Medicine weighing machine

Abstract

The utility model relates to a medicinal material weighing machine, including frame, screen assembly, collection box, eccentric wheel subassembly and weighing assembly, screen assembly rotatable place on the frame, collection box fixed place on the frame, and the feed inlet of collection box is below the discharge port of screen assembly, and collection box collects the medicinal material after screening of screen assembly, eccentric wheel subassembly place on the frame, and the output end of eccentric wheel subassembly stretches into the discharge port of collection box lower end, and eccentric wheel subassembly opens or closes the discharge port of collection box, weighing assembly place below collection box, and weighing assembly weighs the medicinal material of collection box export, eccentric wheel subassembly still is connected with weighing assembly, and eccentric wheel subassembly drives weighing assembly to export the medicinal material after weighing, relative to prior art, the utility model handles different form, particle size medicinal material in advance, avoids big medicinal material card stagnation, small medicinal material spill, reduces subsequent weighing error, and guarantees the production quality of product.

Description

Technical Field

[0001] This utility model relates to the field of medicinal material production equipment technology, and more specifically, to a medicinal material weighing machine. Background Technology

[0002] Herbal weighing machines are devices used for the precise weighing of Chinese medicinal herbs. The core issues are accuracy and stability, adaptability, and ease of operation. Herbal weighing machines are mainly used in pharmacies, Chinese medicine factories, and Chinese medicine hospitals to achieve rapid weighing and portioning of Chinese medicinal herbs (including processed slices, granules, powders, etc.). The core requirements are high accuracy, adaptability to the form of medicinal herbs, and convenient operation.

[0003] Existing medicinal material weighing machines still have some shortcomings in production applications. In particular, during the production of processed Chinese medicinal materials, the materials are prone to chipping or breaking, which can lead to inconsistent weighing data and affect the quality of the product. Utility Model Content

[0004] This invention aims to at least partially solve one of the aforementioned technical problems in the prior art. Therefore, one objective of this invention is to provide a medicinal material weighing machine that pre-treats medicinal materials of different shapes and particle sizes, reduces subsequent weighing errors, and ensures product quality.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A medicinal material weighing machine, comprising: frame; A screen assembly, which is rotatably mounted on the frame; A collection box is fixedly placed on the frame, with the inlet of the collection box located below the outlet of the screen assembly. The collection box collects the medicinal materials screened by the screen assembly. An eccentric wheel assembly is placed on the frame, and the output end of the eccentric wheel assembly extends into the discharge port at the lower end of the collection box. The eccentric wheel assembly opens or closes the discharge port of the collection box. A weighing component is placed below the collection box and weighs the medicinal materials discharged from the collection box; an eccentric wheel component is also connected to the weighing component and drives the weighing component to discharge the weighed medicinal materials.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the screen assembly includes: The first motor is fixed to the support plate at one end of the frame, and the output end of the first motor is connected to the screen assembly through a coupling, thereby driving the screen assembly to rotate. The screen body is rotatably mounted on the frame. The output end of the first motor is connected to the screen body via a coupling and drives the screen assembly to rotate. Multiple baffles are fixedly arranged at equal intervals along the inner wall of the screen body.

[0008] Furthermore, the eccentric wheel assembly includes: The second motor is fixedly mounted on the frame; An eccentric wheel is located at one end of the second motor, and the output end of the second motor is connected to the eccentric wheel. The output end of the second motor drives the eccentric wheel to rotate. A push rod is placed at the upper end of the eccentric wheel, and the eccentric wheel is rotatably connected to the push rod; a limit collar is provided on the push rod, and the limit collar is fixedly connected to the frame; during the rotation of the eccentric wheel, the push rod is driven to move vertically back and forth. A blocking block is placed at the discharge port of the collection box. The blocking block is fixedly connected to the top of the push rod. During the vertical reciprocating movement of the push rod, the blocking block is driven to open or close the discharge port of the collection box.

[0009] Furthermore, the upper surface of the block is inclined toward the weighing assembly.

[0010] Furthermore, the weighing component includes: A first support rod is placed inside the frame, and one end of the first support rod is fixedly connected to the frame. A tray is placed inside the frame and below the collection box; one end of the tray is rotatably connected to the first support rod, and a second support rod is provided at the lower end of the tray, the second support rod being fixedly connected to the middle of the top rod; during the vertical reciprocating movement of the top rod, the second support rod drives the tray to rotate around the first support rod to an inclined state, and also drives the tray to return to its original position; A sensor, which is fixedly placed on the upper end of the tray, is electrically connected to an external display device; A weighing pan is fixedly placed on top of the sensor, and the sensor weighs the medicinal materials in the weighing pan.

[0011] Furthermore, a fastener is fixedly installed on the side wall of the collection box, and the collection box is fixedly connected to the frame through the fastener.

[0012] The beneficial effects of this utility model are: it integrates screening, temporary storage, weighing, and export into a single process, eliminating the need for manual step-by-step transfer of medicinal materials, reducing operational steps, and is especially suitable for batch weighing scenarios; the screen assembly can pre-process medicinal materials of different shapes and particle sizes, avoiding large pieces of medicinal materials from getting stuck and small pieces from spilling, reducing subsequent weighing errors and ensuring product quality; the eccentric wheel assembly achieves dual-function linkage, reducing individual drive components, making the overall structure of the equipment compact, occupying little space, and simplifying the operation steps; the entire process from screening to export is mechanically linked, avoiding problems such as reading deviations and transfer losses during manual weighing, improving weighing consistency; it eliminates the need for manual screening of impurities, manual control of the output amount, and transfer of weighed medicinal materials, reducing repetitive labor for operators and improving work comfort. Attached Figure Description

[0013] Figure 1 This is a front view of a medicinal material weighing machine according to the present invention; Figure 2 This is another front view of a medicinal material weighing machine according to the present invention; Figure 3 This is a side view of a medicinal material weighing machine according to the present invention; Figure 4 This is a schematic diagram of the structure of a medicinal material weighing machine according to the present invention.

[0014] The attached diagram lists the components represented by each number as follows: 1. Rack; 2. Screen assembly, 201. First motor, 202. Screen body, 203. Baffle plate, 204. Coupling; 3. Collection box; 4. Eccentric wheel assembly; 401. Second motor; 402. Eccentric wheel; 403. Push rod; 404. Limiting collar; 405. Block; 5. Weighing components, 501. First support rod, 502. Tray, 503. Second support rod, 504. Sensor, 505. Weighing pan; 6. Support plate; 7. Fasteners. Detailed Implementation

[0015] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0016] like Figures 1 to 4 As shown, a medicinal material weighing machine includes: Rack 1; Screen assembly 2, which is rotatably mounted on the frame 1; Collection box 3 is fixedly placed on the frame 1. The inlet of the collection box 3 is located below the outlet of the screen assembly 2. The collection box 3 collects the medicinal materials screened by the screen assembly 2. Eccentric wheel assembly 4, the eccentric wheel assembly 4 is placed on the frame 1, the output end of the eccentric wheel assembly 4 extends into the discharge port at the lower end of the collection box 3, the eccentric wheel assembly 4 opens or closes the discharge port of the collection box 3; Weighing component 5 is placed below the collection box 3 and weighs the medicinal materials discharged from the collection box 3; the eccentric wheel component 4 is also connected to the weighing component 5 and drives the weighing component 5 to discharge the weighed medicinal materials.

[0017] In practical application, the medicinal materials to be weighed are put into the rotatable screen assembly 2. During the rotation of the screen assembly 2, impurities in the medicinal materials are separated or classified according to particle size. The qualified medicinal materials after screening fall from the discharge port. The screened medicinal materials fall into the collection box 3 below for temporary storage. At this time, the eccentric wheel assembly 4 is in the closed state, blocking the discharge port at the lower end of the collection box 3 to prevent the medicinal materials from falling prematurely. After starting, the eccentric wheel assembly 4 opens the discharge port, and the medicinal materials in the collection box 3 fall quantitatively into the weighing assembly 5 below. After the weighing assembly 5 completes the weight detection and reaches the preset value, the eccentric wheel assembly 4 moves again, closing the discharge port of the collection box 3 on the one hand, and driving the weighing assembly 5 to rotate on the other hand, exporting the weighed medicinal materials to the designated position. Then, all components reset and enter the next cycle.

[0018] This embodiment integrates screening, temporary storage, weighing, and export into a single process, eliminating the need for manual step-by-step transfer of medicinal materials and reducing operational steps, making it particularly suitable for batch weighing scenarios. The screen assembly 2 can pre-process medicinal materials of different shapes and particle sizes, preventing large pieces of medicinal materials from getting stuck and small pieces from spilling, reducing subsequent weighing errors and ensuring product quality. The eccentric wheel assembly 4 achieves dual-function linkage, reducing individual drive components, resulting in a compact overall structure, small footprint, and simpler operation steps. The entire process from screening to export is mechanically linked, avoiding reading deviations and transfer losses that occur during manual weighing, thus improving weighing consistency. There is no need for manual screening of impurities, manual control of the output amount, or transfer of weighed medicinal materials, reducing repetitive labor for operators and improving work comfort.

[0019] In the above embodiments, the screen assembly 2 includes: The first motor 201 is fixed to the support plate 6 at one end of the frame 1. The output end of the first motor 201 is connected to the screen assembly 2 through the coupling 204 and drives the screen assembly 2 to rotate. The screen body 202 is rotatably placed on the frame 1. The output end of the first motor 201 is connected to the screen body 202 through a coupling 204 and drives the screen assembly 2 to rotate. Multiple baffles 203 are fixedly arranged at equal intervals along the inner wall of the screen body 202.

[0020] In practical application, the first motor 201 is fixed to the support plate 6 at one end of the frame 1. The output end of the first motor 201 is directly connected to the screen body 202 through the coupling 204. After the motor starts, it drives the screen body 202 to rotate stably on the frame 1. When the screen body 202 rotates, the baffles 203 arranged at equal intervals on the inner wall of the screen body 202 move synchronously. On the one hand, they drive the medicinal materials to roll and stir-fry inside the screen body 202, so that the medicinal materials can fully contact the inner wall of the screen body 202 and achieve efficient separation of impurities or different particle sizes. On the other hand, the baffles 203 can push the medicinal materials to the discharge port of the screen body 202 to avoid the medicinal materials from accumulating and stagnating inside the screen. The qualified medicinal materials after screening fall through the discharge port of the screen body 202 and fall accurately into the inlet of the collection box 3 below, completing the connection between screening and temporary storage.

[0021] In this embodiment, the first motor 201 is directly driven by the coupling 204, resulting in more stable power transmission. Combined with the stirring and pushing action of the baffles 203, it prevents the accumulation of medicinal materials, making the screening speed faster than relying solely on gravity screening, especially suitable for batch processing. The baffles 203 are evenly spaced, allowing the medicinal materials to be evenly distributed and fully tumbled within the screen body 202, reducing the problem of incomplete screening caused by the accumulation of medicinal materials and improving the purity of the medicinal materials. The connection of the coupling 204 reduces power loss, and the vibration of the screen body 202 is smaller when it rotates, which protects the equipment components and prevents vibration from affecting the subsequent weighing accuracy. The pushing action of the baffles 203 can adapt to medicinal materials with slightly higher viscosity or poorer flowability, reducing their adhesion and retention on the inner wall of the screen body 202 and reducing the difficulty of cleaning.

[0022] In the above embodiments, the eccentric wheel assembly 4 includes: The second motor 401 is fixedly mounted on the frame 1; An eccentric wheel 402 is placed at one end of the second motor 401. The output end of the second motor 401 is connected to the eccentric wheel 402, and the output end of the second motor 401 drives the eccentric wheel 402 to rotate. A push rod 403 is placed on the upper end of the eccentric wheel 402, and the eccentric wheel 402 is rotatably connected to the push rod 403; a limiting collar 404 is provided on the push rod 403, and the limiting collar 404 is fixedly connected to the frame 1; during the rotation of the eccentric wheel 402, the push rod 403 is driven to move vertically back and forth. A blocking block 405 is placed at the discharge port of the collection box 3. The blocking block 405 is fixedly connected to the top of the push rod 403. During the vertical reciprocating movement of the push rod 403, it drives the blocking block 405 to open or close the discharge port of the collection box 3.

[0023] In practical applications, the second motor 401 is fixed on the frame 1. After starting, its output directly drives the eccentric wheel 402 to rotate, providing direct and stable power transmission. The eccentric wheel 402 is rotatably connected to the lower end of the push rod 403. The limiting collar 404 is fixed on the frame and restricts the push rod 403 to move only vertically. When the eccentric wheel 402 rotates, its eccentric structure pushes the push rod 403 to reciprocate in the vertical direction. The distal end of the eccentric wheel 402 pushes the push rod 403 upward, and when the proximal end falls back, the push rod 403 descends with gravity or a restoring force. The top of the push rod 403 is fixedly connected to the block 405 at the outlet of the collection box 3. When the push rod 403 rises, it drives the block 405 to move upward, opening the outlet of the collection box 3. When the push rod 403 falls, the block 405 falls back, tightly sealing the outlet and achieving precise start and stop of the medicinal material discharge.

[0024] In this embodiment, the second motor 401 directly drives the eccentric wheel 402, which, together with the limiting collar 404, guides the top rod 403. The lifting stroke of the block 405 is precisely controllable, avoiding unstable flow of medicinal materials caused by the outlet opening being too large or too small, especially suitable for precise weighing of small ranges. The limiting collar 404 restricts the radial sway of the top rod 403, and the rotational connection between the eccentric wheel 402 and the top rod 403 reduces frictional loss. The overall structure has low vibration, which not only extends the life of the components but also avoids vibration interference with the reading accuracy of the weighing assembly 5. The block 405 rises and falls vertically with the top rod 403, and has a higher fit with the outlet of the collection box 3. When closed, it can effectively prevent the medicinal materials from leaking out, reduce material loss before weighing, and improve weighing accuracy. The eccentric wheel assembly 4 only includes core components such as the second motor 401, the eccentric wheel 402, and the top rod 403. It has no complex transmission structure, is easy to install and disassemble, and has lower costs for subsequent cleaning, lubrication, or replacement of components.

[0025] In the above embodiment, the upper end face of the block 405 is inclined toward the weighing component 5.

[0026] In practical applications, the upper surface of the block 405 is tilted towards the weighing component 5. When the block 405 rises to open the discharge port, the medicinal materials in the collection box 3 slide down along the inclined surface and are precisely guided to the feeding area of ​​the weighing component 5. When closed, the inclined surface fits and seals with the edge of the discharge port, and the inclined structure reduces the residue of medicinal materials on the surface of the block.

[0027] In this embodiment, the inclined surface uses gravity to guide the flow of medicinal materials, preventing them from accumulating on top of the block 405. This is especially suitable for powdery or slightly viscous medicinal materials, reducing discharge jams and improving the efficiency of single weighing. The medicinal materials slide directionally along the inclined surface, preventing spillage onto the weighing component 5 and causing losses. It also reduces weight detection delays caused by the accumulation of medicinal materials, making the weighing reading more accurate. In the closed state, the inclined surface and the discharge port form a line-surface fit, resulting in a better sealing effect and preventing the medicinal materials from leaking out. The inclined structure has no dead corners, and medicinal material residues easily fall off along the slope during cleaning, reducing the difficulty of cleaning.

[0028] In the above embodiments, the weighing component 5 includes: A first support rod 501 is placed inside the frame 1, and one end of the first support rod 501 is fixedly connected to the frame 1. A tray 502 is placed inside the frame 1 and below the collection box 3. One end of the tray 502 is rotatably connected to the first support rod 501, and a second support rod 503 is provided at the lower end of the tray 502. The second support rod 503 is fixedly connected to the middle of the top rod 403. During the vertical reciprocating movement of the top rod 403, the second support rod 503 drives the tray 502 to rotate around the first support rod 501 to an inclined state, and also drives the tray 502 to return to its original position. Sensor 504 is fixedly placed on the upper end of the tray 502 and is electrically connected to an external display device; Weighing pan 505 is fixedly placed on the upper end of sensor 504, and sensor 504 weighs the medicinal materials in weighing pan 505.

[0029] In practical application, one end of the first support rod 501 is fixed inside the frame 1, providing a stable rotation fulcrum for the tray 502 and ensuring the positioning accuracy of the tray 502 during movement. The tray 502 is initially in a horizontal state, and the sensor 504 above it is level with the weighing pan 505, receiving the medicinal materials falling from the discharge port of the collection box 3. The sensor 504 detects the weight of the medicinal materials in the weighing pan 505 in real time and transmits the data to an external display device. When the top rod 403 moves vertically back and forth, it drives the tray 502 through the second support rod 503 fixed in the middle. When the top rod 403 rises, the second support rod 503 pulls the middle of the tray 502 upwards, causing the tray 502 to rotate around the first support rod 501 to an inclined state. The weighed medicinal materials in the weighing pan 505 automatically slide down and are discharged. When the top rod 403 falls, the second support rod 503 pushes the tray back to a horizontal state, preparing for the next weighing. After the discharge is completed, the tray 502 is reset, and the sensor 504 and the weighing pan 505 return to a horizontal state, waiting for the next batch of medicinal materials to fall in, realizing the cyclic linkage of weighing, discharge and reset.

[0030] This embodiment relies on the fixed connection between the top rod 403 and the second support rod 503, eliminating the need for a separate drive component. It shares power with the eccentric wheel assembly 4, resulting in a more compact structure and reduced equipment size and failure rate. The tray 502 can rotate to an inclined state, and with the help of gravity, it can completely remove the medicinal materials from the weighing pan 505, avoiding residues that could affect subsequent weighing accuracy. The first support rod 501 provides stable support, and when the tray 502 is in a horizontal state, the sensor 504 experiences uniform force, reducing errors caused by vibration or displacement. The linkage process has minimal mechanical interference, ensuring accurate weight detection data.

[0031] In the above embodiment, a fixing member 7 is fixedly provided on the side wall of the collection box 3, and the collection box 3 is fixedly connected to the frame 1 through the fixing member 7.

[0032] In this embodiment, the fixing component 7 is directly fixed to the side wall of the collection box 3. When connected to the frame 1, the positioning reference is clear, and the positional accuracy of the inlet and outlet of the collection box 3 can be ensured without repeated adjustments, thereby improving the equipment assembly efficiency. The collection box 3 is rigidly connected to the frame 1 to avoid displacement or vibration during equipment operation, which not only prevents the loss of medicinal materials by spillage, but also reduces the interference of vibration on the weighing accuracy of the sensor 504.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medicinal material weighing machine, characterized in that, include: frame; A screen assembly, which is rotatably mounted on the frame; A collection box is fixedly placed on the frame, with the inlet of the collection box located below the outlet of the screen assembly. The collection box collects the medicinal materials screened by the screen assembly. An eccentric wheel assembly is placed on the frame, and the output end of the eccentric wheel assembly extends into the discharge port at the lower end of the collection box. The eccentric wheel assembly opens or closes the discharge port of the collection box. A weighing component is placed below the collection box and weighs the medicinal materials discharged from the collection box; an eccentric wheel component is also connected to the weighing component and drives the weighing component to discharge the weighed medicinal materials.

2. The medicinal material weighing machine according to claim 1, characterized in that, The screen assembly includes: The first motor is fixed to the support plate at one end of the frame, and the output end of the first motor is connected to the screen assembly through a coupling, thereby driving the screen assembly to rotate. The screen body is rotatably mounted on the frame. The output end of the first motor is connected to the screen body via a coupling and drives the screen assembly to rotate. Multiple baffles are fixedly arranged at equal intervals along the inner wall of the screen body.

3. The medicinal material weighing machine according to claim 1, characterized in that, The eccentric wheel assembly includes: The second motor is fixedly mounted on the frame; An eccentric wheel is located at one end of the second motor, and the output end of the second motor is connected to the eccentric wheel. The output end of the second motor drives the eccentric wheel to rotate. A push rod is placed at the upper end of the eccentric wheel, and the eccentric wheel is rotatably connected to the push rod; a limit collar is provided on the push rod, and the limit collar is fixedly connected to the frame; during the rotation of the eccentric wheel, the push rod is driven to move vertically back and forth. A blocking block is placed at the discharge port of the collection box. The blocking block is fixedly connected to the top of the push rod. During the vertical reciprocating movement of the push rod, the blocking block is driven to open or close the discharge port of the collection box.

4. The medicinal material weighing machine according to claim 3, characterized in that, The upper surface of the block is inclined toward the weighing component.

5. The medicinal material weighing machine according to claim 3, characterized in that, The weighing component includes: A first support rod is placed inside the frame, and one end of the first support rod is fixedly connected to the frame. A tray is placed inside the frame and below the collection box; one end of the tray is rotatably connected to the first support rod, and a second support rod is provided at the lower end of the tray, the second support rod being fixedly connected to the middle of the top rod; during the vertical reciprocating movement of the top rod, the second support rod drives the tray to rotate around the first support rod to an inclined state, and also drives the tray to return to its original position; A sensor, which is fixedly placed on the upper end of the tray, is electrically connected to an external display device; A weighing pan is fixedly placed on top of the sensor, and the sensor weighs the medicinal materials in the weighing pan.

6. The medicinal material weighing machine according to claim 1, characterized in that, A fixing component is fixedly installed on the side wall of the collection box, and the collection box is fixedly connected to the frame through the fixing component.

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