Printing machine with anti-centrifugation printing plate roller

By setting a baffle structure on the periphery of the printing plate roller, the problem of uneven lubricating oil in the printing press is solved, uniform spraying of oil and reducing friction, and improving printing quality and operation convenience.

CN223161496UActive Publication Date: 2025-07-29WENZHOU WANXING PLATE MAKING CO LTD
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Patent Information

Application Number
CN202422627283.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-07-29
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

In existing printing machines, the centrifugal force generated by the printing plate roller when it rotates causes uneven lubricating oil, resulting in increased friction and damage to the plastic packaging.

Method used

A baffle structure is arranged on the periphery of the plate roller. The flipped oil is collected by the baffle as it moves, and through the cooperation of gears, driving motors and springs, ensuring that the oil is sprayed evenly and preventing the influence of centrifugal force.

Benefits of technology

The uniformity of the oil on the plate roller surface is achieved, the friction between the plastic packaging and the plate roller is reduced, the damage to the plastic packaging is avoided, and the printing quality and operation convenience are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The printing machine comprises a base, a guide rail is fixedly connected to the bottom of the inner side of the base, a sliding block is installed on the surface of the guide rail in a sliding mode, a connecting block is fixedly connected to one side of the sliding block, a clamping pin is fixedly connected to the inner side of the connecting block, and the clamping pin is fixedly connected to the inner side of the base. By adopting the structural design that the baffles are arranged on the periphery of the printing roller, the baffles move along with the printing roller when lubricating oil is sprayed on the printing roller, and even if the printing roller rotates to throw away oil, the oil can fall into the baffles, so that the printing roller is prevented from being damaged, and the printing roller is prevented from being damaged. Therefore, continuous and repeated oil liquid spraying is achieved, uniformity of the oil liquid on the surface of the printing roller is guaranteed, centrifugal force generated by the printing roller is prevented from throwing away the oil liquid, friction force between a plastic package and the printing roller is reduced, damage to the plastic package is avoided, and convenience is provided for work and use of a user.
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Description

Technical Field

[0001] The utility model relates to the technical field of printing plate cylinders, in particular to a printing machine with a centrifugal - proof printing plate cylinder. Background Art

[0002] The plate cylinder, also called a steel roller, is generally used for plate making. The surface of the cylinder is copper - plated, and patterns are engraved by an intaglio electronic engraving machine. It is commonly used for the printing of plastic packaging. During the processing of plastic packaging, it passes over the printing plate cylinder of the printing machine, so that the required patterns are printed on the plastic packaging by the plate cylinder. When the printing machine drives the printing plate cylinder to rotate, the plate cylinder will generate centrifugal force, resulting in the lubricating oil just sprayed not being fully dispersed on the surface of the plate cylinder. Under the action of centrifugal force, the lubricating oil is thrown out, causing the lubricating oil to spill everywhere in the machine, "thinning" the thickness of the oil film on the surface of the plate cylinder, and also making the lubricating oil sprayed on the surface of the plate cylinder uneven. As a result, during the processing of plastic packaging, the oil film on the surface of the plate cylinder is quickly consumed, increasing the friction between the surface of the plate cylinder and the plastic packaging, thus damaging the plastic packaging.

[0003] In view of the above problems, the utility model is improved. Summary of the Invention

[0004] The utility model provides a printing machine with a centrifugal - proof printing plate cylinder, which solves the above - mentioned problems existing in the prior art during use.

[0005] The technical solution of the utility model is realized as follows: A printing machine with a centrifugal - proof printing plate cylinder includes a base. At the bottom inside the base, a guide rail is fixedly connected. A slider is slidably mounted on the surface of the guide rail. One side of the slider is fixedly connected with a connecting block. A retaining pin is fixedly connected inside the connecting block. At one end inside the base, a rotating rod adapted to the connecting block is rotatably mounted. A spiral groove adapted to the retaining pin is provided on the surface of the rotating rod. One end of the rotating rod penetrates to the outside of the base. A first gear is fixedly mounted on one side of the surface of the rotating rod. A baffle is fixedly mounted on the top of the slider. Symmetrically arranged oil injectors are provided through the surface of the baffle.

[0006] For the printing machine with a centrifugal - proof printing plate cylinder as described above, further: A driving motor is fixedly mounted on one side of the base. A second gear is fixedly mounted on the output shaft of the driving motor. The second gear is connected to the first gear by a chain drive.

[0007] For the printing machine with a centrifugal - proof printing plate cylinder as described above, further: Spring pieces are fixedly connected to the top of the guide rail at equally spaced intervals. A clamping hole adapted to the spring piece is provided at the top inside the slider.

[0008] The utility model relates to a printing press with an anti - centrifugal printing plate cylinder as described above. Further: A protection plate located above the guide rail is fixedly connected to the inner side of the base, and the slider is slidably installed inside the protection plate.

[0009] The utility model relates to a printing press with an anti - centrifugal printing plate cylinder as described above. Further: A printing plate cylinder located above the protection plate is rotatably installed on the inner side of the base. A stepping motor is fixedly installed on one side of the base, and the output shaft of the stepping motor penetrates into the interior of the base and is fixedly connected to the printing plate cylinder.

[0010] The utility model relates to a printing press with an anti - centrifugal printing plate cylinder as described above. Further: Frames are fixedly connected to both sides of the base, and brackets are fixedly installed on the outer sides of the frames.

[0011] The utility model relates to a printing press with an anti - centrifugal printing plate cylinder as described above. Further: A movable frame is movably installed at the top inside the bracket. An installation frame is fixedly installed inside the movable frame. A pressure roller adapted to the printing plate cylinder is rotatably installed between the two installation frames. An adjustment grip is fixedly installed on one side of the movable frame.

[0012] In summary, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model adopts a structural design of arranging a baffle around the plate cylinder. While spraying lubricating oil on the plate cylinder, the baffle moves along with it. Even if the rotating plate cylinder throws the oil away, the oil will fall into the baffle and then be carried away again by the rotating plate cylinder, thus realizing continuous repeated oil spraying, ensuring the uniformity of the oil on the surface of the plate cylinder, preventing the centrifugal force generated by the plate cylinder from throwing the oil away, reducing the friction between the plastic packaging and the plate cylinder, avoiding damage to the plastic packaging, and providing convenience for the user's work.

[0014] 2. Through the setting of gear one, drive motor and gear two, when the drive motor is started during operation, the drive motor drives gear two to rotate. Gear two drives gear one to rotate through a chain, and gear one drives the rotating rod to rotate, thereby realizing the working movement of the baffle partition, ensuring the normal progress of the oiling work on the plate cylinder, and providing convenience for the user's work.

[0015] 3. Through the setting of the spring piece and the card hole, the spring piece itself has elasticity. When the slider moves, the spring piece will automatically snap into the card hole. As the slider continues to move, the spring piece will move out of the card hole again. When the card hole aligns with the next spring piece, the spring piece will snap into the card hole again, realizing the positioning of the slider, ensuring the stability of the slider and the baffle partition after positioning, and also ensuring the stability of the baffle partition and the oil injector after resetting, providing convenience for the user's work.

[0016] 4. With the provision of the protection plate in the present utility model, the protection plate is located above the guide rail and also below the printing plate cylinder, serving as a blocking and protecting function to prevent foreign objects from jamming on the rotating rod, ensuring the normal rotation of the rotating rod for work, providing convenience for the user's work, and not affecting the normal movement of the slider.

[0017] 5. With the provision of the printing plate cylinder and the stepping motor in the present utility model, when working, the stepping motor is started to drive the printing plate cylinder to rotate. The plastic packaging passes over the surface of the printing plate cylinder, and then with the cooperation of the pressure roller, the pattern that meets the composite requirements can be printed on the plastic packaging, ensuring the normal operation of the printing machine and the normal processing of the plastic packaging, providing convenience for the user's work.

[0018] 6. With the provision of the printing plate cylinder and the stepping motor in the present utility model, when working, the stepping motor is started to drive the printing plate cylinder to rotate. The plastic packaging passes over the surface of the printing plate cylinder, and then with the cooperation of the pressure roller, the pattern that meets the composite requirements can be printed on the plastic packaging, ensuring the normal operation of the printing machine and the normal processing of the plastic packaging, providing convenience for the user's work.

[0019] 7. With the provision of the movable frame, mounting frame, pressure roller and adjusting grip in the present utility model, the pressure roller is adapted to the printing plate cylinder. When the printing plate cylinder is working, the product passes over the surface of the printing plate cylinder, and the pressure roller also presses on the product. The interaction between the pressure roller and the printing plate cylinder makes the pattern printed on the product by the printing plate cylinder clearly visible, improving the printing quality of the product, providing convenience for the user's work. At the same time, the user can hold the adjusting grip and flip the movable frame upward, which can drive the pressure roller to flip upward and leave the printing plate cylinder. In this way, the user will have a larger operating space when pulling and laying the plastic packaging, providing convenience for the user's packaging laying work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 It is a schematic diagram of the partial three-dimensional structure decomposition of the present utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure assembly of the fuel injector;

[0024] Figure 4 Schematic assembly diagram of the three-dimensional structure of the baffle

[0025] Figure 5 Schematic bottom view of the three-dimensional structure of the baffle

[0026] In the figure: 1. Base, 2. Guide rail, 3. Slide block, 4. Connecting block, 5. Pin, 6. Rotating rod, 7. First gear, 8. Driving motor, 9. Second gear, 10. Baffle, 11. Injector, 12. Spring plate, 13. Card hole, 14. Protection plate, 15. Printing plate roller, 16. Frame, 17. Bracket, 18. Movable frame, 19. Mounting frame, 20. Pressing roller, 21. Adjusting grip Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying Figures 1-5 , in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0028] A printing machine with an anti-centrifugal printing plate roller, including a base 1, the bottom of the inner side of the base 1 is fixedly connected with a guide rail 2, the surface of the guide rail 2 is slidably installed with a slide block 3, one side of the slide block 3 is fixedly connected with a connecting block 4, the inner side of the connecting block 4 is fixedly connected with a pin 5, one end of the inner side of the base 1 is rotatably installed with a rotating rod 6 adapted to the connecting block 4, the surface of the rotating rod 6 is provided with a spiral groove adapted to the pin 5, one end of the rotating rod 6 penetrates to the outside of the base 1, one side of the surface of the rotating rod 6 is fixedly installed with a first gear 7, the top of the slide block 3 is fixedly installed with a baffle 10, and symmetrically arranged injectors 11 are penetrated through the surface of the baffle 10.

[0029] The specific usage process is as follows: When working, start the driving motor 8. The driving motor 8 is a stepper motor. Since the stepper motor can rotate forward and backward, it can meet the working requirements. The driving motor 8 drives the second gear 9 to rotate. The second gear 9 drives the first gear 7 to rotate through a chain. The first gear 7 drives the rotating rod 6 to rotate. As the rotating rod 6 rotates, the spiral groove on the rotating rod 6 will also change accordingly, thereby driving the pin 5 to move linearly. Then the rotating rod 6 can drive the connecting block 4 to move linearly through the pin 5. The connecting block 4 drives the slider 3 to slide on the guide rail 2. The slider 3 drives the baffle 10 to move linearly. At the same time, the injector 11 installed on the baffle 10 will also move accordingly. Among them, when working, start the driving motor 8. The driving motor 8 drives the second gear 9 to rotate. The second gear 9 drives the first gear 7 to rotate through a chain. The first gear 7 drives the rotating rod 6 to rotate, thereby realizing driving the baffle 10 to move for work and ensuring the normal progress of the oiling work on the plate cylinder, providing convenience for the user's work. The baffle 10 is arranged in a semi-wrapped state around the printing plate cylinder 15, and there is a certain gap between the inner wall of the baffle 10 and the surface of the printing plate cylinder 15, so as to leave enough working space for the spraying work of the injector 11 and prevent the end of the injector 11 from touching the printing plate cylinder 15 and being damaged. At this time, the baffle 10 starts to move from the starting position, that is, from one end of the printing plate cylinder 15 to the other end of the printing plate cylinder 15. The injector 11 continuously sprays lubricating oil during the movement. The baffle 10 can also prevent the oil from splashing. That is to say, when the injector 11 sprays oil, the centrifugal force generated by the rotation of the printing plate cylinder 15 will throw the oil away. The thrown oil will be caught and stored by the baffle 10. At the same time, the printing plate cylinder 15 also rotates inside the baffle 10, and the oil inside the baffle 10 will be carried up again. In the area where the baffle 10 passes, the oil on the surface of the printing plate cylinder 15 has been evenly sprayed, and at the rotation speed of the printing plate cylinder 15, the oil will no longer be thrown away. It should be noted that to achieve the above purpose, it is necessary to control the rotation speed of the printing plate cylinder 15 within a suitable range, which is determined according to the actual situation. After spraying the oil on the surface of the printing plate cylinder 15, the driving motor 8 drives the baffle 10 to move back to the original position and is positioned under the action of the spring piece 12. The spring piece 12 itself has elasticity. When the slider 3 moves, the spring piece 12 will automatically snap into the card hole 13. As the slider 3 continues to move, the spring piece 12 will move out of the card hole 13 again. When the card hole 13 aligns with the next spring piece 12 again, the spring piece 12 will snap into the card hole 13 again to realize the positioning of the slider 3, ensure the stability of the slider 3 and the baffle 10 after positioning, and also ensure the stability of the baffle 10 and the injector 11 after resetting, providing convenience for the user's work. The protection plate 14 is located above the guide rail 2 and also below the printing plate cylinder 15, and is used for blocking and protecting.Prevent foreign objects from getting stuck on the rotating rod 6, ensure that the rotating rod 6 can rotate and work normally, provide convenience for the user's work, and at the same time will not affect the normal movement of the slider 3. The pressure roller 20 is adapted to the printing plate roller 15. When the printing plate roller 15 is working, the product passes over the surface of the printing plate roller 15, and the pressure roller 20 will also press on the product. Moreover, the pressure roller 20 and the printing plate roller 15 interact with each other, making the pattern printed on the product by the printing plate roller 15 clearly visible, improving the printing quality of the product, providing convenience for the user's work, and at the same time the user can hold the adjusting grip 21 and flip the movable frame 18 upward, and then be able to drive the pressure roller 20 to flip upward and leave the printing plate roller 15. In this way, the user will have a larger operating space when pulling and laying the plastic packaging, providing convenience for the user's packaging and laying work.,

[0030] Therefore, a structural design of arranging a baffle around the plate roller is adopted. While spraying lubricating oil on the plate roller, the baffle moves along with it. Even if the rotating plate roller throws off the oil liquid, it will fall into the baffle and then be carried away again by the rotating plate roller, thus realizing continuous repeated oil spraying, ensuring the uniformity of the oil liquid on the surface of the plate roller, preventing the centrifugal force generated by the plate roller from throwing off the oil liquid, reducing the friction between the plastic packaging and the plate roller, avoiding damage to the plastic packaging, and providing convenience for the user's work.,

[0031] One side of the base 1 is fixedly installed with a driving motor 8, and the output shaft of the driving motor 8 is fixedly installed with a second gear 9, and the second gear 9 is connected to the first gear 7 through a chain drive.

[0032] Specifically, the settings of the first gear 7, the driving motor 8 and the second gear 9. When working, start the driving motor 8, the driving motor 8 will drive the second gear 9 to rotate, the second gear 9 will drive the first gear 7 to rotate through the chain, and the first gear 7 will drive the rotating rod 6 to rotate, so as to realize driving the baffle 10 to move during work, ensure the normal progress of the oiling work on the plate roller, and provide convenience for the user's work.,

[0033] The top of the guide rail 2 is fixedly connected with spring pieces 12 distributed at equal intervals, and card holes 13 adapted to the spring pieces 12 are opened at the top inside the slider 3.

[0034] Specifically, the settings of the spring pieces 12 and the card holes 13. The spring pieces 12 themselves are elastic. When the slider 3 moves, the spring pieces 12 will automatically snap into the card holes 13. As the slider 3 continues to move, the spring pieces 12 will move out of the card holes 13 again. When the card holes 13 are aligned with the next spring piece 12 again, this spring piece 12 will snap into the card holes 13 again to realize the positioning of the slider 3, ensure the stability of the slider 3 and the baffle 10 after positioning, and also ensure the stability of the baffle 10 and the injector 11 after resetting, providing convenience for the user's work.,

[0035] A protective plate 14 is fixedly connected to the inner side of the base 1 and is located above the guide rail 2, and the slider 3 is slidably installed inside the protective plate 14.

[0036] Specifically, the protective plate 14 is provided. The protective plate 14 is located above the guide rail 2 and also below the printing plate roller 15, and is used to play a role in blocking and protecting, preventing foreign objects from getting stuck on the rotating rod 6, ensuring that the rotating rod 6 can rotate and work normally, providing convenience for the user's work, and not affecting the normal movement of the slider 3 at the same time.

[0037] A printing plate roller 15 is rotatably installed on the inner side of the base 1 and is located above the protective plate 14. A stepping motor is fixedly installed on one side of the base 1, and the output shaft of the stepping motor penetrates into the interior of the base 1 and is fixedly connected to the printing plate roller 15.

[0038] Specifically, with the setting of the printing plate roller 15 and the stepping motor, when working, the stepping motor is started to drive the printing plate roller 15 to rotate. The plastic packaging passes through the surface of the printing plate roller 15, and then in cooperation with the pressure roller 20, the pattern that meets the composite requirements can be printed on the plastic packaging, ensuring the normal operation of the printing machine and the normal processing of the plastic packaging, and providing convenience for the user's work.

[0039] Both sides of the base 1 are fixedly connected with a frame 16, and a bracket 17 is fixedly installed on the outer side of the frame 16.

[0040] Specifically, with the setting of the frame 16 and the bracket 17, the frame 16 is installed on both sides of the base 1 to play a role in supporting and stabilizing the base 1, ensuring the stability of the printing plate roller 15 during work, enabling the printing plate roller 15 to always fit on the surface of the product, improving the quality of plastic packaging printing, and providing convenience for the user's work.

[0041] The top of the inner side of the bracket 17 is movably installed with a movable frame 18. An installation frame 19 is fixedly installed on the inner side of the movable frame 18. A pressure roller 20 adapted to the printing plate roller 15 is rotatably installed between the two installation frames 19. An adjustment grip 21 is fixedly installed on one side of the movable frame 18.

[0042] Specifically, the movable frame 18, the mounting frame 19, the pressure roller 20 and the adjusting grip 21 are provided. The pressure roller 20 is adapted to the printing plate roller 15. When the printing plate roller 15 is working, the product passes over the surface of the printing plate roller 15, and the pressure roller 20 also presses on the product. The pressure roller 20 and the printing plate roller 15 interact with each other, making the pattern printed on the product by the printing plate roller 15 clearly visible, improving the printing quality of the product, providing convenience for the user's work, and at the same time, the user can hold the adjusting grip 21 and turn the movable frame 18 upwards, thereby being able to drive the pressure roller 20 to turn upwards and leave the printing plate roller 15. In this way, the user will have a larger operating space when pulling and laying the plastic packaging, providing convenience for the user's packaging and laying work.

[0043] It should be noted that a large number of mature technologies support the functions to be realized by each hardware in the present utility model, which belong to the prior art. The essence of the present utility model lies in optimizing the combination of the existing hardware and its connection mode for a specific application occasion to meet the adaptation requirements in the specific application occasion and solve the problems raised in the background art (without involving the improvement of the software inside the hardware).

[0044] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A printing press with an anti - centrifugal printing plate cylinder, comprising a base (1), characterized in that: At the bottom inside the base (1), a guide rail (2) is fixedly connected. A slider (3) is slidably mounted on the surface of the guide rail (2). On one side of the slider (3), a connecting block (4) is fixedly connected. Inside the connecting block (4), a latch (5) is fixedly connected. At one end inside the base (1), a rotating rod (6) adapted to the connecting block (4) is rotatably mounted. A spiral groove adapted to the latch (5) is formed on the surface of the rotating rod (6). One end of the rotating rod (6) penetrates to the outside of the base (1). On one side of the surface of the rotating rod (6), a first gear (7) is fixedly mounted. On the top of the slider (3), a baffle plate (10) is fixedly mounted. Symmetrically arranged fuel injectors (11) are arranged through the surface of the baffle plate (10).

2. The printing press with an anti-centrifugal printing plate cylinder according to claim 1, characterized in that: On one side of the base (1), a driving motor (8) is fixedly mounted. On the output shaft of the driving motor (8), a second gear (9) is fixedly mounted. The second gear (9) is connected to the first gear (7) by a chain drive.

3. The printing press with an anti-centrifugal printing plate cylinder according to claim 2, characterized in that: On the top of the guide rail (2), equally spaced spring pieces (12) are fixedly connected. Inside the slider (3), at the top, a card hole (13) adapted to the spring piece (12) is formed.

4. A printing press with a centrifugal force-proof printing plate cylinder according to claim 3, characterized in that: Inside the base (1), a protection plate (14) located above the guide rail (2) is fixedly connected. The slider (3) is slidably mounted inside the protection plate (14).

5. A printing press with a centrifugal force-proof printing plate cylinder according to claim 4, characterized in that: Inside the base (1), a printing plate roller (15) located above the protection plate (14) is rotatably mounted. On one side of the base (1), a stepping motor is fixedly mounted. The output shaft of the stepping motor penetrates to the inside of the base (1) and is fixedly connected to the printing plate roller (15).

6. A printing press with a centrifugal force-resistant printing plate cylinder according to claim 5, characterized in that: On both sides of the base (1), a frame (16) is fixedly connected. On the outside of the frame (16), a bracket (17) is fixedly mounted.

7. A printing press with a centrifugal force-proof printing plate cylinder according to claim 6, characterized in that: Inside the bracket (17), at the top, a movable frame (18) is movably mounted. Inside the movable frame (18), a mounting frame (19) is fixedly mounted. Between the two mounting frames (19), a pressure roller (20) adapted to the printing plate roller (15) is rotatably mounted. On one side of the movable frame (18), an adjusting grip (21) is fixedly mounted.