KR100790794B1 - The method for manufacturing and apparatus for catapulting and molding insert cloth - Google Patents

Abstract

The present invention provides an upper mold (2) having an upper first mold (30) and an upper second mold (100) in the upper and lower portions, an upper mold rotating device (38) installed at the front outside of the upper mold (2), An upper mold forward and backward rod 32 connected to the upper mold rotating device 38, and an upper mold support connected to an upper end of the upper mold forward and backward rod 32, and installed on the upper mold 2 ( 200 , the lower mold fixing portion (3), the lower mold fixing portion (4) formed on the upper portion of the lower mold fixing portion (3), and the lower side moving mold (2) 4 ') by using the device consisting of the lower mold (1), by advancing the upper mold forward and backward rod rod 32 connected to the upper mold support 200 installed on the upper mold (2) , the upper second mold ( 100) and the lower mold (1), the injection molding, and then the upper mold forward and backward connected with the upper mold support 200 installed on the upper mold (2) The rod rod 32 is reversed and detached, and then the upper mold 2 is rotated, and then the upper first mold 30 and the upper first mold side slide 33 of the transition-inserted upper mold 2 are removed. The present invention relates to a multi-injection molding method and apparatus in which a cloth is uniformly and smoothly adhered (coated) to a surface of an injection-molded product, and then the fabric is inserted to detach the product with a mil pin of the lower mold 1.

Injection molding. insert. Thousand insert injection molding. Molding method. Molding equipment

Description

The method for manufacturing and apparatus for catapulting and molding insert cloth}

1 is a front detail view of the molds of the present invention opened;

Figure 2 is a detailed side view injected by the upper second mold of the present invention

Figure 3 is a front detail view injected by the upper second mold of the present invention

Figure 4 is a front view in which the upper mold of the present invention is rotated

5 is a front detail view of a transition insert by the upper first mold of the present invention;

Figure 6 is a detailed front view of the molded article taken out from the mold of the present invention

<Description of the Drawings>

Lower mold (1), upper mold (2), lower mold fixing part (3), lower fixing mold (4), lower side movable mold (4 '), lower upper sealing plate (5), lower lower sealing plate (6), Hydraulic cylinder support (7), lower side movable cylinder (8), resin inlet (9), up and down hydraulic cylinder (10), locking block groove (11), nozzle (16), upper mold inner upper part (21) , insert cloth Fixing pin 23, fixing pin spring 24, upper first mold 30, upper mold left and right portions 31, 31 ', upper mold forward and backward rod 32, upper first mold side slide 33 , Upper first mold side spring 34 , locking block 35 , upper first mold side slide bolt 37 , upper mold rotating device 38, upper first mold central side portion 39 , upper second mold 100, the pin (41), the upper mold support 200, the upper support center portion 201 , the chain drive motor 250, the gear 251, chain 380, α: upper mold side slide movement interval.

The present invention is one of the apparatus for manufacturing automotive interior materials, the injection molding into the upper mold and the lower mold with one device and two molds installed at the same time the skin material (leather, artificial leather, nonwoven fabric, cloth, synthetic resin sheet and film) The present invention relates to a multi-injection molding method and a device in which a cloth is attached to the outside of the injection-molded article.

In general, molded products manufactured by injection molding while inserting a cloth are mainly used as interior materials for automobiles, such as door trims, fillers, trunk mats, package trays, and headliners, and 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. In order to use the trimmed together, or to improve the feel of the material, a high-quality cloth is attached to the synthetic resin surface, and then the edge of the cloth is wrapped around the inside of the substrate and then used.

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 is good because the interior molding of the car and the adhesion of the fabric are made at the same time. However, if the surface skin paper material is a woven fabric or a non-woven fabric, the interior material having a lot of angled step parts in the product has a high-pressure press pressure as described above. When pressed, there is a problem that the injection liquid comes out on the cloth surface due to high pressure, and there have been many studies 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.

Publication No. 10-0329428, a release agent layer is applied to the inner surface of the first mold or the second mold, and the surface pattern member on which the pattern for surface processing of the synthetic resin molding is formed is placed on the release agent layer. And sealing the first or second mold on which the surface pattern member is placed, injecting a synthetic support material to mold the synthetic resin molding, wherein the surface pattern member adhered to the surface of the molded synthetic resin molding is formed from the synthetic resin molding. And a step of separating the surface pattern member in contact with the release agent layer and applying an adhesive or a release agent so that the surface pattern member is attached to or separated from the surface of the synthetic resin molding. A method of forming a surface pattern of a 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 positional relationship between the heating position and the non-intensity 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 an elevating variable type of upper and lower molds whose shape is limited to a size capable of forming a flat portion of the substrate, and an auxiliary mold for forming 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 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 The molding method and its apparatus are improved, and upper and lower molds are provided in the upper mold 2 having the center portion moved up and down (front and rear) , and the fabric is guided by a conventional Robert to the lower part of the upper first mold. And, in accordance with the lower mold upper upper mold 100 installed on the lower first injection molding the first shape using the upper second mold and the lower mold, after detaching, and then rotating the upper mold (2), After matching the upper first mold with the lower mold, the fabric is lowered (advanced) and the fabric is adhered to the surface of the injection molded product formed on the lower mold by lowering the upper first mold 30. Skin material on the surface of injection molded product To provide a (coated) a multi-injection molding method and apparatus which is the transition insert, which is the object of the present invention.

In order to achieve the above object, the present invention provides an upper mold (2) provided with an upper first mold (30) and an upper second mold (100) at the upper and lower portions, and an upper portion installed at the front outer side of the upper mold (2). A mold rotating device 38, an upper mold forward and backward rod rod 32 connected to the upper mold rotary device 38, and an upper end portion of the upper mold forward and backward rod rod 32, the upper mold (2) An upper mold support 200 installed at an upper portion of the upper mold 2 and a lower fixing mold 3 and a lower fixing mold 4 formed at an upper portion of the lower mold fixing portion 3. And a lower mold 1 formed of a lower side movable mold 4 ', and an upper first mold side slide forming a lower one side of the upper first mold 30 installed on the upper mold 2. 33) and using the apparatus composed of upper mold left and right portions 31 and 31 ' forming left and right sides of the upper first mold 30, Advance the upper mold forward and backward rod rod 32 connected to the upper mold support 200 installed in the upper , by injection molding using the upper second mold 100 and the lower mold (1), then the upper mold (2) The upper mold forward and backward rod rods 32 connected to the upper mold support 200 installed on the upper part of the back, and detached, and then rotated the upper mold (2), and then the upper agent of the upper mold (2) inserted into the transition Using a mold 30 and the upper side of the first mold side slide 33 , the cloth is uniformly and smoothly adhered (coated) to the surface of the injection-molded product, and then the fabric is detached from the product using a mil pin of the lower mold (1). A multi injection molding method and apparatus.

The upper and lower supports of the upper mold support 200 and the upper mold 2 of the present invention uses a technique of vertically descending (forward and backward) with a conventional hydraulic cylinder, and thus, specific descriptions thereof are omitted in the present invention.

The upper mold forward and backward rod 32 and the chain drive motor 250 and the upper support gear 252 connected to the upper mold support 200 are devices for rotating the upper mold 2, and the upper mold 2 rotates. Silver is installed above and below the upper mold (2) is an improved invention for injection and cloth insert in a single device using a separate mold.

Two chain drive motor 250 installed on one side of the front and rear surface of the upper mold support 200 of the present invention, the upper support gear gear 252 installed on one side of the front and rear of the upper mold support 200 , and the upper Is connected to the front outer side to the support center portion 201, consisting of the upper mold forward and backward rod rod 32 connected to the outer one side of the upper mold (2) of the lower,

The upper second mold 100 of the present invention is formed in the lower portion of the upper first mold 30, is configured in the shape for forming a product, the upper first mold 30 of the upper mold (2) Is composed of a conventional cloth guide Robert (not shown) formed on one side and the cloth 50 is fixed to the upper portion inside, and consists of an upper first mold side slide 33 forming a lower one side ,

Also it is provided with a gear (251) outwardly, the front and rear surfaces of the upper mold (2), the gear 251 is rotated connected to the upper support gears 252 by a chain 380, inside the upper mold before and after the course deubong 32 is located, the upper mold forward and backward rod 32 is a structure that is connected to the upper mold support 200 installed on the top .

The lower mold (1) is formed on one side of the lower mold fixing part (3) , the lower fixing mold (4) formed on the upper side of the lower mold fixing part (3) , and the lower fixing mold (4) from side to side moving the lower side is moved mold 4 'and, through the center of the nozzle 16 and the lower fixed mold (4) which is formed through the center of the lower fixed mold (4) injecting resin into the mold interior And a plurality of upper and lower hydraulic cylinders 10 formed on the left and right sides of the lower fixed mold 4 and operating the upper and lower (back and forth) cylinders formed by the plurality of mil pins 41.

The first upper mold 30 and the first upper mold side of the slide 33 between has a lower portion when raised sliding interval upper mold side during the (Reverse) (α = 5mm) it is formed, the falling (forward) While coinciding with the mold, the upper first mold 30 and the upper first mold side slide 33 are in close contact with each other, and on the contrary, the upper mold side slide moving interval (α = 5 mm) is formed on the outer side of the upper first mold side slide 33. Repeated formation is to move up and down (front and rear) .

In the present invention, by using the same principle as described above, the coating of the cloth on the bent portion on the side of the injection-molded article, the upper first mold 30 installed on the upper part of the upper mold (2) to the upper part of the lower mold (1) When lowered (advanced) toward the molded product, the cloth and the primary molded product inserted into the lower inner side of the upper first mold 30 are compressed.

The curved side of the injection-molded product has a locking block 35 which protrudes to the lower side of the upper first mold side slide 33 which is inclined inward to the side of the upper first mold 30 positioned below the transition . Partly formed on one side of the lower mold fixing part 3 and inserted into the locking block groove 11 inclined inward, the upper first mold side slide 33 formed on the side of the upper first mold 30 is ejected. It comes in close contact with the curved side of the lower part of the molded article (the upper mold side slide moves in the direction of the injection molded part by the upper mold side slide movement interval (α = 5mm)) and a constant pressure (set) is applied. At the same time, the fabric is uniformly coated (adhered) to the curved side, and the upper first mold side spring 34 installed on the upper side of the upper first mold side slide 33 is rebounded if a predetermined time or a predetermined pressure (set ) is exceeded. Signal the upper first mold side slice The rod 33 is returned to its original position, and at the same time, the upper first mold 30 is raised (reversed), and the curved surface is uniformly coated (adhered) to the surface and sides of the injection-molded article.

At this time, if the curved surface is four, all four surfaces can be installed by adding a plurality of upper first mold side slides 33 as described above, and at the same time, a ceiling lamp on the surface of the injection-molded article in which projections such as embossing are formed on the surface. The adhesive may be uniformly adhered (coated), or by installing a plurality of devices as described above to manufacture injection molded articles coated with several fabrics at the same time.

Hereinafter, the present invention will be described in detail through examples.

Example

1st process (cloth insert process)

As shown in Figure 1, in the upper and lower mold and the upper mold support ( 1 , 2, 200) spaced apart, the inner lower portion of the upper first mold 30 of the upper mold (2) formed on the upper mold (1) The cloth guide Robert (not shown) by manually injecting the cloth is formed a plurality of spaced apart at regular intervals on one side of the upper mold inner upper portion 21 of the upper first mold 30, fixed pin spring at the rear end After fixing to the insert cloth fixing pin 23 provided with (24),

2nd process (resin injection and molding process)

The lower mold 1 operates the lower side movable cylinder 8 installed on the upper side of the lower mold fixing part 3 to move the lower side movable mold 4 ' toward the lower fixed mold 4 to coincide therewith.

As shown in FIG. 3, the upper mold support 200 and the upper mold 2 positioned below the upper mold support 200 are lowered (advanced) , and the upper second mold 100 of the upper mold 2 is disposed. ) By moving to the lower mold (1) (the chain 380 is loose, and

Resin is injected into the space portion between the upper second mold 100, the lower fixed mold 4, and the lower side movable mold 4 ′ coupled through the nozzle 16 formed in the lower mold 1. When the resin injection amount set by the controller (not shown) installed outside the mold is injected, the shape of the product is first molded ,

As shown in FIG. 4, after the upper mold support 200 and the upper mold 2 are raised (reversed) , the upper second mold 100 is detached from the lower mold 1,

When driving two chain drive motor 250 installed on one side inside the front and rear surface of the upper mold support 200, it is connected to the shaft of the chain drive motor 250 and installed on one side outside the front and rear of the upper mold support 200 The upper support gear 252 is rotated, the chain 380 connected to the upper support gear 252 and the upper mold gear 251 is rotated to rotate the upper mold (2), the transition insert in the first process After matching the upper first mold 30 in the lower mold (1) direction,

The lower mold (1) operates the lower side movable cylinder (8) installed on the upper side of the lower mold fixing portion (3) to move the lower side movable mold (4 ') of the lower mold (1) from the lower fixed mold (4). After moving it outward and putting it back to its original position,

3rd process (cloth adhesion (coating) process)

As shown in FIG. 5, the upper mold support 200 and the upper mold 2 are lowered (advanced) before the primary molded product is completely hardened, and the upper first mold 30 of the upper mold 2 is lowered to the lower mold. To match, and press the fabric and the primary molded product inserted into the lower inner side of the upper mold (30),

The curved side of the side is a locking block 35 which protrudes to the lower side of the upper first mold side slide 33 which is inclined inward to the side of the upper first mold 30 located below the transition is lower Part 1 formed on one side of the mold fixing portion 3 is inserted into the locking block groove 11 inclined inward, the upper first mold side slide 33 formed on the side of the upper first mold 30 is the injection molded article Reach close to the curved side of the lower part,

When a certain pressure (set) is applied, the transition surface (adhesion) is uniformly applied to the curved side, and if a predetermined time or a predetermined pressure (set) or more, the upper first mold side spring 34 repulses and signals it. The upper first mold side slide 33 is returned to its original position, and at the same time, the upper first mold 30 is raised (reversed), and the fabric is uniformly coated (adhered) to the curved surface on the surface and sides of the injection-molded article, If the curved surface is four, all four surfaces can be installed by adding the above device.)

As described above, after molding the finished product with a cloth, after a certain time,

4th process (demolition process)

As shown in FIG. 6, when the upper mold support 200 and the upper mold 2 (the upper first mold 30) are raised (reversed) , a product formed on the upper portion of the lower fixed mold 4 remains. When the two vertical hydraulic cylinders 10 formed on the left and right sides of the lower fixed mold 4 are raised ( reversed), the upper upper and lower pressure plates 5 and 6 formed on one side of the upper and lower hydraulic cylinders 10 and 6 ) Are raised ( reversed ) together , and a plurality of mill pins 41 fixed to the upper part of the lower upper compact plate 5 pass through the lower mold lower part (rear) to the lower part of the secondary molded product to push out the molded product. After removing the molded product to manufacture a multi-insert injection molded article, and then return to the first step to perform a multi-insert injection molded article is repeatedly inserted into the transition process.

By installing a plurality of the above mold, it is possible to injection molding a number of products at the same time, the upper mold rotating device 38 can be installed and used in the rear as well as the front.

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

1 is a detailed view of the insert cloth installation side in the open mold of the present invention, FIG. 2 is a front view in which the upper second mold of the present invention is advanced left and right, and FIG. 3 is a side view in which the upper second mold of the present invention is advanced left and right 4 is a front state diagram of the lower mold and the upper second mold of the present invention, FIG. 5 is a side view of the lower mold and the second upper mold of the present invention, and FIG. 6 is the upper second mold of the present invention. Shows this retracted side view,

Lower mold (1), upper mold (2), lower mold fixing part (3), lower fixing mold (4), lower side movable mold (4 '), lower upper sealing plate (5), lower lower sealing plate (6), Hydraulic cylinder support (7), lower side movable cylinder (8), resin inlet (9), up and down hydraulic cylinder (10), locking block groove (11), nozzle (16), upper mold inner upper part (21) , insert cloth Fixing pin 23, fixing pin spring 24, upper first mold 30, upper mold left and right portions 31, 31 ', upper mold forward and backward rod 32, upper first mold side slide 33 , Upper first mold side spring 34 , locking block 35 , upper first mold side slide bolt 37 , upper mold rotating device 38, upper first mold central side portion 39 , upper second mold 100, the pin 41, the upper mold support 200, the upper support center portion 201 , the chain drive motor 250, gear 251 , the upper support gear 252 , chain 380, α: upper It can be seen that the mold side slide movement interval is shown.

Looking at the structure, as shown in Figures 1 and 2, the upper mold (2) and the upper mold (2) provided with the upper first mold 30 and the upper second mold 100 in the lower portion, and the upper mold (2) Gear 251 is provided on the outside of the front and rear surface of the upper mold forward and backward rod rod 32 located inside the chain 380 connected to the gear 251 , the upper end of the upper mold forward and backward rod 32 It is connected to the upper mold support 200 is installed on the upper side of the upper mold (2), two chain drive motor 250 installed on one side inside the front and rear surface of the upper mold support 200 , and the upper mold support An upper support gear 252 installed on one side of the front and rear outer surfaces of the 200 , the gear 251 , a chain 380 connected to the upper support gear 252 ,

Located in the lower portion of the upper mold (2), the lower mold fixing portion (3), the lower fixing mold (4) formed on the lower mold fixing portion (3), and the lower side moving mold (4 ') inside the upper part of the formed lower mold 1 and the upper mold (2) above the upper first mold the upper mold side of the slide 33 which form the lower side of (30) provided in between said upper mold (2) As a multi-injection molding that is inserted into the fabric is provided with a conventional cloth guide Robert (not shown) formed on one side that is introduced to secure the fabric, it will be described in more detail,

The upper mold support 200 is the upper support center portion 201 formed so that the center portion is moved up and down (front and rear) , two chain driving motor 250 installed on one side inside the front and rear surface of the upper mold support 200 , The upper mold support gear 252 installed on one side outside the front and rear surfaces of the upper mold support 200 and connected to the front outer side to the central portion 201 of the upper support, the upper mold rotating device of the upper mold 2 of the lower (38) ) Consists of the upper mold forward and backward rods (32) connected to the

delete

The upper first mold 30 is composed of an upper first mold side slide 33 installed on one side, and a locking block 35 protruding from the lower portion of the upper first mold side slide 33 .

An upper mold inner upper portion 21 formed on the lower inner upper portion of the upper first mold 30 , insert cloth fixing pins 23 formed at two positions spaced apart from one side of the upper mold inner upper portion 21 , and Is formed at the end of the insert cloth fixing pin 23 is provided with a fixing pin spring 24 to give elasticity to the insert cloth fixing pin 23,

The first upper mold side of the slide 33 constitutes a side lower portion of the first upper mold 30 and the first upper mold side sliding movement between the first upper mold 30 and the first upper mold side of the slide (33) An interval (α = 5 mm) is formed,

First upper mold side spring 34 is formed on the outside of the first upper mold 30 and the multi-stage first upper mold side of the slide bolt 37 provided in the lateral to the boundary line at the top and the first upper mold side of the slide ( 33) is composed of a locking block 35 protruding to the bottom of the,

The lower mold (1)

A lower fixing mold 4 fixedly installed on the lower mold fixing part 3 and an upper side of the lower mold fixing part 3 and installed on one side of the lower fixing mold 4 to move left and right; A lower side movable cylinder 8 installed at a lower portion of the movable mold 4 'and the lower side movable mold 4' to move the lower side movable mold 4 'from side to side ;

The lower fixed mold fixed pin spring giving elasticity to 4 insert cloth fixed pin 23 and the insert cloth insert cloth fixing pin 23 is formed at an end of the fixed pin 23 formed in the top rim of (24 ) And,

The lower mold and the part formed at one side of the unit (3) lowered (forward) when the locking block groove (11 formed be inclined inwardly so that the locking block 35 is inserted in the upper mold (2) in the upper mold (2) ) and the lower fixed mold (4) forming the center is formed through a resin nozzle 16 and, to be a certain distance apart on the lower edge portion of the lower fixed mold (4) is formed to inject into the mold the interior of the After passing through the inner upper portion of the lower fixed mold (4) up and down (forward and backward) and a plurality of mil pins 41 for pushing out the molded product upwards,

The lower upper plate (5) formed on the lower portion of the plurality of mill pins (41), the lower lower plate (6) formed on the lower upper plate (5), and the lower mold fixing portion (3) It is formed on the left and right and the upper and lower hydraulic cylinder 10 for moving the upper and lower wheat plates (5, 6) up and down (front and rear) supporting the mill pin 41, and in the lower portion of the upper and lower hydraulic cylinder (10) A multi-injection insert is formed of a hydraulic cylinder support 7 which is formed to fix the upper and lower hydraulic cylinders 10, and a resin inlet 9 which is a lower end of the nozzle 16 and injects resin into the nozzle 16. It is a molding apparatus.

In addition, the inside of the lower mold (1) can be used by forming a conventional cooling device (not shown) for protecting the nozzle 16 from the heat generated during resin injection, which is selectively formed according to the resin injection amount Can be used.

In the present invention as described above, two types of molds are installed in one apparatus and one upper mold, and the upper mold is rotated to alternately coincide with the lower mold, and at the same time, the skin material (leather, artificial leather, nonwoven fabric, cloth). , Synthetic resin sheet and film) can be adhered to the outside of injection-molded product to reduce the cost and to improve the quality of molded products. It can reduce, reduce the installation space, improve the quality economically, and the effect that the fabric is easily detached after a certain time.

Claims (5)

In the injection molding method in which the cloth is inserted, 1st process (cloth insert process) In the state where the upper and lower molds and the upper mold support ( 1 , 2, 200) are spaced apart, the cloth guide Robert (not shown) in the inner lower portion of the upper first mold 30 of the upper mold (2) formed on the upper portion of the lower mold (1) When the cloth is manually injected through a ) is formed a plurality of spaced apart at regular intervals on one side of the upper mold inner upper portion 21 of the upper first mold (30), the fixing pin spring 24 is provided at the rear end After fixing to the inserted insert fixing pin 23, 2nd process (resin injection and molding process) The lower mold (1) operates the lower side movable cylinder (8) installed on the upper side of the lower mold fixing part (3) to move the lower side movable mold (4 ') of the lower mold (1) toward the lower fixed mold (4). After moving to match the lower mold (1), While lowering (advancing) the upper mold support 200 and the upper mold (2) located below the upper mold support (200), the upper mold (2) of the upper second mold 100 of the lower mold ( Move to 1) and combine, (the chain 380 will be loose, at this time) Resin is injected into the space portion between the upper second mold 100, the lower fixed mold 4, and the lower side movable mold 4 ′ through the nozzle 16 formed in the lower mold 1. When all the resin injection amount set by the controller (not shown) installed on the outside is injected, the shape of the product is primarily molded, After the upper mold support 200 and the upper mold 2 are raised (reversed) , and the upper second mold 100 is detached from the lower mold 1, When two chain driving motors 250 installed on one side of the front and rear surfaces of the upper mold support 200 are driven, the upper portion is installed on one side of the front and rear surfaces of the upper mold support 200 connected to the shaft of the chain driving motor 250. The support gear 252 is rotated, the chain 380 connected to the upper support gear 252 and the gear 251 of the upper mold is rotated to rotate the upper mold (2), In the first process, the upper first mold 30, which is transition-inserted, is aligned in the lower mold 1 direction, The lower mold (1) operates the lower side movable cylinder (8) installed on the upper side of the lower mold fixing portion (3) to move the lower side movable mold (4 ') of the lower mold (1) from the lower fixed mold (4). After moving it outward and putting it back to its original position, 3rd process (cloth adhesion (coating) process) Before the first molded product is completely hardened, the upper mold support 200 and the upper mold 2 are lowered (advanced), but the upper first mold 30 of the upper mold 2 is aligned with the lower mold 1. And, the cloth and the primary molded product is inserted into the lower inner side of the upper first mold 30 , The upper first mold side slide 33 is inclined inward to the side of the upper first mold 30 positioned below the transition , and the locking block protrudes below the upper first mold side slide 33. 35 is partially formed on one side of the lower mold fixing portion 3 is inserted into the locking block groove 11 inclined inward, the upper first mold side slide 33 formed on the side of the upper first mold 30 ) Comes in close contact with the curved side of the lower part of the injection molded article, When a certain pressure (set) is applied, the transition surface (adhesion) is uniformly applied to the curved side, and if a predetermined time or a predetermined pressure (set) or more, the upper first mold side spring 34 repulses and signals it. The upper first mold side slide 33 is returned to its original position, and at the same time, the upper first mold 30 is raised (reversed), and the curved surface is uniformly coated (adhered) to the surface and sides of the injection-molded article. Likewise, after molding the finished product with cloth, after a certain time, 4th process (demolition process) When the upper mold support 200 and the upper mold 2 (the upper first mold 30) are raised (reversed) , the product formed on the upper portion of the lower fixed mold 4 remains, and at this time, the lower fixed mold ( When the two up and down hydraulic cylinders 10 formed on the left and right sides of 4) are raised ( reversed), the lower upper and lower tight plates 5 and 6 formed on one side of the upper and lower hydraulic cylinders 10 are raised together ( reverse), and to said plurality of milpin 41 fixed to the top of the lower sangmil plate 5 a through the lower mold below the secondary rise (reverse a molded product lower) pushes the molded product to remove the molded article A method of injection molding multiple injection molding, characterized in that for producing a multi-insert injection molded article, and then repeatedly returning to the first process. In a multi-injection molding apparatus with a transition insert, And the first upper mold 30 and the lower upper second mold 100 is provided with an upper mold (2), a gear 251, the front and back are installed on the outside of the upper die (2) formed in the formed in the top, the It is connected to the gear 251 and connected to the upper mold forward and backward rods 32 located inside the chain 380, the upper end of the upper mold forward and backward rods 32, the upper of the upper mold (2) the upper mold support 200 and the and the upper mold support two chain drive motor 250 is provided inside one side of front and rear surfaces of the 200, the upper support is installed on the front and back outer side of the upper mold support 200 is provided on The gear 252 , the gear 251 , the chain 380 connected to the upper support gear 252 , and the lower mold fixing part 3, the lower mold fixing part 3, mold fixing (3) a lower fixed mold 4 and the lower side moving mold lower die (1) formed of the (4 ') formed in the top of said upper mold An upper mold side slide 33 forming a lower one side of the upper first mold 30 installed at an upper portion thereof, and a cloth guide Robert formed at one side of the cloth to be fixed to the inner upper portion of the upper mold 2. Not shown) The lower mold (1) is located above the lower mold fixing part (3), A lower fixing mold 4 fixedly installed on the lower mold fixing part 3, and an upper side of the lower mold fixing part 3, and installed on one side of the lower fixing mold 4 and moving left and right. A lower side movable mold 4 'which is installed at a lower side of the lower side movable mold 4' and moves the lower side movable mold 4 'from side to side ; The lower mold that is formed in the end of the section (3) a lower fixed mold (4) insert cloth fixed pin 23 and the insert cloth fixed pin 23 formed in the top rim of the formed in the top of the insert cloth fasteners ( 23) a fixed pin spring (24) to give elasticity to, Partly formed on one side of the lower mold fixing portion (3) and the locking block groove (11) formed inclined to the inner shaft so that the locking block 35 of the upper mold (2 ) is inserted when the upper mold (2) is lowered (advanced ) and A nozzle 16 penetrating through the center of the lower fixing mold 4 formed on the upper part of the lower mold fixing part 3 to inject the resin into the mold, and a lower edge of the lower fixing mold 4; And a plurality of mil pins 41 formed to be spaced apart at regular intervals to penetrate the inner upper portion of the lower fixed mold 4 and pushed up and out of the molded product upwards and downwards (forward and backward ), and the mil pins 41. sangmil lower bottom plate is formed in the securing of the 5 and the upper and lower Hamill the lower plate 6 and the lower portion, Hamill plate (5, 6) formed at the bottom of the lower sangmil plate 5 (front) Up and down hydraulic cylinder 10 for moving to the upper and lower hydraulic cylinder 10 is formed in the lower portion of the up and down hydraulic cylinder 10 And fixing the hydraulic cylinder support (7) to, and the lower end of the nozzle 16 is composed of a resin injection port (9) for injecting resin to said nozzle (16), The upper mold support 200 is moved to the upper and lower (front and rear) the center portion is connected to the upper support center portion 201 and the front support central portion 201 on one side, the upper side of the upper upper mold (2) A multi-injection molding apparatus for inserting a cloth , characterized in that it comprises an upper mold forward and backward rod rod 32 connected to the mold rotating device (38) . delete delete The method of claim 2, wherein the upper first mold 30 is composed of an upper first mold side slide 33 installed on one side, and a locking block 35 on the lower side of the upper first mold side slide 33 . The upper mold inner upper portion 21 formed on the lower inner upper portion of the upper first mold 30, and the insert cloth fixing pin 23 formed at two positions spaced apart from one side of the upper mold inner upper portion 21 by Is formed at the end of the insert cloth fixing pin 23 is provided with a fixing pin spring 24 to give elasticity to the insert cloth fixing pin 23, The upper first mold side slide 33 constitutes one side lower portion of the upper mold 30 and the upper first mold side slide moving interval between the upper mold 30 and the upper first mold side slide 33 (α = 5 mm) is formed, An upper first mold side spring 34 formed on the outside of the multi-stage upper first mold side slide bolt 37 disposed on a boundary line with the upper mold 30 at an upper portion thereof, and the upper first mold side slide 33. A multi-injection molding apparatus is inserted into the fabric , characterized in that it comprises a locking block 35 protruding to the lower portion of the installation.

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