JP2001310291A - Cutting blade elevating device for paper cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutting blade elevating device capable of lowering the required energy cost when working, improving the cutting pressure of the cutting blade and accurately controlling the working range of the cutting blade by elevating the cutting blade with a link device and a pressure cylinder. SOLUTION: A hydraulic cylinder is provided under one side of a cutting blade 1, and one end of a lower rotor 3, which is pivotally supported by a device at an intermediate folding part 3b thereof through a rotary shaft 3a, is pivotally fitted to a rod 2a, and the other end thereof is pivotally fitted to one end of a connecting arm 4, and the other end of the connecting arm 4 is pivotally fitted to a fixing tool 8b with one end of a turning motion controller 5 interlocked with the lower rotor. An upper rotor 7 pivotally supported by the device at one end thereof through a rotary shaft 7a is arranged over, and the other end of the upper rotor 7 is pivotally fitted to the other end of a connector 6 pivotally fitted to a side of the cutting blade 1. The other end of the upper rotor is pivotally fitted to an operation lever 8, and the fixing tool 8b and the operation lever 8 are connected to each other through a spring 8c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a lifting device for a cutting blade for a paper cutting machine. More specifically, by enabling the cutting blade to be raised and lowered by using a link device and a pressure cylinder, the energy cost required for operating the cutting machine can be reduced, and the cutting pressure of the cutting blade can be increased, and the cutting pressure can be increased. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device for a cutting blade for a paper cutting machine, wherein the operating range of the blade can be accurately controlled.

[0002]

2. Description of the Related Art In a conventional paper cutting machine, a cutting blade is moved up and down by using a complicated gear device, so that not only the operation of the cutting machine consumes a considerable amount of energy but also a considerably complicated operation due to automation. The machine configuration is required, cost and time are wasted a lot, and when cutting paper, the cutting blade that is raised and lowered by the gear cannot control the exact operating range due to the tolerance of the gear, so cutting When the blade descends, the blade and the shelf are easily damaged by contact between the blade and the blade, and the cutting force of the blade is reduced, and the frequent replacement of the cutting blade increases the maintenance cost of the machine.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. A pressure cylinder such as a hydraulic pressure is installed at a lower portion of one side of a cutting blade. Are connected by a link device, and the cutting blade is raised and lowered by the operation of the cylinder, so that the cutting pressure can be increased and the operating range of the cutting blade can be controlled accurately. The task is to

[0004]

In order to solve the above-mentioned problems, the present invention provides a cutting blade 1 which moves up and down along a guide 102.
In a paper cutting machine that cuts paper with
A pressure cylinder 2 such as a hydraulic pressure is installed below the cutting blade 1, one end of a link mechanism is pivotally attached to the end of the cylinder rod 2 a, and the other end of the link mechanism is pivotally attached to one side of the cutting blade 1. The link mechanism pivotally connects one end of the pivoted lower rotating body 3 to the cylinder rod 2a, and connects one end of the upper rotating body 7 to one side of the cutting blade 1 via a pivot.
The other end portions of the upper and lower rotating members 3 and 7 are pivotally connected and connected as a link structure via a plurality of connecting members, and preferably have a configuration in which a spring is interposed at an intermediate portion. A lifting device is configured.

Further, according to the present invention, in a paper cutting machine for cutting paper with a cutting blade 1 which moves up and down along a guide 102, a pressure cylinder 2 such as a hydraulic pressure is installed below one side of the cutting blade 1 so that the middle folding is performed. One end of the lower rotating body 3 having the curved portion 3b pivotally supported by the rotating shaft 3a is pivotally connected to the end of the cylinder rod 2a, and the other end of the lower rotating body 3 is pivotally connected to one end of the connecting arm 4. The other end of the connecting arm 4 is connected to the lower end of the rotating body 3 together with one end of the rotation controller 5 by the fixing tool 8.
b, on the other hand, above the lower rotating body 3, another end of the upper rotating body 7, one end of which is pivotally supported by a rotating shaft 7a, is connected to the side of the cutting blade 1 by another connecting body. 6, and the other end of the upper rotating body 7 is further pivotally connected to the operating lever 8.
The fixing tool 8b and the operating lever 8 are connected to a guide rod 8a.
Has a configuration in which either one of them is fitted so as to be able to move up and down, and the fixture 8b and the operating lever 8 are connected by a spring 8c, so that the up-and-down distance of the cutting blade 1 can be controlled. It is also characterized in that an elevating device for the cutting blade is configured. In any of the above configurations, the upper rotating body 7 has one end connected to the side of the cutting blade 1 and the other end pivotally connected to a connecting member of a link mechanism, for example, an operating lever 8, and has two pivots. The other end, which becomes a triangular point, can be fixed to the end of the guide 102 for supporting the cutting blade by the rotating shaft 7a.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the accompanying drawings. The lifting device for a cutting blade for a paper cutting machine according to the present invention operates a hydraulic cylinder 2 installed at a lower portion of one side of the cutting blade 1, and the cutting blade 1 is connected via a link device connecting the hydraulic cylinder 2 and the cutting blade 1. Is raised and lowered to cut the paper. That is, in the present apparatus, the guide 102 is fixed to the shelf 9 as a paper receiving table fixed to the apparatus main body, and the cutting blade 1 is arranged to move up and down along the guide. A pressure cylinder 2 such as a hydraulic pressure is installed below one side of the cutting blade 1, and an intermediate bent portion 3 b of a bottom-shaped lower rotating body 3 is pivotally supported by a rotating shaft 3 a to the device side. Connect one end of the rotating body 3 to the cylinder 2
, The other end is pivotally connected to one end of the connecting arm 4, and the other end of the connecting arm 4 is connected to the upper end of the lower rotating body 3 together with one end of the rotation control tool 5. , The rotation control tool 5 clamps the lower side of the intermediate portion of the lower rotating body 3 at the other end, and the fixing tool 8b is fitted to the lower part of the guide rod 8a so as to be able to move up and down. .

An upper rotating body 7 is disposed above the lower rotating body 3, and the upper rotating body 7 is a triangular plate.
One end is pivotally supported by the rotating shaft 7a below the guide 102, and another end is pivotally connected to the other end of the coupling body 6 pivotally attached to the side of the cutting blade 1. The other end of the guide rod 8 is pivotally connected to the operating lever 8, the upper end of a guide rod 8a extending downward is fixed to the operating lever 8, and a coil spring 8c is loosely fitted to the guide rod 8a. The fixing tool 8b is fitted to the lower part, and both ends of the spring 8c are fixed to the operating lever 8 and the fixing tool 8b, respectively. By connecting the two 8, 8b, the lifting distance of the cutting blade 1 can be controlled. It is.

That is, as shown in FIGS. 3 and 4, when the cylinder rod 2a of the hydraulic cylinder 2 rises, the lower rotating body 3 having one end pivotally connected to the cylinder rod 2a rotates while rotating about the rotating shaft 3a. The connecting arm 4, which is axially connected to the end, is pulled, but the vertical movement of the connecting arm caused by the vertical movement of the cylinder rod 2a is pivotally attached to the connecting portion 5b of the connecting arm 4, and the other end of the lower rotating body 3 The rotation control tool 5 sandwiching the middle part of the above can provide a stable and constant repetitive motion. The connecting arm 4 pulls the fixture 8b and pulls the connected operating lever 8. The movement of the operating lever 8 rotates the upper rotating body 7, pulls the connecting body 6 connected to the other end of the upper rotating body 7, pulls the cutting blade 1,
The cutting blade 1 descends, and the paper is cut.

At this time, since the rotation control device 5 controls the operating range of the operating lever 8 and realizes a stable vertical movement, the link mechanism associated with the interlocking of each connecting member can perform an accurate operation. The cutting blade 1 cuts the paper placed on the shelf 9 while moving up and down along the guides 102 on both sides. The spring 8c has a buffer function. As described above, when the pressure cylinder 2 such as a hydraulic pressure and the link mechanism are used, the operating range of the cutting blade 1 can be accurately controlled by adjusting the movable range of the cylinder 2. In addition to being able to precisely control the lowest point at which the blade is to be lowered, not only is it possible to cut the paper very precisely, but also such a precise control prevents the blade from making a biting contact with the shelf 9, thereby preventing damage to the blade. Thus, the life of the cutting blade 1 can be extended.

[0010]

As described above, according to the present invention, the operating range of the cutting blade is accurately controlled to prevent damage caused by the blade biting into the shelf, and to prolong the life of the cutting blade. It is possible to prevent the excessive action and save the energy, and it is possible to reduce the replacement cost and the purchase cost due to the breakage of the cutting blade, thereby increasing the productivity.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a link mechanism of a cutting blade elevating device according to the present invention.

FIG. 2 is a schematic front view of a cutting blade elevating device according to the present invention.

FIG. 3 is a schematic front view showing an operating state at a cutting blade elevated position.

FIG. 4 is a schematic front view showing an operation state at a cutting blade lowering position.

FIG. 5 is a schematic side view of the lifting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutting blade 2 Pressure cylinder 2a Cylinder rod 3 Lower rotating body 3a Rotating shaft 3b Bending part 4 Connecting arm 5 Rotation control tool 5a Rotating shaft 5b Connecting part 6 Connecting body 7 Upper rotating body 7a Rotating shaft 8 Operating lever 8a Guide rod 8b Fixing tool 8c Spring 9 Shelf 102 Guide

Claims (2)

[Claims] 1. A cutting blade 1 that moves up and down along a guide 102
In a paper cutting machine that cuts paper with
A pressure cylinder 2 such as a hydraulic pressure is installed below the cutting blade 1, one end of a link mechanism is pivotally attached to the end of the cylinder rod 2 a, and the other end of the link mechanism is pivotally attached to one side of the cutting blade 1. The link mechanism pivotally connects one end of the pivoted lower rotating body 3 to the cylinder rod 2a, and connects one end of the upper rotating body 7 to one side of the cutting blade 1 via a pivot.
A lifting device for a cutting blade for a paper cutting machine, wherein the other end portions of the upper and lower rotating members 3 and 7 are pivotally connected to each other as a link structure via a plurality of pivotally connected connecting members. 2. A cutting blade 1 that moves up and down along a guide 102.
In a paper cutting machine that cuts paper with
A pressure cylinder 2 such as a hydraulic pressure is installed below one side of the cutting blade 1, and one end of a lower rotating body 3 having an intermediate bent portion 3b pivotally supported by a rotating shaft 3a is pivotally attached to an end of a cylinder rod 2a. Then, the other end of the lower rotating body 3 is pivotally connected to one end of the connecting arm 4, and the other end of the connecting arm 4 is fixed to the fixing tool 8 b together with one end of the rotation control tool 5 linked to the lower rotating body 3. On the other hand, above the lower rotating body 3, another end of the upper rotating body 7 whose one end is pivotally supported by the rotating shaft 7 a is connected to a connecting body 6 which is pivotally mounted on the side of the cutting blade 1. , And the other end of the upper rotating body 7 is further pivotally attached to the operating lever 8, and the fixture 8 b
And the operating lever 8 are fitted to the connected guide rod 8a, and the fixing tool 8b and the operating lever 8 are connected via a spring 8c. lift device.