A medicine powder weighing system

Abstract

The invention discloses a powder weighing system, comprising a support structure, a conveying structure arranged on the support structure, a dosing structure arranged on the support structure, and a weighing structure arranged on the support structure and located below the output end of the conveying structure, wherein the support structure comprises a bottom plate for installing the weighing structure, a support plate arranged on the bottom plate, and a movable plate rotatably arranged on the support plate and used for installing the conveying structure, wherein the conveying structure comprises a rotating tube, wherein one end of the rotating tube close to the rotation center of the movable plate is located above the weighing structure, and a driving structure is arranged on the bottom plate. The beneficial effects of the invention are as follows: the scheme utilizes the rotation of the rotating tube to convey explosive powder, and can control the amount of dosing by controlling parameters such as the rotation speed of the rotating tube, thereby weighing explosives that meet the quantity requirements, which is conducive to realizing continuous and quantitative addition and weighing, and improving the efficiency and accuracy of dosing and weighing.

Description

Technical Field

[0001] The invention relates to the technical field of explosive weighing, in particular to a powder weighing system. Background Art

[0002] At present, the charging methods of explosives, pyrotechnics and civilian hazardous chemicals industries mostly adopt the traditional production method of manual feeding and balance measurement, which has poor product weight stability, low production efficiency, low degree of automation, direct contact between manual and chemical agents, and inability to isolate man and machine, which poses a great safety hazard. Weighing and metering control relies on manual experience, poor product consistency, and high costs for batch production, which cannot form efficient production capacity and seriously restrict the development of the industry. Summary of the invention

[0003] To overcome the deficiencies of the prior art, the present invention aims to provide a powder weighing system for improving the efficiency and accuracy of weighing explosive powder and realizing mechanized operation so that workers can stay away from the work site to ensure safety.

[0004] The present invention is achieved through the following technical scheme: a powder weighing system, including a supporting structure, a conveying structure arranged on the supporting structure, a dosing structure arranged on the supporting structure, and a weighing structure arranged on the supporting structure and located below the output end of the conveying structure, the supporting structure including a bottom plate for installing the weighing structure, a supporting plate arranged on the bottom plate, a movable plate rotatably arranged on the support plate and used for installing the conveying structure, the conveying structure including a rotating tube rotatably arranged on the movable plate, one end of the rotating tube close to the rotation center of the movable plate is located above the weighing structure, and a driving structure transmission-connected to the movable plate is arranged on the bottom plate.

[0005] Furthermore, in order to better realize the present invention, the driving structure includes a driving base, a screw arranged on the driving base, a screw nut arranged on the screw, a slider transmission-connected to the screw nut, a transmission rod hinged to the slider, and a transmission block hinged to the transmission rod and connected to the movable plate.

[0006] Furthermore, in order to better realize the present invention, the driving base is provided with an adjustment bearing seat for supporting both ends of the screw, the driving base is provided with a guide rail parallel to the screw, the slider is slidably connected to the guide rail, and the base plate is provided with a driving motor connected to the screw through a belt drive chain.

[0007] Furthermore, in order to better realize the present invention, the conveying structure also includes a transmission tube mounted on the outer layer of the rotating tube, the movable plate is provided with a conveying bearing seat for supporting both ends of the transmission tube, and the movable plate is provided with a conveying motor connected to the transmission tube through a conveying belt chain.

[0008] Furthermore, in order to better realize the present invention, the movable plate is provided with a dosing bottom plate through a support support, the dosing bottom plate is provided with a feed hopper located above the weighing structure, and one end of the rotating tube extends into the feed hopper.

[0009] Furthermore, in order to better realize the present invention, the dosing structure includes a finishing structure arranged on the dosing base plate, the finishing structure includes a finishing module arranged on the dosing base plate, and a finishing feed bin arranged on the finishing module, the finishing module is provided with a finishing through hole connecting the feed hopper and the finishing feed bin, the finishing module is slidably provided with a perforated drawer plate A located between the finishing through hole and the finishing feed bin, the finishing module is slidably provided with a perforated drawer plate B located between the finishing through hole and the feed hopper, and the finishing module is slidably provided with a finishing adjustment rod capable of extending into the finishing through hole.

[0010] Furthermore, in order to better realize the present invention, the dosing structure also includes a rough adding structure arranged on the dosing bottom plate, and the rough adding structure includes a rough adding feed bin arranged on the dosing bottom plate, a rough adding module arranged below the rough adding feed bin, and a curved pipe arranged below the rough adding module and connected to the rotating pipe, a rough adding through hole connecting the curved pipe and the rough adding feed bin is arranged in the rough adding module, a C-perforated drawer plate located between the rough adding through hole and the rough adding feed bin is slidably arranged in the rough adding module, and a D-perforated drawer plate located between the rough adding through hole and the curved pipe is slidably arranged in the rough adding module.

[0011] Furthermore, in order to better realize the present invention, the free end of the bent pipe is provided with a quick-release joint which is detachably connected to the rotating tube, the dosing base plate is provided with a roughing linear drive structure, the output shaft of the roughing linear drive structure is transmission-connected to a roughing bracket, and the roughing module is arranged on the roughing bracket.

[0012] Furthermore, in order to better realize the present invention, the weighing structure includes a rotating structure arranged on the base plate, a turntable arranged on the rotating structure, a weighing module arranged under the turntable and aligned with the output end of the conveying structure, and a plurality of material cup sleeves arranged on the turntable for installing material cups and capable of being aligned with the weighing module.

[0013] Furthermore, in order to better realize the present invention, a lower hopper is arranged between the turntable and the output end of the conveying structure, and a lower hopper bracket with adjustable height is arranged on the bottom plate; a buffer pad is arranged between the weighing module and the bottom plate.

[0014] The beneficial effects achieved by this program are:

[0015] This solution utilizes the rotation of a rotating tube to transport explosive powder, and can control the amount of added powder by controlling parameters such as the rotation speed of the rotating tube, thereby weighing explosive powder that meets the quantity requirements, which is conducive to achieving continuous and quantitative addition and weighing, and improving the efficiency and accuracy of adding and weighing. Since mechanical equipment is used for weighing, semi-automatic and automatic operation can be achieved, so that workers can perform remote addition and weighing, and keep the workers away from the operation site, thereby ensuring the safety of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the main sectional view of the weighing system;

[0017] Figure 2 It is a three-dimensional schematic diagram of the weighing system;

[0018] Figure 3 It is a top view of the weighing system;

[0019] Figure 4 It is a schematic diagram of the explosive weighing structure;

[0020] Figure 5 Schematic diagram of adding structure to the pyrotechnics;

[0021] Figure 6 is a schematic diagram of the drive structure;

[0022] Figure 7 for Figure 1 A magnified image of point A;

[0023] Figure 8 for Figure 2 The enlarged view of point B;

[0024] Fig. 9 for Figure 2 Enlarged view of point C;

[0025] Fig.10 is a schematic diagram of the structure of the rotating tube;

[0026] Among them, 1-bottom plate, 2-support plate, 3-rotating tube, 4-driving structure, 41-driving base, 42-belt drive chain, 43-screw, 44-guide rail, 45-screw nut, 46-slider, 47-adjusting bearing seat, 48-transmission rod, 49-transmission block, 410-driving motor, 5-transmission tube, 51-conveying bearing seat, 52-conveying belt chain, 6-movable plate, 7-quick release connector, 8-vibrator, 9-bend pipe, 11-rough feeding bin, 111-rough feeding module, 112-C belt hole Drawing plate, 113-D drawing plate with holes, 12-driving roughing bracket, 13-roughing linear driving structure, 14-fine adding motor, 15-fine adding feeding bin, 151-fine adding module, 152-A drawing plate with holes, 153-B drawing plate with holes, 154-fine adding adjusting rod, 16-weighing module, 17-feeding hopper, 18-lower hopper, 181-lower hopper bracket, 19-material cup, 20-turntable, 21-material cup sleeve, 22-rotating structure, 23-conveying motor, 24-quick clamp, 25-dosing bottom plate. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0028] Embodiment 1:

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, in this embodiment, a powder weighing system includes a supporting structure, a conveying structure arranged on the supporting structure, a dosing structure arranged on the supporting structure, and a weighing structure arranged on the supporting structure and located below the output end of the conveying structure, the supporting structure includes a base plate 1 for installing the weighing structure, a supporting plate 2 arranged on the base plate 1, and a movable plate 6 rotatably arranged on the support plate 2 and used for installing the conveying structure, the conveying structure includes a rotating tube 3 rotatably arranged on the movable plate 6, one end of the rotating tube 3 close to the rotation center of the movable plate 6 is located above the weighing structure, and a driving structure 4 transmission-connected to the movable plate 6 is arranged on the base plate 1.

[0030] When weighing is required, a certain amount of explosive powder is added to the rotating tube 3, and the explosive powder in the rotating tube 3 is driven to rotate so that the explosive powder in the rotating tube 3 enters the weighing structure for weighing. The addition can be performed multiple times until the weighing structure weighs enough explosive powder. The amount of explosive powder entering the weighing structure can also be controlled by controlling the rotation speed, rotation angle, number of revolutions and other parameters of the rotating tube 3, thereby improving the accuracy and efficiency of weighing.

[0031] The driving structure 4 can drive the movable plate 6 to rotate. For explosives with good fluidity, the driving structure 4 is used to adjust the angle of the movable plate 6 to a negative number. Even if the movable plate 6 rotates downward, the angle of the rotating tube 3 is adjusted to a negative number to avoid exceeding the required amount of explosives entering the weighing structure. For explosives with poor fluidity, the driving structure 4 is used to adjust the angle of the movable plate 6 to a positive number. Even if the movable plate 6 rotates upward, the angle of the rotating tube 3 is adjusted to a positive number to avoid less explosives entering the weighing structure than required. In this way, the angle of the rotating tube 3 is adjusted according to the fluidity of the explosives, which can improve the control accuracy of the dosing, thereby improving the accuracy and efficiency of the weighing. The driving structure 4 also uses remote control to achieve control, thereby improving the accuracy and safety of control.

[0032] Embodiment 2:

[0033] like Figure 4 , Figure 5 , Figure 6 As shown, based on the above embodiment, in this embodiment, the driving structure 4 includes a driving base 41, a screw 43 arranged on the driving base 41, a screw nut 45 arranged on the screw 43, a slider 46 transmission-connected to the screw nut 45, a transmission rod 48 hinged to the slider 46, and a transmission block 49 hinged to the transmission rod 48 and connected to the movable plate 6.

[0034] The driving base 41 is used to support the lead screw 43, so that the rotation of the lead screw 43 can drive the lead screw nut 45 to move along the length direction of the lead screw 43, and the lead screw nut 45 drives the slider 46 to move. The movement of the slider 46 drives the transmission block 49 through the transmission rod 48 to drive the movable plate 6 to rotate.

[0035] The lead screw 43 can be used to improve the control of the movement accuracy of the slider 46, thereby improving the control of the rotation accuracy of the movable plate 6, and can achieve micro-adjustment to improve the control of the dosing accuracy.

[0036] In this embodiment, the length direction of the lead screw 43 is perpendicular to the rotation center of the movable plate 6, so as to improve the control accuracy and simplify the control program.

[0037] In this embodiment, the driving base 41 is provided with an adjustment bearing seat 47 for supporting both ends of the screw 43, the driving base 41 is provided with a guide rail 44 parallel to the screw 43, the slider 46 is slidably connected to the guide rail 44, and the base plate 1 is provided with a driving motor 410 connected to the screw 43 through a belt drive chain 42.

[0038] The screw 43 is supported by the adjusting bearing seat 47 to improve the stability of the screw 43 and reduce the wear of the screw 43. The guide rail 44 can guide and limit the slider 46 to prevent the slider 46 from deflecting and affecting the transmission accuracy and efficiency.

[0039] In this embodiment, the belt transmission chain 42 is used to drive the lead screw 43 to rotate, which can play a role in buffering and absorbing vibration, reduce the vibration transmitted to the lead screw 43 by the drive motor 410, and prevent the lead screw 43 from being affected by the vibration and reducing the control accuracy. In this embodiment, a vibration-damping pad can be set between the drive motor 410 and the base plate 1 to avoid or reduce the vibration transmitted to the base plate 1 by the drive motor 410, and avoid or reduce the vibration of the drive motor 410 from being transmitted to other structures through the base plate 1.

[0040] Embodiment 3:

[0041] On the basis of the above embodiments, in this embodiment, the conveying structure also includes a transmission tube 5 mounted on the outer layer of the rotating tube 3, and the movable plate 6 is provided with a conveying bearing seat 51 for supporting both ends of the transmission tube 5, and the movable plate 6 is provided with a conveying motor 23 that is connected to the transmission tube 5 through a conveying belt chain 52.

[0042] The conveying motor 23 is used to drive the transmission tube 5 to rotate through the conveying belt chain 52, and the transmission tube 5 drives the rotating tube 3 to rotate by friction. The conveying motor 23 is used to drive the transmission tube 5 to rotate through the conveying belt chain 52, and the conveying belt chain 52 can reduce the vibration transmitted from the conveying motor 23 to the transmission tube 5, thereby preventing the vibration of the transmission tube 5 from affecting the accuracy of dosing.

[0043] In this embodiment, the movable plate 6 is supported by a support and provided with a dosing bottom plate 25 , and a feed hopper 17 located above the weighing structure is provided on the dosing bottom plate 25 , and one end of the rotating tube 3 extends into the feed hopper 17 .

[0044] The feed hopper 17 is used to collect the explosives and propellants outputted from the rotating tube 3 to prevent the explosives and propellants from leaking.

[0045] Embodiment 4:

[0046] like Fig. 9As shown, on the basis of the above embodiments, in this embodiment, the dosing structure includes a finishing structure arranged on the dosing base plate 25, and the finishing structure includes a finishing module 151 arranged on the dosing base plate 25, and a finishing feed bin 15 arranged on the finishing module 151, and the finishing module 151 is provided with a finishing through hole connecting the feed hopper 17 and the finishing feed bin 15, and the finishing module 151 is provided with a A perforated drawer plate 152 located between the finishing through hole and the finishing feed bin 15, and the finishing module 151 is provided with a B perforated drawer plate 153 located between the finishing through hole and the feed hopper 17, and the finishing module 151 is provided with a finishing adjustment rod 154 that can extend into the finishing through hole.

[0047] The finishing structure is used to accurately control the amount of added medicine, and the required explosive is added into the finishing feed bin 15. By moving the A-perforated draw plate 152, the through hole on the A-perforated draw plate 152 is aligned with the finishing through hole, and the explosive in the finishing feed bin 15 enters the finishing through hole. Then, by moving the A-perforated draw plate 152, the through hole on the A-perforated draw plate 152 is staggered with the finishing through hole, and the B-perforated draw plate 153 is moved to align the through hole on the B-perforated draw plate 153 with the finishing through hole, and the explosive in the finishing through hole enters the feed hopper 17. Then, by moving the B-perforated draw plate 153, the through hole on the B-perforated draw plate 153 is staggered with the finishing through hole, and the finishing process is completed.

[0048] By driving the fine adjustment rod 154 to move, the length of the fine adjustment rod 154 extending into the fine through hole can be controlled to change the volume of the fine through hole, thereby controlling the amount of medicine added to the fine through hole. A fine motor 14 is provided on the medicine adding base plate 25, and the fine motor 14 is transmission-connected to a linear drive structure, and the linear drive structure is transmission-connected to the fine adjustment rod 154.

[0049] In this embodiment, a quick clamp 24 for clamping the finishing module 151 is provided on the dosing base plate 25. The quick clamp 24 is used to keep the finishing module 151 stable. When the interior of the finishing module 151 needs to be cleaned, the finishing module 151 can also be quickly removed.

[0050] In this embodiment, the dosing structure also includes a rough adding structure arranged on the dosing bottom plate 25, and the rough adding structure includes a rough adding feed bin 11 arranged on the dosing bottom plate 25, a rough adding module 111 arranged below the rough adding feed bin 11, and a curved pipe 9 arranged below the rough adding module 111 and connected to the rotating tube 3. A rough adding through hole connecting the curved pipe 9 and the rough adding feed bin 11 is arranged in the rough adding module 111, and a C-perforated drawer plate 112 is slidably arranged in the rough adding module 111 and located between the rough adding through hole and the rough adding feed bin 11, and a D-perforated drawer plate 113 is slidably arranged in the rough adding module 111 and located between the rough adding through hole and the curved pipe 9.

[0051] like Figure 7 , Figure 8 As shown, the charging structure is used for preliminary rough charging, and explosives are placed in the rough charging feed bin 11. The C-perforated draw plate 112 is moved to align the through holes on the C-perforated draw plate 112 with the rough charging through holes, and the explosives in the rough charging feed bin 11 enter the rough charging through holes. The C-perforated draw plate 112 is moved again to stagger the through holes on the C-perforated draw plate 112 with the rough charging through holes. The D-perforated draw plate 113 is moved to align the through holes on the D-perforated draw plate 113 with the rough charging through holes, and the explosives in the rough charging through holes enter the rotating tube 3 through the bent pipe 9. The D-perforated draw plate 113 is moved again to stagger the through holes on the D-perforated draw plate 113 with the rough charging through holes.

[0052] In this embodiment, a vibrator 8 is provided on the bent pipe 9, and a vibration force is applied to the bent pipe 9 by the vibrator 8, so that the bent pipe 9 vibrates, and the explosive in the bent pipe 9 can be completely introduced into the rotating tube 3, thereby avoiding the explosive remaining in the bent pipe 9 and ensuring the accuracy of the rough dosing.

[0053] In this embodiment, the A perforated drawer plate 152, B perforated drawer plate 153, C perforated drawer plate 112, and D perforated drawer plate 113 are respectively connected to cylinders, so that the cylinders are used to control the A perforated drawer plate 152, B perforated drawer plate 153, C perforated drawer plate 112, and D perforated drawer plate 113, respectively, which is conducive to realizing remote, automatic / semi-automatic control.

[0054] like Fig.10 As shown, in this embodiment, the free end of the curved pipe 9 is provided with a quick-release connector 7 which is detachably connected to the rotating tube 3, the dosing base plate 25 is provided with a roughing linear drive structure 13, the output shaft of the roughing linear drive structure 13 is transmission-connected to a roughing bracket 12, and the roughing module 111 is arranged on the roughing bracket 12.

[0055] The roughing linear drive structure 13 can drive the roughing bracket 12 to drive the roughing structure as a whole to move in a linear direction, so that the quick-release joint 7 can be quickly connected or disconnected from the rotating tube 3, which is conducive to improving the efficiency of installation or disassembly. The rotating tube 3 is provided with a shaft shoulder located between the transmission tube 5 and the quick-release joint 7. Under the pressure of the quick-release joint 7, the shaft shoulder contacts the transmission tube 5, so as to limit the rotating tube 3.

[0056] In this embodiment, the quick-release joint 7 is dynamically sealed to the rotating tube 3 to prevent explosives from spilling from the gap between the quick-release joint 7 and the rotating tube 3, or to prevent explosives from entering the gap between the quick-release joint 7 and the rotating tube 3, which would cause a risk of explosion due to friction.

[0057] The inner hole of the quick-release joint 7 is designed as a tapered hole whose large end is connected to the inner hole of the rotating tube 3, so that the large end diameter of the inner hole of the quick-release joint 7 is less than or equal to the inner hole diameter of the rotating tube 3, and the small end diameter of the inner hole of the quick-release joint 7 is greater than or equal to the inner hole diameter of the bent tube 9, so as to avoid the residual explosive in the quick-release joint 7 and affect the accuracy of the rough dosing.

[0058] Embodiment 5:

[0059] like Figure 4 As shown, based on the above embodiment, in this embodiment, the weighing structure includes a rotating structure 22 arranged on the base plate 1, a turntable 20 arranged on the rotating structure 22, a weighing module 16 arranged under the turntable 20 and aligned with the output end of the conveying structure, and a plurality of material cup sleeves 21 arranged on the turntable 20 for installing material cups 19 and capable of being aligned with the weighing module 16.

[0060] When weighing is required, the rotating structure 22 is used to drive the turntable 20 to rotate, so that the material cup sleeve 21 containing the material cup 19 is aligned with the weighing module 16, and the explosives output from the conveying structure fall into the material cup 19. The weighing module 16 weighs the explosives in the material cup 19 in real time until the weighed explosives meet the requirements and then stops adding. The rotating structure 22 then drives the turntable 20 to rotate, so that the material cup 19 containing explosives is staggered with the weighing module 16, and the next material cup 19 without explosives is aligned with the weighing module 16, so as to facilitate the next weighing. In this way, the time interval between two weighings can be shortened, which is conducive to improving work efficiency.

[0061] A lower hopper 18 is provided between the turntable 20 and the output end of the conveying structure, and a lower hopper bracket 181 with adjustable height is provided on the bottom plate 1 .

[0062] The lower hopper 18 can be used to concentrate the explosives, so as to prevent the explosives from being dispersed during the falling process and unable to completely enter the material cup 19, which is conducive to ensuring the accuracy of weighing the explosives and avoiding waste or potential safety hazards. The lower hopper bracket 181 is used to facilitate the adjustment of the height position of the lower hopper 18.

[0063] A buffer pad is provided between the weighing module 16 and the base plate 1. The buffer pad can be provided to achieve a vibration isolation effect, thereby preventing the vibration of the base plate 1 from being transmitted to the weighing module 16 and affecting the accuracy of the weighing module 16.

[0064] In this embodiment, the weighing module 16 adopts the existing technology, and its accuracy requirement is selected according to the needs. Its specific structure and working principle are not used as the improvement points of this solution, and the specific structure and working principle of the weighing module 16 are not repeated here.

[0065] In this embodiment, other contents not described are the same as those in the above embodiment, and thus will not be described in detail.

[0066] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A medicine powder weighing system, Features: The invention comprises a support structure, a conveying structure arranged on the support structure, a dosing structure arranged on the support structure, and a weighing structure arranged on the support structure and located below the output end of the conveying structure, wherein the support structure comprises a bottom plate (1) for mounting the weighing structure, a support plate (2) arranged on the bottom plate (1), and a movable plate (6) rotatably arranged on the support plate (2) and for mounting the conveying structure, wherein the conveying structure comprises a rotating tube (3) rotatably arranged on the movable plate (6), wherein one end of the rotating tube (3) close to the rotation center of the movable plate (6) is located above the weighing structure, and a driving structure (4) drivingly connected to the movable plate (6) is arranged on the bottom plate (1); The movable plate (6) is provided with a dosing bottom plate (25) through a support support, and a feed hopper (17) located above the weighing structure is provided on the dosing bottom plate (25), and one end of the rotating tube (3) extends into the feed hopper (17); The dosing structure comprises a finishing structure arranged on a dosing base plate (25), the finishing structure comprising a finishing module (151) arranged on the dosing base plate (25), and a finishing feed bin (15) arranged on the finishing module (151); a finishing through hole connecting the feed hopper (17) and the finishing feed bin (15) is arranged in the finishing module (151); a perforated draw plate (152) A is slidably arranged in the finishing module (151) and is located between the finishing through hole and the finishing feed bin (15); a perforated draw plate (153) B is slidably arranged in the finishing module (151) and is located between the finishing through hole and the feed hopper (17); and a finishing adjustment rod (154) capable of extending into the finishing through hole is slidably arranged in the finishing module (151); The drug adding structure further comprises a rough adding structure arranged on the drug adding bottom plate (25), the rough adding structure comprising a rough adding feed bin (11) arranged on the drug adding bottom plate (25), a rough adding module (111) arranged below the rough adding feed bin (11), and a curved pipe (9) arranged below the rough adding module (111) and connected to the rotating pipe (3); a rough adding through hole connecting the curved pipe (9) and the rough adding feed bin (11) is arranged in the rough adding module (111); a C-shaped perforated draw plate (112) is slidably arranged in the rough adding module (111) and is located between the rough adding through hole and the rough adding feed bin (11); and a D-shaped perforated draw plate (113) is slidably arranged in the rough adding module (111) and is located between the rough adding through hole and the curved pipe (9).

2. A medicine powder weighing system according to claim 1, Features: The driving structure (4) comprises a driving base (41), a lead screw (43) arranged on the driving base (41), a lead screw nut (45) arranged on the lead screw (43), a slider (46) drivingly connected to the lead screw nut (45), a transmission rod (48) hinged to the slider (46), and a transmission block (49) hinged to the transmission rod (48) and connected to the movable plate (6).

3. A medicine powder weighing system according to claim 2, Features: The driving base (41) is provided with an adjustment bearing seat (47) for supporting both ends of the lead screw (43); the driving base (41) is provided with a guide rail (44) parallel to the lead screw (43); the slider (46) is slidably connected to the guide rail (44); and the base plate (1) is provided with a driving motor (410) connected to the lead screw (43) via a belt transmission chain (42).

4. A medicine powder weighing system according to any one of claims 1, 2 and 3, Features: The conveying structure further comprises a transmission tube (5) sleeved on the outer layer of the rotating tube (3); the movable plate (6) is provided with a conveying bearing seat (51) for supporting both ends of the transmission tube (5); and the movable plate (6) is provided with a conveying motor (23) connected to the transmission tube (5) through a conveying belt chain (52).

5. A medicine powder weighing system according to claim 4, Features: The free end of the curved tube (9) is provided with a quick-release joint (7) detachably connected to the rotating tube (3); a roughing linear drive structure (13) is provided on the medicine adding base plate (25); an output shaft of the roughing linear drive structure (13) is drivingly connected to a roughing bracket (12); and the roughing module (111) is provided on the roughing bracket (12).

6. A medicine powder weighing system according to claim 5, Features: The weighing structure comprises a rotating structure (22) arranged on a bottom plate (1), a turntable (20) arranged on the rotating structure (22), a weighing module (16) arranged under the turntable (20) and aligned with the output end of the conveying structure, and a plurality of material cup sleeves (21) arranged on the turntable (20) for mounting material cups (19) and capable of being aligned with the weighing module (16).

7. A medicine powder weighing system according to claim 6, Features: A lower hopper (18) is provided between the turntable (20) and the output end of the conveying structure, and a lower hopper bracket (181) with adjustable height is provided on the bottom plate (1); and a buffer pad is provided between the weighing module (16) and the bottom plate (1).

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