CN202911124U - Single-screw extrusion system - Google Patents

Single-screw extrusion system Download PDF

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Publication number
CN202911124U
CN202911124U CN2012205093723U CN201220509372U CN202911124U CN 202911124 U CN202911124 U CN 202911124U CN 2012205093723 U CN2012205093723 U CN 2012205093723U CN 201220509372 U CN201220509372 U CN 201220509372U CN 202911124 U CN202911124 U CN 202911124U
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CN
China
Prior art keywords
section
screw
barrel
screw rod
segment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012205093723U
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Chinese (zh)
Inventor
刘立功
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Individual
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Individual
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Priority to CN2012205093723U priority Critical patent/CN202911124U/en
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Publication of CN202911124U publication Critical patent/CN202911124U/en
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Expired - Fee Related legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/585—Screws provided with gears interacting with the flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
    • B29C48/525—Conical screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The utility model provides a novel single-screw extrusion system. The novel single-screw extrusion system comprises a screw, a screw cylinder and a hopper, wherein the screw is mounted in the screw cylinder; both the screw and the screw cylinder are three-segment; the first segment of the screw is divided into a homogenization segment, a compression segment and a feed supply segment; the texture density of the screw is gradually reduced from the front end to the rear end; the second segment is a transition segment, both the size and the threads of the cross section of the front end of the second segment are matched with those of the cross section of the rear end of the first segment of the screw, and the cross section of the screw is gradually enlarged from the front end to the rear end; the third segment is a feeding segment, and the size and the threads of the cross section of the front end of the second segment are matched with those of the cross section of the rear end of the second segment of the screw; a discharge opening is formed at the front end of the screw cylinder along the horizontal line, and the external shape and the internal hollow shape of the screw cylinder are matched with the integral shape of the screw; and the hopper is mounted at the top of the outside of the screw cylinder. On the traditional foundation, the internal diameter of the screw cylinder is greatly increased, both the depth and the width of the textures of the screw are increased, suspension of loose raw materials is avoided and the working efficiency and the safety are improved.

Description

List screw extruding system
Technical field
The utility model relates to the plastic grain processing technique field, particularly a kind of single screw extruding system.
Background technology
Single screw extrusion machine is as plasticizing granulation machinery or processing and forming machinery all occupies critical role, and in recent years, single screw extrusion machine had a great development.The outstanding feature of single screw extrusion machine development is its vital part---the development of screw rod.In recent years, people have carried out a large amount of theories and experimental study to screw rod, and existing nearly hundred kinds of screw rods common are divergence type, shearing-type, barrier type, bypass type and wavy type etc. so far.Develop from single screw rod, although single screw extrusion machine is comparatively perfect in recent years, along with macromolecular material and plastic products constantly develop, technical requirement is also more and more higher.
At present, general screw extruder is only applicable to the processing than the large apparent density raw material, such as pellet, powder or broken material, but very little for apparent density, the sheet or the film-form crushed material that are fluffy state are generally inapplicable, not only production efficiency is extremely low to add man-hour, and consume electric power is high, and operation field is difficult for keeping clean.
The puffy sheet of low bulk density or film-form particle are when the operations such as extruding pelletization, extruding pipe material (comprising pipe fitting), because its low bulk density and be puffy, blanking is very difficult.Traditional extruder not only needs artificial constantly intervention operation when operation, produces certain danger, and can produce the blanking difficulty, and moisture vapor is difficult for discharging, easily makes somebody a mere figurehead, pressure is inadequate, plastifies the problems such as bad, output and inefficiency.
The utility model content
The substantive defect and the problem that reach greatly inefficiency for puffy sheet or the film intractability of low bulk density in the prior art, the purpose of the utility model embodiment provides the better a kind of single screw extruding of a kind of security system, increase the length of blanking section, deepen blanking section spiral groove depth and width.
In order to achieve the above object, the utility model embodiment provides following technical scheme:
A kind of single screw extruding system comprises screw rod, barrel and hopper, it is characterized in that, barrel inside is equipped with screw rod, screw rod and barrel all are syllogic, and the screw rod first paragraph is divided into homogenize section, compression section and feeding section, and screw rod lines density is loose gradually to the rear end from front end; Second segment is transition, and the front end cross section size of screw rod all matches with screw thread with the rear end cross section of first paragraph screw rod is big or small with screw thread, and screw rod cross section from front to back becomes greatly gradually, and screw thread is broadened gradually by narrow, is deepened gradually by shallow; The 3rd section is the feeding section, and front end cross section size all matches with screw thread with the rear end cross section of second segment screw rod is big or small with screw thread; Barrel is discharging opening along the horizontal line front end, barrel outer shape and inner hollow out shape all are complementary with the screw rod global shape, be that first paragraph is straight-tube shape, the vertical section is rectangle, the second segment barrel is done the significant expansion of corresponding internal diameter with the second segment screw rod, the barrel vertical section is trapezoidal shape, the cross section of barrel becomes large gradually from front to back, the cross section of the 3rd section barrel and the 3rd section screw rod adapts, the vertical section is that height is greater than the rectangle of first paragraph barrel vertical section height, hopper is installed in the barrel outer tip end, and is vertical with barrel, is the 3rd section screw rod under the hopper.
Preferred as technique scheme, described barrel outer shape replaces with the barrel outer shape and is straight-tube shape by being complementary with the screw rod global shape.
Being detachable between preferred as technique scheme, the first paragraph of described barrel and second segment is connected.
Preferred as technique scheme, described screw rod first paragraph is two rank exhaust screws.
Preferred as technique scheme, described barrel is outside, be provided with steam vent directly over the exhaust section of two rank exhaust screw.
A kind of single screw extruding system that the utility model embodiment provides, be provided with transition and feeding section, solved well the series of problems that above-mentioned traditional extruder faces when the processing fluffy sheet of low bulk density or film-form raw material, screw thread has increased the degree of depth and width, make extruder present the saturation type feeding, the built on stilts probability of raw material also reduces greatly, has improved operating efficiency and security.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the cross-sectional view of the Novel extrusion machine of the utility model embodiment 1.
Fig. 2 is the cross-sectional view of the Novel extrusion machine of the utility model embodiment 2.
Fig. 3 is the cross-sectional view of the Novel extrusion machine of the utility model embodiment 3.
Fig. 4 is the cross-sectional view that the utility model embodiment 4 is equipped with the Novel extrusion machine of exhaust outlet.
The specific embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Shown in Fig. 1-2, a kind of single screw extruding system, comprise screw rod, barrel 2 and hopper 3, it is characterized in that, barrel inside is equipped with screw rod, screw rod and barrel all are syllogic, and screw rod first paragraph 11 is divided into homogenize section 101, compression section 102 and feeding section 103, and screw rod lines density is loose gradually to the rear end from front end; Second segment 12 is transition, and the front end cross section size of screw rod all matches with screw thread with the rear end cross section of first paragraph screw rod is big or small with screw thread, and screw rod cross section from front to back becomes greatly gradually, and screw thread is broadened gradually by narrow, is deepened gradually by shallow; The 3rd section 13 is the feeding section, and front end cross section size all matches with screw thread with the rear end cross section of second segment screw rod is big or small with screw thread; Barrel is discharging opening along the horizontal line front end, barrel 2 outer shape and inner hollow out shape all are complementary with the screw rod global shape, be that first paragraph is straight-tube shape, the vertical section is rectangle, the second segment barrel is done the significant expansion of corresponding internal diameter with second segment screw rod 12, the barrel vertical section is trapezoidal shape, the cross section of barrel becomes large gradually from front to back, the cross section of the 3rd section barrel and the 3rd section screw rod 13 adapts, the vertical section is that height is greater than the rectangle of first paragraph barrel vertical section height, hopper 3 is installed in barrel 2 outer tip end, and is vertical with barrel 2, is the 3rd section screw rod 13 under the hopper 3.
As shown in Figure 1, preferred as technique scheme, described barrel 2 outer shape replace with barrel 2 outer shape and are straight-tube shape by being complementary with the screw rod global shape.
As shown in Figure 3, preferred as technique scheme is detachable between the first paragraph of described barrel 2 and the second segment and is connected.
As shown in Figure 4, preferred as technique scheme, described screw rod first paragraph 11 is two rank exhaust screws, be provided with exhaust section 14 and second-order screw rod 15, be detachable between described exhaust section 14 and the screw rod first paragraph 11 and be connected, screw thread is tight, second-order screw rod 15 is positioned at exhaust section 14 front ends, the structure of second-order screw rod 15 is identical with screw rod first paragraph 11 structures, namely is divided into homogenize section 104, compression section 105 and feeding section 106, and screw rod lines density is loose gradually to the rear end from front end.
As shown in Figure 4, preferred as technique scheme is provided with steam vent directly over the exhaust section 14 of described barrel 2 outsides, two rank exhaust screw.
During work, a kind of single screw extruding of the utility model system is contained on traditional extruder equipment, from hopper 3 raw material is poured into, start motor, raw material is from the 3rd section screw rod feeding section 13 setting in motions, because screw thread is the gradual change shape to homogenize section 101 transition of first paragraph screw rod 11, barrel 2 inner spaces also progressively dwindle, raw material tightens in barrel 2 gradually, before entering compression section 102, just obtain certain compression, and be attached on the screw rod, finally finish homogenize in the homogenize section 101 of first paragraph screw rod 11, discharge final products from the foremost discharging opening of barrel 2, in this process, the gases such as steam also can just progressively be got rid of before entering the high temperature fluxing zone, and implementation result is very good.
The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by described protection domain with claim.

Claims (5)

1. a single screw extruding system comprises screw rod, barrel and hopper, it is characterized in that, barrel inside is equipped with screw rod, screw rod and barrel all are syllogic, and the screw rod first paragraph is divided into homogenize section, compression section and feeding section, and screw rod lines density is loose gradually to the rear end from front end; Second segment is transition, and the front end cross section size of screw rod all matches with screw thread with the rear end cross section of first paragraph screw rod is big or small with screw thread, and screw rod cross section from front to back becomes greatly gradually, and screw thread is broadened gradually by narrow, is deepened gradually by shallow; The 3rd section is the feeding section, and front end cross section size all matches with screw thread with the rear end cross section of second segment screw rod is big or small with screw thread; Barrel is discharging opening along the horizontal line front end, barrel outer shape and inner hollow out shape all are complementary with the screw rod global shape, be that first paragraph is straight-tube shape, the vertical section is rectangle, the second segment barrel is done the significant expansion of corresponding internal diameter with the second segment screw rod, the barrel vertical section is trapezoidal shape, the cross section of barrel becomes large gradually from front to back, the cross section of the 3rd section barrel and the 3rd section screw rod adapts, the vertical section is that height is greater than the rectangle of first paragraph barrel vertical section height, hopper is installed in the barrel outer tip end, and is vertical with barrel, is the 3rd section screw rod under the hopper.
2. a kind of single screw extruding according to claim 1 system is characterized in that, described barrel outer shape replaces with the barrel outer shape and is straight-tube shape by being complementary with the screw rod global shape.
3. a kind of single screw extruding according to claim 1 system is characterized in that, is detachable between the first paragraph of described barrel and the second segment and is connected.
4. a kind of single screw extruding according to claim 1 system is characterized in that described screw rod first paragraph is two rank exhaust screws.
5. a kind of single screw extruding according to claim 4 system is characterized in that, described barrel is outside, be provided with steam vent directly over the exhaust section of two rank exhaust screw.
CN2012205093723U 2012-09-29 2012-09-29 Single-screw extrusion system Expired - Fee Related CN202911124U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012205093723U CN202911124U (en) 2012-09-29 2012-09-29 Single-screw extrusion system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012205093723U CN202911124U (en) 2012-09-29 2012-09-29 Single-screw extrusion system

Publications (1)

Publication Number Publication Date
CN202911124U true CN202911124U (en) 2013-05-01

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Country Status (1)

Country Link
CN (1) CN202911124U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103496137A (en) * 2013-09-30 2014-01-08 昆山市华浦塑业有限公司 Gas assisted extrusion device with feed inlet stirring function
CN103935001A (en) * 2014-03-31 2014-07-23 苏州中塑再生机械有限公司 Plastic extruder
CN106555306A (en) * 2015-09-29 2017-04-05 青岛海尔智能技术研发有限公司 A kind of powder automatic release device and washing machine
CN109333906A (en) * 2018-06-28 2019-02-15 宁夏鼎盛阳光环保科技有限公司 Single screw extrusion equipment and single-screw extruder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103496137A (en) * 2013-09-30 2014-01-08 昆山市华浦塑业有限公司 Gas assisted extrusion device with feed inlet stirring function
CN103935001A (en) * 2014-03-31 2014-07-23 苏州中塑再生机械有限公司 Plastic extruder
CN106555306A (en) * 2015-09-29 2017-04-05 青岛海尔智能技术研发有限公司 A kind of powder automatic release device and washing machine
CN106555306B (en) * 2015-09-29 2020-06-02 青岛海尔智能技术研发有限公司 Automatic powder feeding device and washing machine
CN109333906A (en) * 2018-06-28 2019-02-15 宁夏鼎盛阳光环保科技有限公司 Single screw extrusion equipment and single-screw extruder

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130501

Termination date: 20130929