CN213726888U

CN213726888U - Weightlessness scale for weighing with discontinuous feeding and continuous discharging

Info

Publication number: CN213726888U
Application number: CN202022293148.2U
Authority: CN
Inventors: 朱余峰; 王金贵
Original assignee: Youbiao Environmental Protection Equipment Zhangjiagang Co ltd
Current assignee: Youbiao Environmental Protection Equipment Zhangjiagang Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-07-20
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses a weightlessness scale for weighing of discontinuous feeding continuous discharging, which comprises a frame, the frame inboard is provided with the weighing hopper, the top of the weighing hopper is provided with a feed inlet, the feed inlet is provided with an adjusting mechanism, the bottom of the adjusting mechanism is provided with an electric valve, one side of the feed inlet is provided with a motor I, one side of the motor is provided with a direct-connected speed reducer, the bottom of the direct-connected speed reducer is fixedly connected with a stirring rod, the bottom of the stirring rod is provided with stirring blades, the periphery of the weighing hopper is arranged at the top of the frame and is provided with a weighing platform, a loading sensor is fixedly arranged inside the weighing platform, the bottom of the weighing hopper is provided with a double-screw discharging device, and a rotating impeller is arranged inside the double-screw discharging device; the weighing of the intermittent feeding and continuous discharging realizes the intermittent feeding and continuous discharging by the weightlessness scale, the loss control is carried out in the hopper, and the weighing scale has higher control precision and accuracy in the aspect of small powder flow control than a belt weighing feeder and a spiral weighing feeder.

Description

Weightlessness scale for weighing with discontinuous feeding and continuous discharging

Technical Field

The utility model relates to a weightless balance technical field specifically is a weigh and use weightless balance of being interrupted continuous ejection of compact of feed.

Background

The weightless scale is a weighing apparatus with intermittent feeding and continuous discharging, and has high control precision and easy sealing structure because the loss control is performed in the hopper, so that the control of powder material is greatly improved compared with that of screw scale. It is suitable for controlling and proportioning of fine materials such as cement, lime powder, coal powder and the like.

When the material of the weighing hopper reaches the weighing lower limit position, the discharging screw machine fixes the discharging amount according to the current rotating speed, meanwhile, the material in the storage bin is controlled to quickly fall into the weighing hopper, when the material is charged to the weighing upper limit, the charging is stopped, the feeding time can be shortened through quick charging, and the weighing accuracy and the control precision are improved.

The prior art has the following defects or problems:

in the existing simplified weightless feeding equipment, the general operation is complex, the intelligent degree of feeding is not high, the error is large, the feeding configuration is basically carried out manually, the stirring is carried out in the feeding equipment, the labor efficiency is reduced, the accuracy of the manual feeding configuration and the control precision are not high, moisture can be mixed in the materials in the feeding and discharging processes of the existing weightless scale, and as the control ingredients are generally fine materials such as cement powder, lime powder and coal powder, the feeding stagnation and the blockage of a feeding port are easy to occur in the feeding process, so that the precision of the weightless scale is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a be interrupted continuous ejection of compact of feed weightlessness scale for weighing to reach the mesh of the degree of accuracy and the control accuracy preferred of weighing.

In order to achieve the above object, the utility model provides a following technical scheme: the weightlessness scale for weighing with discontinuous feeding and continuous discharging comprises a frame, wherein a weighing hopper is arranged on the inner side of the frame, a feeding hole is formed in the top of the weighing hopper, an adjusting mechanism is arranged on the feeding hole, an electric valve is arranged at the bottom of the adjusting mechanism, a first motor is arranged on one side of the feeding hole, a direct-connected speed reducer is arranged on one side of the first motor, a stirring rod is fixedly connected to the bottom of the direct-connected speed reducer, stirring blades are arranged at the bottom of the stirring rod, a weighing platform is arranged at the top of the frame at the periphery of the weighing hopper, a load sensor is fixedly arranged in the weighing platform, a double-screw discharging device is arranged at the bottom of the weighing hopper, a rotating impeller is arranged in the double-screw discharging device, a second motor is arranged on one side of the double-screw discharging device, a gear box is arranged between the second motor and the double-screw discharging device, two spiral discharger one end is provided with the discharge gate, the inside rolling disc that is provided with of adjustment mechanism, the rolling disc surface runs through and is provided with the recess, recess top axle center department is provided with the air nozzle, the air nozzle top is located the inside electric heating wire that is provided with of feed inlet casing.

As the utility model discloses an optimal technical scheme, the inside link up of frame, the hopper of weighing passes through the bolt and weighs platform fixed connection, it is inboard that the hopper of weighing suspends in the frame.

As the utility model discloses a preferred technical scheme, the motorised valve passes through wire and external power source electric connection, the motorised valve passes through outside PLC controller intelligent control.

As the utility model discloses an optimal technical scheme, motor one is through wire and external power source electric connection, directly link the speed reducer and pass through bolt fixed mounting at the hopper top of weighing.

As the utility model discloses an optimal technical scheme, the angular circle such as platform of weighing distributes in the hopper periphery of weighing, the quantity of the platform of weighing is 3 groups, the platform of weighing passes through bolt fixed mounting at the frame top, load sensor passes through wire and external power source electric connection.

As the utility model discloses a preferred technical scheme, rotatory impeller fixed mounting is inside double helix discharger, double helix discharger one end and discharge gate fixed connection, the double helix discharger other end is connected with the gear box transmission.

As the utility model discloses a preferred technical scheme, inside driving gear and the driven gear of being provided with of gear box, driving gear and the two drive shaft fixed connection of motor, the driving gear is connected with the driven gear meshing, the two bolt fixed mounting that pass through of motor are in frame one side, the two wire and external power source electric connection are passed through to the motor, the two rotatory impeller gear drive that pass through the gear box drive of motor are connected.

As the utility model discloses a preferred technical scheme, the rolling disc bottom is provided with driving motor, the rolling disc by driving motor drive is connected with rotating in inside, angular circle such as recess distributes on the rolling disc surface, the quantity of recess is 3, the air nozzle passes through outside pipeline and links to each other with small-size air-blower, electric heating wire passes through wire and external power source electric connection.

Compared with the prior art, the utility model provides a be interrupted continuous ejection of compact of feed weigh with weightlessness title possesses following beneficial effect:

1. this be interrupted continuous ejection of compact of feed weightlessness scale for weighing, through setting up adjustment mechanism, adjust feed rate, open through setting up motorised valve intelligent control feeding and stop, degree of automation is high, control is accurate, unload to the material that the inside mobility of hopper is poor of weighing through setting up stirring vane, rotate through a motor drive stirring vane, make the material that appears arching easily and rat hole smoothly flow out, compare in the output material that other closed discharging device more can be even through setting up double helix discharger, also can prevent flying upward and spraying of powdery material.

2. The weightlessness scale for weighing with discontinuous feeding and continuous discharging comprises a hopper, a feeding mechanism, a weighing system and an adjusting mechanism. In actual operation, the hopper, the materials and the feeding mechanism are weighed continuously. After the material is delivered, the real weight loss rate is measured and compared with the required weight loss rate, and the deviation value is automatically corrected by adjusting the feeding rate through an adjusting mechanism and an electric valve, so that uniform and accurate continuous feeding is realized. When the materials in the weighing hopper reach the lower weighing limit value, the double-helix discharging device fixes the discharging amount according to the current rotating speed, and simultaneously controls the materials in the storage bin to quickly drop into the weighing hopper; when the material is charged to the upper limit value of weighing, the material charging is stopped, and the material charging can be quickly carried out, so that the feeding time can be shortened, and the weighing accuracy and the control precision can be improved.

3. This be interrupted weightless title for weighing of continuous ejection of compact of feed, through setting up the rolling disc, the rolling disc passes through motor drive and rotates, it is even from recess entering hopper to be favorable to throwing the material through the rolling disc at the uniform velocity rotation, the rolling disc plays the stirring effect, blow towards the direction of feed to the feed inlet is inside simultaneously through setting up the air nozzle, improve material fluidity, avoid the material stagnation to block up, through the inside electric heating wire that sets up of feed inlet casing above the air nozzle, electric heating wire passes through electric heating, make the inside moisture of material is detached in the rising of the inside temperature of feed inlet, dry material is at business turn over ejection of compact in-process mobility better, and be difficult for gluing to link and cause the jam, the measurement accuracy of weightless title has been improved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of the structure of the present invention;

FIG. 3 is a top view of the present invention;

fig. 4 is a schematic structural diagram of the adjusting mechanism of the present invention.

In the figure: 1. a frame; 2. weighing a hopper; 3. a feed inlet; 4. an adjustment mechanism; 5. an electrically operated valve; 6. a first motor; 7. directly connecting a speed reducer; 8. a stirring rod; 9. a stirring blade; 10. a weighing platform; 11. a load sensor; 12. a double-helix discharging device; 13. rotating the impeller; 14. a second motor; 15. a gear case; 16. a discharge port; 17. rotating the disc; 18. a groove; 19. an air nozzle; 20. an electric heating wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in this embodiment: comprises a frame 1, a weighing hopper 2 is arranged on the inner side of the frame 1, a feed inlet 3 is arranged on the top of the weighing hopper 2, an adjusting mechanism 4 is arranged on the feed inlet 3, an electric valve 5 is arranged at the bottom of the adjusting mechanism 4, a motor I6 is arranged on one side of the feed inlet 3, a direct-connected speed reducer 7 is arranged on one side of the motor I6, a stirring rod 8 is fixedly connected with the bottom of the direct-connected speed reducer 7, a stirring blade 9 is arranged at the bottom of the stirring rod 8, a weighing platform 10 is arranged at the top of the frame 1 at the periphery of the weighing hopper 2, a load sensor 11 is fixedly arranged in the weighing platform 10, a double-helix discharger 12 is arranged at the bottom of the weighing hopper 2, a rotary impeller 13 is arranged in the double-helix discharger 12, a motor II 14 is arranged on one side of the double-helix discharger 12, a gear box 15 is arranged between the motor II 14 and the double-helix discharger 12, and a discharge port 16 is arranged at one end of the double-helix discharger 12, a rotating disc 17 is arranged inside the adjusting mechanism 4, a groove 18 is formed in the surface of the rotating disc 17 in a penetrating mode, an air nozzle 19 is arranged at the axis of the top of the groove 18, and an electric heating wire 20 is arranged above the air nozzle 19 and inside the shell 3.

In the embodiment, the inside of the rack 1 is communicated, the weighing hopper 2 is fixedly connected with the weighing platform 10 through a bolt, and the weighing hopper 2 is suspended at the inner side of the rack 1, so that the weighing is facilitated; the electric valve 5 is electrically connected with an external power supply through a lead, the electric valve 5 is intelligently controlled through an external PLC controller, the feeding start and stop are automatically and intelligently controlled, and the control precision is high; the motor I6 is electrically connected with an external power supply through a wire, the direct-connected speed reducer 7 is fixedly installed at the top of the weighing hopper 2 through a bolt, and the motor I6 drives the stirring rod 8 to rotate through electric energy; the weighing tables 10 are distributed on the periphery of the weighing hopper 2 in an equiangular and circumferential manner, the number of the weighing tables 10 is 3, the weighing tables 10 are fixedly mounted at the top of the rack 1 through bolts, and the load sensors 11 are electrically connected with an external power supply through leads to continuously weigh the hopper, the material and the feeding mechanism I; the rotary impeller 13 is fixedly arranged in the double-helix discharging device 12, one end of the double-helix discharging device 12 is fixedly connected with the discharging port 16, the other end of the double-helix discharging device 12 is in transmission connection with the gear box 15, the double-helix discharging device 12 can output materials more uniformly compared with other closed discharging devices, and gears are arranged in the gear box 15 and transmit power generated by the motor II 14 to the rotary impeller 13 through gear transmission; a driving gear and a driven gear are arranged inside the gear box 15, the driving gear is fixedly connected with a second motor 14 through a driving shaft, the driving gear is meshed with the driven gear, the second motor 14 is fixedly installed on one side of the rack 1 through bolts, the second motor 14 is electrically connected with an external power supply through a lead, the second motor 14 drives the rotary impeller 13 to be in transmission connection with the gear through the gear box 15, and the meshing transmission power transmission of the gear is stable; the bottom of the rotating disc 17 is provided with a driving motor, the rotating disc 17 is driven by the driving motor to be connected with 3 inside in a rotating way, grooves 18 are distributed on the surface of the rotating disc 17 at equal angles and circumferentially, the number of the grooves 18 is 3, the air nozzles 19 are connected with a small-sized blower through an external pipeline, the electric heating wires 20 are electrically connected with an external power supply through wires, the rotating disc 17 plays a role in stirring, the air nozzles 19 blow air towards the feeding direction inside 3, the material flowability is improved, and the internal temperature of 3 is increased by the electric heating wires 20 to remove moisture in the material.

The utility model discloses a theory of operation and use flow: the weightlessness scale for weighing with discontinuous feeding and continuous discharging comprises a hopper, a feeding mechanism, a weighing system and an adjusting mechanism. In practice, the hopper, the material and the feeding mechanism are weighed continuously by the load cell 11. After the material is sent out, the real weight loss rate is measured and compared with a set value of the required weight loss rate, the deviation value is automatically corrected by adjusting the feeding rate through the adjusting mechanism 4 and the electric valve 5, so that uniform and accurate continuous feeding is realized, the feeding rate is adjusted by setting the adjusting mechanism 4, the feeding start and stop are intelligently controlled by setting the electric valve 5, the automation degree is high, and the control is accurate; in the discharging process, materials with poor flowability in the weighing hopper 2 are discharged in an auxiliary mode through the stirring blade 9, the stirring blade 9 is driven to rotate through the motor I6, the materials which are prone to arching and rat holes can flow out smoothly, the motor II 14 drives the rotary impeller 13 to rotate in a spiral mode through the gear box 15 through the double-spiral discharging device 12, the materials are output, the double-spiral discharging device 12 can output the materials more uniformly compared with other closed discharging devices, and flying and spraying of powdery materials can be prevented; when the material in the weighing hopper 2 reaches the lower weighing limit value, the double-helix discharging device 12 fixes the discharging amount according to the current rotating speed, and simultaneously controls the material in the storage bin to be quickly discharged into the weighing hopper 2; when the material is charged to the upper limit value of weighing, the material charging is stopped, and the material charging can be carried out quickly, so that the feeding time can be shortened, and the weighing accuracy and the control precision can be improved; through the inside rolling disc 17 that sets up of adjustment mechanism 4, rolling disc 17 passes through motor drive and rotates, it is even from recess 18 entering hopper to be favorable to throwing the material through rolling disc 17 at the uniform velocity of rotation, rolling disc 17 plays the stirring effect, blow towards the direction of feed inside through setting up air nozzle 19 simultaneously, improve material fluidity, avoid the material stagnation to block up, through at the inside electric heating wire 20 that sets up of 19 top feed inlets 3 casings of air nozzle, electric heating wire 20 passes through electric heating, make inside temperature rise and detach the inside moisture of material, dry material is mobile better in business turn over ejection of compact in-process, and difficult gluing leads to the fact the jam, the measurement accuracy of weightless balance has been improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A weightlessness scale for weighing with discontinuous feeding and continuous discharging is characterized in that: the automatic weighing machine comprises a rack (1), wherein a weighing hopper (2) is arranged on the inner side of the rack (1), a feeding hole (3) is formed in the top of the weighing hopper (2), an adjusting mechanism (4) is arranged on the feeding hole (3), an electric valve (5) is arranged at the bottom of the adjusting mechanism (4), a motor I (6) is arranged on one side of the feeding hole (3), a direct-connected speed reducer (7) is arranged on one side of the motor I (6), a stirring rod (8) is fixedly connected to the bottom of the direct-connected speed reducer (7), stirring blades (9) are arranged at the bottom of the stirring rod (8), a weighing platform (10) is arranged at the top of the rack (1) on the periphery of the weighing hopper (2), a load sensor (11) is fixedly arranged inside the weighing platform (10), a double-screw discharger (12) is arranged at the bottom of the weighing hopper (2), and a rotary impeller (13) is arranged inside the double-screw discharger (12), two spiral discharger (12) one side is provided with motor two (14), be provided with gear box (15) between motor two (14) and two spiral discharger (12), two spiral discharger (12) one end is provided with discharge gate (16), adjustment mechanism (4) inside is provided with rolling disc (17), rolling disc (17) surface runs through and is provided with recess (18), recess (18) top axle center department is provided with air nozzle (19), air nozzle (19) top is located feed inlet (3) casing inside and is provided with electric heating wire (20).

2. The intermittent feeding and continuous discharging weightlessness scale according to claim 1, characterized in that: the weighing machine is characterized in that the inside of the rack (1) is communicated, the weighing hopper (2) is fixedly connected with the weighing platform (10) through a bolt, and the weighing hopper (2) is suspended on the inner side of the rack (1).

3. The intermittent feeding and continuous discharging weightlessness scale according to claim 1, characterized in that: the electric valve (5) is electrically connected with an external power supply through a lead, and the electric valve (5) is intelligently controlled through an external PLC.

4. The intermittent feeding and continuous discharging weightlessness scale according to claim 1, characterized in that: the motor I (6) is electrically connected with an external power supply through a wire, and the direct connection speed reducer (7) is fixedly installed at the top of the weighing hopper (2) through a bolt.

5. The intermittent feeding and continuous discharging weightlessness scale according to claim 1, characterized in that: the weighing platform (10) is distributed on the periphery of the weighing hopper (2) in an equiangular circumference mode, the number of the weighing platforms (10) is 3, the weighing platforms (10) are fixedly installed on the top of the rack (1) through bolts, and the load sensors (11) are electrically connected with an external power supply through wires.

6. The intermittent feeding and continuous discharging weightlessness scale according to claim 1, characterized in that: rotatory impeller (13) fixed mounting is inside double helix discharger (12), double helix discharger (12) one end and discharge gate (16) fixed connection, double helix discharger (12) other end and gear box (15) transmission are connected.

7. The intermittent feeding and continuous discharging weightlessness scale according to claim 1, characterized in that: the novel gear box is characterized in that a driving gear and a driven gear are arranged inside the gear box (15), the driving gear is fixedly connected with a second motor (14) through a driving shaft, the driving gear is meshed with the driven gear, the second motor (14) is fixedly installed on one side of the rack (1) through a bolt, the second motor (14) is electrically connected with an external power supply through a lead, and the second motor (14) is connected with a rotary impeller (13) through the gear box (15) in a gear transmission mode.

8. The intermittent feeding and continuous discharging weightlessness scale according to claim 1, characterized in that: the utility model discloses an air blower, including rolling disc (17), rolling disc (17) drive mechanism (4) inside rotation, the angular circumference such as recess (18) distributes on rolling disc (17) surface, the quantity of recess (18) is 3, air nozzle (19) link to each other with small-size air-blower through outside pipeline, electric heating wire (20) pass through wire and external power source electric connection.