JPH0739890Y2 - Metal plate feeder - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal plate supply device for sequentially transporting metal plates as a raw material to a press machine for molding automobile bodies and the like. The present invention relates to a metal plate supply device capable of adsorbing and transporting a metal plate onto a bottom surface of a conveyor regardless of whether it is a non-magnetic material or a magnetic material such as iron.

[0002]

2. Description of the Related Art In recent years, demand for automobiles such as general passenger cars and trucks has been remarkable with the development of industry and economy.

Conventionally, an iron plate having high strength, excellent workability, and plasticity has been used for automobile bodies such as doors and bonnets of the automobile.
With the demand for lighter automobiles, aluminum plates have been used a lot in recent years.

For this reason, automobile industry companies are trying to revise the body molding line in order to cope with the adoption of the aluminum plate.

For example, before using an aluminum plate,
When the iron plate is conveyed to a press or the like, the iron plate 1a is attracted and raised by the vertically movable disstacker 3 as shown in FIG.
Although it was made to adsorb to the bottom of the conveyor A in which it was placed and conveyed to a press or the like, a supply device as shown in FIG. 8 has been developed and put into practical use by adopting an aluminum plate.

In FIG. 8, B is a conveyor, and the conveyor B is equipped with a conveyor belt 6 having a plurality of intake holes 8 as shown in the drawing. In addition, inside the conveyor B, an intake chamber 4 which is in communication with a vacuum pump and is close to the conveyor belt 6 is arranged.

Then, when the aluminum plates 1b laminated on the lift table 2 are adsorbed one by one by the vertically movable disstacker 3 and lifted, they are adsorbed by the conveyor belt 6 and conveyed to a press or the like. It has become.

[0008]

However, according to the supply device configured to arrange the magnet inside the conveyor and to attract and convey the iron plate to the conveyor belt by the magnetic force, the newly adopted aluminum plate is used. Since the aluminum plate cannot be adsorbed, the aluminum plate cannot be transported.

On the other hand, according to the supply device shown in FIG. 8 which has been developed to solve the above-mentioned problem, since suction is performed by the sucked air, it is possible to suck even a non-magnetic material such as an aluminum plate. However, since it does not have a suction force enough to suck an iron plate having a weight of about 30 to 50 kg, the iron plate cannot be sucked and conveyed.

Therefore, it is necessary to perform a two-line process of an iron plate supply line having a conveyor in which magnets are arranged and an aluminum plate supply line having a conveyor in which an intake chamber is arranged, resulting in a huge capital investment. turn into.

Further, if the two-line process as described above is used, it is necessary to sort the lines according to the material of the metal plate, which causes a problem that the amount of work is increased.

Further, in the above-mentioned process, if there is a difference in the production amount of the iron plate molded product and the aluminum molded product, there is a drawback that the equipment operating rate of one of them is greatly reduced.

In view of the above-mentioned circumstances, the present invention intends to enable transport of metal plates regardless of whether the metal plates to be transported are non-magnetic materials such as aluminum or magnetic materials such as iron. To do.

[0014]

In order to achieve the above-mentioned object, the present invention has an elevating table on which metal plates are laminated, an adsorbing part formed by opening a plurality of intake holes, and a magnetically adhering part made up of a magnet. A plurality of conveyors provided side by side so as to extend in a predetermined direction from above the lifting platform, which comprises a conveyor belt.
Inside the conveyor, a bottom portion is provided close to the conveyor belt and an intake chamber connected to an intake device through a pipe, and the conveyor is provided so as to be vertically movable, and is lifted by a suction cup when descending. The present invention provides a metal plate supply device comprising: a stacker for adsorbing an upper metal plate and bringing the adsorbed metal plate into contact with the conveyor belt when rising.

[0015]

According to the present invention, regardless of whether the metal plate fed to the press machine is a magnetic material such as an iron plate or a non-magnetic material such as an aluminum plate, it is attracted to the conveyor belt. Can be transported.

That is, in the feeder of the present application, the magnetic metal plate such as the iron plate adsorbed and lifted by the destacker is adsorbed to the magnetically bonded portion of the conveyor belt at the bottom of the conveyor and conveyed, and the aluminum plate or the like. The non-magnetic metal plate is adsorbed by the suction portion of the conveyor belt at the bottom of the conveyor by the suction air sucked into the suction chamber from the suction hole.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a main portion of a feeding device showing the embodiment of the present invention, FIG. 2 is a side view of the feeding device, and FIG. FIG. 4 is a plan view of the supply device, and FIG. 4 is a sectional view taken along line XX ′ in FIG.

In the figure, 1 is a metal plate, 2 is an elevator, and the metal plate 1 is arranged on the elevator 2 in a stacked state.
Further, the lifting table 2 is a reservoir for stacking and mounting the metal plates 1 such as iron plates and aluminum plates which are pressed in the post-process as described above. It is configured such that the plate thickness of one metal plate 1 is increased each time it is taken out one by one.

The destacker 3 is configured to adsorb the metal plate 1 made of an iron plate, an aluminum plate, or the like by the suction force by communicating with a vacuum pump or the like.
By being equipped with an air cylinder or the like, it is configured to be able to freely move up and down.

As shown in FIG. 3, the destacker 3 is arranged between a plurality of conveyors 10 arranged side by side so as to extend from above the elevating table 2 in the direction of a press machine or the like (not shown). The suction plate 3a (see FIG. 2) attached to the tip attracts the metal plate 1 on the lifting table 2, and the metal plate 1 adsorbed when ascending is brought into contact with the conveyor belt 16 at the bottom of the conveyor 10. ing.

As described above, the conveyor 10 has the lifting table 2
There are a plurality of side-by-side installations that extend from above the machine toward the direction of the press machine, etc., and in particular, the number of operating plates can be changed according to the size of the metal plate 1 to be conveyed. The plate 1 can be transported.

As shown in FIG. 1 or 3, the conveyor belt 16 of the conveyor 10 has approximately 5
Intake holes 18 are opened in a zigzag pattern at intervals of 0 mm, and the suction holes 20 are formed there. In addition, FIG.
As is clear from the above, the magnet 17 is sandwiched between the conveyor belts 16 and serves as the magnetic attachment portion 30.

On the other hand, as clearly shown in FIG. 1 or 2, the inside 19 of the conveyor is provided with an intake chamber 14 which communicates with an intake device (not shown) such as a vacuum pump.

Therefore, the metal plate 1 which is brought into contact with the bottom surface of the conveyor 10 by the rise of the destacker 3 is adsorbed to the magnetic attachment part 30 if it is an iron plate, and adsorbed to the adsorption part 20 if it is an aluminum plate. Be transported.

By the way, the conveyor belt 16 is a cloth belt 1 coated with urethane as shown in FIG.
6a, a magnetic belt 16b including a magnet 17 such as a rubber magnet, and an iron wire-containing urethane belt 16c form a three-layer structure, and each layer has a taper shape by opening holes having different diameters. Intake hole 18
Is provided.

As shown in FIG. 1 or 2, the intake chamber 14 is formed of a hollow body having a substantially trapezoidal side surface, and a plurality of the intake chambers 14 are arranged inside the conveyor 19 with their bottoms being close to the conveyor belt 16. A pipe 15 connected to an intake device such as a vacuum pump is fitted in the upper part. Therefore, the suction chamber 14 sucks air from the suction unit 20, and the metal plate 1 (aluminum plate) is suctioned to the suction unit 20.

Thus, the metal plate 1 adsorbed on the conveyor belt 16 is cleaned through a cleaning device (Actual Kaihei No. 2-33263) or the like, and then sent to a press machine or the like to be used for doors of automobiles or the like. It is formed into a shape such as a bonnet.

When an aluminum plate is conveyed as the metal plate 1, an intake device such as a vacuum pump can be operated by operating a changeover switch (not shown).

On the other hand, as shown in FIG. 2 or FIG. 3, at the tip of the conveyor 10, that is, at one end on the feed side of the metal plate 1, the rotating body 35 is attached to the cover 33 in a state of protruding with respect to the bottom surface of the conveyor 10. This rotating body 3 is attached to the shaft.
At 5, the iron plate as the metal plate 1 is forcibly separated from the conveyor belt 16. Therefore, the magnetic attachment part 3
The iron plate adsorbed at 0 can be smoothly detached without warping at the tip of the conveyor 10.

As an embodiment of the present invention, there are the following configurations in addition to the above-described configurations.

For example, as shown in FIG. 5 to FIG. 6, a conveyor belt 36 having a three-layer structure (each layer is made of urethane rubber, cloth or the like) is provided with an intake hole 18 as in the above embodiment. By opening a hole for fitting a substantially circular magnet 37 and fitting the magnet 37 in the hole, a plurality of attraction portions 20 and magnetic attachment portions 30 are alternately arranged on the surface of the conveyor belt 36. It may be provided.

In this case, in particular, as the magnet 37, not only a flexible magnet such as a rubber magnet or a plastic magnet but also a metal magnet such as an alnico magnet or a sintered magnet such as a ferrite magnet can be used.

Further, in this structure, the attracting portions 20 and the magnetically attaching portions 30 do not have to be arranged linearly along the conveyor belt 36, and they may be arbitrarily scattered on the conveyor belt 36. .

[0034]

Since the metal plate feeding apparatus according to the present invention is constructed as described above, it has the following effects.

(1) According to the metal plate feeder of the present invention, regardless of whether the metal plate fed to the press machine is a magnetic material such as an iron plate or a non-magnetic material such as an aluminum plate. ,
This can be adsorbed on a conveyor and conveyed.

(2) Further, since both the iron plate and the aluminum plate can be conveyed by one supply device, the iron plate supply line having the conveyor inside which the magnet is arranged and the conveyor where the adsorption device is arranged are provided. There is no need to have a two-line configuration with the aluminum plate supply line that it has, and the excellent effect of reducing capital investment by that amount is obtained.

(3) In addition, since one feeder can handle all metal plates, it is not necessary to sort the lines according to the iron plate, aluminum plate, etc., so that the work amount can be greatly reduced and the iron plate can be reduced. Even if there is a difference in the production amount between the molded product and the aluminum molded product, it is possible to obtain the excellent effect that it is possible to suppress a decrease in the facility operation rate.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of a metal plate supply device showing an embodiment of the present invention.

FIG. 2 is a side view showing the supply device.

FIG. 3 is a plan view showing the supply device.

FIG. 4 is a sectional view taken along line XX ′ in FIG.

FIG. 5 is a plan view of a metal plate feeder according to another embodiment of the present invention.

6 is a sectional view taken along the line YY ′ in FIG.

FIG. 7 is a side view showing a conventional iron plate conveyor.

FIG. 8 is a side view showing a conventional aluminum plate conveyor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal plate 2 Elevating table 3 Destacker 3a Sucker 10 Conveyor 14 Intake chamber 16,36 Conveyor belt 17,37 Magnet 18 Intake hole 19 Conveyor inside 20 Adsorption part 30 Magnetic attachment part

Claims (1)

[Scope of utility model registration request] 1. A conveyor belt having an elevating table on which metal plates are stacked, a suction section formed by opening a plurality of intake holes, and a magnetically attaching section made of a magnet, and a predetermined direction from above the elevating table. A plurality of conveyors that are installed so as to extend, a bottom portion provided inside the conveyor in the vicinity of the conveyor belt, and an intake chamber that is connected to an intake device via a pipe, and moves vertically between the conveyors. An apparatus for supplying a metal plate, which is provided freely, and includes a destacker for adsorbing the metal plate on the elevating table by a suction cup when descending and abutting the adsorbed metal plate on the conveyor belt when ascending.