End cover impeller mold of integrated piston cylinder
By integrating the piston cylinder into the end cap impeller mold, the problem of excessive space occupied by the cylinder in traditional molds is solved, achieving efficient cooling and automated control of the mold, and improving production efficiency and injection molding quality.
Patent Information
- Application Number
- CN202520173871.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-24
AI Technical Summary
In traditional hot runner molds, cylinders occupy too much space, resulting in complex mold structures, low cooling efficiency, and impacting production efficiency and product quality.
Design an end cap impeller mold with integrated piston cylinder, integrating the cylinder into the runner plate, controlling the opening and closing of the injection port through the piston and piston rod, reducing the space occupied by the cylinder, increasing the water flow area of the mold core, using a sealed chamber and precise through holes to control the flow of the working medium, and using a tapered hot nozzle and sealing ring to ensure precise control of the injection molding process.
It improves mold cooling efficiency and production efficiency, simplifies mold structure, enhances injection molding quality and automation, and reduces production costs.
Smart Images
Figure CN223720051U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cross flow fan production equipment technical field especially relates to a end cover impeller mould of integrated piston cylinder. BACKGROUND
[0002] In the production process of cross flow fan, the end cover impeller is a key component. Tradually, the end cover impeller is produced by hot runner mould injection process. Such mould usually comprises a front mould assembly and a rear mould assembly. When injection molding, the shaft sleeve assembly is placed in the injection cavity between the front mould assembly and the rear mould assembly, and then the end cover impeller is formed between the front mould assembly and the rear mould assembly.
[0003] However, the traditional hot runner mould has some significant defects in design and use. First, such mould needs to process the position of the cylinder and the outer wall of the cylinder on the runner plate. This design method results in the need to reserve the outer wall and the empty position when the cylinder is installed, so that the cylinder occupies too much space. Secondly, because the cylinder occupies a large amount of space, the water transportation area of the mould core becomes too small. These two problems directly affect the cooling effect and production efficiency of the product. Specifically, the excessive space occupied by the cylinder will make the internal structure of the mould complex, which not only increases the manufacturing difficulty and cost of the mould, but also may affect the overall stability of the mould. And the too small water transportation area of the mould core will significantly reduce the cooling efficiency of the mould. In the injection molding process, rapid and effective cooling is a key factor to ensure product quality and improve production efficiency. Insufficient cooling may cause product deformation, increased internal stress, and even affect the dimensional accuracy and surface quality of the product.
[0004] In view of the above problems, the prior art needs to be improved. SUMMARY
[0005] In order to solve the above problems, the purpose of the utility model is to provide an end cover impeller mould integrated with a piston cylinder, which has the advantage of reducing the space occupied by the cylinder.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] An end cover impeller mould integrated with a piston cylinder, the technical scheme is as follows: comprising a front mould assembly and a rear mould assembly; when the mould is closed, the front mould core of the front mould assembly and the rear mould core of the rear mould assembly combine to form an injection cavity for injection molding of the fan; a piston chamber is constructed in the runner plate of the front mould assembly, a piston is movably arranged in the piston chamber, and a piston rod is connected to the piston; an injection port is constructed on the front mould core for communication with the injection cavity; the injection port is in the axial direction of the piston rod, and the piston moves along the piston chamber to drive the end of the piston rod to open or close the injection port.
[0008] Further, the piston cavity is a sealed cavity, at least two through holes for controlling the entry and exit of working medium are arranged on the inner wall of the sealed cavity; the two through holes are arranged on both sides of the moving direction of the piston.
[0009] Further, a sealing ring is arranged on the piston, and the side surface of the piston is in sliding sealing with the inner wall of the piston cavity.
[0010] Further, a groove is arranged on the lower end surface of the front mold core, and the injection port is located at the bottom of the groove; a hot nozzle for injecting injection material is embedded in the groove, the discharge port of the hot nozzle is communicated with the injection port; the piston rod is arranged in the hot nozzle.
[0011] Further, the discharge end of the hot nozzle is conical.
[0012] Further, the diameter of the hot nozzle is 20 cm.
[0013] As can be seen from the above, the end cover impeller mold integrated with a piston cylinder provided by the application comprises a front mold assembly and a rear mold assembly, a piston cavity is arranged in the flow channel plate of the front mold assembly, a piston is movably arranged in the piston cavity, and a piston rod is connected to the piston, by integrating the gas cylinder into the flow channel plate, the space occupied by the gas cylinder is reduced, the water conveying area of the mold core is increased, and thus the cooling efficiency and the production efficiency are improved, and the advantages of reducing the space occupied by the gas cylinder, increasing the water conveying area of the mold core, and improving the cooling efficiency and the production efficiency are achieved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 FIG. 1 is a schematic view of an end cover impeller mold integrated with a piston cylinder provided by the application.
[0015] Figure 2 FIG. 4 is a schematic view of a hot nozzle provided by the application. DETAILED DESCRIPTION
[0016] The embodiments of the application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the application, and cannot be understood as a limitation of the application.
[0017] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0018] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise stated, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.
[0019] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0020] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and inclined upward of the first feature above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and inclined downward of the first feature below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0021] As Figure 1 And 2As shown, the present embodiment relates to an integrated piston cylinder end cover impeller mold, including a front mold assembly 10 and a rear mold assembly 20. When the mold is closed, the front mold core of the front mold assembly 10 and the rear mold core of the rear mold assembly 20 combine to form an injection cavity 100 for injection molding a wind wheel. A piston chamber 11 is constructed in the runner plate of the front mold assembly 10, and a piston 12 is movably arranged in the piston chamber 11, with a piston rod 13 connected to the piston 12. An injection port 14 is constructed on the front mold core for communication with the injection cavity 100, and the injection port 14 is in the axial direction of the piston rod 13. The piston 12 moves along the piston chamber 11 to open or close the injection port 14 at the end of the piston rod 13. In this scheme, the movement of the piston 12 is linked through the piston rod 13 to accurately control the opening and closing of the injection port 14, thereby achieving automatic control of the injection molding process. This design not only simplifies the control method of the injection port 14, but also improves the automation level and production efficiency of the mold. Further, the piston 12 cylinder is integrated into the runner plate, reducing the space occupied by the piston 12 cylinder, eliminating the need for a reserved outer wall and avoiding the need for a space, allowing the water area on the front mold core to be larger, thereby improving the cooling efficiency. Thus, the technical scheme of the present application controls the opening and closing of the injection port 14 through the movement of the piston 12 and the piston rod 13, solving the problem of excessive space occupied by the cylinder installation and the small water area of the mold core in traditional hot runner molds, and improving the automation level and production efficiency of the mold. Compared with the prior art, the technical scheme of the present application has the advantages of simple structure, accurate control, high cooling efficiency, etc.
[0022] Further, the application also proposes that the piston chamber 11 is a sealed chamber, and at least two through holes 15 for controlling the entry and exit of the working medium are constructed on the inner wall of the sealed chamber, only one is shown in the figure; the two through holes 15 are arranged on both sides of the moving direction of the piston 12. Specifically, the design of the sealed chamber ensures the sealing of the working medium in the chamber to prevent leakage. Two through holes 15 are arranged on the inner wall of the sealed chamber, respectively on both sides of the moving direction of the piston 12, for controlling the entry and exit of the working medium. This design makes the flow of the working medium more accurate, and the flow direction of the working medium in the two through holes 15 can be controlled to control the moving direction of the piston 12, thereby improving the working efficiency and stability of the mold. As a preferred embodiment, the inner wall of the sealed chamber can be processed by high-precision machining process to ensure the accuracy of the position and size of the through hole 15. In addition, the shape and size of the through hole 15 can be optimized according to the specific working medium and flow requirements to achieve the best flow control effect. Thus, the technical scheme of the application effectively solves the technical problems of insufficient sealing of the piston chamber 11 and inaccurate flow control of the working medium through the sealed chamber and the accurately arranged through hole 15. Compared with the prior art, the technical scheme of the application not only improves the working efficiency and stability of the mold, but also simplifies the installation process of the air cylinder, reduces the occupied space, and improves the cooling effect and production efficiency of the mold core.
[0023] Further, the application also proposes that the piston 12 is sleeved with a sealing ring 17, and the side surface of the piston 12 is in sliding sealing with the inner wall of the piston chamber 11. The sealing ring 17 can be made of rubber, polytetrafluoroethylene or other materials with good elasticity and wear resistance to ensure effective sealing during the movement of the piston 12. The cross-sectional shape of the sealing ring 17 can be circular, square or other suitable shapes, and the specific shape can be selected according to the shape of the inner wall of the piston chamber 11 and the sealing requirements. In addition, the sealing ring 17 can be fixed on the piston 12 by interference fit or adhesive to ensure that it does not fall off or shift during the movement of the piston 12. The sliding sealing between the side surface of the piston 12 and the inner wall of the piston chamber 11 can be achieved by precise machining to ensure that the gap between the piston 12 and the inner wall during movement is as small as possible, thereby reducing the leakage of the working medium. The sliding sealing can also be further reduced by coating a low-friction coating on the side surface of the piston 12 or using self-lubricating materials to reduce friction resistance and improve the movement efficiency and sealing effect of the piston 12. Through the above technical means, the sealing ring 17 sleeved on the piston 12 can effectively enhance the sealing between the piston 12 and the inner wall of the piston chamber 11 to prevent leakage of the working medium. The sliding sealing between the side surface of the piston 12 and the inner wall of the piston chamber 11 ensures that the piston 12 maintains stable sealing effect during movement. Through the cooperation of the sealing ring 17 and the sliding sealing, the problem of insufficient sealing between the piston 12 and the inner wall of the piston chamber 11 is solved, and the working efficiency and reliability of the mold are improved.
[0024] Further, the present application also proposes that a groove 18 is constructed on the lower end face of the front mold core, and the injection port 14 is located at the bottom of the groove 18; a hot nozzle 3 for injecting injection material is embedded in the groove 18, the discharge port of the hot nozzle 3 communicates with the injection port 14; the piston rod 13 is arranged in the hot nozzle 3. In this scheme, the construction of the groove 18 makes the installation of the hot nozzle 3 more convenient and accurate, and the communication of the discharge port of the hot nozzle 3 with the injection port 14 ensures that the injection material can be accurately injected into the injection port 14. The piston rod 13 is arranged in the hot nozzle 3, and the opening and closing of the injection port 14 are controlled by the movement of the piston rod 13, so as to realize the accurate control of the injection process. Therefore, through the construction of the groove 18 on the lower end face of the front mold core and the embedding of the hot nozzle 3 in the groove 18, the installation of the hot nozzle 3 is more convenient and accurate, and the opening and closing of the injection port 14 are controlled by the movement of the piston rod 13, so as to realize the accurate control of the injection process. Compared with the prior art, this scheme not only improves the injection efficiency, but also ensures the injection quality, and solves the problem of inaccurate control of the injection port 14 in the traditional mold.
[0025] Further, the discharge end of the hot nozzle 3 is conical. The specific implementation of this design can include that the conical angle can be adjusted according to the flowability of the injection material and the specific requirements of the mold, and the common conical angle range is 30° to 60°. The length of the conical discharge end can also be optimized according to the depth of the injection cavity 100 and the flowability of the injection material. In addition, the surface of the conical discharge end can be polished to reduce the friction resistance of the material during discharge, further improving the flow performance. Specifically, the design of the conical discharge end significantly improves the flow performance of the injection material by reducing the stagnation and blockage of the material at the discharge port. This design enables the injection material to be more uniformly distributed into the injection cavity 100, thereby reducing forming defects such as bubbles and shrinkage holes. Compared with the prior art, the design of the conical discharge end not only improves the quality and efficiency of injection molding, but also simplifies the maintenance and cleaning process of the mold, and reduces the production cost. Therefore, this technical scheme has significant superiority and creativity in practical application.
[0026] Further, the diameter of the hot nozzle 3 is 20 cm. Specifically, by limiting the diameter of the hot nozzle 3 to 20 cm, the present application solves the technical problem that a large diameter of the hot nozzle 3 leads to a complex mold structure and poor cooling effect. The diameter of the hot nozzle 3 in the existing mold is 28 cm, which is optimized to 20 cm in the present application, so that the mold structure is more compact, the space occupied by the hot nozzle 3 is reduced, thereby leaving more space for the water conveying area of the mold core, improving the cooling effect and production efficiency. At the same time, the limitation of the diameter also simplifies the machining and assembly process of the mold, reduces the production cost. Compared with the prior art, the technical scheme of the present application significantly improves the cooling effect and production efficiency of the mold under the premise of ensuring the injection quality, and has obvious technical advantages.
[0027] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0028] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments without departing from the principles and purposes of the present application within the scope of the present application.
Claims
1. An end cap impeller mold of an integrated piston cylinder, comprising a front mold assembly (10) and a back mold assembly (20); when the mold is closed, a front mold core of the front mold assembly (10) and a back mold core of the back mold assembly (20) combine to form an injection molding cavity (100) for injection molding a wind wheel; characterized in that: The flow channel plate of the front mold assembly (10) is provided with a piston chamber (11), the piston chamber (11) is movably provided with a piston (12), the piston (12) is connected with a piston rod (13); the front mold core is provided with an injection port (14) for communicating with the injection cavity (100); the injection port (14) is in the axial direction of the piston rod (13), and the piston (12) moves along the piston chamber (11) to drive the end of the piston rod (13) to open or close the injection port (14).
2. An end cap impeller mold for an integrated piston cylinder according to claim 1, characterized in that: The piston chamber (11) is a sealed chamber, and at least two through holes (15) for controlling the entry and exit of working medium are formed on the inner wall of the sealed chamber; the two through holes (15) are arranged on both sides of the moving direction of the piston (12).
3. An end cap impeller mold for an integrated piston cylinder according to claim 2, characterized in that: The piston (12) is sleeved with a sealing ring (17), and the side surface of the piston (12) is in sliding sealing with the inner wall of the piston chamber (11).
4. An end cap impeller mold for an integrated piston cylinder according to claim 1 or 2 or 3, characterized in that: The lower end surface of the front mold core is provided with a groove (18), and the injection port (14) is located at the bottom of the groove (18); a hot nozzle (3) for injecting injection material is embedded in the groove (18), and the discharge port of the hot nozzle (3) communicates with the injection port (14); the piston rod (13) penetrates the hot nozzle (3).
5. An end cap impeller mold for an integrated piston cylinder according to claim 4, characterized in that: The discharge end of the hot nozzle (3) is conical.
6. An end cap impeller mold for an integrated piston cylinder according to claim 4, characterized in that: The diameter of the hot nozzle (3) is 20 cm.