A flexographic printing press

Abstract

The present application relates to a kind of flexographic printing machine, including fixed frame, fixed frame is provided with impression roller, first support is symmetrically fixed on the side of fixed frame, second support is provided on first support, first support and second support are slidingly connected, the side of second support close to fixed frame is equipped with plate assembly and anilox assembly, anilox assembly is slidingly connected with second support, the side away from fixed frame is provided with adjusting assembly and automatic release component, adjusting assembly and automatic release component are installed on second support, first support is screw-connected with first lead screw, anilox assembly is connected with second lead screw, adjusting assembly is rotated by driving at least one side first lead screw or at least one side second lead screw, and the distance between at least one side impression roller and plate assembly or the distance between at least one side plate assembly and anilox assembly is adjusted;The automatic release component is used to realize the synchronous movement of plate assembly and anilox assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of flexographic printing machine. BACKGROUND

[0002] The flexographic printing machine currently on the market includes a support, a plate roller rotatably disposed on the support, an inking mechanism disposed on the support, an anilox roller rotatably disposed on the support, and a supporting mechanism disposed on the support. The inking mechanism is used to provide ink for the anilox roller. The supporting mechanism is used to support the plate roller and drive the plate roller to approach or move away from the anilox roller. However, there are some defects: the distance between the rollers cannot be adjusted, resulting in excessive or insufficient printing pressure and low printing quality; or a complex automatic device is added, the structure is complex, the stripping distance cannot be strictly controlled, resulting in friction between the rollers or between the rollers and the printed matter, causing wear between the rollers and affecting the service life of the machine.

[0003] The application number is CN202122527639.3, and the name is a flexographic printing machine capable of controlling printing quality. The printing machine includes a workbench and a first mounting plate with a rectangular slot. The inner wall of the rectangular slot is slidably mounted with a guide block. The outer wall of the guide block is fixedly mounted with a connecting plate. The inner wall of the connecting plate is provided with a bearing. The inner wall of the bearing is fixedly mounted with a printing roller. The upper surface of the connecting plate is fixedly mounted with a mounting block. The inner wall of the mounting block is rotatably mounted with a first connecting rod. The inner wall of the first connecting rod is threadedly connected with a connecting bolt.

[0004] For the related technology in the above, the inventors believe that the printing machine lacks an automatic stripping device. During printing, the impression roller, the plate roller, and the anilox roller are pressed against each other. During stripping, the impression roller, the plate roller, and the anilox roller need to be separated. Currently, manual adjustment is used, which cannot strictly control the stripping distance, affects the stability of the impression force, and results in unstable printing quality and low efficiency. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a flexographic printing machine. The printing machine can adjust the distance between the rollers through the adjusting assembly, adapt to printing of printed matter of different thicknesses, and the adjusting device can realize manual stripping. The automatic stripping device can realize automatic stripping, which is convenient and fast. It avoids friction between the printed matter and the rollers, improves printing quality, and improves production efficiency.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A flexographic printing machine, comprising a fixed frame, wherein the fixed frame is provided with a printing roller, the fixed frame is symmetrically provided with a first support on the side, the first support is provided with a second support, the first support and the second support are slidingly connected, the second support is provided with a printing plate assembly and a screen assembly on the side close to the fixed frame, the screen assembly is slidingly connected with the second support, the second support is provided with an adjusting assembly and an automatic release device on the side away from the fixed frame, the adjusting assembly and the automatic release device are installed on the second support, the first support is screwedly connected with a first lead screw, the screen assembly is connected with a second lead screw, the adjusting assembly is used for adjusting the distance between the printing roller and the printing plate assembly on at least one side or adjusting the distance between the printing plate assembly and the screen assembly on at least one side by driving the first lead screw on at least one side or the second lead screw on at least one side to rotate, and the automatic release device is used for realizing synchronous movement of the printing plate assembly and the screen assembly.

[0007] Further, the second support comprises a horizontal plate, the horizontal plate is provided with a second sliding rail, the printing plate assembly is fixedly installed on the horizontal plate, the screen assembly is installed on the second sliding rail through a second sliding block, the horizontal plate is provided with a first vertical plate on the end face away from the fixed frame, the first vertical plate is connected with a second vertical plate through a fixed rod, a plurality of gear boxes are installed on the first vertical plate, the gear boxes are movably connected to the first vertical plate through guide rods, and one side of the automatic release device is fixedly installed on the end face of the gear box facing the second vertical plate.

[0008] Further, the first support is provided with a first sliding rail, the bottom of the horizontal plate is provided with a first sliding block, and the horizontal plate is installed on the first sliding rail through the first sliding block.

[0009] Further, the first lead screw and the second lead screw penetrate through the first vertical plate at one end close to the first vertical plate and are installed with first gears, and the first gears are installed in the corresponding gear boxes.

[0010] Further, the adjusting assembly comprises a first adjusting device and a second adjusting device, the first adjusting device is used for driving the first lead screw on at least one side to rotate, the second adjusting device is used for driving the second lead screw on at least one side to rotate, the first adjusting device and the second adjusting device are the same, the first adjusting device and the second adjusting device both comprise second gears which are perpendicularly engaged with the first gears, the second gears are installed in the corresponding gear boxes, the second gears are connected with connecting rods, the connecting rods penetrate out of the gear boxes and are connected with rotating rods, gear sleeves are fixedly arranged at both ends of the rotating rods, movable sleeves which are matched with the gear sleeves are sleeved on the connecting rods, and at least one side of the connecting rods and the rotating rods are connected through the matching of the movable sleeves and the gear sleeves on the same side.

[0011] Further, the automatic stripping device comprises a first stripping device and a second stripping device, the first stripping device pulls the horizontal plate to move along the first slide rail, drives the printing plate assembly to move along the length of the first slide rail, and realizes the stripping between the printing plate assembly and the impression roller; the second stripping device pulls the first screw rod to realize the movement of the screen assembly along the second slide rail, and realizes the stripping between the screen assembly and the printing plate assembly.

[0012] Further, the first stripping device comprises a first telescopic part fixedly connected with the gear box, and the telescopic rod of the first telescopic part is fixedly installed on the second vertical plate; when the printing plate assembly is stripped from the impression roller, the piston rod drives the second vertical plate and the gear box to move towards the second vertical plate, so that the first vertical plate, the horizontal plate and the printing plate assembly arranged on the horizontal plate move along the first slide rail by more than 1mm, and the gear box is attached to the first vertical plate.

[0013] Further, the second stripping device comprises a second telescopic part fixedly connected with the gear box, and the telescopic rod of the second telescopic part is fixedly installed on the second vertical plate; when the screen assembly is stripped from the printing assembly, the second telescopic part moves towards the second vertical plate, the end of the piston rod abuts against the bottom of the cylinder cavity, drives the gear box and the screen assembly to move along the second slide rail by more than 1mm, and the gear box is separated from the first vertical plate.

[0014] Further, the first telescopic part and the second telescopic part can be a cylinder or a hydraulic cylinder.

[0015] Further, the printing plate assembly comprises symmetrically arranged supports, and a printing plate roller is connected between the supports; the screen assembly comprises symmetrically arranged supports, and a screen roller is connected between the supports.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. By arranging the first stripping device and the second stripping device, the printing plate roller and the screen roller can be automatically moved along the slide rail, the precise stripping between the impression roller and the printing plate roller and the precise stripping between the printing plate roller and the screen roller are realized, and the surface of the printed matter is prevented from being damaged due to the friction between the rollers.

[0018] 2. The first telescopic part and the second telescopic part in the first stripping device and the second stripping device can be a cylinder or a hydraulic cylinder, the telescopic distance is equal to the moving distance between the rollers, and the telescopic distance can be set according to the actual situation, that is, the rollers can press the printed matter in the printing state, and the precise synchronous horizontal stripping between the rollers can be realized in the stripping state.

[0019] 3、Due to the thickness of the printed matter is not consistent, can be driven by the rotation of the first adjusting member, the second adjusting member first screw, the rotation of the second screw, the distance between the printing plate assembly and the impression roller, the distance between the printing plate assembly and the screen assembly, to realize the printing of different printed matter.

[0020] 4、Through the first adjusting member and the second adjusting member can also be achieved by hand stripping. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 For the sleeve type flexible printing machine adjustable device is a three-dimensional schematic diagram;

[0022] Figure 2 For the sleeve type flexible printing machine adjustable device printing state schematic diagram;

[0023] Figure 3 For the sleeve type flexible printing machine adjustable device stripping state schematic diagram;

[0024] Figure 4 For Figure 1 the local schematic diagram;

[0025] Figure 5 For Figure 4 the side view;

[0026] Figure 6 For Figure 4 the A part of the explosion schematic diagram;

[0027] Figure 7 For Figure 2 the first stripping member and the second stripping member in the sectional view;

[0028] Figure 8 For Figure 3 the first stripping member and the second stripping member in the sectional view;

[0029] Figure 9 For Figure 1 the real object diagram;

[0030] Figure 10 For the stripping member is a real object diagram;

[0031] Figure 11 For the adjusting assembly is a real object diagram.

[0032] Fig. 1 is a fixed rack; 2 is a printing roller; 3 is a first support; 31 is a first sliding rail; 4 is a second support; 41 is a cross plate; 42 is a first vertical plate; 43 is a second vertical plate; 44 is a first sliding block; 45 is a second sliding rail; 5 is a plate assembly; 51 is a plate roller; 6 is a screen assembly; 61 is a screen roller; 62 is a second sliding block; 7 is a first lead screw; 8 is a second lead screw; 9 is a first gear; 10 is an adjusting assembly; 101 is a second gear; 102 is a connecting rod; 103 is a movable sleeve; 104 is a rotating rod; 105 is a gear sleeve; 11 is a gear box; 12 is a first stripping piece; 121 is a first telescopic piece; 13 is a second stripping piece; 131 is a second telescopic piece; 14 is a guide rod; 15 is a fixed rod. DETAILED DESCRIPTION

[0033] In order to further illustrate the technical means and effects taken by the present application to achieve the predetermined object, the specific embodiments, structures, features and effects according to the present application are described in detail below in combination with the drawings and preferred embodiments.

[0034] The product involved in the present case has applied for 3 patents on the same day, which limit the protection range from different angles, have actual protection needs, and the product involved has been processed into a physical object, which is specifically Figures 9-11 .

[0035] Referring to Figures 1 to 8 , the flexible printing machine of the embodiment includes a fixed rack 1, the fixed rack 1 is provided with a printing roller 2, the first support 3 is symmetrically and fixedly arranged on the side of the fixed rack 1, the second support 4 is arranged on the first support 3, the first support 3 and the second support 4 are slidingly connected, the plate assembly 5 and the screen assembly 6 are arranged on the side of the second support 4 close to the fixed rack 1, the screen assembly 6 is slidingly connected with the second support 4, the adjusting assembly 10 and the automatic stripping piece are arranged on the side of the second support 4 away from the fixed rack 1, the adjusting assembly 10 and the automatic stripping piece are installed on the second support 4, the first lead screw 7 is threadedly connected with the first support 3, the second lead screw 8 is connected with the screen assembly 6, the adjusting assembly 10 drives at least one side of the first lead screw 7 or at least one side of the second lead screw 8 to rotate, so as to adjust the distance between at least one side of the printing roller 2 and the plate assembly 5 or the distance between at least one side of the plate assembly 5 and the screen assembly 6; the automatic stripping piece is used to realize the synchronous movement of the plate assembly 5 and the screen assembly 6.

[0036] On the basis of the above embodiment, the second support 4 comprises a horizontal plate 41, the horizontal plate 41 is provided with a second sliding rail 45, the plate assembly 5 is fixedly installed on the horizontal plate 41, the screen assembly 6 is installed on the second sliding rail 45 through a second sliding block 62, the horizontal plate 41 is provided with a first vertical plate 42 away from the end surface of the fixed rack 1, the first vertical plate 42 is connected with a second vertical plate 43 through a fixing rod, a plurality of gear boxes 11 are installed on the first vertical plate 42, the gear boxes 11 are all movably connected to the first vertical plate 42 through guide rods 14, and the automatic stripping part is fixedly installed on the end surface of the gear box 11 towards the second vertical plate 43.

[0037] On the basis of the above embodiment, the end surface of the first support 3 towards the fixed rack 1 is provided with a through hole, the fixed rack 1 is provided with a fixing rod, the fixing rod penetrates through the through hole and is provided with a nut at the end, the first support 3 is provided with a first sliding rail 31, the bottom of the horizontal plate 41 is provided with a first sliding block 44, and the horizontal plate 41 is installed on the first sliding rail 31 through the first sliding block 44.

[0038] On the basis of the above embodiment, the first lead screw 7 and the second lead screw 8 penetrate through the first vertical plate at one end close to the first vertical plate 42 and are installed with a first gear 9, and the first gear 9 is installed in the corresponding gear box 11.

[0039] On the basis of the above embodiment, the adjusting assembly 10 comprises a first adjusting part and a second adjusting part, the first adjusting part is used for driving the rotation of at least one side of the first lead screw 7, the second adjusting part is used for driving the rotation of at least one side of the second lead screw 8, the first adjusting part and the second adjusting part are the same, the first adjusting part and the second adjusting part both comprise a second gear 101 vertically engaged with the first gear 9, the second gear 101 is arranged in the corresponding gear box 11, the second gear 101 is connected with a connecting rod 102, the connecting rod 102 penetrates out of the gear box 11 and is connected with a rotating rod 104, the rotating rod 104 is provided with a gear sleeve 105 at both ends, the connecting rod 102 is provided with a movable sleeve 103 matched with the gear sleeve 105, and at least one side of the connecting rod 102 is connected with the rotating rod 104 through the matching of the movable sleeve 103 and the gear sleeve 105 on the same side.

[0040] On the basis of the above embodiment, the automatic stripping part comprises a first stripping part 12 and a second stripping part 13, the first stripping part 12 pulls the horizontal plate 41 to move along the first sliding rail 31, drives the plate assembly 5 to move along the length of the first sliding rail 31, and realizes the disconnection between the plate assembly 5 and the impression roller 2; the second stripping part 13 pulls the first lead screw 7 to realize the movement of the screen assembly 6 along the second sliding rail 45, and realizes the disconnection between the screen assembly 6 and the plate assembly 5.

[0041] Based on the above embodiments, the first ejector 12 includes a first telescopic member 121 fixedly connected to the gearbox 11. The telescopic rod of the first telescopic member 121 is fixedly installed on the second vertical plate 43. When the printing plate assembly 5 is disengaged from the impression roller 2, the piston rod drives the second vertical plate 43 and the gearbox 11 to move towards the second vertical plate 43, so that the first vertical plate 42, the horizontal plate 41 and the printing plate assembly 5 set on the horizontal plate 41 move more than 1mm along the first slide rail 31, and the gearbox 11 fits against the first vertical plate 42.

[0042] Based on the above embodiments, the second ejector 13 includes a second telescopic member 131 fixedly connected to the gearbox 11. The telescopic rod of the second telescopic member 131 is fixedly installed on the second vertical plate 43. When the anilox assembly 6 is disengaged from the printing assembly, the second telescopic member 131 will move towards the second vertical plate 43. The end of the piston rod abuts against the bottom of the cylinder cavity, causing the gearbox 11 and the anilox assembly 6 to move more than 1 mm along the second slide rail 45, and the gearbox 11 separates from the first vertical plate 42.

[0043] Based on the above embodiments, the first telescopic member 121 and the second telescopic member 131 may be a cylinder or a hydraulic cylinder.

[0044] Based on the above embodiments, the printing plate assembly 5 includes symmetrically arranged supports, and a printing plate roller 51 is connected between the supports. The printing plate roller 51 and the impression roller 2 are on the same horizontal plane. The anilox assembly 6 includes symmetrically arranged supports, and an anilox roller 61 is connected between the supports. The anilox roller 61 and the printing plate roller 51 are on the same horizontal plane.

[0045] The above improvements are specifically as follows: Figures 1 to 8 As shown, the machine includes a fixed frame 1, on which an impression roller 2 is mounted. A first support 3 is symmetrically fixed to the side of the fixed frame 1. A first slide rail 31 is mounted on the first support 3. A second support 4 is mounted on the first slide rail 31. The second support 4 includes a horizontal plate 41, on which a printing plate assembly 5 and an anilox assembly 6 are mounted. The printing plate assembly 5 is fixedly mounted on the horizontal plate 41. The anilox assembly 6 is movably connected to the horizontal plate 41 via a second slide rail 45. A first vertical plate 42 is located at the end of the horizontal plate 41 and is connected to the second vertical plate via a fixing rod. 43. A first ejector plate 12 and a second ejector plate 13 are provided between the first vertical plate 42 and the second vertical plate 43. A gearbox 11 is provided on the first vertical plate 42. The gearbox 11 is movably connected to the first vertical plate 42 through a guide rod 14. A through hole is provided on the end face of the first bracket 3 facing the fixed frame 1. A fixing rod is provided on the fixed frame 1. The fixing rod passes through the through hole and has a nut at its end. The printing plate assembly 5 includes symmetrically arranged supports. A printing plate roller 51 is connected between the supports. The anilox assembly 6 includes symmetrically arranged supports. Anilox roller 61 is connected between the supports.

[0046] The first support 3 is connected with the first screw rod 7, one end of the first screw rod 7 is threadedly connected with the first support 3, the second screw rod 8 is threadedly connected with the support, the bottom of the support is fixedly provided with the second sliding block 62, the second sliding block 62 is arranged on the second sliding rail 45, the second sliding rail 45 is arranged on the horizontal plate 41, the end of the horizontal plate 41 away from the fixed rack 1 is provided with the first vertical plate 42 and the second vertical plate 43, the first vertical plate 42 and the second vertical plate 43 are connected through the fixing rod, the gear box 11 is arranged between the first vertical plate 42 and the second vertical plate 43, the gear box 11 is arranged on the first vertical plate 42 through the guide rod 14, one end of the guide rod 14 is fixed with the gear box 11, and the other end is movably connected with the first vertical plate 42, the bottom of the horizontal plate 41 is provided with the first sliding block 44, the first sliding block 44 is slidably connected with the first sliding rail 31, and the first screw rod 7 and the second screw rod 8 are provided with the first gear 9 penetrating through the first vertical plate 42 at the end close to the first vertical plate 42, the first gear 9 is arranged in the gear box 11, and the first screw rod 7 and the second screw rod 8 are fixed in the gear box 11;

[0047] To adjust the distance between the plate roller 51 and the impression roller 2, the first adjusting part is rotated, the first adjusting part comprises a second gear 101 engaged with the first gear 9, the second gear 101 is arranged in the gear box 11 through a connecting rod 102, the connecting rod 102 penetrates out of the gear box 11 and is connected with a rotating rod 104, the connecting rod 102 is a hexagonal rod, an movable sleeve 103 is sleeved on the connecting rod 102, gear sleeves 105 are fixedly arranged on the two sides of the rotating rod 104, the movable sleeve 103 is engaged and matched with the gear sleeves 105, when the movable sleeve 103 is matched with the gear sleeves 105, the connecting rod 102 and the rotating rod 104 are synchronously rotated, so that the second gear 101 is synchronously rotated, and then the rotation of the first gear 9 is driven, the rotation of the first screw rod 7 is realized, since the first support 3 is fixed, the first screw rod 7 moves, the first screw rod 7 drives the second support 4 to move along the first sliding rail 31, the position change of the plate assembly 5 on the first sliding rail 31 is realized, and then the distance change between the plate roller 51 and the impression roller 2 is realized; the second adjusting part is the same in structure as the first adjusting part, to adjust the distance between the plate roller 51 and the anilox roller 61, the rotating rod 104 on the second adjusting part is rotated, the rotation of the second screw rod 8 is realized, when the second screw rod 8 rotates, the anilox assembly 6 moves along the length direction of the second sliding rail 45, the position change of the anilox assembly 6 on the second sliding rail 45 is realized, and then the distance change between the plate roller 51 and the anilox roller 61 is realized, through the arrangement of the movable sleeve 103 and the gear sleeves 105, the distance change between the rollers on one side or two sides is realized, through the arrangement of the first adjusting part and the second adjusting part, the position change of the horizontal plate 41 on the first sliding rail 31 and the position change of the anilox assembly 6 on the second sliding rail 45 can be realized, and manual stripping can also be realized;

[0048] Or is through the first stripping part 12 and the second stripping part 13 realizes automatic stripping, the first stripping part 12 includes with the end surface of the second vertical plate 43 fixed connection first telescopic part 121, first telescopic part 121 is pneumatic cylinder or is hydraulic cylinder, the piston rod of first pneumatic cylinder is fixedly installed on the second vertical plate 43, and the first stripping part 12 realizes that the printing plate roller 51 is separated from the impression roller 2, and when not separated, the state is that the gear box 11 is separated from the first vertical plate 42, when starting the first pneumatic cylinder, the piston rod is fixed on the second vertical plate 43, the piston rod drives the second vertical plate 43 to stretch out to the second vertical plate 43 direction, the second vertical plate 43 drives the first vertical plate 42, the first vertical plate 42 drives the horizontal plate 41, and the horizontal plate 41 drives the printing plate roller 51 along the first slide rail 31, and the gear box 11 is attached to the first vertical plate 42, and the second stripping part 13 is the same as the structure of the first stripping part 12, and the second stripping part 13 realizes that the anilox roller 61 is separated from the printing plate roller 51, and when not separated, the state is that the other gear box 11 is attached to the first vertical plate 42, when starting the second pneumatic cylinder, since the piston rod is fixed on the second vertical plate, the piston rod cannot move, and will become the cylinder body to move to the second vertical plate 43, the cylinder body drives the gear box 11, the gear box 11 drives the second lead screw 8, the second lead screw 8 drives the anilox roller 61 to move along the second slide rail 45, and the gear box 11 is separated from the first vertical plate 42;The first stripping part 12 and the second stripping part 13 move synchronously, simultaneously realize the movement of the printing plate roller 51 and the anilox roller 61, are convenient and fast, and the distance of the piston rod activity is the distance between the anilox roller 61 and the printing plate roller 51, and the printing plate roller 51 and the impression roller 2, and the hydraulic cylinder can also replace the pneumatic cylinder to realize stripping.

[0049] The above is only the preferred embodiment of the present application, and does not limit the present application in any form, although the present application has been disclosed as above, however, it is not intended to limit the present application, any person skilled in the art, without departing from the technical solution range of the present application, can make some changes or modifications to the equivalent embodiments of equivalent changes disclosed above, but as long as it does not deviate from the technical solution content of the present application, according to the technical essence of the present application, any brief introduction, modification, equivalent change and modification of the above embodiment, still belongs to the range of the technical solution of the present application.

Claims

1. A flexographic printing press, comprising a fixed frame (1), wherein an impression roller (2) is disposed on the fixed frame (1), characterized in that: The fixed frame (1) is symmetrically fixed with a first bracket (3) on its side. A second bracket (4) is provided on the first bracket (3). The first bracket (3) and the second bracket (4) are slidably connected. The side of the second bracket (4) closest to the fixed frame (1) is provided with a printing plate assembly (5) and an anilox assembly (6). The anilox assembly (6) is slidably connected to the second bracket (4). The side away from the fixed frame (1) is provided with an adjustment assembly (10) and an automatic plate release mechanism. The adjustment assembly (10) and the automatic plate release mechanism are installed on the first bracket (1). On the second support (4), the first support (3) is threadedly connected to a first lead screw (7), and the anilox assembly (6) is connected to a second lead screw (8). The adjustment component (10) adjusts the distance between the impression roller (2) and the printing plate assembly (5) or the distance between the printing plate assembly (5) and the anilox assembly (6) by driving the first lead screw (7) or the second lead screw (8) on at least one side to rotate. The automatic plate release component is used to realize the synchronous movement of the printing plate assembly (5) and the anilox assembly (6). The second support (4) includes a horizontal plate (41), on which a second slide rail (45) is provided. The printing plate assembly (5) is fixedly installed on the horizontal plate (41). The anilox assembly (6) is installed on the second slide rail (45) via a second slider (62). A first vertical plate (42) is provided on the end face of the horizontal plate (41) away from the fixed frame (1). The first vertical plate (42) is connected to a second vertical plate (43) via a fixed rod. Multiple gearboxes (11) are installed on the first vertical plate (42). All gearboxes (11) are movably connected to the first vertical plate (42) via guide rods (14). The automatic plate ejector is fixedly installed on one side of the gearbox (11) facing the second vertical plate (43). The first bracket (3) is provided with a first slide rail (31), and the bottom of the horizontal plate (41) is provided with a first slider (44). The horizontal plate (41) is mounted on the first slide rail (31) through the first slider (44). The first lead screw (7) and the second lead screw (8) have their ends near the first vertical plate (42) passing through the first vertical rod and are equipped with a first gear (9), which is installed in the corresponding gearbox (11). The adjustment assembly (10) includes a first adjustment member and a second adjustment member. The first adjustment member is used to drive the first lead screw (7) on at least one side to rotate, and the second adjustment member is used to drive the second lead screw (8) on at least one side to rotate. The first adjustment member and the second adjustment member are the same. Both the first adjustment member and the second adjustment member include a second gear (101) that meshes perpendicularly with the first gear (9). The second gear (101) is set in the corresponding gearbox (11). The second gear (101) is connected to the connecting rod (102). The connecting rod (102) passes through the gearbox (11) and is connected to the rotating rod (104). Gear sleeves (105) are fixedly provided at both ends of the rotating rod (104). The connecting rod (102) is fitted with a movable sleeve (103) that is adapted to the gear of the gear sleeve (105). By matching the movable sleeve (103) on the same side with the gear sleeve (105), the connecting rod (102) on at least one side is connected to the rotating rod (104) and rotates synchronously. The automatic plate release mechanism includes a first plate release component (12) and a second plate release component (13). The first plate release component (12) pulls the horizontal plate (41) to move along the first slide rail (31), thereby causing the printing plate assembly (5) to move along the length of the first slide rail (31) to separate the printing plate assembly (5) from the impression roller (2). The second plate release component (13) pulls the first lead screw (7) to move the anilox assembly (6) along the second slide rail (45) to separate the anilox assembly (6) from the printing plate assembly (5). The first ejector (12) includes a first telescopic member (121) fixedly connected to the gearbox (11). The telescopic rod of the first telescopic member (121) is fixedly installed on the second vertical plate (43). When the printing plate assembly (5) is disengaged from the impression roller (2), the piston rod drives the second vertical plate (43) and the gearbox (11) to move towards the second vertical plate (43), so that the first vertical plate (42), the horizontal plate (41) and the printing plate assembly (5) set on the horizontal plate (41) move more than 1mm along the first slide rail (31), and the gearbox (11) fits against the first vertical plate (42). The second ejector (13) includes a second telescopic member (131) fixedly connected to the gearbox (11). The telescopic rod of the second telescopic member (131) is fixedly installed on the second vertical plate (43). When the anilox assembly (6) is separated from the printing assembly, the second telescopic member (131) will move towards the second vertical plate (43). The end of the piston rod abuts against the bottom of the cylinder cavity, causing the gearbox (11) and the anilox assembly (6) to move more than 1 mm along the second slide rail (45), and the gearbox (11) separates from the first vertical plate (42).

2. The flexographic printing press according to claim 1, characterized in that: The first telescopic member (121) and the second telescopic member (131) can be a cylinder or a hydraulic cylinder.

3. The flexographic printing press according to claim 2, characterized in that: The printing plate assembly (5) includes symmetrically arranged supports, and printing plate rollers (51) are connected between the supports. The printing plate rollers (51) and the impression rollers (2) are on the same horizontal plane. The anilox assembly (6) includes symmetrically arranged supports, and an anilox roller (61) is connected between the supports. The anilox roller (61) and the printing plate rollers (51) are on the same horizontal plane.

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