JP2021013974A - Cutter device and printer - Google Patents

Abstract

To move a circular blade to a fixed blade and cut a medium, and thereby prevent an article derived from the medium from being bonded to and accumulated in the fixed blade.SOLUTION: A cutter device 1 includes a conveyance part 2 of a medium, a circular blade 102 movable in a width direction B crossing a medium conveyance direction A, a fixed blade 101 which is provided in the width direction B and is provided at an opposite position Pa opposite to a part of the circular blade 102, and a cavity part formation member 200 where a cavity part 201 opened to the opposite position Pa is formed on the lower side in a gravity direction of the opposite position Pa.SELECTED DRAWING: Figure 7

Description

The present invention relates to a cutter device and a printing device.

Conventionally, a cutter device has been used in which a medium is sandwiched between a fixed blade and a round blade, and the medium is cut by moving the round blade with respect to the fixed blade. For example, Patent Document 1 discloses a cutter for an adhesive sheet that cuts an adhesive sheet by moving a rotary blade that is a round blade with respect to a fixed blade.

JP-A-11-226894

However, in a conventional cutter device that cuts a medium by moving a round blade with respect to a fixed blade as described in Patent Document 1, the round blade is moved with respect to the fixed blade to cut the medium. As a result, media-derived substances such as adhesives may adhere to the fixed blade and accumulate. The adhesive sheet cutter of Patent Document 1 has a relief portion formed on the fixed blade to prevent the cutting edge of the rotary blade from coming into contact with the fixed blade to prevent the adhesive from accumulating on the fixed blade. It is not possible to sufficiently suppress the accumulation of the agent, and applying such processing to the fixed blade also causes an increase in cost. If the derivative derived from the medium adheres to the fixed blade and accumulates, it may cause poor cutting of the medium.

The cutter device of the present invention for solving the above problems is provided with a medium transporting portion, a round blade movable in a width direction intersecting the medium transporting direction, and the round blade along the width direction. It is characterized by including a fixed blade provided at a position facing a part of the blade and a cavity forming member having a cavity formed on the lower side of the facing position in the direction of gravity to open with respect to the facing position. And.

Schematic side sectional view of the printing apparatus according to an embodiment of the present invention. The block diagram which shows the electrical structure of the printing apparatus which concerns on one Example of this invention. The schematic side sectional view of the cutter unit of the printing apparatus which concerns on one Example of this invention. The schematic perspective view of the cutter unit of the printing apparatus which concerns on one Example of this invention. The schematic perspective view of the round blade carriage of the cutter unit of the printing apparatus which concerns on one Example of this invention. FIG. 5 is a schematic perspective view of a round blade carriage of a cutter unit of a printing apparatus according to an embodiment of the present invention as viewed from a direction different from FIG. Schematic side sectional view of the vicinity of the front case of the printing apparatus according to the embodiment of the present invention. A partially enlarged view of the vicinity of the front case represented by FIG. 7. The schematic perspective view of the cutter unit and the front case of the printing apparatus which concerns on one Example of this invention. The schematic perspective view near the fixed blade of the cutter unit of the printing apparatus which concerns on one Example of this invention. It is a schematic perspective view for demonstrating the driving of the printing apparatus which concerns on one Example of this invention, and shows the state immediately before cutting a medium. It is a schematic perspective view for demonstrating the driving of the printing apparatus which concerns on one Example of this invention, and shows the state immediately after cutting a medium. The schematic perspective view which shows the state which the origin derived from the medium adhered to a fixed blade by driving the printing apparatus which concerns on one Example of this invention for a long period of time.

First, the present invention will be described schematically.
The cutter device according to the first aspect of the present invention for solving the above problems is provided with a medium transporting portion, a round blade that can move in the width direction intersecting the medium transporting direction, and the cutter device along the width direction. A fixed blade provided at a position facing a part of the round blade, and a cavity forming member having a cavity formed on the lower side of the facing position in the direction of gravity to open with respect to the facing position. It is characterized by having.

In a cutter device that cuts a medium by moving the round blade with respect to the fixed blade, as the medium is cut, the position of the fixed blade facing the round blade, especially the origin derived from the medium such as an adhesive. It is easy for things to adhere. However, according to this aspect, when the origin derived from the medium adhering to the fixed blade is deposited as the medium is cut, the origin can be accommodated in the cavity by utilizing gravity. .. Therefore, it is possible to prevent the derivative from accumulating at the opposite position and causing poor cutting of the medium.

In the cutter device of the second aspect of the present invention, in the first aspect, the volume of the cavity is derived from the medium generated at the facing position when the cutter device is used until the product life. It is characterized by having a volume that can accommodate an object.

According to this aspect, it is possible to suppress the accumulation of the derivative derived from the medium on the fixed blade until the life of the cutter device is reached.

The cutter device according to the third aspect of the present invention is characterized in that, in the first or second aspect, the cavity forming member also serves as a part of a case covering the cutter device.

According to this aspect, since the cavity forming member also serves as a part of the case covering the cutter device, a simple configuration can be made without increasing the number of constituent members.

The cutter device of the fourth aspect of the present invention transmits the driving source for moving the round blade and the driving force of the driving source to the round blade in any one of the first to third aspects. It is characterized in that it is provided with a train wheel, a wall portion provided between the moving range of the round blade and the train wheel, and connected to the cavity.

According to this aspect, the wall portion can prevent the origin derived from the medium from reaching the train wheel. Therefore, it is possible to prevent the round blade from moving poorly due to the derived product reaching the train wheel.

In the cutter device according to the fifth aspect of the present invention, in any one of the first to fourth aspects, the fixed blade is screwed from the facing position side in a direction intersecting the gravity direction to form the fixed blade. A frame to be fixed is provided, and the fixing blade is characterized by having a recess in which a screw head of the screw is arranged on the lower side in the direction of gravity of the facing position.

According to this aspect, since the fixed blade has a recess in which the screw head is arranged on the lower side in the direction of gravity at the opposite position, the derivative derived from the medium is caught on the screw head and the derived product is placed in the cavity. It is possible to prevent the containment from being hindered.

The cutter device of the sixth aspect of the present invention is characterized in that, in the fifth aspect, the recess has a depth at which the screw head does not protrude when viewed from the direction of gravity.

According to this aspect, since the recess has a depth at which the screw head does not protrude when viewed from the direction of gravity, it is possible to particularly effectively prevent the screw head from being caught by the origin derived from the medium.

The printing apparatus according to the seventh aspect of the present invention includes a medium transport section, a printing section for printing on the medium, a round blade movable in a width direction intersecting the transport direction of the medium, and a line along the width direction. A cavity forming member in which a fixed blade provided at a position facing a part of the round blade and a cavity opening with respect to the facing position are formed on the lower side of the facing position in the direction of gravity. It is characterized by having.

According to this aspect, when a derivative derived from the medium adhering to the fixed blade is deposited as the medium is cut, the derived substance can be accommodated in the cavity by utilizing gravity. Therefore, it is possible to print while suppressing the accumulation of the derivative material at the opposite position and causing poor cutting of the medium.

Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings.
First, an outline of the printing apparatus 1 according to an embodiment of the present invention will be described with reference to FIG. Here, the printing device 1 of this embodiment includes a cutter unit 100, and can be expressed as a cutter device.

The printing device 1 of this embodiment is a printing device capable of printing an image on a medium M (see FIGS. 11 and 12) containing an adhesive such as a sticker or label paper, and is an external device, a computer (PC42). : See Fig. 2) and is connected so that it can communicate. The printing device 1 of this embodiment has a configuration capable of printing on a roll-shaped medium M, but may also have a configuration capable of printing on a single-cut medium M such as cut paper. Good.

As shown in FIG. 1, the printing apparatus 1 of the present embodiment includes a pair of rollers 2 as a conveying unit for conveying the medium M, and can convey the medium M on the platen 3 along the conveying direction A. It has a good structure. The transport unit of this embodiment is a pair of rollers that transports the medium M by sandwiching it between two opposing rollers, but the configuration of the transport unit is not limited to the roller pair.

Further, a head 4 for ejecting ink to the medium M transported along the transport direction A is provided at a position facing the platen 3. In other words, the head 4 is a printing unit capable of forming an image on the medium M. The head 4 of this embodiment has a configuration capable of ejecting ink to the medium M while reciprocating in the width direction B intersecting the transport direction A. That is, in the printing apparatus 1 of this embodiment, the medium M is conveyed in the conveying direction A by the roller pair 2 in a predetermined conveying amount, and the ink is moved while the head 4 is moved in the width direction B with the medium M stopped. A desired image can be formed on the medium M by repeating the process of discharging the ink.

The printing device 1 of this embodiment is a so-called serial printer that alternately repeats the transfer of a predetermined amount of the medium M and the reciprocating movement of the head 4, and prints, but the line is along the width direction B of the medium M. A so-called line printer may be used in which a line head having nozzles formed therein is used to continuously perform printing while continuously conveying the medium M. Further, the printing apparatus may be provided with a printing unit having a configuration different from that of the so-called inkjet printing unit that ejects ink to print.

A cutter unit 100 is provided on the downstream side of the head 4 in the transport direction A. The details of the cutter unit 100 will be described later, but the cutter unit 100 has a fixed blade 101 extending along the width direction B and a round blade 102 that can move along the fixed blade 101 while being in contact with the fixed blade 101. The round blade carriage 103 is provided. The printing apparatus 1 of this embodiment has a configuration in which the medium M can be cut along the width direction B at a desired position by the cutter unit 100.

Next, the electrical configuration of the printing apparatus 1 of this embodiment will be described with reference to FIG.

The control unit 30 is provided with a CPU 31 that controls the entire printing device 1. The CPU 31 is connected via a system bus 32 to a storage unit 33 having a ROM for storing various control programs and the like executed by the CPU 31 and a RAM and EEPROM for temporarily storing data.

Further, the CPU 31 is connected to a head driving unit 34 for driving the head 4 and ejecting ink via the system bus 32.

Further, the CPU 31 is connected to a motor drive unit 35 which is connected to a feeding motor 36, a head moving motor 37, a transport motor 38, and a round blade carriage motor 39 via a system bus 32. Here, the feeding motor 36 is a rotation mechanism of a set portion of the roll-shaped medium M, and is a motor that drives the set portion in order to feed the roll-shaped medium M to the roller pair 2. is there. The head moving motor 37 is a motor for reciprocating the head 4 in the width direction B. Further, the transfer motor 38 is a motor for rotating the roller pair 2. The round blade carriage motor 39 is a motor for moving the round blade carriage 103 along the width direction B.

Further, the CPU 31 includes an operation panel 41 capable of receiving instructions from the user such as data input by the user via the system bus 32, a PC 42 for transmitting and receiving data such as image data and signals, and the like. , Are connected via the input / output unit 40.

Since the control unit 30 has such a configuration, each of the set unit of the medium M wound in a roll shape, the roller pair 2, the head 4, the round blade carriage 103, and the like in the printing device 1 of the present embodiment. It is possible to control the entire constituent members of the above.

Next, the detailed configurations of the cutter unit 100 and the front case 200, which are the main parts of the printing apparatus 1 of this embodiment, will be described with reference to FIGS. 3 to 10.

As shown in FIGS. 3 and 4, the cutter unit 100 has a frame 104 extending in the width direction B, and the frame 104 is provided with a mounting portion 105 for a fixed blade 101. The fixed blade 101 is fixed to the mounting portion 105 by a screw 106.

Further, as shown in FIG. 4, two pulleys 107 are provided on the frame 104, and an endless belt 108 to which a round blade carriage 103 is attached is hung on the two pulleys 107. The pulley 107 rotates by transmitting the driving force of the round blade carriage motor 39 by the train wheel 113 composed of a plurality of gears. As the pulley 107 rotates, the round blade carriage 103 attached to the endless belt 108 moves along the width direction B. That is, the moving direction of the round blade carriage 103 corresponds to the width direction B.

Further, as shown in FIGS. 3 and 4, the frame 104 is provided with a rack 109 that also serves as a guide portion for guiding the movement of the round blade carriage 103 along the width direction B. On the other hand, as shown in FIGS. 3, 5 and 6, the round blade carriage 103 is provided with a pinion 110 that engages with the rack 109. Then, as shown in FIGS. 3 and 6, the round blade carriage 103 is provided with a gear 111 that engages with the pinion 110, and the gear 111 shares the round blade 102 and the rotating shaft 112 and is round. It is fixed to the blade 102. With such a configuration, the cutter unit 100 has a configuration in which the round blade 102 automatically rotates as the round blade carriage 103 is moved along the width direction B.

As shown in FIGS. 7 and 8, the front case 200 is opened with respect to the facing position Pa on the lower side in the gravity direction of the facing position Pa where the fixed blade 101 and a part of the round blade 102 face each other. The cavity 201 is formed. The cavity 201 is provided along the width direction B on the lower side of the facing position Pa in the direction of gravity. The cavity 201 of the present embodiment has a configuration in which the upper side in the gravity direction is open and wall portions are provided on the lower side in the gravity direction and the side intersecting the weight direction, but the configuration is not limited to such a configuration. .. As long as it is provided on the lower side of the facing position Pa in the gravity direction and the upper side in the gravity direction is open, the space does not have to be clearly surrounded by the wall portion.

As shown in FIG. 9, the train wheel 113 is provided below the movement range of the round blade carriage 103 in the width direction B, but the round blade 102 when the round blade carriage 103 is moved in the width direction B. A wall portion 202 connected to the cavity portion 201 is provided between the moving range and the train wheel 113. The wall portion 202 is also integrally formed with the front case 200 like the hollow portion 201.

Further, as described above, the fixing blade 101 is fixed to the frame 104 by the screw 106 via the mounting portion 105. As shown in FIG. 10, the fixed blade 101 is formed with a recess 114 at a position where the screw head 106a of the screw 106 is arranged. When the fixed blade 101 is fixed to the mounting portion 105 by the screw 106, the screw head 106a does not protrude from the recess 114 when viewed from the direction of gravity. The screwing direction of the screw 106 is opposite to the transport direction A and intersects the gravity direction.

Next, the driving of the printing apparatus 1 of the present embodiment related to the driving of the cutter unit 100 will be described with reference to FIGS. 11 to 13. Specifically, the driving of the printing apparatus 1 described below is a driving for driving the roller pair 2 and the cutter unit 100 under the control of the control unit 30 to cut the medium M. 11 to 13 show a state in which the front case 200 is removed.

FIG. 11 shows a state in which the medium M is conveyed to the cutting position by the cutter unit 100 and immediately before the medium M is cut. In FIG. 11, the round blade carriage 103 is located at the home position and moves to the first direction B1 of the width direction B when the medium M is cut. The rotation direction of the round blade 102 when the round blade carriage 103 moves in the first direction B1 is the rotation direction R1. In other words, in the printing apparatus 1 of the present embodiment, the rotation direction R1 of the round blade 102 when cutting the medium M by moving the round blade 102 in the first direction B1 is the moving direction of the round blade 102. It is the same direction as the first direction B1. That is, when the round blade 102 moves to the right, for example, when cutting the medium M, the rotation direction of the round blade 102 is to the right (clockwise).

FIG. 12 shows a state immediately after the round blade carriage 103 moves in the first direction B1 from the state of FIG. 11 and cuts the medium M. In FIG. 12, the round blade carriage 103 is located on the side opposite to the home position in the width direction B, and after this state, moves to the second direction B2, which is the direction opposite to the first direction B1, and homes. Return to position. The rotation direction of the round blade 102 when the round blade carriage 103 moves in the second direction B2 is the rotation direction R2 in the direction opposite to the rotation direction R1.

FIG. 13 shows a state in which the derivative Ma derived from the medium M such as an adhesive is attached to the fixed blade 101 by repeating the cutting operation of the medium M by the cutter unit 100, and the derived product Ma hangs down from the fixed blade 101. Represents. As shown in FIG. 13, by repeating the cutting operation of the medium M by the cutter unit 100, the origin Ma derived from the medium M adheres to the fixed blade 101, and the origin Ma grows downward in the direction of gravity. .. Since the printing apparatus 1 of this embodiment has a cavity 201 that accommodates the origin Ma even if the origin Ma grows, the growing origin Ma can continue to escape to the cavity 201. .. That is, the printing apparatus 1 of this embodiment can prevent the origin Ma from accumulating on the fixed blade 101 because there is no escape place for the origin Ma.

Here, once summarized, the printing apparatus 1 of the present embodiment includes a roller pair 2 which is a transporting portion of the medium M, a head 4 which is a printing portion for printing on the medium M, and a round blade which can move in the width direction B. The fixed blade 101 provided along the width direction B and the fixed blade 101 provided at the facing position Pa facing a part of the round blade 102, and the fixed blade 101 provided at the facing position Pa downward in the gravity direction of the facing position Pa are opened with respect to the facing position Pa. It includes a front case 200 as a cavity forming member in which the cavity 201 is formed.

In the printing apparatus 1 of this embodiment, when the origin Ma derived from the medium M adhering to the fixed blade 101 is deposited as the medium M is cut, the origin Ma is hollowed out by using gravity. It can be accommodated in 201. Therefore, the printing apparatus 1 of the present embodiment can print while suppressing the accumulation of the derivative Ma on the facing position Pa and causing cutting failure of the medium M. The "cavity forming member in which the cavity 201 is formed" means that it is sufficient that at least a part of the cavity forming member constitutes the cavity 201.

Summarizing the above from the viewpoint of the cutter device, the cutter device of the present embodiment is provided with a roller pair 2 which is a transporting portion of the medium M, a round blade 102 which can move in the width direction B, and along the width direction B. A fixed blade 101 provided at a position Pa facing a part of the round blade 102, and a front case 200 having a cavity 201 formed on the lower side of the facing position Pa in the direction of gravity with respect to the facing position Pa. It has. Therefore, the cutter device of this embodiment can prevent the origin Ma from accumulating on the facing position Pa and causing poor cutting of the medium M.

Here, in the printing device 1 of the present embodiment, the volume of the cavity 201 is a volume that can accommodate all the origin Ma generated at the opposite position Pa when the printing device 1 is used until the product life. It is configured as follows. Therefore, the printing apparatus 1 of this embodiment can prevent the origin Ma from accumulating on the fixed blade 101 until the product life is reached. The “product life” means that the product life of any of the constituent members of the printing apparatus 1 may be used.

Further, as described above, in the printing apparatus 1 of the present embodiment, the front case 200 in which the cavity 201 is formed is the case on the front side of the printing apparatus 1, and is included in the entire case covering the printing apparatus 1. It also serves as a part. Therefore, the printing apparatus 1 of this embodiment has a simple configuration without increasing the number of constituent members.

Further, as described above, the printing apparatus 1 of the present embodiment transmits the driving force of the round blade carriage motor 39, which is a drive source for moving the round blade 102, and the driving force of the round blade carriage motor 39 to the round blade 102. It is provided with a wheel train 113 and a wall portion 202 provided between the moving range of the round blade 102 and the wheel train 113 and connected to the cavity portion 201. Since the printing apparatus 1 of the present embodiment has such a configuration, the wall portion 202 can prevent the origin Ma from reaching the train wheel 113, and the origin Ma reaches the train wheel 113 to reach the round blade 102. It is possible to suppress the occurrence of poor movement.

Further, as described above, the printing apparatus 1 of the present embodiment includes a frame 104 in which the fixing blade 101 is fixed by being screwed by a screw 106 in a direction intersecting the gravity direction from the facing position Pa side. .. The fixed blade 101 has a recess 114 in which the screw head 106a of the screw 106 is arranged on the lower side of the facing position Pa in the direction of gravity. As described above, in the printing apparatus 1 of the present embodiment, since the fixed blade 101 has a recess 114 in which the screw head 106a is arranged on the lower side in the gravity direction of the facing position Pa, the origin Ma is derived from the screw head 106a. Can be prevented from being caught and the origin Ma being contained in the cavity 201.

Here, the recess 114 is configured to have a depth at which the screw head 106a does not protrude when viewed from the direction of gravity. Therefore, the printing apparatus 1 of the present embodiment can particularly effectively prevent the origin Ma from being caught on the screw head 106a.

It is needless to say that the present invention is not limited to the above examples, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention.

1 ... Printing device (cutter device), 2 ... Roller pair (conveyor), 3 ... Platen,
4 ... Head (printing unit), 30 ... Control unit, 31 ... CPU, 32 ... System bus,
33 ... Storage unit, 34 ... Head drive unit, 35 ... Motor drive unit,
36 ... Delivery motor, 37 ... Head movement motor, 38 ... Conveyance motor,
39 ... Round blade carriage motor (drive source), 40 ... Input / output unit, 41 ... Operation panel,
42 ... PC, 100 ... Cutter unit, 101 ... Fixed blade, 102 ... Round blade,
103 ... Round blade carriage, 104 ... Frame, 105 ... Mounting part, 106 ... Screw,
106a ... screw head, 107 ... pulley, 108 ... endless belt, 109 ... rack,
110 ... pinion, 111 ... gear, 112 ... rotating shaft, 113 ... train wheel, 114 ... recess,
200 ... Front case (cavity forming member), 201 ... Cavity, 202 ... Wall, M ... Medium,
Ma ... Derived from body M, Pa ... Opposing position

Claims (7)

The media carrier and
A round blade that can move in the width direction that intersects the transport direction of the medium,
A fixed blade provided along the width direction and at a position facing a part of the round blade.
A cavity forming member in which a cavity opening with respect to the facing position is formed on the lower side of the facing position in the direction of gravity.
A cutter device characterized by being equipped with. In the cutter device according to claim 1,
The cutter device is characterized in that the volume of the cavity portion is a volume capable of accommodating a derivative derived from the medium generated at the facing position when the cutter device is used until the product life. In the cutter device according to claim 1 or 2.
The cutter device, wherein the cavity forming member also serves as a part of a case that covers the cutter device. In the cutter device according to any one of claims 1 to 3,
A drive source for moving the round blade and
A train wheel that transmits the driving force of the driving source to the round blade, and
A wall portion provided between the moving range of the round blade and the train wheel and connected to the hollow portion, and a wall portion.
A cutter device characterized by being equipped with. In the cutter device according to any one of claims 1 to 4.
A frame is provided in which the fixed blade is fixed by being screwed with a screw in a direction intersecting the direction of gravity from the facing position side.
The cutter device is characterized in that the fixed blade has a recess in which the screw head of the screw is arranged on the lower side in the direction of gravity of the facing position. In the cutter device according to claim 5,
The cutter device is characterized in that the recess has a depth at which the screw head does not protrude when viewed from the direction of gravity. The media carrier and
A printing unit for printing on the medium and
A round blade that can move in the width direction that intersects the transport direction of the medium,
A fixed blade provided along the width direction and at a position facing a part of the round blade.
A cavity forming member in which a cavity opening with respect to the facing position is formed on the lower side of the facing position in the direction of gravity.
A printing apparatus comprising.

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