JP5109610B2 - Paper cutting device and printer provided with the same - Google Patents

Description

The present invention is a continuous paper dated perforations is relates paper cutting device for cutting along the perforations, and a printer including the same at a predetermined cutting position.

Conventionally, as this type of paper cutting device, a device that cuts continuous paper at the position of the perforation by moving a cutter blade located immediately above the perforation perpendicularly to the paper surface of the continuous paper is known (Patent Document). 1). This paper cutting device is provided with a pair of front and rear pads for pressing the continuous paper against the paper feed path before and after the perforation, and a “U” -shaped cutter blade is provided between the pair of pads. . The pair of pads and the cutter blade are respectively connected to a motor-driven link mechanism, and after the pair of pads move down to hold the continuous paper, the cutter blade moves down to cut the continuous paper. ing.
JP 2000-288992 A

  In such a conventional paper cutting device, the cutting operation is performed on the continuous paper by the cutting operation and the returning operation of the cutter blade. For this reason, there is a problem that it takes time for the cutting operation, and paper feeding, that is, continuous paper printing cannot be performed until the cutting operation is completed, and it takes time to perform continuous printing. In particular, when cutting manually, it is difficult to adjust the force when shifting from the cutting operation to the returning operation, and it takes much longer.

An object of the present invention is to provide a paper cutting device capable of easily and quickly cutting continuous paper, and a printer including the paper cutting device.

The paper cutting device of the present invention is a paper cutting device that cuts perforated continuous paper, which is pitch-fed along a paper feed path, along the perforation at a predetermined cutting position. A forward cut operation in which the continuous paper is cut from the forward movement start position in a direction orthogonal to the surface of the continuous paper, and a backward cut operation in which the continuous paper is cut back from the backward movement start position. A cutter blade that performs the cutting operation, a cutter holder that holds both ends of the cutter blade across the paper feed path, a cutting operator that causes the cutter blade to perform one of the forward cutting operation and the backward cutting operation via the cutter holder, and The cut spring that performs the other, the cutter blade that performs the forward cut operation, and the cutter blade that performs the backward cut operation are respectively linked to the upstream vicinity position and the lower side of the perforation feed direction. Comprising a paper clamping mechanism for clamping in a direction perpendicular to the side position near the paper surface, the paper holding mechanism further includes a pair of front holding member which is disposed near the upstream side position of the perforation, downstream of perforations A pair of rear holding members disposed in the vicinity of the side, and a pair of cam plates that support both ends of the pair of front holding members and both ends of the pair of rear holding members across the paper feed path. And a first linear cam mechanism for moving the cam plate forward and backward in the width direction of the continuous paper in accordance with the forward cut operation and the backward cut operation. As the cam plate advances and retreats, the pair of front pinching members and the pair of front pinching members between the end portions of the front pinching members and the end portions of the pair of rear pinching members and the corresponding cam plates are provided. The rear holding member is retracted away from the holding position and the continuous paper. The second translation cam mechanism for moving each between the location is configured, characterized by.

  In this case, it is preferable to further include a paper feed mechanism that pitches the continuous paper and a control unit that controls the paper feed mechanism.

According to this configuration, the cutter blade cuts the continuous paper at the perforated portion by the forward cut operation by the cutting operator and the cut spring, and also cuts the continuous paper at the perforated portion by the backward cut operation. can do. For this reason, immediately after the cutter blade performs the forward movement cutting operation, that is, without returning the cutter blade to the forward movement start position, it is possible to carry out continuous paper feeding (pitch feeding) of the continuous paper. Further, after the paper feeding, the continuous continuous paper can be cut by the backward movement cutting operation. Further, in the forward cut operation and the backward cut operation, the sheet clamping mechanism clamps the upstream vicinity position and the downstream vicinity position in the perforation feed direction. For this reason, even if the cutter blade is not sharply formed, the continuous paper can be cut easily and quickly at the perforated portion. In this way, continuous paper can be cut easily and quickly.
Further, according to this configuration, when the cutter blade is cut through the cutter holder, the pair of cam plates supporting the pair of front holding members and the pair of rear holding members are provided with the first linear cam mechanism. To advance and retreat. At the same time, as the pair of cam plates advance and retreat, the pair of front sandwiching members and the pair of rear sandwiching members sandwich the continuous paper by the second linear cam mechanism. That is, when the cutter blade performs the forward cut operation and the backward cut operation, the pair of front holding members and the pair of rear holding members hold the upstream vicinity position and the downstream vicinity position of the perforation. To do. For this reason, continuous paper can be cut easily and accurately along the perforations.

  In this case, a forward lock mechanism that locks and unlocks the forward cut operation of the cutter blade at the forward movement start position, and a backward lock that locks and unlocks the backward cut operation of the cutter blade at the backward movement start position. It is preferable that the control means further controls the forward lock mechanism and the backward lock mechanism.

  According to this configuration, when the continuous paper is being fed (pitch feed), the forward movement locking mechanism and the backward movement locking mechanism are driven to lock the forward movement cutting operation and the backward movement cutting operation. The cutting operation of the cutter blade is not erroneously performed, and it is possible to effectively prevent continuous paper cutting and continuous paper jamming at portions other than the perforations.

  In this case, the first detection means for detecting that the cutter blade is in the forward movement start position and the second detection means for detecting that the cutter blade is in the backward movement start position are further provided, and the control means includes the first detection means. It is preferable to control the paper feed mechanism based on the detection result of the detection means and the detection result of the second detection means.

  According to this configuration, the control unit can control the paper feed mechanism based on the detection result of the first detection unit and the detection result of the second detection unit, and can also move the forward lock mechanism and the reverse lock mechanism. It can be locked and unlocked, and operability can be improved.

  In this case, it is preferable that the control unit prohibits pitch feeding of the continuous paper when both the first detection unit and the second detection unit are in the non-detection state.

  According to this configuration, since the forward lock mechanism and the backward lock mechanism do not lock the cutter blade, the continuous paper pitch feed is prohibited. Cutting and jamming of continuous paper can be effectively prevented.

  In these cases, the control means unlocks the forward lock mechanism when the first detection means is in the detection state and the perforation reaches the cutting position, and the second detection means is in the detection state and the sewing machine When the eye reaches the cutting position, it is preferable that the backward lock mechanism is unlocked.

  According to this configuration, the forward cut operation and the backward cut operation are possible only when the perforation has reached the cutting position. For this reason, cutting of continuous paper and jamming of continuous paper at portions other than the perforations can be effectively prevented.

  In this case, at least one of each front holding member and each rear holding member is configured by a plate-like elastic body whose side ends are in contact with the continuous paper, and when the continuous paper is held, the contact side becomes the cutting position. It is preferable to deform in a direction away from the head.

  According to this configuration, the front holding member and / or the rear holding member holding the continuous paper from both the front and back sides is deformed when the continuous paper is held, so that tension is applied to the perforated portion of the continuous paper. Can be granted. For this reason, the continuous paper can be easily cut along the perforation only by applying the cutter blade to a part of the perforation. Therefore, continuous paper can be cut with a small cutting resistance.

  On the other hand, it is preferable that the cutter blade has a double-edged edge.

  According to this configuration, it is possible to cause the cutter blade to perform the forward cut operation and the backward cut operation without changing the posture.

  Moreover, it is preferable that the cutter blade has a saw blade-like cutting edge and is cut obliquely with respect to the paper surface of the continuous paper.

  According to these configurations, the cutting force of the cutter blade can be concentrated on a part of the perforation, and the continuous paper can be easily cut with a small force. Further, the component force applied in the width direction of the continuous paper can be suppressed even if the blade is cut obliquely into the paper surface by the saw blade-shaped blade edge.

  A printer according to the present invention includes the above-described paper cutting device and a printing device that is disposed upstream of the paper cutting device in the pitch feed direction and performs printing on continuous paper.

  According to this configuration, it is possible to obtain a printer capable of cutting and discharging a printed portion of continuous paper by manual operation.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of a paper cutting device and a printer including the paper cutting device according to the invention will be described with reference to the accompanying drawings. This printer is a so-called dot impact printer. While feeding continuous paper composed of fanfold paper (folded continuous paper), printing is performed using the dot impact method, and the printed part is separated at the perforated part. Are discharged.

  As shown in FIG. 1, the printer 1 prints on a paper feed path P that extends linearly from the paper feed port 11 toward the paper discharge port 12 and the continuous paper 4 that faces the paper feed path P and is fed. The printing mechanism 3 to be performed, the paper feeding mechanism 5 to face the paper feeding path P, and feed the continuous paper 4 from the paper feeding port 11 to the paper discharging port 12 in units of the perforation 10 (see FIG. 6). A paper cutting mechanism 2 (paper cutting device) that faces the paper feed path P between the mechanism 3 and the paper discharge port 12 and cuts the continuous paper 4 fed by the paper feed mechanism 5 at the perforation 10 portion; A control unit 100 (control means: see FIG. 2) for controlling each mechanism and a device case 101 for housing these constituent devices are provided.

  The continuous paper 4 supplied from the paper feed port 11 by the paper feed mechanism 5 is pitch-fed to the paper discharge port 12 side along the paper feed path P, and the printing mechanism 3 performs stamping on the area between the perforations 10. Printing is performed, and when the perforation 10 reaches the cutting position C, the feeding is stopped. The paper cutting mechanism 2 cuts the perforation 10 and discharges the paper one by one from the paper discharge port 12. The continuous paper 4 is, for example, a slip sheet, and the contents of the slip are printed by the printer 1, and printed slips are created one by one.

  The printing mechanism 3 includes a recording head 3a mounted with a plurality of recording wires, a platen 3b facing the recording head 3a across the paper feed path P, and a recording head 3a mounted on a carriage (not shown). And a head moving mechanism 3c that moves in the direction (sub-scanning). Printing (printing) on the continuous paper 4 is performed by driving the recording head 3a in accordance with the pitch feeding of the continuous paper 4 by the paper feeding mechanism 5 and the movement of the recording head 3a by the head moving mechanism 3c. The printing mechanism 3 excluding the platen 3b and the driven roller of the feed roller 8 described later are attached to the apparatus case 101.

  The paper feed mechanism 5 includes a track unit 6 disposed on the upstream side (paper feed direction) of the printing mechanism 3, and a feed roller 8 and a paper discharge roller 9 provided on the downstream side (paper feed direction) of the printing mechanism 3. And is composed of. The track unit 6 feeds the continuous paper 4 by belt running in which protrusions are locked in feeding holes provided at both ends in the width direction of the continuous paper 4. Each of the feed roller 8 and the paper discharge roller 9 is constituted by a nip roller (grip roller) composed of a drive roller and a driven roller. The feed roller 8 is disposed on the upstream side of the paper cutting mechanism 2 and is a paper discharge roller. Reference numeral 9 denotes a downstream side of the paper cutting mechanism 2 and is disposed in the vicinity of the paper discharge port 12.

  At the time of print feeding for printing on the continuous paper 4, the track unit 6, the feed roller 8, and the paper discharge roller 9 are driven in synchronism, and after the printing of the area between the perforations 10 is completed, the feed is further sent to the perforation 10 portion. When the cutting position C is reached, the feeding is temporarily stopped. Although not shown in the drawing, a sensor for detecting the continuous paper 4 is provided in the vicinity of the feed roller 8, and a so-called print start position is detected by this sensor and a cueing operation by the paper feed mechanism 5 is performed. When the perforation 10 reaches the cutting position C, the continuous paper 4 is stopped. When the perforation 10 reaches the cutting position C and the feeding of the continuous paper 4 is stopped, the continuous paper 4 is cut (manually) by the paper cutting mechanism 2. When the cutting is completed, the paper discharge roller 9 is rotated in the forward direction, and the printed portion (one sheet) of the continuous paper 4 is fed out from the paper discharge port 12, and then the track unit 6 and the feed roller 8 are reversed. Rotates and feeds the continuous paper 4 back to the cue position.

  As shown in FIGS. 1 to 4, the paper cutting mechanism 2 faces a cutting position C and moves vertically in a direction orthogonal to the paper surface of the continuous paper 4 to perform a cutting operation, and a paper feed mechanism A cutter holder 15 composed of a pair of holder bars 15a, 15a that holds both ends of the cutter blade 23 across the path P, and a manual operation unit 14 that vertically hangs the cutter holder 15 and causes the cutter holder 15 to perform a cutting operation downward. (Cut operation element), a pair of cut springs 44, 44 for cutting the cutter blade 23 upward, and a position near and upstream of the perforation 10 in the feed direction in conjunction with the cutter blade 23 that performs the cutting operation And a paper clamping mechanism 16 that clamps the side vicinity position from a direction orthogonal to the paper surface.

  The manual operation unit 14 is located behind the opening / closing lid 7 and constitutes a part of the apparatus case 101, and is configured to be movable up and down by a plurality of lifting guides 22 provided on the cutter frame 13. The cutter holder 15 has a pair of holder bars 15 a and 15 a disposed across the paper feed path P, and the pair of holder bars 15 a and 15 a is suspended inside the manual operation unit 14. The pair of holder bars 15a and 15a each extend in the vertical direction, and the cutter blade 23 is fixed to both lower ends of the holder bars 15a and 15a with a slight inclination with respect to the horizontal plane.

  The cutter blade 23 is a double-edged blade having cutting edges formed on the top and bottom, and extends so as to cross the continuous paper 4. The length of the cutter blade 23 is made of a plate material made of stainless steel, steel, or resin, which is formed sufficiently longer than the width of the continuous paper 4 and has both blade edges formed in a saw blade shape. In this case, the blade edges need only be as sharp as a paper knife, and the continuous paper 4 can be cut without the cuts coming off the perforations. Further, since the cutter blade 23 cuts obliquely into the continuous paper 4 with a tension to be described later, the continuous paper 4 can be easily cut with a small force.

  On the other hand, a pair of cutter springs 44, 44 are provided on the bottom of the cutter frame 13 located on the extension of the pair of holder bars 15 a, 15 a. Each of the cutter springs 44 and 44 is formed of a compression spring. When the pair of holder bars 15a and 15a are moved downward (forward movement) together with the cutter blade 23 from the manual operation unit 14, the cutter springs 44 and 44 are pushed by the pair of holder bars 15a and 15a. Then, the pair of holder bars 15a and 15a are moved up (returned) to their original positions together with the cutter blade 23 (see FIG. 2). Each cutter spring 44 may be constituted by a tension spring provided on the upper portion of the cutter frame 13.

  As described above, the cutter blade 23 is a double-edged blade, and is moved downward from the upper moving end position (forward movement start position) by the downward movement of the manual operation unit 14 to cut the continuous paper 4 from above. An operation (forward cut operation), and an upper movement cut operation (reverse cut operation) in which the cut paper 44 moves upward from the lower movement end position (reverse movement start position) to cut the continuous paper 4 from the lower side. , Is supposed to do. In the present embodiment, the lower moving cut operation when the continuous paper 4 is not present at the cutting position C is referred to as a lower moving air cut operation, and the upper moving cut operation is referred to as an upper moving air cut operation.

  At the upper part of the cutter frame 13, a lower movement locking mechanism 40 for locking / unlocking the lower movement cutting operation of the cutter blade 23 at the upper movement end position, and a first detection mechanism for detecting that the cutter blade 23 is at the lower movement end position. 1 detection sensor 42 (first detection means). Similarly, at the lower part of the cutter frame 13, an upper moving lock mechanism 41 that locks / unlocks the upper cutting operation of the cutter blade 23 at the lower moving end position, and that the cutter blade 23 is at the lower moving end position. A second detection sensor 43 (second detection means) for detection is disposed. The downward movement lock mechanism 40, the upward movement lock mechanism 41, the first detection sensor 42, and the second detection sensor 43 are connected to the control unit 100.

  Although not shown in detail, the downward movement locking mechanism 40 and the upward movement locking mechanism 41 are, for example, a claw holder provided on the cutter blade 23, a lock claw provided on the cutter frame 13 and engaged with the claw holder, and a lock claw. And a solenoid to be returned and a return spring. By energizing the solenoid, the lock claw is locked to the claw receiver and the cutter blade 23 is locked. Further, the solenoid is demagnetized and the cutter blade 23 is unlocked by releasing the lock claw from the claw holder by the return spring. When the cutter blade 23 is made of steel, the lower movement lock mechanism 40 and the upper movement lock mechanism 41 may be made of electromagnets. Moreover, the 1st detection sensor 42 and the 2nd detection sensor 43 are comprised by the micro switch (limit switch) and the optical sensor (photo interrupter), for example.

  The sheet clamping mechanism 16 includes a pair of upper and lower front clamping blades (front clamping members) 17f and 17f disposed in the vicinity of the upstream side of the perforation 10, and upper and lower positions disposed in the vicinity of the downstream side of the perforation 10. A pair of rear sandwiching blades (rear sandwiching members) 17r, 17r and both ends of the pair of front sandwiching blades 17f, 17f and both ends of the pair of rear sandwiching blades 17r, 17r across the paper feed path P It has a pair of cam plates 32 and 32 to support. Further, between the cutter holder 15 and each cam plate 32, there is a first linear cam mechanism 25 that moves the cam plate 32 forward and backward in the width direction of the continuous paper 4 in accordance with the downward movement cut operation and the upward movement cut operation. It is configured (see FIG. 2). Further, the cam plate 32 moves forward and backward between the end portions of the pair of front holding blades 17f and 17f and the end portions of the pair of rear holding blades 17r and 17r and the corresponding cam plate 32. Along with this, a second linear cam mechanism 26 that moves the pair of front holding blades 17f and 17f and the pair of rear holding blades 17r and 17r between the holding position and the retracted position away from the continuous paper 4, respectively. (See FIG. 2).

  Each front sandwiching blade 17f and each rear sandwiching blade 17r have the same structure, and are made of a belt-like hard rubber or the like that is sufficiently longer than the width of the continuous paper 4. Each front holding blade 17f and each rear holding blade 17r are integrally formed by a blade body 19 that holds the continuous paper 4 and a pair of thick portions 20 and 20 that are connected to upper half portions at both ends of the blade body 19. (See FIG. 5B). Each thick portion 20 is provided with an engaging pin 31 with a head that constitutes a part of the second linear cam mechanism 26, and each front pinch is interposed via the engaging pin 31. The blade 17f and the rear nipping blades 17r are horizontally supported by the cam plates 32, 32, and are translated in the vertical direction between the nipping position and the retracted position by the second linear cam mechanism 26. It has become.

  Further, the blade main bodies 19 of the pair of front holding blades 17f and 17f are disposed with the lower side inclined to the upstream side. Similarly, the pair of rear holding blades 17r and 17r blade main body 19 has the lower side downstream. It is inclined to the side. That is, the four blade main bodies 19 are arranged so as to form four sides of the rhombus when viewed from the side (see FIG. 1). As a result, when the pair of front holding blades 17f, 17f and the pair of rear holding blades 17r, 17r move from the retracted position to the holding position, the pair of front holding blades 17f, 17f (the blade body 19) The vicinity of the upstream side of the perforation 10 is sandwiched, and the pair of rear clamping blades 17r, 17r (the blade body 19) sandwich the vicinity of the downstream side of the perforation 10 (see FIG. 3). Further, since the pair of front holding blades 17f and 17f are inclined to the upstream side, the continuous paper 4 is pulled upstream by the component force of the holding force, and at the same time, the pair of rear holding blades 17r and 17r are connected to the downstream side. Since it is inclined to the side, the continuous paper 4 is pulled downstream by the component force of the holding force. As a result, tension is applied in the extending direction of the continuous paper 4, and the cutter blade 23 is cut into the perforation 10 in this state. It is preferable that the pair of front holding blades 17f and 17f and the pair of rear holding blades 17r and 17r be configured to bend slightly after holding the continuous paper 4.

  As shown in FIGS. 5 and 6, the cam plate 32 is a pair of guide members that are formed in a substantially isosceles triangle shape by bending the plate into a “U” cross section and viewed from the side, and fixed to the cutter frame 13 at the top and bottom. 34 and 34 are supported so as to freely advance and retract. The cam plate 32 is formed with a pair of slanted cam holes 35 and 35 having a long hole shape along the oblique side (actually, there are two pairs). The engagement pin 31 of the blade 17f and each rear holding blade 17r is engaged in the retaining state. That is, each of the inclined cam holes 35 (cams) and the engaging pins 31 (cam followers) constitute the second linear cam mechanism 26 (actually there are two sets). When the cam plate 32 moves forward, the cam action of each inclined cam hole 35 and the engagement pin 31 moves each front holding blade 17f and each rear holding blade 17r to the retracted position, and when the cam plate 32 moves backward, By the cam action of each inclined cam hole 35 and the engagement pin 31, each front holding blade 17f and each rear holding blade 17r move to the holding position. A positive spring 33 is disposed on the back side of the cam plate 32 in order to positively operate the second linear cam mechanism 26.

  On the other hand, the lower end of each holder bar 15a is provided with a cam projection 24 having a trapezoidal shape on the outside thereof (see FIG. 7), and inclined cams 24a and 24b are formed on the two oblique sides of the cam projection 24. A flat vertical cam 24c is formed on the side. The cam plate 32 has a pair of cam inclined surfaces 32a and 32b on the two oblique sides corresponding to the inclined cams 24a and 24b and the vertical cam 24c, and a cam plane between the pair of cam inclined surfaces 32a and 32b. 32c is configured. That is, the first linear cam mechanism 25 is configured by the pair of inclined cams 24a and 24b and the vertical cam 24c (cam), and the pair of cam inclined surfaces 32a and 32b and the cam plane 32c (cam follower). The positive spring 33 also positively operates the first linear cam mechanism 25.

  When the cutter holder 15 moves downward from the upper moving end position (down moving cut operation), the lower inclined cam 24b and the upper cam inclined surface 32a come into contact with each other, and the cam plate 32 moves backward due to the cam action of both. By the retraction of the cam plate 32, the front holding blades 17f and the rear holding blades 17r move from the retracted position to the holding position via the second linear cam mechanism 26. Subsequently, the vertical cam 24c comes into sliding contact with the cam plane 32c, the cam plate 32 maintains the retracted position, and the front holding blades 17f and the rear holding blades 17r maintain the holding positions (state shown in FIG. 3). . When the cutter holder 15 further moves downward, the upper inclined cam 24a and the lower cam inclined surface 32b come into contact with each other, and the cam plate 32 advances by the cam action of both. As the cam plate 32 moves forward, the front holding blades 17f and the rear holding blades 17r move from the holding position to the retracted position via the second linear cam mechanism 26 (state shown in FIG. 4).

  Similarly, when the cutter holder 15 moves upward (upward moving cutting operation) from the lower moving end position, the cam plate 32 moves backward by the cam action of the upper inclined cam 24a and the lower cam inclined surface 32b, and each front pinch is held. The blade 17f and each rear holding blade 17r move from the retracted position to the holding position. Subsequently, the vertical cam 24c comes into sliding contact with the cam plane 32c, and the front holding blades 17f and the rear holding blades 17r maintain the holding positions. Further, when the cutter holder 15 moves upward, the cam plate 32 moves forward by the cam action of the lower inclined cam 24b and the upper cam inclined surface 32a, and each front clamping blade 17f and each rear clamping blade 17r move. It moves from the holding position to the retracted position (state shown in FIG. 2).

  Then, in the downward movement of the cutter holder 15, that is, in the downward movement cutting operation of the cutter blade 23, the cutter blade for the continuous paper 4 in a state where the front holding blades 17 f and the rear holding blades 17 r maintain the holding position. Cutting from the upper side of 23 is performed. Similarly, in the upward movement of the cutter holder 15, that is, in the upward movement cutting operation of the cutter blade 23, the cutter for the continuous paper 4 in a state where the front holding blades 17f and the rear holding blades 17r maintain the holding positions. Cutting from the lower side of the blade 23 is performed.

  Next, the control operation of the control unit 100 related to the paper cutting mechanism 2 will be described. Based on the on / off operation of the first detection sensor 42 and the second detection sensor 43, the control unit 100 determines whether the cutter blade 23 is being cut or stopped. That is, when the cutter blade 23 is at the upper moving end position, the first detection sensor 42 is turned on (detected), and the control unit 100 restrains (locks) the cutter blade 23 by the lower movement locking mechanism 40, and the printing mechanism 3. And printing by the paper feed mechanism 5 (print feed of the continuous paper 4) is allowed. Similarly, when the cutter blade 23 is located at the lower moving end position, the second detection sensor 43 is turned on (detected), and the control unit 100 restrains (locks) the cutter blade 23 with the upper moving lock mechanism 41 to print the printing mechanism. 3 and the paper feed mechanism 5 (print feed of the continuous paper 4) is allowed.

  On the other hand, when the cutter blade 23 is in the middle between the upper moving end position and the lower moving end position, the first detection sensor 42 and the second detection sensor 43 are turned off (non-detection), and the control unit 100 controls the printing mechanism 3 and Printing by the paper feeding mechanism 5 (print feeding of the continuous paper 4) is canceled. Thereby, cutting | disconnection and jamming in parts other than the perforation 10 of the continuous paper 4 are prevented.

  It should be noted that when the perforation 10 reaches the cutting position by printing and subsequent paper feed, it is preferable to unlock the downward movement locking mechanism 40 or the upward movement locking mechanism 41 and notify that the cutting is possible. Similarly, during printing, it is preferable to lock the down motion lock mechanism 40 or the up motion lock mechanism 41 to notify that cutting is impossible.

  Next, various control methods of the paper cutting device 2 will be described with reference to FIGS. FIG. 8 shows processing steps for printing and cutting operations using both manual operation and automatic operation. First, the printer 1 waits for reception of print data from a personal computer (not shown) or the like (step S1). When the print command is received after receiving the print data (step S2), the printing mechanism 3 and the paper feed mechanism 5 perform printing based on the print data on the continuous paper 4 (step S3). After the printing is completed, the perforation 10 is sent to the cutting position C just below the cutter blade 23 by a paper feeding operation (step S4) for sending the continuous paper 4 to the cutting position C. When the continuous paper 4 reaches the cutting position C, it is notified that the perforation 10 is located directly below the cutter blade 23 (step S4 ').

  By this paper feeding operation, the continuous paper 4 is sent to the cutting position C in which the perforation 10 is directly below the cutter blade 23. When the perforation 10 of the continuous paper 4 is sent to the cutting position C just below the cutter blade 23, the restraint of the cutter blade 23 by the downward movement lock mechanism 40 is released (unlocked). When the cutter blade 23 is unlocked by the downward movement lock mechanism 40, the cutter blade 23 can perform a downward movement cut operation (step S5).

  Here, the user manually moves down the manual operation unit 14. When the manual operation unit 14 moves downward, the cutter blade 23 cuts the perforation 10 after the front and rear holding blades 17f and 17r pinch the front and rear positions of the perforation 10 (step S6: manual cutting step). ). When the cutter blade 23 moves downward to the position of the upward movement lock mechanism 41 against the cut spring 44, the second detection sensor 43 is turned on, and the upward movement lock mechanism 41 locks the cutter blade 23 (step S8: up) The locking process of the dynamic locking mechanism). In the locking process of the upper movement locking mechanism 41, it is determined whether or not the cutter blade 23 is in the lower movement end position based on whether or not the second detection sensor 43 is on (step S7).

  Subsequently, the printer 1 waits for data reception as to whether or not there is print data (step S9). When there is a print instruction for the continuous paper 4 (step S10), the printing unit 3 prints on the continuous paper 4 (step S10). S11 and S12). As described above, in this operation, after the continuous paper 4 is pulled back once, printing is performed by driving the printing mechanism 3 while feeding the continuous paper 4 (intermittent feed), and then the perforation 10 of the continuous paper 4 is the cutter blade. The paper is fed so as to be positioned just above the position 23 (cutting position C).

  When the perforation 10 reaches the cutting position C directly above the cutter blade 23 by the paper feeding operation, the process proceeds to an automatic cutting process. In the automatic cutting process, the cutter lock of the upward movement locking mechanism 41 is released (step S13), and the upward movement cutting operation of the cutter blade 23 by the cutter spring 44 is performed (step S14). Subsequently, when the first detection sensor 42 detects that the cutter blade 23 has reached the upper moving end position (step S15), the lower blade locking mechanism 40 locks the cutter blade 23 (step S16). When the first detection sensor 42 does not detect the cutter blade 23 within a predetermined time, error processing is performed. In this way, one cutting cycle ends (step S17).

  FIG. 9 shows a processing step of the cutting operation only by automatic operation. In this control method, first, a movable blank cutting operation for moving the cutter blade 23 to the lower moving end position by manual operation is permitted (step S20). In this lower moving air cut operation, the cutter blade 23 is detected by the second detection sensor 43 (step S21), and the cutter blade 23 is locked by the upper moving lock mechanism 41 (step S22). Here, the printer 1 waits for reception of print data from the personal computer (step S23). By this control, it is possible to prevent the printer from inadvertently operating during the sheet passing / cutting operation, and it is possible to prevent a paper jam or the like.

  When the print data is received from the personal computer (step S24), printing is performed (steps S25 and S26). When the perforation 10 of the continuous paper 4 reaches just above the cutter blade 23 by the paper feeding operation, the automatic cutting process is started. In this automatic cutting process, the cutter lock of the cutter blade 23 by the upward movement lock mechanism 41 is released and unlocked (step S27). When the cutter blade 23 is unlocked, the cutter blade 23 is cut upward by the cut spring 44, and the perforation 10 is cut (step S28).

  When the first detection sensor 42 detects the cutter blade 23 (step S29), the downward movement lock mechanism 40 locks the cutter blade 23 (step S30). Thus, one cutting cycle is completed (step S31).

  FIG. 10 shows a process step of the cutting operation only by manual operation. In this control method, first, the printer 1 waits for reception of print data (step S40). When print data is received from the personal computer (step S41), printing is performed (steps S42 and S43). Here, when the perforation 10 of the continuous paper 4 reaches the cutting position C just below the cutter blade 23 by the paper feeding operation accompanying printing, it is notified that the perforation 10 is located directly below the cutter blade 23 (step S44). ).

  Next, the cutter lock of the cutter blade 23 by the downward movement lock mechanism 40 and the upward movement lock mechanism 41 is respectively released (step S45). The user lowers the cutter blade 23 by manual operation and cuts the portion of the perforation 10 (step S46).

  In this downward movement cutting operation, since the upward movement lock mechanism 41 is in an unlocked state, when the user releases the manual operation unit 14 after cutting the continuous paper 4, the cutter blade 23 is moved upward by the cut spring 44. Empty cut operation. When the first detection sensor 42 detects the cutter blade 23 (step S47), the cutter blade 23 is locked by the downward movement lock mechanism 40 (step S48). Thus, one cutting cycle is completed (step S49).

  As described above, in this paper cutting device 2, the perforation 10 is cut by pressing the cutter blade 23 of both edges obliquely while pulling the perforation 10 of the continuous paper 4 left and right, so that the blade is sharp. Therefore, it is safe and convenient to use, and it is possible to easily respond to frequent cut requests for the continuous paper 4 that is assumed when a slip is issued.

  In the above embodiment, the flat front / rear holding blades 17f and 17r are used as means for applying tension when the continuous paper 4 is cut. It is also possible to serve as both. In addition, although the continuous paper 4 is installed in the printer 1 that moves horizontally, the continuous paper 4 can be used as a winding type printer or installed in a printer of various printing technologies.

1 is a schematic diagram illustrating a schematic configuration of a printer according to an embodiment. FIG. 6 is a schematic front view of a state in which the cutter blade of the paper cutting device is in the upper moving end position. It is a front view schematic diagram of the cutting state in a paper cutting device. It is a front view schematic diagram of the state which the cutter blade of a paper cutting device exists in a lower moving end position. FIG. 6 is an enlarged schematic diagram illustrating an end configuration of a paper nipping mechanism. It is an enlarged schematic diagram which shows the planar arrangement | positioning state of a pinching blade. It is a schematic diagram which shows the planar arrangement structure of a manual operation part and a cutter holder. It is a flowchart of continuous paper cutting by manual operation and automatic operation. It is a flowchart of the continuous paper cut by automatic operation. It is a flowchart of continuous paper cutting by manual operation.

Explanation of symbols

  1: printer, 2: paper cutting device, 3: printing mechanism, 4: continuous paper, 5: paper feeding mechanism, 14: manual operation unit, 16: paper clamping mechanism, 17: clamping blade, 23: cutter blade, 25: 1st linear motion cam mechanism, 26: 2nd linear motion cam mechanism, 32: Cam plate, 40: Down motion lock mechanism, 41: Up motion lock mechanism, 42: 1st detection sensor, 43: 2nd detection sensor 44: Cut spring

Claims (10)

A paper cutting device for cutting perforated continuous paper that is pitch-fed along a paper feed path along a perforation at a predetermined cutting position,
A forward cut operation that faces the cutting position and moves in a direction perpendicular to the paper surface of the continuous paper from the forward movement start position to cut the continuous paper, and a backward movement from the reverse movement start position to return the continuous paper. A cutter blade that performs a reverse cut operation to cut
A cutter holder that holds both ends of the cutter blade across the paper feed path;
A cutting operator for causing the cutter blade to perform one of the forward movement cutting operation and the backward movement cutting operation, and a cut spring for performing the other, via the cutter holder;
Interlocking with the cutter blade that performs the forward cut operation and the cutter blade that performs the reverse cut operation, the upstream vicinity position and the downstream vicinity position of the perforation feed direction are clamped from the direction orthogonal to the paper surface. A paper clamping mechanism ,
The paper pinching mechanism further includes:
A pair of front holding members disposed in the vicinity of the upstream side of the perforation;
A pair of rear holding members disposed in the vicinity of the downstream side of the perforation;
A pair of cam plates that support both ends of the pair of front holding members and both ends of the pair of rear holding members across the paper feed path;
A first linear cam mechanism is provided between the cutter holder and each of the cam plates to move the cam plate forward and backward in the width direction of the continuous paper in accordance with the forward cut operation and the backward cut operation. And
Between the end portions of the pair of front holding members and the end portions of the pair of rear holding members, and the corresponding cam plates, the pair of front holding members move forward and backward. A second linear cam mechanism configured to move the sandwiching member and the pair of rear sandwiching members between a sandwiching position and a retracted position away from the continuous paper, respectively;
A paper cutting device characterized by the above. A paper feed mechanism for pitch-feeding the continuous paper;
The paper cutting apparatus according to claim 1, further comprising a control unit that controls the paper feeding mechanism. A forward lock mechanism for locking and unlocking the forward cut operation of the cutter blade at the forward movement start position;
A reverse lock mechanism for locking and unlocking the reverse cut operation of the cutter blade at the reverse start position;
The sheet cutting device according to claim 2, wherein the control unit further controls the forward lock mechanism and the backward lock mechanism. First detecting means for detecting that the cutter blade is in the forward movement start position;
A second detection means for detecting that the cutter blade is in the backward movement start position;
The paper cutting device according to claim 2 or 3, wherein the control means controls the paper feed mechanism based on a detection result of the first detection means and a detection result of the second detection means.   5. The sheet cutting according to claim 4, wherein the control unit prohibits pitch feeding of the continuous sheet when both the first detection unit and the second detection unit are in a non-detection state. apparatus. The control means unlocks the forward lock mechanism when the first detection means is in a detection state and the perforation reaches the cutting position,
6. The paper cutting device according to claim 4, wherein when the second detection means is in a detection state and the perforation reaches the cutting position, the backward lock mechanism is unlocked. . At least one of the front holding members and the rear holding members is composed of a plate-like elastic body whose side ends are in contact with the continuous paper, and the contact side is cut when the continuous paper is held. The paper cutting device according to claim 1 , wherein the paper cutting device is deformed in a direction away from the position. The paper cutter according to any one of claims 1 to 7 , wherein the cutter blade has a cutting edge. The cutter blade has a serrated edge, the paper cutting device according to any one of claims 1 to 8, characterized in that cut oblique to the plane of the continuous paper. A paper cutting device according to any one of claims 1 to 9 ,
A printer comprising: a printing device disposed on an upstream side in a pitch feeding direction of the paper cutting device and printing on the continuous paper.

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