Medicine weighing cylinder and weighing device

Abstract

The utility model discloses a medicine weighing cylinder and a weighing device.The medicine weighing cylinder comprises a cylinder body and a grinding assembly, the cylinder body is provided with a feeding port and a discharging port, and the grinding assembly comprises a first driving part, a rotating shaft, a second driving part, a first cutter head and a second cutter head. According to the scheme provided by the invention, when medicines fall between the first cutter head and the second cutter head, the medicines can be ground under the action of friction force. By adjusting the distance between the second cutterhead and the first cutterhead, when the distance between the second cutterhead and the first cutterhead is large, the ground diameter particles are large, and when the distance between the second cutterhead and the first cutterhead is small, the ground diameter particles are small. Therefore, medicines can be ground into particles with different diameters according to needs so as to meet the weighing requirement, and finally, the medicines are discharged and weighed through the discharge port, so that the problems that the powder particles are too large and the powder is caked when the medicines are weighed are effectively solved.

Description

Technical Field

[0001] This application relates to the field of chemical technology, and particularly relates to a medicine weighing cylinder and a weighing device. Background Art

[0002] A large amount of weighing of solid chemical medicines is involved in chemical synthesis.

[0003] In the related art, when using automated equipment for medicine weighing, problems such as too large medicine powder particles and powder caking will be encountered, making it difficult to perform micro weighing or causing discharge blockage. Summary of the Utility Model

[0004] In view of the above problems, this application provides a medicine weighing cylinder and a weighing device, which can solve the problems of too large medicine powder particles and powder caking during medicine weighing.

[0005] To solve the above technical problems, in a first aspect, this application proposes a medicine weighing cylinder, including:

[0006] A cylinder body, on which a feeding port and a discharging port are provided;

[0007] A grinding assembly, which includes a first driving member, a rotating shaft, a second driving member, a first cutter disc and a second cutter disc;

[0008] The first cutter disc is fixed inside the cylinder body, the second cutter disc is located inside the cylinder body, and the second cutter disc is located on the side of the first cutter disc facing the discharging port;

[0009] The first driving member is connected to the second cutter disc through the rotating shaft and is used to drive the second cutter disc to approach or move away from the first cutter disc;

[0010] The second driving member is connected to the rotating shaft and is used to drive the rotating shaft to rotate around the axial direction.

[0011] In the technical solution of the embodiment of this application, after the medicine is put into the cylinder body from the feeding port, the first driving member drives the second cutter disc to approach or move away from the first cutter disc to adjust the distance between the second cutter disc and the first cutter disc, and then the second driving member drives the second cutter disc to rotate through the rotating shaft. When the medicine falls between the first cutter disc and the second cutter disc, under the action of friction, the medicine can be ground. By adjusting the distance between the second cutter disc and the first cutter disc, when the distance between the second cutter disc and the first cutter disc is larger, the ground diameter particles are larger, and when the distance between the second cutter disc and the first cutter disc is smaller, the ground diameter particles are smaller. Thus, the medicine can be ground into particles with different diameters according to needs to meet the weighing requirements, and finally discharged through the discharging port for weighing, thereby effectively solving the problems of too large powder particles and powder caking during medicine weighing.

[0012] In some embodiments, the first cutter head is of an annular structure, and the second cutter head is at least partially located within the annular structure;

[0013] The size of the first end of the second cutter head away from the discharge port is smaller than the size of the second end of the second cutter head facing the discharge port.

[0014] In some embodiments, the size of the opening on the first side of the first cutter head away from the discharge port is smaller than the size of the opening on the second side of the first cutter head facing the discharge port;

[0015] The size of the second end is smaller than the size of the opening on the second side, and the size of the second end is larger than the size of the opening on the first side. In this way, it is possible to prevent the second cutter head from passing through the first cutter head when moving towards the first cutter head.

[0016] In some embodiments, a first protrusion is provided on the inner wall of the annular structure, and a second protrusion is provided on the side wall of the second cutter head. In this way, when the medicine falls between the corresponding inner wall and the side wall, the medicine can be quickly ground under the frictional action of the first protrusion and the second protrusion.

[0017] In some embodiments, the medicine weighing cylinder further includes a retaining ring, the retaining ring is fixed to the inner wall of the cylinder body, and the annular structure is fixed to the retaining ring. In this way, it is convenient to fix the annular structure inside the cylinder body.

[0018] In some embodiments, the rotating shaft is detachably connected to the second cutter head. In this way, when the second cutter head is damaged, it is convenient to disassemble and replace.

[0019] In some embodiments, the medicine weighing cylinder further includes an electrostatic removal module, and the electrostatic removal module is provided at one end of the cylinder body facing the discharge port. In this way, the static electricity carried by the ground medicine powder can be removed by the electrostatic removal module, and the medicine powder can be prevented from adsorbing on the inner wall of the cylinder body.

[0020] In some embodiments, an installation opening is provided on the side wall of the cylinder body, and the electrostatic removal module is provided in the installation opening. In this way, it is convenient to install the electrostatic removal module on the cylinder body.

[0021] In some embodiments, an extension section is provided on the side wall of the cylinder body, the extension section is communicated with the cylinder body, and the feeding port is provided at one end of the extension section away from the cylinder body; the included angle between the extension section and the axial direction of the cylinder body is less than 90°. In this way, when the medicine is injected into the cylinder body from the feeding port, the medicine can be prevented from directly hitting the first cutter head and the second cutter head under the buffering action of the extension section.

[0022] In a second aspect, the present application provides a weighing device, including a medicine weighing cylinder as described in any one of the embodiments of the present application.

[0023] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically gives the specific implementation manners of the present application. Description of the Drawings

[0024] By reading the following detailed description of the embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the embodiments and are not considered as a limitation to the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0025] Figure 1 is a schematic structural diagram of a medicine weighing cylinder provided by some embodiments of the present application;

[0026] Figure 2 is Figure 1 the internal structural diagram of;

[0027] Figure 3 is a schematic diagram of a grinding assembly provided by some embodiments of the present application;

[0028] Figure 4 is a schematic diagram of a first cutter head and a second cutter head provided by some embodiments of the present application;

[0029] Figure 5 is Figure 4 the sectional view of;

[0030] Figure 6 is a schematic diagram of the internal structure of a cylinder body provided by some embodiments of the present application;

[0031] Figure 7 is a schematic diagram of the cylinder body structure provided by some embodiments of the present application.

[0032] The reference numerals in the specific implementation manners are as follows:

[0033] 11. Cylinder body; 111. Feeding port; 112. Discharging port; 113. Installation port; 114. Extension section;

[0034] 12. Grinding assembly; 121. First driving member; 122. Rotating shaft; 123. Second driving member; 124. First cutter head; 1241. First protruding portion; 1242. First side; 1243. Second side; 125. Second cutter head; 1251. Second protruding portion; 1252. First end; 1253. Second end; 126. Roller spline;

[0035] 13. Electrostatic removal module;

[0036] 14. Retaining ring. Specific embodiments

[0037] Hereinafter, embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, and therefore are only examples and cannot be used to limit the protection scope of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0039] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0040] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0041] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.

[0042] In the description of the embodiments of the present application, the term "a plurality" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0043] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present application.

[0044] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0045] In chemical synthesis, there are problems related to the weighing of a large amount of solid chemical drugs. When automatic weighing is carried out by automated equipment, problems such as too large drug powder particles and powder caking may be encountered, making it difficult to perform micro weighing or causing material discharge blockage.

[0046] In the related art, although grinding drugs with a cutter can solve the problems of too large powder particles and easy caking, it cannot change the grinding degree of the drugs according to the weighing requirements.

[0047] Based on the above considerations, in order to solve the problems of too large drug powder particles and powder caking during drug weighing, and at the same time solve the problem that the grinding degree of drugs cannot be changed according to the weighing requirements during drug weighing, a drug weighing cylinder is designed. The drug weighing cylinder includes a cylinder body and a grinding assembly. Among them, a feeding port and a discharging port are provided on the cylinder body. The grinding assembly includes a first driving member, a rotating shaft, a second driving member, a first cutter head and a second cutter head; the first cutter head is fixed inside the cylinder body, the second cutter head is located inside the cylinder body, and the second cutter head is located on the side of the first cutter head facing the discharging port; the first driving member is connected to the second cutter head through the rotating shaft and is used to drive the second cutter head to approach or move away from the first cutter head; the second driving member is connected to the rotating shaft and is used to drive the rotating shaft to rotate around the axial direction.

[0048] In the technical solution of the embodiment of the present application, after the medicine is put into the cylinder from the feeding port, the first driving member drives the second cutter disc to approach or move away from the first cutter disc to adjust the distance between the second cutter disc and the first cutter disc. Then, the second driving member drives the second cutter disc to rotate through the rotating shaft. When the medicine falls between the first cutter disc and the second cutter disc, under the action of friction, the medicine can be ground. By adjusting the distance between the second cutter disc and the first cutter disc, when the distance between the second cutter disc and the first cutter disc is large, the diameter of the ground particles is large; when the distance between the second cutter disc and the first cutter disc is small, the diameter of the ground particles is small. Thus, the medicine can be ground into particles with different diameters according to needs to meet the weighing requirements, and finally discharged through the discharge port for weighing, thereby effectively solving the problems of too large powder particles and powder caking when weighing the medicine.

[0049] According to some embodiments of the present application, Figure 1 is a schematic structural diagram of the medicine weighing cylinder of the present application, Figure 2 is Figure 1 the internal structural diagram of Figure 3 is a schematic diagram of the grinding assembly of the present application. As Figures 1-3 shown, the present application provides a medicine weighing cylinder, which includes a cylinder body 11 and a grinding assembly 12. Among them, a feeding port 111 and a discharge port 112 are provided on the cylinder body 11. The grinding assembly 12 includes a first driving member 121, a rotating shaft 122, a second driving member 123, a first cutter disc 124 and a second cutter disc 125. Among them, the first cutter disc 124 is fixed inside the cylinder body 11, the second cutter disc 125 is located inside the cylinder body 11, and the second cutter disc 125 is located on the side of the first cutter disc 124 facing the discharge port 112; the first driving member 121 is connected to the second cutter disc 125 through the rotating shaft 122 for driving the second cutter disc 125 to approach or move away from the first cutter disc 124; the second driving member 123 is connected to the rotating shaft 122 for driving the rotating shaft 122 to rotate around the axis.

[0050] Referring to Figure 1 shown, the discharge port 112 is located at the bottom of the cylinder body 11, and the feeding port 111 is located above the discharge port 112. When the medicine is injected into the cylinder body 11 from the feeding port 111, it flows out from the discharge port 112 after being ground by the grinding assembly 12.

[0051] The first cutter disc 124 in this embodiment is an overall annular structure, and the second cutter disc 125 is an overall conical structure. The first cutter disc 124 can be fixed to the inner wall of the cylinder body 11 by bolts. Referring to Figure 2 shown, at least part of the second cutter disc 125 can move into the internal annular structure of the first cutter disc 124 from bottom to top.

[0052] In this embodiment, the first driving member 121 is a telescopic motor, the second driving member 123 is a hollow motor, the rotating shaft 122 is a spline shaft as a whole. A spline shaft is connected to the output shaft of the telescopic motor through a coupling. A roller spline 126 is connected to the spline shaft, and the roller spline 126 is fixed on the hollow motor. At the same time, the spline shaft passes through the hollow motor and extends into the cylinder 11 to be connected to the second cutter head 125.

[0053] During use, the telescopic motor drives the spline shaft to rotate. Since the roller spline 126 is fixed on the hollow motor and the hollow motor is fixed on the cylinder 11, at this time, the spline shaft will move axially relative to the roller spline 126, thereby driving the second cutter head 125 to approach or move away from the first cutter head 124. After adjusting the position of the second cutter head 125 relative to the first cutter head 124, the hollow motor drives the roller spline 126 to rotate, and the roller spline 126 drives the spline shaft to rotate synchronously. At this time, the second cutter head 125 can be driven to rotate relative to the first cutter head 124. In this way, the medicine located between the second cutter head 125 and the first cutter head 124 will be ground into powder under the friction action.

[0054] By adjusting the distance between the second cutter head 125 and the first cutter head 124, when the distance between the second cutter head 125 and the first cutter head 124 is large, the diameter of the ground particles is large; when the distance between the second cutter head 125 and the first cutter head 124 is small, the diameter of the ground particles is small.

[0055] In this way, the medicine can be ground into particles with different diameters according to needs to meet the weighing requirements, and finally discharged through the discharge port 112 for weighing, thereby effectively solving the problems that the powder particles are too large and the powder caking will occur during the weighing of the medicine. At the same time, since the grinding assembly 12 can grind the medicine into particles with different diameters, in this way, the medicine can be ground according to the weighing requirements to meet the requirements of the diameter particles.

[0056] It should be noted that the structure of the above-mentioned grinding assembly is only an example. In other alternative solutions, other structures can also be adopted. For example, the grinding assembly also includes a particle size detection sensor, etc. The specific structure of the grinding assembly in this application is not particularly limited as long as the above structure can achieve the purpose of this application.

[0057] According to some embodiments of the present application, as Figure 4 and in combination with Figure 5 shown, the first cutter head 124 is of an annular structure, and at least part of the second cutter head 125 is located within the annular structure. Among them, the size of the first end 1252 of the second cutter head 125 far from the discharge port 112 is smaller than the size of the second end 1253 of the second cutter head 125 facing the discharge port 112.

[0058] Refer to Figure 5As shown, since the size of the first end 1252 of the second cutter head 125 away from the discharge port 112 is smaller than the size of the second end 1253 of the second cutter head 125 facing the discharge port 112, that is, the second cutter head 125 is a conical structure as a whole. In this way, when the second cutter head 125 moves towards the inside of the annular structure, the gap between the second cutter head 125 and the first cutter head 124 gradually decreases. When the second cutter head 125 moves away from the inside of the annular structure, the gap between the second cutter head 125 and the first cutter head 124 gradually increases.

[0059] According to some embodiments of the present application, as Figure 5 shown, the opening size of the first side 1242 of the first cutter head 124 away from the discharge port 112 is smaller than the opening size of the second side 1243 of the first cutter head 124 facing the discharge port 112;

[0060] The size of the second end 1253 is smaller than the opening size of the second side 1243, and the size of the second end 1253 is larger than the opening size of the first side 1242.

[0061] Since the size of the first end 1252 is smaller than the size of the second end 1253, and the size of the second end 1253 is smaller than the opening size of the second side 1243, in this way, the second cutter head 125 can enter the inside of the annular structure from bottom to top. At the same time, since the size of the second end 1253 is larger than the opening size of the first side 1242, in this way, it can be avoided that when the second cutter head 125 moves from bottom to top towards the first cutter head 124, the second cutter head 125 penetrates through the first cutter head 124.

[0062] According to some embodiments of the present application, as Figure 4 shown, a first convex portion 1241 is provided on the inner wall of the annular structure, and a second convex portion 1251 is provided on the side wall of the second cutter head 125.

[0063] In this embodiment, a plurality of first convex portions 1241 can be provided on the inner wall of the annular structure, and the first convex portion 1241 can be in a strip shape. Similarly, a plurality of second convex portions 1251 can be provided on the side wall of the second cutter head 125, and the second convex portion 1251 can also be in a strip shape. Specifically, it can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0064] When the medicine falls between the corresponding inner wall and the side wall, under the frictional action of the first convex portion 1241 and the second convex portion 1251, the medicine can be quickly ground.

[0065] According to some embodiments of the present application, as Figure 6 shown, the medicine weighing cylinder further includes a retaining ring 14, and the retaining ring 14 is fixed to the inner wall of the cylinder body 11, and the annular structure is fixed to the retaining ring 14.

[0066] In this embodiment, the retaining ring 14 can be connected to the inner wall of the cylinder 11 by bolts, or the retaining ring 14 and the cylinder 11 are integrally formed, and specifically can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0067] In this embodiment, the annular structure can be snap-fitted on the upper side of the retaining ring 14, and specifically can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0068] Since the inner wall of the cylinder 11 is provided with the retaining ring 14, in this way, it is convenient to fix the annular structure inside the cylinder 11.

[0069] According to some embodiments of the present application, the rotating shaft 122 is detachably connected to the second cutter head 125.

[0070] In this embodiment, the rotating shaft 122 and the second cutter head 125 can be connected by a flat key. When the second cutter head 125 is damaged, the second cutter head 125 can be quickly disassembled and replaced from the rotating shaft 122.

[0071] According to some embodiments of the present application, as Figure 1 or Figure 2 shown, the medicine weighing cylinder further includes an electrostatic removal module 13, and the electrostatic removal module 13 is arranged at one end of the cylinder 11 facing the discharge port 112.

[0072] In this embodiment, the electrostatic removal module 13 can be a high-voltage generator, an ion wind rod, etc. The electrostatic removal module 13 is not limited to an electrostatic removal module by ionization or optical means, and specifically can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0073] During use, the static electricity carried by the ground medicine powder can be removed through the electrostatic removal module 13, avoiding the adsorption of the medicine powder on the inner wall of the cylinder.

[0074] According to some embodiments of the present application, as Figure 7 shown, the side wall of the cylinder 11 is provided with an installation opening 113, and the electrostatic removal module 13 is arranged in the installation opening 113. In this way, it is convenient to install the electrostatic removal module 13 on the cylinder 11.

[0075] According to some embodiments of the present application, as Figure 1 shown, the side wall of the cylinder 11 is provided with an extension section 114, the extension section 114 is communicated with the cylinder 11, and the feeding port 111 is arranged at one end of the extension section 114 away from the cylinder 11; the included angle between the extension section 114 and the axis of the cylinder 11 is less than 90°.

[0076] In this embodiment, the included angle between the extension section 114 and the axis of the cylinder body 11 is α, where 0° < α < 90°. In this way, when the medicine is injected into the interior of the cylinder body 11 from the material injection port 111, the buffer action of the extension section 114 can prevent the medicine from directly falling onto the first cutter head 124 and the second cutter head 125.

[0077] The present application also provides a weighing device, including a medicine weighing cylinder as described in any one of the embodiments of the present application.

[0078] The specific structure of the medicine weighing cylinder in this embodiment refers to the above-mentioned embodiment. Since all the technical solutions of the above-mentioned embodiments are adopted in this weighing device, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated here one by one.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A medicine weighing cylinder, characterized in that: include: A cylinder body, wherein the cylinder body is provided with a material injection port and a material discharge port; A grinding assembly, the grinding assembly comprising a first driving member, a rotating shaft, a second driving member, a first cutter disc and a second cutter disc; The first blade disc is fixed inside the cylinder, the second blade disc is located inside the cylinder, and the second blade disc is located on a side of the first blade disc facing the discharge port; The first driving member is connected to the second cutter disc via the rotating shaft, and is used to drive the second cutter disc to approach or move away from the first cutter disc; The second driving member is connected to the rotating shaft and is used to drive the rotating shaft to rotate around an axial direction.

2. The medicine weighing cylinder according to claim 1, characterized in that: The first cutter disc is an annular structure, and the second cutter disc is at least partially located in the annular structure; A dimension of a first end of the second blade disc away from the material outlet is smaller than a dimension of a second end of the second blade disc toward the material outlet.

3. The medicine weighing cylinder according to claim 2, characterized in that: The opening size of a first side of the first blade disc away from the material outlet is smaller than the opening size of a second side of the first blade disc toward the material outlet; The second end has a size smaller than the second side opening size, and the second end has a size larger than the first side opening size.

4. The medicine weighing cylinder according to claim 2, characterized in that: The inner wall of the annular structure is provided with a first protrusion, and the side wall of the second cutter disc is provided with a second protrusion.

5. The medicine weighing cylinder according to claim 2, characterized in that: The medicine weighing cylinder further comprises a retaining ring, which is fixed to the inner wall of the cylinder body, and the annular structure is fixed to the retaining ring.

6. The medicine weighing cylinder according to claim 1, characterized in that: The rotating shaft is detachably connected to the second cutter disc.

7. The pharmaceutical weighing cylinder according to any one of claims 1 to 6, characterized in that: The medicine weighing cylinder further comprises a static electricity removal module, and the static electricity removal module is arranged at one end of the cylinder body facing the discharge port.

8. The medicine weighing cylinder according to claim 7, characterized in that: The side wall of the cylinder is provided with an installation opening, and the static electricity removal module is arranged at the installation opening.

9. The medicine weighing cylinder according to claim 1, characterized in that: An extension section is arranged on the side wall of the cylinder, the extension section is connected with the cylinder, and the injection port is arranged at one end of the extension section away from the cylinder; the angle between the extension section and the axial direction of the cylinder is less than 90°.

10. A weighing device, characterized in that: Comprising the medicine weighing cylinder as described in any one of claims 1 to 9.

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