JPH045607B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to controlling the conveyance of plate bodies such as plywood, decorative boards, veneer veneers, etc. from a lying state to an upright state, and conversely from an upright state to a lying state. It is suitable for stand-up drying of bodies, stand-up cooling, or carrying in and out of a horizontal multi-stage press consisting of a plurality of stages of hot plates arranged side by side in an openable and closable manner between frames placed opposite each other on the left and right sides.

Normally, in the plywood manufacturing process, when drying or cooling a board by controlling its upright position, a plurality of forks are fixed perpendicular to the conveying direction between a pair of chain conveyors, and the board is placed between these forks. A body was interposed between the two lower end portions of the conveyor, and its two lower ends were supported by the link chains of a pair of chain conveyors, and the conveyor was conveyed according to the circumferential speed of the chain conveyor.

However, in order to make the chain conveyor an endless track, a slight clearance is set between the single link chains that fix the forks, and especially at the upper turn of the endless track, the inserted plate cannot be When raising the link chain from a lying position, the lower part of the link chain may be caught between the expanded clearances, or distortion may occur between the link chains due to rotation of the chain conveyor, vibration, etc. during upright transportation.
This resulted in damage to the lower end of the plate.

In addition, in this type of fork that has a plate that can be raised and lowered freely, its lower end is merely fixedly supported, and the upper free end of the fork deviates from the upright state to any direction, allowing the entire fork to be properly positioned. It had become impossible to regulate.

Therefore, for example, when upright plates to be processed are carried all at once between the hot plates of each stage of a horizontal multistage press from between the forks, the plates to be processed collide with the sides of the hot plates. Or, conversely, if the treated plates are transported in an upright state from between the hot plates of each stage to between the forks, the treated plates will collide with the sides of each fork.

In view of the above, the present invention sets the upper conveyance surface of a belt conveyor having at least an endless track higher than the upper conveyance surface of the endless track of a chain conveyor installed in parallel, so that both conveyors are moved at approximately the same speed. A plate body that is rotated and whose lower end portion is supported and conveyed on a belt conveyor is inserted between a plurality of shelves arranged at regular intervals on a chain conveyor so that it can rise and fall freely, DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the device of the present invention will be explained below based on the configuration based on the accompanying drawings. For convenience, FIGS. 1 to 4 show the case where the apparatus of the present invention is applied to a horizontal multistage press, and FIGS. 5 to 7 show respective embodiments of the apparatus of the present invention.

First, a horizontal multistage press will be explained based on FIGS. 1 to 4.

Through a pair of upper and lower cross beams 1 and 2 arranged at arbitrary intervals in the vertical direction and the front-back direction,
Frames 3 and 4 are installed on the left and right sides, and a plurality of heat plates 6 and moving members 8 protruding from both sides of the upper part of the movable platen 7 are engaged with the rails 5 laid on the upper cross beam 1. A ram 10 of a fluid cylinder 9 installed on one frame 3 is attached to the back of a movable platen 7, so that the hot plate 6 and the movable platen 7 can be opened and closed.

Brackets 11 attached near the four corners of the hot plate 6 and movable plate 7 are bridged with gate-shaped regulating devices 12 to maintain equal spacing. An outlet 13 and a discharge outlet 14 are installed at the bottom to supply and discharge the heating medium. Furthermore, the hot plate 6
A pair of notched grooves 15 are bored in the lower part of the lower crossbeam 2, and a conveyor 17 consisting of a plurality of rolls for carrying in, supporting, and carrying out the plate 16 is installed below the lower crossbeam 2.
It is arranged in the upper machine frame 18.

Next, a push-up body 19 having a length of all stages of hot plates 6 capable of intervening in the notch groove 15 is moved to the conveyor 17.
It can be moved in and out of the conveyance surface by a crank lever system, while the left and right frames 3,
A pair of connecting beams 20 are arranged between the presses 4 and 4 so as to be movable up and down by the fluid, and push bodies 21 are attached to the connecting beams 20 at intervals of 6 hot plates when the press is opened.

Plate body 1 of horizontal multi-stage press 22 having the above configuration
6. A device according to the present invention is installed in the loading or unloading direction, and this will be explained below. In addition, what is shown in FIGS. 1 to 3 is a plate 1.
It is used as an unloading device for No. 6.

First, a pair of drive shafts 24 and driven shafts 25 are supported facing each other on a frame 23 at an arbitrary interval, and chain wheels 26 and 27 are respectively attached to both ends of these drive shafts 24 and driven shafts 25. Chain wheel 2 fitted and placed oppositely
A pair of chain conveyors 29 are formed by endlessly suspending a link chain 28 between 6 and 27.

An attachment 30 is attached to the upper end of each link chain 28, and a frame member 31 is erected and fixed to the upper part of this attachment 30, and each pair of frame members 3
1 are connected by an intermediate member 32 perpendicular to the rotating direction of the chain conveyor 29 to form a shelf 33.

In order to keep the left-right distance between adjacent shelves 33 constant, regulating members such as spacers and rollers are attached to the shelves 33 at positions that do not interfere with the loading, placing, transporting, or unloading of the plates 16. do. In this embodiment, an elastic body such as rubber is attached to the upper end of each frame member 31 constituting the shelf 33 so as to have the same spacing between the left and right sides of the hot plates 6 and to reduce the impact between adjacent ones. A spacer 34 is attached.

Further, on the outer side of the attachment 30,
Each of the guide rollers 35 is supported in a protruding manner, and the guide rollers 35 are formed by excluding the folded portions of the chain wheels 26 and 27.
U-shaped upper guide 3 that regulates the upward trajectory
6 and an L-shaped lower guide 37 that regulates the lower track, thereby ensuring that the endless track of the chain conveyor 29 is substantially horizontal.

Next, the chain wheel 2 of the drive shaft 24 and the driven shaft 25
A plurality of pulleys 38 and 39 are fitted in adjacent positions of the chain wheels 26 and 27, that is, on the outside of each chain wheel 26 and 27, or on the inside as in this embodiment, and the pulleys 3 are arranged oppositely.
A belt 40 is hung endlessly between 8 and 39 to form a belt conveyor 41. At this time, in order to maintain the chain conveyor 29 and the belt conveyor 41 at approximately the same speed, at least the pitch diameter of the chain wheel 26 on the drive shaft 24 side and the diameter to the top surface of the belt 40 suspended around the pulley 38 are made approximately the same. .

Also, regarding the driven side pulley 39, the third
The pulley 38 on the driving side has a larger diameter compared to the one shown in FIG. However, in either case, the lower surface of the belt 40 is supported by a guide rail 42 projecting from above the frame 23.
The upper conveyance surface of the belt conveyor 41 is at a higher position than the upper conveyance surface of the chain conveyor 29.

That is, in FIGS. 3 and 5, a guide roll 43 that smoothly guides the belt 40 is supported on a guide rail 42 facing the pulley 38 on the drive side, and a guide roll 43 on the driven side having a larger diameter than the chain wheel 27 is supported. A belt 40 suspended around a pulley 39 is kept in a substantially horizontal state.

In addition, the one shown in FIG. 6 is the driven side pulley 39.
Since the diameter of the chain wheel 26 is approximately the same as that of the chain wheel 26, the guide rail 42 is stretched in an arc shape up to the upper part of the belt conveyor 41 on the driven side, and a guide roll 44 is protruded and supported at the tip of the guide rail 42.
After being suspended around a pulley 39, it is made into an endless shape via a tie roll 45.

Furthermore, in the one shown in FIG. 7, the driven-side pulley 39 has approximately the same diameter as the chain wheel 26, as in FIG. It is held higher than the upper conveyance surface of the upper guide 36 via the guide rolls 43 and 44,
An arc-shaped fixed sliding guide 46 having a diameter larger than that of the chain wheel 27 is disposed at the upper folded portion of the chain wheel 27 .

Therefore, in either case, interference between the plate body 16 whose lower end is supported by the belt conveyor 41 and the chain conveyor 29 and the upper guide guide 36 at the upper folded portion of the belt conveyor 41 is avoided. .

Next, on the pedestal 23 is a conveyor 4 consisting of a plurality of rolls for carrying in and carrying out the plate 16.
7 is arranged so as to be able to protrude and retract from the upper conveyance surface of the belt conveyor 41 by fluid movement, and this conveyor 47 is set at the same height as the conveyor 17 of the horizontal multistage press 22 at its protrusion limit. ing.

In addition, 48 in the figure is a take-out conveyor, and the shelf 33
The upper plate 16 is taken out onto the lifting table 49.

Next, the action will be explained.

First, the operation of the horizontal multi-stage press 22 will be briefly explained.

When the ram 10 is contracted by the operation of the fluid cylinder 9, the hot plate 6 and the movable platen 7 are moved from the hot plate 6 located at the right end to the four corners thereof by the engagement movement of the moving member 8 and the rail 5. The free end of the tool 12 is
The heating plates 6 are brought into contact with the brackets 11 of the adjacent heating plates 6, and the heating plates 6 of each stage are placed in a press release state while making the left and right intervals of the heating plates 6 equal in order.

Next, the plates 16 are carried in all at once from a loader located on the carry-in side between the hot plates 6 of each stage, which are maintained at a required temperature by being supplied with a heating medium. The plate body 16 to be carried in is supported at its lower end by the drive of the conveyor 17, and is conveyed to the center position in the front-rear direction of the hot plates 6 of each stage, and stopped at that position.

Next, by protruding the push-up body 19 to the notch groove 15, the plates 16 supported in parallel on the conveyor 17 are lifted, and the hot plates 6
insert it inside. Therefore, the plate body 16 reaches inside the hot plate 6 in the vertical direction as well, and is pressed closed by the extension movement of the ram 10, and is heated and pressurized.

After heating and pressurizing, when the press is opened again by the contraction movement of the ram 10, the push-up body 19 is temporarily submerged below the conveying surface. Furthermore, by lowering the connecting beam 20, the pusher body 21 is interposed between each stage of the hot plates 6, and the lower end of the plate body 16 after being heated and pressurized is pushed down onto the conveyor 17.

At this time, on the unloader side, each shelf 3
3 are made to stand by at equal intervals via spacers 34, and the conveyor 47 is connected to the belt conveyor 41.
The plates 16 are made to protrude from below until they are in substantially the same phase as the transport conveyor 17, and then the plates 16 are carried out all at once to the unloader side, and their ends are regulated by stoppers. Therefore, the plate 16 is inserted between the shelves 33 of each stage in an upright state, with its lower end supported by the conveyor 47, as shown in the approximate center of FIGS. 5 to 7.

Next, the conveyor 47 is retracted, and the plate body 16
transfer the lower end of the belt to the upper surface of the belt 40 of the belt conveyor 41, and apply rotation to the drive shaft 24,
The chain conveyor 29 and belt conveyor 41 are rotated at approximately the same speed. Incidentally, it is preferable that this rotational speed is determined in synchronization with the press cycle of the horizontal multi-stage press 22.

Therefore, the plate body 16 has its lower end connected to the belt conveyor 41.
In addition, the upper part is supported between adjacent shelves 33, and is conveyed in parallel in an upright state by rotation of the chain conveyor 29 and belt conveyor 41 at approximately the same speed, and in the upper folded part, as the shelves 33 fall down. They are sequentially loaded onto the lifting platform 16 via the take-out conveyor 48.

In addition, in the upper folded portion shown in FIGS. 5 and 6, a belt 40 is interposed at the lower end of the plate 16 at least until just before the plate 16 is taken out and delivered to the conveyor 48, so that the belt 40 is smooth. However, in the upward folding portion shown in FIG. 7, the plate 16 is transferred from the top of the belt 40 onto the fixed sliding guide 46, and some sliding resistance is generated at the lower end. If the plate body 16 is made of relatively rigid material, such as heated and pressed plywood, decorative board, etc., buckling, damage, etc. will not be a problem.

Although this embodiment has been described as an unloading device disposed on the unloader side of the horizontal multi-stage press 22, this can also be used as a loading device disposed on the loader side, or for upright drying and upright cooling of the plate body 16 described above. It is also optional to adopt it as a device for use. That is,
When used as a carry-in device, the conveyance direction of the plate 16 shall be opposite to that shown in the attached drawings, and when used as a stand-up drying or stand-up cooling device, at least the fixed slide shown in FIG. Dynamic guide 4
6 shall be arranged at the upper folded portion on the drive shaft 24 side.

As described above, according to the present invention, the upper conveyance surface of the belt conveyor having at least the endless track is set higher than the upper conveyance surface of the endless track of the chain conveyor installed in parallel, so that both conveyors are approximately the same. The plate body is rotated at a high speed and its lower end portion is supported and conveyed on a belt conveyor, and is inserted between multiple shelves arranged at regular intervals on a chain conveyor so that it can rise and fall freely. The plates are supported at their lower ends by a belt conveyor and their upper parts between adjacent shelves and conveyed in parallel in an upright state.Also, at the upper turning point, the plates are transported from the upper conveyance surface of the chain conveyor. This allows the plate to be held at a high position, and as described above, it is possible to reliably prevent damage to the lower end of the plate that occurs in conventional devices during upright transportation and at the upward folding section.

Furthermore, since the spacers attached to the tops of the shelves equalize the distance between adjacent shelves, each shelf can be regulated almost vertically, and the upright plates can be moved in a direction perpendicular to the transport direction. The work of loading and unloading becomes smoother.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway plan view of an embodiment of the present invention applied to a horizontal multistage press, Fig. 2 is a front view of Fig. 1, Fig. 3 is a side view of Fig. 1, and Fig. 4 is a partially cutaway plan view of an embodiment of the present invention applied to a horizontal multi-stage press. A perspective view of the main parts of a horizontal multi-stage press, FIG. 5 is a partially cutaway side view showing the operation of one embodiment of the present invention, and FIG. 6 is a partially cutaway side view showing the operation of another embodiment of the present invention. figure,
FIG. 7 is a side view showing the operation of another embodiment of the present invention. 6... Hot plate, 24... Drive shaft, 25... Driven shaft, 26, 27... Chain wheel, 28... Link chain, 29... Chain conveyor, 30... Attachment, 33... Shelf, 34... ...Spacer, 35...
...Guide roller, 36...Top guide, 37...
...Lower guide, 38, 39...Pulley, 40
...Belt, 41...Belt conveyor, 42...
Guidance track.

Claims (1)

[Claims] 1 A chain wheel is fitted to each of a pair of shafts installed at an arbitrary interval, an endless link chain is suspended between the chain wheels to form a chain conveyor, and an upper part is connected between each link chain through an attachment. Place multiple shelves with spacers attached at regular intervals,
Further, a plurality of pulleys are fitted onto the pair of shafts adjacent to the chain wheel, and at least the pitch diameters of the pulley fitted to the drive shaft and the chain wheel are approximately the same, and there is a space between the pulleys. A belt conveyor is formed by hanging an endless belt, and guide rails are provided to make the upper conveying surface of the belt conveyor higher than the upper conveying surface of the chain conveyor. Device.