WO2019181248A1

WO2019181248A1 - Blank separation device and blank separation system using same

Info

Publication number: WO2019181248A1
Application number: PCT/JP2019/004137
Authority: WO
Inventors: 朗岡崎
Original assignee: 株式会社エイチアンドエフ
Priority date: 2018-03-22
Filing date: 2019-02-06
Publication date: 2019-09-26
Also published as: JP2019167196A; JP6745830B2

Abstract

Provided is a separation device capable of reliably lifting only the uppermost one of blanks in a stack while reducing load, and capable of starting the lifting operation independently of the position at which the push-up bar abuts against a blank. Provided is a separation device A for separating the uppermost blank B1 from the blank B1 immediately below in a stack B in which multiple such blanks B1 are stacked, the separation device A being equipped with: a push-up bar 5 which comprises a tooth portion 52 that abuts against a blank and a base portion 51 that is contiguous with the tooth portion; a first slider body 1 and a second slider body 9 which are arranged on the base portion; a balance bar 3 which has one end pivotally fitted to the first slider body; a first linear movement mechanism 2 to which the other end of the balance bar to said one end pivotally fitted to the first slider body is pivotally fitted; and a second linear movement mechanism 11 which is coupled to the second slider body. The first slider body is moved back and forth by the first linear moving mechanism and the second slider body is moved up and down by the second linear moving mechanism, thereby allowing the push-up bar to lift the end of the uppermost blank.

Description

Blank material separation device and blank material separation system using the same

The present invention relates to a separation device used for a destacker, and more specifically, the uppermost blank material of a stack is reliably turned up by reducing the load, and regardless of the position where the push bar abuts against the blank material. The present invention relates to a separation device capable of starting a blank material turning-up operation.

A normal destacker is an apparatus for stacking a large number of plate-shaped blank materials and taking out blank materials to be processed one by one from the stack.
Therefore, when processing continuously, it is necessary to pick up the blank material one by one from the stack, and for this purpose, an apparatus for separating the uppermost blank material from the blank material immediately below is used.

By the way, since the blank material of the stack is heavy, the blank materials may be brought into close contact with each other due to oil or the like adhering to the blank material and cannot be taken out, so-called double blank may occur.
In order to solve this problem, a separating apparatus for separating the blank materials when the blank materials are taken out has been developed.

For example, an apparatus is known in which all end portions of a stack blank are magnetized to the same polarity by a magnet and the uppermost blank is easily separated by the magnetic force (repulsive force).
However, this can only be applied to blanks that can be magnetized and is not versatile.

In addition, there is a so-called air knife that blows air between a blank material at the top of the stack and a blank material directly below the high-pressure air toward the stack to facilitate separation of the top blank material.
This has the advantage that it can be applied universally regardless of the type of blank material, but the directivity of the blown air cannot be completely controlled, resulting in poor energy efficiency, high running costs, and high noise. There is a drawback.

For this reason, a separation device is known in which a sawtooth push-up bar is moved to mechanically separate the uppermost blank from the stack (see, for example, Patent Documents 1 and 2).
This is provided with a blade having serrated teeth, and a stack blank is hooked on the teeth of the blade and turned up obliquely upward from below.
Since these separators turn up the blank by mechanical action, the blank can be separated regardless of whether the blank constituting the stack is a magnetic material, a non-magnetic material, or a mixture thereof. And versatility.
In addition, since the blade teeth turn up the blank, the separation efficiency is high in terms of energy.

However, in such a conventional separation device, when the side of the stack that contacts the blade is not flush, the blade teeth are in contact with a blank material other than the uppermost blank material. There was a case.
As a result, not only the top blank material but also several blank materials were unexpectedly turned up at the same time.
In particular, such a tendency was conspicuous when the blank was thick or heavy.

By the way, the applicant has applied for a separation device that starts up the turning operation at the same time as contacting the top blank material in order to reliably turn up only the top blank material (see Patent Document 3). However, in this separation device, the push-up bar that contacts the blank material pushes in the uppermost blank material, and the blank material cannot move in the horizontal direction and starts to be turned up. Is loaded. Furthermore, there is a difficulty that the start of the turning-up operation depends on the contact position of the push-up bar with the blank material.

International Publication No. 2008/039129 Pamphlet Japanese Unexamined Patent Publication No. 2016-94282 Japanese Patent Application No. 2016-164167

The separation device of the present invention has been developed against the background of the above problems.
That is, the object of the present invention is to reliably turn up only the top blank material of the stack while reducing the load applied to the apparatus regardless of the magnetic material or non-magnetic material of the blank material, and to apply the push bar to the blank material. It is an object of the present invention to provide a separation device capable of starting a blank material turning-up operation regardless of the contact position.

As a result of intensive studies to solve the above-mentioned problems, the present inventor has driven the first slider body back and forth by driving the first linear motion mechanism, and the second by driving the second linear motion mechanism. When the slider body is driven up and down, the push-up bar turns up the end of the uppermost blank material, so that the separator comes into contact with only the uppermost blank material of the stack, and the position where the push-up bar comes into contact with the blank material It was found that the blank material turning-up operation can be started regardless.
The present invention has been made based on these findings.

The present invention is (1) a separation device for separating the uppermost blank material from a stack of a plurality of blank materials stacked from a blank material directly below the stack, and a tooth portion that comes into contact with the blank material and the tooth portion A push-up bar comprising a base portion continuous with the tooth portion, a first slider body and a second slider body provided on the base portion, a balance bar having one end pivotally attached to the first slider body, and the other end of the balance bar And a second linear motion mechanism connected to the second slider body. The first slider body is moved back and forth by the first linear motion mechanism, and the second linear motion mechanism The push-up bar exists in the separation device that lifts the end of the uppermost blank material by moving the second slider body up and down.

The present invention further includes (2) a side wall portion that pivotally supports the balance bar, the balance bar is provided with a slot-like balance bar hole, and the side wall portion is provided with a slot-like side wall guide hole. Is provided with a slot-like base guide hole, the first slider body is loosely inserted into the balance bar hole and the side wall guide hole, and the second slider body is loosely inserted into the base guide hole, The separation apparatus according to the above (1), wherein the first slider body is guided back and forth along the guide hole, and the second slider body is guided up and down along the base guide hole.

The present invention resides in (3) the separation device according to the above (2), which includes a guide plate to which a side wall portion is detachably attached and a side wall guide hole is provided in the guide plate.

The present invention is (4), wherein a front wall portion is provided in front of the side wall portion, and a magnet for separating the blank material by magnetic force is attached to the front wall portion. Existing in the separation device.

In the present invention (5), the air nozzle for blowing air between the blank material at the top of the stack and the blank material immediately below the blank material is provided on at least one side of the side wall portion. It exists in the separation apparatus as described in any one of description.

The present invention resides in (6) the separation device according to any one of (2) to (5), wherein the first linear motion mechanism and the second linear motion mechanism are both air cylinders.

The present invention resides in (7) the separation apparatus according to any one of (2) to (5) above, wherein the second linear motion mechanism is servo-driven.

The present invention comprises (8) the separation apparatus according to any one of (1) to (7) above, and an extrusion apparatus having a pressing portion for extruding the blank material in the horizontal direction,
The separation device and the extrusion device are arranged at positions facing each other with a blank material interposed therebetween,
The pressing part exists in the separation system in which the contact surface with respect to the blank material is inclined from the lower part to the upper part toward the stack side.

In the present invention, the first slider body is moved back and forth by the first linear motion mechanism, and the second slider body is moved up and down by the second linear motion mechanism, so that only the blank material at the top of the stack is placed. Can be reliably turned up and separated. Thereby, the separated blank material can be continuously conveyed by a conveying device having a suction cup or the like.
Moreover, by providing the 2nd linear motion mechanism which moves a 2nd slider body to an up-down direction, the raising operation | movement of a blank material can be started irrespective of the contact position with respect to the blank material of a push-up bar.

At this time, the first slider body is guided back and forth along the side wall guide hole, and the second slider body is guided up and down along the base guide hole so that the push bar moves even when it moves. There is no.

The present invention includes a guide plate having a side wall portion detachably attached thereto, and the guide plate can be easily replaced by providing the side wall guide hole in the guide plate. By using a guide plate having side wall guide holes of different shapes, it is possible to change the trajectory of the push-up bar and cope with the change of the blank material constituting the stack.

In the present invention, when a magnet for separating the blank material by magnetic force is attached to the front wall portion, when the blank material has magnetism such as an iron plate, the topmost blank in a non-contact manner The material can be separated, and the load on the push-up bar can be reduced.
Also, the top blank material of the stack can be separated from a stack in which a blank material having magnetism and a blank material not having magnetism are mixed.

In the present invention, when an air nozzle is provided on at least one side of the side wall portion to blow air between the blank material at the top of the stack and the blank material immediately below the blank material, Even when the oil film is in close contact with the oil film, the separation action can be facilitated by blowing air, and the push-up bar can turn up the blank material at the top of the stack more reliably.

In the present invention, since the first linear motion mechanism and the second linear motion mechanism are both air cylinders, the mechanism can be simplified and the maintenance work can be saved.

In the present invention, when the second linear motion mechanism is servo-driven, the flip-up operation can be started regardless of the contact position of the push-up bar with the blank material.

Since this invention is provided with the separation apparatus and the extrusion apparatus which has a press part for extruding the blank material arrange | positioned in the position which opposes in a horizontal direction, since the blank material of a stack | stuck top is formed in a predetermined position The push-up bar of the separator does not touch the blank material other than the blank material at the top of the stack, and only the uppermost blank material can be reliably turned up.

FIG. 1 is a perspective view showing a separation device. FIG. 2 is a cross-sectional view of the separation device taken along the front-rear direction including XX ′ in FIG. 1. FIG. 3 is an explanatory diagram showing a state before the end portion of the blank material is turned up in a state where no stepwise inclination is formed. FIG. 4 is an explanatory view showing a state after the end portion of the blank material is turned up without forming a step-like slope. FIG. 5 is an explanatory view showing a state before the end portion of the blank material is turned up with a step-like slope formed. FIG. 6 is an explanatory view showing a state after the end portion of the blank material is turned up with a stepped slope formed. FIG. 7 is a perspective view showing a guide plate. FIG. 8A to FIG. 8D are explanatory views showing examples of the trajectory of the push-up bar. FIG. 8A shows an example in which the first linear motion mechanism and the second linear motion mechanism are driven simultaneously, and the push-up bar advances obliquely upward. FIG. 8B shows an example in which the first linear movement mechanism is driven and the push-up bar moves forward, and then the second linear movement mechanism is driven and the push-up bar is raised. FIG. 8C shows an example in which the first linear movement mechanism and the second linear movement mechanism are simultaneously driven, and the push-up bar advances in a diagonally upward direction in a curved line. FIG. 8D shows an example in which the first linear movement mechanism 2 is driven and the push-up bar moves forward, and then the first linear movement mechanism and the second linear movement mechanism are driven and the push-up bar advances diagonally upward. FIG. 9 is a schematic side view for explaining the arrangement of the separation device, the stack, and the extrusion device. FIG. 10 is a side view for explaining a state in which the pressing unit of the extrusion device presses the blank material at the top of the stack and a plurality of blank materials below it at a stroke and protrudes in an inclined manner. FIG. 11 is a side view illustrating a state in which the push-up bar of the separation device is in contact with the blank material. FIG. 12 is a side view for explaining a state in which the push-up bar of the separating apparatus has turned up the blank material at the top of the stack. FIG. 13 is a top view schematically showing the arrangement relationship between the separation device and the extrusion device. FIG. 14 is a top view schematically showing the arrangement relationship between the separation device and the extrusion device. FIG. 15 is a top view schematically showing the arrangement relationship between the separation device and the extrusion device.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary.
In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.
Further, the positional relationship such as up, down, left and right is based on the positional relationship shown in the drawings unless otherwise specified.
Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

FIG. 1 is a perspective view showing the separating apparatus A. FIG.
FIG. 2 is a cross-sectional view of the separation apparatus A cut along a front-rear direction including XX ′ in FIG.
The separation apparatus A of the present invention is an apparatus for separating the uppermost blank material B1 from the blank material B1 directly below the stack B in which a plurality of blank materials B1 are stacked.

The separation device A includes a toothed portion 52 that is in contact with the blank material B1 and a push-up bar 5 that includes a base 51 that is continuous with the toothed portion 52, a first slider body 1 and a second slider body 9 that are provided on the base 51 The balance bar 3 having one end pivotally attached to the first slider body 1, the first linear motion mechanism 2 pivotally attached to the other end of the balance bar 3, and the second linear motion mechanism connected to the second slider body 9. 11 and a side wall 6 that pivotally supports the balance bar 3.
Further, a front wall portion 7 is provided at the front end of a pair of side wall portions 6 that pivotally support the balance bar 3 from both sides so as to straddle both side wall portions 6, and the front wall portion 7 separates the blank material B1 by magnetic force. A magnet 8 is built in and attached. An air nozzle (not shown) for blowing air between the blank material B1 at the top of the stack B and the blank material B1 immediately below it is provided outside the side wall portion 6.
In the present specification, the front side refers to the side facing the stack B of the separation device A, and the rear side refers to the opposite side.

One end of the balance bar 3 is pivotally attached to one end of the first linear motion mechanism 2, and the other end of the first linear motion mechanism 2 is fixed to the side wall portions 6 on both sides. The center of the balance bar 3 is pivotally supported by the side wall 6 and can be rotated.
The balance bar 3 is provided with a long hole-like balance bar hole 31 extending in the length direction thereof, and the base 51 of the push-up bar 5 is provided with a long hole-like base guide hole 51a extending in the length direction thereof. .

One side wall 6 is provided with a rectangular hole (not shown), and a rectangular guide plate 4 is attached so as to close the hole. The guide plate 4 is provided with a side wall guide hole 41 on a long hole extending in the front-rear direction.
The first slider body 1 is provided in front of the second slider body 9. The first slider body 1 is loosely inserted into the balance bar hole 31 and the side wall guide hole 41, and the second slider body 9 is loosely inserted into the base guide hole 51a.
Therefore, the first slider body 1 is guided along the side wall guide hole 41, and the second slider body 9 is guided along the base guide hole 51a.

As a result, the first slider body 1 and the second slider body 9 move stably, and even when the push-up bar 5 provided with these moves, the first slider body 1 and the second slider body 9 do not shake and are stable with respect to the blank material B1. Abut. Therefore, the end portion of the uppermost blank material B1 can be reliably lifted up and separated.

One end of the first linear motion mechanism is fixed to the side wall 6. The other end of the first linear motion mechanism 2 is pivotally attached to one end of the balance bar 3, and when the first linear motion mechanism 2 reciprocates in the front-rear direction, both ends of the balance bar 3 also move back and forth. Since the center portion of the balance bar 3 is pivotally supported by the side wall portion 3, the other end of the balance bar 3 moves to the opposite side to the end portion pivotally attached to the first linear motion mechanism 2. That is, the balance bar 3 performs a pivoting motion around the portion pivotally supported by the side wall portion 6.

The rotational movement of the balance bar 3 is converted into the reciprocating movement of the first slider body 1 without difficulty, and the movement of the balance bar 3 driven by the first linear motion mechanism 2 is transmitted to the push-up bar 5 described later.

Here, the push-up bar 5 includes a tooth portion 52 that is in contact with the blank material B <b> 1 and a base portion 51 that is continuous with the tooth portion 52. The base 51 is provided with a first slider body 1 and a second slider body 9.
The tooth portion 52 is detachable with respect to the base portion 51 and is provided in an obliquely upward direction from the front end of the horizontally extending base portion 51 so that the upper side is the front side and the lower side is the rear side. Is formed in a substantially L-shape. That is, the surface of the tooth part 52 is in an inclined state. The tooth portion 52 is provided with serrated teeth, and the tooth pitch is set to be smaller than the thickness of the blank material B1 as a target.
When the tooth portion 52 of the push-up bar 5 is detachably attached to the base portion 51, it can be replaced when the tooth of the tooth portion 52 is worn out.

As described above, the base guide hole 51a is provided in the base 51 of the push-up bar 5, and the second slider body 9 is loosely inserted into the base guide hole 51a.
The second linear motion mechanism 11 is attached to the second slider body 9 and moves the second slider body 9 up and down. Thereby, the front side of the base 51 to which the second slider body 9 is attached is lifted, and the base guide hole 51a is directed from the front-rear direction to the vertical direction. At this time, since the second slider body 9 driven by the second linear motion mechanism 11 moves inside the base guide hole 51a, it does not hinder the forward / backward movement of the push-up bar 5 by the first linear motion mechanism 2. .
When the second linear motion mechanism 11 moves the second slider body 9 up and down, the blank material turning-up operation can be actively started regardless of the contact position of the push-up bar 5 with respect to the blank material B1.

Both the first linear motion mechanism 2 and the second linear motion mechanism 11 described above are driven by an air cylinder. As a result, the mechanism can be simplified and the maintenance work can be saved.
The second linear motion mechanism 11 is a power mechanism using a servo motor other than an air cylinder. In this case, a ball screw or a rack and pinion can be used as the power mechanism. Thereby, regardless of the contact position of the push-up bar 5 with respect to the blank material B1, and without applying an excessive load to the push-up bar 5, the turning-up operation of the blank material B1 can be started or stopped positively and accurately. .

3 to 6 are explanatory views showing the relationship between the tooth portion 52 and the blank material B1.

FIG. 3 is an explanatory diagram showing a state before the end portion of the blank material B1 is turned up in a state in which the blank material B1 does not form a step-like slope.

FIG. 4 is an explanatory view showing a state after the end portion of the blank material B1 is turned up without forming a step-like slope.
Thus, the state in which the blank B1 does not form a step-like inclination is a case where the extrusion device C located at the opposite positions is not used.

When the push-up bar 5 moves, the serrated tooth portion 52 turns up the end portion of the blank material B1.
In this case, the tooth tip of the tooth portion 52 acts to slightly bite into the end surface of the blank material B1 or to push up the end surface by friction between the tooth tip and the end surface of the blank material B1.
As a result, the end portion of the blank material B1 is turned up.
Further, since the serrated teeth are formed in a certain region, even if the position where the push-up bar 5 abuts on the uppermost blank material B1 is shifted upward from the target position, the blank material B1 is surely secured. Can be turned up.

FIG. 5 is an explanatory diagram showing a state before the end portion of the blank material B1 is turned up in a state where the blank material B1 forms a step-like slope.

FIG. 6 is an explanatory diagram showing a state after the end portion of the blank material B1 is turned up with a stepped slope formed.
Also in this case, the tooth tip of the tooth portion 52 acts to slightly bite into the end surface of the blank material B1 or to push up the end surface by friction between the tooth tip and the end surface of the blank material B1.
Or the tip of a tooth may act so that it may put up and push up the end part of the blank material B1 of the top sheet.
As a result, the end of the blank material B1 is turned up.

Compared with the case of said FIG.3 and FIG.4, the end surface of the stack | stuck B forms the step-like inclination by being pressed by the extrusion apparatus C. FIG. As a result, the uppermost blank B1 protrudes most, so that the tooth portion 52 does not touch the blank B1 other than the uppermost blank, and only the uppermost blank B1 can be reliably turned up. it can.
Since the serrated teeth of the tooth portion 52 are formed in a certain area, the blank material B1 at the top of the stack can be turned up.
Further, since the second linear motion mechanism 11 moves the push-up bar 5 up and down, for example, as shown by a two- dot chain line in FIG. 3, the push-up bar 5 is displaced upward and comes into contact with the stack B. Even if the contact position with respect to B1 is shifted downward, the turning-up operation can be started reliably.

The side wall part 6 protects the internal parts by sandwiching the above-mentioned members between the left and right sides.

FIG. 7 is a perspective view showing the guide plate 4.
The guide plate 4 is detachable from the side wall portion 6, and a side wall guide hole 41 is formed in the horizontal direction.
A screw hole for attaching the guide plate 4 to the side wall portion 6 is provided, and the guide plate 4 can be attached to the side wall portion 6 using a bolt in the screw hole.
Therefore, the guide plate 4 can be removed from the side wall portion 6 by removing the bolt, and can be easily replaced with the guide plate 4 having the side wall guide holes 41 having different shapes.
Thereby, the separating apparatus A can change the movement (that is, the trajectory) of the push-up bar 5 and can cope with the blank material B1 having a different thickness, shape, and material.

As described above, when the first linear motion mechanism 1 is driven, the balance bar 3 is rotated. At this time, the first slider body 1 loosely inserted in the balance bar hole 31 moves back and forth by the rotation of the balance bar 3. That is, the drive of the first linear motion mechanism 1 is transmitted to the first slider body 1 via the balance bar 3. Thereby, the push-up bar 5 to which the first slider body 1 is attached moves back and forth. Since the first slider body 1 is guided by the balance bar hole 31 and the side wall guide hole 41, the movement of the push-up bar 5 by the first linear motion mechanism 2 is not hindered. At this time, the first slider body 1 is supported by a bearing (not shown), and rotates inside the balance bar hole 31 and the side wall guide hole 41. Thereby, the movement of the 1st slider body 1 is performed smoothly.
Similarly, when the second linear motion mechanism 11 is driven, the second slider body 9 moves up and down. Thereby, the push-up bar 5 to which the second slider body 9 is attached moves up and down. Since the second slider body is guided by the base guide hole 51a, the movement of the push-up bar 5 by the second linear motion mechanism 11 is not hindered. At this time, the second slider body 9 is supported by a bearing (not shown), and rotates inside the base guide hole 51a. Thereby, the movement of the 2nd slider body 9 is performed smoothly.
Due to the combination of the movements of the first linear movement mechanism 2 and the second linear movement mechanism 11, the push-up bar 5 performs a specific movement.
For example, when the first linear motion mechanism 2 and the second linear motion mechanism 11 are driven simultaneously, the push-up bar 5 moves diagonally forward and upward, and thereafter, only the first linear motion mechanism 2 is driven forward. Move horizontally.
Further, by driving the first linear motion mechanism 2 and the second linear motion mechanism 11 in the reverse order, the push-up bar 5 moves to the original position.
As described above, the movement of the push-up bar 5 can be easily changed by exchanging the guide plate 4 having the side wall guide holes 41.

Here, the movement of the push-up bar 5 will be further described. When the first linear motion mechanism 2 is driven, the first slider body 1 moves via the balance bar 3 as described above, and the push-up bar 5 to which the first slider body 1 is attached moves forward.
Thereafter, the push-up bar 5 is lifted by the second linear motion mechanism 11.
At this time, the drive of the push-up bar 5 by the first linear motion mechanism 2 and the drive of the push-up bar 5 by the second linear motion mechanism 11 may be performed simultaneously or at different timings.
The push-up bar 5 moved forward and upward by the first linear motion mechanism 2 and the second linear motion mechanism 11 contacts the blank material B1.
At this time, the tooth portion 52 of the push-up bar 5 acts to turn up the end portion of the blank material B1.

The degree of freedom of movement of the tooth portion 52 of the push-up bar 5 can be increased by taking the timing of both.
FIG. 8A to FIG. 8D are explanatory views showing examples of the trajectory of the push-up bar 5. FIG. 8A shows an example in which the first linear motion mechanism 2 and the second linear motion mechanism 11 are driven simultaneously, and the push-up bar 5 advances obliquely upward. FIG. 8B shows an example in which the first linear movement mechanism 2 is driven and the push-up bar 5 moves forward, and then the second linear movement mechanism 11 is driven and the push-up bar 5 is raised. FIG. 8C shows an example in which the first linear movement mechanism 2 and the second linear movement mechanism 11 are simultaneously driven and the push-up bar 5 advances in a diagonally upward direction in a curved line. In FIG. 8D, the first linear movement mechanism 2 is driven and the push-up bar 5 moves forward, and then the first linear movement mechanism 2 and the second linear movement mechanism 11 are driven and the push-up bar 5 moves forward obliquely upward. An example is shown. Each is a cross-sectional view taken along the front-rear direction including XX ′ in FIG. 1.

Thereby, the blank material B1 at the top of the stack in contact with the tooth portion 52 of the push-up bar 5 is surely turned up.
Incidentally, an air nozzle (not shown) is provided on the side wall 6 so as to open forward.
This air nozzle blows high-pressure air between the uppermost blank material B1 and the blank material B1 immediately below the uppermost blank material B1 when the separation device A of the present invention rolls up the uppermost blank material B1 from the stack B.

Thereby, even when the blank materials are in close contact with the adhered oil or the like, the separation action can be assisted by blowing air, and the push-up bar 5 can more reliably lift the blank material B1 at the top of the stack. .
A front wall portion 7 is provided at the front end of the side wall portions 6 so as to extend over the two side wall portions 6.
In the center of the front wall portion 7, a penetrating portion 10 is provided for the push-up bar 5 to pass through the front wall portion 7.
The push-up bar 5 normally stands by behind the front wall portion 7 and moves forward through the through portion 10 when necessary.

FIG. 9 is a schematic side view for explaining the arrangement of the separation device A, the stack B, and the extrusion device C.

The stack B is formed by stacking the blank material B1 on the seating surface of the lifter L that can move up and down.
The blank B1 separated by the separation device A is gripped by a transport device having a suction cup or the like and transported to another place (next step).
As described above, the lifter L has a case where the entire stack is lifted every time one blank material B1 is picked up, and a case where a lifter L is lifted by the number of sheets each time a plurality of lifters L are picked up.
In the former case, every time the uppermost blank material B1 is transported, the entire stack rises by the thickness of the transported blank material B1, so that the topmost blank material B1 always has the same height.
Therefore, the push-up bar 5 of the separating apparatus A can always turn up the blank material B1 at the top of the stack at a constant position in the vertical direction, and the separation performance becomes uniform.

By the way, the outer edge of the stack B is supported by a plurality of positioning pins.
Thereby, blank materials do not shift in the horizontal direction, and the stack B is always in a stable state.
In addition, by appropriately adjusting the position of the positioning pin, it is possible to deal with a stack B made of blank material B1 having a different size or an amorphous blank material B1.

The separation device A of the present invention may be used alone or may be used together with the extrusion device C.
A device having the separation device A and the extrusion device C is a separation system.

In the separation system, the separation device A and the extrusion device C are arranged to face each other with the stack B interposed therebetween.
In this case, the separating device A is arranged so that the push-up bar 5 faces the stack B. Similarly, the pushing device C on the opposite side through the stack B has the pressing portion C1 facing the stack B. Placed in.

The extrusion device C includes a pressing portion C1 that reciprocates in the horizontal direction and presses the end portions of a plurality of blank materials B1 at the top of the stack.
The pressing portion C1 has an inclination in which the upper side protrudes toward the stack side and the lower side recedes from the stack side.
In the extrusion apparatus C, the pressing portion C1 presses the blank material B1 at the top of the stack and the plurality of blank materials B1 below it at once, thereby shifting their end portions. By providing the extrusion part C1 with an inclination, the plurality of blank materials B1 whose end parts are shifted protrude toward the separating device A as the upper part of the stack and form a step-like inclination. Thereby, the uppermost blank B1 is pushed out so as to protrude most toward the separating device A side.

Here, the movement of the push-up bar 5 of the separation device A and the pressing portion C1 of the extrusion device C will be described.
FIG. 10 is a side view illustrating a state in which the pressing portion C1 of the extrusion device C presses the blank material B1 at the top of the stack and a plurality of the blank materials B1 below it at a time and protrudes so as to be inclined stepwise. FIG. Sectional drawing cut | disconnected by the surface of the front-back direction containing XX 'in FIG. 1 is shown.
It is a previous stage until the push-up bar 5 of the separating device A comes into contact with the blank material B1, and the pressing part C1 of the extrusion device C advances to separate the uppermost blank material B1 and the blank material B1 directly below the separating device. This is a state in which a step-like slope is formed by extruding to the A side.
In this case, the push-up bar 5 moves backward and is in a standby state. Since the first slider body 1 is loosely inserted into the balance bar hole 31 and the side wall guide hole 41 and the second slider body 9 is loosely inserted into the base guide hole 51a, there is play in the movement of the push-up bar 5. In the standby state, the front side is in a lowered state. As a result, the push-up bar 5 can come into contact with the blank material B1 obliquely downward.

FIG. 11 is a side view illustrating a state in which the push-up bar 5 of the separation device A is in contact with the blank material B1. The side surface which removed the near side wall part 6 is shown.
This is a stage after the pressing by the pressing portion C1 of the extrusion device C is completed, and this time the push-up bar 5 of the separation device A moves obliquely upward and comes into contact with the uppermost blank material B1. The pressing part C1 of the extrusion device C stops and is at the same position.
Note that the uppermost blank B1 is located within a range where the sawtooth teeth of the tooth portion 52 are formed.

FIG. 12 is a side view illustrating a state in which the push-up bar 5 of the separating apparatus A has turned up the blank material B1 at the top of the stack. The side surface which removed the near side wall part 6 is shown.
The push-up bar 5 moves obliquely upward and acts to turn up the uppermost blank material B1. At this time, the first linear motion mechanism 2 moves the push-up bar 5 forward, and the second linear motion mechanism 11 moves the push-up bar 5 upward.
Since the push-up bar 5 acts only on the uppermost blank B1, the extra weight is not added and the energy efficiency is high.
The pressing part C1 of the extrusion device C stops and is at the same position.

Thus, the blank material B1 at the top of the stack can be efficiently separated while the separation device A and the extrusion device C cooperate.

13 to 15 are top views schematically showing the positional relationship between the separation device A and the extrusion device C. FIG.
In the separation system shown in FIG. 13, one separation device A and one extrusion device C facing each other across the stack B are used as a pair.

Further, in the separation system shown in FIG. 14, a pair of one extrusion device C facing one separation device A, and a pair of one extrusion device C facing one separation device A in reverse arrangement, Two pairs in total are arranged.
Thereby, it is possible to switch the side (left and right in the figure) where the separating apparatus A turns up the blank B1.

Further, the separation system shown in FIG. 15 is configured such that one pair of extrusion devices C facing the separation device A is arranged in two pairs in the front and rear, and two pairs in the left and right.
The blank material B1 can be turned up from either the front-rear direction or the left-right direction.
As a result, it is possible to sufficiently cope with lot change and change in the conveyance direction.

The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment.

For example, it is also possible to provide a left-right symmetrical structure in which the guide plates 4 are provided on the side wall portions 6 on both sides, the balance bar 3 is paired, and the push-up bar 5 is sandwiched from both sides.
As a result, the movement of the push-up bar 5 becomes more stable.
Further, the first slider body 1 and the second slider body 9 may slide without rotating as long as they do not hinder movement.

According to the present invention, only the uppermost blank B1 can be separated and reliably and efficiently turned up.
The present invention is applicable when the workpiece to be processed is a plate material and is in a stacked state, and is widely useful in a separation process of plate material processing including press working.

A ... Separator 1 ... 1st slider body 2 ... 1st linear motion mechanism 3 ... Balance bar 31 ... Balance bar hole 4 ... Guide plate 41 ... Side wall guide hole 5 ... Push-up bar 51 ... Base 51a ... Base guide hole 52 ... Tooth part 6 ... Side wall part 7 ... Front wall part 8 ... Magnet 9 ... Second slider body 10 ... Penetration part 11 ... Second linear motion mechanism B ... Stack B1 ... Blank material C ... Extrusion device C1 ... Pressing part L ... Lifter

Claims

A separation device for separating the uppermost blank material from the blank material immediately below it from a stack in which a plurality of blank materials are stacked,
A push-up bar consisting of a tooth part abutting on the blank material and a base part continuing to the tooth part;
A first slider body and a second slider body provided on the base;
A balance bar having one end pivotally attached to the first slider body;
A first linear motion mechanism pivotally attached to the other end of the balance bar;
A second linear motion mechanism connected to the second slider body,
The first slider body is moved back and forth by the first linear motion mechanism, and the second slider body is moved up and down by the second linear motion mechanism, so that the push-up bar becomes the end of the uppermost blank material. Separation device that lifts the part.
It further comprises a side wall for pivotally supporting the balance bar,
The balance bar is provided with a long hole-like balance bar hole,
The side wall portion is provided with an elongated hole-shaped side wall guide hole,
The base is provided with a slot-like base guide hole,
The first slider body is loosely inserted into the balance bar hole and the side wall guide hole,
The second slider body is loosely inserted into the base guide hole,
The first slider body is guided back and forth along the side wall guide hole,
The separation apparatus according to claim 1, wherein the second slider body is guided up and down along the base guide hole.
The side wall is provided with a guide plate that is detachably attached,
The separation apparatus according to claim 2, wherein the side wall guide hole is provided in the guide plate.
A front wall is provided in front of the side wall,
The separation device according to claim 2 or 3, wherein a magnet for separating the blank material by magnetic force is attached to the front wall portion.
The air nozzle for blowing air between the blank material at the top of the stack and the blank material immediately below the blank material is provided on at least one side of the side wall portion. Separation equipment.
The separation apparatus according to any one of claims 2 to 5, wherein both the first linear motion mechanism and the second linear motion mechanism are air cylinders.
The separation device according to any one of claims 2 to 5, wherein the second linear motion mechanism is servo-driven.
A separation apparatus according to any one of claims 1 to 7 and an extrusion apparatus having a pressing portion for extruding the blank material in a horizontal direction,
The separation device and the extrusion device are arranged at positions facing each other with a blank material interposed therebetween,
The separation system in which the pressing portion is configured such that a contact surface with respect to the blank material is inclined from the lower part to the upper part to the stack side.