CN220593971U - Composite production line - Google Patents
Composite production line Download PDFInfo
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- CN220593971U CN220593971U CN202322283935.2U CN202322283935U CN220593971U CN 220593971 U CN220593971 U CN 220593971U CN 202322283935 U CN202322283935 U CN 202322283935U CN 220593971 U CN220593971 U CN 220593971U
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- 239000002131 composite material Substances 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 238000001125 extrusion Methods 0.000 claims abstract description 68
- 230000006835 compression Effects 0.000 claims abstract description 56
- 238000007906 compression Methods 0.000 claims abstract description 56
- 230000004888 barrier function Effects 0.000 claims abstract description 45
- 238000000265 homogenisation Methods 0.000 claims abstract description 31
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 238000013329 compounding Methods 0.000 claims description 19
- 239000007791 liquid phase Substances 0.000 claims description 10
- 239000011295 pitch Substances 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 47
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 12
- 238000004898 kneading Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010067482 No adverse event Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The application discloses composite production line includes: the extruder comprises a first extruder, a second extruder and a composite die, wherein the second extruder is arranged side by side with the first extruder, the first extruder comprises a first extrusion screw with a first rod body and a first thread, and the first rod body comprises a first feeding section, a first compression section, a plurality of first homogenization sections and a plurality of first barrier sections which are alternately arranged from front to back; the second extruder comprises a second extrusion screw having a second rod body and a second flight, the second rod body comprising a second charging section, a second compression section, a plurality of second homogenization sections, a second barrier section and a mixing section; the compression ratio of the first extrusion screw and the second extrusion screw is 2.5-4.0; the composite production line is provided with a single extrusion mode in which the composite die is in fluid communication with the first extruder or the second extruder, and a composite extrusion mode in which the composite die is extruded while being in fluid communication with the first extruder and the second extruder; the extrusion yield is high, the energy consumption is reduced, and the product diversity is improved.
Description
Technical Field
The application relates to the technical field of plastic extrusion equipment, in particular to a composite production line.
Background
Because of the excellent mechanical property, physical property, environmental protection property and other characteristics of the TPU material, the dental braces generally adopt TPU, and the production of the TPU dental braces is a sheet prepared by extrusion, calendaring, cooling, rolling and other processes on the basis of TPU granule materials. The PETG product has high transparency, excellent shock resistance and excellent weather resistance, keeps the toughness of the product, and the PETG material can also be applied to dental braces, and the two materials have no adverse reaction when being contacted with a human body, so that the PETG product can be used for manufacturing dental braces. At present, most of domestic TPU dental braces extrusion equipment has the problems of poor plasticizing effect, low extrusion yield and the like in the extrusion production process of TPU and PETG particles, and the production process is behind, consumable and labor-consuming, and is not suitable for the market demands of high yield and low energy consumption.
Disclosure of Invention
In order to solve the technical problems, an object of the present application is to provide a composite production line.
In order to achieve the above purpose, the present application adopts the following technical scheme: a composite production line, comprising:
the first extruder comprises a first extrusion screw rod, wherein the first extrusion screw rod comprises a first rod body extending from front to back and first threads extending along the first rod body in a spiral manner, the first rod body comprises a first feeding section, a first compression section and a first homogenization section in sequence from front to back, the first homogenization section comprises a plurality of first homogenization sections and a plurality of first barrier sections, the plurality of first homogenization sections and the plurality of first barrier sections are alternately arranged along the front to back direction, the first threads are distributed on the first feeding section, the first compression section and the plurality of first homogenization sections, and the compression ratio of the first extrusion screw rod is 2.5-4.0;
the second extruder is arranged side by side with the first extruder, the second extruder comprises a second extrusion screw rod, the second extrusion screw rod comprises a second rod body extending from front to back and second threads extending along the second rod body in a spiral mode, the second rod body comprises a second feeding section, a second compression section and a second homogenizing section from front to back in sequence, the second homogenizing section comprises a plurality of second homogenizing sections, a second barrier section and a mixing section, the second barrier section is arranged between two adjacent second homogenizing sections, the mixing section is arranged at the tail end of the second rod body, the second threads are distributed on the second feeding section, the second compression section and the second homogenizing section, liquid phase grooves are formed in the second threads on the compression section, the groove widths of the liquid phase grooves are gradually increased from front to back, and the compression ratio of the second extrusion screw rod is 2.5-4.0; and
the composite die is connected with the first extruder and the second extruder at the same time;
the composite production line is provided with a single extrusion mode and a composite extrusion mode, and when the composite production line is in the single extrusion mode, the composite die is in fluid communication with the first extruder or the second extruder; when the composite production line is in a composite extrusion mode, the composite die is simultaneously in fluid communication with the first extruder and the second extruder.
In the above technical solution, it is further preferable that the bottom diameter of the first compression section gradually increases from front to back, and the bottom diameter of the first feeding section is equal from front to back and is equal to the minimum bottom diameter of the first compression section; the bottom diameter of the first homogenization section connected with the first compression section is equal from front to back and equal to the maximum bottom diameter of the first compression section, and the bottom diameter of the first homogenization section arranged at the tail of the first rod body is smaller than the bottom diameter of the first homogenization section connected with the first compression section.
In the above technical solution, it is further preferable that the first extrusion screw has three first homogenizing segments and two first barrier segments, the lengths of the two first barrier segments are identical, the lengths of the three first homogenizing segments gradually decrease from front to back, and the lengths of the first homogenizing segments are greater than the lengths of the first barrier segments; the length of the first compression section is greater than the length of the first charging section, which is greater than the length of the first homogenization section.
In the above technical solution, it is further preferable that each of the first barrier segments is provided with a plurality of first material grooves extending helically.
In the above technical solution, it is further preferable that the first thread is disposed at a constant pitch on the first rod body.
In the above technical solution, it is further preferable that the bottom diameter of the second compression section gradually increases from front to back, the groove depth of the liquid phase groove is unchanged, and the bottom diameter of the second feeding section is equal from front to back and is equal to the minimum bottom diameter of the second compression section; the bottom diameter of each second homogenizing segment is equal from front to back and is equal to the maximum bottom diameter of the second compressing segment.
In the above technical solution, it is further preferred that the second extrusion screw has two second homogenizing segments, a second barrier segment and a mixing segment, the length of the second homogenizing segment gradually decreases from front to back, the length of the second barrier segment and the mixing segment is smaller than that of the second homogenizing segment, the length of the second compression segment is larger than that of the second charging segment, and the length of the second charging segment is larger than that of the second homogenizing segment.
In the above technical scheme, it is further preferable that the second barrier section is provided with a plurality of second material tanks extending spirally, and the mixing section is provided with a plurality of mixing parts.
In the above technical solution, it is further preferable that the second thread is disposed at a constant pitch on the second rod body.
In the above technical solution, it is further preferable that the composite mold has an extrusion port, and a first melt flow channel and a second melt flow channel that are in fluid communication with the extrusion port, the first extruder is connected with the first melt flow channel, and the second extruder is connected with the second melt flow channel.
Compared with the prior art, the application has the following beneficial effects:
the two extruders of the composite production line have good plasticizing effect and high extrusion yield, and are suitable for the market demand of high yield; the two extruders are communicated with the composite die, so that single-material sheets or multi-material composite sheets can be produced, the energy consumption is reduced, and the diversity of products and the suitability of a production line are improved.
Drawings
Fig. 1 is a schematic structural diagram of a composite production line according to an embodiment of the present application;
FIG. 2 is a top view of the compounding line of FIG. 1;
FIG. 3 is a schematic view of the first extruder of FIG. 2;
FIG. 4 is a schematic view of the structure of the first extrusion screw of FIG. 3;
FIG. 5 is a schematic view of the first barrier section of FIG. 4;
FIG. 6 is a cross-sectional view taken along line E-E of FIG. 5;
FIG. 7 is a schematic view of the structure of the second extruder of FIG. 2;
FIG. 8 is a schematic view of the structure of the second extrusion screw of FIG. 7;
FIG. 9 is a schematic structural view of the second barrier section of FIG. 8;
FIG. 10 is a cross-sectional view taken along line C-C in FIG. 9;
FIG. 11 is a schematic view of the structure of the kneading block in FIG. 8.
Wherein: 100. a composite production line; 10. a first extruder; 1. a barrel; 2. a first extrusion screw; 21. a first rod body; 211. a first charging section; 212. a first compression section; 213. a first homogenization section; 2131. a first homogenization section; 2132. a first barrier section; 2133. a first homogenization section; 2134. a first barrier section; 2135. a first homogenization section; 22. a first thread; 23. a first trough; 3. a first driving member; 20. a second extruder; 4. a barrel; 5. a second extrusion screw; 51. a second rod body; 511. a second charging section; 512. a second compression section; 513. a second homogenization section; 5131. a second homogenization section; 5132. a second barrier section; 5133. a second homogenization section; 5134. mixing and sectioning; 52. a second thread; 521. a primary rib, 522, and a secondary rib; 53. a liquid phase tank; 54. a second trough; 541. a feed chute; 542. a discharge chute; 55. a barrier section; 56. a kneading section; 6. a second driving member; 30. a composite mold; 7. an extrusion port; 8. a melt metering pump; 9. a screen changer; 40. a frame; 50. and forming and winding 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.
The terms "upper", "lower", "front", "rear" and "upper, lower, front and rear" as used herein refer to the description of FIG. 1; the terms "left" and "right" as used herein refer to the left and right as shown in FIG. 2.
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 present embodiments provide a composite production line 100 suitable for producing TPU sheet or PETG sheet or composite sheet of TPU and PETG for making dental braces. As shown in fig. 1 and 2, the compounding line 100 includes a first extruder 10 and a second extruder 20 arranged side by side, and a compounding die 30 in communication with the first extruder 10 and the second extruder 20.
The composite production line 100 includes a frame 40 supporting the first extruder 10, the second extruder 20, and the composite mold 30, and the first extruder 10 and the second extruder 20 are disposed side by side in the left-right direction on the frame 40.
As shown in fig. 3-6, the first extruder 10 includes a barrel 1, a first extrusion screw 2 rotatably disposed within the barrel 1, and a first driver 3 that drives the first extrusion screw 2 in rotation. The first extrusion screw 2 comprises a first rod body 21 extending from front to back and a first flight 22 extending helically along the first rod body 21, the first rod body 21 being in turn from front to back a first charging section 211, a first compression section 212 and a first homogenizing section 213, wherein the first homogenizing section 213 comprises a first homogenizing section 2131, a first barrier section 2132, a first homogenizing section 2133, a first barrier section 2134 and a first homogenizing section 2135 arranged in turn from front to back. The first screw threads 22 are distributed over the first charging section 211, the first compression section 212, the first homogenizing segment 2131, the first homogenizing segment 2133 and the first homogenizing segment 2135, and the first screw threads 22 are arranged at equal screw pitches on the first rod 21.
The bottom diameter of the first compression section 212 gradually increases from front to back, the bottom diameter of the first feeding section 211 is equal and unchanged from front to back, and the bottom diameter of the first feeding section 211 is equal to the minimum bottom diameter of the first compression section 212; the bottom diameters of first homogenizing segment 2131, first homogenizing segment 2133 and first homogenizing segment 2135 are equal from front to back, respectively, and the bottom diameters of first homogenizing segment 2131 and first homogenizing segment 2133 are equal to the largest bottom diameter of first compressing segment 212, the bottom diameter of first homogenizing segment 2135 being smaller than the bottom diameter of first homogenizing segment 2131. The first screw flight 22 cooperates with the first rod body 21 to form a first extrusion screw 2 with a compression ratio of 2.5-4.0, which is particularly suitable for extruding TPU materials.
The length of the first homogenizing segment 2131 is greater than the length of the first homogenizing segment 2133, the length of the first homogenizing segment 2133 is greater than the length of the first homogenizing segment 2135, the length of the first barrier segment 2132 and the length of the first barrier segment 2134 are equal, the length of the first homogenizing segment 2135 is greater than the length of the first barrier segment 2132, and the homogenizing segments and the barrier segments are arranged alternately with each other in the front-back direction, so that the material is sufficiently sheared, stirred and pressure released in the first homogenizing segment 213, ensuring that the sufficiently plasticized material is stably conveyed into the composite mold 30. The length of the first compression section 212 is greater than the length of the first feeding section 211, the length of the first feeding section 211 is greater than the length of the first homogenizing segment 2131, and the long-distance first compression section 212 enables the materials to be melted and plasticized sufficiently, so that the extrusion quality of the materials is improved. The first screw thread 22 is arranged on the first feeding section 211 with the smallest bottom diameter, so that the feeding amount of the first feeding section 211 is increased, and the productivity of the first extrusion screw 2 is improved.
The first barrier segment 2132 and the first barrier segment 2134 are provided with a plurality of first material grooves 23 extending spirally, the plurality of first material grooves 23 are arranged at equal intervals along the circumference of the first rod body 21, the spiral directions of the first material grooves are the same, and the cross section of each first material groove 23 is semicircular. The material enters the machine barrel 1 from a feed inlet of the machine barrel 1, is positively conveyed to a first compression section 212 by a first feeding section 211, is melted and plasticized by the first compression section 212, is fully plasticized and mixed by alternately arranged homogenization sections and barrier sections in a homogenization section 213, and is subjected to pressure release, so that the material pressure is stably extruded from an outlet of the machine barrel 1; the first extruder 10 is particularly suitable for plasticizing and extruding TPU materials.
As shown in fig. 7-11, the second extruder 20 includes a barrel 4, a second extrusion screw 5 rotatably disposed within the barrel 4, and a second driver 6 that drives the second extrusion screw 5 in rotation. The second extrusion screw 5 includes a second rod body 51 extending from front to rear and a second flight 52 extending helically along the second rod body 51, the second rod body 51 being sequentially from front to rear a second charging section 511, a second compression section 512 and a second homogenizing section 513, wherein the second homogenizing section 513 is sequentially from front to rear a second homogenizing section 5131, a second barrier section 5132, a second homogenizing section 5133 and a kneading section 5134. The second screw threads 52 are distributed over the second charging section 511, the second compression section 512, the second homogenization section 5131 and the second homogenization section 5133, and the second screw threads 52 are arranged at equal screw pitches on the second rod body 51.
The bottom diameter of the second compression section 512 gradually increases from front to back, the bottom diameter of the second feeding section 511 is equal and unchanged from front to back, and the bottom diameter of the second feeding section 511 is equal to the minimum bottom diameter of the second compression section 512; the second homogenizing segment 5131 is connected to the rear side of the second compressing segment 512, the bottom diameters of the second homogenizing segment 5131 and the second homogenizing segment 5133 are equal from front to back, respectively, the bottom diameter of the second homogenizing segment 5131 is equal to the maximum bottom diameter of the second compressing segment 512, and the bottom diameter of the second homogenizing segment 5133 is smaller than the bottom diameter of the second homogenizing segment 5131.
The length of the second homogenizing segment 5133 is greater than the length of the second homogenizing segment 5131, the length of the second homogenizing segment 5131 is greater than the length of the second barrier segment 5132, the length of the second barrier segment 5132 is greater than the length of the mixing segment 5134, the length of the second charging segment 511 is greater than the length of the second homogenizing segment 5133, and the length of the second compressing segment 512 is greater than the length of the second charging segment 511. The second thread 52 is divided into a main rib 521 and a secondary rib 522 by a liquid phase groove 53 on the second compression section 512, the groove width of the liquid phase groove 53 is gradually increased from front to back, the groove depth is unchanged, namely the volume of the liquid phase groove 53 is gradually increased from front to back, and the plasticizing change trend of materials is met. The second barrier section 5132 is provided with a plurality of second material grooves 54 extending spirally, the plurality of second material grooves 54 comprise feeding grooves 541 and discharging grooves 542 alternately arranged along the circumferential direction of the second rod body 51, each discharging groove 542 is located at the rear side of each feeding groove 541 in the axial direction of the second rod body 51, and barrier parts 55 are formed between adjacent feeding grooves 541 and discharging grooves 542 so as to shear materials in the rotation process of the second extrusion screw 5, so that the plasticizing effect of the materials is improved. A plurality of kneading blocks 56 extending radially outward from the second shaft 51 are arranged on the kneading segment 5134, and the plurality of kneading blocks 56 are divided into a plurality of groups, and the plurality of kneading blocks 56 of each group are spirally distributed from front to back. The deeper grooves of the second feeding section 511 allow the second feeding section 511 to deliver more material, increasing the amount of feed per unit time, and increasing the throughput of the second extrusion screw 5. The material is sheared vigorously by the main ribs 521 and the auxiliary ribs 522 which extend spirally, so that the plasticizing efficiency of the material in the second compression section 512 is improved, and the production efficiency of the second extrusion screw 5 is improved.
The material enters the machine barrel 4 from the feed inlet of the machine barrel 4, the second feeding section 511 carries out forward conveying on the material, when the material is on the second compression section 512, the main ribs 521 and the auxiliary ribs 522 which rotate carry out intensive shearing and mixing, the material is fully melted and plasticized in the second compression section 512, the material conveyed to the second homogenizing section 513 is further plasticized by the second barrier section 5132 to improve plasticizing effect, and the second homogenizing section 5131, the second homogenizing section 5133 and the mixing section 5134 stir and mix the plasticized material, stabilize the pressure of the extruded material and avoid fluctuation of output pressure; the second flighting 52 cooperates with the second rod body 51 to form a second extrusion screw 5 having a compression ratio of 2.5-4.0, such that the second extruder 20 is particularly suitable for plasticizing and extruding PETG materials.
With continued reference to fig. 1 and 2, the compounding die 30 has an extrusion port 7 for extruding a sheet formed of material, a first melt flow channel (not shown) in communication with the extrusion port 7, and a second melt flow channel (not shown) to which barrel 1 of the first extruder 10 is connected for conveying TPU material thereto; barrel 4 of the second extruder 20 is connected to a second melt flow channel for providing PETG material to the second melt flow channel. The composite die 30 and the first extruder 10 and the second extruder 20 are respectively provided with a melt metering pump 8 and a net changer 9, the net changer 9 is used for filtering materials provided by the extruder to the composite die, and the melt metering pump 8 is arranged between the net changer 9 and the composite die 30 so as to regulate the flow rate of the materials conveyed from the extruder to the composite die 30.
The composite production line 100 of the present application has a single extrusion mode and a composite extrusion mode, when the composite production line 100 is in the single extrusion mode, the first extruder 10 or the second extruder 20 is in fluid communication with the composite die 30, such that the extrusion port 7 of the composite die 30 extrudes a TPU sheet formed of TPU material or a PETG sheet formed of PETG material; when the compounding line is in a compounding extrusion mode, the first extruder 10 and the second extruder 20 are simultaneously in fluid communication with the compounding die 30, the TPU material and the PETG material are co-extruded and compounded in the compounding die 30, and the TPU-PETG composite sheet is extruded from the extrusion port 7.
The compounding line 100 further includes a forming and winding device 50 disposed downstream of the compounding die 30 for cooling, shaping and winding the sheet extruded from the compounding die 30.
The two extruders of the composite production line 100 have good plasticizing effect and high extrusion yield, and are suitable for the market demand of high yield; the two extruders are communicated with the composite die 30, so that single-material sheets or multi-material composite sheets can be produced, the energy consumption is reduced, and the diversity of products and the suitability of a production line are improved.
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 (10)
1. A composite production line, comprising:
the first extruder comprises a first extrusion screw rod, wherein the first extrusion screw rod comprises a first rod body extending from front to back and first threads extending along the first rod body in a spiral manner, the first rod body comprises a first feeding section, a first compression section and a first homogenization section in sequence from front to back, the first homogenization section comprises a plurality of first homogenization sections and a plurality of first barrier sections, the plurality of first homogenization sections and the plurality of first barrier sections are alternately arranged along the front to back direction, the first threads are distributed on the first feeding section, the first compression section and the plurality of first homogenization sections, and the compression ratio of the first extrusion screw rod is 2.5-4.0;
the second extruder is arranged side by side with the first extruder, the second extruder comprises a second extrusion screw rod, the second extrusion screw rod comprises a second rod body extending from front to back and second threads extending along the second rod body in a spiral mode, the second rod body comprises a second feeding section, a second compression section and a second homogenizing section from front to back in sequence, the second homogenizing section comprises a plurality of second homogenizing sections, a second barrier section and a mixing section, the second barrier section is arranged between two adjacent second homogenizing sections, the mixing section is arranged at the tail end of the second rod body, the second threads are distributed on the second feeding section, the second compression section and the second homogenizing section, liquid phase grooves are formed in the second threads on the compression section, the groove widths of the liquid phase grooves are gradually increased from front to back, and the compression ratio of the second extrusion screw rod is 2.5-4.0; and
the composite die is connected with the first extruder and the second extruder at the same time;
the composite production line is provided with a single extrusion mode and a composite extrusion mode, and when the composite production line is in the single extrusion mode, the composite die is in fluid communication with the first extruder or the second extruder; when the composite production line is in a composite extrusion mode, the composite die is simultaneously in fluid communication with the first extruder and the second extruder.
2. The composite production line of claim 1, wherein the bottom diameter of the first compression section increases gradually from front to back, and the bottom diameter of the first charging section is equal from front to back and is equal to the minimum bottom diameter of the first compression section; the bottom diameter of the first homogenization section connected with the first compression section is equal from front to back and equal to the maximum bottom diameter of the first compression section, and the bottom diameter of the first homogenization section arranged at the tail of the first rod body is smaller than the bottom diameter of the first homogenization section connected with the first compression section.
3. The compounding line of claim 2, wherein said first extrusion screw has three first homogenizing segments and two first barrier segments, two of said first barrier segments being of uniform length, three of said first homogenizing segments decreasing in length from front to back, and each of said first homogenizing segments being of greater length than each of said first barrier segments; the length of the first compression section is greater than the length of the first charging section, which is greater than the length of the first homogenization section.
4. A composite production line according to claim 3, wherein each of said first barrier sections is provided with a plurality of first grooves extending helically.
5. The composite line of claim 1, wherein the first threads are disposed at a uniform pitch on the first rod.
6. The composite production line according to claim 1, wherein the bottom diameter of the second compression section gradually increases from front to back, the depth of the liquid phase tank is unchanged, and the bottom diameter of the second feeding section is equal from front to back and equal to the minimum bottom diameter of the second compression section; the bottom diameter of each second homogenizing segment is equal from front to back and is equal to the maximum bottom diameter of the second compressing segment.
7. The compounding line of claim 6, wherein the second extrusion screw has two second homogenizing segments, a second barrier segment and a compounding segment, the second homogenizing segments decreasing in length from front to back, the second barrier segments and compounding segment decreasing in length from the second homogenizing segment, the second compression segment increasing in length from the second compression segment to the compounding segment, the second charging segment increasing in length from the second homogenizing segment to the compounding segment.
8. The composite production line of claim 7, wherein a plurality of second grooves extending helically are formed in the second barrier section, and a plurality of mixing portions are arranged in the mixing section.
9. The composite line of claim 1 wherein said second threads are disposed at equal pitches on said second shank.
10. The compounding line of claim 1, wherein the compounding die has an extrusion orifice and first and second melt runners in fluid communication with the extrusion orifice, the first extruder being coupled to the first melt runner and the second extruder being coupled to the second melt runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322283935.2U CN220593971U (en) | 2023-08-24 | 2023-08-24 | Composite production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322283935.2U CN220593971U (en) | 2023-08-24 | 2023-08-24 | Composite production line |
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| Publication Number | Publication Date |
|---|---|
| CN220593971U true CN220593971U (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322283935.2U Active CN220593971U (en) | 2023-08-24 | 2023-08-24 | Composite production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220593971U (en) |
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2023
- 2023-08-24 CN CN202322283935.2U patent/CN220593971U/en active Active
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