KR100856755B1 - The Mold for catapulting and molding insert cloth - Google Patents

Abstract

The present invention is connected to a resin feeder (not shown), the resin inlet 10 for injecting resin therein, and the resin inlet pipe 11 connected to the resin inlet 10 and installed so that the resin is supplied horizontally in the apparatus. ), A heater 13 installed around the resin injection pipe and provided with a heating wire, an air injection pipe 15 connected to one side of the resin injection pipe 11 horizontally connected to the mold, and the air injection pipe 15 Injecting part (1) consisting of an air valve 120 installed on one side of the middle), and is located above the injection part (1), is connected by a resin injection pipe 11 and the heater 13, the upper First, second and third resin injection valves 110, 140, and 150 installed on one side of the resin injection pipe 11 connected to each other, and the upper injection nozzles 16 of the plate shape are installed at the end of the resin injection pipe 11 of the upper portion. Injection part upper portion (1-1) composed of a), the first mold (2) provided on one side of the injection portion (1), and on one side of the first mold (2) Value is related to a fabric insert consisting of two mold 4 forming apparatus and a forming method which is formed by moving from side to side. .

Injection molding. Extrusion. Brow molding. Thousand insert molding.

Description

Cloth insert molding apparatus and its molding method {The Mold for catapulting and molding insert cloth}

1 is a general view of the cloth insert molding apparatus of the present invention

2 is a state diagram for forming the first insert molding apparatus of the present invention

3 is a state diagram for forming the second insert molding apparatus of the present invention

4 is a detailed view inside the cloth insert molding apparatus of the present invention

Figure 5 is a cloth insert molding apparatus upper injection section upper side cross-sectional detail of the present invention

6 is a cross-sectional view of the inside and the upper injection portion of the cloth insert molding apparatus of the present invention

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7 is another example of the cloth insert molding apparatus upper injection portion of the present invention

8 is a jig example of the cloth insert molding apparatus of the present invention

     <Description of the Drawings>

Injection part 1, injection part upper part 1-1, 1st mold 2, 1st mold and 2nd mold inner part 3, 5, 2nd mold 4, resin inlet 10, water Strut inlet (11), heater (13), air inlet (14), air inlet (15), upper injection nozzle (16), roller (17), jig (18), ceiling fixing pin (25, 25 ', 45,45 '), blades (218,218'), blade springs (219,219 ') , mold pattern recess 31, second mold fixing part 41, first, second, third resin injection valves 110, 140,150), air valve 120, cloth (300,300 ').

The present invention is one of the apparatus for manufacturing automotive interior materials, the first mold and the first mold extrusion, injection and brow molding at the same time the skin material (leather, artificial leather, non-woven fabric, cloth, synthetic resin sheet and film, etc.) A cloth insert molding apparatus for adhering to an exterior of a molded article, and a molding method thereof.

In general, molded products manufactured by injection molding while inserting cloth are mainly used as interior materials for automobiles, such as door trims, fillers, trunk mats, package trims, and headliners.These are commonly used according to low-priced national cars, small cars, and medium and large luxury cars. The interior material may be said to be different in material and composition from each other.

In other words, it is possible to use interior materials that are injection-molded only with synthetic resin, or interior materials with a part of a soft cloth (skin material) attached to the surface of synthetic resin.Other models can be bonded to the entire surface of the substrate. using that the one or trimming with, or is sometimes used that was then adhered to the fabric in the advanced resin surface wrapped around the rim to the base cloth adhered to the inner surface the better the texture.

Looking at the general manufacturing method of the automotive interior materials, the method of attaching the cloth after the injection molding of the automotive interior material is a method of manually attaching to the exterior of the automotive interior material by adhesive, and after the first injection molding, the fabric is laminated on the molding surface Later, there is a method of injection molding again, and a method of manufacturing a vehicle interior material with fabric attached at the same time by embedding the cloth, but in the first case, it is uneconomical by hand, and in the second case, the quality is good but the injection molding should be done twice. In the third case, there are injection high and low pressure injection method and high pressure injection method. Among them, low pressure injection method is low pressure when injecting the injection liquid, while high pressure is used to mold the substrate by pressing the cloth into the mold. This is necessary.

This low pressure injection method has high productivity because the molding of automobile interior material and the adhesion of cloth are performed at the same time. However, when the skin surface of the cloth is fabric or non-woven fabric, the interior material that has many angled step parts in the product has a high-pressure press pressure. There is a problem that the injection liquid is soaked out on the surface of the cloth by the high pressure when pressed to the upper mold to solve this problem.

For example, Korea Patent Publication No. 10-0334118 No. 10-0334118 after performing the first process of injection molding the substrate with a set of upper and lower molds, the injection heat is significantly remaining in the injection-molded substrate state When the upper mold is opened and the skin material is supplied and bonded, the edge side of the base material is partially pushed down and the thickness is corrected so that the foam layer of the skin material is adhered without being damaged. It describes a method for forming a car interior material and its molding apparatus that are produced by dividing the surface of the surface of the base material into a product that does not need to be wrapped around the bottom surface of the base material or by curing it by curing it by being buried on the bottom of the surface material.

[0007] The Japanese Laid-Open Patent Publication No. 10-0329428 applies the sibling layer to the inner surface of the first mold or the second mold, and mounts the surface pattern member on which the pattern for surface processing of the synthetic resin molding is formed. And molding the synthetic resin molding by sealing the first or second mold on which the surface pattern member is placed, and injecting a synthetic resin support material, and forming the synthetic resin molding on the surface pattern member adhered to the surface of the molded synthetic resin molding. And a surface of the surface pattern member in contact with the release agent layer, wherein an adhesive or a release agent is applied to the surface pattern member so that the surface pattern member is attached to or separated from the surface of the synthetic resin molding. The method of forming the surface pattern of the synthetic resin molding expressed on the surface of the synthetic resin molding is described. And

Publication No. 0164016 discloses that a decorative pattern sheet is sandwiched between a mold having a hole formed therein and a pair of molds having an injection hole facing each other, and the decorative pattern sheet is heated and softened by a heating apparatus, and the decorative pattern sheet is heated. To make a tight contact with the cavity surface of the mold on the basis of the pressure difference generated by the exhaust of the mold through the hole, and into the mold through the inlet for molding the molten resin into a patterned product on the basis of the decorative pattern sheet. A heating apparatus is provided for use in a method of simultaneously injecting injection molding and a patterning method, wherein the heating apparatus comprises a heating element for supplying heat to the decorative pattern sheet and a heating pattern for heating and softening the decorative pattern sheet. The heating position facing the sheet, and the heating body is separated from the space between the At the same time as the injection molding consisting of heating body moving means for moving the heating body in a non-parallel position relationship between the heating position and the non-intense position, the heating surface of the heating element is moved between non-intensity positions which are moved far away. Apparatus and methods for forming are described,

Publication No. 10-0226301 discloses a step of supplying a skin material between a pair of molds, between a skin material holding frame movable in a direction perpendicular to the mold closing direction and a skin support frame moving in the mold closing direction. Maintaining the skin material, supplying a predetermined thermoplastic melt, and closing the mold to form a multilayer molded article, wherein at least one movable member movable forward and backward in the mold closing direction is formed on the mold surface. After the supply of the resin melt is retracted in the mold blocking direction and at least one ejector is ejected on the skin material holding frame to fold the edge of the skin material toward the center of the mold, the movable member to the mold surface The manufacturing method of the multilayer molded article which folds and forms the edge of a skin material by the back part of a resin body part is described,

Korean Patent Publication No. 1997-0009920 supplies a fabric skin material between two molding dies before molding, fixing the edges of the fabric skin material, and then heating the cavity formed on one side of the fabric skin material. A method of manufacturing automotive interior parts is disclosed, which comprises a process of supplying a resin material in a molten state, completely closing the two molding dies, and integrally compressing the resin material and the fabric skin material to cool and solidify them.

Korean Laid-Open Patent Publication No. 2001-0073714 is provided with a liftable variable type upper and lower molds of which the forming surface is limited to a size capable of molding the planar portion of the substrate, and an auxiliary mold for forming the side edges of the substrate on the upper mold. It describes a molding method of a car interior material and its molding apparatus that work with the gap is corrected in the injection molding process of the substrate and the bonding process of the skin material

Japanese Patent Laid-Open Publication No. 2001-0104019 discloses a lower mold having a recessed portion formed on a molding surface for forming a rib having a predetermined thickness from a base bottom, and a pair of first upper molds separated by a boundary between the positions of the recessed portions of the lower mold. And a second insert mold and an insert rod for forming a rim insert groove of the skin material on the rib, and inserting the skin material into the insertion groove while being variably protruded by a cylinder on the forming surface between the second mold and the twelfth mold. Bonding device and joining method of the base material for automobile interior and the skin material composed of the cylinder itself for elevating and the cylinder for elevating the first upper mold separately from the second upper mold,

Published Patent Publication No. 2003-0004885 discloses a high pressure in which a skin material is introduced after a step of spraying water on the surface of the skin material before the skin material input step, and the pressing bonding process and the cooling process are performed while the moisture is blocked by the injection heat. Although injection molding method is described,

Conventional techniques as described above are complicated processes, it is difficult to adhere the cloth to a certain shape on the synthetic resin surface produced by the conventional injection method, and even if the wrinkles on the skin layer of the fabric formed on the surface of the synthetic resin It is formed, or the embossing is generated, the quality is lowered, the thickness of the resin layer during the pressing process is also difficult to make constant, there has been a problem that the fabric is easily detached after a certain period of time.

The present invention is to solve the problems described above, the patent application No. 10-2003-14011, 10-2003-73301 and 10-2005-19077, the applicant filed before the injection of the invention As an improvement of the molding method and the apparatus,

The fabric is inserted into the first mold 2 and the second mold 4 by inserting the fabrics 300 and 300 ' , the second mold 4 is first advanced to the first mold 2 , and the resin is injected from the top to extrude the mold. And second advancing, extrusion molding and resin injection at the top of the first mold (2) and the side of the first mold (2) for injection molding, or injection of air from the side for brow molding; At the same time, it is a technical object of the present invention to provide a cloth insert molding apparatus and a method of molding the cloth is adhered to the surface of the molded product, the cloth is inserted.

In order to achieve the above object, the present invention is connected to a resin feeder (not shown) and the resin inlet 10 for injecting resin therein, and the resin inlet 10 is connected to the resin in the upper and horizontal apparatus A resin injection pipe 11 installed to be supplied, a heater 13 installed around the resin injection pipe and provided with a heating wire, and an air injection pipe 15 connected to one side of the resin injection pipe 11 horizontally connected to the mold. And, the injection portion (1) consisting of an air valve 120 is installed on the middle one side of the air injection pipe 15, and is located above the injection portion 1, the resin injection pipe 11 and the heater 13 The first, second, and third resin injection valves 110, 140, and 150 installed at one side of the resin injection pipe 11 connected to the upper part and installed at the end of the resin injection pipe 11 at the upper part thereof. And an injection part upper part 1-1 formed of a plate-shaped upper injection nozzle 16 and a first part installed on one side of the injection part 1. The present invention relates to a cloth insert molding apparatus comprising a mold (2) and a second mold (4) which is installed on one side of the first mold (2) and is molded by being moved forward and backward from side to side.

According to the present invention, after the second mold 4 into which the cloth 300 is inserted is first advanced in the direction of the first mold 2 , the resin is first supplied by extrusion molding, and then the second mold 4 is first made. After advancing to the first mold (2) for the second time, after the second extrusion molding, the resin supply is stopped, and the air is supplied into the mold, and the brow molding is performed to form a large number of irregular air through holes, and then the second mold (4 ) By pressing the first mold (2) , compression molding, or

After the second mold 4 into which the cloth 300 is inserted is first advanced in the direction of the first mold 2 , the resin is firstly extruded by supplying the resin, and then the second mold is extruded by resupplying the resin. Second injection of the second mold 4 to the first mold 2, injection molding by injecting resin from the side, the resin supply is stopped, and air is supplied into the mold to form a large number of irregular air through holes The present invention relates to a cloth insert device and a molding method thereof, which are invented to be manufactured by brow molding.

 According to the present invention, the second resin injection valve 140 is a three-way valve, the first opening of which is closed at the bottom and goes straight through, and the second opening of the second opening is closed, opened at the bottom and penetrated downward, and the sealing is straight. In this case, a conventional three-way valve having a structure in which all of the lower parts are closed is used.

In addition, fabric fixing pins 25, 25 ', 45, and 45' are fixed to the first mold and the second mold inner parts 3 and 5, and the fabric fixing pins 25, 25 ', 45,45 ') is fixed to the spring so that the fabric (300,300') is desired to be heat-sealed to the product during injection molding, in particular, even if the cloth (300 ') is inserted into the first mold (2) , Resin is introduced into the inside through the nozzle, the resin injection pipe 11 and the cloth (300, 300 ') penetrated horizontally, and air is also allowed to penetrate into the mold through the cloth (300,300') .

  The second valve 140 installed in the upper portion of the injection portion is a three-way valve, the first opening of the lower part is closed to pass straight, and the second opening is a straight discharge port is closed, the lower part is opened, so that the lower part is normally passed through It was used as a three-way valve of.

  In addition, when the pipe to be injected alternately resin and air is clogged, the solvent is injected to clean the injection pipe and the mold, such cleaning is a technique widely used in the art will not be described in detail.

At this time, the first mold and the second mold interior (3,5) thousand (300,300 ') on one side or both sides of the cloth by supplying, fabric fasteners (25,25', 45,45 '), (300,300 as needed After fixing the ') , after molding in the same manner as above, the blade (218,218') is operated by the blade springs (219,219 ') installed on one side of the first mold inner (3) to clean the fabric to manufacture the product. will be.

Hereinafter, the present invention will be described in detail with reference to Examples.

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Example 2 (Extrusion, Injection, Blow Molding)

First process (primary extrusion molding)

A first mold and a second mold interior (3,5), by supplying, cloth fasteners (25,25 thousand (300,300), one side or on both sides, 45,45 ') after the fixing (300,300 thousand) in " After the second mold 4 is first moved to the first mold 2 to operate the heater 13 and the resin feeder (not shown), the resin inlet 10 and the resin injection pipe 11 may be used. The resin to be moved is smoothly moved without being solidified by the heater 13. In this case, the resin is automatically closed in the air valve 120 of the air injection pipe 15 connected to one side of the resin injection pipe 11. The supply pressure is increased to operate the second resin injection valve 140 installed on one side of the resin inlet pipe 11 connected to the injection part upper part 1-1 so that the lower part can go straight in a closed state, and the third resin is injected. Resin introduced into the valve 150 is a plate-shaped upper injection nozzle 16 provided at the end of the injection portion upper portion (1-1 ) and two rollers 17 provided on the left and right sides of the upper injection nozzle (16). After the resin is injected into the mold through the primary molding,

Second Process (Secondary Extrusion Molding)

The upper part of the plate shape installed at the end of the injection part upper part 1-1 by the operation of the 2nd resin injection valve 140 and closing | operating the 3rd resin injection valve 150 installed in one side of the resin injection pipe 11, and closing it. Resin is injected into the mold through the two rollers 17 installed on the left and right sides of the injection nozzle 16 and the upper injection nozzle 16 to perform secondary molding.

3rd process (injection process)

The second mold 4 is moved to the first mold 2 secondly and brought into close contact with the first mold 2, and then

When the first resin injection valve 110 is opened and resin is injected into the mold through another resin injection pipe 11 horizontally connected to the resin injection port 10, the resin is formed on the cloth (1) inside the first mold 3. 300 ' ) is injected into the mold and injection molded,

4th process (Brow molding)

  Close the first, second and third resin injection valves 110, 140 and 150 provided in the injection section 1 and the injection section upper portion 1-1, open the air valve 120 to inject air into the mold, and After molding,

5th process (finishing process)

Close the air valve 120 to form a plurality of air through holes,

A second mold (4) a first die (2) desorbed sikidoe first mold interior (3) the blade is installed on one side of the spring (219 219 ') is (are working blades 218 218) by the "projecting into the product external to the cloth ( 300, 300 ') was prepared by detaching the molded product.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall view of the cloth insert molding apparatus of the present invention, FIG. 2 is a state diagram of the first fabric insert molding apparatus of the present invention, and FIG. 3 is a state diagram of the second fabric insert molding apparatus of the present invention. 5 is a detailed cross-sectional view of the upper part of the insert inserting apparatus of the present invention , FIG. 6 is a detailed cross-sectional view of the inside of the insert inserting apparatus of the present invention, and FIG . Another example of the upper part of the molding apparatus injection molding, Fig. 8 shows an example of a jig of the cloth insert molding apparatus of the present invention, the injection unit (1), the injection unit upper portion (1-1), the first mold (2), the first mold And the second mold interior (3, 5), the second mold (4), the resin inlet (10), the resin inlet tube (11), the heater (13), the air inlet (14), the air inlet tube (15), the upper part Injection nozzle (16), roller (17), jig (18), fabric fixing pin (25, 25 ', 45, 45'), blade (218, 218 '), blade spring (219 , 219') , mold pattern groove (31) ), The second mold fixing part (41), the first, 2, it can be seen that the third resin showing an injection valve (110, 140,150), the air valve 120, a thousand (300,300 ').

Looking at the structure, as shown in Figures 1 to 6, the resin inlet 10 is connected to the resin feeder (not shown) to inject the resin and the resin inlet 10 is connected to the resin in the device Resin injection pipe 11 installed to be supplied in the upper and horizontal, the heater 13 is installed around the resin injection pipe and provided with a heating wire, and the air injection connected to one side of the resin injection pipe 11 connected horizontally to the mold An injection unit (1) consisting of a pipe (15), an air valve (120) installed on one side of the air injection pipe (15),

Located in the upper portion of the injection unit 1, connected by the resin injection pipe 11 and the heater 13, the first, second, third installed on one side of the resin injection pipe 11 connected to the upper Resin injection valves (110, 140, 150), the upper end of the resin injection pipe 11, the injection portion upper portion for injecting resin into the mold, and the first mold (1) installed on one side of the injection portion ( 2) and the structure of the cloth insert molding apparatus including the second mold 4 installed on one side of the first mold 2 and moved to the left and right to be molded.

The injection part upper part 1-1 is installed at the end of the resin injection pipe 11 of the upper part, and has a plate-shaped upper injection nozzle 16 and two rollers 17 provided on the left and right sides of the upper injection nozzle 16. ),

The first mold and the second mold inner (3,5) is fixed at the top and bottom when inserting the cloth, the spring fixing pin (25, 25 ', 45, 45') with a spring at the rear, the first mold and the second A mold pattern recess 31 formed in the mold inner parts 3 and 5,

  It is composed of blades 218 and 218 'installed at the upper and lower ends of the first mold inner part 3 to cut the fabric after the cloth insert, and blade springs 219 and 219' installed behind the blades 218 and 218 '. The air inlet 14 of the pipe 15 is connected to the compressor.

In addition, a conventional cooling device (not shown) may be additionally formed inside the first mold and the second mold 3 and 5 to protect the upper injection nozzle 16 from heat generated during resin injection. It can be selectively formed and used according to the resin injection amount.

Figure 7 shows another example of the cloth insert molding apparatus upper injection portion of the present invention.

8 shows a jig 18, which is provided near the upper injection nozzle 16 and is a kind of nozzle apparatus for smoothing the brow molding.

Located in the upper portion of the injection unit 1, connected by the resin injection pipe 11 and the heater 13, the first, second, third resin installed on one side of the resin injection pipe 11 connected to the upper It can be seen that the injection valve 110, 140, 150, and other injection portion upper portion composed of a circular donut-shaped jig 18 provided at the end of the resin injection pipe 11 of the upper portion.

As described above, the present invention allows extrusion and injection molding and brow molding in one device to simultaneously mold a product having a complicated structure so as to be inserted into a transition surface, and at the same time the skin material (leather, artificial leather, nonwoven fabric, cloth, Synthetic resin sheet, film, etc.) can be adhered to the outside of injection molded products to reduce cost and quality of molded products, and to reduce the cost of products or reduce the damage caused by air pollution during work because no bond is required during molding. It can be reduced, the installation space is reduced, and the quality is improved economically, the cloth is easily removed after a certain time.

Claims (5)

In the cloth insert molding apparatus, A resin inlet 10 connected to a resin feeder (not shown) for injecting resin into the inside, a resin inlet pipe 11 connected to the resin inlet 10 so that the resin is supplied horizontally and horizontally in the apparatus; and a heater 13 is provided and arranged around the can holding the admission 11 in a heated, the first mold 2 and the air inlet tube 15 connected to one side of the number of connected horizontally holding the admission 11, wherein An injection unit 1 composed of an air valve 120 installed at an intermediate side of the air injection pipe 15; Located in the upper portion of the injection unit 1, connected by the resin injection pipe 11 and the heater 13, the first, second, third resin installed on one side of the resin injection pipe 11 connected to the upper Injection valves (110, 140, 150), the upper end of the resin injection pipe 11 is provided on the injection portion upper portion (1-1) for injecting resin into the mold , and one side of the injection portion (1) A first mold 2 and a second mold 4 installed on one side of the first mold 2 to be moved left and right and molded.   The injection part upper part 1-1 is installed at the end of the resin injection pipe 11 of the upper part, and has a plate-shaped upper injection nozzle 16 and two rollers 17 provided on the left and right sides of the upper injection nozzle 16. Cloth insert molding apparatus comprising a). The method of claim 1, wherein the first mold and the second mold inner (3, 5) is fixed to the top and bottom when inserting the cloth, the spring fixing pins 25, 25 ', 45, 45' with a spring, Blade pattern grooves 31 formed in the first mold and the second mold inner parts 3 and 5 and blades for cutting the cloth 300 and 300 ' after the cloth inserts are installed at upper and lower ends of the first mold inner part 3 ( 218,218 ') and blade springs (219,219') installed behind the blades (218,218 '). delete delete In the cloth insert molding method, First process (primary extrusion molding) A first mold and a second mold interior (3,5), by supplying, cloth fasteners (25,25 thousand (300,300), one side or on both sides, 45,45 ') after the fixing (300,300 thousand) in " After the second mold 4 is first moved to the first mold 2 to operate the heater 13 and the resin feeder (not shown), the resin inlet 10 and the resin injection pipe 11 may be used. The resin to be moved is smoothly moved without being solidified by the heater 13. In this case, the resin is automatically closed in the air valve 120 of the air injection pipe 15 connected to one side of the resin injection pipe 11. The supply pressure is increased to operate the second resin injection valve 140 installed on one side of the resin inlet pipe 11 connected to the injection part upper part 1-1 so that the lower part can go straight in a closed state, and the third resin is injected. Resin introduced into the valve 150 is a plate-shaped upper injection nozzle 16 provided at the end of the injection portion upper portion (1-1 ) and two rollers 17 provided on the left and right sides of the upper injection nozzle (16). After the resin is injected into the mold through the primary molding, Second Process (Secondary Extrusion Molding) The upper part of the plate shape installed at the end of the injection part upper part 1-1 by the operation of the 2nd resin injection valve 140 and closing | operating the 3rd resin injection valve 150 installed in one side of the resin injection pipe 11, and closing it. Resin is injected into the mold through the two rollers 17 installed on the left and right sides of the injection nozzle 16 and the upper injection nozzle 16 to perform secondary molding. 3rd process (injection process) The second mold 4 is moved to the first mold 2 secondly and brought into close contact with the first mold 2, and then The first resin opens the injection valve 110, a resin injection hole 10 and when the horizontal other can injecting resin through a holding admission 11 to the mold interior connected to, resins cloth provided on the first mold interior (3) ( 300 ') and flows into the mold and is injection molded. 4th process (Brow molding)   Close the first, second and third resin injection valves 110, 140 and 150 provided in the injection section 1 and the injection section upper portion 1-1, open the air valve 120 to inject air into the mold, and After molding, 5th process (finishing process) The air valve 120 is closed to form a plurality of air through-holes, and the second mold 4 is detached from the first mold 2, and the blade springs 219 and 219 'installed at one side of the first mold inner part 3 are removed . The method of forming a cloth insert, characterized in that the blades (218, 218 ') is operated to organize the fabric (300,300') protruding out of the product.

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