Multicellular honeycomb profile extrusion components

Abstract

The present invention discloses a porous honeycomb profile extrusion assembly, which includes a flow guide die, a forming die, and a surface die. The flow guide die and the surface die are detachably connected, and the forming die is disposed between the flow guide die and the surface die. The flow guide die is provided with a plurality of first flow guide holes and a plurality of first fixing holes. The flow guide die is fixedly connected to the forming die via the first fixing holes. The extruded profile flows into the forming die through the plurality of first flow guide holes and passes through the forming die to form a porous honeycomb product. The present invention can solve the production problem of large-sized integrated honeycomb products, reduce the difficulty of mold processing, shorten processing time, and save mold production costs.

Description

Technical Field

[0001] The invention relates to the field of molds, and in particular to a porous honeycomb profile extrusion assembly. Background Art

[0002] With the development of aluminum industry technology, the scope of industrial aluminum is constantly expanding. Whether it is the automotive industry, construction industry, environmental protection industry or other industries, industrial aluminum honeycomb products are more or less used.

[0003] Most of the existing aluminum honeycomb products are made by bonding or welding. The finished products have poor dimensional accuracy and low strength, which cannot meet the requirements of precision production. The existing aluminum extrusion honeycomb mold is an integrated structure, but due to the limitations of the honeycomb structure, it can only produce honeycomb products with a width of less than 250mm. In addition, the existing aluminum extrusion honeycomb mold has a long processing cycle, difficult maintenance, and high production cost, resulting in high costs for such products, which is not conducive to mass production. Summary of the Invention

[0004] The purpose of the present invention is to provide a porous honeycomb profile extrusion assembly to solve the problems existing in the above-mentioned prior art.

[0005] In order to solve the above problems, according to one aspect of the present invention, a porous honeycomb profile extrusion assembly is provided, wherein the porous honeycomb profile extrusion assembly includes a flow guide mold body, a forming mold body and a surface mold body, wherein the flow guide mold body and the surface mold body are detachably connected, and the forming mold body is arranged between the flow guide mold body and the surface mold body, wherein the flow guide mold body is provided with a plurality of first flow guide holes and a plurality of first fixing holes, and the flow guide mold body is fixedly connected to the forming mold body through the first fixing holes, and the extruded profile flows into the forming mold body through the plurality of first flow guide holes and passes through the forming mold body to form a porous honeycomb product.

[0006] In one embodiment, the flow guide mold body has a second surface facing the surface mold body and a first surface opposite to the second surface, the second surface is formed with a sinking portion, the multiple first flow guide holes and the multiple first fixing holes are arranged in the sinking portion and extend from the sinking portion to the first surface of the flow guide mold body.

[0007] In one embodiment, a support plate is provided in the sinking portion, and the support plate is connected to the inner wall of the sinking portion through a plurality of connecting portions, and a second guide hole is formed between the plurality of connecting portions.

[0008] In one embodiment, one of the first flow guide holes forms a wider inlet on the first surface of the flow guide mold body and two narrower outlets on the surface of the sinker; preferably, the two narrower outlets have a conical shape or a triangular shape, and the tops of the conical shape or the triangular shape are opposite to each other.

[0009] In one embodiment, the multiple first fixing holes are arranged in m rows along the length direction of the support plate and in n columns along the width direction of the support plate on the support plate, the first fixing holes in the m1th row and the first fixing holes in the m1+1th row are staggered in the column direction, the first fixing holes in the m1th row and the first fixing holes in the m1+2th row are aligned in the column direction, and the first guide holes are arranged between the n1th first fixing hole in the m1th row and the n1th first fixing hole in the m1+2th row, wherein 1≦m1≦m-2, 1≦n1≦n-2, and m and n are integers.

[0010] In one embodiment, the molding mold includes a molding part and a molding plate. The molding plate cooperates with the sunken part of the guide mold and is provided with a molding part hole and a third guide hole. The molding part hole cooperates with the molding part, and the third guide hole cooperates with the first guide hole.

[0011] In one embodiment, the forming mold body also includes a first fixing part, the support plate is also provided with a second fixing hole, and the forming plate is also provided with a third fixing hole. The third fixing hole cooperates with the second fixing hole, and the first fixing part extends into the third fixing hole and the second fixing hole to fix the forming plate and the support plate to each other.

[0012] In one embodiment, the porous honeycomb profile extrusion assembly also includes a second fixing member, the forming member includes a forming head and a forming rod, the upper end of the forming rod is connected to the forming head, and the lower end of the forming rod is provided with a fourth fixing hole, the fourth fixing hole extends along the length direction of the forming rod and cooperates with the second fixing member.

[0013] In one embodiment, the forming rod has a cylindrical body, the outer diameter of which matches the inner diameter of the forming piece hole on the forming plate, wherein the side of the forming rod is provided with a chamfered portion, which extends a certain distance from the end surface of the forming rod toward the forming head.

[0014] In one embodiment, the forming rod is further provided with a detachable stop portion on the outer wall near the lower end, and the inner wall of the forming part hole is provided with a groove that cooperates with the stop portion. The forming part and the flow guide mold body are positioned relative to each other through the cooperation of the stop portion and the groove. Preferably, the stop portions are arranged in two and are symmetrical about the central axis extending along the length direction of the forming rod.

[0015] In one embodiment, two symmetrical grooves are provided in the hole of the forming part, and a matching portion that matches the chamfered portion is provided between the two symmetrical grooves; preferably, the chamfered portion adopts a planar shape processed on the cylindrical surface of the forming rod, and the matching portion also forms a planar shape, thereby closely matching with the chamfered portion.

[0016] In one embodiment, the lower end of each forming rod is accommodated in each forming part hole and is positioned by cooperating with the groove through the stop portion. A gap is formed between each forming head and the adjacent forming head for the profile to flow through. These gaps form a honeycomb shape as a whole, so that the profile forms a honeycomb structure after flowing out of these gaps.

[0017] In one embodiment, the surface mold body has a first surface facing the flow guide mold body and a second surface opposite to the first surface. A recessed portion is provided in the middle of the first surface. The recessed portion cooperates with the sunken portion of the flow guide mold body to form a contoured welding chamber, and the raw material is melted in the contoured welding chamber.

[0018] In one embodiment, a hollow portion is provided in the recessed portion, and the hollow portion extends along the thickness direction of the face mold body and penetrates the entire thickness of the face mold body and forms an opening on the second surface of the face mold body.

[0019] In one embodiment, the hollow portion includes a first part and a second part, the inner diameter of the first part is smaller than the inner diameter of the second part, wherein the inner wall of the first part is provided with a protrusion to cooperate with the forming head, and a gap is formed between the outer wall of the forming head and the inner wall of the protrusion for the profile to flow through.

[0020] In one embodiment, the porous honeycomb profile extrusion assembly also includes a discharge port pad mold, which is detachably connected to the second surface of the face mold body and forms a product outlet in the middle, and the inner diameter of the product outlet is larger than the inner diameter of the second part of the hollow part of the face mold body.

[0021] In one embodiment, the porous honeycomb profile extrusion assembly also includes an expansion mold body, the expansion mold body is provided with a feed port and has a second surface facing the flow guide mold body and a first surface opposite to the second surface, the feed port forms a first opening on the first surface of the expansion mold body and a second opening on the second surface of the expansion mold body, and the diameter of the feed port gradually increases from the first opening to the second opening; preferably, the feed port has a trumpet-shaped structure.

[0022] In one embodiment, the expansion mold body, the flow guide mold body, the surface mold body and the discharge port pad mold have a disc-shaped main body, so that the porous honeycomb profile extrusion assembly has a cylindrical shape, wherein the two contacting surfaces of the expansion mold body, the flow guide mold body, the surface mold body and the discharge port pad mold are positioned with each other by setting pins and pin holes.

[0023] In one embodiment, the two surfaces of the expansion mold body, the flow guide mold body, the surface mold body and the discharge port pad mold that contact each other are positioned and matched with each other by providing a boss on one surface and a circular sunken part on the other surface.

[0024] In one embodiment, the expansion mold body, the flow guide mold body, the surface mold body and the discharge port pad mold are detachably fixed to each other by screws.

[0025] This invention solves the problem of being unable to produce large-scale, integrated honeycomb products. Compared to existing technologies, this invention significantly reduces mold manufacturing difficulty, shortens processing time by more than half, and saves mold production costs. Furthermore, the new structure enables the mold to be recycled multiple times rather than discarded once, while also reducing maintenance difficulties. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional exploded view of the porous honeycomb profile extrusion assembly.

[0027] Figure 2 is a cross-sectional view of a porous honeycomb profile extrusion assembly.

[0028] Figure 3A and Figure 3B These are stereograms of the extended phantom from different perspectives.

[0029] Figure 4A and Figure 4B It is a stereoscopic image of the diversion model from different perspectives.

[0030] Figure 4C yes Figure 4A Magnified view of part A.

[0031] Figure 4D yes Figure 4B Magnified view of part B.

[0032] Figure 5A and Figure 5B It is a three-dimensional exploded view of the molding die from different perspectives.

[0033] Figure 5C and Figure 5D It is a three-dimensional diagram of different visual designs of the formed board.

[0034] Figure 5EIt is a three-dimensional view of an assembly formed by multiple molded parts installed on a molded plate.

[0035] Figure 6A and Figure 6B These are three-dimensional images of the face model from different perspectives. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0037] The porous honeycomb profile extrusion assembly of the present invention is mainly used to produce honeycomb molded products, such as aluminum products and plastic products, to solve the problem that traditional tools cannot produce large-sized porous integrated aluminum honeycomb products. For example, when the porous honeycomb profile extrusion assembly of the present invention is used to process aluminum profiles, the maximum height dimension can be 500mm, the maximum width dimension can be 300mm, and the maximum length dimension can be 6000mm. In addition, the porous honeycomb profile extrusion assembly of the present invention can also solve the problem that the aluminum extrusion mold of traditional tools is difficult to process and has a long production cycle; and solve the problem that such aluminum extrusion molds are difficult to feed and have inconsistent discharge in actual production. It should be noted that the technical solution of the present invention does not need to solve these problems at the same time. In some solutions, one of the above technical problems can be solved. In other solutions, two or three of the above problems can be solved, or other problems can be solved in addition. That is to say, by solving at least one of the above problems, the solution of the present invention has excellent technical effects compared with the prior art.

[0038] The following describes in detail the porous honeycomb profile extrusion assembly of the present invention by taking the production of porous honeycomb aluminum profile products as an example.

[0039] Figure 1 FIG. 1 is a perspective exploded view of the porous honeycomb profile extrusion assembly 100. Figure 1 As shown, the porous honeycomb profile extrusion assembly 100 generally includes a detachable expansion die 10, a flow guide die 20, a surface die 30, a discharge port cushion die 40, and a forming die 50. The flow guide die 20 is arranged between the expansion die 10 and the surface die 30, the surface die 30 is arranged between the flow guide die 20 and the discharge port cushion die 40, and the forming die 50 is arranged inside the flow guide die 20 and the surface die 30. The expansion die 10 is provided with a feed port 11, and the discharge port cushion die 40 is provided with a product outlet 41. The profile enters the porous honeycomb profile extrusion assembly 100 through the feed port 11, and after being extruded and formed by the forming die 50, the product 60 is output from the product outlet 41.

[0040] Figure 2is a cross-sectional view of a porous honeycomb profile extrusion assembly 100, Figure 3A and Figure 3B 10 is a stereogram of the expanded phantom 10 from different viewing angles. Figure 2 、 Figure 3A and Figure 3B As shown, the expansion mold body 10 has a second surface 13 facing the flow guide mold body 20 and a first surface 12 opposite to the second surface 13. The feed port 11 is preferably arranged in the middle of the expansion mold body 10 and extends along the thickness direction of the expansion mold body 10, and forms a first opening 121 on the first surface 12 of the expansion mold body 10 and a second opening 131 on the second surface 13 of the expansion mold body 10. The diameter of the feed port 11 gradually increases from the first opening 121 to the second opening 131. For example, the feed port 11 can be set to a trumpet-shaped structure. The cross-sectional area of ​​the bar with a smaller cross-sectional area increases after passing through the feed port 11 under the compression action of the expansion mold body 10, thereby realizing the production of larger-sized profile products with smaller equipment.

[0041] Continue to refer to Figure 3B In one embodiment, the second surface 13 of the expansion mold 10 is provided with a boss 132. The boss 132 cooperates with the groove on the first surface of the induction mold 20 to position and secure the expansion mold 10, thereby limiting the sliding movement of the expansion mold 10 on the first surface of the induction mold 20. The expansion mold 10 and the induction mold 20 can be further secured to each other by screws and / or pins, for example.

[0042] Specifically, return to reference Figure 2 The expansion mold 10 is secured to the induction mold 20 by inserting a screw from the first surface 11 of the expansion mold 10 through the thickness of the expansion mold 10 and into the interior of the induction mold 20. In one embodiment, pin slots may be provided at corresponding locations on the second surface of the expansion mold 10 and the first surface of the induction mold 20, connecting the expansion mold 10 and the induction mold 20 via pins. Preferably, the expansion mold 10 has a cylindrical profile, with the first surface 12 and the second surface 13 being the upper and lower surfaces of the cylinder, respectively.

[0043] Figure 4A and Figure 4B It is a stereoscopic view of the flow guide mold body 20 from different perspectives. Figure 4C yes Figure 4A An enlarged view of part A of Figure 4D yes Figure 4B An enlarged view of part B is shown in FIG. Figure 4A 、 4BAs shown in 4C and 4D, the flow guide mold body 20 has an overall size that matches the expansion mold body 10 and has a first surface 21 facing the expansion mold body 10 and a second surface 22 facing the surface mold body 30. The second surface 22 is formed with a sinking portion 23, which is provided with a plurality of first fixing holes 232 and a plurality of first flow guide holes 231. The plurality of first fixing holes 232 and the plurality of first flow guide holes 231 extend from the surface of the sinking portion 23 to the first surface 21 of the flow guide mold body 20. In one embodiment, the plurality of first flow guide holes 231 and the plurality of first fixing holes 232 are arranged in a staggered manner within the sinking portion 23.

[0044] In one embodiment, referring to Figure 4B A support plate 233 is provided within the sinking portion 23. The support plate 233 is connected to the inner wall 235 of the sinking portion 23 via a plurality of connecting portions 234. Second guide holes 236 are formed between the plurality of connecting portions 234. In other words, it can be understood that a through hole is formed in the middle portion of the flow guide mold body 20, extending through the first surface 21 and the second surface 22 along the thickness direction of the flow guide mold body 20. The support plate 233 is provided within the through hole and connected to the inner wall of the through hole via the connecting portions 234. One surface of the support plate 233 is flush with the first surface 21 of the flow guide mold body 20, and the other surface of the support plate 233 forms a sinking portion 23 relative to the second surface 22 of the flow guide mold body 20. The depth of the sinking portion 23 is preferably set to be approximately equal to the thickness of the forming plate 53 of the forming mold body 50.

[0045] Reference Figure 4C , which shows the arrangement of the plurality of first fixing holes 232 and the plurality of first guide holes 231, as shown in FIG. Figure 4C As shown, a plurality of first fixing holes 232 are arranged in m rows along the length of the support plate and in n columns along the width of the support plate on the support plate. The first fixing holes 232 in the m1th row are staggered with the first fixing holes 232 in the m1+1th row in the column direction. That is, the n1th first fixing hole 232 in the m1th row and the n1th first fixing hole 232 in the m1+1th row are not arranged in the same column. The first fixing holes 232 in the m1th row and the first fixing holes 232 in the m1+2th row are aligned in the column direction. That is, the n1th first fixing hole 232 in the m1th row and the n1th first fixing hole 232 in the m1+2th row are arranged in the same column. The first air guide hole 231 is arranged between the n1th first fixing hole in the m1th row and the n1th first fixing hole in the m1+2th row. Among them, 1≦m1≦m-2, 1≦n1≦n-2, m and n are natural numbers.

[0046] In one embodiment, referring to Figure 4C and Figure 4DA first flow guide hole 231 forms a relatively wide inlet 2311 on the first surface 21 of the flow guide die 20 and two relatively narrow outlets 2312 on the second surface of the sink 23. In other words, after the profile enters through the inlet 2311 of the first flow guide hole 231, it is divided by the first flow guide hole 231 and then flows out from the two outlets 2312. Preferably, the two relatively narrow outlets 2312 have a conical or triangular shape, with the tops of the conical or triangular shapes facing each other and both fluidically connected to the same inlet 2311.

[0047] In one embodiment, referring to Figures 4A-4D The plurality of first guide holes 231 are arranged in a row along the direction in which the plurality of rows of first fixing holes 232 are arranged. Second fixing holes 237 are provided along the periphery of the support plate 233, that is, around the area where the first guide holes 231 and first fixing holes 232 are arranged. The second fixing holes 237 are used to securely connect the support plate 233 to the forming mold 50, specifically to the forming plate 53 of the forming mold 50. This will be described in further detail below.

[0048] Figure 5A and Figure 5B It is a three-dimensional exploded view of the molding die 50 from different perspectives. Figure 5C and Figure 5D FIG. 1 is a perspective view of a molding plate 53 of a molding die 50 in different configurations, showing two opposite surfaces of the molding plate 53. Figures 5A-5DAs shown, the molding mold 50 includes a molding part 51, a first fixing part (such as a fixing screw) 52 and a molding plate 53. The molding plate 53 is installed in the sinking part 23 of the flow guide mold 20, and has a first surface 531 facing the sinking part 23 and a second surface 532 opposite to the first surface 531. The first surface 531 is in contact with the upper surface of the sinking part 23, and the second surface 532 is preferably flush with the second surface 22 of the flow guide mold 20. That is, the thickness of the molding plate 53 is basically equal to the sinking depth of the sinking part 23. The forming plate 53 is provided with a plurality of forming holes 533, a plurality of third flow guide holes 534, and a third fixing hole 535. The plurality of forming holes 533 cooperate with the forming member 51, the third flow guide holes 534 cooperate with the plurality of first flow guide holes 231 on the flow guide mold body 20, and the third fixing hole 535 cooperates with the second fixing hole 237 on the flow guide mold body 20. When the forming plate 53 is installed in the sinking portion 23, each forming hole 533 is aligned with a first fixing hole 232 on the support plate 233. The lower end of the forming member 51 extends into the forming hole 533. Then, the second fixing member (e.g., a screw) 54 is inserted through the first fixing hole 232 and into the forming member 51 to secure it, thereby positioning and fixing the forming member 51 to the forming plate 53 and the support plate 233. The first flow guide holes 231 are aligned with the third flow guide holes 534. The extruded profile flows through the first flow guide holes 231 to the third flow guide holes 534. The third fixing holes 535 of the forming plate 53 are aligned with the second fixing holes 237 of the support plate 233. The first fixing member (e.g., a screw) 52 is then inserted through the third fixing hole 535 into the second fixing hole 237, thereby further securing the forming plate 53 to the support plate 233. Specifically, the third fixing holes 535 are arranged in two rows extending along the length of the forming plate 53 and are located inside two opposing long sides of the forming plate 53. The plurality of forming member holes 533 and the plurality of third guide holes 534 are arranged between the two rows of third fixing holes 535.

[0049] Continue to refer to Figure 5A and Figure 5B The forming member holes 533 and the third flow guide holes 534 on the forming plate 53 correspond one-to-one with the first fixing holes 232 and the first flow guide holes 231 of the sinking portion 23. In other words, the arrangement and configuration of the forming member holes 533 and the third flow guide holes 534 on the forming plate 53 are identical to the arrangement and configuration of the first fixing holes 232 and the first flow guide holes 231 in the sinking portion 23. Specifically, the inlet and outlet of the third flow guide holes 534 on the forming plate 53 correspond to the outlet 2312 of the first flow guide holes 231 of the sinking portion 23. In other words, the inlet and outlet of the third flow guide holes 534 are substantially the same size and are aligned with the outlet 2312 of the first flow guide holes 231 of the sinking portion 23.

[0050] Continue to refer to Figure 5A and Figure 5B The forming member 51 generally comprises a forming head 511 and a forming rod 512. One end of the forming rod 512 (referred to herein as the upper end) is connected to the forming head 511, and the other end of the forming rod 512 (referred to herein as the lower end) is provided with a fourth fixing hole 5121 on its end surface. The fourth fixing hole 5121 extends a certain distance along the length of the forming rod 512. The lower end of the forming rod 512 is inserted into the forming member hole 533 of the forming plate 53. Then, a second fixing member (e.g., a fixing screw) 54 is inserted through the first fixing hole 232 into the fourth fixing hole 5121 of the forming rod 512, thereby securing the forming member 51 and the forming plate 53 within the sinking portion 23 and securing the forming mold 50 to the flow guide mold 20. In this embodiment, the forming head 511 has a regular hexagonal cross-section for processing honeycomb-shaped products. In one embodiment, the width or outer diameter of the forming head 511 is greater than the inner diameter of the forming member hole 533 of the forming plate 53.

[0051] The forming rod 512 generally has a cylindrical body, the outer diameter of which matches the inner diameter of the forming hole 533 on the forming plate 53. The side of the forming rod 512 is provided with a chamfered portion 5122, which extends from the end surface of the forming rod 512 toward the forming head 511 for a certain distance, preferably extending for more than half the length of the forming rod 512. The forming rod 512 is provided with a stopper 5123 on the outer wall near the lower end. The stoppers 5123 are preferably arranged in two and symmetrically about the longitudinal axis of the forming rod 512. In one embodiment, the chamfered portion 5122 is located between the two stoppers 5123, preferably in the middle between the two stoppers 5123. The two stoppers 5123 are preferably configured to have arc-shaped outer surfaces, and the curvature of the two arc-shaped outer surfaces is preferably configured to be the same. In one embodiment, the height of the two stoppers 5123 along a direction perpendicular to the length of the forming rod 512 is less than the distance between the outer edge of the forming head 511 and the outer wall of the forming rod 512. The inner wall of the forming hole 533 of the forming plate 53 is provided with a groove 5331 that mates with the stoppers 5123 of the forming rod 512. When two symmetrical stoppers 5123 are provided on the forming rod 512, two symmetrical grooves 5331 are also provided within the forming hole 533. A mating portion 5332 is provided between the two grooves 5331 to mate with the chamfered portion 5122. When the chamfered portion 5122 is formed by machining a flat surface on the cylindrical surface of the forming rod 512, the mating portion 5332 also forms a flat surface, thereby tightly mating with the chamfered portion 5122. The stoppers 5123 are then mated and embedded within the grooves 5331. The opening of the groove 5331 is provided on the surface of the forming plate 53 facing the sinking portion 23 (referred to as the lower surface). The groove 5331 extends a certain distance along the thickness direction of the forming plate 53 and corresponds to the position of the stopper 5123 of the forming rod 512. When the lower end of the forming rod 512 is flush with the lower surface of the forming plate 53, the stopper 5123 abuts the bottom of the groove 5331, thereby limiting the position of the forming rod 53. The stopper 5123 is detachably mounted on the forming rod 512. During installation, the lower end of the forming rod 512 is first passed through the forming hole 533 and extended downward a certain distance. Then, the two stoppers 5123 are symmetrically mounted on the sides of the forming rod 512. The forming rod 512 is then withdrawn upward, so that the stoppers 5123 snap into place within the grooves 5331 of the forming hole 533.

[0052] Figure 5E : is a three-dimensional diagram of an assembly formed by installing multiple moldings 51 on a molding plate 53, wherein the third guide hole is not shown. Figure 5EAs shown, a plurality of forming parts 53 are neatly arranged on the forming plate 53, wherein the lower end of the forming rod 512 of each forming part 51 is accommodated in the forming part hole 533 of the forming plate 53 and is positioned by cooperating with the groove 5331 through the stop portion 5123, and a gap is formed between the forming head 511 of each forming part 51 and the adjacent forming head 511 for the profile to flow out. These gaps form a honeycomb shape as a whole, so that the profile forms a honeycomb structure after flowing out of these gaps. Since the gaps are interconnected, the profile forms a porous honeycomb structure after flowing through these gaps.

[0053] Figure 6A and Figure 6B are stereograms of the face mold body 30 from different viewing angles, such as Figure 6A and Figure 6B As shown, the face mold body 30 is generally formed into a disc shape that matches the shape of the expansion mold body 10 and the flow guide mold body 20, and includes a disc-shaped main body 31. The disc-shaped main body 31 has a first surface 311 facing the flow guide mold body 20 and a second surface 312 opposite the first surface 311. An annular protrusion 313 is formed on the outer periphery of the first surface 311. In other words, the height of the first surface 311 is lower than the height of the annular protrusion 313, so that the first surface 311 as a whole is sunken relative to the annular protrusion 313 and cooperates with the protrusion on the second surface 22 of the flow guide mold body 20 to position the flow guide mold body 20 and the face mold body 30 relative to each other. A recessed portion 324 is also provided in the middle of the first surface 311. The recessed portion 324 cooperates with the sunken portion of the flow guide mold body 20 to form a contoured welding chamber. The raw material passes through the first and second guide holes 231, 236 of the flow guide mold body 20 and is melted in the contoured welding chamber. A hollow portion 32 is provided in the recessed portion 324. The hollow portion 32 extends along the thickness direction of the face mold body 30 and penetrates the entire thickness of the face mold body 30 and forms an opening on the second surface 312 of the face mold body 30. Return to reference Figure 2 In one embodiment, the hollow portion 32 includes a first portion 321 and a second portion 322, extending from the first surface 311 toward the second surface 312. The inner wall of the first portion 321 is provided with a protrusion 323 to engage with the forming head 511 of the forming element 51. A gap is formed between the outer wall of the forming head 511 and the inner wall of the protrusion 323 to allow the profile to flow through and form the honeycomb shape. The inner diameter of the second portion 322 is larger than that of the first portion 321, creating a larger space to facilitate the output of the processed product.

[0054] Reference Figure 1-2 The discharge port cushion mold 40 is generally disc-shaped and fits in the face mold body 30. A product outlet 41 is formed in the center. The inner diameter of the product outlet 41 is larger than the inner diameter of the second portion 322 of the hollow portion 32 of the face mold body 30 to facilitate product delivery. The discharge port cushion mold 40 supports pressure and enhances mold strength.

[0055] It should be noted that the expansion die body 10, the flow guide die body 20, the surface die body 30 and the discharge port pad die 40 of the porous honeycomb profile extrusion assembly 100 of the present invention all have a disc shape with approximately the same outer diameter, so that the porous honeycomb profile extrusion assembly 100 forms a cylindrical shape as a whole, wherein the two contacting surfaces of the expansion die body 10, the flow guide die body 20, the surface die body 30 and the discharge port pad die 40 can be positioned with each other by setting a pin and a pin hole, and the two contacting surfaces can be positioned with each other by setting a boss on one surface and a circular sunken portion on the other surface. The various die bodies can be detachably fixed to each other by screws.

[0056] During use, the porous honeycomb profile extrusion assembly 100 is placed on a work surface. The expansion die 10, the flow guide die 20, the face die 30, and the discharge port pad die 40 are connected together using screws and pins. The raw material is then introduced into the expansion die 10 via an external device. The raw material then passes through the first flow guide holes 231 and the second flow guide holes 236 of the flow guide die 20 and is melted in the contour welding chamber. The material is then extruded through the gap between the forming heads 511 and the gap between the inner wall of the first portion 321 of the hollow portion 32 of the mask body 30 and the forming head 511, and then cooled and shaped to produce a qualified product.

[0057] In summary, the porous honeycomb aluminum profile extrusion assembly of the present invention increases the area of ​​the originally smaller cross-section bar by expanding the die, so that larger-sized profile products can be produced with smaller equipment. At the same time, the guide die and the forming die are connected with screws and pins to achieve structural separation, which not only saves processing time but also saves manufacturing costs, greatly reduces the manufacturing difficulty of this type of profile, makes its lateral feeding smoother, and effectively ensures the consistency of the discharge and rate of the aluminum profile during the production process.

[0058] While the preferred embodiments of the present invention have been described in detail above, it should be understood that, after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. Such equivalents also fall within the scope of the claims appended hereto.

Claims

1. A porous honeycomb profile extrusion assembly, characterized in that: The porous honeycomb profile extrusion assembly includes a flow guide die, a forming die and a surface die, the flow guide die and the surface die are detachably connected, and the forming die is arranged between the flow guide die and the surface die, wherein the flow guide die is provided with a plurality of first flow guide holes and a plurality of first fixing holes, the flow guide die is fixedly connected to the forming die through the first fixing holes, and the extruded profile flows into the forming die through the plurality of first flow guide holes and passes through the forming die to form a porous honeycomb product; wherein the flow guide die has a second surface facing the surface die and a first surface opposite to the second surface, the second surface is formed with a sinking portion, the plurality of first flow guide holes and the plurality of first fixing holes are arranged in the sinking portion and extend from the sinking portion to the first surface of the flow guide die; a support plate is provided in the sinking portion, and the support plate is connected to the inner wall of the sinking portion through a plurality of connecting portions, and second flow guide holes are formed between the plurality of connecting portions; The surface mold body has a first surface facing the flow guide mold body and a second surface opposite to the first surface. A recessed portion is provided in the middle of the first surface. The recessed portion cooperates with the sunken portion of the flow guide mold body to form a contoured welding chamber. The forming die includes a forming member and a forming plate. The forming plate cooperates with the sinking portion of the diversion die and is provided with a forming member hole and a third diversion hole. The forming member hole cooperates with the forming member, and the third diversion hole cooperates with the first diversion hole. The forming member includes a forming head and a forming rod. The upper end of the forming rod is connected to the forming head. A gap is formed between each forming head and the adjacent forming head for the profile to flow through. These gaps form a honeycomb shape as a whole. The raw material passes through the first and second guide holes of the guide die body and is melted in the contour welding chamber. Then, it passes through the third guide hole on the forming die body and enters the gap between the forming heads to be extruded. As a result, the profile flows out of these gaps to form a honeycomb structure.

2. The porous honeycomb profile extrusion assembly according to claim 1, characterized in that: One of the first flow guide holes forms a wider inlet on the first surface of the flow guide die body and forms two narrower outlets on the surface of the sinking portion.

3. The porous honeycomb profile extrusion assembly according to claim 2, characterized in that: The two narrower outlets have a conical shape or a triangular shape, the tops of which are opposed to each other.

4. The porous honeycomb profile extrusion assembly according to claim 1, characterized in that: The multiple first fixing holes are arranged in m rows along the length direction of the support plate and in n columns along the width direction of the support plate on the support plate, the first fixing holes in the m1th row and the first fixing holes in the m1+1th row are staggered in the column direction, the first fixing holes in the m1th row and the first fixing holes in the m1+2th row are aligned in the column direction, and the first guide holes are arranged between the n1th first fixing hole in the m1th row and the n1th first fixing hole in the m1+2th row, wherein 1≦m1≦m-2, 1≦n1≦n-2, and m and n are integers.

5. The porous honeycomb profile extrusion assembly according to claim 1, characterized in that: The forming mold body also includes a first fixing part, the support plate is also provided with a second fixing hole, and the forming plate is also provided with a third fixing hole. The third fixing hole cooperates with the second fixing hole, and the first fixing part extends into the third fixing hole and the second fixing hole to fix the forming plate and the support plate to each other.

6. The porous honeycomb profile extrusion assembly according to claim 1, characterized in that: The porous honeycomb profile extrusion assembly further includes a second fixing piece. A fourth fixing hole is provided at the lower end of the forming rod. The fourth fixing hole extends along the length direction of the forming rod and cooperates with the second fixing piece.

7. The porous honeycomb profile extrusion assembly according to claim 1, characterized in that: The forming rod has a cylindrical body, the outer diameter of which matches the inner diameter of the forming piece hole on the forming plate, wherein a chamfered portion is provided on the side of the forming rod, and the chamfered portion extends a certain distance from the end surface of the forming rod toward the forming head.

8. The porous honeycomb profile extrusion assembly according to claim 1, characterized in that: The forming rod is also provided with a detachable stopper on the outer wall near the lower end, and the inner wall of the forming part hole is provided with a groove that cooperates with the stopper, and the forming part and the flow guide mold body are positioned relative to each other through the cooperation of the stopper and the groove.

9. The porous honeycomb profile extrusion assembly according to claim 8, characterized in that: The stoppers are provided in two numbers and are symmetrical with respect to a central axis of the profiled rod extending in the length direction.

10. The porous honeycomb profile extrusion assembly according to claim 7, characterized in that: Two symmetrical grooves are arranged in the hole of the forming part, and a matching portion that matches the chamfered portion is arranged between the two symmetrical grooves.

11. The porous honeycomb profile extrusion assembly according to claim 10, characterized in that: The chamfered portion is in a planar shape processed on the cylindrical surface of the forming rod, and the matching portion is also formed in a planar shape, thereby closely matching with the chamfered portion.

12. The porous honeycomb profile extrusion assembly according to claim 8 or 9, characterized in that: The lower end of each forming rod is accommodated in each forming piece hole and is positioned by the stopper cooperating with the groove.

13. The porous honeycomb profile extrusion assembly according to claim 1, characterized in that: A hollow portion is provided in the recessed portion. The hollow portion extends along the thickness direction of the face mold body and penetrates the entire thickness of the face mold body and forms an opening on the second surface of the face mold body.

14. The porous honeycomb profile extrusion assembly according to claim 13, characterized in that: The hollow portion includes a first part and a second part, the inner diameter of the first part is smaller than the inner diameter of the second part, wherein the inner wall of the first part is provided with a protrusion to cooperate with the forming head, and a gap is formed between the outer wall of the forming head and the inner wall of the protrusion for the profile to flow through.

15. The porous honeycomb profile extrusion assembly according to claim 1, characterized in that: The porous honeycomb profile extrusion assembly also includes a discharge port pad mold, which is detachably connected to the second surface of the face mold body and forms a product outlet in the middle. The inner diameter of the product outlet is larger than the inner diameter of the second part of the hollow portion of the face mold body.

16. The porous honeycomb profile extrusion assembly according to claim 15, characterized in that: The porous honeycomb profile extrusion assembly also includes an expansion mold body, which is provided with a feed port and has a second surface facing the flow guide mold body and a first surface opposite to the second surface. The feed port forms a first opening on the first surface of the expansion mold body and a second opening on the second surface of the expansion mold body, and the diameter of the feed port gradually increases from the first opening to the second opening.

17. The porous honeycomb profile extrusion assembly according to claim 16, characterized in that: The expansion mold body, the flow guide mold body, the surface mold body and the discharge port pad mold have a disc-shaped main body, so that the porous honeycomb profile extrusion assembly has a cylindrical shape, wherein the two contacting surfaces of the expansion mold body, the flow guide mold body, the surface mold body and the discharge port pad mold are positioned with each other by setting pins and pin holes.

18. The porous honeycomb profile extrusion assembly according to claim 16, characterized in that: The two surfaces of the expansion mold body, the flow guide mold body, the surface mold body and the discharge port pad mold that contact each other are positioned and matched with each other by providing a boss on one surface and a circular sinking part on the other surface.

19. The porous honeycomb profile extrusion assembly according to claim 16, characterized in that: The expansion die body, the flow guide die body, the surface die body and the discharge port pad die are detachably fixedly connected to each other by screws.

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