CN110254043B - Aluminum-plastic composite bag printing machine and printing method of aluminum-plastic composite bag - Google Patents
Aluminum-plastic composite bag printing machine and printing method of aluminum-plastic composite bag Download PDFInfo
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- CN110254043B CN110254043B CN201910662458.6A CN201910662458A CN110254043B CN 110254043 B CN110254043 B CN 110254043B CN 201910662458 A CN201910662458 A CN 201910662458A CN 110254043 B CN110254043 B CN 110254043B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/06—Lithographic printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/416—Reflective
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/02—Open containers
- B32B2439/06—Bags, sacks, sachets
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- Physics & Mathematics (AREA)
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- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Making Paper Articles (AREA)
Abstract
The invention relates to an aluminum-plastic composite bag printing machine and a printing method of an aluminum-plastic composite bag, wherein a UV curing device is arranged on the existing single-page lithographic printing machine in a perfect reconstruction mode to enable the printing machine to be suitable for UV ink printing, the aluminum-plastic composite bag to be printed is adjusted, a plurality of aluminum-plastic composite belts are only pressed out of edge sealing and not cut in a bag making stage, but a large plate surface is reserved, page width printed with the single-page lithographic printing is used, and cutting is carried out according to needs after printing, so that the printability of small-size aluminum-plastic composite bags in small-batch production is ensured, the position of printed patterns is accurate, and the small-batch production can be realized.
Description
Technical Field
The invention relates to the technical field of printing of aluminum-plastic composite bags, in particular to an aluminum-plastic composite bag printing machine and a printing method of an aluminum-plastic composite bag.
Background
The aluminum-plastic composite bag is a packaging product integrating various packaging advantages, and has the advantages of low cost and exquisite printing; the product has: antistatic, ultraviolet-proof, moisture-proof, oxygen-proof, light-proof, cold-resistant, oil-resistant, high-temperature-resistant, fresh-keeping, oxygen-proof, and easy-to-seal.
The existing printing aluminum-plastic composite bag has the advantages of higher and higher speed and more exquisite quality requirements, and the requirements of small-scale aluminum-plastic composite bag small-batch color printing cannot be met only by the process and equipment.
The existing aluminum-plastic composite bag color printing device is generally a large-scale mass production machine, and can perform printing work well only when a printed substrate has a fixed size, the small-sized substrate cannot be printed due to the limitation of positioning and the length of a printing roller, even if the printing is reluctant, the printing quality is poor due to the deviation or other problems of the substrate during the operation, and even the printing machine can be damaged.
The technical personnel in the field do not need to research and develop equipment aiming at some small-specification printing patterns produced in large scale, but a set of printing equipment is specially researched and developed, which not only wastes unnecessary research and development time and cost, but also is effective only aiming at a certain fixed-specification printing product, if the specification changes, the equipment needs to be modified again, and if the small-specification matrix in small scale is printed, the small-specification matrix in small scale is not paid.
The invention patent with application publication number CN 107839366A discloses a membrane bag printing method and a membrane bag printing device, which are mainly technically characterized in that a membrane bag to be printed is placed on a liquid bag, the membrane bag on the liquid bag is printed by a printing grinding tool, and the printing of the membrane bag is completed by utilizing the principle that the pressures of fluids in the liquid bag in all directions are equal, so that the printing quality is ensured; however, the problem of batch printing of small-sized film bags still cannot be solved because the film bags have fixed-size limitations.
Disclosure of Invention
In order to solve the problem that the existing large-scale printing machine cannot produce small-size aluminum-plastic composite bags in small batches, the invention provides an aluminum-plastic composite bag printing machine and a printing method of the aluminum-plastic composite bags, and a lithographic printing machine is modified to achieve the purpose of producing the small-size aluminum-plastic composite bags in small batches.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an aluminum-plastic composite bag printing machine comprises printing units, wherein connecting plates are arranged between the printing units, paper storage rollers for transferring printing paper are arranged below the connecting plates, the number of the printing units is at least two, a UV curing device is arranged behind each printing unit, and the lower surfaces of the connecting plates of the UV curing devices are fixedly connected;
the UV curing device comprises a shell, UV lamp tubes and a control switch, wherein a plurality of UV lamp tubes are arranged in the shell, the UV lamp tubes are cylindrical, the UV lamp tubes are arranged in the shell at equal intervals, the UV lamp tubes are connected to the control switch through cables, and the control switch is fixed on a control panel of the printing unit;
the casing comprises roof, preceding curb plate and posterior lateral plate and apron, and the connecting plate fixed connection of roof upper surface and printing unit, roof and preceding curb plate, roof and posterior lateral plate, roof and apron are articulated, roof, apron are rectangular plate body, preceding curb plate and posterior lateral plate are the pentagon plate body, and the bottom of preceding curb plate and posterior lateral plate is the arc inwards sunken, and preceding curb plate and posterior lateral plate can be dismantled with the apron and be connected.
Furthermore, the cover plate is respectively provided with a light shielding layer, a light reflecting film layer and a transparent heat insulation layer from outside to inside, the cover plate comprises an upper cover plate and a lower cover plate, the upper cover plate is hinged with the lower cover plate, and the lower end of the lower cover plate is bent inwards to form an L shape.
Further, the outer surface of the shading layer of the cover plate, the outer surface of the front side plate and the outer surface of the rear side plate are all fixedly provided with bar magnets.
Further, the radius of the arc-shaped concave parts at the bottoms of the front side plate and the rear side plate is larger than that of the paper storage roller.
Further, the printing method of the aluminum-plastic composite bag by using the aluminum-plastic composite bag printing machine comprises the following steps:
(1) pretreatment: the pretreatment comprises ground color, compounding, curing and bag making, wherein the ground color is coated on the surface layer, and the surface layer of the aluminum-plastic composite layer is compounded with the aluminum foil layer and the enhancement layer; two manufactured aluminum-plastic composite layers are cured, then the reinforcing layers are oppositely arranged, adjacent rectangular closed cavities are formed through hot pressing, and a plurality of closed cavities form a combined aluminum-plastic composite bag;
(2) printing: the combined plate aluminum-plastic composite bag sequentially passes through a plurality of printing units, each printing unit prints a color for the combined plate aluminum-plastic composite bag, and UV ink on the surface of the combined plate aluminum-plastic composite bag is irradiated by a UV curing device arranged below the connecting plate and is rapidly cured in the process of being driven by the paper storage roller to rotate and transmit to the next printing unit when passing through the paper storage roller at the joint of the printing units;
(3) and (3) post-treatment: and post-treatment comprises UV gloss oil and cutting, the integral yoke plate aluminum-plastic composite bag is coated with the UV gloss oil, and the UV gloss oil is cut along a hot-pressing side line according to the size of the aluminum-plastic composite bag after curing to form a finished product.
Further, the united aluminum-plastic composite bag is used for exhausting air between the two aluminum-plastic composite layers before hot pressing.
Further, sealing edges are formed at the hot-pressing position of the combined aluminum-plastic composite bag, and the sealing edges are in a grid shape; a hexagonal marking port is arranged on the sealing edge; the width of the sealed edge is 2 mm-40 mm.
Through the technical scheme, the invention has the beneficial effects that:
the shell of the aluminum-plastic composite bag printing machine comprises a top plate, a front side plate, a rear side plate and a cover plate, wherein the upper surface of the top plate is fixedly connected with a connecting plate of a printing unit; the outer surface of the shading layer of the cover plate, the outer surface of the front side plate and the outer surface of the rear side plate are all fixedly provided with bar magnets; can dismantle preceding curb plate and posterior lateral plate and apron separately at maintenance or maintenance in-process to adsorb on the connecting plate by bar magnet, reduce UV curing device's occupation space, do not influence maintenance and maintenance, and resume being connected of preceding curb plate and posterior lateral plate and apron again after maintenance and maintenance are ended, UV curing device can normal use.
The cover plate of the aluminum-plastic composite bag printing machine is provided with a light shielding layer, a light reflecting film layer and a transparent heat insulation layer from outside to inside, the cover plate comprises an upper cover plate and a lower cover plate, the upper cover plate is hinged with the lower cover plate, the lower cover plate is bent to be L-shaped, the light reflecting layer on the cover plate can reflect ultraviolet rays emitted by a UV lamp tube to an opening, the ultraviolet irradiation intensity of a printing stock is enhanced, the UV ink curing is accelerated, the lower cover plate is bent to be L-shaped, the irradiation range of the ultraviolet rays can be restricted, and the ink curing on a rubber cloth or other ink rollers caused by the leakage of the.
In the printing method of the aluminum-plastic composite bag, two manufactured aluminum-plastic composite layers are cured and then the reinforcing layers are oppositely arranged, and are hot-pressed to form adjacent rectangular closed cavities, and a plurality of closed cavities form a combined aluminum-plastic composite bag; a plurality of aluminum-plastic composite bags jointly form a large printing plane, and the problem that small-size aluminum-plastic composite bags cannot be printed in batches can be solved.
In the printing method of the aluminum-plastic composite bag, the hot-pressed part of the combined plate aluminum-plastic composite bag forms an edge sealing, and the edge sealing is in a grid shape; a hexagonal marking port is arranged on the sealing edge; the width of the sealed edge is 2 mm-40 mm; coating UV gloss oil on the whole of the yoke plate aluminum-plastic composite bag, and cutting along the hot-pressing side line according to the size of the aluminum-plastic composite bag after curing to form a finished product; the edge sealing formed by hot pressing not only has the function of fixing the aluminum-plastic composite layers and preventing the two aluminum-plastic composite layers from shifting due to relative sliding, but also can be used for sealing a single aluminum-plastic composite bag.
Drawings
FIG. 1 is a schematic structural diagram of an aluminum-plastic composite bag printing machine according to the present invention;
FIG. 2 is a schematic structural diagram of a UV curing device of the aluminum-plastic composite bag printing machine according to the present invention;
FIG. 3 is a cross-sectional view of a UV curing device of the aluminum-plastic composite bag printing machine of the present invention;
FIG. 4 is a structure diagram of a cover plate layer of the aluminum-plastic composite bag printing machine of the present invention;
FIG. 5 is a schematic diagram showing the relative positions of a UV curing device and a paper storage roller of the aluminum-plastic composite bag printing machine according to the present invention;
FIG. 6 is a process flow chart of a printing method of an aluminum-plastic composite bag according to the present invention;
fig. 7 is a detailed illustration of the printing steps in the printing method of the aluminum-plastic composite bag according to the present invention;
fig. 8 is a hot pressing effect diagram of the combined aluminum-plastic composite bag in the printing method of the aluminum-plastic composite bag of the invention.
The reference numbers in the drawings are as follows: 1 is the printing unit, 2 is the connecting plate, 3 is UV solidification equipment, 4 is the roof, 5 is the upper cover plate, 6 is lower apron, 7 is preceding curb plate, 8 is bar magnet, 9 is the UV fluorescent tube, 10 is the posterior lateral plate, 11 is transparent insulating layer, 12 is reflection of light rete, 13 is the light shield layer, 14 is the paper storage roller, 15 is the casing, 16 is for alliing oneself with the compound bag of version plastic-aluminum, 17 is the banding, 18 is the mark mouth.
Detailed Description
The invention is further described with reference to the following figures and detailed description:
as shown in fig. 1 to 5, the aluminum-plastic composite bag printing machine comprises printing units 1, wherein a connecting plate 2 is arranged between the printing units, at least two printing units 1 are arranged below the connecting plate 2, paper storage rollers 14 for transferring printing paper are arranged behind each printing unit 1, a UV curing device 3 is arranged behind each printing unit 1, and the UV curing devices 3 are fixedly connected with the lower surface of the connecting plate 2;
the UV curing device 3 comprises a shell 15, UV lamps 9 and a control switch, wherein the plurality of UV lamps 9 are arranged in the shell 15, the UV lamps 9 are cylindrical, the plurality of UV lamps 9 are arranged in the shell 15 at equal intervals, the UV lamps 9 are connected to the control switch through cables, and the control switch is fixed on a control panel of the printing unit 1;
In this embodiment, the apron is light shield layer 13, reflection of light rete 12 and transparent insulating layer 11 by outside to inside respectively, light shield layer 13 mainly is metals such as carbon steel or stainless steel, board reflection of light rete 12 is the multilayer metal film composite layer of Cu/Ti, the reflection of light layer on the apron can reflect the ultraviolet ray of UV fluorescent tube 9 transmission to the opening part, the ultraviolet irradiation intensity of reinforcing stock, accelerate UV printing ink solidification, the apron includes upper cover plate 5 and lower apron 6, upper cover plate 5 is articulated with lower apron 6, the lower extreme of lower apron 6 is inwards buckled and is "L" shape, can retrain the ultraviolet irradiation scope, prevent that the ultraviolet ray from revealing and leading to the printing ink solidification on rubber cloth or other inking roller.
In this embodiment, the shading layer 13 surface of apron, preceding curb plate 7 surface and the equal fixed bar magnet 8 that is provided with of posterior lateral plate 10 surface, the preceding curb plate 7 that unties is torn open, posterior lateral plate 10 and apron all can use bar magnet 8 to adsorb on two printing unit 1 between connecting plate 2, and preceding curb plate 7, posterior lateral plate 10, apron and connecting plate 2 are in same plane this moment, reduce occupation space, do not influence maintenance and maintenance work.
The radius of the arc-shaped concave at the bottom of the front side plate 7 and the rear side plate 10 is larger than that of the paper storage roller 14.
The printing unit 1 in the embodiment of the invention adopts a Heidelberg PM52 single-sheet offset press, and the UV lamp tube 9 adopts an XRL-5.6KW type UV high-pressure mercury lamp produced by Shenzhen auspicibang technology Limited.
During production, the UV curing device 3 is started, and because ultraviolet rays emitted by the UV lamp tube 9 are all around, the ultraviolet rays towards the top plate 4 and the cover plate are reflected by the reflective film layer 12, so that the light intensity at the opening at the bottom is enhanced, the curing of UV ink is accelerated, and compared with the usage rate of at most 25% of a common ultraviolet lamp tube, the UV curing device 3 can improve the utilization rate of the ultraviolet lamp tube, shorten the curing time of the UV ink, and is suitable for rapid batch printing.
Referring to fig. 6 to 8, the printing method of the aluminum-plastic composite bag using the above printing machine for the aluminum-plastic composite bag includes the following steps:
(1) pretreatment: the pretreatment comprises base color, compounding, curing and bag making, wherein a surface layer BOPP layer or a PET layer is coated with the base color which is generally white or golden; compounding the surface layer of the aluminum-plastic composite layer with an aluminum-plated layer of an aluminum foil layer or the aluminum foil layer, a PE layer of an enhancement layer or a CPP (chlorinated Polypropylene) steaming-resistant layer, a nylon layer, a special missible oil layer and the like; the two manufactured aluminum-plastic composite layers are cured, the reinforcing layers are oppositely arranged, adjacent rectangular closed cavities are formed through hot pressing, the plurality of closed cavities form the combined aluminum-plastic composite bag 16, and the plurality of aluminum-plastic composite bags are combined to form a large printing plane, so that the problem that small-size aluminum-plastic composite bags cannot be printed in small batches can be solved;
(2) printing: the united-plate aluminum-plastic composite bag 16 sequentially passes through a plurality of printing units 1, each printing unit 1 prints a color for the united-plate aluminum-plastic composite bag 16, and UV ink on the surface of the united-plate aluminum-plastic composite bag is irradiated by a UV curing device 3 arranged below the connecting plate 2 and is rapidly cured in the process of being driven by a paper storage roller 14 to rotate and transmit to the next printing unit 1 when passing through the paper storage roller 14 at the joint of the printing units 1;
(3) and (3) post-treatment: the post-treatment comprises UV gloss oil and cutting, the integral connecting plate aluminum-plastic composite bag is coated with the UV gloss oil, the UV gloss oil is cut along a hot-pressing side line according to the size of the aluminum-plastic composite bag after curing to form a finished product, the finished product is firstly manufactured and then printed, the size is combined with the lithographic printing requirement during printing, the finished product is cut into bags meeting the composite use requirement after printing, and the opening of each bag is located at the position of a dotted line in figure 8.
In this embodiment, the united-plate aluminum-plastic composite bag 16 eliminates air between two aluminum-plastic composite layers before hot pressing, reduces the thickness of the aluminum-plastic composite bag, and facilitates printing.
Preferably, the hot-pressed part of the combined aluminum-plastic composite bag 16 forms a sealing edge 17, and the sealing edge 17 is in a grid shape; a hexagonal marking port 18 is arranged on the sealing edge 17; the width of the sealing edge 17 is 2 mm-40 mm, and the sealing edge 17 formed by hot pressing not only has the function of fixing the aluminum-plastic composite layer and preventing the two aluminum-plastic composite layers from sliding relatively to cause deviation, but also can be used as the sealing edge 17 of a single aluminum-plastic composite bag.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made to the technical solution of the present invention within the scope of disclosure without departing from the spirit of the present invention.
Claims (5)
1. The aluminum-plastic composite bag printing machine comprises printing units (1), wherein connecting plates (2) are arranged between the printing units, and paper storage rollers (14) for transferring printing paper are arranged below the connecting plates (2), and is characterized in that the number of the printing units (1) is at least two, a UV curing device (3) is arranged behind each printing unit (1), and the UV curing devices (3) are fixedly connected with the lower surfaces of the connecting plates (2);
the UV curing device (3) comprises a shell (15), UV lamp tubes (9) and a control switch, wherein the plurality of UV lamp tubes (9) are arranged in the shell (15), the UV lamp tubes (9) are cylindrical, the plurality of UV lamp tubes (9) are arranged in the shell (15) at equal intervals, the UV lamp tubes (9) are connected to the control switch through cables, and the control switch is fixed on a control panel of the printing unit (1);
the shell (15) is composed of a top plate (4), a front side plate (7), a rear side plate (10) and a cover plate, the upper surface of the top plate (4) is fixedly connected with a connecting plate (2) of the printing unit (1), the top plate (4) is hinged with the front side plate (7), the top plate (4) is hinged with the rear side plate (10) and the cover plate, the top plate (4) and the cover plate are rectangular plate bodies, the front side plate (7) and the rear side plate (10) are pentagonal plate bodies, the bottoms of the front side plate (7) and the rear side plate (10) are inwards sunken to form an arc shape, the front side plate (7) and the rear side plate (10) are detachably connected with the cover plate, the cover plate is respectively provided with a light shielding layer (13), a light reflecting film layer (12) and a transparent heat insulation layer (11) from outside to inside, the cover plate comprises an upper cover plate (5) and a lower cover plate (6), the upper cover plate (5) is hinged with the lower cover plate, and bar magnets (8) are fixedly arranged on the outer surface of the shading layer (13) of the cover plate, the outer surface of the front side plate (7) and the outer surface of the rear side plate (10).
2. The aluminum-plastic composite bag printing machine according to claim 1, wherein the radius of the arc-shaped recess at the bottom of the front side plate (7) and the rear side plate (10) is larger than the radius of the paper storage roller (14).
3. The printing method of the aluminum-plastic composite bag by using the aluminum-plastic composite bag printing machine as claimed in any one of claims 1 to 2, characterized by comprising the following steps:
(1) pretreatment: the pretreatment comprises ground color, compounding, curing and bag making, wherein the ground color is coated on the surface layer of the aluminum-plastic composite layer, and the surface layer is compounded with the aluminum foil layer and the enhancement layer; after being cured, the two manufactured aluminum-plastic composite layers are oppositely arranged in the reinforcing layer, and are hot-pressed to form adjacent rectangular closed chambers, and the closed chambers form a combined aluminum-plastic composite bag (16);
printing: the combined aluminum-plastic composite bag (16) sequentially passes through the plurality of printing units (1), each printing unit (1) prints a color for the combined aluminum-plastic composite bag (16), and UV ink on the surface of the combined aluminum-plastic composite bag is irradiated by a UV curing device (3) arranged below the connecting plate (2) and is cured quickly in the process of being driven by the paper storage roller (14) to rotate and transmit to the next printing unit (1) when passing through the paper storage roller (14) at the joint of the printing units (1);
and (3) post-treatment: and post-treatment comprises UV gloss oil and cutting, the integral yoke plate aluminum-plastic composite bag is coated with the UV gloss oil, and the UV gloss oil is cut along a hot-pressing side line according to the size of the aluminum-plastic composite bag after curing to form a finished product.
4. The printing method of the aluminum-plastic composite bag according to claim 3, wherein the united aluminum-plastic composite bag (16) excludes air between two aluminum-plastic composite layers before hot pressing.
5. The printing method of the aluminum-plastic composite bag according to claim 3, wherein the sealing edge (17) is formed at the hot-pressed part of the combined aluminum-plastic composite bag (16), and the sealing edge (17) is in a grid shape; a hexagonal marking opening (18) is arranged on the sealing edge (17); the width of the sealing edge (17) is 2 mm-40 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662458.6A CN110254043B (en) | 2019-07-22 | 2019-07-22 | Aluminum-plastic composite bag printing machine and printing method of aluminum-plastic composite bag |
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| CN201910662458.6A CN110254043B (en) | 2019-07-22 | 2019-07-22 | Aluminum-plastic composite bag printing machine and printing method of aluminum-plastic composite bag |
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| CN110254043B true CN110254043B (en) | 2021-04-02 |
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| CN110682552B (en) * | 2019-10-10 | 2021-05-14 | 枣庄正奇包装科技有限公司 | Preparation method of medium-free printing air bubble film |
| CN111038092A (en) * | 2019-12-09 | 2020-04-21 | 高斯图文印刷系统（中国）有限公司 | Mounting structure of UV curing device of roll paper offset press |
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