WO2022044455A1 - Dispositif de réglage de position de rotation et système d'impression - Google Patents

Dispositif de réglage de position de rotation et système d'impression Download PDF

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Publication number
WO2022044455A1
WO2022044455A1 PCT/JP2021/019558 JP2021019558W WO2022044455A1 WO 2022044455 A1 WO2022044455 A1 WO 2022044455A1 JP 2021019558 W JP2021019558 W JP 2021019558W WO 2022044455 A1 WO2022044455 A1 WO 2022044455A1
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WO
WIPO (PCT)
Prior art keywords
rotation
mark
bottle
adjusting device
position adjusting
Prior art date
Application number
PCT/JP2021/019558
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English (en)
Japanese (ja)
Inventor
純一 増尾
Original Assignee
株式会社Ｓｃｒｅｅｎホールディングス
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Publication of WO2022044455A1 publication Critical patent/WO2022044455A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/02—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/20—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/20—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
    • B41F17/22—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors by rolling contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F3/00—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed
    • B41F3/18—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed of special construction or for particular purposes
    • B41F3/20—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed of special construction or for particular purposes with fixed type-beds and travelling impression cylinders

Definitions

  • This application relates to a rotation position adjusting device and a printing system.
  • Patent Document 1 a printing system that performs high-quality printing on the side surface of a work such as a bottle has been proposed (for example, Patent Document 1).
  • the printing system includes a work holding unit that holds a work such as a bottle, and a printing device that prints on the side surface of the work held by the work holding unit.
  • the work holding part holds the work rotatably around the axis of rotation.
  • the side surface of the work to be printed is rotationally symmetric with respect to a predetermined central axis, and the work holding portion holds the work in a posture in which the central axis is along the rotation axis.
  • the printing device includes a cylindrical blanket provided to be rotatable and a plate-shaped plate for adhering ink to the surface of the blanket. Ink is applied to the upper surface of the plate-shaped plate according to the printed image, and the blanket moves and rotates with respect to the plate while being in contact with the upper surface of the plate, so that the ink adheres to the surface of the blanket.
  • the ink on the surface of the blanket is transferred to the surface of the work by rotating the blanket and the work in a state where the surface of the blanket to which the ink is attached is in contact with the surface of the work held by the work holding portion. .. This makes it possible to print on the surface of the work.
  • the work may be a bottle manufactured by casting.
  • a plurality of divided bodies constituting the bottle are produced by casting.
  • This split body is generally a bottle split in the circumferential direction.
  • these divided bodies are connected to each other to manufacture a bottle.
  • a connection mark such as a step may be formed on the surface of the bottle at the connection portion.
  • the ink may be distorted, so that high quality printing cannot be performed.
  • connection marks it is conceivable to avoid printing on the connection marks by detecting the position of the connection marks on the bottle and adjusting the position of the connection marks.
  • connection marks it may be difficult to detect the connection marks.
  • the bottle is made of a transparent member, it is difficult to visually recognize the connection mark and it is difficult to detect it even by using an optical sensor. As a result, it is difficult to position the bottle in the rotational direction.
  • the first aspect of the rotation position adjusting device is a rotation position adjusting device that rotatably holds an object around the rotation axis and adjusts the rotation position of the object, and is rotatably supported around the rotation axis.
  • a first rotation holding portion including a shaft portion and a holding member connected to an end portion of the shaft portion and holding one end of the target detachably, and a part in the circumferential direction with respect to the rotation axis. It has a mark provided and is attached to the first rotation holding portion so that the position of the mark in the circumferential direction with respect to the first rotation holding portion can be adjusted by the operator, and an external force by the operator is acting.
  • the rotation of the first rotation holding portion based on the mark member that rotates integrally with the first rotation holding portion in the absence state, the sensor that detects the mark, and the position of the mark in the circumferential direction detected by the sensor. It is equipped with a rotary drive mechanism that adjusts the position.
  • the second aspect of the rotation position adjusting device is the rotation position adjusting device according to the first aspect, which is rotatably supported around the rotation axis and urges the other end of the object to one end side of the object.
  • a second rotation holding portion is further provided.
  • a third aspect of the rotation position adjusting device is the rotation position adjusting device according to the first or second aspect, wherein the holding member is a female screwed with a male screw portion formed at one end of the object. Including the threaded part.
  • the fourth aspect of the rotation position adjusting device is the rotation position adjusting device according to any one of the first to the third aspects, wherein the mark member is fixed to the first rotation holding portion. Further, a lock member for switching between a release state in which the mark member is made rotatable with respect to the first rotation holding portion is provided.
  • a fifth aspect of the rotation position adjusting device is the rotation position adjusting device according to any one of the first to the fourth aspects, wherein the sensor is an irradiation region on the orbital locus of the mark around the rotation axis.
  • the mark member includes a light emitter that irradiates the measurement light and a light receiver that receives the measurement light, and the mark member transfers the measurement light to the light receiver when passing through the irradiation region due to rotation around the rotation axis. It has a first surface that reflects toward the first surface and a second surface that is adjacent to the first surface in the circumferential direction and reflects the measured light in a direction different from the direction toward the receiver when passing through the irradiation region. Then, either one of the first surface and the second surface functions as the mark.
  • a sixth aspect of the rotation position adjusting device is the rotation position adjusting device according to any one of the first to fourth aspects, wherein the mark is formed by a slit, a protrusion or a recess provided in the mark member. It is formed.
  • a seventh aspect of the rotation position adjusting device is the rotation position adjusting device according to the sixth aspect, in which the sensor irradiates an irradiation region on an orbital locus of the mark around the rotation axis with measurement light.
  • the edge side surface that includes the device and the light receiver that receives the measurement light and defines the circumferential edge of the mark is inclined with respect to the measurement light so that the measurement light is not directly irradiated. ..
  • the eighth aspect of the rotation position adjusting device is the rotation position adjusting device according to any one of the first to seventh aspects, and the reflectance of the mark member in the mark is in the circumferential direction with the mark. It differs from the reflectance of the mark member in the adjacent region.
  • a ninth aspect of the rotation position adjusting device is the rotation position adjusting device according to any one of the first to eighth aspects, wherein the sensor is radially outside the rotation axis with respect to the mark member. It is provided in.
  • a tenth aspect of the rotation position adjusting device is the rotation position adjusting device according to any one of the first to ninth aspects, wherein the shaft portion is formed by a flexible coupling and the flexible coupling.
  • the mark member is attached to the shaft, including a shaft that is coupled to a holding member and rotatably supported around the axis of rotation.
  • the eleventh aspect of the rotation position adjusting device is the rotation position adjusting device according to any one of the first to tenth aspects, and the rotation driving mechanism is a first edge on the downstream side in the rotation direction of the mark.
  • the rotation driving mechanism is a first edge on the downstream side in the rotation direction of the mark.
  • a first aspect of the printing system is a rotation position adjusting device according to any one of the first to eleventh aspects, and a printing device that prints on the side surface of the object held by the first rotation holding unit. Be prepared.
  • a second aspect of the printing system is the printing system according to the first aspect, wherein the holding device including the first rotation holding portion and the mark member is placed at a first position away from the printing device and the first position.
  • the printing device is further provided with a transport device for moving the transfer device from one position to a second position closer to the printing device, and the sensor and the rotation drive mechanism are provided in the printing device.
  • the rotation position of the target can be indirectly detected by detecting the mark.
  • the operator adjusts the position of the mark so that the position in the circumferential direction of the mark has a predetermined positional relationship with respect to the position in the circumferential direction of the target unsuitable area for printing.
  • the position of can be detected indirectly.
  • the print-unsuitable area can be detected even when the target print-unsuitable area is difficult to be detected by the sensor.
  • the rotation position of the first rotation holding portion is adjusted based on the print unsuitable area, the position in the circumferential direction of the print unsuitable area can be adjusted to a predetermined position.
  • the second rotation holding portion since the second rotation holding portion only presses the other end of the target, the contact surface of the second rotation holding portion with respect to the target can slip with respect to the target. Therefore, the second rotation holding portion does not necessarily rotate integrally with the target, and the rotation of the second rotation holding portion may deviate from the rotation of the target.
  • the position in the circumferential direction of the mark may shift with respect to the rotation position of the target (for example, the position in the circumferential direction of the unsuitable area for printing). Detection accuracy is reduced.
  • the mark member is attached not to the second rotation holding portion but to the first rotation holding portion. Therefore, the sensor can indirectly detect, for example, the position in the circumferential direction of the unsuitable area for printing with higher accuracy than the case where the mark member is provided in the second rotation holding portion.
  • the holding member can be firmly fixed to the target, it is possible to suppress or avoid the rotation deviation between the target and the first rotation holding portion. Therefore, the sensor can indirectly detect the rotation position of the target (for example, the position in the circumferential direction of the unsuitable area for printing) with higher accuracy.
  • the rotation position adjusting device in the locked state, the rotation deviation between the mark member and the first rotation holding portion can be suppressed or avoided. Therefore, the sensor can indirectly detect the rotation position of the target (for example, the position in the circumferential direction of the unsuitable area for printing) with high accuracy. On the other hand, in the released state, the operator can adjust the position of the mark in the circumferential direction with respect to the first rotation holding portion.
  • the second surface reflects the measurement light in a direction different from the direction toward the receiver. Therefore, it is possible to increase the contrast of the amount of light received by the measured light received by the light receiver. Therefore, the sensor can easily detect the mark.
  • the change in the amount of light received at the edge can be made steeper. Therefore, it is easy to detect the mark.
  • the degree of freedom in installing the sensor is high.
  • the shaft is provided on the side opposite to the holding member with respect to the flexible coupling, and is less likely to be displaced from the rotation axis as compared with the holding member. Since the mark member is attached to this hard-to-displace shaft, the mark orbits along a virtual circle centered on the rotation axis. Therefore, the sensor can detect the position of the mark in the circumferential direction with higher accuracy.
  • the first edge of the mark can be detected more quickly, but the rotation speed is low at the time of detecting the second edge, so that the second edge can be detected with high accuracy. can do. Therefore, the rotation position of the target can be adjusted with higher position accuracy.
  • the sensor and the rotation drive mechanism are provided in the printing device, not in the holding device to be transported by the transport device. Therefore, it is easy to design the electrical wiring arrangement of the sensor and the rotation drive mechanism.
  • FIG. 1 It is a figure which shows the example of the structure of the printing system schematically. It is a figure which shows the example of the structure of the printing system schematically. It is a block diagram which shows the example of the control system which controls a printing system. It is a figure which shows the example of the structure of the rotation position adjustment device schematically. It is a perspective view which shows an example of the structure of the mark member schematically. It is a side sectional view schematically showing an example of the structure of a mark member. It is a figure which shows an example of the positional relationship between a bottle and a backup roller schematically. It is a side sectional view schematically showing another example of the structure of a mark member. It is a side sectional view schematically showing another example of the structure of a mark member.
  • ordinal numbers such as “first” or “second” may be used in the description described below, these terms are used to facilitate understanding of the contents of the embodiments. It is used for convenience, and is not limited to the order that can occur due to these ordinal numbers.
  • the expression indicating the shape not only expresses the shape strictly geometrically, but also, for example, to the extent that the same effect can be obtained. It shall also represent a shape having irregularities and chamfers.
  • the expressions “equipped”, “equipped”, “equipped”, “included”, or “have” one component are not exclusive expressions that exclude the existence of other components.
  • the expression “at least one of A, B and C” includes A only, B only, C only, any two of A, B and C, and all of A, B and C.
  • FIGS. 1 and 2 are schematic views schematically illustrating the configuration of the printing system 100.
  • the bottle holding device according to the later embodiment can be adopted in the printing system 100.
  • the printing system 100 prints on the side surface of the work.
  • the work is an article having a side surface having a rotationally symmetric shape.
  • the work rotates about the axis of rotational symmetry of the side surface (hereinafter referred to as "rotational symmetry axis"), and printing is performed on the side surface.
  • the work is, for example, a container made of glass or a resin made of, for example, polyethylene terephthalate (PET) as a main material.
  • PET polyethylene terephthalate
  • a bottle 8 is exemplified as a work
  • a side surface 80 of the bottle 8 is exemplified as a side surface of the work.
  • the bottle 8 is held by the bottle holding device 300.
  • the detailed configuration of the bottle holding device 300 will be described in detail later in the embodiment.
  • the bottle 8 is an example of a work, and the bottle holding device 300 functions as a work holding device.
  • the XYZ Cartesian coordinate system is set as shown in FIG. 1 in order to show the directions in a unified manner in the following description.
  • the (-Z) direction is set vertically downward
  • the XY plane is set to the horizontal plane.
  • a so-called right-handed coordinate system is set in the XYZ Cartesian coordinate system.
  • the dotted arrow attached in the vicinity of the component indicates the movement of the component.
  • the printing system 100 includes at least one printing device 101.
  • the printing apparatus 101 prints, for example, a single color on the side surface 80.
  • a plurality of printing devices 101 are provided in the printing system 100, and each printing device 101 performs single-color printing of different colors to realize multi-color printing (including two-color printing; the same applies hereinafter).
  • the case where one printing apparatus 101 is mainly provided in the printing system 100 will be described below.
  • Each of the printing devices 101 includes a plate stage unit 1, an ink filling unit 2, a transfer unit 3, and a curing unit 4. Each of these units is arranged side by side in the above order from the ( ⁇ Y) direction side to the (+ Y) direction side.
  • FIG. 1 shows a state in which the bottle 8 is held by the bottle holding device 300 and separated from the transfer unit 3 and the curing unit 4.
  • FIG. 2 shows a state in which the bottle 8 is held by the bottle holding device 300 and is close to the transfer unit 3 and the curing unit 4.
  • the bottle 8 held by the bottle holding device 300 moves between the plurality of printing devices 101.
  • the bottle 8 in the bottle holding device 300 is rotatably held around the axis of rotational symmetry of the side surface 80.
  • Each of the above steps (i) to (iv) is executed in a state where the bottle 8 is held by the bottle holding device 300.
  • the steps (i) and (ii) are executed, for example, in a state where the bottle 8 is separated from the transfer unit 3 and the curing unit 4 (see FIG. 1), or while moving between the plurality of printing devices 101. ..
  • the steps (iii) and (iv) are performed in a state where the bottle 8 is close to the transfer unit 3 and the curing unit 4 (see FIG. 2).
  • ink is applied while the bottle 8 is held by the bottle holding device 300 after the steps (i) to (iv) are executed in all the printing devices 101. Further curing is performed. In this case, the curing of the ink in the step (iv) is performed as a temporary curing for each monochrome printing.
  • the printed bottle 8 is removed from the bottle holding device 300, and then the bottle 8 to be printed is attached to the bottle holding device 300.
  • the bottle 8 is attached to and detached from the bottle holding device 300 at a position away from the printing device 101.
  • the attachment and detachment is performed manually by an operator.
  • the version stage unit 1 includes a stage 11 and a version 12.
  • the stage 11 places the plate 12 on the (+ Z) direction side.
  • the plate 12 is a plate (for example, an intaglio) for forming an ink pattern.
  • the stage 11 is moved in any direction in the XYZ direction and further in the rotation direction around the Z axis. For example, a cross roller bearing mechanism is used for such movement.
  • the stage 11 is movable in the (+ Y) direction from the position on the ( ⁇ Y) direction side when viewed from the ink filling unit 2 and the transfer unit 3, and is close to the transfer unit 3 via the ink filling unit 2.
  • the stage 11 is movable in the (-Y) direction and is separated from the transfer unit 3 via the ink filling unit 2.
  • the ink filling unit 2 includes a nozzle 21 and an ink supply unit 22.
  • the ink supply unit 22 supplies photocurable ink (hereinafter, may be simply referred to as “ink”) to the nozzle 21.
  • the photocurable ink is, for example, a pigment as a color developer, a polymer material (including at least one of a monomer and an oligomer) that constitutes a strong polymer layer by polymerization, and an active species generated by chemical change upon exposure to light. Contains a photopolymerization initiator that accelerates the polymerization reaction of the polymer material.
  • the ink supplied to the nozzle 21 is ejected from the ejection port provided at the lower end of the nozzle 21 and the plate 12 ( It is applied to the surface on the + Z) direction side (hereinafter, tentatively referred to as "upper surface").
  • the plate 12 when the plate 12 is an intaglio, the upper surface of the plate 12 is rubbed by a doctor blade (not shown). As a result, the concave portion of the plate 12 is filled with ink, the ink other than the concave portion is removed, and an ink pattern is formed on the plate 12.
  • the plate 12 on which the ink pattern is formed further moves in the (+ Y) direction and approaches the transfer unit 3.
  • the transfer unit 3 includes a blanket roll 30 and a motor 33.
  • the motor 33 rotates the blanket roll 30.
  • the blanket roll 30 has a blanket body 31 and a blanket 32.
  • the blanket body 31 is a metal cylinder.
  • the blanket 32 is wrapped around the surface of the blanket body 31.
  • the blanket 32 has a cylindrical shape.
  • the blanket roll 30 is rotatably supported about the axis of rotation shown by the alternate long and short dash line in FIGS. 1 and 2.
  • the surface of the blanket 32 can carry ink.
  • the stage 11 moves in the (+ Y) direction and the blanket roll 30 faces the plate 12 in the Z direction, the surface of the blanket 32 comes into contact with the upper surface of the plate 12.
  • the ink pattern formed on the plate 12 is transferred to the surface of the blanket 32. Such a transition is also described below as the ink pattern being accepted by the blanket 32.
  • the bottle 8 is close to the transfer unit 3, the side surface 80 is in contact with the blanket 32, and the blanket 32 and the side surface 80 are in contact with each other and rotate in opposite directions. As a result, the ink pattern received by the blanket 32 is transferred to the side surface 80. It is desirable from the viewpoint of such transfer that the height of the unevenness that may occur on the side surface 80 is smaller than the thickness of the blanket 32.
  • the blanket 32 functions as an intermediate transfer body that temporarily supports the ink pattern transferred to the side surface 80.
  • the blanket 32 is made of an elastic resin material, such as a silicone resin.
  • Reverse transfer disturbs the ink pattern on the side surface 80.
  • the viscosity of the ink transferred to the side surface 80 to reduce reverse transfer is increased, for example, as follows.
  • Light is irradiated from the curing unit 4 toward the side surface 80 immediately after receiving the transfer of the ink pattern from the blanket 32.
  • a part of the polymer material contained in the ink is polymerized to increase the viscosity of the ink, but the ink is cured under conditions that do not cure the entire ink.
  • Light is emitted from the unit 4.
  • light is emitted from the curing unit 4 under the condition that the entire ink is cured. Such conditions are set, for example, by the intensity of the light.
  • the adhesiveness from the side surface 80 to the blanket 32 decreases, and the reverse transfer is reduced. Such a decrease in adhesiveness is also desirable from the viewpoint of avoiding contamination of the bottle holding device 300.
  • FIG. 3 is a block diagram schematically showing a control system that controls the printing system 100.
  • the arrow indicates that the element indicated by the block on the arrowhead side mechanically drives or controls the element indicated by the block on the arrowhead side.
  • the stage moving device 401 moves the stage 11 in the (+ Y) direction and the ( ⁇ Y) direction.
  • the motor drive circuit 402 controls the drive of the motor 33.
  • the motor 33 rotates the blanket roll 30.
  • the bottle transfer device 403 brings the bottle holding device 300 closer to or further from the transfer unit 3 and the curing unit 4. When the printing system 100 is provided with a plurality of printing devices 101, the bottle transfer device 403 also moves the bottle holding device 300 between them.
  • the control device 9 integrally controls the operations of the stage moving device 401, the motor drive circuit 402, the bottle transfer device 403, the ink supply unit 22, and the curing unit 4.
  • the control device 9 controls the operation of, for example, the stage moving device 401 and the ink supply unit 22, and the ink pattern in the plate 12 can be obtained.
  • the control device 9 controls, for example, the operation of the stage moving device 401 and the motor drive circuit 402, and causes the blanket 32 to accept the ink pattern.
  • the control device 9 controls the operation of, for example, the bottle holding device 300 and the motor drive circuit 402, and transfer from the blanket 32 to the side surface 80 is realized.
  • the side surface 80 of the bottle 8 may include an area where printing is not desirable (hereinafter, referred to as a print unsuitable area 8a).
  • the unsuitable area for printing 8a is, for example, a connection mark (also referred to as a seam) formed during the manufacture of the bottle 8.
  • the bottle 8 is manufactured as follows. First, a plurality of divided bodies obtained by dividing the bottle 8 into a plurality of parts are manufactured by a method such as casting. Here, a plurality of divided bodies obtained by dividing the bottle 8 in the circumferential direction are manufactured. Next, the bottle 8 is manufactured by connecting the plurality of divided bodies in the circumferential direction. According to this manufacturing method, connection marks such as steps are formed in the connection portion of the divided body. Printing on these connection marks causes printing defects such as ink distortion. Therefore, it is desirable to avoid printing in an unsuitable area 8a such as a connection mark.
  • FIG. 4 is a side view schematically showing an example of the configuration of the rotation position adjusting device 600.
  • the print-unsuitable region 8a is formed, for example, along a cutting line when the bottle 8 is cut in a cross section including the rotation symmetry axis 800 of the bottle 8.
  • the print unsuitable area 8a is schematically shown by a broken line.
  • the unsuitable area for printing 8a is not necessarily limited to the connection marks, and may be any area where printing is not desirable.
  • This rotation position adjusting device 600 holds the bottle 8 rotatably around the rotation axis 309 and adjusts the rotation position of the bottle 8.
  • the rotation position adjusting device 600 includes a bottle holding device 300, a sensor 700, and a rotation driving mechanism 500. In the following, each configuration will be outlined first, and then detailed.
  • the bottle holding device 300 rotatably holds the bottle 8 around the rotation axis 309 along the X direction.
  • the bottle 8 is held by the bottle holding device 300 in a lateral posture in which the rotation symmetry axis 800 is along the rotation axis 309.
  • the circumferential direction and the radial direction of the rotation axis 309 are also simply referred to as the circumferential direction and the radial direction, respectively.
  • the bottle holding device 300 includes a first holding portion 310 and a mark member 350.
  • the first holding portion 310 rotatably holds one end of the bottle 8 around the rotation axis 309.
  • One end of the bottle 8 held by the first holding portion 310 is one end of the bottle 8 on the axis of rotational symmetry 800.
  • the first holding unit 310 includes the first rotation holding unit 311.
  • the first rotation holding portion 311 includes a first shaft portion 312 rotatably supported around the rotation axis 309 and a holding member 313 connected to an end portion of the first shaft portion 312.
  • the holding member 313 removably holds one end of the bottle 8. With the holding member 313 holding one end of the bottle 8, the first rotation holding portion 311 rotates around the rotation axis 309, so that the bottle 8 held by the first rotation holding portion 311 also rotates around the rotation axis 309. Rotate with.
  • the rotation drive mechanism 500 applies a driving force for rotating the first rotation holding unit 311 around the rotation axis 309 to the first rotation holding unit 311.
  • the rotation drive mechanism 500 includes a motor 501, and the rotational force of the motor 501 is transmitted to the first rotation holding portion 311 so that the first rotation holding portion 311 rotates around the rotation axis 309.
  • the rotation drive mechanism 500 transmits the rotational force to the first rotation holding portion 311 via the power transmission mechanism 380.
  • the power transmission mechanism 380 includes various mechanical elements such as gears, pulleys, and belts, and transmits the rotational force from the rotation drive mechanism 500 to the first rotation holding unit 311.
  • the power transmission mechanism 380 may include, for example, a clutch, and the connection state in which the rotational force from the rotational drive mechanism 500 is transmitted to the first rotation holding unit 311 and the rotational force from the rotational drive mechanism 500 are held in the first rotation. It may be switched to the cutoff state which does not transmit to the part 311.
  • the mark member 350 is a member for indirectly detecting the position in the circumferential direction of the print-unsuitable area 8a of the bottle 8 held by the first rotation holding unit 311 and has the mark M1.
  • the mark M1 is formed on a part of the rotation axis 309 in the circumferential direction.
  • a single mark M1 is formed on the mark member 350.
  • the central angle formed by both ends of the mark M1 in the circumferential direction and the rotation axis 309 is set to, for example, several degrees or less.
  • FIG. 5 is a perspective view showing a schematic example of the configuration of the mark member 350
  • FIG. 6 is a side sectional view showing a schematic example of the configuration of the mark member 350.
  • the mark member 350 is rotatably attached to the first rotation holding portion 311 so that the position of the mark M1 in the circumferential direction with respect to the first rotation holding portion 311 can be adjusted by the operator.
  • the mark member 350 can be rotated relative to the first rotation holding portion 311. can. That is, the mark member 350 rotates with respect to the first rotation holding portion 311 due to the external force of the operator.
  • the operator can adjust the position of the mark M1 with respect to the bottle 8 in the circumferential direction.
  • the operator adjusts the position of the mark M1 so that the position in the circumferential direction of the mark M1 has a predetermined positional relationship with the position in the circumferential direction of the print unsuitable area 8a of the bottle 8.
  • the operator adjusts the position of the mark M1 so that the position of the mark M1 in the circumferential direction substantially coincides with the position of the mark M1 in the circumferential direction of the print-unsuitable area 8a of the bottle 8.
  • the mark member 350 rotates integrally with the first rotation holding unit 311 in a state where the adjustment by the operator is not performed. That is, in a state where the external force by the operator does not act on the mark member 350, the mark member 350 rotates integrally with the first rotation holding portion 311. Therefore, after adjustment by the operator, the first rotation holding portion 311 and the mark member 350 and the bottle 8 have a positional relationship between the circumferential position of the mark M1 and the circumferential position of the print unsuitable area 8a of the bottle 8. While maintaining, it rotates around the rotation axis 309.
  • the sensor 700 detects the mark M1.
  • the sensor 700 is, for example, an optical sensor.
  • the rotation drive mechanism 500 rotates the first rotation holding portion 311 around the rotation axis 309 in a state where no external force by the operator is applied.
  • the mark member 350 and the first rotation holding portion 311 rotate integrally. That is, the mark M1 orbits around the rotation axis 309.
  • the mark M1 is detected by the sensor 700.
  • the detection result of the sensor 700 is output to the control device 9.
  • the circumferential position of the mark M1 Since the circumferential position of the mark M1 has a predetermined positional relationship with the circumferential position of the print unsuitable area 8a of the bottle 8, the circumferential position of the print unsuitable area 8a is detected based on the circumferential position of the mark M1. can do. That is, by detecting the circumferential position of the mark M1, the circumferential position of the print unsuitable region 8a can be indirectly detected.
  • the rotation drive mechanism 500 rotates the first rotation holding portion 311 based on the position in the circumferential direction of the mark M1 detected by the sensor 700, and the initial rotation position of the bottle 8 at the time of printing. To adjust. Specifically, the rotation drive mechanism 500 adjusts the initial rotation position of the bottle 8 at the time of printing so that printing is not performed in the print unsuitable area 8a of the bottle 8.
  • the first holding portion 310 includes the first rotation holding portion 311 and the first rotation holding portion 311 includes the first shaft portion 312 and the holding member 313.
  • the first shaft portion 312 includes the first shaft 314.
  • the first shaft 314 extends along the rotation axis 309 and is rotatably supported around the rotation axis 309 with respect to the holding body 330.
  • the holding main body portion 330 includes a flat plate-shaped base 333, a first support portion 331, and a second support portion 332.
  • the base 333 has a flat plate shape perpendicular to the Z direction.
  • the first support portion 331 is erected in the (+ Z) direction from the base 333 on the (-X) direction side.
  • the second support portion 332 is erected in the (+ Z) direction from the base 333 at a position separated from the first support portion 331 in the (+ X) direction at predetermined intervals.
  • the predetermined interval is wider than the height of the bottle 8 (the length of the bottle 8 along the X direction in FIG. 4).
  • the first shaft 314 is pivotally supported by the first support portion 331 by, for example, a bearing (not shown).
  • a holding member 313 is provided at the end of the first shaft 314 on the (+ X) direction side, and a knob member 319 is provided at the end of the first shaft 314 on the ( ⁇ X) direction side.
  • the holding member 313 detachably holds the mouth portion 81, which is one end of the bottle 8.
  • the bottle 8 has a mouth portion 81, a body portion 82, and a bottom portion 83.
  • the body portion 82 has a cylindrical shape, and the side surface 80, which is the outer surface thereof, is rotationally symmetric with respect to the rotational symmetry axis 800.
  • the bottom portion 83 closes the opening of the body portion 82 on the (+ X) direction side.
  • the mouth portion 81 is connected to the opening on the ( ⁇ X) direction side of the body portion 82, and has a tapered cylindrical shape whose diameter decreases as the distance from the body portion 82 increases.
  • a male screw portion is formed on the outer surface of the tip of the mouth portion 81.
  • the holding member 313 has the same shape as the bottle cap. Specifically, the holding member 313 includes a connecting portion 3131 and a tubular body 3132 (see FIG. 6).
  • the connecting portion 3131 has, for example, a cylindrical shape or a disk shape centered on the rotation axis 309.
  • the diameter of the connecting portion 3131 is larger than the diameter of the first shaft 314, and the male formed on the main surface of the connecting portion 3131 on the (-X) direction side at the end of the first shaft 314 on the (+ X) direction side.
  • a female threaded portion 313a to be screwed with the threaded portion 314a is formed.
  • the tubular body 3132 is erected on the peripheral edge of the main surface of the connecting portion 3131 on the (+ X) direction side, and extends in the (+ X) direction.
  • a female screw portion 313b to be screwed into the male screw portion 81a of the mouth portion 81 of the bottle 8 is formed.
  • the operator holds the bottle 8 and restricts the rotation of the bottle 8 while pinching the mouth portion 81 and the holding member 313 in the direction of screwing each other.
  • the member 319 is rotated.
  • the rotation causes the mouth portion 81 and the holding member 313 to be screwed together.
  • the mouth portion 81 and the holding member 313 are connected by the screwing.
  • the first shaft 314 and the bottle 8 are connected in the X direction.
  • the operator rotates the picking member 319 in the direction of releasing the screwing between the mouth portion 81 and the holding member 313 while restricting the rotation of the bottle 8.
  • the holding member 313 is removed from the mouth portion 81, and the connection between the first shaft 314 and the bottle 8 is released.
  • the first shaft portion 312 also includes the self-aligning bearing 315.
  • the self-aligning bearing 315 rotatably supports the first shaft 314 on the holding main body 330.
  • the first shaft 314 is fixed through the inner ring of the self-aligning bearing 315, and the outer ring of the self-aligning bearing 315 is fixed to the holding main body portion 330 (first support portion 331).
  • the fixing of the outer ring of the self-aligning bearing 315 to the first support portion 331 is not shown in FIG.
  • the inner ring of the self-aligning bearing 315 is rotatable with respect to the outer ring and is also tiltable.
  • the inner ring of the self-aligning bearing 315 tilts and displaces with respect to the outer ring according to the bending of the first shaft 314, so that the first shaft 314 bends. It can rotate as it is.
  • the shape of the mouth portion 81 of the bottle 8 may differ individually due to product variations. Due to this shape variation, for example, the central axis of the mouth portion 81 may deviate from the rotational symmetry axis 800 of the body portion 82. In this case, when the mouth portion 81 of the bottle 8 is attached to the holding member 313, the rotation symmetry axis 800 of the body portion 82 of the bottle 8 shifts with respect to the rotation axis 309. That is, the bottle 8 is displaced in the radial direction.
  • the bottle holding device 300 is provided with a backup roller 370.
  • the backup roller 370 is arranged radially outside the bottle 8 and abuts on the side surface 80 of the bottle 8. Although only one backup roller 370 is shown in FIG. 4, a plurality of backup rollers 370 are provided. The plurality of backup rollers 370 abut on the side surface 80 of the bottle 8 at different positions in the circumferential direction.
  • FIG. 7 is a diagram schematically showing an example of the configuration of the bottle holding device 300.
  • the backup rollers 370a and the backup rollers 370b are provided as the plurality of backup rollers 370.
  • Each backup roller 370 has a rotating body shape whose axial direction is the X direction parallel to the rotation axis 309, and is rotatably supported by the first support portion 331 and the second support portion 332.
  • Each backup roller 370 is rotatably supported around an axis parallel to the axis of rotation 309.
  • the backup roller 370a is arranged on the opposite side of the blanket 32, that is, on the (+ Y) direction side with the bottle 8 in the Y direction in which the side surface 80 of the bottle 8 is pressed against the blanket 32 of the printing apparatus 101. ing.
  • the backup roller 370a abuts on the side surface 80 of the bottle 8 from the (+ Y) direction side to regulate the displacement of the bottle 8 in the (+ Y) direction.
  • the other backup roller 370b is arranged at a position lower than the backup roller 370a in the Z direction.
  • the backup roller 370b abuts on the side surface 80 of the bottle 8 from below to regulate the displacement of the bottle 8 in the direction of gravity, that is, in the ( ⁇ Z) direction.
  • the backup roller 370 can suppress the displacement of the bottle 8.
  • Three or more backup rollers 370 may be provided.
  • the holding member 313 is displaced according to the adjustment of the holding posture. do.
  • the self-aligning bearing 315 allows the first shaft 314 to bend due to the displacement of the holding member 313. That is, even if the first shaft 314 is bent, the inner ring of the self-aligning bearing 315 is inclined and displaced with respect to the outer ring according to the bending of the first shaft 314. Therefore, the bottle 8 can be stably rotated while the first shaft 314 is bent, that is, the holding posture of the bottle 8 is adjusted.
  • the holding member 313 is hardly displaced, so that a large stress is applied to the mouth portion 81 and the holding member 313 of the bottle 8.
  • the stress can be relieved and the bottle 8 can be rotated stably.
  • the bottle holding device 300 also includes a second holding portion 320.
  • the second holding portion 320 includes a second rotation holding portion 321.
  • the second rotation holding portion 321 urges the other end of the bottle 8 (here, the bottom portion 83) rotatably around the rotation axis 309 toward the ( ⁇ X) direction.
  • the second rotation holding portion 321 includes a second shaft 322, an abutting member 323, and an urging member 324.
  • the second shaft 322 extends along the rotation axis 309 and is arranged so as to coincide with the axis of the first shaft portion 312 (that is, the axis of the first shaft 314).
  • the second shaft 322 is rotatably supported around the rotation axis 309 with respect to the second support portion 332, and is also movably supported with respect to the second support portion 332 along the X direction.
  • a contact member 323 that comes into contact with the bottom 83 of the bottle 8 is provided.
  • a knob member 325 is provided at the end of the second shaft 322 on the (+ X) direction side.
  • the size of the contact member 323 seen along the rotation axis 309 is larger than that of the second shaft 322.
  • the urging member 324 is provided between the contact member 323 and the wall surface on the (-X) side of the second support portion 332.
  • the urging member 324 urges the abutting member 323 to the bottom 83 side of the bottle 8.
  • the urging member 324 includes a spring, and the spring is loosely inserted into the second shaft 322.
  • the urging member 324 urges the abutting member 323 toward the bottom 83, the urging force is transmitted to the bottom 83 of the bottle 8 via the abutting member 323. That is, the contact member 323 urges the bottom portion 83 of the bottle 8 toward the mouth portion 81.
  • the bottle 8 is sandwiched by the first holding portion 310 and the second holding portion 320 in the X direction.
  • the operator can move the picking member 325 in the (+ X) direction while resisting the urging force of the urging member 324 to separate the contact member 323 from the bottom 83. Separating the abutting member 323 from the bottom 83 facilitates the process of removing the holding member 313 from the mouth 81.
  • the mark member 350 is rotatably connected to the first rotation holding portion 311.
  • the mark member 350 has a cap shape that can be attached to the holding member 313 from the ( ⁇ X) direction side.
  • the mark member 350 includes a ring plate portion 351 and a cylindrical body 352.
  • the ring plate portion 351 has a ring-shaped plate shape, and the first shaft 314 is passed through the hole in the central portion of the ring plate portion 351.
  • the ring plate portion 351 faces the holding member 313 in the X direction.
  • the tubular body 352 stands on the outer peripheral edge of the main surface of the ring plate portion 351 on the (+ X) direction side, and extends from the outer peripheral edge to the (+ X) direction side.
  • the central axis of the tubular body 352 is along the rotation axis 309.
  • a part of the holding member 313 on the ( ⁇ X) direction side is inserted inside the mark member 350.
  • the tubular body 352 of the mark member 350 surrounds a part of the holding member 313.
  • the mark M1 is formed on the mark member 350.
  • the mark M1 is provided on a part of the rotation axis 309 in the circumferential direction.
  • the mark M1 may be optically detectable, and in the example of FIG. 5, it is a slit 355 provided in the tubular body 352. As the mark member 350 rotates around the rotation axis 309, the mark M1 orbits around the rotation axis 309.
  • the operator can substantially match the circumferential position of the print-unsuitable area 8a of the bottle 8 with the circumferential position of the mark M1.
  • the mark member 350 rotates integrally with the first rotation holding portion 311.
  • the mark member 350 and the first rotation holding portion 311 are integrated. You may rotate with. In this case, the operator can rotate the mark member 350 with respect to the first rotation holding portion 311 by applying an external force equal to or higher than the static friction force to the mark member 350 in the circumferential direction.
  • a lock member 390 may be provided for fixing the mark member 350 and the holding member 313 so that they can be released.
  • the lock member 390 sets the locked state in which the mark member 350 is fixed in position with respect to the first rotation holding portion 311 and the unlocked state in which the mark member 350 is rotatable with respect to the first rotation holding portion 311. Switch based on the operation.
  • the lock member 390 includes, for example, a set screw 391.
  • the set screw 391 is screwed into the screw hole 352a formed in the tubular body 352 of the mark member 350.
  • the screw hole 352a penetrates the tubular body 352 in the radial direction, and when the set screw 391 is screwed into the screw hole 352a, its tip abuts on the side surface of the holding member 313.
  • the set screw 391 is tightened by the operator, the side surface of the holding member 313 is pressed in the radial direction, so that the holding member 313 and the mark member 350 can be fixed to each other.
  • the tip of the set screw 391 separates from the side surface of the holding member 313.
  • the mark member 350 can rotate with respect to the first rotation holding portion 311.
  • the operator loosens the set screw 391 so that the positional relationship between the circumferential position of the mark M1 and the circumferential position of the print-unsuitable area 8a of the bottle 8 becomes a predetermined positional relationship. Is rotated with respect to the first rotation holding portion 311. For example, the operator rotates the mark member 350 so that the circumferential position of the mark M1 and the circumferential position of the print unsuitable area 8a substantially match. The operator tightens the set screw 391 after adjusting the position of the mark M1. As a result, the mark member 350 is fixed in position with respect to the first rotation holding portion 311.
  • the mark member 350 and the first rotation holding portion 311 rotate integrally in a state where the positional relationship between the circumferential position of the mark M1 and the circumferential position of the print unsuitable area 8a is a predetermined positional relationship. It will be possible.
  • a plurality of screw holes 352a may be formed.
  • a plurality of screw holes 352a may be formed at equal intervals in the circumferential direction.
  • a set screw 391 is screwed into each screw hole 352a. According to this, a plurality of set screws 391 press the side surface of the holding member 313 at different positions in the circumferential direction. Therefore, the fixing force between the holding member 313 and the mark member 350 can be improved.
  • the rotation drive mechanism 500 is controlled by the control device 9.
  • the rotation drive mechanism 500 has a motor 501 and applies a rotational force to the first rotation holding portion 311 via the power transmission mechanism 380.
  • the first rotation holding portion 311 rotates around the rotation axis 309 based on the rotational force from the rotation drive mechanism 500.
  • the rotation drive mechanism 500 rotates the first rotation holding portion 311 so that the first rotation holding portion 311 and the mark member 350 and the bottle 8 rotate integrally around the rotation axis 309.
  • the rotation drive mechanism 500 is provided in the printing device 101. That is, in a state where the bottle holding device 300 is stopped at a position close to the printing device 101, the rotation drive mechanism 500 is mechanically connected to the power transmission mechanism 380, and the bottle holding device 300 is separated from the printing device 101. Then, the mechanical connection between the rotary drive mechanism 500 and the power transmission mechanism 380 is released.
  • the sensor 700 is, for example, an optical sensor and detects the mark M1.
  • the sensor 700 includes, for example, a light emitter 701 and a light receiver 702 (see FIG. 5).
  • the light emitter 701 outputs the measurement light to a part of the irradiation region R1 on the orbital locus of the mark M1.
  • the measurement light is light such as infrared rays (that is, electromagnetic waves).
  • the light emitter 701 is provided radially outside the mark member 350, and outputs the measurement light toward the outer peripheral surface of the tubular body 352.
  • the receiver 702 receives the measurement light reflected by the tubular body 352.
  • the light receiver 702 is also provided radially outside the mark member 350. Specifically, the light receiver 702 is provided at a position where the measurement light reflected by the outer peripheral surface of the tubular body 352 can be received.
  • the mark M1 As the mark M1 orbits around the rotation axis 309, the mark M1 passes through the irradiation region R1 of the measurement light.
  • the receiver 702 receives the measurement light reflected on the outer peripheral surface of the cylindrical body 352 other than the mark M1.
  • the receiver 702 receives the measurement light reflected in the region corresponding to the mark M1.
  • the mark M1 is formed by the slit 355, the measurement light passes through the mark M1 (slit 355) and is reflected, for example, on the outer peripheral surface of the holding member 313. In this case, the light receiver 702 receives the measurement light reflected by the side surface of the holding member 313.
  • the reflectance of the side surface of the holding member 313 is different from the reflectance of the outer peripheral surface of the mark member 350.
  • the side surface of the holding member 313 is made of a low reflective material such as resin
  • the outer surface of the tubular body 352 is made of a high reflective material such as aluminum. Therefore, the received amount of the measured light reflected in the region where the mark M1 exists is different from the received amount of the measured light reflected in the region where the mark M1 does not exist. Therefore, the sensor 700 can detect the mark M1 based on the amount of the measured light received by the light receiver 702.
  • the print-unsuitable area is detected by detecting the circumferential position of the mark M1.
  • the position of 8a in the circumferential direction can be indirectly detected.
  • the senor 700 is provided in the printing apparatus 101. That is, when the bottle holding device 300 is stopped at a printing position close to the printing device 101, the sensor 700 is arranged at a position radially outside the mark member 350.
  • the bottle holding device 300 is not provided with electrical elements such as a rotation drive mechanism 500 and a sensor 700. According to this, it is not necessary to consider the movement of the electric wiring due to the movement of the bottle holding device 300, so that the design of the electric wiring of the printing system 100 is easy.
  • An area for attaching / detaching the bottle 8 (hereinafter referred to as “attaching / detaching area”) is set at a position away from the printing device 101.
  • the bottle transfer device 403 transports the bottle holding device 300 to the attachment / detachment area.
  • the operator attaches / detaches the bottle 8 to / from the bottle holding device 300 which has been conveyed to the attachment / detachment area. Specifically, the operator removes the printed bottle 8 from the bottle holding device 300 and attaches a new bottle 8 to the bottle holding device 300.
  • the operator confirms the position in the circumferential direction of the print-unsuitable area 8a of the bottle 8 and the position in the circumferential direction of the mark M1. If these relative positional relationships do not satisfy the predetermined positional relationship, the operator manually adjusts the position of the mark M1 in the circumferential direction. Specifically, the operator rotates the mark member 350 with respect to the first rotation holding portion 311 so that the relative positions of the print unsuitable area 8a and the mark M1 satisfy a predetermined positional relationship.
  • the position of the unsuitable printing area 8a in the circumferential direction when the bottle 8 is attached to the bottle holding device 300 may vary due to manufacturing variations of the bottle 8.
  • the operator may check the position of the print unsuitable area 8a in the circumferential direction for each bottle 8 and adjust the position of the mark M1 in the circumferential direction each time.
  • the manufacturing variation within the same lot is relatively small and the variation in the position of the print unsuitable region 8a in the circumferential direction is small.
  • the operator may adjust the position of the mark M1 when the first bottle 8 in the same lot is attached to the bottle holding device 300. In this case, the operator does not have to check and adjust the mark M1 when the subsequent bottles 8 in the same lot are attached to the bottle holding device 300.
  • the operator After adjusting the position of the mark M1, the operator instructs the printing system 100 to start printing. For example, the operator inputs a print start instruction to a user interface (not shown) provided in the print system 100.
  • the printing device 101 performs an operation of transferring ink according to the printing pattern to the surface of the blanket 32 under the control of the control device 9.
  • the bottle transfer device 403 moves the bottle holding device 300 to a printing position close to the printing device 101 under the control of the control device 9.
  • the power transmission mechanism 380 is mechanically connected to the rotation drive mechanism 500, and the position of the sensor 700 is a position where the mark M1 can be detected with respect to the mark member 350.
  • the clutch of the power transmission mechanism 380 is switched to the ON state under the control of the control device 9.
  • the rotational force of the rotation drive mechanism 500 can be transmitted to the first rotation holding unit 311 via the power transmission mechanism 380.
  • the rotation drive mechanism 500 rotates the first rotation holding unit 311 around the rotation axis 309 under the control of the control device 9, and the control device 9 causes the sensor 700 to start the detection operation.
  • the first rotation holding portion 311 and the mark member 350 and the bottle 8 rotate integrally around the rotation axis 309, and the light emitter 701 emits the measurement light to the irradiation region R1.
  • the sensor 700 detects the mark M1 and outputs the detection result to the control device 9.
  • the control device 9 controls the rotation drive mechanism 500 based on the position in the circumferential direction of the mark M1 detected by the sensor 700. Specifically, the rotation drive mechanism 500 controls the initial rotation position of the first rotation holding unit 311, and thus the bottle, so that printing is not performed on the print-unsuitable area 8a of the bottle 8 under the control of the control device 9. The initial rotation position of 8 is adjusted to stop the rotation of the first rotation holding unit 311.
  • the printing system 100 transfers the blanket 32 of the printing apparatus 101 to the bottle 8 under the control of the control device 9. It is brought into contact with the side surface 80.
  • the motor 33 and the motor 501 rotate synchronously under the control of the control device 9, and the blanket 32 and the bottle 8 rotate in opposite directions to each other. As a result, the ink on the surface of the blanket 32 is transferred to the side surface 80 of the bottle 8.
  • the sensor 700 detects the mark M1 to indirectly detect the position in the circumferential direction of the unsuitable printing area 8a of the bottle 8 and print on the unsuitable printing area 8a.
  • the rotation drive mechanism 500 adjusts the initial rotation position of the bottle 8 based on the detection position of the mark M1 so as not to be performed. Therefore, in the printing process on the side surface 80 of the bottle 8 by the printing apparatus 101, printing on the unsuitable area 8a for printing can be appropriately avoided.
  • the senor 700 does not directly detect the print-unsuitable area 8a of the bottle 8, but indirectly detects it using the mark M1. Therefore, even when it is difficult to directly detect the print-unsuitable area 8a, for example, when the bottle 8 is made of a transparent member, the position of the print-unsuitable area 8a can be easily detected.
  • the mark member 350 is connected to the first rotation holding portion 311 so that the position of the mark M1 in the circumferential direction with respect to the first rotation holding portion 311 can be adjusted. Therefore, even if the position in the circumferential direction of the print-unsuitable region 8a of the bottle 8 with respect to the first rotation holding portion 311 fluctuates due to individual differences due to manufacturing variations of the bottle 8, the operator can position the mark M1 in the circumferential direction. It can be appropriately adjusted according to the position of the unsuitable printing area 8a of the bottle 8. As a result, the position in the circumferential direction of the print-unsuitable area 8a can be indirectly detected with high accuracy.
  • the mark member 350 is provided not in the second rotation holding portion 321 but in the first rotation holding portion 311.
  • the first rotation holding portion 311 holds one end (mouth portion 81) of the bottle 8 and rotates integrally with the bottle 8, whereas the second rotation holding portion 321 holds the bottle 8 in the X direction along the rotation axis 309.
  • the bottom portion 83 of the above is only pressed toward the first rotation holding portion 311 side. Therefore, when the bottle 8 is rotated, the contact surface of the contact member 323 of the second rotation holding portion 321 may slide in the circumferential direction with respect to the bottom portion 83 of the bottle 8. That is, there may be a gap between the rotation of the second rotation holding portion 321 and the rotation of the bottle 8.
  • the mark member 350 is provided not in the first rotation holding portion 311 but in the second rotation holding portion 321.
  • the mark member 350 can rotate integrally with the second rotation holding portion 321, when the contact member 323 of the second rotation holding portion 321 slides in the circumferential direction with respect to the bottom portion 83 of the bottle 8, the mark M1
  • the detected position does not necessarily indicate the position of the print-unsuitable area 8a of the bottle 8. In other words, the detection accuracy of the print unsuitable area 8a is low.
  • the mark member 350 is provided not in the second rotation holding portion 321 but in the first rotation holding portion 311. Therefore, it is possible to indirectly detect the position in the circumferential direction of the print unsuitable region 8a with higher accuracy than when the mark member 350 is provided on the second rotation holding portion 321.
  • the holding member 313 includes a female screw portion 313b that is screwed with the male screw portion 81a of the mouth portion 81 of the bottle 8. According to this, since the holding member 313 can be firmly fixed to the bottle 8, the rotation deviation between the bottle 8 and the first rotation holding portion 311 can be suppressed or avoided. Therefore, the sensor 700 can indirectly detect the position in the circumferential direction of the print-unsuitable region 8a of the bottle 8 with higher accuracy.
  • the lock member 390 is provided.
  • the operator can adjust the position of the mark M1 with respect to the first rotation holding portion 311 in the circumferential direction. ..
  • the rotation deviation between the mark member 350 and the first rotation holding portion 311 can be suppressed or avoided. Therefore, it is possible to indirectly detect the position of the bottle 8 in the circumferential direction of the unsuitable printing area 8a with higher accuracy.
  • FIG. 8 is a perspective view schematically showing another example of the configuration of the mark member 350.
  • the mark member 350 of FIG. 8 is also referred to as a mark member 350A.
  • the mark member 350A includes a ring plate portion 351 and a cylindrical body 352, similarly to the mark member 350.
  • the slit 355 is not formed.
  • the outer peripheral surface of the tubular body 352 has a plurality of regions having different reflectances.
  • the outer peripheral surface of the tubular body 352 has a cylindrical shape centered on the rotation axis 309, and has a first region 352b having a first reflectance and a second reflectance. It has a first region 352b and a second region 352c adjacent to each other in the circumferential direction.
  • the second region 352c is provided in a part in the circumferential direction and functions as the mark M1.
  • the photophore 702 receives the measurement light reflected by the first region 352b.
  • the photophore 702 receives the measurement light reflected by the second region 352c. Since the first reflectance and the second reflectance are different from each other, the light receiving amount of the receiver 702 when the mark M1 passes through the irradiation region R1 is the amount of light received when the mark M1 does not pass through the irradiation region R1. It is different from the amount of light received by the light receiver 702. Therefore, the sensor 700 can detect the mark M1 based on the amount of light received by the light receiver 702.
  • the first region 352b is composed of a low reflective material such as resin.
  • the tubular body 352 itself may be made of a low-reflection material.
  • the second region 352c is made of a highly reflective material such as aluminum.
  • the second reflectance of the second region 352c may be increased by depositing aluminum on the second region 352c of the tubular body 352 of the low reflective material.
  • the tubular body 352 may be formed by combining a member made of a highly reflective material and a member made of a low reflective material. If the difference between the first reflectance and the second reflectance is large as described above, the difference in the amount of light received by the sensor 700 becomes large, so that the mark M1 can be easily detected. The magnitude relationship between the first reflectance and the second reflectance may be opposite.
  • FIG. 9 is a perspective view schematically showing another example of the configuration of the mark member 350.
  • the mark member 350 of FIG. 9 is also referred to as a mark member 350B.
  • the mark member 350B includes a ring plate portion 353 and a hanging member 354.
  • the ring plate portion 353 is penetrated by the first shaft 314, similarly to the ring plate portion 351.
  • the hanging member 354 is a member provided in a part in the circumferential direction, and in the example of FIG. 9, it extends radially outward from the outer peripheral edge of the ring plate portion 353 and bends at the outer peripheral edge of the holding member 313. It extends in the (+ X) direction along the side surface of the holding member 313.
  • the portion of the hanging member 354 extending along the side surface of the holding member 313 has, for example, a plate-like elongated shape.
  • the mark member 350B and the first rotation holding portion 311 are fixed to each other by the set screw 391 as an example of the lock member 390.
  • the hanging member 354 is provided with a screw hole 354a, and the screw hole 354a penetrates the hanging member 354 in the radial direction.
  • the tip of the set screw 391 presses the side surface of the holding member 313.
  • the mark member 350B is fixed to the holding member 313. Further, by loosening the tightening of the set screw 391, the mark member 350B becomes rotatable with respect to the first rotation holding portion 311.
  • a part of this hanging member 354 functions as a mark M1.
  • the light emitter 701 of the sensor 700 is located radially outside the holding member 313, and irradiates the irradiation region R1 on the side surface of the holding member 313 with the measurement light.
  • the irradiation region R1 is set to a region where a part of the hanging member 354 (mark M1) can cross during the rotation of the mark member 350B.
  • the reflectance of the outer surface of the hanging member 354 is different from the reflectance of the side surface of the holding member 313.
  • the side surface of the holding member 313 is made of a low reflective material such as resin
  • the outer surface of the hanging member 354 is made of a high reflective material such as aluminum. Even in such a configuration, the sensor 700 can detect the mark M1.
  • FIG. 10 is a perspective view schematically showing another example of the configuration of the mark member 350.
  • the mark member 350 of FIG. 10 is also referred to as a mark member 350C.
  • the mark member 350C includes a ring plate portion 351 and a tubular body 352.
  • the slit 355 is not formed.
  • the tubular body 352 of the mark member 350C is provided with an inclined surface 352d that reflects the measured light from the light emitter 701 of the sensor 700 in a direction different from the direction toward the receiver 702.
  • the inclined surface 352d passes through the irradiation region R1, the measured light from the light emitter 701 is reflected by the inclined surface 352d and travels in a direction different from the direction toward the receiver 702.
  • the inclined surface 352d is provided in a part in the circumferential direction and functions as a mark M1.
  • a recess is formed at the corner of the boundary between the ring plate portion 351 and the tubular body 352, and the bottom surface of the recess corresponds to the inclined surface 352d.
  • the inclined surface 352d is inclined so as to approach the rotation axis 309 from the outer peripheral surface of the tubular body 352 toward the (-X) direction, and becomes the main surface of the ring plate portion 351 on the (-X) direction side. To reach.
  • an arc surface 352f a region adjacent to the inclined surface 352d in the circumferential direction is called an arc surface 352f.
  • the arcuate surface 352f reflects the measured light toward the receiver 702 when passing through the irradiation region R1. That is, when the mark M1 does not pass through the irradiation region R1, the light receiver 702 receives the measurement light.
  • the inclined surface 352d reflects the measured light in a direction different from the direction toward the receiver 702 when passing through the irradiation region R1. Therefore, when the mark M1 passes through the irradiation region R1, the light receiver 702 hardly receives the measurement light.
  • the sensor 700 can detect the inclined surface 352d (mark M1) based on the amount of light received by the light receiver 702. Moreover, since the inclined surface 352d reflects the measurement light in a direction different from the direction toward the receiver 702, the contrast of the amount of light received by the receiver 702 can be enhanced. Therefore, the sensor 700 can detect the mark M1 more appropriately. Further, it is not necessary to form the mark member 350C with materials having different reflectances, and the mark member 350C can be easily manufactured.
  • the mark member 350 can be easily manufactured (processed).
  • the inclined surface 352d may be formed by the protrusion.
  • the width of the inclined surface 352d in the circumferential direction corresponds to about several degrees or less, and the inclined surface 352d functions as the mark M1.
  • the arc is formed.
  • the surface 352f may function as the mark M1. That is, the arc surface 352f that reflects the measured light from the light emitter 701 toward the light receiver 702 may function as the mark M1.
  • the mark M1 can be formed by a morphological feature such as a protrusion, a recess, or a slit provided in the mark member 350.
  • the mark member 350 is formed with edge side surfaces S1 and S2 that define both ends of the mark M1 in the circumferential direction.
  • the regions located on both sides in the circumferential direction of the surfaces forming the contour of the slit 355 correspond to the edge side surfaces S1 and S2, respectively.
  • the edge side surface S1 is located on the downstream side in the rotation direction with respect to the edge side surface S2.
  • the edge side surface S1 defines the end portion on the downstream side in the rotation direction of the mark M1 (hereinafter referred to as a downstream edge), and the edge side surface S2 defines the end portion on the upstream side in the rotation direction of the mark M1 (hereinafter referred to as an upstream edge). Is specified.
  • the side surfaces on both sides of the hanging member 354 in the circumferential direction correspond to the edge side surfaces S1 and S2, respectively.
  • the side surfaces defining both sides of the concave portion in the circumferential direction correspond to the edge side surfaces S1 and S2, respectively.
  • FIG. 11 is a cross-sectional view schematically showing an example of the mark M1.
  • FIG. 11 shows a cross section orthogonal to the rotation axis 309.
  • the mark M1 is formed by the slit 355.
  • the edge side surfaces S1 and S2 of the mark M1 may be inclined with respect to the measurement light so that the measurement light from the light emitter 701 of the sensor 700 is not directly irradiated.
  • the direct irradiation here means that the measured light from the light emitter 701 is irradiated to the target without reflection.
  • the angle ⁇ 1 formed by the edge side surface S1 and the outer peripheral surface of the tubular body 352 is preferably less than 90 degrees.
  • the angle ⁇ 2 formed by the edge side surface S2 and the outer peripheral surface of the tubular body 352 may be less than 90 degrees. According to this, the measurement light from the light emitter 701 is directly irradiated to the outer peripheral surface of the tubular body 352, but is not directly irradiated to the edge side surfaces S1 and S2.
  • FIG. 12 is a graph schematically showing an example of the relationship between the amount of light received by the light receiver 702 and the rotation position of the first rotation holding unit 311 and the bottle 8.
  • the mark M1 is a slit 355, and the amount of light received decreases in the region corresponding to the mark M1.
  • the amount of received light changes relatively sharply. According to this, the amount of light received by the light receiver 702 changes sharply at both ends in the circumferential direction of the mark M1. Therefore, the sensor 700 can detect the mark M1 with higher accuracy.
  • FIG. 13 is a perspective view for explaining another example of the sensing direction of the sensor 700.
  • the sensor 700 is provided at a position facing the mark member 350 in the X direction along the rotation axis 309. Specifically, the sensor 700 is provided on the radial side of the first shaft 314 and on the (-X) direction side with respect to the mark member 350.
  • the slit 355 functioning as the mark M1 is also formed on the ring plate portion 351.
  • the slit 355 is formed in a part in the circumferential direction and penetrates the ring plate portion 351 in the X direction.
  • the light emitter 701 of the sensor 700 irradiates the measurement light toward the main surface of the ring plate portion 351 on the (-X) direction side. Specifically, the light emitter 701 irradiates a part of the irradiation region R1 on the rotation locus of the slit 355 (mark M1) with the measurement light.
  • the light receiver 702 receives the measurement light reflected from the irradiation region R1. Also with this, the sensor 700 can detect the mark M1.
  • the first shaft 314 exists in the vicinity of the region facing the mark member 350 in the X direction, space is limited in order to install the sensor 700 while avoiding physical interference with the first shaft 314. be.
  • the radial outer side of the mark member 350 it is far from the first shaft 314 and does not physically interfere with the first shaft 314, so that the degree of freedom in installing the sensor 700 is high.
  • FIG. 14 is a diagram showing another example of the configuration of the first rotation holding unit 311.
  • the first rotation holding portion 311 in FIG. 14 is also referred to as a first rotation holding portion 311A.
  • the first rotation holding portion 311A includes the first shaft portion 312A and the holding member 313, and rotatably holds the mouth portion 81, which is one end of the bottle 8, around the rotation axis 309.
  • the first shaft portion 312A includes a split shaft 316 and a flexible coupling 318.
  • the split shaft 316 extends along the rotation axis 309 and is rotatably supported with respect to the first support portion 331. Specifically, the split shaft 316 is fixed to the first support portion 331 via a bearing (not shown). The bearing is not, for example, a self-aligning bearing. The split shaft 316 is rotatable around the axis of rotation 309.
  • the split shaft 316 is connected to the holding member 313 via the flexible coupling 318.
  • the first shaft portion 312A also includes the split shaft 317, and a flexible coupling 318 is provided between the split shaft 316 and the split shaft 317.
  • the split shaft 317 extends along the rotation axis 309 and is arranged substantially in the same position as the axis of the split shaft 316.
  • the split shaft 317 is provided on the (+ X) direction side with respect to the split shaft 316.
  • the flexible coupling 318 connects the end of the split shaft 316 on the (+ X) direction side and the end of the split shaft 317 on the (-X) direction side.
  • the flexible coupling 318 is deformable to allow axial misalignment (eccentricity and declination) between the split shaft 316 and the split shaft 317.
  • the type of the flexible coupling 318 is not particularly limited, but various flexible couplings such as a disc type, a slit type, an oldham type and a bellows type can be adopted.
  • the end of the split shaft 317 on the (+ X) direction side is connected to the main surface of the holding member 313 on the (-X) direction side.
  • Such a first rotation holding portion 311A can also rotatably hold the mouth portion 81, which is one end of the bottle 8, around the rotation axis 309. Further, even if the rotation symmetry axis 800 of the body portion 82 of the bottle 8 deviates from the rotation axis 309 due to the variation in the shape of the mouth portion 81 of the bottle 8, the plurality of backup rollers 370 have the body portions at different positions in the circumferential direction. By pressing and supporting the 82 in the radial direction, the rotation symmetry axis 800 of the body portion 82 is brought closer to the rotation axis 309. Along with this, the holding member 313 may be displaced, but the flexible coupling 318 allows the displacement.
  • the holding member 313 and the split shaft 317 are displaced with respect to the split shaft 316.
  • the first rotation holding portion 311A can rotate integrally with the bottle 8 in a state where the rotation symmetry axis 800 of the body portion 82 is brought close to the rotation axis 309.
  • the mark member 350 is attached to the first rotation holding portion 311A.
  • the mark member 350 is attached to the split shaft 316. That is, the mark member 350 is attached to the first rotation holding portion 311A on the side opposite to the holding member 313 with respect to the flexible coupling 318.
  • the mark member 350 has, for example, a ring shape, and the split shaft 316 is arranged through the hole in the center thereof.
  • the mark member 350 is attached to the split shaft 316 so that the operator can manually rotate the mark member 350 with respect to the split shaft 316.
  • a lock member 390 is also provided.
  • the lock member 390 includes, for example, a set screw 391, and is screwed into a screw hole 350a that penetrates the mark member 350 in the radial direction.
  • the mark member 350 can be fixed to the split shaft 316 by tightening the set screw 391 and pressing the tip of the set screw 391 against the side surface of the split shaft 316.
  • the mark member 350 becomes rotatable with respect to the split shaft 316.
  • the mark member 350 has a mark M1 on its outer peripheral surface.
  • the mark M1 may be formed by morphological features such as protrusions, recesses and slits, or may be formed by one of a plurality of regions having different reflectances formed on the outer peripheral surface of the mark member 350. good.
  • the mark M1 is formed, for example, by a recess.
  • the sensor 700 is provided radially outside the mark member 350 and detects the mark M1.
  • the position of the mark M1 in the circumferential direction is adjusted by the operator. Further, in a state where the operator's external force is not acting, the mark member 350 rotates integrally with the first rotation holding portion 311A. Therefore, by detecting the mark M1 of the mark member 350, the sensor 700 can indirectly detect the position in the circumferential direction of the print-unsuitable area 8a of the bottle 8 held by the first rotation holding unit 311A.
  • the mark member 350 is attached to the split shaft 316 on the side opposite to the holding member 313 with respect to the flexible coupling 318.
  • the split shaft 316 is less likely to be displaced with respect to the rotation axis 309 than the holding member 313 and the split shaft 317. Therefore, the mark M1 orbits along a virtual circle centered on the rotation axis 309.
  • the mark member 350 is connected to the split shaft 317.
  • the split shaft 317 is easily displaced from the rotation axis 309 due to the deformation of the flexible coupling 318. Therefore, the mark M1 of the mark member 350 can orbit along a locus deviated from the virtual circle centered on the rotation axis 309. In this case, the detection accuracy of the circumferential position of the mark M1 is lowered, and the detection accuracy of the circumferential position of the print unsuitable region 8a is lowered.
  • the mark member 350 is attached to the split shaft 316 which is hard to be displaced. Therefore, when the bottle 8 is rotated, the mark M1 can orbit along a virtual circle centered on the rotation axis 309. Therefore, the sensor 700 can detect the position of the mark M1 in the circumferential direction with higher accuracy, and can detect the position of the unsuitable area for printing 8a of the bottle 8 in the circumferential direction with higher accuracy.
  • FIG. 15 is a flowchart showing an example of controlling the rotation speed of the bottle 8.
  • the bottle 8 is attached to the bottle holding device 300 by the operator, the operator instructs the printing system 100 to start printing, and the bottle transporting device 403 moves the bottle holding device 300 to a printing position close to the printing device 101. ing.
  • the rotary drive mechanism 500 is mechanically connected to the power transmission mechanism 380, and the sensor 700 stops at a position where the mark M1 can be detected.
  • the rotation drive mechanism 500 starts the rotation of the bottle 8 (step ST1).
  • the first rotation holding portion 311 and the bottle 8 start to rotate integrally.
  • the control device 9 sets a first value as a target value of the rotation speed of the bottle 8 and controls the rotation drive mechanism 500 according to the target value.
  • the first value is higher than the second value described later, and the bottle 8 rotates at a relatively high rotation speed.
  • control device 9 determines whether or not the sensor 700 has detected the downstream edge on the downstream side in the rotation direction of the mark M1 (step ST2). When the downstream edge has not yet been detected, the control device 9 executes step ST2 again. When the downstream edge is detected, the control device 9 controls the rotation drive mechanism 500 so as to decelerate the bottle 8 (step ST3). For example, the control device 9 sets a second value lower than the first value as the target value of the rotation speed of the bottle 8, and controls the rotation drive mechanism 500 according to the target value. As a result, the rotation speed of the bottle 8 decreases.
  • the control device 9 determines whether or not the sensor 700 has detected the upstream edge on the upstream side in the rotation direction of the mark M1 (step ST4). When the upstream edge has not yet been detected, the control device 9 executes step ST4 again.
  • the control device 9 adjusts the initial rotation position of the bottle 8 based on the position in the circumferential direction of the upstream edge. For example, the control device 9 may adjust the initial rotation position of the bottle 8 by stopping the rotation of the bottle 8 when the upstream edge is detected. In this case, the control device 9 may output a rotation stop instruction to the motor 501 in response to the detection of the upstream edge. Since the rotation speed when the stop instruction is received is low, the motor 501 can be stopped more quickly, and the rotation position of the bottle 8 can be adjusted with higher accuracy.
  • the rotation speed is controlled at a high target value (first value) until the downstream edge of the mark M1 is detected, and at a low target value (second value) when the downstream edge of the mark M1 is detected.
  • the rotation speed is controlled.
  • the upstream edge is detected at this low rotation speed. Therefore, the upstream edge of the mark M1 can be detected more quickly than when the rotation speed is always controlled with a low target value, but the rotation speed is low when the upstream edge is detected, so that the rotation speed is high.
  • the upstream edge can be detected. Therefore, the initial rotation position of the bottle 8 can be adjusted with higher position accuracy. Further, since the stop of the bottle 8 can be controlled in a state where the rotation speed is low, the bottle 8 can be stopped with higher position accuracy.
  • the rotation position adjusting device 600 and the printing system 100 have been described in detail, but the above description is exemplary in all aspects, and the rotation position adjusting device 600 and the printing system 100 are limited thereto. It is not something that will be done. It is understood that a myriad of variants not illustrated can be envisioned without departing from the scope of this disclosure. The configurations described in the above embodiments and the modifications can be appropriately combined or omitted as long as they do not conflict with each other.
  • the rotation drive mechanism 500 is configured to rotate the first rotation holding portion 311 to rotate the bottle 8 at the time of printing, but the clutch of the power transmission mechanism 380 is set to the OFF state. , The bottle 8 may be driven to rotate with respect to the blanket 32.
  • the stage 11 moves the plate 12 and the bottle holding device 300 moves the bottle 8 with respect to the fixed blanket roll 30, so that they are positioned with each other in the printing process.
  • these movements need only be realized relatively, and which device is movable is not limited to the above and is arbitrary.
  • the print-unsuitable area 8a is a connection mark formed on the bottle 8, but is not necessarily limited to this.
  • the unevenness may be adopted as the unsuitable area for printing 8a.
  • the second holding unit 320 is not an essential requirement, and the second holding unit 320 may be omitted.
  • the printing method is not limited, and may be electronic photography, offset printing, gravure printing, flexographic printing, inkjet printing, or the like.
  • Printing system 101 Printing device 311 1st rotation holding part 312 Shaft part 313 Holding member 313b Female thread part 316 Shaft (split shaft) 318 Flexible coupling 320 2nd rotation holding part 350, 350A-350C Mark member 352d 2nd surface (inclined surface) 352f First surface (arc surface) 355 Slit 309 Rotating axis 390 Lock member 403 Transfer device (bottle transfer device) 500 Rotation drive mechanism 700 Sensor 701 Light emitter 702 Receiver 600 Rotation position adjustment device 8 Target (bottle) 81 One end of the target (mouth) 81a Male threaded part 83 The other end (bottom) of the target M1 mark R1 irradiation area S1, S2 edge side surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)
  • Rotary Presses (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

Dispositif de réglage de position de rotation (600) comprenant une première section de maintien de rotation (311), un élément repère (350), un capteur (700) et un mécanisme d'entraînement en rotation (500). L'élément repère (350) comprend un repère (M1) disposé au niveau d'une partie d'une direction circonférentielle autour d'un axe de rotation (309), et est fixé à la première section de maintien de rotation (311) de sorte que la position du repère (M1) par rapport à la première section de maintien de rotation (311) dans la direction circonférentielle puisse être réglée par un opérateur, et l'élément repère (350) tourne d'un seul tenant avec la première section de maintien de rotation (311) lorsqu'un opérateur n'exerce aucune force externe sur l'élément repère (350). Le capteur (700) détecte le repère (M1). Le mécanisme d'entraînement en rotation (500) règle la position de rotation de la première section de maintien de rotation (311) sur la base de la position du repère (M1) dans la direction circonférentielle détectée par le capteur (700).
PCT/JP2021/019558 2020-08-27 2021-05-24 Dispositif de réglage de position de rotation et système d'impression WO2022044455A1 (fr)

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JP2020143347A JP2022038714A (ja) 2020-08-27 2020-08-27 回転位置調整装置および印刷システム
JP2020-143347 2020-08-27

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55146237U (fr) * 1979-04-07 1980-10-21
JPH07214887A (ja) * 1991-10-01 1995-08-15 Werner Kammann Mas Fab Gmbh 物品の円錐表面に印刷を施す方法及び装置
WO2005025873A2 (fr) * 2003-09-17 2005-03-24 Jemtex Ink Jet Printing Ltd. Procede et appareil d'impression d'informations selectionnees sur des bouteilles
JP2020029022A (ja) * 2018-08-22 2020-02-27 株式会社Ｓｃｒｅｅｎホールディングス 印刷方法および印刷装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015525689A (ja) * 2012-07-10 2015-09-07 アムコー リミテッドＡｍｃｏｒ Ｌｉｍｉｔｅｄ 印刷装置、印刷方法及び印刷用の一組の版
JP7181066B2 (ja) * 2018-11-29 2022-11-30 株式会社Ｓｃｒｅｅｎホールディングス ワーク保持装置、印刷システムおよび印刷方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55146237U (fr) * 1979-04-07 1980-10-21
JPH07214887A (ja) * 1991-10-01 1995-08-15 Werner Kammann Mas Fab Gmbh 物品の円錐表面に印刷を施す方法及び装置
WO2005025873A2 (fr) * 2003-09-17 2005-03-24 Jemtex Ink Jet Printing Ltd. Procede et appareil d'impression d'informations selectionnees sur des bouteilles
JP2020029022A (ja) * 2018-08-22 2020-02-27 株式会社Ｓｃｒｅｅｎホールディングス 印刷方法および印刷装置

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