A medical dry type laser film quality detection device

Abstract

The utility model relates to medical film detection equipment technical field especially, relates to a medical dry -type laser film quality detection device, solved the prior art because medical dry -type film material is thin and the flexibility is stronger, in the process of placing in film placement groove, it is very easy to bend or warp because of dead weight or improper operation, lead to the problem that film surface can not keep ideal flat state. A kind of medical dry -type laser film quality detection device, including detection frame and laser thickness gauge, the laser thickness gauge is connected in the inner top of detection frame by mounting support, the inner bottom of detection frame both sides are provided with cross bar. The utility model is through the cooperation of pressing plate, round bar and elastic structure, and the even soft pressure is applied to film edge, effectively flatten film surface, prevent its bending or warping influence measurement accuracy, ensure the flatness of film in detection process and the accuracy of measurement result.

Description

Technical Field

[0001] This utility model relates to the technical field of medical film testing equipment, and in particular to a medical dry laser film quality testing device. Background Technology

[0002] Medical dry laser film is a high-precision medical imaging output medium that allows for direct laser imaging without chemical development and fixing. It is widely used in radiology, CT, MRI, and other medical imaging fields, and its image quality directly affects the accuracy of doctors' diagnoses and the treatment outcomes for patients. Because the manufacturing process of this type of film requires extremely high standards for physical parameters such as coating uniformity and substrate thickness consistency, even slight thickness deviations can lead to problems such as uneven image density and contrast distortion, thus affecting the final image quality. Therefore, precise testing of the key physical parameters of medical dry laser film, especially its thickness, after production is a necessary step to ensure product quality stability and clinical safety.

[0003] Existing testing devices commonly employ a laser thickness gauge in conjunction with a film placement slot for measurement. The thickness of the film is indirectly calculated by obtaining the distance difference between the laser thickness gauge and the bottom of the placement slot, and between the laser thickness gauge and the top surface of the film. However, this method faces significant problems in practical operation: due to the thinness and flexibility of medical dry films, they are prone to bending or warping during placement in the slot due to their own weight or improper handling, resulting in an unsatisfactory flatness of the film surface. This deformation directly affects the measurement reference plane of the laser thickness gauge, causing the measured value to deviate from the true thickness and generating systematic errors.

[0004] Therefore, to address the shortcomings of existing technologies, we urgently need a medical dry laser film quality inspection device to solve this problem. This novel inspection device should effectively prevent film bending and deformation during the measurement process, ensuring the flatness and repeatability of the measurement surface, while simultaneously improving the automation level and data accuracy of the inspection. This will better meet the demands of modern, high-precision, and large-scale medical film production, providing strong support for the high-quality development of the medical imaging industry. Utility Model Content

[0005] The purpose of this invention is to provide a medical dry laser film quality inspection device, which solves the problem in the prior art that, due to the thin and flexible material of medical dry films, they are prone to bending or warping due to their own weight or improper operation during the film placement process, resulting in the film surface not being able to maintain an ideal flat state.

[0006] To achieve the above objectives, this utility model provides a medical dry laser film quality inspection device, including an inspection frame and a laser thickness gauge. The laser thickness gauge is connected to the inner top of the inspection frame via a mounting bracket, and crossbars are provided on both sides of the inner bottom of the inspection frame. Both ends of the crossbar are slidably connected to round rods. The top end of the round rod is connected to the top of the crossbar through an elastic structure. The bottom end of the round rod is connected to a pressure plate. One side of the crossbar is connected to the side wall of the detection frame through a vertical lifting structure.

[0007] The detection frame has lifting slots on both sides, and a lifting rod that is slidably connected to the inside of the lifting slot is fixedly connected to one side of the crossbar.

[0008] Both ends of the crossbar are fixedly connected to side plates, one end of the round rod slides through the side plates, and the elastic structure includes a top round plate fixedly connected to the top end of the round rod. The bottom of the top round plate is connected to the top of the crossbar through a compression spring.

[0009] The vertical lifting structure includes a mounting plate installed on the top of one side of the detection frame. A push cylinder is connected to the top of the mounting plate, and the output end of the push cylinder is connected to the top of the lifting rod.

[0010] The pressure plate is made of metal, and a rubber pad is fixedly connected to the bottom of the pressure plate.

[0011] The lifting groove is internally connected to a guide rod, and the lifting rod is slidably connected to the guide rod.

[0012] This utility model discloses a medical dry laser film quality inspection device. By setting crossbars on both sides of the bottom within the inspection frame, and slidingly connecting round rods to these crossbars, with pressure plates connected to the bottom of the round rods and the tops connected to the crossbars via an elastic structure, it achieves flexible pressing and automatic leveling of the film edges. This effectively eliminates bending and warping deformations caused by the film's own weight or soft material, ensuring the measured surface is in an ideal flat state. The vertical lifting structure allows for adjustable overall height of the crossbars, thereby adjusting the initial position and pressing range of the pressure plate, enhancing the device's adaptability to films of different specifications. The elastic structure provides stable and recoverable downward pressure to the pressure plate, avoiding scratches or excessive deformation caused by rigid pressing, thus improving the safety and reliability of the inspection process. The laser thickness gauge is securely mounted on the top of the inspection frame via a mounting bracket, ensuring the stability of the measurement benchmark. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

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

[0015] Figure 2 This is a schematic diagram of the pressure plate and round rod according to an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the detection frame and lifting groove according to an embodiment of the present invention.

[0017] Figure 4 This is a structural schematic diagram of the lifting rod and guide rod according to an embodiment of the present utility model.

[0018] Figure 5 This is a schematic diagram of the compression spring and top circular plate according to an embodiment of the present invention.

[0019] In the diagram: 1. Detection frame; 2. Laser thickness gauge; 3. Mounting bracket; 4. Lifting rod; 5. Pressure plate; 6. Round rod; 7. Lifting groove; 8. Push cylinder; 9. Mounting plate; 10. Guide rod; 11. Compression spring; 12. Top round plate. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Example 1 Please see Figure 1-5 As shown, a medical dry laser film quality inspection device of this embodiment includes an inspection frame 1 and a laser thickness gauge 2. The laser thickness gauge 2 is connected to the inner top of the inspection frame 1 through a mounting bracket 3. Horizontal bars are provided on both sides of the inner bottom of the inspection frame 1. Both ends of the crossbar are slidably connected to round rods 6. The top of the round rods 6 is connected to the top of the crossbar through an elastic structure. The bottom end of the round rods 6 is connected to a pressure plate 5. One side of the crossbar is connected to the side wall of the detection frame 1 through a vertical lifting structure.

[0022] When thickness measurement of medical dry laser films is required, the vertical position of the crossbar on the side wall of the detection frame 1 is first adjusted using the vertical lifting structure to accommodate the testing needs of films of different sizes or thicknesses. After adjustment, the film to be tested is placed horizontally at the bottom of the detection frame 1, directly below the laser thickness gauge 2. Subsequently, the round rods 6 on both sides of the crossbar move downwards under the action of the elastic structure, driving the pressure plate 5 connected to their bottom ends. The pressure plate 5 first contacts the film surface and applies uniform and gentle pressure, pressing the edge area of ​​the film flat against the bottom reference surface of the detection frame 1 to prevent sagging, bending, or local warping due to its own weight or initial stress. Since the round rod 6 and the crossbar are slidably connected, the pressure plate 5 can slide downwards during the pressing process. The film slides freely along the axis of the round rod 6, while the elastic structure provides controllable rebound force to ensure moderate pressure. This effectively flattens the film without causing deformation or surface damage due to excessive pressure. After the film is completely flattened and stably adhered to the reference surface, the laser thickness gauge 2, installed at the top of the detection frame 1 and fixed by the mounting bracket 3, emits a laser beam downwards to measure the distance from the laser beam to the upper surface of the film. The distance from the laser thickness gauge 2 to the bottom reference surface of the detection frame 1 is also known. By calculating the difference between the two, the actual thickness of the film can be accurately obtained. Throughout the measurement process, the pressure plate 5 continuously maintains a tight grip on the edge of the film, ensuring that the measured area remains flat and stable without deformation, thereby guaranteeing the accuracy and repeatability of the measurement data.

[0023] Example 2 Please see Figure 1-5 As shown in this embodiment, a medical dry laser film quality inspection device has lifting grooves 7 on both sides of the inspection frame 1. A lifting rod 4 is fixedly connected to one side of the crossbar and slidably connected inside the lifting groove 7. Specifically, through the cooperation of the lifting grooves 7 on both sides of the inspection frame 1 and the lifting rod 4 fixedly connected to one side of the crossbar, the lifting rod 4 is embedded in the lifting groove 7 and slides along its length. During the vertical lifting process, the lifting groove 7 provides guiding constraints for the lifting rod 4, limiting its lateral displacement. This achieves the effect of ensuring smooth movement of the crossbar during height adjustment and clamping, preventing skewing or jamming, and improving the structural stability and positioning accuracy.

[0024] The vertical lifting structure includes a mounting plate 9 installed on the top of one side of the detection frame 1. A push cylinder 8 is connected to the top of the mounting plate 9. The output end of the push cylinder 8 is connected to the top of the lifting rod 4. Specifically, through the cooperation between the mounting plate 9 installed on the top of one side of the detection frame 1, the push cylinder 8 connected thereto, and the top of the lifting rod 4, the output end of the push cylinder 8 moves back and forth after it is started, directly pushing or pulling the lifting rod 4 up and down in the lifting groove 7, thereby driving the horizontal bar to rise and fall as a whole. This achieves the effect of automatically adjusting the height of the horizontal bar, reducing manual intervention, and improving the convenience of operation and adjustment efficiency.

[0025] Example 3 Please see Figure 1-5 As shown in this embodiment, a medical dry laser film quality inspection device has side plates fixedly connected to both ends of a crossbar. One end of a round rod 6 slides through the side plate. The elastic structure includes a top round plate 12 fixedly connected to the top end of the round rod 6. The bottom of the top round plate 12 is connected to the top of the crossbar through a compression spring 11. Specifically, through the cooperation of the side plates fixed at both ends of the crossbar, the round rod 6 sliding through the side plate, the top round plate 12, and the compression spring 11, the round rod 6 can slide up and down along the side plate. The top round plate 12 is fixed to the top end of the round rod 6. One end of the compression spring 11 abuts against the top round plate 12, and the other end abuts against the top of the crossbar. When the pressure plate 5 presses the film, the spring is compressed and generates an elastic restoring force, giving the round rod 6 an automatic reset capability. This achieves the effect of providing flexible pressing force to the pressure plate 5, adapting to the slight undulations on the film surface, avoiding damage caused by rigid compression, and ensuring uniform and continuous pressure.

[0026] The pressure plate 5 is made of metal, and a rubber pad is fixedly connected to the bottom of the pressure plate 5. Specifically, through the cooperation between the metal pressure plate 5 and the rubber pad fixedly connected to its bottom, the metal material ensures the structural strength and durability of the pressure plate 5, while the rubber pad provides a soft and non-slip contact surface when in contact with the film. This achieves the effect of effectively pressing the film while avoiding direct scratching or wear on the film surface by the pressure plate 5, protecting the integrity of the product, and improving the safety of testing.

[0027] The lifting groove 7 is internally connected to a guide rod 10, and the lifting rod 4 is slidably connected to the guide rod 10. Specifically, through the cooperation of the guide rod 10 and the lifting rod 4 slidably connected inside the lifting groove 7, the guide rod 10 is fixed inside the lifting groove 7, and the lifting rod 4 is sleeved on the outer periphery of the guide rod 10 and can slide along its axial direction, forming a stable linear guide pair. This further enhances the straightness and stability of the movement of the lifting rod 4, reduces swaying or lateral stress, ensures the horizontal synchronous lifting of the crossbar, and improves the reliability and adjustment accuracy of the equipment operation.

[0028] When thickness measurement of medical dry laser films is required, firstly, the push cylinder 8, mounted on the mounting plate 9 at the top of one side of the detection frame 1, is activated. Its output end extends and retracts, driving the connecting lifting rod 4 to move up and down along the lifting grooves 7 on both sides of the detection frame 1. Since the lifting rod 4 is fixedly connected to the crossbar, it drives the entire crossbar to vertically adjust its height to accommodate films of different sizes or thicknesses. Simultaneously, the guide rod 10 connected inside the lifting groove 7 slides with the lifting rod 4, providing stable guidance and preventing deviation or shaking during the lifting process. After adjustment, the film to be measured is placed horizontally on the inner bottom reference surface of the detection frame 1, directly below the laser thickness gauge 2. Subsequently, under the action of the elastic structure, the round rod 6, which slides through the side plates fixedly connected to both ends of the crossbar, drives the pressure plate 5 connected to its bottom end to move downwards. The pressure plate 5 first contacts the edge area of ​​the film and applies pressure, pressing the film flat and tightly against the reference surface, preventing it from collapsing due to its own weight. The film may bend or warp due to its weight or flexibility. During this process, the top circular plate 12 fixed at the top of the round rod 6 is connected to the top of the crossbar by a compression spring 11. The spring is compressed to generate a controllable elastic restoring force, which enables the pressure plate 5 to achieve flexible pressing and avoids excessive pressure damage to the film surface. The pressure plate 5 is made of metal to ensure structural strength and durability. A rubber pad is fixedly connected to its bottom to further ensure that it has a buffering, anti-slip and protective function when in contact with the film. After the film is completely flattened and stably attached, the laser thickness gauge 2, which is installed at the top of the detection frame 1 and fixed by the mounting bracket 3, emits a laser beam downward to measure the distance from the laser thickness gauge to the upper surface of the film. Combined with the known distance from the laser thickness gauge 2 to the bottom reference surface of the detection frame 1, the actual thickness of the film is accurately obtained by calculating the difference. Throughout the measurement process, the pressure plate 5 continuously maintains the pressing state on the film to ensure that the measured area is always in a flat, non-deformed, and stable state, ensuring the accuracy and repeatability of the measurement data.

[0029] This technical solution uses the detection frame 1 as the overall support structure, providing an installation base and measurement reference surface for all components. The laser thickness gauge 2 is fixed to the top of the frame via the mounting bracket 3, ensuring a stable and reliable measurement position. The two horizontal bars support the clamping mechanism, and one side of the horizontal bar is adjusted vertically by sliding the lifting rod 4 with the lifting groove 7. The cylinder 8 serves as the power source for the vertical lifting structure, enabling automated control of the horizontal bar height and improving operational efficiency. The guide rod 10 is located inside the lifting groove 7 and is slidably connected to the lifting rod 4, enhancing the lifting guidance accuracy and operational stability. The side plates at both ends of the horizontal bar guide the circular rod 6 to slide up and down. The top circular plate 12 and the compression spring 11 form an elastic structure, providing uniform and recoverable clamping force to the pressure plate 5, effectively eliminating the deformation problem caused by the softness of the film. The pressure plate 5 is made of metal and equipped with a rubber pad, taking into account both structural strength and surface protection, ensuring the clamping effect while avoiding scratching the film.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A medical dry laser film quality inspection device, characterized in that, include: The detection frame (1) and the laser thickness gauge (2) are connected to the inner top of the detection frame (1) by a mounting bracket (3). The detection frame (1) has crossbars on both sides of the inner bottom. Both ends of the crossbar are slidably connected to round rods (6). The top end of the round rods (6) is connected to the top of the crossbar through an elastic structure. The bottom end of the round rods (6) is connected to a pressure plate (5). One side of the crossbar is connected to the side wall of the detection frame (1) through a vertical lifting structure.

2. The medical dry laser film quality inspection device according to claim 1, characterized in that, The detection frame (1) has lifting grooves (7) on both sides, and a lifting rod (4) that is slidably connected to the inside of the lifting groove (7) is fixedly connected to one side of the crossbar.

3. The medical dry laser film quality inspection device according to claim 1, characterized in that, Both ends of the crossbar are fixedly connected to side plates. One end of the round rod (6) slides through the side plate. The elastic structure includes a top round plate (12) fixedly connected to the top end of the round rod (6). The bottom of the top round plate (12) is connected to the top of the crossbar by a compression spring (11).

4. The medical dry laser film quality inspection device according to claim 2, characterized in that, The vertical lifting structure includes a mounting plate (9) installed on the top of one side of the detection frame (1), and a push cylinder (8) is connected to the top of the mounting plate (9). The output end of the push cylinder (8) is connected to the top of the lifting rod (4).

5. The medical dry laser film quality inspection device according to claim 3, characterized in that, The pressure plate (5) is made of metal, and a rubber pad is fixedly connected to the bottom of the pressure plate (5).

6. The medical dry laser film quality inspection device according to claim 4, characterized in that, The lifting groove (7) is internally connected to a guide rod (10), and the lifting rod (4) is slidably connected to the guide rod (10).

Images