JP2011046101A - Cutter device and recording apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutter device and a recording apparatus which can prevent a sheared recording medium from being jammed. <P>SOLUTION: The cutter device 6 which shears a roll paper sheet R by moving a cutter holder 66, provided on the downstream side of a discharge part for discharging a roll paper sheet R subjected to recording and holding a rotary blade 65 for shearing the roll paper sheet R, in a direction perpendicular to the discharging direction of the roll paper sheet R is further provided with a second inclination part 66b2 which pushes out the sheared roll paper sheet R to the downstream side in the discharging direction as the return path side of the cutter holder 66 moves. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

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

As a recording apparatus that performs recording processing on a recording medium, for example, inkjet printers described in Patent Document 1 and Patent Document 2 below are known.
Patent Document 1 discloses a large-sized inkjet printer (Large Format Printer: LFP) capable of recording on a relatively large recording paper (for example, JIS standard A1 size, B1 size, roll paper, etc.) as a recording medium. Has been. This ink jet printer has a transport path for transporting recording paper at an inclination angle of about 60 °, and ejects ink onto the recording paper from a recording head that can reciprocate in the width direction perpendicular to the transport path of the recording paper. Perform the recording process. In addition, the ink jet printer of Patent Document 2 is configured to be able to perform recording processing on roll paper, and further, the roll paper is cut into a predetermined size (shear) on the downstream side of the discharge unit that discharges the roll paper. ). The roll paper sheared by the cutter device is loaded on a stacker or the like provided on the downstream side of the cutter device.

JP 2008-281549 A Japanese Patent No. 38677779

  By the way, in the conventional machine described in Patent Document 1, since the conveyance path is inclined at about 60 °, the recording medium sheared by the cutter device can be naturally dropped onto the stacker by its own weight. For this reason, at the time of the return operation of the cutter device, the cutter unit and the sheared recording medium do not interfere with each other to cause a jam. However, in the conventional machine in which the conveyance path is not inclined as in Patent Document 2, the sheared recording medium may not naturally fall on the stacker due to its own weight, but may remain in the moving path of the cutter. In this case, the jamming may occur due to interference between the cutter unit and the recording medium during the return operation.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a cutter apparatus and a recording apparatus that can prevent jamming of a sheared recording medium.

In order to solve the above problems, the present invention provides a cutter holder provided on the downstream side of a discharge unit that discharges a recording medium that has undergone a recording process, and holds a cutter blade that shears the recording medium. A cutter device that shears the recording medium by moving it in a width direction perpendicular to the discharge direction, and an extrusion device that pushes the sheared recording medium downstream in the discharge direction as the cutter holder moves. A configuration of providing is adopted.
By adopting such a configuration, in the present invention, the sheared recording medium is pushed to the downstream side in the discharge direction along with the movement of the cutter holder, thereby preventing jamming.

In the present invention, the width of the cutter holder provided on the downstream side of the discharge unit for discharging the recording medium that has undergone the recording process and holding the cutter blade that shears the recording medium is perpendicular to the discharge direction of the recording medium. A cutter device that reciprocates in a direction to shear the recording medium, wherein the cutter holder is inclined downwardly toward the forward path side in the moving direction to bring the recording medium to a shearing position where the cutter blade is located. A guide path for guiding, and an inclined portion for tapering the shape of the holder on the return path side so that the width of the guide path behind the shear position becomes narrower toward the return path side in the moving direction, A drive control device for moving the cutter holder to the return path side with a portion of the recording medium placed on the rear guide path. To adopt a configuration.
By adopting such a configuration, in the present invention, the cutter holder is moved to the return path side while a part of the sheared recording medium is placed on the guide path behind the shear position of the cutter holder. By placing a part of the sheared recording medium on the guide path, the recording medium is prevented from falling into the moving path of the cutter holder before the return operation. In this state, when the cutter holder moves to the return path side, the recording medium hangs down from the guide path whose width is narrowed by the inclined portion. The recording medium dripping from the guide path comes into contact with an inclined portion that makes the holder shape of the return path tapered, and is pushed out downstream in the discharge direction so as to be separated from the main body side of the recording medium.

Moreover, in this invention, the structure that the said discharge direction is a horizontal direction is employ | adopted.
By adopting such a configuration, in the present invention, it is possible to prevent a jam from occurring due to a recording medium that does not naturally fall and tends to stay in the moving path of the cutter holder.

  In the present invention, there is also provided a recording apparatus including a recording unit that performs a recording process on a recording medium, and a discharge unit that discharges the recording medium that has undergone the recording process. A configuration in which the cutter device described in 1 is provided is adopted.

It is a block diagram which shows the inkjet printer in embodiment of this invention. It is a perspective view which shows the cutter apparatus in embodiment of this invention. It is a front view of the cutter holder in the embodiment of the present invention. It is a top view of the cutter holder in the embodiment of the present invention. It is a bottom view of the cutter holder in the embodiment of the present invention. It is a left view of the cutter holder in the embodiment of the present invention. It is a right view of the cutter holder in embodiment of this invention. It is a rear view of the cutter holder in the embodiment of the present invention. It is an arrow A figure in FIG. It is a front view for demonstrating the cutting operation of the cutter apparatus in embodiment of this invention. It is a top view for demonstrating the return operation | movement of the cutter apparatus in embodiment of this invention.

  Hereinafter, embodiments of a cutter apparatus and a recording apparatus according to the present invention will be described with reference to the drawings. In each drawing used for the following description, the scale of each member is appropriately changed to make each member a recognizable size. In the present embodiment, as a recording apparatus according to the present invention, a large-sized ink jet printer (large format) capable of recording on a relatively large recording paper (for example, JIS standard A1 size, B1 size, roll paper, etc.) as a recording medium. Printer: LFP).

FIG. 1 is a configuration diagram illustrating an inkjet printer 1 according to an embodiment of the present invention. FIG. 2 is a perspective view showing the cutter device 6 in the embodiment of the present invention.
As shown in FIG. 1, the inkjet printer 1 performs a recording process on a spindle 2 that holds a roll paper (recording medium) R, a conveyance path 3 that conveys the roll paper R, and the roll paper R that is conveyed. The recording unit 4 to be implemented, the discharge unit 5 that discharges the roll paper R that has undergone the recording process, the cutter device 6 that shears the roll paper R discharged from the discharge unit 5, and the sheared roll paper R are stacked. And a stacker 7. In addition, the ink jet printer 1 includes a control unit (drive control device) (not shown) that comprehensively controls the operation of each component device.
In the following description, the conveyance direction (discharge direction) of the roll paper R is the X-axis direction, the width direction of the conveyance path 3 perpendicular to the X-axis direction (the vertical direction in FIG. 1) is the Y-axis direction, and X A vertical direction orthogonal to the axial direction and the Y-axis direction may be referred to as a Z-axis direction.

The roll paper R is held by a spindle 2 that can rotate about an axis extending in the Y-axis direction. The spindle 2 is provided at a predetermined height on the −X side of the inkjet printer 1.
The conveyance path 3 includes a conveyance path capable of conveying the roll paper R along the XY plane (horizontal plane). A platen 31 that horizontally supports the roll paper R is provided in the transport path at a position facing the recording head 41 of the recording unit 4. Further, the transport path 3 includes a plurality of transport rollers that nip the roll paper R and rotationally drive the roll paper R to transport the roll paper R.

  The recording unit 4 includes a recording head 41 that ejects ink onto the roll paper R conveyed along the conveyance path 3. The recording head 41 is mounted on a carriage that is movable in the width direction of the transport path 3. The recording head 41 includes a plurality of nozzle rows, and is configured to eject ink of a predetermined color (for example, yellow (Y), magenta (M), cyan (C), and black (K)) from each nozzle row. It has become. The recording head 41 performs a recording process for recording information such as a predetermined image and characters by ejecting ink onto the recording surface of the roll paper R supported by the platen 31.

  The roll paper R that has undergone the recording process in the recording unit 4 is discharged from a discharge unit 5 that constitutes a terminal portion of the transport path 3. The discharge unit 5 includes a plurality of discharge rollers 51 that nip the roll paper R and rotate it to discharge the roll paper R. The discharge roller 51 includes a mechanism for switching a roller for nipping depending on the paper type to a jagged roller 51a or a roller roller 51b. The discharge roller 51 is configured to be switched to a jagged roller 51a having a small contact area because the roll paper R is likely to stick to the discharge roller 51 due to static electricity or the like when the discharge target is a thin roll paper R. . Further, in the case of plain paper having a thickness, the discharge roller 51 is hard to stick to the discharge roller 51, so that the discharge roller 51 is switched to a roller roller 51b that has a large contact area and performs stable conveyance.

  A cutter device 6 that shears the discharged roll paper R to a predetermined size is provided on the downstream side of the discharge unit 5. The cutter device 6 includes a cutter unit 62 that moves in the width direction (Y-axis direction) orthogonal to the discharge direction (X-axis direction) of the roll paper R to shear the roll paper R. A stacker 7 extending in the X-axis direction is provided on the downstream side of the cutter device 6, and the roll paper R sheared by the cutter unit 62 is stacked.

  As shown in FIG. 2, the cutter unit 62 is mounted on a carriage 64 that reciprocates along a guide 63 extending in the width direction (Y-axis direction). The cutter unit 62 includes a cutter holder 66 in which a rotary blade (cutter blade) 65 that shears the roll paper R is held in pairs. The upper rotary blade 65a is a drive blade that is rotationally driven as the carriage 64 moves, and the lower rotary blade 65b is a driven blade that is driven and rotated without having a drive mechanism. Further, the cutter holder 66 has a guide path 67 that guides the roll paper R to a shear position that is arranged so that a part of the upper rotary blade 65a and a part of the lower rotary blade 65b overlap in the X-axis direction. Prepare.

Next, a characteristic configuration of the cutter holder 66 in the present embodiment will be described with reference to the six-face diagrams of FIGS. 3 to 8 and FIG. 9 which is an arrow A view in FIG.
FIG. 3 is a front view of the cutter holder 66 in the embodiment of the present invention. FIG. 4 is a plan view of the cutter holder 66 in the embodiment of the present invention. FIG. 5 is a bottom view of the cutter holder 66 in the embodiment of the present invention. FIG. 6 is a left side view of the cutter holder 66 in the embodiment of the present invention. FIG. 7 is a right side view of the cutter holder 66 in the embodiment of the present invention. FIG. 8 is a rear view of the cutter holder 66 in the embodiment of the present invention. FIG. 9 is an arrow A view in FIG.
In the following description, the moving direction side (that is, the forward path side) of the cutter holder 66 during the cutting operation is referred to as the front side, and the moving direction side (that is, the return path side) of the cutter holder 66 during the return operation is referred to as the rear side. May explain.

  As shown in FIG. 3, the cutter holder 66 includes an upper jaw 66a that holds the upper rotary blade 65a, a lower jaw 66b that holds the lower rotary blade 65b, and a connecting portion 66c that connects the upper jaw 66a and the lower jaw 66b. And have. The connecting portion 66c is disposed on the rear side (−Y side) from the shearing position. On the front side (+ Y side) from the shear position, the upper jaw portion 66a and the lower jaw portion 66b are opened up and down, and function as an inlet for the roll paper R. Further, the introduction port is formed so that the upper and lower openings become larger toward the front side.

The lower jaw 66b protrudes forward from the upper jaw 66a (see FIGS. 3 and 4). Further, the distal end portion of the lower jaw portion 66 b has a height relationship that is lower than the discharge position of the discharge portion 5. The lower jaw portion 66 b functions to scoop up the roll paper R discharged from the discharge portion 5 onto the guide path 67 as the cutter holder 66 moves.
The guide path 67 constitutes the upper surface (raised surface) of the lower jaw 66b, and is formed so as to incline downward from the shearing position toward the front side (see FIG. 7). Moreover, the guide path 67 is formed so that the width | variety becomes narrow toward the front side by the 1st inclination part 66b1 formed in the front-end | tip part of the lower jaw part 66b (refer FIG. 4).

  The first inclined portion 66b1 is provided on the + X side (side away from the discharge portion 5) of the distal end portion of the lower jaw portion 66b. The first inclined portion 66b1 has an inclined shape that is inclined downward toward the downstream side in the discharge direction of the roll paper R (see FIGS. 3 and 7). The inclination angle of the first inclined portion 66b1 with respect to the discharge direction (horizontal direction) is designed based on the drooping characteristics of the recording medium discharged from the discharge portion 5.

  The amount of sagging of the recording medium differs depending on the material and thickness, and the roll paper R such as the roll paper R differs depending on the degree of the curl. Specifically, the types of recording media include plain paper, resin film, fabric campus, and the like, and the rigidity (strength) varies depending on the material. Even if the recording medium is the same type, the sagging amount when the thickness is small is large, and the sagging amount when the thickness is large is small. In addition, the amount of sag is larger in a recording medium having curl like the roll paper R than that having no curl.

  The inclination angle of the first inclined portion 66b1 is designed in consideration of the sagging characteristics. The inclination angle of the first inclined portion 66b1 is designed to correspond to the largest amount of sagging when there are a plurality of types of shear targets. In the present embodiment, the roll paper R having a small thickness and a curl and a large amount of sag is targeted for shearing, and the inclination angle of the first inclined portion 66b1 is designed in consideration of the sag characteristics of the roll paper R. ing.

  The rear guide path 67 from the shearing position is branched into two by a connecting portion 66c. Specifically, the guide path 67 includes a first guide path 67a (see FIG. 3) on the front side (+ X side) and a second guide path 67b (see FIG. 8) on the back side (−X side) by the connecting portion 66c. Branch). The first guide path 67a functions to guide the end portion of the roll paper R separated from the main body side by shearing. Further, the second guide path 67b functions to guide the end portion of the roll paper R on the main body side.

The first guide path 67a has an inclined shape that inclines upward from the shearing position toward the rear side. The second guide path 67b extends in the horizontal direction from the shear position. Regarding the height relationship between the first guide path 67a and the second guide path 67b, the first guide path 67a is higher than the second guide path 67b.
If the first guide path 67a and the second guide path 67b are both in a height relationship, it is difficult to secure the thickness (strength) of the connecting portion 66c existing between the first guide path 67a and the cutter holder of this embodiment. 66 has a predetermined height by securing the thickness of the connecting portion 66c by making the first guide path 67a and the second guide path 67b have different height relationships (see FIG. 6).

  The lower jaw 66b has a tapered shape (see FIGS. 5, 6, and 9) on the rear side of the lower jaw 66b so that the width of the lower jaw 66b becomes narrower as the first guide path 67a moves toward the rear side (return side). It has the structure which has the 2nd inclination part (inclination part, extrusion apparatus) 66b2 to be made. The second inclined portion 66b2 is configured to be inclined at a predetermined angle with respect to the YZ plane. The second inclined portion 66b2 functions to push the sheared roll paper R to the downstream side in the discharge direction as the cutter holder 66 moves during the return operation.

  The guide path 67 is provided with a groove 67c that extends to at least the first guide path 67a on the rear side of the shearing position and exposes the lower rotary blade 65b on the guide path 67 (see FIG. 2). The lower jaw portion 66b includes a rib portion (convex portion) 66b3 standing at a predetermined height along the edge of the groove portion 67c on the rear side from the shearing position. The rib portion 66b3 functions to prevent the end of the sheared roll paper R from entering the groove portion 67c.

Then, with reference to FIG.10 and FIG.11, the characteristic operation | movement of the cutter apparatus 6 in this embodiment is demonstrated.
FIG. 10 is a front view for explaining the cutting operation of the cutter device 6 in the embodiment of the present invention. FIG. 11 is a plan view for explaining the return operation of the cutter device 6 in the embodiment of the present invention.

As shown in FIG. 10A, the cutter holder 66 before performing the cutting operation is waiting on the −Y side that is out of the conveyance path of the roll paper R.
When the roll paper R having a predetermined length is discharged from the discharge unit 5, the cutter holder 66 moves in the Y-axis direction and performs a cutting operation as shown in FIG.

As the cutter holder 66 moves during the cutting operation, the roll paper R is scooped up on the guide path 67 and guided to a shearing position where the rotary blade 65 is present and sheared. The cutter holder 66 moves to the + Y side while scooping up the sheared roll paper R (indicated by a two-dot chain line in FIG. 10) upward by the first guide path 67a.
Then, after the cutter holder 66 has sheared the roll paper R under the control of the control unit, the end of the sheared roll paper R is placed on the first guide path 67a as shown in FIG. Stop in state.

  Since the cutter holder 66 performs the cutting operation while scooping up the sheared roll paper R through the first guide path 67a, as shown in FIG. 11A, the roll paper R sheared on the roll paper R on the main body side. May overlap.

  Next, the control unit moves the cutter holder 66 to the return path side (−Y side) with the end of the sheared roll paper R placed on the first guide path 67a behind the shear position of the cutter holder 66. Let Thus, by placing the end of the sheared roll paper R on the first guide path 67a, the end of the roll paper R is prevented from falling into the moving path of the cutter holder 66 before the return operation.

  In this state, as shown in FIG. 11B, when the cutter holder 66 moves to the return path side, the rolled paper R sheared from the first guide path 67a whose width is narrowed by the second inclined portion 66b2 drips down. The roll paper R dripping from the first guide path 67a comes into contact with the second inclined portion 66b2 that makes the holder shape of the lower jaw portion 66b of the return path taper, so that the roll paper R is cut from the main body side of the roll paper R. It will be pushed downstream in the discharge direction.

  Therefore, according to the above-described embodiment, the cutter holder 66 that is provided on the downstream side of the discharge unit 5 that discharges the roll paper R that has undergone the recording process and holds the rotary blade 65 that shears the roll paper R is used as the roll paper. A cutter device 6 that shears the roll paper R by moving in the width direction perpendicular to the discharge direction of R, and the sheared roll paper R is moved downstream in the discharge direction as the cutter holder 66 moves on the return path side. By adopting the configuration including the second inclined portion 66b2 to be pushed out, the cutter device 6 that can prevent jamming due to the sheared roll paper R and the ink jet printer 1 including the cutter device 6 are obtained.

  As mentioned above, although preferred embodiment of this invention was described referring drawings, this invention is not limited to the said embodiment. Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

  For example, in the above-described embodiment, the case where the recording apparatus is the ink jet printer 1 has been described as an example. However, the recording apparatus is not limited to the ink jet printer, and may be an apparatus such as a copying machine or a facsimile.

  DESCRIPTION OF SYMBOLS 1 ... Inkjet printer (recording apparatus), 4 ... Recording part, 5 ... Discharge part, 6 ... Cutter apparatus, 65 ... Rotary blade (cutter blade), 66 ... Cutter holder, 66b2 ... 2nd inclination part (inclination part, extrusion apparatus) ), 67 ... Taxiway, 67a ... First taxiway (rear taxiway)

Claims (4)

The recording is performed by moving a cutter holder, which is provided on the downstream side of the discharge unit for discharging the recording medium that has undergone the recording process, holding a cutter blade that shears the recording medium in a width direction orthogonal to the discharging direction of the recording medium. A cutter device for shearing a medium,
A cutter device comprising: an extrusion device that pushes the sheared recording medium downstream in the discharge direction as the cutter holder moves. A cutter holder, which is provided on the downstream side of a discharge unit that discharges the recording medium that has undergone the recording process and holds a cutter blade that shears the recording medium, reciprocates in the width direction perpendicular to the discharging direction of the recording medium, and A cutter device for shearing a recording medium,
The cutter holder is inclined downwardly toward the forward path side in the moving direction to guide the recording medium to a shear position where the cutter blade is located, and the guide path behind the shear position is moved. An inclined part that tapers the shape of the holder on the return path so that the width becomes narrower toward the return path side of the direction,
A cutter apparatus, comprising: a drive control device that moves the cutter holder to the return path side in a state where a part of the sheared recording medium is placed on the rear guide path.   The cutter device according to claim 1, wherein the discharge direction is a horizontal direction. A recording apparatus comprising: a recording unit that performs a recording process on a recording medium; and a discharge unit that discharges the recording medium that has undergone the recording process,
A recording apparatus comprising: the cutter device according to claim 1 provided downstream of the discharge unit.

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