Paper feeding mechanism of flexible plate printing machine

Abstract

The utility model belongs to the technical field of flexographic printing machines, and discloses a paper feeding mechanism of a flexographic printing machine, which comprises a table board, limiting frames are fixedly mounted at the front end and the rear end of the top of the table board, movable plates are movably connected in the limiting frames, and rollers are movably connected to the inner sides of the movable plates. A fixing frame is fixedly mounted at the top of the movable plate, and a spring located on the inner side of the fixing frame is fixedly mounted at the top of the movable plate. By arranging the limiting frame, the movable plate, the fixed frame, the spring and the elliptical plate, an operator firstly starts a first motor, the operation of the first motor enables a rotating shaft to drive the elliptical plate to rotate, and at the moment, the elliptical plate rotates to extrude the fixed frame; at the moment, the fixed frame drives the movable plate and the roller to move upwards together under the limitation of the limiting frame, the movable plate exerts extrusion force on the spring at the same time, and the roller and the rolling wheel can carry out paper feeding operation on paper of different thicknesses at the moment.

Description

Technical Field

[0001] The utility model belongs to the technical field of flexographic printing machines, and particularly relates to a paper feeding mechanism of a flexographic printing machine. Background Art

[0002] The operation content of a flexographic printing machine is generally that ink is transferred from an ink fountain roller and an anilox roller to the graphic part of the printing plate to make it inked, and then printing pressure is applied by a pressure cylinder to transfer the ink on the printing plate to the printing substrate.

[0003] At the present stage, when operators print large-sized papers, they usually use relevant flexographic printing machines. The flexographic printing machines use fluid inks with strong fluidity. When operators actually use relevant flexographic printing machines, they need to perform paper feeding operations on large-sized papers. However, since the thicknesses of the papers are different, when operators encounter papers with different thicknesses, they need to use flexographic printing machines that are adapted to them, which increases the limitations of the printing machines. Therefore, it is necessary to improve them. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above problems. The utility model provides a paper feeding mechanism of a flexographic printing machine, which has the advantage of feeding papers with different thicknesses.

[0005] To achieve the above object, the utility model provides the following technical solution: A paper feeding mechanism of a flexographic printing machine includes a tabletop. Both the front and rear ends of the top of the tabletop are fixedly installed with limit frames. An activity plate is movably connected inside the limit frames. A roller is movably connected to the inner side of the activity plate. A fixed frame is fixedly installed on the top of the activity plate. A spring located inside the fixed frame is fixedly installed on the top of the activity plate. The other end of the spring is fixedly connected to the top inside the limit frame. Installation plates are fixedly installed at the upper ends of the left and right sides of the limit frames. A first motor is fixedly installed on the left side of the installation plate. The other end of the output shaft of the first motor is fixedly sleeved with a rotating shaft. The other end of the rotating shaft extends to the right side of the installation plate. An elliptical plate is fixedly sleeved on the outer surface of the rotating shaft. The outer surface of the elliptical plate is movably connected to the top inside the fixed frame cavity.

[0006] Preferably, a second motor is fixedly installed at the bottom of the back of the limit frame. The other end of the output shaft of the second motor is fixedly sleeved with a rotating rod.

[0007] Preferably, the other end of the rotating rod extends to the front of the limit frame. A roller is fixedly sleeved on the outer surface of the rotating rod.

[0008] Preferably, at the front and rear ends on the right side of the top of the tabletop, there are two limit plates movably connected. On the left and right sides of the bottom of each limit plate, there are connecting blocks fixedly installed inside the tabletop, and the outer surface of each connecting block is movably connected to the inside of the tabletop.

[0009] Preferably, at the bottom of each connecting block, there is a driving plate fixedly installed at the bottom of the tabletop, and the top of the driving plate is movably connected to the bottom of the tabletop.

[0010] Preferably, on the left side of the bottom of the tabletop, there is a support plate fixedly installed, and on the left side of the support plate, there is a pneumatic cylinder fixedly installed, and the other end of the pneumatic cylinder extends to the right side of the support plate.

[0011] Preferably, on the right side of the pneumatic cylinder, there is a moving plate fixedly installed. On the front and rear sides of the right side of the moving plate, there are inclined plates hinged respectively, and the other ends of the inclined plates are hinged to the inner side of the driving plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, by setting the limit frame, movable plate, fixed frame, spring and elliptical plate, the operator first starts the first motor. The operation of the first motor will cause the rotating shaft to drive the elliptical plate to rotate. At this time, the elliptical plate will rotate and squeeze the fixed frame. Then the fixed frame will drive the movable plate and the roller to move upward under the limitation of the limit frame. At this time, the movable plate will simultaneously apply a squeezing force to the spring. Then the roller and the roller can feed papers with different thicknesses.

[0014] 2. In the present utility model, by setting the limit plate, connecting block, driving plate, moving plate and inclined plate, the operator first starts the pneumatic cylinder. The operation of the pneumatic cylinder will cause the moving plate to move to the right side. At this time, the moving plate will cause the inclined plate to rotate and squeeze the driving plate. Then the driving plate will cause the connecting block to drive the limit plate to move away from each other. At this time, the limit plate can limit papers with different sizes, and at the same time, the practicability of the printing machine is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a cross-sectional structural diagram on the left side of the present utility model;

[0017] Figure 3 is a cross-sectional structural diagram on the front side of the present utility model;

[0018] Figure 4 is a cross-sectional structural diagram of the connecting block of the present utility model;

[0019] Figure 5 This is a schematic structural view of the bottom of the utility model.

[0020] In the figure: 1, tabletop; 2, limit frame; 3, movable plate; 4, roller; 5, fixed frame; 6, spring; 7, mounting plate; 8, first motor; 9, rotating shaft; 10, elliptical plate; 11, second motor; 12, rotating rod; 13, roller; 14, limit plate; 15, connecting block; 16, driving plate; 17, support plate; 18, pneumatic cylinder; 19, moving plate; 20, inclined plate. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figures 1 to 5 shown, the present utility model provides a paper feeding mechanism for a flexible plate printing machine, including a tabletop 1. Limit frames 2 are fixedly installed at both the front and rear ends of the top of the tabletop 1. A movable plate 3 is movably connected inside the limit frame 2. A roller 4 is movably connected to the inner side of the movable plate 3. A fixed frame 5 is fixedly installed at the top of the movable plate 3. A spring 6 located inside the fixed frame 5 is fixedly installed at the top of the movable plate 3. The other end of the spring 6 is fixedly connected to the top inside the limit frame 2. Mounting plates 7 are fixedly installed at the upper ends of the left and right sides of the limit frame 2. A first motor 8 is fixedly installed on the left side of the mounting plate 7. The other end of the output shaft of the first motor 8 is fixedly sleeved with a rotating shaft 9. The other end of the rotating shaft 9 extends to the right side of the mounting plate 7. An elliptical plate 10 is fixedly sleeved on the outer surface of the rotating shaft 9. The outer surface of the elliptical plate 10 is movably connected to the top inside the cavity of the fixed frame 5.

[0023] The operator first starts the first motor 8. The operation of the first motor 8 will cause the rotating shaft 9 to drive the elliptical plate 10 to rotate. At this time, the elliptical plate 10 will rotate and squeeze the fixed frame 5. At this time, the fixed frame 5 will drive the movable plate 3 and the roller 4 to move smoothly upward under the limitation of the limit frame 2. At this time, the movable plate 3 will simultaneously apply a squeezing force to the spring 6. At this time, paper feeding operations for papers of different thicknesses can be performed.

[0024] Refer to Figure 2 , a second motor 11 is fixedly installed at the bottom of the back of the limit frame 2. The other end of the output shaft of the second motor 11 is fixedly sleeved with a rotating rod 12.

[0025] As a technical optimization solution of the present utility model, the operator starts the second motor 11. At this time, the second motor 11 will cause the rotating rod 12 to rotate.

[0026] Reference Figures 1 to 4 The other end of the rotating rod 12 extends to the front of the limiting frame 2, and a roller 13 is fixedly sleeved on the outer surface of the rotating rod 12.

[0027] As a technical optimization scheme of the present utility model, when the rotating rod 12 rotates, the roller 13 will rotate simultaneously.

[0028] Reference Figure 1 、 Figure 2 and Figure 4 Both the front and rear ends on the right side of the top of the tabletop 1 are movably connected with limiting plates 14. Both the left and right sides of the bottom of the limiting plates 14 are fixedly installed with connecting blocks 15 located inside the tabletop 1, and the outer surface of the connecting blocks 15 is movably connected with the inside of the tabletop 1.

[0029] As a technical optimization scheme of the present utility model, when the connecting block 15 moves, the connecting block 15 will drive the limiting plate 14 to move simultaneously.

[0030] Reference Figures 3 to 5 The bottom of the connecting block 15 is fixedly installed with a driving plate 16 located at the bottom of the tabletop 1, and the top of the driving plate 16 is movably connected with the bottom of the tabletop 1.

[0031] As a technical optimization scheme of the present utility model, when the driving plate 16 moves, the driving plate 16 will cause the connecting block 15 to drive the limiting plate 14 to move simultaneously.

[0032] Reference Figure 2 、 Figure 3 and Figure 5 A support plate 17 is fixedly installed on the left side of the bottom of the tabletop 1. An air cylinder 18 is fixedly installed on the left side of the support plate 17, and the other end of the air cylinder 18 extends to the right side of the support plate 17.

[0033] As a technical optimization scheme of the present utility model, due to the design of the support plate 17, the support plate 17 will have a good effect of fixedly supporting the air cylinder 18.

[0034] Reference Figure 3 and Figure 5 A moving plate 19 is fixedly installed on the right side of the air cylinder 18. The front and rear sides on the right side of the moving plate 19 are respectively hinged to an inclined plate 20, and the other end of the inclined plate 20 is hinged to the inner side of the driving plate 16.

[0035] As a technical optimization scheme of the present utility model, when the moving plate 19 moves to the right, the inclined plate 20 will rotate and squeeze the driving plate 16.

[0036] The working principle and usage process of the present utility model:

[0037] When the operator needs to feed papers with different thicknesses, first start the first motor 8. The operation of the first motor 8 will cause the rotating shaft 9 to drive the elliptical plate 10 to rotate. At this time, the elliptical plate 10 will rotate and squeeze the fixing bracket 5. Then the fixing bracket 5 will drive the movable plate 3 and the roller 4 to move upward under the limitation of the limiting bracket 2. At this time, the movable plate 3 will simultaneously apply a squeezing force to the spring 6. Then the operator starts the second motor 11. The second motor 11 will cause the rotating rod 12 to drive the roller 13 to rotate. At this time, the roller 13 will cooperate with the roller 4 to perform the paper feeding operation on the paper.

[0038] Then the operator starts the air cylinder 18. The operation of the air cylinder 18 will cause the moving plate 19 to move to the right. At this time, the moving plate 19 will cause the inclined plate 20 to rotate and squeeze the driving plate 16. Then the driving plate 16 will cause the connecting block 15 to drive the limiting plate 14 to move away from each other. At this time, the limiting plate 14 will perform the limiting operation on papers with different sizes.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paper feeding mechanism of a flexographic printing press, comprising a table (1), characterized in that: A limiting frame (2) is fixedly installed at both the front and rear ends of the top of the table top (1); a movable plate (3) is movably connected inside the limiting frame (2); a roller (4) is movably connected inside the movable plate (3); a fixed frame (5) is fixedly installed on the top of the movable plate (3); a spring (6) located inside the fixed frame (5) is fixedly installed on the top of the movable plate (3); the other end of the spring (6) is fixedly connected to the top of the limiting frame (2); mounting plates (7) are fixedly installed on the upper ends of the left and right sides of the limiting frame (2); a first motor (8) is fixedly installed on the left side of the mounting plate (7); a rotating shaft (9) is fixedly sleeved on the other end of the output shaft of the first motor (8); the other end of the rotating shaft (9) extends to the right side of the mounting plate (7); an elliptical plate (10) is fixedly sleeved on the outer surface of the rotating shaft (9); the outer surface of the elliptical plate (10) is movably connected to the top of the inner cavity of the fixing frame (5).

2. The paper feeding mechanism of a flexographic printing press according to claim 1, characterized in that: A second motor (11) is fixedly mounted on the bottom of the back side of the limiting frame (2), and a rotating rod (12) is fixedly sleeved on the other end of the output shaft of the second motor (11).

3. The paper feeding mechanism of a flexographic printing press according to claim 2, characterized in that: The other end of the rotating rod (12) extends to the front side of the limiting frame (2), and a roller (13) is fixedly sleeved on the outer surface of the rotating rod (12).

4. The paper feeding mechanism of a flexographic printing press according to claim 1, characterized in that: The front and rear ends of the top right side of the table top (1) are movably connected to a limit plate (14), and the left and right sides of the bottom of the limit plate (14) are fixedly mounted with connection blocks (15) located inside the table top (1), and the outer surface of the connection block (15) is movably connected to the inside of the table top (1).

5. The paper feeding mechanism of a flexographic printing press according to claim 4, characterized in that: A driving plate (16) located at the bottom of the table top (1) is fixedly mounted at the bottom of the connection block (15), and the top of the driving plate (16) is movably connected to the bottom of the table top (1).

6. The paper feeding mechanism of a flexographic printing press according to claim 1, characterized in that: A support plate (17) is fixedly installed on the left side of the bottom of the table top (1), and a pneumatic cylinder (18) is fixedly installed on the left side of the support plate (17), and the other end of the pneumatic cylinder (18) extends to the right side of the support plate (17).

7. The paper feeding mechanism of a flexographic printing press according to claim 6, characterized in that: A movable plate (19) is fixedly mounted on the right side of the pneumatic cylinder (18), and the front and rear sides of the right side of the movable plate (19) are hinged to the inclined plate (20), and the other end of the inclined plate (20) is hinged to the inner side of the driving plate (16).

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