Blow evaporator aluminum plate stretching and cold drawing continuous production device

Abstract

The application provides a continuous production device for drawing, cold-drawing and annealing of an inflation evaporator aluminum plate, and relates to the field of production of inflation evaporator aluminum plates. The continuous production device for drawing, cold-drawing and annealing in the production process of the inflation evaporator aluminum plate comprises a device base, the top of the device base is fixedly connected with an operation table, the outer wall of the operation table is fixedly connected with a second receiving plate, and the outer wall of the operation table is provided with a height adjusting mechanism. The thickness of the aluminum block after drawing can be adjusted according to the needs in the process of drawing and cold-drawing of the aluminum block after the height adjusting mechanism is adjusted, the processing range of the device is improved, aluminum plates with different thicknesses can be processed, the aluminum block can be clamped by the clamping mechanism, the aluminum block is prevented from sliding between the operation table and the drawing shaft without being drawn before processing, manual pushing of the aluminum block is avoided, and the safety and the convenience of operation of the device are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of blow evaporator aluminum plate production, in particular to a blow evaporator aluminum plate drawing and cold annealing continuous production device. BACKGROUND

[0002] The blow evaporator is made of aluminum sheet and copper-aluminum pipe, and aluminum has better heat conductivity, better refrigeration, corrosion resistance and higher safety. The blow evaporator has high refrigeration efficiency, and aluminum forms an aluminum oxide film in the air to protect the inside of the aluminum from further oxidation, so aluminum has strong oxidation resistance and higher safety.

[0003] When the applicant applied for the present application, it was found through a search that a "drawing device of extruder" was disclosed in a Chinese patent with the application number "CN212021420U". The lifting device is slidably arranged on the gantry, and the lifting device lifts the drawing roller up and down. The utility model has the effects of enabling the drawing roller to be disassembled and replaced mechanically, and improving the efficiency of disassembly and replacement of the drawing roller. However, the device has a mechanism for holding the extruded object, which may cause the extruded object to slide outside the drawing roller during the extrusion process without being extruded, and the object needs to be transferred to the next processing position after the drawing is completed, which reduces the processing efficiency. Therefore, according to the application of the applicant, a device for clamping and fixing the extruded object is invented, and the drawing and cold annealing are integrated to realize continuous production, solving the problems of the extruded object sliding outside the drawing roller without being extruded and the object needing to be transferred and processed after drawing, which reduces the processing efficiency. SUMMARY

[0004] (I) Technical problem to be solved

[0005] In view of the deficiencies of the prior art, the present application provides a blow evaporator aluminum plate drawing and cold annealing continuous production device, which solves the problems of the extruded object sliding outside the drawing roller without being extruded and the object needing to be transferred and processed after drawing, which reduces the processing efficiency.

[0006] (II) Technical scheme

[0007] In order to achieve the above object, the present application is realized by the following technical scheme: the inflation type evaporator aluminum plate stretch pressing cold-drawing continuous production device, including device base, the top of the device base is fixedly connected with the operation table, the outer wall of the operation table is fixedly connected with the second bearing plate, the outer wall of the operation table is provided with height adjusting mechanism, the top of the operation table is provided with stretch pressing mechanism, the top of the operation table is provided with clamping mechanism, the top of the device base is fixedly connected with the conveying belt, the front of the conveying belt is fixedly connected with the first bearing plate, the top of the first bearing plate is fixedly connected with the third motor, the top of the device base is fixedly connected with the hydraulic rod, the top of the hydraulic rod is fixedly connected with the second support plate, the top of the second support plate is fixedly connected with the fourth motor, the back surface output end of the fourth motor is fixedly connected with the third gear, the outer wall of the third gear is engaged with the fourth gear, the back surface of the fourth gear is fixedly connected with the first feeding shaft, the back surface of the third gear is fixedly connected with the second feeding shaft, the top of the device base is fixedly connected with the cold-drawing furnace, one side of the conveying belt close to the cold-drawing furnace is fixedly connected with the guide plate. The height adjusting mechanism can adjust the thickness of the aluminum block after stretch pressing according to the needs, improve the processing range of the device, and process aluminum plates with different thicknesses. The clamping mechanism can clamp the aluminum block to prevent it from sliding between the operation table and the stretch pressing shaft during processing. This avoids manual pushing of the aluminum block and increases the safety and convenience of the device. The fixed shell, rotating rod and flip cover can trim the aluminum plate during conveying after it is stretch pressed into an aluminum plate, remove the defective parts, and not affect the transmission of the aluminum plate, increase the processing quality of the aluminum plate, and the guide plate cooperates with the first feeding shaft and the second feeding shaft to send the removed defective parts into the cold-drawing furnace, realize continuous production, improve the processing efficiency of the device, and reduce the consumption of labor.

[0008] Preferably, the outer wall of the conveying belt is fixedly connected with a fixed shell, the inner wall of the fixed shell is rotatably connected with a rotating rod, and the outer wall of the fixed shell is rotatably connected with a flip cover. Opening the flip cover can segmentally fix the stretch pressed aluminum plate, and then the best can be selected and the inferior can be removed, improving the quality of aluminum plate processing, and removing the inferior part still does not affect the overall continuous production, does not reduce the processing efficiency of the device, and other optimization processing of the stretch pressed aluminum plate on the conveying belt can be carried out, increasing the upper limit of the processing quality of the device.

[0009] Preferably, the height adjusting mechanism comprises a sliding shell, a first motor, a first gear, a second gear, a sliding rail, a sliding block, a straight rack, a stable rack, the sliding shell is slidingly connected to the outer wall of the operating table, the second receiving plate is slidingly connected to the inner wall of the sliding shell, the first motor is fixedly connected to the top of the second receiving plate, the first gear is fixedly connected to the output end of the first motor close to the operating table, the outer wall of the first gear is engaged with the stable rack, and the stable rack is fixedly connected to the inner wall of the sliding shell. The shape of the stable rack makes the sliding shell more stable during lifting, and when the sliding shell is controlled to be lowered to the lowest position, the extension shaft is attached to the operating table, so that the thickness of the aluminum plate can be thinner, and the lower limit of the thickness adjustment of the aluminum plate is increased.

[0010] Preferably, the second gear is engaged with the outer wall of the first gear, the second gear is rotatably connected to the outer wall of the operating table, the straight rack is engaged with the outer wall of the second gear, the sliding block is fixedly connected to one side of the straight rack away from the operating table, the straight rack is fixedly connected to the inner wall of the sliding shell, the sliding block is slidingly connected to the inner wall of the sliding rail, the bottom of the sliding rail is fixedly connected to the inner wall of the device base, and the sliding rail is slidingly connected to the inner wall of the sliding shell. The sliding rail increases the stability of the sliding shell during lifting, and the straight rack makes the sliding shell more stable at both ends during lifting. The stability of the device is increased.

[0011] Preferably, the extension mechanism comprises a mechanism shell, a second motor, an extension shaft, and a first support plate, the mechanism shell is fixedly connected to the top of the sliding shell, and the second motor is fixedly connected to the sliding shell. The mechanism shell plays a protective role, avoiding the aluminum block from being contaminated by external substances during extension, and improving the processing quality.

[0012] Preferably, the extension shaft is fixedly connected to the output end of the second motor close to the operating table, the first support plate is fixedly connected to the top of the sliding shell, and the number of extension shafts is two. Two extension shafts cooperate with the operating table to extend the aluminum block, improve the quality of wide extension, and thus increase the processing effect of the device.

[0013] Preferably, the clamping mechanism comprises a bidirectional threaded rod, a threaded sleeve, a poking rod, an observation hole, a clamping plate, an extension rod, the bidirectional threaded rod is fixedly connected to the inner wall of the mechanism shell, and the threaded sleeve is threadedly connected to the outer wall of the bidirectional threaded rod. The threaded sleeve can limit the position of the clamping plate, so that the clamping plate does not move in position when clamping the aluminum block, thereby improving the clamping effect, and the bidirectional threaded rod is provided with a scale, so that the width of the aluminum block can be measured and the position can be determined by the fixed-width first motor when clamping, so that the width of the aluminum block after being drawn and pressed and the position can be determined, so that the device is more controllable, and the subsequent transmission of the aluminum plate is not easy due to the position or width of the aluminum block, ensuring the stable continuous production of the device.

[0014] Preferably, the number of threaded sleeves is eight, the poking rod is fixedly connected to the outer wall of the threaded sleeve, the number of poking rods is multiple, and the observation hole is formed in the outer wall of the threaded sleeve. The two threaded sleeves on the left and right sides of the clamping plate make the position of the clamping plate more stable, thereby improving the clamping effect of the device, the poking rod makes the operator more convenient to rotate and adjust the threaded sleeve, increases the convenience of operation of the device, and the observation hole makes the operator more easily and accurately observe the scale, increases the rigor of the device.

[0015] Preferably, the clamping plate is slidably connected to the outer wall of the bidirectional threaded rod, the clamping plate is slidably connected to the top of the operation table, the extension rod is fixedly connected to the outer wall of the clamping plate, and the extension rod is fixedly connected to the inner wall of the mechanism shell. The extension rod enables the clamping plate to have a reset function, so that the operation is more convenient to add new aluminum blocks to be pressed, and the convenience of operation of the device is increased.

[0016] Working principle: start the first motor, drive the rotation of the first gear, and then drive the lifting of the stable rack, and at the same time drive the rotation of the second gear to make the straight rack and the stable rack lift synchronously, and then drive the stable lifting of the sliding shell, and the sliding block lifts along with the straight rack and slides in the sliding rail, and after reaching the appropriate position, the first motor is turned off, the aluminum block is placed on the operation table at the appropriate position, the positions of the four threaded sleeves close to the center of the two-way threaded rod are adjusted, and then the four threaded sleeves away from the center of the two-way threaded rod are rotated respectively to make the clamping plate clamp the aluminum block, and the clamping tightness should not be too large, the position is adjusted according to the displayed width, and the width of the aluminum block to be extended is adjusted, after the appropriate adjustment, the two second motors are started, and then the extension shaft is rotated to extend the aluminum block, and the extended aluminum block can enter the conveying belt, the corresponding flap is opened, the aluminum block enters the rotating rod in the fixed shell, and the flap is closed, the aluminum plate is clamped, and the aluminum plate at this time is screened, and the unqualified one can be modified or directly rejected, and other processing can also be carried out, when the conveying belt approaches the side of the cold annealing furnace, the flap is opened to make the aluminum plate pass through the guide plate, and before that, the hydraulic rod can be adjusted to make the aluminum plate pass through the first feeding shaft and the second feeding shaft, and then enter the cold annealing furnace for cold annealing, that is, the continuous production of the extension and cold annealing of the aluminum plate is completed.

[0017] (Three) beneficial effects

[0018] The application provides a blowing type evaporator aluminum plate extension and cold annealing continuous production device.

[0019] 1、The threaded sleeve can limit the position of the clamping plate, so that the clamping plate does not move during clamping the aluminum block, thereby improving the clamping effect, and the two-way threaded rod is provided with a scale, so that the width of the aluminum block can be measured and the position can be determined by the fixed width first motor during clamping, so that the width of the aluminum block after extension and the position can be determined, so that the device is more controllable, and the subsequent transmission of the aluminum plate is not easy due to the position or width of the aluminum block, and the stable continuous production of the device is ensured.

[0020] 2、The shape of the stable rack makes the sliding shell more stable during lifting, and when the sliding shell is controlled to the lowest position, the extension shaft is attached to the operation table, so that the thickness of the aluminum plate extended by the device can be thinner, the lower limit of the thickness adjustment of the aluminum plate is increased, and the adjustment relies on the first motor instead of human power, so that the strength consumption of the operator is reduced, and the accuracy of the extension thickness adjustment is improved.

[0021] 3、fixed shell, rotating rod, flip cover can make the aluminum block after being drawn into aluminum plate, trimming can be carried out in the process of conveying, and the defective part is removed, and the conveying of the aluminum plate is not affected, and the processing quality of the aluminum plate is increased.

[0022] 4、The material guide plate cooperates with the first feeding shaft and the second feeding shaft to send the part after removing the defective part into the cold annealing furnace, realizes continuous production, improves the processing efficiency of the device, and reduces the consumption of labor. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The figure is a perspective view of the drawn and cold-annealed continuous production device for the blown evaporator aluminum plate of the application;

[0024] Figure 2 The figure is a schematic view of the internal structure of the drawing mechanism of the drawn and cold-annealed continuous production device for the blown evaporator aluminum plate of the application;

[0025] Figure 3 The figure is a schematic view of the internal structure of the height adjusting mechanism of the drawn and cold-annealed continuous production device for the blown evaporator aluminum plate of the application; Figure 2

[0026] Figure 4 The figure is a schematic view of the internal structure of the height adjusting mechanism of the drawn and cold-annealed continuous production device for the blown evaporator aluminum plate of the application;

[0027] Figure 5 The figure is a schematic view of the internal structure of the height adjusting mechanism of the drawn and cold-annealed continuous production device for the blown evaporator aluminum plate of the application;

[0028] Figure 6 The figure is a schematic view of the internal structure of the height adjusting mechanism of the drawn and cold-annealed continuous production device for the blown evaporator aluminum plate of the application;

[0029] Wherein, 1, device base; 2, operation table; 3, height adjusting mechanism; 31, sliding shell; 32, first motor; 33, first gear; 34, second gear; 35, sliding rail; 36, sliding block; 37, straight rack; 38, stable rack; 4, drawing mechanism; 41, mechanism shell; 42, second motor; 43, drawing shaft; 44, first support plate; 5, conveying belt; 6, first receiving plate; 7, third motor; 8, clamping mechanism; 81, bidirectional threaded rod; 82, threaded sleeve; 83, toggle lever; 84, observation hole; 85, clamping plate; 86, telescopic rod; 9, hydraulic rod; 10, second support plate; 11, fourth motor; 12, third gear; 13, fourth gear; 14, first feeding shaft; 15, second feeding shaft; 16, cold annealing furnace; 17, fixed shell; 18, rotating rod; 19, flip cover; 20, second receiving plate; 21, material guide plate. DETAILED DESCRIPTION

[0030] ​The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1:

[0032] like Figures 1-5 As shown, this embodiment of the invention provides a continuous production apparatus for the cold annealing and rolling of aluminum plates using a blow-type evaporator. A fixed shell 17 is fixedly connected to the outer wall of the conveyor belt 5. A rotating rod 18 is rotatably connected to the inner wall of the fixed shell 17. A flip cover 19 is rotatably connected to the outer wall of the fixed shell 17. A clamping plate 85 is slidably connected to the outer wall of a bidirectional threaded rod 81 and to the top of the operating table 2. A telescopic rod 86 is fixedly connected to the outer wall of the clamping plate 85 and to the inner wall of the outer shell 41. The surface of the rotating rod 18 is smooth to prevent texture from forming on the surface of the aluminum plate during the fixing process.

[0033] The height adjustment mechanism 3 includes a sliding housing 31, a first motor 32, a first gear 33, a second gear 34, a sliding rail 35, a sliding block 36, a rack 37, and a stabilizing rack 38. The sliding housing 31 is slidably connected to the outer wall of the operating table 2, and the second receiving plate 20 is slidably connected to the inner wall of the sliding housing 31. The first motor 32 is fixedly connected to the top of the second receiving plate 20. The first gear 33 is fixedly connected to the output end of the first motor 32 near the operating table 2. The outer wall of the first gear 33 meshes with the stabilizing rack 38, which is fixedly connected to the inner wall of the sliding housing 31. There are eight threaded sleeves 82, and multiple actuating rods 83 are fixedly connected to the outer wall of the threaded sleeves 82. An observation hole 84 is opened on the outer wall of the threaded sleeves 82. Multiple crossbars are provided in the middle of the stabilizing rack 38 to increase the stability of the height adjustment mechanism.

[0034] The second gear 34 is engaged with the outer wall of the first gear 33, the second gear 34 is rotatably connected to the outer wall of the operating table 2, the straight rack 37 is engaged with the outer wall of the second gear 34, the sliding block 36 is fixedly connected to the side of the straight rack 37 away from the operating table 2, the straight rack 37 is fixedly connected to the inner wall of the sliding shell 31, the sliding block 36 is slidably connected to the inner wall of the sliding rail 35, the bottom of the sliding rail 35 is fixedly connected to the inner wall of the device base 1, the sliding rail 35 is slidably connected to the inner wall of the sliding shell 31, the clamping mechanism 8 comprises a two-way threaded rod 81, a threaded sleeve 82, a toggle lever 83, an observation hole 84, a clamping plate 85, and a telescopic rod 86. The two-way threaded rod 81 is fixedly connected to the inner wall of the mechanism shell 41, and the threaded sleeve 82 is threadedly connected to the outer wall of the two-way threaded rod 81. The hole of the toggle lever 83 is larger near the outer surface and smaller near the two-way threaded rod 81, which can enable the operator to better observe the scale and be more accurate.

[0035] The stretching mechanism 4 comprises a mechanism shell 41, a second motor 42, stretching shafts 43, and a first support plate 44. The mechanism shell 41 is fixedly connected to the top of the sliding shell 31, the second motor 42 is fixedly connected to the sliding shell 31, the stretching shafts 43 are fixedly connected to the output end of the second motor 42 on the side close to the operating table 2, and the first support plate 44 is fixedly connected to the top of the sliding shell 31. The number of stretching shafts 43 is two. The surface of the stretching shafts 43 is smooth, which avoids the surface of the stretched aluminum plate having a large number of textures and causes the quality of the subsequently processed products to decrease.

[0036] The device base 1 is fixedly connected with the operating table 2 on the top, the outer wall of the operating table 2 is fixedly connected with the second receiving plate 20, the outer wall of the operating table 2 is provided with the height adjusting mechanism 3, the top of the operating table 2 is provided with the stretching mechanism 4, the top of the operating table 2 is provided with the clamping mechanism 8, the top of the device base 1 is fixedly connected with the conveying belt 5, the front of the conveying belt 5 is fixedly connected with the first receiving plate 6, the top of the first receiving plate 6 is fixedly connected with the third motor 7, and the top of the device base 1 is fixedly connected with the hydraulic rod 9. The inside of the operating table 2 can be provided with a storage space, which makes it more convenient to repair and replace parts of the device.

[0037] The top of the hydraulic rod 9 is fixedly connected with the second support plate 10, the top of the second support plate 10 is fixedly connected with the fourth motor 11, the back output end of the fourth motor 11 is fixedly connected with the third gear 12, the outer wall of the third gear 12 is engaged with the fourth gear 13, the back of the fourth gear 13 is fixedly connected with the first feeding shaft 14, the back of the third gear 12 is fixedly connected with the second feeding shaft 15, the top of the device base 1 is fixedly connected with the cold reduction furnace 16, and the side of the conveying belt 5 close to the cold reduction furnace 16 is fixedly connected with the guide plate 21. The surface of the guide plate 21 can be provided with a roller, which can better convey the aluminum plate between the first feeding shaft 14 and the second feeding shaft 15.

[0038] Embodiment two:

[0039] With reference to Figure 6 The existing patent embodiment of an extruder stretching device includes a setting of a anti-falling block 10 which can prevent the upper stretching roller 3 from falling off the placing groove 2, and ensures the normal stretching of the stretching roller 3. The side of the anti-falling block 10 facing the stretching roller 3 and the two sides of the anti-falling block 10 facing the stretching roller 3 are both provided with arc-shaped grooves 9 which are adapted to the stretching roller 3. The arc-shaped grooves 9 make the stretching roller 3 rotate more smoothly on the isolation block 8.

[0040] Conclusion: In embodiment one, the clamping mechanism 8 can clamp the aluminum block, avoiding the aluminum block from sliding between the operation table 2 and the stretching shaft 43 without being stretched before processing, avoiding manual pushing of the aluminum block, and increasing the safety and convenience of the device. In embodiment two, the stretching roller 3, the placing groove 2, the arc-shaped groove 9, and the anti-falling block 10 solve the problem that the stretching roller of the stretching machine is easily damaged after long-term use, and the stretching quality is affected once the stretching roller is damaged, so the stretching roller needs to be replaced frequently. The existing stretching machine does not have equipment for replacing the stretching roller, and the replacement of the stretching roller needs to be done manually. Since the stretching roller is heavy, manual disassembly and assembly are time-consuming and labor-intensive. However, embodiment two only innovates the convenient replacement of the stretching part, and does not solve the problem that the to-be-stretched object slides between the stretching parts at the beginning, making it difficult to enter the stretching parts. If artificial assistance is relied on at the beginning, there is a safety hazard, making the operation more dangerous. Embodiment one is relatively safer, and optimizes the stretching and subsequent processing in advance.

[0041] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A continuous production device for inflation evaporator aluminum plate stretch-pressing and cold-reduction, comprising a device base (1), characterized in that: The top of the device base (1) is fixedly connected with an operating table (2), the outer wall of the operating table (2) is fixedly connected with a second receiving plate (20), the outer wall of the operating table (2) is provided with a height adjusting mechanism (3), the top of the operating table (2) is provided with a stretching mechanism (4), the top of the operating table (2) is provided with a clamping mechanism (8), the top of the device base (1) is fixedly connected with a conveyor belt (5), the front of the conveyor belt (5) is fixedly connected with a first receiving plate (6), the top of the first receiving plate (6) is fixedly connected with a third motor (7), the top of the device base (1) is fixedly connected with a hydraulic rod (9), the top of the hydraulic rod (9) is fixedly connected with a second supporting plate (10), the top of the second supporting plate (10) is fixedly connected with a fourth motor (11), the back output end of the fourth motor (11) is fixedly connected with a third gear (12), the outer wall of the third gear (12) is engaged with a fourth gear (13), the back of the fourth gear (13) is fixedly connected with a first feeding shaft (14), the back of the third gear (12) is fixedly connected with a second feeding shaft (15), the top of the device base (1) is fixedly connected with a cold reduction furnace (16), one side of the conveyor belt (5) close to the cold reduction furnace (16) is fixedly connected with a guide plate (21), the outer wall of the conveyor belt (5) is fixedly connected with a fixed shell (17), the inner wall of the fixed shell (17) is rotatably connected with a rotating rod (18), the outer wall of the fixed shell (17) is rotatably connected with a flip cover (19), the clamping mechanism (8) comprises a bidirectional threaded rod (81), a threaded sleeve (82), a poking rod (83), an observation hole (84), a clamping plate (85), an extension rod (86), the bidirectional threaded rod (81) is fixedly connected to the inner wall of the mechanism shell (41), the threaded sleeve (82) is threadedly connected to the outer wall of the bidirectional threaded rod (81), the number of the threaded sleeve (82) is eight, the poking rod (83) is fixedly connected to the outer wall of the threaded sleeve (82), the number of the poking rod (83) is multiple, the observation hole (84) is formed in the outer wall of the threaded sleeve (82), the clamping plate (85) is slidably connected to the outer wall of the bidirectional threaded rod (81), the clamping plate (85) is slidably connected to the top of the operating table (2), the extension rod (86) is fixedly connected to the outer wall of the clamping plate (85), and the extension rod (86) is fixedly connected to the inner wall of the mechanism shell (41).

2. The apparatus according to claim 1, wherein: The height adjusting mechanism (3) comprises a sliding shell (31), a first motor (32), a first gear (33), a second gear (34), a sliding rail (35), a sliding block (36), a straight rack (37) and a stable rack (38), the sliding shell (31) is slidably connected to the outer wall of the operating table (2), the second receiving plate (20) is slidably connected to the inner wall of the sliding shell (31), the first motor (32) is fixedly connected to the top of the second receiving plate (20), the first gear (33) is fixedly connected to the output end of the first motor (32) on the side close to the operating table (2), the outer wall of the first gear (33) is engaged with the stable rack (38), and the stable rack (38) is fixedly connected to the inner wall of the sliding shell (31).

3. The apparatus according to claim 2, wherein the apparatus is characterized by: The second gear (34) is engaged with the outer wall of the first gear (33), the second gear (34) is rotatably connected to the outer wall of the operating table (2), the straight rack (37) is engaged with the outer wall of the second gear (34), the sliding block (36) is fixedly connected to the side of the straight rack (37) away from the operating table (2), the straight rack (37) is fixedly connected to the inner wall of the sliding shell (31), the sliding block (36) is slidably connected to the inner wall of the sliding rail (35), the bottom of the sliding rail (35) is fixedly connected to the inner wall of the device base (1), and the sliding rail (35) is slidably connected to the inner wall of the sliding shell (31).

4. The apparatus according to claim 2, wherein: The stretching mechanism (4) comprises a mechanism shell (41), a second motor (42), a stretching shaft (43) and a first support plate (44), the mechanism shell (41) is fixedly connected to the top of the sliding shell (31), and the second motor (42) is fixedly connected to the sliding shell (31).

5. The apparatus according to claim 4, wherein the apparatus is characterized by: The stretching shaft (43) is fixedly connected to the output end of the second motor (42) on the side close to the operating table (2), the first support plate (44) is fixedly connected to the top of the sliding shell (31), and the number of the stretching shafts (43) is two.

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