CN201451288U - Screw-type extruder - Google Patents
Screw-type extruder Download PDFInfo
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- CN201451288U CN201451288U CN2009200688459U CN200920068845U CN201451288U CN 201451288 U CN201451288 U CN 201451288U CN 2009200688459 U CN2009200688459 U CN 2009200688459U CN 200920068845 U CN200920068845 U CN 200920068845U CN 201451288 U CN201451288 U CN 201451288U
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Abstract
The utility model provides multi-screw extrusion forming equipment which sequentially comprises feeding equipment (20), a screw extruder (10), an extrusion die (40), cutting equipment (30), a rotary motor box (50) and coating equipment; the cavity of the multi-screw extruder (10) comprises three screws. The cavity of the screw extruder (10) is provided with an inner layered cavity which is integrated with an internal screw; in addition, the cavity is also provided with an outer layered cavity (7); the three screws form a three-screw structure and are arranged separately up and down; and the lower layered screw and the two upper layered screws are respectively closed and meshed. By adopting the three-screw structure, the multi-screw extrusion forming equipment improves the extrusion efficiency and the space utilization rate, and can effectively improve the highest yield of single extrusion equipment without expanding the occupied area of the equipment.
Description
Technical field
The utility model relates to a kind of screw extruder, specifically adopt the extruder of three screw rods and supporting extrude, device such as excision forming, coating comes device that premixed rice flour mash or dough are processed, belongs to food processing technology field.
Background technology
Along with increase day by day to the requirement of the nutrition of food, the bread basket and the production method thereof of various composite nutrients are also developing by leaps and bounds, from the pre-steaming method technology of early stage acid, directly soak technologies such as suction method and coating method, develop into nowadays more complete:, obtain the technological process of multi-nutrient fortification composite cereal at last from cereal pulverizing → preliminary treatment → mix with nutrient → push → excision forming → drying → screening → join rice in proportion.
And the step of extruding-excision forming wherein is the important step in the production process, single screw rod or the twin (double) screw extruder generally taked, the hydrate of cereal powder is pushed the back by certain shape mould, obtain the cereals of needed shape, size through cutting, and on corresponding conveyer belt, carry, until check and packaging step.
Referring to accompanying drawing 1, international open text (WO01/72151) discloses a kind of incorporate composite cereal mixing, extruding, former.Comprise raw material blending device, twin (double) screw extruder, extrusion device, excision forming equipment.Raw material blending device wherein and twin (double) screw extruder link to each other by the vertical transport pipeline that is communicated with, and be provided with control valve in pipelines, to adjust speed and the product efficiency that the premix raw material enters extruder.Be arranged in parallel in the twin (double) screw extruder screw rod of two mutual interlocks of screw thread rotates in opposite directions, makes the material of from top to bottom carrying can carry out compacting fully and conveying.End at extruder has extrusion dish, offer a plurality of extrusion cavities on the extrusion dish, be close to the extrusion cavities place and be provided with cutter sweep, the strip-shaped materials that squeezes out can be cut into needed strip, granular or sheet products, to meet the needs of various cereal joint products.
Referring to accompanying drawing 2, United States Patent (USP) (US5350585) discloses a kind of double-screw structure of extruder.Described double-screw structure is divided into multistage, and its thread density is all inconsistent, to cooperate the needs in each stage in the extrusion process.Simultaneously, also offer the cavity in the screw rod, so that material fully mixes in screw extruder.
Yet traditional single screw rod or twin (double) screw extruder have some shortcomings:
1, the screw rod of traditional twin (double) screw extruder directly is positioned in the cavity of ellipse or circular cross-section, and in extruding and the course of conveying, material is easy to pile up in some position generation, thereby squeezing effect is reduced again.
2 and owing in the screw rod cavity packing phenomenon is often arranged, and these deposits of failing for a long time fully to be pushed can condense into piece after after a while, thus the uniformity coefficient of integral product output efficiency and product influence, need often to clear up.Yet the screw rod of traditional twin (double) screw extruder is changed the process difficulty, and after shutting down, screw rod still can produce mechanical rotation because of the structure of mutual interlock, causes the accident easily.
3, the extruding efficient of the extrusion structure of traditional single screw rod or twin-screw improves and can only obtain by increasing screw size, yet can cause the decline of the extruding efficient and the extruding quality of entire equipment along with the increase of screw size.
The utility model content
The utility model provides a kind of screw extruder, comprise feed arrangement (20) successively, screw extruder (10), extrusion die (40), cutter sweep (30), rotary motor case (50), and coating unit, wherein: described feed arrangement (20) is for having the loading hopper of flow control valve and monitoring equipment; Described screw extruder (10) comprises the cavity that screw rod is installed, supporting strut, and with many screw rods of the mutual airtight interlock of inside cavity; Described extrusion die (40) has two extrusion dishes (41), and extrusion dish is the frustum shape, and extrusion is distributed on the outer ring surface of disk; Described cutter sweep (30) comprises cutter (31), cutter moving track (32), and described cutter (31) are close to the extrusion dish setting;
Include three screw rods in the cavity of described screw extruder (10);
Described screw extruder (10) and extrusion die (40) Lin Chu that joins is provided with and extrudes connecting portion (60).
Above-mentioned screw extruder, wherein, described basic connecting portion comprises upper strata domatic (61) and lower floor's outlet (62), is used for that material is concentrated to the bottom and carries.
Above-mentioned screw extruder, wherein, described three screw rods are formed three-screw-rod structure, and three screw rod branch upper strata screw rod group and lower floor's screw rod is two-layer arranges;
The upper strata screw rod group comprises the first upper strata screw rod (1) and the second upper strata screw rod (2), and contactless between its two upper strata screw rods, the rotation direction of two screw rods is consistent; Lower floor's screw rod (3) and upper strata screw rod (1,2) airtight interlock respectively, and lower floor's screw rod rotation direction is opposite with upper strata screw rod direction.
Above-mentioned screw extruder, wherein,, the angle that the axle center of described upper strata screw rod (1,2) is become with lower floor screw rod axial connecting line is 75-85 °.
Above-mentioned screw extruder, wherein,, described extruder is three screw extruders (10), comprises three extruding screw (1,2,3) and charging notches (5) that constitute screw rod group, described charging notch is the downward conical funnel of the vertex of a cone.
Above-mentioned screw extruder, wherein, described three-screw-rod structure, the screw rod that is positioned at the below is as the active screw rod, by drive motor; Two screw rods that are positioned at the top are rotated by the screw thread drive of mutual interlock as driven screw rod.
Above-mentioned screw extruder, wherein, described three-screw-rod structure, totally three screw rods of screw rod group are by the gear drive of CD-ROM drive motor by the speed governing unanimity.
Above-mentioned screw extruder wherein, has an internal layer cavity in the cavity of described screw extruder (10), with the whole combination of internal screw; The shape of internal layer cavity is close to the edge setting of screw-rod structure; Internal layer cavity (6) is outer also to be provided with an outer cavity (7), is sealed with double-screw structure in the described internal layer cavity, and is supported between the outer cavity (7).
Above-mentioned screw extruder wherein, also is provided with a temperature control equipment (8) between described internal layer cavity and outer cavity.
Above-mentioned screw extruder, wherein, described temperature control equipment is an electric heater unit, and is furnished with a plurality of temperature control equipments of regulation and control respectively along screw rod cavity axial segmentation.
Above-mentioned screw extruder, wherein, described extrusion formation equipment comprises two groups or above screw extruder (10), and two groups of extruders are arranged in opposite directions, shared same extrusion die (40), described two extrusion dishes (41) and screw extruder omnidirectional distribution.
Above-mentioned extrusion forming device, wherein, described screw extruder (10) with described internal layer cavity and the whole taking-up of screw rod, is realized the whole replacement of described screw rod group in changing the screw rod process.
By the technical scheme that the utility model adopted, can obtain following advantage:
1, improves extruding efficient and utilization of space, can under the situation that does not enlarge the hold facility area, effectively increase the maximum output of separate unit extrusion equipment.
2, reduce the solid accumulation phenomenon, and reduced the cleaned and changed frequency of screw rod.
3, be convenient to the integral replacing and the repairing of screw rod, avoid changing the safety problem that produces in the screw rod process, and can under non-stop-machine situation, realize check maintenance the control of external cavity and temperature, checkout gear.
4, for control of the segmentation in the process of extrusion modling and maintenance, provide possibility.
Description of drawings
The extruder of Fig. 1 prior art;
The double-screw structure of Fig. 2 prior art;
The horizontal view of Fig. 3 the utility model extrusion formation equipment;
The vertical view of Fig. 4 the utility model extrusion formation equipment;
Fig. 5 screw extruder sectional view of the present utility model;
Of the present utility model pair of extruder omnidirectional distribution of Fig. 6 figure;
Fig. 7 screw rod of the present utility model is extruded structure chart;
The attemperating unit of Fig. 8 combined threaded rod extruder of the present utility model is with respect to the distribution map of a screw rod wherein.
The specific embodiment
Referring to accompanying drawing 3 and accompanying drawing 4, be the vertical view of the utility model pressurizing unit horizontal flow chart and equipment.Comprise feed arrangement (20), screw extruder (10), extrusion die (40), cutter sweep (30), rotary motor case (50), wherein, described feed arrangement (20) is for having the loading hopper of flow control valve and monitoring device; Described screw extruder (10) comprises the cavity that screw rod is installed, supporting strut, and with many screw rods of the mutual airtight interlock of inside cavity; Described extrusion die (40) has two extrusion dishes (41), and extrusion dish is the frustum shape, and extrusion is distributed on the outer ring surface of disk; Described cutter sweep (30) comprises cutter (31), cutter moving track (32), and described cutter (31) are close to the extrusion dish setting.Material enters screw extruder (10) by feed arrangement (20), there are twin-screw or multiscrew structure to carry out the extruding and the conveying of level in the screw extruder, and described material finally is accumulated to an end of close extrusion die (40), by the screw rod rotation process that continues, material is pushed into extrusion die, and via the extrusion cavities in the mould, described extrusion cavities is distributed on the circular extrusion dish (41), and material is extruded thus.Described extrusion dish by a turning cylinder, is connected by turning cylinder (51) with the rotary motor case (50) of outside, and the axial transmission of the turning cylinder by motor makes extrusion dish rotate with certain speed.According to the speed governing of motor, the rotating speed of described extrusion dish is controlled between the 35RPM to 85RPM, and preferred rotating speed is 45RPM to 55RPM.
Extrusion die (40) equipment has two extrusion dishes (41), and extrusion dish is the frustum shape, and less at a side bore of extrusion die, and bigger at the side bore away from extrusion die.And be distributed with extrusion (42) on the extrusion dish, extrusion is distributed on the outer ring surface of disk.The preferred extrusion cavities arrangement of the utility model, extruding on the disk (41) as shown in Figure 3,3 one group arrangement of extrusion, and 3 extrusions of every group are arranged along the disk tangential direction.Can press certain angle with respect to disk and distribute,, be divided into and join 4 groups as 90 ° of angles.Perhaps also can take 120 ° of angles to distribute 3 groups or 60 ° of angles to distribute other equal mode for cloth such as 6 groups.The diameter of extrusion dish (41) is typically chosen between 15 to 65 centimetres, is preferably 15 centimetres of extrusion dishes to 30 cm diameters.The diameter of extrusion (42) is controlled to be between 1 millimeter to 15 millimeters, and the extrusion dish that can select to have different diameter extrusion cavities according to different product requirements as an alternative.The bore dia that wherein is preferred for making the extrusion of production reconstituted rice kernels equipment is 1.2 millimeters or 3.8 millimeters, so that the finished product final size can be near natural rice.The shape of described extrusion also can adopt other shapes such as square, rectangle, ellipse.
In the cutter sweep in the pressurizing unit of the present utility model, cutter (31) are moved horizontally by moving track (32) guiding, and moving track impels cutter to move back and forth as horizontal cross by drive motor and the driving-belt control that is placed in the cutter sweep; Distance between the reciprocating motion plane of cutter and the disc face of described basic disk is controlled between 2～12 millimeters. and wherein preferred range is 2～5 millimeters. simultaneously, on described cutter sweep, be provided with antidetonation and buffer structure in the moving track on cutter, cushion pad for example, buffer spring, and the antidetonation groove of between described moving track and cutter, making with padded coaming. simultaneously, the length of cutter is greater than extruding disk diameter, and its lower end should be lower than the position of disk bottom. the length of cutter should be short as far as possible, also being convenient to the cutting process smoothness with minimizing vibrations amplitude of vibration carries out. and the length of cutter is generally between 35 to 75 centimetres, be preferably more than and extrude 8 to 10 centimetres of disk diameters, and the lower end is lower than and extrudes 2 to 2.5 centimetres in disk.
Referring to Fig. 5, cross sectional view for the combined screw-type extruder of the utility model preferred embodiment, has an internal layer cavity (6) in the cavity of described screw extruder (10), same internal screw (1,2,3) whole combination also comprises a charging notch (5), is used to allow the premix raw material enter extrusion equipment; The shape of internal layer cavity (6) is close to the edge setting of screw-rod structure; Internal layer cavity (6) is outer also to be provided with an outer cavity (7), is sealed with the three-screw-rod structure that three screw rods are formed in the described internal layer cavity, and is supported between the outer cavity (7).And three screw rods divide upper strata screw rod group (1,2) and two-layer the arranging of lower floor's screw rod (3).Wherein, the upper strata screw rod group comprises the first upper strata screw rod (1) and the second upper strata screw rod (2), and two screw rod height are identical, do not contact mutually, and rotation direction is identical, and material falls between the screw rod of upper strata by charging notch (5), pushes and mill through screw rod to enter the cavity zone line.Lower floor's screw rod (3) and upper strata screw rod group (1,2) difference interlock, the rotation direction of lower floor's screw rod (3) and the direction of rotation of upper strata screw rod group.The angle that the axle center of two upper strata screw rods is become with lower floor screw rod axial connecting line is 75-85 °, wherein preferred 80-83 °.Under the bottom of screw extruder be provided with thermostat layer (9), in be filled with isothermal liquid or steam, with the bulk temperature of assurance device greater than 40 ℃.
Therefore, the material that enters zone line enters the screw rod group bottom by lower floor's screw rod and the second upper strata screw rod (2) extruding rear section, and remainder enters in the transmission locus of the second upper strata screw rod (2).Subsequently, the material of bottom is after first upper strata screw rod (1) co-extruded, and part enters in the first upper strata screw rod, pushes with the lower floor screw rod once more; Remainder then enters zone line.Enter the material of zone line and the material that directly falls into,, enter respectively in the bottom and the second upper strata screw rod via the lower floor's screw rod and the second upper strata screw rod extruding by the charging notch.It should be noted that, in the extruder of this kind three-screw-rod structure, material resides in carries the time proportion of extruding more in lower floor's screw rod, account for overall 65%～80%, and have only partial material to get back in the screw rod of upper strata through extruding, simultaneously relevant with the viscosity characteristics of material itself, the material that viscosity is bigger, the ratio regular meeting that enters upper strata screw rod extruding is bigger.
Therefore, except routine utilize gear structure reach the device of rotation driving that drives three screw rods simultaneously implement the extruding, also can make two screw rods in top driven by the mode that only drives lower floor's screw rod along screw thread, realize the extruding of material, and reduce too much idle running and power consumption effectively, realize the utilization to greatest extent of power output.
Have fixed structure between described internal layer cavity and outer cavity, to keep the stable of two-layer cavity, fixed structure is conventional mechanical configurations such as mounting flange, fixed support; And the cushion that described fixed structure also can be made for porous material.And, in the space, bottom of described outer cavity and internal layer cavity, be provided with temperature-adjusting device (8), be heater specifically, may be selected to be resistance heater or steam fumarole, and detect the temperature of each section by the temperature sensor that is arranged on the axial diverse location of extruder.By being arranged on the axially heater of each section, regulate again, reach the control of multistage temperature, be convenient to the extruded product of difference extruding degree and position is carried out temperature control by electric control circuit or steam valve.
Referring to Fig. 7, internal screw perspective view and extrusion topology view for the stacked extruder of three screw rods of the present utility model, wherein, the second upper strata screw rod 2 is in same level height with another root first upper strata screw rod 1 (not shown), and it is stacked with lower floor screw rod 3. in the exit of screw extruder, and between the corresponding extrusion die, has the connecting portion of extruding 60, the internal layer cavity 6 form fit ground of extruding connecting portion 60 and screw rod forms, and its cross sectional shape also cross sectional shape of threaded extruder is consistent, be up big and down small structure. in the horizontal direction, this side view of extruding connecting portion 60 as shown in Figure 7, its upper strata domatic 61 is used for by extruding screw 1,2 materials that squeeze out are piled up to the bottom, and finally the material extruding is entered in the extrusion die by outlet at bottom 62. find according to practice, in the material extrusion of three screw extruders of the present utility model, owing to reach the screw rod arrangement of this kind screw extruder about gravity, 70% material will finally be extruded extruder from the bottom more, thereby, for material can more effectively be delivered in the extrusion die, connecting portion 60 is arranged on extruder as intermediate module the exit of extruding that has domatic and outlet at bottom, so that more effectively extruded material is collected in advance, improve extruding efficient.
Referring to Fig. 8, view for segmentation heating spiral rod device of the present utility model, as shown in the figure, only identify lower floor's screw rod (3), every screw rod all is divided into multistage, comprises extrusion tip (106), be distributed with first extruded segment (101) vertically successively, second extruded segment (102), the 3rd extruded segment (103), the 4th extruded segment (104) and the 5th extruded segment (105).The thread density of every section extruded segment is all inequality, and wherein the first extruded segment thread density maximum of the most close end (106) secondly is second extruded segment and the 4th extruded segment, and the 3rd extruded segment and the 5th extruded segment thread density are less.And, near corresponding each extruded segment, also be assigned heater (8) piecemeal, and specifically can be divided into first heater (81) according to different extruded segment, second heater (82), the 3rd heater (83), the 4th heater (84), slender acanthopanax thermic devices (85).And described heater is in the middle of two screw rod belows, each free independent temperature-adjusting device control.In the utility model, described heater is the thermal resistance of coiling, and is equipped with temperature sensor at corresponding heater place, so that regulate the temperature conditions of each specific position, can realize stepped temperature control.The extrusion temperature of screw extruder generally is controlled at 45-60 ℃, wherein at the 5th extruded segment place that material enters, temperature is controlled at 45-50 ℃, and the 4th extruded segment place temperature is 50-55 ℃, the 3rd extruded segment place temperature is 45-55 ℃, and first and second extruded segment temperature is 55-60 ℃.
Referring to Fig. 6, be of the present utility model pair of extruder omnidirectional distribution structure chart.Comprise two groups screw extruder (10), two groups of extruders are arranged in opposite directions, shared same extrusion die (40), described two extrusion dishes (41) and screw extruder omnidirectional distribution.Simultaneously, also can take the shared same extrusion dies of screw extruder (10) (40) more than layered mode is realized two groups up and down, and the inwall of described extrusion die (40) need pass through dilatation and structure-reinforced, so that it can bear the common immense pressure that produces of many group extruders.
Screw extruder of the present utility model, wherein, described extrusion forming device comprises two groups or above screw extruder (10), and two groups of extruders are arranged in opposite directions, be communicated to same extrusion die (40), described two extrusion dishes (41) and screw extruder omnidirectional distribution.
Above-mentioned screw extruder, wherein, described screw extruder (10) is in changing the screw rod process, by stopping the screw drive axle, subsequently screw rod and the internal layer cavity that is coated on the screw rod outside are unclamped jointly to a certain degree, promptly leave driving shaft fixed position 25 to 50 centimeters, with mechanical arm or hangar system, screw rod internal layer cavity and inner screw rod are replaced simultaneously, and new screw rod cavity and screw rod is mounted on the plant equipment.
Be provided with the dismounting groove on the internal layer cavity of screw rod, the dismounting groove distributes vertically, is positioned on the tangent plane direction of two screw rod contact points.And, by dismantling groove behind its length direction cutting damage, the internal layer cavity can be opened, thereby take out the screw rod be coated on respectively in the cavity, clean separately and safeguard.And can put new internal layer cavity and recycle.
Extrusion molding apparatus of the present utility model, wherein, described cutter sweep below is provided with conveyer, and conveyer is accepted the product of cutter sweep excision forming, is transported to an oven dry treating apparatus.Conveyer more specifically is a conveyer belt, its be positioned at extrusion under, and the outside is coated with the funnel-form casing, becomes scattered about outside the conveyer belt after avoiding product to extrude.
On the direction of transfer of conveyer belt, also be provided with liquid film application system or paint finishing, with ediblely film, coating material such as edible oil, grease is coated on the product particle.
Coat film can play prevent the cereal hydrate inter-adhesive, with the adhesion of machine, further prevent contingent cracking in the follow-up dry run, also be beneficial to the shape of keeping granular cereal hydrate.
Foregoing is enumerating of specific embodiment of the utility model, for the wherein not equipment of detailed description and structure, should be understood to take the existing conventional equipment in this area to be implemented.
Claims (10)
1. screw extruder, comprise feed arrangement (20) successively, screw extruder (10), extrusion die (40), cutter sweep (30), rotary motor case (50), and coating unit is characterized in that: described feed arrangement (20) is for having the loading hopper of flow control valve and monitoring equipment; Described screw extruder (10) comprises the cavity that screw rod is installed, supporting strut, and with many screw rods of the mutual airtight interlock of inside cavity; Described extrusion die (40) has two extrusion dishes (41), and extrusion dish is the frustum shape, and extrusion is distributed on the outer ring surface of disk; Described cutter sweep (30) comprises cutter (31), cutter moving track (32), and described cutter (31) are close to the extrusion dish setting;
Include three screw rods in the cavity of described screw extruder (10);
Described screw extruder (10) and extrusion die (40) Lin Chu that joins is provided with and extrudes connecting portion (60).
2. screw extruder as claimed in claim 1 is characterized in that, the described connecting portion (60) of extruding comprises upper strata domatic (61) and lower floor's outlet (62), is used for that material is concentrated to the bottom and carries.
3. screw extruder as claimed in claim 1 is characterized in that, described three screw rods are formed three-screw-rod structure, and three screw rod branch upper strata screw rod group and lower floor's screw rod is two-layer arranges;
The upper strata screw rod group comprises the first upper strata screw rod (1) and the second upper strata screw rod (2), and contactless between its two upper strata screw rods, the rotation direction of two screw rods is consistent; Lower floor's screw rod (3) and upper strata screw rod (1,2) airtight interlock respectively, and lower floor's screw rod rotation direction is opposite with upper strata screw rod direction.
4. screw extruder as claimed in claim 2 is characterized in that, described extruder is three screw extruders (10), comprise three extruding screws (1 that constitute screw rod group, 2,3) a three-screw-rod structure and a charging notch (5), described charging notch are the downward conical funnel of the vertex of a cone.
5. screw extruder as claimed in claim 4 is characterized in that, described three-screw-rod structure, and the screw rod that is positioned at the below is as the active screw rod, by drive motor; Two screw rods that are positioned at the top are rotated by the screw thread drive of mutual interlock as driven screw rod.
6. screw extruder as claimed in claim 4 is characterized in that, described three-screw-rod structure, and totally three screw rods of screw rod group are by the gear drive of CD-ROM drive motor by the speed governing unanimity.
7. as any described screw extruder in the claim 1 to 6, it is characterized in that having an internal layer cavity in the cavity of described screw extruder (10), with the whole combination of internal screw; The shape of internal layer cavity is close to the edge setting of screw-rod structure; Internal layer cavity (6) is outer also to be provided with an outer cavity (7), is sealed with double-screw structure in the described internal layer cavity, and is supported between the outer cavity (7).
8. screw extruder as claimed in claim 7 is characterized in that, also is provided with a temperature control equipment (8) between described internal layer cavity and outer cavity, and thermostat layer (9) is arranged at described screw extruder (10) bottom.
9. screw extruder as claimed in claim 8 is characterized in that, described temperature control equipment is an electric heater unit, and is furnished with a plurality of temperature control equipments of regulation and control respectively along screw rod cavity axial segmentation.
10. screw extruder as claimed in claim 9, it is characterized in that, described extrusion formation equipment comprises two groups or above screw extruder (10), two groups of extruders are arranged in opposite directions, shared same extrusion die (40), described two extrusion dishes (41) and screw extruder omnidirectional distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200688459U CN201451288U (en) | 2009-03-13 | 2009-03-13 | Screw-type extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200688459U CN201451288U (en) | 2009-03-13 | 2009-03-13 | Screw-type extruder |
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| Publication Number | Publication Date |
|---|---|
| CN201451288U true CN201451288U (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200688459U Expired - Fee Related CN201451288U (en) | 2009-03-13 | 2009-03-13 | Screw-type extruder |
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| CN (1) | CN201451288U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102845821A (en) * | 2012-09-11 | 2013-01-02 | 华南理工大学 | Butter automatic extruder |
| CN104686608A (en) * | 2015-03-12 | 2015-06-10 | 苏州市吴中区木渎穗儿食品厂 | Dough sheet making machine |
-
2009
- 2009-03-13 CN CN2009200688459U patent/CN201451288U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102845821A (en) * | 2012-09-11 | 2013-01-02 | 华南理工大学 | Butter automatic extruder |
| CN104686608A (en) * | 2015-03-12 | 2015-06-10 | 苏州市吴中区木渎穗儿食品厂 | Dough sheet making machine |
| CN104686608B (en) * | 2015-03-12 | 2016-08-24 | 苏州市吴中区木渎穗儿食品厂 | A kind of dough sheet machine |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110313 |