JPS6234645B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a loading control device for a reversible conveyor that automatically prevents collisions between articles discharged from a loading lane and articles on the conveyor when the moving direction of the reversible conveyor changes. Regarding.

Previously, if the direction of movement of a reversible conveyor was reversed while transporting goods, it was necessary to take measures such as stopping loading while the goods on the conveyor were passing in front of the loading lane or unloading the goods on the conveyor. However, when there are a large number of loading lanes, it is not only extremely troublesome to perform the above procedure manually, but also when the direction of movement of the conveyor changes frequently, the above-mentioned manual procedure is completely impossible.

An object of the present invention is to provide a reversible conveyor loading control device that eliminates the need for the above-mentioned manual processing.

Embodiments of the present invention will be described below with reference to the drawings.

In Fig. 1, a reversible conveyor C has a number of loading lanes L1, L2,...Ln provided on its side.
For example, suppose that newspaper roll A is loaded from ...... Unloading stopper S1 at the unloading end of each loading lane,
S2, .
Dn... are provided, and paper web passage detectors E1, E2,... on the conveyor 1 are provided between each loading lane.
En... is established. Each of the unloading stoppers Sn has the function of releasing the lock on the first web A of the loading lane Ln to allow it to be transferred to the conveyor C, and stopping the following web A, in response to an operation command signal. Any known removal stopper may be used. Further, as the detectors Dn, En, etc., well-known contact or non-contact types can be used. In this embodiment, Dn is a limit switch and En is an optical detector.

In FIG. 2, the reversible shift register SR shifts the stored signal in the forward or reverse direction in synchronization with the conveyor C, and when the web A is delivered to the conveyor C from the loading lanes L1, L2..., the loading lane Write terminals w1, w2, and bits at positions corresponding to
A loading signal p is written by the writing device Wn from . . . wn .

The loading signal P is the forward rotation signal f when the conveyor rotates forward.
Then, the web A is transported to the loading lane on the conveyor C.
It is given as an AND signal of the detection signal en of the passage detector En between Ln and loading lane Ln+1, and as an AND signal of the reversal signal r and the detection signal en-1 of the passage detector En-1 when the conveyor is reversed. It will be done. Therefore, the web A conveyed from the loading lane Ln to the conveyor C is transferred to the next adjacent loading lane Ln+
1 (at the time of forward rotation) or Ln-1 (at the time of reverse rotation), the loading signal P is written to the bit corresponding to the loading lane Ln.

The loading signal P read from each bit readout terminal r1, r2,...rn... is inverted to a negative signal in the reading device Rn, and the detection signal dn of the detector Dn provided in the loading lane Ln corresponding to each bit is output.
and unloading command i are input to AND gate An, there is no loading signal p (=1), and loading lane Ln
If roll paper A exists at the output terminal of (dn=1),
When the export command i is given, the AND gate An
is output, the stopper Sn of the loading lane Ln is opened, and the web A is conveyed to the conveyor C. Therefore, regardless of whether the conveyor C is in the forward or reverse direction, the web A carried out from each loading lane L1, L2, . . . does not collide with the web on the conveyor C.

The present invention has the above-mentioned configuration, and automatically detects a portion of the reversible conveyor where no articles exist according to the direction of movement of the reversible conveyor, and detects the portion of the reversible conveyor where there are no articles present from multiple loading lanes without interfering with the articles on the conveyor. This has the effect of allowing the articles to be carried out, and there is no need to move the articles on a reversible conveyor or monitor the timing of carrying out unlike in the past, which is extremely beneficial in streamlining and labor saving the carrying out work.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, with FIG. 1 showing the overall layout and FIG. 2 showing a control circuit diagram. C...Reversible conveyor, D1~Dn...Detector,
E1-En... Passage detector, L1-Ln... Loading lane, SR... Shift register, R1-Rn... Reading device, W1-Wn... Writing device.

Claims (1)

[Claims] 1. A carry-out stopper provided at each carry-out end of a plurality of loading lanes that carry articles onto a reversible conveyor, a detector that detects the articles at the carry-out end, and a detector installed between each loading lane to detect articles on the reversible conveyor. a reversible shift register that operates in synchronization with the reversible conveyor; and a reversible shift register that operates in synchronization with the reversible conveyor; and a reversible conveyor forward rotation signal or reverse rotation signal and the downstream loading lane adjacent to the reversible conveyor in the bits of the shift register corresponding to each loading lane. A writing device that writes an AND signal with a detection signal of a passage detector provided between the bits as a loading signal, and a negation signal of the loading signal read from each bit and a writing device provided in the loading lane corresponding to the bit. A loading control device for a reversible conveyor, comprising: a reading device configured to actuate an unloading stopper of the loading lane based on an AND signal of a detection signal from a detector and an unloading command signal to unload the article onto the reversible conveyor.