Sample tube film sealing device

Abstract

The utility model relates to a sample tube film sealing device. The film sealing device for the sample tube comprises a supporting main body and a hot-pressing sealing mechanism, the hot-pressing sealing mechanism comprises a hot-pressing driving assembly arranged on the supporting main body, and an aluminum film supporting plate and heating assemblies which are connected to the hot-pressing driving assembly, the heating assemblies are arranged at the top of the aluminum film supporting plate at intervals in the height direction of the hot-pressing driving assembly, and a through hole for allowing a sample tube to penetrate through is formed in the aluminum film supporting plate in a penetrating manner; the projection of the heating assembly on the aluminum film supporting plate is at least partially located in the through hole, the aluminum film supporting plate is used for supporting an aluminum film and enabling the aluminum film to cover the through hole, and the hot-pressing driving assembly is used for driving the aluminum film supporting plate and the heating assembly to do lifting motion. Additional mechanisms are not needed, and the structural complexity of the sample tube sealing device is reduced; heat sealing of the aluminum film is achieved in situ on the hot-pressing sealing mechanism, the steps before sealing are reduced, the production efficiency is improved, and the situation that the sealing quality and consistency are affected due to displacement is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of laboratory automation systems, and in particular to a sample tube sealing device. Background Art

[0002] Sample tubes that store reagents or medicines will use aluminum film to seal the tube mouth of the sample tube to ensure the sealing of the sample tube. In the related art, the sample tube sealing device is provided with a translation mechanism, a heat sealing mechanism connected to the translation mechanism, and a heat sealing profiling mechanism. The aluminum film is cut by hot pressing through the heat sealing mechanism, and then the heat sealing profiling mechanism is moved to the cut aluminum film through the translation mechanism, and the aluminum film is hot pressed and sealed on the sample tube. However, this sample tube sealing device has the following problems: the addition of an additional translation mechanism increases the structural complexity of the sample tube sealing device; the heat sealing profiling mechanism needs to adjust its position through the translation mechanism to correspond to the aluminum film, which increases the steps before sealing, reduces production efficiency, and easily causes inaccurate position correspondence, affecting the sealing quality and consistency. Utility Model Content

[0003] Based on this, it is necessary to add an additional translation mechanism to increase the structural complexity of the sample tube sealing device; the heat-sealing profiling mechanism needs to adjust its position through the translation mechanism to correspond to the aluminum film, which increases the steps before sealing, reduces production efficiency, and easily causes inaccurate position correspondence and affects the sealing quality and consistency. A sample tube sealing device is provided.

[0004] A sample tube sealing device, comprising:

[0005] Support the main body;

[0006] The hot pressure sealing mechanism includes a hot pressure driving component arranged on the supporting body, and an aluminum film support plate and a heating component both connected to the hot pressure driving component. Along the height direction of the hot pressure driving component, the heating component is located above the aluminum film support plate, the aluminum film support plate is penetrated by a through hole for a sample tube to pass through, the projection of the heating component on the aluminum film support plate is at least partially located in the through hole, the aluminum film support plate is used to support the aluminum film and cover the through hole, and the hot pressure driving component is used to drive the aluminum film support plate and the heating component to perform lifting movements.

[0007] In one embodiment, the sample tube sealing device also includes a film cutting mechanism, which includes a film cutting drive component, a cutting component and a film cutting pressing component. The film cutting drive component is arranged on the supporting body, the cutting component is connected to the film cutting drive component, the film cutting pressing component is elastically connected to the top of the aluminum film support plate, the film cutting pressing component is located on the outside of the through hole, and the film cutting drive component is used to drive the cutting component to descend to abut against the film cutting pressing component.

[0008] In one of the embodiments, the film cutting and pressing assembly includes an aluminum film pressing block, an aluminum film pressing block guide column and a pressing block elastic member, the aluminum film pressing block is located on the top of the aluminum film supporting plate and on the outside of the through hole, the aluminum film pressing block is penetrated by a pressing block movable hole, one end of the aluminum film pressing block guide column is connected to the aluminum film supporting plate, and the other end is penetrated by the pressing block movable hole and is movably connected to the aluminum film pressing block, the bottom end of the pressing block elastic member along its own height direction is connected to the aluminum film supporting plate, and the top end thereof is connected to the aluminum film pressing block, and the cutting assembly is used to press down the aluminum film pressing block;

[0009] And / or, the cutting assembly includes a tool holder, a blade, a film cutting guide column and a film cutting elastic member, the tool holder is connected to the film cutting drive assembly, the blade is arranged on the tool holder and is located on the outside of the film cutting clamping assembly, the tool holder at least partially extends to the top of the film cutting clamping assembly and is penetrated by a film cutting movable hole, one end of the film cutting guide column is movably connected to the film cutting movable hole, and the other end is located at the top of the film cutting clamping assembly, and the film cutting elastic member is arranged between the tool holder and the film cutting guide column.

[0010] In one of the embodiments, a limiting piece is convexly provided on the aluminum film supporting plate, and the limiting piece is located on both sides of the through hole, and a connecting line between the limiting pieces intersects with a feeding direction of the aluminum film.

[0011] In one embodiment, the heating assembly includes a heating block, a heating rod and a heating block guide pin, the heating block is connected to the hot pressing drive assembly, the heating rod is arranged in the heating block, the heating block guide pin is protruded at the bottom end of the heating block, the heating block guide pin is located at the top of the aluminum film support plate, a hot pressing groove is provided on the side of the heating block guide pin facing the through hole, and the projection of the heating block guide pin on the aluminum film support plate is located in the through hole.

[0012] In one embodiment, the sample tube sealing device also includes an aluminum film feeding mechanism, which includes a feeding support frame, an aluminum film winding assembly, a first clamping assembly, a second clamping assembly and a feeding drive assembly, the supporting body is connected to the feeding support frame, the first clamping assembly and the feeding drive assembly are both connected to the feeding support frame, the second clamping assembly is movably connected to the feeding support frame, the first clamping assembly and the second clamping assembly are used to clamp or release the aluminum film fed out by the aluminum film winding assembly, the output shaft of the feeding drive assembly is connected to the second clamping assembly, and is used to drive the second clamping assembly to pull the aluminum film to move toward the aluminum film support plate or retract and reset.

[0013] In one embodiment, the first clamping assembly and the second clamping assembly both include a clamping driver, a first clamping plate, a second clamping plate and a clamping transmission member. The first clamping plate is provided with a hollow portion extending therethrough, and the hollow portion is used for the aluminum film to pass through. The clamping driver is connected to the feeding support frame. One end of the clamping transmission member is connected to the output shaft of the clamping driver, and the other end is connected to the first clamping plate. The second clamping plate is connected to the main body of the clamping driver and extends toward the direction of the first clamping plate to the hollow portion. The clamping driver is used to drive the first clamping plate to approach or move away from the second clamping plate to clamp or release the aluminum film in the hollow portion.

[0014] In one embodiment, the clamping driver is a clamping rotating motor, the first clamping plate is penetrated by a clamping guide rail perpendicular to the vertical direction, the clamping transmission member includes a clamping swing arm, a clamping eccentric shaft and a clamping bearing, the clamping swing arm includes a first end and a second end along its own length direction, the first end is connected to the output shaft of the clamping driver, the second end is connected to the clamping eccentric shaft, the clamping eccentric shaft is transmission-connected to the clamping guide rail through the clamping bearing, and the second end of the swing arm moves around the output shaft of the clamping driver to drive the first clamping plate to rise or fall through the clamping guide rail.

[0015] In one embodiment, the sample tube sealing device also includes a sample tube clamping mechanism, which includes a clamping support frame, a clamping rotating motor, a gear transmission assembly and a clamping arm, the clamping support frame is connected to the main body of the clamping rotating motor, the gear transmission assembly is movably connected to the clamping support frame, the output end of the clamping rotating motor is connected to the gear transmission assembly, the gear transmission assembly is transmission-connected to the clamping arm, and the clamping rotating motor is used to drive the gear transmission assembly to drive the clamping arm to retract or open so as to clamp or release the sample tube.

[0016] In one embodiment, the gear transmission assembly includes a first gear, a second gear, a first rotating shaft, a second rotating shaft, a third gear and a fourth gear, the clamping arm includes a first clamping arm and a second clamping arm, the clamping support is mounted on the top end of the clamping rotating motor, the output end of the clamping rotating motor is connected to the first gear, the bottom end of the first rotating shaft along its own height direction is connected to the second gear, and the first gear is meshingly connected to the second gear; the middle part of the first rotating shaft is rotatably connected to the clamping support, the top end of the first rotating shaft is connected to the first clamping arm, and the top end of the first rotating shaft is also sleeved with the third gear; the bottom end of the second rotating shaft along its own height direction is rotatably connected to the clamping support, the top end of the second rotating shaft is connected to the second clamping arm, and the top end of the second rotating shaft is also sleeved with the fourth gear, and the third gear is meshingly connected to the fourth gear.

[0017] The above-mentioned sample tube film sealing device is provided with a supporting body and a hot-pressing sealing mechanism. The aluminum film support plate on the hot-pressing sealing mechanism is used to support the aluminum film, and the aluminum film covers the through hole on the aluminum film support plate. The hot-pressing driving component drives the aluminum film support plate and the heating component to descend together until the sample tube passes through the through hole, and the sample tube lifts up the aluminum film on the aluminum film support plate from the through hole. As the aluminum film support plate and the heating component continue to descend, the tube mouth of the sample tube abuts the heating component, and the heating component heats and seals the aluminum film on the tube mouth of the sample tube. Therefore, the present application scheme arranges an aluminum film support plate on the hot-pressing sealing mechanism to carry the cut aluminum film, and opens a through hole on the aluminum film support plate, so that under the drive of the hot-pressing driving component, the hot-pressing sealing mechanism is directly descended to the aluminum film at the tube mouth of the hot-pressing sealing sample tube, so that the aluminum film sealing step is directly performed in the original position of the hot-pressing sealing mechanism, and there is no need to set a translation mechanism for alignment, and there is no additional alignment action step, so that the sealing process is faster and the production efficiency is higher. Furthermore, the heating assembly located above the aluminum film support plate can provide a more consistent heat-pressing effect, reduce the film sealing error caused by the alignment movement, and improve the film sealing quality. In addition, since the aluminum film is sealed in situ in the heat-pressing sealing mechanism, there is no need to set a translation mechanism, which simplifies the structure of the sample tube film sealing device and reduces its complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to better describe and illustrate the embodiments of the inventions disclosed herein, reference may be made to one or more drawings. The additional details or examples used to describe the drawings should not be considered to limit the scope of the disclosed inventions, the embodiments currently described, and any of the best modes of these inventions currently understood.

[0019] Figure 1 A side view of a sample tube sealing device provided in an embodiment of the present application.

[0020] Figure 2A three-dimensional diagram of the heat-pressing sealing mechanism and the film-cutting mechanism provided in an embodiment of the present application.

[0021] Figure 3 A three-dimensional diagram of the heat-pressing sealing mechanism provided in an embodiment of the present application.

[0022] Figure 4 A three-dimensional diagram of the film cutting mechanism provided in an embodiment of the present application.

[0023] Figure 5 A stereoscopic view of the film cutting and clamping assembly and the cutting assembly provided in an embodiment of the present application.

[0024] Figure 6 A three-dimensional diagram of the aluminum film feeding mechanism provided in an embodiment of the present application.

[0025] Figure 7 A stereoscopic view of a first clamping assembly provided in an embodiment of the present application.

[0026] Figure 8 A stereoscopic view of a second clamping assembly provided in an embodiment of the present application.

[0027] Fig. 9 A three-dimensional diagram of the sample tube clamping mechanism provided in an embodiment of the present application.

[0028] Description of reference numerals:

[0029] 10000, sample tube sealing device;

[0030] 1000, hot pressing sealing mechanism; 1010, hot pressing driving assembly; 1011, hot pressing rotating motor; 1012, hot pressing screw rod; 1013, hot pressing slide rail; 1014, hot pressing sliding seat; 1020, aluminum film support plate; 1021, through hole; 1022, limiter; 1030, heating assembly; 1031, heating block; 1032, heating rod; 1033, heating block guide column; 1034, hot pressing groove; 1040, voltage stabilizing assembly; 1041, voltage stabilizing mounting plate; 1042, voltage stabilizing guide rod; 1043, voltage stabilizing slider; 1044, voltage stabilizing elastic member;

[0031] 2000, film cutting mechanism; 2010, film cutting drive assembly; 2011, film cutting mounting plate; 2012, film cutting slide rail; 2013, film cutting rotating motor; 2014, film cutting swing arm; 2015, film cutting eccentric shaft; 2016, film cutting bearing; 2017, film cutting support block; 2018, film cutting guide rail; 2020, cutting assembly; 2021, knife holder; 2022, blade; 2023, film cutting guide column; 2024, film cutting elastic part; 2030, film cutting clamping assembly; 2031, aluminum film pressing block; 2032, aluminum film pressing block guide column; 2033, pressing block elastic part;

[0032] 3000, aluminum film feeding mechanism; 3010, feeding support frame; 3011, guide roller; 3012, first accommodating hole; 3013, second accommodating hole; 3020, aluminum film winding assembly; 3021, aluminum film reel; 3022, reel support frame; 3030, first clamping assembly; 3040, second clamping assembly; 3031, clamping driver; 3032, first clamping plate; 3043, second clamping assembly; 3044, second clamping assembly; 3045, second clamping assembly; 3046, second clamping assembly; 3047, second clamping assembly; 3048, second clamping assembly; 3049, second clamping assembly; 3050, second clamping assembly; 3051, clamping driver; 3052, first clamping plate; 3053, second clamping assembly; 3054, second clamping assembly; 3055, second clamping assembly; 3056, second clamping assembly; 3057, second clamping assembly; 3058, first clamping plate; 3059, second clamping assembly; 3060, second clamping assembly; 3061, second clamping assembly; 3062, second clamping assembly; 3063, first clamping plate; 3064, second clamping assembly; 3065, first clamping plate; 3066, first clamping plate; 3067, first clamping plate; 3068, first clamping plate; 3069, first clamping plate; 3070, first clamping plate; 3071, first clamping plate; 3072, second clamping plate 033, second clamping plate; 3034, clamping guide rail; 3035, hollow part; 3036, clamping swing arm; 3037, clamping eccentric shaft; 3038, clamping bearing; 3039, clamping mounting plate; 3041, clamping slide rail; 3050, feeding drive assembly; 3051, feeding rotating motor; 3052, feeding screw rod; 3053, feeding sliding seat; 3054, feeding slide rail;

[0033] 4000, sample tube clamping mechanism; 4010, clamping support frame; 4020, clamping rotation motor; 4030, gear transmission assembly; 4031, first gear; 4032, second gear; 4033, first rotating shaft; 4034, second rotating shaft; 4035, third gear; 4036, fourth gear; 4040, clamping arm; 4041, first clamping arm; 4042, second clamping arm;

[0034] 5000, supporting body. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] The embodiment of the present application provides a sample tube film sealing device 10000, comprising a supporting body 5000, a heat pressing and sealing mechanism 1000, a film cutting mechanism 2000, an aluminum film feeding mechanism 3000, and a sample tube clamping mechanism 4000. The supporting body 5000 is used to fix the heat pressing and sealing mechanism 1000 and the film cutting mechanism 2000, the aluminum film feeding mechanism 3000 is used to feed the aluminum film to the heat pressing and sealing mechanism 1000, the film cutting mechanism 2000 is used to cut off the aluminum film on the heat pressing and sealing mechanism 1000, and the sample tube clamping mechanism 4000 is used to clamp the sample tube at the bottom end of the heat pressing and sealing mechanism 1000.

[0037] First, the heat press sealing mechanism 1000 is introduced: please refer to Figure 3In some embodiments, the hot press sealing mechanism 1000 includes a hot press driving assembly 1010 disposed on the supporting body 5000, and an aluminum film support plate 1020 and a heating assembly 1030 both connected to the hot press driving assembly 1010. Along the height direction of the hot press driving assembly 1010, the heating assembly 1030 is spaced apart at the top of the aluminum film support plate 1020, the aluminum film support plate 1020 is penetrated with a through hole 1021 for the sample tube to pass through, the projection of the heating assembly 1030 on the aluminum film support plate 1020 is at least partially located in the through hole 1021, the aluminum film support plate 1020 is used to support the aluminum film and cover the through hole 1021, and the hot press driving assembly 1010 is used to drive the aluminum film support plate 1020 and the heating assembly 1030 to perform lifting and lowering movements. The aluminum film support plate 1020 on the hot press sealing mechanism 1000 is used to support the aluminum film, and the aluminum film covers the through hole 1021 on the aluminum film support plate 1020. The hot pressure driving component 1010 drives the aluminum film support plate 1020 and the heating component 1030 to descend together until the sample tube passes through the through hole 1021. The sample tube lifts up the aluminum film on the aluminum film support plate 1020 from the through hole 1021. As the aluminum film support plate 1020 and the heating component 1030 continue to descend, the mouth of the sample tube abuts against the heating component 1030, and the heating component 1030 heats and seals the aluminum film on the mouth of the sample tube. Therefore, the present application scheme arranges an aluminum film support plate 1020 on the hot-pressing sealing mechanism 1000 to carry the cut aluminum film, and opens a through hole 1021 on the aluminum film support plate 1020, so that under the drive of the hot-pressing driving component 1010, the hot-pressing sealing mechanism 1000 directly descends to the aluminum film at the tube mouth of the hot-pressing sealing sample tube, so that the step of sealing the aluminum film is directly performed in the original position of the hot-pressing sealing mechanism 1000, and there is no need to set a translation mechanism for alignment, and there is no additional alignment action step, so that the sealing process is faster and the production efficiency is higher. Furthermore, the heating component 1030 located above the aluminum film support plate 1020 can provide a more consistent hot-pressing effect, reduce the sealing error caused by alignment movement, and improve the sealing quality. In addition, since the sealing of the aluminum film is achieved in the original position of the hot-pressing sealing mechanism 1000, there is no need to set a translation mechanism, which simplifies the structure of the sample tube sealing device 10000 and reduces the complexity.

[0038] For some examples, see Figure 3, a stopper 1022 is convexly provided on the aluminum film support plate 1020, and the stopper 1022 is located on both sides of the through hole 1021, and the connecting line between the stoppers 1022 intersects with the feeding direction of the aluminum film. By setting the stopper 1022 as the aluminum film conveying positioning point, the aluminum film is always in the correct feeding position during the process of being conveyed to the aluminum film support plate 1020, ensuring that the position of the aluminum film conveyed each time is consistent, which is conducive to the accuracy of cutting and sealing and improves the quality of sealing. In addition, the aluminum film can be stabilized to prevent the movement caused by vibration or mechanism action during the conveying process from affecting the transmission of the aluminum film. Optionally, the stopper 1022 is a threaded pin, a guide groove, a card slot or a column, etc.

[0039] For some examples, see Figure 3 The hot pressing driving assembly 1010 includes a hot pressing rotating motor 1011, a hot pressing screw rod 1012, a hot pressing slide rail 1013 and a hot pressing sliding seat 1014. The hot pressing slide rail 1013 and the hot pressing rotating motor 1011 are arranged on the supporting body 5000, one end of the hot pressing screw rod 1012 is connected to the output end of the hot pressing rotating motor 1011, and the other end is rotatably connected to the supporting body 5000. The hot pressing sliding seat 1014 is transmission-connected to the hot pressing screw rod 1012 and slidingly connected to the hot pressing slide rail 1013. The heating assembly 1030 and the aluminum film support plate 1020 are both arranged on the hot pressing sliding seat 1014. The hot pressing rotating motor 1011 drives the hot pressing screw rod 1012 to rotate, and then the hot pressing screw rod 1012 drives the hot pressing sliding seat 1014 to perform lifting and lowering movements. The hot pressing drive assembly 1010 may also be other types of lifting assemblies, which are not specifically limited in the embodiments of the present application. For example, it may be a gear rack lifting assembly or a synchronous belt and synchronous pulley lifting assembly.

[0040] For some examples, see Figure 3 , the heating assembly 1030 includes a heating block 1031, a heating rod 1032 and a heating block guide post 1033. The heating block 1031 is connected to the hot pressing driving assembly 1010, the heating rod 1032 is arranged in the heating block 1031, the heating block guide post 1033 is convexly arranged at the bottom end of the heating block 1031, the heating block guide post 1033 is located at the top of the aluminum film support plate 1020, and a hot pressing groove 1034 is arranged on the side of the heating block guide post 1033 facing the through hole 1021, and the projection of the heating block guide post 1033 on the aluminum film support plate 1020 is located in the through hole 1021. The provision of the heating block guide post 1033 is conducive to concentrating the heat in the through hole 1021 area, and the aluminum film on the tube mouth of the sample tube at the through hole 1021 can be more accurately heated to reduce heat loss. In some embodiments, the heating block 1031 is arranged on the hot pressing sliding seat 1014. In some embodiments, the groove size of the hot pressing groove 1034 matches the tube opening size of the sample tube so as to heat-press and seal the aluminum film on the sample tube.

[0041] For some examples, see Figure 2 and Figure 3 , the hot pressing sealing mechanism 1000 also includes a pressure stabilizing assembly 1040. The pressure stabilizing assembly 1040 includes a pressure stabilizing mounting plate 1041, a pressure stabilizing guide rod 1042, a pressure stabilizing slider 1043 and a pressure stabilizing elastic member 1044. The pressure stabilizing mounting plate 1041 is connected to the supporting body 5000, the pressure stabilizing guide rod 1042 is connected to the pressure stabilizing mounting plate 1041 along the top of its own height direction, and its bottom end is slidably connected to the pressure stabilizing slider 1043, and the pressure stabilizing slider 1043 is fixedly connected to the hot pressing sliding seat 1014. The pressure stabilizing elastic member 1044 is vertically connected between the pressure stabilizing mounting plate 1041 and the pressure stabilizing slider 1043. When the hot pressing sliding seat 1014 descends, the pressure stabilizing slider 1043 is driven to descend relative to the pressure stabilizing mounting plate 1041 along the pressure stabilizing guide rod 1042, and the pressure stabilizing elastic member 1044 is stretched under the pulling of the pressure stabilizing slider 1043. When the hot pressing sliding seat 1014 descends to make the heating block guide column 1033 hot press and seal the aluminum film on the sample tube, the tensile force on the pressure stabilizing elastic member 1044 is the sealing pressure on the sample tube. The pressure stabilizing component 1040 can provide a certain buffering effect to reduce the impact damage to the sample tube during the hot pressing process.

[0042] Exemplarily, the pressure-stabilizing elastic member 1044 may be a spring, a torsion spring, or a spring sheet, etc.

[0043] For some examples, see Figure 3 The pressure stabilizing slider 1043 is connected to the heating block 1031, so that the pressure stabilizing assembly 1040 is arranged close to the heating assembly 1030. The structure of the hot pressing sealing mechanism 1000 can be made more compact, the synchronization of the pressure stabilizing assembly 1040 and the heating assembly 1030 can be better, the accuracy of pressure control can be improved, and the pressure change during the hot pressing process is more coherent, which is conducive to improving the sealing quality.

[0044] Next, we will introduce the film cutting mechanism 2000: please refer to Figure 4 In some embodiments, the film cutting mechanism 2000 includes a film cutting driving component 2010, a cutting component 2020, and a film cutting pressing component 2030. Figure 2 The film cutting drive assembly 2010 is disposed on the supporting body 5000, please refer to Figure 4The cutting assembly 2020 is connected to the film cutting driving assembly 2010, and the film cutting pressing assembly 2030 is elastically connected to the top of the aluminum film supporting plate 1020. The film cutting pressing assembly 2030 is located on the outside of the through hole 1021. The film cutting driving assembly 2010 is used to drive the cutting assembly 2020 to descend to abut against the film cutting pressing assembly 2030, and make the film cutting pressing assembly 2030 press the aluminum film located on the through hole 1021, and at the same time, the cutting assembly 2020 descends to cut the aluminum film. Therefore, through the cooperation between the cutting assembly 2020 and the film cutting pressing assembly 2030, the aluminum film on the aluminum film supporting plate 1020 can be pressed and cut at the same time, which can prevent the aluminum film from sliding and shifting during cutting, improve the cutting accuracy, ensure the accurate cutting position, and at the same time ensure that the aluminum film is flat, avoiding poor sealing caused by uneven aluminum film. In addition, the cutting assembly 2020 triggers the film cutting and pressing assembly 2030 to press the aluminum film, which can achieve automatic pressing, ensure the synchronization of cutting and pressing, and further improve the consistency of film cutting. The film cutting and pressing assembly 2030 is arranged on the aluminum film support plate 1020 so that the process of pressing the aluminum film occurs on the hot pressing and sealing mechanism 1000, rather than outside the hot pressing and sealing mechanism 1000, which can simplify the structure of the sample tube film sealing device and reduce external components.

[0045] For some examples, see Figure 4 and Figure 5 The film cutting and pressing assembly 2030 includes an aluminum film pressing block 2031, an aluminum film pressing block guide column 2032 and a pressing block elastic member 2033. Figure 5 The aluminum film pressing block 2031 is located at the top of the aluminum film supporting plate 1020 and outside the through hole 1021. The aluminum film pressing block 2031 is penetrated with a pressing block movable hole. The aluminum film pressing block guide column 2032 is connected to the aluminum film supporting plate 1020 at its bottom end along its height direction, and its top is penetrated with a pressing block movable hole and is movably connected to the aluminum film pressing block 2031. The pressing block elastic member 2033 is connected to the aluminum film supporting plate 1020 at its bottom end along its height direction, and its top is connected to the aluminum film pressing block 2031. Please refer to Figure 4 , the film cutting guide column 2023 of the cutting assembly 2020 is used to press down the aluminum film pressing block 2031. Please refer to 5, under the pressure of the film cutting guide column 2023, the aluminum film pressing block 2031 slides downward along the aluminum film pressing block guide column 2032, the pressing block elastic member 2033 is compressed, and the aluminum film pressing block 2031 slides to press the aluminum film on the aluminum film supporting plate 1020. By setting the pressing block elastic member 2033, the automatic reset of the aluminum film pressing block 2031 can be achieved, and the pressing effect of aluminum films of different thicknesses can be improved.

[0046] Exemplarily, the pressing block elastic member 2033 may be a spring, a torsion spring, or a spring sheet, etc.

[0047] For some examples, see Figure 4The cutting assembly 2020 includes a knife holder 2021, a blade 2022, a film cutting guide column 2023 and a film cutting elastic member 2024. The knife holder 2021 is connected to the film cutting drive assembly 2010, the blade 2022 is arranged on the knife holder 2021 and is located outside the film cutting clamping assembly 2030, the knife holder 2021 at least partially extends to the top of the film cutting clamping assembly 2030 and is penetrated by a film cutting movable hole, the top end of the film cutting guide column 2023 along its own height direction is movably connected to the film cutting movable hole, and its bottom end is located at the top of the film cutting clamping assembly 2030, and the film cutting elastic member 2024 is arranged between the knife holder 2021 and the film cutting guide column 2023. The film cutting driving assembly 2010 drives the knife holder 2021 to descend, and the film cutting guide column 2023 abuts against the film cutting pressing assembly 2030. The knife holder 2021 slides along the film cutting guide column 2023 and compresses the film cutting elastic member 2024. The film cutting guide column 2023 further presses down the film cutting pressing assembly 2030, so that the film cutting pressing assembly 2030 presses the aluminum film. By setting the film cutting guide column 2023 and the film cutting elastic member 2024, it is possible to achieve precise control of the pressurization position and cutting position of the film cutting pressing assembly 2030, provide stable support and guidance, on the one hand, ensure accurate cutting of the blade 2022, and on the other hand, ensure accurate pressurization of the knife holder 2021.

[0048] For some examples, see Figure 5 The top of the film cutting guide pillar 2023 along its height direction is movably connected with the film cutting movable hole on the knife holder 2021, and the bottom of the film cutting guide pillar 2023 is located on the top of the aluminum film pressing block 2031 in the film cutting pressing assembly 2030. The film cutting driving assembly 2010 drives the knife holder 2021 to descend, and the film cutting guide pillar 2023 abuts against the aluminum film pressing block 2031, so that the aluminum film pressing block 2031 presses the aluminum film.

[0049] Exemplarily, the film cutting elastic member 2024 may be a spring, a torsion spring, or a spring sheet, etc.

[0050] For some examples, see Figure 4 The film cutting drive assembly 2010 includes a film cutting mounting plate 2011, a film cutting slide rail 2012, a film cutting rotating motor 2013, a film cutting swing arm 2014, a film cutting eccentric shaft 2015, a film cutting bearing 2016 and a film cutting support block 2017. Please refer to Figure 2 The main body of the film cutting rotating motor 2013 is connected to the supporting body 5000. Figure 4The film cutting mounting plate 2011 is connected to the main body of the film cutting rotating motor 2013, the film cutting slide rail 2012 is arranged on the film cutting mounting plate 2011, the film cutting support block 2017 is slidably connected to the film cutting slide rail 2012, and the film cutting support block 2017 is connected to the knife holder 2021. One end of the film cutting swing arm 2014 along its length direction is connected to the output shaft of the film cutting rotating motor 2013, and the other end is connected to the film cutting bearing 2016 through the film cutting eccentric shaft 2015. The film cutting swing arm 2014 performs a circular motion with its output shaft as the center under the drive of the film cutting rotating motor 2013. The film cutting support block 2017 is provided with a film cutting guide rail 2018 perpendicular to the height direction, and the film cutting bearing 2016 is slidably connected to the film cutting guide rail 2018. The film cutting rotating motor 2013 drives the film cutting swing arm 2014 to drive the film cutting eccentric shaft 2015 to make circular motion, and drives the film cutting bearing 2016 to slide along the film cutting guide rail 2018, thereby driving the film cutting support block 2017 to rise or fall relative to the film cutting slide rail 2012, thereby causing the tool holder 2021 to rise or fall.

[0051] Next, we will introduce the aluminum film feeding mechanism 3000: please refer to Figure 6 The aluminum film feeding mechanism 3000 includes a feeding support frame 3010, an aluminum film winding assembly 3020, a first clamping assembly 3030, a second clamping assembly 3040 and a feeding driving assembly 3050. Figure 1 , the support body 5000 is connected to the feeding support frame 3010. Figure 6 The first clamping assembly 3030 and the feeding drive assembly 3050 are both connected to the feeding support frame 3010, and the second clamping assembly 3040 is movably connected to the feeding support frame 3010. The first clamping assembly 3030 and the second clamping assembly 3040 are used to clamp or release the aluminum film fed out by the aluminum film winding assembly 3020. The output shaft of the feeding drive assembly 3050 is connected to the second clamping assembly 3040 and is used to drive the second clamping assembly 3040 to pull the aluminum film to move toward the aluminum film support plate 1020 or retract and reset. During the feeding process, the aluminum film is pulled out from the aluminum film winding assembly 3020, and the aluminum film is passed through the first clamping assembly 3030 and the second clamping assembly 3040 in sequence. After the second clamping assembly 3040 clamps the aluminum film, the feeding drive assembly 3050 drives the second clamping assembly 3040 to move toward the side of the aluminum film support plate 1020, and the aluminum film is transported to the aluminum film support plate 1020. After the film cutting structure cuts off the aluminum film on the aluminum film support plate 1020, the second clamping assembly 3040 releases the remaining aluminum film on the feeding support frame 3010, and the first clamping assembly 3030 clamps the remaining aluminum film. The aluminum film feeding drive assembly 3050 drives the second clamping assembly 3040 to retreat and reset, waiting for the next feeding. Since the first clamping assembly 3030 clamps the remaining aluminum film when the second clamping assembly 3040 retreats, the remaining aluminum film can be prevented from being moved or deformed by the second clamping assembly 3040.

[0052] For some examples, see Figure 6 The aluminum film winding assembly 3020 includes an aluminum film reel 3021 and a reel support frame 3022. The aluminum film reel 3021 is disposed on the reel support frame 3022, and the aluminum film reel 3021 includes a reel and a reel, the reel is rotatably connected to the reel, the reel winds multiple layers of aluminum film, and the reel is provided with a feeding opening, and the aluminum film is fed out through the feeding opening.

[0053] For some examples, see Figure 7 and Figure 8 , Figure 7 is a three-dimensional diagram of the first clamping assembly 3030, Figure 8 30 is a perspective view of the second clamping assembly 3040. The first clamping assembly 3030 and the second clamping assembly 3040 both include a clamping driver 3031, a first clamping plate 3032, a second clamping plate 3033 and a clamping transmission member. The first clamping plate 3032 is provided with a hollow portion 3035, and the hollow portion 3035 is used for the aluminum film to pass through. The clamping driver 3031 is connected to the feeding support frame 3010. One end of the clamping transmission member is connected to the output shaft of the clamping driver 3031, and the other end is connected to the first clamping plate 3032. The second clamping plate 3033 is connected to the main body of the clamping driver 3031 and extends toward the direction of the first clamping plate 3032 to be located in the hollow portion 3035. The clamping driver 3031 is used to drive the first clamping plate 3032 to approach or move away from the second clamping plate 3033 to clamp or release the aluminum film in the hollow portion 3035. The second clamping plate 3033 fixed on the clamping driver 3031 serves as a stable reference plane, allowing the first clamping plate 3032 to move relative to the second clamping plate 3033, thereby avoiding alignment errors caused by the simultaneous movement of the first clamping plate 3032 and the second clamping plate 3033, thereby improving the clamping stability and accuracy; clamping can be achieved by moving only the first clamping plate 3032, which can simplify the structure of the first clamping assembly 3030 and the second clamping assembly 3040; the moving parts are concentrated only on the first clamping plate 3032, which is more convenient for maintenance and can compact the occupied space of the aluminum film feeding mechanism 3000; since only the first clamping block needs to move, the clamping driver 3031 and the clamping transmission member can more accurately control the position and speed of the first clamping block, thereby achieving more precise control of the clamping force and the clamping position.

[0054] In an optional embodiment, the clamping driver 3031 can be a clamping lifting motor or a clamping rotating motor, etc. The clamping transmission member can be a screw transmission member, a belt transmission member, a gear rack transmission member, etc.

[0055] For some examples, see Figure 7 and Figure 8The clamping driver 3031 is a clamping rotating motor. The first clamping plate 3032 is penetrated by a clamping guide rail 3034 perpendicular to the vertical direction. The clamping transmission member includes a clamping swing arm 3036, a clamping eccentric shaft 3037 and a clamping bearing 3038. The clamping swing arm 3036 includes a first end and a second end along its own length direction. The first end is connected to the output shaft of the clamping driver 3031, and the second end is connected to the clamping eccentric shaft 3037. The clamping eccentric shaft 3037 is transmission-connected to the clamping guide rail 3034 through the clamping bearing 3038. The second end of the clamping swing arm 3036 moves around the output shaft of the clamping driver 3031 to drive the first clamping plate 3032 to rise or fall through the clamping guide rail 3034. The circular motion of the clamping eccentric shaft 3037 can be converted into the lifting motion of the first clamping plate 3032 through the limiting action of the clamping guide rail 3034, thereby ensuring the high efficiency and accuracy of motion transmission; the clamping eccentric shaft 3037 cooperates with the clamping guide rail 3034 to make the clamping transmission component compact in structure, reduce the occupied space, and reduce the mechanical complexity of the clamping transmission component; the motion conversion process is mainly achieved through the contact between the clamping bearing 3038 and the clamping guide rail 3034, with less friction, reduced wear, and extended service life of the clamping transmission component; under the limiting action of the clamping guide rail 3034, the clamping bearing 3038 moves smoothly, thereby avoiding the shaking of the clamping swing arm 3036 during rotation; by adjusting the length of the clamping guide rail 3034 and the eccentricity of the eccentric shaft, it can adapt to the requirements of different lifting strokes and clamping forces, and the structural design is more flexible. The clamping transmission member adopts a clamping swing arm 3036, a clamping eccentric shaft 3037 and a clamping bearing 3038 to realize the lifting and lowering movement of the first clamping plate 3032, and has the advantages of fast response, simplified structure, reduced friction and wear, easy maintenance, flexible design and smooth movement.

[0056] For some examples, see Figure 6 The feeding support frame 3010 has an operating surface, on which a guide roller 3011 is disposed, and the guide roller 3011 is disposed corresponding to the feeding opening on the aluminum film reel 3021, and there is a distance between the guide roller 3011 and the operating surface. After the aluminum film is fed out from the feeding opening, it is guided to the operating surface via the guide roller 3011.

[0057] For some examples, see Figures 6 to 8 The first clamping assembly 3030 and the second clamping assembly 3040 are further provided with a clamping mounting plate 3039 and a clamping slide rail 3041. The clamping mounting plate 3039 is connected to the main body of the clamping driver 3031. The clamping slide rail 3041 is provided on the clamping mounting plate 3039. The clamping slide rail 3041 is slidably connected to the first clamping plate 3032. By providing the clamping slide rail 3041, the first clamping plate 3032 can be lifted and lowered along the clamping slide rail 3041, which can improve the stability during the movement.

[0058] For some examples, see Figure 6 The operating surface is penetrated by a first receiving hole 3012 and a second receiving hole 3013. The first clamping plates 3032 of the first clamping assembly 3030 and the second clamping assembly 3040 are respectively penetrated by the first receiving hole 3012 and the second receiving hole 3013, so that the hollow parts 3035 of the first clamping plates 3032 of the two are both located above the operating surface. The second clamping plates 3033 of the first clamping assembly 3030 and the second clamping assembly 3040 are respectively arranged close to the first receiving hole 3012 and the second receiving hole 3013, and close to the operating surface of the feeding support frame 3010. Please refer to Figures 6 to 8 The clamping driver 3031, the clamping swing arm 3036, the clamping eccentric shaft 3037 and the clamping bearing 3038 are arranged on the side away from the operating surface. The first receiving hole 3012 and the second receiving hole 3013 are arranged so that the first clamping assembly 3030 and the second clamping assembly 3040 can be embedded in the operating table, saving the external space of the feeding support frame 3010 and making the overall structure of the feeding support frame 3010 more compact.

[0059] For some examples, see Figure 6 The feeding drive assembly 3050 includes a feeding rotary motor 3051, a feeding screw rod 3052, a feeding sliding seat 3053 and a feeding slide rail 3054. The feeding rotary motor 3051 is arranged near the first clamping assembly 3030, and the feeding rotary motor 3051 is connected to the feeding support frame 3010 near the first clamping assembly 3030. One end of the feeding screw rod 3052 is connected to the output end of the feeding rotary motor 3051, and the other end extends to be rotatably connected to the feeding support frame 3010 near the second clamping assembly 3040. The feeding slide seat 3053 is transmission-connected to the feeding screw rod 3052. The feeding slide seat 3053 is connected to the clamping mounting plate 3039 of the second clamping assembly 3040. The feeding slide rail 3054 is arranged on the bottom plate of the feeding support frame 3010, and the feeding slide rail 3054 is slidably connected to the feeding slide seat 3053. The feeding rotating motor 3051 drives the feeding screw 3052 to rotate. Under the transmission of the feeding screw 3052, the feeding sliding seat 3053 moves along the feeding slide rail 3054 toward the direction close to the aluminum film support plate 1020, thereby driving the second clamping assembly 3040 to move toward the aluminum film support plate 1020 relative to the feeding support frame 3010.

[0060] The sample tube clamping mechanism 4000 will be described below: In some embodiments, the sample tube clamping mechanism 4000 includes a clamping support frame 4010, a clamping drive assembly, a clamping transmission assembly and a clamping arm 4040. The clamping drive assembly is used to drive the clamping transmission assembly to drive the clamping arm 4040 to close or open, so as to clamp or loosen the sample tube. In the embodiment of the present application, the clamping drive assembly and the clamping transmission assembly that can drive the clamping arm 4040 to close or open are both within the protection scope of the present application. Exemplarily, the clamping drive assembly can be a clamping rotating motor 4020 or a clamping lifting motor. The clamping transmission assembly can be a connecting rod transmission assembly, a gear shaft transmission assembly, a gear transmission assembly 4030, a gear rack transmission assembly or a worm gear transmission assembly.

[0061] For some examples, see Fig. 9 , the clamping drive assembly is a clamping rotary motor 4020, and the clamping transmission assembly is a gear transmission assembly 4030. The clamping support frame 4010 is connected to the main body of the clamping rotary motor 4020, the gear transmission assembly 4030 is movably connected to the clamping support frame 4010, the output end of the clamping rotary motor 4020 is connected to the gear transmission assembly 4030, the gear transmission assembly 4030 is transmission-connected to the clamp arm 4040, and the clamping rotary motor 4020 is used to drive the gear transmission assembly 4030 to drive the clamp arm 4040 to close or open, so as to clamp or loosen the sample tube. The clamping rotary motor 4020 directly drives the clamp arm 4040 to rotate through the gear transmission assembly 4030, eliminating the transmission mechanism that converts the lifting motion of the clamping lifting motor into a rotating motion, which can make the driving of the clamping rotary motor 4020 more direct and efficient.

[0062] For some examples, see Fig. 9The gear transmission assembly 4030 includes a first gear 4031 , a second gear 4032 , a first rotating shaft 4033 , a second rotating shaft 4034 , a third gear 4035 and a fourth gear 4036 , and the clamping arm 4040 includes a first clamping arm 4041 and a second clamping arm 4042 . The clamping support frame 4010 is arranged at the top end of the clamping rotating motor 4020, and the output end of the clamping rotating motor 4020 is connected to the first gear 4031, and the first rotating shaft 4033 is connected to the second gear 4032 at the bottom end along its own height direction, and the first gear 4031 is meshingly connected with the second gear 4032; the middle part of the first rotating shaft 4033 is rotatably connected to the clamping support frame 4010, and the top end of the first rotating shaft 4033 is connected to the first clamping arm 4041, and the top end of the first rotating shaft 4033 is also sleeved with a third gear 4035; the second rotating shaft 4034 is rotatably connected to the clamping support frame 4010 at the bottom end along its own height direction, and the top end of the second rotating shaft 4034 is connected to the second clamping arm 4042, and the top end of the second rotating shaft 4034 is also sleeved with a fourth gear 4036, and the third gear 4035 is meshingly connected with the fourth gear 4036. The gear meshing stability is high, and the gear transmission can transmit a larger torque, and can provide a higher clamping force, ensuring that the first clamping arm 4041 and the second clamping arm 4042 can firmly clamp the sample tube.

[0063] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0064] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0066] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0067] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0068] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A sample tube sealing device, characterized in that: include: Support the main body; The hot pressure sealing mechanism includes a hot pressure driving component arranged on the supporting body, and an aluminum film support plate and a heating component both connected to the hot pressure driving component. Along the height direction of the hot pressure driving component, the heating component is located above the aluminum film support plate, the aluminum film support plate is penetrated by a through hole for a sample tube to pass through, the projection of the heating component on the aluminum film support plate is at least partially located in the through hole, the aluminum film support plate is used to support the aluminum film and cover the through hole, and the hot pressure driving component is used to drive the aluminum film support plate and the heating component to perform lifting movements.

2. The sample tube sealing device according to claim 1, characterized in that: The sample tube sealing device also includes a film cutting mechanism, which includes a film cutting drive component, a cutting component and a film cutting pressing component. The film cutting drive component is arranged on the supporting body, the cutting component is connected to the film cutting drive component, the film cutting pressing component is elastically connected to the top of the aluminum film support plate, the film cutting pressing component is located on the outside of the through hole, and the film cutting drive component is used to drive the cutting component to descend to abut against the film cutting pressing component.

3. The sample tube sealing device according to claim 2, characterized in that: The film cutting and pressing assembly comprises an aluminum film pressing block, an aluminum film pressing block guide column and a pressing block elastic member, the aluminum film pressing block is located on the top of the aluminum film supporting plate and on the outside of the through hole, the aluminum film pressing block is penetrated by a pressing block movable hole, one end of the aluminum film pressing block guide column is connected to the aluminum film supporting plate, and the other end is penetrated by the pressing block movable hole and is movably connected to the aluminum film pressing block, the bottom end of the pressing block elastic member along its own height direction is connected to the aluminum film supporting plate, and the top end thereof is connected to the aluminum film pressing block, and the cutting assembly is used to press down the aluminum film pressing block; And / or, the cutting assembly includes a tool holder, a blade, a film cutting guide column and a film cutting elastic member, the tool holder is connected to the film cutting drive assembly, the blade is arranged on the tool holder and is located on the outside of the film cutting clamping assembly, the tool holder at least partially extends to the top of the film cutting clamping assembly and is penetrated by a film cutting movable hole, one end of the film cutting guide column is movably connected to the film cutting movable hole, and the other end is located at the top of the film cutting clamping assembly, and the film cutting elastic member is arranged between the tool holder and the film cutting guide column.

4. The sample tube sealing device according to claim 1, characterized in that: The aluminum film supporting plate is convexly provided with a limiting piece, and the limiting piece is located at two sides of the through hole, and the connecting line between the limiting pieces intersects with the feeding direction of the aluminum film.

5. The sample tube sealing device according to claim 1, characterized in that: The heating assembly includes a heating block, a heating rod and a heating block guide pin, the heating block is connected to the hot pressing drive assembly, the heating rod is arranged in the heating block, the heating block guide pin is protruded at the bottom end of the heating block, the heating block guide pin is located at the top of the aluminum film support plate, a hot pressing groove is provided on the side of the heating block guide pin facing the through hole, and the projection of the heating block guide pin on the aluminum film support plate is located in the through hole.

6. The sample tube sealing device according to claim 1, characterized in that: The sample tube sealing device also includes an aluminum film feeding mechanism, which includes a feeding support frame, an aluminum film winding assembly, a first clamping assembly, a second clamping assembly and a feeding drive assembly, the supporting body is connected to the feeding support frame, the first clamping assembly and the feeding drive assembly are both connected to the feeding support frame, the second clamping assembly is movably connected to the feeding support frame, the first clamping assembly and the second clamping assembly are used to clamp or release the aluminum film output by the aluminum film winding assembly, the output shaft of the feeding drive assembly is connected to the second clamping assembly, and is used to drive the second clamping assembly to pull the aluminum film to move toward the aluminum film support plate or retract and reset.

7. The sample tube sealing device according to claim 6, characterized in that: The first clamping assembly and the second clamping assembly both include a clamping driver, a first clamping plate, a second clamping plate and a clamping transmission member. The first clamping plate is penetrated by a hollow portion, and the hollow portion is used for the aluminum film to pass through. The clamping driver is connected to the feeding support frame. One end of the clamping transmission member is connected to the output shaft of the clamping driver, and the other end is connected to the first clamping plate. The second clamping plate is connected to the main body of the clamping driver and extends toward the direction of the first clamping plate to the hollow portion. The clamping driver is used to drive the first clamping plate to approach or move away from the second clamping plate to clamp or release the aluminum film in the hollow portion.

8. The sample tube sealing device according to claim 7, characterized in that: The clamping driver is a clamping rotating motor, and the first clamping plate is penetrated by a clamping guide rail perpendicular to the vertical direction. The clamping transmission component includes a clamping swing arm, a clamping eccentric shaft and a clamping bearing. The clamping swing arm includes a first end and a second end along its own length direction, the first end is connected to the output shaft of the clamping driver, and the second end is connected to the clamping eccentric shaft. The clamping eccentric shaft is transmission-connected to the clamping guide rail through the clamping bearing, and the second end of the swing arm moves around the output shaft of the clamping driver to drive the first clamping plate to rise or fall through the clamping guide rail.

9. The sample tube sealing device according to any one of claims 1 to 8, characterized in that: The sample tube sealing device also includes a sample tube clamping mechanism, which includes a clamping support frame, a clamping rotating motor, a gear transmission assembly and a clamping arm. The clamping support frame is connected to the main body of the clamping rotating motor, the gear transmission assembly is movably connected to the clamping support frame, the output end of the clamping rotating motor is connected to the gear transmission assembly, and the gear transmission assembly is transmission-connected to the clamping arm. The clamping rotating motor is used to drive the gear transmission assembly to drive the clamping arm to retract or open so as to clamp or release the sample tube.

10. The sample tube sealing device according to claim 9, characterized in that: The gear transmission assembly includes a first gear, a second gear, a first rotating shaft, a second rotating shaft, a third gear and a fourth gear, the clamping arm includes a first clamping arm and a second clamping arm, the clamping support is mounted on the top end of the clamping rotating motor, the output end of the clamping rotating motor is connected to the first gear, the bottom end of the first rotating shaft along its own height direction is connected to the second gear, and the first gear is meshingly connected to the second gear; the middle part of the first rotating shaft is rotatably connected to the clamping support, the top end of the first rotating shaft is connected to the first clamping arm, and the top end of the first rotating shaft is also sleeved with the third gear; the bottom end of the second rotating shaft along its own height direction is rotatably connected to the clamping support, the top end of the second rotating shaft is connected to the second clamping arm, and the top end of the second rotating shaft is also sleeved with the fourth gear, and the third gear is meshingly connected to the fourth gear.

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