CN217765187U

CN217765187U - Automatic change little metering device of high accuracy

Info

Publication number: CN217765187U
Application number: CN202221792724.0U
Authority: CN
Inventors: 聂海波; 季春明; 史林果
Original assignee: Zhejiang Tianzao Environmental Protection Technology Co ltd
Current assignee: Zhejiang Tianzao Environmental Protection Technology Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-11-08
Anticipated expiration: 2032-07-13

Abstract

The utility model relates to the technical field of dry-mixed mortar metering, in particular to an automatic high-precision micro metering device, which comprises a feeding component, a blanking component and a weighing component; the feeding assembly comprises a feeding chamber; the feeding chamber is provided with a feeding pipe and a discharging pipe; a second pneumatic butterfly valve is arranged on the discharge pipe; the weighing assembly comprises an electronic scale, a gravity sensor and a controller; the feeding chamber is fixedly arranged on the electronic scale; the gravity sensor and the controller are both arranged in the electronic scale and are electrically connected; the second pneumatic butterfly valve is connected with the controller through an electric signal; the blanking assembly comprises a blanking pipe, a conical scraper and a driving assembly; the periphery of the upper part of the conical scraper is in seamless abutting joint with the inner wall of the blanking pipe, and the outer diameter of the lower part of the conical scraper is smaller than the inner diameter of the blanking pipe; the output end of the driving component is fixedly connected with the periphery of the conical scraper; the unloading pipe is connected through dustproof flexible coupling with the discharging pipe, through the utility model discloses can realize simplifying metering device and the device during operation produces the noise little.

Description

Automatic change little metering device of high accuracy

Technical Field

The utility model relates to a dry-mixed mortar measurement technical field, concrete field is an automatic change little metering device of high accuracy.

Background

Dry-mixed mortar is a granular or powdery material prepared by physically mixing dry-screened aggregate (such as quartz sand), powder (such as cement and fly ash) and additive (such as polymer) according to a certain proportion, and the granular or powdery material is transported to a construction site in a bag or in bulk form and can be directly used after being mixed with water. The method has the advantages that the control of the amount of the additive in the dry-mixed mortar is important, whether the amount of the additive accurately determines the material performance of a finished product of the dry-mixed mortar, in the prior art, in patent CN201720617101.2, the addition of the additive is controlled by a weight loss method, and the additive is not adsorbed on a blanking pipe by matching a butterfly valve with a vibrator, so that the additive is accurately weighed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an automatic little metering device of high accuracy, it can realize simplifying metering device and the device during operation produces the noise little.

In order to achieve the above purpose, the utility model provides a following technical scheme: an automatic high-precision micro-metering device comprises a feeding component, a blanking component and a weighing component;

the feed assembly comprises a feed chamber for metering; a conveying device is arranged in the feeding chamber, and the output direction of the conveying device is the same as the length direction of the feeding chamber; the upper end of the feeding chamber is provided with a feeding pipe, and the lower end of the feeding chamber is provided with a discharging pipe; a second pneumatic butterfly valve is arranged on the discharge pipe;

the weighing assembly comprises an electronic scale, a gravity sensor and a controller; the feeding chamber is fixedly arranged on the electronic scale; the gravity sensor and the controller are both arranged in the electronic scale and are electrically connected; the second pneumatic butterfly valve is connected with the controller through an electric signal;

the blanking assembly comprises a blanking pipe, a conical scraper and a driving assembly; the conical scraper is in a conical pipe structure, the periphery of the upper part of the conical scraper is in seamless butt joint with the inner wall of the feeding pipe, and the outer diameter of the lower part of the conical scraper is smaller than the inner diameter of the feeding pipe; the output end of the driving assembly is fixedly connected with the periphery of the conical scraper so as to drive the blanking pipe to axially slide;

the discharging pipe is arranged on the lower side of the discharging pipe and is connected with the discharging pipe through a dustproof flexible connection.

Preferably, the drive assembly comprises an electric push rod; the electric push rod is fixedly arranged at the lower end of the outer side of the blanking pipe, and the output end of the electric push rod extends into the blanking pipe and is fixedly connected with the periphery of the conical scraper.

Preferably, the controller is connected with the electric push rod through an electric signal.

Preferably, the conveying device comprises a motor and a screw rod; the motor is fixedly arranged on the left side of the feeding chamber, the auger rod is arranged in the feeding chamber, and the length direction of the auger rod is the same as the length direction of the feeding chamber; the output end of the motor is fixedly connected with the left end of the auger rod.

Preferably, the motor is connected with the controller through an electric signal.

Preferably, the device also comprises a storage bin; the storage bin is arranged on the upper side of the feeding chamber; the lower end of the stock bin is provided with a feed opening; the feed opening is provided with a first pneumatic butterfly valve; the feed opening is connected with the feed pipe through a dustproof flexible connection; the controller is connected with the first pneumatic butterfly valve through an electric signal.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the conical scraper is arranged in the blanking pipe, the upper end of the conical scraper is in seamless contact with the inner periphery of the blanking pipe, the lower end of the conical scraper is fixedly connected with the output end of the electric push rod, and the electric push rod pushes the conical scraper to scrape in the blanking pipe to remove materials attached to the inner wall of the blanking pipe, so that the device is more accurate in metering, and meanwhile, the device is more silent in operation, and the working environment is improved;

2. through the combination of the conical scraper and the electric push rod, the input of the vibrator is reduced, and the manufacturing cost of the device is saved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of the feeding assembly of the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the blanking assembly of the present invention.

In the figure: 1 feed bin, 2 first pneumatic butterfly valve, 3 feed subassemblies, 301 feed room, 302 inlet pipes, 303 discharging pipe, 304 auger stems, 305 motors, 4 second pneumatic butterfly valves, 5 unloading subassemblies, 501 unloading pipes, 502 tapered scraper blade, 503 electric putter, 6 weigh the subassembly, 7 fixed stations.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not limiting, of the scope of the invention.

The first embodiment is as follows: referring to fig. 1-3, an automatic high-precision micro-metering device includes a storage bin 1, a feeding component 3, a blanking component 5, a weighing component 6 and a fixing platform 7;

the feeding assembly 3 comprises a feeding chamber 301, an auger rod 304 and a motor 305; the feeding chamber 301 is of a transverse cuboid structure with a cavity arranged inside, a feeding pipe 302 is arranged at the left part of the upper end of the feeding chamber 301, a discharging pipe 303 is arranged at the right part of the lower end of the feeding chamber 301, and the feeding pipe 302 and the discharging pipe 303 are both communicated with a cavity inside the feeding chamber 301; the discharging pipe 303 is provided with a second pneumatic butterfly valve 4, and the second pneumatic butterfly valve 4 is normally closed.

The auger rod 304 is arranged in the feeding chamber 301, and the length direction of the auger rod 304 is the same as that of the feeding chamber 301; the motor 305 is arranged on the left side of the feeding chamber 301, the rotating shaft of the motor 305 is fixedly connected with the left end of the auger rod 304, and when the motor 305 works, the motor 305 can drive the auger rod 304 to rotate.

The feed bin 1 is arranged on the upper side of the feeding component 3, and a feed opening of the feed bin 1 is connected with the feed pipe 302 through dustproof flexible connection; the feed opening of feed bin 1 is equipped with first pneumatic butterfly valve 2, and first pneumatic butterfly valve 2 is the normal close.

The weighing assembly 6 comprises an electronic scale, a gravity sensor and a controller; the electronic scale is fixedly arranged on the fixed table 7, and the feeding chamber 301 is fixedly arranged at the upper end of the electronic scale; the gravity sensor and the controller are both arranged in the electronic scale and are electrically connected; the first pneumatic butterfly valve 2 and the second pneumatic butterfly valve 4 are connected with the controller through electric signals.

The blanking assembly 5 comprises a blanking pipe 501, a conical scraper 502 and an electric push rod 503; the discharging pipe 501 is arranged on the fixed table, and the discharging pipe 501 is positioned at the lower side of the discharging pipe 303; the upper end of the blanking pipe 501 is connected with the lower end of the discharging pipe 303 through dustproof flexible connection, and the lower end of the blanking pipe 501 is communicated with an external dry-mixed mortar mixing bin; the conical scraper 502 is a conical tubular structure, and the outer diameter of the upper end of the conical scraper is larger than that of the lower end of the conical scraper; the periphery of the upper part of the conical scraper 502 is in seamless contact with the inner wall of the blanking pipe 501; the electric push rod 503 is installed on the outer side of the lower end of the blanking pipe 501, the output end of the electric push rod 503 is arranged in the blanking pipe 501, the output end of the electric push rod 503 is fixedly connected with the periphery of the conical scraper 502, and when the electric push rod 503 works, the conical scraper 502 is pushed to axially slide in the blanking pipe 501; in this embodiment, the electric push rod 503 is connected to the controller via an electric signal.

The working principle of the micro-metering device is as follows: the gravity sensor monitors the weight change of the materials in the feeding chamber 301, when the materials in the feeding chamber 301 need to be supplemented, the controller controls the first pneumatic butterfly valve 2 to be opened, the materials are conveyed into the feeding chamber 301, and after the weight of the materials in the feeding chamber 301 reaches a preset value, the controller controls the first pneumatic butterfly valve 2 to be closed; when dry-mixed materials need to be produced, the motor 305 works, the controller controls the second pneumatic butterfly valve 4 to be opened, the gravity sensor senses the weight change in the feeding chamber 301, and when the weight lost in the feeding chamber 301 reaches the weight needed by the mixing bin, the motor 305 and the second pneumatic butterfly valve 4 are closed; when the motor 305 works, the controller controls the electric push rod 503 to work, the electric push rod 503 pushes the conical scraper 502 to slide up and down in the blanking pipe 501 to scrape off materials attached to the inner wall of the blanking pipe 501, and the weight of the materials entering the mixing bin is the same as that of the materials lost from the feeding chamber 301, so that the feeding accuracy of the device is improved, and no loss occurs in the feeding process; meanwhile, the electric push rod 503 pushes the conical scraper 502 to scrape off the blanking pipe 501 when the materials attached to the inner wall of the blanking pipe 501 are removed, so that the device is silent relative to the material removing operation of a vibrator, and the working environment of the metering device during working is greatly improved.

Through the technical scheme, the electric push rod 503 is utilized to push the conical scraper 502 to scrape in the blanking pipe 501, so that the device is more silent relative to the material removing work of the vibrator, and the working environment of the metering device during working is greatly improved.

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

Claims

1. The utility model provides an automatic change little metering device of high accuracy which characterized in that: comprises a feeding component (3), a blanking component (5) and a weighing component (6);

the feed assembly (3) comprises a feed chamber (301) for metering; a conveying device is arranged in the feeding chamber (301), and the output direction of the conveying device is the same as the length direction of the feeding chamber (301); a feeding pipe (302) is arranged at the upper end of the feeding chamber (301), and a discharging pipe (303) is arranged at the lower end of the feeding chamber; a second pneumatic butterfly valve (4) is arranged on the discharge pipe (303);

the weighing assembly (6) comprises an electronic scale, a gravity sensor and a controller; the feeding chamber (301) is fixedly arranged on the electronic scale; the gravity sensor and the controller are both arranged in the electronic scale and are electrically connected; the second pneumatic butterfly valve (4) is connected with the controller through an electric signal;

the blanking assembly (5) comprises a blanking pipe (501), a conical scraper (502) and a driving assembly; the conical scraper (502) is in a conical pipe structure, the periphery of the upper part of the conical scraper (502) is in seamless abutting joint with the inner wall of the blanking pipe (501), and the outer diameter of the lower part is smaller than the inner diameter of the blanking pipe (501); the output end of the driving assembly is fixedly connected with the periphery of the conical scraper (502) to drive the blanking pipe (501) to axially slide;

the discharging pipe (501) is installed on the lower side of the discharging pipe (501), and the discharging pipe (501) is connected with the discharging pipe (303) through dustproof flexible connection.

2. An automated high precision micro-metering device according to claim 1, wherein: the driving component comprises an electric push rod (503); the electric push rod (503) is fixedly installed at the lower end of the outer side of the discharging pipe (501), and the output end of the electric push rod (503) extends into the discharging pipe (501) and is fixedly connected with the periphery of the conical scraper (502).

3. An automated high precision micro-metering device according to claim 2, wherein: the controller is connected with the electric push rod (503) through an electric signal.

4. An automated high precision micro-metering device according to claim 1, wherein: the conveying device comprises a motor (305) and an auger rod (304); the motor (305) is fixedly arranged on the left side of the feeding chamber (301), the packing auger rod (304) is installed in the feeding chamber (301), and the length direction of the packing auger rod (304) is the same as that of the feeding chamber (301); the output end of the motor (305) is fixedly connected with the left end of the packing auger rod (304).

5. An automated high precision micro-metering device according to claim 4, wherein: the motor (305) is connected with the controller through an electric signal.

6. An automated high precision micro-metering device according to claim 1, wherein: the device also comprises a storage bin (1); the stock bin (1) is arranged on the upper side of the feeding chamber (301); the lower end of the stock bin (1) is provided with a feed opening; the feed opening is provided with a first pneumatic butterfly valve (2); the feed opening is connected with the feed pipe (302) through a dustproof soft connection; the controller is connected with the first pneumatic butterfly valve (2) through an electric signal.