Integrated electricity taking port module shell forming mold and using method

Abstract

The invention relates to the technical field of mold injection molding manufacturing, in particular to an integrated electricity taking port module shell forming mold and a using method thereof.The integrated electricity taking port module shell forming mold comprises a first upper mold, a second upper mold, two sets of lower molds, a rotating disc and a fixed disc, and the first upper mold and the lower molds are matched to form a semi-finished product injection molding cavity used for injection molding of a lifting cover; the first upper mold and the second upper mold are matched to form a finished product injection molding cavity of the mounting ring, the second upper mold and the lower molds are matched to form a finished product injection molding cavity of the mounting ring, the lower molds are all mounted on the rotating disc, the rotating disc drives the lower molds to rotate, and switching is conducted between the first upper mold and the second upper mold. Compared with the prior art, injection molding of the lifting cover and the mounting ring can be respectively completed in the same mold system, and integral hinging of the lifting cover and the mounting ring is ingeniously realized, so that additional connecting parts are completely abandoned, the production process is greatly simplified, manual intervention links are reduced, the labor cost is reduced, and errors and instability caused by manual operation are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of mold injection manufacturing, and in particular to an integrated power port module housing molding mold and a use method thereof. Background Art

[0002] With the continuous development of the automobile industry and the gradual improvement of people's requirements for the quality of automobile interiors, the power port module is a key interface part of the power supply of electronic equipment. The manufacturing process of its shell has a very important impact on the performance, reliability and production efficiency of the entire electronic equipment.

[0003] The traditional production model of power port module housing has long followed the process of molding multiple parts separately and then assembling them. In terms of molds, since corresponding molds need to be made for each individual part, this inevitably leads to a significant increase in mold costs. For example, a more complex power port module housing may include a flip cover, a mounting ring, and some other auxiliary structural parts, so at least three sets of molds need to be designed and manufactured separately. Each set of molds involves a series of complex and expensive links such as material procurement, processing, and debugging, which undoubtedly brings a heavy economic burden to the company.

[0004] From the production process point of view, the separate molding of multiple parts itself consumes a lot of time and manpower. Each part needs to go through independent injection molding, cooling, demoulding and other processes, and it is easy to make operational errors and waste time during the switching and material transfer between different molds. For example, when the molded flip cover is transferred to the assembly area and assembled with the mounting ring, the accuracy of subsequent assembly may be affected due to collision or inaccurate placement during the transportation process.

[0005] In the assembly process, since each component is molded separately, it is difficult to achieve completely consistent dimensional tolerances. Even if the dimensional tolerances are strictly controlled during mold design and manufacturing, the actual size of each component will have certain deviations in the actual production process due to various factors such as raw material characteristics, injection molding process parameter fluctuations, mold wear, etc. When these components with dimensional deviations are assembled, it will be difficult to ensure assembly accuracy. For example, the connection between the flip cover and the mounting ring may have a gap that is too large or the fit is too tight. A large gap may cause dust, water vapor and other impurities to enter the power port module, affecting its electrical performance and service life; a tight fit may cause damage to the components during assembly or cracking due to stress concentration during long-term use.

[0006] In addition, traditional production methods are unable to achieve some special structural designs. With the continuous innovation of electronic devices, the structural and functional requirements for the power port module housing are becoming increasingly diverse. For example, for some electronic devices that need to be opened and closed frequently or have folding functions, the power port module housing may need to adopt an integrated hinged structure to achieve a flexible connection between the flip cover and the mounting ring. However, the traditional method of separate molding and reassembly makes it difficult to accurately construct such an integrated hinged structure, and often requires additional connecting parts and complex assembly processes, which not only increases production costs, but also reduces the overall reliability and aesthetics of the product.

[0007] In summary, the traditional production method of power port module housing has obvious limitations in terms of cost control, production efficiency improvement, product quality assurance and product structure innovation. A new, more efficient and advanced molding mold and usage method is urgently needed to meet the growing needs of the electronic equipment industry. Summary of the invention

[0008] In view of the existing technical problems, the present invention aims to provide an integrated power port module shell molding mold and a method of use. It adopts a special double upper mold and double lower mold with a rotating disk structure, which can complete the injection molding of the flip cover and the installation ring respectively in the same mold system, and cleverly realize the integrated hinge of the two, thereby completely eliminating the additional connecting parts and greatly reducing material costs. At the same time, the precise mold parts work together, such as the clever cooperation of the ejector pin and the slide module, which not only forms the key structure but also facilitates production and demolding, greatly simplifies the production process, reduces manual intervention links, reduces labor costs and avoids errors and instability caused by manual operation. The entire method of use is compact and logically rigorous, from semi-finished product injection molding to station switching, to finished product injection molding and hinge molding until the final demolding process, to achieve efficient, high-quality, low-cost and stable production of integrated power port module shells.

[0009] To achieve the above object, the present invention provides the following technical solutions: An integrated power port module housing forming die, comprising: A first upper die, a second upper die, two sets of lower dies, a rotating plate and a fixed plate; The first upper mold and the second upper mold are respectively arranged opposite to the corresponding lower mold, the first upper mold cooperates with the lower mold to form a semi-finished product injection molding cavity for injection molding the flip cover, and the second upper mold cooperates with the lower mold to form a finished product injection molding cavity for the mounting ring; The first upper mold and the second upper mold are both provided with injection ports at the top, through which injection material A is input into the injection cavity of the semi-finished product for injection molding to form a flip cover, and through which injection material B is input into the injection cavity of the finished product for injection molding to form a mounting ring, and the mounting ring is integrally hinged with the flip cover; The first upper die and the second upper die are both fixedly mounted on the fixed disk, and the two groups of lower dies are symmetrically mounted on the rotating disk. The rotating disk drives the lower dies to rotate and switch between the first upper die and the second upper die.

[0010] As an improvement, a slide module and an ejector pin are provided on the lower mold of each group, and the slide module and the ejector pin are symmetrically arranged on both sides of the semi-finished product injection cavity and the finished product injection cavity, and the ejector pin is connected to the slide module, and the ejector pin extends from the slide module to one side of the semi-finished product injection cavity and the finished product injection cavity.

[0011] As an improvement, the slide module includes a slider and a guide rail, the slider is slidably arranged on the guide rail, the ejector pin is penetrated on the slider, and the slider drives the ejector pin to reciprocate along the length direction of the guide rail; The ejector pin molds the rotating shaft hole on the flip cover at the semi-finished product injection molding cavity, and the ejector pin molds the rotating shaft on the mounting ring at the finished product injection molding cavity.

[0012] As an improvement, a limiting groove is provided on the top surface of the slider, and a pressure block corresponding to the limiting groove is provided on the first upper mold and the second upper mold. The pressure block is arranged in a V-shape, and the limiting groove is arranged in a contour with the pressure block. The limiting groove cooperates with the pressure block to realize the movement of the ejector pin. When the pressure block conflicts with the limiting groove, the ejector pin moves along the moving direction of the slider.

[0013] As an improvement, a first injection channel and a second injection channel are provided in the first upper mold, and the first injection channel and the second injection channel are connected to the semi-finished product injection cavity and the injection port on both sides; a third injection channel is provided in the second upper mold, and the third injection channel is connected to the finished product injection cavity and the injection port on both sides.

[0014] As an improvement, cooling medium channels are provided in the first upper die, the second upper die and the lower die.

[0015] In addition, the present invention also provides a method for using the integrated power port module housing forming mold, comprising the following steps: Step 1, semi-finished product injection molding, injecting the injection molding material A into the semi-finished product injection molding cavity formed by the first upper mold and the lower mold through the injection molding port at the top of the first upper mold, and forming a flip cover after cooling and molding; Step 2: station switching. After the injection molding of the flip cover is completed, the first upper mold is separated from the lower mold, and the driving device of the rotating disk is started. The rotating disk drives the lower mold to rotate 180 degrees, and the lower mold and the flip cover are switched from the semi-finished product injection molding station to the finished product injection molding station, and the lower mold is switched to cooperate with the second upper mold; Step 3: Finished product injection molding and hinge molding: Injection material B is injected into the finished product injection cavity formed by the second upper mold and the lower mold through the injection port at the top of the second upper mold, and a mounting ring is formed after cooling and molding. During the injection molding, the rotating shaft on the mounting ring and the rotating shaft hole on the flip cover are automatically inserted and matched; Step 4: Demolding: After the mold is opened, the finished product is taken out manually or by a robot.

[0016] As an improvement, in step three, the melting point of the injection molding material A of the flip cover is T1, and the melting point of the injection molding material B of the mounting ring is T2, satisfying the condition: T1>T2.

[0017] As an improvement, in the step one, when the flip cover is injection molded, the ejector pin on the lower mold is arranged to abut against the protrusion on the first upper mold, and the moving distance of the ejector pin is L1. In the step three, when the mounting ring is injection molded, the moving distance of the ejector pin is L2, and the length of the rotating shaft on the mounting ring is L3, satisfying the relationship: L1-L2=L3.

[0018] As an improvement, the edge of the contact portion between the rotating shaft hole and the ejector pin on the lower mold is provided with an inclined surface for easy demoulding, and the ejector pin is provided with an inclined guide surface corresponding to the inclined surface, and the inclined surface is arranged in a contour with the inclined guide surface.

[0019] The beneficial effects of the present invention are: (1) The present invention adopts a special structure of double upper molds and double lower molds with a rotating disk, which can complete the injection molding of the flip cover and the installation ring in the same mold system, and cleverly realize the integral hinge connection between the two, thereby completely eliminating additional connecting parts and greatly reducing material costs; at the same time, the precise mold parts work together, such as the clever cooperation of the ejector pin and the slide module, which not only forms the key structure but also facilitates production and demoulding, greatly simplifies the production process, reduces manual intervention links, reduces labor costs, and avoids errors and instabilities caused by manual operation; (2) The present invention is different from the traditional production method that may require multiple sets of molds to manufacture the various components of the power port module housing separately. The integrated mold design of the present invention only requires one set of molds to complete the molding of the entire housing, greatly reducing the procurement, manufacturing, maintenance and storage costs of the molds; (3) The present invention eliminates the assembly process after the multiple components are formed separately, and directly realizes the integral hinged molding in the mold, which greatly shortens the production process. The rotating disk drives the lower mold to switch between the semi-finished product and the finished product injection molding station quickly and accurately, reducing the waiting time in the production process. The cooling medium channel accelerates the cooling and shaping of the product, so that the product can enter the next production link faster, which improves the overall production efficiency, can meet the needs of large-scale production, and improve the production capacity of the enterprise; (4) In the present invention, with the cooperation of the semi-finished product injection cavity and the finished product injection cavity of the mold, as well as the precise control of the slide module and the ejector pin, it can be ensured that the dimensional accuracy of the connection parts of the flip cover and the mounting ring during the molding process strictly meets the design requirements. From the injection molding filling of the material to the entire process of cooling and shaping, each link is under the precise control of the mold, and there will be no dimensional tolerance accumulation problem caused by separate molding and reassembly. When the injection molding material is filled into the connection part, the position and movement distance of the ejector pin are precisely controlled according to the specific parameters and conditions set in the plan, so that the material can be filled and molded evenly and accurately, thereby ensuring that the flip cover and the mounting ring are tightly connected. This tight connection can effectively prevent impurities such as dust and water vapor from entering the interior of the power intake module, ensuring the safe and stable operation of the internal circuit, thereby significantly improving the reliability and stability of the product.

[0020] In summary, the present invention has the advantages of reducing production costs, improving production efficiency, ensuring product quality, and convenient operation, and is particularly suitable for the field of mold injection molding manufacturing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the finished product of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the flip cover of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the mounting ring of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the finished product of the present invention after demoulding; Figure 5 It is a schematic diagram of the three-dimensional structure of the molding die of the present invention; Figure 6 It is a schematic diagram of the use of the molding die of the present invention; Figure 7 It is a top view of the molding die of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the molding die of the present invention; Fig. 9 The three-dimensional structure of the lower mold of the present invention is shown in FIG. Figure 1 ; Fig.10 for Fig. 9 Enlarged view of point A in the middle; Fig.11 The three-dimensional structure of the lower mold of the present invention is shown in FIG. Figure 2 ; Fig.12 for Fig.11 Enlarged view of point B in the middle; Fig.13 It is a cross-sectional schematic diagram of the first upper mold and the lower mold of the present invention; Fig.14 for Fig.13 Enlarged view of point C in the middle; Fig.15 It is a cross-sectional schematic diagram of the second upper mold and the lower mold of the present invention; Fig.16 Schematic diagram of the three-dimensional structure of the first upper mold of the present invention Figure 1 ; Fig.17 for Fig.16 Enlarged view of point D in the middle; Fig.18 for Fig.17 Enlarged view of point E in the middle; Fig.19 It is a schematic diagram of the three-dimensional structure of the second upper mold of the present invention; Fig. 20 for Fig.19 Enlarged view of point F in the middle; Fig.21 It is a schematic diagram of the three-dimensional structure of the first injection channel and the second injection channel; Fig. 22 Schematic diagram of the three-dimensional structure of the first upper mold of the present invention Figure 2 ; Fig.23 It is a schematic diagram of the flow direction of the cooling medium channel in the lower mold of the present invention; Fig.24 It is a schematic diagram of the flow direction of the cooling medium channel in the first upper mold of the present invention; Fig.25 It is a schematic diagram of the flow direction of the cooling medium channel in the second upper mold of the present invention; Fig.26 The present invention is a flowchart of the method of using the power port module housing molding die.

[0022] In the figure: a first upper mold 1, a flip cover 10, a shaft hole 100, a slope 101, a semi-finished product injection cavity 11, an injection port 12, a first injection channel 13, a second injection channel 14, a cooling medium channel 15, a bump 16, a second upper mold 2, a mounting ring 20, a shaft 200, a finished product injection cavity 21, a pressing block 22, a third injection channel 23, a lower mold 3, a slide module 31, a slider 311, a guide rail 312, a limiting groove 313, an ejector pin 32, an inclined guide surface 321, a rotating disk 4, a fixed disk 5, and a mounting hole 51. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] Embodiment 1: like Figure 1-Figure 25 As shown, an integrated power port module housing forming mold includes: A first upper mold 1, a second upper mold 2, two sets of lower molds 3, a rotating plate 4 and a fixed plate 5; The first upper mold 1 and the second upper mold 2 are respectively arranged opposite to the corresponding lower mold 3. The first upper mold 1 cooperates with the lower mold 3 to form a semi-finished product injection cavity 11 for injection molding the flip cover 10, and the second upper mold 2 cooperates with the lower mold 3 to form a finished product injection cavity 21 of the mounting ring 20. This arrangement is based on the principle of injection molding process and provides a basic structural framework for constructing molding chambers at different stages. This upper and lower corresponding arrangement mode enables a closed and specific shape cavity space to be formed when the mold is closed to meet the requirements of injection molding processing; The first upper mold 1 and the second upper mold 2 are both provided with an injection port 12 at the top, and the injection material A is input into the semi-finished product injection cavity 11 through the injection port 12 to form the flip cover 10 by injection molding, and the injection material B is input into the finished product injection cavity 21 through the injection port 12 to form the installation ring 20 by injection molding. The installation ring 20 and the flip cover 10 are integrally hinged and molded. This integral hinged molding method not only ensures the stability and reliability of the connection, reduces the complexity and error source of the subsequent assembly process, but also makes the relative rotation between the installation ring 20 and the flip cover 10 smoother and more flexible during the use of the product, effectively improving the overall performance and service life of the product. This design of integrating different molding chambers into the same mold system reduces the process of mold replacement and product transfer, greatly improves the production efficiency and the stability of product quality, and at the same time reduces the cumulative error and production cost that may be caused by multi-mold processing; The two groups of lower molds 3 are symmetrically installed on the rotating disk 4, and the rotating disk 4 drives the lower mold 3 to rotate. A plurality of groups of connecting blocks are connected to the rotating disk 4, and a plurality of groups of mounting grooves are arranged at the bottom of the lower mold 3. The connecting blocks and the mounting grooves are arranged in a one-to-one correspondence, and switching is performed between the first upper mold 1 and the second upper mold 2. After completing the injection molding of the semi-finished product, the rotating disk 4 can smoothly rotate the lower mold 3 from the semi-finished product injection molding station to the finished product injection molding station according to the preset program and angle. In this process, the positioning system of the mold ensures the accuracy of the lower mold 3 when switching between the two stations, and avoids problems such as poor mold closing and dimensional deviation of the injection molded product caused by station switching errors. Through this automated station switching method, the production cycle is greatly shortened, the production efficiency is improved, and the uncertainty and erroneous operation that may be caused by manual intervention are reduced, making the entire mold system more suitable for large-scale and high-precision industrial production needs, and providing a strong guarantee for product quality consistency and production stability.

[0027] Further, the first upper mold 1 includes a first bottom plate, a first connecting plate, a first cavity plate and a first guide column, the first bottom plate, the first connecting plate and the first cavity plate are connected in sequence, the first bottom plate is connected to the fixed plate 5, the first cavity plate is provided with a first mold core, the first guide column is connected to the first connecting plate, the first guide column is provided at the four corners of the first connecting plate, and the first guide column is passed through the first cavity plate; Furthermore, the second upper mold 2 includes a second bottom plate, a second connecting plate, a second cavity plate and a second guide column, the second bottom plate, the second connecting plate and the second cavity plate are connected in sequence, the second bottom plate is connected to the fixed plate 5, a second mold core is arranged on the second cavity plate, the second guide column is connected to the second connecting plate, the second guide column is arranged at the four corners of the second connecting plate, and the second guide column is passed through the second cavity plate; It should be further explained that the first upper mold 1 and the second upper mold 2 are both provided with temperature control box wire connectors. The temperature control box is connected to the wire connectors of the upper molds to monitor and adjust the temperature of the first upper mold 1 and the second upper mold 2 in real time, which can effectively reduce the deformation, warping, surface defects and other problems of the product. In addition, the appropriate mold temperature can reduce the thermal stress of the mold and reduce the wear and deformation of the mold during repeated heating and cooling. In addition, the stable mold temperature helps to shorten the injection molding cycle. When the mold temperature is controlled within an appropriate range, the cooling time of the plastic in the mold can be more accurately predicted and controlled, thereby optimizing the entire injection molding production process and improving production efficiency.

[0028] It should be noted that the two groups of lower molds 3 include a third bottom plate, two groups of mold feet, a third cavity plate and a spring. The third bottom plate, the two groups of mold feet and the third cavity plate are connected in sequence. A mounting groove is opened on the third bottom plate. The third bottom plate is connected to the rotating disk 4 through the mounting groove. A first support plate and a second support plate are arranged between the mold feet on both sides. The third bottom plate, the first support plate and the second support plate are connected in sequence. The three are connected to each other to form a stable internal support structure. A support rod is connected to the first support plate. The two ends of the support rod are respectively passed through the second support plate and the third cavity plate. This structure is designed The design not only enhances the structural strength of the entire lower mold in the vertical direction, but also a spring is sleeved on the support rod, and the spring is arranged between the second support plate and the third cavity plate. The spring sleeved on the support rod and located between the second support plate and the third cavity plate gives the lower mold a certain elastic buffering capacity. During the mold closing and opening process, when subjected to external force impact or slight collision between mold parts, the spring can effectively absorb and disperse energy to avoid damage to the mold parts due to rigid collision. At the same time, it also helps to ensure the uniform distribution and stable transmission of pressure during the molding process, thereby improving the molding quality and consistency of the product.

[0029] In addition, before mold closing, the spring is in a natural state, at which time the spring is not in conflict with the third cavity plate. When the mold closing process is started, as the upper mold gradually moves downward and applies pressure to the third cavity plate, the third cavity plate begins to move downward along the support rod until both ends of the spring are in conflict with the second support plate and the third cavity plate. During the mold closing process, the spring begins to be gradually compressed. The reaction force generated by the spring can, on the one hand, buffer and decelerate the downward movement of the third cavity plate, thereby avoiding violent collisions between the third cavity plate and other components due to rapid mold closing and protecting the integrity of the mold structure. On the other hand, the elastic force of the spring will also act evenly on the third cavity plate, which helps to ensure uniform distribution of pressure inside the cavity after mold closing is completed, thereby improving the molding quality and consistency of the product and reducing product defects caused by uneven pressure.

[0030] Among them, the first upper mold 1 and the second upper mold 2 are both fixedly installed on the fixed plate 5, and the two are distributed in a specific layout on the fixed plate 5 to ensure that they can cooperate with each other during the injection molding process to achieve accurate construction of the mold cavity. A mounting hole 51 is opened on the fixed plate 5 corresponding to the injection port 12, and its function is to provide a stable and accurate installation foundation for the injection port 12, to ensure that the injection material can smoothly and accurately enter the mold cavity through the injection port 12, and avoid the occurrence of injection material leakage, poor flow and other undesirable phenomena.

[0031] Further, each group of the lower mold 3 is provided with a slide module 31 and an ejector pin 32, which are symmetrically arranged on both sides of the semi-finished product injection cavity 11 and the finished product injection cavity 21. The slide module 31 and the ejector pin 32 are symmetrically distributed on both sides of the semi-finished product injection cavity 11 and the finished product injection cavity 21. The ejector pin 32 plays a vital role in the product molding process and focuses on promoting the precise molding of the specific structure of the product. For the molding of the shaft hole 100 on the flip cover 10, the ejector pin 32 can effectively guide and control the flow and distribution of the plastic melt inside it. In the melt filling stage, the ejector pin 32 can be used as an internal support structure to ensure that the shape and dimensional accuracy of the shaft hole meet the design requirements. At the same time, the gap formed between the ejector pin 32 and the mold cavity wall can accurately define the wall thickness of the shaft hole, so that the wall thickness of the shaft hole after molding is uniform and consistent, avoiding the defects of local excessive thickness or excessive thinness, thereby ensuring the structural strength and reliability of the shaft hole 100 in the subsequent use process; Similarly, when the rotating shaft 200 of the mounting ring 20 is formed, the ejector pin 32 also plays an indispensable role. It shapes and finalizes the melt at the rotating shaft 200 by cooperating with other parts of the mold. In the early stage of melt injection, the ejector pin 32 can help stabilize the flow front of the melt so that it can be evenly filled into the cavity area of ​​the rotating shaft 200 to avoid molding defects such as melt overflow. As the melt is further filled and cooled and solidified, the ejector pin 32 continues to apply appropriate pressure or maintains a specific position to assist the rotating shaft 200 in forming an accurate shape and good cylindricity. This fine control of the molding process of the rotating shaft 200 can ensure that it can be smoothly hinged with the rotating shaft hole on the flip cover 10 in subsequent assembly and use, thereby improving the overall mechanical properties and service life of the product. In addition, due to the symmetrical arrangement of the slide module 31 and the ejector pin 32, it is possible to ensure that the molding operations performed simultaneously in the two injection cavities have a high degree of consistency and stability. The ejector pins 32 on both sides can work together under the control of the same process parameters, effectively avoiding product molding differences caused by unilateral force or uneven control, further improving the stability and repeatability of product quality, and ensuring that the molding quality of the shaft hole 100 and the shaft 200 of each production batch of the integrated power port module housing can be highly consistent, meeting the strict requirements for product precision and quality in large-scale production.

[0032] It should be noted that the symmetrical layout plays a key supporting and balancing role. In the long-term injection molding production cycle, the mold is frequently subjected to various external forces such as mold opening and closing impact, injection pressure and demolding force. The symmetrical setting of the slide module 31 and the ejector pin 32 can evenly disperse these external forces to the frame structure on both sides of the mold, avoiding structural damage such as deformation, cracking or component misalignment of the mold frame due to excessive force on one side, greatly extending the service life of the mold and reducing the cost of mold maintenance and replacement.

[0033] Furthermore, the ejector pin 32 is connected to the slide module 31, and the ejector pin 32 extends from the slide module 31 to one side of the semi-finished product injection cavity 11 and the finished product injection cavity 21. A limit block is also provided on the lower mold 3, and the ejector pin 32 is passed through the limit block. The slide module 31 and the limit block can ensure that the ejector pin 32 always maintains an accurate direction during the telescopic movement without deviation or shaking, thereby providing stable and reliable internal support and shaping conditions for product molding.

[0034] Furthermore, the slide module 31 includes a slider 311 and a guide rail 312, the slider 311 is slidably arranged on the guide rail 312, and the ejector pin 32 is penetrated on the slider 311, so as to ensure that the ejector pin 32 can be vertically and firmly installed on the slider 311, and when the slider 311 reciprocates, there will be no relative displacement or looseness between the two, thereby ensuring effective transmission of force, and the slider 311 drives the ejector pin 32 to reciprocate along the length direction of the guide rail 312; The ejector pin 32 forms the shaft hole 100 on the flip cover 10 at the semi-finished product injection molding cavity 11 , and the ejector pin forms the shaft 200 on the mounting ring 20 at the finished product injection molding cavity 21 .

[0035] It should be further explained that a limiting groove 313 is provided on the top surface of the slider 311, and a pressing block 22 corresponding to the limiting groove 313 is provided on the first upper mold 1 and the second upper mold 2. The pressing block 22 is V-shaped, and the limiting groove 313 is configured to imitate the pressing block 22. The limiting groove 313 cooperates with the pressing block 22 to realize the movement of the ejector pin 32. When the pressing block 22 conflicts with the limiting groove 313, the ejector pin 32 moves along the moving direction of the slider 311. The existence of the limiting groove 313 provides a guide and limiting reference for the movement of the slider 311, and the pressing block 22 is V-shaped. This special shape design has unique functional advantages. The V-shaped structure enables the pressing block 22 to exert force on the limiting groove 313 from two opposite directions when cooperating with the limiting groove 313. The force is applied during the actual mold movement process, when the mold is closed, as the first upper mold 1 and the second upper mold 2 gradually approach the lower mold 3, the pressing block 22 also approaches the limiting groove 313 and finally conflicts with it. When conflicting, due to the shape of the pressing block 22 and the conformal fit with the limiting groove 313, the pressing block 22 will apply a component force along the moving direction of the slider 311 to the limiting groove 313, and this component force is transmitted to the slider 311 through the limiting groove 313, thereby driving the slider 311 to move along the length direction of the guide rail 312, and the ejector pin 32 inserted on the slider 311 will also move synchronously with the movement of the slider 311, and its moving direction can be accurately limited to the straight line direction determined by the guide rail 312, thereby avoiding the ejector pin 32 from being skewed, stuck, and other undesirable conditions that affect product molding or demolding.

[0036] In addition, the first upper mold 1 is provided with a first injection channel 13 and a second injection channel 14, the first injection channel 13 and the second injection channel 14 are connected to the semi-finished product injection cavity 11 and the injection port 12 on both sides, and the second upper mold 2 is provided with a third injection channel 23, the third injection channel 23 is connected to the finished product injection cavity 21 and the injection port 12 on both sides, the first injection channel 13, the second injection channel 14 and the third injection channel 23 are respectively connected to the semi-finished product injection cavity 11, the finished product injection cavity 21 and the injection port 12 on both sides. , which aims to ensure that the plastic melt injected from the injection port 12 can flow to the semi-finished product injection cavity 11 and the finished product injection cavity 21 on both sides simultaneously, equally and stably, to avoid the situation where one side of the cavity is filled too quickly and the other side is filled too slowly due to uneven melt distribution. During the injection molding process, if the melt is unevenly distributed, the product on one side may have problems such as local material shortage, inconsistent density or dimensional deviation in different parts of its structure due to differences in melt arrival time and amount during molding, affecting the overall quality and performance of the product.

[0037] Furthermore, when the melt flows along the first injection channel 13 and the second injection channel 14 to the semi-finished injection cavity 11 on both sides, and flows along the third injection channel 23 to the finished injection cavity 21 on both sides, the pointed structure at the rear end of the channel is like a guiding closing device. The pointed shape can make the melt gradually converge in the process of approaching the injection cavity, and the flow rate in this area will be correspondingly increased, which helps to inject the melt more accurately and concentratedly into the target area in the injection cavity. In addition, the pointed structure allows the excess injection material to form a relatively independent and regularly shaped residual form at the rear end of the pipe, usually similar to a small conical or pyramidal protrusion. This regular shape facilitates the operator to perform removal operations.

[0038] It should be noted that the first upper mold 1, the second upper mold 2, and the lower mold 3 are all provided with a cooling medium channel 15, and the cooling medium channel 15 is provided around the semi-finished product injection cavity 11 and the finished product injection cavity 21, and the cooling medium channel 15 includes an inlet and an outlet, and the cooling medium flows in from the inlet and flows out from the outlet; Two groups of cooling medium channels 15 are provided in the first upper mold 1, one group of cooling medium channels 15 is provided in the connecting plate of the first upper mold 1, and the inlet and outlet of the cooling medium channels 15 are provided on the same side, and the other group of cooling medium channels 15 penetrates the cavity plate of the first upper mold 1, and the inlet and outlet of the cooling medium channels 15 are provided on both sides of the cavity plate respectively; The cooling medium channel 15 in the second upper mold 2 is disposed in the cavity plate of the second upper mold 2, and the inlet and outlet of the cooling medium channel 15 are disposed on the same side; Two groups of cooling medium channels 15 are provided in the lower mold 3 , and the inlet and outlet of the cooling medium channels 15 are respectively provided on both sides of the cavity plate of the lower mold 3 .

[0039] The cooling medium channel 15 takes away heat through the circulation of cooling medium, maintains the stable working temperature of the mold, balances the temperature of each part, avoids local overheating or overcooling, makes the product evenly cooled, reduces deformation and warping, eliminates internal stress, improves surface quality, and ensures product shape, dimensional accuracy and mechanical properties.

[0040] Embodiment 2: like Fig.26 As shown, the present invention also provides a method for using the integrated power port module housing molding mold described in Example 1, comprising the following steps: Step 1, semi-finished product injection molding, injecting the injection material A into the semi-finished product injection cavity 11 formed by the first upper mold 1 and the lower mold 3 through the injection port 12 at the top of the first upper mold 1, and forming the flip cover 10 after cooling and molding; Step 2: station switching. After the injection molding of the flip cover 10 is completed, the first upper mold 1 is separated from the lower mold 3, and the driving device of the rotating disk 4 is started. The rotating disk 4 drives the lower mold 3 to rotate 180 degrees, and the lower mold 3 and the flip cover 10 are switched from the semi-finished product injection molding station to the finished product injection molding station. The lower mold 3 is switched to cooperate with the second upper mold 2; Step 3: Finished product injection molding and hinge molding: Injection material B is injected into the finished product injection cavity 21 formed by the second upper mold 2 and the lower mold 3 through the injection port 12 at the top of the second upper mold 2, and the mounting ring 20 is formed after cooling and molding. During the injection molding, the rotating shaft 200 on the mounting ring 20 and the rotating shaft hole 100 on the flip cover 10 are automatically inserted and matched; Step 4: Demolding: After the mold is opened, the finished product is taken out manually or by a robot.

[0041] Among them, the driving device is composed of an electric spindle and a horizontally movable electric telescopic arm. The electric spindle and the electric telescopic arm structure are installed on CNC machining equipment (for details, please refer to the structure of the CNC tool axis of the CNC lathe). It belongs to a conventional structure and will not be described in detail here. The electric telescopic arm drives the electric spindle and the rotating disk 4 to move horizontally, and the electric spindle drives the rotating disk to rotate around the center line. In step one, the lower mold 3 is horizontally moved by the electric telescopic arm to complete the mold closing with the first upper mold 1 to form a semi-finished product injection cavity 11, and then the injection molding material A is injected into the semi-finished product injection cavity 11. The injection molding material A is formed into a flip cover 10. After step one is completed, the electric telescopic arm drives the rotating disk to disengage from the first upper mold 1, and then the electric spindle drives the rotating disk to rotate 18 0° (at this time, since the ejector pin 32 is inserted into the flip cover 10 to form a limit, the formed flip cover 10 is located on the lower mold 3 and has not fallen off), so that the lower mold is switched from the semi-finished product injection molding station to the finished product injection molding station, and is then set directly opposite the second upper mold 2. The electric telescopic arm then drives the rotating disk 4 to move horizontally, so that the lower mold 3 and the second upper mold 2 complete the mold closing to form a finished product injection molding cavity 12. Then, the injection molding material B is injected into the finished product injection molding cavity 12, and is formed into an installation ring 20 after cooling. Finally, the electric telescopic arm drives the rotating disk to move horizontally, and the lower mold 3 and the second upper mold 2 are separated, and the flip cover 10 and the installation front 20 are taken out. At this time, the rotating shaft 200 on the installation ring 20 and the rotating shaft hole 100 on the flip cover 10 are automatically inserted and matched, and no manual subsequent assembly is required.

[0042] It should be emphasized that in the present invention, two groups of lower molds 3 are provided. When one group of lower molds 3 cooperates with the first upper mold 1, the other group of lower molds 3 cooperates with the second upper mold 2. By rotating the rotating disk 4, the lower mold 3 is switched between the first upper mold 1 and the second upper mold 2 to achieve the effect of continuous molding of the finished product.

[0043] Furthermore, in the step 3, the melting point of the injection molding material A of the flip cover 10 is T1, and the melting point of the injection molding material B of the mounting ring 20 is T2, satisfying the condition: T1>T2. In the entire molding process, the semi-finished product is firstly injection molded to form the flip cover 10, and then the station switching operation is performed. In the finished product injection molding process, the rotating shaft 200 on the mounting ring 20 is automatically inserted and matched with the rotating shaft hole 100 on the flip cover 10 to achieve hinged molding. The lower melting point T2 of the injection molding material B plays a key role in this stage. When the injection molding material B is injected into the finished product injection cavity 21 in a molten state, due to its melting point It is relatively low. When it contacts with the already formed flip cover 10 with a higher melting point T1, the structure of the flip cover 10 will not be damaged due to excessive heat transfer. On the contrary, under suitable temperature and pressure conditions, the temperature difference between the materials can be utilized to make the injection molding material B better fit the corresponding part of the flip cover 10, so as to achieve a tight and firm combination between the two, ensure the quality of the hinged part, and enable the mounting ring 20 and the flip cover 10 to rotate smoothly relative to each other during subsequent use, thereby meeting the requirements of the hinged function of the integrated power port module housing in actual applications and improving the overall performance and reliability of the product.

[0044] Further, in the step 1, when the flip cover 10 is injected, the ejector pin 32 on the lower mold 3 is set in abutment with the protrusion 16 on the first upper mold 1, and the moving distance of the ejector pin 32 is L1. In the step 3, when the mounting ring 20 is injected, the moving distance of the ejector pin 32 is L2, and the length of the rotating shaft 200 on the mounting ring 20 is L3, satisfying the relationship: L1-L2=L3. The moving distance of the ejector pin 32 depends on the position of the pressing block 22 on the first upper mold 1 and the second upper mold 2. When the mounting ring 20 is injected, in order to ensure the accurate matching of the rotating shaft 200 and the rotating shaft hole 100, the ejector pin 32 moves in a direction away from the finished product injection cavity 21, and the melt gradually accumulates around it and is formed into the rotating shaft 200. At this time, the length of the molded rotating shaft 200 is just enough to achieve accurate docking with the rotating shaft hole 100 on the flip cover 10.

[0045] It should be noted that the protrusion 16 cooperates with the lower mold 3 to form a gap between the shaft holes 100 on both sides.

[0046] Furthermore, the moving distance of the ejector pin 32 is defined as the distance change between the initial position of the ejector pin 32 before the injection molding operation and the final position of the ejector pin 32 after the injection molding operation is completed.

[0047] It should be further explained that the edge of the portion where the rotating shaft hole 100 and the ejector pin 32 on the lower mold 3 contact is provided with an inclined surface 101 for facilitating demoulding, and the ejector pin 32 is provided with an inclined guide surface 321 corresponding to the inclined surface 101. The inclined surface 101 and the inclined guide surface 321 are arranged in a contoured manner, so that the ejector pin 32 is more stable during demoulding and use. When the flip cover 10 is injection-molded, the molten material forms the inclined surface 101 at the rotating shaft hole 100 according to the inclined guide surface 321 on the ejector pin 32. When the finished product is demoulded, the second upper mold 2 is separated from the lower mold 3. The setting of the inclined surface 101 enables the ejector pin 32 to be relatively smoothly ejected from the rotating shaft hole 100. Whether the finished product is taken out manually or by a robot, the demoulding process can be successfully completed, thereby reducing the scrap rate of the product due to poor demoulding and improving production efficiency and product quality.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated power port module housing forming mold, characterized in that: include: A first upper mold (1), a second upper mold (2), two sets of lower molds (3), a rotating disk (4), and a fixed disk (5); The first upper mold (1) and the second upper mold (2) are respectively arranged opposite to the corresponding lower mold (3); the first upper mold (1) and the lower mold (3) cooperate to form a semi-finished product injection molding cavity (11) for injection molding the flip cover (10); and the second upper mold (2) and the lower mold (3) cooperate to form a finished product injection molding cavity (21) for the mounting ring (20); The first upper mold (1) and the second upper mold (2) are both provided with an injection port (12) at the top, and an injection material A is injected into the semi-finished product injection cavity (11) through the injection port (12) to form a flip cover (10), and an injection material B is injected into the finished product injection cavity (21) through the injection port (12) to form a mounting ring (20), and the mounting ring (20) and the flip cover (10) are integrally hingedly formed; The first upper mold (1) and the second upper mold (2) are both fixedly mounted on the fixed disk (5), and the two groups of lower molds (3) are symmetrically mounted on the rotating disk (4). The rotating disk (4) drives the lower molds (3) to rotate to switch between the first upper mold (1) and the second upper mold (2).

2. The integrated power port module housing forming mold according to claim 1, characterized in that: The lower mold (3) of each group is provided with a slide module (31) and an ejector pin (32), the slide module (31) and the ejector pin (32) are symmetrically arranged on both sides of the semi-finished product injection cavity (11) and the finished product injection cavity (21), the ejector pin (32) is connected to the slide module (31), and the ejector pin (32) extends from the slide module (31) to one side of the semi-finished product injection cavity (11) and the finished product injection cavity (21).

3. The integrated power port module housing forming mold according to claim 2, characterized in that: The slide module (31) comprises a slider (311) and a guide rail (312), the slider (311) is slidably disposed on the guide rail (312), the ejector pin (32) is inserted through the slider (311), and the slider (311) drives the ejector pin (32) to reciprocate along the length direction of the guide rail (312); The ejector pin (32) forms a rotating shaft hole (100) on the flip cover (10) at the semi-finished product injection molding cavity (11), and the ejector pin forms a rotating shaft (200) on the mounting ring (20) at the finished product injection molding cavity (21).

4. The integrated power port module housing forming mold according to claim 3, characterized in that: A limiting groove (313) is provided on the top surface of the slider (311); a pressing block (22) corresponding to the limiting groove (313) is provided on the first upper die (1) and the second upper die (2); the pressing block (22) is arranged in a V-shape; the limiting groove (313) is arranged in a similar shape to the pressing block (22); the limiting groove (313) cooperates with the pressing block (22) to realize the movement of the ejector pin (32); when the pressing block (22) contacts the limiting groove (313), the ejector pin (32) moves along the moving direction of the slider (311).

5. The integrated power port module housing forming mold according to claim 1, characterized in that: The first upper mold (1) is provided with a first injection channel (13) and a second injection channel (14), the first injection channel (13) and the second injection channel (14) being connected to the semi-finished product injection cavity (11) and the injection port (12) on both sides, and the second upper mold (2) is provided with a third injection channel (23), the third injection channel (23) being connected to the finished product injection cavity (21) and the injection port (12) on both sides.

6. The integrated power port module housing forming mold according to claim 1, characterized in that: The first upper mold (1), the second upper mold (2) and the lower mold (3) are all provided with cooling medium channels (15).

7. A method for using the integrated power port module housing forming mold according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: semi-finished product injection molding, injecting molding material A into the semi-finished product injection molding cavity (11) formed by the first upper mold (1) and the lower mold (3) through the injection molding port (12) at the top of the first upper mold (1), and forming a flip cover (10) after cooling and molding; Step 2: station switching. After the injection molding of the flip cover (10) is completed, the first upper mold (1) is separated from the lower mold (3), and the driving device of the rotating disk (4) is started. The rotating disk (4) drives the lower mold (3) to rotate 180 degrees, and the lower mold (3) and the flip cover (10) are switched from the semi-finished product injection molding station to the finished product injection molding station. The lower mold (3) is switched to cooperate with the second upper mold (2); Step 3: injection molding and hinge molding of the finished product. The injection molding material B is injected into the finished product injection molding cavity (21) formed by the cooperation of the second upper mold (2) and the lower mold (3) through the injection molding port (12) at the top of the second upper mold (2). After cooling and molding, the mounting ring (20) is formed. During the injection molding, the rotating shaft (200) on the mounting ring (20) and the rotating shaft hole (100) on the flip cover (10) are automatically inserted and matched. Step 4: Demolding: After the mold is opened, the finished product is taken out manually or by a robot.

8. The method for using the integrated power port module housing forming mold according to claim 7, characterized in that: In the step three, the melting point of the injection molding material A of the flip cover (10) is T1, and the melting point of the injection molding material B of the mounting ring (20) is T2, satisfying the condition: T1>T2.

9. The method for using the integrated power port module housing forming mold according to claim 7, characterized in that: In the step 1, when the flip cover (10) is injection-molded, the ejector pin (32) on the lower mold (3) is arranged to abut against the protrusion (16) on the first upper mold (1), and the moving distance of the ejector pin (32) is L1. In the step 3, when the mounting ring (20) is injection-molded, the moving distance of the ejector pin (32) is L2, and the length of the rotating shaft (200) on the mounting ring (20) is L3, satisfying the relationship: L1-L2=L3.

10. The method for using the integrated power port module housing forming mold according to claim 7, characterized in that: An inclined surface (101) for facilitating demoulding is provided at the edge of the portion where the rotating shaft hole (100) contacts the ejector pin (32) on the lower mold (3); an inclined guide surface (321) is provided on the ejector pin (32) corresponding to the inclined surface (101); and the inclined surface (101) and the inclined guide surface (321) are arranged in a contoured manner.

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