Blood smear manufacturing device

Abstract

The utility model provides a blood smear manufacturing device which comprises a slide guide rail fixing plate, a push piece moving assembly connected to one side of the slide guide rail fixing plate, a slide moving assembly movably connected to the slide guide rail fixing plate, a push piece movably connected to the push piece moving assembly and a slide placed above the slide moving assembly. The push piece is located above the slide, the push piece moving assembly drives the push piece to move up and down, and the slide moving assembly drives the slide to move in the transverse direction. When the pushing piece descends to make contact with the surface of the slide and continues to descend, the pushing piece can rotate along the rotating shaft, meanwhile, under the action of the torsional spring, the pushing piece is tightly pressed on the slide, the included angle between the pushing piece and the slide is changed through the descending height to conduct smearing action, and the pushing piece balance fixing frame can also rotate around the shaft. The contact line of the push piece and the slide can also rotate around the shaft, so that when the push piece or the slide is not horizontal due to assembly or processing precision, adaptive correction can be carried out, and the contact line of the push piece is tightly attached to the surface of the slide.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of measurement test technology, concretely relates to a blood smear making device. BACKGROUND

[0002] In the automatic detection process of medical instruments, blood smears need to be made by manual method, and the efficiency is relatively low, and the carelessness or misoperation of medical staff will lead to non-standard blood smear making, and single cell layer cannot be effectively formed for inspection, or cell breakage is caused by uneven pushing force, and subjective influence is large. When the current automatic smear instrument pushes the slide, the slide or the slide is not horizontal due to assembly or machining precision, which leads to that the blood cannot be uniformly spread on the slide, and the blood smear making precision is reduced.

[0003] Therefore, a blood smear making mechanism capable of self-adaptive adjustment to make the slide or the slide horizontal is required. SUMMARY

[0004] The utility model discloses to solve the problem that the slide or the slide is not horizontal in the blood smear making process, provide a kind of blood smear making device, and the slide balance fixing frame can also rotate around shaft, equivalent to the contact line of slide and slide also can rotate around shaft, so when the slide or the slide is not horizontal due to assembly or machining precision, it can be adaptively corrected, so that the slide contact line is tightly attached to the surface of the slide;Fast-release screw can be conveniently removed from the slide fixing structure, and the slide glass can be conveniently replaced.

[0005] The utility model provides a kind of blood smear making device, including slide guide rail fixed plate, the slide moving assembly of being connected in slide guide rail fixed plate one time, slide moving assembly movably connected on slide guide rail fixed plate, slide and slide placed above slide moving assembly movably connected on slide moving assembly, slide is located above slide, slide moving assembly drives slide to move up and down, and slide moving assembly drives slide to move along transverse;

[0006] The slide moving assembly includes a slide support metal plate connected to one side of the slide guide rail fixed plate and extending upward, a motor connection PCB plate connected to the top of the slide support metal plate, a slide lifting fixed block, a slide lifting assembly connected to the slide lifting fixed block, a slide balance fixing frame fixedly connected to the lower part of the back plate of the slide lifting assembly, a slide rotating fixing frame connected to the slide balance fixing frame through a set screw, two slide fixing blocks connected to the bottom inner side of the slide rotating fixing frame through set screw bolts, a slide pressing plate detachably connected to the lower end of the slide fixing block, and a torsion spring located between the two sides of the slide fixing block and the slide fixing block inside the slide fixing block.

[0007] The push piece is fixedly connected to the lower end of the push piece fixing block through the push piece pressing plate, the push piece lifting assembly drives the push piece balance fixing frame, the push piece rotating fixing frame and the push piece up-down movement, and the push piece rotating fixing frame drives the push piece to rotate around the plug bolt of the fixed push piece balance fixing frame.

[0008] The push piece lifting assembly includes a first screw rod servo motor connected with the output end screw rod nut and the push piece lifting fixing block, a push piece lifting motor fixing plate, a push piece lifting fixing back plate connected with the first screw rod servo motor in sequence, a tow chain located at the rear end of the push piece lifting fixing back plate, a first linear guide rail sliding block movably connected with the tow chain, a first linear guide rail and a push piece lifting sliding block fixing block connected with the first linear guide rail.

[0009] The first screw rod servo motor drives the push piece to move up and down, the push piece lifting sliding block fixing block is connected to one side of the push piece lifting fixing block, and the tow chain is connected with the push piece lifting fixing back plate and drives the push piece lifting fixing back plate to move up and down.

[0010] The first screw rod servo motor is a 35mm screw rod servo motor.

[0011] The push piece balance fixing frame is fixed to the side of the push piece lifting fixing back plate by using two quick-release screws.

[0012] The push piece lifting assembly further includes a push piece lifting limiting sheet metal connected to the upper and lower ends of the push piece lifting fixing back plate.

[0013] The push piece fixing block includes a push piece fixing block body provided with a central shaft and plug bolts connecting the two ends of the push piece fixing block body with the push piece rotating fixing frame shaft, and the push piece rotating fixing frame drives the push piece to rotate around the fixed plug bolt.

[0014] The torsion spring provides the force for the push piece to overturn downward.

[0015] The included angle between the push piece and the slide is 65°.

[0016] The slide moving assembly includes a slide motor fixing plate connected to one side of a slide guide rail fixing plate, a second screw rod servo motor connected with the slide motor fixing plate, a slide tray sliding block fixing block fixedly connected with the screw rod nut of the second screw rod servo motor, a slide tray fixing plate connected with the top of the slide tray sliding block fixing block, a linear guide rail and sliding block assembly connected with the rear end of the slide tray sliding block fixing block and a slide tray secondly connected to the side of the slide tray fixing plate.

[0017] The slide tray is located below the slide pushing and lifting assembly, the slide is embedded on the top of the slide tray, and the second screw rod servo motor drives the slide tray fixing plate, the slide tray and the slide to move transversely along the linear guide rail and the slide block assembly.

[0018] The slide tray slide block fixing block comprises a circular arc structure connected to the outside of the screw rod nut of the second screw rod servo motor and having an open rear end and a slide block fixing block connected to the top of the circular arc structure, and the slide block fixing block rear end is provided with a slide block mounting groove.

[0019] The linear guide rail and slide block assembly comprises a second linear guide rail slide block fixedly connected in the slide block mounting groove and a second linear guide rail movably connected with the second linear guide rail slide block; and the second linear guide rail is arranged transversely along the slide guide rail fixing plate.

[0020] The second screw rod servo motor drives the circular arc structure, the slide block fixing block and the second linear guide rail slide block to move transversely along the second linear guide rail, and the slide block fixing block drives the slide tray fixing plate, the slide tray and the slide to move transversely.

[0021] The slide moving assembly further comprises a limiting fixed metal plate and a photoelectric limiting sensor connected in sequence on the slide guide rail fixing plate.

[0022] The slide tray slide block fixing block further comprises a slide limiting metal plate extending downwardly from the bottom of the circular arc structure.

[0023] The limiting fixed metal plate and the photoelectric limiting sensor are both two in number and are respectively located at the two ends of the slide limiting metal plate.

[0024] The slide moving assembly further comprises a bearing seat connected on the slide guide rail fixing plate and a bearing connected in the bearing seat, and the bearing is movably connected with the screw rod tail end of the second screw rod servo motor.

[0025] The second screw rod servo motor is a 57 screw rod servo motor.

[0026] The slide moving assembly further comprises a bearing seat connected on the slide guide rail fixing plate and a bearing connected in the bearing seat, and the bearing is movably connected with the screw rod tail end of the second screw rod servo motor.

[0027] The slide pushing and balancing fixing frame can also rotate around the shaft, and the contact line of the slide pushing and balancing fixing frame and the slide can also rotate around the shaft, so that when the slide pushing or the slide is not horizontal due to assembly or machining precision, adaptive correction can be made, and the contact line of the slide pushing tightly abuts against the surface of the slide. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1isometric view of a blood smear making device;

[0029] Figure 2 front view of a blood smear making device;

[0030] Figure 3 right view of a blood smear making device;

[0031] Figure 4a schematic view of a slide with blood drop on a blood smear making device;

[0032] Figure 4b schematic view of a slide with blood drop on a blood smear making device;

[0033] Figure 4c schematic view of a slide with blood drop on a blood smear making device;

[0034] Figure 4d schematic view of a slide with blood drop on a blood smear making device;

[0035] Figure 4e schematic view of a slide with blood drop on a blood smear making device;

[0036] Figure 4f schematic view of a slide with blood drop on a blood smear making device.

[0037] Reference Signs:

[0038] 1. Glass slide guide rail fixing plate; 2. Slide moving assembly; 21. Slide support sheet metal; 22. Motor connection PCB board; 23. Slide lifting fixing block; 24. Slide lifting assembly; 241. First lead screw servo motor; 242. Slide lifting motor fixing plate; 243. Slide lifting fixing back plate; 244. Cable chain; 245. First linear guide slider; 246. First linear guide; 247. Slide lifting slider fixing block; 248. Slide lifting limit sheet metal; 25. Slide balance fixing frame; 26. Slide rotation fixing frame; 27. Slide fixing block; 271. Slide fixing block 1. Body; 272. Plug bolt; 28. Push plate pressure plate; 29. ​​Torsion spring; 3. Slide moving assembly; 31. Slide motor fixing plate; 32. Second lead screw servo motor; 33. Slide tray slider fixing block; 331. Arc structure; 332. Slide fixing block; 333. Slide limiting sheet metal; 34. Slide tray fixing plate; 35. Linear guide rail and slider assembly; 351. Second linear guide rail slider; 352. Second linear guide rail; 36. Slide tray; 37. Limit fixing sheet metal; 38. Photoelectric limit sensor; 39. Bearing seat; 3a. Bearing; 4. Push plate; 5. Slide. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0040] Example 1

[0041] like Figures 1 to 3 As shown, a blood smear preparation device includes a slide guide rail fixing plate 1, a slide pushing and moving assembly 2 connected to the slide guide rail fixing plate 1, a slide moving assembly 3 movably connected to the slide guide rail fixing plate 1, a pusher 4 movably connected to the pusher moving assembly 2, and a slide 5 placed above the slide moving assembly 3. The pusher 4 is located above the slide 5. The pusher moving assembly 2 drives the pusher 4 to move up and down, and the slide moving assembly 3 drives the slide 5 to move laterally.

[0042] The push piece moving assembly 2 comprises a push piece support plate 21 connected to one side of the slide rail fixed plate 1 and extending upward, a motor connecting PCB 22 connected to the top of the push piece support plate 21, a push piece lifting fixed block 23 connected to the motor connecting PCB 22, a push piece lifting assembly 24 connected to the push piece lifting fixed block 23, a push piece balance fixed frame 25 fixedly connected to the back plate of the push piece lifting assembly 24, a push piece rotating fixed frame 26 connected to the push piece balance fixed frame 25 through a set screw, two push piece fixed blocks 27 connected to the bottom inner side of the push piece rotating fixed frame 26 through set screw shafts on both sides, a push piece pressing plate 28 detachably connected to the lower end of the push piece fixed block 27, and a torsion spring 29 located between the push piece fixed blocks 27 on both sides in the interior of the push piece rotating fixed frame 26;

[0043] The push piece lifting assembly 24 comprises a first screw rod servo motor 241 with the output end screw rod nut connected to the push piece lifting fixed block 23, a push piece lifting motor fixed plate 242 connected to the first screw rod servo motor 241 in sequence, a push piece lifting fixed back plate 243, a drag chain 244 located at the rear end of the push piece lifting fixed back plate 243, a first linear guide rail sliding block 245 movably connected to the drag chain 244 in sequence, a first linear guide rail 246, a push piece lifting sliding block fixed block 247 connected to the first linear guide rail 246, and push piece lifting limiting plates 248 connected to the upper and lower ends of the push piece lifting fixed back plate 243;

[0044] The first screw rod servo motor 241 drives the push piece 4 to move up and down, the push piece lifting sliding block fixed block 247 is connected to one side of the push piece lifting fixed block 23, and the drag chain 244 is connected to the push piece lifting fixed back plate 243 and drives the push piece lifting fixed back plate 243 to move up and down;

[0045] The first screw rod servo motor 241 is a 35mm screw rod servo motor;

[0046] The push piece balance fixed frame 25 is fixed to the side of the push piece lifting fixed back plate 243 using two quick-release screws;

[0047] The push piece fixed block 27 comprises a push piece fixed block body 271 provided with a center shaft and set screw bolts 272 connecting the two ends of the push piece fixed block body 271 to the shaft of the push piece rotating fixed frame 26, and the push piece rotating fixed frame 26 drives the push piece 4 to rotate around the fixed set screw bolts 272;

[0048] The torsion spring 29 provides a force for the push piece 4 to overturn downward;

[0049] The included angle between the push piece 4 and the slide 5 is 65°;

[0050] The push piece 4 is fixedly connected to the lower end of the push piece fixing block 27 through the push piece pressing plate 28. The push piece lifting assembly 24 drives the push piece balance fixing frame 25, the push piece rotating fixing frame 26 and the push piece 4 to move up and down. The push piece rotating fixing frame 26 drives the push piece 4 to rotate around the plug screw bolt of the fixed push piece balance fixing frame 25.

[0051] The slide moving assembly 3 comprises a slide motor fixing plate 31 connected to one side of the slide guide rail fixing plate 1, a second screw rod servo motor 32 connected to the slide motor fixing plate 31, a slide tray sliding block fixing block 33 fixedly connected to a screw rod nut of the second screw rod servo motor 32, a slide tray fixing plate 34 connected to the top of the slide tray sliding block fixing block 33, a linear guide rail and sliding block assembly 35 connected to the rear end of the slide tray sliding block fixing block 33, a slide tray 36 secondly connected to the side of the slide tray fixing plate 34, a limiting fixing plate 37 and a photoelectric limiting sensor 38 sequentially connected to the slide guide rail fixing plate 1, a bearing seat 39 connected to the slide guide rail fixing plate 1 and a bearing 3a connected to the inside of the bearing seat 39.

[0052] The slide tray 36 is located below the push piece lifting assembly 24. The slide 5 is embedded on the top of the slide tray 36. The second screw rod servo motor 32 drives the slide tray fixing plate 34, the slide tray 36 and the slide 5 to move transversely along the linear guide rail and sliding block assembly 35.

[0053] The slide tray sliding block fixing block 33 comprises a circular arc structure 331 connected to the outside of the screw rod nut of the second screw rod servo motor 32 and having an opening at the rear end, a sliding block fixing block 332 connected to the top of the circular arc structure 331 and a slide limiting plate 333 extending downwardly and connected to the bottom of the circular arc structure 331. The rear end of the sliding block fixing block 332 is provided with a sliding block mounting groove.

[0054] The linear guide rail and sliding block assembly 35 comprises a second linear guide rail sliding block 351 fixedly connected in the sliding block mounting groove and a second linear guide rail 352 movably connected to the second linear guide rail sliding block 351. The second linear guide rail 352 is arranged transversely along the slide guide rail fixing plate 1.

[0055] The second screw rod servo motor 32 drives the circular arc structure 331, the sliding block fixing block 332 and the second linear guide rail sliding block 351 to move transversely along the second linear guide rail 352. The sliding block fixing block 332 drives the slide tray fixing plate 34, the slide tray 36 and the slide 5 to move transversely.

[0056] The limiting fixing plate 37 and the photoelectric limiting sensor 38 are both two in number and are respectively located at the two ends of the slide limiting plate 333.

[0057] The slide moving assembly 3 further comprises that the bearing 3a is movably connected to the screw rod end of the second screw rod servo motor 32.

[0058] The second lead screw servo motor 32 is a 57 lead screw servo motor.

[0059] The slide tray 36 is fixed to the slide tray fixing plate 34 with screws. The slide tray fixing plate 34 is fixed to the slide tray slider fixing plate 33 and fixed to the slide guide rail fixing plate 1 via the second linear guide rail 352. The second lead screw servo motor 32 is fixed to the slide motor fixing plate 31, which is fixed to the slide guide rail fixing plate 1. The lead screw nut is fixed to the slide tray slider fixing plate 33. The second lead screw servo motor 32 can drive the slide tray 36 to move laterally, moving to specific positions for adding blood samples and pushing slides.

[0060] The slide pusher 4 is placed into the slide pusher fixing block 27 and fixed by the slide pusher pressure plate 8; the slide pusher fixing block 27 is fixed to the slide pusher rotating fixing frame 26 using two bolts 9, and can rotate around the bolts 9. Two torsion springs 29 are installed on each side, applying a downward flipping force to maintain a 65-degree angle between the slide pusher 4 and the slide 5 on the slide tray 36; the slide pusher balancing fixing frame 25 uses one bolt to fix the slide pusher rotating fixing frame 26, allowing it to rotate within a certain range around the bolt 272, such as... Figure 3 As shown; the slide balance fixing bracket 25 is fixed to the slide lifting fixing back plate 243 using two quick-release screws. The first lead screw servo motor 241 is fixed together with the slide lifting motor fixing plate 16, the slide lifting fixing back plate 243, and the first linear guide rail 246; the lead screw nut of the first lead screw servo motor 241 is fixed to the slide lifting fixing block 23, and the first linear guide rail slider 245 is also indirectly fixed to it through the slide lifting slider fixing block 247, and fixed to the slide support sheet metal 21. The slide support sheet metal 21 is fixed to the glass slide guide rail fixing plate 1; the first lead screw servo motor 241 can drive the slide 4 to move up and down; when the slide 4 descends and contacts the surface of the glass slide 5 and continues to descend, the slide 4 will rotate along the rotating shaft. At the same time, under the action of the torsion spring 29, the slide 4 is pressed tightly against the glass slide 5, and the angle between the slide 4 and the glass slide 5 is changed by the height of descent, such as Figure 2 As shown, you can now begin the application process, such as... Figures 4a to 4f The process is shown; at this time, the pusher balance fixing frame 25 can also rotate around the axis, which means that the contact line between the pusher 4 and the glass slide 5 can also rotate around the axis. In this way, when the pusher 4 or the glass slide 5 is not horizontal due to assembly or processing accuracy, it can be adaptively corrected so that the contact line of the pusher 4 is in close contact with the surface of the glass slide 5.

[0061] In this embodiment, the lead of the first lead screw servo motor 241 is 3mm and the power is 10w, the diameter of the plug bolt 272 is 4mm, the material of the push plate pressure plate 28 is aluminum alloy, the lead of the second lead screw servo motor 32 is 26mm and the power is 50w, and the material of the push plate 4 is glass.

[0062] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A blood smear making device, characterized by: The utility model provides a slide glass moving device, including slide glass guide rail fixed plate (1), be connected in the slide glass guide rail fixed plate (1) once push piece mobile subassembly (2), movable connection in the slide glass guide rail fixed plate (1) on slide glass mobile subassembly (3), movable connection in the push piece mobile subassembly (2) on push piece (4) and place in the slide glass mobile subassembly (3) above slide glass (5), the push piece (4) is located slide glass (5) above, the push piece mobile subassembly (2) drives the push piece (4) and lift moves, the slide glass mobile subassembly (3) drives slide glass (5) and moves along the transverse direction, The push piece mobile subassembly (2) includes the push piece support sheet metal (21) that is connected in the slide glass guide rail fixed plate (1) one side and extends upwards, motor connection PCB board (22) respectively connected in the push piece support sheet metal (21) top, push piece lift fixed block (23), with push piece lift subassembly (24) that the push piece lift fixed block (23) is connected, with push piece balance fixed frame (25) that push piece lift subassembly (24) backboard lower part fixed connection, with push piece rotation fixed frame (26) that push piece balance fixed frame (25) is connected through the screw bolt, both sides are connected respectively through the screw bolt shaft in the push piece rotation fixed frame (26) bottom inner side push piece fixed block (27), detachable connection in the push piece fixed block (27) lower end push piece pressure plate (28) and the torsion spring (29) between the push piece rotation fixed frame (26) inside both sides with push piece fixed block (27) are located, The push piece (4) is fixedly connected in the push piece fixed block (27) lower end through the push piece pressure plate (28), the push piece lift subassembly (24) drives push piece balance fixed frame (25), push piece rotation fixed frame (26) and push piece (4) and moves up and down, push piece rotation fixed frame (26) drives push piece (4) and rotates around the screw bolt fixed push piece balance fixed frame (25).

2. A blood smear device according to claim 1, wherein: The push piece lift subassembly (24) includes the first screw rod servo motor (241) that output end screw rod nut is connected with the push piece lift fixed block (23), push piece lift motor fixed plate (242), push piece lift fixed backboard (243) that are connected in turn with the first screw rod servo motor (241), be located in the push piece lift fixed backboard (243) rear end tow chain (244), with first linear guide rail sliding block (245), first linear guide rail (246) and push piece lift sliding block fixed block (247) that are connected with the first linear guide rail (246) are movably connected in turn with the tow chain (244), The first screw rod servo motor (241) drives push piece (4) and moves up and down, the push piece lift sliding block fixed block (247) is connected in the push piece lift fixed block (23) one side, the tow chain (244) is connected with the push piece lift fixed backboard (243) and drives the push piece lift fixed backboard (243) and moves up and down.

3. A blood smear device according to claim 2, wherein: The first screw rod servo motor (241) is 35mm screw rod servo motor; The push piece balance fixing frame (25) is fixed on the side of the push piece lifting fixing back plate (243) by two quick release screws.

4. A blood smear device according to claim 2, wherein: The push piece lifting assembly (24) further comprises a push piece lifting limiting plate (248) connected to the upper and lower ends of the push piece lifting fixing back plate (243). The push piece fixing block (27) comprises a push piece fixing block body (271) provided with a central shaft and a jam bolt (272) connecting the two ends of the push piece fixing block body (271) with the push piece rotating fixing frame (26), and the push piece rotating fixing frame (26) drives the push piece (4) to rotate around the fixed jam bolt (272).

5. A blood smear device according to claim 1, wherein: The torsion spring (29) provides a force for the push piece (4) to overturn downward.

6. A blood smear device according to claim 1, wherein: The angle between the push piece (4) and the slide (5) is 65°.

7. A blood smear device according to claim 1, wherein: The slide moving assembly (3) comprises a slide motor fixing plate (31) connected to one side of the slide guide rail fixing plate (1), a second lead screw servo motor (32) connected with the slide motor fixing plate (31), a slide tray sliding block fixing block (33) fixedly connected with the screw nut of the second lead screw servo motor (32), a slide tray fixing plate (34) connected to the top of the slide tray sliding block fixing block (33), a linear guide rail and sliding block assembly (35) connected to the rear end of the slide tray sliding block fixing block (33), and a slide tray (36) connected to the side of the slide tray fixing plate (34). The slide tray (36) is located below the push piece lifting assembly (24), the slide (5) is embedded on the top of the slide tray (36), and the second lead screw servo motor (32) drives the slide tray fixing plate (34), the slide tray (36) and the slide (5) to move transversely along the linear guide rail and sliding block assembly (35).

8. A blood smear device according to claim 7, wherein: The slide tray sliding block fixing block (33) comprises a circular arc structure (331) connected to the outside of the screw nut of the second lead screw servo motor (32) and having an open rear end, and a sliding block fixing block (332) connected to the top of the circular arc structure (331), and the rear end of the sliding block fixing block (332) is provided with a sliding block mounting groove. The linear guide rail and sliding block assembly (35) comprises a second linear guide rail sliding block (351) fixedly connected in the sliding block mounting groove and a second linear guide rail (352) movably connected with the second linear guide rail sliding block (351); the second linear guide rail (352) is arranged along the transverse direction of the slide guide rail fixing plate (1). The second lead screw servo motor (32) drives the circular arc structure (331), the sliding block fixing block (332) and the second linear guide rail sliding block (351) to move transversely along the second linear guide rail (352), and the sliding block fixing block (332) drives the slide tray fixing plate (34), the slide tray (36) and the slide (5) to move transversely.

9. A blood smear device according to claim 8, wherein: The slide moving assembly (3) further comprises a limiting fixing plate (37) and a photoelectric limiting sensor (38) connected to the slide guide rail fixing plate (1) in sequence. The slide tray sliding block fixing block (33) further comprises a slide limiting metal plate (333) extending downward from the bottom of the circular arc structure (331); The number of the limiting fixing metal plates (37) and the photoelectric limiting sensors (38) is two respectively at both ends of the slide limiting metal plate (333).

10. A blood smear device according to claim 7, wherein: The slide moving assembly (3) further comprises a bearing seat (39) connected to the slide guide rail fixing plate (1) and a bearing (3a) connected to the inside of the bearing seat (39), and the bearing (3a) is movably connected to the end of the lead screw of the second lead screw servo motor (32). The second lead screw servo motor (32) is a 57 lead screw servo motor.

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