CN115008718A - Extrusion molding system for rubber molded product with super-large cross section - Google Patents
Extrusion molding system for rubber molded product with super-large cross section Download PDFInfo
- Publication number
- CN115008718A CN115008718A CN202210555064.2A CN202210555064A CN115008718A CN 115008718 A CN115008718 A CN 115008718A CN 202210555064 A CN202210555064 A CN 202210555064A CN 115008718 A CN115008718 A CN 115008718A
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- China
- Prior art keywords
- machine head
- head cavity
- cold feed
- feed extruder
- cavity
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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
- B29C48/30—Extrusion nozzles or dies
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an extrusion molding system for rubber molded products with ultra-large sections, which comprises a pin type cold feed extruder, wherein the pin type cold feed extruder is connected with an automatic temperature controller, an electrical control system and a hydraulic system, the front end of the pin type cold feed extruder is sequentially connected with a first machine head cavity and a second machine head cavity, a splitter plate and a pressure controller are arranged inside the second machine head cavity, the splitter plate is arranged in the middle, the pressure controllers are respectively arranged on two sides of the splitter plate, and the outer side end of the second machine head cavity is connected with a mold through a mold fixing plate. Compared with the prior art, the invention has the advantages that: the manual operation defects of manual repeated filling of the die, manual opening of the extrusion cavity, mechanical locking of the extrusion cavity and the extruder and the like in the prior art can be overcome.
Description
Technical Field
The invention relates to the technical field of production and processing of large-scale wear-resistant strips of rubber, in particular to an extrusion molding system for rubber molded products with oversized cross sections.
Background
The large-size rubber wear-resistant strip is generally applied to rubber lining in mining machinery and crushing machinery, and the rubber lining is poor in use condition of the equipment and meets the requirements of wear resistance, corrosion resistance, convenience in replacement, long service life and the like.
The existing rubber product with the wear-resistant lining rubber still has the following defects in the extrusion molding process, such as:
1. the ratio of the effective sectional area of the screw to the sectional area of the product is too small, so that resistance cannot be built in a cavity of the extruder head, and the product has the phenomena of hollowness, air inclusion and the like.
2. At present, some large-size wear-resistant lining rubber products cannot be extruded and molded at one time by an extruder, and when a wear-resistant lining rubber molded product with a larger size section is required to be obtained, only pieces are taken out by an open mill or rubber strips with a smaller section are extruded by the extruder, and then the rubber strips are manually filled in a mold repeatedly and then are molded and vulcanized.
3. The air bubbles mixed with the inside of the wear-resistant lining rubber can not be thoroughly solved, the air in the multilayer rubber can not be discharged when the mold is manually filled, and the production efficiency is low. In order to obtain a large-section wear-resistant lining rubber molded product, the mold needs to be manually filled in multiple layers, so that workers can work at high temperature beside the mold, the labor intensity is high, the risk factor is large, and the damage degree of human health is improved. Because the raw rubber is manually filled into the die in multiple layers during die pressing, an interlayer or air holes are formed in the product after final vulcanization, so that the density of the final product is reduced, the use wear resistance is reduced, the service life is shortened, and the use cost is increased.
Disclosure of Invention
The invention aims to overcome the technical defects and provides an extrusion molding system for rubber molded products with ultra-large sections, which can overcome the defects of manual operations such as manual repeated filling of a mold, manual opening of an extrusion cavity, mechanical locking of the extrusion cavity and an extruder and the like in the prior art.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides an ultra-large cross-section rubber die pressing product extrusion moulding system, includes pin formula cold feed extruder, be connected with automatic temperature controller, electrical control system and hydraulic system on the pin formula cold feed extruder, pin formula cold feed extruder front end has connected gradually first aircraft nose die cavity and second aircraft nose die cavity, inside flow distribution plate and the pressure controller of being equipped with of second aircraft nose die cavity, the flow distribution plate sets up between two parties, the both sides of flow distribution plate are located to the pressure controller branch, second aircraft nose die cavity outside end is connected with the mould through the mould fixed plate.
Further, the second machine head cavity is connected with a pin type cold feed extruder mechanical bolt.
Furthermore, the first machine head cavity and the second machine head cavity are opened and closed through connection of a locking oil cylinder and an opening and closing oil cylinder and are locked through matching of a connecting hoop.
Furthermore, the hydraulic system is connected with the locking oil cylinder and the opening and closing oil cylinder.
Compared with the prior art, the invention has the advantages that:
the defects in the extrusion or open mill sheet-out forming process of the oversized products in the production process of the wear-resistant lining rubber are overcome, such as: the pressure in the die cavity is increased during extrusion, the die cavity of the extruder head is specially designed, the rubber product with the ultra-large specification required is extruded and molded at one time, and the phenomena of hollowness, air inclusion and the like of the artificial multilayer filling die product are avoided. Meanwhile, the labor intensity and the safety risk of workers are reduced, the production efficiency is improved, a very high-compactness product is obtained, the wear resistance of a molded product is improved, and the service life of the molded product is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of an extrusion molding system for a rubber molded product with an oversized cross section.
FIG. 2 is a schematic structural diagram of a second extrusion molding system for rubber molded products with oversized cross sections.
As shown in the figure: 1. the pin type cold feed extruder comprises a pin type cold feed extruder body, 2, a connecting clamp, 3, a locking oil cylinder, 4, an opening and closing oil cylinder, 5, a first machine head cavity, 6, a second machine head cavity, 7, a flow distribution plate, 8, a pressure controller, 9, a mold fixing plate, 10, a mold, 11, an automatic temperature controller, 12, an electrical control system, 13 and a hydraulic system.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, an extrusion molding system for rubber molded products with ultra-large cross sections comprises a pin type cold feed extruder 1, wherein an automatic temperature controller 11, an electrical control system 12 and a hydraulic system 13 are connected to the pin type cold feed extruder 1, a first machine head cavity 5 and a second machine head cavity 6 are sequentially connected to the front end of the pin type cold feed extruder 1, the second machine head cavity 6 is in mechanical bolt connection with the pin type cold feed extruder 1, the first machine head cavity 5 and the second machine head cavity 6 are connected and opened and closed through a locking oil cylinder 3 and an opening and closing oil cylinder 4, are locked by a connecting hoop 2 in a matching manner, are pulled back through the locking oil cylinder 3 and are locked by clockwise rotation of the connecting hoop 2, the hydraulic system 13 is connected and controls the locking oil cylinder 3 and the opening and closing oil cylinder 4, a splitter plate 7 and a pressure controller 8 are arranged inside the second machine head cavity 6, the splitter plate 7 is arranged in the middle, the pressure controllers 8 are respectively arranged on two sides of the flow distribution plate 7, the outer side end of the second machine head cavity 6 is connected with a mold 10 through a mold fixing plate 9, when a screw of the pin type cold feed extruder 1 rotates, rubber in a machine barrel of the pin type cold feed extruder is pushed to a position between the first machine head cavity 5 and the second machine head cavity 6, the rubber is stirred, torn, combined, radiated and compressed again in the machine head cavity through the flow distribution plate 7 and the pressure controllers 8, and is pushed to an outlet of the second machine head cavity 6 and finally shaped and extruded through the mold 10.
When the invention is implemented specifically, the automatic temperature controller 11 is started firstly, and the pin type cold feed extruder 1, the first machine head cavity 5 and the second machine head cavity 6 are preheated according to the process requirements. After the temperature reaches the process set value, the hydraulic system 13 is started, the opening and closing oil cylinder 4 is pushed out, the first machine head cavity 5 is closed, the locking oil cylinder 3 is pulled back, and the connecting clamp 2 rotates clockwise to lock the second machine head cavity 6 and the first machine head cavity 5. The hydraulic system 13 is shut down, and the electrical control system 12 is started to carry out normal production.
When production stops, close electrical control system 12, start hydraulic system 13, locking hydro-cylinder 3 releases, and connection clamp 2 anticlockwise rotation, the hydro-cylinder 4 that opens and shuts pulls back, and first aircraft nose die cavity 5 horizontal rotation opens, makes first aircraft nose die cavity 5, second aircraft nose die cavity 6 thoroughly separate, clears up remaining rubber in first aircraft nose die cavity 5 and the second aircraft nose die cavity 6.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides an ultra-large cross-section rubber die pressing product extrusion moulding system, includes pin formula cold feed extruder (1), be connected with automatic temperature controller (11), electrical control system (12) and hydraulic system (13) on pin formula cold feed extruder (1), its characterized in that: the pin type cold feed extruder is characterized in that the front end of the pin type cold feed extruder (1) is sequentially connected with a first machine head cavity (5) and a second machine head cavity (6), a flow distribution plate (7) and a pressure controller (8) are arranged inside the second machine head cavity (6), the flow distribution plate (7) is arranged in the middle, the pressure controller (8) is arranged on two sides of the flow distribution plate (7), and the outer side end of the second machine head cavity (6) is connected with a mold (10) through a mold fixing plate (9).
2. The extrusion molding system of the rubber molded product with the ultra-large section as claimed in claim 1, wherein: and the second machine head cavity (6) is in mechanical bolt connection with the pin type cold feed extruder (1).
3. The extrusion molding system of the rubber molded product with the ultra-large section as claimed in claim 1, wherein: the first machine head cavity (5) and the second machine head cavity (6) are connected and opened and closed through the locking oil cylinder (3) and the opening and closing oil cylinder (4) and are locked by the matching connection clamp (2).
4. The extrusion molding system of the rubber molded product with the ultra-large section as claimed in claim 3, wherein: and the hydraulic system (13) is connected with the locking oil cylinder (3) and the opening and closing oil cylinder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210555064.2A CN115008718A (en) | 2022-05-19 | 2022-05-19 | Extrusion molding system for rubber molded product with super-large cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210555064.2A CN115008718A (en) | 2022-05-19 | 2022-05-19 | Extrusion molding system for rubber molded product with super-large cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115008718A true CN115008718A (en) | 2022-09-06 |
Family
ID=83069166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210555064.2A Pending CN115008718A (en) | 2022-05-19 | 2022-05-19 | Extrusion molding system for rubber molded product with super-large cross section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115008718A (en) |
-
2022
- 2022-05-19 CN CN202210555064.2A patent/CN115008718A/en active Pending
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