CN108217165B - Automatic accurate material feeding unit - Google Patents
Automatic accurate material feeding unit Download PDFInfo
- Publication number
- CN108217165B CN108217165B CN201810299307.4A CN201810299307A CN108217165B CN 108217165 B CN108217165 B CN 108217165B CN 201810299307 A CN201810299307 A CN 201810299307A CN 108217165 B CN108217165 B CN 108217165B
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- Prior art keywords
- motor
- adjusting
- assembly
- piston rod
- piston
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- 239000000463 material Substances 0.000 title claims abstract description 16
- 238000005303 weighing Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 abstract description 9
- 239000000843 powder Substances 0.000 abstract description 5
- 238000003889 chemical engineering Methods 0.000 abstract description 3
- 239000012847 fine chemical Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 210000004907 gland Anatomy 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Abstract
According to the feeding device, the first motor, the second motor and the adjusting component are arranged to be combined with the spoon component, the adjusting component is driven to move up and down by the first motor, and the second motor is driven to rotate, so that the feeding device provided by the invention can be used for weighing materials with the precision requirement of less than +/-0.01 g, and can be widely applied to the fields of laboratories, fine chemical engineering, military products and the like; the invention has the function of automatically, quickly and accurately conveying powder; the auxiliary time of personnel and equipment in the weighing process is reduced, the phenomenon that test personnel are tired easily in the weighing process is avoided, and manual misoperation is reduced.
Description
Technical Field
The invention relates to a powder weighing device, in particular to an accurate feeding device.
Background
In the application of automatic weighing and weighing, such as mining machinery, cement, food processing and other industries, belt scales are commonly adopted for weighing and weighing, the weighing level is basically more than 1.0kg, even in tons, and the precision is basically about thousandth. In the fields of laboratories, fine chemical engineering, military products and the like, the powder is generally required to be weighed within the range of 1-30 g, the precision is mostly required to be +/-0.01 g or less, and the error range is mostly required to be within the range of 0.01% -0.3%. In this level of application, there is no automatic weighing and quantifying device on the market, and at present, an electronic balance manual weighing mode is generally adopted in related industries, and this mode completely depends on the working state of an operator to ensure quality, so that the efficiency is extremely low, and a great deal of labor cost is required to be consumed.
Disclosure of Invention
In order to solve the problems, the invention is provided with the first motor, the second motor, the material spoon assembly and the adjusting assembly, the first motor drives the adjusting assembly to move up and down, and the second motor drives the material spoon assembly to rotate, so that the feeding device provided by the invention has the function of automatically, quickly and accurately conveying powder, reduces the auxiliary time of personnel and equipment in the weighing process, avoids the phenomenon that test personnel are tired easily in the weighing process, and reduces manual misoperation, and the specific invention content is as follows:
An automatic accurate feeding device comprises a first motor, a second motor, a spoon assembly and an adjusting assembly; the spoon assembly comprises a lifting rod, a containing cup, a piston assembly, a first gear and a casing; the cup comprises a neck and a shoulder, wherein the neck comprises a first central cavity, and the shoulder comprises a containing cavity; the lifting rod passes through the first central cavity and is fixedly connected with the piston assembly; the first gear is fixedly connected to the upper end of the neck of the containing cup; the top end of the lifting rod is movably connected with the adjusting component; the containing cup is fixedly connected with the shell; the first motor is used for driving the adjusting component to move up and down; the second motor is used for driving the spoon assembly to rotate.
Preferably, the adjusting component comprises an adjusting rod, a connecting nut, a second gear and an adjusting nut, and the second gear is fixedly connected to the upper end of the adjusting rod; the tail end of the connecting nut is movably connected with the lifting rod; the adjusting rod can move up and down relative to the adjusting nut. The first motor drives the second gear to rotate, so that the adjusting rod can move up and down relative to the adjusting nut, the lifting speed of the adjusting rod can be changed by adjusting the rotating speed of the motor, and the lifting or descending of the adjusting component can be changed by changing the rotating direction of the motor.
Preferably, the adjusting assembly further comprises a bearing group I and a bearing seat I, wherein the bearing group I is accommodated in the bearing seat I; the first bearing seat is fixedly connected with the adjusting rod; the first bearing group comprises two first bearings, an upper bearing and a lower bearing, and a positioning cavity is formed between the upper bearing and the lower bearing. The bearing group is used for reducing the vibration of the adjusting component in the up-and-down movement process, so that the up-and-down movement of the adjusting component is stable.
Preferably, the connecting nut is provided with a step structure, and the step structure is accommodated in the positioning cavity, so that the connecting nut is fixed relative to the adjusting rod.
Preferably, the spoon assembly further comprises a second bearing group and a second bearing seat, wherein the second bearing group is accommodated in the second bearing seat; the second motor drives the first gear to rotate, and the second bearing seat is arranged to reduce vibration of the containing cup in the rotating process, so that the rotating movement of the containing cup is stable.
Preferably, the bearing group comprises at least one bearing II.
Preferably, the piston assembly comprises a piston rod and a piston rod connecting plate; the piston rod is fixedly connected with the piston rod connecting plate; the piston rod connecting plate is fixedly connected with the lifting rod. When the first motor drives the adjusting component to move up and down, the piston component can move up and down in the containing cavity.
Preferably, the piston assembly further comprises a piston rod positioning plate, and the piston rod positioning plate is fixedly connected with the piston rod. The piston rod positioning plate plays a role in stopping, when the first motor drives the adjusting component to move upwards to the limit position, the upper end face of the piston rod positioning plate is propped against the lower end face of the containing cup, the upper end face of the piston rod, which is caused by the fact that the adjusting component continues to move upwards, is prevented from being higher than the upper end face of the shell, and the piston rod positioning plate can be independently formed and also can be integrally formed with the piston rod.
Preferably, the cup is in interference fit with the shell.
Preferably, the vertical distance between the upper end surface of the piston rod positioning plate and the lower end surface of the connecting rotating shaft is equal to the vertical distance between the upper end surface of the piston rod and the upper end surface of the casing, so that when the first motor drives the adjusting assembly to move upwards, the upper end surface of the piston rod can be just parallel to the upper end surface of the casing.
According to the feeding device, the first motor, the second motor and the adjusting component are arranged to be combined with the spoon component, the adjusting component is driven to move up and down by the first motor, and the second motor is driven to rotate, so that the feeding device provided by the invention can be used for weighing materials with the precision requirement of less than +/-0.01 g, and can be widely applied to the fields of laboratories, fine chemical engineering, military products and the like; the invention has the function of automatically, quickly and accurately conveying powder; the auxiliary time of personnel and equipment in the weighing process is reduced, the phenomenon that test personnel are tired easily in the weighing process is avoided, and manual misoperation is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of an automatic precision feeder of the present invention;
FIG. 2 is a block diagram of the automatic precise feeding device of the present invention;
FIG. 3 is a cross-sectional view of a scoop assembly according to the present invention;
FIG. 4 is a block diagram of a scoop assembly according to the present invention;
FIG. 5 is a cross-sectional view of an adjustment assembly according to the present invention;
fig. 6 is a block diagram of an adjustment assembly of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention. The directions indicated by the terms "upper" and "lower" in the present invention are referred to with respect to the direction of the drawing.
Embodiment one:
As shown in fig. 1 and 2, an automatic precise feeding device comprises a first motor 1, a second motor 2, an adjusting component 3 and a spoon component 4; the sectional view of the spoon assembly 4 is shown in fig. 3, the structure diagram of the spoon assembly 4 is shown in fig. 5, and the spoon assembly comprises a casing 5, a piston assembly, a containing cup 10, a lifting rod 11, a connecting rotating shaft 25, a bearing seat II 12, a bearing group II 13, a bearing gland 15, a first gear 16 and a first gear gland 17; the piston assembly comprises a piston rod 8, a piston rod connecting plate 6 and a piston rod positioning plate 7, the containing cup 10 comprises a neck 28 and a shoulder 29, the neck 28 comprises a first central cavity 30, the lifting rod 11 penetrates through the first central cavity 30, and the shoulder 29 comprises a containing cavity 9 for containing the weighed materials.
The piston assembly is fixedly connected to the tail end of the lifting rod 11, the tail end refers to the tail end of the lifting rod 11 at a position close to the lower end face of the lifting rod 11 according to the direction of illustration, the piston rod connecting plate 6 is fixedly connected with the lifting rod 11, the fixed connection mode can be buckle connection or other fixed connection modes, the piston rod 8 is fixedly connected with the piston rod connecting plate 6, the fixed connection mode can be any fixed connection mode, the piston rod positioning plate 7 is fixedly connected with the piston rod 8, the fixed connection mode can be any fixed connection mode, the piston rod positioning plate 7 can also be integrally formed with the piston rod 8, a certain gap is reserved between the upper end face of the piston rod positioning plate 7 and the lower end face of the sleeve shell 29 of the containing cup 10, the piston rod positioning plate 7 plays a role of stopping, when the lifting rod 11 drives the piston rod assembly to move upwards to the limit position, the upper end face of the piston rod positioning plate 7 abuts against the lower end face of the containing cup 10, the upper end face of the piston rod 8 is prevented from being higher than the upper end face of the sleeve 5 due to the fact that the piston assembly continues to move upwards, and the upper end face of the piston assembly is enabled to move vertically and parallel to the upper end face of the piston rod 8 when the upper end face of the piston assembly is enabled to move vertically and the upper end face of the piston rod is enabled to be parallel to the piston rod 5.
In order to prevent the piston assembly from being excessively resistant during the downward movement of the piston assembly in the cavity 9, a small hole is formed in the lifting rod 11 in a direction perpendicular to the axis of the lifting rod 11, a through hole is formed in the center of the piston rod connecting plate 6, and the opposite sides of the bottom of the housing 5 protrude downward to form a cavity structure which is advantageous in reducing the resistance of the downward movement of the piston assembly when the piston assembly moves downward, the shape of the downward protrusion of the bottom of the housing 5 may be any shape, and in this embodiment, the downward protrusion of the housing 5 is tapered.
Because the piston assembly moves up and down within the housing 5, lubrication is smeared on the side walls of the piston assembly that contact the housing 5, reducing the resistance of the piston assembly to movement within the housing 5. The shoulder 29 of the cup 10 is fixedly connected to the sleeve in a variety of ways, preferably in the present invention the shoulder 29 of the cup 10 is an interference fit with the sleeve.
The first gear 16 is disposed at the upper end of the neck 28 of the container cup 10, the upper end of the neck 2 of the container cup 10 is near the upper end of the neck 28 of the container cup 10 according to the direction shown in the figure, the first gear 16 is fixedly connected with the neck 28 of the container cup 10, the gear gland 17 is disposed at the upper part of the first gear 16, and the gear gland 17 is used for protecting the first gear 16. A second bearing group 13 and a second bearing seat 12 are arranged below the first gear 16, the second bearing group 13 is accommodated in the second bearing seat 12, the second motor drives the first gear 16 to rotate, and the purpose of the arrangement of the second bearing group 13 is to reduce vibration of the accommodating cup 10 in the rotating process, so that the rotating motion of the accommodating cup 10 is smoother. The second bearing set 13 includes at least one second bearing, and in this embodiment, the second bearing set 13 includes two second bearings.
The adjusting assembly shown in the cross section of fig. 5 and the structure diagram of the adjusting assembly shown in fig. 6 comprises an adjusting rod 22, a connecting nut 18, a second gear 21 and an adjusting nut 25, wherein the second gear 21 is fixedly connected to the upper end of the adjusting rod 22; the tail end of the connecting nut 18 is movably connected with the lifting rod 11; the adjusting lever 22 can move up and down with respect to the adjusting nut 25. The adjusting assembly further comprises a bearing group I20 and a bearing seat I19, wherein the bearing group I20 is accommodated in the bearing seat I19; the first bearing seat 19 is fixedly connected with the adjusting rod 22; the first bearing set 20 includes two first bearings, an upper bearing and a lower bearing, with a positioning cavity 24 formed therebetween. The bearing set 20 is provided for reducing vibrations of the adjustment assembly during the up and down movement, so that the up and down movement of the adjustment assembly is smoother. The coupling nut 18 is provided with a step structure 23, which step structure 23 is accommodated in the positioning cavity 24, so that the coupling nut 18 is fixed relative to the adjustment rod 22.
The first motor 1 comprises a first motor output shaft, the second motor 2 comprises a second motor output shaft, the first motor output shaft is parallel to the first motor output shaft, the first motor output shaft and the second motor output shaft are all arranged in parallel to the adjusting rod 22, a third gear is fixedly connected to the first motor output shaft, the first motor output shaft rotates to drive the third gear to rotate, the third gear is meshed with the second gear 21, the second gear 21 is driven to rotate, and therefore the adjusting assembly 3 can move up and down relative to the adjusting nut 27. When the adjusting component 3 moves up and down relative to the adjusting nut 27, the lifting rod 11 can be driven to move up and down, so that the piston component is driven to move up and down in the accommodating cavity 9. When the piston assembly moves downwards in the containing cavity 9, the material to be weighed is placed in the containing cavity 9, then the rotating direction of the first motor 1 is changed, then the piston assembly moves upwards in the containing cavity 9 until a part of the material is higher than the containing cavity 9, at the moment, the second motor 2 is started to rotate, the second motor 2 rotates to drive the first gear to rotate, so that the cup 10, the piston assembly and the shell 5 are driven to integrally rotate, the material higher than the containing cavity 9 is thrown to a weighing device below to be weighed, and the quantity and the speed of material throwing can be changed by changing the rotating speeds of the motor 1 and the motor 2.
Embodiment two:
This embodiment describes only technical features different from the above-described embodiments, and the remaining technical features are the same. The spoon assembly 4 further comprises a connecting rotating shaft 25, the connecting rotating shaft 25 comprises a second central hole 31, the second central hole 31 is coaxial with the first central hole 30, the connecting rotating shaft 25 is fixedly connected with the neck 28 of the cup 10 in various manners, in the embodiment, the connecting rotating shaft 25 is fixedly connected with the neck 28 of the cup 10 through a screw 26, the bearing seat two 12 and the first gear 16 are respectively and fixedly connected with the connecting rotating shaft 25, and the purpose of the arrangement is to facilitate manufacturing, in particular to facilitate forming of the cup 10.
Embodiment III:
This embodiment describes only technical features different from the above-described embodiments, and the remaining technical features are the same. The structure of the spoon assembly 4 is the same as that in the first embodiment, the adjusting assembly 3 does not comprise the second gear 21, the output shaft of the first motor 1 is perpendicular to the adjusting rod 22, a coil spring is arranged between the first motor 1 and the adjusting assembly 3, one end of the coil spring is fixedly connected to the output shaft of the first motor 1, the other end of the coil spring is fixedly connected to the adjusting rod 22, when the first motor 1 rotates, the coil spring is driven to stretch or shrink, and when the coil spring stretches or shrinks, the moment can be provided to maintain the adjusting assembly 3 to be stable at any height, so that a proper coil spring needs to be selected according to the total weight of the adjusting assembly 3 and the spoon assembly 4.
Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not constitute any limitation on the invention.
Claims (4)
1. An automatic accurate material feeding unit, its characterized in that: comprises a first motor, a second motor, a spoon assembly and an adjusting assembly; the spoon assembly comprises a lifting rod, a containing cup, a piston assembly, a first gear and a casing; the cup comprises a neck and a shoulder, wherein the neck comprises a first central cavity, and the shoulder comprises a containing cavity; the lifting rod passes through the first central cavity and is fixedly connected with the piston assembly; the first gear is fixedly connected to the upper end of the neck of the containing cup; the top end of the lifting rod is movably connected with the adjusting component; the containing cup is fixedly connected with the shell; the first motor is used for driving the adjusting component to move up and down; the second motor is used for driving the spoon assembly to rotate;
The adjusting assembly comprises an adjusting rod, a connecting nut, a second gear and an adjusting nut, and the second gear is fixedly connected to the upper end of the adjusting rod; the tail end of the connecting nut is movably connected with the lifting rod; the adjusting rod can move up and down relative to the adjusting nut;
The adjusting assembly further comprises a bearing group I and a bearing seat I, and the bearing group I is accommodated in the bearing seat I; the first bearing seat is fixedly connected with the adjusting rod; the first bearing group comprises two first bearings, an upper bearing and a lower bearing, and a positioning cavity is formed between the upper bearing and the lower bearing;
The connecting nut is provided with a step structure, and the step structure is accommodated in the positioning cavity;
The piston assembly comprises a piston rod and a piston rod connecting plate; the piston rod is fixedly connected with the piston rod connecting plate; the piston rod connecting plate is fixedly connected with the lifting rod;
The piston assembly further comprises a piston rod positioning plate, and the piston rod positioning plate is fixedly connected with the piston rod;
The vertical distance between the upper end surface of the piston rod positioning plate and the lower end surface of the shoulder of the containing cup is equal to the vertical distance between the upper end surface of the piston rod and the upper end surface of the shell;
A certain gap is reserved between the upper end face of the piston rod positioning plate and the lower end face of the shoulder part of the containing cup, the piston rod positioning plate plays a role in stopping position, and when the lifting rod drives the piston rod assembly to move upwards to a limit position, the upper end face of the piston rod positioning plate abuts against the lower end face of the shoulder part of the containing cup, so that the upper end face of the piston rod, which is caused by the fact that the piston assembly continues to move upwards, is prevented from being higher than the upper end face of the shell;
The first motor comprises a first motor output shaft, the second motor comprises a second motor output shaft, the first motor output shaft is parallel to the first motor output shaft, the first motor output shaft and the second motor output shaft are both arranged in parallel to the adjusting rod, a third gear is fixedly connected to the first motor output shaft, the first motor output shaft rotates to drive the third gear to rotate, the third gear is meshed with the second gear, and therefore the second gear is driven to rotate, and therefore the adjusting assembly can move up and down relative to the adjusting nut; when the adjusting component moves up and down relative to the adjusting nut, the lifting rod can be driven to move up and down, so that the piston component is driven to move up and down in the accommodating cavity; when the piston assembly moves downwards in the containing cavity, the materials to be weighed are placed in the containing cavity, then the rotating direction of the first motor is changed, then the piston assembly moves upwards in the containing cavity until a part of the materials are higher than the containing cavity, at the moment, the second motor is started to rotate, the second motor can drive the first gear to rotate, so that the containing cup, the piston assembly and the casing are driven to integrally rotate, the materials higher than the containing cavity are thrown to a weighing device below to be weighed, and the thrown quantity and speed of the materials can be changed by changing the rotating speed of the motor and the rotating speed of the motor.
2. The precision feeding apparatus according to claim 1, wherein: the spoon assembly further comprises a second bearing group and a second bearing seat, and the second bearing group is accommodated in the second bearing seat.
3. The precision feeding apparatus according to claim 2, wherein: the bearing group comprises at least one bearing II.
4. The precision feeding apparatus according to claim 1, wherein: the containing cup is in interference fit with the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299307.4A CN108217165B (en) | 2018-04-04 | 2018-04-04 | Automatic accurate material feeding unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299307.4A CN108217165B (en) | 2018-04-04 | 2018-04-04 | Automatic accurate material feeding unit |
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| Publication Number | Publication Date |
|---|---|
| CN108217165A CN108217165A (en) | 2018-06-29 |
| CN108217165B true CN108217165B (en) | 2024-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810299307.4A Active CN108217165B (en) | 2018-04-04 | 2018-04-04 | Automatic accurate material feeding unit |
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| CN (1) | CN108217165B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208166001U (en) * | 2018-04-04 | 2018-11-30 | 广东科达洁能股份有限公司 | A kind of automatic and accurate feed device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1281217A (en) * | 1968-08-02 | 1972-07-12 | Azionaria Costruzioni Acma Spa | An improved driving and control unit for rotatable dispensers of predetermined quantities of materials |
| FR2435703A1 (en) * | 1978-06-27 | 1980-04-04 | Lafarge Ciments Sa | WEIGHING DEVICE AND INSTALLATION COMPRISING SUCH A DEVICE, IN PARTICULAR FOR THE TITRATION OF A POWDERY MATERIAL IN PARTICULAR A CEMENT GROWTH |
| FR2664694A1 (en) * | 1990-07-12 | 1992-01-17 | Sedepro | MEASURING DEVICE FOR GRAIN OR POWDER PRODUCTS. |
| JP2549988B2 (en) * | 1994-04-11 | 1996-10-30 | 株式会社村田色彩エンジニヤリング | Liquid metering device |
| EP2014372B1 (en) * | 2007-06-08 | 2009-12-16 | Mettler-Toledo AG | Metering device for material in powder or paste form |
| CN202284073U (en) * | 2011-08-01 | 2012-06-27 | 梁华亮 | Underneath driving centrifugal material settling machine |
| CN103449160B (en) * | 2013-08-07 | 2017-03-01 | 浙江日发精密机械股份有限公司 | A kind of Disk feeder device of numerical control machine tool automation line |
| CN104075784B (en) * | 2014-03-31 | 2017-01-18 | 陕西省农业机械研究所 | Automatic quantitative quasi-static weighing method and device |
| CN203832769U (en) * | 2014-04-28 | 2014-09-17 | 贵州飞云岭药业股份有限公司 | Measuring device of packaging machine |
| CN204173515U (en) * | 2014-09-02 | 2015-02-25 | 杭州海皇饲料开发有限公司 | A kind of bucket elevator |
| CN205120219U (en) * | 2015-12-01 | 2016-03-30 | 中磁科技股份有限公司 | Automatic title powder equipment |
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2018
- 2018-04-04 CN CN201810299307.4A patent/CN108217165B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208166001U (en) * | 2018-04-04 | 2018-11-30 | 广东科达洁能股份有限公司 | A kind of automatic and accurate feed device |
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