A powder dispensing apparatus

Abstract

This invention provides a powder dispensing device, comprising: a frame on which multiple powder dispensing cabinets are mounted; a collection pipe located below the outlets of the powder dispensing cabinets; at least two powder dispensing cabinets are grouped close to each other, and a collection pipe is provided on the frame corresponding to each group of powder dispensing cabinets; the powder dispensing cabinets are arranged at an angle from top to bottom, with the outlets of the same group of powder dispensing cabinets close to each other. By arranging the powder dispensing cabinets at an angle from top to bottom, this invention brings the outlets of the same group of powder dispensing cabinets closer together, eliminating the need to expand the horizontal dimension of the upper inlet of the collection pipe to cover the dispersed outlets. This reduces the volume of the collection pipe, directly reducing the contact area between the powder and the side wall of the collection pipe and the friction time during the descent, thus reducing the amount of residue adhering to the side wall of the collection pipe, reducing raw material waste, and improving powder metering accuracy.

Description

Technical Field

[0001] This invention relates to the field of powder material metering and dispensing equipment, specifically to a powder dispensing equipment suitable for Mongolian medicine, traditional Chinese medicine, and other powder materials. Background Technology

[0002] In the fields of pharmaceuticals (especially Mongolian and traditional Chinese medicine), food, fine chemicals, and new materials, the precise metering and packaging of powder materials is a key production process to ensure product quality and improve production efficiency.

[0003] Currently available powder dispensing equipment includes a frame, multiple powder dispensing cabinets, and a transfer module. The multiple powder dispensing cabinets are installed side-by-side on the frame to store and quantitatively dispense different types of powders. To reduce receiving points and simplify subsequent transfer processes, the equipment is usually also equipped with a collection pipe. The core function of the collection pipe is to collect the powder dispensed from two or more powder dispensing cabinets and guide it into a medicine bag (or container) directly below them. The transfer module then transports the medicine bag containing the powder to the next receiving point (if multiple batches of material need to be mixed) or the next process (such as sealing).

[0004] Existing collection pipes generally adopt a variable cross-section structure with a large inlet at the top and a small outlet at the bottom to introduce powder into the medicine bag.

[0005] However, due to the layout limitations of the powder dispensing cabinets, the outlets of each cabinet are distributed in a dispersed manner on the rack. This dispersed distribution of outlets results in significant differences in the drop point of the powder as it falls from the cabinet into the collection pipe.

[0006] Therefore, it is necessary to increase the horizontal dimension of the upper inlet of the converging pipe. The industry usually adopts two design methods: one is to reduce the angle between the side wall of the converging pipe and the horizontal direction, so that the pipe inlet expands outward in a "trumpet" shape; the other is to increase the vertical extension length of the converging pipe, thereby indirectly expanding the inlet coverage area by lengthening the upper section of the pipe.

[0007] However, both of the above design methods exacerbate the problem of powder adhesion and residue on the inner wall of the pipe. Residual powder not only wastes raw materials, but more seriously, it affects metering accuracy, causing the actual amount of powder loaded into the medicine bag to exceed or fall below the set value, thus resulting in the powder dosage exceeding the deviation range.

[0008] In view of this, the present invention is proposed. Summary of the Invention

[0009] This invention provides a powder dispensing device, which aims to solve the problem in existing powder dispensing devices where the powder dispensing cabinet outlets are distributed in a dispersed manner on the frame, resulting in a reduced sidewall inclination angle and / or increased extension length of the converging pipe, causing the powder dispensing dosage to exceed the deviation range.

[0010] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: a powder dispensing device, comprising: a frame on which multiple powder dispensing cabinets are installed; a collection pipe located below the outlet of the powder dispensing cabinets; at least two powder dispensing cabinets are arranged close to each other as a group, and a collection pipe is provided on the frame corresponding to each group of powder dispensing cabinets; the powder dispensing cabinets are arranged at an angle from top to bottom, and the outlets of the powder dispensing cabinets in the same group are close to each other.

[0011] Furthermore, a single cabinet hook is installed on the side of the powder dispensing cabinet near the collection pipe, and a single cabinet support device is installed on the frame. The powder dispensing cabinet is mounted and connected to the single cabinet support device through the single cabinet hook.

[0012] Furthermore, the single-cabinet support device includes: a single-cabinet support plate extending vertically; a hanging arm protruding vertically from the side of the single-cabinet support plate for hanging the single-cabinet hook; and a stop portion disposed below the hanging arm for supporting the powder dispensing single-cabinet; preferably, the stop portion is in contact with the side of the powder dispensing single-cabinet near the collecting pipe; preferably, the stop portion is connected to the powder dispensing single-cabinet by screws.

[0013] Furthermore, the single-cabinet support plate is inclined downwards from the side facing the powder dispensing cabinet, with the same inclination angle as the powder dispensing cabinet; the stop extends and bends from the side of the single-cabinet support plate facing the powder dispensing cabinet, fitting against the side of the powder dispensing cabinet near the collecting pipe; preferably, the powder dispensing cabinet includes a hopper and a drive module installed on the top of the hopper, the support shell of the drive module is configured as a cuboid structure, the single-cabinet hook is set on the support shell, and the stop abuts against the support shell.

[0014] Furthermore, the single cabinet support plate includes two oppositely arranged single cabinet support plates, each with a first hanging arm and a second hanging arm. The powder dispensing single cabinet is equipped with two single cabinet hooks, which are respectively hooked onto the first hanging arm and the second hanging arm. Preferably, the two powder dispensing single cabinets are close to each other as a group. The single cabinet support plate is configured as an isosceles trapezoidal structure with an upper base length greater than the lower base length. A hanging arm is set at each of the two upper base corners near the single cabinet support plate. The two powder dispensing single cabinets in the same group are hung on the two opposite single cabinet support plates.

[0015] Furthermore, a feeding pipe connected to the hopper is installed on the hopper wall near the converging pipe of the powder dispensing cabinet; the first hanging arm and the second hanging arm are respectively installed on the outside of the two cabinet support plates, and the feeding pipe is installed between the two cabinet support plates.

[0016] Furthermore, the feeding pipe includes a first feeding pipe section and a second feeding pipe section arranged sequentially in a direction away from the silo. The second feeding pipe section bends and extends relative to the first feeding pipe section towards the outlet of the silo. The angle between the second feeding pipe section and the axis of the silo is less than or equal to the angle between the powder dispensing cabinet and the vertical direction.

[0017] Furthermore, the transmission module of the powder dispensing equipment is used to move the medicine bag along a closed-loop movement path, and the converging pipe is located directly above the closed-loop movement path of the medicine bag; preferably, the frame includes a single cabinet support profile extending horizontally, the single cabinet support profile is located above the transmission module of the powder dispensing equipment, and parallel to the extension path of the transmission module; a single cabinet support plate is installed on the top of the single cabinet support profile; a downwardly extending pipe support arm is provided at the bottom of the single cabinet support profile, and the converging pipe is installed directly below the single cabinet support profile through the pipe support arm.

[0018] Furthermore, the side of the transmission module is provided with support rails at intervals, and the extension path of the support rails is a ring parallel to the extension path of the transmission module; the medicine bag holding mechanism of the powder dispensing equipment is installed on the transmission module, and the medicine bag holding mechanism is provided with support wheels that cooperate with the support rails; the interval between the transmission module and the support rails corresponds to the space of the medicine bag holding mechanism for accommodating the packaging bag.

[0019] Furthermore, a vibration drive assembly is provided on the side wall of the converging pipe; preferably, the vibration drive assembly includes an eccentric motor fixed on the outer side wall of the converging pipe and an eccentric block mounted on the motor shaft of the eccentric motor.

[0020] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0021] 1. This invention sets the powder dispensing cabinets at an angle from top to bottom, so that the outlets of the same group of powder dispensing cabinets are close to each other. This eliminates the need to expand the horizontal dimension of the upper inlet of the collection pipe to cover the dispersed outlets, thereby reducing the volume of the collection pipe. This directly reduces the contact area between the powder and the side wall of the collection pipe and the friction time during the falling process, reduces the amount of residue adhering to the side wall of the collection pipe, reduces the raw material waste rate, and improves the accuracy of powder metering.

[0022] 2. By setting up a mounting system between the powder dispensing cabinet and the frame, the present invention enables quick assembly and disassembly of the powder dispensing cabinet, facilitating the assembly and subsequent maintenance of the powder dispensing equipment by operators.

[0023] 3. By setting the feeding pipe between the two single cabinet support plates, the present invention can improve the structural compactness of the powder dispensing equipment and reduce the volume of the powder dispensing equipment while ensuring the number of single cabinets for powder dispensing.

[0024] 4. This invention improves the support effect of the medicine bag holding mechanism by setting support rails at intervals on the side of the transmission module and setting support wheels on the medicine bag holding mechanism that cooperate with the support rails, so that the medicine bag holding mechanism is always in a horizontal state. At the same time, the interval between the support rails and the transmission module can avoid the medicine bag. The medicine bag of the powder dispensing device can smoothly enter the space for accommodating the packaging bag from the bottom of the medicine bag holding mechanism, and the sealed medicine bag can smoothly fall from the space for accommodating the packaging bag.

[0025] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0027] Figure 1 This is a schematic diagram of the installation structure of the powder dispensing cabinet in an embodiment of the present invention;

[0028] Figure 2 This is an embodiment of the present invention. Figure 1 Enlarged view of point C in the middle;

[0029] Figure 3 This is a structural diagram illustrating the installation process of the powder dispensing cabinet in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the powder dispensing cabinet when it is installed in place according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the installation structure of a single powder dispensing cabinet in an embodiment of the present invention;

[0032] Figure 6 This is a top view of the transmission module in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of the powder dispensing cabinet in an embodiment of the present invention;

[0034] Figure 8 This is a cross-sectional view of the powder dispensing cabinet in an embodiment of the present invention;

[0035] Figure 9 This is an embodiment of the present invention. Figure 8 Enlarged view of point A in the middle;

[0036] Figure 10 This is an embodiment of the present invention. Figure 8 Enlarged view of point B in the middle;

[0037] Figure 11 This is a schematic diagram of the internal structure of the silo in an embodiment of the present invention;

[0038] Figure 12 This is a top view of the powder dispensing cabinet in an embodiment of the present invention.

[0039] Key components in the diagram: 11. Hopper; 111. Cylindrical section; 112. Conical section; 113. Feeding pipe; 1131. First feeding pipe section; 1132. Second feeding pipe section; 1133. Sealing cap; 114. Support ring; 12. Channel assembly; 121. Converging hole; 122. Conveying hole; 120. Tablet dispensing assembly; 1201. Tablet dispensing mounting component; 1202. Tablet dispensing body; 13. Drive module; 131. Support shell; 1311. Support top plate; 1312. Support bottom plate; 1313. Support side plate; 1321. Central gear; 1322. Planetary gear; 1323. Planetary gear Frame; 13231, Planetary gear carrier top plate; 13232, Planetary gear carrier bottom plate; 1324, Gear ring; 13240, Connecting piece; 133, First drive shaft; 1330, Drive motor; 134, Second drive shaft; 135, Bearing seat; 136, Precision control component; 1361, Encoder; 14, Discharge rod assembly; 141, Discharge screw; 142, Second stirring structure; 1421, First stirring section; 14211, First bushing; 14212, First stirring rod; 1422, Second stirring section; 14221, Second bushing; 14222, Second stirring rod; 1423, Third stirring section; 14231, Third bushing; 14232, Third stirring rod; 140, Universal coupling; 15, First stirring structure; 151, Connecting part; 1511, Connecting plate; 152, Scraping part; 1521, Main body section; 1522, Extension section; 1501, Adjusting base plate; 1502, Brush; 16, Single cabinet hook; 17, Single cabinet handle; 18, Material level detection module; 2, Frame; 21, Single cabinet support profile; 211, Pipe support arm; 22, Single cabinet support device; 221, Single cabinet support plate; 2211, Support plate base; 222, Hanging arm; 223, Stop part; 23, Chain support profile; 2 31. Chain guide rail; 3. Converging pipe; 30. Vibration drive assembly; 301. Eccentric motor; 302. Eccentric block; 303. Eccentric motor bracket; 4. Medicine bag holding mechanism; 40. Medicine bag; 41. Support wheel; 5. Transmission module; 50. Support rail; 51. Chain; 511. First transmission section; 512. Second transmission section; 513. Third transmission section; 5131. First transmission segment; 5132. Second transmission segment; 5133. Third transmission segment; 52. Chain drive assembly; 521. Chain drive gear; 53. Driven wheel; 54. Chain tensioning assembly; 55. Medicine bag holding mechanism mounting plate.

[0040] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "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 invention 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 this invention.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] like Figures 1 to 12 As shown in the embodiment of the present invention, a powder dispensing device is introduced. The powder dispensing device includes a frame 2, a powder dispensing cabinet, and a transmission module 5. The powder dispensing cabinet and the transmission module 5 are respectively installed on the frame 2. A medicine bag holding mechanism 4 is installed on the transmission module 5. The transmission module 5 is used to drive the medicine bag holding mechanism 4 to move along its extension path. The powder dispensing cabinet is used to quantitatively output the powder stored in its hopper 11, so that the powder quantitatively falls into the medicine bag 40 carried in the medicine bag holding mechanism 4.

[0045] The frame 2 is equipped with multiple powder dispensing cabinets for quantitatively dispensing different types of powders. To reduce the number of receiving points and simplify the subsequent transmission process, the powder dispensing equipment is also equipped with a converging pipe 3. The converging pipe 3 is located below the outlet of the powder dispensing cabinet and above the medicine bag holding mechanism 4. It is used to receive the powders output from two or more powder dispensing cabinets and guide them into the medicine bags 40 directly below them.

[0046] In this embodiment, at least two powder dispensing cabinets are grouped together close to each other. A converging pipe 3 is set on the frame 2 corresponding to each group of powder dispensing cabinets. Each converging pipe 3 only needs to match the outlet of one group of powder dispensing cabinets to achieve full reception. That is, each group of powder dispensing cabinets corresponds to one converging pipe 3, and the lower part of each converging pipe 3 is a receiving point. When the transmission module 5 moves the medicine bag 40 to the receiving point below the converging pipe 3, the outlet at the lower end of the converging pipe 3 corresponds to the bag opening at the top of the medicine bag 40. Among the multiple powder dispensing cabinets corresponding to this receiving point, the powder dispensing cabinet containing the powder required for the formula is working. The powder output from the powder dispensing cabinet falls into the medicine bag 40 below through the converging pipe 3.

[0047] The powder dispensing cabinets are arranged at an angle from top to bottom, with the outlets of the same group of powder dispensing cabinets close to each other. This eliminates the need to expand the horizontal dimension of the upper inlet of the collecting pipe 3 to cover the dispersed outlets, directly reducing the contact area between the powder and the side wall of the collecting pipe 3 and the friction time during the descent. This reduces the amount of residue adhering to the side wall of the collecting pipe 3, lowers the raw material waste rate, and improves the accuracy of powder metering.

[0048] Specifically, the outlets of the powder dispensing cabinets in the same group are close to each other, making the converging pipe 3 short and compact, which greatly reduces the amount of powder residue, making the equipment adaptable to the multi-powder metering needs of Mongolian medicine and traditional Chinese medicine compound preparations, and ensuring that the powder dosage is accurate and controllable.

[0049] In this embodiment, the two or more powder dispensing cabinets in the same group are symmetrically arranged with respect to the axis of the converging pipe 3. Specifically, the powder dispensing cabinets in the same group are symmetrical about the axis of the converging pipe 3, or the powder dispensing cabinets in the same group are evenly arranged around the axis of the converging pipe 3.

[0050] In this embodiment, the powder dispensing cabinet is inclined from top to bottom towards the converging pipe 3. A partition is provided inside the converging pipe 3 to divide the converging pipe 3 into multiple sub-channels. The number of sub-channels is the same as the number of powder dispensing cabinets in the group.

[0051] The axis of the collecting pipe 3 extends vertically. Preferably, the angle between the axis of the powder dispensing cabinet and the axis of the collecting pipe 3 is greater than 0° and less than or equal to 30°, thereby ensuring the stability of the powder dispensing cabinet's dispensing. More preferably, the angle between the axis of the powder dispensing cabinet and the axis of the collecting pipe 3 is 25°.

[0052] In this embodiment, the powder dispensing cabinet can be fixedly installed on the frame 2 in any way. Specifically, the powder dispensing cabinet can be fixed to the frame 2 with bolts.

[0053] In some preferred embodiments, the powder dispensing cabinet and the frame 2 are assembled using a quick-release structure.

[0054] Preferably, the powder dispensing cabinet is mounted and connected to the frame 2. Specifically, as shown... Figures 1 to 5 As shown in this embodiment, a single cabinet hook 16 is provided on the side of the powder dispensing cabinet near the converging pipe 3, and a single cabinet support device 22 is provided on the frame 2. The powder dispensing cabinet is mounted and cooperated with the single cabinet support device 22 through the single cabinet hook 16.

[0055] Specifically, the frame 2 includes a single-cabinet support profile 21, and the single-cabinet support device 22 is installed on the single-cabinet support profile 21. It includes a single-cabinet support plate 221, a hanging arm 222, and a stop 223. The single-cabinet support plate 221 is fixed to the top of the single-cabinet support profile 21 and extends vertically. The hanging arm 222 protrudes vertically from the side of the single-cabinet support plate 221 for the single-cabinet hook 16 to be attached. The stop 223 is located below the hanging arm 222 and is used to support the powder dispensing cabinet.

[0056] When installing the powder dispensing cabinet, simply hang the cabinet hook 16 on the mounting arm 222. Since the cabinet hook 16 is located on the side of the powder dispensing cabinet, the powder dispensing cabinet rotates relative to the cabinet support plate 221 under its own weight. The side wall of the powder dispensing cabinet located below the cabinet hook 16 abuts against the stop part 223 on the cabinet support plate 221, thereby stably hanging the powder dispensing cabinet on the frame 2.

[0057] In some possible embodiments, a single powder dispensing cabinet can be supported by a cabinet support plate 221, which can be equipped with one or more hanging arms 222, and the powder dispensing cabinet is equipped with a corresponding number of cabinet hooks 16.

[0058] In this embodiment, to improve the installation stability of the powder dispensing cabinet, after the powder dispensing cabinet is hung on the cabinet support plate 221, a bolt / screw structure can be installed between the powder dispensing cabinet and the frame 2 bracket and / or the cabinet support plate 221 for reinforcement. Since the powder dispensing cabinet can be stably held on the cabinet support plate 221 after hanging, the bolt / screw structure allows for convenient and quick installation.

[0059] Preferably, in this embodiment, the stop portion 223 is in contact with the side of the powder dispensing cabinet closest to the collecting pipe 3. This further enhances the supporting effect of the cabinet support plate 221 on the powder dispensing cabinet, thereby improving the installation stability of the powder dispensing cabinet.

[0060] Preferably, in this embodiment, the bolt / screw structure for reinforcing the powder dispensing cabinet is disposed between the stop 223 and the powder dispensing cabinet.

[0061] In some other preferred embodiments, the single-cabinet support device 22 for installing the powder dispensing cabinet includes two opposing single-cabinet support plates 221, with a first hanging arm and a second hanging arm respectively provided on the two single-cabinet support plates 221. The powder dispensing cabinet is provided with two single-cabinet hooks 16, which are respectively hooked onto the first hanging arm and the second hanging arm. That is, a single powder dispensing cabinet is supported by two single-cabinet support plates 221, which can improve the installation stability of the powder dispensing cabinet.

[0062] In this embodiment, the stop part 223 can also be set to fit against the side of the powder dispensing cabinet near the converging pipe 3, and / or, a screw structure can be set between the stop part 223 and the powder dispensing cabinet for reinforcement.

[0063] In some specific embodiments, the single-cabinet support plate 221 is inclined downwards from the side facing the powder dispensing cabinet, with the same inclination angle as the powder dispensing cabinet. The stop portion 223 bends and extends from the side of the single-cabinet support plate 221 facing the powder dispensing cabinet, and fits against the side of the powder dispensing cabinet near the collecting pipe 3. That is, the inclination angle of the single-cabinet support plate 221 facing the powder dispensing cabinet determines the inclination angle of the powder dispensing cabinet during installation. When designing the single-cabinet support plate 221, it is designed according to the required installation angle of the powder dispensing cabinet to ensure its adaptability.

[0064] like Figure 1 , Figures 3 to 5 As shown, in this embodiment, the powder dispensing cabinet includes a hopper 11 and a drive module 13 installed on top of the hopper 11. The support shell 131 of the drive module 13 is configured as a cuboid structure.

[0065] Specifically, the hopper 11 includes a coaxially arranged cylindrical section 111 and a conical section 112. The conical section 112 is located at the bottom of the cylindrical section 111 and extends downward from the lower end of the cylindrical section 111. The conical section 112 and the cylindrical section 111 are integrally connected to form the hopper 11. The conical section 112 forms the bottom of the hopper 11, and the outlet of the hopper 11 is located at the bottom of the conical section 112. The outlet of the hopper 11 is a circular opening coaxial with the hopper 11. A channel assembly 12 is installed at the outlet of the hopper 11. The channel assembly 12 cooperates with the discharge rod assembly 14 to form a closed powder conveying space. The channel assembly 12 and the discharge rod assembly 14 together constitute the discharge structure.

[0066] The support shell 131 of the drive module 13 is fixed to the upper end of the cylindrical section 111 of the hopper 11. The support shell 131 includes a support top plate 1311 and a support bottom plate 1312 arranged opposite to each other, and a support side plate 1313 arranged around the support top plate 1311 and the support bottom plate 1312. The support top plate 1311, the support bottom plate 1312, and the support side plate 1313 are spliced ​​to form a closed installation chamber. The drive motor 1330 of the drive module 13 is fixed on the support top plate 1311. The drive motor 1330 is connected to the discharge rod assembly 14 and the first stirring structure 15 in the hopper 11.

[0067] In this embodiment, the inlet of the hopper 11 is located on the side wall of the hopper 11, and an upwardly inclined feeding pipe 113 is provided at the inlet of the hopper 11.

[0068] In this embodiment, the single cabinet hook 16 is disposed on the support shell 131, and the stop part 223 abuts against the support shell 131.

[0069] Specifically, such as Figure 5 As shown, the single cabinet hook 16 and the feeding pipe 113 are located on the same side of the powder dispensing cabinet, and are set on the support side plate 1313 of the support shell 131, which is located on the side of the feeding pipe 113. The single cabinet hook 16 has an assembly notch, which is fitted to the corner between the support side plate 1313 and the support top plate 1311.

[0070] In this embodiment, the single cabinet hook 16 is fixed to the support shell 131 by bolts. Specifically, one end of the single cabinet hook 16 is bolted to the support top plate 1311 of the support shell 131, and the other end of the single cabinet hook 16 is bolted to the support side plate 1313 of the support shell 131. The hook portion of the single cabinet hook 16 protrudes into the side of the support shell 131, forming a U-shaped groove with the opening facing downward, for cooperating with the hanging arm 222.

[0071] In this embodiment, two powder dispensing cabinets are positioned close to each other as a group. The cabinet support device 22 includes a pair of opposing cabinet support plates 221. Each pair of support plates 221 has a first hanging arm and a second hanging arm extending outwards, respectively. The powder dispensing cabinet is equipped with two cabinet hooks 16, which are respectively hooked onto the first and second hanging arms. The first and second hanging arms used to hang one powder dispensing cabinet are coaxially arranged, and their axes constitute the rotation axis of the powder dispensing cabinet during installation.

[0072] The space between the two opposing support plates 221 is used to accommodate the feeding pipe 113 of the powder dispensing unit, and the feeding pipe 113 is disposed between the two support plates 221.

[0073] In this embodiment, the single cabinet support plate 221 is configured as an isosceles trapezoidal structure with an upper base length greater than the lower base length. A hanging arm 222 is set at each of the two upper base corners near the single cabinet support plate 221. The two powder dispensing single cabinets in the same group are hung on the two opposite single cabinet support plates 221.

[0074] The stop portion 223 extends outward from the side of the single cabinet support plate 221 facing the powder dispensing cabinet, bending towards the outside of the single cabinet support plate 221. The side of the stop portion 223 facing the powder dispensing cabinet is coplanar with the side of the single cabinet support plate 221 facing the powder dispensing cabinet. The support side plate 1313 below the single cabinet hook 16 is in contact with the side of the single cabinet support plate 221 and the support plate. In some possible embodiments, the stop portion 223 and the support side plate 1313 are fixedly connected by bolts.

[0075] Preferably, in this embodiment, the end of the mounting arm 222 away from the single cabinet support plate 221 is provided with a radial protrusion extending outward along the radial direction of the mounting arm 222. The distance between the radial protrusion and the single cabinet support plate 221 is greater than or equal to the thickness of the single cabinet hook 16. The radial protrusion further improves the limiting effect on the single cabinet hook 16 and enhances the installation stability of the powder dispensing cabinet.

[0076] Preferably, in this embodiment, the distance between the radial protrusion and the single cabinet support plate 221 is equal to the thickness of the single cabinet hook 16, and the distance between the two single cabinet hooks 16 is equal to the distance between the outer sides of the two single cabinet support plates 221. The "outer side of the single cabinet support plate 221" specifically refers to the side of the single cabinet support plate 221 that is far apart from each other, that is, the side on which the hanging arm 222 is provided on the single cabinet support plate 221.

[0077] In this embodiment, the inlet of the silo 11 is provided on the wall of the cylindrical section 111, and the feeding pipe 113 includes a first feeding pipe section 1131 and a second feeding pipe section 1132 arranged sequentially in a direction away from the silo 11. The second feeding pipe 113 bends and extends relative to the first feeding pipe section 1131 toward the side away from the outlet of the silo 11.

[0078] Preferably, the sidewall of the first feeding pipe section 1131 away from the outlet of the hopper 11 extends radially from the upper edge of the inlet of the hopper 11. The sidewall of the first feeding pipe section 1131 near the outlet of the hopper 11 extends obliquely from the lower edge of the inlet of the hopper 11 in a direction away from the outlet of the hopper 11, so that the end of the first feeding pipe 113 forms an oblique opening. The second feeding pipe section 1132 extends obliquely from the oblique opening in a direction away from the outlet of the hopper 11. The extension direction of the second feeding pipe section 1132 forms an acute angle with the axis of the hopper 11.

[0079] In this embodiment, the angle between the second feeding pipe section 1132 and the axis of the hopper 11 is less than or equal to the angle between the powder dispensing cabinet and the vertical direction.

[0080] Preferably, the second feeding pipe section 1132 includes a first sidewall and a second sidewall disposed opposite to each other. The first sidewall is connected to the sidewall of the first feeding pipe section 1131 away from the outlet of the hopper 11, and the second sidewall is connected to the sidewall of the first feeding pipe section 1131 near the outlet of the hopper 11.

[0081] like Figure 1 and Figure 5 As shown, the angle between the second sidewall and the axis of the hopper 11 is equal to the angle between the powder dispensing cabinet and the vertical direction. After the powder dispensing cabinet is installed, the second sidewall is vertically positioned. The first sidewall extends obliquely towards the axis of the powder dispensing cabinet relative to the second sidewall, along the extension direction away from the outlet of the hopper 11. Preferably, the first sidewall is perpendicular to the sidewall of the first feeding pipe section 1131 away from the outlet of the hopper 11.

[0082] On the first feeding pipe section 1131, two side walls parallel to the axis of the powder dispensing cabinet are connected between the side wall of the first feeding pipe section 1131 away from the outlet of the silo 11 and the side wall of the first feeding pipe section 1131 near the outlet of the silo 11. The distance between the outer sides of the two side walls on the first feeding pipe section 1131 parallel to the axis of the powder dispensing cabinet is less than or equal to the distance between the two cabinet support plates 221.

[0083] On the second feeding pipe section 1132, the two side walls parallel to the axis of the powder dispensing cabinet are the third side wall and the fourth side wall. The third side wall and the fourth side wall are connected between the first side wall and the second side wall. The distance between the outer sides of the third side wall and the fourth side wall is less than or equal to the distance between the two cabinet support plates 221.

[0084] In this embodiment, after the powder is added from the inlet of the feeding pipe 113, it is gathered to the inclined opening of the first feeding pipe 113 through the second feeding pipe section 1132, and then enters the silo 11 through the first feeding pipe section 1131.

[0085] A sealing cap 1133 is provided at the inlet of the feeding pipe 113. The sealing cap 1133 is at least partially inserted into the feeding pipe 113 and a sealing ring is provided between the sealing cap 113 and the inner wall of the feeding pipe 113.

[0086] In this embodiment, after the sealing cover 1133 is fastened, it elastically abuts against the inner sheet metal wall of the feeding pipe 113 through the sealing ring, sealing the gap between the sealing cover 1133 and the inner wall of the feeding pipe 113. The sealing cover 1133 ensures a sealing effect on the feeding pipe 113, relatively isolating the internal environment of the silo 11 from the outside world and preventing the powder in the silo 11 from becoming damp and clumping.

[0087] In this embodiment, the bottom of the single cabinet support plate 221 is provided with a support plate base 2211 that bends and extends in the horizontal direction, and the support plate base 2211 is used to be fixedly connected to the single cabinet support profile 21.

[0088] In this embodiment, the powder dispensing cabinet is also provided with a cabinet handle 17, which is located on the top of the support shell 131 of the drive module 13, making it convenient for operators to disassemble, move, and maintain the powder dispensing cabinet.

[0089] In this embodiment, the transmission module 5 of the powder dispensing equipment is used to move the medicine bag 40 along a closed-loop moving path, and the converging pipe 3 is located directly above the closed-loop moving path of the medicine bag 40. Specifically, the single-cabinet support profile 21 extends horizontally and is located above the transmission module 5 of the powder dispensing equipment, parallel to the extension path of the transmission module 5.

[0090] A single-cabinet support plate 221 is installed on top of a single-cabinet support profile 21. The support plate base 2211 at the bottom of the single-cabinet support plate 221 is attached to the top of the single-cabinet support profile 21 and is fixedly connected by bolts. Two powder dispensing single cabinets in the same group are hung on the hanging arms 222 of the single-cabinet support plate 221 from the left and right sides of the single-cabinet support profile 21.

[0091] In this embodiment, the collecting pipe 3 is fixed below the single cabinet support profile 21. When the medicine bag holding mechanism 4 moves to the receiving point, the opening of the medicine bag 40 corresponds to the outlet of the collecting pipe 3.

[0092] In this embodiment, the bottom of the single cabinet support profile 21 is provided with a downwardly extending pipe support arm 211, and the converging pipe 3 is installed directly below the single cabinet support profile 21 through the pipe support arm 211.

[0093] In this embodiment, the cross-sectional area of ​​the converging pipe 3 gradually decreases along the downward extension direction. A vibration drive component 30 is provided on the side wall of the converging pipe 3. When the vibration drive component 30 is working, it drives the converging pipe 3 to vibrate, causing all the powder remaining on the side wall of the converging pipe 3 to fall into the medicine bag 40, further improving the dispensing accuracy of the powder.

[0094] like Figure 2 As shown, in some specific embodiments, the vibration drive assembly 30 includes an eccentric motor 301 fixed to the outer wall of the converging pipe 3, and an eccentric block 302 mounted on the motor shaft of the eccentric motor 301. The eccentric motor 301 is fixed to the side wall of the converging pipe 3 by an eccentric motor bracket 303. The eccentric motor 301 drives the eccentric block 302 to rotate at high speed, generating oscillating inertia, thereby causing the side wall of the converging pipe 3 to vibrate and shake off any powder that may be attached to the side wall of the converging pipe 3.

[0095] Preferred, such as Figure 6 As shown, the extension path of the transmission module 5 is a closed loop, including a first transmission segment 511 extending along a first direction, a second transmission segment 512 located at both ends of the first transmission segment 511 and perpendicular to the first transmission segment 511, and a third transmission segment 513 disposed opposite to the first transmission segment 511. The middle part of the third transmission segment 513 protrudes towards the first transmission segment 511, and the protruding part of the third transmission segment 513 includes a first transmission segment 5131 parallel to the first transmission segment 511 and a second transmission segment 5132 parallel to the second transmission segment 512. The third transmission segment 513 also includes two third transmission segments 5133, and the second transmission segments 5132 and the second transmission segment 512 are connected through the third transmission segments 5133. Thus, the extension path of the transmission module 5 as a whole forms a U-shaped structure.

[0096] Specifically, the transmission module 5 includes a chain 51, a chain drive assembly 52, and a passive wheel 53. The chain 51 is connected end to end to form a closed loop structure. The chain drive assembly 52 is used to drive the chain 51 to move cyclically along the closed loop structure. The medicine bag holding mechanism 4 is detachably installed on the chain 51.

[0097] The chain drive assembly 52 includes a chain drive gear 521 that meshes with the chain 51 and a chain drive motor that is connected to the chain drive gear 521 and used to drive the chain drive gear 521 to rotate. By driving the chain drive gear 521 to rotate through the chain drive motor, the chain 51 can be moved, ensuring transmission accuracy.

[0098] Multiple driven pulleys 53 are disposed at different positions on the chain 51 and engage with the chain 51 respectively. Specifically, a chain drive gear 521 and multiple driven pulleys 53 are respectively disposed inside the corners of the chain 51, specifically inside the corner connecting the first transmission segment 511 and the second transmission segment 512, inside the corner connecting the second transmission segment 512 and the third transmission segment 5133, inside the corner connecting the third transmission segment 5133 and the second transmission segment 5132, and inside the corner connecting the second transmission segment 5132 and the first transmission segment 5131. The chain drive gear 521 is disposed at any corner of the chain 51.

[0099] The transmission module 5 is further provided with a chain tensioning assembly 54, which includes a chain tensioning wheel that meshes with the chain 51 and a screw-slider structure for driving the chain tensioning wheel to move. Specifically, the screw of the screw-slider structure is threadedly engaged with the frame 2, and the chain tensioning wheel is mounted on the slider of the screw-slider structure via a rotating shaft. The screw-slider structure is used to drive the chain tensioning wheel to move in a direction perpendicular to the extension path of the chain 51, thereby tensioning the chain 51 and ensuring the meshing effect between the chain 51 and the chain drive gear 521 and the driven wheel 53.

[0100] Preferably, two chain tensioning components 54 are provided, and the two chain tensioning components 54 correspond to the middle of the two third transmission segments 5133 respectively. The powder dispensing cabinet is located above the first transmission segment 511, the second transmission segment 512, the first transmission segment 5131, and the second transmission segment 5132, but not above the third transmission segment 5133.

[0101] Preferably, multiple medicine bag holding mechanisms 4 are evenly arranged on the chain 51, the interval between two adjacent medicine bag holding mechanisms 4 is the same as the interval between two adjacent converging pipes 3, the number of medicine bag holding mechanisms 4 is greater than the number of medicine receiving points, and when the medicine bag holding mechanism 4 moves to the medicine receiving point, a corresponding medicine bag holding mechanism 4 is provided below each converging pipe 3.

[0102] In this embodiment, the chain 51 includes multiple chain segments that are hinged together in sequence. The chain segments used to install the medicine bag holding mechanism 4 are provided with an upwardly bent and extended medicine bag holding mechanism mounting plate 55. The medicine bag holding mechanism 4 is installed on the medicine bag holding mechanism mounting plate 55.

[0103] In this embodiment, the medicine bag holding mechanism 4 is installed on the outside of the chain 51. One side of the medicine bag holding mechanism 4 is fixedly connected to the medicine bag holding mechanism mounting plate 55, and the other side of the medicine bag holding mechanism 4 is equipped with a support wheel 41. The rotation axis of the support wheel 41 is perpendicular to the extension path of the transmission module 5.

[0104] In some possible embodiments, the medicine bag holding mechanism 4 is configured as a single piece, and the space for accommodating the medicine bag extends vertically through the medicine bag holding mechanism.

[0105] In some other possible embodiments, the medicine bag holding mechanism includes a fixed body and a movable body, which are joined together to form a space for accommodating the medicine bag. This space extends vertically through the medicine bag holding mechanism. Specifically, the fixed body has a first curved groove, and the movable body has a second curved groove. The first and second curved grooves are positioned opposite each other, and their joining together forms the space for accommodating the medicine bag.

[0106] In this embodiment, the fixed body is fixedly connected to the transmission module, the movable body is foldably mounted on the fixed body, and the support wheel is mounted on the fixed body.

[0107] The outer side of the transmission module 5 is provided with a support rail 50. The extension path of the support rail 50 is a ring parallel to the extension path of the transmission module 5. The support wheel 41 abuts against the support rail 50 and rolls along the support rail 50, so that the medicine bag holding mechanism 4 is always in a horizontal state.

[0108] In this embodiment, the powder dispensing equipment is specifically configured with a bag-feeding station, a dispensing station, a top-sealing station, and a bag-dropping station. The powder dispensing cabinet is located within the dispensing station area, and the receiving point at the bottom of the converging pipe 3 constitutes the dispensing station.

[0109] When the medicine bag holding mechanism 4 moves to the bag feeding station, the medicine bag 40 enters the medicine bag holding mechanism 4 from the bottom. The medicine bag holding mechanism 4 squeezes the two sides of the medicine bag 40, opening the top opening of the medicine bag 40. After entering, the mouth of the medicine bag 40 is open. When the medicine bag holding mechanism 4 moves to the dispensing station, the powder dispensing cabinet operates, conveying a fixed amount of powder into the medicine bag 40. When the medicine bag holding mechanism 4 moves to the top sealing station, the top sealing device seals the top opening of the medicine bag 40. When the medicine bag holding mechanism 4 moves to the bag dropping station, the medicine bag 40 detaches from the bottom of the medicine bag holding mechanism 4.

[0110] The transmission module 5 and the support rail 50 are spaced apart, and the gap between the transmission module 5 and the support rail 50 corresponds to the space in the medicine bag holding mechanism 4 for accommodating the packaging bag. In this embodiment, the gap between the edge of the support rail 50 near the transmission module 5 and the transmission module 5 forms a channel for the medicine bag 40 to enter and exit the medicine bag holding mechanism 4. The medicine bag 40 of the powder dispensing device can smoothly enter the space for accommodating the packaging bag from the bottom of the medicine bag holding mechanism 4, and the sealed medicine bag 40 can smoothly fall from the space for accommodating the packaging bag.

[0111] In this embodiment, the transmission module 5 is mounted on the frame 2. Specifically, the frame 2 includes a chain support profile 23, a chain guide rail 231 is provided on the top of the chain support profile 23, the chain 51 is at least partially accommodated in the chain guide rail 231, the chain piece at the top of the chain 51 is disposed outside the chain guide rail 231, and the medicine bag holding mechanism mounting plate 55 is disposed on the chain piece at the top of the chain 51. The support rail 50 is fixed to the chain support profile 51.

[0112] In this embodiment, the powder dispensing equipment is equipped with a photoelectric position detection component. The position of the medicine bag holding mechanism 4 is obtained through the photoelectric position detection component, so that the medicine bag holding mechanism 4 stops at the medicine receiving point to complete the medicine receiving.

[0113] Specifically, the photoelectric position detection component includes a photoelectric position sensor mounted on the frame 2 and a baffle mounted on the medicine bag holding mechanism. The photoelectric position sensor is communicatively connected to the chain drive motor. When the baffle corresponds to the photoelectric position sensor, the chain drive motor stops running. At this time, the powder dispensing cabinet operates and outputs a set weight of powder. Preferably, during the operation of the powder dispensing cabinet, the eccentric motor 301 of the vibration drive component 30 operates synchronously to ensure that all the powder falling into the collecting pipe 3 falls into the medicine bag 40.

[0114] Preferably, in this embodiment, the photoelectric position detection component is provided in at least two sets to ensure detection accuracy.

[0115] The following is a description of the specific structure of the powder dispensing cabinet.

[0116] like Figures 7 to 12 As shown, the drive module 13 includes a first drive shaft 133, a second drive shaft 134, and a planetary gear set. The planetary gear set is disposed within the support housing 131 and configured to cause the first drive shaft 133 and the second drive shaft 134 to rotate in opposite directions and at different speeds. The first drive shaft 133 and the second drive shaft 134 are coaxial with the hopper 11. The first drive shaft 133 is driven by the discharge rod assembly 14, and the second drive shaft 134 is driven by the first stirring structure 15 within the hopper 11. The rotational speed of the second drive shaft 134 is lower than that of the first drive shaft 133, balancing stirring effect and discharge accuracy.

[0117] like Figure 10 and Figure 11 As shown, the discharge rod assembly 14 includes a discharge screw 141 that is connected to the first drive shaft 133, and a second stirring structure 142 sleeved on the discharge screw 141. The second stirring structure 142 is fixed on the discharge screw 141 and rotates synchronously with the discharge screw 141.

[0118] Specifically, a channel assembly 12 is installed at the outlet of the hopper 11. The channel assembly 12 is coaxial with the hopper 11. The channel assembly 12 is used to cooperate with the discharge rod assembly 14 to form a closed powder conveying space. The channel assembly 12 and the discharge rod assembly 14 together constitute the discharge structure.

[0119] In this embodiment, the channel assembly 12 includes a converging hole 121 and a conveying hole 122 arranged sequentially. The inner wall of the converging hole 121 is smoothly connected to the inner wall of the conical section 112 of the hopper 11. The conveying hole 122 extends from the lower end of the converging hole 121 with the same diameter. The converging hole 121 is used to introduce powder into the conveying hole 122. The conveying hole 122 cooperates with the part of the discharge screw 141 that is provided with metering teeth, so that the powder is pushed out quantitatively by the metering teeth under the rotation of the discharge screw 141.

[0120] Preferably, a dispensing tablet assembly 120 is provided at the outlet of the channel assembly 12. The dispensing tablet assembly 120 includes a dispensing tablet mounting component 1201 and a dispensing tablet body 1202. The dispensing tablet mounting component 1201 is detachably connected to the channel assembly 12. The dispensing tablet mounting component 1201 has an opening corresponding to the outlet of the channel assembly 12. The dispensing tablet body 1202 is sandwiched between the dispensing tablet mounting component 1201 and the channel assembly 12. The dispensing tablet body 1202 has a through hole for dispersing the powder. Thus, when the powder is discharged, the dispensing tablet assembly 120 can further disperse the powder squeezed by the metering teeth of the discharge screw 141 into powder before discharge, avoiding powder clumping and falling, and improving the accuracy of dispensing.

[0121] Preferably, when the powder dispensing cabinet is installed on the rack 2, the lower end of the channel assembly 12 extends at least partially into the inlet of the converging pipe 3 to ensure that all the powder output from the powder dispensing cabinet falls into the converging pipe 3.

[0122] In this embodiment, during installation, the powder dispensing unit is first installed on the rack, and then the converging pipe is installed to avoid interference between the channel components and the converging pipe. Alternatively, when disassembling or assembling a single powder dispensing rail, the powder dispensing unit is moved along the axial extension direction of the powder dispensing unit to avoid interference between the channel components and the converging pipe.

[0123] The first stirring structure 15 is provided with at least two evenly arranged along the circumference of the hopper 11, including a connecting part 151 and a wall scraping part 152. The first end of the connecting part 151 is used to connect to the second drive shaft 134, the second end of the connecting part 151 extends toward the hopper wall of the hopper 11, and the wall scraping part 152 is provided at the second end of the connecting part 151 and fits against at least a part of the hopper wall of the hopper 11.

[0124] Preferably, an adjusting base plate 1501 is fixed on the second drive shaft 134. The adjusting base plate 1501 is sleeved on the outer periphery of the first drive shaft 133 and fixed to the lower end face of the second drive shaft 134 by bolts. The adjusting base plate 1501 extends radially along the hopper 11. A connecting plate 1511 is provided at the first end of the connecting part 151. The connecting plate 1511 fits against the adjusting base plate 1501 and is fixedly connected to the adjusting base plate by bolts. The installation position of the connecting plate 1511 on the adjusting base plate 1501 can be adjusted radially along the hopper 11 to adapt to hoppers 11 with different inner diameters.

[0125] A material level detection module 18 is provided on the wall of the silo 11, and a brush 1502 is installed on the first stirring structure 15. The brush 1502 is used to clean the detection surface of the material level detection module 18.

[0126] Specifically, the scraping section 152 includes a main body section 1521 that fits against the wall of the cylindrical section 111, and an extension section 1522 that extends obliquely from the lower end of the main body section 1521 toward the axis of the hopper 11. The angle between the extension section 1522 and the axis of the hopper 11 is greater than half of the cone angle of the conical section 112. A brush 1502 is installed at the end of the extension section 1522, so that there is sufficient space between the handle of the brush 1502 and the wall of the conical section 112 to arrange the bristles.

[0127] Preferably, the lower end of the main body segment 1521 is flush with the lower end of the cylindrical segment 111.

[0128] The second stirring structure 142 includes a first stirring section 1421, a second stirring section 1422 and a third stirring section 1423 arranged sequentially along the direction close to the outlet of the hopper 11.

[0129] The first stirring unit 1421 includes a first bushing 14211 for fixed connection with the discharge screw 141, and a first stirring rod 14212 fixed on the first bushing 14211. The first stirring rod 14212 includes a plurality of rods evenly arranged along the circumference of the first bushing 14211. The first stirring rod 14212 includes a first section parallel to the axis of the discharge screw 141, and a second section extending obliquely from the upper end of the first section away from the axis of the discharge screw 141. The first section of the first stirring rod 14212 is fixedly connected to the outer peripheral wall of the first bushing 14211.

[0130] The second stirring part 1422 includes a second bushing 14221 for fixed connection with the discharge screw 141, and a second stirring rod 14222 fixed on the second bushing 14221. The second stirring rod 14222 includes a plurality of rods evenly arranged along the circumference of the second bushing 14221. The second stirring rod 14222 includes a first section parallel to the axis of the discharge screw 141, and a second section extending obliquely from the lower end of the first section away from the axis of the discharge screw 141. The first section of the second stirring rod 14222 is fixedly connected to the outer peripheral wall of the second bushing 14221.

[0131] The third stirring section 1423 includes a third bushing 14231 for fixed connection with the discharge screw 141, and a third stirring rod 14232 fixed on the third bushing 14231. The third stirring rod 14232 includes a plurality of rods evenly arranged circumferentially along the third bushing 14231. The third stirring rod 14232 includes a first section parallel to the axis of the discharge screw 141, a curved section extending from the upper end of the first section away from the axis of the discharge screw 141, and a second section extending downward from the end of the curved section. The bending angle of the curved section of the third stirring rod 14232 is greater than 180°, and the curved section first bends away from the axis of the discharge screw 141 from the upper end of the first section of the third stirring rod 14232, gradually bends to extend towards the axis of the discharge screw 141, and the second section of the third stirring rod 14232 extends downward from the end of the curved section and inclined towards the axis of the discharge screw 141.

[0132] Preferably, the second section of the first stirring rod 14212 extends above the brush 1502, the upper end of the second section of the first stirring rod 14212 corresponds to the connection between the cylindrical section 111 and the conical section 112, and the distance between the upper end of the first stirring rod 14212 and the axis of the discharge screw 141 is less than the distance between the main body section 1521 of the scraper 152 and the axis of the hopper 11.

[0133] The second section of the second stirring rod 14222 extends to the bottom of the hopper 11, with the lower end of the second section corresponding to the middle of the conical section 112, and the lower end of the second section of the second stirring rod 14222 being spaced apart from the hopper wall of the conical section 112. Preferably, the angle between the second section of the first stirring rod 14212 and the discharge screw 141 is greater than the angle between the second section of the second stirring rod 14222 and the discharge screw 141.

[0134] In the circumferential direction of the discharge screw 141, the third stirring rod 14232 and the second stirring rod 14222 are staggered, and the installation position of the third bushing 14231 corresponds to the middle of the second section of the second stirring rod 14222. The included angle between the second section of the third stirring rod 14232 and the axis of the discharge screw 141 is greater than or equal to half the cone angle of the conical section 112.

[0135] The first stirring section 1421 is mainly used to stir the powder at the top of the conical section 112, the third stirring section 1423 is mainly used to stir the powder at the bottom of the conical section 112, and the second stirring section 1422 is mainly used to stir the powder in the middle of the conical section 112. Based on this, the extension section 1522 of the scraper section 152 and the brush 1502 on the extension section 1522 are arranged within the annular space formed by the annular path of the first stirring rod 14212, the annular path of the second stirring rod 14222, and the wall of the conical section 112. Furthermore, the first stirring section 1421 and the second stirring section 1422 rotate in opposite directions and at different speeds, thereby improving the overall stirring effect of the powder in the hopper 11, dispersing the powder, and improving the accuracy of powder preparation.

[0136] In some specific embodiments, the first bushing 14211, the second bushing 14221, and the third bushing 14231 are respectively connected to the discharge screw 141 by a tightening bolt. The tightening bolt passes radially through the sidewalls of the first bushing 14211, the second bushing 14221, and the third bushing 14231 and abuts against the outer peripheral wall of the discharge screw 141.

[0137] like Figure 8 and Figure 9 As shown, in this embodiment, the planetary gear set includes a central gear 1321, planetary gears 1322, a ring gear 1324, and a planetary gear carrier 1323. The central gear 1321 is located at the center of the planetary gear set. The shafts of the planetary gears 1322 are mounted on the planetary gear carrier 1323. At least two planetary gears 1322 are provided, evenly distributed outside the central gear 1321, and mesh with the central gear 1321 respectively. The ring gear 1324 is a ring-shaped gear with teeth all over its inner side. The ring gear 1324 surrounds the outer side of the planetary gears and meshes with them. Preferably, three planetary gears 1322 are provided, evenly arranged along the circumference of the planetary gear set.

[0138] The planetary gear carrier 1323 of the planetary gear set is circumferentially limited to the hopper 11, and the first drive shaft 133 and the second drive shaft 134 are respectively connected to the central gear 1321 and the gear ring 1324 of the planetary gear set.

[0139] Specifically, the planetary gear carrier 1323 includes a planetary gear carrier top plate 13231 and a planetary gear carrier bottom plate 13232 connected to each other, and the planetary gear 1322 is mounted between the planetary gear carrier top plate 13231 and the planetary gear carrier bottom plate 13232 via a rotating shaft. The planetary gear carrier top plate 13231 is fixed to the support top plate 1311 of the support shell 131 by bolts. The planetary gear carrier top plate 13231 and the planetary gear carrier bottom plate 13232 are fixedly connected by bolts. There is a gap between the planetary gear carrier top plate 13231 and the planetary gear carrier bottom plate 13232 that matches the axial dimension of the planetary gear 1322. One end of the rotating shaft of the planetary gear 1322 is mounted on the planetary gear carrier top plate 13231 by a bearing, and the other end of the rotating shaft of the planetary gear 1322 is mounted on the planetary gear carrier bottom plate 13232 by a bearing. The planetary gear 1322 is fixed on the rotating shaft. The planetary gear 1322 extends at least partially to the outer periphery of the planetary gear carrier 1323 and meshes with the gear ring 1324.

[0140] In this embodiment, the bolts used to connect the top plate 13231 and the bottom plate 13232 of the planetary gear carrier avoid each other with the planetary gear 1322 in the circumferential direction of the planetary gear set.

[0141] The first drive shaft 133 penetrates vertically through the support shell 131, and the central gear 1321 is fixed on the first drive shaft 133. The central gear 1321 meshes with the planetary gear 1322.

[0142] A bearing seat 135 is fixed inside the support base plate 1312 of the support housing 131. The second drive shaft 134 is mounted on the bearing seat 135 via a bearing and extends at least partially to the outside of the support base plate 1312. The second drive shaft 134 is coaxially arranged with the first drive shaft 133, and the second drive shaft 134 is sleeved on the outer circumference of the first drive shaft 133 and fixedly connected to the gear ring 1324.

[0143] A connector 13240 is provided between the second drive shaft 134 and the gear ring 1324. The connector 13240 includes a radial extension portion extending radially along the planetary gear set and an axial extension portion extending axially along the planetary gear set. The radial extension portion is fixedly connected to the second drive shaft 134. The outer diameter of the radial extension portion is larger than the outer diameter of the planetary gear carrier 1323. The axial extension portion extends vertically from the outer edge of the radial extension portion and protrudes in a direction away from the support base plate 1312, and is fixedly connected to the gear ring 1324. That is, the axial extension portion is sleeved on the outer periphery of the planetary gear carrier 1323.

[0144] The second drive shaft 134, connecting member 13240, and gear ring 1324 are integrally mounted inside the support housing 131 via a bearing seat 135 on the support base plate 1312, and are axially limited in fit with the support housing 131. Preferably, the connecting member 13240 is a single piece. The end face of the axially extended portion is in contact with the end face of the gear ring 1324, and the connecting member 13240 and the gear ring 1324 are fixedly connected by bolts. The bottom of the radially extended portion is in contact with the top surface of the second drive shaft 134, and the connecting member 13240 and the second drive shaft 134 are fixedly connected by bolts.

[0145] The power source of the drive module 13 is the drive motor 1330. The drive motor 1330 is fixed on the support top plate 1311. The motor shaft of the drive motor 1330 passes vertically through the support shell 131. The central gear 1321 is fixed on the motor shaft. The motor shaft constitutes the first drive shaft 133.

[0146] In this embodiment, the upper end of the cylindrical section 111 of the hopper 11 is open, and the supporting base plate 1312 of the supporting shell 131 constitutes the cover of the hopper 11. Preferably, the bottom of the supporting base plate 1312 is provided with a protrusion that matches the inner diameter of the upper opening of the cylindrical section 111, which is used to improve the positioning effect between the supporting base plate 1312 and the hopper 11.

[0147] In this embodiment, the precision control component 136 includes an encoder disk 1361 and a U-shaped photoelectric switch. The encoder disk 1361 is fixed to the radial extension of the connector 13240 by bolts. The encoder disk 1361 is coaxially arranged with the planetary gear set. The U-shaped photoelectric switch is disposed on one side of the encoder disk 1361 and fixed to the support side plate 1313 of the support shell 131. The encoder disk 1361 is evenly provided with multiple detection holes along its circumference. The encoder disk 1361 is used to be driven to rotate synchronously by the gear ring 1324, and during rotation, the multiple detection holes sequentially pass through the detection positions of the U-shaped photoelectric switch. Thus, the rotation status of the second drive shaft 134 can be obtained through the precision control component 136. At the same time, the rotation angle of the first drive shaft 133 can be calculated based on the transmission ratio between the gear ring 1324 and the central gear 1321.

[0148] Preferably, in this embodiment, the discharge screw 141 is detachably connected to the first drive shaft 133 via a universal coupling 140. The discharge screw 141 is configured with various replaceable channel assemblies 12 adapted to the metering section of the discharge screw 141 with metering teeth, which are interchangeably installed at the outlet of the hopper 11. Specifically, for discharge screws 141 with metering sections of different outer diameters and lengths, corresponding channel assemblies 12 are provided. Thus, discharge screws with different pitches and outer diameters can be replaced according to the density, particle size, and flowability of the powder, allowing the equipment to adapt to the dispensing needs of different types of powders, improving the equipment's versatility while ensuring dispensing accuracy.

[0149] Preferably, in this embodiment, the outer diameter of the metering section of the discharge screw 141 is inversely proportional to the density of the powder contained in the powder dispensing cabinet. That is, the higher the powder density contained in the powder dispensing cabinet, the smaller the outer diameter of the metering section of the discharge screw 141 configured for that powder dispensing cabinet; conversely, the lower the powder density contained in the powder dispensing cabinet, the larger the outer diameter of the metering section of the discharge screw 141 configured for that powder dispensing cabinet. This ensures that the dispensing time of each powder dispensing cabinet is similar, improving the overall dispensing efficiency of the powder dispensing equipment.

[0150] Preferably, the dispensing tablet body 1202 is configured with multiple replaceable types, and the through-hole shapes on the multiple dispensing tablet bodies 1202 are different. By configuring the dispensing tablet body 1202 of the dispensing tablet assembly 120 with multiple replaceable types, different dispensing tablet bodies 1202 can be replaced according to the density, particle size and flowability of the powder, so as to be suitable for more small-dose powder dispensing, further ensuring the working reliability of the dispensing tablet assembly 120, and expanding the applicability of the powder dispensing cabinet while ensuring dispensing accuracy.

[0151] Specifically, a support ring 114 is provided at the outlet of the hopper 11, and the channel assembly 12 is threadedly connected to the support ring 114.

[0152] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A powder dispensing device, comprising: The rack (2) is equipped with multiple powder dispensing cabinets; The collection pipe (3) is located below the outlet of the powder dispensing cabinet; The feature is that at least two powder dispensing cabinets are close to each other as a group, and a converging pipe (3) is set on the frame (2) corresponding to each group of powder dispensing cabinets; the powder dispensing cabinets are set at an angle from top to bottom, and the outlets of the powder dispensing cabinets in the same group are close to each other; A single cabinet hook (16) is provided on the side of the powder dispensing cabinet near the collection pipe (3); a single cabinet support device (22) is provided on the frame (2), and the single cabinet support device (22) includes: The single cabinet support plate (221) extends vertically; The mounting arm (222) protrudes vertically from the side of the single cabinet support plate (221) and is used for the single cabinet hook (16) to be attached. Stop (223); The single cabinet support plate (221) is inclined from top to bottom on the side facing the powder dispensing cabinet, with the same inclination angle as the powder dispensing cabinet; The stop (223) is located below the hanging arm (222), and extends from the side of the single cabinet support plate (221) facing the powder dispensing cabinet, and fits against the side of the powder dispensing cabinet near the converging pipe (3).

2. The powder dispensing equipment according to claim 1, characterized in that, The single cabinet support plate (221) includes two that are arranged opposite to each other. The two single cabinet support plates (221) are respectively provided with a first hanging arm and a second hanging arm. The powder dispensing single cabinet is provided with two single cabinet hooks (16), which are respectively hung on the first hanging arm and the second hanging arm.

3. The powder dispensing equipment according to claim 2, characterized in that, Two powder dispensing cabinets are placed close to each other as a group; the two powder dispensing cabinets in the same group are hung on two opposite cabinet support plates (221); A feeding pipe (113) connected to the silo (11) is provided on the silo wall near the converging pipe (3) of the powder dispensing cabinet; the first hanging arm and the second hanging arm are respectively located on the outside of the two cabinet support plates (221), and the feeding pipe (113) is located between the two cabinet support plates (221).

4. The powder dispensing equipment according to claim 3, characterized in that, The feeding pipe (113) includes a first feeding pipe section (1131) and a second feeding pipe section (1132) arranged sequentially in a direction away from the silo (11). The second feeding pipe section (1132) bends and extends relative to the first feeding pipe section (1131) towards the outlet of the silo (11). The angle between the second feeding pipe section (1132) and the axis of the silo (11) is less than or equal to the angle between the powder dispensing cabinet and the vertical direction.

5. The powder dispensing equipment according to any one of claims 1 to 4, characterized in that, The transmission module (5) of the powder dispensing equipment is used to drive the medicine bag (40) to move along the closed-loop moving path, and the converging pipe (3) is set directly above the closed-loop moving path of the medicine bag (40). The frame (2) includes a single cabinet support profile (21) extending horizontally. The single cabinet support profile (21) is located above the transmission module (5) of the powder dispensing equipment and is parallel to the extension path of the transmission module (5). A single cabinet support plate (221) is installed on the top of the single cabinet support profile (21). A downwardly extending pipe support arm (211) is provided at the bottom of the single cabinet support profile (21). The converging pipe (3) is installed directly below the single cabinet support profile (21) through the pipe support arm (211).

6. The powder dispensing equipment according to claim 5, characterized in that, The side of the transmission module (5) is provided with support rails (50) at intervals, and the extension path of the support rails (50) is a ring parallel to the extension path of the transmission module (5). The medicine bag holding mechanism (4) of the powder dispensing equipment is installed on the transmission module (5), and the medicine bag holding mechanism (4) is provided with a support wheel (41) that cooperates with the support rail (50); The gap between the transmission module (5) and the support rail (50) corresponds to the space of the medicine bag holding mechanism (4) for accommodating the packaging bag.

7. The powder dispensing equipment according to any one of claims 1 to 4, characterized in that, A vibration drive assembly (30) is provided on the side wall of the converging pipe (3); The vibration drive assembly (30) includes an eccentric motor (301) fixed on the outer wall of the converging pipe (3) and an eccentric block (302) mounted on the motor shaft of the eccentric motor (301).

Images