A magnetic plate cylinder structure and an intermittent flexographic printing device comprising the same

Abstract

The application discloses a kind of magnetic plate stick structures, comprising: magnetic plate stick main body, the magnetic plate stick main body includes cylinder, both ends of the cylinder are respectively equipped with magnetic plate roller shoulder iron, two positioning pin holes are equipped on the cylinder.The application provides a kind of magnetic plate stick structure, the magnetic cylinder of magnetic plate stick main body has two positioning pin holes on top, installs positioning pin in two positioning pin holes, correspondingly, plate bottom plate cylinder also has two positioning pin slots, when we need to replace plate, just take down plate bottom plate cylinder, stick a set of plate bottom plate cylinder on plate sticking machine, directly placed in the positioning pin of magnetic cylinder by magnetism can, when needing to skew adjustment, adjust plate bottom plate cylinder by the relative position of positioning pin can, the advantage is greatly shorten prepress preparation time, reduce waste.Such magnetic cylinder plate sticking mode, perfect solution plate sticking is not straight, traditional way cannot be inclined.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing machine accessories, and more particularly to a magnetic plate roll structure and an intermittent flexographic printing device containing the same. BACKGROUND

[0002] At present, a rotary printing machine is a printing machine for printing on a roll product. In recent years, with the improvement of the printing quality requirements of printed matters such as self-adhesive cartoon stickers, anti-fake labels, prize scratch cards and packaging labels, higher requirements are put forward for printing equipment and printing processes.

[0003] A traditional full rotary flexographic printing machine adopts a replaceable cylinder type plate mounting mode. Different plate lengths need to be replaced with plate rollers of the same circumference. An intermittent flexographic printing machine does not need to replace the plate cylinder and directly mounts the plate. Paper is printed in a one-in-one-out manner. When the plate roller cannot be quickly removed, it is difficult to guarantee the flatness of the mounted plate on the machine. Therefore, it is necessary to propose a magnetic plate roll structure to at least partially solve the problems in the prior art. SUMMARY

[0004] A series of simplified concepts are introduced in the summary section, which will be further described in detail in the specific embodiment section. The summary section of the present application does not mean to attempt to limit the key features and necessary technical features of the claimed technical solution, nor to attempt to determine the protection scope of the claimed technical solution.

[0005] To at least partially solve the above problems, the present application provides a magnetic plate roll structure, comprising: the magnetic plate roll body comprises a magnetic cylinder, an printing plate bottom plate cylinder is arranged on the magnetic cylinder, a magnetic plate roll shoulder iron is arranged at both ends of the magnetic cylinder, and two positioning pin holes are arranged on the magnetic cylinder.

[0006] According to the magnetic plate roll structure of the embodiment of the present application, a transmission gear is arranged at one end of the magnetic cylinder.

[0007] According to the magnetic plate roll structure of the embodiment of the present application, the straight line where the two positioning pin holes are located is parallel to the axis of the magnetic plate roll body.

[0008] The present application also provides an intermittent flexographic printing device, which comprises the above-mentioned magnetic plate roll structure.

[0009] The intermittent flexographic printing device according to the embodiment of the present application further comprises a flexographic printing frame, a anilox roller and a impression roller, the anilox roller and the impression roller and a magnetic plate roller body are arranged in the flexographic printing frame, the anilox roller is arranged above the magnetic plate roller body through an anilox roller locking arm, the anilox roller locking arm is arranged on an anilox roller locking cylinder, and the impression roller is arranged below the magnetic plate roller body through a printing pressure adjusting arm.

[0010] The intermittent flexographic printing device according to the embodiment of the present application, both ends of the magnetic cylinder are provided with plate roller locking hook pieces, one side below the magnetic cylinder is provided with a magnetic plate roller locking cylinder, and the magnetic plate roller locking cylinder is provided with a magnetic plate roller clutch pressure cam through a connecting rod.

[0011] The intermittent flexographic printing device according to the embodiment of the present application, the impression roller comprises an inner stepped roller, an inner flexible supporting cylinder, an anilox pressure cylinder and an inner flexible supporting module, the inner stepped roller is arranged in the flexographic printing frame, the inner flexible supporting module is arranged on the inner stepped roller, the inner flexible supporting cylinder is arranged on the inner flexible supporting module, the anilox pressure cylinder is arranged on the inner flexible supporting cylinder, and an end of the anilox pressure cylinder is provided with a fixed cylinder ring.

[0012] The intermittent flexographic printing device according to the embodiment of the present application, the inner flexible supporting module comprises an inner supporting cylinder and a plurality of inner supporting mechanisms, the inner supporting cylinder is arranged on the inner stepped roller, and the plurality of inner supporting mechanisms are uniformly distributed on the inner supporting cylinder, the inner supporting mechanism comprises an inner supporting block, an inner supporting slide plate, an inner positioning plate and a V-shaped swing piece, the inner supporting block is arranged on the inner supporting cylinder, a first inner groove is arranged in the inner supporting block, the inner supporting slide plate is arranged in the first inner groove through a plurality of inner springs, the inner supporting slide plate is located on the outer side of the inner springs, the V-shaped swing piece is arranged on the inner supporting slide plate, the inner positioning plate is arranged on the inner wall of the inner flexible supporting cylinder, and the V-shaped swing piece is in sliding connection with the inner positioning plate.

[0013] The intermittent flexographic printing device according to the embodiment of the present application, the V-shaped swing piece comprises two side swing slide plates and a middle fixed rod, the middle fixed rod is arranged on the inner supporting slide plate, the two side swing slide plates are arranged on the middle fixed rod in an X shape, two side grooves are arranged on the inner wall of the inner positioning plate, the plate edge end of the side swing slide plate is in sliding connection with the side groove, and a transverse spring is further arranged between the two side swing slide plates.

[0014] The intermittent flexographic printing device according to the embodiment of the present application, the inner flexible supporting module further comprises a plurality of C-shaped elastic supporting plates and a plurality of C-shaped buckle plates, a circumferential groove is arranged on the inner supporting cylinder, the plurality of C-shaped elastic supporting plates and the plurality of C-shaped buckle plates are alternately and uniformly distributed in the circumferential groove, the inner supporting mechanism is arranged in the C-shaped elastic supporting plate, the plate edge end of the C-shaped elastic supporting plate is in sliding connection with the inner wall of the inner flexible supporting cylinder, and an inner supporting block is arranged in the C-shaped elastic supporting plate.

[0015] Compared with the prior art, the present application at least includes the following beneficial effects:

[0016] The present application provides a magnetic plate stick structure, the magnetic roller of the magnetic plate stick body has two positioning pin holes on the upper surface, and positioning pins are installed in the two positioning pin holes. Correspondingly, the plate cylinder also has two positioning pin grooves. When we need to replace the plate, we only need to take down the plate cylinder. A set of plate cylinder is pasted on the plate pasting machine, and is directly placed on the positioning pins of the magnetic roller through magnetism. When skew adjustment is needed, the plate cylinder can be adjusted through the relative position of the positioning pins. The advantage is that the prepress preparation time is greatly shortened, and waste is reduced. This magnetic roller plate pasting method perfectly solves the traditional method of plate pasting irregularity and inability to skew.

[0017] The magnetic plate stick structure and the intermittent flexographic printing device containing the structure of the present application, other advantages, objects and features of the present application will be embodied in part through the following description, and part will be understood by those skilled in the art through research and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification. They are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of the magnetic plate stick structure in the present application.

[0020] Figure 2 It is a structural schematic diagram of the plate cylinder in the present application.

[0021] Figure 3 It is a structural schematic diagram of the intermittent flexographic printing device in the present application.

[0022] Figure 4 It is a partial structural side view of the intermittent flexographic printing device in the present application.

[0023] Figure 5 It is a structural schematic diagram of the impression roller in the present application.

[0024] Figure 6 It is a structural schematic diagram of the inner flex support module in the present application.

[0025] Figure 7 It is an enlarged structural schematic diagram of part A in the present application. Figure 6

[0026] It is an internal structural schematic diagram of the impression roller in the present application. Figure 8

[0027] It is an internal structural schematic diagram of the impression roller in the present application. Figure 9 Figure 8 ​A magnified structural diagram of part B in the diagram.

[0028] Figure 10 This is a partial structural diagram of the impression roller in this invention.

[0029] Figure 11 For the present invention Figure 10 A magnified structural diagram of part C in the middle.

[0030] Figure 12 For the present invention Figure 11 A magnified structural diagram of part D in the middle. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0032] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0033] like Figures 1-2 As shown, the present invention provides a magnetic printing roller structure, comprising: a magnetic printing roller body 100, the magnetic printing roller body 100 including a magnetic roller 1, a printing plate base cylinder 10 mounted on the magnetic roller 1, and magnetic printing roller shoulder irons 102 respectively mounted at both ends of the magnetic roller 1. Two positioning pin holes 103 are also provided on the magnetic roller 1. Further, the straight line containing the two positioning pin holes 103 is parallel to the axis of the magnetic printing roller body 100.

[0034] With the above structural design, the magnetic roller 1 of the magnetic plate roller body 100 has two positioning pin holes 103, in which positioning pins (not shown) are installed. Correspondingly, the printing plate base cylinder 10 also has two positioning pin grooves 101. When we need to replace the printing plate, we only need to remove the printing plate base cylinder 10. After attaching a set of printing plate base cylinders 10 to the plate mounting machine, they can be directly placed at the positioning pins of the magnetic roller 1 by magnetism.

[0035] When skew adjustment is needed, the plate base cylinder 10 can be adjusted by using the relative position of the positioning pins. This significantly reduces pre-press preparation time and waste. This magnetic roller plate-mounting method perfectly solves the problems of misaligned plate mounting and the inability to tilt the plate, a problem inherent in traditional methods.

[0036] Furthermore, a transmission gear 4 is installed at one end of the magnetic roller 1. This allows the magnetic roller 1 to rotate easily after the transmission gear 4 rotates.

[0037] like Figures 3-4As shown, further, the present application also provides an intermittent flexographic printing device, which comprises the above-mentioned magnetic plate cylinder structure.

[0038] Further, the above-mentioned intermittent flexographic printing device 200 further comprises a flexographic printing frame 3, an anilox roller 6, and a printing roller 5, the anilox roller 6 and the printing roller 5 and the magnetic plate cylinder body 100 are arranged in the flexographic printing frame 3, the anilox roller 6 is arranged above the magnetic plate cylinder body 100 through an anilox roller locking arm 601, the anilox roller locking arm 601 is arranged on an anilox roller locking cylinder 602, and the printing roller 5 is arranged below the magnetic plate cylinder body 100 through a printing pressure adjusting arm 51.

[0039] Further, both ends of the magnetic plate cylinder 1 in the magnetic plate cylinder body 100 are provided with plate roller locking hook members 11, and one side of the magnetic plate cylinder 1 is provided below with a magnetic plate roller locking cylinder 12, and the magnetic plate roller locking cylinder 12 is connected with a magnetic plate roller clutch pressure cam 14 through a connecting rod 13.

[0040] Through the above-mentioned structure design, the intermittent flexographic printing device 200 adopts a three-point common circle pressure regulating mode, and the intermittent flexographic printing is realized through the magnetic plate cylinder plate sticking mode. The anilox roller, ink cartridge, and plate can be quickly replaced. Most importantly, the skew adjustment can be realized.

[0041] Further, the intermittent flexographic printing device 200 comprises a printing roller 6, a magnetic plate cylinder body 100, an anilox roller 6, and a flexographic printing mode of an ink transfer roller.

[0042] Further, the ink cartridge in the intermittent flexographic printing device 200 adopts an open structure, the anilox roller 6 adopts a quick mounting and dismounting mode, and the anilox roller 6 is pressed through the anilox roller locking arm 601 in cooperation with the cylinder.

[0043] Further, the magnetic plate cylinder body 100 is locked on the anilox roller locking arm 601 and the printing pressure adjusting arm 51 through the plate roller locking hook 104 in cooperation with the magnetic plate roller locking cylinder 12. The two locking arms adopt a three-point common circle pressure regulating mode.

[0044] Further, the magnetic plate cylinder body 100 and the anilox roller 6, and the magnetic plate cylinder body 100 and the printing roller 5 realize clutching and pressing in the working state and the non-working state through the magnetic plate roller clutch pressure cam 14 in cooperation with the magnetic plate roller locking cylinder 12.

[0045] Exemplary anilox roller

[0046] As Figures 5-12As shown, further, the specific structure of the anilox roller 6 is provided in some embodiments of the present application, which includes an inner stepped roller 61, an inner flexible support cylinder 62, an anilox cylinder 63, and an inner flexible support module 64. Here, the inner stepped roller 61 is installed in the flexographic printing frame 3, and the inner flexible support module 64 is installed on the inner stepped roller 61 to provide the anilox roller 6 with shock absorption function. Further, the inner flexible support cylinder 62 is installed on the inner flexible support module 64, and the anilox cylinder 63 is installed on the inner flexible support cylinder 62. Here, the fixed cylinder ring 631 is installed at the end of the anilox cylinder 63 to facilitate subsequent disassembly and maintenance of the anilox cylinder 63. The fixed cylinder 631 is pressed against the inner flexible support cylinder 62 through the anilox cylinder 63, so that the inner flexible support cylinder 62 and the inner flexible support module 64 are installed on the inner stepped roller 61. When the anilox cylinder 63 is subjected to pressure from the magnetic plate cylinder body 100 during printing, the anilox cylinder 63 exerts pressure on the inner flexible support cylinder 62, and the inner flexible support module 64 supports the inner flexible support cylinder 62 to provide flexible support for the anilox cylinder 63, making the anilox cylinder 63 rotate more smoothly. In this way, the anilox cylinder 63 cooperates with the plate bottom cylinder 10 on the magnetic plate cylinder body 100 to achieve better printing effect.

[0047] As shown in Figures 6-7 Further, the specific structure of the inner flexible support module 64 is provided in some embodiments of the present application, which includes an inner support cylinder 65 and a plurality of inner support mechanisms 66. Here, the inner support cylinder 65 is installed on the inner stepped roller 61. To facilitate installation of the inner support cylinder 65 on the inner stepped roller 61, a plurality of exhaust process holes 652 are formed in the inner support cylinder 65. In this way, during installation of the inner support cylinder 65 on the inner stepped roller 61, the internal air can be discharged through the exhaust process holes 652, thereby reducing the installation resistance.

[0048] As shown in Figures 8-10 Further, the specific structure of the inner flexible support cylinder 62 is provided in some embodiments of the present application, which includes a first butt joint cylinder body 621 and a second butt joint cylinder body 622. Here, a positioning long groove 623 is formed at the end of the first butt joint cylinder body 621, and a positioning convex strip 624 is installed at the end of the second butt joint cylinder body 622. In this way, the positioning convex strip 624 is inserted into the positioning long groove 623, facilitating the abovementioned first butt joint cylinder body 621 and second butt joint cylinder body 622 to wrap the abovementioned inner flexible support module 64, and facilitating subsequent disassembly.

[0049] Further, the inner wall of the inner flexible supporting cylinder 62 is provided with a plurality of first outward protruding teeth 625, and a plurality of second outward protruding teeth 652 are provided on the end of the inner supporting cylinder 65. The first and second connecting cylinder bodies 621 and 622 can be connected to the inner supporting cylinder 65 in a butt joint manner, so that the plurality of second outward protruding teeth 652 and the plurality of first outward protruding teeth 625 can be connected to each other in a plug-in manner, thereby achieving the effect that the inner flexible supporting cylinder 62 is mounted on the inner supporting cylinder 65, and facilitating subsequent disassembly.

[0050] Further, a plurality of inner supporting mechanisms 66 are uniformly mounted on the inner supporting cylinder 65, and the inner flexible supporting cylinder 62 is supported by the inner supporting mechanisms 66, thereby achieving the supporting and damping effect of the inner flexible supporting cylinder 62 by the entire inner flexible supporting module 64.

[0051] The inner supporting mechanism 66 includes an inner supporting block 661, an inner supporting slide plate 662, an inner positioning plate 663, and a V-shaped swing piece 664. Since the inner flexible supporting cylinder 62 will be slightly deformed under pressure, a certain space is provided between the plurality of inner supporting mechanisms 66 to reserve sufficient deformation allowance. Therefore, the inner positioning plate 663 is first mounted on the inner wall of the inner flexible supporting cylinder 62 in a close fit manner, the inner supporting block 661 is mounted on the inner supporting cylinder 65, the inner positioning plate 663 is located on the outer side of the inner supporting block 661, and the area of the inner supporting block 661 is greater than that of the inner supporting block 661. A first inner groove 665 is formed in the inner supporting block 661, and a plurality of inner springs 669 are mounted in the first inner groove 665 to provide uniform support for the inner supporting slide plate 662. The V-shaped swing piece 664 is mounted on the inner supporting slide plate 662, and the plate edge end of the V-shaped swing piece 664 is in sliding connection with the inner wall of the inner positioning plate 663. The V-shaped swing piece 664 provides internal support for the inner supporting slide plate 662, and the plurality of inner supporting slide plates 662 provide support for the inner flexible supporting cylinder 662. In this way, the V-shaped swing piece 664, the inner supporting slide plate 662, and the inner spring 669 form a "Y"-shaped damping component. When the meshing pressing cylinder 63 is subjected to pressure and the pressure is transmitted to the inner flexible supporting cylinder 62, the pressure can be decomposed to the V-shaped swing piece 664. Compared with the single spring in the prior art, the V-shaped swing piece 664 has better pressure bearing capacity and can bear larger pressure.

[0052] Exemplary V-shaped swing piece

[0053] As Figures 10-12As shown, further, the specific structure of the V-shaped swing piece 664 is provided in some embodiments of the present application, the V-shaped swing piece 664 of the structure includes two side swing slides 6641, a middle fixed rod 6642, wherein the middle fixed rod 6642 can be rotatably installed in the second inner groove 6621 of the inner support slide 662 through the inner core rod 6643, and the two side swing slides 6641 are installed in a V-shaped manner on the middle fixed rod 6642, and here, in order to decompose the pressure, two side grooves 666 are formed on the inner wall of the inner positioning plate 663, and the edge end of the side swing slide 6641 is in sliding connection with the side groove 666, further, the end of the inner positioning plate 663 is provided with a side guide hole 667, the side guide hole 667 is in communication with the side groove 666, and the side swing slide 6641 is provided with a side guide rod 668, the side guide rod 668 is arranged in the side strip-shaped hole 667, so that when the two side swing slides 6641 are opened to the side groove 666 under the pressure, the side guide rod 668 plays a guiding role in the side strip-shaped hole 667, so that the process of the two side swing slides 6641 moving away from each other to decompose the pressure is more stable.

[0054] Further, a transverse spring 667 is also installed between the two side swing slides 6641, so that the two side swing slides 6641 can be pulled back to the state of approaching each other through the transverse spring 667 in the subsequent process, to facilitate the subsequent separation of the pressure again.

[0055] Further, the inner flexible support module 64 also includes a plurality of C-shaped elastic support plates 641 and a plurality of C-shaped buckle plates 642, and here, in order to install the plurality of C-shaped elastic support plates 641 and the plurality of C-shaped buckle plates 642, a circumferential groove 651 is also formed on the inner support cylinder 65, and the plurality of C-shaped elastic support plates 641 and the plurality of C-shaped buckle plates 642 are distributed in the circumferential groove 651 in a staggered manner, and the inner support mechanism 66 is installed in the C-shaped elastic support plate 641, and the edge end of the C-shaped elastic support plate 641 is in sliding connection with the inner wall of the inner flexible support cylinder 62, specifically, the inner support block 661 is installed in the C-shaped elastic support plate 641, the C-shaped elastic support plate 641 plays a surrounding role to prevent the inner support mechanism 66 from being dispersed under stress, and the C-shaped buckle plate 642 provides support for the two C-shaped elastic support plates 641 to prevent the C-shaped elastic support plate 641 from being deformed too much under stress.

[0056] In the description of the application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0057] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0058] Although the embodiments of the present application have been disclosed as above, it is not limited only to the applications listed in the specification and embodiments, and it can be fully applied to various fields suitable for the present application, and additional modifications can be easily realized by those skilled in the art, and therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. An intermittent flexographic printing device, characterized by The application relates to a magnetic plate roller structure. The magnetic plate roller structure comprises a magnetic plate roller body (100), the magnetic plate roller body (100) comprises a magnetic roller (1), a plate base cylinder (10) is arranged on the magnetic roller (1), magnetic plate roller shoulder irons (102) are arranged at two ends of the magnetic roller (1), and two positioning pin holes (103) are arranged on the magnetic roller (1). The intermittent flexographic printing device (200) further comprises an anilox roller (6) and a flexographic printing frame (3). The anilox roller (6) comprises an inner stepped roller (61), an inner flexible supporting cylinder (62), an anilox pressing cylinder (63) and an inner flexible supporting module (64), the inner stepped roller (61) is arranged in the flexographic printing frame (3), the inner flexible supporting module (64) is arranged on the inner stepped roller (61), the inner flexible supporting cylinder (62) is arranged on the inner flexible supporting module (64), the anilox pressing cylinder (63) is arranged on the inner flexible supporting cylinder (62), and the end of the anilox pressing cylinder (63) is provided with a fixed cylinder ring (631). The inner flexible supporting module (64) comprises an inner supporting cylinder (65) and a plurality of inner supporting mechanisms (66), the inner supporting cylinder (65) is arranged on the inner stepped roller (61), the plurality of inner supporting mechanisms (66) are uniformly distributed on the inner supporting cylinder (65), the inner supporting mechanism (66) comprises an inner supporting block (661), an inner supporting sliding plate (662), an inner positioning plate (663) and a V-shaped swing piece (664), the inner supporting block (661) is arranged on the inner supporting cylinder (65), a first inner groove (665) is arranged in the inner supporting block (661), the inner supporting sliding plate (662) is arranged in the first inner groove (665) through a plurality of inner springs (669), the inner supporting sliding plate (662) is located on the outer side of the inner spring (669), the V-shaped swing piece (664) is arranged on the inner supporting sliding plate (662), the inner positioning plate (663) is arranged on the inner wall of the inner flexible supporting cylinder (62), and the V-shaped swing piece (664) is in sliding connection with the inner positioning plate (663).

2. An intermittent flexographic printing apparatus according to claim 1, wherein, One end of the magnetic roller (1) is provided with a transmission gear (2).

3. An intermittent flexographic printing apparatus according to claim 1, wherein The straight line where the two positioning pin holes (103) are located is parallel to the axis of the magnetic plate roller body (100).

4. An intermittent flexographic printing apparatus according to claim 1, wherein The intermittent flexographic printing device (200) further comprises a printing roller (5), the anilox roller (6), the printing roller (5) and the magnetic plate roller body (100) are arranged in the flexographic printing frame (3), the anilox roller (6) is arranged above the magnetic plate roller body (100) through an anilox roller locking arm (601), the anilox roller locking arm (601) is arranged on an anilox roller locking cylinder (602), and the printing roller (5) is arranged below the magnetic plate roller body (100) through a printing pressure adjusting arm (51).

5. An intermittent flexographic printing apparatus according to claim 4, wherein, Plate roller locking hook pieces (11) are arranged at two ends of the magnetic roller (1), a magnetic plate roller locking cylinder (12) is arranged below one side of the magnetic roller (1), and the magnetic plate roller locking cylinder (12) is provided with a magnetic plate roller clutch pressing cam (14) through a connecting rod (13).

6. An intermittent flexographic printing apparatus as claimed in claim 1, wherein, The V-shaped swing piece (664) comprises two side swing slides (6641) and a middle fixed rod (6642), the middle fixed rod (6642) is arranged on the inner support slide (662), the two side swing slides (6641) are arranged on the middle fixed rod (6642) in an X-shaped mode, two side grooves (666) are arranged on the inner wall of the inner positioning plate (663), the plate edge end of the side swing slide (6641) is slidably connected with the side groove (666), and a transverse spring (667) is further arranged between the two side swing slides (6641).

7. An intermittent flexographic printing apparatus as claimed in claim 1, wherein The inner flexible support module (64) further comprises a plurality of C-shaped elastic support plates (641) and a plurality of C-shaped buckle plates (642), the inner support cylinder (65) is provided with a circumferential groove (651), the plurality of C-shaped elastic support plates (641) and the plurality of C-shaped buckle plates (642) are distributed in the circumferential groove (651) in a staggered mode, the inner support mechanism (66) is arranged in the C-shaped elastic support plate (641), the plate edge end of the C-shaped elastic support plate (641) is slidably connected with the inner wall of the inner flexible support cylinder (62), and the inner support mechanism (66) is arranged in the C-shaped elastic support plate (641).

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