Automatic cap screwing work station compatible with various tube types for cryopreservation tube and use method of automatic cap screwing work station

Abstract

The invention discloses an automatic cap screwing work station compatible with various tube types for a cryopreservation tube and a using method of the automatic cap screwing work station. The workstation comprises a bottom plate, a test tube rack placing mechanism arranged on the bottom plate, a supporting mechanism arranged on the bottom plate, a power control mechanism arranged on the supporting mechanism, a first moving plate connected with the power control mechanism, a second moving plate connected with the power control mechanism, and a supporting plate arranged below the second moving plate, the test tube rack placing mechanism is installed on the bottom plate, the power control mechanism is installed on the supporting mechanism, the first moving plate and the second moving plate are connected with the power control mechanism, and the power control mechanism is connected with the test tube rack placing mechanism. The inner screw rod mechanism is connected with the first moving plate and the second moving plate; the cover opening, cover removing, cover grabbing and cover closing operations of the test tubes on the test tube rack can be well completed, the test tube covers with the operation size difference being 1 mm or above are operated, and the application range is wider.

Description

Technical Field

[0001] The invention relates to the technical field of SBS cryopreservation tube processing, in particular to an automatic capping workstation for cryopreservation tubes that is compatible with various tube types and a use method thereof. Background Art

[0002] The SBS cryotube capping machine is an automated or semi-automated device specifically designed to efficiently and accurately tighten or loosen the caps of SBS cryotubes (such as blood sample tubes, urine sample tubes, DNA sample tubes, etc.). It uses a robotic arm or rotating mechanism, combined with a precise control system, to automatically complete the grabbing, positioning, capping, and releasing of test tubes, greatly improving the efficiency and accuracy of sample processing processes in laboratories, hospitals, biotechnology companies, pharmaceutical companies, and other places.

[0003] During the experimental operation, there are many SBS cryopreservation tubes. The traditional manual method of opening and closing the caps is a huge workload. At the same time, manual operation also has the risk of loose capping, damage to the test tube, and spillage of the liquid in the test tube. In addition, the existing rotary head can only be used for test tubes of a certain diameter, which has relatively high size requirements.

[0004] In view of the above situation, it is necessary to improve the existing automatic capping mechanism so that it can adapt to the current needs of using the capping of SBS cryopreservation tubes. Summary of the Invention

[0005] The technical solution of the present invention for achieving the above-mentioned purpose is to provide an automatic capping workstation for cryopreservation tubes that is compatible with various tube types, including a base plate, a test tube rack placement mechanism arranged on the base plate, a support mechanism arranged on the base plate, a power control mechanism arranged on the support mechanism, a first movable plate connected to the power control mechanism, a second movable plate connected to the power control mechanism, a fixed plate arranged below the second movable plate, a plurality of internal screw mechanisms arranged on the first movable plate and the second movable plate, and a rotating head arranged below the fixed plate and connected to the internal screw mechanism, the test tube rack placement mechanism is installed on the base plate, one end of the support mechanism is fixedly installed on the base plate, the power control mechanism is installed on the support mechanism, the first movable plate and the second movable plate are connected to the power control mechanism, and the internal screw mechanism is connected to the first movable plate and the second movable plate.

[0006] As a further supplement to the present technical solution, the test tube rack placement mechanism includes a longitudinal moving mechanism and a placement plate connected to the longitudinal moving mechanism, and the longitudinal moving mechanism is fixedly mounted on the bottom plate.

[0007] As a further supplement to the present technical solution, the support mechanism includes a plurality of first mounting bearings arranged on the base plate, a support shaft arranged on the first mounting bearings, a support plate arranged on the support shaft, and a second mounting bearing arranged on the support plate and the support shaft. The first mounting bearings are fixedly mounted on the base plate, the support shaft is mounted on the first mounting bearings, and the support plate is fixedly mounted on the top of the support shaft.

[0008] As a further supplement to the present technical solution, the power control mechanism includes a motor, a driving gear connected to the motor, a plurality of driven gears arranged on a fixed plate, and an external screw mechanism connected to the driven gears, the driving gear and the driven gears are connected by a chain, and the motor is fixedly mounted on the support plate.

[0009] As a further supplement to the present technical solution, the external screw mechanism includes an external screw and an external nut connected to the external screw, one end of the external screw is connected to the driven gear, and the external nut is installed on the first movable plate and the second movable plate.

[0010] As a further supplement to the present technical solution, the internal screw mechanism includes an internal screw and an internal nut connected to the internal screw, the internal nut is fixedly mounted on the first movable plate and the second movable plate, and the internal screw passes through the upper and lower surfaces of the first movable plate, the second movable plate and the fixed plate.

[0011] As a further supplement to the present technical solution, the top of the rotating head is hollow and the inner screw is connected to it and can control its rotation, and the bottom of the rotating head is conical.

[0012] As a further supplement to the technical solution, a plurality of clearance grooves are provided in the circumferential direction of the bottom of the rotating head.

[0013] As a further supplement to the technical solution, the number of the internal screw mechanisms is the same as the number of the test tube slots on the test tube rack.

[0014] A method for using an automatic capping workstation for cryopreservation tubes that is compatible with multiple tube types includes the following steps: first, placing a test tube rack containing test tubes on a test tube rack placement mechanism; then controlling a power control mechanism and an internal screw mechanism to operate to complete the operations of opening, removing, grabbing, and closing the product caps.

[0015] Its beneficial effect is that it can well complete the operations of opening, removing, grabbing and closing the test tubes on the test tube rack. Each rotating head corresponds to an internal screw mechanism, and the number is the same as the test tube slots on the test tube rack, so the operation is more precise and the use effect is better. In addition, the rotating head is designed to operate test tube caps with a size difference of more than 1 mm, and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of the present invention from a first angle;

[0017] Figure 2 This is a second-angle overall structural diagram of the present invention;

[0018] Figure 3 is a cross-sectional view of the present invention;

[0019] Figure 4-14 It is a structural schematic diagram of the rotary head of the present invention;

[0020] In the figure, 1. base plate; 2. test tube rack placement mechanism; 21. longitudinal moving mechanism; 22. placement plate; 3. support mechanism; 31. first mounting bearing; 32. support shaft; 33. support plate; 34. second mounting bearing; 4. power control mechanism; 41. motor; 42. driving gear; 43. driven gear; 44. external screw mechanism; 5. first moving plate; 6. second moving plate; 7. fixed plate; 8. internal screw mechanism; 81. internal screw; 82. internal nut; 9. rotating head; 91. clearance groove. DETAILED DESCRIPTION

[0021] In order to make the technical solution more clear to those skilled in the art, Figure 1-14 The technical solution of the present invention is described in detail:

[0022] A cryopreservation tube automatic capping workstation compatible with various tube types includes a base plate 1, a test tube rack placement mechanism 2 arranged on the base plate 1, a support mechanism 3 arranged on the base plate 1, a power control mechanism 4 arranged on the support mechanism 3, a first movable plate 5 connected to the power control mechanism 4, a second movable plate 6 connected to the power control mechanism 4, a fixed plate 7 arranged below the second movable plate 6, a plurality of internal screw mechanisms 8 arranged on the first movable plate 5 and the second movable plate 6, and a rotating head 9 arranged below the fixed plate 7 and connected to the internal screw mechanism 81. The test tube rack placement mechanism 2 is installed on the base plate 1, one end of the support mechanism 3 is fixedly installed on the base plate 1, and the power control mechanism 4 is connected to the power control mechanism 4. The mechanism 4 is installed on the supporting mechanism 3, the first movable plate 5 and the second movable plate 6 are connected to the power control mechanism 4, and the inner screw rod 81 mechanism 8 is connected to the first movable plate 5 and the second movable plate 6; the bottom plate 1 can support the test tube rack placement mechanism 2, and the test tube rack placement mechanism 2 is used to place the test tube rack, so that the rotating head 9 can open, remove, grab and close the test tubes on the test tube rack; the supporting mechanism 3 can support the power control mechanism 4, and the power control mechanism 4 can rotate the head 9 to complete the opening, removing, grabbing and closing operations on the test tubes, and the inner screw rod mechanism 8 can further assist the rotating head 9 to better complete the opening, removing, grabbing and closing operations.

[0023] The structure of the test tube rack placement mechanism 2 will be described in detail below. The test tube rack placement mechanism 2 includes a longitudinal moving mechanism 21 and a placement plate 22 connected to the longitudinal moving mechanism 21. The longitudinal moving mechanism 21 is fixedly mounted on the base plate 1. The placement plate 22 facilitates the placement of the test tube rack. The longitudinal moving mechanism 21 can adjust the position of the placement plate 22 to facilitate the rotary head 9 to better open, remove, grab, and close the test tube caps on the test tube rack.

[0024] The structure of the support mechanism 3 will be explained in detail below. The support mechanism 3 includes a plurality of first mounting bearings 31 arranged on the base plate 1, a support shaft 32 arranged on the first mounting bearings 31, a support plate 33 arranged on the support shaft 32, and a second mounting bearing 34 arranged on the support plate 33 and the support shaft 32. The first mounting bearing 31 is fixedly mounted on the base plate 1, the support shaft 32 is mounted on the first mounting bearing 31, and the support plate 33 is fixedly mounted on the top of the support shaft 32. The power control mechanism 4 is mounted on the support plate 33, which can support the power control mechanism 4.

[0025] The structure of the power control mechanism 4 will be described in detail below. The power control mechanism 4 includes a motor 41, a driving gear 42 connected to the motor 41, a plurality of driven gears 43 provided on the fixed plate 7, and an external screw mechanism 44 connected to the driven gear 43. The driving gear 42 and the driven gear 43 are connected by a chain, and the motor 41 is fixedly mounted on the support plate 33; the motor 41 can control the rotation of the driving gear 42, and the rotation of the driving gear 42 can drive the driven gear 43 to rotate through the chain. The rotation of the driven gear 43 can control the operation of the external screw mechanism 44, and the operation of the external screw mechanism 44 can control the operation of the internal screw mechanism 8, thereby driving the rotating head 9 to work, thereby completing the opening, removing, grabbing and closing operations of the test tube cover.

[0026] The structure of the external screw mechanism 44 will be explained in detail below. The external screw mechanism 44 includes an external screw and an external nut connected to the external screw. One end of the external screw is connected to the driven gear 43. The external nut is installed on the first movable plate 5 and the second movable plate 6. The rotation of the driven gear 43 can drive the external screw to rotate, and then the axial movement of the first movable plate 5 and the second movable plate 6 is realized through the external nut.

[0027] The structure of the inner screw mechanism 8 will be explained in detail below. The inner screw mechanism 8 includes an inner screw 81 and an inner nut 82 connected to the inner screw 81. The inner nut 82 is fixedly mounted on the first movable plate 5 and the second movable plate 6. The inner screw 81 passes through the upper and lower surfaces of the first movable plate 5, the second movable plate 6 and the fixed plate 7. The axial movement of the first movable plate 5 can drive the axial movement of the inner nut 82, and then drive the inner screw 81 to rotate, thereby realizing control of the rotating head 9, making it easier for the rotating head 9 to better open, remove, grab and close the test tube; wherein, the number of the inner screw mechanisms 8 is the same as the number of test tube slots on the test tube rack.

[0028] In which, the top of the rotating head is hollow and the inner screw is connected to it and can control its rotation, and the bottom of the rotating head 9 is conical; the rotating head 9 includes an inner rod and an outer shell, the inner rod is connected to the inner screw, and the inner rod does not contact the outer shell; the inner rod and the bottom of the outer shell are both conical, and when working, the inner screw 81 controls the inner rod to pass through the rotating head 9 to open the rotating head 9, and its adjustment size is controlled according to the depth of the cone; this technical solution can achieve compatibility with test tubes with a tube cap size difference of more than 1mm; when the inner rod is adjusted to the bottom of the outer shell and contacts it, the rotation of the inner rod can drive the outer shell to rotate through friction, thereby realizing the opening, removal, grabbing and closing operations of the cover; wherein, a plurality of makeshift grooves 91 are opened in the circumferential direction of the inner rod and the outer shell, which is convenient for better opening the outer shell and completing the opening, removal, grabbing and closing operations of the test tube cover.

[0029] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Any changes that may be made to certain parts thereof by those skilled in the art all reflect the principles of the present invention and fall within the scope of protection of the present invention.

Claims

1. An automatic capping workstation for cryopreservation tubes compatible with various tube types, characterized in that: The invention comprises a base plate (1), a test tube rack placement mechanism (2) arranged on the base plate (1), a support mechanism (3) arranged on the base plate (1), a power control mechanism (4) arranged on the support mechanism (3), a first movable plate (5) connected to the power control mechanism (4), a second movable plate (6) connected to the power control mechanism (4), a fixed plate (7) arranged below the second movable plate (6), a plurality of inner screw mechanisms (8) arranged on the first movable plate (5) and the second movable plate (6), and a rotating head (9) arranged below the fixed plate (7) and connected to the inner screw mechanisms (8), wherein the test tube rack placement mechanism (2) is mounted on the base plate (1), one end of the support mechanism (3) is fixedly mounted on the base plate (1), the power control mechanism (4) is mounted on the support mechanism (3), the first movable plate (5) and the second movable plate (6) are connected to the power control mechanism (4), and the inner screw mechanism (8) is connected to the first movable plate (5) and the second movable plate (6).

2. The automatic capping workstation for cryopreservation tubes compatible with various tube types according to claim 1, characterized in that: The test tube rack placement mechanism (2) comprises a longitudinal moving mechanism (21) and a placement plate (22) connected to the longitudinal moving mechanism (21); the longitudinal moving mechanism (21) is fixedly mounted on the bottom plate (1).

3. The automatic capping workstation for cryopreservation tubes compatible with various tube types according to claim 2, characterized in that: The support mechanism (3) comprises a plurality of first mounting bearings (31) arranged on the base plate (1), a support shaft (32) arranged on the first mounting bearings (31), a support plate (33) arranged on the support shaft (32), and a second mounting bearing (34) arranged on the support plate (33) and the support shaft (32); the first mounting bearings (31) are fixedly mounted on the base plate (1), the support shaft (32) is mounted on the first mounting bearings (31), and the support plate (33) is fixedly mounted on the top of the support shaft (32).

4. The automatic capping workstation for cryopreservation tubes compatible with various tube types according to claim 1, characterized in that: The power control mechanism (4) comprises a motor (41), a driving gear (42) connected to the motor (41), a plurality of driven gears (43) arranged on a support plate (33), and an external screw mechanism (44) connected to the driven gears (43); the driving gear (42) and the driven gears (43) are connected via a chain, and the motor (41) is fixedly mounted on the support plate (33).

5. The automatic capping workstation for cryopreservation tubes compatible with various tube types according to claim 4, characterized in that: The external screw mechanism (44) comprises an external screw and an external nut connected to the external screw. One end of the external screw is connected to a driven gear (43). The external nut is mounted on a first movable plate (5) and a second movable plate (6).

6. The automatic capping workstation for cryopreservation tubes compatible with various tube types according to claim 1, characterized in that: The inner screw mechanism (8) comprises an inner screw (81) and an inner nut (82) connected to the inner screw (81); the inner nut (82) is fixedly mounted on the first movable plate (5) and the second movable plate (6); and the inner screw (81) passes through the upper and lower surfaces of the first movable plate (5), the second movable plate (6) and the fixed plate (7).

7. The automatic capping workstation for cryopreservation tubes compatible with various tube types according to claim 1, characterized in that: The top of the rotating head (9) is hollow and the inner screw (81) is connected to it and can control its rotation, and the bottom of the rotating head (9) is conical.

8. The automatic capping workstation for cryopreservation tubes compatible with various tube types according to claim 7, characterized in that: A plurality of clearance grooves (91) are provided in the circumferential direction of the bottom of the rotating head (9).

9. The automatic capping workstation for cryopreservation tubes compatible with various tube types according to claim 1, characterized in that: The number of the inner screw mechanisms (8) is the same as the number of the test tube slots on the test tube rack.

10. A method for using the automatic capping workstation for cryopreservation tubes compatible with various tube types according to any one of claims 1 to 9, characterized in that: The following steps are involved: Firstly, a test tube rack containing test tubes is placed on the test tube rack placement mechanism (2), and then the power control mechanism (4) and the inner screw mechanism (8) are controlled to work to complete the operations of opening, removing, grabbing and closing the product cover.

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