CN115816984A

CN115816984A - Satellite type rotary flexographic printing device for single paper

Info

Publication number: CN115816984A
Application number: CN202310017025.1A
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: 2023-03-21

Abstract

A satellite-type rotary flexographic printing unit for sheet-fed printing is disclosed. The invention aims to solve the problem that the existing similar printing machine is only suitable for web printing operation and is not suitable for sheet-fed printing operation. The technical points are as follows: including frame, center impression cylinder, printing unit, the unit of form advancing and play paper unit, printing drying unit, the unit of form advancing and play paper unit arrange around center impression cylinder with it cooperation, center impression cylinder is one, the characteristic is to arrange around center impression cylinder with it cooperation printing drying unit in addition, printing unit and printing drying unit cooperation, the unit of form advancing includes sheet-fed paper delivery device and passes paper roll, it includes paper collecting roll and sheet-fed paper collecting device to go out the paper unit, pass paper roll with it holds the tooth groove also to be equipped with on the paper collecting roll, it holds tooth inslot and also is equipped with the tooth mechanism in holding, be provided with bobbin face cooling structure on the center impression cylinder, promptly on the bobbin face of center impression cylinder except that the inboard of tooth groove with the outer part is provided with the interlayer region that holds the cooling water respectively.

Description

Satellite type rotary flexographic printing device for single paper

Technical Field

The invention relates to a flexographic printing device for single paper, in particular to a satellite type rotary flexographic printing device for the single paper.

Background

The flexography is a unique printing form different from relief printing, lithographic printing, gravure printing and screen printing, and has the advantages of wide range of applicable printing materials and printing products, short ink path, simpler equipment, more convenient operation and maintenance, low plate making cost and high cost performance.

The satellite type rotary printing machine, also called rotary web printing machine, the structure is that the multicolor printing units share a large central impression cylinder, the printing material is closely attached to the central impression cylinder under the action of friction force, the extension deformation of the printing material is overcome, the relative sliding is avoided, and the impression force is kept stable, so 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 printing material is suitable for printing materials with fixed patterns, large batch, high precision requirement and larger elasticity of printed products. However, the conventional satellite rotary printing press is not suitable for sheet-fed printing operations but only for printing operations in which the printing material is a web, and is limited in the range of printed products and the processing of printed products.

In view of the defects that all satellite rotary flexographic printing machines in the world are web printing machines and are only suitable for printing operation of web and not suitable for printing operation of single paper, the applicant firstly proposes the concept of a single-paper satellite flexographic printing device in 2006, and previously applies for a printing conveying device of a satellite type flexographic printing machine of Chinese patent No. 200610123570.5, which comprises an impression large cylinder arranged on a printing machine frame, a plurality of groups of printing plate units and a conveying mechanism arranged around the periphery of the impression large cylinder, wherein a printing plate roller of each printing plate unit is matched with the impression large cylinder in a printing way, the conveying mechanism is composed of a transmission roller and an entrainment belt sleeved on the transmission roller, the impression large cylinder and the transmission roller are matched with the printing machine frame in a rotating way, and the entrainment belt is matched with the impression large cylinder in a pressing way, and the satellite type rotary flexographic printing machine is characterized in that: the circular arc surface of impression cylinder has the recess that one or more distribute along the axis direction, equal normal running fit has a clamping jaw axle of arranging along the axis direction in every recess, the epaxial a plurality of clamping jaws that are fixed with of clamping jaw, the claw end of clamping jaw cooperates with the mouth edge of recess, the drive end of clamping jaw axle stretches out impression cylinder one side, all be equipped with the bridge plate of smuggleing secretly that is used for supporting smuggleing secretly that one or more arrange along the circumferencial direction on the notch of every recess, the top surface of smuggleing secretly the bridge plate is the circular arc surface of getting the same radian with impression cylinder circular arc surface. However, this patent does not solve the problem of drying of printing (drying between colors) 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 between the sheet feeding and collecting structure and the sheet exchange nip of the impression cylinder, and therefore does not solve the problem of realizing the printing operation using the sheet in the satellite flexographic printing machine.

Disclosure of Invention

In order to solve the problem that the conventional satellite type rotary flexographic printing machine can only be suitable for printing operation of web and is not suitable for printing operation of single paper, the invention aims to provide an improved single paper satellite type rotary flexographic printing device which can overcome the defects of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a sheet-fed satellite formula rotates flexographic printing device, includes the frame and installs center impression cylinder, printing unit, the unit of form advancing and the unit of going out paper in the frame, printing unit, printing drying unit, the unit of form advancing and the unit of going out paper are arranged respectively center impression cylinder is around and respectively with its work cooperation, wherein center impression cylinder is one, printing unit all includes corresponding complex flexographic printing roller, reticulation roller and china ink groove, be equipped with on the center impression cylinder the gripper groove all be equipped with gripper mechanism, characterized by in that in the gripper groove: install in the frame and arrange around the central impression cylinder with it work complex printing drying unit in addition, printing unit with printing drying unit cooperation work, the unit of form advancing is including corresponding complex sheet-fed paper delivery device and paper delivery roller, the play paper unit is including corresponding complex receiving roll and sheet-fed paper delivery device, the paper delivery roller with also be equipped with respectively on the receiving roll and hold the tooth groove, the tooth inslot that passes paper roll and receiving roll also is equipped with respectively holds tooth mechanism, be provided with tube face cooling structure on the central impression cylinder, tube face cooling structure is in on the tube face of central impression cylinder except that the inboard of holding the outside in tooth groove is provided with the intermediate layer district that holds the cooling water respectively, the intermediate layer district is equipped with into, the delivery port, advance, the delivery port is respectively through advancing, going out water piping connection advance, go out water passageway on the drum shaft of central impression cylinder, the order around each unit with the work complex of central impression cylinder is the unit of form advancing, printing unit, printing drying unit, play paper unit.

The printing unit and the printing and drying unit can be respectively provided with more than two units in the technical scheme; the front and back sequence of the working matching of each unit and the central impression cylinder can be the paper feeding unit, the first printing and drying unit, the second printing and drying unit, … … and the paper discharging unit.

According to the technical scheme, the single paper post-drying unit can be arranged on a single paper conveying path on the single paper delivery device so as to finish the final drying of finished products printed on the single paper.

Above-mentioned technical scheme gripper mechanism, its effect is to press from both sides the paper head of sheet-fed tight fix on central impression cylinder, transfer roller or receive the paper roll, guarantee that sheet-fed does not produce when rotating along with central impression cylinder, transfer roller or receive the paper roll and remove in its position, it should be provided with the bite-block and make the cooperation of pressing from both sides paper with gripper mechanism generally on the notch of holding the tooth groove.

In the technical scheme, more than two gripper slots on the central impression cylinder can be arranged; the central impression cylinder is provided with two gripper grooves, the diameters of the paper 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 one circle, the paper transfer roller and the flexographic printing roller respectively rotate for two circles to be matched with the central impression cylinder; the central impression cylinder is provided with three gripper grooves, the diameters of the paper transfer roller and the flexographic printing roller can be one third of the diameter of the central impression cylinder, and when the central impression cylinder rotates for each circle, the paper transfer roller and the flexographic printing roller respectively rotate for three circles to be matched with the central impression cylinder; and so on.

According to the technical scheme, the diameter of the paper collecting roller can be twice as large as that of the paper conveying roller, and the diameter of the paper collecting roller is increased so that a finished printed product cannot be excessively bent and damaged.

In the technical scheme, the central impression cylinder is provided with two gripper grooves, and the interlayer area on the central impression cylinder is two; the central impression cylinder is provided with three gripper slots, and the number of interlayer regions on the central impression cylinder is three; and so on.

According to the technical scheme, the interlayer areas are more than two, water inlets and water outlets are respectively arranged on all the interlayer areas, and the water inlets and the water outlets are respectively connected with water inlets and water outlets on a roller shaft of the central impression roller through water inlet pipes and water outlet pipes.

According to the technical scheme, the ink tank can adopt a closed ink box with double scrapers, and also can adopt a combined device of an ink duct, the scrapers and an 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 invention are: firstly, because the printing drying unit is arranged on the frame and is matched with the central impression cylinder in a working way around the central impression cylinder, and the printing drying unit is matched with the printing drying unit in a working way, the problem of printing drying of each printing unit is solved; the paper feeding unit comprises a single-sheet paper feeding device and a paper delivery roller which are correspondingly matched, the paper discharging unit comprises a paper receiving roller and a single-sheet paper receiving device which are correspondingly matched, a gripping groove is also respectively arranged on the paper delivery roller and the paper receiving roller, and a gripping mechanism is also respectively arranged in the gripping grooves of the paper delivery roller and the paper receiving roller, so that the problem of single-sheet paper clamp changing connection between the paper feeding unit and the paper discharging unit and the central impression cylinder after the printing material is changed into single sheets is solved; and thirdly, as the central impression cylinder is provided with a cylinder surface cooling structure, the cylinder surface cooling structure is that the inner side areas of the cylinder surface except the outer part of the gripper groove 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 the cylinder shaft of the central impression cylinder through a water inlet pipe and a water outlet pipe, thereby ideally solving the problem of cooling the cylinder surface on the central impression cylinder provided with the gripper groove.

The invention is further described below with reference to the following figures and examples.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a third embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a fifth embodiment of the present invention.

In the figure: 1. a central impression cylinder; 2. a printing unit (first printing unit); 3. a paper feeding unit; 4. a paper discharge unit; 5. a flexographic printing roll; 6. an anilox roll; 7. an ink tank; 8. a gripper groove; 9. a gripper mechanism; 10. a print drying unit (first print drying unit); 11. a sheet-feeding device; 12. a paper transfer roller; 13. a paper collecting roller; 14. a sheet delivery device; 15 and 16, gripper grooves; 17 and 18, gripper mechanism; 19. barrel 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 printing and drying unit; 26. a sheet-feeding path; 27. a sheet post-drying unit; 28. a gripper groove; 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 printing and drying unit; 36. a second printing and drying unit; 37. a third printing and drying unit; 38. a fourth printing and drying unit; 39. a paper feeding unit; 40. a paper discharge 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 printing and drying unit; 48. a second printing and drying unit; 49. a third printing and drying unit; 50. a fourth printing and drying unit; 51. a fifth printing and drying unit; 52. a paper feeding unit; 53. a paper discharge unit; 54. 55 and 56, gripper grooves; 57. a paper transfer roller; 58. a flexographic printing roll; 59. 60 and 61, interlayer regions; 62. a water inlet pipe; 63. a water outlet pipe; 64. a drum shaft; 65 a central 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 printing and drying unit; 73. a second printing and drying unit; 74. a third printing and drying unit; 75. a fourth printing and drying unit; 76. a fifth printing and drying unit; 77. a sixth printing and drying unit; 78. a paper feeding unit; 79. a paper discharge unit; 80. 81, 82 and 83, gripper slot; 84. a paper transfer roller; 85. a flexographic printing roll; 86. 87, 88 and 89, interlayer regions; 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 printing and drying unit; 103. a second printing and drying unit; 104. a third printing and drying unit; 105. a fourth printing and drying unit; 106. a fifth printing and drying unit; 107. a sixth printing and drying unit; 108. a seventh printing and drying unit; 109. an eighth printing and drying unit; 112. 113, 114, 115, and 116, gripper grooves; 117. a paper transfer roller; 118. a flexographic printing roll; 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, this sheet-fed satellite formula rotation flexographic printing device, include the frame (not shown) and install center impression cylinder 1, printing unit 2, the unit of form advancing 3 and the unit of delivering paper 4 in the frame, printing unit 2, the unit of form advancing 3 and the unit of delivering paper 4 are arranged respectively center impression cylinder 1 is around and respectively with its work cooperation, wherein center impression cylinder 1 is one, printing unit 2 is including corresponding complex flexographic printing roller 5, anilox roller 6 and china ink groove 7, be equipped with in the center impression cylinder 1 the gripper mechanism 9, characterized by all are equipped with in the gripper groove 8: install in the frame and arrange around central impression cylinder 1 with it work complex also printing drying unit 10, printing unit 2 with printing drying unit 10 cooperation work, form advancing unit 3 including corresponding complex sheet-fed paper delivery device 11 and delivery roller 12, it receives paper unit 4 including corresponding complex receiving roll 13 and sheet-fed paper delivery device 14 to go out, delivery roller 12 with receiving roll 13 is last also to be equipped with respectively and holds tooth groove 15 and 16, also be equipped with respectively in the tooth groove 15 and 16 of delivery roller 12 and receiving roll 13 and hold tooth mechanism 17 and 18, be provided with tube face cooling structure on central impression cylinder 1, tube face cooling structure is in on the tube face 19 of central impression cylinder 1 except that hold the inboard of part such as tooth groove 8 is provided with the intermediate layer district 20 that holds the cooling water, intermediate layer district 20 is equipped with into, the delivery port, advance, delivery port connect through into, outlet pipe 21 and 22 respectively advance on the axle 23 of central impression cylinder 1, water outlet channel, each unit with the central impression cylinder 1 around the printing unit 2, printing drying unit 10 are the cooperation order for printing drying unit 10, delivery unit.

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

A single sheet post-drying unit 27 is arranged on the single sheet conveying path 26 on the single sheet delivery device 4 to finish the final drying of the printed matter of the single sheet.

The

gripper mechanisms

9, 17 or 18 are used for respectively clamping and fixing the paper heads of the single sheets on the central impression cylinder 1, the paper delivery roller 12 or the paper delivery roller 13, so that the positions of the single sheets do not move when the single sheets rotate along with the central impression cylinder 1, the paper delivery roller 12 or the paper delivery roller 13, and generally tooth pads are arranged on the notches of the

gripper grooves

8, 15 and 16 and respectively perform clamping matching with the

gripper mechanisms

9, 17 and 18.

Be equipped with two on the central impression cylinder 1 and hold in the hands tooth groove 8 and 28, pass paper roll 12 with the diameter of flexographic printing roller 5 is all got the half of the diameter of central impression cylinder 1 works as 1 every turn of circle of central impression cylinder, pass paper roll 12 with flexographic printing roller 5 is equallyd divide and is changeed two rings respectively rather than the cooperation.

The diameter of the take-up roller 13 is twice as large as the diameter of the transfer roller 12, and the take-up roller diameter is increased so that the finished printed product is not excessively bent and damaged.

The interlayer regions on the central impression cylinder 1 are two 20 and 29, the two

interlayer regions

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 tank 7 and the like are all ink cartridges with double scrapers.

In operation, referring to FIG. 1, sheets are fed from the sheet feeder 11; then the paper head of the single sheet is clamped by a gripper mechanism 17 on the paper conveying roller 12 and rotates along with the paper conveying roller 12 to reach the paper conveying matching point with the central impression cylinder 1, the gripper mechanism 17 releases the single sheet, and the paper head of the single sheet is clamped by a gripper mechanism 9 on the central impression cylinder 1; then the single paper rotates along with the central impression cylinder 1 to reach the first printing unit 2, and the first color is printed on the single paper; then the single paper rotates along with the central impression cylinder 1 to reach a first printing and drying unit 10, and the first color on the single paper is dried; then the single paper rotates along with the central impression cylinder 1 to reach the second printing unit 24, and the second color is printed on the single paper; then the single paper rotates along with the central impression cylinder 1 to reach a second printing and drying unit 25, and the second color on the single paper is dried; then the single paper rotates along with the central impression cylinder 1 to reach the delivery matching point with the delivery roller 13, the gripper mechanism 9 of the central impression cylinder 1 releases the paper head of the single paper, the gripper mechanism 18 of the delivery roller 13 clamps the paper head of the single paper, the delivery roller 13 rotates to deliver the single paper to the single paper conveying path 26 of the single paper delivery device 14, and the gripper mechanism 18 of the delivery roller 13 releases the single paper; the sheets then travel along the sheet transport path 26 past the sheet post-drying unit 27 to effect final drying of the individual sheets to complete the printed product, which is then stacked onto the delivery deck of the sheet delivery device 14.

Referring to fig. 2, the present single-sheet satellite rotary flexographic printing device differs from the single-sheet satellite rotary flexographic printing device of fig. 1 in that the printing units mounted on said frame and disposed around said central impression cylinder 30 in operative cooperation therewith are four, namely a first printing unit 31, a second printing unit 32, a third printing unit 33, a fourth printing unit 34, and the printing dryer units also have four, namely a first printing dryer unit 35, a second printing dryer unit 36, a third printing dryer unit 37, a fourth printing dryer unit 38, wherein said first printing unit 31 is in operative cooperation with said first printing dryer unit 35, said second printing unit 32 is in operative cooperation with said second printing dryer unit 36, said second printing unit 33 is in operative cooperation with said second printing dryer unit 37, and said second printing unit 34 is in operative cooperation with said second printing dryer unit 38; the units are a paper feeding unit 39, a first printing unit 31, a first printing and drying unit 35, a second printing unit 32, a second printing and drying unit 36, a third printing unit 33, a third printing and drying unit 37, a fourth printing unit 34, a fourth printing and drying unit 38, and a paper discharging unit 40 in sequence before and after the units are matched with the central impression cylinder 30. Except for this, the other structures and functions are the same as those of the sheet-fed satellite-type rotary flexographic printing device of fig. 1.

Referring to fig. 3, the present single-sheet satellite rotary flexographic printing device differs from the single-sheet satellite rotary flexographic printing device of fig. 1 in that there are five printing units mounted on said frame and disposed around said central impression cylinder 41 in operative cooperation 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, which also have five printing 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 said first printing unit 42 is in operative cooperation with said first printing drying unit 47, said second printing unit 43 is in operative cooperation with said second printing drying unit 48, said third printing unit 44 is in operative cooperation with said third printing drying unit 49, said fourth printing unit 45 is in operative cooperation with said fourth printing drying unit 50, and said fifth printing unit 46 is in operative cooperation with said fifth printing drying unit 51; the units are a paper feeding unit 52, a first printing unit 42, a first printing and drying unit 47, a second printing unit 43, a second printing and drying unit 48, a third printing unit 44, a third printing and drying unit 49, a fourth printing unit 45, a fourth printing and drying unit 50, a fifth printing unit 46, a fifth printing and drying unit 51 and a paper discharging unit 53 in sequence in front and back of the working cooperation of the central impression cylinder.

Be equipped with three hold in the

palm tooth groove

54, 55 and 56 on the impression cylinder 41 in center, pass paper roller 57 with the diameter of flexographic printing roller 58 is all got the third of the diameter of impression cylinder 41 in center works as center impression cylinder 41 rotates a round every, pass paper roller 57 with flexographic printing roller 58 equally divide and do not change three circles rather than the cooperation.

The central impression cylinder 41 is provided with three

interlayer regions

59, 60 and 61, the three

interlayer regions

59, 60 and 61 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 64 of the central impression cylinder 41 through a water inlet pipe 62, a water outlet pipe 63 and the like.

Except for this, the 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.

Referring to fig. 4, the present satellite-fed rotary flexographic printing device differs from the satellite-fed rotary flexographic printing device of fig. 1 in that the printing units mounted on said frame and disposed around said central impression cylinder 65 in operative cooperation therewith are six, 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 the printing drying units also have six, 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 said first printing unit 66 is in operative cooperation with said first printing drying unit 72, said second printing unit 67 is in operative cooperation with said second printing drying unit 73, said third printing unit 68 is in operative cooperation with said third printing drying unit 74, said fourth printing unit 69 is in operative cooperation with said fourth printing drying unit 75, said fifth printing unit 70 is in operative cooperation with said fifth printing drying unit 76 and said sixth printing unit 71; the front and rear of the units in cooperation with the central impression cylinder 65 are a paper feeding unit 78, a first printing unit 66, a first printing and drying unit 72, a second printing unit 67, a second printing and drying unit 73, a third printing unit 68, a third printing and drying unit 74, a fourth printing unit 69, a fourth printing and drying unit 75, a fifth printing unit 70, a fifth printing and drying unit 76, a sixth printing unit 71, a sixth printing and drying unit 77, and a paper discharging unit 79 in this order.

Be equipped with four

gripper grooves

80, 81, 82 and 83 on the central impression cylinder 65, pass paper roll 84 with the diameter of flexographic printing roller 85 is all got the quarter of the diameter of central impression cylinder 65 works as central impression cylinder 65 rotates the round every turn, pass paper roll 84 with flexographic printing roller 85 equally divide and do not rotate four rings rather than the cooperation.

The central impression cylinder 65 is provided with four

interlayer regions

86, 87, 88 and 89, the four

interlayer regions

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 90, a water outlet pipe 91 and the like.

Except for this, the other structures and functions of the sheet satellite type rotary flexographic printing device of fig. 4 are the same as those of the sheet satellite type rotary flexographic printing device of fig. 1.

Referring to fig. 5, the present satellite-fed rotary flexographic printing device differs from the satellite-fed rotary flexographic printing device of fig. 1 in that eight printing units, 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 mounted on said frame and operatively associated therewith and arranged around said central impression cylinder 93, and eight, namely a first printing unit 102, a second printing unit 103, a third printing unit 104, a fourth printing unit 105, a fifth printing unit 106, a sixth printing unit 107, a seventh printing unit 108 and an eighth printing unit 109, wherein said first printing unit 94 is operatively associated with said first printing unit 102, said second printing unit 95 is operatively associated with said second printing unit 103, said third printing unit 96 is operatively associated with said third printing unit 104, said fourth printing unit 97 is operatively associated with said fifth printing unit 106, said seventh printing unit 108 is operatively associated with said fourth printing unit 101, said seventh printing unit 108 is operatively associated with said fourth printing unit 106, said fifth printing unit 108 and said eighth printing unit 101; the front and back of the units matched with the central impression cylinder are a paper feeding unit 110, a first printing unit 94, a first printing and drying unit 102, a second printing unit 95, a second printing and drying unit 103, a third printing unit 96, a third printing and drying unit 104, a fourth printing unit 97, a fourth printing and drying unit 105, a fifth printing unit 98, a fifth printing and drying unit 106, a sixth printing unit 99, a sixth printing and drying unit 107, a seventh printing unit 100, a seventh printing and drying unit 108, an eighth printing unit 101, an eighth printing and drying unit 109 and a paper discharging unit 111 in sequence.

Be equipped with five hold in the

palm tooth grooves

112, 113, 114, 115 and 116 on the impression cylinder 93 in center, pass paper roll 117 with the diameter of flexographic printing roller 118 is all got one fifth of the diameter of impression cylinder 93 in center works as center impression cylinder 93 rotates the round every turn, pass paper roll 117 with flexographic printing roller 118 equally divide and do not change five rings rather than the cooperation.

The central impression cylinder 93 is provided with five

interlayer regions

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

interlayer regions

119, 120, 121, 122 and 123 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 126 of the central impression cylinder 93 through a water inlet pipe 124, a water outlet pipe 125 and the like.

Except for this, the 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.

Claims

1. The utility model provides a sheet-fed satellite formula rotates flexographic printing device, includes the frame and installs center impression cylinder, printing unit, the unit of form advancing and the unit of play paper in the frame, printing unit, printing drying unit, the unit of form advancing and the unit of play paper are arranged respectively center impression cylinder is around and respectively with its work cooperation, wherein center impression cylinder is one, printing unit all includes corresponding complex flexographic printing roller, reticulation roller and china ink groove, be equipped with on the center impression cylinder the gripper groove all be equipped with gripper mechanism, characterized by in that in the gripper groove: install in the frame and arrange around the central impression cylinder with it work complex printing drying unit in addition, printing unit with printing drying unit cooperation work, the unit of form advancing is including corresponding complex sheet-fed paper delivery device and paper delivery roller, the play paper unit is including corresponding complex receiving roll and sheet-fed paper delivery device, the paper delivery roller with also be equipped with respectively on the receiving roll and hold the tooth groove, the tooth inslot that passes paper roll and receiving roll also is equipped with respectively holds tooth mechanism, be provided with tube face cooling structure on the central impression cylinder, tube face cooling structure is in on the tube face of central impression cylinder except that the inboard of holding the outside in tooth groove is provided with the intermediate layer district that holds the cooling water respectively, the intermediate layer district is equipped with into, the delivery port, advance, the delivery port is respectively through advancing, going out water piping connection advance, go out water passageway on the drum shaft of central impression cylinder, the order around each unit with the work complex of central impression cylinder is the unit of form advancing, printing unit, printing drying unit, play paper unit.

2. The satellite-fed rotary flexographic printing unit according to claim 1, wherein there are two or more of said printing units and print drying units, and said paper feed unit, first printing unit, first print drying unit, second printing unit, second print drying unit, … …, and said paper discharge unit are arranged in the forward and backward order of the working cooperation of each unit and said central impression cylinder.

3. A satellite-fed rotary flexographic printing unit as in claim 1 or 2 wherein a sheet post-drying unit is provided in the sheet transport path of said sheet delivery to complete final drying of the printed sheet.

4. A sheet-fed satellite-type rotary flexographic printing device as claimed in claim 1 or 2, wherein there are more than two gripper grooves on said central impression cylinder; the central impression cylinder is provided with two gripper slots, the diameters of the paper transfer roller and the flexographic printing roller are respectively half of the diameter of the central impression cylinder, and when the central impression cylinder rotates for one circle, the paper transfer roller and the flexographic printing roller respectively rotate for two circles and are matched with each other; the central impression cylinder is provided with three gripper grooves, the diameters of the paper 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 for each circle, the paper transfer roller and the flexographic printing roller respectively rotate for three circles and are matched with each other; and so on.

5. A satellite-fed rotary flexographic printing unit according to claim 1 or 2, characterized in that the diameter of said take-up roll is doubled with respect to the diameter of said transfer roll, so that the finished printed product is not excessively bent and damaged.

6. A satellite-fed rotary flexographic printing device as in claim 4, wherein said central impression cylinder is provided with two of said gripper slots, and wherein said nip areas on said central impression cylinder are two; the central impression cylinder is provided with three gripper grooves, and the number of interlayer regions on the central impression cylinder is three; and so on.

7. A satellite-type rotary flexographic printing unit as in claim 6, wherein said sandwich areas are two or more, and all sandwich areas are provided with water inlet and outlet ports, respectively, said water inlet and outlet ports being connected to water inlet and outlet channels on the drum shaft of said central impression drum through water inlet and outlet pipes, respectively.

8. A satellite-fed rotary flexographic printing unit as in claim 1, wherein said ink fountain is a closed cartridge with dual doctor blades or a combination of ink fountain, doctor blade and ink transfer roller.