Automobile air duct special-shaped section forming die with replaceable cavity

Abstract

This utility model discloses a quick-change mold head for forming irregular sections of automotive air ducts, relating to the field of automotive air duct processing technology. It includes a mold head body and a cavity body. A connecting ring is fixedly connected to the outside of the mold head body. An irregular cavity is formed on the outside of the cavity body. A mounting plate is fixedly connected to the outside of the cavity body. Multiple sets of connecting plates arranged in a ring are fixedly connected to the outside of the connecting ring. T-slots are formed on the outside of the connecting plates. A T-shaped locking block is slidably connected to the inner side of the T-slot. A screw is threaded onto the outside of the connecting plates. A positioning mechanism is installed between the T-shaped locking block and the mounting plate. The mold head drives the T-shaped locking block to move forward and backward by rotating the screw, which in turn drives the positioning rod to be precisely inserted and removed. With the help of a fastening nut, it quickly locks the cavity, achieving precise positioning, secure clamping, and effective sealing. This makes the replacement operation simple and quick, significantly improving the efficiency and flexibility of producing air ducts of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of automotive duct processing technology, and in particular to a molding die head for automotive duct irregular sections with a quickly replaceable cavity. Background Technology

[0002] In the manufacturing of automotive air conditioning and ventilation systems, automotive ducts often have various irregularly shaped sections due to their complex spatial orientation. Traditionally, the production of these irregularly shaped sections mostly uses dedicated fixed forming molds, requiring a complete set of molds for each type of duct. With the accelerated pace of vehicle model updates and the increasing demand for customization, the production line needs to frequently change molds to adapt to the forming requirements of different ducts. However, the traditional process of changing integral molds is cumbersome and time-consuming, severely restricting production efficiency, flexibility, and response speed.

[0003] However, existing mold head structures are highly integrated, requiring the entire mold head assembly to be disassembled for replacement, resulting in high labor intensity. Furthermore, alignment and sealing adjustments after reinstallation are difficult, which can easily affect the stability of subsequent product quality. Therefore, how to achieve rapid and accurate replacement and reliable sealing of the cavity portion of the mold head, avoiding the disassembly and assembly of the entire mold head, has become a practical problem that urgently needs to be solved in this field. Thus, a mold head for forming irregular sections of automotive air ducts with rapidly replaceable cavities is proposed here. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a quick-change mold head for forming irregular sections of automotive air ducts, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-change mold head for forming irregular sections of automotive air ducts, comprising a mold head body and a cavity body. A connecting ring is fixedly connected to the outside of the mold head body. An irregular cavity is formed on the outside of the cavity body. An mounting plate is fixedly connected to the outside of the cavity body, and the cavity body is inserted into the inner side of the mold head body and the connecting ring. Multiple sets of connecting plates arranged in a ring are fixedly connected to the outside of the connecting ring. A T-slot is formed on the outside of the connecting plate. A T-shaped locking block is slidably connected to the inside of the T-slot. A screw is threaded to the outside of the connecting plate, and the end of the screw is rotatably connected to the upper side of the T-shaped locking block. A positioning mechanism is installed between the T-shaped locking block and the mounting plate.

[0006] As a further technical solution of this utility model, a sealing ring is fixedly connected to the outside of the connecting ring, and one side of the isolation sleeve abuts against the sealing ring.

[0007] As a further technical solution of this utility model, an isolation sleeve is fixedly connected to the outside of the mounting plate, and the cavity body is located inside the isolation sleeve.

[0008] As a further technical solution of this utility model, a slot is provided on the upper side of the T-shaped card block, and a limiting block is fixedly connected to the bottom of the screw, and the limiting block is rotatably connected to the inner side of the slot.

[0009] As a further technical solution of this utility model, a screw block is fixedly connected to the top of the screw.

[0010] As a further technical solution of this utility model, the screw is externally threaded with a fastening nut, and the fastening nut abuts against the upper side of the connecting plate.

[0011] As a further technical solution of this utility model, the positioning mechanism includes a positioning hole and a positioning rod. The positioning hole is opened on the outside of the mounting plate, and the positioning rod is fixedly connected to one side of the T-shaped card block. The positioning rod matches the positioning hole, and the positioning rod abuts against the inside of the positioning hole.

[0012] This invention provides a quick-change mold head for forming irregular sections of automotive air ducts, which has the following advantages compared with the prior art: 1. This design is a quick-change mold head for forming irregular sections of automotive air ducts. By rotating the screw to drive the T-shaped clamp and positioning rod to move forward and backward, the mold head can quickly disassemble and precisely position the cavity, which significantly simplifies the operation steps, greatly shortens the changeover time, and effectively improves the flexibility of the production line and the response speed to different products.

[0013] 2. This design provides a quick-change mold head for forming irregular sections of automotive air ducts. By utilizing the axial locking force provided by the T-shaped clamp and the radial positioning of the positioning rod, combined with the tight pressing of the sealing surface, the connection rigidity and sealing reliability after cavity replacement are ensured, thus guaranteeing the stability of the forming process and the consistency of the final product quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is a schematic diagram of the second overall structure of the present invention; Figure 4 for Figure 3 Enlarged view of the structure at point B; Figure 5 for Figure 3 Enlarged view of the structure at point C; Figure 6 This is a partial structural front sectional view of the present invention; Figure 7 for Figure 6 Enlarged view of the structure at point D.

[0015] In the diagram: 1. Mold head body; 2. Connecting ring; 3. Cavity body; 4. Irregular cavity; 5. Mounting plate; 6. Sealing ring; 7. Isolation sleeve; 8. Connecting plate; 9. T-slot; 10. T-block; 11. Screw; 12. Slot; 13. Limiting block; 14. Tightening block; 15. Fastening nut; 16. Positioning hole; 17. Positioning rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-7 This utility model provides a quick-change mold head for forming irregular sections of automotive air ducts, including a mold head body 1 and a cavity body 3. The mold head body 1 serves as the basic structure of the entire mold head, and a connecting ring 2 is fixedly connected to its exterior. The connecting ring 2 is used to connect and support other components. The cavity body 3 is the core component that forms the product outline, and an irregular cavity 4 is opened on its exterior. The irregular cavity 4 is used to form a specific irregular cross section of the automotive air duct. A mounting plate 5 is fixedly connected to the exterior of the cavity body 3. The mounting plate 5 provides the cavity body 3 with an installation reference and support plane, and the cavity body 3 is inserted into the mold head body 1 and the inner side of the connecting ring 2. This insertion method ensures accurate positioning of the cavity. A sealing ring 6 is fixedly connected to the exterior of the connecting ring 2. The sealing ring 6 is used to ensure the sealing of the mold head system, and one side of the isolation sleeve 7 abuts against the sealing ring 6. The isolation sleeve 7 plays a role in isolation and protection. The isolation sleeve 7 is fixedly connected to the exterior of the mounting plate 5, and the cavity body 3 is located inside the isolation sleeve 7. The isolation sleeve 7 effectively prevents material leakage and external contamination.

[0018] like Figure 3 as well as Figure 6As shown, the connecting ring 2 is externally fixedly connected to multiple sets of connecting plates 8 arranged in a ring. The connecting plates 8 provide the mounting base for the locking mechanism. A T-slot 9 is provided on the outside of the connecting plate 8, providing a guide rail for the sliding component. A T-shaped locking block 10 is slidably connected to the inside of the T-slot 9, achieving stable sliding within the slot through its special shape. A screw 11 is threadedly connected to the outside of the connecting plate 8, providing axial driving force through threaded transmission. The end of the screw 11 is rotatably connected to the upper side of the T-shaped locking block 10. This connection method converts rotational motion into linear motion. The upper side of the T-shaped locking block 10 has... There is a slot 12, which provides a space for the rotating parts. The bottom of the screw 11 is fixedly connected to a limit block 13, which prevents the screw from disengaging from the slot. The limit block 13 is also rotatably connected to the inside of the slot 12. This connection allows the screw to rotate freely while limiting its axial displacement. The top of the screw 11 is fixedly connected to a screwing block 14, which provides a force point for the operator to rotate the screw. The screw 11 is externally threaded with a fastening nut 15, which is used to lock the position of the screw. The fastening nut 15 abuts against the upper side of the connecting plate 8, and the fastening action of the nut maintains the stability of the entire mechanism.

[0019] like Figure 3 as well as Figure 5 As shown, a positioning mechanism is installed between the T-shaped card block 10 and the mounting plate 5. The positioning mechanism ensures the repeatability of positioning accuracy when changing the cavity. The positioning mechanism includes a positioning hole 16 and a positioning rod 17. The positioning hole 16 is opened on the outside of the mounting plate 5 and provides an accurate insertion position for the positioning element. The positioning rod 17 is fixedly connected to one side of the T-shaped card block 10. The positioning rod 17 achieves precise positioning by inserting into the positioning hole. The positioning rod 17 and the positioning hole 16 are matched, and the positioning rod 17 abuts against the inside of the positioning hole 16. This matching relationship ensures the accuracy and stability of the cavity installation.

[0020] The working principle of this utility model is as follows: during operation, the molten material flows in from the inlet of the die head body 1, passes through the flow channel jointly formed by the die head body 1 and the cavity body 3, and is finally extruded from the irregular cavity 4 at the front end of the cavity body 3 to form a tubular blank with a specific cross section.

[0021] When it is necessary to change the cavity to produce air ducts of different specifications, the operator first loosens the fastening nut 15, and then rotates the screw block 14 in the opposite direction to drive the screw 11 to move upward. Since the limiting block 13 at the bottom of the screw 11 is stuck in the slot 12 of the T-shaped locking block 10, the rotational motion of the screw 11 is converted into the linear lifting motion of the T-shaped locking block 10, so that the positioning rod 17 is removed from the positioning hole 16 of the mounting plate 5, thereby completely releasing the clamping force on the mounting plate 5. At this time, the operator can pull out the entire cavity assembly from the inside of the mold head body 1 and the connecting ring 2.

[0022] After replacing the cavity assembly, insert it into the mold head body 1, ensuring the mounting plate 5 is in place. Then, rotate the screw block 14 forward to push the T-shaped locking block 10 forward, so that the positioning rod 17 at its end is precisely inserted into the positioning hole 16 on the mounting plate 5, completing the radial positioning. Finally, tighten the fastening nut 15 to lock the screw 11 to the connecting plate 8. The T-shaped locking block 10 provides a strong axial locking force for the mounting plate 5, pressing it against the connecting ring 2. At the same time, the isolation sleeve 7 on the mounting plate 5 and the sealing ring 6 on the connecting ring 2 are isolated to form an effective seal and prevent material leakage. The whole process does not require a lot of tools and can be completed with just a simple rotation operation, which greatly improves production efficiency and flexibility.

[0023] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A quick-change cavity forming die head for forming an automobile air duct profiled section, characterized in that, The device includes a mold head body (1) and a cavity body (3). A connecting ring (2) is fixedly connected to the outside of the mold head body (1). A shaped cavity (4) is opened on the outside of the cavity body (3). A mounting plate (5) is fixedly connected to the outside of the cavity body (3). The cavity body (3) is inserted into the inside of the mold head body (1) and the connecting ring (2). Multiple sets of connecting plates (8) arranged in a ring are fixedly connected to the outside of the connecting ring (2). A T-shaped groove (9) is opened on the outside of the connecting plate (8). A T-shaped locking block (10) is slidably connected to the inside of the T-shaped groove (9). A screw (11) is threadedly connected to the outside of the connecting plate (8). The end of the screw (11) is rotatably connected to the upper side of the T-shaped locking block (10). A positioning mechanism is installed between the T-shaped locking block (10) and the mounting plate (5).

2. The automobile air duct profile section forming die head with quickly replaceable cavity according to claim 1, characterized in that, The connecting ring (2) is fixedly connected to a sealing ring (6), and one side of the isolation sleeve (7) abuts against the sealing ring (6).

3. The automotive air duct profile segment forming die head of claim 1, wherein, An isolation sleeve (7) is fixedly connected to the outside of the mounting plate (5), and the cavity body (3) is located inside the isolation sleeve (7).

4. The automotive air duct profile segment forming die head of fast replaceable cavity according to claim 1, characterized in that, The upper side of the T-shaped card block (10) is provided with a card slot (12), and the bottom of the screw (11) is fixedly connected to a limiting block (13), and the limiting block (13) is rotatably connected to the inner side of the card slot (12).

5. The automotive air duct profile segment forming die head of fast replaceable cavity according to claim 1, characterized in that, The top of the screw (11) is fixedly connected to a screw block (14).

6. The automotive air duct profile segment forming die head of fast replaceable cavity according to claim 1, characterized in that, The screw (11) is externally threaded with a fastening nut (15), and the fastening nut (15) abuts against the upper side of the connecting plate (8).

7. The automotive air duct profile segment forming die head of fast replaceable cavity according to claim 1, characterized in that, The positioning mechanism includes a positioning hole (16) and a positioning rod (17). The positioning hole (16) is located on the outside of the mounting plate (5). The positioning rod (17) is fixedly connected to one side of the T-shaped card block (10). The positioning rod (17) matches the positioning hole (16) and abuts against the inside of the positioning hole (16).

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