JPH09100058A - Plate piling device and conveyor system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a plate piling device capable of surely conveying even such a plate as being flexible and wide in proportion to thickness for stacking in piles, causing no damage to a plate surface at the time of conveying and stacking, and advantageous even with regard to the cost of equipment, running cost, maintenance and so on. SOLUTION: A plate S is positioned as centering on a conveyor passage and fed to a roller conveyor 7 by a symmetrical pair of centering guide rollers. In this conveyor 7, plural pieces of receiving rollers 9 are attached to a frame 8 being set up in parallel with the conveyor passage symmetrically so as to make them rotate laterally, and both side edges of the plate S are received by a peripheral groove of this roller and thereby this plate is conveyed through the roller rotation. In addition, as to the plate being apt to be flexible, it is conveyed in a state of being warped upward as in illustration, namely, the plate is received on a piler and the roller 9 is retracted, any support by means of this roller is released, and then the plate is dropped on a mounting surface from the upside as the constitution. According to this edge conveyance, no scratches or seams is caused on the plate surface, bringing about high reliability and simplicity in device structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piling device which conveys plate materials such as stainless steel plates cut to a predetermined size to a predetermined position and sequentially stacks them on a piler, and particularly to a thin plate and a wide plate. Therefore, a plate material piling device that can reliably transport even a plate material that warps when the center is floated, and can carry and stack without scratching the surface of the plate material,
The present invention relates to a carrier device that makes the most of the characteristics of the carrier means used in the device.

[0002]

2. Description of the Related Art For example, steel plates continuously cut by shear lines or the like are finally laminated on a piler, and after being quantitatively laminated, transferred to a storage place or the like. The "sliding method", which is low in equipment cost, is generally used for stacking plate materials such as steel plates on a piler.However, this method uses the following plate materials that have been transported onto the stacked plate materials. As it slides on top of each other, it scratches the plate material.

Therefore, as an improvement measure, "air cushioning method", "magnet attraction method", "vacuum attraction method",
"Combination method of vacuum suction box and belt conveyor with holes" is considered.

Further, as a means for conveying the plate material at least halfway, there is a "horizontal roller system" in which both sides of the plate material are supported by a pair of left and right roller conveyors as shown in FIG.

[0005]

Each of the above-mentioned conventional piling method or conveying method has advantages and disadvantages.

That is, the "air cushioning system" blows air from below onto the plate material dropped onto the piler from the conveying device to softly drop the material, thereby preventing friction between the plate materials which causes defects. This method is limited to light materials that can be floated by air pressure, and when inserting a slip sheet between plate materials to maintain the surface gloss like a stainless steel plate, the slip sheet is blown off. I can not use it. Furthermore, in the case of piling equipment of the type in which several pilers are arranged in the transport direction and plate materials are stacked on each piler, there is also the problem that air cannot be satisfactorily delivered to the piler part far from the air outlet. is there.

On the other hand, the "magnet attraction method" cannot be used when the plate material is a non-magnetic material, and the "magnet attraction method" and the "vacuum attraction method" require a return stroke after transfer. It also takes time for adsorption and desorption, and is not suitable for flow work.

Further, the "combined system of a vacuum suction box and a belt conveyor with a hole" in which a plate material is sucked and conveyed by a holed belt with a vacuum suction force requires a high equipment cost and running cost, and requires a long time for maintenance. The labor and cost also increase.

Further, in the "horizontal roller system", as shown in FIG. 7, when the left and right horizontal rollers R, R are rotated downward to release the support of the plate material S, the plate material is conveyed to the top of the piler. It can be dropped from above onto a mounting surface whose level is adjusted by a piler, and the mechanism and operation are simple and inexpensive, and work efficiency can be improved, but this method is a plate material with a wide width and easy to bend. In the case of, the plate material S is in a warped state as shown in the figure, the edge of the roller abuts on the surface, and the contact portion is streaked. In addition, poor contact between the rollers makes the transportation unstable, and meandering or the like may occur, causing a plate material to drop during the process.

The "horizontal roller method" is preferable in terms of quality maintenance even when the object to be treated is a plate material having no flexibility, because the surface of the plate material is scratched and scratched by the slip rotation of the roller. Absent.

It is an object of the present invention to realize and provide a piling device that eliminates the above-mentioned problems.
In addition, the present invention also provides a transfer device that makes the best use of the characteristics of the transfer means used in the piling device.

[0012]

A piling device according to the present invention comprises a pair of centering guide rollers provided on the left and right sides of an inlet section, a conveyor frame arranged parallel to the left and right of a conveying path continuing to the inlet section, and the left and right conveyor frames. A plurality of receiving rollers aligned in the longitudinal direction of the frame and mounted on the left and right conveyor frames, and a constant-velocity rotation driving mechanism for the receiving rollers provided on the left and right conveyor frames, respectively. The centering guide roller and the receiving roller are provided on the outer circumference with a mechanism, a sensor for detecting the approach or arrival of the plate material to operate the roller retraction mechanism, and a means for aligning the plate material with the stacking point. The centering guide roller and receiving roller have grooves for inserting the side edges of the plate material. Installed in a state of rotating horizontally, the plate material introduced in the horizontal state is inserted between the grooves of the pair of centering guide rollers to position it at the center of the conveyance path, and then the receiving rollers on the left and right of the conveyance path The both sides are supported by the groove surface and conveyed, and then the roller retracting mechanism is activated by the sensor signal, and the support of the plate material by the receiving roller is released above the plate material mounting surface whose level has been adjusted by the piler. .

In the case where the object to be processed is a flexible steel plate or the like, the gap between the grooves of the receiving rollers provided on the left and right of the conveying path is made narrower than the width of the plate material, and the pair of centering members is used. A belt conveyor that lifts the widthwise central portion of the plate material that enters the groove of the guide roller and warps the plate material upward within the limit of elastic deformation is added to the inlet side, and the plate material that has warped when entering the guide roller is The receiving roller keeps the warped state and conveys to the end point.

The interval adjusting mechanism for the centering guide rollers and the receiving rollers on the left and right of the conveying path, the belt conveyor for lifting the central portion of the plate material to bend the plate material upward, and the height adjusting mechanism for this conveyor. If it is provided, the interval between the rollers can be changed to cope with the change in the width of the plate material, and the same piling device can be used for both flexible and non-flexible plate materials, which is a more preferable device. .

It is desirable that the positioning means also has a mechanism for adjusting the position of the positioning stopper in the transport path longitudinal direction.
By adjusting the position, it is possible to respond to changes in the length of the material.

Next, the transfer device of the present invention utilizes the transfer element used in the above-described piling device of the present invention for processing a flexible plate material,
Conveyor frames are arranged parallel to the left and right of the transport path, a plurality of receiving rollers are mounted on the left and right conveyor frames aligned in the longitudinal direction of the frame, and a constant speed rotary drive mechanism for the left and right receiving rollers. Has a groove into which the side edge of the plate material is inserted, the receiving roller is arranged to rotate sideways, and the distance between the grooves of the receiving rollers on the left and right of the conveying path is made narrower than the width of the plate material to be conveyed, Insert both sides of the plate that is bent upward within the limit of elastic deformation into the grooves of the left and right receiving rollers, and support the side edges of the plate with groove surfaces to maintain the plate's warped state It is configured to carry. It is desirable that this device also has a space adjusting mechanism between the left and right receiving rollers.

[0017]

In the piling device of the present invention, the plate material is conveyed by the conveyor using the rollers, so that the conveying and the laminating can be performed by the flow work.

Further, since air, magnet, vacuum suction, etc. are not used, the plate material is heavy, non-magnetic material,
There is no restriction on the use of a slip sheet between the plate materials, and the structure and operation are as simple as the conventional "horizontal roller method", which is advantageous in terms of equipment cost, running cost, and maintenance. become.

Further, since the edge of the plate material is supported by the roller, the surface of the plate material is not scratched even if the roller slips and rotates. Further, since the plate material is dropped from directly above on the placement surface whose height is adjusted by the piler, there is no flaw due to the rubbing of the plate materials, and the quality is not deteriorated.

Further, since the flexible plate material is conveyed in an upward warped state, there is no unavoidable streak when using the horizontal roller, and the stability of conveyance is not impaired.

Also in the conveying device of the present invention, since the edge of the flexible plate material is supported by the groove surface of the roller and the conveyance is performed in the warped state, the same effect as described above can be expected in terms of preventing surface scratches. .

In the case where the plate material is simply conveyed, for example, if a belt conveyor is used, it is possible to efficiently convey the plate material and the like with a cheap facility, but the belt conveyor is generally limited in use due to space reasons. Easy to receive.

Further, when it is desired to temporarily stop only the plate material without stopping the conveying device for the purpose of adjusting the time with the next process, in the belt conveyor, the surface of the plate material is flawed due to the belt slip.

On the other hand, in the carrying device of the present invention, since the conveyors using the receiving rollers are arranged on both sides of the carrying path, it is hard to be restricted in terms of space.

Further, since the conveyance is by edge support,
Even if the rollers slip and rotate, the surface of the plate will not be scratched,
It is also possible to temporarily stop the movement of the plate material without stopping the roller rotation.

[0026]

1 to 5 show one embodiment of a piling device of the present invention.

FIG. 1 is a plan view of the apparatus, FIG. 2 is a front view, and FIG.
1 is an enlarged cross-sectional view taken along the line AA of FIG. 1, FIG. 4 is a detailed view of the conveyor on one side, and FIG.
It is an expanded sectional view which followed the CC line of FIG.

S in FIGS. 1, 3, and 5 is a plate material continuously fed from a shear line or the like. It does not matter whether the plate material S is continuously supplied or not, but here, the continuous supply in which the effect of the invention is particularly remarkable is taken as an example. FIG.
As shown in FIG. 1, in front of the piling device 1, a pair of left and right belt conveyors 2 for carrying the plate material S into the entrance of the device 1 are provided.
Is provided. Further, between the pair of belt conveyors 2 and 2, a central belt conveyor 3 which rotates at a constant speed with the conveyor 2 and lifts the central portion of the plate material S is provided so as to partially enter the entrance portion. The central belt conveyor 3 has an elevating mechanism (not shown) for height adjustment, and the conveyors 2 and 2 are provided in order to smoothly transfer the plate material from the conveyor 2.
The conveyance surface position is gradually increased from the same height position as in the above direction toward the terminal end side.

When the plate material S is a flexible plate, the center portion in the width direction is lifted by the conveyor 3, and both side portions naturally hang down due to the weight, so that the plate is warped. If the plate material S is a plate having no flexibility, the central belt conveyor 3 is made horizontal at the same height as the conveyor 2 or retracted to a position lower than the conveyor 2.

The plate material S in the warped state is provided with centering guide rollers 4 symmetrically arranged on the left and right sides of the entrance portion.
Introduced between 4 This centering guide roller 4
Has a groove (preferably a V groove) on the outer circumference, and each has a motor 5 driven synchronously, and is arranged so as to rotate sideways. Both side edges of the plate material S have the pair of rollers 4,
4 is introduced into the groove, and thereby, the plate material S in the warped state is positioned at the center of the conveying path and is sent to the roller conveyor 7 which is kept backward.

Behind the entrance, moving frames 11 arranged in parallel, a gap adjusting mechanism 12 for the frames, two sets of roller conveyors 7 arranged in series, and a plate material aligning means 16 having a stopper 15 are provided. And the roller retracting mechanism 2
4 and a piler 31 corresponding to each roller conveyor 7 (not shown in FIG. 1, see FIG. 2).

The interval adjusting mechanism 12 is used for the pair of moving frames 1.
An example has been illustrated in which the ball screw 13 screwed to the start end portion and the end portion of 1 is rotated by the motor 14 to change the distance between the frames, but it is possible to adjust the distance by moving the pair of frames 11, 11 in parallel. However, it is not limited to the illustrated one. The centering guide roller 4 is configured such that the distance between the rollers is adjusted by the cylinder 6. Further, the roller conveyor 7 and the roller pull-in mechanism 24 are supported by the pair of moving frames 11, 11, and the conveying width is changed by moving the frames so as to respond to the width change of the plate material S.

The roller conveyor 7 is constructed by arranging a frame 8 in parallel with the left and right of the conveying path, and mounting a plurality of receiving rollers 9 and a driving mechanism 10 for the rollers on the frame 8. The receiving roller 9 is, as shown in FIGS. 3 and 5,
It has a groove (V groove in the figure) on the outer circumference, and is arranged so as to rotate sideways with a slight inclination. The drive mechanism 10 includes a motor 10a mounted on the frame 8, a gear 10b (see FIGS. 3 and 5) fixed to a rotation support shaft of each receiving roller, and a gear 1b provided between the gears 10b and adjacent to each other.
0b and an idle gear 10c (see FIG. 4) meshed with the receiving roller 9 directly connected to the motor 10a.
Is sequentially transmitted, and each of the receiving rollers 9 mounted on the same frame is rotated at a constant speed. The receiving rollers 9 on the left and right of each roller conveyor are synchronized and rotated in the opposite directions.

The power transmission to each receiving roller 9 may be performed by combining a chain and a sprocket, a timing belt and a belt wheel, and the like. Further, in the roller conveyor shown in the figure, the receiving roller 9 is slightly tilted so that the plate supporting portion of the groove is adjusted upward and downward in consideration of the upward warp conveyance of the plate material (in the figure, the axis inclination is about 15 °). This is preferred, but roller tilt is not necessary.

The position aligning means 16, as shown in FIG.
A guide frame 17 is arranged below the frame 11, a slider 19 is fitted on a rail 18 integrated with the frame 17, and a pinion 21 is meshed with a rack 20 integrated with the frame 17, and the pinion 21 is connected to a motor 22. The position of the stopper 15 in the longitudinal direction of the transport path is adjusted by rotating with. The stopper 15 receives and positions the conveyed plate material S at the front. Here, as a preferable element, a correcting device 23 (shown in FIGS. 1 and 2) for adjusting the position of the edge by pushing the laminated plate materials in the conveying direction from the inlet side in the position aligning means 16 (this is also the stopper 15). It has a similar position adjusting mechanism). This correction device 2
When there is 3, even if the dropped plate material S hits the stopper 15 and bounces back, the positions of the edges can be aligned neatly.

Next, as shown in FIG. 5, the roller retracting mechanism 24 includes a bracket 26 that swings about a horizontal shaft 25 in the conveying path direction as a fulcrum, and a power transmission arm 27 connected to the upper end of the bracket 26. And a motor 28 for applying power to the other end of the arm 27, and a sensor (not shown) for detecting that the front end of the plate material S has come near the end of the conveyance. The frame 8 of the roller conveyor 7 is attached to the lower end of the bracket 26 of this mechanism, as shown.

The motor 28 is provided on the moving frame 11, and when the cam attached to the output shaft of the motor rotates, the arm 27 engaged with the cam advances and retreats sideways, whereby the aforementioned cam makes one revolution. In the meantime, the bracket 26 swings once, and the receiving roller 9 once retracts to the chain line position in FIG. 5, and then returns to the solid line position again.

Reference numeral 29 in FIG. 3 is a guide plate for guiding the side edge of the plate S that is falling, and has an adjusting mechanism 30 for finely adjusting the position. This guide plate 29 also contributes to the stabilization of stacking and is a preferable element.

As the pillar 31, a well-known table lifter provided with a roller 33 for laterally feeding the pallet 32 shown in FIG. 3 was adopted. The piler gradually descends as the plate materials are stacked on the pallet 32, and keeps the mounting surface height of the plate materials S to be stacked next within a predetermined level range.

In the exemplary piling device configured as described above, when the plate material S to be processed is a flexible plate, the central portion of the plate is lifted by the central conveyor 3 and both side portions are hung down by weight and elastic. The plate is warped within the limits of deformation. Then, in this posture, both side edges enter the groove of the centering guide roller 4, the plate material S is guided to the center of the conveying path, and is fed between the receiving rollers 9 of the roller conveyor 7 while being warped.

The state after the feeding is shown in FIG. Like the guide roller 4, the receiving rollers 9 on the left and right of the conveyance path set the inter-groove distance W to be narrower than the width of the plate material S. Therefore, the plate material S remains in the warped state and rotates. Is transported to the stacking point. When the leading edge of the plate material S comes close to the end point of conveyance, the sensor detects this, and the signal from the sensor 28 operates the motor 28 to swing the bracket 26, and the support by the receiving roller 9 is released to adjust the height of the plate material S. It almost falls on the existing mounting surface. At this time, the receiving roller 9 continues to rotate, and thus the falling plate material tries to flow slightly forward even after the support is released by the roller 9 due to the inertia of the conveyance, but the designed height of the stopper 15 is appropriately determined. If you leave it (the height of the stopper after setting is fixed), it hits this stopper and falls from there, so unlike the "sliding method", there is no scratch on the plate material.

The stopper 15 may be set to a height so as to block the conveying path of the plate material S, the plate material hits the stopper at the end of the conveyance, and the sensor works upon contact with the stopper to operate the roller retraction mechanism 24. As described above, if the roller retracting mechanism is actuated a little early in anticipation of the plate material S moving due to inertia, it is possible to temporarily avoid slip rotation of the margin receiving roller, which is preferable in terms of quality maintenance. .

In this way, after a certain amount of plate materials are stacked on the pallet on the piler 31, the stacked plate materials are taken out together with the pallet and a new pallet is set to prepare for the next stacking.

In the illustrated piling device, two sets of roller conveyors 7 are used for one piler 31, but two sets of roller conveyors may be provided in series as long as the power transmission is not hindered. . Further, the roller conveyor 7 is extended to arrange, for example, two pillars 31 vertically, and when the stacking for one pillar is completed, the stacking destination is switched to the other piler, and the stacking is completed first during the stacking operation for the piler. It is also free to take out the plate and prepare it for the next lamination.

Further, if the width of the plate material to be conveyed is constant, the gap adjusting mechanism 12 between the guide roller 4 and the receiving roller 9
Is unnecessary.

The receiving rollers 9 may be retracted by moving the left and right roller conveyors 7 horizontally and horizontally.

In addition, the roller retracting mechanism 24 and the position aligning means 16 are not necessary for a device that simply conveys a flexible plate material in a warped state. The interval adjusting mechanism 12 for the conveyors 2 and 3, the centering guide roller 4, and the receiving roller may be provided as necessary, and warp conveyance is possible without this.

Although the one-pillar type is illustrated in FIG. 1, when a plurality of pillars are installed in series, the aligning means 16, the stopper 15, the correction device 23, the other conveyor frame 7, and the roller driving mechanism 10 are used as the pillar. It is also possible to increase the number by adding.

[Example] Using the piling device illustrated in FIGS. 1 to 5, the plate materials shown in Table 1 were warped and conveyed at the speeds shown in the table, and laminated on the piler. For comparison, the "horizontal roller type" conveying device of FIG. 7 was also used for conveyance. The warp amount H shown in FIG.
Table 1 also shows the amount of warp H ₁ of the horizontal roller method.

As a result of this experiment, in the apparatus of the present invention, the plate materials could be stably conveyed without being scratched, and the stacking could be carried out continuously and orderly without generating scratches and scratches. On the other hand, in the apparatus shown in FIG. 7, due to the warp, the roller edge hits the surface of the plate material, causing streaks. Further, the amount of warp became too large and the conveyance itself did not go well, so it was not used as a piling device at all.

[0051]

[Table 1]

[0052]

As described above, according to the piling device of the present invention, the edges of the plate material are supported, and the flexible plate material is conveyed in the upward warped state, and the plate material is dropped almost right above the piler. Since they are piled up, the surface of the plate material will not be flawed, and there will be no restrictions on use depending on the type of plate material.

Further, the conveyance and the lamination can be carried out reliably and efficiently, and the reliability and the processing capacity of the apparatus are enhanced.

Further, since the conveying means is a kind of roller conveyor, the apparatus is not complicated and it is advantageous in terms of equipment cost, running cost and maintenance.

Since the conveying apparatus according to the present invention also performs upward warp conveyance, it can be expected to have an effect equal to or higher than that of a belt conveyor in terms of preventing flaws on the plate material and efficiently conveying the material. It is difficult to be restricted by equipment in terms of space, and even if the receiving roller is slip-rotated to temporarily stop the flow of plate material, the surface that is important for quality does not get scratched. Is also advantageous.

[Brief description of the drawings]

FIG. 1 is a plan view of a piling device according to an embodiment.

FIG. 2 is a front view of the above device.

FIG. 3 is an enlarged sectional view taken along the line AA of FIG.

FIG. 4 is a view in the direction of arrows in FIG. 2B-B.

5 is an enlarged cross-sectional view taken along the line CC of FIG.

FIG. 6 is a conceptual diagram of upward warp conveyance.

FIG. 7 is a conceptual diagram of a horizontal roller type transport device.

[Explanation of symbols]

 S plate material 1 piling device 2 belt conveyor 3 central belt conveyor 4 centering guide roller 5 drive motor 6 guide roller gap adjusting cylinder 7 roller conveyor 8 conveyor frame 9 receiving roller 10 roller drive mechanism 10a motor 10b gear 10c idle gear 11 moving frame 12 Interval Adjustment Mechanism 15 Stopper 16 Alignment Means 23 Correction Device 24 Roller Retracting Mechanism 25 Horizontal Axis 26 Bracket 27 Arm 28 Motor 31 Pyler 32 Pallet

Claims (3)

[Claims] 1. A piling device for transporting fixed-size plate materials sequentially sent from the preceding step in one direction, and stacking them on a piler at the end of the transport, for a pair of centering provided on the left and right of the inlet part. Constant velocity of guide rollers, conveyor frames arranged parallel to the left and right of the conveying path leading to the entrance, a plurality of receiving rollers that are attached to the left and right conveyor frames aligned in the longitudinal direction of the frame, and receiving rollers provided on the left and right conveyor frames, respectively. Rotational drive mechanism, roller retracting mechanism that separates the left and right conveyor frames from each other to retract the receiving roller from the transport point, sensor and plate material that detects when the plate material approaches or reaches the transport end point and operates the roller retracting mechanism Is aligned with the stacking point, and the centering guide roller and the receiving roller are Has a groove for inserting the side edge of the plate material, and installs the centering guide roller and the receiving roller in a state of rotating horizontally, and the plate material introduced in the horizontal state enters between the grooves of the pair of centering guide rollers. Then, the left and right receiving rollers of the conveyance path convey the plate material while supporting both side edges of the plate material with the groove surfaces, and then the roller retracting mechanism is activated by the sensor signal and the level is adjusted by the piler. A plate material piling device configured to release the support of the plate material by the receiving roller above the plate material mounting surface. 2. The plate material is formed by narrowing the gap between the grooves of the receiving rollers provided on the left and right of the conveying path to be narrower than the width of the plate material, and further by lifting the center portion in the width direction of the plate material that enters between the grooves of the pair of centering guide rollers. 2. A belt conveyor for bending upwardly within the limit of elastic deformation is added to the entrance side, and a flexible plate material such as a steel plate is conveyed to the end point while maintaining the upward warped state by the receiving roller. Plate material piling device described. 3. A conveyor device for a flexible plate material such as a steel plate, wherein the conveyor frame is arranged parallel to the left and right of the conveyor path, and a plurality of receiving rollers are mounted on the left and right conveyor frames in alignment with the longitudinal direction of the frame. , A constant-velocity rotation driving mechanism for the left and right receiving rollers, the receiving roller having a groove for inserting the side edge of the plate material on the outer periphery, and the receiving roller is arranged in a state of laterally rotating, and the left and right conveyance paths are arranged. The gap between the grooves of the receiving rollers of the sheet is narrower than the width of the plate material to be conveyed, and both sides of the plate that is bent upward within the limit of elastic deformation are inserted into the grooves of the receiving rollers on the left and right of the conveyance path. A plate material conveying device, characterized in that the edges are supported by groove surfaces and the plate is warped while being conveyed by the receiving rollers.