CN201707117U - Single-screw shaft feeding device of electrical and quantitative packing scale - Google Patents
Single-screw shaft feeding device of electrical and quantitative packing scale Download PDFInfo
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- CN201707117U CN201707117U CN2010201927040U CN201020192704U CN201707117U CN 201707117 U CN201707117 U CN 201707117U CN 2010201927040 U CN2010201927040 U CN 2010201927040U CN 201020192704 U CN201020192704 U CN 201020192704U CN 201707117 U CN201707117 U CN 201707117U
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Abstract
The utility model discloses a single-screw shaft feeding device of an electrical and quantitative packing scale, which comprises a screw shaft and a speed-reducing electric machine which drives the screw shaft to rotate. The single-screw shaft feeding device is characterized by further comprising a material transporting barrel, a device head, a rotating cup assembly, a plurality of square scrapping pieces and two weigh sensors, wherein the material transporting barrel is provided with a material inlet, one end of the material transporting barrel is fixedly connected with a speed reducer, the other end of the material transporting barrel is fixedly connected with a material transporting barrel, and the middle of the material transporting barrel can be penetrated through the device body of the single-screw shaft; the upper part of the device head is in the shape of cylinder, the device head is sleeved out of the material transporting barrel of the device body, and the lower surface of the device head is connected with the device head of a downward material guiding barrel; the rotating cup assembly mainly consists of a swinging motor and a rotating cup; the plurality of square scrapping pieces are perpendicularly fixed on the single-screw shaft at one end opposite to the material transporting barrel; and the two weigh sensors are arranged at the two sides of the material transporting barrel of the device head, each sensor is evenly suspended with a material collecting barrel which is sleeved at the lower side out of the material guiding barrel through an oscillating bearing, and the outer side of the each sensor can be sleeved and suspended with a packing bag. The device is simple in structure, high in feeding efficiency, good in use performance, and high in automaticity, and is applied to the electrical and quantitative packing of the powder and the particulate matter.
Description
Technical field
The utility model relates to a kind of weighing equipment, in particular for the electronics ration package scale of powder, particle.
Background technology
Existing universal electric ration package scale is made up of drawing-in device and weighing device usually.Because present electronic-weighing components and parts improve and modularization day by day, so, the simple relatively and complete function of described " weighing device " structure.Therefore, each ration package scale adopts the complicated and simple quality of " drawing-in device " structure to determine " packing scale " own accuracy, applicability and its usage economy to material metage.
From the principle of existing ration package scale and structure analysis as can be known, " drawing-in device " effect is to carry out the steering order of weighing material is discharged and accurately fed into weighing device in fuselage, thereby reaches the requirement of quantitative weighing and packing.
At present, the ration package scale that is used for powder, particle adopts the drawing-in device of " screw axis " structure substantially, can be divided into two kinds:
1) simple helix axle drawing-in device
Simple helix axle drawing-in device comprises 5 parts such as pipe, cylinder and the valve composition of change speed motor, speed reduction unit, screw axis, fuselage, material block section; Also comprise weighing device and packaging bag.
The principle of simple helix axle feeding is to be rotated by the driven by motor screw axis, and by its speed variation pattern of control, realizes quick and accurate feeding.But screw axis (limited) length of feeding precision and material block section is proportional, so general envelope material segment length 〉=1000≤2500mm.
2) double helix axle drawing-in device
The double helix drawing-in device increases by 1 cover minor diameter screw axis, pipe and motor on simple helix drawing-in device basis.Its objective is in order to improve the feeding precision.Double helix axle construction mode is many with level mode layout arranged side by side.Its principle of work is: the major diameter spiral is used for quick feeding, and the minor diameter spiral is used for accurate feeding, and material that large and small spiral is released falls in the packaging bag after all feeding weighing device.
The structure of above-mentioned single, double two kinds of screw feed devices in the electronics ration package scale is identical with principle of work basically, that is: material is sent into the screw feed fuselage from the upper level feed bin, rotate by drawing-in device driven by motor screw axis again, material is pushed out the block section socket, drop in the packaging bag by valve again.After weight of material in the bag reached the weight setting value, the stall of electronic weighing device control circuit instruction screw axis, valve mechanism were closed with the blocking-up material and are dropped in the packaging bag, and whole quantitative weighing process is finished.Single, double screw feed device has following weak point:
(1) resistance is big, power consumption is high.The spiral sleeve of feeding is length 500～1500mm in the cylinder of material block section, propeller blade has 1～3mm gap with the tube inwall, when propeller blade rotation propelling movement material moves through the block section vertically, paddle has extruding and shear action to material, therefore form big rotational resistance, required motor power also increases thereupon.
(2) produce residual material and material dirt.Because propeller blade is gapped with the tube inwall, thereby material meeting formation residual material in the cylinder of block section, pollute using the different types of material of same device package to produce; Residual material pushes through propeller blade, and material also can stick to the material dirt layer that an inwall forms ring-type.The gap is big more, and residual quantity is also big, and easy-clear not, influences product quality.
(3) because valve mechanism occupies the certain height space, so can increase the material falling height.Not only influence the material weighing precision, and increase the speed that material falls into packaging bag, produce more airborne dusts that overflow from the packing sack, the dust of kicking up meeting operating environment of pollution also increases material loss.
The utility model content
The purpose of this utility model provide a kind of by simple helix axle drawing-in device with the electronics ration package scale simple helix axle drawing-in device that electronic weighing device constitutes, should be able to solve single, double screw axis drawing-in device in the prior art intrinsic multiple weak point.
The technical solution of the utility model is:
A kind of electronics ration package scale simple helix axle drawing-in device, it comprises an isometrical screw axis and the reducing motor that drives its rotation, it is characterized in that also comprising:
Be provided with feeding mouth above, an end is fixedlyed connected with described speed reduction unit, and the other end is fixedly connected with feeding tube, and the fuselage of described simple helix axle can be passed in the centre;
Go up to cylindric, be enclosed within the described fuselage feeding tube outside, have discharge gate below, be connected with the head of downward guide tube below the discharge gate, this head one end and described fuselage are fixedly connected, and the other end connects with an end of simple helix axle by end plate and bearing;
The main revolving cup assembly of forming by rotary actuator and revolving cup, wherein, rotary actuator is a pneumatic means by the compressed air-driven rotor swing, one end and described end plate inboard are fixedly connected, a rotor diameter and side cylindrical shape revolving cup one end jaggy is fixedly connected, and revolving cup is enclosed within on the outside of described fuselage feeding tube and the head between the cylinder inboard;
Evenly distribute by circumference around the diameter of axle, be vertically fixed on the polylith square shape scraping blade on the simple helix axle of a relative end with described feeding tube;
Be arranged on the weight sensor of described head guide tube both sides, each sensor is hung with the aggregate tube that is enclosed within the outer downside of guide tube evenly by oscillating bearing, and the aggregate tube of this square top and round bottom does not have any contact with head, outside smocking packaging bag.
Be provided with discharging opening below the described feeding tube.
The breach of described revolving cup side on one side is provided with the sieve aperture district.
The electronics ration package scale simple helix axle drawing-in device of above structure also is provided with weighing instrument and controller, monitors and defeated material of control and weighing process by weighing instrument.Have the following advantages:
(1) simple in structure.The utility model is by a screw axis and cooperate revolving cup to come and go rotational action, can realize quick feeding, accurately feeding, block fast, drawing-in device repertoire such as shutoff.Abandon general screw feed device intrinsic envelope material segment structure and valve mechanism, so structure is not only simply and more reasonable, processing cost is lower.
(2) feeding efficient height.This programme drawing-in device does not have envelope material segment structure, so distance and resistance can reduce propeller blade dispatch material the time, the interior material of fuselage can push out discharge gate fast by screw axis and realize quick feeding, and motor power consumption is little; So feeding efficient height.
(3) to the material wide adaptability.Because the distance of this programme drawing-in device propeller blade dispatch material is short, can releases smoothly the material of flowability difference, and be difficult for caking phenomenon occurring because of extruding; To the material of good fluidity, also can realize reliable plugging action, principle of work is reliable, and it is wider to adapt to material.
(4), usability is good.This programme drawing-in device reduces material falling height h because of need not to be provided with valve mechanism, has improved the precision of weighing; And in weighing device, can put the air balance passage, thereby reduce or eliminate the dust raising phenomenon of material at packaging process.
The ration package scale that this programme is formed more is applicable to the packing instructions of chemical industry, the mass production of feed additive industry different material character.
Description of drawings
Fig. 1 is existing simple helix axle ration package scale structural representation.
Fig. 2 is existing double helix axle ration package scale structural representation.
Fig. 3 is the structural representation that Fig. 2 analyses and observe along the A-A line.
Fig. 4 is that the K of Fig. 2 is to structural representation.
Fig. 5 is the utility model master sectional structure synoptic diagram.
Fig. 6 is the plan structure synoptic diagram of Fig. 5.
Fig. 7 is the decomposing schematic representation of the utility model handpiece structure.
Fig. 8 is that Fig. 5 analyses and observe the downward structural representation of revolving cup breach along the B-B line.
Fig. 9 is that Fig. 5 analyses and observe the structural representation that the revolving cup breach makes progress along the B-B line.
Figure 10 is that Fig. 5 analyses and observe the structural representation that revolving cup sieve aperture district deposits the position along the B-B line.
Figure 11 is the enlarged diagram of revolving cup assembly structure.
Figure 12 is the structural principle synoptic diagram of the action of control rotary actuator, location.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Shown in Figure 1, be existing simple helix axle ration package scale structural representation.5 parts such as the motor 1, screw axis 2, fuselage 3, the defeated material of fuselage pipe 4, cylinder 5 that simple helix axle drawing-in device comprises subsidiary speed reduction unit and valve 7 are formed, and are LOAD CELLS 6, aggregate tube 8 in addition and are packaging bags 9.
The principle of simple helix axle feeding is motor 1 drive screw axis 2 rotations by subsidiary speed reduction unit, with the speed variation pattern, realizes quick and accurate feeding.But, feeding precision and material block section, promptly screw axis (limited) length of the defeated material of fuselage pipe 4 is proportional.General envelope material segment length 〉=1000≤2500mm, H is bigger for the material falling height.
Shown in Figure 2, be existing double helix axle ration package scale structural representation.The double helix drawing-in device increases a cover minor diameter screw axis 11, little defeated material pipe 10 and motor 12 on simple helix drawing-in device basis.Its objective is in order to improve the feeding precision.Double helix axle construction mode is many with level mode layout arranged side by side, sees shown in Figure 3ly, is the structural representation that Fig. 2 analyses and observe along the A-A line; By among the figure as can be known, king bolt axle 2 and minor diameter screw axis 11 are arranged side by side.And for example shown in Figure 4, the K that is Fig. 2 is to structural representation, and this figure can illustrate its principle of work: major diameter screw axis 2 is used for quick feeding, and minor diameter screw axis 11 is used for accurate feeding.When valve 7 is opened in cylinder 5 work, large and small screw axis 2,11 the material of releasing all feed and fall in the packaging bag, after weighing device is weighed, monitor and whether control defeated again expects by weighing instrument and controller.
As can be known, in single, double screw axis drawing-in device, all design the fuselage defeated material pipe 4 of length 〉=500mm and the mechanism of valve 7 from Fig. 1～4, H is bigger for the material falling height.Purpose has two: the firstth, prevent that the good material earial drainage of fuselage internal mobility is to weighing device; The secondth, the quick blocking material makes it and can not fall in the packaging bag.But the envelope material section of this structure and the equal association of valve have jointly, obvious defects.
Fig. 5 and shown in Figure 6 is that master of the present utility model analyses and observe and the plan structure synoptic diagram, and in conjunction with the enlarged diagram of Fig. 7 decomposing schematic representation and Figure 11 revolving cup assembly structure as can be known, fuselage 15 is fixing crossing by a vertical tube and a horizontal tube, the inner chamber formation that communicates; Wherein, suitable for reading 27 of vertical tube is a charging aperture, and left end is provided with feeding tube 29, is provided with discharging opening 31 below this feeding tube 29.The two ends of fuselage 15 connect with head 16 and reducing motor 13 with flange respectively.The axial line of fuselage 15 and head 16 is provided with the screw axis 14 of a φ ≈ 200cm, and this head of 14,16 medial extremitys weldering is fixed with the rectangular scraping blade 17 of polylith, and scraping blade 17 evenly distributes by circumference around the diameter of axle and is vertically fixed on the axle.The left end head of screw axis 14 constitutes rotation by shaft coupling 23, bearing 33 with the output shaft 34 of rotary actuator 21 and connects, and the right-hand member head also constitutes driving coupling with reducing motor 13, and is rotated by reducing motor 13 drive screw axis 14.The contour structures of head 16 is last for horizontal cylinder, is guide tube 24 down, wherein, has the rectangle discharge gate corresponding with feeding tube discharging opening 31 under the horizontal cylinder, and one of the following connection of discharge gate is shaped as the guide tube 24 of square top and round bottom as guide.Two outsides of guide tube 24 are provided with aggregate tube 25 by weight sensor 28, the aggregate tube 25 of this square top and round bottom and head 16 no any contacts, outside smocking packaging bag 26.
By Fig. 5～7, can see that in conjunction with Figure 11 the head 16 that has been fixedly connected in the fuselage 15 left end flanges outside also is provided with rotary actuator 21 and revolving cup 18 in the horizontal cylinder of head 16.Rotary actuator 21 is the standardized products by the prior art of its rotating shaft 34 of compressed air-driven and 19 swings of axle upper rotor part thereof, and one end and spill end plate 20 inboards are fixedly connected.And passing end plate 20, its rotating shaft 34 left ends connect with the center fixation of rotating disk 22.The end that rotor 19 outsides and a side have the cylindrical shape revolving cup 18 of breach 32 is fixedly connected, and the middle part of revolving cup 18 is enclosed within on the outside of described fuselage feeding tube 29 and the head 16 between the cylinder inboard.Revolving cup 18 can be done about 270 ° and come and go rotation under the drive of rotary actuator 21, and can stop the optional position in slewing area.Revolving cup 18 be one cylindric, have breach 32 on the side of cylinder, this breach 32 is about 130 ° and sees Fig. 7～10, as discharging channel; Next-door neighbour's breach 32 side on one side is provided with sieve aperture district 30.Rotary actuator 21, rotor 19, revolving cup 18 and end plate 20 are assembled into one promptly becomes the revolving cup assembly.Because the diameter of revolving cup 18 is a bit larger tham fuselage 15 left end feeding tubes 29 diameters, so revolving cup 18 can be inserted in whole feeding tube 29 in the revolving cup.But the rotor 19 of rotary actuator 21 still can drive revolving cup 18 is made≤270 ° of scopes around feeding tube 29 axial lines round rotation of concentric circles; Not only can make the breach 32 of revolving cup 18 downward in the rotation, or upwards locate, and breach 32 is stopped or round the rotation in rotational angle range on the optional position.See for details shown in Fig. 8～10.
Shown in Figure 8, be that Fig. 5 analyses and observe the downward structural representation of revolving cup breach along the B-B line.In the drawings, revolving cup 18 is under the drive of rotary actuator 21 rotors, and the breach 32 of revolving cup 18 is downward, and is corresponding with the discharge gate and the guide tube 24 of the discharging opening 31 of fuselage 15 feeding tubes, head 16, all discharge downwards.Horizontal cylinder both sides at head 16 are provided with weight sensor 28, each sensor 28 is hung with the aggregate tube 25 that is enclosed within guide tube 24 outer downsides evenly by oscillating bearing, the aggregate tube 25 of this square top and round bottom and head 16 no any contacts, lower outside smocking packaging bag 26.The circular passage of institute's shape is then as the usefulness of draining dust between guide tube 24 and the aggregate tube 25, and when material in the material metage process falls in 26 from eminence toward packaging bag, the dust of kicking up does not overflow operating environment of pollution from the sack limit, shown in the arrow among the figure.
Shown in Figure 9, be that Fig. 5 analyses and observe the structural representation that the revolving cup breach makes progress along the B-B line, Figure 10 is that Fig. 5 analyses and observe the structural representation that revolving cup sieve aperture district deposits the position along the B-B line.Because two figure mainly are two states of expression revolving cup 18 rotational positioning, other structure is constant, and succinct for drawing, so only drawn top, identical with Fig. 8 of lower part omitted it.By among the figure as can be known, when revolving cup 18 when breach 32 is upwards located under the drive of rotary actuator rotor 19, the discharging opening 31 of fuselage feeding tube 29 is by revolving cup 18 housing shutoff, revolving cup 18 and fuselage feeding tube 29 form the cavity of a sealing, make the blocked discharge gate that can not release head 16 of powder in the fuselage.When the breach 32 of revolving cup 18 downwards, but when forming certain included angle θ, see Figure 10, under the sieve aperture district 30 of revolving cup 18 is in horizontal line, the breach 32 and the fuselage feeding tube discharging opening 31 of revolving cup 18 overlap, and the discharging area of feeding tube discharging opening 31 is reduced; Only allow material from numerous sieve apertures and the discharge gate that diminishes, to discharge.Form the passage and the mode of a may command withdrawal rate.
The assembling of screw axis 14 and effect: when screw axis 14 left ends connected with the 34 formation rotations of rotary actuator output shaft with shaft coupling 23, bearing 33,17 of scraping blades were inserted in the feeding tube 29 of fuselage 15 left ends thereupon on the screw axis 14.Between the rotating diameter of scraping blade 17 and feeding tube 29 internal diameters little gap is arranged, the effect of scraping blade 17 is that the material in feeding tube 29 and 18 sections of revolving cup is scraped discharge gate, makes material to falling into weighing device---in the packaging bag 26.The right-hand member of screw axis 14 passes the right side of fuselage 15, connects connection by shaft coupling and reducing motor 13, and by reducing motor 13 driven in rotation.Decelerator is the combination of reductor and motor.Drive screw axis 14 when decelerator 13 rotates and rotate, materials in the fuselage 15 can be pushed out discharge gate in the head 16 toward left end.The fast pusher amount of rotating speed is big; Otherwise the slow pusher amount of rotating speed is few.Reducing motor 13 can be driven speed of screw shaft and be done the speed variation by the controller speed governing.Controller is then by the weighing instrument programmed control.
As shown in Figure 5, the utility model also comprises weighing instrument and controller, weigh and the packaging process of whole material are all monitored by weighing instrument, and by controller control reducing motor 13, rotary actuator 21 and weight sensor 28 work, finish to fail and expect and weighing process.Wherein, the weighing-up wave that weight sensor 28 produces flows to weighing instrument and controller, and the gravimetric value of material shows on instrument after treatment.Described weighing instrument and controller are prior aries, or by the technician in this field according to the prior art setting.
Shown in Figure 12, be the structural principle synoptic diagram of the action of control rotary actuator, location.As we know from the figure, when the control instrument follow procedure makes control coil 40 energisings of 3 position-5 way Pneumatic valve 44, the passage of pressurized air 42 by valve body 44 enters rotary actuator 21 and makes rotor 19 and drive rotating disk 22, revolving cup 18 counterclockwise to rotate, and can make revolving cup 18 breach 32 downward; In like manner, if the control instrument program makes another passage coil 39 energisings of Pneumatic valve 44, pressurized air 42 enters 21 of rotary actuators from another passage rotates rotary actuator rotor 19 in a clockwise direction, and band revolving cup 18 breach 32 upwards.When the equal no power of Pneumatic valve coil 39,40, pressurized air is ended by valve body 44, and rotary actuator 21 just stops operating; Meanwhile, the control instrument follow procedure makes control coil 41 energisings of bi-bit bi-pass Pneumatic valve 43, and pressurized air 42 enters brake cylinder 35 by a passage of valve body 43, makes 35 pairs of rotating disks of brake cylinder 22 carry out caliper and decides.
From Figure 12 still as can be known, but the angle when adopting the rotation of the photoelectric sensor perception rotating disk 22 comprise that light emitting diode 36 and light-operated switch 37 constitute change.Be provided with the printing opacity information hole 38 at a plurality of intervals on the periphery of rotating disk 22, light emitting diode 36 and light-operated switch 37 are located at the both sides in rotating disk printing opacity information hole 38 respectively.Its perception principle is: when the light beam that sends when light emitting diode 36 passes light hole 38 and shines light-operated switch 37, and light-operated switch 37 conductings; Otherwise the light beam that diode 36 sends is blocked in the time of can not shining light-operated switch 37, and light-operated switch 37 ends.
By above-mentioned principle, when rotating disk 22 was rotated by rotary actuator 21 bands, each printing opacity information hole 38 was by photoelectric sensor, and control instrument just obtains an electric impulse signal that is provided by sensor, correspondingly the also rotational angle of perception revolving cup 19.Therefore, but the needs of control instrument follow procedure, according to obtaining the electric impulse signal number, instruction is sent in requirement by weighing, make Pneumatic valve coil 39,40 be in the state of energising or outage respectively, thereby the turning to of control rotary actuator rotor, braking and rotational angle size realize rotation, location to revolving cup 18.
Principle of work of the present utility model is:
Material is from 25 chargings suitable for reading of fuselage 15, and can store in fuselage 15, connects weighing instrument and controller, and relevant power supply.
(a) quick feeding: rotate by weighing instrument and controller control rotary actuator 21 related revolving cups 18, and the breach 32 that makes revolving cup 18 is downwards during the location, 32 of the breach of revolving cup 18 and fuselage 15, head 16 discharge gates overlap and form a straight-through discharge gate; Then, steering order makes reducing motor 13 direct connections drive screw axis 14, apace the material in the fuselage 15 is then pushed out straight-through discharge gate left by the rotation of screw axis 14 paddles, falls into by guide tube 24 in the packaging bag 26 of below.
(b) feeding at a slow speed: when need at a slow speed during feeding,, the breach 32 of revolving cup 18 is rotated in a clockwise direction, form certain included angle θ with horizontal line with identical control mode.Under the sieve aperture district 30 of revolving cup 18 was at this moment, discharging speed was restricted.Simultaneously, steering order correspondingly slows down screw axis 14 speed commentaries on classics, scraping blade 17 on the screw axis 14 then can scrape the material in the revolving cup 18 to the discharge gate that reduces area slightly, and material also can spill in the packaging bag 26 that falls into the below on a small quantity from sieve aperture in the sieve aperture district 30 simultaneously.
Continue to rotate in a clockwise direction when steering order makes rotary actuator 21 rotors, angle theta diminishes gradually, and discharge gate is littler; Corresponding screw axis 14 speed change slower, and the material of discharging from discharge gate is few more, and control discharge weight precision is high more.
Another kind of mode: screw axis 14 does not rotate, but revolving cup 18 is done to come and go by a small margin to rotate, similar mesh screen thing principle, then material can spill the weighing device that comprises weight sensor 28 and packaging bag 26 that falls into the below on a small quantity from the sieve aperture district 30 of revolving cup 18, reaches a small amount of feed door.
In feeding procedure at a slow speed, stop up sieve aperture and can not discharge if material occurs, then control program sends instruction after judging automatically: make 32 counter-rotatings of revolving cup 18 breach, strengthen discharge gate, guarantee that discharge carries out.
(C) block/the shutoff material: when need stopped discharge, screw axis 14 stopped operating, simultaneously directly over breach 32 fast steerings of revolving cup 18, and then discharge gate sealing, material is blocked and discharge stops.
(d) the feeding action is described with weighing process
Down, weighing device all is in treats material level to ration package scale in working order; The related revolving cup 18 of rotor of beginning weighing device (instrument) direction of passage valve control rotary actuator 21 rotates, under the breach 32 of revolving cup 18 rotated to by top (initial bit), the reducing motor of controller control simultaneously 13 direct connections drive screw axis 14 and fast the material of storing in the fuselage 15 are pushed out discharge gate by the rotation of screw axis 14 paddles, fall in the packaging bag 26 of below.
When above-mentioned quick feeding capacity reaches preset weight 95% value, the related revolving cup 18 of control program instruction rotary actuator 21 rotors is the certain angle of fast rotational in the direction of the clock, make revolving cup 18 breach 32 by under deflect into the position that angle theta is arranged with horizontal line, discharge gate diminishes thereupon, the reducing motor of controller control simultaneously 13 reduces the rotating speed of screw axis 14, on the one hand material in the fuselage is slowly shifted onto the discharge gate place of its left end, scraping blade 17 on the axle head then scrapes discharge gate in a small amount with this material, and falls in the packaging bag 26.In addition, a small amount of material spills from sieve aperture.Whole feeding procedure is at a slow speed regulated by control program, through 3～5 second time feeding at a slow speed, weight of material in the packaging bag 26 reach the setting weight value, and directly over control program instruction revolving cup 18 fast rotational arrive, screw axis 14 stalls simultaneously, quantitative package action cycle of weighing finishes.Whole charging, defeated material and weighing are finished the automaticity height by heavy instrument and the control of controller follow procedure.
In addition, in above-mentioned feeding procedure, the airborne dust that produces in the packaging bag 26 is discharged head upper by the sandwich passage between guide tube 24 and the aggregate tube 25, after airduct is collected, passes back into the upper level storage bin, not operating environment of pollution.
Claims (3)
1. electronics ration package scale simple helix axle drawing-in device, it comprises an isometrical screw axis and the reducing motor that drives its rotation, it is characterized in that also comprising:
Be provided with feeding mouth (27) above, an end is fixedlyed connected with described reducing motor (13), and the other end is fixedly connected with feeding tube (29), and the fuselage (15) of described simple helix axle (14) can be passed in the centre;
Go up to cylindric, be enclosed within described fuselage feeding tube (29) outside, have discharge gate below, be connected with the head (16) of downward guide tube (24) below the discharge gate, these head (16) one ends and described fuselage (15) are fixedly connected, and the other end connects with an end of simple helix axle (14) by end plate (20) and bearing (21);
The main revolving cup assembly of forming by rotary actuator (21) and revolving cup (18), wherein, rotary actuator (21) is a pneumatic means by compressed air-driven rotor (19) swing, one end and described end plate (20) inboard are fixedly connected, cylindrical shape revolving cup (18) one ends of rotor (19) external diameter and a side jagged (32) are fixedly connected, and revolving cup (18) is enclosed within the outside and the head (16) of described fuselage feeding tube (29) and goes up between the cylinder inboard;
Evenly distribute by circumference around the diameter of axle, be vertically fixed on the polylith square shape scraping blade (17) on the simple helix axle (14) with the relative end of described feeding tube (29);
Be arranged on the weight sensor (28) of described head guide tube (24) both sides, each sensor (28) is hung with the aggregate tube (25) that is enclosed within the outer downside of guide tube (24) evenly by oscillating bearing, the aggregate tube of this square top and round bottom (25) does not have any contact with head (16), outside smocking packaging bag (26).
2. electronics ration package scale simple helix axle drawing-in device according to claim 1 is characterized in that:
Be provided with discharging opening (31) below the described feeding tube (29).
3. electronics ration package scale simple helix axle drawing-in device according to claim 1 is characterized in that:
The breach (32) of described revolving cup (18) side on one side is provided with sieve aperture district (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201927040U CN201707117U (en) | 2010-05-17 | 2010-05-17 | Single-screw shaft feeding device of electrical and quantitative packing scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201927040U CN201707117U (en) | 2010-05-17 | 2010-05-17 | Single-screw shaft feeding device of electrical and quantitative packing scale |
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| Publication Number | Publication Date |
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| CN201707117U true CN201707117U (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201927040U Expired - Fee Related CN201707117U (en) | 2010-05-17 | 2010-05-17 | Single-screw shaft feeding device of electrical and quantitative packing scale |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071575A (en) * | 2013-03-25 | 2014-10-01 | 北新集团建材股份有限公司 | Loading system and loading method |
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- 2010-05-17 CN CN2010201927040U patent/CN201707117U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071575A (en) * | 2013-03-25 | 2014-10-01 | 北新集团建材股份有限公司 | Loading system and loading method |
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