JP2011236005A - Recording medium machining device, and image recording device including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording medium machining device which performs both of forming lateral perforation on a recording medium and cutting the recording medium, and can change relative positional relationship between a lateral perforation position and a cutting position.SOLUTION: The recording medium machining device includes a first roller arranged to be rotatable and a second roller arranged to be opposed to the first roller, wherein a continuous recording medium is conveyed while passing through a path between the first roller and the second roller. The first roller includes a sheet cutting blade that cyclically cuts the continuous recording medium in a sheet state. The second roller includes a lateral perforation forming blade that forms the lateral perforation in a direction orthogonal to the conveying direction of the continuous recording medium. The recording medium machining device has a means that varies the relative phase of rotation of the sheet cutting blade and the lateral perforation forming blade.

Description

  The present invention relates to a recording medium processing apparatus that forms or cuts a horizontal perforation on a continuous recording medium, and an image recording apparatus including the recording medium processing apparatus.

  In general, a horizontal perforation that forms a perforation in a direction perpendicular to the conveyance direction of the recording medium on a long recording medium such as recording paper or recording film to be conveyed, and a conveyance direction An image recording apparatus having a sheet cutting blade for cutting a recording medium in a direction perpendicular to the recording medium is known.

  For example, Patent Document 1 discloses an image recording apparatus having a horizontal perforation device provided with a horizontal sewing cylinder and a receiving cylinder arranged to face the horizontal sewing cylinder. A sewing machine blade for forming a horizontal perforation on the web (recording medium) and a cutting blade for cutting the web are attached to the horizontal sewing cylinder. The receiving cylinder is provided with a sewing blade receiving portion and a cutting blade receiving portion for receiving the sewing blade and the cutting blade. The horizontal sewing machine cylinder and the receiving cylinder are rotationally driven synchronously so that the sewing machine blade and the cutting blade of the horizontal sewing machine cylinder engage with the sewing machine blade receiving part and the cutting blade receiving part of the receiving cylinder, respectively. A desired horizontal perforation can be formed in the web passing through the conveyance path between the horizontal sewing cylinder and the receiving cylinder, or the web can be cut.

JP 2009-23766 A

  In the horizontal perforation device of Patent Document 1 described above, the cutting blade is provided for the purpose of cutting the recording medium when trouble such as a paper jam occurs, and thus is selectively brought into contact with the recording medium. By bringing the cutting blade into contact with the recording medium every time the horizontal perforation cylinder rotates, the recording medium on which the horizontal perforations are formed can be cut into a uniform cut medium.

  However, in the horizontal perforation device of Patent Document 1, the cutting blade and the sewing blade are attached to the same (one) horizontal sewing drum. That is, the relative positional relationship between the cutting blade and the sewing blade is fixed. For this reason, the relative positional relationship between the position at which the horizontal perforation is formed on the recording medium to be conveyed (lateral perforation position) and the position at which the recording medium on which the horizontal perforation is formed is cut (cutting position). Is also fixed and cannot be changed.

  Therefore, the present invention is a recording medium processing which can change the relative positional relationship between the position of the horizontal perforation and the cutting position by combining the formation of the horizontal perforation on the recording medium and the cutting of the recording medium. An object is to provide an apparatus and an image recording apparatus including the apparatus.

  An embodiment according to the present invention includes a first roller disposed rotatably and a second roller disposed opposite to the first roller, wherein the first roller, the second roller, In the recording medium processing apparatus in which the continuous recording medium is conveyed through a path between the first roller, the first roller is provided with a sheet cutting blade that periodically connects the continuous recording medium in a sheet shape, The second roller is provided with a horizontal sewing blade that forms a horizontal perforation in a direction perpendicular to the conveyance direction of the continuous recording medium, and the relative phase of rotation of the sheet cutting blade and the horizontal sewing blade is variable. The recording medium processing apparatus includes a phasing means for determining the recording medium.

  An embodiment according to the present invention includes a feeding unit that feeds a continuous recording medium, a printer unit that records an image on the recording medium fed from the feeding unit, and the recording medium processing apparatus. And an image recording apparatus.

  According to the present invention, the recording medium processing which can change the relative positional relationship between the horizontal perforation position and the cutting position by combining the formation of the horizontal perforation on the recording medium and the cutting of the recording medium by one unit. An apparatus and an image recording apparatus including the apparatus can be provided.

FIG. 1 is a front view schematically showing an image recording apparatus equipped with a recording medium processing apparatus. FIG. 2 is a perspective view showing the recording medium processing apparatus of the first embodiment. FIG. 3 is a perspective view schematically showing the position detection mechanism. FIG. 4 is a side view schematically showing the sheet cutting blade and the position detection mechanism. FIG. 5 is a flowchart showing the operation of the image recording apparatus equipped with the recording medium processing apparatus of the first embodiment. FIG. 6 is a flowchart showing a phase matching operation for setting the first roller and the second roller to the initial positions. FIG. 7A is a diagram illustrating the start positions of the first roller and the second roller when it is determined that the horizontal perforation is unnecessary, and FIG. 7B and FIG. It is a figure which shows the starting position of the 1st roller and 2nd roller when it is judged that a perforation is required. FIG. 8A is a diagram illustrating a state in which the first roller and the second roller are rotated from the start position illustrated in FIG. 7A and the sheet cutting blade is in contact with the outer peripheral surface of the second roller. FIG. 8B is a view showing a state in which the horizontal sewing machine blade is in contact with the first roller, and FIG. 8C is a view showing the formed cut medium. 9A is a diagram illustrating a state in which the first roller and the second roller are rotated from the start position illustrated in FIG. 7B and the sheet cutting blade is in contact with the second roller. FIG. 9B is a view showing a state in which the horizontal sewing machine blade is in contact with the first roller, and FIG. 9C is a view showing the formed cut medium. FIG. 10A is a diagram illustrating a state in which the first roller and the second roller are rotated from the start position illustrated in FIG. 7C and the sheet cutting blade is in contact with the second roller. FIG. 10B is a view showing a state in which the horizontal sewing machine blade is in contact with the first roller, and FIG. 10C is a view showing the formed cut medium. FIG. 11 is a perspective view showing a recording medium processing apparatus according to a modification of the first embodiment. FIG. 12 is a perspective view showing a recording medium processing apparatus according to the second embodiment. FIG. 13A is a view showing a state in which the horizontal sewing blade protrudes from the second roller surface by the horizontal sewing blade retracting mechanism, and FIG. 13B is a view showing a state in which the horizontal sewing blade is retracted from the second roller surface. is there. FIG. 14 is a flowchart showing the operation of the image recording apparatus equipped with the recording medium processing apparatus of the second embodiment. FIG. 15A is a diagram illustrating a state in which the horizontal sewing machine blade of the second roller is retracted, and FIG. 15B is a diagram illustrating the formed cut medium. FIG. 16 is a perspective view showing a recording medium processing apparatus according to the third embodiment. FIG. 17 is a flowchart showing the operation of the image recording apparatus equipped with the recording medium processing apparatus of the third embodiment. FIG. 18 is a diagram illustrating the start positions of the sheet cutting blade and the horizontal sewing blade when it is determined that sheet cutting is unnecessary. FIG. 19A is a diagram showing a state in which the first roller and the second roller are rotated from the start position shown in FIG. 18 and the sheet cutting blade is in contact with the second roller, and FIG. These are figures which show the state which the horizontal sewing machine blade contact | abutted to the 1st roller, and FIG.19 (c) is a figure which shows the formed cut medium.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a front view schematically showing an image recording apparatus 1 equipped with a recording medium processing apparatus 4.
The image recording apparatus 1 includes a feeding unit 2 that feeds a wound long recording medium 6, a transport unit 11 that transports the recording medium 6, a head unit 50 that records an image on the recording medium 6, 60 and the printer unit 3 having the cleaning units 70 and 80 for cleaning the head unit, the recording medium processing device 4 for selectively cutting the recording medium 6 on which the image is recorded and forming the horizontal perforations, and the recording medium processing The recording medium cut by the apparatus 4, that is, the discharge unit 5 that discharges the cut medium 90 is configured. The printer unit 3, the recording medium processing device 4, and a part of the discharge unit 5 are accommodated in the apparatus main body frame 10.
These components are controlled by a control unit (not shown) equipped with an arithmetic processing unit such as a personal computer or a CPU (not shown). The control unit includes a memory that stores necessary programs, data, and the like.

Each component described above will be described.
The feeding unit 2, for example, supports a recording medium 6 that is a continuous recording medium such as a wound roll paper, a paper tube fixing shaft 7 loaded with the recording medium 6, and a paper tube fixing shaft 7 rotatably. A stand 8 and a brake 9 for braking the supply speed of the recording medium 6 are configured.

  The stand 8 supports the paper tube fixing shaft 7 rotatably. The paper tube fixing shaft 7 is provided with a plurality of claw portions. These claw portions are pushed out by injecting air from an air injection port (not shown) and project in the radial direction. These claw portions bite into the inner diameter surface of the paper tube of the recording medium 6 to hold the recording medium 6.

A pulley is fixed to the paper tube fixing shaft 7, and a brake 9 is connected via a belt hung on the pulley. The brake 9 functions as a braking mechanism that applies a back tension in a direction opposite to the conveyance direction of the recording medium 6 (the direction indicated by the arrow A). The brake 9 adjusts the back tension according to the remaining amount of the recording medium 6 detected by a recording medium remaining amount detection mechanism (not shown).
With such a configuration, the feeding unit 2 sends out and supplies the recording medium 6 in accordance with the rotation of a first drum 30 and a second drum 40 described later in the transport unit 11.

  The printer unit 3 includes a transport unit 11 that transports the recording medium 6, and a first head unit 50 and a second head unit 60 that are disposed in the transport path of the transport unit 11 and record an image on the recording medium 6. The first head unit 50 and the second head unit 60 are provided to correspond to the first head unit 50 and the second head unit 60, respectively, and are configured by a first cleaning unit 70 and a second cleaning unit 80 for cleaning the head units 50 and 60. ing.

The transport unit 11 includes a plurality of transport free rollers 12 to 18, 20 to 23, a tension roller 19, a nip roller pair 24, a first drum 30, and a second drum 40.
The transport unit 11 is configured to sequentially feed the recording medium 6 supplied from the feeding unit 2 from the upstream side to the downstream side, from the free rollers 12 and 13, the first drum 30, the free rollers 14 to 16, and the second drum. 40, free rollers 17 and 18, tension roller 19, free rollers 20 to 23, and nip roller pair 24. During this conveyance, an image is recorded on the first surface (for example, the front surface side) of the recording medium 6 by the first head unit 50, and further, the second surface (for example, the second surface of the recording medium 6) Record the image on the back side. Then, the recording medium 6 on which an image is recorded on one side or both sides is sent out to the recording medium processing apparatus 4.

  The first drum 30 and the second drum 40 of the present embodiment are, for example, aluminum hollow cylinders. Although the first drum 30 and the second drum 40 do not slip with the recording medium 6 during conveyance, a plurality of the first drum 30 and the second drum 40 may be disposed on the entire drum outer peripheral surface (contact surface of the recording medium 6). There may be provided means for adsorbing the recording medium 6 by providing a small-diameter hole and bringing the inside into a negative pressure state by a pump or the like.

  The first head portion 50 is provided to face the outer peripheral surface of the first drum 30, and the second head portion 60 is provided to face the outer peripheral surface of the second drum 40. The first head unit 50 and the second head unit 60 form an image by ejecting ink onto the transported recording medium 6.

The first head unit 50 includes, for example, a recording head 51 (51a, 51b, 51c, 51d) that ejects ink of a total of four colors, cyan (C), black (K), magenta (M), and yellow (Y). And a head holding plate 52 that holds these recording heads 51. In the present embodiment, each recording head 51 a, 51 b, 51 c, 51 d of the first head unit 50 is a line head that exceeds the recording area width of the recording medium 6. Then, ink is ejected from the nozzles of the recording heads 51a, 51b, 51c, and 51d onto the recording medium 6 conveyed by the first drum 30 to perform image recording.
The second head unit 60 is also configured in the same manner as the first head unit 50 described above, and thus detailed description thereof is omitted.

  The first cleaning unit 70 is provided to face the outer peripheral surface of the first drum 30, and the second cleaning unit 80 is provided to face the outer peripheral surface of the second drum 40. The first cleaning unit 70 and the second cleaning unit 80 are respectively used for wiping, nozzle suction, etc. in order to prevent clogging of the nozzles of the first head unit 50 and the second head unit 60, respectively. Perform a cleaning process.

  In FIG. 1, the first head unit 50 and the second head unit 60 are shown in a state of being positioned at an image recording position (image recording position). At this time, the first cleaning unit 70 and the second cleaning unit 80 are disposed in the vicinity of the first head unit 50 and the second head unit 60, respectively.

In the case where the first head unit 50 is cleaned by the first cleaning unit 70, first, the first head unit 50 is separated from the first drum 30 by using a lifting mechanism (not shown). By this separation, a space is formed between the first head unit 50 and the outer peripheral surface of the first drum 30. Next, the first cleaning unit 70 is rotated in the formed space so as to face the first head unit 50 (cleaning position). Then, the first cleaning unit 70 performs a cleaning process for the first head unit 50. When the cleaning process is finished, the first cleaning unit 70 is retracted, and then the first head unit 50 is returned to the image recording position shown in FIG.
The case where the second head unit 60 is cleaned by the second cleaning unit 80 is the same as the case where the first head unit 50 is cleaned by the first cleaning unit 70 described above. Is omitted.

Next, the conveyance operation of the recording medium 6 in the printer unit 3 will be described in detail.
The recording medium 6 sent out from the feeding unit 2 is first transported to the first drum 30 via the free rollers 12 and 13. The recording medium 6 is wound around the first drum 30 by the free rollers 13 and 14. The free rollers 12 to 14 and the rotation shaft 30 a of the first drum 30 are rotatably supported by the apparatus main body frame 10.

The recording medium 6 is wound around the first drum 30 of the present embodiment at a winding angle of 330 degrees by the free rollers 13 and 14. As described above, the recording medium 6 has a configuration in which the wrapping angle of the recording medium 6 around the first drum 30 is widely secured, so that the recording medium 6 has the first drum 30 due to the tension at the start of winding and the tension at the end of winding. A normal force is applied to the outer peripheral surface of 30. Thus, the frictional force between the first drum 30 and the recording medium 6 is increased, and the recording medium 6 is moved to the first drum 30 without slipping between the first drum 30 and the recording medium 6. Hold tightly. In this way, accurate conveyance of the recording medium 6 and drum speed control are achieved.
In the present embodiment, the first drum 30 is a driven drum that rotates in synchronization with the second drum 40 via the recording medium 6. That is, a motor for driving the first drum 30 itself is not attached to the first drum 30.

  After the end of winding of the first drum 30, the recording medium 6 is conveyed to the second drum 40 via the free rollers 15 and 16. The recording medium 6 is wound around the second drum 40 by the free rollers 16 and 17. The free rollers 15 to 17 and the rotation shaft 40 a of the second drum 40 are rotatably supported by the apparatus main body frame 10.

Similarly to the first drum 30 described above, the recording medium 6 is wound around the second drum 40 of the present embodiment at a winding angle of 330 degrees. Thus, the frictional resistance between the second drum 40 and the recording medium 6 is increased, and the recording medium 6 becomes the second drum 40 without slipping between the second drum 40 and the recording medium 6. Hold tightly.
A drive motor 41 is connected to the second drum 40 via a pulley fixed to the rotation shaft 40a of the second drum 40 and a belt connected to the pulley. The recording medium 6 held on the second drum 40 is conveyed by the driving force of the driving motor 41. Therefore, the second drum 40 on the most downstream side becomes a drive drum.

  Further, an encoder 42 is connected to the rotation shaft 40 a of the second drum 40. The encoder 42 rotates in conjunction with the rotation of the second drum 40, and generates and outputs a pulse signal corresponding to the rotation position of the second drum 40. Then, the output pulse signal is notified to a drive circuit (not shown) that drives each recording head of the first head unit 50 and the second head unit 60, and ink is transmitted from each recording head in synchronization with this pulse signal. Is discharged. That is, since the recording medium 6 is conveyed at the same speed without slipping on the first drum 30 and the second drum 40, based on the pulse signal output with the rotation of the second drum 40, The ejection drive of the first head unit 50 and the second head unit 60 can be controlled.

In the present embodiment, as the encoder 42, for example, a rotary encoder that outputs a signal of 18000 pulses per rotation is used. Here, assuming that the resolution in the transport direction in image recording is 300 dpi, and recording one dot per one output pulse of the encoder 42, the diameter of the second drum 40 is 485 mm. In the present embodiment, the diameter of the first drum 30 is the same as the diameter of the second drum 40.
With such a configuration, the recording heads of the first head unit 50 and the second head unit 60 discharge ink in synchronization with the pulse signal output from the encoder 42, and duplex recording with a resolution of 300 dpi in the transport direction. It can be performed.

  In the present embodiment, the first drum 30 and the second drum 40 are arranged vertically so that at least a part thereof overlaps in the direction of gravity. Thereby, the installation area of the image recording apparatus can be reduced.

  After the end of winding of the second drum 40, the recording medium 6 passes through the free rollers 17 and 18, the tension roller 19, the free rollers 20 to 23, and the nip roller pair 24 and below the nip roller pair 24 (downstream of the conveyance path). The recording medium processing apparatus 4 arranged on the side).

  The free rollers 17 and 18 and the tension roller 19 are rotatably supported by the apparatus main body frame 10. A pulley 25 is connected to the rotation shaft of the tension roller 19. Further, a drive motor 27 is connected to the tension roller 19 via a belt 26 hung on a pulley 25. When the drive motor 27 is driven, the belt 26 stretched between the drive motor 27 and the pulley 25 is driven, and the tension roller 19 rotates. Accordingly, the tension roller 19 applies necessary tension to the recording medium 6 to prevent the recording medium 6 from slipping after the end of winding of the second drum 40.

The recording medium 6 that has passed through the tension roller 19 passes through free rollers 20 to 23 that are rotatably supported by the apparatus main body frame 10 toward the upper side (downstream of the conveyance path) in the apparatus main body frame 10. It is conveyed to the nip roller pair 24.
A drive motor (not shown) is connected to one roller of the nip roller pair 24. The nip roller pair 24 rotates so that the linear velocity of the outer peripheral surface is the same as the conveyance speed of the recording medium 6 being conveyed.
The recording medium 6 conveyed through the nip roller pair 24 is conveyed through a conveyance path between a first roller 100a and a second roller 100b, which will be described later, of the recording medium processing apparatus 4.

  The recording medium processing apparatus 4 forms a horizontal perforation on the conveyed recording medium 6 in a direction perpendicular to the conveying direction, and cuts the recording medium 6 into a sheet shape in this direction. Thus, the recording medium 6 becomes a cut medium 90 having a desired size. Details of the recording medium processing apparatus 4 will be described later.

The discharge unit 5 includes a conveyance guide 91 (91a, 91b), a discharge roller pair 92 (92a, 92b), and a discharge tray 93.
The conveyance guides 91 a and 91 b guide the cut medium 90 to the discharge roller pair 92. The cut medium 90 sent to the discharge roller pair 92 is discharged to the discharge tray 93 by the rotation of the discharge rollers 92a and 92b. The discharge tray 93 stores the cut medium 90 discharged by the discharge roller pair 92.

Next, the recording medium processing apparatus 4 will be described.
FIG. 2 is a perspective view showing the recording medium processing apparatus 4 of the first embodiment. FIG. 2 is a diagram showing an external configuration of the recording medium processing apparatus 4 viewed from the front shown in FIG.
The recording medium processing apparatus 4 is provided on a roller pair 100 including a first roller 100a and a second roller 100b, a sheet cutting blade 101a provided on the first roller 100a, and a second roller 100b. Horizontal sewing machine blade 101b, two side frames 102 and 103, and four connecting rods 104 (104-1 to 104-4, where 104-4 is in the shadow of the second roller 100b and is not shown) And a first drive motor 105a and a second drive motor 105b.

  The first roller 100 a and the second roller 100 b are connected between the two side frames 102 and 103 fixed by the four connecting rods 104 in a direction perpendicular to the side frames 102 and 103, that is, the connecting rod 104. Are arranged to face each other at a predetermined interval in a direction parallel to the direction. Opposing portions of the first roller 100 a and the second roller 100 b form a conveyance path for the recording medium 6.

  Further, the first roller 100a and the second roller 100b are configured such that the respective roller shafts (the first first roller shaft 106a and the second roller shaft 106b) are side frames 102, 103 via bearings (not shown). It is pivotally supported by the shaft.

  Here, the first roller shaft 106 a of the first roller 100 a is connected to the first drive motor 105 a outside the side frame 102. By driving the first drive motor 105a, the first roller 100a rotates clockwise as viewed from the front side of FIG. At this time, the first drive motor 105a rotates the first roller 100a so that the linear velocity of the outer peripheral surface of the first roller 100a is the same as the conveyance speed of the recording medium 6 being conveyed. Further, a sheet cut blade 101a is embedded in the first roller 100a so that the blade tip protrudes from a sword receiver 107a provided on the outer peripheral surface of the roller body. The sheet cutting blade 101a protrudes in the radial direction from the outer peripheral surface of the first roller 100a and extends in the axial direction of the first roller shaft 106a. Further, the first roller 100a has a pocket 108 which is a recess for preventing the horizontal sewing blade 101b of the second roller 100b from coming into contact with the outer peripheral surface of the first roller 100a, that is, making it non-contact. Is provided. The pocket 108 is recessed in the radial direction from the outer peripheral surface of the first roller 100a and extends in the axial direction of the first roller shaft 106a.

  Similarly, the second roller shaft 106b of the second roller 100b is connected to the second drive motor 105b outside the side frame 102. By driving the second drive motor 105b, the second roller 100b rotates counterclockwise when viewed from the front side in FIG. At this time, the second drive motor 105b rotates the second roller 100b so that the linear velocity of the outer peripheral surface of the second roller 100b is the same as the conveyance speed of the recording medium 6 being conveyed. Further, a horizontal sewing machine blade 101b is embedded in the second roller 100b in a state in which the blade tip protrudes from a sword receiver 107b provided on the outer peripheral surface of the roller body. The horizontal sewing blade 101b protrudes in the radial direction from the outer peripheral surface of the second roller 100b and extends in the axial direction of the second roller shaft 106b.

  With such a configuration, when the roller pair 100 rotates at a peripheral speed equal to the conveyance speed of the recording medium 6, the sheet cutting blade 101 a provided on the first roller 100 a cuts the recording medium 6 at a predetermined interval, and A horizontal perforation blade 101b provided on the second roller 100b forms a horizontal perforation on the recording medium 6 at a predetermined interval. By such a series of operations, the cut medium 90 in which perforations are formed at desired positions is periodically formed.

FIG. 3 is a perspective view schematically showing a position detection mechanism 120 that detects the rotational position of the roller. FIG. 4 is a side view schematically showing the sheet cutting blade 101a and the position detection mechanism 120. As shown in FIG. In FIG. 4, the first drive motor 105a is omitted.
The position detection mechanism 120 includes a photo interrupter 121 and a light shielding disk 122. In this embodiment, the light-shielding disk 122 has a radius that is different by half a circle (180 °), and includes a light-shielding portion 122a and a light-transmitting portion 122b that is smaller than the light-shielding portion 122a and is a notch. Yes.

As shown in FIG. 4, for example, the light shielding disk 122 is fixed to the first roller shaft 106a so that the sheet cutting blade 101a is positioned at a connection portion (boundary portion) between the light shielding portion 122a and the light transmitting portion 122b. ing. The light shielding disk 122 rotates with the rotation of the first roller 100a. With such a configuration, the rotational position of the first roller 100a, that is, the sheet cutting blade 101a is output by an output signal when the light shielding disk 122 passes between the light emitting portion and the light receiving portion of the light transmissive photo interrupter 121. The position is detected, and the drive motor 124 controls the first motor 105a.
The position detection mechanism 120 is attached not only to the first roller 100a but also to the second roller 100b.

The operation of the image recording apparatus 1 equipped with the recording medium processing apparatus 4 of the first embodiment configured as described above will be described with reference to the flowchart of FIG.
First, the first roller 100a and the second roller 100b are moved to an initial position where the recording medium 6 is not formed with a perforation and the recording medium 6 is the cut medium 90 (step S1). And it is judged by the judgment part 123 whether perforation formation is required (step S2). When perforation formation is necessary (Yes), the drive controller 124 rotates the second roller 100b via the second motor 105b to perform phase alignment of the second roller 100b, The roller 100b is set to the start position (step S3). When the phase alignment is completed or when the perforation is not required in step S2 (No), the conveyance of the recording medium 6 is started and the first roller 100a and the second roller 100b are rotated (step S4). ). At this time, the first roller 100a and the second roller 100b rotate in synchronization with the conveyance speed of the recording medium 6 being conveyed. That is, the linear velocities on the outer peripheral surfaces of the first roller 100 a and the second roller 100 b coincide with the conveyance speed of the recording medium 6.
Then, an image is recorded on the recording medium 6 by the printer unit 3 (step S5). When the image recording is finished and the portion of the image recorded last by the printer unit 3 passes through the recording medium processing device 4 (step S6), the conveyance of the recording medium 6 is stopped, and the first roller 100a and the second roller The rotation of 100b is stopped (step S7). Thus, a series of recording operations is completed.

FIG. 6 is a flowchart showing the phase matching operation for setting the first roller 100a and the second roller 100b to the initial positions in step S1 of FIG.
First, a determination unit (not shown) determines whether or not the photo interrupter 121 is translucent (step S11). When light is transmitted (Yes), as shown in FIG. 4, the sheet cutting blade 101 a passes above the center of the light shielding disk 122 and is above the line perpendicular to the conveyance direction of the recording medium 6, that is, on the recording medium 6. It is above the position where the sheet cutting blade 101a abuts against the recording medium 6 during cutting. Therefore, the first roller 100a is rotated clockwise until the photo interrupter 121 changes from light transmission (ON) to light shielding (OFF), and is set to the initial position shown in FIG. 7A (step S12). When light is not transmitted (No), the sheet cutting blade 101a is below the vertical line, that is, below the position where the sheet cutting blade 101a contacts the recording medium 6 when the recording medium 6 is cut. Therefore, the first roller 100a is rotated counterclockwise until the photo interrupter 121 changes from light blocking (OFF) to light transmitting (ON), and is set to the start position shown in FIG. 7A (step S13). Thus, the first roller 100a is set to the initial position.

As described above, when the first roller 100a is set to the initial position shown in FIG. 7A, the position of the sheet cutting blade 101a is a position where the sheet cutting blade 101a contacts the recording medium 6 when the recording medium 6 is cut. By changing the rotation direction of the first roller 100a depending on whether it is above or below the sheet, the sheet cut blade 101a is prevented from coming into contact with the recording medium 6 and being cut. Accordingly, the sheet cutting blade 101a can be moved to the start position without generating unnecessary cutting media.
The second roller 100b performs phase matching in the same manner.

FIG. 7A shows the start of the first roller 100a and the second roller 100b when the initial position is set in step S1 of FIG. 5 and the lateral perforation is determined to be unnecessary by the determination unit 123 in step S2. It is a figure which shows a position. In this embodiment, when it is determined that the horizontal perforation is unnecessary, the start positions of the first roller 100a and the second roller 100b remain the same as the initial position. At this starting position, the sheet cutting blade 101a is positioned on a line that passes through the centers of the first roller 100a and the second roller 100b and is perpendicular to the conveyance direction of the recording medium 6, and an angle formed by the perpendicular line and the pocket 108. θ ₁ is equal to an angle θ ₂ formed by the vertical line and the horizontal sewing blade 101b (θ ₁ = θ ₂ ). That is, in the phase matching operation in which the first roller 100a and the second roller 100b described above are set to the initial positions, the positional relationship among the sheet cutting blade 101a, the horizontal sewing blade 101b, and the pocket 108 is as shown in FIG. Thus, the first roller 100a and the second roller 100b are rotated.

  FIG. 7B and FIG. 7C are examples of the starting positions of the first roller 100a and the second roller 100b when the determination unit 123 determines that a horizontal perforation is necessary in step S2 of FIG. FIG. In FIG. 7B, the second roller 100b is rotated counterclockwise from the state (initial position) shown in FIG. 7A, and the sheet cutting blade 101a starts to advance 90 ° from the horizontal sewing blade 101b. Set to position (+ 90 ° phase). Further, in FIG. 7C, the second roller 100b is rotated clockwise from the state (initial position) shown in FIG. 7A, and the sheet cutting blade 101a is delayed by 90 ° from the horizontal sewing blade 101b. Set to start position (-90 ° phase).

  Thus, in the recording medium processing apparatus 4 of the present embodiment, the first roller 100a and the second roller 100b are moved by the drive control unit before the conveyance of the recording medium 6 is started without attaching / detaching the horizontal sewing blade 101b. By rotating, the relative phase between the sheet cut blade 101a and the horizontal perforation blade 101b can be made variable, and thus the presence or absence of the horizontal perforation can be selected.

  Next, cutting and perforation forming operations by the recording medium processing apparatus 4 will be described with reference to FIGS.

  FIG. 8 shows a diagram when the determination unit 123 determines that a horizontal perforation is unnecessary in step S2.

  When the roller pair 100 is rotated from the start position shown in FIG. 7A, first, as shown in FIG. 8A, the sheet cutting blade 101a comes into contact with the outer peripheral surface of the second roller 100b. Thus, the recording medium 6 being transported along the transport path between the roller pair 100 is cut in a direction orthogonal to the transport direction to form a cut medium 90. When the roller pair 100 further rotates, as shown in FIG. 8B, the horizontal sewing machine blade 101b is positioned to face the pocket 108 of the first roller 100a. Therefore, the horizontal perforation blade 101b does not contact the outer peripheral surface of the first roller 100a, and a horizontal perforation is not formed. When the roller pair 100 further rotates, the state shown in FIG. 8A is obtained again, the recording medium 6 is cut, and the cut medium 90 is formed.

  FIG. 8C is a diagram showing the cut medium 90 formed by the series of operations of FIG. 8A and FIG. 8B. The cut medium 90 thus formed is a cut medium in which no horizontal perforation is formed.

  Next, FIG. 9 shows an example when the determination unit 123 determines that a horizontal perforation is necessary in step S2.

  When the roller pair 100 is rotated from the start position shown in FIG. 7B, first, as shown in FIG. 9A, the sheet cutting blade 101a comes into contact with the outer peripheral surface of the second roller 100b. Thus, the cut medium 90 is formed. When the roller pair 100 further rotates, as shown in FIG. 9B, the horizontal sewing machine blade 101b comes into contact with the outer peripheral surface of the first roller 100a. Thus, a horizontal perforation is formed on the recording medium 6 being conveyed along the conveyance path between the roller pair 100. When the roller pair 100 further rotates, the state shown in FIG. 9A is obtained again, and the recording medium 6 is cut to form a cut medium 90 in which perforations are formed.

  FIG. 9C shows a cut medium 90 formed by the series of operations shown in FIGS. 9A and 9B. The cut medium 90 thus formed is a cut medium in which a horizontal perforation is formed at a position ¼ from the front end in the conveyance direction of the cut medium 90.

  Further, FIG. 10 shows an example when the determination unit 123 determines that a horizontal perforation is necessary in step S2.

  When the roller pair 100 is rotated from the start position shown in FIG. 7C, first, as shown in FIG. 10A, the sheet cutting blade 101a contacts the outer peripheral surface of the second roller 100b. Thus, the cut medium 90 is formed. When the roller pair 100 further rotates, as shown in FIG. 10B, the horizontal sewing machine blade 101b comes into contact with the outer peripheral surface of the first roller 100a. When the roller pair 100 further rotates, the state again becomes as shown in FIG. 10A, and the recording medium 6 is cut to become a cut medium 90 in which perforations are formed.

  FIG. 10C is a diagram showing the cut medium 90 formed by the series of operations of FIG. 10A and FIG. 10B. The cut medium 90 thus formed is a cut medium in which a perforation is formed at a position 3/4 from the front end in the conveyance direction of the cut medium 90.

  As described above, the position of the horizontal perforation in the cut medium 90 can be freely set by moving the relative phase between the sheet cutting blade 101a and the horizontal sewing blade 101b to an arbitrary position before starting the conveyance of the recording medium 6. It becomes possible.

  In a conventional horizontal perforation device that also serves as a cutting mechanism, the cutting quality for the recording medium is affected by a slight change in the distance between the axes of the two rollers and the blade height from the outer peripheral surface of the rollers. Therefore, as in the prior art described above, when any of the movable parts has a movable part, it is difficult to obtain a stable cutting quality in the long term due to shakiness or wear of the movable part. It is inevitable that adjustment work is required at intervals of. On the other hand, the recording medium processing apparatus of the present invention eliminates the movable part that causes the variation in the cutting depth, and can obtain a stable cut quality in the long term.

  As described above, since the recording medium processing apparatus of the present invention can perform both sheet cutting and horizontal perforation with a single apparatus, it can contribute to downsizing of the entire image recording apparatus. In addition, it is possible to realize the presence or absence of perforation and the position of the free horizontal perforation in the cutting medium without the need for manually attaching / detaching the sewing blade or changing the position, which is excellent in convenience. Furthermore, since there are no movable parts that affect the cutting depth, the long-term reliability of cutting quality is excellent, and the effect of reducing the frequency of cutting depth adjustment can be obtained.

[First Embodiment: Modification]
FIG. 11 is a perspective view showing a recording medium processing apparatus 4 according to a modification of the first embodiment. In the constituent members of this modification, the same reference numerals are assigned to the same constituent members as those in the first embodiment, and the description thereof is omitted.
The difference between this modification and the first embodiment is that there is one drive motor.

The second roller shaft 106b of the second roller 100b is connected to the second drive motor 105 on the outside of the side frame 102. By driving the drive motor 105, the second roller 100b rotates counterclockwise as viewed from the front side of FIG.
A second gear 109b is fixed to one end (side frame 102 side) of the second roller shaft 106b, and the first gear is disposed to one end (side frame 102 side) of the first roller shaft 106a. 109a is fixed. The first gear 109a and the second gear 109b are engaged with each other, and when the second roller 100b rotates counterclockwise as viewed from the front side in FIG. 11, the first roller 100a rotates clockwise.

  Further, a one-way clutch (not shown) is incorporated between the second roller shaft 106b and the second gear 109b. As a result, when the drive motor 105 is rotated in the opposite direction, that is, in the clockwise direction, the second roller shaft 106b is also rotated in the clockwise direction, but the second gear 109b is the one-way clutch. Rotates due to idle rotation. That is, the first roller 100a does not rotate, and only the second roller 100b rotates. By using this at the time of variable phase relative operation between the first roller 100a and the second roller 100b before the start of conveyance of the continuous recording medium, the same effect as in the first embodiment can be obtained with only a single power. Obtainable.

  Therefore, in addition to the advantages described in the first embodiment, the recording medium processing apparatus according to the present modification does not require two power sources as in the prior art described above. Can be realized.

[Second Embodiment]
A second embodiment of the recording medium processing apparatus of the present invention will be described with reference to FIGS.

FIG. 12 is a perspective view showing the recording medium processing apparatus 4 according to the second embodiment. In the constituent members of the second embodiment, the same reference numerals are assigned to the same constituent members as those of the first embodiment, and the description thereof is omitted.
In the second embodiment, the horizontal sewing machine blade moving mechanism that allows the horizontal sewing machine blade 101b to protrude / retract radially from the outer peripheral surface of the second roller 100b without providing the pocket 108 in the first roller 100a. 110 is provided.

  As shown in FIGS. 13 (a) and 13 (b), this horizontal sewing machine blade moving mechanism 110 is connected to the support unit 111 that supports the horizontal sewing machine blade 101b and to the support unit 111 in the radial direction. The movable portion 112 is deformed, and these are accommodated in a groove recessed radially inward from the outer peripheral surface of the second roller 100b. The horizontal sewing machine blade moving mechanism 110 can be, for example, a reciprocating moving mechanism using a cam, and a position where the horizontal sewing machine blade 101b protrudes from the outer peripheral surface of the second roller 100b (FIG. 13A). The horizontal sewing blade 101b is moved in the radial direction between the position where the horizontal sewing blade 101b is retracted from the outer peripheral surface of the second roller 100b (FIG. 13B).

FIG. 14 is a flowchart showing the operation of the image recording apparatus 1 equipped with the recording medium processing apparatus 4 of the second embodiment.
First, the first roller 100a and the second roller 100b are moved to the initial positions (step S21). This initial position is the same position as in the first embodiment described above. And it is judged by judgment part 123 whether perforation formation is required (Step S22). When perforation formation is necessary (Yes), the drive control unit 124 rotates the second roller 100b via the second motor 105b, performs phase alignment of the second roller 100b, and sets the start position. (Step S23). When the phase alignment is completed, the horizontal sewing machine blade moving mechanism 110 causes the horizontal sewing machine blade 101b to protrude from the outer peripheral surface of the second roller 100b (step S24). When the perforation is not required (No), the horizontal sewing blade 101b is retracted from the outer peripheral surface of the second roller 100b by the horizontal sewing blade moving mechanism 110 (step S25). Then, the conveyance of the recording medium 6 is started, and the first roller 100a and the second roller 100b are rotated (step S26). At this time, the first roller 100a and the second roller 100b rotate at the same speed. Steps S27 to S29 are the same as steps S5 to S7 in the first embodiment. Thus, a series of recording operations is completed.

  FIG. 15A is a diagram showing a state in which the horizontal sewing blade 101b is retracted from the outer peripheral surface of the second roller 100b by the horizontal sewing blade moving mechanism 110 in step S25 of FIG. When the conveyance of the recording medium 6 is started from this state, no perforation is formed on the formed cut medium 90 as shown in FIG.

  In the second embodiment, similarly to the first embodiment, there is no need to attach or detach the horizontal sewing blade according to the necessity / unnecessity of the horizontal perforation, and a recording medium processing apparatus excellent in convenience and versatility is provided. It is possible to provide.

[Third Embodiment]
A third embodiment of the recording medium processing apparatus of the present invention will be described with reference to FIGS.

FIG. 16 is a perspective view showing a recording medium processing apparatus 4 according to the third embodiment. In the constituent members of the third embodiment, the same reference numerals are assigned to the same constituent members as those of the first embodiment, and the description thereof is omitted.
In the first embodiment, the first roller 100a is provided with the pocket 108 for avoiding the horizontal sewing machine blade 101b from coming into contact with the outer peripheral surface of the first roller 100a. In the third embodiment, this pocket is also provided in the second roller 100b.

As shown in FIG. 16, the first roller 100a has a recess for preventing the horizontal sewing blade 101b of the second roller 100b from coming into contact with the outer peripheral surface of the first roller 100a, that is, making it non-contact. A pocket 108a is provided. The pocket 108a is recessed in the radial direction from the outer peripheral surface of the first roller 100a and extends in the axial direction of the first roller shaft 106a.
Further, the second roller 100b is provided with a pocket 108b which is a recess for preventing the sheet cutting blade 101a of the first roller 100a from coming into contact with the outer peripheral surface of the second roller 100b. The pocket 108b is recessed in the radial direction from the outer peripheral surface of the second roller 100b and extends in the axial direction of the second roller shaft 106b.

FIG. 17 is a flowchart showing the operation of the image recording apparatus 1 equipped with the recording medium processing apparatus 4 of the third embodiment.
Steps S31 to S33 are the same as steps S1 to S3 of the first embodiment. When the phase alignment of the second roller 100b is completed in step S33, or when perforation formation is unnecessary in step S32 (No), the determination unit 123 determines whether sheet cutting is necessary (step S34). . When sheet cutting is not necessary (No), the first roller 100a is rotated by the drive control unit 124 via the first motor 105a to perform phase alignment of the first roller 100a (step S35). When the phase alignment is completed, or when sheet cutting is necessary in step S34 (Yes), the conveyance of the recording medium 6 is started, and the first roller 100a and the second roller 100b rotate (step S36). . At this time, the first roller 100a and the second roller 100b rotate at the same speed. Hereinafter, Steps S37 to S39 are the same as Steps S5 to S7 of the first embodiment. Thus, a series of recording operations is completed.

  FIG. 18 is a diagram illustrating a start position after the sheet cut blade 101a and the horizontal perforation blade 101b are phase aligned when it is determined that a perforation is formed and sheet cutting is not necessary (unnecessary). . When the roller pair 100 is rotated from this starting position, as shown in FIG. 19A, the sheet cutting blade 101a is positioned to face the pocket 108b of the second roller 100b. Accordingly, the sheet cutting blade 101a does not contact the outer peripheral surface of the second roller 100b, and the recording medium 6 is not cut. When the roller pair 100 further rotates, as shown in FIG. 19B, the horizontal sewing blade 101b comes into contact with the first roller 100a. Thus, a horizontal perforation is formed on the recording medium 6 being conveyed along the conveyance path between the roller pair 100. When the roller pair 100 further rotates, the state shown in FIG. 19A is obtained again, and the recording medium 6 is not cut and a perforation is formed.

  FIG. 19C shows a continuous recording medium formed by the series of operations shown in FIGS. 19A and 19B. Thus, depending on the application, it is possible to perform only perforation without cutting the recording medium. Of course, also in this embodiment, the recording medium 6 can be cut without forming a perforation, or the recording medium 6 can be cut with a perforation. That is, when the recording medium 6 is not cut, the first roller 100a and the second roller 100b are aligned so that the sheet cutting blade 101a and the pocket 108b face each other when the roller pair 100 rotates. In the case where the start position is set and the perforation is not formed on the recording medium 6, the first roller 100 a and the first roller 100 a are arranged so that the horizontal sewing blade 101 b and the pocket 108 a face each other when the roller pair 100 rotates. The start position is set by performing phase alignment of the second roller 100b.

  As shown in FIG. 19C, when only the perforation is formed on the continuous recording medium 6 and not cut, the discharge unit 5 in the image recording apparatus 1 accommodates the uncut continuous recording medium 6. For example, it can be in the form of a rewinder unit around which the continuous recording medium 6 is wound.

  Also in this embodiment, a one-way clutch may be incorporated with a single drive motor as in the modification of the first embodiment. Further, as in the second embodiment, a sheet cutting blade moving mechanism that allows the sheet cutting blade 101a to protrude / retract in the radial direction with respect to the outer peripheral surface of the first roller 100a may be provided.

The present invention has the following effects.
1. Sheet cutting and horizontal perforation formation can be performed by one unit, which can contribute to downsizing of the apparatus.
2. The horizontal perforation position in the cut medium can be set freely.
3. By providing a pocket and a horizontal sewing machine blade moving mechanism, it is not necessary to attach and detach the horizontal sewing machine blade according to the necessity / unnecessity of the horizontal perforation, and it is excellent in convenience and versatility.
4). Since there are few moving parts, long-term reliability of cutting depth is excellent.
5). A single drive system can be used, which can contribute to downsizing and cost reduction of the apparatus.
6). By providing the pocket and the sheet cut moving mechanism, it is not necessary to attach or detach the sheet cut blade according to the necessity / unnecessity of the sheet cut, and it is excellent in convenience and versatility.

  DESCRIPTION OF SYMBOLS 1 ... Image recording apparatus, 2 ... Feeding part, 3 ... Printer part, 4 ... Recording medium processing apparatus, 5 ... Discharge part, 6 ... Recording medium, 7 ... Paper tube fixed shaft, 8 ... Stand, 9 ... Brake, 10 DESCRIPTION OF SYMBOLS ... Main body frame, 11 ... Conveying unit, 12-18 ... Free roller, 19 ... Tension roller, 20-23 ... Free roller, 24 ... Nip roller pair, 25 ... Pulley, 26 ... Belt, 27 ... Drive motor, 30 ... No. 1 drum, 30a ... rotating shaft, 40 ... second drum, 40a ... rotating shaft, 41 ... drive motor, 42 ... encoder, 50 ... first head portion, 51 ... recording head, 60 ... second head portion , 70 ... 1st cleaning part, 80 ... 2nd cleaning part, 90 ... Cut medium, 91 ... Conveyance guide, 92 ... Discharge roller pair, 93 ... Discharge tray, 100 ... Roller pair, 100a ... 1st roller DESCRIPTION OF SYMBOLS 100b ... 2nd roller, 101a ... Sheet cutting blade, 101b ... Horizontal sewing machine blade, 102, 103 ... Side frame, 104 ... Connecting rod, 105, 105a, 105b ... Drive motor, 106a ... 1st roller shaft, 106b ... Second roller shaft, 107a, 107b ... sword holder, 108, 108a, 108b ... pocket, 109a ... first gear, 109b ... second gear, 110 ... horizontal sewing machine blade moving mechanism, 111 ... support, 112 ... Movable part, 120 ... position detection mechanism, 121 ... photo interrupter, 122 ... light shielding disk, 122a ... light shielding part, 122b ... light transmitting part, 123 ... judgment part, 124 ... drive control part.

Claims (5)

A first roller disposed rotatably and a second roller disposed opposite the first roller;
In a recording medium processing apparatus in which a continuous recording medium is conveyed through a path between the first roller and the second roller,
The first roller is provided with a sheet cutting blade for periodically cutting the continuous recording medium into a sheet shape,
The second roller is provided with a horizontal perforation blade that forms a horizontal perforation in a direction perpendicular to the conveyance direction of the continuous recording medium,
A recording medium processing apparatus comprising means for changing a relative phase of rotation between the sheet cutting blade and the horizontal sewing blade.   The pocket part for making the said horizontal sewing machine blade and the said sheet-cut blade non-contact is provided in at least one of the said 1st roller and the said 2nd roller, respectively. 1. Recording medium processing apparatus of 1.   3. The recording medium processing apparatus according to claim 1, wherein a one-way clutch is provided on at least one of the first roller and the second roller.   The means for moving the sheet cutting blade and the horizontal sewing blade in the radial direction of the roller is provided on at least one of the first roller and the second roller, respectively. Recording medium processing apparatus. A feeding unit for feeding a continuous recording medium;
A printer unit for recording an image on the recording medium fed from the feeding unit;
An image recording apparatus comprising: the recording medium processing apparatus according to claim 1.

Images