CN216182269U

CN216182269U - Injection molding nozzle with stable structure

Info

Publication number: CN216182269U
Application number: CN202122655021.5U
Authority: CN
Inventors: 黄进忠; 黄进俭
Original assignee: Quanzhou Three Sichuan Machinery Co ltd
Current assignee: Quanzhou Three Sichuan Machinery Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-04-05
Anticipated expiration: 2031-11-02

Abstract

The utility model provides an injection molding nozzle with a stable structure, which comprises a material barrel, an injection head, a material cavity formed by the material barrel and the injection head together, a screw rod reciprocating in the material cavity, 12 connecting screws for fixedly connecting the injection head and the material barrel, and a nozzle device fixed on the injection head; the nozzle device comprises a nozzle core connected with the injection head, a guide hole is formed in the center of the nozzle core and connected with the material cavity, and the material enters the guide hole from the material cavity through the extrusion of the screw rod.

Description

Injection molding nozzle with stable structure

Technical Field

The utility model relates to the field of injection molding machinery, in particular to an injection molding nozzle with a stable structure.

Background

An injection molding machine, also known as an injection molding machine or an injection molding machine, is a main molding device for molding thermoplastic plastics or thermosetting materials into plastic products of various shapes by using a plastic molding mold. The injection molding machine is mainly divided into a vertical injection molding machine and a horizontal injection molding machine, and the injection molding machine generally comprises an injection system, a mold closing system, a hydraulic transmission system, an electrical control system, a lubricating system, a heating and cooling system, a safety monitoring system and the like. The injection head is known as an important component of an injection machine, and generally includes an injection gun passage, a feed screw provided in the injection gun passage, an injection passage parallel to the injection gun passage, a plug provided in the injection passage, a driving device for driving the plug to advance and retreat, a nozzle connected to an outlet of the injection passage, and a connection passage connected between the injection gun body and the injection passage. Traditional shooting mouth that moulds plastics structure is complicated, and is with high costs, remains the clout easily, is difficult to the clearance, and the structure is insecure, and the connecting channel part at center produces the skew relatively easily around the spare part after the permanent operation, and central connecting channel is thin overlength and the bend is many moreover, greatly increased injection resistance, the energy consumption is big, and the raw materials easily heaies up in addition, influences the raw materials performance even, seriously influences the injection efficiency and the quality of injection molding machine.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides an injection molding nozzle with a stable structure, which adopts the following technical scheme:

the utility model provides an injection molding nozzle with a stable structure, which comprises a material barrel, an injection head, a material cavity formed by the material barrel and the injection head together, a screw rod reciprocating in the material cavity, a plurality of connecting screws for fixedly connecting the injection head and the material barrel, and a nozzle device fixed on the injection head; the nozzle device comprises a nozzle core connected with the injection head, a material guide hole is formed in the center of the nozzle core and connected with the material cavity, and therefore materials are extruded by the screw rod and enter the material guide hole from the material cavity.

Furthermore, the material cavity is in a horn shape which is gradually reduced along the axial direction, and the inclination of the material cavity is consistent with that of a material inlet of the material guide hole.

Furthermore, the nozzle core is sleeved with a high-temperature sealing ring and a nozzle base, the area of the nozzle base close to the nozzle core is in contact connection with the high-temperature sealing ring, and the area far away from the nozzle core is fixedly connected with the injection head through a plurality of screws.

Furthermore, the nozzle core is sleeved with a limiting block, one end of the limiting block is connected with the nozzle base, and the other end of the limiting block is connected with the nozzle core support lug; the limiting block is sleeved with a return spring, one end of the return spring is connected with the nozzle base, and the other end of the return spring is connected with the nozzle core support lug.

Furthermore, a plurality of through holes surrounding the material guide hole are uniformly distributed at one end of the material guide hole far away from the injection head along the axis direction.

Furthermore, the nozzle core support lug is connected with the reset pressing ring to form the nozzle, the nozzle is wrapped by the sealing check ring and the high-temperature sealing ring, and the sealing check ring and the high-temperature sealing ring are connected with each other and sleeved on the nozzle core.

Furthermore, the nozzle core is provided with a protrusion, and the protrusion is embedded into the limiting block and abuts against the nozzle core support lug.

Furthermore, the through holes are gradually inclined from the periphery of the nozzle core to the material guide hole from the direction far away from the injection head to the direction close to the injection head.

Furthermore, an opening of the material guide hole at one end of the nozzle is inclined from the peripheral surface to the center of the material guide hole to form a funnel-shaped discharge hole.

Advantageous effects

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

the utility model relates to an injection molding nozzle with a stable structure, which has the advantages of stable and firm structure and high injection efficiency, and the opening of a material guide hole of the injection molding nozzle is consistent with the inclination of a material cavity, so that the material can efficiently enter the material guide hole without residue; the high-temperature sealing rings are arranged at one end of the nozzle core close to the material cavity and in the area of the nozzle core close to the nozzle core support lug, so that on one hand, when the injection nozzle runs, the temperature of raw materials is easy to rise, and the high-temperature sealing rings are needed to prevent the injection nozzle parts from sliding relatively; the one end that penetrates the mouth core and be located to penetrate the mouth is equipped with the through-hole that encircles the guide hole, and its effect lies in when making the material jet out at a high speed for the reposition of redundant personnel plays the effect of cooling, and the guide hole lies in the opening of the one end of penetrating the mouth and makes the material be difficult for keeping somewhere by global slope to guide hole center, changes in high-efficient and jets out and the clearance.

Drawings

The present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of an injection nozzle according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a nozzle device according to an embodiment of the present invention.

The device comprises a screw rod-1, a charging barrel-2, a material cavity-3, a connecting screw-4, an injection head-5, a nozzle device-6, a high-temperature sealing ring-61, a nozzle base-62, a nozzle core-63, a return spring-64, a nozzle core lug-65, a sealing retainer ring-66, a nozzle-67, a return pressing ring-68, a limiting block-69, a guide hole-610 and a through hole-611.

Detailed Description

Embodiments according to the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 1-2, an injection nozzle with a stable structure according to an embodiment of the present invention includes a barrel 2, an injection head 5, a material chamber 3 formed by the barrel 2 and the injection head 5, a screw rod 1 reciprocating in the material chamber 3, 12 connection screws 4 fixedly connecting the injection head 5 and the barrel 2, and a nozzle device 6 fixed to the injection head 5; the nozzle device 6 comprises a nozzle core 63 connected with the injection head 5, a material guide hole 610 is arranged in the center of the nozzle core 63, and the material guide hole 610 is connected with the material cavity 3, so that the material is extruded by the screw 1 and enters the material guide hole 610 from the material cavity 3.

Specifically, the material cavity 3 is in a horn shape gradually decreasing along the axial direction, and the inclination of the material cavity is consistent with the inclination of the material inlet of the material guide hole 610, so that the continuity of end face connection is ensured, and the continuity of the material entering the material guide hole 610 from the material cavity 3 is ensured.

Specifically, nozzle core 63 is equipped with high temperature sealing washer 61 and nozzle seat 62 in a sleeving manner, the region of nozzle seat 62 close to nozzle core 63 is in contact connection with high temperature sealing washer 61, the region far away from nozzle core 63 is fixedly connected with injection head 5 by 4 screws, high temperature sealing washer 61 is used for preventing relative slippage of parts, and plays a role in extrusion buffering of nozzle seat 62 and injection head 5.

Specifically, the nozzle core 63 is sleeved with a limit block 69, one end of the limit block 69 is connected with the nozzle base 62, and the other end is connected with the nozzle core support lug 65; the stopper 69 cover is equipped with reset spring 64, and reset spring 64 one end is connected the nozzle seat 62, and the nozzle core journal stirrup 65 is connected to the other end, and stopper 69 plays the supporting role, supports the impact of nozzle seat 62, and reset spring 64 is in balanced state, has slightly become then provides elasticity in order to realize the buffering, further keeps the normal position nature of each part, so stopper 69 and reset spring 64 then play firm effect in coordination, make the stable in structure who moulds plastics and penetrate the mouth.

Specifically, a plurality of through holes 611 surrounding the material guide holes 610 are uniformly distributed at one end of the material guide holes 610 far away from the injection head 5 in the axial direction, and the function of the material guide holes is to split the material when the material is ejected at a high speed, so that the material is uniform and has the function of cooling.

Specifically, the nozzle core support lug 65 is connected with the reset pressure ring 68 to form a nozzle 67, the nozzle 67 covers the sealing check ring 66 and the high-temperature sealing ring 61, and the sealing check ring 66 and the high-temperature sealing ring 61 are connected with each other and sleeved on the nozzle core 63.

Specifically, the nozzle core 63 is provided with a protrusion, which is embedded into the limit block 69 and abuts against the nozzle core support lug 65 for shunting the force and reducing the impact force at the discharge port of the nozzle core 63.

Specifically, the through hole 611 is gradually inclined from the peripheral surface of the nozzle core 63 to the material guide hole 610 from a position far away from the injection head 5 to a position close to the injection head 5, and the inclination aims to increase the amount of the material to be distributed and improve the cooling effect.

Specifically, the opening of the material guiding hole 610 at one end of the nozzle 67 is inclined from the peripheral surface to the center of the material guiding hole 610 to form a funnel-shaped discharge hole, so that the discharge is smoother and more efficient.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a mouth is penetrated in stable in structure's moulding plastics which characterized in that: the injection device comprises a material barrel, an injection head, a material cavity formed by the material barrel and the injection head together, a screw rod reciprocating in the material cavity, a plurality of connecting screws for fixedly connecting the injection head and the material barrel, and a nozzle device fixed on the injection head; the nozzle device comprises a nozzle core connected with the injection head, a material guide hole is formed in the center of the nozzle core and connected with the material cavity, and therefore materials are extruded by the screw rod and enter the material guide hole from the material cavity.

2. A structurally stable injection molding nozzle as claimed in claim 1, wherein: the material cavity is in a horn shape which is gradually reduced along the axial direction, and the inclination of the material cavity is consistent with that of a material inlet of the material guide hole.

3. A structurally stable injection molding nozzle as claimed in claim 1, wherein: the nozzle core is sleeved with a high-temperature sealing ring and a nozzle base, the area of the nozzle base close to the nozzle core is in contact connection with the high-temperature sealing ring, and the area far away from the nozzle core is fixedly connected with the injection head through a plurality of screws.

4. A structurally stable injection molding nozzle as claimed in claim 1, wherein: the nozzle core is sleeved with a limiting block, one end of the limiting block is connected with the nozzle base, and the other end of the limiting block is connected with the nozzle core support lug; the limiting block is sleeved with a return spring, one end of the return spring is connected with the nozzle base, and the other end of the return spring is connected with the nozzle core support lug.

5. A structurally stable injection molding nozzle as claimed in claim 1, wherein: and a plurality of through holes surrounding the material guide holes are uniformly distributed at one end of the material guide holes far away from the injection head along the axis direction.

6. A structurally stable injection molding nozzle as claimed in claim 4, wherein: the nozzle core support lug is connected with the reset pressing ring to form the nozzle, the nozzle is coated with the sealing check ring and the high-temperature sealing ring, and the sealing check ring and the high-temperature sealing ring are connected with each other and sleeved on the nozzle core.

7. A structurally stable injection molding nozzle as claimed in claim 1, wherein: the nozzle core is provided with a bulge, and the bulge is embedded into the limiting block and abuts against the nozzle core support lug.

8. A structurally stable injection molding nozzle as claimed in claim 5, wherein: the through holes are gradually inclined from the peripheral surface of the nozzle core to the material guide hole from the direction far away from the injection head to the direction close to the injection head.

9. A structurally stable injection molding nozzle as claimed in claim 5, wherein: the opening of the material guide hole at one end of the nozzle is inclined towards the center of the material guide hole from the peripheral surface to form a funnel-shaped discharge hole.