JP3024246U - Register mark creation device - Google Patents

Abstract

(57) [Abstract] (Correction) [Problem] Mutual positional accuracy between a pattern and a register mark is high, and it is possible to create any register mark configuration, and no complicated process is required. A register mark creating device having a simple structure is provided. SOLUTION: A holder 1 having a plate surface capable of positioning and holding a printing plate, a cutter head 7 movable in a two-dimensional direction on the plate surface, and a drive control signal are supplied to the cutter head 7. A control unit is provided, and the control unit is configured to give a positioning operation command to the cutter head 7 based on the input data and then a cutting operation command, and the cutting operation pre-adheres on the printing plate. On the light-shielding film of the laminate consisting of the adhesive layer / transparent film / light-shielding film, a cut is formed so that the other part can be peeled off while leaving the point-like part to be the register mark.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a register mark making apparatus used for making register marks on a printing plate.

[0002]

[Prior art]

 The printing process generally performed is shown in the flowchart of FIG. Here, there is a process of making a printing plate called a PS plate in which a photosensitizer is applied on an aluminum plate after finishing the calibration process. In the process of multi-color printing with an offset printing machine, four colors of ink are used for printing, so four printing plates are produced on this printing machine. Then, as shown in FIG. 10, the transfer of the pattern to the PS plate 92 is carried out by so-called baking work, in which a negative or positive film 91 is attached to each PS plate 92 of each color and strong UV light is irradiated. Be seen. The four plates are then registered on the printing press to eliminate color shifts in the print. Conventionally, this registration has been done by adjusting the operation panel of the printing machine while visually confirming the printing result. However, these methods have been problematic in that they are time-consuming and that there is a lot of loss of printing paper.

Therefore, as a method of performing this registration time in a shorter time, for example, as shown in FIG. 11, the register marks 94a, 94b, 94c, 94d preset in the PS plate 92 of each color are burned in There is a technology for registering using the register mark of. This is because the alignment of these register marks that appear after printing is read by a CCD camera mounted on the printing machine, compared with the preset relative positional relationship, and if there is a deviation, it is fed back to the printing machine. , By automatically adjusting the error of the position, it is automatically registered.

Conventionally, these register marks are created through the steps shown in FIG. In this process, in the process of drawing the register marks for sticking the film on the PS plate (ST.1), first, as shown in FIG. 13, the PS plate 51 is provided with a peep hole 52a for the film original plate and a register mark for the register mark. Using a blue ball-point pen, mount paper 52 (an old PS plate is used) with a peep hole 52b opened, using the blue ball-point pen, and check each of the peep holes 52a, 52b of the mount 52. By drawing along the marks, the register marks 53a for the film original plate and the register marks 53b for the register mark are drawn on the PS plate 51.

Next, as shown in FIG. 14, a film original plate 54 and a register mark film original plate 55 are attached to a PS plate 51, and a film original plate register mark 53a and a register mark register mark 53b are attached as a standard (ST. .2). The register mark film 55 is printed with a register mark 55a in which all points are drawn.

Thereafter, the pattern is printed on the PS plate 51 (ST.3), and then, as shown in FIG. 15A, the films 54 and 55 are peeled off to transfer the pattern and the register mark. PS version 51 is completed. Then, in order to erase the unnecessary portion (55c) of the register mark 55a, as shown in FIG. 15 (b), a mask 57 for burning out, which has an opening for burning out 57c, is prepared. Bake again with 57 mounted on PS plate 51. As a result, as shown in FIG. 15C, a register mark in which only the necessary register mark (55b) is printed is created on the PS plate 51. The above process is performed for each color plate.

As another technique, Japanese Utility Model Laid-Open No. 3-100430 discloses a technique of creating a register mark by an automatic exposure device. This automatic exposure device is provided with an exposure unit for creating a register mark, which is composed of the tip of an optical fiber, and has a mask corresponding to the shape of the register mark to be printed on the tip. Has become. With this configuration, the register mark corresponding to the shape of the attached mask is printed on the PS plate by the irradiation of ultraviolet light from the optical fiber. With this device, the original film is printed after printing the register mark. For this reason, when using a positive PS plate, when the original film is printed, it is baked after applying a paint to shield the already-registered register mark from light.

[0008]

[Problems to be solved by the device]

 By the way, in the conventional technique of creating the register mark, the former technique has the following two problems.

First, a register mark film original plate, on which all points have already been drawn, is manually pasted onto the printing plate. At this point, the register mark position is determined and even if an error occurs in the pasting accuracy. The positional accuracy cannot be resolved.

Therefore, the mutual positional accuracy between the created pattern and the register mark is poor. Another problem is that in the conventional method, as a general rule, all marks must be burned and unnecessary marks must be erased again after the burning is completed, which requires two burning processes. . For this reason, it is necessary to prepare a mask suitable for each version in advance, which is a very nervous work for the operator. In other words, since there are masks corresponding to the number of colors in the multicolor printing process, mistakes such as mistakes in the mask to be used are likely to occur, and moreover, it is labor intensive as a whole process including two printing processes. It takes time.

On the other hand, in the latter prior art using an optical fiber, it is necessary to prepare an exposure section provided with another mask depending on the shape of the register mark, and when a positive PS plate is used, In this technology, the device structure and working process are also complicated, for example, the process of applying paint for shielding the register mark is required when the film original plate is printed thereafter.

The present invention has been made in order to solve such a problem, and it is possible to improve the mutual positional accuracy of a pattern and a register mark, and even if any register mark configuration is adopted, It is an object of the present invention to provide a register mark creating device having a simple structure that facilitates creation and does not require a complicated process.

[0013]

[Means for Solving the Problems]

 In order to achieve the above object, the register mark creating device of the present invention is a device for creating a point-like register mark at a desired position on a printing plate, and is a plate surface on which the printing plate can be positioned and held. And a cutter head that can move in a two-dimensional direction on the plate surface, and a control unit that supplies a drive control signal to the cutter head. After the positioning command is given to the cutter head, it is configured to give a cutting operation command, and by the cutting operation, the light shielding of the laminated body composed of the adhesive layer / transparent film / light-shielding film that has been pasted on the printing plate in advance. It is characterized by the fact that a cut is formed in the film, leaving a point-like portion that serves as a register mark and allowing other portions to be peeled off.

[0014]

[Action]

 After the laminated body is pasted on the printing plate, the point-like portion that serves as a register mark on the light-shielding film is accurately positioned relative to the reference position by the cutter head positioning instruction and cutting operation command from the control unit. Created in. Therefore, the sticking accuracy of the light shielding film does not affect the relative positional relationship.

[0015]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration of a register mark creating apparatus according to an embodiment of the present invention, and FIG. 2 is a side view of a main body of the register mark creating apparatus.

The register mark device according to the embodiment of the present invention comprises a main body 20 that performs a register mark creating operation, and a control unit 30 including a personal computer 8 that drives and controls the operation of the main body.

The main body 20 has a printing plate holding plate 1 having a plate surface 1a capable of positioning and holding the printing plate, and a base 2 which is connected to the printing plate holding plate 1 via an angle adjusting shaft 2a. The printing plate holding plate 1 is configured so that its inclination angle θ can be freely adjusted within the range of 10 degrees to 90 degrees by the angle adjusting shaft 2a. A plurality of intake holes 1c are formed on the plate surface 1a, and the intake holes 1c communicate with an exhaust pump 3a installed on the base 2 via a tube 3b. The printing plate is sucked and held on the plate surface 1a of the printing plate holding plate 1 by the suction action of the exhaust pump 3a. A cutter head 7 that can move in two dimensions on the plate surface 1a is provided on the plate surface 1a. The cutter head 7 cuts a laminated film having a three-layer structure described later into a predetermined shape. It is equipped with a cutter blade to be used and a jig for attaching this cutter blade. In addition, the guide rails 6a and 6b are arranged parallel to each other on the upper side and the lower side of the plate surface 1a of the printing plate holding plate 1, and are vertically provided between the guide rails 6a and 6b, and both ends thereof are A support frame 5 that moves while sliding on the guide rails 6a and 6b is provided, and the cutter head 7 is attached to the support frame 5. The cutter head 7 is positioned by the longitudinal movement of the guide rails 6a and 6b of the support frame 5 and the longitudinal movement of the support frame 5 of the cutter head 7, and this movement is performed by a DC servo motor (see FIG. Drive (not shown). The driving of the DC servo motor and the cutting operation of the cutter head 7 are performed based on a drive control signal from the personal computer 8.

Further, on the plate surface 1a, pins 4 ... 4 for positioning the printing plate 9 as shown in FIG. 3 at a reference position on the plate surface 1a of the printing plate holding plate 1 are provided so as to project. When the pin holes 13 ... 13 provided in the printing plate 9 are fitted into the pins 4 ... 4, the printing plate 9 is positioned.

Further, on the printing plate 9, a register mark 17 for positioning the pattern film 18 and a register mark 16 for positioning the laminated film 15 for forming the register mark are drawn. The laminated film 15 has a three-layer structure as shown in FIG. 4 (a), and the bottom layer is a 0.01 mm thick adhesive coated with an acrylic adhesive for adhering to the PS plate. Agent 12 and a transparent film 11 made of a polyester film and having a thickness of 0.1 mm is laminated on the adhesive 12, and the transparent film 11 has a property of blocking transmission of ultraviolet light. It has a structure in which the light-shielding film 10 having a quality, which can be easily cut with a cutter or the like and which can be peeled, and which is made of a 0.02 mm-thick peel film is laminated. This peel film is formed by coating the transparent film 11 with a vinyl solvent, and the peel film and the transparent film 11 are attached by the adhesive force of this solvent. The adhesive strength is such that the peel film can be easily peeled off.

In the laminated film 15, the adhesive force of the adhesive 12 and the printing plate 9 and the adhesive force of the adhesive 12 and the transparent film 11 are larger than the adhesive force of the light shielding film 10 and the transparent film 11. The light-shielding film 10 alone can be easily peeled off from the light-shielding film 10.

Further, the adhesive 12 has a characteristic that the adhesive 12 does not remain on the printing plate when the laminated film 15 is peeled off from the printing plate, and does not impair the design on the printing plate. Is preferred.

The cutting operation of the laminated film 15 is performed by the control of the personal computer 8, the cutter head 7 is moved to a predetermined position, and is cut into a predetermined shape at that position. Then, as shown in FIG. 4B, the light-shielding film is peeled off from the transparent film layer 11, whereby the point-shaped light-shielding films 10a and 10b are left. The cutting position and the cutting shape are determined based on the data previously input to the personal computer 8. As this data, the register mark position and the shape set in advance for each printing plate of each color are shown. Information can be read from the memory, or new data can be input when creating the register mark.

In this embodiment, the pins 4 for positioning the printing plate 9 are provided so as to project. However, the present invention is not limited to this, and for example, a plurality of sets corresponding to pin hole intervals may be used. It is possible to use a push-up operation mechanism to allow the pins to be retracted and retracted.In this configuration, when the printing plate is placed on the plate surface, the plate surface should be flat without any protrusions. Since it can be mounted, it is easy to mount, and at the time of positioning, it is excellent in that it can be positioned with high accuracy by projecting a predetermined set of pins.

Next, a method of creating a register mark using the register mark creating apparatus having the above configuration will be described below with reference to the drawings. FIG. 5 shows a flow chart of the process of creating the register mark. 6 to 8 are views for explaining the process of creating this register mark.

First, the mount to be used to create the register mark is selected. Next, the personal computer retrieves the position data and shape data of the register mark corresponding to the selected mount, but if these data are not stored, it is necessary to newly input these data. However, even if there is data, these data may be newly input.

Next, the PS plate 9 is positioned on the plate surface by fitting the pin holes 13 ... 13 of the PS plate (printing plate) 9 into the pins on the plate surface. Then, as shown in FIG. 6, a registration mark for sticking the film on the PS plate 9 is drawn. In this step, the register marks 17 for the original film and the registration marks 16 for sticking the light shielding film for the register marks are drawn. When drawing, use a ball-point pen attached to this device (ST10).

Next, as shown in FIG. 7, the laminated film 15 for the register mark is attached to the PS plate 9 at the approximate position with the mark 16 as a guide, and is formed in a predetermined shape with the cutter head at a predetermined position. After cutting, the light-shielding film is peeled off to form the point-shaped light-shielding film 10a. In this step, the position data and shape data that give the position to be cut are preset, and the operator uses this data to automatically create the register mark (ST11).

Next, as shown in FIG. 8, after sticking the film original plate 80 on the PS plate 9 using the register marks 17 for the film original plate as a guide, baking is performed, and then the light-shielding film is peeled off. The register mark 14a and the pattern are completed (ST12).

In the above steps, in this step, the register mark is automatically created based on the preset position data and shape data of the register mark for the laminated film attached to the printing plate. It can be performed and there is no variation due to the operator. In the present embodiment, the positioning accuracy of the created register mark could be as accurate as ± 0.01 mm. Further, unlike the conventional case, there is no need to perform a complicated operation such as selection of a mask, and the mental burden on the operator is reduced. In addition, register mark position data and shape data can be input at any time even if they have not been set in advance, so it is possible to deal flexibly with changes in the setting data, and even in such cases, automatic operation with high accuracy is possible. Needless to say, register marks can be created.

[0030]

[Effect of device]

 As described above, according to the register mark creating apparatus of the present invention, the holder having the plate surface on which the printing plate can be positioned and held, and the cutter head which can move in two dimensions on the plate surface. And a control unit for supplying a drive control signal to the cutter head, the control unit being configured to give a positioning command to the cutter head based on the input data and then a cutting operation command. Depending on the operation, the light-shielding film of the laminate consisting of the adhesive layer / transparent film / light-shielding film, which was previously adhered to the printing plate, has a cut that allows the other part to be peeled off, leaving the point-like part to be the register mark. Since it is configured to be formed, after the laminated body is pasted on the printing plate, the controller commands positioning of the cutter head and cutting operation fingers. Accordingly, the light shielding film can be made a point-shaped portion serving as register marks to the exact relative position from the reference position. Therefore, the lamination accuracy of the laminated film does not affect the relative positional relationship of the register marks, and the mutual positional accuracy of the pattern and the register mark can be increased. In addition, the cutting operation command can be given to any register mark structure by inputting data adapted to the structure, so that it can be created. Moreover, the register mark creating process using the register mark creating apparatus of the present invention does not require a complicated process, labor is reduced, and time can be saved.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a register mark creating device according to an embodiment of the present invention.

FIG. 2 is a side view of the main body of the register mark creating apparatus according to the embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a printing plate applied to an embodiment of the present invention.

FIG. 4A is a vertical cross-sectional view showing the structure of a light-shielding film applied to an embodiment of the present invention, and FIG. 4B is a diagram illustrating a method of forming a register mark by the light-shielding film.

FIG. 5 is a flowchart for explaining a process of creating a register mark using the register mark creating device of the embodiment of the present invention.

FIG. 6 is a diagram for explaining a method of creating a register mark using the register mark creating device of the embodiment of the present invention (corresponding to the step of FIG. 5ST.10).

FIG. 7 is a diagram for explaining a method of creating a register mark using the register mark creating device of the embodiment of the present invention (corresponding to the step of FIG. 5ST.11).

FIG. 8 is a diagram for explaining a method of creating a register mark using the register mark creating apparatus of the embodiment of the present invention (corresponding to the step of FIG. 5ST.12).

FIG. 9 is a flowchart showing a general printing process.

FIG. 10 is a diagram for explaining a pattern transfer method in a conventional example.

FIG. 11 is a diagram showing a configuration of register marks in a conventional example.

FIG. 12 is a flowchart for explaining a process of creating a register mark in a conventional example.

FIG. 13 is a diagram for explaining a method of creating a register mark using the conventional register mark creating device (corresponding to the step of FIG. 12ST.1).

FIG. 14 is a diagram for explaining a method of creating a register mark using the conventional register mark creating device (corresponding to the step of FIG. 12ST.2).

FIG. 15 is a diagram for explaining a method of creating a register mark using the conventional register mark creating device (corresponding to the step of FIG. 12, ST.4).

[Explanation of symbols]

 1 ... Holder 1a ... Plate surface 7 ... Cutter head 8 ... Personal computer 9 ... Printing plate 15 ... Laminated film 10 ... Shading film 11 ... Transparent film 12 ... Adhesive layer

Claims (1)

[Scope of utility model registration request] 1. A device for forming a point-shaped register mark at a desired position on a printing plate, comprising a holding body having a plate surface capable of positioning and holding the printing plate, and 2 on the plate surface. It is equipped with a cutter head that can move in the dimensional direction and a control unit that supplies a drive control signal to the cutter head.The control unit gives a positioning command to the cutter head based on input data and then sends a cutting operation command. The light-shielding film of the laminate composed of the adhesive layer / transparent film / light-shielding film, which is configured to be applied and is previously attached to the above printing plate by the cutting operation, leaves a point-like portion serving as a register mark and other portions. A register mark forming device, characterized in that a cut is formed so that the peeling can be made.