Injection mold for processing automobile antenna

Abstract

The utility model relates to the technical field of automobile antenna processing equipment, and discloses an injection mold for processing an automobile antenna, which comprises a mounting bottom plate and an upper mold, the upper mold is arranged above the mounting bottom plate, the top of the mounting bottom plate is fixedly connected with a lower mold, the left side and the right side of the lower mold are fixedly connected with fixing columns, and the fixing columns are fixedly connected with the mounting bottom plate. A mounting groove is formed in the fixing column, a sliding plate is slidably connected to the interior of the mounting groove, an inserting rod is fixedly connected to one side of the sliding plate, a rigid traction rope is fixedly connected to the other side of the sliding plate, a spring is arranged outside the rigid traction rope in a sleeving mode, and the left side and the right side of the top of the lower mold are each provided with a fixing groove; and the front side of the lower mold is rotationally connected with a rotating rod. According to the injection mold disclosed by the utility model, extra fixing force is provided to ensure that the upper mold and the lower mold do not displace in the injection molding process, so that the molding defect caused by mold dislocation can be effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of automobile antenna processing equipment, in particular to an injection mold for processing automobile antennas. Background Art

[0002] In the automotive industry, antennas are an essential component of vehicle communications and entertainment systems, and their performance and appearance directly impact the functionality and aesthetics of the entire vehicle. Therefore, the processing accuracy and quality of antennas are crucial. Traditional injection molds often face problems with mold misalignment and molding defects during antenna production, primarily due to the lack of sufficient fixing force and guiding accuracy during the injection molding process. In existing technologies, most injection molds achieve mold-to-mold closing through a basic positioning structure. However, this design fails to effectively address the lateral forces caused by injection pressure and deformation caused by the mold's own weight, resulting in the mold easily shifting during operation, which in turn affects the molding quality of the product.

[0003] While existing injection mold designs offer some improvements, such as adding positioning pins or using elastic elements, they don't offer an effective solution to the complex mechanical conditions the mold endures during the injection molding process. This deficiency not only increases scrap rates during production but also increases mold wear and maintenance costs.

[0004] Therefore, those skilled in the art have proposed an injection mold for processing automobile antennas to solve the above problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the present invention provides an injection mold for processing a car antenna, aiming to improve the problems raised by the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An injection mold for processing a car antenna includes a mounting base and an upper mold. The upper mold is arranged above the mounting base. The top of the mounting base is fixedly connected to the lower mold. The left and right sides of the lower mold are fixedly connected to fixing columns. A mounting groove is provided inside the fixing column. A slide is slidably connected inside the mounting groove. One side of the slide is fixedly connected to a plug rod, and the other side of the slide is fixedly connected to a rigid traction rope. The outer sleeve of the rigid traction rope is provided with a spring. The left and right sides of the top of the lower mold are provided. The front side of the lower mold is rotatably connected to a rotating rod. The left and right sides of the bottom end of the upper mold are fixedly connected to positioning columns. A slot is provided inside the positioning column. Guide components are installed on the left and right sides of the upper mold. The guide components are used to guide the upper mold.

[0008] Furthermore, the guide assembly includes two fixed plates, which are respectively fixedly connected to the left and right sides of the upper mold. A through hole is opened inside the fixed plate, and a guide rod is slidably connected inside the through hole.

[0009] Furthermore, one end of the spring is fixedly connected to the outer side of the slide plate, and the other end of the spring is fixedly connected to the outer side of the rotating rod.

[0010] Furthermore, a support frame is fixedly connected to the rear side of the top of the mounting base plate, a hydraulic cylinder is installed on the top of the support frame, and an output end of the hydraulic cylinder is fixedly connected to the top of the upper mold.

[0011] Furthermore, the top of the guide rod is fixedly connected to a limit block, and the bottom end of the guide rod is fixedly connected to the top of the mounting base.

[0012] Furthermore, the upper mold is located directly above the lower mold.

[0013] Furthermore, the longitudinal section of the insertion rod is set to be circular, and one end of the insertion rod is plugged into and matched with the interior of the slot.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the present invention, a snap assembly is added to fix the upper and lower molds during the closing process, thereby providing additional fixing force for the injection mold, ensuring that the upper and lower molds will not be displaced during the injection molding process, which can effectively prevent molding defects caused by mold misalignment.

[0016] 2. In the present invention, by adding fixed plates, through holes, guide rods and other structures that cooperate with each other, the mold can be kept accurately aligned, and deformation and dislocation caused by uneven pressure or mold weight can be reduced. At the same time, the guide assembly can withstand the lateral force generated by the injection pressure to ensure the stability of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the injection mold for processing the automobile antenna proposed in the present utility model;

[0018] Figure 2 This is a schematic diagram of the upper mold structure of the injection mold for processing the automobile antenna proposed in the utility model;

[0019] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5This is a cross-sectional view of the fixing column of the injection mold for processing the automobile antenna proposed by the utility model.

[0022] Legend:

[0023] 1. Mounting base plate; 2. Support frame; 3. Upper mold; 4. Lower mold; 501. Fixed plate; 502. Through hole; 503. Guide rod; 504. Limit block; 6. Hydraulic cylinder; 701. Positioning column; 702. Slot; 703. Fixed column; 704. Slide plate; 705. Insert rod; 706. Spring; 707. Rigid traction rope; 708. Rotating rod; 709. Mounting slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1 - Figure 5 The present invention provides an embodiment of an injection mold for processing an automotive antenna, comprising a mounting base 1 and an upper mold 3. The upper mold 3 is disposed above the mounting base 1. The lower mold 4 is fixedly connected to the top of the mounting base 1. Fixed columns 703 are fixedly connected to the left and right sides of the lower mold 4. The fixed columns 703 have mounting slots 709 defined within them. A slide 704 is slidably connected to the interior of the mounting slots 709. An insertion rod 705 is fixedly connected to one side of the slide 704. A rigid traction rope 707 is fixedly connected to the other side of the slide 704. A spring 706 is sheathed around the rigid traction rope 707. A mounting rod 710 is defined on the left and right sides of the top of the lower mold 4. A rotating rod 708 is rotatably connected to the front side of the lower mold 4. Positioning columns 701 are fixedly connected to the left and right sides of the bottom of the upper mold 3. Slots 702 are defined within the positioning columns 701. Guide assemblies are installed on both sides of the upper mold 3 to guide the upper mold 3. The upper mold 3 is located directly above the lower mold 4.

[0026] Specifically, when the upper mold 3 moves downward, the inclined surface of the positioning post 701 contacts the outer surface of the insertion rod 705, forcing the insertion rod 705 to move outward. This action ensures that after the positioning post 701 is fully inserted into the positioning hole 710, the insertion rod 705 smoothly enters the interior of the slot 702 under the elastic force of the spring 706, thereby locking the relative position of the upper and lower molds and maintaining stability during the mold closing process.

[0027] After the molds are closed, by rotating the rotating rod 708 on the front side of the lower mold 4, the rigid traction rope 707 is wrapped around the outer surface of the rotating rod 708, generating traction. This traction forces the slide 704 to move outward, ultimately separating the insertion rod 705 from the inner wall of the slot 702. During this process, the output end of the hydraulic cylinder 6 contracts, driving the upper mold 3 to move up and down, thus smoothly completing the separation process of the upper mold 3 and the lower mold 4. Used in this way, this injection mold provides additional fixing force, ensuring that the upper and lower molds do not shift during the injection molding process, thus effectively preventing molding defects caused by mold misalignment.

[0028] The guide assembly includes two fixed plates 501, which are fixedly connected to the left and right sides of the upper mold 3. The fixed plates 501 have through-holes 502 formed therein, and guide rods 503 are slidably connected therein. The tops of the guide rods 503 are fixedly connected to limit blocks 504, and the bottoms of the guide rods 503 are fixedly connected to the top of the mounting base 1.

[0029] Specifically, the design of the guide assembly is intended to improve the precision and stability of the automobile antenna injection mold. The design of the through hole 502 allows the guide rod 503 to slide freely therein, thereby providing guidance for the precise movement of the upper mold 3.

[0030] The top of the guide rod 503 is fixedly connected to a limit block 504. This limit block 504 ensures that the guide rod 503 does not exceed the set travel range during its upward and downward movement, preventing damage to the mold due to overtravel. Simultaneously, the bottom end of the guide rod 503 is fixedly connected to the top of the mounting base 1, forming a stable support system. This design not only enhances the overall rigidity of the mold but also provides additional stability for the upper and lower molds to close together.

[0031] During operation, the upper mold 3 moves downward by activating the hydraulic cylinder 6. As the upper mold 3 moves downward, the fixed plate 501 slides downward along the outer wall of the guide rod 503. This process ensures precise alignment between the upper mold 3 and the lower mold 4. The guide rod 503 plays a key guiding role in this process, effectively directing the movement of the upper mold 3 and reducing deformation and misalignment caused by mold weight or uneven pressure generated during the injection molding process.

[0032] One end of the spring 706 is fixedly connected to the outer side of the slide plate 704, and the other end of the spring 706 is fixedly connected to the outer side of the rotating rod 708. The longitudinal section of the insertion rod 705 is set to be circular, and one end of the insertion rod 705 is plugged into the interior of the slot 702.

[0033] Specifically, when the rotating rod 708 rotates, the spring 706's fixed connection to its outer side allows the slide 704 to move outward while effectively resisting and absorbing external forces. This design ensures that the slide 704 can move flexibly during operation and return to its original position when needed. This elastic connection ensures that the slide 704 maintains high stability and responsiveness during the mold closing and opening processes.

[0034] The longitudinal section of the insert rod 705 is set to be circular. This design ensures the smoothness of the sliding contact of the insert rod 705 and reduces the need for friction. The circular cross-section allows the insert rod 705 to move smoothly when inserted into the slot 702, thereby avoiding the jamming phenomenon caused by incorrect angles or non-parallelism. One end of the insert rod 705 is plugged into the inside of the slot 702 to ensure the precise docking of the mold during the mold closing process. The shape of the inner wall of the slot 702 matches the circular cross-section of the insert rod 705, allowing the insert rod 705 to be easily inserted and firmly locked when the mold is closed, further enhancing the stability of the mold.

[0035] This plug-in fit not only improves mold positioning accuracy but also withstands the pressure generated during the injection process, ensuring stable alignment between upper mold 3 and lower mold 4. The interaction between spring 706 and plunger 705 significantly enhances the mold's ability to resist deformation and misalignment during the injection molding process, providing reliable technical support for high-quality molding of automotive antennas.

[0036] The top rear side of the mounting base plate 1 is fixedly connected with a support frame 2 , the top of the support frame 2 is installed with a hydraulic cylinder 6 , and the output end of the hydraulic cylinder 6 is fixedly connected to the top of the upper mold 3 .

[0037] Specifically, the support frame 2 plays a role in supporting the hydraulic cylinder 6. In addition, the upper mold 3 can be driven to move up and down by starting the hydraulic cylinder 6, thereby realizing the process of closing the film.

[0038] Working Principle: When using this device, the injection molding liquid used to form the car antenna is first injected into the molding cavity at the top of the lower mold 4. Then, the hydraulic cylinder 6 is activated to drive the upper mold 3 downward. As the upper mold 3 moves, the fixed plate 501 moves downward along the outer wall of the guide rod 503. This ensures that the upper mold 3 and the lower mold 4 are precisely aligned, reducing deformation and misalignment caused by uneven pressure or mold weight. At the same time, it can withstand the lateral force generated by the injection pressure, ensuring the stability of the upper mold 3 and the lower mold 4 during the mold closing process.

[0039] During the film closing process, since the bottom of the positioning post 701 is set as an inclined surface, when the bottom of the positioning post 701 is inserted into 710, the bottom of the positioning post 701 will contact the outer surface of the insertion rod 705, so that the insertion rod 705 moves outward. When the positioning post 701 is fully inserted into 710, the insertion rod 705 is inserted into the interior of the slot 702 under the action of the elastic force of the spring 706, ensuring the stability of the upper mold 3 and the lower mold 4 during the film closing process;

[0040] After the film is closed, the rigid traction rope 707 is wound along the outer surface of the rotating rod 708 by rotating the rotating rod 708. In this way, under the traction force of the rigid traction rope 707, the slide plate 704 is driven to move outward until one end of the insertion rod 705 is separated from the inner wall of the slot 702. At this time, the output end of the hydraulic cylinder 6 contracts, driving the upper mold 3 to move up and down, completing the mold separation process of the upper mold 3 and the lower mold 4.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An injection mold for processing a car antenna, characterized by: The invention comprises a mounting base (1) and an upper mold (3), wherein the upper mold (3) is arranged above the mounting base (1), the top of the mounting base (1) is fixedly connected to the lower mold (4), the left and right sides of the lower mold (4) are fixedly connected to fixed columns (703), the interior of the fixed column (703) is provided with a mounting groove (709), the interior of the mounting groove (709) is slidably connected to a slide plate (704), one side of the slide plate (704) is fixedly connected to an insertion rod (705), and the other side of the slide plate (704) is fixedly connected to a fixing rod (706). A rigid traction rope (707) is connected, and a spring (706) is provided on the outside of the rigid traction rope (707). The left and right sides of the top of the lower mold (4) are both provided with (710). The front side of the lower mold (4) is rotatably connected to a rotating rod (708). The left and right sides of the bottom end of the upper mold (3) are both fixedly connected with positioning columns (701). A slot (702) is provided inside the positioning column (701). Guide components are installed on the left and right sides of the upper mold (3), and the guide components are used to guide the upper mold (3).

2. The injection mold for processing a car antenna according to claim 1, characterized in that: The guide assembly comprises two fixed plates (501), which are respectively fixedly connected to the left and right sides of the upper mold (3); a through hole (502) is provided inside the fixed plate (501), and a guide rod (503) is slidably connected inside the through hole (502).

3. The injection mold for processing a car antenna according to claim 1, characterized in that: One end of the spring (706) is fixedly connected to the outer side of the slide plate (704), and the other end of the spring (706) is fixedly connected to the outer side of the rotating rod (708).

4. The injection mold for processing a car antenna according to claim 1, characterized in that: The top rear side of the mounting base plate (1) is fixedly connected to a support frame (2), the top of the support frame (2) is installed with a hydraulic cylinder (6), and the output end of the hydraulic cylinder (6) is fixedly connected to the top of the upper mold (3).

5. The injection mold for processing a car antenna according to claim 2, characterized in that: The top of the guide rod (503) is fixedly connected to the limiting block (504), and the bottom end of the guide rod (503) is fixedly connected to the top of the mounting base plate (1).

6. The injection mold for processing a car antenna according to claim 1, characterized in that: The upper mold (3) is located directly above the lower mold (4).

7. The injection mold for processing a car antenna according to claim 1, characterized in that: The longitudinal section of the insertion rod (705) is arranged to be circular, and one end of the insertion rod (705) is plugged into and fitted into the interior of the slot (702).

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