JPH083375Y2 - Shuttle conveyor equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention pivotally attaches a dog, which is rotatable toward the delivery side, to a horizontal shaft connecting a pair of shuttle beams of a shuttle conveyor,
The present invention relates to a shuttle conveyor device in which a dog sensor that pivots to the delivery side is pivotally mounted when a pallet is detected on the frame of the shuttle conveyor.

[Prior Art] Various shuttle conveyer devices used for transport and storage devices are known (for example, Japanese Patent Publication No. 59-17003, Japanese Utility Model Publication 59-14413, Japanese Utility Model Publication No. 61-14042, Japanese Patent Publication No. 61).
-38085 gazette and Japanese Utility Model Publication No. 61-30968 gazette).

In each of these conveyor devices, the dog actuating device for controlling the floating and sinking of the dog has a complicated structure, and maintenance and inspection are troublesome.

Japanese Utility Model Application Laid-Open No. 57-126428 discloses a technique for transporting an object to be conveyed at a constant distance when there is no other object to be conveyed in the immediately preceding position. The technique of carrying is not disclosed.

[Problem to be Solved by the Invention] Therefore, an object of the present invention is to provide a shuttle conveyer device which can easily convey a stored pallet to the unloading side and has a reliable dog operation and easy inspection.

[Means for Solving the Problems] According to the present invention, a dog that is rotatable toward the delivery side is pivotally attached to a horizontal shaft that connects a pair of shuttle beams of a shuttle conveyor, and a pallet is detected on the frame of the shuttle conveyor. In a shuttle conveyor device that pivotally attaches a dog sensor that sometimes rotates to the delivery side, a ball nut that is screwed into a ball screw is fixed to the lower part of the shuttle beam, and the ball screw is connected to the motor via a clutch that disconnects with an electromagnetic solenoid. The lower end of the dog sensor is connected via a linkage to a parallel link mechanism provided on the frame below the dog at the adjacent halet position on the storage side when the shuttle beam is in the original position, and the parallel link is connected. The horizontal top member of the mechanism is opposed to the roller pivotally supported on the lower end of the dog, and the presence or absence of pallets is detected in an appropriate number of lanes. Equipped with a bar sensor, a limit switch that closes when the bar sensor detects a pallet, and a control panel that operates the electromagnetic solenoid based on the signal from the limit switch to connect the clutch and reverse the motor. There is.

[Explanation of Action and Effect] Therefore, when the dog sensor detects the pallet, the dog sensor rotates to the exit side and pushes up the top member of the parallel link mechanism via the linkage and the parallel link mechanism. As a result, the top member rotates the dog in the shipping direction via the rollers to settle the dog. Therefore, even when there is a pallet at the pallet position adjacent to this pallet on the storage side, the dog passes under the pallet together with the shuttle beam, and the pallet is not transported. On the other hand, if the dog sensor does not detect the pallet, the dog is floating and the pallet is conveyed to the next pallet position.

When the bar sensor detects the pallet, the limit switch is closed, the motor is rotated in the forward and reverse directions, and the shuttle beam reciprocates. Therefore, the pallets stored are sequentially transported to the shipping side.

At that time, if there is a pallet immediately before the transport side, the dog sensor rotates and the dog on the rear side of the transported pallet sinks, so that the shuttle beam is not transported to the pallet even if it advances.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows lanes A1, A2 and B1, B2 of the transport and storage device. These shuttle conveyors J are provided with known roller conveyors 2, 2 and a pair of shuttle beams 3 described later.

In FIG. 2, the shuttle beam 3 is formed to have a length corresponding to 9 pallets P from the rear side in the case of a lane capable of storing 10 pallets P in the illustrated example.
It can reciprocate back and forth by the transport stroke S. And, on the center line of the pair of shuttle beams 3,
Nine dogs M1 to M9 (hereinafter abbreviated as M) are pivotally attached. Further, dog sensors L2 to L9 (hereinafter abbreviated as L) for detecting the presence or absence of the pallet P are provided in zigzag on both sides of the shuttle beam 3 at the third to tenth pallet positions in the lane. Also, the dog sensor L1 is attached to the shuttle beam at the intermediate position (M2 position) between the first and second pallets.
(FIG. 6) are provided.

In FIG. 3, a ball nut 8 is fixedly attached to the lower portion of the shuttle beam 3, and a ball screw 9 is screwed into the ball nut 8. The ball screw 9 is horizontally supported by the frame 1 (FIG. 4) by means not shown, and its rear end is disconnected by an electromagnetic solenoid 10 to form a clutch.
It is connected to the output side of 11. The input side of the tooth-shaped clutch 11 is connected to a miter box, and in the example shown in the figure, the miter boxes 12, 12 are connected via adjacent torque limiters 14.
Is reversible by a ball screw 9 and a counter shaft 13 orthogonal to the ball screw 9, and is connected to an inverter-controlled motor 15.

In FIG. 4, the shuttle beams 3 and 3 are connected by a plurality of horizontal shafts 5, and guide rollers 6 and 6 provided at both ends of the shafts 5 are guide rails 7 fixed to the beam 1a of the frame 1. , 7, the shuttle beam 3 is movably supported by the frame 1 in the front-rear direction (hereinafter, the exit side is referred to as the front side, and the entry side is referred to as the rear side).

FIG. 5 shows the relationship between the dog sensors L2 to L9 and the dogs M2 to M9. The dog sensor L is attached to the side surface of the guide rail 7 by a bracket.
It is pivoted through 18. The dog sensor L is formed in a dogleg shape, is pivotally attached at a bent portion, an upper end is formed in an arc shape on the front side, and a ball socket 19 is provided on the lower end so as to project rearward. On the other hand, a bracket 20 is provided at the lower part of the side of the guide rail 7 so as to protrude horizontally at the rear side.
A dog pushing plate 22, which is a top member, is connected to the upper side of 20 via links 21a and 21b. The plate 22, the links 21a and 21b, and the bracket 20 form a parallel link mechanism.
LM is formed. Note that a forward inclined portion 22a is formed on the front side of the plate 22. An inverted V-shaped link 23 is connected to the link 21a, and a ball socket 19 projecting forward at the lower end of the link 21a is connected to the ball socket 19 of the dog sensor L via a link connecting rod 24. .
The linkage 23 and the rod 24 constitute a linkage LK.

The dog M is formed in a dogleg shape, is pivotally attached to the center of the shuttle beam 3 at its bent portion, the upper portion is formed in an arcuate shape on the front side, and the rollers 25a, 25b are provided at the lower end portion as shafts. It is supported and the roller 25a and the dog pushing plate 22 face each other. Further, the dog M is biased counterclockwise, that is, on the floating side by a helical spring 26, and is locked at a floating position shown by a solid line by a guide rail R fixedly mounted on the frame 1 via a roller 25a. On the other hand, the dog sensor L is urged by the coil spring 27 attached to the front side of the lower end portion in the counterclockwise direction, that is, the side where the dog pushing plate 22 is lowered.
It is locked at the position indicated by the solid line by means not shown, and a slight gap C is formed between the plate 22 and the roller 25a. Accordingly, the dog M is not interfered with by the plate 22 when in the floating position. Also, the dog sensor L is on the pallet P.
When the pallet P is detected by being pressed by the button, the pallet P is rotated to the position of the chain double-dashed line shown on the right side of FIG. It does not interfere with the bottom surface of the pallet P by rotating to the position. In addition, the forward tilted portion 22a is the dog push-up plate 2
When the dog M moves backward when the dog M is in the floating position when the ascent is 2, the roller 25a is smoothly guided to the plate 22.

FIGS. 6 to 9 show another embodiment of the floating / sinking mechanism of the dogs M2 to M9. A horizontal support shaft 36 is rotatably supported by the shuttle beams 3 and 3 on the rear side of the horizontal shaft 5. Its support axis
Reference numeral 36 is passed through the through hole of the bifurcated portion of the stopper bracket 37 which is fixed to the horizontal shaft 5 and has a U-shaped plane.

A dog sensor L is fixed to one end of the support shaft 36,
A dog M that fits in a forked portion of the bracket 37 is rotatably supported in the center portion.

The dog sensor L is formed in a V shape, and the bent shaft supports the support shaft.
It is fixed to 36, its upper end is formed in an arc shape forward, and the lower end has a joint pin 38 projecting outward.

At a position facing the dog sensor L of the support shaft 36, a lever 39 is provided so as to project in an obliquely forward direction, and a joint pin 38 is provided at the lower end thereof so as to project outward. The joint pins 38 are connected by the link connecting rod 24. The dog M is formed in a U-shaped cross section when viewed from above, and the rear side of the upper end portion is inclined forward. The support shaft 36 is provided with a pin 40 whose upper end abuts the inner surface of the dog M at the position shown in the figure, and the support shaft 36 is wound between the two forks of the dog M.
A helical spring 41, which is locked to the support shaft 36 via a pin 40, is stretched. Therefore, the dog M is urged counterclockwise by the helical spring 41, and the lower end portion thereof has the stopper bracket.
It is locked at the end of 37 (shown by the shaded area in FIG. 6) and positioned in an upright floating position.

On the other hand, the dog sensor L is urged by the coil spring 27 attached to the front side of the lower end in the counterclockwise direction, that is, the side on which the dog M is levitated via the connecting rod 24, the lever 39, the support shaft 36, and the pin 40. Reference numeral 43 in FIG. 9 is a guide bracket which is attached to the shuttle beam 3 via a piece 44, a rubber damper 45 and a bracket 46 and which guides the connecting rod 24.

Therefore, when the dog sensor L is pressed by the pallet P and detects the pallet P, the dog sensor L is rotated to the position indicated by the chain double-dashed line and the lever 39 is rotated to the position indicated by the chain double-dashed line via the connecting rod 24.
The dog M is rotated to the sinking position indicated by the chain double-dashed line so as not to interfere with the bottom surface of the pallet P.

FIG. 10 is a diagram showing an example of the floating / sinking mechanism of the dog M1, and when the dog sensor L1 detects the pallet P and rotates to the position L1a indicated by the chain double-dashed line, the pulley Pu1 provided integrally with the rotation axis O1 of the dog sensor L1. The two wire ropes 34a and 34b wound around the wire actuate. These wire ropes 34a and 34b are both dog
When the dog sensor L1 detects the pallet P, the dog M1 is wound around a pulley Pu2 provided integrally with the rotary shaft O2 of M1, and the dog M1 is rotated to a sinking position M1a indicated by a two-dot chain line. Reference numeral 35 in the figure is a dog protection plate.

FIG. 11 shows another embodiment of the floating / sinking mechanism of the dog M1. The dog M2 is formed in the same shape as the dogs M3 to M9, and an arm 28 is provided on the lower half of the dog M so as to project obliquely forward and downward.
A ball stud 29 is provided on the lower end portion of 28 so as to project laterally. The dog M1 is formed in an inverted L shape, and is pivotally attached to the side surface of the shuttle beam 3 at the end of the long side so that the long side becomes horizontal. On the other hand, below the side surface of the shuttle beam 3, a cam lever 31 is pivotally mounted via a bracket 30. The top portion of the cam portion 31a is formed into a flat surface and is engaged with the lower end surface of the long side of the dog M1, the lever portion 31b is formed obliquely forward and downward, and the pin 32 is laterally provided at the lower end portion. It is projected. The pin 32 is connected to the ball stat 29 by a connecting rod 33. Therefore, when the dog M2 rotates to the settling position shown by the two-dot chain line, the dog M1 is rotated to the settling position shown by the two-dot chain line.

In FIG. 12, the first, third, fifth, seventh, and lane lanes are shown.
At the ninth and tenth pallet positions, the bar sensor 1, which is the first detection means for detecting the presence or absence of the pallet P,
l3, l5, l7, l9 and 10 (hereinafter abbreviated as l) and limit switches LS1 to LS5 (hereinafter abbreviated as LS) that are closed when they detect the pallet P and rotate to the chain line position.
And an open limit switch LS6 are provided, which are connected to a control panel (not shown).

The loading control is performed by the bar sensor l. When the bar sensor 1 detects the pallet P, the limit switch LS is closed.
The control panel operates the electromagnetic solenoid 10 based on the signal from the limit switch LS to connect the toothed clutch 11 to the motor.
Reverse 15 and rotate shuttle beam 3 back and forth twice. If a signal is input from another limit switch LS before this reciprocating motion is completed, two new reciprocating motions are performed. As a result, the pallets that have been stored are sequentially transported to the shipping side. At this time, if there is a pallet immediately in front of the carrying side, the dog sensor L is rotated by the pallet to settle the dog M on the rear side of the pallet being carried, and the pallet is not carried even if the shuttle beam advances. It has become.

As described above, according to the present invention, it is possible to surely perform the load feeding control and the dog sedimentation control with a simple configuration.

[Effects of the Invention] As described above, according to the present invention, the following excellent effects are obtained.

(I) The shuttle beam can be smoothly reciprocated when required by the ball nut, the ball screw, the clutch, and the motor.

(Ii) Conveyance can be reliably performed by cargo feed control in cooperation with dog sedimentation control.

(Iii) The pallets are preferably unloaded with a simple structure.

[Brief description of drawings]

1 is a front view showing a shuttle conveyor embodying the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a perspective view around a ball screw, and FIG. 4 is a partially enlarged view of FIG. FIG. 5 is a side view showing an embodiment of the present invention, FIG. 6 is a drawing showing another embodiment of FIG. 5, and FIG. 7 and FIG.
FIG. 9 is a top view and a front view of FIG. 9, FIG. 9 is a front view showing around the connecting rod of FIG. 6, FIG. 10 is a side view around the storage end and the second pallet position, and FIG. 11 is another of FIG. FIG. 12 is a drawing for explaining the embodiment of FIG. 12, and FIG. 12 is a drawing for explaining the lever sensor. J ... Shuttle conveyor, LK ... Linkage, LM ... Parallel link mechanism, L ... Dog sensor, M ... Dog, 3 ...
Shuttle beam, 5 ... Horizontal axis, 22 ... Lift plate, 21a, 21b, 23 ... Link, 24 ... Link connecting rod

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Mitsuru Shoji 1-2-7 Moto Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Yukio Ichihara 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Takeshi Uki 1-2-7 Moto Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Seiichiro Takizawa 1-2-7 Moto Akasaka, Minato-ku, Tokyo No. within Kashima Construction Co., Ltd. (56) References

Claims (1)

[Scope of utility model registration request] 1. A dog, which is rotatable toward the delivery side, is pivotally attached to a horizontal shaft connecting a pair of shuttle beams of a shuttle conveyor,
In a shuttle conveyor device that pivotally attaches a dog sensor that rotates to the delivery side when a pallet is detected on the frame of the shuttle conveyor, a ball nut that is screwed into a ball screw is fixed to the lower part of the shuttle beam, and the ball screw is an electromagnetic solenoid. The dog sensor is connected to the motor via a clutch, and the lower end of the dog sensor is connected to the frame below the dog at the adjacent hallet position on the storage side when the shuttle beam is in the original position via the linkage. A bar sensor connected to a link mechanism, a horizontal top member of the parallel link mechanism is opposed to a roller pivotally supported at the lower end of the dog, and bar sensors for detecting the presence or absence of a pallet in an appropriate number of lanes, and those bar sensors are configured to detect the pallet. The limit switch that closes when it detects it and the electromagnetic solenoid based on the signal from the limit switch. Connect the clutch by actuating the id, the shuttle conveyor device, characterized in that it comprises a control panel for forward and reverse motor.