JPH10297763A - Formed steel plate stacking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the possibility of damaging a formed steel plate at an end part caused by getting in contact with a stopper, prevent position deflection caused by friction in releasing support of the formed steel plate, and reduce position deflection or noise caused by fall at the time of stacking. SOLUTION: A gear 17 is installed on each of vertical shafts 6 provided in lines on the right and left to face each other, the gears 17 of a specified number of vertical shafts 6 on the front side are engaged with right and left racks 16a, 16a driven forward by a cylinder device 9a, and the gears 17 of the other vertical shafts 6 on the back side are engaged with right and left racks 16b, 16b driven backward by a cylinder device 9b. Rollers 8 supported on one side of the vertical shafts 6 and disposed in lines to be right-left symmetric are rotated in opposite directions from each other on the right and the left sides, and they are rotated in opposite directions from each other on the front side and back side of the lines.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for stacking formed steel sheets such as roofing materials.

[0002]

2. Description of the Related Art Formed steel sheets such as corrugated steel sheets used as roofing materials are sequentially stacked at the exit of a forming machine.
When the number reaches a certain number, it is moved to an appropriate position using a crane or a lift. For this reason, a stacking device for formed steel sheets is provided at the outlet of the forming machine.

In a conventional stacking apparatus of this type, a plurality of arms are provided symmetrically in the feeding direction corresponding to the height of the outlet of the forming machine, and the formed steel sheet sent from the forming machine is temporarily processed. In some cases, each arm is supported by an arm, and when the feeding is completed, each arm is simultaneously rotated downward to drop the supported formed steel sheet, thereby sequentially stacking the steel sheet under the steel sheet.

However, this stacking device drops and stacks the formed steel sheets, so that the noise at the time of dropping is large, and since the formed steel sheets fall in parallel, the air between the formed steel sheets and the lower formed steel sheet is reduced. However, there is a problem in that the formed steel sheet is difficult to escape, and the falling formed steel sheet is displaced and moved on the air, so that the steel sheet is not stacked neatly. In order to improve this point, a height adjustable lifter is arranged below, and the formed steel plate is dropped on this to make the head small and constant, but in this case, the lifter is also used. At least a space on the supported formed steel plate for rotating the arm downward must be ensured, and there is a limit in improving the above-mentioned problems. In addition, if the arm is rotated in the horizontal direction, the head can be further reduced, but this time, due to the sliding resistance at the time of rotation of the arm, the formed steel sheet is displaced when it falls. Occurred.

Therefore, in order to improve this point, those disclosed in Japanese Utility Model Laid-Open No. 62-20044 and Japanese Patent No. 2527299 have been developed.

What is disclosed in Japanese Utility Model Application Laid-Open No. 62-20044 is an apparatus for collecting short plates in a shear line.
As shown in FIG.
Are arranged in the feed direction of the short plate 25, and the support shafts 21 of the respective rollers 20 arranged in the vertical direction are connected to the drive shaft 23 via bevel gears 22, respectively. In this stacking device, the short plate 25 supported by the roller 20 is dropped by rotating the roller 20 synchronously in the horizontal direction. In the figure, reference numeral 2
Reference numeral 4 denotes a stopper provided on the distal end side of the stacking device and in contact with the distal end of the short plate 25 to restrict the movement thereof.

[0007] The stacking device of Japanese Patent No. 2527299 is
As shown in FIG. 6, a pair of right and left columns 32 standing on a base 31 has a support arm 33 and a support arm 33, respectively.
Air cylinder 34 which is an actuator for operating
An upwardly-facing substantially U-shaped support guide device 30 provided with
Plural, with a predetermined interval, arranged in front of the outlet of the molding machine,
A stopper 35 is provided on the tip side. This stacking device includes a support arm 33 supporting a formed steel plate 36.
Are operated with a time lag in order from the one closest to or farther from the forming machine, and the formed steel plate 36 is inclined and dropped, thereby facilitating escape of air between the formed steel plate and a lower formed steel plate (not shown). In this case, the formed steel plate 36 is less likely to be displaced when dropped. The stopper 35 is
It is in contact with the tip of the formed steel plate 36 that falls while being inclined, and acts to align the ends.

[0008]

In the above-mentioned conventional stacking apparatus, the arm which firstly rotates the arm downwards generates a large noise when the steel sheet is dropped due to a large drop of the formed steel plate at the time of stacking. There has been a problem that the stacked formed steel sheets also become irregular.

In the apparatus shown in FIG. 5, the short plate is supported by a roller, and the short plate is dropped by rotating the roller in the lateral direction. Is improved, but when the short plate is dropped, the left and right rollers are rotated in the same direction in synchronization with each other, so that a force in the direction of moving the short plate acts on the short plate. A stopper must be provided in order to prevent the displacement due to this, and there is a problem that the cost is increased. Furthermore, in this device, the tip of the short plate is brought into contact with the stopper so as not to move any further. Therefore, when the short plate comes into contact with the stopper, the tip may be damaged. Was.

FIG. 6 shows a structure in which a formed steel plate is inclined and dropped to prevent the formed steel plate from being displaced during stacking. Is positioned by bringing one end of the steel plate into contact with the stopper, and the end of the formed steel plate may be damaged. In addition, a separate drive (air cylinder) is required for each support arm to operate the plurality of support arms with a time lag, and a control device for operating each drive in cooperation with each other is also required. There has been a problem in that the stacking apparatus itself becomes complicated and the cost of the stacking apparatus itself also increases.

Further, the apparatus shown in FIG. 5 has a problem that it cannot cope with a change in the length of the object (short plate) because the stopper is integrally provided at the tip of the apparatus. Has a problem that it is difficult to take out the formed steel sheets stacked between the right and left columns.

An object of the present invention is to solve the problems of the conventional stacking device.

[0013]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a method of forming a formed steel sheet fed from a forming machine by a plurality of rollers arranged symmetrically and in rows at the same height of a frame. Receiving, by rotating each roller in the horizontal direction in synchronization, the supported formed steel plate is dropped, and in a formed steel plate stacking device that is sequentially stacked,
The above rollers have different rotation directions in the left and right, and different rotation directions in the row direction are mixed on average, so that the lateral force acting on the formed steel plate when the rollers rotate is canceled out. did.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIG. 1 is a front view of an apparatus for stacking formed steel sheets according to the present invention, and FIG. 2 is a right side view thereof. As shown in the figure, this stacking device has a substantially U-shaped frame 1 which is held by a support portion 2b on one side and which is long in the front-rear direction (left-right direction in FIG. 2), And a drive mechanism for horizontally rotating the rollers 8 in synchronization with each other.

The frame 1 has a vertical member 2 having a support portion 2b erected on one side of a base portion 2a, and a downwardly substantially U-shaped carry-in portion 2c formed continuously above the support portion 2b. It comprises horizontal members 3, 4 in which the members 2 are connected to each other in the horizontal direction at the top and bottom thereof, and a pair of elongated left and right support plates 5 forming the lower end of the loading portion 2c in the front-rear direction (left-right direction in FIG. 2). The base 2a is provided only on the vertical members 2 arranged at both ends, and the vertical member 2 provided between the base 2a and the lower end of the support portion 2b is directly connected to the horizontal member 4.
It is fixed. A vertical axis 6 is set at a position facing the left and right (left and right in FIG. 1) of the loading section 2c, respectively.
They are provided in a row in the front-back (left-right in FIG. 2) direction. The lower end of the vertical axis 6 is held by a thrust bearing 7 attached to the support plate 5, and the upper part penetrates a bearing (not shown) attached to a corresponding portion of the horizontal member 3 by appropriate means. Project upward.

The rollers 8 are rotatably supported by the left and right longitudinal axes 6 in a cantilever manner, and are provided so as to protrude inward so as to face each other in the carry-in section 2c.

The driving mechanism is a cylinder device 9 shown in FIG.
a (9b), left and right racks 16a, 16a (16b) connected to the piston rod 90a (90b) of the cylinder device 9a (9b) via connecting members 10a (10b).
b, 16b) and a gear 17 attached to the tip of the longitudinal axis 6 and engaged with the racks 16a, 16a (16b, 16b). Here, the front side (FIG. 3)
The lower cylinder device 9a is connected to almost half of the longitudinal axis 6 on the front side via the drive mechanism, and the rear (upper in FIG. 3) cylinder device 9b is similarly connected to the remaining rear device. Are connected to almost half of the vertical axis 6.
FIG. 3 shows a state in which the upper surface of the drive mechanism is opened to show the drive mechanism.
7 and the upper portions of the racks 16a and 16b are covered with a cover 11.

The apparatus for stacking formed steel sheets of the present invention having the above-mentioned structure is provided in front of the outlet of the forming machine A as shown in FIG.
It is installed over the feeding direction of the formed steel sheet.

As shown in FIG. 4, a rail 12 is laid on the floor F on which the stacking device is installed, in a direction perpendicular to the stacking device. 13a, a lifter 13 that drives up and down
Are provided movably.

Next, the operation of the stacked steel sheet stacking apparatus of the present invention having the above-described structure will be described.

First, in use, the lifter 13 is previously arranged at a predetermined position below the stacking device as shown in FIG. 3, and the table 13a is moved to the raised position, which is the use start position, to prepare for it. When the forming machine A is operated in this state, the formed steel sheet formed into a predetermined shape by the forming machine A is extruded from the outlet of the forming machine A to the stacking device side.
At this time, the left and right rollers 8, 8 of the stacking device project inward from each other, and the extruded formed steel sheet is
It is guided by moving on the rollers 8,8.

When the completion of the extrusion is detected by a sensor (not shown), the cylinder devices 9a and 9b are operated and the roller 8 is rotated in the horizontal direction to drop the supported formed steel plate. However, at this time, in the forming steel sheet stacking device of the present invention, the rack 16a connected to the front cylinder device 9a and the rack 16b connected to the rear cylinder device 9b are driven in different directions. Has become. Therefore, of the longitudinal axes 6 arranged in a row, almost half of the longitudinal axes 6 on the front side (lower side in FIG. 3) rotate in the same direction, and almost half of the longitudinal axes 6 on the rear side (upper side in FIG. 3). Rotate in the opposite direction. At this time, the left and right vertical axes 6 and 6 correspond to the racks 16a and 16a (or 1) driven in the same direction on the side where the respective gears 17 and 17 face each other.
6b, 16b), they are rotated in opposite directions.

As described above, in the apparatus for stacking formed steel sheets according to the present invention, the right and left rollers 8 and 8 rotate in opposite directions as shown by arrows in FIG. , The frictional force generated between the formed steel plate and the formed steel plate cancel each other, so that no lateral force acts on the formed steel plate. Therefore, the formed steel plate falls just below the horizontal state without moving.

In this way, the formed steel sheet supported by the plurality of rollers 8, 8,... Is stacked neatly on the table 13a of the lifter 13 located immediately below the table without any positional displacement.

When the drop of the formed steel sheet is completed, the piston rods 90a and 90b of the cylinder devices 9a and 9b are retracted, and the roller 8 is returned to its original state by the operation completely opposite to the above to prepare for the next extrusion of the formed steel sheet. . At the same time, the lifter 13 descends by the thickness of the supported formed steel sheet to prepare for the next drop of the formed steel sheet.

The formed steel sheets extruded from the forming machine A in this manner are sequentially stacked on the table 13a at a fixed small head by the action of the lifter 13. Then, when this stacking reaches a certain number, once the feeding from the forming machine A is stopped, the stacked formed steel sheets must be moved to other places, but in the formed steel sheet stacking apparatus of the present invention, Since the frame 1 is held by the support portion 2b on one side and the rail 12 for guiding the lifter 13 is laid on the other side, the lifter 13 can be easily stacked by moving the lifter 13 along the rail 12. The formed steel sheet can be drawn out to the side of the stacking device. Therefore, the formed steel plate is removed from the lifter 13 using a forklift, a crane, or the like,
The next work is promptly prepared.

In the above description, an example is shown in which the plurality of vertical axes 6 on the front side are rotated in the same direction and the plurality of vertical axes 6 on the rear side are rotated in the other direction. The stacked steel sheet stacking device may be configured such that rollers 8 having different rotation directions in the row direction are mixed on average so that forces acting on the formed steel sheet when rotating the rollers 8 cancel each other out. The odd-numbered and even-numbered vertical axes 6 arranged in a row may be rotated in opposite directions, or the rotation direction may be reversed every predetermined number.

In the above description, the cylinder devices 9a, 9
Although the example in which the vertical axis 6 is rotated using the b and the racks 16a and 16b has been described, the drive mechanism may be any mechanism that can rotate the vertical axis 6 to which the roller 8 is attached.
For example, the rotation of a shaft driven by a motor may be transmitted to the vertical axis 8 using a bevel gear or the like.

In the stacked steel sheet stacking apparatus of the present invention, when handling a long formed steel sheet, the same stacking apparatus is continuously installed and used as shown by a two-dot chain line in FIG. Is also possible.

[0031]

As described above, according to the present invention, a plurality of rollers supporting a formed steel plate are rotated in directions in which their frictional forces cancel each other, and the support is removed. The formed steel sheet falls directly below it in a horizontal state without displacement, and is stacked neatly. Moreover, at this time, since the roller rotates in the horizontal direction,
The head of the formed steel sheet can be reduced, and the noise at that time is also reduced. Further, since the stopper is not used, there is no danger that the end of the formed steel sheet is damaged, and there is an effect that the length of the formed steel sheet can be easily changed.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is a plan view of the stacking device shown in FIG. 1 with a cover removed.

FIG. 4 is a perspective view of a main part showing another embodiment of the present invention.

FIG. 5 is a plan view of a conventional example.

FIG. 6 is a perspective view of another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Vertical member 2a Base 2b Support part 2c Carry-in part 3,4 Horizontal member 5 Support plate 6 Vertical axis 7 Thrust bearing 8 Roller 9a, 9b Cylinder device 90a, 90b Piston rod 10a, 10b Connecting member 11 Cover 12 Rail 13 Lifter 13a table 16a, 16b rack 17 gears

Claims (1)

[Claims] 1. By receiving a formed steel sheet sent from a forming machine by a plurality of rollers arranged symmetrically and in a row at the same height position of a frame, and synchronously rotating each roller in a horizontal direction, In a stacking device for formed steel plates, in which the supported formed steel plates are dropped and stacked sequentially, the rollers have different rotation directions in the left and right, and those having different rotation directions in the row direction are mixed on average, An apparatus for stacking formed steel sheets, wherein lateral forces acting on the formed steel sheets when the rollers rotate are canceled out.