CN220593972U - Extrusion device of double-sided laminating composite production line - Google Patents
Extrusion device of double-sided laminating composite production line Download PDFInfo
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- CN220593972U CN220593972U CN202322284079.2U CN202322284079U CN220593972U CN 220593972 U CN220593972 U CN 220593972U CN 202322284079 U CN202322284079 U CN 202322284079U CN 220593972 U CN220593972 U CN 220593972U
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- 238000001125 extrusion Methods 0.000 title claims abstract description 84
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000010030 laminating Methods 0.000 title claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 40
- 238000007906 compression Methods 0.000 claims abstract description 40
- 238000002156 mixing Methods 0.000 claims abstract description 26
- 239000007791 liquid phase Substances 0.000 claims abstract description 16
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 7
- 210000002489 tectorial membrane Anatomy 0.000 claims abstract description 3
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 7
- 238000000265 homogenisation Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 33
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 230000007306 turnover Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 10
- 210000003128 head Anatomy 0.000 description 8
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000007790 solid phase Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The application discloses two-sided tectorial membrane composite production line's extrusion device includes: the two extruders are respectively arranged at the upstream and downstream of the online corner turn-over equipment of the double-sided laminating composite production line, each extruder comprises a frame, a machine barrel, an extrusion screw and an extruding die, each extrusion screw comprises a rod body extending from front to back and threads extending along the spiral of the rod body, the rod body sequentially comprises a feeding section, a compression section, a homogenizing section and a mixing section from front to back, the threads are arranged in the feeding section, the compression section and the homogenizing section, the bottom diameter of the compression section is gradually increased from front to back, and the threads are equally distributed on the feeding section and the homogenizing section; the thread of the compression section is provided with a liquid phase groove, and the width of the liquid phase groove is gradually increased from front to back; the compression ratio of the extrusion screw is 2.5-4.0; the extrusion device has high plasticizing effect; the two extruders respectively provide composite materials for the upper surface and the lower surface of the base material, so that the plasticizing effect and the extrusion yield are improved, the diversity is improved, and the method is particularly suitable for plasticizing extrusion of EVA-TPR and other raw materials.
Description
Technical Field
The application relates to the technical field of plastic extrusion equipment, in particular to an extrusion device of a double-sided laminating composite production line.
Background
EVA-TPR is excellent in elasticity, flexibility, transparency, insulativity, low-temperature flexibility, weather resistance and chemical corrosion resistance, and has wide application fields due to the characteristics of excellent mechanical properties, physical properties, environmental protection properties and the like. EVA-TPR is produced based on EVA-TPR particles, the EVA-TPR particles are plasticized through an extrusion screw of an extruder, and the extrusion screw of the traditional extruder comprises a material pressing section, a compression section and a homogenization section, so that the plasticizing effect is poor, the extrusion is unstable, and the improvement of the yield is limited; in addition, the compression ratio range of the traditional extrusion screw is narrow, the plastic raw materials which can be produced are too single, and the extrusion screw is not applicable to plasticizing extrusion of EVA-TPR and other raw materials.
Disclosure of Invention
In order to solve the technical problem, the purpose of the application is to provide an extrusion device of a double-sided laminating composite production line.
In order to achieve the above purpose, the present application adopts the following technical scheme: an extrusion device of a double-sided laminating composite production line, comprising: the two extruders are respectively arranged at the upstream and downstream of the online corner turn-over equipment of the double-sided laminating composite production line, each extruder comprises a frame, a machine barrel arranged on the frame, an extrusion screw rod rotationally arranged in the machine barrel and an extrusion die arranged at the outlet of the machine barrel, the extrusion screw rod comprises a rod body extending from front to back and threads extending along the rod body in a spiral manner, the rod body sequentially comprises a feeding section, a compression section, a homogenizing section and a mixing section from front to back, the threads are arranged on the feeding section, the compression section and the homogenizing section, the bottom diameter of the compression section is gradually increased from front to back, the bottom diameter of the feeding section is equal to the minimum bottom diameter of the compression section, the bottom diameter of the homogenizing section is equal to the maximum bottom diameter of the compression section, and the threads are equally distributed on the feeding section and the homogenizing section; the thread of the compression section is provided with a liquid phase groove, and the width of the liquid phase groove is gradually increased from front to back; the compression ratio of the extrusion screw is 2.5-4.0.
In the above technical solution, it is further preferable that the mixing section includes a plurality of mixing groups, the plurality of mixing groups are sequentially distributed from front to back, each mixing group includes a plurality of mixing portions sequentially arranged around a circumference of the rod body, and each mixing portion extends outward along a radial direction of the rod body.
In the above technical solution, it is further preferable that the lead of the thread of the feeding section is equal to the lead of the thread of the homogenizing section.
In the above technical solution, it is further preferred that the length of the compression section is greater than the length of the feeding section, and that the length of the feeding section is greater than the length of the homogenizing section.
In the above technical solution, it is further preferable that the liquid phase groove divides the thread of the compression section into a main rib and an auxiliary rib extending from the thread, and the lead of the main rib is smaller than the lead of the auxiliary rib.
In the above technical scheme, it is further preferable that the extruder comprises a driving mechanism in transmission connection with the extrusion screw, the driving mechanism is used for driving the extrusion screw to rotate around the axis of the extruder, and a cooling assembly is arranged at the joint of the driving mechanism and the extrusion screw.
In the above technical scheme, it is further preferable that the extruder comprises a melt metering pump arranged between the machine barrel and the extrusion die and a net changer matched with the melt metering pump.
In the above technical solution, it is further preferable that the extrusion die includes an upper die and a lower die which are separable from each other, and the upper die and the lower die are movably disposed on the frame in a front-rear direction.
In the above technical solution, it is further preferable that the inside of the screw core is hollow and is filled with a cooling circulation liquid.
Compared with the prior art, the application has the following beneficial effects:
the compression ratio of the extrusion screw of the extrusion device is 2.5-4.0, so that the plasticizing effect of materials is improved; the extrusion device arranges two extruders in the double-sided lamination composite production line to provide composite materials to the upper and lower surfaces of the base material respectively, improves plasticizing effect and extrusion yield, and the two extruders can extrude different composite materials respectively to be suitable for different composite products, improves diversity, and is particularly suitable for plasticizing extrusion of EVA-TPR and other raw materials.
Drawings
Fig. 1 is a schematic structural diagram of an extrusion device provided in an embodiment of the present application in a double-sided laminating composite production line;
FIG. 2 is a schematic view of the extruder of FIG. 1;
FIG. 3 is a schematic view of the structure of the extrusion screw of FIG. 2;
fig. 4 is a cross-sectional view taken along line A-A in fig. 3.
Wherein: 100. double-sided laminating composite production line; 10. an extruder; 1. a frame; 2. a barrel; 21. a feed inlet; 3. extruding a screw; 31. a rod body; 311. a charging section; 312. a compression section; 313. a homogenization section; 314. a mixing section; 32. a thread; 321. a main edge; 322. auxiliary ribs; 33. a liquid phase tank; 34. a solid phase tank; 35. a mixing group; 351. a kneading section; 4. an extrusion die; 41. an upper die head; 42. a lower die head; 5. a driving mechanism; 6. a melt metering pump; 7. a screen changer; 8. a hopper; 9. a material blocking mechanism; 91. a striker plate; 92. a cylinder; 20. on-line corner turning equipment; 30. a molding device; 10', an extruder; 4', an extrusion die; 30', forming equipment.
Detailed Description
In order to describe the technical content, constructional features, objects and effects of the application in detail, the technical solutions of the embodiments of the application will be described in conjunction with the accompanying drawings in the embodiments of the application, and it is apparent that the described embodiments are only some embodiments of the application, not all embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the utility model. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Furthermore, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the specific shapes, configurations, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.
Hereinafter, the terms "first," "second," and the like 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, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
As used herein, "upper", "lower", "front", "rear" are in terms of upper, lower, front and rear as shown in FIG. 1, and the films of the present application are conveyed from upstream to downstream, i.e., in a front-to-rear direction in FIG. 1.
In the present application, unless explicitly specified and limited otherwise, the term "coupled" is to be construed broadly, and for example, "coupled" may be either fixedly coupled, detachably coupled, or integrally formed; can be directly connected or indirectly connected through an intermediate medium.
The embodiment of the application provides an extrusion device of a double-sided laminating composite production line, which is used for providing a composite layer for the upper surface and the lower surface of a base material of a composite film. As shown in fig. 1, the extrusion apparatus includes two extruders 10, the double-sided laminating composite production line 100 includes an online corner turning device 20 for turning over the substrate 200, the two extruders 10 are respectively located upstream and downstream of the online corner turning device 20, the extruder 10 located upstream of the online corner turning device 20 is used for providing a composite layer for the upper surface of the substrate 200, the extruder 10 located downstream of the online corner turning device 20 is used for providing a composite layer for the lower surface of the substrate 200, and the two extruders 10 have a consistent structure.
As shown in fig. 1 and 2, the extruder 10 comprises a frame 1, a machine barrel 2 mounted on the frame 1, an extrusion screw 3 rotatably arranged in the machine barrel 2, an extrusion die 4 mounted at the outlet of the machine barrel 2, and a driving mechanism 5 for driving the extrusion screw 3 to rotate, wherein the driving mechanism 5 is arranged at one end part of the machine barrel 2 far away from the outlet and is in transmission connection with the extrusion screw 3.
As shown in fig. 3 and 4, the extrusion screw 3 includes a rod body 31 extending from front to back and a screw thread 32 extending helically along the rod body 31, the rod body 31 sequentially comprising a charging section 311, a compression section 312, a homogenizing section 313 and a kneading section 314 from front to back, the screw thread 32 being disposed on the charging section 311, the compression section 312 and the homogenizing section 313. The bottom diameter of the compression section 312 gradually increases from front to back, the bottom diameter of the feeding section 311 is equal to the minimum bottom diameter of the compression section 312, and the bottom diameter of the homogenizing section 313 is equal to the maximum bottom diameter of the compression section 312. The outer diameter of the thread 32 on the shank 31 is equally constant from front to back. The screw thread 32 of the feeding section 311 and the screw thread 32 of the homogenizing section 313 are both equally arranged on the rod body 31, and the lead S1 of the screw thread 32 of the feeding section 311 coincides with the lead S3 of the screw thread 32 of the homogenizing section 313, so that the screw groove volume of the screw thread 32 in the feeding section 311 is larger than that in the homogenizing section 313, and in the present application, the ratio of the screw groove volume of the screw thread 32 in the feeding section 311 to the screw groove volume in the homogenizing section 313 is 2.5-4.0, i.e. the compression ratio of the extrusion screw 3 is 2.5-4.0, and the extrusion screw 3 of the compression ratio can be used for sufficient melting and plasticizing of the composite material, which is advantageous for improving the production efficiency.
The screw thread 32 of the compression section 312 is provided with a liquid phase groove 33, the liquid phase groove 33 divides the screw thread 32 into a main rib 321 and a secondary rib 322 which extend spirally, a solid phase groove 34 adjacent to the liquid phase groove 33 is formed between the secondary rib 322 and the main rib 321, and the solid phase groove 34 extends spirally along the rod body 31 in the same direction as the liquid phase groove 33. The lead S21 of the main edge 321 is equal from front to back, and the lead S22 of the auxiliary edge 322 is equal from front to back, wherein the lead S21 is less than the lead S22; the liquid phase tank 33 has a gradually increasing tank width from front to back, and the solid phase tank 34 has a gradually decreasing tank width from front to back. The material is positively conveyed to the compression section 312 by the feeding section 311, and the main ribs 321 and the auxiliary ribs 322 shear and extrude the material in the rotating process of the extrusion screw 3, so that the material is gradually melted and plasticized from a solid state to a liquid state, the melted and liquefied material is conveyed to the homogenization section 313 by the liquid phase tank 33, the solid state material is gradually reduced in the plasticizing process, the liquefied material is gradually increased, and the change of the liquid phase tank 33 and the solid phase tank 34 accords with the plasticizing condition of the material in the compression section 312.
The mixing section 314 includes a plurality of mixing groups 35, the plurality of mixing groups 35 are sequentially distributed from front to back along the axial direction of the rod body 31, each mixing group 35 includes a plurality of mixing portions 351, and the plurality of mixing portions 351 are sequentially distributed along the circumferential direction of the rod body 31 and extend radially outward from the outer surface of the rod body 31.
As shown in fig. 2, the barrel 2 is provided with a feed inlet 21 corresponding to the feeding section 311, and the barrel 2 further comprises a cooling channel surrounding the feed inlet 21, wherein a cooling medium is introduced into the cooling channel to adjust the temperature of the feed inlet 21, so as to prevent the material from bridging the feed inlet 21 and affecting the production efficiency. The feed inlet 21 department is provided with the hopper 8 that supplies the raw materials to get into, still be provided with the striker mechanism 9 between hopper 8 and the feed inlet 21, the striker mechanism 9 is including the striker plate 91 that can cover feed inlet 21 and the cylinder 92 that drives the striker plate 91 and remove, cylinder 92 drives the striker plate 91 and blocks at feed inlet 21 department and avoid the raw materials in the hopper 8 to get into barrel 2, cylinder 92 drives the striker plate 91 and removes so that the raw materials get into in the barrel 2 by hopper 8, the striker mechanism 9 is used for controlling the unloading speed of feed inlet 21, avoid the material bridging, improve unloading efficiency.
The cooling component is arranged at the joint of the driving mechanism 5 and the extrusion screw 3, and is filled with cooling medium to reduce the temperature of the joint of the driving mechanism 5 and the extrusion screw 3, so that the service life and the production efficiency of the equipment are prevented from being influenced by overheating. The core of the extrusion screw 3 is hollow, and cooling circulation liquid is filled in the extrusion screw to control the temperature of the extrusion screw 3, so that the blanking efficiency is improved.
The whole extrusion die 4 can be arranged on the frame 1 in a movable way along the front-back direction, the extrusion die 4 comprises an upper die head 41 and a lower die head 42 which can be mutually far away, the upper die head 41 and the lower die head 42 can be both moved along the front-back direction, and the upper die head 41 and the lower die head 42 which can be mutually far away are beneficial to online cleaning of the die.
A melt metering pump 6 and a screen changer 7 are further arranged between the extrusion die 4 and the machine barrel 2, the screen changer 7 is arranged between the melt metering pump 6 and the machine barrel 2 to filter the material output by the machine barrel 2, and the melt metering pump 6 is used for controlling the flow of the material conveyed to the extrusion die 4 by the machine barrel 2.
As shown in fig. 1, the double-sided laminating composite production line 100 further includes a forming device 30 matched with the extruders 10, and two extruders 10 are allocated with one forming device 30. The material of front tectorial membrane gets into from the feed inlet 21 of the barrel 2 of the upstream extruder 10, evenly distributed's screw thread 32 forward transport material on the charging section 311 of extrusion screw 3, the material is constantly sheared and compressed by main arris 321 and vice arris 322 when carrying to compression section 312, longer compression section 312 makes the material obtain abundant melting, plasticize, carry to homogenization section 313 after melting plasticize, evenly distributed's screw thread 32 on the homogenization section 313 carries the melting material to mixing section 314, a plurality of mixing parts 351 of mixing section 314 carry out abundant stirring to the melting material for the material is more even, the material of barrel 2 output is carried to extrusion die 4 through the control of melt metering pump 6. The substrate 200 is conveyed to forming equipment matched with the extruder 10 from the lower side of the extruder 10 in a front-up manner, the extrusion die 4 extrudes materials to the forming equipment 30 matched with the extruder, the materials are compounded on the front side of the substrate 200 in the process of rotating a roller of the forming equipment 30, the substrate 200 with the materials compounded on the front side is turned over after passing through the on-line corner turning equipment 20, the substrate is changed into an extruder 10' with the back side facing upwards and conveyed to the downstream side, the extruder 10' is used for melting and plasticizing the materials compounded on the back side of the substrate 200 in the same process as the extruder 10, and then the materials compounded on the back side of the substrate 200 are extruded to the forming equipment 30' by the extrusion die 4', and the materials compounded on the forming equipment 30' on the substrate 200 with the back side facing upwards to form a film with double-sided laminated film and then output.
The compression ratio of the extrusion screw 3 of the extrusion device is 2.5-4.0, so that the plasticizing effect of materials is improved; the extrusion device arranges two extruders 10 in the double-sided laminating composite production line 100 to respectively provide composite materials to the upper and lower surfaces of the base material 200, so that plasticizing effect and extrusion yield are improved, and the two extruders 10 can respectively extrude different composite materials to be suitable for different composite products, so that diversity is improved, and the extrusion device is particularly suitable for plasticizing extrusion of EVA-TPR and other raw materials.
The foregoing has outlined and described the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined in the appended claims, specification and their equivalents.
Claims (9)
1. Extrusion device of two-sided tectorial membrane composite production line, its characterized in that includes: the double-sided laminating composite production line is provided with online corner turning equipment, the two extruders are respectively arranged at the upstream and the downstream of the online corner turning equipment, each extruder comprises a frame, a machine barrel arranged on the frame, an extrusion screw rod rotationally arranged in the machine barrel and an extrusion die arranged at the outlet of the machine barrel, the extrusion screw rod comprises a rod body extending from front to back and a screw thread extending along the rod body in a spiral manner, the rod body sequentially comprises a feeding section, a compression section, a homogenizing section and a mixing section from front to back, the screw thread is arranged at the feeding section, the compression section and the homogenizing section, the bottom diameter of the compression section gradually increases from front to back, the bottom diameter of the feeding section is equal to the minimum bottom diameter of the compression section, the bottom diameter of the homogenizing section is equal to the maximum bottom diameter of the compression section, and the screw thread is uniformly distributed on the feeding section and the homogenizing section; the thread of the compression section is provided with a liquid phase groove, and the width of the liquid phase groove is gradually increased from front to back; the compression ratio of the extrusion screw is 2.5-4.0.
2. An extrusion apparatus according to claim 1, wherein said mixing section comprises a plurality of mixing groups, said plurality of mixing groups being sequentially disposed from front to back, each of said mixing groups comprising a plurality of mixing sections sequentially disposed about a circumference of said shaft, each of said mixing sections extending radially outwardly of said shaft.
3. Extrusion apparatus according to claim 1 wherein the thread of the feed section has a lead equal to the lead of the thread of the homogenizing section.
4. An extrusion apparatus according to claim 3 wherein the length of the compression section is greater than the length of the feed section, and the length of the feed section is greater than the length of the homogenization section.
5. The extrusion apparatus of claim 4 wherein the liquid phase groove separates the threads of the compression section into a major and minor thread extending therealong, the major thread having a lead less than the minor thread.
6. The extrusion device of claim 1, wherein the extruder comprises a driving mechanism in transmission connection with the extrusion screw, the driving mechanism is used for driving the extrusion screw to rotate around the axis of the driving mechanism, and a cooling assembly is arranged at the joint of the driving mechanism and the extrusion screw.
7. The extrusion apparatus of claim 1 wherein said extruder comprises a melt metering pump disposed between said barrel and said extrusion die and a screen changer matingly mounted with said melt metering pump.
8. The extrusion apparatus of claim 1, wherein the extrusion die comprises an upper die and a lower die which are separable from each other, the upper die and the lower die being movably disposed on the frame in a front-rear direction.
9. Extrusion apparatus according to claim 1 wherein the screw core is hollow and is vented with a cooling circulation fluid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322284079.2U CN220593972U (en) | 2023-08-24 | 2023-08-24 | Extrusion device of double-sided laminating composite production line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322284079.2U CN220593972U (en) | 2023-08-24 | 2023-08-24 | Extrusion device of double-sided laminating composite production line |
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| CN220593972U true CN220593972U (en) | 2024-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118219525A (en) * | 2024-05-24 | 2024-06-21 | 饭田（长春）橡塑有限公司 | Extrusion molding method for EVA material |
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2023
- 2023-08-24 CN CN202322284079.2U patent/CN220593972U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118219525A (en) * | 2024-05-24 | 2024-06-21 | 饭田（长春）橡塑有限公司 | Extrusion molding method for EVA material |
| CN118219525B (en) * | 2024-05-24 | 2024-07-30 | 饭田（长春）橡塑有限公司 | Extrusion molding method for EVA material |
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