JPH0478528B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention stores stacked tires that have been stacked in multiple stacks in a face down state and is transported into a frame pallet, and also stores this frame pallet in a 90 The present invention relates to a shelf stacking device that performs shelf stacking work by tilting each tire upright.

[Prior art]

Traditionally, this type of shelving work involves storing stacked tires in pallets by hand, or by using a forklift equipped with a clamp arm capable of supporting stacked tires, or by clamping stacked tires from above and below. This is done by a driven roller conveyor.

[Problems to be Solved by the Invention] However, manual work or forklift work requires a great deal of labor and skill, resulting in poor working efficiency. Also, using a driven roller conveyor can improve work efficiency, but
If the stacked tires are eccentric with respect to the center of the storage position in the frame pallet, it is difficult to store them because they try to be stored in the eccentric state.

Furthermore, when the stacked frame pallets are tilted 90 degrees and the tires are raised up, the stacked tires remain compressed in the stacking direction due to the pressure due to their own weight, as shown in Figure 6. There were problems such as a bridging phenomenon occurring and having an adverse effect on the tires. In addition, in Fig. 6, the symbol T is the stacked tire, P is the pressure, and TB
indicates the bridging phenomenon area.

This invention was devised in view of the above-mentioned circumstances, and its purpose is to enable stacked tires to be reliably stored even if they are eccentric to the center of the storage position of the frame pallet. To provide a tire rack stacking device which can efficiently carry out the work of storing tires on a frame pallet and can prevent the bridging phenomenon that occurs when the frame pallet is tilted to raise the stored tires. .

[Means for solving problems]

The present invention includes a tire receiving conveyor that transports tires stacked in multiple stages to a position where they can be stored in an empty pallet, and a tire receiving conveyor that pushes the stacked tires on the tire receiving conveyor into the empty pallet for storage. an extrusion section, an automatic centering section provided in the extrusion section that aligns the eccentricity of the stacked tires along the center line of the storage position when extruding them into the empty frame pallet; At the same time, the stacked tires are floated at a small distance above the top surface of the tire receiving conveyor so that they can be moved freely in all directions, and the frame pallet containing the stacked tires is tilted 90 degrees and placed on the conveyor line. This tire racking device comprises a pallet tilting section for placing pallets, and a pallet sliding section for sliding the frame pallet placed on the conveyor line to prevent bridging of internally stacked tires.

〔Example〕

The present invention will be described below based on illustrated embodiments.

The tire shelf stacking device A includes a tire receiving conveyor 3 that conveys tires 1 stacked in multiple stages to a frame pallet 2 position, and a tire receiving conveyor 3 that pushes the stacked tires 1 on the tire receiving conveyor 3 into the frame pallet 2 for storage. an automatic alignment section 5 provided in the extrusion section 4 to adjust the eccentricity of the stacked tires 1 during extrusion into the frame pallet 2; The stacked tires 1 are floated a minute distance above the top surface of the tire receiving conveyor 3 so as to be movable in all directions, and the frame pallet 2 containing the stacked tires 1 is tilted by 90 degrees to create a conveyor line. a pallet tilting section 8 placed on the conveyor line 7; and a frame pallet slide section 9 for sliding the frame pallet 2 placed on the conveyor line 7 to prevent the bridging phenomenon of the tires 1 stacked on the shelves inside. It is made up of

The frame pallet 2 here is placed sideways on a tilting arm 8a of a pallet tilting section 8, which will be described later, and which is arranged in parallel with the tire receiving conveyor 3. (See Figures 1 to 3) The extrusion unit 4 is driven by a drive device 4a to drive the tire receiving conveyor 3 so that the tip of the extrusion unit 4 can be brought into contact with the stacked tires 1 and pushed out to be stored in the empty frame pallet 2.
It is composed of a push rod 4b that is provided on the top so that it can move forward and backward. In this embodiment, three pushing rods 4b are provided so that three stacked tires 1 can be pushed out into the empty pallet 2 at a time, and the pushing rods 4b can move forward and backward on the center line 2a of the storage position into the empty pallet 2. It is set in. Further, a self-aligning portion 5 that abuts against and pushes out the stacked tire 1 is provided at the tip of the pushing rod 4b that contacts the stacked tire 1.

The self-aligning parts 5 are provided at both positions at the same distance from the center line 2a across the storage position center line 2a of the frame pallet 2, and at positions perpendicular to the center line 2a, and are located on the vertical line of the center line 2a. It is made up of both tire contact rollers 5a, 5a extending in the stacking direction. In this embodiment, the tire contact roller 5a is divided into upper and lower parts, and is capable of contacting each tire 2 in a plurality of stages.

When the stacked tires 1 are pushed out by the pushing rod 4b of the pushing section 4, the tire contact roller 5 mentioned above
The arrangement position a allows alignment of the frame pallet 2 to the center of the storage position while abutting against and pushing out the stacked tires 1. During this alignment, the stacked tires 1 are movable in all directions by the floating portions 6. (See Figures 1 and 2 above.) The floating section 6 includes a swing base 6a that is swingably provided between the rollers 3a and 3a of the tire receiving conveyor 3, and a longitudinal axis of the swing base 6a. It consists of a plurality of free balls 6b provided in the direction, and is provided at the frame pallet 2 position of the tire receiving conveyor 3. (See Figures 1 and 4) The swing bases 6a interlock with each other and swing, and at the upper swing position, each free ball 6b protrudes from the top surface of the tire receiving conveyor 3 by a minute distance to form a ball conveyor. is configured to do so. From this, the stacked tires 1 on the tire receiving conveyor 3 at the frame pallet 2 position can be placed on the ball conveyor, that is, the stacked tires 1 are floated at minute intervals and moved in all directions by each free ball 6b. It can be made freely. When transporting the stacked tires 1 on the tire receiving conveyor 3,
Each free ball 6b is located at a position lower than the upper surface of the conveyor 3.

The pallet tilting section 8 consists of tilting arms 8a and 8b that are connected in an L-shape, and a bent section 8c of the tilting arms 8a and 8b.
It is configured to be rotatable in a vertical plane by a tilting drive device 8d around . It is supported by a bearing 10 between the tire receiving conveyor 3 and the transport conveyor line 7 at the bent portion 8c. (See Figures 1 and 3) The conveyor line 7 in this embodiment is as follows:
Its conveying direction is perpendicular to the conveying direction of the tire receiving conveyor 3, and it is provided on the conveying end side of the tire receiving conveyor 3. Therefore, the pallet tilting unit 8 rotates the tilting arm 8a, which places the frame pallet 2 in a sideways state, from the side position of the tire receiving conveyor 3 to the side position of the conveyor line 7, that is, in the conveying direction of the tire receiving conveyor 3. It is set up so that it is possible.

The pallet slide section 9 is provided at a position where the pallet frame 2 is placed on the tire receiving conveyor 3, and includes a contact roller 9a that abuts against the side surface of the pallet frame 2, and a contact roller 9a that is connected to the conveyor. It consists of a slide drive section 9b that moves forward and backward in the left and right directions perpendicular to the conveyance direction of the line 7.
Then, the contact roller 9a pushes the frame pallet 2, thereby causing the frame pallet 2 to slide.

In addition, in this embodiment, the transport conveyor line 7 is arranged so that the contact rollers 9a sandwich the frame pallet 2.
They are located on both sides of the machine and are designed to work together. (Refer to Figures 1 and 5) The stacking operation using the shelf stacking device A having such a configuration is first carried out by the tire receiving conveyor 3 in which the pallet is laid down on its side on the tilting arm 8a of the pallet tilting section 8. The stacked tires 1 are conveyed to a position where they can be pushed out and stored inside the frame pallet 2 placed thereon by the push-out section 4, and then stopped.

Next, put the stacked tires 1 in the storage position.
The tires are pushed out from above the tire receiving conveyor 3 by the extrusion section 4 and stored in the frame pallet 2 in 6 piles, divided into 2 times, every 3 piles.

When the stacked tires 1 are pushed out by the extrusion section 4, the self-aligning section 5 aligns the center of the storage position within the frame pallet 2, and the floating section 6 floats the stacked tires 1 at a minute interval.

Next, when the stacked tires 1 are stored in the pallet frame 2 and stacked on the shelves, the drive device 8d of the pallet tilting section 8 is activated to raise and transport the pallet frame 2 while being supported by the tilting arms 8a and 8b. Place it on the conveyor line 7.

Next, the frame pallet 2 placed on the conveyor line 7 is slid by the pallet slide section 9. As a result, it is possible to prevent the bridging phenomenon that occurs in the stacked tires 1 shown in FIG. 6 when the stacked tires are compressed by their own weight and stacked on a shelf in a frame pallet and then tilted. .

After the stacked tires 1 are stacked on the shelves in the frame pallet 2 in this way, the frame pallet 2 is tilted to raise the stacked tires 1 from the down position, and the frame pallet 2 is stacked on the conveyor line 7. The shelving work for transporting is completed.

Note that the empty frame pallet 2 in which the stacked tires 1 are not stored is conveyed by the conveyor line 7 from the opposite direction to the conveyance direction of the frame pallet 2 in which the stacked tires 1 are stored and stacked. The tire receiving conveyor 3 is
It is set on its side in the storage position. Then, the stacked tires 1 are transported by the tire receiving conveyor 3, and the above-mentioned shelf stacking operation is started.
The process in which the stacked frame pallets 2 are transported by the transport conveyor line 7 is resumed.

Note that the extrusion section, self-aligning section, floating section, pallet tilting section, and pallet sliding section of the tire stacking device of the present invention are not limited to those of the above-mentioned embodiments. an extrusion section that extrudes and stores stacked tires into the frame pallet; an automatic centering section that is installed in the extrusion section and adjusts the eccentricity of the stacked tires when extruding them into the frame pallet; When pushing out the stacked tires, the stacked tires are floated a minute distance above the top surface of the tire receiving conveyor so that they can be moved freely in all directions. What is the configuration of the pallet tilting section for placing the pallets and the frame pallet sliding section for sliding the frame pallets placed on the conveyor line to prevent the bridging phenomenon of the tires stacked on the shelves inside? But that's fine.

〔Effect of the invention〕

This invention has the above configuration and has the following effects.

By simply pushing out the stacked tires on the tire receiving conveyor into the frame pallet by the extrusion part, the stacked tires can be automatically stacked in the storage rack inside the frame pallet. Therefore, shelving can be done with a simple action of pushing out the tires, so the shelving work can be easily automated without requiring complicated storage locations.

In addition, the extrusion part is equipped with an automatic centering part that adjusts the eccentricity of the stacked tires during extrusion, so the stacked tires can be stored in the frame pallet just by extrusion, and the stacked tires can be placed in the specified position within the frame pallet. It can be stored securely.

Furthermore, when extruding the stacked tires at the extrusion section, a floating section is provided that allows the stacked tires to float a minute distance above the top surface of the tire receiving conveyor so that they can be moved in all directions. Alignment work can be carried out smoothly by allowing the stacked tires to move freely in all directions.

Storage rack for stacked tires When the stacked frame pallets are placed on the conveyor line by the pallet tilting unit, the sliding unit that slides the frame pallets is provided, so the stacked tires in the frame pallets also slide. It is possible to release the compressed state due to its own weight when stacked. Therefore, the bridging phenomenon shown in FIG. 6, which occurs when the stacked tires are stood up in a compressed state, can be prevented.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the shelving device of the present invention, FIG. 2 is a view taken along the line A-A in FIG. 1, FIG. 3 is a view taken along the line B-B in FIG. 1, and FIG. 5 is an enlarged sectional view taken along the line C--C in FIG. 1, and FIG. 6 is a front view showing the bridging phenomenon of tires that occurs when stacked on a shelf. A...Tire shelf stacking device, 1...Stacked tires, 2...Frame pallet, 2a...Storage position center line, 3...Tire receiving conveyor, 3a...Roller, 4...Extrusion section, 4a... Drive device, 4b...
... Extrusion section, 5 ... Self-aligning section, 5a ... Tire contact roller, 6 ... Floating section, 6a ... Swinging base, 6b ... Free ball, 7 ... Conveyor line, 8 ... Pallet tilting section, 8a, 8b...
Tilting arm, 8c...Bending portion, 9...Pallet slide portion, 9a...Abutment roller, 9b...Slide drive portion, 10...Bearing.

Claims (1)

[Claims] 1. A tire receiving conveyor that conveys tires stacked in multiple stages to a position where they can be stored in the empty pallet, and a pushing unit that pushes out the stacked tires on the tire receiving conveyor into the empty pallet and stores them. , which is provided in this extrusion section, and includes an automatic alignment section that aligns the eccentricity of the stacked tires along the center line of the storage position when extruding them into the empty frame pallet, and an automatic alignment section that aligns the eccentricity of the stacked tires along the center line of the storage position when extruding them into the empty frame pallet; A floating part that floats the stacked tires a minute distance above the top surface of the tire receiving conveyor so that they can move freely in all directions, and a frame pallet containing the stacked tires is tilted by 90 degrees and placed on the conveyor line. a pallet tilting section;
A tire shelving device comprising a pallet slide section that slides a frame pallet placed on the conveyor line to prevent bridging of tires stacked on the internal rack.