JPS5941813B2 - Automatic feeding and discharging device in press machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic feeding and discharging device in a press.

Conventionally, various types of automatic feeding and discharging devices have been proposed in order to ensure the safety of press operations, but all of them have the drawbacks of complicated structures and high equipment costs.

The object of the present invention is to provide an automatic supply and discharge device that is simple in structure, easy to handle, and has low equipment costs.

A feature of the present invention is that a drive device is used to reciprocate between the lower plate of the press and a supply table connected to the front of the lower plate so as to be on the same horizontal plane as the lower plate. The rectangular sliding frame is provided with a U-shaped supply frame, and an inverted U-shaped discharge frame which is pivotably mounted to the rear end of the U-shaped supply frame so as to be able to be launched. When the rectangular sliding frame moves forward, the processed product of the sub-soil processed in the previous press process is discharged to the rear of the press machine by the discharge frame, and at the same time, it is covered with the supplied white clay. Caloe material is supplied to the subsoil by a supply frame, and when the rectangular sliding frame moves back, a discharge frame is launched onto the subsoil of the processed product by a launching device.

Hereinafter, the present invention will be explained in detail with reference to the illustrated embodiments.

In FIGS. 1 to 5, reference numeral 1 denotes a hydraulic press machine, which includes a lower plate 2, a movable plate 4 guided so as to be movable up and down on pillars 3 erected at the four corners of the lower plate 2, and pillars 3. An upper lid 5 fixed to a stop of the upper lid 5, and a cylinder device 6 for lifting and lowering a movable plate attached to the upper lid 5.
It is equipped with

T, 8 is a wear-prevention patch plate polished after quenching,
They are replaceably mounted on the upper surface of the lower board 2 and the lower surface of the movable board 4, respectively. The workpiece material 9 is pressed between the backing plate γ of the lower plate 2 and the backing plate 8 of the movable platen 4. Reference numeral 10 denotes a supply stand connected in front of the lower plate 2, and the feed stand 10 and the backing plate T of the lower cover 2 are substantially on the same horizontal plane.

Reference numeral 11 denotes a rectangular sliding frame, which is configured to reciprocate over the supply table 10 and the backing plate T of the lower plate 2 by a drive device 12, such as a hydraulic cylinder device.

The rectangular sliding frame 11 includes a U-shaped supply frame 13 and an inverted U-shaped discharge frame 14, and the inverted U-shaped discharge frame 14 has a pivot pin attached to the rear end of the U-shaped supply frame 13. It is pivoted so that it can be launched at 15. Reference numeral 16 denotes an engaging member protruding from both sides or one side of the discharge frame 14, such as a pin or a roller attached to the pin.

1? is a column-mounted device placed on both side edges or one side edge of the lower panel 2, and as shown in FIGS. 3 to 5, it is an L-shaped member fixed to the side edge of the lower panel 2. It is equipped with a guide rail 19 attached to a stop of 18, and a conversion pawl 20 rotatably pivoted to the L-shaped member 18 at the rear end of the guide rail 19, and supplies the rectangular sliding frame 11. When sliding from the stand 10 onto the backing plate 7 of the lower board 2, the engaging member 16 pushes the conversion claw 20 as shown by the chain line in FIG. When moving back from the backing plate 7 of No. 2 to the supply table 10, the engagement member 16 rides on the conversion claw 20 and is guided by the guide rail 19, as shown in FIG. It is designed to be lifted upward with the pivot pin 15 as the center.

7 to 10 do not show other embodiments of the soil lifting device, and the soil lifting device 21 in FIG. Conversion pawls 23 and 24 are arranged at the rear end and front end of the guide rail 22, respectively, and the conversion pawl 24 is biased in the horizontal direction by a spring 25.

The soil combing device 26 shown in FIG. 8 includes a guide rail 27 having sloped portions at the front end and the rear end, and is swingably supported on a knife edge 28 disposed at the edge of the lower board 2. In the lifting devices 21 and 26, the engaging member 16 is guided by the guide rails 22 and 27, respectively, so that the ejection frame 14 is lifted onto the ground around the pivot pin 15. ing. The lifting device 29 shown in FIG.
A snap spring 32 is provided at the opening of the cylinder hole 30.
The piston guide plate 33 is fixed by the spring 34, the piston 31 is recessed into the cylinder hole 30, and when the rectangular sliding frame 11 moves back, pressurized air is introduced into the pressure air inlet 35, By projecting the piston 31 downward from the cylinder hole 30 and abutting the lower plate 2, the discharge frame 14 is lifted upward about the pivot pin 15. When using the lifting device 29, the engaging member 16 and the guide rail are unnecessary. The lifting device 36 shown in FIG. 10 has a cylinder 37 attached to the discharge frame 14 with bolts or the like, and is otherwise constructed in the same manner as the lifting device 29. Note that the arrangement position of the hydraulic cylinder device of the drive device 12 may be changed from the position shown in FIG. The lower platen 2 and the movable platen 4 may be connected to the movable frame body, and the lower platen 2 and the movable platen 4 may have a built-in heating device, or the movable platen 4 may be configured in two stages, upper and lower. It may be configured in two lower stages. If the size of the loaded loe material 9 is smaller than the size of the rectangular slide 11, it is advantageous to use adjusting screws 38, 39, as shown in FIG. Next, the operation of the apparatus of the present invention will be explained with reference to FIGS. 1 to 6.

When the movable platen 4 of the press machine 1 is raised as shown in FIG. 1, the workpiece material 9, for example, is placed in the rectangular sliding frame 11 on the supply table 10 as shown in FIG. Put the semi-finished gasket used in the engine cylinder into the drive device 12.
When the rectangular sliding frame 11 is started and slid onto the seven backing plates of the lower plate 2, the rectangular sliding frame 11 enters below the guide rail 19 of the guide device 17, and the engaging member 16 is switched. When the drive device 12 is stopped at the position where the pawl 20 has been pushed up, the conversion pawl 20 descends as shown by the actual gland in FIG.

Through the above operations, the force-receiving H workpiece 9 is transformed into a rectangular sliding frame 1
1 to the backing plate 7 soil of the lower board 2. Then,
Before operating the press 1, the drive device 12 is moved back to move the rectangular sliding frame 11 back to the supply table 10. When the rectangular sliding frame 11 is moved back, the engaging member 16 is moved by the switching claw 20.
6, the inverted U-shaped discharge frame 14 is lifted up as shown in FIG. It remains. Next, when the press machine 1 is operated, the movable platen 4 descends to perform pressing, and then returns to the ground. By repeating the above operations, the products on the backing plate 7 of the lower plate 2 are discharged to the rear of the press 1 by the inverted U-shaped discharge frame 14, and are also discharged by the U-shaped supply frame 13. The workpiece material 9 is supplied to the backing plate 7 of the lower plate 2. In place of the lifting device 17, lifting devices 21, 26, 29, 36
In this case, the supply of the material to be processed and the discharge of the product can be performed automatically in the same manner as described above. As can be easily understood from the above explanation, the present invention is a press machine in which workpiece material is automatically supplied between the lower platen and the movable platen, and the product is automatically discharged. Therefore, the safety of the press operation can be ensured.

A rectangular sliding frame consisting of an inverted U-shaped discharge frame pivoted to the rear end of the U-shaped supply frame is slid back and forth between the lower plate and the supply platform, and the discharge frame is moved back and forth during the return movement. Since the device is designed to be lifted upward, the overall structure of the device is simplified and smaller compared to conventional devices that use a long endless link band to supply and discharge. , complex control and safety devices are not required, resulting in easy handling and low equipment costs.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, in which FIG. 1 is a side view, FIG. 2 is a cross-sectional plan view taken along the line - in FIG. An enlarged plan view of the device, FIG. 4 is a front view on the right side of FIG. 3, FIG. 5 is a longitudinal cross-sectional side view taken along line V-V in FIG.
The figure is an explanatory view of the operation of the soil lifting device, and FIGS. 7 to 10 are longitudinal sectional side views of other embodiments of the soil lifting device. 1: Press machine, 2: Lower plate, 4: Movable plate, 10: Supply table,
11: Rectangular sliding frame body, 12: Drive device, 13: U-shaped supply frame, 14: Inverted U-shaped discharge frame, 15: Pivot pin, 17
, 21, 26, 29, 36. Lifting device.

Claims (1)

[Claims] 1. In a press machine that performs pressing using a lower platen and a movable platen, a supply table is connected in front of the lower plate so as to be in almost the same horizontal plane as the lower platen, and a U-shaped supply frame is used. A rectangular sliding frame body having an inverted U-shaped discharge frame pivotally attached to the rear end so that it can be launched is placed on the supply table, and is moved back and forth between the supply table and the lower plate by a drive device. 1. An automatic feeding and discharging device for a press machine, characterized in that it is slidable and the ejection frame is lifted up via a lifting device during backward movement.