Visual identification device for identifying positions of test tubes

Abstract

The utility model relates to the technical field of test tube identification, and discloses a visual identification device for identifying the position of a test tube, which comprises a working table, a PLC (Programmable Logic Controller) control panel is fixedly arranged on the front surface of the working table, and a tray is arranged on the table surface of the working table. According to the visual recognition device for recognizing the positions of the test tubes, recognition is carried out through the picture recognition module, sample frame pictures and test tube pictures which are pre-stored in the storage module are compared and recognized, the positions of the test tubes on a sample frame are recognized, the PLC control panel controls the lifting air cylinder to descend, and needle heads are inserted into the test tubes; a sample in a test tube is sucked into a needle tube, then a drag chain type sliding table, a first electric push rod and a second electric push rod are controlled by a PLC control panel to move, the extracted sample is moved to a designated position, then a vacuum pump stops working, a booster pump works, and the sample in the needle tube is pushed out, so that the position of the test tube can be accurately identified as a whole; and automatic sample extraction and release are carried out.

Description

TECHNICAL FIELD

[0001] The utility model relates to test tube identification technical field, concretely is a visual identification device for identifying test tube position. BACKGROUND

[0002] The sample rack is also called test tube rack, which is used for placing (sometimes, the test tube can be placed on the sample rack to observe the phenomenon of an experiment), and is the most basic experimental instrument in a chemical laboratory. The sample rack is provided with a corresponding number of small wooden columns and small holes. The test tube can be vertically placed in the small hole for standby or for continuous observation of the reaction. The test tube can be placed upside down on the column for drying.

[0003] During the experiment, different sample racks are placed with test tubes containing different types of reagents. The sample in the test tube needs to be extracted and sent to react with other samples. The traditional method is to manually suck the test tube on the sample rack. This method is very tedious when performing batch experiments. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a visual identification device for identifying the position of the test tube to solve the problems raised in the background art.

[0006] (II) Technical scheme

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a visual identification device for identifying the position of the test tube, including the workbench, the front of the workbench is fixedly installed with the PLC control panel, the table top of the workbench is placed with the tray, the tray is placed with the sample rack, the rear side of the workbench is fixedly installed with the drag chain type sliding table, the sliding block of the drag chain type sliding table is fixedly installed with the electric push rod one, the telescopic end of the electric push rod one is fixedly installed with the electric push rod two, the telescopic end of the electric push rod two is fixedly installed with the fixed seat, the inner side of the fixed seat is fixedly installed with the lifting air cylinder, the telescopic end of the lifting air cylinder is fixedly installed with the lifting plate, the bottom of the lifting plate is fixedly installed with the protective sleeve and the camera, the lifting plate is embeddedly fixedly installed with the fixed seat, the top of the fixed seat is screw-mounted with the pipe joint, the bottom of the fixed seat is screw-connected with the needle tube, the lower end of the needle tube is plug-pullly installed with the needle.

[0008] Preferably, the tray is distributed with three on the table top of the workbench.

[0009] Preferably, three sample racks are placed on the three trays.

[0010] Preferably, the bottom of the protective sleeve is an open structure, and the camera is located at the middle position of the protective sleeve.

[0011] Preferably, the PLC control panel is electrically connected with the drag chain type sliding table, the electric push rod one, the electric push rod two, the lifting cylinder and the camera.

[0012] Preferably, the inner side of the clamping jaw of the lifting cylinder is fixedly provided with a layer of rubber pad, and the surface of the rubber pad is provided with anti-skid lines.

[0013] Compared with the prior art, the visual identification device for identifying the position of the test tube has the following beneficial effects:

[0014] The visual identification device for identifying the position of the test tube compares and identifies the picture recognition module with the pre-stored sample rack picture and test tube picture in the storage module, identifies the position of the test tube on the sample rack, controls the lifting cylinder to descend by the PLC control panel, inserts the needle into the test tube, sucks the sample in the test tube into the needle tube, then moves the sucked sample to the specified position by the PLC control panel controlling the drag chain type sliding table, the electric push rod one and the electric push rod two, and then stops working of the vacuum pump and works of the booster pump to push out the sample in the needle tube, so that the position of the test tube can be accurately identified and the automatic sample sucking and releasing can be performed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a three-dimensional structure schematic view of the utility model;

[0016] Fig. 2 It is a rear view structure schematic view of the utility model;

[0017] Fig. 3 It is a lifting cylinder bottom structure schematic view of the utility model.

[0018] In the drawing: 1, workbench; 2, PLC control panel; 3, tray; 4, sample rack; 5, drag chain type sliding table; 6, electric push rod one; 7, electric push rod two; 8, fixed seat; 9, lifting cylinder; 10, protective sleeve; 11, camera; 12, fixed seat; 13, pipe joint; 14, needle tube; 15, needle; 16, lifting plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] As Figs. 1-3 shown, the utility model provides a technical scheme: a visual identification device for identifying test tube position, including workbench 1, PLC control panel 2, tray 3, sample rack 4, drag chain type sliding table 5, electric push rod one 6, electric push rod two 7, fixed base 8, lifting cylinder 9, protective sleeve 10 and camera 11, the front fixed mounting of workbench 1 has PLC control panel 2, the table top of the body workbench 1 is placed with tray 3, and sample rack 4 is placed on tray 3, and the rear side fixed mounting of workbench 1 has drag chain type sliding table 5, and the sliding block of drag chain type sliding table 5 is fixedly installed with electric push rod one 6, and the telescopic end of electric push rod one 6 is fixedly installed with electric push rod two 7, and the telescopic end of electric push rod two 7 is fixedly installed with fixed base 8, and the inner side of fixed base 8 is fixedly installed with lifting cylinder 9, and the telescopic end of lifting cylinder 9 is fixedly installed with lifting plate 16, and the bottom of lifting plate 16 is fixedly installed with protective sleeve 10 and camera 11, and lifting plate 16 is embeddedly fixedly installed with fixed base 12, and the top of fixed base 12 is screw-mounted with pipe joint 13, and the bottom of fixed base 12 is screw-connected with needle tube 14, and the lower end of needle tube 14 is plug-inly installed with needle 15, and pipe joint 13 is communicated with needle tube 14, and the top end of pipe joint 13 is connected with vacuum pump and booster pump through hose.

[0021] Further, tray 3 is distributed with three on the table top of workbench 1.

[0022] Through the above technical scheme, the sample rack 4 is placed by the tray 3 set.

[0023] Further, three sample racks 4 are placed on the three trays 3.

[0024] Through the above technical scheme, multiple sample racks 4 are placed at a time, avoiding placing one sample rack 4 repeatedly, and improving work efficiency.

[0025] Further, the bottom of protective sleeve 10 is of open structure, and camera 11 is located at the middle position of protective sleeve 10.

[0026] Through the above technical scheme, the camera 11 in the inner side is protected by the protective sleeve 10 set, and the sample rack 4 below is photographed by the camera 11.

[0027] Further, PLC control panel 2 is electrically connected with drag chain type sliding table 5, electric push rod one 6, electric push rod two 7, lifting cylinder 9 and camera 11.

[0028] Through the technical scheme, the PLC control panel 2 is an HT66F018 type single-chip microcomputer, which has a storage module and a picture recognition module inside, the storage module stores pictures of various sample racks 4 and pictures of test tubes in advance, the camera 11 photographs the sample rack 4 below, recognizes the position of the test tube on the sample rack 4, the PLC control panel 2 controls the lifting cylinder 9 to descend, the needle 15 is inserted into the test tube, the sample in the test tube is sucked into the needle tube 14, then the PLC control panel 2 controls the drag chain type sliding table 5, the electric push rod one 6 and the electric push rod two 7 to move, the extracted sample is moved to a specified position, then the vacuum pump stops working, the booster pump works, the sample in the needle tube 14 is pushed out, and the whole can accurately recognize the position of the test tube and automatically extract and release the sample.

[0029] Further, the lifting cylinder 9 is fixedly installed with a rubber pad on the inner side of the clamping jaw, and the surface of the rubber pad is provided with anti-skid lines.

[0030] Through the technical scheme, the lifting cylinder 9 is fixedly installed with a rubber pad on the inner side of the clamping jaw, and the surface of the rubber pad is provided with anti-skid lines.

[0031] Working principle: first, the tray with the sample rack 4 is placed on the table top of the workbench 1, the camera 11 photographs the sample rack 4 below, then the photographed picture is recognized by the picture recognition module, compared with the pictures of the sample rack 4 and the test tubes stored in the storage module in advance, the position of the test tube on the sample rack 4 is recognized, the PLC control panel 2 controls the lifting cylinder 9 to descend, the needle 15 is inserted into the test tube, the sample in the test tube is sucked into the needle tube 14, then the PLC control panel 2 controls the drag chain type sliding table 5, the electric push rod one 6 and the electric push rod two 7 to move, the extracted sample is moved to a specified position, then the vacuum pump stops working, the booster pump works, the sample in the needle tube 14 is pushed out, and the whole can accurately recognize the position of the test tube and automatically extract and release the sample.

[0032] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A visual recognition device for recognizing the position of test tubes, comprising a worktable (1), characterized in that: The front of the workbench (1) is fixedly installed with a PLC control panel (2), the tabletop of the workbench (1) is placed with a tray (3), the tray (3) is placed with a sample rack (4), the rear side of the workbench (1) is fixedly installed with a drag chain type sliding table (5), the sliding block of the drag chain type sliding table (5) is fixedly installed with an electric push rod one (6), the telescopic end of the electric push rod one (6) is fixedly installed with an electric push rod two (7), the telescopic end of the electric push rod two (7) is fixedly installed with a fixing seat (8), the inner side of the fixing seat (8) is fixedly installed with a lifting cylinder (9), the telescopic end of the lifting cylinder (9) is fixedly installed with a lifting plate (16), the bottom of the lifting plate (16) is fixedly installed with a protective sleeve (10) and a camera (11), the lifting plate (16) is embeddedly fixedly installed with a fixing seat (12), the top of the fixing seat (12) is threadedly installed with a pipe joint (13), the bottom of the fixing seat (12) is threadedly connected with a needle tube (14), the lower end of the needle tube (14) is plug-pullly installed with a needle (15).

2. The visual identification device for identifying the position of a test tube according to claim 1, characterized in that: The tray (3) is distributed with three on the tabletop of the workbench (1).

3. The visual identification device for identifying the position of a test tube according to claim 1, characterized in that: Three sample racks (4) are placed on the three trays (3).

4. The visual identification device for identifying the position of a test tube according to claim 1, characterized in that: The bottom of the protective sleeve (10) is of an open structure, and the camera (11) is located at the middle position of the protective sleeve (10).

5. The visual identification device for identifying the position of a test tube according to claim 1, characterized in that: The PLC control panel (2) is electrically connected with the drag chain type sliding table (5), the electric push rod one (6), the electric push rod two (7), the lifting cylinder (9) and the camera (11).

6. The visual identification device for identifying the position of a test tube according to claim 1, characterized in that: The inner side of the clamping jaw of the lifting cylinder (9) is fixedly installed with a layer of rubber pad, and the surface of the rubber pad is provided with anti-skid lines.

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