KR101656648B1 - Extrusion molding apparatus - Google Patents
Extrusion molding apparatus Download PDFInfo
- Publication number
- KR101656648B1 KR101656648B1 KR1020160095285A KR20160095285A KR101656648B1 KR 101656648 B1 KR101656648 B1 KR 101656648B1 KR 1020160095285 A KR1020160095285 A KR 1020160095285A KR 20160095285 A KR20160095285 A KR 20160095285A KR 101656648 B1 KR101656648 B1 KR 101656648B1
- Authority
- KR
- South Korea
- Prior art keywords
- extruded
- double
- mold body
- extrusion
- double extrusion
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/08—Dies or mandrels with section variable during extruding, e.g. for making tapered work; Controlling variation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/302—Extrusion nozzles or dies being adjustable, i.e. having adjustable exit sections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to an extrusion die apparatus capable of continuously producing a hollow tube having various inner diameters and outer diameters by extruding two types of extruded materials and extruded products of various shapes without hollows through a single die apparatus, And a first injection hole through which the first extruded material is injected is formed in one side of the outer circumferential surface of the mold body, and a hollow insertion portion which is fixedly coupled to the upper portion of the mold body and inserted into the mold body, An upper cover disposed above the upper cover so as to be movable up and down with reference to the upper cover and having an elongated insertion bar formed to protrude downward through the insertion guide tube of the upper cover And a hollow forming member having a conical shape so that the vertex pointed downward is formed at the lower end of the insertion rod, A lower cover fixed to the lower portion of the mold body and guiding the first extruded material injected into the first injection hole of the mold body to move downward through the inside of the mold body, And a second extrusion port which is threadedly coupled to a lower portion of the first extrusion material and injects a second extrusion material different from the first extrusion material and the second extrusion material to perform double extrusion.
Description
The present invention relates to an extrusion die apparatus capable of extruding two kinds of extruded materials to produce a hollow tube having various inner and outer diameters and an extruded product of various shapes having no hollow in a continuous manner through a single die apparatus.
In general, extrusion molding refers to a processing method in which a material for extrusion is put into a cylinder, a material is squeezed and melted, and extruded with an extrusion die (die) to form a molded product having a predetermined shape, followed by cooling and solidifying the product.
An apparatus for producing a product through the above-described extrusion molding method is referred to as an extrusion molding apparatus (extruder), and can be largely divided into a screw type and a non-screw type according to the extrusion principle. The non-screw type means extruding a material using a ram, a roller or a cam, and the screw type means extruding a material through a screw.
A screw extruder can be divided into a single shaft and multiple shafts. The extruding of a material by a single screw as it is called is called a short shaft, and when two or more screws are engaged, the material is extruded.
In principle, a single material is pushed out by an extrusion die to produce a molded article. In recent years, a double extrusion method has been used in which two kinds of materials are pushed together by an extrusion die to produce a molded article.
Whichever extrusion method is used, the injection material is squeezed, melted and pushed out to the extrusion mold to continuously produce the molded products of a certain shape. The products such as hollow tube, hose, gasket, packing and molding are mainly produced.
When various products having various shapes are to be extruded and manufactured as described above, there is a problem that separate extrusion dies must be provided for each shape. However, it is very difficult to have a separate extrusion mold corresponding to various shapes, such as a small company mainly focusing on order production of a small quantity of various kinds of products. Especially, it is difficult to provide a double extrusion In the case of a mold, there is a problem that it is expensive and expensive.
SUMMARY OF THE INVENTION It is an object of the present invention, which is devised to solve the problems as described above, to provide a method of extruding two kinds of extruded materials, thereby producing hollow tubes having various inner diameters and outer diameters, And to provide an extrusion mold apparatus capable of manufacturing an extrusion mold apparatus.
Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments with reference to the accompanying drawings.
In order to achieve the above object, an extrusion die apparatus according to the present invention comprises: a mold body having a vertically opened cylindrical shape and having a first injection hole through which a first extruded material is injected, An upper cover fixedly coupled to an upper portion of the body and having a hollow insertion guide tube projected downward to be inserted into the mold body; and a lower cover installed above the upper cover to be movable up and down with respect to the upper cover, An upper copper plate having a hollow insertion member formed to extend downwardly through the insertion guide pipe of the upper cover and having a conical hollow member so that a vertex thereof is directed downward at a lower end of the insertion rod, Wherein the first extruded material injected into the first injection hole of the mold body passes through the inside of the mold body And a second extrusion port which is detachably threadedly coupled to a lower portion of the lower cover and which is injected with a second extruded material different from the first extruded material and the first extruded material to perform double extrusion .
The upper copper plate has a pair of upper and lower movable holes vertically penetratingly formed on the inner circumferential surface so as to be symmetrical with each other and each lower end is coupled to the upper cover so as to be inserted into the upper and lower movable holes of the upper and lower copper plates, A pair of upper and lower adjustment bolts each having an opposite end extended upward and a plurality of upper and lower adjustment bolts each screwed to each of the upper and lower adjustment bolts to vertically move the upper and lower copper plates up and down, And further includes a vertical adjustment nut.
The lower cover includes a ring-shaped lower cover ring fixedly coupled to the lower portion of the metal body, and a lower portion of the ring-shaped lower cover ring fixedly coupled to the lower portion of the metal body. And a plurality of pushing bolts for pushing and fixing the upper circumferential surface of the work guide tube through the outer circumferential surfaces of the lower cover ring, respectively.
The upper and lower compartments are screwed to the lower portion of the lower cover with respect to the upper and lower compartments, and the upper and lower compartments are connected to the upper and lower compartments And a second injection hole through which the second extrusion material is injected is formed in a lower outer circumferential surface of the second extrusion fitting hole, A double extrusion die in which an annular secondary injection path is formed so as to communicate with a second injection hole of the double extrusion fixture and the secondary injection tube is formed so as to pass through the secondary injection path and connected to a part of the double extrusion window, Extrusion die is inserted into the lower part of the double extrusion fixing part in a ring shape so as not to be separated from the double extrusion part, It characterized in that it comprises an extrusion die which is fixed to the lower metal fitting.
The cross-sectional shape of the extruded product is determined according to the cross-sectional shape of the double extruded window of the double extruded die, and the cross-sectional shape of the extruded product to be double-extruded along the connected portion of the double- .
When the extruded product is to be manufactured in the form of a hollow tube, the extruded product is replaced with a double extrusion die having a circular cross-sectional shape corresponding to the outer diameter of the extruded product, Is intertwined with the inside of the circular cross section of the double extruded window while being moved up and down together to be adjusted according to the inner diameter size of the extruded product.
When the extruded product is to be manufactured in a shape that does not have a hollow shape, the double extrusion die may be replaced with the double extrusion die so as to match the sectional shape of the extruded product, The extruded product is extruded and manufactured in a sectional shape of the double extruded window so as not to interfere with the inside of the double extruded window cross section of the die.
The extrusion die apparatus according to the present invention can extensively extrude two types of extruded materials, and can continuously produce hollow tubes having various inner and outer diameters and extruded products of various shapes having no hollow through a single mold apparatus.
1 is a perspective view showing an embodiment of an extrusion die apparatus according to the present invention,
Figure 2 is an exploded perspective view of the embodiment of Figure 1,
FIGS. 3 and 4 are perspective views showing the operation of the upper copper plate of the embodiment of FIG. 1,
FIGS. 5 and 6 are perspective views showing a process of coupling the lower cover of the embodiment of FIG. 2,
FIG. 7 is a perspective view showing the double extrusion of the embodiment of FIG. 2,
FIG. 8 is a plan view showing a double extrusion die in the embodiment of FIG. 7,
FIGS. 9 and 10 are perspective views showing a process of joining a double extrusion port and an upper and lower copper plate when an extruded product is manufactured in a hollow tube shape,
11 is a cross-sectional view taken along the line A-A 'in the embodiment of FIG. 1,
12 is a cross-sectional view taken along the line B-B 'in the embodiment of FIG. 10,
FIGS. 13 and 14 are perspective views showing a process of replacing the double extrusion die and operating the upper and lower copper plates when the extruded product is to be manufactured in a shape having no hollow,
15 is a cross-sectional view taken along line C-C 'in Fig. 14.
Hereinafter, preferred embodiments of the extrusion die apparatus according to the present invention will be described in detail with reference to the accompanying drawings.
The extrusion mold apparatus according to the present invention includes a
As shown in FIGS. 1 and 2, the
1 to 4, the
The
The upper and
When the
The
That is, the
The
The
In order to inject the first extruded material M1 and the second extruded material M2 and to extrude the same, the
The double extrusion die 520 is opened upward and a
At this time, the extrusion die fitting 530 is formed in a ring shape so that the double extrusion die 520 is inserted into the lower portion of the double
Accordingly, the first extruded material M 1 is screwed to the lower portion of the
The first extruded material M 1 is pressed downward through the inside of the
That is, the cross-sectional shape of the extruded product P is determined according to the cross-sectional shape of the
7 to 12, when the extruded product P is manufactured in a hollow tube shape, the cross-sectional shape of the
13 to 15, when the extruded product P is to be manufactured in a shape that does not have a hollow shape, the double extrusion die 520 may be formed so as to match the sectional shape of the extruded product P The
As described above, the extrusion mold apparatus according to the present invention can extrude two types of extruded materials, and can produce hollow tubes having various inner and outer diameters and extruded products of various shapes without hollows through a single mold apparatus have.
The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.
M1: First extruded material
M2: Second extruded material
P: Extruded product
100: mold body 110: first injection hole
200: upper cover 210: insertion guide tube
300: Shanghai copper plate 310: Insertion rod
320: hollow forming member 330: up and down moving hole
340: Vertical adjustment bolt 350: Vertical adjustment nut
400: lower cover 410: lower coverring
420: material guide tube 430: compression bolt
500: Double extrusion hole 510: Double extrusion hole
511: upper and lower compartments jaws 512: second injection hole
520: Double extrusion die 521: Double extrusion window
522: Secondary injection channel 523: Secondary injection tube
530: extrusion die coupling
Claims (7)
An upper cover fixedly coupled to the upper portion of the mold body and having a hollow insertion guide tube protruded downward to be inserted into the mold body,
And an elongated insertion rod is formed to protrude downwardly through the insertion guide tube of the upper cover, and a vertex point is formed downward at the lower end of the insertion rod An upper copper plate joined to the hollow forming member in a conical shape so as to face the upper copper plate,
A lower cover fixed to the lower portion of the mold body and guiding the first extruded material injected into the first injection hole of the mold body to move downward through the inside of the mold body,
And a second extrusion port which is detachably threaded on the lower portion of the lower cover and which receives the first extruded material and a second extruded material different from the first extruded material and double extrudes the extruded material.
The upper copper plate,
A pair of upward and downward movement holes are formed in the inner circumferential surface so as to be symmetrical with each other,
A pair of upper and lower adjustment bolts each having a lower end coupled to the upper cover to be inserted into each of the upper and lower shift holes of the upper copper plate,
Further comprising a plurality of up-and-down adjusting nuts which are screw-coupled to each of the up-down adjusting bolts to vertically move the upper and lower copper plates while vertically moving the upper and lower adjusting bolts.
Wherein the lower cover comprises:
A ring-shaped lower cover ring fixedly coupled to the lower portion of the mold body,
A material guide tube having an upper portion inserted into and engaged with an inner side of the lower cover ring and having a lower portion formed with threads on an outer peripheral surface thereof protruding downward from the lower cover ring,
And a plurality of pushing bolts for pushing and fixing the upper circumferential surface of the work guide pipe through the outer circumferential surfaces of the lower cover ring, respectively.
The double-
Wherein an upper portion of the lower cover is screwed to a lower portion of the lower cover with respect to the upper and lower section jaws, A double extrusion fixture having a second injection hole through which an extruded material is injected,
An annular secondary injection path is formed on the outer circumference so as to communicate with a second injection hole of the double extrusion fixing device, A double extrusion die in which a secondary injection tube formed so as to pass through from the secondary injection path to the inside is connected to a part of the double extrusion window,
And an extrusion die coupling member fixedly coupled to a lower portion of the double extrusion fixing member so as to support the double extrusion die in a ring shape so as not to be separated from the double extrusion fixing member while being inserted into the lower portion of the double extrusion fixing member.
The double-
Wherein the cross-sectional shape of the extruded product is determined according to the cross-sectional shape of the double extrusion die of the double extrusion die, and the cross-sectional shape of the extruded product to be double-extruded varies depending on the connected portion of the secondary injection pipe and the double extrusion window. Device.
Wherein when the extruded product is to be manufactured in the form of a hollow tube, the extruded product is replaced with a double extrusion die having a circular cross-sectional shape so as to match the outer diameter of the extruded product, Wherein the extruded product is adjusted in accordance with the inner diameter of the extruded product by interfering with the inside of a circular cross section of the double extruded window while moving up and down.
Wherein when the extruded product is to be manufactured in a shape that does not have a hollow shape, the double extrusion die is changed to fit the sectional shape of the extruded product, the upper copper plate is raised, Wherein the extruded product is extruded and manufactured in a cross-sectional shape of the double extruded window so as not to interfere with the inner surface of the double extruded window.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020160095285A KR101656648B1 (en) | 2016-07-27 | 2016-07-27 | Extrusion molding apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020160095285A KR101656648B1 (en) | 2016-07-27 | 2016-07-27 | Extrusion molding apparatus |
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KR101656648B1 true KR101656648B1 (en) | 2016-09-09 |
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KR1020160095285A KR101656648B1 (en) | 2016-07-27 | 2016-07-27 | Extrusion molding apparatus |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6333115A (en) * | 1986-07-28 | 1988-02-12 | Kawasaki Steel Corp | Hot extrusion apparatus for metal pipe |
JPH01309950A (en) * | 1988-06-09 | 1989-12-14 | Furukawa Electric Co Ltd:The | Method and apparatus for manufacturing composite filament material |
KR20040003776A (en) * | 2002-07-04 | 2004-01-13 | 이강주 | Die for extruding machine |
-
2016
- 2016-07-27 KR KR1020160095285A patent/KR101656648B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6333115A (en) * | 1986-07-28 | 1988-02-12 | Kawasaki Steel Corp | Hot extrusion apparatus for metal pipe |
JPH01309950A (en) * | 1988-06-09 | 1989-12-14 | Furukawa Electric Co Ltd:The | Method and apparatus for manufacturing composite filament material |
KR20040003776A (en) * | 2002-07-04 | 2004-01-13 | 이강주 | Die for extruding machine |
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