Full-automatic volumetric flask cap pulling machine

Abstract

The invention discloses a full-automatic volumetric flask cap pulling machine, and relates to the technical field of laboratory instruments, the full-automatic volumetric flask cap pulling machine comprises a base and a volumetric flask, the top of the base is provided with a support and a placing seat, and the placing seat is detachably arranged at the top of the base; the volumetric flask is placed on the base through the placing seat; a first sliding rail and a second sliding rail are sequentially installed on the side, close to the placing base, of the support from bottom to top, a first sliding base is slidably installed on the first sliding rail, the first sliding base and a first lead screw are installed in a threaded mode, the first lead screw is connected with a driving shaft of a first motor, and the first motor is installed on the support. And a transverse clamping jaw assembly is mounted on the first sliding seat. Under the condition of continuous large-scale operation, the experiment efficiency can be improved. The transverse clamping jaw assembly is a movable clamping jaw and can be attached to volumetric flasks of different specifications to complete fixation. The cap pulling clamping jaw assembly can move downwards by a corresponding distance according to volumetric flasks of different specifications, and the bottle caps are accurately clamped. And the volumetric flasks are fixed on the placing seats without being damaged in the cap pulling process.

Description

Technical Field

[0001] The present invention relates to the technical field of laboratory instruments, and particularly to a fully automated volumetric flask cap remover. Background Art

[0002] Volumetric flasks are commonly used instruments for accurately preparing solutions in laboratories in multiple fields. With the improvement of the laboratory automation level, more and more laboratories have started to use automated instruments to replace traditional manual operations. When using a volumetric flask, cap removal and capping operations are involved.

[0003] 1. At present, the cap removal and capping operations of volumetric flasks in laboratories are mainly manual operations by operators. In the case of continuous large - batch operations, it is easy to get fatigued or numb, resulting in incorrect cap matching.

[0004] 2. Most of the commonly used solvents in laboratories are corrosive and harmful to the human body. Especially organic solvents are often volatile, toxic or highly toxic, and are not very suitable for manual operation.

[0005] 3. The liquid in the bottle may contain corrosive solvents. The body of the volumetric flask is smooth, and it is easy to fall off during the process of manually removing the cap, which is not very suitable for manual operation.

[0006] 4. During the cap removal process, the splashing and touching of the liquid increase the risks of sample contamination, damage and infection of laboratory personnel.

[0007] 5. There is no automated device for cap removal and capping operations of volumetric flasks on the market.

[0008] Therefore, the present invention hereby proposes a fully automated volumetric flask cap remover. Summary of the Invention

[0009] The purpose of the present invention is to solve the defects existing in the prior art, and to propose a fully automated volumetric flask cap remover.

[0010] To achieve the above - mentioned purpose, the present invention adopts the following technical solutions:

[0011] A fully automated volumetric flask cap remover includes a base and a volumetric flask. A bracket and a placement seat are installed on the top of the base, and the placement seat is detachably arranged on the top of the base; the volumetric flask is placed on the base through the placement seat;

[0012] On one side of the bracket close to the placement seat, a first slide rail and a second slide rail are sequentially installed from bottom to top. A first slide seat is slidably installed on the first slide rail, and the first slide seat is threadedly installed with a first lead screw. The first lead screw is connected to the drive shaft of a first motor, and the first motor is installed on the bracket. A transverse jaw assembly is installed on the first slide seat;

[0013] A second sliding seat is slidably mounted on the second sliding rail, and the second sliding seat is threadedly mounted with a second lead screw. The second lead screw is connected to the drive shaft of a second motor, and the second motor is mounted on the bracket. A cap-pulling jaw assembly is mounted on the second sliding seat.

[0014] Further, the lateral jaw assembly includes a first motor and a clamping assembly mounted on the first sliding seat. The clamping assembly includes a housing mounted on the first sliding seat. The drive shaft of the first motor is connected to a lead screw. A threaded hole seat threadedly mounted with the lead screw is provided in the housing. The upper side of the threaded hole seat is movably connected to two L-shaped pull rods through a shaft rod, and the two L-shaped pull rods are respectively rotatably mounted on the housing through a central shaft. One end of each of the two L-shaped pull rods away from the shaft rod is movably connected to a slider. The two sliders are both slidably mounted on the front surface of the housing. One mounting seat is respectively mounted at one end of the two sliders away from the housing, and a lateral clamp is movably mounted at the front end of each of the two mounting seats. The two lateral clamps cooperate with each other to position the body of the volumetric flask.

[0015] Further, the mounting seats on the same side of the lateral clamp are movably mounted through a rotating shaft and a sliding rod. A torsion spring is mounted on the rotating shaft. An arc-shaped sliding groove matching the sliding rod is provided on the mounting seat.

[0016] Further, the cap-pulling jaw assembly includes a housing mounted on the second sliding seat. A sliding rail box is rotatably mounted on the lower side of the housing. A rotating motor and a clamping motor are mounted inside the housing. A driving gear is mounted at the lower end of the drive shaft of the rotating motor. The sliding rail box is rotatably mounted on the bottom of the housing through a rotating seat. A driven gear is mounted above the rotating seat, and the driving gear is meshed with the driven gear for transmission;

[0017] The drive shaft of the clamping motor penetrates through the center of the driven gear and extends into the sliding rail box and is mounted with a driving gear. Two racks are symmetrically and slidably mounted in the sliding rail box. The two racks are symmetrically distributed on both sides of the driving gear, and the driving gear is simultaneously meshed with the two racks for transmission;

[0018] One sliding plate is mounted on the lower side of each of the two racks. A V-shaped clamp is mounted on the lower side of each sliding plate. An arc-shaped thin sheet is movably mounted on the lower side of each of the two V-shaped clamps.

[0019] Further, a spring sliding shaft is mounted on the lower side of each of the two V-shaped clamps, and an arc-shaped thin sheet is mounted on each spring sliding shaft.

[0020] Further, the spring sliding shaft includes a transverse shaft slidably mounted on the lower side of the V-shaped clamp. A spring is mounted on the transverse shaft. One end of the transverse shaft is slidably mounted on the lower side of the V-shaped clamp, and the other end of the transverse shaft is fixedly mounted with the arc-shaped thin sheet.

[0021] Further, arc-shaped concave openings are provided on the side of the two arc-shaped thin sheets close to each other, and the arc-shaped concave openings cooperate with the cap of the volumetric flask.

[0022] Further, a through hole is formed in the center of the driven gear, and the diameter of the through hole is larger than the diameter of the drive shaft of the clamping motor.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] In the case of continuous large-batch operations in the present invention, the experimental efficiency can be improved. The transverse jaw assembly is a movable jaw, which can fit different specifications of volumetric flasks for fixation. The cap-pulling jaw assembly can move down a corresponding distance according to different specifications of volumetric flasks and accurately clamp the bottle cap. The volumetric flask is fixed on the placement seat during the cap-pulling process and will not be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention.

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a front view of the present invention;

[0028] Figure 3 is a schematic diagram of the structure of the transverse jaw assembly;

[0029] Figure 4 is a partial cross-sectional view of the transverse jaw assembly;

[0030] Figure 5 is a rear view of the transverse jaw assembly;

[0031] Figure 6 is a schematic diagram of the external structure of the first motor and the housing;

[0032] Figure 7 is a schematic internal cross-sectional view of the first motor and the housing;

[0033] Figure 8 is a schematic diagram of the structure of the cap-pulling jaw assembly;

[0034] Figure 9 is a partial cross-sectional view of the cap-pulling jaw assembly;

[0035] Figure 10 is a schematic diagram of the installation of the slide rail box and the slide plate at the bottom of the outer shell;

[0036] Figure 11 is Figure 10 the bottom view of the slide rail box, the slide plate and the outer shell in

[0037] Figure 12 is Figure 10Schematic diagram of A-A cross-section;

[0038] Figure 13 is Figure 11 Schematic diagram of B-B cross-section;

[0039] Figure 14 is a schematic diagram of the clamping of the bottle cap by the V-shaped clamp and the arc-mouth thin sheet.

[0040] In the figure: 1 base, 2 bracket, 3 placement seat, 4 first slide rail, 5 first slide seat, 6 first lead screw, 7 first motor, 8 transverse jaw assembly, 9 second slide rail, 10 second slide seat, 11 second lead screw, 12 second motor, 13 cap-pulling jaw assembly, 14 volumetric flask, 15 bottle cap;

[0041] 81 Motor 1, 811 Lead screw, 82 Clamping assembly, 821 Housing, 822 Slide block, 823 Threaded hole seat, 824 Shaft rod, 825 L-shaped pull rod, 826 Central axis, 83 Mounting seat, 84 Transverse clamp, 841 Rotating shaft, 842 Torsion spring, 843 Slide rod, 844 Arc-shaped chute,

[0042] 131 Outer shell, 132 Slide rail box, 133 Slide plate, 134 V-shaped clamp, 135 Arc-mouth thin sheet, 136 Spring slide shaft, 137 Rotating motor, 138 Clamping motor, 139 Rotating seat, 1310 Driving gear, 1311 Driven gear, 1312 Driving gear, 1313 Rack. Specific implementation mode

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention;

[0044] Refer to Figure 1-14 , a fully automated volumetric flask cap-pulling machine, including a base 1 and a volumetric flask 14. A bracket 2 and a placement seat 3 are installed on the top of the base 1, and the placement seat 3 is detachably arranged on the top of the base 1; the volumetric flask 14 is placed on the base 1 through the placement seat 3;

[0045] On one side of the bracket 2 close to the placement seat 3, a first slide rail 4 and a second slide rail 9 are installed in sequence from bottom to top. A first slide seat 5 is slidably installed on the first slide rail 4, and the first slide seat 5 is threadedly installed with a first lead screw 6. The first lead screw 6 is connected to the drive shaft of a first motor 7, and the first motor 7 is installed on the bracket 2. A transverse jaw assembly 8 is installed on the first slide seat 5;

[0046] A second slide seat 10 is slidably installed on the second slide rail 9, and the second slide seat 10 is threadedly installed with a second lead screw 11. The second lead screw 11 is connected to the drive shaft of a second motor 12, and the second motor 12 is installed on the bracket 2. A cap-pulling jaw assembly 13 is installed on the second slide seat 10.

[0047] Further, the horizontal jaw assembly 8 includes a first motor 81 and a clamping assembly 82 mounted on the first slide 5. The clamping assembly 82 includes a housing 821 mounted on the first slide 5. The drive shaft of the first motor 81 is connected to a lead screw 811. A threaded hole seat 823 threadedly mounted with the lead screw 811 is provided in the housing 821. The upper side of the threaded hole seat 823 is movably connected to two L-shaped pull rods 825 through a shaft rod 824. The two L-shaped pull rods 825 are respectively rotatably mounted on the housing 821 through a central shaft 826. One end of each of the two L-shaped pull rods 825 away from the shaft rod 824 is movably connected to a slider 822. The two sliders 822 are both slidably mounted on the front surface of the housing 821. A mounting seat 83 is respectively mounted at one end of each of the two sliders 822 away from the housing 821. A horizontal clamp 84 is movably mounted at the front end of each of the two mounting seats 83. The two horizontal clamps 84 cooperate with each other to position the body of the volumetric flask 14. An elastic gasket is mounted on the inner side of the horizontal clamp 84, which can increase the friction force in contact with the body of the flask, ensure the stability of subsequent pressing on the volumetric flask 14, and avoid abrasion of the body of the flask.

[0048] Further, the mounting seats 83 on the same side of the horizontal clamp 84 are movably mounted through a rotating shaft 841 and a sliding rod 843. A torsion spring 842 is mounted on the rotating shaft 841. An arc-shaped sliding groove 844 matching the sliding rod 843 is provided on the mounting seat 83.

[0049] When the first motor 81 drives the lead screw 811, it controls the threaded hole seat 823 to slide in the housing 821. The threaded hole seat 821 uses the shaft rod 824 to simultaneously pull the two L-shaped pull rods 825 to rotate in the housing 821 with the central shaft 826 as the center. When the two L-shaped pull rods 825 rotate, they can respectively drive a slider 822, a mounting seat 83, and a horizontal clamp 84 to slide relative to the front side of the housing 821.

[0050] The horizontal clamp 84 and the sliding rod 843 can rotate at an angle with the rotating shaft 841 as the center. The torsion spring 842 therein is used to help the horizontal clamp 84 reset.

[0051] Further, the cap-pulling jaw assembly 13 includes a housing 131 mounted on the second slide 10. A slide rail box 132 is rotatably mounted on the lower side of the housing 131. A rotating motor 137 and a clamping motor 138 are mounted inside the housing 131. A driving gear 1310 is mounted at the lower end of the drive shaft of the rotating motor 137. The slide rail box 132 is rotatably mounted on the bottom of the housing 131 through a rotating seat 139. A driven gear 1311 is mounted above the rotating seat 139. The driving gear 1310 is meshed with the driven gear 1311 for transmission;

[0052] The drive shaft of the clamping motor 138 passes through the center of the driven gear 1311, extends into the slide rail box 132 and is equipped with a drive gear 1312. Two racks 1313 are symmetrically and slidably installed in the slide rail box 132. The two racks 1313 are symmetrically distributed on both sides of the drive gear 1312, and the drive gear 1312 meshes with the two racks 1313 simultaneously for transmission;

[0053] A slide plate 133 is installed on the lower side of each of the two racks 1313. A V-shaped clamp 134 is installed on the lower side of each slide plate 133. An arc-shaped thin sheet 135 is movably installed on the lower sides of the two V-shaped clamps 134. An elastic pressure pad is also installed on the surface of the V-shaped clamp 134. The elastic pressure pad can increase the friction force to ensure that the subsequent V-shaped clamp 134 and the arc-shaped thin sheet 135 can stably apply a force to the bottle cap 15.

[0054] Furthermore, a spring slide shaft 136 is installed on the lower side of each of the two V-shaped clamps 134, and the arc-shaped thin sheet 135 is installed on the spring slide shaft 136.

[0055] Furthermore, the spring slide shaft 136 includes a transverse shaft slidably installed on the lower side of the V-shaped clamp 134. A spring is installed on the transverse shaft. One end of the transverse shaft is slidably installed on the lower side of the V-shaped clamp 134, and the other end of the transverse shaft is fixedly installed on the arc-shaped thin sheet 135. The spring slide shaft 136 is used to apply an elastic force to the arc-shaped thin sheet 135 so that the arc-shaped thin sheet 135 can maintain the applied force when clamping the bottle cap 15, thereby facilitating the subsequent operations of removing the bottle cap 15 and rotating the bottle cap. In addition, the spring in the spring slide shaft 136 can also make the arc-shaped thin sheet 135 applicable to volumetric flasks 14 and bottle caps 15 of different specifications. As Figure 14 shown in the figure, specifically, the springs on both sides apply elastic forces to the arc-shaped thin sheets 135 on the same side respectively, prompting the arc-shaped thin sheets 135 on both sides to be able to clamp the groove of the bottle cap 15, so that the arc-shaped thin sheet 135 can fit different specifications of volumetric flasks 14 and firmly clamp the bottle cap 15. After the arc-shaped thin sheet 135 clamps the groove of the bottle cap 15, the operations of removing the bottle cap 15 and rotating the bottle cap can be facilitated. After the arc-shaped thin sheet 135 clamps the groove of the bottle cap 15, the operations of removing the bottle cap 15 and rotating the bottle cap can be facilitated.

[0056] Furthermore, arc-shaped concave openings are provided on the sides of the two arc-shaped thin sheets 135 close to each other, and the arc-shaped concave openings are matched with the bottle cap 15 of the volumetric flask 14. When the arc-shaped thin sheet 135 clamps the bottle cap 15, the arc-shaped concave opening just clamps the groove of the bottle cap 15.

[0057] Furthermore, a through hole is provided in the center of the driven gear 1311, and the diameter of the through hole is larger than the diameter of the drive shaft of the clamping motor 138.

[0058] The present invention further includes a host computer, which is used to control the switching actions of the first motor 7, the second motor 12, the first motor 81, the rotating motor 137, and the clamping motor 138.

[0059] During use, place the volumetric flask 14 on the placement seat 13 on the base 1. Issue a cap-removing command through the host computer. First, drive the first lead screw 6 to rotate by the first motor 7, and then control the first sliding seat 5 to slide downward along the first slide rail 4. At this time, the horizontal jaw assembly 8 can be controlled to move downward. The horizontal frame 84 in the horizontal jaw assembly 8 gradually contacts and presses down on the body of the volumetric flask 14 to fix it. During this process, as the first motor 7 continues to drive, the horizontal frame 84 moves downward. The horizontal frame 84 can rotate at a certain angle under the cooperation of the rotating shaft 841 and the slide rod 843. The purpose is to clamp and position volumetric flasks 14 of different sizes; after the volumetric flask 14 is stably clamped, then according to different volumetric flasks 14, drive the second lead screw 11 to rotate by the second motor 12, and the second lead screw 11 drives the second sliding seat 10 and the cap-removing jaw assembly 13 to move downward to a set distance; the clamping motor 138 controls the driving gear 1312 to rotate. Since the driving gear 1312 meshes and drives with the racks 1313 on both sides at the same time, the two racks 1313 can be controlled to move away from each other, thereby driving the lower slide plate 133, the V-shaped clamp 134, and the arc-shaped thin plate 135 to move away from each other at the same time. With the common cooperation of the V-shaped clamp 134 and the arc-shaped thin plate 135, the cap 15 of the volumetric flask 14 can be clamped.

[0060] Then drive the driving gear 1310 to mesh and drive the driven gear 1311, as well as the bottom rotating seat 139, the slide rail box 132, the V-shaped clamp 134, and the arc-shaped thin plate 135 to rotate simultaneously by the rotating motor 137. By rotating, the cap 15 is loosened, and then lift it up to pull out the cap 15 from the volumetric flask 14. After pulling out, the horizontal jaw assembly 8 moves upward and rebounds to release the body of the flask, and wait to remove the volumetric flask 14.

[0061] During the above process of rotating the cap 15, the clamping motor 138 and the rotating motor 137 rotate synchronously to ensure that the cap 15 is not loosened when rotating the cap 15.

[0062] After the corresponding experimental operation is completed, move the volumetric flask 14 back into the placement seat 3. The host computer issues a cap-covering command to control the cap-removing jaw assembly 13 to move downward to the bottle mouth to release the cap, and complete the cap-covering operation.

[0063] By replacing the placement seat 3 of different models, volumetric flasks 14 of different specifications can be placed, and the cap-removing operation for volumetric flasks 14 of different specifications can be flexibly realized. The present invention can be adapted to the cap-removing operations of volumetric flasks with capacities of 5 ml, 10 ml, 20 ml, 25 ml, 50 ml, 100 ml, 150 ml, 200 ml, 250 ml, and even larger capacities of 500 ml and 1000 ml.

Claims

1. A fully automatic volumetric flask capping machine, comprising a base (1) and a volumetric flask (14), characterized in that: The top of the base (1) is provided with a bracket (2) and a placement seat (3), and the placement seat (3) is detachably arranged on the top of the base (1); the volumetric flask (14) is placed on the base (1) via the placement seat (3); A first slide rail (4) and a second slide rail (9) are sequentially installed from bottom to top on one side of the bracket (2) close to the placement seat (3); a first slide seat (5) is slidably installed on the first slide rail (4); the first slide seat (5) is threadedly installed with a first screw rod (6); the first screw rod (6) is connected to a driving shaft of a first motor (7); the first motor (7) is installed on the bracket (2); and a transverse clamping claw assembly (8) is installed on the first slide seat (5); A second slide seat (10) is slidably mounted on the second slide rail (9), and the second slide seat (10) is threadedly mounted on a second screw rod (11), the second screw rod (11) is connected to a drive shaft of a second motor (12), the second motor (12) is mounted on the bracket (2), and a cap-pulling clamping claw assembly (13) is mounted on the second slide seat (10).

2. A fully automatic volumetric bottle capping machine according to claim 1, characterized in that: The transverse clamping jaw assembly (8) includes a motor (81) mounted on a first slide (5) and a clamping assembly (82), wherein the clamping assembly (82) includes a housing (821) mounted on the first slide (5), a driving shaft of the motor (81) is connected to a lead screw (811), a thread hole seat (823) threadedly mounted on the lead screw (811) is provided in the housing (821), the upper side of the thread hole seat (823) is movably connected to two L-shaped pull rods (825) via a shaft (824), and the two L-shaped pull rods (825) are respectively connected via a central The spindle (826) is rotatably mounted on the shell (821); one end of the two L-shaped pull rods (825) away from the shaft (824) is movably connected to a slider (822); the two sliders (822) are slidably mounted on the front surface of the shell (821); one end of the two sliders (822) away from the shell (821) is respectively mounted with a mounting seat (83); and the front ends of the two mounting seats (83) are movably mounted with transverse clamps (84); the two transverse clamps (84) cooperate with each other to position the bottle body of the volumetric flask (14).

3. A fully automated volumetric bottle capping machine according to claim 2, characterized in that: The mounting seats (83) on the same side of the transverse clamp (84) are movably mounted via a rotating shaft (841) and a sliding rod (843); a torsion spring (842) is mounted on the rotating shaft (841); and an arc-shaped sliding groove (844) matching the sliding rod (843) is provided on the mounting seat (83).

4. A fully automatic volumetric bottle capping machine according to claim 1, characterized in that: The capping clamping claw assembly (13) comprises a housing (131) mounted on the second sliding seat (10); a slide rail box (132) is rotatably mounted on the lower side of the housing (131); a rotating motor (137) and a clamping motor (138) are mounted inside the housing (131); a driving gear (1310) is mounted on the lower end of the driving shaft of the rotating motor (137); the slide rail box (132) is rotatably mounted on the bottom of the housing (131) through a rotating seat (139); a driven gear (1311) is mounted above the rotating seat (139); and the driving gear (1310) and the driven gear (1311) are meshed and transmitted; The driving shaft of the clamping motor (138) passes through the center of the driven gear (1311) and extends into the slide rail box (132) and is equipped with a driving gear (1312). Two racks (1313) are symmetrically slidably installed in the slide rail box (132). The two racks (1313) are symmetrically distributed on both sides of the driving gear (1312), and the driving gear (1312) is meshed with the two racks (1313) for transmission at the same time. A slide plate (133) is installed on the lower side of the two racks (1313), a V-shaped clamp (134) is installed on the lower side of each slide plate (133), and an arc-shaped thin sheet (135) is movably installed on the lower side of the two V-shaped clamps (134).

5. A fully automatic volumetric bottle capping machine according to claim 4, characterized in that: The lower sides of the two V-shaped clamps (134) are both provided with spring slide shafts (136), and the spring slide shafts (136) are both provided with arc-shaped thin sheets (135).

6. A fully automatic volumetric bottle capping machine according to claim 5, characterized in that: The spring sliding shaft (136) comprises a transverse shaft fixedly slidably mounted on the lower side of the V-shaped clamp (134), a spring being mounted on the transverse shaft, one end of the transverse shaft being slidably mounted on the lower side of the V-shaped clamp (134), and the other end of the transverse shaft being fixedly mounted on the arc-shaped thin sheet (135).

7. A fully automatic volumetric bottle capping machine according to claim 6, characterized in that: The two arc-shaped thin sheets (135) are each provided with an arc-shaped notch on one side close to each other, and the arc-shaped notch matches with the bottle cap (15) of the volumetric flask (14).

8. A fully automatic volumetric bottle capping machine according to claim 6, characterized in that: A through hole is provided at the center of the driven gear (1311), and the diameter of the through hole is larger than the diameter of the driving shaft of the clamping motor (138).

Images