JP6543232B2 - Inclined forming device used for destacking device - Google Patents

Description

  The present invention relates to a slope forming device for forming slopes on the end faces of a plurality of blanks of a stack C in a destacking apparatus, and more particularly to ensure the highest position when separating blanks in cooperation with a separating apparatus. The present invention relates to a slope forming device capable of forming a step-like slope on the end faces of a plurality of blanks so that only one blank can be lifted.

DESCRIPTION OF RELATED ART In the conveyance apparatus of blank materials, such as a metal plate, in order to separate top blank materials one by one from the stack in which blank materials were stacked, various separation devices are used (for example, refer to patent documents 1 and 2) .
The separating apparatus is provided with a push-up bar having an uneven tooth, and there is a type in which the blank material is hooked and lifted on the tooth, a magnetic attachment type without using the push-up bar, an adsorption type and the like.
There are various push-up bars of the separating device for pressing the stack in accordance with the type and shape of the blank material, and a separating device which can switch this as an attachment is also known.

  On the other hand, an apparatus for arranging the stack for the purpose of assisting the separating apparatus, for example, an extrusion apparatus which press-fits the stack from the side direction to adjust the shape of the stack is used.

In this method, the vertical plate provided in the extrusion device is pressed against the side of the stack, and the end faces of the stacked blanks are flush with each other.
However, in the state of the stack, in the case where the horizontal direction displacement is already large on the end faces of the blanks, unevenness is generated and the blanks can not be aligned sufficiently (see FIG. 11).

If the push-up bar of the separation device is operated in this state, not the blank material at the top of the stack but the blank material protruding most to the push-up bar side is lifted (see FIG. 12).
In this case, all the blanks stacked thereon are to be lifted, and the original purpose of the separation device can not be achieved.

In order to cope with this, when the suction chuck is lifted, the uppermost blank material is bent to form a space between the lower blank material and separate it by bringing the suction chucks closer or closer to each other. The method is adopted.
Also, a vertical wall is provided on the side of the stack opposite to the separating device, and the blanking device is pressed against the wall by the separating device to be bent and separated (see FIG. 12). ).

According to these methods, a plurality of blanks may be separated after being lifted together, and all but the topmost stack of the stack will fall onto the unlifted blanks.
The impact at the time of the drop causes the alignment of the blanks to be poor, and the deformation or chipping occurs to the extreme, which causes a decrease in the yield of the product.

  Moreover, when such a method is adopted, depending on the thickness of the blank material and its hardness, the blank material may not be bent and an effect may not be obtained.

JP, 2016-94282, A International Publication No. 2008/039129 pamphlet

  The slope forming device A of the present invention is developed on the background of the above problems. That is, an object of the present invention is to provide a slope forming device A for use in a destacking device capable of reliably separating the blank material C1 one by one from the stack C regardless of the thickness or size of the blank material C1. It is.

  As a result of intensive studies to solve the above problems, the present inventor has unexpectedly found that the above problems can be solved by providing the inclined forming device with a pressing portion having an inclination, and the present invention has been completed.

That is, the present invention (1) is a slope forming device A for slidingly moving the blanks C1 and C2 in order to lift only the uppermost blank C1 from the stack C in which the blanks C1 are stacked. Stack pressing unit 1 for pressing, linear motion mechanism 2 connected to the stack pressing unit 1 to reciprocate the stack pressing unit 1 in the horizontal direction, and a control unit for switching the presence / absence of operation of the linear motion mechanism 2 projecting upper stack C side of the stack pressing portion 1, the lower side have a slope receding from the stack C side, which stack the pressing portion 1 is pressed by a force to overcome the frictional resistance of the blank C1, rectangular The stack pressing portion 1 can horizontally reciprocate through the through hole 5, and the front wall 4 is a magnet B. Consists in inclination forming apparatus A is provided with a.

  That is, the present invention resides in (2) the slope forming device A according to the above (1), which cooperates with the separation device B disposed at the opposite position across the stack C.

  That is, the present invention resides in (3) separation devices B disposed at opposite positions sandwiching the stack C, and the slope forming device A according to the above (2) in which a plurality of separators B are alternately disposed.

  That is, the present invention resides in (4) the slope forming device A according to the above (1), wherein the slope is between 0 ° and 20 °.

  That is, the present invention resides in (5) the slope forming device A according to the above (1), which presses the blank material C1 with a force that overcomes the frictional resistance.

  The present invention is a slope forming device A for slidingly moving blank materials C1 in order to lift only the uppermost blank material C1 from the stack C in which the blank materials C1 are stacked, and a stack pressing portion for pressing the stack C 1, a linear motion mechanism 2 connected to the stack pressing portion 1 to reciprocate the stack pressing portion 1 in the horizontal direction, and a control unit for switching the presence / absence of operation of the linear motion mechanism 2 The upper side projects to the stack C side, and the lower side is inclined from the stack C side so that the blank C1 at the top of the stack C is reliably pushed to the side of the separating apparatus B opposite to the inclination apparatus. The operation of lifting only the uppermost blank material C1 by the separating device B can be more appropriately assisted.

  By co-operating with the separating devices B disposed at opposing positions across the stack C, the stack C topmost blank material C1 can be lifted continuously.

  By arranging a plurality of separators B alternately arranged at positions opposite to each other across the stack C, it is selectively used to form a complex blank material C1 having a thickness, a size and a shape Also, the effect of lifting the uppermost blank material C1 can be exhibited.

  When the inclination is between 0 ° and 20 °, the stack pressing unit 1 does not break the stack C and can push out the uppermost blank material C1 sufficiently, and the separating device used together with the inclination forming device A Increase the separation effect of B.

FIG. 1 is a schematic side view illustrating the positional relationship between the slope forming device and the separating device. FIG. 2 is a perspective view of the ramp forming device. FIG. 3 is an explanatory vertical cross-sectional view of a state in which the stack pressing portion in the slope forming device is advanced. FIG. 4 is an explanatory vertical cross-sectional view of a state in which the stack pressing portion in the slope forming device is retracted. FIG. 5 is an explanatory view showing a state in which the inclination forming device presses the blank material to form a step-like inclination, and the push-up bar stands by. FIG. 6 is an explanatory view showing a state in which the push-up bar is advanced to abut on the end of the uppermost blank material. FIG. 7 is an explanatory view showing a state in which the push-up bar is rotated upward. FIG. 8 is a top view schematically showing the positional relationship between the separation device and the extrusion device. FIG. 9 is a top view schematically showing the positional relationship between the separation device and the extrusion device. FIG. 10 is a top view schematically showing the positional relationship between the separation device and the extrusion device. FIG. 11 is an explanatory side view showing a conventional separating apparatus and a pushing apparatus. FIG. 12 is an explanatory side view showing a conventional separating apparatus and a pushing apparatus.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as needed.
In the drawings, the same elements will be denoted by the same reference signs and redundant description will be omitted.
Further, the positional relationship such as upper, lower, left and right is based on the positional relationship shown in the drawings unless otherwise specified.
Furthermore, the dimensional ratio in the drawings is not limited to the illustrated ratio.

The ramping device A of the present invention is typically used with a separating device B.
FIG. 1 is a schematic side view illustrating the positional relationship between the slope forming device A and the separating device B. As shown in FIG.

The slope forming device A and the separating device B are disposed opposite to each other so as to sandwich the stack C placed on the lifter L as shown in the figure.
In this case, the inclined forming device A is disposed such that the stack pressing unit 1 faces the stack side surface, and the separating device B is disposed such that the push-up bar B1 faces the stack side surface.
The distance between the slope forming device A and the stack C and the distance between the stack C and the separation device B are appropriately adjusted in accordance with the specifications such as the size and the thickness of the blank material C1 constituting the stack C.
The slope forming device A and the separating device B are disposed at opposite positions facing each other in the horizontal direction across the stack C in a top view.

By the way, in the destacking apparatus, the end faces of the plurality of blanks C1 of the stack C are inclined stepwise by the inclined forming apparatus A, the uppermost blank C1 is separated by the separating apparatus B, and the vacuum chuck is not shown. It can be picked up and transported to another place.
In principle, the inclined forming device A of the present invention is used as a target plate (blank material C1) such as an aluminum plate or a synthetic resin plate which is not magnetized, but it is naturally applicable to a plate which is magnetized.
Moreover, as a shape of a board | plate material, arbitrary shapes, such as circular shape other than a rectangular shape, are employable.

Here, first, the stack C to be subjected to the step-like inclination application by the inclination forming device A of the present invention will be described.
The stack C is obtained by stacking a large number of blanks C1 on the seat surface of a lifter L provided with an ascending mechanism.
In this case, as shown in FIG. 1, the blanks C1 do not stack correctly, and usually they are in a mutually offset state in many cases. In this state, the end of the stacked blanks C1 (ie, , And the side surface of the stack C are uneven and uneven.

In the stack C, each time one of the uppermost blanks C1 is picked up and transported from the stack C, the seat surface of the lifter L is raised by the thickness of the blanks C1.
As a result, the stack pressing portion 1 of the slope forming device A and the push-up bar B1 of the separating device B can be operated to press or separate the stack C at the same height.

  In addition, the stack C is supported by a plurality of positioning pins (not shown) around the periphery, and by appropriately adjusting the positions of the positioning pins, it is also possible to cope with the stack C consisting of blanks C1 of different sizes and shapes.

Next, the slope forming device A of the present invention will be described.
FIG. 2 is a perspective view showing the slope forming device A. As shown in FIG.
FIG. 3 is an explanatory vertical cross-sectional view of a state in which the stack pressing unit 1 in the slope forming device A is advanced.
FIG. 4 is an explanatory vertical cross-sectional view of a state in which the stack pressing unit 1 in the slope forming device A is retracted.

  The inclined forming device A according to the invention includes a stack pressing unit 1 that presses the stack C in a state in which the blanks C1 are stacked, a linear motion mechanism 2 that reciprocates the stack pressing unit 1 horizontally, and air between the blanks. And a control unit (not shown) for switching the presence / absence of the operation of the stack pressing unit 1 and the like.

The stack pressing unit 1 of the slope forming device A can be horizontally driven by the linear motion mechanism 2 to press the side surface of the stack C (that is, the end surface of the stacked blanks C1).
On the other hand, a front wall 4 is provided at the front end of the slope forming device A, and a rectangular through hole 5 is formed in the front wall 4.

The stack pressing unit 1 connected to the linear movement mechanism 2 makes a face forward through the through hole 5 when necessary, and exerts a pressing action on the stack C. When the stack pressing unit 1 is not needed, the stack pressing unit 1 stands by behind the front wall 4.
Here, the shape of the stack pressing portion 1 is formed to have an inclined portion 11 (i.e., an inclined surface) such that the upper side protrudes toward the stack side and the lower side recedes from the stack side.

When the stack pressing portion 1 having such an inclined portion 11 reciprocates in the horizontal direction (i.e., slides), the end of the blank material C1 on the side opposite to the pressing side inclines and protrudes in a step-like manner.
In this case, the blank C1 at the top of the stack C is pressed by the stack pressing part 1 so as to be within the length range of the inclined part 11 of the stack pressing part 1, a certain distance from the top blank C1 The blank material C1 in the range located below is pushed to slide (slide) (see FIG. 5).

As a result, the blank material C1 protrudes in a step-like manner on the opposite side to the inclined forming device A, that is, the separation device B side.
That is, the blank material C1 positioned at the top of the stack is most projected.

At this time, from the viewpoint of the separation effect of the push-up bar B1 of the separation device B used together with the inclination forming device A, the inclination angle θ of the inclined portion 11 of the stack pressing portion 1 is formed to be 0 ° to 20 °. preferable.
As a result, when the stack pressing unit 1 presses the stack C, the stack C can not be broken and the uppermost blank material C1 can be sufficiently pushed out.

By the way, the upper end of the stack pressing unit 1 of the inclined forming device A is disposed so that the same height as the uppermost blank material C1 of the stack C or the upper end of the stack pressing unit 1 is higher.
Thus, the stack pressing unit 1 can press the uppermost blank material C1 with certainty.

As described above, in the slope forming device A, the stack pressing portion 1 having the sloped portion 11 moves forward and presses the end face of the blank C1 of the stack C, whereby the ends of the plurality of blanks C1 are stair Inclined and projected in a shape.
As a result, the blank material C1 at the top of the stack is projected most forwardly than the blank material C1 stacked immediately therebelow, that is, in the state of projecting most to the separation device B side.

In such a state, by using the push-up bar B1 of the separation device B on the opposite side of the slope forming device A, the blank material C1 at the top of the stack is reliably separated upward.
The slope forming device A can more accurately assist the separating device B in the action of lifting only the uppermost blank material C1.

The linear movement mechanism 2 for reciprocating the stack pressing unit 1 in the horizontal direction includes a control unit (not shown) capable of controlling the driving speed so as to correspond to the speed of the destacking device.
Thereby, the slope forming device A can be controlled in synchronization with the transport device following the destacking device.

When the stack pressing unit 1 presses the stack C and slides the blank material C1, the upper and lower surfaces of the blank material C1 are in contact with each other, so the frictional resistance differs depending on the material and the weight.
The pressing force needs to have a size that overcomes the frictional resistance. For example, when the blank material C1 is aluminum, since the weight is lighter than in the case of a steel material, it may be pressed with a light force.
This makes it possible to push out the uppermost blank material C1 sufficiently to overcome the frictional resistance without breaking the stack C.

By the way, the slope forming device A is provided with a slope forming device side air nozzle 3 (connected to a pressure source such as a pump not shown) for blowing air between the blanks.
This is to blow air between the blank C1 and the lower blank C1 when the push-up bar B1 of the separating device B lifts the uppermost blank C1.

As a result, the blanks C1 adhered to each other by vacuum, oil film or the like are separated (in other words, peeled off), and only the blank C1 at the top of the stack C is more reliably lifted by the push-up bar B1 of the separation device B (in other words, Be pumped up).
The pressure with which the slope forming device-side air nozzle 3 blows air varies depending on the type and thickness of the blank material C1, but if it is too weak, it is difficult to obtain the effect of peeling the uppermost blank material C1 using the separation device B. .

  For this reason, the inclination forming device-side air nozzle 3 is provided with an adjustment mechanism (not shown) capable of adjusting the timing, the amount and pressure of air to be blown.

Moreover, the magnet (not shown) is provided in the front wall part 4 of the inclination formation apparatus A, and when the press part of the inclination formation apparatus A is not used, this function is exhibited.
That is, when not cooperating with the push-up bar B1 of the separation device B located at the opposite position, the separation function is exhibited as a single alternative separation means using magnetic force.

Next, the outline of the separating device B cooperating with the inclination forming device A will be described.
The separation device B lifts up the blank material C1 at the top of the stack, a push-up bar B1, a power mechanism B3 that drives the push-up bar B1 via the balance bar B2, a separation device-side air nozzle that blows air between the blank materials C1 ( Not shown), a magnet B4 and the like (see FIG. 5).
The push-up bar B1 is provided with a serrated tooth, and the base thereof is provided with a first slider B5 and a second slider B6 ahead of it, and the first slider B5 is loosely inserted in the balance bar B2 There is.
A guide plate B8 is replaceably attached to the side wall portion B7, and a guide hole B9 and a guide surface B10 are formed in the guide plate B8.
The first slider B5 is further loosely inserted in the guide hole B9.

The first slider B5 is guided along the guide hole B9, and the second slider B6 is guided along the guide surface B10.
Therefore, the push-up bar B1 can rotate upward while advancing from the first slider B5.
By the movement of the push-up bar B1, it is possible to hook the serrated teeth on the stack uppermost blank material C1 and lift only one stack uppermost blank material C1.
The separation device air nozzle blows air between the stack C and the blank C1 lifted by the push-up bar B1.

A front wall 4 is provided at the front end of the side wall B 7, and a magnet B 4 is provided on the front wall 4.
The magnet B4 exhibits a function when the push-up bar B1 is not used.
That is, when not cooperating with the stack pressing portion 1 of the slope forming device A in the opposite position, the separation function is exhibited as a single alternative separation means using a magnetic force.

Next, the separation function of the blank material C1 by the cooperative action of the separation device B and the inclination forming device A will be described.
FIG. 5 is an explanatory view showing a state in which the inclination forming device A presses the blank material C1 to form a step-like inclination, and the push-up bar B1 stands by.
The stack pressing unit 1 of the slope forming device A is advanced to press the blank material C1 to form a step-like slope.
Therefore, on the separation device B side, the uppermost blank material C1 is in the most protruded state.
In addition, in the stage before step-like inclination formation by this inclination-forming apparatus A, the blank material C1 does not overlap completely normally, but the edge part is in a mismatched state (refer FIG. 1).

FIG. 6 is an explanatory view showing a state in which the push-up bar B1 advances and abuts on the end of the uppermost blank material C1.
The stack pressing portion 1 of the slope forming device A is at the same position, and the push-up bar B1 advances from the opposite side and abuts on the end of the uppermost blank material C1.
At this time, the uppermost blank material C1 is not lifted up yet.

FIG. 7 is an explanatory view showing a state in which the push-up bar B1 is rotated upward.
Also at this time, the stack pressing portion 1 of the slope forming device A is at the same position, and the push-up bar B1 pivots upward. By this movement, the uppermost blank material C1 is lifted. At this time, air is blown into the lower side of the lifted blank material C1 from the slope forming device side air nozzle 3 and the separation device side air nozzle.
As a result, the releasability of the uppermost blank material C1 and the lower stacked blank material C1 is further enhanced, and the separating device B can lift the uppermost blank material C1 more reliably.

  Thereafter, the lifted top blank material C1 is transported to the next step using a suction chuck or the like (not shown).

  8 to 10 are top views schematically showing the positional relationship between the slope forming device A and the separating device B.

  In the separation system shown in FIG. 8, one inclined forming device A and one separation device B facing each other across the stack C are used as a pair.

Further, in the separation system shown in FIG. 9, one inclination forming device A and one opposing separation device B face each other, and further, one inclination forming device A oppositely disposed to one separation device B. And two pairs in total are arranged.
Thereby, it is possible to switch the side (left and right in the figure) where the separation device B lifts the blank material C1.

Further, in the separation system shown in FIG. 10, a total of four pairs of the inclination forming device A and one pair of opposing separation devices B opposed to each other in the back and forth direction are disposed.
In this arrangement, the blank material C1 can be lifted from any of the front, rear, left, and right directions.

In addition, in the case where a plurality of pairs of the slope forming device A and the separation device B are arranged as described above, a pair can be selectively used.
This makes it possible to cope with lot changes and changes in the transport direction.

  As mentioned above, although the inclination formation apparatus A of this invention was described, this invention is not limited to the range demonstrated by embodiment mentioned above, A various change is possible if it follows the objective, These are also included in the technical scope of the present invention.

As described above, the slope forming device A of the present invention is generally used with the separation device B, but it is of course possible to use the slope forming device alone.
In addition, any type of separation device B used together is applicable.
For example, it is used when it is necessary to form the end portion in a step-like slope over a certain range in the upper and lower sides of the stacked blanks C1.

In addition, it is also possible to change the angle θ of the inclined portion 11 of the stack pressing portion 1 in the middle to have a plurality of stages of inclination.
For example, when the inclination angle θ is large at the upper side and smaller than the lower side, the inclination degree of the blank material C1 can be formed in two stages.

It is also possible to make the ramp forming device itself movable up and down.
In this case, for example, by providing two or more stack pressing parts 1, fail-safe works, and even if one of them fails, another stack pressing part 1 can be used.

According to the present invention, only the uppermost blank material C1 can be separated and lifted reliably and efficiently.
It is applicable when the workpiece to be processed is a plate material and is in a stacked state, and is widely used in the destacking process in plate material processing including press processing.

A: Inclined forming device 1: stack pressing portion 11: inclined portion θ: angle 2: linear motion mechanism 3: inclined forming device side air nozzle 4: front wall 5 ... Through hole B: Separation device B1: Push-up bar B2: Balance bar B3: Power mechanism B4: Magnet B5: First slider B6: Second slider B7 · · · Side wall portion B8 · · · guide plate B9 · · · guide hole B10 · · · guide surface C · · · stack C1 · · · blank material L · · · lifter

Claims (4)

A ramping device for slidingly moving blanks together to lift only the top blank from the stack of stacked blanks,
A stack pressing unit that presses the stack, a linear motion mechanism connected to the stack pressing unit to reciprocate the stack pressing unit horizontally, and a control unit that switches the operation of the linear motion mechanism.
Upper stack pressing portion for pressing the stack have a gradient which protrudes stack side, the lower retracted from the stack side,
The stack pressing portion presses the blank material with a force that overcomes the frictional resistance,
A front wall portion having a rectangular through hole is provided, and the stack pressing portion can horizontally reciprocate through the through hole,
A ramp forming device wherein the front wall portion comprises a magnet.   The ramping device of claim 1 co-operating with a separating device positioned opposite the sandwiching the stack.   3. The apparatus according to claim 2, wherein a plurality of said separating devices are arranged alternately with each other with said separating devices arranged at opposite positions across said stack.   The ramping device of claim 1 wherein the ramp is between 0 ° and 20 °.

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