Clean weighing device for chemical medicine production
By introducing a cleaning roller and a dust collection system into the weighing device, the problem of residue after weighing medicines has been solved, the weighing accuracy and cleaning efficiency have been improved, and the stability of medicine quality has been ensured.
Patent Information
- Application Number
- CN202520498407.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-20
AI Technical Summary
In existing technologies, after weighing medicines, residue often remains on the weighing plate, which affects the accuracy of weighing and is inconvenient to clean, thus affecting the quality of the medicines and the accuracy of subsequent weighing.
A clean weighing device for chemical pharmaceutical production was designed. The device uses a motor-driven cleaning roller that moves and rotates laterally. Combined with a dust collection system and filter plate filtration, it automatically cleans up pharmaceutical residues, prevents residue adhesion, and ensures the cleanliness of the weighing plate.
It enables automatic cleaning of drug residues, improves weighing accuracy, simplifies the cleaning process, and ensures the continuous and efficient use of the weighing device.
Smart Images
Figure CN223870181U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pharmaceutical weighing, specifically a clean weighing device for chemical drug production. Background Technology
[0002] During drug synthesis and preparation, personnel need to weigh the drug components to ensure the correct proportions. The weighing and proportioning of the synthesized drugs needs to be calculated and implemented based on the formula and drug characteristics. Generally, precision weighing instruments, such as electronic balances, are required when weighing drugs. During weighing, the required mass of the drug needs to be calculated according to the formula and retrieved from standard inventory. When using electronic balances or precision weighing instruments, the instruments need to be calibrated to ensure their accuracy and stability. After carefully checking and confirming the quality and purity of the required drugs to ensure they meet the requirements, the drugs are weighed proportionally on a precision electronic balance according to the formula and the required mass until the total mass of the required drugs reaches the required level. It is important to note that the weighing and proportioning of drugs during synthesis and preparation requires careful and rigorous operation, following compliant procedures and standards to ensure the quality, safety, and efficacy of the drugs.
[0003] A search revealed a Chinese patent disclosure for a weighing device used in pharmaceutical processing (authorization announcement number CN217358714U). This patented technology includes a base, with an mounting plate fixedly connected to the upper surface of the base via several support rods. A conveyor belt is installed on the upper left end of the base, and a weighing platform is fixedly connected to the upper right end of the base. In use, personnel only need to place the weighing cylinder onto the weighing platform. When the weighing sensor detects a weight signal, the controller will activate the discharge assembly, which inputs the raw material from the storage cylinder into the weighing cylinder. When the weight is reached by the weighing sensor, the controller will activate the cylinder, which will drive the transfer plate to the top of the weighing cylinder. Then, the transfer assembly will grasp the weighing cylinder, and the cylinder will drive the weighing cylinder upward. Then, the first motor will operate, driving the weighing cylinder towards the conveyor belt, which will transport the weighing cylinder to the next production process, thereby reducing the labor intensity of the workers.
[0004] However, the weighing of medicines needs to be very precise, as even an error of a few grams can affect the quality of the medicine. After weighing medicines using existing technology, some residue will inevitably remain on the weighing plate, which is not only troublesome to clean, but also affects the accuracy of subsequent weighing. Therefore, this utility model provides a clean weighing device for chemical drug production. Utility Model Content
[0005] To address the shortcomings of existing technologies and solve the problem of the need for highly accurate weighing of medicines, where even an error of a few grams can affect the quality of the medicine, and because existing technologies leave some residue on the weighing plate after weighing medicines, which is not only troublesome to clean but also affects the accuracy of subsequent weighings, this utility model proposes a clean weighing device for chemical drug production.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A clean weighing device for chemical pharmaceutical production, comprising a base, a weighing body on the top of the base, a material holding plate on the top of the weighing body, a first support frame fixedly connected to the top of the base, a first motor fixedly connected to the top of the first support frame, the output end of the first motor extending into the interior of the first support frame and fixedly connected to a first lead screw, a first slider connected to the outer wall of the first lead screw via a lead screw and nut pair, the first slider being slidably connected to the first support frame, a second support frame fixedly connected to one end of the first slider, a second motor fixedly connected to one side of the second support frame, the output end of the second motor extending into the interior of the second support frame and fixedly connected to a second lead screw, a second slider connected to the outer wall of the second lead screw via a lead screw and nut pair, the second slider being slidably connected to the second support frame, a fixed frame fixedly connected to the bottom of the second slider, a first rotating shaft rotatably connected to the inner wall of the fixed frame, a cleaning roller fixedly connected to the outer wall of the first rotating shaft, and a linkage assembly provided at the bottom of the second support frame.
[0007] Preferably, the linkage component includes a second rotating shaft, which is disposed on the inner wall of the fixed frame and rotatably connected to the fixed frame. A first bevel gear is fixedly connected to the bottom of the second rotating shaft, and a second bevel gear is fixedly connected to the outer wall of the first rotating shaft. The first bevel gear and the second bevel gear are meshed together. A spur gear is fixedly connected to the outer wall of the second rotating shaft, and a rack is fixedly connected to the bottom of the second support frame. The spur gear and the rack are meshed together.
[0008] Preferably, a housing is slidably connected to the top of the base, and a cover plate is provided on the top of the housing. An air pump is fixedly connected to the inner wall of the first support frame, and a pipe is connected to the output end of the air pump. One end of the pipe extends into the interior of the housing. A vacuum cleaner head is fixedly connected to one side of the fixed frame, and a flexible hose is connected to the outer wall of the vacuum cleaner head. One end of the flexible hose passes through the cover plate and extends into the interior of the housing.
[0009] Preferably, a filter plate is slidably connected to the inner wall of the casing, and a connecting frame is fixedly connected to the top of the filter plate, and the connecting frame is fixedly connected to the cover plate.
[0010] Preferably, a sliding shaft is fixedly connected to the inner wall of the base, a connecting block is slidably connected to the outer wall of the sliding shaft, the connecting block is fixedly connected to the sleeve, a spring is sleeved on the outer wall of the sliding shaft, and a drive assembly is provided inside the first support frame.
[0011] Preferably, the drive assembly includes a cam, which is fixedly mounted on the outer wall of the first lead screw, and the cam is used in conjunction with a sleeve.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The chemical pharmaceutical production clean weighing device of this utility model controls the lateral movement of the fixed frame through a second motor, so that the cleaning roller moves laterally. Through the set linkage component, the cleaning roller rotates while moving laterally. The rotating cleaning roller facilitates the cleaning of drug residues adhering to the material plate and prevents drug residues from continuously adhering to the material plate.
[0014] 2. The chemical pharmaceutical production clean weighing device of this utility model filters the pharmaceutical residue entering the casing through a filter plate, so that the pharmaceutical residue is left on the top of the filter plate. While the cleaning roller moves up and down, the filter plate is driven to shake back and forth left and right under the cooperation of the cam and the spring, thereby preventing the filter plate from being blocked by pharmaceutical residue and affecting the dust collection effect of the dust collection head. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a perspective view of the present invention;
[0017] Figure 2 This is a cross-sectional view of the present invention;
[0018] Figure 3 This is a diagram showing the use of a spur gear and rack in conjunction with this utility model;
[0019] Figure 4 This is a utility model Figure 2 Enlarged view of point A in the middle;
[0020] Figure 5 This is a utility model Figure 2 Enlarged view of point B in the middle;
[0021] In the diagram: 1. Base; 11. Weighing body; 12. Material holding plate; 13. First support frame; 14. First motor; 15. First lead screw; 16. First slider;
[0022] 2. Second support frame; 21. Second motor; 22. Second lead screw; 23. Second slider; 24. Fixing frame; 25. First rotating shaft; 26. Cleaning roller;
[0023] 3. Second shaft; 31. Spur gear; 32. Rack; 33. First bevel gear; 34. Second bevel gear;
[0024] 4. Air pump; 41. Pipeline; 42. Housing; 43. Filter plate; 44. Cover plate; 45. Connecting frame; 46. Hose; 47. Vacuum cleaner head;
[0025] 5. Sliding shaft; 51. Sliding block; 52. Spring; 53. Cam. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0027] like Figures 1 to 5 As shown, this utility model provides a technical solution: a clean weighing device for chemical pharmaceutical production, including a base 1, a weighing body 11 on the top of the base 1, a material holding plate 12 on the top of the weighing body 11, a first support frame 13 fixedly connected to the top of the base 1, a first motor 14 fixedly connected to the top of the first support frame 13, the output end of the first motor 14 extending into the interior of the first support frame 13 and fixedly connected to a first lead screw 15, a first slider 16 connected to the outer wall of the first lead screw 15 via a lead screw and nut pair, the first slider 16 being slidably connected to the first support frame 13, and the first slider... One end of 16 is fixedly connected to a second support frame 2. A second motor 21 is fixedly connected to one side of the second support frame 2. The output end of the second motor 21 extends into the interior of the second support frame 2 and is fixedly connected to a second lead screw 22. The outer wall of the second lead screw 22 is connected to a second slider 23 through a lead screw nut pair. The second slider 23 is slidably connected to the second support frame 2. A fixed frame 24 is fixedly connected to the bottom of the second slider 23. A first rotating shaft 25 is rotatably connected to the inner wall of the fixed frame 24. A cleaning roller 26 is fixedly connected to the outer wall of the first rotating shaft 25. A linkage component is provided at the bottom of the second support frame 2.
[0028] The above technical solution involves placing the medicine on the holding plate 12, weighing it using the weighing body 11, and removing the medicine after weighing. Then, the first motor 14 is started, driving the first lead screw 15 to rotate, causing the first slider 16 to move downwards, which in turn moves the second support frame 2 downwards, bringing the cleaning roller 26 close to the holding plate 12. The second motor 21 is then started, driving the second lead screw 22 to rotate, causing the second slider 23 to move laterally, which in turn moves the fixing frame 24 laterally, causing the cleaning roller 26 to move laterally. Through the linkage components, the cleaning roller 26 rotates while moving laterally, cleaning the medicine residue on the holding plate 12. After cleaning, the first motor 14 controls the cleaning roller 26 to move upwards again, so that the holding plate 12 can be used subsequently.
[0029] Specifically, the linkage component includes a second rotating shaft 3, which is disposed on the inner wall of the fixed frame 24 and rotatably connected to the fixed frame 24. A first bevel gear 33 is fixedly connected to the bottom of the second rotating shaft 3, and a second bevel gear 34 is fixedly connected to the outer wall of the first rotating shaft 25. The first bevel gear 33 and the second bevel gear 34 are meshed together. A spur gear 31 is fixedly connected to the outer wall of the second rotating shaft 3, and a rack 32 is fixedly connected to the bottom of the second support frame 2. The spur gear 31 and the rack 32 are meshed together.
[0030] Through the above technical solution, the fixed frame 24 moves laterally while driving the spur gear 31 to move laterally. The rack 32 drives the spur gear 31 to rotate while moving laterally, causing the second rotating shaft 3 to rotate while moving laterally, driving the first bevel gear 33 to rotate, causing the second bevel gear 34 to rotate, and driving the first rotating shaft 25 to rotate. This causes the cleaning roller 26 to rotate while moving laterally. The rotating cleaning roller 26 facilitates the cleaning of medicine residues adhering to the material holding plate 12, preventing medicine residues from continuously adhering to the material holding plate 12.
[0031] Specifically, a housing 42 is slidably connected to the top of the base 1, and a cover plate 44 is provided on the top of the housing 42. An air pump 4 is fixedly connected to the inner wall of the first support frame 13. A pipe 41 is connected to the output end of the air pump 4. One end of the pipe 41 extends into the interior of the housing 42. A vacuum cleaner head 47 is fixedly connected to one side of the fixed frame 24. A hose 46 is connected to the outer wall of the vacuum cleaner head 47. One end of the hose 46 passes through the cover plate 44 and extends into the interior of the housing 42.
[0032] With the above technical solution, the air pump 4 is started to draw air while the cleaning roller 26 is rotating, which can draw the medicine residue swept off by the cleaning roller 26 into the casing 42 along the suction head 47 and the hose 46.
[0033] Specifically, a filter plate 43 is slidably connected to the inner wall of the housing 42, and a connecting frame 45 is fixedly connected to the top of the filter plate 43. The connecting frame 45 is fixedly connected to the cover plate 44.
[0034] Through the above technical solution, the filter plate 43 filters the drug residue entering the housing 42, so that the drug residue remains on the top of the filter plate 43, and the excess air is discharged through the filter plate 43. After a certain amount of drug residue is collected, in order to prevent the filter plate 43 from being blocked by the drug residue, the cover plate 44 is lifted upward, which drives the connecting frame 45 to move upward, so that the filter plate 43 moves upward, making it easy to remove the filter plate 43 for cleaning.
[0035] Specifically, a sliding shaft 5 is fixedly connected to the inner wall of the base 1, a connecting block 51 is slidably connected to the outer wall of the sliding shaft 5, the connecting block 51 is fixedly connected to the sleeve 42, a spring 52 is sleeved on the outer wall of the sliding shaft 5, and a drive assembly is provided inside the first support frame 13.
[0036] Through the above technical solution, while the cleaning roller 26 moves up and down, it works in conjunction with the drive component to make the sleeve 42 vibrate back and forth, which in turn drives the filter plate 43 to vibrate back and forth, thereby preventing the filter plate 43 from being blocked by drug residues.
[0037] Specifically, the drive assembly includes a cam 53, which is fixedly mounted on the outer wall of the first lead screw 15 and is used in conjunction with the housing 42.
[0038] With the above technical solution, the first lead screw 15 rotates while driving the cam 53 to rotate. When the protruding end of the cam 53 rotates to a position close to the sleeve 42, the sleeve 42 moves to one side under the push of the cam 53, driving the connecting block 51 to move to one side and pressing the spring 52. When the protruding end of the cam 53 rotates to a position away from the sleeve 42, the sleeve 42 moves back under the action of the spring 52. This process repeats, and while the cam 53 rotates, it drives the sleeve 42 to vibrate back and forth.
[0039] In use, the medicine is placed on the holding plate 12, and weighed by the weighing body 11. After weighing, the medicine is removed, and the first motor 14 is started, driving the first lead screw 15 to rotate, causing the first slider 16 to move downward, which in turn moves the second support frame 2 downward, bringing the cleaning roller 26 close to the holding plate 12. The second motor 21 is then started, driving the second lead screw 22 to rotate, causing the second slider 23 to move laterally, which in turn moves the fixed frame 24 laterally, causing the cleaning roller 26 to move laterally. Simultaneously, the lateral movement of the fixed frame 24 drives the spur gear 31 to move laterally. This is achieved by setting... The rack 32 drives the spur gear 31 to rotate while moving laterally, causing the second rotating shaft 3 to rotate while moving laterally, which in turn drives the first bevel gear 33 to rotate, causing the second bevel gear 34 to rotate, which in turn drives the first rotating shaft 25 to rotate. This causes the cleaning roller 26 to rotate while moving laterally. The rotating cleaning roller 26 facilitates the cleaning of medicine residues adhering to the material receiving plate 12, preventing the medicine residues from continuously adhering to the material receiving plate 12. While the cleaning roller 26 is rotating, the air pump 4 is started to draw air, which can drive the medicine residues swept off by the cleaning roller 26 along the dust suction head. 47 and hose 46 are inserted into the housing 42. The filter plate 43 filters the medicine residue entering the housing 42, leaving the residue at the top of the filter plate 43. Excess air is discharged through the filter plate 43. After collecting a certain amount of medicine residue, to prevent the filter plate 43 from becoming clogged, the cover plate 44 is lifted, causing the connecting frame 45 to move upwards, making it easier to remove the filter plate 43 for cleaning. After cleaning, the first motor 14 controls the cleaning roller 26 to move upwards again, facilitating the subsequent use of the material receiving plate 12. As the first lead screw 15 rotates, it drives the cam 53 to rotate. When the protruding end of the cam 53 rotates to a position close to the sleeve 42, the sleeve 42 moves to one side under the push of the cam 53, which drives the connecting block 51 to move to one side and compresses the spring 52. When the protruding end of the cam 53 rotates to a position away from the sleeve 42, the sleeve 42 moves back under the action of the spring 52. This process repeats itself. As the cam 53 rotates, it drives the sleeve 42 to shake back and forth, causing the filter plate 43 to shake back and forth, thereby preventing the filter plate 43 from being blocked by drug residues.
[0040] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A clean weighing device for chemical pharmaceutical production, characterized in that, Includes a base (1), a weighing body (11) is provided on the top of the base (1), a material holding plate (12) is provided on the top of the weighing body (11), a first support frame (13) is fixedly connected to the top of the base (1), a first motor (14) is fixedly connected to the top of the first support frame (13), the output end of the first motor (14) extends into the interior of the first support frame (13) and is fixedly connected to a first lead screw (15), the outer wall of the first lead screw (15) is connected to a first slider (16) through a lead screw nut pair, the first slider (16) is slidably connected to the first support frame (13), and one end of the first slider (16) is fixedly connected to a second support frame (…). 2) A second motor (21) is fixedly connected to one side of the second support frame (2). The output end of the second motor (21) extends into the interior of the second support frame (2) and is fixedly connected to a second lead screw (22). The outer wall of the second lead screw (22) is connected to a second slider (23) through a lead screw nut pair. The second slider (23) is slidably connected to the second support frame (2). A fixed frame (24) is fixedly connected to the bottom of the second slider (23). A first rotating shaft (25) is rotatably connected to the inner wall of the fixed frame (24). A cleaning roller (26) is fixedly connected to the outer wall of the first rotating shaft (25). A linkage component is provided at the bottom of the second support frame (2).
2. The clean weighing device for chemical pharmaceutical production according to claim 1, characterized in that, The linkage assembly includes a second rotating shaft (3), which is disposed on the inner wall of the fixed frame (24) and rotatably connected to the fixed frame (24). A first bevel gear (33) is fixedly connected to the bottom of the second rotating shaft (3), and a second bevel gear (34) is fixedly connected to the outer wall of the first rotating shaft (25). The first bevel gear (33) and the second bevel gear (34) are meshed together. A spur gear (31) is fixedly connected to the outer wall of the second rotating shaft (3), and a rack (32) is fixedly connected to the bottom of the second support frame (2). The spur gear (31) and the rack (32) are meshed together.
3. The clean weighing device for chemical pharmaceutical production according to claim 1, characterized in that, A sleeve (42) is slidably connected to the top of the base (1). A cover plate (44) is provided on the top of the sleeve (42). An air pump (4) is fixedly connected to the inner wall of the first support frame (13). A pipe (41) is connected to the output end of the air pump (4). One end of the pipe (41) extends into the inside of the sleeve (42). A vacuum head (47) is fixedly connected to one side of the fixed frame (24). A hose (46) is connected to the outer wall of the vacuum head (47). One end of the hose (46) passes through the cover plate (44) and extends into the inside of the sleeve (42).
4. A clean weighing device for chemical pharmaceutical production according to claim 3, characterized in that, The inner wall of the casing (42) is slidably connected to a filter plate (43), and the top of the filter plate (43) is fixedly connected to a connecting frame (45), which is fixedly connected to the cover plate (44).
5. A clean weighing device for chemical pharmaceutical production according to claim 3, characterized in that, The inner wall of the base (1) is fixedly connected to a sliding shaft (5), and the outer wall of the sliding shaft (5) is slidably connected to a connecting block (51). The connecting block (51) is fixedly connected to the sleeve (42). The outer wall of the sliding shaft (5) is fitted with a spring (52). The first support frame (13) is provided with a drive assembly inside.
6. A clean weighing device for chemical pharmaceutical production according to claim 5, characterized in that, The drive assembly includes a cam (53), which is fixedly mounted on the outer wall of the first lead screw (15) and is used in conjunction with the sleeve (42).