JPH1080530A - Device for inverting workpiece for manufacturing game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance operating safety and productive efficiency by making it easy to take a working position toward a processing device on upstream and downstream lines even when blocks are formed after inversion. SOLUTION: An upstream line 2 is set at a lower level and a downstream line 3 at an upper level, and an inverting unit 5 is provided in an installation space 4 formed between the lines. The rotary central shaft 5b of the inverting unit is placed in a vertically bifurcating position between the upstream and downstream lines 2, 3, and after a workpiece 6 conveyed on the upstream line 2 is received by an arm 5c or 5d that has been stopped to correspond to the upstream line 2 when the rotary central shaft 5b stopped, the workpiece 6 is turned upside down by rotating the rotary central shaft 5b by 180 degrees, and is delivered to the downstream line 3 from the arm 5c or 5d.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for reversing an object to be processed such as a game board or a game board when manufacturing a game machine such as a pachinko machine.

[0002]

2. Description of the Related Art In a pachinko machine maker, a reference hole or a guide rail for positioning a work in a cell bonding process in which a design sheet is drawn on one side surface of a game board such as a plywood board and a post-process. Multi-axial hole emptying process for cutting mounting holes, gauge press process for punching pilot holes for mounting game nails and game function components, router process for cutting openings for mounting game function components, nails for driving game nails The game board (gauge board) is manufactured through a hitting process, an assembly process of attaching a guide rail and a game function component, an inspection process of checking whether the game function component operates normally, and the like. In such a game machine manufacturing process, the game board may be turned upside down, for example, in order to perform back digging in a router process or to attach a back functional component in an assembly process.

[0003]

However, there are many ancillary facilities, and it has been desired to reduce the size of the apparatus.

Accordingly, an object of the present invention is to provide an apparatus for reversing the object to be processed for manufacturing a gaming machine, which can simplify the apparatus configuration and improve the production efficiency.

[0005]

According to a first aspect of the present invention, there is provided an apparatus for reversing a product to be processed for manufacturing a gaming machine, comprising separating a conveying line into an upstream line and a downstream line, and connecting one of the upper and downstream lines. The lower unit and the other unit are set to the upper unit, and the reversing unit is provided in the installation space formed between them. A rotation center axis that performs an intermittent rotation motion that repeats rotation and stop every degree, and one or both of a carry-out end of an upstream line and a carry-in end of a downstream line provided at the rotation center axis when the stop is performed. After receiving the workpiece to be carried out from the upstream line with the arm stopped corresponding to the upstream line, the rotation center axis is rotated 180 degrees to reverse the front and back of the workpiece And the processing Is characterized in that article was to pass downstream line from the arm. This claim 1
According to the above configuration, the transfer line is separated into the upstream and downstream sides, and the reversing unit is provided in the installation space between the lower line and the upper line, and the upstream line of the reversing unit is provided. After receiving the object to be carried out from the upstream line by the stopped arm, the reversing unit is rotated 180 degrees to turn the front and back of the object to be processed, and the object to be processed is received on the downstream line from the arm. By handing over, the device configuration can be simplified. If you set the upstream line at the bottom and the downstream line at the top,
It is possible to gain space for forming blocks on the downstream line side, and even when forming blocks after inversion,
It is possible to easily take a working posture to the processing device in the upstream and downstream lines, thereby improving work safety and production efficiency. If the rotation center axis of the reversing unit is provided with two sets of arms corresponding to the carry-out end of the upstream line and the carry-in end of the downstream line when the reversing unit is stopped, the processing object is formed every 1/2 rotation of the rotation center axis. The product can be transported upside down from the upstream line to the downstream line and transported. Even if the transport line is set to have a short time interval for transporting a plurality of workpieces in order, the rotation center Compared to the case where a pair of arms are provided,
The rotation speed of the rotation center axis can be set to low,
It is possible to prevent the object to be processed from jumping out of the rotating arm. The pair of left and right bifurcated fingers formed at the end of the arm of the reversing unit are spaced at a wider interval than the width of the carry-out end of the upstream line and the width of the carry-in end of the downstream line, and are wider than the width of the workpiece. When facing each other with a narrow gap, the fingers can accept both sides in the transport direction of the workpiece without forcibly pinching the workpiece, and the posture of the workpiece during inversion is stabilized by the fingers. Can be kept. Providing the stoppers on the left and right sides outside the groove bottoms of the fingers of the reversing unit can also eliminate the inconvenience that the object to be processed, which is being turned upside down, falls laterally off the fingers.

[0006]

1 and 2 show one embodiment of the present invention. In FIG. 1, the transport line 1 is separated into an upstream line 2 and a downstream line 3, and the carry-out side end of the upstream line 2 is set to the lower side, and the carry-in side end of the downstream line 3 is set to the upper side. The reversing unit 5 is disposed in an installation space 4 formed between the downstream line 2 and the downstream line 3.

[0007] The upstream line 2 and the downstream line 3 are arranged in parallel at a predetermined interval in the conveying direction X of the workpiece 6 between a pair of conveyor frames 2a, 3a facing each other. It is a roller conveyor with a similar structure arranged. In the upstream line 2, for example, the workpiece 6 discharged from the gauge press process is mounted with its punched surface of the pilot hole facing upward. The workpiece 6 is mounted on the downstream line 3 with the prepared hole of the prepared hole facing downward.

The reversing unit 5 is provided with a motor 5a at a vertically divided position between the upstream line 2 and the downstream line 3.
And has a rotation center axis 5b that performs intermittent rotation that repeats rotation and stop in the W direction every 180 degrees.
b, two arms 5c and 5 corresponding to the carry-out end of the upstream line 2 and the carry-in end of the downstream line 3 at the time of the stop.
d. A pair of left and right bifurcated fingers 5e, 5f formed at the distal ends of the arms 5c, 5d are formed at intervals larger than the width of the carry-out end of the upstream line 2 and the width of the carry-in end of the downstream line 3. The target products 6 face each other with a smaller interval than the width. When the finger 5e of one arm 5c is positioned so as to correspond to the carry-out end of the upstream line 2, the finger 5f of the other arm 5d is positioned corresponding to the carry-in end of the downstream line 3. The fingers 5e, 5f are provided with stoppers 5g, 5h for preventing lateral displacement of the workpiece 6 received in the grooves of the fingers 5e, 5f on the left and right sides from the bottom of the groove forming the fork. An end of the rotation center shaft 5b opposite to the motor 5a is provided with an encoder 5i for detecting a rotation position when controlling intermittent rotation.

Above the downstream line 3, there is provided a handling mechanism 7 capable of moving up and down and transporting. The handling mechanism 7 has a slide base 7d coupled to a timing belt 7c wound around the front and rear pulleys 7a and 7b, and one of the front and rear pulleys 7a and 7b is driven to rotate by a motor (not shown). And slide base 7d
Reciprocate in horizontal directions X1 and X2 parallel to the transport direction X. When the slide base 7d is reciprocatingly driven, the slide base 7d is slidably engaged with a guide rail (not shown) to restrict the vibration in the vertical direction.

The handling mechanism 7 has a chuck portion 7f coupled to a chuck cylinder 7e as an elevating actuator attached to a slide base 7d, and drives the chuck cylinder 7e up and down to move the chuck portion 7f in the transport direction X. Up and down in a vertical direction Z orthogonal to The chuck portion 7f has a plurality of suction pads 7h provided on a lift base 7g connected to a piston rod of a chuck cylinder 7e. The lift base 7g is prevented from swinging on the slide base 7d by a guide mechanism including a guide post (not shown) and a slider slidingly engaged with the guide post. The plurality of suction pads 7h are connected to a vacuum source such as a vacuum pump (not shown) via a valve (not shown),
When a vacuum source (not shown) is in operation, a valve (not shown) is opened, and the suction pad 7h sucks and holds the workpiece 6 by an operation of sucking outside air, while the valve is closed. Then, the suction suction of the suction pad 7h to the workpiece 6 is released by the operation of releasing the suction pad 7h to the atmosphere.

At the side of the downstream line 3, a chuck portion 7f
The block forming mechanism 8 is located immediately below the end side in the carrying direction X1 of the vehicle.
Is arranged. The block forming mechanism 8 includes upper and lower sprockets 8a (only the upper sprocket 8a is shown in FIG. 1 and the lower sprocket is omitted from the drawing because it is located at a position hidden by a cradle 10 described later). It has a lift frame 8c coupled to the wound chain 8b, and one of the upper and lower sprockets 8a is rotated by a motor (not shown) to move the lift frame 8c up and down. Product to be processed 6
Each time a lift frame 8c is received, the rotation of a motor (not shown) is controlled to lower the lift frame 8c by a distance corresponding to the thickness of one workpiece 6 so that the lift frame 8c The work block 9 (see FIG. 2 d) is formed by stacking the object to be processed 6, which has been turned upside down, by repeating the stepping down every time it is mounted.

The block forming mechanism 8 has a plurality of rollers 8d arranged in parallel on a lift frame 8c at predetermined intervals in a transport direction Y orthogonal to the transport direction X in a plane, and the number of workpieces 6 of the work block 9 is set in advance. When the set quantity is reached and the lift frame 8c descends and arrives at the receiving table 10 installed immediately below the roller, the roller 8d starts the transport operation and sends out the work block 9 in the transport direction Y.

The work block 9 carried out by the block forming mechanism 8 is received by a transfer line 11 provided in front of the transfer direction Y and is transferred in a predetermined direction. In a predetermined direction of the transport line 11, for example, an unmanned transport vehicle that transports the workpiece 6 to a router process (not shown) is waiting.

According to this embodiment, as shown in FIG. 2A, one arm 5c corresponds to the upstream line 2,
In a state where the other arm 5d corresponds to the downstream line 3 and the rotation center shaft 5b is stopped, the workpiece 6 is transported to the transport side end of the upstream line 2 and
c enters the groove of the forked finger 5e.

When the receiving sensor (not shown) detects the object 6 to be processed, as shown in FIG. 2B, the rotation center shaft 5b is driven to rotate upward (in the W direction) by 180 degrees. Thereby, the processing target product 6 is turned upside down and reaches the carry-in end of the downstream line 3 from above.

When the arrival sensor (not shown) detects the arrival of the object 6 to be processed, as shown in FIG.
The downstream line 3 starts the transport operation. The reversing unit 5 of this embodiment is configured such that the arrival sensor detects the disappearance of the processing target product 6 after the arrival detection of the processing target product 6 and the on signal that the receiving sensor detects the presence of the processing target product 6. When the AND condition is satisfied, an intermittent rotation motion that repeats rotation and stop every 180 degrees is performed.

On the other hand, the object 6 to be processed with the front and back reversed is shown in FIG.
7c, the chuck portion 7f which is separated from the position shown by the dotted line to the position shown by the solid line and stopped above the end side of the downstream line 3
And the chuck portion 7f descends from the imaginary line position to the solid line position to detect the processing target product 6 by an end sensor (not shown) provided on the downstream line 3. After being held by suction and suction, the ascent is returned.

Subsequently, as shown in FIG. 2D, the timing belt 7c is rotationally driven in the direction X1 in the same direction as the transport direction X of the downstream line 3 as one direction, and the processing held by the chuck portion 7f. The target article 6 is transported from the position indicated by the virtual line in FIG. At that position, the chuck 7f descends to the solid line position in the figure, and when the workpiece 6 arrives at or near the roller 8d of the lift frame 8c, the suction of the chuck 7f is released to the atmosphere. , The object 6 to be processed is roller 8d
To be mounted on.

Thereafter, the lift frame 8c is lowered by a distance corresponding to the thickness of one workpiece 6 to be processed. When the lift frame 8c repeats the step-down movement every time the workpiece 6 is mounted, the workpieces 6 that are turned upside down are stacked as shown in FIG. 2D to form the work block 9. .

After the opening of the chuck 7f, the chuck 7f moves in the opposite direction on the same path, returns to the position where it is stopped above the downstream end of the downstream line 3 at the transport end side, and returns to the next inverted workpiece Start preparations for receiving article 6.

Further, the downstream line 3 reduces the transport speed by detecting an object 6 to be processed by an unillustrated speed control sensor provided in front of an unillustrated end sensor, and the end sensor detects the processing object. By detecting the article 6, the transport operation is stopped.

Then, after the number of workpieces 6 of the work block 9 reaches a predetermined number, the block forming mechanism 8 lowers the lift frame 8c and places it on the receiving table 10 installed immediately below the lift frame 8c. Upon arrival, the transport operation of the roller 8d is started, and the work block 9 is sent out in the transport direction Y.

In short, in this embodiment, the transport line 1 is divided into upper and lower lines 2 and 3, and the installation space between the lower upstream line 2 and the upper downstream line 3 is set. 4, a reversing unit 5 is provided, and after one of the arms 5c stopped corresponding to the upstream line 2 of the reversing unit 5 receives the workpiece 6 carried out from the upstream line 2, the reversing unit 5 is removed by 180. Since the object to be processed 6 is turned upside down and turned over, and the object to be processed 6 is transferred from one arm 5c to the downstream line 3, the work block 9 is formed on the downstream line 3 side. You can earn space.

In the reversing unit 5, the rotation center shaft 5b, which is disposed at an equally-divided position in the vertical direction between the upstream line 2 and the downstream line 3, performs an intermittent rotation in which rotation and stop are repeated every 180 degrees. Then, one of the arms 5c and 5d provided on the rotation center shaft 5b and stopped corresponding to the upstream line 2 is a workpiece 6 to be carried out from the upstream line 2.
Since the rotation center axis is rotated by 180 degrees after receiving this, the object to be processed 6 is turned upside down, and the object to be processed 6 is transferred to the downstream line 3 from the one arm 5c or the arm 5b. In addition, the device configuration can be simplified.

When the rotation center shaft 5b of the reversing unit 5 is stopped, two sets of arms 5c and 5d corresponding to the carry-out end of the upstream line 2 and the carry-in end of the downstream line 3 are provided. The workpiece 6 can be inverted and transported from the upstream line 2 to the downstream line 3 every half rotation of the shaft 5 b, and the transport line 1 is provided with a plurality of workpieces 6.
Even if the feed time interval (tact) for sequentially transporting is set to a short time, the rotation speed of the rotation center shaft 5b can be set to be lower than that in the case where one set of arms is provided on the rotation center shaft 5b. It is possible to prevent the workpiece 6 from jumping out of the rotating arms 5c and 5d.

A pair of left and right bifurcated fingers 5e and 5f formed at the tips of the arms 5c and 5d are spaced apart from the width of the carry-out end of the upstream line 2 and the width of the carry-in end of the downstream line 3. And at a narrower interval than the width of the workpiece 6, the fingers 5e, 5f do not forcibly pinch the workpiece 6, and the fingers 5e, 5f move the workpiece 6 in the transport direction X. Only by accepting both sides, the posture of the processing target product 6 being turned upside down can be stably maintained.

Since the stoppers 5g and 5h are provided on the left and right sides outside the groove bottoms of the fingers 5e and 5f, the inconvenience of the workpiece 6 being turned upside down and falling sideways from the fingers 5e and 5f is also eliminated. can do.

In this embodiment, the case where two sets of arms 5c and 5d are provided on the rotation center shaft 5b is illustrated and described.
The rotation center shaft 5b corresponds to a mode in which only one of the arms 5c and 5d is provided on the rotation center shaft 5b.
However, in this case, the reversal of the workpiece 6 is completed by one rotation of the rotation center shaft 5b.

The conveyor frames 2a, 3 of the transport line 1
A guide rail may be provided at a, and the workpiece 6 may be guided in the transport direction X by the guide rail.

It is also possible to set the upstream line 2 at the upper position and set the downstream line 3 at the lower position, and turn the object 6 to be processed upside down. In this case, the upstream line 2 in the above-described embodiment is read as the downstream line, and the downstream line 3 is read as the upstream line, and the transport direction of each of these lines is opposite to the transport direction X in the aforementioned embodiment. By regarding the rotation direction of the reversing unit 5 as being opposite to the rotation direction W of the embodiment, it can be easily implemented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment.

FIG. 2 is an operation explanatory view of the embodiment.

[Description of Signs] 1 Conveyance line 2 Upstream line 3 Downstream line 4 Installation space 5 Reversing unit 5b Rotation center axis 5c, 5d Arm 5e, 5f Finger 5g, 5h Stopper

Claims (1)

[Claims] 1. A transfer line is divided into an upstream line and a downstream line, and one of the upstream and downstream lines is set at a lower position and the other is set at a higher position. While providing the reversing unit, the reversing unit, a rotation center axis that is arranged at an equal position in the vertical direction between the upstream and downstream lines and performs an intermittent rotational motion that repeats rotation and stop every 180 degrees, An arm provided on this rotation center axis and corresponding to one or both of the carry-out end of the upstream line and the carry-in end of the downstream line when stopping is provided, and the arm stopped corresponding to the upstream line. After receiving the workpiece to be carried out from the upstream line, the rotation center axis is rotated by 180 degrees to reverse the front and back of the workpiece,
A front / back reversing device for a game machine, wherein the product is delivered to a line downstream of the arm.