A gravure printing machine suitable for security printing

Abstract

This utility model provides a gravure printing machine suitable for anti-counterfeiting printing, belonging to the technical field of gravure printing machines. It includes a cleaning assembly, comprising an adjustable base mounted on top of a base plate, a fixed frame mounted on top of the adjustable base, a fixed plate inside the fixed frame, a fixed groove at the bottom of the fixed plate, a damping spring inside the fixed groove, a support frame at the bottom of the damping spring, and a scraper rotatably mounted inside the support frame. A second spring is mounted on one side of the scraper, and the other side of the second spring is located inside the support frame. The adjustable base allows adjustment of the position of the fixed frame to adapt to different working requirements. The fixed frame provides support for the internal fixed plate, and the fixed groove at the bottom of the fixed plate is used to install the damping spring. The damping spring buffers pressure, allowing the support frame and scraper to better conform to the part to be cleaned. The support frame is used to install the scraper and the second spring, which ensures the scraper remains in contact with the part to be cleaned at all times.

Description

Technical Field

[0001] This utility model relates to the field of gravure printing technology, and in particular to a gravure printing machine suitable for anti-counterfeiting printing. Background Technology

[0002] The function of gravure printing machines is to achieve accurate presentation of anti-counterfeiting elements and increase the difficulty of replication through high-precision gravure engraving and printing technology. It can clearly print variable data on substrates such as paper and film. At the same time, thanks to the unique characteristics of gravure printing—thick ink layers and three-dimensional textures—it enhances the visual recognizability and physical tamper-proof performance of labels, providing anti-counterfeiting guarantees for products in the tobacco, alcohol, pharmaceutical, and invoice sectors, and helping to combat counterfeiting and other improper activities.

[0003] Existing gravure printing machines lack the ability to quickly adjust and efficiently clean when switching between different printing materials. This not only leads to long material switching intervals and reduced production efficiency, but may also damage the integrity and clarity of the printed pattern when printing on materials that have not been properly cleaned. In particular, when printing high-precision anti-counterfeiting labels, problems such as misregistration and uneven ink layer are likely to occur, affecting the anti-counterfeiting effect and product quality. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a gravure printing machine suitable for anti-counterfeiting printing. To achieve the above objective, this utility model adopts the following technical solution: A gravure printing machine suitable for anti-counterfeiting printing includes at least a base plate and a cleaning assembly. The cleaning assembly includes an adjusting base disposed on the top of the base plate, a fixing frame disposed on the top of the adjusting base, a fixing plate disposed inside the fixing frame, a fixing groove disposed at the bottom of the fixing plate, a damping spring disposed inside the fixing groove, a support frame disposed at the bottom of the damping spring, a scraper rotatably disposed inside the support frame, a second spring sheet disposed on one side of the scraper, and the other side of the second spring sheet disposed inside the support frame.

[0005] Furthermore, a connecting roller is provided on the inner side of the fixing frame, and the scraper is in contact with the surface of the connecting roller.

[0006] The beneficial effects of adopting the above-mentioned further solution are: the fixed frame supports and connects the roller, and the scraper adheres to its surface to remove impurities, thereby achieving material cleaning and ensuring printing quality.

[0007] Furthermore, a feeding assembly is provided on the top of the base plate, and a support rod is also provided on the top of the base plate. A telescopic rod is provided on the top of the support rod, and a first feeding roller is provided between the telescopic rods. A slot is provided on the first feeding roller, and a first spring is provided on the first feeding roller through the slot. An expansion plate is provided on the other end of the first spring, and anti-slip pads are provided on the first feeding roller.

[0008] The beneficial effects of adopting the above-mentioned further solution are as follows: In the feeding assembly, the support rod on the base plate supports the telescopic rod at the top. The telescopic rod can be adjusted in height to adapt to different materials. The first feeding roller between them passes through the first spring in the slot, which allows the outer expansion plate to expand elastically, making it easy to place materials of different widths. The anti-slip pad on the roller increases friction and prevents the material from slipping during transportation. This can stably and efficiently transport printing materials and adapt to various specifications.

[0009] Furthermore, a drive motor is provided on one side of the first feeding roller, a fixing ring is provided on the first feeding roller, a guide rod is provided on the fixing ring, and a snap ring is provided on the other side of the guide rod away from the fixing ring.

[0010] The beneficial effects of adopting the above-mentioned further solution are: the drive motor drives the first feeding roller to rotate and feed the material, and the guide rod on the fixed ring cooperates with the snap ring to limit and guide the material, ensuring accurate and stable feeding and preventing deviation.

[0011] Furthermore, a printing assembly is provided on one side of the base plate, and a fixed outer frame is also provided on the top of the base plate. A support plate is provided inside the fixed outer frame, a second feeding roller is provided on the support plate, a printing roller is provided at the bottom of the support plate, and ventilation plates are provided on both sides of the fixed outer frame.

[0012] The beneficial effects of adopting the above-mentioned further solution are as follows: In the printing assembly, the base plate provides installation support for the fixed outer frame, the fixed outer frame forms a closed printing space, the ventilation plates on both sides can promote internal air circulation and avoid the accumulation of heat or odor during printing, the support plate inside the fixed outer frame is used to fix the second feeding roller and the printing roller, the second feeding roller receives the material conveyed by the feeding assembly and smoothly conveys it to the printing station, and the printing roller performs anti-counterfeiting printing operation on the material.

[0013] Furthermore, a drying assembly is provided on the outer side of the fixed outer frame. The drying assembly consists of a support frame provided on both sides of the fixed outer frame, an annular plate provided on the outer side of the support frame, and a fan provided between the annular plate and the support frame. The support frame is fixed to and covers the exterior of the ventilation panel on one side.

[0014] The beneficial effects of adopting the above-mentioned further solution are: in the drying assembly, the outer support frame of the fixed outer frame provides the installation base, the outer ring plate of the support frame fixes the fan, the operation of the fan accelerates the air flow, dries the printed material, and shortens the drying time.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: The adjustable base allows for adjustment of the fixed frame's position to suit different work requirements. The fixed frame provides support for the internal fixed plate, and the fixed groove at the bottom of the fixed plate is used to install a damping spring. The damping spring buffers pressure, allowing the support frame and scraper to better fit the part to be cleaned. The support frame is used to install the scraper and the second spring. The second spring ensures that the scraper always remains in contact with the part to be cleaned. During rotation, the scraper, with the help of the elasticity of the second spring, tightly adheres to and scrapes away impurities from the surface of the connecting roller, thereby effectively cleaning the connecting roller, ensuring the surface of the connecting roller is clean, and increasing the integrity of subsequent printing. Attached Figure Description

[0016] Figure 1 This is a front view of the gravure printing machine suitable for anti-counterfeiting printing according to this utility model; Figure 2 This is a side view of the gravure printing machine suitable for anti-counterfeiting printing according to the present invention; Figure 3 This is a structural diagram of the feeding assembly in the gravure printing machine for anti-counterfeiting printing according to the present invention; Figure 4 This is a structural diagram of the cleaning component in the gravure printing machine for anti-counterfeiting printing according to the present invention; Figure 5 This is a structural diagram of the printing component in the gravure printing machine for anti-counterfeiting printing described in this utility model.

[0017] Figure label: 1-Base plate; 2-Feeding assembly; 21-Support rod; 22-Telescopic rod; 23-First feeding roller; 24-Anti-slip pad; 25-Outer expansion plate; 26-First spring; 27-Fixing ring; 28-Snap-fit ​​ring; 29-Guide rod; 210-Drive motor; 3-Cleaning assembly; 31-Adjusting base; 32-Fixing frame; 33-Fixing plate; 34-Fixing groove; 35-Damping spring; 36-Support frame; 37-Second spring; 38-Scraper; 39-Connecting roller; 4-Printing assembly; 41-Fixing outer frame; 42-Support plate; 43-Second feeding roller; 44-Printing roller; 45-Ventilation plate; 5-Drying assembly; 51-Support frame; 52-Annular plate; 53-Fan. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 4 As shown, this utility model provides a technical solution: a gravure printing machine suitable for anti-counterfeiting printing, including a base plate 1, and further comprising: The cleaning component 3 includes an adjustable base 31 mounted on the top of the base plate 1. A fixing frame 32 is mounted on the top of the adjustable base 31. A fixing plate 33 is located inside the fixing frame 32. A fixing groove 34 is formed at the bottom of the fixing plate 33. A damping spring 35 is located inside the fixing groove 34. A support frame 36 is located at the bottom of the damping spring 35. A scraper 38 is rotatably mounted inside the support frame 36. A second spring piece 37 is located on one side of the scraper 38, and the other side of the second spring piece 37 is located inside the support frame 36. The adjustable base 31 can adjust the position of the fixing frame 32 to adapt to different working needs. The mounting bracket 32 ​​provides support for the internal mounting plate 33. The mounting groove 34 at the bottom of the mounting plate 33 is used to install the damping spring 35. The damping spring 35 can buffer the pressure, so that the support bracket 36 and the scraper 38 can better fit the part to be cleaned. The support bracket 36 is used to install the scraper 38 and the second spring 37. The second spring 37 can keep the scraper 38 in contact with the part to be cleaned at all times. During the rotation, the scraper 38, with the help of the elasticity of the second spring 37, tightly fits and scrapes away the impurities on the surface of the connecting roller 39, thereby achieving effective cleaning of the connecting roller 39, ensuring the cleanliness of the surface of the connecting roller 39, and increasing the integrity of subsequent printing.

[0020] Furthermore, such as Figures 1 to 3As shown: A feeding assembly 2 is provided on the top of the base plate 1, and a support rod 21 is also provided on the top of the base plate 1. A telescopic rod 22 is provided on the top of the support rod 21. A first feeding roller 23 is provided between the telescopic rods 22. The first feeding roller 23 has a slot. A first spring piece 26 is provided on the first feeding roller 23 through the slot. An expansion plate 25 is provided on the other end of the first spring piece 26. Anti-slip pads 24 are provided on the first feeding roller 23. In the feeding assembly 2, the support rod 21 on the base plate 1 supports the top telescopic rod 22. The height of the telescopic rod 22 can be adjusted to adapt to different materials. The first feeding roller 23 between them allows the expansion plate 25 to expand elastically through the first spring piece 26 in the slot, which is convenient for placing materials of different widths. The anti-slip pads 24 on the roller increase friction and prevent slippage during material conveying. This can stably and efficiently convey printing materials and adapt to various specifications.

[0021] The above solutions also have the problem of unstable printing, such as... Figure 5 As shown: In this solution, a printing assembly 4 is provided on one side of the base plate 1, and a fixed outer frame 41 is also provided on the top of the base plate 1. A support plate 42 is provided inside the fixed outer frame 41. A second feeding roller 43 is provided on the support plate 42. A printing roller 44 is provided at the bottom of the support plate 42. Ventilation plates 45 are provided on both sides of the fixed outer frame 41. In other words, the size of the ventilation plate 45 is roughly the same as the side size of the fixed outer frame 41, so as to ensure that the airflow of the ventilation plate 45 can completely affect the entire printing roller 44. In the printing assembly 4, the base plate 1 provides installation support for the fixed outer frame 41. The fixed outer frame 41 forms a closed printing space. The ventilation plates 45 on both sides can promote internal air circulation and prevent the accumulation of heat or odor during printing. The support plate 42 inside the fixed outer frame 41 is used to fix the second feeding roller 43 and the printing roller 44. The second feeding roller 43 receives the material conveyed by the feeding assembly 2 and smoothly conveys it to the printing station. The printing roller 44 performs anti-counterfeiting printing on the material.

[0022] Combination Figure 1 and Figure 5 As shown, the drying assembly 5 consists of a support frame 51 disposed on both sides of the fixed outer frame 41, an annular plate 52 disposed on the outer side of the support frame 51, and a fan 53 disposed between the annular plate 52 and the support frame 51. Furthermore, the support frame is fixed and covers the outside of the ventilation plate on one side. By placing the drying assembly 5 close to the printing assembly 4, it can promote the drying of ink on the surface of the printing material that has been coated in the printing assembly 4, and play an auxiliary role in the curing of the surface of the printing material, thereby improving the working efficiency of the equipment.

[0023] Combination such as Figures 1 to 5The working principle of this utility model is further explained in the figure. In the cleaning component 3, the adjusting base 31 adjusts the position of the fixing frame 32 to meet the requirements. The fixing frame 32 supports the fixing plate 33 and the connecting roller 39. The fixing plate 33 is equipped with a damping spring 35 through the bottom fixing groove 34. Its buffer pressure makes the support frame 36 and the scraper 38 fit against the roller. The support frame 36 is equipped with the scraper 38 and the second spring 37. The second spring 37 ensures that the scraper 38 is always in contact. The scraper 38 scrapes away the impurities of the connecting roller 39 with the elastic force, ensuring its cleanliness and improving the integrity of subsequent printing. In the feeding assembly 2, the support rod 21 on the base plate 1 supports the telescopic rod 22. The height of the telescopic rod 22 is adjusted to adapt to the material. The first feeding roller 23 causes the outer expansion plate 25 to expand elastically through the first spring piece 26 in the slot, adapting to materials of different widths. The anti-slip pad 24 increases friction and prevents slippage. The drive motor 210 drives the roller to rotate. The guide rod 29 on the fixing ring 27 cooperates with the snap ring 28 to limit and guide, ensuring accurate and stable feeding. In the printing component 4, the base plate 1 supports and fixes the outer frame 41, forming a closed space. The ventilation plates 45 on both sides promote air circulation. The support plate 42 fixes the second feeding roller 43 and the printing roller 44. The second feeding roller 43 conveys the material to the printing station, and the printing roller 44 completes the anti-counterfeiting printing. In the drying assembly 5, the outer support frame 51 of the fixed outer frame 41 provides the foundation, and the ring plate 52 fixes the fan 53. The fan 53 accelerates the airflow to dry the material, shortens the drying time, and ensures printing quality and production efficiency.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A gravure printing machine suitable for anti-counterfeiting printing, comprising at least a base plate (1), characterized in that: It also includes a cleaning component (3), which includes an adjusting base (31) set on the top of the base plate (1). A fixing frame (32) is set on the top of the adjusting base (31). A fixing plate (33) is set inside the fixing frame (32). A fixing groove (34) is opened at the bottom of the fixing plate (33). A damping spring (35) is set inside the fixing groove (34). A support frame (36) is set at the bottom of the damping spring (35). A scraper (38) is rotatably set inside the support frame (36). A second spring (37) is set on one side of the scraper (38). The other side of the second spring (37) is set inside the support frame (36).

2. The gravure printing machine suitable for anti-counterfeiting printing according to claim 1, characterized in that: The inner side of the fixing frame (32) is provided with a connecting roller (39), and the scraper (38) is in contact with the surface of the connecting roller (39).

3. The gravure printing machine suitable for anti-counterfeiting printing according to claim 1, characterized in that: The top of the base plate (1) is provided with a feeding assembly (2), and also includes a support rod (21) provided on the top of the base plate (1). The top of the support rod (21) is provided with a telescopic rod (22), and a first feeding roller (23) is provided between the telescopic rods (22). The first feeding roller (23) has a slot, and the first feeding roller (23) has a first spring piece (26) through the slot. The other end of the first spring piece (26) is provided with an expansion plate (25), and the first feeding roller (23) is provided with an anti-slip pad (24).

4. The gravure printing machine suitable for anti-counterfeiting printing according to claim 3, characterized in that: A drive motor (210) is provided on one side of the first feeding roller (23), a fixing ring (27) is provided on the first feeding roller (23), a guide rod (29) is provided on the fixing ring (27), and a snap ring (28) is provided on the other side of the guide rod (29) away from the fixing ring (27).

5. The gravure printing machine suitable for anti-counterfeiting printing according to claim 1, characterized in that: A printing assembly (4) is provided on one side of the base plate (1), and a fixed outer frame (41) is provided on the top of the base plate (1). A support plate (42) is provided inside the fixed outer frame (41). A second feeding roller (43) is provided on the support plate (42). A printing roller (44) is provided at the bottom of the support plate (42). Ventilation plates (45) are provided on both sides of the fixed outer frame (41).

6. The gravure printing machine suitable for anti-counterfeiting printing according to claim 5, characterized in that: A drying assembly (5) is provided on the outside of the fixed outer frame (41). The drying assembly (5) consists of a support frame (51) provided on both sides of the fixed outer frame (41), an annular plate (52) provided on the outside of the support frame (51), and a fan (53) provided between the annular plate (52) and the support frame (51).

7. The gravure printing machine suitable for anti-counterfeiting printing according to claim 6, characterized in that: The support frame (51) is fixed to and covers the exterior of the ventilation panel (45) on one side.

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