Plastic mold with a guide self-locking mechanism
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN SHUNDE ZHINENG PRECISION MOULD CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-07
AI Technical Summary
Existing plastic molds lack guiding control and self-locking mechanisms, making it difficult to disassemble parts and easy to damage them, and failing to achieve efficient and safe molding of glass fiber reinforced plastics.
A plastic mold with a guide and self-locking mechanism was designed. By setting processing grooves, slides and slots in the mold base, the mold can be automatically guided, positioned and self-locked by hydraulic rods and support plates. The stability is enhanced by the vacuum groove and the plasticity of the material is improved by the heating plate.
It achieves stable guidance and precise positioning of the mold during processing, improves the molding efficiency and precision of glass fiber reinforced plastics, avoids part damage and material cold joining, and improves product quality.
Smart Images

Figure CN224465049U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plastic molds, specifically a plastic mold with a guide self-locking mechanism. Background Technology
[0002] Plastic molds are the core tools used for molding plastic products. They allow molten plastic to be injected at high speed into the mold cavity, where it cools and forms a plastic product of a specific shape. It is one of the most widely used and most efficient molding methods in the plastics processing industry.
[0003] However, the existing mold structure lacks clear guidance control or self-locking mechanisms, still relying on traditional clamping methods, which limits the full utilization of material properties. Therefore, there is an urgent need to provide a plastic mold with automatic guidance and self-locking mechanisms to improve the molding efficiency and precision control of glass fiber reinforced plastics under efficient and safe conditions. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this utility model is to provide a plastic mold with a guide self-locking mechanism, thereby solving the problems mentioned in the background art, where most audio equipment consists of multiple parts that are fixed together, making disassembly very troublesome for users and easily damaging the audio equipment. Furthermore, if parts are lost, proper fixing is not possible.
[0005] To achieve the above objectives, this utility model proposes a plastic mold with a guide self-locking mechanism, comprising: a mold base, which is used for processing and manufacturing glass fiber reinforced plastic; a processing groove is provided at the center of the top of the mold base, and sliding grooves are provided at the lower ends of both sides of the inner wall of the processing groove; characterized in that: two ends of one side of the outer wall of the mold base are respectively provided with locking holes, and a first hydraulic rod is respectively locked inside the two locking holes; a second hydraulic rod is locked at each of the four corners of the top of the mold base; and a vacuum groove is provided at the upper end of the inner wall of the mold base.
[0006] Preferably, a limit strip is fixedly installed on one edge of the inner wall of the processing groove.
[0007] Preferably, a support plate is fixedly connected to the top of one of the second hydraulic rods, and the four bottom corners of the support plate are respectively fixedly connected to one end of the four second hydraulic rods.
[0008] Preferably, a die-casting block is fixedly installed at the bottom center of the support plate, and an installation groove is provided on the inner wall of the die-casting block, with a heating plate clamped in the inner wall of the installation groove.
[0009] Preferably, a forming mold is fitted on the inner wall of the processing groove, and one side of the forming mold abuts against the limiting strip; two retaining strips are fixedly installed on both sides of the outer wall of the forming mold, and the outer walls of the two retaining strips are slidably connected to the inner walls of the corresponding sliding grooves; a connecting strip is fixedly connected to one side of the bottom of the two retaining strips, and the two connecting strips are fixedly connected to one end of the two first hydraulic rods; and support pads are fixedly provided at the four corners of the bottom of the mold base.
[0010] Preferably, a switch panel is provided on one side of the outer wall of the mold base, and a heating plate switch is provided on the switch panel, through which the heating plate is electrically connected to an external power supply.
[0011] The plastic mold with a guiding self-locking mechanism proposed in this utility model can bring the following beneficial effects:
[0012] This invention features a processing groove, a sliding groove, and a retaining groove structure within the mold base. The retaining strip on the forming mold slides into the sliding groove, enabling automatic guidance and positioning of the mold components during processing. The connecting strip is linked to the first hydraulic rod, allowing the mold to be smoothly guided into the processing area without manual intervention. Combined with the limiting strip, precise mold position control is achieved, significantly improving the stability and repeatability of mold guidance. Attached Figure Description
[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the processing groove and the hydraulic rod automatic feeding switch of this utility model;
[0016] Figure 3 This is a schematic diagram of the heating plate and die-casting block heating and stamping structure of this utility model.
[0017] In the diagram: 1. Mold base; 2. Machining groove; 3. Slide groove; 4. Clamping hole; 5. First hydraulic rod; 6. Second hydraulic rod; 7. Vacuum groove; 8. Limiting strip; 9. Support plate; 10. Die casting block; 11. Mounting groove; 12. Heating plate; 13. Forming mold; 14. Clamping strip; 15. Connecting strip; 16. Support pad. Detailed Implementation
[0018] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.
[0019] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.
[0023] Example 1: This utility model provides the following... Figure 1-3The plastic mold shown includes a mold base 1, a forming mold 13 is fitted into the inner wall of the processing groove 2, and one side of the forming mold 13 contacts one side of the limiting strip 8. Both sides of the outer wall of the forming mold 13 are fixedly provided with locking strips 14, and the outer walls of the two locking strips 14 are slidably connected to the inner walls of the two sliding grooves 3 respectively. One side of the bottom of the two locking strips 14 is fixedly provided with connecting strips 15, and one end of the two first hydraulic rods 5 is fixedly connected to one side of the two connecting strips 15 respectively. Support pads 16 are fixedly provided at the four corners of the bottom of the mold base 1. A switch panel is fixedly provided on one side of the outer wall of the mold base 1. A heating plate switch is opened on one side of the switch panel, and the heating plate 12 is electrically connected to an external power supply through the heating plate switch.
[0024] Example 2: This utility model provides the following... Figure 2 The plastic mold shown has a self-locking guide mechanism. A processing groove 2 is provided at the middle of the top of the mold base 1. Sliding grooves 3 are provided at the lower ends of both sides of the inner wall of the processing groove 2. A locking hole 4 is provided at both ends of one side of the outer wall of the mold base 1. A first hydraulic rod 5 is engaged with the inner wall of both locking holes 4. A second hydraulic rod 6 is engaged with the four corners of the top of the mold base 1. A vacuum groove 7 is provided at the upper end of the inner wall of the mold base 1. A limiting strip 8 is fixed at the edge of one side of the inner wall of the processing groove 2.
[0025] Example 3: This utility model provides the following... Figure 3 The plastic mold shown has a guide self-locking mechanism. A support plate 9 is fixedly provided at the top of one of the second hydraulic rods 6, and the four corners of the bottom of the support plate 9 are respectively fixedly connected to one end of the four second hydraulic rods 6. A die-casting block 10 is fixedly provided at the middle position of the bottom of the support plate 9. An installation groove 11 is opened on the inner wall of the die-casting block 10, and a heating plate 12 is engaged on the inner wall of the installation groove 11.
[0026] Working principle: Before operation, the mold is in an initial standby state. The first hydraulic rod 5 and the second hydraulic rod 6 are both in their initial extended or retracted positions. After the glass fiber reinforced material is pre-installed on the outside of the forming mold 13, the retaining strips 14 on both sides align with the sliding grooves 3 on both sides of the processing groove 2 on the mold base 1 and slide in. Under the combined force of gravity and manual pushing, the forming mold 13 slides along the sliding groove 3 into the processing groove 2. The retaining strips 14 slide against the inner wall of the sliding groove 3 to form precise guidance, ensuring smooth mold movement. When the forming mold 13 slides along the bottom of the sliding groove to the middle of the processing groove 2, one side of its outer wall contacts the limiting strip 8 to form a limit, thereby achieving precise mold positioning. The connecting strips 15 connected to the bottom of the forming mold are fixedly connected to the extended ends of the first hydraulic rods 5 on the left and right sides. When the first hydraulic rods 5 are activated, they push the connecting strips 15 to lift the entire forming mold 13 slightly upward and press it tightly to the bottom of the processing groove 2. The hydraulic drive forms an initial locking pressure to prevent the mold from shifting during subsequent pressing. The mold base 1 is equipped with a vacuum groove 7. At this time, the air extraction system can be activated to form a negative pressure state to enhance the contact stability between the mold and the processing groove and further enhance the positioning and self-locking effect. After the forming mold 13 is locked, the equipment enters the next stage. The second hydraulic rod 6 is activated, and the four hydraulic rods press down synchronously, driving the support plate 9. The entire structure descends; the support plate 9 and the die-casting block 10 fixed below it move downwards together, pressing the die-casting block 10 vertically into the positioned molding mold 13; during the die-casting process, the bottom surface of the die-casting block 10 is in direct contact with the glass fiber reinforced material, undergoing isobaric pressing; throughout the pressing process, the mold is stably supported by four support pads 16 to ensure uniform pressure; the support plate 9 and the die-casting block 10 constitute the main pressing mechanism of the mold, achieving efficient shaping; an installation groove 11 is provided inside the die-casting block 10, and the heating plate 12 is fitted into the installation groove 11; the heating plate switch on the switch panel is activated, energizing the heating plate 12 and heating the die-casting block 10 body. Heat is transferred to the glass fiber plastic inside the mold; heating assistance can improve the plasticity and fusion of the material under compression, improve the product molding quality and density, and avoid material cold bonding or peeling; after the die casting is completed, the heating power is turned off; the second hydraulic rod 6 moves in the opposite direction, causing the support plate 9 and the die casting block 10 to move upward as a whole, away from the molding mold 13; the first hydraulic rod 5 then moves in the opposite direction, pulling the connecting strip 15 to slide the molding mold 13 backward; the molding mold 13 slides out of the processing groove 2 along the slide groove 3 through the clamping strip 14, completing one molding cycle; the operator can remove the mold, take out the molded product, and proceed to the next round of glass fiber filling, preparing for the next cycle.
[0027] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.
[0028] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A plastic mold with a guiding self-locking mechanism, comprising: A mold base (1) is used for the processing and manufacturing of glass fiber reinforced plastic; a processing groove (2) is provided at the middle of the top of the mold base (1), and a sliding groove (3) is provided at the lower ends of both sides of the inner wall of the processing groove (2); characterized in that: a locking hole (4) is provided at both ends of one side of the outer wall of the mold base (1), and a first hydraulic rod (5) is respectively locked inside the two locking holes (4); a second hydraulic rod (6) is locked at the four corners of the top of the mold base (1); a vacuum groove (7) is provided at the upper end of the inner wall of the mold base (1).
2. The plastic mold according to claim 1, characterized in that: A limit strip (8) is fixedly installed on one side edge of the inner wall of the processing groove (2).
3. The plastic mold according to claim 1, characterized in that: One of the second hydraulic rods (6) has a support plate (9) fixedly connected to its top end, and the four corners of the bottom of the support plate (9) are fixedly connected to one end of each of the four second hydraulic rods (6).
4. The plastic mold according to claim 3, characterized in that: A die-cast block (10) is fixedly installed at the bottom center of the support plate (9). An installation groove (11) is provided on the inner wall of the die-cast block (10), and a heating plate (12) is clamped on the inner wall of the installation groove (11).
5. The plastic mold according to claim 1, characterized in that: The inner wall of the processing groove (2) is fitted with a forming mold (13), and one side of the forming mold (13) abuts against the limiting strip (8); both sides of the outer wall of the forming mold (13) are fixedly installed with locking strips (14), and the outer walls of the two locking strips (14) are slidably connected to the inner wall of the corresponding sliding groove (3); one side of the bottom of the two locking strips (14) is fixedly connected with a connecting strip (15), and the two connecting strips (15) are fixedly connected to one end of the two first hydraulic rods (5); support pads (16) are fixedly provided at the four corners of the bottom of the mold base (1).
6. The plastic mold according to claim 4, characterized in that: The mold base (1) has a switch panel on one side of its outer wall. The switch panel has a heating plate switch, and the heating plate (12) is electrically connected to an external power source through the switch.