JP2000203715A - Floor-plate collecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically perform work for extracting a floor-plate from a bottom surface of a packing case. SOLUTION: This floor-plate collecting device 21 extracting a floor-plate P laid on a bottom surface of a corrugated board-made packing case C for preventing deformation and damage of the bottom surface is provided with a roller conveyer 32 formed with an opening in the center opened/closed by a movable sheet 39 rocked by an air cylinder 42. Dimension of the opening is set smaller than dimension of the bottom surface of the packing case C larger than dimension of the floor-plate P. Accordingly, only the floor-plate P passes through the opening when the packing case C laid with the floor-plate P passes on the roller conveyer 32 and is piled together on a receiving plate 51 of a lifter 48 via a movable/fixed chute 39, 44.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for recovering a bottom plate of a conveyed object, which removes a bottom plate for protecting the bottom surface of the conveyed object conveyed from the conveyor from between the conveying surface of the conveyor and the bottom surface of the conveyed object. About.

[0002]

2. Description of the Related Art When automobile parts are transported to overseas production bases, a plurality of types of parts are stored in a cardboard packing case for each type, and the packing cases are loaded into containers in a predetermined order in a predetermined quantity. It has become. The cardboard packing cases are stocked by type on a number of stock conveyors arranged in parallel, from which necessary packing cases are taken out in a predetermined order and conveyed to a container loading position. . The stock conveyor is constituted by a non-powered roller conveyor, and a packing case is pushed by an operator to move on the stock conveyor.

[0003] By the way, the packing case storing the parts is one.
Since it weighs about 0 kg and may be conveyed in a two-tiered or three-tiered state, the bottom surface of the cardboard packing case comes into strong contact with the rollers of the stock conveyor and is deformed. When the bottom of the packing case is deformed like this,
There is a problem that not only does the force required to push and move it increase to increase the burden on the operator, but also the bottom surface of the packing case is easily broken.

[0004] Conventionally, therefore, a veneer board has been laid on the bottom surface of the packing case and placed on a stock conveyor so that the bottom surface of the packing case does not directly contact the rollers of the stock conveyor.

[0005]

The packing case taken out of the stock conveyor is transferred to a powered roller conveyor and transported to a loading position in a container. Since the base plate is unnecessary, it is necessary to remove the base plate from the bottom of the packing case. However, the work of manually lifting a heavy packaging case and extracting the floorboard is a heavy labor, and automation of the work has been desired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a bottom plate collecting apparatus for automatically removing a bottom plate from a bottom surface of a packing case.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a floor plate for protecting a bottom surface of a conveyed object conveyed by a conveyer is provided on a conveyer surface of the conveyer. A conveyed plate collecting device that removes and collects from between the bottom surfaces of the conveyed objects, and sets a planar shape of the conveyed plate smaller than a planar shape of a bottom surface of the conveyed object, and sets a planar shape of the conveyer to be smaller than a planar shape of the mounted plate. Form an opening with a planar shape that is smaller than the planar shape of the bottom surface of the transferred object,
There has been proposed a floor board collecting apparatus characterized in that a floor board laid on the bottom surface of a transferred object is dropped from an opening and collected.

[0008] According to the above configuration, an opening having a plane shape larger than the plane shape of the floor plate and smaller than the plane shape of the bottom surface of the object to be conveyed is provided on the conveyor that conveys the object to be conveyed while the floor plate is laid. Since the conveyed object and the floor board are transported by the conveyor, only the floor board can be dropped from the opening and collected automatically without the operator lifting the conveyed object.

According to the invention described in claim 2,
In addition to the configuration according to claim 1, pivotally supported by the opening of the conveyor,
A bottom plate collecting device, comprising a chute that swings between a rising position that forms a part of the conveyor conveying surface by closing the opening and a lowering position that opens the opening and drops the bottom plate. Suggested.

According to the above arrangement, the chute is pivotally supported on the opening of the conveyor so that the chute can be swung freely. Therefore, when a conveyed object without a floor plate is conveyed, the chute is raised to close the opening. Smooth conveyance of the conveyed object is possible, and when conveying the conveyed object on which the slab is laid, lowering the chute and opening the opening enables the smooth recovery of the slab. be able to.

According to the third aspect of the present invention,
In addition to the configuration of claim 1, a floor plate recovery device is provided, comprising a lifter that can move up and down below the opening of the conveyor, and the floor plates falling from the opening are sequentially stacked on the lifters that descend. .

According to the above construction, by sequentially lowering the lifter as the floor plate falls from the opening of the conveyor, the floor plates can be smoothly stacked on the lifter, and the stacked floor plates can be collectively collected. Can be taken out.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on embodiments of the present invention shown in the accompanying drawings.

FIGS. 1 to 7 show an embodiment of the present invention. FIG. 1 is a plan view of a stocking device and a transporting device for a packing case, FIG. 2 is an enlarged view of a part of FIG. 1, and FIG. 2, a sectional view taken along line 4-4 in FIG. 2, FIG. 5 is an operation explanatory view at the start of the floor plate collecting operation, FIG. 6 is an operational explanatory view in the middle of the floor plate collecting operation, FIG. FIG. 8 is an operation explanatory view at the end of the bottom plate collecting operation.

As shown in FIG. 1, a plurality of stock conveyors 11 to 16 are arranged in parallel in order to stock a corrugated cardboard packing case C containing car parts by type. The stock conveyors 11 to 16 are constituted by roller conveyors having no power source, and the packing cases C are pushed by an operator to be conveyed from the packing position on the upstream side of the stock conveyors 11 to 16 to the dispensing position on the downstream side. Is done. On the lower surface of the packing cases C, laying boards P made of plywood are laid, and the dimensions of the laying boards P are common, and are formed smaller than the dimensions of any of the packing cases C.

Adjacent to the downstream ends of the stock conveyors 11 to 16, there is provided a traverser 17 which can reciprocate in a direction orthogonal to the conveying direction of the stock conveyors 11 to 16. The traverser 17 is pushed by an operator and travels. Rollers 18 for supporting the packing case C are provided on the upper surface thereof.
Is provided. A direction changing table 20 having a large number of ball casters 19 arranged on the upper surface thereof along a traveling path of the traverser 17, and a board collecting device 2 for collecting the board P ...
1, and a conveyor 22 for transporting the packing cases C from which the base plates P have been removed toward the loading position in the container are arranged in series. The transport conveyor 22 is a roller conveyor provided with a power source, and transports the packing cases C by driving the rollers 24 by the motor 23.

Next, the structure of the bottom plate collecting device 21 will be described with reference to FIGS.

The floor plate collecting device 21 is provided with the direction changing table 2.
A roller conveyor 32 having no power source and fixed to the upper surface of the base 31 is provided between the conveyor conveyor 22 and the conveyor 22. The roller roller conveyor 32 includes two long rollers 33, 33; 34, 34 at the upstream end and the downstream end in the transport direction, respectively, and a large number of short rollers 35 on both left and right sides of the intermediate portion in the transport direction.
, And the long rollers 33, 33;
A rectangular opening 36 is formed at a position surrounded by the short rollers 34 and the short rollers 35. The size of the opening 36 is formed smaller than the size of any of the packing cases C and larger than the size of the floor plates P. That is, the dimensions of the packing case C, the opening 36, and the floor board P are as follows.
There is a relationship of the floor plate P.

A large number of rollers 3 are provided on the upper surface of a rectangular frame 37.
8 are provided so as to open and close the opening 36. The front end of the movable chute 39 in the transport direction is connected to the brackets 40 and 40 provided on the base 31 with pins 4.
1, 41, the middle part of which is supported by the base 3
1 are connected by an air cylinder 42. Therefore, when the air cylinder 42 is in the extended state, the movable chute 3
9 are at the same height as the long rollers 33, 33; 34, 34 and the short rollers 35 of the roller conveyor 32, and when the air cylinder 42 is in a contracted state, the rollers 38 of the movable chute 39 , The roller conveyor 32 is inclined such that the rear end side in the transport direction is lower than the long rollers 33, 33; 34, 34 and the short rollers 35 (see FIGS. 5 to 7). When the movable chute 39 is in an inclined state, a stopper 43 for regulating the inclination angle is provided on the base 31.

At a position corresponding to the lower surface of the direction conversion table 20, a fixed chute 44 connected to the movable chute 39 in an inclined state is provided. The fixed chute 44 has a notch 47 at the tip of a frame 46 supporting four rollers 45. A lifter 48 disposed below the fixed chute 44 is supported in parallel with the fixed chute 44 on an upper surface of the pantograph mechanism 49, an air cylinder 50 for driving the pantograph mechanism 49 to expand and contract vertically, and a pantograph mechanism 49. Received plate 5
1 and guide plates 52, 52 erected on both right and left sides of the receiving plate 51 to guide the left and right side edges of the floor boards P.
An openable and closable door 53 is provided at a position facing the lower end of the inclined receiving plate 51.

A movable chute 39 is provided on one side of the base 31.
Lever 54 for extending and retracting the air cylinder 42
Is provided. A receiving plate 51 is provided on the lower surface of the fixed chute 44.
Is provided with a limit switch 55 for detecting that the lifter 48 has reached the ascending limit by contact with the lifter 48. A detection arm 57 is pivotally supported at the upper end of an L-shaped stay 56 erected on the base 31 by a pin 58, and a limit switch 59 that operates by contact with the lower end of the detection arm 57 is connected to the stay 56. Provided. The detection arm 57 is bent in a rectangular shape, and swings in contact with the end of the ascending and descending receiving plate 51.

Next, the operation of the embodiment of the present invention having the above configuration will be described.

As shown in FIG. 1, the worker
7 is moved to a position facing a predetermined stock conveyor 11 to 16 (for example, stock conveyor 13), and the foremost packing case C on the stock conveyor 13 is transferred onto the traverser 17, and then the traverser 17 is moved in the direction. It is moved to a chain line position facing the conversion table 20. Subsequently, as shown in FIG. 2, the packing case C is pushed and transferred from the rollers 18 of the traverser 17 to the ball casters 19 of the direction conversion table 20, where the longitudinal direction of the packing case C is Rotate 90 ° perpendicular to the transport direction.

Subsequently, the user pushes the packing case C on the direction conversion table 20 to push the packing case C on the roller conveyor 32 of the floorboard collecting device 21.
Transfer to the top. At this time, as shown in FIG. 4, the lifter 48 is at the lowered position, the movable chute 39 is raised to close the opening 36 of the roller conveyor 32, and the floor plate P is laid on the lower surface of the packing case C. ing. When the operator operates the operation lever 54 from this state, as shown in FIG. 5, the air cylinder 50 extends and the lifter 48 rises, and stops at the position where the limit switch 59 is operated by the receiving plate 51. When the lifter 48 stops at the rising end, the air cylinder 42 contracts to move the movable chute 3.
9 swings downward around the pins 41, 41, and inclines to a position following the fixed chute 44.

At this time, the size of the floor plate P laid on the lower surface of the packing case C is smaller than the size of the opening 36 of the roller conveyor 32, and the size of the packing case C is larger than the size of the opening 36 of the roller conveyor 32. Therefore, packing case C
The sole plate P alone passes through the opening 36 and swings with the movable chute 39 while remaining on the roller conveyor 32, and slides on the movable chute 39 and the fixed chute 44 by gravity and is supported on the receiving plate 51 of the lifter 48. You. Therefore, when the worker pushes the packing case C remaining on the roller conveyor 32 and transfers the packing case C onto the conveyor 22, the packing case C is automatically conveyed toward the loading position to the container by the driving force of the conveyor 22. Is done.

The second and subsequent packing cases C are transferred from the direction changing table 20 to the conveyor 2
6, only the floor plate P laid on the lower surface of the packing case C in the floor plate collecting device 21 is automatically separated, and slides on the movable chute 39 and the fixed chute 44, as shown in FIG. It is stacked on the receiving plate 51 of the lifter 48. The lifter 48 intermittently descends by one pitch corresponding to the thickness of the base plate P every time the third or later base plate P is supplied onto the receiving plate 51, so that the base plate P falls a large distance. It can be smoothly attached on the receiving plate 51 without being overlapped.

As shown in FIG. 7, as the lifter 48 descends, the detection arm 57 which comes into contact with the receiving plate 51 swings downward around the pin 58, and a predetermined number (for example, 24 Are stacked, the detection arm 57 activates the limit switch 59 to activate the buzzer or other notification means. The number of stacks of the floor boards P on which the limit switch 59 operates corresponds to the number of the packing cases C stored in one container, for example. When the twenty-four floor boards P are stacked on the receiving plate 51 of the lifter 48, the operator can open the door 53 and take out the twenty-four floor boards P at once.

As described above, since the floor boards P ... laid on the bottom surface of the packing cases C ... can be removed without lifting the packing cases C ..., the burden on the operator can be greatly reduced.

When the packing case C is light in weight and the force required for pushing and moving the packing case C is small, and there is little possibility that the bottom surface of the packing case C is damaged, the packing case C is not used and the packing case P is not used. C ... can be transported. In this case, the movable chute 3 of the floor plate collecting device 21
9 may be passed through the packing cases C while being fixed at the raised position.

Although the embodiments of the present invention have been described in detail, various design changes can be made in the present invention without departing from the gist thereof.

For example, in the embodiment, the opening 36 of the roller conveyor 32 of the bottom plate collecting device 21 is opened and closed by the movable chute 39. However, the movable chute 39 may be eliminated and the opening 36 may be always opened. It is possible. Further, in the embodiment, the movable chute 39 is inclined so that the rear side in the transport direction of the packing cases C is lowered, but the tilt direction may be reversed so that the front side in the transport direction is lowered. Further, the material of the floor plates P is not limited to the plywood of the embodiment, and any material can be selected.
Further, the material of the packing cases C is not limited to the cardboard of the embodiment, and any material can be selected.

[0032]

As described above, according to the first aspect of the present invention, the conveyer for conveying the conveyed object with the bottom plate being laid on the bottom surface is provided with a bottom surface of the conveyed object larger than the plane shape of the bottom plate. An opening with a planar shape smaller than the planar shape of is formed, so that when transporting the transported object and the floor board by the conveyor, the operator drops only the floor board from the opening without lifting the transported object and automatically Can be recovered.

According to the second aspect of the present invention,
Since the chute was pivotally supported at the opening of the conveyor,
When transporting a transported object without a laying board, raising the chute and closing the opening enables smooth transport of the transported object. In the case of transportation, the chute is lowered to open the opening, thereby enabling smooth collection of the floor plate.

According to the third aspect of the present invention,
By sequentially lowering the lifter as the floor falls from the opening of the conveyor, the floor can be smoothly stacked on the lifter, and the stacked floor can be taken out at once.

[Brief description of the drawings]

FIG. 1 is a plan view of a packing case stocking device and a transporting device.

FIG. 2 is an enlarged view of a part of FIG. 1;

FIG. 3 is a view in the direction of arrows in FIG. 2;

FIG. 4 is a sectional view taken along line 4-4 of FIG. 2;

FIG. 5 is an explanatory diagram of an operation at the start of a floor plate collecting operation.

FIG. 6 is an explanatory view of the operation in the middle of the bottom plate collecting operation.

FIG. 7 is an explanatory view of the operation at the end of the bottom plate collecting operation.

[Explanation of symbols]

 C Packing case (conveyed object) P Floor plate 32 Roller conveyor (Conveyor) 36 Opening 39 Movable chute (Chute) 48 Lifter

 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kojun Saikai 1-10-10 Shin-Sayama, Sayama-shi, Saitama Honda Motor Co., Ltd. Saitama Plant Sayama Plant F-term (reference) 3F015 AA19 EA03 3F029 BA09 CA21 DA04 EA02 3F079 AD17 BA07 CB19 CC06 DA06 DA13 DA21 DA28

Claims (3)

[Claims] A bottom plate (P) for protecting the bottom surface of a transferred object (C) conveyed by a conveyor (32) is attached to the conveyor (3).
2) An apparatus for recovering a bottom plate of an object to be taken out and collected from between the conveying surface and the bottom surface of the object (C), wherein the plane shape of the floor plate (P) is the plane shape of the bottom surface of the object (C). And an opening (36) having a planar shape larger than the planar shape of the floor plate (P) and smaller than the planar shape of the bottom surface of the transported object (C) is formed on the conveyor (32). (C) A bottom plate collecting device, wherein the bottom plate (P) laid on the bottom surface is dropped from the opening (36) and collected. 2. An ascending position pivotally supported by an opening (36) of the conveyor (32), closing the opening (36) and forming a part of the conveying surface of the conveyor (32), and opening the opening (36). 2. The sole plate collecting device according to claim 1, further comprising a chute (39) that swings between the lower position and the lower position where the sole plate (P) is dropped. 3. 3. A lifter (48) which can be moved up and down below the opening (36) of the conveyor (32).
The soleboard collecting device according to claim 1, characterized in that the soleplates (P) falling from 6) are stacked on a sequentially descending lifter (48).