Composite nozzle structure
Through the composite nozzle structure, the head and tail of nozzles of different diameters and the internal runner design are adopted, combined with the threaded connection of the heating sleeve and flange, the problem of nozzle mismatch in the hot runner system is solved, achieving a more compact rubber feeding point and better cooling effect.
Patent Information
- Application Number
- CN202422053581.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the existing hot runner system, the problem of the larger PITCH splitter not matching the shorter nozzle leads to a compact glue injection position and poor cooling effect.
The composite nozzle structure is adopted, with different diameters of the head and tail of the nozzle and different internal runners. Combined with different heating sleeve designs, including the rear end, adjustment and intermediate heating sleeves, and the heating flange is threaded to solve the nozzle length limitation and cooling water circuit problems.
It achieves a more compact glue feed point and a better cooling waterway design, improving the flexibility and cooling effect of the hot runner system.
Smart Images
Figure CN223236855U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hot runner systems, in particular to a composite nozzle structure. Background Art
[0002] The integrally mounted hot runner system uses a wire rack to connect the hot runner system with the electrical system, control system, and cooling system. The power and control cables in the electrical system, the piping in the control system, and the piping in the cooling system are connected to the corresponding systems via the wire rack.
[0003] With existing technology, cold spots often occur at the connection between the manifold and the nozzle, affecting on-site mold trials and mass production. There are also problems with the larger PITCH manifold not matching the shorter nozzle, and problems that cannot be solved when the product is large but the glue inlet position is very compact.
[0004] Therefore, it is necessary to design a composite nozzle structure to solve the above problems. Utility Model Content
[0005] The purpose of the present utility model is to provide a composite nozzle structure to overcome the above-mentioned deficiencies in the current prior art.
[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0007] A composite nozzle structure, which includes a nozzle body, a cooperating diverter plate and a flow channel within the nozzle body, characterized in that: the nozzle body includes a nozzle head, a nozzle tail and a nozzle transition portion connecting the nozzle head and the nozzle tail, the diameters of the nozzle head and the nozzle tail are different, and the internal flow channel diameters are also different, the diameter of the nozzle head is larger than the diameter of the nozzle tail, a rear end heating sleeve, an adjustment sleeve, and an intermediate heating sleeve are sequentially sleeved on the outside of the nozzle head from top to bottom, a front end heating sleeve is sleeved on the outside of the nozzle tail, a circle of external threads is provided on the outside of the top of the nozzle head, and is connected to a heating flange or to the diverter plate through a threaded connection.
[0008] Preferably, the flow channel inside the nozzle transition portion is conical, connecting the nozzle head and the nozzle tail.
[0009] Preferably, a retaining spring is provided on the bottom outside the tail of the nozzle, and the top of the retaining spring supports the front heating sleeve.
[0010] The beneficial effects of the utility model are as follows: the technical solution adopts a composite nozzle structure, which is composed of outer ends and internal flow channels of different diameters, so that the product has a more compact glue feeding point and a better cooling water path. At the same time, the heated flange threaded nozzle solves the problem of mismatch between the larger PITCH manifold and the shorter nozzle. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a structural diagram of a composite nozzle structure of the utility model;
[0012] Figure 2 This is a cross-sectional view of a composite nozzle structure of the utility model;
[0013] Figure 3 This is a partial schematic diagram of a composite nozzle structure of the utility model;
[0014] In the figure: 1. Nozzle body; 2. Flow channel; 11. Nozzle head; 12. Nozzle tail; 13. Nozzle transition part; 3. Rear heating sleeve; 4. Adjustment sleeve; 5. Middle heating sleeve; 6. Front heating sleeve; 7. Retaining spring; 8. Heating flange. DETAILED DESCRIPTION
[0015] 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.
[0016] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0017] Reference Figures 1 to 3 A composite nozzle structure includes a nozzle body 1 and a flow channel 2 within the nozzle body. The nozzle body includes a nozzle head 11, a nozzle tail 12, and a nozzle transition portion 13 connecting the nozzle head and the nozzle tail. The nozzle head and the nozzle tail have different diameters and different flow channel diameters. The diameter of the nozzle head is larger than the diameter of the nozzle tail.
[0018] The flow channel inside the transition portion of the nozzle is conical, connecting the nozzle head and the nozzle tail;
[0019] The rear end heating sleeve 3, the adjustment sleeve 4, and the middle heating sleeve 5 are sequentially sleeved on the outside of the nozzle head 11 from top to bottom;
[0020] The tail of the nozzle is covered with a front heating sleeve 6; and in order to facilitate the installation of the entire nozzle body and limit the front heating sleeve, a retaining spring 7 is provided on the bottom of the nozzle tail, and the top of the retaining spring supports the front heating sleeve.
[0021] The biggest feature of the composite nozzle is that the front and rear ends of the nozzle body have different outer diameters, different internal flow channel diameters and different sizes of heating sleeves, which can make the product have a more compact glue feeding point and better cooling water path;
[0022] The top outer side of the nozzle head is provided with a circle of external threads 81, which are threadedly connected to a heated flange 8. The heated flange threaded nozzle can position the drop point of the manifold without being restricted by the nozzle length, making the hot runner system more flexible. The heated flange and the threaded nozzle are connected together by threads to form a flange nozzle, or directly connected to the manifold.
[0023] The benefits of the present invention are that the technical solution adopts a composite nozzle structure, which is composed of outer ends and internal flow channels of different diameters, so that the product has a more compact glue feeding point and a better cooling water path. At the same time, the heated flange threaded nozzle solves the problem of mismatch between the larger PITCH manifold and the shorter nozzle.
[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A composite nozzle structure comprising a nozzle body, a manifold plate mounted thereon, and a flow channel within the nozzle body, characterized in that: The nozzle body includes a nozzle head, a nozzle tail and a nozzle transition portion connecting the nozzle head and the nozzle tail. The diameters of the nozzle head and the nozzle tail are different, and the internal flow channel diameters are also different. The diameter of the nozzle head is larger than the diameter of the nozzle tail. A rear end heating sleeve, an adjustment sleeve, and an intermediate heating sleeve are sequentially sleeved on the outside of the nozzle head from top to bottom. A front end heating sleeve is sleeved on the outside of the nozzle tail. A circle of external threads is provided on the outside of the top of the nozzle head, and is connected to a heating flange or a diverter plate through a threaded connection.
2. A composite nozzle structure according to claim 1, characterized in that: The flow channel inside the nozzle transition part is in a cone shape, connecting the nozzle head and the nozzle tail.
3. A composite nozzle structure according to claim 1, characterized in that: A retaining spring is sleeved on the bottom outside the tail of the nozzle, and the top of the retaining spring supports the front heating sleeve.