JP2011026100A - Work blocking device of automatic aligning apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a workpiece blocking device capable of surely attaining workpiece blocking without damaging a workpiece while grasping and reducing the number of movable parts with a simple structure. <P>SOLUTION: This automatic alignment apparatus aligns and stores workpieces in each of a plurality of storage holes drilled in an alignment pallet by giving vibration to the alignment pallet placed on a table. A suction blocking portion composed of a plurality of suction holes smaller than a workpiece is formed in such a direction as to cross the table between a workpiece movement portion and an alignment portion in the table to suck air from the suction holes, thereby to suck and capture the workpiece for formation of a workpiece blocking. The suction holes are composed of round holes small enough not to interfere with workpiece movement, and the great many suction holes are connected to the suction pump. Further, the suction holes are arranged in a staggered configuration at a sufficiently smaller pitches than a workpiece length. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an automatic alignment apparatus which places an alignment pallet on a table and applies vibrations to arrange and store the work in a storage hole, and dams the work in order to adjust the movement and supply amount of the work to the alignment pallet. It relates to the device.

The automatic alignment apparatus is provided with means for applying vibration to the alignment pallet and work moving means for distributing the work from the work supply device to the entire alignment pallet under the table on which the alignment pallet is placed.
As the workpiece moving means, there are a method of swinging the table (Patent Document 1), a method of tilting the table in one direction and dropping naturally, a method of applying vibration in the front-rear direction of the table (moving direction of the workpiece), and the like. is there.

For example, as shown in FIG. 4, an alignment pallet 2 is placed on one end of the table 1, a work supply device 3 is provided on the other end, and the work 4 is moved from the work supply device 3 by the various means. The work 4 is supplied to the alignment pallet 2.
The alignment pallet 2 has 15000 to 18000 storage holes 12, and if the amount of the work 4 supplied is too large, it will interfere with the storage and storage in the storage holes 12, and if it is too small, the storage efficiency will deteriorate. . The amount of the work 4 supplied to the alignment pallet 2 needs to be adjusted to about 70 to 80% of the number of the storage holes 12. Therefore, when a proper amount of workpieces 4 is supplied from the workpiece supply device 3 to the alignment pallet 2, a damming device is provided to prevent the movement of the workpieces 4 in order to stop the supply.
In this conventional damming device, the workpiece is dammed by lowering the shutter 20 made of a material such as soft rubber onto the table 1 or protruding from below so as not to damage the workpiece.

JP-A-11-292256

  In a conventional damming device using the shutter 20, the workpiece 4 is sandwiched between the shutter 20 and the table 1 when the shutter 20 is closed, and the damming device cannot be completely dammed, or the shutter 20 is a soft rubber or the like. However, there is a problem in that an unnecessary external force is applied to the work 4 to be rubbed against each other and damaged or deformed. In addition, there is a problem that the mechanism becomes complicated because the number of mechanically movable parts for opening and closing the shutter 20 increases.

  It is an object of the present invention to provide a workpiece damming device that can reliably dam a workpiece without being damaged or deformed with the workpiece sandwiched therebetween, and having a simple configuration.

  The present invention provides an automatic alignment apparatus for aligning and storing workpieces in a plurality of storage holes formed in the alignment pallet by applying vibration to the alignment pallet placed on the table, and moving the workpiece in the table and the alignment pallet. A suction dam part consisting of a plurality of suction holes sufficiently smaller than the work is provided in the direction crossing the table between the mounting part and the work is sucked and captured by sucking air from the suction holes. It is a workpiece damming device of an automatic alignment device characterized by forming a dam and damming.

  The suction hole consists of a large number of small-diameter round holes that do not interfere with the movement of the workpiece. By connecting these many suction holes to a suction pump and sucking air, the workpiece is sucked and trapped to block the workpiece. The workpiece damming device for an automatic alignment device according to claim 1.

3. The work damming device for an automatic alignment apparatus according to claim 1, wherein the suction holes are arranged in a staggered pattern with a sufficiently smaller pitch than the work length.

  According to the first aspect of the present invention, it is possible to reliably dam the workpiece without damaging the workpiece, and to construct the workpiece damming device with a simple configuration with few movable parts. Have.

  According to the second and third aspects of the invention, when the damming device is not movable, the movement of the workpiece is not hindered, and when the damming device is movable, the workpiece can be reliably adsorbed and dammed. It has an effect.

The table incorporating the workpiece | work damming apparatus by this invention is shown, (a) is a top view, (b) is a sectional side view. It is sectional drawing which shows the effect | action of the damming apparatus of the workpiece | work by this invention. The suction dam part of the damming apparatus of the workpiece | work by this invention is shown, (a) is an enlarged plan view, (b) is an expanded sectional view. It is explanatory drawing which shows the table of the conventional automatic alignment apparatus.

  The workpiece damming device of the automatic alignment device of the present invention is the automatic alignment device for aligning and storing the workpieces in a plurality of storage holes formed in the alignment pallet by applying vibration to the alignment pallet placed on the table. By providing a suction weir part composed of a plurality of suction holes sufficiently smaller than the work in a direction crossing the table between the work moving part and the alignment pallet placing part in the table, and sucking air from this suction hole The workpiece is sucked and captured to form a workpiece weir and stop it. The suction hole is composed of a large number of small-diameter round holes that do not hinder the movement of the workpiece, and the numerous suction holes are connected to a suction pump. The suction holes are arranged in a staggered manner at a pitch sufficiently smaller than the work length.

The workpiece damming device of the automatic alignment apparatus of the present invention will be described with reference to FIGS. In the present embodiment, an automatic alignment apparatus that moves and stores the work 4 by applying vibrations while swinging the table 1 will be described.
The table 1 has a moving part 5 on which the workpiece 4 supplied on one side moves and a pallet placing part 6 on which the alignment pallet 2 is placed on the other side, and the suction between the moving part 5 and the pallet placing part 6 is performed. A dam portion 9 is provided, and a frame 15 surrounding the entire table 1 is provided. The workpiece supply device 3 is arranged on the moving unit 5, and the alignment pallet 2 is placed on the pallet placing unit 6.
The moving means may be any means such as a method of swinging the table 1, a method of tilting the table 1 or a method of applying vibration in the front-rear direction.

The suction weir portion 9 is arranged in a strip shape across the table 1, and as shown in FIGS. 3 (a) and 3 (b), a suction hole having a very small diameter that is extremely small compared to the size of the workpiece and does not hinder the movement of the workpiece. A large number of holes 10 are formed. For example, if the workpiece 4 is about 1 mm, suction holes 10, 10..., 10 having a diameter of 0.2 mm are arranged in a zigzag pattern with a pitch of 0.4 mm in the belt-like suction weir portion 9 having a width of 20 mm. It is installed.
The suction holes 10, 10... 10 are connected to a suction pump 13 through an air chamber 11 provided on the lower side of the table 1.
The table 1 is supported by a pedestal 14 provided with a vibration oscillating device (not shown) that applies vibration and oscillation to the table 1.

Next, the operation of the damming device having the above configuration will be described.
The alignment pallet 2 is placed on the table 1, the work supply device 3 is placed on the supply unit 5, and the vibration swing device is operated. Immediately after starting the operation, the swinging causes the table 1 to tilt in the direction in which the workpiece 4 moves from the workpiece supply device 3 toward the alignment pallet 2 and stops at an appropriate angle.
The workpiece 4 passes through the suction weir portion 9 and is gradually supplied to the alignment pallet 2 and stored in the storage hole 12. When an appropriate amount with the best storage efficiency (for example, 70 to 80% of the number of storage holes) passes through the suction weir unit 9, the suction pump 13 is operated to suck air from the suction holes 10, 10,. Then, the workpiece 4 passing over the suction weir portion 9 is attracted and stopped, and the subsequent workpiece 4 supplied from the workpiece supply device 3 is blocked.
Since the moving workpieces 4 are not necessarily arranged in a flat manner, flat ones, standing ones, diagonal ones, etc. are stacked in a plurality of stages to form a weir.
In this state, the table 1 is started to swing, and is swung so that the direction of the work 4 in the traveling direction changes with time. When all the workpieces 4 are stored in the storage holes 12, the table 1 is leveled, the vibration swinging device is stopped, and the alignment pallet 2 is removed from the table 1.

In the above embodiment, an example in which the present invention is applied to an automatic alignment device that swings the table 1 has been described. However, the present invention is not limited to this, and the table 1 is fixed at a certain angle of inclination and is Even in the automatic alignment device in which the workpiece 4 is moved and is not stored in the storage hole 12 is recovered by a downstream recovery pallet or recovery device, vibration or movement of the table 1 can be performed without providing an inclination. Therefore, the present invention can be applied to an automatic alignment device that advances the workpiece 4 by the above-described method.
It is particularly effective when adjusting the supply amount of workpieces with an automatic alignment device that continuously and automatically stores multiple alignment pallets while moving the alignment pallets on a conveyor-like table inclined. is there.

  DESCRIPTION OF SYMBOLS 1 ... Table, 2 ... Alignment pallet, 3 ... Work supply apparatus, 4 ... Work, 5 ... Supply part, 6 ... Pallet mounting part, 7 ... Collection | recovery part, 8 ... Collection pallet, 9 ... Suction weir part, 10 ... Suction A hole, 11 ... an air chamber, 12 ... a storage hole, 13 ... a suction pump, 14 ... a base, 15 ... a frame of a table.

Claims (3)

In an automatic alignment apparatus that aligns and stores workpieces in a plurality of storage holes formed in the alignment pallet by applying vibration to the alignment pallet placed on the table,
A suction weir portion comprising a plurality of suction holes sufficiently smaller than the workpiece is provided in a direction crossing the table between the workpiece moving portion and the alignment pallet placement portion in the table, and air is sucked from the suction holes. A workpiece damming device of an automatic alignment device characterized in that the workpiece is sucked and captured to form a dam of the workpiece and dammed up.   The suction hole consists of a large number of small-diameter round holes that do not interfere with the movement of the workpiece. By connecting these many suction holes to a suction pump and sucking air, the workpiece is sucked and trapped to block the workpiece. The workpiece damming device for an automatic alignment device according to claim 1.   3. The work damming device for an automatic alignment apparatus according to claim 1, wherein the suction holes are arranged in a staggered manner at a pitch sufficiently smaller than the work length.

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