Powder feeding automation device

Abstract

The application discloses a kind of powder feeding automation device, it is related to powder feeding technical field, to solve the technical problem that existing powder feeding automation device is prone to damp lump, including double-barrel body mixing bin;Double-barrel body mixing bin input end is provided with distribution mechanism;Distribution mechanism input end is provided with pneumatic auxiliary conveying mechanism;Pneumatic auxiliary conveying mechanism input end is provided with integrated crushing conveying mechanism;Double-barrel body mixing bin top is provided with discharging storage bin;Integrated crushing conveying mechanism includes step motor;Step motor is arranged on the outside of discharging storage bin.The application is based on integrated crushing conveying mechanism setting in conveying at the same time extrusion work is carried out, to damp lump of powder in conveying process is broken, by the mode effective crushing hard lump therein, while avoiding excessive comminution or rigid impact to equipment, to solve the problem, such as flow instability and equipment jam, etc.

Description

Technical Field

[0001] This invention relates to the field of powder dosing technology, and more specifically, to an automated powder dosing device. Background Technology

[0002] In the field of powder material addition, especially in industries such as chemicals, food, and pharmaceuticals, precise addition and uniform mixing of powder materials are crucial for ensuring product quality and production efficiency. However, existing technologies still have the following prominent problems in practical applications:

[0003] Powder agglomeration problem: Powder materials are prone to agglomeration due to moisture during storage and transportation, forming hard lumps. Traditional crushing devices often use independent crushing mechanisms, resulting in complex equipment structures and a tendency to over-crush or under-crush. However, they also suffer from drawbacks such as high energy consumption, easy wear, and significant impact on powder particle size distribution.

[0004] Insufficient conveying stability: Conventional screw conveyors are prone to clogging when conveying agglomerated materials, leading to fluctuations in the feed rate. Especially when the powder moisture content is >3%, a material adhesion layer easily forms between the screw blades and the cylinder wall, further exacerbating the risk of clogging. While conventional pneumatic assistance can alleviate this problem, it also increases energy consumption by more than 30%.

[0005] Existing automated powder feeding devices are prone to moisture absorption and clumping, forming hard lumps. Traditional methods increase costs by adding a crushing step; ignoring this problem can easily lead to unstable powder feeding. Therefore, we propose an automated powder feeding device. Summary of the Invention

[0006] The purpose of this invention is to provide an automated powder dispensing device to solve the technical problem that existing automated powder dispensing devices are prone to moisture absorption and clumping.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automated powder feeding device, comprising a double-barrel mixing silo; a material distribution mechanism is provided at the input end of the double-barrel mixing silo; a pneumatically assisted conveying mechanism is provided at the input end of the material distribution mechanism; an integrated crushing and conveying mechanism is provided at the input end of the pneumatically assisted conveying mechanism; a discharge storage silo is provided at the top of the double-barrel mixing silo; the integrated crushing and conveying mechanism includes a stepper motor; the stepper motor is arranged outside the discharge storage silo; a dual-mode output mechanism is provided at the output end of the stepper motor; an axial adjustment shaft is provided at one output end of the dual-mode output mechanism; a spiral crushing and conveying mechanism is provided at the other output end of the dual-mode output mechanism; the spiral crushing and conveying mechanism is connected to the axial adjustment shaft via a bearing seat.

[0008] This invention is based on an integrated crushing and conveying mechanism that performs compression work while conveying, thereby crushing damp and lumpy powder during the conveying process. This method effectively breaks up hard lumps while avoiding over-crushing or rigid impact on the equipment, thus solving problems such as material interruption, unstable flow, and equipment blockage.

[0009] Preferably, the dual-mode output mechanism includes a multi-stage connecting bearing housing fixed to one side of the unloading storage bin; a primary drive gear is provided on the multi-stage connecting bearing housing relative to the output end of the stepper drive motor; a secondary drive shaft gear is provided on the primary drive gear relative to the multi-stage connecting bearing housing; a secondary bidirectional gear is provided on one side of the primary drive gear; and an auxiliary bushing is provided at the end of the secondary drive shaft gear.

[0010] Preferably, the dual-mode output mechanism further includes at least one auxiliary transmission gear arranged on the multi-stage connecting bearing housing; the auxiliary transmission gear meshes with the second-stage bidirectional gear; a third-stage bidirectional gear meshes with the auxiliary transmission gear below the second-stage bidirectional gear; and a conveying gear is arranged on the multi-stage connecting bearing housing relative to the output end of the third-stage bidirectional gear.

[0011] Preferably, the axial adjustment shaft is fixed to the high end of the bearing seat, and at least one adjustment protrusion is provided on the surface of the axial adjustment shaft; a drive groove is provided inside the auxiliary bushing; the secondary drive shaft tooth rotates to drive the auxiliary bushing, causing the adjustment protrusion on the surface of the axial adjustment shaft to slide along the drive groove to form a telescopic movement.

[0012] Preferably, the drive groove is composed of at least one spiral axial torsion adjustment groove and a linear reset groove, wherein the axial torsion adjustment groove and the linear reset groove are connected end to end.

[0013] Preferably, the spiral crushing and conveying mechanism includes a dynamic drive shaft passing through the conveying gear; the dynamic drive shaft is keyed to the conveying gear; the end of the dynamic drive shaft is rotatably connected to the bearing seat via a bearing; a fixed drive shaft passes through the inside of the dynamic drive shaft; the fixed drive shaft is rotatably connected to the pneumatic auxiliary conveying mechanism via a bearing; and the fixed drive shaft and the dynamic drive shaft are keyed together.

[0014] Preferably, the spiral crushing and conveying mechanism further includes a conveying auger arranged at the end of the dynamic drive shaft; the other end of the conveying auger is fixedly connected to the end of the fixed drive shaft; wherein the conveying auger has a spiral structure, and the dynamic drive shaft and the fixed drive shaft form an elastic structure through the conveying auger, and the radial diameter of the conveying auger increases under axial compression.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention is based on an integrated crushing and conveying mechanism that performs extrusion work while conveying, thereby crushing the damp and lumpy powder during the conveying process. This method effectively breaks up the hard lumps while avoiding over-crushing or rigid impact on the equipment, thus solving problems such as material interruption, unstable flow and equipment blockage.

[0017] 2. This invention forms a synchronously driven spiral crushing and conveying mechanism for rotational conveying and axial adjustment extrusion by meshing a primary drive gear, a secondary drive shaft gear, a secondary bidirectional gear, an auxiliary transmission gear, a tertiary bidirectional gear, and a conveying gear. This method effectively achieves the coupling of the same-position power input for the rotational conveying and axial adjustment extrusion of the spiral crushing and conveying mechanism.

[0018] 3. The present invention drives the auxiliary bushing by rotating the secondary drive shaft gear, causing the adjustment protrusion on the surface of the axial adjustment shaft to slide along the drive groove to form a telescopic movement. In this way, the bearing seat at the end of the axial adjustment shaft and the spiral crushing and conveying mechanism are simultaneously driven to perform axial compression adjustment.

[0019] 4. In this invention, a cam structure is formed based on a spiral axial torsion adjustment groove to form the axial sliding adjustment of the axial adjustment shaft.

[0020] 5. The present invention connects the dynamic drive shaft to the conveying gear and the fixed drive shaft respectively by key, so that the conveying gear outputs rotational power while the dynamic drive shaft and the fixed drive shaft rotate synchronously, thus avoiding asynchronous movement.

[0021] 6. This invention is based on the principle that while the conveying gear outputs rotational power, it also maintains the synchronous rotation of the dynamic drive shaft and the fixed drive shaft, thereby ensuring that the arranged conveying auger maintains a relatively stable rotational propulsion operation. At the same time, the conveying auger is a spiral structure with a linear reset groove, which causes the conveying auger to reset and stretch after compression, and at the same time has a certain elastic impact force to reset and crush the falling powder. The auger compression crushes the agglomerated powder, and the elastic reset and stretching of the conveying auger crushes the agglomerated powder. The agglomerated powder is simultaneously pulverized through two methods to achieve good conveying of the agglomerated powder. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the present invention;

[0024] Figure 3This is a schematic diagram of the structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the present invention.

[0028] Explanation of the labels in the diagram:

[0029] 1. Double-barrel mixing hopper; 2. Material distribution mechanism; 3. Pneumatic-assisted conveying mechanism; 4. Integrated crushing and conveying mechanism; 5. Material storage hopper; 6. Stepper drive motor; 7. Dual-mode output mechanism; 8. Axial adjustment shaft; 9. Spiral crushing and conveying mechanism; 10. Bearing housing;

[0030] 701. Primary drive gear; 702. Secondary drive shaft gear; 7021. Auxiliary bushing; 7022. Drive groove; 7023. Axial torsion adjustment groove; 7024. Linear reset groove; 703. Secondary bidirectional gear; 704. Auxiliary transmission gear; 705. Tertiary bidirectional gear; 706. Conveyor gear;

[0031] 801. Adjust the protrusion;

[0032] 901. Dynamic drive shaft; 902. Fixed drive shaft; 905. Conveying auger. Detailed Implementation

[0033] like Figures 1 to 6 As shown, this invention relates to an automated powder feeding device, comprising a double-barrel mixing silo 1; a material distribution mechanism 2 is provided at the input end of the double-barrel mixing silo 1; a pneumatically assisted conveying mechanism 3 is provided at the input end of the material distribution mechanism 2; an integrated crushing and conveying mechanism 4 is provided at the input end of the pneumatically assisted conveying mechanism 3; a discharge storage silo 5 is provided at the top of the double-barrel mixing silo 1; the integrated crushing and conveying mechanism 4 includes a stepper motor 6; the stepper motor 6 is arranged outside the discharge storage silo 5; a dual-mode output mechanism 7 is provided at the output end of the stepper motor 6; one output end of the dual-mode output mechanism 7 is provided with an axial adjustment shaft 8; the other output end of the dual-mode output mechanism 7 is provided with a spiral crushing and conveying mechanism 9; the spiral crushing and conveying mechanism 9 is connected to the axial adjustment shaft 8 via a bearing seat 10. This invention utilizes the integrated crushing and conveying mechanism 4 to perform compression work simultaneously with conveying, thereby crushing damp and agglomerated powder during the conveying process. This method effectively breaks up hard lumps while avoiding over-crushing or rigid impact on the equipment, thus solving problems such as material feeding interruption, unstable flow, and equipment blockage.

[0034] In an embodiment of the present invention, the dual-mode output mechanism 7 includes a multi-stage connecting bearing housing fixed to one side of the unloading storage bin 5; a first-stage drive gear 701 is provided on the multi-stage connecting bearing housing relative to the output end of the stepper drive motor 6; a second-stage drive shaft gear 702 is provided on the first-stage drive gear 701 relative to the multi-stage connecting bearing housing; a second-stage bidirectional gear 703 is provided on one side of the first-stage drive gear 701; and an auxiliary bushing 7021 is provided at the end of the second-stage drive shaft gear 702.

[0035] In an embodiment of the present invention, the dual-mode output mechanism 7 further includes at least one auxiliary transmission gear 704 arranged on a multi-stage connecting bearing seat; the auxiliary transmission gear 704 meshes with a secondary bidirectional gear 703; a tertiary bidirectional gear 705 meshes with the auxiliary transmission gear 704 below the secondary bidirectional gear 703; and a conveying gear 706 is arranged on the multi-stage connecting bearing seat opposite the output end of the tertiary bidirectional gear 705. The present invention, through the meshing arrangement of the primary drive gear 701, the secondary drive shaft gear 702, the secondary bidirectional gear 703, the auxiliary transmission gear 704, the tertiary bidirectional gear 705, and the conveying gear 706, forms a synchronously driven spiral crushing and conveying mechanism 9 for both rotary conveying and axially adjusted extrusion operations. This effectively achieves the coupling of the same-position power input for the rotary conveying and axially adjusted extrusion operations of the spiral crushing and conveying mechanism 9.

[0036] In an embodiment of the present invention, the axial adjustment shaft 8 is fixed to the high end of the bearing seat 10, and at least one adjustment protrusion 801 is provided on the surface of the axial adjustment shaft 8; a drive groove 7022 is provided inside the auxiliary bushing 7021; the secondary drive shaft gear 702 rotates to drive the auxiliary bushing 7021, causing the adjustment protrusion 801 on the surface of the axial adjustment shaft 8 to slide along the drive groove 7022 to form a telescopic movement. The present invention uses the rotation of the secondary drive shaft gear 702 to drive the auxiliary bushing 7021, causing the adjustment protrusion 801 on the surface of the axial adjustment shaft 8 to slide along the drive groove 7022 to form a telescopic movement. This method simultaneously drives the bearing seat 10 at the end of the axial adjustment shaft 8 and the spiral crushing and conveying mechanism 9 to perform axial compression adjustment operations.

[0037] In an embodiment of the present invention, the drive groove 7022 is composed of at least one spiral axial torsion adjustment groove 7023 and a linear reset groove 7024, wherein the axial torsion adjustment groove 7023 and the linear reset groove 7024 are connected end to end. In the present invention, the spiral axial torsion adjustment groove 7023 forms the cam structure required for the axial sliding adjustment of the axial adjustment shaft 8.

[0038] In an embodiment of the present invention, the spiral crushing and conveying mechanism 9 includes a dynamic drive shaft 901 passing through a conveying gear 706; the dynamic drive shaft 901 is keyed to the conveying gear 706; the end of the dynamic drive shaft 901 is rotatably connected to the bearing housing 10 via a bearing; a fixed drive shaft 902 passes through the dynamic drive shaft 901; the fixed drive shaft 902 is rotatably connected to the pneumatic auxiliary conveying mechanism 3 via a bearing; and the fixed drive shaft 902 is keyed to the dynamic drive shaft 901. The present invention, by keying the dynamic drive shaft 901 to both the conveying gear 706 and the fixed drive shaft 902, ensures that the conveying gear 706 outputs rotational power while simultaneously maintaining synchronous rotation of the dynamic drive shaft 901 and the fixed drive shaft 902, thus avoiding asynchronous movement.

[0039] In an embodiment of the present invention, the spiral crushing and conveying mechanism 9 further includes a conveying auger 905 arranged at the end of the dynamic drive shaft 901; the other end of the conveying auger 905 is fixedly connected to the end of the fixed drive shaft 902; wherein, the conveying auger 905 has a spiral structure, and the dynamic drive shaft 901 and the fixed drive shaft 902 form an elastic structure through the conveying auger 905, and the radial diameter of the conveying auger 905 increases under axial compression. This invention is based on the principle that while the conveying gear 706 outputs rotational power, it also maintains the synchronous rotation of the dynamic drive shaft 901 and the fixed drive shaft 902, thereby ensuring that the arranged conveying auger 905 maintains a relatively stable rotational propulsion operation. Simultaneously, the conveying auger 905, being a spiral structure with a linear reset groove 7024, causes the compressed conveying auger 905 to reset and stretch, while also possessing a certain elastic impact force to perform reset-type impact crushing on the falling powder. The invention achieves simultaneous pulverization of agglomerated powder through both compression and elastic reset stretching of the conveying auger 905, thus effectively conveying the agglomerated powder.

[0040] Working principle: This embodiment provides an automated powder dispensing device. Usage steps:

[0041] S100, Power Input and Distribution: Stepper motor 6 synchronously drives secondary drive shaft gear 702 and conveyor gear 706 through dual-mode output mechanism 7;

[0042] S200, Dynamic Crushing Stage:

[0043] S201, Axial compression crushing: The axial torsion adjustment groove 7023 in the auxiliary bushing 7021 drives the adjustment protrusion 801 to move axially.

[0044] S202, Elastic Reset Crushing: When the adjusting protrusion 801 enters the linear reset groove 7024, the conveying auger 905 generates an impact by elastically and quickly resetting, which creates a vibration crushing effect on the lumpy material.

[0045] S300, Pneumatic Assisted Conveying: The crushed powder is accelerated by the pneumatic assisted conveying mechanism 3;

[0046] S400, Mixing process: Mixing is carried out by a stirring device installed in the double-barrel mixing chamber 1.

[0047] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. An automated powder dispensing device, characterized in that, It includes a double-barrel mixing bin (1); the input end of the double-barrel mixing bin (1) is provided with a material distribution mechanism (2); the input end of the material distribution mechanism (2) is provided with a pneumatic auxiliary conveying mechanism (3); the input end of the pneumatic auxiliary conveying mechanism (3) is provided with an integrated crushing and conveying mechanism (4); the top of the double-barrel mixing bin (1) is provided with a discharge storage bin (5). The integrated crushing and conveying mechanism (4) includes a stepper motor (6); the stepper motor (6) is arranged outside the material storage bin (5); the output end of the stepper motor (6) is provided with a dual-mode output mechanism (7); one of the output ends of the dual-mode output mechanism (7) is provided with an axial adjustment shaft (8). The other output end of the dual-mode output mechanism (7) is provided with a spiral crushing and conveying mechanism (9); the spiral crushing and conveying mechanism (9) is connected to the axial adjustment shaft (8) through the bearing seat (10); The spiral crushing and conveying mechanism (9) includes a dynamic drive shaft (901) passing through a conveying gear (706); the dynamic drive shaft (901) is keyed to the conveying gear (706); The end of the dynamic drive shaft (901) is rotatably connected to the bearing housing (10) via a bearing; The dynamic drive shaft (901) is internally fitted with a fixed drive shaft (902); the fixed drive shaft (902) and the pneumatic auxiliary conveying mechanism (3) are rotatably connected by bearings; The fixed drive shaft (902) and the dynamic drive shaft (901) are keyed together; The spiral crushing and conveying mechanism (9) further includes a conveying auger (905) arranged at the end of the dynamic drive shaft (901); the other end of the conveying auger (905) is fixedly connected to the end of the fixed drive shaft (902); Wherein, the conveying auger (905) is a spiral structure, and the dynamic drive shaft (901) forms an elastic structure with the fixed drive shaft (902) through the conveying auger (905), and the radial diameter of the conveying auger (905) increases when the conveying auger (905) is under axial compression. The dual-mode output mechanism (7) includes a multi-stage connecting bearing seat fixed to one side of the unloading storage bin (5); the multi-stage connecting bearing seat is provided with a first-stage drive gear (701) relative to the output end of the stepper drive motor (6). The primary drive gear (701) is provided with a secondary drive shaft tooth (702) on the multi-stage connecting bearing housing; a secondary bidirectional gear (703) is provided on one side of the primary drive gear (701); and an auxiliary bushing (7021) is provided at the end of the secondary drive shaft tooth (702). The axial adjustment shaft (8) is fixed to the high end of the bearing seat (10), and the surface of the axial adjustment shaft (8) is provided with at least one adjustment protrusion (801); the auxiliary bushing (7021) is provided with a drive groove (7022). The drive groove (7022) is composed of at least one spiral axial torsion adjustment groove (7023) and a linear reset groove (7024), wherein the axial torsion adjustment groove (7023) and the linear reset groove (7024) are connected end to end; The secondary drive shaft tooth (702) rotates and drives the auxiliary bushing (7021), causing the adjustment protrusion (801) on the surface of the axial adjustment shaft (8) to slide along the drive groove (7022) to form a telescopic motion.

2. The automated powder feeding device according to claim 1, characterized in that, The dual-mode output mechanism (7) further includes at least one auxiliary transmission gear (704) arranged on the multi-stage connecting bearing seat; the auxiliary transmission gear (704) meshes with the secondary bidirectional gear (703); Below the secondary bidirectional gear (703) is a tertiary bidirectional gear (705) that meshes with the auxiliary transmission gear (704). A conveying gear (706) is provided on the multi-stage connecting bearing housing relative to the output end of the three-stage bidirectional gear (705).

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