JPS6268630A - Pallet for press - Google Patents

Abstract

PURPOSE:To increase the productivity of a press line by letting a pallet have the shape and dimension that plural stacks can be placed on and by forming plural through holes for the pushup rod which ascends each stack individually, as well. CONSTITUTION:The large-sized main pallet 12 which is made to place plural stacks 8 thereon in the press line direction and stack carrying-in direction is prepared. Further, the plural apertures provided on a destack conveyor 3 part and that the pushup rod of a lifter 9 is penetrated are formed on the pallet 12. A stack 8a is lifted with the pushup rod of the lifter 9 and a metallic plate is fed to the press line one sheet by one sheet by a destacking device 4. After completion of the stack 8a, the feeding of the metallic plate is in succession performed by changing to a stack 8b to continue the press work. In this way, the moving times and distance of the pallet is reduced and the productivity of the line is increased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a pallet for carrying stacks into a press line.

[Prior Art] FIGS. 5 and 6 show an example of a stack loading section in a press line, in which a destacking device is installed on the upstream side of a press device 2 provided in a press line 1 to straddle a destacking conveyor 3. 4 is provided, and the side of the destack conveyor 3 (direction across the press line) -
A stack carry-in conveyor 5 is provided on one side, and a pallet carry-out conveyor 6 is provided on the other side.

One stack 8 in which a large number of metal plates are stacked on a pallet r is suspended onto the stack carry-in conveyor 5, and then the pallet 7 is moved onto the destack conveyor 3 by the stack carry-in conveyor 5. , the separation device 10 of the destacking device 4 and the suction bag @ 11 are installed on the destacking conveyor 3 and are gradually raised by the lid 9.
The metal plates are lifted one by one and moved in the six directions of the arrows and placed on the press line 1, and then transferred to the downstream press machine 2.
is being supplied to. Further, the pallet 7 for which the stack 8 has been supplied is taken out onto the pallet carry-out conveyor 6, and then a new stack is carried in. Also, when storing stacks in a stockyard, one stack was placed on one pallet.

[Problems to be Solved by the Invention] However, in the conventional apparatus described above, only one integral stack 8 can be placed on one pallet 7, so as the production efficiency of the press line improves, the number of stack loading operations increases. Therefore, increasing the stack conveyance speed increases the risk of cargo collapse, increases loss time, and lowers productivity. In addition, in order to use the stockyard effectively, it is necessary to use many types of pallets that are suitable for the size of the stack, and if the number of pallets is limited to a small number of types, the capacity of the stack will be reduced, which can lead to various problems. Was.

The present invention was made by focusing on the above-mentioned conventional problems.
By placing multiple stacks on one pallet and reducing the number of pallet movements and the distance traveled per stack, the aim is to reduce the possibility of cargo collapse, etc., and to reduce loss time. There is.

[Means for solving the problems] The present invention attempts to solve the above technical problems, and
A pallet that is suitable for storing stacks in a stockyard and for transporting stacks to a press line, has a size that allows multiple stacks to be placed in the direction of the press line and in the stack transport direction, and that allows each stack to be placed separately. This invention relates to a press pallet characterized in that a plurality of openings are formed through which push-up bars of a lifter for raising the press pallet are formed.

[Function] Therefore, in the present invention, since a plurality of stacks can be placed on one pallet, it is possible to reduce the number of times the pallet is moved and the distance traveled for one stack to carry in the stack. It is also possible to place stacks of various types at the same time.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 to 3 show an example of the present invention applied to the stack loading section provided in the press line shown in Figure 5.6, in which a plurality of stacks 8 can be placed in the press line direction X and the stack loading direction Y. Large main pallet 1
I am trying to set up 2.

The destack conveyor 3 is installed at the bottom of each of the main pallets 12 on which the plurality of stacks 8 are placed.
A plurality of openings 14 are formed in the openings 14 and through which push-up rods 13 of the lid 9 pass.

Further, each stack 8 is supported on a sub-pallet 15 as a protection member so that it will not be damaged by the pushing up of the pushing up bar 13.

Reference numeral 18 indicates a traverse conveyor provided in a direction perpendicular to the stack carrying-in conveyor 5.

Moreover, FIG. 4 shows another example, in which the main pallet 12
A groove 16 is formed in the opening 14 on the top surface, and a protective member 17 that fits into the groove 16 is provided, and the upper end of the push-up bar 13 lifts and supports the stack 8 via the protective member 17. I try to do that.

The main pallet 12 shown in FIGS. 1 to 3 has four
It has a size that can accommodate stacks of &a, 8b, 8c, and 8d.

Therefore, as shown in FIG. 3, the main pallet 12 on which the stacks are placed is moved in the stack carrying direction Y via the stack carrying conveyor 5, and the two stacks 8a and 8b on either the left or right are aligned with the press line 1. and placed on the destack conveyor 3 in this state.

Subsequently, the destacking device 4 supplies the metal plates in the stack 8a one by one to the press line 1 while moving them one by one, thereby performing a continuous press operation.

When the stack 8a runs out of metal plates, the stack 8b is supplied by changing the stroke length of the destacking device 4 in the forward direction. This makes it possible to continuously supply another stack without stopping the press line 1. Further, at this time, the main pallets 1 to 12 may be moved in the press line direction by the traverse conveyor 18 without changing the stroke of the destacking device 4.

As soon as the supply of the stack 8b is finished, the main pallet 12 is moved by the destack conveyor 3 so that the stacks 8c and 8d are aligned with the press line 1. At this time, since the main pallet 12 only needs to be moved by the distance of the stacks 8a, 8b, 8c, and 8d, the loss time can be significantly reduced compared to the method of newly loading the stacks from the top of the stack loading conveyor 5. . Subsequently, stack 8C,
Supply 8d.

Also, when raising each stack in the destack conveyor 3 section, the upper end of the push-up bar 13 of the lifter 9 is protected by the protective member 15.
．． Since it is brought into contact with the bottom surface of the stack via 17, it is possible to prevent damage to the metal plate of the stack.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and that various types of stacks can be placed on the main pallet at the same time, and that various changes can be made without departing from the gist of the invention. Of course, you can get it.

[Effects of the Invention] As described above, according to the press pallet of the present invention,
Since multiple stacks can be placed on one pallet, it is possible to reduce the number of pallet movements and the distance traveled per one stack for transporting the stacks to the press line. Therefore, since the conveyance speed of the stack can be reduced, the excellent effects of reducing the risk of cargo collapse and improving productivity by reducing lost time can be achieved.

[Brief explanation of drawings]

Fig. 1 is a front view showing one embodiment of the present invention, Fig. 2 is a perspective view thereof, Fig. 3 is a plan view thereof, Fig. 4 is a perspective view showing another embodiment, and Fig. 5 is a press line. A side view showing an example of
FIG. 6 is a plan view of FIG. 5. 1 is a press line, 2 is a press device, 3 is a destack conveyor, 4 is a destack device, 5 is a stack carry-in conveyor, 8 is a stack, 9 is a lifter, 12 is a main pallet, 13 is a push-up bar, 14 is an opening, 15 is a sub-pallet, 16 is a groove, and 17 is a protection member.

Claims (1)

[Claims] 1) A pallet for transporting stacks to the press line, which has a size that allows at least a plurality of stacks to be placed in the direction of the press line, and a plurality of pallets that are penetrated by push-up rods of lifters for raising each stack separately. A press pallet characterized by having an opening formed therein.