JPS6013927B2 - storage conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a storage conveyor that uses a free roller conveyor, a stopper, and a shuttle with a pusher and is easy to configure into a low-floor type that does not require bit work during installation.

One embodiment will be described below based on the attached illustrative diagrams.
1 is a free roller conveyor, in which a pair of left and right roller units 3, each of which supports rollers 2 at equal intervals, are placed on a support frame 4. This free loaf
The conveyor is divided into a front section A and a rear section B, and at the end of each section there are stoppers 7, 8 operated by cylinder units 5, 6. Reference numeral 9 denotes a pair of left and right punches arranged at equal intervals from the end of each area A, B, the middle part of which is pivoted on a horizontal horizontal axis 10, and the rear end receiving both front end corners of the pallet P. A stopper 11 is provided at the front end thereof, and an operated portion 13 on which a roller 12 is pivotally supported is provided.

This Kajimura 9 is always connected to the stopper 11 by the rotational force due to gravity.
is located below the locus of movement of the bottom of the pallet, and the operated portion 13 is configured to protrude above the locus of movement of the bottom of the pallet. In each area A, B, the stopper 11 is located at a constant distance from the end stoppers 7, 8, which is appropriately longer than the entire length of the pallet P.
Moreover, the operated part 13 is located immediately behind the stopper 11 at the rear end of the punch 9 and the stoppers 7 and 8. A pair of left and right horizontal panels 9 may be integrated with each other at a horizontal horizontal axis 10 or the like. Reference numeral 14 denotes a shuttle that is provided at a lower midpoint position between the pair of left and right roller units 3 so as to be able to reciprocate in parallel with the conveyance direction of the free roller conveyor 1, and is equipped with wheels 16 that play on the pair of left and right guide rails 15. 17 for reciprocating movement.

On this shuttle 14, vertically swingable movable bodies 19 whose front ends are supported by horizontal horizontal shafts 18 are mounted at equal intervals in the shuttle length direction, and rollers 20 are mounted on the rear ends of each movable body 19.
A pusher 2, which is supported by a horizontal axis 22, is supported by a horizontal machine shaft 22. The movable body 19 is urged upward by a compression coil spring 24 interposed between the rear end projecting portion 23 and the shuttle 14, and is positioned by a T-stopper 25. 26 is a strength adjustment bolt for the compression coil spring 24.

The pusher 21' is urged clockwise in the figure by the bell section 27, and when the dowel section 27 comes into contact with the stopper, it maintains an upright posture and can be rotated only forward and downward. 21' When the shuttle 14 is at the backward limit position as shown in FIG. The stroke of the shuttle winged turtle is each stopper 7, dance 9
It is set to be slightly longer than the interval between trials i.

Now, as shown in the diagram, all the stoppers 7 and 8, turtle 1
Assuming that the pallet P supporting the load W is restrained, even if the cylinder unit i7 advances the shuttle amount 4, each pusher 21 is integrated with the movable body 19 and has a compression coil as shown in FIG. The pusher 21 descends around the horizontal shaft 18 against the force of the spring 24, and passes under each pallet P with the roller 20 touching the bottom surface of each pallet P.

When the shuttle 14 reaches the forward limit, the pusher 21
advances to the front of the pallet P, and returns to its original elevated position by the action of the compression coil spring 24. Next, when the shuttle 14 moves backward by the action of the cylinder unit 17, each pusher 21 is pushed by the pallet P and rotates forward and downward against the rotational force of gravity, as shown in FIG.
0 is in contact with the bottom of each pallet P, pusher 2
1 will pass backwards under each pallet P. When the shuttle 14 reaches the backward limit, the pusher 21 advances to the rear of the pallet P and returns to its original upright position by the action of the wheel weight 27. As mentioned above, the pallet P is the stopper 7
, 8, and 11, even if the shuttle 14 is moved, the pusher 21 only passes under the pallet P, and no pallet feeding action occurs.

Now, when the stopper 8 at the end of the rear section B is opened by the cylinder unit 6, when the shuttle 14 moves forward thereafter, the pallet P at position a, which was stopped by the stopper 6, is moved to the pusher 21 immediately behind it. As the pusher 211 moves forward, it slides on the free roller conveyor 1 and, for example, another conveying means 28 for carrying out
The pallet P can be sent upward. When the pallet P is sent out in this way, the operated part turtle 3 located at the lower front end of the pallet P is released from the pressing action, so Enokimura 09 holding the operated part turtle 3 swings due to gravity. Then, the operated part turtle 3 rises, and the stopper '1, which has stopped the pallet P at position b, falls. As a result, during the next forward movement of the shuttle 4, the pallet P at position b, which was located immediately after the sent-out pallet, is pushed back by the pusher 21 due to the forward movement of the pusher 2 immediately after it. The pallet P in the rear area B from the b position to the d position is automatically fed sequentially by repeating the same action. 0 Starting end of the rear area B If the pallet P at position d is sent to position c or forward by the above action, by opening the end stopper 7 of the front stage area A by the cylinder unit 5, the pallet P at position d is moved to position e by the same action as described above. The pallet P at position d can be sent out to position d, and the pallets P at position t can be automatically sent sequentially from position f to position t.

When the pallet P at the t position, which is the starting end of the front stage area A, is sent to the s position or forward, the pallet P is moved to the t position by an appropriate pushing means or pulling means from another loading conveyor 29. It can be imported. The present invention can be implemented as described above, and compared to conventional storage conveyors of this type, it is easier to create a low-floor type that does not require bit work when hemming, and can be implemented at a lower cost. At the same time, it is possible to set a plurality of storage zones partitioned by drive stoppers on a storage conveyor using one shuttle.

Furthermore, according to the present invention, the pusher provided on the reciprocating shuttle is attached to the rear end of the movable body whose front end is pivotally supported by the shuttle and which is biased upwardly by a spring and is able to swing up and down within a certain range. The movable body is supported so as to be swingable between an upright position and a tilted forward position, and is biased to maintain the upright position. In contrast, conventional feeding mechanisms of this type, such as the feeding mechanism described in Japanese Utility Model Application Publication No. 51-126591, can move forward against gravity, but move backwards due to the biasing force of a spring. An L-shaped swinging arm that can be rotated against the pressure is supported on the shuttle, and a pusher is provided at the upper end of this L-shaped swinging arm. In such a conventional configuration, since the pusher must be rotated forward when the shuttle moves backward, the center of swing must be located approximately directly below the pusher. Therefore, when pushing the conveyed object with the pusher Z, the backward rotational force acting on the L-shaped swinging arm that holds the pusher becomes extremely large. As a result, the pusher
An extremely large force is required to prevent the sardine from moving backwards. It is particularly unsuitable for conveyors that transport heavy objects. According to the configuration of the present invention having the characteristics described above, the center of swing when the pusher is rotated forward is located approximately directly below the pusher,
The center of swing when the pusher is rotated rearward can be located at a lower front position with respect to the pusher.

That is, it is possible to suppress the downward rotational force that acts on the vertically swinging movable body when pushing the conveyed object with the pusher. Therefore, the spring force required to hold the movable body in the upright position is relatively small, and the movable body can be effectively used as a conveyor for transporting heavy objects.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing one embodiment of the present invention;
The figure is a partially cutaway enlarged side view of the end castle of the female base, FIG. 3 is a longitudinal sectional front view, and FIGS. 4 and 5 are side views illustrating the operation of the main parts. 1... Free low food conveyor, 7, 8... Driving stopper, 9... Sewing machine, 11... Stopper, 13
......Operated part, 14...Shuttle, 17.
...Shuttle drive cylinder unit, 19.
...Movable body, 21 ...Pusher, 24
... Compression coil spring, 25 ... Stopper, 27 ... Gun weight, P ... Pallet. Figure 1 Figure 2 Figure 4 Figure 5 Figure 3

Claims (1)

[Claims] 1. A stopper for stopping the conveyed object at regular intervals on the free roller conveyor is attached to the rear end of a ram that is pivotally supported at an intermediate position and can freely swing up and down, and a rear end stopper is attached to the front end of the ram. An operated part is provided that is pushed down by the transported object, which is stopped in front of the transported object, and the stopper at the rear end stops the transported object only when the operated part is pushed down. The shuttle is configured to protrude in height and is further provided with a shuttle capable of reciprocating in parallel with the conveying direction of the free roller conveyor, and a cylinder unit for reciprocating the shuttle. Movable bodies that are biased upward and can swing up and down within a certain range are mounted at regular intervals, and at the rear end of each movable body, the object to be transported, which is stopped by each stopper, is pushed back by one pitch. A storage conveyor in which a pusher is pivotally supported so as to be swingable between an upright position and a forwardly rotated position, and is biased to maintain the upright position.