Sample disc transfer mechanism

Abstract

The utility model relates to the technical field of fluorescence immunoassay detectors, in particular to a sample plate transfer mechanism which comprises a transverse moving unit, a lifting unit arranged on the transverse moving unit and an adsorption unit arranged on the lifting unit, the lifting unit comprises a mounting base arranged on the transverse moving unit, an upper supporting plate, a lower supporting plate, a lead screw rotationally arranged between the upper supporting plate and the lower supporting plate, a lifting motor arranged on the upper supporting plate and a lifting base arranged on the lead screw, wherein the upper supporting plate and the lower supporting plate are arranged at the upper end and the lower end of the mounting base respectively. The adsorption unit comprises an adsorption support arranged on the lifting base and a suction cup arranged at the lower end of the adsorption support. The lead screw is vertically arranged, and the upper end of the lead screw penetrates through the upper supporting plate to be in transmission connection with the lifting motor. According to the structure, a single sample disc can be stably transferred to an equipment detection station, the structure is simple, the cost is low, and the stability is high.

Description

Technical Field

[0001] This utility model relates to the field of fluorescence immunoassay analyzer technology, specifically to a sample tray transfer mechanism. Background Technology

[0002] Fluorescence immunoassay is an in vitro detection technique that uses fluorescently labeled antibodies or antigens as tracers. In automated fluorescence immunoassay equipment, sample trays are needed to carry magnetic beads, reagents, and samples for reaction. To ensure uninterrupted detection, a stack of sample trays is usually stored in the equipment's storage location. This necessitates a transfer mechanism that can transfer the sample trays one by one to the detection station to meet the requirements of automated fluorescence immunoassay equipment. Utility Model Content

[0003] To solve the above problems, this utility model provides a sample tray transfer mechanism that can stably transfer a single sample tray to the equipment testing station. It has a simple structure, low cost, and strong stability.

[0004] The technical solution adopted by this utility model is to provide a sample tray transfer mechanism, including a transverse unit, a lifting unit disposed on the transverse unit, and an adsorption unit disposed on the lifting unit. The lifting unit includes a mounting base disposed on the transverse unit, an upper support plate and a lower support plate respectively disposed at the upper and lower ends of the mounting base, a lead screw rotatably disposed between the upper and lower support plates, a lifting motor disposed on the upper support plate, and a lifting seat disposed on the lead screw. The adsorption unit includes an adsorption bracket disposed on the lifting seat and a suction cup disposed at the lower end of the adsorption bracket. The lead screw is vertically arranged and its upper end passes through the upper support plate and is connected to the lifting motor for transmission. The mounting base has a degree of freedom of lateral translation with the help of the transverse unit. The lifting motor drives the lead screw to rotate, thereby causing the lifting seat to move up and down on the lead screw. The adsorption bracket and the suction cup have a degree of freedom of movement with the help of the lifting seat.

[0005] The lifting unit also includes a vertical rod disposed between the upper support plate and the lower support plate and a lifting slider slidably disposed on the vertical rod. The vertical rod is parallel to the lead screw and there are two of them, located on both sides of the lead screw. The lifting slider is fixed to the lifting seat, and the lifting seat drives the lifting slider to move synchronously on the vertical rod.

[0006] The suction cups are provided in four parts and arranged in a rectangular array.

[0007] The lateral movement unit includes lateral movement brackets arranged opposite each other, a crossbar and a lateral movement belt arranged between the lateral movement brackets, a lateral movement slider slidably arranged on the crossbar, a lateral movement motor arranged on the rear end of the mounting base, and a pulley arranged on the drive end of the lateral movement motor. The pulley meshes with the lateral movement belt, the rear end of the mounting base is fixed to the lateral movement slider, and the lateral movement motor drives the pulley to rotate, causing the mounting base to move laterally on the crossbar.

[0008] The lateral movement unit also includes a tensioning bracket disposed at the rear end of the mounting base, a tensioning spring fixed at one end to the tensioning bracket, a mounting bracket fixed at the other end of the tensioning spring, and a tensioning wheel rotatably disposed on the mounting bracket. The tensioning wheel is located above the pulley, the tensioning spring is parallel to the vertical rod, and the lateral movement belt is wound around the pulley and the tensioning wheel in an S-shaped trajectory.

[0009] The beneficial effects of this utility model are that it provides a sample tray transfer mechanism. The transverse unit drives the mounting base to move laterally, and the lifting motor drives the lead screw to rotate, which can drive the lifting base to move up and down. The adsorption bracket and the suction cup can move and move up and down under the drive of the transverse unit and the lifting base. In conjunction with the suction cup, the sample tray is adsorbed and transferred. The structure is simple, the movement is stable, and the cost is low. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a structural diagram of the mounting base, upper support plate, and lower support plate;

[0012] Figure 3 This is a structural diagram of the transverse motor and transverse belt;

[0013] Figure 4 This is a schematic diagram of the utility model in use.

[0014] In the attached diagram, 1 is the mounting base, 2 is the upper support plate, 3 is the lower support plate, 4 is the lead screw, 5 is the lifting motor, 6 is the lifting seat, 7 is the suction bracket, 8 is the suction cup, 9 is the vertical rod, 10 is the lifting slider, 11 is the horizontal movement bracket, 12 is the horizontal rod, 13 is the horizontal movement belt, 14 is the horizontal movement slider, 15 is the horizontal movement motor, 16 is the pulley, 17 is the tensioning bracket, 18 is the tension spring, 19 is the mounting bracket, 20 is the tension wheel, 21 is the storage compartment, and 22 is the testing station. Detailed Implementation

[0015] like Figure 1-4As shown, this utility model provides a sample tray transfer mechanism, including a transverse unit, a lifting unit disposed on the transverse unit, and an adsorption unit disposed on the lifting unit. The lifting unit includes a mounting base 1 disposed on the transverse unit, an upper support plate 2 and a lower support plate 3 respectively disposed at the upper and lower ends of the mounting base 1, a lead screw 4 rotatably disposed between the upper support plate 2 and the lower support plate 3, a lifting motor 5 disposed on the upper support plate 2, and a lifting seat 6 disposed on the lead screw 4. The adsorption unit includes an adsorption bracket 7 disposed on the lifting seat 6 and a suction cup 8 disposed at the lower end of the adsorption bracket 7. The lead screw 4 is vertically arranged and its upper end passes through the upper support plate 2 and is connected to the lifting motor 5 for transmission. The mounting base 1 has a degree of freedom of lateral translation with the help of the transverse unit. The lifting motor 5 drives the lead screw 4 to rotate, thereby causing the lifting seat 6 to move up and down on the lead screw 4. The adsorption bracket 7 and the suction cup 8 have a degree of freedom of movement with the help of the lifting seat 6.

[0016] The lateral movement unit drives the mounting base 1 to move laterally, while the lifting motor 5 drives the lead screw 4 to rotate. The lifting seat 6 and the lead screw 4 are compatible; the rotation of the lead screw 4 drives the lifting seat 6 to move up and down. The adsorption bracket 7 and the suction cup 8 can move and move up and down under the action of the lateral movement unit and the lifting seat 6, with the adsorption end of the suction cup 8 facing downwards. In use, the lateral movement unit moves the suction cup 8 to above the sample tray storage compartment 21. The lifting motor 5 starts, and the lifting seat 6 drives the suction cup 8 on the adsorption bracket 7 to descend until the adsorption end of the suction cup 8 touches the sample tray, adsorbing it. The suction cup 8 then lifts the sample tray together, and after lateral movement, moves it to the testing station. The suction cup 8 then descends, placing the sample tray on the testing station 22. This design uses a suction cup adsorption method to transfer the sample tray; it has a simple structure, stable movement, and low cost.

[0017] like Figure 1-2 As shown, the lifting unit also includes a vertical rod 9 disposed between the upper support plate 2 and the lower support plate 3 and a lifting slider 10 slidably disposed on the vertical rod 9. The vertical rod 9 is parallel to the lead screw 4 and there are two of them, located on both sides of the lead screw 4 respectively. The lifting slider 10 is fixed to the lifting seat 6, and the lifting seat 6 drives the lifting slider 10 to move synchronously on the vertical rod 9.

[0018] Two vertical rods 9 are added for guidance and support, and the lifting slider 10 and the lifting seat 6 are raised and lowered synchronously, making the lifting seat 6 more stable when it is raised and lowered.

[0019] like Figure 1 As shown, there are four suction cups 8 arranged in a rectangular array.

[0020] The four suction cups 8 can adsorb the sample plate at four positions, improving the adsorption strength and the uniformity of the force on the sample plate, making the adsorbed sample plate balanced and the center of gravity not deviate, thus further ensuring the stability of the sample plate during transfer.

[0021] like Figure 1 and Figure 3 As shown, the transverse unit includes a transverse support 11 arranged opposite to each other, a crossbar 12 and a transverse belt 13 arranged between the transverse support 11, a transverse slider 14 slidably arranged on the crossbar 12, a transverse motor 15 arranged on the rear end of the mounting base 1, and a pulley 16 arranged on the drive end of the transverse motor 15. The pulley 16 meshes with the transverse belt 13. The rear end of the mounting base 1 is fixed to the transverse slider 14. The transverse motor 15 drives the pulley 16 to rotate, thereby causing the mounting base 1 to move laterally on the crossbar 12.

[0022] The transverse belt 13 is fixed and uses a toothed belt. The pulley 16 is adapted to the belt. When the transverse motor 15 drives the pulley 16 to rotate, the pulley 16 will roll on the transverse belt 13. With the transverse belt 13 stationary, the pulley 16 will drive the mounting base 1 to move horizontally. There are two sets of crossbars 12 and transverse sliders 14, which play a supporting and guiding role. They are located above and below the transverse belt 13, respectively. When the mounting base 1 moves horizontally, it drives the transverse sliders 14 to move synchronously with the crossbars 12, which further improves the stability during the movement.

[0023] like Figure 3 As shown, the transverse unit also includes a tensioning bracket 17 disposed at the rear end of the mounting base 1, a tensioning spring 18 fixed at one end to the tensioning bracket 17, a mounting bracket 19 fixed at the other end of the tensioning spring 18, and a tensioning wheel 20 rotatably disposed on the mounting bracket 19. The tensioning wheel 20 is located above the pulley 16, the tensioning spring 18 is parallel to the vertical rod 9, and the transverse belt 13 is wound around the pulley 16 and the tensioning wheel 20 in an S-shaped trajectory.

[0024] Adding a tensioning pulley 20 allows the transverse belt 13 and pulley 16 to engage more closely, making the movement more stable. Furthermore, the tension of the tensioning pulley 20 is adaptively controlled by the tensioning spring 18, eliminating the need for additional adjustments and making it more convenient to use.

Claims

1. A sample plate transfer mechanism comprising a horizontal transfer unit, a lifting unit provided on the horizontal transfer unit, and a suction unit provided on the lifting unit, characterized by: The sued lifting unit comprises a mounting base (1) arranged on the horizontal moving unit, an upper support plate (2) and a lower support plate (3) arranged on the upper end and the lower end of the mounting base (1) respectively, a lead screw (4) rotatably arranged between the upper support plate (2) and the lower support plate (3), a lifting motor (5) arranged on the upper support plate (2), and a lifting base (6) arranged on the lead screw (4), the suction unit comprises a suction support (7) arranged on the lifting base (6) and a suction disc (8) arranged on the lower end of the suction support (7), the lead screw (4) is vertically arranged and the upper end of the lead screw (4) is in driving connection with the lifting motor (5) through the upper support plate (2), the mounting base (1) has the freedom of horizontal translation through the horizontal moving unit, the lifting motor (5) drives the lead screw (4) to rotate and drives the lifting base (6) to lift on the lead screw (4), and the suction support (7) and the suction disc (8) have the freedom of lifting through the lifting base (6).

2. The sample plate transfer mechanism of claim 1, wherein: The lifting unit further comprises vertical rods (9) arranged between the upper support plate (2) and the lower support plate (3) and lifting sliding blocks (10) slidingly arranged on the vertical rods (9), the vertical rods (9) are parallel to the lead screw (4) and are arranged in two, and are arranged on the two sides of the lead screw (4) respectively, the lifting sliding blocks (10) are fixed with the lifting base (6), and the lifting base (6) drives the lifting sliding blocks (10) to synchronously translate on the vertical rods (9).

3. The sample plate transfer mechanism of claim 1, wherein: The suction disc (8) is arranged in four and arranged in a rectangular array.

4. The sample plate transfer mechanism of claim 1, wherein: The horizontal moving unit comprises oppositely arranged horizontal moving supports (11), a horizontal rod (12) and a horizontal moving belt (13) arranged between the horizontal moving supports (11), a horizontal moving sliding block (14) slidingly arranged on the horizontal rod (12), a horizontal moving motor (15) arranged on the rear end of the mounting base (1), and a belt pulley (16) arranged on the driving end of the horizontal moving motor (15), the belt pulley (16) is in meshing connection with the horizontal moving belt (13), the rear end of the mounting base (1) is fixed with the horizontal moving sliding block (14), and the horizontal moving motor (15) drives the belt pulley (16) to rotate and drives the mounting base (1) to horizontally translate on the horizontal rod (12).

5. The sample plate transfer mechanism of claim 4, wherein: The horizontal moving unit further comprises a tensioning support (17) arranged on the rear end of the mounting base (1), a tensioning spring (18) fixed at one end on the tensioning support (17), a mounting support (19) fixed at the other end of the tensioning spring (18), and a tensioning wheel (20) rotatably arranged on the mounting support (19), the tensioning wheel (20) is located above the belt pulley (16), the tensioning spring (18) is parallel to the vertical rod (9), and the horizontal moving belt (13) is wound on the belt pulley (16) and the tensioning wheel (20) in an S-shaped track.

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