KR200459988Y1

KR200459988Y1 - Insulation cover for barrel of injection machine

Info

Publication number: KR200459988Y1
Application number: KR2020110010867U
Authority: KR
Inventors: 유영호
Original assignee: 에너텍코리아(주)
Priority date: 2011-12-07
Filing date: 2011-12-07
Publication date: 2012-05-03

Abstract

The insulation cover for the barrel of the injection machine of the present invention surrounds the barrel of the injection machine in the form of a ring having an opening, and a body filled with a filler that can be flexibly bent therein; A wing coupled to the upper surface of the body to protrude upward; A tightening belt disposed on an outer surface of the body in a long axis direction, one end of which is coupled to the outer surface and formed longer than the length of the long axis of the body; An auxiliary cover having one end coupled to one end of the body to cover the other end of the body when the body surrounds the barrel; A plurality of bands coupled to the body at regular intervals, the upper and lower ends of which are coupled to each other so that the tightening band passes through the space between the upper and lower ends; And a fixing ring which is coupled to one end of the tightening belt, and the other end of the tightening belt is inserted into and fastened.
According to this, in manufacturing the product by injection molding or vacuum die casting processing, there is an effect that can minimize the release of thermal energy to the outside through the surface of the barrel. Therefore, as well as ensuring the quality of the product, there is an advantage that can be obtained economic benefits by reducing the electrical energy.

Description

Insulation cover for barrel of injection machine}

The present invention relates to an insulating cover for an injection molding machine barrel, and more particularly, is coupled to the surface of a barrel provided in an injection molding machine or a vacuum die casting device, thereby minimizing the loss of thermal energy emitted to the outside.

In particular, the present invention can be manufactured in a variable length to be applied to injection barrels of various diameters, and relates to an insulating cover for the injection barrels that can be used in various injection molding machines or vacuum die casting apparatus.

In general, injection processing or vacuum die casting process supplies plastic chips or magnesium chips to a hopper and moves them into the barrel of the melting furnace, and melts them into the liquid phase by applying thermal energy stepwise from the barrel to the nozzle part of the outlet. The product is manufactured by pressing injection into a shaped shape, removing and discharging the product from the mold, and cooling the product at room temperature.

The barrel, which is a melting furnace for melting plastic chips or magnesium chips, has a cylinder housing or a screw-type housing for transferring the dissolved liquid therein, and an electric heating heater surrounding the barrel is installed on the surface.

At this time, the electric heater installed in the barrel is determined the amount of heat generated in proportion to the capacity of the injection molding machine and the barrel size, and the number of installations for each injection molding machine will also vary.

As such, the thermal energy is supplied to the inside of the barrel by using the electric heater installed in the barrel.

On the other hand, the thermal energy supplied by the electric heater installed in the barrel is the highest in the initial process of supplying the chip, and gradually keeps the same or lower temperature gradually.

At this time, the surface temperature of the barrel is heated to 150 ° C to 490 ° C, but the heat energy emitted to the outside is also significant, which must be supplied to the inside of the barrel to continuously supply more heat energy than to melt the chip. In addition, this not only causes economic losses, but also due to changes in the working environment due to seasonal changes (change of ambient temperature), there is a problem in that the quality stability of the product cannot be secured.

Therefore, there is a need for a technique for maintaining a constant temperature in the barrel of the injection molding machine and minimizing thermal energy emitted to the outside of the barrel.

In order to solve such a problem, a technique of suppressing the release of thermal energy has recently been proposed by integrally forming a heat insulating layer in which a refractory stone and a steel cover are laminated on a barrel surface.

However, the refractory stone constituting the heat insulation layer is difficult to produce a thickness that can expect the heat insulation effect due to its own weight, it is impossible to maintain durability because the crack is generated when the continuous heat is applied. In addition, this may result in a safety accident such as heat is transferred to the surface of the steel cover to heat the steel cover, such as a worker being burned.

The present invention is proposed by the above-mentioned demands, and insulates the barrel surface of the injection molding machine or the vacuum die casting apparatus, thereby preventing the heat energy generated by the electric heater from being released to the outside, thereby preventing the loss of the heat energy supplied to the apparatus. It is an object to provide an insulating cover for an injection molding machine barrel that can be minimized.

In particular, it is an object of the present invention to provide an insulating cover for the barrel of the injection molding machine that can be installed in a variable length or diameter so as to be installed in a variety of injection molding machines or vacuum die casting apparatus.

In particular, the present invention can minimize the measurement error of the temperature sensor installed in the barrel, it is possible to precisely control the operation of the electric heater installed in the barrel, the insulation cover for the injection molding machine barrel which can improve the quality of the manufactured product The purpose is to provide.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

The insulation cover for the barrel of the injection machine of the present invention surrounds the barrel of the injection machine in the form of a ring having an opening, and a body filled with a filler that can be flexibly bent therein; A wing coupled to the upper surface of the body to protrude upward; A tightening belt disposed on an outer surface of the body in a long axis direction, one end of which is coupled to the outer surface and formed longer than the length of the long axis of the body; An auxiliary cover having one end coupled to one end of the body to cover the other end of the body when the body surrounds the barrel; A plurality of bands coupled to the body at regular intervals, the upper and lower ends of which are coupled to each other so that the tightening band passes through the space between the upper and lower ends; And a fixing ring which is coupled to one end of the tightening belt, and the other end of the tightening belt is inserted into and fastened.

The filler is preferably in the form of an air layer formed inside the airgel surrounded by a glass fiber wool or silica felt formed of a sheet in the form of cotton.

The airgel is preferably formed to a thickness within 15mm ~ 35mm.

In the case of plastic injection molding, the inner surface of the body in contact with the barrel is formed of silica fabric paper, the outer surface is formed of silicone coated resin fabric, and the upper and lower surfaces are made of Teflon coated resin fabric or a combination of Teflon coated resin fabric and silica fabric paper. And the wing and the auxiliary cover are formed of a Teflon-coated resin fabric, and the fastening band and the band cover are formed of a silicone coating resin fabric, and in the case of magnesium-based or vacuum die-casting injection molding, the barrel of the body The inner surface in contact with is formed of silica fabric paper, the outer surface is formed of Teflon coated resin fabric or plural layers of silica fabric paper, and the upper and lower surfaces are formed of a combination of plural layers of silica fabric paper or a combination of Teflon coated resin fabric and silica fabric paper, and the wings And the auxiliary cover, the fastening band and the band covering Is being coated with a Teflon resin and a silica fabric joined by silica jikmulji room hyeongtaeyi, the inner surface facing to the body is preferably arranged by silica jikmulji.

The body connects an upper surface, a lower surface spaced apart from the upper surface, and one end of the upper / lower surface to connect an inner surface contacting the barrel and the other end of the upper / lower surface when the body surrounds the barrel. The outer surface is spaced apart from the inner surface, the upper and lower surfaces are in the form of a plate-like ring with an opening to form a closed ring by contacting both ends, it is preferable to have the same curvature of the barrel.

According to the insulating cover for the injection molding machine barrel of the present invention, in manufacturing the product by injection molding or vacuum die casting processing, there is an effect that can minimize the heat energy is released to the outside through the surface of the barrel.

Therefore, as well as ensuring the quality of the product, there is an advantage that can be obtained economic benefits by reducing the electrical energy.

In addition, by blocking the heat emitted from the injection machine to lower the temperature around the workplace to a temperature similar to the human body temperature, there is an advantage that can greatly improve the working environment.

In particular, the present invention can minimize the measurement error of the temperature sensor due to the release of thermal energy, it is possible to precisely control the operation of the electric heater installed in the barrel, there is an advantage that can improve the quality of the product.

Thus, it is possible to improve the reliability and competitiveness of the apparatus and system for processing in injection molding or vacuum die casting processing, as well as to improve the quality of the products manufactured by the apparatus and system.

1 and 2 are perspective views schematically showing a front view and a rear view of the insulating cover for the injection molding machine barrel according to an embodiment of the present invention.
3 to 6 are perspective views sequentially showing the installation method of the heat insulating cover for the injection molding machine barrel according to FIGS. 1 and 2.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the heat insulating cover for the barrel of the present invention.

1 and 2 is a perspective view schematically showing the front and rear views of the insulator barrel insulation cover according to an embodiment of the present invention, Figures 3 to 6 is a thermal insulation for the injection machine barrel according to Figures 1 and 2 It is a perspective view which showed the installation method of a cover sequentially.

1 to 6, the heat insulating cover 100 for the injection molding machine barrel of the present invention is a body 110, a wing 140, a fastening band 160, an auxiliary cover 150, a band cover ( 170) and the fixing ring 180.

The body 110 is a part directly contacting the barrel of the injection molding machine and surrounding the outer circumferential surface thereof, and is filled with a filler that can be flexibly bent inside into an approximately ring shape having an opening.

That is, the ring-shaped body 110 may be bent in a direction in which both ends face each other to be in contact with each other to form a closed ring shape to surround the cylindrical barrel.

The body 110 connects the upper surface, the lower surface spaced apart from the upper surface by a predetermined interval, and one side of the upper and lower surfaces, and connects the inner surface 120 and the other side of the upper / lower surface which are in contact with the barrel surface when surrounding the barrel. The inner surface 120 may be formed of the outer surface 130 spaced apart.

Here, when the upper and lower surfaces are in contact with both ends in the form of a plate-shaped ring having an opening to form a closed ring, the upper and lower surfaces have the same curvature as the curvature of the barrel. Thus, when the body 110 is formed in a closed ring shape, the barrel It has the same curvature as

The reason why the body 110 is formed in a ring shape rather than a rectangular parallelepiped shape is to be in close contact with the barrel and the body 110 when the barrel is surrounded to remove a space from which heat can leak, thereby improving the thermal insulation effect, and the inner surface ( 120 may also improve the durability of the body 110 is formed of silica fabric paper.

The filler may be made of airgel and glass fiber-based wool or silica felt having a thickness within 15 ~ 35mm.

Here, the glass fiber-based wool is a glass fiber-based material is formed in the form of a cotton sheet, that is, a quilt, the silica felt is formed in a sheet type, that is in the form of a blanket, the filler is a glass fiber-based wool around the airgel It may be made in the form surrounded by silica felt.

The reason for enclosing the airgel with glass fiber wool or silica felt is that the airgel has the lowest thermal conductivity among the insulating materials, but it is a relatively hard material, so when used as a filler by itself, the state of contact with the barrel when surrounding the barrel Because of the disadvantages of non-uniformity, it is easy to enclose a cylindrical barrel by enclosing it with glass fiber wool or silica felt, which is a heat insulating material and a relatively flexible material while reducing the thickness of the airgel slightly.

In addition, when the filler is composed of airgel and glass fiber wool or silica felt, an air layer is formed in the space between the airgel and glass fiber wool or silica felt, and thus has an advantage of improving the thermal insulation effect than that of the airgel alone. It is possible to suppress dust generation, which is a disadvantage of airgel.

For example, the surface temperature of the barrel discharged from the plastic injection molding machine varies greatly depending on various conditions such as the year, method, and structure of the device, but the measurement results generally indicate 180 to 280 ° C. In the case of a magnesium injection machine or a magnesium vacuum die casting device, The barrel surface temperature is shown at 270-490 ° C.

Here, a barrel having a surface temperature of 280 ° C. is surrounded by an airgel and glass fiber wool or silica felt of approximately 20 mm thickness or a barrel having a surface temperature of 490 ° C. is formed of an airgel and glass fiber of approximately 30 mm thickness. The filler may be constructed with wool or silica felt to allow heat to be released to temperatures within approximately 40 ° C.

On the other hand, when surrounding the barrel by the body 110 as described above, in order to lower the temperature of the heat released from the barrel as well as the filler material to form the body 110 may also function as one.

To this end, in the plastic injection molding, the inner surface 120 of the body 110 is formed of a silica fabric paper, the outer surface 130 is formed of a silicone coated resin fabric, and the upper and lower surfaces thereof are a Teflon coated resin fabric or a Teflon resin coated silica fabric paper. Can be formed.

Here, the heat resistance decreases in the order of silica cloth paper, Teflon coated resin or silica cloth coated with Teflon resin, and silicone coated resin cloth.

The wing 140 is coupled to protrude upwards on the upper surface of the outer surface of the body 110, when the plurality of the body 110 surrounds the barrel in a row overlaps the body 110 disposed in front of the body 110 and It is possible to block heat from being released through the boundary portion of the body 110.

The tightening strip 160 is disposed in the long axis direction on the outer surface of the body 110, one end is coupled to the outer surface 130, and formed longer than the long axis length of the body 110 to surround the body 110 do.

The strip cover 170 is coupled to the body 110 at regular intervals, the upper and lower ends are coupled to form a space between the upper and lower ends to support the tightening belt 160 while passing through the tightening belt 160. do.

The auxiliary cover 150 is one end is coupled to one side end of the body 110, when the body 110 surrounds the barrel to cover the other end and the other end of the body 110, the middle of the barrel When the two ends of the body 110 are not contacted with each other by the temperature sensor provided in the middle, and the separation part 111 is formed, the auxiliary cover 150 may cover the separation part 111 to prevent heat release.

The fixing ring 180 is coupled to one end of the diaphragm 160, the diaphragm 160 surrounds the body 110 by one end, and then the other end is inserted and fastened to fix the barrel by the body 110. It is a part that can be kept fixed.

Here, the fixing ring 180 is coupled to the fixed frame 181 is coupled to one end of the tightening belt 160 and reciprocating in the fixing frame 181 so that the other end of the tightening belt 160 is inserted into the fixed frame and then coupled The sliding pin 182 may be formed.

On the other hand, the wing 140, the auxiliary cover 150, the tightening strip 160 and the strip cover 170 is also formed of a heat insulating material.

For example, in the case of plastic injection molding, the wing 140 and the auxiliary cover 150 may be formed of a Teflon coated resin fabric, and the diaphragm 160 and the band cover 170 may be formed of a silicone coated resin fabric. .

In the case of magnesium-based or vacuum die-casting injection molding, the wing 140, the auxiliary cover 150, the fastening band 160, and the band cover 170 are formed by combining a Teflon-coated resin fabric and a silica fabric paper by a silica thread. The inner surface opposite to the body 110 may be disposed of silica fabric.

According to the insulation cover 100 for the barrel of the injection molding machine as described above, in manufacturing the product by injection molding or vacuum die casting processing, there is an effect that can minimize the heat energy is released to the outside through the surface of the barrel.

100 ... heat insulation cover
110 ... body
111 ... Spacer
120 ... Inner Body
130 ... Body exterior
140 ... Wings
150 ... Auxiliary Cover
160 ... Fastener
170 ... Sash
180 ... fixed hook
181 ... fixing frame
182 ... sliding pin

Claims

A body surrounding a barrel of the injection molding machine having a ring shape having an opening, and filled with a filler that can be flexibly bent therein;
A wing coupled to the upper surface of the body to protrude upward;
A tightening belt disposed on an outer surface of the body in a long axis direction, one end of which is coupled to the outer surface and formed longer than the length of the long axis of the body;
An auxiliary cover having one end coupled to one end of the body to cover the other end of the body when the body surrounds the barrel;
A plurality of bands coupled to the body at regular intervals, the upper and lower ends of which are coupled to each other so that the tightening band passes through the space between the upper and lower ends; And
It is coupled to one end of the diaphragm, the other end of the diaphragm is fixed to the fixed ring is inserted and fixed; includes;
In the case of plastic injection molding, the inner surface of the body in contact with the barrel is formed of silica fabric paper, the outer surface is formed of silicone coated resin fabric, and the upper and lower surfaces are made of Teflon coated resin fabric or a combination of Teflon coated resin fabric and silica fabric paper. Is formed, the wing and the auxiliary cover is formed of Teflon-coated resin fabric, the tightening band and the band cover is formed of a silicone coating resin fabric,
In the case of magnesium-based or vacuum die-casting injection molding, the inner surface of the body in contact with the barrel is formed of silica fabric paper, the outer surface is formed of Teflon-coated resin fabric or plural layers of silica fabric paper, and the upper and lower surfaces of plural layers of silica fabric paper. Or formed of a combination of Teflon-coated resin fabric and silica fabric paper, wherein the wing, the auxiliary cover, the fastening band and the strip cover are in a form in which a Teflon-coated resin fabric and silica fabric paper are bonded by silica yarn, and the body The inner surface opposed to the heat insulating cover for the injection molding machine barrel, characterized in that arranged in a silica fabric paper.

The method according to claim 1,
The filler is an insulation cover for an injection molding machine barrel, characterized in that the air layer is formed inside the airgel surrounded by a glass fiber wool or silica felt formed of a sheet in the form of cotton.

delete

The method according to claim 1,
The body connects an upper surface, a lower surface spaced apart from the upper surface, and one end of the upper / lower surface to connect an inner surface contacting the barrel and the other end of the upper / lower surface when the body surrounds the barrel. It is made of an outer surface spaced apart from the inner surface, wherein the upper and lower surfaces are in the form of a plate-shaped ring having an opening to form a closed ring by contacting both ends, the barrel of the injection molding machine, characterized in that it has the same curvature of the barrel Insulation cover for