An automatic mobile line carrier secondary positioning structure

Abstract

The application discloses an automatic mobile line carrier secondary positioning structure, a fixed base is used for supporting a movable top block, the fixed base is installed on a loading station of the automatic mobile line, a support platform is used for bearing a planar micro-hole plate, when the automatic mobile line drives the support platform to translate along a straight line to the loading station, the movable top block and the support platform are mutually inserted and positioned through at least two groups of wedge-shaped positioning blocks and wedge-shaped positioning grooves, secondary positioning of the support platform and the planar micro-hole plate placed thereon is realized; elastic members are arranged between the fixed base and the movable top block, when the support platform contacts the movable top block, the movable top block compresses the elastic members, a buffering effect is achieved, and damage is avoided; through the arrangement of the movable top block, the support platform and the planar micro-hole plate are accurately positioned, and accurate drop of liquid drops can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a secondary positioning structure of a carrier for automatic mobile lines. BACKGROUND

[0002] Microbial drug sensitivity engineering technology is closely related to human beings today and in the future. The existing microbial pretreatment culture technology is mainly manual. With the increasing demand for microbial drug sensitivity testing, it is imperative to provide microbial culture efficiency, improve the working environment of operators, and shorten the detection culture time.

[0003] The microbial pretreatment process requires dropping reagents onto a planar microplate to form an array of droplets on the planar microplate. The planar microplate is supported by a corresponding carrier and translated, and the planar microplate is stopped at the loading station and the droplets are added to the planar microplate. The stopping position of the planar microplate is difficult to ensure accuracy, resulting in inaccurate addition of droplets on the planar microplate.

[0004] Therefore, in view of the above technical problems, how to accurately position the planar microplate is a technical problem that needs to be solved by those skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide a secondary positioning structure of a carrier for automatic mobile lines, which can accurately realize the secondary positioning of the droplet attachment assembly.

[0006] To achieve the above-mentioned purpose, the present application provides a secondary positioning structure of a carrier for automatic mobile lines, comprising a fixed base, a movable top block and an elastic member, the fixed base is installed at the loading station of the automatic mobile line, the automatic mobile line is used to drive the support platform to translate along a straight line, and the support platform is used to support the droplet attachment assembly.

[0007] The movable top block is slidably assembled on the fixed base, and the movable top block is provided with at least two groups of wedge-shaped positioning blocks and wedge-shaped positioning grooves for insertion positioning in cooperation with the droplet attachment assembly.

[0008] The elastic member is arranged between the fixed base and the movable top block, and the elastic member is used to apply an elastic force to the movable top block along the driving direction of the automatic mobile line.

[0009] Preferably, a linear guide rail is provided on the fixed base, and the movable top block can translate along the linear guide rail.

[0010] Preferably, the movable top block comprises a sliding mounting plate and a top block, and the sliding mounting plate and the top block are detachably and fixedly installed; the sliding mounting plate is installed on the linear guide rail.

[0011] Preferably, the top block is in U shape, and a step is arranged on the sliding installation plate for positioning the top block.

[0012] Preferably, the wedge-shaped positioning block is arranged on the top block, and the wedge-shaped positioning groove is arranged on the liquid droplet adhesion assembly.

[0013] Preferably, a limiting plate is arranged on the fixed base, and a guide screw is slidingly installed on the limiting plate; one end of the guide screw is fixed to the movable top block, and the diameter of the screw head of the guide screw is greater than the diameter of the opening arranged on the limiting plate.

[0014] Preferably, the elastic member is a coil spring, and the elastic member is sleeved on the outer periphery of the guide screw.

[0015] Preferably, the upper surface of the support platform is provided with a plurality of conical pins for guiding and limiting the liquid droplet adhesion assembly.

[0016] Preferably, the liquid droplet adhesion assembly comprises a planar microwell plate and a microwell plate carrier, the planar microwell plate is placed in the positioning groove arranged on the microwell plate carrier, and the wedge-shaped positioning groove is arranged on the outer side wall of the microwell plate carrier.

[0017] The depth of the positioning groove of the microwell plate carrier is greater than the thickness of the planar microwell plate.

[0018] Preferably, a positioning magnet is encapsulated on the microwell plate carrier, and the positioning magnet is magnetically attracted and positioned with the planar microwell plate.

[0019] The microwell plate carrier is provided with a first hand-avoiding position and a second hand-avoiding position, the first hand-avoiding position is used for taking out the planar microwell plate, and the second hand-avoiding position is used for clamping.

[0020] With respect to the above background technology, the automatic moving line carrier secondary positioning structure of the present application, the fixed base is used for providing support for the movable top block, the fixed base is installed on the loading station of the automatic moving line, the support platform is used for carrying the planar microwell plate, when the automatic moving line drives the support platform to translate along a straight line to the loading station, the movable top block and the support platform are positioned by mutual insertion of at least two groups of wedge-shaped positioning blocks and wedge-shaped positioning grooves, and the support platform and the planar microwell plate placed thereon are secondarily positioned; the elastic member is arranged between the fixed base and the movable top block, when the support platform contacts the movable top block, the movable top block compresses the elastic member, which plays a buffering role and avoids damage; the structure can precisely position the support platform and the planar microwell plate by arranging the movable top block, and can ensure precise droplet addition. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only belong to the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on the provided drawings.

[0022] Figure 1 The shaft measurement schematic diagram of the carrier secondary positioning structure for the automatic moving line provided by the embodiments of the present application;

[0023] Figure 2 The top view of the carrier secondary positioning structure for the automatic moving line provided by the embodiments of the present application;

[0024] Figure 3 The exploded view of the carrier secondary positioning structure for the automatic moving line provided by the embodiments of the present application;

[0025] Figure 4 The shaft measurement schematic diagram of the automatic moving line provided by the embodiments of the present application;

[0026] Figure 5 The top view schematic diagram of the automatic moving line provided by the embodiments of the present application;

[0027] Figure 6 The shaft measurement diagram of the automatic moving line and the support platform cooperating with each other provided by the embodiments of the present application;

[0028] Figure 7 The top view of the automatic moving line and the support platform cooperating with each other provided by the embodiments of the present application;

[0029] Figure 8 The front view schematic diagram of the droplet attachment assembly provided by the embodiments of the present application;

[0030] Figure 9 The back view schematic diagram of the droplet attachment assembly provided by the embodiments of the present application;

[0031] Figure 10 The schematic diagram of the microwell plate carrier provided by the embodiments of the present application.

[0032] In the figure: 1, fixed base 11, linear guide rail 12, limit plate 2, movable top block 21, wedge-shaped positioning block 22, sliding mounting plate 23, top block 3, elastic member 4, automatic moving line 5, support platform 51, conical pin 6, guide screw 7, droplet attachment assembly 71, wedge-shaped positioning groove 72, planar microwell plate 73, microwell plate carrier 74, positioning magnet, 75, first hand-avoiding position 76, second hand-avoiding position. DETAILED DESCRIPTION

[0033] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0034] In order for those skilled in the art to better understand the solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0035] The present application provides an automatic moving line carrier secondary positioning structure for secondary positioning of a droplet attachment assembly 7, so that the stop position of the droplet attachment assembly 7 is more accurate, and the droplets are added to the droplet attachment assembly 7 more accurately.

[0036] As shown in Figures 1 to 7 The automatic moving line carrier secondary positioning structure of the present application includes a fixed base 1, a movable top block 2 and an elastic member 3. The fixed base 1 is installed at a loading station of an automatic moving line 4. The automatic moving line 4 includes a guide rail and a driving device. The driving device can adopt driving modes such as a lead screw, a belt and a chain, which will not be described herein. The automatic moving line 4 can drive a support platform 5 installed thereon to move, i.e., the automatic moving line 4 is used to drive the support platform 5 to translate along a straight line. The support platform 5 is used to carry a droplet attachment assembly 7. The support platform 5 moves the droplet attachment assembly 7 to different positions for corresponding operations. Each corresponding position is called a station. Other devices for completing operations are provided at corresponding stations, for example, a sample adding device is configured at the loading station. The sample adding device adds droplets to the droplet attachment assembly 7. The automatic moving line carrier secondary positioning structure of the present application is installed at the loading station. When the support platform 5 drives the droplet attachment assembly 7 to move to the loading station, reagent droplets are added to the droplet attachment assembly 7 to form an array of droplets on the upper surface of the droplet attachment assembly 7. The droplet attachment assembly 7 is used to carry droplets.

[0037] The movable top block 2 is slidingly assembled to the fixed base 1. The movable top block 2 can move relative to the fixed base 1. The moving direction of the movable top block 2 is the same as the moving direction of the support platform 5 driving the droplet attachment assembly 7. When the droplet attachment assembly 7 moves towards the movable top block 2, the droplet attachment assembly 7 can contact the movable top block 2 when reaching the loading station.

[0038] The movable top block 2 is matched with the liquid droplet adhesion assembly 7 to be provided with at least two groups of wedge-shaped positioning blocks 21 and wedge-shaped positioning grooves 71 for insertion positioning, the wedge-shaped positioning block 21 is an outward convex bump structure, the wedge-shaped positioning groove 71 is an inward recessed groove structure, the shapes of the wedge-shaped positioning block 21 and the wedge-shaped positioning groove 71 are matched with each other, and the two can be inserted and matched with each other. The wedge-shaped positioning groove 71 is in a shape of a trumpet mouth with a small bottom and a large opening, the wedge-shaped positioning block 21 is in a wedge shape with a large bottom and a small top, and when the wedge-shaped positioning block 21 is inserted into the wedge-shaped positioning groove 71, it is inserted from the larger opening, and when the wedge-shaped positioning block 21 is inserted to the bottom, it is in contact with the inner wall of the wedge-shaped positioning groove 71, so that precise positioning is realized.

[0039] The elastic member 3 is arranged between the fixed base 1 and the movable top block 2, and is used to apply an elastic force to the movable top block 2 along the driving direction of the automatic moving line 4. When the support platform 5 drives the liquid droplet adhesion assembly 7 to contact the movable top block 2, the liquid droplet adhesion assembly 7 impacts the movable top block 2, so that the elastic member 3 is compressed, thereby achieving a buffering effect. The function of the elastic member 3 is to have a certain compression amount when the liquid droplet adhesion assembly 7 impacts the movable top block 2, so as to effectively ensure that the wedge-shaped positioning block 21 is inserted into the wedge-shaped positioning groove 71 to be closely fitted, thereby ensuring the guiding accuracy. When the liquid droplet adhesion assembly 7 moves away from the movable top block 2, the elastic member 3 makes the movable top block 2 return to the original position.

[0040] For convenience of description, the moving direction of the movable top block 2 is set as the X-axis, the vertical direction is set as the Z-axis, and the horizontal direction perpendicular to the X-axis is set as the Y-axis. The support platform 5 drives the liquid droplet adhesion assembly 7 to move along the X-axis direction to approach the movable top block 2. When the wedge-shaped positioning block 21 and the wedge-shaped positioning groove 71 are inserted into each other, the outer surface of the wedge-shaped positioning block 21 is in contact with the inner wall of the wedge-shaped positioning groove 71. Since the movable top block 2 cannot move in the Y-axis direction, the position of the liquid droplet adhesion assembly 7 in the Y-axis direction can be precisely adjusted. The elastic member 3 applies an elastic force to the movable top block 2 in the X-axis direction, so that the movable top block 2 generates a pushing force in the X-axis direction to the liquid droplet adhesion assembly 7, and the liquid droplet adhesion assembly 7 is tightly pressed on the support platform 5. Through the automatic moving line carrier secondary positioning structure, the liquid droplet adhesion assembly 7 is more accurately positioned in the X-axis and Y-axis directions, and the liquid droplet adhesion assembly 7 is more accurately stopped at the loading station, so as to ensure that the liquid droplet is accurately added.

[0041] In order to further optimize the above scheme, in the embodiment, a linear guide rail 11 is arranged on the fixed base 1, and the movable top block 2 can translate along the linear guide rail 11. The movable top block 2 is slidingly installed on the linear guide rail 11, and the guiding direction of the linear guide rail 11 is the X-axis direction, which is the same as the moving direction of the liquid droplet adhesion assembly 7. Through the guidance of the linear guide rail 11, the movable top block 2 can accurately move along the X-axis direction, so as to ensure the movement accuracy of the movable top block 2. The linear guide rail 11 can ensure that the movable top block 2 can smoothly move forward and backward in the X-axis direction when the movable top block 2 is pressed by the liquid droplet adhesion assembly 7.

[0042] The movable top block 2 comprises a sliding mounting plate 22 and a top block 23, as shown. Figure 3 The sliding mounting plate 22 and the top block 23 are detachably fixedly mounted, and when the top block 23 is worn, the top block 23 can be conveniently replaced; the sliding mounting plate 22 is mounted on the linear guide rail 11, and the sliding mounting plate 22 and the linear guide rail 11 are matched with each other to realize the guiding function.

[0043] Preferably, the top block 23 in the application is in a U shape, and a wedge-shaped positioning block 21 is arranged at each end of the U-shaped top block 23; a step for positioning the top block 23 is arranged on the sliding mounting plate 22, which can ensure that the top block 23 is accurately mounted on the sliding mounting plate 22; the top block 23 and the sliding mounting plate 22 can be relatively fixed by bolts or other detachable fixing modes for convenient and quick disassembly and replacement.

[0044] Preferably, the wedge-shaped positioning block 21 is arranged on the top block 23, and the wedge-shaped positioning groove 71 is arranged on the liquid droplet adhesion assembly 7; the outer periphery of the liquid droplet adhesion assembly 7 is free of protrusions, which facilitates its transfer and transportation. It should be noted that the wedge-shaped positioning block 21 and the wedge-shaped positioning groove 71 can be mutually exchanged, and the same positioning effect can also be achieved.

[0045] Preferably, a limiting plate 12 is arranged on the fixed base 1, and a guide screw 6 is slidably mounted on the limiting plate 12; one end of the guide screw 6 is fixed to the movable top block 2, and the diameter of the bolt head of the guide screw 6 is greater than the diameter of the opening arranged on the limiting plate 12; the limiting plate 12 functions to ensure that when the liquid droplet adhesion assembly 7 is away from the top block, the elastic member 3 rebounds the sliding mounting plate 22 to the original position, at which time the bolt head of the guide screw 6 contacts the limiting plate 12, thereby limiting the original position of the sliding mounting plate 22.

[0046] Specifically, the elastic member 3 is a coil spring, the elastic member 3 is sleeved on the outer periphery of the guide screw 6, and the elastic member 3 limits the guide screw 6, which can ensure that the elastic force of the elastic member 3 is directed to the movable top block 2.

[0047] The relative positions of the liquid droplet adhesion assembly 7 and the support platform 5 are ensured, a plurality of conical pins 51 are arranged on the upper surface of the support platform 5, usually two conical pins 51 correspond to each side edge of the liquid droplet adhesion assembly 7, and the conical pins 51 are used for guiding and limiting the liquid droplet adhesion assembly 7. The conical pins 51 are in a top-small and bottom-large conical structure, and when the liquid droplet adhesion assembly 7 is placed, there is a certain tolerance space, the side edge of the liquid droplet adhesion assembly 7 contacts the side wall of the conical pin 51, the liquid droplet adhesion assembly 7 is guided in the falling process, and the liquid droplet adhesion assembly 7 reaches a relatively accurate position when contacting the upper surface of the support platform 5.

[0048] When the droplet-attached assembly 7 reaches the loading station, the movable top block 2 exerts a jacking force on the droplet-attached assembly 7 in the X-axis direction, and the droplet-attached assembly 7 is jacked against the tapered pin 51. The bottom of the tapered pin 51 is a cylindrical structure with equal diameters, which can prevent the droplet-attached assembly 7 from moving upward.

[0049] As shown in Figures 7 to 10 The droplet-attached assembly 7 includes a planar microplate 72 and a microplate carrier 73. The planar microplate 72 is placed in a positioning groove provided on the microplate carrier 73. A wedge-shaped positioning groove 71 is provided on the outer sidewall of the microplate carrier 73.

[0050] The depth of the positioning groove of the microplate carrier 73 is greater than the thickness of the planar microplate 72. After the planar microplate 72 is placed in the microplate carrier 73, the planar microplate 72 can be stacked without smearing the original dry reagent on the planar microplate 72.

[0051] A positioning magnet 74 is encapsulated on the microplate carrier 73. The bottom surface of the microplate carrier 73 is provided with a groove, the positioning magnet 74 is placed in the groove, and the positioning magnet 74 is encapsulated by a stainless steel sheet, which can seal the positioning magnet 74, thereby preventing the magnet from rusting and falling off. The carrier can be used in a humid environment and can be soaked in water for cleaning. A steel sheet is provided on the planar microplate, and the positioning magnet 74 is magnetically attracted and positioned on the planar microplate, which ensures the stability of the droplet-attached assembly 7.

[0052] The microplate carrier 73 is provided with a first hand-avoiding position 75 and a second hand-avoiding position 76. The first hand-avoiding position 75 is a notch provided on one sidewall of the microplate carrier 73. The first hand-avoiding position 75 is used for taking out the planar microplate 72. When the planar microplate 72 needs to be taken out, one finger is pressed on the lower surface of the planar microplate 72 through the first hand-avoiding position 75, and the other finger is pressed on the upper surface of the planar microplate 72, which can facilitate the taking out of the planar microplate 72. The second hand-avoiding position 76 is used for clamping by a jaw. The second hand-avoiding position 76 is provided on the opposite two sidewalls of the microplate carrier 73. The second hand-avoiding position 76 can be a notch structure or a stepped groove. Each jaw is pressed on one second hand-avoiding position 76. When the planar microplate 72 is placed on a desktop or a flat surface, it is convenient to clamp.

[0053] It should be noted that the present application realizes secondary positioning of the droplet-attached assembly 7 by the movable top block 2. The position of the droplet-attached assembly 7 is more accurate when it stops at the loading station, thereby ensuring accurate droplet dispensing.

[0054] The principles and implementations of the present application are described in the above examples, which are only used to help understand the method and its core idea of the present application. It should be pointed out that, for those skilled in the art, without departing from the principles of the present application, some improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A secondary positioning structure for a carrier in an automated moving line, characterized in that, It includes a fixed base, a movable top block, and an elastic element. The fixed base is installed at the loading station of an automatic moving line. The automatic moving line is used to drive the support platform to move along a straight line. The support platform is used to carry the droplet attachment component. The movable top block is slidably assembled on the fixed base, and the movable top block and the droplet attachment assembly are provided with at least two sets of wedge-shaped positioning blocks and wedge-shaped positioning grooves for insertion positioning; The elastic element is disposed between the fixed base and the movable top block, and the elastic element is used to apply an elastic force to the movable top block along the driving direction of the automatic moving line; The fixed base is provided with a linear guide rail, and the movable top block can translate along the linear guide rail; The upper surface of the support platform is provided with several tapered pins, which are used to guide and limit the droplet attachment component.

2. The secondary positioning structure for an automated moving line carrier according to claim 1, characterized in that, The movable top block includes a sliding mounting plate and a top block, which are detachably and fixedly installed; the sliding mounting plate is installed on the linear guide rail.

3. The secondary positioning structure for an automated moving line carrier according to claim 2, characterized in that, The top block is U-shaped, and the sliding mounting plate is provided with a step for positioning the top block.

4. The secondary positioning structure for an automated moving line carrier according to claim 3, characterized in that, The wedge-shaped positioning block is disposed on the top block, and the wedge-shaped positioning groove is disposed on the droplet attachment assembly.

5. The secondary positioning structure for an automated moving line carrier according to claim 4, characterized in that, A limiting plate is provided on the fixed base, and a guide screw is slidably installed on the limiting plate; one end of the guide screw is fixed to the movable top block, and the bolt head diameter of the guide screw is larger than the opening diameter provided on the limiting plate.

6. The secondary positioning structure for an automated moving line carrier according to claim 5, characterized in that, The elastic element is a helical spring, which is fitted onto the outer periphery of the guide screw.

7. The secondary positioning structure for an automated moving line carrier according to claim 1, characterized in that, The droplet attachment assembly includes a planar microporous plate and a microporous plate carrier. The planar microporous plate is placed in a positioning groove provided in the microporous plate carrier, and the wedge-shaped positioning groove is provided on the outer side wall of the microporous plate carrier. The depth of the positioning groove of the microporous plate carrier is greater than the thickness of the planar microporous plate.

8. The secondary positioning structure for an automated moving line carrier according to claim 7, characterized in that, A positioning magnet is encapsulated on the microporous plate carrier, and the positioning magnet is magnetically attracted and positioned to the planar microporous plate. The microplate carrier is provided with a first hand-avoiding position and a second hand-avoiding position. The first hand-avoiding position is used for removing the planar microplate, and the second hand-avoiding position is used for gripping by the grippers.

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