A medical test tube capping and uncapping machine

By designing a medical test tube cap opening and capping machine, the coordinated work of mobile components and clamping components is used to realize the automatic disassembly and assembly of the test tube cap, solving the problems of liquid oscillation and inconvenience in manual operation, and improving work efficiency and safety.

CN115535938BActive Publication Date: 2025-08-12JIANGSU UNIV OF SCI & TECH
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Patent Information

Application Number
CN202211239866.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-11
Publication Date
2025-08-12
Estimated Expiration
2042-10-11

AI Technical Summary

Technical Problem

When medical staff manually open the test tube cap, they are prone to cause liquid to vibrate or spill due to improper force application, and it is inconvenient to operate both hands, which affects work efficiency, especially when there is a safety risk during viral testing.

Method used

A medical test tube cap opening and capping machine is designed, including installation chassis, execution components and rotary components. Through the coordinated working of the moving components and clamping components, the automatic disassembly and assembly of the test tube cap is realized, and the multi-degree of freedom movement of the foam disc rotation and clamping components are used to ensure stable operation.

Benefits of technology

It improves the operating efficiency of the test tube cap, avoids the spill of liquid, reduces the risk of pollution to the environment, and enhances the safety and convenience of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a medical test tube capping and uncapping machine, which belongs to the field of medical equipment and comprises: a mounting chassis, an execution component, a rotating component and a temporary storage component for fixing the test tube; the rotating component comprises: a foam tray, the foam tray is provided with a plurality of sockets for placing the test tubes, and the foam tray is rotatably arranged on one side of the mounting chassis; the execution component comprises: a moving component and a clamping component, the clamping component is connected to the moving component, and the moving component is fixedly supported on the mounting chassis; the temporary storage component is fixedly supported on the other side of the mounting chassis; the moving component drives the clamping component to move so that the test tube on the foam tray is transferred to the temporary storage component, and the moving component and the clamping component work together to disassemble and install the cap on the test tube. The present invention solves the defects of traditional manual disassembly and installation of the test tube cover, such as spillage and vibration of the test liquid in the test tube due to unstable hand force, and also significantly improves the detection efficiency.
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Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a medical test tube capping and uncapping machine. Background Art

[0002] In the medical field, medical staff often test some liquids (blood, urine), so medical staff will frequently open and close the caps of test tubes. This method is cumbersome and has extremely low work efficiency. When a large number of test tubes are tested, it is also a test of the physical fitness of the test personnel. Sometimes the test tube caps are closed tightly, and negative pressure is formed in the test tube. Medical staff hold the test tube in one hand and open the cap with the other hand. If the strength is not well controlled, liquid vibration will occur, and even liquid will be spilled outside the test tube, causing certain pollution to the test environment. For example, when conducting viral tests such as new coronavirus pneumonia, the spillage of test liquid poses a great threat to medical staff. In addition, when the test personnel hold the test tube in one hand and the straw in the other hand, this will also bring great inconvenience to the opening and closing of the test tube cap.

[0003] Patent document CN206828052U discloses a microbial sample test tube processing device, which uses an electric clamp to drive the test tube cover to spirally open and close, avoiding the unexpected situation caused by the vertical motion electric cylinder not having a power-off self-locking function. However, this device requires the test tubes to be placed into the device one by one for opening and closing the cover. This operation method reduces the working speed and affects work efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a medical test tube capping and uncapping machine to solve the problem in the prior art that medical staff manually open the test tube cap and apply improper force, which may cause liquid vibration or spillage outside the test tube. At the same time, the medical staff has to hold the testing instrument with both hands, which makes it inconvenient to remove and install the cap.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions: a medical test tube capping and uncapping machine, comprising: a mounting chassis, an execution component, a rotating component, and a temporary storage component for fixing the test tube;

[0006] The rotating component includes: a foam plate, the foam plate is provided with a plurality of sockets for placing test tubes, and the foam plate is rotatably arranged on one side of the mounting base;

[0007] The execution component includes: a moving component and a clamping component, the clamping component is connected to the moving component, and the moving component is fixedly supported on the mounting chassis;

[0008] The temporary storage component is fixedly supported on the other side of the mounting chassis;

[0009] The moving component drives the clamping component to move so that the test tubes on the foam tray are transferred to the temporary storage component. The moving component and the clamping component work together to remove and install the caps on the test tubes.

[0010] According to a further embodiment of the present invention, a turntable is provided at the bottom of the foam tray, which comprises an I-shaped support platform and an annular turntable, wherein the inner side of the annular turntable is symmetrically processed with open grooves, and the annular turntable is rotatably arranged on the surface of the I-shaped support platform;

[0011] A first driving part is provided inside the I-shaped support platform, and the first driving part is connected to the annular turntable to drive the turntable to rotate.

[0012] A further solution is that the first driving part includes: a No. 1 stepper motor, which is installed in the inner cavity of the I-shaped support platform through a motor mounting plate, and the output shaft of the No. 1 stepper motor is connected to the open groove on the inner side of the annular turntable through a driving rod, and the foam plate is placed in the annular turntable. In actual production, a flange is provided on the upper surface of the turntable to facilitate the placement of the foam plate.

[0013] According to a further solution of the present invention, the moving assembly consists of a horizontal feed kit and a vertical feed kit, the horizontal feed kit is fixedly supported on the mounting chassis by an L-shaped support column, and the vertical feed kit is vertically installed on the horizontal feed kit, and the clamping assembly is fixed on the vertical feed kit. When the moving assembly is started, the vertical feed kit controls the clamping assembly to produce longitudinal displacement, and the horizontal feed kit controls the vertical feed kit and the clamping assembly to produce lateral displacement.

[0014] A further solution is that the horizontal feed kit includes: a base; a screw is installed in the middle of the base through a seat bearing, one end of the screw is connected to a No. 2 stepper motor, a drive plate is slidably provided on the static guide rails on the side surfaces of the base on both sides of the screw, and a nut is also installed on the screw, the nut is fixedly connected to the drive plate, and when the No. 2 stepper motor moves, the screw rotates to drive the nut and the drive plate to produce linear displacement.

[0015] A further solution is that the horizontal feed kit has the same structure as the vertical feed kit, and the drive plates of the two are vertically connected. In actual production, considering later maintenance and repair, the drive plates of the two are fixedly connected using fastening bolts, and the clamping assembly is fixed to the base of the vertical feed kit through an L-shaped mounting plate.

[0016] According to a further embodiment of the present invention, the clamping assembly includes: a mounting base and a receiving barrel, wherein the receiving barrel is fixedly connected to the upper surface of the mounting base;

[0017] The bottom of the mounting seat is movably connected with N claws at equal intervals in the circumferential direction through telescopic springs, where N is a natural number greater than or equal to 4. A claw mounting groove is provided at the bottom of the mounting seat, and a spring mounting hole is processed on the side of the claw mounting groove close to the center of the mounting seat. The telescopic spring is placed in the spring mounting hole to connect the mounting seat and the claw. On the premise that the clamping assembly can clamp the test tube, considering simplifying the device structure and reducing production costs, the number of claws is determined to be 4 during the design, and forming fingers are clamped at the bottom of the claws. A layer of rubber is pasted on the surface of the forming fingers, and a number of protrusions are arranged on the surface of the rubber. A second driving unit is installed in the receiving barrel to adjust the spacing between the forming fingers.

[0018] In a further embodiment, the second driving unit includes: a stepping motor, a plurality of elastic traction ropes;

[0019] The stepper motor is installed in the inner cavity of the receiving barrel, and the output shaft of the stepper motor passes through the bottom plate of the receiving barrel. The output shaft of the stepper motor is equipped with a drag disc through a hollow screw, and one end of the elastic traction rope is correspondingly connected to the drag disc, and the other end passes through the bottom of the mounting seat and the telescopic spring in sequence to connect to the hand claw. In actual operation, 4 rope guide grooves are evenly arranged on the bottom of the mounting seat, and 4 rope holes are opened on the bottom wall of the spring mounting hole. The rope holes and the corresponding rope guide grooves are connected. One end of the elastic traction rope is fixed on the hand claw, and the other end passes through the telescopic spring, the rope hole, the rope guide groove in sequence and is connected to the drag disc.

[0020] In a further solution, a plurality of limiting grooves are provided at the circumferential edge of the drag disc, and a plurality of guide strips are provided on the inner wall of the cavity of the mounting seat, and the limiting grooves cooperate with the guide strips for limiting.

[0021] The clamping assembly has the same structure as the temporary storage component.

[0022] According to the above technical solution, the present invention has at least the following beneficial effects:

[0023] 1) The mobile assembly designed in the present invention can drive the clamping assembly to move and clamp the test tube to the temporary storage component for fixation. The mobile assembly then controls the clamping assembly to move up and down. The clamping assembly can remove and install the cap on the test tube mouth. The integrated design of test tube capping and capping enhances the practicality of the device. At the same time, the coordinated cooperation of the clamping assembly, mobile assembly and temporary storage component can stably remove and install the test tube cap.

[0024] 2) The turntable's annular turntable rotates on the upper surface of the I-shaped support platform driven by a drive rod. During the rotation of the annular turntable, the driving force it receives is symmetrical on both sides. Compared with traditional rotation driven by a unilateral force, this greatly reduces the vibration generated during the rotation of the annular turntable and effectively prevents the spillage of reagents in the test tubes placed on it.

[0025] 3) A layer of rubber is pasted on the surface of the forming finger. Several bumps are arranged on the rubber surface to increase its friction coefficient, ensuring that the test tube can be grasped with less pressure to avoid crushing the test tube.

[0026] 4) Under the action of the drag force of the elastic traction rope, the claws move closer to the center, thereby changing the spacing between the forming fingers and clamping the test tube. Due to the elasticity of the elastic traction rope, it can effectively avoid crushing the test tube and prevent the test tube from being unable to be clamped.

[0027] 5) During the clamping process, the forming fingers move vertically downward to clamp the test tube longitudinally and cooperate with the rotatable foam tray. Compared with the traditional horizontal clamping solution of the manipulator, it can effectively save space, realize high-density storage of test tubes on the foam tray, and increase work efficiency.

[0028] 6) By clamping the test tube with four fingers, compared with the traditional two-claw robot, the test tube is prevented from deformation due to uneven force, which may cause the reagent in the test tube to spill during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of an automatic capping and uncapping machine for medical test tubes;

[0030] Figure 2 It is a schematic diagram of the structure of the rotating component;

[0031] Figure 3 Schematic diagram of the turntable structure;

[0032] Figure 4 This is a cross-sectional view of the turntable;

[0033] Figure 5 Schematic diagram of the execution component structure;

[0034] Figure 6 This is a schematic diagram of the horizontal feed kit structure;

[0035] Figure 7 Schematic diagram of the clamping assembly structure;

[0036] Figure 8 is a cross-sectional view of the clamping assembly;

[0037] Figure 9 Schematic diagram of the mounting base structure;

[0038] Figure 10 This is a cross-sectional view of the mounting base;

[0039] Figure 11 Schematic diagram of the gripper structure;

[0040] Figure 12 This is a schematic diagram of the clamping assembly principle;

[0041] in:

[0042] 1 Rotating part, 2 Actuating part, 3 Temporary storage part, 4 Mounting chassis, 5 Test tube, 6 Cap

[0043] 11 turntable, 12 foam tray

[0044] 111 I-shaped support table, 112 No. 1 stepper motor, 113 motor mounting plate, 114 drive rod, 115 ball bearing, 116 ring turntable

[0045] 21L support column, 22 horizontal feed kit, 23 vertical feed kit, 24L mounting plate, 25 clamping assembly

[0046] 221 base, 222 static guide rail, 223 lead screw, 224 drive plate, 225 No. 2 stepper motor, slider 226

[0047] 251 forming finger, 252 hand claw, 253 drag disc, 254 hollow screw, 255 mounting seat, 256 stepping motor, 257 receiving barrel, 258 elastic traction rope, 259 telescopic spring

[0048] 252.1 No. 1 buckle, 252.2 Finger mounting slot, 253.1 No. 2 buckle

[0049] 255.1 Hand claw mounting slot, 255.2 Rope guide slot, 255.3 Guide strip, 255.4 Spring mounting hole, 255.5 Rope hole. DETAILED DESCRIPTION

[0050] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0051] like Figure 1 As shown, a medical test tube capping and uncapping machine includes a rotating component 1, an actuator 2, a temporary storage component 3, and a mounting base 4. The rotating component 1 is mounted on one side of the mounting base 4, the temporary storage component 3 is mounted on the other side of the mounting base 4, and the actuator 2 is mounted between the rotating component 1 and the temporary storage component 3. Several test tubes 5 are placed on the rotating component 1. The actuator 2 sequentially grabs each test tube 5 placed on the rotating component 1, places them in the temporary storage component 3, and removes their caps 6. After sample collection is completed, the actuator 2 recaps the test tubes 5 and returns them to the rotating component 1.

[0052] like Figure 2 As shown, the rotating component 1 includes a turntable 11 and a foam plate 12. The foam plate 12 is placed on the turntable and moves in a circular motion driven by the turntable 11. Several sockets are processed on the foam plate 12 for placing test tubes 5.

[0053] like Figure 3 and Figure 4 As shown, the turntable 11 includes an I-shaped support platform 111, a number one stepper motor 112, a drive rod 114, and an annular turntable 116. The number one stepper motor 112 is mounted in a hollow tube in the center of the I-shaped support platform 111 via a motor mounting plate 113. The annular turntable 116 is rotatably mounted on the upper surface of the I-shaped support platform 111 via a ball bearing 115. The annular turntable 116 is machined with an open groove that aligns with the drive rod 114. The upper surface of the turntable 116 has a flange to facilitate the placement of the foam disk 12. The drive rod 114 is mounted on the output shaft of the number one stepper motor 112 and mates with the open groove of the annular turntable 116. When the output shaft of the number one stepper motor 112 rotates, the drive rod 114 drives the annular turntable 116 to rotate on the upper surface of the I-shaped support platform 111, thereby driving the foam disk 12 placed on the annular turntable 116 to rotate.

[0054] like Figure 5 As shown, the actuator 2 includes an L-shaped support column 21, a horizontal feed kit 22, a vertical feed kit 23, and a clamping assembly 25. The horizontal feed kit 22 is installed on the top of the vertical surface of the L-shaped support column 21, and the vertical feed kit 23 is installed on the horizontal feed kit 22. The two cooperate with each other to form a two-degree-of-freedom moving assembly. The clamping assembly 25 is installed at the bottom of the vertical feed kit 23 through the L-shaped mounting plate 24. Driven by the two-degree-of-freedom moving assembly, it can move in the horizontal and vertical directions.

[0055] like Figure 6 As shown, the horizontal feed kit 22 includes a base 221 , a static guide rail 222 , a lead screw 223 , a drive plate 224 , a second stepper motor 225 , and a slider 226 . Screw 223 is mounted in the center of base 221 via a seated bearing. Two static guide rails 223 are mounted parallel to each other on base 221. Two static guide rails 222 are symmetrically located on either side of screw 223. Stepper motor 225 is mounted at the top center of base 221. The output shaft of stepper motor 225 is connected to screw 223 via a coupling. A nut (omitted in the figure) is mounted on screw 223. Static guide rail 222 is mounted on slider 226. Drive plate 224 is mounted on slider 226 and is fixedly connected to the nut mounted on screw 223. When stepper motor 225 rotates, the drive plate 224 is driven horizontally along static guide rail 222 via the screw-nut mechanism. The vertical feed assembly 23 shares the same structure as the horizontal feed assembly 22. Vertical feed assembly 23 is mounted on drive plate 224 of horizontal feed assembly 22 via the drive plate, forming a cross-shaped two-degree-of-freedom motion assembly.

[0056] like Figures 7 and 8As shown, the gripping assembly 25 comprises a forming finger 251, a gripper 252, a drag disc 253, a hollow lead screw 254, a mounting base 255, a stepper motor 256, and a receiving barrel 257. The forming finger 251 is coated with a rubber layer with several raised bumps to increase its friction coefficient, ensuring a firm grip on the test tube with minimal pressure and preventing crushing. The drag disc 253 has an internally threaded through-hole at its center and two guide grooves along its outer edge along its diameter. A second buckle 253.1 is located on its bottom surface for connecting one end of an elastic traction rope 258.

[0057] like Figure 9 and Figure 10 As shown, four I-shaped hand claw mounting grooves 255.1 are evenly distributed around the bottom of the mounting seat 255, which are used to install the hand claw 252. The bottom surface of the hand claw mounting groove 255.1 is processed with spring mounting holes 255.4 and rope holes 255.5 from the outside to the inside, which are used to install the telescopic spring 259 and the elastic traction rope 258 respectively. The bottom surface of the mounting seat 255 is processed with a through hole, and four rope guide grooves 255.2 are evenly distributed around the through hole. The positions of the rope guide grooves 255.2 correspond one to one to the positions of the rope holes 255.5. A guide strip 255.3 is processed on the upper inner wall of the mounting seat 255.

[0058] like Figure 11 As shown, the cross section of the gripper 252 is I-shaped, one end of which is welded with a No. 1 buckle 252.1 for connecting one end of the elastic traction rope 258, and the bottom surface of the gripper 252 is provided with a finger mounting groove 252.2 for mounting the forming finger 251.

[0059] like Figures 7 to 11As shown, the top surface of the mounting base 255 and the bottom surface of the receiving barrel 257 are connected together by screws to form the frame of the clamping assembly 25. A stepper motor 256 is mounted within the inner cavity of the receiving barrel 257, with its output shaft extending through a central through-hole in the bottom surface of the receiving barrel 257. A hollow lead screw 254 is mounted on the output shaft of the stepper motor 256. A drag disc 253 is mounted within the inner cavity of the mounting base 255, with its guide groove mating with a guide strip 255.3 on the upper inner wall of the mounting base 255. The hollow lead screw 254, mounted on the output shaft of the stepper motor 256, mates with the internally threaded through-hole in the center of the drag disc 253. When the output shaft of the stepper motor 256 rotates, the lead screw nut mechanism formed by the internally threaded through-hole in the center of the drag disc 253 and the hollow lead screw mounted on the output shaft of the stepper motor 256 drives the drag disc 253 to move up and down along the guide strip 255.3. The four grippers 252 are respectively installed in the finger mounting grooves 255.1 evenly distributed around the bottom of the mounting base 255. A telescopic spring 259 is installed between the grippers 252 and the bottom surface of the gripper mounting groove 255.1. One end of the elastic traction rope 258 is fixed on the No. 1 buckle 252.1 of the gripper 252, and passes through the telescopic spring 259, the rope hole 255.5, and the rope guide groove 255.2 in sequence. The other end is installed on the No. 2 buckle 253.1 of the drag disc 253.

[0060] like Figure 12 As shown, under the drive of the stepper motor, when the drag disc 253 moves upward along the guide bar 255.3, the claws 252 move toward the center under the action of the drag force of the elastic traction rope 258, thereby changing the spacing of the forming fingers 251 and clamping the test tube; under the drive of the stepper motor, when the drag disc 253 moves downward along the guide block 255.3, under the action of the telescopic spring 259, the claws 252 spread out to the surroundings, thereby increasing the spacing of the forming fingers 251 and releasing the clamping of the test tube.

[0061] The temporary storage unit 3 includes an I-shaped support platform and a clamping assembly, which is mounted on the top surface of the I-shaped support platform. The clamping assembly has the same structure as the clamping assembly 25 of the execution unit. The temporary storage unit 3 and the execution unit 2 cooperate to complete the opening and closing of the test tube cap.

[0062] The working process of this embodiment is as follows:

[0063] 1) The output shaft of the first stepper motor 112 rotates, driving the annular turntable 116 to rotate on the upper surface of the I-shaped support platform 111 through the drive rod 114, thereby driving the foam disk 12 placed on the annular turntable 116 to rotate until the test tube 5 to be uncapped rotates to a specific position.

[0064] 2) The horizontal feed assembly 22 drives the clamping assembly 25 installed at the bottom of the vertical feed assembly 23 to move to the top of the test tube 5 to be uncapped.

[0065] 3) The vertical feed assembly 23 drives the clamping assembly 25 installed at the bottom of the vertical feed assembly 23 to move downward until the forming fingers of the clamping assembly 25 completely surround the cap 6 of the test tube 5 to be opened.

[0066] 4) The stepper motor 256 starts, dragging the disc 253 upward along the guide bar 255.3. Under the drag force of the elastic traction rope 258, the claws 252 move toward the center, changing the spacing between the forming fingers 251 and clamping the cap 6 on the test tube 5.

[0067] 5) The vertical feeding assembly 23 drives the clamping assembly 25 installed at the bottom of the vertical feeding assembly 23 to move upward until the test tube 5 completely leaves the foam board 12.

[0068] 6) The horizontal feed assembly 22 drives the clamping assembly 25 installed at the bottom of the vertical feed assembly 23 to move to the top of the clamping assembly of the temporary storage assembly 3.

[0069] 7) The vertical feed assembly 23 drives the clamping assembly 25 installed at the bottom of the vertical feed assembly 23 to move downward again until the forming fingers of the clamping assembly of the temporary storage component 3 completely surround the lower end of the test tube 5.

[0070] 8) The forming fingers of the temporary storage component 3 clamp the lower end of the test tube 5, and the vertical feed assembly 23 drives the clamping assembly 25 installed at the bottom of the vertical feed assembly 23 to move upward again until the cap 6 is pulled out.

[0071] 9) After the medical staff completes the collection of reagents from the test tube 6 in the clamping assembly of the temporary storage part 3, the vertical feed kit 23 drives the clamping assembly 25 installed at the bottom of the vertical feed kit 23 to move downward again until the cap 6 is buckled onto the test tube 5 in the clamping assembly of the temporary storage part 3.

[0072] 10) The clamping assembly of the temporary storage component 3 releases the clamping of the test tube 6, and the two-degree-of-freedom moving assembly drives the test tube 5 to move, and the test tube 5 is placed back into the original test tube socket of the foam tray 12.

[0073] It is understood from common technical knowledge that the present invention may be implemented by other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. An automatic capping and uncapping machine for medical test tubes, characterized in that: include: Installing a chassis (4), an executive component (2), a rotating component (1), and a temporary storage component (3) for fixing a test tube (5); The rotating component (1) comprises: a foam plate (12), the foam plate (12) being provided with a plurality of sockets for placing test tubes (5), and the foam plate (12) being rotatably arranged on one side of the mounting base (4); The execution component (2) comprises: a moving component and a clamping component (25), the clamping component (25) is connected to the moving component, and the moving component is fixedly supported on the mounting chassis (4); The temporary storage component (3) is fixedly supported on the other side of the mounting chassis (4); The moving assembly drives the clamping assembly (25) to move so that the test tube (5) on the foam tray (12) is transferred to the temporary storage component (3). The moving assembly and the clamping assembly (25) cooperate to disassemble and install the cap (6) on the test tube (5); The clamping assembly (25) comprises: a mounting seat (255) and a receiving barrel (257), wherein the receiving barrel (257) is fixedly connected to the upper surface of the mounting seat (255); The bottom of the mounting seat (255) is movably connected to N claws (252) at equal intervals in the circumferential direction via telescopic springs (259), where N is a natural number greater than or equal to 4. The bottom of the claws (252) is clamped with a forming finger (251), and a layer of rubber is adhered to the surface of the forming finger (251), and a plurality of protrusions are arranged on the surface of the rubber. A second driving unit is installed in the receiving barrel (257) for adjusting the spacing between the forming fingers (251); The second driving unit includes: a stepping motor (256), a plurality of elastic traction ropes (258); The stepper motor (256) is installed in the inner cavity of the receiving barrel (257), and the output shaft of the stepper motor (256) passes through the bottom plate of the receiving barrel (257). The output shaft of the stepper motor (256) is matched with a drag disc (253) through a hollow screw (254), and one end of the elastic traction rope (258) is correspondingly connected to the drag disc (253), and the other end thereof passes through the bottom of the mounting seat (255) and the telescopic spring (259) in sequence to connect to the hand claw (252); A plurality of limiting grooves are provided at the circumferential edge of the drag disc (253), and a plurality of guide strips (255.3) are provided on the inner wall of the cavity of the mounting seat (255), wherein the limiting grooves cooperate with the guide strips (255.3) for limiting.

2. The automatic capping and uncapping machine for medical test tubes according to claim 1, characterized in that: A turntable (11) is provided at the bottom of the foam plate (12), comprising an I-shaped support platform (111) and an annular turntable (116), wherein the inner side of the annular turntable (116) is symmetrically provided with opening grooves, and the outer side of the annular turntable (116) is provided with flanges, and the annular turntable (116) is rotatably provided on the surface of the I-shaped support platform (111); A first driving portion is provided inside the I-shaped support platform (111), and the first driving portion is connected to the annular turntable (116) to drive the annular turntable (116) to rotate.

3. The automatic capping and uncapping machine for medical test tubes according to claim 2, characterized in that: The first driving unit comprises: a No. 1 stepper motor (112), the No. 1 stepper motor (112) being mounted in the inner cavity of the I-shaped support platform (111) via a motor mounting plate (113), and the output shaft of the No. 1 stepper motor (112) being connected to an open slot on the inner side of an annular turntable (116) via a driving rod (114), and the foam disk (12) being placed in the annular turntable (116).

4. The automatic capping and uncapping machine for medical test tubes according to claim 1, characterized in that: The moving assembly consists of a horizontal feed assembly (22) and a vertical feed assembly (23), wherein the horizontal feed assembly (22) is fixedly supported on the mounting chassis (4) via an L-shaped support column (21), and the vertical feed assembly (23) is vertically mounted on the horizontal feed assembly (22), and the clamping assembly (25) is fixed on the vertical feed assembly (23).

5. The automatic capping and uncapping machine for medical test tubes according to claim 4, characterized in that: The horizontal feed kit (22) includes: a base (221); a lead screw (223) is installed in the middle of the base (221) through a seat bearing, one end of the lead screw (223) is connected to a second stepping motor (225), and a drive plate (224) is slidably provided on the static guide rails (222) on the side surfaces of the base (221) on both sides of the lead screw (223), and a nut is also installed on the lead screw (223), and the nut is fixedly connected to the drive plate (224).

6. The automatic capping and uncapping machine for medical test tubes according to claim 5, characterized in that: The horizontal feed kit (22) and the vertical feed kit (23) have the same structure, and the drive plates of the two are vertically connected. The clamping assembly (25) is fixed to the base of the vertical feed kit (23) through an L-shaped mounting plate (24).

7. The automatic capping and uncapping machine for medical test tubes according to claim 6, characterized in that: The clamping assembly (25) has the same structure as the temporary storage component (3).

Citation Information

Patent Citations

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