JP2016093865A - Cutter blade unit and recording apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutter blade unit capable of shearing various kinds of media.SOLUTION: The cutter blade unit 30 comprises: a first blade 37; a second blade 38; and a position change section 60 capable of changing the relative position between the first blade and the second blade. The position change section is capable of changing the scissor angle between the first blade and the second blade. The position change section is also capable of changing the amount of overlapping between the first blade and the second blade. One of the first and second blades is drivable, and the position change section changes the position of the other blade, which is undrivable.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a cutter blade unit and a recording apparatus.

  Conventionally, a cutter unit having a first round blade and a second round blade is provided, and the orientation of the first round blade and the second round blade is relative to the width direction of the recording medium on which the cutter unit moves. A recording apparatus is known in which the front side of the cutter unit when shearing is inclined in a direction in which the cutter units approach each other (see, for example, Patent Document 1).

JP 2010-149243 A

  However, in the above apparatus, it is described that the recording medium is sheared in the width direction. For example, the recording medium having a relatively thin thickness and the recording medium having a relatively large thickness are sheared. The postures of the first and second round blades are not changed. Therefore, for example, there is a problem that a material that is difficult to shear is generated depending on the thickness of the recording medium.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  [Application Example 1] A cutter blade unit according to this application example includes a first blade, a second blade, and a position changing unit capable of changing a relative position between the first blade and the second blade. It is characterized by having.

  According to this configuration, the relative positions of the first blade and the second blade can be changed. For example, each medium can be applied to various media such as a relatively thin medium and a relatively thick medium. The medium can be sheared in a state suitable for shearing.

  [Application Example 2] The position changing unit of the cutter blade unit according to the application example described above is capable of changing a shear angle between the first blade and the second blade.

  According to this configuration, the medium can be easily sheared by changing the shear angle suitable for shearing each medium.

  Application Example 3 The position changing unit of the cutter blade unit according to the application example can change the amount of overlap between the first blade and the second blade.

  According to this configuration, the medium can be easily sheared by changing the overlap amount suitable for shearing of each medium.

  Application Example 4 In the cutter blade unit according to the application example described above, one of the first blade and the second blade can be driven, and the position changing unit changes the position of the other blade that is not driven. It is characterized by that.

  According to this configuration, it is necessary to change the movement or the like of the driving unit connected to the driven blade by fixing the position of the driven blade and changing the position of the other blade that is not driven. And the structure can be simplified.

  Application Example 5 The position changing unit of the cutter blade unit according to the application example can be changed in multiple stages.

  According to this configuration, the user can easily change and set the positions of the first blade and the second blade according to the type of medium.

  Application Example 6 The position changing unit of the cutter blade unit according to the application example can be changed steplessly.

  According to this configuration, it is possible to match the positions of the first blade and the second blade that are most appropriate for each medium to be sheared.

  Application Example 7 A recording apparatus according to this application example includes a cutter blade unit, and the cutter blade unit includes a first blade, a second blade, a relative relationship between the first blade and the second blade. And a position changing unit capable of changing the position.

  According to this configuration, it is possible to provide a recording apparatus capable of easily shearing the medium by changing the positions of the first blade and the second blade suitable for each medium.

1 is a schematic perspective view illustrating a configuration of a recording apparatus according to a first embodiment. 1 is a schematic side view showing a partial configuration of a recording apparatus according to a first embodiment. The front view which shows the structure of the cutter blade unit concerning 1st Embodiment. Explanatory drawing which shows the change state of the tilt angle of the cutter blade unit concerning 1st Embodiment. The front view which shows the structure of the cutter blade unit concerning 2nd Embodiment. Explanatory drawing which shows the change state of the overlap amount of the cutter blade unit concerning 2nd Embodiment.

  Hereinafter, first and second embodiments of the present invention will be described with reference to the drawings. In the following drawings, the scale of each member or the like is shown differently from the actual scale so as to make each member or the like recognizable.

(First embodiment)
First, the configuration of the recording apparatus will be described. The recording apparatus is, for example, an ink jet recording apparatus that performs recording on a recording medium by ejecting ink from a recording head as a liquid ejecting head onto a recording medium such as recording paper.

  Further, as the liquid ejecting head, in addition to a head ejecting ink, for example, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, an electrode for forming an organic EL display, a surface emitting display (FED), or the like is used. Examples include an electrode material (conductive paste) ejection head, a bioorganic matter ejection head used for biochip manufacturing, and a sample ejection head that ejects a sample as a precision pipette.

  FIG. 1 is a schematic perspective view showing the configuration of the recording apparatus, and FIG. 2 is a schematic side view showing a partial configuration of the recording apparatus. As shown in FIGS. 1 and 2, the recording apparatus 1 is a large-sized printer capable of recording up to a roll paper P as a recording medium having a relatively large width, such as a JIS standard A0 size or B0 size. And a main body unit 2 including a roll paper supply unit 3 and a recording execution unit 4, and a paper discharge receiving unit 5. The main body 2 is provided on an upper portion of a support column 8 erected on the base 9 and has a discharge port 6 for discharging the recorded roll paper P obliquely downward. An opening 7 of the stacker 10 is located below the discharge port 6, and the recorded roll paper P is discharged from the discharge port 6 toward the opening 7 and received by the stacker 10.

  The roll paper supply unit 3 is configured to be able to store a roll (hereinafter referred to as “roll”) R around which the roll paper P is wound, and the roll paper P is fed out from the roll R to execute recording. Is supplied obliquely downward. Then, the roll R is set in a roll paper holder (not shown). When the roll paper is supplied, the roll paper holder is rotated by a spindle motor (not shown) as roll driving means, whereby the roll paper P is supplied downstream.

  The recording execution unit 4 ejects (injects) ink as liquid onto the roll paper P, a recording head 12 as liquid ejecting means or recording means, a platen 11 disposed opposite to the recording head 12, and the recording head 12. , A conveyance drive roller (conveyance roller) 13 that conveys the roll paper P to the downstream side, and a conveyance driven roller 14 that is in pressure contact with the roller and is driven to rotate.

  The recording head 12 is provided on a carriage 18, and the carriage 18 has a guide shaft (not shown) extending in the scanning direction (main scanning direction, X-axis direction) of the recording head 12, and similarly in the main scanning direction (X-axis direction). While being guided by a guide plate (not shown) extending in the direction of movement, it receives power from a motor (not shown) and moves in the main scanning direction. An air suction unit 16 as a sheet suction unit is provided on the downstream side of the recording head 12, and the air suction unit 16 is placed in a regulated state so that the roll paper P does not float on the downstream side of the recording head 12. The recording quality is prevented from deteriorating due to the roll paper P being lifted.

  A cutting unit 20 that cuts the roll paper P is provided downstream of the air suction unit 16 in the feeding direction.

  The cutting unit 20 includes a cutter blade unit 30, a cutter carriage 31 on which the cutter blade unit 30 is mounted, a cutter guide 25 that guides the cutter carriage 31 in the X-axis direction, and the like. The cutter carriage 31 is configured to be capable of reciprocating along the cutter guide 25 with the X-axis direction as the movement direction under the power of a motor (not shown). As a result, the cutter blade unit 30 can also reciprocate in the X-axis direction (the width direction of the roll paper P).

  Next, the configuration of the cutter blade unit will be described. FIG. 3 is a front view showing the configuration of the cutter blade unit. As shown in FIG. 3, the cutter blade unit 30 has a first blade 37 and a second blade 38 and is provided so that the roll paper P can be sheared. Moreover, the position change part 60 which can change the relative position of the 1st blade 37 and the 2nd blade 38 is provided.

  The first blade 37 and the second blade 38 cooperate to shear the roll paper P. Specifically, the first blade 37 is provided on the recording surface (front surface) side of the roll paper P and on the upstream side in the feeding direction from the second blade 38. On the other hand, the second blade 38 is provided on the opposite surface (back surface) side of the recording surface of the roll paper P and on the downstream side in the feeding direction from the first blade 37.

  Further, on the upstream side of the cutter blade unit 30 in the feeding direction, a first inclined portion 33 and a second inclined portion 34 for guiding the sheared upstream roll paper P are provided. Further, on the downstream side in the feeding direction of the cutter blade unit 30, a third inclined portion 35 and a fourth inclined portion 36 for guiding the sheared downstream roll paper P are provided. And the groove part comprised by the 1st inclination part 33 and the 2nd inclination part 34 which were provided in the feed direction upstream, and the 3rd inclination part 35 and the 4th inclination part 36 which were provided in the feed direction downstream side It is possible to easily guide the sheared roll paper P following the groove portion constituted by

  Further, in the present embodiment, the second blade 38 is configured to be driven and rotated as it moves in the X-axis direction, and the first blade 37 is pressed by the pressing force of the roll paper P as it moves in the X-axis direction. It is configured to follow and rotate. Further, the second blade 38 rotates in the direction in which the roll paper P is wound (counterclockwise in FIG. 3). Therefore, the roll paper P can be sheared more reliably. In other words, there is almost no possibility that the cutter blade unit 30 exerts a force in the width direction X on the roll paper P.

  Next, the configuration of the position changing unit will be described. The position changing unit 60 is configured to be able to change the relative positions of the first blade 37 and the second blade 38, and the position changing unit 60 of the present embodiment includes the first blade 37 and the second blade. 38 and the slant angle with 38 can be changed. In the position changing unit 60 of the present embodiment, the second blade 38 of one blade among the first blade 37 and the second blade 38 can be driven, and the position of the first blade 37 of the other blade not driven can be changed. It is configured. Specifically, as illustrated in FIG. 3, the position changing unit 60 includes a support unit 61 that supports the rotation axis S of the first blade 37. The support part 61 is connected to a switching part 62 arranged outside the case 32 of the cutter blade unit 30. And the support part 61 moves by rotating the switch part 62 centering on a Z-axis. As a result, the position of the second blade 38 is changed (rotated and moved), and the tilt angle between the first blade 37 and the second blade 38 can be adjusted. Thus, the configuration of the drive structure connected to the second blade 38 is complicated by fixing the position of the second blade 38 to be driven and making the driven first blade 37 rotationally movable. Therefore, it is possible to easily change the tilt angle.

  Next, the change state of the cutting angle of the cutter blade unit will be described. FIG. 4 is an explanatory diagram (plan view) showing a change state of the tilt angle of the cutter blade unit.

  Here, the draft angle will be described. As shown to Fig.4 (a), the 1st inclined surface 37a is provided in the blade edge | tip of the outer peripheral part of the 1st blade 37 which is a round blade. The first inclined surface 37 a is inclined with respect to the posture of the first blade 37. Moreover, the 2nd inclined surface 38a is provided in the blade edge | tip of the outer peripheral part of the 2nd blade 38 which is a round blade. The second inclined surface 38 a is inclined with respect to the posture of the second blade 38. And in this embodiment, the attitude | position of the 2nd blade 38 is arrange | positioned in parallel with respect to the X-axis direction. On the other hand, the posture of the first blade 37 is inclined by an angle θ (θ1) with respect to the X-axis direction. In the present embodiment, the angle θ is referred to as a “shear angle”. Note that the posture of the second blade 38 may also be inclined with respect to the X-axis direction. Here, in the recording apparatus 1, various media can be applied. However, when the stagnation angle θ formed by the first blade 37 and the second blade 38 is always fixed, for example, When various types of paper P having different thicknesses are used, the shearing force applied to the papers P having different thicknesses is not appropriate, so that it may be difficult to shear. Therefore, in the present embodiment, the position changing unit 60 is configured to be able to change the shedding angle θ in multiple stages. If the configuration is such that the sag angle θ can be changed in multiple stages, it is easy to switch to the set sag angle θ, and it is easy to match the desired sag angle θ. In the present embodiment, a mode in which the shear angle θ can be changed in three stages will be described.

  FIG. 4A shows a configuration in which the shear angle between the first blade 37 and the second blade 38 is set as θ1. FIG. 4B shows a configuration in which the swaging angle θ2 between the first blade 37 and the second blade 38 is set to be smaller than the swaging angle θ1 in FIG. FIG. 4C shows a configuration in which the shear angle θ3 between the first blade 37 and the second blade 38 is set to be larger than the shear angle θ1 in FIG. In addition, the displacement of each weir angle θ1, θ2, θ3 can be easily set by the position changing unit 60.

  Here, for example, when the relatively thin paper P and the relatively thick paper P are sheared, it is necessary to increase the shearing force of the cutter blade unit 30 by shearing the relatively thick paper P. Therefore, it is preferable to set the stagnation angle θ to be larger. Therefore, in the present embodiment, for example, in the case of the paper P having a standard thickness (t = 0.1 mm to 0.3 mm), as shown in FIG. In the case of a paper P that is thinner than the standard thickness (t = less than 0.1 mm) and θ1 = 3 °), as shown in FIG. 4B, a slant angle θ2 (for example, θ2 = When the paper P is thicker than the standard thickness (t = over 0.3 mm), the slant angle θ3 (for example, θ3) is set as shown in FIG. = 4 ° to 5 °). In this way, by setting an appropriate wetting angle θ (θ1, θ2, θ3) for each paper P having a different thickness, each paper P having a different thickness can be easily sheared. In the present embodiment, the slant angle θ (θ1, θ2, θ3) is changed corresponding to the paper P having a different thickness. Can do. Then, the shearing angle θ can be appropriately set in consideration of properties (properties) such as rigidity and hardness of the medium to be sheared.

  As mentioned above, according to the said embodiment, the following effects can be acquired.

  By varying the slant angle θ (θ1, θ2, θ3) between the first blade 37 and the second blade 38, for example, various media such as paper P having different thicknesses can be easily sheared.

(Second Embodiment)
Next, a second embodiment will be described. Since the basic configuration of the recording apparatus is the same as that of the first embodiment, the description thereof will be omitted, and a different part, that is, the configuration of the cutting blade unit will be described.

  FIG. 5 is a front view showing the configuration of the cutter blade unit according to the present embodiment. As shown in FIG. 5, the cutter blade unit 30 a includes a first blade 37 and a second blade 38 and is provided so that the roll paper P can be sheared. The cutter blade unit 30 a is mounted on the cutter carriage 31. In addition, since the structure of these members is the same as that of 1st Embodiment, description is abbreviate | omitted.

  The cutter blade unit 30a of the present embodiment includes a position changing unit 70 that can change the relative positions of the first blade 37 and the second blade 38. And the position change part 70 is comprised so that change of the overlap amount of the 1st blade 37 and the 2nd blade 38 is possible. In the present embodiment, of the first blade 37 and the second blade 38, the second blade 38 of one blade can be driven, and the position changing unit 70 changes the position of the first blade 37 of the other blade that is not driven. It is configured to be possible. Specifically, as illustrated in FIG. 5, the position changing unit 70 is a flat plate member that supports the rotation axis S of the first blade 37, and includes a rack portion 71 in which gear cutting is formed on the flat plate member surface. Have. The rack portion 71 is connected to a switching portion 72 disposed on the outer side (front portion) of the case 32 of the cutter blade unit 30. The switching unit 72 has a circular gear. Then, the gear of the switching unit 72 and the teeth of the rack unit 71 mesh with each other, and the rack unit 71 is configured to move in the Z-axis direction when the gear of the switching unit 72 is rotated. As a result, the first blade 37 supported by the rack portion 71 can move in the Z-axis direction, and the amount of overlap between the first blade 37 and the second blade 38 can be adjusted.

  Next, the change state of the overlap amount of the cutter blade unit will be described. FIG. 6 is an explanatory diagram showing a change state of the overlap amount of the cutter blade unit.

  First, the overlap amount will be described. As shown in FIG. 6A, the cutter blade unit 30a takes a posture in which the blade edge of the first blade 37 and the blade edge of the second blade 38 overlap each other. Here, the overlap amount L where the first blade 37 and the second blade 38 overlap is referred to as an “overlap amount”. That is, in this embodiment, the overlapping dimension in which the first blade 37 and the second blade 38 overlap in the Z-axis direction is referred to as “overlap amount”.

  Here, in the recording apparatus 1, various media can be applied. However, when the overlapping amount L between the first blade 37 and the second blade 38 is always fixed, for example, the thickness is different. When the paper P is used, the shearing force applied to the paper P of each thickness is not appropriate, so that it may be difficult to shear. Therefore, in this embodiment, the position change unit 70 is configured to change the overlap amount L in multiple stages. In the present embodiment, a mode in which the overlap amount L can be changed in three stages will be described.

  FIG. 6A shows a configuration that is set as an overlap amount L1 between the first blade 37 and the second blade 38. FIG. 6B shows a configuration in which the overlap amount L2 between the first blade 37 and the second blade 38 is set to be smaller than the overlap amount L1 in FIG. FIG. 6C shows a configuration in which the overlap amount L3 between the first blade 37 and the second blade 38 is set to be larger than the overlap amount L1 in FIG. The displacements of the overlap amounts L1, L2, and L3 can be easily set by the position changing unit 70.

  Here, for example, when the relatively thin paper P and the relatively thick paper P are sheared, it is necessary to increase the shearing force of the cutter blade unit 30a when shearing the relatively thick paper P. Therefore, it is preferable to set the overlap amount L larger. Therefore, in the present embodiment, for example, in the case of the paper P having a standard thickness (t = 0.1 mm to 0.3 mm), as shown in FIG. 6A, the overlap amount L1 (for example, L1). If the paper P is thinner than the standard thickness (less than t = 0.1 mm), as shown in FIG. 6B, the overlap amount L2 (for example, L2 = 0) is set. .4 mm), and when the paper P is thicker than the standard thickness (t = over 0.3 mm), as shown in FIG. 6C, the overlap amount L3 (for example, L3 = 1.2 mm). ) Is set. In this way, by setting an appropriate overlap amount L (L1, L2, L3) for each sheet P having a different thickness, each sheet P having a different thickness can be easily sheared. In the present embodiment, the overlap amount L (L1, L2, L3) is changed corresponding to the paper P having different thicknesses. However, the present invention is not limited to this, and the medium may be a film or cloth. it can. Then, in consideration of properties (properties) such as rigidity and hardness of the medium to be sheared, the overlap amount L can be appropriately set.

  As described above, according to the present embodiment, the following effects can be obtained.

  By varying the overlap amount L (L1, L2, L3) between the first blade 37 and the second blade 38, various media such as paper P having different thicknesses can be easily sheared.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be added to the above-described embodiment. A modification will be described below.

(Modification 1) In the first and second embodiments, the position of the second blade 38 to be driven is fixed,
Although the position of the 1st blade 37 which is not driven was changed, it is not limited to this structure. For example, the position of the first blade 37 that is not driven may be fixed, and the position of the second blade 38 that is driven may be changed. Even if it does in this way, the same effect as the above can be acquired. The positions of both the first blade 37 and the second blade 38 may be changeable. Even if it does in this way, the same effect as the above can be acquired, and various adjustments are possible. That is, when changing the inclination of the first blade 37 and the second blade 38 with respect to the moving direction (X-axis direction), the relative angle of the first blade 37 and the second blade 38 is adjusted, and the slant angle θ is set. While changing, the inclination with respect to the moving direction (X-axis direction) of each of the first blade 37 and the second blade 38 can also be changed. Therefore, it is possible to adjust the way in which force is applied to various media such as the paper P at the time of cutting. Further, when changing the overlap amount between the first blade 37 and the second blade 38 by moving in the Z-axis direction, the relative height of the first blade 37 and the second blade 38 is adjusted, and the overlap amount is set. While changing, the position of the intersection where the first blade 37 and the second blade 38 start to overlap can also be changed, so that the position of the intersection with respect to various media such as the paper P can also be adjusted. Therefore, the ease of cutting with respect to various media such as the paper P can be adjusted.

  (Modification 2) In the first and second embodiments, the second blade 38 of the first blade 37 and the second blade 38 is driven. However, the present invention is not limited to this configuration. A driven blade that rotates following the pressing force of the paper P when the cutter blade units 30 and 30a are moved in the X-axis direction without driving both the first blade 37 and the second blade 38 may be used. If it does in this way, cutting part 20 (cutter blade units 30 and 30a) can be simplified. Further, both the first blade 37 and the second blade 38 may be driven. In this way, various media such as the paper P can be sheared more easily.

  (Modification 3) Although the position changing units 60 and 70 of the first and second embodiments can be changed in multiple stages (three stages in the embodiment), the present invention is not limited to this. For example, the position changing unit may be changeable without steps. In this way, various media can be sheared under the most appropriate conditions for each medium.

  (Modification 4) In the first and second embodiments, the first blade 37 is provided on the recording surface (front surface) side of the roll paper P and on the upstream side in the feeding direction from the second blade 38, and the second The blade 38 is provided on the opposite surface (back surface) side to the recording surface of the roll paper P and on the downstream side in the feeding direction from the first blade 37, but is not limited to this configuration. For example, the arrangement positions of the first blade 37 and the second blade 38 in the feeding direction may be appropriately set according to the medium to be used (sheared). For example, the first blade 37 is provided on the opposite surface (back surface) side to the recording surface of the roll paper P and on the downstream side in the feeding direction from the second blade 38, and the second blade 38 is provided on the recording surface of the roll paper P. It may be provided on the (surface) side and upstream in the feeding direction from the first blade 37. In this way, when the recorded roll paper P is sheared, the first blade 37 cuts on the opposite surface (back surface) side to the recording surface of the roll paper P on the upstream side in the feeding direction. The image quality can be improved without touching.

  (Modification 5) The configurations of the first embodiment, the second embodiment, and the modification may be appropriately combined or applied. In this way, various media can be easily sheared by appropriately changing the positions of the first blade 37 and the second blade 38 in accordance with the properties of the medium.

  DESCRIPTION OF SYMBOLS 1 ... Recording device, 30, 30a ... Cutter blade unit, 37 ... 1st blade, 38 ... 2nd blade, 60, 70 ... Position change part.

Claims (7)

A first blade;
A second blade;
A cutter blade unit comprising: a position changing unit capable of changing a relative position between the first blade and the second blade. In the cutter blade unit according to claim 1,
The cutter blade unit according to claim 1, wherein the position changing unit is capable of changing a tilt angle between the first blade and the second blade. In the cutter blade unit according to claim 1,
The position changing unit is capable of changing the amount of overlap between the first blade and the second blade. In the cutter blade unit according to any one of claims 1 to 3,
One of the first blade and the second blade can be driven, and the position changing unit changes the position of the other blade that is not driven. In the cutter blade unit according to any one of claims 1 to 4,
The cutter blade unit characterized in that the position changing unit can be changed in multiple stages. In the cutter blade unit according to any one of claims 1 to 4,
The cutter blade unit characterized in that the position changing unit can be changed steplessly. Equipped with a cutter blade unit,
The cutter blade unit is
A recording apparatus comprising: a first blade; a second blade; and a position changing unit capable of changing a relative position between the first blade and the second blade.

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