Plate body with bionic branch water channels and injection mold

Abstract

The utility model relates to the field of injection molding cooling, in particular to a plate body with bionic branch water channels and a blank injection mold. According to the plate body with the bionic branch water channels, the bionic branch water channels are arranged in the plate body, the bionic branch water channels comprise the lower bionic branch water channel layer and the upper bionic branch water channel layer, and each bionic branch water channel layer is composed of a plurality of bionic branch water channels. The bionic branch water channels comprise a main water channel and a plurality of branch water channels, the main water channel comprises a main water gap and a plurality of main water channel sections which are continuously communicated, and each main water channel section is correspondingly communicated with one branch water channel; the main water channel sections are sequentially communicated in the axial direction, and the diameters of the main water channel sections are gradually reduced in the direction away from the main water gap, so that the effects of improving the fluid transmission efficiency, optimizing the fluid flowing performance, improving the operation simplicity, convenience and reliability, saving energy consumption and prolonging the service life are achieved. According to the blank injection mold, at least one of the mold core plate and the sliding plate is the plate body with the bionic branch water channels.

Description

Technical Field

[0001] This utility model relates to the field of injection molding cooling, specifically to a plate body and injection mold with biomimetic branched water channels. Background Technology

[0002] In the field of fluid transport, traditional cooling channel designs typically employ straight or simple branching structures to distribute and guide fluid. However, these traditional designs have numerous shortcomings, particularly in long-distance transport, efficient distribution, and adaptability to complex application scenarios. Due to a lack of effective optimization of fluid flow paths, traditional cooling channels are subject to flow resistance. The distance between the main channel and the main inlet affects the water pressure, velocity, and flow rate of the cooling water, leading to imbalances in these parameters when cooling water flows into the branch channels. This results in inconsistent cooling capacity provided to different components located at different positions within the mold, ultimately causing variations in product quality. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects and deficiencies of the prior art and provide a plate with a biomimetic branch waterway. The plate adopts a biomimetic branch waterway designed with reference to the fluid transport method in nature, which ensures that even at a position far from the main water inlet, a high water pressure and flow rate can be maintained, thereby enabling the mold to achieve a more uniform cooling effect.

[0004] Another objective of this invention is to provide a preform injection mold that improves cooling performance by using a plate with biomimetic branched water channels, thereby ensuring consistent cooling across all parts of the mold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plate with biomimetic branch waterways, wherein at least one row of biomimetic branch waterways is provided within the plate, the biomimetic branch waterways include a lower layer biomimetic branch waterway and an upper layer biomimetic branch waterway, each layer of biomimetic branch waterways is composed of multiple biomimetic branch waterways; the biomimetic branch waterways include a main waterway and multiple branch waterways, the main waterway includes a main water inlet and multiple continuous main waterway segments, each main waterway segment is connected to a corresponding branch waterway;

[0007] The main waterway sections are connected sequentially along the axial direction, and the diameter decreases segment by segment in the direction away from the main water outlet.

[0008] As a preferred embodiment, the cross-sectional area of ​​each branch waterway is the same, and the cross-sectional area of ​​each segment of the main waterway is equal to the sum of the cross-sectional areas of all its downstream branch waterways.

[0009] As a preferred embodiment, the maximum cross-sectional area of ​​a main waterway segment is equal to the sum of the maximum cross-sectional area of ​​another main waterway segment connected to it and the cross-sectional area of ​​the corresponding connected branch waterway.

[0010] As a preferred option, the branch waterway is connected to the main waterway in sections through a circular arc transition structure.

[0011] As a preferred embodiment, the main channel segment includes a segment body and a segment transition located between adjacent segment bodies, with the segment body and segment transition being coaxially connected sequentially along the fluid transmission direction.

[0012] As a preferred option, the cross-sectional area of ​​the segmented transition gradually decreases along the fluid transport direction between the two segmented main bodies.

[0013] As a preferred embodiment, the lower-level biomimetic branch waterway includes a first lower-level biomimetic branch waterway, multiple intermediate lower-level biomimetic branch waterways, and a last lower-level biomimetic branch waterway arranged sequentially along the length of the plate. The first lower-level biomimetic branch waterway and the last lower-level biomimetic branch waterway are arranged in opposite directions, and the main water outlet serves as the water inlet or outlet of the plate. Among the multiple intermediate lower-level biomimetic branch waterways, every two intermediate lower-level biomimetic branch waterways form a group, and adjacent two intermediate lower-level biomimetic branch waterways are symmetrically arranged and connected through the main water outlet.

[0014] The upper biomimetic branch waterway includes multiple upper biomimetic branch waterways arranged sequentially along the length of the plate; among the multiple upper biomimetic branch waterways, every two upper biomimetic branch waterways form a group, and two adjacent upper biomimetic branch waterways are symmetrically arranged and connected through the main water outlet.

[0015] As a preferred embodiment, the plate body is provided with a plate body component having a cooling flow channel, wherein the branch water channel of the lower biomimetic branch water channel serves as an inlet or outlet water channel connected to one end of the cooling flow channel, and the branch water channel of the upper biomimetic branch water channel serves as an outlet or inlet water channel connected to the other end of the cooling flow channel.

[0016] As a preferred design, multiple lower-level biomimetic branch waterways correspond one-to-one with multiple upper-level biomimetic branch waterways, and multiple branch waterways of each lower-level biomimetic branch waterway correspond one-to-one with multiple branch waterways of each upper-level biomimetic branch waterway.

[0017] A preform mold includes a movable half mold, which has a core plate and a slide plate. The core plate is equipped with a plurality of core structures, and the slide plate is equipped with mold lips corresponding to the core structures. Both the core structures and the mold lips are provided with cooling channels. At least one of the core plate and the slide plate is a plate with biomimetic branched water channels as described above. The branched water channels of the upper biomimetic branched water channels are connected to the inlet or outlet of the cooling channels of the core structures and / or the mold lips. The branched water channels of the lower biomimetic branched water channels are connected to the outlet or inlet of the cooling channels of the core structures and / or the mold lips.

[0018] In summary, this utility model has the following advantages:

[0019] 1. Improve fluid transmission efficiency: By designing each main waterway segment to be connected sequentially along the axial direction away from the main water inlet and with the diameter decreasing segment by segment, energy loss of fluid during long-distance transmission can be effectively reduced, thus improving fluid transmission efficiency; the cross-sectional area of ​​each main waterway segment is equal to the sum of the cross-sectional areas of all its corresponding downstream branch waterways, ensuring the uniformity of fluid distribution, reducing unnecessary turbulence and resistance, and further improving fluid transmission efficiency.

[0020] 2. Optimize fluid flow performance: Branch channels are connected to the main channel or segmented transitions through arc transition structures, which can improve the smoothness of fluid flow, reduce energy loss of fluid at turning points, and thus improve the overall performance of the system.

[0021] 3. Increased ease of operation and reliability: The design of the biomimetic branch water channel connecting the two ends of the cooling channel of the plate component simplifies the installation and maintenance process, and improves the convenience and reliability of use.

[0022] 4. Energy saving: The plate body improves cooling efficiency and reduces energy consumption in cooling water transportation and preparation through optimized design of cooling water channels, thus achieving the goal of energy saving.

[0023] 5. Improve product quality: The plate provides nearly the same cooling capacity at all locations, ensuring uniform cooling of the product at each location and improving the quality and consistency of the injection molded products. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the biomimetic branch waterway structure in the plate body of this utility model;

[0025] Figure 2 This is a perspective view of a plate with a biomimetic branch waterway in one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the water passage in a plate with biomimetic branch waterways in one embodiment of the present invention;

[0027] Wherein: 1: Main waterway; 11: Main water inlet; 12: Main waterway segment; 121: Main body of segment; 122: Segment transition;

[0028] 2: Branch waterway; 3: Slab body;

[0029] 4: Lower layer biomimetic branch waterway; 41: First lower layer biomimetic branch waterway; 411: Main inlet of the first lower layer biomimetic branch waterway; 412: Branch waterway of the first lower layer biomimetic branch waterway; 42: Middle lower layer biomimetic branch waterway; 421: Main inlet of the middle lower layer biomimetic branch waterway; 422: Branch waterway of the middle lower layer biomimetic branch waterway; 43: Last lower layer biomimetic branch waterway; 431: Main inlet of the last lower layer biomimetic branch waterway; 432: Branch waterway of the last lower layer biomimetic branch waterway;

[0030] 5: Upper-level biomimetic branch waterway; 51: Upper-level biomimetic branch waterway; 511: Main water inlet of upper-level biomimetic branch waterway; 512: Branch waterway of upper-level biomimetic branch waterway;

[0031] 6: Panel components. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] It should be noted that in the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. That is, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "connected," "linked," and "hollow" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] like Figures 1 to 3 As shown, a plate with biomimetic branch waterways is provided within the plate. The biomimetic branch waterways include a lower layer and an upper layer. Each layer of biomimetic branch waterways consists of multiple biomimetic branch waterways. The biomimetic branch waterways include a main waterway and multiple branch waterways. The main waterway includes a main water outlet and multiple continuous main waterway segments. Each main waterway segment is connected to a corresponding branch waterway. The main waterway segments are connected sequentially along the axial direction, and their diameters decrease progressively in the direction away from the main water outlet.

[0036] Specifically, such as Figure 1 As shown, the biomimetic branch waterway includes a main waterway and four branch waterways. The main waterway includes a main water inlet and four continuous main waterway segments. The four main waterway segments are connected sequentially along the axial direction, and their diameters decrease gradually in the direction away from the main water inlet. Each main waterway segment is connected to a corresponding branch waterway.

[0037] This design, inspired by biomimetic blood vessels and tree branches, features main channel segments with diameters that are largest near the main inlet and gradually decrease towards the outlet. This ensures similar pressure conditions for the fluid entering each branch channel, resulting in a more uniform flow distribution. It avoids the uneven flow problems that can occur in traditional fixed-diameter designs, guaranteeing efficient delivery of cooling water to the areas requiring cooling. The gradually decreasing diameter of the main channel segments helps maintain cooling water flow velocity, delivering it more quickly and evenly to the terminal branch channels and ensuring each branch channel receives relatively uniform cooling capacity. This results in a more even temperature distribution across the entire mold or equipment surface, improving cooling efficiency and product quality.

[0038] In a preferred embodiment, all main channel segments are coaxially connected. Coaxial connection means that all main channel segments are aligned in a straight line, avoiding local resistance caused by bends and turns. This allows the cooling medium to flow along the shortest path, reducing unnecessary energy loss and improving fluid transport efficiency. The coaxial connection design reduces abrupt changes at the joints, allowing for a smooth transition between segments and reducing the likelihood of turbulence. This not only reduces energy loss but also improves the quality of fluid flow, making the cooling process more efficient and stable.

[0039] Each branch channel has the same cross-sectional area, and the cross-sectional area of ​​each main channel segment is equal to the sum of the cross-sectional areas of all its downstream branch channels. That is, the cross-sectional area of ​​the first branch channel is equal to the cross-sectional areas of the second, third, and fourth branch channels. Starting from the main outlet and moving away from it, the cross-sectional area of ​​the first main channel segment is equal to the sum of the cross-sectional areas of the first, second, third, and fourth branch channels connected sequentially downstream. This ensures a reasonable distribution of flow from the main channel to each branch channel, avoiding overload in some branch channels while other sections experience insufficient flow, and achieving a uniform distribution of fluid among the branches.

[0040] To improve the smoothness of fluid flow, the branch channels are connected to the main channel in sections through a circular arc transition structure. Compared with right-angle connections, this reduces flow resistance and improves transmission efficiency.

[0041] Furthermore, the main channel segment comprises a segment body and segment transitions located between adjacent segment bodies. The segment bodies and segment transitions are coaxially connected sequentially along the fluid transport direction, with the cross-sectional area of ​​each segment body equal to the sum of the cross-sectional areas of all its corresponding downstream branch channels. The cross-sectional area of ​​the segment transition gradually decreases between its preceding and following segment bodies. The coaxial connection between the segment bodies and segment transitions along the fluid transport direction reduces local resistance and turbulence at the connection points, lowers energy loss, and improves fluid transport efficiency. The cross-sectional area of ​​each segment body matches the total cross-sectional area of ​​the downstream branch channels, achieving uniform fluid distribution among the branches.

[0042] The branch waterway is not only directly connected to the main waterway in sections, but also connected to the section transition through an arc transition structure, thereby ensuring that the fluid can smoothly enter the branch waterway.

[0043] like Figure 2 As shown, a plate with biomimetic branch waterways is provided inside the plate. The biomimetic branch waterways include a lower layer biomimetic branch waterway and an upper layer biomimetic branch waterway. Each layer of biomimetic branch waterways is composed of multiple biomimetic branch waterways as described above.

[0044] The lower-level biomimetic branching waterways consist of multiple lower-level biomimetic branching waterways. The main inlets of the lower-level biomimetic branching waterways on both sides of the slab extend through the sides of the slab, serving as inlets or outlets. The lower-level biomimetic branching waterways in the middle are arranged in pairs, each pair connected to each other through a main inlet, and their branching waterways penetrate the top surface of the slab, serving as inlets or outlets. The upper-level biomimetic branching waterways consist of multiple upper-level biomimetic branching waterways. The upper-level biomimetic branching waterways are also arranged in pairs, each pair connected to each other through a main inlet, and their branching waterways similarly penetrate the top surface of the slab, serving as inlets or outlets.

[0045] Specifically, the lower-level biomimetic branch waterway includes a first lower-level biomimetic branch waterway, two middle lower-level biomimetic branch waterways, and a last lower-level biomimetic branch waterway arranged sequentially along the length of the plate.

[0046] The first lower-level biomimetic branch channel is arranged in opposite directions to the last lower-level biomimetic branch channel. The main inlet of the first lower-level biomimetic branch channel extends through the bottom left side of the plate, serving as the water inlet. During the cooling medium inflow stage, the cross-sectional area of ​​the main segment gradually decreases until it is the same as the cross-sectional area of ​​the branch channel. The main inlet of the last lower-level biomimetic branch channel extends through the bottom right side of the plate, serving as the water outlet. During the cooling medium outflow stage, the cross-sectional area of ​​the main segment gradually increases until it is the same as the cross-sectional area of ​​the main channel. In this embodiment, the cross-sectional area of ​​the main segment changes in an orderly manner. The purpose is to balance the distribution of the cooling medium between the branch channel corresponding to the main segment and its downstream main segment, so that the flow rate and pressure distribution of the cooling medium in the branch channels at different positions in the flow direction are more uniform.

[0047] In a preferred embodiment, the maximum cross-sectional area of ​​a main waterway segment is equal to the sum of the cross-sectional areas of another main waterway segment connected to it and the corresponding connected branch waterway. That is, starting from the main outlet and moving away from it, the maximum cross-sectional area of ​​the first main waterway segment is equal to the sum of the cross-sectional areas of the second main waterway segment and the first branch waterway. Similarly, the maximum cross-sectional area of ​​the second main waterway segment is equal to the sum of the cross-sectional areas of the third main waterway segment and the second branch waterway; the maximum cross-sectional area of ​​the third main waterway segment is equal to the sum of the cross-sectional areas of the fourth main waterway segment and the third branch waterway; and the maximum cross-sectional area of ​​the fourth main waterway segment is equal to the cross-sectional area of ​​the fourth branch waterway.

[0048] Two intermediate lower-level biomimetic branch channels form a group, with adjacent intermediate lower-level biomimetic branch channels symmetrically arranged and connected to each other through the main inlet. This symmetrical arrangement helps maintain the stability of fluid flow and reduces local resistance.

[0049] The upper-level biomimetic branch waterway includes four upper-level biomimetic branch waterways arranged sequentially along the length of the plate. Among the four upper-level biomimetic branch waterways, every two upper-level biomimetic branch waterways form a group, and the two adjacent middle upper-level biomimetic branch waterways are symmetrically arranged and connected through the main water inlet.

[0050] The branch channels of the first lower-layer biomimetic branch waterway, the middle lower-layer biomimetic branch waterway, the last lower-layer biomimetic branch waterway, and the upper-layer biomimetic branch waterway all penetrate the top surface of the plate, serving as either inlet or outlet channels. When one layer of biomimetic branch waterway serves as an inlet channel, the corresponding branch channel of the other layer serves as an outlet channel, ensuring a clear and unambiguous fluid path.

[0051] Specifically, the plate body is equipped with a plate body component having cooling channels. The branch channels of the lower layer of biomimetic branch water channels serve as inlet or outlet channels, connecting to the cooling channels at one end of the plate body component. The branch channels of the upper layer of biomimetic branch water channels serve as outlet or inlet channels, connecting to the cooling channels at the other end of the plate body component. This configuration ensures a clear and defined fluid path and also improves cooling efficiency and uniformity.

[0052] Multiple lower-level biomimetic branch waterways correspond one-to-one with multiple upper-level biomimetic branch waterways, and each branch waterway of the lower-level biomimetic branch waterway corresponds one-to-one with the branch waterway of the upper-level biomimetic branch waterway.

[0053] like Figure 3 As shown, in this embodiment, the three plate components form a group. The two ends of the cooling channels of each group of plate components are connected to the upper branch water channel and the lower branch water channel, respectively, which are biomimetic branch water channels. One group of plate components is divided into a first plate component, a second plate component, and a third plate component arranged from left to right along the length of the plate. Each lower biomimetic branch water channel includes a first branch water channel, a second branch water channel, and a third branch water channel arranged in sequence in the direction away from the main water inlet. Each upper biomimetic branch water channel includes a fourth branch water channel, a fifth branch water channel, and a sixth branch water channel arranged in sequence in the direction away from the main water inlet. One end of the cooling channel of the first plate component is connected to the first branch water channel, and the other end is connected to the sixth branch water channel. One end of the cooling channel of the second plate component is connected to the second branch water channel, and the other end is connected to the fifth branch water channel. One end of the cooling channel of the third plate component is connected to the third branch water channel, and the other end is connected to the fourth branch water channel.

[0054] A preform injection mold includes a movable half-mold, which has a core plate and a slide plate. The core plate is fitted with a plurality of core structures, and the slide plate is fitted with mold lips corresponding to the core structures. Both the core structures and the mold lips are provided with cooling channels. At least one of the core plate and the slide plate is a plate with biomimetic branching channels as described above. The branching channels of the upper biomimetic branching channels connect to the inlet or outlet of the cooling channels of the core structures and / or mold lips, and the branching channels of the lower biomimetic branching channels correspond to the outlet or inlet of the cooling channels of the core structures and / or mold lips. This flexible configuration allows for adjustment of the cooling path according to actual needs to achieve the best cooling effect.

[0055] This injection mold significantly improves cooling efficiency and uniformity by introducing a plate with biomimetic branching channels, particularly in the core plate and slide plate.

[0056] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A plate with biomimetic branching waterways, characterized in that: The plate body is equipped with at least one row of biomimetic branch waterways. The biomimetic branch waterways include a lower layer biomimetic branch waterway and an upper layer biomimetic branch waterway. Each layer of biomimetic branch waterways is composed of multiple biomimetic branch waterways. The biomimetic branch waterways include a main waterway and multiple branch waterways. The main waterway includes a main water outlet and multiple continuous main waterway segments. Each main waterway segment is connected to a corresponding branch waterway. The main waterway sections are connected sequentially along the axial direction, and the diameter decreases segment by segment in the direction away from the main water outlet.

2. The plate with biomimetic branching waterways according to claim 1, characterized in that: The cross-sectional area of ​​each branch waterway is the same, and the cross-sectional area of ​​each section of the main waterway is equal to the sum of the cross-sectional areas of all its downstream branch waterways.

3. A plate with a biomimetic branching waterway according to claim 2, characterized in that: The maximum cross-sectional area of ​​a main waterway segment is equal to the sum of the maximum cross-sectional area of ​​another main waterway segment connected to it and the cross-sectional area of ​​the corresponding connected branch waterway.

4. The plate with biomimetic branching waterways according to claim 1, characterized in that: The branch waterways are connected to the main waterway in sections through a circular arc transition structure.

5. A plate with a biomimetic branching waterway according to claim 1, characterized in that: The main waterway segment includes the main segment body and the segment transition located between adjacent main segments. The main segments and the segment transition are coaxially connected sequentially along the fluid transmission direction.

6. A plate with a biomimetic branching waterway according to claim 5, characterized in that: The cross-sectional area of ​​the segmented transition gradually decreases along the fluid transport direction between the two segmented main bodies before and after it.

7. A plate with a biomimetic branching waterway according to claim 1, characterized in that: The lower-level biomimetic branch waterway includes a first lower-level biomimetic branch waterway, multiple intermediate lower-level biomimetic branch waterways, and a last lower-level biomimetic branch waterway arranged sequentially along the length of the plate. The first lower-level biomimetic branch waterway and the last lower-level biomimetic branch waterway are arranged in opposite directions, and the main water outlet serves as the water inlet or outlet of the plate. Among the multiple intermediate lower-level biomimetic branch waterways, every two intermediate lower-level biomimetic branch waterways form a group, and two adjacent intermediate lower-level biomimetic branch waterways are symmetrically arranged and connected through the main water outlet. The upper biomimetic branch waterway includes multiple upper biomimetic branch waterways arranged sequentially along the length of the plate; among the multiple upper biomimetic branch waterways, every two upper biomimetic branch waterways form a group, and two adjacent upper biomimetic branch waterways are symmetrically arranged and connected through the main water outlet.

8. A plate with a biomimetic branching waterway according to claim 7, characterized in that: The plate body is provided with a plate body component with cooling channels. The branch channels of the lower biomimetic branch water channel are connected to one end of the cooling channel as water inlet or water outlet channels, and the branch channels of the upper biomimetic branch water channel are connected to the other end of the cooling channel as water outlet or water inlet channels.

9. A plate with a biomimetic branching waterway according to claim 8, characterized in that: Multiple lower-level biomimetic branch waterways correspond one-to-one with multiple upper-level biomimetic branch waterways, and multiple branch waterways of each lower-level biomimetic branch waterway correspond one-to-one with multiple branch waterways of each upper-level biomimetic branch waterway.

10. A preform injection mold, characterized in that, The device includes a moving half-mold, which is provided with a core plate and a slide plate. The core plate is equipped with a plurality of core structures, and the slide plate is equipped with a mold lip corresponding to the core structure. Both the core structure and the mold lip are provided with cooling channels. At least one of the core plate and the slide plate is a plate with biomimetic branch water channels as described in any one of claims 1-9. The branch water channels of the upper biomimetic branch water channel are connected to the inlet or outlet of the cooling channels of the core structure and / or the mold lip. The branch water channels of the lower biomimetic branch water channel are connected to the outlet or inlet of the cooling channels of the core structure and / or the mold lip.

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