A test tube carrying device

Abstract

The utility model discloses a test tube carrying device, including fixed frame, elevating system, snatch mechanism and positioning ruler, and the horizontal arrangement of fixed frame has the translation rail, and the sliding connection of translation rail has the translation seat, and the translation seat is equipped with the translation power part, and the translation power part is fixedly connected with fixed frame, and elevating system is located in the translation seat, and elevating system is equipped with the lifting seat and the lifting assembly, and the lifting seat is vertically slidably connected with elevating system, and the lifting assembly is used for making the lifting seat rise or drop, and snatch mechanism is located in the lifting seat, and snatch mechanism is used for grabbing the cap of test tube, and positioning ruler is located in fixed frame, and is parallelly arranged with translation rail, and positioning ruler is spaced apart with a plurality of toothed needle along the length direction, and toothed needle and the test tube point position one to one correspondence, when the translation seat is aligned with any one toothed needle, snatch mechanism and corresponding test tube point position are aligned, and are located in the upside of corresponding test tube point position. It can solve the problem that the current test tube carrying device can not find the point position when cooperating with multiple collinear test tube point positions.

Description

Technical Field

[0001] This utility model relates to the field of test tube production technology, specifically to a test tube handling device. Background Technology

[0002] Since test tubes are cylindrical objects with curved bottoms, it is difficult to maintain a uniform position and angle when they are placed normally. Therefore, test tube buffer devices are commonly used to neatly stack and buffer the test tubes produced, so that the test tubes are all vertically inserted into the holes of the buffer device and supported by the caps of the test tubes (the outer diameter of the caps is larger than the outer diameter of the test tubes).

[0003] When subsequent operations such as labeling are required, the test tubes need to be removed from the buffer device and then transported to the starting point of the next process. In order to improve the efficiency of transportation, related test tube transportation devices are generally used to replace manual repetitive operations. However, since the test tube buffer device has multiple tube retrieval points located on the same straight line, in actual transportation, the transportation device often fails to accurately locate the points.

[0004] Therefore, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a test tube handling device that solves the problem that existing test tube handling devices cannot accurately locate multiple collinear tube picking points.

[0006] This invention is achieved through the following technical solution: A test tube handling device includes: a fixed frame for fixed connection to the external environment, a horizontally arranged translation rail on the fixed frame, a translation seat slidably connected to the translation rail, and a translation force component on the translation seat, the translation force component being fixedly connected to the fixed frame; a lifting mechanism disposed on the translation seat, the lifting mechanism comprising a lifting seat and a lifting assembly, the lifting seat being vertically slidably connected to the lifting mechanism, the lifting assembly being used to raise or lower the lifting seat; a gripping mechanism disposed on the lifting seat for gripping the cap of the test tube; and a positioning ruler disposed on the fixed frame and parallel to the translation rail, the positioning ruler having multiple toothed pins spaced apart along its length, each toothed pin corresponding to a tube retrieval point; when the translation seat aligns with any one of the toothed pins, the gripping mechanism aligns with the corresponding tube retrieval point and is located directly above the corresponding tube retrieval point.

[0007] In another preferred embodiment, the translation seat is provided with a distance sensor that cooperates with the toothed needle to detect the vertical distance from the distance sensor to the toothed needle.

[0008] In another preferred embodiment, the gripping mechanism includes a pair of gripping arms, the root of which is horizontally rotatably connected to the lifting seat. The lifting seat is provided with a synchronous drive assembly, which is respectively connected to the two gripping arms so that the tips of the two gripping arms can synchronously move closer or further away from each other. The tips of the gripping arms are provided with semi-hoops, and the two semi-hoops can hug each other. The semi-hoops are used to hold the cap of the test tube.

[0009] In another preferred embodiment, the synchronous drive assembly includes two stepper motors, each corresponding to and connected to the gripping arm, and the two stepper motors rotate synchronously and in opposite directions.

[0010] In another preferred embodiment, the synchronous drive assembly includes a stepper motor, a drive gear, and a driven gear. The stepper motor is connected to the drive gear, the drive gear meshes with the driven gear, the driven gear has the same shape as the drive gear, the drive gear and the driven gear each mesh with a drive gear, the two drive gears have the same shape, and the two drive gears are respectively fixedly connected to the tail ends of the two gripping arms and coaxially arranged.

[0011] In another preferred embodiment, the synchronous drive assembly includes two drive cylinders, each corresponding to one of the gripping arms. The drive cylinders are hinged to the lifting seat shaft, and the push rods of the drive cylinders are hinged to the corresponding gripping arm shafts. The two drive cylinders are symmetrically arranged and extend and retract synchronously.

[0012] In another preferred embodiment, a monitoring plate is provided on the top of the lifting seat, and a third detector is provided on the bottom surface of the monitoring plate. The third detector is used to monitor whether a test tube is held between the two semi-hoops.

[0013] In another preferred embodiment, the end of the monitoring plate away from the lifting seat is tilted upward to form a viewing section, and a fourth detector is provided on the bottom surface of the viewing section. The fourth detector is used to monitor whether a test tube is provided at any tube collection point.

[0014] In another preferred embodiment, the lifting assembly includes a top roller, a bottom roller, and a transmission belt; the top roller and the bottom roller are respectively disposed at the upper and lower parts of the lifting mechanism, the top roller and the bottom roller are located in the same vertical plane and the same vertical line, the top roller or the bottom roller is drivenly connected to a lifting motor, and the lifting motor is fixedly connected to the lifting mechanism; the transmission belt is supported on the top roller and the bottom roller; the lifting seat is fixedly connected to the transmission belt.

[0015] In another preferred embodiment, the top roller and the bottom roller are respectively provided with toothed surfaces of the same shape; the inner surface of the transmission belt is provided with a rack that meshes with the toothed surfaces.

[0016] Because this utility model adopts the above-mentioned technical solution, it has the following positive effects compared with the prior art: This utility model discloses a test tube handling device. It features a fixed frame providing basic structural support and securing it to the external environment. A translation rail, translation seat, and translational force components enable the translation seat to move horizontally within the fixed frame. A lifting mechanism, lifting seat, and lifting assembly, with the lifting mechanism positioned on the translation seat, allow the lifting seat to move up and down relative to the translation seat. A gripping mechanism, positioned on the lifting seat, grips the cap of the test tube, and then the lifting seat raises the test tube to vertically remove it from the hole in the buffer device. The tube is then moved to the starting point of the next process via the translation seat. A positioning ruler with toothed pins aligns with each tube-taking point, providing a reference point for precise positioning of the translation seat's movement distance. This allows the gripping mechanism to smoothly stop directly above the corresponding tube-taking point. Through the coordination of these features, this test tube handling device effectively solves the problem of existing test tube handling devices failing to accurately locate multiple collinear tube-taking points. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a test tube handling device provided by the present invention.

[0018] The attached diagram shows the markings and corresponding component names: 20-Fixed frame; 21-Transfer rail; 22-Transfer seat; 23-Lifting seat; 231-Monitoring plate; 2311-Third detector; 2312-Fourth detector; 24-Positioning ruler; 241-Tooth needle; 25-Grip arm; 251-Half hoop; 26-Top roller; 27-Bottom roller; 28-Transmission belt; 29-Lifting motor. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane". Example

[0022] Please refer to Figure 1 As shown, this embodiment provides a test tube handling device, including: a fixed frame 20, which is used for fixed connection with the external environment; a horizontally arranged translation rail 21 on the fixed frame 20; a translation seat 22 slidably connected to the translation rail 21; and a translation force component (not shown) provided on the translation seat 22, which is fixedly connected to the fixed frame 20. The device also includes a lifting mechanism, which is located on the translation seat 22. The lifting mechanism includes a lifting seat 23 and a lifting assembly. The lifting seat 23 is vertically slidably connected to the lifting mechanism. The third component includes a gripping mechanism located on the lifting seat 23 for gripping the caps of test tubes; the fourth component includes a positioning ruler 24 located on the fixed frame 20 and parallel to the translation rail 21. The positioning ruler 24 has multiple toothed pins 241 spaced apart along its length, and each toothed pin corresponds to a tube-taking point. When the translation seat 22 is aligned with any one of the toothed pins 241, the gripping mechanism is aligned with the corresponding tube-taking point and is located directly above the corresponding tube-taking point.

[0023] The test tube transport device disclosed in this embodiment provides basic structural support and fixes it to the external environment by setting a fixed frame 20; it enables the translational seat 22 to move horizontally and orientably within the fixed frame 20 by setting a translational rail 21, a translational seat 22, and translational force components; it enables the translational seat 22 to move horizontally and orientably within the fixed frame 20 by setting a lifting mechanism, a lifting seat 23, and a lifting assembly, with the lifting mechanism located on the translational seat 22, allowing the lifting seat 23 to move up and down with the translational seat 22 as a reference; and it further enables a gripping mechanism located on the lifting seat 23 to grip the cap of the test tube, which is then lifted by the lifting seat 23 to transport the test tube. The tube is vertically removed from the hole of the buffer device and then moved to the starting point of the next process via the translation seat 22. By setting a positioning ruler 24 with toothed needles 241, the toothed needles 241 correspond one-to-one with the tube picking points. Using the toothed needles 241 as reference points, the moving distance of the translation seat 22 is accurately positioned, so that the gripping mechanism can smoothly stop directly above the tube picking point corresponding to the toothed needles 241. Through the cooperation of the above features, the test tube handling device can effectively solve the problem that existing test tube handling devices cannot accurately locate the points when cooperating with multiple collinear tube picking points.

[0024] It should be noted that the aforementioned translational force component can be any type of power component in the existing technology, such as a cylinder, hydraulic cylinder, gear and rack mechanism, as long as it can drive the translation seat 22 to move in a directional and quantitative manner.

[0025] To further improve positioning accuracy, the translation seat 22 is equipped with a distance sensor, which cooperates with the toothed needle 241 to detect the vertical distance from the distance sensor to the toothed needle 241.

[0026] With the above settings, when the distance sensor aligns with the toothed needle 241, the detection distance will change from an extremely far instant to the distance between the distance sensor and the toothed needle 241. Compared with human eye confirmation, the alignment accuracy is significantly improved.

[0027] To further explain the specific structure of the gripping mechanism, the gripping mechanism includes a pair of gripping arms 25. The root of the gripping arm 25 is horizontally rotatably connected to the lifting seat 23. The lifting seat 23 is provided with a synchronous drive assembly, which is respectively connected to the two gripping arms 25 so that the head ends of the two gripping arms 25 can synchronously move closer or further away from each other. The head end of the gripping arm 25 is provided with a semi-hoop 251, and the two semi-hoops 251 can hug each other. The semi-hoops 251 are used to hold the cap of the test tube.

[0028] With the above setup, the two gripping arms 25 are driven to move away from each other using a synchronous drive assembly. Then, the lifting seat 23 lowers the gripping arms 25 so that they are on the same plane as the tube cap. Then, the two gripping arms 25 are driven to move closer to each other using a synchronous drive assembly until the two half-hoops 251 hold the tube cap tightly. Then, the lifting seat 23 rises the tube until it is pulled out of the hole in the buffer device. Then, the tube is moved to the starting point of the next process using a translation seat 22. Finally, the two gripping arms 25 are driven to move away from each other using a synchronous drive assembly to release the clamped tube.

[0029] To provide one interpretation of the specific structure of the synchronous drive assembly, the synchronous drive assembly includes two stepper motors, which correspond one-to-one with and are connected to the gripping arm 25, and the two stepper motors rotate synchronously and in opposite directions.

[0030] To provide a second interpretation of the specific structure of the synchronous drive assembly, the synchronous drive assembly includes a stepper motor, a drive gear, and a driven gear. The stepper motor is connected to the drive gear, the drive gear meshes with the driven gear, the driven gear has the same shape as the drive gear, the drive gear and the driven gear are each meshed with a drive gear, the two drive gears have the same shape, and the two drive gears are respectively fixedly connected to the tail ends of the two gripping arms 25 and coaxially arranged.

[0031] To provide a third interpretation of the specific structure of the synchronous drive assembly, the synchronous drive assembly includes two drive cylinders, each corresponding to one of the gripping arms 25. The drive cylinders are hinged to the lifting seat 23, and the push rods of the drive cylinders are hinged to the corresponding gripping arms 25. The two drive cylinders are symmetrically arranged and extend and retract synchronously.

[0032] To avoid invalid operation, a monitoring plate 231 is provided on the top of the lifting seat 23, and a third detector 2311 is provided on the bottom surface of the monitoring plate 231. The third detector 2311 is used to monitor whether a test tube is held between the two half-hoops 251.

[0033] The end of the monitoring plate 231 away from the lifting seat 23 is tilted upward to form a viewing part. The bottom surface of the viewing part is provided with a fourth detector 2312, which is used to monitor whether a test tube is provided at any tube collection point.

[0034] It should be noted that the third detector 2311 and the fourth detector 2312 mentioned above can be any kind of distance sensor in the prior art.

[0035] To further explain the specific structure of the lifting assembly, the lifting assembly includes a top roller 26, a bottom roller 27, and a transmission belt 28; the top roller 26 and the bottom roller 27 are respectively located at the upper and lower parts of the lifting mechanism, the top roller 26 and the bottom roller 27 are located in the same vertical plane and the same vertical line, the top roller 26 or the bottom roller 27 is drivenly connected to a lifting motor 29, and the lifting motor 29 is fixedly connected to the lifting mechanism; the transmission belt 28 is supported on the top roller 26 and the bottom roller 27; the lifting seat 23 is fixedly connected to the transmission belt 28.

[0036] With the above setup, the lifting motor 29 drives the top roller 26 or the bottom roller 27 to rotate, which in turn drives the transmission belt 28 to drive the lifting seat 23 to rise and fall.

[0037] To improve the cooperation effect between the transmission belt 28 and the top roller 26 and the bottom roller 27, the roller surfaces of the top roller 26 and the bottom roller 27 are respectively provided with toothed surfaces of the same shape; the inner surface of the transmission belt 28 is provided with a toothed rack that meshes with the toothed surfaces.

[0038] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A test tube transport device, characterized in that, include: A fixed frame (20) is used to be fixedly connected to the external environment. The fixed frame (20) is horizontally provided with a translation rail (21). The translation rail (21) is slidably connected with a translation seat (22). The translation seat (22) is provided with a translation force component. The translation force component is fixedly connected to the fixed frame (20). The lifting mechanism is located on the translation seat (22). The lifting mechanism is provided with a lifting seat (23) and a lifting component. The lifting seat (23) is vertically slidably connected to the lifting mechanism. The lifting component is used to raise or lower the lifting seat (23). A gripping mechanism is provided on the lifting seat (23) and is used to grip the cap of the test tube; Positioning ruler (24), the positioning ruler (24) is set on the fixed frame (20) and is set parallel to the translation rail (21). The positioning ruler (24) is provided with a plurality of toothed needles (241) at intervals along the length direction. The toothed needles (241) correspond one-to-one with the tube picking point. When the translation seat (22) is aligned with any of the toothed needles (241), the gripping mechanism is aligned with the corresponding tube-taking point and is located directly above the corresponding tube-taking point.

2. The test tube handling device according to claim 1, characterized in that, The translation seat (22) is equipped with a distance sensor, which cooperates with the toothed needle (241) to detect the vertical distance from the distance sensor to the toothed needle (241).

3. The test tube handling device according to claim 1, characterized in that, The gripping mechanism includes a pair of gripping arms (25), the root of which is horizontally rotatably connected to the lifting seat (23). The lifting seat (23) is provided with a synchronous drive assembly, which is connected to the two gripping arms (25) respectively, so that the heads of the two gripping arms (25) can move closer or further away from each other synchronously. The first end of the gripping arm (25) is provided with a half hoop (251), and the two half hoops (251) can hug each other. The half hoop (251) is used to hold the cap of the test tube.

4. The test tube handling device according to claim 3, characterized in that, The synchronous drive assembly includes two stepper motors, which correspond one-to-one with the gripping arm (25) and are connected in transmission. The two stepper motors rotate synchronously and in opposite directions.

5. The test tube handling device according to claim 3, characterized in that, The synchronous drive assembly includes a stepper motor, a drive gear, and a driven gear. The stepper motor is connected to the drive gear, the drive gear meshes with the driven gear, the driven gear has the same shape as the drive gear, the drive gear and the driven gear are respectively meshed with a drive gear, the two drive gears have the same shape, and the two drive gears are respectively fixedly connected to the tail ends of the two gripping arms (25) and coaxially arranged.

6. The test tube handling device according to claim 3, characterized in that, The synchronous drive assembly includes two drive cylinders, each corresponding to one of the gripping arms (25). The drive cylinder is hinged to the lifting seat (23), and the push rod of the drive cylinder is hinged to the corresponding gripping arm (25). The two drive cylinders are symmetrically arranged and extend and retract synchronously.

7. The test tube handling device according to claim 3, characterized in that, The top of the lifting seat (23) is provided with a monitoring plate (231), and the bottom surface of the monitoring plate (231) is provided with a third detector (2311). The third detector (2311) is used to monitor whether a test tube is held between the two half-hoops (251).

8. The test tube handling device according to claim 7, characterized in that, The monitoring plate (231) is tilted upward at one end away from the lifting seat (23) to form a viewing section. The bottom surface of the viewing section is provided with a fourth detector (2312). The fourth detector (2312) is used to monitor whether a test tube is provided at any tube collection point.

9. The test tube handling device according to claim 1, characterized in that, The lifting assembly includes a top roller (26), a bottom roller (27), and a transmission belt (28). The top roller (26) and the bottom roller (27) are respectively located at the upper and lower parts of the lifting mechanism. The top roller (26) and the bottom roller (27) are located in the same vertical plane and in the same vertical line. The top roller (26) or the bottom roller (27) is connected to a lifting motor (29), and the lifting motor (29) is fixedly connected to the lifting mechanism. The transmission belt (28) is supported on the top roller (26) and the bottom roller (27). The lifting seat (23) is fixedly connected to the transmission belt (28).

10. The test tube transport device according to claim 9, characterized in that, The top roller (26) and the bottom roller (27) are respectively provided with toothed surfaces of the same shape; The inner surface of the transmission belt (28) is provided with a rack that meshes with the tooth surface.

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