JPH0930646A - Automatic loading device to pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To load articles in the state neatly arranged on a pallet support base by providing, above the pallet support base, a positioning mechanism for positioning articles to be loaded which are carried by a conveyor means to a loading position. SOLUTION: A positioning frame body 17 is rotated clockwise in the drawing to lay a front positioning frame body 17a into horizontal state. A first article A to be loaded is put on a roller conveyor 14 and slid in this state, and brought into contact with and positioned by the front positioning frame body 17a. After a prescribed number of the articles A are successively packed, the positioning frame body 17 is rotated counterclockwise in the drawing to lay a rear positioning frame body 17b into horizontal state, and the back surface of the article A on the last end is held and positioned. A gear 15 is rotated to retreat the roller conveyor 14 from above a pallet support base 11. Thus, the articles A are successively fallen from the front row as the back surface of the article A on the last end is held and positioned, and placed on the pallet support base 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet automatic loading apparatus for loading articles on a pallet support table in a plurality of stages in an organized state.

[0002]

2. Description of the Related Art Conventionally, for example, at various work sites, articles of a predetermined shape are carried in an orderly manner on a pallet support table, and such articles to be loaded are placed on the pallet support table. The work of loading while tidying up requires considerable labor and skill, and there is a problem in terms of work efficiency.

[0003]

The present invention has been made in view of the above circumstances, and it is possible to easily and efficiently load articles on a pallet support table in a neatly organized state. An object of the present invention is to provide an automatic loading device for a pallet that can be used. In addition, here, the pallet is usually used to move goods by mechanical means in addition to various board stands used for cargo handling work using a forklift,
It also includes any type of pedestal that can be used for placing it for transportation.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention places a pallet on a pallet support that is vertically movable in multiple stages, and has means for positioning articles to be loaded on the pallet. The pallet support base is lowered every time the pallet is placed on the pallet, and the pallet support table is lowered every time the pallet is placed on the pallet while automatically arranging the loaded articles on the pallet in multiple stages. That is, the present invention is such that a pallet support base for placing a pallet, an elevating means for vertically moving the pallet support base, and an area above the pallet support base intermittently above the pallet support base. A conveyor means provided so as to be opened and closed so as to be opened and closed, and a positioning mechanism which is provided above the pallet support table and positions the loading position of the loaded articles conveyed by the conveyor means. The present invention provides an automatic loading device for a pallet.

The above-mentioned positioning mechanism has a front positioning frame body for positioning the front position of the loaded article and a rear positioning frame body for positioning the rear position of the loaded article. The parts may be pivotally attached so that when one of the front and rear positioning frame bodies is in the positioning position for the loaded article, the other is in a state of being released from the position for the loaded article. Further, it is preferable that the conveyor means is a conveyor, such as a roll conveyor, on which a conveyed article placed can slide freely. The conveyor means can be driven in the front-rear direction, for example, by engaging with a gear.

In this automatic loading apparatus, the conveyor means conveys the articles to be loaded above the pallet and positions them at a predetermined position by the positioning mechanism. After the positioning of the loaded articles is completed, the conveyor means retracts to drop and place the loaded articles on the pallet while holding the loaded articles in the positioned state.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of an automatic loading apparatus for pallets according to the present invention will be described below with reference to the drawings. 1 to 4 are side views for sequentially explaining the operation of the automatic stacking device of the present invention, and FIG. 5 is a plan view of the same, in which 11 is a pallet for mounting the pallet 10. It is a support base. This pallet support 11
Has a flat plate shape, but the front edge 11a is curved slightly downward as shown in the drawing, so that the pallet 10 can be easily taken out by a forklift (not shown). Also,
The pallet support base 11 can be moved in multiple stages in the vertical direction by elevating means as described below (lowering and stopping for each thickness of the article A to be loaded).

That is, the four corners of the pallet support base 11 are screwed into the four shafts 12 with threads, and the pallet support base 11 is moved along these shafts 12 with threads by the rotation of the shafts 12 with threads. Can move up and down. For example, threaded shaft 12
The pallet support base 11 is raised by the clockwise rotation of the pallet, and the pallet support base 11 is lowered by the counterclockwise rotation of the threaded shaft 12. The four threaded shafts 12 are simultaneously rotated in the same direction at the same speed by a rotation mechanism such as a chain mechanism (not shown).

Above the pallet support 11, a roller conveyor 14 described below is movably supported on the upper side surface of the apparatus enclosure 13 via both ends thereof.
The roller conveyor 14 is composed of a large number of rotatable rollers arranged side by side, and is driven by a gear 15 such as a sprocket provided at the rear end of the device.

That is, when the gear 15 rotates clockwise in the figure, the roller conveyor 14 advances to cover the upper side of the pallet support base 11 (see FIGS. 1 and 3), and the gear 15
On the contrary, when the roller conveyor 14 rotates counterclockwise in the figure, the roller conveyor 14 retreats to open the area above the pallet support 11 (see FIGS. 2 and 4). The rear edge of the upper surface of the device envelope 13 extends rearward, and the gear 15 can be rotated clockwise or counterclockwise in the extending portion 13a by a rotary drive mechanism such as a motor. It is like this.

A positioning mechanism is provided at the front portion of the upper surface of the apparatus envelope 13 (the portion where the pallet support 11 is located) to arrange the loaded articles A on the pallet 10. The positioning mechanism includes a support plate 16 provided upright on both sides of a central portion thereof, and a side face substantially V-shaped positioning frame body 17 having a central portion pivotally attached to the support plate 16.

The positioning frame body 17 comprises a front positioning frame body 17a and a rear positioning frame body 17b. The front positioning frame body 17a and the rear positioning frame body 17b are U-shaped as shown in FIG. When the front positioning frame body 17a is rotated downward (that is, in a horizontal state), the front position of the loaded article A is positioned (see FIGS. 1 and 3), and the rear positioning frame body 17b is formed. Rotates upward to open the loaded article A, and when the rear positioning frame body 17b rotates downward (that is, in the horizontal state), positions the backward position of the loaded article A (see FIG. 2, FIG. 4), the portion of the front positioning frame body 17a is rotated upward so as to be opened to the loaded article A.

The vertical movement of the pallet support base 11,
The forward / backward movement of the roller conveyor 14 and the vertical movement of the positioning frame body 17 can be visually checked and manually controlled according to the loading state of the articles A to be loaded, and the pallet support 11 Up and down,
Forward / backward movement of the roller conveyor 14, front positioning frame body 1
The timing of the vertical movement of 7a and the rear positioning frame 17b may be synchronized with the loading operation of the articles A to be loaded, and the series of operations may be automatically performed.

Next, the operation of the automatic stacking device for a pallet having such a mechanism will be described. First, a switch (not shown) is turned on to simultaneously rotate the four shafts 12 with screws as shown in FIG.
1 to the top position and turn on another switch.
N to drive the gear 15 to rotate, and the roller conveyor 14
Is advanced to the front of the device envelope 13 to the full extent.

Then, the positioning frame body 17 is rotated clockwise in the drawing to lower the front positioning frame body 17a to a horizontal state. In this state, the first article A to be loaded is placed on the roller conveyor 14 and slid, and this is brought into contact with and positioned by the front positioning frame 17a.

Next, the articles A to be loaded are sequentially loaded via the roller conveyor 14 (see FIG. 1). After packing a predetermined number, the positioning frame body 17 is rotated counterclockwise in the figure to lower the rear positioning frame body 17b to a horizontal state,
The back surface of the loaded article A at the rear end is held and positioned.

Then, in this state, the switch is turned on to rotate the gear 15 counterclockwise in the figure to move the roller conveyor 14 backward from above the pallet support 11 as shown in FIG. As a result, the loaded articles A are sequentially dropped from the frontmost one while the back surface of the loaded article A at the rearmost end is held and positioned, and placed on the pallet support 11.

The roller conveyor 14 is the pallet support 1
When all the articles A to be loaded that have been completely retracted from the first portion have been placed on the pallet support base 11 (the loading of the first stage is completed), the switch is turned on again. The four shafts 12 with screws are simultaneously rotated to lower the pallet support 11 from the uppermost position to a second position lower by the thickness of the article A to be loaded (see FIG. 3).

Next, the switch is turned on again to rotate the gear 15 to move the roller conveyor 14 forward as much as possible, and then the positioning frame body 17 is rotated clockwise in the drawing to lower the front positioning frame body 17a. And make it horizontal. In this state, the first article A to be loaded is slid on the roller conveyor 14, and the article A is moved forward by the front positioning frame 17
Contact and position a.

Next, the articles A to be loaded are sequentially loaded via the roller conveyor 14 (see FIG. 3). After packing a predetermined number in the same manner as described above, the positioning frame body 17 is rotated counterclockwise in the drawing to lower the rear positioning frame body 17b to a horizontal state and hold and position the back surface of the loaded article A at the rear end. To do.

Then, in that state, the switch is turned on to rotate the gear 15 counterclockwise in the figure to move the roller conveyor 14 backward as in the above. As a result, the loaded articles A are dropped and placed on the pallet support base 11 sequentially from the front row while the back surface of the loaded articles A at the rear end is held and positioned.

The roller conveyor 14 is the pallet support base 1
When all the conveyed articles A to be loaded are completely placed on the pallet support base 11 after being completely retracted from the first portion (this completes the second-stage loading), the switch is turned on again. The four screw shafts 12 are simultaneously rotated to lower the pallet support base 11 from the uppermost position to the position shown in FIG.

Thereafter, the same operation is repeated, and after the articles A to be loaded have been placed on the pallet support base 11 for a predetermined number of steps, the positioning frame body 17 is rotated counterclockwise in the figure to set the front positioning frame body. With the 17a raised, the pallet 10 is moved to the pallet support base 1 by a forklift (not shown).
The pallet 10 can be moved to an arbitrary place in a state where the articles A to be loaded are loaded from the pallet 1.

Of course, the present invention is not limited to the above-described embodiments, but various design changes can be made without departing from the scope of the present invention. For example, in the above-described embodiment, the pallet support base 11 is moved up and down by rotating and driving the four screw shafts 12 as the raising and lowering means of the pallet support base 11, but the present invention is not limited to this. It is also possible to use a means such as, for example, a hydraulic cylinder linked with a limit switch or the like. Also, switch O
For N and OFF, the position of the article may be detected by a sensor and automatically controlled, or a part or the whole thereof may be manually operated.

[0025]

As described above in detail, according to the automatic pallet loading apparatus of the present invention, the conveyor means is arranged so as to be movable back and forth, and the movement of the conveyor means is performed by the front positioning frame body and the rear positioning frame. Since the body is interlocked, it is possible to easily and efficiently load the objects to be loaded on the pallet support table in a neat state, which is extremely useful.

[Brief description of drawings]

FIG. 1 is a side view showing an automatic loading device for a pallet according to the present invention.

FIG. 2 is a side view for explaining the operation of the automatic stacking device shown in FIG.

FIG. 3 is a side view for explaining the operation of the automatic stacking device shown in FIG.

FIG. 4 is a side view for explaining the operation of the automatic stacking device of FIG.

FIG. 5 is a plan view of the automatic loading device shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Pallet, 11 ... Pallet support stand, 11a ... Pallet support stand front edge part, 12 ... Threaded shaft, 14 ... Roller conveyor, 13 ... Device envelope, 15 ... Gear, 16 ... Support plate, 17 ... Positioning frame Body, 17a ... front positioning frame, 17b ... rear positioning frame,

Claims (5)

[Claims] 1. A pallet support base on which a pallet is placed, an elevating means for vertically moving the pallet support base, and an upper region of the pallet support base intermittently above the pallet support base. A conveyor means provided so as to be openable and retractable so that it can be opened and closed; and a positioning mechanism provided above the pallet support table for positioning the loaded articles conveyed by the conveyor means at a mounting position. An automatic loading device for pallets. 2. The positioning mechanism comprises a front positioning frame body for positioning the front position of the loaded article and a rear positioning frame body for positioning the rear position of the loaded article. Automatic loading device for the listed pallets. 3. A positioning mechanism pivots an intermediate part rotatably to the left and right, and when the front positioning frame body is in a positioning position for the front loaded article, the rear positioning frame body is for the rear loaded article. The front positioning frame body is in a state of being released from the positioning position for the front loaded article when the rear positioning frame body is in the positioning position for the rear loaded article after being released from the positioning position. An automatic loading device for the pallet described in 2. 4. The pallet automatic loading apparatus according to claim 1, wherein the conveyor means is driven by rollers. 5. The automatic pallet loading apparatus according to claim 1, wherein the conveyor means comprises a roller conveyor.