Automation device suitable for Abell stability test

Abstract

The invention relates to the technical field of Abell stability test equipment, and discloses an automatic device suitable for an Abell stability test. The test tube rack assembly, the first clamping mechanism, the second clamping mechanism, the pipetting mechanism and the constant-temperature heating mechanism are installed on the workbench, the test tube rack assembly is used for containing test tubes, the first clamping mechanism is used for clamping the test tubes in a releasable mode and moving the test tubes into the constant-temperature heating mechanism, and the second clamping mechanism is used for clamping a test tube rack in a releasable mode and moving the test tubes into the constant-temperature heating mechanism. The lower end of the test paper rack is used for connecting potassium iodide starch test paper, and the pipetting mechanism is used for sucking nitroglycerin and a glycerin aqueous solution and respectively filling the nitroglycerin and the glycerin aqueous solution into the test tube and the potassium iodide starch test paper; the monitoring mechanism is used for monitoring color change of the potassium iodide starch test paper; and a control unit. According to the invention, the automatic test process of the Abell stability test can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of Abel stability test equipment, in particular to an automated device suitable for Abel stability test. Background Art

[0002] The Abel stability test is an important method for detecting the stability of a substance under specific conditions. Traditional Abel stability test devices mostly rely on manual operation, which has many disadvantages, such as cumbersome operation, low efficiency, and the possibility of inaccurate control of test conditions due to human factors, thus affecting the accuracy and reliability of the test results. In addition, long-term close-range manual operation also poses certain safety risks when testing some hazardous substances. Therefore, it is of great practical significance to develop an Abel stability test device that can achieve automated operation.

[0003] The patent with publication number CN116990290A discloses an automated operation and identification system for Abel stability test, including a remote control unit and an automatic test unit. The remote control unit is used to realize the human-computer interaction functions of system control, remote monitoring, and emergency stop of the automatic test unit. The automatic test unit is used to realize dual-arm collaboration instead of manual sample pre-processing, including pouring, filtering, plugging, sampling and waste sample recovery. The visual detection camera collects the Abel stability experiment image and transmits it to the industrial computer of the control cabinet. The neural network algorithm automatically identifies the experimental stage corresponding to the color change of the test paper, draws the stage result curve and presents it in a visual form.

[0004] However, in actual application, the patent exposed some defects: on the one hand, when wetting the potassium iodide starch test paper, the injection of the glycerol aqueous solution requires high precision, which needs to be controlled at 3μL~4μL, and the ordinary syringe cannot accurately absorb the glycerol aqueous solution; on the other hand, during the test, it is necessary to accurately control the height of the lower edge of the potassium iodide starch test paper and the bottom of the test tube to be 76mm, and it is necessary to ensure that the potassium iodide starch test paper placed in the test tube naturally droops and does not touch the inner wall of the test tube. When the potassium iodide starch test paper is placed in the test tube, the above scheme is only fixed by the test tube rack assembly, which cannot guarantee the stability of the test tube, the height of the potassium iodide starch test paper in the test tube, and the contact between the potassium iodide starch and the inner wall of the test tube; on the other hand, the Abel test of nitroglycerin stability is to heat nitroglycerin at 72°C, and the nitric oxide gas released by decomposition reacts with the potassium iodide on the test paper. The above device is not set with a constant temperature heating device, and the Abel stability test process cannot be realized. Summary of the invention

[0005] The present invention aims to provide an automated device suitable for Abel stability test to overcome the above-mentioned shortcomings.

[0006] In order to achieve the above object, the technical solution of the present invention is: an automated device suitable for Abel stability test, comprising:

[0007] Workbench;

[0008] A test tube rack assembly, a first clamping mechanism, a second clamping mechanism, a liquid transfer mechanism and a constant temperature heating mechanism installed on the workbench, the test tube rack assembly is used to hold the test tube, the first clamping mechanism is used to clamp the test tube in a releasable manner and move it into the constant temperature heating mechanism, the second clamping mechanism is used to clamp the test paper rack in a releasable manner and install it on the test tube, the lower end of the test paper rack is used to connect the potassium iodide starch test paper, and the liquid transfer mechanism is used to absorb nitroglycerin and glycerol aqueous solution and add them into the test tube and onto the potassium iodide starch test paper respectively;

[0009] Monitoring devices for monitoring the color change of potassium iodide starch test strips; and

[0010] A control unit electrically connected to the first clamping mechanism, the second clamping mechanism, the liquid transfer mechanism, the constant temperature heating mechanism and the monitoring mechanism respectively.

[0011] Furthermore, the first clamping mechanism comprises:

[0012] An electric clamping jaw 1, comprising a base 1 and two clamping jaws 1 slidably connected to and arranged opposite to each other below the base 1, wherein the two clamping jaws 1 can move closer to or farther from each other and can clamp the test tube in a releasable manner;

[0013] A lifting assembly for adjusting the height of the machine base; and

[0014] A position adjustment component is used to adjust the machine base along the length direction of the workbench.

[0015] Furthermore, the lifting assembly 1 comprises:

[0016] A connecting frame 1 fixedly connected to the base 1;

[0017] A sliding frame 1, wherein the sliding frame 1 is provided with a sliding rail 1 in the vertical direction, the connecting frame 1 is slidably connected to the sliding rail 1, the sliding frame 1 is rotatably connected to two pulleys 1, the two pulleys 1 are respectively located at the upper and lower sides of the sliding rail 1, the two pulleys 1 are connected through a sleeved belt 1, wherein a part of the belt 1 is fixedly connected to the connecting frame 1; and

[0018] A power member 1 fixedly connected to the sliding frame 1 and drivingly connected to at least one of the pulleys 1, wherein the power member 1 is electrically connected to the control unit;

[0019] The position adjustment component 1 comprises:

[0020] A second slide rail fixedly connected to the workbench, the second slide rail being arranged along the length direction of the workbench, and the first slide frame being slidably connected to the second slide rail;

[0021] Two pulleys 2 are rotatably connected to the workbench and located on both sides of the slide rail 2, the two pulleys 2 are connected by a sleeved belt 2, and a portion of the belt 2 is connected to the slide frame 1; and

[0022] A power member 2 is fixedly connected to the workbench and transmission-connected to at least one of the pulleys 2, and the power member 2 is electrically connected to the control unit.

[0023] Furthermore, the first clamping mechanism comprises:

[0024] The electric clamping jaw 2 includes a base 2 and two clamping jaws 2 connected to the lower part of the base 2 and arranged symmetrically with respect to the center, wherein the two clamping jaws 2 can rotate along their central symmetry axis and can move closer to or farther from each other, and can clamp the test paper holder in a releasable manner;

[0025] A lifting assembly 2 for adjusting the height of the machine base 2; and

[0026] A position adjustment component 2 is used to adjust the displacement of the machine base 2 along the length direction of the workbench.

[0027] Furthermore, the second lifting assembly comprises:

[0028] A second connecting frame fixedly connected to the second machine base;

[0029] A sliding frame 2, wherein a sliding rail 3 is arranged on the sliding frame 2 in a vertical direction, the connecting frame 2 is slidably connected to the sliding rail 3, and the sliding frame 2 is rotatably connected to two pulleys 3, the two pulleys 3 are respectively located at the upper and lower sides of the sliding rail 3, and the two pulleys 3 are connected through a sleeved belt 3, wherein a part of the belt 3 is fixedly connected to the sliding frame 2; and

[0030] A power member 3 is fixedly connected to the connecting frame 2 and is transmission-connected to at least one of the pulleys 3, and the power member 3 is electrically connected to the control unit.

[0031] The second position adjustment component comprises:

[0032] A second slide rail fixedly connected to the workbench, the second slide rail being arranged along the length direction of the workbench, and the second sliding frame being slidably connected to the second slide rail;

[0033] Two pulleys four are rotatably connected to the workbench and located on both sides of the slide rail two, the two pulleys four are connected by a sleeved belt four, wherein a portion of the belt four is connected to the slide frame two; and

[0034] A power member four is fixedly connected to the workbench and transmission-connected to at least one of the pulleys four, and the power member four is electrically connected to the control unit.

[0035] Furthermore, the pipetting mechanism comprises:

[0036] A pipetting air pump electrically connected to the control unit;

[0037] A gun tip box is fixedly connected to the workbench, and the gun tip box is located below the liquid transfer air pump and is used to hold gun tips for replacement of the liquid transfer air pump;

[0038] An angle adjustment component for adjusting the angle of the pipetting air pump; and

[0039] A position adjustment component three is used to adjust the displacement of the pipetting air pump along the length and width directions of the workbench.

[0040] Furthermore, the angle adjustment component comprises:

[0041] Connecting frame three;

[0042] A mounting frame fixedly connected to the liquid transfer air pump, one end of the mounting frame being hinged to the lower end of the connecting frame three; and

[0043] A power telescopic rod having a fixed end connected to the connection frame three and a movable end connected to the other end of the mounting frame three, wherein the power telescopic rod is electrically connected to the control unit;

[0044] The position adjustment component three comprises:

[0045] Two groups of connection seats fixedly connected to the top of the workbench, each group of connection seats has two connection seats, and the four connection seats are distributed in a rectangular array. The connection seats are rotatably connected with pulleys five one by one, and the two pulleys five on each group of connection seats are connected by belts five, and the belts five are arranged along the width direction of the workbench;

[0046] A double-headed driving motor fixedly connected to the workbench and located between the two connecting seats, the double-headed driving motor is electrically connected to the control unit, and the transmission shafts at both ends are respectively connected to one of the pulleys on each group of the connecting seats;

[0047] A slide rail 5 is provided between each set of two connecting seats, and the slide rail 5 is fixedly connected to the top of the workbench and is arranged along the width direction of the workbench;

[0048] A sliding frame three is vertically fixedly connected to the lower surfaces of the two pulleys five, and the two ends of the sliding frame three are respectively slidably connected to the two slide rails five. The sliding frame three is provided with slide rails six along its length direction, and the connecting frame three is slidably connected to the slide rails six. The sliding frame two is rotatably connected to two pulleys six, and the two pulleys six are respectively located on both sides of the slide rails six. The two pulleys six are connected through a sleeved belt six, and a part of the pulleys six is ​​fixedly connected to the connecting frame three; and

[0049] A power member six is ​​fixedly connected to the sliding frame three and drivingly connected to at least one of the pulleys six, and the power member six is ​​electrically connected to the control unit.

[0050] Further, the constant temperature heating mechanism includes a constant temperature water bath and a test tube rack 1 arranged in the constant temperature water bath, and the constant temperature water bath is electrically connected to the control unit;

[0051] The monitoring mechanism includes a camera 1 arranged toward the test tube rack 1.

[0052] Furthermore, the test tube rack assembly comprises:

[0053] A bracket fixedly connected to the workbench;

[0054] A slide rail 7 fixedly connected to the bracket, wherein the slide rail 7 extends along the width direction of the workbench;

[0055] A test tube rack 2 slidably connected to the slide rail 7, the test tube rack 2 being used to place a test tube for which the height of the potassium iodide starch test paper is to be calibrated;

[0056] Two pulleys 7 are rotatably connected to the bracket and are located on both sides of the slide rail 7. The two pulleys 7 are connected by a sleeved belt 7, wherein a part of the belt 7 is fixedly connected to the test tube rack 2;

[0057] A power member 7 fixedly connected to the bracket and drivingly connected to at least one of the pulleys 7, wherein the power member 7 is electrically connected to the control unit;

[0058] An electric clamp three is fixedly mounted in the bracket, the electric clamp three is electrically connected to the control unit, and one end of the electric clamp three close to the test tube rack two is provided with two clamps three arranged opposite to each other, and the two clamps three clamp the test tube on the test tube rack two in a releasable manner; and

[0059] A test tube rack three and a fixing seat fixedly connected to the workbench, wherein the fixing seat and the test tube rack three are respectively used for installing the test tube when the potassium iodide starch test paper is installed and the test tube when the potassium iodide starch test paper is installed;

[0060] The monitoring mechanism also includes a second camera disposed toward the fixing seat.

[0061] Furthermore, it also includes:

[0062] A nitroglycerin reagent bottle and a glycerin aqueous solution reagent bottle are installed on the workbench, wherein the nitroglycerin reagent bottle contains the nitroglycerin, and the glycerin aqueous solution reagent bottle contains the glycerin aqueous solution.

[0063] Compared with the prior art, the present invention has at least the following advantages:

[0064] The invention is provided with a constant temperature heating device, which can stably heat nitroglycerin at 72° C. to realize the Abel stability test process.

[0065] The present invention absorbs and injects solutions through a liquid transfer air pump, avoids mutual infection between solutions by replacing the gun head, and realizes a precise solution filling process.

[0066] The present invention can clearly observe the process of adding potassium iodide starch test paper into a test tube by cooperating with the second camera and the first clamping assembly. When the height between the lower edge of the potassium iodide starch test paper and the bottom of the test tube is 76 mm, the assembly is completed, and errors caused by manual operation can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] 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 labor.

[0068] Figure 1 The schematic diagram of the overall structure of the automated device for the Abel stability test of the present invention;

[0069] Figure 2 It is a schematic diagram of the overall structure of the automated device applicable to the Abel stability test of the present invention from another perspective;

[0070] Figure 3 It is a schematic diagram of the assembly of the first clamping mechanism and the second clamping mechanism of the present invention;

[0071] Figure 4 is a cross-sectional view of the first clamping mechanism and the second clamping mechanism of the present invention;

[0072] Figure 5 It is a structural schematic diagram of the liquid transfer structure of the present invention;

[0073] Figure 6 It is a structural schematic diagram of the liquid transfer structure of the present invention from another perspective;

[0074] Figure 7 This is a cross-sectional view of the support, slide rail 7, test tube rack 2 and other components of the present invention;

[0075] Figure 8 This is a diagram showing the effect of the second clamping mechanism and the liquid transfer mechanism cooperating to perform liquid dripping;

[0076] Fig. 9 This is a diagram showing the effect of the second clamping mechanism of the present invention installing the potassium iodide starch test paper into the test tube;

[0077] Fig.10 The figure is a schematic diagram of assembling the test paper holder and the potassium iodide starch test paper of the present invention.

[0078] Reference numerals: 1, workbench; 2, test tube rack assembly; 3, first clamping mechanism; 4, second clamping mechanism; 5, liquid transfer mechanism; 6, constant temperature heating mechanism; 7, test paper rack; 8, potassium iodide starch test paper; 9, monitoring mechanism; 10, test tube; 11, nitroglycerin reagent bottle; 12, glycerin aqueous solution reagent bottle; 201, bracket; 202, slide rail seven; 203, test tube rack two; 204, pulley seven; 205 , belt seven; 206, power piece seven; 207, electric gripper three; 208, gripper three; 209, test tube rack three; 210, fixed seat; 301, machine base one; 302, gripper one; 303, connecting frame one; 304, sliding frame one; 305, slide rail one; 306, pulley one; 307, belt one; 308, power piece one; 309, slide rail two; 310, pulley two; 311, belt two ; 312, power piece 2; 401, base 2; 402, clamping claw 2; 403, connecting frame 2; 404, sliding frame 2; 405, slide rail 3; 406, pulley 3; 407, belt 3; 408, power piece 3; 409, pulley 4; 410, belt 4; 411, power piece 4; 501, pipetting air pump; 502, gun head box; 503, connecting frame 3; 504, mounting frame; 505, power telescopic rod; 506, connecting seat; 507, pulley five; 508, belt five; 509, double-head drive motor; 510, slide rail five; 511, slide frame three; 512, pulley six; 513, belt six; 514, power part six; 601, constant temperature water bath; 602, test tube rack one; 701, rubber stopper; 702, glass rod; 901, camera one; 902, camera two. DETAILED DESCRIPTION

[0079] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0080] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0081] Reference Figure 1-2 The present invention provides an automated device suitable for Abel stability test, comprising a workbench 1, a test tube rack assembly 2, a first clamping mechanism 3, a second clamping mechanism 4, a pipetting mechanism 5, a constant temperature heating mechanism 6, a monitoring mechanism 9 and a control unit (not shown in the figure).

[0082] Among them, the workbench 1 is a frame structure, which is the supporting part of the whole device. The test tube rack assembly 2, the first clamping mechanism 3, the second clamping mechanism 4, the liquid transfer mechanism 5 and the constant temperature heating mechanism 6 are all installed on the workbench 1. The test tube rack assembly 2 is used to hold the test tube 10, the first clamping mechanism 3 is used to clamp the test tube 10 in a releasable manner and move it into the constant temperature heating mechanism 6, the second clamping mechanism 4 is used to clamp the test paper rack 7 in a releasable manner and install it on the test tube 10, the lower end of the test paper rack 7 is used to connect the potassium iodide starch test paper 8, the liquid transfer mechanism 5 is used to absorb nitroglycerin and glycerol aqueous solution and add them to the test tube 10 and the potassium iodide starch test paper 8 respectively. The monitoring mechanism 9 is used to monitor the color change of the potassium iodide starch test paper 8; the control unit is electrically connected to the first clamping mechanism 3, the second clamping mechanism 4, the liquid transfer mechanism 5 and the constant temperature heating mechanism 6 and the monitoring mechanism 9 respectively. In a preferred embodiment, the control unit is an industrial computer.

[0083] Reference Figure 3-4 The first clamping mechanism 3 includes an electric clamp 302, a lifting component 1 and a position adjustment component 1. The electric clamp 302 includes a base 301 and two clamps 302 that are slidably connected and arranged opposite to each other below the base 301. The two clamps 302 can move closer to or farther from each other and can clamp the test tube 10 in a releasable manner; the lifting component 1 is used to adjust the height of the base 301; and the adjustment component 1 is used to adjust the displacement of the base 301 along the length direction of the workbench 1. In the process of the two clamps 302 clamping the test tube 10, the lifting component 1 adjusts the height of the base 301, which can adjust the height of the test tube 10. By adjusting the displacement of the base 1 through the position adjustment component 1, the test tube 10 can be adjusted to different positions to facilitate the realization of different test stages.

[0084] Preferably, the lifting assembly 1 includes a connecting frame 1303, a sliding frame 1304, a slide rail 1305, a pulley 1306, a belt 1307 and a power piece 1308. Among them: the connecting frame 1303 is fixedly connected to the machine base 1301; the slide rail 1305 is arranged on the sliding frame 1304 in the vertical direction, the connecting frame 1303 is slidably connected to the slide rail 1305, the sliding frame 1304 is rotatably connected to two pulleys 1306, the two pulleys 1306 are respectively located on the upper and lower sides of the slide rail 1305, the two pulleys 1306 are connected by a sleeved belt 1307, a part of which is fixedly connected to the connecting frame 1303; the power piece 1308 is fixedly connected to the sliding frame 1304, and is connected by at least one pulley 1306, the power piece 1308 is electrically connected to the control unit, and a servo motor or a stepper motor can be selected. The power member 308 drives the pulley 306 to rotate, which can drive the connecting frame 303 to slide along the slide rail 305 to achieve the effect of adjusting the height of the base.

[0085] Position adjustment component 1 includes slide rail 2 309, pulley 2 310, belt 2 311 and power component 2 312. Slide rail 2 309 is fixedly connected to the workbench 1, and slide rail 2 309 is arranged along the length direction of the workbench 1, and sliding frame 1 304 is slidably connected to slide rail 2 309; two pulleys 2 310 are rotatably connected to the workbench 1 and are located on both sides of slide rail 2 309, and two pulleys 2 310 are connected by transmission through sleeved belt 2 311, and a part of belt 2 311 is connected to sliding frame 1 304; power component 2 312 is fixedly connected to the workbench 1 and is connected by transmission with at least one pulley 2 310, and power component 2 312 is electrically connected to the control unit, and power component 2 312 can be selected from servo motor or stepper motor. Power component 2 312 drives pulley 2 310 to rotate, and can drive sliding frame 1 304 to slide along slide rail 2 309, so as to achieve the effect of adjusting the displacement of base 1.

[0086] In addition, the first clamping mechanism 3 includes an electric clamp 402, a lifting component 2 and a position adjustment component 2. Among them, the electric clamp 402 adopts the existing technical structure, and the electric clamp 402 includes a base 401 and two clamps 402 connected to the bottom of the base 401 and symmetrically arranged at the center. The two clamps 402 can rotate along their central symmetry axis and can move closer or farther away from each other, and can clamp the test paper rack 7 in a releasable manner; the lifting component 2 is used to adjust the height of the base 401; the position adjustment component 2 is used to adjust the displacement of the base 401 along the length direction of the workbench 1. In the process of the two clamps 402 clamping the test paper rack 7, the lifting component 2 adjusts the height of the base 401, which can adjust the height of the test paper rack 7. By adjusting the displacement of the base 2 through the position adjustment component 2, the test paper rack 7 can be adjusted to different positions to facilitate the realization of different test stages.

[0087] Preferably, the lifting assembly 2 includes a connecting frame 2 403, a sliding frame 2 404, a sliding rail 3 405, a pulley 3 406, a belt 3 407 and a power piece 3 408. Among them: the connecting frame 2 403 is fixedly connected to the machine base 2 401; the sliding frame 2 404 is provided with a sliding rail 3 405 in the vertical direction, the connecting frame 2 403 is slidably connected to the sliding rail 3 405, and the sliding frame 2 404 is rotatably connected to two pulleys 3 406, the two pulleys 3 406 are respectively located at the upper and lower sides of the sliding rail 3 405, and the two pulleys 3 406 are connected by the sleeved belt 3 407, wherein a part of the belt 3 407 is fixedly connected to the connecting frame 2 403; the power piece 3 408 is fixedly connected to the sliding frame 2 404, and is connected by transmission to at least one pulley 3 406, the power piece 3 408 is electrically connected to the control unit, and a servo motor or a stepper motor can be selected. The power part three 408 drives the pulley three 406 to rotate, which can drive the connecting frame two 403 to slide along the slide rail three 405 to achieve the effect of adjusting the height of the base two.

[0088] Position adjustment component 2 includes slide rail 2 309, pulley 409, belt 410 and power member 411. Among them, slide rail 2 309 is fixedly connected to the workbench 1, slide rail 2 309 is arranged along the length direction of the workbench 1, and sliding frame 2 404 is slidably connected to slide rail 2 309; two pulleys 409 are rotatably connected to the workbench 1 and are located on both sides of slide rail 2 309, and the two pulleys 409 are connected by the sleeved belt 410, and a part of the belt 410 is connected to the sliding frame 2 404; power member 411 is fixedly connected to the workbench 1 and is connected by at least one pulley 409, and power member 411 is electrically connected to the control unit, and power member 411 can be a servo motor or a stepper motor. Power member 411 drives pulley 409 to rotate, and can drive sliding frame 2 404 to slide along slide rail 2 309, so as to achieve the effect of adjusting the displacement of base 2.

[0089] Reference Figure 7-8The liquid transfer mechanism 5 includes a liquid transfer air pump 501, a gun tip box 502, an angle adjustment component and a position adjustment component 3. The liquid transfer air pump 501 is electrically connected to the control unit. The liquid transfer air pump 501 has a plunger driven by a stepper motor and a screw nut, and an integrated encoder is used to realize closed-loop control. It can accurately and quantitatively absorb the solution. Its gun tip is retractable and can automatically remove and install the gun tip. The ADP1000 liquid transfer air pump 501 produced by Shenzhen Daken Technology Co., Ltd. is preferably used. This is a prior art and will not be described in detail; the gun tip box 502 is located below the liquid transfer air pump 501. The gun tip box 502 is fixedly connected to the workbench 1 and is used to hold the gun tip of the liquid transfer air pump 501. The liquid transfer air pump 501 can be used in conjunction with the gun tip box 502 to facilitate the replacement of the gun tip of the liquid transfer air pump 501; the angle adjustment component is used to adjust the angle of the liquid transfer air pump 501; the position adjustment component 3 is used to adjust the liquid transfer air pump 501 along the length and width direction of the workbench 1.

[0090] Preferably, the angle adjustment component includes a connection frame 3 503, a mounting frame 504 and a power telescopic rod 505, wherein the connection frame is connected to the position adjustment component 3, the mounting frame 504 is fixedly connected to the liquid transfer air pump 501, and one end of the mounting frame 504 is hinged to the lower end of the connection frame 3 503; the power telescopic rod 505 uses an electric push rod, the fixed end of the power telescopic rod 505 is connected to the connection frame 3 503, the movable end of the power telescopic rod 505 is connected to the other end of the mounting frame 504, and the power telescopic rod 505 is electrically connected to the control unit. The control unit controls the power telescopic rod 505 to extend and retract, and changes the tilt angle of the liquid transfer air pump 501, so that it is convenient to absorb dripping liquid when it is vertical, and the dripping process can be realized when it is tilted.

[0091] Position adjustment component three includes a connection seat 506, a pulley five 507, a belt five 508 and a double-headed driving motor 509. The connection seats 506 are provided in two groups, each group of which has two connection seats 506, fixed on the top of the workbench 1 and distributed in a rectangular array, and the connection seats 506 are rotatably connected with pulleys five 507 one by one, and each group of two pulleys five 507 is connected by a belt five 508, and the belt five 508 is arranged along the width direction of the workbench 1; the double-headed driving motor 509 is fixedly connected to the workbench 1 and is located between the two connection seats 506, and the double-headed driving motor 509 is electrically connected to the control unit, and the transmission shafts at both ends are respectively connected to a pulley five 507 on each group of connection seats 506.

[0092] A slide rail 5 510 is arranged between each set of two connecting seats 506. The slide rail 5 510 is fixedly connected to the top of the workbench 1 and is arranged along the width direction of the workbench 1; the sliding frame 3 511 is vertically fixedly connected to the lower surfaces of the two pulleys 5 507, and the two ends of the sliding frame 3 511 are respectively slidably connected to the two slide rails 5 510. The sliding frame 3 511 is provided with a slide rail 6 (not shown in the drawings) along its length direction, the connecting frame 3 503 is slidably connected to the slide rail 6, and the sliding frame 2 404 is rotatably connected to two pulleys 6 512, the two pulleys 6 512 are respectively located on both sides of the slide rail 6, and the two pulleys 6 512 are connected in transmission through a sleeved belt 6 513, and a part of the pulleys 6 512 is fixedly connected to the connecting frame 3 503; the power piece 6 514 is fixedly connected to the sliding frame 3 511, and a servo motor or a stepper motor can be selected, and it is connected in transmission to at least one of the pulleys 6 512, and the power piece 6 514 is electrically connected to the control unit.

[0093] The double-headed driving motor 509 rotates, which can drive the pulley five 507 to rotate, and can drive the transfer air pump 501 to change its position along the width direction of the workbench 1; the power part six 514 rotates, which can drive the pulley six 512 to rotate, and can drive the transfer control pump to change its position along the length direction of the workbench 1.

[0094] Preferably, the constant temperature heating mechanism 6 includes a constant temperature water bath 601 and a test tube rack 602 arranged in the constant temperature water bath 601. The test tube 10 is placed in the test tube rack 602. The constant temperature water bath 601 can provide a constant temperature test environment for it. The constant temperature water bath 601 is electrically connected to the control unit, and the control unit can control the heating temperature of the constant temperature water bath 601; the monitoring mechanism 9 includes a camera 901 arranged toward the test tube rack 602, and the camera 901 can capture images in real time and identify the color change of the starch potassium iodide test paper.

[0095] Reference Figure 7The test tube rack assembly 2 includes a bracket 201, a slide rail 202, a test tube rack 203, a pulley 204, an electric clamp 207, a test tube rack 209 and a fixing seat 210. Among them, the bracket 201 is fixedly connected to the workbench 1; the slide rail 202 is fixedly connected to the bracket 201, and the slide rail 202 extends along the width direction of the workbench 1; the test tube rack 203 is slidably connected to the slide rail 202, and the test tube rack 203 is used to place the test tube 10 to be calibrated with the height of the potassium iodide starch test paper 8; two pulleys 204 are respectively rotatably connected to the bracket 201 and are located on both sides of the slide rail 202, and the two pulleys 204 are connected by a sleeved belt 205, and a part of the belt 205 is fixedly connected to the test tube rack 203; the power piece 206 is fixedly connected to the bracket 201, and a servo motor or a stepper motor can be selected, and it is connected to at least one pulley 204, and the power piece 206 is electrically connected to the control unit. The rotation of the power part 7 206 can drive the test tube rack 2 203 to extend along the width direction of the workbench 1. The electric clamp 3 207 is fixedly installed in the bracket 201. The electric clamp 3 207 is electrically connected to the control unit 3. The electric clamp 3 207 is provided with two oppositely arranged clamps 3 208 at one end close to the test tube rack 2 203. The two clamps 3 208 clamp the test tube 10 on the test tube rack 2 203 in a releasable manner. The control unit can control the two clamps 3 208 to move closer or farther away from each other. The test tube rack 3 209 and the fixing seat 210 are fixedly connected to the workbench 1. The fixing seat 210 and the test tube rack 3 209 are respectively used for installing the test tube 10 when the potassium iodide starch test paper 8 is installed and the test tube 10 when the potassium iodide starch test paper 8 is installed is completed. The top of the fixing seat 210 is provided with a blind hole, in which the test tube 10 is embedded, the lower end of the test tube 10 is installed in the blind hole, and the upper end thereof protrudes from the fixing seat 210, so as to facilitate observation when the potassium iodide starch test paper 8 is loaded in the test tube 10. The fixing seat 210 can fix the test tube 10 and also limit the height of the test tube 10.

[0096] The monitoring mechanism 9 further includes a second camera 902 disposed toward the fixing seat 210 . The second camera 902 is used to identify the process of adding nitroglycerin into the test tube 10 , the dripping process of the potassium iodide starch test paper 8 , and the process of installing the potassium iodide starch test paper 8 in the test tube 10 .

[0097] Preferably, the present invention further comprises a nitroglycerin reagent bottle 11 and a glycerin aqueous solution reagent bottle 12 installed on the workbench 1, wherein the nitroglycerin reagent bottle 11 contains nitroglycerin, and the glycerin aqueous solution reagent bottle 12 contains glycerin aqueous solution.

[0098] Reference Fig.10The test paper holder 7 includes a rubber stopper 701 and a glass rod 702. The rubber stopper 701 is in the shape of an inverted truncated cone and is detachably connected to the mouth of the test tube 10. The two clamping claws 402 can releasably clamp the rubber stopper 701. The lower section of the glass rod 702 is fixedly passed through the rubber stopper 701 and is provided with a hook, which passes through the potassium iodide starch test paper 8 to fix the potassium iodide starch test paper 8.

[0099] Working principle of the present invention:

[0100] In the first step, a plurality of test tubes 10 and starch potassium iodide test papers are manually pre-installed and sequentially placed on the test tube rack 203, and nitroglycerin and glycerin aqueous solution are respectively added to the nitroglycerin reagent bottle 11 and the glycerin aqueous solution reagent bottle 12 on the workbench 1.

[0101] In the second step, after the preparation work is completed, the equipment is powered on, and the personnel stay away from the automation device of the present invention and observe the operation of the automation device through camera 1 901 and camera 2 902.

[0102] The third step is the equipment automation analysis process.

[0103] a control unit controls the power member 206 to rotate so that one of the test tubes 10 is located between the two clamps 208, and the control unit controls the electric clamp 207 so that its two clamps 208 clamp the test tube 10;

[0104] b. The power member 3 408 and the power member 411 are activated by the control unit, so that the second clamp 402 is located above the test tube 10 and clamps the rubber stopper 701, and then the starch potassium iodide test paper is removed from the test tube 10 by clamping the rubber stopper 701, and then moves to the reaction area, which is the area where the fixed seat 210 and the gun tip box 502 are located;

[0105] c. The control unit controls the electric clamp 207 to release the two clamps 208 from fixing the test tube 10, and by starting the power member 308 and the power member 2 312, the test tube 10 is clamped by the clamp 302, and then the clamp is released after being installed on the fixing seat 210;

[0106] d. Start the double-headed drive motor 509 and the power member 514 through the control unit, change the position of the pipetting air pump 501,

[0107] The pipetting air pump sucks nitroglycerin and injects it into the bottom of the test tube 10;

[0108] e. Use the double-head drive motor 509 and the power part 6 514 together, replace the gun tip on the liquid transfer air pump 501, and absorb the glycerol aqueous solution, then move the power telescopic rod 505 to tilt it so that it can be aligned with the potassium iodide starch test paper 8, and the control unit controls the second clamp 402 to rotate so that the potassium iodide starch test paper 8 is better facing the gun tip of the liquid transfer air pump 501, and then use the liquid transfer air pump to inject the glycerol aqueous solution into the potassium iodide starch test paper 8. For details, please refer to Figure 8 , then move the pipetting air pump 501 away from the second clamping jaw 402, and the power telescopic rod 505 is reset.

[0109] f. Reference Fig. 9 , the control unit starts the power piece three 408 and the power piece four 411, and uses the clamp two 402 to make the potassium iodide starch test paper 8 located directly above the test tube 10, and then inserts the potassium iodide starch test paper 8 into the test tube 10. The camera two 902 recognizes the height of the potassium iodide starch test paper 8 in the test tube 108 in real time and feeds back to the control unit. When the height between the lower edge of the potassium iodide starch test paper 8 and the bottom of the test tube 10 is 76 mm, the control unit power piece three 408 stops moving, and uses the clamp two 402 to release the clamping of the rubber stopper 701. Then the control unit controls the power piece three 408 to drive the clamp to rise, and the process of installing the potassium iodide starch test paper 8 in the test tube 10 is completed.

[0110] g. By starting the power member 308 and the power member 312, the test tube 10 is clamped onto the test tube rack 3 209 using the clamp 302.

[0111] h. The control unit controls the power member 7 206 to rotate so that the next test tube 10 is located between the two clamps 3 208, and the control unit controls the electric clamp 3 207 so that its two clamps 3 208 clamp the test tube 10; refer to repeating the above process bf to complete the assembly process of the next test tube 10.

[0112] j. By starting the power member 1 308 and the power member 2 312 , the next test tube 10 is clamped onto the test tube rack 3 209 using the clamp 1 302 .

[0113] k. Turn on the constant temperature water bath 601 through the control unit, wait for the constant temperature water bath 601 to be heated to 72°C, start the power piece 1 308 and the power piece 2 312, use the clamp 1 302 to clamp the two test tubes 10 to the test tube rack 1 602, and two cameras 1 901 respectively record the color of the potassium iodide starch test paper 8. When the dry-wet dividing line of the potassium iodide starch test paper 8 turns yellow-brown, it is the end point, stop the test, and record the time.

[0114] It should be noted that the first clamp 302 and the second clamp 402 of the present invention are both unable to be extended and retracted, and the first clamp 302, the second clamp 402, the third clamp 208, the test tube rack 1 602 and the test tube rack 3 209 of the present invention are all located on the same plane.

[0115] The automation device of the present invention can realize automated testing. Since the machine can run continuously without human supervision and conduct a large number of repeated tests, the test cycle can be significantly shortened. The automation system can accurately control the test conditions, reduce human errors, and improve the accuracy of the test results.

[0116] Automated testing can prevent testers from direct contact with hazardous substances and ensure their safety. The automated system can monitor the test process in real time and prevent potential safety hazards.

[0117] The automated test system can record test data in real time to ensure the integrity and accuracy of the data. The automated analysis tool can quickly and accurately analyze the test data, helping researchers to quickly discover patterns and problems.

[0118] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do 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 should not be understood as a limitation on the present invention.

[0119] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An automated device for Abel stability test, characterized in that: include: Workbench (1); A test tube rack assembly (2), a first clamping mechanism (3), a second clamping mechanism (4), a liquid transfer mechanism (5) and a constant temperature heating mechanism (6) are installed on the workbench (1), wherein the test tube rack assembly (2) is used to hold a test tube (10), the first clamping mechanism (3) is used to clamp the test tube (10) in a releasable manner and move it into the constant temperature heating mechanism (6), the second clamping mechanism (4) is used to clamp a test paper rack (7) in a releasable manner and install it on the test tube (10), the lower end of the test paper rack (7) is used to connect a potassium iodide starch test paper (8), and the liquid transfer mechanism (5) is used to absorb nitroglycerin and a glycerol aqueous solution and inject them into the test tube (10) and onto the potassium iodide starch test paper (8) respectively; A monitoring mechanism (9) for monitoring the color change of the potassium iodide starch test paper (8); and A control unit electrically connected to the first clamping mechanism (3), the second clamping mechanism (4), the liquid transfer mechanism (5), the constant temperature heating mechanism (6) and the monitoring mechanism (9) respectively.

2. The automated device for Abel stability test according to claim 1, characterized in that: The first clamping mechanism (3) comprises: An electric clamp (302), comprising a base (301) and two clamps (302) slidably connected to and arranged opposite to each other below the base (301), wherein the two clamps (302) can move closer to or farther from each other and can clamp the test tube (10) in a releasable manner; A lifting assembly 1 for adjusting the height of the machine base 1 (301); and A position adjustment component 1 for adjusting the machine base 1 (301) along the length direction of the workbench (1).

3. The automated device for Abel stability test according to claim 2, characterized in that: The lifting assembly 1 comprises: A connecting frame 1 (303) fixedly connected to the machine base 1 (301); A sliding frame (304), wherein the sliding frame (304) is provided with a sliding rail (305) in a vertical direction, the connecting frame (303) is slidably connected to the sliding rail (305), and the sliding frame (304) is rotatably connected to two pulleys (306), the two pulleys (306) are respectively located on the upper and lower sides of the sliding rail (305), and the two pulleys (306) are connected through a sleeved belt (307), wherein a part of the belt (307) is fixedly connected to the connecting frame (303); and A power member (308) fixedly connected to the sliding frame (304) and transmission-connected to at least one of the pulleys (306), wherein the power member (308) is electrically connected to the control unit; The position adjustment component 1 comprises: A second slide rail (309) fixedly connected to the workbench (1), the second slide rail (309) being arranged along the length direction of the workbench (1), and the first slide frame (304) being slidably connected to the second slide rail (309); Two pulleys (310) rotatably connected to the workbench (1) and located on both sides of the second slide rail (309), the two pulleys (310) being connected by a sleeved belt (311), wherein a portion of the belt (311) is connected to the first slide frame (304); and A second power member (312) is fixedly connected to the workbench (1) and is transmission-connected to at least one of the second pulleys (310); the second power member (312) is electrically connected to a control unit.

4. The automated device for Abel stability test according to claim 2, characterized in that: The first clamping mechanism (3) comprises: The electric clamping jaw 2 (402) comprises a base 2 (401) and two clamping jaws 2 (402) connected to the base 2 (401) and arranged symmetrically with respect to the center, wherein the two clamping jaws 2 (402) can rotate along their central symmetry axis and can move closer to or farther from each other, and can clamp the test paper holder (7) in a releasable manner; A lifting assembly 2 for adjusting the height of the machine base 2 (401); and A position adjustment component 2 for adjusting the displacement of the machine base 2 (401) along the length direction of the workbench (1).

5. The automated device for Abel stability test according to claim 4, characterized in that: The second lifting assembly comprises: A second connecting frame (403) fixedly connected to the second machine base (401); A second sliding frame (404), wherein a third sliding rail (405) is arranged on the second sliding frame (404) in a vertical direction, wherein the second connecting frame (403) is slidably connected to the third sliding rail (405), wherein the second sliding frame (404) is rotatably connected to two third belt pulleys (406), wherein the two third belt pulleys (406) are respectively located on the upper and lower sides of the third sliding rail (405), and the two third belt pulleys (406) are connected in transmission through a sleeved third belt (407), wherein a portion of the third belt (407) is fixedly connected to the second sliding frame (404); and A power member three (408) is fixedly connected to the connecting frame two (403) and is transmission-connected to at least one of the pulleys three (406); the power member three (408) is electrically connected to the control unit. The second position adjustment component comprises: A second slide rail (309) fixedly connected to the workbench (1), the second slide rail (309) being arranged along the length direction of the workbench (1), and the second sliding frame (404) being slidably connected to the second slide rail (309); Two pulleys (409) rotatably connected to the workbench (1) and located on both sides of the second slide rail (309), the two pulleys (409) being connected by a sleeved belt (410), wherein a portion of the belt (410) is connected to the second slide frame (404); and A power part four (411) is fixedly connected to the workbench (1) and is transmission-connected to at least one of the pulleys four (409); the power part four (411) is electrically connected to the control unit.

6. The automated device for Abel stability test according to claim 2, characterized in that: The liquid transfer mechanism (5) comprises: A pipetting air pump (501), which is electrically connected to the control unit; A gun tip box (502) is fixedly connected to the workbench (1), and the gun tip box (502) is located below the liquid transfer air pump (501) and is used to hold gun tips for replacement of the liquid transfer air pump (501); An angle adjustment component for adjusting the angle of the pipetting air pump (501); and A position adjustment component three is used to adjust the displacement of the pipetting air pump (501) along the length and width directions of the workbench (1).

7. The automated device for Abel stability test according to claim 6, characterized in that: The angle adjustment component comprises: Connecting frame three (503); A mounting frame (504) fixedly connected to the liquid transfer air pump (501), one end of the mounting frame (504) being hinged to the lower end of the connecting frame three (503); and A power telescopic rod (505) having a fixed end connected to the third connecting frame (503) and a movable end connected to the other end of the third mounting frame (504), wherein the power telescopic rod (505) is electrically connected to the control unit; The position adjustment component three comprises: Two groups of connection seats (506) are fixedly connected to the top of the workbench (1), each group of connection seats (506) has two connection seats, and the four connection seats (506) are distributed in a rectangular array. The connection seats (506) are rotatably connected with pulleys (507) one by one, and the two pulleys (507) on each group of connection seats (506) are connected by a belt (508). The belt (508) is arranged along the width direction of the workbench (1); A double-headed driving motor (509) fixedly connected to the workbench (1) and located between the two connecting seats (506), the double-headed driving motor (509) being electrically connected to the control unit, and the transmission shafts at both ends being respectively connected to one of the pulleys 5 (507) on each group of the connecting seats (506); A slide rail 5 (510) is provided between each set of two connecting seats (506), and the slide rail 5 (510) is fixedly connected to the top of the workbench (1) and is provided along the width direction of the workbench (1); A sliding frame three (511) vertically fixedly connected to the lower surfaces of the two pulleys five (507), the two ends of the sliding frame three (511) are respectively slidably connected to the two slide rails five (510), the sliding frame three (511) is provided with a slide rail six along its length direction, the connecting frame three (503) is slidably connected to the slide rail six, the sliding frame two (404) is rotatably connected to two pulleys six (512), the two pulleys six (512) are respectively located on both sides of the slide rail six, the two pulleys six (512) are connected through a sleeved belt six (513), and a part of the pulley six (512) is fixedly connected to the connecting frame three (503); and A power member six (514) is fixedly connected to the sliding frame three (511) and is transmission-connected to at least one of the pulleys six (512); the power member six (514) is electrically connected to the control unit.

8. The automated device for Abel stability test according to claim 6, characterized in that: The constant temperature heating mechanism (6) comprises a constant temperature water bath (601) and a test tube rack (602) arranged in the constant temperature water bath (601), and the constant temperature water bath (601) is electrically connected to the control unit; The monitoring mechanism (9) includes a camera (901) arranged toward the test tube rack (602).

9. The automated device for Abel stability test according to claim 8, characterized in that: The test tube rack assembly (2) comprises: A bracket (201) fixedly connected to the workbench (1); A slide rail seven (202) fixedly connected to the bracket (201), the slide rail seven (202) extending along the width direction of the workbench (1); A test tube rack 2 (203) slidably connected to the slide rail 7 (202), the test tube rack 2 (203) being used to place a test tube (10) whose height is to be calibrated with a potassium iodide starch test paper (8); Two pulleys (204) are respectively rotatably connected to the support (201) and are located on both sides of the slide rail (202). The two pulleys (204) are connected by a sleeved belt (205), wherein a portion of the belt (205) is fixedly connected to the test tube rack (203); A power member seven (206) fixedly connected to the support (201) and transmission-connected to at least one of the pulleys seven (204), wherein the power member seven (206) is electrically connected to a control unit; an electric clamping jaw 3 (207) fixedly mounted in the support (201), the electric clamping jaw 3 (207) being electrically connected to a control unit, the electric clamping jaw 3 (207) being provided with two oppositely arranged clamping jaws 3 (208) at one end close to the test tube rack 2 (203), the two clamping jaws 3 (208) clamping the test tube (10) on the test tube rack 2 (203) in a releasable manner; and A test tube rack three (209) and a fixing seat (210) fixedly connected to the workbench (1), wherein the fixing seat (210) and the test tube rack three (209) are respectively used for installing the test tube (10) when the potassium iodide starch test paper (8) is installed and the test tube (10) when the potassium iodide starch test paper (8) is installed; The monitoring mechanism (9) also includes a second camera (902) arranged toward the fixing seat (210).

10. The automated device for Abel stability test according to claim 9, characterized in that: Also includes: A nitroglycerin reagent bottle (11) and a glycerin aqueous solution reagent bottle (12) are installed on the workbench (1), wherein the nitroglycerin reagent bottle (11) contains the nitroglycerin, and the glycerin aqueous solution reagent bottle (12) contains the glycerin aqueous solution.

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