Injection molding machining mold for automobile spoiler
By designing an automated mold-lifting assembly and employing a mechanical transmission structure, safe and uniform mold lifting is achieved, solving the problems of burns and material damage in traditional molds and improving operational safety and efficiency.
Patent Information
- Application Number
- CN202423068727.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Traditional automotive rear wing injection molds can easily burn workers when the material is not fully cooled, and uneven manual demolding force can damage the material, making operation inconvenient.
A mold-lifting assembly was designed, comprising a cover, a motor, a worm gear, a worm wheel, a connecting rod, a helical gear, and a screw. The assembly achieves an automated, safe, and uniform mold-lifting process through mechanical transmission. A servo motor drives the worm gear to rotate, which in turn drives the worm wheel and the connecting rod to mesh. The screw smoothly raises and lowers the mold plate along the lifting hole.
It achieves a safe and uniform demolding process, avoiding the risk of burns and material damage, and improving the quality and efficiency of demolding operations.
Smart Images

Figure CN223545671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive rear wing processing technology, specifically to an injection molding mold for automotive rear wings. Background Technology
[0002] A car spoiler is a device installed on the upper part of the rear of a car. During the production and processing, it requires the use of injection molds. However, traditional car spoiler injection molds require manual demolding. If the material is not completely cooled, workers may be burned. Moreover, if the force applied during manual demolding is uneven, the material may be damaged, making the operation quite inconvenient. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides an injection molding mold for automobile rear wings.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a car rear spoiler injection molding mold, comprising a worktable, support legs, a lower mold assembly, and an upper mold assembly. The support legs are arranged at the four corners below the worktable. The lower mold assembly includes a lower mold body and a mold-lifting assembly. The mold-lifting assembly includes a cover, a motor, a worm gear, a worm wheel, a connecting rod, a first helical gear, a second helical gear, a screw, a connecting pipe, and a mold-lifting template. The cover is fixed to the worktable, and the cover is also provided with a lower mold body with an upper-opening mold groove. The mold-lifting template is adapted to the mold groove. Two sets of connecting pipes are provided below the template. The lower mold body is also provided with lifting holes adapted to the connecting pipes. The worm gear is provided in the center of the cover body. The worm wheel meshes with the worm gear. Connecting rods are symmetrically arranged on the left and right sides of the center of the worm wheel. A first helical tooth is provided at the end of the connecting rod away from the worm wheel. A second helical tooth meshes with the first helical tooth is provided in the cover body. A screw connected to the connecting pipe is provided above the second helical tooth. An upper mold assembly that closes with the lower mold body is also provided on the worktable.
[0007] To facilitate stable mold closing with the lower mold body, this utility model is improved in that the upper mold assembly includes an inverted L-shaped bracket, a lifting device, a mounting plate, and an upper mold body. The bottom wall of the bracket is fixed to the worktable, the lifting device passes through the top wall of the bracket and is connected to the mounting plate, and the upper mold body is disposed below the mounting plate.
[0008] Preferably, the motor is a servo motor.
[0009] Preferably, the lifting device is a cylinder.
[0010] To ensure the stability of the lifting and lowering of the mounting plate, the present invention is improved by providing a guide rod that penetrates the top wall of the bracket on the mounting plate.
[0011] (III) Beneficial Effects
[0012] Compared with the prior art, this utility model provides an injection molding die for automobile rear spoilers, which has the following beneficial effects:
[0013] The injection molding mold for this car rear spoiler features an automated, safe, and uniform mold-lifting component (comprising a cover, motor, worm gear, worm wheel, connecting rod, first helical tooth, second helical tooth, screw, connecting pipe, and mold-lifting platen) within the lower mold assembly. When mold lifting is required after injection molding, the motor (a servo motor with high control precision and fast response) starts, driving the worm gear to rotate. The worm gear meshes with the worm wheel, thus driving the worm wheel to rotate. The connecting rods, symmetrically arranged on both sides of the worm wheel's center, rotate with the worm wheel. The first and second helical teeth at one end of each connecting rod mesh, driving the second helical tooth to rotate, and the screw connected above the second helical tooth also rotates accordingly.
[0014] The screw connects to the connecting pipe below the lower mold platen. Based on the principle of threaded transmission, the rotation of the screw causes the connecting pipe to drive the mold platen to move smoothly up and down along the lifting holes on the lower mold body, thus realizing the mold lifting operation. This method of mold lifting through a mechanical transmission structure avoids the risk of burns to workers due to incomplete material cooling during manual mold lifting. Furthermore, because the entire mold lifting process relies on the coordinated operation of various transmission components, the lifting force can be evenly applied to the material, effectively preventing material damage caused by uneven force application by manual workers. This ensures the safety of the mold lifting process and the integrity of the material, improving the quality and efficiency of the mold lifting operation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a partial top view of the structure of this utility model;
[0017] Figure 3 This is a partial bottom view of the structure of this utility model;
[0018] Figure 4 This is a partial explosion diagram of the structure of this utility model.
[0019] In the diagram: 1. Workbench; 2. Support leg; 3. Lower mold body; 4. Cover; 5. Motor; 6. Worm gear; 7. Worm wheel; 8. Connecting rod; 9. First helical gear; 10. Second helical gear; 11. Screw; 12. Connecting pipe; 13. Lifting plate; 14. Bracket; 15. Lifter; 16. Mounting plate; 17. Upper mold body; 18. Guide rod. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4 A car rear spoiler injection molding mold includes a worktable 1, support legs 2, a lower mold assembly, and an upper mold assembly. The support legs 2 are located at the four corners below the worktable 1. The lower mold assembly includes a lower mold body 3 and a mold-lifting assembly. The mold-lifting assembly includes a cover 4, a motor 5, a worm gear 6, a worm wheel 7, a connecting rod 8, a first helical gear 9, a second helical gear 10, a screw 11, a connecting pipe 12, and a mold-lifting template 13. The cover 4 is fixed to the worktable 1. The cover 4 also has a lower mold body 3 with an upper opening mold groove. The mold-lifting template 13 is adapted to the mold groove. A mold-lifting template 13 is also provided below it. The lower mold body 3 is provided with two sets of connecting pipes 12. The lower mold body 3 is also provided with lifting holes that are adapted to the connecting pipes 12. The worm gear 6 is provided in the center of the cover body 4. The worm wheel 7 meshes with the worm gear 6. Connecting rods 8 are symmetrically arranged on the left and right sides of the center of the worm wheel 7. The end of the connecting rod 8 away from the worm wheel 7 is also provided with a first helical tooth 9. The cover body 4 is also provided with a second helical tooth 10 that meshes with the first helical tooth 9. A screw 11 connected to the connecting pipe 12 is provided above the second helical tooth 10. The worktable 1 is also provided with an upper mold assembly that closes with the lower mold body 3.
[0022] The worktable 1 serves as the foundational support platform for the entire injection mold, providing a stable surface for the lower mold assembly, upper mold assembly, and subsequent injection molding operations. Support legs 2 at its four corners provide support. The cover 4 is fixed to the worktable 1, protecting the internal transmission components from external dust and debris that could interfere with their normal operation. It also provides a relatively fixed mounting space for the various transmission components of the mold-lifting assembly, ensuring accurate positional relationships and stable transmission. The motor 5 (a servo motor 5, capable of precise control of speed and rotation angle) drives the worm gear 6 to rotate after starting. Since the worm gear 6 meshes with the worm wheel 7, according to the gear transmission principle, the rotation of the worm gear 6 drives the worm wheel 7 to rotate synchronously. The connecting rods 8, symmetrically arranged on both sides of the center of the worm gear 7, rotate together with the worm gear 7. The first helical tooth 9 at the end of the connecting rod 8 away from the worm gear 7 meshes with the second helical tooth 10 inside the cover 4. When the connecting rod 8 rotates, it drives the second helical tooth 10 to rotate. The screw 11 is connected above the second helical tooth 10. The screw 11 is connected to the connecting pipe 12 below the lifting template 13. The lifting template 13 is adapted to the mold groove with an opening on the lower mold body 3. The lower mold body 3 is also provided with a lifting hole for the connecting pipe 12 to rise and fall. When the second helical tooth 10 drives the screw 11 to rotate, based on the principle of thread transmission, the rotational motion of the screw 11 is converted into the linear motion of the connecting pipe 12 along the axial direction of the screw 11, which facilitates the lifting of the mold. The upper mold assembly and the lower mold body 3 are then closed for material forming.
[0023] In actual use, the upper mold assembly includes an inverted L-shaped bracket 14, a lifter 15, a mounting plate 16, and an upper mold body 17. The bottom wall of the bracket 14 is fixed on the workbench 1. The lifter 15 passes through the top wall of the bracket 14 and is connected to the mounting plate 16. The upper mold body 17 is located below the mounting plate 16. The bracket 14 provides stable support for the lifter 15. The lifter 15 drives the mounting plate 16 to descend, and the upper mold body 17 closes with the lower mold body 3. The lifter 15 uses a correspondingly fast cylinder. The mounting plate 16 is also provided with a guide rod 18 that passes through the top wall of the bracket 14 to ensure the stability of the lifting of the mounting plate 16. Moreover, the lifting template 13 with the connecting pipe 12 is convenient to be disassembled from the lower mold body 3. When a new lower mold body 3 and upper mold body 17 are assembled, the connecting pipe 12 with the new lifting template 13 is connected to the screw 11.
[0024] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0025] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A mold for injection molding a car rear spoiler, comprising a worktable (1), a support leg (2), a lower mold assembly, and an upper mold assembly, characterized in that: The workbench (1) is provided with four support legs (2) at its four corners. The lower mold assembly includes a lower mold body (3) and a mold lifting assembly. The mold lifting assembly includes a cover (4), a motor (5), a worm gear (6), a worm wheel (7), a connecting rod (8), a first helical tooth (9), a second helical tooth (10), a screw (11), a connecting pipe (12), and a mold lifting template (13). The cover (4) is fixed on the workbench (1). The cover (4) is also provided with a lower mold body (3) with an open mold groove. The mold lifting template (13) is adapted to the mold groove. Two sets of connecting pipes (12) are also provided below the mold lifting template (13). The lower mold body ( 3) The upper part is also provided with a lifting hole that is compatible with the connecting pipe (12). The worm (6) is provided in the center of the cover (4). The worm wheel (7) meshes with the worm (6). The connecting rod (8) is symmetrically provided on the left and right sides of the center of the worm wheel (7). The end of the connecting rod (8) away from the worm wheel (7) is also provided with a first helical tooth (9). The cover (4) is also provided with a second helical tooth (10) that meshes with the first helical tooth (9). The screw (11) connected to the connecting pipe (12) is provided above the second helical tooth (10). The worktable (1) is also provided with an upper mold assembly that closes with the lower mold body (3).
2. The injection molding die for an automobile rear spoiler according to claim 1, characterized in that: The upper mold assembly includes an inverted L-shaped bracket (14), a lifter (15), a mounting plate (16), and an upper mold body (17). The bottom wall of the bracket (14) is fixed on the workbench (1). The lifter (15) passes through the top wall of the bracket (14) and is connected to the mounting plate (16). The upper mold body (17) is located below the mounting plate (16).
3. The injection molding mold for an automobile rear spoiler according to claim 2, characterized in that: The motor (5) is a servo motor.
4. The injection molding mold for an automobile rear spoiler according to claim 3, characterized in that: The lifting device (15) uses a cylinder.
5. The injection molding mold for an automobile rear spoiler according to claim 4, characterized in that: The mounting plate (16) is also provided with a guide rod (18) that penetrates the top wall of the bracket (14).