CN114838791A - High-precision warehousing raw material weighing machine for producing assembly type prefabricated parts - Google Patents

High-precision warehousing raw material weighing machine for producing assembly type prefabricated parts Download PDF

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Publication number
CN114838791A
CN114838791A CN202210348565.3A CN202210348565A CN114838791A CN 114838791 A CN114838791 A CN 114838791A CN 202210348565 A CN202210348565 A CN 202210348565A CN 114838791 A CN114838791 A CN 114838791A
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liquid
liquid tank
buoyancy
precision
raw material
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CN202210348565.3A
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CN114838791B (en
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杜德韩
卢健乐
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Zhejiang Construction Technology Co ltd
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Zhejiang Construction Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G7/00Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G01G7/02Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G5/00Weighing apparatus wherein the balancing is effected by fluid action
    • G01G5/003Weighing apparatus wherein the balancing is effected by fluid action load-cell construction or mountings

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  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
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Abstract

The application discloses a high-precision warehousing raw material weighing machine for producing assembly type prefabricated parts, which comprises a carrying plate; a buoyancy plate; a first liquid tank; a first magnetic member; a second magnetic member; the second magnetic part is an electromagnet for adjusting the current according to the weight of the raw materials; a first liquid changing device; the second liquid tank is connected with the first liquid changing device; the first electromagnetic valve enables the first liquid tank to have a first liquid changing state communicated with the second liquid tank and a first working mode that the first liquid tank and the second liquid tank are mutually sealed; a second liquid changing device; the third liquid tank is connected with the second liquid changing device; the second electromagnetic valve enables the first liquid tank to have a second liquid changing state communicated with the third liquid tank and a second working mode that the first liquid tank and the third liquid tank are sealed mutually; the first liquid tank and the second liquid tank are filled with a plurality of liquids which are different in density and layered with each other; an improved weighing accuracy is provided by reducing the influence of buoyancy on the resultant force.

Description

High-precision warehousing raw material weighing machine for producing assembly type prefabricated parts
Technical Field
The application relates to the field of weighing devices, in particular to a high-precision warehousing raw material weighing machine for producing assembled prefabricated parts.
Background
In the known technology, raw materials are placed on an object carrying plate, the object carrying plate can be subjected to gravity, the height of the object carrying plate is changed, the weighing mode is that the magnetic force of an electromagnet is utilized to stabilize the object carrying plate, then a heavy object is placed on the object carrying plate, the heavy object and the electromagnet return the object carrying plate to the original position through the magnetic force of the electromagnet, and the sum of the magnetic force and the gravity of the raw materials is judged through the current in the electromagnet;
however, this approach presents two problems: firstly, the loading plate can return to the original position only when the magnetic force is greater than the gravity, but the degree of the magnetic force greater than the gravity determines the speed of the loading plate returning to the original position, the weighing is accurate, the magnetic force is slightly greater than the gravity, the loading plate returns to the original position in the resultant force direction, but the resultant force is too small, the speed is very slow, and the weighing speed is very slow;
secondly, the degree that the magnetic force is greater than the gravity is increased, so that the weighing speed is high, but the increase of the degree that the magnetic force is greater than the gravity can cause the increase of the weighing error of the gravity;
therefore, the known technology cannot achieve high weighing speed and high degree precision.
Disclosure of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
To solve the technical problems mentioned in the background section above, some embodiments of the present application provide a high-precision warehousing stock weighing machine for producing fabricated prefabricated parts, comprising:
the loading plate is used for containing raw materials to be weighed; the buoyancy plate is connected with the loading plate and is placed in the liquid to be supported; the first liquid tank is used for placing liquid for supporting the buoyancy plate; the first magnetic part is arranged on the bottom surface of the interior of the first liquid tank; the second magnetic part is arranged below the buoyancy plate and matched with the first magnetic part, and the weight of the raw materials on the carrying plate is offset through magnetic force; the second magnetic part is an electromagnet for adjusting the current according to the weight of the raw materials; the high-precision warehousing raw material weighing machine for producing the assembled prefabricated parts further comprises: the first liquid changing device is arranged on the side surface of the first liquid tank; the second liquid tank is connected with the first liquid changing device; the first electromagnetic valve is arranged on the liquid changing device and used for controlling the opening and closing of the liquid changing device, so that the first liquid tank has a first liquid changing state communicated with the second liquid tank and a first working mode that the first liquid tank and the second liquid tank are mutually sealed; the second liquid changing device is arranged on the other side surface of the first liquid tank; the third liquid tank is connected with the second liquid changing device; the second electromagnetic valve is arranged on the liquid changing device and used for controlling the opening and closing of the liquid changing device, so that the first liquid tank has a second liquid changing state communicated with the third liquid tank and a second working mode that the first liquid tank and the third liquid tank are mutually sealed; the first liquid tank and the second liquid tank contain a plurality of liquids layered with each other with different densities.
Further, defining a bottom surface of the first liquid tank as a reference plane; the reference plane is perpendicular to the gravity direction; the projections of the first magnetic part and the second magnetic part on the reference plane are completely overlapped.
Furthermore, third magnetic parts are arranged on two side surfaces of the first liquid tank; fourth magnetic parts are arranged on two sides of the buoyancy plate; the projection of the fourth magnetic element on a plane perpendicular to the reference plane is entirely inside the projection profile of the third magnetic element on a plane perpendicular to the reference plane.
Further, the liquid in the second liquid tank is different from the liquid in the first liquid tank; the density of the liquid in the second liquid tank at the same height as that of the first liquid tank is larger than that of the first liquid tank; the third liquid tank is an empty liquid tank.
Furthermore, a plurality of first liquid changing devices are arranged; the plurality of first liquid changing devices are uniformly arranged in the direction from far away from the reference plane to close to the reference plane; the positions of the first liquid changing devices are all in one-to-one correspondence with the heights of the layered liquids in the first liquid tank.
Furthermore, a plurality of second liquid changing devices are arranged; the plurality of second liquid changing devices are uniformly arranged in the direction from far away from the reference plane to close to the reference plane; the positions of the second liquid changing devices are all in one-to-one correspondence with the heights of the layered liquids in the first liquid tank.
Furthermore, the first electromagnetic valve is provided with a plurality of first liquid changing devices which are respectively arranged on each first liquid changing device; the second electromagnetic valves are provided with a plurality of second liquid changing devices which are respectively arranged on each second liquid changing device.
Furthermore, a plurality of buoyancy adjusting pieces are arranged between the buoyancy plate and the loading plate; the volume of the buoyancy adjusting piece is far larger than that of the buoyancy plate; the buoyancy regulating piece is smaller in volume per unit height in the direction from the near to the far from the reference plane.
Furthermore, a connecting piece is arranged between the carrying plate and the buoyancy plate; a plurality of connecting pieces are arranged; the volume of the plurality of connecting pieces is larger than that of the floating plate.
Further, a first distance sensor is arranged below the buoyancy plate; a second distance sensor matched with the first distance sensor is arranged on the bottom surface of the first liquid tank; and an air cylinder which is arranged outside the first liquid tank and below the second magnetic part and is matched with the first distance sensor and the second distance sensor to change the position of the second magnetic part is arranged below the first liquid tank.
The beneficial effect of this application lies in: an improved weighing accuracy is provided by reducing the influence of buoyancy on the resultant force.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it.
Further, throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and that elements and elements are not necessarily drawn to scale.
In the drawings:
FIG. 1 is an overall schematic view of an embodiment according to the present application;
FIG. 2 is a schematic view of a first liquid tank according to the present invention;
FIG. 3 is a schematic view of the construction of the buoyancy regulating element of the present invention;
FIG. 4 is a schematic view of the inside of a first liquid tank, a second liquid tank and a third liquid tank in the present invention;
FIG. 5 is a schematic view of the interior of the first liquid tank and a part of the components in the invention;
FIG. 6 is a schematic view showing the structure of the interior and a part of the components of the second liquid tank in the present invention;
FIG. 7 is a schematic view of the interior and parts of the third liquid tank according to the present invention;
FIG. 8 is a schematic view of the first fluid exchange device and a portion of the surrounding parts in the present invention;
FIG. 9 is a schematic view of a second fluid exchange device and a portion of surrounding parts according to the present invention;
FIG. 10 is a schematic view of the liquid layers inside the first liquid tank, the second liquid tank and the third liquid tank in the present invention;
the reference signs are: the liquid loading device comprises a loading plate 100, a buoyancy plate 101, a first liquid tank 102, a first magnetic member 103, a second magnetic member 104, a first liquid changing device 105, a second liquid tank 106, a first electromagnetic valve 107, a second liquid changing device 108, a third liquid tank 109, a second electromagnetic valve 110, a third magnetic member 111, a fourth magnetic member 112, a buoyancy adjusting member 113, a connecting member 114, a first distance sensor 115, a second distance sensor 116, a cylinder 117, a first supporting plate 118, a first liquid changing pipe 119, a first water pump 120, a first water inlet end 121, a first water outlet end 122, a second liquid changing pipe 123, a second supporting plate 124, a third liquid changing pipe 125, a second water pump 126, a second water inlet end 127, a second water outlet end 128, a fourth liquid changing pipe 129, a supporting foot disc 130 and a third supporting plate 131.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
It should be noted that, for the convenience of description, only the parts relevant to the present application are shown in the drawings. The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
It is noted that references to "a", "an", and "the" modifications in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that "one or more" may be used unless the context clearly dictates otherwise.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments
As shown in fig. 1-2 and 4-5, the high-precision warehousing raw material weighing machine for producing the prefabricated parts comprises: the device comprises a loading plate 100, a buoyancy plate 101, a first liquid tank 102, a first magnetic part 103, a second magnetic part 104, a first liquid changing device 105, a second liquid tank 106, an electromagnetic valve 107, a second liquid changing device 108, a third liquid tank 109 and a second electromagnetic valve 110; the weighing device is used for containing raw materials to be weighed; a buoyancy plate 101 connected to the loading plate 100 and supported by being placed in the liquid; a first liquid tank 102 for holding a liquid for supporting the buoyancy plate 101; a first magnetic member 103 mounted on the bottom surface inside the first liquid tank 102; the second magnetic part 104 is arranged below the buoyancy plate 101 and matched with the first magnetic part 103, and the weight of the raw material on the loading plate 100 is offset through magnetic force; the second magnetic part 104 is an electromagnet for adjusting the current according to the weight of the raw material; the high-precision warehousing raw material weighing machine for producing the assembled prefabricated parts further comprises: a first liquid changing device 105 provided on a side surface of the first liquid tank 102; a second liquid tank 106 connected to the first liquid changing device 105; a first solenoid valve 107 mounted on the liquid exchange device to control opening and closing of the liquid exchange device, so that the first liquid tank 102 has a first liquid exchange state communicated with the second liquid tank 106 and a first operation mode in which the first liquid tank 102 and the second liquid tank 106 are sealed with each other; the second liquid changing device 108 is arranged on the other side surface of the first liquid tank 102; a third liquid tank 109 connected to the second liquid changing device 108; a second solenoid valve 110 mounted on the liquid changer to control the liquid changer to be opened and closed, so that the first liquid tank 102 has a second liquid changing state communicated with the third liquid tank 109 and a second operation mode in which the first liquid tank 102 and the third liquid tank 109 are sealed from each other; the first liquid tank 102 and the second liquid tank 106 contain a plurality of liquids with different densities and layered with each other;
by placing liquids with different concentrations in the first liquid tank 102 and the second liquid tank 106, firstly, the liquids in the first liquid tank 102 are layered, the densities of the liquids are different at different heights, then after the raw materials are placed on the loading plate 100, the loading plate 100 is lowered to the bottommost surface of the first liquid tank 102, the buoyancy of the lowest layer of liquid is applied to the loading plate 100, the buoyancy is F1 and is the maximum value of the buoyancy, then the first magnetic element 103 is electrified, the current in the first magnetic element 103 is gradually increased, the magnetic force of the first magnetic element 103 is increased, the direction of the magnetic field inside the first magnetic element 103 and the second magnetic element 104 is the same, the magnetic force of the second magnetic element 104 is applied, the magnetic force is defined as Fx, and the magnetic force Fx increases along with the increase of the current;
when the Fx + F1 is equal to the sum of the dead weights of the parts such as the raw material on the carrying board 100, the carrying board 100 and the like, the parts are static according to Newton's law;
when the Fx + F1 is greater than the sum of the dead weights of the raw material on the object carrying plate 100 and the parts such as the object carrying plate 100, the object carrying plate 100 can move upwards and can have acceleration to accelerate to rise, when the buoyancy plate 101 reaches the penultimate liquid layer from the lowermost liquid layer, the buoyancy force is reduced, the buoyancy force received by the buoyancy plate 101 in the penultimate liquid layer is defined as F2, then F2 is smaller than F1, which means that Fx + F2 is smaller than the dead weights of the raw material on the object carrying plate 100 and the parts such as the object carrying plate 100, and then the magnitude of the current on the first magnetic element 103 needs to be increased again, so that the Fx received by the first magnetic element 103 can be increased; when the sum of the dead weights of the raw materials on the object carrying plate 100 and the parts such as the object carrying plate 100 is increased to be larger than the Fx + F2, the object carrying plate 100 can move upwards, and then the buoyancy plate 101 can reach the liquid at the last third layer from the liquid at the last second layer, the sum of the dead weights of the parts such as the raw materials on the object carrying plate 100 and the object carrying plate 100 can reappear, the Fx + F3 is smaller than the sum of the dead weights of the parts such as the raw materials on the object carrying plate 100 and the object carrying plate 100, the magnitude of the current on the first magnetic element 103 needs to be increased again, and the numerical values of F4, F5 and the like can appear in a reciprocating manner, wherein F3, F4 and F5 are defined as the buoyancy of the liquid at the last second layer;
the control of the magnitude of Fx can be more accurate by the above method, and the current magnitude of the first magnetic part 103 is increased for multiple times by the manner of buoyancy change, and finally the weight of the raw material is obtained by the magnitude of the current;
the concrete further description is as follows: if only one liquid is used, the time required for returning the buoyancy plate 101 to the original position is long, or weighing is not accurate, meanwhile, the buoyancy plate 101 and the object carrying plate 100 are supported by other parts, only one liquid is used, the displacement can be changed, the buoyancy can also be changed, the size of the change of the sub-buoyancy is the size of the change of the displacement, and the change is not obvious; therefore, in the process that the buoyancy plate 101 returns to the original position, the directions of the buoyancy and the electromagnetic force are consistent, the sum of the buoyancy and the electromagnetic force is larger than the weight of the raw material at the beginning, if only one liquid is used, the buoyancy change is not obvious, the current cannot be adjusted for many times, the electromagnetic force is always larger than the weight of the raw material, the weighing is inaccurate, the buoyancy change is obvious, the electromagnetic force needs to be adjusted for many times, the influence of the buoyancy of the liquid on the resultant force of the upward movement of the buoyancy plate 101 is reduced, the buoyancy is small during the last adjustment, the resultant force is more close to the electromagnetic force, the error is better reduced, and the weighing accuracy is improved.
As shown in fig. 1-2, 4-5: further, a bottom surface of the first liquid tank 102 is defined as a reference plane; the reference plane is perpendicular to the gravity direction; the projections of the first magnetic member 103 and the second magnetic member 104 on the reference plane completely overlap.
As shown in fig. 5: further, third magnetic members 111 are arranged on two side surfaces of the first liquid tank 102; fourth magnetic parts 112 are arranged on two sides of the buoyancy plate 101; the projection of the fourth magnetic element 112 on a plane perpendicular to the reference plane is completely inside the projection profile of the third magnetic element 111 on a plane perpendicular to the reference plane;
through the arrangement of the third magnetic member 111 and the fourth magnetic member 112, the floating plate 101 can be kept in a horizontal position, i.e. parallel to the reference plane, without inclination, so as to better weigh.
As shown in fig. 5, 10: further, the liquid in the second liquid tank 106 is different from the liquid in the first liquid tank 102; the density of the liquid in the second liquid tank 106 at the same height as the first liquid tank 102 is greater for the second liquid tank 106 than for the first liquid tank 102; the third liquid tank 109 is an empty liquid tank;
when in use, the liquid in the first liquid tank 102 is transferred to the third liquid tank 109, and the sum is transferred to the first liquid tank 102 from the liquid in the second liquid tank 106, so that the liquid in the first liquid tank 102 is changed, the density of the liquid in the first liquid tank 102 is changed, the liquid is replaced when facing raw materials with different weight degrees, and the precision and the speed of the weight are adjusted and changed.
As shown in fig. 6 and 8: further, a plurality of first liquid changing devices 105 are provided; the plurality of first liquid changing devices 105 are uniformly arranged in a direction from far away from the reference plane to close to the reference plane; the positions of the plurality of first liquid changing devices 105 are all arranged in one-to-one correspondence with the heights of the plurality of layered liquids in the first liquid tank 102.
As shown in fig. 7 and 9: further, a plurality of second liquid changing devices 108 are provided; the plurality of second liquid changing devices 108 are uniformly arranged in a direction from far away from the reference plane to close to the reference plane; the positions of the second liquid changing devices 108 are all arranged in one-to-one correspondence with the heights of the layered liquids in the first liquid tank 102.
As shown in fig. 5: further, the first electromagnetic valve 107 is provided with a plurality of first liquid changing devices 105 which are respectively arranged on each first liquid changing device; the second electromagnetic valve 110 is provided with a plurality of second liquid changing devices 108 respectively arranged on each second liquid changing device.
Through the arrangement of the plurality of first liquid changing devices 105, the plurality of second liquid changing devices 108 and the plurality of first electromagnetic valves 107 and the second electromagnetic valves 110, the liquid in any one layer of the first liquid tank 102 can be changed, so that the buoyancy can be better changed, and the weighing precision can be adjusted.
As shown in fig. 1-3: further, a plurality of buoyancy adjusting pieces 113 are arranged between the buoyancy plate 101 and the loading plate 100; the volume of the buoyancy adjusting member 113 is much larger than that of the buoyancy plate 101; the volume of the buoyancy regulating member 113 per unit height is smaller in the direction from the reference plane to the reference plane;
through the setting of a plurality of buoyancy regulating parts 113, can make buoyancy board 101 and the displacement of buoyancy regulating part 113 in liquid change more obvious to make buoyancy further reduce the influence of electromagnetic force, make the electromagnetic force more be close to the weight of raw materials, further improve the accurate degree of weighing.
As shown in fig. 3: further, a connecting piece 114 is arranged between the loading plate 100 and the floating plate 101; the connecting member 114 is provided in plurality; the volume of the plurality of connectors 114 is greater than the volume of the buoyancy plate 101;
the plurality of connecting members 114 are subjected to buoyancy, and the weighing accuracy is improved through the change of the buoyancy.
As shown in fig. 5: further, a first distance sensor 115 is installed below the buoyancy plate 101; a second distance sensor 116 matched with the first distance sensor 115 is arranged on the bottom surface of the first liquid tank 102; an air cylinder 117 which is arranged outside the first liquid tank 102 and below the second magnetic part 104 and is matched with the first distance sensor 115 and the second distance sensor 116 to change the position of the second magnetic part 104;
the distance between the first magnetic member 103 and the second magnetic member 104 is kept consistent by the first distance sensor 115 and the second distance sensor 116, and since the magnetic force attenuates with the change of the distance, which is a technical problem known in the prior art, by keeping the distance between the first magnetic member 103 and the second magnetic member 104 consistent, the magnetic force generated by the current of the first magnetic member 103 can be kept to enable the upward force applied to the second magnetic member 104 to be closer to the magnetic force generated by the current, thereby further improving the weighing accuracy.
As shown in fig. 5-9: specifically, the present disclosure fixedly provides a first support plate 118 on a side of the first liquid tank 102; the first support plate 118 is used for supporting the first solenoid valve 107 and fixing the first solenoid valve 107; the plurality of first liquid changing devices 105 are converged into the first liquid changing pipe 119; the first change liquid pipe 119 is integrally formed with the plurality of first changing means; a first water pump 120 is fixedly arranged at the end part of the first liquid changing pipe 119; the first water pump 120 is provided with a first water inlet end 121 and a first water outlet end 122, the first water inlet end 121 is connected with the second liquid changing tank, and the first water inlet end 121 is fixedly connected with the first liquid changing pipe 119; a second liquid change pipe 123 is fixedly connected between the second liquid tank 106 and the first water inlet end 121 of the first water pump 120; one end of the second liquid changing pipe 123 is fixed on the first water pump 120, and the other end is fixedly installed at the bottom of the second liquid changing tank.
As shown in fig. 5-9: specifically, the present disclosure is fixedly provided with a second support plate 124 on the side of the first liquid tank 102; the second support plate 124 is used for supporting the second solenoid valve 110 and fixing the second solenoid valve 110; the second liquid changing devices 108 are converged into the third liquid changing pipe 125; the third change liquid pipe 125 is integrally formed with the plurality of second changing means; a second water pump 126 is fixedly arranged at the end part of the third liquid changing pipe 125; the second water pump 126 is provided with a second water inlet end 127 and a second water outlet end 128, the second water inlet end 127 is connected with the third liquid changing box, and the second water inlet end 127 is fixedly connected with the second liquid changing pipe 123; a fourth liquid-changing pipe 129 is fixedly connected between the third liquid tank 109 and the second water inlet end 127 of the second water pump 126; one end of the fourth liquid changing pipe 129 is fixed on the second water pump 126, and the other end is fixedly arranged at the bottom of the third liquid changing tank.
As shown in fig. 5-9: specifically, a plurality of first liquid changing devices 105 and a plurality of second liquid changing devices 108 are communicated with the first liquid tank 102 and distributed from top to bottom, and the lowermost first liquid changing device 105 and the lowermost second liquid changing device 108 are communicated with the bottom of the first liquid tank 102; the bottom parts of the first liquid tank 102, the second liquid tank 106 and the third liquid tank 109 are fixedly provided with supporting foot plates 130; a third supporting plate 131 is fixed below the supporting foot plate 130 and used for providing a plane for the supporting foot plate 130, so that the supporting is stable, and the air cylinder 117 is fixedly arranged at the bottom of the first liquid tank 102; the buoyancy adjusting member 113 is fixedly installed on the connection member 114.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept as defined above. For example, the above features and (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure are mutually replaced to form the technical solution.

Claims (10)

1. The utility model provides a production assembled prefabricated component's high accuracy raw materials for storage weighing machine, includes:
the loading plate is used for containing raw materials to be weighed;
the buoyancy plate is connected with the loading plate and is placed in the liquid to be supported;
the first liquid tank is used for placing liquid for supporting the buoyancy plate;
the first magnetic part is arranged on the bottom surface of the interior of the first liquid tank;
the second magnetic part is arranged below the buoyancy plate and matched with the first magnetic part, and the weight of the raw materials on the loading plate is offset through magnetic force;
the second magnetic part is an electromagnet for adjusting the current according to the weight of the raw materials;
the method is characterized in that:
the high-precision warehousing raw material weighing machine for producing the assembled prefabricated parts further comprises:
the first liquid changing device is arranged on the side surface of the first liquid tank;
the second liquid tank is connected with the first liquid changing device;
the first electromagnetic valve is arranged on the liquid changing device and used for controlling the opening and closing of the liquid changing device, so that the first liquid tank has a first liquid changing state communicated with the second liquid tank and a first working mode that the first liquid tank and the second liquid tank are mutually sealed;
the second liquid changing device is arranged on the other side surface of the first liquid tank;
the third liquid tank is connected with the second liquid changing device;
the second electromagnetic valve is arranged on the liquid changing device and used for controlling the opening and closing of the liquid changing device, so that the first liquid tank has a second liquid changing state communicated with the third liquid tank and a second working mode that the first liquid tank and the third liquid tank are mutually sealed;
the first liquid tank and the second liquid tank contain a plurality of liquids layered with each other with different densities.
2. The high-precision warehousing raw material weighing machine for producing the fabricated prefabricated parts according to claim 1, characterized in that:
defining a bottom surface of the first liquid tank as a reference plane;
the reference plane is perpendicular to the gravity direction;
the projections of the first magnetic part and the second magnetic part on the reference plane are completely overlapped.
3. The high-precision warehousing raw material weighing machine for producing the fabricated prefabricated parts according to claim 2, characterized in that:
the two side surfaces of the first liquid tank are provided with third magnetic parts;
fourth magnetic parts are arranged on two sides of the buoyancy plate;
the projection of the fourth magnetic element on a plane perpendicular to the reference plane is entirely inside the projection profile of the third magnetic element on a plane perpendicular to the reference plane.
4. The high-precision warehousing raw material weighing machine for producing the fabricated prefabricated parts according to claim 3, characterized in that:
the liquid in the second liquid tank is different from the liquid in the first liquid tank;
the density of the liquid in the second liquid tank at the same height as that of the first liquid tank is larger than that of the first liquid tank;
the third liquid tank is an empty liquid tank.
5. The high-precision warehousing raw material weighing machine for producing the fabricated prefabricated parts according to claim 4, characterized in that:
a plurality of first liquid changing devices are arranged;
the plurality of first liquid changing devices are uniformly arranged in the direction from far away from the reference plane to close to the reference plane;
the positions of the first liquid changing devices are all in one-to-one correspondence with the heights of the layered liquids in the first liquid tank.
6. The high-precision warehousing raw material weighing machine for producing the fabricated prefabricated parts according to claim 4 or 5, characterized in that:
a plurality of second liquid changing devices are arranged;
the plurality of second liquid changing devices are uniformly arranged in the direction from far away from the reference plane to close to the reference plane;
the positions of the second liquid changing devices are all in one-to-one correspondence with the heights of the layered liquids in the first liquid tank.
7. The high-precision warehousing raw material weighing machine for producing the fabricated prefabricated parts according to claim 6, characterized in that:
the first electromagnetic valves are provided with a plurality of first liquid changing devices which are respectively arranged on each first liquid changing device;
the second electromagnetic valves are provided with a plurality of second liquid changing devices which are respectively arranged on each second liquid changing device.
8. The high-precision warehousing raw material weighing machine for producing the fabricated prefabricated parts as claimed in claims 2 to 5, wherein:
a plurality of buoyancy adjusting pieces are arranged between the buoyancy plate and the loading plate;
the volume of the buoyancy adjusting piece is far larger than that of the buoyancy plate;
the buoyancy regulating piece is smaller in volume per unit height in the direction from the near to the far from the reference plane.
9. The high-precision warehousing raw material weighing machine for producing the assembly type prefabricated parts according to claim 8, characterized in that:
a connecting piece is arranged between the carrying plate and the buoyancy plate;
the number of the connecting pieces is multiple;
the volume of the plurality of connecting pieces is larger than that of the floating plate.
10. The high-precision warehousing raw material weighing machine for producing the fabricated prefabricated parts according to claim 8, characterized in that:
a first distance sensor is arranged below the buoyancy plate;
a second distance sensor matched with the first distance sensor is arranged on the bottom surface of the first liquid tank;
and an air cylinder which is arranged outside the first liquid tank and below the second magnetic part and is matched with the first distance sensor and the second distance sensor to change the position of the second magnetic part is arranged below the first liquid tank.
CN202210348565.3A 2022-04-01 2022-04-01 High-precision warehousing raw material weighing machine for producing prefabricated parts Active CN114838791B (en)

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CN113063540A (en) * 2021-02-08 2021-07-02 于孟今 Pressure sensor based on magnetic liquid
CN113624309A (en) * 2021-08-16 2021-11-09 江苏大学 Magnetic suspension weighing system and control method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6718832B1 (en) * 2000-09-19 2004-04-13 John C. Hay, Jr. Method and apparatus for measuring physical properties of matter
CN2816762Y (en) * 2005-04-18 2006-09-13 梅梁 Magnetic balancer
CN102645257A (en) * 2011-02-22 2012-08-22 昆山市创新科技检测仪器有限公司 Weight measuring device implemented by using buoyancy method
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CN113624309A (en) * 2021-08-16 2021-11-09 江苏大学 Magnetic suspension weighing system and control method thereof

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Denomination of invention: High precision warehousing raw material weighing machine for producing prefabricated components

Effective date of registration: 20231009

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