JPH0748393Y2 - Cutting machine - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device for cutting or partially punching punching blades mainly for making paper tiles for jigsaw puzzles and Thomson blades used for making paper boxes.

[0002]

[Prior Art and Problems to be Solved by the Invention]
This kind of cutting device is provided with an elevating table which is capable of ascending and descending on a base, and an upper blade is attached to the elevating table via a blade mounting table, and a lower blade is fixed on the base in correspondence with the descending position of the upper blade. is doing. In the above cutting device, when cutting, a force is applied to the upper blade and the blade mounting base so that their lower portions are separated laterally from the lower blade due to cutting resistance, that is, a pulling force.

Only by slidably supporting the both sides of the blade mount by the guide wall, the slide clearance between the guide wall and the blade mount gradually increases due to the pulling force acting on the blade mount, so that the internal clearance becomes early. Backlash,
There is a problem that the cutting accuracy is lowered and the sharpness is deteriorated. The present invention discloses a cutting machine capable of solving the above-mentioned problems by supporting the blade mount with a plurality of bearings.

[0004]

In the cutting machine of the present invention, an upper blade (6) is attached to a blade mount (3) which is vertically movable on a base (1) and fixed on the base (1). In a cutting machine for placing a plate material across the lower blade (8) and cutting or partially punching the plate material by lowering the upper blade (6), an elevating guide table ( 2) is provided so that it can slide vertically on the lifting guide (2).
(4) is provided, a mounting base (3) is projected on the side surface of the lifting base (4), and the blade mounting base (3) is penetrated through the notch hole (21) opened through the lifting guide base (2). And slideable in the up-down direction, and the lift guide is sandwiched by the blade mounting base (3) with the lifting transition path in between.
The outer ring (72) is rotatably fitted into the bearing receiving holes (27) which are partially overlapped with the notch holes (21) and are opened at the upper and lower parts in (2), and the bearings (7) are provided, and the notch holes are formed. The outer ring (72) of the bearing (7) exposed to the (21) presses the side surface of the blade mounting base (3), and the lifting guide base is concentric with the bearing accommodating hole (27).
The bearing hole (28) opened in (2) tightly fits and supports the rear end of the shaft (71) inserted in the bearing (7), and the lifting guide (2)
A substantially rectangular concave step portion (26) is formed around the notch hole (21) on the front surface of the, and the support plate (22) is tightly fitted in the concave step portion (26) and is detachably bolted and fixed. The blade mounting base (3) is penetrated from the vertically elongated hole (23) formed through the support plate (22), and the shaft of each bearing (7) is inserted into the bearing hole (24) formed on the inner surface of the support plate (22). The tip of (71) is tightly fitted and supported.

[0005]

[Operation and effect] When the blade mount (3) is clamped and held by the plurality of bearings (7) so that it can be moved up and down, the blade mount (3)
There is no need to provide a clearance between the bearing and the outer ring (72) of the bearing (7), and the bearing outer ring (72) is fixed to the blade mount (3).
Since it can be pressed against the side surface of the blade and supported, the blade mounting base (3) can be guided up and down smoothly by the outer ring (72) rolling without any play. Therefore, even if the pulling force acts on the mounting base (3), the blade mounting base (3) and the blade mounting base
The upper blade (6) fixed to (3) descends straight without tilting, has a sharp edge, and can cut or partially punch the blade plate with high precision. A large load acts on the bearing 7 due to the load at the time of cutting, frequent lubrication is required to prevent wear of the rolling parts, and the bearing must be replaced depending on the degree of wear. In the present invention, if the fixing bolt of the support plate (22) is loosened, the bearing (7) is exposed from the bearing accommodating hole (27) of the lifting guide (3), so that it is possible to easily lubricate, and The bearing (7) is pulled out forward, a new bearing is inserted into the accommodation hole (27), and the support plate (22) is bolted to the bearing (4).
Since the setting of is completed, the workability of maintenance is extremely good.

[0006]

EXAMPLE As shown in FIG. 1, a mounting base (12) is horizontally projected from a substantially central portion of the upper surface of the base (1), and a blade mounting block () is provided on the inner end side of the mounting base (12). The lower blade (8) is detachably fixed via 81). A vertically elongated hollow elevating guide table (2) is erected on the rear part of the base (1), and an elevating table (4) is vertically movable inside.

A vertically-long fitting recess (40) is opened in the center of the front surface of the lift table (4), and the base end of the blade mounting base (3) is tightly fitted in the recess (40). Bolt inserted from the back of (4)
It is fixed by (not shown). The tip end side of the blade mounting base (3) protrudes outside so as to be able to move up and down through a vertically elongated notch hole (21) formed in the front surface of the lifting guide base (2). A concave step portion (31) is formed at the lower end of the tip of the blade mount (3), and the concave step portion (3
The upper blade (6) is detachably fixed to 1).

A lifting drive device (5) is provided on the upper side of the lifting table (4).
Is installed and is connected to the lifting table (4). Lift drive
In (5), the rotating plate (52) is connected to the motor (51), and the rotating plate (52) is connected.
An eccentric pin (53) protruding from the eccentric position is slidably fitted in a horizontally long receiving hole (43) formed in the lift table (4).
The lift table (4) can be vertically reciprocated once by one rotation of the rotary plate (52).

A total of four bearings (7), two at the top and bottom, sandwiching the ascending / descending path of the ascending / descending guide table (2), are provided.
The outer ring (72) is rotatably fitted in the bearing receiving hole (27) opened in (2). The notch hole (21) side of the bearing accommodating hole (27) is slightly overlapped with the notch hole (21) and communicates therewith, and a part of the outer ring (72) of the bearing (7) is slightly cut out ( 2
It comes out to 1) and presses the side of the blade mount (3). That is, the blade mount (3) is clamped and held by the four bearings (7) so that it can be moved up and down in the vertical plane. bearing
The rear end of the shaft (71) inserted through (7) has a bearing accommodating hole (27).
It is supported by being fitted tightly in the bearing hole (28) opened concentrically with.

A vertically elongated concave step portion (26) is formed around the notch hole (21) on the front surface of the elevating guide table (2). The recessed step
A support plate (22) is tightly fitted to (26) and is bolted and fixed. The support plate (22) has a vertically long hole (23) in the center,
Four bearing holes (24) on both sides of the vertical hole (23), support plate
Bolt holes (25) are opened at the four corners of (22). The bolt (20) inserted into the bolt hole (25) is screwed into the screw hole (29) of the lifting guide (2), and the vertical hole (23) through the blade mount (3).
Protrudes outward so that it can move up and down, and the front end of the shaft (71) of the bearing (7) is tightly fitted in each bearing hole (24).

As described above, in each bearing (7), both ends of the shaft (71) are provided at both ends of the lift guide (2) and the bearing hole (2) of the support plate (22).
It is tightly fitted and supported in 4), is rotatably accommodated in the bearing accommodating hole (27), and the outer ring (72) is in contact with the side surface of the blade mount (3), so that the blade mount (3) moves up and down. When this is done, the outer ring (72) rolls due to friction and guides the blade mount (3) vertically.

However, when the blade mount (3) is clamped and held by the plurality of bearings (7) so as to be able to move up and down, the blade mount (3) is
It is not necessary to provide a clearance between (3) and the outer ring (72) of the bearing (7), and the outer ring (72) of the bearing is attached to the blade mount.
Since it can be pressed against the side surface of (3) and supported, the blade mount (3) can be guided up and down smoothly by the outer ring (72) rolling without any play. Therefore, the mount
Even if a pulling force acts on (3), the blade mount (3) and the upper blade (6) fixed to the blade mount (3) descend straight without tilting, and have sharpness and high precision. The blade plate can be cut or partially punched.

The cutting machine of the present invention can be used not only for cutting a punching blade plate, but also for cutting and punching other plate materials. Further, the present invention can be variously modified within the scope of claims for utility model registration.

[Brief description of drawings]

FIG. 1 is a perspective view of a cutting machine.

FIG. 2 is a perspective view of the cutting machine with a support plate removed.

FIG. 3 is a perspective view of a support structure for a blade mount.

FIG. 4 is a sectional view of a support structure for a blade mount.

FIG. 5 is a cross-sectional view of a mounting state of a support plate.

[Explanation of symbols]

 (1) Base (2) Lift guide (3) Blade mount (4) Lift (5) Lift drive (6) Upper blade (7) Bearing (8) Lower blade

Claims (1)

[Scope of utility model registration request] 1. An upper blade (6) is attached to a blade mount (3) provided on the base (1) so as to be movable up and down, and the blade is attached to a lower blade (8) fixed on the base (1). In the cutting machine that puts the plate material and lowers the upper blade (6) to cut or partially punch the plate material,
(1) An elevator guide (2) is provided on the elevator, and an elevator (4) is provided so as to be vertically slidable on the elevator guide (2).
A blade mount (3) is provided on the side surface of (4) so that it can move up and down.
The blade mount (3) is inserted through the notch hole (21) that is opened through to be slidably fitted in the vertical direction, and is attached to the side surface of the lifting guide (2) across the lifting transition path of the blade mount (3). The outer ring (72) is rotatably fitted in the bearing housing holes (27) that are partially overlapped with the cutout holes (21) and are opened in the upper and lower parts, respectively.
(7) is provided, and the outer ring (72) of the bearing (7) exposed in the notch hole (21) presses the side surface of the blade mount (3) to be concentric with the bearing accommodating hole (27). The rear end of the shaft (71) inserted through the bearing (7) is tightly fitted and supported in the bearing hole (28) opened in 2), and the notch hole (2
1) A substantially rectangular concave step portion (26) is opened around the concave step portion (26).
The support plate (22) is tightly fitted to and detachably bolted and fixed, and the support plate (22) has a vertically elongated hole (23) formed therethrough.
Through the blade mount (3), and into the bearing hole (24) formed in the inner surface of the support plate (22).
A cutting machine that tightly fits and supports the tip of 1).