CN212636444U

CN212636444U - Injection mold hot runner system

Info

Publication number: CN212636444U
Application number: CN202021112762.8U
Authority: CN
Inventors: 黄醒
Original assignee: Shenzhen Shipin Technology Co ltd
Current assignee: Shenzhen Shipin Technology Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-03-02
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses an injection mold hot runner system, including nozzle, runner, inlet pipe, internal heating pipe, external heating pipe, threading pipe, adjusting link, sealing sleeve, top shell, go up electromagnet, lower electro-magnet, gag lever post, through-hole and compression spring. The utility model has the advantages that: interior heating pipe constitutes the heating system of this runner with outer heating tube jointly, can carry out inside and outside heating to the material that enters into in the runner, in order to improve the speed of hot melt, go up electromagnet and produce the magnetic pole in opposite directions after the electro-magnet circular telegram down, can realize driving the removal of electro-magnet down, and then upwards mention the adjusting link, in order to realize opening the discharge opening of nozzle, and then can control the ejection of compact, go up the electro-magnet and be elastic setting with the compression spring that the electro-magnet passes through the gag lever post cover and establishes down on one's body, the electro-magnet can resume the normal position down after the outage, be about to adjusting link and push down, in order to realize the discharge opening.

Description

Injection mold hot runner system

Technical Field

The utility model relates to a hot runner device specifically is an injection mold hot runner system, belongs to injection mold technical field.

Background

Hot runners are indispensable in injection molding production, and for plastic manufacturers, it is the key to select a hot runner suitable for product molding and to master the correct use method of the hot runner, and the hot runner system generally consists of a hot nozzle, a splitter plate, a temperature control box, accessories and the like, and the hot nozzle generally comprises two types: open hot nozzles and needle valve hot nozzles, because the form of the hot nozzle directly determines the selection of the hot runner system and the manufacture of the mold, the hot runner system is divided into the open hot runner system and the needle valve hot runner system correspondingly.

Although the existing hot runner systems are few in types, the hot runner systems are widely used, and still have some problems in the using process, firstly, materials are often melted only by adopting an external heating type or internal heating type heating method, the hot melting efficiency is low, and secondly, when the hot runner systems are used, the opening and closing of a discharge port of a nozzle of a hot runner are not convenient to control, so that redundant molten materials flow out easily, and waste is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold hot runner system just in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a hot runner system of an injection mold comprises a nozzle, a flow passage, a feeding pipe, an inner heating pipe, an outer heating pipe, a threading pipe, an adjusting connecting rod, a sealing sleeve, a top shell, an upper electromagnet, a lower electromagnet, a limiting rod, a through hole and a compression spring; the inner side cavity of the nozzle is provided with a flow passage, the tail end feed inlet of the nozzle is connected with a feed pipe, the flow passage of the nozzle is internally inserted with an inner heating pipe, the inner wall of the nozzle is fixedly provided with an outer heating pipe, a connecting wire of the inner heating pipe and the outer heating pipe passes through a threading pipe at the tail end of the nozzle to be electrically connected with an external power supply, the top end of the nozzle is fixedly provided with a top shell through screws, the top shell is internally provided with an upper electromagnet and a lower electromagnet which are arranged in parallel, a compression spring is sleeved on a rod body of a limiting rod between the upper electromagnet and the lower electromagnet, four corners of the lower surface of the upper electromagnet are fixedly connected with the top end of the nozzle through the limiting rod, the lower electromagnet is sleeved on the limiting rod through a through hole arranged at the four corners, and the lower surface of the, the limiting rod penetrates through the top end of the nozzle and is fixedly connected with the top end of the sealing sleeve and the top end of the inner heating pipe in the flow channel.

Preferably, in order to plug up the discharge end through the removal realization of internal heating pipe, the discharge opening has been seted up to the bottom of nozzle, and the bottom of internal heating pipe supports the discharge opening department at the nozzle.

Preferably, in order to heat the material entering the flow channel internally and externally, the internal heating pipe and the external heating pipe together form a heating system of the flow channel.

Preferably, in order to open the discharge hole of the nozzle and further control discharge, the upper electromagnet and the lower electromagnet are electrified to generate opposite magnetic poles.

Preferably, in order to restore the lower electromagnet to the original position after power failure, the upper electromagnet and the lower electromagnet are elastically arranged through a compression spring sleeved on the limiting rod body.

The utility model has the advantages that: this injection mold hot runner system reasonable in design, the discharge opening has been seted up to the bottom of nozzle, and the bottom of interior heating pipe supports the discharge opening department at the nozzle, can realize plugging up the discharge end through the removal of interior heating pipe, interior heating pipe constitutes the heating system of this runner with outer heating pipe jointly, can carry out inside and outside heating to the material that enters into in the runner, with the speed that improves the hot melt, go up electromagnet and produce the magnetic pole in opposite directions after the electro-magnet circular telegram down, can realize driving the removal of electro-magnet down, and then upwards mention the adjusting link, with the realization discharge opening of opening the nozzle, and then can control the ejection of compact, go up the compression spring that electro-magnet and lower electro-magnet established through the gag lever post upper shield cover and be elastic setting, the electro-magnet can resume the normal position down after the outage, be about to adjust the connecting rod and push down.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic view of the internal structure of the top case of the present invention;

fig. 3 is the schematic view of the installation structure of the electromagnet of the present invention.

In the figure: 1. the device comprises a nozzle, 2, a flow channel, 3, a feeding pipe, 4, an inner heating pipe, 5, an outer heating pipe, 6, a threading pipe, 7, an adjusting connecting rod, 8, a sealing sleeve, 9, a top shell, 10, an upper electromagnet, 11, a lower electromagnet, 12, a limiting rod, 13, a through hole, 14 and a compression spring.

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.

Referring to fig. 1 to 3, a hot runner system of an injection mold includes a nozzle 1, a flow channel 2, a feeding pipe 3, an inner heating pipe 4, an outer heating pipe 5, a threading pipe 6, an adjusting link 7, a sealing sleeve 8, a top shell 9, an upper electromagnet 10, a lower electromagnet 11, a limiting rod 12, a through hole 13 and a compression spring 14; a flow channel 2 is formed in an inner cavity of the nozzle 1, a feeding pipe 3 is connected to a tail end feeding port of the nozzle 1, an inner heating pipe 4 is inserted into the flow channel 2 of the nozzle 1, an outer heating pipe 5 is fixedly mounted on the inner wall of the nozzle 1, a connecting line between the inner heating pipe 4 and the outer heating pipe 5 penetrates through a threading pipe 6 at the tail end of the nozzle 1 to be electrically connected with an external power supply, a top shell 9 is fixedly mounted at the top end of the nozzle 1 through screws, an upper electromagnet 10 and a lower electromagnet 11 are arranged in the top shell 9, the upper electromagnet 10 and the lower electromagnet 11 are arranged in parallel, a compression spring 14 is sleeved on a rod body of a limiting rod 12 between the upper electromagnet 10 and the lower electromagnet 11, four corners of the lower surface of the upper electromagnet 10 are fixedly connected with the top end of the nozzle 1 through the limiting rod 12, and the lower electromagnet 11 is sleeved on the limiting rod 12 through, the lower surface of the lower electromagnet 11 is vertically connected with a limiting rod 12, and the limiting rod 12 penetrates through the top end of the nozzle 1 and is fixedly connected with the top end of the sealing sleeve 8 and the top end of the inner heating pipe 4 in the flow channel 2.

The bottom end of the nozzle 1 is provided with a discharge hole, and the bottom end of the inner heating pipe 4 is propped against the discharge hole of the nozzle 1, so that the discharge end can be blocked by the movement of the inner heating pipe 4, the inner heating pipe 4 and the outer heating pipe 5 jointly form a heating system of the flow passage 2, and can heat the material entering the flow passage 2 inside and outside, so as to improve the rate of hot melting, the upper electromagnet 10 and the lower electromagnet 11 generate opposite magnetic poles after being electrified, the movement of the lower electromagnet 11 can be driven, further lifting the adjusting connecting rod 7 upwards to open the discharging hole of the nozzle 1, further controlling discharging, the upper electromagnet 10 and the lower electromagnet 11 are elastically arranged through a compression spring 14 sleeved on the rod body of the limiting rod 12, and the lower electromagnet 11 can be restored to the original position after power failure, namely the adjusting connecting rod 7 is pushed downwards to close the discharge hole of the nozzle 1.

The working principle is as follows: when the injection mold hot runner system is used, materials enter a flow channel 2 in a nozzle 1 through a feeding pipe 3, a power supply of an inner heating pipe 4 and an outer heating pipe 5 is connected, the materials are heated to realize hot melting, then the power supply of an upper electromagnet 10 and a lower electromagnet 11 is connected, opposite magnetic poles are generated after the materials are connected, the movement of the lower electromagnet 11 can be driven, an adjusting connecting rod 7 is lifted upwards to open a discharge hole of the nozzle 1, the discharge can be controlled, after the materials are injected once, the power supply of the upper electromagnet 10 and the power supply of the lower electromagnet 11 are disconnected, the lower electromagnet 11 moves downwards under the action of a compression spring 14, the adjusting connecting rod 7 is pushed downwards to close the discharge hole of the nozzle 1.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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. An injection mold hot runner system, characterized in that: the device comprises a nozzle (1), a flow passage (2), a feeding pipe (3), an inner heating pipe (4), an outer heating pipe (5), a threading pipe (6), an adjusting connecting rod (7), a sealing sleeve (8), a top shell (9), an upper electromagnet (10), a lower electromagnet (11), a limiting rod (12), a through hole (13) and a compression spring (14); the inner side cavity of the nozzle (1) is opened to form a flow channel (2), a feeding pipe (3) is connected to a tail end feeding port of the nozzle (1), an inner heating pipe (4) is inserted into the flow channel (2) of the nozzle (1), an outer heating pipe (5) is fixedly mounted on the inner wall of the nozzle (1), a connecting line of the inner heating pipe (4) and the outer heating pipe (5) penetrates through a threading pipe (6) located at the tail end of the nozzle (1) to be electrically connected with an external power supply, a top shell (9) is fixedly mounted at the top end of the nozzle (1) through screws, an upper electromagnet (10) and a lower electromagnet (11) are arranged in the top shell (9), the upper electromagnet (10) and the lower electromagnet (11) are arranged in parallel, and a compression spring (14) is sleeved on a rod body of a limiting rod (12) between the upper electromagnet (10) and the lower electromagnet (11), go up electromagnet (10) lower surface four corners department and carry out fixed connection through gag lever post (12) and the top of nozzle (1), down electromagnet (11) cover through-hole (13) that four corners department seted up establishes on gag lever post (12), the lower surface vertical connection of electromagnet (11) has gag lever post (12) down, gag lever post (12) pass nozzle (1) top set up with seal sleeve (8) and runner (2) in interior heating pipe (4) top fixed connection together.

2. An injection mold hot-runner system according to claim 1, wherein: the bottom end of the nozzle (1) is provided with a discharge hole, and the bottom end of the inner heating pipe (4) is abutted to the discharge hole of the nozzle (1).

3. An injection mold hot-runner system according to claim 1, wherein: the inner heating pipe (4) and the outer heating pipe (5) jointly form a heating system of the flow passage (2).

4. An injection mold hot-runner system according to claim 1, wherein: the upper electromagnet (10) and the lower electromagnet (11) generate opposite magnetic poles after being electrified.

5. An injection mold hot-runner system according to claim 1, wherein: the upper electromagnet (10) and the lower electromagnet (11) are elastically arranged through a compression spring (14) sleeved on the rod body of the limiting rod (12).