JP5964071B2 - Cylindrical body manufacturing apparatus and cylindrical body manufacturing method - Google Patents

Description

  The present invention relates to a cylindrical body manufacturing apparatus and a cylindrical body manufacturing method.

  Cylindrical material forming process in which the sheet is wound around the outer peripheral surface of the cylinder member and rounded, and both ends of the sheet are overlapped and joined, the engraving process in which the pattern is engraved on the sheet, and the manufactured cylindrical printing plate is attached to the cylinder There is known a printing method including a mounting step for performing printing, and a printing step for printing a printed pattern on a printing object (for example, see Patent Document 1).

JP 2010-253794 A

Here, in the case of forming a cylindrical member by winding a plate material that is the origin of a printing plate with a rotating member, the plate material may be urged toward the axial direction of the rotating member, and the plate material may be abutted against a predetermined location. preferable. When the plate material is abutted in this way, the behavior of the plate material becomes stable, and the shape of the formed cylindrical body becomes stable. By the way, if a dedicated urging mechanism is provided for urging the plate material, the number of parts increases and the apparatus configuration is likely to be complicated.
An object of the present invention is to realize the biasing of the plate material in the axial direction of the rotating member that winds up the plate material with a simple configuration.

A cylindrical body manufacturing apparatus to which the present invention is applied winds while rotating a plate material that is a base of a printing plate, and uses a rotating member that forms a cylindrical body, and the plate material that is wound by the rotating member. A pressing member pressed against the outer peripheral surface of the rotating member; and a plate material abutting portion provided on the rotating member and against which the plate material urged toward the axial direction of the rotating member is provided, The pressing member has a portion that moves toward the downstream side in the movement direction of the plate material while coming into contact with the plate material wound by the rotating member and approaches the plate material abutting portion as the movement is performed, When the portion of the pressing member approaches the plate material abutting portion, the plate material is abutted against the plate material abutting portion, or the pressing member is provided rotatably. The first member and the second member are disposed along the axial direction of the rotating member and have different positions in the axial direction and different outer diameters. The difference between the speed and the peripheral speed of the second part is utilized, the plate material is abutted against the plate material abutting portion, or the pressing member moves with winding by the rotating member While rotating around a predetermined rotation axis while contacting the plate material, one of the one end and the other end in the axial direction is arranged so as to be located on the upstream side in the movement direction of the plate material, Since the one end and the other end of the pressing member are displaced in the moving direction, the plate material is abutted against the plate material abutting portion, or the axial direction of the rotating member is directed. The pressing member is further biased by the biasing mechanism, and the pressing member is biased toward the axial direction by the biasing mechanism, so that the plate material is abutted against the plate material abutting portion. Is a cylindrical body manufacturing apparatus.
From another point of view, the cylindrical body manufacturing apparatus to which the present invention is applied winds while rotating a plate material that is a base of a printing plate, and forms a cylindrical body with the rotary member and the rotary member. A pressing member pressed against the outer peripheral surface of the rotating member via the plate member, and a plate member abutting against the plate member provided on the rotating member and biased toward the axial direction of the rotating member And a pressing member is used, and the plate material is abutted against the plate material abutting portion.

Here, the pressing member moves toward the downstream side in the moving direction of the plate material while contacting the plate material wound by the rotating member, and moves toward the plate material abutting portion as the movement is performed. And the abutting of the plate material to the plate material abutting portion is performed when the portion of the pressing member approaches the plate material abutting portion. In this case, the plate member can be urged in the axial direction of the rotating member without providing the urging member that urges the pressing member in the axial direction of the rotating member.
In addition, a plurality of the portions of the pressing member are provided and are arranged at different locations in the axial direction of the rotating member, and one portion of the plurality of the portions provided is the plate protrusion. The other part of the plurality of the parts provided on the abutting part side is provided on the side farther from the plate abutting part than the one part, and the one part is downstream in the movement direction. The amount of approach of the one part to the plate material abutting part side when moving a predetermined distance toward the other side is the predetermined distance toward the downstream side in the movement direction of the other part The pressing member may be configured to be larger than an approaching amount of the other part toward the plate material abutting portion side when moved. In this case, tension along the axial direction of the rotating member can be applied to the plate material, and wrinkles and the like can be prevented from occurring on the plate material.
In addition, the pressing member is provided in a rotatable manner and is disposed along the axial direction of the rotating member, and the first part and the second part are different in position in the axial direction and different in outer diameter. The difference between the peripheral speed of the first part and the peripheral speed of the second part is utilized, and the abutting of the plate material to the plate material abutting part is performed. it can. In this case, the plate material can be abutted against the plate material abutting portion only by rotating the pressing member.
In addition, the pressing member rotates around a predetermined rotation axis while contacting the plate member that is moved along with the winding by the rotating member, and one of the one end and the other end in the axial direction is more than the other. Is disposed so as to be located upstream in the movement direction of the plate material, and the one end and the other end of the pressing member are arranged to be shifted in the movement direction, so that the plate abutting portion is The abutting of the plate material is performed. In this case, the plate material can be abutted against the plate material abutting portion only by rotating the pressing member.
The plate member further includes a biasing mechanism that biases the pressing member toward the axial direction of the rotating member, and the pressing member is biased toward the axial direction by the biasing mechanism. The abutment of the plate material to the abutment portion may be performed. In this case, it is possible to increase the urging force when urging the plate member in the axial direction of the rotating member.

  Further, when the present invention is regarded as a manufacturing method of a cylindrical body, the manufacturing method of the cylindrical body to which the present invention is applied is a pressing member that is pressed against the outer peripheral surface of the rotating member via a plate material that is a base of a printing plate. A cylinder for producing a tubular body by pressing the plate against the outer peripheral surface and urging the plate member in the axial direction of the rotary member and rotating the rotary member while abutting the plate member against a predetermined portion of the rotary member A method for manufacturing a cylindrical body, characterized in that the pressing member is used and the plate member is abutted against the predetermined portion.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to implement | achieve the urging | biasing of the board | plate material to the axial direction of the rotating member which winds up a board | plate material with a simple structure.

It is the figure which showed the image forming apparatus which forms an image on the outer peripheral surface of a can. It is the figure which showed the manufacturing apparatus used for manufacture of a printing plate. It is the figure which showed the state at the time of setting a base material to a manufacturing apparatus. It is a figure for demonstrating operation | movement of a manufacturing apparatus. It is a figure for demonstrating operation | movement of a manufacturing apparatus. It is a figure for demonstrating a roll-shaped member. It is the figure which showed the other structural example of the roll-shaped member. It is the figure which showed the other structural example of the roll-shaped member. It is the figure which showed the other structural example of the roll-shaped member. It is the figure which showed the other structural example of the roll-shaped member. It is the figure which showed the other structural example of the roll-shaped member and the rotation drive part. It is the figure which showed the other structural example of the manufacturing apparatus. It is the figure which showed the other structural example of the manufacturing apparatus.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram illustrating an image forming apparatus 500 that forms an image on the outer peripheral surface of a can body.
An image forming apparatus 500 shown in the figure is an image forming apparatus that forms an image on a can 10 used for a beverage can by so-called offset printing. The image forming apparatus 500 includes a disc-shaped blanket cylinder 510, a plurality of image forming units 520 each having a printing plate corresponding to a pattern, and forming an image on the blanket cylinder 510, a mandrel foil 530 supporting the can body 10, A protective layer forming apparatus 540 is provided that applies a paint to the surface of the can body 10 and forms a protective layer on the outer peripheral surface of the can body 10.

  The blanket cylinder 510 is formed in a columnar shape and rotates in one direction (the direction indicated by the arrow in the figure). The blanket cylinder 510 has a plurality of blankets (transferred portions) 511 on the outer peripheral surface. Here, the blanket cylinder 510 transfers the ink transferred onto the blanket 511 from the printing plate provided in each of the image forming units 520 to the can body 10 at the transfer portion T.

  A plurality of image forming units 520 are provided for each color along the circumferential direction of the blanket cylinder 510. Each of the image forming units 520 includes a transfer member 522 that contacts the blanket 511 and transfers an image formed with ink to the blanket 511, and an ink supply device 521 that supplies ink to the outer peripheral surface of the transfer member 522. I have. Here, the transfer member 522 is formed in a cylindrical shape and is rotated and driven by a motor (not shown), and unevenness corresponding to a pattern (image) is formed on the outer peripheral surface and is formed in a cylindrical shape. And a printing plate 522B attached to 522A.

  Here, in the present embodiment, ink is supplied from the ink supply device 521 to the outer peripheral surface of the printing plate 522 </ b> B, and then this ink is transferred to the blanket 511. As a result, an image formed of ink is formed on the surface of each blanket 511. Specifically, the ink is sequentially transferred from each of the image forming units 520 (printing plate 522B) to each region assigned to each image forming unit 520 on the surface of each blanket 511. As a result, an image corresponding to the design is formed on the surface of each blanket 511. The image moves to the transfer portion T as the blanket cylinder 510 rotates, and is transferred to the outer peripheral surface of the can 10 rotating in the circumferential direction. Thereby, an image is formed on the outer peripheral surface of the can 10.

  The mandrel foil 530 is disposed at a position opposite to the blanket cylinder 510 and rotates in one direction, and transports the can body 10 that has moved from a not-shown washer process to the transfer unit T. When the can body 10 reaches the transfer portion T, the can body 10 is rotated in the circumferential direction. In this embodiment, the ink from the blanket 511 is transferred over the entire circumference of the can body 10. The protective layer forming apparatus 540 applies a paint to the outer peripheral surface of the can body 10 to which the image is transferred. Thereby, a protective layer is formed on the ink layer (image formed on the outer peripheral surface of the can 10).

  In the present embodiment, when the design (image) formed on the can 10 is changed, only the printing plate 522B is exchanged. In other words, the printing plate 522B formed in a cylindrical shape is moved along the axial direction of the cylinder 522A, so that the printing plate 522B can be detached from the cylinder 522A. Further, the printing plate 522B can be attached to the cylinder 522A by moving the printing plate 522B so that the cylinder 522A is inserted into the cylindrical printing plate 522B.

  The printing plate 522B can be attached to the cylinder 522A as follows. For example, the printing plate 522B can be attached to the cylinder 522A by winding a sheet-like printing plate 522B instead of a cylindrical shape around the cylinder 522A. By the way, in this case, the attaching operation of the printing plate 522B becomes complicated, and it becomes difficult to attach the printing plate 522B to the cylinder 522A with high accuracy. As another method, for example, the cylinder 522A may be temporarily detached from the image forming apparatus 500, and the printing plate 522B may be attached to the cylinder 522A outside the image forming apparatus 500. Incidentally, in this case, the cylinder 522A is heavy and increases the burden on the operator.

Further, for example, there is a method in which the cylinder 522A is omitted, the printing plate 522B itself is given rigidity, and the printing plate 522B itself is attached to the image forming apparatus 500. In this case, since it is not necessary to attach the printing plate 522B to the cylinder 522A, the work can be simplified. In this case, each of the printing plates 522B is expensive.
On the other hand, in the configuration of the present embodiment, the printing plate 522B can be formed relatively easily because the sheet-like base material is rolled to form the printing plate 522B (details will be described later). Further, since it is not necessary to remove the cylinder 522A from the image forming apparatus 500, the replacement work of the printing plate 522B can be simplified. Furthermore, sheet-like substrates are widely spread and inexpensive, and the printing plate 522B can be manufactured at a low cost with the configuration of this embodiment.

  FIG. 2 is a diagram showing a manufacturing apparatus 100 used for manufacturing the printing plate 522B. 2A is a view when the manufacturing apparatus 100 is viewed from above, and FIG. 2B is a view when the manufacturing apparatus 100 is viewed from the direction of arrow IIB in FIG. 2A. .

  Here, when manufacturing the printing plate 522B of the present embodiment, as shown in FIG. 2A, a rectangular (rectangular) and plate-shaped (sheet-shaped) base material 150 is prepared. Moreover, the manufacturing apparatus 100 in this embodiment includes a base material support portion 200 that supports the base material 150 and a base material 150 that is rotationally driven and supported by the base material support portion 200, as shown in FIG. It is comprised from the base material winding part 300 which winds up.

  Here, the base material support part 200 has a support plate 210 that supports the base material 150 from below, as shown in FIG. In addition, the base material support part 200 is disposed on the side of the first side 150A of the base material 150 (the side along the moving direction of the base material 150), and is based on the width direction (short direction) of the base material 150. A pressing device 220 that presses the material 150 is provided. Further, the second side 150B (positioned on the side opposite to the first side 150A) of the base 150 is arranged along the moving direction of the base 150 (longitudinal direction of the base 150) and pressed by the pressing device 220. A pressing member 230 is provided to which the side to be pressed is pressed.

  Here, two pressing devices 220 are provided, and the two pressing devices 220 are arranged in a state of being shifted from each other in the moving direction of the substrate 150. Each of the pressing devices 220 includes a pressing member 221 that contacts the first side 150 </ b> A of the base 150 and presses the base 150, and an air cylinder, for example, and the pressing member 221 serves as the first side of the base 150. The urging member 222 is urged toward 150A.

  Here, in this embodiment, the pressing member 221 is formed in a disk shape and is rotatably provided, and the drag applied to the base material 150 from the pressing member 221 is small. In addition, the urging member 222 can be configured by an air cylinder, or can be configured by an elastic member such as a coil spring, for example.

Next, the substrate winding unit 300 will be described.
In the substrate winding unit 300 of the present embodiment, as shown in FIG. 5B, a rotation driving unit as an example of a rotating member that is formed in a columnar shape and is rotated clockwise by a motor (not shown). 341 is provided. Further, as shown in FIG. 3A, the substrate winding unit 300 is provided at one end in the axial direction of the rotation driving unit 341 and is provided so as to protrude from the outer peripheral surface of the rotation driving unit 341. In addition, a pressing member 342 that is formed in a disk shape and is pressed against the second side 150 </ b> B of the base material 150 that is being wound up by the rotation driving unit 341 is provided. In other words, there is provided a pressing member 342 that functions as a plate material abutting portion against which the base material 150 urged in the axial direction of the rotation driving unit 341 is abutted.

  Furthermore, a groove 343 is formed on the outer peripheral surface of the rotation drive unit 341 along the axial direction of the rotation drive unit 341 as shown in FIG. In the present embodiment, the surface of the pressing member 342 on which the base material 150 is actually pressed and the base material 150 of the pressing member 230 provided on the base material support 200 are actually pressed. The surface is placed on the same surface (the surface along the vertical direction and disposed along the moving direction of the substrate 150 (the surface indicated by reference numeral 2A in FIG. 2A)). Has been placed.

  Further, as shown in FIG. 2B, the base material winding unit 300 is provided with a pressing member 310 that presses the base material 150 toward the outer peripheral surface of the rotation driving unit 341. Furthermore, after the winding of the base material 150 is completed, it is pressed against the outer peripheral surface of the rotation driving unit 341 via the base material 150 to restrict the rotation of the rotation driving unit 341 after the winding of the base material 150 is completed. A rotation restricting member 320 is provided. Furthermore, after the winding of the base material 150 is completed, a pressing member 330 is provided that is pressed against a joint portion between one end of the base material 150 and the other end of the base material 150.

  Here, the pressing member 310 is a roll-shaped member 311 as an example of a pressing member that is pressed against the outer peripheral surface of the rotation driving unit 341 via the base material 150 that is rotatably provided and wound by the rotation driving unit 341. And an advancing / retreating mechanism 312 configured by an air cylinder for advancing and retracting the roll-shaped member 311 with respect to the base material 150 (the outer peripheral surface of the rotation driving unit 341). The rotation restricting member 320 includes an advance / retreat member 321 provided so as to be capable of advancing / retreating with respect to the base material 150 (the outer peripheral surface of the rotation drive unit 341) and an air cylinder. It comprises an advance / retreat mechanism 322 for advancing / retreating. In the following, the case where the roll-shaped member 311 rotates following the movement of the base material 150 will be described. However, a drive source is provided separately, and the roll-shaped member 311 is rotationally driven using this drive source. Also good.

Further, the pressing member 330 is also composed of an advancing / retreating member 331 provided so as to be capable of advancing / retreating with respect to the base material 150 (the outer peripheral surface of the rotation drive unit 341) and an air cylinder. It comprises an advance / retreat mechanism 332 for advancing / retreating.
In the present embodiment, the case where the advance / retreat mechanism 312, the advance / retreat mechanism 322, and the advance / retreat mechanism 332 are configured by an air cylinder has been described, but a solenoid or a coil spring may be used instead of the air cylinder.

  Here, when the printing plate 522B is manufactured by the manufacturing apparatus 100, first, as shown in FIG. 3 (a diagram showing a state when the base material 150 is set on the manufacturing apparatus 100), the rotation driving unit 341 is operated by the operator. The base material 150 is attached to the surface. More specifically, in attaching the base material 150 to the rotation drive unit 341, as shown in the figure, first, one end portion in the longitudinal direction of the base material 150 is bent, A protruding portion 152 that protrudes in the thickness direction of the substrate 150 is formed at the end of 150. Next, the base material 150 is placed on the support plate 210 (see FIG. 2A), and, as shown in FIG. 3, a protruding portion with respect to the groove 343 formed along the axial direction of the rotation driving portion 341. 152 is inserted. As a result, the base material 150 moves along with the rotational drive of the rotational drive unit 341.

  When the rotational drive unit 341 is rotationally driven, a wedge-shaped region 341A (see FIG. 3) located between the outer peripheral surface of the rotational drive unit 341 and the groove 343 is a main body portion of the base material 150. 151 enters the wedge-shaped space 153 formed between the protrusion 151 and the protrusion 152. For this reason, in the configuration of the present embodiment, the protrusion 152 is less likely to be detached from the groove 343 during the rotation of the rotation driving unit 341. In the above description, the case where the operator inserts the protrusion 152 into the groove 343 has been described. However, the rotation driving unit 341 is rotated in the clockwise direction in the drawing with the base material 150 placed on the rotation driving unit 341. Also by rotating, the protrusion 152 naturally enters the groove 343, and the protrusion 152 can be inserted into the groove 343.

Next, the operation of the manufacturing apparatus 100 will be described.
4-5 is a figure for demonstrating operation | movement of the manufacturing apparatus 100. FIG.
After the base material 150 is set as described above, in the present embodiment, as shown in FIGS. 4A and 4B, rotation of the rotation drive unit 341 in the clockwise direction in the drawing is started, 150 winding is started. At this time, the pressing member 221 of the pressing device 220 (see FIG. 2A) is pressed against the base 150, and the base 150 is pressed against the pressing member 230 (see FIG. 2A). It is in the state that was.

  Although not described above, in this embodiment, as shown in FIG. 4A, a through hole 211 is formed in the support plate 210, and the substrate 150 is sucked through the through hole 211. (See arrow 4A in FIG. 4A). In this state, when the rotation driving unit 341 is rotated clockwise, the base material 150 starts to move while being wound around the support plate 210 by the rotation driving unit 341. However, when the base material 150 is pressed against the support plate 210 by suction from the through hole 211 formed in the support plate 210, the base material 150 is prevented from moving. Thereby, the base material 150 becomes a form by which the base material 150 is pulled to the upstream side in the conveyance direction, and the base material 150 is not easily loosened. In the present embodiment, the base material 150 is hardly attracted by sucking the base material 150. However, when the base material 150 having magnetism is used, a magnet is provided on the support plate 210 to provide a base. The slack of the material 150 can be made difficult to occur.

  Further, in the present embodiment, when the base material 150 is being wound, the base material 150 is pressed against the rotation drive unit 341 by the roll-shaped member 311, and is based on the surface of the rotation drive unit 341. The material 150 is in close contact, and the base material 150 is more difficult to loosen.

  In the present embodiment, as shown in FIG. 4C, after the rotation drive unit 341 rotates about 90 °, the rotation of the rotation drive unit 341 is temporarily stopped by the operator. Then, an adhesive is applied to one end of the base material 150 (the end located on the downstream side in the rotation direction of the rotation drive unit 341) by the operator. Thereafter, the rotation of the rotation drive unit 341 is restarted, and the substrate 150 is further wound as shown in FIG.

  Thereafter, the rotation drive unit 341 is further rotated, and at the same time, one end of the substrate 150 (an end located downstream in the rotation direction of the rotation drive unit 341) and the other end (the rotation of the rotation drive unit 341). And the rotation of the rotation drive unit 341 is stopped. Thereby, the manufacturing apparatus 100 will be in the state shown to FIG. 5 (B).

  Thereafter, the advancing / retreating member 321 of the rotation restricting member 320 is pressed against the rotation driving unit 341 via the base material 150, whereby the rotation driving unit 341 is fixed. Further, a portion where the one end portion (end portion located on the downstream side) of the base material 150 and the other end portion (end portion located on the upstream side) overlap (hereinafter referred to as “joining portion”). In other words, the advance / retreat member 331 of the pressing member 330 advances, and the advance / retreat member 331 is pressed against the joint.

  Thereafter, spot welding is performed on the joint by the operator, and one end and the other end of the base material 150 are fixed. Note that, as described above, an adhesive is applied to the one end, and in this embodiment, one end and the other end of the base material 150 are not only welded but also bonded. Is fixed. Thereafter, the roll-shaped member 311, the advance / retreat member 321, and the advance / retreat member 331 are moved in a direction away from the substrate 150, and the roll-shaped member 311, the advance / retreat member 321, and the advance / retreat member 331 are separated from the substrate 150. Thereafter, the cylindrical base material 150 is removed from the rotation driving unit 341.

  The pattern (unevenness) formed on the outer peripheral surface of the printing plate 522B can be formed, for example, by forming a resin layer on the surface of the substrate 150 and irradiating the resin layer with a laser. The formation of the resin layer and the laser irradiation can be performed on the plate-like substrate 150 before being formed into the cylindrical printing plate 522, or the substrate 150 is made cylindrical by the manufacturing apparatus 100. After that, it can be performed on the cylindrical substrate 150. Alternatively, after forming the resin layer on the plate-like base material 150, the base material 150 can be formed into a cylindrical shape, and then the cylindrical base material 150 can be irradiated with a laser.

  By the way, in this embodiment, the press apparatus 220 (refer FIG. 2 (A)) is not provided over the whole region of the conveyance path | route of the base material 150. FIG. For this reason, in this embodiment, when the rear end of the base material 150 passes through the second pressing device 220 (the pressing device 220 located downstream in the moving direction of the base material 150), the pressing member 230 (FIG. 2). (See (A)) and the force to press the substrate 150 against the pressing member 342 is reduced. When such a decrease in force occurs, the base material 150 is likely to be displaced in the width direction of the base material 150.

  In this case, the pattern (unevenness) formed on the outer peripheral surface of the printing plate 522B is likely to be distorted. In other words, the shape of the printing plate 522B becomes difficult to be constant, and it becomes difficult to form the printing plate 522B having a stable shape. Therefore, in the present embodiment, the roll-shaped member 311 provided on the pressing member 310 is also used to make it difficult for the base material 150 to be displaced in the width direction of the base material 150.

  FIG. 6 is a view for explaining the roll-shaped member 311. 6A is a view when the roll-shaped member 311 and the rotation driving unit 341 are viewed from the direction of the arrow VIA in FIG. 2B, and FIG. 6B is the view in FIG. It is a figure at the time of looking at the roll-shaped member 311 grade | etc., From the arrow VIB direction.

  As illustrated in FIG. 6A, the roll-shaped member 311 is disposed along the axial direction of the rotation driving unit 341. Further, as shown in FIGS. 2A and 2B, the roll-shaped member 311 is provided so as to protrude from the outer peripheral surface of the base body 311A and the base body 311A, and is formed in a spiral shape. And a protruding portion 311B.

  Here, the base 311A has one end 311C on the pressing member 342 side and the other end 311D on the opposite side to the pressing member 342 side. In the present embodiment, the base 311A is viewed from the other end 311D side in a state where the base 311A is disposed so that the one end 311C side of the base 311A is the back side so that the other end 311D side of the base 311A is the front side. Further, the protruding portion 311B approaches the one end 311C of the base 311A as it proceeds in the counterclockwise direction.

  Here, in this embodiment, the roll-shaped member 311 is rotated following the movement of the base material 150, and the part in contact with the base material 150 in the protruding portion 311 </ b> B during this rotation. (A part indicated by reference numeral 6E in FIG. 6A) approaches the pressing member 342 side toward the downstream side in the moving direction of the base material 150, as indicated by an arrow 6F in FIG. In addition, in the present embodiment, the portion of the protruding portion 311B that is in contact with the base material 150 moves toward the downstream side in the movement direction of the base material 150 while being in contact with the base material 150 and as this movement is performed. It approaches the pressing member 342 side.

As a result, a force for pressing the base material 150 against the pressing member 342 is applied to the base material 150, and the second side 150B (see FIG. 2A) of the base material 150 is pressed. It comes to be pressed against the contact member 342. In this case, the base material 150 is pressed against the pressing member 342 even after the base material 150 passes through the second pressing device 220 (the pressing device 220 located on the downstream side). The shape of the printing plate 522B becomes stable.
In addition, although illustration is abbreviate | omitted, formation of the pitch which shows the space | interval in which the protrusion part 311B is formed can be shortened the other end side compared with the pressing member 342 side. In addition, FIG. 6A illustrates the case where the distances between the adjacent protrusions 311B are equal to each other. For example, the formation pitch of the protrusions 311B is changed from the other end 311D side of the base 311A to the one end 311C of the base 311A. By gradually widening toward the side, the distance between the two protrusions 311B located on the one end 311C side and adjacent to each other is the distance between the two protrusions 311B located on the other end 311D side and adjacent to each other. Can be larger.
More specifically, for example, the protrusion 311B moves toward the downstream side in the movement direction of the base material 150 by a certain unit distance by narrowing the formation pitch of the protrusions 311B on the other end 311D side and widening on the one end 311C side. The approaching amount of the protruding portion 311B toward the pressing member 342 can be made different between the one end 311C side and the other end 311D side. More specifically, the approaching amount of one part that contacts the base material 150 on the one end 311C side of the protruding portion 311B is approached, and the approaching amount of the other part that contacts the base material 150 on the other end 311D side Can be larger.
More specifically, the pitch is related to the feed amount that the roll-shaped member 311 sends to the pressing member 342 side when the base member 150 is sent in the winding direction. That is, if the pitch is large, the feed amount to be sent to the pressing member 342 side is large, and if the pitch is small, the feed amount to be sent to the pressing member 342 side is small. In the present embodiment, the base material 150 is fed so as to move to the pressing member 342 side, but tension is generated on the base material 150 due to a difference in feed amount in a direction perpendicular to the winding direction. . As a result, in addition to the tension generated in the winding direction, tension is also generated in a direction perpendicular to the winding direction, thereby applying tension to the four sides of the base material 150, thereby suppressing the occurrence of wrinkles and slack. The material 150 can be wound. In addition, this can be similarly dealt with by the shape in FIG. 7 described later.

  As shown in FIG. 6B, the protruding portion 311B has an outer peripheral surface 311D, a side surface 311E connecting the outer peripheral surface 311D and the outer peripheral surface of the base 311A, and a connecting portion between the outer peripheral surface 311D and the side surface 311E. The corner 311F (see FIG. 6A) has a shape, but as shown in FIG. 7 (a diagram showing another configuration example of the roll-shaped member 311), the corner 311F is chamfered. It can also be set as the shape which gave. If it adds, the location where outer peripheral surface 311D of the protrusion part 311B and the side surface 311E of the protrusion part 311B cross can be made into a curved surface. In the case of such a configuration, it is possible to suppress the contact pressure between the portion in contact with the corner portion 311F of the base material 150 and the corner portion 311F from being higher than the contact pressure at other portions. It is difficult for problems such as linear scratches to occur, and problems such as wear of the edges of the corners 311F are less likely to occur.

  Moreover, the roll-shaped member 311 can also be comprised like FIG. 8 (The figure which showed the other structural example of the roll-shaped member 311). FIG. 6A is a view when the roll-shaped member 311 and the rotation driving unit 341 are viewed from above, and FIG. 6B is a view illustrating the roll-shaped member 311 from the direction of arrow VIIIB in FIG. FIG. 6C is a view when the roll-shaped member 311 and the rotation drive unit 341 are viewed from the direction of the arrow VIIIC in FIG.

  Here, in this configuration example, as shown in FIG. 3C, the roll-shaped member 311 and the rotation drive unit 341 are arranged in a state where the axis of the roll-shaped member 311 is inclined with respect to the axis of the rotation drive unit 341. Is arranged. Further, as shown in FIG. 5A, a roll-shaped member 311 is formed in a truncated cone shape, and the outer diameter of the roll-shaped member 311 gradually increases from one end of the roll-shaped member 311 toward the other end. It is getting bigger. More specifically, the outer diameter of the roll-shaped member 311 increases from one end portion of the roll-shaped member 311 located on the pressing member 342 side toward the end opposite to the one end portion. The roll-shaped member 311 is formed so as to gradually increase.

  Here, in this configuration example, the peripheral speed of the first part located on the large diameter side of the roll-shaped member 311 is larger than the peripheral speed of the second part located on the small diameter side. In this case, the moving speed of the base material 150 also varies depending on the part, and the moving speed of the part located on the side opposite to the part located on the pressing member 342 side of the base material 150 is the pressing member. It becomes larger than the moving speed of the part located on the 342 side. In this case, the base material 150 comes closer to the pressing member 342 side as it moves. As a result, the second side 150B of the substrate 150 is pressed against the pressing member 342 in the same manner as described above.

  8 illustrates the solid roll-shaped member 311, but as illustrated in FIG. 9 (a diagram illustrating another configuration example of the roll-shaped member 311), the roll-shaped member 311 is compared to the roll-shaped member 311. It is also possible to provide a plurality of grooves 311G along the circumferential direction. In this case, the rigidity of the roll-shaped member 311 is lowered by providing the groove 311G as compared with the configuration shown in FIG. In this case, for example, the base material 150 having low rigidity is forcibly conveyed and the base material 150 is not easily damaged.

  Further, as shown in FIG. 10 (a diagram illustrating another configuration example of the roll-shaped member 311), the roll-shaped member 311 is provided with a plurality of grooves 311G along the circumferential direction of the roll-shaped member 311 and the groove 311G. It can also be set as the shape which chamfered with respect to the corner | angular part of the protrusion part 311H formed with formation of this. More specifically, it is possible to chamfer a corner portion formed at a location where the outer peripheral surface 311J of the protruding portion 311H and the side surface 311K of the protruding portion 311H intersect, and to give a curvature to the corner portion. In this case, similarly to the above, problems such as a linear scratch on the surface of the substrate 150 are less likely to occur, and problems such as wear of the edges of the corner portions 311F are less likely to occur.

  FIG. 11 is a diagram illustrating another configuration example of the roll-shaped member 311 and the rotation driving unit 341. As in the above, FIG. 4A is a view when the roll-shaped member 311 and the rotation drive unit 341 are viewed from above, and FIG. 4B is from the direction of the arrow XIB in FIG. FIG. 6C is a view when the roll-shaped member 311 and the rotation drive unit 341 are viewed, and FIG. 10C is a view when the roll-shaped member 311 and the rotation drive unit 341 are viewed from the direction of the arrow XIC in FIG. It is.

  In the present embodiment, the outer diameter of one end portion of the roll-shaped member 311 is equal to the outer diameter of the other end portion of the roll-shaped member 311. Specifically, the outer diameter of one end 311C on the pressing member 342 side is equal to the outer diameter of the other end 311D located on the opposite side to the pressing member 342 side. Further, in the present embodiment, as shown in FIG. 5A, when viewed from above, the axis of the roll-shaped member 311 and the axis of the rotation drive unit 341 are not parallel but have a certain angle. It is in a state. More specifically, in the present embodiment, the roll-shaped member 311 and the rotation drive unit 341 are arranged in a state where the axis of the roll-shaped member 311 and the axis of the rotation drive unit 341 are twisted.

  Moreover, in this embodiment, as shown to the same figure (A), in the conveyance direction (movement direction) of the base material 150, the one end 311C of the roll-shaped member 311 is upstream from the other end 311D of the roll-shaped member 311. Arranged on the side. In other words, one end 311 </ b> C of the roll-shaped member 311 and the other end 311 </ b> D of the roll-shaped member 311 are arranged so as to be shifted in the moving direction of the base material 150. More specifically, the roll-shaped member 311 is inclined so that a virtual line 11A that is orthogonal to the axis of the roll-shaped member 311 and goes to the downstream side in the conveyance direction of the substrate 150 is directed to the pressing member 342. It is arranged in the state.

  Here, as a result of such a configuration, also in this configuration example, when the base material 150 passes between the roll-shaped member 311 and the rotation driving unit 341, the pressing member 342 is pressed against the base material 150. The force toward is applied. Accordingly, the second side 150 </ b> B of the base material 150 is pressed against the pressing member 342 as described above.

  If the roll-shaped member 311 and the rotation drive unit 341 are twisted as in this configuration example, the end of the roll-shaped member 311 is in a state of floating from the outer peripheral surface of the rotation drive unit 341. It becomes easy. In this case, slippage is likely to occur between the roll-shaped member 311 and the base material 150, and the pressing of the base material 150 against the pressing member 342 may be insufficient.

  For this reason, in this embodiment, the hardness of the roll-shaped member 311 is made small and the roll-shaped member 311 is dented. In this case, the end of the roll-shaped member 311 is likely to come into contact with the outer peripheral surface of the rotation drive unit 341, and the contact pressure between the end of the roll-shaped member 311 and the base material 150 is easily secured. In this case, slippage between the roll-shaped member 311 and the base material 150 is suppressed, and the pressing of the base material 150 against the pressing member 342 is more reliably performed.

  Here, in the configuration example described above, a groove or the like is formed in the roll-shaped member 311, or the outer diameter of the roll-shaped member 311 is made different at one end and the other end, thereby pressing the base material 150. The pressing member 342 is pressed against, but in this case, the production of the roll-shaped member 311 requires a cost. In this case, the manufacturing cost of the manufacturing apparatus 100 also increases. On the other hand, in the configuration example shown in FIG. 11, a forming process such as a groove is unnecessary, and the outer diameter is equal between one end and the other end of the roll-shaped member 311, and the roll-shaped member is more inexpensive. 311 can be manufactured. In this case, the manufacturing cost of the manufacturing apparatus 100 can be reduced.

  In addition, the structure shown in FIGS. 6-11 can also be combined. For example, you may make it provide the helical protrusion part 311B demonstrated in FIG. 6 with respect to the roll-shaped member 311 in FIG. Further, for example, the spiral protrusion 311B described in FIG. 6 can be provided on the roll-shaped member 311 in FIG. Further, for example, the outer diameter of the roll-shaped member 311 in FIG. 11 can be made different between the one end portion and the other end portion as described in FIG.

  In the above description, the base member 150 is pressed against the pressing member 342 by devising the shape or arrangement of the roll-shaped member 311, but the pressing member 310 is moved so that the roll-shaped member 311 faces the pressing member 342. The base member 150 may be pressed against the pressing member 342 by biasing.

  Specifically, for example, as shown in FIG. 12 (a diagram illustrating another configuration example of the manufacturing apparatus 100), the pressing member 310 such as an air cylinder is directed toward the pressing member 342 (the axis of the rotation driving unit 341). It can be set as the structure which provided the urging | biasing mechanism 400 which urges | biases (toward a direction). In this configuration example, for example, the urging mechanism 400 is turned on after the tip of the base material 150 reaches the roll-shaped member 311 (pressing member 310). Accordingly, as described above, the base material 150 moves toward the downstream side while the second side 150B of the base material 150 is pressed against the pressing member 342.

Note that, for example, an elastic member such as a coil spring can be used for the biasing mechanism 400 as shown in FIG. 13 (a diagram showing another configuration example of the manufacturing apparatus 100). When an elastic member such as a coil spring is used, for example, the stopper 410 is used until the tip of the base material 150 reaches the roll member 311 (pressing member 310), and the load from the elastic member is applied to the roll member 311 ( It is prevented from being transmitted to the pressing member 310). And after the front-end | tip of the base material 150 reaches the roll-shaped member 311, the said stopper 410 is removed, for example. Accordingly, as described above, the base material 150 moves downstream while the second side 150B of the base material 150 is pressed against the pressing member 342.
Further, as a case where the stopper is not used, the biasing mechanism 400 is formed by having an advancing / retreating mechanism for advancing / retreating the base material 150 such as an air cylinder on the surface of the coil spring away from the base material 150. You can also. In such a case, the coil spring can be omitted.

DESCRIPTION OF SYMBOLS 100 ... Manufacturing apparatus, 150 ... Base material, 311 ... Roll-shaped member, 311B ... Projection part, 341 ... Rotation drive part, 342 ... Pressing member, 400 ... Biasing mechanism, 522B ... Printing plate

Claims (6)

A rotating member that winds up and rotates a plate material that is the basis of the printing plate, and forms a cylindrical body,
A pressing member pressed against the outer peripheral surface of the rotating member via the plate member wound by the rotating member;
A plate material abutting portion provided on the rotating member and against which the plate material urged toward the axial direction of the rotating member;
A biasing mechanism that biases the pressing member toward the axial direction of the rotating member;
With
The pressing member is used, the plate material is abutted against the plate material abutting portion ,
The cylindrical body manufacturing apparatus in which the abutting of the plate material to the plate material abutting portion is performed by urging the pressing member in the axial direction by the urging mechanism. A rotating member that winds up and rotates a plate material that is the basis of the printing plate, and forms a cylindrical body,
A pressing member pressed against the outer peripheral surface of the rotating member via the plate member wound by the rotating member;
A plate material abutting portion provided on the rotating member and against which the plate material urged toward the axial direction of the rotating member;
With
The pressing member is used, the plate material is abutted against the plate material abutting portion ,
The pressing member has a portion that approaches the plate material abutting portion as it moves toward the downstream side in the moving direction of the plate material while contacting the plate material wound by the rotating member,
When the part of the pressing member approaches the plate material abutting portion, the abutting of the plate material to the plate material abutting portion is performed,
A plurality of the portions of the pressing member are provided, and are arranged at different locations in the axial direction of the rotating member,
One part of the plurality of parts provided is provided on the plate abutting part side, and the other part of the plurality of parts provided is from the plate abutting part rather than the one part. On the far side,
When the one part moves a predetermined distance toward the downstream side in the movement direction, the approaching amount of the one part to the plate abutting portion side is more downstream in the movement direction. The cylindrical body manufacturing apparatus in which the pressing member is configured to be larger than the approaching amount of the other part to the plate material abutting part side when the predetermined distance is moved toward the side. The pressing member is provided rotatably and is disposed along the axial direction of the rotating member, and has a first portion and a second portion having different positions in the axial direction and different outer diameters. The cylindrical body manufacturing apparatus according to claim 2. The pressing member rotates around a predetermined rotation axis while contacting the plate member that moves as the winding member rotates, and one of the one end and the other end in the axial direction is more than the other. cylindrical body manufacturing apparatus according to claim 2, characterized in that is arranged to be positioned on the upstream side in the moving direction of the plate material. The plate member is urged in the axial direction of the rotating member while pressing the pressing member pressed against the outer peripheral surface of the rotating member through the plate material that is the original of the printing plate, and the plate member is determined in advance of the rotating member. A cylindrical body manufacturing method for manufacturing a cylindrical body by rotating the rotating member while abutting against a given part,
A method for manufacturing a cylindrical body, wherein the pressing member is used, and the pressing member is biased in the axial direction so that the plate member is abutted against the predetermined portion . The plate member is urged in the axial direction of the rotating member while pressing the pressing member pressed against the outer peripheral surface of the rotating member through the plate material that is the original of the printing plate, and the plate member is determined in advance of the rotating member. A cylindrical body manufacturing method for manufacturing a cylindrical body by rotating the rotating member while abutting against a given part,
The pressing member is used, the plate material is abutted against the predetermined part,
The pressing member has a portion that moves toward the downstream side in the movement direction of the plate member while coming into contact with the plate member wound by the rotating member and approaches the predetermined portion as the movement is performed. ,
The abutting of the plate material to the predetermined part is performed by the part of the pressing member approaching the predetermined part,
A plurality of the portions of the pressing member are provided, and are arranged at different locations in the axial direction of the rotating member,
One part of the plurality of parts provided is provided on the predetermined part side, and the other part of the plurality of parts provided is determined in advance of the one part. Provided on the side away from the site,
When the one part moves a predetermined distance toward the downstream side in the movement direction, the approaching amount of the one part to the predetermined part side is greater in the movement direction in the other part. A method for manufacturing a cylindrical body, characterized in that the amount of approach of the other part to the predetermined part side when moving the predetermined distance toward the downstream side is larger .

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