JPS63212022A - Transfer device for thin steel plate stock - Google Patents

Abstract

PURPOSE:To perform the change in the direction of a work and its reverse in a lump by reversing the specific blank of continuously blanked blanks, changing the direction of the specific blank, piling up by arranging it on a pallet and transferring it to the next press stage. CONSTITUTION:The work W2 necessary for reversing among the blank stock W continuously blanked by a blanking machine 2 is reversed by transferring to a rotary magnetic force conveyor 5 from the ascending position of a delivering conveyor 3. The reversed work W2 is piled up on a 1st pallet P of a transfer conveyor 7 and the work W1 unnecessary for reversing is piled up on a 2nd pallet P of the conveyor 7 directly from the descending position of the conveyor 3. The work W necessary for direction change is received on the pallet P3 of a side piler conveyor 8 from the blanking machine to change the direction by a horizontal rotary conveyor 10. The transfer device performing the direction change and reversing of the work in a lump can thus be realized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a conveying device for a thin steel plate blank material punched from a thin coil material or the like.

(Prior art) When punching a blank material for press processing (hereinafter referred to as a workpiece) from a coil material of a thin steel plate, the workpieces (hereinafter referred to as workpieces) are punched in the same direction one after another as shown in FIG. When punching out material for automobile side panels, or when punching out coil material without waste, the first
As shown in Figure O, there are cases where workpieces with different orientations of <180 degrees are punched out.

When carrying the above-mentioned workpieces to the next press machine for draw (squeezing) processing, the drawing direction of the workpieces (for example, punch up, die down, etc.) is common for workpieces such as those for the side panels of automobiles. Therefore, it is necessary to turn one of the two workpieces upside down as shown in FIG. 9(c), and only then can a pair of side panels be formed. Furthermore, as shown in FIG. 10, works whose orientations differ by <180 degrees must be conveyed into the press with their orientations aligned.

Some of the workpieces that have been punched out as described above need to be turned inside out for the sake of the next press working, and some of the workpieces need to be oriented in the same direction as other workpieces.

Here, as a conventional technique for aligning the orientation of the workpiece, there is a technique shown in Japanese Utility Model Publication No. 14432/1983.
In this method, as shown in FIG. 10, workpieces punched in different directions by 180 degrees are sequentially turned in the same direction and sent one by one to the next process such as press working on a conveyor. In addition, there is a conventional technique for turning a workpiece inside out, as disclosed in Japanese Patent Application Laid-Open No. 49-25582, but this involves stacking a plurality of punched workpieces with their orientations aligned, and then turning the workpieces inside out at once. It is intended to be reversed.

(Problems to be Solved by the Invention) Among the above conventional techniques, the one in which the orientation of the workpieces is aligned one by one and the workpieces are sent one by one on a conveyor is as follows:
Changing the direction of the workpiece is complicated and takes time, and the workpiece cannot be fed in proportion to the pressing speed of the press machine in the next process, forcing the press machine to operate with idle time. There was also a problem in terms of work efficiency.

In addition, when a certain amount of workpieces are turned over at once, the weight of the workpiece increases and the size of the turning device becomes larger, and the workpiece may become loose when it is turned over, and it is necessary to firmly clamp the workpiece to prevent the workpiece from falling apart. However, this has caused problems such as deformation of the workpiece.

Furthermore, in the prior art, there is no device that can change the orientation of a workpiece and turn it over with a single device.

The present invention has been made to solve the above-mentioned problems, and its purpose is to change the direction of the workpiece and turn it over with one device, and also to turn over the workpieces one by one and turn them over. This is to reduce the size of the device, and further,
A thin steel sheet designed to increase the work efficiency of the press machine by sending multiple workpieces stacked on a pallet in the same direction to the press machine for the next process, and to change the orientation of the workpieces all at once by rotating the pallet. To provide a material conveying device.

(Means for solving the problem) A means for solving the above problem is a conveying device that continuously punches a blank material from a thin steel plate using a blanking machine and sends the blank material to a press machine for the next process. The blank material delivery conveyor is provided on one delivery side of the blanking machine and is movable up and down at the terminal end, and the blank material delivery conveyor is connected to the upper moving position of the delivery conveyor, and the blank material is transferred to a cylindrical drum through a magnet. a rotating magnetic conveyor that rotates the blank material from above to below and turns it over; , a first transport conveyor that continuously receives a certain amount of blank materials directly from the delivery conveyor to a second pallet at a lowering position of the delivery conveyor and conveys the first or second pallet to a predetermined location; , which is provided on the other delivery side of the blanking machine, receives a predetermined amount of blank materials that are continuously punched out onto a third pallet, and
A second conveyor conveying the pallets on a separate line is provided at the confluence of the first and second conveyors,
rotating a predetermined one of the first to third pallets;
The thin steel sheet material conveying device is constructed from a horizontal rotary conveyor that changes the direction of the blank material.

(Function) First, a case will be described in which a blank material (hereinafter referred to as a work) that is continuously punched out by a blanking machine is divided into those that are turned over and those that are not turned over and transported. Works that need to be turned over are conveyed from the lower moving position of the delivery conveyor to the rotating magnetic conveyor, where they are attracted by the magnets of the rotating magnetic conveyor, rotated from above to below, and turned over. The turned-over workpieces fall onto the first pallet below and are stacked, and are transported by the first conveyor to the fireworks via the horizontal rotary conveyor.

Works that do not need to be turned over are stacked directly on the second pallet on the first conveyor at the lowering position of the delivery conveyor, and are conveyed to the next process.

Next, a case will be described in which workpieces having different orientations are aligned alternately. In this case, one workpiece that requires a direction change is received from another discharge side of the blanking machine in alignment on a third pallet on a second conveyor, and the pallet is rotated on a horizontal rotary conveyor. The orientation of the workpieces is determined at once and transported to the next process. The other workpiece, which does not require a change in orientation, is directly loaded onto the second pallet on the first conveyor from the lower position of the delivery conveyor, and is conveyed to the next process via the horizontal rotary conveyor.

It goes without saying that the orientation of the work can also be changed for the work delivered to the delivery conveyor.

(Embodiment) Next, a preferred embodiment of the present invention will be described in detail with reference to the attached FIGS. 1 to 10. FIG. ) is subjected to the following press processing,
That is, it shows a plan view of a conveyance device, etc. that turns over or changes the orientation of a work when conveying it to a draw process or the like.

Among the devices shown in the lower part of FIG. 1, there is a coil line 1 that supplies a raw steel plate from a thin steel plate coil, a blanking press 2 that punches the raw steel plate supplied from the coil line 1 into a predetermined shape, The punched workpiece W
Those that need to be turned over (for example, (C) in Figure 9)
The workpiece W2 shown in FIG. 9) or the workpiece W1 shown in FIG.

A discharging conveyor 3 is provided, in which the terminal end 3a moves up and down to select whether or not to turn over the work while taking out the work (such as the work W4 in FIG. 10) from one side of the blanking press 2. A rotating magnetic conveyor 5 receives the work W from the payout conveyor 3 via the upper conveyor 4 and turns over the work W, and a rotating magnetic conveyor 5 receives the work W directly from the rotating magnetic conveyor 5 or the payout conveyor 3 and transfers the work W to each pallet PI, An electromagnetic conveyor 6 (not shown in FIG. 1) that loads a plurality of pallets in the same direction on P2, and the pallet P2.
It consists of a pallet transport conveyor 7 etc. that transports I and P2.

Further, the device disposed from the center to the upper part in FIG. 1 of this device is disposed on the other workpiece W discharging side of the blanking press 2, and is disposed on the other workpiece W dispensing side of the blanking press 2, such as a workpiece W that requires direction change (for example, in FIG. 10). A plurality of workpieces W3, etc.) are stacked in the same direction onto a pallet P3 via a shooter (not shown), etc., and the pallet P3 is conveyed to a conveyor 9 for the next relay. Pallets PI, P2°P3 are received from the conveyor 9 and the pallet transport conveyor 7, and the pallets Pi, P2. A horizontal rotary conveyor 10 that rotates a predetermined one of P3 to collectively change the orientation of a plurality of works W...; and pallets from the horizontal rotary conveyor 10) Pi, P2. It consists of a conveyor 11 etc. that sends P3 to the next process.

Here, among the works W conveyed by the delivery conveyor 3, those that do not need to be turned over do not require a direction change, but the work W that requires a direction change may also be used.However, in this case, the side piler conveyor 8 The workpiece W delivered to the side may not require a direction change. That is, for the workpieces W whose orientations alternately change as shown in FIG. The change may be made on the horizontal rotary conveyor 10.

Next, a delivery conveyor 3, an upper conveyor 4, a rotating magnetic conveyor 5, an electromagnetic conveyor 6, and a pallet conveyor 7.
These will be explained in more detail with reference to FIGS. 2 to 5.

The delivery conveyor 3 is a conveyor made of an endless belt or the like, and the lower part of the conveyor main body 3C is pivotally supported by two vertically moving cylinders 16, 17 with the front terminal end 3a tilted upward. and two vertical cylinders 16.
17, the terminal end 3a is tilted downward around the terminal end 3b, and can be positioned in a horizontal state. The upper conveyor 4 is an endless conveyor supported diagonally upward via a support frame 14 etc.
The conveyance line is connected in a straight line at A, and the terminal end 4a
is arranged tangentially above the rear part of the rotating magnetic conveyor 5.

The rotating magnetic conveyor 5 includes a support shaft 30 that is fixed to support stands 18 and 18 that are supported on the left and right sides of the stand 15;
0 to the arm member 31. ... a semi-cylindrical inner drum 32 with an arcuate portion facing forward, and a steel plate cylinder disposed outside the inner drum 32 and rotatable around the spindle 30. shaped outer drum 33 and inner and outer drums 32
．． It consists of magnets 34 (permanent magnets or electromagnets can be used) arranged in a semicircular shape at a predetermined pitch on the inner drum 32 side between 33 and 33, and the chain 36 and sprocket 37 are driven by the drive source 35 on the mount 15. Outer drum 32 via etc.
can rotate around the spindle 30.

That is, since the rotating magnetic conveyor 5 rotates counterclockwise in FIG.
4, it is attracted to the outer cylindrical drum 33 and rotated, and its front and back sides are reversed.

A short horizontal roller conveyor 80 is disposed below the rotary magnetic conveyor 5 and behind the break in the magnet 34, and above the rear end of the roller conveyor 80 and below the upper conveyor 4, it is aligned with the roller conveyor 80. Front and rear horizontal electromagnetic conveyors 6 are arranged so as to partially overlap each other. The electromagnetic conveyor 6 consists of two rotary drums 40, 40 arranged one behind the other below the upper beam 14a of the support frame 14, and a plurality of endless metal belts 41. . . . Each belt 41. . . , from the upper beam 14b of the support frame 14 to the support member 42.
An electromagnet 43 fixed via... ... are arranged in front and behind the entire length of the electromagnetic conveyor 6. Therefore, from the lower part of the rotating magnetic conveyor 5 to the o-5-conveyor 80
The workpiece W conveyed via this electromagnetic conveyor 6
electromagnet 43. ... via the metal belt 41. ...
When the workpiece W is sucked and supported downward by the electromagnetic conveyor 6, the electromagnetic conveyor 6 stops, and the electromagnetic force is demagnetized to move the workpiece W to the lower pallet (P).
The workpieces W are dropped onto the IF and stacked on the pallet Pl in the same direction.

Below this electromagnetic conveyor 6 are front and rear stoppers 19, 19 and left and right stoppers 20, which position the falling work W. ... is arranged, front and rear strikes / par 19.19
are positioned by moving toward or away from each other along the rail 21 on the upper beam 14a of the support frame 14 by a stopper adjustment motor 22, and position the work W front and back. ... is fixed to the lower extension part of the upper beam 14b of the support frame 14, and the work W
This is to position the workpiece W from side to side, and to position the workpiece W while it is falling.

Further, the rear end 6a of the electromagnetic conveyor 6 and the terminal end 3a of the delivery conveyor 3 are connected in close proximity at the horizontal position IIB, and the lower surface of the belt 42 of the electromagnetic conveyor 6 and the upper surface of the belt of the delivery conveyor 3 are arranged in a substantially straight line, so by rotating the electromagnetic conveyor 6 in the opposite direction to that described above, the work W sent from the delivery conveyor 3 is transferred to the bell) 41. through the electromagnets 43. ... is sucked and supported downward, moves forward, falls onto another barre (P2) below the electromagnetic conveyor 6, and is similarly loaded. That is, among the works W transported by the delivery conveyor 3, those that do not need to be turned over are loaded from this horizontal position B onto a predetermined barre P2 by the electromagnetic conveyor 6.

The pallet transport conveyor 7 is a roller conveyor arranged vertically movably below the electromagnetic conveyor 6, and transports the upper pallet Pl or P2 toward the horizontal rotary conveyor 10. Pallet conveyor 7 is bit 1
It is vertically movable by a lifter 50 disposed inside the pallet 3, which is used to load the workpieces W onto the pallet P between the uppermost workpiece W on the pallet P and the electromagnetic conveyor 6. This is intended to prevent the workpiece W from shifting due to falling by keeping the distance constant. When a pallet P loaded with a predetermined amount of workpieces W is carried out to the horizontal rotary conveyor 10, and when an empty pallet P is carried in, the pallet conveyor 7 is moved up to the height of the adjacent conveyor as shown in FIG. descend. Note that 51 is a drive motor for a pallet transport conveyor, and 23 is a conveyor that carries an empty pallet P to the pallet transport conveyor 7.

Next, the horizontal rotary conveyor 10 and the elevating conveyors 12, 12, 12, etc. provided on the left and right sides thereof are shown in FIGS. 6 to 8.
This will be explained in more detail with reference to the drawings.

The horizontal rotary conveyor 10 has a square planar shape, and the center portion of its lower surface is supported by a rotary table 24.
A rotating shaft 24a of the zero-rotation table 24, which is horizontally rotatable, is pivotally supported by a bearing 25 set up in the bit 13, and a large gear 26 fixed to the rotating shaft 24a is
It is horizontally rotated by a small gear 2B rotated by a drive source 27 via a bevel gear or the like. Further, on the circular rail 29 supported and fixed on the bit 13, a roller 62 is mounted.
The main body of the horizontal rotary conveyor 10 is supported through... Therefore, the horizontal rotary conveyor 10 can rotate the pallet P placed on the upper part by the rotation of the drive source 27, and can change the orientation of the works W, . . . by a predetermined angle with respect to the conveyance direction C in FIG. It looks like this.

Now, the horizontal rotary conveyor 10 includes a roller conveyor 60 and two belt conveyors 61.61 that can convey pallets P in a direction perpendicular to the roller conveyor 60. Although the roller conveyor 60 is located below the pallet P and is not involved in the conveyance of the pallet P, the pallet P can be conveyed by the downward movement of a roller conveyor 60 that is movable up and down. Incidentally, both the roller conveyor 60 and the belt conveyor 61°61 can be reversed.

That is, the workpieces W, .
1, it is delivered in the C direction, and the horizontal rotating conveyor 1
By the 180 degree rotation of 0, the orientation of the works W, . In addition, the workpiece W,... from the direction shown in Fig. 7
The same is true for the case where the material is carried in and carried out in the C direction.

Here, since the horizontal rotary conveyor lO has a square shape, its corner portions 10a, . . . will interfere with adjacent conveyors during rotation. Freely movable conveyor 12,1
2.12 is installed. That is, the horizontal rotary conveyor 10
When rotating, the lifting conveyor 12. ... is lowered by the lid 70 in the bit 13 as shown in FIG.
Its upper surface is located below the main body of the horizontal rotary conveyor 10 to avoid interference with the horizontal rotary conveyor 10. Then, the horizontal rotary conveyor 10 is set at a predetermined angle (however, it is a multiple of 90 degrees)
When rotated, the elevating conveyors 12, 12° 12 rise, allowing the pallet to be transferred to and from the horizontal rotary conveyor 10, and the pallet P is conveyed via the conveyor 11 to the next press working process.

Next, the overall operation of the device will be described.

First, the punched workpiece W as shown in Fig. 9(a) is
Let us consider the case where the sheet is transported to the next process in the state shown in (C), and the case where the sheet is turned upside down and transported to the next process in the state shown in (C). In this case, a predetermined amount of workpieces W (in this case 34 out of all the workpieces W),
... are first conveyed continuously in state (C), and then the rest are continuously conveyed in state (b).

When conveying in the state shown in FIG. 9(c), the plan, the work W punched out by the king press 2, etc. are transferred by the rotating magnetic force via the upper conveyor 4 to the payout conveyor 3 located at the upward tilted position A. The workpiece W is carried onto the conveyor 5, turned over, and passed through the electromagnetic conveyor 6.

... are stacked on the pallet Pl on the pallet conveyor 7 in the same direction. When a predetermined amount of works W, .
The pallet loaded with the works W, .

In addition, when conveying the workpieces W, . . . in the state shown in FIG. 9(b), the workpieces W, . The workpiece W is placed on the pallet P2 below from the conveyor 6.
・Align and load in the same direction. From then on, see Figure 9 above (
This is exactly the same as when the workpiece W is transported in the state c). Furthermore, (b).

When conveying in the state of (C), there is no need to change the orientation of the workpiece W, so there is no need to rotate the horizontal rotary conveyor IO.

Next, as shown in FIG. 10, the workpieces W3 are punched out in different directions by 180 degrees. Consider the case where W4 is transported to the next process with the same orientation. In this case, workpiece W3 is
Let us consider the case of aligning to the direction 4.

Among the works W punched out by the blanking press 2, the work W4. ... are delivered to the delivery conveyor 3, and the work W3. ... are stacked on the pallet P3 on the side piler conveyor 8 in the same direction via a shooter or the like (not shown). The pallet P3 is carried onto the horizontal rotary conveyor 10 via the relay conveyor 9 and the like.

In this case, the roller conveyor 60 of the horizontal rotary conveyor lO
is descending, so pallet P3 is on the belt conveyor 61
．． It was brought in at 61. And this palette P3 is 18
The workpiece W3 is rotated 0 degrees to align the direction of the workpiece W4, but in this case, the elevator conveyors 12, 12, 12 adjacent to the horizontal rotary conveyor 10 are lowered. As the conveyors 12, 12° 12 rise, the roller conveyor 60 also rises, and the pallet P3 is transported to the roller conveyor 6.
0, the tray is transferred to the next conveyor 11.

Work W4 delivered to the delivery conveyor 3.・・・
. is delivered to the electromagnetic conveyor 6 at the horizontal position B of the delivery conveyor 3, but the following is the same as when the works W, . . . are transported in the state shown in FIG. 9(b).

Although the workpiece W delivered to the delivery conveyor 3 side was not changed in orientation, it is of course possible to change the direction, and the workpiece W delivered to the side piler conveyor 8 side is not changed.
Of course, depending on the situation, the direction may not need to be changed. In addition, in this embodiment, the direction of the workpiece W is changed by 90 degrees.
The angle is limited to an integral multiple of 90 degrees such as 180 degrees, 270 degrees, etc., but is not limited to this as long as the horizontal rotary conveyor 10 is made into another polygon and a conveyor corresponding to this is provided.

(Effects of the Invention) As is clear from the above, according to the present invention, a predetermined blank material that has been continuously punched out is turned over, the orientation of the predetermined material is changed, and the blank materials are arranged on a pallet. Since the blank materials can be piled up and transported to the next press step, the blank materials can be easily handled in the next step and work efficiency can be increased.

In addition, since the blank materials are turned over one by one, this turning operation is easy, and a small turning device can be used.Furthermore, it is possible to distinguish between items that need to be turned over and those that are unnecessary. Since the items can be aligned and stacked on the pallet only by vertical movement of the delivery conveyor, the entire device is small and compact.

Further, since the direction of the blank material can be changed all at once by rotating the pallet, the work is simplified and the work time can be shortened.

[Brief explanation of the drawing]

Figure 1 is an overall plan view of the device, Figure 2 is a side view of Figure 1, Figure 3 is a partially enlarged view of Figure 2, Figure 4 is a front view of Figure 3, and Figure 5 is a side view of Figure 1. 4 is an enlarged view of the X section, FIG. 6 is a side view of the horizontal rotary conveyor, FIG. 7 is a plan view of FIG. Figure 9 (a) is a diagram of a workpiece punched out from a coiled thin steel plate, (b) is a diagram of one of the workpieces taken out, and (C)
is a reversed view of (b), and Figure 10 is an alternate 180
It is a diagram in which workpieces with different angles are punched out of a thin steel plate. In the drawing, 2 is a blanking machine, 3 is a delivery conveyor, 5 is a rotary magnetic conveyor, 7 is a noglet conveyor, 8 is a side piler conveyor, 10 is a horizontal rotary conveyor, P, PI, P2. P3 is a pallet, W,
Wl, W2. W3. W4 is the workpiece (blank material), A
is the upward tilted position and B is the horizontal position. Patent applicant: Agent for Honda Motor Co., Ltd.
Patent Attorney Part 2 1) Patent Attorney Kuni Ohashi Part 1 Patent Attorney Ariguchi Koyama Patent Attorney No 1)
In Shigeru

Claims (1)

[Scope of Claims] A conveying device that continuously punches blank materials from thin steel sheets using a blanking machine and sends the blank materials to a press machine for the next process, provided on one discharge side of the blanking machine, and provided at a terminal end. A delivery conveyor for the blank material whose side is movable up and down; the delivery conveyor is connected to an upward movement position, attracts the blank material to a cylindrical drum via a magnet, and rotates the blank material from above to below to turn it over. a rotating magnetic conveyor, which is provided below the rotating magnetic conveyor, and which continuously receives a certain amount of the turned-over blank materials on a first pallet, and at a downward movement position of the dispensing conveyor, a first pallet directly receives the blank materials from the dispensing conveyor; a first conveyor that continuously receives a certain amount of blank material onto the second pallet and conveys the first or second pallet to a predetermined location; a second conveyor that receives a predetermined amount of the blank materials punched out on a third pallet and conveys the third pallet on a separate line; and the first and second conveyors. A conveying device for thin steel sheet material, comprising a horizontal rotary conveyor provided at a confluence point of the conveyors and rotating predetermined ones of the first to third pallets to change the direction of the blank material.