Medical infusion package printing device

Abstract

This utility model discloses a medical infusion packaging printing device, belonging to the field of printing technology. Along the film material conveying direction, it is sequentially equipped with an unwinding assembly, a web guiding assembly, a corona discharge assembly, a color matching roller assembly, and a buffer assembly. The color matching roller assembly is used for multi-color overprinting on the film material, and the buffer assembly is used to temporarily and dynamically store the film material by adjusting its output speed. This utility model provides a medical infusion packaging printing device that can achieve multi-color overprinting and form clear and stable graphic markings during continuous film material conveying. Simultaneously, the buffer assembly dynamically adjusts the film material output speed to achieve temporary storage, ensuring continuous operation even during roll changes or malfunctions, reducing downtime. The device can be used for online production and occupies little space, thus significantly improving its applicability.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, and more specifically, to a medical infusion packaging printing device. Background Technology

[0002] In the pharmaceutical industry, infusion bags typically require printing of markings, instructions for use, and other relevant information on their surfaces. Currently, the printing of infusion bags primarily employs thermal transfer methods, including hot stamping and heat transfer printing. Hot stamping typically involves heating a metal plate and applying pressure to transfer the image from a ribbon to the surface of the infusion bag; heat transfer printing relies on a thermal printhead to melt ink and transfer it onto the substrate surface. These methods achieve basic image transfer and are widely used in mass production.

[0003] However, the aforementioned existing technologies still have certain shortcomings in practical applications. On the one hand, hot stamping or heat transfer printing can usually only achieve single-color or limited color combinations, making it difficult to meet the needs of multi-color overprinting. In scenarios requiring high precision and multi-color overlay, the printing effect is often limited. On the other hand, heat transfer printing has high requirements for the heat resistance of the substrate. When encountering thin-walled or heat-resistant infusion bag materials, it is easy to cause substrate deformation or affect product quality. At the same time, the transfer accuracy is easily affected by temperature and pressure control, resulting in misregistration and color distortion. Summary of the Invention

[0004] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, the embodiments of this utility model propose a medical infusion packaging printing device to achieve high-precision, multi-color overprinting, and to dynamically buffer and temporarily store the film material during the printing process, thereby improving production stability and printing quality.

[0005] The technical solution adopted by this utility model is: to provide a medical infusion packaging printing device, which is provided in sequence along the film material conveying direction with an unwinding assembly, a correction assembly, a corona assembly, a color printing roller assembly and a buffer assembly, wherein the color printing roller assembly is used to perform multi-color printing on the film material, and the buffer assembly is used to achieve temporary dynamic storage of the film material by adjusting the output speed of the film material.

[0006] By adopting the above technical solution, this utility model has the following beneficial effects: 1. During the continuous conveying of the film material, multi-color printing (such as three-color or five-color) is achieved through the color printing roller assembly. Different colors are superimposed in sequence to form clear and layered graphic markings, thereby significantly improving printing accuracy and visual effect. 2. The buffer component can dynamically adjust the output speed of the film material, enabling temporary dynamic storage of the film material during the printing process; 3. The printing unit can be directly connected to other equipment to achieve automated linkage of the production line, significantly improving production efficiency. At the same time, this unit is a miniature printing device, occupying little space, making it suitable for flexible arrangement in production environments with limited space, further enhancing the applicability of the equipment and the compactness of the production line layout; 4. After adding a buffer component to the printing press, the full-cycle mode is switched to intermittent output, and the printing press operating speed is adjusted to ensure continuous operation of the production line; 5. During roll changing or fault handling, the buffer component's ability to process film material at the back end weakens. The buffer component delays film material output by increasing its dynamic storage capacity, thus achieving temporary dynamic storage of film material along the conveying direction. After the fault is recovered or the roll is changed, the buffer component reduces its dynamic storage capacity and resumes normal output. 6. The dynamic storage capacity setting can ensure that the membrane material is delayed in the conveying direction while still maintaining continuous conveying, minimizing downtime and ensuring the stability and continuity of the production process.

[0007] According to one embodiment of this utility model, the buffer assembly includes multiple fixed guide rollers and multiple movable guide rollers. The movable guide rollers can move towards or away from the fixed guide rollers to adjust the amount of film stored. The film is alternately conveyed between the fixed guide rollers and the movable guide rollers. By increasing the distance between the fixed guide rollers and the movable guide rollers, the dynamic storage capacity of the buffer assembly can be increased, thereby delaying the film conveying at the output end. Correspondingly, by decreasing the distance, the dynamic storage capacity can be reduced, allowing the film output to return to normal speed. This structure can flexibly adjust the dynamic storage capacity of the film according to the needs of production conditions, providing temporary dynamic buffering of the film during roll changes or fault handling, ensuring continuous operation of the production line, and promptly reducing the storage capacity after resuming normal production to maintain stable film output.

[0008] According to one embodiment of the present invention, the buffer component includes a slide rail and a slider, wherein the slide rail is used to guide the slider to slide.

[0009] According to one embodiment of this utility model, the movable guide roller is mounted on the slider. By mounting the movable guide roller on the slider and utilizing the guiding effect of the slide rail, the movable guide roller can move smoothly along a predetermined trajectory, thereby ensuring the stability and accuracy of the movement process when adjusting the distance between the fixed guide roller and the movable guide roller. This structure not only improves the reliability of dynamic storage adjustment but also reduces the shaking and offset during the movement of the guide roller, further ensuring the smoothness of film material delivery and the stability of printing registration.

[0010] According to one embodiment of this utility model, a coding component is also included. The coding component is disposed between the color printing roller assembly and the buffer assembly, and is used for printing on the film surface. By introducing the coding component into the printing device, the device can simultaneously perform multi-color printing and, in conjunction with the coding curing device, achieve real-time printing of unique variable QR codes and barcodes. This design not only achieves accurate identification of product information but also establishes a complete traceability system. It allows for real-time tracking of product production processes, process parameters, and quality information through a database management system, thereby significantly improving production management efficiency. Simultaneously, the coding component further enhances the anti-counterfeiting performance of the product, avoiding security risks caused by tampering or counterfeiting of packaging information.

[0011] According to one embodiment of the present invention, at least one traction component is further included, which is used to drive the film material conveying. This component can ensure stable movement of the film material between different processes and avoid printing misalignment caused by speed differences.

[0012] According to one embodiment of this utility model, a tension sensor is provided between the corona assembly and the color printing roller assembly. By detecting the film tension in real time, the transmission status can be dynamically monitored, avoiding printing deviations caused by uneven tension.

[0013] According to one embodiment of the present invention, the color printing roller assembly includes a bottom roller and multiple printing rollers, the multiple printing rollers corresponding to different color groups, and arranged in order from light to dark along the film output direction.

[0014] According to one embodiment of this invention, the bottom roller and / or the printing roller are driven by a variable speed drive assembly to match the film output speed of the buffer assembly. This solution ensures that the printing speed is consistent with the buffer adjustment, avoiding misregistration or color shift.

[0015] According to one embodiment of this utility model, the printing roller is connected to a cylinder. The cylinder drives the printing roller to move towards or away from the bottom roller, allowing the printing roller to idle and evenly apply ink before resetting for printing. When the printing press is restarted after a shutdown, the cylinder drives the printing roller to lift and idle, allowing ink to evenly adhere to its surface. It then resets and engages with the bottom roller for printing. This structure effectively avoids printing blurring and ink marks caused by start-up and shutdown processes, thus ensuring the clarity and consistency of the printed pattern and significantly improving the stability of printed product quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the printing apparatus in an embodiment of the present invention.

[0018] Figure 2 This is a front view of the printing apparatus in an embodiment of the present invention.

[0019] Figure 3 This is a front view of the unwinding section of the printing apparatus in an embodiment of this utility model.

[0020] Figure 4 This is a perspective view of the multi-color printing section of the printing apparatus in an embodiment of this utility model.

[0021] Figure 5 This is a schematic diagram of the color printing roller assembly in an embodiment of this utility model.

[0022] Figure 6 This is a rear view of the printing apparatus in an embodiment of the present invention.

[0023] Explanation of the labels in the diagram: 1. Unwinding assembly; 2. Web guiding assembly; 3. Corona discharge assembly; 4. Traction assembly; 5. Color printing roller assembly; 6. Inkjet printing assembly; 7. Tension sensor; 8. Film material; 9. Buffer assembly; 10. Magnetic powder brake; 11. First speed change drive assembly; 51. Bottom roller; 52. Printing roller; 53. Anilox roller; 54. Ink transfer roller; 55. Second speed change drive assembly; 56. Third speed change drive assembly; 57. Doctor blade; 58. Cylinder; 59. Guide rail; 91. Slide rail; 92. Slider; 93. Movable guide roller; 94. Fixed guide roller. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Example

[0025] like Figure 1-6As shown in this embodiment, a medical infusion packaging printing device is disclosed, which is provided with an unwinding assembly 1, a correction assembly 2, a corona discharge assembly 3, a color printing roller assembly 5, a coding assembly 6, and a buffer assembly 9 along the conveying direction of the film material 8. The unwinding assembly 1 is used to support and unwind the film material 8, providing a continuous substrate for subsequent printing; the correction assembly 2 is used to detect the conveying trajectory of the film material 8 and correct the deviation by adjusting the guide angle, so that the film material 8 is kept on the specified conveying path; the corona discharge assembly 3 is used to perform corona treatment on the surface of the film material 8 to increase the adhesion of the film material 8 and improve the bonding strength between the ink and the substrate; the color printing roller assembly 5 is used to perform multi-color printing of three, five, or more colors on the surface of the film material 8 in sequence, and achieve high-precision printing of complex patterns and text through the superposition of multi-color inks; the coding assembly 6 is used to print variable QR codes, barcodes, or batch information on the surface of the film material 8; the buffer assembly 9 is used to achieve temporary dynamic storage of the film material 8 by adjusting the output speed of the film material 8, thereby coordinating the speed difference between the preceding and following processes and ensuring stable and continuous production.

[0026] Furthermore, combined Figure 3 As shown, the buffer assembly 9 includes four fixed guide rollers 94 and three movable guide rollers 93. During transport, the film material 8 is sequentially wound between the fixed guide rollers 94 and the movable guide rollers 93, forming an alternating path. The movable guide rollers 93 can move closer to or further away from the fixed guide rollers 94 to change the relative distance between them. When it is necessary to increase the dynamic storage capacity of the film material 8, the movable guide rollers 93 move away from the fixed guide rollers 94, lengthening the path of the film material 8; when it is necessary to reduce the dynamic storage capacity, the movable guide rollers 93 move closer to the fixed guide rollers 94, shortening the path of the film material 8. Thus, the buffer assembly 9 can temporarily store and release the film material 8 according to changes in production status, thereby ensuring the continuous operation of the printing press and subsequent processes.

[0027] Furthermore, the buffer assembly 9 includes a slide rail 91 and a slider 92. The slide rail 91 is set along the conveying direction of the membrane material 8 and is used to guide the slider 92 to slide along a specified trajectory. The movable guide roller 93 is mounted on the slider 92. By moving the slider 92 on the slide rail 91, the position of the movable guide roller 93 can be smoothly adjusted, thereby achieving precise changes in the path of the membrane material 8 and making the dynamic storage function of the buffer assembly 9 more reliable.

[0028] Specifically, in combination Figure 4As shown, the color printing roller assembly 5 includes a base roller 51 and multiple printing rollers 52. Taking five-color printing as an example, the five printing rollers 52 are arranged at intervals around the outer periphery of the base roller 51. Each printing roller 52 is correspondingly equipped with an anilox roller 53 and an ink transfer roller 54. After the anilox roller 53 removes excess ink from its surface by a doctor blade 57, it evenly transfers the ink to the corresponding printing roller 52. The base roller 51 and the multiple printing rollers 52 cooperate sequentially to achieve the layering of five colors of ink on the surface of the film material 8, ultimately forming a clear and distinct color pattern.

[0029] Furthermore, combined Figure 5-6 As shown, the bottom roller 51 is driven to rotate by the first speed-changing drive assembly 11, the multiple printing rollers 52 are driven by the second speed-changing drive assembly 55 respectively, and the anilox roller 53 is driven by the third speed-changing drive assembly 56. The first speed-changing drive assembly 11, the second speed-changing drive assembly 55, and the third speed-changing drive assembly 56 are all composed of servo motors. By adjusting the speed of the servo motors, the speed of the corresponding rollers is changed, ensuring speed synchronization and positional accuracy during multi-color printing. Other alternative driving methods can also be used, such as stepper motors, pneumatic drive devices, or hydraulic drive devices.

[0030] Furthermore, the printing roller 52 is connected to a cylinder 58, which drives the printing roller 52 to move in a direction away from or towards the bottom roller 51. Before the printing press starts, the printing roller 52 is first lifted by the cylinder 58 and idled, allowing ink to be evenly applied to its surface. After ink application is complete, the cylinder 58 pushes the printing roller 52 back to its original position, where it cooperates with the bottom roller 51 for printing. This design avoids ink marks or blurring caused by the start and stop of the printing press, ensuring the clarity and stability of the printed pattern.

[0031] Specifically, in combination Figure 6 As shown, the unwinding assembly 1 includes an air shaft (not shown) and a magnetic powder brake 10. The air shaft is used to fix the film roll. During operation, compressed air is injected into the air shaft, causing it to expand and firmly clamp the inner hole of the film roll. The magnetic powder brake 10 provides a stable and controllable initial tension for the unwinding process, preventing the film material 8 from being too loose or too tight, thereby ensuring that the film material 8 maintains appropriate tension when entering subsequent processes.

[0032] Furthermore, the printing apparatus is equipped with a tension sensor 7, preferably a cantilever tension sensor 7, with a guide roller at the cantilever position. The tension change generated when the film material 8 passes through the guide roller is detected by the sensor and transmitted to the control system to realize real-time monitoring and adjustment of the conveying tension.

[0033] Furthermore, combining Figure 1As shown, the printing device also includes a coding component 6, which is located between the color printing roller assembly 5 and the buffer assembly 9. It uses UV inkjet printing to print variable data on the surface of the film material 8 and achieves rapid curing of the ink through a UV curing device.

[0034] In this embodiment, the working process of the medical infusion packaging printing device is as follows: First, the membrane roll is fixed by the air shaft in the unwinding assembly 1. During operation, compressed air is injected into the air shaft to make it expand, thereby firmly clamping the inner hole of the membrane roll. At the same time, the magnetic powder brake 10 provides a stable initial tension to ensure that the membrane material 8 maintains appropriate tension during the unwinding process.

[0035] Secondly, during the conveying process, the correction component 2 monitors the edge position of the film material 8 in real time through photoelectric sensors. When a deviation is detected, it automatically adjusts to ensure that the film material 8 always runs along the center position of the production line, thus avoiding misregistration of multicolor printing caused by the deviation of the film material 8.

[0036] Then, after the film material 8 enters the corona treatment device of the corona component 3, the air is ionized by high-frequency high-voltage discharge, generating a corona effect, which effectively increases the surface energy of the film material 8 and enhances its adhesion to the ink. The corona intensity is set to a standard value that allows the surface tension of the treated film material 8 to meet printing requirements.

[0037] Furthermore, when the membrane material 8 passes through the tension sensor 7, it can provide a tension feedback signal in real time. The control system adjusts the rotation speed of the traction component 4 and the first speed change drive component 11 according to the feedback signal to achieve stable tension control.

[0038] In the five-color printing process, each color group is equipped with an independent registration system, and the registration sequence is from light to dark. The adjustment steps for the first color are as follows: the anilox roller 53 assembly is actuated by the cylinder 58 to make it fit against the printing roller 52, and the anilox roller 53 supplies ink evenly to the printing roller 52. Then, the screw below is adjusted to control the pressure between the printing roller 52 and the film 8, so that the printed pattern is clearly displayed. The adjustment of the second color requires precise calibration with the position of the first color, the third color requires calibration with the positions of the first and second colors, the fourth color requires calibration with the first three colors, and the fifth color requires calibration with the first four colors. The adjustment method is the same as that of the first color, ensuring the registration accuracy step by step.

[0039] The printed film material 8 enters the coding assembly 6. The coding assembly 6 uses a UV inkjet system to print unique QR codes, barcodes, batch numbers, and other variable data information. It is then rapidly cured under the action of a UV curing device to ensure the clarity and durability of the coding.

[0040] Subsequently, the membrane material 8 enters the buffer component 9 for buffer adjustment. If the backend processing capacity decreases, the buffer component 9 automatically increases the dynamic storage capacity to delay output; when the processing capacity recovers, the buffer component 9 decreases the dynamic storage capacity to ensure the continuity and stability of the entire line operation.

[0041] Finally, when the printing press is restarted after a period of downtime, upon receiving the start command, cylinder 58 actuates first, lifting the printing roller 52 to a safe position away from the bottom roller 51 and initiating idle rotation. During idle rotation, ink is evenly applied to the surface of the printing roller 52. After reaching the preset number of rotations, the printing roller 52 precisely returns to the printing position, and formal printing begins. This avoids ink marks or blurring during start-up and shutdown, ensuring stable printing quality.

[0042] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A medical infusion packaging printing device, characterized in that: Along the conveying direction of the film material (8), there are sequentially arranged an unwinding assembly (1), a correction assembly (2), a corona assembly (3), a color printing roller assembly (5), and a buffer assembly (9). The color printing roller assembly (5) is used to perform multi-color printing on the film material (8), and the buffer assembly (9) is used to achieve temporary dynamic storage of the film material (8) by adjusting the output speed of the film material (8).

2. The medical infusion packaging printing device according to claim 1, characterized in that: The buffer assembly (9) includes a plurality of fixed guide rollers (94) and a plurality of movable guide rollers (93), the movable guide rollers (93) being able to move toward or away from the fixed guide rollers (94) to adjust the amount of film (8) stored.

3. The medical infusion packaging printing device according to claim 2, characterized in that: The buffer component (9) includes a slide rail (91) and a slider (92), the slide rail (91) being used to guide the slider (92) to slide.

4. The medical infusion packaging printing device according to claim 3, characterized in that: The movable guide roller (93) is mounted on the slider (92).

5. The medical infusion packaging printing device according to claim 1, characterized in that: It also includes a coding component (6), which is located between the color printing roller assembly (5) and the buffer assembly (9) for printing on the surface of the film material (8).

6. The medical infusion packaging printing device according to claim 1, characterized in that: It also includes at least one traction component (4) for driving the membrane material (8) to be transported.

7. The medical infusion packaging printing device according to claim 1, characterized in that: A tension sensor (7) is provided between the corona assembly (3) and the color printing roller assembly (5).

8. A medical infusion packaging printing device according to claim 1, characterized in that: The color printing roller assembly (5) includes a bottom roller (51) and multiple printing rollers (52), which correspond to different color groups and are arranged in order from light to dark along the output direction of the film material (8).

9. A medical infusion packaging printing device according to claim 8, characterized in that: The bottom roller (51) and / or the plate roller (52) are driven by a variable speed drive assembly to match the output speed of the film material (8) of the buffer assembly (9).

10. A medical infusion packaging printing device according to claim 8, characterized in that: The printing roller (52) is connected to a cylinder (58), which drives the printing roller (52) to move closer to or further away from the bottom roller (51), so that the printing roller (52) can be reset for printing after idling and uniformly applying ink.

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