Automatic discharging system of powder
Technical Field
The invention relates to automatic quantitative powder sorting equipment, in particular to a discharging system in the equipment. The automatic quantitative sorting equipment is used for replacing the traditional manual process of preparing powder products according to the formula and comprises an automatic discharging system, and the automatic discharging system can finish the work of quantitatively discharging each raw material powder according to the formula. The powder relates to powdery, powdery and granular materials in the industries of chemical industry, food, agricultural and sideline products and the like, and comprises the following components in parts by weight: milk powder, starch, pesticides, fertilizers, veterinary drugs, premix compounds, additives, seasonings, feeds, enzyme preparations, soil and the like, and does not comprise traditional Chinese medicines.
Background
The traditional powder product, taking chemical fertilizer as an example, is produced by weighing raw material powder with different components according to the weight requirement of the formula and mixing. Because storage, taking out, weighing and mixing of different raw material powder are involved, different equipment is needed in all links, so that the total amount of the equipment is huge and the operation can be completed only by manpower. The method not only wastes time and labor and has low efficiency, but also can not ensure the quality of the final product, and has the defects of high labor cost, high maintenance difficulty, poor reliability and the like.
Therefore, in view of the above circumstances, how to develop an automatic quantitative powder sorting apparatus becomes a problem to be solved at present, and the present invention is mainly directed to an automatic discharging system of the sorting apparatus.
Disclosure of Invention
The invention aims to provide an automatic powder discharging system.
In order to achieve the purpose, the invention adopts the technical scheme that: an automatic discharging system of powder is used for automatic quantitative sorting equipment of the powder, and the powder does not contain traditional Chinese medicines; the equipment comprises a frame, the automatic discharging system is fixed relative to the frame,
the automatic discharging system comprises at least one group of discharging units and a receiving container arranged below the discharging units;
the discharging unit comprises at least one group of discharging devices, and each discharging device comprises a material storage container, a discharging mechanism and a weighing mechanism which are arranged from top to bottom; wherein,
the bottom of the material storage container is provided with a blanking port;
the discharging mechanism is provided with a feeding port and a discharging port, the feeding port is communicated with the discharging port, and the discharging port is arranged downwards corresponding to the weighing mechanism and used for transferring the powder in the storage container to the weighing mechanism;
the weighing mechanism is positioned below the blanking mechanism and comprises a bearing device for bearing powder and a weighing device; the bearing device is arranged right below the discharge hole and comprises a discharge door capable of being controlled to be opened or closed; the weighing component is fixed relative to the rack through a bracket, is connected to the bearing component and is used for measuring the mass change of the bearing component; and the weighing component is also connected with a control circuit, and the control circuit is electrically connected with the blanking mechanism to control the blanking of the blanking mechanism.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, the material receiving container is used for receiving the quantitative sorted powder coming out from the discharging unit.
2. In the above scheme, discharging device is including the storage container, unloading mechanism and the weighing machine structure that from top to bottom arrange to connect the material container to locate discharge unit's below, consequently can rely on the dead weight of powder to follow downward ejection of compact to connect the material container in the discharging device. Preferably, the arrangement is vertical, and may be diagonal or transverse.
3. In the above scheme, the bearing device is arranged right below the discharge port and used for receiving quantitative powder given by the discharging mechanism. The weighing component is used for converting the weight signal of the powder into an electric signal.
4. In the above scheme, the control circuit is electrically connected with the discharging mechanism and used for controlling the discharging mechanism to transfer the powder in the storage container to the weighing mechanism. When the mass change value measured by the weighing components of the weighing mechanism reaches the discharge amount required by the system, the control circuit controls the discharging mechanism to stop discharging. The control circuit can be replaced by a PLC, an IC, an analog circuit and the like to realize the same function.
5. In the above scheme, the number of the discharging units is a group, and the material receiving container is arranged corresponding to a discharging door of a bearing device in the discharging device.
6. In the above scheme, the number of the discharging units is two or more, each discharging unit further comprises an aggregate channel group, the number of the aggregate channels in the aggregate channel group is consistent with the number of the discharging devices in the discharging unit, and the upper end of each aggregate channel is correspondingly connected with the discharging door of each discharging device; the lower ends of the collecting channels in the collecting channel group are converged and arranged downwards and are in aligned fit with the receiving container. The aggregate channel is used for discharging of the corresponding discharging device, and the aggregate channels are mutually independent, so that different powder agents are prevented from being mutually connected.
7. In the scheme, a plurality of discharging devices in the discharging unit are arranged in an aggregation manner, the collecting channel group is arranged in a funnel shape, the upper part of the collecting channel group is wide and the lower part of the collecting channel group is narrow, the wide opening at the upper part of the collecting channel group is connected below all the discharging devices and is arranged corresponding to the discharging doors of all the weighing mechanisms, and the narrow opening at the lower part of the collecting channel group is downwards arranged and is in contraposition fit with the receiving container; the aggregate channel group is formed by a plurality of aggregate channels at intervals of grids.
8. In the above scheme, a plurality of discharging devices in the discharging unit are arranged in a dispersed manner, the collecting channel in the collecting channel group is a material conveying pipe, the upper end of the material conveying pipe is correspondingly connected with the discharging door of the discharging device, and the lower ends of the material conveying pipes are gathered and arranged downwards and are in aligned fit with the material receiving container.
9. In the above scheme, storage container is inclosed storage tank, this storage tank with unloading mechanism sealing connection, the blanking mouth of storage tank below with the pan feeding mouth intercommunication of unloading mechanism. The storage container can also be a storage barrel with an open top, and can be selected according to the storage requirements of the powder, and if the stored powder is sensitive to humidity and cannot be damped, a closed storage tank is selected. Wherein, inclosed storage tank top still can be equipped with can open and closed top cap, opens this top cap and can directly feed in to the storage tank.
10. In the scheme, the structure of the blanking mechanism can be simple and complex. If the blanking precision is not pursued, the blanking mechanism can be directly provided with a valve which can be controlled to be opened or closed at the discharging opening from the simple design point, and the valve is directly or indirectly controlled by a control circuit of the weighing mechanism;
in view of the complex design with higher precision and practicability, the blanking mechanism further comprises a driving motor and a rotating rod which are arranged from top to bottom, a closed shell is further sleeved outside the rotating rod, and an output shaft below the driving motor extends into the shell; the rotating rod is coaxially fixed on the output shaft; the upper end of the shell is also provided with the feeding port, and the lower end of the shell is provided with the discharging port; a spiral groove is cut on the outer surface of the lower end of the rotating rod; the inner wall of the shell is tightly matched with the spiral groove in an attaching mode, a channel forming the spiral groove is a closed powder conveying channel, the upper end of the conveying channel is communicated with the feeding port, and the lower end of the conveying channel is communicated with the discharging port. The drive motor is electrically connected with the control circuit, when the weighing mechanism weighs a certain amount of powder, the weighing component can feed back a signal to the control circuit, the drive motor is shut down through the control circuit, and the rotating rod of the blanking mechanism is stopped to continue spiral blanking.
11. In the above scheme, the weighing component is a single-point type weighing sensor; the bracket is fixed relative to the frame, one end of the single-point type weighing sensor is fixed on the bracket, and the other end of the single-point type weighing sensor is connected with the bearing device.
12. In the scheme, the weighing component is a button type weighing sensor; the support is rotatably connected with the frame through a rotating fulcrum, the button type weighing sensor and the bearing device are respectively arranged on the support on two sides of the rotating fulcrum, the top of the button type weighing sensor is attached to a pressing part of the discharging device, and the pressing part is fixed relative to the frame.
13. In the scheme, a valve is arranged at the discharge port of the discharging mechanism, and the discharging or stopping of the discharging mechanism is realized through the opening or closing of the valve;
the discharging device also comprises a linkage control mechanism; the linkage control mechanism comprises a driving device and a driving rod driven by the driving device to move up and down, the driving device is electrically connected with the control circuit, and the driving rod is upwards matched with a valve at a discharge port in the blanking mechanism and used for opening and closing the valve; the driving rod is downwards matched with a discharge door of a bearing device in the weighing mechanism and is used for opening and closing the discharge door;
the driving rod has the following three working positions:
when the driving rod is in the middle working position, the driving rod does not act on the valve or the discharge door, so that the valve and the discharge door are kept in a closed state;
when the driving rod is positioned at the upper part, the driving rod acts on the valve to force the valve to be opened downwards, powder in the blanking mechanism falls into the weighing mechanism, and the valve is in an open state and the discharge door is kept in a closed state;
and when the driving rod is positioned at the lower part, the driving rod acts on the discharging door to force the discharging door to be opened downwards, powder in the bearing device falls out of the bearing device, and the valve is kept in a closed state and the discharging door is in an opened state.
14. In the above scheme, the driving motor of the blanking mechanism is a stepping motor or a servo motor, the two motors are convenient to control and meet the requirement of high precision, but the stepping motor is preferred because the servo motor is high in price.
15. In the above scheme, still towards protruding at least puddler that is equipped with all around on the body of rod of dwang, borrow this design stirring in the storage tank unloading is favorable to the powder to be compacter in the shell of unloading mechanism, reduces or even eliminates the long-pending of air in the powder and collects up for the load is better controlled.
The working principle and the advantages of the invention are as follows:
the invention relates to an automatic powder discharging system which comprises at least one group of discharging units, wherein a material receiving container is arranged below each discharging unit. Each discharging unit comprises at least one group of discharging devices, and each discharging device comprises a storage container, a discharging mechanism and a weighing mechanism which are arranged from top to bottom. The blanking mechanism is used for transferring powder in the storage container to the weighing mechanism, the weighing mechanism weighs the powder falling out of the blanking mechanism and is electrically connected with the blanking mechanism so as to control the blanking mechanism to fall out quantitative powder meeting the requirement, the quantitative powder is poured onto the material receiving container, the material receiving container receives and takes each powder listed in the formula, and full-automatic formula configuration is completed. Compared with the prior art, the automatic quantitative sorting machine disclosed by the invention has the advantages that the automatic quantitative sorting of powder is realized, the problems of low manual efficiency and high working strength in the traditional method are solved, and the automatic quantitative sorting machine has the advantages of high sorting speed, high reliability and small occupied area.
Drawings
FIG. 1 is a schematic structural diagram (front view) of an embodiment of the present invention;
FIG. 2 is a schematic structural view (perspective view) of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram (perspective view) of a discharging unit according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram (front view) of a discharging device using a single-point weighing sensor according to an embodiment of the present invention;
3 FIG. 3 5 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 in 3 FIG. 3 4 3; 3
FIG. 6 is a schematic structural diagram (perspective view) of a discharging device using a single-point weighing sensor according to an embodiment of the present invention;
FIG. 7 is a schematic structural view (perspective) of a material collection channel group below a discharge unit according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional structure diagram of a blanking mechanism according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram (front view) of a discharging device using a button-type weighing sensor according to an embodiment of the present invention;
FIG. 10 is a schematic sectional view taken along line B-B in FIG. 9;
fig. 11 is a schematic structural view (perspective view) of a discharging device using a button-type weighing sensor according to an embodiment of the present invention.
In the above drawings: 1. an automatic discharge system; 2. a receiving container; 3. a discharging unit; 4. a discharging device; 5. a material storage tank; 6. a blanking port; 7. a feeding port; 8. a discharge port; 9. a carrier device; 10. a discharge door; 11. a support; 12. a group of aggregate channels; 13. a material collection channel; 14. a barrier; 15. a housing; 16. a drive motor; 17. rotating the rod; 18. an output shaft; 19. a helical groove; 20. a single-point weighing sensor; 21. a button-type weighing sensor; 22. rotating a fulcrum; 23. a pressing part; 24. a valve; 25. a drive rod; 26. a transmission assembly line; 27. a stirring rod; 28. a load bearing blade; 29. a motor; 30. a driving cylinder; 31. a shifting fork; 32. and (6) pressing the head.
Detailed Description
The invention is further described with reference to the following figures and examples:
example (b): referring to fig. 1 and 2, an automatic powder discharging system 1 is provided for an automatic quantitative powder sorting apparatus (not shown), wherein the powder does not include traditional Chinese medicines; the equipment comprises a frame, and the automatic discharging system 1 is fixed relative to the frame; the automatic discharging system 1 comprises a plurality of groups of discharging units 3 and receiving containers 2 vertically arranged below the discharging units 3.
As shown in fig. 3, the discharging unit 3 includes eight groups of discharging devices 4 (the number of discharging devices can be increased or decreased according to the requirement, and two storage tanks 5 are hidden in the figure).
As shown in fig. 4 to 6, each of the discharging devices 4 includes a material storage tank 5, a discharging mechanism and a weighing mechanism vertically arranged from top to bottom; the bottom of the material storage tank 5 is provided with a blanking port 6; the blanking mechanism is provided with a feeding port 7 and a discharging port 8, the feeding port 7 is communicated with the blanking port 6, the discharging port 8 faces downwards and corresponds to the weighing mechanism, and the blanking mechanism is used for transferring the powder in the storage tank 5 to the weighing mechanism;
the weighing mechanism is positioned below the blanking mechanism and comprises a bearing device 9 for bearing powder and a weighing sensor 20 (21); the bearing device 9 is arranged right below the discharge hole 8 and comprises a discharge door 10 which can be controlled to open or close; the weighing sensor 20 (21) is fixed relative to the frame 1 through a bracket 11, is connected to the bearing device 9 and is used for measuring the mass change of the bearing device 9; and the weighing sensor 20 (21) is also connected with a control circuit (not shown in the figure), and the control circuit is electrically connected with the blanking mechanism to control the blanking of the blanking mechanism.
The material receiving container 2 is used for receiving the quantitative sorted powder from the discharging unit, and a box or a bag and the like can be placed in the material receiving container 2, so that after the formula configuration is completed, powder products can be packaged into finished products to be delivered to customers.
As shown in fig. 3, each discharging unit 3 further includes a group of collecting channels 12, the number of collecting channels 13 in the group of collecting channels 12 is the same as the number of discharging devices 4 in the discharging unit 3, and is also eight, and the upper end of each collecting channel 13 is correspondingly connected with the discharging door 10 of each discharging device 4; the lower ends of the aggregate channels 13 in the aggregate channel group 12 are converged and arranged downwards, and are in contraposition fit with the receiving container 2. The aggregate channels 13 are used for discharging materials of the corresponding discharging devices 4, and the aggregate channels 13 are mutually independent, so that different powders are prevented from being mutually connected.
Specifically, the plurality of discharging devices 4 in the discharging unit 3 are arranged in an aggregation manner to save the occupied space of the equipment, the collecting channel group 12 is arranged in a funnel shape (see fig. 7), the upper part is wide and the lower part is narrow, the wide opening at the upper part is connected below all the discharging devices 4 and is arranged corresponding to the discharging door 10 of each weighing mechanism, and the narrow opening at the lower part is arranged downwards and is matched with the receiving container 2 in an alignment manner; the aggregate channel group 12 is partitioned by the grids 14 to form a plurality of aggregate channels 13.
In another embodiment (not shown), each of the material collecting channels is a material conveying pipe, the upper end of the material conveying pipe is correspondingly connected with the discharging door 10 of the discharging device, and the lower end of each material conveying pipe is converged and arranged downwards to be aligned and matched with the material receiving container 2. This further embodiment can also be used in the case of a decentralized arrangement of the discharge device 4, and the powder to be transported can be not only in the form of powder or granules, but also in the form of liquid powder.
As shown in fig. 5, the blanking port 6 below the storage tank 5 is communicated with the feeding port 7 of the blanking mechanism, and is connected with the blanking mechanism in a sealing manner. The storage tank 5 can be replaced by a storage barrel (not shown in the figure) with an open top, and the storage tank 5 is selected according to the storage requirement of the powder, if the stored powder is sensitive to humidity and cannot be affected with damp.
As shown in fig. 8, the blanking mechanism further includes a driving motor 16 and a rotating rod 17 vertically arranged from top to bottom, and a sealed housing 15 is further sleeved outside the rotating rod 17, and an output shaft 18 below the driving motor 16 extends into the housing 15; the rotating rod 17 is coaxially fixed on the output shaft 18; the upper end of the shell 15 is also provided with the feeding port 7, and the lower end of the shell 15 is provided with the discharging port 8 (see fig. 5); a spiral groove 19 is cut on the outer surface of the lower end of the rotating rod 17, and powder entering the blanking mechanism shell 15 from the storage tank 5 enters the spiral groove 19 under the action of gravity; the inner wall of the shell 15 is closely matched with the spiral groove 19, a channel forming the spiral groove 19 is a closed powder conveying channel, the upper end of the conveying channel is communicated with the feeding port 7, and the lower end of the conveying channel is communicated with the discharging port 8; when the rotating rod 17 rotates, the spiral groove 19 of the rotating rod pushes the powder in the groove to move downwards, so that the discharging is realized. The driving motor 16 can be a stepping motor (or a servo motor), is convenient to control, and meets the requirement of high precision. The driving motor 16 is electrically connected with the control circuit, when the weighing mechanism weighs a sufficient amount of certain flavor powder, the weighing sensor 20 (21) feeds back a signal to the control circuit, the driving motor 16 is shut down through the control circuit, and the rotating rod 17 of the blanking mechanism is stopped to continue spiral blanking. Still can be towards protruding at least puddler 27 that is equipped with all around on the body of rod of dwang 17, borrow this design stirring when the unloading of storage tank 5 is favorable to the powder to be compacter in the shell 15 of unloading mechanism, reduces or even eliminates the long-pending of air in the powder and collects up for the load is better controlled.
The structure of the blanking mechanism can also be simplified and designed (not shown in the figure), for example, a valve which can be controlled to be opened or closed is directly arranged at the discharge hole 8 and is directly or indirectly controlled by a control circuit of the weighing mechanism, and the design has the defects that the precision control of the blanking amount is not as high as that of the continuous spiral blanking of the rotating rod 17, and the cost is low.
As shown in fig. 4 to 6, the load cell is a single-point load cell 20; the bracket 11 is fixed relative to the frame 1, one end of the single-point weighing sensor 20 is fixed on the bracket 11, and the other end is connected with the bearing device 9, the bearing device 9 in this embodiment is a storage hopper, and the discharge door 10 is hinged on the storage hopper.
As shown in fig. 9-11, the weighing sensor can also be a button-type weighing sensor 21 (omitting a storage tank); the bracket 11 is rotatably connected with the frame 1 through a rotating fulcrum 22, the button-type weighing sensor 21 and the bearing device 9 are respectively arranged on the bracket 11 at two sides of the rotating fulcrum 22, the top of the button-type weighing sensor 21 is attached to a pressing part 23 of the discharging device 4, and the pressing part 23 is fixed relative to the frame 1. The carrying means 9 in this embodiment is a carrying blade 28, which carrying blade 28 is driven by a motor 29 to turn over and thus also function as the discharge door 10. When the bearing blade 28 is horizontally arranged, the bearing blade plays a role of bearing the device 9 and simultaneously plays a role of closing the discharging door 10; and when the carrying blade 28 is vertically disposed, it functions to open the discharging door 10.
As shown in fig. 8, a valve 24 is further disposed at the discharge port 8 of the discharging mechanism, and the discharging or stopping of the discharging mechanism is realized by opening or closing the valve 24;
the discharging device 4 also comprises a linkage control mechanism; as shown in fig. 6, for example, in the embodiment of the single-point weighing sensor, the linkage control mechanism includes a driving device and a driving rod 25 driven by the driving device to move up and down, the driving device may be a driving cylinder 30, and the driving cylinder 30 is electrically connected to the control circuit. A shifting fork 31 is arranged on the driving rod 25 in a linkage manner, so that the driving rod 25 is upwards matched with the valve 24 of the discharge hole 8 in the blanking mechanism, and the shifting fork 31 is used for opening and closing the valve 24; the bottom of the driving rod 25 is provided with a pressing head 32, the driving rod 25 is formed to be downwards matched with the discharging door 10 of the bearing device 9 in the weighing mechanism, and the pressing head 32 is used for opening and closing the discharging door 10;
the drive rod 25 has the following three operating positions:
first, middle working position: when the driving rod 25 is in the middle working position, the driving rod 25 does not act on the valve 24 or the discharging door 10, so that the valve 24 and the discharging door 10 are both kept in a closed state;
II, an upper working position: when the driving rod 25 is at the upper position, the driving rod 25 acts on the valve 24 to force the valve 24 to open downwards, so that the powder in the blanking mechanism falls into the weighing mechanism, the valve 24 is in an open state, and the discharge door 10 is kept in a closed state;
thirdly, the lower working position: when the driving rod 25 is at the lower position, the driving rod 25 acts on the discharging door 10 to force the discharging door 10 to open downwards, so that the powder in the bearing device 9 falls out of the bearing device 9, the valve 24 is kept in a closed state, and the discharging door 10 is in an open state.
The embodiment of the linkage control mechanism for a button-type weighing cell is not specifically illustrated in the drawings herein, since the skilled person will have many ways of performing its function with reference to the above design principles. Also, the above description of the embodiment of the single-point load cell is not limited thereto, and the implementation manner thereof is various.
The working principle of the receiving container 2 is now explained as follows: when powder products are prepared according to the formula, the blanking mechanism in the discharging device 4 starts blanking, and when the weighing mechanism receives enough powder, the powder in the bearing device 9 falls out into the material receiving container 2, so that the powder receiving is completed. If other powders need to be received in the discharging unit 3, the equipment will set each discharging device 4 to discharge materials simultaneously, so as to save the total discharging time. Different powders can be respectively fed one by one, but the time consumption is long, and the practicability is not realized.
The discharging units 3 may also be set as a group (not shown), the discharging doors 10 of the discharging devices 4 in the discharging units 3 correspond to one receiving container 2, and the receiving process is the same as above. This embodiment requires a large aperture of the receiving container 2, and has the disadvantages of low efficiency and large floor space, so that it is not preferred.
The invention relates to an automatic powder discharging system which comprises at least one group of discharging units, wherein a material receiving container is arranged below each discharging unit. Each discharging unit comprises at least one group of discharging devices, and each discharging device comprises a storage container, a discharging mechanism and a weighing mechanism which are arranged from top to bottom. The blanking mechanism is used for transferring powder in the storage container to the weighing mechanism, the weighing mechanism weighs the powder falling out of the blanking mechanism and is electrically connected with the blanking mechanism so as to control the blanking mechanism to fall out quantitative powder meeting the requirement, the quantitative powder is poured onto the material receiving container, the material receiving container receives and takes each powder listed in the formula, and full-automatic formula configuration is completed. Compared with the prior art, the automatic quantitative sorting machine disclosed by the invention has the advantages that the automatic quantitative sorting of powder is realized, the problems of low manual efficiency and high working strength in the traditional method are solved, and the automatic quantitative sorting machine has the advantages of high sorting speed, high reliability and small occupied area.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.