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CN-122008494-A - Mouth core and mouth cap assembling structure

CN122008494ACN 122008494 ACN122008494 ACN 122008494ACN-122008494-A

Abstract

The invention discloses a nozzle core and nozzle cap assembly structure, which comprises a nozzle core and a nozzle cap, wherein the nozzle cap is coaxially assembled on the nozzle core, a nozzle is arranged at the top end of the nozzle core, a plurality of first through holes which are obliquely distributed are arranged near the arc surface below an inner cavity of the nozzle core, a plurality of second through holes are formed in the cylindrical surface below the first through holes, the outer part of the first through holes is low, the inner part of the first through holes is high, the nozzle core and the nozzle cap are assembled to form a plastic steering cavity, and the plastic steering cavity is communicated with the first through holes and the second through holes respectively. The invention adopts the coaxially assembled nozzle core and the nozzle cap, the plastic steering cavity is formed between the nozzle core and the nozzle cap, the plastic enters the plastic steering cavity formed between the nozzle cap and the outer wall of the nozzle core from the first through hole after entering from the nozzle core, and finally enters the nozzle core from the second through hole on the nozzle core, so that the plastic is transversely mixed, the pressure of the plastic is finally consistent, the problems of pressure difference and speed difference of the plastic are solved, and the problem of a fusion line in the prior art is solved.

Inventors

  • GUO YUQING

Assignees

  • 郭育青

Dates

Publication Date
20260512
Application Date
20240416

Claims (6)

  1. 1. The utility model provides a mouth core, mouth cap assembly structure, includes mouth core (1) and mouth cap (2), the coaxial assembly of mouth cap (2) is on mouth core (1) spout (3) have been seted up on mouth core (1) top, wherein be close to mouth core (1) are provided with a plurality of first through-holes (4) of slope distribution in inside cavity below arc surface department, a plurality of second through-holes (5) have been seted up on the cylinder of its below in first through-hole (4) outside low, mouth core (1) and mouth cap (2) assemble and form plastic and turn to cavity (10), plastic turns to cavity (10) respectively in first through-hole (4), second through-hole (5) UNICOM.
  2. 2. The assembling structure of the nozzle core and the nozzle cap according to claim 1, wherein the second through holes (5) are distributed in a circumferential array structure below the nozzle core (1) and are high at the outside and low at the inside.
  3. 3. A nozzle core and nozzle cap assembly structure according to claim 2, wherein the first through holes (4) are distributed on the nozzle core (1) in a circumferential array structure.
  4. 4. The nozzle core and nozzle cap assembly structure according to claim 1, wherein the nozzle core (1) is provided with a first assembly surface (6) and a second assembly surface (7), the nozzle cap (2) is provided with a first assembly surface (8) and a second assembly surface (9), the nozzle core (1) is connected with the nozzle cap (2) through the second assembly surface (7) and the second assembly surface (9) in an interference fit manner, and the nozzle core (1) is defined through the first assembly surface (6) and the first assembly surface (8) in a fit manner.
  5. 5. The assembling structure for a nozzle core and a nozzle cap according to claim 4, wherein the inside of the nozzle core (1) is arranged in a hollow manner, and the hollow portion is wider at the upper part and narrower at the lower part.
  6. 6. The assembling structure of a nozzle core and a nozzle cap according to claim 4, wherein the second matching surface (9) is a protruding part formed by extending inwards of the inner wall of the bottom of the nozzle cap (2).

Description

Mouth core and mouth cap assembling structure Technical Field The invention relates to the technical field of mechanical parts, in particular to a nozzle core and nozzle cap assembly structure. Background The traditional hot runner system is generally a needle valve hot runner system, and because of inconsistent internal pressure of plastic around the valve needle, the plastic appears fast on one side and slow on the other side, so that a fusion line phenomenon appears in the application of the automobile front lamp double-color lens and the hot runner. Disclosure of Invention In order to solve the technical problems, the technical scheme includes that the nozzle core and nozzle cap assembly structure comprises a nozzle core and a nozzle cap, wherein the nozzle cap is coaxially assembled on the nozzle core, a nozzle is arranged at the top end of the nozzle core, a plurality of first through holes which are obliquely distributed are arranged near the arc surface below an inner cavity of the nozzle core, a plurality of second through holes are formed in a cylindrical surface below the first through holes in an outer low and inner high mode, the nozzle core and the nozzle cap are assembled to form a plastic steering cavity, and the plastic steering cavity is communicated with the first through holes and the second through holes respectively. Further, the second through holes are distributed in a circumferential array structure below the nozzle core, and are high outside and low inside. Further, the first through holes are distributed on the nozzle core in a circumferential array structure. Compared with the prior art, the invention has the advantages that: The invention adopts the coaxially assembled nozzle core and the nozzle cap, the plastic steering cavity is formed between the nozzle core and the nozzle cap, the plastic enters the plastic steering cavity formed between the nozzle cap and the outer wall of the nozzle core from the first through hole after entering from the nozzle core, and finally enters the nozzle core from the second through hole on the nozzle core, so that the plastic is transversely mixed, the pressure of the plastic is finally consistent, the problems of pressure difference and speed difference of the plastic are solved, and the problem of a fusion line in the prior art is solved. Drawings FIG. 1 is a schematic view of a nozzle core and nozzle cap assembly structure according to the present invention; FIG. 2 is a schematic view of the structure of a nozzle core; FIG. 3 is a schematic cross-sectional view of a nozzle core; FIG. 4 is a schematic view of the structure of the mouthpiece; FIG. 5 is a schematic cross-sectional view of a tip cap; Fig. 6 is a usage state reference diagram of the present invention. Wherein, 1, a mouth core, 2, a mouth cap, 3, a spout, 4, a first through hole, 5, a second through hole, 6, an assembling surface I, and 7, a second assembling surface, 8, a first assembling surface, 9, a second assembling surface, 10 and a plastic steering cavity. Detailed Description The present invention will be described in further detail with reference to the accompanying drawings. The present invention will be described in detail with reference to the accompanying drawings. The invention provides a nozzle core and nozzle cap assembly structure in concrete implementation, which comprises a nozzle core 1 and a nozzle cap 2, wherein the nozzle cap 2 is coaxially assembled on the nozzle core 1, a nozzle 3 is arranged at the top end of the nozzle core 1, a plurality of first through holes 4 which are obliquely distributed are arranged near the arc surface below an inner cavity of the nozzle core 1, the first through holes 4 are low outside and high inside, a plurality of second through holes 5 are arranged on a cylindrical surface below the first through holes 4, the nozzle core 1 and the nozzle cap 2 are assembled to form a plastic steering cavity 10, and the plastic steering cavity 10 is communicated with the first through holes 4 and the second through holes 5 respectively. Examples: As shown in fig. 1, the nozzle core 1 and the nozzle cap 2 are coaxially assembled to form a nozzle structure, as shown in fig. 6, the nozzle structure is connected to a hot runner plastic pipeline A in the prior art, the end part of the hot runner plastic pipeline A is a mold gate so as to inject plastic into a plastic product B through the mold gate, wherein both the hot runner plastic pipeline A and the plastic product B are in the prior art, by controlling a valve needle on the plastic pipeline in the prior art, after the valve needle is opened, the plastic passes through a middle hole of the nozzle core 1 at the moment, when the plastic flows to a first through hole 4 on the nozzle core 1, the plastic flows out of the nozzle core 1 from the first through hole 4 to enter a plastic steering cavity 10 formed after the assembly of the nozzle core 1 and the nozzle cap 2, and then flows back to the no