Rotary multi-channel solid chemical material weighing device

Abstract

The utility model discloses a kind of rotary multi-channel solid chemical material weighing equipment, it is related to chemical raw material weighing technical field. Including partition table, the surface of the partition table is provided with telescopic support rod, the movable end of the telescopic support rod is fixedly installed with tray, the fixed end of telescopic support rod is fixedly installed with bottom disc, the tray is arranged in parallel with partition table, rotation weighing mechanism is provided on the tray, and installation bottom disc is provided on the top surface of the partition table and located inside bracket. The channel solid chemical material delivery distribution equipment, through stepping motor drive rotating disc accurate rotation, the equidistantly opened round hole of centrifugal tube tray can be adapted multiple centrifugal tube synchronous loading material. Compared with the mode that traditional single-channel equipment needs to weigh each sample, the equipment can complete multiple samples simultaneously with sample injection and weighing, substantially reduce operation cycle, especially suitable for batch sample analysis scene, significantly improve experimental or production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical raw material weighing equipment, specifically a rotary multi-channel solid chemical material weighing device. Background Technology

[0002] In the experimental and production processes of various fields such as chemical analysis, materials research and development, and pharmaceutical testing, the accurate allocation of solid samples is a key link to ensure the reliability of experimental data and the stability of production processes. Traditional solid sample weighing operations rely heavily on manual labor, requiring operators to manually weigh different types of solid powders and dispense them into corresponding containers. This method is not only labor-intensive but also highly susceptible to human error. Currently, single-channel equipment can only dispense one test tube and one powder at a time. When dealing with large batches of samples or multiple types of powders, frequent material and test tube changes are necessary, resulting in a cumbersome and inefficient process. In large-scale experiments or continuous production scenarios, the inefficiency of single-channel equipment leads to excessively long overall process times, failing to match the efficient experimental and production rhythms. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a rotary multi-channel solid chemical material weighing device, comprising a partition platform, a telescopic support rod extending through the surface of the partition platform, a tray fixedly mounted on the movable end of the telescopic support rod, and a base plate fixedly mounted on the fixed end of the telescopic support rod, the tray being arranged parallel to the partition platform, a rotary weighing mechanism being mounted on the tray, a mounting base being mounted on the top surface of the partition platform and located inside the support, a fixed sample injector being fixedly mounted on the mounting base by bolts, a lifting drive mechanism being mounted on the bottom of the partition platform via a spring mounting sleeve, the spring mounting sleeve extending through the base plate, the top end of the spring mounting sleeve being fixedly mounted to the bottom of the partition platform, and a spring column plate being fixedly mounted on the other end, the spring mounting sleeve passing through the lifting drive mechanism, and the rotary weighing mechanism being located below the tray.

[0004] Furthermore, the rotary weighing mechanism includes a stepper motor, drive teeth, a turntable, and a centrifuge tube tray. The stepper motor is fixedly mounted on the bottom of the tray with screws, the drive teeth are fixedly mounted on the output end of the stepper motor, the turntable is movably mounted above the tray, wherein the drive teeth mesh with the inner ring of the turntable, and the centrifuge tube tray is disposed on the turntable.

[0005] Furthermore, the rotary weighing mechanism also includes a centrifuge tube holder and a centrifuge tube. The surface of the centrifuge tube holder is provided with several circular holes at equal intervals. The centrifuge tube holder is inserted into the circular holes, and the centrifuge tube is inserted into the interior of the centrifuge tube holder. A marking plate is provided on the surface of the centrifuge tube holder.

[0006] Furthermore, a weighing bracket is movably arranged inside the fixed injector, and a weighing sleeve is provided on the top of the weighing bracket. The fixed injector is arranged in a "[" shape, and the weighing sleeve and weighing bracket are located below the centrifuge tube tray. The feeding part on the fixed injector is located above the centrifuge tube.

[0007] Furthermore, the lifting drive mechanism includes a spring mounting sleeve, a lifting motor, a threaded sleeve, a threaded screw, and a spring plate. One end of the spring mounting sleeve is fixedly connected to the spring plate, and the other end passes through the chassis and the lifting motor and is fixedly connected to the bottom surface of the partition platform. The threaded screw is fixedly installed at the output end of the lifting motor. The threaded sleeve is fixedly installed through and at the center of the chassis. The spring plate is sleeved on the outside of the threaded screw. Bolt holes are provided near the side of the chassis.

[0008] Beneficial effects

[0009] This utility model has the following beneficial effects: 1. This solid chemical material feeding and dispensing device uses a stepper motor to drive a turntable for precise rotation. The equally spaced circular holes in the centrifuge tube tray allow for the simultaneous loading of multiple centrifuge tubes. Compared to traditional single-channel devices that require weighing each sample individually, this device can simultaneously complete the injection and weighing of multiple samples, significantly reducing the operation cycle. It is particularly suitable for batch sample analysis scenarios, significantly improving experimental or production efficiency.

[0010] 2. This solid chemical material feeding and dispensing equipment uses a stepper motor for precise drive combined with the meshing transmission between the turntable and the centrifuge tube tray to achieve centrifuge tube positioning and replacement. This ensures that each sample accurately corresponds to the feeding section of the fixed sampler, avoiding weighing errors caused by sample misalignment. Both the centrifuge tube tray and the centrifuge tubes are installed using a plug-in method, making loading and unloading convenient and quick. Sample replacement or equipment maintenance can be completed without complicated tools, reducing the difficulty of operation for operators.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the structure of a rotary multi-channel solid chemical material weighing device according to the present invention; Figure 2 This is a schematic diagram of the partition platform and some of its structures in this utility model. Figure 1 ; Figure 3 This is an exploded view of the tray structure and some of its components in this utility model; Figure 4 This is a schematic diagram of the tray structure and partial assembly in this utility model; Figure 5 This is a schematic diagram of the partition platform and some of its structures. Figure 2 ; Figure 6 Schematic diagram of the partition platform and some of its structures Figure 3 ; Figure 7 This is a schematic diagram of a fixed sample injector and some of its structural components.

[0013] 1. Divider; 2. Mounting hole; 3. Telescopic support rod; 4. Tray; 5. Turntable; 6. Centrifuge tube tray; 7. Bracket; 8. Fixed injector; 9. Base plate; 10. Threaded screw; 11. Spring column plate; 12. Centrifuge tube holder; 13. Centrifuge tube; 14. Drive gear; 15. Stepper motor; 16. Lifting motor; 17. Photoelectric module; 18. Weighing bracket; 19. Weighing sleeve; 20. Mounting base plate; 21. Spring mounting rod; 22. Threaded sleeve. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] It should be understood in the description of this utility model that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] Please see Figure 1-7This utility model provides a technical solution: a rotary multi-channel solid chemical material weighing device, wherein a telescopic support rod 3 is provided through the surface of the partition platform 1, and an installation hole 2 is provided on the partition platform 1. A tray 4 is fixedly installed at the movable end of the telescopic support rod 3, and a base plate 9 is fixedly installed at the fixed end of the telescopic support rod 3. The tray 4 is arranged parallel to the partition platform 1, and a rotary weighing mechanism is provided on the tray 4. A bracket 7 is fixedly installed on the top of the partition platform 1, and the bracket 7 is arranged through the inner ring of the tray 4. A mounting base plate 20 is provided on the top surface of the partition platform 1 and inside the bracket 7. A fixed sample injector 8 is fixedly installed on the mounting base plate 20 by bolts. A lifting drive mechanism is provided at the bottom of the partition platform 1 through a spring mounting sleeve 21. The spring mounting sleeve 21 is arranged through the base plate 9, and the top end of the spring mounting sleeve 21 is fixedly installed to the bottom of the partition platform 1. A spring column plate 11 is fixedly installed at the other end. The spring mounting sleeve 21 is arranged through the lifting drive mechanism. The rotary weighing mechanism is located below the tray 4.

[0017] Specifically, the rotary weighing mechanism includes a stepper motor 15, a drive gear 14, a turntable 5, and a centrifuge tube tray 6. The stepper motor 15 is fixedly installed on the bottom of the tray 4 by screws, the drive gear 14 is fixedly installed on the output end of the stepper motor 15, the stepper motor 15 passes through the mounting hole 2, the turntable 5 is movably installed above the tray 4, wherein the drive gear 14 meshes with the inner ring of the turntable 5, and the centrifuge tube tray 6 is set on the turntable 5. The rotary weighing mechanism also includes a centrifuge tube holder 12 and a centrifuge tube 13. Several circular holes are equally spaced on the surface of the centrifuge tube tray 6. The centrifuge tube holder 12 is inserted into the circular holes, and the centrifuge tube 13 is inserted into the centrifuge tube holder 12. A marking plate is provided on the surface of the centrifuge tube tray 6. The surface of the centrifuge tube tray 6 can be opened with twenty sets of round holes, and the marking plate can be replaced according to the test requirements; A weighing bracket 18 is movably installed inside the fixed sample injector 8. A weighing sleeve 19 is installed on the top of the weighing bracket 18. The fixed sample injector 8 is arranged in a "[" shape. The weighing sleeve 19 and the weighing bracket 18 are located below the centrifuge tube tray 6. The feeding part on the fixed sample injector 8 is located above the centrifuge tube 13. The fixed sampler 8 is set in a "[" shape to ensure that the feeding and weighing inside the centrifuge tube 13 are on the same vertical plane, thus ensuring the consistency of feeding and weighing.

[0018] In this embodiment, a rotary weighing mechanism is set up to weigh the raw materials added to the centrifuge tube 13 by the fixed sampler 8. The weighing is implemented in detail below. The sample head containing the raw materials is placed on the fixed sampler 8 by hand or by a robot. The fixed sampler 8 is driven by a command to put the raw materials in the sample head into the centrifuge tube 13 directly below.

[0019] It should be noted that during raw material feeding, tray 4, driven by the lifting drive mechanism, lifts turntable 5, centrifuge tube tray 6, centrifuge tube holder 12, and centrifuge tube 13, causing the bottom of centrifuge tube holder 12 to separate from weighing bracket 18 and weighing sleeve 19. The specific operation of the lifting drive mechanism is described later. After feeding is completed, the lifting drive mechanism, driven by the action command, lowers centrifuge tube holder 12 and centrifuge tube 13 downwards, causing them to fall onto weighing sleeve 19 and pass through weighing bracket 18. The added raw materials are weighed, and the weighing data is transmitted to an external data control console for display via a fixed sampler 8. A photoelectric module 17 is located at the bottom of the tray 4 and in front of the fixed sampler 8. The photoelectric module 17 is used to monitor whether centrifuge tubes 13 are placed on the weighing sleeve 19. The photoelectric module 17 transmits the detected signal to the PLC module for the execution of action instructions so that subsequent actions can be performed. Optionally, other bottles such as vials or high-temperature pressure resistant bottles can also be placed on the tray 4. The fixed sampler 8 is existing technology. Without specifically disclosing its structure and principle, it can be used in conjunction with this equipment to weigh the raw materials in the centrifuge tubes 13. The fixed sampler 8 in this equipment is a "high-precision solid sampler integrated with an analytical balance weighing device". The weighing data can be read directly. After the centrifuge tubes 13 that have been filled with raw materials are weighed, the lifting drive mechanism lifts the centrifuge tube holder 12 and centrifuge tubes 13 again to separate them from the weighing sleeve 19. Then, the stepper motor 15 is driven by the command. The output end of the stepper motor 15 drives the drive gear 14 to rotate. Since the drive gear 14 meshes with the inner ring of the turntable 5, the turntable 5 rotates at a certain angle to move the weighed centrifuge tubes 13 and centrifuge tube holder 12 away from the weighing sleeve 19. The next set of centrifuge tube holders 12 and centrifuge tubes 13 rotate to the top of the weighing sleeve 19, and then the above weighing steps are repeated. This can realize the feeding and weighing of multiple sets of centrifuge tubes 13. It should be noted that the number of rotations of the stepper motor 15 can be set according to the spacing of the centrifuge tubes 13. The rotation angle of the turntable 5 driven by the stepper motor 15 is controlled by the PLC module and the input drive command. The inner side of the turntable 5 can be limited by the support wheels set on the top of the tray 4 to ensure the stability of the entire turntable 5.

[0020] Specifically, the lifting drive mechanism includes a spring mounting sleeve 21, a lifting motor 16, a threaded sleeve 22, a threaded screw 10, and a spring plate 11. One end of the spring mounting sleeve 21 is fixedly connected to the spring plate 11, and the other end passes through the chassis 9 and the lifting motor 16 and is fixedly connected to the bottom surface of the partition platform 1. The threaded screw 10 is fixedly installed at the output end of the lifting motor 16. The threaded sleeve 22 is fixedly installed through and at the center of the chassis 9. The spring plate 11 is sleeved on the outside of the threaded screw 10. The chassis 9 has bolt holes near the side, which can be fixedly connected to the housing by long screws.

[0021] In this embodiment, the lifting drive mechanism is used to lift and raise the tray 4, the centrifuge tube tray 6, and the centrifuge tube holder 12 and centrifuge tube 13 placed on the centrifuge tube tray 6. The specific working process of the lifting drive mechanism is as follows. First, the lifting motor 16 receives a signal and executes its action. The lifting motor 16 drives the threaded screw 10 to rotate, which can be clockwise or counterclockwise. Clockwise rotation is an upward movement, and counterclockwise rotation is a downward movement. When rotating clockwise, due to the action of the threaded sleeve 22 set in the middle of the chassis 9, the chassis 9 moves upward along the spring mounting sleeve 21. At the same time, the telescopic support rod 3 and the tray 4 move upward as a whole, thereby lifting the centrifuge tube support 12 and the centrifuge tube 13 together. When it is necessary to weigh the centrifuge tube 13 that has been filled with raw materials, the lifting motor 16 is given a counterclockwise action command. The chassis 9 moves downward along the spring mounting sleeve 21, and the telescopic support rod 3 and the tray 4 move downward as a whole. When the centrifuge tube holder 12 on the centrifuge tube tray 6 is inserted into the weighing sleeve 19, the centrifuge tube holder 12 is pushed out from the round hole on the surface of the centrifuge tube tray 6, so that the centrifuge tube holder 12 and centrifuge tube 13 are completely inserted into the weighing sleeve 19, and the centrifuge tube holder 12 and centrifuge tube 13 are weighed. The weight of the centrifuge tube holder 12 and centrifuge tube 13 weighed by the fixed sample injector 8 has been zeroed. The actual weighed weight is the weight of the raw material added by the sample head 9. After weighing, the centrifuge tube holder 12 and centrifuge tube 13 are separated from the weighing sleeve 19 by the rising action again. The centrifuge tube tray 6 is rotated with the stepper motor 15 and the turntable 5, waiting for the next set of centrifuge tubes 13 to be added and weighed.

[0022] The drive sources (deflection motor, stepper motor, and lifting motor) in the rotary weighing mechanism and lifting drive mechanism are all driven by drivers and communicate with a PLC. The PLC sends commands to the drivers, and the drivers control the motor operation. The aforementioned drivers and PLCs can be products under Huichuan Group, and all of the above are existing technologies. They can be used in conjunction with this device without specifically disclosing the structure and principle.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rotary multi-channel solid chemical material weighing device, comprising a partition platform (1), characterized in that: A telescopic support rod (3) is provided through the surface of the partition platform (1). A tray (4) is fixedly installed at the movable end of the telescopic support rod (3), and a base plate (9) is fixedly installed at the fixed end of the telescopic support rod (3). The tray (4) is arranged parallel to the partition platform (1). A rotating weighing mechanism is provided on the tray (4). A mounting base plate (20) is provided on the top surface of the partition platform (1) and inside the bracket (7). A fixed sample injector (8) is fixedly installed on the mounting base plate (20) by bolts. A lifting drive mechanism is provided at the bottom of the partition platform (1) through a spring mounting sleeve rod (21). The spring mounting sleeve rod (21) is provided through the base plate (9). The top end of the spring mounting sleeve rod (21) is fixedly installed with the bottom of the partition platform (1), and a spring column plate (11) is fixedly installed at the other end. The spring mounting sleeve rod (21) is provided through the lifting drive mechanism. The rotating weighing mechanism is located below the tray (4).

2. The rotary multi-channel solid chemical material weighing device according to claim 1, characterized in that: The rotary weighing mechanism includes a stepper motor (15), a drive gear (14), a turntable (5), and a centrifuge tube tray (6). The stepper motor (15) is fixedly installed on the bottom of the tray (4) by screws. The drive gear (14) is fixedly installed on the output end of the stepper motor (15). The turntable (5) is movably installed above the tray (4). The drive gear (14) meshes with the inner ring of the turntable (5). The centrifuge tube tray (6) is set on the turntable (5).

3. The rotary multi-channel solid chemical material weighing device according to claim 2, characterized in that: The rotary weighing mechanism also includes a centrifuge tube holder (12) and a centrifuge tube (13). The surface of the centrifuge tube holder (6) is provided with several circular holes at equal intervals. The centrifuge tube holder (12) is inserted into the circular holes, and the centrifuge tube (13) is inserted into the inside of the centrifuge tube holder (12). The surface of the centrifuge tube holder (6) is provided with a marking plate.

4. The rotary multi-channel solid chemical material weighing device according to claim 1, characterized in that: The fixed sample injector (8) is equipped with a weighing bracket (18) inside. A weighing sleeve (19) is provided on the top of the weighing bracket (18). The fixed sample injector (8) is arranged in a "[" shape. The weighing sleeve (19) and the weighing bracket (18) are located below the centrifuge tube tray (6). The feeding part on the fixed sample injector (8) is located above the centrifuge tube (13).

5. A rotary multi-channel solid chemical material weighing device according to claim 1, characterized in that: The lifting drive mechanism includes a spring mounting sleeve (21), a lifting motor (16), a threaded sleeve (22), a threaded screw (10), and a spring plate (11). One end of the spring mounting sleeve (21) is fixedly connected to the spring plate (11), and the other end passes through the chassis (9) and the lifting motor (16) and is fixedly connected to the bottom surface of the partition platform (1). The threaded screw (10) is fixedly installed at the output end of the lifting motor (16). The threaded sleeve (22) is fixedly installed through the center of the chassis (9). The spring plate (11) is sleeved on the outside of the threaded screw (10). Bolt holes are provided near the side of the chassis (9).

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