JP2004330396A - Aligning device of plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an aligning device of a plate which surely performs an aligning for the plate of any material in a short time without depending on the skill of a worker. <P>SOLUTION: This aligning device 20 is arranged on an upstream side of a cutting means 40 for cutting the plate A in a length direction to fix the width direction position of the plate A. The device 20 is provided with a plurality of side stoppers 21 each of which has an independent moving means 22 and has an arbitrarily set plate width direction position at intervals in a length direction, and an extruding member 23 as a means for pushing a width direction end part of the plate A on the side stoppers 21 by realizing a relative movement of the width direction between the plate A and the side stoppers 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The invention according to the claim is arranged on a shear line or the like of a plate material including a steel plate, and has an operation of determining a width direction position of the plate material before cutting the plate material in a length direction by a slitter or the like. The present invention relates to an aligning device.
[0002]
[Prior art]
The steel sheet manufactured through the rolling process needs to remove the edges (so-called ears) on both sides or divide the steel sheet into a predetermined width in order to obtain a product having the required dimensions. Such cutting of the steel sheet in the length direction is generally performed while feeding the steel sheet in the length direction toward a shearing device or the like. In the case of a thick steel plate, an aligning operation is performed before sending the steel sheet to the shearing device or the like. And the position in the width direction of the steel sheet must be properly determined.
[0003]
Conventionally, the above-described aligning operation has been performed by an operator who uses a light mark by a light line marker such as a laser beam or a mercury lamp as a guide. An optical mark by a light line marker displays a shear line on the upper surface of the steel plate, and an operator operates the steel plate to determine its position so that the shear line becomes an appropriate position in the steel plate. However, the shape of the steel sheet before cutting is not exactly rectangular, but is accompanied by a bend called camber and the like, so that such work requires skill. That is, in the conventional method, the precision of the aligning and the required time for the work differ depending on the skill of the worker, and in some cases, the production efficiency is reduced and the product is poorly sheared.
[0004]
On the other hand, Patent Literature 1 below proposes a method for automating an aligning operation to solve the above-described inconvenience. That is, while detecting the position of the steel sheet side end (edge) with a CCD sensor or the like, the aligning work of the steel sheet is performed using a plurality of magnet shifters arranged in the length direction of the steel sheet (front end side and tail end side). It is to do.
[Patent Document 1] Japanese Patent No. 3359487
[0005]
[Problems to be solved by the invention]
The technique described in Patent Document 1 enables alignment without relying on the skill of a worker, but still leaves room for improvement. That is, for example, a plate made of a non-ferrous metal such as austenitic stainless steel, aluminum, or copper cannot be used, and it takes a considerable time to complete the alignment. The reason why a plate of stainless steel or non-ferrous metal cannot be aligned is that a magnetic shifter does not work on such a plate that is a non-magnetic material. In addition, it takes time because each magnet shifter needs to rotate the steel sheet based on the difference in the amount of movement while adsorbing the steel sheet through a certain area. In other words, a positional shift occurs in the plate material due to a difference between the respective operation timings on the leading end side and the tail end side of the plate material. Therefore, the alignment is completed only after several retries are performed to eliminate the displacement.
[0006]
The invention according to the claims has been made in consideration of the above points, and has an advantage that in addition to not relying on the skill of the worker, the aligning can be performed on the plate material other than the steel plate reliably in a short time. Provided is an aligning device for a sheet material having the same.
[0007]
[Means for Solving the Problems]
An aligning device for a plate material according to claim 1, which is arranged on an upstream side of a cutting means for cutting the plate material in a length direction, and is an aligning device for determining a position in a width direction of the plate material,
a) A plurality of side stoppers each having independent moving means and having a position in the width direction arbitrarily set are provided at intervals in the length direction,
b) Means are provided for pressing the widthwise end (edge) of the plate to the side stopper by realizing relative movement in the width direction between the plate and the side stopper.
It is characterized by the following.
In addition, the above-mentioned "plate material" refers to various plate-like materials including those made of steel or non-ferrous metal. Further, the "cutting means" includes, for example, a side shear for cutting the vicinity of a side edge of the plate material (a so-called ear portion), a slitter for dividing the plate material into a predetermined width, and the like. The “length direction” and the “width direction” refer to a direction along the length of the plate material (that is, a transport direction) and a direction along the width of the plate material, respectively, unless otherwise specified.
[0008]
According to such an aligning apparatus, the aligning operation of the plate material performed prior to the cutting in the length direction can be appropriately performed in a short time. If each of the side stoppers provided as in the above a) is set at an appropriate position in the width direction and the end in the width direction of the plate is pressed against such a side stopper by the means of b), the aforementioned Patent Document 1 This is because the alignment of the plate material is completed by moving the plate material only once without repeating the retry as described in (1). One operation is sufficient in this way because, when the side stoppers in a) are set at appropriate positions, they and the means in b) uniquely determine the position in the width direction of the plate material. This is because there is no inconvenience that the plate material is displaced due to a difference in operation timing between the front end side and the tail end side as in the above-described example using a plurality of magnet shifters. Since the position of each side stopper is determined at an appropriate position in the width direction by independent moving means, even when a bend such as a camber is included in the plate, the position of the plate is uniquely determined and an appropriate Alignment is possible.
[0009]
Further, this aligning apparatus does not perform the aligning using the magnetism of the plate material unlike the magnet shifter. Therefore, according to this apparatus, smooth alignment is performed not only on a magnetic plate such as carbon steel, but also on a plate material (having no magnetism) such as non-ferrous metal such as austenitic stainless steel or aluminum or copper. be able to.
[0010]
The aligning device according to claim 2 is further characterized by the following c) and d).
c) providing a means for recognizing the planar shape (that is, the shape of the periphery) of the plate material and a means for detecting the leading end position of the plate material (that is, the position of the leading end in the transport direction for the stopped plate material);
d) Calculation control means for performing the following (1) to (3) is provided. That is, (1) the optimum cutting line of the plate material is determined based on the planar shape of the plate material recognized by the planar shape recognition means, and (2) the optimal cutting line of the plate material is determined based on the distal end position of the plate material detected by the distal end position detecting means. Next, the position in the width direction of each side stopper for making the optimum cutting line coincide with the passing line to the cutting means is determined, and (3) the means for moving each side stopper is controlled in accordance with the set position.
The means for detecting the tip position referred to in c) may be a stopper-like means for specifying the tip position by always stopping the plate at a fixed position.
[0011]
According to such an aligning device, the position in the width direction of each side stopper can be automatically set to an appropriate position. When the recognizing means shown in c) recognizes the planar shape of the plate material, and when the detecting means in c) detects the leading end position of the plate material in the stopped state, the arithmetic control means shown in d) sets the respective positions as follows. This is because the position of the side stopper is determined.
[0012]
{Circle around (1)} Based on the data relating to the planar shape of the plate material recognized by the recognition means, the computer determines the optimum cutting line of the plate material. As the data relating to the planar shape, in addition to the dimensions of the width and length of the plate, the camber of the plate is recognized and taken in. Then, by applying information such as dimensions of required products, which have been separately input, to the data, it is possible to set which part of the plate material to take which product, and to determine the position of the optimal cutting line on the surface of the plate material. decide. The determined position is stored in the memory portion of the computer together with the planar shape data of the plate material.
[0013]
{Circle around (2)} Based on the tip position of the plate material detected by the detection means, the computer determines the widthwise set position of each side stopper. Once the leading end position of the plate is specified, the data on the position of each side stopper (the position along the length direction, ie, along the transport direction) input in advance, and the data on the planar shape of the plate obtained above are used to determine each position. It is possible to obtain the optimum width direction setting position of the side stopper. The optimum width direction setting position of each side stopper is a width direction for matching the above-mentioned optimum cutting line with a passing line to the cutting means (that is, a line sent to the cutting position by the cutting means when being conveyed). Is the position of each side stopper in FIG.
[0014]
(3) The moving means of each side stopper is controlled such that the width direction position of each side stopper matches each set position determined in (2) above. Thus, the position in the width direction of each side stopper is automatically and appropriately determined without an operator or the like operating or controlling the side stopper.
[0015]
The aligning device according to claim 3 is preferably arranged as a means for b) for pressing the width direction end of the plate material to the side stopper,
-With respect to the plate material (that is, sandwiching the plate material), an extruding member that moves in the width direction and pushes the plate material is provided on the side opposite to the side stopper.
[0016]
In such an aligning device, the pushing member pushes and moves the plate material by moving in the width direction, and presses the width direction end of the plate material against the side stopper. If the extrusion member is used in this manner, the movement of the plate in the width direction (that is, the relative movement between the plate and the side stopper) is reliably performed, and the positioning of the plate by the side stopper (that is, the alignment) is particularly performed. Accurately implemented in a short time.
[0017]
The aligning device according to claim 4 is preferably used as the means b) for pressing the width direction end of the plate material to the side stopper,
A plate member is placed on the plate material conveyance path, and an elevating member that can be inclined so that the side opposite to the side stopper with respect to the plate member is located upward is provided.
[0018]
In such an aligning device, by inclining the elevating member as described above, the plate material can be moved in the width direction by the action of gravity and pressed against the side stopper, thereby aligning the plate material.
[0019]
As described above, the aligning device provided with the elevating member can be configured at a relatively low cost. One of the reasons is that many of the conventional aligning devices are provided with an idle beam having a configuration common to that of the elevating member (for example, the description is given in Patent Document 1). . These idle beams are provided with rollers and rollers for transporting in the width direction on the upper surface, and are positioned horizontally on the transport path in the length direction for the smooth transport of the plate material in the width direction, while the idle beams in the length direction are provided. It is of an elevating type that retreats below the transport path when the transport is performed. If such an idle beam is made to be capable of being tilted and displaced so that the side opposite to the side stopper is directed upward by adding a part of the configuration, the elevating member can be relatively easily configured. In addition, regarding the fact that this aligning device can be manufactured at a low cost, the arrangement of the elevating member as described above eliminates the necessity of disposing the extruding member that moves in the width direction and pushes the plate material as described above. There is also.
[0020]
The aligning device according to claim 5, as the means of b) for pressing the width direction end of the plate material to the side stopper, in particular,
The center line position (center position in the width direction) of the cutting means is set to the center line position (also the center position in the width direction) of the transport path on the upstream side (that is, on the upstream side of the cutting means and the aligning device). On the other hand, offset (position shift) on the side opposite to the side with the side stopper,
The moving means of each side stopper is provided with an ability to move the side stopper by a distance equal to or more than the offset amount.
[0021]
In such an aligning device, the widthwise end of the plate is pressed against the side stopper by moving the side stopper, not the plate, in the width direction. In other words, the moving means of each side stopper moves each side stopper in the width direction by a distance close to the above-mentioned offset amount, and then moves each side stopper to the optimum position (the width for matching the optimum cutting line to the passing line to the cutting means). Direction setting position). The side stopper is pressed against the width direction end of the plate material during its movement, and maintains the state of contact with the plate material during position setting, thereby determining the width direction position of the plate material.
[0022]
The aligning device according to claim 6, as the means of b) for pressing the width direction end of the plate material to the side stopper, in particular,
・ Move the plate material once in the width direction near the side stopper and press it against the primary stopper.After that, move the side stopper toward the plate material by passing the position of the primary stopper, and press it against the end in the width direction of the plate material. A feature is provided in which a mechanism for moving to a set position and stopping is provided.
[0023]
In the aligning device of claim 6, similarly to the device of claim 5, the widthwise end of the plate is pressed against the side stopper by moving the side stopper, not the plate, in the width direction. Before moving in the direction, the plate material is moved and its width direction end is pressed against the primary stopper. This eliminates the need for the offset arrangement as in the device of the fifth aspect, and also allows the side stopper to bear the initial pressing load for stopping the moving plate material. For example, when the aligning is performed by using the inclination of the elevating member as in the apparatus of claim 4, when the weight of the plate is several tens tons, the impact load when stopping the movement of the plate according to the inclination is considerable. Tend to be large. If such a load is assigned to the primary stopper that can be fixed and arranged so that it does not act on the side stopper, it is possible to use the side stopper having moving means etc. for a long time without causing failure become.
[0024]
In any of the devices according to claims 5 and 6, the side stopper does not need to withstand the pressing force of the pushing member as described above, and receives a force from the plate material descending according to the inclination of the lifting member. There is no mechanical load. Therefore, it is not difficult to simplify the configuration.
In the apparatus according to claim 5 or 6, in order to align the plate material in a short time without retry, a plurality of side stoppers pressed against the width direction end of the plate material are simultaneously moved relative to each other. It should be moved to the optimal setting position in the width direction so that the positional relationship does not change. It is also important to move the side stopper at an appropriate speed on an appropriate table (for example, a table on which an appropriate braking force is applied, or a table with an appropriate upward slope) so that the plate member is also stopped when the movement of the side stopper is stopped. It is.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of the present invention is shown in FIGS. FIG. 1 is a plan view showing the aligning device 20 for the plate material A and the arrangement of the devices before and after the aligning device 20. FIGS. 2A and 2B are conceptual diagrams showing the aligning operation of the plate material A by the aligning device 20. It is. The example in the figure shows a line for processing a hot-rolled thick steel plate (having a thickness of about 4.5 to 50 mm) as a plate material A.
[0026]
In FIG. 1, reference numeral 1 denotes a transfer table (conveyance path) continuing from a rolling line on the left side of the drawing, reference numeral 2 denotes a transfer used as a cooling floor, and reference numeral 3 denotes a transfer table (conveyance) leading to a shearing line on the left side of the drawing. Route). The sheet material A manufactured by hot rolling passes through the transfer table 1 and the transfer 2 and is then sent to the transfer table 3 that reaches the shearing line. The plate material A is cut into a length and a width while being sent on the transport table 3 to be a product having required dimensions. The illustrated conveying table 3 is provided with means (a crop shear, not shown) for shearing the front and rear ends (crops) of the plate material A, and for cutting off both edges (ears) on both sides in the width direction from the plate material A after the crop cutting. A double side shear 40 and the like are arranged. The double side shear 40 has two shears 41 and 42 arranged side by side so as to cut both side edges of the plate material A. One shearer 41 is fixed at a fixed position, and the other is fixed. The shearing machine 42 is used after being moved in the width direction of the sheet according to the required dimensions of the product.
[0027]
A plane shape recognition means 10 for recognizing the shape of the peripheral edge of the plate material A is arranged at a portion of the shearing line along the transport table 3. While the plate material A is conveyed in the longitudinal direction and passes through the means 10, the shape of the peripheral edge of the plate material A is detected and stored as plane shape data including the length / width dimensions and the state of the bend (camber). Things. The means 10 is configured, for example, as a sensor for sequentially grasping the feed amount of the plate material A, a one-dimensional optical sensor for detecting the position of the edge at each position in association with the feed amount, Further, there is provided an arithmetic unit for editing plane shape data and the like based on detection signals from these sensors. In the shearing line, the cutting position by the above-described crop shear is determined based on the planar shape data thus obtained, or the cutting position of both side edges by the double side shear is determined as described later. In addition, since it is necessary to perform cutting or starting at an appropriate position, a detecting means for temporarily stopping the plate material A and grasping the leading end position thereof is provided in front of the crop shear or the double side shear (see FIG. 2 shows only the tip position detecting means 30 immediately before the double side shear 40).
[0028]
An aligning device 20 that adjusts the width direction position and posture (angle with respect to the conveyance direction) of the plate material A and determines the cutting position by the shear 40 is provided at a portion immediately upstream of the double side shear 40 and the tip position detection means 30. ing. Here, since it is necessary to move the plate material A also in the width direction, there is a roller having a plurality of rollers for transporting in the length direction as the transport table 3 and a roller or the like having a direction for facilitating feeding in the plate width direction. A plurality of idle beams 24 are arranged. Normally, the idle beam 24 is lower than the transport height of the transport table 3, but when the plate material A is moved in the width direction, the plate material A is positioned slightly above the transport height and placed thereon.
[0029]
The aligning device 20 is configured as described in a) and b) below so that the position in the width direction of the plate material A and the like can be correctly and quickly determined.
a) As means for performing the basic work for alignment, as shown in FIG. 1, a side stopper 21 is arranged on one side of the transfer table 3 (in the illustrated example, on the left side toward the downstream side in the transfer direction), and opposite thereto. The pushing member 23 is arranged on the side of. A plurality of side stoppers 21 (four in the example in the drawing) are arranged at intervals in the transport direction, each of which protrudes above the transport height of the plate material A on the side of the transport table 3 and is idle. When the plate material A placed on the beam 24 moves in the width direction, the plate material A can hit the edge on one side. Each of the side stoppers 21 is moved by an independent moving means 22 at right angles to the conveying direction of the conveying table 3 so that each position in the plate width direction can be arbitrarily changed and set. On the other hand, a plurality of (three in the example in the figure) extrusion members 23 are also arranged at intervals in the transport direction, each of which can be moved in the width direction of the plate, and the plate material A is moved toward the side stopper 21. It can be moved in the width direction. If the position of each side stopper 21 in the width direction of the plate is appropriately determined, and the pushing member 23 is moved from the side opposite to the side where the plate A is sandwiched, the plate A is pushed and moved and hits the side stopper 21, thus the width of the plate A. The directional position and posture are uniquely determined.
[0030]
b) In order to properly determine the position of the side stopper 21 for the alignment in the width direction of the plate, the arithmetic control unit 50 is installed in connection with the aligning device 20 or the like. As shown in FIG. 1, the arithmetic control means 50 is connected to the planar shape recognition means 10, the tip position detecting means 30, the moving means 22 of the aligning device 20, and the shearing machine 42 on the moving side of the double side shear 40. And performs the following functions (1) to (4). That is,
{Circle around (1)} Based on the planar shape data of the plate material A obtained by the planar shape recognizing means 10 and the required product dimensions input separately, the optimal cutting line of the plate material A (line Aa in FIG. And line Ab).
{Circle around (2)} The tip position data detected by the tip position detecting means 30 for the plate material A once stopped on the aligning device 20 and the optimum cutting line (line Aa in FIG. 2 (a)) determined in (1) above. Originally, the width direction setting position of each side stopper 21 is determined so that the optimum cutting line matches the shearing position of the shearing machine 41 on the fixed side of the double side shear 40.
{Circle around (3)} By controlling each moving means 22, each side stopper 21 is moved in the width direction of the plate, and each position is made to coincide with the position set by the above-mentioned (2).
{Circle around (4)} The position of the shearing machine 42 on the moving side of the double side shear 40 is determined and moved so as to match the optimum cutting line determined above (the line Ab in FIG. 2A).
[0031]
The aligning apparatus 20 and the peripheral devices configured as described above align the plate material A in the following procedure, for example.
[0032]
1) The transport table 3 transports the plate material A onto the aligning device 20 as shown in FIG.
[0033]
2) With respect to the plate material A, the planar shape data obtained by the planar shape recognizing means 10 in FIG. To determine. The determination is made by the arithmetic and control unit 50 in the computer, and as shown in FIG. 2A, the plane shape data including a certain camber is Aa (side stopper in the transport direction) as an optimal cutting line at both side edges. 21) and Ab (the side opposite to Aa) are determined and stored. Although Aa and Ab are set to be parallel to each other, the optimal cutting lines Aa and Ab in the plate material A are not necessarily parallel to the transport direction of the transport table 3. In the arithmetic control means 50 (FIG. 1), for example, the distance measured from the tip of the plate material A along the optimal cutting line Aa is x, and the plate material on the side (the side where the side stopper 21 is located) from the optimal cutting line Aa Assuming that the distance to the edge of A is y, the two are associated with each other such as y = f (x).
[0034]
3) By continuing the conveyance of the plate material A, when the front end reaches the vicinity of the front end position detecting means 30 as shown in FIG. 2B, the conveyance is stopped, and the front end position is detected by the same means 30. For example, in the case of FIG. 2B, the tip position detecting means 30 determines that the tip of the plate material A is at a distance x more than the reference line 30a fixed at the fixed position. ₀ Only that it is upstream.
[0035]
4) The tip position detecting means 30 transmits the detected data as described above to the arithmetic control means 50 in FIG. 1, and the arithmetic control means 50 determines the widthwise set position of each side stopper 21 based on the data. As shown in FIG. 2B, when the edge of the side stopper 21 is pressed against the front surface (the surface near the plate A) to determine the position of the plate A, the optimum cutting line Aa of the plate A is on the fixed side. It is only necessary to overlap the shear line position 41a (extended in the transport direction) of the shearing machine 41, so that the position in the width direction of each of the side stoppers 21 is determined as a position outside by an appropriate distance from the shear line position 41a. The distance from the reference line 30a of the tip position detecting means 30 to each side stopper 21 as viewed in the transport direction is x ₁ , X ₂ , X ₃ , X ₄ (Either is unchanged), so that the set position in the width direction of each side stopper 21 can be determined as follows, for example. That is, the distance from the shear line position 41a to the front surface of each of the side stoppers 21 at the set position in the width direction is set to y. ₁ , Y ₂ , Y ₃ , Y ₄ Then, based on the above data,
y ₁ = F (x ₁ -X ₀ )
y ₂ = F (x ₂ -X ₀ )
y ₃ = F (x ₃ -X ₀ )
(F is shown in the above 2)). Length x of plate A detected by shape recognition means 10 _A X than ₄ -X ₀ For the most upstream side stopper 21 whose relationship is large, the width direction position (distance y ₄ ) Does not need to be adjusted.
In the above description, the width direction positions of the three side stoppers 21 are set. However, only the two side stoppers 21 which are respectively close to the front end and the rear end of the plate material A are used, and the side stoppers 21 (the above-described side stoppers 21) are provided therebetween. At distance y ₂ (Set at the retracted position) can also be used without being used.
[0036]
5) The side stoppers 21 are moved to the respective width direction setting positions by controlling the driving of the moving means 22 (FIG. 1) by the arithmetic and control means 50 (same as above), and thereafter (or simultaneously), the idle beam 24 ( The extruding member 23 is moved closer to the side stopper 21 while raising FIG. 1). By doing so, the plate material A can be pushed and moved in the width direction, and one edge can be pressed against the side stopper 21 as shown in FIG. The plate material A does not always contact each side stopper 21 at the same time, but as long as the pushing member 23 is moved at the same time, the edge of the plate material A contacts the plurality of side stoppers 21 within the length range of the plate material A. It comes into contact. As a result, the position and orientation of the plate material A are uniquely determined, and the optimal cutting line Aa determined in the above 2) overlaps the shearing line position 41a of the shearing machine 41.
[0037]
6) The arithmetic and control unit 50 (FIG. 1) determines the position of the shearing machine 42 on the moving side of the double side shear 40 in the sheet width direction, and moves the shearing machine 42 by a required amount in the sheet width direction to obtain a shear line. The position 42a (the extension line in the transport direction) is made to coincide with the optimum cutting line Ab determined in the above 2) as shown in FIG. 2B.
[0038]
7) When the above aligning operation is completed, the idle beam 24 (FIG. 1) is lowered, the side stopper 21 and the pushing member 23 are retracted to the outer retreat position (the original position), and then the transfer table 3 is moved. Is activated to feed the plate material A into the double side shear 40. Thereby, both side edges of the plate material A are correctly cut along the optimum cutting lines Aa and Ab.
[0039]
FIG. 3 shows a front view (a view taken in the direction of arrows III-III in FIG. 1) of the aligning device 20 'partially modified from that shown in FIGS. In this example, each of the idle beams 24 (FIG. 1) described above is changed to an elevating member 25 as shown, thereby eliminating the need for the pushing member 23 (FIGS. 1 and 2).
[0040]
Like the idle beam 24 of FIG. 1 (FIG. 1), the elevating member 25 is disposed between the rollers for transporting in the longitudinal direction as the transport table 3 (at a plurality of locations). This is an elevating beam having rollers (not shown) arranged on the upper surface. Normal height h below the transport height of the transport table 3 ₁ From the height h, which is slightly higher than the transport height of the transport table 3 ₂ Unlike the above-mentioned idle beam 24 which rises (and descends) only up to a height h, an inclined height h that allows the plate material A placed on the upper surface to move by the action of gravity until it hits the side stopper 21. ₃ It is possible to rise to
[0041]
The height of the lifting member 25 ₃ If the plate material A is pressed against the side stopper 21 and the position and posture thereof can be appropriately determined without using the pushing member 23 described in 5) above. In addition to eliminating the need for the pushing member 23, the elevating member 25 can be easily configured simply by adding some functions to the idle beam 24. The configuration can be reduced.
[0042]
In the example of FIG. 4, a primary stopper 26 for stopping the movement of the plate material A in the width direction is additionally provided in the same aligning device 20 ′ as in FIG. The primary stopper 26 is an iron member fixedly disposed by welding on a frame or the like of the transfer table 3. ₃ ), The side stopper 21 is retracted to the left side (downward of the inclination) of the primary stopper 26 in the drawing. The primary stopper 26 firmly receives the plate material A sliding down along the inclination of the elevating member 25 and bears most of the impact load at that time.
By the action of the elevating member 25 and the primary stopper 26, the position of the plate material A in the width direction is first shifted slightly toward the side stopper 21, and then the tip position of the primary stopper 26 is moved rightward in the drawing (opposite to the side stopper 21). The side stopper 21 is moved to the position where it has been moved. If the subsequent stop position of the side stopper 21 is appropriately set, the width direction position and posture of the plate material A can be appropriately determined.
[0043]
Fig. 5 shows an aligning device 20 "which has been further modified. This device 20" is used to determine the contact between the plate material A and the side stopper 21 required for the aligning operation by the above-described extrusion member 23. This is realized by simultaneously moving the side stoppers 21 over a long distance in the plate width direction without using the lifting members 25 (FIG. 3) (FIGS. 1 and 2).
[0044]
That is, the configuration is as follows. As shown in FIG. 5, first, the center line position of the aligning device 20 ″ and the double side shear 40 is set to the side opposite to the side where the side stopper 21 is located with respect to the center line position of the transport table 3 on the upstream side thereof. As shown in the figure, the shearing device 41 on the fixed side of the double side shears 40 has its shear line position 41a positioned at one side of the plate material A sent by the transfer table 3 to the aligning device 20 ″. The edge (the edge on the side cut by the shearing machine 41; the left side in the example shown in the drawing) is located closer to the edge on the other side than the existing range. Then, the moving means 22 of each side stopper 21 is provided with the ability to move a distance equal to or greater than the offset amount (distance d).
[0045]
In the aligning device 20 ″ of FIG. 5, the front surface of each side stopper 21 and the edge of the plate material A contact while moving the side stopper 21 to the opposite side, and the side stopper 21 is fixed at the width direction set position. At this time, the optimum cutting line Aa (see FIG. 2) of the plate material A can be made to coincide with one of the shearing line positions 41a of the double side shear 40. In order to perform such alignment in a short time without performing retry. Should move the plurality of side stoppers 21 not one by one but all of them that come into contact with the plate material A. Furthermore, the width should be adjusted so that the relative positional relationship does not change during the movement. The relative positional relationship when placed at the direction setting position is determined in advance at a position far from the center line of the transport table 3, and each is parallel at the same speed as it is. So as not to plate too moved by inertia when the moving is stopped movement of good. Side stopper 21, the rate of transfer is sufficiently even necessary to suppress according to the mass of the plate A.
[0046]
【The invention's effect】
According to the plate material aligning device described in claim 1, the plate material aligning operation performed prior to the cutting in the length direction can be appropriately performed in a short time by using a side stopper or the like. The aligning operation by this apparatus can be completed by moving the plate only once without repeating the retry. In addition, smooth work can be performed not only on carbon steel but also on any plate material such as stainless steel and non-ferrous metal.
[0047]
According to the aligning device of the second aspect, the width direction position of each side stopper can be automatically and appropriately set. Therefore, the aligning operation of the plate material can be performed automatically and accurately in a shorter time.
[0048]
In the aligning device according to the third aspect, the plate material can be particularly reliably moved, and the aligning operation using the side stopper can be appropriately performed.
The aligning device according to claim 4 has an advantage that the device can be configured at low cost.
In addition, according to the aligning device of the fifth and sixth aspects, since the mechanical load acting on the side stopper can be reduced, the structure can be simplified. In the device according to the sixth aspect, it is not necessary to offset the lines, so that the layout can be simplified.
[Brief description of the drawings]
FIG. 1 is a plan view showing an aligning device 20 for a plate material A and the like as an embodiment of the present invention.
FIG. 2 is a conceptual plan view showing an aligning operation of the plate material A by the aligning device 20. 2A shows a state before the alignment, and FIG. 2B shows a state after the completion of the alignment.
FIG. 3 is a front view (a view taken in the direction of arrows III-III in FIG. 1) of an aligning device 20 'partially modified from that shown in FIGS. 1 and 2;
FIG. 4 is a front view showing an aligning device 20 ′ with still another modification.
FIG. 5 is a plan view showing an aligning device 20 ″ with another modification.
[Explanation of symbols]
3 transport table
10. Planar shape recognition means
20 ・ 20 ′ ・ 20 ”aligning device
21 Side stopper
22 Transportation
23 Extrusion member
25 Lifting member
26 Primary stopper
30 Tip position detecting means
40 Double Side Shear
41a ・ 42a shear line position
50 arithmetic control means
A board material
Aa / Ab optimal cutting line

Claims (6)

An aligning device that is arranged on the upstream side of the cutting means that cuts the plate material in the length direction and determines a width direction position of the plate material,
A plurality of side stoppers each having independent moving means, and the position in the width direction is arbitrarily set, are provided at intervals in the length direction,
A plate aligning device comprising means for pressing a side end of a plate in a width direction to a side stopper by realizing a relative movement in a width direction between the plate and a side stopper. There are provided means for recognizing the planar shape of the plate material and means for detecting the tip position of the plate material,
The optimal cutting line of the plate material is determined based on the planar shape of the plate material recognized by the planar shape recognition means, and the optimal cutting line is cut based on the tip position of the plate material detected by the tip position detecting means. Arithmetic control means for determining a set position in the width direction of each side stopper to match a passage line to the means, and controlling a moving means of each side stopper in accordance with the set position is provided. The plate aligning apparatus according to claim 1. As the above-mentioned means for pressing the widthwise end of the plate to the side stopper, an extruding member that moves in the width direction and pushes the plate is provided on the side opposite to the side stopper with respect to the plate. The plate aligning apparatus according to claim 1 or 2, wherein: As the above-mentioned means for pressing the width direction end of the plate to the side stopper, the plate is placed on the transport path of the plate, and the elevating member which can be inclined so that the side opposite to the side stopper with respect to the plate is up. The plate aligning apparatus according to claim 1 or 2, wherein a plate member is provided. As the above-mentioned means for pressing the width direction end of the plate material against the side stopper, the center line position of the cutting means is opposite to the center line position of the upstream conveying path and opposite to the side with the side stopper. The plate aligning apparatus according to claim 1 or 2, wherein the side stoppers are offset to the side, and the moving means of each side stopper has an ability to move the side stopper by a distance equal to or more than the offset amount. As the above-described means for pressing the width direction end of the plate material to the side stopper, the plate material is temporarily moved in the width direction near the side stopper and pressed against the primary stopper, and then the side stopper is passed through the position of the primary stopper. 7. An aligning apparatus for a plate material according to claim 1, further comprising a mechanism for moving the plate material to a position closer to the plate material, pressing against a width direction end of the plate material, further moving to a set position, and stopping. .

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