JP2682920B2 - Equipment for handling transported objects - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for manufacturing
The present invention relates to a structure of an object handling device for transferring a conveyed object such as a cardboard box containing articles such as assembly parts to a working unit and taking out the inside.

[0002]

2. Description of the Related Art In the case where an inclined roller conveyor is connected to the front end of a substantially horizontal conveyor roller conveyor to change the transportation height of an object to be conveyed from a high position to a low position, In Japanese Utility Model Publication No. 59-43295, the inclined roller conveyor is connected to the front end of the conveyor roller conveyor to form a cutout portion having a width smaller than the width of the conveyor, and the cutout portion is arranged in the cutout portion. The rocking roller conveyor is pivotally mounted on the side close to the front end, and a locking body protruding above the upper surface of the roller is provided at the front end of the rocking roller conveyor. A sensor for detecting the passage of the conveyed object is provided at an appropriate position with the conveyor, and when the conveyed object comes to the rocking roller conveyor, the rocking roller conveyor is moved downward, and its locking body is an inclined roller conveyor. upon Proposes to configure it to stop at a position where the lower position than.

However, according to the above-mentioned prior art, when the lateral dimension of the object to be conveyed on the rocking roller conveyor in the conveying direction is smaller than the width of the notch, the rocking roller conveyor has its upper surface. However, there is a problem in that if the vehicle moves downward so as to be below the upper surface of the inclined roller conveyor, it cannot be transferred to the inclined roller conveyor. Therefore, conventionally, the goods are taken out of the cardboard box at the storage part,
Replace with a box-shaped container of a certain shape and size that is suitable for storage and transportation in a three-dimensional storage. Then, the articles are stored and conveyed while the containers are kept in the container, and when the empty containers are piled up to some extent after the articles are taken out by the working section, the empty containers are transferred to the receiving section again. It will be.

As described above, the trouble of taking out the articles from the cardboard box in the storage section and replacing them with the containers becomes extremely troublesome as the quantity and types of the articles increase. The present invention
It is an object of the present invention to solve such a problem of the prior art and to enable conveyance to a working portion regardless of the size of the conveyed object, particularly the width dimension.

[0005]

In order to achieve the above object, the present invention is directed to a conveyor for conveying an object to be conveyed, such as a cardboard box containing an article, and a conveyor which is connected to the end of the conveyor and faces downward. In an article handling device comprising an inclined working unit, a stopper for preventing the fall of a conveyed object is provided at the lower end of the working unit so as to project upward, and a notch above the stopper is provided. A oscillating roller conveyor having a rotation center near the end of the conveyor, and the oscillating roller conveyor having a posture in which an upper surface of the oscillating roller conveyor is substantially flush with a conveying surface of the conveyor; While being supported by a fluid pressure actuator so as to be rocked and driven in a posture substantially flush with the upper surface of the rocking roller conveyor, the locking body can be moved up and down and biased upward on the free end side of the rocking roller conveyor. Provided on the lower side of the rocking roller conveyor When the upper surface of the oscillating roller conveyor is substantially equal to the inclined surface of the working portion, it is provided with a link mechanism for descending the inclined surface of the working portion of the locking member.

[0006]

Next, an embodiment of the present invention will be described. First, a pallet 1 used in the present invention is shown in FIG.
3 will be described with reference to FIG. The pallet 1 made of a thin metal plate has a rectangular shallow dish shape in a plan view. The left and right side plates 1b, 1b of the bottom plate 1a are erected, and the front and rear portions 1c, 1c are formed to be inclined outward and upward. And its front and rear parts 1c, 1c
The curled outer edge is formed to be lower than the upper edge of the left and right side plates 1b. Therefore, when the corrugated cardboard box W containing the articles is mounted on the pallet 1 and pulled out by sliding on the bottom plate 1a,
It is possible only from c and 1c.

A substantially cubic block 2 made of synthetic resin or the like fixed to the outer front and rear ends of the left and right side plates 1b, 1b of the pallet 1 with screws 3, nuts, etc. Functioning as an engaging part when loading and unloading the pallets 1 to and from the storage shelf, and also functioning to prevent misalignment when vertically stacking the pallets 1 in a plurality of stages, and further when transporting the pallets 1 when vertically stacking the pallets 1. Has a function as a sandwiching engagement portion. That is, the front and rear surfaces 2a and 2b in the longitudinal direction of each block 2 are engaging portions when the pallet 1 is pushed out and pulled in, and are recessed on the upper surface of each block 2a (open toward the upper edge of the side plate 1b). By fitting a substantially rectangular projection 6 projecting downward to the lower surface of the block 2 of the upper pallet 1 at the place 5, the upper and lower pallets 1 ... Can be stacked in the right and left and front and rear positions without displacement. In addition, the pallet 1 formed in a concave shape on the outer surface of each block 2 is formed with a substantially rectangular sandwiching engaging portion 7 in the front-rear direction.

In a product assembly factory or the like, since articles delivered from outside the factory are usually packaged in a corrugated cardboard box, if they are stored, stored, and transported while being mounted on the pallet 1, Eliminates the hassle of replacing items in containers. In addition, by moving only the corrugated cardboard box where the articles are stored on a transportation line such as a roller conveyor,
Compared to the case where the storage and transportation operations are repeated, the bottom of the corrugated cardboard box is not damaged, and there is no possibility of damaging the articles inside. In addition, even if the width of the cardboard box is too small, the pallets for loading it are standardized to a fixed size, so that the long-sided support rails on the left and right sides of the storage shelves in the three-dimensional storage can be used. The pallet can be loaded and unloaded smoothly. The mark code attached to the side surface of the cardboard box W is read by a sensor (not shown) and stored in the computer together with the address of the stored storage shelf so that the desired article can be delivered.

At the other end of the delivery line 10, a plurality of dispensing parts 11 extending substantially at right angles to the longitudinal direction of the delivery line 10 are provided, and only the corrugated box W on the pallet 1 is slid by each dispensing part 11. Pay out. The working unit 13 is arranged at one end of the transport roller conveyor 12 that is connected to each payout unit 11 (see FIGS. 4 to 8). As shown in FIGS. 5 and 6, the roller conveyor in the delivery line 10 includes a plurality of motor rollers 17 including a drive motor 14, a speed reduction mechanism 15, a clutch and brake mechanism 16 in an inner diameter portion, and a simple roller 18. (In the embodiment, two rollers are arranged alternately), and a large number of sets of roller units in which rollers 17 and 18 are wound and connected by an endless body 19 such as a timing belt are arranged.

The unit length of each roller unit is set to be substantially equal to the length of the pallet 1, and a light reflection type detector 21 provided on the frame 20 of the conveyor moves on the roller conveyor. The presence / absence of each pallet 1 is detected, and control is performed to drive / stop each roller unit so that front and rear pallets do not collide, so that the pallets are conveyed in order.

7 and 8 show the payout section 11, and a stopper piece 23 attached to the electromagnetic solenoid 22 so as to stop the pallet 1 at a predetermined position on the rollers 17 and 18 of the delivery line 10 in the payout section 11 is projected. To do. The stopped pallet 1 has its front and rear portions 1c, 1c directed toward the longitudinal direction of the inclined conveying roller conveyor 12 to the working portion 13. A stopper 24, which is formed so as to face the front portion 1c of the pallet 1 but does not extend above it, is provided on the frame 20 of the conveyor.

Reference numeral 25 is a long pushing member for pushing the corrugated cardboard box W on the pallet 1 toward the conveying roller conveyor 12, and a bracket 26 supporting one longitudinal end of the pushing member 25 having a cushioning material stretched on the front surface. Is attached to a rodless air cylinder 28 slidably fitted on a guide shaft 27 extending below the rollers 17 and 18 along the longitudinal direction thereof. When the rodless air cylinder 28 is moved rightward in FIG. 14, the pallet 1 is stopped by the stopper 24, so that only the cardboard box W is discharged toward the inclined conveyor roller conveyor 12 while leaving the pallet 1.

FIGS. 9 to 11 are detailed views of the working unit 13. The working unit 13 is provided at the end of the transport roller conveyor 12.
The fixed inclining table 30 in FIG. The fixed tilting table 30 has a frame frame 31 except for a notch portion near the end of the transport roller conveyor 12.
A sliding plate 32 is stretched on the upper end of the frame frame 31, and a stopper 34 having a cushioning material 33 such as rubber stretched on the lower surface of the frame frame 31 is protruded upward to prevent the corrugated cardboard box W, which is an object to be conveyed, from falling. Fulfill. Reference numeral 35 is a bracket for connecting the frame frame 31 to the transport roller conveyor 12 so that the inclination angle thereof can be changed, and reference numeral 36 is a rotation support shaft. Reference numeral 37 is a support arm projecting downward from both left and right sides of the frame 31.
The inclination angle of the fixed tilt table 30 can be changed by engaging an arbitrary recess of the guide groove 38 formed in the support arm 37 with a locking pin 39 provided on the frame 12a of the transport roller conveyor 12. .

The transfer conveyor 1 is provided in the notch.
An oscillating roller conveyor 41 having a support shaft 40 near the terminal end of 2 as the center of rotation is provided. Reference numeral 44 is a frame frame that supports the rollers 42 of the rocking roller conveyor 41 and both left and right ends of the sliding plate 43, and reference numeral 45 is a fluid pressure actuator such as air having a rotation fulcrum on the frame 12a. Piston rod 45a is pivotally attached to a bracket 46 on the lower surface of the frame 44, and a control device (not shown) causes the upper surface of the swing roller conveyor 41 to rise to a position along the extension line of the upper surface of the transfer roller conveyor 12 and a fixed tilt table. The sliding plate 32 of 30 is controlled to selectively change its posture to a descending position on the same plane as the upper surface of the sliding plate 32.

Reference numeral 47 is a shock absorber projecting upwardly from the support arm 37, which is the swing roller conveyor 4.
When 1 is in the lowered position, the contact piece 48 attached to the bracket 46 comes into contact with the bracket 46 so that the lowered position can be positioned without impact. Reference numeral 49 is a left and right locking body disposed below the sliding plate 43 in the rocking roller conveyor 41, and the locking body 49 is for preventing the corrugated cardboard box W, which is an object to be conveyed, from falling. A cushioning material 50 such as rubber is stretched on the surface of the locking body 49. The locking body 49 can move up and down along a pair of left and right guide rails 51 provided on the frame frame 44, and the pressing piece 49b of the locking body 49 can move up and down on a support member 52 also fixed to the frame frame 44. Although it is urged upward by the support pin 53 and the spring 54 provided in the above, it cannot be pulled out upward at the lower end edge 49a of the locking body 49.

Reference numeral 55 denotes a link provided on the bracket 56 having an L-shaped cross section provided on the support member 52 so as to be rotatable around a pin 57, and the left and right ends of the link 55 can be pressed against each other. Children 58, 59 are provided, and one pressing rotator 58 is brought into contact with the upper surface of the pressing piece 49b. The oscillating roller conveyor 41 moves downward and its upper surface is fixed to the tilting table 30.
When it becomes a flat surface substantially the same as the upper surface of the support arm 37, the other pressing trochanter 59 contacts the restricting piece 60 of the support arm 37, and the link 55
Is rotated to lower the locking body 49 against the force of the spring 54 by the one pressing rotator 58, and the upper end edge of the locking body 49 is fixed to the fixed tilt table 31.
It is configured to sink below the upper surface of the sliding plate 33.

Reference numeral 61 is a rocking roller conveyor 12
A safety cover body having an arcuate cross section that covers the lower side of the free end side (front end and left and right ends) of the slide roller, reference numeral 62 is a flap plate provided at an appropriate position on the slide plate 43 of the swing roller conveyor 12, and the swing of the flap plate 62 is performed. A sensor (not shown) related to the rotation detects that the corrugated cardboard box W, which is an object to be conveyed, is placed on the rocking roller conveyor 12 in the raised position, and the sliding plate 33 of the fixed tilting table 30 detects the fact. The sensor (not shown) related to the swinging rotation of the flap plate 63 provided can also detect that the cardboard box W is on. O of both these sensors
In the N state (the state where the cardboard box W is present), the safety function is performed so that the piston rod 45a of the fluid pressure actuator 45 does not inadvertently protrude.

When the corrugated cardboard box W is placed on the rocking roller conveyor 41, the operator P operates the fluid pressure actuator 45 with a foot switch or the like to tilt the rocking roller conveyor 41 downward, and the rocking roller conveyor 41 is tilted. When the upper surface of the conveyor 41 comes to be substantially flush with the upper surface of the fixed tilt table 30,
The locking body 49 automatically sinks via the link 55, and the corrugated board box W slides toward the lower end of the fixed tilt base 41. Therefore, in this state, the worker P takes out the article from the cardboard box W and executes the work. When there are no articles in the cardboard box W, the cardboard box W may be removed from the fixed tilt table 30 and folded.

[0019]

As described above, according to the present invention, the stopper for preventing the fall of the transported object is projected upward at the lower end of the inclined working portion, and the notch portion above the stopper is provided.
An oscillating roller conveyor having a rotation center near the end of the conveyor is disposed, and an operator operates the fluid pressure actuator to cause the oscillating roller conveyor to have an upper surface that is the conveying surface of the conveyor. The operation can be selectively performed in a posture in which it is substantially flush with the posture in which it is flush with the upper surface of the inclined work portion. When the upper surface of the rocking roller conveyor is substantially the same as the inclined surface of the working unit, the link mechanism provided on the lower surface side of the rocking roller conveyor can move up and down to the free end side of the rocking roller conveyor. Moreover, the locking body that is biased upward is automatically lowered from the inclined surface of the working unit.

Therefore, since the inclined working portion and the upper surface of the rocking roller conveyor stop on the same plane, and the locking body sinks below the flat surface, the object to be conveyed on the rocking roller conveyor. Even if the size is smaller than the width dimension of the rocking roller conveyor, it can be smoothly moved toward the working unit.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pallet.

FIG. 2 is a plan view of a pallet.

FIG. 3 is an enlarged sectional view taken along the line III-III of FIG. 2;

FIG. 4 is a schematic side view of a payout unit and a working unit.

FIG. 5 is a side view of a transport roller conveyor unit.

FIG. 6 is a plan view of a transport roller conveyor unit.

FIG. 7 is a side view of a payout unit.

8 is a view taken in the direction of arrows VIII-VIII in FIG. 7;

FIG. 9 is a side view of a working unit.

FIG. 10 is a partially cutaway plan view of a working unit.

FIG. 11 is an enlarged side sectional view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pallet 1a Bottom plates 1c, 1c Front and rear parts 2 Blocks 5 Recesses 6 Protrusions 7 Engagement engaging parts 11 Discharging parts 12 Conveyor roller conveyor 13 Working part 30 Fixed tilt table 32, 43 Sliding plates 34 Stoppers 40 Spindles 41 Swing rollers Conveyor 42 Roller 44 Frame frame 45 Fluid pressure actuator 47 Shock absorber 48 Abutment piece 49 Locking body 52 Supporting member 53 Supporting pin 54 Spring 55 Link 58, 59 Pushing roller 60 Safety cover body

Claims (1)

(57) [Claims] 1. An article comprising: a conveyor for conveying an object to be conveyed such as a cardboard box containing an article, and a working section which is connected to a terminal end of the conveyor and is arranged in an inclined downward direction. In the handling device, a stopper for preventing the fall of the conveyed object is provided at the lower end of the working portion so as to project upward, and a notch portion above the stopper is oscillated around the end portion of the conveyor as a center of rotation. A moving roller conveyor is provided, and the rocking roller conveyor is rockingly driven into a posture in which its upper surface is substantially flush with the transport surface of the transport conveyor and a posture in which it is flush with the upper surface of the working section. While supporting by the fluid pressure actuator, a locking body is provided at the free end side of the rocking roller conveyor so as to be movable up and down and biased upward, and the rocking roller conveyor is provided on the lower surface side with the rocking body. The upper surface of the moving roller conveyor is the inclined surface of the working section When a substantially identical handling apparatus of the transported object, characterized in that a link mechanism that drops from the inclined surface of the working portion of the locking member.