JPS6217134Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a press device that is characterized in that the press mold can be replaced at the same position without the operator moving.

Press molds are made of steel, etc., and are heavy, so replacing them is a hassle. It takes a lot of time to install and remove the press mold from the press machine, which increases the cost of press processing.

This idea was made in view of the above, and consists of a frame installed on both sides behind the main body of the press machine that performs press processing, and a plurality of frames installed at intervals in the vertical direction between the frames placed on both sides. The present invention relates to a press that includes a mold support part, a lifting device for raising and lowering the mold support part, and a mold pressing and pulling device provided behind the mold support part.

Next, an embodiment of the present invention will be described with reference to the drawings. A laterally long bed 1, a laterally long ram 2 arranged parallel to the bed 1, a hydraulic or hydraulic cylinder 3 fixed under the bed 1, A piston 4 partially accommodated in the hydraulic or hydraulic cylinder 3, a bar 5 fixed to the lower part of the piston 4 and arranged parallel to the ram 2, and an end of the bar 5 and an end of the ram 2. The combined rods 6, 6 and the holding parts 7, 7 that hold the rods 6, 6 constitute a press machine main body. Frames 8, 8 each having a U-shaped planar cross section are erected on both sides of the frame, with their openings facing each other. The above frame 8,
Elevating bodies 9, 9 are attached to 8 by pulleys 10 so that they can be raised and lowered freely, and a plurality of plate-shaped mold support parts 11 are installed and fixed at intervals in the vertical direction between the left and right elevating bodies 9, 9. do. As a result, a frame is formed by the elevating body 9 and the mold support section 11, and this frame can be moved up and down between the frames 8, 8. The mold support part 11 is raised and lowered by a lifting device consisting of a cylinder 12 and a piston 13, which are provided upright on both sides of the mold support part 11. For example, a cylinder 1 is placed behind the mold support part 11.
4 and a mold-type pressing device consisting of a piston 15, a pressing part 16 fixed at the tip, and a mold-pulling hook 17 provided with a pin 18 on the side of the pressing part 16.

In the figure, reference numeral 19 is a press rod that rotates the hook 7 so that the hanging part of the hook 17 is removed from the mold when the hook 17 is retracted. Fasten to the side. 21 is a guide rail installed on the bed 1,
Reference numeral 22 denotes a guide rail provided on the mold support part 11, so that when the upper surface of the mold support part 11 is aligned with the upper surface of the bed 1, the guide rail 21 and the guide rail 22 are arranged in a straight line. Make it. 23 is a lower mold, which works together with the upper mold 26 to form one mold. Guides 24 that fit into the guide rails 21 or 22 are provided on both sides of the lower mold 23, and by fitting the guides 24 into the guide rails 21 or 22, the lower mold 23 can be moved over the bed 1 and onto the mold support. It can be supported so that it does not float above 11. 25 is the above-mentioned hook 17 provided on the lower die 23.
The hook 17 is hooked on this hook 25.
By hooking the hook 17 with the piston 15 and cylinder 14, the lower mold 23 can be pulled back from above the bed 1 toward the mold support section 11.

Note that in order to stabilize the position of the lower mold 23 on the bed 1 when carrying out the present invention, although not shown in the drawings, a protruding part is provided on the front side of the bed 1 and press working is performed. This may be done by pressing the lower mold 23 against this abutting portion while the lower mold 23 is being pressed against the abutting portion, and maintaining the compressed state of the lower mold 23 by the pressing portion 16. Also, the lower mold 23 and the bed 1 may be fixed using bolts or the like. This may be done by The lower mold 23 and the upper mold 26 placed above the lower mold 23 are made inseparable by a support rod 27, and a spring 29 keeps the lower mold 23 and the upper mold 2
6, and by inserting a guide pin 31 projecting upward from the lower mold 23 into the guide hole 30 of the upper mold 26, the upper mold 26 can be lowered accurately at all times. Position it directly above the mold 23. Reference numeral 28 is a space that prevents the support rod 27 from colliding with the ram 2 even when the upper mold 26 is lowered to its lowest position, and this space 28 may be provided in the lower mold 23. 32 is a processing lower mold fixed to the lower mold 23, 33 is a processing upper mold fixed to the upper mold 26, and the lower mold 23 and the upper mold 26 are provided with a plurality of processing lower molds 32 and processing upper molds 33, respectively. It may be possible to perform several types of processing with each lower die 23 and upper die 26, and in a press for processing aluminum sash shapes, about 20 sets of machining are performed between one set of lower die 23 and upper die 26. A mold 32 and a lower processing mold 33 may be provided. Although not shown, it goes without saying that the lower die 23 may be provided with a guide or an abutment for the workpiece.

This idea is as described above, and in order to replace the mold placed on bed 1, the mold support part on which no mold is placed among the multiple stages of mold support parts is placed behind the bed, and the mold on the bed is replaced. onto this mold support. After that, the multiple mold supports are raised and lowered so that the height of the mold support on which the molds required for the next processing are placed match the height of the bed, and the molds on the mold supports are placed above the bed. By extruding the mold, it is extremely easy to change molds, and there is no need for transport equipment such as winches or cranes, and workers can manually carry heavy objects from a fixed position without having to move. This has a great effect in that it can prevent dangers and wasted time during transportation.

[Brief explanation of the drawing]

The drawings show examples, and FIG. 1 is a perspective view from the front of a press constructed according to the present invention, FIG. 2 is a perspective view from the back, FIG. 3 is a partially sectional front view, and FIG. 4 is a side sectional view. Figure 5 is a plan view, Figure 6 is a partially enlarged side sectional view when the mold is placed on the holding part, and Figure 7 is a partially enlarged side sectional view when the mold is pushed out onto the bed. be. 1... Bed, 2... Ram, 3... Cylinder, 4... Piston, 5... Bar, 6... Rod, 7... Holding section, 8... Frame, 9... Elevating body, 10... Pulley, 11... Model support part, 12...
Cylinder, 13... Piston, 14... Cylinder, 15... Piston, 16... Pressing part, 17
...Hook, 18...Pin, 19...Push rod, 20
... Base, 21 and 22 ... Guide rail, 23 ...
...Lower mold, 24...Guide, 25...Hook part, 26
...Upper mold, 27...Support rod, 28...Space, 29
... Spring, 30 ... Guide hole, 31 ... Guide pin, 32 ... Processing lower mold, 33 ... Processing upper mold.

Claims (1)

[Scope of utility model registration request] Frames with a U-shaped cross section are installed facing each other behind the press body for press processing, and a plurality of die support sections are installed at intervals in the vertical direction between the frames placed on both sides. . A press which is formed by integrally combining a lifting device for raising and lowering the mold support and a mold pressing and pulling device provided behind the mold support.