Impeller integrated forming die

Abstract

The utility model discloses an impeller integrated forming die which comprises a bottom plate, a top plate, a fixing disc, a guide column and a center shaft. A plurality of first guide holes are formed in the bottom plate; the top plate is located above the bottom plate and is parallel to the bottom plate, a sinking groove is formed in the lower end of the top plate, a first through hole is formed in the upper end of the top plate, a second guide hole is formed in the top plate, and an exhaust groove is formed in the bottom face of the top plate. The fixing disc is embedded into the sinking groove, a second through hole corresponding to the first through hole is formed in the fixing disc, a cutting groove is formed in the edge of the bottom face of the fixing disc, and the exhaust groove is communicated with the cutting groove; the guide columns are perpendicular to the bottom plate, each second guide hole is internally provided with one guide column, and one end of each guide column extends into the corresponding first guide hole; two ends of the central shaft are respectively connected with the bottom plate and the top plate. Accurate positioning and stable supporting of the impeller blades and the impeller body in the mold are achieved, the forming precision of the impeller is effectively improved, and the mechanical property of the impeller is improved.

Description

An impeller integral molding mold Technical Field

[0001] This utility model relates to the field of shipbuilding technology, specifically to an integrated impeller molding mold. Background Technology

[0002] In existing yacht impeller manufacturing technologies, traditional molds have the following problems when manufacturing composite material impellers:

[0003] 1. The impeller body and blades are often manufactured separately and then spliced ​​together. The precision of the splicing is difficult to guarantee, resulting in poor overall dynamic balance of the impeller. When rotating at high speed, it is easy to generate vibration and noise, which affects the sailing stability and comfort of the yacht.

[0004] 2. The positioning method is not precise enough. Relying solely on simple clamps or positioning pins, component displacement is prone to occur during the injection of reinforcing resin and fiber composite materials, resulting in large deviations in the dimensional accuracy of the impeller, which cannot meet the high precision requirements of yacht impellers.

[0005] 3. The mold structure is not conducive to the injection and uniform distribution of composite materials. The unreasonable position of the injection port often leads to uneven distribution of materials in the mold, resulting in local bubbles or looseness, which reduces the mechanical properties and service life of the impeller.

[0006] 4. The disassembly and maintenance of the overall mold is inconvenient, which consumes a lot of time and labor costs and affects production efficiency. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this utility model provides an integrated impeller molding mold.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] An integrated impeller molding mold includes a base plate, a top plate, a fixed plate, guide pillars, and a central shaft. The base plate has multiple first guide holes. The top plate is located above and parallel to the base plate, with a recessed groove at its lower end and multiple first through holes communicating with the recessed groove at its upper end. The top plate also has multiple second guide holes corresponding to the first guide holes, and an venting groove extending into the recessed groove is provided on its bottom surface. The fixed plate is embedded in the recessed groove and has second through holes corresponding to the first through holes. A groove is provided on the bottom edge of the fixed plate, and the venting groove communicates with the groove. The guide pillars are perpendicular to the base plate, and each second guide hole contains a guide pillar with one end extending into the first guide hole. The two ends of the central shaft are connected to the base plate and the top plate, respectively.

[0010] In some embodiments, the impeller integral molding mold further includes a first support block and a second support block located between the bottom plate and the top plate and parallel to each other. The lower ends of the first support block and the second support block are detachably connected to the bottom plate, and the upper ends of the first support block and the second support block are detachably connected to the top plate.

[0011] In some embodiments, the first through hole and the second through hole are both circular holes, and there are three of them. The centers of the adjacent first through holes are equidistant from each other.

[0012] In some embodiments, the three first through holes have the same diameter, and the first through hole has the same diameter as the second through hole.

[0013] In some embodiments, the diameter of the first through hole is 12 to 13 mm.

[0014] In some embodiments, the cross-section of the exhaust groove is semi-circular, and the extension line of the exhaust groove intersects the axis of the central axis.

[0015] In some embodiments, the number of exhaust channels is four, and adjacent exhaust channels are perpendicular to each other.

[0016] In some embodiments, the diameter of the venting groove is 3.5 to 5 mm.

[0017] In some embodiments, the upper end of the top plate is provided with a plurality of countersunk holes, and bolts that are threadedly connected to the fixed plate are provided in the countersunk holes.

[0018] In some embodiments, the bottom plate has a first central hole at its center, the top plate has a second central hole at its center, the lower end of the central shaft is inserted into the first central hole, and the upper end of the central shaft is inserted into the second central hole.

[0019] Compared with the prior art, this utility model achieves precise positioning and stable support of impeller blades and impeller body in the mold, effectively improving the molding accuracy of the impeller; by rationally designing the injection port position and the internal structure of the mold, the injection system is optimized, ensuring uniform distribution of composite materials and improving the mechanical properties of the impeller. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a perspective view of an embodiment of the present invention.

[0022] Figure 2 is a front view of an embodiment of this utility model.

[0023] Figure 3 is a cross-sectional view along line AA in Figure 2.

[0024] Figure 4 is a cross-sectional view along line BB in Figure 2.

[0025] Figures 5 and 6 are perspective views of the top plate in an embodiment of this utility model.

[0026] Figures 7 and 8 are perspective views of the fixed plate in an embodiment of this utility model.

[0027] Figure 9 is a structural diagram of the base plate in an embodiment of this utility model.

[0028] Figure 10 is a schematic diagram of the impeller blades and the impeller body after they are fitted together in this utility model.

[0029] Figure 11 is a schematic diagram of the impeller blades and impeller body assembled on the impeller integral molding mold in this utility model.

[0030] Figure 12 is a cross-sectional view of Figure 11.

[0031] The annotations in the attached figures are explained as follows:

[0032] In the figure: 1. Base plate; 11. First guide hole; 12. First center hole; 2. Top plate; 21. Slot; 22. First through hole; 23. Second guide hole; 24. Exhaust slot; 25. Countersunk hole; 26. Second center hole; 3. Fixing plate; 31. Second through hole; 32. Groove; 33. Third center hole; 4. Guide post; 5. Central shaft; 6. First support block; 7. Second support block; 8. Impeller blade; 9. Impeller body. Detailed Implementation

[0033] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0034] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0035] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0037] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0038] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0039] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0040] Referring to Figures 1-12, this utility model provides an integrated impeller molding mold, including a base plate 1, a top plate 2, a fixed plate 3, guide pillars 4, and a central shaft 5. The base plate 1 is rectangular and has four first guide holes 11 located at its four corners. The top plate 2 is located above and parallel to the base plate 1. The lower end of the top plate 2 has a circular recess 21, and the upper end of the top plate 2 has multiple first through holes 22 communicating with the recess 21. The top plate 2 also has multiple second guide holes 23 corresponding to the first guide holes 11, the number of which corresponds to the number of first guide holes 11. The top plate 2 has an exhaust groove 24 extending to the sink 21 on its bottom surface; the fixed plate 3 is embedded in the sink 21, and the fixed plate 3 has a second through hole 31 corresponding to the first through hole 22. The number of second through holes 31 is equal to the number of first through holes 22. The bottom edge of the fixed plate 3 has a groove 32, and the exhaust groove 24 is connected to the groove 32; the guide post 4 is perpendicular to the bottom plate 1, and each second guide hole 23 has a guide post 4, and one end of the guide post 4 extends into the first guide hole 11. The bottom plate 1 can slide relative to the length direction of the guide post 4; the upper and lower ends of the central shaft 5 are connected to the bottom plate 1 and the top plate 2, respectively.

[0041] In practical implementation, the base plate 1 is fixed to the working platform by a pressure plate, and the top plate 2 cooperates with the base plate 1 to press and position the internal components of the mold during the molding process; the guide post 4 and the first guide hole 11 and the second guide hole 23 have a fitting accuracy of H7 / g6. The guide post 4 can ensure high-precision positioning of the top plate 2 and the base plate 1 during the mold closing process, with a positioning accuracy of ±0.05mm; the aforementioned central shaft 5 is made of high-strength alloy steel and the surface is treated with wear resistance to provide rotational support for the impeller; the first through hole 22 and the second through hole 31 form the injection port for injecting reinforced resin and fiber composite materials. Its shape and position are optimized to ensure that the material can fill the internal space of the mold evenly; the fixed plate 3 can achieve precise positioning of the impeller, the top plate 2, and the base plate 1.

[0042] Referring to Figure 1, the impeller integral molding mold also includes a first support block 6 and a second support block 7 located between the base plate 1 and the top plate 2 and parallel to each other. The lower ends of the first support block 6 and the second support block 7 are detachably connected to the base plate 1 by bolts, and the upper ends of the first support block 6 and the second support block 7 are detachably connected to the top plate 2 by bolts. The first support block 6 and the second support block 7 are symmetrically arranged on both sides of the central shaft 5 and close to the edges of the base plate 1 and the top plate 2. The first support block 6 and the second support block 7 are used to assist in fixing the impeller blades 8 and the impeller body 9, preventing displacement during the pouring process and enhancing the stability of the overall mold structure.

[0043] The top plate 2 and support block of this one-piece impeller molding mold are designed to be detachable and connected by bolts, facilitating demolding after impeller molding and cleaning and maintenance of the mold interior. This design significantly reduces mold assembly and disassembly time and improves production efficiency.

[0044] In this invention, the first through hole 22 and the second through hole 31 are both circular holes, and there are three of them. The centers of adjacent first through holes 22 are equidistant; in other words, the line connecting the centers of the three first through holes 22 forms an equilateral triangle. The diameters of the three first through holes 22 are equal, and the diameters of the first through holes 22 and the second through holes 31 are equal. In this invention, the diameter of the first through hole 22 ranges from 12 to 13 mm; in some specific embodiments, the diameter of the first through hole 22 is 12.5 mm.

[0045] In this invention, the cross-section of the venting groove 24 is semi-circular, and the extension line of the venting groove 24 intersects the axis of the central axis 5. There are four venting grooves 24, with adjacent venting grooves 24 perpendicular to each other, and the four venting grooves 24 are radially distributed on the bottom surface of the top plate 2. In this invention, the diameter of the venting groove 24 ranges from 3.5 to 5 mm; in some specific embodiments, the diameter of the venting groove 24 is 4 mm. The venting grooves 24 are used for venting during the injection of reinforcing resin and fiber composite materials, preventing air entrapment during resin injection.

[0046] In order to achieve a detachable connection between the fixed plate 3 and the top plate 2, the upper end of the top plate 2 is provided with three countersunk holes 25, and bolts that are threadedly connected to the fixed plate 3 are provided in the countersunk holes 25.

[0047] To enable quick connection between the central shaft 5 and the base plate 1 and top plate 2, the base plate 1 has a first central hole 12, and the top plate 2 has a second central hole 26. The lower end of the central shaft 5 is inserted into the first central hole 12, and the upper end of the central shaft 5 is inserted into the second central hole 26. The central shaft 5 is tightly fitted with the first central hole 12 and the second central hole 26. Referring to Figure 7, the fixed plate 3 has a third central hole 33 for the central shaft 5 to pass through.

[0048] When using this integrated impeller molding mold, firstly, the pre-made composite material impeller blades 8 and impeller body 9 are fitted together. Then, the central shaft 5 is inserted into the middle of the impeller body 9, and the impeller body 9 is fixed to the fixed plate 3. Then, the fitted impeller blades 8 and impeller body 9 are placed as a whole in the mold and fixed by the bottom plate 1, top plate 2 and support block. During injection, the mixture of reinforcing resin and fiber is injected into the mold from the injection port through a pressure pump.

[0049] The impeller integral molding mold provided by this utility model has a reasonable internal structure design, which can guide the material to fill the gap between the impeller blades 8 and the main body evenly, and flow around the central axis 5, ensuring that the composite material is evenly distributed, reducing the generation of bubbles and looseness, and improving the quality of the impeller.

[0050] This invention employs a unique positioning and support structure. Through the cooperation of the base plate 1, top plate 2, support block, central shaft 5, fixed disk 3, and high-precision guide post 4, precise positioning and stable support of the impeller component within the mold are achieved, effectively improving the molding accuracy of the impeller. By rationally designing the injection port position and the internal structure of the mold, the injection system is optimized, ensuring uniform distribution of the composite material and improving the mechanical properties of the impeller. This invention also incorporates numerous detachable structures, facilitating demolding, cleaning, and maintenance, significantly improving production efficiency and reducing production costs.

[0051] In practice, it has been found that the impeller integral molding mold provided by this utility model can achieve the following beneficial effects:

[0052] 1. By using this mold kit to integrally mold the impeller, the dynamic balance accuracy is improved by 30%, the vibration amplitude is reduced by 40%, and it is more stable when rotating at high speed, effectively improving the stability and comfort of the yacht's navigation;

[0053] 2. The impeller dimensional accuracy deviation is controlled within ±0.1mm, which is a significant improvement compared to traditional processes and can better meet the high-precision design requirements of yacht impellers;

[0054] 3. It makes the distribution of reinforced resin and fiber composite materials more uniform in the mold. After testing, the air bubbles and porosity inside the impeller are reduced by more than 50%, the tensile strength of the impeller is increased by 20%, and the flexural strength is increased by 15%, which significantly enhances the mechanical properties and service life of the impeller.

[0055] 4. The quick assembly and maintenance design of the mold reduces the single assembly and disassembly time by 50%, reduces auxiliary time in the production process, and improves overall production efficiency by more than 35%, which helps to reduce production costs.

[0056] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0057] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A mold for integrally molding an impeller, characterized in that, include: A base plate has multiple first guide holes; a top plate is located above the base plate and parallel to it, with a recessed groove at its lower end and multiple first through holes communicating with the recessed groove at its upper end, and multiple second guide holes corresponding to the first guide holes on the top plate, and an exhaust groove extending to the recessed groove on the bottom surface of the top plate; a fixed plate is embedded in the recessed groove, with a second through hole corresponding to the first through hole on the fixed plate, and a groove on the bottom edge of the fixed plate, with the exhaust groove communicating with the groove; a guide post is perpendicular to the base plate, with a guide post in each of the second guide holes and one end of the guide post extending into the first guide hole; and a central shaft, with its two ends connected to the base plate and the top plate, respectively.

2. The impeller integral molding mold according to claim 1, characterized in that: It also includes a first support block and a second support block located between the bottom plate and the top plate and parallel to each other. The lower ends of the first support block and the second support block are detachably connected to the bottom plate, and the upper ends of the first support block and the second support block are detachably connected to the top plate.

3. The impeller integral molding mold according to claim 1, characterized in that: Both the first through hole and the second through hole are circular holes, and there are three of them. The centers of the adjacent first through holes are equidistant from each other.

4. The impeller integral molding mold according to claim 3, characterized in that: The three first through holes have the same diameter, and the diameter of the first through hole is equal to that of the second through hole.

5. The impeller integral molding mold according to claim 4, characterized in that: The diameter of the first through hole is 12-13 mm.

6. The impeller integral molding mold according to claim 1, characterized in that: The exhaust groove has a semi-circular cross-section, and the extension line of the exhaust groove intersects the axis of the central axis.

7. The impeller integral molding mold according to claim 6, characterized in that: The number of exhaust slots is four, and the adjacent exhaust slots are perpendicular to each other.

8. The impeller integral molding die according to claim 7, characterized in that: The diameter of the exhaust groove is 3.5 to 5 mm.

9. The impeller integral molding mold according to any one of claims 1 to 8, characterized in that: The top plate has multiple countersunk holes at its upper end, and bolts that are threadedly connected to the fixed plate are installed in the countersunk holes.

10. The impeller integral molding mold according to any one of claims 1 to 8, characterized in that: The base plate has a first central hole at its center, the top plate has a second central hole at its center, the lower end of the central shaft is inserted into the first central hole, and the upper end of the central shaft is inserted into the second central hole.

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