A pathological wax block fast retrieval positioning cabinet

Abstract

This invention discloses a rapid retrieval and positioning cabinet for pathological paraffin blocks, relating to the field of positioning cabinet technology. It includes: an arc-shaped elastic plate located at the opening of an air groove to form a sealed cavity; the arc-shaped elastic plate includes a first arc-shaped portion near the suction cup and a second arc-shaped portion away from the suction cup, with the length of the first arc-shaped portion being shorter than that of the second arc-shaped portion; and an air passage unit connected to the sealed cavity, configured to change its internal air pressure in response to the lifting and lowering movement of a transfer plate, driving the arc-shaped elastic plate to adaptively deform, thereby forming a gradually narrowing suction channel or a slow-release channel that gradually expands from the apex to both sides within the air vents. This invention, through the arc-shaped elastic plate and air passage unit, prevents the airflow from suddenly impacting the paraffin block box, instead balancing the negative pressure within the suction cup in a smooth and gradual release manner, ensuring that the paraffin block box can smoothly detach from the suction cup and avoiding shaking, positional displacement, or breakage of the paraffin block due to airflow impact.

Description

Technical Field

[0001] This invention relates to the field of positioning cabinet technology, specifically a rapid retrieval and positioning cabinet for pathological paraffin blocks. Background Technology

[0002] Paraffin blocks are the core carrier for preserving tissue samples in hospital pathology departments, and their storage and management efficiency directly affects the speed and quality of pathological diagnosis and research. Traditional paraffin block storage cabinets are usually simple partitioned drawer-type structures, and the retrieval, use, and return of paraffin block boxes rely entirely on manual operation, which is inefficient and prone to human error leading to incorrect storage locations.

[0003] To improve automation, existing technologies have developed automated retrieval solutions that combine robotic arms and grippers. However, the wax block boxes themselves are fragile and vary slightly in size. Rigid grippers face challenges in controlling the gripping force during grasping; insufficient force may lead to failure, while excessive force can easily crush the wax block box, causing irreversible loss of valuable samples. Furthermore, in densely packed storage compartments, the robotic arm has limited operating space, and the movement and operation of the rigid grippers pose a risk of collision.

[0004] A negative pressure suction cup is used instead of a mechanical gripper to achieve a gentler grip. When placing the wax block box, the negative pressure suction unit inflates the negative pressure space formed between the suction cup and the wax block box, thereby canceling the suction state between the suction cup and the wax block box and placing the wax block box. However, when inflating the negative pressure space formed between the suction cup and the wax block box, the wax block box is easily impacted by the airflow, which may cause the wax block box to bounce or collide, resulting in the wax block breaking. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a rapid retrieval and positioning cabinet for pathological paraffin blocks.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A rapid retrieval and positioning cabinet for pathological paraffin blocks includes: Cabinet; A retrieval component that moves along the length of the cabinet includes: The transfer plate is equipped with a lifting mechanism and an array of suction cups arranged at the bottom of the transfer plate. The suction cups are used to grasp the wax block box by negative pressure adsorption. The array consists of a negative pressure suction unit set on top of the transfer plate and an air hole connecting the suction cup and the negative pressure suction unit. Air grooves evenly distributed on the walls of the pores; An arc-shaped elastic plate is located at the opening of the air groove to form a sealed cavity. The arc-shaped elastic plate includes a first arc-shaped portion close to the suction cup and a second arc-shaped portion away from the suction cup, and the length of the first arc-shaped portion is less than that of the second arc-shaped portion. The air passage unit connected to the sealed cavity is configured to change its internal air pressure in response to the lifting and lowering movement of the transfer plate, driving the arc-shaped elastic plate to adaptively deform, so as to form a gradually narrowing air extraction channel or a slow release channel that gradually expands from the arc apex to both sides within the air hole.

[0007] Preferably, the transfer plate descends, and a negative pressure is formed inside the air circuit unit to draw in the sealing cavity, causing the arc-shaped elastic plate to deform inward toward the air groove wall, thereby increasing the channel area of ​​the air hole and forming a gradually narrowing air extraction channel.

[0008] Preferably, the transfer plate rises, and the air circuit unit inflates the sealing cavity, causing the arc-shaped elastic plate to bulge and deform towards the center of the air hole, thereby reducing the channel area of ​​the air hole and forming a slow-release channel that gradually expands from the arc apex to both sides.

[0009] Preferably, the arc-shaped elastic plate has an array of inverted scale structures on the surface near the center of the air hole. The scale structure includes an elastic scale portion inclinedly disposed on the surface of the arc-shaped elastic plate and a rubber portion located between the elastic scale portion and the arc-shaped elastic plate, and the three form an air cavity communicating with the air groove.

[0010] Preferably, the negative pressure inside the descending air passage unit of the transfer plate synchronously draws in the sealing cavity and the air cavity, causing the elastic scale part to be concave and deformed towards the arc-shaped elastic plate and compress the rubber part, so as to form a smooth inner wall air extraction channel in the air hole.

[0011] Preferably, as the transfer plate rises, the air circuit unit simultaneously inflates the sealing cavity and the air cavity, causing the elastic scale portion to bulge and deform away from the arc-shaped elastic plate, and the rubber portion to expand and deform, forming an arc-shaped guide surface facing away from the suction cup.

[0012] Preferably, the negative pressure suction unit includes a negative pressure box fixedly installed on the top of the transfer plate and communicating with the suction cup, a negative pressure plate slidably installed inside the negative pressure box, and a cylinder with its output end fixedly connected to the negative pressure plate is provided on the top of the negative pressure box.

[0013] Preferably, the air circuit unit includes an air cylinder fixedly disposed on the top of the transfer plate and communicating with the sealing cavity, and a piston that slides synchronously with the transfer plate within the air cylinder.

[0014] Preferably, the suction area of ​​the suction cups arranged in the bottom array of a single transfer plate is smaller than the top area of ​​the wax block box.

[0015] Preferably, the cabinet is equipped with a lifting and lowering receiving platform.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes an arc-shaped elastic plate and gas path unit. After the wax block box is quickly adsorbed and fixed, a drive rod moves a transfer plate upward and out of the unit cell. During the upward movement of the transfer plate, the gas path unit refills the sealed cavity with gas extracted from it, increasing the internal pressure. This causes the arc-shaped elastic plate to deform and bulge towards the center of the air hole. Because the arc-shaped elastic plate is arc-shaped, the overall channel area of ​​the air hole decreases when it deforms towards the center. Furthermore, since the length of the first arc-shaped portion is less than that of the second arc-shaped portion, a slow-release channel gradually expanding from the apex to both sides is formed within the air hole, as shown in the figure. When the wax block box is de-adsorbed and gas is introduced into the suction cup, the gas... The airflow first passes through the airflow channel located at the second arc section. After entering, the airflow will first undergo a slow contraction before reaching the top of the arc. The flow rate is initially controlled at a low level, forming a relatively gentle contraction section channel. The airflow channel at the first arc section forms a gradually expanding channel from the top of the arc towards the suction cup. Because the radius of curvature of the first arc section is small, the inner wall of the channel is smoother. The airflow will further decelerate and widen here, and finally enter the suction cup with a stable low-speed airflow. In the end, when inflating the suction cup, the airflow will not suddenly impact the wax block box, but will balance the negative pressure in the suction cup in a smooth and slow manner, ensuring that the wax block box can be smoothly released from the suction cup, avoiding the wax block box shaking, position displacement or wax block breakage caused by airflow impact. Attached Figure Description

[0017] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 A magnified structural diagram at point A; Figure 4 For the present invention Figure 3 A magnified structural diagram at point B; Figure 5 For the present invention Figure 4 A magnified structural diagram at point C; Figure 6 For the present invention Figure 3 A schematic diagram of the structural changes at point B; Figure 7 For the present invention Figure 4 A schematic diagram of the structural changes at point C; Figure 8 This is a schematic diagram of the cross-sectional structure of the present invention.

[0018] The diagram shows the following components: 1. Cabinet; 2. Receiving platform; 3. Moving block; 4. Electric actuator; 5. Air cylinder; 6. Transfer plate; 7. Suction cup; 8. Negative pressure plate; 9. Negative pressure box; 10. Cylinder; 11. Piston; 12. Limiting rod; 13. Air hole; 14. Air groove; 15. Arc-shaped elastic plate; 16. Elastic scale part; 17. Rubber part. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0020] like Figure 1-8 As shown, a rapid retrieval and positioning cabinet for pathological paraffin blocks includes: Cabinet 1; A retrieval component that moves along the length of cabinet 1 includes: The lifting and lowering transfer plate 6 and the array of suction cups 7 arranged at the bottom of the transfer plate 6 are used to grasp the wax block box by negative pressure adsorption. The array consists of a negative pressure suction unit positioned on the top of the transfer plate 6 and an air hole 13 connecting the suction cup 7 and the negative pressure suction unit. Air grooves 14 are evenly distributed on the wall of the air pores 13; The arc-shaped elastic plate 15 is located at the opening of the air groove 14 to form a sealed cavity. The arc-shaped elastic plate 15 includes a first arc-shaped portion close to the suction cup 7 and a second arc-shaped portion away from the suction cup 7, and the length of the first arc-shaped portion is less than that of the second arc-shaped portion. The air passage unit connected to the sealed cavity is configured to change its internal air pressure in response to the lifting and lowering movement of the transfer plate 6, driving the arc-shaped elastic plate 15 to adaptively deform, so as to form a gradually narrowing air extraction channel or a slow-release channel that gradually expands from the arc top to both sides within the air hole 13.

[0021] Specifically, in use, the controller installed on cabinet 1 inputs the information of the wax block box to be retrieved. The controller quickly searches for the location of the corresponding wax block box and starts the first motor of the corresponding row, which drives the lead screw located at the top of the corresponding row to rotate. This causes the moving block 3 coupled to the lead screw to move to the cell above the storage position of the wax block box. The bottom of the moving block 3 is arrayed with multiple transfer plates 6 corresponding to the cell positions. The electric push rod 4 symmetrically arranged at the bottom of the moving block 3 drives the transfer plate 6 fixed at the output end of the electric push rod 4 to move towards the wax block box. This causes the suction cup 7 arrayed at the bottom of the transfer plate 6 to fit against the top of the wax block box. The negative pressure suction unit connected to the suction cup 7 suctions the suction cup 7, thereby grabbing the wax block box through negative pressure adsorption. This achieves rapid retrieval and positioning, and automatic retrieval of the wax block box, eliminating the need for manual positioning and searching by the user, making it convenient and fast.

[0022] Furthermore, when the wax block box is placed, the negative pressure suction unit inflates the negative pressure space formed between the suction cup 7 and the wax block box, thereby canceling the adsorption state between the suction cup 7 and the wax block box, thus enabling the wax block box to be placed. However, when inflating the negative pressure space formed between the suction cup 7 and the wax block box, the wax block box is easily impacted by the airflow, causing the wax block box to bounce or collide, resulting in the wax block breaking.

[0023] Furthermore, through the arc-shaped elastic plate 15 and the air passage unit, when the wax block box is picked up, the electric actuator 4 is activated to drive the transfer plate 6, which is fixedly set at the output end of the electric actuator 4, to move towards the wax block box. This causes the suction cups 7 arrayed at the bottom of the transfer plate 6 to fit against the top of the wax block box. During the descent of the transfer plate 6, the air pressure inside the air passage unit decreases synchronously, thereby creating a negative pressure suction on the sealed cavity connected to the air passage unit. This reduces the air pressure inside the sealed cavity, thereby driving the arc-shaped elastic plate 15 to deform inward toward the wall of the air groove 14. Due to the arc... The curved elastic plate 15 is arc-shaped. When the arc-shaped elastic plate 15 is deformed and recessed towards the wall of the air groove 14, the overall channel area of ​​the internal channel of the air hole 13 increases. When the negative pressure suction unit sucks the suction cup 7 through the air hole 13, the overall channel area of ​​the internal channel of the air hole 13 increases, thereby increasing the airflow per unit area. Furthermore, since the arc-shaped elastic plate 15 includes a first arc-shaped portion close to the suction cup 7 and a second arc-shaped portion away from the suction cup 7, and the length of the first arc-shaped portion is less than that of the second arc-shaped portion, when the arc-shaped elastic plate 15 is deformed and recessed, as... Figure 4As shown, a gradually narrowing suction channel is formed. The gas first converges through the channel at the first arc-shaped part. When it passes the apex of the arc, the channel area is the largest and the flow rate increases. Then it passes through the channel located at the second arc-shaped part, where the channel area gradually decreases. Following the principle that the flow velocity is smaller where the cross-section is larger and larger where the cross-section is smaller, the air velocity is increased when the negative pressure suction unit suctions the suction cup 7. This increases the flow velocity on the basis of the increased flow rate when the air passes through the air hole 13, thereby effectively improving the negative pressure suction efficiency and realizing the rapid adsorption and fixation of the wax block box.

[0024] Furthermore, after the wax block box is quickly adsorbed and fixed, the drive electric actuator 4 drives the transfer plate 6 to rise and move out of the cell. During the rise of the transfer plate 6, the gas circuit unit refills the sealed cavity with gas drawn from the sealed cavity, increasing the internal pressure inside the sealed cavity. This causes the arc-shaped elastic plate 15 to bulge and deform towards the center of the air hole 13. Because the arc-shaped elastic plate 15 is arc-shaped, when the arc-shaped elastic plate 15 bulges and deforms towards the center of the air hole 13, the overall channel area of ​​the air hole 13 decreases. Since the length of the first arc-shaped part is less than that of the second arc-shaped part, a shape is formed inside the air hole 13 as shown in the image. Figure 6 The slow-release channel, which expands gradually from the apex to both sides as shown, allows airflow to pass through the airflow channel located at the second arc-shaped part when the wax block box is de-adsorbed and air is injected into the suction cup 7. After entering, the airflow will first undergo a slow contraction before reaching the apex, and the flow rate is initially controlled at a low level, forming a relatively gentle contraction section channel. The airflow channel at the first arc-shaped part forms a gradually expanding channel from the apex to the direction near the suction cup 7. Due to the small radius of curvature of the first arc-shaped part, the inner wall of the channel is smoother, and the airflow will further decelerate and widen here, eventually entering the suction cup 7 with a stable, low-speed airflow. This ensures that when air is injected into the suction cup 7, the airflow will not suddenly impact the wax block box, but will balance the negative pressure inside the suction cup 7 in a smooth and slow release manner, ensuring that the wax block box can be smoothly detached from the suction cup 7, avoiding the wax block box shaking, position displacement, or wax block breakage caused by airflow impact, and effectively improving the success rate of retrieval.

[0025] As the transfer plate 6 descends, a negative pressure is formed inside the air circuit unit to draw in the sealed cavity, causing the arc-shaped elastic plate 15 to deform inward toward the wall of the air groove 14, thereby increasing the channel area of ​​the air hole 13 and forming a gradually narrowing air extraction channel.

[0026] As the transfer plate 6 rises, the air circuit unit inflates the sealing cavity, causing the arc-shaped elastic plate 15 to bulge and deform toward the center of the air hole 13, thereby reducing the channel area of ​​the air hole 13 and forming a slow-release channel that gradually expands from the top of the arc to both sides.

[0027] An array of inverted scale structures is arranged on the surface of the arc-shaped elastic plate 15 near the center of the air hole 13. The scale structure includes an elastic scale portion 16 inclinedly arranged on the surface of the arc-shaped elastic plate 15 and a rubber portion 17 located between the elastic scale portion 16 and the arc-shaped elastic plate 15, and the three form an air cavity communicating with the air groove 14.

[0028] The transfer plate 6 descends and forms a negative pressure inside the air passage unit, which simultaneously draws in the sealing cavity and the air cavity, causing the elastic scale part 16 to be concave and deformed towards the arc-shaped elastic plate 15 and compress the rubber part 17, so as to form a smooth inner wall air extraction channel in the air hole 13.

[0029] As the transfer plate 6 rises, the air circuit unit simultaneously inflates the sealing cavity and the air cavity, causing the elastic scale part 16 to bulge and deform away from the arc-shaped elastic plate 15, and causing the rubber part 17 to expand and deform to form an arc-shaped guide surface away from the suction cup 7.

[0030] Specifically, the transfer plate 6 descends and forms a negative pressure inside the air passage unit to simultaneously draw in the sealing cavity and the air cavity. This causes the elastic scale part 16 to deform and indent towards the arc-shaped elastic plate 15, compressing the rubber part 17. When the elastic scale part 16 is almost completely attached to the surface of the arc-shaped elastic plate 15 and the rubber part 17 is compressed to the maximum extent, the surfaces of all scale structures form a continuous and smooth curved surface. Together with the inner wall of the arc-shaped elastic plate 15, they form a suction channel without protrusions or sharp edges. The smooth inner wall reduces the intensity of airflow turbulence, increases the suction rate, and achieves rapid adsorption. Furthermore, the smooth channel makes the negative pressure transmission more uniform, and the pressure difference at each point of the suction cup 7 remains stable, ensuring that the wax block box is under balanced force and avoiding tilting.

[0031] Furthermore, as the transfer plate 6 rises, the air passage unit simultaneously inflates the sealing cavity and the air chamber, causing the elastic scale portion 16 to bulge and deform away from the arc-shaped elastic plate 15, and the rubber portion 17 to expand and deform, forming an arc-shaped guide surface facing away from the suction cup 7. The positive pressure of the air chamber acts on the inner surface of the elastic scale portion 16, pushing it to bulge away from the arc-shaped elastic plate 15. At the same time, the rubber portion 17 is released from its compressed state and expands to provide support for the elastic scale portion 16. The arc-shaped guide surface guides the airflow flowing along the channel wall to flow in the opposite direction towards the central airflow, thus forming an oblique airflow collision. After the collision, the combined velocity of the mixed airflow decreases, improving the deceleration effect compared to a simple gradually expanding channel. The turbulent energy generated by the collision is concentrated in the central area of ​​the channel, rather than near the suction cup 7, thereby limiting the turbulence intensity and preventing the turbulence from directly impacting the wax block box. In addition to the collision, some airflow will directly collide with the arc-shaped guide surface. The airflow collides along the tangential direction of the arc-shaped guide surface, and the kinetic energy is absorbed by the elastic deformation of the arc-shaped guide surface, i.e., the rubber portion 17. The elastic buffering effect converts the energy into a small amount of heat and deformation potential energy, rather than transferring it to the suction cup 7. The airflow after the collision is rebounded by the arc-shaped guide surface and diffuses to both sides of the channel along the arc tangent, forming a ring-shaped backflow, which further slows down the propulsion speed of the airflow towards the suction cup 7, thereby achieving multi-dimensional deceleration and release, and effectively avoiding collisions between the wax block box and the suction cup.

[0032] The negative pressure suction unit includes a negative pressure box 9 fixedly installed on the top of the transfer plate 6 and connected to the suction cup 7. A negative pressure plate 8 is slidably installed inside the negative pressure box 9. A cylinder 10 with its output end fixedly connected to the negative pressure plate 8 is installed on the top of the negative pressure box 9.

[0033] Specifically, when the wax block box is suctioned, the cylinder 10 at the top of the negative pressure box 9 is activated, which drives the negative pressure plate 8 to move to the top inside the negative pressure box 9, thereby reducing the air pressure inside the space below the cylinder 10 to form a negative pressure, and suctioning the space between the suction cup 7 and the top of the wax block box through the air hole 13, thereby adsorbing and positioning the wax block box.

[0034] The air circuit unit includes an air cylinder 5 fixedly installed on the top of the transfer plate 6 and connected to the sealing cavity, and a piston 11 that slides synchronously with the transfer plate 6 within the air cylinder 5.

[0035] Specifically, when the electric actuator 4 is activated, it drives the transfer plate 6, which is fixedly installed at the output end of the electric actuator 4, to move towards the wax block box. This causes the suction cups 7 arranged in an array at the bottom of the transfer plate 6 to fit against the top of the wax block box. During the descent of the transfer plate 6, the air cylinder 5, which is fixedly installed at the top of the transfer plate 6, descends synchronously. This causes the piston 11 at the bottom end of the limiting rod 12, which is fixedly installed at the bottom of the moving block 3, to move relative to the top of the air cylinder 5. This reduces the air pressure inside the space below the piston 11 to a negative pressure state, thereby evacuating the annular cavity that connects the air groove 14 and the air cylinder 5. This evacuates the sealed cavity through the annular cavity.

[0036] Furthermore, after the wax block box is quickly adsorbed and fixed, the drive electric push rod 4 drives the transfer plate 6 to rise and move out of the cell. During the rise of the transfer plate 6, the air cylinder 5 fixed on the top of the transfer plate 6 rises synchronously, so that the piston 11 at the bottom of the limit rod 12 fixed on the bottom of the moving block 3 moves relative to the bottom of the air cylinder 5, thereby increasing the air pressure inside the space below the piston 11, thereby inflating the annular cavity connected between the air groove 14 and the air cylinder 5, and thus inflating the sealed cavity through the annular cavity.

[0037] The suction area of ​​the suction cups 7 arranged in the bottom array of a single transfer plate 6 is smaller than the top area of ​​the wax block box.

[0038] The cabinet 1 is equipped with a lifting platform 2.

[0039] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A rapid retrieval and positioning cabinet for pathological paraffin blocks, characterized in that, include: Cabinet; A retrieval component that moves along the length of the cabinet includes: The transfer plate is equipped with a lifting mechanism and an array of suction cups arranged at the bottom of the transfer plate. The suction cups are used to grasp the wax block box by negative pressure adsorption. The array consists of a negative pressure suction unit set on top of the transfer plate and an air hole connecting the suction cup and the negative pressure suction unit. Air grooves evenly distributed on the walls of the pores; An arc-shaped elastic plate is located at the opening of the air groove to form a sealed cavity. The arc-shaped elastic plate includes a first arc-shaped portion close to the suction cup and a second arc-shaped portion away from the suction cup, and the length of the first arc-shaped portion is less than that of the second arc-shaped portion. The air passage unit connected to the sealed cavity is configured to change its internal air pressure in response to the lifting and lowering movement of the transfer plate, driving the arc-shaped elastic plate to adaptively deform, so as to form a gradually narrowing air extraction channel or a slow release channel that gradually expands from the arc apex to both sides within the air hole.

2. The pathological paraffin block rapid retrieval and positioning cabinet according to claim 1, characterized in that: As the transfer plate descends, a negative pressure is formed inside the air circuit unit to draw in the sealed cavity, causing the arc-shaped elastic plate to deform and indent towards the air groove wall, thereby increasing the channel area of ​​the air hole and forming a gradually narrowing air extraction channel.

3. The pathological paraffin block rapid retrieval and positioning cabinet according to claim 2, characterized in that: As the transfer plate rises, the air circuit unit inflates the sealing cavity, causing the arc-shaped elastic plate to bulge and deform towards the center of the air hole, thereby reducing the channel area of ​​the air hole and forming a slow-release channel that gradually expands from the arc apex to both sides.

4. The pathological paraffin block rapid retrieval and positioning cabinet according to claim 3, characterized in that: The arc-shaped elastic plate has an array of inverted scale structures on the side surface near the center of the air hole. The scale structure includes an elastic scale portion inclinedly disposed on the surface of the arc-shaped elastic plate and a rubber portion located between the elastic scale portion and the arc-shaped elastic plate, and the three form an air cavity communicating with the air groove.

5. A rapid retrieval and positioning cabinet for pathological paraffin blocks according to claim 4, characterized in that: The transfer plate descending air passage unit forms a negative pressure that simultaneously draws air from the sealing cavity and the air cavity, causing the elastic scale part to deform and compress the rubber part towards the arc-shaped elastic plate, so as to form a smooth inner wall air extraction channel in the air hole.

6. The pathological paraffin block rapid retrieval and positioning cabinet according to claim 5, characterized in that: As the transfer plate rises, the air circuit unit simultaneously inflates the sealing cavity and the air cavity, causing the elastic scale part to bulge and deform away from the arc-shaped elastic plate, and the rubber part to expand and deform to form an arc-shaped guide surface facing away from the suction cup.

7. The pathological paraffin block rapid retrieval and positioning cabinet according to claim 1, characterized in that: The negative pressure suction unit includes a negative pressure box that is fixedly installed on the top of the transfer plate and communicates with the suction cup. A negative pressure plate is slidably installed inside the negative pressure box, and a cylinder with its output end fixedly connected to the negative pressure plate is installed on the top of the negative pressure box.

8. The pathological paraffin block rapid retrieval and positioning cabinet according to claim 1, characterized in that: The air circuit unit includes an air cylinder fixedly installed on the top of the transfer plate and connected to the sealing cavity, and a piston that slides synchronously with the transfer plate inside the air cylinder.

9. A rapid retrieval and positioning cabinet for pathological paraffin blocks according to claim 1, characterized in that: The suction area of ​​the suction cups arranged in the bottom array of a single transfer plate is smaller than the top area of ​​the wax block box.

10. A rapid retrieval and positioning cabinet for pathological paraffin blocks according to claim 1, characterized in that: The cabinet is equipped with a lifting platform.

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