Sample tube sealing device

Abstract

A sample tube sealing device, wherein the sample tube sealing device comprises a support body and a hot-press sealing mechanism. The hot-press sealing mechanism comprises a hot-press driving assembly arranged on the support body, and an aluminum film supporting plate and a heating assembly both connected to the hot-press driving assembly. In the height direction of the hot-press driving assembly, the heating assembly is arranged above the top of the aluminum film supporting plate, a through hole allowing a sample tube to pass through runs through the aluminum film supporting plate, the projection of the heating assembly on the aluminum film supporting plate is at least partially located within the through hole, the aluminum film supporting plate is used for supporting an aluminum film and enabling same to cover the through hole, and the hot-press driving assembly is used for driving the aluminum film supporting plate and the heating assembly to move up and down. The sample tube sealing device requires no additional mechanism, and the hot-press sealing mechanism achieves in-situ heat sealing with an aluminum film, thereby reducing pre-sealing steps, improving production efficiency, and avoiding degradation of sealing quality and consistency due to displacement.

Description

Sample tube sealing device Technical Field

[0001] This application relates to the field of laboratory automation systems technology, and in particular to a sample tube sealing device. Background Technology

[0002] Sample tubes used to store reagents or medicines are sealed with aluminum foil to ensure their airtightness. In related technologies, sample tube sealing devices include a translation mechanism, a heat-sealing mechanism connected to the translation mechanism, and a heat-sealing conforming mechanism. The heat-sealing mechanism heat-presses and cuts the aluminum foil, and then the translation mechanism moves the heat-sealing conforming mechanism to the cut aluminum foil, sealing it to the sample tube with heat pressure. However, this type of sample tube sealing device has the following problems: the addition of an extra translation mechanism increases the structural complexity of the sealing device; the heat-sealing conforming mechanism needs to be adjusted in position via the translation mechanism to align with the aluminum foil, increasing the pre-sealing steps, reducing production efficiency, and easily causing inaccurate positioning, affecting sealing quality and consistency.

[0003] Summary of the Invention

[0004] Based on this, it is necessary to address the increased structural complexity of the sample tube sealing device due to the addition of an extra translation mechanism; the heat-sealing conforming 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 is prone to causing inaccurate positional correspondence, thus affecting sealing quality and consistency. Therefore, a sample tube sealing device is provided.

[0005] A sample tube sealing device, comprising:

[0006] Supporting entity;

[0007] The hot-press sealing mechanism includes a hot-press driving assembly disposed on the supporting body, and an aluminum film support plate and a heating assembly both connected to the hot-press driving assembly. Along the height direction of the hot-press driving assembly, the heating assembly is spaced at the top of the aluminum film support plate. The aluminum film support plate has a through hole for sample tubes to pass through. The projection of the heating assembly on the aluminum film support plate is at least partially located within the through hole. The aluminum film support plate is used to support the aluminum film and cover the through hole. The hot-press driving assembly is used to drive the aluminum film support plate and the heating assembly to perform lifting and lowering movements.

[0008] In one embodiment, the sample tube sealing device further includes a film cutting mechanism, which comprises a film cutting drive assembly, a cutting assembly, and a film cutting and pressing assembly. The film cutting drive assembly is mounted on the support body, the cutting assembly is connected to the film cutting drive assembly, and the film cutting and pressing assembly is elastically connected to the top of the aluminum film support plate. The film cutting and pressing assembly is located outside the through hole. The film cutting drive assembly drives the cutting assembly to descend and abut against the film cutting and pressing assembly, causing the film cutting and pressing assembly to press the aluminum film located on the through hole. Simultaneously, the cutting assembly descends to cut the aluminum film. Through the cooperation between the cutting assembly and the film cutting and pressing assembly, the aluminum film can be cut while pressing the aluminum film on the aluminum film support plate, preventing the aluminum film from sliding and shifting during cutting, improving cutting accuracy, ensuring accurate cutting position, and ensuring the flatness of the aluminum film, avoiding poor sealing caused by uneven aluminum film. In addition, by triggering the film cutting and pressing assembly to press the aluminum film by the cutting assembly, automatic pressing can be achieved, ensuring synchronization of cutting and pressing, further improving film cutting consistency. The film cutting and pressing assembly is set on the aluminum film support plate so that the process of pressing the aluminum film occurs on the hot-press sealing mechanism, rather than outside of it. This simplifies the structure of the sample tube sealing device and reduces the number of external components.

[0009] In one embodiment, the film cutting and pressing assembly includes an aluminum film pressing block, an aluminum film pressing block guide post, and a pressing block elastic member. The aluminum film pressing block is located at the top of the aluminum film support plate and outside the through hole. The aluminum film pressing block has a pressing block movable hole. The bottom end of the aluminum film pressing block guide post along its own height direction is connected to the aluminum film support plate, and its top end passes through 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 support plate, and its top end is connected to the aluminum film pressing block. The cutting assembly is used to press down the aluminum film pressing block.

[0010] And / or, the cutting assembly includes a blade holder, a blade, a cutting guide post, and a cutting elastic element. The blade holder is connected to the cutting drive assembly. The blade is disposed on the blade holder and located outside the cutting clamping assembly. The blade holder extends at least partially to the top of the cutting clamping assembly and has a through-hole for cutting. The top end of the cutting guide post along its height direction is movably connected to the cutting hole, and its bottom end is located at the top of the cutting clamping assembly. The cutting elastic element is disposed between the blade holder and the cutting guide post. By setting the clamping elastic element, the aluminum film clamping block can be automatically reset, and the clamping effect on aluminum films of different thicknesses can be improved. By setting the cutting guide post and the cutting elastic element, precise control of the pressure position and cutting position of the cutting clamping assembly can be achieved, providing stable support and guidance. On the one hand, it can ensure accurate cutting by the blade, and on the other hand, it can ensure accurate pressure application by the blade holder.

[0011] In one embodiment, the aluminum film support plate has protruding limiting members located on both sides of the through hole, and the line connecting the limiting members intersects the feeding direction of the aluminum film. The limiting members serve as positioning points for the aluminum film conveying, ensuring consistent positioning of the aluminum film each time it is conveyed and preventing the aluminum film from shifting during the conveying process.

[0012] In one embodiment, the heating assembly includes a heating block, a heating rod, and a heating block guide post. The heating block is connected to the thermo-pressing drive assembly, the heating rod is disposed within the heating block, and the heating block guide post protrudes from the bottom end of the heating block. The heating block guide post is located at the top of the aluminum film support plate, and a thermo-pressing groove is provided on the side of the heating block guide post facing the through hole. The projection of the heating block guide post on the aluminum film support plate is located within the through hole. The heating block guide post helps to concentrate heat in the through hole area, allowing for more accurate heating of the aluminum film on the sample tube opening at the through hole and reducing heat loss.

[0013] In one embodiment, the sample tube sealing device further includes an aluminum film feeding mechanism. The aluminum film feeding mechanism includes a feeding support frame, an aluminum film winding assembly, a first clamping assembly, a second clamping assembly, and a feeding drive assembly. The support 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 passing through 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 towards the aluminum film support plate or to retract and reset it. Because the first clamping assembly clamps the remaining aluminum film when the second clamping assembly retracts, it can prevent the remaining aluminum film from being moved or deformed by the second clamping assembly.

[0014] In one embodiment, both the first clamping assembly and the second clamping assembly include a clamping driver, a first clamping plate, a second clamping plate, and a clamping transmission member. The first clamping plate has a hollow portion through which the aluminum film passes. 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 body of the clamping driver and extends toward the first clamping plate into the hollow portion. The clamping driver is used to drive the first clamping plate to move closer to or away from the second clamping plate to clamp or release the aluminum film located in the hollow portion. The second clamping plate, fixed to the clamping driver, serves as a stable reference surface, allowing the first clamping plate to move relative to it. This avoids alignment errors caused by the simultaneous movement of the first and second clamping plates, thereby improving clamping stability and accuracy. Clamping can be achieved simply by moving the first clamping plate, simplifying the structure of the first and second clamping assemblies. The moving parts are concentrated only on the first clamping plate, making maintenance more convenient and allowing for a more compact use of the aluminum film feeding mechanism. Since only the first clamping block needs to move, the clamping driver and clamping transmission components can more precisely control the position and speed of the first clamping block, thus achieving more precise control over the clamping force and clamping position.

[0015] In one embodiment, the clamping actuator is a clamping rotary motor. The first clamping plate is permeated with 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 has a first end and a second end along its length. The first end is connected to the output shaft of the clamping actuator, and the second end is connected to the clamping eccentric shaft. The clamping eccentric shaft is connected to the clamping guide rail via the clamping bearing. The second end of the swing arm moves around the output shaft of the clamping actuator to drive the first clamping plate to rise or fall via the clamping guide rail. The clamping transmission component, using a clamping swing arm, a clamping eccentric shaft, and a clamping bearing to achieve the lifting and lowering movement of the first clamping plate, has advantages such as fast response, simplified structure, reduced friction and wear, easy maintenance, flexible design, and smooth movement.

[0016] In one embodiment, the sample tube sealing device further includes a sample tube clamping mechanism. The sample tube clamping mechanism includes a clamping support frame, a clamping rotary motor, a gear transmission assembly, and a clamping arm. The clamping support frame is connected to the main body of the clamping rotary motor. The gear transmission assembly is movably connected to the clamping support frame. The output end of the clamping rotary motor is connected to the gear transmission assembly, which is drively connected to the clamping arm. The clamping rotary motor drives the gear transmission assembly to retract or open the clamping arm, thereby clamping or releasing the sample tube. The clamping rotary motor directly drives the clamping arm to rotate via the gear transmission assembly, eliminating the need for a transmission mechanism that converts the lifting motion of the clamping lifting motor into rotational motion, making the drive of the clamping rotary motor more direct and efficient.

[0017] 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 arms include a first clamping arm and a second clamping arm. The clamping support is mounted on the top of the clamping rotary motor. The output end of the clamping rotary motor is connected to the first gear. The bottom end of the first rotating shaft along its height direction is connected to the second gear, and the first gear and the second gear are meshed together. The middle part of the first rotating shaft is rotatably connected to the clamping support, and the top end of the first rotating shaft is connected to the first clamping arm. The top end of the first rotating shaft is also fitted with the third gear. The bottom end of the second rotating shaft along its height direction is rotatably connected to the clamping support, and the top end of the second rotating shaft is connected to the second clamping arm. The top end of the second rotating shaft is also fitted with the fourth gear, and the third gear and the fourth gear are meshed together. The gear meshing stability is high, and the gear transmission can transmit a large torque, providing a high clamping force to ensure that the first and second clamping arms can firmly clamp the sample tube.

[0018] The aforementioned sample tube sealing device includes a support body and a hot-press sealing mechanism. An aluminum film support plate on the hot-press sealing mechanism supports the aluminum film, which covers a through-hole on the support plate. The hot-press drive assembly lowers the aluminum film support plate and heating assembly together until the sample tube passes through the through-hole. The sample tube pushes up the aluminum film on the support plate through the through-hole. As the support plate and heating assembly continue to descend, the sample tube opening comes into contact with the heating assembly, which heats and seals the aluminum film at the sample tube opening. Therefore, this solution, by using an aluminum film support plate on the hot-press sealing mechanism to support the cut aluminum film and creating a through-hole on the support plate, allows the hot-press drive assembly to directly lower the mechanism to the aluminum film at the sample tube opening for hot-press sealing. This allows the aluminum film sealing step to be performed directly in place within the hot-press sealing mechanism, eliminating the need for a translation mechanism for alignment and removing additional alignment steps, resulting in a faster sealing process and higher production efficiency. Furthermore, the heating component located above the aluminum film tray provides a more consistent hot-pressing effect, reducing sealing errors caused by alignment shifts and improving sealing quality. Additionally, since the aluminum film is sealed in situ within the hot-pressing sealing mechanism, a translation mechanism is unnecessary, simplifying the structure of the sample tube sealing device and reducing complexity. Attached Figure Description

[0019] To better describe and illustrate embodiments of the inventions disclosed herein, reference may be made to one or more accompanying drawings. Additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed inventions, the embodiments currently described, or the best mode of these inventions as currently understood.

[0020] Figure 1 is a side view of a sample tube sealing device provided in an embodiment of this application.

[0021] Figure 2 is a perspective view of the hot-press sealing mechanism and the film cutting mechanism provided in the embodiments of this application.

[0022] Figure 3 is a perspective view of the hot-press sealing mechanism provided in the embodiment of this application.

[0023] Figure 4 is a perspective view of the film cutting mechanism provided in the embodiment of this application.

[0024] Figure 5 is a perspective view of the film cutting and pressing assembly and the cutting assembly provided in the embodiments of this application.

[0025] Figure 6 is a perspective view of the aluminum film feeding mechanism provided in the embodiment of this application.

[0026] Figure 7 is a perspective view of the first clamping assembly provided in an embodiment of this application.

[0027] Figure 8 is a perspective view of the second clamping assembly provided in an embodiment of this application.

[0028] Figure 9 is a perspective view of the sample tube clamping mechanism provided in the embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 10000, Sample tube sealing device; 1000, Hot-press sealing mechanism; 1010, Hot-press drive assembly; 1011, Hot-press rotary motor; 1012, Hot-press lead screw; 1013, Hot-press slide rail; 1014, Hot-press sliding seat; 1020, Aluminum film support plate; 1021, Through hole; 1022, Limiting component; 1030, Heating assembly; 1031, Heating block; 1032, Heating rod; 1033, Heating block guide post; 1034, Hot-press groove; 1040, Pressure stabilizing assembly; 1041, Pressure stabilizing mounting plate; 1042, Pressure stabilizing guide rod; 1043, Pressure stabilizing slider; 1044, Pressure stabilizing elastic component; 2000, Film cutting mechanism; 2010, Film cutting drive assembly; 2011, Film cutting mounting plate; 2012, Film cutting slide rail; 2013, ... Film cutting rotary 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, blade holder; 2022, blade; 2023, film cutting guide post; 2024, film cutting elastic element; 2030, film cutting clamping assembly; 2031, aluminum film clamping block; 2032, aluminum film clamping block guide post; 2033, clamping block elastic element; 3000, aluminum film feeding mechanism; 3010, feeding support frame; 3011, guide roller; 3012, first receiving hole; 3013, Second receiving hole; 3020, Aluminum film winding assembly; 3021, Aluminum film roll; 3022, Roll support frame; 3030, First clamping assembly; 3040, Second clamping assembly; 3031, Clamping driver; 3032, First clamping plate; 3033, Second clamping plate; 3034, Clamping guide rail; 3035, Hollow section; 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 rotary motor; 3052, Feeding screw; 3053, Feeding sliding seat; 3054, Feeding slide rail; 4000 Sample tube clamping mechanism; 4010 Clamping support frame; 4020 Clamping rotary 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; 5000 Support body. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] This application provides a sample tube sealing device 10000, including a support body 5000, a hot-press sealing mechanism 1000, a film cutting mechanism 2000, an aluminum film feeding mechanism 3000, and a sample tube clamping mechanism 4000. The support body 5000 is used to fix the hot-press sealing mechanism 1000 and the film cutting mechanism 2000. The aluminum film feeding mechanism 3000 is used to feed aluminum film to the hot-press sealing mechanism 1000. The film cutting mechanism 2000 is used to cut the aluminum film on the hot-press sealing mechanism 1000. The sample tube clamping mechanism 4000 is used to clamp the sample tube at the bottom end of the hot-press sealing mechanism 1000.

[0032] First, let's introduce the hot-press sealing mechanism 1000: Referring to Figure 3, in some embodiments, the hot-press sealing mechanism 1000 includes a hot-press driving assembly 1010 disposed on the support 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 has 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 within the through hole 1021. The aluminum film support plate 1020 is used to support the aluminum film and cover the through hole 1021. 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, which covers the through hole 1021 on the aluminum film support plate 1020. The hot-press driving assembly 1010 drives the aluminum film support plate 1020 and the heating assembly 1030 to descend together until the sample tube passes through the through hole 1021. The sample tube pushes up the aluminum film on the aluminum film support plate 1020 through the through hole 1021. As the aluminum film support plate 1020 and the heating assembly 1030 continue to descend, the end of the sample tube abuts against the heating assembly 1030. The heating assembly 1030 heats and seals the aluminum film on the end of the sample tube. Therefore, this application's solution, by setting an aluminum film support plate 1020 on the hot-press sealing mechanism 1000 to support the cut aluminum film, and opening a through hole 1021 on the aluminum film support plate 1020, allows the hot-press sealing mechanism 1000 to directly descend to hot-press and seal the aluminum film at the sample tube opening under the drive of the hot-press driving component 1010. This allows the aluminum film sealing step to be performed directly in place within the hot-press sealing mechanism 1000, eliminating the need for a translation mechanism for alignment and removing additional alignment steps, resulting in a faster sealing process and higher production efficiency. Furthermore, the heating component 1030 located above the aluminum film support plate 1020 provides a more consistent hot-pressing effect, reducing sealing errors caused by alignment movement and improving sealing quality. Additionally, since the aluminum film is sealed in place within the hot-press sealing mechanism 1000, a translation mechanism is unnecessary, simplifying the structure of the sample tube sealing device 10000 and reducing complexity.

[0033] In some embodiments, referring to Figure 3, a limiting member 1022 protrudes from the aluminum film tray 1020. The limiting member 1022 is located on both sides of the through hole 1021, and the line connecting the limiting members 1022 intersects the feeding direction of the aluminum film. By setting the limiting member 1022 as the positioning point for aluminum film conveying, the aluminum film is always in the correct feeding position during the process of being conveyed to the aluminum film tray 1020, ensuring that the position of the aluminum film is consistent with each conveying, which is beneficial to the accuracy of cutting and sealing, and improves the quality of sealing. In addition, it can stabilize the aluminum film and prevent movement caused by vibration or mechanical action during the conveying process from affecting the transmission of the aluminum film. Optionally, the limiting member 1022 can be a threaded pin, guide groove, slot, or column, etc.

[0034] In some embodiments, referring to Figure 3, the hot-press drive assembly 1010 includes a hot-press rotary motor 1011, a hot-press lead screw 1012, a hot-press slide rail 1013, and a hot-press sliding seat 1014. The hot-press slide rail 1013 and the hot-press rotary motor 1011 are mounted on the support body 5000. One end of the hot-press lead screw 1012 is connected to the output end of the hot-press rotary motor 1011, and the other end is rotatably connected to the support body 5000. The hot-press sliding seat 1014 is driven by the hot-press lead screw 1012 and slidably connected to the hot-press slide rail 1013. The heating assembly 1030 and the aluminum film support plate 1020 are both mounted on the hot-press sliding seat 1014. The hot-press rotary motor 1011 drives the hot-press lead screw 1012 to rotate, thereby driving the hot-press sliding seat 1014 to perform lifting and lowering movements. The hot-press drive assembly 1010 can also be other types of lifting assemblies. This application embodiment does not specifically limit this type of assembly. For example, it can be a gear and rack lifting assembly or a synchronous belt and synchronous pulley lifting assembly.

[0035] In some embodiments, referring to 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 thermopressing drive assembly 1010. The heating rod 1032 is disposed within the heating block 1031. The heating block guide post 1033 protrudes from the bottom end of the heating block 1031 and is located at the top of the aluminum film support plate 1020. A thermopressing groove 1034 is provided on the side of the heating block guide post 1033 facing the through hole 1021. The projection of the heating block guide post 1033 on the aluminum film support plate 1020 is located within the through hole 1021. The heating block guide post 1033 helps to concentrate heat in the through hole 1021 area, allowing for more accurate heating of the aluminum film on the sample tube opening at the through hole 1021 and reducing heat loss. In some embodiments, the heating block 1031 is disposed on the thermopressing sliding seat 1014. In some embodiments, the groove size of the hot-pressing groove 1034 matches the nozzle size of the sample tube to hot-press and seal the aluminum film onto the sample tube.

[0036] In some embodiments, referring to Figures 2 and 3, the hot-press sealing mechanism 1000 further 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 element 1044. The pressure stabilizing mounting plate 1041 is connected to the support body 5000. The top end of the pressure stabilizing guide rod 1042 along its height direction is connected to the pressure stabilizing mounting plate 1041, and its bottom end is slidably connected to the pressure stabilizing slider 1043. The pressure stabilizing slider 1043 is fixedly connected to the hot-press sliding seat 1014. The pressure stabilizing elastic element 1044 is vertically connected between the pressure stabilizing mounting plate 1041 and the pressure stabilizing slider 1043. When the hot-press sliding seat 1014 descends, it drives the pressure stabilizing slider 1043 to descend relative to the pressure stabilizing mounting plate 1041 along the pressure stabilizing guide rod 1042, and the pressure stabilizing elastic element 1044 is stretched under the pull of the pressure stabilizing slider 1043. When the hot-pressing sliding seat 1014 descends to the point where the heating block guide post 1033 hot-presses and seals the aluminum film on the sample tube, the tensile force on the pressure-stabilizing elastic element 1044 is the sealing pressure on the sample tube. The pressure-stabilizing component 1040 provides a certain buffering effect, reducing impact damage to the sample tube during the hot-pressing process.

[0037] For example, the pressure-stabilizing elastic element 1044 may be a spring, torsion spring, or sheet spring, etc.

[0038] In some embodiments, referring to Figure 3, the pressure stabilizing slider 1043 is connected to the heating block 1031, so that the pressure stabilizing component 1040 is positioned close to the heating component 1030. This allows for a more compact structure of the hot-press sealing mechanism 1000, better synchronization between the pressure stabilizing component 1040 and the heating component 1030, improved accuracy of pressure control, and more consistent pressure changes during the hot-pressing process, which is beneficial for improving sealing quality.

[0039] Next, the film cutting mechanism 2000 is introduced: Please refer to Figure 4. In some embodiments, the film cutting mechanism 2000 includes a film cutting drive assembly 2010, a cutting assembly 2020, and a film cutting clamping assembly 2030. Please refer to Figure 2. The film cutting drive assembly 2010 is disposed on the support body 5000. Please refer to Figure 4. The cutting assembly 2020 is connected to the film cutting drive assembly 2010. The film cutting clamping assembly 2030 is elastically connected to the top of the aluminum film support plate 1020. The film cutting clamping assembly 2030 is located outside the through hole 1021. The film cutting drive assembly 2010 is used to drive the cutting assembly 2020 to descend to abut against the film cutting clamping assembly 2030, and to make the film cutting clamping assembly 2030 press the aluminum film located on the through hole 1021. At the same time, the cutting assembly 2020 descends to cut the aluminum film. Therefore, through the cooperation between the cutting component 2020 and the film-cutting and pressing component 2030, the aluminum film on the aluminum film tray 1020 can be cut simultaneously. This prevents the aluminum film from sliding or shifting during cutting, improves cutting accuracy, ensures accurate cutting position, and maintains the flatness of the aluminum film, avoiding poor sealing caused by unevenness. Furthermore, by triggering the film-cutting and pressing component 2030 to press the aluminum film, automatic pressing is achieved, ensuring synchronization of cutting and pressing, further improving film-cutting consistency. The film-cutting and pressing component 2030 is positioned on the aluminum film tray 1020, allowing the pressing process to occur on the thermo-sealing mechanism 1000, rather than outside of it, simplifying the structure of the sample tube sealing device and reducing external components.

[0040] In some embodiments, referring to Figures 4 and 5, the film cutting and pressing assembly 2030 includes an aluminum film pressing block 2031, an aluminum film pressing block guide post 2032, and a pressing block elastic member 2033. Referring to Figure 5, the aluminum film pressing block 2031 is located at the top of the aluminum film support plate 1020 and outside the through hole 1021. The aluminum film pressing block 2031 has a through-hole. The bottom end of the aluminum film pressing block guide post 2032 along its height direction is connected to the aluminum film support plate 1020, and its top end passes through the pressing block movable hole and is movably connected to the aluminum film pressing block 2031. The bottom end of the pressing block elastic member 2033 along its height direction is connected to the aluminum film support plate 1020, and its top end is connected to the aluminum film pressing block 2031. Referring to Figure 4, the film cutting guide post 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 post 2023, the aluminum film pressing block 2031 slides downward along the aluminum film pressing block guide post 2032, the pressing block elastic element 2033 is compressed, and the aluminum film pressing block 2031 slides to press the aluminum film on the aluminum film support plate 1020. By setting the pressing block elastic element 2033, the aluminum film pressing block 2031 can be automatically reset, and the pressing effect on aluminum films of different thicknesses can be improved.

[0041] For example, the pressure block elastic element 2033 may be a spring, torsion spring, or sheet spring, etc.

[0042] In some embodiments, referring to FIG4, the cutting assembly 2020 includes a blade holder 2021, a blade 2022, a film-cutting guide post 2023, and a film-cutting elastic member 2024. The blade holder 2021 is connected to the film-cutting drive assembly 2010. The blade 2022 is disposed on the blade holder 2021 and located outside the film-cutting clamping assembly 2030. The blade holder 2021 extends at least partially to the top of the film-cutting clamping assembly 2030 and has a film-cutting movable hole through it. The top end of the film-cutting guide post 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. The film-cutting elastic member 2024 is disposed between the blade holder 2021 and the film-cutting guide post 2023. The cutting drive assembly 2010 drives the blade holder 2021 to descend, and the cutting guide post 2023 abuts against the cutting clamping assembly 2030. The blade holder 2021 slides along the cutting guide post 2023 and compresses the cutting elastic element 2024. The cutting guide post 2023 further presses down on the cutting clamping assembly 2030, causing the cutting clamping assembly 2030 to press the aluminum film firmly. By setting the cutting guide post 2023 and the cutting elastic element 2024, precise control of the pressure application position and cutting position of the cutting clamping assembly 2030 can be achieved, providing stable support and guidance. On the one hand, this ensures accurate cutting by the blade 2022, and on the other hand, it ensures accurate pressure application by the blade holder 2021.

[0043] In some embodiments, referring to Figure 5, the top end of the cutting guide post 2023 along its own height direction is movably connected to the cutting motion hole on the cutter holder 2021, and the bottom end of the cutting guide post 2023 is located on top of the aluminum film pressing block 2031 in the cutting pressing assembly 2030. The cutting drive assembly 2010 drives the cutter holder 2021 to descend, and the cutting guide post 2023 abuts against the aluminum film pressing block 2031, so that the aluminum film pressing block 2031 presses the aluminum film.

[0044] For example, the membrane elastic element 2024 may be a spring, torsion spring, or sheet spring, etc.

[0045] In some embodiments, referring to Figure 4, the film cutting drive assembly 2010 includes a film cutting mounting plate 2011, a film cutting slide rail 2012, a film cutting rotary 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. Referring to Figure 2, the main body of the film cutting rotary motor 2013 is connected to the support body 5000. Referring to Figure 4, the film cutting mounting plate 2011 is connected to the main body of the film cutting rotary motor 2013, the film cutting slide rail 2012 is disposed 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 is connected to the output shaft of the film-cutting rotary motor 2013, and the other end is connected to the film-cutting bearing 2016 via the film-cutting eccentric shaft 2015. Driven by the film-cutting rotary motor 2013, the film-cutting swing arm 2014 moves in a circular motion with its output shaft as the center. 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 rotary motor 2013 drives the film-cutting swing arm 2014 to move the film-cutting eccentric shaft 2015 in a circular motion, and drives the film-cutting bearing 2016 to slide along the film-cutting guide rail 2018, thereby causing the film-cutting support block 2017 to rise or fall relative to the film-cutting slide rail 2012, thus causing the cutter holder 2021 to rise or fall.

[0046] Next, the aluminum film feeding mechanism 3000 is introduced: 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 drive assembly 3050. Please refer to Figure 1, the support body 5000 is connected to the feeding support frame 3010. Please refer to Figure 6, both the first clamping assembly 3030 and the feeding drive assembly 3050 are 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 passing through 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 towards the aluminum film support plate 1020 or to retract and reset. During the feeding process, aluminum film is pulled out from the aluminum film winding assembly 3020, and then sequentially passes through the first clamping assembly 3030 and the second clamping assembly 3040. After the second clamping assembly 3040 clamps the aluminum film, the feeding drive assembly 3050 drives the second clamping assembly 3040 to move towards the aluminum film support plate 1020, and conveys the aluminum film onto the aluminum film support plate 1020. After the film cutting structure cuts the aluminum film on the aluminum film support plate 1020, the second clamping assembly 3040 releases the remaining aluminum film located on the feeding support frame 3010, the first clamping assembly 3030 clamps the remaining aluminum film, and the aluminum film feeding drive assembly 3050 drives the second clamping assembly 3040 to retract and reset, ready for the next feeding. Because the first clamping assembly 3030 clamps the remaining aluminum film when the second clamping assembly 3040 retracts, it can prevent the remaining aluminum film from being moved or deformed by the second clamping assembly 3040.

[0047] In some embodiments, referring to Figure 6, the aluminum film winding assembly 3020 includes an aluminum film roll 3021 and a roll support frame 3022. The aluminum film roll 3021 is disposed on the roll support frame 3022. The aluminum film roll 3021 includes a drum and a spool. The spool is rotatably connected to the drum. The spool winds multiple layers of aluminum film. The drum is provided with a feeding opening through which the aluminum film passes out.

[0048] In some embodiments, please refer to Figures 7 and 8, where Figure 7 is a perspective view of the first clamping assembly 3030 and Figure 8 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 has a hollow portion 3035 through it, which 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 body of the clamping driver 3031 and extends towards the first clamping plate 3032 into the hollow portion 3035. The clamping driver 3031 is used to drive the first clamping plate 3032 to move closer to or away from the second clamping plate 3033 to clamp or release the aluminum film located in the hollow portion 3035. The second clamping plate 3033, fixed on the clamping driver 3031, serves as a stable reference surface, allowing the first clamping plate 3032 to move relative to the second clamping plate 3033. This avoids alignment errors caused by the simultaneous movement of the first clamping plate 3032 and the second clamping plate 3033, thereby improving clamping stability and accuracy. Clamping can be achieved simply by moving the first clamping plate 3032, simplifying 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, making maintenance more convenient and allowing for a more compact use of the aluminum film feeding mechanism 3000. Since only the first clamping block needs to move, the clamping driver 3031 and the clamping transmission component can more precisely control the position and speed of the first clamping block, thereby achieving more precise control over the clamping force and clamping position.

[0049] In an optional embodiment, the clamping driver 3031 may be a clamping lifting motor or a clamping rotating motor, etc. The clamping transmission component may be a lead screw drive, a belt drive, or a gear and rack drive, etc.

[0050] In some embodiments, referring to Figures 7 and 8, the clamping driver 3031 is a clamping rotary motor. The first clamping plate 3032 is provided with a clamping guide rail 3034 perpendicular to the vertical direction. The clamping transmission component 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 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, limited by the clamping guide rail 3034, can be converted into the lifting motion of the first clamping plate 3032, ensuring efficient and accurate motion transmission. The clamping eccentric shaft 3037, in conjunction with the clamping guide rail 3034, makes the clamping transmission component structure compact, reducing space occupation and mechanical complexity. The motion conversion process mainly involves contact between the clamping bearing 3038 and the clamping guide rail 3034, resulting in low 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, preventing vibration during the rotation of the clamping swing arm 3036. By adjusting the length of the clamping guide rail 3034 and the eccentricity of the eccentric shaft, it can adapt to different lifting strokes and clamping force requirements, making the structural design more flexible. The clamping transmission component uses 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. It has the advantages of fast response, simplified structure, reduced friction and wear, easy maintenance, flexible design, and smooth movement.

[0051] In some embodiments, referring to Figure 6, the feeding support frame 3010 has an operating surface, on which a guide roller 3011 is provided. The guide roller 3011 is correspondingly arranged with the feeding opening on the aluminum film roll 3021, and there is a gap between the guide roller 3011 and the operating surface. When the aluminum film passes through the feeding opening, it is guided onto the operating surface via the guide roller 3011.

[0052] In some embodiments, referring to 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, and the clamping slide rail 3041 is disposed on the clamping mounting plate 3039 and is slidably connected to the first clamping plate 3032. By providing the clamping slide rail 3041, the first clamping plate 3032 can move up and down along the clamping slide rail 3041, which can improve the stability during the movement.

[0053] In some embodiments, referring to FIG6, the operating surface is provided with 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 respectively pass through the first receiving hole 3012 and the second receiving hole 3013, so that the hollow portions 3035 of the first clamping plates 3032 of both are located above the operating surface. The second clamping plates 3033 of the first clamping assembly 3030 and the second clamping assembly 3040 are respectively disposed near the first receiving hole 3012 and the second receiving hole 3013, and are close to the operating surface of the feeding support frame 3010. Referring to FIGS. 6 to 8, the clamping driver 3031, the clamping swing arm 3036, the clamping eccentric shaft 3037, and the clamping bearing 3038 are disposed on the side opposite to the operating surface. The first receiving hole 3012 and the second receiving hole 3013 enable the first clamping component 3030 and the second clamping component 3040 to 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.

[0054] In some embodiments, referring to FIG6, the feeding drive assembly 3050 includes a feeding rotary motor 3051, a feeding screw 3052, a feeding slide block 3053, and a feeding slide rail 3054. The feeding rotary motor 3051 is disposed near the first clamping assembly 3030 and connected to a feeding support frame 3010 near the first clamping assembly 3030. One end of the feeding screw 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 block 3053 is drively connected to the feeding screw 3052. The feeding slide block 3053 is connected to the clamping mounting plate 3039 of the second clamping assembly 3040. The feeding slide rail 3054 is disposed on the base plate of the feeding support frame 3010 and is slidably connected to the feeding slide block 3053. The feeding rotary 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 aluminum film support plate 1020, thereby driving the second clamping assembly 3040 to move relative to the feeding support frame 3010 toward the aluminum film support plate 1020.

[0055] 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 retract or open, so as to clamp or release the sample tube. In the embodiments of this application, both the clamping drive assembly and the clamping transmission assembly capable of driving the clamping arm 4040 to retract or open are within the protection scope of this application. Exemplarily, the clamping drive assembly may be a clamping rotary motor 4020 or a clamping lifting motor. The clamping transmission assembly may be a linkage transmission assembly, a gear shaft transmission assembly, a gear transmission assembly 4030, a gear and rack transmission assembly, or a worm gear transmission assembly.

[0056] In some embodiments, referring to Figure 9, the clamping drive assembly is a clamping rotary motor 4020, and the clamping transmission assembly is a gear transmission assembly 4030. A clamping support frame 4010 is connected to the main body of the clamping rotary motor 4020, and 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, which is drively connected to the clamping arm 4040. The clamping rotary motor 4020 drives the gear transmission assembly 4030 to drive the clamping arm 4040 to retract or open, thereby clamping or releasing the sample tube. The clamping rotary motor 4020 directly drives the clamping arm 4040 to rotate via the gear transmission assembly 4030, eliminating the need for a transmission mechanism that converts the lifting motion of the clamping lifting motor into rotational motion, making the drive of the clamping rotary motor 4020 more direct and efficient.

[0057] In some embodiments, please refer to FIG9, the 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. A clamping support frame 4010 is located at the top of a clamping rotary motor 4020. The output end of the clamping rotary motor 4020 is connected to a first gear 4031. The bottom end of a first rotating shaft 4033 along its own height direction is connected to a second gear 4032. The first gear 4031 and the second gear 4032 are meshed together. The middle part of the first rotating shaft 4033 is rotatably connected to the clamping support frame 4010. The top end of the first rotating shaft 4033 is connected to a first clamping arm 4041. A third gear 4035 is also fitted on the top end of the first rotating shaft 4033. The bottom end of a second rotating shaft 4034 along its own height direction is rotatably connected to the clamping support frame 4010. The top end of the second rotating shaft 4034 is connected to a second clamping arm 4042. A fourth gear 4036 is also fitted on the top end of the second rotating shaft 4034. The third gear 4035 and the fourth gear 4036 are meshed together. The gear meshing stability is high, and the gear transmission can transmit a large torque, which can provide a high clamping force, ensuring that the first clamping arm 4041 and the second clamping arm 4042 can firmly clamp the sample tube.

[0058] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0059] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0061] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, 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 possible implementation.

[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0064] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A sample tube sealing device, characterized in that, include: Supporting entity; The hot-press sealing mechanism includes a hot-press driving assembly disposed on the supporting body, and an aluminum film support plate and a heating assembly both connected to the hot-press driving assembly. Along the height direction of the hot-press driving assembly, the heating assembly is spaced at the top of the aluminum film support plate. The aluminum film support plate has a through hole for sample tubes to pass through. The projection of the heating assembly on the aluminum film support plate is at least partially located within the through hole. The aluminum film support plate is used to support the aluminum film and cover the through hole. The hot-press driving assembly is used to drive the aluminum film support plate and the heating assembly to perform lifting and lowering movements.

2. The sample tube sealing device according to claim 1, characterized in that, The sample tube sealing device further includes a film cutting mechanism, which includes a film cutting drive assembly, a cutting assembly, and a film cutting and pressing assembly. The film cutting drive assembly is disposed on the support body, the cutting assembly is connected to the film cutting drive assembly, and the film cutting and pressing assembly is elastically connected to the top of the aluminum film support plate. The film cutting and pressing assembly is located outside the through hole. The film cutting drive assembly is used to drive the cutting assembly to descend to abut against the film cutting and pressing assembly, and to make the film cutting and pressing assembly press the aluminum film located on the through hole. At the same time, the cutting assembly descends to cut the aluminum film.

3. The sample tube sealing device according to claim 2, characterized in that, The film cutting and pressing assembly includes an aluminum film pressing block, an aluminum film pressing block guide post, and a pressing block elastic element. The aluminum film pressing block is located at the top of the aluminum film support plate and outside the through hole. The aluminum film pressing block has a pressing block movable hole. The bottom end of the aluminum film pressing block guide post along its own height direction is connected to the aluminum film support plate, and its top end passes through the pressing block movable hole and is movably connected to the aluminum film pressing block. The bottom end of the pressing block elastic element along its own height direction is connected to the aluminum film support plate, and its top end is connected to the aluminum film pressing block. The cutting assembly is used to press down the aluminum film pressing block. And / or, the cutting assembly includes a blade holder, a blade, a film-cutting guide post, and a film-cutting elastic element. The blade holder is connected to the film-cutting drive assembly. The blade is disposed on the blade holder and located outside the film-cutting clamping assembly. The blade holder extends at least partially to the top of the film-cutting clamping assembly and has a film-cutting movable hole. The top end of the film-cutting guide post 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. The film-cutting elastic element is disposed between the blade holder and the film-cutting guide post.

4. The sample tube sealing device according to claim 1, characterized in that, The aluminum film support plate is provided with a limiting member, which is located on both sides of the through hole, and the line connecting the limiting members 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 post. The heating block is connected to the thermo-pressing drive assembly. The heating rod is disposed inside the heating block. The heating block guide post protrudes from the bottom end of the heating block and is located at the top of the aluminum film support plate. A thermo-pressing groove is provided on the side of the heating block guide post facing the through hole. The projection of the heating block guide post on the aluminum film support plate is located inside the through hole.

6. The sample tube sealing device according to claim 1, characterized in that, The sample tube sealing device further 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 support 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 passing through 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 toward the aluminum film support plate or to retract and reset.

7. The sample tube sealing device according to claim 6, characterized in that, Both the first clamping assembly and the second clamping assembly include a clamping driver, a first clamping plate, a second clamping plate, and a clamping transmission component. The first clamping plate has a hollow portion through which the aluminum film passes. The clamping driver is connected to the feeding support frame. One end of the clamping transmission component 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 body of the clamping driver and extends toward the first clamping plate into the hollow portion. The clamping driver is used to drive the first clamping plate to move closer to or away from the second clamping plate to clamp or release the aluminum film located in the hollow portion.

8. The sample tube sealing device according to claim 7, characterized in that, The clamping driver is a clamping rotary motor. The first clamping plate is provided with 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 connected to the clamping guide rail through the clamping bearing. 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 further includes a sample tube clamping mechanism, which includes a clamping support frame, a clamping rotary motor, a gear transmission assembly, and a clamping arm. The clamping support frame is connected to the main body of the clamping rotary motor, and the gear transmission assembly is movably connected to the clamping support frame. The output end of the clamping rotary motor is connected to the gear transmission assembly, and the gear transmission assembly is driven to the clamping arm. The clamping rotary motor is used to drive the gear transmission assembly to drive the clamping arm to close 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 frame is mounted on the top of the clamping rotary motor. The output end of the clamping rotary 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. The first gear and the second gear are meshed together. The middle part of the first rotating shaft is rotatably connected to the clamping support frame. The top end of the first rotating shaft is connected to the first clamping arm. The top end of the first rotating shaft is also fitted with the third gear. The bottom end of the second rotating shaft along its own height direction is rotatably connected to the clamping support frame. The top end of the second rotating shaft is connected to the second clamping arm. The top end of the second rotating shaft is also fitted with the fourth gear. The third gear and the fourth gear are meshed together.

Images