Cut device, electronic device, cut determining method, and program

Abstract

To determine whether or not a sheet is correctly placed.SOLUTION: A cut device includes a sheet 32, a cut part, a mounting base 31, a voltage detection unit, and a control unit. A cut object is placed on the sheet 32 and the sheet 32 has conductive parts 322A, 322B. In the mounting base 31, conductive parts 312A, 312B are provided at positions which overlap with conductive parts 322A, 322B when the sheet 32 is placed thereon and a conductive part 312C is provided at a position which does not overlap with the conductive part 322A. The cutter device causes the voltage detection unit to detect voltages when a cutter blade is placed in contact with positions in the sheet 32 which correspond to the conductive parts 312A, 312B, causes the voltage detection unit to detect a voltage when the cutter blade is placed in contact with a position in the sheet 32 which corresponds to the conductive part 312C, and determines, based on the voltage detection results, whether or not the sheet 32 is placed on the mounting base 31 correctly.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a cutting device, an electronic device, a cutting determination method, and a program.

Background Art

[0002] Conventionally, a cutting device for cutting an object to be cut is known. For example, a medium cutting device is known that has a cutter blade and first pierces and penetrates a sheet-like medium as an object to be cut on a platen with the cutter blade and then starts cutting from the penetrated portion (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The above-described conventional medium cutting device sets the medium on a platen as a mounting table, but there is a risk of damaging the platen with the cutter blade. For this reason, in a cutting device, a method of installing a sheet of a soft material on an installation table such as a platen, attaching an object to be cut on the sheet, and cutting it is conceivable.

[0005] However, if cutting is started while the sheet on which the object to be cut is placed is not correctly placed, there is a risk of damaging the mounting table.

[0006] An object of the present invention is to determine whether or not the sheet is correctly placed.

Means for Solving the Problems

[0007] To solve the above problems, the cutting device of the present invention includes a sheet on which an object to be cut is placed and which has a plurality of sheet conductive parts, a cutting part having a cutter blade for cutting the object to be cut, a mounting table on which the sheet is placed and which is provided with a first main body conductive part arranged to be electrically connectable at a position overlapping the sheet conductive part when the sheet is placed, and a second main body conductive part provided at a position not overlapping the sheet conductive part, a voltage detection part for detecting voltages generated in the first main body conductive part and the second main body conductive part, and a control part for causing the voltage detection part to detect the voltage when the cutter blade is brought into contact with a position corresponding to the first main body conductive part on the sheet, causing the voltage detection part to detect the voltage when the cutter blade is brought into contact with a position corresponding to the second main body conductive part on the sheet, and determining based on the voltage detection results whether the sheet is correctly placed on the mounting table.

[0008] Further, the electronic device of the present invention includes a sheet on which an object to be cut is placed and which has a plurality of sheet conductive parts, a contact part for contacting the sheet, a mounting table on which the sheet is placed and which is provided with a first main body conductive part arranged to be electrically connectable at a position overlapping the sheet conductive part when the sheet is placed, and a second main body conductive part provided at a position not overlapping the sheet conductive part, a voltage detection part for detecting voltages generated in the first main body conductive part and the second main body conductive part, and a control part for causing the voltage detection part to detect the voltage when the contact part is brought into contact with a position corresponding to the first main body conductive part on the sheet, causing the voltage detection part to detect the voltage when the contact part is brought into contact with a position corresponding to the second main body conductive part on the sheet, and determining based on the voltage detection results whether the sheet is correctly placed on the mounting table.

Advantages of the Invention

[0009] According to the present invention, it is possible to determine whether the sheet is correctly placed.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments and modified examples of the present invention will be described in detail in order with reference to the drawings. However, the scope of the present invention is not limited to the illustrated examples.

[0012] (Embodiment) Referring to FIGS. 1 to 6, an embodiment of the present invention will be described. As shown in FIG. 1, the cutting device 10 is a device that cuts (cuts) a planar medium such as a rectangle as a cutting object into an arbitrary planar shape. In the present embodiment, an example will be described in which paper 60 (FIG. 3) such as A4 paper is used as the medium, but it is not limited thereto. As the medium, other media that can be cut with a cutter blade, such as a sheet of resin, a sticker, or leather, may be used.

[0013] The cutting device 10 is used by being communicatively connected via wireless communication to a PC (Personal Computer) 50 as an information processing device. The PC 50 is a desktop PC. The PC 50 includes a control unit, an operation unit, a display unit, a wireless communication unit, etc. (all not shown in the figure). Based on an operation input from a user via the operation unit, the control unit of the PC 50 performs processes of generating and editing cut data indicating the planar shape and position to be cut by the cutting device 10. The PC 50 also performs, among other things, accepting input of operation information regarding the cutting device 10 and displaying display information regarding the cutting device 10. The information processing device communicatively connected to the cutting device 10 is not limited to the PC 50. The information processing device communicatively connected to the cutting device 10 may be other information processing devices such as a smartphone or a tablet PC. Also, the communication method of the wireless communication between the cutting device 10 and the PC 50 shall be Bluetooth (registered trademark). However, the communication method of the wireless communication is not limited to Bluetooth and may be other communication methods such as Wi-Fi (registered trademark). Also, the communication connection between the cutting device 10 and the PC 50 is not limited to wireless communication and may be wired communication. The wired communication is, for example, USB (Universal Serial Bus) wired communication via a communication cable.

[0014] Next, with reference to FIG. 2, the internal functional configuration of the cutting device 10 will be described. The cutting device 10 includes an MPU (Micro Processor Unit) 11, an operation unit 12, a storage unit 13, an indicator unit 14, a wired communication unit 15, a wireless communication unit 16, a cutting unit 17, an origin position detection unit 18, a paper feeding unit 19, a paper feeding detection unit 20, a power supply unit 21, a voltage detection unit 22, a mounting table (base unit) 31, and a sheet 32. The MPU 11, operation unit 12, storage unit 13, indicator unit 14, wired communication unit 15, wireless communication unit 16, cutting unit 17, origin position detection unit 18, paper feeding unit 19, paper feeding detection unit 20, and voltage detection unit 22 are connected via a bus 23.

[0015] The cutting unit 17 includes an X-axis motor 171, a Z-axis motor 172, a carriage 173, and a cutter blade 174. The paper feeding unit 19 includes a Y-axis motor 191. The power supply unit 21 includes resistors 211A, 211B, and 211C. The mounting table 31 includes conductive parts 312A and 312B as the first main body conductive parts and a conductive part 312C as the second main body conductive part. The sheet 32 includes conductive parts 322A and 322B as the sheet conductive parts.

[0016] The MPU 11 controls each part of the cutting device 10. The MPU 11 includes a CPU (Central Processing Unit) and a RAM (Random Access Memory). The CPU reads out a specified program among various programs stored in the storage unit 13 and expands it in the RAM, and executes various processes in cooperation with the expanded program. The RAM is a volatile semiconductor memory, and a work area for temporarily storing various data and programs is formed. The operation unit 12 includes various buttons, accepts pressing inputs to the buttons from the user, and outputs the operation information to the MPU 11. The various buttons of the operation unit 12 include a position key for moving the position of the paper 60, a temporary stop button for cutting, a set button for the paper 60, a take-out button for the paper 60, and the like.

[0017] The storage unit 13 is a storage unit capable of reading and writing information such as a flash memory. The storage unit 13 stores various data such as cutting data and various programs. In particular, the storage unit 13 stores a first cutting program P1 for executing a first cutting process described later. The indicator unit 14 includes a light emitting part such as an LED (Light Emitting Diode), and indicates various states of the cutting device 10 by lighting / extinguishing. The indicator unit 14 includes, for example, a power lamp indicating power on / off. The indicator unit 14 turns on / off the light emission of the light emitting part according to an instruction from the MPU 11.

[0018] The wired communication unit 15 is an interface for wired communication conforming to a communication standard such as USB. The MPU 11 transmits and receives information to and from an external device such as a PC 50 via the wired communication unit 15 and a communication cable.

[0019] The wireless communication unit 16 includes an antenna, a modulation / demodulation circuit, a signal processing circuit, etc., and is an interface for Bluetooth wireless communication with an external device such as a PC 50. The MPU 11 transmits and receives information to and from an external device such as a PC 50 via the wireless communication unit 16.

[0020] The cutting unit 17 moves the cutter blade 174 mounted on the carriage 173 in the X-axis direction and the Z-axis direction according to an instruction from the MPU 11 by driving the X-axis motor 171 and the Z-axis motor 172. The cutting unit 17 cuts the paper 60 attached to the sheet 32 placed (set) on the mounting table 31 into an arbitrary planar shape by moving the cutter blade 174. Here, with reference to FIG. 3, the paper 60 attached to the sheet 32 placed on the mounting table 31, and the X-axis, Y-axis, and Z-axis will be described.

[0021] The sheet 32 is used for purposes such as not damaging the mounting table 31 with the cutter blade 174 and placing the paper 60 in a normal position. The mounting table 31 has the sheet 32 with the paper 60 attached placed thereon. The X-axis is taken in the main scanning direction when transporting the mounting table 31 (sheet 32, paper 60). The Y-axis is orthogonal to the X-axis and is taken in the transport direction (paper feed direction, sub-scanning direction) of the mounting table 31 (sheet 32, paper 60). The Z-axis is orthogonal to the XY plane and is taken in the direction of moving the cutter blade 174 up and down with respect to the paper 60.

[0022] The X-axis motor 171 is a motor that drives the carriage 173 in the X-axis direction according to the instruction of the MPU 11. The Z-axis motor 172 is a motor that drives the cutter blade 174 in the Z-axis direction according to the instruction of the MPU 11. The carriage 173 is a movable part in the X-axis direction that mounts the cutter blade 174. The cutter blade 174 is a cutting tool made of a conductor such as metal for cutting the paper 60 having a blade tip with an oblique shape, for example, at the tip. The blade rotation motor 175 is a motor that rotationally drives the cutter blade 174 around the axial direction of the cutter blade 174.

[0023] The origin position detection unit 18 is a position detection unit such as an optical sensor that detects whether the cutter blade 174 is at the origin position in the X-axis direction according to the instruction of the MPU 11. The origin position detection unit 18 outputs the detection result of whether the cutter blade 174 is at the origin position to the MPU 11. The MPU 11 controls the position of the cutter blade 174 of the cutting unit 17 in the X-axis direction using the detection result of whether the cutter blade 174 is at the origin position.

[0024] The paper feeding unit 19 is a conveying unit that conveys the mounting table 31 on which the sheet 32 with the paper 60 attached is placed in the Y-axis direction by driving the Y-axis motor 191 according to the instruction of the MPU 11. The paper feeding detection unit 20 is a detection unit such as an optical sensor that detects whether the mounting table 31 on which the sheet 32 with the paper 60 attached is placed is fed (set) to the paper feeding port of the paper feeding unit 19 according to the instruction of the MPU 11. The paper feeding detection unit 20 outputs the detection result of the setting of the paper 60 to the MPU 11.

[0025] The power supply unit 21 adjusts the power supplied from an external power supply and supplies it to each part of the cutting device 10. The output terminal of the GND (ground potential, 0 [V]) of the power supply unit 21 is electrically connected to the cutter blade 174. Also, as shown in FIG. 4, the power supply unit 21 has an output terminal of a predetermined power supply voltage electrically connected to the conductive parts 312A and the input terminal of the voltage detection unit 22 via the pull-up resistor 211A. Similarly, the power supply unit 21 has an output terminal of a predetermined power supply voltage electrically connected to the conductive parts 312B and the input terminal of the voltage detection unit 22 via the resistor 211B. Similarly, the power supply unit 21 has an output terminal of a predetermined power supply voltage electrically connected to the conductive parts 312C and the input terminal of the voltage detection unit 22 via the resistor 211C. The voltage detection unit 22 is a detection unit that detects the voltages of the conductive parts 312A, 312B, and 312C of the mounting table 31 according to the instruction of the MPU 11. The voltage detection unit 22 outputs the detection result of the voltage to the MPU 11. As shown in FIG. 4, the mounting table 31 has a mounting table body 311 and conductive parts 312A, 312B, and 312C.

[0026] As shown in FIG. 3, the paper 60 has a cut area 61 on the entire plane. The cut area 61 is an area for generating a cut product by cutting. As shown in FIG. 4, the mounting table body 311 is the main body of the mounting table 31 and has, for example, a rectangular shape on a plane. The conductive parts 312A, 312B, and 312C are conductors arranged at upper surface positions that do not overlap the paper 60 normally placed on the sheet 32 on the mounting table body 311.

[0027] The sheet 32 has a sheet body 321 and conductive parts 322A and 322B. The sheet body 321 is the main body of the sheet 32 and has, for example, a rectangular shape on a plane. Since the sheet body 321 is placed on the mounting table 31, it has a shape that fits within the planar shape of the mounting table body 311. The sheet body 321 is made of a soft material so that the cutter blade 174 is not damaged when the paper 60 is cut, and an adhesive for attaching the paper 60 is applied to the upper surface.

[0028] The conductive parts 322A and 322B are respectively arranged at positions overlapping (opposing) the conductive parts 312A and 312B, and are conductors penetrating in the Z-axis direction. The conductive parts 322A and 322B are electrically connected to the conductive parts 312A and 312B respectively when the sheet 32 is placed on the mounting table 31 in a normal position. The conductive parts 322A and 322B are made of a conductive material such as soft conductive rubber so that the cutter blade 174 is not damaged when the paper 60 is cut.

[0029] Therefore, when the cutter blade 174 contacts the conductive part 322A in a state where the sheet 32 is placed on the mounting table 31 in a normal position, the voltage detection unit 22 detects the GND of the conductive part 312A. In a similar state, when the cutter blade 174 contacts the conductive part 322B, the voltage detection unit 22 detects the GND of the conductive part 312A.

[0030] Also, when the cutter blade 174 does not contact the conductive part 322A in a state where the sheet 32 is placed on the mounting table 31 in a normal position, the voltage detection unit 22 detects the power supply voltage of the conductive part 312A. In a similar state, when the cutter blade 174 does not contact the conductive part 322B, the voltage detection unit 22 detects the power supply voltage of the conductive part 312B. Also, in a similar state, even when the cutter blade 174 contacts the sheet body 321 at a position corresponding to the conductive part 312C, the voltage detection unit 22 detects the power supply voltage of the conductive part 312C.

[0031] As shown in FIG. 5, in a state where the sheet 32 with the paper 60 attached is placed in a normal position and direction (front and back, positive and negative in the Y-axis direction), the conductive parts 322A and 322B of the sheet 32 are shown by solid lines, and the conductive parts 312A, 312B, and 312C below the sheet 32 are shown by dotted lines. In a state where the sheet 32 with the paper 60 attached is placed in a normal position and direction, the conductive parts 312A and 322A are at the same opposing position. For this reason, the conductive parts 312A and 322A are electrically connected. Also, in a state where the sheet 32 with the paper 60 attached is placed in a normal position and direction, the conductive parts 312B and 322B are at the same opposing position. For this reason, the conductive parts 312B and 322B are electrically connected.

[0032] The conductive parts 322A and 322B (conductive parts 312A and 312B) are arranged, for example, at positions on the diagonal line (point symmetry about the center point) of the plane of the sheet body 321. The conductive part 312C is arranged, for example, at a position that is line-symmetric with respect to the conductive part 322A (conductive part 312A) in the Y-axis direction from the center line and at a position and in a direction that is line-symmetric with respect to the conductive part 322B (conductive part 312B) in the X-axis direction from the center line in the plane of the sheet body 321. Since there is no conductor on the sheet 32 at the corresponding position, when the sheet 32 is in the normal position, the potential is always at the power supply voltage.

[0033] Next, with reference to FIG. 6, the first cutting process executed by the cutting device 10 will be described. FIG. 6 is a flowchart showing the first cutting process.

[0034] In advance, the cutting device 10 and the PC 50 are communicatively connected by wireless communication. It is assumed that the PC 50 generates cutting data for cutting the paper 60 into an arbitrary shape in response to a user's operation input and transmits the cutting data to the cutting device 10. The MPU 11 of the cutting device 10 receives the cutting data from the PC 50 via the wireless communication unit 16 and stores the received cutting data in the storage unit 13.

[0035] Also, the user attaches the paper 60 to be cut to a predetermined position on the sheet 32. When the paper 60 is in the normal position on the sheet 32, the cutting area 61 is arranged at a position that does not overlap the conductive parts 322A and 322B. Then, the user places the sheet 32 with the paper 60 attached at a predetermined position on the mounting table 31. When the sheet 32 is in the normal position and direction on the mounting table 31, the cutting area 61 is arranged at a position that does not overlap the conductive parts 312A, 312B, and 312C. In the present embodiment, it is assumed that the direction of the sheet 32 with the paper 60 attached is in the normal direction.

[0036] Then, the user sets the mounting table 31 on which the sheet 32 with the paper 60 attached thereto is placed in the paper feed unit 19 at the paper feed port of the paper feed unit 19. The user inputs a cut start instruction via the operation unit of the PC 50. The PC 50 transmits the input cut start instruction to the cutting device 10. In the cutting device 10, triggered by receiving the information of the execution instruction from the PC 50 via the wireless communication unit 16, the MPU 11 executes the first cutting process according to the first cutting program P1 stored in the storage unit 13. First, the MPU 11 receives (inputs) the cut start instruction from the PC 50 and completes it (step S11). Then, the MPU 11 drives the cutting unit 17, the paper feed unit 19, etc., conveys the paper 60, and moves the cutter blade 174 to the positions corresponding to the conductive parts 312A, 312B, 312C respectively and brings it into contact downward (-Z-axis direction) (step S12). In step S12, further, the MPU 11 detects the voltages at the positions corresponding to the conductive parts 312A, 312B, 312C by the voltage detection unit 22.

[0037] Here, let the voltage at the position corresponding to the detected conductive part 312A be voltage VA. Let the voltage at the position corresponding to the detected conductive part 312B be voltage VB. Let the voltage at the position corresponding to the detected conductive part 312C be voltage VC. Also, in step S12, the MPU 11 makes the pressure in the (Z-axis direction) when bringing the cutter blade 174 into contact with the positions corresponding to the conductive parts 312A, 312B, 312C weaker than the pressure during the cutting operation. This is to prevent the paper 60 from being damaged by cutting when there is paper 60 at the contact position of the cutter blade 174.

[0038] Then, the MPU 11 determines whether the voltage VC detected in step S14 is high (power supply voltage) (step S13). When the voltage VC is low (GND (ground potential, 0 [V])) (step S13; NO), it means that there is no sheet 32 on the conductive part 312C. Therefore, the MPU 11 sets it to a sheet position error state or a sheet absence state, which is either a sheet position error state where the position of the sheet 32 is an incorrect position or a sheet absence state where the sheet 32 is not on the mounting table 31 (step S14).

[0039] Then, the MPU 11 generates message data indicating that the sheet position is in an error state or the sheet is absent, and transmits the message data to the PC 50 via the wireless communication unit 16 (step S15). The first cutting process ends. Corresponding to step S15, the control unit of the PC 50 receives the message data and displays it on the display unit.

[0040] When the voltage VC is high (step S13; YES), it means that the sheet 32 is on the conductive part 312C. Therefore, the MPU 11 determines whether the voltages VA and VB detected in step S14 are low (step S16). When the voltages VA and VB are low (step S16; YES), it means that the conductive parts 322A and 322B are in normal positions. Therefore, the MPU 11 sets a normal sheet position state in which the position of the sheet 32 is normal (step S17).

[0041] Then, the MPU 11 drives the cutting unit 17, the paper feeding unit 19, etc., conveys the paper 60, moves the cutter blade 174 to a position corresponding to the cutting area 61, and cuts the paper 60 based on the cutting data in the storage unit 13 (step S18). By step S18, a cut product is generated. The first cutting process ends.

[0042] When the voltages VA and VB are high (step S16; NO), it means that the conductive parts 322A and 322B are not in normal positions. Therefore, the MPU 11 sets a sheet position error state in which the position of the sheet 32 is not normal (step S19).

[0043] Then, the MPU 11 generates message data indicating that the sheet position is in an error state or the sheet is absent, and transmits the message data to the PC 50 via the wireless communication unit 16 (step S20). The first cutting process ends. Corresponding to step S20, the control unit of the PC 50 receives the message data and displays it on the display unit.

[0044] As described above, according to this embodiment, the cutting device 10 includes a sheet 32, a cutting unit 17, a mounting table 31, a voltage detection unit 22, and an MPU 11. The sheet 32 supports the paper 60 and has conductive portions 322A and 322B. The cutting unit 17 has a cutter blade 174 for cutting the paper 60. The mounting table 31 supports the sheet 32. Conductive portions 312A and 312B are provided on the mounting table 31 at positions overlapping the conductive portions 322A and 322B when the sheet 32 is placed thereon. A conductive portion 312C is provided on the mounting table 31 at a position not overlapping the conductive portions 322A and 322B. The voltage detection unit 22 detects the voltages generated in the conductive portions 312A, 312B, and 311C. The MPU 11 causes the voltage detection unit 22 to detect the voltage when the cutter blade 174 contacts the positions on the sheet 32 corresponding to the conductive portions 312A, 312B, and 311C, and based on the voltage detection results, determines whether the sheet 32 is correctly placed on the mounting table 31.

[0045] Therefore, it is possible to determine whether the sheet 31 is correctly placed on the mounting table 31.

[0046] The MPU 11 determines whether the sheet 32 is placed at a normal position on the mounting table 31 based on the voltage detection results. Therefore, when the sheet 32 is placed at a normal position on the mounting table 31, the cutting operation of the paper 60 by the cutter blade 174 can be performed, and the cutter blade 174 can be prevented from damaging the mounting table 31.

[0047] When the MPU 11 determines that the sheet 32 is not placed at a normal position on the mounting table 31, it notifies that the sheet 32 is not placed at a normal position on the mounting table 31 by displaying a message on the PC 50. Therefore, the user can recognize that the sheet 32 is not placed at a normal position on the mounting table 31, and can take necessary measures for the cutter blade 174 to perform a normal cutting operation on the paper 60. The measures here are, for example, adjusting the position of the sheet 32 on the mounting table 31.

[0048] The MPU 11 determines whether the sheet 32 is placed on the mounting table 31 based on the voltage detection result. Therefore, it is possible to accurately determine whether the sheet 32 is placed on the mounting table 31.

[0049] When the MPU 11 determines that the sheet 32 is not placed on the mounting table 31, it notifies that the sheet 32 is not placed on the mounting table 31 by displaying a message on the PC 50. Therefore, the user can recognize that the sheet 32 is not placed on the mounting table 31, and can take necessary measures for the cutter blade 174 to normally cut the paper 60. This measure is, for example, to place the sheet 32 on the mounting table 31.

[0050] The cutter blade 174 is grounded. The conductive parts 312A, 312B, and 312C have a power supply voltage applied thereto. Therefore, the voltage can be detected more accurately, and it is possible to more accurately determine whether the cutter can operate normally.

[0051] The MPU 11 makes the pressure for bringing the cutter blade 174 into contact with the positions corresponding to the conductive parts 312A, 312B, and 312C to detect the voltage weaker than the pressure during the cutting operation. Therefore, when the paper 60 is at the contact position of the cutter blade 174, it is possible to prevent the paper 60 from being damaged.

[0052] (Modification example) With reference to FIGS. 7 to 12, a modification example of the above embodiment will be described. FIG. 7 is a top view showing the mounting table 41 of this modification example. FIG. 8 is a top view showing the sheet 42 arranged in the normal direction of this modification example. FIG. 9 is a flowchart showing the second cutting process. FIG. 10 is a top view showing the sheet 42 in a state where the front and back are reversed. FIG. 11 is a top view showing the sheet 42 in a state where the front and back are reversed. FIG. 12 is a top view showing the sheet 42 in a state where the front and back are reversed and the front and back are reversed.

[0053] The above-described embodiment was configured to determine whether or not the sheet 32 placed on the mounting table 31 was in a normal position. This modified example is configured to determine whether or not the sheet 42 placed on the mounting table 41 is in a normal direction. The normal direction refers to the normal front and back states in the inversion of the X-axis direction and the normal front (+Y direction) and back (-Y direction) states in the rotation of the XY plane in the Z-axis direction. Here, the normal inversion state is referred to as the normal front and back state, and the abnormal inversion state is referred to as the reversed front and back state. Also, the normal rotation state is referred to as the normal front and back state, and the abnormal rotation state is referred to as the reversed front and back state.

[0054] The device configuration of this modified example uses, in the cutting device 10 of the above-described embodiment, the mounting table 41 shown in FIG. 7 in place of the mounting table 31 and the sheet 42 shown in FIG. 8 in place of the sheet 32. Further, it is assumed that the storage unit 13 of the cutting device 10 of this modified example stores a second cutting program for executing a second cutting process described later in place of the first cutting program P1.

[0055] As shown in FIG. 7, the mounting table 41 includes a mounting table main body 411 and conductive parts 412A, 412B, 412C. The mounting table main body 411 is the same as the mounting table main body 311 of the above-described embodiment. The conductive parts 412A, 412B, 412C are the same as the conductive parts 312A, 312B, 312C of the above-described embodiment, respectively. However, the conductive parts 412B, 412C are different in planar position from the conductive parts 312B, 312C. The conductive parts 412B, 412C are respectively arranged at positions on a plane shifted by a predetermined distance to the +Y direction side from the conductive parts 312B, 312C.

[0056] As shown in FIG. 8, the sheet 42 has a sheet body 421 and conductive parts 422A and 422B. Note that in FIG. 8, the conductive parts 422A and 422B are shown by solid lines, and the conductive parts 412A, 412B, and 412C of the mounting table 41 on which the sheet 42 is placed are shown by dotted lines. The same applies to FIGS. 10 to 12. The sheet body 421 is the same as the sheet body 321 in the above-described embodiment. The conductive parts 422A and 422B are the same as the conductive parts 322A and 322B in the above-described embodiment, respectively.

[0057] However, the position of the conductive part 422B on the plane is different from that of the conductive part 322B. The conductive part 412B is located at a position on the plane corresponding to the conductive part 412B and is displaced by a predetermined distance in the +Y direction side from the conductive part 322B.

[0058] Therefore, the conductive parts 422A and 422B (conductive parts 412A and 412B) are not arranged at positions on the diagonal line (point-symmetrical) of the plane of the sheet body 421. The conductive part 412C is not arranged at a position that is line-symmetrical with the conductive part 422A (conductive part 412A) in the Y-axis direction and line-symmetrical with the conductive part 422B (conductive part 412B) in the X-axis direction on the plane of the sheet body 421. Also, in a state where the sheet 42 is arranged in a normal direction and position on the mounting table 41, the conductive parts 422A and 422B are respectively arranged at positions where they overlap with the conductive parts 412A and 412B.

[0059] Next, with reference to FIGS. 9 to 12, the operation of the cutting device 10 of this modified example will be described. Similar to the first cutting process in the above-described embodiment, the cutting device 10 and the PC 50 are communicatively connected by wireless communication in advance. The MPU 11 receives cutting data from the PC 50 via the wireless communication unit 16 and stores the received cutting data in the storage unit 13.

[0060] Further, the user attaches the paper 60 to be cut to a predetermined position on the sheet 42. When the paper 60 is in the normal position on the sheet 42, the cut area 61 is arranged at a position that does not overlap with the conductive parts 422A and 422B. Then, the user places the sheet 42 with the paper 60 attached thereon at a predetermined position on the mounting table 41. When the sheet 42 is in the normal direction and position, the cut area 61 is arranged at a position that does not overlap with the conductive parts 412A, 412B, and 412C.

[0061] Then, the user sets the mounting table 41 on which the sheet 42 with the paper 60 attached thereon is placed in the paper feeding unit 19 to the paper feeding port of the paper feeding unit 19. The user inputs a cut start instruction via the operation unit of the PC 50. The PC 50 transmits the input cut start instruction to the cutting device 10. In the cutting device 10, triggered by receiving the information of the execution instruction from the PC 50 via the wireless communication unit 16, the MPU 11 executes the second cut process according to the second cut program stored in the storage unit 13.

[0062] As shown in FIG. 9, first, the MPU 11 executes step S31. Step S31 is the same as step S11 of the first cut process in FIG. 6. Then, the MPU 11 drives the cutting unit 17, the paper feeding unit 19, etc., conveys the paper 60, and moves the cutter blade 174 to the positions corresponding to the conductive parts 412A, 412B, and 412C respectively and brings it into contact downward (step S32). In step S32, further, the MPU 11 detects the voltage at the positions corresponding to the conductive parts 412A, 412B, and 412C by the voltage detection unit 22. Here, let the voltage at the position corresponding to the detected conductive part 412A be voltage VA. Let the voltage at the position corresponding to the detected conductive part 412B be voltage VB. Let the voltage at the position corresponding to the detected conductive part 412C be voltage VC.

[0063] Then, the MPU 11 determines whether the voltage VC detected in step S32 is high (power supply voltage) and the voltages VA and VB are low (GND) (step S33). When the voltage VC is high and the voltages VA and VB are low (step S33; YES), it means that the sheet 42 in the normal direction shown in FIG. 8 is placed on the mounting table 41. Therefore, the MPU 11 sets a sheet direction normal state in which the direction of the sheet 42 is the normal direction (step S34). Then, the MPU 11 executes step S35 and ends the second cutting process. Step S35 is the same as step S18 in FIG. 6.

[0064] When the voltage VC is high and the voltages VA and VB are not low (step S33; NO), the MPU 11 determines whether the voltage VC detected in step S32 is low and the voltages VA and VB are high (step S36). When the voltage VC is low and the voltages VA and VB are high (step S36; YES), as shown in FIG. 10, it means that the sheet 42 with the front and back reversed in the X-axis direction of the sheet 42 in the normal direction shown in FIG. 8 is placed on the mounting table 41. Therefore, the MPU 11 sets a sheet X-axis direction front and back reversed state in which the direction of the sheet 42 is front and back reversed in the X-axis direction (step S37).

[0065] Then, the MPU 11 generates message data indicating that the sheet is in the sheet X-axis direction front and back reversed state, and transmits the message data to the PC 50 via the wireless communication unit 16 (step S38). The second cutting process ends. Corresponding to step S38, the control unit of the PC 50 receives the message data and displays it on the display unit.

[0066] When the voltage VC is low and the voltages VA and VB are not high (step S36; NO), the MPU 11 determines whether the voltages VC, VA, and VB detected in step S32 are high (step S39). When the voltages VC, VA, and VB are high (step S39; YES), as shown in FIG. 11, it means that the normal-direction sheet 42 in FIG. 8 is not turned over and the front (-Y direction) and back (+Y direction) reversed sheet 42 is placed on the mounting table 41. Alternatively, as shown in FIG. 12, it means that the front and back reversed sheet 42 with the normal-direction sheet 42 in FIG. 8 turned over in the Y-axis direction is placed on the mounting table 41. Therefore, the MPU 11 sets the sheet front-back reversed state where the front and back directions of the sheet 42 are reversed, or the sheet Y-axis direction front-back reversed state where the direction of the sheet 42 is front-back reversed in the Y-axis direction (step S40).

[0067] Then, the MPU 11 generates message data indicating that it is in the sheet front-back reversed state or the sheet Y-axis direction front-back reversed state, and transmits the message data to the PC 50 via the wireless communication unit 16 (step S41). The second cutting process ends. Corresponding to step S41, the control unit of the PC 50 receives the message data and displays it on the display unit.

[0068] When the voltages VC, VA, and VB are not high (step S39; NO), the MPU 11 sets other abnormal states where the position of the sheet 42 is not normal (step S42). Then, the MPU 11 generates message data indicating that it is in other abnormal states, and transmits the message data to the PC 50 via the wireless communication unit 16 (step S43). The second cutting process ends. Corresponding to step S43, the control unit of the PC 50 receives the message data and displays it on the display unit.

[0069] As described above, according to this modification example, the MPU 11 determines whether the sheet 32 is placed on the mounting table 31 in the normal direction based on the voltage detection result. Therefore, it is possible to determine whether the sheet 32 is placed on the mounting table 31 in the normal direction.

[0070] Further, when the MPU 11 determines that the sheet 32 is not placed on the mounting table 31 in the normal direction, it notifies the fact that the sheet 32 is not placed on the mounting table 31 in the normal direction by displaying a message on the PC 50. Thus, the user can take necessary measures for the cutter blade 174 to cut the paper 60 normally. This measure is, for example, to adjust the direction (front / back, top / bottom) of the sheet 32 placed on the mounting table 31.

[0071] In the above description, an example in which the storage unit 13 such as a flash memory is used as the computer-readable medium of the program according to the present invention is disclosed, but the present invention is not limited to this example. As other computer-readable media, it is possible to apply a portable recording medium such as a ROM (Read Only Memory) or a CD-ROM. Further, a carrier wave is also applied to the present invention as a medium for providing the data of the program according to the present invention via a communication line.

[0072] Note that the description in the above embodiment is an example of the cutting device, the electronic device, the cutting determination method, and the program according to the present invention, and the present invention is not limited thereto.

[0073] For example, in the above embodiment, the configuration is such that the MPU 11 of the cutting device 10 generates message data, transmits it to the PC 50, and causes it to be displayed, but the present invention is not limited thereto. For example, the cutting device 10 may be configured to include a display unit such as an LCD (Liquid Crystal Display) capable of displaying a message. In this configuration, the MPU 11 generates message data and displays it on the display unit of its own device.

[0074] In addition, in the above-described embodiments and modifications, the cutting device 10 in which the contact portion that contacts the position corresponding to the conductive portion of the mounting table is the cutter blade 174 has been described, but the present invention is not limited thereto. As the contact portion that contacts the position corresponding to the conductive portion of the mounting table, an electronic device configuration such as a cutting device including other contact portions such as a fixture for holding the sheet may be used. For example, the MPU 11 of the cutting device 10 causes the voltage detection unit 22 to detect the voltage when the contact portion contacts the positions corresponding to the conductive portions 312A and 312B in the sheet 32, and causes the voltage detection unit 22 to detect the voltage when the contact portion contacts the position corresponding to the conductive portion 312C in the sheet 32, and determines whether or not the cutting operation of the paper 60 can be normally performed based on the voltage detection results. Also with this configuration, it is possible to determine whether or not the sheet 32 is correctly placed on the mounting table 31.

[0075] Further, the cutting device 10 may be configured to have an image forming function on the paper 60. For example, the cutting device 10 has a pen instead of the cutter blade 174, and forms an image by drawing an image with the pen on the paper 60 to be conveyed.

[0076] Although the embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, and includes the scope of the invention described in the claims and the equivalent scope thereof.

Explanation of Reference Numerals

[0077] 10 Cutting device, 11 MPU, 17 Cutting unit, 174 Cutter blade, 22 Voltage detection unit, 31, 41 Mounting table, 311, 411 Mounting table body, 32, 42 Sheet, 321, 421 Sheet body, 312A, 312B, 312C, 322A, 322B, 412A, 412B, 412C, 422A, 422B Conductive portion, 60 Paper

Claims

1. a sheet having a plurality of sheet conductive parts on which an object to be cut is placed, a cutting part having a cutter blade for cutting the object to be cut, a mounting table on which the sheet is placed and having a first main body conductive part disposed so as to be electrically connectable at a position overlapping the sheet conductive part when the sheet is placed, and a second main body conductive part provided at a position not overlapping the sheet conductive part, a voltage detection part for detecting a voltage generated in the first main body conductive part and the second main body conductive part, a control part that causes the voltage detection part to detect the voltage when the cutter blade is brought into contact with a position corresponding to the first main body conductive part on the sheet, and causes the voltage detection part to detect the voltage when the cutter blade is brought into contact with a position corresponding to the second main body conductive part on the sheet, and determines whether or not the sheet is correctly placed on the mounting table based on the voltage detection results, a cutting device characterized by comprising.

2. The cutting device according to claim 1, wherein the control part determines whether or not the sheet is placed at a normal position on the mounting table based on the voltage detection results.

3. The cutting device according to claim 2, wherein the control part notifies that the sheet is not placed at a normal position on the mounting table when it is determined that the sheet is not placed at a normal position on the mounting table.

4. The cutting device according to claim 1, wherein the control part determines whether or not the sheet is placed on the mounting table based on the voltage detection results.

5. The cutting device according to claim 4, wherein the control part notifies that the sheet is not placed on the mounting table when it is determined that the sheet is not placed on the mounting table.

6. The cutting device according to claim 1, wherein the control part determines whether or not the sheet is placed on the mounting table in a normal direction based on the voltage detection results.

7. The cutting device according to claim 6, wherein the control part notifies that the sheet is not placed on the mounting table in a normal direction when it is determined that the sheet is not placed on the mounting table in a normal direction.

8. the cutter blade is grounded, The cutting device according to claim 1, wherein the first main body conductive part and the second main body conductive part are applied with a power supply voltage.

9. The control unit weakens the pressure for bringing the cutter blade into contact with positions corresponding to the first main body conductive part and the second main body conductive part to detect the voltage, as compared with the pressure during the cutting operation. The cutting device according to any one of claims 1 to 8.

10. A sheet having a plurality of sheet conductive parts on which an object to be cut is placed, A contact part that contacts the sheet, A mounting table on which the sheet is placed and provided with a first main body conductive part disposed so as to be electrically connectable at a position overlapping the sheet conductive part when the sheet is placed, and a second main body conductive part is provided at a position not overlapping the sheet conductive part, A voltage detection unit that detects the voltage generated in the first main body conductive part and the second main body conductive part, An electronic device comprising: a control unit that causes the voltage detection unit to detect the voltage when the contact part contacts a position corresponding to the first main body conductive part on the sheet, and causes the voltage detection unit to detect the voltage when the contact part contacts a position corresponding to the second main body conductive part on the sheet, and determines whether or not the sheet is correctly placed on the mounting table based on the voltage detection results.

11. A sheet having a plurality of sheet conductive parts on which an object to be cut is placed, A cutting part having a cutter blade for cutting the object to be cut, A cutting determination method for a cutting device, comprising: a mounting table on which the sheet is placed and provided with a first main body conductive part disposed so as to be electrically connectable at a position overlapping the sheet conductive part when the sheet is placed, and a second main body conductive part is provided at a position not overlapping the sheet conductive part, The method includes a step of causing the voltage detection unit that detects the voltage generated in the first main body conductive part and the second main body conductive part to detect the voltage when the cutter blade contacts a position corresponding to the first main body conductive part on the sheet, and causing the voltage detection unit to detect the voltage when the cutter blade contacts a position corresponding to the second main body conductive part on the sheet, and determining whether or not the sheet is correctly placed on the mounting table based on the voltage detection results. A cutting determination method characterized by including.

12. A sheet having a plurality of sheet conductive parts on which an object to be cut is placed, A contact portion that contacts the sheet, A mounting table on which the sheet is placed and provided with a first main body conductive portion disposed so as to be electrically connectable at a position overlapping the sheet conductive portion when the sheet is placed, and a second main body conductive portion is provided at a position not overlapping the sheet conductive portion, and a method for determining cutting of an electronic device comprising: A step of causing a voltage detecting unit that detects voltages generated in the first main body conductive portion and the second main body conductive portion to detect a voltage when the contact portion is brought into contact with a position corresponding to the first main body conductive portion on the sheet, causing the voltage detecting unit to detect a voltage when the contact portion is brought into contact with a position corresponding to the second main body conductive portion on the sheet, and determining whether or not the sheet is correctly placed on the mounting table based on the voltage detection results. A cutting determination method characterized by including.

13. A sheet having a plurality of sheet conductive portions on which a cutting object is placed, A cutting unit having a cutter blade for cutting the cutting object, A computer of a cutting device including a mounting table on which the sheet is placed and provided with a first main body conductive portion disposed so as to be electrically connectable at a position overlapping the sheet conductive portion when the sheet is placed, and a second main body conductive portion is provided at a position not overlapping the sheet conductive portion, A control unit that causes a voltage detecting unit that detects voltages generated in the first main body conductive portion and the second main body conductive portion to detect a voltage when the cutter blade is brought into contact with a position corresponding to the first main body conductive portion on the sheet, and causes the voltage detecting unit to detect a voltage when the cutter blade is brought into contact with a position corresponding to the second main body conductive portion on the sheet, and determines whether or not the sheet is correctly placed on the mounting table based on the voltage detection results, A program for functioning as.

14. A sheet having a plurality of sheet conductive portions on which a cutting object is placed, A contact portion that contacts the sheet, A computer of an electronic device including a mounting table on which the sheet is placed and provided with a first main body conductive portion disposed so as to be electrically connectable at a position overlapping the sheet conductive portion when the sheet is placed, and a second main body conductive portion is provided at a position not overlapping the sheet conductive portion, The voltage when the contact portion is brought into contact with a position corresponding to the first main body conductive portion on the sheet is detected by a voltage detection unit that detects the voltages generated in the first main body conductive portion and the second main body conductive portion. The voltage when the contact portion is brought into contact with a position corresponding to the second main body conductive portion on the sheet is detected by the voltage detection unit, and a control unit determines whether or not the sheet is correctly placed on the placement table based on the voltage detection results. A program for causing the above to function.

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