JPS59142016A - Pressing board - Google Patents

Abstract

PURPOSE:To press objects to be pressed easily and uniformly with a large force by uniformly pressing objects to be pressed through the front ends of several pistons, which are projected on the front faces. CONSTITUTION:Pressing boards 1 are fitted between the spacers 28, 29 of arbor shafts 21, 22, and the rear faces of the pressing boards 1 are brought in contact with the spacers 28 at the back side. And, the front end face of each piston 4, which is projected on the front face of the pressing board 1, is brought in contact with the spacer 29 on the front side. Threaded shafts are screwingly advanced toward pressing chambers by means of a rotating tool and spindles are screwingly advanced toward the bottom sides of the pressing chambers, pressing the pistons against the bottom sides of the pressing chambers. Thereby, each cutter 26 interposed between spacers 25, 25 and between spacers 25, 29 is pressed and clamped from the both sides.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a press plate that evenly presses an object to be pressed by the front ends of a plurality of pistons protruding from the front.

Conventionally, in a steel plate slitter that cuts a wide steel plate into multiple narrow steel plates, as shown in Fig. 1,
Two aper shafts 1411 (2) are arranged vertically in parallel,
A large-diameter retaining part (to) and a small-diameter line drawing part (to) are provided at one end and the other end of each arbor axis Qυ, @, respectively, and an annular or cylindrical spacer ( Insert the annular plate-shaped cutter blade (to) and screwed into the line drawing part (c) of each aper shaft, and tighten each aper shaft Qυ, (2), respectively.
A plurality of spacers (C) and a plurality of cutter blades are held between the H and the retaining part, and each aper shaft (2D,
Attach multiple pieces of force/cutter (1) to the desired positions on each @, and connect the lower end of each force cutter (1) of the upper arbor shaft and the upper end of each cutter (to) of the lower arbor shaft to the desired position. Adjacent with a gap between them. However, since the cutter blade is tightened by tightening the tip (A) that is screwed onto the line drawing part (C) of the aper shaft, if the line drawing in the line drawing part (C) is not completed accurately, If the spacer contact surface of the cutter (A) or the force cutter contact surface of the spacer (A) is not perpendicular to the axial direction but is inclined, the spacer contact surface of the cutter (to) will not be pressed evenly. , cutter (a)
is installed at an angle rather than perpendicular to the axial direction. If the cutter 4 is tilted, the cutting line of the steel plate will not be a straight line but will meander! t9o Also, the line drawing part of the arbor axis (c)
Since the nut (2'l') (:, 2'l') is in contact with the spacer (c), a very large force is required to tighten the nut, increasing the pressing force of the cutter (c). It is very difficult to cut the upper and lower cutters (2G I C16).
It takes a lot of work to adjust the gaps in between. If the gap between the upper and lower cutter blades is not appropriate, the steel plate will not be cut smoothly and a gap will appear on the cut surface of the steel plate.

Furthermore, if the pressing force or dispensing force of the cutter (A) is small, the cutter blade will become loose, and it will take time to adjust the cutter again.

In view of the conventional situation as described above, an object of the present invention is to provide a press plate that can easily press an object to be suppressed evenly and with a large force.

Next, examples of the present invention will be described.

The suppression plate (1-inch) of this example shown in Figs. Drill each piston hole (3
), a piston (4) with an O-ring (5) fitted into the circumferential groove of the curved surface is slidably fitted, and a small-diameter piston hole ( The circular plate-shaped cover plates (7) with the pistons (8) passing through them are overlapped and fixed with a large number of bolts (9), and the small diameter front end of each piston (4) (
6) respectively into the piston holes (8) of the cover plate, the spherical front end surfaces of each piston (4) are placed in front of the main body (2), and each piston hole (3) is inserted into the main body (2). ), forming an annular oil passage (lfJ) that communicates with the bottom of the oil passage.

There are holes (lυ) in several places on the outer peripheral surface of the main body (2).
and pressurized chambers (
1J, and the opening side portions of the 8 holes αυ are respectively formed as wire holes Q, and the bottoms of each pressurizing chamber (1'4) are communicated with the oil passage flll through the shaft hole (14), and each pressurizing chamber The spherical tip of the piston (1F9 is slid into each hole 03, and each screw shaft 07 is screwed into each wire hole 03). The surface is in contact with the proximal end surface of each piston (19), and the retaining piece 0, in which the hexagonal hole leveling proximal end surface of the screw shaft c'i is in contact with the opening position of each wire hole (11), is fixed with a port 0J, All piston holes (3)
The total cross-sectional area of each pressurizing chamber Q is set to slightly less than 20 times the cross-sectional area of
4 and each pressurizing chamber 02 are filled with oil, screw one of the screw shafts a toward the pressurizing chamber (2) side, and use the force of the screw shaft Q to push the piston head into the pressurizing chamber (bottom side of one screw). When pushed, the piston (4) on the front surface of the main body is pushed forward through oil with a force that is slightly less than 20 times the forward force of the screw shaft αη, that is, the forward force of the piston moe.

When using this press plate (1) to press and tighten the cutter (to) of the steel plate slitter, as shown in Figure @6, use the spacer blades of the aperture shafts en and w.

A press plate (1) is fitted between the wings, and the rear surface of the suppress plate (1) is brought into contact with the rear spacer plate, and the front end surface of each piston (4) protrudes from the front surface of the press plate (1). abut against the spacer 4 on the front side, engage a rotary tool such as a torque wrench with the hexagonal hole α8) of the screw shaft of the press plate, and screw the screw shaft α7) into the pressurizing chamber Q4 side with the rotary tool. Advance piston Q
Push fG toward the bottom of the pressurizing chamber (14). Then, each piston (4) on the front of the press plate is pushed forward and the spacer (
2) At 0 o'clock, C→, press the cutter blade and press the x head -(
C), @, Spacer (C), Each force sandwiched between the wires is pressed and tightened from both sides.

During this tightening, each piston (4
) pressurizes the oil in the oil passage 00, which repulses with an equal reaction force in all directions against pressurization. If the pistons (4) are not perpendicular to the axial direction but are inclined and there is a difference in the pressing force of each piston (4), the pistons (4)
) slides appropriately and comes into contact with the spacer rod (
4) is adjusted, each piston (4), which is repulsed by the oil with an even reaction force, comes into contact with the piston contact surface of the spacer blade evenly, and the cutter (1) is tightened with an even force to close the arbor. Axis Qυ.

It is installed at right angles to (2). In addition, when setting the suppression plate (1), the piston (
4) constitutes a forward pressure intensifier circuit, so the spiral axis αη
It is easy to screw in and does not require much force, and each piston (
4) It is easy to increase the pressing force and therefore the feeding force of the cutter blade. Therefore, the clamping force of the cutter C trout can be sufficiently increased, and the upper and lower cutters
, (a) It does not take much effort to adjust the gap between the holes.

In FIG. 6, the same parts as in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted.

The pressing plate (1) of this example can also be used for purposes other than the above for tightening the cutter tel of a steel plate slitter, and applies evenly large force to the pressed object that is in contact with each piston (4) on the front side. Can be easily pressed.

As is clear from the description of the above embodiments, the present invention
A plurality of piston holes are drilled in the front of the disc-shaped main body, a piston is slid into each piston hole, the front end of each piston is projected forward of the main body, and an oil passage is provided that communicates the bottom of each piston hole with the main body. A pressurized chamber is formed which communicates with the oil passage, and
A label that communicates with the pressurizing chamber is drilled, a screw shaft is screwed into the label, the bottom of each piston hole, the oil passage, and the pressurizing chamber are filled with oil, and the piston is screwed into place by screwing the screw shaft. This is a pressing device characterized by a device capable of suppressing the advancing crab 9 with a large force.

In this suppressor, each piston is supported by oil in an oil passage that communicates with the bottom of each piston hole, so the piston contact surface of the suppressed object that comes into contact with the front end of each piston that protrudes forward of the main body is inclined. Even if the object is uneven, the piston will slide appropriately and the position of the piston in contact with the object to be pressed will be adjusted. Press. Further, since the piston is pressed with a force greater than the forward force of the screw shaft due to the spiral movement of the screw shaft, it is easy to increase the pressing force of the piston. As a result, the object to be pressed can be easily pressed evenly with a large force by each piston.

[Brief explanation of the drawing]

FIG. 1 is a partial front view of a conventional steel plate slitter, FIG. 2 is a front view of a suppression plate according to an embodiment of the present invention, and FIG.
Figure 4 is a sectional view taken along line IV-IV in Figure 2, Figure S is a sectional view taken along line V-V in Figure 2, and Figure 4 is a sectional view taken along line V-V in Figure 2. 1 is a partial front view of a steel plate slitter using a 1: Suppression plate 2 2 bodies 3: Piston 7 holes 4: Piston 10: Oil passage 12: Pressure chamber 13: Threaded hole 17: Threaded shaft

Claims (1)

[Claims] A plurality of piston holes are drilled in the front of the disc-shaped main body, a piston is slid into each piston hole, the front end of each piston is projected forward of the main body, and the bottom of each piston hole is communicated with the main body. Forms an oil passage and a pressurized chamber communicating with the oil passage, and
A wire hole communicating with the pressurizing chamber is drilled, a screw shaft is screwed into the wire hole, the bottom of each piston hole, the oil passage, and the pressurizing chamber are filled with oil, and the piston is moved by screwing the screw shaft. A pressing plate characterized by being equipped with a device capable of pressing with a force greater than the forward force of a screw shaft.