CN219133530U

CN219133530U - Single-sheet paper satellite type rotary flexography device

Info

Publication number: CN219133530U
Application number: CN202320030368.7U
Authority: CN
Inventors: 陈芳绚子; 陈鸿奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-06-06
Anticipated expiration: 2033-01-06

Abstract

A sheet-fed satellite-type rotary flexographic printing device. The utility model aims to solve the problems that the existing similar printing machine is only suitable for web printing operation and is not suitable for sheet printing operation. The technical key points are as follows: the printing unit, the printing drying unit, the paper feeding unit and the paper discharging unit are arranged around the central impression cylinder to be matched with the central impression cylinder, the central impression cylinder is one, the printing drying unit is matched with the central impression cylinder, the printing drying unit is matched with the printing drying unit, the paper feeding unit comprises a single paper feeding device and a paper conveying roller, the paper discharging unit comprises a paper collecting roller and a single paper collecting device, the paper conveying roller and the paper collecting roller are also provided with gripper grooves, gripper mechanisms are also arranged in the gripper grooves, the central impression cylinder is provided with a cylinder face cooling structure, and interlayer areas containing cooling water are respectively arranged on the inner sides of parts, except the gripper grooves, of the cylinder face of the central impression cylinder.

Description

Single-sheet paper satellite type rotary flexography device

Technical Field

The utility model relates to a single-paper flexographic printing device, in particular to a single-paper satellite-type rotary flexographic printing device.

Background

Flexography is a unique printing form different from letterpress printing, lithographic printing, intaglio printing and screen printing, and has the advantages of wide range of printing materials and printing products, short ink path, simpler equipment, more convenient operation and maintenance, low plate making cost and high cost performance, and the biggest advantage of using water-based ink printing with water-based resin or alcohol-soluble resin as a binder for printing, can realize safe and environment-friendly printing without toxicity and pollution, and is a printing species popularized and popularized in China at present.

The satellite type rotary press, also called rotary web press, is structurally characterized in that multicolor printing units share a large central impression cylinder, printing materials are tightly attached to the central impression cylinder under the action of friction force, the elongation deformation of the printing materials is overcome, the relative sliding is avoided, the impression force is kept stable, and therefore the overprinting quality and the overprinting precision can be well ensured; and because the printing adjustment time is short and the material loss is less, the method is suitable for printing materials with fixed patterns, large batch, high precision requirement and larger elasticity of printed products. However, the satellite rotary press currently available is only suitable for printing with a web of printing material, but not for printing with a sheet of paper, and is limited in terms of print range and print processing.

In view of the fact that all the satellite type rotary flexo printing machines in the world are web printing machines, the defect that the satellite type rotary flexo printing machines are only suitable for web printing operations and are not suitable for sheet printing operations is overcome, the applicant firstly proposes the concept of a sheet satellite type flexo printing machine in 2006, and applies for the printing and conveying device of the satellite type flexo printing machine of China patent No. 200610123570.5 in the prior art, the printing and conveying device comprises an impression cylinder installed on a machine frame of the printing machine, a plurality of groups of plate units and conveying mechanisms, wherein the plate rollers of the plate units are in printing fit with the impression cylinder, the conveying mechanisms are composed of a guide roller and a clamping belt sleeved on the guide roller, the impression cylinder and the guide roller are in running fit on the machine frame of the printing machine, and the clamping belt is in pressing fit with the impression cylinder, and the printing and conveying mechanism is characterized in that: the circular arc surface of the impression cylinder is provided with one or more grooves distributed along the axial direction, each groove is internally provided with a clamping jaw shaft in a rotating fit manner, a plurality of clamping jaws are fixed on the clamping jaw shaft, the jaw ends of the clamping jaws are matched with the opening edges of the grooves, the driving ends of the clamping jaw shafts extend out of one side of the impression cylinder, the notch of each groove is provided with one or more clamping band bridge plates which are arranged along the circumferential direction and are used for supporting clamping bands, and the top surface of each clamping band bridge plate is a circular arc surface which takes the same radian with the circular arc surface of the impression cylinder. However, this patent does not solve the problem of print drying (inter-color drying) between the plate units, the problem of how to cool the cylinder surface of the impression cylinder provided with the jaw grooves, and the problem of the engagement of the paper feeding and collecting structure with the single paper changing nip of the impression cylinder, and therefore does not solve the problem of the printing operation of the satellite type flexographic printing machine using single paper.

Disclosure of Invention

The utility model aims to provide an improved satellite-type rotary flexography device for single paper, which can overcome the defects of the prior art and is only suitable for printing operation of roll paper and is not suitable for printing operation of single paper.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a sheet-fed satellite formula rotary flexography printing device, includes the frame and installs central impression cylinder, printing unit, paper feeding unit and the paper discharging unit in the frame, printing unit, printing drying unit, paper feeding unit and paper discharging unit are arranged respectively around the central impression cylinder and work respectively with it cooperates, wherein central impression cylinder is one, printing unit all is including corresponding complex flexography roller, anilox roller and ink tank, be equipped with the gripper groove on the central impression cylinder all be equipped with gripper mechanism in the gripper groove, characterized by: the printing device comprises a frame, a central impression cylinder, a printing drying unit, a paper feeding unit, a paper delivering unit, a paper feeding unit, a paper delivering unit and a paper delivering unit, wherein the printing drying unit is arranged on the frame and is matched with the central impression cylinder in a working mode, the printing unit and the printing drying unit are matched with the printing drying unit in a working mode, the paper feeding unit comprises a single paper feeding device and a single paper delivery device which are correspondingly matched, the paper delivering unit comprises a paper receiving roller and a single paper receiving device which are correspondingly matched, gripper grooves are respectively arranged on the paper delivering roller and the paper receiving roller, gripper mechanisms are respectively arranged in the gripper grooves of the paper delivering roller and the paper receiving roller, a cylinder surface cooling structure is arranged on the central impression cylinder, an interlayer region for containing cooling water is respectively arranged on the inner side of the part of the central impression cylinder except the gripper grooves, the interlayer region is provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively connected with a water inlet channel and a water outlet channel on a cylinder shaft of the central impression cylinder, and a front and a back sequence of the working of each unit and the printing unit and the drying unit.

The printing unit and the printing drying unit in the technical scheme can be more than two respectively; the order of the working cooperation of the units and the central impression cylinder may be the paper feeding unit, the first printing drying unit, the second printing drying unit, … …, and the paper discharging unit.

According to the technical scheme, the single paper post-drying unit can be arranged on the single paper conveying path on the single paper collecting device so as to finish final drying of the finished single paper printing product.

According to the technical scheme, the gripper mechanism has the effect of clamping and fixing paper heads of single paper on the central impression cylinder, the paper conveying roller or the paper collecting roller, so that the position of the single paper does not move when the single paper rotates along with the central impression cylinder, the paper conveying roller or the paper collecting roller, and a gripper pad is generally arranged on a notch of the gripper groove and is matched with the gripper mechanism in a paper clamping mode.

According to the technical scheme, more than two gripping grooves can be formed in the central impression cylinder; the diameters of the transfer roller and the flexographic printing roller can be half of the diameter of the central impression cylinder, and when the central impression cylinder rotates for each circle, the transfer roller and the flexographic printing roller rotate for two circles respectively to be matched with the central impression cylinder; the diameter of the transfer roller and the diameter of the flexographic printing roller can be one third of the diameter of the central impression cylinder, and when the central impression cylinder rotates once, the transfer roller and the flexographic printing roller rotate three times respectively to be matched with the transfer roller and the flexographic printing roller; and so on.

According to the technical scheme, the diameter of the paper collecting roller can be doubled compared with that of the paper conveying roller, and the diameter of the paper collecting roller is increased so that the finished printed matter cannot be damaged due to excessive bending.

According to the technical scheme, two gripping grooves are formed in the central impression cylinder, and two interlayer areas are formed in the central impression cylinder; three gripping grooves are arranged on the central impression cylinder, and three interlayer areas on the central impression cylinder are arranged; and so on.

According to the technical scheme, more than two interlayer areas are provided, all interlayer areas are respectively provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively connected with a water inlet channel and a water outlet channel on a drum shaft of the central impression drum through a water inlet pipe and a water outlet pipe.

According to the technical scheme, the ink tank can adopt a closed ink box with double scrapers, and can also adopt a combination device of an ink fountain, the scrapers and the ink transfer roller.

The printing and drying unit in the technical scheme can adopt a hot air heating mode, an infrared heating mode, an electromagnetic heating mode, a resistance heating mode, a UV irradiation curing mode and the like.

The beneficial effects of the utility model are as follows: firstly, the printing and drying units are arranged on the frame and are matched with the central impression cylinder in a working way, and the printing units and the printing and drying units are matched with each other, so that the printing and drying problem of each printing unit is solved; secondly, as the paper feeding unit comprises a single paper feeding device and a paper conveying roller which are correspondingly matched, the paper discharging unit comprises a paper collecting roller and a single paper collecting device which are correspondingly matched, the paper conveying roller and the paper collecting roller are respectively provided with a gripper groove, and gripper mechanisms are respectively arranged in the gripper grooves of the paper conveying roller and the gripper grooves of the paper collecting roller, so that the problem that after a printing material is changed into single paper, single paper is changed and connected between the paper feeding unit, the paper discharging unit and the central impression cylinder is solved; and thirdly, as the cylinder surface cooling structure is arranged on the central impression cylinder, the inner side areas of the parts, except the gripping grooves, of the cylinder surface are respectively provided with an interlayer area for containing cooling water, the interlayer areas are respectively provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively connected with a water inlet channel and a water outlet channel on a cylinder shaft of the central impression cylinder through a water inlet pipe and a water outlet pipe, so that the problem of cylinder surface cooling on the central impression cylinder provided with the gripping grooves is ideally solved.

The utility model is further described below with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of the present utility model.

Fig. 2 is a schematic structural view of a second embodiment of the present utility model.

Fig. 3 is a schematic structural view of a third embodiment of the present utility model.

Fig. 4 is a schematic structural view of a fourth embodiment of the present utility model.

Fig. 5 is a schematic structural view of a fifth embodiment of the present utility model.

In the figure: 1. a central impression cylinder; 2. a printing unit (first printing unit); 3. a paper feeding unit; 4. a paper output unit; 5. a flexographic printing roller; 6. an anilox roller; 7. an ink tank; 8. gripping grooves; 9. a gripper mechanism; 10. a print drying unit (first print drying unit); 11. a sheet feeding device; 12. a transfer roller; 13. a paper collecting roller; 14. a sheet feeding device; 15 and 16, gripper slots; 17 and 18, gripper mechanisms; 19. a cylindrical surface; 20. an interlayer region; 21. a water inlet pipe; 22. a water outlet pipe; 23. a drum shaft; 24. a second printing unit; 25. a second print drying unit; 26. a sheet-fed transport path; 27. a sheet-fed post-drying unit; 28. gripping grooves; 29. an interlayer region; 30. a central impression cylinder; 31. a first printing unit; 32. a second printing unit; 33. a third printing unit; 34. a fourth printing unit; 35. a first print drying unit; 36. a second print drying unit; 37. a third print drying unit; 38. a fourth print drying unit; 39. a paper feeding unit; 40. a paper output unit; 41. a central impression cylinder; 42. a first printing unit; 43. a second printing unit; 44. a third printing unit; 45. a fourth printing unit; 46. a fifth printing unit; 47. a first print drying unit; 48. a second print drying unit; 49. a third print drying unit; 50. a fourth print drying unit; 51. a fifth print drying unit; 52. a paper feeding unit; 53. a paper output unit; 54. 55 and 56, gripper slots; 57. a transfer roller; 58. a flexographic printing roller; 59. 60 and 61, interlayer region; 62. a water inlet pipe; 63. a water outlet pipe; 64. a drum shaft; 65 center impression cylinder; 66. a first printing unit; 67. a second printing unit; 68. a third printing unit; 69. a fourth printing unit; 70. a fifth brush unit; 71. a sixth printing unit; 72. a first print drying unit; 73. a second print drying unit; 74. a third print drying unit; 75. a fourth print drying unit; 76. a fifth print drying unit; 77. a sixth print drying unit; 78. a paper feeding unit; 79. a paper output unit; 80. 81, 82 and 83, gripper slots; 84. a transfer roller; 85. a flexographic printing roller; 86. 87, 88 and 89, interlayer region; 90. a water inlet pipe; 91. a water outlet pipe; 92. a drum shaft; 93. a central impression cylinder; 94. a first printing unit; 95. a second printing unit; 96. a third printing unit; 97. a fourth printing unit; 98. a fifth printing unit; 99. a sixth printing unit; 100. a seventh printing unit; 101. an eighth printing unit; 102. a first print drying unit; 103. a second print drying unit; 104. a third print drying unit; 105. a fourth print drying unit; 106. a fifth print drying unit; 107. a sixth print drying unit; 108. a seventh print drying unit; 109. an eighth print drying unit; 112. 113, 114, 115 and 116, gripper slots; 117. a transfer roller; 118. a flexographic printing roller; 119. 120, 121, 122 and 123, interlayer region; 124. a water inlet pipe; 125. a water outlet pipe; 126. a roller shaft.

Detailed Description

Referring to fig. 1, the single sheet satellite type rotary flexographic printing device comprises a frame (not shown), and a central impression cylinder 1, a printing unit 2, a paper feeding unit 3 and a paper discharging unit 4 which are arranged on the frame, wherein the printing unit 2, the paper feeding unit 3 and the paper discharging unit 4 are respectively arranged around the central impression cylinder 1 and respectively work and cooperate with the central impression cylinder 1, the printing unit 2 comprises a flexographic printing roller 5, an anilox roller 6 and an ink tank 7 which are correspondingly matched, the central impression cylinder 1 is provided with a gripper groove 8, and gripper mechanisms 9 are respectively arranged in the gripper grooves 8, and the single sheet satellite type rotary flexographic printing device is characterized in that: also installed on the frame and arranged around the central impression cylinder 1 and working in cooperation with it is a printing drying unit 10, the printing unit 2 works in cooperation with the printing drying unit 10, the paper feeding unit 3 comprises a single paper feeding device 11 and a paper delivery roller 12 which are correspondingly matched, the paper discharging unit 4 comprises a paper receiving roller 13 and a single paper receiving device 14 which are correspondingly matched, the paper delivery roller 12 and the paper receiving roller 13 are also respectively provided with gripping grooves 15 and 16, gripping mechanisms 17 and 18 are respectively arranged in the gripping grooves 15 and 16 of the paper delivery roller 12 and the paper receiving roller 13, the central impression cylinder 1 is provided with a cylinder surface cooling structure, the cylinder surface cooling structure is that an interlayer region 20 containing cooling water is arranged on the inner side of a cylinder surface 19 of the central impression cylinder 1 except the gripping groove 8, the interlayer region 20 is respectively provided with a water inlet and a water outlet, the water inlet and outlet are respectively connected with a water inlet and outlet channel on a cylinder shaft 23 of the central cylinder 1, and the printing unit is arranged in the order of the printing unit 2, after the central impression cylinder 1 is matched with the printing unit 2.

In addition, the printing units are provided with two, namely a first printing unit 2 and a second printing unit 24, and the printing drying units are also provided with two, namely a first printing drying unit 10 and a second printing drying unit 25, wherein the first printing unit 2 is matched with the first printing drying unit 10, and the second printing unit 24 is matched with the second printing drying unit 25; the working cooperation of the units with the central impression cylinder is performed in the order of the paper feeding unit 3, the first printing unit 2, the first printing drying unit 10, the second printing unit 24, the second printing drying unit 25 and the paper discharging unit 4.

The sheet conveying path 26 of the sheet collecting device 4 is provided with a sheet post-drying unit 27 to finish final drying of the printed matter.

The gripper mechanisms 9, 17 or 18 are used for clamping and fixing paper heads of the single paper on the central impression cylinder 1, the transfer roller 12 or the receiving roller 13 respectively, so that the single paper does not move when rotating along with the central impression cylinder 1, the transfer roller 12 or the receiving roller 13, and the slot openings of the gripper grooves 8, 15 and 16 are generally provided with gripper pads which are matched with the gripper mechanisms 9, 17 and 18 respectively.

The central impression cylinder 1 is provided with two gripping grooves 8 and 28, the diameters of the transfer roller 12 and the flexographic printing roller 5 are half of the diameter of the central impression cylinder 1, and when the central impression cylinder 1 rotates for one circle, the transfer roller 12 and the flexographic printing roller 5 rotate for two circles respectively to be matched with the transfer roller and the flexographic printing roller.

The diameter of the paper receiving roller 13 is twice as large as that of the paper conveying roller 12, and the paper receiving roller diameter is increased so that the finished printed matter is not damaged by excessive bending.

The interlayer area on the central impression cylinder 1 is two 20 and 29, the two interlayer areas 20 and 29 are respectively provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively connected with a water inlet channel and a water outlet channel on a cylinder shaft 23 of the central impression cylinder 1 through a water inlet pipe 21, a water outlet pipe 22 and the like.

The ink tanks 7 and the like are all ink boxes with double scrapers.

In operation, referring to fig. 1, a sheet of paper is output from the sheet-feed device 11; then the single paper head is clamped by a gripper mechanism 17 on the paper transfer roller 12 and rotates along with the paper transfer roller 12 to reach a paper feeding matching point with the central impression cylinder 1, the single paper is released by the gripper mechanism 17, and the single paper head is clamped by a gripper mechanism 9 on the central impression cylinder 1; then the single sheet rotates with the central impression cylinder 1 to reach the first printing unit 2, printing a first color on the single sheet; then the single paper rotates along with the central impression cylinder 1 to reach the first printing and drying unit 10, and the first color on the single paper is dried; the sheet then rotates with the central impression cylinder 1 to reach the second printing unit 24, printing a second color on the sheet; the single sheet then rotates with the central impression cylinder 1 to the second print drying unit 25, drying the second color on the single sheet; then the single paper rotates along with the central impression cylinder 1 to reach a paper collecting matching point of the paper collecting roller 13, the gripper mechanism 9 of the central impression cylinder 1 releases the single paper head, the gripper mechanism 18 of the paper collecting roller 13 clamps the single paper head, the paper collecting roller 13 rotates to send the single paper to the single paper conveying path 26 of the single paper collecting device 14, and the gripper mechanism 18 of the paper collecting roller 13 releases the single paper; the sheet then travels along the sheet transport path 26 past the sheet post-drying unit 27 where it is finally dried to a finished print product and then stacked on the delivery table of the sheet delivery device 14.

Referring to fig. 2, the present satellite web-fed rotary flexographic printing device is different from the satellite web-fed rotary flexographic printing device of fig. 1 in that there are four printing units, namely, a first printing unit 31, a second printing unit 32, a third printing unit 33, a fourth printing unit 34, and four printing drying units, namely, a first printing drying unit 35, a second printing drying unit 36, a third printing drying unit 37, and a fourth printing drying unit 38, installed on the frame and disposed around the central impression cylinder 30 to be operatively engaged therewith, wherein the first printing unit 31 is engaged with the first printing drying unit 35, the second printing unit 32 is engaged with the second printing drying unit 36, the second printing unit 33 is engaged with the second printing drying unit 37, and the second printing unit 34 is engaged with the second printing drying unit 38; the above units are sequentially arranged in the order of paper feed unit 39, first printing unit 31, first printing drying unit 35, second printing unit 32, second printing drying unit 36, third printing unit 33, third printing drying unit 37, fourth printing unit 34, fourth printing drying unit 38, and paper discharge unit 40 in cooperation with the operation of the central impression cylinder 30. Other structures and functions are the same as those of the sheet-fed satellite rotary flexographic printing device of fig. 1, except that they are the same.

Referring to fig. 3, the present satellite web-fed rotary flexographic printing device is different from the satellite web-fed rotary flexographic printing device of fig. 1 in that there are five printing units mounted on the frame and disposed around the central impression cylinder 41 to be operatively engaged therewith, namely, a first printing unit 42, a second printing unit 43, a third printing unit 44, a fourth printing unit 45 and a fifth printing unit 46, and there are five printing drying units, namely, a first printing drying unit 47, a second printing drying unit 48, a third printing drying unit 49, a fourth printing drying unit 50 and a fifth printing drying unit 51, wherein the first printing unit 42 is operatively engaged with the first printing drying unit 47, the second printing unit 43 is operatively engaged with the second printing drying unit 48, the third printing unit 44 is operatively engaged with the third printing drying unit 49, the fourth printing unit 45 is operatively engaged with the fourth printing drying unit 50, and the fifth printing unit 46 is operatively engaged with the fifth printing drying unit 51; the above units are sequentially arranged in the order of paper feed unit 52, first printing unit 42, first printing drying unit 47, second printing unit 43, second printing drying unit 48, third printing unit 44, third printing drying unit 49, fourth printing unit 45, fourth printing drying unit 50, fifth printing unit 46, fifth printing drying unit 51, and paper discharge unit 53, in cooperation with the operation of the central impression cylinder.

The central impression cylinder 41 is provided with three

gripper grooves

54, 55 and 56, the diameters of the transfer roller 57 and the flexographic printing roller 58 are one third of the diameter of the central impression cylinder 41, and the transfer roller 57 and the flexographic printing roller 58 are respectively rotated three times for cooperation with each revolution of the central impression cylinder 41.

The central impression cylinder 41 is provided with three

interlayer areas

59, 60 and 61, and the three

interlayer areas

59, 60 and 61 are respectively provided with a water inlet and a water outlet which are respectively connected with a water inlet channel and a water outlet channel on a cylinder shaft 64 of the central impression cylinder 41 through a water inlet pipe 62, a water outlet pipe 63 and the like.

Other structures and functions of the sheet-fed satellite-type rotary flexographic printing device of fig. 3 are the same as those of the sheet-fed satellite-type rotary flexographic printing device of fig. 1, except for the above.

Referring to fig. 4, the present satellite web-fed rotary flexographic printing device is different from the satellite web-fed rotary flexographic printing device of fig. 1 in that six printing units mounted on the frame and disposed around the central impression cylinder 65 are operatively engaged therewith, namely, a first printing unit 66, a second printing unit 67, a third printing unit 68, a fourth printing unit 69, a fifth printing unit 70 and a sixth printing unit 71, and six printing drying units are also provided, namely, a first printing drying unit 72, a second printing drying unit 73, a third printing drying unit 74, a fourth printing drying unit 75, a fifth printing drying unit 76 and a sixth printing drying unit 77, wherein the first printing unit 66 is operatively engaged with the first printing drying unit 72, the second printing unit 67 is operatively engaged with the second printing drying unit 73, the third printing unit 68 is operatively engaged with the third printing drying unit 74, the fourth printing unit 69 is operatively engaged with the fourth printing drying unit 75, the fifth printing unit 70 is operatively engaged with the fifth printing drying unit 76 and the sixth printing unit 77; the above units are sequentially arranged in the order of paper feed unit 78, first printing unit 66, first printing drying unit 72, second printing unit 67, second printing drying unit 73, third printing unit 68, third printing drying unit 74, fourth printing unit 69, fourth printing drying unit 75, fifth printing unit 70, fifth printing drying unit 76, sixth printing unit 71, sixth printing drying unit 77, and paper discharge unit 79 in the work of the central impression cylinder 65.

Four

gripper grooves

80, 81, 82 and 83 are formed in the central impression cylinder 65, the diameters of the transfer roller 84 and the flexographic printing roller 85 are each one fourth of the diameter of the central impression cylinder 65, and each transfer roller 84 and the flexographic printing roller 85 are respectively engaged with the transfer roller 84 and the flexographic printing roller 85 in four turns each time the central impression cylinder 65 rotates.

The central impression cylinder 65 is provided with four

interlayer areas

86, 87, 88 and 89, and the four

interlayer areas

86, 87, 88 and 89 are respectively provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively connected with a water inlet channel and a water outlet channel on a cylinder shaft 92 of the central impression cylinder 65 through a water inlet pipe, a water outlet pipe 90, a water outlet pipe 91 and the like.

Other structures and functions of the sheet-fed satellite-type rotary flexographic printing device of fig. 4 are the same as those of the sheet-fed satellite-type rotary flexographic printing device of fig. 1, except for the above.

Referring to fig. 5, the present satellite web-fed rotary flexographic printing device is different from the satellite web-fed rotary flexographic printing device of fig. 1 in that eight printing units mounted on the frame and arranged around the central impression cylinder 93 in operative engagement therewith, namely, a first printing unit 94, a second printing unit 95, a third printing unit 96, a fourth printing unit 97, a fifth printing unit 98, a sixth printing unit 99, a seventh printing unit 100 and an eighth printing unit 101, are also eight printing units, namely, a first printing drying unit 102, a second printing drying unit 103, a third printing drying unit 104, a fourth printing drying unit 105, a fifth printing drying unit 106, a sixth printing drying unit 107, a seventh printing drying unit 108 and an eighth printing drying unit 109, wherein the first printing unit 94 is in operative engagement with the first printing drying unit 102, the second printing unit 95 is in operative engagement with the second printing drying unit 103, the third printing unit 96 is in operative engagement with the third printing drying unit 104, the fourth printing unit 97 is in operative engagement with the fifth printing unit 108, and the fifth printing unit 106 is in operative engagement with the fifth printing unit 108, the fifth printing unit 106 is in operative engagement with the fifth printing unit 109; the above units are sequentially arranged in the order of paper feed unit 110, first printing unit 94, first printing drying unit 102, second printing unit 95, second printing drying unit 103, third printing unit 96, third printing drying unit 104, fourth printing unit 97, fourth printing drying unit 105, fifth printing unit 98, fifth printing drying unit 106, sixth printing unit 99, sixth printing drying unit 107, seventh printing unit 100, seventh printing drying unit 108, eighth printing unit 101, eighth printing drying unit 109, and paper discharge unit 111 in order of operation of the central impression cylinder.

Five

gripper grooves

112, 113, 114, 115 and 116 are formed on the central impression cylinder 93, the diameters of the transfer roller 117 and the flexographic printing roller 118 are each one fifth of the diameter of the central impression cylinder 93, and each transfer roller 117 and each flexographic printing roller 118 are respectively rotated five turns to be matched with each turn of the central impression cylinder 93.

The central impression cylinder 93 is provided with five

interlayer regions

119, 120, 121, 122 and 123, and the five

interlayer regions

119, 120, 121, 122 and 123 are respectively provided with water inlet and water outlet, and the water inlet and water outlet are respectively connected with water inlet and outlet channels on a cylinder shaft 126 of the central impression cylinder 93 through water inlet and

outlet pipes

124 and 125 and the like.

Other structures and functions of the sheet-fed satellite-type rotary flexographic printing device of fig. 5 are the same as those of the sheet-fed satellite-type rotary flexographic printing device of fig. 1, except for the above.

Claims

1. The utility model provides a sheet-fed satellite formula rotary flexography printing device, includes the frame and installs central impression cylinder, printing unit, paper feeding unit and the paper discharging unit in the frame, printing unit, printing drying unit, paper feeding unit and paper discharging unit are arranged respectively around the central impression cylinder and work respectively with it cooperates, wherein central impression cylinder is one, printing unit all is including corresponding complex flexography roller, anilox roller and ink tank, be equipped with the gripper groove on the central impression cylinder all be equipped with gripper mechanism in the gripper groove, characterized by: the printing device comprises a frame, a central impression cylinder, a printing drying unit, a paper feeding unit, a paper delivering unit, a paper feeding unit, a paper delivering unit and a paper delivering unit, wherein the printing drying unit is arranged on the frame and is matched with the central impression cylinder in a working mode, the printing unit and the printing drying unit are matched with the printing drying unit in a working mode, the paper feeding unit comprises a single paper feeding device and a single paper delivery device which are correspondingly matched, the paper delivering unit comprises a paper receiving roller and a single paper receiving device which are correspondingly matched, gripper grooves are respectively arranged on the paper delivering roller and the paper receiving roller, gripper mechanisms are respectively arranged in the gripper grooves of the paper delivering roller and the paper receiving roller, a cylinder surface cooling structure is arranged on the central impression cylinder, an interlayer region for containing cooling water is respectively arranged on the inner side of the part of the central impression cylinder except the gripper grooves, the interlayer region is provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively connected with a water inlet channel and a water outlet channel on a cylinder shaft of the central impression cylinder, and a front and a back sequence of the working of each unit and the printing unit and the drying unit.

2. The satellite-type rotary flexography printing device for single sheets according to claim 1, wherein a post-drying unit for single sheets is arranged on a single sheet conveying path of the single sheet collecting device so as to finish final drying of printed matters by single sheets.

3. The sheet-fed satellite-type rotary flexographic printing device according to claim 1 or 2, characterized in that there are more than two gripper grooves on the central impression cylinder; the diameters of the transfer roller and the flexographic printing roller are half of the diameter of the central impression cylinder, and when the central impression cylinder rotates once, the transfer roller and the flexographic printing roller rotate twice respectively and are matched with each other; the three gripping grooves are arranged on the central impression cylinder, the diameters of the transfer roller and the flexographic printing roller are one third of the diameter of the central impression cylinder, and when the central impression cylinder rotates once, the transfer roller and the flexographic printing roller rotate three times respectively and are matched with each other.

4. The sheet-fed satellite-type rotary flexographic printing device according to claim 1 or 2, wherein the diameter of the paper receiving roller is doubled compared with the diameter of the paper transfer roller so that the finished printed matter is not damaged by excessive bending.

5. A sheet-fed satellite-type rotary flexographic printing apparatus according to claim 3, wherein said central impression cylinder is provided with two of said gripper grooves, and said sandwich region of said central impression cylinder is provided with two of said sandwich regions; three gripping grooves are arranged on the central impression cylinder, and three interlayer areas are arranged on the central impression cylinder.

6. The sheet-fed satellite web-fed rotary flexographic printing device according to claim 5, wherein the number of the sandwich areas is more than two, and all the sandwich areas are respectively provided with water inlet and water outlet ports which are respectively connected with water inlet and outlet channels on the cylinder shaft of the central impression cylinder through water inlet and outlet pipes.

7. The sheet-fed satellite web flexo printing apparatus according to claim 1, wherein the ink tank is a closed cartridge with double doctor blades, or a combination of ink fountain, doctor blade and transfer roller.