JPH022495Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] A press machine that requires changing to molds of various sizes.

[Prior Art] In order to automate and save labor in changing molds in press machines, the applicant and others have been using the
We have developed a mold changing device as shown in Publication No. -48535. This is equipped with a mold transfer trolley on one side of the press machine, and the trolley has a conveyor that can pull out the molds placed in the press machine onto the trolley, or push out the molds on the trolley into the press machine. The means were provided.

[Problems with the conventional technology] The size of the molds set in a press machine varies, but in a system that automates and saves labor for mold replacement as described above, all molds are of the same size. It is convenient to fix a plate (hereinafter referred to as a common plate) and use this common plate as a guide when moving the mold, to detect the moving end, or to fix it to a press machine. It was made to fit the largest of the many types of molds available. However, there was a problem in that even a small mold would require a large storage space.

[Purpose of the invention] The main purpose of the invention is to solve the conventional inconvenience when installing a common plate, such as requiring a large storage space even for a small mold.

[Means for achieving the purpose] In a press machine that incorporates a die lifter that floats and supports a mold in a bolster and moves it in the horizontal direction, a pair of sub-bolters in the form of constant-thickness plates are installed on both sides of the upper surface of the bolster, relative to each other. A common mold is fixed so that the inner edge thereof is parallel to the die lifter, and has the same thickness as the sub-bolster and a width that allows the various types of molds to be set in the press to be carried in by sliding between the two sub-bolsters. Fix each to the plate.

[Embodiment] Figs. 1 to 3 show an embodiment of the present invention. In the figures, 1 is a press main body formed by supporting columns 2, 2 on both sides, and 3 is a bolster thereof. Bolster 3
Two die lifters 4, 4 are installed in parallel therein. The die lifters 4, 4 each have a plurality of roller rollers 5, 5, . The mold 9 can be floated and supported on the die lifters 4, and can be moved horizontally along the die lifters 4 by sliding of the rollers. In addition, the bolster 3
In addition to the die lifters 4, 4, a clamper for fixing the mold 9 on the bolster 3, a positioning pin, etc. are provided, but these are not shown.

Therefore, in the present invention, a pair of sub-bolsters 6, 6 in the form of plates of constant thickness and rectangular in plane are fixed to both side edges of the upper surface of the bolster 3 so that their opposing inner edges 7, 7 are parallel to the die lifters 4, 4. Then, a common plate 8 having the same thickness as the sub-bolsters 6 and a width that can be slid between the two sub-bolsters 6 and carried in is fixed to the mold 9. Although the molds 9 are of various sizes and have various width dimensions W, a common plate of the same shape is fixed to all replacement molds to be installed in this press machine.

In the press mold setting device configured in this manner, in the case of a mold having a width larger than the common plate 8, both side edges of the mold protruding from the common plate 8 are supported on the sub-bolsters 6, 6. Ru. (See Figure 3). Therefore, even if a small common plate is fixed to the mold, the load applied to the mold during press operation is shared by the common plate 8 and the sub-bolsters 6, 6, so a sufficient support area is secured and support is maintained. Power is never unstable. Further, in the case of a small mold, as shown by the dashed line in FIG. 3, the mold does not fit over the sub-bolsters 6, 6. Note that when the common plate 8 is supported by the die lifters 4, 4 and carried in or out on the bolster 3, the edges on both sides of the common plate 8 slide against the opposing inner edges of the sub-bolsters 6, 6, so that the common plate 8 is prevented from shifting laterally. The mold can be moved.

In the embodiment shown in FIG. 4, in addition to fixing the sub-bolsters 6, 6 on both side edges of the bolster 3 as described above, a plate-shaped sub-bolster 10 of the same thickness is further provided on the rear side edge. It is fixedly installed,
In this way, in the case of a large mold, the load can also be shared on this sub-bolster 10, making the support even more stable.

[Effect of the invention] Even if a small common plate is fixed to molds of various sizes, the load is shared by the sub-bolster, so the mold size can be reduced by attaching a large common plate to each mold. An increase in storage space can also be avoided. Furthermore, since both side edges of the common plate serve as guides to allow the mold to be carried in and out of the bolster correctly, there is no need to precisely process the outer surface of the mold itself to create guide portions. Furthermore, unnecessary increases in weight can be suppressed, materials can be saved, and costs can be reduced.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, in which Fig. 1 is a front view of the main parts, Fig. 2 is a plan view of the bolster, Fig. 3 is an operating state diagram of Fig. 1, and Fig. 4 is a diagram of another embodiment. It is a top view of the bolster which showed the example. 1...Press machine body, 3...Bolster, 4,4
... Die lifter, 6, 6 ... Sub-bolster, 7,
7...Inner edge, 8...Common plate, 9...Mold.

Claims (1)

[Scope of utility model registration request] In a press machine that incorporates a die lifter that floats and supports a mold in a bolster and moves it in the horizontal direction, a pair of sub-bolsters in the form of constant thickness plates are installed on both sides of the upper surface of the bolster, and their opposing inner edges are parallel to the die lifter. The various types of molds to be set in this press are fixed to common plates that have the same thickness as the sub-bolsters and have a width that allows them to be carried in by sliding between the two sub-bolsters. Featured press mold setting device.