JPH09132324A - Piling-up device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform piling-up of articles and the change of the conveying direction at the same position, prevent slips and collapse of the piled-up articles, and install a piling-up device while saving a space. SOLUTION: A conveyor 12 for conveying articles A to a piling-up position X is provided. A lift 13 for lifting the articles A to be loaded on the upper tier out of the articles A on the conveyor 12, conveyed to the piling-up position X, is provided. Then, a pushing-out means 14 for pushing out the articles A on the conveyor 12 and the articles A on the lift 13 at the piling-up position X integrally in the direction at right angles to the conveying direction of the conveyor 12, is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stacking device for stacking conveyed articles and delivering the stacked articles in a direction orthogonal to the direction in which the articles are conveyed.

[0002]

2. Description of the Related Art Conventionally, when stacking articles to be conveyed and delivering the stacked articles in a direction orthogonal to a direction in which the articles are conveyed, a stacking device and a direction changing device are respectively provided. Used in.

For example, articles are conveyed to the position of the stacking device by a conveyor, and the stacking device stacks the articles. The stacked articles are conveyed from the position of the stacking apparatus to the position of the direction changing apparatus by a conveyor, and the direction changing apparatus changes the conveying direction of the stacked articles and sends them out.

[0004]

However, conventionally, since the stacking device and the direction changing device are used independently, when moving the stacked articles from the position of the stacking device to the position of the direction changing device. In addition, when the direction is changed by the direction changing device, there is a problem that stacked articles are likely to be displaced or collapsed.

There is also a problem that a large installation space is required.

The present invention has been made in view of the above point, and stacking and direction changing of articles can be performed at the same position and at the same time to prevent misalignment and collapse of stacked articles and to install in a space-saving manner. An object is to provide a stacking device.

[0007]

A stacking apparatus according to claim 1, wherein a conveyor for transporting articles to a stacking position and an article for stacking on an upper stage of the articles on the conveyor transported to the stacking location. And a pushing means for integrally pushing and stacking the article on the conveyor at the stacking position and the article on the lift in a direction orthogonal to the conveying direction of the conveyor. The stacking of articles and the change of direction are performed at the same position and at the same time.

A stacking apparatus according to a second aspect of the present invention has a plurality of rollers arranged in parallel, a conveyor for conveying articles to a stacking position, and a plurality of forks for moving up and down between the rollers of the conveyor. , Between the rollers that are different from the lift that lifts the articles stacked on the conveyor among the articles on the conveyor that are conveyed to the stacking position and the rollers that move up and down the forks of the conveyor along the roller axis direction. An extruding unit having a moving extruding body, for extruding the article on the conveyor at the stacking position and the article on the lift integrally in a direction orthogonal to the conveying direction of the conveyor and stacking the articles. The stacking of articles and the change of direction are performed at the same position and at the same time.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a stacking apparatus of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a stacking apparatus, and a carry-in conveyor 2 for carrying in articles A is installed on one side of the stacking apparatus 1 and is arranged in a direction orthogonal to the carry-in conveyor 2 of the stacking apparatus 1. A carry-out conveyor 3 for carrying out the articles A after stacking is installed on the side. That is, the stacking device 1 is installed at the intersection of the carry-in conveyor 2 and the carry-out conveyor 3 which are installed orthogonally to each other.

The article A to be handled has a quadrangular shape as seen in a plane as shown in FIG.
As shown in FIG. 2, the box is formed in a relatively thin box shape when viewed from the side.

The stacking device 1 has a frame 11 on which a conveyor 12, a lift 13 and an extrusion means 14 are provided.
Are arranged.

The frame 11 has a lower frame 22 having a substantially rectangular frame shape to which a plurality of legs 21 for installation are attached,
An intermediate frame 23 is laid horizontally on the lower frame 22 along the direction (corresponding to the carrying-out direction OUT) orthogonal to the carrying direction of the conveyor 12 at approximately the center of the carrying direction of the conveyor 12 (corresponding to the carrying-in direction IN). Has been done.

The conveyor 12 has a pair of conveyor frames 24 which are erected on both ends of the intermediate frame 23 in a direction orthogonal to the conveying direction of the conveyor 12, and a plurality of rollers 25 are provided between the pair of conveyor frames 24. Are arranged in parallel and are rotatably supported.

Further, the lift 13 has a horizontally long elevating body 26 disposed above the conveyor 12 on the side opposite to the carrying-out direction OUT, and slide members 27 are attached to both ends of the elevating body 26. Each slide member 27 is slidably fitted to each guide rail 29 of a pair of columns 28 standing upright at both corners of the lower frame 22 on the side opposite to the carry-out direction OUT. Therefore, the lifting body 26 is not
It is supported so that it can be raised and lowered above one end side of 12.

One end of a plurality of forks 30 is fixed to the lower surface of the lifting body 26. Each fork 30 is formed to have substantially the same length as the roller 25 and has a width that allows it to enter between adjacent rollers 25 in a non-contact state. Is located lower than the upper surface of.

The lift driving means 31 for raising and lowering the lifting body 26 has a lift motor 32 mounted on the substantially central portion of the lower frame 22, and on the side of the lift motor 32 and below the lifting body 26. A rotary shaft 33 is rotatably supported at a position by a pair of bearings 34 mounted on the lower frame 22, and a timing pulley 35 mounted on the drive shaft of the lift motor 32 and a timing pulley 36 mounted on the rotary shaft 33. A timing belt 37 is stretched between and.
Lever 38 is attached to both ends of the rotary shaft 33, and one end of a link 39 is rotatably supported at the tip of each lever 38,
The other end of each link 39 is rotatably supported on both end faces of the lifting body 26.

Then, the rotary shaft 33 is rotated by the drive of the lift motor 32, and the lifting body 26 is moved up and down through the crank motion of the lever 38 and the link 39. The lifting body 26 is a fork
The fork 30 is moved between a lowered position in which the roller 30 is positioned lower than the upper surface of the roller 25 and an elevated position in which the fork 30 is positioned slightly higher than the upper surface of the article A carried on the conveyor 12.

Further, the pushing means 14 has pushers 40 as a plurality of pushers, and these pushers 40 are erected on a moving body 41 arranged below the rollers 25 of the conveyor 12. . The pusher 40 is a roller for moving the fork 30 up and down.
It is arranged so as to project above the conveyor 12 through a roller 25 different from that between the 25 and the extruding piece 42 at the front edge portion facing in the carry-out direction OUT.
Are formed. The extruded piece 42 is formed excluding the portion corresponding to the roller 25 and the portion corresponding to the fork 30 in the raised position.

The movable body 41 is formed in an elongated plate shape and is arranged along a direction orthogonal to the roller axis direction, and slide members 43 are attached to the lower surfaces of both ends.
Are slidably fitted to respective guide rails 44 arranged on the intermediate frame 23 along the roller axis direction. Therefore, the moving body 41 is movably supported on the intermediate frame 23 along the roller axis direction.

In the pusher driving means 45 for moving the moving body 41, the rotary shafts 46 are rotatably supported at both ends in the roller axis direction of the intermediate frame 23 so as to be orthogonal to the roller axis direction.
Timing pulleys 47 are attached near both ends of each rotary shaft 46, a timing belt 48 is stretched between the timing pulleys 47, and the movable body 41 is connected to the timing belts 48. A pusher motor 49 is disposed on the lower frame 22 adjacent to the lift motor 32, and a timing pulley 50 attached to a drive shaft of the pusher motor 49 and a timing pulley 51 attached to one end of one rotary shaft 46. A timing belt 52 is stretched between the two.

Then, the timing belt 48 is rotated in the forward or reverse direction by the forward or reverse drive of the pusher motor 49, and each pusher 40 is moved along the roller axis direction via the moving body 41. The pusher 40 has a fixed position on the end side opposite to the carry-out direction OUT in the roller axis direction, and when sending the article A, moves from the fixed position to the end side in the carry-out direction OUT in the roller axis direction and then returns to the fixed position. To do.

A support frame 53 is erected on the lower frame 22 in the conveying direction of the conveyor 12, and the conveyor frame 53 is provided on the support frame 53.
A stopper plate 54 for stopping the articles A conveyed by 12 at a predetermined stacking position X is attached.

Next, the operation of the present embodiment will be described.

In the initial state, each fork 30 of the lift 13 is in the lowered position, and each pusher of the pushing means 14 is pushed.
40 is in place.

Then, from the carry-in conveyor 2 to the stacking device 1
The articles A conveyed to are transferred onto the rollers 25 of the conveyor 12 and conveyed, and come into contact with the stopper plate 54 to be stopped at the stacking position X.

The article A first stopped at the stacking position X is to be stacked in the upper stage, and the article A at the stacking position X is
Is detected by a sensor or the like (not shown), the lift motor 32 of the lift 13 is driven, and the lift 26 is raised. By the raising of the elevating body 26, the forks 30 arranged at the lower position lower than the upper surface of the roller 25 come into contact with the bottom surface of the article A, and the article A is raised. Fork 30 is conveyor 12
The lift motor 32 is stopped when it reaches a lifted position which is slightly higher than the upper surface of the article A carried in above.

In this state that the articles A stacked in the upper stage are raised above the conveyor 12, the articles A successively conveyed from the carry-in conveyor 2 onto the conveyor 12 are below the raised articles A. It enters the side and is stopped at the stacking position X.

As a result, the lift 13 is moved to the stacking position X.
The article A on the top and the article A on the conveyor 12 are stopped vertically in two stages.

When the lower article A stopped on the conveyor 12 is detected by a sensor or the like (not shown), the pusher motor 49 of the pushing means 14 is driven in the normal direction, and the moving body 41 is moved in the carry-out direction OUT.
Is moved toward. By the advancing movement of the moving body 41, the pushers 40 waiting at the fixed position come into contact with the upper and lower articles A, and the upper and lower articles A are integrally pushed in the carry-out direction OUT. . The lower article A is slid on the upper surface of the roller 25, and the upper article A is slid on the upper surface of the fork 30.

The tip end side of the pushing direction of the article A in the lower stage, which is integrally pushed toward the carrying-out direction OUT, deviates from the roller 25 and is transferred onto the carrying-out conveyor 3 to push the article A in the upper stage. The tip end side in the direction comes off the fork 30 and is transferred onto the article A in the lower stage. When the rear end side of the upper article A in the extrusion direction is completely removed from the top of the fork 30, the upper article A is completely transferred and stacked on the lower article A. As a result, the stacked articles A are completely placed on the carry-out conveyor 3 and are conveyed to the downstream side by the carry-out conveyor 3.

When the pusher 40 moves to the end side in the carry-out direction OUT, the pusher motor 49 is reversely driven, the moving body 41 moves backward in the direction opposite to the carry-out direction OUT, and the pusher 40 returns to the home position. To be done. In addition, the lift motor 32
Is driven, the lifting body 26 is lowered, and the fork 30 is
It is returned to the lowered position below the upper surface of 25. As a result, the next article A can be received.

As described above, in the stacking apparatus 1, the article A is
The stacking and the direction change can be performed at the same position and at the same time, and the articles A to be stacked can be delivered in a stable stacking state without being displaced or collapsed. Moreover, it can be installed in a smaller space than ever before.

[0034]

According to the stacking apparatus of the first aspect, among the articles on the conveyor conveyed to the stacking position, the articles stacked on the upper stage are raised, and the articles on the conveyor at the stacking position and the lift are lifted. Since the above-mentioned articles are integrally pushed out in the direction orthogonal to the convey direction of the conveyor and stacked, the stacking and the direction change of the articles can be performed at the same position and at the same time. Can be delivered in a stable stacking state without causing any problem, and moreover, it can be installed in a space saving as compared with the conventional one.

According to the stacking apparatus of the second aspect, among the articles on the rollers of the conveyor conveyed to the stacking position, the articles to be stacked on the upper stage are lifted by the fork of the lift for moving between the rollers, In order to push the article on the roller of the conveyor at the stacking position and the article on the fork of the lift together with the extruding body of the extruding means in a direction orthogonal to the conveying direction of the conveyor and stack the article. Stacking of articles and direction change can be performed at the same position and at the same time, and the articles to be stacked can be delivered in a stable stacked state without deviation or collapse of the articles to be stacked. It can be installed in a smaller space than before.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a stacking device of the present invention.

FIG. 2 is a front view of the above embodiment.

FIG. 3 is a side view of the above embodiment.

[Explanation of symbols]

 1 Stacking device 12 Conveyor 13 Lift 14 Extrusion means 25 Roller 30 Fork 40 Pusher as an extruded body A Article

Claims (2)

[Claims] 1. A conveyor for conveying articles to a stacking position, a lift for raising an article to be stacked in an upper stage among articles on the conveyor conveyed to the stacking position, and a conveyor on the conveyor at the stacking position. A stacking device comprising: an extruding unit configured to integrally extrude and stack the articles and the articles on the lift in a direction orthogonal to a conveyor conveying direction. 2. A plurality of rollers arranged in parallel,
A conveyor that conveys articles to the stacking position and a lift that has a plurality of forks that move up and down between the rollers of the conveyor, and that raises the article to be stacked on top of the conveyors conveyed to the stacking location. And an extruding body that moves along a roller axis direction between rollers different from the rollers where the fork of the conveyor moves up and down, and conveys articles on the conveyor at the stacking position and articles on the lift. A stacking device comprising: an extruding unit that integrally pushes the stack in a direction orthogonal to the conveying direction of the conveyor and stacks the stack.