CN201890587U - Spiral quantitative feeding device - Google Patents

Abstract

The utility model discloses a spiral quantitative feeding device, which comprises a horizontal spiral conveyer, an automatic feeding adjusting device, a motor control and transmission system, a rotation angle sensor and a single chip microcomputer measurement and control system. The spiral conveyer consists of a spiral shaft, spiral blades, a cylindrical feeding barrel and the like, a rectangular feeding port is arranged on the upper portion of one end of the barrel and connected with the automatic feeding adjusting device, an end surface, which extends out of one end of the feeding port of the barrel, of the spiral shaft is connected with the transmission system, an extending portion of the other end of the spiral shaft is connected with the rotation angle sensor, the spiral shaft is in transmission with a shaft of a control motor by the aid of a synchronous belt, and the automatic feeding adjusting device consists of a cylindrical shell, a cylindrical trough, a cylindrical roller, a baffle plate and a receiving hopper. The spiral quantitative feeding device can be applied to transportation, distribution and packaging production of bulk materials in agriculture, industry, chemical industry and food processing industry.

Description

A spiral dosing apparatus

FIELD

[0001] The present invention relates to a helical dosing device belonging BACKGROUND material handling apparatus, can be used in food, chemical industry, agriculture and other industries, to achieve a stable dosing a powder or particulate material produced packaging ingredients.

Background technique

[0002] auger means has a better controllability and stability of powder and conveying particulate material, widely used in industrial minerals, agricultural materials, food processing, chemical raw materials and finished products such as transportation, ingredients and packaging production process. Auger apparatus having a simple and compact structure, reliable, easy operation and maintenance, etc. confined environment, by controlling the screw rotation speed and time, can control the feeding quantity, for afraid of extrusion, uniform density, difficult to stick the absorbent product powder and transport and feed particulate material. However, it also has such a large power loss, wear faster and other shortcomings, and auger means sensitive to overloading, where uniform feed, or prone to clogging.

[0003] implemented using a screw feeder apparatus and prepackaged dosing by Zhudeng Jie et al in "Light Industrial Machinery" describes the use of large, small double feed screw conveyor as the primary and secondary charging method developed quantitative weighing apparatus, such Weighing screw conveyor device is based on accurate dosing is possible, but the current auger apparatus for conveying materials mainly, dosing performance is often below standard.

When [0004] In the feeding process unit pitch screw feeder apparatus, the influence by the end surface of the spiral blade terminated, the helical blade to a different location, different spatial spiral blade holding material formed with the cartridge, and when the end surface of the spiral motion of the blade to the different locations, where different materials obstructed, thus producing a difference in blanking, resulting in a flow instability phenomenon of uneven; while varying the silo also influences the material flow, does not result in feeding quantity accurate, errors and other issues. Further, in the production process, while the material from the silo into the feed section of the screw feeder apparatus, the feed amount is not controlled, the large accumulation of material increases the risk of overloading the motor starting torque and the charging device, resulting in a high starting torque and can consumption and other issues. These problems greatly affect the efficiency and accuracy of the feed screw feeder device, resulting in a large loss of material and equipment damage.

SUMMARY

[0005] The present invention for unstable flow phenomenon coil current feeders and feeding method, uneven, inaccurate feeding quantity, a large error, defects in the feed amount is not controlled, there is provided a helical quantitative feeding means.

[0006] The technical solution of the present invention is: a horizontal auger feed automatic adjustment means for controlling the motor and drive, and the rotation angle sensor-chip microcomputer control system.

[0007] the horizontal axis by the screw auger, helical blade and the cylindrical feed barrel etc., fixed to the frame by a horizontal work surface. The upper open end of the cartridge has a rectangular feed opening, feed inlet and automatic adjustment means connected to the other end of the lower portion of the cartridge to open the feed opening has a circular, downwardly projecting section of the feed opening and cylindrical discharge opening , convenience and connected to the dosing device. A screw shaft having a spiral blade mounted on the barrel, rolling bearings are used to support both ends. The screw shaft end at a cylinder extending the feed inlet end surface of the driven pulley connected to the belt drive transmission system, the other end of the screw shaft are connected by a flexible connector portion projecting with angle sensor. Transmission with belt drive between the motor shaft and the control screw shaft, the screw shaft is rotated by the motor control timing belt drive. [0008] The automatic adjustment of the feeding means is a means between the magazine and the barrel between the feed port, which consists of a cylindrical housing, a cylindrical spout, cylindrical drum, baffle, funnel etc. then .

[0009] The measurement and control system comprises a one-chip microcomputer angle sensor detecting circuit controls the motor drive control circuit, one-chip microcomputer, and input-output interface, a keyboard, a display and other components.

[0010] In one aspect of the present invention by providing automatic adjustment of the feed means to reduce the influence on the material to a screw feeder hopper height variation charging stability of the device, eliminating the extruded material results in a screw barrel at the next startup transient overload phenomena, on the other hand by the rotation angle sensor for detecting the rotation angle of the screw shaft and then control the motor rotation speed, to achieve accurate quantitation of work materials. Enabling stable bulk powder or particulate material to the metering or feed, easy operation, low power consumption. It can be widely used in agricultural, industrial, chemical and transportation of bulk materials, ingredients and packaging production and food processing industry.

BRIEF DESCRIPTION

[0011] Hereinafter, the present invention as described in more detail in conjunction with accompanying drawings and specific embodiments.

[0012] FIG. 1 is a schematic view of a helical dosing device.

2 is a plan view of the device [0013] FIG 2 is fed automatically adjusted.

[0014] FIG. 3 is a schematic view of a spiral one-chip microcomputer Control System dosing device components.

[0015] FIG, 1, the horizontal conveyor screw feeder; 2, automatic feed adjustment means; 3, a cylindrical chute; 4, baffle; 5, material receiving hopper; 6, then discharge port; 7, a cylindrical housing; 8, cylindrical drum; 9, the stent A; 10, the bracket B; ll, helical blade; 12, screw shaft; 13, round the feed opening; 14, rectangular feed inlet; 15, the rolling bearing A; 17, Rolling B; 18, flexible connector; 19, cartridge; 20, the cylindrical feed tube; 21, a left end projecting portion; 22, a right end projecting portion; 23, angle sensor; 24, timing belt; 25, controls the motor J6 and drive control of the motor; 27, a driven pulley; 28, the drive pulley; 29, a feed tube; 30, a cylindrical ear; 31, hood; 32, pierced ears.

Detailed ways

[0016] As shown, the helical dosing device comprises a horizontal screw feeder conveyor automatically adjust the feed means 2 1, 2, and controls the motor drive system Shen, angle sensor 23 and the measurement and control system composed of single chip microcomputer. In the screw feeder conveyor screw shaft 121 projecting left end portion 21 is connected to the control and drive the motor shaft Shen, right protruding portion 22 by a flexible connector 18 is connected to the drive shaft angle sensor 23, the screw feeder conveyor 1 by a rectangular upper inlet 14 and the automatic adjustment of the feed means 2 is connected, a screw feeder conveyor 1 is fixed on a horizontal work surface by brackets and the bracket a 9 B 10.

[0017] The screw feeder 1 comprises a conveyor spiral blade 11, the screw shaft 12, the cartridge 19, the rolling bearing rolling A15 and B17 compositions. Helical blade 11 wound around the screw shaft 12, the pair 12 is mounted in the barrel 19 of the screw shaft, the rolling bearing A 15 at both ends of the cylinder 19, the screw shaft 12 supporting the rolling bearing B17, upper left upright cylinder 19 has a rectangular opening feed port 14, and automatically adjust the feed device 2, the lower portion further has a circular opening correct feed opening 13, through the cylindrical tube 20 and a dosing device connected to the screw shaft 12 and a left end projecting portion 21 controls the motor and drive shaft connected exclusively, a right end portion 22 extending through the flexible connector 18 is connected to the drive shaft angle sensor 23.

[0018] automatically adjust the feed means 2 comprises a cylindrical housing 7, the cylindrical tank 3, cylindrical drum 8, the shutter 4, 5 bonding composition hopper. 7 the lower end of the cylindrical housing and the feed tube four screw feeder conveyor 1 feed port 14 is connected, inside the cylindrical housing 7 is cylindrical trough 3, there are two concentric cylindrical lugs 30 symmetrically on both end surfaces of the cylindrical drum 8 , 30 fitted on the cylindrical lug 7 corresponding thereto pierced cylindrical housing 32, thereby supporting cylindrical drum 8, is mounted concentrically with the cylindrical chute 3, so that cylindrical drum 8 can be freely turned over in the cylindrical chute 3, a cylindrical 8 is welded on the drum shutter eight uniformly distributed 4. The shutter plate 4 is a rectangular, and cylindrical drum 8, as long as the cylindrical trough 3, and the outer edge thereof and the cylindrical inner wall of the spout leaving a slight gap 3, the upper end of the cylindrical housing 7 has a width slightly-right opening less than the radius of the cylindrical chute 3 a rectangular access opening 6, 5 connected to the funnel then connected to the discharge port 6, then the communication opening 6 was a cylindrical tank 3 with a rectangular duct connected to hopper 5 located cylindrical material the radius of the right tank section 3, and the opening length of the cylindrical trough 3, as long as cylindrical drum 8, is connected to a funnel 5 large upper opening, a lower end opening of small trapezoidal funnel.

[0019] Control and drive motor comprises a synchronous belt sink pair, the driven pulley 27, the hood 31, the motor drive pulley 25 and a control concept. The hood 31 is fixed on a barrel screw feeder 19, covering the driven pulley 27, a driven pulley 27 mounted on the projecting portion of the screw feeder 12 of the screw shaft 1, the drive pulley is mounted in a control concept of the motor shaft 25, the control motor 25 mounted on a horizontal work surface.

[0020] The rotational angle sensor 23 fixed to the housing 19 on the side of one end of the cartridge.

[0021] As shown in FIG. 3, the spiral-chip microcomputer measurement and control system comprises a dosing device AT89C52 single-chip microcomputer, I / 0 interface, a keyboard, a display, a rotation angle sensor detecting circuit controls the motor drive control circuit controls the motor (step motor or a servomotor). In the single-chip microcomputer keyboard and display, HMI, angle information acquisition angle sensor 23 under program control, drive control motor 25, to complete the control and velocity through an angle of screw shaft, then control the feeding quantity.

[0022] helical dosing device works as follows:

[0023] (1) the material feed process. Material from the silo into the feed hopper 5 connected, through a discharge port into the storage connection section between the cylindrical drum 4 with its 8 adjacent two baffle 6, since the connection opening 6 is open-right opposite, falling material when the impulsive force on the shutter 4 so as to drive the drum 8 is turned over, the material continues to fall with the reversing cylinder 8 in the material storage section, until through the inlet 14 into the screw feeder 1, to achieve a stable process feed.

[0024] (2) the material feed adjustment process. When the control motor 25 does not work, the material deposited beneath the inlet 14, from the bottom 4 and blocking the reversing flapper cylindrical drum 8, thereby preventing the material continues into a screw feeder, a screw feeder to achieve a the material feed regulator, to prevent overloading transient phenomenon occurs when the motor starts next time.

[0025] (3) the amount of flow of material within the unit during the test pitch profile. Spiral dosing device feeding amount of different materials at different test locations and different angular screw shaft rotational speed to obtain the relationship between the distribution of the flow amount per unit of material pitch.

[0026] (4) helix dosing process. When the helical dosing device is operated, the material enters the screw feeder 1, the single-chip microcomputer according to a control program by the measurement and control system controlling the drive motor and drive system to work, the material driven by the helical blade 11 downwardly advancing direction feed opening 13, by rotation angle sensor 12 is connected to the screw shaft 23 is detected, the screw shaft 12 is rotated to monitor the angular distribution of materials which advance the relationship between the control amount according to the material flow quantity per unit pitch accurate dosing process.

[0027] Through the above working process, the purpose of dosing the material stability control.

Claims (5)

A helical dosing device, comprising a horizontal screw feeder conveyor (1), the feed means automatic adjustment O), and drive control of the motor (26), single-chip microcomputer angle sensor and control system, characterized in that, the horizontal screw feeder conveyor (1) a screw shaft (1¾ left protruding portion and the control and drive the motor 06) connected to the drive shaft, the screw shaft (1¾ right projecting portion 0¾ by a flexible connector (18) and the angle a sensor connected to the drive shaft, auger conveyor (1) by means of a rectangular upper inlet (14) automatically adjusting the feed means (¾ connection, screw feeder conveyor (1) via a bracket a (9) and the bracket B (IO ) fixed to the horizontal work surface.

A helical dosing device according to claim 1, characterized in that, automatically adjusting the feed means (2) comprises a cylindrical housing (7), a cylindrical chute (3), a cylindrical drum (8 ), the shutter (4), then the funnel (¾; cylindrical housing (7) of the lower end of feed tube 09) and the auger conveyors (1) feed inlet (14) connected to the cylinder housing (7) internal cylindrical chute (3), a cylindrical drum (8) has two concentric cylindrical symmetrical lugs (30), a cylindrical lug (30) fitted at both ends of the cylindrical surface of the housing (7) corresponding thereto pierced ( the 3¾, thereby supporting cylindrical drum (8), the cylindrical trough (3) concentrically mounted, welded eight G baffle uniformly distributed on the drum (8)), the shutter (4) is an oblong plate, cylindrical drum inner wall (8), a cylindrical trough C3) of equal length, and the outer edge of the cylindrical tank (3) leaving a slight gap, cylindrical housing (7) upper-right opening having a width slightly is smaller than the rectangular cylindrical chute C3) connected to the discharge port of the radius (6), then it is connected to funnel (5) and connected to outlet (6), connected to the discharge port (6) of the cylindrical chute (3) right radial segment and its open The length of the cylindrical trough (3), the cylindrical roller (8) of equal length, then funnel (¾ is a large open upper end, a lower end opening of small trapezoidal funnel.

A helical dosing device according to claim 1, wherein said control and drive motor (26) comprises a timing belt (M), a driven pulley (27), the hood (31) , drive pulley (28) and a control motor (25); hood (31) on the cartridge (19) fixed to the screw feeder (1), covering the driven pulley (27), the driven pulley 07 ) mounted on the projecting portion of the screw shaft of the screw feeder (1) (1¾, the drive pulley 08) mounted on the control shaft of the motor 0¾ controls the motor 05) mounted on a horizontal work surface.

A spiral 4. The dosing device according to claim 1, characterized in that the rotational angle sensor 03) fixed to the housing on the side of one end of the cartridge (19).

A helical dosing device according to claim 1, characterized in that the measurement and control system comprises a one-chip microcomputer AT89C52 chip microcomputer, I / O interface, a keyboard, a display, a rotation angle sensor detecting circuit controls the motor driver The control circuit controls the motor; stepping motor or motors controlling the servo motor.