CN103978717A - Domestic mechanical oil press - Google Patents

Abstract

The invention relates to a domestic mechanical oil press which is simple and reasonable in structure and high in oil extraction rate of a material to be pressed. The domestic mechanical oil press comprises a pressing mechanism, wherein the pressing mechanism is a spiral pressing mechanism, and comprises a spiral pressing rod and a pressing cylinder; a multi-stage pressing space is formed in the pressing cylinder through the spiral pressing rod; the pressing force of the multi-stage pressing space is gradually increased from the inlet to the outlet; the density of the material to be pressed in the multi-stage pressing space is gradually increased from the inlet to the outlet. The domestic mechanical oil press has the advantages of high oil extraction rate of the material to be pressed, convenience and sanitation in pressing process, simpleness and practicality in structure, easiness in collecting extracted oil and the like.

Description

Domestic appliance formula oil press

[technical field]

The present invention relates to a kind of home appliance, particularly a kind of simple and reasonable for structure, squeeze the high domestic appliance formula oil press of material oil yield.

[background technology]

Along with people's living standard improves gradually, start food health more and more to pay attention to.Especially frequently occur in China that in recent years poor quality food threatens the many social topic of people's life security, people more and more be cannot set one's mind at ease the food of selling on market, keep someone at a respectful distance gradually, always wish that all food is all oneself personally to complete relievedly to eat.

Particularly, these the 2 years frequent all kinds of severe events that occur about edible oil, such as waste oil, blend oil, swill wet goods event frequently enters people's sphere of life, allow people hear all with one's hair standing on end at every turn, an a kind of life difficult problem that can self-centered oil-servicing facilities concerns life to solve thoroughly these of eager needs, flee from this food pollution endocrator in deep distress, so a kind of oil press of family expenses just arises at the historic moment.

No matter the also industrial oil press that is family expenses just refers to the effect by means of mechanical external force, grease is squeezed out from oil plant.It can be divided into hydraulic press liquefaction machine, spiral liquefaction machine, novel hydraulic oil press and high-efficiency precision filter oil press.Screw oil expeller is the more one squeezing liquefaction equipment of at present application, and it has continuous treatment amount and greatly, dynamically squeezes short, the advantage such as oil yield is high, labour intensity is low of time.Just the operation principle of spiral industrial oil press is transplanted on Domestic oil press so have the people of initiative spirit, is made its compact in size, work easy, uses just-in-time.

Recent spiral Domestic oil press truly has significant progress in technology innovation, no matter be at feeding mechanism, and oil press, oil-collecting mechanism, or auxiliary body is all accompanied by the significantly lifting of scientific and technological content.The press mechanism of oil press comprises squeezing bar and squeezing tin, squeezes bar and is enclosed within squeezing cylinder, and the rotation by squeezing bar in squeezing cylinder is pushed to squeeze and expected, the grease in squeezing material is extruded, along the outflow of squeezing cylinder.In this expressing process, if squeeze the unreasonable structure of bar, can cause the extruding of squeezing material incomplete, residue contains the material slag of grease in a large number, greatly reduces and squeezes the oil yield efficiency of expecting.Same, if squeeze the unreasonable structure of cylinder, can cause the oil plant of squeezing out directionless mobile, cause local leakage of oil, can be in oil-out flow to oil-collecting mechanism, cause the recovery speed of oil plant excessively slow, the shortcoming of a large amount of excessive wastes of oil plant and the inadequate health of oil expression process.

In sum, also there are a lot of weak points in existing oil press, need on squeezing structure, can innovate to some extent in a hurry, makes up many deficiencies of its existence, makes Domestic oil press faster, safer, more practical each family that enters into.

[summary of the invention]

Low for overcoming existing oil equipment squeezing material oil yield, it is slow that oil plant reclaims speed, and the antihygienic technical barrier of oil expression process the invention provides a kind of squeezing and expects that oil yield is high, it is fast that oil plant reclaims speed, and press mechanism is simple, reasonable, the novel household mechanical type oil press of health.

The scheme of technical solution problem of the present invention is to provide a kind of domestic appliance formula oil press, it comprises a press mechanism, this press mechanism is a screw press mechanism, this press mechanism comprises that a spiral squeezes bar and and squeezes cylinder, this spiral squeezes bar and is squeezing cylinder formation one Multistage squeezing space, the squeeze force in this Multistage squeezing space increases from the inlet to the outlet gradually, and the squeezing material density in this Multistage squeezing space increases from the inlet to the outlet gradually.

Preferably, this Multistage squeezing space further comprises at least one density concentration zones, and this density concentration zones is arranged at Multistage squeezing space tail end or is arranged at intervals in Multistage squeezing space.

Preferably, the squeezing material in this Multistage squeezing space is subject to squeezing squeeze force and the shearing force of bar simultaneously.

Preferably, this squeezing drum outer wall arranges a heater, squeezes cylinder inwall and is provided with multiple Oil Guides loop.

Preferably, this heater is dynamically fixed on this squeezing drum outer wall, and the clout after squeezing material, the oil of squeezing out and squeezing squeezing in cylinder is heated.

Preferably, this squeezing cylinder inwall is provided with at least one cannelure, and this squeezing drum outer wall arranges at least one arc oil-out, and the arc length of this oil-out is the 1/4-1/2 of this squeezing cylinder outer circle girth.

Preferably, this squeezing cylinder inside is provided with at least one bar-shaped trough, and this bar-shaped trough and this cannelure connect, and this bar-shaped trough is between the oil-out and tail end in Multistage squeezing space.

Preferably, the cross section that this spiral squeezes the thread of bar is trapezoidal, and the angle of its two hypotenuse is 5-30 °.

Preferably, thread and the screw channel of spiral squeezing bar are arc transition structure.

Preferably, this squeezing drum outer wall is provided with heater and arc oil-out, this heater squeezes material to squeezing treating in cylinder, clout after oil and the squeezing of squeezing out heats, this squeezing cylinder inwall arranges at least one bar-shaped trough and at least one cannelure, this bar-shaped trough and this cannelure connect, this cannelure is corresponding to the arc oil-out that squeezes drum outer wall, the cross section that this spiral squeezes the thread of bar is trapezoidal, the angle of its two hypotenuse is 5-30 °, its thread and screw channel are arc transition structure, the pitch that this spiral squeezes bar equates, at the tail end that squeezes bar, one backgauge mouth is set, form a density concentration zones being piled into by clout at this backgauge mouth place.

Compared with prior art, the thread of family expenses domestic appliance formula oil extruder bar of the present invention retains certain gradient on two waist limits, make this squeezing pole pair squeeze material and not only there is extruding force forward, also be subject to squeezing pole pair simultaneously and squeeze the radial shear power of expecting, impel and squeeze material in pushing ahead, also bear and squeeze the extruding force between an inwall, by the composition principle of power, making to squeeze material, internal grease is quicker, easier is extruded.Under the simplest structural change, make the oil yield that squeezes material improve 10%-25%.

And on the squeezing cylinder of press mechanism, the present invention arranges two oil collecting rings in the inside of squeezing cylinder oil-out place, can to greatest extent the product oil squeezing out all be collected in to oil-out place and carry out fuel-displaced.This oil collecting ring can also slow down the extruding of the inner squeezing material of squeezing cylinder to squeezing cylinder simultaneously, avoids stopping up at oil-out place a large amount of extruding particles, reduces the oil yield efficiency of product oil.Also be provided with square groove and triangular groove uniformly at intervals at the inwall that squeezes cylinder, this square groove and triangular groove can produce enough rotational resistances to squeezing the inner squeezing material of cylinder, obtain enough forward propulsion thereby make to squeeze material, complete the lasting expressing process that squeezes material.This square groove and triangular groove are all groove structure, and are connected with oil collecting ring, therefore the product oil away from oil-out place can be flow to the oil-out place of oil collecting ring along groove by square groove and triangular groove, accelerate the collection efficiency of product oil.

When squeezing cylinder and squeezing after bar coordinates, by coordinating of each screw channel and squeezing tin, form multiple squeezings space.The volume in this squeezing space reduces gradually, squeeze material is extruded gradually in this squeezing space, and its extruding force increases gradually, the density of squeezing after material is extruded also increases gradually, impel the squeezing material oil yield in multiple squeezings space to increase gradually, expect that reaching last squeezes behind space, all extrudes all greases that squeeze material until squeeze.Therefore, squeeze material by after squeezing so step by step, its oil yield that squeezes material is very high.

In addition, squeezing bar afterbody of the present invention is provided with a gear mouth, because the existence of this gear mouth can be in continuing squeezing, at gear, a mouthful place forms fine and close material slag density concentration zones, the product oil squeezing out from squeeze cylinder can not flowed out from slag notch, and can only be back to the oil-out place of squeezing cylinder, and greatly improve the functional oil that of press mechanism, also ensured that whole expressing process is convenient, healthy simultaneously.

[brief description of the drawings]

Fig. 1 is the perspective view of domestic appliance formula oil press of the present invention.

Fig. 2 is the solid blast structural representation of domestic appliance formula oil press of the present invention, and it comprises case, base, driving mechanism, feed mechanism, press mechanism and oil-collecting mechanism.

Fig. 3 is the perspective view of case.

Fig. 4 is the three-dimensional assembling structure schematic diagram of driving mechanism, feed mechanism and base, and driving mechanism comprises drive motors and decelerator.

Fig. 5 is the three-dimensional assembling structure schematic diagram of press mechanism, feed mechanism, driving mechanism.

Fig. 6 is the solid blast structural representation of press mechanism, and it comprises squeezing bar, squeezes cylinder and heater.

Fig. 7 is the perspective view of squeezing bar.

Fig. 8 is the cross-sectional view of squeezing bar.

Fig. 9 squeezes cylinder and the mounting structure schematic diagram of holder.

Figure 10 is the planar structure schematic diagram that squeezes cylinder.

Figure 11 is the cross-sectional view of squeezing cylinder.

Figure 12 is the another directional profile structural representation that squeezes cylinder.

Figure 13 is the three-dimensional mounting structure schematic diagram of oil-collecting mechanism, press mechanism, base.

[detailed description of the invention]

In order to make object of the present invention, technical scheme and advantage are clearer, below in conjunction with accompanying drawing and embodiment, the present invention are further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

Refer to Fig. 1 and Fig. 2, domestic appliance formula oil press 100 of the present invention comprises shell 10, driving mechanism 20, feed mechanism 30, press mechanism 40 and oil-collecting mechanism 50, this shell 10 comprises a case 101 and base 103, after coordinating, case 101 and base 103 form a cavity, by driving mechanism 20, feed mechanism 30, press mechanism 40 and oil-collecting mechanism 50 are contained in its inside.Driving mechanism 20, for feed mechanism 30 and press mechanism 40 provide power source, keeps feed mechanism 30 and press mechanism 40 along with work is carried out in the rotation of driving mechanism 20.Feed mechanism 30 and press mechanism 40 keep certain corresponding relation in position, make to squeeze material and can enter into smoothly in press mechanism 40 by feed mechanism 30.Oil-collecting mechanism 50 is independent of driving mechanism 20, feed mechanism 30 and press mechanism 40, and it has independent power source, mutually close with press mechanism 40 in position.This driving mechanism 20, as the major impetus mechanism of this domestic appliance formula oil press 100, is being controlled the start and stop of whole equipment; This feed mechanism 30 squeezes material by the uninterrupted maintenance of power of driving mechanism 20 and can supply successively, and keeps extracting grease no matter oarse-grained squeezing material or short grained squeezing material can enter in press mechanism 40 smoothly; This press mechanism 40 carries out mechanical type extruding by its internal structure by the squeezing material entering, and makes the internal grease of squeezing material be extruded out, and the extruding tailing of the product oil of extruding and squeezing material is separated; Oil-collecting mechanism 50 is that the edible oil that press mechanism 40 is extruded reclaims filtration, improves the organic efficiency of product oil and the purity of product oil.Domestic appliance formula oil press 100 of the present invention is mainly as family expenses, and it squeezes material can be the raw materials such as oarse-grained peanut, corn, walnut, olive, can be also the raw materials such as short grained sesame, vegetable seed, sunflower.

Refer to Fig. 3, these case 101 profiles are one square, its bottom opening, and inner hollow, forms the shell structure of a protection bell-type, can accommodate driving mechanism 20, feed mechanism 30, press mechanism 40 and oil-collecting mechanism 50.This case 101 is under use state, and its bottom opening keeps down, is provided with hopper 1011 and control panel 1014 at the top of case 101, and this hopper 1011 is positioned at a jiao of top surface, and control panel 1014 is positioned at another angle of top surface.This hopper 1011 is a domatic invaginating structure, and the Main Function of this structure is conveniently to make to squeeze material to enter in the structure of case 101 inside by gravity.

A side at case 101 is provided with a relief hole 1013, and another side is provided with a dismounting hole 1012.Relief hole 1013 is circular, and it is corresponding with press mechanism 40, on the one hand from then on the tailing squeezing after material squeezing is discharged in hole, on the other hand for supporting and location press mechanism 40.Dismounting hole 1012, for inserting dismounting knob or dismounting screw, when family expenses mechanical type oil press 100 used after a period of time, can easily be taken out press mechanism 40 by the dismounting element in dismounting hole 1012.

Refer to Fig. 4, driving mechanism 20 comprises drive motors 201 and decelerator 203, and this drive motors 201 is connected with decelerator 203 by four connecting bolts 205, and the power of realizing drive motors 201 is sent in decelerator 203 and externally exports.The power resources of feed mechanism 30 are in decelerator 203, and this feed mechanism 30 is connected feed mechanism 30 by Connection Element with decelerator 203, realize power transmission.

Refer to Fig. 5, press mechanism 40 is fixed on feed mechanism 30, and insert in the transmission axis hole of decelerator 203 feed mechanism 30 one end, and the other end connects press mechanism 40, drives press mechanism 40 to carry out work.

Refer to Fig. 6, press mechanism 40 comprises and squeezes bar 401, squeezes cylinder 403 and heater 405, squeezes bar 401 and is inserted in and squeezes in cylinder 403, and heater 405 is fixed on the outer surface that squeezes cylinder 403.When use, squeeze lasting rotation of bar 401 and will squeeze material extruding, the product oil of extruding and the dregs of fat are flowed out and are discharged by squeezing cylinder 403.Heater 405 adopts electrically heated mode, heats and is passed to the squeezing bar 401 that squeezes cylinder 403 inside squeezing cylinder 403, inner squeezing material is heated to certain temperature and squeezes.

Refer to Fig. 7 and Fig. 8, squeezing bar 401 is that a spiral squeezes bar, is provided with multiple threads 4011 on it, between every two threads 4011, is screw channel 4012.The one end of squeezing bar 401 is spindle nose 4013, and spindle nose 4013 is shaped as square, and this spindle nose 4013 matches with decelerator 203, for transmitting rotational power.Squeeze the other end of bar 401 for slagging tap 4016, slag tap 4016 for squeezing clearing ends for bar 401, slag tap and 4016 discharge by extruding for the squeezing tailing that squeezing is expected with squeezing after cylinder 403 coordinates.Being thread initiating terminal 4017 squeezing bar 401 near first thread 4011 of spindle nose 4013 one end, is thread clearing end 4018 squeezing bar 401 near last thread 4011 of 4016 one end of slagging tap.Identical to the spacing of every two threads 4011 between thread clearing end 4018 at thread initiating terminal 4017, thread initiating terminal 4017 is L to the length between thread clearing end 4018, and the spacing of every two threads 4011 is 1/4L mono-1/16L.But screw channel 4012 degree of depth differences between every two threads 4011, screw channel 4012 degree of depth of thread initiating terminal 4017 are H, screw channel 4012 degree of depth of thread clearing end 4018 are 3/4H mono-1/4H, be preferably 1/2H, and its screw channel 4012 degree of depth are to reduce gradually, make to squeeze material extruding dynamics and increase gradually, fuel-displaced more thorough.The cross sectional shape of thread 4011 is approximately trapezoidal, the top of trapezoidal thread 4011 is the most significant end of thread 4011, go to the bottom near screw channel 4012 places, two waist limits are the both sides of thread 4011, two corresponding waist limits of every two threads 4011 with go to the bottom between screw channel 4012 described in forming.The angle on 4011 liang of waist limits of each thread is 5-30 °, thread 4011 go to the bottom and screw channel 4012 between form a fillet, the radius of this fillet is the 1/4-3/4 of top width.The main purpose that adopts this shape is can realize squeezing material and being subject to extruding force and the shearing force of thread 4011 in when extruding simultaneously, makes to squeeze material and produces a large amount of interior heat, impels the generation of product oil and flows.

At thread clearing end 4018 and slag tap and have a gear mouth 4015 between 4016, this gear mouth 4015 is an annular.Owing to squeezing material the extrusion process from thread initiating terminal 4017 to thread clearing end 4018, screw channel 4012 degree of depth diminish gradually, extruding force increases gradually, the dregs of fat that generate just increase gradually, the final dregs of fat from slag tap 4016 be extruded before, can form fine and close annular extrusion layer at gear mouthful 4015 places, the liquid product oil of squeezing out can, from 4016 outflow of slagging tap, not spilt in oil-collecting mechanism 50 but be back to oil port.

Refer to Fig. 9 and Figure 10, squeezing cylinder 403 is a cylindrical drum, and these squeezing cylinder 403 inner diameters are identical with squeezing bar 401 diameters.Its one end is charging link 4031, and the other end is slag notch 4036, and this slag notch 4036 is with to squeeze slagging tap of bar 401 4016 corresponding, and centre is provided with oil-out 4033.Charging link 4031 comprises that a squeezing cylinder feeding mouth 4041 and squeezes cylinder keyway 4045, squeezes a feeding mouth 4041 and squeeze cylinder keyway 4045 subregions to arrange, and regional centroid is 90 ° at squeezing cylinder 403 outer walls.The size positions of squeezing cylinder feeding mouth 4041 is corresponding with hopper 1011, squeezes cylinder keyway 4045 corresponding with feed mechanism 30.When installation, will squeeze cylinder 403 and insert in feed mechanism 30, after ensureing that a squeezing cylinder feeding mouth 4041 is aimed at hopper 1011, squeeze cylinder keyway 4045 with squeezing 4043 insertions of cylinder flat key, and make to squeeze cylinder 403 and be fixedly connected with feed mechanism 30.

Please participate in Figure 11 and Figure 12, squeeze the corresponding oil-out of cylinder 403 inwalls 4033 places and have two oil collecting rings 4032, oil collecting ring 4032 forms an annular groove at squeezing cylinder 403 inwalls, the width of this oil collecting ring 4032 is greater than the width of this oil-out 4033, article two, oil-out 4033 connects at annular groove place and squeezes cylinder 403 outer walls and oil collecting ring 4032, this oil-out 4033 is arc, and its circular arc is long for squeezing the 1/4-1/2 of cylinder 403 circumference circles, preferably 1/3.At these two oil collecting rings, 4032 places, owing to being groove structure herein, can slowing down and squeeze cylinder 403 and squeeze the extruding force between material, avoid crushing to squeeze material and stop up oil-out 4033; This oil collecting ring 4032 also has oil collecting function simultaneously, can effectively collect and squeeze the product oil that cylinder 403 ends overflow, and is pooled to oil-out 4033 and flows in oil-collecting mechanism 50.To slag notch 4036 these segment length distances, on squeezing cylinder 403 inwalls, be provided with three square grooves 4034 and 4035, three square grooves 4034 of three triangular grooves and three triangular groove 4035 intervals settings at oil collecting ring 4032.Square groove 4034 is strip groove with triangular groove 4035, and three square grooves 4034 and three triangular grooves 4035 of parallel strip arrange with 60 ° of radians uniformly at intervals at squeezing cylinder 403 inwalls.These three square grooves 4034 and three triangular grooves 4035 are groove structure, can increase the rotational resistance that squeezes material, and the onward impulse of material is squeezed in increase, make to squeeze the material squeezing material process that completes continuously and healthily; Simultaneously because these three square grooves 4034 are connected with oil collecting ring 4032 places with three triangular grooves 4035, the product oil that can effectively squeezing cylinder 403 inwalls be produced is everywhere pooled to oil collecting ring 4032 places by this groove, makes the product oil Rapid Flow squeezing out to oil-out 4033.

Refer to Figure 13, oil-collecting mechanism 50 is placed on base 103, and its top is corresponding to press mechanism 40, and after press mechanism 40 will squeeze material squeezing, the product oil of squeezing out is in press mechanism 40 flows to oil-collecting mechanism 50.

In the process using, first squeezing material is put into hopper 1011, start drive motors 201 and drive feed mechanism 30 to start working by decelerator 203, now feed mechanism 30 starts to promote to ensure smooth pan feeding to squeezing material.When decelerator 203 runnings drive feed mechanism 30 to work, also can drive squeezing bar 401 to rotate, because the thread 4011 that squeezes bar 401 reduces highly gradually, the area that holds of screw channel 4012 just reduces gradually, impel squeezing bar 401 to increase gradually the extruding force of squeezing material, the grease now squeezing in material is just extruded gradually, and flows in oil-collecting mechanism 50 along the oil-out 4033 that squeezes cylinder 403.In expressing process, can start heater 405, make expressing process under steady temperature, continue to carry out, impel squeezing more abundant, improve the oil yield that squeezes material.

Finally, the product oil that press mechanism 40 is squeezed out flows in oil-collecting mechanism 50 and carries out filtered and recycled.

Compared with prior art, the thread 4011 that domestic appliance formula oil press 100 of the present invention squeezes bar 401 retains certain gradient on two waist limits, make this squeezing bar 401 not only there is extruding force forward to squeezing material, also be subject to squeezing bar 401 to squeezing the radial shear power of material simultaneously, impel and squeeze material in pushing ahead, also bear and squeeze the extruding force of cylinder between 403 inwalls, by the composition principle of power, make to squeeze material internal grease is quicker, easier and be extruded.Under the simplest structural change, make the oil yield that squeezes material improve 10%-25%.

And on the squeezing cylinder 403 of press mechanism 40, the present invention arranges two oil collecting rings 4032 in the inside of squeezing cylinder 403 oil-out 4033 places, can to greatest extent the product oil squeezing out all be collected in to oil-out 4033 places and carry out fuel-displaced.This oil collecting ring 4032 can also slow down the extruding of the inner squeezing material of squeezing cylinder to squeezing cylinder 403 simultaneously, avoids stopping up a large amount of extruding particles at oil-out 4033 places, reduces the oil yield efficiency of product oil.Also be provided with square groove 4034 and triangular groove 4035 uniformly at intervals at the inwall that squeezes cylinder 403, this square groove 4034 and triangular groove 4035 can produce enough rotational resistances to the squeezing material that squeezes cylinder 403 inside, thereby make to squeeze material and obtain enough forward propulsion, complete the lasting expressing process that squeezes material.This square groove 4034 and triangular groove 4035 are all groove structure, and be connected with oil collecting ring 4032, therefore the product oil away from oil-out 4033 places can be flow to oil-out 4033 places of oil collecting ring 4032 by square groove 4034 and triangular groove 4035 along groove, accelerate the collection efficiency of product oil.

After squeezing cylinder 403 coordinates with squeezing bar 401, by coordinating of each screw channel 4012 and squeezing cylinder 403, form multiple squeezings space.The volume in this squeezing space reduces gradually, squeeze material is extruded gradually in this squeezing space, and its extruding force increases gradually, the density of squeezing after material is extruded also increases gradually, impel the squeezing material oil yield in multiple squeezings space to increase gradually, expect that reaching last squeezes behind space, all extrudes all greases that squeeze material until squeeze.Therefore, squeeze material by after squeezing so step by step, its oil yield that squeezes material is very high.

In addition, squeezing bar 401 afterbodys of the present invention are provided with a gear mouth 4015, because the existence of this gear mouth 4015 can be in continuing squeezing, at gear, mouthful 4015 places form fine and close material slag density concentration zones, the product oil squeezing out from squeeze cylinder 403 can not flowed out from slag notch, and can only be back to oil-out 4033 places of squeezing cylinder 403, and greatly improve the functional oil that of press mechanism 40, also ensured that whole expressing process is convenient, healthy simultaneously.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within principle of the present invention, are equal to and replace and within improvement etc. all should comprise protection scope of the present invention.

Claims (10)

1. a domestic appliance formula oil press, it comprises a press mechanism, this press mechanism is a screw press mechanism, this press mechanism comprises that a spiral squeezes bar and and squeezes cylinder, it is characterized in that: this spiral squeezes bar and squeezing cylinder formation one Multistage squeezing space, the squeeze force in this Multistage squeezing space increases from the inlet to the outlet gradually, and the squeezing material density in this Multistage squeezing space increases from the inlet to the outlet gradually.

2. domestic appliance formula oil press as claimed in claim 1, is characterized in that: this Multistage squeezing space further comprises at least one density concentration zones, this density concentration zones is arranged at Multistage squeezing space tail end or is arranged at intervals in Multistage squeezing space.

3. the domestic appliance formula oil press as described in claim 1-2 any one, is characterized in that: the squeezing material in this Multistage squeezing space is subject to squeezing squeeze force and the shearing force of bar simultaneously.

4. domestic appliance formula oil press as claimed in claim 1, is characterized in that: this squeezing drum outer wall arranges a heater, squeezes cylinder inwall and is provided with multiple Oil Guides loop.

5. domestic appliance formula oil press as claimed in claim 4, is characterized in that: this heater is dynamically fixed on this squeezing drum outer wall, and the clout after squeezing material, the oil of squeezing out and squeezing squeezing in cylinder is heated.

6. domestic appliance formula oil press as claimed in claim 4, is characterized in that: this squeezing cylinder inwall is provided with at least one cannelure, and this squeezing drum outer wall arranges at least one arc oil-out, and the arc length of this oil-out is the 1/4-1/2 of this squeezing cylinder outer circle girth.

7. domestic appliance formula oil press as claimed in claim 6, is characterized in that: this squeezing cylinder inside is provided with at least one bar-shaped trough, and this bar-shaped trough and this cannelure connect, and this bar-shaped trough is between the oil-out and tail end in Multistage squeezing space.

8. domestic appliance formula oil press as claimed in claim 1, is characterized in that: the cross section that this spiral squeezes the thread of bar is trapezoidal, and the angle of its two hypotenuse is 5-30 °.

9. domestic appliance formula oil press as claimed in claim 8, is characterized in that: thread and screw channel that spiral squeezes bar are arc transition structure.

10. domestic appliance formula oil press as claimed in claim 1, it is characterized in that: this squeezing drum outer wall is provided with heater and arc oil-out, this heater squeezes material to squeezing treating in cylinder, clout after oil and the squeezing of squeezing out heats, this squeezing cylinder inwall arranges at least one bar-shaped trough and at least one cannelure, this bar-shaped trough and this cannelure connect, this cannelure is corresponding to the arc oil-out that squeezes drum outer wall, the cross section that this spiral squeezes the thread of bar is trapezoidal, the angle of its two hypotenuse is 5-30 °, its thread and screw channel are arc transition structure, the pitch that this spiral squeezes bar equates, at the tail end that squeezes bar, one backgauge mouth is set, form a density concentration zones being piled into by clout at this backgauge mouth place.