KR20080004949A - The method for manufacturing and apparatus for catapulting and molding insert cloth - Google Patents

Abstract

A method and an apparatus for injection molding, wherein cloth is inserted, are provided to prevent wrinkles or embossments from being formed on surface of cloth adhered to surface of synthetic resin by attaching surface materials to an injection molded product. An apparatus for injection molding, wherein cloth is inserted, comprises an upper mold(2), a moveable lower mold(1), an intermediate mold(100), an intermediate mold hydraulic cylinder(110), and a cloth guide robot. The upper mold includes a central part moving back and forth, an upper mold lateral slide(33) and a locking block(35). The lower mold includes a fixed lower mold(4) and a moveable lower mold(4') which are disposed between the upper mold and a lower mold fixing unit(3). The intermediate mold, which is located between the upper mold and the lower mold, has the same shape of the upper mold. The intermediate mold hydraulic cylinder moves the intermediate mold, connected to an intermediate mold cylinder rod. The cloth guide robot is installed to insert cloth to the upper part of the upper mold.

Description

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

1 is a side view of the insert cloth installation in the mold of the present invention open

2 is a front state diagram in which the intermediate mold of the present invention is advanced

Figure 3 is a side view of the advanced intermediate mold of the present invention

Figure 4 is a front state diagram combined with the lower mold and the intermediate mold of the present invention

Figure 5 is a side view of the lower mold and the middle mold of the present invention combined

Figure 6 lower mold example of the present invention

7 is an example of the upper mold and the middle mold of the present invention

8 and 9 intermediate mold example

<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), insert fabric fixing pin (13), fixed pin spring (14), Nozzle 16, upper mold support 21, upper mold inner upper portion 22, insert ceiling fixing pin 23, fixing pin spring 24, upper mold center portion 30, upper mold left and right portions (31, 31) '), Upper mold rod rod 32, upper mold side slide 33, upper mold side spring 34, locking block 35, upper mold side slide bolt 37, upper mold center side portion 39 , Intermediate mold (100), intermediate mold hydraulic cylinder (110), mill pin (41), intermediate mold cylinder rod (111), α: upper mold side slide movement interval.

The present invention is one of the manufacturing apparatus for automobile interior materials, and the injection molding as one device, the "New Concept Synchro Insert Process (SIP)" named by the applicant and at the same time the skin material (leather, artificial leather, nonwoven fabric, The present invention relates to a multi-injection molding method and a device in which a fabric is attached to the outside of an injection-molded article.

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 resins, or interior materials with a part of a soft cloth (skin material) attached to the synthetic resin surface.Other car models adhere the fabric (skin material) to the entire surface of the base material. In order to use the trimmed together, or to improve the feel of the material, a high-quality cloth is bonded to the synthetic resin surface, and then the edge of the cloth is wrapped around the inner surface of the substrate and then used.

Looking at the general manufacturing method of automotive interior materials, the method of attaching the cloth after the injection molding of the car interior material is a method of manually attaching to the outside of the car 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 cloth, but in the first case, it is inexpensive by hand, and in the second case, the quality is good, but the inconvenience of having to injection mold twice In the third case, there are injection high and low pressure injection methods and high pressure injection methods. The low pressure injection method is low pressure when injecting the injection liquid, while high pressure is applied when forming the substrate by pressing a cloth into the mold by inserting a cloth into the mold. need.

This low pressure injection method is more productive by forming the interior materials of automobiles and bonding the cloth at the same time. However, when the skin surface material of the fabric is a woven or non-woven fabric, the interior material that has a lot of angled step parts in the product has a high-pressure press pressure. When pressed into the upper mold, there is a problem that the injection liquid is seen on the surface of the cloth by the high pressure has been a lot of research to solve this problem.

For example, the Republic of 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 and applying an adhesive or a releasing agent to the other side of the surface pattern member contacting the release agent layer so that the surface pattern member is attached to or separated from the surface of the synthetic resin molding so that the pattern of the pattern member is extended. Described is a method of forming a surface pattern of a synthetic resin molding expressed on the surface of the synthetic resin molding. 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. A heating position facing the sheet, and the heating body enters into a space between a pair of forming molds; At the same time as the injection molding consisting of heating body moving means for moving the heating body in a positional relationship in which the heating surface of the heating body is not parallel to each other between the heating position and the non-intensifying position between the non-intensity positions to be 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 of the mold closing bar 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 Described is a method for producing a multilayer molded article that is formed by folding and folding the edge of the skin material to the rear of the resin body.

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 molding 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 in the state that the gap is corrected during 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 portion, and inserting the skin material into the insertion groove while being variably protruded by a cylinder in the forming surface between the twelfth 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 the rod 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 improve the injection molding method and the device is inserted into the patent application Nos. 10-2003-73301 and 10-2005-0019077, the name of the present invention is applied by the present applicant to solve the above problems As a center, the fabric is guided to the lower part of the upper mold (2), which is moved up and down by a normal Robert, and the middle mold (100) is used between the upper and lower molds (2) in accordance with the lower mold. After injection molding the initial shape, the intermediate mold is removed to one side, the upper mold (2) prepared at the top is lowered, and the cloth is adhered to the surface of the injection-molded product molded in the lower mold by lowering the upper mold (2). Accordingly, the present invention is to provide a multi-injection molding method and apparatus for inserting a cloth for bonding (coating) the skin material to the surface of the injection molding and the injection-molded article with a single apparatus.

In order to achieve the above object, the present invention provides an upper mold center portion 30, an upper mold side slide 33 forming a lower side of the upper mold center portion 30, and left and right sides of the upper mold center portion 30. The upper mold left and right sides 31 and 31 ′ forming the upper mold (2) and the lower mold fixing part (3), which is located at the lower side of the upper mold (2), which is moved to the front and back of the central part. And, a lower fixing mold 4 formed on the lower mold fixing part 3 and a lower mold 1 as a lower side moving mold 4 ', and an upper mold 2 and a lower mold 1. Located between and using the apparatus consisting of the intermediate mold 100, the same mold shape as the upper mold (2), after injection molding, the injection molded product spaced the intermediate mold 100 to one side before the tableware Next, the upper mold center portion 30 and the upper mold side slab of the upper mold (2), which is formed on the upper side and is inserted into the cloth The present invention relates to a multi-injection molding method and apparatus in which a cloth is uniformly and smoothly adhered (coated) to the surface of an injection-molded product by using the id 33 and then the fabric is detached from the product by a mil pin of the lower mold 1.

The intermediate mold 100 is connected to the outer mold through the intermediate mold cylinder rod 111 to move the intermediate mold 100 to one side to separate or combine the intermediate mold hydraulic cylinder 110, and the upper mold (2) The cloth 50 is fixed to the upper portion of the inner) and consists of a conventional cloth guide Robert (not shown) formed on one side,

The lower mold (1) is formed on one side of the lower fixed mold (3), the lower fixed mold (4) formed on the lower fixed mold (3), and the lower fixed mold (4) is moved to the left and right A lower side movable mold 4 ', a nozzle 16 penetrating through the center of the lower fixed mold 4 of the lower fixed mold 3 to inject resin into the mold, and the lower fixed mold 4 It consists of a plurality of mil pin (41) formed through the center of the) and two vertical hydraulic cylinders (10) formed on the left and right sides of the lower fixed mold (4) to operate the mil pin (41) up and down. .

The upper mold 2 has an upper mold center portion 30, an upper mold side slide 33 forming a lower one side of the upper mold center portion 30, and an upper mold forming left and right sides of the upper mold center portion 30. It consists of mold left and right parts (31, 31 '),

Between the upper mold center portion 30 and the upper mold side slide 33, the upper mold side slide movement interval (α = 5mm) is formed at the time of reversal, and at the same time the upper mold center portion ( 30) and the upper mold side slide 33 is in close contact with the upper mold side slide movement interval (α = 5mm) is formed on the outer side of the upper mold side slide 33 is moved forward and backward.

In the present invention, using the same principle as described above, the coating of the cloth on the bent portion on the side of the injection-molded article is the upper mold rod rod 32 connected to the Shanghai hydraulic press (not shown) of the upper mold (2), and the upper By advancing the upper mold center portion 30 connected to the lower portion of the mold rod rod 32 and the upper mold side slide 33 forming the lower one side of the upper mold center portion 30,

Pressing the cloth and the primary molded product inserted into the lower inner side of the upper mold center portion 30,

The curved side of the injection-molded product has a locking block 35 which protrudes to the lower side of the upper mold side slide 33 which is inclined inwardly on the side of the upper mold center portion 30 positioned at the lower portion of the transition mold. Partly formed on one side of the fixing portion 3 is inserted into the locking block groove 11 inclined inward, the upper mold side slide 33 formed on the side of the upper mold center portion 30 is curved of the lower part of the injection molded article It comes in close contact with the side (in this case, the upper mold side slide moves in the direction of the injection molded part by the upper mold side slide moving distance (α = 5mm)) and a constant pressure (set) is applied to the curved side at the same time. If the transition coating (adhesion) is a certain time or a predetermined pressure (set) or more, the upper mold side spring 34 installed on the upper side of the upper mold side slide 33 is repulsed to signal the upper mold side slide 33 as a signal. Autumn circle Value and, at the same time, will be the upper die central portion 30 is the reverse, and coating a constant transition of flexure jinmyeon the injection-molded article surface and sides (adhesion).

In this case, if the curved surface is four, all four surfaces can be installed by adding a plurality of upper mold side slides 33 as described above, and at the same time, a cloth or the like is fixed on the surface of the injection-molded article in which protrusions such as embossing are formed on the surface. It may be adhesive (coating), it is also possible to manufacture a plurality of cloth-coated injection molded article by installing a plurality of such devices at the same time.

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

Example

1st process (cloth insert process)

As shown in FIG. 1, in the state where the upper and lower molds 1 and 2 are spaced apart from each other, the cloth is manually inserted through the cloth guide Robert (not shown) at the inner lower portion of the upper mold 2 formed at the upper portion of the lower mold 1. Injecting a plurality of spaced apart at a predetermined interval on one side of the upper mold inner upper portion 22 of the upper mold (2), the insert pin fixing pin (23) provided with a fixing pin spring 24 at the rear end After fixing,

2nd process (resin injection and molding process)

2 and 3, by operating the intermediate mold hydraulic cylinder 110 formed on one side of the intermediate mold (100) formed between the upper and lower molds (1, 2), the intermediate mold (100) is the lower mold (1 The lower side movable mold 4 'of the lower mold 1 is moved to the lower fixed mold 4 by operating the lower side movable cylinder 8 installed on the upper side of the lower mold fixing part 3). After matching (1),

4 and 5, by operating the hydraulic cylinder (not shown) to combine the lower mold 1 and the intermediate mold 100 by backward,

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

By operating the intermediate mold hydraulic cylinder 110 to form a space by moving the intermediate mold 100 to one side while leaving the primary molded product as it is,

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) to the lower fixed mold (4). After moving it outward to the original position,

3rd process (cloth adhesion (coating) process)

The upper mold rod rod 32 connected to the Shanghai dynamic oil press (not shown) of the upper mold 2 and the upper mold center portion 30 connected to the lower portion of the upper mold rod rod 32 before the primary molded product is completely hardened. And when the upper mold side slide 33 to form a lower side of the upper mold center portion 30 is advanced, the cloth and the primary molded product is inserted into the lower inner side of the upper mold center portion 30,

The side which is curved at the side has a locking block 35 which protrudes to the lower side of the upper mold side slide 33 which is inclined inward to the side of the upper mold center portion 30 located at the lower portion of the transition. The upper mold side slide 33 is formed on the side of the upper mold center portion 30 is inserted into the locking block groove 11 inclined inward and partially formed on one side of (3) to the curved side of the lower part of the injection molded article. Reach closely,

At the same time 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 mold side spring 34 repulses and signals it to the upper mold. The side slide 33 is returned to its original position, and at the same time, the upper mold center portion 30 is reversed, and the curved surface is uniformly coated (adhesive) on the surface and sides of the injection-molded article, and at this time, if the curved surface is 4 sides, 4 On both sides, it can be done by installing the above equipment)

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

4th process (demolition process)

By operating the Shanghai copper hydraulic press (not shown) of the upper mold (2) in reverse, the upper mold center portion (30) is reversed, and the molded product remains on the upper portion of the lower fixing mold (4). When the two upper and lower hydraulic cylinders (10) formed on the left and right sides of the (4) is reversed, the lower upper and lower pressure plates (5) and the lower lower and lower plates (6) formed on one side of the upper and lower hydraulic cylinders (10) are reversed together, and The plurality of mill pins 41 fixed to the upper part of the lower upper mill 5 are raised through the lower mold lower part to the lower part of the secondary molded product to push out the molded product to remove the molded product, thereby manufacturing a multi-insert molded product. Then, the method returns to the first step to perform a method for manufacturing a multi-injection molded article is repeatedly inserted into the transition.

By installing a plurality of the above mold, it is possible to injection molding several products at the same time.

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

1 is a detailed side view of the insert cloth installation in the open state of the mold of the present invention, FIG. 2 is a front view of the intermediate mold of the present invention, and FIG. 3 is a side view of the intermediate mold of the present invention, FIG. Front state diagram of the lower mold and the intermediate mold is coupled, Figure 5 Side state diagram of the lower mold and intermediate mold of the present invention, Figure 6 Lower mold example of the present invention, Figure 7 Upper mold and intermediate mold example of the present invention, 8 and 9 illustrate an example of an intermediate mold, and includes a lower mold (1), an upper mold (2), a lower mold fixing part (3), a lower fixing mold (4), and a lower side moving mold (4 '). Upper and lower plates (5), lower and lower plates (6), hydraulic cylinder support (7), lower side movable cylinder (8), resin inlet (9), upper and lower hydraulic cylinder (10), locking block groove (11), insert cloth Fixing pin (13), fixing pin spring (14), nozzle (16), upper mold support (21), upper mold inner upper part (22), insert fixing pin (23), fixing pin spring (24), upper mold center (30), upper mold left and right sides 31 and 31 ', upper mold rod rod 32, upper mold side slide 33, upper mold side spring 34, locking block 35, upper mold side slide bolt (37), the upper mold center side portion (39), the middle mold (100), the middle mold hydraulic cylinder (110), the mill pin (41), the middle mold cylinder rod (111), α: shows that the upper mold side slide movement interval Able to know.

Looking at the structure, as shown in Figures 1 and 2, the central portion is moved forward and backward, the upper mold side slide 33 on one side, and the locking block 35 on the lower side of the upper mold side slide 33 The upper mold (2) is provided, and the lower fixed mold (4) and the lower part of the upper mold (2) is installed in the lower portion of the upper mold (2) and installed in the upper portion of the lower mold fixing portion (3) A movable lower mold 1 provided as a side movable mold 4 'and an intermediate mold 100 positioned between the upper mold 2 and the lower mold 1 and having the same mold shape as the upper mold 2. And an intermediate mold hydraulic cylinder 110 connected to the outer side of the intermediate mold 100 through an intermediate mold cylinder rod 111 to move the intermediate mold 100 to one side to separate or combine the mold 100; A conventional cloth guide rover formed on one side while the cloth is introduced into the upper portion of the mold 2 so as to be fixed. A multi-injection molding which is provided with a transition insert (not shown), will be described in more detail,

The upper mold (2) is formed on the upper side and the upper mold support 21, the through-hole is formed in the center, the upper mold left and right parts (31, 31 ') fixed to the left and right sides of the upper mold support 21, and the upper It is installed at the center of the left and right sides 31 and 31 'of the mold, and forms an upper mold center portion 30 connected to the hydraulic cylinder on the upper mold rod rod 32, and one side lower portion of the upper mold center portion 30. Consists of the upper mold side slide 33 is moved,

The mold rod rod 32 is installed through the central portion of the upper mold support 21, the upper portion is connected to the upper and lower hydraulic cylinders, the lower portion is the upper portion of the upper mold center portion 30,

The upper mold inner upper part 22 formed on the lower inner upper part of the upper mold center part 30, and the insert cloth fixing pin 23 formed at two spaced intervals on one side of the upper mold inner upper part 22, and the It 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 fixing pin 23,

The upper mold side slide 33 constitutes one side lower portion of the upper mold center portion 30, and an upper mold side slide movement interval (α = 5mm) is formed between the upper mold center portion 30 and the upper mold side slide 33. Formed,

The upper mold side spring 34 formed on the outside of the multi-stage upper mold side slide bolt 37 installed horizontally on the boundary line with the upper mold center portion 30 on the upper side, and protrudes to the lower side of the upper mold side slide 33. Consists of the installed locking block 35,

The lower mold (1) is located above the lower mold fixing part (3),

A lower fixing mold 4 fixedly installed on an upper portion of the lower mold fixing portion 3, and an upper side of the lower mold fixing portion 3, and a lower side surface installed on one side of the lower fixing mold 4 and moved left and right. A lower side movable cylinder (1-2) installed at a lower portion of the movable mold (4 ') and a lower side movable mold (4') to move the lower side movable mold (4 ') to the left and right;

Insert fixing pin (13) formed on the upper edge of the lower fixing mold (4) formed on the upper part of the lower mold fixing part (3), and formed on the end of the insert fixing pin (13) Fixed pin spring 14 to give elasticity to

Is formed on one side of the lower mold fixing part (3) and the locking block 35 of the upper mold (2) is inserted when the upper mold (2) is advanced and the locking block groove 11 inclined inward and the lower A nozzle 16 penetrating through the center of the lower fixing mold 4 formed on the upper part of the mold fixing part 3 to inject resin into the mold, and a predetermined distance from the lower edge of the lower fixing mold 4; A plurality of mill pins 41 are formed to be spaced apart and penetrate the upper and lower parts of the lower fixing mold 4 to be pushed out and drawn out to the upper part, and on the left and right sides of the lower mold fixing part 3. Formed,

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 up and down hydraulic cylinder (10) for moving the upper and lower sealing plates (5,6) supporting the mill pin (41) forward and backward, and formed in the lower portion of the upper and lower hydraulic cylinder (10) A hydraulic cylinder support 7 for fixing the cylinder 10, a nozzle 16 installed at the center of the lower mold fixing part 3 to inject resin into the lower fixing mold 4, and the nozzle ( 16) is a multi-injection molding apparatus in which a fabric is inserted into a lower end portion of the tip and is formed of a resin inlet (9) for injecting resin into the nozzle (16).

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 the resin injection, which is selectively formed according to the resin injection amount Can be used.

Figure 6 of the lower mold example of the present invention and Figure 7 shows an example of the middle mold and the upper mold of the present invention, was formed inside the mold to be manufactured to produce two products in one mold, one mold In order to manufacture two or four products at the same time it can also be used to make a mold inside.

8 and 9 illustrate an example of an intermediate mold, which is an example of reference to being able to produce two or three products in one conventional mold.

In the present invention as described above, the injection molding with a single device at the same time the skin material (leather, artificial leather, nonwoven fabric, cloth, synthetic resin sheet and film, etc.) to the outside of the injection-molded product, to reduce the cost and the quality of the molded product It is possible to reduce the cost of the product because it does not require a bond during molding or to reduce the damage caused by air pollution during work, and to prevent wrinkles or embossing from being formed on the skin layer of the fabric formed on the surface of the synthetic resin. Rather, after embossing is installed on a mold to manufacture an embossed injection molded article, a cloth may be adhered (coated) on the surface thereof, and a plurality of injection molded articles that are simultaneously adhered (coated) may be installed by installing a plurality of devices together. Can be manufactured,

In the pressing process, the thickness of the resin layer is also constant, thereby improving quality, and the cloth is easily detached after a certain time.

Claims (2)

In the injection molding method in which the cloth is inserted, 1st process (cloth insert process) In the state in which the upper and lower molds (1, 2) are spaced apart, the upper mold by manually injecting the cloth through the cloth guide Robert (not shown) to the inner lower portion of the upper mold (2) formed on the upper portion of the lower mold (1) After forming a plurality of spaced apart at regular intervals on one side of the upper mold inner upper portion 22 of (2), and fixed to the insert cloth fixing pin 23 provided with a fixing pin spring 24 at the rear end, 2nd process (resin injection and molding process) The intermediate mold 100 is operated by operating the intermediate mold hydraulic cylinder 110 formed on one side of the intermediate mold 100 formed between the upper and lower molds 1 and 2, and the lower mold fixing part 3 of the lower mold 1 After operating the lower side moving cylinder (8) installed on the upper one side of the bottom move the lower side moving mold (4 ') of the lower mold (1) toward the lower fixed mold (4) to match the lower mold (1), When operating the hydraulic cylinder (not shown) to combine the lower mold (1) and the intermediate mold 100 by backward, Resin is injected into the space between the intermediate mold 100, the lower fixed mold 4, and the lower side movable mold 4 ′ through the nozzle 16 formed in the lower mold 1, and then to the outside of the mold. When all the resin injection amount set by the installed controller (not shown) is injected, the shape of the product is first molded, By operating the intermediate mold hydraulic cylinder 110 to form a space by moving the intermediate mold 100 to one side while leaving the primary molded product as it is, 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) The upper mold rod rod 32 connected to the Shanghai dynamic oil press (not shown) of the upper mold 2 and the upper mold center portion 30 connected to the lower portion of the upper mold rod rod 32 before the primary molded product is completely hardened. And when the upper mold side slide 33 to form the lower side of the upper mold center portion 30 is advanced, the cloth and the primary molded product is inserted into the lower inner side of the upper mold center portion 30, The side which is curved at the side has a locking block 35 which protrudes to the lower side of the upper mold side slide 33 which is inclined inwardly on the side of the upper mold center portion 30 located at the lower portion of the transition. The upper mold side slide 33 is formed on the side of the upper mold center portion 30 is inserted into the locking block groove 11 inclined inward and partially formed on one side of (3) to the curved side of the lower part of the injection molded article. Reach closely, At the same time 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 mold side spring 34 repulses and signals it to the upper mold. The side slide 33 is returned to its original position, and at the same time, the upper mold center portion 30 is reversed, and the curved surface is uniformly coated (adhesive) on the surface and sides of the injection-molded article, and at this time, if the curved surface is 4 sides, 4 Both sides 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) By operating the Shanghai copper hydraulic press (not shown) of the upper mold (2) in reverse, the upper mold center portion (30) is reversed, and the molded product remains on the upper portion of the lower fixing mold (4). When the two upper and lower hydraulic cylinders 10 formed on the left and right sides of (4) are reversed, the lower upper and lower pressure plates 5 and 6 formed on one side of the upper and lower hydraulic cylinders 10 are reversed together. The plurality of mill pins 41 fixed to the upper portion of the lower upper plate 5 is raised to the lower part of the secondary molded product through the lower mold lower portion to push out the molded product to remove the molded product to insert a multi-insert molded article A multi-injection molding method in which a transition is inserted after the manufacturing process is performed, and the process returns to the first process. In the multi-injection molding apparatus in which the cloth is inserted, the upper portion of the upper mold side slide 33 and the upper mold side slide 33 on the lower side of the upper mold side slide 33 and the upper mold side is provided with a locking block 35 at the bottom of the upper mold side slide 33. (2) and the lower fixed mold (4) and the lower side movable mold (4) that is fitted to the lower portion of the upper mold (2) and installed in the lower portion of the upper mold (2) A movable lower mold (1) provided between the upper mold (2) and the lower mold (1), the middle mold (100) having the same mold shape as the upper mold (2), and the middle Intermediate mold hydraulic cylinder 110 and connected to the outer surface of the mold 100 through the intermediate mold cylinder rod 111 to move or remove the intermediate mold 100 to one side, and the upper mold (2) A cloth guide Robert is formed on one side and flows in such a manner that the cloth is fixed to the upper portion thereof. Multi-injection molding apparatus transition insert, characterized in that it is composed of a city).

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