JPH0445852Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vulcanization press apparatus for rubber molded products such as anti-vibration rubber.

[Conventional technology]

A conventional vulcanizing press device includes an upper frame and a lower frame fixed to a support at intervals, an upper mold fixed to the lower surface of the upper frame, and a lower mold fixed to a lower movable plate opposite to the upper mold. It consisted of a drive cylinder that moved the lower movable plate to which the lower mold was fixed up and down along the support column.

Therefore, a mold disassembly device is provided in which the mold is clamped and opened by moving the lower movable plate up and down, and the entire lower mold holding the molded product from the opened mold is installed outside the vulcanization molding device. Move horizontally to the
At this point, the lower mold was disassembled and the molded product was released and taken out.

In this way, with conventional vulcanization press equipment, a separate mold disassembly device must be installed even for a simple mold, and therefore a large space is required to install the mold disassembly device in the lateral direction of the vulcanization press device. It was necessary. Furthermore, the mold disassembly device is complicated and requires a large amount of equipment cost, and it is difficult to grip and automatically take out the molded product. Furthermore, since the entire lower mold is taken out, the lower mold tends to get cold easily, resulting in a large loss of thermal energy.

[Problem that the invention attempts to solve]

It is an object of the present invention to provide a vulcanizing press device which can reduce the space required for mold disassembly by providing a mold disassembly mechanism in the device itself, and which is easy and efficient in disassembling the mold.

[Means for solving problems]

The vulcanizing press device of the present invention consists of an upper frame and a lower frame arranged vertically at intervals, a column to which the upper frame and the lower frame are fixed, and a structure in which the upper frame and the lower frame are arranged around one column. A rotary plate supported so as to be rotatable only, a lower movable plate provided between the rotary plate and the lower frame so as to be movable up and down along a support, a drive cylinder connected to the lower movable plate by a ram, and an upper frame. A mold is provided facing the lower movable plate, and when the mold is opened, the part of the mold that holds the molded product is moved up and down along the support between the upper frame and the rotary plate. It is characterized in that it is rotatably supported together with a rotary plate on one support.

〔Example〕

An embodiment of the device of the present invention will be described with reference to the drawings.

As shown in FIG. 1, an upper frame 2 and a lower frame 3 are spaced apart from each other and are fixed by two pillars 1. A runner plate 4 is fixed to the lower surface of the upper frame 2 so that an injection nozzle (not shown) can come into contact with it from above. An upper mold 5 is held on the lower surface of the runner plate 4 by a suspension bolt 6' so as to be elastically resilient by a spring 6.

A rotary plate 7 is rotatably supported around one support 1 between the upper frame 2 and the lower frame 3. A middle mold 8 is provided between the rotary plate 7 and the upper mold 5 and faces the upper mold 5 for holding the molded product when the mold is opened. A sliding part 9 made of an oil-impregnated alloy is formed at one end of the medium 8 to attach the medium 8 to a support 1 provided with a rotary plate 7. It is movable and rotatably supported around the column 1. A locking pin 10 is provided protruding from the upper surface of the rotary plate 7, and is fitted into a hole drilled in one end of the medium die 8 to connect the medium die 8 and the rotary plate 7.
and are designed to rotate together.

A lower movable plate 11 is provided between the rotary plate 7 and the lower frame 3 so as to be movable up and down along the support column 1.
A lower mold 12 having a core portion 13 is fixed to the upper surface of the lower movable plate 11 so as to face the middle mold 8. Further, the lower movable plate 11 is connected to the drive cylinder 14 by a ram 15.

Although the number of supports 1 may be three or four, the apparatus can be made most compact by installing two supports diagonally on the lower frame 3 as in the embodiment.

[Effect]

When clamping the mold, the drive cylinder 14
When the lower movable plate 11 is raised, the lower mold 12 comes into contact with the middle mold 8 whose descent is prevented by the rotary plate 7, and the middle mold 8 slides on one support 1 with the sliding part 9 while lower mold 12 rises with. The rising middle mold 8 comes into contact with the upper mold 5, and the lower movable plate 11 further rises and touches the upper mold 5.
is brought into contact with the runner plate 4, and the entire mold is pressurized and clamped. In this state, an injection nozzle (not shown) descends from above and injects the raw rubber through the runner into the cavity of the mold to perform vulcanization.

Next, in order to open the mold, the lower movable plate 11 is lowered by the drive cylinder 14. First, the upper mold 5 springs down by the spring 6 and descends, but its descent is restricted by the hanging bolts 6' and separates from the middle mold 8 and the like.
The middle mold 8 that descends together with the lower mold 12 has a locking pin 10 of the rotary plate 7 fitted into a hole drilled at one end thereof, and then comes into contact with the rotary plate 7 to stop the lower mold 8 from descending. It is separated from 12. The lower die 12 further descends and stops.

As shown in FIG. 2, a crank arm 17 is fixed to the rotating plate 7 and connected to a cylinder (not shown) via a connecting rod 16. Therefore, by pulling the connecting rod 16 with the cylinder, the medium 8 connected to the rotary plate 7 by the locking pin 10 rotates around the support 1 by the sliding part 9 as shown by the two-dot chain line.
It is rotated to the outside of the device and mold disassembly is completed.

In addition to the crank mechanism shown in Figure 2, a device that rotates the part that holds the medium-sized or molded product and takes it out is a device that has a gear formed on the outer circumference of a rotating plate and connected to a motor. Various devices such as rotating with another gear can be applied.

Since the area around the middle mold 8 which has been disassembled and rotated to the outside of the apparatus is a free space, a take-out hand or the like that grasps and releases the molded product from the middle mold 8 is installed to easily take out the molded product. is possible.

[Effect of idea]

According to the vulcanizing press device of the present invention, the part of the mold that holds the molded product is supported by the support so that it can rotate around one of the supports and can move up and down, making it difficult to disassemble the mold. without the need for equipment,
The mold can be easily disassembled by simply rotating the opened part of the mold outward.

Moreover, since the movement gap of the part that holds the molded product is extremely small, the device itself can be made compact, and the conventional mold disassembly device is not required, so the installation space can be significantly reduced. In addition, since the area around the device is free space, it is also possible to install automatic mold release means such as an auto hand to automatically take out the molded product from the part that holds the molded product as it rotates around the support. be.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing a specific example of the device of the present invention, and FIG. 2 is a cross-sectional view of a middle-sized portion of the device shown in FIG. 1... Support column, 2... Upper frame, 3... Lower frame, 5... Upper die, 7... Rotating plate, 8... Medium size,
9... Sliding part, 10... Locking pin, 11... Lower movable plate, 12... Lower die, 14... Drive cylinder.

Claims (1)

[Scope of utility model registration request] An upper frame and a lower frame arranged vertically at intervals, a column to which the upper frame and lower frame are fixed, and 1 frame between the upper frame and the lower frame.
A rotary plate rotatably supported around two pillars, a lower movable plate provided between the rotary plate and the lower frame so as to be movable up and down along the pillars, and a drive cylinder connected to the lower movable plate by a ram. , a mold provided opposite to each other between an upper frame and a lower movable plate, and a part of the mold that holds the molded product when the mold is opened is supported between the upper frame and the rotary plate. 1. A vulcanizing press device, characterized in that it is movable up and down along the same axis and is rotatably supported together with a rotary plate on one support.