Feeding device system

Abstract

The invention provides a feeding device system. The feeding device system comprises a feeding unit. The feeding unit comprises a hopper and a charging barrel which are sequentially arranged in the vertical direction; the bottom of the hopper is connected with the top of the charging barrel; a feeding hole is formed in the top of the hopper; a discharging hole is formed in the bottom of the charging barrel; the feeding unit further comprises a feeding spiral shaft; the feeding spiral shaft penetrates through the hopper and the charging barrel from top to bottom; the tail end of the feeding screw shaft is higher than the discharge hole; a pore plate is arranged at the discharge hole; the feeding spiral shaft is controlled by a servo motor, and the rotating speed is continuously adjustable. The tail end of the feeding screw shaft is higher than the discharge port, so that the situation that the blades of the feeding screw shaft scatter and fall powder with low specific gravity at the tail end of the discharge port is avoided, the hole plate arranged at the discharge port is matched, materials form mouse holes between the tail end of the feeding screw shaft and the discharge port, and the materials around the mouse holes are stable and do not collapse; the powder material is filled into the sagger through the mouse hole, so that the problem of powder scattering is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of material filling, in particular to the filling of powder particles, and more particularly to a feeding device system. Background Art

[0002] Feeding, the process of dispensing powder materials into sagger containers, is an essential step in the powder granulation process. Because powder particles are mostly micron-sized and lightweight, it's difficult to control scattering and waste during the feeding process, directly impacting product yield. Furthermore, feeding accuracy directly impacts the consistency of subsequent processes. For example, in the case of sintering, feeding accuracy affects the physical and chemical properties of the sintered powder. Therefore, a rational design of the feeding station equipment structure is crucial.

[0003] CN104309828A discloses an automatic bowl loading machine, comprising an automatic spiral feeder, an automatic loading box, a rail conveyor line, a bowl, and a bag dust collector. The automatic loading box comprises a mobile feeder, a pressure plate, a work platform, and a sealing cover. The sealing cover is mounted on the work platform and has a discharge port at one end. The sealing cover controls the powder in the automatic spiral feeder to be conveyed through the mobile feeder and discharge port to the bowl for distribution and leveling. The bag dust collector is connected to the sealing cover via a pipe. This invention uses the bag dust collector and the sealing cover to promptly remove spilled material, resulting in minimal pollution. However, it cannot prevent material spillage at the source.

[0004] CN112027719A discloses a feeding device for a potting machine, comprising a bulking frame within which are disposed a plurality of bulking blades spaced along the length or width of the frame. Specifically, the bulking blades are arranged symmetrically relative to a vertical midplane at a 45° angle, and the bulking blades within the upper and lower bulking frames are arranged crosswise at 90° angles. After material is discharged from the feeding port of the potting machine and into the feeding device, it is blocked and dispersed by the bulking frames within the feeding device, and then slowly and evenly falls into the potting machine. This results in more uniform feeding, further mitigates the drop in material discharge, and reduces dust during the potting process. This invention achieves uniform feeding and reduces dust by utilizing a specially designed bulking frame structure that requires the coordinated use of the upper and lower bulking frames.

[0005] Therefore, it is of great significance to provide a feeding device system with a simple structure that can effectively improve powder scattering. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a feeding device system, which prevents the blades of the feeding screw shaft from breaking up and dropping the low-specific-gravity powder at the end of the discharge port by setting the end of the feeding screw shaft higher than the discharge port, and cooperates with the orifice plate set at the discharge port to form a rathole between the end of the screw shaft and the discharge port. The material around the rathole is stable and does not collapse, and the powder material is filled into the sagger through the rathole, which effectively improves the problem of powder scattering.

[0007] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a feeding device system, the feeding device system comprising a feeding unit; the feeding unit comprising a hopper and a barrel arranged in sequence along a vertical direction;

[0009] The bottom of the hopper is connected to the top of the barrel; the top of the hopper is provided with a feed port, and the bottom of the barrel is provided with a discharge port;

[0010] The feeding unit also includes a feeding screw shaft; the feeding screw shaft penetrates the hopper and the barrel from top to bottom; the end of the feeding screw shaft is higher than the discharge port; the discharge port is provided with a perforated plate; the feeding screw shaft is controlled by a private motor, and the speed is continuously adjustable.

[0011] The present invention sets a feeding device system in a vertical direction, and sets the end of the feeding screw shaft of the feeding device system higher than the discharge port, so that a blank distance is ensured between the end of the feeding screw shaft and the discharge port to prevent the blades of the feeding screw shaft from breaking up and dropping the powder with low specific gravity at the end of the discharge port. In conjunction with the orifice plate set at the discharge port, a rat hole is formed between the end of the screw shaft and the discharge port, and the material around the rat hole is stable and does not collapse. The powder material is filled into the sagger through the rat hole, which effectively improves the problem of powder scattering.

[0012] In the present application, the feeding screw shaft is controlled by a servo motor, and the speed is continuously adjustable, thereby ensuring that the feeding speed is continuously adjustable.

[0013] As a preferred technical solution of the present invention, the orifice plate has a central hole and an array of through holes radiating outward from the central hole, and the diameter of the central hole is greater than 10 mm and smaller than the diameter of the discharge port.

[0014] The discharge port diameter in the present invention refers to the inner diameter of the discharge port, and its size is designed according to the agglomeration properties of the material, so that the material falling from the end of the feeding screw shaft can form a rat hole at the discharge port.

[0015] Preferably, the diameter of the discharge port is greater than 50 mm, for example, it can be 50 mm, 55 mm, 60 mm, 65 mm, 70 mm or 75 mm.

[0016] Preferably, the number of through holes in the through hole array is 3 or more, for example, it can be 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or 20.

[0017] As a preferred technical solution of the present invention, the distance between the bottom end of the feeding screw shaft and the discharge port is more than 20 mm, for example, it can be 20 mm, 25 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm or 100 mm, including but not limited to the listed values, and other unlisted values within the numerical range are also applicable.

[0018] As a preferred technical solution of the present invention, a material level meter is provided inside the hopper, and the material level meter is used to control the material level in the hopper.

[0019] As a preferred technical solution of the present invention, a stirring mechanism is further provided inside the hopper, and the stirring mechanism is used to break the arch of the material.

[0020] Preferably, the feeding screw shaft and the stirring mechanism are both driven by a gear motor and controlled by a servo motor.

[0021] Preferably, the stirring mechanism and the feeding screw shaft adopt a coaxial structure design, and the stirring mechanism adopts a bevel gear transmission design.

[0022] Preferably, the feeding screw shaft and the stirring mechanism rotate in opposite directions.

[0023] As a preferred technical solution of the present invention, the feeding unit further includes a flap mechanism arranged at the discharge port, the flap mechanism includes a flap, a rotating cylinder and a lifting cylinder, and the flap mechanism is used to control the opening and closing of the discharge port.

[0024] As a preferred technical solution of the present invention, the feeding device system further includes a bowl loading unit, and the bowl loading unit includes a sagger tray.

[0025] As a preferred technical solution of the present invention, a weighing sensor is provided at the bottom of the sagger tray.

[0026] As a preferred technical solution of the present invention, the bowl loading unit further includes a motorized roller, which is used to transport the bowls.

[0027] As a preferred technical solution of the present invention, the sagger loading unit further includes a servo electric cylinder, which is used to control the lifting of the sagger, and the lifting speed and height of the sagger are continuously adjustable.

[0028] Preferably, during the sagger filling process, the servo electric cylinder controls the sagger to descend, and adjusts the distance between the discharge port and the highest horizontal surface of the material in the sagger.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The present invention arranges a feeding device system in a vertical direction. By placing the end of the feeding screw shaft of the feeding device system higher than the discharge port, a blank distance is ensured between the end of the feeding screw shaft and the discharge port to prevent the blades of the feeding screw shaft from breaking up and dropping low-specific-gravity powder at the end of the discharge port. In conjunction with the orifice plate arranged at the discharge port, a rathole is formed between the end of the screw shaft and the discharge port. The material around the rathole is stable and does not collapse. The powder material is filled into the sagger through the rathole, effectively improving the problem of powder scattering. The lifting speed and height of the tray are continuously adjustable. During the filling process, the electric cylinder slowly descends to ensure a reasonable height difference between the discharge port and the material filled into the sagger to prevent material scattering. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the structure of the feeding device system provided in Example 1.

[0032] Figure 2 It is a structural diagram of the orifice plate.

[0033] Figure 3 It is a structural diagram of the feeding unit.

[0034] Among them, 1-feeding unit; 11-hopper; 12-barrel; 13-feeding port; 14-level meter; 15-stirring mechanism; 16-feeding screw shaft; 17-discharging port; 18-orifice plate; 19-flip mechanism; 191-flip; 192-rotating cylinder; 193-lifting cylinder; 2-bowl loading unit; 21-sagger tray; 22-motorized roller; 23-servo electric cylinder; 24-weighing sensor. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described below by way of specific embodiments. It should be understood by those skilled in the art that the embodiments are merely to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. In the description of the embodiments of this application, "a plurality" means more than two, unless otherwise specifically defined.

[0037] In a specific embodiment, the present invention provides a feeding device system, which includes a feeding unit, and the feeding unit includes a hopper and a barrel arranged in sequence along the vertical direction, wherein the bottom of the hopper is connected to the top of the barrel, and a feed port is provided on the top of the hopper, and the powder particle material mixed evenly upstream enters the hopper through the feed port; a level meter is provided inside the hopper to control the material level in the hopper, and the upstream feeds the material when the material level is low, and the upstream feed is stopped when the material level is high; a stirring mechanism is also provided inside the hopper, and the stirring mechanism is used to break the material arch; the feeding unit also includes a feeding screw shaft running through the hopper and the barrel from top to bottom, and is used to evenly transport the powder material in the barrel to the sagger; the feeding screw shaft is controlled by a servo motor, and the speed and feeding amount are continuously adjustable; the stirring mechanism and the feeding screw shaft adopt a coaxial structure design, and the stirring mechanism adopts a bevel gear transmission design. The stirring mechanism and the feeding screw shaft run in opposite directions to avoid stratification of two or more evenly mixed powder material particles.

[0038] A discharge port is provided at the bottom of the barrel, and the diameter of the discharge port is greater than 50 mm; the discharge port is provided with a perforated plate, which has a central hole and an array of through holes radiating outward from the central hole, and the diameter of the central hole is greater than 10 mm and smaller than the diameter of the discharge port, and the number of through holes in the through hole array is greater than 3.

[0039] The end of the feeding screw shaft is higher than the discharge port. For example, the distance between the bottom end of the feeding screw shaft and the discharge port is more than 20 mm, ensuring that there is a blank distance between the end of the feeding screw shaft and the discharge port to prevent the blades of the feeding screw shaft from breaking up the low specific gravity powder at the end of the discharge port.

[0040] In the present invention, when the material is conveyed to the discharge port by the feeding screw, a rathole is formed between the end of the screw shaft and the discharge port. The material around the rathole is stable and does not collapse. The powder material is filled into the sagger through the rathole, which effectively improves the problem of powder scattering.

[0041] In some embodiments, the feeding unit also includes a flap mechanism arranged at the discharge port, including a flap, a rotating cylinder and a lifting cylinder. When not feeding, the rotating cylinder rotates the flap into place, and the lifting cylinder lifts the flap and seals it with the discharge port to block the discharge port.

[0042] In some embodiments, the feeding device system also includes a filling unit, which includes a sagger. A weighing sensor is provided at the bottom of the sagger. The weighing sensor is used to detect the weight of the material filled in the sagger. When the weight reaches the target value, the feeding screw shaft stops feeding and the flap mechanism blocks the discharge port.

[0043] In some embodiments, the filling unit further includes a motorized roller, which is used to transport the saggers, transporting the saggers filled with materials to the next station, and transporting the empty saggers to the corresponding position of the discharge port.

[0044] In some embodiments, the sagger loading unit further includes a servo electric cylinder for controlling the raising and lowering of the sagger. The raising and lowering speed and height of the sagger are continuously adjustable to adjust the feeding height. During use, the sagger is first raised to the initial feeding height. During the feeding process, the sagger is slowly lowered to adjust the feeding height. The speed at which the servo electric cylinder raises and lowers the sagger, as well as the feeding height, can be set according to the usage.

[0045] Example 1

[0046] This embodiment provides a feeding device system, such as Figure 1 As shown:

[0047] The feeding device system includes a feeding unit 1 and a filling unit 2.

[0048] The feeding unit includes a hopper 11 and a barrel 12 arranged in sequence along the vertical direction, wherein the bottom of the hopper 11 is connected to the top of the barrel 12, a feed port 13 is provided at the top of the hopper 11, a level meter 14 and a stirring mechanism 15 are provided inside the hopper, and a feeding screw shaft 16 is provided from top to bottom through the hopper 11 and the barrel 12. The feeding screw shaft 16 and the stirring mechanism 15 are respectively driven by a gear motor and controlled by a servo motor, and the stirring mechanism 15 and the feeding screw shaft 16 rotate in opposite directions.

[0049] The bottom of the barrel is provided with a discharge port 17, the diameter of the discharge port 17 is 55mm; the discharge port 17 is provided with a perforated plate 18, such as Figure 2 As shown, the orifice plate 18 has an array of through holes radiating outward from the center, and the number of through holes is 12. Figure 3 As shown, the distance between the end of the feeding screw shaft 16 and the discharge port 17 is 60 mm. A flap mechanism 19 is also provided at the discharge port, comprising a flap 191, a rotating cylinder 192 and a lifting cylinder 193.

[0050] The sagger loading unit 2 includes a sagger tray 21 , a motorized roller 22 and a servo electric cylinder 23 . A weighing sensor 24 is provided at the bottom of the sagger tray.

[0051] During use, the powder material enters the hopper 11 through the feed port 13. The high and low material levels in the hopper 11 are controlled by the level meter 14. When the material level is low, the upstream feeds the material, and when the material level is high, the upstream feed stops. After the electric roller 22 transports the sagger tray 21 to the corresponding position of the discharge port 17, the servo electric cylinder 23 lifts the sagger tray 21 to the feeding height, the weighing sensor 24 is reset, the flap mechanism 19 set at the discharge port 17 opens, the feeding screw shaft 16 and the stirring mechanism 15 rotate in the opposite direction, and the material falling into the discharge port 17 forms a rathole under the action of the orifice plate 18. The material around the rathole is stable and does not collapse, and the material is filled into the sagger through the rathole. From the beginning of filling to the end of filling (the weight reaches the set value), the servo electric cylinder 23 controls the sagger tray 21 to descend at a set speed. After filling is completed, the flap mechanism 19 of the discharge port closes. After the sagger tray 21 descends to the lowest position, the electric roller 22 transports the sagger containing the material to the next station.

[0052] The applicant declares that the above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention fall within the scope of protection and disclosure of the present invention.

Claims

1. A feeding device system, characterized in that: The feeding device system includes a feeding unit; the feeding unit includes a hopper and a barrel arranged in sequence along the vertical direction; The bottom of the hopper is connected to the top of the barrel; the top of the hopper is provided with a feed port, and the bottom of the barrel is provided with a discharge port; The feeding unit further includes a feeding screw shaft; the feeding screw shaft penetrates the hopper and the barrel from top to bottom; the end of the feeding screw shaft is higher than the discharge port; the discharge port is provided with a perforated plate; The feeding screw shaft is controlled by a servo motor and the speed is continuously adjustable.

2. The feeding device system according to claim 1, characterized in that The orifice plate has a central hole and an array of through holes radiating outward from the central hole, wherein the diameter of the central hole is greater than 10 mm and smaller than the diameter of the discharge port; Preferably, the diameter of the discharge port is greater than 50 mm.

3. The feeding device system according to claim 1, characterized in that The distance between the bottom end of the feeding screw shaft and the discharge port is more than 20 mm.

4. The feeding device system according to claim 1, characterized in that A material level meter is provided inside the hopper, and the material level meter is used to control the material level in the hopper.

5. The feeding device system according to claim 1, characterized in that A stirring mechanism is also provided inside the hopper, and the stirring mechanism is used to break the material; Preferably, the stirring mechanism and the feeding screw shaft adopt a coaxial structure design, and the stirring mechanism adopts a bevel gear transmission design; Preferably, the feeding screw shaft and the stirring mechanism rotate in opposite directions.

6. The feeding device system according to claim 1, characterized in that The feeding unit further comprises a flap mechanism arranged at the discharge port, the flap mechanism comprises a flap, a rotating cylinder and a lifting cylinder, and the flap mechanism is used to control the opening and closing of the discharge port.

7. The feeding device system according to claim 1, characterized in that The feeding device system further comprises a bowl loading unit, and the bowl loading unit comprises a sagger tray.

8. The feeding device system according to claim 7, characterized in that A weighing sensor is provided at the bottom of the sagger tray.

9. The feeding device system according to claim 7, characterized in that The bowl loading unit further comprises a motorized roller, which is used for conveying the bowls.

10. The feeding device system according to claim 7, characterized in that The sagger loading unit further comprises a servo electric cylinder, which is used to control the lifting of the sagger, and the lifting speed and height of the sagger are continuously adjustable; Preferably, during the sagger filling process, the servo electric cylinder controls the sagger to descend, and adjusts the distance between the discharge port and the highest horizontal surface of the material in the sagger.

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