Bionic composite die

Abstract

The invention discloses a bionic composite die which comprises an open box body which is detachably connected to a bottom plate of a die frame and is provided with a bottom plate, and the bottom plate is provided with a runner outlet, a runner inlet and an air hole; the combination body is detachably connected in the open box body and comprises an exhaust guide-out piece and a follow-up flow channel, the exhaust guide-out piece is used for exhausting and is provided with an upper end air inlet and a lower end air outlet, the follow-up flow channel is used for heat exchange, and an inlet and an outlet of the follow-up flow channel are in sealed connection with the flow channel outlet and the flow channel inlet respectively; the thin-wall cavity is used for workpiece forming, is placed on the exhaust guide-out piece, is located in the open box body and is provided with a micro exhaust hole group, and the micro exhaust hole group is communicated with an air inlet in the upper end of the exhaust guide-out piece; the packing layer is arranged in the open box body and is used for exhausting air and dissipating heat or used for dissipating heat; the sealing plate is detachably connected to the top of the open box body and used for sealing the part, located on the outer side of the thin-wall cavity, of the upper end opening of the open box body. The production cost is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mold manufacturing, in particular to a bionic composite mold. BACKGROUND

[0002] The modern injection mold is a high-performance mechanical product containing precise and complex cavities, micro-texture and micro-vent groups on the cavity surface, internal cooling and hot cycle runners, and pressure-resistant overall structure. To achieve the complex performance requirements, sand casting, CNC rough machining, cavity engraving, manual bite, electric spark drilling, and runner plate embedding processes are generally required. Not only is the production period long, the texture and vent hole machining efficiency is low, and the pollution is large, but also the plate-type runner plate cannot conformally cool the complex cavity, resulting in low heat exchange efficiency, slow production rhythm, and high energy consumption during the hot and cold cycle process of injection molding production.

[0003] To shorten the production period of injection molds, there are public reports that use precision casting process to replace traditional sand casting, and then cancel the CNC rough machining, cavity engraving, and manual bite processes, but it still cannot get rid of the dependence on electric spark drilling process, and is limited by the principle of casting process. The ability to form high-resolution three-dimensional texture and characters is significantly inferior to engraving. Considering the complex manufacturing process and high cost of precision casting sand mold, its comprehensive ability improvement is limited compared to traditional mold manufacturing process.

[0004] Further, with the development and maturity of metal 3D printing technology, there are public reports that use laser powder bed forming (LPBF) equipment and metal powder additive process to take advantage of the spatial structure of 2D layer-by-layer accumulation forming to complete the composite forming of precise and complex cavities, micro-texture and micro-vent groups on the cavity surface, internal cooling and hot cycle runners, and pressure-resistant overall structure at one time, greatly simplifying the production process of injection molds and realizing one-stop rapid production of core components of injection molds. However, the high-power laser scanning system of the metal laser powder bed forming equipment is expensive, and the laser single-point vector scanning forming speed is still slow compared to the volume of the injection mold, and the unit input capacity is still insufficient. SUMMARY

[0005] In order to overcome the deficiencies in the prior art, the present application provides a bionic composite mold, which has the advantages of reducing production cost and improving production efficiency.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: A bionic composite mold, comprising: An open box body, which is detachably connected to the mold frame bottom plate, has a bottom plate, and the bottom plate is provided with a runner outlet, a runner inlet, and a ventilation hole; The combination body detachably connected in the open box body comprises an exhaust guide and a flow channel, the exhaust guide is used for exhausting and has an upper end air inlet and a lower end exhaust outlet, and the flow channel is used for heat exchange and has an outlet and an inlet which are respectively in sealed connection with the outlet and the inlet of the flow channel. The thin-wall cavity used for workpiece forming is placed on the exhaust guide and located in the open box body, and is provided with a micro exhaust hole group which is in communication with the upper end air inlet of the exhaust guide. The filler layer is arranged in the open box body and is used for exhausting and heat dissipation or heat dissipation. The sealing plate is detachably connected to the top of the open box body and is used for closing the part of the upper end opening of the open box body which is located outside the thin-wall cavity.

[0007] By adopting the above technical scheme, the multiple functional bodies (the open box body, the sealing plate, the thin-wall cavity, the exhaust guide and the flow channel) of the mold can be manufactured separately and then assembled, the manufacturing time and economic cost are relatively low due to the relatively simple structure of each functional body, the production cost can be reduced, and the production efficiency of the mold can be greatly improved; meanwhile, the structure of the exhaust guide and the flow channel can pursue the most strengthened function without considering the limitation of the processing mode, the exhaust and heat dissipation capacity of the mold is greatly improved; in addition, the components can be recycled and the resource waste is reduced due to the detachable connection of each component.

[0008] Optionally, the exhaust guide comprises a plurality of exhaust guide components; the exhaust guide components are provided with a gas permeable structure; the gas permeable structure forms the upper end air inlet upwardly and the lower end exhaust outlet downwardly; the upper end air inlet is located at the upper end of the exhaust guide component; and the lower end exhaust outlet is located at the lower end of the exhaust guide component.

[0009] By adopting the above technical scheme, the exhaust guide is divided into a plurality of exhaust guide components, the gas permeable layer and the heat conduction layer can be filled between the plurality of exhaust guide components, and the exhaust efficiency and the heat dissipation efficiency are improved as a whole.

[0010] Optionally, the exhaust guide component is a tree-shaped bionic bone; the upper end air inlet is located at the end of the branch of the tree-shaped bionic bone; and the lower end exhaust outlet is located at the root of the stem of the tree-shaped bionic bone.

[0011] By adopting the above technical scheme, the stem part of the tree-shaped bionic bone has a smaller volume, and more gas permeable layers or heat conduction layers can be filled, so as to improve the gas permeability and heat conduction efficiency; in addition, the branches of the tree-shaped bionic bone are distributed, which is beneficial to the layout of the flow channel while adapting to the micro exhaust hole group of the thin-wall cavity, so that the relative position of the flow channel and the thin-wall cavity is more reasonable.

[0012] Optionally, the ends of the branches of the tree-shaped bionic bone form a curved surface that matches the shape of the outer surface of the thin-walled cavity.

[0013] By adopting the above technical solution, the curved surface formed between the ends of the branches of the tree-shaped bionic bone matches the shape of the outer surface of the thin-walled cavity, so that the thin-walled cavity has a unique installation, and the possibility of improper installation of the thin-walled cavity is minimized. After the thin-walled cavity is installed, the position is more accurate and stable.

[0014] Optionally, the lower end exhaust port is a circumferential exhaust hole; the filler layer includes a heat-conducting layer on the upper side and a gas-permeable layer on the lower side; the main body of the flow channel is located in the heat-conducting layer; and the lower end exhaust port is located in the gas-permeable layer.

[0015] By adopting the above technical solution, the gas discharged from the thin-walled cavity is discharged from the circumferential exhaust hole-shaped lower end exhaust port after passing through the exhaust guide, and the gas is discharged from the gas-permeable hole of the open box after passing through the gas-permeable layer. This improves the efficiency of gas exhaust.

[0016] Optionally, the heat-conducting layer includes heat-conducting particles, and the heat-conducting particles are filled with a liquid additive.

[0017] By adopting the above technical solution, injecting a liquid additive into the heat-conducting layer can improve the heat transfer performance of the heat-conducting layer, enhance the pressure resistance of the heat-conducting layer, and improve the support rigidity of the thin-walled cavity.

[0018] Optionally, a blocking layer is arranged between the heat-conducting layer and the gas-permeable layer.

[0019] By adopting the above technical solution, the blocking layer blocks the leakage of the liquid additive to the gas-permeable layer, ensuring the porosity of the gas-permeable layer and the exhaust effect.

[0020] Optionally, the gas-permeable layer includes gas-permeable particles or gas-permeable particles and an adhesive filled between the gas-permeable particles.

[0021] By adopting the above technical solution, the gas-permeable layer only includes gas-permeable particles, which is convenient for subsequent recycling; the gas-permeable layer includes gas-permeable particles and an adhesive filled between the gas-permeable particles, which is relatively complex for subsequent recycling, but can provide greater support rigidity.

[0022] Optionally, the lower end exhaust port is located at the bottom of the exhaust guide; the bottom of the exhaust guide is connected to the gas-permeable hole; and the filler layer is a heat-conducting layer.

[0023] By adopting the above technical solution, only the heat-conducting layer needs to be filled in the open box, which simplifies the assembly steps of the mold and reduces the difficulty of recycling the open box and the heat-conducting filler.

[0024] Optionally, a filter element is installed in the gas-permeable hole.

[0025] By adopting the technical scheme, the filter core is provided, which reduces the possibility of accidental loss of the air-permeable particles while ensuring the exhaust. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structure schematic diagram of the mold partially cut open according to the present application.

[0027] Figure 2 is a flow schematic diagram of the manufacturing method according to the present application.

[0028] Figure 3 is a structure schematic diagram of each functional part after step S100 is completed according to the present application.

[0029] Figure 4 is a structure schematic diagram after step S200 is completed according to the present application.

[0030] Figure 5 is a structure schematic diagram after step S300 is completed according to the present application.

[0031] Figure 6 is a structure schematic diagram after step S400 is completed according to the present application.

[0032] Figure 7 is a structure schematic diagram after step S500 is completed according to the present application.

[0033] Figure 8 is a structure schematic diagram after step S600 is completed according to the present application.

[0034] Figure 9 is a structure schematic diagram after step S700 is completed according to the present application.

[0035] Figure 10 is a structure schematic diagram when step S800 is implemented according to the present application.

[0036] BRIEF DESCRIPTION OF DRAWINGS 10, mold frame bottom plate; 20, open box body; 200, first threaded hole; 201, air-permeable hole; 202, flow passage inlet; 203, flow passage outlet; 21, outer flange; 30, accompanying flow passage; 300, quick clamp; 40, tree-shaped bionic bone; 41, bone stem root; 42, bone branch tip; 50, air-permeable layer; 60, blocking layer; 70, heat conduction layer; 80, thin-walled cavity; 800, micro exhaust hole group; 81, inner flange; 90, sealing plate; 900, upper opening; 901, filling port; 902, overflow port; 903, second connecting hole; 904, first connecting hole. DETAILED DESCRIPTION

[0037] The application is further illustrated below in conjunction with the accompanying drawings. Figures 1-10 The application is further illustrated below in conjunction with the accompanying drawings.

[0038] Example One: Disclosed is a bionic composite mold, referring to Figure 1 and Figure 3 The mold is fixed on the mold frame bottom plate 10 by bolts; the mold comprises an open box 20, a sealing plate 90, a thin-walled cavity 80, an exhaust guide and a follow-up runner 30; the open box 20 is in the shape of a rectangular shell with an open upper end and its bottom periphery extends outward to an outer flange 21; the outer flange 21 of the open box 20 is fixed on the mold frame bottom plate 10 by bolts; the bottom plate of the open box 20 is formed with a runner outlet 203, a runner inlet 202 and a ventilation hole 201, and a filter element is installed in the ventilation hole 201 of the thin-walled cavity 80; the runner outlet 203, the runner inlet 202 and the ventilation hole 201 are sealingly connected with the corresponding pipeline interfaces of the mold frame bottom plate 10 one by one; the exhaust guide, the follow-up runner 30 and the thin-walled cavity 80 are located in the open box 20; the sealing plate 90 is used to close the upper end opening of the open box 20 on the part outside the thin-walled cavity 80.

[0039] Reference is made to Figure 1 and Figure 3, the exhaust guide includes four tree-shaped bionic bones 40, and the number of the tree-shaped bionic bones 40 is not limited to four, and can be set according to actual space and requirements; the bottom of the flow channel 30 is fixed on the bottom plate of the open box body 20, and the specific fixing mode can adopt plug-in connection; the outlet and the inlet of the flow channel 30 are in sealed connection with the flow channel outlet 203 and the flow channel inlet 202 of the bottom plate of the open box body 20 respectively; the middle parts of the four tree-shaped bionic bones 40 are inserted and fixed on the flow channel 30, and the specific connection mode can be that a hanging part is arranged on the tree-shaped bionic bone 40, the tree-shaped bionic bone 40 is hung on the flow channel 30 through the hanging part, and in order to improve stability, an adhesive can be filled at the hanging position to complete the connection; the tree-shaped bionic bone 40 is internally provided with a breathable structure, and the breathable structure can be a sponge-like, fiber bundle or other bionic breathable structure; the breathable structure forms an upper end air inlet upwardly and a lower end exhaust outlet downwardly; the upper end air inlet is located at the branch end 42 of the tree-shaped bionic bone 40; the lower end exhaust outlet is located at the trunk root 41 of the tree-shaped bionic bone 40; the thin-walled cavity 80 is placed on the branch end 42 of the four tree-shaped bionic bones 40, the branch ends 42 of the four tree-shaped bionic bones 40 form a curved surface matched with the shape of the outer surface of the thin-walled cavity 80, and the micro-exhaust hole group 800 of the thin-walled cavity 80 is in communication with the upper end air inlet hole; the open box body 20 is internally provided with, from bottom to top, a breathable layer 50, a blocking layer 60 and a heat conduction layer 70, and the breathable layer 50, the blocking layer 60 and the heat conduction layer 70 are filler layers; the flow channel 30 includes a main body and an inflow pipe and an outflow pipe connected with the main body; the cooling liquid sequentially passes through the inflow pipe, the main body and the outflow pipe; the main body of the flow channel 30 is located in the heat conduction layer 70; the sealing plate 90 is fixed on the top of the open box body 20 by bolts and connected with the top of the thin-walled cavity 80 by bolts; the sealing plate 90 is provided with a filling opening 901 and an overflow opening 902.

[0040] Reference Figure 1 and Figure 3 The center of the sealing plate 90 is formed with an upper opening 900 matched with the upper end opening of the thin-walled cavity 80, a plurality of first connecting holes 904 are formed in the edge of the sealing plate 90, a plurality of second connecting holes 903 are formed in the edge of the upper opening 900, and a plurality of first threaded holes 200 matched with the first connecting holes 904 are formed in the top surface of the open box body 20; the upper end edge of the thin-walled cavity 80 outwardly extends an inner flange 81, the existence of the inner flange 81 not only facilitates subsequent connection, but also increases the contact area between the sealing plate 90 and the thin-walled cavity 80, thereby improving the sealing performance; the edge of the sealing plate 90 is in bolt fastening connection with the side wall of the open box body 20, the center is in embedded connection with the inner flange 81 of the thin-walled cavity 80 and is in bolt fastening connection, so that the filler in the open box body 20 is completely sealed.

[0041] The lower end exhaust port is a circumferential exhaust hole, and the air discharged from the thin-walled cavity 80 is discharged into the air-permeable layer 50 through the circumferential exhaust hole and then discharged through the air-permeable hole 201 on the bottom plate of the open box 20. In other embodiments, the lower end exhaust port is located at the bottom of the trunk root 41 of the tree-shaped bionic bone 40, and the bottom of the trunk root 41 of the tree-shaped bionic bone 40 is connected to the air-permeable hole 201 on the bottom plate of the open box 20. The specific connection method can be plug-in, that is, the bottom of the trunk root 41 of the tree-shaped bionic bone 40 is inserted into the corresponding air-permeable hole 201. In this way, the air discharged from the thin-walled cavity 80 is directly discharged through the air-permeable hole 201 on the bottom plate of the open box 20. Accordingly, the open box 20 only needs to be filled with the heat-conducting layer 70, and does not need to be laid with the air-permeable layer 50, thereby simplifying the assembly steps of the mold and reducing the difficulty of recycling the open box 20 and the heat-conducting filler. However, this will result in more heat exchange between the runner 30 and the open box 20 and the mold frame bottom plate 10, so heat insulation measures are taken between the open box 20 and the mold frame bottom plate 10.

[0042] In other embodiments, the exhaust guide can be divided into a plurality of exhaust guide components. The exhaust guide components can be non-tree-shaped, but have air-permeable structures inside, upper end air inlets, lower end air outlets, and hanging parts on the exhaust guide components.

[0043] The air-permeable layer 50 includes air-permeable particles, which can be low-cost, moderate-porosity pressure-resistant mineral particles such as quartz sand, corundum sand, and recycled glass sand.

[0044] The heat-conducting layer 70 includes heat-conducting particles, which can be low-thermal-resistance inorganic crystal particles such as corundum sand, or low-thermal-resistance metal particles such as copper and aluminum. In order to increase the heat-conducting efficiency, liquid additives are injected between the heat-conducting particles to improve the heat-conducting performance of the heat-conducting layer 70, increase the pressure resistance of the heat-conducting layer 70, and improve the support stiffness of the thin-walled cavity 80. The liquid additives can be low-melting-point alloys, high-boiling-point cooling liquids, etc. Common-temperature curing, heat-curing epoxy resin, and silicone grease can also be used to provide higher support stiffness. Accordingly, mold disassembly and standard part recycling need to use heating, dissolution, and other auxiliary means to remove the liquid additive solidification.

[0045] The blocking layer 60 can be a Teflon coating with good sealing performance, a light-curing resin coating, or a heat-curing resin coating to block the leakage of the liquid additive to the air-permeable layer 50 and ensure the porosity and exhaust effect of the air-permeable layer 50.

[0046] In the design process, according to the length, width and height of the mold, the standard box is adapted, the mold is adjusted, the cavity mold of the standard box is obtained by extracting the shell, according to the mechanical flange connection design criterion, the cavity mold is split to obtain the sealing plate mold, the open box mold and the thin-walled cavity mold, and the fastening bolt mold; edit the thin-walled cavity mold, add the micro exhaust hole group according to the injection requirement, and complete the thin-walled cavity mold for additive manufacturing; further, taking the outer wall of the micro exhaust hole group as the starting point, the bionic tree-shaped topological algorithm and the bionic breathable filling algorithm are used to generate the tree-shaped bionic bone mold for additive manufacturing; the bone branch port is connected with the micro exhaust hole group, and the bone stem root 41 is matched with the open box side wall and the bottom plate, thereby positioning the thin-walled cavity; and the micro exhaust hole group is connected and collected to the circumferential exhaust hole of the bone stem root 41 in the open box bottom plate area through the internal breathable organization of the tree-shaped bionic bone; edit the open box mold bottom plate, add the runner inlet 202, the runner outlet 203 and the breathable hole 201 to complete the open box mold for CNC manufacturing; from the runner inlet 202, the profiled runner mold is laid to the runner outlet 203 according to the trend of the thin-walled cavity number, so as to wrap the outside of the thin-walled cavity mold, and at the adjacent tree-shaped bionic bone mold, the middle support is edited and added to perfect the tree-shaped bionic bone mold.

[0047] Example two: disclose the bionic composite manufacturing method of the above-mentioned mold, wherein the bottom of the bone stem root 41 of the four tree-shaped bionic bones 40 is separated from the breathable hole 201 on the bottom plate of the open box 20, and the tree-shaped bionic bone 40 is taken as an example, referring to Figures 2-10 , specifically including the following steps: Step S100, part manufacturing: referring to Figure 3 , the open box 20, the sealing plate 90, the thin-walled cavity 80, the four tree-shaped bionic bones 40 and the following flow channel 30 are manufactured respectively; The manufacturing methods of each functional part are as follows: the sealing plate 90 and the open box 20 are both made by CNC subtractive machining; the thin-walled cavity 80 and the tree-shaped bionic bone 40 are both made by metal LPBF additive manufacturing; the following flow channel 30 is made by copper pipe CNC bending.

[0048] Step S200, assembly of the assembly: referring to Figure 4 , the four tree-shaped bionic bones 40 and the following flow channel 30 are assembled into an assembly; specifically as follows: first, the following flow channel 30 is fixed by using a quick clamp 300, and its attitude is adjusted to be horizontal; the four tree-shaped bionic bones 40 are sequentially connected and assembled to the following flow channel 30; the quick clamp 300 can be a support base with a clamp, which can be stably placed on a plane, and then the inlet end and the outlet end of the tree-shaped bionic bone 40 are clamped by the clamp, so that the position of the whole following flow channel 30 is accurate and stable.

[0049] Step S300, assembly of the combination: refer to Figure 5 Assemble the open box 20 to the mold frame bottom plate 10, move the combination into the open box 20, remove the quick clamp 300, so that the inlet and outlet of the runner 30 are respectively connected to the inlet and outlet of the runner of the bottom plate of the open box 20 respectively; In order to prevent the particles in the subsequent air-permeable layer 50 from flowing out of the air-permeable hole 201 on the bottom plate of the open box 20, a filter element needs to be installed in the air-permeable hole 201 on the bottom plate of the open box 20 in this step.

[0050] Step S400, laying the air-permeable layer 50: refer to Figure 6 Lay the air-permeable layer 50 in the open box 20 to cover the lower end exhaust port of the tree-shaped bionic bone 40; In order to improve its support rigidity, the air-permeable layer 50 needs to be vibrated during laying, and the specific way of vibration is to give the open box 20 and the mold frame bottom plate 10 a certain amount of vibration by means of a vibration device, or not through vibration, but inject adhesive between the air-permeable particles, so that the support rigidity of the air-permeable layer 50 is stronger, but the subsequent air-permeable particle recycling and recycling needs to increase the crushing and screening link.

[0051] Step S500, installation of thin-walled cavity 80: refer to Figure 7 Lay the heat-conducting layer 70 on the air-permeable layer 50 until only the upper ends of the four tree-shaped bionic bones 40 are exposed, place the thin-walled cavity 80 between the branch tips 42 of the four tree-shaped bionic bones 40, and the micro-exhaust holes 800 of the thin-walled cavity 80 are in communication with the upper end air inlets of the four tree-shaped bionic bones 40.

[0052] Step S600, laying the heat-conducting layer 70: refer to Figure 8 Continue to lay the heat-conducting layer 70 until it is flush with the upper end surface of the open box 20; During this process, it needs to be vibrated, and the specific way of vibration is to give the open box 20 and the mold frame bottom plate 10 a certain amount of vibration by means of a vibration device.

[0053] Step S700, installation of the sealing plate 90: refer to Figure 9 Install the sealing plate 90 at the upper end opening of the open box 20; The specific operation is to connect the edge of the sealing plate 90 to the open box 20 by bolts, and to connect the center of the sealing plate 90 to the thin-walled cavity 80 by bolts.

[0054] In order to further improve the heat transfer performance of the heat-conducting layer 70 and improve the pressure resistance of the heat-conducting layer 70, that is, the surface support rigidity of the thin-walled cavity 80, refer to Figure 2 and Figure 10After step S700, there is step S800: filling liquid adjuvant, specifically, injecting liquid adjuvant into the heat-conducting layer 70 through the filling opening 901 on the sealing plate 90 to fill the pores of the heat-conducting layer 70 until the overflow opening 902 on the sealing plate 90 discharges bubble-free liquid adjuvant, and then closing the filling opening 901 and the overflow opening 902 with plugs. In order to block the injected liquid adjuvant from leaking to the air-permeable layer 50 and guarantee the porosity and air exhaust effect of the air-permeable layer 50, in step S400, after the air-permeable layer 50 is laid, a blocking layer 60 is sprayed on the upper surface of the air-permeable layer 50.

[0055] The above are preferred embodiments of the present application, which are not intended to limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A biomimetic composite mold, characterized by: The application relates to a heat exchange device for a mold, which comprises the following parts: an open box (20) which can be detachably connected to a mold frame bottom plate (10) and has a bottom plate and is provided with a flow channel outlet (203), a flow channel inlet (202) and a gas permeation hole (201); a combination which can be detachably connected in the open box (20) and comprises an exhaust gas leading-out part and a following flow channel (30), the exhaust gas leading-out part is used for exhausting gas and has an upper end gas inlet and a lower end gas outlet, the following flow channel (30) is used for heat exchange and its inlet and outlet are respectively in sealing connection with the flow channel outlet (203) and the flow channel inlet (202); a thin-wall cavity (80) which is used for workpiece forming, is placed on the exhaust gas leading-out part and is located in the open box (20), and is provided with a micro exhaust gas hole group (800) which is in communication with the upper end gas inlet of the exhaust gas leading-out part; a filler layer which is arranged in the open box (20) and is used for exhausting gas and heat dissipation or for heat dissipation; and a sealing plate (90) which is detachably connected to the top of the open box (20) and is used for sealing the part of the upper end opening of the open box (20) which is located outside the thin-wall cavity (80). The exhaust gas leading-out part comprises a plurality of exhaust gas leading-out components; the exhaust gas leading-out components are provided with a gas permeation structure; the gas permeation structure forms the upper end gas inlet upwardly and the lower end gas outlet downwardly; the upper end gas inlet is located at the upper end of the exhaust gas leading-out component; and the lower end gas outlet is located at the lower end of the exhaust gas leading-out component. The exhaust gas leading-out component is a tree-shaped bionic bone (40); the upper end gas inlet is located at the end of a branch of the tree-shaped bionic bone (40); and the lower end gas outlet is located at the root of a stem of the tree-shaped bionic bone (40). Curved surfaces which are matched with the shape of the outer surface of the thin-wall cavity (80) are formed between the ends of the branches of all the tree-shaped bionic bones (40). The lower end gas outlet is a circumferential exhaust gas hole; the filler layer comprises an upper heat conduction layer (70) and a lower gas permeation layer (50); the main body of the following flow channel (30) is located in the heat conduction layer (70); and the lower end gas outlet is located in the gas permeation layer (50). The heat conduction layer (70) comprises heat conduction particles; and liquid auxiliary agents are filled between the heat conduction particles.

2. The biomimetic composite mold of claim 1, wherein: A blocking layer (60) is arranged between the heat conduction layer (70) and the gas permeation layer (50).

3. The biomimetic composite mold of claim 2, wherein: The gas permeation layer (50) comprises gas permeation particles or gas permeation particles and adhesives which are filled between the gas permeation particles.

4. The biomimetic composite mold of claim 3, wherein: The lower end gas outlet is located at the bottom of the exhaust gas leading-out part; the bottom of the exhaust gas leading-out part is connected with the gas permeation hole (201); and the filler layer is the heat conduction layer (70).

5. The biomimetic composite mold of claim 1, wherein: A filter core is arranged in the gas permeation hole (201).

6. A biomimetic composite mold according to claim 5, wherein: ​ 7. A biomimetic composite mold according to claim 6, wherein: ​ 8. The biomimetic composite mold of claim 5, wherein: ​ 9. The biomimetic composite mold of claim 1, wherein: ​ 10. The biomimetic composite mold of claim 1, wherein: ​

Images