Automatic weighing and feeding device

Abstract

The utility model is suitable for the technical field of feeding equipment, and provides an automatic weighing and feeding device which comprises a rack, the plurality of supporting frames are fixedly mounted on the rack, weighing sensors are arranged on the plurality of supporting frames, and the weighing sensors are used for weighing materials for manufacturing the asphalt mixture; the material box is arranged on the multiple supporting frames, a discharging opening is formed in one side wall of the material box and used for discharging, and a discharging pipe is fixedly installed at the bottom of the material box and used for discharging. According to the automatic weighing and feeding device provided by the scheme, the materials can be weighed and fed, and can be screened, so that the materials are more uniform, the product processing effect is improved, the manufactured asphalt mixture is more uniform, and the flatness of subsequent pavement paving is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of feeding equipment, and particularly relates to an automatic weighing and feeding device. Background Art

[0002] When laying asphalt pavement on a road, it is necessary to process the asphalt materials used for laying. It is necessary to mix various base materials for making asphalt materials in a certain proportion, so a corresponding automatic weighing and feeding device is needed.

[0003] The base materials such as stones and sand for making asphalt materials are weighed and fed through an automatic weighing and feeding device. However, some existing automatic weighing and feeding devices still have certain deficiencies in actual use. They can only play the role of weighing and feeding, and cannot screen the stones well. As a result, there are stones with relatively large sizes in the stones, which makes it difficult to form a flat surface when paving the asphalt mixture. The relatively large stones may protrude above the mixture, causing the road surface to be uneven, thereby reducing the use effect of the subsequent made asphalt materials. Summary of the Utility Model

[0004] The utility model provides an automatic weighing and feeding device, aiming to solve the problem that the currently used automatic weighing and feeding device cannot screen the base materials for making asphalt mixture as mentioned in the above background art.

[0005] To solve the above problems, the utility model is realized as follows. An automatic weighing and feeding device includes: a frame; a plurality of support frames fixedly installed on the frame and distributed at intervals in a circular shape. Weighing sensors are arranged on each of the plurality of support frames, and the weighing sensors are used to weigh the materials for making asphalt mixture; a material box arranged between the plurality of support frames. A discharge port is opened on one side wall of the material box for discharging materials. A blanking pipe is fixedly installed at the bottom of the material box for blanking; a plurality of connecting frames fixedly installed on the outer wall of the material box, and one ends of the plurality of connecting frames are respectively connected with the plurality of weighing sensors in a matching manner; a sieve plate fixedly installed in the material box and dividing the material box into upper and lower parts, and the sieve plate is used to screen the materials for making asphalt mixture; a screening mechanism assembled on the material box, and the screening mechanism is used to drive the sieve plate to vibrate to screen the materials for making asphalt mixture; a blanking mechanism assembled in the material box, and the blanking mechanism is used to blank the weighed materials for making asphalt mixture in the material box.

[0006] Preferably, the screening mechanism includes: a servo motor fixedly installed on an outer wall of one side of the material box; a mounting shaft rotatably installed in the material box, one end of the mounting shaft being fixedly connected to an output shaft of the servo motor; a plurality of bumps fixedly sleeved on the mounting shaft, and the plurality of bumps are all located below the sieve plate, and the bumps are used for vibrating the sieve plate.

[0007] Preferably, the blanking mechanism includes: a placement shaft vertically and rotatably installed in the material box; a cleaning frame fixedly installed on the placement shaft, the cleaning frame being in contact with an inner wall of the material box, and the cleaning frame is used for cleaning the material adhered to the inner wall of the material box; a driving motor fixedly installed on an outer wall of one side of the material box; a connecting shaft rotatably installed on the material box, the connecting shaft being fixedly connected to an output shaft of the driving motor; two bevel gears respectively threadedly sleeved on the connecting shaft and the placement shaft, and the two bevel gears mesh with each other.

[0008] Preferably, a control mechanism is provided on the blanking pipe, and the control mechanism is used for controlling the use of the blanking pipe. The control mechanism includes: a power motor fixedly installed on an outer wall of one side of the blanking pipe; a rotating shaft rotatably installed in the blanking pipe, one end of the rotating shaft being fixedly connected to an output shaft of the power motor; a blocking block fixedly sleeved on the rotating shaft, the blocking block being used for blocking the blanking pipe, and the blocking block is adapted to the blanking pipe.

[0009] Preferably, a blocking mechanism is provided on the discharge port, and the blocking mechanism is used for blocking the discharge port. The blocking mechanism includes: a motor fixedly installed on an outer wall of one side of the material box; a driving shaft rotatably installed on the material box, and one end of the driving shaft being fixedly connected to an output shaft of the motor; a blocking door fixedly sleeved on the driving shaft, the blocking door being adapted to the discharge port, and the blocking door is used for blocking the discharge port.

[0010] Preferably, a conveyor belt is provided on the frame, and the conveyor belt is located below the blanking pipe, and the conveyor belt is used for conveying the weighed materials for making asphalt mixture.

[0011] Preferably, a guiding hopper is fixedly installed on an outer wall of one side of the material box, and the guiding hopper is located on one side of the discharge port, and the guiding hopper is used for guiding the screened materials.

[0012] Compared with the related art, the automatic weighing and feeding device provided by the present utility model has the following beneficial effects:

[0013] Compared with the prior art, the automatic weighing and feeding device provided by this solution:

[0014] By putting the material into the material box, under the action of the weighing sensor, the material is weighed, and then the weighed material is fed into the corresponding processing station through the conveyor belt, thus completing the weighing and feeding operations of the material. The screening mechanism vibrates the sieve plate, and the vibrating sieve plate screens the material, so that the material can be more uniform, improving the effect of product processing, making the prepared asphalt mixture more uniform, and further improving the flatness of the subsequent road surface paving. Brief Description of the Drawings

[0015] Figure 1 is the front view structural schematic diagram of an automatic weighing and feeding device provided by the present utility model;

[0016] Figure 2 is the front view sectional structural schematic diagram of the present utility model;

[0017] Figure 3 is Figure 2 the enlarged structural schematic diagram of part A shown in

[0018] Figure 4 is Figure 2 the enlarged structural schematic diagram of part B shown in

[0019] Figure 5 is Figure 2 the enlarged structural schematic diagram of part C shown in

[0020] Figure 6 is the three-dimensional structural schematic diagram of the mounting shaft and the convex block in the present utility model.

[0021] Reference Numerals: 1, frame; 2, support frame; 201, weighing sensor; 3, material box; 301, discharge port; 302, feed pipe; 4, connecting frame; 5, sieve plate; 6, screening mechanism; 601, servo motor; 602, mounting shaft; 603, convex block; 7, placement shaft; 8, cleaning frame; 9, drive motor; 10, connecting shaft; 11, bevel gear; 12, power motor; 13, rotating shaft; 14, stop block; 15, motor; 16, drive shaft; 17, shutter; 18, conveyor belt. Detailed Description of the Preferred Embodiment

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order; the terms "inner", "outer", "left", "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present utility model.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0024] An embodiment of the present utility model provides an automatic weighing and feeding device, as Figures 1-6 shown. The automatic weighing and feeding device includes: a frame 1; a plurality of support frames 2 fixedly installed on the frame 1 and distributed at intervals in a circular shape. A weighing sensor 201 is provided on each of the plurality of support frames 2, and the weighing sensor 201 is used to weigh the materials for making asphalt mixtures; a material box 3 disposed between the plurality of support frames 2. A discharge port 301 is formed on one side wall of the material box 3, and the discharge port 301 is used for discharging materials. A discharge pipe 302 is fixedly installed at the bottom of the material box 3, and the discharge pipe 302 is used for discharging materials; a plurality of connecting frames 4 fixedly installed on the outer wall of the material box 3, and one ends of the plurality of connecting frames 4 are respectively connected to the plurality of weighing sensors 201 in a matching manner; a sieve plate 5 fixedly installed in the material box 3 and dividing the material box into upper and lower parts, and the sieve plate 5 is used to screen the materials for making asphalt mixtures; a screening mechanism 6 assembled on the material box 3, and the screening mechanism 6 is used to drive the sieve plate 5 to vibrate to screen the materials for making asphalt mixtures; a feeding mechanism assembled in the material box 3, and the feeding mechanism is used to feed the weighed materials for making asphalt mixtures in the material box 3.

[0025] In this embodiment, when making the asphalt mixture used for paving roads, when weighing and feeding the made stones and sand, when weighing and feeding the sand, the discharge port 301 is closed, and the sand can be directly put into the material box 3. The weight on the material box 3 is transmitted to the weighing sensor 201 through the connecting frame 4 for weighing, so that the sand can be weighed. Then, the feeding pipe 302 is opened, and the weighed sand is discharged through the feeding pipe 302, and then falls onto the conveyor belt 18 and is fed into the corresponding processing station. Then, the feeding mechanism is started to clean the sand adhered to the inner wall of the material box 3, so as to improve the cleanliness of the discharge, and further improve the accuracy of the material quantity feeding;

[0026] When weighing and feeding the stones, the discharge port 301 is opened, and at the same time, the screening mechanism 6 is started to vibrate the sieve plate 5. The stones are put into the material box 3, and the vibrating sieve plate 5 screens the stones. The stones that meet the size pass through the sieve plate 5, and the stones with larger particle sizes are discharged through the discharge port 301, so that the materials can be made more uniform, the processing effect of the product can be improved, the made asphalt mixture can be made more uniform, and further the flatness of the subsequent road surface paving can be improved. Then, the stones are weighed by the weighing sensor 201, and then they can be fed.

[0027] In a further preferred embodiment of the present utility model, the screening mechanism 6 includes: a servo motor 601 fixedly installed on the outer wall of one side of the material box 3; a mounting shaft 602 rotatably installed in the material box 3, one end of the mounting shaft 602 is fixedly connected to the output shaft of the servo motor 601; a plurality of convex blocks 603 fixedly sleeved on the mounting shaft 602, and the plurality of convex blocks 603 are all located below the sieve plate 5, and the convex blocks 603 are used to vibrate the sieve plate 5.

[0028] In this embodiment, when using the screening mechanism 6, the servo motor 601 is started through the controller (a controller is arranged on one side of the device) to drive the convex blocks 603 on the mounting shaft 602 to rotate and continuously knock and vibrate the sieve plate 5. The vibrating sieve plate 5 screens the stones. The stones that meet the size pass through the sieve plate 5, and the stones with larger particle sizes are discharged through the discharge port 301, so that the materials can be made more uniform, the processing effect of the product can be improved, the made asphalt mixture can be made more uniform, and further the flatness of the subsequent road surface paving can be improved.

[0029] In a further preferred embodiment of the present utility model, the blanking mechanism includes: a placement shaft 7 rotatably installed vertically in the material box 3; a cleaning frame 8 fixedly installed on the placement shaft 7, the cleaning frame 8 being in contact with the inner wall of the material box 3, and the cleaning frame 8 being used to clean the materials adhered to the inner wall of the material box 3; a driving motor 9 fixedly installed on the outer wall of one side of the material box 3; a connecting shaft 10 rotatably installed on the material box 3, the connecting shaft 10 being fixedly connected to the output shaft of the driving motor 9; two bevel gears 11 respectively sleeved on the connecting shaft 10 and the placement shaft 7 in a threaded manner, and the two bevel gears 11 being meshed with each other.

[0030] In this embodiment, when using the blanking mechanism, the driving motor 9 is started by the controller to drive the connecting shaft 10 to rotate. Under the action of the bevel gears 11, the cleaning frame 8 on the placement shaft 7 is driven to rotate to clean the sand adhered to the inner wall of the material box 3, thereby improving the cleanliness of discharging and further improving the accuracy of the material quantity input.

[0031] In a further preferred embodiment of the present utility model, a control mechanism is provided on the blanking pipe 302, and the control mechanism is used to control the use of the blanking pipe 302. The control mechanism includes: a power motor 12 fixedly installed on the outer wall of one side of the blanking pipe 302; a rotating shaft 13 rotatably installed in the blanking pipe 302, one end of the rotating shaft 13 being fixedly connected to the output shaft of the power motor 12; a blocking block 14 fixedly sleeved on the rotating shaft 13, the blocking block 14 being used to block the blanking pipe 302, and the blocking block 14 being adapted to the blanking pipe 302.

[0032] In this embodiment, when the weighing of the material is completed and discharging and feeding are required, the power motor 12 is started by the controller to drive the blocking block 14 on the rotating shaft 13 to rotate, thereby opening the blanking pipe 302 and discharging the weighed material onto the conveyor belt 18, and then feeding the weighed material into the next processing station.

[0033] In a further preferred embodiment of the present utility model, a blocking mechanism is provided on the discharge port 301, and the blocking mechanism is used to block the discharge port 301. The blocking mechanism includes: a motor 15 fixedly installed on the outer wall of one side of the material box 3; a driving shaft 16 rotatably installed on the material box 3, and one end of the driving shaft 16 being fixedly connected to the output shaft of the motor 15; a blocking door 17 fixedly sleeved on the driving shaft 16, the blocking door 17 being adapted to the discharge port 301, and the blocking door 17 being used to block the discharge port 301.

[0034] In this embodiment, when some materials need to be screened, the controller starts the motor 15 to drive the shutter 17 on the drive shaft 16 to open, so as to facilitate the discharge of the large-particle-size materials screened by the sieve plate 5 through the discharge port 301.

[0035] In a further preferred embodiment of the present utility model, a conveyor belt 18 is provided on the frame 1. The conveyor belt 18 is located below the feeding pipe 302, and the conveyor belt 18 is used to convey the materials for making asphalt mixture after weighing.

[0036] In this embodiment, the conveyor belt 18 facilitates the conveyance and feeding of the weighed materials into the next processing station.

[0037] In a further preferred embodiment of the present utility model, a material guide hopper is fixedly installed on an outer wall of one side of the material box 3. The material guide hopper is located on one side of the discharge port 301, and the material guide hopper is used to guide the screened materials.

[0038] In this embodiment, the material guide hopper is used to guide the screened materials.

[0039] To sum up, compared with the related art, by putting the materials into the material box 3, under the action of the weighing sensor 201, the materials are weighed, and then the weighed materials are fed into the corresponding processing stations through the conveyor belt 18, so as to complete the weighing and feeding operations of the materials. The sieve plate 5 is vibrated by the screening mechanism 6, and the vibrating sieve plate 5 screens the materials, so that the materials can be made more uniform, the processing effect of the products is improved, the made asphalt mixture is more uniform, and further the flatness of the subsequent road surface laying is improved.

[0040] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways.

[0041] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present utility model according to the situation without creative efforts, so as to obtain different technical solutions that are essentially not separated from the concept of the present utility model, and these technical solutions also fall within the scope of protection of the present utility model.

Claims

1. An automatic weighing and feeding device, characterized in that: include: frame; A plurality of support frames fixedly mounted on the frame and distributed in a circular pattern at intervals, each of the plurality of support frames being provided with a weighing sensor, the weighing sensor being used to weigh the material for making the asphalt mixture; a material box being arranged between the plurality of support frames, a discharge port being provided on one side wall of the material box, the discharge port being used for discharging material, a discharge pipe being fixedly mounted on the bottom of the material box, the discharge pipe being used for discharge material; a plurality of connecting frames fixedly mounted on the outer wall of the material box, one end of the plurality of connecting frames being respectively connected with a plurality of weighing sensors; a sieve plate fixedly mounted in the material box to separate the material box into two upper and lower parts, the sieve plate being used to screen the material for making the asphalt mixture; a screening mechanism mounted on the material box, the screening mechanism being used to screen the material for making the asphalt mixture by driving the sieve plate to vibrate; a discharge mechanism mounted in the material box, the discharge mechanism being used to discharge the weighed material for making the asphalt mixture in the material box.

2. The automatic weighing and feeding device according to claim 1, characterized in that: The screening mechanism includes: a servo motor fixedly installed on an outer wall of one side of the material box; a mounting shaft rotatably installed in the material box, one end of the mounting shaft being fixedly connected to the output shaft of the servo motor; a plurality of protrusions fixedly sleeved on the mounting shaft, the plurality of protrusions being located below the sieve plate, and the protrusions being used to vibrate the sieve plate.

3. The automatic weighing and feeding device according to claim 1, characterized in that: The unloading mechanism includes: a placement shaft vertically rotatably installed in the material box; a cleaning frame fixedly installed on the placement shaft, the cleaning frame is in contact with the inner wall of the material box, and the cleaning frame is used to clean the material adhered to the inner wall of the material box; a driving motor fixedly installed on the outer wall of one side of the material box; a connecting shaft rotatably installed on the material box, the connecting shaft and the output shaft of the driving motor are fixedly connected; two bevel gears respectively threadedly sleeved on the connecting shaft and the placement shaft, and the two bevel gears are meshed with each other.

4. The automatic weighing and feeding device according to claim 1, characterized in that: A control mechanism is provided on the discharge pipe, and the control mechanism is used to control the use of the discharge pipe. The control mechanism includes: a power motor fixedly installed on the outer wall of one side of the discharge pipe; a rotating shaft rotatably installed in the discharge pipe, one end of the rotating shaft is fixedly connected to the output shaft of the power motor; a stopper fixedly sleeved on the rotating shaft, and the stopper is used to block the discharge pipe, and the stopper is adapted to the discharge pipe.

5. The automatic weighing and feeding device according to claim 1, characterized in that: A sealing mechanism is provided on the discharge port, and the sealing mechanism is used to seal the discharge port. The sealing mechanism includes: a motor fixedly mounted on an outer wall of one side of the material box; a driving shaft rotatably mounted on the material box, and one end of the driving shaft is fixedly connected to the output shaft of the motor; a baffle door fixedly sleeved on the driving shaft, the baffle door is adapted to the discharge port, and the baffle door is used to seal the discharge port.

6. The automatic weighing and feeding device according to claim 1, characterized in that: A conveyor belt is provided on the frame, and the conveyor belt is located below the discharge pipe. The conveyor belt is used to transport the weighed materials for making the asphalt mixture.

7. The automatic weighing and feeding device according to claim 1, characterized in that: A material guide hopper is fixedly mounted on one side outer wall of the material box, the material guide hopper is located on one side of the discharge port, and the material guide hopper is used to guide the screened material.

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