CN113183672B - Improved braille printing method - Google Patents
Improved braille printing method Download PDFInfo
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- CN113183672B CN113183672B CN202110446322.9A CN202110446322A CN113183672B CN 113183672 B CN113183672 B CN 113183672B CN 202110446322 A CN202110446322 A CN 202110446322A CN 113183672 B CN113183672 B CN 113183672B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000007639 printing Methods 0.000 title claims abstract description 32
- 239000000123 paper Substances 0.000 claims abstract description 54
- 238000005520 cutting process Methods 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009512 pharmaceutical packaging Methods 0.000 claims description 2
- 238000004080 punching Methods 0.000 abstract description 4
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- 238000004806 packaging method and process Methods 0.000 description 26
- 238000004519 manufacturing process Methods 0.000 description 13
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- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 8
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- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 201000009487 Amblyopia Diseases 0.000 description 5
- 238000004049 embossing Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 4
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- CJRQAPHWCGEATR-UHFFFAOYSA-N n-methyl-n-prop-2-ynylbutan-2-amine Chemical compound CCC(C)N(C)CC#C CJRQAPHWCGEATR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/02—Dies; Accessories
- B44B5/026—Dies
Abstract
The invention discloses a Braille printing method, wherein a Braille punching die in a die cutting machine comprises a Braille concave module and a Braille convex module, wherein the Braille concave module comprises a full array of concave points, the Braille convex module comprises Braille convex points preset according to requirements, and Braille is molded on paper through the cooperation of the Braille concave module and the Braille convex module. The method can realize cold press forming of braille on the white cardboard, saves energy, reduces consumption, and ensures that braille particles are round and full.
Description
Technical Field
The invention belongs to the field of Braille printing devices, relates to a Braille printing method, and particularly relates to a Braille printing method adopting a universal female die.
Background
Braille (braille) is a text which takes six convex points as a basic structure, is arranged according to a certain rule and is felt by touch. For the human care of the blind and amblyopia, the european union promulgates the standard EN 15823 in 2010, which specifies that braille must be present on kits sold in the european union, and international standard draft ISO/DIS 17351 based on this european union standard is approved at the berlin international standard work meeting 9 months 2012. National standard GB/T37105-2018 (Braille on packaging of packaged medicines) has also been promulgated by China on 12 months and 28 days of 2018, and the standard prescribes requirements and guidelines for Braille use on medicine labels. International standard ISO 17351:2013, mod and national standard GB/T37105-2018 specify the pitch and size of braille: the shape of the blind symbol point is approximately hemispherical; the dot diameter phi is 1.0-1.6mm; the height of the point is 0.2-0.5mm; the distance between the points is 2.2-2.8mm; square distance is 3.5-4mm; the row spacing is 5-6mm; to ensure that the braille reader can identify the drug, the sample spot is preferably high when tested according to appendix F at the place of manufacture of the package (e.g. picture or label): the protruding material preferably has a dot height of 0.20mm, less than 0.12mm and not more than 5%, less than 0.10mm and not more than 1%.
The braille processing of the existing medicine packaging box is generally realized by utilizing an embossing process, and the braille highlighting effect is generally realized by heating and pressurizing paper to be molded such as white cardboard by a die cutting machine, and the die cutting machine uses a braille embossing template to punch and embossing. In order to make the convex points on the medicine box clear and uniform and facilitate accurate identification of manual contact of a blind person, in recent years, people have improved braille stamping dies differently, for example, CN201573360U discloses a braille convex die which comprises a convex female die, a convex male die and an elastic pad arranged between the convex female die and a plate frame, and the convex height of the braille point can be effectively increased; CN207747610U discloses a high-density braille stamping die, which is provided with corresponding convex components and concave components to be matched for stamping and printing braille convex points, and because the corresponding convex components and concave components are used for stamping one braille convex point independently, the support formed between the braille convex points is avoided, and the arrangement of a pre-pressing structure ensures the positioning accuracy of the braille convex points, so that the metal plastic deformation is more stable during stamping; CN211892558U discloses a braille stamping die, including braille copper mould and resin edition, bump top, bump protrusion, bump bottom and the resin edition base that the resin edition from the top down an organic whole set up, and one side that the copper mould is close to the resin edition is provided with the nib, and the both sides of nib are provided with vertical part, and the top circular arc on the top is connected through a number fillet in vertical part top, and mould pressing white cardboard can obtain full braille granule effect.
However, none of these prior art techniques have considered the economic problem of how to increase the utilization efficiency of the female and/or male dies, reduce the cost of die engraving processing, and the problem of how to reduce the production cycle, increase the working efficiency, etc. to enhance the industrial aging. In fact, the resolution of these problems is of great economic importance for the improvement of the yield, energy conservation and product quality of the pharmaceutical cassette manufacturing enterprises.
Disclosure of Invention
In order to reduce the production cost of a medicine packing box with braille, improve the yield and the product quality, a novel braille concave-convex template is designed by improving a braille punching die (or called braille punching die) in a die cutting machine, a brand new concave-convex point structure is developed, and cold press forming of braille particles is realized, so that the die pressing mode of the die cutting machine is changed. Specifically, the invention comprises the following technical scheme.
A braille relief pattern comprising a female mold provided with a full array of pits and a male mold provided with predetermined braille (i.e. braille pattern or typeface) bumps, wherein each bump matches a pit corresponding in position.
The whole array is a whole concave point (point groove) arrangement structure with six convex points for each blind symbol, so that the whole array point groove on the female mold means that six point grooves are arranged for each blind symbol, and the unification of the concave point grooves is realized.
The full array pits enable the negative plate module to be a common template which is universal and can be repeatedly used. Therefore, the braille negative plate module can be shared by multiple kinds of medicine packaging boxes, and only the relief plate with lower cost is required to be replaced when braille is formed for different kinds of medicine boxes. Because the convex module and the concave module of the preset braille convex points are not needed to be engraved at the same time for each medicine packing box, only the convex module with relatively low price is needed to be engraved, the engraving cost of the template is greatly reduced, and the mold changing time is shortened.
Based on this design, the present invention essentially provides an improved braille printing method, wherein the braille punch (or braille stamping die) in the die-cutting machine comprises a braille concave-convex stencil consisting of a braille concave module (female die) and a braille convex module (male die), wherein the concave module comprises a full array of pits, i.e. all the blind symbols, and the convex module comprises braille bumps predetermined according to requirements, and braille is stamped on paper by the cooperation of the braille concave module (female die) and the braille convex module (male die).
The method is characterized in that the braille concave modules are shared, and braille convex points on the male die are replaced according to the requirement, namely, braille intaglio is fully configured and relief is selected, so that high cost caused by engraving of braille selection is avoided when the intaglio is used for traditional braille printing. On the other hand, under the condition that the pit shape on the female die is kept stable, the female die does not need to be replaced, and only the male dies with different braille marks need to be replaced according to requirements, so that the mold replacing time is shortened.
The braille printing method can be applied to braille printing of paper packaging boxes, and the paper packaging boxes are not limited to medicine packaging boxes, but also comprise packaging boxes of other objects which are convenient for the blind and the amblyopia to recognize.
The second aspect of the invention provides a novel braille concave-convex point structure, wherein concave points are approximate hemispheres specified by national standard GB/T37105-2018, the vertical distance from the center of the bottom of each braille concave point to the horizontal plane is set as X, the circular arc diameter of the plane is set as Y, the formula Y= 0.4499ln (X) +0.9106 is met, the horizontal plane refers to the plane in which the depth of each braille concave point is divided into 7 sections, and the upper end of each section is located;
the shape and the size of the upper part of the convex point are matched with those of the concave point, the upper part is approximately hemispherical and specified by national standard GB/T37105-2018, the lower part is a cylinder, the vertical distance between the vertex of the convex point (namely the center of the braille convex point) and the horizontal plane is x, the diameter of the circular arc of the plane is y, the formula y= -0.0275x2+0.3475x+0.6057 is met, the horizontal plane refers to the plane where the convex point is equally divided into 6 sections from the vertex to the hemispherical tail end, and the lower end of each section is positioned.
In one embodiment, the pit upper surface has a diameter of about 1.76mm and a depth of about 0.27mm.
It is to be understood that the term "about" or "approximately" when used herein to describe a numerical feature means that the number represented can have a tolerance range of + -10%, + -9%, + -8%, + -7% or + -6% or a float range.
Specifically, the braille pits are equally divided into 7 segments from top to bottom along the axis, each segment being about 0.0386mm, and the upper end diameter of each segment being about 1.76mm, 1.73mm, 1.64mm, 1.54mm, 1.41mm, 1.23mm, 0.90mm, respectively.
The maximum diameter of the convex point is about 1.70mm (170 wires), the total height of the convex point is about 0.73mm (73 wires), and the height of the hemispherical body at the upper part of the convex point is about 0.23mm, and the length of the cylindrical body at the lower part is about 0.50mm, corresponding to the shape and size of the concave point.
Preferably, the braille bumps are equally divided into 6 segments from the apex to the hemispherical end, each segment being about 0.0386mm, and each segment having an upper end diameter of about 0.90mm, 1.23mm, 1.41mm, 1.54mm, 1.64mm, 1.70mm, respectively.
In one embodiment, the female and male dies are copper or stainless steel. Copper and stainless steel materials can ensure close fit of the female die and the male die, and improve the height of the convex braille striking point. For example, the female die and the male die can be engraved by copper plates, wherein the copper plate thickness of the female die is 6.5-6.8mm, and the copper plate thickness of the male die is 1.23-1.5mm. When carving is carried out according to the diameters of the set concave points at each sectional position, excessive edges and corners can appear, the polishing is round, the radian after polishing is round, and a standard concave template is presented; similarly, when carving is performed according to the diameters of the set convex points at each sectional position, the angles are excessive, the polishing is needed to be round, the radian of the polished spherical surface is round, and a standard convex template is presented.
Alternatively, the male die may be made of resin.
The invention also provides a new design for the structure of the male mould which needs to be updated and engraved according to the specific medicine packaging box, wherein the thickness of the base of the male mould changes according to the specification of the paper to be punched, and the thickness of the base of the male mould changes according to the specification of the paper to be punched, for 250g (250 g/m 2 ) White cardboard, the thickness of the base is 0.60mm (60 filaments); for 300g (300 g/m) 2 ) White cardboard, the thickness of the base is 0.55mm (55 filaments); for 350g (350 g/m) 2 ) The white cardboard has a base thickness of 0.50mm (50 filaments).
Tests of a molding press show that on the basis of the size and shape design of the Braille concave points and the convex points, the male mold is used for adjusting the thickness of a substrate according to the specification of paper, so that balance points of the paper, the Braille convex points and a mold cutter line are met, the pulling deformation of the paper during pressurization is reduced, the traditional heating and pressurizing twice production process can be simplified into a single process with only pressurization and no heating, and the cold press molding of Braille particles on white cardboard is realized. Because the die cutting machine does not heat the paper when the paper is punched to form braille, the production period of the medicine packing box is shortened, and the die pressing working efficiency is improved.
In the Braille printing method, the concave point convex point structure is adopted, when the paper packaging box is die-cut, the paper can be not subjected to heating treatment, and only stamping is carried out to form Braille, so that the production period of the paper packaging box is shortened, the die-pressing working efficiency is improved, and the effects of energy conservation and consumption reduction are achieved.
When the braille concave-convex stencil of the invention is used, the female die is arranged on the plate loading frame of the die cutting machine, and the male die is arranged on the steel bottom plate of the die cutting machine.
Alternatively, the braille relief structure design of the invention may of course be used in the traditional braille relief template form, i.e. depending on the specific pharmaceutical packaging box requirements, both the female and male mould are engraved, i.e. not using a female mould provided with a full array of pits, but instead using a female mould provided with the required blind symbols.
The full-blind Fu Yinmo is matched with the Braille concave-convex templates of the Braille selection male die, so that a one-to-one corresponding combination mode of the female die and the male die in the traditional Braille concave-convex templates is changed, the processing cost and the material cost of carving the female die at any time according to the needs are omitted, the disassembling and the installing of the Braille punching die on a die cutting machine are more convenient, and the die changing time is shortened. The braille template concave-convex point shape innovation can realize cold press forming of braille particles on white cardboard, change the traditional heating and pressurizing mould pressing mode, save energy and reduce consumption, and the protruding braille convex points are round and full, so that the product quality of the medicine box is improved. Therefore, the design scheme of the invention achieves remarkable economic benefit.
Drawings
Fig. 1 is a schematic diagram of an embodiment of a braille relief template according to the invention. Wherein A is a female die and B is a male die.
Fig. 2 is a schematic cross-sectional structure of pits and bumps in the braille relief pattern plate shown in fig. 1, wherein a is pits and B is bumps.
Fig. 3 is a graph of a mathematical model of a pit and land structure, where a is pit and B is land.
Fig. 4 is a braille relief pattern according to the invention.
Fig. 5 is a photograph of a medicine packing box, respectively showing braille formed by embossing a braille concavo-convex stencil according to the invention. Wherein, both pictures are the outer surface of the medicine packing box (braille granules).
Detailed Description
The technical scheme of the present invention will be described below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, of the implementations of the present application; and the structures shown in the drawings are merely schematic and do not represent a physical object. It is intended that all other embodiments obtained by those skilled in the art based on these embodiments of the present invention fall within the scope of the present application.
Braille printing is generally to realize the effect of highlighting Braille by pressurizing a die cutter on paper. The braille products have high technological requirements, and are generally produced by two processing procedures on a die cutting machine, namely, the braille products are formed by heating and pressurizing once and the braille products are formed by cutting small boxes once. The die-cutting pressurizing mode has strong selectivity to paper, for example, the surface layer of the Braille position of some paper is damaged due to the paper making characteristic, and the fiber of the paper is broken, so that the Braille height standard cannot be achieved. Many enterprises heat at high temperature through die cutting and pressurizing positions, so that the paper is flexible when heated and pressurized, and the quality influence on other aspects is larger although the toughness is improved, such as: sheet deformation, die-cut overprinting, etc.
The inventor finds that the braille concave-convex points adopt special structural design, for example, different scale sizes are adopted at different positions in one concave point, the concave point is the same as the corresponding convex point in size, at the moment, the die cutting machine does not need to heat treatment on paper, the paper can be physically changed to form braille particles only through extrusion, after the braille points are formed, the braille points are round and full, are not easy to collapse and rebound, and the surface of the braille is not easy to damage. Meanwhile, the Braille particles can meet the storage and transportation conditions of medicine packaging, are hardly influenced by high-temperature and high-humidity air environments, and stabilize the quality of the Braille products of the medicine boxes.
In the braille printing die, the female die cost is obviously higher than that of the male die, so that the production cost of the medicine packaging box can be reduced by reducing the replacement rate of the female die.
The design concept of the invention is that 'blind Fu Aodian full allocation' of the braille intaglio (female die) 'blind symbol convex point selection' of the relief board (male die) 'blind symbol convex point selection', the concave template can be reused, thereby avoiding the high cost caused by engraving 'blind symbol concave point selection' of the intaglio in the prior art, greatly saving the engraving cost of the template and reducing the mould changing time.
For simplicity of description, the "braille relief pattern" is sometimes referred to herein simply as "braille strike pattern", "braille punch pattern" or "braille pattern", which are used interchangeably. Similarly, "female master", "gravure module" and "negative module" and the like are used interchangeably and refer to the same meaning; "male template", "relief module" and "male module" and the like are intended to have the same meaning and are used interchangeably.
Those skilled in the art will readily appreciate that the "intaglio mold" may sometimes be referred to simply as a "(punch) female mold, a" female mold ", or a" intaglio "or the like, and correspondingly the" male master "may be referred to as a" (punch) male mold, a "male mold", or a "relief" or the like.
It is well known that the braille points with high quality can effectively improve the braille reading rate of the paper boxes such as the medicine packaging boxes, increase the distinguishing capability of the blind or amblyopia crowd on the medicine, improve the medicine safety of the blind or amblyopia crowd, expand the popularization and application range of the medicine, and have higher practical value and economic value.
The braille lettering on the current medicine packaging box has the defect that the blind symbol particles are not enough in height or not round and full in shape, so that the handfeel acuity is low, and therefore, the structures and the shapes of the pits (grooves) and the bumps of the braille concave-convex template are very necessary to be improved.
In the new design of the pit and land structures, it is necessary to consider the thickness and physical properties of the paper to be embossed, such as the white cardboard itself, including the fiber length, the surface brittleness/toughness, the deformation factor of the fiber structure in the heated state, etc., as well as the bursting limit of the paper at cold pressing, the stretching length of the paper surface, etc. Preferably, the paper is white cardboard 250-350 g (g/m) 2 ) Wherein 250 grams of white cardboard has a thickness of 35 filaments, 300 grams of white cardboard has a thickness of 40 filaments, and 350 grams of white cardboard has a thickness of 48 filaments.
In addition, the shapes and structures of the pits and the bumps of the braille concave-convex template can keep stability under larger molding pressure, cannot cause rapid abrasion, extrusion deformation or rupture, can avoid frequent replacement of the intaglio and the relief, reduce loss and save production cost.
The invention can realize the one-time completion of Braille forming and small box cutting through the innovation of the Braille concave-convex point structure. The research test of the inventor shows that the braille relief printing plate is correspondingly adjusted according to the thickness (such as the gram number of white cardboard) of the paper on the basis of the novel braille points, so that the balance points of the paper, the braille relief points and the die cutter line are met, the pulling deformation of the paper during pressurization is reduced, and the twice processing procedures can be simplified into one processing procedure.
Referring to fig. 1, 2 and 4, the braille relief pattern 1 of the invention comprises a female mold 3 provided with a full array of pits 2 and a male mold 5 provided with predetermined braille (i.e. braille pattern or typeface) bumps 4, wherein each bump 4 matches a pit 2 corresponding in position.
Both the female die 3 and the male die 5 may be engraved from copper or stainless steel plates. Alternatively, the male die 5 may be made by resin plate engraving. Copper or stainless steel can ensure the close fit of the female die 3 and the male die 5, and improve the height of the raised braille striking point. For example, both the female mold 3 and the male mold 5 may be engraved using copper plates, wherein the copper plate thickness of the female mold 3 is 6.5 to 6.8mm, and the copper plate thickness of the male mold 5 (sum of the height of the bump 4 and the thickness of the base 51) is 1.23 to 1.5mm. When carving is carried out according to the diameters of the set concave points 2 at each sectional position, excessive edges and corners can appear, the polishing is round, the radian after polishing is round, and a standard concave template 3 is presented; similarly, when engraving is performed according to the diameters of the set positions of the segments of the convex points 4, the angles are excessive, the round polishing is needed, the radian of the polished spherical surface is round, and the standard convex template 5 is presented.
The pits 2 (or called point grooves 2 and grooves 2) engraved on the female mold 3 are all arrayed, namely six pits 2 are arranged on each blind symbol, so that the unification of the pits and the grooves is realized. If the groove 2 at a certain position does not have the corresponding convex point 4, the white cardboard will not be extruded and deformed at the position and still keeps flat when the die cutting machine (not shown) is used for die-pressing the paper for the medicine packaging box, namely the white cardboard. Therefore, the female die 3 can be used as a common template for common use, and can be repeatedly used, so that the common braille negative plate module 3 for multiple kinds of medicine packaging boxes is realized, and when braille is formed for different kinds of medicine boxes, only the male die 5 with lower cost is needed to be replaced. Since the male module 5 and the female module 3 of the predetermined braille convex points 4 are not needed to be engraved at the same time for each medicine packing box, only the relatively low-priced male module 5 is needed to be engraved, thereby greatly reducing the engraving cost of the stencil 1 and reducing the mold changing time of the stencil 1.
Based on this design, the present invention essentially provides an improved braille printing method, wherein the braille embossing tool (not shown) in the die cutting machine (not shown) comprises a braille concave module 3 (female die 3) and a braille convex module 5 (male die 5), the concave module 3 comprises a full array of pits 2, i.e. all the blind symbols, the convex module 5 comprises braille bumps 4 predetermined according to the requirements, and the braille bumps are embossed on the paper (not shown) by the cooperation of the braille concave module 3 (female die 3) and the braille convex module 5 (male die 5).
Obviously, the method is characterized in that the female die 3 is shared, and the braille convex points 4 on the male die 5 are replaced as required, namely, the braille concave plates 3 are fully configured and the relief plates 5 are subjected to braille selection, so that the high cost caused by engraving the braille selection of the concave plates 3 in the traditional braille printing process is avoided. On the other hand, in the case where the pits 2 on the female mold 3 remain stable in shape, since the female mold 3 does not need to be replaced, only the male mold 5 of a different braille is required to be replaced, so that the change time is reduced.
The braille printing method can be applied to braille printing of paper packaging boxes, and the paper packaging boxes are not limited to medicine packaging boxes, but also comprise packaging boxes of other objects which are convenient for the blind and the amblyopia to recognize.
In order to improve the quality of braille on the packaging box, the requirements of no deformation and no reduction of touch readability in the packaging and transportation process and in the high-temperature and high-humidity environment during long-time storage are met. The structure of the pits 2 on the female mold 3 and the bumps 4 on the male mold 5 is also innovatively designed. Through the innovative design of the structures of the concave points 2 and the convex points 4, the die cutting machine can realize cold press forming of braille particles on the white cardboard, and the traditional heating and pressurizing die pressing braille mode is changed.
Obviously, in the Braille printing method, the improved concave point 2 and convex point 4 structures are adopted, when the paper packaging box is die-cut, the paper can be not subjected to heating treatment, and only the paper can be punched to form Braille, so that the production period of the paper packaging box is shortened, the die-pressing working efficiency is improved, and the effects of energy conservation and consumption reduction are achieved.
Referring to fig. 2 a, the pit 2 is approximately hemispherical, and the vertical distance from the bottom center of the braille pit 2 to the horizontal plane is set as X, the circular arc diameter of the plane is set as Y, and the formula y= 0.4499ln (X) +0.9106 is satisfied, wherein the horizontal plane refers to a plane in which the depth of the braille pit 2 is equally divided into 7 segments, and the upper end of each segment is located. A graph of the pit 2 structure deduced from the mathematical model is shown in fig. 3 a.
For example, the upper surface of the pit 2 has a diameter of about 1.76mm and a depth of about 0.27mm, and the pit 2 is equally divided into 7 sections from top to bottom along the axis, each section having a diameter of about 0.0386mm, and the upper end of each section has a diameter of about 1.76mm, 1.73mm, 1.64mm, 1.54mm, 1.41mm, 1.23mm, and 0.90mm, respectively.
As shown in fig. 2B, the shape and size of the upper portion 41 of the bump 4 are matched with those of the concave point 2, the shape and size of the lower portion 42 is approximately hemispherical, the cylindrical portion 42 is provided with a vertical distance x from the vertex of the bump 4 (i.e. the center of the braille bump 4) to a horizontal plane, the circular arc diameter of the plane is y, and the formula y= -0.0275x2+0.3475x+0.6057 is satisfied, wherein the horizontal plane refers to a plane in which the height from the vertex to the hemispherical end 4a of the bump 4 is equally divided into 6 sections, and the lower end of each section is located. Fig. 3B shows a graph of the structure of the upper portion 41 of the bump 4 derived from the mathematical model.
For example, the maximum diameter of the bump 4 is about 1.70mm (170 filaments), the total height of the bump 4 is about 0.73mm (73 filaments), wherein the height of the hemispherical body 41 at the upper part of the bump 4 is about 0.23mm, and the length of the cylindrical body 42 at the lower part is about 0.50mm. The braille convex point 4 is equally divided into 6 segments from the apex to the hemispherical end 4a, each segment is about 0.0386mm, and the upper end diameter of each segment is about 0.90mm, 1.23mm, 1.41mm, 1.54mm, 1.64mm, 1.70mm, respectively.
Referring to fig. 2B, the structure of the male die 5 includes the bumps 4 and the base 51, and the thickness of the base 51 varies depending on the paper size to be bumped, for 250g (250 g/m 2 ) White cardboard, the thickness of the base is 0.60mm (60 filaments); for 300g (300 g/m) 2 ) White cardboard, the thickness of the base is 0.55mm (55 filaments); for 350g (350 g/m) 2 ) The white cardboard has a base thickness of 0.50mm (50 filaments).
It will be readily appreciated by those skilled in the art that the above-described pit 2 bump 4 configuration of the present invention may of course be used with conventional braille relief templates, for example, according to specific medicine packing box requirements, to simultaneously engrave the female die 3 and the male die 5, i.e. not using the female die 3 provided with the full array of pits 2, but instead using the female die 3 provided with the required braille.
When the braille relief pattern 1 is used, the female pattern 3 is mounted on a plate holder (not shown) of a die cutter, and the male pattern 5 is mounted on a steel base plate (not shown) of the die cutter.
Fig. 4 shows a real pattern of braille relief pattern 1 engraved with a copper plate. Fig. 5 shows a photograph of a medicine packing box which is formed by the braille concave-convex template 1 of the invention by striking and convex, and braille particles on the packing box are round and full, and the touch feeling is clear.
Tests of a molding press show that on the basis of the structural improvement of the concave points 2 and the convex points 4, the thickness of the substrate 51 is adjusted by the male die 5 according to the specification of paper, so that the balance points of the paper, the braille convex points and a die cutter line are met, the pulling deformation of the paper during pressurization is reduced, the traditional two-time heating and pressurizing production process can be simplified into a single process with only pressurization and no heating, and the cold press molding of braille particles on the white cardboard is realized. Because the die cutting machine does not heat the paper when the paper is punched to form braille, the production period of the medicine packing box is shortened, and the die pressing working efficiency is improved.
Obviously, in the improved Braille printing method, when the concave point 2 convex point 4 structure is adopted to die-cut the paper packaging box, the paper can be not subjected to heating treatment, and only the paper can be punched to form Braille, so that the production period of the paper packaging box is shortened, the die-pressing working efficiency is improved, and the effects of energy conservation and consumption reduction are achieved.
The braille relief pattern 1 and the braille printing method according to the invention are described in detail above, and the description of the above embodiments is only for aiding in understanding the inventive concept of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A braille printing method, characterized in that a braille punch in a die cutting machine comprises a braille concave module and a braille convex module, wherein the braille concave module comprises a full array of pits, and the braille convex module comprises braille convex points predetermined according to requirements, braille is molded on paper by the cooperation of the braille concave module and the braille convex module, wherein
The Braille concave points are approximately hemispherical, the vertical distance of the center of the bottom of each Braille concave point is X, the circular arc diameter of the plane where each Braille concave point is located is Y, the formula Y= 0.4499ln (X) +0.9106 is met, wherein the horizontal plane refers to the plane where the depth of each Braille concave point is equally divided into 7 sections, and the upper end of each section is located;
the shape and the size of the upper part of the convex point are matched with those of the concave point, the upper part of the convex point is hemispherical, the lower part of the convex point is a cylinder, the vertical distance between the top point of the convex point and the horizontal plane is x, the diameter of an arc of the plane is y, and the formula y= -0.0275x2+0.3475x+0.6057 is met, wherein the horizontal plane is the plane in which the height from the top point to the tail end of the hemispherical point of the convex point is equally divided into 6 sections, and the lower end of each section is positioned, so that the die cutting machine realizes cold press forming of braille particles on white cardboard.
2. A braille printing method according to claim 1, characterized in that the paper is a pharmaceutical packaging paper.
3. A braille printing process according to claim 1, characterized in that the paper is 250-350 g white cardboard.
4. A braille printing method according to claim 1, characterized in that the braille pits have an upper surface diameter of 1.76mm and a depth of 0.27mm, and the braille pits are equally divided into 7 segments from top to bottom along the axis, and the upper end diameter of each segment is 1.76mm, 1.73mm, 1.64mm, 1.54mm, 1.41mm, 1.23mm, 0.90mm, respectively.
5. A braille printing method according to claim 4, characterized in that the maximum diameter of the protruding point is 1.70mm, the total height of the protruding point is 0.73mm, the height of the hemispheroids at the upper part of the protruding point is 0.23mm, the length of the lower section cylinder is 0.50mm, the braille protruding point is equally divided into 6 sections from the apex to the hemispherical end, and the upper end diameter of each section is 0.90mm, 1.23mm, 1.41mm, 1.54mm, 1.64mm, 1.70mm, respectively.
6. A braille printing method according to claim 1, characterized in that the braille concave module and the braille convex module are made of copper or stainless steel.
7. A braille printing method according to claim 6, characterized in that the base thickness of the braille lettering convex module varies with the paper specification, the base thickness being 0.60mm for 250g white card paper; for 300 grams of white cardboard, the thickness of the base is 0.55mm; for 350g white cardboard, the base thickness is 0.50mm.
8. A braille printing method according to any preceding claim 1-7, characterized in that the braille female module is mounted on a mounting plate rack of a die-cutting machine and the braille male module is mounted on a steel floor of the die-cutting machine.
9. A braille printing method according to any preceding claim 1-7, characterized in that the braille concave module is provided with predetermined braille pits instead of a full array of pits.
10. A braille printing method according to claims 1-7, characterized in that the die-cutting machine does not heat the paper when it is punched to form braille.
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| CN202110446322.9A CN113183672B (en) | 2021-04-25 | 2021-04-25 | Improved braille printing method |
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| CN202110446322.9A CN113183672B (en) | 2021-04-25 | 2021-04-25 | Improved braille printing method |
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| CN113183672A (en) | 2021-07-30 |
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Address after: 312500 No. 10, Dongyuan Avenue, Yulin street, Xinchang County, Shaoxing City, Zhejiang Province Applicant after: Zhejiang Yuanjin Packaging Co.,Ltd. Address before: 312500 No. 10, Dongyuan Avenue, Yulin street, Xinchang County, Shaoxing City, Zhejiang Province Applicant before: Zhejiang Yuanjin Printing Co.,Ltd. |
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