Gravure printing machine for packaging bag processing

By introducing hydraulic rods to control the spacing of the impression cylinders, baffles to prevent splashing, and guide plates to collect ink in a gravure printing machine for packaging bag processing, the problems of ink splashing and thickness adaptability were solved, and efficient packaging bag printing was achieved.

CN224044808UActive Publication Date: 2026-03-27JINJIANG XIANGXING PAPER PLASTIC COLOR PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-13
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In gravure printing machines, the gravure cylinder directly dips into the ink cartridge and rotates at high speed, causing ink splattering, resulting in pollution and waste. At the same time, the impression cylinder cannot be adjusted up and down, making it unable to adapt to the processing of packaging bags of different thicknesses.

Method used

A gravure printing machine for packaging bag processing was designed. The distance between the impression cylinder and the gravure cylinder is controlled by a hydraulic rod to prevent ink splashing. A baffle is used to prevent ink waste. An excess ink is collected by a guide plate. The support roller conveys the packaging bag, and the packaging bag is clamped by the movable roller and the support roller to realize the processing of packaging bags of different thicknesses.

Benefits of technology

It achieves efficient ink utilization and prevents splattering, can adapt to printing on packaging bags of different thicknesses, improves printing efficiency and reduces material waste.

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Abstract

The utility model relates to the technical field of packaging bag processing, and provides a photogravure press for packaging bag processing. A bottom plate is fixedly installed at the bottom of the machine box, an ink box is fixedly installed on the inner bottom face of the machine box, a baffle is fixedly installed in the ink box, and an ink delivery roller is rotationally installed in the ink box. And a spring is fixedly installed on the top face of the interior of the movable groove, a telescopic rod is fixedly installed on the top face of the interior of the movable groove, and fixing pieces are fixedly installed at the bottom ends of the spring and the telescopic rod. The interval between the impression cylinder and the gravure cylinder can be controlled through the hydraulic rod, so that the printing machine can print packaging bags with different thicknesses, ink splashing and ink waste can be prevented through the baffle when the drop roller rotates to dip ink, and the guide plate is fixedly installed outside the scraper, so that the printing efficiency is improved. The ink scraped by the scraper can be guided into the ink box through the flow guide plate, and waste of the ink is prevented.
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Description

Technical Field

[0001] This utility model belongs to the field of packaging bag processing technology, and specifically relates to a gravure printing machine for packaging bag processing. Background Technology

[0002] Packaging bags are bags used to package various goods, facilitating transportation and storage during production and distribution. They are widely used in daily life and industrial production. During the production process, packaging bags are typically printed to varying degrees to improve visibility and enhance aesthetics.

[0003] A known authorized patent with application number CN202421281284.1 discloses a gravure printing machine for packaging bag processing: it includes a gravure printing machine body, an ink fountain fixedly installed at the bottom of the inner cavity of the gravure printing machine body, a gravure printing roller inside the gravure printing machine body, the bottom of the gravure printing roller being located above the inner cavity of the ink fountain, an ink anti-settling mechanism being provided on the left side of the ink fountain, and an ink scraping mechanism being provided on the left side of the gravure printing roller, the ink anti-settling mechanism including a liquid pump.

[0004] However, in implementing the relevant technology, the following problems were found with the above-mentioned technical solutions: the gravure cylinder in the gravure printing machine directly dips the ink from inside the ink cartridge, and the rapid rotation of the gravure cylinder causes ink to splatter, resulting in pollution and unnecessary losses; the impression cylinder cannot be adjusted up and down, making it impossible to process packaging bags of different thicknesses. Therefore, a gravure printing machine for packaging bag processing is proposed to solve the above problems. Utility Model Content

[0005] This utility model proposes a gravure printing machine for packaging bag processing, which solves the problem in related technologies that the impression cylinder cannot be adjusted up and down and therefore cannot process packaging bags of different thicknesses.

[0006] The technical solution of this utility model is as follows: A gravure printing machine for packaging bag processing, comprising:

[0007] Chassis;

[0008] A base plate is fixedly installed at the bottom of the chassis, an ink cartridge is fixedly installed on the inner bottom surface of the chassis, a baffle is fixedly installed inside the ink cartridge, and an ink delivery roller is rotatably installed inside the ink cartridge.

[0009] A movable groove is provided on one side of the chassis. A spring is fixedly installed on the top surface inside the movable groove. A telescopic rod is fixedly installed on the top surface inside the movable groove. A fixing component is fixedly installed at the bottom end of the spring and the telescopic rod. A movable roller is rotatably installed inside the fixing component.

[0010] The inside of the case is fixedly installed with a hydraulic rod, the bottom end of the hydraulic rod is fixedly installed with a connecting piece, and the inside of the connecting piece is fixedly installed with a platen.

[0011] Preferably, the inside of the case is fixedly installed with a doctor blade, and the outside of the doctor blade is fixedly installed with a deflector.

[0012] Preferably, one side of the case is fixedly installed with a motor, and the output end of the motor is fixedly installed with a support roller.

[0013] Preferably, one side of the case is fixedly installed with a motor, and the output end of the motor is fixedly installed with a support roller.

[0014] Preferably, the inside of the case is fixedly installed with an ink delivery pipe, and one end of the ink delivery pipe is connected with an ink box.

[0015] Preferably, the number of the movable roller and the support roller is two respectively, and the movable roller is located directly above the support roller.

[0016] The working principle and beneficial effects of the utility model are as follows: the interval between the platen and the gravure roller can be controlled through the hydraulic rod, so that the printing machine can print packaging bags with different thicknesses; the ink splashing can be prevented when the ink delivery roller rotates to dip the ink, so that the ink waste is avoided; the ink scraped down by the doctor blade can be guided into the inside of the ink box through the deflector fixedly installed outside the doctor blade, so that the ink waste is avoided; the support roller can be driven to rotate when the packaging bag is conveyed through the support roller fixedly installed at the output end of the motor; the packaging bag can be clamped by the movable roller and the support roller through the spring pressing down the movable roller when the movable roller is located directly above the support roller. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be explained in further detail in combination with the drawings and specific embodiments.

[0018] Figure 1 The whole structure schematic view of the utility model is provided.

[0019] Figure 2 The whole structure schematic view of the utility model is provided. Figure 1 The local enlarged view of A is provided.

[0020] Figure 3 The sectional view of the utility model is provided.

[0021] Figure 4 The left view of the utility model is provided.

[0022] In the diagram: 1. Chassis; 2. Base plate; 3. Ink cartridge; 4. Baffle; 5. Ink delivery roller; 6. Movable groove; 7. Spring; 8. Telescopic rod; 9. Fixing component; 10. Movable roller; 11. Hydraulic rod; 12. Connecting component; 13. Impression cylinder; 14. Doctor blade; 15. Guide plate; 16. Motor; 17. Support roller; 18. Motor; 19. Gravure cylinder; 20. Ink supply tube. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Implementation

[0025] Please see Figure 1 -4. A gravure printing machine for packaging bag processing, comprising:

[0026] Chassis 1;

[0027] A base plate 2 is fixedly installed at the bottom of the chassis 1. An ink cartridge 3 is fixedly installed on the bottom surface inside the chassis 1. A baffle 4 is fixedly installed inside the ink cartridge 3. An ink delivery roller 5 is rotatably installed inside the ink cartridge 3.

[0028] A movable groove 6 is provided on one side of the casing 1. A spring 7 is fixedly installed on the top surface inside the movable groove 6. A telescopic rod 8 is fixedly installed on the top surface inside the movable groove 6. A fixing part 9 is fixedly installed at the bottom end of the spring 7 and the telescopic rod 8. A movable roller 10 is rotatably installed inside the fixing part 9.

[0029] A hydraulic rod 11 is fixedly installed inside the casing 1. A connector 12 is fixedly installed at the bottom end of the hydraulic rod 11. An impression roller 13 is fixedly installed inside the connector 12.

[0030] The technical scheme provided by the embodiment is as follows: in use, first, ink is poured into the inside of the ink box 3 through the ink delivery pipe 20, then the packaging bag to be printed is pulled into the inside of the machine box 1 from one side of the machine box 1, then the packaging bag is placed between the movable roller 10 and the supporting roller 17 by lifting the movable roller 10 upward with the hand, then the printing cylinder 13 is lifted by starting the hydraulic rod 11, then the packaging bag is passed between the printing cylinder 13 and the intaglio cylinder 19, then the printing cylinder 13 is pressed to press the packaging bag between the printing cylinder 13 and the intaglio cylinder 19, then the supporting roller 17 and the intaglio cylinder 19 are rotated by starting the motor 16 and the motor 18, so that the packaging bag is conveyed, when the intaglio cylinder 19 rotates, the ink delivery roller 5 is driven to rotate, the ink delivery roller 5 dips the ink in the inside of the ink box 3 and then the splash-proof baffle 4 blocks the splashed ink, the ink delivery roller 5 delivers the ink to the surface of the intaglio cylinder 19, then the excess ink is scraped off by the scraper 14, the excess ink returns to the inside of the ink box 3 along the flow guide plate 15, and then the ink on the intaglio cylinder 19 is printed on the packaging bag by the extrusion of the printing cylinder 13 and the intaglio cylinder 19.

[0031] Further, the scraper 14 is fixedly installed in the inside of the machine box 1, and the flow guide plate 15 is fixedly installed outside the scraper 14.

[0032] Specifically, the ink scraped off by the scraper 14 can be poured into the inside of the ink box 3 through the flow guide plate 15, so that the waste of ink is prevented.

[0033] Further, the motor 16 is fixedly installed on one side of the machine box 1, and the supporting roller 17 is fixedly installed at the output end of the motor 16.

[0034] Specifically, the supporting roller 17 can drive the packaging bag to convey when the supporting roller 17 rotates.

[0035] Further, the motor 18 is fixedly installed on one side of the machine box 1, and the intaglio cylinder 19 is fixedly installed at the output end of the motor 18.

[0036] Specifically, the intaglio cylinder 19 can print the ink on the packaging bag by being fixedly installed at the output end of the motor 18.

[0037] Further, the ink delivery pipe 20 is fixedly installed in the inside of the machine box 1, and one end of the ink delivery pipe 20 is connected with the ink box 3.

[0038] Specifically, one end of the ink delivery pipe 20 is connected with the ink box 3, so that the ink can be added into the inside of the ink box 3 through the ink delivery pipe 20.

[0039] Further, the number of the movable rollers 10 and the number of the supporting rollers 17 are both two, and the movable rollers 10 are located directly above the supporting rollers 17.

[0040] Specifically, by locating the movable roller 10 directly above the support roller 17, the movable roller 10 can be pressed down by the spring 7 to sandwich the packaging bag between the movable roller 10 and the support roller 17.

[0041] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gravure printing machine for processing packaging bags, characterized in that, Include: Case (1); The bottom of the case (1) is fixedly installed with a bottom plate (2), the inside bottom surface of the case (1) is fixedly installed with an ink cartridge (3), the inside of the ink cartridge (3) is fixedly installed with a baffle (4), and the inside of the ink cartridge (3) is rotatably installed with an ink delivery roller (5); A movable slot (6) is formed on one side of the case (1), a spring (7) is fixedly installed on the inside top surface of the movable slot (6), a telescopic rod (8) is fixedly installed on the inside top surface of the movable slot (6), the bottom ends of the spring (7) and the telescopic rod (8) are fixedly installed with a fixing piece (9), and a movable roller (10) is rotatably installed in the inside of the fixing piece (9); A hydraulic rod (11) is fixedly installed in the inside of the case (1), a connecting piece (12) is fixedly installed at the bottom end of the hydraulic rod (11), and a printing cylinder (13) is fixedly installed in the inside of the connecting piece (12).

2. The gravure printing machine for processing a packaging bag according to claim 1, characterized by: A doctor blade (14) is fixedly installed in the inside of the case (1), and a flow guide plate (15) is fixedly installed on the outside of the doctor blade (14).

3. The gravure printing machine for processing a packaging bag according to claim 1, characterized in that: A motor (16) is fixedly installed on one side of the case (1), and a support roller (17) is fixedly installed at the output end of the motor (16).

4. The gravure printing machine for processing a packaging bag according to claim 1, characterized in that: A motor (18) is fixedly installed on one side of the case (1), and a gravure cylinder (19) is fixedly installed at the output end of the motor (18).

5. The gravure printing machine for processing a packaging bag according to claim 1, characterized in that: An ink delivery pipe (20) is fixedly installed in the inside of the case (1), and one end of the ink delivery pipe (20) is connected with the ink cartridge (3).

6. The gravure printing machine for processing a packaging bag according to claim 3, characterized in that: The number of the movable roller (10) and the support roller (17) is two respectively, and the movable roller (10) is located directly above the support roller (17).

Citation Information

Patent Citations

  • Gravure printing machine for packaging bag processing

    CN222407591U