JP6749198B2 - Printing jig and method for manufacturing printed matter - Google Patents

Description

The present invention relates to a printing jig and a method for manufacturing a printed matter.

Patent Document 1 discloses a planar or three-dimensional printing material placement means having a plurality of openings for positioning and fixing a printing material having a three-dimensional shape with its printing surface facing the ink applying means, and Of the printing medium mounting means including a rod-shaped body that is detachably engaged and erected in a plurality of openings of the printing medium and the printing medium placing means, and in a direction orthogonal to the moving direction of the ink applying means, in conjunction with the inkjet printer. There is described a printing jig for three-dimensional printed matter, which comprises a bed fixing means that is detachably fixed on a printing bed that moves to the.

JP2012-000603A

For example, a display plate such as a timepiece dial is manufactured by printing a design such as a color or a pattern by tacho printing or screen printing. If ink jet printing is used for the production of the display board, printing that cannot be expressed by tacho printing or screen printing can be performed. However, there are various shapes and designs of display boards, and in order to actually print them, the jig for fixing the printed material (printing object) must be adjusted to the shape of each individual printed material. It must be made of metal one by one. Therefore, inkjet printing is a costly approach.

In general, when an object to be printed is placed on a stage and inkjet printing is performed, it is difficult to always print at the same position unless the object to be printed is fixed, and a printing deviation may occur. In particular, since many timepiece parts such as a dial plate of a timepiece are small in size, it is necessary to accurately position an object to be printed at the time of printing in order to prevent occurrence of print misalignment. The printing jig of Patent Document 1 is used for an ink jet printer, but in consideration of use for printing of timepiece parts, it is necessary to prevent displacement of the printed material placed on the printed material placing means. In addition, a means for positioning the printing material more precisely is required. Further, the printing jig of Patent Document 1 may not always be able to flexibly deal with inkjet printing on a substrate having various shapes and sizes.

Therefore, the present invention provides a printing jig that can be easily manufactured according to the shape and size of a printed material and that can position the printed material with respect to an inkjet printing machine with high accuracy, and a method of manufacturing a printed material using the same. The purpose is to

A printing jig that supports a printing material and is installed in an inkjet printing machine when printing is performed on the printing material. A mounting surface on which the printing material is mounted and a positioning for positioning the printing material. And a convex portion which is formed in advance on the mounting surface by an inkjet printing method so as to contact at least a part of a side portion of the printing material when the printing material is mounted on the mounting surface. There is provided a printing jig characterized by having a positioning part.

In the above printing jig, the printing object is a flat plate-shaped member, and the convex portions are provided at two or more positions on the mounting surface so that the printing object can be positioned in two directions orthogonal to each other and a rotation direction. Preferably, it is formed at a position where it comes into contact with the side portion of the.

In the above printing jig, the printing object is the display plate, the side portion of the display plate has the uneven portion formed in the circumferential direction of the display plate in an uneven shape, and the convex portion is at least the unevenness of the display plate. It is preferably formed at a position in contact with the shaped portion.

In the above printing jig, the display plate is a timepiece dial, and the uneven portion of the dial is an engaging portion that engages with the movement to which the dial is fixed or the inner frame that holds the movement. It is preferable that the portion is formed at least at a position in contact with the engaging portion of the dial.

In the above-mentioned printing jig, it is preferable that the dial has a plurality of engaging portions on its side portions, and the convex portions are formed at positions contacting at least the plurality of engaging portions, respectively.

In the above printing jig, the display plate is a timepiece dial, the uneven portion of the dial has a concave portion formed at the 12 o'clock position on the outer periphery of the dial, and the convex portion has a concave portion. It is preferably formed so as to come into contact with the outer circumference of the dial at the formed portion.

In the above-mentioned printing jig, it is preferable that the dial has a central hole, and the convex portion is further formed at a position in contact with the inner wall of the central hole of the dial.

In the above printing jig, the convex portion has a bank-like shape that contacts the side portion of the display plate placed on the mounting surface and surrounds the display plate, and the positioning portion further has the second convex portion. However, it is preferable that the second convex portion has a shape similar to the convex portion and is formed in advance by an inkjet printing method so as to surround the convex portion on the outer peripheral side of the convex portion on the mounting surface. ..

In the above printing jig, it is preferable that the convex portion has a cutout portion in a part in the circumferential direction.

In the above printing jig, the uneven portion of the display plate is asymmetric with respect to the center of the display plate, and the convex portion has an asymmetric uneven portion so that the display plate is not placed on the mounting surface with the front and back reversed. Is preferably formed at a position corresponding to.

In the above-mentioned printing jig, a plurality of display plates to which different printings are applied can be placed side by side on the placement surface, and the placement positions of the respective display plates on the placement surface can be set at the positions. It is preferable that printing corresponding to printing performed on the display plate is performed in advance.

One of the above printing jigs is formed by forming a convex portion by an inkjet printing method on a mounting surface of a jig plate or a jig sheet that has a mounting surface of a printed material and can be installed in an inkjet printing machine. The step of forming, placing the substrate to be placed on the mounting surface so that at least a part of the side portion of the substrate contacts the convex portion, and positioning the substrate with the convex portion as a reference, And a step of performing printing by an inkjet printing method.

In the step of printing, it is preferable to use the same printing machine as the step of forming the printing jig.

According to the present invention, a printing jig can be easily manufactured in accordance with the shape and size of a printed material, and the printed material can be accurately positioned with respect to the inkjet printing machine.

FIG. 3 is a plan view and a sectional view of the jig plate 1. 3 is a plan view of the jig sheet 2. FIG. FIG. 6 is an enlarged view of the positioning part 20 and the dial 60, and a diagram for explaining an example of a method of fixing the dial 60 to the positioning part 20. It is a figure for demonstrating the engaging part of the dial 60 and the movement of a timepiece. It is a top view of another jig sheet 2', 2''. It is a top view of another jig sheet 3. FIG. 6 is an enlarged view of the positioning part 50 and the dial plate 70, and a diagram for explaining an example of a method of fixing the dial plate 70 to the positioning part 50. It is a top view of another jig sheet 3', 3''. 7 is a conceptual diagram for explaining an example of a printing method of a dial 60. FIG. 6 is an exploded perspective view of the wristwatch 90. FIG.

Hereinafter, a printing jig and a method for manufacturing a printed matter will be described with reference to the drawings. However, it should be understood that the invention is not limited to the drawings or the embodiments described below.

In the following, an example will be mainly described in which the printing object is a dial of a timepiece (that is, a dial substrate that is printed to become a dial). A timepiece dial is an example of a display board. This printing jig is a jig for inkjet printing, which supports an object to be printed and is installed in an inkjet printing machine when printing is performed on the object. Specifically, this printing jig has a convex portion formed by inkjet printing on a sheet (jig sheet) or plate (jig plate) on which a material to be printed is placed. In the printing process of the dial using this printing jig, the material to be printed is placed on the jig sheet or the jig plate, and the material to be printed is positioned and fixed by the convex parts, and then inkjet printing is performed. A design layer is formed on the material to be printed.

1A and 1B are a plan view and a sectional view of the jig plate 1, respectively. The jig plate 1 functions as a tray that supports a jig sheet on which a dial, which is an object to be printed, is supported, and is installed in an inkjet printing machine when printing the dial. As an example, the jig plate 1 has a length and width of about several tens of cm and a thickness of about several mm. An area 10 that covers almost the entire upper surface of the jig plate 1 is a mounting surface on which the jig sheet is mounted. A large number of through holes 11 for ventilation for fixing the jig sheet to the jig plate 1 are formed on the mounting surface 10, and the mounting surface 10 around the mounting surface 10 such as four corners of the jig plate 1 is formed. A through hole (not shown) for fixing the jig plate 1 itself is formed. The through-holes 11 are small, for example, about a dozen mm, so as to cover the plurality of through-holes 11 no matter where the printed matter is placed on the placement surface 10, according to the size of the dial as the printed matter. It is formed with a pitch.

FIG. 2 is a plan view of the jig sheet 2. The jig sheet 2 is a sheet-like member that supports a dial plate that is a material to be printed and is placed on the placement surface 10 of the jig plate 1, and has a positioning portion 20 for positioning the dial plate. .. The jig sheet 2 is positioned with respect to the jig plate 1 by, for example, aligning the right angle of the corner with the corner of the mounting surface 10 of the jig plate 1. In the illustrated example, the printing jig includes a jig plate 1 and a jig sheet 2. For this reason, the upper surface of the jig sheet 2 can also be referred to as a mounting surface on which the material to be printed is mounted.

Unlike the illustrated example, the positioning portion 20 may be formed directly on the jig plate 1 and the dial plate may be placed on the jig plate 1 without using the jig sheet 2. In this case, the printing jig is composed of only the jig plate 1. However, by preparing a plurality of jig sheets 2 for one jig plate 1, while the dial is printed using one set of jig plates 1 and jig sheets 2, Since dial plates can be arranged and prepared on another jig sheet 2, there is an advantage that manufacturing efficiency is improved. If the jig sheet 2 can be fixed by some method, the jig sheet 2 may be directly installed in the ink jet printing machine to print without using the jig plate 1. In this case, the printing jig is composed of only the jig sheet.

A plurality of dials can be placed side by side on the jig sheet 2, and FIG. 2 shows an example in which six positioning portions 20 are formed so that six dials can be placed. ing. The positioning portion 20 is composed of bank-shaped convex portions 30 and 40, which are formed in accordance with the shape and size of the dial placed on the positioning portion 20. The shapes and sizes of the positioning portions 20 may all be the same or may be different from each other.

3A to 3C are enlarged views of the positioning portion 20 and the dial 60, and diagrams for explaining an example of a method of fixing the dial 60 to the positioning portion 20.

The dial plate (dial plate substrate) 60 is, for example, a substantially circular flat plate-shaped (disc-shaped) member having a diameter of about several cm and a thickness of about several hundred μm. The printing surface and the mounting surface of the dial 60 may be formed to be smooth, may have a pattern or the like formed in a concavo-convex shape, or may be formed in a satin shape. In the example shown in FIG. 3A, the dial plate 60 has six concave and convex portions on the side surface (side portion), and has a through hole (a central hole 67 for passing the pointer shaft) in the center. Like the inner wall of the center hole 67, the wall portion located inside the dial 60 is also an example of the side portion.

Hereinafter, these concave and convex portions will be referred to as concave and convex portions 61 to 66 in the clockwise order from the position corresponding to 12:00 on the dial 60. In the illustrated example, the uneven portions 61 to 66 are asymmetric with respect to the center of the dial 60. The uneven portions 61, 63, 64, 66 project in the circumferential direction from the circular outer peripheral portion of the dial 60, and the uneven portions 62, 65 project in the circumferential direction from the circular outer circumferential portion of the dial 60, and It has a recess (a recess 65A described later) in the center.

The bank-shaped convex portion 30 is a convex portion that constitutes the positioning portion 20, and is three-dimensionally printed in advance by an inkjet printing method so as to rise on the upper surface of the jig sheet 2. The bank-shaped convex portion 30 is provided outside the dial plate 60 so that the dial plate 60, which is an object to be printed, comes into contact with a side portion of the dial plate 60 when the dial plate 60 is placed on the upper surface (mounting surface) of the jig sheet 2. It is formed on the upper surface of the jig sheet 2 along the radial shape. More specifically, the bank-shaped convex portion 30 has such a shape and size that the dial plate 60 is fitted inside so that the entire outer periphery of the dial plate 60 can be fixed. 66 has six concavo-convex parts to which each fits. Hereinafter, the uneven portions of the bank-shaped convex portion 30 corresponding to the concave-convex portions 61 to 66 are referred to as jig concave-convex portions 31 to 36, respectively.

In the illustrated example, the bank-shaped convex portion 30 surrounds the entire circumference of the dial 60 and is in contact with the entire side portion of the dial 60. However, the bank-shaped convex portion 30 does not necessarily surround the entire circumference of the dial 60, and may be formed at a position at least in contact with the uneven portions 61 to 66 of the dial 60. Alternatively, the bank-shaped convex portion 30 is a minimum so that the dial plate 60 can be positioned and fixed in two directions (XY directions) and a rotation direction (θ direction) orthogonal to each other on the upper surface (mounting surface) of the jig sheet 2. As long as it is formed on the side surface of the dial 60, it may be formed at a position where it comes into contact with two uneven portions (that is, two or more of the uneven portions 61 to 66).

The bank-shaped convex portion 40 is an example of the second convex portion, and constitutes the positioning portion 20 together with the bank-shaped convex portion 30. The bank-shaped convex portion 40 is also three-dimensionally printed in advance by the inkjet printing method together with the bank-shaped convex portion 30 so as to be raised on the upper surface of the jig sheet 2. The bank-shaped convex portion 40 is formed on the outer peripheral side of the bank-shaped convex portion 30 so as to surround the bank-shaped convex portion 30, has the same shape as the bank-shaped convex portion 30, and is more than the bank-shaped convex portion 30. One size larger. That is, the bank-shaped convex portion 40 has jig concave-convex portions 41 to 46 having shapes similar to the jig concave-convex portions 31 to 36 of the bank-shaped convex portion 30. The bank-shaped convex portion 40 does not come into contact with the dial plate 60 placed on the jig sheet 2 and does not position and fix the dial plate 60, but the jig of the bank-shaped convex portion 30 is provided to the operator. It is provided as a mark for making the positions of the uneven portions 31 to 36 easy to understand.

Since the print head moves at a high speed in the inkjet printing machine to generate wind, if the dial 60 is not fixed, the dial 60 may move during printing to cause a positional deviation. Therefore, the printing height (thickness) of the positioning portion 20 (particularly the bank-shaped convex portion 30) needs to be large enough to fix the dial 60 on the jig sheet 2. However, if the thickness of the positioning portion 20 is too large, it is difficult for an operator to attach and detach the dial 60, so the thickness of the positioning portion 20 should be an appropriate size that does not impair the workability. Is preferred. From these things, it is preferable that the thickness of the positioning portion 20 is approximately the same as the thickness of the dial 60.

As shown in FIGS. 3B and 3C, in order to fix the dial 60 to the positioning portion 20, the uneven portions 61 to 66 of the dial 60 are replaced with the jig uneven portions of the bank-shaped convex portion 30. It suffices if it is fitted into 31 to 36. Since the operator only has to place the dial 60 on the jig sheet 2 so as to assemble the puzzle, the dial 60 can be easily positioned and fixed. In particular, since the bank-shaped convex portion 40 larger than the bank-shaped convex portion 30 is provided as a mark, it is easy for the operator to confirm the positions of the jig concave and convex portions 31 to 36, and the dial 60 is placed on the jig sheet 2. The accuracy and workability of the work placed on the table are improved. Further, in the illustrated example, since the concave-convex portions 61 to 66 and the jig concave-convex portions 31 to 36 are respectively formed asymmetrically, when the operator tries to place the dial 60 with the front and back reversed, the concave-convex pattern is formed. The shaped portions 61 to 66 cannot be fitted into the jig uneven portions 31 to 36. Therefore, it is possible to prevent the operator from making a mistake in turning the dial 60 upside down.

The inkjet printer drops ink on the jig sheet 2 and cures it. At this time, since the ink spreads around because of the wettability of the ink, the surfaces of the bank-shaped protrusions 30 and 40 naturally become curved surfaces, and the vertical cross-sections of the bank-shaped protrusions 30 and 40 are rounded. It will have a different shape. Since the dial is guided by the curved surface, by using the inkjet printing method, the bank-shaped convex portions 30 and 40 are naturally formed so that the dial can be easily attached and detached.

Further, since the bank-shaped convex portions 30 and 40 are formed by inkjet printing, their colors can be freely selected. Therefore, if the bank-shaped convex portions 30 and 40 are formed on the jig sheet 2 in a conspicuous color, the operator can easily recognize the positions of the jig concave and convex portions 31 to 36, and the dial plate 60 is placed. Work becomes easier.

4(A) to 4(C) are views for explaining the engaging portion between the dial 60 and the movement of the timepiece. A plurality of engaging portions for engaging the dial 60 with the movement of the timepiece via the bosses are formed on the side of the dial 60. In the illustrated example, in the dial 60, the uneven portions 62 and 65 correspond to the engaging portions that engage with the movement to which the dial 60 is fixed.

FIG. 4A is an enlarged view of the uneven portion 65. The concave-convex portion 65 is formed with a concave portion 65A through which a fixing boss is inserted. The uneven portion 62 on the opposite side of the uneven portion 65 across the center of the dial 60 also has the same shape as the uneven portion 65. Further, FIG. 4B shows a state where the dial 60 is fixed to the middle frame 81 of the timepiece. Although not shown in FIG. 4B, at this time, the movement of the timepiece is arranged under the dial 60, and the dial 60 is fixed to the boss fitted in the concave-convex portions 62 and 65. .. FIG. 4C is a partially enlarged view of FIG. 4B and shows a state in which the boss 82 is fitted in the recess 65</b>A of the uneven portion 65. Since the boss 82 is formed on the movement or the inner frame 81 that holds the movement, the dial 60 is fixed to the movement via the boss 82.

In this way, the dial plate 60 is fixed to the movement at the two locations of the uneven portions 62 and 65. On the outer periphery of the dial plate 60, the engaging portion where the dial plate 60 engages with the movement is strictly controlled, and therefore the jig sheet 2 has at least the uneven portions 62 and 65 which are the engaging portions. May be used for positioning and fixing the dial 60. That is, the bank-shaped convex portion 30 does not necessarily have to surround the entire circumference of the dial 60 as described above, but at least the plurality of engaging portions (concave-shaped portions 62 and 65) of the dial 60 are respectively provided. It is preferably formed corresponding to the contact position. In particular, by utilizing each of the plurality of engaging portions also for the positioning of printing, the positional deviation of printing is further less likely to occur. The concavo-convex shaped portions that are strictly dimensionally controlled and serve as the engaging portions are not limited to the concavo-convex shaped portions 62 and 65, and may be provided at other positions such as formed at the 12 o'clock position.

For example, when printing a transparent dial to make a blue dial, first, blue is printed on the back side of the transparent dial, and then white is printed so that the blue becomes clearer. After that, the dial is turned upside down, and characters (hour characters) are printed on the front side. As described above, in the actual printing process, both sides of the dial are often printed, and in that case, a jig sheet for the front surface and a jig sheet for the back surface are prepared. The jig sheet for the surface has a bank-like convex portion in which the jig concave-convex portion is formed at a position that matches the concave-convex shape portions 61 to 66 when the front (front) surface of the dial 60 is faced up. The back surface jig sheet has a bank-shaped convex portion in which the jig concave and convex portions are formed at positions matching the concave and convex portions 61 to 66 when the back surface of the dial 60 is turned up.

Although not shown, an identification code such as a bar code is attached to the jig sheet 2, and the identification code is associated with information such as the date of manufacture and the manufacturing conditions of the dial 60, so that the jig sheet 2 can be displayed. It may have a traceability function. Further, in general, the dial 60 is provided with a component code, and the component code and the identification code of the jig sheet 2 may be associated with each other.

Further, in the above, the example in which the uneven portions 61 to 66 are convex portions projecting from the circular outer peripheral portion of the dial 60 is shown, but the uneven portion is recessed from the circular outer peripheral portion of the dial 60. It may be a bank-shaped convex portion having a concave portion having a shape corresponding to the concave portion in the circumferential direction. Even in this case, the dial 60 can be similarly positioned.

5A and 5B are plan views of different jig sheets 2'and 2", respectively. The positioning portion 20' (bank-shaped convex portion 30') of the jig sheet 2'shown in FIG. 5(A) has a cutout portion 37 in a part in the circumferential direction. Like the bank-shaped convex portion 30 ′, the bank-shaped convex portion does not have to surround the entire circumference of the dial 60, and it is better for the operator to have the cutout portion 37 at a place where there is no jig uneven portion. It becomes easy to take out the dial 60 from the jig sheet.

The positioning portion 20″ of the jig sheet 2″ shown in FIG. 5(B) is provided at a mounting position of each dial 60, and is a base corresponding to printing performed on the dial 60 placed at the position. The print 13 is applied in advance. Thus, the jig sheet does not necessarily have to be plain. In general, since the shape and size of the dial 60 differ depending on the product, particularly when printing a plurality of dials 60 having different colors and designs (printing specifications are different from each other) at a time, It is preferable that the same printing as that of the dial plate 60 of the finished product is applied to the jig sheet as the base printing 13. Further, for example, when a plurality of types of dial plates 60 that have different outer diameter shapes or are colored differently from each other are placed on the jig sheet, the base printing 13 may be similarly applied. .. As a result, it is easy for the operator to understand which dial 60 should be placed and where, and it is possible to prevent the operator from making a mistake in the placement position of the dial 60. The accuracy and workability of the work placed on the table are improved.

FIG. 6A and FIG. 6B are plan views of another jig sheet 3. Similarly to the jig sheet 2, the jig sheet 3 is a sheet-like member that supports a dial plate that is an object to be printed and is placed on the placement surface 10 of the jig plate 1. However, the jig sheet 3 has a shape of a positioning portion for positioning the dial, and a base printing corresponding to the printing performed on the dial placed on each dial at the placement position of each dial. 14 is provided in advance, which is different from the jig sheet 2. The printing jig may be composed of the jig plate 1 and the jig sheet 3.

A plurality of dials can be placed side by side on the jig sheet 3, and in FIG. 6A, when three positioning portions 50 are formed so that three dials can be placed. An example is shown. Since the jig sheet 3 also has the base print 14, it is easy for the operator to know which dial should be placed and where, the accuracy and workability of the work of placing the dial on the jig sheet. Is improved.

FIG. 6(B) shows the position of the dial placed on the jig sheet 3 by a broken line without describing the underprint 14 in order to clearly show the structure of the positioning portion 50 of the jig sheet 3. It is a thing. The positioning portion 50 is composed of a central convex portion 51 and an outer peripheral convex portion 52.

7A to 7E are enlarged views of the positioning unit 50 and the dial plate 70, and diagrams for explaining an example of a method of fixing the dial plate 70 to the positioning unit 50.

The dial plate (dial plate substrate) 70 is, for example, a substantially circular flat plate-shaped (disc-shaped) member having a diameter of about several cm and a thickness of about several hundred μm. In the example shown in FIG. 7A, the dial plate 70 has six concavo-convex portions on the side surface (side portion) and has a through hole (a central hole 77 for passing the pointer shaft) in the center. Hereinafter, these concave and convex portions will be referred to as concave and convex portions 71 to 76 in the clockwise order from the position corresponding to 12:00 on the dial 70. In particular, the uneven portion 71 is a concave portion (notch) formed at the 12:00 position on the outer periphery of the dial 70, and this concave portion is a reference for positioning the dial in the conventional tacho printing or screen printing process. It is used as and is strictly controlled in size.

FIG. 7D is an enlarged view of the central convex portion 51. The central convex portion 51 has a hemispherical shape and is formed at a position in contact with the inner wall of the central hole 77 of the dial 70. The positioning portion of the jig sheet is not limited to the side portion on the outer peripheral side of the dial, but may be the one that comes into contact with the inner wall of the through hole of the dial like the central convex portion 51. The central convex portion 51 having a hemispherical shape has an advantage that the spherical surface serves as a guide surface and an operator can easily attach the dial plate 70 to the jig sheet 3.

FIG. 7E is an enlarged view of the outer peripheral protrusion 52. The outer peripheral convex portion 52 has, for example, a triangular prism shape, and is formed in the concave portion (notch) of the concave-convex shaped portion 71 when the dial plate 70 is mounted on the upper surface (mounting surface) of the jig sheet 3. It is formed so as to come into contact with the outer periphery of the dial plate 70 at the place where the fitting and the uneven portion 71 are formed. The printing height (thickness) of the central convex portion 51 and the outer peripheral convex portion 52 that configure the positioning portion 50 is preferably similar to the thickness of the dial 70, similar to the positioning portion 20.

As shown in FIGS. 7(B) and 7(C), in order to fix the dial 70 to the positioning portion 50, the concave-convex shaped portion 71 and the central hole 77 of the dial 70 are set to the central convex portion 51 and the outer peripheral convex portion, respectively. It may be fitted in the portion 52. Even when the jig sheet 3 is used, the operator only has to place the dial 70 on the jig sheet 3 so as to assemble a puzzle, so that the dial 70 can be easily positioned and fixed. Since the positioning portion 50 is composed of only the central convex portion 51 and the outer peripheral convex portion 52, the structure is simpler than that of the positioning portion 20 of the jig sheet 2, and the dial plate 70 is positioned and fixed with fewer convex portions. It is possible to

Unlike the jig sheet 2, the jig sheet 3 can be used both when printing the front (front) surface of the dial plate and when printing the back surface. Which of the jig sheets 2 and 3 is used can be appropriately selected depending on the outer diameter shape of the dial plate and the like.

Instead of the center hole 77, a hole for passing a pointer shaft for a small needle, a window hole for calendar display, or the like may be used for positioning the dial 70. In this case, it is possible to form a convex portion at a position on the jig sheet 3 which is in contact with the inner walls of these holes when the dial plate 70 is placed, and position the dial plate 70 by the convex portion. ..

FIG. 8A and FIG. 8B are plan views of different jig sheets 3 ′ and 3 ″, respectively. The positioning portion 50 ′ of the jig sheet 3 ′ shown in FIG. 8A does not have the central convex portion 51, but has only the outer peripheral convex portion 52. Depending on the type of inkjet printer used and the type of dial to be printed, if the dial can be reliably positioned and fixed only by the outer peripheral portion, the positioning portion does not necessarily have a central convex portion like the positioning portion 50'. You don't have to. Further, the positioning portion 50″ of the jig sheet 3″ shown in FIG. 8(B) has the same central convex portion 51 and outer peripheral convex portion 52 as those of the positioning portion 50, and the central convex portion 51 is sandwiched therebetween. It has an outer peripheral protrusion 53 formed on the side opposite to the outer peripheral protrusion 52. Like the positioning portion 50 ″, when the dial has a plurality of outer peripheral projections and contacts the dial at a plurality of points on the outer periphery of the dial, the dial can be positioned and fixed more reliably.

Further, instead of the outer peripheral convex portion 52, for example, the outer peripheral convex portions are provided at two locations on the jig sheet 3 that are in contact with the side portions of the uneven portion 71 on the 3 o'clock side and the 9 o'clock side when the dial 70 is placed. It is also possible to form a portion and fix the dial 70 by sandwiching the concave-convex shaped portion 71 by these outer peripheral convex portions.

9A to 9E are conceptual diagrams for explaining an example of the printing method of the dial 60. Hereinafter, an example of a method for manufacturing a printed material (character plate) using the jig sheet 2 will be described with reference to these drawings. The same applies when using the jig sheets 2', 2'', 3, 3', 3''.

To print the dial, the worker first places the jig sheet 2 of FIG. 2 on the jig plate 1 of FIG. 1 and positions it as shown in FIG. 9(A). Is installed in the inkjet printer 100. The inkjet printer 100 is, for example, a UV digital inkjet printer, and expresses colors with a combination of four colors of YMCK and performs color printing.

Then, as shown in FIG. 9(B), the operator operates the inkjet printing machine 100 so that the positioning portion 20 (bank-shaped) is formed on the upper surface (the mounting surface of the dial plate) of the jig sheet 2 by the inkjet printing method. The convex portions 30, 40) are formed. The bank-shaped convex portions 30 and 40 are formed by performing overprinting a plurality of times at the same position on the jig sheet 2. At that time, it is not necessary to print with the same color every time, but it is also possible to print with color only once at the first time and with transparent ink after the second time. Due to the relationship of ink viscosity, three-dimensional printing can be easily realized using transparent ink.

Subsequently, the operator takes out the jig plate 1 and the jig sheet 2 from the ink jet printing machine 100, and as shown in FIG. The dial plate 60 is fitted into the portion 30, and the dial plate 60 is positioned and fixed on the basis of the bank-shaped convex portion 30. At this time, the dial 60 is placed on the upper surface (mounting surface) of the jig sheet 2 so that the uneven portions 61 to 66 on the side portions of the dial 60 contact the jig uneven portions 31 to 36 of the bank-shaped projection 30. ).

Next, as shown in FIG. 9(D), the operator places the jig sheet 2 on which the dial plate 60 is placed on the jig plate 1 again and positions the jig sheet 2, and then the operator positions the jig sheet 2. Install inside. Then, the operator operates the inkjet printing machine 100 to print on each dial 60 by the inkjet printing method. As a result, the printing of the dial 60 is completed, as shown in FIG.

When the positioning portion 20 is directly formed on the jig plate 1 without using the jig sheet 2, the jig sheet 2 of FIG. 2 is placed on the jig plate 1 of FIG. 1 in FIG. 9A. The step of placing and positioning is omitted, and in FIG. 9C, the dial plate 60 before printing is directly placed on the jig plate 1 on which the positioning portion 20 is formed.

In the step of printing the dial (FIG. 9E), an inkjet printer different from the step of forming the positioning portion 20 (FIG. 9B) may be used, but the positioning portion 20 is formed. It is preferable to use the same inkjet printer 100 as the process. If the same inkjet printing machine 100 is used in the two steps, the misalignment between the positioning unit 20 and the printing on the dial is reduced, so that the misalignment can be suppressed to, for example, about 10 μm or less.

When a dial having the same printing specifications is repeatedly printed, the jig sheet 2 having the positioning portion 20 formed in the step shown in FIG. 9B can be repeatedly used in the steps after FIG. 9C. .. That is, the steps of FIGS. 9A and 9B can be performed first, and then the steps of FIGS. 9C to 9E can be repeated.

Each of the jig sheets 2 and 3 described above can be easily manufactured by an inkjet printing method. If the jig sheets 2 and 3 are used, it is possible to print a dial plate making the most of the advantages of the inkjet printing method.

FIG. 10 is an exploded perspective view of the wristwatch 90. In addition to the dial plate (the dial plate 95), the timepiece component (printing material) that can use the printing jig described above includes, for example, the windshield 91, the dial ring 92, the bezel 93 (the windshield) shown in FIG. There are a ring-shaped part around the glass 91), a pointer (hour hand 94A, minute hand 94B, second hand 94C), a reflector (not shown), a back cover 97, a back cover inner surface sticker 98, a band 99, and the like. The reflecting plate is a semi-transmissive member laid on the lower surface of the dial for the purpose of expressing metal, and transmits light to the solar cell of the timepiece arranged on the back surface. By performing inkjet printing using the above-mentioned printing jig, full-color printing on such a reflector can be easily realized.

In the jig sheets 2, 2 ′, 2 ″, 3, 3 ′ and 3 ″ shown in FIGS. 1 to 8, the jig plates 60, 70 are formed corresponding to the strictly controlled portions. The jig uneven portions 32 and 35 or the outer circumferential convex portions 52 and 53 thus formed are used for positioning and fixing the dial plates 60 and 70. However, depending on the allowable range of printing misalignment, the jig uneven portion or the outer peripheral projection formed corresponding to the side portion of the dial which is not strictly dimensioned is used for positioning and fixing the dials 60, 70. It is also possible.

Further, the jig sheets 2, 2', 2'', 3, 3', 3'' are made of a material having a weak intermolecular force with respect to the ink used for forming the positioning portions 20, 50, 50', 50''. Alternatively, if the jig plate 1 is formed, the positioning parts 20, 50, 50', 50'' can be peeled off without damaging the mounting surface with a plastic spatula. For example, when the ink contains an acrylic resin, the jig sheet 2, 2′, 2″, 3, 3′, 3″ or the jig plate 1 may be replaced with polyacetal resin, aluminum, stainless steel, a cylinder, or the like. It may be made of metal. Another positioning part 20, 50, 50', 50'' is formed again on the jig sheet 2, 2', 2'', 3, 3', 3'' or the jig plate 1 from which the positioning part is peeled off. can do. That is, the jig sheets 2, 2′, 2″, 3, 3′, 3″ or the jig plate 1 are repeatedly formed with positioning portions 20, 50, 50′, 50″ and reused. can do.

In each of the above-described embodiments, the case where the display plate is a dial for a watch has been described. However, the jig plate and the jig sheet described above are ink-jets for other display plates such as measuring instruments for vehicles. It can also be applied to printing.

1 Jig plate 2, 2', 2'', 3, 3', 3'' Jig sheet 10 Mounting surface 13, 14 Base printing 20, 20', 20'', 50, 50', 50'' Positioning part 30, 30', 40 Bank-shaped convex part 31-36, 41-46 Jig concave-convex part 51 Central convex part 52, 53 Peripheral convex part 60, 70 Dial 61-66, 71-76 Concavo-convex part 67, 77 center hole 100 inkjet printer

Claims (13)

A printing jig that supports a material to be printed and is installed in an inkjet printer when printing is performed on the material to be printed,
A placement surface on which the print substrate is placed,
It is a convex portion for positioning the printed material, and when the printed material is placed on the placement surface, ink of an inkjet printer is used so as to come into contact with at least a part of a side portion of the printed material. It has a convex portion which is previously formed on the mounting surface, and
The substrate is a display plate,
The side portion of the display plate has an uneven portion formed in an uneven shape in the circumferential direction of the display plate,
The convex portion is formed at least at a position in contact with the concave-convex shaped portion of the display plate,
Printing jig characterized by and this. The display plate is a dial of a clock,
The uneven portion of the dial is an engaging portion that engages with a movement to which the dial is fixed or an inner frame that holds the movement,
The printing jig according to claim 1 , wherein the convex portion is formed at a position at least in contact with the engaging portion of the dial. The dial has a plurality of the engaging portions on the side,
The convex portion is formed at a position in contact with each of at least a plurality of the engaging portions,
The printing jig according to claim 2 . The display plate is a dial of a clock,
The uneven portion of the dial has a recess formed at the 12 o'clock position on the outer periphery of the dial,
The printing jig according to claim 1 , wherein the convex portion is formed so as to come into contact with the outer periphery of the dial at the place where the concave portion is formed. The dial has a central hole,
The printing jig according to any one of claims 2 to 4, wherein the convex portion is further formed at a position in contact with an inner wall of the center hole of the dial. The convex portion has a bank-like shape that surrounds the display plate by contacting a side portion of the display plate placed on the placement surface.
The printing jig further has a second convex portion,
The second convex portion has a similar shape to said convex portion, it has been made shaped to surround the convex portion on the outer peripheral side of the convex portion on the placing surface, claim 1 The printing jig according to any one of to 5. The printing jig according to claim 6 , wherein the convex portion has a cutout portion in a part in a circumferential direction. The uneven portion of the display plate is asymmetric with respect to the center of the display plate,
The projections, so that the panel is not mounted on the mounting surface with the back to front, asymmetrical wherein are formed at positions corresponding to the concave-convex part, any one of the preceding claims printing jig according to claim. The above-described mounting surface can be mounted by arranging a plurality of display plates on which different prints are applied,
The printing corresponding to the printing performed on the display plate placed at the position is previously performed at the placement position of each display plate on the placement surface, according to any one of claims 1 to 9. The printing jig described in. A printing jig that supports a material to be printed and is installed in a printing machine when printing is performed on the material to be printed,
A placement surface on which the print substrate is placed,
A convex portion for positioning the printed material, which is formed of ink of a printing machine so as to contact at least a part of a side portion of the printed material when the printed material is placed on the placement surface. And a raised portion,
The material to be printed is a flat member,
The convex portion is formed at a position in contact with two or more side portions of the printed material so that the printed material can be positioned in two directions orthogonal to each other and a rotating direction on the placement surface.
A printing jig characterized by that. The printing jig according to claim 10, wherein the printing object is a timepiece dial. The convex portion is formed by an inkjet printing method on the above-mentioned mounting surface of a jig plate or a jig sheet which has a mounting surface of a material to be printed and can be installed in an inkjet printing machine, and any one of claims 1 to 11. A step of forming the printing jig according to one item,
Placing the printing material on the mounting surface so that at least a part of the side surface of the printing material contacts the convex portion, and positioning the printing material based on the convex portion.
A step of performing printing on the printed material by an inkjet printing method,
A method for producing a printed matter, comprising: The manufacturing method according to claim 12, wherein in the step of performing the printing, the same printing machine as the step of forming the printing jig is used.

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