CN111497434A

CN111497434A - Printing/coating equipment

Info

Publication number: CN111497434A
Application number: CN202010494027.6A
Authority: CN
Inventors: 周嘉洛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-08-07

Abstract

The invention relates to the technical field of printing or coating, in particular to printing/coating equipment which comprises an unwinding device, at least two groups of printing/coating devices, a rear drying device, a plurality of rollers and a material receiving device for collecting coiled materials, wherein at least the last group of printing/coating devices is provided with a steering roller; and the rollers from the first group of printing/coating device to the later drying device are positioned on the same surface of the non-printing surface of the coiled material. Between the printing/coating device and the post-drying device, the non-printing surface of the coiled material is contacted with the roller to limit the quality problems of dragging of the printing surface of the coiled material, stretching of the coiled material, inaccurate overprinting and the like caused by over-drying, and further improve the quality, the production speed and the efficiency of products.

Description

Printing/coating equipment

Technical Field

The invention relates to the technical field of printing and/or coating, in particular to printing/coating equipment.

Background

Printing and coating equipment is commonly used in the print packaging industry. The printing/coating equipment in the printing and packaging industry is mainly of a rotary type (printing and coating a roll), and the structures of the traditional printing/coating equipment comprise a satellite type, a laminated type and a combined type.

The assembly type printing equipment is not beneficial to popularization and application due to the fact that the guide roller is required to be completely dried after each color set is printed (the guide roller is contacted with a printing surface during printing), and the assembly type printing equipment is long in length, large in occupied area, large in energy consumption and high in quality problem caused by drying.

Due to the limitations of the feeding and discharging characteristics, the positions and the angles of the satellite type and the stacked type printing equipment, the number of printing and coating color sets which can be arranged on the color bases is limited, and generally, each color base can only be provided with 6-8 color sets, otherwise, the drying of the coiled material, the mounting position and the circumference of a printing/coating roller of the coiled material, the operation convenience of the printing/coating equipment and the like are influenced, and the equipment investment is required to be greatly increased for solving the problems.

When more color sets are needed, the current approach is to increase the installation of color holders; because the satellite type and the stacked type are limited by the feeding and discharging characteristics, the position and the angle, the traditional solution method is as follows: after the coiled material is printed and coated by the first color holder, the coiled material must be dried (completely dried) to enter the next color holder (see the attached figure 1), so that the traveling length of the coiled material is increased, the rejection rate is greatly increased, and a guide roller can contact a printing surface during printing and coating, thereby affecting the quality of a product; generally, ink and paint on the coil must be completely dried to ensure that the coil is not dragged; however, the web needs to be completely dried before entering the next color station, which may cause the web to stretch due to excessive drying (exceeding the critical point of web stretching deformation), resulting in inaccurate printing and coating overprinting. Thus restricting the development of overprint precision and multicolor printing.

Therefore, there is a conventional trend to try to install a plurality of color sets on the same color bed (the number is still very limited), but this causes other drying problems, such as too short distance between color sets, limited production speed, production efficiency and length of printing/coating cylinder, inconvenient operation, etc., the practical performance of the equipment is severely limited, and in order to balance the above disadvantages, the equipment is more complicated, bulkier and more expensive, but the final problem still cannot be completely solved.

The satellite type and laminated type printing equipment can enter the next color seat only after complete drying due to the limitation of feeding and discharging characteristics, positions and angles so as to avoid scraping the printing surface by a roller; referring to the prior chinese utility model with publication number CN207942799U, a ten-color combination type gravure printing machine is disclosed, in which when a roll material is transferred from a first impression cylinder to a second impression cylinder, if the roll material is not completely dried, the roll material enters a color group of the second impression cylinder, the printing surface of the roll material inevitably contacts with a guide roller and a plate cylinder, and is dragged by the plate cylinder, thereby affecting the product quality and production efficiency, and when the roll material is serious, the roll material is completely changed into waste products; therefore, a drying device must be arranged between the first impression cylinder and the second impression cylinder, and the coiled material dried by the drying device can be subjected to stretching deformation (the product length is not the standard length of the original plate cylinder), so that the offset of the coiled material on the second impression cylinder occurs. In addition, due to the satellite arrangement, the second impression cylinder has no enough position for reasonable arrangement of drying and rolling due to the limitation of the feeding and discharging characteristics, positions and angles, and the operation difficulty is also inevitably increased.

Due to the national policy of environmental protection, recyclability and continuous development, the reduction of felling trees, the popularization of paper making by recycling, and the adoption of water-based ink and coating for printing and coating are great trends; but the fibers recycled to make paper are not as short and flexible. Moreover, the water-based ink and the coating are not easy to dry, the circulation re-papermaking is wet by the water-based ink and the coating in the printing and coating processes and then is dried, the expansion and contraction are different, so that more overprinting problems can occur in the printing process, the rejection rate is increased, and the printing speed and the printing precision are reduced.

The present invention proposes a novel printing/coating apparatus which addresses the above problems and solves them fundamentally and can add color sets as needed without limitation. Compared with the existing rotary printing equipment for the web material, the rotary printing equipment for the web material has the advantages of widening the product/process range, improving the printing quality and grade, realizing high-speed, high-efficiency and stable production, saving energy, reducing the rejection rate, greatly reducing the production cost and the like.

Disclosure of Invention

The invention aims to provide a printing/coating device which has low manufacturing cost, is convenient for adding color groups and is flexibly arranged; the printing/coating device is provided with a turning roller so that the coiled material can be conveniently turned to another printing/coating device or a drying device through the turning roller, and the color gamut can be increased, so that more exquisite products can be prepared; the distance between two adjacent color bases and the coiled materials between the color groups are shortened, so that the rejection rate is effectively reduced.

The above object of the present invention is achieved by the following technical solutions:

a kind of printing/coating apparatus, including unwinding device, at least two groups of printing/coating devices, after-drying device, several running rollers and material collecting device used for collecting the coiled material, there are deflector rolls on the last group of printing/coating devices at least, the coiled material that the said unwinding device gives out enters the after-drying device to dry after the deflector roll of the last group of printing/coating devices is turned round, receive the material by the material collecting device; and the rollers from the first group of printing/coating device to the later drying device are positioned on the same surface of the non-printing surface of the coiled material.

By adopting the technical scheme, the coiled material is turned by the turning roller at the last printing/coating device so as to limit the phenomenon that the coiled material is dragged on the printing/coating device. On the other hand, depending on the arrangement of the printing/coating devices, it is only necessary to add a turning roll arranged between the respective printing/coating devices to turn the web over the turning roll before it enters the next printing/coating device, in order to increase the color gamut of the printing/coating apparatus. In this way, the printed surface can be kept free from contact with any rollers, despite the addition of several printing/coating devices, since the web is diverted by the diverting roller. The rollers from the first group of printing/coating device to the later drying device are positioned on the same surface of the non-printing surface of the coiled material, and the non-printing surface of the coiled material between the printing/coating device and the later drying device is in contact with the rollers, so that the printing/coating quality of the coiled material is improved, and the quality of a product is improved. A post-drying device is not arranged between the two adjacent groups of printing/coating devices, so that on one hand, the deformation of the coiled material is reduced, the overprinting accuracy is improved, and high-quality products are printed; on the other hand, the manufacturing cost of the printing/coating equipment is reduced, and the market competitiveness of the printing/coating equipment is favorably improved; in the actual application process of the printing/coating equipment, the loss is reduced, the energy is saved, the cost is reduced, the speed and the efficiency are improved, and the improvement of the overall economic benefit and the market competitiveness is facilitated.

The invention is further configured to: the deflection roller forms an adjustable angle with the axis of the printing/coating device, the deflection roller preferably forming an angle of 45 ° with the axis of the printing/coating device.

By adopting the technical scheme, the steering roller and the axis of the printing/coating device form an adjustable angle, so that the coiled material can be conveniently steered by the steering roller, and the path of the coiled material on the printing/coating device is enriched; the angle formed by the turning roll and the axis of the printing/coating device is preferably 45 deg. so that the web is turned vertically by the turning roll, thereby avoiding contact of the printing surface with the guide roll and maintaining the product quality of the web.

The invention is further configured to: one or more turning rollers are arranged and are positioned between the two groups of printing/coating devices; and/or the turning roller is positioned between the printing/coating device and the unreeling device; and/or the turning roll is positioned between the printing/coating device and the post-drying device; and/or the steering roller is positioned between the rear drying device and the material receiving device.

By adopting the technical scheme, the coiled material is turned by the turning rollers between the two groups of printing/coating devices, the printing/coating devices and the unreeling device, the printing/coating devices and the rear drying device, and the rear drying device and the material receiving device, so that the arrangement mode of the printing/coating equipment is enriched, the arrangement of the printing/coating equipment is more flexible, and the requirement of the arrangement of the printing/coating equipment on a field is reduced.

By adopting the technical scheme, the coiled material is vertically turned by the turning roller, so that the paths of the coiled material on printing/coating are enriched, and the arrangement mode of printing/coating equipment is enriched.

The invention is further configured to: the roll comprises a lead-in roller, the lead-in roller is positioned between the two groups of printing/coating devices, and the coiled material is led into the printing/coating devices through the lead-in roller.

By adopting the technical scheme, the coiled material is guided into the printing/coating device from the guide-in roller between the two groups of printing/coating devices, and the mode of the coiled material entering the printing/coating devices is enriched.

The invention is further configured to: the unreeling device, the two groups of printing/coating devices, the rear drying device and the material receiving device are at least arranged on two axes.

By adopting the technical scheme, the arrangement modes of the unreeling device, the two groups of printing/coating devices, the rear drying device and the material receiving device are enriched, so that the arrangement modes of the printing/coating devices are enriched, the setting that the traditional printing device is required to be arranged on the same axis is broken through, and the setting that the coiled material path of the traditional printing device is required to be arranged on the same axis is broken through.

The invention is further configured to: the post-drying device and/or the material receiving device are arranged perpendicular to or parallel to the axes of the two groups of printing/coating devices.

By adopting the technical scheme, the arrangement modes of the rear drying device, the material receiving device and the printing/coating device are enriched, so that the arrangement modes of the printing/coating equipment are enriched, the arrangement modes of the printing/coating equipment are more flexible, and the requirements of the arrangement of the printing/coating equipment on a field are reduced.

The invention is further configured to: the turning roll comprises a guide roll and/or an air shaft.

By adopting the technical scheme, the steering roller can be one of a guide roller or an air shaft, and also can be the guide roller and the air shaft.

The invention is further configured to: the printing/coating device comprises a color seat and a plurality of color groups arranged on the color seat; the color groups are preferably symmetrically or asymmetrically arranged on the color seat; the color groups on the color seat are preferably arranged in a bookshelf type, a satellite type and/or a combined type.

By adopting the technical scheme, the mode of the color set arranged on the color seat is enriched, so that the color set is arranged on the color seat in a proper mode according to actual needs.

The invention is further configured to: the material receiving device comprises a winding mechanism and/or a cutting/folding material receiving mechanism.

By adopting the technical scheme, the winding mechanism corresponds to the unwinding device, so that the winding mechanism can conveniently wind up the coiled material discharged by the unwinding device; the cutting/folding receiving mechanism cuts the coiled material discharged by the unwinding device, and then receives the coiled material in a single sheet or multiple sheets in a folding manner.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the printing surface does not contact with the roller in the printing/coating process, so that the printing/coating quality is not affected by the dragging of the pattern;

2. after the printing/coating process is completed, the coiled material enters a post-drying device (is completely dried), so that the quality problems of coiled material expansion, inaccurate overprinting and the like caused by excessive drying in the printing process are fundamentally avoided;

3. because only partial and incomplete drying is needed in the printing/coating process, the production speed can be increased by times, the energy consumption can be reduced, and the flexo printing speed of 350 m/min advocated by the state can be easily achieved;

4. the distance between the color seat and the color group is shortened, the material loss in the overprinting process is greatly reduced, and the rejection rate is reduced;

5. the number of color groups can be multiplied by increasing the number of color bases, the printing/coating process is improved, higher-end and colorful products can be manufactured by increasing the color gamut, the coating amount, the coating times and the like of the products, and the application range is greatly increased;

6. the unreeling device, the printing/coating device, the post-drying device, the material receiving device and the like are arranged on at least two axes, so that printing/coating equipment can be flexibly arranged according to a production field;

7. the total length of the whole set of printing/coating equipment is centralized and shortened, so that an operator can operate the equipment more easily and conveniently;

8. the problems of overprinting and unstable quality are solved from the source, the design can be simplified, the equipment cost can be reduced, and a stable foundation is laid for the high-efficiency speed increase of data-based and intelligent equipment and production;

9. by combining the above steps, the benefits of enterprises are greatly improved;

10. the invention greatly improves the application range of the environment-friendly recycled paper making and the environment-friendly water-based ink/coating, has high efficiency and low energy consumption, contributes to environmental protection and greatly increases social benefits.

Drawings

FIG. 1 is a schematic view of a conventional printing apparatus;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a top view of the present invention;

FIG. 5 is a top view of the present invention;

FIG. 6 is a top view of the present invention;

fig. 7 is a top view of the color wheel and turning roll of the present invention.

In the figure, 1, a frame; 2. an unwinding device; 3. a material receiving device; 4. a printing/coating device; 41. a color base; 42. color groups; 421. a printing cylinder; 422. a printing cylinder; 423. a horn; 5. a roller; 51. a turning roll; 52. a guide roller; 53. a lead-in roller; 6. a traction device; 7. a post-drying device; 8. and (4) rolling the material into a roll.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2 and 3, the printing/coating apparatus disclosed by the present invention comprises an unwinding device 2, a frame 1 and a receiving device 3, wherein the frame 1 is provided with a traction device 6, at least two groups of printing/coating devices 4, a post-drying device 7 and a plurality of rollers 5;

wherein, unwinding device 2 and material collecting device 3 are located the frame 1 outside, and unwinding device 2 and material collecting device 3 are located the both sides of two sets of printing/coating device 4, and unwinding device 2, draw gear 6, two sets of printing/coating device 4, back drying device 7, another draw gear 6 and material collecting device 3 set gradually to the coiled material 8 that unwinding device 2 discharged is in proper order through draw gear 6, two sets of printing/coating device 4, back drying device 7, another draw gear 6 receive the material through material collecting device 3. The roller 5 comprises a steering roller 51, the steering roller 51 can be one of a guide roller and an air roller, the steering roller 51 is at least arranged on the last group of printing/coating devices 4, the coiled material 8 is steered by the steering roller 51 on the last group of printing/coating devices 4 and then enters the rear drying device 7, on one hand, steering of the coiled material 8 on the printing/coating devices 4 is achieved, on the other hand, the rear drying device 7 is convenient to dry the coiled material 8, the material receiving device 3 is convenient to receive the coiled material 8, the quality of the printed or coated coiled material 8 is improved, and the quality of products is improved. The rollers 5 from the first group of printing/coating devices 4 to the rear drying device 7 are positioned on the same side of the non-printing surface of the coiled material 8, namely the rollers 5 from the first group of printing/coating devices 4 to the rear drying device 7 are positioned on the same side of the non-printing surface of the coiled material 8, so that the non-printing surface of the coiled material 8 is in contact with the rollers 5 between the printing/coating devices 4 and the rear drying device 7, and the printing surface of the coiled material 8 is not in contact with the rollers 5 from the printing/coating devices 4 to the rear drying device 7, thereby being beneficial to improving the quality of printing or coating of the coiled material 8; in the printing/coating process, the printing surface does not contact with the roller, and the printing/coating quality is not affected by the dragging. The traction device 6 is arranged for on the one hand pulling the web 8 and on the other hand adjusting the tightness of the web 8.

The printing/coating device 4 comprises a color seat 41 and a plurality of color groups 42 arranged on the color seat 41, wherein the color groups 42 on the color seat 41 can be arranged as required, and the color groups are symmetrically or asymmetrically arranged on the color seat; the color groups 42 on the color seat 41 are preferably arranged in a bookshelf type, a satellite type and/or a group-vertical type manner, so as to enrich the arrangement manner of the color groups 42 on the color seat 41. Between the color groups 42 on the color bed 41, a partial drying structure is provided, which dries the web 8, but the web 8 is not completely dried, and the partial drying structure is mainly used to preliminarily dry and fix the ink or paint on the web 8 to limit interference of the printed/coated ink or paint on the web 8, thereby improving the quality of the printed or coated web 8 to improve the quality of the product. Wherein, the coiled material 8 comprises a paper roll, a cloth roll, a plastic film or other materials which can be deformed by stretching due to drying, the coiled material 8 is not completely dried between the two groups of printing/coating devices 4 (the critical point of the deformation of the coiled material is avoided being reached), the deformation and the shrinkage of the coiled material 8 are reduced, especially the deformation and the stretching of the paper roll are reduced, the overprinting accuracy of the coiled material 8 between the color groups 42 on the color holder 41 is favorably improved, especially the overprinting accuracy of the paper roll between the color groups 42 on the color holder 41 is favorably improved, so that a product with better quality is produced;

the color group 42 comprises a printing cylinder 421 arranged on the color seat 41, a machine arm 423 arranged on the color seat 41 and a printing cylinder 422 arranged on the machine arm 423, wherein the printing cylinder 421 and the printing cylinder 422 are correspondingly arranged; a gap is formed between the printing cylinder 422 and the printing cylinder 421 for the web 8 to pass through, and the web 8 passes through the gap formed between the printing cylinder 422 and the printing cylinder 421, so that the printing cylinder 422 supports the web 8 and the printing cylinder 422 prints or coats on the web 8.

Referring to fig. 2 and 7, the turning roll 51 provided on the printing/coating device 4 forms an adjustable angle with the axis of the printing/coating device 4, the speed of the web 8 is constant and the web 8 is not folded before and after the web 8 is turned by the turning roll 51 by adjusting the angle formed between the turning roll 51 and the axis of the printing/coating device 4, and the angle formed by the turning roll 51 and the axis of the printing/coating device 4 is preferably 45 °. In the present embodiment, the turning roller 51 is disposed on the color holder 41, the turning roller 51 is disposed at an angle with respect to the axis of the color holder 41, the angle formed by the turning roller 51 and the axis of the color holder 41 is adjustable, and the angle formed by the turning roller 51 and the axis of the color holder 41 is preferably 45 ° so as to facilitate the vertical turning of the web 8 by the turning roller 51; the color holders 41 are arranged in a rectangular shape, the turning rollers 51 are arranged diagonally on the color holders 41 in the rectangular shape, and the turning rollers 51 can be adjusted in angle on the color holders 41, so that the coiled material 8 can be turned vertically by the turning rollers 51.

With reference to fig. 2, 3, 4, 5 and 6, one or more turning rollers 51 may be provided, the turning roller 51 is located between the two groups of printing/coating devices 4, the turning roller 51 is located outside the two groups of printing/coating devices 4, and the turning roller 51 is provided several times between the two groups of printing/coating devices 4, so as to realize the turning of the web 8 by 90 °, 180 °, 270 ° and 360 ° between the two groups of printing/coating devices 4 via the turning roller 51; the turning roller 51 is positioned between the printing/coating device 4 and the unreeling device 2, the turning roller 51 is positioned outside the printing/coating device 4 and the unreeling device 2, a plurality of turning rollers 51 are arranged between the printing/coating device 4 and the unreeling device 2, and the turning of the coiled material 8 between the printing/coating device 4 and the unreeling device 2 by the turning rollers 51 at 90 degrees, 180 degrees, 270 degrees and 360 degrees is realized; the turning roller 51 is positioned between the printing/coating device 4 and the rear drying device 7, the turning roller 51 is positioned outside the printing/coating device 4 and the rear drying device 7, and a plurality of turning rollers 51 are arranged between the printing/coating device 4 and the rear drying device 7, so that the turning of the coiled material 8 between the printing/coating device 4 and the rear drying device 7 by 90 degrees, 180 degrees, 270 degrees and 360 degrees through the turning rollers 51 is realized; the turning roller 51 is positioned between the rear drying device 7 and the receiving device 3, the turning roller 51 is positioned outside the rear drying device 7 and the receiving device 3, a plurality of turning rollers 51 are arranged between the rear drying device 7 and the receiving device 3, and the turning of the coiled material 8 at 90 degrees, 180 degrees, 270 degrees and 360 degrees between the rear drying device 7 and the receiving device 3 through the turning rollers 51 is realized; a turning roller 51 is arranged at the printing/coating device 4, the turning roller 51 forming an adjustable angle with the axis of the printing/coating device 4, the web 8 being turned by the turning roller 51 to enrich the path of the web 8, the turning roller 51 forming an angle with the axis of the printing/coating device 4 of preferably 45 °;

because the steering roller 51 can be arranged between the two groups of printing/coating devices 4, between the printing/coating devices 4 and the unreeling device 2, between the printing/coating devices 4 and the post-drying device 7 and between the post-drying device 7 and the material receiving device 3, the unreeling device 2, the two groups of printing/coating devices 4, the post-drying device 7 and the material receiving device 3 are arranged on at least two axes, the arrangement mode of the printing/coating equipment is enriched, the arrangement of the printing/coating equipment is more flexible, the requirement on the field when the printing/coating equipment is arranged is reduced, and the limitation that the traditional printing equipment must be arranged on the same axis is broken through. The rear drying device 7 and/or the material receiving device 3 and the two groups of printing/coating devices 4 are preferably arranged vertically or in parallel, so that the arrangement modes of the rear drying device 7, the material receiving device 3 and the two groups of printing/coating devices 4 are enriched, and the arrangement modes of the rear drying device 7, the material receiving device 3 and the two groups of printing/coating devices 4 are more flexible.

The roll 5 further comprises a lead-in roller 53 and a guide roller 52, the lead-in roller 53 and the guide roller 52 being arranged on the frame 1, wherein the lead-in roller 53 is located between the two sets of printing/coating devices 4, and the web 8 is led into the printing/coating devices 4 via the lead-in roller 53, so that the web 8 is fed from between the two sets of printing/coating devices 4, i.e. the web 8 enters the color set 42 on one of the color sets 41 from between the two color sets 41, thereby encircling the other color sets 42. The colour groups 42 on the colour holder 41 may be arranged in six groups, wherein three groups 42 are arranged longitudinally on one side of the colour holder 41, another three groups 42 are arranged on the other side of the colour holder 41, and the web 8 is wound around the other groups 42 from the group 42 at the bottom of one side of the colour holder 41 upwards.

The material receiving device 3 comprises a winding mechanism and/or a cutting/folding material receiving mechanism, and the unwinding device 2 comprises a double-unwinding structure, so that when the material receiving device 3 is arranged as the winding mechanism, the winding mechanism is arranged as a double-winding structure in cooperation with the double-unwinding structure, so that coiled materials discharged by the double-unwinding structure can be wound by the double-winding structure; when the material receiving device 3 is set as a cutting/folding material receiving mechanism, the cutting/folding material receiving mechanism cuts the coiled material discharged from the unwinding device, and then receives the coiled material in a single sheet or multiple sheets.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a printing/coating equipment, includes unwinding device (2), at least two sets of printing/coating device (4), back drying device (7), a plurality of running roller (5) and is used for packing up material collecting device (3) of coiled material (8), its characterized in that: a turning roller (51) is arranged on at least the last group of printing/coating devices (4), and the coiled material (8) discharged by the unwinding device (2) is turned by the turning roller (51) of the last group of printing/coating devices (4), then enters a post-drying device (7) for drying, and is then received by the receiving device (3); the rollers (5) from the first set of printing/coating device (4) to the post-drying device (7) are located on the same side of the non-printed side of the web (8).

2. A printing/coating apparatus according to claim 1, wherein: the deflecting roller (51) forms an adjustable angle with the axis of the printing/coating device (4), the angle formed by the deflecting roller (51) with the axis of the printing/coating device (4) preferably being 45 °.

3. A printing/coating apparatus according to claim 1, wherein: one or more turning rollers (51) are arranged, and the turning rollers (51) are positioned between the two groups of printing/coating devices (4); and/or the turning roll (51) is positioned between the printing/coating device (4) and the unreeling device (2); and/or the turning roll (51) is located between the printing/coating device (4) and the post-drying device (7); and/or the turning roller (51) is positioned between the rear drying device (7) and the material receiving device (3).

4. A printing/coating apparatus according to claim 3, wherein: the deflecting roller (51) forms an adjustable angle with the axis of the printing/coating device (4), the angle formed by the deflecting roller (51) with the axis of the printing/coating device (4) preferably being 45 °.

5. A printing/coating apparatus according to claim 1, wherein: the roll (5) comprises a lead-in roller (53), the lead-in roller (53) is positioned between two groups of printing/coating devices (4), and the coiled material (8) is led into the printing/coating devices (4) through the lead-in roller (53).

6. A printing/coating apparatus according to claim 1 or 3, wherein: the unreeling device (2), the two groups of printing/coating devices (4), the rear drying device (7) and the material receiving device (3) are at least arranged on two axes.

7. A printing/coating apparatus according to claim 6, wherein: the post-drying device (7) and/or the material receiving device (3) are arranged perpendicular to or parallel to the axes of the two groups of printing/coating devices (4).

8. A printing/coating apparatus according to claim 1 or 3, wherein: the turning roll (51) comprises a guide roll and/or an air shaft.

9. A printing/coating apparatus according to claim 1 or 3, wherein: the printing/coating device (4) comprises a color seat (41) and a plurality of color groups (42) arranged on the color seat (41); a plurality of said colour groups (42) are preferably arranged symmetrically or asymmetrically on a colour holder (41); the color groups (42) on the color seat (41) are preferably arranged in a bookshelf type, a satellite type and/or an assembly type.

10. A printing/coating apparatus according to claim 1, wherein: the material receiving device (3) comprises a winding mechanism and/or a cutting/folding material receiving mechanism.