Inclined hot nozzle glue feeding mold for forming deeper product appearance

Abstract

The utility model relates to the technical field of dies, in particular to an inclined hot nozzle glue feeding die for forming a deeper product. Comprising a fixed panel, a front mold main body fixed on the fixed panel, a rear mold main body corresponding to the front mold main body, an ejection mechanism movably connected to the rear mold main body, and a fixed bottom plate which is fixed on the rear mold main body and is in guide fit with the ejection mechanism, a cavity for forming a product is formed between the front mold main body and the rear mold main body, and the ejection mechanism is in butt joint with the cavity; compared with the prior art, the speed of rubber entering the inclined side face can be increased, the rubber can be more evenly dispersed when entering the cavity, all corners of the cavity can be better filled, especially for a product cavity with a complex shape or a deep structure, the situation that local filling is insufficient or excessive filling can be effectively avoided, and the product quality is improved. All parts of the product can be accurately formed, and the overall quality and the size precision of the product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an inclined hot nozzle glue-feeding mold for forming a deeper product shape. Background Art

[0002] In the injection mold industry, molding products with specific geometries has always faced numerous challenges. For example, a product with a special-shaped, conical structure features both oblique and straight sides, which converge to form a pointed apex, giving it an overall deep appearance. With traditional injection molding, when the rubber is injected into the mold, due to the product's unique structure, the direction of injection differs from the direction of force directed by the oblique sides, while the direction of force directed by the straight sides is the same. This results in different injection patterns for the rubber as it flows into the oblique and straight sides. On the oblique sides, because the force direction differs from the injection direction, the rubber flow is less smooth, prone to turbulence and other instabilities. This unstable flow causes a certain degree of surface streaking as the rubber passes over the oblique sides. Streaking severely impacts the product's surface finish, making it even more difficult to achieve the desired molding effect for products that require a transparent appearance. Even minor surface imperfections are noticeable on transparent products, significantly reducing product quality and market competitiveness.

[0003] With the development of various industries, the demand for such products with special-shaped conical structures and deeper appearances is increasing. For example, in the field of high-end decorative products, transparent or translucent conical ornaments with exquisite appearances are also very popular, and their molding quality is directly related to the beauty and value of the product. In household or office daily necessities, such transparent or translucent conical items also have a wide range of application value. Therefore, based on the above problems, it is necessary to propose an improved technical solution. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0005] A mold for molding products with a relatively deep shape and an inclined hot nozzle for glue injection, comprising a fixed panel, a front mold body fixed to the fixed panel, a rear mold body corresponding to the front mold body, an ejection mechanism movably connected to the rear mold body, and a fixed base plate fixed to the rear mold body and guiding the ejection mechanism. A sprue bushing for glue injection is provided on the fixed panel. A cavity for molding the product is formed between the front mold body and the rear mold body. The ejection mechanism is connected to the cavity. A hot nozzle system is provided between the front mold body and the fixed panel, and is connected between the sprue bushing and the cavity.

[0006] The hot nozzle system includes a hot runner plate and an inclined hot nozzle. One end of the hot runner plate is connected to the gate sleeve, and the other end of the hot runner plate extends obliquely. The inclined hot nozzle is connected to the inclined end of the hot runner plate, so that the inclined hot nozzle is obliquely connected to the cavity.

[0007] Preferably, the mold cavity includes an oblique side surface and a straight side surface, and the mold cavity forms a special-shaped conical structure with a pointed top through the oblique side surface and the straight side surface. The oblique hot nozzle is connected to the pointed top position, and the inclination of the oblique hot nozzle corresponds to the inclination of the oblique side surface.

[0008] Preferably, an accommodating cavity is provided between the front mold body and the fixed panel, the hot runner plate is provided in the accommodating cavity, and a heating device surrounding the hot runner plate is also provided in the accommodating cavity.

[0009] Preferably, an inclined through hole connected to the accommodating cavity is provided on the fixed panel, and an inclined fixed block is filled at the opening position of the inclined through hole. A power mechanism with one end inclined toward the hot runner plate is installed inside the inclined through hole. A power mechanism is provided at the inclined end of the hot runner plate. The power mechanism is connected to a valve needle passing through the hot runner plate. The valve needle is inserted into the inclined hot nozzle and docked with the inclined hot nozzle gate.

[0010] Preferably, the front mold body is inlaid with a front mold core, the rear mold body is inlaid with a rear mold core, and the cavity is arranged between the front mold core and the rear mold core.

[0011] Preferably, a front mold cone block abutting against the front mold core is embedded in the front mold body at a position corresponding to the front mold core, and a rear mold cone block abutting against the rear mold core is embedded in the rear mold body at a position corresponding to the rear mold core.

[0012] Preferably, a product outer side profiling groove is opened at the rear of the front mold body, and a product inner side profiling body is installed at the front of the rear mold body. The product outer side profiling groove and the product inner side profiling body are docked and matched to form a cavity structure.

[0013] Preferably, the wall surface of the cavity is configured as a polished surface.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] It can increase the rate at which the rubber enters the inclined side surface, prompting the rubber to be more evenly dispersed when entering the cavity, and better fill every corner of the cavity. Especially for product cavities with complex shapes or deeper structures, it can effectively avoid local insufficient filling or overfilling, ensure that all parts of the product can be accurately molded, and improve the overall quality and dimensional accuracy of the product; because the rubber can enter the cavity evenly and smoothly, it reduces surface defects such as cavitation and weld marks caused by unstable rubber flow. At the same time, the inclined docking method of the inclined hot nozzle also helps to reduce the impact of the rubber on the cavity wall, reducing the possibility of damage to the cavity wall due to impact and thus affecting the surface quality of the product, making the surface of the molded product smoother and flatter, and realizing the injection molding of special-shaped conical structure products with higher appearance requirements.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the front mold core and the rear mold core of the utility model;

[0022] Figure 5 This is a schematic diagram of the split structure of the utility model from one perspective;

[0023] Figure 6 It is a schematic diagram of the split structure of the utility model from another perspective.

[0024] The reference numerals and names in the figures are as follows:

[0025] Fixed panel 10, gate sleeve 11, oblique through hole 12, inclined fixed block 13, power mechanism 14, valve needle 15, front mold body 20, front mold core 21, front mold cone block 22, product outer side profiling groove 23, rear mold body 30, rear mold core 31, rear mold cone block 32, product inner side profiling body 33, ejection mechanism 40, fixed base plate 50, cavity 60, oblique side surface 61, straight side surface 62, pointed top 63, hot runner plate 70, accommodating cavity 71, heating device 72, oblique hot nozzle 80. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. 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.

[0027] See also Figure 1-6 In the embodiment of the present invention, a slanted hot nozzle glue feeding mold for molding a deeper product shape includes a fixed panel 10, a front mold body 20 fixed to the fixed panel 10, a rear mold body 30 corresponding to the front mold body 20, an ejection mechanism 40 movably connected to the rear mold body 30, and a fixed bottom plate 50 fixed to the rear mold body 30 and guided by the ejection mechanism 40. The fixed panel 10 mainly plays the role of fixing the upper structure of the mold. It can ensure that the front mold body 20 and related components maintain a stable position during operation and prevent displacement during operations such as injection molding, thereby ensuring the accuracy and molding quality of the mold; the front mold body 20 usually includes a front mold core 21, and the front mold core 21 and the rear mold core 31 together constitute a part of the mold cavity 60. During the injection molding process, the molten plastic is injected into the mold cavity 60, and the front mold core 21 of the front mold body 20 is responsible for molding a part of the surface features of the plastic part; The main body 30 includes a rear mold core 31, which together with the front mold core 21 constitutes a complete mold cavity 60. The rear mold core 31 is responsible for molding another part of the surface features of the plastic part; the main function of the ejection mechanism 40 is to push the plastic part out of the mold cavity 60 after the plastic part cools and solidifies, so as to realize the demolding of the plastic part. The ejection mechanism 40 is usually composed of components such as ejector pins, ejector rods, and push plates. Through the movement of these components, the plastic part is pushed out from the rear mold core 31; the fixed base plate 50 serves as the bottom structure of the mold and mainly plays the role of supporting the entire mold. It bears the weight of the mold and various forces generated during the injection molding process to ensure the stability of the mold; in order to make the product have a high surface finish after molding, polishing the mold cavity 60 can make the surface of the cavity 60 smoother, thereby making the surface of the plastic part smoother during the injection molding process, and the smooth surface of the cavity 60 can reduce defects, scratches and unevenness on the surface of the plastic part, thereby improving the appearance quality of the plastic part.

[0028] On the basis of the above technical solution, it is further proposed that a gate sleeve 11 for injecting glue is provided on the fixed panel 10, a cavity 60 for molding the product is formed between the front mold body 20 and the rear mold body 30, the ejection mechanism 40 is connected to the cavity 60, and a hot nozzle system is provided between the front mold body 20 and the fixed panel 10, which is connected between the gate sleeve 11 and the cavity 60; the hot nozzle system has a hot runner plate 70 and an inclined hot nozzle 80, one end of the hot runner plate 70 is connected to the gate sleeve 11, and the other end of the hot runner plate 70 extends obliquely, and the inclined hot nozzle 80 is connected to the inclined end of the hot runner plate 70, so that the inclined hot nozzle 80 is obliquely connected to the cavity 60.

[0029] Through the natural flow trend of the rubber entering the cavity 60, the angle of the oblique hot nozzle 80 is changed, so that the oblique hot nozzle 80 is obliquely docked with the cavity 60. The cavity 60 includes an oblique side surface 61 and a straight side surface 62. The cavity 60 forms a special-shaped cone structure with a peak 63 through the oblique side surface 61 and the straight side surface 62. The oblique hot nozzle 80 is docked at the position of the peak 63, and the inclination of the oblique hot nozzle 80 corresponds to the inclination of the oblique side surface 61. Through this matching method, the rate at which the rubber enters the oblique side surface 61 can be increased, so that the rubber can be more evenly dispersed when entering the cavity 60, and better fill every corner of the cavity 60, especially for those with complex shapes or deeper structures. The product cavity 60 can effectively avoid the occurrence of local insufficient filling or overfilling, ensuring that all parts of the product can be accurately molded, thereby improving the overall quality and dimensional accuracy of the product; since the rubber can enter the cavity 60 evenly and smoothly, surface defects such as air pockets and weld marks caused by unstable rubber flow are reduced. At the same time, the inclined docking method of the inclined hot nozzle 80 also helps to reduce the impact of the rubber on the wall of the cavity 60, reducing the possibility of damage to the wall of the cavity 60 due to impact and thus affecting the surface quality of the product, making the surface of the molded product smoother and flatter, and realizing the injection molding of special-shaped conical structure products with higher appearance requirements.

[0030] Please refer to Figure 2 、 Figure 3 and Figure 5 On the basis of the above technical solution, it is further proposed that a accommodating cavity 71 is provided between the front mold body 20 and the fixed panel 10, the hot runner plate 70 is provided in the accommodating cavity 71, and a heating device 72 surrounding the hot runner plate 70 is also provided in the accommodating cavity 71; after the rubber material enters the mold along the gate sleeve 11 from the injection molding machine, it enters the inclined hot nozzle 80 along the hot runner plate 70. During this process, it is heated by the provided heating device 72, so that the rubber material can always maintain a molten state and finally flow smoothly into the cavity 60.

[0031] Please refer to Figure 3The cam 14 of the embodiment of the present invention is a kind of cam 14 that is used for the purpose of adjusting the pressure on the cam 12 and adjusting the pressure on the cam 12. The cam 14 of the embodiment of the present invention is a cam 14 that is used for the purpose of adjusting the pressure on the cam 12 and adjusting the pressure on the cam 12.

[0032] Please refer to Figure 2 and Figure 4-6 On the basis of the above technical solution, it is further proposed that the front mold body 20 is inlaid with a front mold core 21, the rear mold body 30 is inlaid with a rear mold core 31, and the cavity 60 is arranged between the front mold core 21 and the rear mold core 31; a front mold cone block 22 abutting against the front mold core 21 is inlaid at a position of the front mold body 20 corresponding to the side of the front mold core 21, and a rear mold cone block 32 abutting against the rear mold core 31 is inlaid at a position of the rear mold body 30 corresponding to the side of the rear mold core 31. The front mold cone block 22 and the rear mold cone block 32 are both located at the same position between the front mold body 20 and the rear mold body 30, and apply a pressing force in the same direction to the front mold core 21 and the rear mold core 31; through this arrangement, the front mold core 21 and the rear mold core 31 can achieve higher matching accuracy after installation, thereby improving the accuracy of the product parting line position. A product outer side profiling groove 23 is provided at the rear of the front mold body 20, and a product inner side profiling body 33 is installed at the front of the rear mold body 30. The product outer side profiling groove 23 and the product inner side profiling body 33 are docked and matched to form the structure of the cavity 60. The structure is simple in design and is tilted at a certain small angle at the position corresponding to the straight side surface 62 to ensure that the product can be minimized from being stretched during the mold opening process, thereby improving the quality of the molded product.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A mold with an oblique hot nozzle for molding a deeper product shape, characterized in that: The invention comprises a fixed panel (10), a front mold body (20) fixed to the fixed panel (10), a rear mold body (30) corresponding to the front mold body (20), an ejection mechanism (40) movably connected to the rear mold body (30), and a fixed base plate (50) fixed to the rear mold body (30) and guidingly matched with the ejection mechanism (40); a sprue sleeve (11) for injecting glue is provided on the fixed panel (10); a cavity (60) for molding a product is formed between the front mold body (20) and the rear mold body (30); the ejection mechanism (40) is docked with the cavity (60); and a hot nozzle system is provided between the front mold body (20) and the fixed panel (10) and docked between the sprue sleeve (11) and the cavity (60); The hot nozzle system comprises a hot runner plate (70) and an inclined hot nozzle (80), one end of the hot runner plate (70) is connected to the gate sleeve (11), the other end of the hot runner plate (70) extends obliquely, and the inclined hot nozzle (80) is connected to the inclined end of the hot runner plate (70), so that the inclined hot nozzle (80) is obliquely connected to the mold cavity (60).

2. The oblique hot nozzle glue feeding mold for forming a deeper product shape according to claim 1, characterized in that: The mold cavity (60) includes an oblique side surface (61) and a straight side surface (62). The mold cavity (60) forms a special-shaped conical structure with a pointed top (63) through the oblique side surface (61) and the straight side surface (62). The oblique hot nozzle (80) is connected to the pointed top (63), and the inclination of the oblique hot nozzle (80) corresponds to the inclination of the oblique side surface (61).

3. The oblique hot nozzle molding die for forming a deeper product shape according to claim 1, characterized in that: An accommodating cavity (71) is provided between the front mold body (20) and the fixed panel (10), the hot runner plate (70) is provided in the accommodating cavity (71), and a heating device (72) surrounding the hot runner plate (70) is also provided in the accommodating cavity (71).

4. The oblique hot nozzle injection mold for forming a deeper product shape according to claim 3, characterized in that: An oblique through hole (12) connected to the accommodating cavity (71) is provided on the fixed panel (10), and an oblique fixed block (13) is filled at the opening position of the oblique through hole (12). A power mechanism (14) is installed inside the oblique through hole (12) with one end inclined toward the hot runner plate (70). A power mechanism (14) is provided at the inclined end of the hot runner plate (70). The power mechanism (14) is connected to a valve needle (15) passing through the hot runner plate (70). The valve needle (15) is inserted into the oblique hot nozzle (80) and docked with the oblique hot nozzle gate.

5. The oblique hot nozzle injection mold for forming a deeper product shape according to claim 1, characterized in that: The front mold body (20) is inlaid with a front mold core (21), the rear mold body (30) is inlaid with a rear mold core (31), and the mold cavity (60) is arranged between the front mold core (21) and the rear mold core (31).

6. The oblique hot nozzle molding die for forming a deeper product shape according to claim 5, characterized in that: A front mold cone block (22) is embedded in the front mold body (20) at a position corresponding to the front mold core (21) and is in contact with the front mold core (21). A rear mold cone block (32) is embedded in the rear mold body (30) at a position corresponding to the rear mold core (31) and is in contact with the rear mold core (31).

7. The oblique hot nozzle molding die for forming a deeper product shape according to claim 5, characterized in that: The rear portion of the front mold body (20) is provided with a product outer profile groove (23), and the front portion of the rear mold body (30) is provided with a product inner profile body (33). The product outer profile groove (23) and the product inner profile body (33) are butted together to form a mold cavity (60).

8. A mold for molding a deeper product shape with an inclined hot nozzle according to any one of claims 1 to 7, characterized in that: The wall surface of the cavity (60) is configured as a polished surface.

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