Tabletting device for measuring contact angle of powder in laboratory

Abstract

The utility model discloses a powder contact angle measuring tabletting device in a laboratory, and relates to the technical field of lithium batteries, the device comprises a base, and further comprises a tabletting module and a driving module, the upper surface of the base is fixedly connected with a supporting column, the supporting column is hinged with a rotating cross rod, the other end of the rotating cross rod is provided with a fixed cylinder, and the fixed cylinder is connected with a motor. A driving module for driving the tabletting module to move is arranged on the rotating cross rod; the tabletting module comprises a lifting plate, mounting columns, alloy tabletting heads and mounting buckles, and the lower surface of the lifting plate is fixedly connected with the plurality of mounting columns. According to the utility model, the lifting assembly simultaneously drives the multiple groups of tabletting modules to move up and down, so that the tabletting convenience is ensured, the tabletting process is optimized, the tabletting time is greatly shortened, the tabletting efficiency is improved, the tabletting flatness and consistency can be ensured, the consistency of prepared powder sheets is better, the shape and density of each powder sheet are consistent, and the test accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and specifically relates to a tablet pressing device for measuring the contact angle of powder in a laboratory. Background Technique

[0002] At present, one of the research hotspots in the lithium battery industry is the surface modification of powder materials. Since the surface properties of powder materials are the basic properties for the application of powder materials, in production and scientific research practices, it is necessary to understand the wetting properties of solid powders.

[0003] The "sessile drop method" for measuring the wettability of powders has the advantages of strong result repeatability, high accuracy, and small human error, and is a commonly used method for measuring the wettability of powders at present. However, before measuring the contact angle of powders, it is necessary to perform tablet preparation on the powder materials so that the powder surface is flat and no small particles appear. The most commonly used tablet preparation method in the laboratory at present is to weigh a part of the powder into a special mold and manually press the tablet. Because it is manual tablet pressing, it is impossible to ensure that the surface shape and density of each tablet pressing are the same, which greatly affects the accuracy of the test.

[0004] Based on this, a tablet pressing device for measuring the contact angle of powder in a laboratory is now provided, which can eliminate the drawbacks of existing devices. Content of the Utility Model

[0005] The purpose of the utility model is to provide a tablet pressing device for measuring the contact angle of powder in a laboratory, so as to solve the problem that the manual tablet pressing method in the experimental tablet preparation process in the background technique easily affects the accuracy of the test.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tablet pressing device for measuring the contact angle of powder in a laboratory, including a base, and further including a tablet pressing module and a driving module. A support column is fixedly connected to the upper surface of the base. The support column is hinged with a rotating cross bar. A fixed cylinder is arranged at the other end of the rotating cross bar. A driving module for driving the movement of the tablet pressing module is arranged on the rotating cross bar;

[0008] The tablet pressing module includes a lifting plate, a mounting column, an alloy tablet pressing head, and a mounting buckle. A plurality of mounting columns are fixedly connected to the lower surface of the lifting plate. The alloy tablet pressing head is detachably arranged on the lower surface of the mounting column through the mounting buckle.

[0009] On the basis of the above technical solutions, the utility model further provides the following optional technical solutions:

[0010] In an alternative solution: The moving component includes a rotating handle, a telescopic rod, a rotating shaft, a gear, and a rack. A telescopic rod groove is formed in the side wall of the rotating cross bar. The inner side wall of the telescopic rod groove is slidably connected to a telescopic rod. The side wall of the rotating cross bar is rotatably connected through a bearing to a rotating shaft. One end of the rotating shaft outside the rotating cross bar is fixedly connected to a rotating handle. One end of the rotating shaft inside the rotating cross bar is fixedly connected to a gear. A rack groove is formed in the side wall of the telescopic rod. The inner side wall of the rack groove is fixedly connected to a rack. The gear meshes with the rack. The side wall of the telescopic rod is fixedly connected to a fixed cylinder.

[0011] In an alternative solution: The lifting component includes an adjusting screw rod and a threaded rod. The inner side wall of the fixed cylinder is provided with threads. The fixed cylinder is threadedly connected to a threaded rod. The top end of the threaded rod is fixedly connected to an adjusting screw rod. One end of the threaded rod away from the adjusting screw rod is rotatably connected to a lifting plate through a bearing.

[0012] In an alternative solution: The side wall of the adjusting screw rod is rotatably connected through a bearing to a height measuring cylinder. The side wall of the height measuring cylinder is provided with scales.

[0013] In an alternative solution: A moving plate groove is formed in the upper surface of the base. The inner side wall of the moving plate groove is slidably connected to a moving plate. A plurality of feeding die grooves are formed in the upper surface of the moving plate. Feeding dies are placed in the feeding die grooves. The plurality of feeding dies correspond to a plurality of alloy pressing heads one by one.

[0014] In an alternative solution: Four guide post holes are formed in the side walls of both the lifting plate and the moving plate. The inner side walls of the guide post holes are slidably connected to guide posts.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The present utility model drives multiple groups of pressing modules to move up and down simultaneously through the lifting component, ensuring the convenience of pressing, optimizing the pressing process, significantly shortening the pressing time, improving the pressing efficiency, and can ensure the flatness and consistency of pressing. The formed powder thin sheets have good consistency, and the shape and density of each powder sheet are the same, improving the test accuracy.

[0017] 2. The present utility model can monitor the descending height of the alloy pressing head in real time through the measurement reading of the height measuring cylinder, avoiding the phenomenon of powder breakage during the pressing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present utility model.

[0019] Figure 2 It is a structural schematic diagram of the interior of the fixed cylinder of the present utility model.

[0020] Figure 3 This is a schematic structural diagram of the lifting component of the present utility model.

[0021] Figure 4 Of the present utility model Figure 3 Enlarged view at location A.

[0022] Figure 5 This is a schematic structural diagram of the telescopic rod of the present utility model.

[0023] Figure 6 This is a schematic structural diagram of the moving plate of the present utility model.

[0024] Annotation of reference numerals in the drawings: 1 base, 2 support column, 3 rotating handle, 4 rotating cross bar, 5 rack groove, 6 telescopic rod, 7 lifting plate, 8 guiding column, 9 moving plate, 10 feeding die, 11 height measuring cylinder, 12 adjusting screw rod, 13 threaded rod, 14 fixed cylinder, 15 rotating shaft, 16 gear, 17 rack, 18 mounting column, 19 alloy pressing head, 20 mounting buckle, 21 moving component, 22 pressing module, 23 lifting component. Detailed implementation manners

[0025] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0026] In one embodiment, as Figures 1-6 shown, a laboratory powder contact angle pressing device includes a base 1, and also includes a pressing module 22 and a driving module. The upper surface of the base 1 is fixedly connected with a support column 2. The support column 2 is hinged with a rotating cross bar 4. The other end of the rotating cross bar 4 is provided with a fixed cylinder 14. A driving module for driving the pressing module 22 to move is arranged on the rotating cross bar 4;

[0027] The pressing module 22 includes a lifting plate 7, a mounting column 18, an alloy pressing head 19, and a mounting buckle 20. A plurality of mounting columns 18 are fixedly connected to the lower surface of the lifting plate 7. The alloy pressing head 19 is detachably arranged on the lower surface of the mounting column 18 through the mounting buckle 20.

[0028] In one embodiment, as Figure 5As shown, the moving component 21 includes a rotating handle 3, a telescopic rod 6, a rotating shaft 15, a gear 16, and a rack 17. A telescopic rod groove is provided on the side wall of the rotating cross bar 4, and the inner side wall of the telescopic rod groove is slidably connected to the telescopic rod 6. The side wall of the rotating cross bar 4 is rotatably connected through a bearing to the rotating shaft 15. One end of the rotating shaft 15 outside the rotating cross bar 4 is fixedly connected to the rotating handle 3, and one end of the rotating shaft 15 inside the rotating cross bar 4 is fixedly connected to the gear 16. A rack groove 5 is provided on the side wall of the telescopic rod 6, and the inner side wall of the rack groove 5 is fixedly connected to the rack 17. The gear 16 meshes with the rack 17, and the side wall of the telescopic rod 6 is fixedly connected to the fixed cylinder 14. Rotate the rotating handle 3, the rotating handle 3 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the gear 16 to rotate, and the gear 16 drives the telescopic rod 6 to move by cooperating with the rack 17, moving a plurality of alloy pressing heads 19 to directly above a plurality of feeding molds 10.

[0029] In one embodiment, as Figure 2 and Figure 3 shown, the lifting component 23 includes an adjusting screw rod 12 and a threaded rod 13. The inner side wall of the fixed cylinder 14 is provided with threads, and the fixed cylinder 14 is threadedly connected to the threaded rod 13. The top end of the threaded rod 13 is fixedly connected to the adjusting screw rod 12, and one end of the threaded rod 13 away from the adjusting screw rod 12 is rotatably connected to the lifting plate 7 through a bearing. Rotate the adjusting screw rod 12, the adjusting screw rod 12 drives the threaded rod 13 to rotate, the threaded rod 13 cooperates with the fixed cylinder 14 to descend, the threaded rod 13 drives the lifting plate 7 to descend, and the lifting plate 7 drives a plurality of alloy pressing heads 19 to descend, so that the alloy pressing heads 19 enter the feeding molds 10 for pressing. Multiple groups of pressing operations can be carried out simultaneously, ensuring the convenience of pressing, optimizing the pressing process, significantly shortening the pressing time, improving the pressing efficiency, and ensuring the flatness and consistency of pressing. The manufactured powder thin sheets have good consistency, and the shape and density of each powder sheet are the same;

[0030] The adjusting screw rod 12 is rotatably connected to the lifting plate 7, and the lifting plate 7 can be rotated to facilitate the experimenter to observe from different directions and angles.

[0031] In one embodiment, as Figure 2 and Figure 3 shown, the side wall of the adjusting screw rod 12 is rotatably connected to a height measuring cylinder 11 through a bearing, and the side wall of the height measuring cylinder 11 is provided with scales. The height of the descent of the alloy pressing head 19 can be monitored in real time through the measurement reading of the height measuring cylinder 11 to avoid breakage of the powder during the pressing process.

[0032] In one embodiment, as Figure 1As shown, a moving plate groove is formed on the upper surface of the base 1. A moving plate 9 is slidably connected to the inner side wall of the moving plate groove. A plurality of feeding die grooves are formed on the upper surface of the moving plate 9. Feeding dies 10 are placed in the feeding die grooves. The plurality of feeding dies 10 correspond to a plurality of alloy pressing head tips 19 one by one. The feeding die grooves facilitate the limiting and fixing of the feeding dies 10, and the moving plate 9 for placing feeding dies 10 of different sizes can be conveniently replaced by a sliding insertion method.

[0033] In one embodiment, as Figure 1 shown, four guide post holes are formed on the side walls of the lifting plate 7 and the moving plate 9. Guide posts 8 are slidably connected to the inner side walls of the guide post holes. The lifting plate 7 is limited and guided to prevent the alloy pressing head tip 19 from deviating during the descending process and being unable to cooperate with the feeding die 10 for pressing.

[0034] The above embodiment discloses a laboratory powder contact angle measuring pressing device. Slide the moving plate 9 into the moving plate groove, and then place a plurality of feeding dies 10 into the feeding die grooves on the moving plate 9. Weigh multiple samples of the same weight and place them into the feeding dies 10. The feeding die grooves facilitate the limiting and fixing of the feeding dies 10, and the moving plate 9 for placing feeding dies 10 of different sizes can be conveniently replaced by a sliding insertion method;

[0035] Then, install the alloy pressing head tip 19 matching the size of the feeding die 10 on the mounting post 18 through the mounting buckle 20. The alloy pressing head tip 19 can be more conveniently installed through the mounting buckle 20;

[0036] Rotate the rotating handle 3. The rotating handle 3 drives the rotating shaft 15 to rotate. The rotating shaft 15 drives the gear 16 to rotate. The gear 16 drives the telescopic rod 6 to move through cooperation with the rack 17, and moves a plurality of alloy pressing head tips 19 directly above a plurality of feeding dies 10;

[0037] Then, insert the four guide posts 8 into the guide post holes of the lifting plate 7 and the moving plate 9 to limit and guide the lifting plate 7, preventing the alloy pressing head tip 19 from deviating during the descending process and being unable to cooperate with the feeding die 10 for pressing;

[0038] Rotate the adjusting screw rod 12. The adjusting screw rod 12 drives the threaded rod 13 to rotate. The threaded rod 13 cooperates with the fixed cylinder 14 to descend. The threaded rod 13 drives the lifting plate 7 to descend. The lifting plate 7 drives a plurality of alloy pressing head tips 19 to descend, so that the alloy pressing head tips 19 enter the feeding dies 10 for pressing. Multiple groups of pressing operations can be carried out simultaneously, ensuring the convenience of pressing, optimizing the pressing process, significantly shortening the pressing time, improving the pressing efficiency, and ensuring the flatness and consistency of pressing. The formed powder flakes have good consistency, and the shape and density of each powder flake are the same;

[0039] The height of the alloy pressing head 19 descending can be monitored in real time through the measurement reading of the height measuring cylinder 11, avoiding the phenomenon of powder breakage during the tabletting process.

[0040] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A laboratory powder contact angle tableting device, characterized in that: It comprises a base (1), a tablet pressing module (22) and a driving module, wherein the upper surface of the base (1) is fixedly connected to a support column (2), the support column (2) is hingedly connected to a rotating cross bar (4), the other end of the rotating cross bar (4) is provided with a fixing cylinder (14), and the rotating cross bar (4) is provided with a driving module for driving the tablet pressing module (22) to move; The tablet pressing module (22) comprises a lifting plate (7), a mounting column (18), an alloy tablet pressing head (19), and a mounting buckle (20); a plurality of mounting columns (18) are fixedly connected to the lower surface of the lifting plate (7); and an alloy tablet pressing head (19) is detachably provided on the lower surface of the mounting column (18) via the mounting buckle (20).

2. A laboratory powder contact angle measuring tablet pressing device according to claim 1, characterized in that: The driving module comprises a moving assembly (21) for driving the tablet pressing module (22) to move horizontally and a lifting assembly (23) for driving the tablet pressing module (22) to move longitudinally. The moving assembly (21) comprises a rotating handle (3). A lifting and retracting rod (6) is slidably arranged inside the rotating cross bar (4). A rotating shaft (15) is rotatably connected to the side wall of the rotating cross bar (4) through a bearing. The rotating handle (3) is arranged at one end of the rotating shaft (15) located outside the rotating cross bar (4). A gear (16) is fixedly connected to one end of the rotating shaft (15) located inside the rotating cross bar (4). A rack groove (5) is provided on the side wall of the lifting and retracting rod (6). A rack (17) is fixedly connected to the inner side wall of the rack groove (5). The gear (16) meshes with the rack (17). The side wall of the lifting and retracting rod (6) is fixedly connected to the fixed cylinder (14).

3. A laboratory powder contact angle measuring tablet pressing device according to claim 2, characterized in that: The lifting assembly (23) comprises an adjusting rotary rod (12), the fixing cylinder (14) is threadedly connected to a threaded rod (13), the top end of the threaded rod (13) is fixedly connected to the adjusting rotary rod (12), and one end of the threaded rod (13) away from the adjusting rotary rod (12) is rotatably connected to the lifting plate (7) via a bearing.

4. A laboratory powder contact angle measuring tablet pressing device according to claim 3, characterized in that: The side wall of the adjusting rotary rod (12) is rotatably connected to a height measuring cylinder (11) with a scale via a bearing.

5. A laboratory powder contact angle measuring tablet pressing device according to claim 1, characterized in that: The upper surface of the base (1) is provided with a movable plate groove, the inner side wall of the movable plate groove is slidably connected with a movable plate (9), the upper surface of the movable plate (9) is provided with a plurality of feeding mold grooves, a feeding mold (10) is placed in the feeding mold grooves, and the plurality of feeding molds (10) correspond one-to-one to a plurality of alloy pressing heads (19).

6. A laboratory powder contact angle measuring tablet pressing device according to claim 5, characterized in that: The side walls of the lifting plate (7) and the movable plate (9) are each provided with four guide post holes, and the inner side walls of the guide post holes are slidably connected with guide posts (8).

Images