JP3829470B2 - Plate material transfer device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plate material conveying apparatus that separates stacked plate materials one by one and conveys them to a plate material processing machine such as a punch press or a laser beam machine.
[0002]
[Prior art and problems to be solved by the invention]
Conventionally, plate processing machines such as punch presses use a suction transfer type plate material transfer device that runs along the installation rail, and lifts the plate materials stacked on the material table one by one to the work table of the plate material processing machine. is doing. For example, the plate material conveying device is configured by providing an elevating frame on a traveling platform that runs along a construction rail, and a plurality of negative pressure suction pads that adsorb the plate material to the elevating frame.
[0003]
However, in the above configuration, when a power failure occurs during conveyance, the vacuum pump connected to the suction pad stops, the suction force of the suction pad is lost, and the plate material falls.
[0004]
In addition, it is possible to use a permanent magnet as a means for lifting the plate material. According to this, there is no problem of dropping due to a power failure, but when the laminated plate material is magnetically attached and lifted, the second plate material is used. Even magnetic force reaches. Therefore, it is difficult to separate and lift only one sheet.
[0005]
An object of the present invention is to solve such a problem, and to provide a plate material conveying device that can easily separate a single plate material and that does not drop even if a power failure occurs during conveyance.
[0006]
[Means for Solving the Problems]
The plate material conveying apparatus of the present invention includes a plate material adsorption means for adsorbing and separating the uppermost plate material from the laminated portion of the plate materials with a negative pressure, a plate material magnetizing means for holding the separated plate material with a permanent magnet, and the plate material magnetism. Traveling means equipped with wearing means and traveling.
According to this configuration, when the uppermost plate member is separated and lifted from the laminated portion of the plate members, since the negative pressure suction of the plate member suction means is performed, only one plate member can be reliably separated and lifted. Further, since the separated plate material is held and transported by the magnetic adhesion of the plate material magnetizing means made of permanent magnets, even if a power failure occurs during the transportation, the holding is not released and the plate material does not fall. Since the holding by the plate material magnetizing means is performed by a permanent magnet, the plate material can be held only by contacting the surface of the plate material.
[0007]
In the above configuration, the plate material adsorbing means can be raised and lowered to separate the plate materials, the plate material magnetizing means is provided at a predetermined elevation height position of the plate material adsorbing means, and the plate material adsorbing means removes the separated plate material from the predetermined material . It is assumed that the plate material is magnetically attached to the plate material magnetizing means by being lifted up and down.
In this case, when the plate material adsorbing means descends from the traveling means to the uppermost layer of the laminated portion of the plate materials, separates the plate material and lifts it to the standby height of the plate material magnetic adhesion means, the lifted plate material is It is magnetized by the magnetizing means and the preparation for conveyance is completed. As described above, since the delivery can be performed simply by lifting the plate material by the plate material adsorption means, complicated control is not required for delivery of the plate material from the plate material adsorption means to the plate material magnetic adhesion means, and in particular, control of the plate material adhesion means is unnecessary. And delivery can be performed easily.
The plate material magnetizing means may use a permanent magnet capable of releasing the magnetic force by energization. By using a material that can release magnetic force by energization in this way, it is possible to easily release the plate material from the permanent magnet.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a schematic front view of a plate material processing line provided with the plate material conveying device. The installation rail 3 is supported by the support column 4 over the plate material processing machine 1 and the plate material base 2 on which the plate materials W are laminated, and a plate material loader 5 as a plate material conveying device is provided along the installation rail 3 so as to be able to travel. It is done. The plate material loader 5 is driven to travel by traveling drive means comprising a chain 7 or the like connected to a motor 6 or self-propelled traveling drive means (not shown). The plate material processing machine 1 is composed of, for example, a turret type punch press.
[0009]
The plate material loader 5 includes a traveling platform 8 that can travel along the installation rail 3, and a lifting frame 9 that is attached to the traveling platform 8 and is driven up and down by a lifting mechanism 10. The elevating mechanism 10 is composed of the elevating cylinder 11 and the guide rod 12, but it may be a parallel link type or a hanging type using a wire rope. In the elevating frame 9, a plate material adsorbing means 13 that adsorbs the uppermost plate material of the plate material W stacked on the plate material table 2 by negative pressure and separates it, and a plate material magnetic adhesion means 16 that holds the separated plate material W. And are provided. The plate material adsorbing means 13 includes a plurality of adsorbing pads 14 and 15, and the plate material adhering means 16 includes a plurality of magnetic adhering pads 17. The magnetized pad 17 is used to hold the plate material W by the magnetic force of a permanent magnet and can be used to release the magnetic force by energization.
[0010]
The suction pads 14 and 15 include a plurality of suction pads 14 for separation and conveyance arranged vertically and horizontally, and two suction pads 15 for positioning. The separation / conveyance suction pad 14 is used for both separation and conveyance of the plate material W, and can be moved up and down by an elevating device 18 including a cylinder device fixed to the elevating frame 9. The suction pad 15 for positioning is used for both separation and conveyance of the plate material W and positioning of the plate material W on the work table 19 (FIG. 3) of the plate material processing machine 1, and is positioned in a horizontal posture. Attached to the cylinder 21. As shown in FIG. 3, the positioning cylinder 21 can be swung around the vertical support shaft 22 with respect to the lifting frame 9, and is conveyed in the conveying direction (X direction) by a spring member (not shown). And a neutral position that is inclined with respect to the direction (Y direction) perpendicular thereto. Further, the positioning cylinder 21 is attached to the lifting frame 9 so as to be lifted by a lifting device 23 composed of a cylinder device or the like.
The suction pads 14 and 15 are connected to a vacuum source (not shown) such as a vacuum pump through a flexible tube.
[0011]
Each magnetic pad 17 constituting the plate magnetic adhesion means 16 is provided at a predetermined elevation height position of each suction pad 14, 15.
The suction pads 14 and the magnetized pads are distributed throughout the plane area of the lifting frame 9. In FIG. 1B, the magnetic pad 17 is indicated by hatching for the sake of clarity in the drawing.
[0012]
Next, separation and conveyance operations of the plate material W by the plate material loader 5 having the above-described configuration will be described with reference to FIGS. 4 and 5.
First, in a state where the plate material loader 5 is in a standby state above the plate material table 2, the lifting frame 9 is lowered by a predetermined height by driving the lifting mechanism 10, and the suction pads 14, 15 constituting the plate material suction means 13 are moved. Then, it is lowered by driving these elevating devices 18 and 23 and adsorbed to the uppermost layer of the plate material W stacked on the plate material table 2 (FIG. 4A).
[0013]
Next, each suction pad 14, 15 is raised to a height position where the magnetized pad 17 stands by by driving these lifting devices 18, 23. As a result, the sheet material W adsorbed by each of the suction pads 14 and 15 is separated from the laminated portion of the plate material W and lifted, and is also magnetically attached to each magnetic pad 17 (FIG. 4B). In this case, the plate material W separated by the suction pads 14 and 15 can be held by the magnetic pad 17 simply by raising the suction pads 14 and 15, so that the plate material suction means 13 composed of the suction pads 14 and 15. Therefore, the delivery of the plate material W to the plate material magnetic adhesion means 16 composed of the magnetic adhesion pad 17 can be performed easily and smoothly without using a complicated control mechanism. Next, the lifting frame 9 is raised to the original height position by driving the lifting mechanism 10 (FIG. 4C).
[0014]
In this way, the plate material loader 5 is transported along the installation rail 7 to the upper position of the plate material processing machine 1 in a state where the single sheet material W is held in cooperation with the suction pads 14 and 15 and the magnetized pad 17. (FIG. 5A). Even if a power failure occurs during the conveyance and the holding of the plate material W by the suction pads 14 and 15 is released, the plate material W is also magnetized by the magnetized pad 17 of the permanent magnet. Never fall off.
[0015]
When traveling above the plate material processing machine 1, the lift mechanism 10 is driven to lower the lift frame 9 from the work table 19 of the plate material processing machine 1 until the plate material W reaches a predetermined height (for example, 50 mm) (FIG. 5 ( B)). Next, the magnetic force of the magnetic pad 17 is released by energization, the holding of the plate material W by the plate material magnetic bonding means 16 is released, and the plate material W is held only by the suction pads 14 and 15. In this state, the suction pads 14 and 15 are lowered by these lifting and lowering devices 18 and 23 to a height position at which the plate material W is placed on the work table 19 of the plate material processing machine 1 (FIG. 5C). ). Next, the holding of the plate material W by the separation and transfer suction pads 14 is released, and the suction pads 14 are raised to their original standby positions by the lifting device 18, and then the positioning suction pads 15 are The positioning cylinder 21 is driven to advance in an oblique direction. Accordingly, one side of the plate material W parallel to the transport direction is in contact with the work holder 20 of the plate material processing machine 1 that grips the plate material W, and is parallel to the direction (Y direction) orthogonal to the transport direction (X direction). The other side of W comes into contact with an end locator (not shown) provided on the work table 19 so that the plate material W is correctly positioned on the work table 19 (FIG. 5D).
[0016]
When the positioning of the plate material W is completed, the holding of the plate material W by the suction pad 15 is released, the suction pad 15 is retracted by driving the positioning cylinder 21, and further lifted to the original standby position by the lifting device 23, and then lifted and lowered. After the frame 9 is raised to the original height, the plate material loader 5 is moved horizontally above the plate material table 2. By repeating the above operation, the plate material W stacked on the plate material table 2 is conveyed and positioned one by one on the work table 19 of the plate material processing machine 1.
[0017]
In the embodiment described above, the suction pad 14 for separating the single plate material W is provided on the traveling base 8 of the plate loader 5. However, the present invention is not limited to this, and is fixedly installed near the plate base 2, for example. Further, a suction pad 14 for separating one sheet W may be provided on a frame (not shown) or the like so as to be movable up and down.
[0018]
【The invention's effect】
The plate material conveying apparatus of the present invention includes a plate material adsorption means for adsorbing and separating the uppermost plate material from the laminated portion of the plate materials with a negative pressure, a plate material magnetizing means for holding the separated plate material with a permanent magnet, and the plate material magnetism. Since the traveling means equipped with the landing means is provided, the plate materials can be reliably separated and conveyed one by one, and even if a power failure occurs during the conveyance, the plate material can be prevented from falling.
The plate material adsorbing means is movable up and down to separate the plate materials, the plate material magnetizing means is provided at a predetermined elevation height position of the plate material adsorbing means, and the plate material separated by the plate material adsorbing means is moved up and down the predetermined level. Since it is assumed that it is lifted up to a height position and magnetically attached to the plate material adhering means, it can be transferred to the plate material adhering means simply by lifting the plate material by the plate material adsorbing means, and the preparation for conveyance is completed. Complex control is not required for delivery of the plate material to the plate magnetizing means, and in particular, control of the plate magnetizing means is not required, and the delivery can be easily performed.
Further, when the plate material magnetizing means that can release the magnetic force by energization is used, the holding of the plate material can be easily released.
[Brief description of the drawings]
FIG. 1A is a front view of an essential part of a plate material conveying apparatus according to an embodiment of the present invention, and FIG.
FIG. 2 is a schematic front view of a plate material processing line including the plate material conveying device.
FIG. 3 is a side sectional view of the plate material conveying apparatus.
FIG. 4 is an explanatory view showing a plate material separating operation by the plate material conveying apparatus.
FIG. 5 is an explanatory diagram showing a plate material conveyance / positioning operation by the plate material conveyance device;
[Explanation of symbols]
8 ... Traveling platform (traveling means)
DESCRIPTION OF SYMBOLS 9 ... Elevating frame 10 ... Elevating mechanism 13 ... Plate material adsorption | suction means 14, 15 ... Adsorption pad 16 ... Plate material magnetic adhesion means 17 ... Magnetic adhesion pad 18, 23 ... Elevator

Claims (2)

The plate material adsorbing means for adsorbing and separating the uppermost plate material from the laminated portion of the plate material with a negative pressure, the plate material magnetizing means for holding the separated plate material with a permanent magnet, and the plate material magnetizing means are equipped to travel. Bei example a traveling means, the plate suction means is movable up and down in order to separate the plate material, plate material magnetically attached unit is provided at a predetermined elevation height position of the sheet suction unit, the plate suction means A plate material transporting device that lifts the separated plate material to the predetermined elevation height position and magnetically attaches the plate material to the plate material magnetizing means . The plate magnetic attraction means sheet material conveying apparatus according to claim 1 Symbol placement are those capable of magnetic force released by energization.

Images