JPH06155099A - Press - Google Patents

Abstract

PURPOSE:To improve the transportability of a large press so that a crown can be transported without being divided. CONSTITUTION:The press body 1 consists of a bed 2, an upright 3, an upper frame 4 and a crown 5 in which a slide driving mechanism 8 is incorporated, the bed 2 and the upper frame 4 are connected by a tie rod 6 inserted in the upright 3, further, the upper frame 4 and the crown 5 are connected by another tie rod 9 and a slide cuide 4a guiding the slide moved vertically by the slide driving mechanism 8 is mounted on the upper frame 4. Since the crown 5 can be made smaller and more lightweight by mounting the rigid upper frame 4, the transportation can be executed easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-sized press having improved versatility and transportability.

[0002]

2. Description of the Related Art A conventional press uses a bed a as shown in FIG.
A crown c is placed on an upright b provided upright, and the bed a and the crown c are connected by a tie rod d inserted through the upright b. When the press becomes larger, the bed a and crown c
Also becomes larger, making it difficult to transport to the installation site. For this reason, conventionally, a method has been adopted in which a bed a and a crown c are divided into a plurality of pieces to be manufactured, and these are combined at an installation site to assemble a press.

[0003]

However, since the slide driving mechanism and the like are housed in the crown c, when the crown c is divided into a plurality of parts, the structure of the slide driving mechanism becomes complicated, or the slide driving mechanism is provided. Since the supporting distance of the drive shaft is increased, the gear attached to the drive shaft causes vibration. In addition, the crown c has a large weight in order to increase the rigidity that is reduced by the division, and the increase in the surface area causes noise to be diffused throughout the factory. The present invention has been made in order to improve the conventional problems, and an object thereof is to provide a large-sized press capable of transporting a crown without dividing it.

[0004]

In order to achieve the above-mentioned object, the present invention comprises a press body comprising a bed and an upright, an upper frame and a crown having a slide drive mechanism installed therein, and the space between the bed and the upper frame is within the upright. The upper frame is provided with a slide guide for guiding a slide which is vertically moved by the slide driving mechanism, as well as a tie rod which is inserted through the upper frame and a crown between the upper frame and the crown.

[0005]

[Operation] Since the crown can be miniaturized by the above-mentioned configuration, it is easy to transport, and since it is not necessary to divide the crown into a plurality of pieces, the slide drive mechanism does not become complicated.

[0006]

Embodiment An embodiment of the present invention will be described in detail with reference to the drawings shown in FIGS. 2 is a vertical sectional front view of the press body, and FIG. 3 is a side view of the same. In these figures, 1 is a press body, which comprises a bed 2, a plurality of uprights 3, an upper frame 4 and a crown 5. Uprights 3 are erected on the upper surfaces of both ends of the bed 2, and an upper frame 4 is horizontally installed between the upper ends of the uprights 3. The upper frame 4 has an integral structure, and both ends thereof are joined to both ends of the bed 2 by tie rods 6 vertically inserted into the upright 3.

A slide guide 4a for guiding the vertical movement of the slide 7 is laid vertically in the upper frame 4, and the slide 7 is vertically driven by a slide driving mechanism 8 housed in the crown 5. It has become so. In order to facilitate transportation, the crown 5 is formed to have a smaller width in the front-rear direction of the upper frame 4, is connected to the upper frame 4 by a plurality of tie rods 9 provided at four corners, and the crown 5 is also formed. 5
A pair of eccentric shafts 8a forming the slide drive mechanism 8 are housed therein. The eccentric shaft 8a has a main gear 8b.
Is attached to the main motor (not shown) via the gear train 8c, and the eccentric shaft 8a is rotated by the main motor via the main gears 8b. A connecting rod 8e is supported on the eccentric portion 8d of the eccentric shaft 8a.
The lower end of e is connected to the slide 7 via a plunger 8f, and the slide 7 is vertically driven as the eccentric shaft 8a rotates.

The operation of the press body 1 will be described below.
The bed 2, the upright 3, the upper frame 4 and the crown 5 are separately manufactured at the factory. Bed 2 again
The upper frame 4 is further divided into a plurality of parts as required. The press body 1 manufactured separately as described above is
After being separately transported to the installation site, it is assembled at the installation site as shown in FIGS. 2 and 3, with the tie rod 6 between the bed 2 and the upper frame 4 and the tie rod 9 between the upper frame and the crown 5. Since the tie rods 5 and 9 can be made shorter as compared with the case where the bed 2 and the clan 5 are joined together by the conventional single tie rod, the height of the building at the installation site is low. However, it can be easily assembled.

[0009]

As described above in detail, according to the present invention, since the crown of the conventional press is divided into the upper frame which is a strength member and the crown which houses the slide drive mechanism, the large press is constructed. Even then, it becomes possible to easily transport the crown without dividing it. This makes it possible to eliminate problems such as the structure of the slide drive mechanism housed in the crown becoming complicated, the eccentric shaft supporting distance increasing, and vibrations occurring more easily than the gears. Since the noise does not increase, noise can be reduced. In addition, since the upper frame supports the press load, it is not necessary to increase the rigidity of the crown as in the conventional press, and this makes it possible to reduce the size and weight of the crown and to standardize the bed, upright, upper frame, etc. The versatility is also improved.

[Brief description of drawings]

FIG. 1 is an explanatory view of a conventional press.

FIG. 2 is a vertical sectional front view of a press according to an embodiment of the present invention.

FIG. 3 is a partially cutaway side view of the press according to the embodiment of the present invention.

[Explanation of symbols]

1 ... Press body, 2 ... Bed, 3 ... Upright, 4 ... Upper frame, 4a ... Slide guide, 5 ... Crown, 6
… Tie rod, 8… slide drive mechanism, 9… tie rod.

Claims (1)

[Claims] 1. A press main body 1 comprises a bed 5 and an upright 3, a crown 5 having an upper frame 4 and a slide drive mechanism 8 installed therein, and a tie rod 6 inserted between the bed 2 and the upper frame 4 into the upright 3. The upper frame 4 is provided with a slide guide 4a which guides the slide 7 which is vertically moved by the slide drive mechanism 8 while connecting the upper frame 4 and the crown 5 with another tie rod 9. .