CN112113646A - Powder weighing apparatus and powder weighing method - Google Patents
Powder weighing apparatus and powder weighing method Download PDFInfo
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- CN112113646A CN112113646A CN202011011718.2A CN202011011718A CN112113646A CN 112113646 A CN112113646 A CN 112113646A CN 202011011718 A CN202011011718 A CN 202011011718A CN 112113646 A CN112113646 A CN 112113646A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
- G01G17/06—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes having means for controlling the supply or discharge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/387—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for combinatorial weighing, i.e. selecting a combination of articles whose total weight or number is closest to a desired value
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Abstract
The application provides a powder weighing apparatus and a powder weighing method, the powder weighing apparatus includes: a controller; the powder weighing mechanism is connected with the controller and comprises a fixing piece, a first sliding block, a second sliding block and a first motor; a groove is formed from the top surface of the fixing piece to the inside of the fixing piece, the first sliding block and the second sliding block are arranged in the groove, and a cavity is defined by the opposite surfaces of the first sliding block and the second sliding block and the groove wall of the groove; the first motor is connected with the first sliding block and used for driving the first sliding block to move along the extending direction of the groove so as to adjust the quantity of the powder which can be contained in the cavity; the bottom of the cavity is provided with a first through hole for leaking the weighed powder. Compared with the traditional method of weighing through a balance, the powder weighing is carried out by changing the size of the cavity in the powder weighing mechanism, the weighing efficiency is improved, and the labor cost is saved.
Description
Technical Field
The application relates to the field of automation control, in particular to a powder weighing device and a powder weighing method.
Background
In the preparation process of the non-solid electrolyte tantalum electrolytic capacitor, the metal tantalum powder needs to be quantitatively weighed, but the traditional manual weighing method (namely, the weighing by an electronic balance) has low working efficiency and cannot meet the requirements of production and market.
Disclosure of Invention
An object of the embodiment of the application is to provide a powder weighing device and a method, which are used for solving the problem of low powder weighing efficiency.
In a first aspect, an embodiment of the present invention provides a powder weighing apparatus, including:
a controller;
the powder weighing mechanism is connected with the controller and comprises a fixing piece, a first sliding block, a second sliding block and a first motor;
a groove is formed from the top surface of the fixing piece to the inside of the fixing piece, the first sliding block and the second sliding block are arranged in the groove, and a cavity is defined by the opposite surfaces of the first sliding block and the second sliding block and the groove wall of the groove;
the first motor is connected with the first sliding block and used for driving the first sliding block to move along the extending direction of the groove so as to adjust the quantity of the powder which can be contained in the cavity;
the bottom of the cavity is provided with a first through hole for leaking the weighed powder.
Compared with the traditional method of weighing through a balance, the method has the advantages that the first motor is controlled to drive the first sliding block to move, the size of the cavity in the powder weighing mechanism is changed, the quantity of powder which can be contained in the cavity is adjusted, the powder is weighed, the weighing efficiency is improved, and the labor cost is saved.
In an optional embodiment, the powder weighing mechanism further includes a second motor, the second motor is connected to the second slider, and the second motor is configured to drive the second slider to move along the extending direction of the groove to block the through hole when weighing is performed, and drive the second slider to move in the opposite direction along the extending direction of the groove to expose the through hole when powder is leaked.
In an optional embodiment, the powder weighing device further includes a powder scraping mechanism, the powder scraping mechanism is connected with the controller and arranged above the powder weighing mechanism, and the powder scraping mechanism is used for scraping powder into a cavity of the powder weighing mechanism.
In an optional embodiment, the powder weighing device further comprises a powder leaking mechanism, and the powder leaking mechanism is connected with the controller and arranged above the powder scraping mechanism;
the powder leaking mechanism is connected with the powder scraping mechanism through a guide pipe, the powder is filled in the powder leaking mechanism, and the powder leaks into the powder scraping mechanism through the guide pipe.
In an optional embodiment, the powder scraping mechanism further comprises a powder box and a correlation inductor;
an opening is arranged below the powder box, the powder box is tightly attached to the top surface of the fixing piece, a second through hole is arranged above the powder box, and the guide pipe is communicated with the powder box through the second through hole;
the correlation inductor is arranged on two opposite sides of the powder box and used for detecting the height of powder in the powder box.
Through adopting the correlation inductor to measure the powder volume in the powder box, ensure to have sufficient powder volume in the powder box, and then guarantee scraping whitewashed back, can fill up the cavity of title powder mechanism to improve the accuracy that the powder was weighed.
In an optional embodiment, the powder weighing device further comprises an alarm connected to the controller for alarming when the powder in the powder box is below a preset height.
In an optional embodiment, the powder weighing device further comprises a powder containing mechanism, wherein the powder containing mechanism comprises a three-axis driving mechanism and a bearing piece;
the powder containing mechanism is arranged below the powder weighing mechanism;
the bearing piece is arranged above the three-axis driving mechanism, the three-axis driving mechanism is connected with the controller, and the three-axis driving mechanism is used for driving the bearing piece to move and containing the weighed powder.
Through setting up triaxial actuating mechanism and bearing the piece, can connect the powder after weighing greatly automatically, improve and call powder efficiency.
In an alternative embodiment, the powder weighing apparatus further comprises an interactive screen, the interactive screen being connected to the controller.
In a second aspect, an embodiment of the present invention provides a powder weighing method applied to a controller of a powder weighing apparatus according to the foregoing embodiment, including:
acquiring a displacement distance;
and controlling the first motor to drive the first sliding block to move the displacement distance, so that after the first sliding block moves, the size of the cavity corresponds to the mass of the powder.
In a third aspect, an embodiment of the present invention provides a powder weighing method, which is applied to a controller of a powder weighing device, where the powder weighing device further includes a powder leaking mechanism, a powder scraping mechanism, a powder weighing mechanism, and a powder containing mechanism, which are connected to the controller, the powder weighing mechanism includes a first motor and a first slider, and the powder weighing method includes:
controlling the powder leaking mechanism to leak powder into the powder scraping mechanism;
controlling the powder scraping mechanism to scrape the powder into the powder weighing mechanism;
acquiring a displacement distance;
controlling the first motor to drive the first sliding block to move the displacement distance, so that after the first sliding block moves, the size of the cavity corresponds to the mass of the powder;
and after the powder weighing mechanism is filled with the powder, controlling the powder containing mechanism to contain the powder weighed by the powder weighing mechanism.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a block diagram of a powder weighing apparatus according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a powder weighing apparatus according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a powder weighing mechanism provided in the embodiment of the present application;
FIG. 4 is a schematic cross-sectional view taken along A-A of a powder weighing mechanism according to an embodiment of the present disclosure;
fig. 5 is a schematic view of a powder scraping mechanism provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of a powder leaking mechanism according to an embodiment of the present disclosure;
FIG. 7 is a schematic view of a powder containing mechanism according to an embodiment of the present disclosure;
FIG. 8 is a flow chart of a powder weighing method according to an embodiment of the present disclosure;
fig. 9 is a flowchart of another powder weighing method provided in an embodiment of the present application.
Icon: 100-powder weighing equipment; 101-a controller; 102-powder weighing mechanism; 103-a powder scraping mechanism; 104-a powder leakage mechanism; 105-a powder containing mechanism; 201-a fixing member; 2011-grooves; 2012-chamber; 202-a first slider; 203-a second slider; 204-a first motor; 205-a second motor; 206-a first via; 401-powder box; 402-correlation sensor; 403-a second via; 501-step motor; 502-powder cartridge; 601-a three-axis drive mechanism; 602-a carrier.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1 and 2 together, a powder weighing apparatus 100 according to an embodiment of the present disclosure is provided for quickly weighing a desired mass of powder according to a requirement.
The powder weighing apparatus 100 comprises a controller 101, and the controller 101 is mainly used for controlling the powder weighing apparatus to operate according to the acquired operation parameters. There are various ways to obtain the operating parameters, for example: may be for receiving operating parameters entered by a user via an input device (e.g., keyboard, interactive screen, etc.); or may be a remote server to obtain operating parameters. This is not limited in this application.
The controller 101 may be a single chip, an integrated circuit chip, or the like, and has signal processing and control capabilities. For example, the controller 101 may be a general-purpose processor, such as a Central Processing Unit (CPU); but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components.
In this embodiment, the Controller 101 may be a Programmable Logic Controller (PLC), a digital operation Controller with a microprocessor for automatic control, and may load the control instruction into a memory at any time for storage and execution. The programmable controller consists of functional units such as a CPU, an instruction and data memory, an input/output interface, a power supply, a digital-analog converter and the like.
The powder weighing apparatus 100 also includes a powder weighing mechanism 102. The powder weighing mechanism 102 is connected to the controller 101.
Referring to fig. 3-4 together, fig. 3 is a schematic structural view of a powder weighing mechanism according to an embodiment of the present application, and fig. 4 is a schematic sectional view of the powder weighing mechanism along a line a-a according to the embodiment of the present application. In this embodiment, the powder weighing mechanism 102 may include a fixing member 201, a first slider 202, a second slider 203, and a first motor 204.
The top surface of the fixing member 201 is provided with a groove 2011 towards the inside, the first slider 202 and the second slider 203 are arranged in the groove 2011, and a cavity 2012 is enclosed by the surfaces of the first slider 202 and the second slider 203 which are opposite to each other and the groove wall of the groove 2011.
The first motor 204 is connected to the first slider 202, and the first motor 204 is used for driving the first slider 202 to move along the extending direction of the groove 2011, so as to adjust the amount of the powder contained in the cavity 2012. The first slider 202 is driven by the first motor 204 to move in the extending direction of the groove 2011, that is, to move closer to or away from the second slider 203. When the first slider 202 approaches the second slider 203, the cavity 2012 formed by the first slider 202 and the second slider 203 and the groove wall is correspondingly reduced; when the first slider 202 moves away from the second slider 203, the formed cavity 2012 becomes correspondingly larger. The size of the cavity 2012 is corresponding to the powder amount of the powder, and the powder can be weighed by controlling the size of the cavity.
The controller 101 controls the first motor 204 to drive the first slider 202 to move for a certain distance, so as to control the size of the cavity 2012, and further complete weighing of the powder. Note that initial positions of the first slider 202 and the second slider 203 may be set in advance, and a correspondence table between the displacement distance of the first slider 202 and the mass of the powder at the initial positions may be stored in advance in the controller 101. The user only needs to input the mass to be weighed, and the controller 101 controls the first motor 204 to drive the first slider 202 to move by the corresponding displacement distance according to the corresponding relation table of the displacement distance and the powder mass, so as to complete the powder weighing.
The mass is equal to the density times the volume, and since the densities of different powders are different, when weighing, it is necessary to know the density of the powder to be weighed in addition to changing the size of the cavity, i.e. changing the volume of the cavity. In order to simplify the weighing process, in addition to the above method of weighing powder according to the correspondence table of displacement distance and powder mass, the powder may be weighed by combining an electronic balance to perform a trial weighing.
Specifically, when powder weighing is performed, test weighing is performed first. If the user needs to weigh 10g of powder, the user inputs a displacement distance first, and the controller 101 controls the first motor 204 to drive the first slide 202 to move a corresponding displacement distance, and then the cavity 2012 is filled. And taking the filled powder out of the cavity 2012, placing the powder in a test tube or a measuring cup, and weighing the powder by electronic level to obtain whether the mass of the powder filling the cavity 2012 is 10g or not under the current displacement distance. If the weight is 10g, weighing the powder by adopting the current displacement distance; if the mass is not 10g, the displacement distance of the first slide 202 is adjusted, and the trial weighing is performed until the mass of the powder filling the cavity 2012 is 10g, and the final weighing is performed.
It can be understood that the first slider 202 and the second slider 203 are tightly attached to the groove wall of the groove 2011, and no gap exists, so as to prevent the powder to be weighed from leaking out of the powder weighing mechanism 102 from the gap and affecting the weighing precision.
Optionally, the bottom of the cavity 2012 is provided with a first through hole 206, and after weighing is completed, the weighed powder leaks out of the first through hole 206, so that subsequent use is facilitated. Optionally, a retractable cover plate may be disposed at the first through hole 206, and when powder is weighed, the retractable cover plate is controlled to block the through hole, so that the powder does not leak out of the first through hole 206; when the weighing is completed, the control cover no longer blocks the through-hole, so that the weighed powder can escape from the first through-hole 206.
The powder weighing mechanism 102 may further include a second motor 205, the second motor 205 is connected to the second slider 203, and the second motor 205 is configured to drive the second slider 203 to move along the extending direction of the groove 2011 to block the first through hole 206 during weighing, so as to prevent powder from leaking out of the first through hole 206 during weighing; and when powder leakage is performed, the second slider 203 is driven to move reversely along the extending direction of the groove 2011 so as to expose the first through hole 206, and powder can be leaked from the first through hole 206 conveniently.
Optionally, the first motor 204 and the second motor 205 are servo motors. The servo motor can realize closed-loop control of position, speed and moment, has high running precision, can accurately control the displacement distance of the first sliding block 202 and the second sliding block 203, and realizes accurate powder weighing.
It should be noted that, in the powder weighing apparatus 100 according to the embodiment of the present application, after the displacement distance that the first slider 202 moves (i.e., the weight to be weighed) is determined, a plurality of powder portions of the weight can be quickly weighed.
Compared with the traditional method for weighing through the balance, the method has the advantages that the first motor is controlled to drive the first sliding block to move, the size of the cavity 2012 in the powder weighing mechanism is changed, the quantity of the powder which can be contained in the cavity 2012 is adjusted, the powder is weighed, the weighing efficiency is improved, and the labor cost is saved.
Optionally, the powder weighing apparatus 100 may further comprise a powder scraping mechanism 103. The powder scraping mechanism 103 is connected with the controller 101 and arranged above the powder weighing mechanism 102, and the powder scraping mechanism 103 is used for scraping powder into the cavity 2012 of the powder weighing mechanism 102. The powder weighing mechanism 102 performs powder weighing by changing the size of the cavity 2012, and in order to ensure the weighing accuracy, when the cavity 2012 needs to be filled with the powder to be weighed, the powder to be weighed is required to be weighed. By providing the powder scraping mechanism 103, the powder to be weighed can be scraped into the cavity 2012 of the powder weighing mechanism 102, and the cavity 2012 is ensured to be filled with the powder to be weighed.
Referring to fig. 5, fig. 5 is a schematic view of a powder scraping mechanism according to an embodiment of the present disclosure, in which the powder scraping mechanism 103 includes: a compact 401 and a correlation inductor 402.
An opening is arranged below the powder box 401, the powder box 401 is tightly attached to the top surface of the fixing part 201, a second through hole 403 is arranged above the powder box 401, and powder to be weighed enters the powder box 401 through the second through hole 403.
Wherein, the opening is rectangular. It is understood that the opening may have other shapes, such as square, circular, etc., and the present application is not limited thereto.
Specifically, the lower part of the powder container 401 is closely attached to the top surface of the fixing member 201, and the powder to be weighed is loaded in the powder container 401. Before weighing, the front end of the powder container 401 is disposed on the edge of the groove 2011 of the powder weighing mechanism 102. After the weighing is started, the controller 101 controls the motor of the powder scraping mechanism 103 to drive the powder box 401 to move, so that the opening below the powder box 401 is communicated with the cavity 2012, and the powder to be weighed in the powder box 401 is sent into the cavity 2012 of the powder weighing mechanism 102. To ensure that the powder fills the cavity 2012 of the powder weighing mechanism 102, the powder container 401 may be controlled to move back and forth several times (i.e., shake powder) so that the powder fills the cavity 2012.
To ensure that there is sufficient powder in compact 401, opposed inductors 402 may be provided on opposite sides of compact 401. The opposite-emitting inductor 402 is connected with the controller 101, the opposite-emitting inductor 402 is divided into an emitting end and a receiving end, the emitting end sends a laser signal, the receiving end receives the laser signal, and whether powder exists between the receiving end and the emitting end is judged according to the strength of the laser signal. Optionally, through holes may be respectively formed in both sides of the powder box 401, the two through holes are at the same horizontal height, and the through holes are plugged by using glass or other transparent materials. The transmitting end and the receiving end of the opposite-emitting inductor 402 are respectively arranged on two sides of the powder box 401, a laser signal transmitted by the transmitting end is injected into the powder box 401 through the through hole, and the receiving end receives the laser signal on the other side. When the height of the powder in the powder box 401 is higher than the transmitting end and the receiving end of the opposite-transmitting inductor 402, the laser signal transmitted by the transmitting end is blocked by the powder, and the receiving end cannot receive the laser signal, so that the powder amount in the powder box 401 is considered to be sufficient; when the height of the powder in the powder box 401 is lower than the transmitting end and the receiving end of the opposite-transmitting inductor 402, the laser signal transmitted by the transmitting end is not blocked by the powder, and the receiving end can receive the laser signal, so that the powder amount in the powder box 401 is insufficient.
Through adopting the correlation inductor to measure the powder volume in to the powder box, ensure to have sufficient powder volume in the powder box, and then guarantee scraping whitewashed back, can fill up the cavity 2012 of title powder mechanism to improve the accuracy that the powder weighed.
Optionally, the powder weighing apparatus 100 further comprises an alarm. When the opposite-jet sensor 402 detects that the powder amount in the powder box 401 is insufficient, the controller 101 controls the powder scraping mechanism 103 to stop working, and controls the alarm to send out an early warning signal to remind a worker to add powder into the powder box 401.
Optionally, the powder weighing apparatus 100 may also include a powder leakage mechanism 104. Referring to fig. 6, fig. 6 is a schematic view of a powder leaking mechanism according to an embodiment of the present disclosure, in which a powder leaking mechanism 104 is connected to a controller 101 and disposed above a powder scraping mechanism 103. The powder leaking mechanism 104 is connected with the powder scraping mechanism 103 through a guide pipe, powder is filled in the powder leaking mechanism 104, and the powder leaks into the powder scraping mechanism 103 through the guide pipe. Conduit may communicate with compact 401 through a second through hole above compact 401.
Alternatively, the powder leakage mechanism 104 may include a stepping motor 501 and a powder cartridge 502. Powder cartridge 502 communicates with powder compact 401 through a conduit. When the controller 101 receives the insufficient powder amount signal detected by the opposite-jet sensor 402, the stepping motor of the powder leakage mechanism 104 is controlled to work, so that the powder in the powder cylinder 502 is leaked into the powder box 401 of the powder scraping mechanism 103 through the conduit.
Optionally, the powder weighing apparatus 100 further comprises a powder containing mechanism 105. Referring to fig. 7, fig. 7 is a schematic view of a powder containing mechanism according to an embodiment of the present disclosure, in which the powder containing mechanism 105 includes a three-axis driving mechanism 601 and a carrier 602. The powder containing mechanism 105 is arranged below the powder weighing mechanism 102, the bearing 602 is arranged above the three-axis driving mechanism 601, the three-axis driving mechanism 601 is connected with the controller 101, and the three-axis driving mechanism 601 is used for driving the bearing 602 to move and containing weighed powder.
Specifically, the three-axis driving mechanism 601 may be 3 motors driving in the X/Y/Z direction for driving the carrier 602 to move in the three X/Y/Z axes. Several test tubes may be provided on the carrier 602 for receiving weighed amounts of powder. After the completion of one weighing, the three-axis driving mechanism 601 drives the carrier 602 to reach below the powder weighing mechanism 102, aligns the test tube with the first through hole 206, and receives the powder after the weighing. The powder weighing mechanism 102 constantly weighs, and every completion weighs the back once, triaxial actuating mechanism 601 drive holds carrier 602 and makes the triaxial removal, aligns first through-hole 206 with each test tube, connects greatly the powder of accomplishing the weighing.
Through setting up triaxial actuating mechanism and bearing the piece, can connect the powder after weighing greatly automatically, improve and call powder efficiency.
Optionally, the powder weighing apparatus 100 includes an interactive screen. The interactive screen is connected to the controller 101 and is used to display the operation of the powder weighing apparatus 100. The user can input the displacement distance of the first slider 202 according to the weighing requirement, and control the size of the cavity 2012 of the powder weighing mechanism 102. The user may also control the initial position of the respective structures through the interactive screen.
Referring to fig. 8 and fig. 8 are flowcharts illustrating a powder weighing method according to an embodiment of the present disclosure, which can be implemented by the controller 101 of the powder weighing apparatus 100. The powder weighing method can comprise the following steps:
step S801: acquiring a displacement distance;
step S802: and controlling the first motor to drive the first sliding block to move for a displacement distance so that the size of the cavity corresponds to the mass of the powder after the first sliding block moves.
The controller 101 acquires the displacement distance. The obtaining mode of the displacement distance can be various, and the displacement distance can be directly input by a user through an input device (such as a keyboard, an interactive screen and the like); the weight to be weighed can be input for the user, and then the controller 101 acquires the displacement distance according to a pre-stored relation table of the weight and the displacement distance; it may also be a displacement distance sent by the receiving remote server.
And controlling the first motor 204 to drive the first slider 202 to move the displacement distance according to the acquired displacement distance, so that the size of the cavity 2012 corresponds to the mass of the powder after the first slider 202 moves. It is to be understood that the powder weighing method provided in the present application corresponds to the interaction between the controller 101 and the powder weighing mechanism 102, and for brevity of the description, the same or similar parts may be referred to each other, and are not described herein again.
Referring to fig. 9 and fig. 9 are flowcharts illustrating another powder weighing method according to an embodiment of the present disclosure, which can be implemented by the controller 101 of the powder weighing apparatus 100 and applied to the powder weighing apparatus 100. The powder weighing method can comprise the following steps:
step S901: controlling the powder leaking mechanism to leak powder into the powder scraping mechanism;
step S902: controlling the powder scraping mechanism to scrape the powder into the powder weighing mechanism;
step S903: acquiring a displacement distance;
step S904: controlling the first motor to drive the first sliding block to move the displacement distance, so that after the first sliding block moves, the size of the cavity corresponds to the mass of the powder;
step S905: and after the powder weighing mechanism is filled with the powder, controlling the powder containing mechanism to contain the powder weighed by the powder weighing mechanism.
It should be noted that, when a user needs to weigh a plurality of powder portions by a certain weight, after the displacement distance is determined, the powder portions with the mass can be weighed by only continuously repeating the steps S904 and S905, so that the weighing efficiency is improved, and the labor cost is saved.
It is to be understood that the powder weighing method provided in the present application corresponds to the interaction between the aforementioned controller 101 and the mechanisms in the powder weighing apparatus 100, and for the sake of brevity, the same or similar parts may be referred to each other and will not be described again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A powder weighing apparatus, comprising:
a controller;
the powder weighing mechanism is connected with the controller and comprises a fixing piece, a first sliding block, a second sliding block and a first motor;
a groove is formed from the top surface of the fixing piece to the inside of the fixing piece, the first sliding block and the second sliding block are arranged in the groove, and a cavity is defined by the opposite surfaces of the first sliding block and the second sliding block and the groove wall of the groove;
the first motor is connected with the first sliding block and used for driving the first sliding block to move along the extending direction of the groove so as to adjust the quantity of the powder which can be contained in the cavity;
the bottom of the cavity is provided with a first through hole for leaking the weighed powder.
2. The powder weighing apparatus of claim 1, wherein the powder weighing mechanism further comprises a second motor connected to the second slider, the second motor being configured to drive the second slider to move in the extending direction of the groove to block the through hole when weighing is performed, and to drive the second slider to move in the opposite direction of the extending direction of the groove to expose the through hole when powder leakage is performed.
3. The powder weighing apparatus of claim 1, further comprising a powder scraping mechanism connected to the controller and disposed above the powder weighing mechanism, the powder scraping mechanism configured to scrape powder into a cavity of the powder weighing mechanism.
4. The powder weighing apparatus of claim 3, further comprising a powder leaking mechanism connected to the controller and disposed above the powder scraping mechanism;
the powder leaking mechanism is connected with the powder scraping mechanism through a guide pipe, the powder is filled in the powder leaking mechanism, and the powder leaks into the powder box of the powder scraping mechanism through the guide pipe.
5. The powder weighing apparatus of claim 4, wherein the powder scraping mechanism further comprises a powder compact and a correlation sensor;
an opening is arranged below the powder box, the powder box is tightly attached to the top surface of the fixing piece, a second through hole is arranged above the powder box, and the guide pipe is communicated with the powder box through the second through hole;
the correlation inductor is arranged on two opposite sides of the powder box and used for detecting the height of powder in the powder box.
6. The powder weighing apparatus of claim 5, further comprising an alarm connected to the controller for alerting when the powder in the powder container is below a predetermined level.
7. The powder weighing device of any one of claims 1-5, further comprising a powder holding mechanism, the powder holding mechanism comprising a three-axis drive mechanism and a carrier;
the powder containing mechanism is arranged below the powder weighing mechanism;
the bearing piece is arranged above the three-axis driving mechanism, the three-axis driving mechanism is connected with the controller, and the three-axis driving mechanism is used for driving the bearing piece to move and containing the weighed powder.
8. The powder weighing apparatus of claim 1, further comprising an interactive screen connected to the controller.
9. A powder weighing method applied to a controller of the powder weighing apparatus according to claims 1 to 7, comprising:
acquiring a displacement distance;
and controlling the first motor to drive the first sliding block to move the displacement distance, so that after the first sliding block moves, the size of the cavity corresponds to the mass of the powder.
10. The powder weighing method is applied to a controller of a powder weighing device, and is characterized in that the powder weighing device further comprises a powder leaking mechanism, a powder scraping mechanism, a powder weighing mechanism and a powder containing mechanism which are connected with the controller, the powder weighing mechanism comprises a first motor and a first sliding block, and the powder weighing method comprises the following steps:
controlling the powder leaking mechanism to leak powder into the powder scraping mechanism;
controlling the powder scraping mechanism to scrape the powder into the powder weighing mechanism;
acquiring a displacement distance;
controlling the first motor to drive the first sliding block to move the displacement distance, so that after the first sliding block moves, the size of the cavity corresponds to the mass of the powder;
and after the powder weighing mechanism is filled with the powder, controlling the powder containing mechanism to contain the powder weighed by the powder weighing mechanism.
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| CN202011011718.2A CN112113646A (en) | 2020-09-23 | 2020-09-23 | Powder weighing apparatus and powder weighing method |
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| CN202011011718.2A CN112113646A (en) | 2020-09-23 | 2020-09-23 | Powder weighing apparatus and powder weighing method |
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| CN109335631A (en) * | 2018-11-23 | 2019-02-15 | 中山华宏精密模具机械有限公司 | A kind of powder quantifies extraction element |
| CN110346020A (en) * | 2018-04-04 | 2019-10-18 | 广东科达洁能股份有限公司 | Powder metering equipment and automatic production line |
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| CN110793605A (en) * | 2019-11-28 | 2020-02-14 | 北京天仁道和新材料有限公司 | Weighing device and press |
| CN111238611A (en) * | 2020-01-15 | 2020-06-05 | 福建师范大学 | Laboratory solid powder ration is taken device |
| CN111618295A (en) * | 2020-06-04 | 2020-09-04 | 太原红日强磁材有限公司 | Positive displacement weighing and distributing device and distributing method thereof |
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| US20150246769A1 (en) * | 2014-03-03 | 2015-09-03 | Daniel David Pearlson | Automatic Apparatus for High Speed Precision Portioning of Granules By Weight |
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| CN110672188A (en) * | 2019-10-12 | 2020-01-10 | 吉林省农业科学院 | Solid weighing system of adjustable volume |
| CN110793605A (en) * | 2019-11-28 | 2020-02-14 | 北京天仁道和新材料有限公司 | Weighing device and press |
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