An adapter pipe injection molding mold
By designing a multi-cavity transfer tube injection mold and utilizing components such as cooling pipes and limiting posts, the problem of repeated injection molding required by existing molds was solved, enabling efficient production of multiple transfer tubes and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUN ON PLASTIC MOULDING (DONGGUAN) CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-08-04
AI Technical Summary
In the existing design of injection molds for transfer tubes, repeated injection molding is required to form the tubes, and multiple transfer tubes cannot be produced simultaneously, resulting in low production efficiency.
Design a multi-cavity transfer pipe injection mold, including the coordination of components such as upper fixing plate, female mold plate, male mold plate, and cooling pipe. The raw material is injected through the injection port and quickly cooled by the cooling pipe. Combined with limit posts and demolding components, it achieves efficient production.
This technology enables the simultaneous production of multiple adapter pipes in each injection molding cycle, improving production efficiency. Furthermore, the reinforced structure ensures mold stability and reduces the defect rate.
Smart Images

Figure CN224588482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to an injection molding mold for a transfer tube. Background Technology
[0002] An injection mold is a tool used in the injection molding process. It heats thermoplastic or thermosetting plastic materials to a molten state, then injects them into a mold cavity, where they cool and solidify to form a plastic product with a specific shape and size. For producing pipe-type plastic products, a pipe injection mold is required.
[0003] A search revealed Chinese Patent Publication No. CN216658819U, which discloses a sliding water channel transition structure and an injection mold. This sliding water channel transition structure includes a sliding mechanism, a first water transfer block, an inlet pipe, and an outlet pipe. This invention achieves a right-angle turn in the cooling water channel by setting a first water transfer block; by setting a first water transfer block and a second water transfer block, the inlet pipe and outlet pipe are connected to the sliding mechanism located in the center of the injection mold, thereby achieving cooling of the sliding mechanism in the center of the injection mold. Furthermore, the positions of the inlet pipe and outlet pipe can be easily adjusted by setting the positions of the first and second water transfer blocks, thus reducing the loop length, increasing the water flow velocity in the sliding mechanism in the center of the injection mold, resulting in better cooling effect and shorter cooling time. It can effectively control the mold temperature, achieve rapid molding, ensure stable injection molding quality, and improve production efficiency.
[0004] In the aforementioned utility model, the water flow velocity of the sliding mechanism at the center of the injection mold is increased to effectively control the mold temperature and achieve rapid molding. However, in actual use, there are still situations where products need to be repeatedly injection molded to be formed. Without multiple cavities designed, it is difficult to produce multiple adapter pipes simultaneously with each injection, thus failing to significantly improve production efficiency. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a transfer tube injection molding die, which aims to improve the situation where products need to be repeatedly injection molded to be formed. Without the design of multiple cavities, it is impossible to produce multiple transfer tubes at the same time with each injection, thus failing to significantly improve production efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a transfer pipe injection molding die, comprising an upper fixed plate, an injection port provided inside the upper fixed plate, a female template provided on the lower surface of the upper fixed plate, a male template provided on the lower surface of the female template, a support plate provided on the lower surface of the male template, a partition plate provided on the lower surface of the support plate, a lower fixed plate provided on the lower surface of the partition plate, a limiting post provided on the upper surface of the support plate, the outer wall of the limiting post being slidably connected to the inside of the male template, the outer wall of the limiting post being slidably connected to the inside of the female template, a product body being provided inside the female template and the male template, and a demolding assembly provided on the upper surface of the lower fixed plate.
[0007] Through the above technical solution: The upper fixing plate serves to secure the entire mold. An injection port is located in the center of the upper fixing plate, allowing the injection material to be poured in. A female mold plate is tightly installed below the upper fixing plate, and a male mold plate is installed below the female mold plate. The female and male mold plates can be interlocked and assembled, forming two different cavities within the mold plates. This allows for the injection molding of clean and wastewater connection pipes and wastewater transfer pipes. By setting multiple cavities, the injection efficiency can be improved. In addition, a limit post is installed above the support plate, which allows the female and male mold plates to be vertically aligned and installed, improving the quality of the product body molding.
[0008] As a further description of the above technical solution: The demolding assembly includes an ejector plate, a first spring is provided on the upper surface of the ejector plate, the top end of the first spring is fixedly connected to the inside of the male mold plate, and an ejector pin is provided on the upper surface of the ejector plate, the outer wall of the ejector pin is slidably connected to the inside of the male mold plate and the cooling pipe.
[0009] Through the above technical solution: By driving the ejector plate to slide, the ejector pins can be driven to eject the product. At the same time, a first spring is provided on the upper surface of the ejector plate, which can play a buffering role to make the product more stable for demolding.
[0010] As a further description of the above technical solution: The outer walls of the mother template and the bearing plate are fixedly connected to a connecting plate, and the outer walls of the connecting plate are slidably connected to a reinforcing plate.
[0011] Through the above technical solution: After the mold is assembled, the mother template and the support plate can be reinforced. By setting connecting plates on the outer walls of the mother template and the support plate, the connecting plates can be fixed and locked by the reinforcing plates to achieve the effect of reinforcing the template.
[0012] As a further description of the above technical solution: The reinforcing plate is internally slidably connected to a retaining post, and the outer wall of the retaining post is slidably connected to the inside of the connecting plate.
[0013] Through the above technical solution: By sliding the locking post inside the reinforcing plate, the locking post can be driven to slide inside the connecting plate, thereby achieving the effect of locking the locking post onto the connecting plate.
[0014] As a further description of the above technical solution: A sliding piece is fixedly connected to the outer wall of the locking post, and the outer wall of the sliding piece is slidably connected to the inside of the reinforcing plate.
[0015] Through the above technical solution: The sliding piece installed on the outer wall of the retaining post can cause the second spring to be compressed by sliding the sliding piece inside the reinforcing plate.
[0016] As a further description of the above technical solution: The outer wall of the locking post is provided with a second spring, one end of which is fixedly connected to the inside of the reinforcing plate, and the other end of the reinforcing plate is fixedly connected to the outer wall of the sliding piece.
[0017] Through the above technical solution: The sliding plate acts as a limiter for the second spring, and the second spring can be compressed by sliding the sliding plate.
[0018] As a further description of the above technical solution: The inside of the locking post is rotatably connected to a rotating shaft, and the outer wall of the rotating shaft is fixedly connected to a rotating block. The outer wall of the rotating block is rotatably connected to the outer wall of the reinforcing plate.
[0019] Through the above technical solution: The rotating shaft can cause the locking post to slide by rotating inside the locking post. The rotating block can drive the rotating shaft to rotate by rotating the rotating block. The rotating block is rectangular in shape and can be locked onto the outer wall of the reinforcing plate after rotation.
[0020] As a further description of the above technical solution: The male template is equipped with a cooling pipe inside, which is located inside the female template.
[0021] Through the above technical solution: The male and female molds are equipped with three sets of cooling pipes. The flow of coolant through these multiple sets of cooling pipes can cool the inside of the mold, thereby accelerating product molding.
[0022] This utility model has the following beneficial effects: 1. In this utility model, the cooperation between the upper fixing plate, injection port, female template, male template, cooling pipe, support plate, partition plate, lower fixing plate and limiting post can achieve the effect of high-precision injection molding of products. By designing multiple cavities, multiple transfer pipes can be produced simultaneously in each injection, thereby significantly improving production efficiency.
[0023] 2. In this utility model, the cooperation between the connecting plate, reinforcing plate, locking post, sliding plate, second spring, rotating shaft and rotating block can reinforce the mold, thereby providing a more stable molding environment, reducing the defect rate caused by mold deformation or damage, and thus improving production efficiency and product quality. Attached Figure Description
[0024] Figure 1 This is a perspective view of an injection molding die for a transfer tube according to the present invention. Figure 2 This is a partial structural diagram of the mother template of a transfer pipe injection molding die proposed in this utility model; Figure 3 This is a partial structural diagram of the lower fixing plate of a transfer pipe injection molding die proposed in this utility model; Figure 4 This is a partial structural diagram of the partition plate of the injection molding die for the transfer pipe proposed in this utility model; Figure 5 This is a partial structural diagram of the male template of a transfer pipe injection molding die proposed in this utility model; Figure 6 This is a schematic diagram of a partial structure of the retaining column of a transfer pipe injection molding die proposed in this utility model.
[0025] Legend: 1. Upper fixing plate; 2. Injection port; 3. Female mold plate; 4. Male mold plate; 5. Cooling pipe; 6. Support plate; 7. Partition plate; 8. Lower fixing plate; 9. Limiting post; 10. Product body; 11. Demolding assembly; 1101. Ejector plate; 1102. First spring; 1103. Ejector post; 12. Connecting plate; 13. Reinforcing plate; 14. Locking post; 15. Sliding piece; 16. Second spring; 17. Rotating shaft; 18. Rotating block. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides: a transfer pipe injection molding die, including an upper fixed plate 1, an injection port 2 provided inside the upper fixed plate 1, a female template 3 provided on the lower surface of the upper fixed plate 1, a male template 4 provided on the lower surface of the female template 3, a support plate 6 provided on the lower surface of the male template 4, a partition plate 7 provided on the lower surface of the support plate 6, a lower fixed plate 8 provided on the lower surface of the partition plate 7, a limit post 9 provided on the upper surface of the support plate 6, the outer wall of the limit post 9 is slidably connected to the inside of the male template 4, the outer wall of the limit post 9 is slidably connected to the inside of the female template 3, a product body 10 is provided inside the female template 3 and the male template 4, and a demolding component 11 is provided on the upper surface of the lower fixed plate 8; Specifically, an injection port 2 is provided at the center of the upper fixed plate 1. The injection port 2 is used to inject molten injection molding material. The female template 3 is installed below the upper fixed plate 1 by fixing bolts. The female template 3 has a cavity inside to form the adapter pipe. The female template 3 and the male template 4 can be connected by bolts. The male template 4 also has a cavity inside to form different types of adapter pipes. A support plate 6 is provided below the male template 4. The support plate 6 plays a supporting role. The limiting post 9 can limit the female template 3 and the male template 4 to ensure that the female template 3 and the male template 4 fit tightly and improve the injection accuracy. After the material cools down, the product body 10 can be formed inside the female template 3 and the male template 4.
[0028] Reference Figure 4 The demolding assembly 11 includes an ejector plate 1101, a first spring 1102 is provided on the upper surface of the ejector plate 1101, the top end of the first spring 1102 is fixedly connected to the inside of the male mold plate 4, and an ejector pin 1103 is provided on the upper surface of the ejector plate 1101, the outer wall of the ejector pin 1103 is slidably connected to the inside of the male mold plate 4 and the cooling pipe 5. Specifically, by driving the ejector plate 1101, the first spring 1102 can be compressed, and the first spring 1102 plays a buffering role. The ejector plate 1101 can drive the ejector pin 1103 to eject the injection molding material, thus achieving the effect of automatic demolding.
[0029] Reference Figure 5 and Figure 6A connecting plate 12 is fixedly connected to the outer wall of the mother template 3 and the bearing plate 6, and a reinforcing plate 13 is slidably connected to the outer wall of the connecting plate 12; a locking post 14 is slidably connected inside the reinforcing plate 13, and the outer wall of the locking post 14 is slidably connected to the inside of the connecting plate 12; a sliding piece 15 is fixedly connected to the outer wall of the locking post 14, and the outer wall of the sliding piece 15 is slidably connected to the inside of the reinforcing plate 13; a second spring 16 is provided on the outer wall of the locking post 14, one end of the second spring 16 is fixedly connected to the inside of the reinforcing plate 13, and the other end of the reinforcing plate 13 is fixedly connected to the outer wall of the sliding piece 15; a rotating shaft 17 is rotatably connected inside the locking post 14, and a rotating block 18 is fixedly connected to the outer wall of the rotating shaft 17, and the outer wall of the rotating block 18 is rotatably connected to the outer wall of the reinforcing plate 13; Specifically, the mother template 3 and the bearing plate 6 fix the connecting plate 12, and the connecting plate 12 connects the reinforcing plate 13. The reinforcing plate 13 is used to reinforce the mother template 3 and the bearing plate 6. By driving the reinforcing plate 13 to slide on the outer wall of the connecting plate 12, the rotating block 18 can drive the rotating shaft 17 to rotate inside the locking post 14. The locking post 14 can drive the sliding piece 15 to slide inside the reinforcing plate 13. The sliding piece 15 can drive the second spring 16 to be compressed. The second spring 16 can rebound and drive the locking post 14 to lock the connecting plate 12, thereby limiting the position of the connecting plate 12 and achieving the effect of reinforcing the connection between the mother template 3 and the bearing plate 6.
[0030] Reference Figure 1 The male template 4 is equipped with a cooling pipe 5, which is located inside the female template 3. Specifically, the cooling pipes 5 inside the mold template 4 cool the inside of the mold and accelerate the molding efficiency. There are three sets of cooling pipe channels inside the mold, which can accelerate the cooling efficiency of the raw materials.
[0031] Working principle: When the injection mold is needed, the molten raw material is poured into the injection port 2. The liquid raw material flows through the interior of the female mold plate 3 and the male mold plate 4 into two different cavities to inject different transfer tubes. Coolant is injected through the inlet of the cooling pipe 5. The coolant circulates in the cooling channel to remove the heat in the cavity, thereby achieving the effect of cooling and molding the transfer tube. After the product is cooled, it is ejected and demolded. By driving the ejector plate 1101, the first spring 1102 can be compressed, which in turn drives the ejector pin 1103 to eject and demold the product. When the mold needs to be disassembled, the reinforcing plate 13 is first removed. By rotating the rotating block 18, the rotating shaft 17 can be driven to rotate inside the locking post 14, thereby causing the locking post 14 to slide inside the reinforcing plate 13. At the same time, the sliding piece 15 slides inside the reinforcing plate 13, thereby causing the second spring 16 to be compressed, and thus causing the locking post 14 to slide out of the connecting plate 12. At this time, by causing the reinforcing plate 13 to slide out of the outer wall of the connecting plate 12, the reinforcing plate 13 can be removed from the mold. Then, by removing the bolts connecting the upper fixing plate 1 and the female template 3, and the bolts connecting the female template 3 and the male template 4, the upper fixing plate 1 and the male template 4 can be disassembled, thereby achieving the effect of removing the product. This injection mold not only sets multiple cavities in the mold, so that multiple adapter pipes can be produced simultaneously in each injection cycle, thereby significantly improving production efficiency, but also achieves the effect of quick disassembly and installation of the mold for quick demolding.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adapter tube injection molding mold comprising an upper fixed plate (1), characterized in that: The upper fixing plate (1) is provided with an injection port (2) inside. The lower surface of the upper fixing plate (1) is provided with a female template (3). The lower surface of the female template (3) is provided with a male template (4). The lower surface of the male template (4) is provided with a support plate (6). The lower surface of the support plate (6) is provided with a partition plate (7). The lower surface of the partition plate (7) is provided with a lower fixing plate (8). The upper surface of the support plate (6) is provided with a limit post (9). The outer wall of the limit post (9) is slidably connected to the inside of the male template (4). The outer wall of the limit post (9) is slidably connected to the inside of the female template (3). The product body (10) is provided inside the female template (3) and the male template (4). The upper surface of the lower fixing plate (8) is provided with a demolding component (11).
2. The adapter tube injection molding mold of claim 1, wherein: The demolding assembly (11) includes an ejector plate (1101), on the upper surface of which a first spring (1102) is provided. The top end of the first spring (1102) is fixedly connected to the inside of the male mold plate (4). An ejector pin (1103) is provided on the upper surface of the ejector plate (1101), and the outer wall of the ejector pin (1103) is slidably connected to the inside of the male mold plate (4) and the cooling pipe (5).
3. The adapter tube injection molding mold of claim 1, wherein: The outer walls of the mother template (3) and the support plate (6) are fixedly connected to a connecting plate (12), and the outer walls of the connecting plate (12) are slidably connected to a reinforcing plate (13).
4. The adapter tube injection molding mold of claim 3, wherein: The reinforcing plate (13) is internally slidably connected to a locking post (14), and the outer wall of the locking post (14) is slidably connected to the inside of the connecting plate (12).
5. The adapter tube injection molding mold of claim 4, wherein: The outer wall of the locking post (14) is fixedly connected to a sliding piece (15), and the outer wall of the sliding piece (15) is slidably connected to the inside of the reinforcing plate (13).
6. The injection molding die for a transfer pipe according to claim 5, characterized in that: The outer wall of the locking post (14) is provided with a second spring (16), one end of the second spring (16) is fixedly connected to the inside of the reinforcing plate (13), and the other end of the reinforcing plate (13) is fixedly connected to the outer wall of the sliding piece (15).
7. The injection molding die for a transfer pipe according to claim 4, characterized in that: The inside of the locking post (14) is rotatably connected to a rotating shaft (17), and the outer wall of the rotating shaft (17) is fixedly connected to a rotating block (18), and the outer wall of the rotating block (18) is rotatably connected to the outer wall of the reinforcing plate (13).
8. The injection molding die for a transfer pipe according to claim 1, characterized in that: The male template (4) is provided with a cooling pipe (5), which is located inside the female template (3).