阅读说明：本技术 一种粉料高精度称量装置及其方法 (High-precision powder weighing device and method thereof ) 是由 黄俭波 于 2020-06-16 设计创作，主要内容包括：本发明公开了一种粉料高精度称量装置及其方法,其粉料高精度称量装置包括粉料计量斗以及位于粉料计量斗一侧的倾斜设置的螺旋输送机,所述螺旋输送机的底部一侧连通并固定有出料管,出料管位于粉料计量斗的上方,所述粉料计量斗的上方设有矩形座,且矩形座的顶部开设有圆形槽,圆形槽的底部内壁上开设有下料方孔,出料管的底端贯穿圆形槽并延伸至下料方孔内。本发明设计合理,便于根据实际需要对出料管底端的出料速度进行遥控调节,无需人员登高处理,且使得能够在保证前续快速下料的同时,也能够有效对末尾下料部分精确稳定的把控,降低因下料过快造成下料过多的现象,最终达到下料量在要求的范围之内,有利于使用。(The invention discloses a high-precision powder weighing device and a method thereof, wherein the high-precision powder weighing device comprises a powder metering hopper and an obliquely arranged spiral conveyor positioned on one side of the powder metering hopper, a discharge pipe is communicated and fixed on one side of the bottom of the spiral conveyor and positioned above the powder metering hopper, a rectangular seat is arranged above the powder metering hopper, a circular groove is formed in the top of the rectangular seat, a discharging square hole is formed in the inner wall of the bottom of the circular groove, and the bottom end of the discharge pipe penetrates through the circular groove and extends into the discharging square hole. The automatic control device is reasonable in design, the discharging speed at the bottom end of the discharging pipe can be conveniently adjusted in a remote control mode according to actual needs, personnel does not need to ascend, the last discharging part can be effectively controlled accurately and stably while the previous quick discharging is guaranteed, the phenomenon of excessive discharging caused by the fact that the discharging is too fast is reduced, the discharging amount is finally within the required range, and the automatic control device is beneficial to use.)

1. A high-precision powder weighing device comprises a powder measuring hopper (1) and a spiral conveyor (2) which is positioned on one side of the powder measuring hopper (1) and is obliquely arranged, wherein a discharge pipe (3) is communicated and fixed on one side of the bottom of the spiral conveyor (2), the discharge pipe (3) is positioned above the powder measuring hopper (1), the high-precision powder weighing device is characterized in that a rectangular seat (4) is arranged above the powder measuring hopper (1), a circular groove (5) is formed in the top of the rectangular seat (4), a square discharging hole (6) is formed in the inner wall of the bottom of the circular groove (5), the bottom end of the discharge pipe (3) penetrates through the circular groove (5) and extends into the square discharging hole (6), the inner walls of four sides of the square discharging hole (6) are respectively welded and fixed with the bottoms of four sides of the discharge pipe (3), and a large gear (7) positioned in the circular groove (5) is rotatably sleeved on the, the inner walls of two sides of the blanking square hole (6) are respectively provided with a first rectangular hole (8), the first rectangular hole (8) is internally provided with an adjusting baffle (10) in a sliding way, one side of the two adjusting baffles (10) close to each other extends into the blanking square hole (6), the top of each adjusting baffle (10) is movably contacted with the bottom of the discharge pipe (3), a screw rod (9) is installed in the first rectangular hole (8) in a rotating way, the adjusting baffles (10) are sleeved on the corresponding screw rods (9) in a threaded way, the inner wall of the bottom of each first rectangular hole (8) is provided with a limiting hole (15), a positioning rod (16) is fixedly connected between the inner walls of two sides of each limiting hole (15), a sliding block (17) is sleeved on each positioning rod (16) in a sliding way, the top of each sliding block (17) is fixedly connected with the bottom of the corresponding adjusting baffle (10), the screw rod (9) is fixedly, the two first bevel gears (11) are symmetrically arranged, the top of the first bevel gear (11) is engaged with a second bevel gear (12), the top of the second bevel gear (12) is fixedly connected with a rotating shaft (13), the top end of the rotating shaft (13) extends into the circular groove (5) and is fixedly connected with a small gear (14), the large gear (7) is positioned between the two small gears (14), the two small gears (14) are both engaged with the large gear (7), one side of the top of the rectangular seat (4) is fixedly connected with a U-shaped plate (18), and fixedly connected with driving motor (19) on the left side inner wall of U-shaped board (18), the output shaft of driving motor (19) and the top fixed connection of one pinion (14) in two pinions (14), fixedly connected with holds electric box (20) on the top inner wall of U-shaped board (18), fixedly connected with wireless remote control switch (21) and singlechip (22) on the right side inner wall of U-shaped board (18).

2. The high-precision powder weighing device according to claim 1, wherein the wireless remote control switch (21) is electrically connected with the single chip microcomputer (22), the single chip microcomputer (22) is electrically connected with the driving motor (19), the driving motor (19) and the single chip microcomputer (22) are both electrically connected with the power storage box (20) through wires, an external remote controller is arranged on the wireless remote control switch (21) in a matching manner, and the wireless remote control switch (21) is controlled by the external remote controller.

3. The high-precision powder weighing device according to claim 1, wherein a first circular hole is formed in the top of the large gear (7), a large bearing (23) is fixedly sleeved in the first circular hole, and the inner side of an inner ring of the large bearing (23) is fixedly connected with the outer side of the discharge pipe (3).

4. The high-precision powder weighing device according to claim 1, wherein the same first bearing (25) is fixedly connected between the top inner wall and the bottom inner wall of the first rectangular hole (8), and the inner side of the inner ring of the first bearing (25) is welded and fixed with the outer side of the corresponding screw (9).

5. The high-precision powder weighing device according to claim 1, wherein the two adjusting baffles (10) are provided with thread grooves on the sides away from each other, and the thread grooves are in threaded connection with the corresponding screw rods (9).

6. The high-precision powder weighing device according to claim 1, wherein a second round hole is formed in the inner wall of the top of the first rectangular hole (8), a second bearing (24) is fixedly sleeved in the second round hole, and the inner side of the inner ring of the second bearing (24) is welded and fixed with the outer side of the corresponding rotating shaft (13).

7. The high-precision powder weighing device according to claim 1, wherein one side of the slide block (17) is provided with a second rectangular hole, and the inner wall of the second rectangular hole is connected with the outer side of the corresponding positioning rod (16) in a sliding manner.

8. A high precision weighing apparatus for powders according to claim 1 characterized in that the distance between the front and rear sides of the U-shaped plate (18) is the same as the distance between the front and rear sides of the rectangular seat (4).

9. The high-precision powder weighing device according to claim 1, characterized in that a third round hole is formed on one side of the first bevel gear (11), and the inner wall of the third round hole is welded and fixed with the outer side of the corresponding screw (9).

10. The method of the powder high-precision weighing device is characterized by comprising the following steps of:

s1: firstly, conveying powder into a powder metering hopper (1) by using a screw conveyor (2), and metering the entering powder by using the powder metering hopper (1);

s2: when the powder measuring hopper (1) in the S1 measures 85% -90% of the required powder amount, a person operates the wireless remote control switch (21) through an external remote controller to control the single chip microcomputer (22) to start the driving motor (19) in the forward direction, the driving motor (19) drives one small gear (14) of the two small gears (14) to rotate, one small gear (14) drives the other small gear (14) to rotate through the large gear (7), and at the moment, the two small gears (14) synchronously rotate;

s3: two pinions (14) in the S2 drive two second bevel gears (12) to rotate through two rotating shafts (13), and the second bevel gears (12) drive the screw rods (9) to rotate through first bevel gears (11) meshed with the second bevel gears;

s4: two screws (9) in the S3 can drive two adjusting baffles (10) to move towards the direction of mutual approaching by rotating;

s5: the adjusting baffle (10) in the S4 drives the corresponding slide block (17) to slide on the positioning rod (16);

s6: when the two adjusting baffle plates (10) move towards the direction close to each other in S4, the distance between the two adjusting baffle plates (10) is reduced, and the two adjusting baffle plates (10) shield the bottom end of the discharge pipe (3) from two sides to the middle part synchronously, so that the discharge space at the bottom end of the discharge pipe (3) is reduced, the final discharge speed can be reduced, and the controllability is improved.

Technical Field

The invention relates to the technical field of powder high-precision weighing equipment, in particular to a powder high-precision weighing device and a powder high-precision weighing method.

Background

When various powder processing equipment is used for processing powder, a powder metering hopper is often required to be installed at a feed inlet of the equipment for metering the powder, the powder metering hopper is a metering device specially used for accurately metering an inlet of the powder equipment on the market and is often matched with a screw conveyor for use, wherein the screw conveyor is a feeding device for upwards conveying the material, and the lower end of a discharge pipe opening of the screw conveyor is aligned to an inlet at the top of the powder metering hopper; for example, in a commercially available vertical soybean peptide powder automatic metering packaging machine with the model number of CB-4230, a powder material metering hopper is arranged at a feeding port at the top of the soybean peptide powder packaging machine, and a screw conveyor is used for conveying powder materials, so that a group of high-precision quick feeding metering equipment is formed by matching the feeding hopper with the screw conveyor.

The existing high-precision powder weighing device has the defect that the discharge pipe opening of a screw conveyor is not convenient to be remotely adjusted, the discharge pipe opening is large for facilitating quick discharging, the speed of powder entering a powder measuring hopper is high, the powder is difficult to control, if the powder is fast, the powder cannot be timely stopped, the powder discharging is excessive, the position of the powder measuring hopper is high, a worker is required to ascend to move out redundant powder, time and labor are wasted, the powder shortage is large when the powder is stopped in advance, the powder cannot be controlled within a required error range, if a small discharge pipe opening is directly adopted, the discharging time can be greatly prolonged, the use requirement cannot be met, and aiming at the phenomenon, the high-precision powder weighing device and the method thereof are provided.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a high-precision powder weighing device and a method thereof.

The invention provides a high-precision powder weighing device, which comprises a powder metering hopper and an obliquely arranged spiral conveyor positioned on one side of the powder metering hopper, wherein a discharge pipe is communicated and fixed on one side of the bottom of the spiral conveyor and positioned above the powder metering hopper, a rectangular seat is arranged above the powder metering hopper, a circular groove is formed in the top of the rectangular seat, a discharging square hole is formed in the inner wall of the bottom of the circular groove, the bottom end of the discharge pipe penetrates through the circular groove and extends into the discharging square hole, the inner walls of four sides of the discharging square hole are respectively welded and fixed with the bottoms of four sides of the discharge pipe, a large gear positioned in the circular groove is rotatably sleeved on the discharge pipe, first rectangular holes are formed in the inner walls of two sides of the discharging square hole, an adjusting baffle is slidably sleeved in the first rectangular holes, one side, close to each other, of the two adjusting baffles extends into the discharging square, the top of the adjusting baffle is in movable contact with the bottom end of the discharge pipe, a screw rod is rotatably mounted in the first rectangular hole, the adjusting baffle is in threaded sleeve on the corresponding screw rod, a limiting hole is formed in the inner wall of the bottom of the first rectangular hole, the same positioning rod is fixedly connected between the inner walls of two sides of the limiting hole, a sliding block is sleeved on the positioning rod in a sliding manner, the top of the sliding block is fixedly connected with the bottom of the corresponding adjusting baffle, a first bevel gear is fixedly sleeved on the screw rod and symmetrically arranged, a second bevel gear is meshed with the top of the first bevel gear, a rotating shaft is fixedly connected with the top of the second bevel gear, the top end of the rotating shaft extends into the circular groove and is fixedly connected with a small gear, the large gear is positioned between the two small gears, both small gears are meshed with the large gear, and one, and fixedly connected with driving motor on the left side inner wall of U-shaped plate, driving motor's output shaft and the top fixed connection of one of two pinions, fixedly connected with electricity storage box on the top inner wall of U-shaped plate, fixedly connected with wireless remote control switch and singlechip on the right side inner wall of U-shaped plate.

Preferably, the wireless remote control switch is electrically connected with the single chip microcomputer, the single chip microcomputer is electrically connected with the driving motor, the driving motor and the single chip microcomputer are both electrically connected with the power storage box through wires, the wireless remote control switch is provided with an external remote controller in a matching mode, and the wireless remote control switch is controlled by the external remote controller.

Preferably, a first round hole is formed in the top of the large gear, a large bearing is fixedly sleeved in the first round hole, and the inner side of an inner ring of the large bearing is fixedly connected with the outer side of the discharge pipe.

Preferably, the same first bearing is fixedly connected between the top inner wall and the bottom inner wall of the first rectangular hole, and the inner side of an inner ring of the first bearing is welded and fixed with the outer side of the corresponding screw rod.

Preferably, thread grooves are formed in one side, away from each other, of each adjusting baffle plate, and the thread grooves are in threaded connection with the corresponding screws.

Preferably, a second round hole is formed in the inner wall of the top of the first rectangular hole, a second bearing is fixedly sleeved in the second round hole, and the inner side of the inner ring of the second bearing is welded and fixed with the outer side of the corresponding rotating shaft.

Preferably, a second rectangular hole is formed in one side of the sliding block, and the inner wall of the second rectangular hole is in sliding connection with the outer side of the corresponding positioning rod.

Preferably, the distance between the front and rear sides of the U-shaped plate is the same as the distance between the front and rear sides of the rectangular seat.

Preferably, one side of the first bevel gear is provided with a third round hole, and the inner wall of the third round hole is welded and fixed with the outer side of the corresponding screw.

The invention also provides a method of the powder high-precision weighing device, which comprises the following steps:

s1: firstly, conveying powder into a powder metering hopper by using a screw conveyor, and metering the powder entering the powder metering hopper;

s2: when the powder measuring hopper in the S1 measures 85% -90% of the required powder amount, a person controls a wireless remote control switch through an external remote controller to control a single chip microcomputer to start a driving motor in the forward direction, the driving motor drives one small gear of two small gears to rotate, one small gear drives the other small gear to rotate through a large gear, and at the moment, the two small gears synchronously rotate;

s3: two pinions in the S2 drive two second bevel gears to rotate through two rotating shafts, and the second bevel gears drive the screw rods to rotate through the first bevel gears meshed with the second bevel gears;

s4: the rotation of the two screws in the S3 can drive the two adjusting baffles to move towards the direction of mutual approaching;

s5: the adjusting baffle in S4 drives the corresponding slide block to slide on the positioning rod;

s6: s4 two adjusting baffle when moving to the direction that is close to each other, the distance between two adjusting baffle becomes little this moment, two adjusting baffle shelter from a part to the centre in step from both sides to the bottom of discharging pipe this moment, make the bottom ejection of compact space of discharging pipe diminish, can reduce final ejection of compact speed, improve the controllability, and through the distance between two adjusting baffle of adjustment, can adjust the final unloading speed in discharging pipe bottom according to actual need, can be when guaranteeing the preceding quick unloading, carry out effective accurate control to the last part of unloading, it is within the scope of requirement finally to reach the unloading volume, effectively avoid causing the too much phenomenon of unloading because of the unloading is too fast.

Compared with the prior art, the invention has the beneficial effects that:

the automatic control device is reasonable in design, the discharging speed at the bottom end of the discharging pipe can be conveniently adjusted in a remote control mode according to actual needs, personnel does not need to ascend, the last discharging part can be effectively controlled accurately and stably while the previous quick discharging is guaranteed, the phenomenon of excessive discharging caused by the fact that the discharging is too fast is reduced, the discharging amount is finally within the required range, and the automatic control device is beneficial to use.

Drawings

FIG. 1 is a schematic structural diagram of a high-precision powder weighing device according to the present invention;

FIG. 2 is a schematic sectional view of a portion A of a high-precision powder weighing device according to the present invention;

FIG. 3 is an enlarged view of the portion B in FIG. 2;

FIG. 4 is a schematic top view of a rectangular seat and a discharge tube connecting piece of the high-precision powder weighing device according to the present invention;

fig. 5 is a perspective view of the slider and the jumper connection member in fig. 3.

In the figure: the device comprises a powder measuring hopper 1, a screw conveyor 2, a discharge pipe 3, a rectangular seat 4, a circular groove 5, a square discharge hole 6, a bull gear 7, a first rectangular hole 8, a screw rod 9, an adjusting baffle 10, a first bevel gear 11, a second bevel gear 12, a rotating shaft 13, a pinion 14, a limiting hole 15, a positioning rod 16, a slider 17, a U-shaped plate 18, a driving motor 19, an electricity storage box 20, a wireless remote control switch 21, a single chip microcomputer 22, a large bearing 23, a second bearing 24 and a first bearing 25.

Detailed Description

The present invention will be further illustrated with reference to the following specific examples.