A new type of sealing ring multi-head die

Abstract

The utility model discloses a novel sealing ring multi -head mould belongs to multi -cavity mould field, and the inner end of first mould seat is equipped with first inner core, and the inner end of second mould seat is equipped with second inner core, and the four corners of first inner core, second inner core are equipped with guide hole site, guide column respectively, and the guide connection of first inner core, second inner core is realized through guide column, guide hole site, and first inner core includes first core body, and the inner end of first core body is equipped with a plurality of hole cavities. First inner core and second inner core are accurate alignment, and the hole cavity and the butt joint hole on it install replaceable sealing ring seat and butt joint seat respectively, and the sealing ring forming groove is formed together. This structure makes the mould can according to different production requirements, and the sealing ring seat and butt joint seat are replaced quickly, thereby producing different specifications and shape's sealing ring. Meanwhile, the precision and stability of sealing ring forming groove are guaranteed to accurate guide connection and stable replacement mechanism, and then the quality and efficiency of sealing ring forming are ensured.

Description

Technical Field

[0001] This utility model relates to the field of multi-cavity molds, and in particular to a novel multi-head mold for sealing rings. Background Technology

[0002] Multi-head sealing ring molds are specialized molds used for the efficient production of sealing rings. Their core feature is the ability to mold multiple sealing rings in a single operation through a multi-cavity design, significantly improving production efficiency and reducing costs. Multi-head sealing ring molds typically consist of a stationary injection mold assembly and a moving injection mold assembly: The stationary injection mold assembly includes a stationary mold mounting plate, a stationary mold plate frame, and a stationary mold plate. A sealing ring cavity is formed on the stationary mold plate, and an injection port is located on the other side of the stationary mold mounting plate for injecting molten plastic. The moving injection mold assembly consists of a moving mold mounting plate, a support frame, sliding rods, a mounting plate, and a moving mold plate frame. Sliding rods are located at the four corners of the inner side of the support frame. The mounting plate is connected to the moving mold plate frame via a drive rod, and the moving mold plate frame contains a sealing ring punch that matches the cavity of the stationary mold plate.

[0003] When the mold is working, the mounting plate drives the moving template frame forward or backward along the slide bar, causing the moving template to close or separate from the stationary template. When closing, the molten rubber enters the stationary template cavity through the injection port, and forms a sealing ring after cooling and solidification; when separating, the finished sealing ring is ejected from the mold. Multi-head molds can simultaneously form multiple sealing rings through the cooperation of multiple sets of cavities and punches.

[0004] Currently, multi-head molds for sealing rings have some significant drawbacks in practical applications. Firstly, while multi-head molds can improve production efficiency when producing sealing rings of the same size, a different mold must be used when producing sealing rings of different sizes. This changeover process is extremely cumbersome, involving a series of complex operations such as mold disassembly, installation, and debugging. This not only consumes a significant amount of time and manpower but can also negatively impact subsequent production quality due to improper operation, leading to a substantial decrease in production efficiency.

[0005] Secondly, when the sealing ring forming cavity of a mold is damaged, the current approach is usually to replace the entire mold. However, molds are relatively expensive, especially for multi-head molds with high precision requirements and complex structures. Replacing the entire mold simply because of damage to the forming cavity results in a significant waste of resources, increases production costs for enterprises, and reduces the market competitiveness of products. Utility Model Content

[0006] The main objective of this invention is to provide a novel multi-head mold for sealing rings, which can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A new multi-head mold for sealing rings, including a first mold base, a second mold base, guide posts and guide hole positions, the first mold base and the second mold base form a multi-head mold matrix; The inner end of the first mold base is provided with a first inner core, and the inner end of the second mold base is provided with a second inner core. Guide hole positions and guide posts are respectively arranged at the four corners of the first inner core and the second inner core, and the first inner core and the second inner core are guided and connected through the guide posts and the guide hole positions; The first inner core includes a first core body. A plurality of cavities are opened at the inner end of the first core body. Threaded annular grooves are opened at the inner bottom of each cavity. A replaceable sealing ring seat is inserted into each cavity, and a threaded connection ring adapted to the threaded annular groove is provided at the inner end of the replaceable sealing ring seat. The quick replacement of replaceable sealing ring seats of different sizes is realized through the threaded connection ring; The second inner core includes a second core body. A plurality of docking holes are opened at the inner end of the second core body. Fastening screw holes are opened at the inner bottom of each docking hole, and a replaceable docking seat is embedded. A fastening bolt is inserted into the fastening screw hole and connected to the replaceable docking seat.

[0008] As an optional solution of the present application, the plurality of cavities are equidistantly distributed on the first core body, the plurality of cavities are distributed in a "mouth" shape, and the threaded annular groove is concentrically designed with the cavity; As an optional solution of the present application, the plurality of docking holes are equidistantly distributed on the second core body, the plurality of docking holes are distributed in a "mouth" shape and are aligned with the cavities, and the fastening screw holes are concentrically designed with the docking holes; As an optional solution of the present application, the threaded connection ring is located at the bottom of the replaceable sealing ring seat, the threaded connection ring is integrally designed with the replaceable sealing ring seat, and the threaded connection ring is embedded in the threaded annular groove and is threadedly connected thereto; As an optional solution of the present application, the inner end of the replaceable docking seat is provided with an alignment with the fastening screw hole, and the fastening bolt passes through the fastening screw hole and is threadedly connected to the replaceable docking seat; As an optional solution of the present application, the docking surfaces of the replaceable sealing ring seat and the replaceable docking seat form a sealing ring forming groove.

[0009] Compared with the prior art, the present utility model has the following beneficial effects: The plurality of cavities opened on the first inner core and arranged equidistantly and in a "mouth" shape, and the threaded annular grooves designed at the inner bottom of the cavities, in cooperation with the replaceable sealing ring seats, can realize the quick and convenient replacement of replaceable sealing ring seats of different sizes, improve the versatility and flexibility of the mold, can adapt to the production requirements of various different specifications of sealing rings, and reduce the cost and time of replacing the entire mold due to the production of different specifications of products.

[0010] A plurality of docking holes are provided on the second inner core, arranged at equal intervals and in a "square" shape. A fastening screw hole is provided at the bottom of the docking hole. With the配合 of a replaceable docking seat and a fastening bolt, it can ensure the firm connection of the replaceable docking seat, also improving the versatility and flexibility of the mold, facilitating the replacement of the docking seat according to different production requirements, reducing production costs and shortening the production cycle.

[0011] In the first inner core, the replacement of the sealing ring seat is achieved through the配合 of a threaded connection ring and a threaded annular groove. In the second inner core, the replacement of the docking seat is achieved through the配合 of a fastening bolt and a fastening screw hole. This replacement mechanism is simple in design and convenient in operation, capable of quickly completing the replacement of the inner core components, improving production efficiency, and at the same time ensuring the stability of the connection of the components after replacement, which is beneficial to ensuring the molding quality of the sealing ring.

[0012] The first inner core and the second inner core are precisely aligned. The replaceable sealing ring seat and docking seat are respectively installed in the hole cavity and docking hole on them, jointly forming a sealing ring molding groove. This structure enables the mold to quickly replace the sealing ring seat and docking seat according to different production requirements, thereby producing sealing rings of different specifications and shapes. At the same time, the precise guiding connection and stable replacement mechanism ensure the accuracy and stability of the sealing ring molding groove, further ensuring the quality and efficiency of the sealing ring molding, improving the qualified rate of products, reducing production costs, and enhancing the market competitiveness of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model; Figure 2 is a display diagram of the overall structure of the present utility model; Figure 3 is an exploded view of the first inner core of the present utility model; Figure 4 is an exploded view of the second inner core of the present utility model.

[0014] In the figure: 1, the first mold base; 2, the first inner core; 21, the first core body; 22, the hole cavity; 23, the threaded annular groove; 24, the replaceable sealing ring seat; 25, the threaded connection ring; 3, the second mold base; 4, the second inner core; 41, the second core body; 42, the docking hole; 43, the replaceable docking seat; 44, the fastening screw hole; 45, the fastening bolt; 5, the guide post; 6, the guide hole position. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Such as Figure 1 - Figure 4As shown in the figure, a new multi-head mold for sealing rings, whose structural components include a first mold base 1, a second mold base 3, guide posts 5 and guide hole positions 6. Among them, the first mold base 1 and the second mold base 3 together constitute the matrix part of the multi-head mold; the inner end of the first mold base 1 is provided with a first inner core 2, and the inner end of the second mold base 3 is equipped with a second inner core 4. At the four corners of the first inner core 2 and the second inner core 4, guide hole positions 6 and guide posts 5 are respectively provided, and through the cooperation of these guide posts 5 and guide hole positions 6, the precise guiding connection between the first inner core 2 and the second inner core 4 is achieved.

[0017] Specifically, the first inner core 2 is mainly composed of a first core body 21. The inner end of the first core body 21 is provided with a plurality of cavities 22, and a threaded annular groove 23 is designed at the inner bottom of each cavity 22. Inside each cavity 22, a replaceable sealing ring seat 24 is inserted. The inner end of the sealing ring seat is provided with a threaded connection ring 25 adapted to the threaded annular groove 23. Through the design of this threaded connection ring 25, the quick and convenient replacement of replaceable sealing ring seats 24 of different sizes can be achieved.

[0018] The second inner core 4 includes a second core body 41. The inner end of the second core body 41 is also provided with a plurality of docking holes 42, and a fastening screw hole 44 is opened at the inner bottom of each docking hole 42, and a replaceable docking seat 43 is embedded therein. A fastening bolt 45 is inserted into the fastening screw hole 44 and is tightly combined with the replaceable docking seat 43 through threaded connection.

[0019] On the first core body 21, the plurality of cavities 22 are evenly distributed at equal intervals, and these cavities 22 present a "mouth" - shaped arrangement layout. The threaded annular groove 23 and the cavity 22 adopt a concentric design, ensuring the symmetry and stability of the structure. Similarly, on the second core body 41, the plurality of docking holes 42 are also distributed at equal intervals and are arranged in a "mouth" - shaped pattern, and are precisely aligned with the cavities 22 on the first core body 21. The fastening screw hole 44 and the docking hole 42 also adopt a concentric design.

[0020] The threaded connection ring 25 is located at the bottom of the replaceable sealing ring seat 24 and is integrally designed with the sealing ring seat. The threaded connection ring 25 is embedded in the threaded annular groove 23 and is firmly combined through threaded connection. The inner end of the replaceable docking seat 43 is provided with a structure aligned with the fastening screw hole 44. The fastening bolt 45 passes through the fastening screw hole 44 and is threadedly connected with the replaceable docking seat 43, ensuring the firmness of the connection.

[0021] The docking surfaces of the replaceable sealing ring seat 24 and the replaceable docking seat 43 together form a sealing ring forming groove, which corresponds to the injection nozzle on the core body, thus realizing the precise injection operation in the sealing ring forming groove and ensuring the quality and efficiency of the sealing ring forming.

[0022] Install the guide post 5 into the corresponding position of the guide hole 6 on the second mold base 3. Next, pick up the first mold base 1, align the guide hole 6 on the first inner core 2 with the guide post 5 on the second mold base 3, and slowly close the first mold base 1 and the second mold base 3, allowing the guide post 5 to be inserted into the guide hole 6, achieving a precise guiding connection between the first inner core 2 and the second inner core 4. Then, insert the replaceable sealing ring seat into each cavity 22 of the first core 21, ensuring that the threaded connecting ring 25 at the bottom of the sealing ring seat is embedded in the threaded annular groove 23 at the bottom of the cavity 22, and fix it with the threaded connection. Afterwards, insert the replaceable mating seat 43 into each mating hole 42 of the second core 41, insert the fastening bolt 45 into the fastening screw hole 44, and tightly connect it with the replaceable mating seat 43 with the threaded connection.

[0023] Install the assembled multi-head mold of the new sealing ring onto the injection molding machine, aligning the injection nozzle on the core with the sealing ring forming groove. Start the injection molding machine and inject molten plastic raw material into the sealing ring forming groove through the injection nozzle to perform the injection molding operation. After injection molding is complete, wait for the sealing ring to cool and solidify, then open the mold and remove the formed sealing ring.

[0024] The first step is to correctly assemble the first mold base 1 and the second mold base 3 according to the assembly process, ensuring precise alignment of the first inner core 2 and the second inner core 4 to form the sealing ring forming groove. The second step is to debug the injection molding machine, setting parameters such as injection temperature, pressure, and speed. The third step is to add molten plastic raw material into the injection molding machine barrel. The fourth step is to start the injection molding machine, causing the screw to rotate and transport the plastic raw material forward, melting and plasticizing it. Once sufficient injection volume is reached, the screw stops rotating. The fifth step is to close the mold, clamping the assembled mold, and then push the screw forward, injecting the molten plastic raw material through the injection nozzle on the core into the sealing ring forming groove. The sixth step is to maintain a certain pressure and time, allowing the plastic raw material to fully fill and cool and solidify within the sealing ring forming groove. The seventh step is to open the mold after the cooling time is reached and remove the formed sealing ring.

[0025] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of sealing ring multi-head die, comprising a first die seat (1), a second die seat (3), a guide column (5) and a guide hole position (6), the first die seat (1) and the second die seat (3) form a multi-head die base, characterized in that: The inner end of the first mold base (1) is provided with a first inner core (2), and the inner end of the second mold base (3) is provided with a second inner core (4). Guide hole positions (6) and guide columns (5) are respectively arranged at the four corners of the first inner core (2) and the second inner core (4). The first inner core (2) and the second inner core (4) are connected in a guiding manner through the guide columns (5) and the guide hole positions (6). The first inner core (2) includes a first core body (21). A plurality of cavities (22) are formed at the inner end of the first core body (21). Threaded annular grooves (23) are formed at the inner bottom of each cavity (22). A replaceable seal ring seat (24) is inserted into each cavity (22). A threaded connection ring (25) adapted to the threaded annular groove (23) is provided at the inner end of the replaceable seal ring seat (24). The quick replacement of replaceable seal ring seats (24) of different sizes is achieved through the threaded connection ring (25). The second inner core (4) includes a second core body (41). A plurality of docking holes (42) are formed at the inner end of the second core body (41). Fastening screw holes (44) are formed at the inner bottom of each docking hole (42). A replaceable docking seat (43) is embedded. A fastening bolt (45) is inserted into the fastening screw hole (44) and connected to the replaceable docking seat (43).

2. A new type of multi-head die for sealing ring according to claim 1, characterized in that: The plurality of cavities (22) are equidistantly distributed on the first core body (21). The plurality of cavities (22) are distributed in a "mouth" shape. The threaded annular groove (23) is concentrically designed with the cavity (22).

3. A new type of multi-head die for sealing ring according to claim 2, characterized in that: The plurality of docking holes (42) are equidistantly distributed on the second core body (41). The plurality of docking holes (42) are distributed in a "mouth" shape and are aligned with the cavities (22). The fastening screw hole (44) is concentrically designed with the docking hole (42).

4. A new type of multi-head die for sealing ring according to claim 3, characterized in that: The threaded connection ring (25) is located at the bottom of the replaceable seal ring seat (24). The threaded connection ring (25) is integrally designed with the replaceable seal ring seat (24). The threaded connection ring (25) is embedded in the threaded annular groove (23) and is threadedly connected thereto.

5. A new type of multi-head die for sealing ring according to claim 4, characterized in that: The inner end of the replaceable docking seat (43) is aligned with the fastening screw hole (44). The fastening bolt (45) passes through the fastening screw hole (44) and is threadedly connected to the replaceable docking seat (43).

6. A novel multi-head mold for sealing rings according to claim 5, characterized in that: The docking surfaces of the replaceable seal ring seat (24) and the replaceable docking seat (43) form a seal ring forming groove.

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