the fixed body 2. 9 is arranged. As a result, the direct actuator 1 has a sandwich structure in which a main mechanism is disposed in a space between the fixed body 2 and the cover plate 9. Note that the same cover plate 9 as the fixed body 2 can be used. The cover plate 9 is desirably formed of a magnetic material, but in the illustrated embodiment, it is not always necessary to use a magnetic material.

  Therefore, the direct actuator 1 having such a configuration has a function of directly outputting a displacement based on an electromagnetic force generated by flowing a current through the coil portion 7c as a specific mechanical action. In this case, the specific mechanical action is a cutting action using a cutter C, which will be described later, and an action for turning on and off a switch, an action for opening and closing a lever, and the like can be applied. In the case of the example, the mechanical output unit 5 outputs the displacement of the position corresponding to the above-described rotation range Zx, so that the output displacement is directly applied to the cutter C, the switch, the lever, and the like, so to speak. Let it.

  As described above, the direct actuator 1 according to the present embodiment has, as a basic configuration, a fixed body 2 whose position is fixed, a support mechanism 3 provided on the fixed body 2, and an intermediate portion formed by the support mechanism 3. 6m is rotatably supported, a mechanical output section 5 is provided on one end 6s side, and a movable-side arrangement section 6c for disposing an electromagnetic force generation section for generating an electromagnetic force is provided on the other end 6t side. A movable body 6 having a position at which the electromagnetic force can be amplified and output from the mechanical output unit 5 as a position of the movable-side arrangement part 6c; An electromagnetic force generating section 7 having a magnet portion 7m disposed on one of the fixed-side disposed portions 2c and a coil portion 7c disposed on the other of the fixed-side disposed portion 2c of the fixed body portion 2 facing the movable-side disposed portion 6c; At least in the first position X Alternatively, the position of the magnet portion 7m and the coil portion 7c in the direct actuator 1 is basically opposed to the support mechanism 3 not in the radial direction but in the axial direction because the position restricting portion 8 restricting the second position Xq is provided. The entire thickness of the direct actuator 1 can be suppressed to a thickness obtained by adding the thickness of the yoke and the casing to the thickness of the magnet portion 7m and the thickness of the coil portion 7c. Can be easily made thin (flattened).

  By the way, the direct actuator 1 according to the present embodiment is constructed as a cutting device M that transmits the amount of displacement of the actuator 1 to the cutter C, so to speak, by attaching a cutter (blade) C to the mechanical output unit 5. it can.

  Next, a configuration of the cutting device M according to the present embodiment using the direct actuator 1 will be described with reference to FIGS. 1 to 4 and 7. Note that the description of the direct actuator 1 will be omitted, and only the additional configuration of the cutting device M will be described.

  First, as shown in FIGS. 1 and 2, the cutter C is attached to the mechanical output portion 5 of the support ring 11. In this case, a housing recess 32 is formed on the peripheral surface of the support ring body 11, and a support block 33 that supports the cutter C is housed and fixed in the housing recess 32. In this case, the support block 33 is formed into a shape that fits into the housing recess 32 and fills the housing recess 32. Thereby, a slit-shaped accommodation hole is provided in the support block 33, and the cutter C can be inserted into the accommodation hole and tightened and fixed by the fixing screw 34. In addition, as the cutter C, it is desirable to use steel having high hardness and toughness such as carbon tool steel for cutting tools. The cutter C is not limited to a specific type, and various cutters can be used. In this case, maintenance or replacement of the cutter C is required, but the cutter C can be attached and detached with the fixing screw 34.

  As a result, the cutter support portion 30 is configured, and the cutter C is supported by the support ring body 11, and the distal end side of the cutter C protrudes from the outer peripheral surface 11 f of the support ring body 11. With this configuration, the support ring body 11 can also serve as a support function of supporting the cutter C, so that the cutter C can be reliably and stably supported, and the cutting force of the cutter C is maximized. There are advantages that can be set.

  Further, as shown in FIG. 1, a backup roller 41 facing the cutter C is provided. The illustrated cutting device M is a cutting device for cutting the hard web material Wo at regular intervals to obtain a workpiece W. For this reason, the gap between the cutter C and the backup roller 41 is selected so that the cutter C is displaced and the cutting is completed in a positional relationship perpendicular to the peripheral surface of the backup roller 41. For this reason, the peripheral strength, elastic force, and the like of the backup roller 41 are appropriately set.

  As the hard web material Wo, carbon nanotube, cellulose nanofiber, or the like is assumed. FIG. 7 shows a carbon-based material, CFRP (carbon fiber reinforced plastic), as an example of the hard web material Wo. By using, the web material Wo whose thickness Ld is set to 0.1 to 0.5 mm and whose width Lw is set to 0.1 to 10.0 mm is shown. When cutting is performed on this kind of material (material), a considerable cutting force is required, and usually a cutting force of at least about several kg is required.

  FIG. 7 schematically shows a state in which this kind of web material Wo is cut by the cutter C, and also shows a torque relationship at this time. 7, the position Pu is the home position (first position Xp) of the cutter C, the position Ps is the cutting start position for the web material Wo, the position Pe is the cutting end position for the web material Wo, and the position Pd is the most advanced position of the cutter C. (Second position Xq). Tc indicates the output torque [Nm] of the direct actuator 1, and Tw indicates the torque [Nm] when cutting the web material Wo. As described above, the output torque of the direct actuator 1 during cutting is substantially constant, and in the illustrated example, approximately 1 [Nm] is secured. On the other hand, the torque [Nm] at the time of cutting in the web material Wo changes so as to gradually increase from the cutting start position Ps to the cutting end position Pe. At this time, the cutting force by the cutter C is as large as several kg required for the cutting described above.

  Since the cutting device M thus configured basically uses the above-described direct actuator 1, the overall structure is such that the intermediate portion 6 m is rotatably supported by the support mechanism 3 provided on the fixed body 2. In addition, a cutter C is provided on one end 6s side, and a movable-side disposition portion 6c for disposing an electromagnetic force generator 7 for generating an electromagnetic force is provided on the other end 6t side, and the movable-side disposition is provided. As the position of the part 6c, a movable body part 6 in which a position where the electromagnetic force can be amplified and output as a cutting force of the cutter C is selected, and the movable part 6 and the movable part 6 are opposed to each other. An electromagnetic force generating section 7 having a magnet section 7m arranged at one of the fixed side arrangement positions 2c in the fixed body section 2 and a coil section 7c arranged at the other is provided.

  As a result, the generated electromagnetic force is transmitted directly to the cutter C, and various performances required for the cutting device M, that is, high speed, large cutting force, accuracy of dimensions, and the like are obtained. I can fully respond to it. Therefore, for example, it is most suitable for use in cutting a continuous hard material (web material Wo) made of the above-described new material at a constant speed at a high speed.

  Next, the operation of the cutting device M including the direct actuator 1 according to the present embodiment will be described with reference to FIGS.

  The rotation range Zx of the movable body 6 in the cutting device M according to the present embodiment, that is, the angle (rotation range Zx) between the first position Xp and the second position Xq at both end positions is shown in FIG. 4 described above. Thus, at the first position Xp where the movable body portion 6 is stopped, the locking portion 16 of the movable body portion 6 abuts on the restricting stopper portion 15p to set the movable body portion 6 at 25 °. At the second position Xq, which is the other stop position of the portion 6, the locking portion 16 of the movable body portion 6 comes into contact with the regulating stopper portion 15q.

  On the other hand, at the time of a cutting operation using the cutting device M, the cutting control for the cutting device M is performed by adding the drive voltage Vc shown in FIG.

  Now, as shown in FIG. 8B, if a relatively low negative voltage is applied to the coil 14 of the direct actuator 1 at time t0, the movable body 6 is held at the first position Xp. Further, as shown in FIG. 9A, the web material Wo is transported in the direction of arrow Fc (forward direction) along the transport path between the cutter C and the backup roller 41. At time t0 in FIG. 8A, the web material Wo is being conveyed. Therefore, as shown in FIG. 9A, a predetermined gap Lc that does not hinder the conveyance of the web material Wo is secured between the upper surface of the web material Wo and the lower end of the cutter C during the conveyance in the forward direction. .

  5 and 6, the distribution of the lines of magnetic force when a negative current flows in the coil 14 in the opposite direction is indicated by dotted arrows Fm.

  Thereafter, assuming that the web material Wo has been transported by the specified length when it reaches the time point t1 in FIG. 8A, as shown in FIG. While the transport of Wo is stopped, a specified voltage that is a positive relatively high voltage is applied to the coil 14 as shown in FIG. As a result, the movable body portion 6 is pivotally displaced from the first position Xp to the second position Xq, and the cutter C is also rotationally displaced in the direction of the arrow Fd in response to this rotational displacement. Then, as shown in FIG. 9B, when the cutter C reaches a position perpendicular to the peripheral surface of the backup roller 41, the tip of the cutter C contacts (presses) the peripheral surface of the backup roller 41. Then, the cutting process for the web material Wo is completed.

  Thereafter, the tip of the cutter C is further rotationally displaced away from the peripheral surface of the backup roller 41 as shown in FIG. 9C. The position of the cutter C shown in FIG. 9C indicates the position immediately after the cutting, and this time corresponds to the time t2 in FIG. At the time point t2 immediately after the cutting, the brake control is performed for the rotational displacement of the cutter C. Specifically, as shown in FIG. 8B, a relatively high negative voltage is applied to the coil 14 for a short time, and when the voltage reaches the time point t3 immediately after the application, a relatively low voltage is applied. Switch to the application of positive voltage. Thereby, the cutter C (movable body 6) is rotationally displaced to the second position Xq shown in FIG. 9D at the speed reduced by the brake control.

  When the time t3 is reached, the stopped web material Wo is moved backward in the opposite direction (the direction of the arrow Fn) by the set distance, as shown in FIG. 8A. This state is shown in FIG. Then, when reaching the time point t4 when the retreating movement is completed, as shown in FIG. 8B, a relatively high negative voltage is applied to the coil 14 to move the cutter C (the movable body 6) to the second position. A return process is performed on the cutter C that is rotationally displaced from the two positions Xq to the first position Xp. In this case, since the web material Wo is at the retracted position, adverse effects such as the cutter C coming into contact with the web material Wo when returning are avoided.

  At time t5 when the return process of the cutter C is completed, as shown in FIG. 8B, by switching to the application of a relatively low negative voltage to the coil 14, the movable body 6 It is held at one position Xp. This state is shown in FIG. When the time t5 has been reached, as shown in FIG. 8A, the conveyance of the web material Wo is started. Thereby, the web material Wo is transported in the direction of the arrow Fc (forward direction).

  As described above, the process of one cycle is completed, and as shown in FIG. 4, a work W having a predetermined specified length can be obtained from the web material Wo. In the example, the control is performed using a relatively high voltage and a low voltage as the drive voltage Vc, but other similar control using PWM control or the like may be performed.

  Next, a cutting device M (direct actuator 1) according to a modified embodiment of the present invention will be described with reference to FIGS.

  10 and 11 show examples of system construction in which a plurality of cutting apparatuses M are combined. FIG. 10 shows a configuration in which eight cutting devices M are connected to each other. In particular, the support shaft portion 3s and the restriction stopper portions 15p and 15q each penetrate the entire eight cutting devices M. It is composed of three support shafts 3s and one restriction stopper 15p (same for 15q). The structure of each cutting device M is basically the same as that of one cutting device M shown in FIGS. By constructing the system in this way, there is an advantage that it is possible to contribute to cost reduction and increase in rigidity, etc., and to dramatically increase productivity while securing an arrangement space.

  Therefore, in the system construction example shown in FIG. 10, it is possible to install even eight transport paths that transport eight (C type) web materials Wo arranged at narrow intervals. In this case, the plurality of cutting devices M may perform different controls independently of each other, or may perform the same synchronized control. In addition, in FIG. 10, the same portions as those of the cutting apparatus M shown in FIGS. 1 to 9 are denoted by the same reference numerals, the configuration is clarified, and the detailed description thereof is omitted.

  In this way, the cutting devices M can be easily installed and accurately installed even when they are installed in a plurality of supply paths arranged at relatively narrow intervals for transporting a plurality of wires or web materials Wo. A simple cutting process can be constructed. In particular, since the cutting device M (direct actuator 1) can be drastically reduced in thickness as a whole, it can be widely used for various applications, and in addition, it is not necessary to combine with other link mechanisms. Therefore, the size, cost, and simplification of the installation space can be significantly reduced.

  FIG. 11 shows a configuration in which two cutting devices M, M are arranged apart from each other, and the left and right ends of the elongated cutter C are supported by the respective cutting devices M, M. In this case, the two cutting devices M and M are controlled to perform the same operation by synchronizing with each other. In such a usage form, if two cutting devices M, M are prepared and the interval between them is set arbitrarily, a cutting device suitable for web material Wo having various width dimensions can be configured. In addition, in FIG. 11, the same parts as those of the cutting device M shown in FIGS. 1 to 10 are denoted by the same reference numerals, the configuration is clarified, and the detailed description is omitted.

  A cutting device M according to a modified embodiment shown in FIG. 12 (and FIG. 13) is a modification of the cutter C. The cutting device M shown in FIG. 1 arranges the longitudinal direction of the cutter C in parallel to the axial direction of the support shaft portion 3s, and performs the cutting by rotating and displacing the cutter C in the transport direction of the web material Wo. Although an example is shown, the cutting device M according to the modified embodiment shown in FIG. 12 arranges the longitudinal direction of the cutter C in a direction orthogonal to the axial direction of the support shaft 3s, and attaches the cutter C to a movable body. A movable side cutter Cm that is turned and displaced in accordance with the turning displacement of the part 6 is provided, and a fixed side cutter Cc is arranged on the other hand with respect to the cutter Cm. Therefore, the principle of cutting by the cutters Cm and Cc is the principle of cutting scissors. FIG. 12 shows a part of the movable plate 12 in the movable body 6 in order to clarify the positional relationship between the coil 7c provided in the fixed body 2 and the magnet 7m provided in the movable body 6. Is shown broken. In addition, in FIG. 12, the same parts as those of the cutting apparatus M shown in FIGS. 1 to 11 are denoted by the same reference numerals, the configuration is clarified, and the detailed description is omitted.

  In the cutting step using the cutting device M shown in FIG. 12, control can be performed by adding a drive voltage Vc shown in FIG. 13B to the coil 14 of the direct actuator 1.

  If a relatively low negative voltage is applied to the coil 14 at time t10, the movable body 6 is held at the first position Xp. As shown in FIG. 12, the web material Wo is transported in the transport path between the cutters Cm and Cc in the front direction of the drawing. Then, assuming that the web material Wo has been transported by the specified length at time t11 in FIG. 13A, the transport of the web material Wo is stopped at this time t11 as shown in FIG. Stop. In addition, as shown in FIG. 13B, a relatively high specified voltage that is positive is applied to the coil 14 of the cutting device M.

  As a result, the movable body portion 6 is pivotally displaced from the first position Xp to the second position Xq, and the cutter Cm is also pivotally displaced in the cutting direction in response to this rotational displacement, and the web formed by the cutters Cm and Cc The cutting for the material Wo is performed. Further, the cutter Cm (movable body portion 6) is displaced to the second position Xq side, and when the time reaches t12 corresponding to the second position Xq, as shown in FIG. Then, a relatively high negative voltage is applied, and the cutter C (the movable body 6) is returned to the first position Xp. Then, when a time point t13 at which the return processing ends is reached, as shown in FIG. 13B, by switching to the application of a relatively low negative voltage to the coil 14, the movable body 6 It is held at the position Xp. When the time t13 has been reached, as shown in FIG. 8A, the conveyance of the web material Wo is started. Thereby, the web material Wo is transported in the forward direction.

  As described above, one cycle of the process is completed, and a work W having a predetermined length set in advance can be obtained from the web material Wo. In the illustrated example, the control is performed using a relatively high voltage and a low voltage as the driving voltage Vc. However, other similar control using PWM control or the like may be performed.

  The cutting device M according to the modified embodiment shown in FIG. 14 shows a modified example when the cutter C is attached to the mechanical output unit 5. Each of the cutting apparatuses M shown in FIGS. 1 and 12 shows an example in which the cutter C is directly fixed to the support ring body 11 in the movable body 6, so to speak, a modified embodiment shown in FIG. In the cutting device M according to the present invention, the pinion portion 51 is fixed to the support ring body 11, and the rack portion 52 meshing with the pinion portion 51 is displaceably disposed, and the cutter C (Cm) is attached to the rack portion 52. They are assembled together.

  As a result, if the movable body portion 6 is rotated and displaced, and the pinion portion 51 is turned and followed, the displacement is transmitted to the pinion portion 51, and the pinion portion 51 and further the cutter C are displaced forward and backward. Therefore, if the fixed-side cutter Cc is disposed in front of the cutter C (the movable-side cutter Cm), the cutting process can be performed on the web material Co located between the cutter Cc and the Cm. In this case, the pinion part 51 and the rack part 52 constitute a motion conversion mechanism that converts a rotational motion into a linear motion. In addition, in FIG. 14, the same portions as those of the cutting device M shown in FIGS. 1 to 12 are denoted by the same reference numerals, the configuration is clarified, and the detailed description is omitted.

  A cutting device M according to a modified embodiment shown in FIG. 15 shows a modified example of the electromagnetic force generating unit 7. The cutting device M shown in FIG. 1 shows an example in which the coil portion 7c is provided in the fixed body portion 2 and the magnet portion 7m is provided in the movable body portion 6, but according to the modified embodiment shown in FIG. The cutting device M has a structure in which a magnet 7 m is provided on the fixed body 2 and a coil 7 c is provided on the movable body 6. Even in this case, the basic operation principle is the same as that of the cutting device M shown in FIG. In addition, in FIG. 15, the same parts as those of the cutting apparatus M shown in FIGS. 1 to 12 are denoted by the same reference numerals, the configuration is clarified, and the detailed description is omitted.

  A cutting device M according to a modified embodiment shown in FIGS. 16 and 17 is provided with a magnetic self-holding mechanism. The cutting device M shown in FIG. 1 can be electrically stopped by flowing a current through the coil portion 7c when stopping the rotating body portion 6 at the first position Xp and the second position Xq. On the other hand, the cutting device M shown in FIGS. 16 and 17 is stopped by a magnetic self-holding mechanism.

  FIG. 16 shows the movable body portion displaced to the first position Xp by disposing the movable body portion integrally with the fixed body portion 2 and at the position Xsp close to the magnet portion 7m displaced to the first position Xp. 16 is provided with a attracted element 17p formed of a magnetic material that holds the position of the coil 6. In particular, FIG. 16 shows that the coil 7c is provided on the fixed body 2 and the magnet 7m is provided on the movable body 6. Since the arrangement is provided, the present invention is applied to this embodiment. FIG. 16 shows a state in which the movable body portion 6 is rotationally displaced to the first position Xp, and one magnet 13p in the magnet portion 7m is close to the attracted element 17p. In this case, the movable body 6 can be reliably stopped at the first position Xp by the suction force based on the sucked element 17p even when the power is not supplied, and a stable self-holding action at the time of stop is ensured. it can.

  FIG. 17 shows that the first position Xsp and Xsq are arranged integrally with the movable body 6 at positions Xsp and Xsq close to the magnet 7m displaced to the first position Xp and the second position Xq. Xp and the attracted elements 17p and 17q formed of a magnetic material for holding the position of the movable body 6 displaced to the second position Xq are provided. In particular, FIG. Is provided, and the coil portion 7c is provided on the movable body portion 6, so that the present invention is applied to this embodiment. Thereby, when the movable body part 6 is rotationally displaced to the first position Xp, one attracted element 17q provided on the movable body part 6 approaches one magnet 13q in the magnet part 7m, The movable body 6 can be reliably stopped at the first position Xp, and a stable self-holding action at the time of the stop can be ensured even when power is not supplied by the suction force based on the attracted element 17q. On the other hand, when the movable body portion 6 is pivotally displaced to the second position Xq, the other attracted element 17p provided in the movable body portion 6 approaches the other magnet 13p in the magnet portion 7m. The movable body 6 can be reliably stopped at the second position Xq even when power is not supplied by the suction force based on the suction element 17p, and a stable self-holding action at the time of stop can be ensured.

  By providing such mechanical suction elements 17p and 17q, it is possible to eliminate the holding function by electrical control, thereby contributing to the effect of reducing power consumption and the effect of suppressing unnecessary temperature rise. There are advantages that can be done. In addition, in the example, when providing the suctioned elements 17p and 17q, the example in which the pin-shaped suctioned elements 17p and 17q formed separately are attached is shown. The suction members 17p and 17q may be formed integrally with the fixed body portion 2 by notching in the shape of a square, and further bending at right angles.

  As described above, the preferred embodiment and the modified embodiment have been described in detail. However, the present invention is not limited to such an embodiment, and the present invention is not limited to the detailed configuration, shape, material, quantity, numerical value, and the like. Any change, addition, or deletion can be made without departing from the gist.

  For example, although the illustrated movable body portion 6 is configured by combining the support ring body 11 and the movable plate body 12, the support ring body 11 and the movable plate body 12 may be integrally formed of the same material. As described in the embodiment, two bearings 3b... Constituting the support mechanism 3 are prepared and arranged on one end and the other end of the support shaft 3s, respectively. Although it is a desirable form in order to secure the target strength, high rigidity, and stability, the form using one or three or more bearings 3b is not excluded. In addition, various types of bearings such as a roller bearing, a color bearing, and the like can be used as the bearing 3b. On the other hand, the example in which the pair of front and rear magnets 13p and 13q arranged along the rotational displacement direction Fr of the movable body portion 6 is arranged on the fixed body portion 2 with respect to the fixed body portion 2 has been described. 9 may be additionally provided, that is, two sets may be arranged in a positional relationship sandwiching the movable body 6. Also, the case where a single coil 14 having an axis in a direction Fs perpendicular to the rotational displacement direction Fr of the movable body 6 is used as the coil part 7c, but two or more coils 14 are used. It does not exclude the case of arranging. Further, the position regulating portion 8 is provided integrally with the pair of regulating stopper portions 15p and 15q provided integrally with the fixed body portion 2 and on the other end 6t side of the movable body portion 6 so that the regulating stopper portion 15p is provided. , 15q, and the engaging portion 16 that comes into contact with the movable portion 6q. However, as long as the movable portion 6 has a function of restricting the movable body portion 6 to the rotation range Zx, it can be replaced with another configuration.

  The direct actuator 1 according to the present invention can be used as a cutting device M provided with a cutter C in the mechanical output unit 5, and can also output the mechanical output unit 5 as a specific mechanical action to a specific object. It can be used for various applications such as opening, closing, switching, etc.

  Further, the cutting device M according to the present invention is suitable for cutting a hard web material using a carbon fiber reinforced plastic, a hard web material using a material such as a carbon nanotube or a cellulose nanofiber, or a wire material. However, it can be widely used for cutting various materials that require a large cutting force and high speed.

  1: Direct actuator, 2: Fixed body part, 2c: Installation site, 3: Support mechanism part, 3s: Support shaft part, 3b ...: Bearing, 5: Mechanical output part, 6: Movable body part, 6s: Movable One end of the body part, 6t: the other end of the movable body part, 6c: an arrangement part, 7: an electromagnetic force generating part, 7m: a magnet part, 7c: a coil part, 8: a position regulating part, 11: a support ring body, 11s : One end face of the support ring body, 11f: outer peripheral face of the support ring body, 13p: magnet, 13q: magnet, 14: coil, 15p: regulating stopper, 15q: regulating stopper, 16: locking part, 17p: covered Suction element, 17q: suction element, 30: cutter support portion, Zx: rotation range of the movable body portion, Xp: first position, Xq: second position, Lf: distance between the arrangement portion and the support mechanism portion, Ls: distance between mechanical output unit and support mechanism, Fr Rotational displacement direction of the movable body, Fs: perpendicular direction relative rotational displacement direction, M: cutting device, C: Cutter

Claims (13)

  A direct actuator that displaces the position of the mechanical output unit to at least the first position or the second position by using an electromagnetic force generated by flowing an electric current to the coil unit, and a fixed body unit in which the position is fixed, A support mechanism provided on the fixed body, and an intermediate portion is rotatably supported by the support mechanism, and the mechanical output section is provided at one end and the electromagnetic force is generated at the other end. It has a movable arrangement part for disposing an electromagnetic force generating unit, and as the position of the movable arrangement part, a position at which the electromagnetic force can be amplified and output from the mechanical output unit is selected. A movable portion, a movable portion, a magnet portion disposed on one of the fixed side portions of the fixed body portion facing the movable portion, and a coil portion disposed on the other side. An electromagnetic force generator, A position restricting portion for restricting the rotation range of the movable body portion to at least the first position or the second position, and the fixed body portion or the movable body portion, integrally, and the first position and (Or) A magnetic material that holds the position of the movable body portion displaced to the first position and / or the second position by disposing it at a position close to the magnet portion displaced to the second position. A direct actuator, comprising: a suction element formed by:   2. The direct actuator according to claim 1, wherein the fixed body is formed in a plate shape from a magnetic material.   The movable body portion is rotatably supported by the support mechanism portion, and a support ring body formed of a magnetic material, and one end surface thereof is fixed to one end surface of the support ring body, and is formed of a magnetic material. The direct actuator according to claim 1, further comprising a movable plate body formed.   The support mechanism portion includes a spindle portion having one end fixed to the fixed body portion, and one or more bearings in which an inner ring portion is supported by an outer periphery of the spindle portion and the movable body portion is supported by an outer ring portion. The direct actuator according to claim 1, further comprising:   The movable body portion may be located at the position of the movable-side disposition portion such that a distance between the movable-side disposition portion and the support mechanism portion is longer than a distance between the mechanical output portion and the support mechanism portion. The direct actuator according to claim 1, wherein   2. The direct actuator according to claim 1, wherein the magnet unit includes at least one set of a pair of front and rear magnets arranged along a rotational displacement direction of the movable body unit. 3.   2. The direct actuator according to claim 1, wherein the coil unit uses a single coil having an axis perpendicular to a rotational displacement direction of the movable unit. 3.   The position restricting portion includes a pair of restricting stopper portions provided integrally with the fixed body portion, and a locking portion abutting on the restricting stopper portion by being provided integrally on the other end side of the movable body portion. The direct actuator according to claim 1, comprising:   A cutting device that displaces the position of a cutter to at least a first position or a second position by using an electromagnetic force generated by flowing an electric current to a coil portion, and a fixed body portion having a fixed position, and the fixed body A supporting mechanism provided in the section, an intermediate portion rotatably supported by the supporting mechanism, an cutter provided on one end, and an electromagnetic force generator for generating the electromagnetic force provided on the other end. A movable body portion having a movable arrangement portion for setting, and a position capable of amplifying the electromagnetic force and outputting as a cutting force of the cutter as a position of the movable arrangement portion; The electromagnetic force generating section having a magnet portion disposed on one of the fixed side disposition positions of the movable side disposition portion and the fixed side disposition position of the fixed body portion opposed to the movable side disposition portion, and a coil portion disposed on the other side; The movable body A position restricting portion that restricts a rotation range of at least the first position or the second position and the fixed body portion or the movable body portion, integrally with the first position and / or the By arranging the movable portion close to the first position and / or the second position by disposing the movable portion close to the magnet portion displaced to the second position, the magnetic member formed of a magnetic material holding the position of the movable member displaced to the second position. A cutting device comprising a suction element.   The movable body portion is rotatably supported by the support mechanism portion, and has a support ring body formed of a magnetic material, and one end surface fixed to one end surface of the support ring body, and a magnetic material. The cutting device according to claim 9, further comprising a movable plate body formed.   The cutting device according to claim 10, wherein the support ring body has a cutter support portion that supports the cutter, and causes the cutter to protrude from an outer peripheral surface of the support ring body.   The support mechanism section includes a support shaft section having one end fixed to the fixed body section and an outer periphery rotatably supporting one end side of the movable body section. The support shaft section is arranged in the axial direction. The cutting device according to claim 9, wherein the cutting device has a length capable of supporting a plurality of the movable body portions.   The position restricting portion includes a pair of restricting stopper portions provided integrally with the fixed body portion, and a locking portion abutting on the restricting stopper portion by being provided integrally on the other end side of the movable body portion. 13. The cutting device according to claim 9, wherein the restricting stopper portion has a length such that the locking portions of the plurality of movable body portions arranged in the axial direction can abut. apparatus.

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