CN221350254U - Powder metering scale structure capable of discharging automatically - Google Patents

Abstract

The utility model relates to the technical field of weighing scales and discloses a powder weighing scale structure capable of discharging materials. This can be from unloading powder measurement scale structure includes: the powder storage bin comprises a bottom plate, wherein a supporting plate is fixedly arranged above the bottom plate, a receiving plate is fixedly arranged above the supporting plate, a piezoresistive sensor is fixedly arranged above the receiving plate, a connecting ring is movably arranged above the piezoresistive sensor, a powder storage bin is installed in the center of the connecting ring in a penetrating mode, after weighing is completed through the arrangement of the fixing ring, an eccentric block can be driven to rotate through a vibrating motor, the outer side face of the eccentric block is enabled to be in contact with the bottom face of the fixing ring, and as the distance between the outer side face of the eccentric block and the rotating axis of the eccentric block is different, the eccentric block can drive the powder storage bin to do up-and-down reciprocating motion through the fixing ring, so that the powder storage bin vibrates, and powder attached to the inner wall of the powder storage bin falls down through inertia so as to avoid the powder from being attached to the inner wall of the powder storage bin.

Description

Powder metering scale structure capable of discharging automatically

Technical Field

The utility model relates to the technical field of weighing scales, in particular to a powder weighing scale structure capable of discharging materials.

Background

The existing electronic scale adopts a weighing mode that analog voltage which is output by a sensor and is in direct proportion to the weight of a weighed object is filtered by a filter, interference signals and noise are converted into digital quantity by an analog-to-digital converter, and then the digital quantity is displayed in a quality and amount mode by a digital display through pulse counting and digital display technology, so that different powders are required to be weighed and mixed when the composite powder proportioning is carried out.

The existing references are: CN2798060Y, which discloses a powder material weighing scale, the weighing scale has a sealed shell, a screw scale is arranged in the shell, the screw scale comprises a shell arranged in the shell, a screw propulsion device, the screw propulsion device is composed of a screw blade and a driving mechanism connected with the screw blade, wherein the screw blade is arranged in the shell; the shell is provided with a first feed inlet and a first discharge outlet, and the outer end of the shell is provided with a load sensor; the shell is provided with a second feeding hole and a second discharging hole corresponding to the first feeding hole and the first discharging hole which are formed in the shell. The powder material weighing scale of the utility model accommodates the spiral scale body in a shell, so that the pressure change does not influence the weighing of the spiral scale; a spiral propelling device is arranged in the shell, so that powder materials falling in the shell can be effectively cleaned. The utility model has simple structure, strong reliability, easy arrangement of the transformation of the prior equipment and very wide usability.

Because of the self characteristics of the powdery objects, the powder can possibly have bridging and caking phenomena, and can block a discharge hole of the weighing scale, and the powder can be adhered to the surface of the weighing scale, so that the weighing scale needs to be cleaned before being used subsequently, the subsequent use of the weighing scale is inconvenient, and the accurate proportioning of the composite powder can be influenced.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a self-blanking powder metering scale structure, which has the advantages of avoiding powder blockage, cleaning powder attached to the surface of the metering scale and the like, and solves the technical problems.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: a powder metering scale structure capable of self-discharging, comprising: the device comprises a bottom plate, wherein a supporting plate is fixedly arranged above the bottom plate, a bearing plate is fixedly arranged above the supporting plate, a piezoresistive sensor is fixedly arranged above the bearing plate, a connecting ring is movably arranged above the piezoresistive sensor, a powder storage bin is fixedly inserted in the center of the connecting ring, a fixed ring is fixedly inserted in the outer side of the powder storage bin, a vibrating motor is fixedly embedded in the supporting plate, an eccentric block is fixedly inserted in a rotating shaft of the vibrating motor, a connecting pipe is fixedly arranged below the powder storage bin, an inclined pipe is fixedly arranged below the connecting pipe, a bearing ring is fixedly inserted in the outer side of the connecting pipe, a connecting frame is fixedly arranged below the bearing ring, a discharging motor is fixedly inserted in the center of the connecting frame, a connecting shaft is fixedly inserted in the upper side of the discharging motor, a packing auger is fixedly arranged in the outer side of the inclined pipe, a connecting plate is fixedly arranged on the front side of the connecting plate, and a sealing cover is fixedly arranged on the front side of the pneumatic piston; the sealing cover can control powder to be discharged.

As the preferable technical scheme of the utility model, the supporting plate is symmetrically arranged at the front end and the rear end of the bottom plate by taking the center of the bottom plate as a reference, and is fixedly arranged at the right end center of the bottom plate, and the bearing plate is fixedly connected with the bottom plate through the supporting plate; the supporting plate can play a supporting role on the bearing plate.

As the preferable technical scheme of the utility model, the connecting ring is of an annular structure, the outer side of the connecting ring is provided with a cross-shaped bulge structure by taking the center of the connecting ring as a reference, the piezoresistive sensors are arranged above the bearing plate in a cross shape by taking the center of the connecting ring as a reference, and the top ends of the piezoresistive sensors are contacted with the bottom surface of the bulge structure of the connecting ring; the piezoresistive sensor can be convenient for weighing powder.

As the preferable technical scheme of the utility model, the vibration motor is arranged in the supporting plates on the front side and the rear side of the bottom plate in a front-rear mirror symmetry way by taking the center of the powder storage bin as a reference, the vibration motor is a stepping motor, the initial angle of the eccentric block is vertical downward, the lower end of the powder storage bin is of a conical structure, the inner wall of the powder storage bin is provided with a polytetrafluoroethylene coating, and the polytetrafluoroethylene coating arranged on the inner wall of the powder storage bin can enable powder to be difficult to adhere to the inner wall of the powder storage bin.

As a preferable technical scheme of the utility model, the discharging motor is fixedly connected with the connecting pipe through the bearing ring, the connecting frame and the connecting pipe, and the axle center of the connecting shaft and the axle center of the connecting pipe are in the same straight line; the discharging motor can drive the connecting shaft to rotate.

As the preferable technical scheme of the utility model, the connecting shaft vertically penetrates through the inclined tube, and extends upwards to the interior of the powder storage bin, and the auger is in rotary connection with the discharging motor through the connecting shaft; the auger can drive the powder to move.

As a preferable technical scheme of the utility model, the pneumatic piston is symmetrically arranged on the front side of the connecting plate by taking the center of the connecting plate as a reference, the left end of the sealing cover is embedded with the inner wall of the inclined tube, the sealing cover is movably connected with the inclined tube through the pneumatic piston, and the connecting tube and the inclined tube are made of polytetrafluoroethylene; the pneumatic piston can drive the sealing cover to move.

Compared with the prior art, the utility model provides a powder metering scale structure capable of discharging materials automatically, which has the following beneficial effects:

1. According to the utility model, through the arrangement of the fixed ring, the vibration motor is a stepping motor, so that the eccentric block can be kept in a state that the tip end is downward when not rotated, the eccentric block is prevented from influencing the weighing of the piezoresistive sensor, the eccentric block can be driven to rotate through the vibration motor after the weighing is completed, the outer side surface of the eccentric block is contacted with the bottom surface of the fixed ring, and the eccentric block can drive the powder storage bin to reciprocate up and down through the fixed ring due to the different distances between the outer side surface of the eccentric block and the rotating axis of the eccentric block, so that the powder storage bin vibrates, and the powder attached to the inner wall of the powder storage bin falls through inertia, so that the powder is prevented from being attached to the inner wall of the powder storage bin.

2. According to the utility model, the position between the discharging motor and the inclined tube as well as the connecting tube is kept fixed by the arrangement of the receiving ring and the connecting frame, the discharging motor is fixedly connected with the connecting shaft, and the auger can be driven to rotate through the connecting shaft when the discharging motor rotates.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the connection structure of the bottom plate and the receiving plate according to the present utility model;

FIG. 3 is a schematic view of the connection structure of the fixed ring and the eccentric block of the present utility model;

FIG. 4 is a schematic cross-sectional view of a connecting tube and a chute according to the present utility model;

Wherein: 1. a bottom plate; 11. a support plate; 12. a receiving plate; 13. a piezoresistive sensor; 14. a connecting ring; 15. a powder storage bin; 16. a fixing ring; 17. a vibration motor; 18. an eccentric block; 2. a connecting pipe; 21. a chute; 22. a receiving ring; 23. a connecting frame; 24. a discharging motor; 25. a connecting shaft; 26. an auger; 27. a connecting plate; 28. a pneumatic piston; 29. and (5) sealing the cover.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 4, in this embodiment, a self-discharging powder weighing scale structure includes: the base plate 1, the top fixed mounting of base plate 1 has backup pad 11, and the top fixed mounting of backup pad 11 has the board 12 that accepts, and the top fixed mounting of board 12 has piezoresistive sensor 13, and the top movable mounting of piezoresistive sensor 13 has go-between 14, and powder storehouse 15 is installed to the center interlude of go-between 14, and the outside interlude of powder storehouse 15 installs solid fixed ring 16, and vibrating motor 17 is installed to the inside gomphosis of backup pad 11, and interlude installs eccentric block 18 in vibrating motor 17's the pivot.

The supporting plate 11 is symmetrically installed at the front end and the rear end of the bottom plate 1 around the center of the bottom plate 1, the supporting plate 11 is fixedly installed at the center of the right end of the bottom plate 1, and the bearing plate 12 is fixedly connected with the bottom plate 1 through the supporting plate 11.

The connecting ring 14 is of an annular structure, the outer side of the connecting ring 14 is provided with a cross-shaped protruding structure by taking the center of the connecting ring 14 as a reference, the piezoresistive sensors 13 are installed above the bearing plate 12 in a group of cross shapes by taking the center of the connecting ring 14 as a reference, and the top ends of the piezoresistive sensors 13 are in contact with the bottom surface of the protruding structure of the connecting ring 14.

The vibration motor 17 is arranged inside the supporting plate 11 on the front side and the rear side of the bottom plate 1 in a front-rear mirror symmetry mode by taking the center of the powder storage bin 15 as a reference, the vibration motor 17 is a stepping motor, the initial angle of the eccentric block 18 is vertical downward, the lower end of the powder storage bin 15 is of a conical structure, and the inner wall of the powder storage bin 15 is provided with a polytetrafluoroethylene coating.

Specifically, the bottom plate 1 can play a supporting role on the supporting plate 11 and increase an integral supporting substrate, the supporting plate 11 can fix the relative position between the bearing plate 12 and the bottom plate 1, the type of the piezoresistive sensor 13 is an MPXV7002 micro-differential pressure sensor, the gravity of powder in the powder storage bin 15 can be transmitted to the piezoresistive sensor 13 through the connecting ring 14 to cause the strain on the film of the piezoresistive sensor 13 to change, the voltage output of the film is changed, the quality of the object can be obtained through amplifying and processing the voltage, the powder storage bin 15 can bear the powder, the vibrating motor 17 can drive the eccentric block 18 to rotate, and the eccentric block 18 can enable the powder storage bin 15 to reciprocate up and down through the fixing ring 16 during rotation so as to avoid the powder from being attached to the surface of the powder storage bin 15.

The below fixed mounting of powder warehouse 15 has connecting pipe 2, and the below fixed mounting of connecting pipe 2 has inclined tube 21, and the outside of connecting pipe 2 alternates and installs and accept ring 22, and accept the below fixed mounting of ring 22 and have link 23, and the center of link 23 alternates and installs the unloading motor 24, and the top of unloading motor 24 alternates and install connecting axle 25, and the outside fixed mounting of connecting axle 25 has auger 26, and the outside fixed mounting of inclined tube 21 has connecting plate 27, and the front side fixed mounting of connecting plate 27 has pneumatic piston 28, and the front side fixed mounting of pneumatic piston 28 has closing cap 29.

The discharging motor 24 is fixedly connected with the connecting pipe 2 through the bearing ring 22, the connecting frame 23, and the axis of the connecting shaft 25 and the axis of the connecting pipe 2 are in the same straight line.

The connecting shaft 25 vertically penetrates through the inclined tube 21, the connecting shaft 25 extends upwards to the interior of the powder storage bin 15, and the auger 26 is in rotary connection with the discharging motor 24 through the connecting shaft 25.

The pneumatic piston 28 is symmetrically arranged on the front side of the connecting plate 27 by taking the center of the connecting plate 27 as a reference, the left end of the sealing cover 29 is embedded with the inner wall of the inclined tube 21, the sealing cover 29 is movably connected with the inclined tube 21 through the pneumatic piston 28, and the connecting tube 2 and the inclined tube 21 are made of polytetrafluoroethylene.

Specifically, the connecting pipe 2 can fix the relative position between the discharging motor 24 and the powder storage bin 15 through the bearing ring 22 and the connecting frame 23, the inclined tube 21 can be convenient for discharge the powder, the discharging motor 24 can drive the auger 26 to rotate through the connecting shaft 25, as the upper end of the auger 26 is positioned in the powder storage bin 15 and the bottom end of the powder storage bin 15 is of a conical structure, powder can be contacted with the auger 26 under the guidance of the conical structure of the powder storage bin 15 and enter the connecting pipe 2 from the lower end of the powder storage bin 15 under the driving of the auger 26, the connecting plate 27 can fix the relative position between the pneumatic piston 28 and the inclined tube 21, the pneumatic piston 28 can drive the sealing cover 29 to move, the position relationship between the sealing cover 29 and the lower end of the inclined tube 21 is controlled, and the sealing cover 29 can prevent the powder from being discharged when being embedded with the lower end of the inclined tube 21.

When in use, firstly, different powder is required to be poured into the powder storage bin 15 in sequence, the gravity of the powder is transmitted to the piezoresistive sensor 13 through the connecting ring 14 to cause the strain on the film of the piezoresistive sensor 13 to change, the voltage output of the film is changed, the quality of the weighed object can be obtained by amplifying and processing the voltage so as to facilitate proportioning, after weighing is finished, the pneumatic piston 28 drives the sealing cover 29 to move so as to enable the sealing cover 29 to move out of the inclined tube 21, due to the fixed connection between the discharging motor 24 and the connecting shaft 25, the auger 26 can be driven to rotate through the connecting shaft 25 when the discharging motor 24 rotates, due to the conical structure at the bottom end of the powder storage bin 15, the powder can be contacted with the auger 26 under the guidance of the conical structure at the bottom end of the powder storage bin 15, the auger 26 can drive the powder in the powder storage bin 15 to move into the connecting tube 2 when rotating, the powder can slide out from the inclined tube 21 under the action of gravity, the mode can avoid the powder from blocking the open pore structure at the bottom end of the powder storage bin 15, the eccentric block 18 is driven to rotate by the vibrating motor 17, the outer side surface of the eccentric block 18 is contacted with the bottom surface of the fixed ring 16, the eccentric block 18 can drive the powder storage bin 15 to reciprocate up and down by the fixed ring 16 due to the different distances between the outer side surface of the eccentric block 18 and the rotating axle center of the eccentric block 18, the powder storage bin 15 can vibrate, the powder attached to the inner wall of the powder storage bin 15 falls off by inertia to avoid the powder attached to the inner wall of the powder storage bin 15, the connecting tube 2 and the inclined tube 21 are made of polytetrafluoroethylene materials and have smooth surfaces, the connecting tube 2 and the inclined tube 21 are also driven to vibrate in a winding way when the powder storage bin 15 vibrates, the powder is prevented from staying in the inner parts of the connecting tube 2 and the inclined tube 21, since the vibration motor 17 is a stepping motor, the eccentric mass 18 can be kept in a tip-down state when not rotated, so that the eccentric mass 18 is prevented from affecting the weighing of the piezoresistive sensor 13.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A powder metering scale structure capable of self-discharging, comprising:

The base plate (1), the top of base plate (1) fixed mounting has backup pad (11), and the top fixed mounting of backup pad (11) has joint board (12), its characterized in that, the top fixed mounting of joint board (12) has piezoresistive sensor (13), and the top movable mounting of piezoresistive sensor (13) has go-between (14), the center of go-between (14) is threaded and is installed powder storehouse (15), and the outside of powder storehouse (15) is threaded and is installed solid fixed ring (16), the internally mounted of backup pad (11) has vibrating motor (17), and is threaded and installed eccentric block (18) in the pivot of vibrating motor (17), the below of powder storehouse (15) is fixed mounting has connecting pipe (2), and the below fixed mounting of connecting pipe (2) has inclined tube (21), the outside of connecting pipe (2) is installed and is accepted ring (22), and the below of accepting ring (22) is fixed mounting and is threaded and install link (23), the center of link (23) is threaded and is installed motor (24), and is installed in the pivot of vibrating motor (17), and is installed on the pivot of connecting pipe (25), and the front side of the connecting plate (27) is fixedly provided with a pneumatic piston (28), and the front side of the pneumatic piston (28) is fixedly provided with a sealing cover (29).

2. The self-discharging powder metering scale structure according to claim 1, wherein:

The supporting plate (11) is symmetrically arranged at the front end and the rear end of the bottom plate (1) by taking the center of the bottom plate (1) as a reference, the supporting plate (11) is fixedly arranged at the center of the right end of the bottom plate (1), and the bearing plate (12) is fixedly connected with the bottom plate (1) through the supporting plate (11).

3. The self-discharging powder metering scale structure according to claim 1, wherein:

The connecting ring (14) is of an annular structure, the outer side of the connecting ring (14) is provided with a cross-shaped protruding structure by taking the center of the connecting ring (14) as a reference, the piezoresistive sensors (13) are installed above the bearing plate (12) in a cross-shaped mode by taking the center of the connecting ring (14) as a reference, and the top ends of the piezoresistive sensors (13) are in contact with the bottom surface of the protruding structure of the connecting ring (14).

4. The self-discharging powder metering scale structure according to claim 1, wherein:

The vibrating motor (17) is arranged inside the supporting plate (11) on the front side and the rear side of the bottom plate (1) in a mirror symmetry mode around taking the center of the powder storage bin (15) as a reference, the vibrating motor (17) is a stepping motor, the initial angle of the eccentric block (18) is vertical downward, the lower end of the powder storage bin (15) is of a conical structure, and a polytetrafluoroethylene coating is arranged on the inner wall of the powder storage bin (15).

5. The self-discharging powder metering scale structure according to claim 1, wherein:

The discharging motor (24) is fixedly connected with the connecting pipe (2) through the bearing ring (22), the connecting frame (23), and the axis of the connecting shaft (25) and the axis of the connecting pipe (2) are in the same straight line.

6. The self-discharging powder metering scale structure according to claim 1, wherein:

The connecting shaft (25) vertically penetrates through the inclined tube (21), the connecting shaft (25) upwards extends to the inside of the powder storage bin (15), and the auger (26) is in rotary connection with the discharging motor (24) through the connecting shaft (25).

7. The self-discharging powder metering scale structure according to claim 1, wherein:

The pneumatic piston (28) is symmetrically arranged on the front side of the connecting plate (27) left and right by taking the center of the connecting plate (27) as a reference, the left end of the sealing cover (29) is embedded with the inner wall of the inclined tube (21), the sealing cover (29) is movably connected with the inclined tube (21) through the pneumatic piston (28), and the connecting tube (2) and the inclined tube (21) are made of polytetrafluoroethylene.