CN113510917A - EVA plastic film extruder - Google Patents
EVA plastic film extruder Download PDFInfo
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- CN113510917A CN113510917A CN202110529838.XA CN202110529838A CN113510917A CN 113510917 A CN113510917 A CN 113510917A CN 202110529838 A CN202110529838 A CN 202110529838A CN 113510917 A CN113510917 A CN 113510917A
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- 239000002985 plastic film Substances 0.000 title claims abstract description 15
- 229920006255 plastic film Polymers 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 68
- 238000007789 sealing Methods 0.000 claims description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 34
- 229910021389 graphene Inorganic materials 0.000 claims description 34
- 239000000110 cooling liquid Substances 0.000 claims description 32
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 19
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 19
- 241001330002 Bambuseae Species 0.000 claims description 19
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 19
- 239000011425 bamboo Substances 0.000 claims description 19
- 229910002804 graphite Inorganic materials 0.000 claims description 19
- 239000010439 graphite Substances 0.000 claims description 19
- -1 graphite alkene Chemical class 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 14
- 210000001503 joint Anatomy 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000002826 coolant Substances 0.000 abstract description 30
- 239000004033 plastic Substances 0.000 abstract description 29
- 229920003023 plastic Polymers 0.000 abstract description 29
- 239000002245 particle Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 27
- 238000001125 extrusion Methods 0.000 description 17
- 239000007788 liquid Substances 0.000 description 13
- 230000008859 change Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 239000012778 molding material Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B29C48/78—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
- B29C48/832—Heating
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of plastic extruders, in particular to an EVA plastic film extruder which comprises a rack, wherein one end of the upper surface of the rack is fixedly provided with a transmission motor, and one end of the transmission motor is fixedly provided with a gear box; one end of the gear box is rotatably connected with a screw rod, and one end of the screw rod extends into the outer barrel; one end of the outer cylinder is fixedly provided with a head connector; the inner part of the outer barrel is fixedly provided with a charging barrel. The charging barrel provided by the invention has the advantages that the charging barrel is quickly heated, the energy waste is avoided, the heat conduction performance is improved, the quick cooling of the charging barrel is realized, and in comparison with a comparison patent, the problem that the heat of the charging barrel body needs to be indirectly conducted to plastic particles inside the charging barrel body through a heating cavity when the arranged cooling medium circulation channel is heated is avoided, the heat conduction performance of the charging barrel body is greatly reduced, the comparison patent is optimized, and the heating efficiency is further improved.
Description
Technical Field
The invention relates to the technical field of plastic extruders, in particular to an EVA plastic film extruder.
Background
In the plastic extrusion molding equipment, the plastic extruder is generally called a main machine, and a subsequent equipment plastic extrusion molding machine matched with the plastic extruder is called an auxiliary machine, after the development of the plastic extruder for more than 100 years, multiple machine types such as double screws, multiple screws and even no screws are derived from the original single screw, the plastic extruder (the main machine) can be matched with various plastic molding auxiliary machines such as pipes, films, rods, monofilaments, flat wires, baling belts, net extrusion, plates (sheets), profiles, pelleting, cable coating and the like to form various plastic extrusion molding production lines to produce various plastic products, so the plastic extrusion molding machine is one of the machines widely applied in the plastic processing industry no matter at present or in the future.
When the plastic extruder heats the plastic to be molten state, the charging barrel is just the heat-conducting component, and the charging barrel is heated, so that the plastic is indirectly heated, and the charging barrel is an important component of the plastic extruder.
Chinese patent discloses a plastics extruder graphite alkene feed cylinder, and patent application number is CN201921574818.9, a plastics extruder graphite alkene feed cylinder, including first feed cylinder body and second feed cylinder body, first feed cylinder body with the inside of second feed cylinder body is equipped with the cavity that is used for placing the screw rod, first feed cylinder body with the internal surface and the surface of second feed cylinder body are equipped with graphite alkene wearing layer, first feed cylinder body with there is a layer of graphite alkene powder bed between the internal surface and the surface of second feed cylinder body, graphite alkene powder bed is equipped with the coolant circulation passageway.
Although the above-mentioned comparison patent utilizes the graphene to have good thermal conductivity, so as to reduce the time required for heating the charging barrel to a set temperature and improve the thermal conductivity of the charging barrel, and at the same time, through arranging a plurality of cooling medium circulation channels in the graphene powder layer, compared with the prior art, the rapid cooling of the charging barrel is realized, in practical use, because of the arranged cooling medium circulation channels, when heating, no cooling liquid exists in the channels, which is equivalent to a cavity state, and at the moment, the heat needs to be indirectly conducted to the plastic particles in the charging barrel through the heating cavity, so that the thermal conductivity of the charging barrel is greatly reduced, and meanwhile, after the graphene wear-resistant layer arranged in the charging barrel is used for a long time, the inner surface is gradually worn due to the friction with the material, the diameter of the inner hole of the cylinder is gradually increased, and the clearance between the inner hole and the matching diameter of the screw rod of the extruder is also gradually increased, so that the leakage flow rate of the extruded material when the extruded material advances is increased, the melting effect of the material is reduced, and the quality of the finished product is reduced.
Therefore, an EVA plastic film extruder is provided.
Disclosure of Invention
The invention aims to provide an EVA plastic film extruder to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an EVA plastic film extruder comprises a rack, wherein a transmission motor is fixedly mounted at one end of the upper surface of the rack, and a gear box is fixedly mounted at one end of the transmission motor; one end of the gear box is rotatably connected with a screw rod, and one end of the screw rod extends into the outer barrel; one end of the outer cylinder is fixedly provided with a head connector; the upper end of the outer circular surface of the outer barrel is provided with a feed inlet in a penetrating way; a control platform is fixedly arranged on one side of the upper surface of the rack close to the gear box; a charging barrel is fixedly arranged in the outer barrel, the charging opening and the outer barrel are communicated with each other, a cooling module is arranged at one end in the rack, and two ends of the cooling module are fixedly connected with the charging barrel through pipelines respectively;
the charging barrel comprises a barrel body, a connecting barrel, a cooling liquid inlet, a cooling liquid temporary storage cavity, a flow channel butt joint port, a mounting groove, a connecting flange, a wear-resisting mechanism, a graphene heat-conducting barrel, a heating body placing groove, a cooling cavity, a cooling liquid outlet and a filling mechanism; both ends of the cylinder body are fixedly connected with connecting cylinders; one end of the connecting cylinder is fixedly connected with a connecting flange and is fixedly connected with the outer cylinder through the connecting flange; the outer circular surface of one of the connecting cylinders is provided with a cooling liquid inlet, and the outer circular surface of the other connecting cylinder is provided with a cooling liquid outlet; a cooling liquid temporary storage cavity is arranged in the connecting cylinder, and is communicated with the cooling liquid inlet and the cooling liquid outlet; mounting grooves are formed in the middle positions inside the connecting cylinder and the cylinder body in a penetrating mode; one end of the connecting cylinder is provided with four flow passage butt joints uniformly in an annular shape at a position close to the mounting groove; the outer circle surface of the cylinder body is annularly and uniformly provided with four heating element placing grooves; a graphene heat-conducting cylinder is fixedly installed at a position, close to the heating element placing groove, in the cylinder body; the interior of the graphene heat conduction cylinder is movably connected with a wear-resistant mechanism; the connecting position of the graphene heat conducting cylinder and the cylinder body is uniformly provided with four cooling cavities in an annular shape, and the cooling cavities and the heating element placing grooves are distributed in a staggered manner on a vertical section; a filling mechanism is fixedly installed in the position, corresponding to the cooling cavity, in the cylinder body and used for filling the cooling cavity during heating, so that the heating efficiency is improved;
the filling mechanism comprises a telescopic rod and a heat conduction sealing block; a telescopic rod is fixedly arranged in the position, corresponding to the cooling cavity, in the barrel; and one end of the telescopic rod is fixedly provided with a heat conduction sealing block.
Although the above-mentioned comparison patent utilizes the graphene to have good thermal conductivity, so as to reduce the time required for heating the charging barrel to a set temperature and improve the thermal conductivity of the charging barrel, and at the same time, through arranging a plurality of cooling medium circulation channels in the graphene powder layer, compared with the prior art, the rapid cooling of the charging barrel is realized, in practical use, because of the arranged cooling medium circulation channels, when in heating, no cooling liquid exists in the channels, which is equivalent to a cavity state, and at the moment, the heat needs to be indirectly conducted to the plastic particles inside the charging barrel through the heating cavity, so that the thermal conductivity of the charging barrel is greatly reduced, by arranging the novel charging barrel, when in use, the platform is controlled to control the telescopic rod to work, and the heat-conducting sealing block is pushed into the cooling cavity, the cooling cavity is filled, the heat conduction sealing block and the graphene heat conduction barrel form a heat conduction whole body at the moment, the heat conduction sealing block and the graphene heat conduction barrel are heated by a heating body in a heating body placing groove, the heat conduction sealing block is a component made of a heat conduction ceramic material, has better sealing effect while having heat conduction performance, heats plastic materials in the wear-resisting mechanism and is extruded from a neck mold, when the temperature exceeds extrusion molding temperature in the heating process, the materials are easily carbonized, the telescopic rod can be controlled to shrink at the moment, the heat conduction sealing block is driven to leave the cooling cavity, so that the cooling cavity is exposed among the heat conduction sealing block, the wear-resisting mechanism and the graphene heat conduction barrel, cooling liquid is pumped into a cooling liquid inlet through a pipeline by using a cooling module, enters the cooling cavity through a cooling liquid temporary storage cavity and a runner butt joint, and the whole barrel is cooled, the charging barrel provided by the invention has the advantages that the charging barrel is prevented from being carbonized due to overhigh temperature, the rapid cooling of the charging barrel is realized on the basis of realizing rapid heating of the charging barrel, avoiding energy waste and improving the heat conductivity, and compared with a comparison patent, the charging barrel avoids the problem that when a cooling medium circulation channel is arranged for heating, heat needs to be indirectly conducted to plastic particles inside the charging barrel through a heating cavity, the heat conductivity of the charging barrel body is greatly reduced, the comparison patent is optimized, and the heating efficiency is further improved.
Preferably, fixing grooves are embedded in two ends of the side surface of the heat conduction sealing block; the fixing groove is filled with heat-conducting glue, the sealing strip is tightly abutted against the barrel by utilizing the elasticity of the heat-conducting glue, and meanwhile, the heat-conducting effect is improved; and a sealing strip is arranged at one end of the heat-conducting glue.
The during operation, in the heating process, when the temperature surpassed the extrusion molding temperature, the shrink of control telescopic link, it leaves the cooling chamber to drive the heat conduction seal block, go into the cooling chamber with the coolant liquid pump, wholly cool down the feed cylinder, however, the heat conduction seal block is relatively poor with graphite alkene heat conduction section of thick bamboo hookup location's leakproofness, the coolant liquid easily takes place to reveal, influence the normal work of extruder, through setting up the fixed slot, the inside heat conduction glue that fills of fixed slot, utilize heat conduction glue to be the solid-state characteristic of elasticity below the degree centigrade, can support tightly sealing strip and barrel, and then avoid the relatively poor problem of leakproofness of heat conduction seal block and graphite alkene heat conduction section of thick bamboo hookup location, and the heat conduction effect is improved simultaneously.
Preferably, the end face of one end, connected with the wear-resistant mechanism, of the heat-conducting sealing block is designed in an arc shape, and the curvature radius of the end face is equal to the section circle radius of the wear-resistant mechanism.
The during operation, in the heating process, when the temperature surpassed the extrusion molding temperature, the shrink of control telescopic link, it leaves the cooling chamber to drive the heat conduction seal block, go into the cooling chamber with the coolant liquid, wholly cool down the feed cylinder, however, the heat conduction seal block is relatively poor with wear-resisting mechanism hookup location's leakproofness, the coolant liquid easily takes place to reveal, influence the normal work of extruder, be the arc design through the one end terminal surface of being connected heat conduction seal block and wear-resisting mechanism, and its curvature radius equals wear-resisting mechanism cross-section radius, make the heat conduction seal block more inseparabler with wear-resisting mechanism is more enough laminated, and then further improved the leakproofness in cooling chamber, the revealing of coolant liquid has been prevented.
Preferably, the wear-resisting mechanism comprises a wear-resisting cylinder, a flange plate, a wear-resisting layer and a flange mounting groove; the two ends of the wear-resistant cylinder are fixedly connected with flange plates, and are fixedly connected with flange mounting grooves formed in the connecting flanges through the flange plates; the inner surface of the wear-resistant cylinder is coated with a wear-resistant layer for improving the wear resistance of the wear-resistant cylinder.
During operation, the inside graphite alkene wearing layer that sets up of contrast special material barrel is after long-time use, because the friction with the material, make the internal surface wear gradually, barrel hole diameter increases gradually, also crescent with the cooperation diameter clearance of extruder screw rod, and then increased the discharge when being advanced by the extrusion molding material, make material melting effect descend, and then cause finished product quality to descend, through setting up wear-resisting mechanism, the internal surface coating wearing layer of wear-resisting section of thick bamboo, be used for improving wear-resisting section of thick bamboo wearability, prolong wear-resisting mechanism's life, when wear-resisting mechanism wears, can follow the flange mounting inslot of seting up on the flange and unscrew the ring flange, change wear-resisting section of thick bamboo, the discharge when having avoided being advanced by the extrusion molding material, material melting effect has been guaranteed, and then finished product quality has been guaranteed.
Preferably, four limiting pieces are uniformly arranged on the outer circular surface of the wear-resistant cylinder in an annular manner; four limiting grooves are formed in the inner circular surface of the graphene heat conducting cylinder corresponding to the middle positions of the heating body placing grooves; the wear-resisting section of thick bamboo is connected with graphite alkene heat-conducting tube joint through spacing piece, spacing groove.
During operation, wear-resisting mechanism is owing to need change, and then can't carry out fixed connection with black alkene heat-conducting tube, and then wear-resisting mechanism can deflect in black alkene heat-conducting tube is inside when using, causes extruder work unusual, is connected with graphite alkene heat-conducting tube joint through setting up spacing piece, spacing groove, carries on spacingly to wear-resisting mechanism, can prevent that wear-resisting mechanism from deflecting in black alkene heat-conducting tube is inside, has further guaranteed the extruder and has normally worked.
Preferably, a first installation mark area is sprayed on the edge of the outer circular surface of the flange plate corresponding to the position of one group of limiting sheets; the position that the outer disc edge of flange corresponds the spacing groove has the second installation mark district to the spraying for the quick alignment of spacing piece and spacing groove is realized to first installation mark district of cooperation, improves wear-resisting section of thick bamboo and changes efficiency.
When the wear-resisting mechanism is replaced, because the limiting piece and the limiting groove which are arranged outside the wear-resisting mechanism need to be aligned and installed, the replacement efficiency of the wear-resisting mechanism is reduced, the quick alignment of the limiting piece and the limiting groove is realized by arranging the first installation mark area and the second installation mark area, and the replacement efficiency of the wear-resisting cylinder is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. the charging barrel provided by the invention has the advantages that the charging barrel is quickly heated, the energy waste is avoided, the heat conduction performance is improved, the quick cooling of the charging barrel is realized, and in comparison with a comparison patent, the problem that the heat of the charging barrel body needs to be indirectly conducted to plastic particles inside the charging barrel body through a heating cavity when the arranged cooling medium circulation channel is heated is avoided, the heat conduction performance of the charging barrel body is greatly reduced, the comparison patent is optimized, and the heating efficiency is further improved.
2. According to the invention, the wear-resistant mechanism is arranged, and the inner surface of the wear-resistant cylinder is coated with the wear-resistant layer, so that the wear resistance of the wear-resistant cylinder is improved, the service life of the wear-resistant mechanism is prolonged, when the wear-resistant mechanism is worn, the flange plate can be unscrewed from the flange mounting groove formed in the connecting flange, the wear-resistant cylinder is replaced, the flow leakage of extruded materials during advancing is avoided, the material melting effect is ensured, and the quality of finished products is further ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front elevation partial cross-sectional structural view of the present invention;
FIG. 3 is a view of the cartridge configuration of the present invention;
FIG. 4 is a left side partial cross-sectional structural view of a cartridge of the present invention;
FIG. 5 is an enlarged structural view of the filling mechanism of the present invention;
FIG. 6 is a structural view of the wear mechanism of the present invention;
fig. 7 is a view showing a second mounting mark zone arrangement of the present invention.
In the figure: 1. a frame; 2. a drive motor; 3. a control platform; 4. a gear case; 5. a feed inlet; 6. a machine head connector; 7. a screw; 8. a charging barrel; 81. a barrel; 82. a connecting cylinder; 83. a coolant inlet; 84. a coolant temporary storage cavity; 85. a flow channel butt joint; 86. mounting grooves; 87. a connecting flange; 88. a wear resistant mechanism; 881. a wear-resistant cylinder; 882. a limiting sheet; 883. a flange plate; 884. a first mounting indicia area; 885. a wear layer; 886. a limiting groove; 887. a second mounting indicia area; 888. a flange mounting groove; 89. a graphene heat-conducting cylinder; 810. a heating element placing groove; 811. a cooling chamber; 812. a coolant outlet; 813. a filling mechanism; 9. a cooling module; 10. a telescopic rod; 11. fixing grooves; 12. a heat-conducting sealing block; 13. a sealing strip; 14. heat conducting glue; 15. an outer cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 7, the present invention provides a technical solution of an EVA plastic film extruder:
an EVA plastic film extruder is shown in figures 1 to 4 and comprises a frame 1, wherein one end of the upper surface of the frame 1 is fixedly provided with a transmission motor 2, and one end of the transmission motor 2 is fixedly provided with a gear box 4; one end of the gear box 4 is rotatably connected with a screw 7, and one end of the screw 7 extends into the outer barrel 15; one end of the outer cylinder 15 is fixedly provided with a machine head connector 6; the upper end of the outer circular surface of the outer cylinder 15 is provided with a feed inlet 5 in a penetrating way; a control platform 3 is fixedly arranged on one side of the upper surface of the rack 1 close to the gear box 4; the charging barrel 8 is fixedly arranged in the outer barrel 15, and the charging barrel 8, the charging opening 5 and the outer barrel 15 are communicated with each other; a cooling module 9 is arranged at one end inside the rack 1, and two ends of the cooling module 9 are fixedly connected with the charging barrel 8 through pipelines respectively;
the charging barrel 8 comprises a barrel body 81, a connecting barrel 82, a cooling liquid inlet 83, a cooling liquid temporary storage cavity 84, a flow channel butt joint port 85, a mounting groove 86, a connecting flange 87, a wear-resisting mechanism 88, a graphene heat-conducting barrel 89, a heating element placing groove 810, a cooling cavity 811, a cooling liquid outlet 812 and a filling mechanism 813; both ends of the cylinder 81 are fixedly connected with connecting cylinders 82; one end of the connecting cylinder 82 is fixedly connected with a connecting flange 87 and is fixedly connected with the outer cylinder 15 through the connecting flange 87; the outer circumferential surface of one of the connecting cylinders 82 is provided with a cooling liquid inlet 83, and the outer circumferential surface of the other connecting cylinder 82 is provided with a cooling liquid outlet 812; a temporary coolant storage cavity 84 is formed in the connecting cylinder 82, and the temporary coolant storage cavity 84 is communicated with the coolant inlet 83 and the coolant outlet 812; the middle positions inside the connecting cylinder 82 and the cylinder 81 are provided with mounting grooves 86 in a penetrating way; four flow channel butt joints 85 are uniformly arranged at the position, close to the mounting groove 86, of one end of the connecting cylinder 82 in an annular shape; the outer circular surface of the cylinder 81 is annularly and uniformly provided with four heating element placing grooves 810; the graphene heat conducting cylinder 89 is fixedly installed at a position, close to the heating element placing groove 810, in the cylinder 81; the interior of the graphene heat conduction cylinder 89 is movably connected with a wear-resistant mechanism 88; the connecting position of the graphene heat conducting cylinder 89 and the cylinder body 81 is uniformly provided with four cooling cavities 811 in an annular shape, and the cooling cavities 811 and the heating element placing grooves 810 are distributed in a staggered manner on a vertical section; a filling mechanism 813 is fixedly installed in the position, corresponding to the cooling cavity 811, in the cylinder 81, and is used for filling the cooling cavity 811 during heating, so that the heating efficiency is improved;
the filling mechanism 813 comprises a telescopic rod 10 and a heat conduction sealing block 12; the telescopic rod 10 is fixedly arranged in the cylinder 81 at a position corresponding to the cooling cavity 811; one end of the telescopic rod 10 is fixedly provided with a heat conduction sealing block 12.
Although the comparative patent mentioned above has the advantages that the inner surface and the outer surface of the charging barrel body are provided with the graphene wear-resistant layer, the graphene powder layer is arranged in the middle of the charging barrel body, the graphene has good thermal conductivity, the time required for heating the charging barrel body to a set temperature is reduced, and the thermal conductivity of the charging barrel body is improved, and meanwhile, compared with the traditional technology, the rapid cooling of the charging barrel body is realized by arranging a plurality of cooling medium circulation channels in the graphene powder layer, in practical use, due to the arranged cooling medium circulation channels, when the charging barrel body is heated, no cooling liquid exists in the channels, which is equivalent to a cavity state, and at the moment, the heat needs to be indirectly conducted to the plastic particles inside the charging barrel body through the heating cavity, so that the thermal conductivity of the charging barrel body is greatly reduced, in the invention, by arranging the novel charging barrel 8, when in use, the control platform 3 controls the telescopic rod 10 to work, the heat conduction sealing block 12 is pushed into the cooling cavity 811 to fill the cooling cavity 811, at the moment, the heat conduction sealing block 12 and the graphene heat conduction cylinder 89 form a heat conduction whole body, the heating body in the heating body placing groove 810 is utilized to heat the heat conduction sealing block 12 and the graphene heat conduction cylinder 89, the heat conduction sealing block 12 is a component made of heat conduction ceramic materials, has good sealing effect while having heat conduction performance, heats plastic materials in the wear-resisting mechanism 88 and then extrudes the plastic materials from a neck mold, when the temperature exceeds the extrusion molding temperature in the heating process, the materials are easy to carbonize, at the moment, the telescopic rod 10 can be controlled to shrink, the heat conduction sealing block 12 is driven to leave the cooling cavity 811, so that the cooling cavity 811 is exposed among the heat conduction sealing block 12, the wear-resisting mechanism 88 and the graphene heat conduction cylinder 89, and then cooling liquid is pumped into the cooling liquid inlet 83 through a pipeline by the cooling module 9, the cooling liquid enters the cooling cavity 811 through the temporary storage cavity 84 of the cooling liquid and the butt joint port 85 of the flow channel, the whole material barrel 8 is cooled, and carbonization of materials caused by overhigh temperature is avoided.
As an embodiment of the present invention, as shown in fig. 5, fixing grooves 11 are embedded in both ends of a side surface of the heat conducting sealing block 12; the fixing groove 11 is filled with heat-conducting glue 14, the sealing strip 13 and the cylinder 81 are tightly abutted by the elasticity of the heat-conducting glue 14, and meanwhile, the heat-conducting effect is improved; one end of the heat-conducting glue 14 is provided with a sealing strip 13; the during operation, in the heating process, when the temperature surpassed the extrusion molding temperature, control telescopic link 10 shrink, drive heat conduction seal block 12 and leave cooling chamber 811, with coolant liquid pump income cooling chamber 811, cool down charging barrel 8 is whole, however, heat conduction seal block 12 is relatively poor with the leakproofness of graphite alkene heat conduction section of thick bamboo 89 hookup location, the coolant liquid is easy to take place to reveal, influence the normal work of extruder, through setting up fixed slot 11, 11 inside packing heat conduction glues 14 of fixed slot, utilize heat conduction glue 14 to be the solid-state characteristic of elasticity below 280 degrees centigrade, can support tightly sealing strip 13 and barrel 81, and then avoid heat conduction seal block 12 and the relatively poor problem of leakproofness of graphite alkene heat conduction section of thick bamboo 89 hookup location, the heat conduction effect has been improved simultaneously.
As an embodiment of the present invention, as shown in fig. 5, an end surface of the heat-conducting sealing block 12 connected to the wear-resistant mechanism 88 is designed to be arc-shaped, and a curvature radius of the end surface is equal to a section circle radius of the wear-resistant mechanism 88; in the during operation, in the heating process, when the temperature surpassed the extrusion molding temperature, control telescopic link 10 shrink, drive heat conduction seal block 12 and leave cooling chamber 811, go into cooling chamber 811 with the coolant liquid, cool down to feed cylinder 8 is whole, however, heat conduction seal block 12 is relatively poor with wear-resisting mechanism 88 hookup location's leakproofness, the coolant liquid is easy to take place to reveal, influence the normal work of extruder, be the arc design through the one end terminal surface of being connected heat conduction seal block 12 with wear-resisting mechanism 88, and its curvature radius equals wear-resisting mechanism 88 cross-section radius, make heat conduction seal block 12 and wear-resisting mechanism 88 more inseparabler that more enough laminates, and then further improved cooling chamber 811's leakproofness, the revealing of coolant liquid has been prevented.
As an embodiment of the present invention, as shown in fig. 6, the wear-resistant mechanism 88 includes a wear-resistant cylinder 881, a flange plate 883, a wear-resistant layer 885, and a flange mounting groove 888; two ends of the wear-resistant cylinder 881 are fixedly connected with the flange plate 883 and are fixedly connected with a flange mounting groove 888 arranged on the connecting flange 87 through the flange plate 883; the inner surface of the wear-resistant cylinder 881 is coated with a wear-resistant layer 885 for improving the wear resistance of the wear-resistant cylinder 881; during operation, the inside graphite alkene wearing layer that sets up of contrast special material barrel is after long-time use, because the friction with the material, make the internal surface wear gradually, barrel 81 hole diameter increases gradually, also crescent with extruder screw 7's cooperation diameter clearance, and then increased the hourglass discharge when being advanced by the extrusion molding material, make material melting effect descend, and then cause finished product quality to descend, through setting up wear-resisting mechanism 88, the internal surface coating wear-resisting layer 885 of wear-resisting section of thick bamboo 881, be used for improving wear-resisting property of wear-resisting section of thick bamboo 881, prolong the life of wear-resisting mechanism 88, when wear-resisting mechanism 88 is worn and torn, can unscrew ring flange 883 in the flange mounting groove 888 of seting up on flange 87, change wear-resisting section of thick bamboo 881, the hourglass discharge when having avoided being advanced by the extrusion molding material, material melting effect has been guaranteed, and then finished product quality has been guaranteed.
As an embodiment of the present invention, as shown in fig. 5 and 6, four limiting pieces 882 are uniformly installed on an outer circumferential surface of the wear-resistant cylinder 881 in an annular shape; four limiting grooves 886 are formed in the inner circular surface of the graphene heat conducting cylinder 89 at the middle positions corresponding to the heating element placing grooves 810; the wear-resistant cylinder 881 is connected with the graphene heat-conducting cylinder 89 in a clamping manner through a limiting sheet 882 and a limiting groove 886; during operation, wear-resisting mechanism 88 is owing to need change, and then can't carry out fixed connection with graphite alkene heat-conducting tube 89, and then wear-resisting mechanism 88 can deflect in graphite alkene heat-conducting tube 89 is inside when using, causes extruder work unusual, through setting up spacing slice 882, spacing groove 886 is connected with graphite alkene heat-conducting tube 89 joint, it is spacing to wear-resisting mechanism 88, can prevent that wear-resisting mechanism 88 from deflecting in graphite alkene heat-conducting tube 89 is inside, the normal work of extruder has further been guaranteed.
As an embodiment of the present invention, as shown in fig. 7, a first installation mark area 884 is sprayed on the outer circumferential edge of the flange 883 corresponding to one set of limiting pieces 882; a second installation mark area 887 is sprayed on the position, corresponding to the limiting groove 886, of the edge of the outer circular surface of the connecting flange 87 and is used for being matched with the first installation mark area 884 to realize the quick alignment of the limiting sheet 882 and the limiting groove 886, so that the replacement efficiency of the wear-resistant cylinder 881 is improved; when changing wear-resisting mechanism 88, because spacing piece 882 and spacing groove 886 of the outside setting of wear-resisting mechanism 88 need aim at the installation, reduced wear-resisting mechanism 88's change efficiency, through setting up first installation mark district 884 cooperation second installation mark district 887, realize the quick alignment of spacing piece 882 and spacing groove 886, improve wear-resisting section of thick bamboo 881 change efficiency.
The working principle is as follows: when the invention is used, firstly, EVA plastic raw material to be extruded is added into a feed inlet 5, because the feed cylinder 8, the feed inlet 5 and an outer cylinder 15 are communicated with each other, the raw material enters the feed cylinder 8, a transmission motor 2 works to drive a screw 7 to rotate to extrude the raw material, and simultaneously, the material is heated to a molten state by using a heating body, when the material is heated, a control platform 3 controls a telescopic rod 10 to work, a heat conduction sealing block 12 is pushed into a cooling cavity 811 to fill the cooling cavity 811, at the moment, the heat conduction sealing block 12 and a graphene heat conduction cylinder 89 form a heat conduction whole, the heat conduction sealing block 12 and the graphene heat conduction cylinder 89 are heated by using the heating body in a heating body placing groove 810, the plastic material in a wear-resisting mechanism 88 is heated and then extruded from a port die, when the temperature exceeds the extrusion temperature, the material is easy to be carbonized, at the moment, the telescopic rod 10 can be controlled to shrink, drive heat conduction sealing block 12 and leave cooling chamber 811, thereby at heat conduction sealing block 12, expose cooling chamber 811 between wear-resisting mechanism 88 and the graphite alkene heat conduction section of thick bamboo 89, recycle cooling module 9 and pump the coolant liquid into coolant liquid inlet 83 through the pipeline, chamber 84 is kept in to the coolant liquid, the runner gets into cooling chamber 811 to interface 85, lower the temperature to feed cylinder 8 whole, avoid the high temperature to cause the material to carbonize, through setting up wear-resisting mechanism 88, wear-resisting section of thick bamboo 881's internal surface coating wear-resisting layer 885, be used for improving wear-resisting section of thick bamboo 881 wearability, prolong wear-resisting mechanism 88's life, when wear-resisting mechanism 88 is worn and torn, can twist off flange dish 883 in the flange mounting groove 888 of seting up on flange 87, change wear-resisting section of thick bamboo 881, the volume of leaking when having avoided being advanced by the extrusion molding material, material melting effect has been guaranteed, and then finished product quality has been guaranteed.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An EVA plastic film extruder comprises a rack (1), wherein a transmission motor (2) is fixedly mounted at one end of the upper surface of the rack (1), and a gear box (4) is fixedly mounted at one end of the transmission motor (2); one end of the gear box (4) is rotatably connected with a screw rod (7), and one end of the screw rod (7) extends into the outer barrel (15); one end of the outer cylinder (15) is fixedly provided with a machine head connector (6); the upper end of the outer circular surface of the outer cylinder (15) is provided with a feed inlet (5) in a penetrating way; a control platform (3) is fixedly arranged on one side of the upper surface of the rack (1) close to the gear box (4); the method is characterized in that: the charging barrel (8) is fixedly arranged in the outer barrel (15), and the charging barrel (8), the charging opening (5) and the outer barrel (15) are communicated with each other; a cooling module (9) is arranged at one end in the rack (1), and two ends of the cooling module (9) are fixedly connected with the charging barrel (8) through pipelines respectively;
the charging barrel (8) comprises a barrel body (81), a connecting barrel (82), a cooling liquid inlet (83), a cooling liquid temporary storage cavity (84), a flow channel butt joint port (85), a mounting groove (86), a connecting flange (87), a wear-resisting mechanism (88), a graphene heat-conducting barrel (89), a heating element placing groove (810), a cooling cavity (811), a cooling liquid outlet (812) and a filling mechanism (813); both ends of the cylinder body (81) are fixedly connected with connecting cylinders (82); one end of the connecting cylinder (82) is fixedly connected with a connecting flange (87) and is fixedly connected with the outer cylinder (15) through the connecting flange (87); the outer circular surface of one of the connecting cylinders (82) is provided with a cooling liquid inlet (83), and the outer circular surface of the other connecting cylinder (82) is provided with a cooling liquid outlet (812); a temporary cooling liquid storage cavity (84) is arranged in the connecting cylinder (82), and the temporary cooling liquid storage cavity (84) is communicated with a cooling liquid inlet (83) and a cooling liquid outlet (812); the middle positions inside the connecting cylinder (82) and the cylinder body (81) are provided with mounting grooves (86) in a penetrating way; one end of the connecting cylinder (82) is provided with four flow channel butt joints (85) uniformly in an annular shape at a position close to the mounting groove (86); the outer circle surface of the cylinder body (81) is annularly and uniformly provided with four heating element placing grooves (810); a graphene heat-conducting cylinder (89) is fixedly arranged in the position, close to the heating element placing groove (810), in the cylinder body (81); the interior of the graphene heat conduction cylinder (89) is movably connected with a wear-resistant mechanism (88); the connecting position of the graphene heat-conducting cylinder (89) and the cylinder body (81) is uniformly provided with four cooling cavities (811) in an annular shape, and the cooling cavities (811) and the heating element placing grooves (810) are distributed in a staggered manner on a vertical section; a filling mechanism (813) is fixedly arranged in the cylinder (81) corresponding to the position of the cooling cavity (811) and used for filling the cooling cavity (811) during heating, so that the heating efficiency is improved;
the filling mechanism (813) comprises a telescopic rod (10) and a heat conduction sealing block (12); a telescopic rod (10) is fixedly arranged in the cylinder (81) corresponding to the cooling cavity (811); one end of the telescopic rod (10) is fixedly provided with a heat conduction sealing block (12).
2. The EVA plastic film extruder of claim 1, wherein: fixing grooves (11) are embedded into two ends of the side surface of the heat conduction sealing block (12); the heat-conducting glue (14) is filled in the fixing groove (11), the sealing strip (13) and the cylinder body (81) are tightly abutted by the elasticity of the heat-conducting glue (14), and meanwhile, the heat-conducting effect is improved; and a sealing strip (13) is arranged at one end of the heat-conducting glue (14).
3. The EVA plastic film extruder of claim 2, wherein: the end face of one end, connected with the wear-resistant mechanism (88), of the heat conduction sealing block (12) is in an arc design, and the curvature radius of the end face is equal to the section circle radius of the wear-resistant mechanism (88).
4. The EVA plastic film extruder of claim 1, wherein: the wear-resistant mechanism (88) comprises a wear-resistant cylinder (881), a flange plate (883), a wear-resistant layer (885) and a flange mounting groove (888); two ends of the wear-resistant cylinder (881) are fixedly connected with flanges (883) and are fixedly connected with flange mounting grooves (888) formed on the connecting flanges (87) through the flanges (883); the inner surface of the wear-resistant cylinder (881) is coated with a wear-resistant layer (885) for improving the wear resistance of the wear-resistant cylinder (881).
5. The EVA plastic film extruder of claim 4, wherein: the outer circular surface of the wear-resistant cylinder (881) is uniformly provided with four limiting pieces (882); four limiting grooves (886) are formed in the inner circular surface of the graphene heat conducting cylinder (89) corresponding to the middle positions of the heating element placing grooves (810); wear-resisting section of thick bamboo (881) are connected with graphite alkene heat-conducting tube (89) joint through spacing piece (882), spacing groove (886).
6. The EVA plastic film extruder of claim 4, wherein: a first installation marking area (884) is sprayed at the position, corresponding to one group of limiting pieces (882), of the edge of the outer circular surface of the flange plate (883); the position spraying that the outer disc edge of flange (87) corresponds spacing groove (886) has second installation mark district (887) for the quick alignment of spacing piece (882) and spacing groove (886) is realized in cooperation first installation mark district (884), improves wear-resisting section of thick bamboo (881) and changes efficiency.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529838.XA CN113510917A (en) | 2021-05-14 | 2021-05-14 | EVA plastic film extruder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110529838.XA CN113510917A (en) | 2021-05-14 | 2021-05-14 | EVA plastic film extruder |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210733227U (en) * | 2019-09-21 | 2020-06-12 | 安徽省聚科石墨烯科技股份公司 | Graphene material barrel of plastic extruder |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210733227U (en) * | 2019-09-21 | 2020-06-12 | 安徽省聚科石墨烯科技股份公司 | Graphene material barrel of plastic extruder |
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