Band saw special for sectional plasticized specimens

Abstract

The present invention discloses a band saw special for tomographic plasticized specimens, belonging to the technical field of plasticized specimen equipment, including: a band saw machine, a push table device, a pressure roller device and a backrest device. The backrest device slides on the backrest slide table. The push table device is installed on the base. The pressure roller device includes a soft rubber roller, a telescopic support, a column, a spring, a through tube and a nut. The soft rubber roller is rotatably connected to the telescopic support. The column is installed on one side of the slide table. The through tube is fixed to the column. The telescopic support passes through the spring and the through tube. Both ends of the spring are fixedly connected to a first flange and a second flange respectively. The nut is threadedly connected to the telescopic support. The saw blade, the telescopic support and the column are arranged in a straight line and parallel. In the present invention, a soft rubber roller is arranged on one side of the saw blade, and a back plate reinforcing plate, a first support rod and a second support rod are arranged on the other side, ensuring that the thickness of each position of the plasticized specimen is uniform during slicing. The backrest is made of aluminum material with a cooling tube arranged inside to prevent the material from melting.

Description

Technical Field

[0001] The present invention belongs to the technical field of plastinated specimen equipment, and particularly relates to a band saw dedicated for tomographic plastinated specimens. Background Art

[0002] Biological plastination is a technique used in anatomy. Through four steps of fixation, dehydration, forced infiltration, and hardening, body fluids and fats are removed in a vacuum, and then replaced with polymers such as silicon and epoxy resin. The processed specimens no longer decay or have an odor, and most of the characteristics of the original samples are retained. Even the true appearance of human cells can be shown under a microscope. After tomographic sectioning, the plastinated specimens of organisms have clear textures and can intuitively display the body structures and organs of organisms, which have extremely high utilization value for medical teaching and research.

[0003] Ideally, the thinner the plastinated specimens are after tomographic sectioning, the better, and the thickness should be uniform. However, in existing plastinated specimen sectioning equipment, the thickness of the sectioned plastinated specimens is relatively thick. Affected by the processing equipment, the thickness of the upper and lower parts of the tomographic sections is uneven, and the thickness of the plastinated specimens in the feeding direction of the equipment is also uneven.

[0004] Chinese Patent (CN115635522A) discloses a tomographic anatomical cutting device for plastinated human specimens. In this patent, the plastinated specimen to be sectioned is placed on a push table, and the distance between the sliding block and the saw blade in the moving direction of the sliding block is the section thickness of the plastinated specimen. However, during the sectioning process, there is no limit in the normal direction when the saw blade cuts, and the thickness of the plastinated specimen in the feeding direction will be uneven. Summary of the Invention

[0005] In view of this, the present invention provides a band saw dedicated for tomographic plastinated specimens to solve the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] Band saw for special use in sectional plasticized specimens, comprising: a band saw machine, a push table device, a pressure roller device and a back plate device. A back plate slide and a base are arranged on the band saw machine. The back plate device slides on the back plate slide. The push table device is installed on the base. The push table device comprises a push table. The pressure roller device comprises a soft rubber roller, a telescopic bracket, a column, a spring, a through pipe and a nut. The soft rubber roller is rotatably connected to the telescopic bracket. The column is fixedly installed on one side of the slide. The through pipe is fixedly installed on the column. A first flange is arranged on the through pipe. A second flange is arranged on the telescopic bracket. The telescopic bracket passes through the spring and the through pipe and slides in the through pipe. Two ends of the spring are respectively fixedly connected to the first flange and the second flange. The nut is threadedly connected to one end of the telescopic bracket away from the soft rubber roller. The saw blade, the soft rubber roller, the telescopic bracket and the column are on a straight line.

[0008] Furthermore, a three-way positioning bearing is arranged on the band saw machine, and the saw blade is rotatably connected in the three-way positioning bearing.

[0009] Furthermore, the pressure roller device further comprises a pull rope and a hand-operated pull rope device. The hand-operated pull rope device is installed on the column. One end of the pull rope is wound in the hand-operated pull rope device, and the other end is fixedly connected to the telescopic bracket.

[0010] Furthermore, the push table device further comprises a push table bracket, a rack, a gear, a first sprocket, a transmission shaft, a second sprocket, a chain and a first motor. The push table bracket and the first motor are fixed on the base. The push table slides on the push table bracket. The rack is installed on the bottom end of the push table on the side close to the back plate device. The transmission shaft is rotatably installed on the side wall of the push table bracket. The gear and the first sprocket are fixedly installed on the transmission shaft. The gear and the rack are meshed and driven. The second sprocket is fixedly installed on the output end of the first motor. The chain is chain-driven between the first sprocket and the second sprocket.

[0011] Furthermore, the back plate device comprises a back plate, a lead screw and a hand wheel. The lead screw is threadedly connected to the back plate slide. One end of the lead screw is rotatably connected to the back plate. The hand wheel is fixedly installed on the end of the lead screw away from the back plate. The back plate slides on the back plate slide.

[0012] Furthermore, the backrest device further includes a first backrest reinforcement plate, a first support rod, and a second support rod. The first backrest reinforcement plate is installed on the side wall of the backrest. One end of the first support rod is fixedly connected to the lower edge of the first backrest reinforcement plate, and the other end slides in the band saw. The second support rod is obliquely arranged, with one end fixedly connected to the first support rod and the other end fixedly connected to the upper edge of the reinforcement plate. The soft rubber roller, the saw blade, the first support rod, and the second support rod are linearly distributed.

[0013] Furthermore, an inlet pipe and an outlet pipe are arranged at the top of the backrest. A serpentine cooling pipe is arranged inside the backrest, and the inlet pipe, the cooling pipe, and the outlet pipe are in pipeline connection.

[0014] Furthermore, the backrest is L-shaped, and a plurality of second backrest reinforcement plates are spacedly distributed on the backrest.

[0015] Furthermore, a frequency converter device is further included. The frequency converter device is installed on the base. A second motor is arranged on the band saw, and both the first motor and the second motor are electrically connected to the frequency converter device by wires.

[0016] Furthermore, a saw blade cooling device is further included. The saw blade cooling device includes a jet nozzle and an air compressor. The jet nozzle is fixedly installed on the backrest slide table and is aligned with the saw blade. The air compressor is installed on the base, and the jet nozzle is in pipeline connection with the air compressor.

[0017] The beneficial effects of the present invention are as follows:

[0018] In the present invention, the elastic force of the spring presses the soft rubber roller on the telescopic bracket against the side of the plastinated specimen, so that the plastinated specimen is closely attached to the backing plate device. As the push table feeds, the distance between the saw blade and the backing plate is ensured, that is, the thickness of the sectioned plastinated specimen is always consistent, ensuring the uniform thickness of the sectioned plastinated specimen; the three-way positioning bearing set on the band saw improves the stability of the saw blade; by rotating the hand-operated rope winder, winding the rope, compressing the spring, the soft rubber roller moves away from the plastinated specimen, reducing the thrust of the soft rubber roller on the plastinated specimen. Reversely rotating can increase the thrust of the soft rubber roller on the plastinated specimen, realizing the flexible adjustment of the thrust of the soft rubber roller on the plastinated specimen to adapt to plastinated specimens of different strengths and prevent the plastinated specimen from being damaged; the first motor drives the gear to rotate through the first sprocket, chain, second sprocket and transmission shaft, realizing the meshing transmission between the gear and the rack, and then realizing the uniform feeding of the push table carrying the plastinated specimen on the push table bracket, improving the quality of slicing; the back plate reinforcement plate, the first support rod and the second support rod prevent the backing plate from tilting, making the backing plate always parallel to the saw blade, avoiding the generation of an angle between the backing plate and the saw blade resulting in inconsistent upper and lower thicknesses of the sectioned plastinated specimen. The soft rubber roller, the saw blade, the first support rod and the second support rod are in a straight line, ensuring that the distance between the saw blade and the backing plate remains consistent when the plastinated specimen is sliced by the saw blade; the cooling pipe set in the backing plate prevents the material from melting; the frequency converter device controls the rotation speed of the first motor. Different rotation speeds are used for cutting plastinated specimens of different sizes to achieve the best cutting effect. The frequency converter device controls the rotation speed of the second motor, and according to different materials, different feeding speeds of the push table are realized, solving the problem in the prior art that the push table is manually pushed, the force and speed cannot be controlled evenly, and due to the particularity of the specimen material, the density and hardness will change multiple times at each feed; the air compressor provides compressed air for the air nozzles, which can blow the debris on the saw blade and cool the saw blade, improving the slicing ability of the saw blade and making the cutting surface smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0020] Figure 1 is the structural schematic diagram of a band saw dedicated to sectioned plastinated specimens Figure 1 .

[0021] Figure 2 is the front view of a band saw dedicated to sectioned plastinated specimens.

[0022] Figure 3 is the left view of a band saw dedicated to sectioned plastinated specimens.

[0023] Figure 4 It is a top view of a special band saw for sectional plastinated specimens.

[0024] Figure 5 It is a rear view of a special band saw for sectional plastinated specimens.

[0025] Figure 6 It is a structural schematic diagram of a special band saw for sectional plastinated specimens Figure 2 .

[0026] Among them, in the figure:

[0027] 10 - band saw machine, 11 - back plate slide, 12 - base, 13 - three - way positioning bearing, 14 - second motor, 15 - saw blade, 20 - push table device, 21 - push table, 22 - push table support, 23 - rack, 24 - gear, 25 - transmission shaft, 26 - chain, 27 - first motor, 30 - pressure roller device, 31 - soft rubber roller, 32 - telescopic support, 33 - column, 34 - spring, 35 - through pipe, 36 - nut, 37 - pull rope, 38 - hand - operated pull rope device, 40 - back plate device, 41 - back plate, 411 - inlet pipe, 412 - outlet pipe, 413 - second back plate reinforcement plate, 42 - lead screw, 43 - hand wheel, 44 - first back plate reinforcement plate, 45 - first support rod, 46 - second support rod, 50 - frequency converter device, 60 - saw blade cooling device, 61 - air jet nozzle, 62 - air compressor. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0029] Refer to the attached Figures 1-6As shown in the figure, the present invention provides a band saw dedicated to sectional plasticized specimens, including: a band saw machine 10, a push table device 20, a pressure roller device 30 and a backing plate device 40. A backing plate slide 11 and a base 12 are provided on the band saw machine 10. The backing plate device 40 slides on the backing plate slide 11. The push table device 20 is installed on the base 12. The push table device 20 includes a push table 21. The pressure roller device 30 includes a soft rubber roller 31, a telescopic bracket 32, a column 33, a spring 34, a through pipe 35 and a nut 36. The soft rubber roller 31 is rotatably connected to the telescopic bracket 32. The column 33 is fixedly installed on one side of the slide (in actual use, it can also be set to rotatably install the column 33 on the ground). The through pipe 35 is fixedly installed on the column 33. A first flange is provided on the through pipe 35. A second flange is provided on the telescopic bracket 32. The telescopic bracket 32 passes through the spring 34 and the through pipe 35 and slides in the through pipe 35. Both ends of the spring 34 are fixedly connected to the first flange and the second flange respectively. The nut 36 is threadedly connected to one end of the telescopic bracket 32 away from the soft rubber roller 31. The saw blade 15, the soft rubber roller 31, the telescopic bracket 32 and the column 33 are in a straight line. The plasticized specimen to be sliced is placed on the push table 21 and abuts tightly against the backing plate device. The elastic force of the spring 34 rolls the soft rubber roller 31 on the telescopic bracket 32 onto the side of the plasticized specimen, so that the plasticized specimen abuts tightly against the backing plate device 40. As the push table 21 advances, the distance between the saw blade 15 and the backing plate 41 is ensured, that is, the thickness of the sectional plasticized specimen is always consistent, ensuring the uniform thickness of the sectional plasticized specimen.

[0030] In a preferred embodiment, a three-way positioning bearing 13 is provided on the band saw machine 10. The saw blade 15 is rotatably connected in the three-way positioning bearing 13. The three-way positioning bearing 13 improves the stability of the saw blade 15.

[0031] In a preferred embodiment, the pressure roller device 30 further includes a pull rope 37 and a hand-operated pull rope device 38. The hand-operated pull rope device 38 is installed on the column 33. One end of the pull rope 37 is wound in the hand-operated pull rope device 38, and the other end is fixedly connected to the telescopic bracket 32. By rotating the hand-operated pull rope device 38 to wind the pull rope 37, the spring 34 is compressed, so that the soft rubber roller 31 moves away from the plasticized specimen, reducing the thrust of the soft rubber roller 31 on the plasticized specimen. Reversing the rotation can increase the thrust of the soft rubber roller 31 on the plasticized specimen, realizing the flexible adjustment of the thrust of the soft rubber roller 31 on the plasticized specimen to adapt to plasticized specimens of different strengths and prevent the plasticized specimens from being damaged.

[0032] In a preferred embodiment, the push table device 20 further includes a push table bracket 22, a rack 23, a gear 24, a first sprocket, a transmission shaft 25, a second sprocket, a chain 26, and a first motor 27. The push table bracket 22 and the first motor 27 are fixed on the base 12. The push table 21 slides on the push table bracket 22. The rack 23 is installed on the bottom end of the push table 21 on the side close to the back plate device 40. The transmission shaft 25 is rotatably installed on the side wall of the push table bracket 22. The gear 24 and the first sprocket are fixedly installed on the transmission shaft 25. The gear 24 and the rack 23 are engaged for transmission. The second sprocket is fixedly installed on the output end of the first motor 27. The chain 26 is chain-driven between the first sprocket and the second sprocket. The first motor 27 drives the gear 24 to rotate through the first sprocket, the chain 26, the second sprocket, and the transmission shaft 25, realizes the meshing transmission between the gear 24 and the rack 23, and further realizes the uniform feeding of the plasticized specimen carried by the push table 21 on the push table bracket 22, improving the quality of slicing.

[0033] In a preferred embodiment, the back plate device 40 includes a back plate 41, a lead screw 42, and a hand wheel 43. The lead screw 42 is threadedly connected to the back plate slide 11. One end of the lead screw 42 is rotatably connected to the back plate 41. The hand wheel 43 is fixedly installed at the end of the lead screw 42 away from the back plate 41. Rotating the hand wheel 43 makes the lead screw 42 rotate on the upper surface of the back plate slide 11, realizes the distance of the back plate 41 on the back plate slide 11, adjusts the distance between the saw blade 15 and the back plate 41, and realizes the adjustment of the slicing thickness of the plasticized specimen.

[0034] In a preferred embodiment, the back plate device 40 further includes a first back plate reinforcing plate 44, a first support rod 45, and a second support rod 46. The first back plate reinforcing plate 44 is installed on the side wall of the back plate 41. One end of the first support rod 45 is fixedly connected to the lower edge of the first back plate reinforcing plate 44, and the other end slides in the band sawing machine 10. The second support rod 46 is obliquely arranged, one end is fixedly connected to the first support rod 45, and the other end is fixedly connected to the upper edge of the reinforcing plate. The soft rubber roller 31, the saw blade 15, the first support rod 45, and the second support rod 46 are in a straight line. The back plate reinforcing plate, the first support rod 45, and the second support rod 46 prevent the back plate 41 from tilting, make the back plate 41 always parallel to the saw blade 15, and avoid the generation of an angle between the back plate 41 and the saw blade 15 resulting in inconsistent upper and lower thicknesses of the sliced plasticized specimen with a fault. The soft rubber roller 31, the saw blade 15, the first support rod 45, and the second support rod 46 being in a straight line ensures that the distance between the saw blade 15 and the back plate 41 remains consistent when the plasticized specimen is sliced by the saw blade 15.

[0035] In a preferred embodiment, an inlet pipe 411 and an outlet pipe 412 are provided at the top of the backing plate 41. The backing plate 41 is made of aluminum and is internally provided with cooling pipes distributed in a serpentine shape. The inlet pipe 411, the cooling pipes, and the outlet pipe 412 are connected in a pipeline. Coolant or cold water is introduced into the cooling pipes through the inlet pipe 411 to cool the backing plate 41 and prevent the plasticized specimen from melting during sectioning. In actual use, three backing plates 41 are designed in this device. The three backing plates 41 are fixedly connected side by side and are provided with independent inlet pipes 411, outlet pipes 412, and cooling pipes. The number of backing plates 41 can be set according to actual situations.

[0036] In a preferred embodiment, the backing plate 41 is L-shaped, and a plurality of second backplate reinforcement plates 413 are distributed at intervals on the backing plate 41. The second backplate reinforcement plates 413 improve the strength of the backing plate 41.

[0037] In a preferred embodiment, a special band saw for tomographic plasticized specimens further includes a frequency converter device 50. The frequency converter device 50 is installed on the base 12. A second motor 14 is provided on the band saw 10. The frequency converter device 50 is internally provided with a first frequency converter and a second frequency converter (routinely arranged, not shown in the figure). The first frequency converter and the second frequency converter are respectively electrically connected to the first motor 27 and the second motor 14. The first frequency converter controls the rotation speed of the first motor 27. Different rotation speeds are used to cut plasticized specimens of different sizes to achieve the best cutting effect. The second frequency converter controls the rotation speed of the second motor 14 to achieve different feed speeds of the push table 21 according to different materials, solving the problem in the prior art that the push table 21 is manually pushed, and the force and speed cannot be controlled evenly. In addition, due to the particularity of the specimen material, the density and hardness at each place will change multiple times during a single feed.

[0038] In a preferred embodiment, a special band saw for tomographic plasticized specimens further includes a saw blade cooling device 60. The saw blade cooling device 60 includes a jet nozzle 61 and an air compressor 62. The jet nozzle 61 is fixedly installed on the backing plate slide 11 and is aligned with the saw blade 15. The air compressor 62 is installed on the base 12. The jet nozzle 61 is connected to the air compressor 62 in a pipeline. The air compressor 62 provides compressed air for the jet nozzle 61, which can blow the debris on the saw blade 15 and cool the saw blade 15, improving the sectioning ability of the saw blade 15 and making the cutting surface smoother.

[0039] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, please refer to the description in the method section.

[0040] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The special band saw for tomographic plasticized specimens is characterized in that Including: A band saw, a push table device, a pressure roller device and a fence device. A fence slide and a base are provided on the band saw. The fence device slides on the fence slide. The push table device is installed on the base. The push table device includes a push table. The pressure roller device includes a soft rubber roller, a telescopic bracket, a column, a spring, a through pipe and a nut. The soft rubber roller is rotatably connected to the telescopic bracket. The column is fixedly installed on one side of the slide. The through pipe is fixedly installed on the column. A first flange is provided on the through pipe. A second flange is provided on the telescopic bracket. The telescopic bracket passes through the spring and the through pipe and slides in the through pipe. The two ends of the spring are respectively fixedly connected to the first flange and the second flange. The nut is threadedly connected to one end of the telescopic bracket away from the soft rubber roller. The saw blade, the soft rubber roller, the telescopic bracket and the column are in a straight line; The pressure roller device further includes a pull rope and a hand-operated pull rope device. The hand-operated pull rope device is installed on the column. One end of the pull rope is wound in the hand-operated pull rope device, and the other end is fixedly connected to the telescopic bracket; The fence device includes a fence, a lead screw and a hand wheel. The lead screw is threadedly connected on the fence slide. One end of the lead screw is rotatably connected to the fence. The hand wheel is fixedly installed at one end of the lead screw away from the fence. The fence slides on the fence slide; An inlet pipe and an outlet pipe are provided at the top of the fence. A serpentine-distributed cooling pipe is provided inside the fence. The inlet pipe, the cooling pipe and the outlet pipe are in pipeline communication; It further includes a saw blade cooling device. The saw blade cooling device includes an air jet nozzle and an air compressor. The air jet nozzle is fixedly installed on the fence slide and is aligned with the saw blade. The air compressor is installed on the base. The air jet nozzle is in pipeline communication with the air compressor.

2. The bandsaw for special use in tomoplastic specimens according to claim 1, characterized in that A three-way positioning bearing is provided on the band saw. The saw blade is rotatably connected in the three-way positioning bearing.

3. The band saw dedicated to tomoplastic specimens according to claim 1, characterized in that, The push table device further includes a push table bracket, a rack, a gear, a first sprocket, a transmission shaft, a second sprocket, a chain and a first motor. The push table bracket and the first motor are fixed on the base. The push table slides on the push table bracket. The rack is installed on the bottom end of the push table on the side close to the fence device. The transmission shaft is rotatably installed on the side wall of the push table bracket. The gear and the first sprocket are fixedly installed on the transmission shaft. The gear meshes with the rack for transmission. The second sprocket is fixedly installed at the output end of the first motor. The chain is in chain transmission between the first sprocket and the second sprocket.

4. The band saw dedicated to sectional plasticized specimens according to claim 1, characterized in that, The backrest device further includes a first backplate reinforcement plate, a first support rod, and a second support rod. The first backplate reinforcement plate is installed on the side wall of the backrest. One end of the first support rod is fixedly connected to the lower edge of the first backplate reinforcement plate, and the other end slides in the band saw. The second support rod is obliquely arranged, with one end fixedly connected to the first support rod and the other end fixedly connected to the upper edge of the reinforcement plate. The soft rubber roller, the saw blade, the first support rod, and the second support rod are linearly distributed.

5. The band saw dedicated to tomoplastic specimens according to claim 1, characterized in that, The backrest is L-shaped, and a plurality of second backplate reinforcement plates are spaced apart on the backrest.

6. The bandsaw for special use in sectional plasticized specimens according to claim 3, characterized in that, It further includes a frequency converter device. The frequency converter device is installed on the base. A second motor is provided on the band saw, and both the first motor and the second motor are electrically connected to the frequency converter device by wires.

Images