A cleaning device for medical film

Abstract

The utility model provides a kind of cleaning device for medical film, including film cleaning box, the film cleaning box upper portion is equipped with film inlet, and its upper portion two sides are oppositely equipped with air inlet;Transmission case and air cylinder are fixedly installed outside the film cleaning box, and driving motor is installed and arranged on each transmission case;Drying port is equipped on the cleaning inner box installed in the film cleaning box, and drying fan is fixedly installed outside it, and the upper conveying roller and lower conveying roller rotatably installed in the cleaning inner box are fixed with the output end of transmission case;Closed plate is slidably installed in the inner side of film cleaning box, and is fixed with the output end of air cylinder;The liquid discharge pipe mouth arranged below cleaning inner box penetrates film cleaning box;The utility model can be independently cleaned singly, and the volume is small and adapts small scene;Closed plate is driven by air cylinder to isolate dry and wet area, to avoid mutual interference;Upper conveying roller is equipped with liquid-absorbing cotton cover, to prevent scratching and efficiently remove water stain, and conveying is stable.

Description

Technical Field

[0001] This utility model belongs to the field of film cleaning technology, and in particular relates to a cleaning device for medical films. Background Technology

[0002] As a crucial medium for medical imaging diagnosis, the cleanliness of medical film directly impacts the accuracy of image observation. Currently, medical film cleaning primarily relies on two types of equipment: large-scale automated cleaning lines, suitable for batch film processing, but these are bulky, costly, and require continuous operation, making them unsuitable for the small-batch, intermittent cleaning needs of primary healthcare institutions or small laboratories; and manual cleaning tools (such as specialized wiping cloths with cleaning agents), which offer flexibility but suffer from low cleaning efficiency and are prone to scratching the film surface or leaving water stains due to improper manual operation. In particular, the photosensitive coating on the film surface is fragile, and excessive friction or incomplete cleaning can affect image quality.

[0003] In addition, the "cleaning-drying" process of existing automatic cleaning equipment is mostly designed with fixed partitions, and the cleaning zone and drying zone lack effective isolation. This causes the heat flow during the drying process to accelerate the evaporation of the cleaning solution and cause concentration fluctuations. At the same time, the water vapor generated during cleaning will also reduce the drying efficiency. Furthermore, the film conveying system mostly adopts a single roller structure, which lacks stable clamping for thin films, making it easy for conveying deviation or wrinkles to occur, further affecting the cleaning effect.

[0004] Therefore, it is essential to invent a medical film cleaning device. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a medical film cleaning device, including a film cleaning box, a film inlet, an air inlet, a transmission box, a cylinder, a drive motor, a cleaning inner box, a drying port, a drying fan, an upper conveying roller, a lower conveying roller, a sealing plate, and a drain pipe. The film cleaning box has a film inlet at the top and air inlets on both sides above it. The transmission box and the cylinder are fixedly installed on the outside of the film cleaning box, and the drive motor is installed on each transmission box. The drying port is installed on the cleaning inner box installed inside the film cleaning box, and the drying fan is fixedly installed on its outside. The upper and lower conveying rollers, which are rotatably installed inside the cleaning inner box, are fixed to the output end of the transmission box. The sealing plate is slidably installed inside the film cleaning box and fixed to the output end of the cylinder. The drain pipe is located below the cleaning inner box and extends out of the film cleaning box.

[0006] Preferably, the inner cleaning box is connected to the film inlet located above the film cleaning box, and drying ports are provided on opposite sides of the upper part of the inner cleaning box. The drying ports and the air inlet located above the film cleaning box are at the same height.

[0007] Preferably, the drying fan fixedly installed on the outer side of the upper part of the inner cleaning box corresponds to the drying port. The drying fan is located inside the film cleaning box and on one side of the upper conveyor roller.

[0008] Preferably, there are two sets of upper and lower conveying rollers, each set is arranged vertically at equal intervals and the two sets are parallel to each other. The gap between the two sets of upper and lower conveying rollers is the film conveying area, and each upper conveying roller is covered with an absorbent cotton sleeve.

[0009] Preferably, there is a gap between the upper conveying roller and the lower conveying roller that allows the two sealing plates to move laterally, and the film can smoothly transition from the upper conveying roller to the lower conveying roller. The inner cleaning box has slots through the middle of both sides that allow the sealing plates to pass through. The sealing plates can be driven by a cylinder to make lateral reciprocating motion, and the end faces of the two sealing plates on the same horizontal line can be in close contact with each other.

[0010] Preferably, the sealing plate is located above the lower conveying roller and below the upper conveying roller, and a gap can be opened between the two sealing plates to allow the film to pass through. Film cleaning fluid is located below the sealing plate, and the lower conveying roller is immersed in cleaning fluid inside the inner cleaning box.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This invention enables independent cleaning of individual films through a clamping and conveying structure using upper and lower conveying rollers, eliminating the need for batch continuous operation. The overall size of the equipment is smaller, making it suitable for scenarios with limited space and small cleaning volumes, such as primary healthcare institutions and small laboratories, thus solving the problem of poor applicability of traditional large-scale equipment.

[0012] This invention utilizes a cylinder-driven closed plate design to open the channel when the film enters the cleaning stage and close it laterally during the drying stage to form an isolation barrier. This effectively prevents the heat flow from the drying fan from affecting the stability of the cleaning fluid (such as temperature fluctuations and accelerated evaporation), while also preventing the moisture in the cleaning fluid from interfering with the drying effect. This solves the technical pain point of "mutual interference between dry and wet zones" in traditional equipment.

[0013] This invention features an upper conveyor roller covered with an absorbent cotton sleeve, which not only removes surface water stains during film lifting, reducing the drying burden, but also avoids scratching the photosensitive coating on the film surface through flexible contact. The spacing between the upper and lower conveyor rollers is adapted to the film thickness and is arranged vertically at equal intervals, ensuring smooth and wrinkle-free film conveying, thus solving the problem of easy damage to the film by manual cleaning or traditional conveying structures. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a partial cross-sectional structural diagram of the present invention.

[0016] Figure 3 This is a utility model Figure 2 A schematic diagram of the main structure.

[0017] In the picture: Film cleaning box 1, film inlet 2, air inlet 3, transmission box 4, cylinder 5, drive motor 6, cleaning inner box 7, drying port 8, drying fan 9, upper conveyor roller 10, lower conveyor roller 11, sealing plate 12, drain pipe 13. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0020] As attached Figure 1 To be continued Figure 3 As shown: This utility model provides a medical film cleaning device, including a film cleaning box 1, a film inlet 2, an air inlet 3, a transmission box 4, a cylinder 5, a drive motor 6, a cleaning inner box 7, a drying port 8, a drying fan 9, an upper conveying roller 10, a lower conveying roller 11, a sealing plate 12, and a drain pipe 13. The film cleaning box 1 has a film inlet 2 at its top and air inlets 3 on opposite sides above it. The transmission box 4 and cylinder 5 are fixedly installed externally on the film cleaning box 1. Each transmission box 4 has... The drive motor 6 is installed; the inner cleaning box 7 installed inside the film cleaning box 1 has a drying port 8, and the drying fan 9 is fixedly installed on its outside; the upper conveying roller 10 and the lower conveying roller 11, which are rotatably installed inside the inner cleaning box 7, are fixed to the output end of the transmission box 4; the sealing plate 12 is slidably installed inside the film cleaning box 1 and is fixed to the output end of the cylinder 5; the drain pipe 13 provided below the inner cleaning box 7 extends out of the film cleaning box 1.

[0021] Furthermore, the cleaning inner box 7 is fixedly installed inside the film washing chamber 1 with bolts. Its top opening is precisely aligned with and connected to the film inlet 2 on the top of the film washing chamber 1, ensuring that the film can smoothly enter the cleaning inner box 7 from the film inlet 2. The cleaning inner box 7 is a rectangular cavity structure with an open top and a closed bottom, made of 304 stainless steel (corrosion resistant and meeting the hygiene requirements of medical equipment). Rectangular or circular drying ports 8 are opened on the left and right sides of its upper part. The height of the drying ports 8 is exactly the same as the circular air inlets 3 opened on the side walls of the film washing chamber 1, and the central axes of the two are collinear, so that clean air from outside can enter through the air inlets 3 and flow directly through the drying ports 8 to the drying area inside the cleaning inner box 7, forming a smooth airflow channel.

[0022] Furthermore, a mounting bracket is welded to the outer wall of the upper part of the inner cleaning box 7. The drying fan 9 is detachably mounted on this bracket by bolts, with its air outlet precisely corresponding to the drying port 8 opened in the inner cleaning box 7 (the distance between the edge of the air outlet and the edge of the drying port 8 does not exceed 5mm). This ensures that all the hot air generated by the drying fan 9 can be blown into the inner cleaning box 7 through the drying port 8. The drying fan 9 is located entirely inside the cavity of the film washing chamber 1 and is horizontally positioned on the side of the upper conveyor roller 10 away from the film conveying path (the distance between it and the axis of the upper conveyor roller 10 is 15-20cm). This avoids vibration from the fan interfering with the stable rotation of the upper conveyor roller 10. At the same time, a low-noise medical-grade fan (noise ≤55dB) is used, which meets the requirements for use in medical environments.

[0023] Furthermore, both the upper conveyor roller 10 and the lower conveyor roller 11 are made of food-grade silicone (the outer layer is soft and wear-resistant, preventing scratches on the film). Each roller has two sets of parallel conveying units, each set containing 3-8 roller shafts, arranged vertically at equal intervals (8-10cm spacing). The axes of the two sets of upper conveyor rollers 10 and the two sets of lower conveyor rollers 11 are strictly parallel (parallelism error ≤0.1mm / m). A film conveying area with a width of 0.3-0.5mm (suitable for conventional medical film thickness) is formed between the two sets of upper conveyor rollers 10 and the two sets of lower conveyor rollers 11. The central axis of the conveying area is collinear with the central axis of the film inlet 2, ensuring that the film conveying path is centered. Each upper conveyor roller 10 is tightly wrapped with a layer of medical-grade polyester fiber absorbent cotton (2-3mm thick, absorbency ≥300%) by heat shrinking. The surface of the absorbent cotton is degreased, eliminating the risk of fiber shedding.

[0024] Furthermore, a vertical gap of 40-55mm is reserved between the bottom of the upper conveyor roller 10 and the top of the lower conveyor roller 11. This gap allows the two sealing plates 12 to move laterally without interference. The conveying areas of the upper conveyor roller 10 and the lower conveyor roller 11 are in the same vertical plane, and the height difference between the tangents of adjacent roller shafts is ≤0.5mm, ensuring that the film can smoothly transition from the clamping area of ​​the upper conveyor roller 10 to the clamping area of ​​the lower conveyor roller 11, avoiding jamming or wrinkling during the transition. Rectangular slots (0.5mm wider than the width of the sealing plate 12) are provided on the left and right side walls of the middle position of the inner cleaning box 7. Rubber sealing rings are embedded in the inside of the slots (to prevent leakage of cleaning fluid). The two ends of the sealing plate 12 (made of 1mm thick 304 stainless steel plate) pass through the slots on both sides, and one end is fixedly connected to the piston rod of the cylinder 5 through a hinge seat. It can reciprocate in the horizontal direction under the drive of the cylinder 5 (the stroke is 1 / 2 of the width of the inner cleaning box 7). The two sealing plates 12 are at the same horizontal height, and 0.5mm thick silicone sealing strips are pasted on their opposite end faces. When the two move towards each other and come into contact, the sealing strips can achieve tight fit (sealing pressure ≥0.2MPa), forming complete isolation between the upper and lower areas of the inner cleaning box 7.

[0025] The working principle is as follows: First, the medical film to be cleaned is inserted into the inlet 2 of the film cleaning box 1. After the film enters the inner cleaning box 7, it is held by two sets of upper conveyor rollers 10.

[0026] Subsequently, the drive motor 6 starts and drives the upper conveyor roller 10 and the lower conveyor roller 11 to rotate through the transmission box 4. Since the two sets of conveyor rollers rotate in opposite directions, the film is conveyed downward under the action of clamping force and gradually enters the cleaning liquid in the lower part of the cleaning inner box 7. The lower conveyor roller 11 continues to clamp the film and drive it to complete the soaking and cleaning in the cleaning liquid.

[0027] After cleaning, the conveyor rollers rotate in the opposite direction, causing the film to move upward, detach from the cleaning solution, and transition to the clamping area of ​​the upper conveyor roller 10.

[0028] At this time, cylinder 5 drives the two sealing plates 12 to move laterally towards each other until their end faces are in close contact, isolating the upper and lower areas of the inner cleaning box 7 and preventing the cleaning fluid from being affected by the airflow above.

[0029] Next, the drying fan 9 is started, and clean air from outside enters through the air inlet 3. After being converted into hot air by the drying fan 9, it is blown through the drying port 8 onto the film in the area of ​​the upper conveyor roller 10. At the same time, the absorbent cotton sleeve outside the upper conveyor roller 10 absorbs the water stains remaining on the surface of the film, and the hot air works together to achieve rapid drying of the film.

[0030] Finally, after drying, the conveyor roller continues to drive the film upward and sends it out from the inlet 2, completing the entire cleaning and drying process. Waste liquid generated during the cleaning process can be discharged through the drain pipe 13.

[0031] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A medical film cleaning device, characterized in that, The film cleaning box (1) includes a film inlet (2), an air inlet (3), a transmission box (4), a cylinder (5), a drive motor (6), a cleaning inner box (7), a drying port (8), a drying fan (9), an upper conveyor roller (10), a lower conveyor roller (11), a sealing plate (12), and a drain pipe (13). The film cleaning box (1) has a film inlet (2) on its top and air inlets (3) on its two opposite sides above it. The transmission box (4) and a cylinder (5) are fixedly installed on the outside of the film cleaning box (1). Each transmission box (4) is equipped with a cylinder. The drive motor (6); the inner cleaning box (7) installed inside the film cleaning box (1) has the drying port (8) and the drying fan (9) is fixedly installed on its outside. The upper conveying roller (10) and the lower conveying roller (11) rotatably installed inside the inner cleaning box (7) are fixed to the output end of the transmission box (4); the sealing plate (12) is slidably installed inside the film cleaning box (1) and fixed to the output end of the cylinder (5); the drain pipe (13) provided below the inner cleaning box (7) extends out of the film cleaning box (1).

2. The medical film cleaning device as described in claim 1, characterized in that: The cleaning inner box (7) is connected to the film inlet (2) provided above the film cleaning box (1). Drying ports (8) are provided on both sides above the cleaning inner box (7). The drying ports (8) and the air inlet (3) provided above the film cleaning box (1) are at the same height.

3. The medical film cleaning device as described in claim 2, characterized in that: The drying fan (9) fixedly installed on the outer side of the cleaning inner box (7) corresponds to the drying port (8). The drying fan (9) is located inside the film cleaning box (1) and on one side of the upper conveyor roller (10).

4. The medical film cleaning device as described in claim 3, characterized in that: The upper conveying roller (10) and the lower conveying roller (11) are provided in two sets, each set is arranged vertically at equal intervals and the two sets are parallel to each other. The gap between the two sets of upper conveying rollers (10) and lower conveying rollers (11) is the film conveying area. Each upper conveying roller (10) is covered with an absorbent cotton sleeve.

5. The medical film cleaning device as described in claim 4, characterized in that: There is a gap between the upper conveying roller (10) and the lower conveying roller (11) that allows the two sealing plates (12) to move laterally. The film can smoothly transition from the upper conveying roller (10) to the lower conveying roller (11). The cleaning inner box (7) has slots through the middle of both sides that allow the sealing plates (12) to pass through. The sealing plates (12) can be driven by the cylinder (5) to make lateral reciprocating motion. The end faces of the two sealing plates (12) on the same horizontal line can be in close contact with each other.

6. The medical film cleaning device as described in claim 5, characterized in that: The sealing plate (12) is located above the lower conveying roller (11) and below the upper conveying roller (10). A gap can be opened between the two sealing plates (12) to allow the film to pass through. Film cleaning fluid is located below the sealing plate (12). The lower conveying roller (11) is immersed in the cleaning fluid below the inside of the cleaning inner box (7).

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