JPS6225354Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a blade contact adjustment device for a flat plate punching machine.

In a flat plate punching machine, the cutting blade is set upright on the lower surface of the fixed upper surface plate via a cutting blade receiving steel plate, and the lower surface plate placed opposite to each other moves up and down, Punching is performed by placing a punching paper between the cutting edge of the surface plate and the lower surface plate. In order to make adjustments to make the blade contact uniform between the cutting blade and the lower surface plate, conventionally, a spacer paper for adjustment is inserted on the back of the cutting blade receiving iron plate, and the cutting blade receiving iron plate and cutting blade are I was adjusting the contact between the blade and the blade. For this reason, it takes time to adjust the blade contact, which does not improve the operating rate of the flat plate punching machine, and there is a drawback that adjustment of the blade contact requires skill. In addition, the degree of contact between the blades changes even when the flat plate punching machine is in operation due to wear of the cutting blades, etc., so it is necessary to stop the flat plate punching machine from time to time to make adjustments, which improves the operating rate. There was a drawback that it could not be done. Therefore, in the present invention, there is a fixed upper surface plate with a cutting blade erected on the lower surface, and a machine that moves up and down and moves the punched paper between the upper surface plate and the lower surface of this upper surface plate. In a flat plate punching machine that has a lower surface plate for punching, a cutting blade receiving iron plate is installed between the lower surface of the upper surface plate and the cutting blade, and a large number of hydraulic pressure plates are installed inside the upper surface plate. It is characterized by consisting of a cylinder, a cylinder rod that presses the cutting blade receiving iron plate by the drive of the hydraulic cylinder, and a pressing piece that is swingably connected to the cylinder rod and fixed to the back side of the cutting blade receiving iron plate. Since it is configured as a blade contact adjustment device for a flat plate punching machine, the blade contact can be easily adjusted by adjusting the adjustment valve of the hydraulic cylinder at the location where the blade contact needs to be adjusted. Furthermore, even when the flat plate punching machine is in operation and the lower surface plate is moving up and down, the blade contact can be adjusted using the adjustment valve while checking the punching condition. In addition, the cylinder rod is swingably connected to a pressing piece fixed to the back side of the cutting blade receiving iron plate, so a certain hydraulic cylinder is driven to move the cylinder rod backward, causing the cutting blade receiving iron plate at a certain location to become concave. In addition, the surrounding pressing piece can be arranged at an angle with respect to the cylinder rod in accordance with the continuous curve of the cutting blade receiving iron plate. Therefore, the blade contact can be adjusted more accurately than when simply pressing the cutting blade receiving iron plate with the tip of the cylinder rod.

An embodiment of this invention will be described based on the drawings. The upper surface plate 2 of the flat plate punching machine is fixedly arranged, a cutting blade receiving iron plate 3 is arranged on the lower surface of this upper surface plate 2, and a wooden pattern 4 is arranged on the lower surface of this cutting blade receiving iron plate 3.
The wooden die 4 is provided with a slit 5 corresponding to the punching die, and a cutting blade 6 having the same shape as the punching die is embedded in the slit 5 and stands upright. is arranged in contact with the cutting blade receiving iron plate 3. A large number of hydraulic cylinders 10 are erected and fixed in a grid pattern inside the upper surface plate 2, and the cylinder rods 12 of the hydraulic cylinders 10 are slidable into through holes 13 formed in the upper surface plate 2. The cylinder rod 12 has a spherical portion 1 at its tip.
4 are arranged. Also, the through hole 13 of the upper surface plate 2
A recess 15 is formed on the lower surface of the recess 15, and a pressing piece 16 whose lower surface is fixed to the cutting blade receiving steel plate 3 is disposed in the recess 15. A ball hole 17 is arranged on the upper surface of this pressing piece 16. A circular spherical portion 14 provided at the tip of the cylinder rod 12 is fitted into the spherical hole portion 17 so as to be able to swing freely. Further, the lower surface plate 20 of the flat plate punching machine is periodically moved up and down by a crank mechanism, and the cutting blade 6 erected on the upper surface plate 2 is moved vertically by a crank mechanism.
The punching paper 1 is disposed between the cutting edge receiving portion 21 on the upper surface of the lower surface plate 20, and the punching paper 1 is punched in a manner corresponding to the punching die.

Next, let's talk about the action of the blade contact adjustment device.
The punching paper 1 is disposed between the cutting blade 6 of the upper surface plate 2 and the cutting blade receiving part 21 of the lower surface plate 20,
0 rises and punching is performed, the pressure piece 16 is moved downward by adjusting the adjustment valve of the hydraulic cylinder 10 at the location where the evacuation pressure is low.
When you press down, the cutting blade receiving iron plate 3 moves its pressing piece 16
Since only the part protrudes, the evacuation pressure at that part can be increased. On the other hand, if there is a location where the punching pressure of the punched paper 1 is high, the adjustment valve of the hydraulic cylinder 10 disposed at that location is adjusted, the cylinder rod 12 is moved upward, and the pressure piece 16 is pulled. Since the cutting blade receiving iron plate 3 is concave only at the location of the pressing piece 16, the evacuation pressure at that location can be reduced. This adjustment of the punching pressure of the punched paper 1 can be performed even while the flat plate punching machine is in operation.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the upper and lower surface plate portions of the flat plate punching machine, and FIG. 2 is a partial sectional view of the cutting blade receiving iron plate and the pressing piece portion. 1... Punching paper, 2... Upper surface plate, 3... Cutting blade receiving steel plate, 4... Wooden mold, 5... Slit, 6...
Cutting blade, 10...Hydraulic cylinder, 12...Cylinder rod, 13...Through hole, 14...Circular portion of cylinder rod, 15...Concave portion, 16...Press piece, 17
... Ball hole part of pressing piece, 20 ... Lower surface plate, 21 ...
...The cutting blade receiving part of the lower surface plate.

Claims (1)

[Scope of utility model registration request] It has a fixed upper surface plate with a cutting blade erected on its lower surface, and a lower surface plate that is disposed below the upper surface plate and moves up and down to punch out the punching paper between it and the cutting blade. In a flat plate punching machine, there is a cutting blade receiving iron plate disposed between the lower surface of the upper surface plate and the cutting blade, a number of hydraulic cylinders arranged inside the upper surface plate, and the drive of this hydraulic cylinder. A blade for a flat plate punching machine comprising: a cylinder rod that presses a cutting blade receiving iron plate; and a pressing piece swingably connected to the cylinder rod and fixed to the back side of the cutting blade receiving iron plate. Hit adjustment device.