WO2016152360A1 - 版胴 - Google Patents
版胴 Download PDFInfo
- Publication number
- WO2016152360A1 WO2016152360A1 PCT/JP2016/055197 JP2016055197W WO2016152360A1 WO 2016152360 A1 WO2016152360 A1 WO 2016152360A1 JP 2016055197 W JP2016055197 W JP 2016055197W WO 2016152360 A1 WO2016152360 A1 WO 2016152360A1
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- WO
- WIPO (PCT)
- Prior art keywords
- plate
- plate cylinder
- printing
- printing plate
- cylinder
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/10—Forme cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/005—Attaching and registering printing formes to supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/06—Devices for attaching printing elements or formes to supports for attaching printing elements to forme cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
- B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
- B41F27/1206—Feeding to or removing from the forme cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
- B41F27/1212—Devices for attaching printing elements or formes to supports for attaching flexible printing formes using pneumatic force
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
- B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
- B41P2227/21—Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press
Definitions
- the present invention relates to a plate cylinder on which a printing plate used for printing a metal, particularly an aluminum or aluminum alloy can body is mounted.
- a plate mounting apparatus that includes a plate cylinder that is formed in a cylindrical shape and is fixed to a plate driving shaft, and in which a printing plate formed in a cylindrical shape is attached to the outer peripheral surface from the front end side.
- Patent Document 1 there is a recess having a rectangular shape that is long in the axial direction over the majority of the axial length of the plate cylinder, and there is no plate portion of the plate mounted on the plate cylinder portion.
- a plate cylinder provided with a plate fixing member that pushes a portion from a radially inner side to a radially outer side to firmly fix the plate to a plate mounting surface of a plate cylinder portion.
- the plate fixing member fits almost without gaps in the circumferential direction and the axial direction of the recess, and is formed to move in the radial direction along both the circumferential side walls and the axial end walls of the recess.
- an object of the present invention is to provide a plate cylinder in which a printing plate can be easily mounted and strength is improved.
- the present invention has the configurations described in [1] to [7] below.
- a plate cylinder that is attached to a plate drive shaft that is driven to rotate, and on which a printing plate formed in a cylindrical shape is mounted from the front end side,
- a plate cylinder body having a plate mounting surface on which the printing plate is mounted;
- a flat portion formed with a flat surface located radially inward of the plate mounting surface;
- a plurality of holes formed side by side in a state of being spaced apart in the axial direction at the flat part;
- a plurality of plate fixing members for tightly fixing the printing plate to the plate mounting surface; With The plate cylinder, wherein the plate fixing member is fitted in the hole and is provided so as to be movable inward and outward in the radial direction of the plate cylinder.
- the plate cylinder main body includes an air ejection hole at a position spaced 20 mm to 50 mm away from the front end side, 5.
- the plate cylinder as described in any one of 1 to 4 above, wherein the surface roughness Ra is set to 0.025 ⁇ m to 0.5 ⁇ m.
- the printing plate is attached to the rotationally driven plate driving shaft and the printing plate formed in a cylindrical shape is mounted from the front end side, and the printing plate is mounted.
- a plate cylinder body having a plate mounting surface, a flat portion formed with a flat surface located radially inward of the plate mounting surface, and a plurality of portions formed side by side in a state of being spaced apart in the axial direction at the flat portion. Since it includes a hole and a plurality of plate fixing members that tightly fix the printing plate to the plate mounting surface, the plate fixing member is fitted into the hole and is provided so as to be movable inward and outward in the radial direction of the plate cylinder.
- the plate fixing member is formed such that the outer peripheral surface thereof is movable in the range inside the inner surface of the printing plate mounted on the plate mounting surface.
- the plate fixing member is configured to be fixable at an arbitrary position within the range inside the inner surface of the printing plate mounted on the plate mounting surface. Since the fixing position of the printing plate can be adjusted, the printing plate can be attached and detached while fixing the plate fixing member at an arbitrary position.
- the weight of the plate cylinder can be reduced and the thickness of the plate cylinder is set thin. Even in this case, the strength of the plate cylinder is not impaired.
- the plate cylinder body is provided with air ejection holes at a position spaced 20 mm to 50 mm away from the front end side, and the surface roughness Ra is set to 0.025 ⁇ m to 0.5 ⁇ m. Therefore, the plate cylinder body has an appropriate surface roughness, and the air ejection hole is provided on the tip side of the plate cylinder body, which is the side into which the printing plate is inserted, that is, at a position where the printing plate can be easily inserted, By ejecting air from the air ejection holes, an air layer can be formed between the plate cylinder main body and the printing plate, and the printing plate to be inserted or removed can be easily slid, and the detachment work can be performed. It becomes easy.
- FIG. 1 is an overall perspective view of a plate cylinder of the present invention. It is explanatory drawing for demonstrating the plate cylinder and printing plate of this invention. It is the front view and sectional drawing for demonstrating the plate cylinder of this invention. It is explanatory drawing for demonstrating the plate cylinder of this invention. It is the front view and sectional drawing for demonstrating the behavior of the plate fixing member of the plate cylinder of this invention. It is a longitudinal cross-sectional view for demonstrating the behavior of the plate fixing member of the plate cylinder of this invention. It is a detailed view for explaining the behavior of the plate fixing member of the plate cylinder of the present invention.
- FIG. 1 is an overall perspective view of the plate cylinder 1
- FIG. 2 is an explanatory view for explaining the plate cylinder 1 and the printing plate 2
- FIG. 3 is a front view and a cross-sectional view for explaining the plate cylinder 1
- 4 is an explanatory diagram for explaining the plate cylinder 1
- FIG. 5 is a front view and a cross-sectional view for explaining the behavior of the plate fixing member 15 of the plate cylinder 1
- FIG. 7 is a detailed cross-sectional view for explaining the behavior of the plate fixing member 15 of the plate cylinder 1.
- a plate mounting apparatus including a plate cylinder 1 on which a cylindrical printing plate 2 for printing a metal can body is mounted will be described with reference to FIGS.
- the plate mounting device is provided in common with a printing machine that prints on a printing object and an engraving machine that engraves a printing pattern on a printing plate 2 used in the printing machine.
- a printing plate 2 formed in a cylindrical shape, particularly a printing plate 2 having a small diameter is used as the printing plate 2 mounted on the plate cylinder 1.
- the printed material to be printed is a beverage metal can, and in particular, a bottomed cylindrical beverage metal can formed by drawing and ironing (DI) molding a flat plate made of aluminum or an aluminum alloy is suitably printed.
- DI drawing and ironing
- the plate mounting device includes a plate drive shaft 100 provided so as to protrude forward from the machine frame of the printing press, and a plate cylinder 1 fixed to the outer peripheral surface of the plate drive shaft 100.
- the base end side of the plate driving shaft 100 is rotatably supported by the machine frame of the printing press, and is rotated at a predetermined speed in a predetermined direction by a known driving means.
- the left side in the axial direction of the plate driving shaft 100 of the plate cylinder 1 shown in FIG. 1 is the front surface or the front end
- the right side in the axial direction of the plate driving shaft 100 is the rear surface or the rear end.
- the plate cylinder 1 is fitted from the front end side of the plate drive shaft 100 and fixed to the outer peripheral surface thereof.
- the plate cylinder 1 is formed in a cylindrical shape, and an insertion hole 121 through which the plate drive shaft 100 is inserted is provided at the center of the cylindrical shape.
- a cylindrical plate mounting surface 111 concentric with the plate driving shaft 100 is formed on the outer periphery of the plate cylinder 1, and the printing plate 2 formed in a cylindrical shape is detachably attached to the plate mounting surface 111. It is done.
- the plate cylinder 1 is fixed to the plate drive shaft 100 in a state where the plate drive shaft 100 is fitted in the insertion hole 121 and rotates integrally with the plate drive shaft 100.
- the plate mounting surface 111 desirably maintains static friction with a surface roughness of Ra 1 ⁇ m or less in order to secure a fixing force due to frictional resistance with the inner surface of the mounted printing plate 2.
- the plate mounting surface 111 is preferably hard chrome coated (plated).
- Ra is preferably set to 0.025 ⁇ m to 0.5 ⁇ m, and more preferably Ra is set to 0.05 ⁇ m to 0.2 ⁇ m.
- the plate cylinder body 11 is provided with an air ejection hole 18 at a position 20 mm to 50 mm away from the front end side, and the surface roughness Ra is set to 0.025 ⁇ m to 0.5 ⁇ m.
- the air ejection hole 18 is provided at the front end side of the plate cylinder main body 11, which is the side into which the printing plate 2 is inserted, that is, the position where the printing plate 2 can be easily inserted. Since air is ejected from the plate 18, an air layer can be formed between the plate cylinder main body 11 and the printing plate 2, and the printing plate 2 to be inserted or removed can be easily slid and attached / detached. It becomes easy.
- the plate cylinder 1 is provided with a flat portion 13 formed by removing a part of the cylindrical portion and forming a flat surface as a plate fixing member mounting surface (see FIG. 1), and the outer periphery of the cylindrical portion is flat.
- a portion excluding the portion 13 is a plate mounting surface 111 on which the printing plate 2 is mounted.
- the thickness dimension of the flat portion 13 is formed by cutting a part of the outer peripheral surface of the plate cylinder 11, the thickness dimension of the flat portion 13 is the plate where the plate mounting surface 111 is provided. It is set to be thinner than the thickness dimension of the body 1.
- the flat portion 13 is configured to be positioned radially inward of the cylindrical surface including the plate mounting surface 111, and will be described in detail later.
- the plate A substantially square plate fixing member 15 configured to be movable inward and outward in the radial direction is provided on the outer peripheral surface of the cylinder 1.
- the outer diameter of the plate mounting surface 111 is set to be approximately the same as the inner diameter of the printing plate 2. However, since the plate cylinder 1 has the flat portion 13, it is flat with the plate mounting surface 111. The total circumference of the portions 13 is shorter than the circumference of the cylindrical surface formed by the plate mounting surface 111 of the plate cylinder 1.
- the peripheral length of the inner peripheral surface of the printing plate 2 is slightly larger than the total peripheral length of the plate mounting surface 111 and the flat portion 13 of the plate cylinder 1, and is a cylindrical surface formed by the plate mounting surface 111 of the plate cylinder 1.
- the dimension is set slightly smaller than the circumference.
- holes 14 formed in a substantially rectangular shape that is the same shape as the plate fixing member 15 are formed side by side in the axial direction of the plate cylinder 1.
- a positioning protrusion 17 capable of positioning the printing plate 2 in the circumferential direction is provided below the rear end portion of the plate cylinder 1.
- the positioning protrusion 17 protrudes slightly outward in the radial direction of the plate cylinder 1, for example, and is formed as a substantially circular protrusion in plan view.
- the positioning protrusion 17 is formed by the positioning notch 24 provided on the rear end side of the printing plate 2. 17 is configured to engage.
- the printing plate 2 can be accurately and easily attached to a predetermined position of the plate cylinder 1.
- the printing plate 2 mounted on the plate cylinder 1 includes a plate body 21 formed in a cylindrical shape with an elastic material, and a plate portion 22 formed on a part of the outer peripheral portion of the plate body 21.
- the plate body 21 is formed into the printing plate 2 by rounding an elastic material sheet into a cylindrical shape and joining the overlapped both ends.
- joining by welding is most preferable, but there is no particular limitation as long as an adhesion method that does not easily peel off is adopted.
- the plate portion 22 is provided at a predetermined location on the outer peripheral surface of the plate main body 21 excluding the joint portion 23, and is an outer surface portion of the plate main body 21 that is in close contact with the plate mounting surface 111 when the printing plate 2 is mounted on the plate cylinder 1. Is formed.
- only one plate portion 22 is provided on the outer peripheral surface of the plate main body 21.
- the elastic material sheet is made of a rectangular elastic material sheet such as an appropriate magnetic or nonmagnetic metal.
- a commercially available tin plate (Fe) is adopted, and the thickness of the sheet can be formed in a cylindrical shape. In this example, the thickness is about 0.26 mm.
- the plate main body 21 is formed with a resin layer to be the plate portion 22 on one side thereof.
- a resin layer for example, a resin such as polyvinyl alcohol, vinyl ester, or polyamide can be used.
- a hardness of about D20 to 80 after curing is preferable.
- UV curable resin ultraviolet curable resin
- curable resin for normal offset printing, it does not require complicated cleaning work with other solvents such as curable resin or high-pressure steam. It can be performed.
- the thickness of the resin layer is sufficient as long as it is necessary for the printing plate portion 22.
- a layer having a thickness of 0.4 mm to 0.6 mm is bonded to one side of the elastic material sheet.
- the printing plate 2 formed in a cylindrical shape is mounted on the plate mounting surface 111 which is the outer peripheral surface of the plate cylinder 1 by being fitted from the front end side of the plate cylinder 1.
- the plate portion 22 of the printing plate 2 is formed on the outer surface portion of the plate body 21 that is in close contact with the plate mounting surface 111 when the printing plate 2 is mounted on the plate cylinder 1.
- the axial length dimension of the formed printing plate 2 is set to be shorter than the axial length dimension of the plate cylinder 1.
- the printing plate 2 has a positioning notch 24 at one end in the longitudinal direction, specifically, a portion corresponding to a lower end on the rear end side when mounted on the plate mounting surface 111 of the plate cylinder 1. Is formed.
- the positioning notch 24 is formed with a notch extending in the axial direction of the printing plate 2 and is engaged with the positioning projection 17 of the plate cylinder 1.
- the rear end portion (recessed portion) of the positioning notch 24 is formed in an arc shape having a curvature that matches the outer peripheral shape of the circumferential positioning projection 17.
- the positioning notch portion 24 comes into contact with the outer peripheral surface of the positioning projection 17 by the end portion of the positioning notch portion 24. Positioning in the circumferential direction of the printing plate 2 and the axial direction of the plate cylinder 1 can be performed.
- the printing plate 2 in which the circumferential direction and the axial direction of the plate cylinder 1 are positioned with respect to the plate cylinder 1 is provided in order to prevent displacement of the printing plate 2 caused by the rotation operation of the plate cylinder 1.
- the position is fixed by one plate fixing member 15.
- the hole portion 14 formed in the flat portion 13 of the plate cylinder 1 is a hole penetrating the flat portion 13 and is formed, for example, in a square shape in plan view.
- the plurality of hole portions 14 are formed side by side in the axial direction of the plate cylinder 1 and are arranged in a state of being separated from each other.
- the two hole portions 14 are formed in a line in the axial direction of the plate cylinder 1.
- the thickness dimension of the flat portion 13 is set to be thinner than the other thickness dimensions of the plate cylinder 1, the strength of the peripheral flat portion 13 provided with the hole portion 14 can be ensured. More important.
- the hole portion 14 is set to be approximately the same as the size of the plate fixing member 15, and is configured such that the plate fixing member 15 is fitted and the plate fixing member 15 is movable in the radial direction of the plate cylinder 1 within the hole portion 14. Is done.
- the length and width of the hole 14 are slightly larger than the dimensions of the plate fixing member 15, and the plate fixing member 15 fitted in the hole 14 can be moved up and down inside the hole 14 without any trouble.
- the dimensions are set.
- the hole 14 is formed with an engagement groove 141 extending in the axial direction on the back side thereof, that is, on the inner surface of the plate cylinder 1.
- the engagement groove 141 is provided as a retaining mechanism when the plate fixing member 15 is moved radially outward of the plate cylinder 1, and an engagement step portion 153 of the plate fixing member 15 described later is formed in the engagement groove 141. It is designed to engage.
- the plate fixing member 15 is formed in a substantially rectangular shape that is long in the axial direction of the plate cylinder 1, and a plurality of plate fixing members 15 are provided on the flat portion 13 on the same axis as the plate cylinder 1.
- two plate fixing members 15 are provided side by side in a row in the axial direction.
- the plate fixing member 15 is configured to be fitted into the hole 14 from the inside of the plate cylinder 1, and the end surface of the plate fixing member 15 on the radially outer side of the plate cylinder 1 is moved to the radially outer side of the plate cylinder 1. It is comprised so that it may contact
- a plate contact surface 152 the end surface on the radially outer side of the plate fixing member 15 that contacts the inner peripheral surface of the printing plate 2 is referred to as a plate contact surface 152.
- the plate contact surface 152 is formed of a cylindrical surface having the same curvature as or substantially the same curvature as the plate mounting surface 111, and the cylinder formed by the plate mounting surface 111 when moved most radially outward of the plate cylinder 1. It is comprised so that it may not exceed the surface position P (the broken-line part shown in FIG. 7).
- the plate contact surface 152 is a cylinder having the same or similar curvature as the plate mounting surface 111 because there is no possibility that the printing plate 2 is deformed when contacting the inner peripheral surface of the printing plate 2. Although it is preferably formed by a surface, it may be formed by a surface parallel to the flat portion 13.
- the inside of the plate fixing member 15 is hollowed and formed, for example, and a hole 151 is formed at the center of the plate abutting surface 152 of the plate fixing member 15. This further contributes to weight reduction.
- the weight of the plate cylinder 1 can be reduced, and even if the thickness of the plate cylinder 1 is set to be thin, the plate cylinder 1 The strength of 1 is not impaired.
- the plate fixing member 15 is provided with an engaging step portion 153 formed to protrude outward at the lower part of both side surfaces in the longitudinal direction.
- the engagement step portion 153 is formed so that the plate fixing member 15 does not come out to the outside in the radial direction of the plate cylinder 1 when the plate fixing member 15 moves in the hole portion 14.
- the stepped upper surface 153 a of the engaging stepped portion 153 is configured as a retaining portion for the plate fixing member 15 by engaging with an engaging groove 141 provided on the inner surface of the flat surface of the plate cylinder 1.
- the engagement step portion 153 is formed in a rectangular shape on a part of the lower part of the both sides in the longitudinal direction of the plate fixing member 15, a part of the front side, and a part of the rear side, and is provided integrally therewith.
- the plate fixing member 15 is provided with a cam contact groove 154 formed with a U-shaped groove formed by cutting out a part of the bottom of the lateral side surface except for the longitudinal side surface.
- the plate fixing member 15 is configured so that a part of the printing plate 2 mounted on the plate cylinder 1 has a diameter from the inner side in the radial direction within the range of the inside of the cylindrical surface formed by the outer surface including the plate portion 22 of the printing plate 2. The diameter is increased by pushing outward in the direction.
- An operation unit 16 for adjusting the protruding amount of the plate fixing member 15 is provided on the front side of the lid 12.
- the operation unit 16 includes a lock unit 162 provided on the front surface of the cover unit 12, a spacer 163 provided between the lock unit 162 and the cover unit 12, and a circular shape formed at the center of the lock unit 162 and the spacer 163.
- a rotating shaft 164 inserted into the hole and fixedly attached thereto.
- the lock part 162 is made of a plate-like member having an appropriate thickness, and has an operation allowable hole 162a that is a hole penetrating in the thickness direction.
- the operation allowable hole 162a is provided on the outer periphery of the rotating shaft 164 when the lock portion 162 is viewed from the front side, and is formed as a long hole along a part of the outer periphery circle of the lock portion 162.
- the operation permissible hole 162a is set to be disposed at a lower position when the plate fixing member 15 is set at the lowest position (see FIG. 6).
- the rotation of the lock part 162 is restricted by the operation allowable hole 162a and the fixing member 162b, and in this example, the lock part 162 is configured to be rotatable in a range of about 180 degrees.
- the lock portion 162 is configured to rotate within the range of the operation allowable hole 162a according to the rotation operation of the rotation shaft 164, and the lid portion 12 and the spacer 163 are inserted with the rotation shaft 164 via a bearing member or the like. These are configured so that they do not move even when the rotation shaft 164 is rotated.
- the spacer 163 is formed, for example, in a shape in which a part of the outer periphery of a perfect circle is cut out in a front view, and is fixedly attached to the lid portion 12.
- a rotary shaft 164 configured to be rotatable in the axial direction of the plate cylinder 1 is provided below the plate fixing member 15, and the plate fixing member 15 is rotated by rotating the rotary shaft 164.
- the position of the body 1 can be moved inward and outward in the radial direction.
- the rotation shaft 164 is provided so as to extend in the axial direction of the plate cylinder 1, the rear end side of the rotation shaft 164 is rotatably supported on the rear end side of the plate cylinder 1, and the front end side of the rotation shaft 164 is a lid portion of the plate cylinder 1. 12 is configured to penetrate through.
- the tip of the rotating shaft 164 protruding forward of the lid portion 12 is gripped, and serves as a handle portion 161 for rotating the rotating shaft 164.
- the grip portion 161 shown in the figure is a rectangular shaft extending in the axial direction of the plate cylinder 1, but may be a cylindrical shaft, for example, and does not hinder the operation of the operation portion 16. As long as the shape is not particularly limited.
- the rotating shaft 164 is provided with a plurality of eccentric cams 165 fixed at predetermined intervals in the axial direction of the outer peripheral surface thereof.
- the eccentric cam 165 is a cylindrical member formed in a perfect circle shape and having an appropriate thickness in the axial direction of the plate cylinder 1, and is attached at a position slightly deviated from the center position of the rotating shaft 164. It has been.
- the eccentric cam 165 is arranged below the lower cam contact groove 154 of the plate fixing member 15, and a part of the eccentric cam 165, in this example, the upper end of the eccentric cam 165 is the cam contact of the plate fixing member 15. It arrange
- the eccentric cam 165 is provided with a rotation shaft 164 at a position displaced from the center, and is configured such that the position of the upper end varies according to the rotation of the rotation shaft 164. This contributes to the movement of the plate fixing member 15.
- the plate fixing member 15 is movable in a range in which the outer peripheral surface (plate contact surface 152) is inside the inner surface of the printing plate 2 mounted on the plate mounting surface 111 in accordance with the rotation operation of the rotation shaft 164. It is set so that it can be fixed at a predetermined position within the range.
- the plate fixing member 15 is configured to be movable in the radial direction of the plate cylinder 1 inside the plate cylinder 1.
- the circumferential length of the inner circumferential surface of the printing plate 2 is slightly larger than the total circumferential length of the plate mounting surface 111 and the flat portion 13, and the cylindrical surface formed by the plate mounting surface 111 of the plate cylinder 1. Therefore, the printing plate 2 can be easily inserted into the plate cylinder 1, and the portion pressed by the plate fixing member 15 is the other size of the printing plate 2. The situation of projecting radially outward from the part can be avoided.
- the plate fixing member 15 is formed such that its outer peripheral surface is movable in a range inside the inner surface of the printing plate 2 mounted on the plate mounting surface 111, so that the plate fixing member 15 attaches the printing plate 2 to the plate mounting surface. By pushing outward from the inner surface of the printing plate 2 mounted on the printing plate 111, there is no possibility that the printing plate 2 is deformed.
- the plate fixing member 15 is configured to be fixable at an arbitrary position within a range inside the inner surface of the printing plate 2 mounted on the plate mounting surface 111, the fixing position of the plate fixing member 15 can be adjusted.
- the printing plate 2 can be attached and detached by fixing the plate fixing member 15 at an arbitrary position.
- the plate cylinder 1 is formed with air ejection holes 18 at a plurality of locations on the outer peripheral surface on the tip side.
- the air ejection holes 18 are formed to have a diameter of 1.2 mm, and a total of six air ejection holes 18 are uniformly arranged in the circumferential direction on the front end side of the plate cylinder 1.
- Each air ejection hole 18 is configured such that air supplied from an air supply means (not shown) provided inside the plate cylinder 1 is ejected outward.
- the air ejected from the air ejection hole 18 is ejected from the air ejection hole 18 with an air pressure of 4 kgf / cm 2 to 5 kgf / cm 2 , and the valve of the air supply means is attached when the printing plate 2 is attached or detached. Supply and stop by manually opening and closing.
- the air layer formed between the plate cylinder 1 and the printing plate 2 will not be uniform, and printing will be performed. Since it becomes difficult to attach and detach the printing plate 2, it is not preferable, and when the number of the air ejection holes 18 is too large, the processing becomes complicated and costs increase.
- the air ejection hole 18 is preferably provided at a position separated from the tip by 20 mm to 50 mm, and more preferably provided at a position separated from the tip by 30 mm to 40 mm.
- the size and shape of the air ejection hole 18 may be set so that air is uniformly ejected between the plate cylinder 1 and the printing plate 2 and an air layer is uniformly formed.
- the position where the air ejection hole 18 is provided is too far from the front end portion of the plate cylinder 1, the position until the air ejection hole 18 is provided when the printing plate 2 is inserted into the plate cylinder 1. This is not preferable because it is difficult to insert the printing plate 2.
- a plurality of air ejection holes 18 are provided in the circumferential direction on the front end side of the plate cylinder main body 11, a plurality of air ejection holes 18 are provided on the front end side of the plate cylinder main body 11 that is the side into which the printing plate 2 is inserted. Accordingly, when the printing plate 2 is attached / detached, the printing plate 2 inserted or removed by the air blown out from a plurality of locations can be slid more easily, and the attaching / detaching operation is facilitated.
- the procedure for attaching and detaching the printing plate 2 to the plate cylinder 1 is as follows.
- the valve of the air supply means Before mounting the printing plate 2 formed in a cylindrical shape from the front end side of the plate cylinder 1, the valve of the air supply means is opened, and from the air ejection hole 18 provided on the front end side of the plate cylinder 1, For example, air is ejected at an air pressure of 4 kgf / cm 2 to 5 kgf / cm 2 .
- the printing plate 2 is inserted from the front end side of the plate cylinder 1 in a state where air is ejected from the air ejection hole 18.
- the printing plate 2 By forming an air layer between the plate cylinder 1 and the printing plate 2, the printing plate 2 can be easily attached and detached.
- the air supply valve is closed to stop the air supply.
- the air supply means valve is opened before air is ejected from the air ejection hole 18 before removal.
- an air layer is uniformly formed between the plate cylinder 1 and the printing plate 2 at the time of removal, so that the printing plate 2 can be easily removed.
- the air supply means is closed to stop the air supply.
- the hole portion 14 has been described as a hole that penetrates the flat portion 13, but the hole portion 14 is not limited to this, and a recess that does not penetrate the flat portion 13 may be formed. It suffices if the plate fixing member 15 is configured to be movable inward and outward in the radial direction in the portion 14.
- the printing plate 2 When the printing plate 2 is attached to or detached from the plate cylinder 1 as described above, according to the method for attaching or detaching the printing plate 2 by ejecting air from the air ejection holes 18, the printing cylinder 1 is attached.
- the air ejected from the air ejection hole 18 is interposed between the outer peripheral surface of the printing plate 2 and the inner peripheral surface of the printing plate 2, the printing plate 2 can be easily attached and detached.
- the printing plate 2 that is attached to the rotationally driven plate driving shaft 100 and is formed in a cylindrical shape is mounted from the front end side, and the printing plate 2 is mounted.
- the plate cylinder main body 11 having the plate mounting surface 111, the flat portion 13 formed with a flat surface located radially inward of the plate mounting surface 111, and the flat portion 13 formed side by side in a state of being separated in the axial direction.
- a plurality of plate fixing members 15 for tightly fixing the printing plate 2 to the plate mounting surface 111.
- the plate fixing member 15 is fitted into the hole 14 and the plate cylinder 1 Since it is provided so as to be movable inward and outward in the radial direction, the flat portion 13 of the plate cylinder 1 is provided by providing a portion connected between the adjacent hole portions 14 by the configuration in which the plurality of hole portions 14 are provided apart from each other. In addition to improving the strength of the printing plate It can be easily fixed to the plate mounting surface 111.
- the present invention is used as a plate cylinder on which a printing plate for printing a metal can body is mounted.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
Description
前記印刷用版が装着される版装着面を有する版胴本体と、
前記版装着面よりも径方向内側に位置する平坦な面が形成された平坦部と、
前記平坦部で軸方向に離間した状態で並んで形成された複数の穴部と、
前記印刷用版を前記版装着面に密着固定させる複数の版固定部材と、
を備え、
前記版固定部材は、前記穴部に嵌め込まれ、前記版胴の径方向内外へ移動可能に設けられることを特徴とする版胴。
表面粗度Raが0.025μm~0.5μmに設定されることを特徴とする前項1~4のいずれかに記載の版胴。
前記空気噴出用孔から空気を噴出させて前記印刷用版を着脱することを特徴とする印刷用版の着脱方法。
2…印刷用版
11…版胴本体
12…蓋部
13…平坦部
14…穴部
15…版固定部材
18…空気噴出用孔
100…版駆動軸
Claims (7)
- 回転駆動する版駆動軸に取り付けられ、円筒状に形成された印刷用版が先端側から装着される版胴であって、
前記印刷用版が装着される版装着面を有する版胴本体と、
前記版装着面よりも径方向内側に位置する平坦な面が形成された平坦部と、
前記平坦部で軸方向に離間した状態で並んで形成された複数の穴部と、
前記印刷用版を前記版装着面に密着固定させる複数の版固定部材と、
を備え、
前記版固定部材は、前記穴部に嵌め込まれ、前記版胴の径方向内外へ移動可能に設けられることを特徴とする版胴。 - 前記版固定部材は、その外周面が前記版装着面に装着された前記印刷用版の内面より内側の範囲で移動可能に形成されることを特徴とする請求項1に記載の版胴。
- 前記版固定部材は、前記版装着面に装着された前記印刷用版の内面より内側の範囲内の任意の位置で固定可能に構成されることを特徴とする請求項1または2に記載の版胴。
- 前記版胴は、その内部が中空状に形成されることを特徴とする請求項1~3のいずれかに記載の版胴。
- 前記版胴本体は、先端側から20mm~50mm離間した位置に空気噴出用孔を備え、
表面粗度Raが0.025μm~0.5μmに設定されることを特徴とする請求項1~4のいずれかに記載の版胴。 - 前記空気噴出用孔は、前記版胴本体の先端側で周方向に複数設けられることを特徴とする請求項5に記載の版胴。
- 請求項5または6に記載の前記版胴に着脱される印刷用版の着脱方法であって、
前記空気噴出用孔から空気を噴出させて前記印刷用版を着脱することを特徴とする印刷用版の着脱方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/548,892 US10688777B2 (en) | 2015-03-24 | 2016-02-23 | Plate cylinder |
CN201680007813.0A CN107206780B (zh) | 2015-03-24 | 2016-02-23 | 印版滚筒 |
EP16768263.2A EP3275656B1 (en) | 2015-03-24 | 2016-02-23 | Plate cylinder and method of attaching and detaching a printing plate |
KR1020177020698A KR102378285B1 (ko) | 2015-03-24 | 2016-02-23 | 판동 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2015060594A JP6514537B2 (ja) | 2015-03-24 | 2015-03-24 | 版胴 |
JP2015-060594 | 2015-03-24 |
Publications (1)
Publication Number | Publication Date |
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WO2016152360A1 true WO2016152360A1 (ja) | 2016-09-29 |
Family
ID=56978322
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PCT/JP2016/055197 WO2016152360A1 (ja) | 2015-03-24 | 2016-02-23 | 版胴 |
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US (1) | US10688777B2 (ja) |
EP (1) | EP3275656B1 (ja) |
JP (1) | JP6514537B2 (ja) |
KR (1) | KR102378285B1 (ja) |
CN (1) | CN107206780B (ja) |
WO (1) | WO2016152360A1 (ja) |
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JP6316121B2 (ja) * | 2014-06-30 | 2018-04-25 | 昭和アルミニウム缶株式会社 | 版胴、版装着装置 |
JP6878935B2 (ja) * | 2017-02-10 | 2021-06-02 | 東洋製罐株式会社 | 印刷版ユニット及びこれを用いた印刷装置 |
CN108081751A (zh) * | 2017-12-08 | 2018-05-29 | 广州市佳盛印刷有限公司 | 一种烟草包装盒印刷装置的安装结构 |
CN108705862B (zh) * | 2018-07-31 | 2023-12-19 | 贵州贤俊龙彩印有限公司 | 一种新型印版滚筒 |
EP3640031A1 (de) | 2018-10-17 | 2020-04-22 | Flint Group Germany GmbH | Zylinder mit beweglichem pin sowie montage- und demontageverfahren |
JP7206144B2 (ja) * | 2019-03-28 | 2023-01-17 | アルテミラ製缶株式会社 | スリーブ印刷版用版胴、スリーブ印刷版の固定方法、及び、缶の印刷装置 |
JP7206145B2 (ja) * | 2019-03-28 | 2023-01-17 | アルテミラ製缶株式会社 | スリーブ印刷版用版胴、スリーブ印刷版の固定方法、及び、缶の印刷装置 |
CN110202917B (zh) * | 2019-07-12 | 2021-01-15 | 佛山市南海区里水京阳胶辊制造有限公司 | 一种印刷机辊 |
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- 2016-02-23 WO PCT/JP2016/055197 patent/WO2016152360A1/ja active Application Filing
- 2016-02-23 EP EP16768263.2A patent/EP3275656B1/en active Active
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EP3275656A4 (en) | 2018-09-05 |
KR20170129100A (ko) | 2017-11-24 |
CN107206780A (zh) | 2017-09-26 |
KR102378285B1 (ko) | 2022-03-24 |
JP2016179587A (ja) | 2016-10-13 |
EP3275656A1 (en) | 2018-01-31 |
US10688777B2 (en) | 2020-06-23 |
US20180037021A1 (en) | 2018-02-08 |
EP3275656B1 (en) | 2020-04-08 |
JP6514537B2 (ja) | 2019-05-15 |
CN107206780B (zh) | 2019-08-02 |
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