A launch chamber mold

Abstract

The utility model relates to mould technical field, concretely relates to a launch cavity mould, include: upper die, middle die and lower die, and the upper die and lower die connection position are equipped with liquid inlet hole for injection injection solution, wherein, the middle die includes the outer layer cover body, inner layer cover body and inner cavity cover body that set gradually from outside to inside, and the inner cavity cover body and inner layer cover body form product between, the outer layer cover body is inserted between the upper die and lower die, the inner layer cover body is inserted on the upper die, and is slidably arranged on the lower die, in the utility model, the inner layer cover body is slidably arranged on the lower die, in the mould opening and product demoulding process, the inner layer cover body can be relative lower die flexible movement, compared with traditional integral demoulding mode, the step -by -step sliding demoulding mode is more relaxed, can effectively reduce the demoulding difficulty, improves the demoulding efficiency, reduces the damage to product simultaneously because of the forcible demoulding, protects the appearance and internal structure integrity of product.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a firing cavity mold. Background Technology

[0002] In the field of precision manufacturing, especially in the production of parts involving complex geometries or high precision requirements, the design and manufacturing process of molds directly determine the molding quality, production efficiency, and cost control of the product. As a typical precision structural component, the launch cavity (such as launch cavities in aerospace, communication equipment, and optical instruments) typically contains complex features such as multi-level steps, curved surfaces, grooves, or irregularly shaped holes, placing extremely high demands on the molding accuracy and demolding reliability of the mold.

[0003] Traditional mold release methods often employ vertical parting or lateral core-pulling structures, achieving separation of the core from the product through simple linear motion. However, for products with special shape requirements such as firing cavities (e.g., asymmetrical internal structures, deep cavities with thin walls, or local undercut features), traditional release methods have significant limitations.

[0004] If demolding is forcibly performed through vertical or lateral linear motion, the core and the inner wall of the product are prone to interference due to friction or the undercut structure, resulting in scratches, deformation, or even cracks on the product surface, and a significant increase in the scrap rate.

[0005] Therefore, this application develops a launch cavity mold to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this invention is to provide a firing cavity mold to solve the problem of inconvenient disassembly and repair of sodium molds in the prior art.

[0007] The technical solution of this utility model is: a firing cavity mold, comprising: an upper mold, a middle mold and a lower mold, wherein a liquid inlet hole is provided at the connection position between the upper mold and the lower mold for injecting injection molding solution; The middle mold includes an outer cover, an inner cover, and an inner cavity cover arranged sequentially from the outside to the inside. The inner cavity cover and the inner cover form a product. The outer cover is inserted between the upper mold and the lower mold. The inner cover is inserted on the upper mold and slidably disposed on the lower mold.

[0008] Preferably, the lower mold has multiple sliding grooves, and the inner cover includes multiple first side plates connected end to end in sequence. The first side plates have sliding parts, and the first side plates are slidably disposed in the sliding grooves in a direction away from the inner cover through the sliding parts.

[0009] Preferably, the outer cover includes multiple second side plates connected end to end in sequence. The two ends of the second side plates are respectively provided with a first insertion part and a second insertion part. A slot is opened on the slide groove, and the first insertion part is inserted into the slot to fix the first side plate.

[0010] Preferably, the upper mold has a mounting groove on the side closest to the lower mold, and the second insertion part and the end of the first side plate away from the sliding part together form a mounting part. When the upper mold is installed, the shape of the mounting part matches the shape of the mounting groove.

[0011] Preferably, each of the first side plates has a protrusion on the side closest to the second side plate, and the protrusion has a flat structure.

[0012] Preferably, the inner cavity cover has a first cover and a second cover, the first cover and the second cover having a first protrusion on the side near the upper mold, and the second cover having a second protrusion on the side away from the liquid inlet.

[0013] Compared with the prior art, the advantages of this utility model are: (1) The outer cover is composed of multiple second side plates connected end to end. The first insertion part at both ends is tightly inserted into the slot on the lower mold slide to achieve a stable connection between the outer cover and the lower mold. This not only effectively resists the pressure and impact during the injection molding process, prevents the outer cover from loosening and shifting, and ensures the overall stability of the mold structure, but also fixes and positions the first side plate of the inner cover, ensuring the relative position accuracy of each part of the mold. (2) The inner cover is slidably set on the lower mold. During the mold opening and product demolding process, the inner cover can move flexibly relative to the lower mold. Compared with the traditional whole demolding method, the step-by-step sliding demolding method is easier, which can effectively reduce the demolding difficulty, improve the demolding efficiency, and at the same time reduce the damage to the product caused by forced demolding, and protect the appearance and internal structure integrity of the product. (3) During the assembly and operation of the mold, the first side plate can slide smoothly in the groove along the direction away from the inner cavity cover, accurately control the movement direction of the inner cover, avoid deviation and shaking, ensure the relative position accuracy of each part of the mold, improve the product molding quality, and ensure that the product size and shape meet the design requirements. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is an exploded view of the firing cavity mold described in this utility model; Figure 2 This is an exploded view of the intermediate mold described in this utility model; Figure 3This is a schematic diagram of the structure of the lower mold described in this utility model; Figure 4 This is a schematic diagram of the structure of the lower mold described in this utility model; Figure 5 This is a structural schematic diagram of the product described in this utility model.

[0015] The components are: 1. Upper mold; 11. Mounting groove; 2. Middle mold; 21. Outer cover; 211. Second side plate; 212. First insertion part; 213. Second insertion part; 214. Protrusion; 22. Inner cover; 221. First side plate; 222. Sliding part; 23. Inner cavity cover; 231. First cover; 232. Second cover; 233. First protrusion; 234. Second protrusion; 24. Mounting part; 3. Lower mold; 31. Slide groove; 32. Slot; 4. Liquid inlet hole. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to specific embodiments: like Figures 1-2 and Figure 5 As shown, a firing cavity mold includes an upper mold 1, a middle mold 2, and a lower mold 3. A liquid inlet 4 is provided at the connection point between the upper mold 1 and the lower mold 3, serving as an injection channel for the injection molding solution. The injection molding solution is injected into the mold to complete subsequent injection molding operations. The middle mold 2 includes an outer cover 21, an inner cover 22, and an inner cavity cover 23 arranged sequentially from the outside to the inside. In the mold's working state, the space between the inner cavity cover 23 and the inner cover 22 is used to mold the product; that is, the injection molding solution fills this space, cools, and solidifies to form the desired product shape. The outer cover 21 is inserted between the upper mold 1 and the lower mold 3. The inner cover 22, consisting of the outer cover 21, inner cover 22, and inner cavity cover 23, serves a certain positioning and supporting function, helping to ensure the relative positional accuracy between the various parts of the mold. On one hand, it is inserted into the upper mold 1 for initial positioning; on the other hand, it slides on the lower mold 3, allowing the inner cover 22 to move relative to the lower mold 3 within a certain range. This facilitates mold opening and closing operations and smooth product demolding. Through the layered design of the outer cover 21, inner cover 22, and inner cavity cover 23, the filling range and shape of the injection molding solution can be strictly controlled, effectively ensuring the dimensional and shape accuracy of the product and greatly improving the product qualification rate. In practical applications, each of the first side plates 221 has a protrusion 214 on the side near the second side plate 211, and it has a flat structure. While meeting specific functional requirements, it also takes into account the overall performance of the mold and the requirements of the production process. When demolding, the upper mold 1, the outer cover 21, the inner cover 22, and the inner cavity cover 23 are removed in sequence. The inner cover 22 is slidably disposed on the lower mold 3, so that the inner cover 22 can move flexibly relative to the lower mold 3 during the mold opening and product demolding process. In this embodiment, this method can reduce the adhesion resistance between the product and the mold on the flat protrusion 214, making it easier for the product to be smoothly removed from the mold and protecting the appearance quality and internal structural integrity of the product.

[0017] In this embodiment, as Figures 2-3 As shown, the lower mold 3 has multiple grooves 31. The inner cover 22 is formed by connecting multiple first side plates 221 end to end to form a complete inner cover 22 frame. Each first side plate 221 has a sliding part 222 that matches the shape of the groove 31. During mold assembly and operation, the sliding part 222 on the first side plate 221 allows the first side plate 221 to slide smoothly in the groove 31 in a direction away from the inner cover 23. This allows for precise control of the movement direction of the inner cover 22, avoiding offset and shaking during movement, ensuring the relative positional accuracy between the mold components, thereby improving the molding quality of the product and ensuring that the product size and shape meet the design requirements. Compared with the traditional whole-piece demolding method, the step-by-step sliding demolding method is easier, effectively reducing demolding difficulty, improving demolding efficiency, and reducing damage to the product caused by forced demolding, protecting the product's appearance and internal structural integrity.

[0018] Furthermore, the outer cover 21 is composed of multiple second side plates 211 connected end to end to form a complete frame of the outer cover 21 that fits the mold design requirements. Each second side plate 211 has a first insertion part 212 and a second insertion part 213 at both ends. Simultaneously, a slot 32 is provided on the slide groove 31 of the lower mold 3, corresponding to the connection position of the second side plate 211. During mold assembly, the first insertion part 212 of the second side plate 211 is accurately inserted into the slot 32 on the slide groove 31, achieving a stable connection between the outer cover 21 and the lower mold 3, and also fixing and positioning the first side plate 221 of the inner cover 22. During injection molding, the mold will withstand significant pressure and impact, and the tight fit between the first insertion part 212 and the slot 32 effectively resists these external forces, preventing the outer cover 21 from loosening or shifting, thereby ensuring the overall structural stability of the mold.

[0019] like Figure 2 and Figure 4As shown, the upper mold 1 has a mounting groove 11 on the side near the lower mold 3. The second insertion part 213 and the end of the first side plate 221 away from the sliding part 222 together form a mounting part 24, and the mounting part 24 is adapted to the mounting groove 11. When the upper mold 1 is installed, the upper mold 1 is slowly brought close to the lower mold 3 so that the mounting part 24 is accurately aligned with the mounting groove 11. Then, appropriate pressure is applied so that the mounting part 24 can be smoothly embedded into the mounting groove 11. Since the shape of the mounting part 24 and the mounting groove 11 match, the two can fit tightly together to form a stable connection structure, which significantly enhances the connection strength between the upper mold 1 and the lower mold 3, as well as the outer cover 21 and the inner cover 22.

[0020] During installation, staff only need to align the installation part 24 with the installation slot 11 to quickly and accurately install the upper mold 1 into the correct position, which greatly improves the assembly efficiency and positioning accuracy of the mold, thereby effectively improving the dimensional accuracy and shape accuracy of the product and reducing the product defect rate caused by positioning deviation.

[0021] Furthermore, the inner cavity cover 23 includes a first cover 231 and a second cover 232. From the overall structure, both the first cover 231 and the second cover 232 are provided with a first protrusion 233 on the side near the upper mold 1, which facilitates the demolding of the inner cavity cover 23. In addition, according to the product shape requirements, a second protrusion 234 is also provided on the side of the second cover 232 away from the liquid inlet 4. During demolding, the first cover 231 is moved closer to the first cover 231 and then removed from the inner cavity cover 23. At this time, the product provides a moving track for the second cover 232, which can prevent the product from deforming or cracking.

[0022] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A firing cavity mold, characterized in that, include: The upper mold (1), the middle mold (2) and the lower mold (3) are provided with a liquid inlet (4) at the connection position of the upper mold (1) and the lower mold (3) for injecting injection molding solution; The middle mold (2) includes an outer cover (21), an inner cover (22) and an inner cavity cover (23) arranged sequentially from the outside to the inside. The inner cavity cover (23) and the inner cover (22) form a product. The outer cover (21) is inserted between the upper mold (1) and the lower mold (3). The inner cover (22) is inserted on the upper mold (1) and slidably disposed on the lower mold (3).

2. The firing cavity mold according to claim 1, characterized in that: The lower mold (3) has multiple grooves (31), and the inner cover (22) includes multiple first side plates (221) connected end to end in sequence. The first side plate (221) has a sliding part (222), and the first side plate (221) is slidably disposed in the groove (31) in a direction away from the inner cover (23) by means of the sliding part (222).

3. The firing cavity mold according to claim 2, characterized in that: The outer cover (21) includes multiple second side plates (211) connected end to end in sequence. The two ends of the second side plate (211) are respectively provided with a first insertion part (212) and a second insertion part (213). The groove (31) has a slot (32) and the first insertion part (212) is inserted into the slot (32) to fix the first side plate (221).

4. The firing cavity mold according to claim 3, characterized in that: The upper mold (1) has a mounting groove (11) on the side near the lower mold (3). The second insertion part (213) and the end of the first side plate (221) away from the sliding part (222) together form a mounting part (24). When the upper mold (1) is installed, the shape of the mounting part (24) matches that of the mounting groove (11).

5. The firing cavity mold according to claim 3, characterized in that: Each of the first side plates (221) has a protrusion (214) on the side near the second side plate (211), and the protrusion (214) has a flat structure.

6. The firing cavity mold according to claim 1, characterized in that: The inner cavity cover (23) has a first cover (231) and a second cover (232). The first cover (231) and the second cover (232) are provided with a first protrusion (233) on the side close to the upper mold (1), and the second cover (232) is provided with a second protrusion (234) on the side away from the liquid inlet (4).

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