An adaptable automated pipetting workstation with a microplate sealer

By designing a microplate sealing machine adapted to automated pipetting workstations, bidirectional sealing and compression of microplates were achieved, solving the problems of cumbersome and inefficient sealing processes in existing technologies and improving work efficiency.

CN224546510UActive Publication Date: 2026-07-24NINGBO BOCUN BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO BOCUN BIOTECHNOLOGY CO LTD
Filing Date
2025-09-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing microplate sealing process is cumbersome and cannot guarantee bidirectional sealing and tightness, resulting in low work efficiency.

Method used

A microplate sealing machine adapted to automated pipetting workstations was designed, comprising a left sealing unit, a right sealing unit, a tray unit, and a middle pressing unit. It can load two different types of roll film and achieves bidirectional sealing of the microplate through a lifting device and a drive device, ensuring that the film is pressed tightly and sealed.

Benefits of technology

It improves the working efficiency of microplate sealing film, ensures tight sealing of bidirectional film, and is suitable for large-scale promotion and application.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a kind of microplate film sealing machine of adaptive automatic pipetting workstation, different material roll film can be sleeved on left and right film placement roller, different material film sealing in left-right direction can be realized, taking left film sealing unit as an example, when film sealing, microplate is clamped on microplate placement tray, microplate is lifted to film sealing height, then left to the below of left pressure roller, then lift again, so as to abut left pressure roller bottom tin paper film, microplate is sealed by left pressure roller, film is cut after sealing, then microplate is reset, then lift to secondary film sealing height, intermediate pressure roller is moved to the above of microplate, microplate is lifted again, so as to abut intermediate pressure roller, microplate is double-pressed film by intermediate pressure roller, the utility model can load two different material roll films, microplate can be sealed as required, improve work efficiency, and two-way film sealing can be carried out, ensure film sealing pressure tight sealing, improve work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of experimental automation technology, and particularly to the field of automated pipetting workstation technology, specifically referring to a microplate sealing machine that can be adapted to an automated pipetting workstation. Background Technology

[0002] An automated pipetting workstation is a scientific instrument that uses automation technology to perform high-precision liquid handling tasks. Its core functions include gradient dilution, continuous dispensing, and pipetting and mixing. It is widely used in drug development, clinical testing, life sciences and other fields, effectively reducing human error and improving experimental efficiency and data security.

[0003] In automated pipetting workstations, microplate consumables are used extensively during sample testing. Microplates are used to process samples in batches. During transportation and incubation, the microplates must be sealed to ensure the safety and meet experimental requirements.

[0004] The existing microporous plate sealing process involves manually placing the microporous plate on the corresponding sealing device (if it needs to be sealed with tin foil, it is placed on the tin foil sealing device; if it needs to be sealed with pressure-sensitive film, it is placed on the sealing device corresponding to the pressure-sensitive film). This process is cumbersome and can only perform sealing in one direction. It cannot guarantee whether the other two sides of the microporous plate are pressed tightly and sealed.

[0005] Therefore, it is desirable to provide a microplate sealing machine that can be adapted to automated pipetting workstations. This machine can load two different types of film rolls, seal microplates as needed to improve work efficiency, and perform bidirectional sealing to ensure tight and secure sealing, thereby improving work efficiency. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, one objective of this utility model is to provide a microplate sealing machine that can be adapted to automated pipetting workstations. It can load two rolls of film of different materials, seal microplates as needed, improve work efficiency, and perform bidirectional sealing to ensure tight sealing and improve work efficiency. It is suitable for large-scale promotion and application.

[0007] To achieve the above objectives, this utility model provides a microplate sealing machine adaptable to automated pipetting workstations, characterized by comprising a base, a left sealing unit, a right sealing unit, a tray unit, and a middle pressing unit, wherein:

[0008] The left sealing unit includes a left frame, a left film placement roller, a left back film collecting roller, a left roller drive device, a left pressure roller, a left film cutting blade, and a left film cutting drive device. The left frame is vertically arranged and mounted on the base along the left-right direction. The left film placement roller and the left back film collecting roller are both arranged along the front-back direction and spaced apart from each other. The left film placement roller is rotatably mounted on the left frame around the front-back direction. The left roller drive device is mounted on the left frame and connected to the left back film collecting roller to drive the left back film collecting roller. The collecting roller rotates around the front-back direction. The left pressure roller is arranged along the front-back direction and located in the left frame. The front and rear ends of the left pressure roller are rotatably connected to the left frame around the front-back direction. The left cutting blade is arranged along the front-back direction and inclined to the lower right in the direction from left to right. The left cutting drive device is installed on the left frame and connected to the upper left end of the left cutting blade to drive the left cutting blade to move back and forth. The lower right end of the left cutting blade is the cutting end and is located to the left of the left pressure roller and adjacent to the left pressure roller.

[0009] The right sealing unit includes a right frame, a right film placement roller, a right back film collecting roller, a right roller drive device, a right pressure roller, a right film cutting blade, and a right film cutting drive device. The right frame is vertically arranged on the base along the left-right direction and located to the right of the left frame. The right back film collecting roller and the right film placement roller are both arranged along the front-back direction and spaced apart from each other. The right film placement roller is rotatably mounted on the right frame around the front-back direction. The right roller drive device is mounted on the right frame and connected to the right back film collecting roller for... The right back film collecting roller is driven to rotate around the front-back direction. The right pressure roller is arranged along the front-back direction and located in the right frame. The front and rear ends of the right pressure roller are rotatably connected to the right frame around the front-back direction. The right film cutting blade is arranged along the front-back direction and inclined to the lower left in the direction from right to left. The right film cutting drive device is installed on the right frame and connected to the upper right end of the right film cutting blade to drive the right film cutting blade to move back and forth. The lower left end of the right film cutting blade is the cutting end and is located to the right of the right pressure roller and adjacent to the right pressure roller.

[0010] The tray unit includes a movable frame, a lifting device, a microporous plate placement tray, and a tray driving device. The movable frame is vertically arranged and positioned along the left-right direction, abutting against the base. The left and right ends of the movable frame are respectively inserted into the left and right frames along the left-right direction and are vertically movable relative to the left and right frames. The lifting device is respectively installed on the base, the left frame, and the right frame and connected to the movable frame to drive the movable frame to move up and down. The microporous plate placement tray is horizontally arranged and positioned along the left-right direction, and is movable left and right on the movable frame. The tray driving device is installed on the movable frame and connected to the microporous plate placement tray to drive the microporous plate placement tray to move left and right. The top surface of the microporous plate placement tray is provided with a microporous plate locking position.

[0011] The intermediate pressing unit includes a pressing frame, a left moving plate, a right moving plate, a connecting plate, an intermediate pressure roller, and an intermediate pressure roller driving device. The pressing frame is vertically arranged on the base along the front-back direction. The pressing frame is located between the left and right frames and behind the middle of the movable frame. The left and right moving plates are both vertically arranged along the front-back direction and spaced apart from each other. The left and right moving plates are movably mounted on the pressing frame. The connecting plate is horizontally arranged along the front-back direction. The left and right sides of the connecting plate are respectively mounted on the left and right moving plates. The intermediate pressure roller is arranged along the left-right direction and located between the left and right moving plates, and is rotatably connected to the left and right moving plates respectively around the left-right direction. The intermediate pressure roller is located behind the position above the microporous plate placement tray. The intermediate pressure roller driving device is located in the pressing frame and mounted on the base, and is connected to the connecting plate to drive the connecting plate to move back and forth.

[0012] Preferably, the left sealing unit further includes a first left rotating roller and a second left rotating roller. The first left rotating roller is arranged along the front-back direction and rotatably arranged in the left frame around the front-back direction and located above the left pressure roller. The second left rotating roller is arranged along the front-back direction and rotatably arranged in the left frame around the front-back direction and located to the upper right of the left pressure roller. The right sealing unit further includes a first right rotating roller and a second right rotating roller. The first right rotating roller is arranged along the front-back direction and rotatably arranged in the right frame around the front-back direction and located above the right pressure roller. The second right rotating roller is arranged along the front-back direction and rotatably arranged in the right frame around the front-back direction and located to the upper left of the right pressure roller.

[0013] Preferably, the left sealing unit further includes a left front fixing block, a left rear fixing block, a left front elastic element, and a left rear elastic element. The left front fixing block and the left rear fixing block are both vertically arranged and arranged along the left-right direction, and are spaced apart from each other. The left front fixing block and the left rear fixing block are both located in the left frame and are vertically movable relative to the left frame. The left pressure roller is located between the left front fixing block and the left rear fixing block and is rotatably connected to the left front fixing block and the left rear fixing block respectively around the front-back direction. The left front elastic element and the left rear elastic element are both vertically arranged and spaced apart from each other. The left front elastic element is located between the left frame and the left front fixing block and is connected to the left frame and the left front fixing block respectively. The left rear elastic element is located between the left frame and the left rear fixing block and is connected to the left frame and the left rear fixing block respectively.

[0014] The right sealing unit further includes a right front fixing block, a right rear fixing block, a right front elastic element, and a right rear elastic element. The right front fixing block and the right rear fixing block are both vertically arranged and along the left-right direction, and are spaced apart from each other. The right front fixing block and the right rear fixing block are both located in the right frame and are vertically movable relative to the right frame. The right pressure roller is located between the right front fixing block and the right rear fixing block and is rotatably connected to the right front fixing block and the right rear fixing block respectively around the left-right direction. The right front elastic element and the right rear elastic element are both vertically arranged and spaced apart from each other. The right front elastic element is located between the right frame and the right front fixing block and is connected to the right frame and the right front fixing block respectively. The right rear elastic element is located between the right frame and the right rear fixing block and is connected to the right frame and the right rear fixing block respectively.

[0015] More preferably, the left sealing unit further includes a left pair of rollers, which includes a first left roller and a second left roller. The first left roller and the second left roller are both arranged along the front-rear direction and spaced apart from each other on the left and right sides. The first left roller and the second left roller are both located between the left front fixing block and the left rear fixing block and are rotatably connected to the left front fixing block and the left rear fixing block respectively around the front-rear direction. The first left roller is located to the right of the left pressure roller. The right sealing unit further includes a right pair of rollers, which includes a first right roller and a second right roller. The second right roller and the first right roller are both arranged along the front-rear direction and spaced apart from each other on the left and right sides. The first right roller and the second right roller are both located between the right front fixing block and the right rear fixing block and are rotatably connected to the right front fixing block and the right rear fixing block respectively around the front-rear direction. The first right roller is located to the left of the right pressure roller.

[0016] More preferably, the left sealing unit further includes a left guide rod, which is arranged along the front-rear direction and is respectively inserted into the left front fixing block and the left rear fixing block along the front-rear direction and is located above the left pressure roller. The front end and the rear end of the left guide rod are both vertically movable in the left frame. The right sealing unit further includes a right guide rod, which is arranged along the front-rear direction and is respectively inserted into the right front fixing block and the right rear fixing block along the front-rear direction and is located above the right pressure roller. The front end and the rear end of the right guide rod are both vertically movable in the right frame.

[0017] Preferably, the left-cutting film driving device includes a left fixed plate, a left driven wheel, a left driving wheel, a left synchronous belt, and a left driving component. The left fixed plate is horizontally arranged and positioned in the left frame along the front-rear direction. The rear end of the left fixed plate passes through the left frame along the front-rear direction and is exposed behind the left frame. The upper left end of the left-cutting film blade is located on the right side of the left fixed plate and is movably connected to the left fixed plate. The left driven wheel and the left driving wheel are both horizontally arranged and spaced apart from each other, and are respectively horizontally rotatably mounted on the front end and the rear end of the left fixed plate. The left driving component is installed on the rear end of the left fixed plate and connected to the left driving wheel to drive the left driving wheel to rotate horizontally. The left synchronous belt is horizontally arranged and positioned along the front-rear direction and passes through the left frame along the front-rear direction. The front end and the rear end of the left synchronous belt are respectively sleeved on the left driven wheel and the left driving wheel. The right side of the left synchronous belt is connected to the upper left end of the left-cutting film blade.

[0018] The right-cutting drive device includes a right fixed plate, a right driven wheel, a right driving wheel, a right synchronous belt, and a right drive component. The right fixed plate is horizontally arranged in the right frame along the front-back direction. The rear end of the right fixed plate passes through the right frame along the front-back direction and is exposed behind the right frame. The upper right end of the right-cutting blade is located to the left of the right fixed plate and is movably connected to the right fixed plate. The right driven wheel and the right driving wheel are both horizontally arranged and spaced apart from each other, and are respectively horizontally rotatably arranged on the front end and the rear end of the right fixed plate. The right drive component is installed at the rear end of the right fixed plate and connected to the right driving wheel to drive the right driving wheel to rotate horizontally. The right synchronous belt is horizontally arranged along the front-back direction and passes through the right frame along the front-back direction. The front end and the rear end of the right synchronous belt are respectively sleeved on the right driven wheel and the right driving wheel. The left side of the right synchronous belt is connected to the upper right end of the right-cutting blade.

[0019] Preferably, the lifting device includes a left gear shaft, a right gear shaft, a left idler gear, a right idler gear, a drive wheel, a lifting drive component, a left auxiliary wheel, a right auxiliary wheel, a lifting timing belt, a left gear, a left rack, a right gear, and a right rack, wherein:

[0020] The left and right gear shafts are both arranged along the front-rear direction and spaced apart from each other. The left and right gear shafts are rotatably mounted in the left and right frames respectively, with the rear ends of the left and right gear shafts exposed behind the left and right frames respectively. The left and right idler gears are both vertically arranged along the left-right direction and spaced apart from each other. The left and right idler gears are located behind the left and right frames respectively and are respectively fitted onto the rear ends of the left and right gear shafts. The drive wheel is vertically arranged along the left-right direction and located below the middle position between the left and right idler gears. The lifting drive... The component is mounted on the base and connected to the drive wheel to drive the drive wheel to rotate around the front-back direction. The left auxiliary wheel and the right auxiliary wheel are both vertically arranged and along the left-right direction, and are spaced apart from each other. The left auxiliary wheel and the right auxiliary wheel are both located between the left idler wheel and the right idler wheel, and are respectively located above the left and right of the drive wheel. The lifting synchronous belt is vertically arranged and along the left-right direction. The left end and the right end of the lifting synchronous belt are respectively sleeved on the left idler wheel and the right idler wheel. The middle part of the lower belt of the lifting synchronous belt is V-shaped and passes around the right auxiliary wheel from the upper left, then passes around the bottom of the drive wheel, and then passes around the left auxiliary wheel from the upper right.

[0021] The left rack is vertically arranged along the front-rear direction and facing to the right. The left rack is located at the left end of the movable frame. The left gear is vertically arranged along the left-right direction. The left gear is sleeved on the left gear shaft and located to the right of the left rack and meshes with the left rack. The right rack is vertically arranged along the front-rear direction and facing to the right. The right rack is located at the right end of the movable frame. The right gear is vertically arranged along the left-right direction. The right gear is sleeved on the right gear shaft and located to the right of the right rack and meshes with the right rack.

[0022] Preferably, the pallet driving device includes a left rotating wheel, a right rotating wheel, a transmission timing belt, and a pallet driving component. The left and right rotating wheels are both horizontally arranged and spaced apart from each other, and are both horizontally rotatable on the movable frame. The transmission timing belt is horizontally arranged along the left-right direction, with its left and right ends respectively fitted onto the left and right rotating wheels. The pallet driving component is mounted on the movable frame and connected to the left rotating wheel to drive it to rotate horizontally. The front portion of the transmission timing belt is connected to the microporous plate for placing the pallet.

[0023] Preferably, the intermediate pressure roller driving device includes a transmission rack, a transmission gear, and an intermediate pressure roller driving component. The transmission rack is vertically arranged along the front-to-back direction and facing left. The transmission rack is located below and connected to the connecting plate. The transmission gear is horizontally arranged and located to the left of the transmission rack and meshes with the transmission rack. The intermediate pressure roller driving component is located in the film pressing frame and mounted on the base, and is connected to the transmission gear to drive the transmission gear to rotate horizontally.

[0024] Preferably, the intermediate pressing unit further includes a left fixing block, a right fixing block, a left elastic element, and a right elastic element. The left fixing block and the right fixing block are both vertically arranged and arranged along the front-back direction, and are spaced apart from each other. The left fixing block and the right fixing block are both located between the left moving plate and the right moving plate and are vertically movably connected to the left moving plate and the right moving plate, respectively. The left elastic element and the right elastic element are both vertically arranged. The left elastic element is located between the left fixing block and the connecting plate and is connected to the left fixing block and the connecting plate, respectively. The right elastic element is located between the right fixing block and the connecting plate and is connected to the right fixing block and the connecting plate, respectively.

[0025] The main beneficial effects of this utility model are as follows:

[0026] This utility model relates to a microplate sealing machine adapted to automated pipetting workstations. Different materials of film can be fitted onto the left and right film placement rollers, enabling sealing with different materials in the left-right direction. Taking the left sealing unit as an example, during sealing, the microplate to be sealed is placed on the microplate placement tray. The microplate is raised and lowered by a lifting device and moved left and right by a tray drive device, raising it to the sealing height. Then it moves to the left until the right edge of the microplate is directly below the left pressure roller. The microplate is then raised again until it touches the foil film at the bottom of the left pressure roller. At this point, the microplate moves to the right while simultaneously winding the back film of the foil film, causing the left pressure roller to rotate counterclockwise in the front-back direction. The pressure roller seals the microperforated plate. After sealing, the left cutting blade is driven by the left cutting drive device to cut the film. After cutting, the microperforated plate is moved to the starting position and then raised to the secondary sealing height. The intermediate pressure roller is driven forward by the intermediate pressure roller drive device to directly above the rear edge of the microperforated plate. The microperforated plate is then raised until it touches the intermediate pressure roller. The intermediate pressure roller is driven forward by the intermediate pressure roller drive device to perform a longitudinal sealing action on the microperforated plate, completing the secondary sealing. Therefore, it can load two different types of film rolls, can seal the microperforated plate as needed, improve work efficiency, and can perform bidirectional sealing to ensure tight sealing, further improving work efficiency and making it suitable for large-scale application.

[0027] These and other objects, features and advantages of this utility model will be fully apparent from the following detailed description and drawings, and can be achieved by the means, devices and combinations thereof specifically pointed out in the description of the utility model. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of a microplate sealing machine adapted to an automated pipetting workstation, comprising a foil film, a pressure-sensitive film, and a microplate. Figure 1 .

[0029] Figure 2 yes Figure 1 The specific embodiment shown is a three-dimensional schematic diagram of a foil film, a pressure-sensitive film, and a microporous plate. Figure 2 .

[0030] Figure 3 yes Figure 1 The diagram shown is a perspective view of the left sealing unit of the specific embodiment without the left cutting blade and the left cutting drive device.

[0031] Figure 4 yes Figure 1 A perspective view of the components of the left back film collecting roller, the left roller drive device, the second left mounting base and the first left rotating roller of the left sealing film unit in the specific embodiment shown.

[0032] Figure 5 yes Figure 1 The diagram shows a perspective view of the components of the left sealing unit, including the left pressure roller, left front fixing block, left rear fixing block, left front elastic element, left rear elastic element, left guide rod, and second left rotating roller, in a specific embodiment.

[0033] Figure 6 yes Figure 1 A perspective view of the components of the left-cutting blade and the left-cutting drive device of the left sealing unit in the specific embodiment shown.

[0034] Figure 7 yes Figure 1 The diagram shown is a perspective view of the right sealing unit without the right cutting blade and the right cutting drive device in the specific embodiment.

[0035] Figure 8 yes Figure 1 A perspective view of the components of the right back film collecting roller, the right roller drive device, the second right mounting base and the first right rotating roller of the right sealing unit in the specific embodiment shown.

[0036] Figure 9 yes Figure 1 The diagram shows a perspective view of the right pressure roller, right front fixing block, right rear fixing block, right front elastic element, right rear elastic element, right guide rod, and second right rotating roller assembly of the right sealing unit in the specific embodiment shown.

[0037] Figure 10 yes Figure 1 A perspective view of the components of the right film cutting blade and the right film cutting drive device of the right sealing unit in the specific embodiment shown.

[0038] Figure 11 yes Figure 1 The specific embodiment shown is a three-dimensional schematic diagram with the intermediate pressing unit removed.

[0039] Figure 12 yes Figure 1 The specific embodiment shown is a partial three-dimensional diagram with the left and right sealing units removed. Figure 1 .

[0040] Figure 13 yes Figure 1 The specific embodiment shown is a partial three-dimensional diagram with the left and right sealing units removed. Figure 2 .

[0041] Figure 14 yes Figure 1 The diagram shows a perspective view of the tray unit and base components of a specific embodiment, where the lifting device is not shown.

[0042] Figure 15 yes Figure 1A three-dimensional schematic diagram of the intermediate pressing unit of a specific embodiment is shown.

[0043] Figure 16 yes Figure 1 The diagram shows a three-dimensional representation of the intermediate pressing unit without the connecting plate in a specific embodiment.

[0044] Figure 17 yes Figure 1 The diagram shows a perspective view of the intermediate pressure roller, left fixed block, right fixed block, left elastic element, right elastic element and intermediate guide rod of the intermediate pressing unit in the specific embodiment shown.

[0045] (Symbol Explanation)

[0046] 1. Base;

[0047] 2 Left sealing unit; 201 Left frame; 202 Left film placement roller; 203 Left back film collecting roller; 204 Left roller drive device; 205 Left pressure roller; 206 Left film cutting blade; 207 Left film cutting drive device; 208 First left mounting base; 209 Second left mounting base; 210 First left rotating roller; 211 Second left rotating roller; 212 Left front fixing block; 213 Left rear fixing block; 214 Left front elastic element; 215 Left rear elastic element; 216 Left roller pair; 217 First left roller; 218 Second left roller; 219 Left guide rod; 220 Left fixing plate; 221 Left driven wheel; 222 Left driving wheel; 223 Left timing belt; 224 Left drive component; 225 Left guide rail; 226 Left slider;

[0048] 3 Right sealing unit; 301 Right frame; 302 Right film placement roller; 303 Right back film collecting roller; 304 Right roller drive device; 305 Right pressure roller; 306 Right film cutting blade; 307 Right film cutting drive device; 308 First right mounting base; 309 Second right mounting base; 310 First right rotating roller; 311 Second right rotating roller; 312 Right front fixing block; 313 Right rear fixing block; 314 Right front elastic element; 315 Right rear elastic element; 316 Right roller pair; 317 First right roller; 318 Second right roller; 319 Right guide rod; 320 Right fixing plate; 321 Right driven wheel; 322 Right driving wheel; 323 Right timing belt; 324 Right drive component; 325 Right guide rail; 326 Right slider;

[0049] 4. Pallet Unit; 401. Movable Frame; 402. Lifting Device; 403. Microplate Placement Pallet; 404. Pallet Drive Device; 405. Left Gear Shaft; 406. Right Gear Shaft; 407. Left Idler Gear; 408. Right Idler Gear; 409. Drive Wheel; 410. Lifting Drive Component; 411. Left Auxiliary Wheel; 412. Right Auxiliary Wheel; 413. Lifting Synchronous Belt; 414. Left Gear; 415. Left Rack; 416. Right Gear; 417. Right Rack; 418. Front Guide Rail; 419. Rear Guide Rail; 420. Left Rotating Wheel; 421. Right Rotating Wheel; 422. Transmission Synchronous Belt; 423. Pallet Drive Component;

[0050] 5. Intermediate film pressing unit; 501 Film pressing frame; 502 Left moving plate; 503 Right moving plate; 504 Connecting plate; 505 Intermediate pressure roller; 506 Intermediate pressure roller drive device; 507 Transmission rack; 508 Transmission gear; 509 Intermediate pressure roller drive component; 510 Left fixed block; 511 Right fixed block; 512 Left elastic element; 513 Right elastic element; 514 Intermediate guide rod;

[0051] 6. Tin foil film; 7. Pressure-sensitive film; 8. Waste container; 9. Microporous plate. Detailed Implementation

[0052] In order to better understand the technical content of this utility model, the following embodiments are provided for detailed description.

[0053] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0054] Please see Figures 1 to 17 As shown, in a specific embodiment of this utility model, the microplate sealing machine of this utility model, which is compatible with automated pipetting workstations, includes a base 1, a left sealing unit 2, a right sealing unit 3, a tray unit 4, and a middle pressing unit 5, wherein:

[0055] The left sealing unit 2 includes a left frame 201, a left film placement roller 202, a left back film collecting roller 203, a left roller drive 204, a left pressure roller 205, a left film cutting blade 206, and a left film cutting drive 207. The left frame 201 is vertically arranged and mounted on the base 1 along the left-right direction. The left film placement roller 202 and the left back film collecting roller 203 are both arranged along the front-back direction and spaced apart from each other. The left film placement roller 202 is rotatably mounted on the left frame 201 around the front-back direction. The left roller drive 204 is mounted on the left frame 201 and connected to the left back film collecting roller 203 for driving the left film. The left back film collecting roller 203 rotates around the front-back direction. The left pressure roller 205 is arranged along the front-back direction and located in the left frame 201. The front and rear ends of the left pressure roller 205 are rotatably connected to the left frame 201 around the front-back direction. The left film cutting blade 206 is arranged along the front-back direction and inclined to the lower right in the direction from left to right. The left film cutting drive device 207 is installed on the left frame 201 and connected to the upper left end of the left film cutting blade 206 to drive the left film cutting blade 206 to move back and forth. The lower right end of the left film cutting blade 206 is the cutting end and is located to the left of the left pressure roller 205 and adjacent to the left pressure roller 205.

[0056] The right sealing unit 3 includes a right frame 301, a right film placement roller 302, a right back film collecting roller 303, a right roller drive device 304, a right pressure roller 305, a right film cutting blade 306, and a right film cutting drive device 307. The right frame 301 is vertically arranged on the base 1 along the left-right direction and located to the right of the left frame 201. The right back film collecting roller 303 and the right film placement roller 302 are both arranged along the front-back direction and spaced apart from each other. The right film placement roller 302 is rotatably mounted on the right frame 301 around the front-back direction. The right roller drive device 304 is mounted on the right frame 301 and connected to the right back film collecting roller. 303 is used to drive the right back film collecting roller 303 to rotate around the front-back direction. The right pressure roller 305 is arranged along the front-back direction and located in the right frame 301. The front end and rear end of the right pressure roller 305 are rotatably connected to the right frame 301 around the front-back direction. The right film cutting blade 306 is arranged along the front-back direction and inclined to the lower left in the direction from right to left. The right film cutting drive device 307 is installed on the right frame 301 and connected to the upper right end of the right film cutting blade 306 to drive the right film cutting blade 306 to move back and forth. The lower left end of the right film cutting blade 306 is the cutting end and is located to the right of the right pressure roller 305 and adjacent to the right pressure roller 305.

[0057] The tray unit 4 includes a movable frame 401, a lifting device 402, a microporous plate placement tray 403, and a tray driving device 404. The movable frame 401 is vertically arranged along the left-right direction and abuts against the base 1. The left and right ends of the movable frame 401 are respectively inserted into the left frame 201 and the right frame 301 along the left-right direction and are vertically movable relative to the left frame 201 and the right frame 301. The lifting device 402 is respectively installed on the base 1 and the left frame. The movable frame 401 is connected to the right frame 301 and 201 to drive the movable frame 401 to move up and down. The microporous plate placement tray 403 is horizontally arranged and arranged along the left and right direction and is movable left and right on the movable frame 401. The tray driving device 404 is installed on the movable frame 401 and connected to the microporous plate placement tray 403 to drive the microporous plate placement tray 403 to move left and right. The top surface of the microporous plate placement tray 403 is provided with a microporous plate locking position (not shown in the figure).

[0058] The intermediate pressing unit 5 includes a pressing frame 501, a left moving plate 502, a right moving plate 503, a connecting plate 504, an intermediate pressure roller 505, and an intermediate pressure roller driving device 506. The pressing frame 501 is vertically arranged on the base 1 along the front-back direction. The pressing frame 501 is located between the left frame 201 and the right frame 301 and is located behind the middle of the movable frame 401. The left moving plate 502 and the right moving plate 503 are both vertically arranged along the front-back direction and are spaced apart from each other. The left moving plate 502 and the right moving plate 503 are both movable on the pressing frame 501. The connecting plate... The connecting plate 504 is horizontally positioned along the front-back direction. The left and right sides of the connecting plate 504 are respectively positioned on the left moving plate 502 and the right moving plate 503. The intermediate pressure roller 505 is positioned along the left-right direction and located between the left moving plate 502 and the right moving plate 503, and is rotatably connected to the left moving plate 502 and the right moving plate 503 respectively around the left-right direction. The intermediate pressure roller 505 is located behind the microporous plate placement tray 403 above it. The intermediate pressure roller driving device 506 is located in the film pressing frame 501 and is installed on the base 1 and connected to the connecting plate 504 to drive the connecting plate 504 to move back and forth.

[0059] The base 1 can have any suitable shape, please refer to Figures 1-2 and Figures 11-14 As shown, in a specific embodiment of this utility model, the base 1 is a base plate, which is horizontally arranged and arranged along the left and right directions.

[0060] The left roller drive device 204 and the right roller drive device 304 can be any suitable roller drive device. In a specific embodiment of this utility model, both the left roller drive device 204 and the right roller drive device 304 are drive motors.

[0061] The left film placement roller 202 is rotatably mounted on the left frame 201 about the front-back direction, and the left roller drive device 204 is mounted on the left frame 201. The right film placement roller 302 is rotatably mounted on the right frame 301 about the front-back direction, and the right roller drive device 304 is mounted on the right frame 301. Any suitable structure can be used; please refer to [link / reference]. Figures 1-4 , Figures 7-8 and Figure 11 As shown, in a specific embodiment of this utility model, the left sealing unit 2 further includes a first left mounting base 208 and a second left mounting base 209. The first left mounting base 208 and the second left mounting base 209 are arranged on the left frame 201 with left and right sides spaced apart. The left film placement roller 202 is rotatably arranged on the first left mounting base 208 around the front-back direction. The left roller drive device 204 is mounted on the second left mounting base 209. The right sealing unit 3 further includes a first right mounting base 308 and a second right mounting base 309. The second right mounting base 309 and the first right mounting base 308 are arranged on the right frame 301 with left and right sides spaced apart. The right film placement roller 302 is rotatably arranged on the first right mounting base 308 around the front-back direction. The right roller drive device 304 is mounted on the second right mounting base 309.

[0062] The first left mounting base 208, the second left mounting base 209, the first right mounting base 308, and the second right mounting base 309 can have any suitable shape; please refer to [reference needed]. Figures 1-4 , Figures 7-8 and Figure 11 As shown, in a specific embodiment of this utility model, the first left mounting base 208, the second left mounting base 209, the first right mounting base 308, and the second right mounting base 309 are all L-shaped mounting plates.

[0063] The left sealing unit 2 and the right sealing unit 3 may also include any other suitable configurations; please refer to [link / reference]. Figure 1 , Figures 3-5 , Figures 7-9 and Figure 11As shown, in a specific embodiment of this utility model, the left sealing unit 2 further includes a first left rotating roller 210 and a second left rotating roller 211. The first left rotating roller 210 is arranged along the front-back direction and rotatably arranged in the left frame 201 around the front-back direction and located above the left pressure roller 205. The second left rotating roller 211 is arranged along the front-back direction and rotatably arranged in the left frame 201 around the front-back direction and located to the upper right of the left pressure roller 205. The right sealing unit 3 further includes a first right rotating roller 310 and a second right rotating roller 311. The first right rotating roller 310 is arranged along the front-back direction and rotatably arranged in the right frame 301 around the front-back direction and located above the right pressure roller 305. The second right rotating roller 311 is arranged along the front-back direction and rotatably arranged in the right frame 301 around the front-back direction and located to the upper left of the right pressure roller 305. When the left sealing unit 2 further includes a first left mounting base 208 and a second left mounting base 209, and the right sealing unit 3 further includes a first right mounting base 308 and a second right mounting base 309, the first left rotating roller 210 is rotatably disposed on the right side of the second left mounting base 209 about the front-back direction, and the first right rotating roller 310 is rotatably disposed on the left side of the second right mounting base 309 about the front-back direction.

[0064] With the above configuration, when loading the film roll, after the film roll is fitted onto the left film roll placement roller 202, the free end of the film roll is inclined downwards and to the right from the left film roll placement roller 202, then it is wrapped around the first left rotating roller 210 from the upper right, and then inclined downwards and to the left from the right. Next, it is wrapped around the bottom of the left pressure roller 205 from the left side, and then the back film of the free end of the film roll is inclined upwards and to the right from the left, and then wrapped around the second left rotating roller 211 from the lower right, and then wound onto the left back film collecting roller 203. The film is placed on the waste cylinder 8. After the film roll is fitted onto the right film placement roller 302, the free end of the film roll is inclined downwards and to the left from the right film placement roller 302. Then, it is wrapped around the first right rotating roller 310 from the upper left, and then inclined downwards and to the right from the left. Next, it is wrapped around the bottom of the right pressure roller 305 from the right side. Then, the back film of the free end of the film roll is inclined upwards and to the left from the right, and then wrapped around the second right rotating roller 311 from the lower left. Finally, it is wound onto the waste cylinder 8 fitted onto the right back film collection roller 303. The first left rotating roller 210 and the first right rotating roller 310 can effectively prevent scratches from occurring when the film roll moves at this point during the sealing process.

[0065] The left sealing unit 2 and the right sealing unit 3 may also include any other suitable configurations; please refer to [link / reference]. Figure 3 , Figure 5 , Figure 7 and Figure 9 As shown, in a specific embodiment of this utility model, the left sealing unit 2 further includes a left front fixing block 212, a left rear fixing block 213, a left front elastic element 214, and a left rear elastic element 215. The left front fixing block 212 and the left rear fixing block 213 are both vertically arranged and arranged along the left-right direction, and are spaced apart from each other. The left front fixing block 212 and the left rear fixing block 213 are both located in the left frame 201 and are vertically movable relative to the left frame 201. The left pressure roller 205 is located between the left front fixing block 212 and the left rear fixing block 215. The left front fixing block 212 and the left rear fixing block 213 are rotatably connected between each other and around the front and rear directions. The left front elastic member 214 and the left rear elastic member 215 are both vertically arranged and spaced apart from each other. The left front elastic member 214 is located between the left frame 201 and the left front fixing block 212 and is connected to the left frame 201 and the left front fixing block 212 respectively. The left rear elastic member 215 is located between the left frame 201 and the left rear fixing block 213 and is connected to the left frame 201 and the left rear fixing block 213 respectively.

[0066] The right sealing unit 3 further includes a right front fixing block 312, a right rear fixing block 313, a right front elastic element 314, and a right rear elastic element 315. The right front fixing block 312 and the right rear fixing block 313 are both vertically arranged and along the left-right direction, spaced apart from each other. Both the right front fixing block 312 and the right rear fixing block 313 are located within the right frame 301 and are vertically movable relative to the right frame 301. The right pressure roller 305 is located between the right front fixing block 312 and the right rear fixing block 313 and rotates around them. The front right fixing block 312 and the rear right fixing block 313 are rotatably connected in the front-rear direction. The front right elastic member 314 and the rear right elastic member 315 are both vertically arranged and spaced apart from each other in the front and rear directions. The front right elastic member 314 is located between the right frame 301 and the front right fixing block 312 and is connected to the right frame 301 and the front right fixing block 312 respectively. The rear right elastic member 315 is located between the right frame 301 and the rear right fixing block 313 and is connected to the right frame 301 and the rear right fixing block 313 respectively.

[0067] With the above configuration, when the microperforated plate 9 abuts against the bottom of the left pressure roller 205, pressure is applied to the microperforated plate 9 by the right front elastic member 314 and the right rear elastic member 315. The microperforated plate 9 can be raised and lowered by the lifting device 402 to adjust the film pressing elasticity.

[0068] The left front elastic element 214, the left rear elastic element 215, the right front elastic element 314, and the right rear elastic element 315 can be any suitable elastic element. Please refer to [link to relevant documentation]. Figure 5 and Figure 9 As shown, in a specific embodiment of this utility model, the left front elastic member 214, the left rear elastic member 215, the right front elastic member 314, and the right rear elastic member 315 are all springs.

[0069] The left sealing unit 2 and the right sealing unit 3 may also include any other suitable configurations; please refer to [link / reference]. Figure 5 and Figure 9 As shown, in a specific embodiment of this utility model, the left sealing unit 2 further includes a left roller 216, which includes a first left roller 217 and a second left roller 218. The first left roller 217 and the second left roller 218 are both arranged along the front-rear direction and spaced apart from each other. The first left roller 217 and the second left roller 218 are both located between the left front fixing block 212 and the left rear fixing block 213, and are rotatably connected to the left front fixing block 212 and the left rear fixing block 213 respectively around the front-rear direction. The first left roller 217 is located on the left... The right side of the pressure roller 205; the right sealing unit 3 also includes a right counter roller 316, the right counter roller 316 including a first right roller 317 and a second right roller 318, the second right roller 318 and the first right roller 317 are both arranged along the front-rear direction and spaced apart from each other to the left and right, the first right roller 317 and the second right roller 318 are both located between the right front fixing block 312 and the right rear fixing block 313 and are rotatably connected to the right front fixing block 312 and the right rear fixing block 313 respectively around the front-rear direction, the first right roller 317 is located to the left of the right pressure roller 305. When the left sealing unit 2 also includes a first left rotating roller 210 and a second left rotating roller 211 and the right sealing unit 3 also includes a first right rotating roller 310 and a second right rotating roller 311, the second left roller 218 is located to the lower left of the second left rotating roller 211, and the second right roller 318 is located to the lower right of the second right rotating roller 311.

[0070] With the above configuration, when loading the film roll, the free end of the film roll is wound from left to right around the bottom of the left pressure roller 205, and then the back film of the free end of the film roll is tilted upwards and to the right from left to right. It then winds around the first left roller 217 from the upper left, passes between the first left roller 217 and the second left roller 218, then winds around the bottom of the second left roller 218 from left to right, and then tilts upwards and to the right from left to right, winding around the bottom of the second left roller 218 from the lower right. The second left-turning roller 211: After the film roll is wound from the right side of the right pressure roller 305 from right to left, passing through the bottom of the right pressure roller 305, the back film at the free end of the film roll is tilted upward and to the left in the direction from right to left, then it is wound from the upper right of the first right roller 317, passing through the first right roller 317 and the second right roller 318, then wound from right to left through the bottom of the second right roller 318, and then tilted upward and to the left in the direction from right to left, and then wound from the lower left of the second right-turning roller 311.

[0071] The first left roller 217, the second left roller 218, the first right roller 317 and the second right roller 318 can be rollers made of any suitable material. In a specific embodiment of this utility model, the first left roller 217, the second left roller 218, the first right roller 317 and the second right roller 318 are all rubber rollers.

[0072] The left sealing unit 2 and the right sealing unit 3 may also include any other suitable configurations; please refer to [link / reference]. Figure 5 and Figure 9 As shown, in a specific embodiment of this utility model, the left sealing unit 2 further includes a left guide rod 219. The left guide rod 219 is arranged along the front-rear direction and is respectively inserted into the left front fixing block 212 and the left rear fixing block 213 along the front-rear direction and is located above the left pressure roller 205. The front end and rear end of the left guide rod 219 are both vertically movable in the left frame 201. The right sealing unit 3 further includes a right guide rod 319. The right guide rod 319 is arranged along the front-rear direction and is respectively inserted into the right front fixing block 312 and the right rear fixing block 313 along the front-rear direction and is located above the right pressure roller 305. The front end and rear end of the right guide rod 319 are both vertically movable in the right frame 301. With the above configuration, the left guide rod 219 and the right guide rod 319 guide the vertical movement of the left front fixing block 212 and the left rear fixing block 213 relative to the left frame 201, respectively, and guide the vertical movement of the right front fixing block 312 and the right rear fixing block 313 relative to the right frame 301.

[0073] The left-cutting film driving device 207 and the right-cutting film driving device 307 can have any suitable configuration; please refer to [link / reference]. Figure 2 , Figure 6 and Figure 10 As shown, in a specific embodiment of this utility model, the left-cutting film driving device 207 includes a left fixed plate 220, a left driven wheel 221, a left driving wheel 222, a left synchronous belt 223, and a left driving component 224. The left fixed plate 220 is horizontally arranged and disposed in the left frame 201 along the front-back direction. The rear end of the left fixed plate 220 passes through the left frame 201 along the front-back direction and is exposed behind the left frame 201. The upper left end of the left-cutting film blade 206 is located to the right of the left fixed plate 220 and is movably connected to the left fixed plate 220. The left driven wheel 221 and the left driving wheel 222 are both horizontal. The left drive component 224 is installed at the rear end of the left fixed plate 220 and connected to the left drive wheel 222 to drive the left drive wheel 222 to rotate horizontally. The left synchronous belt 223 is horizontally arranged along the front-rear direction and passes through the left frame 201 along the front-rear direction. The front end and rear end of the left synchronous belt 223 are respectively sleeved on the left driven wheel 221 and the left drive wheel 222. The right side of the left synchronous belt 223 is connected to the upper left end of the left cutting blade 206.

[0074] The right film-cutting drive device 307 includes a right fixed plate 320, a right driven wheel 321, a right driving wheel 322, a right synchronous belt 323, and a right drive component 324. The right fixed plate 320 is horizontally arranged and positioned in the right frame 301 along the front-back direction. The rear end of the right fixed plate 320 passes through the right frame 301 along the front-back direction and is exposed behind the right frame 301. The upper right end of the right film-cutting blade 306 is located to the left of the right fixed plate 320 and is movably connected to the right fixed plate 320. The right driven wheel 321 and the right driving wheel 322 are both horizontally arranged and spaced apart from each other. The right drive component 324 is mounted on the rear end of the right fixed plate 320 and is horizontally rotatably mounted on the front end and rear end of the right fixed plate 320, respectively. It is connected to the right drive wheel 322 to drive the right drive wheel 322 to rotate horizontally. The right synchronous belt 323 is horizontally arranged along the front-rear direction and passes through the right frame 301 along the front-rear direction. The front end and rear end of the right synchronous belt 323 are respectively sleeved on the right driven wheel 321 and the right drive wheel 322. The left side of the right synchronous belt 323 is connected to the upper right end of the right cutting blade 306.

[0075] With the above configuration, when the left cutting blade 206 needs to be moved back and forth by the left cutting drive device 207, the left drive component 224 drives the left drive wheel 222 to rotate horizontally, which in turn drives the left timing belt 223 to rotate horizontally, thereby causing the upper left end of the left cutting blade 206 to move back and forth; when the right cutting blade 306 needs to be moved back and forth by the right cutting drive device 307, the right drive component 324 drives the right drive wheel 322 to rotate horizontally, which in turn drives the right timing belt 323 to rotate horizontally, thereby causing the upper right end of the right cutting blade 306 to move back and forth.

[0076] The left drive component 224 and the right drive component 324 can be any suitable drive component. In a specific embodiment of this utility model, the left drive component 224 and the right drive component 324 are both drive motors.

[0077] The upper left end of the left cutting blade 206 is located to the right of the left fixing plate 220 and is movably connected to the left fixing plate 220. The upper right end of the right cutting blade 306 is located to the left of the right fixing plate 320 and is movably connected to the right fixing plate 320. Any suitable structure can be adopted. Please refer to [link / reference]. Figure 6 and Figure 10 As shown, in a specific embodiment of this utility model, the left-cutting film driving device 207 further includes a left guide rail 225 and a left slider 226. The left guide rail 225 is vertically arranged and arranged along the front-back direction. The left guide rail 225 is located to the right of the left fixed plate 220 and connected to the left fixed plate 220. The left slider 226 is located to the right of the left guide rail 225 and is movably connected to the left guide rail 225. The upper left end of the left-cutting film blade 206 is connected to the left slider 226. The right side of the left synchronous belt 223 is connected to... The left slider 226 is connected to the right film cutting drive device 307, which includes a right guide rail 325 and a right slider 326. The right guide rail 325 is vertically arranged and arranged along the front-back direction. The right guide rail 325 is located to the left of the right fixed plate 320 and is connected to the right fixed plate 320. The right slider 326 is located to the left of the right guide rail 325 and is movably connected to the right guide rail 325. The upper right end of the right film cutting blade 306 is connected to the right slider 326. The left side of the right synchronous belt 323 is connected to the right slider 326.

[0078] The lifting device 402 can have any suitable configuration; please refer to [link / reference]. Figure 1 , Figure 2 and Figures 11-13As shown, in a specific embodiment of this utility model, the lifting device 402 includes a left gear shaft 405, a right gear shaft 406, a left idler wheel 407, a right idler wheel 408, a drive wheel 409, a lifting drive component 410, a left auxiliary wheel 411, a right auxiliary wheel 412, a lifting synchronous belt 413, a left gear 414, a left rack 415, a right gear 416, and a right rack 417, wherein:

[0079] The left gear shaft 405 and the right gear shaft 406 are both arranged along the front-rear direction and spaced apart from each other. The left gear shaft 405 and the right gear shaft 406 are rotatably mounted in the left frame 201 and the right frame 301, respectively, around the front-rear direction. The rear ends of the left gear shaft 405 and the right gear shaft 406 are exposed behind the left frame 201 and the right frame 301, respectively. The left idler wheel 407 and the right idler wheel 408 are both vertically arranged along the left-right direction and spaced apart from each other. The left idler wheel 407 and the right idler wheel 408 are located behind the left frame 201 and the right frame 301, respectively, and are sleeved on the rear ends of the left gear shaft 405 and the right gear shaft 406. The drive wheel 409 is vertically arranged along the left-right direction and located below the middle position between the left idler wheel 407 and the right idler wheel 408. The lifting drive... Component 410 is mounted on the base 1 and connected to the drive wheel 409 for driving the drive wheel 409 to rotate around the front-back direction. The left auxiliary wheel 411 and the right auxiliary wheel 412 are both vertically arranged and along the left-right direction, and are spaced apart from each other. The left auxiliary wheel 411 and the right auxiliary wheel 412 are both located between the left idler wheel 407 and the right idler wheel 408, and are respectively located above the left and right of the drive wheel 409. The lifting synchronous belt 413 is vertically arranged and along the left-right direction. The left and right ends of the lifting synchronous belt 413 are respectively sleeved on the left idler wheel 407 and the right idler wheel 408. The middle part of the lower belt of the lifting synchronous belt 413 is V-shaped and passes around the right auxiliary wheel 412 from the upper left, then passes around the bottom of the drive wheel 409, and then passes around the left auxiliary wheel 411 from the upper right.

[0080] The left rack 415 is vertically arranged along the front-rear direction and facing to the right. The left rack 415 is located in the left end of the movable frame 401. The left gear 414 is vertically arranged along the left-right direction. The left gear 414 is sleeved on the left gear shaft 405 and located to the right of the left rack 415 and meshes with the left rack 415. The right rack 417 is vertically arranged along the front-rear direction and facing to the right. The right rack 417 is located in the right end of the movable frame 401. The right gear 416 is vertically arranged along the left-right direction. The right gear 416 is sleeved on the right gear shaft 406 and located to the right of the right rack 417 and meshes with the right rack 417.

[0081] With the above configuration, when the movable frame 401 needs to be raised or lowered by the lifting device 402, the lifting drive component 410 drives the drive wheel 409 to rotate around the front-back direction, simultaneously driving the left idler wheel 407 and the right idler wheel 408 to rotate around the front-back direction. This, in turn, drives the left gear 414 and the right gear 416 to rotate around the front-back direction through the left gear shaft 405 and the right gear shaft 406, respectively, causing the left rack 415 and the right rack 417 to rise or fall, ultimately driving the movable frame 401 to rise or fall.

[0082] The microplate placement tray 403 is movably mounted on the movable frame 401 and can adopt any suitable structure. Please refer to [link / reference needed]. Figures 12-14 As shown, in a specific embodiment of this utility model, the tray unit 4 further includes a front guide rail 418 and a rear guide rail 419. The front guide rail 418 and the rear guide rail 419 are both horizontally arranged and arranged along the left and right direction, and are spaced apart from each other on the movable frame 401. The micro-perforated plate placement tray 403 is movably arranged on the front guide rail 418 and the rear guide rail 419 respectively.

[0083] The tray drive device 404 can have any suitable configuration; please refer to [link / reference]. Figures 12-14As shown, in a specific embodiment of this utility model, the tray driving device 404 includes a left rotating wheel 420, a right rotating wheel 421, a transmission timing belt 422, and a tray driving component 423. The left rotating wheel 420 and the right rotating wheel 421 are both horizontally arranged and spaced apart from each other, and are both horizontally rotatable on the movable frame 401. The transmission timing belt 422 is horizontally arranged along the left-right direction. The left end and the right end of the transmission timing belt 422 are respectively sleeved on the left rotating wheel 420 and the right rotating wheel 421. The tray driving component 423 is installed on the movable frame 401 and connected to the left rotating wheel 420 to drive the left rotating wheel 420 to rotate horizontally. The front belt portion of the transmission timing belt 422 is connected to the microporous plate placement tray 403.

[0084] With the above configuration, when the micro-perforated plate placement tray 403 needs to be moved left and right by the tray drive device 404, the left rotating wheel 420 is driven to rotate horizontally by the tray drive component 423, which in turn drives the transmission timing belt 422 to rotate horizontally, thereby driving the micro-perforated plate placement tray 403 to move left and right.

[0085] The tray drive component 423 can be any suitable drive component. In one specific embodiment of this utility model, the tray drive component 423 is a drive motor.

[0086] The number of intermediate pressure rollers 505 can be determined as needed. Preferably, there are multiple intermediate pressure rollers 505, which are arranged alternately. "Multiple" here refers to two or more. Please refer to [link to relevant documentation]. Figure 17 As shown, in a specific embodiment of this utility model, the number of intermediate pressure rollers 505 is two.

[0087] The intermediate pressure roller drive device 506 can have any suitable configuration; please refer to [link / reference]. Figures 15-16 As shown, in a specific embodiment of this utility model, the intermediate pressure roller driving device 506 includes a transmission rack 507, a transmission gear 508, and an intermediate pressure roller driving component 509. The transmission rack 507 is vertically arranged and arranged along the front-back direction and facing left. The transmission rack 507 is located below and connected to the connecting plate 504. The transmission gear 508 is horizontally arranged and located to the left of the transmission rack 507 and meshes with the transmission rack 507. The intermediate pressure roller driving component 509 is located in the film pressing frame 501 and installed on the base 1 and is connected to the transmission gear 508 to drive the transmission gear 508 to rotate horizontally.

[0088] With the above configuration, when the connecting plate 504 needs to be moved back and forth by the intermediate pressure roller drive device 506, the transmission gear 508 is driven to rotate horizontally by the intermediate pressure roller drive component 509, so that the transmission rack 507 moves back and forth, thereby driving the connecting plate 504 to move back and forth.

[0089] The intermediate pressure roller drive component 509 can be any suitable drive component. In a specific embodiment of this utility model, the intermediate pressure roller drive component 509 is a drive motor.

[0090] The intermediate pressing unit 5 may also include any other suitable configuration; please refer to [link / reference]. Figures 15-17 As shown, in a specific embodiment of this utility model, the intermediate pressing unit 5 further includes a left fixing block 510, a right fixing block 511, a left elastic element 512, and a right elastic element 513. The left fixing block 510 and the right fixing block 511 are both vertically arranged and arranged along the front-back direction, and are spaced apart from each other on the left and right sides. The left fixing block 510 and the right fixing block 511 are both located between the left moving plate 502 and the right moving plate 503 and are vertically movably connected to the left moving plate 502 and the right moving plate 503, respectively. The left elastic element 512 and the right elastic element 513 are both vertically arranged. The left elastic element 512 is located between the left fixing block 510 and the connecting plate 504 and is connected to the left fixing block 510 and the connecting plate 504, respectively. The right elastic element 513 is located between the right fixing block 511 and the connecting plate 504 and is connected to the right fixing block 511 and the connecting plate 504, respectively.

[0091] With the above configuration, when the microperforated plate 9 abuts against the intermediate pressure roller 505, pressure is applied to the microperforated plate 9 by the left elastic member 512 and the right elastic member 513, and the microperforated plate 9 can be raised and lowered by the lifting device 402 to adjust the pressure film elasticity.

[0092] The left elastic element 512 and the right elastic element 513 can be any suitable elastic element; please refer to [link / reference]. Figure 17 As shown, in a specific embodiment of this utility model, both the left elastic member 512 and the right elastic member 513 are springs.

[0093] The number of left elastic members 512 and the number of right elastic members 513 can be determined as needed. More preferably, there are multiple left elastic members 512 and multiple right elastic members 513, and the multiple left elastic members 512 and multiple right elastic members 513 are arranged alternately. Please refer to [link to relevant documentation]. Figures 16-17 As shown, in a specific embodiment of this utility model, the number of left elastic members 512 and the number of right elastic members 513 are both two.

[0094] The intermediate pressing unit 5 may also include any other suitable configuration; please refer to [link / reference]. Figures 15-17 As shown, in a specific embodiment of this utility model, the intermediate pressing unit 5 further includes an intermediate guide rod 514. The intermediate guide rod 514 is arranged along the left-right direction and is respectively inserted into the left fixing block 510 and the right fixing block 511 along the left-right direction and is located above the intermediate pressing roller 505. The left end and the right end of the intermediate guide rod 514 are respectively vertically movably disposed in the left moving plate 502 and the right moving plate 503. With the above arrangement, the left fixing block 510 and the right fixing block 511 are guided to move vertically relative to the left moving plate 502 and the right moving plate 503 by the guiding action of the intermediate guide rod 514.

[0095] In this invention, the left film placement roller 202 and the right film placement roller 302 can be fitted with film of different materials, such as... Figure 1 , Figure 2 and Figure 11 As shown, a foil film 6 and a pressure-sensitive film 7 are respectively fitted onto the left film placement roller 202 and the right film placement roller 302. A waste cylinder 8 is fitted onto both the left back film collecting roller 203 and the right back film collecting roller 303. The waste cylinder 8 is used to collect the back film after the film roll is sealed. The free end of the foil film 6 is inclined downwards and to the right from the left film placement roller 202, passing through the left frame 201. Then, it is wound from left to right around the bottom of the left pressure roller 205, with the front facing down. Next, the back film of the free end of the foil film 6 is passed upwards through the left frame 201 and wound onto the left back film collecting roller. On the waste cylinder 8 on 203, the free end of the pressure-sensitive film 7 is inclined downwards and to the right from the right to the left from the right film placement roller 302, and passed into the right frame 301. Then, it is wound from the right side of the right pressure roller 305 from left to right, passing over the bottom of the right pressure roller 305 with the front facing down. Next, the back film of the free end of the pressure-sensitive film 7 is passed through the right frame 301 with the back film facing up and wound onto the waste cylinder 8 on the right back film collection roller 303. Thus, the left sealing unit 2 can seal the foil film 6, and the right sealing unit 3 can seal the pressure-sensitive film 7. The sealing processes of the two are similar. The following describes the working process of this utility model using the sealing of the left sealing unit 2 as an example.

[0096] When sealing the foil film 6, the microperforated plate 9 to be sealed, such as a 96-hole plate, is manually or mechanically placed in the microperforated plate clamping position on the top surface of the microperforated plate placement tray 403. The movable frame 401 is raised by the lifting device 402, which drives the microperforated plate placement tray 403 to rise until the microperforated plate 9 reaches the sealing height (the sealing height is slightly lower than the bottom of the left pressure roller 205) and then stops.

[0097] The micro-perforated plate placement tray 403 is driven to move to the left by the tray drive device 404, which in turn moves the micro-perforated plate 9 to the left until the right edge of the micro-perforated plate 9 is directly below the left pressure roller 205. At this point, there is still a small vertical gap between the micro-perforated plate 9 and the left pressure roller 205. The movable frame 401 is then raised again by the lifting device 402, which in turn raises the micro-perforated plate placement tray 403 until the micro-perforated plate 9 touches the foil film 6 at the bottom of the left pressure roller 205. At this point, the micro-perforated plate placement tray 403 is driven to move to the right by the tray drive device 404, which in turn moves the micro-perforated plate 9 to the right. The left roller drive device 204 synchronously drives the left back film collecting roller 203 to rotate in the front-back direction, which in turn drives the waste material cylinder 8 on it to rotate in the front-back direction, winding the back film of the foil film 6, driving the free end of the foil film 6 to rotate in the front-back direction, driving the left pressure roller 205 to rotate counterclockwise (from the front-back perspective), and sealing the microperforated plate 9 through the left pressure roller 205. After the sealing is completed (i.e., the left edge of the microperforated plate 9 moves directly below the left pressure roller 205), the left film cutting drive device 207 drives the left film cutting blade 206 to move forward and cut the foil film 6.

[0098] After the film cutting is completed, the movable frame 401 is lowered by the lifting device 402, which drives the micro-perforated plate placement tray 403 to descend. Then, the tray driving device 404 drives the micro-perforated plate placement tray 403 to move to the right to the starting position. At this time, the movable frame 401 is raised by the lifting device 402, which drives the micro-perforated plate placement tray 403 to rise until the micro-perforated plate 9 reaches the secondary sealing height (the secondary sealing height is slightly lower than the bottom of the intermediate pressure roller 505) and stops.

[0099] At this time, the connecting plate 504 is driven forward by the intermediate pressure roller drive device 506, and the intermediate pressure roller 505 is driven forward by the left moving plate 502 and the right moving plate 503 until the intermediate pressure roller 505 moves directly above the rear edge of the micro-perforated plate 9 and stops. At this time, there is still a small gap between the micro-perforated plate 9 and the intermediate pressure roller 505 in the vertical direction. The movable frame 401 is raised again by the lifting device 402, which drives the micro-perforated plate placement tray 403 to rise again until the micro-perforated plate 9 touches the intermediate pressure roller 505. The connecting plate 504 is driven forward by the intermediate pressure roller drive device 506, and the intermediate pressure roller 505 is driven forward by the left moving plate 502 and the right moving plate 503 to perform a longitudinal sealing action on the micro-perforated plate 9, completing the secondary pressing.

[0100] Then, the connecting plate 504 is driven to move backward by the intermediate pressure roller drive device 506, and the intermediate pressure roller 505 is driven to move backward by the left moving plate 502 and the right moving plate 503. The movable frame 401 is lowered by the lifting device 402, and the microporous plate placement tray 403 is lowered to the starting position. The sealed microporous plate 9 is taken out manually or by a robot.

[0101] Therefore, by adopting this utility model, two rolls of film of different materials can be placed simultaneously through the left sealing unit and the right sealing unit. The left sealing unit and the right sealing unit can achieve sealing of different materials in the left and right directions. The middle pressing unit can perform secondary pressing on the microporous plate that has been sealed with tin foil film (or pressure-sensitive film) in the front and back directions to achieve a better and tighter sealing state.

[0102] Therefore, this utility model can simultaneously place two different types of film rolls. According to experimental needs, the microplate can be sealed with film rolls of the corresponding materials. Furthermore, the sealing action can be performed in both the long and short sides of the microplate, ensuring that the microplate is completely compacted around its perimeter. This ensures that the sealing process is safe and reliable, without generating unnecessary volatilization or affecting experimental results, thus improving work efficiency.

[0103] In summary, the microplate sealing machine of this utility model, which is compatible with automated pipetting workstations, can load two different types of film rolls, and can seal microplates as needed, improving work efficiency. Moreover, it can perform bidirectional sealing to ensure tight and secure sealing, further enhancing work efficiency, and is suitable for large-scale promotion and application.

[0104] Therefore, it is evident that the objective of this utility model has been fully and effectively achieved. The function and structural principles of this utility model have been demonstrated and explained in the embodiments. Without departing from the stated principles, any modifications can be made to the implementation methods. Therefore, this utility model includes all modified embodiments based on the spirit and scope of the claims.

Claims

1. A microplate sealing machine adaptable to automated pipetting workstations, characterized in that, It includes a base, a left sealing unit, a right sealing unit, a tray unit, and a middle pressing unit, wherein: The left sealing unit includes a left frame, a left film placement roller, a left back film collecting roller, a left roller drive device, a left pressure roller, a left film cutting blade, and a left film cutting drive device. The left frame is vertically arranged and mounted on the base along the left-right direction. The left film placement roller and the left back film collecting roller are both arranged along the front-back direction and spaced apart from each other. The left film placement roller is rotatably mounted on the left frame around the front-back direction. The left roller drive device is mounted on the left frame and connected to the left back film collecting roller to drive the left back film collecting roller. The collecting roller rotates around the front-back direction. The left pressure roller is arranged along the front-back direction and located in the left frame. The front and rear ends of the left pressure roller are rotatably connected to the left frame around the front-back direction. The left cutting blade is arranged along the front-back direction and inclined to the lower right in the direction from left to right. The left cutting drive device is installed on the left frame and connected to the upper left end of the left cutting blade to drive the left cutting blade to move back and forth. The lower right end of the left cutting blade is the cutting end and is located to the left of the left pressure roller and adjacent to the left pressure roller. The right sealing unit includes a right frame, a right film placement roller, a right back film collecting roller, a right roller drive device, a right pressure roller, a right film cutting blade, and a right film cutting drive device. The right frame is vertically arranged on the base along the left-right direction and located to the right of the left frame. The right back film collecting roller and the right film placement roller are both arranged along the front-back direction and spaced apart from each other. The right film placement roller is rotatably mounted on the right frame around the front-back direction. The right roller drive device is mounted on the right frame and connected to the right back film collecting roller for... The right back film collecting roller is driven to rotate around the front-back direction. The right pressure roller is arranged along the front-back direction and located in the right frame. The front and rear ends of the right pressure roller are rotatably connected to the right frame around the front-back direction. The right film cutting blade is arranged along the front-back direction and inclined to the lower left in the direction from right to left. The right film cutting drive device is installed on the right frame and connected to the upper right end of the right film cutting blade to drive the right film cutting blade to move back and forth. The lower left end of the right film cutting blade is the cutting end and is located to the right of the right pressure roller and adjacent to the right pressure roller. The tray unit includes a movable frame, a lifting device, a microporous plate placement tray, and a tray driving device. The movable frame is vertically arranged and positioned along the left-right direction, abutting against the base. The left and right ends of the movable frame are respectively inserted into the left and right frames along the left-right direction and are vertically movable relative to the left and right frames. The lifting device is respectively installed on the base, the left frame, and the right frame and connected to the movable frame to drive the movable frame to move up and down. The microporous plate placement tray is horizontally arranged and positioned along the left-right direction, and is movable left and right on the movable frame. The tray driving device is installed on the movable frame and connected to the microporous plate placement tray to drive the microporous plate placement tray to move left and right. The top surface of the microporous plate placement tray is provided with a microporous plate locking position. The intermediate pressing unit includes a pressing frame, a left moving plate, a right moving plate, a connecting plate, an intermediate pressure roller, and an intermediate pressure roller driving device. The pressing frame is vertically arranged on the base along the front-back direction. The pressing frame is located between the left and right frames and behind the middle of the movable frame. The left and right moving plates are both vertically arranged along the front-back direction and spaced apart from each other. The left and right moving plates are movably mounted on the pressing frame. The connecting plate is horizontally arranged along the front-back direction. The left and right sides of the connecting plate are respectively mounted on the left and right moving plates. The intermediate pressure roller is arranged along the left-right direction and located between the left and right moving plates, and is rotatably connected to the left and right moving plates respectively around the left-right direction. The intermediate pressure roller is located behind the position above the microporous plate placement tray. The intermediate pressure roller driving device is located in the pressing frame and mounted on the base, and is connected to the connecting plate to drive the connecting plate to move back and forth.

2. The microplate sealing machine adaptable to automated pipetting workstations as described in claim 1, characterized in that, The left sealing unit further includes a first left rotating roller and a second left rotating roller. The first left rotating roller is arranged along the front-back direction and rotatably arranged in the left frame around the front-back direction and is located above the left pressure roller. The second left rotating roller is arranged along the front-back direction and rotatably arranged in the left frame around the front-back direction and is located to the upper right of the left pressure roller. The right sealing unit further includes a first right rotating roller and a second right rotating roller. The first right rotating roller is arranged along the front-back direction and rotatably arranged in the right frame around the front-back direction and is located above the right pressure roller. The second right rotating roller is arranged along the front-back direction and rotatably arranged in the right frame around the front-back direction and is located to the upper left of the right pressure roller.

3. The microplate sealing machine adaptable to automated pipetting workstations as described in claim 1, characterized in that, The left sealing unit further includes a left front fixing block, a left rear fixing block, a left front elastic element, and a left rear elastic element. The left front fixing block and the left rear fixing block are both vertically arranged and along the left-right direction, and are spaced apart from each other. The left front fixing block and the left rear fixing block are both located in the left frame and are vertically movable relative to the left frame. The left pressure roller is located between the left front fixing block and the left rear fixing block and is rotatably connected to the left front fixing block and the left rear fixing block respectively around the front-back direction. The left front elastic element and the left rear elastic element are both vertically arranged and spaced apart from each other. The left front elastic element is located between the left frame and the left front fixing block and is connected to the left frame and the left front fixing block respectively. The left rear elastic element is located between the left frame and the left rear fixing block and is connected to the left frame and the left rear fixing block respectively. The right sealing unit further includes a right front fixing block, a right rear fixing block, a right front elastic element, and a right rear elastic element. The right front fixing block and the right rear fixing block are both vertically arranged and along the left-right direction, and are spaced apart from each other. The right front fixing block and the right rear fixing block are both located in the right frame and are vertically movable relative to the right frame. The right pressure roller is located between the right front fixing block and the right rear fixing block and is rotatably connected to the right front fixing block and the right rear fixing block respectively around the left-right direction. The right front elastic element and the right rear elastic element are both vertically arranged and spaced apart from each other. The right front elastic element is located between the right frame and the right front fixing block and is connected to the right frame and the right front fixing block respectively. The right rear elastic element is located between the right frame and the right rear fixing block and is connected to the right frame and the right rear fixing block respectively.

4. The microplate sealing machine adaptable to automated pipetting workstations as described in claim 3, characterized in that, The left sealing unit further includes a left pair of rollers, which includes a first left roller and a second left roller. The first left roller and the second left roller are both arranged along the front-rear direction and spaced apart from each other on the left and right sides. The first left roller and the second left roller are both located between the left front fixed block and the left rear fixed block and are rotatably connected to the left front fixed block and the left rear fixed block respectively around the front-rear direction. The first left roller is located to the right of the left pressure roller. The right sealing unit further includes a right pair of rollers, which includes a first right roller and a second right roller. The second right roller and the first right roller are both arranged along the front-rear direction and spaced apart from each other on the left and right sides. The first right roller and the second right roller are both located between the right front fixed block and the right rear fixed block and are rotatably connected to the right front fixed block and the right rear fixed block respectively around the front-rear direction. The first right roller is located to the left of the right pressure roller.

5. The microplate sealing machine adaptable to automated pipetting workstations as described in claim 3, characterized in that, The left sealing unit further includes a left guide rod, which is arranged along the front-rear direction and is respectively inserted into the left front fixing block and the left rear fixing block along the front-rear direction and is located above the left pressure roller. The front end and rear end of the left guide rod are both vertically movable in the left frame. The right sealing unit further includes a right guide rod, which is arranged along the front-rear direction and is respectively inserted into the right front fixing block and the right rear fixing block along the front-rear direction and is located above the right pressure roller. The front end and rear end of the right guide rod are both vertically movable in the right frame.

6. The microplate sealing machine adaptable to automated pipetting workstations as described in claim 1, characterized in that, The left-cutting film driving device includes a left fixed plate, a left driven wheel, a left driving wheel, a left synchronous belt, and a left driving component. The left fixed plate is horizontally arranged and positioned in the left frame along the front-back direction. The rear end of the left fixed plate passes through the left frame along the front-back direction and is exposed behind the left frame. The upper left end of the left-cutting film blade is located to the right of the left fixed plate and is movably connected to the left fixed plate. The left driven wheel and the left driving wheel are both horizontally arranged and spaced apart from each other, and are respectively horizontally rotatably mounted on the front end and the rear end of the left fixed plate. The left driving component is installed at the rear end of the left fixed plate and connected to the left driving wheel to drive the left driving wheel to rotate horizontally. The left synchronous belt is horizontally arranged and positioned along the front-back direction and passes through the left frame along the front-back direction. The front end and the rear end of the left synchronous belt are respectively sleeved on the left driven wheel and the left driving wheel. The right side of the left synchronous belt is connected to the upper left end of the left-cutting film blade. The right-cutting drive device includes a right fixed plate, a right driven wheel, a right driving wheel, a right synchronous belt, and a right drive component. The right fixed plate is horizontally arranged in the right frame along the front-back direction. The rear end of the right fixed plate passes through the right frame along the front-back direction and is exposed behind the right frame. The upper right end of the right-cutting blade is located to the left of the right fixed plate and is movably connected to the right fixed plate. The right driven wheel and the right driving wheel are both horizontally arranged and spaced apart from each other, and are respectively horizontally rotatably arranged on the front end and the rear end of the right fixed plate. The right drive component is installed at the rear end of the right fixed plate and connected to the right driving wheel to drive the right driving wheel to rotate horizontally. The right synchronous belt is horizontally arranged along the front-back direction and passes through the right frame along the front-back direction. The front end and the rear end of the right synchronous belt are respectively sleeved on the right driven wheel and the right driving wheel. The left side of the right synchronous belt is connected to the upper right end of the right-cutting blade.

7. The microplate sealing machine adaptable to automated pipetting workstations as described in claim 1, characterized in that, The lifting device includes a left gear shaft, a right gear shaft, a left idler wheel, a right idler wheel, a drive wheel, a lifting drive component, a left auxiliary wheel, a right auxiliary wheel, a lifting timing belt, a left gear, a left rack, a right gear, and a right rack, wherein: The left and right gear shafts are both arranged along the front-rear direction and spaced apart from each other. The left and right gear shafts are rotatably mounted in the left and right frames respectively, with the rear ends of the left and right gear shafts exposed behind the left and right frames respectively. The left and right idler gears are both vertically arranged along the left-right direction and spaced apart from each other. The left and right idler gears are located behind the left and right frames respectively and are respectively fitted onto the rear ends of the left and right gear shafts. The drive wheel is vertically arranged along the left-right direction and located below the middle position between the left and right idler gears. The lifting drive... The component is mounted on the base and connected to the drive wheel to drive the drive wheel to rotate around the front-back direction. The left auxiliary wheel and the right auxiliary wheel are both vertically arranged and along the left-right direction, and are spaced apart from each other. The left auxiliary wheel and the right auxiliary wheel are both located between the left idler wheel and the right idler wheel, and are respectively located above the left and right of the drive wheel. The lifting synchronous belt is vertically arranged and along the left-right direction. The left end and the right end of the lifting synchronous belt are respectively sleeved on the left idler wheel and the right idler wheel. The middle part of the lower belt of the lifting synchronous belt is V-shaped and passes around the right auxiliary wheel from the upper left, then passes around the bottom of the drive wheel, and then passes around the left auxiliary wheel from the upper right. The left rack is vertically arranged along the front-rear direction and facing to the right. The left rack is located at the left end of the movable frame. The left gear is vertically arranged along the left-right direction. The left gear is sleeved on the left gear shaft and located to the right of the left rack and meshes with the left rack. The right rack is vertically arranged along the front-rear direction and facing to the right. The right rack is located at the right end of the movable frame. The right gear is vertically arranged along the left-right direction. The right gear is sleeved on the right gear shaft and located to the right of the right rack and meshes with the right rack.

8. The microplate sealing machine adaptable to automated pipetting workstations as described in claim 1, characterized in that, The pallet drive device includes a left rotating wheel, a right rotating wheel, a transmission timing belt, and a pallet drive component. The left and right rotating wheels are both horizontally arranged and spaced apart from each other, and are both horizontally rotatable on the movable frame. The transmission timing belt is horizontally arranged along the left-right direction, with its left and right ends respectively fitted onto the left and right rotating wheels. The pallet drive component is mounted on the movable frame and connected to the left rotating wheel to drive it to rotate horizontally. The front portion of the transmission timing belt is connected to the microporous plate for placing the pallet.

9. The microplate sealing machine adaptable to automated pipetting workstations as described in claim 1, characterized in that, The intermediate pressure roller drive device includes a transmission rack, a transmission gear, and an intermediate pressure roller drive component. The transmission rack is vertically arranged along the front-to-back direction and facing left. The transmission rack is located below and connected to the connecting plate. The transmission gear is horizontally arranged to the left of the transmission rack and meshes with the transmission rack. The intermediate pressure roller drive component is located in the film pressing frame and mounted on the base, and is connected to the transmission gear to drive the transmission gear to rotate horizontally.

10. The microplate sealing machine adaptable to automated pipetting workstations as described in claim 1, characterized in that, The intermediate pressing unit further includes a left fixing block, a right fixing block, a left elastic element, and a right elastic element. The left fixing block and the right fixing block are both vertically arranged and arranged along the front-back direction, and are spaced apart from each other on the left and right sides. The left fixing block and the right fixing block are both located between the left moving plate and the right moving plate and are vertically movably connected to the left moving plate and the right moving plate, respectively. The left elastic element and the right elastic element are both vertically arranged. The left elastic element is located between the left fixing block and the connecting plate and is connected to the left fixing block and the connecting plate, respectively. The right elastic element is located between the right fixing block and the connecting plate and is connected to the right fixing block and the connecting plate, respectively.