JPH03230898A - Press line - Google Patents

Abstract

PURPOSE:To automatically stack plural blanks as parallel to plural pallets and to improve production by setting plural empty pallets-positioning means at upstream side and setting magazine positioning means at downstream side. CONSTITUTION:A pallet conveying circuit system 200 is formed between a stacking device 20 and a destacking device 130, and a magazine circulation shifting means 40 for circulating the magazine 30 over at front and rear parts passing through the stacking device 20 is set. The means 80 for positioning plural empty pallets 50 onto the magazine 30 at the upstream side and the magazine positioning means 90 for positioning the magazine 30 to the prescribed position (press aixs P) at the downstream side, are set. By this method, plural blanks W punched at the same time with a punching press 1 can be automatically stacked as parallel to plural pallets 50 and the production is improved.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a press line that can automatically stack a plurality of blanks onto each pallet at the same time. A press line is widely used in which blanks are stored on a pallet using a stacking device, and the blanks are taken out one by one from the pallet using a destacking device and fed to a transfer press.

Here, the conventional stacking device is configured to store blanks produced by a punching press one by one on a pallet. Further, the pallets 1 to 1 are transferred from the stacking device to the distacking device using a manual cart, a roller conveyor, or the like.

[Problem to be Solved by the Invention] However, in today's world, where there is a strong demand for improved productivity, cost reduction, automation, etc. of the negative layer, the above-mentioned conventional configuration cannot completely satisfy these demands.

In other words, punching presses can easily achieve higher speeds due to their simple processing, while transfer presses are slower than punching presses due to their high precision and variety of processing.

Therefore, there is a mismatch in processing speed between the punching press and the transfer press, so if the pallet was manually transported, it would be too labor-intensive.
Empty pallets (pallets 1~ with no blanks loaded,
It is troublesome to store and manage stacked so-called real pallets (blank or fully loaded pallets, the same applies hereinafter).

In particular, there is a strong tendency for punching presses to produce multiple blanks in one stroke from a single coil in order to reduce varnishing. Accurate stacking work is required, but since the spacing (pitch) between blanks produced at the same time varies depending on the shape of the blanks, etc., the punching position of each blank changes with respect to the axis of the punching press. However, a press line that automatically stacks multiple blanks onto each pallet at the same time has not yet been developed.

An object of the present invention is to provide a press line that can automatically stack a plurality of blanks at the same time and that can easily store and manage pallets.

[Means for Solving the Problems] The present invention introduces a novel magazine to which a plurality of pallets can be attached at predetermined positions so that a plurality of pallets can be positioned at a plurality of stack positions at once. After work, the pallet is configured so that it can be removed from the magazine and circulated for storage and management, thereby achieving the above purpose. A pallet transport circulation system is formed between the pallet transport circulation system and the stacking device that takes out the pallets one by one, and a magazine configured to be able to attach a plurality of pallets is circulated before and after passing through the stacking device in this pallet transport circulation system. A magazine circulation moving means for moving the magazine is provided, and an empty pallet positioning means for positioning a plurality of empty pallets at predetermined positions on the magazine is provided on the upstream side of the stacking device of the magazine circulation movement means, and an empty pallet positioning means is provided on the downstream side. The present invention is characterized in that a magazine positioning means is provided for positioning the magazine at a predetermined position with respect to the stacking device.

[Function] In the present invention, the empty pallet conveyed from the pallet conveying circulation system is moved to a predetermined position on the container by the empty pallet positioning means on the upstream side of the magazine circulation moving means. The magazine in which a plurality of empty pallets are positioned and attached is again moved by the stacking device by the magazine circulation moving means. Then, the magazine is positioned at a predetermined position with respect to the stacking device by the magazine positioning means.

Therefore, by positioning one magazine, multiple empty pallets can be quickly and accurately positioned on multiple stacking devices. Therefore, multiple blanks produced simultaneously by the punching press can be automatically stacked on multiple empty pallets at the same time. Thereafter, the so-called real pallets containing a large number of blanks are removed from the magazine and are sequentially moved to the de-stacking device while being retained in the pallet conveying circuit. Empty pallets 1~ that have passed through the de-stacking device are transferred again by the magazine circulating means 6 [Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings. As shown in Figure 1, the stacking device 2
A transport circulation system path 200 for pallets 50 is formed between the stacking device 130 and the stacking device 130, and basically the pallets 50 are sequentially transferred, and magazine circulation moving means 40 is provided before and after passing through the stacking device 20. An empty pallet positioning means 80 is provided on the upstream side of the magazine circulation moving means 40 across the stacking device 20, and a magazine positioning means 90 for setting the magazine 30 at a predetermined position is provided on the downstream side. .

That is, the punching press 1 is supposed to simultaneously punch out a plurality of blanks W (two in this embodiment) from the coil material supplied by the coil supply device 3.6However, the punching position is determined depending on the shape of the blank W.・Varies depending on size etc. In other words, the blank supply axes B1 and 82 are not constant with respect to the press axis P shown in FIG.
．． Y2 changes.

Therefore, blank % separately on each pallet 50.50
Stack work of / is not only labor-intensive but also extremely difficult to automate due to space considerations, making it unrealistic6
Therefore, by introducing a new magazine 3o, a plurality of empty pallets 5o are positioned in advance at the above-mentioned intervals Yl and Y2 and attached to the magazine 30. By positioning a plurality of empty pallets 50, a plurality of empty pallets 50 can be simultaneously positioned on the corresponding stacking device 20.

Furthermore, after the stacking operation, the spacing between the multiple pallets 50.degree. 50 does not matter. This is because the transfer press 2 uses the destacking device 130 to take out the blanks W one by one.

Therefore, the pallets 50 removed from the magazine 30 are transported and circulated separately, and a large number of actual pallets 5° can be stored.

The constituent elements will be separated below.

First, as shown in FIG. 1, the pallet conveyance circulation system 200 conveys the actual pallet 50 containing a large number of blanks W from the stacking device 20 to the destacking device 130, and from the destacking device 130 again to the stacking device 20. This is to circulate the water. Specifically, a part of the magazine circulation moving means 40, which will be described in detail later, and a pallet feeding conveyor 60,
, 100, self-propelled carts tio, iio, pallet traverse conveyor 120, etc., are arranged in a rectangular planar shape as shown in FIG.
and a lifting means 22, which gradually lowers the blanks W placed on the table 21 and accommodates them on the pallet 50. In this embodiment, as shown in FIG. Each of the six stacking devices 20, two of which are arranged in parallel according to the number of W (2), can be moved away from and approached in the vertical direction in FIG. 1 via a trolley 23 shown in FIG.

In other words, the dimensions shown in Figure 1 (Y 1. + Y 2 )
The blanks W are supplied from the punching press 1 to the stacking device 20 by the blank supplying device 10 arranged in parallel. As shown in FIG.
It consists of a first magnetic conveyor 11 that transports the blank W by placing it on the upper surface of the blank W, and a second magnetic conveyor 12 that is disposed above and below to partially overlap with the blank W through a gap S. The net conveyor 12 transfers the blanks W to the stacking device 20 while sucking the blanks W onto the lower surface of the bell 1 16 . In addition, the second magnetic conveyor 12
The Macnet roller 13 is moved to the second position relative to the stacking device 20 by a screw 14 driven drop position adjusting means 14.
The position can be changed as shown by the two-dot chain line in the figure.

Therefore, by adjusting the dropping point according to the weight of the blank W, etc., it is possible to accurately feed the blank W into the blank kite 5.Next, the magazine 30 has a structure to which a plurality of (two) pallets 50 are attached. , as shown in FIG.
, and clamping means 34 for clamping the pallet 50 are provided on both sides of the upper part of the pallet.

The magazine 30 can therefore slide on the rails 39.39. Further, the clamping means 34 can be operated from the outside by operating means 70, as shown in FIGS. 7 and 9. That is, by pressing the head of the clamping means 34 with a pressing member 71 that is raised and lowered by a cylinder 72 shown in FIG. 9, the pallet 5o can be locked to or released from the magazine 3o.

The operating means 70 is located at positions P1 and P2 shown in FIG.
are arranged respectively.

This is because a plurality of pallets 50 are attached to the magazine 30 at the position P1, and an actual pallet 50 is removed from the magazine 30 at the position P2.

Here, as shown in FIG. 3, the magazine circulation movement means 40 is a means for three-dimensional circulation movement of the magazine 30 vertically and horizontally, and includes a horizontal feed mechanism 4 provided in two stages, upper and lower.
1.41 and left and right lids 46, 46.

As shown in FIGS. 4 to 7, this horizontal feed i'WI 41 is configured such that a plurality of rollers 42 arranged at a constant pitch are rotatable about a common spline shaft 43, and each roller 4
Reference numeral 2 denotes a cylinder 44a, which is formed so that the lever 44 can come into contact with and be separated from the magazine 30 on the rail 319, as shown by the two-dot chain line in FIG.

Therefore, if the spline shaft 43 is rotated by the motor, the roller 42 can move the magazine 30 while the lever 44 is kept in the state shown by the solid line in FIG.

That is, since the magazine 30 conveys a plurality of pallets 50, it is configured to feed the pallets in pitches to improve positioning accuracy. Further, the magazine 30 can be continuously fed.

Furthermore, since the driving power is provided externally, the magazine 30 can have a simple structure.

On the other hand, the lifter 46 moves the actual pallet 5 at position P2.
The magazine 30 from which 0 has been removed is lowered to position P.
1, the magazine 30 is raised. Therefore, as is clear from FIG. 3, the magazine 30 is
The magazine circulates vertically in a rectangular circulation system.

Next, the empty pallet I-positioning means 80 is moved as shown in FIGS.
As shown in the figures, particularly in Figs. 8 and 9, it is formed of a pallet feeding conveyor 60 disposed at position P1, a pair of link stoppers 81, 82, etc.

That is, the pallet feeding conveyor 60 is formed of a plurality of forward rollers 62 driven by a motor 61 and a number of forward and backward rollers 64 driven by a motor 63, as shown in FIG.

Therefore, the empty pallet 50 delivered from the left side in FIG. 8 from the self-propelled cart 110 is transferred to the right side by the forward roller 62. Here, if the Linsys 1 to the collar 82 are in the solid line state shown in FIG. 9, the first empty pallet 1-
50 can be stopped and the next empty pallet 50
is advanced until it comes into contact with the rear end of the empty pallet 50 that is the first.

Here, if the link stopper 81 is operated from the state shown by the two-dot chain line in FIG. As a result, the vehicle is moved backward (to the left in FIG. 9) until it comes into contact with the link stopper 81.

3. Therefore, if the screw 86 is rotated by the motor 85 and the distance between the supporting members 83.84 of the two stoppers 81.82 is adjusted, the two empty pallets 50.50 can be positioned at the distance (Yl+Y2). I can do it.

After positioning the stuffiness 11, if the lifter 46 is raised as shown in FIG. 9, the magazine 30 is lifted onto both rollers 6264 as shown in FIGS. 8 and 9. Two empty pallets 5 on the support 32
This means that it is possible to transfer while maintaining the interval (Y1+Y2) adjusted to 0.50. To operate the operation means 70 in Fig. 9, use the rain pallet 50.50.
is fixed to the magazine 30 by the claw 34a of the corresponding clamping means 34, as shown in FIG.

On the other hand, as shown in FIGS. 3 and 4, the magazine positioning means 90 includes a slider 91 whose position can be adjusted in the transport direction of the magazine 30 (left-right direction in FIG. 3) and a slider 91 rotatably attached to the slider 91. Stopper 93 and this stopper 93
It is formed from a cylinder 92 that rotates the cylinder 4. Therefore, when the stopper 93 is projected onto the rail 39 in advance, the machine machine 3
The center line of 0 is axis I! Adjust the horizontal feeder to match P! The magazine 30 conveyed at 41 can be stopped in alignment with the axis P. In this case, since the rain pallet 50.50 has already been fixed to the magazine 3o at intervals Y1 and Y2 by the pallet positioning means 8o, the winter pallet 5o is aligned with the blank supply axes B1 and 82 as shown in FIG. do. That is, it is precisely positioned in the stacking device 20.20.

In this way, the stacked actual pallets 5°50 are
It is removed from the magazine 3° by releasing the clamping means 34 by the operating means 7o at position P2, and is removed from the pallet feeding conveyor 100 (this conveyor 100 is at position P1).
162 corresponding to the forward roller 62, unlike the one disposed in
110). Meanwhile, the magazine 30 is lowered by a lifter 46.

Further, the cart 110 carries the actual pallets 50 transferred by the pallet 51 to the feed conveyor 100 shown in FIG. This is means for transporting the actual pallet 50. The empty pallet 50 is conveyed from the pallet cross conveyor 120 to the pallet feed conveyor 60 side as shown in the upper part of FIG.

Specifically, as shown in FIG. 10, the pinion 117 that meshes with the rack 118 disposed on the rail 119 side is made self-propelled by controlling the motor 116.
The main body 111 includes a horizontal feeder m similar to the horizontal feed mechanism 41 for moving the actual pallets 1-50 within the main body 111.
<Roller 112) is provided. Further, a lifter 113 is installed that can adjust the vertical position of the actual pallet 50.

This cart 110 can carry two pallets 50, 50 on it.

Next, the pallet cross conveyor 120 transports the actual pallet 50
The empty pallets 50, after all the blanks W have been delivered to the six I-transfer presses 2 by the unstacking device 130, are transported to the upper cart 110 in FIG. It is something.

Next, the operation will be explained 6. Empty pallet 50 supplied to pallet feeding conveyor 60
As shown in FIGS. 4 and 8, the paper is sent in the direction of the stacking device 20 (to the right in FIG. 8) by a forward roller 62 driven by a motor 61, and as shown in FIGS. As shown, the link stopper 8 of the pallet positioning means 80
2 is lowered, the position of the leading end of the empty pallet 50 is regulated by links 1 to flange 82. The next empty pallet 50 is brought into contact with the rear end of the foremost empty pallet 5.

Then, when the motor 61 is stopped and the motor 63 is driven, the forward and backward movement rollers 64 are reversed, and the next empty pallet 50 is returned to the left (reverse movement) in FIG. It is locked to the Linsys 1 hepper 81 that was lowered previously.

Therefore, both link stoppers 81, 82, 7 motors 85. If the position is adjusted in advance with respect to the center of the magazine 30 that will be pushed up later by the screw shaft 86, the center of the next pallet 50 will be shifted by a dimension Y1 from the center of the magazine 30, while the center of the previous pallet 50 will be shifted from the center of the magazine 30. is also furrowed in dimension Y.

In this way, after the two empty pallets 50, 50 are positioned by the pallet positioning means 80, the lifter 46 of the magazine circulation movement means 40 is raised.

That is, as shown in FIG. 9, when the lifter 46 is raised, both pallets 1-50 and 50 are in the positioned state, and the macarines 30 (3, 2) are moved as shown in FIG.
move on top. Thus, by automatically operating the operating means 70 shown in FIG. 9, the rain pallets 50, 50 can be secured to the magazine 30 by the clamping means 34 as shown in FIG.

Subsequently, the roller 42 of the horizontal feed mechanism 41 is rotated, and the lever 44 of the predetermined roller 42 is operated by the cylinder 44a as shown by the solid line in FIG. 3
You can move along 9. The magazine 30 that is moved in this manner has the form shown in FIG.

Furthermore, the next roller 42 is operated to send it to the right in FIG.

Then, the leading end of the magazine 30 comes into contact with the stopper 93 of the magazine positioning means 90 and is restrained in position. This stopper 93 is adjusted in advance by operating the slider 91 so that the center of the magazine 30 coincides with the axis P of the press as shown in FIG. 1 and FIG. 4. I wanted to,
When the magazine 30 is positioned, both pallets 50.5
0 is the pallet supply axis B1. Matches B2.

In this connection, the two stacking devices 20.20 and the blank supply conveyor 10.10 are already aligned with the axes Bl, B2, as shown in FIG.

Here, when two blanks WW are simultaneously punched from the coil supplied by the punching press 1 or the coil supply device 3 shown in FIG. As shown, the sheets are dropped onto the first magnetic conveyor 11 of each supply conveyor 10, introduced into the blank kite 5 via the second magnetic conveyor 12, and placed on the table 21 of each stacking device 20. The falling point of the second magnetic conveyor 12 has been adjusted in advance by the falling position adjusting means 14.

Therefore, two empty pallets 50.5 on the magazine 30
Can be automatically stacked to 0 at the same time.

Thereafter, the stopper 93 shown in FIG. 3 is released, and the horizontal feed 8M41 is operated again to send the magazine 30 to the position P2 shown in FIGS. 1, 3, and 4.

Here, the operating means 70 is released to release each clamping means 34, and the lifter 46 is lowered from the solid line shown in FIG. 3 to the state shown by the two-dot chain line. In this case, the magazine 30 is lowered together with the lifter 46. On the other hand, rainy weather pallet 50
．． 50 is transferred to the pallet 1 and transferred onto the conveyor 100.

0 Next, the pallet feeding conveyor 100 is started and the pallet is placed on the self-propelled cart 110 on the lower side in FIG.

The self-propelled trolley 110 is equipped with a horizontal feeder and a roller 112 (FIG. 10) with a mechanism similar to [41].
Two real pallets 50.50 can be taken up by the motor 116.6. By the operation of pinion gear 117, cart 110 is moved along rails 119 to pallet traverse conveyor 120, as shown in FIG.

Here, by adjusting the lifter 113 as necessary and rotating the roller 112, the actual pallet 50 can be moved to the traverse conveyor 120. After that, the real pallet 5
0 are sequentially transferred to the destacking device 130.

The de-stacking device 130 adsorbs the blank W in the actual pallet 50 using a vacuum cup or the like and transfers it to the transfer mechanism 4.

Therefore, the transfer press 2 performs predetermined press forming on the continuously supplied blank W, and efficiently produces the product 1.

According to this embodiment, a pallet conveying circulation system 2 is provided between the stacking device 20 and the unstacking device 130.
00 and circulates the magazine 30 before and after passing through the stacking device 20.
A plurality of empty pallets 50 are placed in the magazine 3 on the upstream side.
0, and a magazine positioning means 90 for positioning the magazine 30 at a predetermined position (press axis P) on the downstream side. It is possible to automatically stack 50 blanks W onto multiple pallets 1 in parallel, thereby achieving a dramatic improvement in production.At the same time, a large number of actual pallets 50 can be held in the pallet conveyance circulation system 2'00, thereby reducing the number of pallets. Storage and management can be performed reliably and easily. Therefore, the mismatch in processing speed between the transfer press 2 and the punching press 1 can be resolved and absorbed, and the remaining time can be utilized to effectively utilize the punching press 1 for the purpose of f-cutting. Moreover, achieving simultaneous blank processing increases the effective utilization of coils.

Furthermore, since the flank supply device 1o is of a type in which the blanks W adsorbed to the lower surface of the belt 16 are dropped downward by the second magnetic conveyor 12, reliable and stable stacking work can be ensured. The falling position adjusting means 14 further enhances this effect and can also be applied to diversification of blanks W.

Also, Fukajin 30. Since the magazine circulation moving means 40 is provided, there is no need to separately position and control the plurality of pallets 1 to 50 at stacking positions, so high-speed stacking work can be performed and the overall configuration can be extremely simplified.

In addition, the pallet positioning means 8o is composed of a pallet feeding conveyor 60 that moves forward and backward, link stoppers 81, 82, etc., so the equipment is simple and easy to handle, and its position can be arbitrarily selected, making it widely applicable. It is something.

Furthermore, since the horizontal feeding mechanism 41 has a structure in which each roller 42 is rotated by a common spline shaft 43 and the magazine is transferred by the roller 432 engaged with the magazine 30 by the lever 44, the plurality of pallets 50. Even a heavy magazine 30 loaded with 50 particles can be transferred with high precision and without shock, and intermittent or continuous transfer can be freely selected.

Furthermore, since the self-propelled trolley 110 is provided with a beam lid 113, the stacking device 20 and the distacking device 13 are
It can absorb the problem of uneven placement with the punching press 1. Each of the transfer presses 2 can be arranged independently to allow operation with increased freedom in layout.

[Effects of the Invention] In the present invention, a pallet conveyance circulation system path is formed between the stacking device and the distacking device, and a magazine circulation movement means for circulating the magazine before and after passing through the stacking device is provided. The structure has a means for positioning a plurality of empty pallets on the punching machine on the side and a machine positioning means for positioning the magazine with respect to a predetermined position (press axis) on the downstream side, so that it can be used simultaneously with the punching press. Multiple punched blanks can be automatically stacked on multiple pallets in parallel, dramatically improving production. At the same time, a large number of actual pallets can be stored in the pallet conveyance circulation system, making it easier to store and store pallets. Management can be performed reliably and easily.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the overall configuration of an embodiment of the present invention, Fig. 2 is a side view of the stacking device and its surroundings, Fig. 3 is a side view of the magazine circulation movement means, and Fig. 4 mainly shows the pallet 1 to FIG. 5 is a plan view of the horizontal feeding mechanism, FIG. 6 is a side view, FIG. 7 is a front view of the machining machine, and FIG.
The figure is a plan view showing essential parts of the pallet positioning means, FIG. 9 is a side view, and FIG. 10 is a front view of the self-propelled cart. DESCRIPTION OF SYMBOLS 1... Punching press, 2... 1~Lanceforce press, 3... Coil supply device, 10... Bunraku supply device, 20... Stacking device, 5 0... Magazine, 0. ...Magazine circulation moving means, 0...Pallet, O...Pallet feeding conveyor, 0...Moving means, 0...Empty pallet positioning means, 0...Magazine positioning means, 00...Pallet Feed conveyor, 10...Self-propelled cart, 20...Pallet lateral feed conveyor, 30...Distack device, 00...Pallet conveyance circulation system path.

Claims (1)

[Claims] (1) A pallet conveyance circulation system path is formed between a stacking device that stores multiple blanks in a pallet and a destacking device that takes out blanks one by one from inside the pallet, and the pallet conveyance circulation path passes through the stacking device. A magazine circulation moving means is provided that circulates a magazine formed to be able to attach a plurality of pallets before and after the magazine is moved, and a plurality of empty pallets are placed on the magazine on the upstream side of the stacking device of this magazine circulation movement means. What is claimed is: 1. A press line comprising: an empty pallet positioning means for positioning an empty pallet at a predetermined position; and a magazine positioning means for positioning a magazine at a predetermined position with respect to a stacking device on the downstream side.