Automatic feeding device for SMA fiber material of recycled asphalt material

Abstract

The utility model relates to an automatic feeding device for an SMA fiber material of a recycled asphalt material, and belongs to the technical field of feeding devices. The device comprises a bottom frame, a spiral feeder is arranged on the bottom frame, a supporting mechanism on one side of the spiral feeder comprises a side plate and a fixing plate, a moving mechanism above the supporting mechanism is provided with a pair of moving boxes, a quantifying mechanism is arranged between the moving boxes, a quantifying barrel of the quantifying mechanism is in sliding connection with moving grooves of the moving boxes, and a bottom cover with a weighing sensor is hinged to the bottom side of the quantifying barrel. The bottom cover abuts against the fixing plate. According to the device, through the spiral feeder, the weighing sensor, the moving mechanism and the touch panel, accurate measurement and automatic operation in the SMA fiber material feeding process are achieved, the problem that manual feeding and metering are not accurate is effectively solved, and the performance index of a recycled asphalt material is improved.

Description

Technical Field

[0001] This utility model relates to the field of dispensing device technology, and in particular to an automatic dispensing device for SMA fiber material of recycled asphalt. Background Technology

[0002] SMA (Stone Mastic Asphalt Mixture) is a mixture formed by filling a discontinuously graded aggregate skeleton with asphalt mastic binder composed of asphalt, mineral powder, and fiber stabilizer. In road construction, SMA is widely used due to its excellent performance. The addition of fiber materials to SMA is crucial, as it enhances the performance of the mixture.

[0003] Based on the above, the inventors have discovered the following problems: Currently, in the production process of recycled asphalt, the addition of SMA fiber material is generally divided into manual addition and equipment addition. Manual addition involves significant human error and lacks precise measurement methods. On the construction site, workers often rely on simple measuring tools or rough estimations to determine the amount to be added. This method makes it difficult to accurately control the amount of SMA fiber material used, and deviations in the amount added may prevent the recycled asphalt from achieving the expected performance indicators. Traditional equipment addition uses a dispersing pneumatic conveying device, which is currently the most widely used SMA fiber addition device in my country. This device disperses the packaged fibers, measures their volume, and then uses pneumatic conveying to enter the mixing plant. This volumetric measurement method is difficult to guarantee accuracy, cannot monitor the addition amount in real time, and is prone to fiber entanglement and blockage, resulting in a high equipment failure rate.

[0004] In summary, this study investigates and improves the structure and shortcomings of existing devices, and provides an automatic dispensing device for SMA fiber material in recycled asphalt, aiming to achieve greater practical value. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic dispensing device for SMA fiber material in recycled asphalt, which realizes accurate measurement of SMA fiber material during the dispensing process, ensures sufficient dispersion of fiber material, timely and reliable dispensing, and improves the performance indicators of SMA mixture.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic dispensing device for SMA fiber material in recycled asphalt, comprising:

[0007] A base frame, on one side of the upper end of which a screw feeder is mounted;

[0008] A support mechanism is provided on one side of the screw feeder. The support mechanism includes a side plate, one side of which is connected to the bottom side of the screw feeder, and a fixing plate is installed on the bottom side of the side plate.

[0009] A moving mechanism is provided at the upper end of the support mechanism. The moving mechanism includes a pair of moving boxes, which are respectively provided on both sides of the side plate. Moving slots are provided on both opposite sides of the pair of moving boxes. A transmission box is installed on one side of the upper end of the pair of moving boxes.

[0010] A metering mechanism is disposed between a pair of movable boxes. The metering mechanism includes a metering cylinder, the two sides of which are slidably connected to a pair of movable slots respectively. A bottom cover is hinged to the bottom side of the metering cylinder. A weighing sensor is embedded in the upper end face of the bottom cover. The bottom end of the bottom cover abuts against the upper end face of the fixed plate.

[0011] Furthermore, a first inclined groove is provided on the upper end of one side of the fixing plate, and a second inclined groove adapted to the first inclined groove is provided on the bottom side of the bottom cover. Support rods are installed on both sides of the first inclined groove, and one end of a pair of support rods is connected to the bottom side of a pair of movable boxes respectively.

[0012] Furthermore, each of the moving grooves is rotatably connected to a screw, and each screw is threaded with a slider. One side of each pair of sliders is connected to both sides of the metering cylinder.

[0013] Preferably, a first bevel gear is fitted onto one end of each screw, and a second bevel gear is rotatably connected to the upper side of the inner side of each movable groove, with the first bevel gear and the second bevel gear meshing with each other.

[0014] Preferably, a retainer is installed on both sides of the inside of the transmission box, and a rotating shaft is rotatably connected to the outside of each retainer. One end of each pair of rotating shafts is rotatably connected to both ends of the inside of the transmission box.

[0015] Preferably, one end of the second bevel gear extends through the moving box and the transmission box into the interior in sequence, and is fitted with a third bevel gear on each end. The rotating shaft is fitted with a fourth bevel gear on the side close to the third bevel gear, and the fourth bevel gear meshes with the third bevel gear.

[0016] Preferably, a dual-axis motor is installed inside the transmission box between a pair of cages, and the two output ends of the dual-axis motor are respectively connected to a pair of rotating shafts.

[0017] Furthermore, a feed pipe is installed on one side of the upper end of the screw feeder, and a discharge pipe is installed on the bottom side of the screw feeder.

[0018] Furthermore, a touch panel is installed on one side of the screw feeder, and the touch panel is electrically connected to the screw feeder, the dual-axis motor and the weighing sensor via wires.

[0019] The beneficial effects of this utility model are as follows:

[0020] This invention utilizes a screw feeder to thoroughly disperse the fiber material, facilitating its transport. The fiber material is then fed into a metering cylinder via the screw feeder, and a weighing sensor embedded at the bottom of the cylinder weighs the material entering the cylinder, thus accurately measuring the amount of fiber material added. This improves the accuracy of the dispensing process and enables precise measurement of SMA fiber material during dispensing. A touch panel receives signals from the weighing sensor to control the screw feeder's feeding process and the forward and reverse rotation of the dual-axis motor, achieving automated operation of the entire automatic dispensing device and real-time monitoring of the fiber material addition amount.

[0021] This invention features a moving mechanism that allows the metering cylinder to move. As the cylinder moves, its hinged bottom cover automatically opens due to separation from the fixed plate, allowing the fiber material inside to fall into the mixing tank, thus completing the feeding process and achieving automatic metering. By incorporating a first and second inclined groove, after feeding, the metering cylinder moves back, and the second inclined groove on the bottom of the cover contacts the first inclined groove on the fixed plate, smoothly closing the cover. This facilitates repeated weighing and feeding of the fiber material. This invention provides convenient operation when feeding fiber material, reduces the likelihood of fiber entanglement and blockage, and lowers the equipment failure rate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall side structure of the device of this utility model;

[0024] Figure 3 This is a schematic diagram of the overall overhead structure of the device of this utility model;

[0025] Figure 4 This is a schematic diagram of the side cross-sectional structure of the movable box of the present invention;

[0026] Figure 5 This is a top-section structural diagram of the transmission box of the present invention.

[0027] The correspondence between the labels and component names in the attached figures is as follows:

[0028] 100. Base frame; 101. Screw feeder; 102. Feed pipe; 103. Discharge pipe; 104. Support mechanism; 10401. Side plate; 10402. Fixing plate; 10403. Support rod; 10404. First inclined groove; 105. Moving mechanism; 10501. Moving box; 10502. Moving slot; 10504. Transmission box; 10505. Screw; 10506. Slider; 10507. First bevel gear; 10508. Second bevel gear; 10509. Third bevel gear; 10510. Rotating shaft; 10511. Fourth bevel gear; 10512. Dual-axis motor; 10513. Cage; 106. Metering mechanism; 10601. Metering cylinder; 10602. Bottom cover; 10603. Weighing sensor; 107. Touch panel. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Please see Figure 1-5The present invention provides an embodiment of an automatic feeding device for SMA fiber material of recycled asphalt, comprising a base frame 100, a screw feeder 101 mounted on one side of the upper end of the base frame 100, a support mechanism 104 provided on one side of the screw feeder 101, a moving mechanism 105 provided on the upper end of the support mechanism 104, the support mechanism 104 including a side plate 10401, one side of the side plate 10401 being connected to the bottom side of the screw feeder 101, a fixed plate 10402 mounted on the bottom side of the side plate 10401, and the moving mechanism 105 including a pair of moving boxes 10501, the pair of moving boxes 10501 being respectively disposed on the side plate 104. On both sides of 01, a pair of movable boxes 10501 have movable slots 10502 on their two opposite sides. A transmission box 10504 is installed on one side of the upper end of the pair of movable boxes 10501. A quantitative mechanism 106 is provided between the pair of movable boxes 10501. The quantitative mechanism 106 includes a quantitative cylinder 10601. The two sides of the quantitative cylinder 10601 are slidably connected to the pair of movable slots 10502 respectively. A bottom cover 10602 is hinged to the bottom side of the quantitative cylinder 10601. A weighing sensor 10603 is embedded in the upper end of the bottom cover 10602. The bottom end of the bottom cover 10602 abuts against the upper end of the fixed plate 10402.

[0033] A first inclined groove 10404 is provided on the upper side of one side of the fixed plate 10402, and a second inclined groove adapted to the first inclined groove 10404 is provided on the bottom side of the bottom cover 10602. Support rods 10403 are installed on both sides of the first inclined groove 10404, and one end of a pair of support rods 10403 is connected to the bottom side of a pair of movable boxes 10501 respectively.

[0034] The moving groove 10502 is rotatably connected to a screw 10505, and a slider 10506 is threaded onto each screw 10505. One side of a pair of sliders 10506 is connected to both sides of the metering cylinder 10601.

[0035] One end of the screw 10505 is fitted with a first bevel gear 10507, and the upper side of the inside of the moving groove 10502 is rotatably connected with a second bevel gear 10508. The first bevel gear 10507 and the second bevel gear 10508 mesh with each other.

[0036] The transmission box 10504 has a retainer 10513 installed on both sides inside. The outer side of the retainer 10513 is rotatably connected to a rotating shaft 10510. One end of the pair of rotating shafts 10510 is rotatably connected to the two ends inside the transmission box 10504 respectively.

[0037] One end of the second bevel gear 10508 extends through the moving box 10501 and the transmission box 10504 into the interior, and is fitted with a third bevel gear 10509. The rotating shaft 10510 is fitted with a fourth bevel gear 10511 on the side close to the third bevel gear 10509. The fourth bevel gear 10511 meshes with the third bevel gear 10509.

[0038] Inside the transmission box 10504, between a pair of retainers 10513, a dual-axis motor 10512 is installed. The two output ends of the dual-axis motor 10512 are respectively connected to a pair of rotating shafts 10510.

[0039] A feed pipe 102 is installed on one side of the upper end of the screw feeder 101, and a discharge pipe 103 is installed on the bottom side of the screw feeder 101.

[0040] A touch panel 107 is installed on one side of the screw feeder 101. The touch panel 107 is electrically connected to the screw feeder 101, the dual-axis motor 10512 and the weighing sensor 10603 via wires.

[0041] The device is used as follows: When in use, the fiber material enters the screw feeder 101 through the feed pipe 102. The screw feeder 101 transports the fiber material from the feed pipe 102 to the discharge pipe 103, and finally into the metering cylinder 10601. The fiber material entering the metering cylinder 10601 is weighed by the weighing sensor 10603 embedded in the bottom cover 10602. The fiber material is continuously fed by the screw feeder 101, and the weighing sensor 10603 monitors the weight in real time. When the preset weight is reached, the touch panel 107 receives the signal from the weighing sensor 10603 and controls the screw feeder 101 to stop feeding, achieving accurate weighing of the fiber material. When fiber material needs to be added, the touch panel 107 controls the dual-axis motor 10512 to start. The dual-axis motor 10512 drives the rotating shaft 10510 to rotate. The fourth bevel gear 10511 on the rotating shaft 10510 meshes with the third bevel gear 10509, driving the third bevel gear 10509 to rotate. When the third bevel gear 10509 rotates, the second bevel gear 10508 rotates synchronously, which in turn causes the first bevel gear 10507, which meshes with it, to rotate, driving the screw 10505 to rotate. The screw 10505 rotates, causing the slider 10506, which is threadedly connected to it, to move. Since the slider 10506 is connected to both sides of the metering cylinder 10601, the metering cylinder 10601 slides along the moving groove 10502. When the metering cylinder 10601 moves, the bottom cover 10602, which is hinged to its bottom side, automatically opens because it is separated from the fixed plate 10402, and the fiber material in the metering cylinder 10601 falls into the mixing tank, thus completing the feeding of the fiber material. After feeding is completed, the dual-axis motor 10512 rotates in the reverse direction, causing the metering cylinder 10601 to move back. The second inclined groove on the bottom side of the bottom cover 10602 contacts the first inclined groove 10404 on the fixed plate 10402, which can smoothly close the bottom cover 10602, facilitating the weighing and feeding of fiber materials again. The touch panel 107 is electrically connected to the screw feeder 101, the dual-axis motor 10512 and the weighing sensor 10603 through wires. It is responsible for receiving the signal from the weighing sensor 10603 and controlling the feeding process of the screw feeder 101 and the forward and reverse rotation of the dual-axis motor 10512 to realize the automated operation and precise control of the entire automatic feeding device.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic dispensing device for SMA fiber material in recycled asphalt, characterized in that, include: A base frame, on one side of the upper end of which a screw feeder is mounted; A support mechanism is provided on one side of the screw feeder. The support mechanism includes a side plate, one side of which is connected to the bottom side of the screw feeder, and a fixing plate is installed on the bottom side of the side plate. A moving mechanism is provided at the upper end of the support mechanism. The moving mechanism includes a pair of moving boxes, which are respectively provided on both sides of the side plate. Moving slots are provided on both opposite sides of the pair of moving boxes. A transmission box is installed on one side of the upper end of the pair of moving boxes. A metering mechanism is disposed between a pair of movable boxes. The metering mechanism includes a metering cylinder, the two sides of which are slidably connected to a pair of movable slots respectively. A bottom cover is hinged to the bottom side of the metering cylinder. A weighing sensor is embedded in the upper end face of the bottom cover. The bottom end of the bottom cover abuts against the upper end face of the fixed plate.

2. The automatic dispensing device for SMA fiber material in recycled asphalt as described in claim 1, characterized in that: A first inclined groove is provided on the upper end of one side of the fixed plate, and a second inclined groove adapted to the first inclined groove is provided on the bottom side of the bottom cover. Support rods are installed on both sides of the first inclined groove, and one end of a pair of support rods is connected to the bottom side of a pair of movable boxes respectively.

3. The automatic dispensing device for SMA fiber material in recycled asphalt as described in claim 1, characterized in that: Each of the moving grooves is rotatably connected to a screw, and each screw is threaded with a slider. One side of each pair of sliders is connected to both sides of the metering cylinder.

4. The automatic dispensing device for SMA fiber material in recycled asphalt as described in claim 3, characterized in that: One end of each screw is fitted with a first bevel gear, and the upper side of the inside of each movable groove is rotatably connected with a second bevel gear, with the first bevel gear and the second bevel gear meshing with each other.

5. The automatic dispensing device for SMA fiber material in recycled asphalt as described in claim 4, characterized in that: The transmission box has retainers installed on both sides inside, and a rotating shaft is rotatably connected to the outer side of each retainer. One end of each pair of rotating shafts is rotatably connected to both ends inside the transmission box.

6. The automatic dispensing device for SMA fiber material in recycled asphalt as described in claim 5, characterized in that: One end of the second bevel gear passes through the moving box and the transmission box in sequence and extends into the interior, and is fitted with a third bevel gear on each of them. The rotating shaft is fitted with a fourth bevel gear on the side close to the third bevel gear, and the fourth bevel gear meshes with the third bevel gear.

7. An automatic dispensing device for SMA fiber material in recycled asphalt as described in claim 6, characterized in that: A dual-axis motor is installed inside the transmission box between a pair of cages, and the two output ends of the dual-axis motor are respectively connected to a pair of rotating shafts.

8. The automatic dispensing device for SMA fiber material in recycled asphalt as described in claim 1, characterized in that: The screw feeder has a feed pipe installed on one side of its upper end and a discharge pipe installed on its bottom side.

9. An automatic dispensing device for SMA fiber material in recycled asphalt as described in claim 1, characterized in that: A touch panel is installed on one side of the screw feeder, and the touch panel is electrically connected to the screw feeder, the dual-axis motor and the weighing sensor via wires.

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