JP5803300B2 - TAPE CUTTING DEVICE, TAPE PRINTING DEVICE PROVIDED WITH THE SAME, AND METHOD FOR CONTROLLING STEPPING MOTOR - Google Patents

Description

  The present invention relates to a tape cutting device configured to be able to individually introduce a plurality of types of processing tapes having different cutting loads, a tape printing device provided with the tape cutting device, and a stepping motor control method.

  Conventionally, as a processing tape cutting device, a first cutting mechanism having a full-cut function, a second cutting mechanism having a half-cut function, a single cutter motor for driving them, and driving of the cutter motor And a drive mechanism that drives a first cutting mechanism and a second cutting mechanism based on the above (see Patent Document 1). The second cutting mechanism has a cradle and a movable blade movable toward and away from the cradle, and is movable by bringing a pair of convex portions provided at both ends of the movable blade into contact with the cradle. A gap corresponding to the thickness corresponding to the thickness of the peeling tape is formed between the blade and the cradle, and only the main tape of the processing tape can be cut. Also, during half-cutting, the cutter motor can be cut reliably by driving for a longer number of seconds than the time until the convex part of the movable blade comes into contact with the cradle. Can do. At that time, a torque limiter mainly composed of a coil spring is interposed in the transmission mechanism of the drive mechanism in order to prevent a torque exceeding a certain level from being applied to the cutter motor.

Japanese Patent No. 4539620

  However, in such a conventional cutting device, it is configured to perform torque control of each cutting mechanism using the torque limiter, and at this time, when multiple types of processing tapes having different cutting loads are individually introduced, There was a problem that this could not be accommodated. That is, in the torque limiter as described above, the torque control value cannot be changed after assembling. Therefore, when the cutting load is changed when the processing tape is changed, it is not possible to cope with this. In other words, there is a problem that it is not possible to appropriately perform a cutting operation on a plurality of types of processing tapes having different cutting loads. On the other hand, it is conceivable to perform torque control using a torque limiter that can change the torque control value. However, this complicates the apparatus and increases the size of the entire apparatus. .

  The present invention relates to a tape cutting device capable of appropriately performing a cutting operation with respect to a plurality of types of processing tapes having different cutting loads, a tape printing device including the tape cutting device, and a stepping motor control method. It is an issue to provide.

The tape cutting device of the present invention is a tape cutting device configured to be capable of individually cutting a plurality of types of processing tapes having different cutting loads, and a cutting unit for cutting the processing tapes individually, and a cutting unit A stepping motor for operating the tape, a tape type detecting means for detecting the type of a plurality of processing tapes, and a motor control means for controlling the stepping motor. Each processing tape has a peeling tape attached to the main body tape. The cutting means has a half cutter for cutting the main body tape or the peeling tape, and the motor control means can change the cycle of the drive pulse applied to the stepping motor based on the detection result of the tape type detection means. while have a modulating means for, this to continue the operation of the cutting means until the stepping motor is out-of The features.

The stepping motor control method of the present invention is a stepping motor control method for operating a cutting means to individually cut a plurality of types of processing tapes having different loads, and detecting a type of the plurality of types of processing tapes. A modulation step for changing the cycle of the drive pulse applied to the stepping motor based on the detection result in the detection step, and a cutting step for operating the cutting means with the drive pulse having a cycle changed by the modulation step , Each processing tape has a peeling tape attached to the main body tape, and the cutting means has a half cutter that cuts the main body tape or the peeling tape, and in the cutting process, the stepping motor is in a step-out state. The operation of the cutting means is continued .

According to these configurations, the torque can be adjusted according to the cutting load by modulating the period of the drive pulse according to the type of the processing tape. Therefore, it is possible to appropriately perform the cutting operation with a simple configuration without using a torque limiter or the like for the plurality of types of processing tapes having different cutting loads. In addition, as a kind of processing tape, the material of a processing tape, tape width, tape thickness, etc. can be considered, for example.
Further, since the torque during the half-cut operation can be controlled according to the cutting load of the processing tape, only one of the tapes can be cut reliably, and the half-cut can be made with high accuracy.
Furthermore, when the operation of the cutting means is continued, the half-cut hits the processing tape, and the torque of the stepping motor gradually increases and finally reaches the step-out torque (becomes out-of-step state). When the stepping motor enters the step-out state, the torque does not increase any more, so that the torque is stabilized to the step-out torque as long as the cutting operation is continued. On the other hand, the step-out torque can be adjusted by the period of the drive pulse or the like from the torque characteristics of the stepping motor. That is, by using a stepping motor and continuing the cutting operation until the stepping motor is in a step-out state, the torque of the stepping motor is controlled to a predetermined step-out torque adjusted in advance. Thus, the torque that becomes the cutting force can be controlled to a predetermined value only by controlling the stepping motor, and the cutting force control of the half cutter can be accurately performed with a simple configuration.

  In the above-described tape cutting device, it is preferable that the tape type detecting means detects the tape width of at least a plurality of types of processing tapes.

  According to this configuration, an appropriate cutting operation can be performed on processing tapes having different tape widths.

  A tape printer according to the present invention includes the above-described tape cutting device and a printing unit that performs printing on a processing tape.

  According to this configuration, by using the tape cutting device, a label with a half cut can be accurately created with a simple configuration.

  In this case, a full cutter for cutting the main body tape and the peeling tape, and a power transmission means for transmitting the rotational power of one of the forward and reverse directions of the stepping motor to the half cutter and the other rotational power to the full cutter are further provided. It is preferable.

  According to this configuration, since the drive source (stepping motor) can be shared by the half cutter and the full cutter, the entire apparatus can be simplified. The torque control function can also be applied to a full cutter, and a full cut operation by the full cutter can be performed with high accuracy.

It is an external appearance perspective view of the tape printer of a closed state concerning this embodiment. It is an external appearance perspective view of the tape printer of an open state. It is the perspective view (a) and top view (b) which showed the tape feed power system. It is the perspective view which showed the tape discharge mechanism. They are a perspective view (a) and an exploded perspective view (b) showing a tape cutting mechanism. (A) is the right view which showed the tape cutting mechanism. (B) is the left view which showed the tape cutting mechanism. (C) is the right view which showed the crank disc periphery. (D) is the left view which showed the crank disc periphery. It is the figure which showed the behavior of the full cut and half cut by the forward / reverse rotation of a crank disk. It is a control block diagram of a tape printer. It is a flowchart of a full cut operation | movement. It is a flowchart of a half cut operation. (A) is the figure which showed the operation | movement sequence of full cut operation | movement. (B) is the figure which showed the operation | movement sequence of the half cut operation | movement with respect to the printing tape of tape width "24mm". (C) is the figure which showed the operation | movement sequence of the half cut operation | movement with respect to the printing tape of tape width "12mm".

  Hereinafter, a tape cutting device according to an embodiment of the present invention, a tape printing device including the tape cutting device, and a stepping motor control method will be described with reference to the accompanying drawings. In the embodiment, a tape printer having a half-cut function is illustrated. This tape printing apparatus performs printing on a printing tape (processing tape) to be printed, while feeding it, then cuts the printed part of the printing tape while appropriately half-cutting the printing tape, Create a label. In this embodiment, “front”, “rear”, “left”, “right”, “upper”, and “lower” follow the direction (front view) viewed from the user who uses the tape printer.

  As shown in FIGS. 1 and 2, the tape printer 1 contains a device main body 2 that performs a printing process on the print tape T, a printing tape T, and an ink ribbon R, and is detachably attached to the device main body 2. A tape cartridge C. In the tape cartridge C, a printing tape T with a peeling tape Tb to be printed is accommodated so as to be freely fed out.

  In the apparatus main body 2, an outer shell is formed by an apparatus case 3, and a keyboard 5 having various keys 4 is disposed on the upper surface of the front half of the apparatus case 3. On the other hand, an opening / closing lid 6 is widely provided on the upper left surface of the rear half of the device case 3, and a lid opening button 8 for opening the opening / closing lid 6 is provided on the front side of the opening / closing lid 6. Further, a rectangular display 9 for displaying an input result from the keyboard 5 and the like is disposed on the upper right side of the rear half of the device case 3.

  When the lid opening button 8 is pressed to open the opening / closing lid 6, a cartridge mounting portion 10 into which the tape cartridge C is mounted is recessed and the tape cartridge C is in a state in which the opening / closing lid 6 is opened. Is detachably mounted on the cartridge mounting portion 10. Further, the open / close lid 6 is formed with a viewing window 13 for visually confirming whether the tape cartridge C is mounted or not mounted in a state in which the lid 6 is closed.

  A tape discharge port 17 connected to the cartridge mounting portion 10 is formed on the left side of the apparatus case 3, and a tape discharge path 18 is formed between the cartridge mounting portion 10 and the tape discharge port 17 ( (See FIG. 2). In the apparatus case 3, the tape cutting mechanism 11 that cuts the printing tape T and the tape piece of the cut printing tape T are discharged from the tape discharge port 17 from the upstream side so as to face the tape discharge path 18. The tape discharge mechanism 12 is assembled and incorporated (details will be described later). The tape cutting mechanism 11 includes a full cutter 61 and a half cutter 62, and is configured to perform a full cut for cutting the entire printing tape T and a half cut for cutting only the recording tape Ta (main body tape). Has been.

  On the other hand, the cartridge mounting unit 10 has a thermal type print head 21 having a plurality of heating elements in the head cover 20, a platen drive shaft 23 facing the print head 21, and a winding drive for winding an ink ribbon R described later. A shaft 24 and a positioning projection 25 of a tape reel 32 to be described later are disposed. The platen drive shaft 23 and the take-up drive shaft 24 pass through the bottom plate 27 of the cartridge mounting portion 10, and a tape that is a power system that drives the platen drive shaft 23 and the take-up drive shaft 24 in the space below the bottom plate 27. A feed power system 26 (see FIG. 3) is disposed.

  The tape cartridge C is configured such that a tape reel 32 around which a printing tape T is wound and a ribbon reel 33 around which an ink ribbon R is wound at a lower right portion are rotatably accommodated in an upper center portion inside the cartridge case 31. The printing tape T and the ink ribbon R have the same width. A through hole 34 is formed in the lower left portion of the tape reel 32 to be inserted into the head cover 20 that covers the print head 21. Further, in the vicinity of the through-hole 34, a platen roller 35 that is fitted to the platen drive shaft 23 and is driven to rotate is disposed corresponding to a portion where the printing tape T and the ink ribbon R overlap. On the other hand, a ribbon take-up reel 36 is disposed in the vicinity of the ribbon reel 33, and the take-up drive shaft 24 is fitted and rotated.

  When the tape cartridge C is mounted on the cartridge mounting portion 10, the through hole 34 is formed in the head cover 20, the center hole of the tape reel 32 is positioned in the positioning projection 25, and the center hole of the platen roller 35 is driven in the platen drive shaft 23. The center hole of the ribbon take-up reel 36 is inserted into the shaft 24. By the rotational drive of the platen drive shaft 23 and the take-up drive shaft 24, the printing tape T is fed out from the tape reel 32, and the ink ribbon R is fed out from the ribbon reel 33, and the printing tape T and After overlapping and running in parallel, the printing tape T is fed out of the cartridge case 31 and the ink ribbon R is taken up by the ribbon take-up reel 36. In a portion where the print tape T and the ink ribbon R run side by side, the platen roller 35 and the print head 21 face so as to sandwich them, and so-called print feed is performed.

  The printing tape T is composed of a recording tape (main body tape) Ta having a pressure-sensitive adhesive layer formed on the back surface, and a release tape Tb adhered to the recording tape Ta by the pressure-sensitive adhesive layer. The printing tape T is wound and accommodated on the tape reel 32 with the recording tape Ta on the outside and the release tape Tb on the inside. In addition, a plurality of types of printing tape T having different tape types (tape width, ground color of the printing tape T, ground pattern, material (texture), etc.) are prepared. In the cartridge case 31 corresponding to the tape width, It is accommodated together with the ink ribbon R. That is, the types of tape widths are “6 mm”, “9 mm”, “12 mm”, “18 mm”, “24 mm”, and “36 mm”. The apparatus main body 2 uses these printing tapes T as tape cartridges C. It is configured to be able to be introduced individually.

  A plurality of holes (not shown) for specifying the type of the printing tape T are provided on the back surface of the cartridge case 31. On the other hand, the cartridge mounting portion 10 corresponding to a plurality of holes is provided with a plurality of tape identification sensors (tape type detecting means) 37 (see FIG. 8) such as microswitches for detecting these bit patterns, By detecting the state of a plurality of holes by the tape identification sensor 37, the tape type can be determined.

  When the tape cartridge C is mounted on the cartridge mounting portion 10 and the opening / closing lid 6 is closed, the print head 21 rotates via a head release mechanism (not shown), and the print head 21 and the platen roller 35 are With the print tape T and the ink ribbon R sandwiched therebetween, the tape printer 1 enters a print standby state. When the printing operation is instructed after the input / editing of the print data, the platen roller 35 is rotationally driven to feed out the print tape T from the tape cartridge C, and the print head 21 is driven to apply the desired print tape T to the print tape T. Print. At the same time as the printing operation, the ink ribbon R is wound up in the tape cartridge C, but the printed portion of the printing tape T is sent out from the tape discharge port 17 to the outside of the apparatus. When the printing is completed, the feeding of the blank portion is performed, and then the printing tape T and the ink ribbon R are stopped. Subsequently, the printed portion of the printing tape T is cut (full cut) while the printing tape T is half cut by the tape cutting mechanism 11. Thereby, a label on which a desired character or the like is printed is created. The cut tape piece is discharged from the tape discharge port 17 by the operation of the tape discharge mechanism 12.

  Here, the tape feeding power system 26, the tape cutting mechanism 11 and the tape discharging mechanism 12 will be described with reference to FIGS. The tape feed power system 26 includes a tape feed motor 41 that is a power source, and a feed power transmission mechanism 42 that transmits the power of the tape feed motor 41 to the platen drive shaft 23 and the take-up drive shaft 24. That is, the tape feed motor 41 is also used as a power source for the platen drive shaft 23 and the take-up drive shaft 24. Although details will be described later, the tape feed motor 41 is also used as a power source for the discharge drive roller 111 of the tape discharge mechanism 12.

  As shown in FIG. 3, the feed power transmission mechanism 42 has an input gear 51 that meshes with a gear formed on the main shaft of the tape feed motor 41, a mesh with the input gear 51, a platen drive shaft 23 side, and a take-up drive shaft 24. A branch gear 52 that branches power to the two sides, a first output gear 53 that meshes with the branch gear 52 and rotates the take-up drive shaft 24, and a relay gear 54 that meshes with the branch gear 52; A second output gear 55 that meshes with the relay gear 54 and rotates the platen roller 35 while being pivotally attached thereto is provided. When the tape feed motor 41 is driven, the platen drive shaft 23 and the take-up drive shaft 24 rotate through the gears. Thus, the ink ribbon R is transported in synchronization with the tape feed of the printing tape T.

  As shown in FIGS. 3 and 4, the tape discharge mechanism 12 includes a drive roller unit 101 having a discharge drive roller 111, a driven roller unit 102 having a discharge driven roller 113 facing the discharge drive roller 111, and a discharge drive roller. 111, a discharge power transmission mechanism 103 that transmits the power of the tape feed motor 41 to 111, and a rotation lever 104 that moves the discharge driven roller 113 between the nipping position and the retraction position when the opening / closing lid 6 is opened and closed. I have. That is, a discharge roller for discharging the printing tape T is constituted by a nip roller composed of the discharge drive roller 111 and the discharge driven roller 113.

  The drive roller unit 101 includes a discharge drive roller 111 that is in rolling contact with the peeling tape Tb side of the printing tape T, and a drive roller holder 112 that rotatably supports the discharge drive roller 111. The discharge power transmission mechanism 103 is configured by a gear train composed of five gears. The upstream end meshes with the second output gear 55, and the downstream end meshes with the gear portion 111 a of the discharge drive roller 111. That is, when the tape feed motor 41 is driven, the discharge drive roller 111 rotates together with the platen drive shaft 23 and the take-up drive shaft 24. As a result, the tape discharge mechanism 12 is driven in synchronization with the tape feed of the printing tape T (rotation of the platen roller 35). The discharge drive roller 111 is electrically connected with a tape presence / absence detection circuit 118 (see FIG. 8) for detecting whether or not the print tape T is present between the discharge drive roller 111 and the discharge driven roller 113. Yes. Thereby, abnormality determination of tape feeding is performed.

  The driven roller unit 102 includes a discharge driven roller 113 that is in rolling contact with the recording tape Ta side of the printing tape T, and a driven roller holder 114 that rotatably supports the discharge driven roller 113. The driven roller holder 114 is slidably supported by the fixed holder 115 fixed to the base frame, the movable holder 116 that supports the discharge driven roller 113, and the movable holder 116 is biased to the retracted position. And a return spring (not shown).

  The rotation lever 104 is rotatably supported by the driven roller holder 114 at an intermediate portion, and a contact portion 104a that contacts the movable holder 116 is formed at the tip, and the opening / closing lid 6 is formed at the rear end. A projection receiving portion 104b that engages with an operation projection 117 (see FIG. 2) provided on the projection is formed. When the opening / closing lid 6 is closed, the operating protrusion 117 acts on the protrusion receiving portion 104b, and rotates the rotation lever 104. As the rotation lever 104 rotates, the contact portion 104a acts on the movable holder 116 and moves the discharge driven roller 113 to the clamping position via the movable holder 116. In the state where it is located at the clamping position, the discharge driven roller 113 serves as the discharge driving roller 111 to clamp the printing tape T. On the other hand, when the opening / closing lid 6 is opened, the operating protrusion 117 does not act on the protrusion receiving portion 104b. Therefore, the movable holder 116 is pushed by the return spring, and the discharge driven roller 113 is retracted from the clamping position to the retracted position. As described above, the rotation lever 104 moves the discharge driven roller 113 between the nipping position and the retracted position as the opening / closing lid 6 is opened and closed.

  As shown in FIGS. 5 and 6, the tape cutting mechanism 11 includes a scissor-type full cutter 61 that fully cuts the printing tape T, and a press-cut half cutter (cutting means) 62 that half-cuts the printing tape T. , A cutter motor 63 as a power source, a cutter power transmission mechanism (power transmission means) 64 for transmitting the power of the cutter motor 63 to the full cutter 61 and the half cutter 62, and a cutter frame 65 and a gear frame 66 for supporting them. It is equipped with. That is, the cutter motor 63 is also used as a power source for the full cutter 61 and the half cutter 62. Further, the “full cut” here is a cutting process in which the entire printing tape T, that is, the recording tape Ta and the peeling tape Tb, is cut integrally, and the “half cut” is performed without cutting the peeling tape Tb. A cutting process for cutting only the recording tape Ta.

  The cutter motor 63 is a stepping motor and causes the full cutter 61 and the half cutter 62 to perform a cutting operation. Although details will be described later, the full cutter 61 operates in the normal rotation-reverse rotation of the cutter motor 63 from the initial position, and the half cutter 62 operates in the reverse rotation-normal rotation from the initial position. Further, at the time of half-cutting, the stepping motor step-out phenomenon is used to control the cutting torque to the printing tape T. Note that unlike DC motors, stepping motors do not cause coil seizure in a step-out state.

  The cutter power transmission mechanism 64 includes a large first gear 71 meshed with an input gear pivotally attached to the cutter motor 63 (the main shaft thereof), a second gear 72 meshed with the first gear 71, and a second gear. A small third gear 73 meshed with 72 and a crank disk 74 meshed with the third gear 73 are provided. An eccentric crank pin 75 is provided on the right end surface (on the full cutter 61 side) of the crank disc 74, and this engages with the base of the movable blade 82 of the full cutter 61. On the other hand, a cam groove 76 is formed on the left end surface of the crank disc 74 (on the half cutter 62 side), and the base portion of the cutting blade 91 in the half cutter 62 is engaged therewith. In addition, the cutter power transmission mechanism 64 includes a cutter position detection sensor 77 disposed facing one position on the peripheral surface of the crank disk 74. The cutter position detection sensor 77 is the position where the rotation position of the crank disc 74 is the initial position (ON), whether the crank disk 74 is rotated forward from the initial position (OFF: full cut), or the position rotated backward from the initial position. (OFF: half cut) is detected (see FIG. 7), and based on this, the positions of the movable blade 82 of the full cutter 61 and the cutting blade 91 of the half cutter 62 (hereinafter, cutter position) are detected.

  The full cutter 61 is of a scissor type in which a fixed blade 81 and a movable blade 82 are rotatably connected by a support shaft 83, and each printing tape T having a different tape width can be individually fully cut. . The fixed blade 81 and the movable blade 82 are formed in an “L” shape, and the base of the movable blade 82 is engaged with the crank pin 75 of the crank disk 74 to rotate the crank pin 75. A long hole 84 is provided for conversion into a reciprocating cutting operation. The fixed blade 81 includes a blade 81a and a blade holder 81b to which the blade 81a is attached. A support shaft 83 is fixed to the base of the blade holder 81b.

  The shape of the long hole 84 of the full cutter 61 is such that the forward rotation of the crank disc 74 acts on (inputs) the full cutter 61 in cooperation with the crank pin 75, and the reverse rotation of the crank disc 74 is caused by the full cutter. It is formed so as not to act on 61 (full cutter 61 rotates idly). Specifically, the long hole 84 is formed by connecting a straight hole portion 85 that corresponds to forward rotation and is formed in a straight line, and an arc hole portion 86 that corresponds to reverse rotation and is formed in an arc shape. ing. At the time of normal rotation from the initial position, the crank pin 75 moves on the straight hole portion 85 and abuts on the side surface of the crank pin 75 to apply a rotational load to the movable blade 82 to rotate the movable blade 82. On the other hand, at the time of reverse rotation from the initial position, the crank pin 75 moves on the arc hole 86 and does not apply a rotation load to the movable blade 82 (see FIG. 7).

  The half cutter 62 is a press-cut type having a cutting blade 91 for cutting into the printing tape T and a blade receiving member 92 for receiving the cut cutting blade 91, and each of the printing tapes T having different tape widths. It is configured to be half-cut. The cutting blade 91 is rotatably attached to the blade receiving member 92, and at the time of half-cutting, the recording tape Ta is cut by pressing while the cutting blade 91 is in contact with the entire area of the recording tape Ta. In addition, an engagement protrusion 93 that engages with the cam groove 76 of the crank disk 74 is formed at the base of the cutting blade 91.

  The shape of the cam groove 76 of the crank disk 74 cooperates with the engagement protrusion 93 so that the forward rotation of the crank disk 74 does not act on the half cutter 62 (the half cutter 62 idles). The reverse rotation of 74 is formed so as to act (input) to the half cutter 62. Specifically, the cam groove 76 is formed by connecting an arc-shaped arc groove portion 94 corresponding to the forward rotation and along the circumference, and an inner extending groove portion 95 extending from the arc groove portion 94 toward the center. ing. At the time of forward rotation from the initial position, the engagement protrusion 93 moves relatively on the arc groove portion 94 and does not apply a rotation load to the cutting blade 91. On the other hand, at the time of reverse rotation from the initial position, the engaging projection 93 relatively moves on the inner extending groove portion 95 and abuts on the side surface thereof to apply a rotational load to the cutting blade 91, Turn (see FIG. 7).

  That is, the cutter power transmission mechanism 64 is configured to transmit the forward rotational power of the cutter motor 63 from the initial position to the full cutter 61 and transmit the reverse rotational power to the half cutter 62. Furthermore, the reciprocating rotational movement from the initial position to the rotational position on the forward rotation side is converted into the reciprocating movement of the movable blade 82, and the reciprocating rotational movement from the initial position to the rotational position on the reverse rotation side is changed to Convert to reciprocating motion.

  Next, the control system of the tape printer 1 will be described with reference to FIG. The tape printing apparatus 1 includes an operation unit 201, a printing unit (printing unit) 202, a cutting unit (tape cutting device) 203, and a detection unit 204. The tape printer 1 also includes a display driver 211 that drives the display 9, a head driver 212 that drives the print head 21, a print feed motor driver 213 that drives the tape feed motor 41, and a cutter that drives the cutter motor 63. A drive unit 205 including a motor driver 214 is further provided. And it has the control part (motor control means and modulation means) 200 which is connected with these each part and controls the tape printer 1 whole.

  The operation unit 201 includes a keyboard 5 and a display 9, and functions as an interface with the user, such as inputting character information from the keyboard 5 and displaying various information on the display 9. The printing unit 202 includes a tape feed motor 41 and a print head 21 for rotating the platen roller 35 and the discharge drive roller 111, and the platen roller 35 is rotated by the drive of the tape feed motor 41 so that the print tape T is rotated. send. Further, the print head 21 is driven based on the input character information, whereby printing is performed on the print tape T being sent. In the printing unit 202, the discharge driving roller 111 is rotated by driving the tape feeding motor 41, and the printing tape T is discharged. The cutting unit 203 includes a cutter motor 63 that operates the full cutter 61 and the half cutter 62. When the cutter motor 63 is driven, the full cutter 61 and the half cutter 62 perform half-cutting and printing on the printing tape T after printing. Make a full cut. The detection unit 204 includes a tape identification sensor 118 and a cutter position detection sensor 77, detects the tape type, detects the cutter position, and detects the presence or absence of the printing tape T, and outputs each detection result to the control unit 200. .

  The control unit 200 includes a CPU (Control Processing Unit) 215, a ROM (Read Only Memory) 216, a RAM (Random Access Memory) 217, and a controller (IOC: Input Output Controller) 218, which are connected to each other via an internal bus 219. . The CPU 215 inputs various signals and data from each unit in the tape printer 1 via the controller 218 in accordance with a control program in the ROM 216. Further, various data in the RAM 217 is processed based on the various signals / data input, and various signal data is output to each unit in the tape printer 1 via the controller 218. Thereby, for example, based on the detection result of the detection unit 204, the control unit 200 controls printing processing and cutting processing.

  Next, with reference to FIG. 9 thru | or FIG. 11, a half cut operation | movement and a full cut operation | movement are demonstrated. FIG. 9 is a flowchart showing the full cut operation. FIG. 10 is a flowchart showing the half-cut operation. FIG. 11 is a diagram illustrating an operation sequence of a full cut operation and a half cut operation. Prior to these operations, the tape width of the printing tape T is detected in advance by the detection unit 204 (detection step), and the detected tape width is stored in the control unit 200. In addition, the cutter position is detected by the cutter position detection sensor 77, and abnormality determination of the cutter position is performed. Further, hereinafter, a position where the movable blade 82 is completely opened is referred to as an open position, and a position where the movable blade 82 is completely closed is referred to as a closed position.

  As shown in FIGS. 9 and 11A, in the full cut operation, first, the movable blade 82 is moved from the open position to the vicinity of the closed position. Specifically, the control unit 200 applies a drive pulse for forward rotation driving to the cutter motor 63 and performs acceleration control to a predetermined rotational speed for movement (for example, 2000 pps) (S1), and then at a constant speed at this rotational speed. Control (S2). Then, the number of steps for moving to the vicinity of the closing position and constant speed control are continued.

  When the movable blade 82 moves to the vicinity of the closing position, a full-cut cutting process is performed. Specifically, the period of the drive pulse applied to the cutter motor 63 is modulated, and deceleration control is performed (S3). Then, deceleration control (from 2000 pps to 800 pps) is continued until the movable blade 82 reaches the closed position, and the recording tape Ta and the release tape Tb of the printing tape T are cut. That is, the printing tape T is cut while the movement of the movable blade 82 is decelerated.

  When the full cut processing is completed, the cutter motor 63 is stopped (S4). Then, after a certain time (for example, 0.1 seconds) has passed, the movable blade 82 is moved from the closed position to the open position. Specifically, a reverse rotation drive pulse is applied to the cutter motor 63, acceleration control is performed up to a predetermined rotational speed for movement (eg, 2000 pps) (S5), and constant speed control is performed at this rotational speed (S6). . Then, if the number of steps to the vicinity of the open position and constant speed control are continued, the cutter motor 63 is controlled to decelerate (S7), and if moved to the open position, the cutter motor 63 is stopped (S8). This completes the full cut operation.

  Next, the half-cut operation will be described with reference to FIGS. 10 and 11B and 11C. Hereinafter, a position where the cutting blade 91 is completely opened is referred to as an open position, a position where the cutting blade 91 is completely closed is referred to as a closed position, and a position where the cutting blade 91 contacts the surface of the recording tape Ta. This is called a cutting position. As shown in FIGS. 10 and 11B and 11C, in the half-cut operation, first, the cutting blade 91 is moved from the open position to the vicinity of the cutting position. Specifically, the control unit 200 applies a reverse rotation drive pulse to the cutter motor 63 and performs acceleration control up to a predetermined rotational speed for movement (for example, 2000 pps) (S11), and then at a constant speed at this rotational speed. Control (S12). Then, the number of steps for moving to the vicinity of the cutting position and constant speed control are continued.

  When the cutting blade 91 moves to the vicinity of the cutting position, a half-cut cutting process is performed. The half-cut cutting process adjusts the step-out torque by modulating the drive pulse period, and continues the cutting operation until the cutter motor 63, which is a stepping motor, is in a step-out state (until out-of-step). Done. That is, when the cutting operation is continued, the cutting blade 91 comes into contact with the printing tape T, and the torque of the cutter motor 63 gradually increases, and finally reaches the step-out torque, and the cutter motor 63 enters the step-out state. When the stepping motor enters the step-out state, the torque does not increase any more, so that the torque is stabilized to the step-out torque as long as the cutting operation is continued. On the other hand, the step-out torque can be adjusted by the period of the driving pulse of the stepping motor. That is, by using a stepping motor and continuing the cutting operation until the stepping motor is in a step-out state, the torque of the stepping motor is controlled to a predetermined step-out torque adjusted in advance. Thus, the torque that becomes the cutting force can be controlled to a predetermined value only by controlling the stepping motor (cutter motor 63).

  Specifically, first, the period of the drive pulse is modulated (modulation means), and the cutter motor 63 is decelerated and controlled so as to have a desired rotational speed before the cutting blade 91 moves to the cutting position (S13). . This desired number of rotations is the number of rotations corresponding to the cutting load necessary for the cutting operation of the half cutter 62. Further, the rotational speed is set according to the tape width detected by the detecting unit 204. That is, since the cutting force (cutting load) required at the time of half-cut differs depending on the tape width of the printing tape T, it is applied to the cutter motor 63 based on the detected tape width so as to have a step-out torque corresponding to this. The period of the driving pulse to be changed is varied (modulated) (modulation step) to obtain the rotation speed. Specifically, when the tape width is “24 mm” (see FIG. 11B), the period is modulated so that the rotational speed is 1000 pps, and when the tape width is “12 mm” (FIG. 11C). (See), the period is modulated so that the rotational speed is 1500 pps. Furthermore, when the tape width is “6 mm” and “9 mm”, the rotational speed is 2000 pps. When the tape width is “12 mm” and “18 mm”, the rotational speed is 1500 pps, and the tape width is “24 mm” and “36 mm”. The rotation speed is 1000 pps.

  When the cutting blade 91 reaches the cutting position, the drive pulse is continuously applied until the cutter motor 63 is out of step, and the cutting operation is continued (S14). Then, the step-out state is maintained for 100 steps of the drive pulse (S15). As a result, the print tape T is half-cut, and the half-cut cutting process ends.

  When the cutting process is finished, the cutter motor 63 is stopped (S16). Then, after a certain time (for example, 0.1 seconds) has elapsed, the cutting blade 91 is moved from the closed position to the open position. Specifically, a drive pulse for forward rotation drive is applied to the cutter motor 63, acceleration control is performed up to a predetermined rotational speed for movement (for example, 2000 pps) (S17), and constant speed control is performed at this rotational speed (S18). . Then, if the number of steps to the vicinity of the open position and constant speed control are continued, the cutter motor 63 is controlled to decelerate (S19), and if moved to the open position, the cutter motor 63 is stopped (S20). This completes the half-cut operation.

  According to the configuration as described above, the torque can be adjusted according to the cutting load by modulating (variable) the period of the drive pulse according to the type (tape width) of the printing tape T. Therefore, it is possible to easily and appropriately perform the cutting operation on the introduced plural types of printing tapes T having different cutting loads without using a torque limiter or the like.

  In addition, the tape identification sensor 37 detects the tape width as the type of the printing tape T, and varies the drive pulse period according to the tape width, thereby appropriately cutting the printing tape T having different tape widths. It can be performed.

  Furthermore, since the drive source (stepping motor) can be shared by the half cutter 62 and the full cutter 61, the entire apparatus can be configured simply. The torque control function can also be applied to the full cutter 61, and the full cut operation by the full cutter 61 can be performed stably and accurately.

  In the present embodiment, the drive pulse cycle is variable according to the tape width of the print tape T. However, if the type of the print tape T (particularly, the cutting load varies depending on the difference), However, it is not limited to this. For example, the material of the printing tape T, the thickness of the tape, or the like may be used. Moreover, the structure which varies the period of a drive pulse based on several elements (for example, tape width and the material of the printing tape T) may be sufficient.

  In the present embodiment, the drive pulse at the time of the cutting operation of the half cutter 62 is varied according to the tape type. However, the drive pulse at the time of the cutting operation of the full cutter 61 is changed according to the tape type. A variable configuration may be used.

  Furthermore, in the present embodiment, torque control using the step-out torque is performed in the half-cut cutting operation, but it is not necessary to use the step-out torque as long as the half-cut is performed satisfactorily. That is, torque control may be performed without using the step-out torque.

  Further, in the present embodiment, a half cut that only cuts the recording tape Ta is employed, but a half cut that only cuts the release tape Tb may be employed.

  In the present embodiment, the forward rotational power of the cutter motor 63 is transmitted to the full cutter 61, and the reverse rotational power of the cutter motor 63 is transmitted to the half cutter 62. The configuration may be such that the rotational power is transmitted to the half cutter 62 and the reverse rotational power of the cutter motor 63 is transmitted to the full cutter 61.

  1: Tape printing device, 37: Tape identification sensor, 61: Full cutter, 62: Half cutter, 63: Cutter motor, 64: Cutter power transmission mechanism, 200: Control unit, 202: Printing unit, 203: Cutting unit, T : Printing tape, Ta: Recording tape, Tb: Release tape

Claims (5)

A tape cutting device configured to be capable of individually cutting a plurality of types of processing tapes having different cutting loads,
Cutting means for cutting the processing tape individually;
A stepping motor for operating the cutting means;
Tape type detection means for detecting the type of the plurality of types of processing tapes;
Motor control means for controlling the stepping motor,
Each of the treatment tapes is obtained by sticking a release tape to the main body tape,
The cutting means has a half cutter for cutting the main body tape or the peeling tape,
Said motor control means based on a detection result of the tape type detecting means, as well as have a modulating means for varying the period of the driving pulse applied to the stepping motor, the cut to said stepping motor is out-of A tape cutting device characterized in that the operation of the means is continued . 2. The tape cutting device according to claim 1, wherein the tape type detecting means detects at least tape widths of the plurality of types of processing tapes . A tape cutting device according to claim 1 or 2 ,
A tape printing apparatus comprising: a printing unit that performs printing on the processing tape. A full cutter for cutting the main body tape and the release tape;
4. The tape according to claim 3, further comprising power transmission means for transmitting one of the forward and reverse rotational powers of the stepping motor to the half cutter and transmitting the other rotational power to the full cutter. Printing device. A stepping motor control method for operating a cutting means to individually cut a plurality of types of processing tapes having different loads,
A detection step of detecting a type of the plurality of types of processing tape;
A modulation step of varying a period of a driving pulse applied to the stepping motor based on a detection result in the detection step;
A cutting step of operating the cutting means with a drive pulse of the period varied by the modulation step ,
Each of the treatment tapes is obtained by sticking a release tape to the main body tape,
The cutting means has a half cutter for cutting the main body tape or the peeling tape,
In the cutting step, the operation of the cutting means is continued until the stepping motor is out of step .

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