JP2013031881A - Press device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a press device that generates power by effectively utilizing the energy of the press device during press working operation.SOLUTION: Power is generated by the press device that includes: a press device body 1 reciprocating a press molding die D for press working through the rotation of a flywheel 117 by a drive source; a generator 200 rotationally driven to generate power; and a motion transmission mechanism 300 connecting the generator 200 to a moving member moving in association with the rotation of the flywheel 117, and rotationally driving the generator 200 by the motion of the moving member.

Description

  The present invention relates to a press apparatus that generates power by effectively using energy during a press working operation.

  In recent years, a power generation device (Patent Document 1) using natural energy such as wave power and a power generation device (Patent Document 2) using vibration energy of an automobile engine or the like have been proposed. As described above, development of using a large energy source, which has not been effectively used in the past, for power generation has been active.

  A press device exists as a device having a large energy during operation. The press device is used to press a plate-like workpiece, for example, and uses a large amount of energy to plastically deform the workpiece at a high speed and process it into a predetermined shape. The press device presses a workpiece by obtaining energy used for press processing from energy accumulated sufficiently as inertial energy of the flywheel by rotating the flywheel with a drive motor.

JP-A-6-280240 JP-A-8-321642

  However, the press device only uses a part of the sufficient inertia energy stored in the flywheel for the press work. Further, the press device generates considerable vibration during the press working operation, but does not particularly use the vibration energy during the press working operation.

  In view of the above circumstances, the object of the present invention is to focus on inertia energy sufficiently accumulated in the flywheel of the press device during the press working operation and vibration energy during the press work operation, and the press device during the press work operation has. An object of the present invention is to provide a press apparatus that generates power by effectively using energy.

  In order to solve the above-described problems, the first aspect of the present invention provides a press device main body that performs press processing by moving a press mold by a drive source through rotation of a flywheel, and power generation that is rotationally driven to generate electric power. And a motion transmission mechanism that is coupled to a generator and a motion member that moves in accordance with the rotation of the flywheel, and that rotates the generator by the motion of the motion member.

  Here, “through the rotation of the flywheel” means that the reciprocating motion of the press mold is performed using the inertial energy of the rotation of the flywheel. In addition, the above-mentioned “moves with the rotation of the flywheel” means to move using the inertia energy of the rotation of the flywheel.

  The moving member may be a balancer body that reciprocates in a direction opposite to a press mold provided in the press apparatus body that reciprocates during a press working operation.

  Here, the “press mold” is constituted by a pair of molds, and by reciprocating so that one mold is relatively close to and separated from the other mold, A workpiece between a pair of molds is pressed. The “reciprocating motion in the opposite direction” means that the reciprocating motion is always in the opposite direction to the moving direction of the reciprocating press mold.

  The motion transmission mechanism may be a crank mechanism that converts the reciprocating motion of the balancer body into a rotational motion and transmits it to the generator.

  Next, the second aspect of the present invention relates to an anti-vibration mechanism, a press device main body placed on the anti-vibration mechanism, and a vibration attached to a vibration part of the anti-vibration mechanism that vibrates by press processing of the press device main body. And a piezoelectric element that is disposed in the vicinity of the pressing means and that is repeatedly pressed by the vibration of the pressing means and repeatedly bends to generate electric power.

  Here, the “repetitive pressing” is not necessarily limited to the case where the piezoelectric element is directly pressed, and includes the case where the metal body or the like to which the piezoelectric element is attached is pressed.

  It is desirable that the pressing means repeatedly presses the piezoelectric element through an elastic body.

  Here, the “elastic body” may be anything as long as it protects the piezoelectric element from the impact of pressing.

  According to the present invention, it is possible to generate power using the inertia energy sufficiently accumulated in the flywheel of the press device main body during the press working operation and the vibration energy during the press work operation of the press device main body. The energy that the main body has during the press working operation can be used effectively.

Schematic of the first embodiment of the first invention Schematic of the second embodiment of the first invention Schematic of the second embodiment of the present invention

  Hereinafter, embodiments of the first invention will be described with reference to the drawings. FIG. 1 is a schematic view of a first embodiment of the first invention.

  The press device 1 is provided on an anti-vibration mechanism 400 provided on the ground surface B of the press device 1, a press device main body 100 placed on the anti-vibration mechanism 400, and an upper portion of the press device main body 100. The generator 200 and a motion transmission mechanism 300 that is attached to a part of the press apparatus main body 100 and rotates the generator 200 are configured.

  The press apparatus main body 100 is connected to the frame 110, the drive mechanism 120 supported by the frame 110, and the drive mechanism 120, and slides for reciprocating the upper mold UD of the press mold D in the press working direction (Y direction in the figure). The balancer mechanism 140 is connected to the mechanism 130 and the drive mechanism 120 and reciprocates the balancer main body 142 in the press working direction and in the direction opposite to the moving direction of the upper mold UD.

  The frame 110 is disposed on the lower frame 111 having support legs, the bolster 112 to which the lower mold LD of the press mold D is attached, and the gate disposed on the lower frame 111 and surrounding the bolster 112. The upper frame 113 has a mold structure. The lower frame 111 is supported by four support legs on the vibration isolation mechanism 400 placed on the ground contact surface B of the press device 1. The upper frame 113 is attached to the left and right left and right guide grooves 114 on both sides and the left and right left and right guide grooves 114, and is slidable in a direction perpendicular to the pressing direction (X direction in the figure), and two plungers described later. 132 has left and right upper and lower guide grooves 116 slidably mounted in the pressing direction (Y direction in the figure). A drive motor (not shown) is attached to the frame 110, and a flywheel 117 indicated by a one-dot chain line in the drawing is connected to the drive motor.

  The drive mechanism 120 has a drive shaft 121 connected to the rotating shaft of the flywheel 117, one end rotatably connected to the drive shaft 121, and the other end connected to each slider 115 in the left and right guide grooves 114 and a connecting pin P. The two connecting rods 122 are rotatably connected to each other.

  The slide mechanism 130 is rotatably connected to the connecting rod 122 and the slider 115 via a connecting pin P, is rotatably connected to the slider links 131, and is attached to the upper and lower guide grooves 116. The two plungers 132 and a slider 133 fixed to the other end of each plunger 132 and to which the upper mold UD is fixed.

  The balancer mechanism 140 includes two balancer links 141 that are rotatably connected to the respective connecting rods 122 and the respective sliders 115 via connecting pins P, and a balancer body 142 that is rotatably connected to each balancer link 141. It is configured.

  Here, the press working operation of the press apparatus main body 100 will be described. The drive shaft 121 rotates through a flywheel 117 that is rotated by a drive motor (not shown). By rotation of the drive shaft 121, each connecting rod 122 slides each slider 115 connected by the connecting pin P in a direction (X direction in the drawing) perpendicular to the pressing direction, and is connected to the connecting pin P. The plunger 132 and the balancer main body 142 are moved in the press working direction (Y direction in the drawing) via the slider links 131 and the balancer links 141.

  Here, the balancer body 142 and the plungers 132 always move in opposite directions. As described above, each plunger 132 is connected to the slider 133 to which the upper mold UD is attached, and the workpiece between the lower mold LD and the upper mold UD reciprocates in the press working direction. R is pressed.

  The generator 200 has a rotating shaft 201 and generates electric power by rotationally driving the rotating shaft 201.

  The motion transmission mechanism 300 includes a link 301 having one end rotatably connected to the balancer main body 142, and a pulley 302 having the other end of the link 301 rotatably connected at an eccentric position, thereby rotating the pulley 302. A belt 303 that transmits to the rotating shaft 201 of the generator 200 is provided. Here, in order to change the transmission efficiency from the pulley 302, the pulley may also be connected to the rotating shaft 201 of the generator 200.

  Next, the power generation operation of the first embodiment will be described. When the press apparatus main body 100 presses part of the inertia energy stored in the flywheel 117 sufficiently, the balancer main body 142 reciprocates in the pressing direction, and the reciprocating movement of the balancer main body 142 is described above. Is converted into a rotational motion by the crank mechanism, and the rotating shaft 201 of the generator 200 is rotated via the belt 303.

  Here, the press apparatus main body 100 during the press working operation requires energy when the workpiece R is pressed, and other than that, much energy is not needed. Therefore, by effectively using the energy sufficiently accumulated in the flywheel 117, the generator 200 can be rotationally driven to generate electric power without using a new drive source for rotationally driving the generator 200.

  FIG. 2 is a schematic diagram of a second embodiment of the first invention. The same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 2, in the press device main body 100 of the press device 1 according to the second embodiment, the frame 110 does not have the left and right guide grooves 114 as compared with the press device 1 according to the first embodiment, and the upper and lower guides. The only difference is that there is one groove 116, one connecting rod 122 and one plunger 132 of the drive mechanism 120, and no balancer mechanism 140. Furthermore, since the motion transmission mechanism 300 of the press device 1 of the second example does not have the balancer mechanism 140, the motion transmission mechanism 300 is newly provided with an arm 304. One end of the arm 304 is rotatably connected to the link 301, and the other end is fixed to the slider 133.

  The power generation operation of the second embodiment will be described. When the press apparatus main body 100 presses part of the inertia energy stored in the flywheel 117 sufficiently, the slider 133 reciprocates in the pressing direction, and the reciprocating movement of the slider 133 causes the arm 304 to move. Then, it is converted into rotational motion by the above-described crank mechanism, and the rotating shaft 201 of the generator 200 is rotated via the belt 303.

  Here, the press apparatus main body 100 during the press working operation requires energy when the workpiece R is pressed, and other than that, much energy is not needed. Therefore, by effectively using the energy sufficiently accumulated in the flywheel 117, the generator 200 can be rotationally driven to generate electric power without using a new drive source for rotationally driving the generator 200.

  Next, a second embodiment of the present invention will be described. In addition, the press apparatus main body 100 in the second embodiment of the present invention has the same configuration as the press apparatus main body 100 in the first or second embodiment of the first present invention, and a description thereof will be omitted. FIG. 3 is a schematic view of the second embodiment of the present invention. FIG. 3 shows only the support legs of the press apparatus main body 100 for easy understanding.

  The press apparatus 1 according to the second aspect of the present invention includes a vibration isolating mechanism 400 provided on the ground contact surface B of the press apparatus 1 and a press apparatus main body 100 illustrating only support legs placed on the vibration isolating mechanism 400. The pressing unit 500 is mounted so as to extend from the upper part of the vibration isolation mechanism 400 in the direction perpendicular to the pressing direction (X direction in the drawing), and is provided on the installation surface B so as to be positioned below the pressing unit 500. Power generation means 600.

  The vibration isolation mechanism 400 includes a base plate 401 installed on the ground plane B, and a damper 402, a vibration isolation spring 403, and a stopper 404 are provided on the upper surface of the base plate 401. Further, the vibration isolation mechanism 400 includes a top plate 405 that is connected to the base plate 401 via the damper 402 in parallel with the base plate 401. On the lower surface of the top plate 405, an anti-vibration spring adjusting unit 406, A guide plate 407 having a through hole is provided. A stopper 404 is inserted into the through hole of the guide plate 407 so as to be relatively movable, so that the guide plate 407 can vibrate along the stopper 404 in the press working direction (Y direction in the figure). Yes. The spring adjusting means 406 can change the initial deflection of the vibration-proof spring 403.

  The description of the press apparatus main body 100 is omitted as described above.

  Next, the pressing unit 500 will be described. The pressing means 500 includes a beam 501 having a through-hole extending from the top plate 405 in a direction perpendicular to the pressing direction (X direction in the drawing), and a pressing portion 510 attached to the beam 501.

  The pressing portion 510 includes a slide shaft 512, a pressing spring 513, and a nut 514. The slide shaft 512 has a head portion 512a at one end, and a screw portion is formed at a part of the other end. The slide shaft 512 is inserted into the pressing spring 513 from the end on the screw portion side. Further, the end of the slide shaft 512 on the screw portion side is inserted into the through hole of the beam 501 from below, and the nut 514 is screwed into the screw portion protruding upward from the beam 501. Thereby, the pressing part 510 can move relative to the beam 501 in a state where a certain pressure is applied.

  The power generation means 600 includes a support 601 provided on the ground plane B, a plate-like metal body 602 supported only at both ends by the support 601, and piezoelectric elements 603 attached to both surfaces of the metal body 602. ing.

  The power generation operation of the above embodiment will be described. When the press apparatus main body 100 placed on the vibration isolation mechanism 400 performs press processing, the press apparatus main body 100 vibrates, and the vibration causes the top plate 405 to vibrate in the vertical direction. When the top plate 405 vibrates in the vertical direction, the beam 501 integrated with the top plate 405 vibrates in the vertical direction, and the head portion 512a of the pressing portion 510 attached to the beam 501 moves the metal body 602 downward. The metal body 602 is bent by pressing, and the piezoelectric element 603 attached to the surface of the metal body 602 bends as the metal body 602 bends. Therefore, the piezoelectric element 603 can bend and generate electric power by effectively using the vibration energy of the press apparatus main body 100 during the press working operation.

  According to the first aspect of the present invention and the second aspect of the present invention, the press apparatus main body 100 is pressed by generating electric power by inertia energy and vibration energy sufficiently accumulated in the flywheel 117 of the press apparatus main body 100 during the press working operation. The energy possessed during the processing operation can be used effectively.

DESCRIPTION OF SYMBOLS 1 Press apparatus 100 Press apparatus main body 117 Flywheel 133 Slider 142 Balancer main body 200 Generator 300 Motion transmission mechanism 301 Link 302 Pulley 304 Arm 400 Anti-vibration mechanism 405 Top plate 500 Pressing means 513 Pressing spring 603 Piezoelectric element D Press molding die

Claims (2)

An anti-vibration mechanism;
A press device body placed on the vibration isolation mechanism;
A pressing means that vibrates with the vibration part, attached to the vibration part of the anti-vibration mechanism that vibrates by pressing of the press device main body;
A press device comprising: a piezoelectric element that is disposed in the vicinity of the pressing means and that is repeatedly pressed by the vibration of the pressing means and flexes repeatedly to generate electric power.   The press apparatus according to claim 1, wherein the pressing means repeatedly presses the piezoelectric element through an elastic body.

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