JP5241005B2 - Sheet material cutting device - Google Patents

Description

  The present invention is used by being mounted on a printing recording apparatus such as a register, ticket vending machine, thermal printer, or label printer, for example, and for example, cutting a sheet material for cutting roll paper or folded continuous paper into an arbitrary length. Relates to the device.

  2. Description of the Related Art Conventionally, a sheet material cutting device generally called a slide cutter that performs cutting by moving a pressure contact formed by pressing a plate-shaped movable blade to a fixed blade extended in the cutting width direction with a shearing angle in a cutting width direction. is there. In a slide cutter, the movable blade and the fixed blade are crossed to form a cutting point, and the pressure contact that moves in the cutting width direction with the progress of cutting properly maintains the pressure contact force between the movable blade and the fixed blade. Cutting can be obtained.

  The movable blade and the fixed blade are in pressure contact with the movable blade by pressing the movable blade against the fixed blade by a repulsive force obtained by compressing an elastic body such as a coil spring, a leaf spring, or elastic rubber (Patent Document). There are some known methods such as 1) and means for pressing the movable blade against the fixed blade by a repulsive force obtained by elastically bending the movable blade (Patent Document 2).

  In addition to the above-described pressure contact means using the repulsive force caused by the elastic body and the bending of the movable blade, a pressure contact means using magnetic force is also known. For example, in Patent Document 3, a plate-shaped movable blade itself is formed of a permanent magnet, and the movable blade of the permanent magnet and the plate of the permanent magnet disposed opposite to the plate surface of the movable blade are attracted by a magnetic force to move the blade. Disclosed is a means for pressing the blade against the plate side to press-contact the fixed blade.

Japanese Patent Laid-Open No. 06-143187 JP 2006-326788 A Japanese Utility Model Publication No. 03-33092

  In recent years, downsizing and cost reduction of the above-described printing and recording apparatus and the like have been studied, and further downsizing and cost reduction are desired for the sheet material cutting apparatuses mounted thereon. In response to this demand, the pressure contact means using the elastic body described above can cross-contact the movable blade and the fixed blade, but requires a space for compression of the elastic body, a support member for the elastic body, etc. It is disadvantageous in terms of cost reduction. In addition, the above-mentioned pressure contact means utilizing the bending of the movable blade can press the movable blade and the fixed blade in cross contact, but requires a holding structure for maintaining the bending shape of the movable blade, and also exhibits an appropriate repulsive force. Therefore, the shape of the movable blade is restricted, which is disadvantageous in terms of making the cutting device compact and inexpensive.

  On the other hand, the above-mentioned movable blade itself is made of a permanent magnet, and the pressure contact means for pressing the movable blade against the fixed blade is only provided with a permanent magnet plate, and the movable blade is pressed against the fixed blade with a small number of parts. In addition, the shape of the movable blade was not restricted, and it was considered advantageous in terms of making the cutting device compact and inexpensive.

  However, for permanent magnets, for example, alnico magnets, neodymium magnets, and ferrite magnets obtained by magnetizing the materials specified in JIS-C2502 are substantially limited, and the above-mentioned permanent magnets are used. Even when a movable blade, that is, a blade is formed, the blade edge is brittle and easily chipped, and cutting performance comparable to a blade formed using spring steel or high-speed tool steel cannot be obtained. In addition, the movable blade formed of a permanent magnet is difficult to bend elastically because of its poor elasticity. Even if the movable blade is formed with a bend in advance, it is It was difficult to suitably cross the fixed blade.

In addition, there is a problem that metal wear powder generated when sliding with the fixed blade pressed against the tip of the movable blade formed of a permanent magnet adheres to the sheet material and becomes contaminated. It sometimes occurred.
In order to reduce the cost of the cutting device, it is effective to use inexpensive stainless steel such as SUS301 and SUS304, but these inexpensive stainless steels are not easily magnetized and cannot be used as permanent magnets. There wasn't.

  An object of the present invention is to achieve compactness and low cost by allowing the movable blade to be cross-welded to the fixed blade with a simple configuration using the magnetic force of the permanent magnet in view of the above-described problems in the cross-pressure contact between the movable blade and the fixed blade. It is providing the sheet | seat material cutting device which actualized.

  The present inventor can press the movable blade against the fixed blade by cross-contacting with the fixed blade by pressing and bending the movable blade by the magnetic force of a permanent magnet provided separately from the movable blade. And the present invention has been conceived.

  In other words, the first embodiment of the present invention is opposed to the pressure contact side plate surface of the fixed blade extended in the cutting width direction, the plate-shaped movable blade that can be cross-contacted with the fixed blade, and the fixed blade of the movable blade. A sheet material cutting apparatus that moves and cuts a pressure contact formed by cross-contacting the movable blade with the fixed blade at a shear angle in a cutting width direction. A permanent magnet is provided, the frame is formed with a magnetic material, and the movable blade is pressed and bent toward the frame by attracting the permanent magnet and the frame with a magnetic force, and the movable blade is It is a sheet | seat material cutting device which cross-pressure-contacts to the said fixed blade.

  Moreover, the 2nd form of this invention opposes the pressure contact side plate | board surface of the fixed blade extended in the cutting | disconnection width direction, the plate-shaped movable blade which can carry out cross-pressure contact with this fixed blade, and the said fixed blade of this movable blade. A sheet material cutting device that moves and cuts a pressure contact formed by cross-contacting the movable blade with the fixed blade at a shearing angle in a cutting width direction. A magnet is provided, the movable blade is formed with a magnetic body, and the movable blade is pressed and bent toward the frame side by attracting the permanent magnet and the movable blade with a magnetic force. Is a sheet material cutting device that is in cross pressure contact with the fixed blade.

  In the third aspect of the present invention, the fixed blade extended in the cutting width direction, a plate-shaped movable blade that can be cross-contacted with the fixed blade, and the pressure contact side plate surface of the movable blade with the fixed blade are opposed to each other. A sheet material cutting device that moves and cuts a pressure contact formed by cross-contacting the movable blade with the fixed blade with a shear angle in a cutting width direction, the movable blade and the movable blade, Permanent magnets are provided on both of the frames, and the movable blades are pressed and bent toward the frame side by attracting the permanent magnets with a magnetic force, and the movable blades are cross-contacted with the fixed blades. It is a material cutting device.

In any of the first to third aspects of the present invention described above, at least one of the movable blade and the frame can be provided with two or more permanent magnets in the cutting width direction.
In any of the first to third aspects of the present invention described above, the permanent magnet may have a disk shape.

  The sheet material cutting device of the present invention has a plate-like movable blade having a cutting edge shape having a force point on the cutting start side, a fulcrum on the cutting end side, and extending in the cutting width direction, and in the cutting width direction. The pressure contact formed by the pressure contact with the extended fixed blade is moved from the cutting start side in the cutting width direction by turning the movable blade around the fulcrum by the turning operation of the power point, and the position of the fulcrum Can be moved, and the movable blade is moved in the cutting end side direction from the middle of the turning operation to move to the cutting end side in the cutting width direction to cut the sheet material.

  The sheet material cutting device according to the present invention includes a plate-shaped movable blade having a blade shape that is inclined and recessed from a cutting start side toward a cutting end side, and the fixed blade extended in the cutting width direction. The pressure contact formed by the pressure contact can be a sheet material cutting device that moves the movable blade in the cutting direction to move in the cutting width direction from the cutting start side to the cutting end side to cut the sheet material.

  Further, the sheet material cutting device of the present invention is based on the pressure contact between the plate-shaped movable blade having a blade edge shape whose center in the cutting width direction is recessed in a V shape and the fixed blade extended in the cutting width direction. The pressure contact formed can be a sheet material cutting apparatus that moves the movable blade in the cutting direction to move from both sides in the cutting width direction toward the center to cut the sheet material.

  Further, the sheet material cutting device of the present invention has a plate-like movable blade having a fulcrum on the cutting start side and having a blade edge shape extended in the cutting width direction, and the fixed blade extended in the cutting width direction. The pressure contact formed by the pressure contact is a sheet material cutting device that moves in the cutting width direction from the cutting start side to the cutting end side by turning the movable blade about the fulcrum to cut the sheet material. Can do.

  In the sheet material cutting device of the present invention, the movable blade can be cross-contacted with the fixed blade by a simple configuration using the magnetic force of the permanent magnet, so that the sheet material cutting device can be made compact and inexpensive. Furthermore, it is possible to contribute to downsizing and cost reduction of, for example, a printing recording apparatus such as a register, a ticket vending machine, a thermal printer, and a label printer, which is equipped with the sheet material cutting device of the present invention.

An important feature of the present invention resides in that the movable blade is cross-welded to the fixed blade by pressing and bending the movable blade toward the frame by the magnetic force of a permanent magnet provided separately from the movable blade.
That is, as described above, in the first embodiment of the present invention, a permanent magnet is provided separately from the movable blade on the movable blade side, and the permanent magnet and the frame formed with the magnetic material are attracted by magnetic force, The movable blade is pressed against the frame side and bent to cross-contact with the fixed blade. Specifically, a fixed blade extended in the cutting width direction, a plate-shaped movable blade that can be in pressure contact with the fixed blade, and a frame that is disposed opposite to a pressure-contact side plate surface of the movable blade with the fixed blade; A sheet material cutting device for moving and cutting a pressure contact formed by cross-contacting the movable blade with the fixed blade with a shear angle in a cutting width direction, and providing the permanent magnet on the movable blade, The frame is formed with a magnetic material, and the movable blade is pressed and bent toward the frame by attracting the permanent magnet and the frame with a magnetic force, and the movable blade intersects the fixed blade. It is a sheet material cutting device which press-contacts.

  In the second embodiment of the present invention, a permanent magnet is provided separately from the movable blade on the frame side, and the movable blade is attached to the frame by attracting the permanent magnet and a movable blade formed with a magnetic material by a magnetic force. It has the structure which presses to the side and bends and cross-contacts with a fixed blade. Specifically, a fixed blade extended in the cutting width direction, a plate-shaped movable blade that can be in pressure contact with the fixed blade, and a frame that is disposed opposite to a pressure-contact side plate surface of the movable blade with the fixed blade; A sheet material cutting device that moves and cuts a pressure contact formed by cross-contacting the movable blade with the fixed blade with a shear angle in a cutting width direction, and provided with a permanent magnet on the frame, The movable blade is formed with a magnetic material, and the permanent blade and the movable blade are attracted by a magnetic force to press and bend the movable blade toward the frame, so that the movable blade becomes the fixed blade. This is a sheet material cutting device that performs cross pressure welding.

  In the third embodiment of the present invention, permanent magnets are provided on both the movable blade side and the frame side separately from the movable blades, and the permanent magnets are attracted to each other by a magnetic force to press the movable blades toward the frame side. And have a configuration in which the fixed blade is pressed against the fixed blade. Specifically, a fixed blade extended in the cutting width direction, a plate-shaped movable blade that can be in pressure contact with the fixed blade, and a frame that is disposed opposite to a pressure-contact side plate surface of the movable blade with the fixed blade; A sheet material cutting device that moves and cuts a pressure contact formed by cross-welding the movable blade to the fixed blade with a shear angle in a cutting width direction, and is provided on both the movable blade and the frame. Each of the sheet material cutting apparatuses is provided with a permanent magnet, and presses and flexes the movable blade toward the frame side by attracting the permanent magnets with a magnetic force so that the movable blade is cross-contacted with the fixed blade. .

  In a sheet material cutting device called a slide cutter, a shear angle is provided between the movable blade and the fixed blade, and a permanent magnet is provided separately from the above-described movable blade. By adopting such a configuration, the movable blade can be pressed against the fixed blade by magnetic force to be brought into pressure contact with it, and at the same time, the movable blade can be bent by the magnetic force to intersect with the fixed blade. Therefore, it is possible to properly set all three factors important for obtaining a good cutting in the slide cutter, that is, the shear angle, the crossing angle, and the pressure contact force.

  In the sheet material cutting device of the present invention, for example, in the configuration of the first and third embodiments of the present invention, the movable blade itself does not need to be formed of a permanent magnet or a magnetic material, so the movable blade does not become a permanent magnet. A cutting tool with excellent cutting performance formed using spring steel, high-speed tool steel, or the like can be used. Further, it is possible to use inexpensive stainless steel such as SUS301 or SUS304 which is effective for reducing the price of the blade itself. In addition, since the movable blade itself is not a permanent magnet, metal wear powder generated by sliding the movable blade and the fixed blade does not adhere to the cutting edge of the movable blade.

  Further, for example, in the configuration of the second embodiment of the present invention, although the movable blade itself needs to be formed with a magnetic body, it is not a pressure contact means that uses only the bending of the movable blade. It is not always necessary to obtain an appropriate pressure contact force by restricting the shape. Therefore, the movable blade can be formed in a shape suitable for the desired application and cutting performance. The above-described effects of the second embodiment of the present invention are the same as those of the first and third embodiments of the present invention.

  As described above, since the sheet material cutting device of the present invention can cross-contact the movable blade with the fixed blade by magnetic force, the cutting device can be configured with a small number of parts compared to the prior art, and the required space inside the cutting device can be reduced, The sheet material cutting device can be made compact and inexpensive. For example, it is possible to contribute to downsizing and cost reduction of a printing recording apparatus such as a register, a ticket vending machine, a thermal printer, and a label printer, which is mounted with the sheet material cutting device of the present invention.

  The term “permanent magnet” as used in the present invention refers to an article exhibiting ferromagnetism or ferrimagnetism that retains its properties as a magnet for a relatively long period of time without receiving a magnetic field or current from the outside. The permanent magnet that can be used in the present invention is a member obtained by magnetizing a material (JIS-C2502), such as a hard magnetic alloy, a hard magnetic ceramic, or a bonded magnet, that has a large hysteresis and a low demagnetization at room temperature. Permanent magnets called magnets and ferrite magnets can be used. Alnico magnets and neodymium magnets are particularly suitable because they have a strong magnetic force.

  Moreover, the magnetic substance as used in the field of this invention is an article | item using a temporary magnet which can have the property as a magnet only when it receives magnetization by the external magnetic field by a permanent magnet etc. In other words, it is an article that can exhibit magnetism that can be attracted by the magnetic force of the permanent magnet, for example, an iron plate material, a bar material, or a block material including a part of stainless steel. Therefore, in the present invention, the formation of the movable blade having the magnetic body or the formation of the frame having the magnetic body may be performed by attaching a magnetic member made of the above-described iron plate or the like to the movable blade or the plate surface of the frame. Desirably, the movable blade itself and the frame itself are formed using the above-described iron plate material or the like.

  In the sheet material cutting device of the present invention described above, at least one of the movable blade and the frame can be provided with two or more permanent magnets in the cutting width direction. Although one permanent magnet extended in the cutting width direction can be provided, the movable blade is suitable in the cutting width direction even in the sheet material cutting apparatus having a large cutting width by adopting the above-described configuration. It is possible to apply an appropriate crossing angle and pressure contact force. And even if a cutting | disconnection point moves to a cutting | disconnection width direction with advancing of a cutting | disconnection, the appropriate crossing angle and press-contact force between a movable blade and a fixed blade can be hold | maintained.

  Moreover, in the sheet | seat material cutting device of this invention mentioned above, the said permanent magnet can have a disk shape. A permanent magnet having a disk shape has a larger magnetic force per area than a polygonal permanent magnet, and when the movable blade is pressed to the frame side by the magnetic force by the above-described configuration, the movable blade It is possible to concentrate the pressing force acting on the narrow range. As a result, the radius of curvature of the movable blade can be set smaller, and even in a sheet material cutting device with a small cutting width, the movable blade is suitably bent to give an appropriate crossing angle and pressure contact force. can do. In addition, when two or more permanent magnets are provided in the cutting width direction, the installation area of the permanent magnet can be suppressed to the minimum necessary in relation to the magnetic force per area, which is effective for making the cutting device compact. .

The sheet material cutting device of the present invention will be described with reference to the drawings, taking an example.
Example 1
FIG. 1 is a configuration diagram showing an example of a sheet material cutting device corresponding to the first embodiment of the present invention. The sheet material cutting device 1 (hereinafter referred to as a cutting device 1) includes a plate-shaped movable blade 2, a frame 4 made of a magnetic material serving as a movable blade support member, a fixed blade 3 extended in the cutting width direction, and a fixed blade 3. Members 5 such as a spring 5 for assisting movement of the movable blade 2 in the cutting start side direction, a frame 5 for fixing the movable blade 2, a drive pin 6 constituting a movable blade drive mechanism, a rotor 7, a gear 8, a motor 9 The sheet material (not shown) inserted between the frame 4 and the frame 5 can be cut from the right side to the left side in the drawing.

The movable blade 2 is formed in a plate shape and is arranged so that the cutting width direction is the longitudinal direction. On the cutting start side of the cutting edge line of the movable blade 2, there is an inclined portion in the direction of increasing the shear angle. The movable blade 2 has a guide portion 2 c that guides the meshing with the fixed blade 3 at the end in the cutting direction on the cutting start side.
On the other hand, the fixed blade 3 is plate-shaped and formed to extend in the cutting width direction, and the guide portion 2c of the movable blade 2 at the standby position before the start of cutting shown in FIG.

  In cutting, the cross pressure contact between the movable blade 2 and the fixed blade 3 is a disc-like shape disposed slightly on the cutting start side from the center of the plate surface opposite to the pressure contact side plate surface of the movable blade 2 with the fixed blade 3. The magnet 12 and the frame 4 made of a magnetic material are attracted to each other by a magnetic force, whereby the movable blade 2 is pressed against the frame 4 side to bend the movable blade 2 to intersect the fixed blade 3 and move simultaneously. The blade 2 is in pressure contact with the fixed blade 3.

  The movable blade drive mechanism includes a drive pin 6 that engages with the movable blade 2, a rotor 7 that has the drive pin 6 provided at a predetermined distance from the rotation axis, a gear 8 that is connected to the rotor 7, and a gear 8 that rotates the gear 8. Has a motor 9 attached to the motor. With this configuration, the motor 9 can be rotated in one direction to rotate the drive pin 6 provided on the rotor 7, and the movable blade 2 can be turned by the rotation of the drive pin 6. The movable blade is centered on the fulcrum of the lever, that is, the contact point between the outer peripheral surface of the shaft member 10 and the end surface of the shaft member engagement hole 2b by the rotational movement of the force point formed by the drive pin 6 and the drive pin engagement hole 2a. To start cutting, move the position of the fulcrum, perform the shifting operation to move the movable blade in the direction of the end of the cutting from the middle of the turning operation, and perform the cutting operation to cut the sheet material (not shown) Can do.

  As described above, the sheet material cutting device shown as the first embodiment has the power point on the cutting start side, the fulcrum on the cutting end side, and the plate-like movable member having a cutting edge shape extending in the cutting width direction. A pressure contact formed by the pressure contact between the blade and the fixed blade extended in the cutting width direction is turned from the start of cutting in the cutting width direction by turning the movable blade around the fulcrum by turning operation of the power point. The position of the fulcrum is moved, and the movable blade is moved in the cutting end side direction from the middle of the turning operation to move to the cutting end side in the cutting width direction to cut the sheet material. It is a sheet | seat material cutting device corresponding to a 1st form.

(Example 2)
FIG. 2 is a configuration diagram schematically showing an example of a sheet material cutting device corresponding to the first embodiment of the present invention. This sheet material cutting device is a cutting device using a movable blade 50a having a cutting edge line extended so as to be inclined from one to the other in the cutting width direction, and the movable blade 50a is, as indicated by an arrow 52, The movable blade drive mechanism (not shown) is substantially translated from a substantially vertical direction with respect to the sheet surface of the sheet material S. By this cutting operation, the pressure contact between the movable blade 50a, which is a guillotine blade, and the fixed blade 51a can be moved from one end to the other end in the cutting width direction, and the sheet material S can be cut. In such a cutting device using a guillotine blade, since the size of the shear angle formed by the cutting edge lines of the guillotine blade and the fixed blade is kept constant throughout the cutting operation, a stable cutting state can be obtained. it can.

  In the cutting, the cross pressure contact between the movable blade 50a and the fixed blade 51a has a long plate shape disposed along the cutting edge direction of the plate surface opposite to the pressure contact side plate surface of the movable blade 50a with the fixed blade 51a. The magnet 55 and the frame 58a made of a magnetic material are attracted by a magnetic force, whereby the movable blade 50a is pressed against the fixed blade 51a by pressing the movable blade 50a toward the frame 58a, and at the same time, the movable blade 50a is bent. This crosses the fixed blade 51a.

  As described above, the sheet material cutting device shown as Example 2 is extended in the cutting width direction with the plate-shaped movable blade having a blade shape that is inclined and recessed from the cutting start side toward the cutting end side. The pressure contact formed by the pressure contact with the fixed blade is moved in the cutting width direction from the cutting start side to the cutting end side by moving the movable blade in the cutting direction, and cuts the sheet material. It is a sheet | seat material cutting device corresponding to a form.

(Example 3)
FIG. 3 is a configuration diagram schematically showing an example of a sheet material cutting device corresponding to the first embodiment of the present invention. This sheet material cutting device is a cutting device using a movable blade 50b having a cutting edge line formed so as to be inclined in a V shape from both ends in the cutting width direction toward the center. As indicated by 52, the movable blade drive mechanism (not shown) is substantially translated from the substantially perpendicular direction with respect to the sheet surface of the sheet material S. By this cutting operation, the pressure contact between the movable blade 50b, which is a V-shaped blade, and the fixed blade 51b can be moved from both ends in the cutting width direction toward the center, and the sheet material S can be cut. In such a cutting device using a V-shaped blade, the size of the shear angle formed by the cutting edge lines of the V-shaped blade and the fixed blade is kept constant throughout the cutting operation as in the case of the guillotine blade. Since cutting is performed from both sides in the cutting width direction, the movement amount of the V-shaped blade in the cutting direction can be reduced to approximately half that of the guillotine blade.

  In the cutting, the cross pressure contact between the movable blade 50b and the fixed blade 51b is such that the circular plate-like magnet 56 disposed at the center of the plate surface opposite to the pressure contact side plate surface of the movable blade 50b with the fixed blade 51b. The frame 58b made of a magnetic material is attracted by a magnetic force, whereby the movable blade 50b is pressed against the fixed blade 51b by pressing the movable blade 50b toward the frame 58b, and at the same time, the movable blade 50b is bent to be fixed. It intersects with the blade 51b.

  As described above, the sheet material cutting device shown as the third embodiment includes the plate-shaped movable blade having a cutting edge shape whose center in the cutting width direction is recessed in a V shape, and the fixed blade extended in the cutting width direction. A sheet corresponding to the first embodiment of the present invention, wherein the pressure contact formed by the pressure contact is cut from the both sides in the cutting width direction toward the center by moving the movable blade in the cutting direction. It is a material cutting device.

Example 4
FIG. 4 is a configuration diagram schematically showing an example of a sheet material cutting device corresponding to the first embodiment of the present invention. This sheet material cutting device is a cutting device using a movable blade 50c having a cutting edge line that is extended so as to be inclined from one to the other in the cutting width direction. The movable blade 50c is supported by the support shaft 53 on the cutting start side, and the sheet material is obtained by performing a cutting operation such as scissors that rotates the movable blade 50c as indicated by an arrow 54 around the support shaft 53. Can be cut. Specifically, the pressure contact between the movable blade 50c, which is a scissors-like blade, and the fixed blade 51c is moved from one end to the other end in the cutting width direction by a movable blade driving mechanism (not shown), and the sheet material S is moved. Can be cut off. In such a cutting device using scissors-like blades, unlike the above-mentioned guillotine blades and V-shaped blades, the size of the shear angle formed by the cutting edge lines of the scissors-like blade and the fixed blade is the cutting start end. Is maximized and the cutting end is minimized, so that the closer to the cutting start side, the larger the cutting force can be obtained.

  In cutting, the cross pressure contact between the movable blade 50c and the fixed blade 51c is a magnet 57 having a square plate shape disposed on the cutting end side of the plate surface opposite to the pressure contact side plate surface of the movable blade 50c with the fixed blade 51c. And the frame 58c made of a magnetic material are attracted by a magnetic force, whereby the movable blade 50c is pressed toward the frame 58c to bend the movable blade 50c to intersect the fixed blade 51c, and at the same time, the movable blade 50c is fixed. It is in pressure contact with the blade 51c.

  As described above, the sheet material cutting device shown as Example 4 has a plate-like movable blade having a fulcrum on the cutting start side and a cutting edge shape extended in the cutting width direction, and extended in the cutting width direction. The pressure contact formed by the pressure contact with the fixed blade is moved in the cutting width direction from the cutting start side to the cutting end side by turning the movable blade around the fulcrum to cut the sheet material. It is a sheet | seat material cutting device corresponding to this 1st form.

(Example 5)
FIG. 5 schematically shows an example of a side surface in which the permanent magnet is provided not on the movable blade side but on the frame side in the configuration of the cutting device 1 shown in FIG. 1, and corresponds to the second embodiment of the present invention. It is a block diagram used as an example of a cutting device. In order to clarify the characteristics of the present invention, the detailed structure of the movable blade driving mechanism is not shown. In this sheet material cutting apparatus, in the cutting, the cross pressure contact between the movable blade 2 ′ and the fixed blade 3 is fitted to the plate surface of the frame 4 ′ disposed opposite to the pressure contact side plate surface of the movable blade 2 ′ with the fixed blade 3. The magnet 12 ′ having a rectangular shape and the movable blade 2 ′ made of a magnetic material are attracted by a magnetic force, thereby pressing the movable blade 2 ′ toward the frame 4 ′ to move the movable blade 2 ′. The movable blade 2 'is pressed against the fixed blade 3 at the same time.

(Example 6)
FIG. 6 schematically shows an example of a side surface in which the permanent magnet is provided on both the movable blade side and the frame side in the configuration of the cutting device 1 shown in FIG. 1, and corresponds to the third embodiment of the present invention. It is a block diagram which becomes an example of a material cutting device. In order to clarify the characteristics of the present invention, the detailed structure of the movable blade driving mechanism is not shown.

  This sheet material cutting device is provided with a support shaft 5′a on a frame 5 ′ corresponding to the frame 5 shown in FIG. 1 and swinging the frame 5 ′ around the support shaft 5′a in the direction indicated by an arrow 59. The fixed blade 3 can be separated from the movable blade 2, and the fixed blade 3 can be combined with the movable blade 2 by swinging the frame 5 ′ in the reverse direction. The movable blade and the fixed blade can be combined and separated. In this sheet material cutting device, in the cutting, the cross pressure contact between the movable blade 2 and the fixed blade 3 is slightly cut from the center of the plate surface opposite to the pressure contact side plate surface of the movable blade 2 with the fixed blade 3. A rectangular shape arranged by being fitted to the plate surface of the frame 4 ′ disposed opposite to the pressure-contact-side plate surface of the magnet 12 having a disk-like shape disposed on the fixed blade 3 of the movable blade 2. The movable blade 2 is caused to cross with the fixed blade 3 by pressing the movable blade 2 toward the frame 4 ′ and deflecting the movable blade 2. At the same time, the movable blade 2 is fixed to the fixed blade 3. It is in pressure contact.

In any of the sheet material cutting apparatuses of Examples 1 to 6 described above, when the sheet material was actually cut, the sheet material could be cut with a smooth cutting operation. And it has confirmed that the quality of the cut end of the sheet material obtained by cutting was good.
As described above, the sheet material cutting device of the present invention described above as the first to third embodiments presses the movable blade toward the frame side with a simple configuration using the magnetic force of a permanent magnet provided separately from the movable blade. It was confirmed that the movable blade can be suitably cross-welded to the fixed blade by bending. Therefore, the sheet material cutting device of the present invention can be a cutting device that is more compact and less expensive than the conventional ones. It has been found that it can contribute to the downsizing and cost reduction of printing and recording devices such as printers.

It is a lineblock diagram showing an example of a sheet material cutting device corresponding to the first form of the present invention. It is a lineblock diagram showing an example of a sheet material cutting device using a guillotine blade corresponding to the first form of the present invention. It is a block diagram which shows an example of the sheet | seat material cutting device using the V-shaped blade corresponding to 1st form of this invention of this invention. It is a block diagram which shows an example of the sheet | seat material cutting device using the scissors-like blade corresponding to 1st form of this invention of this invention. It is a block diagram which shows an example of the sheet | seat material cutting device corresponding to the 2nd form of this invention of this invention. It is a block diagram which is an example of the sheet | seat material cutting device corresponding to the 3rd form of this invention of this invention, and shows the structure which enabled separation | separation of the movable blade and the fixed blade.

Explanation of symbols

1. Cutting device 2, 2 '. Movable blade, 2a. Drive pin engagement hole, 2b. Shaft member engagement hole, 2c. 2. Guide part, Fixed blade, 4, 4 '. Frame, 5,5 '. Frame, 5'a. Support shaft, 6; 6. driving pin; Rotor, 8. Gear, 9. Motor, 10. Shaft member 11, spring 12, 12, 12 '. Magnet, 50a, 50b, 50c. Movable blades 51a, 51b, 51c. Fixed blade, 52. Arrows, 53. Spindle, 54. Arrow, 55. Magnet, 56. Magnet, 57. Magnets 58a, 58b, 58a. Frame, 59. Arrow, S.M. Sheet material

Claims (9)

  A fixed blade extended in the cutting width direction, a plate-shaped movable blade that can be cross-contacted with the fixed blade, and a frame that is disposed opposite to a pressure-contact side plate surface of the movable blade with the fixed blade, A sheet material cutting device for moving and cutting a pressure contact formed by cross-welding a movable blade to the fixed blade with a shear angle in a cutting width direction, wherein the movable blade is provided with a permanent magnet, and the frame is made of a magnetic material The movable blade is pressed and bent toward the frame side by attracting the permanent magnet and the frame with a magnetic force, and the movable blade is in cross pressure contact with the fixed blade. Sheet material cutting device.   A fixed blade extended in the cutting width direction, a plate-shaped movable blade that can be cross-contacted with the fixed blade, and a frame that is disposed opposite to a pressure-contact side plate surface of the movable blade with the fixed blade, A sheet material cutting apparatus for moving and cutting a pressure contact formed by cross-welding a movable blade to the fixed blade with a shear angle in a cutting width direction, wherein the frame is provided with a permanent magnet, and the movable blade is a magnetic body The movable blade is pressed against the frame side and bent by attracting the permanent magnet and the movable blade with a magnetic force, and the movable blade is brought into cross pressure contact with the fixed blade. A sheet material cutting device.   A fixed blade extended in the cutting width direction, a plate-shaped movable blade that can be cross-contacted with the fixed blade, and a frame that is disposed opposite to a pressure-contact side plate surface of the movable blade with the fixed blade, A sheet material cutting apparatus for moving and cutting a pressure contact formed by cross-welding a movable blade to the fixed blade with a shear angle in a cutting width direction, and providing a permanent magnet on each of the movable blade and the frame. The sheet material cutting device according to claim 1, wherein the movable blade is pressed and bent toward the frame by attracting the permanent magnets with a magnetic force, and the movable blade is brought into cross-pressure contact with the fixed blade.   The sheet material cutting device according to any one of claims 1 to 3, wherein at least one of the movable blade and the frame is provided with two or more permanent magnets in a cutting width direction.   The sheet material cutting device according to claim 1, wherein the permanent magnet has a disk shape.   The plate-like movable blade having a power point on the cutting start side, a fulcrum on the cutting end side, and having a cutting edge shape extended in the cutting width direction, and the fixed blade extended in the cutting width direction The pressure contact formed by the pressure contact is moved from the cutting start side in the cutting width direction by turning the movable blade around the fulcrum by the turning operation of the power point, and the position of the fulcrum can be moved in the middle of the turning operation. The sheet material cutting device according to any one of claims 1 to 5, wherein the sheet material is cut by moving the movable blade in a cutting end side direction to move to a cutting end side in a cutting width direction. .   The movable blade has a pressure contact formed by the pressure contact between the plate-shaped movable blade having a blade shape that is inclined and recessed from the cutting start side toward the cutting end side and the fixed blade extended in the cutting width direction. The sheet material cutting device according to claim 1, wherein the sheet material is cut in the cutting width direction from the cutting start side to the cutting end side by moving in a cutting direction.   A platen-shaped movable blade having a cutting edge shape whose center in the cutting width direction is recessed in a V-shape and a pressure contact formed by the pressure contact between the fixed blade extended in the cutting width direction, and the movable blade in the cutting direction The sheet material cutting device according to claim 1, wherein the sheet material is cut by moving from both sides in the cutting width direction toward the center by moving to the center.   A pressure contact formed by the pressure contact between the plate-like movable blade having a fulcrum on the cutting start side and having a blade edge shape extended in the cutting width direction and the fixed blade extended in the cutting width direction, The sheet material cutting according to any one of claims 1 to 5, wherein the sheet material is cut by rotating in the cutting width direction from the cutting start side to the cutting end side by turning the movable blade around the cutting edge. apparatus.