A built-in micro thermoluminescent film sample removal mechanism

Abstract

The present invention discloses an embedded micro-thermoluminescent film sample-returning mechanism. The mechanism cooperates with an automatic sample-feeding mechanism to automatically return the automatically-fed measurement sample to a specific storage area, i.e., a sample box, after the measurement is completed, without affecting the continuous measurement of the sample. After the measurement process is completed, it is convenient to take out the measured sample, thereby realizing large-scale sample measurement. The mechanism is designed in a measurement drawer, has a compact structure, and is cleverly designed. It effectively solves the problem of automatic sample-returning of small samples. The movement direction of the sample-returning mechanism is unique, ensuring that the sample can accurately fall into the sample box without errors due to directional problems. A 5-mm-wide edge is carried on one side of the sample box of the mechanism, which is convenient for taking out the sample box. After the measurement is completed, the sample box can be easily taken out by simply opening the drawer. The mechanism structure belongs to an auxiliary structure of the measurement system, and does not affect the normal measurement function after installation.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic thermoluminescence measurement systems for environmental monitoring, health and disease control, nuclear power and military purposes, and in particular to an embedded micro-thermoluminescence sheet sample removal mechanism. Background Art

[0002] Thermoluminescence readout equipment is mainly used for personal dose equivalent monitoring in the environment, health, nuclear power and military. The samples generally used are 4.5mm in diameter and 0.8mm in height. There are also 4.5*4.5 square pieces or other sizes. The current common thermoluminescence measurement equipment and systems have the following disadvantages: 1. The heating plate that holds the measurement sample adopts a concave structure in the middle. The entire heating plate is not a completely flat heating plate. The volume and weight of the measurement sample are very small and light, which is not suitable for grabbing by a robot arm. 2. The only automatic product on the market adopts a turntable system. Before measurement, 50 samples are placed in the sample tray slot and placed one by one along the edge. They are not taken out during the measurement process. The samples are taken out one by one after the measurement process is completed. Moreover, they are taken out from deep inside the system, which is extremely inconvenient to grab; 3. Manual measurement is generally used in the market. A single sample is measured after installation. After the measurement is completed, the sample is manually taken out with tweezers. Generally, a single user measures more samples and the time requirement is relatively short. Manual measurement is inefficient and not conducive to large-scale rapid measurement. After the above analysis, the existing thermoluminescence measurement system currently does not adopt an automatic and efficient sample withdrawal device or mechanism.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0004] The object of the present invention is to provide an embedded micro-thermoluminescent film sample ejection mechanism to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an embedded micro-thermoluminescent film sample ejection mechanism, comprising a test drawer, a cylinder mounting seat is installed on one side of the bottom of the inner wall of the test drawer, a needle-shaped cylinder is installed on one side of the cylinder mounting seat, the piston end of the needle-shaped cylinder is connected to a sample ejection push rod, the sample ejection push rod is an L-shaped structural member, a screw hole is reserved in the middle of its short side structural plate, a circular through hole is opened at one end of its long side structural plate, a heating plate is installed at the bottom of the circular through hole of the long side structural plate, a heating plate is installed on the heating plate, a sample box is provided on one side of the long side structural plate, the side of the top of the sample box carries an edge with a width of 5 mm, and a retrieval groove is opened at the top of the test drawer corresponding to the top of the sample box, and a cover plate is embedded on one side of the retrieval groove.

[0006] Furthermore, the test drawer is installed in the drawer slot, and the cylinder mounting seat is fixed to the bottom of the inner wall of the test drawer by bolts.

[0007] Furthermore, the input end of the needle cylinder is connected to an air intake pipe, which is connected to one end of the needle cylinder via a threaded quick connector, and the air intake pipe is adapted to be equipped with a solenoid valve.

[0008] Furthermore, a mounting screw is threadedly connected to the screw hole of the short side structural plate of the ejector rod, and the short side structural plate is connected to the piston end of the needle cylinder through the mounting screw.

[0009] Furthermore, the long side structural plate of the sample ejector rod is a horizontal structure, the diameter of the circular through hole is 8 mm, and the cover plate is arranged parallel to the top of the long side structural plate of the sample ejector rod.

[0010] Furthermore, the heating plate is fixed to the bottom of the inner wall of the test drawer by bolts, the heating plate is located in the groove of the circular through hole, and the cable connected to the heating plate is passed out to the power supply device.

[0011] Furthermore, the position of the top of the sample box is 1 mm lower than the position of the bottom of the long side structural plate of the sample ejection rod, and the diameter of the sample extraction slot is larger than the diameter of the sample box.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This mechanism cooperates with the automatic sampling mechanism in the thermoluminescence automatic measurement system to automatically withdraw the automatically sampled measurement samples to a specific storage area after the measurement is completed without affecting the continuous measurement of the samples. After the measurement process is completed, it is convenient to take out the measured samples, thus realizing large-scale sample measurement.

[0014] The control system of this mechanism is composed of electric signal drive and gas drive. It can automatically withdraw samples without human intervention. The system is designed in the measuring drawer, with a compact structure and ingenious design, which effectively solves the problem of automatic withdrawal of small samples. The movement direction of this withdrawal mechanism is unique, ensuring that the sample can fall accurately into the sample box without errors due to directional problems.

[0015] The sample box of this mechanism has a 5 mm wide edge on one side to facilitate the removal of the sample box. After the measurement, the sample box can be easily removed by simply opening the drawer, making it convenient for users to continuously operate and further process the samples.

[0016] The solenoid valve and cylinder of this mechanism use Teflon air pipes with an outer diameter of Φ4 mm. The installation and maintenance are simple, convenient and fast. This cylinder and solenoid valve are mature industrial products with simple drive and reliable operation. They can operate unmanned for a long time.

[0017] This mechanism structure is an auxiliary structure of the measurement system. After installation, it will not affect the normal measurement function. When this structure is not used, the measurement system can still work manually, realizing the manual and automatic integration of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic structural diagram of the main assembly of an embedded micro-thermoluminescent sheet sample-removing mechanism according to an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of a top view of the structure inside the main body of an embedded micro-thermoluminescent sheet sample-removing mechanism according to an embodiment of the present invention;

[0021] Figure 3 Schematic diagram of the structure of the internal integral components of an embedded micro-thermoluminescent film sample removal mechanism according to an embodiment of the present invention Figure 1 ;

[0022] Figure 4 Schematic diagram of the structure of the internal integral components of an embedded micro-thermoluminescent film sample removal mechanism according to an embodiment of the present invention Figure 2 .

[0023] Reference numerals:

[0024] 1. Test drawer; 2. Cylinder mounting seat; 3. Air inlet pipe; 4. Cover plate; 5. Needle cylinder; 6. Sample ejector rod; 7. Mounting screws; 8. Round through hole; 9. Heating plate; 10. Heating sheet; 11. Sample box; 12. Removal slot. DETAILED DESCRIPTION

[0025] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0026] See also Figure 1-4According to an embodiment of the present invention, an embedded micro thermoluminescent film sample ejection mechanism comprises a test drawer 1, a cylinder mounting seat 2 is installed on one side of the bottom of the inner wall of the test drawer 1, a needle cylinder 5 is installed on one side of the cylinder mounting seat 2, the needle cylinder 5 is a needle cylinder produced by SMC, the model is Φ4-10, the maximum gas supply pressure is 7 kg, the daily working pressure is 3 kg, the movement stroke is 10 mm, and the function is to provide forward thrust under gas drive, the piston end of the needle cylinder 5 is connected to the ejection ejector rod 6, the ejection ejector rod 6 is an L-shaped structural member, and the middle part of the short side structural plate thereof A screw hole is left, and a circular through hole 8 is opened at one end of the long side structural plate. A heating plate 9 is installed at the bottom of the circular through hole 8 of the long side structural plate. The two are combined together to receive the test samples that fall in. A heating plate 10 is installed on the heating plate 9. A sample box 11 is provided on one side of the long side structural plate. It is a rectangular metal box of 50*40*20 mm. The side of the top of the sample box 11 carries an edge with a width of 5 mm. A retrieval groove 12 is opened at the top of the test drawer 1 corresponding to the top of the sample box 11, and a cover plate 4 is embedded on one side of the retrieval groove 12.

[0027] In addition, the test drawer 1 is installed in the drawer groove, the cylinder mounting seat 2 is fixed to the bottom of the inner wall of the test drawer 1 by bolts, the input end of the needle cylinder 5 is connected to the air intake pipe 3, and the air intake pipe 3 is connected to one end of the needle cylinder 5 through a threaded quick connector. The air intake pipe 3 is adapted to be equipped with a solenoid valve, and the solenoid valve signal is connected to the control computer. The screw hole of the short side structural plate of the sample ejector 6 is threadedly connected with a mounting screw 7, and the short side structural plate is connected to the piston end of the needle cylinder 5 through the mounting screw 7. The long side structural plate of the sample ejector 6 is a horizontal structure, and the diameter of the circular through hole 8 is 8 mm. The cover plate 4 is arranged parallel to the top of the long side structural plate of the sample ejector 6. The heating plate 9 is fixed to the bottom of the inner wall of the test drawer 1 by bolts, and the heating plate 10 is in the groove of the circular through hole 8. The cable connected to the heating plate 10 is passed out to the power supply device. The position of the top of the sample box 11 is 1 mm lower than the position of the bottom of the long side structural plate of the sample ejector 6, and the diameter of the sample retrieval slot 12 is larger than the diameter of the sample box 11.

[0028] Through the above scheme of the present invention, when it is used specifically, the automatic sampling mechanism drops the sample into the circular through hole 8 at one end of the sample withdrawal push rod 6. At this time, the sample is in the heating area of ​​the heating plate 10. The sample completes the temperature rise measurement and gives a measurement end signal. At this time, the control computer opens the solenoid valve, and the solenoid valve outputs compressed gas through the air intake pipe 3 to the needle cylinder 5. The piston of the needle cylinder 5 extends out under the action of the compressed gas, driving the sample withdrawal push rod 6 to move 1mm in the direction of the sample box 11. At this time, the sample in the circular through hole 8 is pushed into the sample box 11, and the system cuts off the power supply of the solenoid valve. After the needle cylinder 5 loses the driving gas, the piston returns to its position, and the sample withdrawal push rod 6 returns to the measurement position to perform the next measurement. It is worth noting that the automatic sampling mechanism belongs to the existing mature technology, not the main technical scheme of the present invention. This structure belongs to an auxiliary mechanism for cooperating with the automatic sampling mechanism, so the specific structure and working principle of the automatic sampling mechanism are not repeated.

[0029] In summary, with the help of the above technical scheme of the present invention, the mechanism cooperates with the automatic sample feeding mechanism to automatically withdraw the automatically sampled measurement samples to a specific storage area, i.e., the sample box 11, after the measurement is completed, without affecting the continuous measurement of the samples. After the measurement process is completed, it is convenient to take out the measured samples, thereby realizing large-scale sample measurement. The control system of the mechanism is composed of electrical signal drive and gas drive, and the samples can be automatically withdrawn without manual intervention. The mechanism is designed in the measurement drawer, with a compact structure and ingenious design, which effectively solves the problem of automatic withdrawal of small samples. The movement direction of the withdrawal mechanism is unique, ensuring that the samples can accurately fall into the sample box without any problems. Errors will occur due to directional problems; the sample box of this mechanism has a 5 mm wide edge on one side, which is convenient for taking out the sample box. After the measurement, you only need to open the drawer to easily take out the sample box, which is convenient for users to continuously operate and further process the samples; the solenoid valve and cylinder of this mechanism both use Teflon air pipes with an outer diameter of Φ4 mm. The installation and maintenance are very simple, convenient and fast. This cylinder and solenoid valve are mature industrial products with simple drive and reliable operation, and can operate for a long time without anyone; the structure of this mechanism is an auxiliary structure of the measurement system. After installation, it will not affect the normal measurement function. When the structure is not used, the measurement system can still work manually to realize the manual and automatic functions of the equipment.

[0030] In addition, the solenoid valve is a solenoid valve structure of SMC company, and its model is VZ110-5G-M5, driven by 24VDC. When powered, the solenoid valve is opened, and the driving gas is output to the needle cylinder 5 through the air intake pipe 3. The cover plate 4 is arranged parallel to the top of the long side structural plate of the ejector rod 6, which is used to limit and constrain the movement direction of the ejector rod 6, ensure that the ejector rod 6 does not tilt upward, and ensure the parallel movement of the ejector rod 6.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An embedded micro-thermoluminescent film sample removal mechanism, characterized in that: The test drawer (1) comprises a test drawer (1), wherein a cylinder mounting seat (2) is mounted on one side of the bottom of the inner wall of the test drawer (1), a needle-shaped cylinder (5) is mounted on one side of the cylinder mounting seat (2), a piston end of the needle-shaped cylinder (5) is connected to a sample ejector rod (6), the sample ejector rod (6) is an L-shaped structural member, a screw hole is left in the middle of a short side structural plate, a circular through hole (8) is opened at one end of a long side structural plate, a heating plate (9) is mounted on the bottom of the circular through hole (8) of the long side structural plate, and a heating plate (9) is mounted on the heating plate (9). A heating plate (10) is installed, a sample box (11) is provided on one side of the long side structural plate, the top side of the sample box carries an edge with a width of 5 mm, a top of the test drawer (1) is provided with a sampling groove (12) at a position corresponding to the top of the sample box (11), and a cover plate (4) is embedded on one side of the sampling groove (12); a mounting screw (7) is threadedly connected to the screw hole of the short side structural plate of the sample ejector rod (6), and the short side structural plate is connected to the piston end of the needle cylinder (5) through the mounting screw (7).

2. The embedded micro-thermoluminescent film sample removal mechanism according to claim 1, characterized in that: The test drawer (1) is installed in the drawer slot, and the cylinder mounting seat (2) is fixed to the bottom of the inner wall of the test drawer (1) by bolts.

3. The embedded micro-thermoluminescent sheet sample removal mechanism according to claim 1, characterized in that: The input end of the needle-shaped cylinder (5) is connected to an air intake pipe (3), the air intake pipe (3) is connected to one end of the needle-shaped cylinder (5) via a threaded quick connector, and the air intake pipe (3) is equipped with a solenoid valve.

4. The embedded micro-thermoluminescent sheet sample removal mechanism according to claim 1, characterized in that: The long side structural plate of the sample ejecting rod (6) is a horizontal structure, the diameter of the circular through hole (8) is 8 mm, and the cover plate (4) is arranged parallel to the top of the long side structural plate of the sample ejecting rod (6).

5. The embedded micro-thermoluminescent sheet sample removal mechanism according to claim 1, characterized in that: The heating plate (9) is fixed to the bottom of the inner wall of the test drawer (1) by means of bolts, the heating plate (10) is located in the groove of the circular through hole (8), and the cable connected to the heating plate (10) is led out to the power supply device.

6. The embedded micro-thermoluminescent film sample removal mechanism according to claim 1, characterized in that: The top of the sample box (11) is located 1 mm lower than the bottom of the long side structural plate of the sample ejection rod (6), and the diameter of the sample extraction slot (12) is larger than the diameter of the sample box (11).

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