CN212737468U - Flexo printing equipment - Google Patents

Abstract

The application relates to a flexible printing device, which comprises a machine body, an unreeling mechanism, a printing mechanism and a reeling mechanism, wherein the unreeling mechanism, the printing mechanism and the reeling mechanism are sequentially arranged; set up coating mechanism and drying mechanism on the organism, it moulds the layer and improves its waterproof performance to mould the layer at the paper tape surface coating degradable through coating mechanism, drying mechanism is in time dried to rethread, the paper tape of continuous transport passes through printing mechanism again and accomplishes its surperficial printing, finally by good rolling, can accomplish the coating and the printing on paper tape surface degradable layer through on an equipment like this, effectively simplify production, when improving production efficiency, the space of the shared factory of equipment also can be effectively reduced.

Description

Flexo printing equipment

Technical Field

The application relates to the field of printing equipment, in particular to flexo printing equipment.

Background

The flexographic printing machine uses fluid ink with strong fluidity, the ink is transferred to the image-text part of the printing plate by the ink fountain rubber roll and the anilox material transfer roll and is inked, then printing pressure is applied by the press roll cylinder to transfer the ink on the printing plate to a printing stock, and finally, the printing process is finished through a drying surface.

The disposable paper cup surface also forms through printing production, because the paper cup needs flourishing water so it needs to possess good waterproof nature, reaches corresponding waterproof purpose through setting up the PE layer on the paper cup mostly on the market at present, causes in the actual production process to need the printing and add two links on PE layer and realize to it needs go on two equipment of difference, has the low problem of production efficiency.

SUMMERY OF THE UTILITY MODEL

In order to improve production efficiency, the application provides a flexo printing device.

The application provides a flexo printing equipment adopts following technical scheme:

the utility model provides a flexography equipment, includes organism and the unwinding mechanism, printing mechanism and the winding mechanism that set gradually, be provided with the coating mechanism that is used for coating the degradable layer of moulding between unwinding mechanism and the printing mechanism, coating mechanism is including rotating the biography material roller, the coating roller and the backing roll of connecting on the organism, biography material roller and coating roller butt, form the clearance that supplies the paper tape to pass through between coating roller and the backing roll, be provided with drying mechanism between coating mechanism and the printing mechanism.

Through adopting above-mentioned technical scheme, set up coating mechanism and drying mechanism on the organism, it moulds the layer and improves its waterproof performance to mould the layer at the paper tape surface coating degradable through coating mechanism, then drying mechanism is in time dried through the rethread, the paper tape of continuously carrying passes through the printing that printing mechanism accomplished its surface again, finally by good rolling, can accomplish the coating and the printing on paper tape surface degradable plastics layer through on a equipment like this, effectively simplify production, when improving production efficiency, the space of the shared factory of equipment also can be effectively reduced.

Preferably, drying mechanism includes box and infrared heating pipe, infrared heating pipe sets up in the box and is located the paper tape coating and has the one side that the layer was moulded to the degradable.

Through adopting above-mentioned technical scheme, infrared heating pipe has advantages such as the thermal efficiency is high, power density is big, the intensification is rapid, the power saving, longe-lived to with its setting in the one side that has the degradable layer of moulding near the paper tape coating, drying speed is faster when reaching good drying.

Preferably, the machine body is provided with a traction mechanism corresponding to the drying mechanism, the traction mechanism comprises a first traction roller, a second traction roller and a third traction roller which are sequentially arranged along the conveying direction, the first traction roller is positioned between the second traction roller and the third traction roller in the height direction, and the third traction roller is positioned at the bottom of the machine body.

Through adopting above-mentioned technical scheme, with first carry over pinch rolls, second carry over pinch rolls and third carry over pinch rolls according to such mode of arranging, walk around in proper order at the in-process of transmission after the coating is accomplished to the paper tape, can reach the purpose of extension delivery path like this, and the whole length change of organism is little, lets the degradable on the paper tape mould the layer and can obtain abundant drying during this to follow-up printing process's of being convenient for goes on.

Preferably, the traction mechanism is arranged inside the box body.

Through adopting above-mentioned technical scheme, infrared heating pipe lasts the heat production in the box and makes its inside heat abundant, and the paper tape removes the purpose that can reach more abundant drying along drive mechanism in the carton, and drying effect is better.

Preferably, the inner wall of the box body is provided with an air blowing nozzle, and the infrared heating pipe is positioned between the paper tape and the air blowing nozzle.

Through adopting above-mentioned technical scheme, the during operation blowing nozzle is bloied and is in time blown towards the degradable of paper tape on with the heat of infrared heating pipe output, improves the flow of thermal current in the box and moulds the dry solidification of layer in the box in order to further accelerate the degradable.

Preferably, a first drying section is formed between the supporting roll and the first drawing roll, a second drying section is formed between the first drawing roll and the second drawing roll, a baffle is arranged at the top of the box body corresponding to the space between the first drying section and the second drying section, and the air blowing nozzles are arranged on the inner wall of the opposite box body.

Through adopting above-mentioned technical scheme, the relative blowing nozzle that sets up can let the heat that is located box limit portion flow toward the box middle part, lets the degradation that is located the box middle part mould the layer and can obtain better drying, forms a plurality of dry sections moreover.

Preferably, the lower part of box is provided with the baffle and forms epicoele and cavity of resorption, first dry section and second dry section all are located the epicoele, be provided with the perforation on the baffle, the box corresponds the trough that the paper supply area passed on the relative inner wall of cavity of resorption, the export that the paper supply area was worn out is seted up to one side that the box corresponds the epicoele.

Through adopting above-mentioned technical scheme, the heat that produces in the epicoele flows down and enters into the cavity down through the perforation in, and the paper tape is at first dry through the epicoele, then wears out natural air-dry from the epicoele, and reentrant cavity is gone into and is carried out the secondary drying, reaches alternate dry purpose, and drying effect is better and well solve the continuation and be located the box and heat the dry condition that leads to heating excessively.

Preferably, the traction mechanism comprises a fourth traction roller and a fifth traction roller which are sequentially arranged along the conveying direction, the fourth traction roller is positioned above the fifth traction roller, and the height of the fourth traction roller is higher than that of the coating roller.

Through adopting above-mentioned technical scheme, the fourth carry over pinch rolls pulls the paper tape to the top to one side, the purpose that can reach extension conveying path equally and the whole length of organism do not have too big change, the mode that the slope was upwards pull makes the paper tape can not walk around the backing roll after the coating and carry downwards at once, reduce the area of contact of paper tape and backing roll, improve the quality that should locate paper tape surface coating, let the paper tape slope upwards continuously carry one section distance period through the drying solidification after again around the fourth carry over pinch rolls downwards, make coating quality effect better.

Preferably, a turnover mechanism is arranged between the drying mechanism and the printing mechanism.

Through adopting above-mentioned technical scheme, because the required coated degradable of different products when disposable paper cup production moulds the surface different, probably the surface also probably is the internal surface, can satisfy the needs of more productions through setting up turn-over mechanism, in the production process the corresponding degradable of required surface coating of paper tape moulds the layer, possesses better suitability.

Preferably, turn-over mechanism includes the support body and sets up first roll body, second roll body, third roll body and the fourth roll body that the paper supply area walked around in proper order on the support body, first roll body is located the support body bottom, the second roll body is located the support body middle part and the slope sets up, the third roll body is located the side and the vertical setting of support body, the fourth roll body is located the middle part and the slope setting of support body, the fourth roll body is perpendicular with the second roll body, the fifth roll body is located support body back one side and level setting.

Through adopting above-mentioned technical scheme, in the actual production process, the paper tape is at first walked around first roll body and is carried downwards again, walks around the second roll body lateral direction of slope and carries towards the support body middle part after walking around side third roll body, and the fourth roll body of slope is walked around again and is carried downwards, finally walks around the turn-over of fifth roll body completion whole paper tape transportation in-process, simple structure and practicality.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by additionally arranging the coating mechanism and the drying mechanism, the surface printing can be continuously carried out while the degradable plastic layer can be coated on the paper tape on one device, the production flow is simplified, the production efficiency is effectively improved, and the factory space occupied by the production device is reduced;

2. the high-efficiency drying and curing of the degradable plastic layer are realized by adopting an infrared heating pipe mode, the flow of heat in the box body is improved by the air blowing nozzle during the period, and the drying effect is better;

3. the conveying path of the paper tape is effectively prolonged by arranging the traction mechanism, and the influence on the whole length of the whole machine body is not large, so that the degradable plastic layer can be more fully dried before printing;

4. further set up turn-over mechanism, can come to carry the turn-over to the well paper tape through turn-over mechanism according to actual production needs, practicality and suitability are better.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

FIG. 2 is a schematic diagram of a coating mechanism in example 1 of the present application.

Fig. 3 is a structural diagram of a printing mechanism in embodiment 1 of the present application.

Fig. 4 is a structural view of a painting mechanism in embodiment 2 of the present application.

FIG. 5 is a structural view of a painting mechanism in example 3 of the present application.

Fig. 6 is a schematic diagram of the entire structure of embodiment 4 of the present application.

Fig. 7 is a front view of the turn-over mechanism in embodiment 4 of the present application.

Fig. 8 is a schematic view of the turn-over mechanism in embodiment 5 of the present application.

Description of reference numerals: 1. a body; 2. an unwinding mechanism; 21. unwinding rollers; 3. a winding mechanism; 31. a wind-up roll; 4. a coating mechanism; 41. a material conveying roller; 42. a coating roller; 43. a support roller; 5. a printing mechanism; 51. an ink roller; 52. a printing plate roller; 53. a printing roller; 6. a drying mechanism; 61. a box body; 62. an infrared heating pipe; 63. a blowing nozzle; 64. an opening; 65. an upper chamber; 66. a lower cavity; 67. a partition plate; 68. perforating; 69. penetrating a groove; 71. a first pull roll; 72. a second pull roll; 73. a third pull roll; 81. a fourth pull roll; 82. a fifth traction roller; 9. a turn-over mechanism; 91. a frame body; 911. a base; 912. fixing the rod; 913. a movable rod; 914. a cylinder; 915. a slider; 916. a chute; 92. a first roller body; 93. a second roller body; 94. a third roller body; 95. a fourth roller body; 96. a fifth roller body; 10. and (5) an oven.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a flexible printing device.

Example 1

Referring to fig. 1, the flexo printing equipment comprises a strip-shaped machine body 1, wherein an unwinding mechanism 2 is arranged at the head end of the machine body 1, a winding mechanism 3 is arranged at the tail end of the machine body 1, a coating mechanism 4, a drying mechanism 6 and a printing mechanism 5 are sequentially arranged in the middle of the machine body 1 along the conveying direction, and the coating mechanism 4 is used for coating a degradable plastic layer; wherein unwinding mechanism 2 is including rotating the unwinding roller 21 of connection on organism 1, winding mechanism 3 is including rotating the winding roller 31 of connection on organism 1, and be provided with on organism 1 and order about winding roller 31 pivoted driving motor (for not showing in the picture), unwinding roller 21 constantly blowing when realizing the rolling through the rotation of winding roller 31 like this, the paper tape is in proper order through coating mechanism 4, drying mechanism 6 and printing mechanism 5, realize that the layer is moulded to the coating degradable on the paper tape surface, the degradable is moulded the layer and is printed on this surface simultaneously after the drying solidification, effectively simplify production processes, and the production efficiency is improved.

As shown in fig. 2, the coating mechanism 4 includes a material transfer roller 41, a coating roller 42 and a support roller 43, the material transfer roller 41, the coating roller 42 and the support roller 43 are all rotatably connected to the machine body 1, the material transfer roller 41 is abutted against the coating roller 42 to transfer the material, the support roller 43 is lower than the coating roller 42 in height and forms a gap for the paper tape to pass through between the two, so that the coating roller 42 coats the degradable plastic layer coating on the surface of the paper tape in the moving process of the paper tape, and the corresponding coating action is completed.

As shown in fig. 2, the drying mechanism 6 is arranged below the machine body 1 corresponding to the coating mechanism 4, the drying mechanism 6 includes a box body 61 and an infrared heating pipe 62 arranged inside the box body 61, the infrared heating pipe 62 is arranged near one side of the paper tape coated with the degradable plastic layer, and an opening 64 for the paper tape to go in and out is formed in the top of the box body 61, so that the degradable plastic layer on the surface of the paper tape is rapidly dried and solidified, and the subsequent printing and processing are facilitated; be provided with blowing nozzle 63 on the relative inner wall of box 61, blowing nozzle 63 all sets up towards infrared heating pipe 62 direction, and infrared heating pipe 62 is located the degradable plastic layer on the paper tape and blowing nozzle 63 to this improves the good flow of heat in box 61, further improves dry curing efficiency and drying effect.

As shown in fig. 1 and 2, a drawing mechanism for drawing the paper tape is arranged at the position of the machine body 1 corresponding to the drying mechanism 6, the drawing mechanism is positioned in the box body 61, and comprises a first drawing roller 71, a second drawing roller 72 and a third drawing roller 73, wherein 2 second drawing rollers are horizontally arranged at intervals, the height of the first drawing roller 71 is positioned between the first drawing roller 71 and the third drawing roller 73, so that the paper tape which finishes coating firstly bypasses the first drawing roller 71 positioned below, the section is a first drying section, then ascends to the second drawing roller 72 positioned above, the section is a second drying section, and then descends to the third drawing roller 73 positioned at the lowest position by bypassing the second drawing roller 72; under the condition that the whole total length of the machine body 1 is not changed, the stroke of the paper tape is effectively prolonged, and therefore the degradable plastic layer on the paper tape can be dried and solidified more fully.

As shown in fig. 3, the printing mechanism 5 includes an ink roller 51, a printing plate roller 52 and a printing receiving roller 53, the ink roller 51, the printing plate roller 52 and the printing receiving roller 53 are all rotatably connected to the machine body 1, the ink roller 51 abuts against the printing plate roller 52, ink is transferred to the printing plate roller 52 in the rotation process of the ink roller 51, a paper tape passes through between the printing plate roller 52 and the printing receiving roller 53, the printing plate roller 52 prints the ink on the surface of the paper tape to complete printing, a drying mechanism is arranged below the machine body 1 corresponding to the printing mechanism 5, the drying mechanism includes an oven 10, and the paper tape after printing passes through the oven 10 to be dried in time.

As shown in fig. 1, in the present embodiment, the coating mechanism 4 and the drying mechanism 6 are correspondingly disposed and 2 sets are disposed along the length direction of the machine body 1, and the printing mechanism 5 and the drying mechanism are correspondingly disposed and 5 sets are disposed along the length direction of the machine body 1, and in other embodiments, the specific number of the coating mechanism 4 and the printing mechanism 5 can be adjusted according to actual production.

The implementation principle of the flexo printing equipment in the embodiment of the application is as follows: the paper tape firstly passes between the coating roller 42 and the supporting roller 43, the coating roller 42 coats the coating of the degradable plastic layer on the surface of the passing paper tape, and then the paper tape is conveyed downwards to penetrate into the box body 61 and sequentially bypasses the first traction roller 71, the second traction roller 73 and the third traction roller 73, and during the process, drying and curing are realized by the infrared heating pipe 62 in the box body 61; repeating the steps and coating the degradable plastic layer; after coating, the paper tape passes through the space between the printing plate roller 52 and the printing roller 53 to complete surface printing, and the printed paper tape is dried by the oven 10 below and is finally continuously wound by the winding roller 31.

Example 2

Referring to fig. 4, a flexible printing apparatus mainly differs from the drying mechanism 6 in embodiment 1, in which a second drawing roller 72 is located at the top outside a box 61, a third drawing roller 73 is located at the bottom outside the box 61, a partition plate 67 is arranged in the middle of the box 61 to form an upper cavity 65 and a lower cavity 66, a first drawing roller 71 is located in the upper cavity 65, a through hole 68 is formed in the partition plate 67, and an infrared heating pipe 62 is arranged on the opposite inner wall of the upper cavity 65; the opposite side walls of the box body 61 corresponding to the lower cavity 66 are provided with through grooves 69 for the paper tape to pass through, so that the paper tape penetrates into the box body 61 and firstly passes through the upper cavity 65 to realize primary drying and curing, then penetrates out of the box body 61 and is naturally dried to realize secondary drying and curing, and then penetrates into the lower cavity 66 to realize tertiary curing of heating and drying, thereby realizing the aim of drying in multiple stages and different degrees, finally achieving good drying and curing effects on the degradable plastic layer on the paper tape, and reducing the situation that the paper tape is always in the box body 61 and has poor drying effect; wherein the heat of the lower chamber 66 is provided by the upper chamber 65, and wherein the blowing nozzle 63 correspondingly facilitates the heat flow of the upper chamber 65 and the lower chamber 66.

Example 3

As shown in fig. 5, a flexo printing apparatus, which is different from embodiment 1 in the traction mechanism, wherein the traction mechanism comprises a fourth traction roller 81 and a fifth traction roller 82, the fourth traction roller 81 and the fifth traction roller 82 are both rotationally connected on the machine body 1, the fourth traction roller 81 is positioned above the coating roller 42 in an oblique direction, i.e. the fourth drawing roller 81 is higher than the application roller 42, and the fifth drawing roller 82 is arranged in correspondence of the bottom of the machine body 1, so that the web passing through the application roller 42 is continuously fed obliquely upwards over a distance, and the machine body 1 is also provided with a drying mechanism 6 at the position corresponding to the distance, the drying mechanism 6 comprises an infrared heating pipe 62 and is positioned at one side close to the paper tape coated with the degradable plastic layer, the degradable plastic layer is dried in time, then the paper tape is conveyed downwards to a fifth traction roller 82 after bypassing a fourth traction roller 81, a drying mechanism 6 is also arranged at the position of the machine body 1 corresponding to the stroke between the fourth traction roller 81 and the fifth traction roller 82; therefore, the paper tape does not need to be bent and turned immediately after coating is finished, a certain distance can be continuously moved, drying and curing can be synchronously realized in the distance, the condition that the quality of the degradable plastic layer at the bent part of the paper tape is influenced due to the fact that the paper tape is bent immediately after coating can be well reduced, and better coating quality can be obtained.

Example 4

As shown in fig. 6, a flexo printing apparatus, which is different from embodiment 1 in that a turn-over mechanism 9 is arranged between a coating mechanism 4 and a printing mechanism 5 corresponding to a machine body 1, and the turn-over in the process of conveying a paper tape is realized through the arrangement of the turn-over mechanism 9, so that the requirements of more production occasions can be met.

As shown in fig. 7, the turn-over mechanism 9 includes a frame body 91 and a first roller 92, a second roller 93, a third roller 94 and a fourth roller 95, which are arranged on the frame body 91 and sequentially provided for the paper tape to bypass, the first roller 92 is arranged at the bottom of the frame body 91 and horizontally arranged, the second roller 93 is arranged at the middle of the frame body 91 and inclined by 45 degrees, the third roller 94 is arranged at the same side edge and vertically arranged, the fourth roller 95 is arranged at the middle of the frame body 91 and also inclined arranged, the fourth roller 95 is opposite to the second roller 93 in inclination direction and perpendicular to the second roller, the second roller 93 and the fourth roller 95 are no longer on the same vertical plane, and the fifth roller 96 is arranged at the bottom of the frame body 91 facing away from one side of the paper tape conveying direction. Like this the paper tape at first bypasses first roll body 92 and carries downwards again, bypasses the lateral transportation of the second roll body 93 of slope, bypasses behind the third roll body 94 of side and carries towards the middle part of support body 91, bypasses the fourth roll body 95 of slope again and carries downwards, finally bypasses fifth roll body 96 and accomplishes the turn-over in the whole paper tape transportation process, simple structure and practicality.

Example 5

As shown in fig. 8, a flexo printing apparatus is different from embodiment 4 in that the flipping mechanism 9 is different, the flipping mechanism 9 includes a frame 91, and a first roller 92, a second roller 93, a third roller 94, and a fourth roller 95, which are disposed on the frame 91 and sequentially around which a paper tape passes, the first roller 92 is disposed at the bottom of the frame 91 and horizontally disposed, the second roller 93 is disposed at the middle of the frame 91 and inclined at 45 degrees, the third roller 94 is disposed at the side of the frame 91 and vertically disposed, the fourth roller 95 is disposed at the middle of the frame 91 and also inclined, the fourth roller 95 and the second roller 93 are opposite in inclination direction and perpendicular to each other, the second roller 93 and the fourth roller 95 are no longer on the same vertical plane, and the fifth roller 96 is disposed at the bottom of the frame 91 opposite to the paper tape conveying direction; the support body 91 includes base 911 and vertical parallel arrangement's montant, the montant includes dead lever 912 and movable rod 913, dead lever 912 bottom is fixed in base 911, movable rod 913 bottom horizontal sliding connection is on base 911, fourth roller 95 sets up the one side at dead lever 912, it has slider 915 all to articulate simultaneously at the both ends of second roller 93 and third roller 94, set up the vertical gliding spout 916 of confession slider 915 on dead lever 912 and movable rod 913, the both ends difference sliding connection of second roller 93 and fourth roller 95 is in the spout 916 of dead lever 912 and movable rod 913. In addition, a driving member for driving the movable rod 913 to move towards or away from the fixed rod 912 is arranged on the base 911, the driving member includes an air cylinder 914, a piston rod of the air cylinder 914 is fixed to the movable rod 913, and the adjustment of the distance between the fixed rod 912 and the movable rod 913 can be realized by driving the movable rod 913 to move through the air cylinder 914.

Need not to distinguish just turn-over like this when using turn-over mechanism 9, when meetting it and placing the direction not to the time, can order about the movable rod 913 and keep away from dead lever 912, then adjust second roller 93 and fourth roller 95 to the level after and adjust the incline direction as required, then order about the movable rod 913 again and resume the normal position, ensure that turn-over mechanism 9 can normal use like this and need not to distinguish the direction, it is more convenient and convenient to use.

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

Claims (10)

1. The utility model provides a flexo printing equipment, includes organism (1) and unwinding mechanism (2), printing mechanism (5) and winding mechanism (3) that set gradually, its characterized in that: be provided with between unwinding mechanism (2) and printing mechanism (5) and be used for coating mechanism (4) that the layer was moulded to the degradable, coating mechanism (4) are including rotating biography material roller (41), coating roller (42) and backing roll (43) of connecting on organism (1), biography material roller (41) and coating roller (42) butt, form the clearance that supplies the paper tape to pass through between coating roller (42) and backing roll (43), be provided with drying mechanism (6) between coating mechanism (4) and printing mechanism (5).

2. The flexo printing apparatus according to claim 1, wherein: drying mechanism (6) include box (61) and infrared heating pipe (62), infrared heating pipe (62) set up in box (61) and are located the paper tape coating and have the one side of the layer is moulded to the degradable.

3. The flexo printing apparatus according to claim 2, wherein: organism (1) is provided with drive mechanism corresponding drying mechanism (6) department, drive mechanism includes first carry over pinch rolls (71), second carry over pinch rolls (72) and third carry over pinch rolls (73) that set gradually along direction of delivery, first carry over pinch rolls (71) are located between second carry over pinch rolls (72) and third carry over pinch rolls (73) on the direction of height, third carry over pinch rolls (73) are located organism (1) bottom.

4. The flexo printing apparatus according to claim 3, wherein: the traction mechanism is arranged inside the box body (61).

5. The flexo printing apparatus according to claim 4, wherein: the inner wall of the box body (61) is provided with an air blowing nozzle (63), and the infrared heating pipe (62) is located between the paper tape and the air blowing nozzle (63).

6. The flexo printing apparatus according to claim 5, wherein: a first drying section is formed between the supporting roller (43) and the first drawing roller (71), a second drying section is formed between the first drawing roller (71) and the second drawing roller (72), and the air blowing nozzles (63) are arranged on the inner wall of the opposite box body (61).

7. The flexo printing apparatus according to claim 6, wherein: the lower part of box (61) is provided with baffle (67) and forms epicoele (65) and lower chamber (66), first dry section and second dry section all are located epicoele (65), be provided with on baffle (67) perforation (68), be provided with on box (61) the inner wall that lower chamber (66) is relative and supply through-groove (69) of paper tape, opening (64) that supply the paper tape business turn over are seted up to one side that box (61) corresponds epicoele (65).

8. The flexo printing apparatus according to claim 3, wherein: the traction mechanism comprises a fourth traction roller (81) and a fifth traction roller (82) which are sequentially arranged along the conveying direction, the fourth traction roller (81) is positioned above the fifth traction roller (82), and the height of the fourth traction roller (81) is higher than that of the coating roller (42).

9. The flexo printing apparatus according to claim 1, wherein: and a turnover mechanism (9) is arranged between the drying mechanism (6) and the printing mechanism (5).

10. The flexo printing apparatus according to claim 9, wherein: turn-over mechanism (9) are including support body (91) and set up first roll body (92), second roll body (93), third roll body (94) and fourth roll body (95) that the paper supply area walked around in proper order on support body (91), first roll body (92) are located support body (91) bottom, second roll body (93) are located support body (91) middle part and slope setting, third roll body (94) are located the side and the vertical setting of support body (91), fourth roll body (95) are located the middle part and the slope setting of support body (91), fourth roll body (95) are perpendicular with second roll body (93), and fifth roll body (96) are located support body (91) back one side and level setting.

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