Hot runner nozzle capable of feeding glue on inclined plane

Abstract

The utility model discloses a beveled glue inlet hot runner nozzle which comprises an upper nozzle body, a lower nozzle body and a hanging table for connecting the upper nozzle body and the lower nozzle body, the upper nozzle body comprises a feeding nozzle and a connecting part, the diameter of the connecting part is larger than that of the feeding nozzle, the connecting part is arranged on the bottom side of the feeding nozzle, and the upper end face of the connecting part is horizontally arranged. An included angle is formed between the lower end face and the upper end face of the connecting part, an upper hot runner is arranged in the upper nozzle body, a lower hot runner is arranged in the lower nozzle body, the upper hot runner is communicated with the lower hot runner, and a nozzle core is arranged at the bottom end of the lower nozzle body and connected with the lower nozzle body through a sprue. The glue inlet nozzle has the advantages that the glue inlet nozzle can be adjusted according to the angle of the inclined face where the glue inlet points are located and the radian of the curved face, different nozzle upper bodies are used for adapting to the inclined face glue inlet points or the glue inlet points on the curved face, inclined glue inlet can be carried out, and the technical problem of inclined face glue inlet or curved face glue inlet is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chopsticks, in particular to an inclined glue-feeding hot runner nozzle. Background Art

[0002] Hot runner is used in injection molds. It is a method of heat insulation or heating for the pouring system of the injection mold to keep the plastic melt in a molten state at all times, thereby avoiding the generation of agglomerates in the pouring system. The application of hot runner technology can save raw materials and reduce costs; shorten the molding cycle, improve machine efficiency; and improve the surface quality and mechanical properties of the product. The hot runner system is designed and processed according to different glue feeding methods. However, when the glue feed port is on an inclined or curved surface, a conventional hot runner system must be used to make a platform on the product to assist in glue feeding. The use of an auxiliary platform will increase the structure during glue feeding, and installation and disassembly will increase the workload of glue feeding, which will lead to low glue feeding efficiency and increase production costs.

[0003] Therefore, how to achieve glue injection on an inclined surface or curved surface has become a technical problem that technicians in this field need to solve urgently. Utility Model Content

[0004] The utility model aims to provide a hot runner nozzle with an inclined surface for feeding glue, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sloped glue feeding hot runner nozzle, comprising a nozzle upper body, a nozzle lower body and a hanging platform for connecting the nozzle upper body and the lower body, the nozzle upper body comprising a feed nozzle and a connecting part, the diameter of the connecting part is larger than the diameter of the feed nozzle, the connecting part is arranged on the bottom side of the feed nozzle, the upper end face of the connecting part is arranged horizontally, the lower end face of the connecting part is arranged at an angle to the upper end face, an upper hot runner is arranged in the nozzle upper body, a lower hot runner is arranged in the nozzle lower body, the upper hot runner is connected to the lower hot runner, a nozzle core is arranged at the bottom end of the nozzle lower body, and the nozzle core is connected to the nozzle lower body through a gate.

[0006] Preferably, an annular protrusion is provided on the outer edge of the upper end of the lower body of the nozzle, and a step matching the annular protrusion is provided on the upper end of the inner hole of the hanging platform.

[0007] Preferably, a positioning pin and a screw are provided at the connection between the upper end surface of the hanging platform and the connecting portion, and the positioning pin and the screw are radially arranged on the upper end surface of the hanging platform.

[0008] Preferably, a sealing ring is provided between the nozzle upper body and the nozzle lower body.

[0009] Preferably, an upper heater is provided on the outer wall of the feed nozzle, and a lower heater is provided on the outer wall of the lower body of the nozzle, and both the upper heater and the lower heater are copper sleeve heaters.

[0010] Preferably, the nozzle upper body and the nozzle lower body are both made of S136 material.

[0011] Preferably, the angle between the lower end surface of the connecting portion and the upper end surface is adjustable.

[0012] Preferably, the tip of the nozzle core is made of cemented carbide material or high thermal conductivity beryllium copper material, and the gate is made of titanium alloy material.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can be adjusted according to the angle of the inclined surface where the glue feeding point is located and the curvature of the curved surface, and different nozzle upper bodies can be used to adapt to the glue feeding points on the inclined surface or the glue feeding points on the curved surface, and can perform inclined glue feeding, effectively solving the technical problems of glue feeding on the inclined surface or the curved surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a cross-sectional structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the main body structure of the nozzle of the utility model.

[0016] In the figure: 1. nozzle upper body; 11. feed nozzle; 12. connection part; 13. upper hot runner; 2. nozzle core; 3. gate; 4. positioning pin; 5. screw; 6. hanging platform; 61. step; 7. sealing ring; 8. upper heater; 9. nozzle lower body; 91. lower hot runner; 92. annular protrusion; 10. lower heater. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2The utility model provides a technical solution: a sloped glue feeding hot runner nozzle, comprising a nozzle upper body 1, a nozzle lower body 9 and a hanging platform 6 for connecting the nozzle upper body and the lower body, the nozzle upper body 1 comprising a feed nozzle 11 and a connecting portion 12, the diameter of the connecting portion 12 is larger than the diameter of the feed nozzle 11, the connecting portion 12 is arranged on the bottom side of the feed nozzle 11, the upper end face A of the connecting portion is arranged horizontally, the lower end face B of the connecting portion 12 is arranged at an angle α to the upper end face A, an upper hot runner 13 is arranged in the nozzle upper body 1, a lower hot runner 91 is arranged in the nozzle lower body 9, the upper hot runner 13 is communicated with the lower hot runner 91, a nozzle core 2 is arranged at the bottom end of the nozzle lower body 9, and the nozzle core 2 is connected to the nozzle lower body 9 through a gate 3.

[0019] Specifically, an annular protrusion 92 is provided on the outer edge of the upper end of the nozzle lower body 9 , and a step 61 matching with the annular protrusion 92 is provided on the upper end of the inner hole of the hanging platform 6 .

[0020] Specifically, a positioning pin 4 and a screw 5 are provided at the connection between the upper end surface of the hanging platform 6 and the connecting portion 12 , and the positioning pin 4 and the screw 5 are radially arranged on the upper end surface of the hanging platform 6 .

[0021] Specifically, a sealing ring 7 is provided between the nozzle upper body 1 and the nozzle lower body 9 , and both the nozzle upper body 1 and the nozzle lower body 9 are made of materials with good thermal conductivity and corrosion resistance.

[0022] Specifically, an upper heater 8 is provided on the outer wall of the feed nozzle 11, and a lower heater 10 is provided on the outer wall of the nozzle lower body 9. Both the upper heater 8 and the lower heater 10 are copper sleeve heaters, which are heated by a German HOTSET heater and have their own temperature sensing wire, have uniform heat generation, strong reliability, and the lead wire is resistant to high temperatures above 400°C.

[0023] Specifically, the nozzle upper body 1 and the nozzle lower body 9 are both made of S136 material.

[0024] Specifically, the angle α between the lower end surface B of the connecting portion 12 and the upper end surface A can be adjusted. During injection molding, connecting portions 12 with multiple angles are provided. According to the bevel angle or curved curvature of the actual injection molding object, the nozzle upper body 1 with the connecting portion 12 with the corresponding angle is selected, and then the nozzle upper body 1 is connected to the nozzle lower body 9.

[0025] Specifically, the tip of the nozzle core 2 is made of cemented carbide material or high thermal conductivity beryllium copper material, and the gate 3 is made of titanium alloy material, which can prevent heat loss and perform a sealing effect.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot runner nozzle with inclined surface injection, characterized in that: It includes a nozzle upper body, a nozzle lower body and a hanging platform for connecting the upper body and the lower body of the nozzle, the nozzle upper body includes a feed nozzle and a connecting part, the diameter of the connecting part is larger than the diameter of the feed nozzle, the connecting part is arranged on the bottom side of the feed nozzle, the upper end face of the connecting part is arranged horizontally, the lower end face of the connecting part is arranged at an angle to the upper end face, an upper hot runner is arranged in the nozzle upper body, a lower hot runner is arranged in the nozzle lower body, the upper hot runner is communicated with the lower hot runner, a nozzle core is arranged at the bottom end of the nozzle lower body, and the nozzle core is connected to the nozzle lower body through a gate.

2. The hot runner nozzle with inclined surface injection according to claim 1, characterized in that: An annular protrusion is arranged on the outer edge of the upper end of the lower body of the nozzle, and a step matching with the annular protrusion is arranged on the upper end of the inner hole of the hanging platform.

3. The hot runner nozzle with inclined surface injection according to claim 2, characterized in that: Positioning pins and screws are provided at the connection between the upper end surface of the hanging platform and the connecting portion, and the positioning pins and screws are radially arranged on the upper end surface of the hanging platform.

4. The hot runner nozzle with inclined surface injection according to claim 3, characterized in that: A sealing ring is arranged between the nozzle upper body and the nozzle lower body.

5. The hot runner nozzle with inclined surface injection according to claim 4, characterized in that: An upper heater is arranged on the outer wall of the feed nozzle, and a lower heater is arranged on the outer wall of the lower body of the nozzle. Both the upper heater and the lower heater are copper sleeve heaters.

6. The hot runner nozzle with inclined surface injection according to claim 5, characterized in that: The nozzle upper body and the nozzle lower body are both made of S136 material.

7. The hot runner nozzle with inclined surface injection according to claim 6, characterized in that: The angle between the lower end surface of the connecting portion and the upper end surface can be adjusted.

8. The hot runner nozzle with inclined surface injection according to claim 7, characterized in that: The tip of the nozzle core is made of cemented carbide material or high thermal conductivity beryllium copper material, and the gate is made of titanium alloy material.

Images