JPS5948214B2 - How to operate load pushing means in storage conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a storage conveyor equipped with a storage line that movably supports a load between a loading section at one end and an unloading section at the other end, and a load pushing means. The present invention relates to a method of operating the load support means.

In conventional storage conveyors of this type, the loads are always stored in a so-called front-stacked state so that the loads are continuous from above the unloading section at the storage line exit to the rear.

In other words, the load supplied onto the loading section is always pushed back to the position where the load on the unloading section connects to the rear end of the continuous load row, and the load on the unloading section, that is, the load on the unloading section, is When the first load is taken out, the entire load column is pushed back until the remaining load at the head of the column reaches the unloading section.

This storage method is convenient when loads are frequently removed from the top of the unloading section, but the time interval between the loads being unloaded from the unloading section is shorter than the time interval between the loads being supplied to the loading section. If it is very long, that is, if the residence time of the load on the unloading section is long, it is necessary to push the load at the beginning of the storage operation because the loads that are being supplied one after another are packed in advance one by one. The cycle time of the means becomes very long, and the efficiency of storage operations is greatly reduced.

In order to solve this problem, if the load pushing stroke by the pushing means is limited to a length that allows the load on the loading section to be transferred to the starting end of the storage line, then the load that is supplied one after another can be Since the load is pushed in a continuous manner from the loading section side, the cycle time of the load pushing means is greatly shortened, and storage operations can be carried out efficiently. There is a drawback that the unloading operation cannot be performed until the unloading unit is transferred onto the unloading section.

The present invention aims to eliminate the above-mentioned conventional drawbacks, and one embodiment of the present invention will be described below based on the attached illustrative drawings.

In FIGS. 1 and 2, 1 is a horizontal storage line composed of a large number of parallel free rollers 2,
A loading section 3 is provided at one end, and a shipping section 4 is provided at the other end.

These cargo loading section 3 and cargo unloading section 4 are composed of a plurality of parallel free rollers 5 and 6, and form a space in which a lifting/lowering fork 7.8 of a loading/unloading device (not shown) moves up and down. ing.

Of course, the configurations of the cargo loading section 3 and the shipping section 4 are not limited to these, and various conveyors may be used, for example.

9 is a stopper provided in the shipping section 4, and 10 is a limit switch for detecting the presence of goods in the shipping section 4.

Reference numeral 11 indicates a limit switch for detecting the presence of cargo in the loading side section 3, and reference numeral 12 indicates a limit switch for detecting full capacity in the storage line 1.

Reference numeral 13 denotes load pushing means, which is composed of one pusher conveyor 14.

This pusher conveyor 14 includes an endless rotary chino 15 suspended from the loading side 3 to the end of the storage line 1, and a horizontal straight path from the loading side 3 to the end of the storage line 1 by this chino 15. It is comprised of a cart 17 that reciprocates while being guided by guide rails 16, an anti-back pusher 18 that pivots and projects from the cart 17, and a motor 19 that rotates the chino 15 in forward and reverse directions.

20 is an anti-back stopper. Next, the method of use and operation of the pusher conveyor 1 will be explained.
4, the loading side 3 is moved by the anti-back pusher 18.
The first pushing action pushes the load above the starting end of the storage line 1 and transfers it, and when the limit switch 10 for detecting the presence of cargo in the unloading section 4 is turned off (empty state), the storage The last load is pushed back and all the loads are fed forward until the frontmost load on the line 1 is transferred onto the unloading section 4 and the limit switch 10 is turned on (stock status). 2. It is possible to selectively perform the boosting action.

As shown in FIG. 1, since the top of the unloading section 4 is empty, the load a that is first transferred onto the loading side section 3 by the fork 7 is affected by the second boosting action of the pusher conveyor 14. It is pushed back by the anti-back pusher 18 and transferred to the unloading section 4 via the storage line 1.

Thereafter, the cargoes C supplied onto the loading side section 3 are moved to the starting end of the storage line 1 by the anti-back pusher 18 due to the first pushing action of the pusher conveyor 14 since the unloading section 4 is in a loaded state. You will be pushed to the top.

Anti-back pusher 1 in this first boosting action
The stroke S of 8 is constant, and the load advances to a position beyond the anti-back stopper 20 including the inertial movement amount.

When the load C is sent in, the load that was sent in first is pushed forward by the load C and sent forward on the storage line 1.

The loads thus supplied onto the loading side 3 are sequentially fed onto the storage line 1 in a continuous manner by the first pushing action of the pusher conveyor 14 and stored. a is removed by the fork 8 and the top of the unloading section 4 becomes empty, the pusher conveyor 14 performs a second boosting action, and the frontmost load is moved onto the unloading section 4 as shown in FIG. The last load d (if there is no load d on the load side 3, the last load C on the storage line 1) is moved to the anti-back pusher 18 until it is loaded.
supports and sends all the loads b to d forward.

After this, the pusher conveyor 14 is reversed and the anti-back pusher 18 returns to its original position shown in FIG. The pusher 18 can be folded forward and downward and returned to its original position after passing under the load e.

The pusher conveyor 14 repeatedly performs the first pushing action each time a load is supplied onto the loading side 3 until the load on the unloading section 4 is removed, and the pusher conveyor 14 sequentially moves the load onto the storage line 1. The cargo is fed and stored, and each time the cargo on the unloading section 4 is carried out, a second boosting action is performed to transfer the following cargo onto the unloading section 4.

Further, as shown in FIG. 4, when the storage line 1 becomes full and the limit switch 12 remains on, the load is supplied onto the loading side 3 and the limit switch 1
1 is turned on, the first boosting action of the pusher conveyor 14 is not performed.

When the load on the unloading section 4 is carried out in this state, the pusher conveyor 14 performs a second push action (same as the first push action in terms of stroke) and transfers the next load C onto the unloading section 4. The cargo c-i will be sent forward in order to be transferred to.

Although one pusher conveyor 14 is used as the pushing means 13, a pusher conveyor that performs only the first pushing action and a pusher conveyor that performs only the second pushing action may be provided.

In this case, the pusher conveyor that performs only the second pushing action can be configured to push only the cargo on the storage line 1, regardless of the presence or absence of the cargo on the loading side 3.

Further, as the means for reciprocating the pusher in the boosting means, in addition to an endless rotating chain, for example, a cylinder screw 1 to unit l-, etc. can be used.

The method for operating the load pushing means in the storage conveyor of the present invention can be implemented as described above, and its feature is that the load is moved between the loading section at one end and the unloading section at the other end. In a storage conveyor equipped with a storage line that can support the load and a load pushing means, when there is a load on the unloading section, the load supplied onto the loading section is moved to the storage line by the load pushing means. If there is no load on the unloading section, the load including the load on the loading section is transferred until the load closest to the unloading section is transferred onto the unloading section. The entire row or storage line is pushed and moved by the load pushing means.

According to such a method of the present invention, when the top of the unloading section is empty, including immediately after the start of storage work, the load is immediately sent onto the unloading section by the forward packing feeding action of the entire load row by the load pushing means, Loads can be kept on standby on the unloading section immediately after storage work begins, and there is no inconvenience such as having to wait until the storage line is full before unloading. can be done efficiently.

Moreover, the loads that are successively supplied to the loading section after the front packing and feeding operation of the entire load row are loaded in a so-called tokoroten manner with the minimum pushing stroke of the load pushing means until the loads on the unloading section are taken out. It can be sent out sequentially from the loading section side.

Therefore, as long as there is a load on the unloading section, including immediately after the start of the storage operation, the cycle time of the load pushing means can be greatly shortened, and the storage operation can be performed extremely efficiently.

The method of the present invention, which provides such effects, is particularly effective in situations where cargo is supplied to the loading section relatively frequently, but cargo is rarely removed from the unloading section. It is something.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIGS. 1, 3, and 4 are side views showing different operating states, and FIG. 2 is a longitudinal sectional front view. 1...Storage line, 2. 5. 6...
...Free roller, 3...Loading section, 4
・・・・・・Unloading section, 10.11・・・Limit switch for detecting the presence of cargo, 12・・・Limit switch for detecting full quantity, 13・・・Load backing means , 14
... Pusher conveyor, 15 ... Endless rotary cheno, 18 ... Anti-back pusher.

Claims (1)

[Claims] 1. In a storage conveyor equipped with a storage line that movably supports a load between a loading section at one end and an unloading section at the other end, and load pushing means, the load is on the unloading section. Sometimes, the load supplied onto the loading section is pushed and transferred to the starting end of the storage line by the load pushing means, and when there is no load on the unloading section, the load closest to the unloading section is moved. A storage conveyor characterized in that the entire load row including the load on the loading section or the entire load row on the storage line is pushed and moved by the load pushing means until it is transferred onto the unloading section. Boosting means operating method.