Faucet handle mold

Abstract

This application relates to faucet handle molds, specifically to the field of handle mold technology, and includes a top plate and a bottom plate. The application utilizes two upper cavities and two lower cavities arranged correspondingly, with the upper and lower auxiliary cavities forming a symmetrical cavity layout. The flow distribution effect of two guide channels ensures even filling of the molten plastic, improving the problem of poor dimensional consistency. The guide block and guide channel fit together to ensure precise mold closing between the upper and lower molds, reducing flash. The injection port stably delivers molten material, further enhancing filling uniformity in conjunction with the guide channels. The first and second reserved cooling channels introduce cooling media for synchronous cooling, reducing shrinkage marks and cracking, and shortening the molding cycle. A partition, lower fixing plate, and ejector plate enhance the stability of the bottom structure, resisting pressure deformation. Symmetrically distributed ejector pins ensure even ejection, preventing warping. A process auxiliary block serves as the ejection force point, protecting the appearance of the faucet handle body and facilitating removal.

Description

Technical Field

[0001] This application relates to the field of handle mold technology, and in particular to faucet handle molds. Background Technology

[0002] As a common component in daily life and industry, the handle of a faucet is a key operating part for controlling the flow of water and must have characteristics such as stable structure, accurate dimensions, and smooth appearance.

[0003] Currently, faucet handles are mostly produced using plastic injection molding, which is efficient and cost-effective, making it suitable for mass production. To further optimize the molding quality and efficiency of faucet handles, faucet handle molds have been proposed. Summary of the Invention

[0004] The purpose of this application is to provide a faucet handle mold that enables the synchronous and stable molding of two handles, improves product quality and production economy, and solves the problems in the background technology.

[0005] The faucet handle mold provided in this application adopts the following technical solution: The faucet handle mold includes a top plate and a bottom plate. An upper mold is installed inside the top plate. Two upper cavities are opened on the bottom surface of the upper mold. Four upper auxiliary cavities are opened on the outside of each upper cavity. A lower mold is installed inside the bottom plate. A first reserved groove and two second reserved grooves are opened inside the lower mold. A guide groove communicating with the first reserved groove is opened on both sides. A lower cavity is opened at one end of each guide groove. Four lower auxiliary cavities are opened on the outside of each second reserved groove. An installation plate is provided below the bottom plate. Two outer forming pillars are fixedly connected to the upper surface of the installation plate. An inner forming pillar is embedded inside each outer forming pillar. The two outer forming pillars are respectively fitted inside the two second reserved grooves.

[0006] By adopting the above technical solution, two upper cavities are set up correspondingly with two lower cavities, and the upper auxiliary cavity is matched with the lower auxiliary cavity to form a symmetrical cavity layout. With the diversion effect of the guide groove, the pressure and speed of the molten plastic can be more balanced during filling. This effectively improves the problem of poor consistency of the two handle dimensions caused by unreasonable cavity layout and flow channel design in the prior art, reduces the situation of overfilling or underfilling, and reduces the cost of subsequent screening and sorting. The cooperation between the outer forming column and the inner forming column and the second reserved groove can stabilize the forming connection part and further ensure the stability of the product structure.

[0007] Preferably, guide blocks are fixedly connected to the four corners of the bottom surface of the upper mold, and guide grooves are provided at the four corners of the lower mold, with the guide blocks and guide grooves being adapted to each other.

[0008] By adopting the above technical solution, the matching and cooperation of the guide block and the guide groove can play a precise guiding and positioning role in the mold closing process. This effectively solves the problem of low alignment accuracy between the fixed mold and the moving mold caused by insufficient or unreasonable distribution of the guide and positioning components in the existing technology. It ensures the accuracy of the upper mold and the lower mold when closing, reduces the flash caused by cavity misalignment, and reduces the process cost of manual trimming.

[0009] Preferably, an injection port is installed on the top of the top plate, and the output end of the injection port is located inside the upper mold.

[0010] By adopting the above technical solution, the injection port can stably deliver molten plastic into the upper mold, providing a sufficient and continuous supply of molten material for filling the two lower cavities. This avoids filling differences caused by unstable molten material input. Combined with the uniform flow distribution of the two guide channels, it further ensures the uniformity of filling and helps to improve the consistency of molding quality.

[0011] Preferably, the top plate has multiple transparent first reserved cooling channels on its side, and the multiple first reserved cooling channels all penetrate the interior of the upper mold and extend to the other side of the top plate.

[0012] By adopting the above technical solution, the first reserved cooling channel can be circulated with cooling medium, which can uniformly cool the upper mold and improve the product appearance quality.

[0013] Preferably, the bottom plate has multiple second reserved cooling channels on its side, and the multiple second reserved cooling channels all penetrate the interior of the lower mold and extend to the other side of the bottom plate.

[0014] By adopting the above technical solution, the second reserved cooling channel can be circulated with a cooling medium, which can uniformly cool the lower mold. In conjunction with the first reserved cooling channel, the upper and lower molds are cooled synchronously, making the product cool and shrink uniformly. This reduces the molding cycle extension caused by slow cooling and also reduces the risk of cracking caused by uneven internal stress, thereby improving production efficiency and product reliability.

[0015] Preferably, a partition is installed below the mounting plate, a lower fixing plate is installed at the bottom of the partition, and a top plate is installed inside the lower fixing plate.

[0016] By adopting the above technical solution, the partition plate, the lower fixed plate and the ejector plate cooperate with each other to ensure the stability and rigidity of the bottom structure of the mold, effectively resist the pressure generated during injection and ejection, and avoid deformation caused by the weak bottom structure of the mold.

[0017] Preferably, the ejector plate has two ejector pin assemblies fixedly connected inside, and the two ejector pin assemblies are slidably sleeved on both sides of the mounting plate, with the top of each ejector pin assembly embedded in the bottom of the base plate.

[0018] By adopting the above technical solution, the two ejector pin assemblies are symmetrically distributed and slidably set, which can provide a balanced ejection force during the demolding process, ensuring the smooth demolding of the product, reducing warping and deformation caused by uneven ejection, and improving the structural integrity of the product after molding.

[0019] Preferably, two faucet handle bodies and eight process auxiliary blocks are formed between the top plate and the bottom plate. The two faucet handle bodies are respectively located between two upper cavities and two lower cavities, and the eight process auxiliary blocks are respectively located between eight upper auxiliary cavities and eight lower auxiliary cavities.

[0020] By adopting the above technical solution, the process auxiliary block is connected to the two faucet handle bodies via thin connecting ribs and is located on a non-exterior surface. It can act as a stress point during ejection, preventing the ejector pin assembly from directly impacting the exterior surface of the faucet handle body, thus solving the problem of existing ejection mechanisms easily damaging the product's appearance. Simultaneously, the process auxiliary block can be easily removed after demolding without affecting the final use of the faucet handle body, ensuring the product's appearance quality and structural integrity, and enhancing the product's market competitiveness.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] This faucet handle mold features two upper cavities and two lower cavities, with upper and lower auxiliary cavities forming a symmetrical cavity layout. Two flow channels divert the molten plastic, ensuring even filling and improving dimensional consistency. A matching guide block and guide channel ensure precise mold closing between the upper and lower molds, reducing flash. A stable injection port delivers molten material, further enhancing filling uniformity. The first and second reserved cooling channels allow for simultaneous cooling, reducing shrinkage marks and cracking, and shortening the molding cycle. A partition, lower fixing plate, and ejector plate enhance the stability of the bottom structure, resisting pressure deformation. Symmetrically distributed ejector pins ensure even ejection, preventing warping. A process auxiliary block serves as the ejection force point, protecting the faucet handle's appearance and facilitating removal. The overall design achieves simultaneous and stable molding of both handles, improving product quality, production economy, and cost reduction. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall front view structure of this application;

[0024] Figure 2 This is a top view of the structure of the first part of this application;

[0025] Figure 3 This is a top view of the second part of the structure of this application;

[0026] Figure 4 This is a schematic diagram of the structure from below during a partial explosion, as shown in this application.

[0027] Figure 5 This is a schematic diagram of the formed structure of this application.

[0028] In the picture:

[0029] 1. Top plate; 2. Bottom plate; 3. Upper mold; 4. Guide block; 5. Upper cavity; 6. Upper auxiliary cavity; 7. Injection port; 8. First reserved cooling channel; 9. Lower mold; 10. First reserved groove; 11. Guide groove; 12. Lower cavity; 13. Second reserved groove; 14. Lower auxiliary cavity; 15. Second reserved cooling channel; 16. Mounting plate; 17. Outer forming pillar; 18. Inner forming pillar; 19. Guide groove; 20. Partition plate; 21. Lower fixing plate; 22. Ejector plate; 23. Ejector pin assembly; 24. Faucet handle body; 25. Process auxiliary block. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0031] Example 1: Faucet handle mold, refer to Figure 2 , Figure 3 and Figure 4 The system includes a top plate 1 and a bottom plate 2. An upper mold 3 is installed inside the top plate 1. The bottom surface of the upper mold 3 has two upper cavities 5, and each upper cavity 5 has four upper auxiliary cavities 6 on its exterior. A lower mold 9 is installed inside the bottom plate 2. The lower mold 9 has one first reserved groove 10 and two second reserved grooves 13 inside. Both sides of the first reserved groove 10 have connecting guide grooves 11, and one end of each guide groove 11 has a lower cavity 12. An injection port 7 is installed on the top of the top plate 1. The output end of the injection port 7 is located inside the upper mold 3, and the injection port 7 can stably transport molten plastic to the top plate 1. Inside the upper mold 3, a sufficient and continuous supply of molten material is provided for filling the two lower cavities 12, avoiding filling differences caused by unstable molten material input. Combined with the uniform flow distribution of the two guide channels 11, the uniformity of filling is further guaranteed, which helps to improve the consistency of molding quality. Four lower auxiliary cavities 14 are opened on the outside of each second reserved slot 13. A mounting plate 16 is provided below the bottom plate 2. Two outer forming pillars 17 are fixedly connected to the upper surface of the mounting plate 16. An inner forming pillar 18 is embedded inside each outer forming pillar 17. The two outer forming pillars 17 are respectively fitted inside the two second reserved slots 13.

[0032] Reference Figure 3 , Figure 4 and Figure 5 Between the top plate 1 and the bottom plate 2, two faucet handle bodies 24 and eight process auxiliary blocks 25 are formed. The two faucet handle bodies 24 are located between two upper cavities 5 and two lower cavities 12, respectively. The eight process auxiliary blocks 25 are located between eight upper auxiliary cavities 6 and eight lower auxiliary cavities 14, respectively. The process auxiliary blocks 25 are connected to the two faucet handle bodies 24 by thin connecting ribs and are located on non-exterior surfaces. They can serve as force-bearing points during ejection, preventing the ejector pin assembly 23 from directly acting on the exterior surface of the faucet handle bodies 24, thus solving the problem of existing ejection mechanisms easily damaging the product's appearance. At the same time, the process auxiliary blocks 25 can be easily removed after demolding without affecting the final use of the faucet handle bodies 24, ensuring the product's appearance quality and structural integrity, and enhancing the product's market competitiveness.

[0033] Example 2: Faucet handle mold, see reference Figure 1 , Figure 2 and Figure 4 Based on the same concept as Embodiment 1 above, this embodiment proposes that guide blocks 4 are fixedly connected to the four corners of the bottom surface of the upper mold 3, and guide grooves 19 are opened at the four corners of the lower mold 9. The guide blocks 4 and guide grooves 19 are adapted to each other. The adaptation and cooperation between the guide blocks 4 and guide grooves 19 can play a precise guiding and positioning role during the mold closing process, effectively solving the problem of low alignment accuracy between the fixed mold and the moving mold caused by insufficient or unreasonable distribution of guide and positioning components in the prior art. This ensures the accuracy when the upper mold 3 and the lower mold 9 are closed, reduces flash caused by cavity misalignment, and reduces the process cost of manual trimming. The side of the top plate 1 is provided with multiple transparent first reserved cooling channels 8. The multiple first reserved cooling channels 8 are all The first reserved cooling channel 8, which runs through the interior of the upper mold 3 and extends to the other side of the top plate 1, can be circulated with a cooling medium to uniformly cool the upper mold 3, thus improving the appearance quality of the product. The bottom plate 2 has multiple second reserved cooling channels 15 on its side. These channels all run through the interior of the lower mold 9 and extend to the other side of the bottom plate 2. The second reserved cooling channels 15 can be circulated with a cooling medium to uniformly cool the lower mold 9. In conjunction with the first reserved cooling channel 8, the upper mold 3 and the lower mold 9 are cooled synchronously, resulting in uniform cooling and shrinkage of the product. This reduces the molding cycle extension caused by slow cooling and lowers the risk of cracking caused by uneven internal stress, thereby improving production efficiency and product reliability.

[0034] Reference Figure 1 and Figure 2A partition plate 20 is installed below the mounting plate 16, and a lower fixing plate 21 is installed at the bottom of the partition plate 20. An ejector plate 22 is installed inside the lower fixing plate 21. The partition plate 20, the lower fixing plate 21, and the ejector plate 22 cooperate with each other to ensure the stability and rigidity of the mold bottom structure, effectively resisting the pressure generated during injection and ejection, and avoiding deformation caused by the weak bottom structure of the mold. Two ejector pin assemblies 23 are fixedly connected inside the ejector plate 22. The two ejector pin assemblies 23 are slidably sleeved on both sides of the mounting plate 16, and the tops of the two ejector pin assemblies 23 are embedded in the bottom of the bottom plate 2. The two ejector pin assemblies 23 are symmetrically distributed and slidably arranged, which can provide a balanced ejection force during demolding, ensuring smooth demolding of the product, reducing warping and deformation caused by uneven ejection, and improving the structural integrity of the product after molding.

[0035] The implementation principle of this application embodiment is as follows: the upper mold 3 and the lower mold 9 are driven to close by the top plate 1 and the bottom plate 2. At this time, the guide block 4 on the bottom surface of the upper mold 3 is embedded in the guide groove 19 of the lower mold 9 to achieve precise alignment and ensure that the upper cavity 5 and the lower cavity 12, and the upper auxiliary cavity 6 and the lower auxiliary cavity 14 are accurately fitted. After the mold is closed, the molten plastic enters the interior of the upper mold 3 through the injection port 7 at the top of the top plate 1, and is diverted to the guide grooves 11 on both sides through the first reserved groove 10. Then, it is evenly transported to the lower cavity 12 and the corresponding upper cavity 5 by the guide grooves 11, while filling the upper auxiliary cavity 6 and the lower auxiliary cavity 14 to form two faucet handle bodies 24 and eight process auxiliary blocks 25. The outer forming column 17 and the inner forming column 18 are simultaneously formed in the second reserved groove 13 to form the connecting part inside the faucet handle body 24. During the injection molding process, the first reserved cooling channel 8 and the second reserved cooling channel 15 are connected to the lower mold 12 and the lower mold 12. Cooling medium is introduced into the upper mold 3 and the lower mold 9 respectively, so that the molten plastic cools and solidifies synchronously in the symmetrical cavity, avoiding shrinkage marks or cracks caused by uneven cooling. After molding, the ejector plate 22 in the lower fixed plate 21 drives the ejector pin assembly 23 to move upward. The ejector pin assembly 23 passes through the mounting plate 16 and acts on the bottom of the base plate 2, which can separate the two faucet handle bodies 24 from the two outer forming pillars 17 and the inner forming pillars 18. At the same time, the remaining existing ejector pins can transmit the ejection force to the faucet handle body 24 through the process auxiliary block 25. At this time, the process auxiliary block 25 drives the faucet handle body 24 to be ejected from the lower cavity 12 and the upper cavity 5 through the thin connecting rib. After demolding, the process auxiliary block 25 can be easily cut off from the faucet handle body 24, and finally two faucet handles with the same size and perfect appearance are obtained. The whole process achieves efficient and stable production through symmetrical layout and synchronous action.

[0036] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A faucet handle mold, comprising a top plate (1) and a bottom plate (2), characterized in that: The top plate (1) is equipped with an upper mold (3). The bottom surface of the upper mold (3) has two upper cavities (5). Each upper cavity (5) has four upper auxiliary cavities (6) on its exterior. The bottom plate (2) is equipped with a lower mold (9). The lower mold (9) has a first reserved groove (10) and two second reserved grooves (13) on its interior. The first reserved groove (10) has guide grooves (11) on both sides that are connected to it. Each of the guide grooves (11) has a lower cavity (12) at one end, and each of the second reserved grooves (13) has four lower auxiliary cavities (14) on its outside. The bottom plate (2) has an installation plate (16) below it. The upper surface of the installation plate (16) is fixedly connected to two outer forming pillars (17). Each of the outer forming pillars (17) has an inner forming pillar (18) embedded inside it. The two outer forming pillars (17) are respectively fitted inside the two second reserved grooves (13).

2. The faucet handle mold according to claim 1, characterized in that: Guide blocks (4) are fixedly connected to the four corners of the bottom surface of the upper mold (3), and guide grooves (19) are opened at the four corners of the lower mold (9). The guide blocks (4) and guide grooves (19) are adapted to each other.

3. The faucet handle mold according to claim 1, characterized in that: The top of the top plate (1) is equipped with an injection port (7), and the output end of the injection port (7) is located inside the upper mold (3).

4. The faucet handle mold according to claim 1, characterized in that: The top plate (1) has multiple transparent first reserved cooling channels (8) on its side. The multiple first reserved cooling channels (8) all penetrate the interior of the upper mold (3) and extend to the other side of the top plate (1).

5. The faucet handle mold according to claim 1, characterized in that: The bottom plate (2) has multiple second reserved cooling channels (15) on its side. The multiple second reserved cooling channels (15) all penetrate the interior of the lower mold (9) and extend to the other side of the bottom plate (2).

6. The faucet handle mold according to claim 1, characterized in that: A partition (20) is installed below the mounting plate (16), and a lower fixing plate (21) is installed at the bottom end of the partition (20). A top plate (22) is installed inside the lower fixing plate (21).

7. The faucet handle mold according to claim 6, characterized in that: The ejector plate (22) has two ejector pin assemblies (23) fixedly connected inside. The two ejector pin assemblies (23) are slidably sleeved on both sides of the mounting plate (16), and the top of the two ejector pin assemblies (23) is embedded in the bottom of the base plate (2).

8. The faucet handle mold according to claim 1, characterized in that: Two faucet handle bodies (24) and eight process auxiliary blocks (25) are formed between the top plate (1) and the bottom plate (2). The two faucet handle bodies (24) are located between two upper cavities (5) and two lower cavities (12), respectively. The eight process auxiliary blocks (25) are located between eight upper auxiliary cavities (6) and eight lower auxiliary cavities (14), respectively.

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