CN105365195A - Extruding mechanism used for rubber - Google Patents
Extruding mechanism used for rubber Download PDFInfo
- Publication number
- CN105365195A CN105365195A CN201510824793.3A CN201510824793A CN105365195A CN 105365195 A CN105365195 A CN 105365195A CN 201510824793 A CN201510824793 A CN 201510824793A CN 105365195 A CN105365195 A CN 105365195A
- Authority
- CN
- China
- Prior art keywords
- extruding
- rubber
- taper hole
- hole section
- cylinder
- 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.)
- Pending
Links
Classifications
-
- 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
- B29C48/68—Barrels or cylinders
- B29C48/681—Barrels or cylinders for single screws
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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
- B29C48/395—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
- B29C48/68—Barrels or cylinders
- B29C48/6803—Materials, coating or lining therefor
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/834—Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an extruding mechanism used for rubber. The extruding mechanism used for the rubber comprises an extruding cylinder, a rotating shaft, a material feeding spiral and a power source driving the rotating shaft to rotate. The material feeding spiral is connected to the rotating shaft. An extruding cavity is formed in the extruding cylinder. The rotating shaft is located in the extruding cavity. A material feeding hopper communicated with the extruding cavity is arranged on the extruding cylinder. The extruding cylinder is further provided with a taper hole section communicated with the material discharging side of the extruding cavity. The taper size of a taper hole is 1:4-6, and the diameter of the taper hole section is decreased gradually in the extruding direction. According to the extruding mechanism used for the rubber, the extruding pressure of the newly-extruded rubber from the extruding cylinder can be sufficient under the conditions of the frequent shut-down operations and the restarting operations of the extruding mechanism, and thus the extruded rubber meets the requirements.
Description
Technical field
The invention belongs to the shaping of plastics or connection area, be specifically related to a kind of extrusion mechanism for rubber.
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, is 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 extrusion mechanism for rubber, 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:
For the extrusion mechanism of rubber, comprise the power source extruded cylinder, rotating shaft, feeding screw and drive shaft and rotate, described feeding screw is connected in rotating shaft, described extruding in cylinder is provided with extruding cavity, and described rotating shaft is positioned at extruding cavity, described in extrude cylinder and be provided with the feed hopper be communicated with extruding cavity, describedly extrude taper hole section cylinder being also provided with and being communicated with extruding cavity discharging side, the tapering size of taper hole is 1:4-6, and along extruding direction, the diameter of taper hole section reduces gradually.
The principle of this programme: when specifically using, start power source, power source drives feeding screw to rotate, then rubber raw materials to be extruded adds from feed hopper, rubber raw materials falls into extrudes cylinder, and feeding screw is sent being arranged in the rubber raw materials extruding cylinder, and rubber raw materials is when entering taper hole section from extruding cavity, rubber raw materials is first extruded in taper hole section, then sends and finally extrudes.
The advantage of this programme is: in this programme, even frequent start-stop extrusion mechanism, the extrusion mechanism of firm startup is in the process extruded by rubber raw materials, can be adjusted in taper hole section, the pressure of rubber raw materials is reached and extrudes requirement, enough, the rubber extruded meets the requirements the last rubber extruding pressure extruded from extrusion mechanism.
Prioritization scheme 1, to the further optimization of base case, described taper hole section is provided with the cooling chamber of ring-type, and taper hole section is provided with the inlet and liquid outlet that are communicated with cooling chamber respectively, and described inlet is communicated with external refrigeration liquid by coolant pipe.Rubber raw materials is extruded in taper hole section, and in rubber raw materials and taper hole section, wall friction can produce more heat, if thermal accumlation, then can make the component sex change in rubber, in cooling chamber, pass into cooling fluid by inlet, so just can absorb heat, thus ensure that the rubber product extruded is qualified.
Prioritization scheme 2, to the further optimization of base case, the tapering size of described taper hole section is 1:5.Inventor in use finds, when the tapering size of the taper hole of taper hole section is 1:5, the quality just starting the rubber that extrusion mechanism is extruded is good.
Prioritization scheme 3, to the further optimization of base case, any one of prioritization scheme 1,2, the inwall of described taper hole section is provided with heat-resisting alloy layer.Taper hole section, by larger extruding and friction, so taper hole section can produce more heat, arrange heat-resisting alloy layer not only heat-resisting, and intensity is higher, so can reduce the deformation of taper hole section.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for the extrusion mechanism embodiment 1 of rubber;
Fig. 2 is the structural representation of the present invention for the extrusion mechanism embodiment 2 of rubber.
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, feeding screw 30, hydraulic motor 40, feed hopper 50, taper hole section 60, heat-resisting alloy layer 61, cooling chamber 70.
Embodiment 1
Embodiment is substantially as shown in Figure 1: a kind of extrusion mechanism for rubber, comprise and extrude cylinder 10, rotating shaft 20, the power source that feeding screw 30 and drive shaft 20 are rotated, the present embodiment power source used is hydraulic motor 40, feeding screw 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, extrude the taper hole section 60 cylinder 10 being also provided with and being communicated with extruding cavity discharging side, the tapering size of taper hole is 1:5, along extruding direction, the diameter of taper hole section 60 reduces gradually.
In the present embodiment, the inwall of taper hole section 60 is provided with heat-resisting alloy layer 61.Taper hole section 60, by larger extruding and friction, so taper hole section 60 can produce more heat, arrange heat-resisting alloy layer 61 not only heat-resisting, and intensity is higher, so can reduce the deformation of taper hole section 60.
Embodiment 2
As shown in Figure 2, be with the difference part of embodiment 1: in the present embodiment, taper hole section 60 is provided with the cooling chamber 70 of ring-type, and taper hole section 60 is provided with the inlet and liquid outlet that are communicated with cooling chamber 70 respectively, and inlet is communicated with external refrigeration liquid by coolant pipe.Rubber raw materials is extruded in taper hole section 60, in rubber raw materials and taper hole section 60, wall friction can produce more heat, if thermal accumlation, then can make the component sex change in rubber, in cooling chamber 70, cooling fluid is passed into by inlet, so just can absorb heat, thus ensure that the rubber product extruded is qualified.
Specific works principle:
Be specifically described for embodiment 1 below: as shown in Figure 1, during concrete use, primer fluid pressure motor 40, hydraulic motor 40 drives feeding screw 30 to rotate, and rubber raw materials then to be extruded adds from feed hopper 50, and rubber raw materials falls into extrudes cylinder 10, feeding screw 30 is sent being arranged in the rubber raw materials extruding cylinder 10, rubber raw materials is when entering taper hole section 60 from extruding cavity, rubber raw materials is first extruded in taper hole section 60, then sends and finally extrudes.In this programme, even frequent start-stop extrusion mechanism, the extrusion mechanism of firm startup is in the process extruded by rubber raw materials, can be adjusted in taper hole section 60, the pressure of rubber raw materials is reached and extrudes requirement, enough, the rubber extruded meets the requirements the last rubber extruding pressure extruded from extrusion mechanism.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, 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 (4)
1. for the extrusion mechanism of rubber, comprise the power source extruded cylinder, rotating shaft, feeding screw and drive shaft and rotate, described feeding screw is connected in rotating shaft, described in extrude in cylinder and be 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, described in extrude taper hole section cylinder being also provided with and being communicated with extruding cavity discharging side, the tapering size of taper hole is 1:4-6, along extruding direction, the diameter of taper hole section reduces gradually.
2. the extrusion mechanism for rubber according to claim 1, it is characterized in that, described taper hole section is provided with the cooling chamber of ring-type, and taper hole section is provided with the inlet and liquid outlet that are communicated with cooling chamber respectively, and described inlet is communicated with external refrigeration liquid by coolant pipe.
3. the extrusion mechanism for rubber according to claim 1, is characterized in that, the tapering size of the taper hole of described taper hole section is 1:5.
4. the extrusion mechanism for rubber according to any one of claim 1-3, is characterized in that, the inwall of described taper hole section is provided with heat-resisting alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510824793.3A CN105365195A (en) | 2015-11-24 | 2015-11-24 | Extruding mechanism used for rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510824793.3A CN105365195A (en) | 2015-11-24 | 2015-11-24 | Extruding mechanism used for rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105365195A true CN105365195A (en) | 2016-03-02 |
Family
ID=55368071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510824793.3A Pending CN105365195A (en) | 2015-11-24 | 2015-11-24 | Extruding mechanism used for rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105365195A (en) |
-
2015
- 2015-11-24 CN CN201510824793.3A patent/CN105365195A/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 |