Three-head hot nozzle structure
By designing a three-head hot nozzle structure, three tips are set at the bottom of the nozzle core and the glue holes are evenly distributed, which solves the problems of eccentricity of single-head tips and small spacing of multi-head hot nozzles, and achieves uniform glue injection and high-quality molding of injection molded products.
Patent Information
- Application Number
- CN202422338465.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The existing single-tip hot nozzle is prone to eccentricity during injection molding, which affects the injection molding quality. The multi-head hot nozzle structure cannot achieve multi-point glue injection within a small spacing.
A three-multi-head hot nozzle structure is designed, with three tips at the bottom of the nozzle core, and there are glue-out holes on the side of each tip. The molten material enters the tip core flow channel through the glue-out flow channel and disperses into the three glue-out holes to achieve uniform glue-out.
The uniformity of glue injection is ensured through uniform distribution of glue output holes, and the quality of injection molded products is improved. It is suitable for multi-hole small product molds.
Smart Images
Figure CN223131270U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hot runner, and particularly relates to a three multi-head hot nozzle structure. Background Technique
[0002] The hot nozzle, also known as an injection nozzle, is an important component in injection molding. Plastic materials that are completely melted by screw stirring at a certain temperature are injected into the mold cavity through the hot nozzle under high pressure. After cooling and solidification, the molded product is obtained. This method is suitable for mass production of parts with complex shapes and is one of the important processing methods.
[0003] Traditional hot nozzles generally have a single nozzle tip structure, with single-point glue injection during injection molding. This method is prone to eccentricity during injection molding, affecting the injection molding quality. Some are set as multi-head hot nozzle structures, with multiple nozzle cores to increase the number of glue outlet holes. However, due to the influence of the size of the hot nozzle core itself, the distance between two nozzle cores cannot be reduced, and the nozzle tips of two hot nozzles still cannot be arranged simultaneously within a spacing of 3 - 10 mm, so the effect of multi-point glue injection cannot be achieved, and there are some deficiencies in use. Summary of the Utility Model
[0004] The utility model provides a three multi-head hot nozzle structure, aiming to solve the problem that the existing hot nozzle with a single nozzle tip structure has single-point glue injection during injection molding, is prone to eccentricity, and affects the injection molding quality.
[0005] The utility model is realized as follows. A three multi-head hot nozzle structure includes a nozzle body and a nozzle core. The inner cavity of the nozzle body is provided with a glue inlet channel that penetrates to the top. The three multi-head hot nozzle structure of the nozzle core is arranged at the bottom of the inner cavity of the nozzle body. The inner cavity of the nozzle core is provided with a nozzle core channel that communicates with the glue inlet channel. The bottom end of the nozzle core is provided with three nozzle tips, and a glue outlet hole that communicates with the nozzle core channel is opened on the side of each nozzle tip.
[0006] Preferably, the three nozzle tips are evenly spaced on a circular trajectory.
[0007] Preferably, a sealant sleeve is arranged between the nozzle core and the nozzle body.
[0008] Beneficial effects
[0009] Compared with the prior art, the beneficial effect of the utility model is that: for the three multi-head hot nozzle structure of the utility model, by arranging three nozzle tips at the bottom end of a nozzle core, and a glue outlet hole is opened on the side of each nozzle tip, the molten material enters the nozzle core channel through the glue inlet channel, and then is dispersed into the three glue outlet holes for simultaneous glue injection. The distance between the three glue injection points is small, ensuring the uniformity of glue injection and improving the quality of injection molded products. Description of the Drawings
[0010] Figure 1It is a schematic structural view of the present utility model;
[0011] Figure 2 It is a schematic cross-sectional structural view of the present utility model.
[0012] In the figure: 1-nozzle body, 2-nozzle core, 3-gate runner, 4-nozzle core runner, 5-gate hole, 6-nozzle tip, 7-sealing rubber sleeve. Specific embodiments
[0013] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0014] Please refer to Figures 1-2 , the present utility model provides a technical solution: a three-multi-head hot nozzle structure, including a nozzle body 1 and a nozzle core 2. A gate runner 3 penetrating to the top is provided in the inner cavity of the nozzle body 1. The nozzle core 2 is arranged at the bottom of the inner cavity of the nozzle body 1. A nozzle core runner 4 communicating with the gate runner 3 is provided in the inner cavity of the nozzle core 2. Three nozzle tips 6 are provided at the bottom end of the nozzle core 2, and a gate hole 5 communicating with the nozzle core runner 4 is opened on the side of each nozzle tip 6.
[0015] By providing three nozzle tips 6 at the bottom end of one nozzle core 2, and a gate hole 5 is opened on the side of each nozzle tip 6, the molten material enters the nozzle core runner 4 through the gate runner 3 and then is dispersed into the three gate holes 5, and at the same time, gating and injection molding are carried out. The distance between the three gating points is small, which ensures the gating uniformity and improves the quality of the injection molded product. It is suitable for multi-cavity small product molds, such as products like syringe barrels.
[0016] Further, the three nozzle tips 6 are evenly spaced on a circular track.
[0017] In this embodiment, the three nozzle tips 6 are evenly spaced, which also makes the three gate holes 5 evenly spaced, and the gating is more uniform, enabling the material to evenly cover the cavity and improving the quality of the injection molded product.
[0018] Further, a sealing rubber sleeve 7 is provided between the nozzle core 2 and the nozzle body 1.
[0019] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A three-multi-head hot nozzle structure, characterized in that: It includes a nozzle body (1) and a nozzle core (2). A glue inlet runner (3) penetrating to the top is arranged in the inner cavity of the nozzle body (1). The nozzle core (2) is arranged at the bottom of the inner cavity of the nozzle body (1). A nozzle core runner (4) communicated with the glue inlet runner (3) is arranged in the inner cavity of the nozzle core (2). Three nozzle tips (6) are arranged at the bottom end of the nozzle core (2). Glue outlet holes (5) communicated with the nozzle core runner (4) are formed on the side of each nozzle tip (6).
2. The three-multi-nozzle structure according to claim 1, wherein: The three nozzle tips (6) are evenly spaced on a circular track.
3. The three-multi-nozzle structure according to claim 1, characterized in that: A sealant sleeve (7) is arranged between the nozzle core (2) and the nozzle body (1).