Drop angle adjustable filler feeder

Abstract

This utility model relates to the technical field of building material processing equipment, specifically a filler feeding device for asphalt concrete production, and more particularly to an adjustable-angle filler feeder with functions of angle adjustment, crushing of brittle filler, and sealed conveying; an adjustable-angle filler feeder includes a frame with casters at the bottom; a conveying assembly, inclinedly located at the lower part of the frame, including an auger, a cage sleeved outside the auger, a first motor driving the auger to rotate, a feed hood located at the lower end of the auger, and a discharge hood located at the upper end of the auger; an angle adjustment mechanism including a frame rod and a frame plate welded to the upper part of the frame, a hanging plate and a hanging frame welded to the upper part of the cage, a connecting plate hinged between the hanging plate and the frame plate, and a cylinder with both ends hinged to the frame rod and the hanging frame respectively; the auger inclination angle is adjusted by driving the cage to rotate around the hinge point of the connecting plate through the extension and retraction of the cylinder; a screening and crushing assembly including a discharge hopper located below the frame and a grid plate laid flat on the top of the discharge hopper.

Description

Technical Field

[0001] This utility model relates to the technical field of building material processing equipment, specifically a filler feeding device for asphalt concrete production, and more particularly to an adjustable-angle filler feeder with functions of angle adjustment, crushing of brittle filler and sealed conveying. Background Technology

[0002] In the production process of asphalt concrete, fillers such as mineral powder are prone to moisture absorption and caking, and need to be transported to the mixing equipment by a feeder; however, typical feeders in the existing technology have the following drawbacks: 1. Poor height adaptability: The fixed-angle auger conveyor mechanism cannot adapt to the feeding port of the mixing equipment with different heights, causing the filler to escape due to the height difference when it falls, which not only wastes raw materials but also pollutes the environment; 2. Lack of treatment for compacted filler: The absence of a structure for identifying and breaking up compacted filler allows compacted blocks to directly enter the mixing tank, leading to uneven mixing and reduced compressive strength of asphalt concrete. 3. Dynamic seal failure: When the angle is adjusted using a simple movable connection structure, the connection between the conveying component and the hopper cannot deform due to the rigid material, resulting in poor sealing, packing leakage, and frequent adjustments accelerating interface wear.

[0003] The aforementioned defects severely restrict production efficiency and product quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is: how to simultaneously achieve flexible adaptation of packing height, online crushing of caking packing, and dynamic sealing of moving parts, so as to avoid packing escape, uneven mixing and leakage.

[0005] To address the aforementioned technical problems, this utility model provides a packing feeder with an adjustable drop angle. The auger angle is adjusted by a cylinder-driven plate flipping mechanism, which works in conjunction with a mesh grid for diverting and a rotating plate for crushing brittle packing. The adaptive sealing connection using rubber sleeves enables highly flexible adaptation to the feeding port of mixing equipment, efficient online crushing of brittle packing, and zero leakage throughout the conveying process, significantly improving production quality and efficiency.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: a filler feeder with adjustable drop angle, including a frame with casters at the bottom; a conveying assembly, inclinedly arranged at the lower part of the frame, including an auger, a cage sleeved on the outside of the auger, a first motor driving the auger to rotate, a feed hood at the lower end of the auger and a discharge hood at the upper end of the auger; an angle adjustment mechanism including a frame rod and a frame plate welded to the upper part of the frame, a hanging plate and a hanging bracket welded to the upper part of the cage, a connecting plate hinged between the hanging plate and the frame plate, and a connecting plate with both ends respectively hinged to the frame rod and the cage. The hanging frame has a cylinder; the cylinder extends and retracts to drive the cage to rotate around the hinge point of the connecting plate, thereby adjusting the auger tilt angle; the screening and crushing assembly includes a hopper located below the frame, a grid plate laid flat on top of the hopper, a mesh plate and grid strips inside the hopper, a material box connected to the bottom of the hopper, a shaft placed horizontally inside the material box, a second motor that drives the shaft to rotate, a bushing keyed to the shaft, and circumferentially uniformly welded strips to the bushing; the strips can pass through the gaps between the grid strips to impact the compacted filler; a rubber sleeve is used to seal the connection between the material box and the feed hood.

[0007] The aforementioned adjustable-angle packing feeder has a frame constructed from multiple welded square tubes, with inclined pull tubes added at the joints.

[0008] The aforementioned adjustable-angle packing feeder has an auger tilt angle adjustment range of 30° to 60°.

[0009] The aforementioned adjustable-angle packing feeder consists of a cage made up of two symmetrical upper and lower parts connected by bolts.

[0010] In the aforementioned adjustable-angle packing feeder, the mesh plate is arranged at an incline, allowing unconsolidated packing to fall along the side wall of the hopper through the gaps at the top of the mesh plate.

[0011] In the aforementioned adjustable drop angle packing feeder, the slats periodically pass through the gaps between the grid bars during rotation to perform crushing.

[0012] In the aforementioned adjustable-angle packing feeder, the flexible deformation of the rubber sleeve matches the cage rotation displacement.

[0013] In the aforementioned adjustable-angle packing feeder, the material box and the discharge hopper are connected by bolts.

[0014] The beneficial effects of this utility model are: 1. Highly flexible and adaptable: The cylinder-driven plate flipping mechanism enables continuous adjustment of the auger tilt angle, precisely matching the feeding port height of different mixing equipment and completely solving the problem of filler leakage; 2. Highly efficient treatment of compaction: The mesh and grid strips automatically separate loose and compacted filler, and the rotating strips forcefully break up the compacted blocks, significantly improving the uniformity of the filler and ensuring the quality stability of asphalt concrete; 3. Reliable dynamic sealing: The rubber sleeve adapts to the rotation of the cage, ensuring a complete seal from the material box to the feed hood and completely eliminating the risk of leakage; 4. Overall performance improvement: Significantly improves feeding efficiency, extends equipment maintenance cycle, and is fully compatible with various mixing equipment. Attached Figure Description

[0015] The present invention will be further described below with reference to the embodiments and examples.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment.

[0017] Figure 2 This is a schematic diagram of the conveying component.

[0018] Figure 3 This is a schematic diagram of the auger structure for the conveying component.

[0019] Figure 4 This is a schematic diagram of the structure of the screening and crushing component, including the hopper, grid, screen, material box, and second motor.

[0020] Figure 5 This is a schematic diagram of the screen plate, grid bars, and slats structure of the screening and crushing component.

[0021] Figure 6 This is a schematic diagram of the shaft, bushing, and slat structure of the screening and crushing assembly.

[0022] In the diagram: 1. Frame; 2. Conveying assembly; 201. Screwdriver; 202. Cage; 203. First motor; 204. Feed hood; 205. Discharge hood; 206. Frame rod; 207. Frame plate; 208. Connecting plate; 209. Cylinder; 210. Hanging plate; 211. Hanging frame; 3. Screening and crushing assembly; 301. Discharge hopper; 302. Grid plate; 303. Mesh plate; 304. Grid strip; 305. Material box; 306. Shaft; 307. Second motor; 308. Bushing; 309. Plate strip. Detailed Implementation

[0023] This embodiment details an adjustable-angle filler feeder. Through its unique structural design, this feeder effectively solves the problems of filler compaction affecting asphalt concrete paving quality and adaptability to mixing equipment of different heights. Figure 1-6 As shown, the frame 1 of the feeder serves as the basic support component and is constructed by welding together multiple square tubes. At the joints of the square tubes, inclined tie tubes are added. This design greatly enhances the connection strength of the frame 1, ensuring that the entire feeder is structurally stable and reliable during operation. Casters are installed around the bottom of the frame 1. The design of the casters allows the feeder to be moved and used easily, greatly improving its flexibility and making it easy to adapt to different working environments and location requirements.

[0024] The conveying assembly 2 is inclinedly arranged at the lower part of the frame 1, with its inclination angle set between 30 and 60°, which can be flexibly adjusted according to actual usage requirements. This assembly mainly consists of an auger 201, a cage 202, a first motor 203, a feed hood 204, a discharge hood 205, a support rod 206, a support plate 207, a connecting plate 208, a cylinder 209, a hanging plate 210, and a hanging frame 211. The auger 201 is inclinedly arranged below the frame 1, and the cage 202 is fitted on its outside. The cage 202 adopts a detachable design that is symmetrical from top to bottom and connected by bolts. This design facilitates the installation, maintenance, and inspection of the auger 201. The cage 202 has bearing seats at both ends to support the auger 201, ensuring that the auger 201 can rotate stably. A first motor 203 is arranged at one end of the cage 202. The first motor 203 is connected to the auger 201 through a coupling to provide power for the rotation of the auger 201. One end of the auger 201 is equipped with a downward discharge hood 205, and the other end is equipped with an upward feed hood 204. The horizontal height of the feed hood 204 is lower than the horizontal height of the discharge hood 205. This design is conducive to the smooth conveying of the filler under the action of gravity.

[0025] A frame rod 206 is inclinedly arranged on the upper part of the frame 1 and welded to it. Frame plates 207, welded to the frame 1, are symmetrically arranged on both sides of the frame rod 206. A hanging plate 210 and a hanging bracket 211 are welded to the upper part of the cage 202. The hanging plate 210 and the frame plate 207 are spatially connected by a hinged connecting plate 208. A cylinder 209 is arranged between the hanging bracket 211 and the frame rod 206. The end of the cylinder seat of the cylinder 209 is hinged to the frame rod 206, and the front end of the cylinder rod of the cylinder 209 is hinged to the hanging bracket 211. Next, when it is necessary to adjust the tilt angle of the auger 201, the cylinder rod of the cylinder 209 is pushed or pulled by the extension and retraction operation of the cylinder 209, so that the cage 202 is rotated in space with the connection point of the connecting plate 208 and the frame plate 207 and the hanging plate 210 as the fulcrum, thereby changing the tilt angle of the auger 201. This design allows the discharge hood 205 to be adapted to a variety of mixing equipment of different heights, effectively reducing the loss of raw materials due to the height difference between the equipment when the filler is being mixed and discharged.

[0026] The screening and crushing assembly 3 is arranged on the frame 1 and is used to physically disperse the agglomerated packing material to improve its quality. This assembly mainly consists of a hopper 301, a grid plate 302, a mesh plate 303, grid bars 304, a material box 305, a shaft 306, a second motor 307, a bushing 308, and slats 309. The hopper 301 has a frustoconical structure that is wider at the top and narrower at the bottom, and is located below the frame 1. The top of the hopper is covered with a grid plate 302, which serves to initially filter large particles of impurities and simultaneously provide stability for the packing material. The falling channel has inclined mesh plates 303 and grid bars 304 arranged inside the hopper 301. There are gaps between the grid bars 304. This design allows the filler to be diverted according to its own state during the falling process. Uncrushed filler can fall directly to the bottom along the side wall of the hopper 305 along the gaps in the upper part of the mesh plate 303, eliminating the process of contact with subsequent crushing parts and improving processing efficiency. Crushed filler, limited by particle size, can only move to the grid bars 304 and physically collide with subsequent crushing parts.

[0027] The material box 305 is arranged below the discharge hopper 301 and is connected to the discharge hopper 301 by bolts. Inside the material box 305, there is a horizontally placed shaft 306 connected to it by a bearing seat. The upper part of the shaft 306 is fitted with a bushing 308 that is keyed to it. The bushing 308 is a square column structure. Along its circumferential direction, welded strips 309 are evenly and spaced on the outside of the bushing 308. The strips 309 can pass through the gaps between the grid bars 304. A second motor 307 is set on the outside of the material box 305 and keyed to the shaft 306. When the second motor 307 is started, it drives the shaft 306 to rotate the bushing 308 and the strips 309. The strips 309 physically impact and disperse the clumped filler between the grid bars 304 to break up the clumped filler.

[0028] Since the material box 305 of the screening and crushing component 3 needs to send the filler to the feed hood 204 of the conveying component 2, and the cage 202 of the conveying component 2 needs to achieve spatial movement, in order to ensure the sealing between the two, a rubber sleeve is used between the material box 305 and the feed hood 204 to achieve a sealed connection. The rubber material itself has good flexibility and can cooperate with the conveying component 2 to make appropriate deformations, so as to ensure the sealing without affecting the angle adjustment function of the conveying component 2.

[0029] The method of using the adjustable drop angle packing feeder described in this embodiment is as follows: 1. Equipment Positioning and Preliminary Adjustment: Use the casters at the bottom of the frame 1 to move the entire feeder to the predetermined working position, bringing it close to the filler inlet of the target asphalt concrete mixing equipment. Adjust the tilt angle of the conveying assembly 2 in advance according to the actual height of the filler inlet of the mixing equipment. During operation, control the extension and retraction of the cylinder 209: when the cylinder rod of the cylinder 209 extends, it pushes the hinged bracket 211; when the cylinder rod retracts, it pulls the bracket 211. Since the bracket 211 is welded and fixed to the cage 202, and the hanging plate 210 and the frame plate 207 are connected by a hinged connecting plate 208, and the frame plate 207 is welded to the frame 1, the support rod 206... It is also welded to the frame 1 and serves as the hinge point at the end of the cylinder seat of cylinder 209. Therefore, the action of cylinder 209 will drive the cage 202 (together with the internal auger 201) to rotate in space with the hinge point between the connecting plate 208 and the frame plate 207, and between the connecting plate 208 and the hanging plate 210 as the fulcrum. During the adjustment process, observe the height and orientation of the outlet of the discharge hood 205 of the conveying component 2 until it reaches a position that is well matched with the filling port of the mixing equipment (usually it is required to be aligned and slightly higher than the edge of the filling port or extend into it) to ensure that the subsequent filling can fall smoothly into the mixing equipment and reduce the dispersion. The inclination angle of auger 201 can be flexibly set in the range of 30 degrees to 60 degrees.

[0030] 2. Feeding and Screening of Filler Material: The filler material to be fed (such as mineral powder, limestone powder, etc.) is poured into the hopper 301 at the top of the screen crushing assembly 3. The filler material first passes through the grid plate 302 laid flat at the top of the hopper 301, where large particles of impurities are initially intercepted. After entering the hopper 301, the filler material is diverted according to its state: Unconsolidated loose filler: can pass smoothly through the gap in the upper part of the inclined mesh plate 303 inside the hopper 301, and slide directly down the side wall of the hopper 305 to the bottom of the hopper 305; Clumped blocky filler: Due to the limited particle size, it cannot pass through the upper gap of the mesh plate 303 and can only slide down to the grid area 304; The drive motor of the screening and crushing assembly 3 is started, which drives the shaft 306 to rotate. The shaft 306 is connected by a key to drive the square bushing 308 on it to rotate. The strips 309 welded to the outer circumference of the bushing 308 and evenly spaced along the circumference rotate at high speed. The rotating strips 309 periodically pass through the gaps between the grid strips 304, which strongly impacts, shears and crushes the clumped filler stuck in the grid strip 304 area, dispersing it into fine particles that meet the process requirements. The crushed filler also falls into the bottom of the material box 305.

[0031] 3. Filler conveying to the mixing equipment: Start the drive motor of the conveying component 2. The motor drives the auger 201 to rotate stably inside the cage 202 via a coupling. The filler (including loose filler that falls directly and filler that has been crushed) that has accumulated at the bottom of the material box 305 enters the feed hood 204 of the conveying component 2 under the action of gravity through the rubber sleeve sealing channel connecting the material box 305 and the feed hood 204 of the conveying component 2. The feed hood 204 is designed to be at a lower level than the discharge hood 205. Under the influence of gravity, the filler naturally flows to the starting end (feed end) of the auger 201. The rotating blades of the auger 201 continuously push the filler entering the feed hood 204 in an upward inclined direction. The filler is stably conveyed in the sealed cage 202 and finally discharged from the higher discharge hood 205. Since the angle adjustment has been completed in step 1, the outlet of the discharge hood 205 is precisely aligned with the filler feeding port of the mixing equipment. The conveyed filler is directly and continuously fed into the mixing equipment to participate in the subsequent asphalt concrete mixing process.

[0032] 4. Operation Monitoring and Dynamic Adjustment: During equipment operation, observe whether the packing material falls smoothly in the screen crushing component 3 and whether the crushing effect is good, ensuring that there is no serious blockage. At the same time, observe whether the conveying of the auger 201 is stable and whether the discharge is continuous and uniform. If it is necessary to temporarily change the position of the packing material drop point or adapt to another mixing device with a different height, the cylinder 209 can be operated at any time in the running (with attention to safety) or paused state, according to the method described in step 1, to quickly adjust the tilt angle of the auger 201 and the discharge hood 205 to adapt to the new height requirements. The rubber sleeve connecting the material box 305 and the feed hood 204 has good flexibility and can undergo adaptive deformation during the angle adjustment process, always maintaining a sealed connection between the two, effectively preventing the packing material from leaking at the connection.

[0033] The adjustable-angle packing feeder of this embodiment, through the rational design of the frame 1, conveying component 2 and screening and crushing component 3, achieves efficient conveying of packing and effective crushing of caking packing. At the same time, it has an adjustable angle function, which can be adapted to mixing equipment of different heights, and has high practical value and promotion significance.

Claims

1. A packing feeder with adjustable drop angle, characterized in that: include The frame is equipped with casters at the bottom; The conveying assembly is inclinedly located at the lower part of the frame and includes an auger, a cage sleeved outside the auger, a first motor that drives the auger to rotate, a feed hood located at the lower end of the auger, and a discharge hood located at the upper end of the auger. The angle adjustment mechanism includes a frame rod and frame plate welded to the upper part of the frame, a hanging plate and hanging frame welded to the upper part of the cage, a connecting plate hinged between the hanging plate and the frame plate, and a cylinder with both ends hinged to the frame rod and the hanging frame respectively; the cylinder drives the cage to rotate around the hinge point of the connecting plate by extending and retracting, thereby realizing the adjustment of the auger tilt angle. The screening and crushing assembly includes a hopper located below the frame, a grid plate laid flat on top of the hopper, a mesh plate and grid strips located inside the hopper, a material box connected to the bottom of the hopper, a shaft horizontally placed inside the material box, a second motor driving the shaft to rotate, a bushing keyed to the shaft, and slats uniformly welded to the bushing circumferentially; the slats can pass through the gaps between the grid strips to impact the compacted filler. The rubber sleeve is made of rubber and is used to seal the connection between the material box and the feed hood.

2. The adjustable drop angle packing feeder according to claim 1, characterized in that: The frame is constructed by welding multiple square tubes, with diagonal tie rods added at the joints.

3. The adjustable drop angle packing feeder according to claim 1, characterized in that: The tilt angle adjustment range of the auger is 30° to 60°.

4. The adjustable drop angle packing feeder according to claim 1, characterized in that: The cage is composed of two symmetrical parts connected by bolts.

5. The adjustable-angle packing feeder according to claim 1, characterized in that: The mesh plate is arranged at an angle, and the unconcreted filler can fall down along the side wall of the material box through the gap at the top of the mesh plate.

6. The adjustable drop angle packing feeder according to claim 1, characterized in that: The slats periodically pass through the gaps between the slats during rotation, causing them to break.

7. The adjustable drop angle packing feeder according to claim 1, characterized in that: The flexible deformation of the rubber sleeve matches the cage's overturning displacement.

8. The adjustable drop angle packing feeder according to claim 1, characterized in that: The hopper and the discharge hopper are connected by bolts.

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