Combined production process for identification printing of different sized shading sheets with different chamfered surfaces

Abstract

The present invention discloses a combined production process for identifying printing methods with different chamfered surfaces for products of different sizes, comprising the following steps: printing two strip identification lines (one) on the upper and lower sides of the printed surface of the raw material, and printing a stripe identification line group in the center between the two strip identification lines (one); continuing to print trace line groups; each print trace line group includes two concentrically distributed print trace appearance lines of different sizes; one print trace appearance line portion overlaps with the upper and lower strip identification lines (one); the other print trace appearance line portion overlaps with the corresponding stripe identification line group; conveying a surface printed body plate to a punching machine, and conveying the surface printed body plate from the punching direction of the punching machine feed table; determining when the surface printed body plate is conveyed to a specific punch, driving the specific punch downward to simultaneously punch out two concentric light shielding sheet materials with different diameters. The present invention enables the simultaneous punching of two different products.

Description

Technical Field

[0001] The present invention relates to the technical field of printing processing technology, in particular to a combined production process for identifying and printing different chamfered surfaces of light shielding sheets of different sizes. Background Art

[0002] The shading sheet is used around the backlight modules of various TFT-LCDs. It has good heat resistance, moisture resistance, and cold resistance. After application, it can extend the life of electronic components. The shading sheet with one-way chamfer is often used in high-end camera components and its operation is irreplaceable.

[0003] The current light shielding film has a single chamfered product with the chamfered surface facing only one side, so the inner hole needs to be chamfered in one direction during the processing. In addition, during the lens assembly process, an unavoidable problem is that in order to facilitate the identification of the chamfered surface, in order to distinguish the chamfered surface, it is necessary to mark it with a color-coded line on one side of the product. This is the chamfered surface identification printing process. At present, the striped identification line s is generally printed in the middle of the surface of the product raw material, such as Figure 1 As shown, this processing method of the assembly line can only process the same product each time. Therefore, when processing relatively large diameter products or small diameter shading films, it is easy to cause serious waste of raw materials. If the raw materials of the middle through hole part are cut when processing larger diameter products, they are directly scrapped, resulting in serious waste of raw materials and reducing the utilization rate of raw materials. Therefore, improvement is needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a combined production process for identification printing of different sized shading sheets with different chamfered surfaces, so as to solve the problem raised in the above background technology that there is serious waste of principle materials and reduced raw material utilization in the existing shading sheet production process.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a combined production process for identifying and printing different chamfered surfaces of different-sized shading sheets, comprising the following steps:

[0006] S1. Print two strip identification lines extending along the length of the raw material on the upper and lower sides of the printed surface. Print one or more strip identification line groups in the center between the two strip identification lines. Each strip identification line group is evenly spaced.

[0007] S2. On the raw material prepared in step S1, continue printing one or more sets of printing trace line groups to form a surface printed body plate; each set of printing trace line groups includes two concentrically distributed printing trace appearance lines of different sizes; one of the printing trace appearance lines is partially overlapped with the upper and lower strip-shaped identification lines; the other printing trace appearance line is partially overlapped with the corresponding strip-shaped identification line group;

[0008] S3. Improve the original punching machine by connecting a special punch to the punching connection head of the original punching machine, wherein the special punch includes two punching heads, and the two punching heads are distributed on the punching connection head of the punching machine in a concentric manner with different diameters;

[0009] S4. The surface printed sheet material prepared in step S2 is then conveyed to the improved punching machine in step S3, and the surface printed sheet material is conveyed from the punching direction of the punching machine. When the surface printed sheet material is conveyed to a specific punch, the specific punch is driven downward to simultaneously punch out two concentric light-shielding sheet materials with different diameters.

[0010] Preferably, in step S2, the two printing trace appearance lines on each group of printing trace line groups must satisfy that the outer diameter of the small product must be smaller than the inner hole of the large product.

[0011] As a preference, the operation is diversified and suitable for stamping products of different shapes. In step S2, the shapes of the appearance lines of two different sizes of printing marks can be switched at will, and can be circular, square or polygonal.

[0012] In step S1, it is also necessary to print more than one electric eye tracking mark positions at intervals on the raw material, and a printing trace line group is set between two adjacent electric eye tracking mark positions, and the electric eye tracking mark position is located above the lower strip identification line one.

[0013] Preferably, in step S1 , the stripe-shaped identification line group includes more than one stripe-shaped identification line that is evenly spaced longitudinally.

[0014] Preferably, in order to improve work efficiency, in step S4, how to determine whether the surface printed sheet is delivered to a specific punch is by providing an electric eye tracking detector on both sides of the punch relative to the specific punch, and the distance between the electric eye tracking detectors on both sides and the specific punch is the same. When the specific punches on both sides can simultaneously detect the two electric eye tracking positions on the surface printed sheet delivered from below, it is determined that the corresponding punching head is aligned with the appearance lines of the printing mark, and at this time, the specific punch can be driven downward to punch.

[0015] Preferably, for ease of operation, in step S2, the appearance lines of the two printing traces of different sizes are shaped as two concentric circular structures with different diameters.

[0016] Preferably, in order to facilitate distinction, the strip-shaped identification line 1 and the strip-shaped identification line group have different colors.

[0017] Preferably, for easy distinction, the two printing trace appearance lines in each group of printing trace line groups have different colors.

[0018] Compared with the prior art, the present invention has the following beneficial effects: through the process of the present invention, two products of different sizes (the outer diameter of the small product must be smaller than the inner hole of the large product) and different identification printing forms are produced at the same time, so that two products of different colors and sizes can be stamped separately, and the simultaneous stamping is used to further improve work efficiency, and the material of the large-sized shading sheet in the middle is also utilized, further saving raw materials and greatly improving production efficiency; it can further improve the utilization rate of expensive shading materials, and turn the previous production waste area into products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of raw materials in the prior art;

[0020] Figure 2 This is a schematic diagram of the raw material structure after processing in step S1 in a combined production process for identification printing on different chamfered surfaces of light shielding sheets of different sizes in Example 1;

[0021] Figure 3 Schematic diagram of the raw material structure of the overall process for a combined production process for identification printing of different-sized shading sheets with different chamfered surfaces in Example 1 (the last two figures do not show the two products after stamping);

[0022] Figure 4 It is a schematic diagram of the combined structure after the peripheries of the two light shielding sheets are cut;

[0023] Figure 5 This is a schematic diagram of the front structure of a large-size shading sheet;

[0024] Figure 6 It is a side cross-sectional view of a large-sized light shielding sheet;

[0025] Figure 7 This is a schematic diagram of the front structure of a small-sized light shielding sheet;

[0026] Figure 8 It is a side cross-sectional view of a small-sized light shielding sheet;

[0027] Figure 9 Schematic diagram of the structure of a specific punch head on a punching machine.

[0028] In the figure: punching machine 1; specific punch 2; punching head 2-1; strip identification line 3; stripe identification line group 4; stripe identification line 4-1; printing mark line group 5; printing mark appearance line 5-1; electric eye tracking mark position 6; electric eye tracking mark detector 7. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figures 1-9 As shown, this embodiment provides a combined production process for identification printing on different chamfered surfaces of different sized shading sheets. Before processing, shading sheet products of similar sizes are first mixed and matched. For example, if a circular shading sheet is required, assuming that the large shading sheet to be produced has a circular diameter of 22.94 cm and a hollow inner diameter of 14.66 cm, then another product with an outer diameter smaller than 14.66 cm can be made in the hollow position of the raw material and the two products can be mixed and processed simultaneously. The process includes the following steps:

[0032] S1. Print two strip identification lines 3 extending along the length of the raw material on the upper and lower printed surfaces, and print one or more strip identification line groups 4 in the center between the two strip identification lines 3, with each group of strip identification line groups 4 being equally spaced. In step S1, it is also necessary to print one or more spaced electric eye tracking positions 6 on the raw material, and a printing trace line group 5 is provided between two adjacent electric eye tracking positions 6, and the electric eye tracking position 6 is located above the lower strip identification line 3. The function of the electric eye tracking position 6 is to assist in ensuring that each punching can be accurately punched on the printed product printed lines.

[0033] S2. On the raw material prepared in step S1, continue to print one or more printing trace line groups 5 to form a surface printed body plate; and the printing trace line groups 5 are directly overlapped and printed on the corresponding stripe-shaped identification line groups 4, and each group of printing trace line groups 5 includes two concentrically distributed printing trace appearance lines 5-1 of different sizes; one of the printing trace appearance lines 5-1 is partially overlapped with the stripe-shaped identification line 3 distributed above and below; the other printing trace appearance line 5-1 is partially overlapped with the corresponding stripe-shaped identification line group 4; that is, the two printing trace appearance lines 5-1 are respectively the cutting lines of the large-sized shading sheet and the cutting lines of the small-sized shading sheet, the stripe-shaped identification line 3 serves as the identification printing area of ​​the large-sized shading sheet, and the stripe-shaped identification line group 4 serves as the identification printing area of ​​the small-sized shading sheet;

[0034] like Figure 9As shown, S3, the original punching machine 1 is improved, and a specific punch 2 is connected to the punching connection head of the original punching machine 1, and the specific punch 2 includes two punching heads 2-1, and the two punching heads 2-1 are distributed on the punching connection head of the punching machine 1 in a concentric but different diameter manner; the punching machine 1 described in this embodiment is installed on the assembly line, and how the punching machine 1 is fixed to the assembly line structure belongs to conventional technology in this field, so it is not described here, and how the punching machine 1 drives the specific punch 2 downward to punch and cut the surface printed body sheet conveyed from below belongs to conventional technology in this field, so it is not described here;

[0035] like Figure 3 As shown, for the sake of ease of understanding, the marked area at A in the figure is the two product combination areas; the marked area at B in the figure is the two product internal and external waste discharge combination areas, that is, the two product combination areas are not drawn. After processing, the internal and external waste discharge parts of the later products do not need to be punched. After stamping and forming in this method, it is directly produced, S4, and then the surface printed body plate prepared in step S2 is transported to the improved punching machine 1 in step S3, and the surface printed body plate is transported from the punching direction of the punching machine 1. It is judged that when the surface printed body plate is transported to the specific punch 2, the specific punch 2 is driven to press down and then two concentric shading sheet materials with different diameters are stamped out at the same time.

[0036] Preferably, in step S2, the two printing trace appearance lines 5-1 on each group of printing trace line groups 5 must satisfy that the outer diameter of the small product must be smaller than the inner hole of the large product; in order to achieve diversified operations and be suitable for stamping products of different shapes, in step S2, the shapes of the two printing trace appearance lines 5-1 of different sizes can be switched at will, and can be circular, square or polygonal.

[0037] Preferably, in step S1, the stripe identification line group 4 includes more than one stripe identification line 4-1 that are evenly spaced longitudinally. In this embodiment, there are four stripe identification lines 4-1 in the stripe identification line group 4.

[0038] Preferably, in order to improve work efficiency, in step S4, how to determine whether the surface printed sheet is delivered to the specific punch 2 is by providing an electric eye tracking detector 7 on both sides of the punching machine 1 relative to the specific punch 2, and the distance between the electric eye tracking detectors 7 on both sides and the specific punch 2 is the same. When the specific punches 2 on both sides can simultaneously detect the two electric eye tracking positions 6 on the surface printed sheet delivered from below, it is determined that the corresponding punching head 2-1 is aligned with the printing mark appearance line 5-1, and at this time, the specific punch 2 can be driven downward to punch.

[0039] Preferably, for the convenience of operation, in step S2, the two printing trace appearance lines 5-1 of different sizes are shaped as two concentric circular structures with different diameters; in actual situations, they can also be two squares or polygons of different sizes, and in order to facilitate subsequent stamping, the corresponding punching head 2-1 shape also needs to be appropriately replaced according to the product appearance; for the convenience of distinction, the strip identification line 3 and the striped identification line group 4 are different in color, and pink and white are used for distinction in this embodiment; for the convenience of distinction, the two printing trace appearance lines 5-1 on each group of printing trace line groups 5 are different in color.

[0040] Through the process of the present invention, two products of different sizes (the outer diameter of the small product must be smaller than the inner hole of the large product) and different identification printing forms are produced at the same time, so that two products of different colors and sizes can be punched separately. In addition, the simultaneous stamping is used to further improve work efficiency, and the material of the large-sized shading sheet in the middle is also utilized, further saving raw materials and greatly improving production efficiency; it can further improve the utilization rate of expensive shading materials, and turn the previous production waste area into products (reducing costs).

Claims

1. A combined production process for identification printing of different sized and chamfered surfaces of light shielding sheets, characterized in that: The following steps are involved: S1. Print two strip-shaped identification lines (3) extending along the length direction of the raw material on the upper and lower sides of the printing surface of the raw material, and print one or more strip-shaped identification line groups (4) in the center between the two strip-shaped identification lines (3), with each group of strip-shaped identification line groups (4) being distributed at equal intervals; S2. On the raw material prepared in step S1, one or more printing trace line groups (5) are continuously printed to form a surface printed body plate; each printing trace line group (5) comprises two concentrically distributed printing trace appearance lines (5-1) of different sizes; one of the printing trace appearance lines (5-1) is partially overlapped with the strip-shaped identification line one (3) distributed above and below; the other printing trace appearance line (5-1) is partially overlapped with the corresponding strip-shaped identification line group (4); the two printing trace appearance lines (5-1) are respectively the cutting lines of the large-sized shading sheet and the cutting lines of the small-sized shading sheet; S3. Improving the original punching machine (1), connecting a specific punch (2) to the punching connection head of the original punching machine (1), wherein the specific punch (2) includes two punching heads (2-1), and the two punching heads (2-1) are distributed on the punching connection head of the punching machine (1) in a concentric manner with different diameters; S4, then conveying the surface printed body plate prepared in step S2 to the improved punching machine (1) in step S3, and conveying the surface printed body plate from the punching direction of the punching machine (1), judging when the surface printed body plate is conveyed to the specific punch (2), driving the specific punch (2) to press down and simultaneously punching out two concentric, different diameter, and inner hole unidirectional chamfered light shielding plates.

2. The combined production process for identification printing of different-sized and different-chamfered surfaces of light-shielding sheets according to claim 1, characterized in that: In step S2, the two printing trace appearance lines (5-1) included in each printing trace line group (5) must satisfy that the outer diameter of the small light shielding sheet must be smaller than the inner hole of the large light shielding sheet.

3. The combined production process for identification printing of different-sized and different-chamfered surfaces of light-shielding sheets according to claim 2, characterized in that: In step S2, the shapes of the two printing trace appearance lines (5-1) of different sizes can be switched arbitrarily between a circle and a polygon.

4. The combined production process for identification printing of different-sized and different-chamfered surfaces of light-shielding sheets according to claim 3, characterized in that: In step S1, it is also necessary to print more than one electric eye tracking mark positions (6) arranged at intervals on the raw material, and a printing trace line group (5) is set between two adjacent electric eye tracking mark positions (6), and the electric eye tracking mark positions (6) are located above the lower strip identification line (3).

5. A combined production process for identification printing of different-sized shading sheets with different chamfered surfaces according to claim 1, 2, 3, or 4, characterized in that: In step S1 , the stripe-shaped identification line group ( 4 ) includes more than one stripe-shaped identification lines ( 4 - 1 ) that are evenly spaced longitudinally.

6. The combined production process for identification printing of different-sized and different-chamfered surfaces of light-shielding sheets according to claim 4, characterized in that: In step S4, the method for determining whether the surface printed body sheet is conveyed to the specific punch (2) is to provide an electric eye tracking detector (7) on both sides of the punching machine (1) relative to the specific punch (2), and the distance between the electric eye tracking detector (7) on both sides and the specific punch (2) is the same. When the specific punches (2) on both sides can simultaneously detect the two electric eye tracking positions (6) on the surface printed body sheet conveyed from below, it is determined that the corresponding punching head (2-1) is aligned with the printed trace appearance line (5-1), and at this time, the specific punch (2) can be driven to punch downward.

7. The combined production process for identification printing of different-sized and different-chamfered surfaces of light-shielding sheets according to claim 6, characterized in that: In step S2, the shapes of the two printing trace appearance lines (5-1) of different sizes are both two concentric circular structures with different diameters.

8. The combined production process for identification printing of different-sized and different-chamfered surfaces of light-shielding sheets according to claim 7, characterized in that: The stripe identification line one (3) and the stripe identification line group (4) have different colors.

9. The combined production process for identification printing of different-sized and different-chamfered surfaces of light-shielding sheets according to claim 8, characterized in that: Each group of printing trace line groups (5) comprises two printing trace appearance lines (5-1) of different colors.

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