JPH04190933A - Conveyer device for carrying die - Google Patents

Abstract

PURPOSE:To execute the die shifting work in a short time and to improve the operating efficiency of press device by setting the 1st space mounting the die taken from each press device and the 2nd space setting plural press devices to nereby position. CONSTITUTION:Plural dies 6 for changing to be changed at a die carrying in and out part 4 set at one end is set, then each die 6 for changing is carried and set respectively at the 2nd space S2. Next, each press device 1 is stopped, then the die 5 to be changed is taken out from each press device 1 and mounted respectively on the 1st space S1. Next, the die 6 for changing and the die 5 to be changed are carried and each die 6 for changing is positioned respectively on the 1st space S1. Next, the die 6 for changing is set respectively on the press device 1. After the die 6 for changing is completed, the die 5 to be changed is carried to the die carrying in and out part 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a mold transport conveyor device for transporting molds used in a press machine.

[Conventional technology] Conventionally, mold replacement work for press equipment was carried out using hand carts (hereinafter referred to as
It's simply called a "trolley." ) was used.

That is, first, a replacement mold is taken out from the mold storage and placed on a truck, and then this truck is exposed to the front of the press apparatus. Thereafter, the mold to be replaced is removed from the press device and placed on a trolley, and the replacement mold is attached to the press device. Finally, the mold to be replaced is placed on a trolley and transported to a mold storage, and the mold to be replaced is stored in the mold storage to perform the mold exchange.

[Problems to be Solved by the Invention] However, in the conventional mold replacement work using a trolley, when replacing molds of multiple press devices (for example, a press line), the above-mentioned replacement work is difficult. Only the number of presses required must be carried out. Therefore, it takes a lot of time to move the cart back and forth from the mold storage to the press device, which has the problem of reducing the operating efficiency of the press device. It has been proposed that rails be laid on the front floor surfaces of multiple press machines, and a trolley on which molds are placed is transported on these rails to perform mold replacement work, but in the end, It is necessary to move back and forth between the carriage or the mold storage and the press apparatus for the number of press apparatuses, making it impossible to effectively improve the operating efficiency of the press.

The present invention was made against the background of the above-mentioned conventional technical problems, and provides a mold conveyor device that enables mold exchange work to be performed in a short time and improves the operating efficiency of a press machine. The purpose is to

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a metal mold that is provided along the front surface of a plurality of press devices installed side by side and that transports a mold used in each press device. In the mold conveyor device, a first space is provided in front of the molds to be replaced attached to the plurality of press devices, and a first space is provided in front of the molds to be replaced that are attached to the plurality of press devices. A replacement mold that can be attached to the plurality of press devices is installed at an adjacent location on the same side with respect to one space.
The present invention is characterized in that a second space is provided, and a mold loading/unloading section is provided at one end in the conveying direction.

[Operation 3] After placing a plurality of replacement molds to be replaced on the mold carry-in/out section provided at one end, each replacement mold is transported and positioned in the second space. Next, after stopping each press device, the die to be replaced is removed from each press device and placed in the first space. Next, the replacement mold and the replaced mold are transported to position each replacement mold in the first space. Next, each replacement mold is attached to a press device. After installation of the replacement mold is completed,
Transport the mold to be replaced to the mold loading/unloading section.

[Example] Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 9.

In this embodiment, as shown in FIG. 1, a case is taken as an example in which the mold conveyor apparatus K according to the present invention is installed in three press apparatuses L arranged in parallel in the horizontal direction.

First, the press device will be explained.

The press device 1 includes a holster 11 as shown in FIG.
A pair of lower die setting stands 12.1 facing left and right on the upper surface of the
2 are provided respectively. Lower mold set stand 12.12
A first roller conveyor 13.13 for conveying molds extending in the front-rear direction is provided on each opposing surface. Each first corrugated hair 13 is provided so as to be able to be raised and lowered by a hydraulic device (not shown), and is located below (or flush with) the upper surface of the lower mold setting table 12 when lowered (when lower mold is set). . In the figure, reference numeral 14 is a clamp for attaching the lower mold to the lower mold set table, and reference numeral 1 is a clamp for attaching the lower mold to the lower mold set table.
5 is a press frame.

Next, to explain the mold conveyor device according to the present invention, the mold conveyor device includes FIGS.
As shown in the figure, three transport conveyors 2 are arranged in a straight line on the front side of each press apparatus 1, and a link a structure 3 connects each transport conveyor 2 and each press apparatus 1, respectively. It is provided with a carry-in/out conhair 4 (mold carry-in/out section) installed adjacent to the conveyance conveyor 2 located on the rightmost side.

The conveyor conveyor 2 includes an elongated rectangular frame 21 and a plurality of rollers 22 rotatably supported on both sides 21 a of the rectangular frame 21 .

The rectangular frame 21 is formed to protrude upward from one side located on the right side in FIG. 3 or the other side. This prevents the molds from falling off the conveyor 2 during transport of the molds. Further, a bottom plate 23 is formed at the bottom of the rectangular frame 21. The bottom plate 23 is formed with protrusions 24a, 24b and 25a, 25b (see FIG. 4) that protrude downward. The protrusions 24a and 24b are arranged at positions that substantially coincide with the left side surface of the press device 1. On the other hand, the protrusions 25a and 25b are
It is located almost in line with the right side of the

As shown in FIG. 2, the plurality of rollers 22 are spaced apart from each other at equal intervals, and are located on both sides 21a of the rectangular frame 21,
It is rotatably supported by 21a. As shown in FIG. 3, the upper end surface 22a of each roller 22
It is installed so as to be substantially flush with the upper end surface 12a of. Each roller 22 can be automatically conveyed by a drive device (for example, a chain drive, etc.) not shown.

A detection switch (not shown) (for example, a phototube switch) is provided near the left end portion 26 of each conveyor 2 .

The detection switch is actuated to stop the drive of each conveyor 2 when each of the replacement molds 6 or the second space S, which will be described later, is located. Thereby, each replacement mold 6 is placed in the second space S, respectively.

Each conveyor 2 having the above-mentioned configuration is connected to the press device 1 via each link mechanism 3, respectively.

11 link mechanism 3, as shown in FIG.
A base plate 31 is provided on one side of the base plate 1. A protrusion 24 is provided at the tip of the base plate 31.
It is rotatably supported via a rotation shaft 31a.

One end of a link 32 is rotatably supported at the lower end of the base plate 31 via a rotation shaft 32a. A hydraulic cylinder 33 is swingably supported at the base end of the base plate 31 . Further, one end portion of a link 34 is rotatably supported by the protruding portion 24b via a rotation shaft 34a. The other ends of the link 32 and the link 34 and the tip of the hydraulic cylinder 33 are rotatably supported via a rotation shaft 33a. On the other hand, Bolster 11
Base plate 3 provided on the other side (Figure 4)
5, protrusions 25a and 25b are connected to a rotation shaft 36a.
, 36b, and are rotatably supported.

In the above configuration, when the piston rod of the hydraulic cylinder 33 extends to the right, the rotation shafts 32a, 3
3a and 34a are located on the same straight line, and the line connecting the rotation shaft 31a and the rotation shaft 34a is located substantially horizontally to the floor surface. At this time, the upper end surface 22a of each roller 22 constituting the conveyor 2 and the lower die setting table 1
It is substantially flush with the upper end surface 12a of 2. When the piston rod is contracted leftward from this state, the rotating shaft 33a approaches the hydraulic cylinder 33 side, and as shown in FIG. 5, the conveyor 24 moves clockwise from the rotating shaft 31a. It rotates approximately 90 degrees and is folded downward. Thereby, workability on the front side of the press device 1 can be ensured in operations other than mold replacement work.

When the conveyor 2 is connected to the press device l, as shown in FIG. protrudes towards the side. A gap C between the rollers 22 is located at the right end of the conveyor 2 and on the extension line of the first roller conveyor 13, and a second roller conveyor 27 for conveying molds is provided in the gap C. ing. Like the first roller converter hair 13, the second roller converter hair 27 is provided so as to be movable up and down by a hydraulic device (not shown), and is located below (or flush with) the upper end surface 22a of each roller 22 when descending. Then, the press device 1 in the conveying con hair 2 including the second coro con hair 27
A first space Sl in which the replacement mold 5 is placed is formed at a location in front of the mold (two-dot chain line in FIG. 2) attached to the mold. On the other hand, a second space S in which a replacement mold 6 is placed is formed at a location adjacent to the first space S at the left end of the conveyor 2 .

Note that a slight gap is formed between each conveyor 2.

The carry-in/out conveyor 4 is a transfer conveyor except that the second roller conveyor 27 is not provided and that it is not installed on the press device 1 but is installed on the floor via a pedestal (not shown). It is configured similarly to 2. however,
The right end of the loading/unloading conveyor 4 extends to a mold storage (not shown).

Next, the mold replacement work will be explained.

First, as shown in FIG. 3, the hydraulic cylinder 33 of each link mechanism 3 is extended to the right, and the upper end surface 22a of each roller 22 constituting the conveyor 2 and the upper end surface 12a of the lower die setting table 12 are connected to each other. Make sure it is almost flush.

Next, the replacement molds 6 taken out from the mold storage (not shown) are sequentially placed on the loading/unloading conveyor 4 in a driven state.

In this case, it goes without saying that the replacement molds 6 to be used are placed in the leftmost press device 1 in FIG. 1 in order.

The replacement molds 6 placed one after another on the loading/unloading conveyor 4 are
They are automatically transported toward the second space S, respectively. Each replacement mold 6 is a second space S.

, each detection switch is operated in sequence to stop the drive of each conveyor 2. As a result, each replacement mold 6 is placed in the second space S, as shown in FIG. 6.

Next, after completing the press work for each mold 5 to be replaced,
Each press device 1 is stopped. Next, each lower mold setting table 12
Remove the clamp 14 and release the seven slots of the lower mold 51 to be replaced. Thereafter, the ram (not shown) of each press device l.

) is lowered, and the lower surfaces of the upper molds 52 to be replaced set on each ram are respectively placed on the upper surfaces of the lower molds 51 to be replaced (see FIG. 3). Next, the upper die 52 for each to be replaced and the ram are released from being set. Next, each first corrugated hair 13 and second corrugated hair 27 are raised. At this time, 1st Corocon Hair 13! The upper end surfaces of the two-column hairs 27 are flush with each other.

By raising each first roller conveyor 13, the lower mold 5
Each mold 5 to be replaced with the upper mold 52 placed on the mold 5 is lifted upward. At this time, the first roller conveyor 13
The upper end surface is located above the upper end surface 12a of the lower mold set table 12 and supports the mold 5 to be replaced. From this state, each mold 5 to be replaced is moved in the direction of the first space S1 and positioned in each of the first spaces S1. At this time, the second
The upper end surface of the roller con hair 27 is the upper end surface 22 of each roller 22.
It is located above point a and supports the mold 5 to be replaced.

Next, only the second roller conveyors 27 are lowered to place the replacement molds 5 in the first spaces S (see FIG. 7). Next, the conveying container hair 2 is reversely driven to move the replaced mold 5 and the replacement mold 6 placed in the first space S1 and the second space S, respectively, in the direction of the carrying-in/out container hair 4. let And each replacement mold 6
is located in the first space SI, each conveyance hair 2
Stops driving. As a result, each replacement mold 6 is placed in the first space Sl, as shown in FIG.

Next, each second roller conveyor 27 is raised again to lift each replacement mold 6 upward. And each replacement mold 6
are moved on the second roller conveyor 27 and the first roller conveyor and positioned on each lower mold setting table I2 (see FIG. 9). Hereinafter, the replacement mold 6 is attached to the press apparatus 1 by the reverse method of removing the replacement mold 5 from the press apparatus 1.

Next, after lowering the second coffering hair 27, the six conveying conveyor hairs 2 are reversely driven again to automatically convey each mold 5 to be replaced in the four directions of the loading/unloading hair. Loading and unloading 4
The molds 5 to be replaced that have reached this point are sequentially stored in the mold storage.

Finally, as shown in FIG. 5, the piston rods of each hydraulic/linter 33 are contracted to fold each conveying conohair 2 downward. This completes the mold replacement work.

When the mold conveying conhair device with the above configuration is used in multiple press devices, it is no longer necessary to go back and forth between the mold storage and the press devices for the number of press devices, which is required in the past. can be done in a short time. Therefore, it becomes possible to significantly improve the operating efficiency of the press device.

The present invention is not limited to the above embodiments, and can be modified without departing from the gist of the present invention.

For example, in this embodiment, the upper end surface 22a of each roller 22 constituting the conveyor 2 is made horizontal with the floor surface, or in some cases, as shown in FIG. It is also possible to make the section slightly inclined downward and to provide a plurality of roller conveyors R on the inner surface of the right side. In this way, each replacement mold 6 slides to the right and is placed neatly along the right side of each conveyor container 2. Therefore, positioning work when placing the replacement mold 6 on the carry-in/out conveyor 4 becomes easy.

Further, in this embodiment, the press device 1 and the conveyor 2 are connected by a link mechanism 3, and the hydraulic cylinder 33 of this link mechanism is contracted so that the conveyor 2 can be folded only downward. However, it is not necessarily limited to this. For example, as shown in FIG. 11, a motor M and a worm reducer W may be installed on one side of the press apparatus l, and the conveyor feeder bearer 2 may be erected upward. It is possible.

That is, the rotation shaft 2 connecting the press device 1 and the conveyor 2 is connected to the output shaft (not shown) of the worm reducer W.
a and by rotating this rotating shaft 2a, the conveying conhair 2 is made to stand upward. In this case, since the conveyor conhair 2 standing upright is located in front of the press work section G, the conveyor conhair 2 can be used as a safety shelf.

Furthermore, in this embodiment, a case is taken as an example in which the conveying conhairs 2 constituting the mold conveying conhair device K are arranged in a straight line on the front side of a plurality of press devices L arranged in parallel in the horizontal direction. However, it is not always necessary to do this, and depending on the installation state of the plurality of press devices 1, it is also possible to arrange the 72 in a curved line on each conveyor.

Furthermore, in this embodiment, the conveyor 2 and the carry-in/out conhair 4 that constitute the mold conveying conveyor device K are provided with a drive device to enable automatic conveyance of the molds, or it is not necessarily necessary to provide a drive device. When a drive device is not provided, the molds placed on the conveyor 2 and the carry-in/out conveyor 4 are pushed by hand and conveyed.

[Effects of the Invention] As explained above, according to the mold conveying conhair device of the present invention, the molds to be replaced that have been removed from each press device are placed in front of the molds to be replaced that are attached to a plurality of press devices. A first space is provided for placing a replacement mold, and a second space is provided for placing a replacement mold to be attached to the plurality of press devices at a location adjacent to each first space on the same side. Since the mold loading and unloading section is provided at one end in the conveying direction, mold replacement work can be carried out in a short time, and the operating efficiency of the press apparatus can therefore be improved.

[Brief explanation of the drawing]

1 to 9 show an embodiment of the present invention,
Fig. 1 is a plan view showing a mold conveyor device according to the present invention installed in a plurality of press machines, Fig. 2 is a partial detailed view of Fig. 1, and Fig. 3 is viewed from the ■ arrow in Fig. 2. Figure 4 is a view in the direction of the ■ arrow in Figure 3, Figure 5 is a diagram showing the state in which the conveyor container is folded, and Figure 6 is a plan view showing the state in which the replacement mold is placed in the second space. Figure 7 shows the mold to be replaced in the first position.
Fig. 8 is a plan view showing the replacement mold placed in the first space;
FIG. 9 is a plan view showing a state in which the replacement 141 is attached to a press device, and FIG. 1θ and FIG. 11 are views showing other examples of actual guns.

Claims (1)

[Claims] In a mold conveyor device that is installed along the front of a plurality of press devices installed side by side and that conveys molds used in each press device, a mold to be replaced that is attached to the plurality of press devices. A first space is provided in front of each press device to place a mold to be replaced that has been removed from each press device, and a first space is provided in front of each press device to place a mold to be replaced, and the mold is attached to the plurality of press devices at a location adjacent to each first space on the same side. A mold conveyor device, characterized in that a second space for placing a replacement mold is provided, and a mold carrying-in/out section is provided at one end in the conveying direction.