Sample mixing mechanism

Abstract

The utility model discloses a sample mixing mechanism which is provided with a Y-axis direction and comprises a rack, a sample mixing mechanism and a sample mixing mechanism, the vibration table is slidably connected with the guide rail in the Y-axis direction, the vibration table is connected with a vibration driving assembly, the vibration driving assembly is used for driving the vibration table to conduct reciprocating vibration on the guide rail in the Y-axis direction, and a rotation driving assembly is installed on the vibration table; the blending shaft extends in the Y-axis direction, the blending shaft is rotationally installed on the vibration table through a bearing, the blending shaft is connected with the output end of the rotary driving assembly, and the rotary driving assembly can drive the blending shaft to rotate back and forth around the axial direction of the blending shaft relative to the vibration table; the test tube carrier is mounted on the uniform mixing shaft, the test tube carrier can load a test tube, and the test tube is used for placing a sample to be uniformly mixed. According to the uniform mixing mechanism, components easy to agglomerate and settled cakes in a sample can be crushed through vibration at a certain frequency, and by combining the back-and-forth rotation action of the sample, the effects of rapid and sufficient uniform mixing are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sample mixing, in particular to a sample mixing mechanism. Background Art

[0002] During the detection and experiment process, the samples in the test tube need to be evenly mixed. At present, some operators manually invert the test tube repeatedly to mix the samples. This mixing method is inefficient and the sample mixing effect is not ideal. Some mixers can use a single mechanical method such as rotation or vibration to achieve automatic and rapid mixing. However, the components and sedimentation lumps in the sample that are easy to agglomerate are difficult to break up, or they are not fully mixed after being broken up. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a sample mixing mechanism, which can quickly and fully mix the sample.

[0004] The sample mixing mechanism according to the embodiment of the utility model has a Y-axis direction, including: a frame, with a guide rail installed along the Y-axis direction; a vibration table, slidably connected to the guide rail along the Y-axis direction, the vibration table is connected to a vibration drive component, the vibration drive component is used to drive the vibration table to vibrate back and forth along the Y-axis direction on the guide rail, and a rotation drive component is installed on the vibration table; a mixing shaft, extending along the Y-axis direction, the mixing shaft is rotatably installed on the vibration table through a bearing, the mixing shaft is connected to the output end of the rotation drive component, and the rotation drive component can drive the mixing shaft to rotate back and forth around its own axis relative to the vibration table; a test tube carrier, installed on the mixing shaft, the test tube carrier can load test tubes, and the test tubes are used to place samples to be mixed.

[0005] The invention has at least the following beneficial effects: the mixing mechanism loads the test tube via a test tube carrier, and the sample to be mixed can be placed in the test tube; the test tube carrier is mounted on a mixing shaft; the rotating drive assembly can drive the mixing shaft to rotate back and forth around its own axis relative to the vibration table; while the sample is rotating, the vibration drive assembly can drive the vibration table to vibrate back and forth along the Y-axis on the guide rail; the test tube vibrates back and forth along the Y-axis along with the vibration table; the components and sedimentation lumps in the sample that are easy to agglomerate can be broken up by vibration of a certain frequency; combined with the back and forth rotation of the sample, a two-pronged approach is adopted to achieve a rapid and sufficient mixing effect.

[0006] According to some embodiments of the utility model, the vibration drive assembly includes a first motor, an eccentric shaft and a vibration connecting rod, the base of the first motor is installed on a frame, the eccentric shaft is installed on the output end of the first motor, one end of the vibration connecting rod is pivotally connected to the eccentric shaft, and the other end is pivotally connected to the vibration table.

[0007] According to some embodiments of the present utility model, the vibration drive assembly includes a vibration transmission plate and a vibration motor, the vibration transmission plate is installed on the vibration table, and the base of the vibration motor is installed on the vibration transmission plate.

[0008] According to some embodiments of the present utility model, an elastic reset member is further provided between the vibration table and the frame.

[0009] According to some embodiments of the present utility model, the elastic reset member is a tension spring, the tension spring extends along the Y-axis direction, one end of the tension spring is connected to the vibration table, and the other end is connected to the frame.

[0010] According to some embodiments of the utility model, the frame is provided with an isolation sleeve at a position corresponding to the mixing shaft, the mixing shaft penetrates the isolation sleeve along the Y-axis direction, and the mixing shaft can slide and rotate relative to the isolation sleeve.

[0011] According to some embodiments of the present invention, the isolation sleeve is a deformable flexible member.

[0012] According to some embodiments of the utility model, the rotary drive assembly includes a second motor, a driving pulley, a synchronous belt and a driven pulley which are sequentially connected in transmission, the base of the second motor is installed on the vibration table, and the driven pulley is installed on the mixing shaft.

[0013] According to some embodiments of the utility model, the frame is provided with two groups of guide rails along the Y-axis direction, and two groups of sliders are provided on the vibration table. The two groups of sliders are respectively slidably matched with the two groups of guide rails. The slider is provided with a slide groove on one side facing the guide rail, and the slide groove wraps and constrains the guide rail. The opening directions of the slide grooves of the two groups of sliders are perpendicular to each other.

[0014] According to some embodiments of the present invention, the test tube carrier is provided with a positioning groove for loading the test tube, and the length direction of the positioning groove is perpendicular to the Y-axis direction.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 The structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2The structure of the embodiment of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 3 The structure of the embodiment of the utility model is shown in FIG. Figure 3 ;

[0020] Figure 4 It is a schematic diagram of the local structure of an embodiment of the utility model.

[0021] Figure numbers: frame 1, guide rail 2, vibration table 3, slider 31, vibration drive assembly 4, first motor 41, eccentric shaft 42, vibration connecting rod 43, rotation drive assembly 5, second motor 51, driving pulley 52, synchronous belt 53, driven pulley 54, mixing shaft 6, bearing 7, test tube carrier 8, positioning groove 81, test tube 9, elastic reset part 10, isolation sleeve 11. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the description involving orientation, such as the orientation or position relationship indicated by the Y-axis, etc., is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Reference Figures 1 to 4 The utility model discloses a sample mixing mechanism, which has a Y-axis direction and includes a frame 1, a guide rail 2, a vibration table 3, a vibration drive component 4, a rotation drive component 5, a mixing shaft 6, a bearing 7 and a test tube carrier 8.

[0027] Among them, the guide rail 2 is installed on the frame 1 along the Y-axis direction, and the vibration table 3 is slidably connected to the guide rail 2 along the Y-axis direction, but the vibration table 3 does not slide a long distance relative to the guide rail 2. The guide rail 2 only provides a constraint basis for the vibration table 3 to reciprocate in the Y-axis direction in other directions.

[0028] like Figure 2 As shown, the vibration table 3 is connected to a vibration drive component 4, and the vibration drive component 4 is used to drive the vibration table 3 to vibrate back and forth along the Y-axis direction on the guide rail 2. The vibration drive component 4 can be specifically installed on the frame 1 and connected to the vibration table 3 through the output end. The vibration drive component 4 can also be installed on the vibration table 3 as a whole.

[0029] Reference Figure 3 and Figure 4 The mixing shaft 6 extends along the Y-axis direction and is rotatably mounted on the vibration table 3 through the bearing 7, so that the mixing shaft 6 can be supported by the vibration table 3 and can rotate around its own axis relative to the vibration table 3.

[0030] Further references Figure 2 and Figure 3 A rotation drive assembly 5 is installed on the vibration table 3, and a mixing shaft 6 is connected to the output end of the rotation drive assembly 5. The rotation drive assembly 5 can drive the mixing shaft 6 to rotate back and forth around its own axis relative to the vibration table 3.

[0031] Reference Figure 1 The test tube carrier 8 is installed on the mixing shaft 6. The test tube carrier 8 can load the test tube 9. The test tube 9 is used to place the sample to be mixed. According to needs, a tube plug can be installed at the tube mouth of the test tube 9 to achieve the sealing of the sample.

[0032] The mixing mechanism loads the test tube 9 via the test tube carrier 8, and the sample to be mixed can be placed in the test tube 9. The test tube carrier 8 is installed on the mixing shaft 6, and the rotation drive component 5 can drive the mixing shaft 6 to rotate back and forth around its own axis relative to the vibration table 3. While the sample is rotating, the vibration drive component 4 can drive the vibration table 3 to vibrate back and forth along the Y-axis direction on the guide rail 2, and the test tube 9 vibrates back and forth along the Y-axis direction along with the vibration table 3. Vibration of a certain frequency can break up the components and sedimentation lumps in the sample that are easy to agglomerate. Combined with the back and forth rotation of the sample, a two-pronged approach is adopted to achieve a fast and sufficient mixing effect.

[0033] In some embodiments of the present invention, the vibration drive assembly 4 can be mounted on the frame 1 and connected to the vibration table 3 through the output end. Figure 2The vibration drive assembly 4 includes a first motor 41, an eccentric shaft 42 and a vibration connecting rod 43. The base of the first motor 41 is installed on the frame 1. The first motor 41 can be a brushless DC motor or other servo motors. The eccentric shaft 42 is installed at the output end of the first motor 41. One end of the vibration connecting rod 43 is pivotally connected to the eccentric shaft 42, and the other end is pivotally connected to the vibration table 3.

[0034] Among them, the frame 1, the first motor 41, the eccentric shaft 42, the vibration connecting rod 43 and the vibration table 3 actually constitute a crank slider mechanism, which is a deformed high-speed crank slider mechanism in form. The first motor 41 drives the eccentric shaft 42 to rotate eccentrically, and the two are equivalent to forming a crank. The vibration connecting rod 43 is equivalent to a connecting rod, which ultimately realizes the reciprocating vibration of the vibration table 3 on the guide rail 2, and then transmits the vibration to the sample in the test tube 9.

[0035] In some other embodiments, the vibration drive assembly 4 is installed as a whole on the vibration table 3. The vibration drive assembly 4 specifically includes a vibration transmission plate and a vibration motor. The vibration transmission plate is installed on the vibration table 3, and the base of the vibration motor is installed on the vibration transmission plate. Starting the vibration motor can directly drive the vibration table 3 to vibrate back and forth on the guide rail 2.

[0036] In some embodiments, reference Figure 3 An elastic reset member 10 is also provided between the vibration table 3 and the frame 1. After the vibration drive assembly 4 stops, the vibration table 3 stops reciprocating vibration. The vibration table 3 can return to its initial position before vibration under the reset action of the elastic reset member 10, thereby keeping the position of the test tube 9 in the Y-axis direction unchanged, thereby ensuring the accuracy of the mixed sample in subsequent operations.

[0037] Specifically, the elastic reset member 10 can be a tension spring, which extends along the Y-axis direction. One end of the tension spring is connected to the vibration table 3, and the other end is connected to the frame 1. Before the vibration table 3 starts to vibrate, the tension spring is in an initial state, and the vibration table 3 is in a force balanced state in the Y-axis direction; after the vibration of the vibration table 3 ends, the vibration table 3 is in a force balanced state in the Y-axis direction, and the tension spring returns to the initial state. The tension spring can pull the vibration table 3 back to the initial position, so that the test tube 9 returns to the initial position in the Y-axis direction.

[0038] In some embodiments of the present invention, referring to Figures 1 to 3 The frame 1 is provided with an isolation sleeve 11 at a position corresponding to the mixing shaft 6. The mixing shaft 6 penetrates the isolation sleeve 11 along the Y-axis direction. The mixing shaft 6 can slide and rotate relative to the isolation sleeve 11. The mixing shaft 6 and the isolation sleeve 11 can be in flexible contact or lubricated contact, or can be non-contact. The isolation sleeve 11 can be a deformable flexible member, so that the mixing shaft 6 and the isolation sleeve 11 are in flexible contact.

[0039] Reference Figure 2 and Figure 3 In some embodiments of the utility model, the rotation drive component 5 includes a second motor 51, a driving pulley 52, a synchronous belt 53 and a driven pulley 54 which are sequentially connected in transmission. The base of the second motor 51 is installed on the vibration table 3, and the driven pulley 54 is installed on the mixing shaft 6. The second motor 51 can specifically be a stepping motor. When the second motor 51 is started, the driving pulley 52, the synchronous belt 53 and the driven pulley 54 rotate synchronously, and the rotational power can be transmitted to the mixing shaft 6.

[0040] Reference Figure 3 and Figure 4 Two sets of guide rails 2 can be installed on the frame 1 along the Y-axis direction, and two sets of sliders 31 are correspondingly installed on the vibration table 3. The two sets of sliders 31 are respectively slidably matched with the two sets of guide rails 2. The sliders 31 are provided with slide grooves facing one side of the guide rails 2, and the slide grooves wrap and constrain the guide rails 2. The slide groove opening directions of the two sets of sliders 31 are perpendicular to each other and are both perpendicular to the Y-axis direction. The two sets of sliders 31 are installed in a staggered manner. In addition to providing precise guiding effect for the vibration table 3, when the vibration table 3 is subjected to vibration loads other than the Y-axis direction, the vibration load can be effectively transmitted to the guide rails 2 and the frame 1 in sequence through the sliders 31, and the connection is very stable.

[0041] Reference Figure 1 In some embodiments, the test tube carrier 8 is provided with a positioning groove 81 for loading the test tube 9. Multiple groups of positioning grooves 81 can be provided to correspondingly position and load multiple groups of test tubes 9. The length direction of the positioning groove 81 is perpendicular to the Y-axis direction, so that when the mixing shaft 6 rotates back and forth around its own axis, the test tube 9 is in a repeatedly inverted posture, which is conducive to uniform mixing of the samples in the test tube 9.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. The sample mixing mechanism has a Y-axis direction, characterized in that: include: The frame is provided with a guide rail along the Y-axis direction; A vibration table, slidably connected to the guide rail along the Y-axis direction, the vibration table is connected to a vibration drive component, the vibration drive component is used to drive the vibration table to reciprocate along the Y-axis direction on the guide rail, and a rotation drive component is installed on the vibration table; A mixing shaft extending along the Y-axis direction, the mixing shaft being rotatably mounted on the vibration table through a bearing, the mixing shaft being connected to the output end of the rotation drive assembly, and the rotation drive assembly being capable of driving the mixing shaft to rotate back and forth around its own axis relative to the vibration table; A test tube carrier is installed on the mixing shaft, and the test tube carrier can load a test tube, and the test tube is used to place a sample to be mixed.

2. The sample mixing mechanism according to claim 1, characterized in that: The vibration drive assembly includes a first motor, an eccentric shaft and a vibration connecting rod. The base of the first motor is installed on a frame, the eccentric shaft is installed on an output end of the first motor, one end of the vibration connecting rod is pivotally connected to the eccentric shaft, and the other end is pivotally connected to the vibration table.

3. The sample mixing mechanism according to claim 1, characterized in that: The vibration driving assembly comprises a vibration transmission plate and a vibration motor. The vibration transmission plate is mounted on the vibration table, and the base of the vibration motor is mounted on the vibration transmission plate.

4. The sample mixing mechanism according to any one of claims 1 to 3, characterized in that: An elastic reset member is also provided between the vibration platform and the frame.

5. The sample mixing mechanism according to claim 4, characterized in that: The elastic reset member is a tension spring, which extends along the Y-axis direction. One end of the tension spring is connected to the vibration table, and the other end is connected to the frame.

6. The sample mixing mechanism according to any one of claims 1 to 3, characterized in that: The frame is provided with an isolating sleeve at a position corresponding to the mixing shaft. The mixing shaft penetrates the isolating sleeve along the Y-axis direction. The mixing shaft can slide and rotate relative to the isolating sleeve.

7. The sample mixing mechanism according to claim 6, characterized in that: The isolation sleeve is a deformable flexible member.

8. The sample mixing mechanism according to claim 1, characterized in that: The rotary drive assembly comprises a second motor, a driving pulley, a synchronous belt and a driven pulley which are sequentially connected in transmission. The base of the second motor is installed on the vibration table, and the driven pulley is installed on the mixing shaft.

9. The sample mixing mechanism according to claim 1, characterized in that: The frame is installed with two sets of guide rails along the Y-axis direction, and the vibration table is installed with two sets of sliders, which are respectively slidably matched with the two sets of guide rails. The slider is provided with a slide groove on one side facing the guide rail, and the slide groove wraps and constrains the guide rail. The opening directions of the slide grooves of the two sets of sliders are perpendicular to each other.

10. The sample mixing mechanism according to claim 1, characterized in that: The test tube carrier is provided with a positioning groove for loading the test tube, and the length direction of the positioning groove is perpendicular to the Y-axis direction.

Images