Insert and three-way pipe machining die thereof

Abstract

The insert comprises an insert body and a metal sleeve head, the insert body is provided with a combination end and an assembly end which are oppositely arranged, the end face of the combination end of the insert body is provided with a strip-shaped groove and a pore-forming structure, the strip-shaped groove is arranged around the pore-forming structure, and the metal sleeve head is arranged on the metal sleeve head. The metal sleeve head is arranged at the combination end of the insert body in a sleeving mode, and an avoiding hole is formed in the middle of the metal sleeve head and used for avoiding the strip-shaped groove and the pore-forming structure. The metal sleeve head is arranged at the assembling end of the insert body, so that the shrinkage amount of plastic can be effectively compensated, additional support and stability can be provided, and it is ensured that the flatness of the sealing face of the oil way control three-way pipe meets the requirement. And due to the combined design of the metal sleeve head and the insert body made of the conventional material, the production cost is effectively reduced by reducing the use amount of metal materials while enough strength and stability are kept.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an insert and a tee pipe processing mold. Background Technology

[0002] With the rapid development of the automotive industry and continuous technological advancements, the performance and precision requirements of vehicle fuel system control systems are becoming increasingly stringent. As a core component of this system, the fuel control tee plays a crucial role in distributing, guiding, and controlling the flow of fuel or lubricating oil. Its precision, durability, and sealing performance directly affect the efficiency, reliability, and safety of the entire powertrain system.

[0003] In the injection molding process of traditional hydraulic control tee pipes, a common and challenging problem is the uneven wall thickness of the plastic parts. Due to factors such as design complexity, difficulty in controlling injection molding process parameters, and limitations of mold structure, the finished product often exhibits significant differences in plastic wall thickness across different areas. This uneven wall thickness not only increases the uneven distribution of thermal stress during product cooling but also significantly exacerbates shrinkage deformation after molding, particularly affecting the flatness of the sealing surface, making it difficult to meet the stringent requirements of the automotive industry for high-precision, high-flatness sealing surfaces. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides an insert and a tee tube processing mold, which can solve the problem of large shrinkage deformation caused by uneven plastic thickness.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] An insert, comprising:

[0007] An insert body has a mating end and an assembly end that are disposed opposite to each other. The mating end face of the insert body is provided with a strip groove and a hole structure, and the strip groove is arranged around the hole structure.

[0008] A metal sleeve is fitted onto the mating end of the insert body. The metal sleeve has a clearance hole in the middle to avoid the strip groove and the hole structure.

[0009] By adopting the above solution, the metal sleeve at the assembly end of the insert body effectively compensates for the shrinkage of the plastic, provides additional support and stability, and ensures that the flatness of the sealing surface of the oil circuit control tee meets the requirements. Furthermore, the combination design of the metal sleeve and the conventional material insert body maintains sufficient strength and stability while effectively reducing production costs by minimizing the amount of metal used. Conventional materials are also lower in cost and easier to process than metals. This structure also aligns with the trend towards lightweighting, helping to reduce the overall weight of the mold and lower energy consumption. The perforated structure allows for the formation of one of the through holes in the tee on the sealing surface during the molding of the oil circuit control tee. The strip-shaped groove surrounding the perforated structure creates a strip-shaped protrusion on the sealing surface corresponding to the groove during the molding of the oil circuit control tee, facilitating the circumferential setting of the sealing structure around the through hole and ensuring the sealing effect of the sealing surface.

[0010] Furthermore, the hole-forming structure includes an assembly hole and a rod. The assembly hole is disposed through the insert body, and the rod is disposed through the assembly hole. An annular gap is formed between the portion of the rod that extends out of the assembly hole and the assembly hole.

[0011] By adopting the above scheme, the annular gap design allows the plastic material to fill the gap between the rod and the assembly hole during the molding of the tee tube, forming an annular protrusion on the sealing surface, thus facilitating the setting of a sealing structure around the circumference of the through hole. The rod design is very flexible and can be set into different forms according to actual needs, such as a core-pulling rod or a material conveying tube. When the rod is set as a core-pulling rod, it can be pulled out after injection molding, making it easier to remove the molded tee tube from the mold and simplifying the demolding process; when the rod is set as a material conveying tube, it facilitates the material flow during the molding of the tee tube.

[0012] Furthermore, the rod includes a first rod and a second rod, one end of the second rod passing through the assembly hole and fitting against the assembly hole, and the first rod passing through the second rod and exiting the assembly hole.

[0013] By adopting the above solution, and by fitting one end of the second rod into the mounting hole, the stable positioning of the second and first rods within the insert body can be ensured, thereby improving the stability of the entire insert structure. The design of the first rod passing through the second rod and exiting the mounting hole allows the plastic material to tightly wrap around the rod during injection molding, forming a good sealing effect.

[0014] Furthermore, the hole-forming structure is an annular groove.

[0015] By adopting the above scheme, the design of the annular groove can form a through hole during the forming of the tee tube, and the annular groove structure is simple and convenient for the production of the insert body.

[0016] Furthermore, the strip groove is arranged in a ring around the hole-forming structure, and the ring-shaped strip groove and the hole-forming structure are concentrically arranged.

[0017] By adopting the above scheme, the strip groove will form a corresponding strip protrusion on the sealing surface during the forming of the tee pipe. The hole-forming structure is used to form a through hole during the forming of the tee pipe. The annular strip groove and the hole-forming structure are set concentrically. The corresponding strip protrusion and the through hole on the sealing surface of the tee pipe are concentric, thereby making the sealing effect of the sealing structure set at the strip protrusion better.

[0018] In addition, the concentric arrangement of the grooves and the hole structure helps to ensure that the plastic material fills the hole structure evenly during the injection molding process, thereby enhancing the stability of the overall structure and reducing deformation caused by uneven stress.

[0019] Furthermore, the insert body includes a first main body segment and a second main body segment. The strip groove and the hole structure are both provided in the first main body segment. The second main body segment protrudes from the first main body segment. The portion of the second main body segment protruding from the first main body segment forms a first stepped surface. The side of the metal sleeve away from the joint end abuts against the first stepped surface.

[0020] By adopting the above scheme, the second main body segment protrudes from the first step surface formed by the first main body segment and abuts against the metal sleeve head, which can ensure the accurate position of the metal sleeve head on the insert body, enhance the stability of the overall structure, and the existence of the first step surface provides a clear positioning reference for the metal sleeve head, simplifying the assembly process and improving assembly efficiency.

[0021] Furthermore, the mating end of the insert body is provided with a mating platform, the strip groove and the hole structure are both provided on the mating platform, the insert body protrudes circumferentially from the mating platform, the portion of the insert body protruding from the mating platform forms a second step surface, and the mating platform is located inside the metal sleeve.

[0022] By adopting the above scheme, the mating platform is located at the metal sleeve, that is, the insert body and the metal sleeve form a cavity at the second step surface, thereby leaving a certain airflow space between the insert body and the metal sleeve, which facilitates demolding after the T-shaped pipe is processed.

[0023] Furthermore, the mounting end of the insert body is provided with a boss.

[0024] By adopting the above solution, the boss design makes it easier to install and position the insert body with the mold plate. The boss can serve as a positioning reference, ensuring the accurate position of the insert in the mold plate, simplifying the installation process and improving assembly efficiency. Furthermore, the boss increases the contact area between the insert body and the mold plate, thereby improving the stability of the insert in the mold plate and reducing possible displacement during injection molding.

[0025] Furthermore, a limiting structure is provided on one side of the boss.

[0026] By adopting the above scheme, the design of the limiting structure can effectively prevent the insert body from rotating during use and ensure the stability of the insert body's position.

[0027] This utility model also provides a tee pipe processing mold, including an upper template, a lower template and the aforementioned insert, wherein the insert is disposed through the upper template or the lower template.

[0028] By adopting the above scheme, the insert design ensures a high-quality sealing surface during the molding of the tee pipe. By setting strip grooves and perforated structures on the insert body, corresponding strip protrusions and through holes can be formed during molding, thereby improving the sealing effect. The combined design of the metal sleeve and the insert body provides additional support and stability, ensuring that the flatness of the tee pipe sealing surface meets requirements and reducing shrinkage deformation caused by uneven plastic thickness.

[0029] In summary, the insert and its tee pipe processing mold provided by this utility model have the following technical effects:

[0030] 1. The metal end cap can effectively compensate for the shrinkage of plastic and reduce shrinkage and deformation caused by uneven plastic thickness.

[0031] 2. The metal sleeve provides additional support and stability to the sealing surface of the oil circuit control tee, ensuring that the flatness of the sealing surface meets the requirements.

[0032] 3. The combination design of the metal sleeve head and the conventional material insert body reduces the amount of metal material used, effectively reducing production costs.

[0033] 4. Insert bodies made of conventional materials are less expensive and easier to process than insert bodies made of metal materials. At the same time, this structure conforms to the trend of lightweighting, which helps to reduce the weight of the entire mold and reduce energy consumption.

[0034] 5. The perforated structure can form one of the through holes of the tee on the sealing surface when the oil circuit control tee is formed.

[0035] 6. The strip-shaped groove is designed around the hole structure, so that when the tee pipe is formed, a strip-shaped protrusion will appear on the sealing surface corresponding to the strip-shaped groove, which facilitates the setting of the sealing structure around the through hole and ensures the sealing effect of the sealing surface. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural diagram of the three-way pipe of this utility model;

[0037] Figure 2 This is a three-dimensional structural diagram of the insert of this utility model;

[0038] Figure 3 This is a schematic diagram of the exploded structure of the insert of this utility model;

[0039] Figure 4 This is a schematic diagram of the rod structure of this utility model;

[0040] Figure 5 This is a schematic diagram of the fit between the insert body, the metal sleeve, and the tee tube of this utility model.

[0041] Figure 6 This is a schematic diagram of the core structure of the tee pipe processing mold of this utility model;

[0042] Figure 7 This is a schematic diagram of the cross-sectional structure of the mold core of this utility model;

[0043] Figure 8 This is an exploded structural diagram of the tee pipe of this utility model compared to the lower template and insert;

[0044] Figure 9 This is a schematic diagram of the assembly structure of the boss and the lower template of this utility model.

[0045] The meanings of the reference numerals in the attached drawings are as follows: 1. Insert body; 11. Connecting end; 12. Assembly end; 13. Strip groove; 14. Hole structure; 141. Assembly hole; 142. Rod; 1421. First rod; 1422. Second rod; 15. First main body section; 16. Second main body section; 161. First step surface; 17. Connecting platform; 171. Second step surface; 18. Boss; 181. Limiting structure; 2. Metal sleeve; 21. Clearance hole; 3. Upper template; 4. Lower template; 5. Side core pulling module; 6. Pipeline; 7. T-pipe; 71. Sealing surface; 72. Strip protrusion; 73. Through hole. Detailed Implementation

[0046] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0047] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0048] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0050] See Figures 1-5 This utility model discloses an insert, including an insert body 1 and a metal sleeve 2. The insert body 1 has a connecting end 11 and an assembly end 12 arranged opposite to each other. The connecting end 11 of the insert body 1 is provided with a strip groove 13 and a hole structure 14. The strip groove 13 is arranged around the hole structure 14. The metal sleeve 2 is sleeved on the connecting end 11 of the insert body 1. The metal sleeve 2 is provided with an avoidance hole 21 in the middle to avoid the strip groove 13 and the hole structure 14.

[0051] Specifically, the insert body 1 has a mating end 11 and an assembly end 12 arranged opposite to each other. The end face of the mating end 11 of the insert body 1 is mainly used for forming the sealing surface 71 of the tee pipe 7. The insert body 1 has a strip groove 13 and a hole structure 14 on the end face of its mating end 11. The hole structure 14 is used to form a through hole 73 on the sealing surface 71 when the tee pipe 7 is formed. The strip groove 13 is arranged around the hole structure 14, which allows the forming material to flow into the strip groove 13 when the tee pipe 7 is formed, forming an annular protrusion on the sealing surface 71, which facilitates the setting of the sealing structure, such as facilitating the connection of the connecting pipe 6. Of course, it can also be used to place sealing rings, sealing gaskets and other structures with sealing effects. The assembly end 12 of the insert body 1 is used for the installation of the insert body 1, so that the mating end 11 of the insert body 1 can stably cooperate with the sealing surface 71 of the tee pipe 7 during forming. The metal sleeve 2 is fitted onto the mating end 11 of the insert body 1. The metal sleeve 2 is made of a single metal or alloy, such as iron, steel, or copper, and only requires good chemical stability and strength. The metal sleeve 2 is provided with a clearance hole 21 to avoid the strip groove 13 and the hole structure 14. That is, the strip groove 13 and the hole structure 14 are located within the clearance range of the clearance hole 21, ensuring that the molding material can flow into the strip groove 13 and the hole structure 14 during the molding of the tee tube 7.

[0052] See Figure 2 and Figure 3 As shown, in some embodiments, the hole structure 14 includes an assembly hole 141 and a rod 142. The assembly hole 141 is disposed through the insert body 1, and the rod 142 is disposed through the assembly hole 141. A ring gap is formed between the part of the rod 142 that extends out of the assembly hole 141 and the assembly hole 141.

[0053] Specifically, the portion of rod 142 extending out of assembly hole 141 forms an annular gap with assembly hole 141. During the molding of the tee tube 7, this annular gap allows molding material to fill the gap between rod 142 and assembly hole 141, forming an annular protrusion on sealing surface 71. The portion of rod 142 extending from assembly hole 141 not only cooperates with assembly hole 141 to shape the annular protrusion, but the outwardly extending portion of rod 142 passes through sealing surface 71, thus forming one of the through holes 73 of tee tube 7. Furthermore, the design of rod 142 is very flexible and can be configured in different forms according to actual needs, such as a core-pulling rod or a material conveying tube. When rod 142 is configured as a core-pulling rod, it can be pulled out after injection molding, making it easier to remove the molded tee tube 7 from the mold, simplifying the demolding process. When rod 142 is configured as a material conveying tube, it facilitates material flow during the molding of tee tube 7.

[0054] Reference Figure 3 and Figure 4As shown, the rod 142 further includes a first rod 1421 and a second rod 1422. One end of the second rod 1422 passes through and fits into the assembly hole 141. The first rod 1421 passes through the second rod 1422 and exits the assembly hole 141. By fitting one end of the second rod 1422 into the assembly hole 141, the stable positioning of the second rod 1422 and the first rod 1421 within the insert body 1 is ensured, thereby improving the stability of the entire insert structure. The design of the first rod 1421 passing through the second rod 1422 and exiting the assembly hole 141 allows the plastic material to tightly wrap around the first rod 1421 during injection molding, forming a good sealing effect. Based on this structure, the first rod 1421 can be a core-pulling rod or a material delivery tube, etc.

[0055] In some other embodiments, to facilitate the production of the insert body 1, the hole structure 14 is an annular groove. The design of the annular groove can form a through hole 73 with a flange when the tee tube 7 is formed.

[0056] See Figure 3 As shown, in some embodiments, the strip groove 13 is arranged in an annular shape to surround the hole structure 14, and the annular strip groove 13 and the hole structure 14 are concentrically arranged.

[0057] Specifically, the strip groove 13 forms a corresponding strip protrusion 72 on the sealing surface 71 during the molding of the tee tube 7. The perforation structure 14 forms a through hole 73 during the molding of the tee tube 7. The annular strip groove 13 and the perforation structure 14 are concentrically arranged, and the corresponding strip protrusion 72 and through hole 73 on the sealing surface 71 of the tee tube 7 are concentric, thereby improving the sealing effect of the sealing structure set at the strip protrusion 72. In addition, the concentric arrangement of the strip groove 13 and the perforation structure 14 also helps to ensure that the molding material is evenly filled around the perforation structure 14 during the injection molding process, thereby enhancing the stability of the overall structure and reducing deformation caused by uneven stress.

[0058] See Figure 3 As shown, in some embodiments, in order to facilitate the assembly of the metal sleeve 2, the insert body 1 includes a first main body segment 15 and a second main body segment 16. The second main body segment 16 protrudes from the first main body segment 15, and the portion of the second main body segment 16 protruding from the first main body segment 15 forms a first stepped surface 161. The side of the metal sleeve 2 away from the joint end 11 abuts against the first stepped surface 161.

[0059] Specifically, the second main body segment 16 protrudes from the first step surface 161 formed by the first main body segment 15 and abuts against the metal sleeve 2, which can ensure the accurate position of the metal sleeve 2 on the insert body 1, enhance the stability of the overall structure, and the existence of the first step surface 161 provides a clear positioning reference for the metal sleeve 2, simplifying the assembly process and improving assembly efficiency.

[0060] See Figure 3 As shown, in some embodiments, in order to facilitate demolding after the three-way pipe 7 is processed, the joint end 11 of the insert body 1 is provided with a joint platform 17, the strip groove 13 and the hole structure 14 are both provided on the joint platform 17, the insert body 1 protrudes circumferentially from the joint platform 17, and the part of the insert body 1 protruding from the joint platform 17 forms a second step surface 171, and the joint platform 17 is located inside the metal sleeve 2.

[0061] Specifically, the mating platform 17 is located at the metal sleeve 2, that is, the insert body 1 and the metal sleeve 2 form a cavity at the second step surface 171, thereby leaving a certain airflow space between the insert body 1 and the metal sleeve 2, which facilitates demolding after the three-way pipe 7 is processed.

[0062] See Figure 3 and Figure 9 As shown, in some embodiments, to facilitate the assembly of the insert body 1, the assembly end 12 of the insert body 1 is provided with a boss 18. Specifically, the boss 18 makes it easier for the insert body 1 to be installed and positioned with the template. The boss 18 can serve as a positioning reference, ensuring the accurate position of the insert in the template, simplifying the installation process and improving assembly efficiency. Furthermore, the boss 18 can increase the contact area between the insert body 1 and the template, thereby improving the stability of the insert in the template and reducing possible displacement during injection molding.

[0063] See Figure 3 and Figure 9 As shown, based on the structure of the insert with the boss 18, in order to maintain the stability of the insert body 1, a limiting structure 181 is provided on one side of the boss 18.

[0064] Specifically, the limiting structure 181 can be a snap-fit ​​block, snap-fit ​​surface, or other means to restrict the rotation of the insert body 1. In this embodiment, the limiting structure 181 is a milled plane. By setting a groove on the template on which the insert body 1 is assembled, which fits the milled plane, the rotation of the insert body 1 during the forming process of the tee pipe 7 is restricted, thereby ensuring the quality of the tee pipe 7.

[0065] See Figures 6-9As shown, this utility model also provides a processing mold for a tee pipe 7, including an upper template 3, a lower template 4, and the aforementioned insert. The insert passes through the upper template 3 or the lower template 4. Optionally, the processing mold may also include a cylinder for driving the movement of the upper template 3 or the lower template 4, a pipeline 6 for conveying molding material, and other side core-pulling modules 5. During processing, the upper template 3 and the lower template 4 are fitted together. The side core-pulling modules 5 are located on the side of the joint between the upper template 3 and the lower template 4 to form other through holes 73 of the tee pipe 7. The pipeline 6 for conveying molding material is used to convey the molding material between the upper template 3 and the lower template 4 for forming the tee pipe 7. The insert is located at the upper template 3 or the lower template 4 and passes through the upper template 3 or the lower template 4 for forming the sealing surface 71 of the tee pipe 7. Since the metal sleeve 2 included in the insert supports the sealing surface 71, the flatness of the sealing surface 71 is significantly improved, greatly reducing the problems of the tee pipe 7 caused by shrinkage deformation.

[0066] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. An insert, characterized in that, include: The insert body (1) has a connecting end (11) and an assembly end (12) arranged opposite to each other. The connecting end (11) of the insert body (1) is provided with a strip groove (13) and a hole structure (14). The strip groove (13) is arranged around the hole structure (14). A metal sleeve (2) is fitted onto the joint end (11) of the insert body (1). The metal sleeve (2) has a clearance hole (21) in the middle to avoid the strip groove (13) and the hole structure (14).

2. An insert according to claim 1, characterized in that, The hole structure (14) includes an assembly hole (141) and a rod (142). The assembly hole (141) is disposed through the insert body (1), and the rod (142) is disposed through the assembly hole (141). A ring gap is formed between the part of the rod (142) that protrudes from the assembly hole (141) and the assembly hole (141).

3. An insert according to claim 2, characterized in that, The rod (142) includes a first rod (1421) and a second rod (1422). One end of the second rod (1422) passes through the assembly hole (141) and fits against the assembly hole (141). The first rod (1421) passes through the second rod (1422) and extends out of the assembly hole (141).

4. An insert according to claim 1, characterized in that, The hole-forming structure (14) is an annular groove.

5. An insert according to any one of claims 1-4, characterized in that, The strip groove (13) surrounds the hole-forming structure (14) in an annular shape, and the annular strip groove (13) and the hole-forming structure (14) are concentrically arranged.

6. An insert according to any one of claims 1-4, characterized in that, The insert body (1) includes a first main body segment (15) and a second main body segment (16). The strip groove (13) and the hole structure (14) are both provided on the first main body segment (15). The second main body segment (16) protrudes from the first main body segment (15). The part of the second main body segment (16) protruding from the first main body segment (15) forms a first stepped surface (161). The metal sleeve (2) abuts against the first stepped surface (161) on the side away from the connecting end (11).

7. An insert according to any one of claims 1-4, characterized in that, The insert body (1) has a connecting end (11) with a connecting platform (17). The strip groove (13) and the hole structure (14) are both located on the connecting platform (17). The insert body (1) protrudes circumferentially from the connecting platform (17). The portion of the insert body (1) protruding from the connecting platform (17) forms a second step surface (171). The connecting platform (17) is located inside the metal sleeve (2).

8. An insert according to any one of claims 1-4, characterized in that, The mounting end (12) of the insert body (1) is provided with a boss (18).

9. An insert according to claim 8, characterized in that, One side of the boss (18) is provided with a limiting structure (181).

10. A tee pipe processing mold, characterized in that, It includes an upper template (3), a lower template (4), and an insert as described in any one of claims 1-9, wherein the insert is disposed through the upper template (3) or the lower template (4).

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