JPH05220720A - Press - Google Patents

Abstract

PURPOSE:To provide a press, in which a charger can prevent from being crushed through the lowering of an upper mold by its own weight. CONSTITUTION:In the press concerned, an upper mold 2 is mounted to housings 4, each of which vertically slidably and externally fitted onto each guide bar 5 disposed upright, when power supply stops under the condition that the upper mold 2 is raised, an emergency locking member 14 is pressed against the outer periphery of the guide bar 5 by a spring 10 in a cylinder 9, resulting in preventing the upper mold housings 4 from lowering and the upper mold 2 from falling down by its own weight.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a pressing device.

[0002]

2. Description of the Related Art Conventionally, a press machine used for press-forming a tile has a structure as shown in the schematic diagram of FIG. A space for filling B is formed, and the horizontally moving charger 3 is moved to this space side, and the tile particles B are filled on the upper surface of the lower mold 1 by the charger 3, and the charger 3 is moved to the right side in the figure in that state. After moving, the upper mold 2 descends, and the tile particles B are pressed between the lower mold 1 and the lower mold 1 to press-mold the tile. In such a press machine, when a power failure occurs when the upper die 2 is in the ascending state, the upper die 2
However, there is a problem in that the vehicle lowers by its own weight and crushes the charger 3.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned problems of the prior art, and an object thereof is to provide a press device which does not cause damage to the charger even during a power failure. In a press device in which an upper die is connected to a housing fitted to a vertically installed guide bar so as to be vertically slidably movable, when the upper die is in a raised state and a power failure occurs, the lock member is guided by a spring force. A cylinder is provided which is pressed against the outer circumference of the bar and prevents the lowering of the housing.

[0004]

[Function] When the upper die is in a raised state and a power failure occurs, the cylinder is actuated by the spring force to press the lock member against the outer periphery of the guide bar, the lock member stops the housing from descending, and the upper die descends due to its own weight. Be blocked.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration perspective view around the upper mold of the pressing apparatus. The upper mold 2 is connected to the upper mold housings 4 and 4 on both sides thereof, and the upper mold housings 4 and 4 are arranged side by side. The guide bars 5 and 5 provided opposite to each other are fitted onto the guide bars 5 and 5 so as to be vertically slidable, and the base housings 6 and 6 are fitted onto the lower portions of the guide bars 5 and 5.

In this example, a fixed plate 7 is fixedly mounted on the machine frame, and a cylinder 9 is attached to the lower end of a bolt 8 attached to the fixed plate 7, and a spring is provided in the cylinder 9. 10 is built in, and in the cylinder 9,
An air hose 11 having an electromagnetic valve 16 for supplying air pressure from the outside is connected, and normally, the air pressure is supplied from the air hose 11 to the inside of the cylinder 9 so that the spring 10 is pressed. The rod 12 of 9 is maintained in a state of being drawn into the cylinder 9. Further, an emergency lock member 14 is attached to the tip of the rod 12 in an upright manner via an L metal piece 13.

A support link bar 15 is rotatably attached to the fixed plate 7, and the support link bar 15 is provided.
Is connected to the L metal piece 13 to support the emergency lock member 14. In such a structure, the upper mold 2
Is in an ascending state, and if a power failure occurs at that time, the solenoid valve 16 is switched by the power failure and the supply of air pressure to the air hose 11 is interrupted, and at the same time, the biasing force of the pressed spring 10 is superior. The rod 1 is driven by the urging force of the spring 10.
2 is extended outward, whereby the support link bar 15 is rotated, and the emergency lock member 14 is pressed against the outer periphery of the guide bar 5 in a contact state. The inner peripheral surface of the emergency lock member 14 may be formed into a curved surface corresponding to the outer peripheral surface of the guide bar 5.

In this way, when the emergency lock member 14 contacts the outer periphery of the guide bar 5 via the cylinder 9,
Even if the upper mold 2 is lowered by its own weight, the upper mold housing 4 contacts the upper end of the emergency lock member 14,
Is sandwiched between the base housing 6 and the upper mold housing 4,
In this state, the lowering of the upper mold housing 4 stops and the upper mold 2
Is prevented from falling. Therefore, even when the charger 3 is present below the upper mold 2, the lowering of the upper mold 2 is stopped, so that the charger 3 is not crushed.

When the power failure is released, air is pumped into the cylinder 9 from the air hose 11, so that the spring 10 is pressed again and the rod 12 contracts, and the emergency lock member 14 automatically moves from the guide bar 5. Be separated.

As described above, in the press apparatus of this example,
When the upper mold 2 is in the raised state, even if a power failure occurs, the emergency lock member 14 prevents the upper mold 2 from being lowered, so that the safety is improved and the damage of the charger 3 is favorably prevented.

[0011]

The present invention relates to a press device in which an upper die is connected to a housing fitted to a vertically installed guide bar so as to be vertically slidable and movable, and when the upper die is in a raised state and a power failure occurs, Since the lock member is pressed against the outer circumference of the guide bar by the spring force to prevent the housing from descending, the cylinder is operated by the spring force when a power failure occurs in the upper mold rising state, and the lock member Is pressed against the outer periphery of the guide bar, and the lowering of the housing and the upper mold is well prevented, and an accident in which a charger or the like located below the upper mold is crushed by the upper mold during a power failure is avoided, and safety is enhanced.

[Brief description of drawings]

FIG. 1 is a perspective view of a schematic configuration around a top die of a press device.

FIG. 2 is a schematic configuration diagram of a press device.

[Explanation of symbols]

 1 Lower mold 2 Upper mold 3 Charger 4 Upper mold housing 5 Guide bar 6 Base housing 7 Fixing plate 9 Cylinder 10 Spring 11 Air hose 12 Rod 14 Emergency lock member 15 Support link bar 16 Solenoid valve

Claims (1)

[Claims] 1. A press device comprising an upper die connected to a housing fitted to an upright guide bar so as to be slidably movable in the vertical direction.
A press device comprising a cylinder that presses a lock member against the outer periphery of the guide bar by a spring force to prevent the housing from descending.