JP2001058298A - Press device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in workability represented in carrying in/out of a pressure die. SOLUTION: A press device 3 is provided with a bed 4 of a roughly rectangular shape in plane view with loading a press die 1 of a roughly cubic body, columns 2, 2 which are erect on the bed 4 and, support a crown above, and a ram 6, which is elevated along the columns 2, 2 and impresses a press pressure on the press die, the columns 2, 2 are diagonally arranged in two pieces, a roller is mounted to the end part for a column of the ram 6, the ram 6 is elevated through the roller along the columns 2, 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press for facilitating handling of a press die.

[0002]

2. Description of the Related Art A press device using a hemming type (press type) includes a substantially rectangular bed in which a substantially rectangular parallelepiped press die is mounted, a column which stands on the bed and supports a crown upward, and And a ram that moves up and down along the columns and applies a pressing pressure to the press mold. Above the bed,
There are crowns supported in the bridge structure by columns. Conventionally,
In order to stably support the ram, the crown arranged pillars on all sides with respect to the bed on which the press mold was mounted, and the press mold was carried into the bed from between any of the pillars.

[0003]

In the conventional press apparatus as described above, the distance between the columns directly limits the size of the press die. Therefore, in order to use a large press die, the distance between the columns must be increased. Normally, since the crown is provided with the arranged pillar as the outermost contour, if the spacing between the pillars is large, the crown itself will be enlarged, and the pillar will become thicker for the purpose of securing the support strength of this enlarged crown, and further pressing will be performed This has led to an increase in the size of the equipment, which has caused problems in securing installation locations and limiting the degree of freedom in the layout of the production line. In addition, the problem that the columns are thickened has caused restrictions on the size of the press die to be carried into the bed, and also has involved labor and difficulty in carrying in the work. In particular, a problem arises in the case of a press die having a multi-stage structure that is enlarged. Then, in order to solve such a problem in the conventional press device, studies were made.

[0004]

As a result of the study, a bed having a substantially rectangular parallelepiped press die mounted thereon, a substantially rectangular bed in plan view, a column which stands upright on this bed and supports the crown upwards, And a ram for applying a pressing pressure to a press mold, wherein the number of columns is two or three, a roller is attached to an end of the ram with respect to the column, and the roller is interposed with the column to mount the ram. A press device that moves up and down along with was developed. The rollers of the ram interposed on the column ensure the stability of the ram ascending and descending along the column, which is less than in the prior art.

According to the present invention, the number of pillars is reduced, so that the supported crown is reduced, and the size of the press device is reduced. 2 or 3
Regardless of the arrangement of the pillars, the spacing between any of the pillars can be larger than that between conventional pillars, which reduces the restrictions on the size of the press die that can be loaded into and unloaded from the bed. Work effort is reduced, and the degree of freedom in carrying in work is increased. In addition, when a plurality of press devices are installed in parallel, a work space required for loading or unloading the press die to or from each press device is secured, so that the press devices can be arranged closer to each other than before, and the press device can be installed. Location is reduced,
The degree of freedom in the layout of the production line also increases.

[0006] In the simplest case, one pillar is used instead of four pillars.
It is advisable to thin out the pillars only for books. Specifically, two or three pillars allocate at least one pillar to a position corresponding to the corner of the bed. In this case, specifically, of the three pillars, two pillars are disposed at both corners of one side of the bed, and the remaining one pillar is disposed substantially at the center of the facing side. An example of a shape arrangement relationship can be given.

Since it is preferable that the number of columns is smaller, it is conceivable to use two columns. Specifically, two pillars are assigned to corresponding positions on the diagonal of the bed. One pillar in reality
It is unlikely to make a book, and the arrangement relationship of arranging two pillars on the diagonal line of the bed has the least number of pillars and is ideal. In this case, the loading and unloading work is the simplest because the press die can be loaded onto the bed from between the columns, that is, from the diagonal direction of the bed.

Conventionally, a press brake having two columns has been used as a press apparatus dedicated to bending a long sheet metal. However, in the arrangement relationship of the columns parallel to the vertical or horizontal direction of the press die, the distance between the columns is wide. Can not do it. On the other hand, in the press device of the present invention, the columns are provided at positions corresponding to the corners of the bed, and are preferably arranged at diagonal positions, so that the space between the columns is increased. To the press-type bed easily.

[0009] The reduced number of pillars supporting the crown also facilitates the work on the press mold on the bed. For this reason, for example, in a press device using a press die having a multi-stage structure, the work of connecting or releasing the upper and lower press dies is also facilitated,
In general, it is possible to improve the working efficiency related to the press working.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view showing a layout in which a press device to which the present invention is applied is provided, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, FIG. 3 is an enlarged view of a portion B in FIG. 2, and FIG. FIG. 5 is a schematic diagram illustrating each press device in a simplified manner to explain loading and unloading of a press die and delivery to an adjacent press device;
FIG. 6 is a schematic diagram illustrating the press machines of another example in a simplified manner to explain the loading and unloading of the press mold and the delivery to the adjacent press machine. FIG. FIG. 4 is a schematic diagram for explaining loading and unloading of a sheet and delivery to an adjacent press device.

In the present embodiment, a type in which the upper die and the lower die that constitute the press die 1 cannot be separated by a connecting tool is laminated in multiple stages.
Further, it is an example of a multi-stage press apparatus 3 in which each of the press dies 1 can be connected so that any one of the upper and lower dies of each of the laminated press dies 1 can be separated and the appropriately usable press dies 1 can be properly used. . In the multi-stage press device 3, the press dies 1 stacked in a multi-stage manner as described above become a heavy object, and carrying in and out of the press device 3 is a difficult operation. In contrast,
The present invention can reduce the labor and labor involved in carrying in and out operations by widening the space between the columns 2 and 2.

The configuration of the press device 3 of the present embodiment will be described. As shown in FIGS. 1 and 2, each press device 3 has two columns 2, 2 arranged on a diagonal line of a bed 4 on which a press die 1 is mounted. The crown 5 is provided so as to extend above the pillars 2 and 2 and a ram 6 (represented by a cylinder shaft in each drawing) is mounted on each pillar with a roller 9 interposed therebetween. In this example, a U-shaped bracket 10 is attached to the end of the ram 6.
The roller 9 is brought into contact with the column 2 from each of three directions of the bracket 10. The rollers 9 enable smooth lifting and lowering of the ram 6 with only the reduced number of columns, and also have a function of a buffer mechanism for preventing vibrations caused by the raising and lowering of the ram 6 and twisting of the columns 2.

A deck 7 for maintenance work and the like is provided on the crown 5, and a ladder 8 is arranged beside the press device 3. Except for the arrangement of the pillars 2 and the size of the crown 5,
It has the same configuration as a conventional press device. However, the crown 5 is smaller than before (the hatched area in FIG. 5).
(Large spacing)), the press device 3 using the press die 1 having a multi-stage structure is downsized.

In this embodiment, as is apparent from FIG. 1, a plurality of press devices 3 are provided side by side so that the beds 4 are in close contact with each other. Since the loading and unloading of the press mold 1 into and out of the bed 4 is improved, the beds 4 can be arranged closely, and as a result, the installation space in the factory can be reduced. Also, when the press devices 3 are densely arranged in this manner,
There is an advantage in that each pressing step in a series of manufacturing steps is assigned to each pressing device 3 so that a distance when a product that has been subjected to the pressing in the previous step is sequentially sent to the next step can be reduced.

FIG. 5 shows an example of loading and unloading of the press die 1 into and out of the press device 3 of the present embodiment. Each press device 3
The arrangement of the columns 2, 2 on the diagonal lines enables the loading of the press die 1 of a size corresponding to the space between the columns 2, 2 of the adjacent press device 3. Also, when the press die 1 is delivered between the adjacent press devices 3, 3, the delivery work is facilitated because there is only one pillar 2 that obstructs the delivery of the press die 1 on each side. Such a situation applies not only to the press die 1 but also to a product to be subjected to press working, so that the entire work of press working can be easily performed.

According to the present invention, by reducing the number of columns of the press device to three or less, the crown 5 to be supported is reduced, and the interval between the columns is increased to improve the loading and unloading of the press die. According to this gist, as shown in FIG. 6, for example, a pressing device 3 having a configuration in which one column is thinned out from four columns 2 in the related art may be used. Pressing device 3 for two columns 2, 2 on the diagonal line illustrated above
Is provided with a large number of press devices 3 arranged in the same direction with the pillars arranged in the same direction (diagonal direction), so that the press die 1 and the loading / unloading of products and the press die 1 between the press devices 3, 3 can be performed.
And the delivery of the product was also easy. The press device 3 illustrated in FIG. 6 has a press die 1 by alternately arranging two types of press devices 3, 3 in which the arrangement of the columns 2 is line-symmetric.
Loading and unloading has been improved.

In the present invention, as long as three or less columns can support the crown 5, the positions of the columns are arbitrary. For example,
As can be seen in FIG. 7, a pressing device 3 in which three columns 2 are arranged in a two-to-one relationship can be exemplified. They are,
Although the loading and unloading of the press die 1 is improved as compared with the conventional press device, it is difficult to transfer the press die 1 or the product between the press devices 3, 3 as in the above examples. However, as is apparent from FIG. 7, the crown 5 becomes smaller (hatched portion (larger gap) in FIG. 7), and as a result, the press device 3 can be downsized.

[0018]

According to the present invention, it is possible to provide a press apparatus which can greatly improve the limitation on the size of a press die which can be used and can improve workability represented by carrying in and out. This is an effect due to the fact that the distance between the columns of three or less is larger than in the past. In addition, there is an additional effect that the crown to be supported is small, and the press device can be downsized.
From these, the securing of the installation location of the press device and the restriction on the degree of freedom of the layout of the production line are released, and a smoother production line can be constructed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a layout in which a press device to which the present invention is applied is provided.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is an enlarged view of a portion B in FIG. 2;

FIG. 4 is a view taken in the direction of arrow C in FIG. 3;

FIG. 5 is a schematic diagram illustrating each press device in a simplified manner to explain loading and unloading of a press die and delivery to an adjacent press device.

FIG. 6 is a schematic diagram illustrating each press device of another example in a simplified manner to explain loading / unloading of a press die and delivery to an adjacent press device.

FIG. 7 is a schematic diagram illustrating a press device of another example in a simplified manner to explain loading and unloading of a press die and delivery to an adjacent press device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Press type 2 pillar 3 Press device 4 Bed 5 Crown 6 Ram 7 Deck 8 Ladder

Claims (3)

[Claims] 1. A bed having a substantially rectangular parallelepiped press die mounted thereon and having a substantially rectangular bed in plan view, a column erected on the bed and supporting a crown upward, and a pressing pressure which rises and falls along the column and presses the press die. And a ram for applying pressure.
A press device comprising two or three pillars, a roller attached to the end of the ram with respect to the pillar, and the ram being moved up and down along the pillar with the rollers interposed. 2. The method according to claim 1, wherein at least one of the two or three pillars is assigned to a position corresponding to a corner of the bed.
The press device as described. 3. The press apparatus according to claim 1, wherein the two columns are assigned to positions corresponding to diagonal lines of the bed.