阅读说明：本技术 一种精密下料机出料螺杆均流装置 (Discharging screw flow equalizing device of precision blanking machine ) 是由 张险峰 王磊 王文韶 李瑞利 张庆 周骄阳 王晓东 王哲 王菲菲 曹峰 周敏 于 2021-09-24 设计创作，主要内容包括：本发明公开了一种精密下料机出料螺杆均流装置,包括出料螺杆,出料螺杆一端设置为阶梯轴,阶梯轴的阶梯面为定位轴肩,出料螺杆另一端沿圆周方向均匀间隔固定设置有若干均流翼片,各个均流翼片形状和大小均相同。本发明结构简单、工作稳定、结构强度高、下料精度高。(The invention discloses a discharging screw flow equalizing device of a precise blanking machine, which comprises a discharging screw, wherein one end of the discharging screw is provided with a stepped shaft, the stepped surface of the stepped shaft is a positioning shaft shoulder, the other end of the discharging screw is fixedly provided with a plurality of flow equalizing fins at uniform intervals along the circumferential direction, and the shape and the size of each flow equalizing fin are the same. The invention has simple structure, stable work, high structural strength and high blanking precision.)

1. The utility model provides a precision blanking machine ejection of compact screw rod flow straightener, includes ejection of compact screw rod, its characterized in that: discharging screw rod one end sets up to the step shaft, and the ladder face of step shaft is the location shaft shoulder, and the discharging screw rod other end is provided with a plurality of fins that flow equalize along the even interval of circumferencial direction, and each fin shape and size that flow equalize are all the same.

2. The precise blanking machine discharging screw flow equalizing device of claim 1, wherein: the discharging screw rod is of a hollow structure, a threaded hole is formed in the discharging screw rod along the axial direction of the discharging screw rod, a screw rod is connected in the threaded hole along the axial direction of the threaded hole in a threaded mode, the two ends of the screw rod extend out of the threaded hole respectively, and the flow equalizing fins are arranged at the end of the screw rod.

3. The precise blanking machine discharging screw flow equalizing device of claim 2, wherein: and the two end parts of the screw rod are respectively in threaded connection with locking nuts positioned on two sides of the discharging screw rod, and the locking nuts are in locking fit with the end surface of the discharging screw rod.

4. The discharging screw flow equalizing device of the precision blanking machine according to claim 1 or 2, characterized in that: the flow equalizing fins are arranged into a rectangular or triangular sheet structure.

5. The discharging screw flow equalizing device of the precision blanking machine according to claim 1 or 2, characterized in that: the fin that flow equalizes is divided into the same first fin of size, second fin and third fin, first fin, second fin and third fin are including the connection piece that is located the plectrum piece at both ends and is located the middle part, the plectrum piece at both ends sets up about the connection piece symmetry, first connecting groove has been seted up relatively respectively at the middle part of the connection piece one side of first fin and third fin, the second connecting groove with first connecting groove looks adaptation is seted up respectively to the connection piece middle part both sides of second fin, first fin and third fin correspond the card respectively through first connecting groove and establish in the second connecting groove of second fin both sides, first fin, second fin and third fin are crisscross to be set up and six equallies in the circumferencial direction, first fin, the piece is dialled evenly distributed on the circumferencial direction to each of second fin and third fin.

6. The precise blanking machine discharging screw flow equalizing device of claim 1, wherein: and a thrust bearing and a tapered roller bearing are arranged at the end part of the discharging screw rod positioned at the stepped shaft at intervals.

7. The precise blanking machine discharging screw flow equalizing device of claim 6, wherein: the end portion, located the stepped shaft, on the discharging screw rod is sleeved with a shaft sleeve, one end of the shaft sleeve is in key connection with the stepped shaft, and a thrust bearing is arranged on the outer wall of the shaft sleeve.

8. The precise blanking machine discharging screw flow equalizing device of claim 6, wherein: and a sealing cover is arranged on the outer side of the tapered roller bearing.

9. The precise blanking machine discharging screw flow equalizing device of claim 2, wherein: and an electrostatic release sheet is fixedly arranged at one end of the screw rod opposite to the flow equalizing fin.

10. The precise blanking machine discharging screw flow equalizing device of claim 1, wherein: the discharging screw rod is a nylon screw rod.

Technical Field

The invention belongs to the technical field of blanking machines, and particularly relates to a discharging screw flow equalizing device of a precision blanking machine.

Background

The powder often meets the phenomena of difficult blanking, blockage of a stock bin, bridging and caking of the powder and the like in the process of conveying and circulating. When the powder is discharged from the storage bin, because friction and cohesive force exist between particles and the inner wall of the storage bin, a vault is formed at the discharge port, the discharge port is blocked, and the discharge is difficult. The existing blanking machine cannot evenly blank powder when discharging, and has poor stability and low blanking precision.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the discharging screw flow equalizing device of the precision blanking machine, which has the advantages of simple structure, stable work, high structural strength and high blanking precision.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a precision blanking machine ejection of compact screw rod flow straightener, includes ejection of compact screw rod, and ejection of compact screw rod one end sets up to the ladder axle, and the ladder face of ladder axle is the location shaft shoulder, and the ejection of compact screw rod other end is fixed along the even interval of circumferencial direction and is provided with a plurality of fins that flow equalize, and each fin shape and size that flow equalize is all the same.

The discharging screw rod is of a hollow structure, a threaded hole is formed in the discharging screw rod along the axial direction of the discharging screw rod, a screw rod is connected in the threaded hole along the axial direction of the threaded hole in a threaded mode, the two ends of the screw rod extend out of the threaded hole respectively, and the flow equalizing fins are arranged at the end of the screw rod.

And the two end parts of the screw rod are respectively in threaded connection with locking nuts positioned on two sides of the discharging screw rod, and the locking nuts are in locking fit with the end surface of the discharging screw rod.

The flow equalizing fins are arranged into a rectangular or triangular sheet structure.

The fin that flow equalizes is divided into the same first fin of size, second fin and third fin, first fin, second fin and third fin are including the connection piece that is located the plectrum piece at both ends and is located the middle part, the plectrum piece at both ends sets up about the connection piece symmetry, first connecting groove has been seted up relatively respectively at the middle part of the connection piece one side of first fin and third fin, the second connecting groove with first connecting groove looks adaptation is seted up respectively to the connection piece middle part both sides of second fin, first fin and third fin correspond the card respectively through first connecting groove and establish in the second connecting groove of second fin both sides, first fin, second fin and third fin are crisscross to be set up and six equallies in the circumferencial direction, first fin, the piece is dialled evenly distributed on the circumferencial direction to each of second fin and third fin.

And a thrust bearing and a tapered roller bearing are arranged at the end part of the discharging screw rod positioned at the stepped shaft at intervals.

The end portion, located the stepped shaft, on the discharging screw rod is sleeved with a shaft sleeve, one end of the shaft sleeve is in key connection with the stepped shaft, and a thrust bearing is arranged on the outer wall of the shaft sleeve.

And a sealing cover is arranged on the outer side of the tapered roller bearing.

And an electrostatic release sheet is fixedly arranged at one end of the screw rod opposite to the flow equalizing fin.

The discharging screw rod is a nylon screw rod.

By adopting the technical scheme, when the feeding device works and is used, the discharging screw rod is horizontally arranged in the bin, one end of the discharging screw rod is positioned and arranged through the positioning shaft shoulder of the stepped shaft, the thrust bearing and the tapered roller bearing are adopted to ensure the stability of the discharging screw rod during rotation, the discharging screw rod is driven to rotate by the external driving motor, powder in the bin is conveyed to one end of the flow equalizing fin under the action of the discharging screw rod during rotation, and the flow equalizing fin uniformly conveys the powder during rotation to ensure stable blanking; the discharging screw is of a hollow structure, the inner thread of the discharging screw is connected with the screw, the stability of the discharging screw is greatly enhanced, and the flow equalizing fins are arranged at the end of the screw; according to the invention, the flow equalizing fin adopts the first fin, the second fin and the third fin, and six equally divided material shifting pieces are formed in the circumferential direction, so that the material blanking is fine and stable, and the blanking precision is greatly improved.

Drawings

FIG. 1 is one of the schematic structural diagrams of the present invention;

FIG. 2 is a second schematic structural diagram of the present invention;

FIG. 3 is a schematic front view of the structure of FIG. 1;

FIG. 4 is a schematic view of the discharge screw of the present invention;

FIG. 5 is a schematic view of the construction of the lead screw of the present invention;

FIG. 6 is a schematic view of the flow equalizing fin of the present invention;

FIG. 7 is a schematic view of the first, second and third fins of FIG. 6;

fig. 8 is a front view schematically illustrating the structure of fig. 6.

Detailed Description

As shown in figures 1-5, the discharging screw flow equalizing device of the precision blanking machine comprises a discharging screw 1, one end of the discharging screw 1 is provided with a stepped shaft 2, the stepped surface of the stepped shaft 2 is a positioning shaft shoulder 3, the other end of the discharging screw 1 is fixedly provided with a plurality of flow equalizing fins 4 at even intervals along the circumferential direction, the shape and the size of each flow equalizing fin 4 are the same, the flow equalizing fins 4 are arranged in a rectangular or triangular sheet structure, the discharging screw 1 is a nylon screw, the thread pitch on the discharging screw 1 can adopt equal lead or variable lead, the discharging screw 1 is arranged in a hollow structure, a threaded hole is arranged in the discharging screw 1 along the axial direction thereof, a screw rod 5 is connected in the threaded hole along the axial direction thereof, two ends of the screw rod 5 respectively extend out of the threaded hole, the flow equalizing fins 4 are arranged at the end of the screw rod 5, one end of the screw rod 5 opposite to the flow equalizing fins 4 is fixedly provided with an electrostatic releasing sheet 6, 5 both ends of lead screw respectively threaded connection have the lock nut 7 that is located 1 both sides of ejection of compact screw rod, lock nut 7 and the cooperation of the 1 terminal surface locking of ejection of compact screw rod, the tip interval that lies in step shaft 2 on ejection of compact screw rod 1 is provided with thrust bearing 8 and tapered roller bearing 9, the tip cover that lies in step shaft 2 on ejection of compact screw rod 1 is equipped with axle sleeve 10, the key-type connection between axle sleeve 10 one end and the step shaft 2, thrust bearing 8 sets up at axle sleeve 10 outer wall, the tapered roller bearing 9 outside is provided with the closing cap.

As shown in fig. 6-8, the flow equalizing fins 4 of the present invention are divided into a first fin 11, a second fin 12, and a third fin 13 with the same size, wherein the first fin 11, the second fin 12, and the third fin 13 include material shifting pieces at two ends and connecting pieces at the middle, the material shifting pieces at two ends are symmetrically disposed with respect to the connecting pieces, the middle of one side of the connecting pieces of the first fin 11 and the third fin 13 are respectively and oppositely provided with a first connecting groove 14, two sides of the middle of the connecting piece of the second fin 12 are respectively and oppositely provided with a second connecting groove 15 adapted to the first connecting groove 14, the first fin 11 and the third fin 13 are respectively and correspondingly clamped in the second connecting grooves 15 at two sides of the second fin 12 through the first connecting groove 14, the first fin 11, the second fin 12 and the third fin 13 are arranged in a staggered mode and are divided into six equal parts in the circumferential direction, and the stirring pieces of the first fin 11, the second fin 12 and the third fin 13 are evenly distributed in the circumferential direction.

When the discharging device works and is used, the discharging screw rod 1 is horizontally arranged in the bin, one end of the discharging screw rod 1 is positioned and arranged through the positioning shaft shoulder 3 of the stepped shaft 2, the thrust bearing 8 and the tapered roller bearing 9 are adopted to ensure the stability of the discharging screw rod 1 during rotation, the discharging screw rod 1 is driven to rotate by the external driving motor, powder in the bin is conveyed to one end of the flow equalizing fin 4 under the action of the discharging screw rod 1 during rotation, and the flow equalizing fin 4 uniformly conveys the powder during rotation to ensure stable discharging; according to the invention, the discharging screw rod 1 is of a hollow structure, the inner thread of the discharging screw rod is connected with the screw rod 5, the stability of the structure is greatly enhanced, and the flow equalizing fins 4 are arranged at the end of the screw rod 5; according to the invention, the flow equalizing fin 4 adopts the first fin 11, the second fin 12 and the third fin 13 to form six equally divided material shifting pieces in the circumferential direction, so that the material blanking is fine and stable, and the blanking precision is greatly improved.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.