CN201872295U

CN201872295U - Color-changing heat insulation cap

Info

Publication number: CN201872295U
Application number: CN2010202758726U
Authority: CN
Inventors: 杨正清
Original assignee: JINGKONG MECHANICAL AND ELECTRIC Ltd
Current assignee: JINGKONG MECHANICAL AND ELECTRIC Ltd
Priority date: 2010-07-29
Filing date: 2010-07-29
Publication date: 2011-06-22
Anticipated expiration: 2020-07-29

Abstract

The embodiment of the utility model discloses a color-changing heat insulation cap. Molten plastics can be injected into a cavity by the color-changing heat insulation cap at the end part of a hot nozzle structure; the color-changing heat insulation cap presents the shape of a cylindrical table; the end part of the color-changing heat insulation cap is provided with a containing cavity, and the containing cavity and a hot nozzle core are sheathed in a matching way; a through hole used for extruding the molten plastics from the bottom of the containing cavity is arranged at the middle part of the color-changing heat insulation cap in a run-through way; and the periphery of the open end of the through hole is provided with a ring groove capable of preventing the molten plastics from plugging the outlet end of the hot nozzle core. With the adoption of the color-changing heat insulation cap in the embodiment of the utility model, the molten plastics can be effectively prevented from plugging the outlet end of the hot nozzle core; moreover, the structure of the color-changing heat insulation cap is simple, the service life of the hot nozzle structure is prolonged and the production efficiency of the hot nozzle structure is improved.

Description

The heat insulation cap of a kind of colour changing

Technical field

The utility model relates to mechanical equipment technical field, relates in particular to the heat insulation cap of a kind of colour changing.

Background technology

As a kind of injection molding mould, hot runner mould economizes in raw materials because of it has, and can enhance productivity, and improves product quality, simplifies plurality of advantages such as product subsequent handling, has obtained to use widely in the injection moulding industry.

TOP-TIP generally is made up of several parts such as hot nozzle, flow distribution plate, temperature control box and annexes.Existing heat chews that structure does not have anti-plugging structure or there is design defect in the anti-plugging structure that has, the gum outlet shutoff of when causing the plastics self-heating of molten condition to be chewed in the cavity chewing core and extrude heat being chewed core by heat, reduce the production efficiency of injection mo(u)lding, influenced hot service life of chewing structure.

The utility model content

The utility model embodiment technical problem to be solved is, provides a kind of colour changing heat insulation cap, can effectively prevent the port of export shutoff that the plastics of molten condition are chewed core with heat, simple in structure, has improved service life and production efficiency that heat is chewed structure.

In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of colour changing heat insulation cap, the plastics of molten condition can be chewed the heat insulation cap injection of the colour changing die cavity of structure end via heat, the heat insulation cap of described colour changing is the cylinder table shape, its end is offered and is used for chewing the containing cavity that core is made the sheathed usefulness of coupling with heat, the middle part of the heat insulation cap of described colour changing connects at the bottom of the chamber of described containing cavity offers the through hole that the plastics that are used to make molten condition are extruded, and is provided with around the described through hole openend to prevent that the plastics of molten condition from chewing described heat the annular groove of core port of export shutoff.

Preferably, described heat is chewed core and is cylindric, and it has the hollow tubular body of opening for two ends, and the bore that described heat is chewed the core port of export is slightly less than its internal diameter.

Preferably, the heat insulation cap of described colour changing can be retained on described heat by described containing cavity and chews on the port of export of core.

Preferably, described annular groove is chewed described heat the shape of the described port of export shutoff of core for preventing the plastics of molten condition.

Implement the heat insulation cap of colour changing of the utility model embodiment, because annular groove is set around the described through hole openend of the heat insulation cap of colour changing, the heat insulation cap of described colour changing can prevent effectively that the plastics of molten condition from chewing heat the port of export shutoff of core, simple in structure, improved hot service life and production efficiency of chewing structure.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of the heat insulation cap of the utility model embodiment colour changing;

Fig. 2 is the explosion structural representation that the utility model embodiment heat is chewed structure.

The specific embodiment

For making the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing.

Referring to Fig. 1, the heat insulation cap of the colour changing of the utility model embodiment, the plastics of molten condition can be chewed the heat insulation cap 1 injection die cavity of colour changing of structure end via heat, the heat insulation cap 1 of described colour changing is the cylinder table shape, its end is offered and is used for chewing the containing cavity 12 that core 2 is made the sheathed usefulness of coupling with heat, the middle part of the heat insulation cap 1 of described colour changing connects at the bottom of the chamber of described containing cavity 12 offers the through hole 14 that the plastics that are used to make molten condition are extruded, and is provided with around described through hole 14 openends to prevent that the plastics of molten condition from chewing described heat the annular groove 16 of core 2 ports of export 22 shutoff.

Heat is chewed core 2 and roughly is cylindric, it has the hollow tubular body of opening for two ends, the bore of the one port of export 22 is slightly less than its internal diameter, the lateral body that heat is chewed core 2 is offered has the cylinder table that layer exponent number do not wait, during concrete enforcement, heat is chewed core 2 and can be fixed and be contained in heat and chew in the cavity that body 3 has (figure does not show), chewing core 2 when heat fixes and is contained in heat when chewing in the cavity (figure does not show) that body 3 has, heat is chewed the end that core 2 has a port of export 22 and is positioned at the outside that described heat is chewed body 3, at this moment, the heat insulation cap 1 of colour changing can be set in heat and chew on core 2 ports of export 22, finish assembling.

The heat insulation cap 1 of colour changing is to avoid the plastics of molten condition when the plastics of molten condition are extruded heat and chewed the structure port that heat is chewed the member of core 2 ports of export 22 shutoff, and it comprises: containing cavity 12, through hole 14 and annular groove 16.

It is roughly the same that the shape of containing cavity 12 and Re Zui chew the shape of core 2 ports, and the heat insulation cap 1 of colour changing can be retained on heat by containing cavity 12 and chew on the port of export 22 of core 2.

Through hole 14 connects at the bottom of the chamber of containing cavity 12 and offers, when the heat insulation cap 1 of colour changing can be retained on heat when chewing on the port of export 22 of core 2 by containing cavity 12, heat insulation cap 1 through hole of colour changing 14 correspondences are positioned at heat and chew on core 2 ports of export 22, when the plastics self-heating of molten condition is chewed core 2 ports of export 22 and extruded, can further extrude by the through hole 14 of the heat insulation cap 1 of colour changing.

Annular groove 16 be positioned at through hole 14 openends around, it is mainly used in the plastics that prevent molten condition described heat is chewed 22 shutoff of core 2 ports of export, be understandable that, the size and the position of annular groove 16 do not limit, as long as satisfy the plastics that can prevent molten condition in the actual production described heat are chewed 22 shutoff of core 2 ports of export.

The heat insulation cap of the colour changing of the utility model embodiment is in concrete enforcement, heat is chewed core 2 and can be fixed and be contained in heat and chew in the cavity that body 3 has (figure does not show), chewing core 2 when heat fixes and is contained in heat when chewing in the cavity (figure does not show) that body 3 has, heat is chewed the end that core 2 has a port of export 22 and is positioned at the outside that described heat is chewed body 3, at this moment, the heat insulation cap 1 of colour changing can be set in heat chews on core 2 ports of export 22, heat insulation cap 1 through hole of colour changing 14 correspondences are positioned at heat chews on core 2 ports of export 22, finishes assembling.

When the plastics self-heating of molten condition is chewed in body 3 cavitys (figure do not show) and to be chewed core 2 ports of export 22 by heat, can further extrude by the through hole 14 of the heat insulation cap 1 of colour changing, in this process, the annular groove 16 of the setting of the heat insulation cap 1 of colour changing can prevent that the plastics of molten condition from chewing 22 shutoff of core 2 ports of export with described heat.

In other embodiments of the heat insulation cap of colour changing of the utility model embodiment, shape, the size of the heat insulation cap of colour changing do not limit, chew on core 2 ports of export 22 and be advisable can be set in heat, during concrete enforcement, described heat is chewed 22 shutoff of core 2 ports of export as long as the satisfied annular groove that is provided with can prevent the plastics of molten condition.

The heat insulation cap of the colour changing of the utility model embodiment, because annular groove is set around the described through hole openend of the heat insulation cap of colour changing, the heat insulation cap of described colour changing can prevent effectively that the plastics of molten condition from chewing heat the port of export shutoff of core, simple in structure, improved hot service life and production efficiency of chewing structure.

Above disclosed only is a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims

1. heat insulation cap of colour changing, the plastics of molten condition can be chewed the heat insulation cap injection of the colour changing die cavity of structure end via heat, it is characterized in that, the heat insulation cap of described colour changing is the cylinder table shape, its end is offered and is used for chewing the containing cavity that core is made the sheathed usefulness of coupling with heat, the middle part of the heat insulation cap of described colour changing connects at the bottom of the chamber of described containing cavity offers the through hole that the plastics that are used to make molten condition are extruded, and is provided with around the described through hole openend to prevent that the plastics of molten condition from chewing described heat the annular groove of core port of export shutoff.

2. the heat insulation cap of colour changing as claimed in claim 1 is characterized in that described heat is chewed core and is cylindric, and it has the hollow tubular body of opening for two ends, and the bore that described heat is chewed the core port of export is slightly less than its internal diameter.

3. the heat insulation cap of colour changing as claimed in claim 2 is characterized in that, the heat insulation cap of described colour changing can be retained on described heat by described containing cavity and chew on the port of export of core.