JP2503875B2 - Concrete block Conveying device for curing objects - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention conveys a rack on which ready-mixed concrete blocks are loaded by a loader or a formwork into which ready-mixed concrete is poured (hereinafter, referred to as an object to be transferred in the present invention) into a curing room and the curing is completed. After that, the present invention relates to a concrete block curing object transfer device for carrying out the object to be transferred from a curing room and unloading it with an unloader.

[0002]

2. Description of the Related Art As a concrete block curing device, as shown in Japanese Patent Publication No. 48-31739, a curing chamber is a U-shaped tunnel type, and a rack on which a concrete block is loaded by a loader is used. It has been proposed to send a rack loaded with cured blocks pushed out from one end of the curing room and pushed out from the other end to an unloader for unloading. However, because it was a U-shaped tunnel type curing room, a large installation area was required, and the U-shaped intermediate part became a wasteful space that could not be used effectively, and its equipment cost was also high.

Further, in Japanese Examined Patent Publication No. 5-4887, a formwork on which concrete has been poured is loaded on a trolley, and the trolley is moved to a traverse trolley and then moved to the front of a curing room.
There is disclosed a device in which each trolley is left in a curing chamber for curing, and after curing, the trolley is moved again to a traverse trolley and then sent to an unloading unit to hang the formwork. As described above, in the method in which each trolley is left in the curing chamber for curing, a large number of trolleys have to be prepared, which makes it difficult to increase the equipment cost.

[0004]

Many curing rooms actually installed are provided with a plurality of long and narrow steam-blowing chambers, each of which has an openable / closable door.
The rack from the loader is packed from the back of the curing room, and the rack on the front side of the room is carried out to the unloader by a forklift. In this way, working with a forklift without cracking or damaging the ready-mixed concrete block requires considerable skill, but in recent years, it has become increasingly difficult to recruit such a skilled forklift driver. It was

In view of the above-mentioned circumstances, the present invention can utilize existing loaders, unloaders, and curing chambers, and can be arranged at a place where a forklift has conventionally traveled, and is excellent in functionality and economy. It is an object of the present invention to provide a carrier device for a concrete block curing object.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a concrete block curing object transfer device for connecting a loader / unloader side and a curing room side divided into a plurality of chambers by partition walls. A pair of roller bases for transporting the transported object linearly across the front of the unloader and the loader , and a roller base for transporting the transported object on the roller base.
The conveyor for towing the transported object that is towed from the starting point side to the ending point side, and the transported object is pushed from the end point side of the roller base.
The pusher puller that pulls out and pulls to the starting side is arranged in parallel, and the curing chamber is parallel to the roller base.
A self-propelled transporter and a transported object carrier mounted on the transporter are installed on the transporter orbit laid across the front of the transporter. Equipped with a lift table and roller row that can be mounted, and can be loaded onto the unloading rail and loading rail laid at right angles to the transport track for the transporter outside the starting and ending points of the roller base, as well as the curing room rail. The pusher puller transfers the transferred object on the roller base onto the loading rail, transfers the transferred object onto the roller row of the transferred object carrier, and transfers the transferred object on the unloading rail to the transferred object. Characterized in that the transferred object on the roller row of the transferred object carriage is transferred to the roller base. A.

In the conveyor for towing an object to be transported, one end on the loader side is rotatably pivoted by a support shaft, and the other end on the unloader side is tiltable by a hydraulic cylinder, so that the endless chain is stretched. It is preferable that claws that can be engaged with hooking fittings provided at the bottom of the object to be conveyed are attached at predetermined intervals.

Further, the pusher puller has a pusher claw attached to one end of a connecting rod driven by a hydraulic cylinder, the pusher claw not falling in the pushing direction but falling in the opposite direction.
A fixed puller claw shall be attached to the other end.

The lift table of the object carrier truck is supported by four receiving rollers attached to each of the front, rear, left and right arms which can be tilted up and down by hydraulic cylinders, and the four arms have two arms. Connect the front and back with a torsion bar,
It is advisable to synchronize two sets of gears attached to both ends of the torsion bar with each other.

[0010]

[Operation] A plurality of objects to be conveyed are lined up on the roller base in abutting state, and when loading and unloading by the loader and unloader are completed for each one, the above-mentioned plurality of objects to be conveyed are conveyed by the conveyor for towing the objects. By moving the conveyed items forward in unison, the conveyed items to be cured will come to the front end of the roller base.The pushers are then pushed onto the roller row of the conveyed item conveying carriage that is waiting on the loading rail. Push out with the pusher claw of the puller.

The object to be transferred on the roller row of the object-carrying carrier carrying the object to be transferred is lifted by the lifting platform,
In that state, the transported object carriage returns to the transporter, the transporter travels to the front of the room in the curing room where the transported object is stored, and then stops. When the transported object is placed on the transported object mount, the lifting platform is lowered, and then the transported object transport vehicle returns to the transporter.

Next, the transporter travels to the front of the curing chamber of the curing room and stops, and the transport vehicle for transporting the transport object enters the transport chamber, and the transport object on the front side is lifted to be mounted on the lift table. , And return to the transporter again.
The transporter then travels to the front of the unloading rail and stops, and the transported object carriage moves onto the unloading rail. At this time, the object to be transported on the elevating table avoids the puller claw of the pusher puller.

The object to be transferred on the object transfer carriage on the unloading rail is pulled in by the puller claw of the pusher puller when a space for one object to be transferred is formed at the rear end side of the roller base. . At that time, the conveyor for pulling the transported object is tilted so that the hooking metal provided at the bottom of the transported object does not hit the claw of the conveyor for transporting the transported object. After the transfer of the transported object is completed, the transported vehicle returns to the transporter, the transporter travels to the front of the loading rail and stops, and the transported vehicle moves into the loading rail and waits as described above. To do. The above operation is repeated.

[0014]

[Embodiment] FIG. 1 shows a case where the object to be conveyed is a rack.
Will be used to outline the entire molding machine. Fresh concrete blocks made by the molding machine 1 are loaded on a rack 3 by a loader 2, and the rack 3 is sent to a curing room 4 for curing, and the cured concrete block is an unloader 5
It is the same as the conventional one in that the pallet is removed from the rack 3 by the pallet, the pallet is removed by the depalleter 6, and then the palletizing device 7 performs the palletizing. The curing room 4 is provided with 5 rows (10 rows of racks 3 are stored in each row) of long and narrow rooms provided with doors (not shown) that can be opened and closed on the entrance and exit sides, and steam outlet pipes (not shown) are provided for each. Plumbed indoors.

In the carrying device according to the present invention, a pair of roller bases 8, a rack towing conveyor 9 and a pusher puller 10 are linearly arranged across the front of the unloader 5 and the loader 2. . As shown in detail in FIG. 2, the rack towing conveyor 9 has a cam on which one end on the loader side is rotatably pivoted by a support shaft 18 and the other end on the unloader side is rotated by a hydraulic cylinder 19. It is possible to tilt by 20. Well, cam 20
Alternatively, the hydraulic cylinder 19 may be allowed to directly tilt. Claws 21 are attached to the stretched endless chain at predetermined intervals. In the substantially horizontal state of FIG. 2, the claws 21 engage with the hooking fittings 23 provided on the bottom of the rack 3, so that when the drive motor 22 rotates, the racks 3 mounted on the roller base 8 move forward all at once. . However, in the tilted state as shown in FIG. 3, the engagement between the hook metal fitting 23 of the rack 3 and the chain claw 21 is released. A limit switch operator (not shown) is attached to each rack 3 side, and a limit switch (not shown) is provided on the frame side of the rack towing conveyor 9 at a position where it is desired to be stopped. The drive motor 22 is controlled. As shown in FIG. 4, there are three rack loading positions in the rack 3 in addition to the two loading positions in the front and rear. , Front and rear hook metal fittings 24, 25 are provided.

FIG. 5 shows details of the pusher puller 11. At one end of the connecting rod 28 driven by the hydraulic cylinder 26, the stopper 30 does not fall in the clockwise direction,
In the opposite counterclockwise direction, a pusher claw 27 that pivots and falls like a two-dot chain line is attached, and a fixed puller claw 29 is attached to the other end. 31 is a guide rod, 3
Reference numeral 2 is a guide roll that sandwiches the guide rod 31. When the rod of the hydraulic cylinder 26 extends, the pusher claw 27 cooperates with the hook metal fitting 24 of the rack 3 (see FIG. 6) to push out the rack 3 at the front end of the roller base 8. Also,
The puller claw 29 cooperates with the hooking fitting 25 of the rack 3 (see FIG. 7) to draw the rack 3 to the empty space at the rear end of the roller base 8. Racking hardware 23, 2
As shown in FIG. 8, 4 and 25 are arranged with their phases shifted.

Returning to FIG. 1 again, the transporter running track 12 parallel to the rack towing conveyor 9 and the transporter running track 12 orthogonal to the transporter running track 12 outside the starting point and the ending point of the rack towing conveyor 9, respectively. A curing indoor rail 14 is laid in each of the loading rail 13, the loading rail 11, and the curing chamber 4, and a rail 16 is also provided on the transporter 15 on the track 12 and a rack transport carriage 17 is mounted thereon. Is riding.

FIG. 9 and FIG. 10 show details of the transporter 15 and the rack transport carriage 17. The rack carrier truck 17 is provided with a roller row 33.
In the row 33, the rack carriage 17 is loaded with the loading rail 1.
1 and unloading rail 13
The height is the same as that of the roller base 8, as shown in FIG. The rack transport cart 17 is also provided with a lifting table 34 and lifting means 35 for the lifting table 34. The elevating means 35 shown in the figure has four front, rear, left and right arms 38, 38 which are synchronized by meshing gears 37, 37 provided at both ends of two torsion bars 36 with a cylinder 39, 39 respectively as a solid line and two points. As shown by the chain line, it can be tilted up and down, and the receiving rollers 40 attached to the four arms 38, 38,
The lifting table 34 is supported by 40. Since the rack 3 loaded on the elevating table 34 can be moved up and down, the rack 3 can be carried in and out without colliding with the rack frame 41 in the curing room 4 (see FIG. 12), and the rack transport cart 17
It is possible to prevent the puller claws 29 from colliding with each other when getting on the unloading rail 13. In FIG. 12, the proximity switch 42 provided on the side of the rack transport carriage 17 and the position detection body (iron piece) 43 provided for each rack mounting position on the side of the rack mount 41 have the rack transport carriage 17 at a predetermined position in the curing chamber. It is for making it possible to stop.

The operation of the rack towing conveyor 9 and the pusher puller 10 will be described with reference to FIG. FIG.
In the state (3) (3), the rack 3 at the front end of the roller base 8 has the pusher claw 27 of the pusher puller 10.
Is pushed out as indicated by reference numeral a and rides on the rack carrier 17 waiting on the loading rail 12,
The state shown in FIG. In the returning process of the pusher claw 27 indicated by the symbol C, even if the claw 27 hits the bottom of the rack 3, it is returned and returned to the original position. The puller claw 29 moves unnecessarily as indicated by symbols B and D. Next, operate the rack towing conveyor 9,
The group of racks 3 on the roller base 8 is moved by the distance indicated by reference numeral E to bring it to the state of (C), and the loader and unloader are restarted. In the state of (C), a space for one rack is formed on the rear end side of the roller base 8, and the rack 3 loaded with the cured blocks stands by on the unloading rail 13. Therefore, after the rack towing conveyor 9 is tilted, the rack 3 is pulled onto the roller base 8 by the puller claws 39 as indicated by the reference numeral, and the nails 39 are returned as indicated by the reference numeral C when finished. At this time, the pusher claw 28 moves unnecessarily as indicated by symbols G and G. After pulling in, the rack towing conveyor 9
Is returned to the horizontal state, the claw 21 is engaged with the hook metal fitting 23 of the rack 3 (D), and the loader and unloader are restarted. When the loading and unloading of the blocks is completed as shown in (E), the rack towing conveyor 9 is operated to move the rack 3 group on the roller base 8 by the distance indicated by the reference numeral (F). To In this state, the rack transport vehicle 17 is on standby on the loading rail 12, and thus the state has returned to the state of (A).

Although the rack has been described above as an example, the present invention is not limited to this, and after pouring concrete into a form for molding a large concrete block,
It can also be applied when the entire formwork is sent to a curing room for curing.

[0021]

According to the present invention, a roller base, a car conveyor for towing an object to be conveyed, and a pusher puller are arranged linearly across the front of an existing loader and unloader, and in parallel with this row. A transport track for the transporter is laid in a straight line across the front of the curing room, but it can be applied to the conventional work area of a forklift truck, saving space without wasting space. Not only is it excellent, but it requires only one transporter and one transported object carrier, which is economical.

[Brief description of drawings]

FIG. 1 is a plan view of a molding apparatus that employs a conveying device for a concrete block curing object according to the present invention.

2 is a side view of the conveyed object towing conveyor shown in FIG. 1. FIG.

FIG. 3 is a side view when the conveyer for towing an object to be conveyed in FIG. 2 is inclined.

FIG. 4 is a side view of a rack that is the transported object of FIG. 1.

5 is a side view of the pusher puller of FIG. 1. FIG.

FIG. 6 is a front view showing the engagement between the pusher claw of FIG. 5 and the rack hooking metal.

FIG. 7 is a front view showing the engagement between the puller claw of FIG. 5 and the rack hooking metal.

FIG. 8 is a front view showing the interrelationship between the hook of the object to be conveyed of FIG. 1, the conveyor for pulling the object to be conveyed, and the pusher puller.

FIG. 9 is a side view showing details of a transporter and a carrier for transporting an object to be transported.

FIG. 10 is a diagram when viewed from the left side of FIG. 9.

FIG. 11 is a diagram showing a relationship between a roller row of a transported object carriage and a roller base.

FIG. 12 is a front view of an object-carrying carrier in a curing chamber.

FIG. 13 is an operation explanatory diagram of the present apparatus.

[Explanation of symbols]

2 ... loader, 3 ... transported object (rack), 4 ... curing room,
5 ... Unloader, 8 ... Roller base, 9 ... Conveyor for towing transported object, 10 ... Pusher puller, 11 ... Loading rail, 12 ... Transporter running track, 1
3 ... Unloading rail, 14 ... Curing room rail, 1
5 ... Transporter, 17 ... Transported object carrier, 33 ...
Roller row of the transported object carrier, 34 ... Lifting platform

Claims (4)

(57) [Claims] 1. A conveying device for a concrete block curing object which connects a loader / unloader side and a curing chamber side divided into a plurality of chambers by a partition wall, and which traverses in front of the unloader and the loader. To be transported linearly
A pair of roller bases for conveying objects and the roller bases
Direct the upper transported object from the starting side to the ending side of the roller base.
Only the object to be conveyed towing conveyor which towed, transported object the
Push the roller base from the end side and pull it to the start side.
A pusher puller is installed in parallel, and a self-propelled transporter and its transporter are installed on the running track for the transporter, which is laid in parallel with the roller base in front of the curing room. <br /> An object-carrying carrier is placed on the carrier, and the object-carrying carrier is provided with a lifting table and a roller row on which the object can be mounted, and on the outside of each of the starting point and the ending point of the roller base. It is not possible to get on the unloading rail and loading rail laid at right angles to the transporter running track, and the rail of the curing room.The pusher puller waits for the transported object on the roller base on the loading rail. Transfer of the transported object carrier to the row of rollers and the transfer of the transferred object carrier waiting on the unloading rail. Conveying apparatus of concrete block cured for objects to be conveyed to the transported object located on chromatography column and performing the transfer onto the roller base. 2. The conveyed object towing conveyor has one end on the loader side rotatably pivoted by a support shaft and the other end on the unloader side tiltable by a hydraulic cylinder,
2. The apparatus for transporting a concrete block curing transported object according to claim 1, wherein the stretched endless chain is provided with pawls, which are engageable with hooking metal fittings provided at the bottom of the transported object, at predetermined intervals. 3. A pusher puller is provided with a pusher claw at one end of a connecting rod driven by a hydraulic cylinder, the pusher claw not falling in the pushing direction but falling in the opposite direction, and the fixed puller at the other end. The apparatus for conveying a concrete block curing object according to claim 1, further comprising a nail for attachment. 4. The lift table of the transported object carriage is supported by four receiving rollers attached to each of four front, rear, left and right arms that can be tilted up and down by a hydraulic cylinder, and the four arms are two. 2. The conveyance of a concrete block curing object according to claim 1, wherein the front and rear of the torsion bar are connected to each other, and two sets of gears attached to both ends of the torsion bar are meshed with each other for synchronization. apparatus.