CN115431311A - Section device for biological medicine experiments - Google Patents

Abstract

The invention relates to the technical field of experimental slicing equipment, in particular to a slicing device for a biological medicine experiment, which comprises a base, wherein one end of the base is fixedly connected with a slicer main body, one end of the slicer main body is provided with a backspacing chuck, the top surface of the other end of the base is provided with a recovery tank, the bottom surface of the recovery tank is fixedly connected with a linear motor, the top surface of the moving end of the linear motor is detachably and fixedly connected with a cutter mechanism, and the cutter mechanism comprises a clamping seat. According to the wax block cutting device, due to the arrangement of the cutter mechanism, when the retraction chuck moves downwards, the cutter holder below stretches out to cut a wax block from bottom to top, the cutter holder above retracts, interference is avoided, when the retraction chuck moves upwards, the cutter holder above stretches out to cut the wax block from top to bottom, so that adjacent cut pieces on the wax block are mutually connected to form a zigzag strip instead of independent cut pieces, the cut pieces are not easy to break, a plurality of cut pieces are convenient to transfer at one time, the operation is convenient, and the repeated labor is reduced.

Description

Slicing device for biomedical experiments

technical field

The invention relates to the technical field of slicing equipment, in particular to a slicing device for biomedical experiments.

Background technique

When making tissue slices for microscopic observation, the tissue is generally processed and sealed with wax in a half-buried box to make a wax block, and the wax block is sliced by a wax block cutting machine to slice the tissue and cut into pieces. The good wax slices are clamped on slide glass and cover glass after rinsing and other treatments to complete the production of tissue slices. When cutting the wax slices through a slicer, because the wax slices are thin, generally use a brush or a brush to cut the slices. The wax slices are transferred from the knife holder to the rinse pool. When the existing cutting machine cuts the wax pieces, in order to prevent the slices from accumulating at the knife edge and forming a stack, it is necessary to hold a brush and use the brush when turning the rocker for cutting. Stick the ends of the strips and pull the strips outward to avoid bunching.

Because the existing cutting machine cuts through the cutting edge of the knife seat through the wax block completely, the slices are independent of each other after cutting, and the two wax slices only rely on the sticky adhesion of the wax itself to form strips. The slice strips are easy to break, and it is difficult to form slices. Strips affect the slicing process, and it is not convenient for the operator to transfer the slices, thereby affecting the efficiency of slicing. A cutting machine that is convenient for forming slicing strips is needed.

Contents of the invention

In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a biomedical experiment slicing device, through the setting of the knife mechanism, when the retracting chuck moves down, the knife seat below protrudes from the bottom to the top of the wax block When cutting, the upper knife seat retracts to avoid interference. When the retracting chuck moves up, the upper knife seat stretches out to cut the wax block from top to bottom, so that the slices cut from the wax block are adjacent to each other. It is connected with each other in zigzag strips instead of separate pieces, so that it is convenient to transfer multiple slices at a time, which is convenient for operation, reduces duplication of labor, and reduces the risk of slice damage caused by slice transfer, and compared with a single set of knives Seat, slice efficiency is higher.

The purpose of the present invention can be achieved through the following technical solutions:

A slicing device for biomedical experiments, comprising a base, one end of the base is fixedly connected to a microtome main body, one end of the microtome main body is equipped with a retracting chuck, and a recovery groove is opened on the top surface of the other end of the base , the bottom surface of the recovery tank is fixedly connected with a linear motor, and the top surface of the moving end of the linear motor is detachably connected with a cutter mechanism, and the cutter mechanism includes a deck, and the middle position of the top surface of the deck is fixed with a Transmission module 2, one end of the main body of the slicer is fixedly connected with transmission module 1, and the transmission module 1 enables the transmission between the retracting chuck and the transmission module 2, and both sides of the top surface of the deck are fixedly connected with side A support frame, one end of the side support frame is fixedly connected to a side wall and a transmission module 3 is fixedly connected, and the top of the transmission module 3 is connected to a rubbing wheel for transmission, and the bottom end of the two side support frames and the bottom end Both are provided with fixed plates, and the side walls of the two fixed plates close to each other are fixedly connected with knife holders, a mobile module is arranged between the rubbing wheel and the fixed plates, and the positions on both sides of the side walls of the side support frame are When the two tool holders are separated from each other to the farthest distance, move the tool holder towards the wax block, and cut and trim the bottom and top of the wax block so that both ends of the wax block are neat. When the collet moves down, the lower knife seat stretches out to cut the wax block from bottom to top; when the retracting chuck moves up, the upper knife seat stretches out to cut the wax block from top to bottom, so that the wax The slices cut from the block are connected to each other in zigzag strips instead of separate slices, so that it is convenient to transfer multiple slices at a time, which is convenient for operation, reduces duplication of labor, and reduces the damage of slices caused by slice transfer. Risk, and compared with a single set of knife holders, the slicing efficiency is higher.

It further lies in that: the first transmission module includes two single-groove pulleys, and the two single-groove pulleys are respectively located below and above the retreat chuck, the single-groove pulley is rotatably connected with the main body of the slicer, and the two single-groove pulleys are A belt is connected to the single-slot pulley, and a collar is fixedly connected to one side of the inner wall of the belt. The side wall of the pulley is fixedly connected with a rib. When the retracting chuck moves down, the single-groove pulley is driven to rotate forward through the collar and the belt, and the single-groove pulley drives the rib to rotate.

Further, the transmission module 2 includes an end plate, the bottom end of the end plate is fixedly connected to the top surface of the deck, the inner side wall of the end plate is rotatably sleeved with a sleeve, and the sleeve is slidingly inserted into the edge rod. Then, the position between the top surfaces of the card base is rotatably connected with a double-groove pulley, the top surface of the double-groove pulley is fixedly connected with a bevel gear 2, and one end of the sleeve is fixedly sleeved with a bevel gear 1, The bevel gear 1 and the bevel gear 2 mesh with each other, the rib rod drives the sleeve to rotate, and the sleeve drives the double-groove pulley to rotate through the bevel gear 1 and the bevel gear 2.

Further, the transmission module 3 includes a pulley 1 and a round rod, one end of the round rod is rotatably connected to the middle position of the side wall of the side support frame at the adjacent position, the pulley 1 is fixedly socketed with the round rod, and the Two pulleys are installed on both sides of the top surface of the deck corresponding to the position below the first pulley, and the second pulley guides the transmission belt to avoid interference between the transmission belt and the side support frame. The drive belt is connected between the drive belts, and the rubbing wheel is fixedly socketed with the other end of the round bar in the adjacent position. The double-groove pulley drives the pulley to rotate through the drive belt, and the pulley drives the rubbing wheel to rotate through the round bar.

Further, the mobile module includes a second fixing part, the second fixing part is fixedly connected to the side wall of the adjacent side support frame, the top surface of the second fixing part is provided with a chute, and the inner wall of the chute of the second fixing part Slidingly connected with a slide plate, the side wall of the slide plate close to the rubbing wheel is extruded and contacted with the rubbing wheel, the two ends of the other side wall of the slide plate are fixedly connected with slide bars, and the outside of the second fixing part is provided with a fixed Part one, the fixed part one is slidably connected with the side wall of the side support frame, the fixed part one is slidably connected with the fixed plate at the adjacent position, one end of the sliding rod extends outwards and penetrates the adjacent fixed plate, and slides The rod is slidably connected with the corresponding fixed plate, and the rubbing wheel drives the two sliding plates to move towards each other through friction, and a sliding plate located at the bottom side of the rubbing wheel slides towards the main body of the slicer, and drives the fixed plate and the knife seat located below through the sliding rod Move toward the retracting chuck until the slide plate touches one end of the chute in the second fixing part and stop, so that when the retracting chuck moves down, the tool seat at the bottom moves against the retracting chuck for a certain distance and stops, and it is located at the top The tool holder moves a certain distance away from the retracting chuck and stops.

It further lies in that: the limiting assembly includes a limiting rod, the two ends of the annular outer wall of the limiting rod are both rotatably sleeved with an outer limiting sleeve, and the two ends of the outer wall of the limiting rod are located at the ends of the outer limiting sleeve. One side of the position is movably socketed with a moving kit, and the two ends of the outer wall of the limit rod are located at one side of the moving kit, and both ends of the moving kit are rotated and socketed with an inner limit sleeve, and the inner limit sleeve and the outer limit sleeve One end is fixedly connected to the side wall of the side support frame in the adjacent position, the moving sleeve is fixedly connected to the fixed piece in the adjacent position, and the limit rod in one of the four limit components is a two-way screw rod, And there are threads on the inner wall of the two moving sets on the two-way screw, and the two-way screw is screwed and connected with the corresponding two moving sets. When the two-way screw is rotated, the two moving sets on the two-way screw drive the two on the same side. As soon as the fixed parts deviate from each other, until the moving kit contacts and interferes with the outer limit sleeve, the two fixed plates are driven to move away from each other, and the position of the moving kit is limited by the inner limit sleeve and the outer limit sleeve, thereby limiting the fixed plate and the outer limit sleeve. The position where the tool holder moves up and down.

Further, a clamp is fixedly connected to the top surface of the moving end of the linear motor, and the bottom end of the card holder is detachably and fixedly engaged with the moving end of the linear motor through the clamp, so as to facilitate disassembly and assembly of the card holder.

Further, among the two tool seats, the distance from the upper tool seat to the side of the corresponding fixed plate is smaller than the distance from the lower tool seat to the corresponding side of the fixed plate, and the retracting chuck will retreat when it starts to move up Move up vertically after a certain distance, and the distance between the upper knife seat and the main body of the microtome is smaller than the distance between the lower knife seat and the main body of the microtome when it is extended, so that the upper knife seat is opposite to the retracting chuck. The retraction distance when moving up is offset, so that when the retracting chuck drives the wax block to move upward, the upper knife seat can cut the wax block.

Beneficial effects of the present invention:

1. Through the setting of the tool mechanism, when the two knife holders are separated from each other and moved to the farthest distance, move the knife holder towards the wax block, and cut and trim the bottom and top of the wax block so that the two ends of the wax block are neat , when the retracting chuck moves down, the lower knife seat stretches out to cut the wax block from bottom to top, and the upper knife seat retracts to avoid interference. When the retracting chuck moves up, the upper knife The seat protrudes to cut the wax block from top to bottom, so that the slices cut from the wax block are connected to each other in zigzag strips instead of being separated into pieces, so that it is convenient to transfer multiple slices at a time, which is convenient for operation. Reduce duplication of labor, while reducing the risk of slice damage caused by slice transfer;

2. Through the setting of the two knife holders, the swinging rocker drives the return chuck to move up and down, and the two knife holders respectively cut the wax block once, and compared with a single set of knife holders, the slicing efficiency is higher.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is a schematic diagram of the position of the linear motor in the present invention;

Fig. 3 is a schematic diagram of a position of the transmission module in the present invention;

Fig. 4 is a structural schematic diagram of a transmission module in the present invention;

Fig. 5 is a structural schematic diagram of a cutter mechanism in the present invention;

Fig. 6 is a schematic diagram of the internal structure of the cutter mechanism in the present invention;

Fig. 7 is a schematic structural view of the side support frame of the present invention;

Fig. 8 is a schematic diagram of the structure of the cutting state of the wax block in the present invention.

In the figure: 100, base; 110, slicer main body; 111, retract chuck; 120, recovery tank; 130, linear motor; 140, transmission module one; 141, single groove pulley; 142, belt; 143, sleeve Ring; 144, rib; 200, cutter mechanism; 210, deck; 220, transmission module two; 221, sleeve; 222, bevel gear one; 223, bevel gear two; 224, double groove pulley; 225, end Plate; 230, transmission module three; 231, transmission belt; 232, pulley one; 233, round rod; 234, pulley two; 240, side support frame; 250, fixed plate; Mobile module; 271, fixed piece one; 272, fixed piece two; 273, slide plate; 274, slide bar; 280, limit component; 281, limit rod; 2811, two-way screw; Inner limit cover; 284, mobile kit.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to Fig. 1-8, a kind of slicing device for biomedical experiments includes a base 100, one end of the base 100 is fixedly connected with a slicer main body 110, and one end of the slicer main body 110 is equipped with a retracting chuck 111, and the base 100 The other end of the top surface is provided with a recovery groove 120, the bottom surface of the recovery groove 120 is fixedly connected with a linear motor 130, and the top surface of the moving end of the linear motor 130 is detachably connected with a cutter mechanism 200, and the cutter mechanism 200 includes a deck 210, and the deck The middle position of the top surface of 210 is fixedly connected with transmission module 2 220 , and one end of slicer main body 110 is fixedly connected with transmission module 1 140 , and transmission module 1 140 enables the transmission between retracting chuck 111 and transmission module 2 220 , and the card holder 210 Both sides of the top surface of the top surface are fixedly connected with side support frame 240, and one end of side support frame 240 is fixedly connected with a side wall and is fixedly connected with transmission module three 230, and the top transmission connection of transmission module three 230 is connected with rubbing wheel 260, two side support A fixed plate 250 is arranged between the bottom end and the bottom end of the frame 240, and a knife seat 251 is fixedly connected to the side walls of the two fixed plates 250 close to each other, and a mobile module 270 is arranged between the rubbing wheel 260 and the fixed plate 250. The position on both sides of the side wall of the side support frame 240 is fixedly connected with the limit assembly 280. When the two knife holders 251 are separated from each other to the farthest distance, the knife holder 251 is moved towards the wax block, and the bottom end of the corresponding wax block is and the top are cut and trimmed so that both ends of the wax block are neat. When the retracting chuck 111 moves down, the knife seat 251 below stretches out to cut the wax block from bottom to top. When the retracting chuck 111 moves up , the knife seat 251 located at the top stretches out and cuts the wax block from top to bottom, so that the slices cut from the wax block are adjacent to each other and form zigzag strips instead of separate sheets, thereby facilitating multiple transfers at one time. Each slice is convenient to operate, reduces repeated labor, and reduces the risk of slice damage caused by slice transfer, and compared with a single set of knife holders 251, the slice efficiency is higher.

The first transmission module 140 includes two single-groove pulleys 141, and the two single-groove pulleys 141 are respectively located below and above the retraction chuck 111, the single-groove pulley 141 is rotatably connected with the slicer main body 110, and the two single-groove pulleys A belt 142 is connected between the pulleys 141, and the inner wall of one side of the belt 142 is fixedly connected with a collar 143. The collar 143 is slidingly socketed with the arm of the retracting chuck 111, and a single groove belt located below A rib 144 is fixedly connected to the side wall of the wheel 141. When the retracting chuck 111 moves down, the single-groove pulley 141 is driven to rotate forward by the collar 143 and the belt 142, and the single-groove pulley 141 drives the rib 144 to rotate. The transmission module 2 220 includes an end plate 225, the bottom of the end plate 225 is fixedly connected to the top surface of the card holder 210, the inner side wall of the end plate 225 is rotatably sleeved with a sleeve 221, the sleeve 221 is slidably inserted into the edge rod 144, and the card The position between the top surfaces of seat 210 is rotationally connected with double-groove pulley 224, and the top surface of double-groove pulley 224 is fixedly connected with bevel gear two 223, and one end of sleeve 221 is fixedly sleeved with bevel gear one 222, bevel gear one 222 meshes with bevel gear 2 223, rib 144 drives sleeve 221 to rotate, sleeve 221 drives double groove pulley 224 to rotate through bevel gear 1 222 and bevel gear 2 223, transmission module 3 230 includes pulley 1 232 and round rod 233, one end of the round bar 233 is rotatably connected with the middle position of the side wall of the side support frame 240 in the adjacent position. Two pulleys 234 are installed on both sides, and the second pulley 234 guides the transmission belt 231 to avoid interference between the transmission belt 231 and the side support frame 240. The transmission belt 231 is connected between the first pulley 232, the two second pulleys 234 and the double-groove pulley 224. The rubbing wheel 260 is fixedly socketed with the other end of the round bar 233 of the adjacent position, and the double groove pulley 224 drives the pulley one 232 to rotate by the transmission belt 231, and the pulley one 232 drives the rubbing wheel 260 to rotate by the round bar 233.

The mobile module 270 includes a fixing part 272, the fixing part 272 is fixedly connected with the side wall of the adjacent side support frame 240, the top surface of the fixing part 272 is provided with a chute, and the inner wall of the chute of the fixing part 272 is slidably connected with a Sliding plate 273, the side wall of sliding plate 273 close to rubbing wheel 260 is squeezed contact with rubbing wheel 260, the other side wall two ends of sliding plate 273 are all fixedly connected with slide bar 274, and the outside of fixing part two 272 is all provided with fixing part one. 271, the first fixing piece 271 is slidably connected with the side wall of the side support frame 240, the first fixing piece 271 is slidably connected with the fixing plate 250 at the adjacent position, one end of the sliding rod 274 extends outwards and penetrates the adjacent fixing plate 250, and the sliding rod 274 is slidably connected with the corresponding fixed plate 250, and the rubbing wheel 260 drives the two slide plates 273 to move toward each other through friction, and a slide plate 273 located at the bottom side of the rubbing wheel 260 slides towards the direction of the slicer main body 110, and the slide bar 274 drives the slide bar 274 located at The fixed plate 250 and the tool seat 251 below move towards the retracting chuck 111 until the slide plate 273 contacts one end of the chute in the second fixture 272 and stops, so that when the retracting chuck 111 moves down, the tool seat 251 located below Move a certain distance toward the retracting collet 111 and stop, and the knife seat 251 located above moves away from the retracting collet 111 and stops for a certain distance.

The limit assembly 280 includes a limit rod 281, the two ends of the annular outer wall of the limit rod 281 are rotatably sleeved with an outer limit sleeve 282, and the two ends of the outer wall of the limit rod 281 are located on one side of the outer limit sleeve 282. All movable sleeves are connected with a moving sleeve 284, and the two ends of the outer side wall of the limit rod 281 are located at one side of the moving sleeve 284, and the inner limit sleeve 283 is connected with an inner limit sleeve 283, one end of the inner limit sleeve 283 and the outer limit sleeve 282. All are fixedly connected with the side wall of the side support frame 240 in the adjacent position, the moving sleeve 284 is fixedly connected with the fixed piece 1 271 in the adjacent position, and the limit rod 281 in one limit assembly 280 in the four limit assemblies 280 is The two-way screw 2811, and the inner wall of the two moving sleeves 284 on the two-way screw 2811 are provided with threads, the two-way screw 2811 is screwed and connected with the corresponding two moving sleeves 284, and the two-way screw 2811 is rotated to move through the two-way screw 2811. The sleeve 284 drives the two fixed parts 1 271 on the same side to move away from each other until the moving sleeve 284 contacts and interferes with the outer limit sleeve 282, thereby driving the two fixed plates 250 to move away from each other, through the inner limit sleeve 283 and the outer limit sleeve. The sleeve 282 restricts the position of the moving sleeve 284 , thereby restricting the vertical movement of the fixed plate 250 and the knife seat 251 .

The top surface of the moving end of the linear motor 130 is fixedly connected with a clamp, and the bottom end of the card holder 210 is detachably and fixedly connected to the moving end of the linear motor 130 through the clamp, so that the card holder 210 can be easily disassembled. The two tool holders 251 are located at the upper position The distance from the tool seat 251 to the side of the corresponding fixed plate 250 is smaller than the distance from the lower tool seat 251 to the side of the corresponding fixed plate 250. When the retraction chuck 111 starts to move up, it will retreat for a certain distance and then move up vertically. And the knife seat 251 that is positioned at the top is stretched out and the distance of microtome main body 110 is less than the distance of the knife seat 251 of the bottom and the distance of microtome main body 110 when stretching out, thereby makes the knife seat 251 of top move up to retract chuck 111 When the retreat distance is offset, when the retreat chuck 111 drives the wax block to move up, the knife seat 251 above can cut the wax block.

Working principle: When in use, clamp and fix the wax block on the retracting chuck 111, turn the two-way screw 2811, and drive the two fixed parts 271 on the same side to move away from each other through the moving sleeve 284 on the two-way screw 2811. The sleeve 284 contacts and interferes with the outer limit sleeve 282, thereby driving the two fixed plates 250 to move away from each other, turning the rocker on the microtome main body 110, so that the retreat chuck 111 moves to the lowest end, and starts the linear motor 130 to make the linear The motor 130 drives the tool mechanism 200 to move toward the retracting chuck 111, the knife seat 251 located at the lower position contacts the wax block, the blade on the knife seat 251 cuts off the bottom of the wax block, and the linear motor 130 drives the tool mechanism 200 times Retreat, turn the rocker to make the retract chuck 111 move to the topmost position, the linear motor 130 will drive the cutter mechanism 200 forward, cut and trim the top of the wax block, realize the trimming of the length of the wax block, and cut different wax blocks into Fix the length, rotate the two-way screw rod 2811 in the opposite direction, so that the moving sleeve 284 contacts the inner limit sleeve 283, and the two fixing plates 250 are driven close to each other through the fixing piece 1 271, and the two knife holders 251 are close to each other;

Turn the rocker to make the retraction chuck 111 move up and down. When the retraction chuck 111 moves down, the single-groove pulley 141 is driven to rotate forward through the collar 143 and the belt 142, and the single-groove pulley 141 drives the sleeve through the rib 144. The barrel 221 rotates forward, the sleeve 221 drives the double-groove belt pulley 224 to rotate through the bevel gear 1 222 and the bevel gear 2 223, the double-groove pulley 224 drives the pulley 1 232 to rotate through the transmission belt 231, and the pulley 1 232 drives the rubbing wheel through the round rod 233 260 rotates, the rubbing wheel 260 drives the two slide plates 273 to move towards each other through friction, and a slide plate 273 located at the bottom side of the rubbing wheel 260 slides towards the direction of the main body 110 of the slicer, and drives the fixed plate 250 and The knife seat 251 moves toward the retracting chuck 111 until the sliding plate 273 contacts one end of the chute in the second fixture 272 and stops, so that when the retracting chuck 111 moves down, the lower knife seat 251 leans against the retracting chuck 111 moves a certain distance and stops, and the knife seat 251 located at the top moves away from the retracting chuck 111 and stops for a certain distance, and continues to move down with the retracting chuck 111, slipping between the rubbing wheel 260 and the slide plate 273, and the knife seat below 251 cuts the wax block from bottom to top, but due to the position limitation of the knife seat 251, the blade on the knife seat 251 below does not completely pass through the wax block. The upper knife seat 251 stretches out to cut the wax block from top to bottom, and the blade located at the top position does not completely pass through the wax block, so that the slices cut on the wax block are connected to each other and form zigzag strips instead of being formed separately. slices, so that it is convenient to transfer multiple slices at one time, which is convenient to operate, reduces repeated labor, and reduces the risk of slice damage caused by slice transfer. Compared with the single-set knife holder 251, the slice efficiency is higher, and the slice strips are transferred to the rinse pool. Finally, the slices were stretched in water, and the two adjacent slices were separated by tweezers.

In the description of this specification, descriptions with reference to the terms "one embodiment", "example", "specific example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment of the present invention. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above content is only an example and description of the present invention. Those skilled in the art will make various modifications or supplements to the described specific embodiments or replace them in similar ways, as long as they do not deviate from the invention or exceed the rights of the present invention. The scope defined in the claims should all belong to the protection scope of the present invention.

Claims (8)

1. The slicing device for the biological medicine experiment comprises a base (100), wherein one end of the base (100) is fixedly connected with a slicer main body (110), one end of the slicer main body (110) is provided with a returning chuck (111), and the slicing device is characterized in that the top surface of the other end of the base (100) is provided with a recovery groove (120), the bottom surface of the recovery groove (120) is fixedly connected with a linear motor (130), the top surface of the moving end of the linear motor (130) is detachably and fixedly connected with a cutter mechanism (200), the cutter mechanism (200) comprises a chuck seat (210), the middle position of the top surface of the chuck seat (210) is fixedly connected with a second transmission module (220), one end of the slicer main body (110) is fixedly connected with a first transmission module (140), the first transmission module (140) enables the returning chuck (111) and the second transmission module (220) to be in transmission, both sides of the top surface of the chuck seat (210) are fixedly connected with side supporting frames (240), one end of each side supporting frame (240) is fixedly connected with a third transmission module (230), the top end of each transmission module (230) is connected with a transmission wheel (260), the bottom ends of the two side supporting frames (240) are fixedly connected with a fixing plate (250), and a fixing plate (250) is arranged between the bottom end of each other, and a fixing plate (250) is arranged near to be close to a fixing plate (250), and two side positions of one side wall of each side support frame (240) are fixedly connected with limit components (280).

2. The slicing device for the biomedical experiment as claimed in claim 1, wherein the first transmission module (140) comprises two single-groove pulleys (141), the two single-groove pulleys (141) are respectively located below and above the retraction chuck (111), the single-groove pulley (141) is rotatably connected with the slicer body (110), a belt (142) is in transmission connection between the two single-groove pulleys (141), a collar (143) is fixedly connected to an inner wall of one side of the belt (142), the collar (143) is slidably connected with the arm of the retraction chuck (111), and a rib (144) is fixedly connected to a side wall of the lower one of the single-groove pulleys (141).

3. The slicing device for the biomedical experiment as claimed in claim 2, wherein the second transmission module (220) comprises an end plate (225), the bottom end of the end plate (225) is fixedly connected with the top surface of the clamping seat (210), a sleeve (221) is rotatably sleeved on the inner side wall of the end plate (225), the sleeve (221) is slidably inserted into the edge rod (144), a double-groove belt pulley (224) is rotatably connected between the top surfaces of the clamping seat (210), a second bevel gear (223) is fixedly connected to the top surface of the double-groove belt pulley (224), a first bevel gear (222) is fixedly sleeved on one end of the sleeve (221), and the first bevel gear (222) and the second bevel gear (223) are meshed with each other.

4. The slicing apparatus for the biomedical experiment as claimed in claim 3, wherein the transmission module III (230) comprises a first pulley (232) and a round rod (233), one end of the round rod (233) is rotatably connected with a middle position of a side wall of the side support frame (240) at a position close to the middle position, the first pulley (232) is fixedly sleeved with the round rod (233), two sides of the top surface of the clamping seat (210) corresponding to the position below the first pulley (232) are respectively provided with a second pulley (234), a transmission belt (231) is in transmission connection between the first pulley (232), the two pulleys (234) and the double-groove belt pulley (224), and the rubbing wheel (260) is fixedly sleeved with the other end of the round rod (233) at a position close to the middle position.

5. The slicing device for the biomedical experiment as claimed in claim 4, wherein the moving module (270) comprises a second fixing member (272), the second fixing member (272) is fixedly connected with one side wall of the side support frame (240) adjacent to the second fixing member (272), the top surface of the second fixing member (272) is provided with a sliding groove, the inner wall of the sliding groove of the second fixing member (272) is slidably connected with a sliding plate (273), one side wall of the sliding plate (273) close to the rubbing wheel (260) is in extrusion contact with the rubbing wheel (260), two ends of the other side wall of the sliding plate (273) are fixedly connected with sliding rods (274), the outer side of the second fixing member (272) is provided with a first fixing member (271), the first fixing member (271) is slidably connected with one side wall of the side support frame (240), the first fixing member (271) is slidably connected with the fixing plate (250) adjacent to the position, one end of the sliding rod (274) extends outwards and penetrates through the adjacent fixing plate (250), and the sliding rod (274) is slidably connected with the corresponding fixing plate (250).

6. The slicing apparatus for biomedical experiments according to claim 1, wherein the limiting component (280) comprises a limiting rod (281), two ends of an annular outer side wall of the limiting rod (281) are rotatably sleeved with outer limiting sleeves (282), two ends of an outer side wall of the limiting rod (281) are movably sleeved with moving sleeves (284) at one side positions of the outer limiting sleeves (282), two ends of an outer side wall of the limiting rod (281) are rotatably sleeved with inner limiting sleeves (283) at one side positions of the moving sleeves (284), one ends of the inner limiting sleeves (283) and the outer limiting sleeves (282) are fixedly connected with one side wall of a side support frame (240) at a position close to the position, the moving sleeves (284) are fixedly connected with fixing pieces (271) at a position close to the position, the limiting rod (281) in one of the four limiting components (280) is a bidirectional screw (2811) and is threaded with inner walls of two moving sleeves (284) on the bidirectional screw (2811), and the bidirectional screw (2811) is rotatably connected with the corresponding two moving sleeves (284).

7. The slicing device for the biomedical experiment as claimed in claim 1, wherein a clamp is fixedly connected to a top surface of the moving end of the linear motor (130), and a bottom end of the clamping seat (210) is detachably, fixedly and clamped with the moving end of the linear motor (130) through the clamp.

8. The slicing apparatus for biomedical experiments according to claim 1, wherein a distance from a top position of the two tool holders (251) to a side of the corresponding fixing plate (250) is smaller than a distance from a bottom position of the two tool holders (251) to a side of the corresponding fixing plate (250).

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