CN105365197A - Extrusion device for processing rubber - Google Patents
Extrusion device for processing rubber Download PDFInfo
- Publication number
- CN105365197A CN105365197A CN201510841697.XA CN201510841697A CN105365197A CN 105365197 A CN105365197 A CN 105365197A CN 201510841697 A CN201510841697 A CN 201510841697A CN 105365197 A CN105365197 A CN 105365197A
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- CN
- China
- Prior art keywords
- cavity
- extrusion
- metal sheet
- memory metal
- extruding
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Classifications
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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
- B29C48/501—Extruder feed section
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an extrusion device for processing rubber. The extrusion device comprises an extrusion cylinder, a rotary shaft, an extrusion screw and a power source driving the rotary shaft to rotate, wherein the extrusion screw is connected to the rotary shaft; an extrusion cavity is formed in the extrusion cylinder; the rotary shaft is located in the extrusion cavity; a feeding hopper communicated with the extrusion cavity is arranged on the extrusion cylinder; the extrusion device is also provided with a transition section with a transition cavity; the transition cavity is communicated with one discharging side of the extrusion cavity; a memory metal sheet and a resetting part used for opening and closing the transition cavity are arranged in the transition cavity; the extreme pressure of the memory metal sheet stressed to open the transition cavity is 120-150Pa; one end of the resetting part is connected with the inner wall of the transition cavity, and the other end of the resetting part is connected with the memory metal sheet. Through the extrusion mechanism, the extrusion pressure for extruding the rubber from the extrusion cylinder is enough under the condition that the extrusion mechanism is frequently stopped and started again; the extruded rubber meets the requirement.
Description
Technical field
The invention belongs to the shaping of plastics or connection area, be specifically related to a kind of rubber processing extrusion device.
Background technology
Early stage rubber is the latex taking from the plant such as rubber tree, Russian dandelion, the material with elasticity, insulating properties, waterproof and air made after processing.Elastomeric macromolecular compound.Be divided into natural rubber and synthetic rubber two kinds.Natural rubber from the plant such as rubber tree, Russian dandelion, extracts colloid aft-loaded airfoil make; Synthetic rubber is then obtained through polymerisation by various monomer.
Rubber industry is one of important foundation industry of national economy.It is not only the light industry rubber product such as daily, medical that people provide daily life indispensable, and provides various rubber production equipment or rubber components to the heavy industry such as digging, traffic, building, machinery, electronics and new industry.Visible, the product category of rubber industry is various, and backward industry is very wide.
The processing of rubber generally include plasticate, mixing, roll or extrude, the basic working procedure such as shaping and sulfuration, each operation has different requirements for goods, coordinates respectively with some auxiliary operations.In order to add in rubber by various required compounding ingredient, first rubber needs to improve its plasticity through over-mastication; Then by mixing, carbon black and various rubber chemicals and rubber are uniformly mixed into sizing material; Sizing material makes definite shape blank through extrusion; Make it combine with the textile material (or and metal material) through rolling kiss-coating or gluing again and be shaped to semi-finished product; Eventually pass sulfuration and again the semi-finished product with plasticity are made elastomeric final products.
Rubber extruding operation is normally extruded in extrusion mechanism, existing extrusion mechanism generally includes and extrudes cylinder, extrudes spiral, extrude in cylinder and be provided with cylindrical cavity, extrude spiral and be positioned at cylindrical cavity, but in the process extruded, particularly when the running of rubber extruding mechanism stops continually and starts, from extruding, the rubber mass just extruded in cylinder is few, extrusion pressure is little, so the rubber usually extruded is undesirable.
Summary of the invention
The object of the present invention is to provide a kind of rubber processing extrusion device, when this extrusion mechanism can make to stop continually and start, enough from the extrusion pressure extruding the rubber just extruded in cylinder, the rubber extruded meets the requirements.
For achieving the above object, base case of the present invention is as follows:
Rubber processing extrusion device, comprise and extrude cylinder, rotating shaft, extrude the power source of spiral and drive shaft rotation, described spiral of extruding is connected in rotating shaft, described extruding in cylinder is provided with extruding cavity, described rotating shaft is positioned at extruding cavity, described cylinder of extruding is provided with the feed hopper be communicated with extruding cavity, also be provided with the changeover portion of band adapter cavity, described adapter cavity is communicated with extruding cavity discharging side, the memory metal sheet for opening and closing adapter cavity and return unit is provided with in described adapter cavity, the stressed limiting pressure opening adapter cavity of described memory metal sheet is 120-150Pa, described return unit one end is connected with adapter cavity inwall, the other end is connected with memory metal sheet.
The principle of this programme: when specifically using, starts power source, and power source drives extrusion spiral to rotate, then rubber raw materials to be extruded adds from feed hopper, rubber raw materials falls into extrudes cylinder, and extrusion spiral is sent being arranged in the rubber raw materials extruding cylinder, and enters in the adapter cavity of changeover portion.When just starting, memory metal sheet is in the state of closing adapter cavity, when the pressure that rubber raw materials acts on memory metal sheet reaches the limiting pressure of memory metal sheet, memory metal sheet opens adapter cavity immediately, and the rubber raw materials being now positioned at adapter cavity is extruded.
The advantage of this programme is: in this programme, be provided with changeover portion, and memory metal sheet and return unit is provided with in the adapter cavity of changeover portion, when the pressure that memory metal sheet is subject to is greater than the limiting pressure of himself, open adapter cavity immediately, enough from extruding the extrusion pressure of rubber after changeover portion just extruded in cylinder like this, ensure that the rubber extruded meets the requirements.
Prioritization scheme 1, to the further optimization of base case, the stressed limiting pressure opening adapter cavity of described memory metal sheet is 140Pa.Find by using, the limiting pressure of memory metal sheet is when above-mentioned value, and the quality of the rubber squeezed out is better.
Prioritization scheme 2, to the further optimization of base case, described return unit is stage clip.The coefficient of elasticity of stage clip is high, and long service life.
Prioritization scheme 3, to the further optimization of base case, any one of prioritization scheme 1,2, described memory metal sheet surface is provided with plastic layer.The first, in use, the rubber raw materials be extruded and memory metal sector-meeting occur to extrude and rub, and the plastic layer of setting can play the effect of protection memory metal sheet; The second, plastic layer energy assisted memory sheet metal resets.
Prioritization scheme 4, to the further optimization of prioritization scheme 3, described memory metal sheet is spring steel plate.When spring steel plate is as memory metal sheet, is being subject to the extruding of rubber raw materials and after reaching its limiting pressure, adapter cavity can be being opened more delicately.
Accompanying drawing explanation
Fig. 1 is the structural representation that in rubber processing extrusion device embodiment of the present invention, spring steel plate closes adapter cavity state;
Fig. 2 is the structural representation that in rubber processing extrusion device embodiment of the present invention, spring steel plate opens transition cavity-like state.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: extrude cylinder 10, rotating shaft 20, extrude spiral 30, servomotor 40, feed hopper 50, changeover portion 60, adapter cavity 61, spring steel plate 70, stage clip 80, plastic layer 90.
Embodiment is substantially as shown in Figure 1: a kind of rubber processing extrusion device, comprise and extrude cylinder 10, rotating shaft 20, extrude the power source of spiral 30 and drive shaft 20 rotation, the power source of the present embodiment is servomotor 40, extruding spiral 30 is connected in rotating shaft 20, extrude in cylinder 10 and be provided with extruding cavity, rotating shaft 20 is positioned at extruding cavity, extrude cylinder 10 and be provided with the feed hopper 50 be communicated with extruding cavity, the extrusion device of the present embodiment also comprises the changeover portion 60 of band adapter cavity 61, adapter cavity 61 is communicated with extruding cavity discharging side, the memory metal sheet for opening and closing adapter cavity 61 and return unit is provided with in adapter cavity 61, the stressed limiting pressure opening adapter cavity 61 of memory metal sheet is 140Pa, return unit one end is connected with adapter cavity 61 inwall, the other end is connected with memory metal sheet.The present embodiment return unit used is stage clip 80.The coefficient of elasticity of stage clip 80 is high, and long service life.
In the present embodiment, memory metal sheet surface is provided with plastic layer 90.The first, in use, the rubber raw materials be extruded and memory metal sector-meeting occur to extrude and rub, and the plastic layer 90 of setting can play the effect of protection memory metal sheet; The second, plastic layer 90 can reset by assisted memory sheet metal.
In the present embodiment, memory metal sheet is spring steel plate 70.When spring steel plate 70 is as memory metal sheet, is being subject to the extruding of rubber raw materials and after reaching its limiting pressure, adapter cavity 61 can be being opened more delicately.
Specific works principle:
As shown in Figure 1, during concrete use, start servomotor 40, servomotor 40 drives extrusion spiral to rotate, then rubber raw materials to be extruded adds from feed hopper 50, rubber raw materials falls into extrudes cylinder 10, and extrusion spiral is sent being arranged in the rubber raw materials extruding cylinder 10, and enters in the adapter cavity 61 of changeover portion 60.When just starting, spring steel plate 70 is in the state of closing adapter cavity 61, when the rubber raw materials pressure acted on spring steel plate 70 reaches the limiting pressure of spring steel plate 70, spring steel plate 70 bends immediately, thus open adapter cavity 61, the rubber raw materials being now positioned at adapter cavity 61 is extruded, and after spring steel plate 70 bends, stage clip 80 is compressed.After extrusion device is shut down, under the reset response of stage clip 80, spring steel plate 70 resets, and is again closed by adapter cavity 61.In this programme, be provided with changeover portion 60, and spring steel plate 70 and stage clip 80 is provided with in the adapter cavity 61 of changeover portion 60, when the pressure that spring steel plate 70 is subject to is greater than the limiting pressure of himself, open adapter cavity 61 immediately, enough from extruding the extrusion pressure of rubber after changeover portion 60 just extruded in cylinder 10 like this, ensure that the rubber extruded meets the requirements.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (5)
1. rubber processing extrusion device, comprise and extrude cylinder, rotating shaft, extrude the power source of spiral and drive shaft rotation, described spiral of extruding is connected in rotating shaft, described extruding in cylinder is provided with extruding cavity, described rotating shaft is positioned at extruding cavity, described cylinder of extruding is provided with the feed hopper be communicated with extruding cavity, it is characterized in that, also be provided with the changeover portion of band adapter cavity, described adapter cavity is communicated with extruding cavity discharging side, the memory metal sheet for opening and closing adapter cavity and return unit is provided with in described adapter cavity, the stressed limiting pressure opening adapter cavity of described memory metal sheet is 120-150Pa, described return unit one end is connected with adapter cavity inwall, the other end is connected with memory metal sheet.
2. rubber processing extrusion device according to claim 1, is characterized in that, the stressed limiting pressure opening adapter cavity of described memory metal sheet is 140Pa.
3. rubber processing extrusion device according to claim 1, is characterized in that, described return unit is stage clip.
4. the rubber processing extrusion device according to any one of claim 1-3, is characterized in that, described memory metal sheet surface is provided with plastic layer.
5. rubber processing extrusion device according to claim 4, is characterized in that, described memory metal sheet is spring steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841697.XA CN105365197A (en) | 2015-11-28 | 2015-11-28 | Extrusion device for processing rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841697.XA CN105365197A (en) | 2015-11-28 | 2015-11-28 | Extrusion device for processing rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105365197A true CN105365197A (en) | 2016-03-02 |
Family
ID=55368073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510841697.XA Pending CN105365197A (en) | 2015-11-28 | 2015-11-28 | Extrusion device for processing rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105365197A (en) |
-
2015
- 2015-11-28 CN CN201510841697.XA patent/CN105365197A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160302 |