KR20210073926A - Insert Injection Mold For Manufacturing Injection Product Having Air Bag Door And Manufacturing System Of Injection Product - Google Patents

Abstract

The present invention discloses an insert injection mold for manufacturing an injection-molded product having an airbag door, and an injection-molded product manufacturing system including the same. The insert injection mold includes: a first mold for supporting a hinge reinforcing material loaded on a molding region of an airbag door so that the hinge reinforcing material for reinforcing a hinge part of the airbag door is inserted into a cavity forming a molding space of an injection-molded product having the airbag door; and a second mold assembled with the first mold to perform mold closing. The first mold includes: a core for molding the injection-molded product having the airbag door; and a reinforcing material mounting pin that provided on the core so as to be movable forward and rearward to maintain a position of the hinge reinforcing material loaded on the molding region of the airbag door in a mold-opened state, the reinforcing material mounting pin protrudes from a surface of the core to support the hinge reinforcing material through an alignment reference hole formed in the hinge reinforcing material, and the reinforcing material mounting pin is retractable by an external force for pressing a front end of the reinforcing material mounting pin. According to the present invention, since a regular position of the hinge reinforcing material is stably maintained, the hinge reinforcing material is prevented from being separated in a process of molding the airbag door, and product defects caused by separation of a scrim are prevented.

Description

Insert Injection Mold For Manufacturing Injection Product Having Air Bag Door And Manufacturing System Of Injection Product}

The present invention relates to a mold for manufacturing an injection molded product having an airbag door of a vehicle, and an injection molding manufacturing system including the mold, and more particularly, an insert having a structure that facilitates mounting of a scrim for reinforcement of an airbag door It relates to an injection mold and an injection molding manufacturing system including the same.

An air bag is a occupant protection device that secures the safety of passengers by preventing a direct collision between the vehicle itself and the human body in the event of a vehicle collision. The airbag is mounted at a predetermined position inside the vehicle, that is, inside the vehicle, to protect the passenger from impact when the vehicle collides or collides at a speed greater than a preset speed.

More specifically, when a collision is detected by a sensor mounted on the vehicle, the working gas device is exploded, and the airbag is instantaneously inflated due to the explosive gas to prevent the vehicle occupant from directly collided with the structure or window inside the vehicle. prevent.

The airbag is an essential safety device for a vehicle, and the airbag system for mounting and operating the airbag includes an impact sensing module having a sensor and an airbag module deploying the airbag upon impact.

The airbag module is provided in a vehicle structure such as a steering wheel or an instrument panel. In addition, the airbag module includes an inflator that ejects explosive gas when receiving an impact detection signal from a sensor, an airbag that expands by the explosive gas, and an airbag housing in which the airbag and the inflator are built.

And the airbag housing includes a housing body for accommodating the above-described airbag, and an airbag door that is opened in an optional situation for deployment of the airbag.

The airbag technology described above has gradually developed from the stage of protecting occupants by deploying the airbag in front of the vehicle occupant, and the deployment positions of the airbags such as roof airbags and curtain airbags are also diversifying, and the deployment pressure and deployment timing of each airbag. The lights are controlled differently depending on the accident situation to ensure the safety of vehicle occupants.

Among the airbags described above, a passenger air bag (PAB) is an airbag device for protecting a passenger in a passenger seat. Generally, the passenger seat airbag is provided inside an instrument panel or an injection-molded product called a crash pad, and when a vehicle crash occurs, the airbag door provided in the crash pad is opened and the airbag is deployed.

In the above-described passenger seat airbag device, the airbag door may be integrally formed with the crash pad when the above-described crash pad is formed, or may be assembled with each other after the crash pad and the airbag door are separately manufactured.

The airbag door is opened in a rotational, that is, opening/closing method. In order to reinforce the rigidity of the hinge portion of the airbag door, that is, the rotation standard of the airbag door and prevent damage to the airbag door, a reinforcing material in the form of a fabric called scrim is used. have.

For example, in a state in which the above-described scrim is pre-inserted at a predetermined position in the mold for molding the airbag door, more specifically, at the molding position of the airbag door, an injection product having the above-described airbag door through insert injection; For example, an airbag housing with an airbag door or an airbag door integral crash pad can be molded.

Registered Patent Publication No. 10-1776466, registered on September 1, 2017, crash pad integrated with airbag door and housing of vehicle and manufacturing method thereof Registered Patent Publication No. 10-1382329, registered on April 1, 2014, airbag housing for automobile and manufacturing method thereof

An object of the present invention is to provide an insert injection mold having a structure capable of stably mounting a scrim for reinforcement of an airbag door and maintaining an in-place position, and an injection molding manufacturing system having the same.

It is a specific object of the present invention to provide an injection-molded product manufacturing system for molding an injection-molded product having an airbag door, for example, an airbag door-integrated crash pad, in which scrim loading and injection molding are easy.

One aspect of the present invention provides an insert injection mold for manufacturing an injection-molded product having an airbag door, wherein a hinge reinforcement material for reinforcing a hinge portion of the airbag door is inserted in a cavity forming a molding space of the injection-molded product having the airbag door. a first mold for supporting the hinge reinforcing material loaded on the molding portion of the airbag door so as to be possible; And provides an insert injection mold including a second mold that can be combined with the first mold for mold closing. The first mold may advance and retreat to the core so as to maintain a position of a core for molding an injection-molded product having the airbag door and a hinge reinforcement loaded in a molding portion of the airbag door in a mold-open state. and a reinforcing material holding pin provided to do so; The reinforcing member mounting pin protrudes from the surface of the core to support the hinge reinforcing member through an alignment reference hole formed in the hinge reinforcing member, and is configured to be retractable by an external force pressing the tip of the reinforcing member mounting pin.

The core has a pin hole. And the reinforcing member holding pin is inserted into the pin hole so as to be moved forward and backward, and is supported in the front end direction of the reinforcing member holding pin.

The reinforcing member holding pin is elastically supported toward the front end direction of the reinforcing member holding pin by an elastic member provided in the pin hole. The reinforcing member mounting pin is retractable by the pressure of the resin filled in the cavity.

The tip of the reinforcing member mounting pin may have a round curved shape.

Another aspect of the present invention includes: an insert injection mold for manufacturing an injection product having an airbag door; and an insert movably provided on an outer side of the mold to load a mesh-shaped hinge reinforcing material for reinforcing the hinge portion of the airbag door to the molding portion of the airbag door provided in the mold when the mold is opened. It provides an injection molding manufacturing system including a device.

The insert device; a needle grip unit that pricks and picks up the hinge reinforcement to supply the hinge reinforcement from the outside of the mold to a molding part of the airbag door; and an operating device for moving the needle grip unit to convey the hinge reinforcement to the molding portion of the airbag door.

The needle grip unit is rotationally movable by the operation device.

The needle grip unit; A grip body having a plurality of needle holes, a needle supporter movably provided in the grip body, and axially movably inserted into the needle holes, the needle supporter It may include a plurality of gripping needles that are provided in the needle supporter and that move integrally with the needle supporter and can advance a predetermined distance from the front end surface of the grip body.

The needle supporter may include a pair of movable supporters provided to be movable in an oblique direction, respectively, on one side and the other side of the grip body. The pair of movable supporters are symmetrical with respect to the grip body.

The needle holes are; a first needle hole passing through the grip body in an oblique direction from one side of the grip body toward the front end surface of the grip body; and a second needle hole passing through the grip body in an oblique direction from the other side of the grip body toward the front end surface of the grip body. The inclination angle of the first needle hole and the inclination angle of the second needle hole may be symmetrical.

The injection-molded manufacturing system; The method may further include a take-out unit that is connected to the operating device to move integrally with the needle grip unit by the operating device, and blows out the injection molded product to the outside of the mold before the hinge reinforcement is loaded after the mold is opened.

The needle grip unit may be provided in the take-out unit, and may be connected to the operation device via the take-out unit.

On the outside of the mold, there is a box-shaped loading table on which a plurality of hinge reinforcements can be stacked up and down, and before the hinge reinforcements are loaded into the molding part of the airbag door, to measure the thickness of the hinge reinforcement, from the loading table A thickness measuring unit supplied with a sheet of hinge reinforcement is provided.

And, to be inserted into the alignment reference holes formed in the hinge reinforcement, the mounting base, the thickness measuring part, and the forming portion of the airbag door, respectively, at the same spacing as the alignment reference holes, loading reference pins and alignment pins, and The reinforcing material holding pins are formed.

The hinge reinforcing member may be aligned with the mounting base, the thickness measuring unit, and the molding portion of the airbag door based on the loading reference pins, the alignment pins, and the reinforcement mounting pins.

The mold for manufacturing an airbag door and an airbag door manufacturing system having the same according to the present invention have the following advantages.

First, according to the present invention, the mounting pin provided in the mold for mounting the hinge reinforcing material (scrim) for reinforcing the airbag door can protrude to a height sufficient for stable mounting of the scrim in the mold-opening state, so that the scrim is stable. As a result, the scrim can be mounted (inserted) in the mold and the scrim can be stably maintained, so that the scrim can be prevented from being separated in the molding process of the airbag door, and product defects due to the scrim can be prevented.

Second, according to the present invention, it is possible to prevent or minimize the formation of a through hole in the airbag door due to the mounting pin of the scrim, and it is possible to manufacture an injection product, that is, an injection product having an airbag door, without reducing the thickness.

Third, according to the present invention, the scrim can be easily loaded and positioned at the airbag door molding position in an automatic feeding method in the mold, and the injection product having the airbag door after insert injection, for example, the airbag door integrated crash pad is taken out (Unloading) and loading of the scrim can be performed automatically, easily and quickly.

The features and advantages of the present invention may be better understood with reference to the drawings described below in conjunction with the detailed description of the embodiments of the present invention described below, of which:
1 is a perspective view illustrating a crash pad as an example of an injection product having an airbag door that can be manufactured by an insert injection mold according to an embodiment of the present invention;
Fig. 2 is a partial perspective view showing an airbag door formed in the injection-molded product (crash pad) shown in Fig. 1;
Figure 3 is a side view showing a mold opening state of the mold for an embodiment of the mold according to the present invention;
Fig. 4 is a view schematically showing an airbag door forming part (forming part of the airbag door) of the mold shown in Fig. 3;
FIG. 5 is a view schematically showing a state in which a hinge reinforcement (scrim) is loaded (inserted) into the airbag door forming part shown in FIG. 4;
Fig. 6 schematically shows a cross section taken along line AA of Fig. 4;
7 is a view schematically showing a molding process of a scrim insert airbag door according to an embodiment of a mold according to the present invention;
8 is a perspective view showing an example of an insert device provided with an injection molding unit for an embodiment of the injection molding manufacturing system according to the present invention;
9 is a front view and a side view showing an example of an insert device provided with the injection molding unit shown in FIG. 8;
10 is a perspective view showing an embodiment of a needle grip unit applicable to the insert device shown in FIG. 8;
Fig. 11 is a front view and a side view of the needle grip unit shown in Fig. 10;
Fig. 12 is a perspective view showing a unit gripper of the needle grip unit shown in Fig. 10;
Fig. 13 is a side view of the unit gripper shown in Fig. 12;
14 is a side view schematically showing the operation of the injection molding machine / insert machine for the injection molding manufacturing system according to the present invention; And
15 is a block diagram showing the configuration of a saulchul manufacturing system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention in which the object of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiments, the same names and the same reference numerals are used for the same components, and an additional description thereof will be omitted below.

The terms used herein are used to describe embodiments of the present invention, and are not intended to limit the present invention. For example, terms including an ordinal number, such as "first" and "second", may be used to distinguish the elements of the same name from each other, but do not define or limit the number of elements.

And when a component is referred to as being “connected”, “connected” or “coupled” to another component, it may be directly connected to, connected to, or coupled to the other component. , it should be understood to include a connection relationship in which other components exist in the middle, that is, a relationship that is indirectly connected.

In this specification, terms such as "comprise" or "have" mean that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, and one or more other features However, it should be understood that the presence or addition of numbers, steps, operations, components, parts or combinations thereof does not exclude the possibility of addition.

First, an embodiment 100 of an insert injection mold according to the present invention will be described with reference to FIGS. 1 to 8 .

1 is a perspective view showing a crash pad as an example of an injection molded product having an airbag door that can be manufactured by an embodiment of an insert injection mold according to the present invention, and FIG. 2 is an airbag formed in the injection molding product (crash pad) shown in FIG. 1 . It is a partial perspective view showing a door, and FIG. 3 is a side view showing a mold opening state of a mold for an embodiment of the mold according to the present invention. And FIG. 4 is a view showing a molding part of the airbag door of the mold shown in FIG. 3, and FIG. 5 is a view showing a state in which a hinge reinforcement (scrim) is loaded (inserted) in the molding part of the airbag door shown in FIG. 6 is a view schematically showing a cross-section taken along line AA of FIG. 4, and FIG. 7 is a view schematically showing a molding process of a scrim insert airbag door according to an embodiment of a mold according to the present invention.

1 to 7 , the insert injection mold 100 according to an embodiment of the present invention is an injection product having an airbag door 1, for example, an airbag door-integrated crash pad 10 for automobiles. As an insert injection mold for this, it includes a first mold 110 and a second mold 120 .

In the first mold 110, a hinge reinforcing material 20 for reinforcing the hinge portion 1a of the airbag door is inserted in a cavity forming a molding space of the injection product 10 having the airbag door. ), the hinge reinforcing material 20 loaded on the molding area AD of the airbag door 1 is supported.

And the second mold 120 is a configuration that can be combined with the first mold 110 for mold closing (mold closing). In this embodiment, the first mold 110 is a movable mold, and the first mold 110 is a movable mold. The second mold 120 becomes a fixed-side mold.

The first mold 110 includes a core 111 for molding an injection product 10 having the airbag door 1 (hereinafter referred to as a 'crash pad'), and a core 111 to advance and retreat from the core 111 . It includes a reinforcing material holding pin 112 provided.

The core 111 serves as a frame for forming the shape of one side of the crash pad, and the crash pad 20 has a shape to which the core 111 is transferred.

In addition, the reinforcing member holding pin 112 maintains the position of the hinge reinforcing member 20 that is loaded into the molding portion AD (the portion shown in FIGS. 4 and 5 ) of the airbag door in the mold-opening state.

In the present embodiment, the reinforcing material holding pin 112 protrudes at a predetermined height from the surface of the core 111 in the mold-opening state, and penetrates the alignment reference hole 21 formed in the hinge reinforcing material 20 to the hinge reinforcing material. (20) is supported. And the reinforcing member holding pin 112 is configured to be retractable by an external force pressing the tip 112a of the reinforcing member holding pin 112 .

More specifically, a pin hole 111a is formed in the core 111 . And the reinforcing material holding pin 112 is inserted into the pin hole 111a so as to move forward and backward, and is supported in the front end direction of the reinforcing material holding pin 112 .

In this embodiment, the reinforcing material holding pin 112 is elastically supported in the front end direction of the reinforcing material holding pin 112 by the elastic member 113 provided in the pin hole 111a. The reinforcing member mounting pin 112 is retractable by the pressure of the resin (R; injection material) filled in the cavity (C).

In other words, when the force applied to the tip of the reinforcing member holding pin 112 by the injection pressure exceeds the force of the elastic member 113, the reinforcing member holding pin 112 is retracted and the protrusion height is lowered, Accordingly, the formation of a through hole by the reinforcing material holding pin 112 in the crash pad, particularly in the airbag door portion, may be prevented or minimized. An example of the elastic member 113 is a coil spring.

In this embodiment, the tip of the reinforcing member holding pin 112 has a round curved shape, for example, a semi-ellipsoidal shape or a hemispherical shape, but is not limited thereto.

As the hinge reinforcing material 20, a rectangular member in the form of a mesh or a fabric is known, and a mesh-type wrapping material is used as a hinge reinforcing material, and is also referred to as a scrim. In addition, the airbag door may be formed by a slide core provided in the core.

Referring to FIG. 7 , as shown in FIG. 7A , in the mold-opening state, the hinge reinforcement 1 is loaded on the core of the first mold 110 , more specifically, the molding portion of the airbag door, and the reinforcement holding pin 112 . The position of the hinge reinforcement 20 is maintained by the

As described above, when the first mold 110 and the second mold 120 are combined in a state in which the hinge reinforcement is inserted into the first mold 110, the mold closing (refer to (b) of FIG. 7) is made, When the resin (injection material; molten plastic) is injected into the cavity C in the mold-closed state as shown in FIG. 7(c), an airbag door-integrated crash pad 10 having a structure in which the hinge reinforcement 20 is embedded, more specifically, the passenger seat An airbag door-integrated crash pad may be molded. At this time, the reinforcing material holding pin 112 may be lowered in protrusion height as it is retracted by the pressure of the resin, and the formation of a hole (through hole) in the airbag door due to the reinforcing material holding pin 112 is prevented, or the reinforcing material is mounted. The formation of grooves by the pins can be minimized.

The present invention includes an insert injection mold 100 for manufacturing an injection molded product having an airbag door, and an insert device for pre-inserting the above-described hinge reinforcement 20 into a predetermined portion of a cavity in the mold (a molding portion of the airbag door) It can also be implemented as an injection molding manufacturing system.

In the insert injection mold for the injection molding system, the embodiment 100 of the above-described mold may be applied, but it is not limited thereto, and it is also present in a mold having a fixed reinforcement holding pin 112 having a structure in which axial movement is restricted. An insert device according to an embodiment of the invention, more specifically, an insert device equipped with an injection molding machine may be used.

8 to 14 , in the insert device, the mold 100 is loaded with the mesh-shaped hinge reinforcing material 20 described above at the time of mold opening into the molding portion AD of the airbag door. It is movably provided on the outer side of the.

The insert device includes a needle grip unit 200 and an operation device M for moving the needle grip unit 200 .

The needle grip unit 200 is configured to pierce the hinge reinforcement 20 to supply the above-described hinge reinforcement 20 from the outside of the mold to the molding area AD of the airbag door.

And the operation device M rotates and linearly moves the needle grip unit 200 in order to transport the hinge reinforcement 20 to the molding part of the airbag door 1 to position the needle grip unit. As a configuration for changing the and posture, for example, a robot arm with multiple degrees of freedom may be applied as the operation device M. As shown in FIG.

The needle grip unit 200 is rotatably movable by the operation device M, and the hinge reinforcement 20 is located at a predetermined position outside the mold, for example, the mounting table 400 of the hinge reinforcement or the thickness measuring unit 500 . ) and load it on the molded part of the airbag door.

In the present embodiment, the needle grip unit 200 includes a grip body 210; a grip body; a needle supporter 220; and a plurality of gripping needles 230;

The grip body 210 has a plurality of needle holes 211, and when the needle grip unit 200 picks up the hinge reinforcement 20, it is in contact with one side of the hinge reinforcement 20. can be

And the needle supporter 220 is movably provided on the grip body 210, and supports the needle 230 for the grip. In this embodiment, the needle hole 211 has a structure penetrating the grip body 210 in an oblique direction.

The grip needle 230 is movably inserted into the needle hole 211 in the axial direction (longitudinal direction), and is provided in the needle supporter 220 so that it behaves integrally with the needle supporter 220 . That is, the grip needle 230 is mounted on the needle supporter 220 so as to be provided in the needle hole 211 of the grip body to advance and retreat a certain distance from the front end surface of the grip body 210 . Do. The forward/backward distance of the grip needle 230 is determined by the stroke of the needle spotter 220 .

The needle supporter 220 may include a pair of movable supporters 221 and 222 that are respectively provided on one side and the other side of the grip body 210 to be movable in an oblique direction.

In this embodiment, the pair of movable supporters 221 and 222 are symmetrical with respect to the grip body 210 . More specifically, the needle supporter 220 includes a first supporter 221 provided on one side of the grip body 210 and the other side of the grip body 210 (opposite side of the first supporter). It includes a second supporter 222 provided in the.

The first supporter 221 is provided on one side of the grip body 210 to be linearly movable in an oblique direction along a predetermined inclination angle. The second supporter 222 is provided on the other side of the grip body 210 and is linearly movable in an oblique direction along a path symmetrical left and right to the movement path of the first supporter 221 .

Accordingly, when the first supporter 221 is movably provided on one side of the grip body 210 at an angle of (+θ) with respect to a surface perpendicular to the front end surface of the grip body 210 , the first supporter 221 . 2 The supporter 222 is provided to be movable along an oblique direction on the other side of the grip body 210 at an angle of (−θ) with respect to a surface perpendicular to the front end surface of the grip body 210 .

And the needle hole 211 is. It includes a first needle hole 211a and a second needle hole 211b inclined in opposite directions. For example, the first needle hole 211a and the second needle hole 211b pass through the needle body 210 at an inclination angle symmetrical to each other.

More specifically, the first needle hole 211a passes through the grip body 210 in an oblique direction from one side of the grip body 210 toward the front end surface of the grip body 210 . In addition, the second needle hole 211b passes through the grip body 210 in an oblique direction from the other side of the grip body 210 toward the front end surface of the grip body 210 .

That is, the first needle hole 211a is formed at the same angle as the movement direction of the first supporter 221 , and the second needle hole 211b is formed at the same angle as the movement direction of the second supporter 222 . is formed with

A plurality of the first needle hole 211a and the second needle hole 211b are formed in the grip body. The grip needle 230 includes a plurality of first needles 231 provided in the first supporter 221 and a plurality of second needles 232 provided in the second supporter 222 . do.

The first supporter 221 and the second supporter 222 are assembled on one side and the other side of the grip body 210 so that they can linearly move in an oblique direction, in this embodiment, one side of the grip body 210 and On the other side, the supporter installation surfaces in a symmetrical relationship are formed to be inclined.

Accordingly, when the first supporter 221 and the second supporter 222 move forward, the gripping needle, that is, the first needle 231 and the second needle 232, is connected to the front end surface of the grip body 210 ( 210a) protrudes (refer to (b) of FIG. 13), and thus a grip on the hinge reinforcement can be made. Conversely, when the first supporter 221 and the second supporter 222 are retracted, the needle 230 comes out of the hinge reinforcement 20 , so that the grip on the hinge reinforcement 20 is released. . The first supporter 221 and the second supporter 222 may be operated by various methods such as hydraulic pressure, pneumatic pressure, or a linear motor.

In this embodiment, the needle grip unit 200 includes a plurality of unit grippers 200A having the aforementioned grip body 210 , the needle supporter 220 , and the grip needle 230 . For example, a plurality of unit grippers 200A having the grip body 210 , the needle supporter 220 , and the gripping needle 230 are dividedly disposed on the grip base 201 . In this embodiment, the grip base 201 has a rectangular plate shape, and four unit grippers 200A are mounted on the front surface of the grip base 201 , but the shape of the grip base and the shape of the unit gripper The number is not limited thereto.

An example of the individual unit gripper 200A is shown in FIGS. 12 and 13 , and as shown in FIG. 13 ( b ), in a state where the hinge reinforcement 20 is in contact with the front end surface of the grip body 210 , the needle supporter 220 is When moving forward, the gripping needles 230 protrude from the front end surface of the grip body 210 in an oblique direction and stab the hinge reinforcing material 20, thereby forming a grip on the hinge reinforcing material 20.

The above-described injection-molded product manufacturing system may further include a take-out unit 300 for taking out the injection-molded product, that is, the clappad 10 , to the outside of the mold 100 after the mold opening and before loading of the hinge reinforcement 20 . The take-out unit 300 is connected to the operation device M so that it moves integrally with the needle grip unit 200 by the operation device M.

In this embodiment, the needle grip unit 200 is provided on one side of the take-out unit 300, and is connected to the operation device M via the take-out unit 300 as a medium.

More specifically, the take-out unit 300 includes a holder 310 that holds the crash pad 10 for taking out the crash pad 10 , and a holder supporter that supports the holder 310 . (320). The holder 310 is caught by the edge of the crash pad 10 or a hole or groove formed in the crash pad 10 so that the take-out unit 300 can lift the crash pad 10 , and the holder 310 may have a structure that can be moved up and down and/or left and right along a guide (not shown) by a cylinder or a linear motor, or rotatable by a rotating device such as a motor.

In the present embodiment, the extraction unit 300 includes a plurality of holders 311 , 312 , and 313 . For example, the holder supporter 320 is provided on the left and right sides of the holder supporter 320 and both sides of the holder 311 and 312 that are movable left and right are gathered and the left and right edges of the crash pad 10 are held, and the holder supporter 320 of The lower holder 313 that is provided at the lower portion and can be lifted rises to support the lower portion of the crash pad 10, but is not limited thereto.

In addition, the ejection unit 300 may further include at least one adsorber 330 that applies a suction force to the surface of the crash pad 10 , that is, a suction unit by negative pressure. The adsorber 330 is provided in the holder supporter 320 described above, and may be configured to be movable up and down and/or left and right using a known linear motion mechanism. Accordingly, the take-out unit 300 in the present embodiment may hold the crash pad 10 with a stronger and more stable force and take it out to the outside of the mold.

In this embodiment, the holder supporter 320 is a substantially rectangular frame supporting the holder 310 and the adsorber 330, and the holder supporter 320 includes the holder supporter 320 and an operating device ( M) For example, a coupling plate 340 for connection of a robot arm is provided.

14 and 15 , the injection molding manufacturing system according to the present embodiment includes a mounting table 400 of a hinge reinforcement, a thickness measurement unit 500 , an insert injection mold 100 , and a needle grip unit 200 . ) may include an integrated take-out unit 300 and a take-out stand (600).

A plurality of hinge reinforcements are stacked up and down inside the loading table 400 , and a plurality of loading tables may be provided on a rotary table 401 rotatable by a predetermined angle by a rotary index. And the take-out table 600 is a portion on which injection molding is completed is placed.

And when the hinge reinforcing material 20 of the sheet is transported to the thickness measuring unit 500 from the mounting table 400 , the thickness measuring unit 500 measures the thickness of each hinge reinforcing material. For example, by a separate needle grip unit, for example, a needle grip unit (not shown) having at least one unit gripper so as not to interfere with a loading reference pin to be described later, the thickness measuring unit in the mounting table 400 Transport of the hinge reinforcement can be made to (500).

Loading the hinge reinforcement 20 from the thickness measuring unit 500 to the insert injection mold 100, and taking out the injection product (crash pad; 10) from the insert injection mold 100 to the take-out table 600 ( Unloading) is made by the aforementioned needle grip unit 200 integrated take-out unit 300 .

The loading table 400 is a box structure, for example, a square box structure, with an upper side open to enable loading and unloading of the hinge reinforcement 20, and the hinge reinforcement material ( 20) is provided with loading reference pins 410 for alignment and stacking, and the relative positions and distances between the loading reference pins 410 are the same as the relationship between the alignment reference holes 21 of the hinge reinforcement (scrim). For example, from the bottom of the loading table 400, the loading reference pins 410 of the same number (four in this embodiment) and the arrangement interval as the reinforcement holding pins 112 in the vertical direction are formed to protrude. And alignment pins 510 are formed to protrude from the measurement table of the thickness measuring unit 500 as well as the loading reference pins 410 and the reinforcement mounting pins 112 in the same number and spacing.

Accordingly, the hinge reinforcement 20 is based on the loading reference pin 410 of the loading table, the alignment pin 510 of the thickness measuring unit 500, and the reinforcement holding pin 112 of the mold (first mold). It can be transported and aligned in an accurate position, and when it is transported from the loading table 400 to the thickness measuring unit 500, it is defined based on the loading reference pin 410 and the alignment pin 510 of the thickness measuring unit is positioned, and even when the thickness measuring unit 112 is loaded into the airbag door forming region AD of the first mold, the alignment pin 510 of the thickness measuring unit and the reinforcement holding pin of the mold (first mold) ( 112) may be aligned in place.

As described above, to be inserted into the alignment reference holes 21 formed in the hinge reinforcement 20, the mounting table 400, the thickness measuring unit 500, and the forming portion AD of the airbag door, respectively, At the same spacing as the alignment reference holes 21 , the above-described loading reference pins 410 , alignment pins 510 , and the reinforcement mounting pins 112 are formed.

Accordingly, the hinge reinforcement 20, the loading reference pins 410, the alignment pins 510, and the reinforcement mounting pins 112 based on the loading table 400 and the thickness measuring unit 500 And it may be aligned with the molding area (AD) of the airbag door.

As a thickness measuring device applied to the thickness measuring unit, various known thickness measuring techniques such as a thickness measuring device using a Linear Variable Differential Transformer (LVDT) may be applied, and thus an additional description of the thickness measuring device itself is omitted.

As in the example shown in FIG. 14 , the crash pad 10 is separated from the core 111 of the first mold 110 by the take-out unit 300 first (upper view in FIG. 14 ), and then the robot described above The position/positional change (linear and rotational movement) of the needle grip unit 200 integrated take-out unit 300 is made by an operating device such as an arm, and the needle grip unit 200 as in the example shown in the lower part of FIG. 14 . ) approaches the molded part of the airbag door, and the hinge reinforcement 20 is loaded onto the molded part of the airbag door.

As described above, the embodiments according to the present invention have been reviewed, and the fact that the present invention can be embodied in other specific forms without departing from the spirit or scope of the present invention other than the above-described embodiments is recognized by those with ordinary skill in the art. It is self-evident to

Therefore, the above-described embodiments are to be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the above description, but may be modified within the scope of the appended claims and their equivalents.

100: insert injection mold 110: first mold
111: core 112: reinforcing material mounting pin
113: elastic member 120: second mold
200: needle grip unit 210: grip body
220: needle supporter 230: needle for grip
300: takeout unit 310: holder
320: holder supporter 330: adsorber
340: coupling plate

Claims (15)

An insert injection mold for the production of an extrudate having an airbag door, comprising:
a first mold supporting the hinge reinforcing material loaded on the molding portion of the airbag door so that a hinge reinforcing material for reinforcing the hinge portion of the airbag door is inserted into a cavity forming a molding space of the injection-molded product having the airbag door; And
a second mold that can be combined with the first mold for mold closing;
The first mold is
a core for molding an injection product having the airbag door;
and a reinforcing material holding pin provided to the core so as to maintain the position of the hinge reinforcing material loaded on the molding portion of the airbag door in the mold-opening state;
The reinforcing member holding pin protrudes from the surface of the core to support the hinge reinforcing member through an alignment reference hole formed in the hinge reinforcing member, and is retractable by an external force pressing the tip of the reinforcing member holding pin. Insert injection mold with door. According to claim 1,
The core has a pin hole;
The reinforcing material holding pin is inserted into the pin hole so as to be moved forward and backward, and is supported in the front end direction of the reinforcing material holding pin. 3. The method of claim 2,
The reinforcing material holding pin is an insert injection mold, characterized in that it is elastically supported toward the front end of the reinforcing material holding pin by an elastic member provided in the pin hole. 4. The method according to any one of claims 1 to 3,
The reinforcing material holding pin, insert injection mold, characterized in that retractable by the pressure of the resin filled in the cavity. 5. The method of claim 4,
The tip of the reinforcing member mounting pin is an insert injection mold, characterized in that it has a round curved surface. an insert injection mold for the production of an extrudate having an airbag door; and
In order to load a mesh-shaped hinge reinforcing material for reinforcing the hinge portion of the airbag door to the molding portion of the airbag door provided in the mold at the time of mold opening, an insert device movably provided on one side of the outside of the mold As an injection molding manufacturing system comprising:
The insert device;
a needle grip unit that pricks and picks up the hinge reinforcement to supply the hinge reinforcement from the outside of the mold to a molding part of the airbag door; and
and an operation device for moving the needle grip unit to transport the hinge reinforcement to the molding part of the airbag door. 7. The method of claim 6,
The needle grip unit is an injection-molded product manufacturing system, characterized in that it is rotatable by the operation device. 7. The method of claim 6,
The needle grip unit;
A grip body having a plurality of needle holes,
A needle supporter movably provided on the grip body, and
A plurality of gripping needles that are axially movably inserted into the needle holes, are provided in the needle supporter, behave integrally with the needle supporter, and advance a certain distance from the front end surface of the grip body. Injection molding system, characterized in that. 9. The method of claim 8,
The needle supporter is an injection molding system, characterized in that it includes a pair of movable supporters provided on one side and the other side of the grip body to be movable in an oblique direction, respectively. 10. The method of claim 9,
The pair of movable supporters are symmetrical with respect to the grip body. 10. The method of claim 9,
The needle holes are;
a first needle hole passing through the grip body in an oblique direction from one side of the grip body toward the front end surface of the grip body;
and a second needle hole passing through the grip body in an oblique direction from the other side of the grip body toward the front end surface of the grip body. 9. The method of claim 8,
The injection molding system, characterized in that the inclination angle of the first needle hole and the inclination angle of the second needle hole are symmetrical. 13. The method according to any one of claims 6 to 12,
and a take-out unit that is connected to the operation device and moves integrally with the needle grip unit by the operation device, and takes out the injection-molded product to the outside of the mold before the hinge reinforcement is loaded after the mold is opened. system. 14. The method according to any one of claims 6 to 13,
The needle grip unit is provided in the take-out unit and is connected to the operation device via the take-out unit. 14. The method according to any one of claims 6 to 13,
On the outside of the mold,
A box-type loading stand on which multiple hinge reinforcements can be stacked up and down,
a thickness measuring unit receiving a sheet of hinge reinforcement from the loading stand is provided to measure the thickness of the hinge reinforcement before the hinge reinforcement is loaded into the molding portion of the airbag door;
In order to be inserted into the alignment reference holes formed in the hinge reinforcement, the loading reference pins, the alignment pins, and the reinforcement material are respectively disposed at the same spacing as the alignment reference holes in the mounting table, the thickness measuring unit, and the molding portion of the airbag door. hold pins are formed;
The hinge reinforcing material is aligned with the mounting base, the thickness measuring unit, and the molding portion of the airbag door, based on the loading reference pins, the alignment pins, and the reinforcing material mounting pins.

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