Rubber tee joint injection mold

Abstract

The application relates to a rubber tee pipe injection mold, which comprises oppositely arranged fixed mold plates and movable mold plates, a cavity for forming an outer surface of a tee pipe is formed between the fixed mold plates and the movable mold plates, a core mechanism arranged on the movable mold plates is slid, the core mechanism comprises a first core assembly for forming an inner surface of a first pipe, a second core assembly for forming an inner surface of a second pipe and a third core assembly for forming an inner surface of a third pipe; a pouring channel for injecting rubber melt is arranged on an end surface of the cavity of the fixed mold plate; the first core assembly has a first core main body extending into the cavity, the second core assembly has a second core main body extending into the cavity, and the third core assembly has a third core main body extending into the cavity. The application has the effect of improving the production efficiency of the tee pipe.

Description

Technical Field

[0001] This application relates to the field of injection molds for pipe fittings, and more particularly to an injection mold for a rubber tee pipe fitting. Background Technology

[0002] Rubber tee fittings enable fluid diversion and convergence, providing a flexible connection method for complex piping systems and greatly improving their practicality and functionality. Advanced mold technology ensures precise molding of rubber tee fittings, improving production efficiency and product quality.

[0003] See attached document Figure 1 The tee fitting 1 includes a first pipe 11 connected to a second pipe 12 and a third pipe 13. The diameter of the first pipe 11 is larger than the diameter of the second pipe 12. The axis of the first pipe 11 coincides with the axis of the second pipe 12, and the axis of the third pipe 13 is perpendicular to the axis of the first pipe 11. In related technologies, the molding of tee fittings typically employs a simple core and cavity structure. The core forms the inner surface of the tee fitting, and the cavity forms the outer surface. Molten rubber is injected into the space between the core and the cavity to achieve molding.

[0004] In view of the aforementioned technologies, the inventors believe that there is a need to provide equipment capable of rapidly forming the aforementioned tee fittings. Utility Model Content

[0005] To improve the production efficiency of tee fittings, this application provides an injection mold for rubber tee fittings.

[0006] The technical solution for the injection mold of the rubber tee pipe fitting provided in this application is as follows: An injection mold for a rubber tee fitting includes a fixed mold plate and a movable mold plate arranged opposite to each other, with a cavity formed between the fixed mold plate and the movable mold plate for molding the outer surface of the tee fitting. The mold also includes a core mechanism slidably arranged on the movable mold plate, the core mechanism comprising a first core assembly for molding the inner surface of a first pipe, a second core assembly for molding the inner surface of a second pipe, and a third core assembly for molding the inner surface of a third pipe. The fixed mold plate has a gating channel on its end face for injecting molten rubber. The first core assembly has an extension into the cavity. The first core body of the cavity, the second core assembly having a second core body extending into the cavity, and the third core assembly having a third core body extending into the cavity; the axes of the first core body and the second core body are arranged to coincide, the end of the first core body has a positioning protrusion, and the end of the second core body is provided with a positioning groove for arranging the positioning protrusion; the axis of the third core body is arranged perpendicular to the axis of the second core body, and the end of the third core body is provided with a clearance groove for arranging the side of the second core body.

[0007] By adopting the above technical solution, the operator closes the fixed template and the moving template, and injects the molten rubber into the cavity through the pouring channel. At this time, the cavity formed by the fixed template and the moving template can realize the forming of the outer surface of the tee fitting. The first core component, the second core component, and the third core component of the core mechanism can realize the forming of the inner surface of the tee fitting, thereby realizing the rapid forming of the tee fitting and helping to improve the production efficiency of the tee fitting. The first core body and the second core body are connected by positioning protrusions and positioning grooves to ensure the relative positional accuracy of the two. The clearance groove at the end of the third core body provides space for the side of the second core body, so that each core component can be reasonably arranged, and the overall precise forming of the inner and outer surfaces of the rubber tee fitting is realized.

[0008] Optionally, the first core assembly further includes a first core-pulling slider that drives the first core body to slide. The moving template has a first sliding groove for the first core-pulling slider to slide and be arranged. The moving template has first limiting plates on both sides of the first sliding groove for limiting the two ends of the first core-pulling slider. The fixed template has a first mounting hole on the side facing the moving template that is inclined toward the side away from the cavity and a first inclined guide post is provided in the first mounting hole. The first core-pulling slider has a first inclined guide hole for the first inclined guide post to be inserted.

[0009] By adopting the above technical solution, the first core-pulling slider drives the first core body to slide, the first sliding groove provides sliding space for the first core-pulling slider, the first limiting plate limits the first core-pulling slider to ensure its stable sliding, and the first inclined guide post cooperates with the first inclined guide hole to enable the first core-pulling slider to achieve accurate core-pulling and resetting actions during the mold opening and closing process, which helps to improve the working stability and molding efficiency of the rubber tee pipe injection mold.

[0010] Optionally, the first core-pulling slider is provided with a first inclined surface on the side away from the first core body, and the first inclined surface is arranged parallel to the axis of the first inclined guide post; the fixed template is provided with a first abutting block, and the first abutting block is provided with a first guide surface that cooperates with the first inclined surface on the side facing the first core-pulling slider.

[0011] By adopting the above technical solution, the cooperation between the first inclined surface and the first guide surface provides more precise guidance for the sliding of the first core-pulling slider, making the movement of the first core body more stable, and improving the opening and closing accuracy of the rubber tee pipe injection mold and the molding quality of the rubber tee pipe.

[0012] Optionally, the second core assembly further includes a second core-pulling slider that drives the second core body to slide. The moving template has a second sliding groove for the second core-pulling slider to slide and arrange. The moving template has second limiting plates on both sides of the second sliding groove for limiting the two ends of the second core-pulling slider. The fixed template has a second mounting hole on the side facing the moving template that is inclined away from the cavity and a second inclined guide post is provided in the second mounting hole. The second core-pulling slider has a second inclined guide hole for the second inclined guide post to be inserted.

[0013] By adopting the above technical solution, the second core body is driven to slide by the second core-pulling slider, the second sliding groove provides sliding space for the second core-pulling slider, the second limiting plate limits the second core-pulling slider to ensure its stable sliding, and the second inclined guide post and the second inclined guide hole cooperate to enable the second core-pulling slider to achieve accurate core-pulling and resetting actions during the mold opening and closing process, which helps to improve the working stability and molding efficiency of the rubber tee pipe injection mold.

[0014] Optionally, the second core-pulling slider is provided with a second inclined surface on the side away from the second core body, and the second inclined surface is arranged parallel to the axis of the second inclined guide post; the fixed template is provided with a second abutting block, and the second abutting block is provided with a second guide surface that cooperates with the second inclined surface on the side facing the second core-pulling slider.

[0015] By adopting the above technical solution, the cooperation between the second inclined surface and the second guide surface provides more precise guidance for the sliding of the second core-pulling slider, making the movement of the second core body more stable, and improving the opening and closing accuracy of the rubber tee pipe injection mold and the molding quality of the rubber tee pipe.

[0016] Optionally, the third core assembly further includes a third core-pulling slider for driving the third core body to slide. The moving template has a third sliding groove for the third core-pulling slider to slide. The moving template has third limiting plates on both sides of the third sliding groove for limiting the ends of the third core-pulling slider. The fixed template has a third mounting hole on the side facing the moving template that is inclined away from the cavity and a third inclined guide post is provided in the third mounting hole. The third core-pulling slider has a third inclined guide hole for the third inclined guide post to be inserted.

[0017] By adopting the above technical solution, the third core body is driven to slide by the third core-pulling slider, the third sliding groove provides sliding space for the third core-pulling slider, the third limiting plate limits the third core-pulling slider to ensure its stable sliding, and the cooperation between the third inclined guide post and the third inclined guide hole enables the third core-pulling slider to achieve accurate core-pulling and resetting actions during the mold opening and closing process, which helps to improve the working stability and molding efficiency of the rubber tee pipe injection mold.

[0018] Optionally, the third core-pulling slider is provided with a third inclined surface on the side away from the third core body, and the third inclined surface is arranged parallel to the axis of the third inclined guide post; the fixed template is provided with a third abutting block, and the third abutting block is provided with a third guide surface that cooperates with the third inclined surface on the side facing the third core-pulling slider.

[0019] By adopting the above technical solution, the cooperation between the third inclined surface and the third guide surface provides more precise guidance for the sliding of the third core-pulling slider, making the movement of the third core body more stable, and improving the opening and closing accuracy of the rubber tee pipe injection mold and the molding quality of the rubber tee pipe.

[0020] Optionally, it also includes a pin assembly for preventing the tee fitting from falling off. The pin assembly includes a pin plate arranged parallel to the movable template on the side away from the fixed template, multiple pin rods arranged on the movable plate facing the movable template, a positioning post installed between the pin plate and the movable template, and a support spring arranged on the positioning post. The movable end of the pin rod abuts against the outer end face of the tee fitting. The movable template has clearance holes that penetrate the inner and outer surfaces for accommodating the pin rods. The fixed template has positioning holes for accommodating the positioning post through sliding.

[0021] By adopting the above technical solution, the ejector rod of the ejector assembly abuts against the outer end face of the tee fitting, and in conjunction with the positioning pin and support spring, the tee fitting can be effectively prevented from falling off during the mold opening and closing process, ensuring the stability and processing continuity of the tee fitting after molding.

[0022] Optionally, the number of cavities is two, and the two cavities are arranged at intervals between the fixed template and the moving template. The moving template is provided with a core mechanism in each of the two cavities for forming the inner surface of the tee fitting.

[0023] By adopting the above technical solution, two tee fittings can be formed and processed at the same time, which improves the production efficiency of tee fittings. Moreover, each cavity has an independent core mechanism, which helps to ensure the forming quality of the inner surface of the fitting.

[0024] Optionally, the casting channel includes a main channel connected to the outer end of the fixed template and used for inputting rubber melt, and two branch channels connected to the output end of the main channel and corresponding one-to-one with the two cavities.

[0025] By adopting the above technical solution, the rubber melt can be input from the outer end of the fixed template through the main channel, and then transported to the two cavities through the branch channels, so as to realize the simultaneous injection of rubber melt into the two cavities, which helps to improve the production efficiency of tee fittings.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. A rubber tee pipe fitting injection mold, comprising a fixed mold plate, a movable mold plate, and a core mechanism; the operator closes the fixed mold plate and the movable mold plate, and injects molten rubber into the cavity through the gating channel. At this time, the cavity formed by the fixed mold plate and the movable mold plate can realize the forming of the outer surface of the tee pipe fitting, and the first core component, the second core component, and the third core component of the core mechanism can realize the forming of the inner surface of the tee pipe fitting, thereby realizing the rapid forming of the tee pipe fitting and improving the production efficiency of the tee pipe fitting; 2. The first core body is driven to slide by the first core-pulling slider. The first sliding groove provides sliding space for the first core-pulling slider. The first limiting plate limits the first core-pulling slider to ensure its stable sliding. The first inclined guide post and the first inclined guide hole cooperate to enable the first core-pulling slider to achieve accurate core-pulling and resetting actions during the mold opening and closing process, which helps to improve the working stability and molding efficiency of the rubber tee pipe injection mold. 3. By utilizing the cooperation between the first inclined surface and the first guide surface, more precise guidance is provided for the sliding of the first core-pulling slider, making the movement of the first core body more stable, and improving the opening and closing accuracy of the rubber tee pipe injection mold and the molding quality of the rubber tee pipe. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a tee fitting in an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the structure of the injection mold for the rubber tee fitting in the embodiments of this application.

[0029] Figure 3 This is a cross-sectional schematic diagram of the rubber tee pipe fitting injection mold along the axial direction of the first core body in the embodiment of this application.

[0030] Figure 4 This is a schematic diagram showing the cooperation of the first core body, the second core body, and the third core body in the embodiments of this application.

[0031] Figure 5 This is a schematic diagram of the pouring channel in an embodiment of this application.

[0032] Figure 6 This is a schematic diagram of the arrangement of the core mechanism and the moving template in the embodiments of this application.

[0033] Figure 7 This is a schematic diagram of the structure of the first core assembly and the second core assembly in the embodiments of this application.

[0034] Figure 8 yes Figure 7 A schematic diagram showing the fit between the first core body and the second core body at point A in the middle.

[0035] Figure 9 This is a schematic diagram of the structure of the third core component in the embodiments of this application.

[0036] Figure 10 This is a schematic diagram of the cooperation between the moving template and the ejector pin assembly in an embodiment of this application.

[0037] Figure 11 This is a schematic diagram of the fit between the positioning post and the positioning hole in an embodiment of this application.

[0038] Explanation of reference numerals in the attached drawings: 1. Tee fitting; 11. First pipe; 12. Second pipe; 13. Third pipe; 2. Fixed template; 21. Pouring channel; 211. Main channel; 212. Branch channel; 221. First mounting hole; 222. First inclined guide post; 223. First mounting groove; 224. First abutment block; 2241. First guide surface; 231. Second mounting hole; 232. Second inclined guide post; 233. Second mounting groove; 234. Second abutment block; 2341. Second guide surface; 241. Third mounting hole; 242. Third inclined guide post; 243. Third mounting groove; 244. Third abutment block; 2441. Third guide surface; 3. Moving template; 311. First sliding groove; 312. First limiting plate; 321. Second sliding groove; 322. Second limiting plate; 331. 3. Three sliding grooves; 332. Third limiting plate; 34. Clearance hole; 35. Limiting groove; 36. Positioning hole; 4. Core mechanism; 41. First core assembly; 411. First core body; 4111. Positioning protrusion; 412. First core-pulling slider; 4121. First oblique guide hole; 4122. First inclined surface; 42. Second core assembly; 421. Second core body; 4211. Positioning groove; 422. Second core-pulling slider; 4221. Second oblique guide hole; 4222. Second inclined surface; 43. Third core assembly; 431. Third core body; 4311. Clearance groove; 432. Third core-pulling slider; 4321. Third oblique guide hole; 4322. Third inclined surface; 5. Ejector assembly; 51. Ejector plate; 52. Ejector rod; 53. Positioning post; 54. Support spring; 6. Cavity. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0040] This application discloses an injection mold for a rubber tee fitting. The structure of the tee fitting involved in this embodiment can be referenced from [other sources]. Figure 1 This will not be cited separately in the following text.

[0041] Reference Figure 2 and Figure 3 The injection mold for the rubber tee fitting includes a fixed mold plate 2, a movable mold plate 3, a core mechanism 4, and an ejector pin assembly 5. The fixed mold plate 2 is vertically arranged, and the movable mold plate 3 is arranged parallel to the fixed mold plate 2 and slides along a length direction perpendicular to the fixed mold plate 2. A cavity 6 is formed between the fixed mold plate 2 and the movable mold plate 3 for molding the outer surface of the tee fitting 1. A gating channel 21 for injecting molten rubber into the cavity 6 is provided on the end face of the fixed mold plate 2.

[0042] Reference Figure 4 and Figure 5The mold cavity 6 has two cavities, which are spaced apart between the fixed mold plate 2 and the moving mold plate 3. The casting channel 21 includes a main channel 211 connected to the outer end of the fixed mold plate 2 for input of rubber melt, and two branch channels 212 connected to the output end of the main channel 211 and corresponding one-to-one with the two cavities 6. The moving mold plate 3 is provided with a core mechanism 4 in each of the two cavities 6 for forming the inner surface of the tee fitting 1.

[0043] Reference Figure 6 and Figure 7 The core mechanism 4 includes a first core assembly 41 for forming the inner surface of the first pipe 11, a second core assembly 42 for forming the inner surface of the second pipe 12, and a third core assembly 43 for forming the inner surface of the third pipe 13. The first core assembly 41 includes a first core body 411 extending into the cavity 6 and a first core-pulling slider 412 for driving the first core body 411 to slide. The moving template 3 has a first sliding groove 311 for the first core-pulling slider 412 to slide, and first limiting plates 312 for limiting the two ends of the first core-pulling slider 412 are provided on both sides of the first sliding groove 311.

[0044] Reference Figure 6 and Figure 7 The fixed template 2 has a first mounting hole 221 on the side facing the moving template 3, which is arranged outward at an angle. A first inclined guide post 222 is provided in the first mounting hole 221. The first core-pulling slider 412 has a first inclined guide hole 4121 that penetrates the inner and outer surfaces and is used for the insertion of the first inclined guide post 222. The first core-pulling slider 412 has a first inclined surface 4122 on its outer side, which is arranged parallel to the axis of the first inclined guide post 222. The fixed template 2 has a first mounting groove 223 at the outer end of the first core-pulling slider 412, and a first abutting block 224 is arranged in the first mounting groove 223 for the first inclined surface 4122 to abut against. The first abutting block 224 has a first guide surface 2241 on the side facing the first inclined surface 4122 that slides and cooperates with the first inclined surface 4122.

[0045] Reference Figure 7 and Figure 8 The second core assembly 42 includes a second core body 421 extending into the cavity 6 and a second core-pulling slider 422 for driving the second core body 421 to slide. The axis of the second core body 421 coincides with that of the first core body 411. The end of the first core body 411 has a positioning protrusion 4111, and the end of the second core body 421 is provided with a positioning groove 4211 for accommodating the positioning protrusion 4111.

[0046] Reference Figure 6The moving template 3 has a second sliding groove 321 for the second core-pulling slider 422 to slide and be arranged, and a second limiting plate 322 for limiting the two ends of the second core-pulling slider 422 is provided on both sides of the second sliding groove 321.

[0047] Reference Figure 7 The fixed template 2 has a second mounting hole 231 on the side facing the moving template 3, which is arranged at an angle to the outside. A second inclined guide post 232 is provided in the second mounting hole 231. The second core-pulling slider 422 has a second inclined guide hole 4221 that penetrates the inner and outer surfaces and is used for the insertion of the second inclined guide post 232. The second core-pulling slider 422 has a second inclined surface 4222 on its outer side, which is arranged parallel to the axis of the second inclined guide post 232. The fixed template 2 has a second mounting groove 233 at the outer end of the second core-pulling slider 422. A second abutting block 234 is arranged in the second mounting groove 233 for the second inclined surface 4222 to abut against. The second abutting block 234 has a second guide surface 2341 on the side facing the second core-pulling slider 422 that cooperates with the second inclined surface 4222.

[0048] Reference Figure 6 and Figure 9 The third core assembly 43 includes a third core body 431 extending into the cavity 6 and a third core-pulling slider 432 for driving the third core body 431 to slide. The axis of the third core body 431 is arranged perpendicular to the axis of the second core body 421, and the end of the third core body 431 is provided with a clearance groove 4311 for the side of the second core body 421 to be arranged. The moving template 3 is provided with a third sliding groove 331 for the third core-pulling slider 432 to slide, and third limiting plates 332 are provided on both sides of the third sliding groove 331 for limiting the ends of the third core-pulling slider 432.

[0049] Reference Figure 9 The fixed template 2 has a third mounting hole 241 on the side facing the moving template 3, which is arranged outward at an angle. A third inclined guide post 242 is provided in the third mounting hole 241. The third core-pulling slider 432 has a third inclined guide hole 4321 that penetrates the inner and outer surfaces and is used for the insertion of the third inclined guide post 242. The third core-pulling slider 432 has a third inclined surface 4322 on its outer side, which is arranged parallel to the axis of the second inclined guide post 232. The fixed template 2 has a third mounting groove 243 at the outer end of the third core-pulling slider 432. A third abutting block 244 is arranged in the third mounting groove 243 for the third inclined surface 4322 to abut against. The third abutting block 244 has a third guide surface 2441 on the side facing the third core-pulling slider 432 that cooperates with the third inclined surface 4322.

[0050] Reference Figure 10 and Figure 11The ejector assembly 5 is arranged on the side of the moving template 3 away from the fixed template 2 and is used to prevent the tee fitting 1 from falling off. It includes an ejector plate 51 arranged parallel to the moving template 3 away from the fixed template 2, multiple ejector rods 52 arranged on the side of the moving plate facing the moving template 3, a positioning post 53 installed between the ejector plate 51 and the moving template 3, and a support spring 54 arranged on the positioning post 53. The multiple ejector rods 52 are arranged parallel to the sliding direction of the ejector plate 51, and the movable end of the ejector rod 52 abuts against the outer end face of the tee fitting 1. The moving template 3 has a clearance hole 34 on the end face of the cavity 6, penetrating the inner and outer surfaces for the ejector rods 52 to be arranged. The moving template 3 has a limiting groove 35 on the side facing the ejector plate 51 for one end of the support spring 54 to be arranged. One end of the support spring 54 abuts against the ejector plate 51 and the other end abuts against the bottom of the limiting groove 35, so that the movable end of the ejector rod 52 always has a tendency to move into the cavity 6. In this embodiment, there are four positioning pins 53, which are symmetrically arranged at the four corners of the ejector plate 51. Each of the four positioning pins 53 is fitted with a support spring 54. The template 2 has four positioning holes 36 at the bottom of the four limiting grooves 35 for the four positioning pins 53 to slide one by one.

[0051] The implementation principle of the rubber tee pipe fitting injection mold in this application embodiment is as follows: The operator closes the fixed mold plate 2 and the moving mold plate 3, and injects the rubber melt into the cavity 6 through the gating channel 21. At this time, the cavity 6 formed by the fixed mold plate 2 and the moving mold plate 3 can realize the forming of the outer surface of the tee pipe fitting 1. The first core component 41, the second core component 42, and the third core component 43 of the core mechanism 4 can realize the forming of the inner surface of the tee pipe fitting 1, thereby realizing the rapid forming of the tee pipe fitting 1. After the tee pipe fitting 1 is formed, the operator closes the fixed mold plate 2 and the moving mold plate 3. When plate 2 and moving platen 3 open the mold, the moving platen 3 moves away from the fixed platen 2, thereby driving the core mechanism 4 to move. This causes the first core assembly 41, the second core assembly 42, and the third core assembly 43 to slide along the length of the first inclined guide post 222, the second inclined guide post 232, and the third inclined guide post 242, respectively. This causes the first core body 411, the second core body 421, and the third core body 431 to detach from the inside of the first pipe 11, the second pipe 12, and the third pipe 13, respectively, thereby achieving rapid demolding of the tee fitting 1.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An injection mold for a rubber tee fitting, comprising a fixed mold plate (2) and a movable mold plate (3) arranged opposite to each other, wherein a cavity (6) for forming the outer surface of a tee fitting (1) is formed between the fixed mold plate (2) and the movable mold plate (3), characterized in that, It also includes a core mechanism (4) slidably arranged on the moving template (3), the core mechanism (4) including a first core assembly (41) for forming the inner surface of the first pipe (11), a second core assembly (42) for forming the inner surface of the second pipe (12), and a third core assembly (43) for forming the inner surface of the third pipe (13); the fixed template (2) has a casting channel (21) for injecting rubber melt at the end face of the cavity (6); the first core assembly (41) has a first core body (411) extending into the cavity (6), the second core assembly (42) has a second core body (421) extending into the cavity (6), and the... The third core assembly (43) has a third core body (431) extending into the cavity (6); the axes of the first core body (411) and the second core body (421) are arranged to coincide, the end of the first core body (411) has a positioning protrusion (4111), and the end of the second core body (421) is provided with a positioning groove (4211) for the positioning protrusion (4111) to be arranged; the axis of the third core body (431) is arranged perpendicular to the axis of the second core body (421), and the end of the third core body (431) is provided with a clearance groove (4311) for the side of the second core body (421) to be arranged.

2. The injection mold for a rubber tee pipe fitting according to claim 1, characterized in that, The first core assembly (41) further includes a first core-pulling slider (412) for driving the first core body (411) to slide. The moving template (3) is provided with a first sliding groove (311) for the first core-pulling slider (412) to slide. The moving template (3) is provided with first limiting plates (312) on both sides of the first sliding groove (311) for limiting the two ends of the first core-pulling slider (412). The fixed template (2) is provided with a first mounting hole (221) on the side facing the moving template (3) and inclined to the side away from the cavity (6). A first inclined guide post (222) is provided in the first mounting hole (221). The first core-pulling slider (412) is provided with a first inclined guide hole (4121) for the first inclined guide post (222) to be inserted.

3. The injection mold for a rubber tee pipe fitting according to claim 2, characterized in that, The first core-pulling slider (412) has a first inclined surface (4122) on the side away from the first core body (411), and the first inclined surface (4122) is arranged parallel to the axis of the first inclined guide post (222); the fixed template (2) is provided with a first abutting block (224), and the first abutting block (224) has a first guide surface (2241) on the side facing the first core-pulling slider (412) that cooperates with the first inclined surface (4122).

4. The injection mold for a rubber tee pipe fitting according to claim 1, characterized in that, The second core assembly (42) further includes a second core-pulling slider (422) for driving the second core body (421) to slide. The moving template (3) is provided with a second sliding groove (321) for the second core-pulling slider (422) to slide. The moving template (3) is provided with second limiting plates (322) on both sides of the second sliding groove (321) for limiting the two ends of the second core-pulling slider (422). The fixed template (2) is provided with a second mounting hole (231) on the side facing the moving template (3) and inclined to the side away from the cavity (6). A second inclined guide post (232) is provided in the second mounting hole (231). The second core-pulling slider (422) is provided with a second inclined guide hole (4221) for the second inclined guide post (232) to be inserted.

5. The injection mold for a rubber tee pipe fitting according to claim 4, characterized in that, The second core-pulling slider (422) has a second inclined surface (4222) on the side away from the second core body (421), and the second inclined surface (4222) is arranged parallel to the axis of the second inclined guide post (232); the fixed template (2) is provided with a second abutting block (234), and the second abutting block (234) has a second guide surface (2341) on the side facing the second core-pulling slider (422) that cooperates with the second inclined surface (4222).

6. The injection mold for a rubber tee pipe fitting according to claim 1, characterized in that, The third core assembly (43) further includes a third core-pulling slider (432) for driving the third core body (431) to slide. The moving template (3) is provided with a third sliding groove (331) for the sliding arrangement of the third core-pulling slider (432). The moving template (3) is provided with a third limiting plate (332) on both sides of the third sliding groove (331) for limiting the two ends of the third core-pulling slider (432). The fixed template (2) is provided with a third mounting hole (241) on the side facing the moving template (3) that is inclined toward the side away from the cavity (6) and a third inclined guide post (242) is provided in the third mounting hole (241). The third core-pulling slider (432) is provided with a third inclined guide hole (4321) for the insertion of the third inclined guide post (242).

7. The injection mold for a rubber tee pipe fitting according to claim 6, characterized in that, The third core-pulling slider (432) has a third inclined surface (4322) on the side away from the third core body (431), and the third inclined surface (4322) is arranged parallel to the axis of the third inclined guide post (242); the fixed template (2) is provided with a third abutting block (244), and the third abutting block (244) has a third guide surface (2441) on the side facing the third core-pulling slider (432) that cooperates with the third inclined surface (4322).

8. The injection mold for a rubber tee pipe fitting according to claim 1, characterized in that, It also includes a pin assembly (5) for preventing the tee fitting (1) from falling off. The pin assembly (5) includes a pin plate (51) arranged parallel to the side of the moving template (3) away from the fixed template (2), multiple pin rods (52) arranged on the side of the movable plate facing the moving template (3), a positioning post (53) installed between the pin plate (51) and the moving template (3), and a support spring (54) arranged on the positioning post (53). The movable end of the pin rod (52) abuts against the outer end face of the tee fitting (1). The moving template (3) has a clearance hole (34) that penetrates the inner and outer surfaces and is used for the arrangement of the pin rod (52). The fixed template (2) has a positioning hole (36) for the sliding arrangement of the positioning post (53).

9. The injection mold for a rubber tee pipe fitting according to claim 1, characterized in that, The number of cavities (6) is two, and the two cavities (6) are arranged at intervals between the fixed template (2) and the moving template (3). The moving template (3) is provided with the core mechanism (4) for forming the inner surface of the tee fitting (1) in both cavities (6).

10. The injection mold for a rubber tee pipe fitting according to claim 9, characterized in that, The casting channel (21) includes a main channel (211) connected to the outer end of the fixed template (2) and used for input of rubber melt, and two branch channels (212) connected to the output end of the main channel (211) and corresponding one-to-one with the two cavities (6).

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