Extrusion die head

Abstract

The invention provides an extrusion die head which comprises a first module, a second module and at least two auxiliary material channels, the second module covers the first module, and the first module and the second module are buckled to form a main material conveying channel and a discharging channel; wherein the main material conveying channel comprises a main material feeding channel extending in the first direction and a main material feeding shoulder groove extending in the second direction, and the main material feeding channel, the main material feeding shoulder groove and the discharging channel are sequentially communicated; at least two auxiliary material channels arranged at intervals are arranged in the first module and / or the second module, and each auxiliary material channel comprises an auxiliary material feeding channel extending in the first direction, an auxiliary material feeding shoulder groove extending in the second direction and a plurality of auxiliary material outflow channels extending in the third direction. The auxiliary material feeding channel, the auxiliary material feeding shoulder groove, the auxiliary material outflow channel and the discharging channel are sequentially communicated. According to the extrusion die head, the at least two auxiliary material channels are arranged, so that the multi-color or multi-mixed-material composite board can be prepared, and the extrusion die head is simple in structure.

Description

Technical Field

[0001] The present application relates to the field of extrusion dies, and in particular to an extrusion die. Background Art

[0002] In current technology, the extrusion die used to produce composite panels can usually only introduce one color or one rib material into the panel, which cannot meet more product needs. In addition, the extrusion die provided by current technology has main material input channels in both the upper and lower dies, resulting in a complex internal structure of the die, difficulty in disassembly and maintenance, and high cost. Summary of the Invention

[0003] In view of this, the present application provides an extrusion die to solve the problem of single produced sheet materials and complex extrusion die structure.

[0004] In order to solve the above-mentioned technical problems, the first aspect of the present application provides an extrusion die head for extruding composite panels, the extrusion die head comprising: a first module; a second module, which is covered on the first module, and the first module and the second module are buckled together to form a main material conveying channel and a discharge channel, the main material conveying channel is used to convey the main material medium; wherein the main material conveying channel comprises a main material feed channel extending along a first direction and a main material feed shoulder groove extending along a second direction, the main material feed channel, the main material feed shoulder groove and the discharge channel are connected in sequence; at least two spaced auxiliary material channels are arranged in the first module and / or the second module, each auxiliary material channel is used to convey the auxiliary material medium, comprising an auxiliary material feed channel extending along the first direction, an auxiliary material feed shoulder groove extending along the second direction and several auxiliary material outflow channels extending along the third direction, the auxiliary material feed channel, the auxiliary material feed shoulder groove, the auxiliary material outflow channel and the discharge channel are connected in sequence; wherein the first direction, the second direction and the third direction are arranged to cross each other.

[0005] According to one embodiment of the present application, the main material feeding channel and at least two auxiliary material feeding channels are arranged at intervals along the third direction.

[0006] According to one embodiment of the present application, in each auxiliary material channel, several auxiliary material outflow channels are arranged along the second direction, and between different auxiliary material channels, several auxiliary material outflow channels of one auxiliary material channel and several auxiliary material outflow channels of an adjacent auxiliary material channel are spaced apart at least in the first direction.

[0007] According to one embodiment of the present application, at least two auxiliary material channels are both provided in the first module.

[0008] According to one embodiment of the present application, a first module includes a main body and a cover plate. The main body has a first side and a second side disposed opposite each other, the first side facing the main material conveying channel and the second side away from the main material conveying channel. The auxiliary material feed shoulder groove of at least one auxiliary material channel has a first opening extending in a second direction on the second side. The cover plate has a first slot extending in the second direction on a side facing the first opening. The cover plate is openably and closably mounted on the second side to open or close the first opening. The first opening and the first slot are closed to form an auxiliary material feed shoulder groove. The first module has a step on the second side, the step having a first outlet hole formed thereon. The first outlet hole is an outlet hole for an auxiliary material feed channel. The cover plate includes a through hole. When the cover plate is mounted on the first opening, the first slot of the cover plate and the first opening form an auxiliary material feed shoulder groove. One end of the through hole is connected to the auxiliary material feed shoulder groove, and the other end of the through hole is openably and closably connected to the first outlet hole. After the two ends of the through hole are connected to the first slot and the first outlet hole, the through hole of the cover plate connects the auxiliary material feed channel and the auxiliary material feed shoulder groove.

[0009] According to one embodiment of the present application, the auxiliary material feed shoulder groove of at least another auxiliary material channel has a second opening opened on the second side and extending along the second direction, and the cover plate has a first blocking wall extending along the second direction on the side facing the second opening, and the first blocking wall of the cover plate can be opened and closed on the second side to open or close the second opening; wherein, the second opening and the first blocking wall are closed to form another auxiliary material feed shoulder groove; the second opening has a second outlet hole located on the second side, and the second outlet hole is the outlet hole of another auxiliary material feed channel.

[0010] According to one embodiment of the present application, the discharge channel includes a premixing zone and a forming zone. The premixing zone is located between the main material feed shoulder groove and the forming zone, and the port of the auxiliary material outflow channel toward the discharge channel is located in the premixing zone.

[0011] According to one embodiment of the present application, the extrusion die head further includes an extension tube, which is connected to a port of the auxiliary material outflow channel facing the discharge channel, and a port of the extension tube away from the auxiliary material outflow channel is located in the molding area.

[0012] According to one embodiment of the present application, the feed port of the main material feed channel and the feed ports of at least two auxiliary material feed channels are arranged along a third direction.

[0013] According to one embodiment of the present application, the feed port of the main material feed channel is located on the central axis of the main material feed shoulder groove in the length direction; and / or, the feed port of the auxiliary material feed channel is located on the central axis of the auxiliary material feed shoulder groove in the length direction.

[0014] The beneficial effects of the present application are as follows: the extrusion die provided in the present application is used to extrude composite sheets, and the extrusion die includes a first module, a second module, and at least two spaced-apart auxiliary material channels. The at least two spaced-apart auxiliary material channels are arranged in the first module and / or the second module, each auxiliary material channel is used to convey auxiliary material medium, including an auxiliary material feed channel extending along a first direction, an auxiliary material feed shoulder groove extending along a second direction, and a plurality of auxiliary material outflow channels extending along a third direction, and the auxiliary material feed channel, the auxiliary material feed shoulder groove, the auxiliary material outflow channel, and the discharge channel are connected in sequence. The auxiliary material channel of the present application is used to convey auxiliary material medium. First, the auxiliary material medium can be a material of a different color from the main material medium, and after mixing, it is used to prepare multi-color composite sheets, which can improve visual effects, meet the personalized decoration needs of different scenes, and enhance the product's aesthetics and market competitiveness. Second, when the auxiliary material medium is made of a different material from the main material medium and combined with the main material medium, it can make up for the main material's shortcomings in certain properties, combine the advantages of different media, give the composite sheet better overall performance, and expand the product's application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. Among them:

[0016] Figure 1 A schematic structural diagram of an extrusion die and a composite plate provided in one embodiment of the present application;

[0017] Figure 2 A schematic diagram of the exploded structure of an extrusion die head provided in one embodiment of the present application;

[0018] Figure 3 A schematic side view of the structure of an extrusion die head provided in one embodiment of the present application;

[0019] Figure 4 This is a schematic structural diagram of the first module or the second module according to an embodiment of the present application;

[0020] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure in the AA direction;

[0021] Figure 6 for Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0022] Figure 7 A schematic side view of the structure of an extrusion die head provided in one embodiment of the present application;

[0023] Figure 8 A schematic side view of the structure of an extrusion die head provided in another embodiment of the present application;

[0024] Figure 9 A schematic side view of the structure of an extrusion die head provided in another embodiment of the present application;

[0025] Figure 10 for Figure 7 Schematic diagram of the local structure of part E;

[0026] Figure 11 A schematic diagram of the three-dimensional structure of the first module or the second module provided in one embodiment of the present application;

[0027] Figure 12 A schematic diagram of the bottom structure of an extrusion die head provided in one embodiment of the present application;

[0028] Figure 13 A front view of an extrusion die head provided in one embodiment of the present application and a schematic diagram of its cross-sectional structure in the CC and DD directions;

[0029] Figure 14 A schematic diagram of the three-dimensional structure of a first module provided in one embodiment of the present application;

[0030] Figure 15 A schematic diagram of the three-dimensional structure of the first module provided by one embodiment of the present application from another perspective;

[0031] Figure 16 A schematic diagram of the three-dimensional structure of a cover plate provided in one embodiment of the present application from one viewing angle;

[0032] Figure 17 A schematic diagram of the three-dimensional structure of a cover plate provided in one embodiment of the present application from another perspective;

[0033] Figure 18 A front view of an extrusion die head provided in one embodiment of the present application and a schematic cross-sectional structure diagram in the FF direction;

[0034] Figure 19 for Figure 18 Schematic diagram of the local structure of part G;

[0035] Figure 20 A schematic diagram of the composite plate structure provided in one embodiment of the present application. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the accompanying drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] In current technology, the die head used to produce ribbed composite co-extruded products (composite sheets with ribs inside) can usually only introduce one color or one rib material into the product, which cannot meet the needs of more products. In addition, the die head provided by current technology has main material input channels in both the upper and lower dies, resulting in a complex internal structure of the die head, difficulty in disassembly and maintenance, and high cost.

[0039] Therefore, the present application provides an extrusion die head, which can not only extrude plates with various colors, or extrude plates with composite materials to meet more needs, but also has a relatively light total mass, a simple structure, and is easy to disassemble and maintain.

[0040] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4The extrusion die head 10 provided in the present application is used to extrude a composite board 20. The extrusion die head 10 includes a first module 101, a second module 102 and at least two auxiliary material channels 105 arranged at intervals. The second module 102 is covered on the first module 101. The first module 101 and the second module 102 are buckled together to form a main material conveying channel 103 and a discharge channel 104. The main material conveying channel 103 is used to convey the main material medium; wherein the main material conveying channel 103 includes a main material feed channel 1031 extending along the first direction F1 and a main material feed shoulder groove 1032 extending along the second direction F2. The main material feed channel 1031, the main material feed shoulder groove 1032 and the discharge channel 104 are connected in sequence; at least two auxiliary material channels 105 arranged at intervals are provided. Placed in the first module 101 and / or the second module 102, each auxiliary material channel 105 is used to transport auxiliary material media, including an auxiliary material feed channel 1051 extending along the first direction F1, an auxiliary material feed shoulder groove 1052 extending along the second direction F2 and a plurality of auxiliary material outflow channels 1053 extending along the third direction F3, and the auxiliary material feed channel 1051, the auxiliary material feed shoulder groove 1052, the auxiliary material outflow channel 1053 and the discharge channel 104 are connected in sequence; wherein, the first direction F1, the second direction F2 and the third direction F3 are arranged to cross each other.

[0041] In the embodiment of the present application, the first module 101 and the second module 102 are arranged relative to each other and, after being fastened together, form a main material conveying channel 103 and a discharge channel 104. The main material conveying channel 103 is used to convey the main material medium, and the discharge channel 104 is used to extrude the composite sheet 20. In the embodiment of the present application, the first module 101 and the second module 102 are fastened together to form a main material conveying channel 103. A portion of the main material conveying channel 103 is located in the first module 101, and the other portion is located in the second module 102. The structure is simple and easy to disassemble. After disassembly, the disassembled main material conveying channel 103 can be directly cleaned, making the extrusion die head 10 easy to maintain and extending its service life.

[0042] The main material feed channel 1031 extending along the first direction F1 and the main material feed shoulder groove 1032 extending along the second direction F2 form a hanger-like main material conveying channel 103. The hanger-like main material conveying channel 103 has the advantage of evenly distributing the main material medium entering from the main material feed channel 1031 within the main material feed shoulder groove 1032 extending in the second direction F2, thereby avoiding uneven distribution such as local accumulation or local lack of medium. By evenly distributing the main material medium, the thickness of the extruded composite sheet 20 is uniform after the main material medium enters the discharge channel 104, thereby improving the yield rate of the composite sheet 20.

[0043] The extrusion die 10 includes at least two auxiliary material channels 105 spaced apart. The at least two auxiliary material channels 105 spaced apart can be simultaneously provided in the first module 101, or simultaneously provided in the second module 102, or respectively provided in the first module 101 and the second module 102. The auxiliary material channel 105 is used to convey auxiliary material media. In one aspect, the auxiliary material media can be a material of a different color from the main material media. The media of at least two colors are mixed through the auxiliary material channel 105 and the main material conveying channel 103 through the discharge channel 104 and then used to prepare a multi-color composite board 20, which can improve the visual effect, meet the personalized decoration needs of different scenes, and enhance the aesthetics and market competitiveness of the product.

[0044] Secondly, when the auxiliary medium is made of a different material than the main medium, such as high-toughness nylon, it can act as a reinforcement similar to steel bars. When the composite sheet 20 is subjected to external impact, it effectively disperses stress, preventing the composite sheet 20 from shattering and causing safety issues. Even after rupture, the composite sheet 20 can still bond together, significantly improving the product's safety and durability. Combining auxiliary media with the main medium of different materials can compensate for certain performance deficiencies of the main material. For example, in building panels, the main material provides basic strength, while the added fire-resistant auxiliary material can enhance flame retardancy and meet fire safety standards. In packaging materials, the added moisture-proof auxiliary material can enhance water resistance. By providing at least two spaced auxiliary material channels 105, the advantages of different media can be combined, giving the composite sheet 20 superior overall performance and expanding the product's application range. By providing multiple spaced auxiliary material channels 105, the type and proportion of auxiliary media added can be flexibly controlled, allowing the product's various characteristics to be adjusted as needed to meet diverse usage requirements.

[0045] Each auxiliary material channel 105 includes an auxiliary material feed channel 1051 extending along a first direction F1, an auxiliary material feed shoulder groove 1052 extending along a second direction F2, and a plurality of auxiliary material outflow channels 1053 extending along a third direction F3. The auxiliary material feed channel 1051, the auxiliary material feed shoulder groove 1052, and the auxiliary material outflow channels 1053 form a hanger-like auxiliary material channel 105. This hanger-like auxiliary material channel 105 has the advantage of evenly distributing the auxiliary material medium entering from the auxiliary material feed channel 1051 within the auxiliary material feed shoulder groove 1052 extending in the second direction F2, thereby avoiding uneven distribution such as localized accumulation or lack of medium. By evenly distributing the auxiliary material medium, after the auxiliary material medium enters the discharge channel 104 through the plurality of auxiliary material outflow channels 1053 extending along the third direction F3, the thickness of the extruded composite sheet 20 is uniform, thereby improving the yield rate of the composite sheet 20.

[0046] According to one embodiment of the present application, referring to Figure 7The main material feeding channel 1031 and at least two auxiliary material feeding channels 1051 are arranged at intervals along the third direction F3.

[0047] In the embodiment of the present application, the main material feed channel 1031 and at least two auxiliary material feed channels 1051 are arranged at intervals along the third direction F3. The independently spaced feed channels can independently control the flow rate, temperature and other parameters of the main material medium and the auxiliary material medium, thereby avoiding mutual interference between different material media during the transportation process (such as material degeneration caused by temperature conduction), improving the stability of extrusion molding, and reducing the defective rate of the composite plate 20.

[0048] According to one embodiment of the present application, continue to refer to Figure 7 In each auxiliary material channel 105, several auxiliary material outflow channels 1053 are arranged along the second direction F2, and between different auxiliary material channels 105, several auxiliary material outflow channels 1053 of one auxiliary material channel 105 and several auxiliary material outflow channels 1053 of an adjacent auxiliary material channel 105 are spaced apart at least in the first direction F1.

[0049] In the embodiment of the present application, several auxiliary material outflow channels 1053 are arranged along the second direction F2, and several auxiliary material outflow channels 1053 are extended along the third direction F3, which is conducive to uniformly passing the auxiliary material medium in the auxiliary material feed shoulder groove 1052 into the discharge channel 104, so that the thickness of the composite plate 20 extruded from the discharge channel 104 is uniform, or different colors are mixed evenly, or different materials are mixed evenly.

[0050] Between different auxiliary material channels 105, several auxiliary material outflow channels 1053 of one auxiliary material channel 105 and several auxiliary material outflow channels 1053 of adjacent auxiliary material channels 105 are spaced apart at least in the first direction F1. The several independently spaced auxiliary material outflow channels 1053 can independently control the flow rate, temperature and other parameters of different auxiliary material media, thereby avoiding mutual interference between different auxiliary material media during the transportation process (such as material degeneration caused by temperature conduction), improving the stability of extrusion molding, and reducing the defective rate of the composite plate 20.

[0051] Reference Figure 13 Taking the extrusion die head 10 with two auxiliary material channels 105 as an example, the auxiliary material channel 105 includes a first auxiliary material channel 10551 and a second auxiliary material channel 10552 spaced apart along the third direction F3, the first auxiliary material channel 10551 includes a plurality of first auxiliary material outflow channels 10531 arranged along the second direction F2, the second auxiliary material channel 10552 includes a plurality of second auxiliary material outflow channels 10532 arranged along the second direction F2, and the first auxiliary material outflow channel 10531 and the second auxiliary material outflow channel 10532 are spaced apart in the first direction F1.

[0052] In other embodiments, the main material feed channel 1031 and at least two auxiliary material feed channels 1051 are spaced apart along the third direction F3, and in each auxiliary material channel 105, a plurality of auxiliary material outflow channels 1053 are arranged along the second direction F2, and between different auxiliary material channels 105, a plurality of auxiliary material outflow channels 1053 of an auxiliary material channel 105 and a plurality of auxiliary material outflow channels 1053 of an adjacent auxiliary material channel 105 are spaced apart at least in the first direction F1.

[0053] According to one embodiment of the present application, referring to Figure 8 , at least two auxiliary material channels 105 are both arranged in the first module 101 .

[0054] In the embodiment of the present application, at least two auxiliary material channels 105 are centrally arranged in the first module 101, which simplifies the internal structural layout of the first module 101, shortens the transmission path of the auxiliary material medium, and reduces the pressure loss and energy consumption during the extrusion process; at the same time, the auxiliary material channels 105 are integrated into a single module, which reduces the complex connection structure between modules and reduces the overall design difficulty and processing cost of the extrusion die 10; at the same time, the standardized first module 101 can be repeatedly applied to the design of extrusion dies 10 of different specifications, reducing R&D investment and improving production versatility, and is particularly suitable for multi-batch and customized production needs.

[0055] According to one embodiment of the present application, in combination with reference to Figure 14 (a) The first module 101 includes a main body 1011 and a cover plate 1012, the main body 1011 has a first side 1011a and a second side 1011b arranged opposite to each other, the first side 1011a faces the main material conveying channel 103, and the second side 1011b is away from the main material conveying channel 103, the auxiliary material feeding shoulder groove 1052 of at least one auxiliary material channel 105 has a first opening 10521 opened on the second side 1011b and extending along the second direction F2, the cover plate 1012 has a first slot 10522 extending along the second direction facing the first opening 10521, and the cover plate 1012 is openable and closable on the second side 1011b to open or close the first opening 10521; wherein, the auxiliary material feeding shoulder groove 1052 is formed after the first opening 10521 and the first slot 10522 are closed.

[0056] In the embodiment of the present application, the main body 1011 has a first side 1011a and a second side 1011b that are opposite to each other in the third direction F3, and the second side 1011b is away from the main material delivery channel 103. The auxiliary material feeding shoulder groove 1052 of at least one auxiliary material channel 105 is exposed at the second side 1011b, and has a first opening 10521 after being exposed. The cover plate 1012 has a first slot 10522 extending along the second direction on the side facing the first opening 10521. The cover plate 1012 covers the first opening 10521. When the first slot 10522 of the cover plate 1012 and the first opening 10521 are closed, the auxiliary material feeding shoulder groove 1052 is formed. The cover plate 1012 plays a sealing role, preventing leakage of the auxiliary material medium and improving the pressure stability of the medium in the auxiliary material channel 105.

[0057] After the cover plate 1012 is removed, the first opening 10521 is exposed, so that the auxiliary material feeding shoulder groove 1052 exposed to the outside can be directly cleaned, which has a simple structure and convenient operation.

[0058] In some embodiments, reference Figure 14 (a) and Figure 15 The first module 101 has a step 1013 located on the second side 1011b, and the step 1013 has a first outlet 10131. The first outlet 10131 is an outlet of an auxiliary material feeding channel 1051. Figure 16 and Figure 17 , the cover plate 1012 includes a through hole 10121. When the cover plate 1012 is covered on the first opening 10521, the first slot 10522 of the cover plate 1012 and the first opening 10521 form an auxiliary material feeding shoulder groove 1052. At this time, one end 10121a of the through hole 10121 is connected to the auxiliary material feeding shoulder groove 1052, and the other end 10121b of the through hole 10121 is used to open and close the first outlet hole 10131. Figure 18 and Figure 19 After the two ends (10121a and 10121b) of the through hole 10121 are connected with the first slot 10522 (part of the auxiliary material feeding shoulder slot 1052) and the first outlet hole 10131 respectively, the through hole 10121 of the cover plate 1012 is connected with the auxiliary material feeding channel 1051 and the auxiliary material feeding shoulder slot 1052.

[0059] In the embodiment of the present application, the first opening 10521 is exposed after the cover plate 1012 is removed, so that the auxiliary material feed shoulder groove 1052 exposed to the outside can be directly cleaned. The structure is simple, the operation is convenient, and the easily removable cover plate 1012 makes it easy to check the blockage of the auxiliary material feed channel 1051 and the auxiliary material feed shoulder groove 1052, and maintenance is convenient.

[0060] In some embodiments, reference Figure 14 (b) and Figure 15 The auxiliary material feeding shoulder groove 1052 of at least one other auxiliary material channel 105 has a second opening 10523 opened on the second side 1011b and extending along the second direction F2, and the cover plate 1012 has a first blocking wall 10123 extending along the second direction on the side facing the second opening 10523. The cover plate 1012 can be opened and closed on the second side 1011b to open or close the second opening 10523; wherein, when the second opening 10523 and the first blocking wall 10123 are closed, another auxiliary material feeding shoulder groove 1052 is formed.

[0061] In the embodiment of the present application, the cover plate 1012 is covered on the second opening 10523. When the first blocking wall 10123 of the cover plate 1012 and the second opening 10523 are closed, an auxiliary material feeding shoulder groove 1052 is formed. The cover plate 1012 plays a sealing role to prevent leakage of the auxiliary material medium and improve the pressure stability of the medium in the auxiliary material channel 105.

[0062] After the cover plate 1012 is removed, the second opening 10523 is exposed, so that the auxiliary material feeding shoulder groove 1052 exposed to the outside can be directly cleaned, which has a simple structure and convenient operation.

[0063] In some embodiments, reference Figure 14 (b) and Figure 15 The second opening 10523 has a second outlet hole 10523 a located on the second side 1011 b , and the second outlet hole 10523 a is an outlet hole of another auxiliary material feeding channel 1051 .

[0064] In the embodiment of the present application, after removing the cover plate 1012, the second opening 10523 and the second outlet hole 10523a are exposed, allowing direct cleaning of the auxiliary material feed shoulder groove 1052 and the outlet hole exposed to the outside. This has a simple structure and is easy to operate. In addition, the easily removable cover plate 1012 facilitates inspection of the auxiliary material feed channel 1051 and the auxiliary material feed shoulder groove 1052 for blockage, facilitating maintenance.

[0065] According to one embodiment of the present application, referring to Figure 9 The discharge channel 104 includes a premixing zone 1041 and a molding zone 1042 . The premixing zone 1041 is located between the main material feed shoulder groove 1032 and the molding zone 1042 . The port 10533 of the auxiliary material outflow channel 1053 toward the discharge channel 104 is located in the premixing zone 1041 .

[0066] In this embodiment, the premixing zone 1041 is located between the primary material feed shoulder groove 1032 and the forming zone 1042. Port 10533 of the auxiliary material outflow channel 1053, which faces the discharge channel 104, is located in the premixing zone 1041, providing ample space for the auxiliary material medium to contact and mix with the primary material medium. Once the auxiliary material medium enters the premixing zone through port 10533, it is pushed by the continued flow of the primary material medium and then extruded through the forming zone 1042. If the auxiliary material medium is of different colors, a composite sheet 20 with a mixed surface can be formed.

[0067] According to one embodiment of the present application, referring to Figure 7 and Figure 10 The extrusion die head 10 further includes an extension tube 106 , which is connected to a port 1061 of the auxiliary material outflow channel 1053 facing the discharge channel 104 , and is located in the molding area 1042 away from the port 1061 of the auxiliary material outflow channel 1053 .

[0068] In this embodiment of the present application, port 1061 of extension tube 106, remote from auxiliary material outflow channel 1053, is located in forming zone 1042. This allows the auxiliary material medium to be directly injected into the primary material flow during the forming phase of composite sheet 20, precisely positioning reinforcement 201. Injecting the auxiliary material medium into forming zone 1042 prevents the auxiliary material medium from drifting or dispersing during the initial flow, ensuring that the reinforcement is evenly distributed along the pre-set path, forming a stable "skeleton" structure.

[0069] Port 1061 of extension tube 106 is located in forming zone 1042. Adjusting the length and diameter of extension tube 106, as well as the injection speed of the auxiliary material, allows for flexible control of the thickness, density, and orientation of the reinforcement 201. This precise injection method in forming zone 1042 reduces defective products caused by misalignment and poor mixing of reinforcement 201, thereby reducing material waste. Furthermore, stable process parameters reduce equipment commissioning time and energy consumption, improving production efficiency and enabling low-cost, high-quality production of reinforced composite panels 20.

[0070] Reference Figure 20 Composite sheet 20 includes ribs 201. The ribs 201 vary in the properties of the resulting composite sheet 20 depending on the material used. For example, ribs 201 in different colors can enhance the visual appeal of composite sheet 20. If ribs 201 are made of high-toughness nylon, they effectively disperse stress when impacted. This prevents the composite sheet 20 from completely collapsing and allows it to remain bonded together, significantly improving product safety and durability.

[0071] According to one embodiment of the present application, in combination with reference to Figure 11 and Figure 12The feed port 1033 of the main material feed channel 1031 and the feed ports 1055 of at least two auxiliary material feed channels 1051 are arranged along the third direction F3.

[0072] In the embodiment of the present application, the feed port 1033 of the main material feed channel 1031 and the feed ports 1055 of at least two auxiliary material feed channels 1051 are arranged along the third direction F3. The independently spaced feed ports can respectively introduce the main material medium and different auxiliary material media. The flow rate, temperature and other parameters of different media in different feed ports can be independently controlled to avoid mutual interference between different media during the transportation process, improve the stability of extrusion molding, and reduce the defective rate of the composite plate 20.

[0073] According to one embodiment of the present application, referring to Figure 5 、 Figure 6 、 Figure 11 and Figure 12 The feed port 1033 of the main material feed channel 1031 is located on the central axis L1 of the main material feed shoulder groove 1032 in the length direction; and / or, the feed port 1055 of the auxiliary material feed channel 1051 is located on the central axis L2 of the auxiliary material feed shoulder groove 1052 in the length direction.

[0074] In the embodiment of the present application, the feed inlets (feed inlet 1033 of the main material feed channel 1031 and feed inlet 1055 of the auxiliary material feed channel 1051) are located on the central axis (L1, L2), so that when the medium (main material medium and auxiliary material medium) enters the feed shoulder groove (main material feed shoulder groove 1032 and auxiliary material feed shoulder groove 1052) from the feed inlet, it can diffuse symmetrically to both sides starting from the center of the feed shoulder groove, forming a uniform diversion effect. This avoids the accumulation of medium material or uneven flow rate caused by unilateral feeding, ensures that the flow rate, pressure and flow rate of the medium material on both sides of the feed shoulder groove are consistent, and thus makes the material entering the subsequent channels more evenly distributed, thereby improving the quality of the composite board 20.

[0075] Furthermore, the central feed method shortens and symmetricals the media's flow path within the feed shoulder, reducing energy loss and flow resistance caused by vortexes and eddies. The media can be conveyed more smoothly along the feed shoulder, avoiding localized excessive pressure or slow flow, thereby improving media delivery efficiency and extrusion stability.

[0076] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An extrusion die head, characterized in that, For extruding composite panels, the extrusion die head comprises: Module 1; The second module is covered on the first module, and the first module and the second module are buckled together to form a main material conveying channel and a discharge channel, wherein the main material conveying channel is used to convey the main material medium; wherein the main material conveying channel includes a main material feeding channel extending along the first direction and a main material feeding shoulder groove extending along the second direction, and the main material feeding channel, the main material feeding shoulder groove and the discharge channel are connected in sequence; At least two spaced-apart auxiliary material channels are provided in the first module and / or the second module, each of the auxiliary material channels is used to transport auxiliary material medium, and includes an auxiliary material feed channel extending along a first direction, an auxiliary material feed shoulder groove extending along a second direction, and a plurality of auxiliary material outflow channels extending along a third direction, wherein the auxiliary material feed channel, the auxiliary material feed shoulder groove, the auxiliary material outflow channel, and the discharge channel are sequentially connected; The first direction, the second direction and the third direction are arranged to intersect with each other.

2. The extrusion die head according to claim 1, wherein The main material feeding channel and the at least two auxiliary material feeding channels are arranged at intervals along the third direction.

3. The extrusion die head according to claim 1, wherein In each of the auxiliary material channels, a plurality of the auxiliary material outflow channels are arranged along the second direction, and between different auxiliary material channels, a plurality of the auxiliary material outflow channels of one auxiliary material channel and a plurality of the auxiliary material outflow channels of an adjacent auxiliary material channel are spaced apart at least in the first direction.

4. The extrusion die head according to claim 1, wherein The at least two auxiliary material channels are both arranged in the first module.

5. The extrusion die head according to claim 1, characterized in that The first module includes a main body and a cover plate, wherein the main body has a first side and a second side arranged opposite to each other, the first side facing the main material conveying channel, and the second side away from the main material conveying channel, the auxiliary material feeding shoulder groove of at least one of the auxiliary material channels has a first opening opened on the second side and extending along the second direction, the cover plate has a first slot extending along the second direction on a side facing the first opening, and the cover plate is openably and closably arranged on the second side to open or close the first opening; wherein the first opening and the first slot are closed to form the auxiliary material feeding shoulder groove; The first module has a step located on the second side, and the step has a first outlet hole, which is an outlet hole of the auxiliary material feeding channel; the cover plate includes a through hole, and when the cover plate is covered on the first opening, the first slot of the cover plate and the first opening form the auxiliary material feeding shoulder groove, and one end of the through hole is connected with the auxiliary material feeding shoulder groove, and the other end of the through hole is used for opening and closing connection to the first outlet hole, and after the two ends of the through hole are respectively connected with the first slot and the first outlet hole, the through hole of the cover plate is connected with the auxiliary material feeding channel and the auxiliary material feeding shoulder groove.

6. The extrusion die head according to claim 5, characterized in that The auxiliary material feeding shoulder groove of at least another auxiliary material channel has a second opening opened on the second side and extending along the second direction, and the cover plate has a first blocking wall extending along the second direction on a side facing the second opening, and the first blocking wall of the cover plate can be opened and closed on the second side to open or close the second opening; wherein, when the second opening and the first blocking wall are closed, another auxiliary material feeding shoulder groove is formed; The second opening has a second outlet hole located on the second side, and the second outlet hole is the outlet hole of another auxiliary material feeding channel.

7. The extrusion die head according to claim 1, wherein The discharge channel includes a premixing zone and a forming zone. The premixing zone is located between the main material feed shoulder groove and the forming zone. The port of the auxiliary material outflow channel facing the discharge channel is located in the premixing zone.

8. The extrusion die head according to claim 7, characterized in that The extrusion die head further includes an extension tube, which is connected to a port of the auxiliary material outflow channel facing the discharge channel, and a port of the extension tube away from the auxiliary material outflow channel is located in the molding area.

9. The extrusion die head according to claim 1, wherein The feed opening of the main material feed channel and the feed openings of the at least two auxiliary material feed channels are arranged along the third direction.

10. The extrusion die head according to claim 1, wherein The feed port of the main material feed channel is located on the central axis of the main material feed shoulder groove in the length direction; and / or The feed port of the auxiliary material feed channel is located on the central axis of the auxiliary material feed shoulder groove in the length direction.

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