CN2513904Y

CN2513904Y - Packer with flow control and self-turn-off technique

Info

Publication number: CN2513904Y
Application number: CN 01251915
Authority: CN
Inventors: 李建华; 邹小强
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-18
Filing date: 2001-09-18
Publication date: 2002-10-02
Anticipated expiration: 2011-09-18

Abstract

The utility model discloses a packaging machine with flow rate control and automatic turn off techniques for filling powdery materials, which is an improvement of prior ordinary packaging machine. Compared with the prior art, the packaging machine also has a frame with a impeller casing; a hopper is installed on and connected with the upper part of the impeller casing while a discharge port is installed on and connected with the lower part of the impeller casing; an impeller and a rotating shaft are installed in the impeller casing; the rotating shaft is transmitted by a motor. Its specific structure improvement is that both edge faces of the impeller and both side walls of the impeller casing are changed into a running fit structure, the exicrcle of the impeller and the inner circle surface are the running fit structure, and a double-speed or multi-speed motor is selected; the utility model cancels the mechanical valve and the pneumatic component, making the structure simplified and realizing the section filling of thick and thin streams. The utility model is particularly applicable to powdery materials like filling cement.

Description

Have flow control and turn-off the wrapping machine of technology certainly

(1) technical field: the utility model relates to cement packing equipment, is a kind ofly to have flow control and from turn-offing the wrapping machine of technology.

(2) background technology: the prior art like product is blade or the helicallobe with high speed rotating, granular material is ejected in survivor of a murder attempt's bag, and weight of powdery material reaches given value in survivor of a murder attempt's bag, by just its mechanical action of electrical equipment control, closed shutter is finished the can task.Like product mainly is divided into two kinds at present:

(1) China's design-calculated wrapping machine voluntarily, this wrapping machine do not have thickness purling dress, and gate is arranged, and its mechanical action is carried out by electromagnet and leverage.This product does not have the can of thickness flow point section, and the heavy precision of bag is difficult to control.

(2) wrapping machine of introduction of foreign technology production, this wrapping machine has thick stream and thread can, and gate is arranged, and its mechanical action is carried out by pneumatic element.The conversion of this product thickness purling dress is to realize by the switching degree that changes the filling exit gate.Pneumatic element is arranged, and in the granular material humid region because the part of gate is closed, easily cause obstruction to granular material, cause can slow and stop.Because pneumatic element is arranged, therefore to the requirements for quality height of source of the gas, pneumatic element is fragile, thus the use cost height, and maintenance capacity is big.

Above-mentioned two product impellers and impeller box are big free-running fits, therefore the inlet point on the impeller box communicates all the time with discharging opening, material stops can must being finished by gate, complex structure not only, and because the frequent action of gate, easily cause the remittance leakage conductance of granular material to cause dust pollution, environment for use is poor.

(3) summary of the invention: the purpose of this utility model is will provide a kind of to have flow control and turn-off the wrapping machine of technology certainly, to solve following problem:

(1) utilize impeller that the special tectonic of feed impeller and impeller casing realizes granular material from turn-offing, the lock slide plate of cancelling present like product is realized the shutoff technology of granular material and is cancelled the use of pneumatic element.

(2) thoroughly solve the granular material filling exit and leak grey problem.

(3) change the implementation that thickness flows in the pouring process.

The scheme that the utility model is dealt with problems is: existing normal packet installation is improved, utilize the reasonable clearance between impeller and the impeller box, make impeller automatically shut down flowing of granular material when stopping operating; Utilize the speed change of motor to realize slightly simultaneously, thread segmentation can.This wrapping machine is similar to prior art, has frame equally, impeller box is housed on the frame, the top attaching hopper of impeller box, below attaching discharging mouth, impeller and rotating shaft are housed in the impeller box, and rotating shaft is by drive of motor, and concrete structure improves and is: a. changes the big free-running fit of impeller both ends of the surface and impeller box two side into movable fit structure; The cylindrical of impeller and the inner headed face of impeller box are movable fit structure; B. single-speed motor is reelected with double speed or change speed motor.

Be the blade of protection impeller, improve service life, backplate is housed in an end face or the both ends of the surface of impeller.

It is reliable to turn-off material when impeller is stopped operating, and the blade on the impeller preferably adopts eight, to guarantee that impeller at any time stops operating, has at least two blades to form Resistance Levels, stops the granular material in the impeller box to flow out from discharging opening.

The utility model has been owing to taked above-mentioned innovative approach, so this wrapping machine can save original machinery valve and pneumatic element, makes designs simplification, and cost reduces, and has realized thick, thread segmentation can easily.

(4) description of drawings:

Fig. 1 is an integral structure scheme drawing of the present utility model;

Fig. 2 is the front view (having taken down case lid) of the utility model impeller box;

Fig. 3 is the left cutaway view of impeller box;

Fig. 4 is the front view of one of impeller;

Fig. 5 is the left cutaway view of one of impeller;

Fig. 6 is two a front view of impeller;

Fig. 7 is two a left cutaway view of impeller.

Among the figure, 1-discharging mouth, 2-frame, 3-hopper, 4-impeller box, 5-impeller, the 6-motor, 7-rotating shaft, 8-impeller box inlet point, 9-impeller box housing, 10-impeller box discharging opening, 11-case lid, the 12-stay bearing plate, 13-blade, 14-wheel shaft, 15-backplate, 16-blade, 17-back-up ring.

(5) specific embodiment: keystone configuration of the present utility model is referring to Fig. 1, and it is made up of discharging mouth 1, frame 2, hopper 3, impeller box 4, impeller 5, rotating shaft 7, double-speed motor 6.Frame 2 is formed by angle steel weldering system, on the top of frame 2 impeller box 4 is housed, and the top attaching of impeller box 4 has hopper 3, and the below attaching has discharging mouth 1, and impeller 5 and rotating shaft 7 are housed in the impeller box 4, and rotating shaft 7 is by double-speed motor 6 transmissions.The structure of impeller box 4 of the present utility model is referring to Fig. 2, Fig. 3, it is made up of impeller box housing 9 and case lid 11, it is the same with prior art to have inlet point 8 and discharging opening 10, the excircle dimension of its inner headed face size and impeller 5 designs for running-fit, and the both ends of the surface width dimensions of its two side, inner chamber width dimensions and impeller 5 designs for running-fit.

Impeller 5 of the present utility model has multiple structure: example one, referring to Fig. 4, Fig. 5, this impeller is welded by eight blades 13 and constitutes on wheel shaft 14, be to strengthen the intensity and the steadiness of blade, has installed stay bearing plate 12 additional in a side of every blade 13.Example two, referring to Fig. 6, Fig. 7, this impeller is welded by eight blades 16 and forms on backplate 15, and its wheel shaft is made one with backplate 15 and is connected with rotating shaft 7, and adds and increase back-up ring 17 with the inner sealing of blade 16, makes the material between two blades 16 must not crossfire.Example three is also to increase a backplate in the other end of example two described impellers, makes blade obtain general protection.

Claims

1. one kind has flow control and turn-offs the wrapping machine of technology certainly, has frame, impeller box is housed on the frame, the top attaching hopper of impeller box, attaching discharging mouth in below is equipped with impeller and rotating shaft in the impeller box, rotating shaft is by drive of motor, it is characterized in that: a. impeller both ends of the surface and impeller box two side are movable fit structure, and the cylindrical of impeller and the inner headed face of impeller box are movable fit structure; B. motor is selected double speed or change speed motor for use.

2. according to claim 1 have flow control and turn-off the wrapping machine of technology certainly, and it is characterized in that: an end face or the both ends of the surface of impeller are equipped with backplate.

3. according to claim 1 and 2 have flow control and turn-off the wrapping machine of technology certainly, and it is characterized in that: the blade on the impeller preferably adopts eight.