KR101860908B1 - Hot runner system of flexible type - Google Patents

Abstract

The present invention relates to a flexible type hot runner system, and more particularly, to a hot runner system of a flexible type, comprising: a top stationary plate having a nozzle locator and a mounting portion to which a manifold block having a plurality of manifold flow paths is fastened; A heating hose connected to the manifold flow path to move the resin; A first fastening coupler connecting the manifold passage and the heating hose; A screw nozzle to which the heating hose is coupled and discharges the resin to the gate side of the mold; A second fastening coupler connecting the heating hose and the screw nozzle; A support panel formed at a lower portion of the upper fixing plate to penetrate the screw nozzle and supporting a lower end of the second fastening coupler; And a reinforcement plate provided at a lower portion of the support panel and supporting the screw nozzle so as to discharge the resin to the gate side of the mold, thereby reducing the thickness of the hot runner system and directly connecting the nozzle portion of the injection machine It is possible to reduce the temperature of the mold to reduce the injection cycle time as well as to reduce the power consumption due to the reduction of the heat source of the hot runner system do.

Description

[0001] The present invention relates to a hot runner system of a flexible type,

The present invention relates to a flexible type hot runner system. More specifically, the present invention can reduce the thickness of the mold of the hot runner system, simplify the nozzle locator, the manifold and the nozzle section to reduce parts of the hot runner system, The present invention relates to a flexible type hot runner system.

Generally, a plastic product corresponding to a cavity is produced through a nozzle locator, a manifold, and a nozzle, which are components of a hot runner system during injection molding using a hot runner.

The hot runner system enables the molding resin to be stably supplied to the mold side through various points in a molten state when the injection molding operation is performed using an injection machine. Even if the resin temperature is low and the injection pressure is low, It is known that there is a potential advantage.

The hot runner system includes a manifold in which a runner through which molding resin flows is provided, a heater for generating heat toward the runner of the manifold, and a resin for molding from the runner, And a nozzle unit to be installed.

According to the structure of such a hot runner system, it is very important to uniformly supply the molding resin to the cavity side of the mold in the molten state through the runner section in the manifold.

Particularly, since high-pressure air must be used for raising and lowering the valve device formed in the nozzle portion for supplying the resin, a hermetic structure for preventing air leakage is inevitably employed, and a large pneumatic device The size of the hot runner system is increased and the structure is complicated. Thus, the installation space is limited and there is a problem that it is difficult to select the nozzle length and the specification according to the injection molding product, and the maintenance management is extremely poor.

Korean Patent Publication No. 10-1020254

In order to solve the above problems, the present invention has been made in view of the above-mentioned background, and it is an object of the present invention to reduce the thickness of a mold of a hot runner system and reduce parts of a hot runner system by simplifying a nozzle locator, a manifold and a nozzle section, And it is an object of the present invention to provide a flexible type hot runner system which facilitates post management of a hot runner system.

According to an aspect of the present invention, there is provided a method of manufacturing a manifold block, the method comprising the steps of: forming a nozzle locate and mounting a manifold block on which a plurality of manifold flow paths are formed, A heating hose connected to the manifold flow path to move the resin; A first fastening coupler connecting the manifold passage and the heating hose; A screw nozzle to which the heating hose is coupled and discharges the resin to the gate side of the mold; A second fastening coupler connecting the heating hose and the screw nozzle; A support panel formed at a lower portion of the upper fixing plate to penetrate the screw nozzle and supporting a lower end of the second fastening coupler; And a reinforcement plate formed at a lower portion of the support panel and supporting the screw nozzle so as to discharge the resin to the gate side of the mold, thereby reducing the thickness of the hot runner system.

According to an embodiment of the present invention, the upper fixing plate includes a plurality of fixing clips for fixing the wirings connected to the manifold block to the upper fixing plate.

According to an embodiment of the present invention, a support block is formed between the upper fixing plate and the support panel to form a space for mounting the first and second fastening couplers and the heating hose.

According to an embodiment of the present invention, the first fastening coupler may include a first fastening portion that is coupled to the manifold flow path and has a communication hole through which the resin is moved, and a second fastening portion that connects the heating hose to the lower portion of the first fastening portion. And a hose coupling portion having a coupling groove formed therein.

According to an embodiment of the present invention, the heating hose includes a hose member connected to the manifold flow path to receive the resin, and a hose plunger for guiding the resin introduced into the hose member to the screw nozzle side do.

According to an embodiment of the present invention, the hose member of the heating hose may have a structure capable of adjusting the length depending on the length and type of the screw nozzle.

According to an embodiment of the present invention, the second fastening coupler includes a second fastening part to which the heating hose is fastened, and a nozzle fastening part coupled to the screw nozzle.

According to the present invention, there is provided a flexible type hot runner system, comprising: a cylindrical manifold block having a plurality of manifold flow paths formed by directly coupling with a nozzle portion of an injector to reduce an injection cycle time; A heating hose connected to the manifold flow path to move the resin; An upper fixing plate formed with a mounting portion through which the heating hose penetrates, the fixing plate being coupled to the base surface of the injector; A screw nozzle to which the heating hose is coupled and discharges the resin to the gate side of the mold; A first fastening coupler connecting the manifold passage and the heating hose; A second fastening coupler connecting the heating hose and the screw nozzle; A support panel formed at a lower portion of the upper fixing plate to penetrate the screw nozzle and supporting a lower end of the second fastening coupler; And a reinforcement plate provided at a lower portion of the support panel and supporting the screw nozzle to discharge the resin to the gate side of the mold so as to reduce the thickness of the hot runner system and reduce power consumption due to the reduction in heat source .

According to the embodiment of the present invention, the thickness of the mold of the hot runner system can be reduced, the nozzle locator, the manifold and the nozzle section can be simplified to reduce parts of the hot runner system, The post-management of the system can be facilitated.

1 and 2 are perspective views showing a flexible type hot runner system according to an embodiment of the present invention;
3 and 4 are engaging cross-sectional views showing a hot runner system of a flexible type according to an embodiment of the present invention.
FIG. 5 is an exploded perspective view showing a state in which a manifold block of a flexible type hot runner system and a heating hose are engaged with each other according to an embodiment of the present invention. FIG.
6A and 6B are enlarged views showing a hot runner system of a flexible type according to an embodiment of the present invention;
7 is a cross-sectional view of a screw nozzle of a flexible type hot runner system according to an embodiment of the present invention.
8 to 10 are perspective views showing a flexible type hot runner system according to an embodiment of the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

1 and 2 are perspective views showing a flexible type hot runner system according to an embodiment of the present invention; FIGS. 3 and 4 are engagement sectional views showing a flexible type hot runner system according to an embodiment of the present invention; 6A and 6B are exploded perspective views showing a state in which a manifold block of a flexible type hot runner system and a heating hose are fastened according to an embodiment of the present invention. FIGS. 6A and 6B show a flexible type hot runner system according to an embodiment of the present invention. FIG. 7 is a cross-sectional view showing a screw nozzle of a flexible type hot runner system according to an embodiment of the present invention, and FIGS. 8 to 10 show a flexible type hot runner system according to an embodiment of the present invention It is a perspective view.

As shown in the drawing, the flexible type hot runner system of the present invention includes an upper fixing plate 100 connecting the injector heating unit and the manifold block 140, and an upper fixing plate 100 coupled to the manifold block 140, A heating hose 150 for supplying the resin introduced through the nozzle locator 10 to the screw nozzle 300 and a first fastening coupler 200 for connecting the heating hose 150 to the manifold block 140. [ A support panel 120 and a reinforcing plate 130 to which the screw nozzle 300 is inserted and fixed and a second fastening coupler 400 connecting the screw nozzle 300 and the heating hose 150 .

The upper fixing plate 100 is connected to the nozzle locate 10 at an upper center portion of the upper fixing plate 100 so that the manifold block 140 can be connected to the lower surface of the manifold block 140 so that a universal resin supplied from the injector can be introduced into the manifold block 140. [ The mounting portion 104 is formed.

The upper fixing plate 100 further includes a fixing clip 106 for fixing the wirings connected to the manifold block 140 to the upper fixing plate 100.

At this time, it is preferable that a plurality of fixing clips 106 are formed so as to be spaced along the peripheral surface of the mounting portion 104.

The upper fixing plate 100 of the present invention penetrates through a support block 110 and a support panel 120 constituting a hot runner system and is coupled to and fixed to the reinforcing plate 130 so as to be integrally formed with each other A fixing pin 102 is formed at each corner.

The support block 110 is formed between the upper fixing plate 100 and the support panel 120 to form a predetermined space in which the first and second coupling couplers 200 and 400 and the heating hose 150 are installed, It is a component that performs an insulation function to prevent the resin from solidifying due to temperature.

It goes without saying that the support block 110 has the first through hole 160 through which the fixing pin 102 passes.

The support panel 120 is formed at a lower portion of the support block 110 and includes a first through hole 160 through which the fixing pin 102 passes and a second fastening coupler 400 coupled to the screw nozzle 300 And a second through hole 170 through which the screw nozzle 300 penetrates is formed.

That is, the support panel 120 seals the first and second fastening couplers 200 and 400 and the portion where the heating hose 150 is mounted together with the support block 110 to support the heat insulation function more effectively will be.

The reinforcing plate 130 is formed at a lower portion of the support panel 120 and is coupled by a fixing pin 102. The screw nozzle 300 is mounted to the gate side of the mold by the screw nozzle 300, So that the ejection is performed.

The manifold block 140 has a structure in which 1 to 12 manifold channels 142 can be distributed according to the number of gate points. The upper portion of the manifold block 140 is connected to the nozzle locator 10 of the injector, And distributes the inflowed resin to the screw nozzle 300 through the respective manifold passages 142. The resin injected into the manifold flow path 142 is supplied to the screw nozzle 300. [

In addition, the manifold block 140 of the present invention is described as being fastened to the mounting portion 104 formed on the upper fixing plate 100 by the fixing bolts. However, the present invention is not limited thereto, And a description thereof will be described in detail with reference to FIGS. 8 to 10 below.

The thus constructed hot runner system can minimize the volume of the space block and the manifold of the conventional hot runner system, and as a result, the entire volume and thickness of the hot runner system can be reduced.

The manifold block 140 of the present invention is coupled with a first fastening coupler 200 to be described later so that the screw nozzle 300 can be connected to the end of the manifold flow path 142.

The first fastening coupler 200 has an upper end connected to the manifold flow path 142 and a lower end connected to the heating hose 150 to connect the heating hose 150 and the manifold block 140, The resin distributed through the folding block 140 can be introduced into the heating hose 150 and the resin can be prevented from leaking.

The first fastening coupler 200 has a first fastening part 210 fastened to the manifold flow path 142 and is connected to the inner circumference of the first fastening part 210 through a manifold flow path 142 A communication hole 212 for allowing the movement of the resin is formed.

The first fastening coupler 200 is formed with a hose coupling portion 220 having a coupling groove 222 for coupling the hose plunger 154 of the heating hose 150 to the lower portion of the first coupling portion 210 .

5, the heating hose 150 connects the manifold block 140 and the screw nozzle 300, and is connected to the manifold flow path 142 to supply resin from the manifold flow path 142 And a hose plunger 154 for guiding the resin introduced into the hose member 152 side toward the screw nozzle 300 and discharging the resin to the gate side of the mold.

The hose member 152 of the heating hose 150 is made of a flexible material, and it is preferable that the hose member 152 has a structure capable of adjusting the length according to the length, type, etc. of the screw nozzle 300.

In addition, the second hinge coupler 400 is formed at the lower end of the heating hose 150 so as to be tightly coupled with the screw nozzle 300, thereby preventing leakage of the resin.

At this time, it is preferable that the heating hose 150 is fastened with the first and second fastening couplers 200 and 400 by a screw fastening type, but the present invention is not limited thereto.

In the present invention, since only the nozzle locator 10, the manifold block 140, and the heating hose 150 are replaced with each other during the color change of the resin, the preparation process of the injection molding can be largely eliminated, It is of course possible to mass-produce the injection molding.

The upper end of the second fastening coupler 400 is engaged with the lower end of the heating hose 150 and the lower end of the second fastening coupler 400 is coupled to the nozzle housing 310 of the screw nozzle 300, (300).

The second fastening coupler 400 includes a second fastening part 410 to which the heating hose is fastened and a nozzle coupling part 420 to be coupled to the screw nozzle 300.

The screw nozzle 300 includes a nozzle housing 310 constituting the body of the screw nozzle 300, a nozzle heater 320 configured to surround the outer circumferential surface of the nozzle housing 310, A nozzle tip 330 for ejecting the nozzle tip 330 toward the gate side of the mold and a union ring 340 coupling the nozzle tip 330 to the nozzle housing 310.

The nozzle housing 310 is formed to penetrate from the upper portion to the lower portion and the resin flow hole 312 through which the resin is supplied through the manifold block 140 and the heating hose 150 is formed, And a hose fixing groove 314 into which a hose connection 154 of the heating hose 150 is inserted and fixed is formed at an upper end thereof.

The nozzle heater 320 is configured to surround the outer circumferential surface of the nozzle housing 310 and functions to maintain the temperature of the resin moving through the resin flow hole 312 constant.

The nozzle tip 330 is formed at the lower end of the nozzle housing 310. A certain amount of resin is supplied through the resin flow hole 312 and the supplied resin is discharged to the gate side of the mold to perform injection molding Lt; / RTI >

The union ring 340 fixes the nozzle tip 330 to the nozzle housing 310 and allows the temperature of the nozzle tip 310 to be maintained constant so that the resin ring threading phenomenon, To prevent the occurrence of the problem.

Since the screw nozzle 300 according to the present invention is configured to be capable of organic coupling and separation with the second fastening coupler 400, various types of nozzles, such as an open nozzle method and a valve nozzle method, Of course.

8 to 10, the hot runner system of the present invention is configured such that the manifold block 140 is directly fastened to the nozzle portion of the injector, and a plurality of manifold blocks 140 formed on the manifold block 140 The folding line 142 and the heating hose 150 are connected to each other.

The upper fixing plate 100 is configured such that the mounting portion 104 is formed in the shape of a hole so that the heating hose 150 can be connected to the manifold flow path 142 of the manifold block 140 through the mounting portion 104 do.

At this time, the manifold flow path 142 may be composed of at least 2 to 6 depending on the gate point of the mold, but is not limited thereto.

The manifold block 140 is inserted into the tub 20 of the injector and directly connected to the nozzle unit 30 of the injector to distribute the resin to the heating hose 150, Gt; manifold < / RTI >

Here, it is needless to say that the heater 144, which keeps the temperature of the resin flowing into the manifold flow path 142 constant, may be embedded in the outer circumferential surface of the manifold block 140.

The manifold block 140 according to the first embodiment of the present invention is formed in a plate shape and fixedly coupled to the mounting portion 104 of the upper fixing plate 100 through a fixing bolt, The manifold block 140 is formed in a cylindrical shape and is connected to the heating hose 150 passing through the mounting portion 104 through the first fastening coupler 200 so that the volume of the manifold block 140 The entire thickness of the hot runner system can be further reduced, so that the effect of reducing the weight of the hot runner system can be further maximized.

Particularly, the hot runner system according to the second embodiment of the present invention minimizes the size of the manifold and prevents the generation of heat inside the hot runner through a structure directly connected to the nozzle unit 30 of the injector In addition, the temperature of the mold can be reduced to reduce the injection cycle time, and the power consumption of the hot runner system due to the heat source reduction can be reduced.

It is to be understood that the terms "comprises", "comprising", or "having" as used in the foregoing description mean that the constituent element can be implanted unless specifically stated to the contrary, And all terms including technical or scientific terms are to be construed as further including other elements unless the context clearly dictates otherwise as generally understood by one of ordinary skill in the art to which this invention belongs. Have the same meaning.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. . Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100 - phase fixing plate 110 - support block
120 - Support panel 130 - Reinforced plate
140 - Manifold block 150 - Heating hose
200 - first fastening coupler 210 - first fastening part
220 - Hose coupling part 300 - Screw nozzle
310 - Nozzle housing 320 - Nozzle heater
330 - Nozzle tip 340 - Union ring
400 - second fastening coupler 410 - second fastening part
420 - nozzle coupling portion

Claims (8)

A top stationary plate in which a nozzle locate is formed and in which a manifold block having a plurality of manifold flow paths formed therein is fastened;
A heating hose connected to the manifold flow path to move the resin;
A first fastening coupler connecting the manifold passage and the heating hose;
A screw nozzle to which the heating hose is coupled and discharges the resin to the gate side of the mold;
A second fastening coupler connecting the heating hose and the screw nozzle;
A support panel formed at a lower portion of the upper fixing plate to penetrate the screw nozzle and supporting a lower end of the second fastening coupler; And
A reinforcement plate provided at a lower portion of the support panel and supporting the screw nozzle so as to discharge the resin to the gate side of the mold;
To reduce the thickness of the hot runner system.
The method according to claim 1,
Wherein the upper fixing plate includes a plurality of fixing clips for fixing the wirings connected to the manifold block to the upper fixing plate.
The method according to claim 1,
A support block forming a space for mounting the first and second fastening couplers and the heating hose between the upper fixing plate and the support panel;
Wherein the first and second heat exchangers are further comprised of a plurality of heat exchangers.
The method according to claim 1,
Wherein the first fastening coupler includes a first fastening portion fastened to the manifold flow path and having a communication hole through which the resin is moved; And
A hose coupling portion having a coupling groove for coupling the heating hose to a lower portion of the first coupling portion;
The hot runner system of the flexible type.
The method according to claim 1,
The heating hose includes: a hose member connected to the manifold flow path to receive resin; And
A hose plunger for guiding the resin introduced to the hose member side toward the screw nozzle side;
The hot runner system of the flexible type.
The method of claim 5,
Wherein the hose member of the heating hose is made of a flexible material and is adjustable in length depending on the length and type of the screw nozzle.
The method according to claim 1,
Wherein the second fastening coupler comprises a second fastening part to which the heating hose is fastened and a nozzle fastening part to be coupled with the screw nozzle.
In a flexible type hot runner system,
A cylinder-shaped manifold block having a plurality of manifold passages formed by directly coupling with a nozzle portion of an injector to reduce an injection cycle time;
A heating hose connected to the manifold flow path to move the resin;
An upper fixing plate formed with a mounting portion through which the heating hose penetrates, the fixing plate being coupled to the base surface of the injector;
A screw nozzle to which the heating hose is coupled and discharges the resin to the gate side of the mold;
A first fastening coupler connecting the manifold passage and the heating hose;
A second fastening coupler connecting the heating hose and the screw nozzle;
A support panel formed at a lower portion of the upper fixing plate to penetrate the screw nozzle and supporting a lower end of the second fastening coupler; And
A reinforcement plate provided at a lower portion of the support panel and supporting the screw nozzle so as to discharge the resin to the gate side of the mold;
Wherein the hot runner system is configured to reduce the thickness of the hot runner system and reduce the power consumption due to the reduction of the heat source.

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