CN217123841U

CN217123841U - Novel bimetal nozzle head structure

Info

Publication number: CN217123841U
Application number: CN202220518576.7U
Authority: CN
Inventors: 杨威
Original assignee: Ningbo Weineng Precision Mould Co ltd
Current assignee: Ningbo Weineng Precision Mould Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-08-05
Anticipated expiration: 2032-03-09

Abstract

The utility model relates to a bimetal nozzle technical field just discloses a novel bimetal nozzle structure, the outer lane of connecting on base and the base, install the nozzle on the outer lane, install the heater strip on the outer lane, install the partition plate in the inner wall of outer lane, the partition plate is divided into two blocks of regions of first cavity and second cavity with cutting apart in the inner wall of outer lane, still be provided with the through-hole that is used for the circulation air on the partition plate, the inside sliding connection of first cavity has the piston board, the piston board is used for the extrusion air to flow to second cavity department from first cavity department. The utility model discloses an air of another through-hole department of negative pressure extraction for another through-hole absorbs the lower extreme of air to piston plate from second cavity department, and then realizes the inside air cycle of first cavity and second cavity, thereby realizes under the condition that does not increase the heater strip cost, and whole high temperature heating can be realized to the outer lane and moulds plastics.

Description

Novel bimetal nozzle head structure

Technical Field

The utility model relates to a bimetal nozzle technical field specifically is a novel bimetal nozzle structure.

Background

With the rapid development of social economy, injection molding is a method of stirring a completely molten plastic material by a screw at a certain temperature, injecting the plastic material into an injection mold in a high-pressure manner by a nozzle, and cooling and solidifying the plastic material to obtain a molded product. The processing method has the advantages of high production speed, high efficiency and the like, thereby being widely used. The nozzle is one of the most important parts during the use of the injection mold.

However, the resistance wire is generally added at the nozzle head in the existing bimetal nozzle head, the nozzle head is heated through the resistance wire, the injection molding liquid passing through the nozzle head reaches a certain injection molding temperature, but because the injection molding liquid flows too fast, and then the heating wire is the heating complete injection molding liquid, the injection molding liquid is discharged through the nozzle head, the injection molding effect is poor, and because the size of the mold is different, and then the length of the bimetal nozzle head is different, when the bimetal nozzle head is longer, the injection molding liquid flows in the bimetal nozzle head, the cold and heat exchange is possible, and further the heating wire is caused to heat the injection molding liquid to a proper temperature.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel bimetal mouth head structure, possess the effectual and with low costs beneficial effect of heating, it generally all adds the resistance wire in mouth head department to have solved the current bimetal mouth head of mentioning among the above-mentioned background art, heat the mouth head through the resistance wire, let the liquid of moulding plastics through the mouth head reach certain injection temperature, but because the liquid of moulding plastics flows at the excessive speed, and then lead to the heater strip to be the liquid of moulding plastics completely of heating, the liquid of moulding plastics has just discharged through the mouth head, it is poor to all mould plastics the effect, and because the difference of mould size, and then the length that leads to bimetal mouth head also is different, when bimetal mouth head is longer, when the liquid of moulding plastics flows in bimetal mouth head, can cold and hot exchange, further lead to the heater strip can't heat the problem of suitable temperature with the liquid of moulding plastics.

The utility model provides a following technical scheme: a novel bimetal nozzle head structure comprises a base and an outer ring connected to the base, wherein a nozzle is arranged on the outer ring, a heating wire is arranged on the outer ring, a partition plate is arranged in the inner wall of the outer ring, the partition plate divides the inner wall of the outer ring into a first cavity area and a second cavity area, and a through hole for air circulation is formed in the partition plate;

a piston plate is slidably coupled within the first cavity for compressing the air flow from the first cavity to the second cavity.

As an alternative of the novel bimetal tip structure of the utility model, wherein: the piston plate is provided with air holes, and one-way air exchange components are installed inside the air holes.

As an alternative of the novel bimetal tip structure of the utility model, wherein: the one-way ventilation component comprises a circular plate which is connected inside the air holes in a sliding mode, and a convex block is installed on the circular plate.

As an alternative of the novel bimetal tip structure of the utility model, wherein: the inner part of the outer ring is further connected with a push block in a sliding mode, the lower end of the piston plate is further provided with a trapezoidal block, and the push block is used for abutting against the trapezoidal block.

As an alternative of the novel bimetal tip structure of the utility model, wherein: and a spring is further installed inside the outer ring and connected with the piston plate.

As an alternative of the novel bimetal tip structure of the utility model, wherein: the push block is further provided with an inclined plane, and the trapezoidal block is used for abutting against the inclined plane.

The utility model discloses possess following beneficial effect:

1. this novel bimetal nozzle structure extracts the air of another through-hole department through the negative pressure for another through-hole absorbs the lower extreme of air to piston plate from second cavity department, and then realizes the inside air cycle of first cavity and second cavity, thereby realizes under the condition that does not increase the heater strip cost, and whole high temperature heating liquid of moulding plastics can be realized to the outer lane.

2. This novel bimetal nozzle structure, the air extrusion plectane through piston plate lower extreme upwards slides for the air promotes plectane and lug and contradicts in the inside of piston plate, and the plectane can be passed to the air, when this realizes that the piston plate slides down, can not extract the air of release again and return, thereby realizes that the piston plate can promote the first cavity of air cycle and second cavity many times, lets the outer lane keep high temperature, heats the liquid of moulding plastics.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the partition plate and the piston plate of the present invention.

Fig. 3 is a cross-sectional view of the outer ring of the present invention.

Fig. 4 is a cross-sectional view of the piston plate of the present invention.

In the figure: 1. an outer ring; 2. a base; 3. a nozzle; 4. a first cavity; 5. a second cavity; 6. dividing the plate; 7. a through hole; 8. heating wires; 9. a piston plate; 10. air holes are formed; 11. a spring; 12. a push block; 13. a trapezoidal block; 14. a circular plate; 15. a bump; 16. a bevel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-2, a novel bimetal nozzle structure comprises a base 2 and an outer ring 1 connected to the base 2, wherein a nozzle 3 is installed on the outer ring 1, a heating wire 8 is installed on the outer ring 1, a partition plate 6 is installed in the inner wall of the outer ring 1, the partition plate 6 divides the inner wall of the outer ring 1 into two areas, namely a first cavity 4 and a second cavity 5, and a through hole 7 for circulating air is further formed in the partition plate 6;

a piston plate 9 is slidably connected inside the first cavity 4, the piston plate 9 is used for extruding the air flow to flow from the first cavity 4 to the second cavity 5, and a spring 11 is further installed inside the outer ring 1, and the spring 11 is connected with the piston plate 9.

The existing bimetallic nozzle is generally characterized in that a resistance wire is added at the nozzle head, the nozzle head is heated through the resistance wire, injection liquid passing through the nozzle head reaches a certain injection temperature, but the injection liquid flows too fast, so that the heating wire 8 is heated complete injection liquid, the injection liquid is discharged through the nozzle head, the injection effect is poor, the length of the bimetallic nozzle head is different due to different sizes of molds, when the bimetallic nozzle head is long, the injection liquid flows in the bimetallic nozzle head and can be exchanged with cold and heat, further, the heating wire 8 cannot heat the injection liquid to a proper temperature, therefore, the device is provided with two cavities, namely a first cavity 4 and a second cavity 5, in the inner part of an outer ring 1, and air in the first cavity 4 and the second cavity 5 is heated through the heating wire 8 in order to ensure that the injection liquid can reach a proper injection temperature after passing through the bimetallic nozzle, then stir through piston plate 9, let the inside hot-air circulation flow of first cavity 4 and second cavity 5 heat outer lane 1 to realize under the condition that does not increase heater strip 8 cost, outer lane 1 can realize whole high temperature heating injection molding liquid.

And (3) cyclic heating: specifically, as shown in fig. 2, the interior of the first cavity 4 and the interior of the second cavity 5 are heated by the heating wire 8, and then the piston plate 9 slides upwards, so that the piston plate 9 pushes the air at the upper end upwards to the through hole 7, and further the piston plate 9 pushes the hot air to the second cavity 5, and when the piston plate 9 slides upwards, the lower end of the piston plate 9 generates negative pressure, and the air at the other through hole 7 is extracted by the negative pressure, so that the air is absorbed from the second cavity 5 to the lower end of the piston plate 9 by the other through hole 7, and further the air circulation inside the first cavity 4 and the second cavity 5 is realized, and thus the outer ring 1 can realize integral high-temperature heating of the injection molding liquid without increasing the cost of the heating wire 8.

Example 2

The present embodiment is an improvement made on the basis of embodiment 1, specifically, please refer to fig. 1-4, a piston plate 9 is provided with an air vent 10, and a one-way ventilation component is installed inside the air vent 10;

the one-way ventilation component comprises a circular plate 14 connected to the inside of the ventilation hole 10 in a sliding way, and a lug 15 is arranged on the circular plate 14.

And (3) increasing circulating force: according to fig. 3 and 4, a circular plate 14 is slidably connected to the ventilation holes 10, when the piston plate 9 slides upwards, air at the upper end of the piston plate 9 presses the circular plate 14, so that the circular plate 14 slides downwards and seals the ventilation holes 10, thereby making the piston plate 9 a complete sealing body, the piston plate 9 in example 1 can press air at the upper end upwards to the through hole 7 by sliding the piston plate 9 upwards, negative pressure is generated at the lower end of the piston plate 9, air at the other through hole 7 is extracted by the negative pressure, thereby realizing air circulation inside the first cavity 4 and the second cavity 5, and then when the piston plate 9 slides downwards, the circular plate 14 is pressed upwards by air at the lower end of the piston plate 9, so that the air pushes the circular plate 14 and the bump 15 to abut against the inside of the piston plate 9, and the air passes through the circular plate 14, thereby realizing downward sliding of the piston plate 9, the pushed air can not be extracted back any more, so that the piston plate 9 can push the air to circulate the first cavity 4 and the second cavity 5 for many times, the outer ring 1 is kept at a high temperature, and the injection molding liquid is heated.

Example 3

In this embodiment, an improvement is made on the basis of embodiment 2, specifically, referring to fig. 1 to 4, a push block 12 is further slidably connected inside the outer ring 1, a trapezoidal block 13 is further installed at the lower end of the piston plate 9, the push block 12 is used for abutting against the trapezoidal block 13, an inclined surface 16 is further arranged on the push block 12, and the trapezoidal block 13 is used for abutting against the inclined surface 16.

Transmission: according to fig. 3, a pushing block 12 is further connected to the inner portion of the outer ring 1 in a sliding manner, when the injection liquid passes through the pushing block 12, the injection liquid can extrude the pushing block 12 to slide to the left side, and then the pushing block 12 abuts against the trapezoidal block 13, the trapezoidal block 13 extrudes the trapezoidal block 13 to slide upwards, the trapezoidal block 13 pushes the piston plate 9 to slide upwards, the piston plate 9 pushes the first air circulation cavity 4 and the second air circulation cavity 5, when the piston plate 9 slides upwards, the piston plate 9 can compress the spring 11, when the injection pressure in the outer ring 1 is small, the spring 11 can push the piston plate 9 to slide downwards, and the reciprocating manner is repeated, so that the piston plate 9 is automatically driven to slide upwards and downwards.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a novel bimetal nozzle structure, includes outer lane (1) of connecting on base (2) and base (2), install nozzle (3) on outer lane (1), its characterized in that: the heating wire (8) is installed on the outer ring (1), the partition plate (6) is installed in the inner wall of the outer ring (1), the partition plate (6) divides the inner wall of the outer ring (1) into a first cavity (4) and a second cavity (5), and the partition plate (6) is further provided with a through hole (7) for air circulation;

a piston plate (9) is connected to the inside of the first cavity (4) in a sliding manner, and the piston plate (9) is used for extruding the air flow from the first cavity (4) to the second cavity (5).

2. A novel bi-metallic nozzle tip structure as claimed in claim 1, wherein: the piston plate (9) is provided with air holes (10), and a one-way ventilation component is installed inside the air holes (10).

3. A novel bi-metallic nozzle tip structure as claimed in claim 2, wherein: the one-way ventilation component comprises a circular plate (14) which is connected inside the ventilation hole (10) in a sliding mode, and a convex block (15) is installed on the circular plate (14).

4. A novel bi-metallic nozzle tip structure as claimed in claim 1, wherein: the inner part of the outer ring (1) is further connected with a push block (12) in a sliding mode, a trapezoidal block (13) is further mounted at the lower end of the piston plate (9), and the push block (12) is used for abutting against the trapezoidal block (13).

5. A novel bi-metallic nozzle tip structure as claimed in claim 1, wherein: and a spring (11) is further installed inside the outer ring (1), and the spring (11) is connected with the piston plate (9).

6. The novel bi-metallic nozzle tip structure of claim 4, wherein: the push block (12) is further provided with an inclined surface (16), and the trapezoidal block (13) is used for abutting against the inclined surface (16).