CN219191113U

CN219191113U - Novel main nozzle for hot runner

Info

Publication number: CN219191113U
Application number: CN202320030721.1U
Authority: CN
Inventors: 吴平
Original assignee: Shenzhen Advance Technology Co ltd
Current assignee: Shenzhen Advance Technology Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-06-16
Anticipated expiration: 2033-01-06

Abstract

The utility model discloses a novel main nozzle for a hot runner, which comprises a pressing cap, a runner piston, a main nozzle body and a stainless steel pipe, wherein the stainless steel pipe is arranged at the top of the main nozzle body, and the runner piston is positioned at the top of the inside of the main nozzle body and is movably connected with the main nozzle body. The utility model, through setting up the structural component such as the pressure cap, runner piston, main nozzle body, stainless steel pipe and spring, the use of stainless steel pipe can protect the heat pipe, lengthen the life time of the heat pipe, guarantee the user's safety and not let the heat pipe expose outside influence esthetic, solve the main nozzle in the hot runner system and flow saliva, wire drawing, also solved the sizing material because of the cold charge that the temperature is insufficient, also reduced the unnecessary nursing of mould, possess and guarantee the main nozzle is not drawn wire, do not flow saliva advantage, the novel main nozzle of this a section of is used for hot runner, solve the existing problem that easily causes the main nozzle to feed the glue mouth nearby wire drawing, drooling.

Description

Novel main nozzle for hot runner

Technical Field

The utility model belongs to the technical field of main nozzles of hot runner systems, and particularly relates to a novel main nozzle for a hot runner.

Background

The hot runner system belongs to a fitting on a plastic mold, the quality and the appearance of a plastic mold production product can be greatly improved by the hot runner system, the loss of sizing materials is reduced by adopting the hot runner system, the product quality is provided, the hot runner system is the best choice, a main nozzle is a component part of the hot runner system, a glue inlet of the main nozzle is a gun nozzle of a butt-joint injection molding machine, the lower end of the main nozzle is connected with a hot-flow plate, the hot-runner system plays a role of connecting the gun nozzle, once injection is finished, the gun nozzle is separated from the main nozzle, so that wire drawing and casting near the glue inlet of the main nozzle are easily caused, and the problems in the prior art are that: the main nozzle is easy to draw wire and drool near the glue inlet, so that a novel main nozzle for a hot runner is provided to solve the problems.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides a novel main nozzle for a hot runner, which has the advantages of ensuring that the main nozzle is not drawn and is not salivated, and solves the problems of easy drawing and salivation near a glue inlet of the main nozzle in the prior art.

The utility model discloses a novel main nozzle for a hot runner, which comprises a pressing cap, a runner piston, a main nozzle body and a stainless steel pipe, wherein the stainless steel pipe is arranged at the top of the main nozzle body, the runner piston is positioned at the top of the inside of the main nozzle body and is movably connected with the main nozzle body, the pressing cap is sleeved at the top of the runner piston and is arranged at the top of the main nozzle body, a spring is sleeved on the surface of the runner piston, and the runner piston rebounds under the action of the spring so as to achieve the purpose of locking sizing materials.

As the preferable mode of the utility model, the surface of the main nozzle body is provided with the clamp spring groove, the clamp spring groove is internally provided with the clamp spring for clamping the stainless steel tube to avoid falling, and the clamp spring groove and the clamp spring are matched for use for clamping the stainless steel tube to avoid falling.

As the preferable mode of the utility model, the heating pipe and the temperature sensing wire are arranged in the main nozzle body, so that the glue stock is prevented from being cold in the main nozzle body, and the heating pipe is arranged in the main nozzle body for heating in order to prevent the glue stock from being cold in the main nozzle.

As the preferable mode of the utility model, the step of the main nozzle body, which is close to the bottom of the runner plate, is provided with a 0.05mm clearance gap for preventing glue leakage at the contact surface of the main nozzle body and the runner plate, and the glue leakage at the contact surface of the bottom of the main nozzle body and the top of the runner plate is prevented, so that the use is affected.

As the preferable mode of the utility model, four screw holes are formed in the bottom of the main nozzle body, the main nozzle body is fixed on the top of the runner plate through 4M 10 screws and the four screw holes, and the main nozzle body is fixed with the runner plate through threaded connection of the 4M 10 screws and the four screw holes.

As the preferable one of the utility model, the surface of the pressing cap is provided with the outer screw teeth, the inside of the main nozzle body is provided with the inner screw teeth and is matched with the outer screw teeth on the surface of the pressing cap, and the surface of the pressing cap is provided with the limit size of the outer hole so as to ensure the concentricity precision of the pressing cap and the main nozzle body, and the outer screw teeth on the surface of the pressing cap and the inner screw teeth in the main nozzle body are fixed through threaded connection.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model solves the problems of casting and wire drawing of the main nozzle in a hot runner system, simultaneously solves the problem of cold materials generated by insufficient temperature of sizing materials, reduces unnecessary nursing of a mould, and has the advantages of ensuring that the main nozzle does not draw wire and casting water.

2. The utility model sets up the pressing cap, the runner piston, the main nozzle body, the stainless steel tube and the spring, the top of the pressing cap is the end face of the nozzle of the injection nozzle, the bottom of the main nozzle body is close to the runner plate, the runner piston is firstly provided with the spring and then put into the main nozzle body together, then the pressing cap is provided, because the pressing cap and the main nozzle body have limit sizes, the axial concentricity precision can be ensured, the runner piston is ensured to move in a non-blocking manner, the main nozzle is in a glue feeding state, the runner piston moves downwards under the action of injection pressure, when the main nozzle is in a glue locking state, the product injection molding is finished, the injection pressure disappears, the runner piston moves upwards under the action of the spring, the inside of the main nozzle body is heated by the heating tube, the lead wire of the heating tube is led to the temperature control phase, the heating is heated, the glue is ensured not to flow cold material in the runner plate, the movement stroke of the engineering PA66 is from the nozzle, then enters the pressing cap, the runner piston moves downwards under the action of the pressure, the glue material flows from the gap of the pressing cap and the runner piston to the main nozzle body, the glue retaining pressure is retracted, the injection pressure is stopped, the injection pressure is released, and the injection pressure is retracted from the main nozzle piston is retracted, and the injection pressure is controlled, and the injection pressure is retracted to be moved upwards, and the injection pressure is controlled.

Drawings

FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present utility model;

FIG. 2 is an exploded perspective view of a primary nozzle provided in accordance with an embodiment of the present utility model;

FIG. 3 is a perspective view of an embodiment of the present utility model providing downward movement of a runner piston;

fig. 4 is a perspective view of an embodiment of the present utility model providing upward movement of a runner piston.

In the figure: 1. pressing the cap; 2. a runner piston; 3. a main nozzle body; 4. stainless steel tube; 5. a spring; 6. a clamp spring groove; 7. clamping springs; 8. a heating tube; 9. a temperature sensing line; 10. screw holes; 11. an outer thread; 12. an inner screw thread.

Detailed Description

For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.

The structure of the present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, the novel main nozzle for a hot runner provided by the embodiment of the utility model comprises a pressing cap 1, a runner piston 2, a main nozzle body 3, a stainless steel tube 4, a spring 5, a clamp spring groove 6, a clamp spring 7, a heating tube 8, a temperature sensing wire 9, a screw hole 10, an outer screw thread 11 and an inner screw thread 12, wherein the stainless steel tube 4 is arranged at the top of the main nozzle body 3, the runner piston 2 is positioned at the top of the main nozzle body 3 and is movably connected, the pressing cap 1 is sleeved at the top of the runner piston 2 and is arranged at the top of the main nozzle body 3, the surface of the runner piston 2 is sleeved with the spring 5, and the runner piston 2 rebounds under the action of the spring 5 so as to achieve the purpose of locking rubber materials.

Referring to fig. 2, a snap spring groove 6 is formed in the surface of the main nozzle body 3, and a snap spring 7 is arranged in the snap spring groove 6 and is used for clamping the stainless steel tube 4 to avoid falling.

The scheme is adopted: the clamp spring groove 6 and the clamp spring 7 are matched for clamping the stainless steel tube 4 so as not to fall off.

Referring to fig. 2, a heating tube 8 and a temperature sensing wire 9 are arranged in the main nozzle body 3, so that cold materials of sizing materials in the main nozzle body 3 are avoided.

The scheme is adopted: in order to prevent the glue material from being cold in the main nozzle, the main nozzle body 3 is provided with a heating pipe 8 for heating.

Referring to fig. 1, a step of the main nozzle body 3 near the bottom of the runner plate is provided with a 0.05mm clearance gap for preventing glue leakage at the contact surface of the main nozzle body 3 and the runner plate.

The scheme is adopted: in order to prevent glue leakage at the contact surface between the bottom of the main nozzle body 3 and the top of the runner plate, the use is affected.

Referring to fig. 1, four screw holes 10 are formed in the inside of the bottom of the main nozzle body 3, and the main nozzle body 3 is fixed to the top of the flow channel plate through 4M 10 screws and the four screw holes 10.

The scheme is adopted: the main nozzle body 3 is fixed with the runner plate through threaded connection of 4M 10 screws and four screw holes 10.

Referring to fig. 2, the surface of the press cap 1 is provided with external screw teeth 11, and the inside of the main nozzle body 3 is provided with internal screw teeth 12 and is matched with the external screw teeth 11 on the surface of the press cap 1.

The scheme is adopted: the surface of the pressing cap 1 is provided with an outer hole limiting size so as to ensure the concentric precision of the pressing cap 1 and the main nozzle body 3, and the outer screw threads 11 on the surface of the pressing cap 1 and the inner screw threads 12 inside the main nozzle body 3 are fixed through threaded connection.

The working principle of the utility model is as follows:

when the injection gun is used, the top of the pressing cap 1 is stuck with the end face of the gun nozzle of the injection gun, the bottom of the main gun nozzle body 3 is close to the runner plate, the runner piston 2 is firstly provided with the spring 5, then the main gun nozzle body 3 is placed together, the pressing cap 1 is further provided, because the pressing cap 1 and the main gun nozzle body 3 are both provided with limiting dimensions, the axial concentricity precision can be ensured, the runner piston 2 is ensured to move in the inside without blocking, the main gun nozzle is in a glue feeding state, the runner piston 2 is under the action of injection pressure, the runner piston 2 moves downwards, when the main gun nozzle is in a glue locking state, the product injection is finished, the injection pressure disappears, the runner piston 2 moves upwards under the action of the spring 5, the inside the main gun nozzle body 3 is heated by the heating tube 8, the lead wire of the heating tube 8 is led to the temperature control phase, the glue material is heated to ensure that cold material can not flow into the runner plate, the movement stroke of the engineering glue PA66 is firstly discharged from the gun nozzle, then enters the pressing cap 1, the runner piston 2 moves downwards under the action of the pressure, the glue material flows from the runner cap 1 and the main gun nozzle body, the glue material flows into the gap 3, the glue gun nozzle 2 moves upwards, the other pressure is prevented from flowing back, the injection rod is blocked, the injection rod is retracted, and the injection system is retracted, after the injection is retracted, the injection pressure is stopped, and the injection pressure is completely returns to the main gun nozzle body, and the injection rod is completely, and after the injection rod is retracted, the injection pressure is completely is kept.

To sum up: this a novel main mouth that penetrates for hot runner through setting up to press cap 1, runner piston 2, main mouth body 3, stainless steel pipe 4, spring 5, jump ring groove 6, jump ring 7, heating tube 8, temperature sensing line 9, screw hole 10, outer thread 11 and interior thread 12's cooperation use, has solved current problem that causes the main mouth to penetrate near the mouth of glue of chewing, drooling easily.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel main mouth that penetrates for hot runner, is including pressing cap (1), runner piston (2), main mouth body (3) and stainless steel pipe (4), stainless steel pipe (4) are installed in the main top of penetrating mouth body (3), runner piston (2) are located the main top and swing joint that are penetrated mouth body (3) inside, press cap (1) cover to locate the top of runner piston (2) and install in the main top of penetrating mouth body (3), its characterized in that: the surface of the runner piston (2) is sleeved with a spring (5), and the runner piston (2) rebounds under the action of the spring (5) so as to achieve the purpose of locking sizing materials.

2. A novel primary nozzle for a hot runner as claimed in claim 1, wherein: the main nozzle is characterized in that a clamp spring groove (6) is formed in the surface of the main nozzle body (3), and a clamp spring (7) is arranged in the clamp spring groove (6) and used for clamping the stainless steel tube (4) to avoid falling.

3. A novel primary nozzle for a hot runner as claimed in claim 1, wherein: the main nozzle body (3) is internally provided with a heating pipe (8) and a temperature sensing wire (9) to avoid cold materials of sizing materials in the main nozzle body (3).

4. A novel primary nozzle for a hot runner as claimed in claim 1, wherein: the step of the main nozzle body (3) close to the bottom of the runner plate is provided with a 0.05mm clearance gap for preventing glue leakage on the contact surface of the main nozzle body (3) and the runner plate.

5. A novel primary nozzle for a hot runner as claimed in claim 1, wherein: four screw holes (10) are formed in the bottom of the main nozzle body (3), and the main nozzle body (3) is fixed to the top of the runner plate through 4M 10 screws and four screw holes (10).

6. A novel primary nozzle for a hot runner as claimed in claim 1, wherein: the surface of the pressing cap (1) is provided with outer screw teeth (11), and the inner part of the main nozzle body (3) is provided with inner screw teeth (12) and is matched with the outer screw teeth (11) on the surface of the pressing cap (1).