KR102293689B1 - Heat cutting and covering apparatus for center pannel of vehicle - Google Patents

Abstract

The present invention relates to a heat cutting and covering apparatus for vehicle internal materials, comprising: a work plate having a glidable jig holding vehicle internal materials including a hard substrate having one or more engagement holes and a cover material bonded and laminated on a surface of the substrate; a cutting cylinder providing the reciprocating motion of a cutting unit upward and downward toward the vehicle internal materials; a support cylinder providing the reciprocating motion of a support unit upward and downward toward the vehicle internal materials, and being placed to be apart from the cutting cylinder upward and downward on the same axial line. More specifically, the present invention is configured to be able to insert the vehicle internal materials having a laminated structure of the substrate and the cover material between the cutting cylinder and the support cylinder, move the heated coating unit downward and the support unit upward, pressurize from both sides of the cover material, and perform a heat cutting process.

Description

Heat cutting and covering apparatus for center pannel of vehicle}

The present invention relates to a thermal cutting and wrapping apparatus for automobile interior materials, and more particularly, to a thermal cutting apparatus for perforating and removing a skin material formed on a panel of an automobile door.

In automobiles, interior materials are attached to the inside of doors and dashboards. In general, the interior material of a vehicle is composed of a hard base material and a soft skin material in a lamination method, and may be applied to an inner panel of a vehicle door as a center panel to decorate the interior of the interior. In addition, the interior material of the vehicle may be employed in a dashboard between the windshield and the seat.

For example, a mounting hole for installing a speaker grill, an inside handle, and the like is formed in the center panel of the door. In other words, the hard substrate forms a coupling hole that allows the assembly of speaker grills, inside handles, etc. during injection molding, and as described in Patent Document 1, it is attached to the outer surface of the plastic injection molded substrate through a separate bonding process. Adhere the skin material made of fabric or leather fabric.

However, due to the process characteristics such as having to wrap the elastic skin material in the front and back of the bonding hole, the substrate and the skin material are adhered first, and then manually A method in which a skin material such as leather is perforated and wrapped is preferred.

Since the bonding hole of the base material after bonding of the skin material is sealed with the leather fabric as illustrated in FIG. 6, the operator must go through a cumbersome process such as manually cutting the leather fabric covered with the bonding hole one by one.

This prior art cuts the leather fabric to correspond to the bonding hole of the substrate with scissors, etc., but cuts it to a shape smaller than the size of the bonding hole, and then cuts it into a spherical sawtooth shape up to the size of the bonding hole. It may include the process of forming a cutting line of the and then wrapping. The process such as cutting has to depend on manual work, and there are problems in that the possibility of defects increases due to the nature of the leather having an elongation, and excessive work time is required.

Republic of Korea Patent Registration No. 10-2088948

The present invention was created to solve the above problems, and an object of the present invention is to provide an apparatus capable of easily and efficiently forming a cut line of a skin material corresponding to a bonding hole of a substrate.

In addition, the present invention may further provide a device capable of even wrapping the cut portion of the skin material by adhesively fixing it to the inner circumferential surface of the substrate.

In order to achieve the above object, a thermal cutting device for automobile interior materials according to a preferred embodiment of the present invention is mounted on a rigid substrate having one or more coupling holes and an automobile interior material laminated with a skin material bonded to the surface of the substrate and slides. a working plate with a possible jig; a cutting cylinder that provides up-and-down reciprocating movement of the cutting part toward the interior of the vehicle; and a support cylinder that provides vertical reciprocation of the support toward the interior of the vehicle, and is disposed to be spaced apart from each other in the vertical direction on the same axis as the cutting cylinder.

In particular, the present invention is designed so that the heat cutting method can be performed simultaneously with pressing from the other surface of the skin material to the cutting part of the cutting cylinder while being supported by the support part of the support cylinder on one surface of the skin material covered with the coupling hole.

In an embodiment of the present invention, the cutting cylinder includes an operating rod that reciprocates up and down; a cutting part for forming and cutting a cutting line on the skin material; and a gap maintaining unit interposed between the operation rod and the cutting unit, wherein the cutting unit may include a coupling plate, a heater, and a cutting blade.

The interval maintaining unit of the cutting cylinder may further include a plurality of heat dissipation fins protruding at predetermined intervals on the outer circumferential surface along the longitudinal direction.

Preferably, the cutting blade may include a loop-type cutting blade formed in a shape corresponding to the shape of the coupling hole of the substrate, and a plurality of radial cutting blades extending in a radial direction from the loop-type cutting blade.

In an embodiment of the present invention, the support cylinder includes an operating rod that reciprocates up and down; a support for supporting the skin material; and a gap maintaining part interposed between the operation rod and the support part, wherein the support part may include a header having a built-in coupling plate and a heater.

The gap maintaining unit of the support cylinder may further include a plurality of heat dissipation fins protruding at predetermined intervals on the outer circumferential surface along the longitudinal direction.

Thermal cutting device for automobile interior material according to another embodiment of the present invention is to further arrange a pair of upper cylinder and lower cylinder on one side of a pair of cutting cylinders and support cylinders arranged to be spaced apart from each other in the vertical direction on the same axis. , Here, the upper cylinder has an operation rod and a convex portion disposed at the tip of the operation rod, and can provide vertical reciprocation of the convex portion toward the interior of the vehicle. In addition, the lower cylinder may have an operating rod and a recess disposed at the tip of the operating rod, and may provide vertical reciprocation of the recess toward the interior of the vehicle. Of course, the lower cylinder may be disposed to be spaced apart from each other in the vertical direction on the same axis as the upper cylinder.

In an embodiment of the present invention, the recessed portion may include a concave portion for accommodating the end of the convex portion, and an inclined side surface that becomes wider upward.

The features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Prior to this, the terms or words used in the present specification and claims should not be construed in a conventional and dictionary meaning, and the inventor may properly define the concept of the term to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

According to the present invention, the skin material can be perforated by a thermal cutting method by heating the cutting portion and the support portion in contact with both sides of the skin material to be perforated at a high temperature in the automobile interior material. This thermal cutting method can cleanly finish the cut surface of the skin material. In addition, compared to the conventional method of perforating the skin material by hand, it is possible to expect a reduction in the man-hours and working hours, and mass production can be expected.

In addition, it has the advantage of being able to provide a perforation facility at a relatively low cost compared to an expensive laser cutting method. And in the laser cutting method, the laser spot must be moved continuously along the cutting line, and it will take a long time to form many teeth along the inner periphery of the perforation of the skin material. Because it cuts, it has the advantage of better productivity.

As described above, the present invention has an advantage in that it can solve the problem that the cutting part loses heat to the skin material and the supporting part during the cutting process by heating the support part together with the cutting part.

In addition, the present invention may provide an advantage of in-line batch processing of the wrapping process together with the punching process.

1 is a perspective view schematically illustrating an inside of a vehicle door on which a center panel is mounted.
2 is a side view schematically illustrating a thermal cutting device for automotive interior materials according to a preferred embodiment of the present invention.
3 is a view schematically showing the main part of the cutting cylinder, FIG. 3 (a) is a perspective view of the cutting part viewed from above, and FIG. 3 (b) is a bottom view of the cutting part.
4 is a view schematically showing a main part of the support cylinder, and is a perspective view of the support part viewed from above.
5 is a state diagram of a process of loading an automobile interior material (eg, a center panel) between the cutting cylinder and the supporting cylinder, and illustrates by cross-sectional processing of some components such as a jig, a substrate, and a skin material to help a clear understanding of the drawing; have.
6 is a perspective view of the interior of the vehicle viewed from below so that the state of the center panel can be checked during the charging step of FIG. 5 .
7 is a state diagram of a process of perforating a skin material of an automobile interior material, and illustrates a cross-sectional treatment of some configurations of a jig, a base material, a skin material, etc. to help a clear understanding of the drawing.
8 is a perspective view of the interior of the vehicle viewed from below so that the state of the center panel can be checked after the drilling step of FIG. 7 .
9 is a state diagram of a process of bonding the skin material of an automobile interior material, and illustrates some configurations of a jig, a base material, a skin material, etc. by cross-section processing to help a clear understanding of the drawing.
10 is a perspective view of the interior of the vehicle viewed from below so that the state of the center panel can be checked after the bonding step of FIG. 9 .

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and examples taken in conjunction with the accompanying drawings. In the present specification, in adding reference numbers to the components of each drawing, it should be noted that only the same components are given the same number as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In this specification, terms such as first, second, etc. are used to distinguish one component from another component, and the component is not limited by the terms. In the accompanying drawings, some components are exaggerated, omitted, or schematically illustrated, and the size of each component does not fully reflect the actual size.

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

1 is a perspective view schematically illustrating an inside of a vehicle door on which a center panel is mounted.

As shown, the car door has a center panel (P) installed on the inner panel. The center panel (P) is one of the interior materials of a vehicle in which the speaker (S), the inside handle (H), etc. can be seated, as is widely known to those skilled in the art. In the detailed description of the present invention, it is disclosed in advance that the description is mixed with the center panel instead of the interior material of the vehicle.

As described above, the center panel (P) includes a rigid substrate (Pa) injection-molded so that a speaker (specifically, a speaker grill) or an inside handle can be seated and combined, and a rigid substrate to decorate the interior exterior of the door. (Pa) They are arranged in a laminated structure of a soft skin material (Pb) adhered to the surface (see FIG. 6 ). The center panel forms one or more mounting holes for mounting various parts such as a speaker grill and an inside handle.

Here, the substrate Pa may be, for example, an insert injection-molded plastic injection product, and forms a coupling hole Pa' defining a mounting hole of the center panel.

The skin material (Pb) may be a leather fabric that is laminated on the surface of the substrate to improve the feel of the center panel and interior aesthetics. Without being limited thereto, the skin material may be a fabric, an artificial leather fabric (leather), or the like.

Optionally, the center panel may interpose a foam providing a cushioning force between the substrate (Pa) and the skin material (Pb).

2 to 10, a thermal cutting device for automotive interior materials (hereinafter, referred to as thermal cutting device) according to a preferred embodiment of the present invention is a center panel (P) in which a skin material (Pb) is bonded to a surface of a hard substrate (Pa). ) is arranged between the cutting cylinder 200 and the support cylinder 300, so that only the skin material covering the bonding hole of the substrate can be accurately removed by the downward movement of the cutting cylinder and the upward movement of the support cylinder.

To this end, the thermal cutting device of the present invention includes a working plate 100, a cutting cylinder 200 that is disposed on the working plate and provides up and down reciprocating movement of a cutting unit 220 that forms a cutting line in the skin material, and cutting It consists of a support cylinder 300 disposed under the working plate opposite to the cylinder 200 . The cutting cylinder 200 may be installed in the fixed frame 110 so as to be spaced apart from the working plate 100 .

The working plate 100 is a component that supports and holds the cutting cylinder 200 and the supporting cylinder 300 as described above while allowing the movement of the center panel (P; or automobile interior material) on the working plate. The center panel (P) is seated on the jig (120) slidably arranged on the work plate (100), preferably the upper surface of the jig (120) is formed in a shape corresponding to the base surface of the center panel (P) Thus, it is possible to prevent separation and separation of the center panel even during the movement or processing of the jig 120 by matching between the jig and the center panel.

The jig 120 may form a hollow receiving hole 121 in the thickness direction to allow the reciprocating movement of the cutting unit 220 of the cutting cylinder 200 or the supporting unit 320 of the supporting cylinder 300. . In addition, the present invention provides a cutting portion 220 of the cutting cylinder 200 and the supporting portion of the supporting cylinder 300 on the same axis of the cutting cylinder 200 and the supporting cylinder 300 spaced apart from each other based on the working plate. A hollow through hole (not shown) may be formed in the thickness direction of the working plate to allow the reciprocating movement of the 320 . Here, the present invention is provided with a receiving hole 121, a through hole 101, a cutting cylinder 200, and a support cylinder 300 equal to the number of coupling holes (Pa ') perforated in the base of the center panel. it would be preferable

In the present invention, the jig 120 is installed on various types of moving bogies that can align the coupling hole Pa' and the receiving hole 121 of the substrate on the axis of the cutting cylinder 200 and the support cylinder 300 . and can be easily slidably provided on the working plate.

The cutting cylinder 200 is provided with an operation rod 210 for reciprocating the cutting unit 220 in the vertical direction toward the upper surface of the center panel (P) seated on the jig as shown. The front end of the operation rod 210 arranges a cutting portion 220 for cutting the skin material (Pb) of the center panel (P).

The cutting unit 220 forms a cutting line in the skin material and cuts it correspondingly to the coupling hole Pa' of the substrate Pa, and includes a coupling plate 221, a heater 222, and a cutting blade 223. do. The coupling plate 221 provides a space for supporting the heater 222 and the cutting blade 223 while being coupled to the front end of the operation rod 210 as described above. The heater 222 is disposed on the bottom surface of the coupling plate 221 , and may heat the cutting blade 223 by applying power. Optionally, the cutting part 220 is disposed on the upper surface of the coupling plate 221 for the temperature sensor 224 . The present invention heats the coupling plate 221 together with the cutting blade 223 through the heat of the heater, and the temperature sensor 224 measures the temperature of the coupling plate 221 (or heater, cutting blade) When the coupling plate and/or the cutting blade is heated above the set temperature, the power supplied to the heater is cut off to prevent overheating of the cutting unit 220 . The heater may apply (on) and cut off (off) the power to constantly maintain a predetermined temperature in the cutting blade (223).

Optionally, the cutting cylinder 200 interposes an elongated gap maintaining part 230 between the operation rod 210 and the cutting part 220 . The gap maintaining unit 230 may couple the cutting unit 220 and the operation rod 210 to be spaced apart from each other. That is, the gap maintaining unit 230 may provide a separation distance between the operation rod and the cutting unit so that the heat of the cutting unit 220 is not transmitted to the main body of the cutting cylinder. In addition, the gap maintaining unit 230 may include heat dissipation fins 231 protruding at predetermined intervals on the outer circumferential surface along the longitudinal direction thereof.

The cutting cylinder 200 heats while pressing the other surface of the skin material Pb of the center panel P seated on the jig 120 with the cutting blade 223 through the descending movement of the operation rod 210 from the upper side to the lower side. By cutting, the skin material can be perforated to correspond to the bonding hole of the substrate. As described above, the cutting blade 223 is at a temperature sufficient to cut the skin material by means of the heater 222, preferably the melting temperature of the skin material (in the case of a multi-layer structure, the melting temperature of the material having the highest melting temperature) is 10. ~20% lower. If it is 10 to 20% lower than the melting temperature of the skin material, the cross section after cutting has the advantage of being clean. For example, the temperature of the cutting blade 223 may be heated to 215° C. in the case of artificial leather.

The cutting blade 223 is, for example, circular, oval, square, trapezoidal, etc. of various shapes, such as a loop (loop) type cutting blade (223a) and a plurality of radially extending from the loop type cutting blade (223a) in the radial direction. It consists of a cutting blade (223b). Preferably, the loop-type cutting blade 223a may be formed in a shape corresponding to the shape of the coupling hole Pa' of the substrate Pa. In addition, the plurality of radial cutting blades 223b may be spaced apart at equal intervals along the circumference of the loop-type cutting blade 223a. On the other hand, the plurality of radiation cutting blades 223b may be selectively disposed around the loop-type cutting blade corresponding to the bent portion of the coupling hole, but not limited thereto, and may be disposed around the loop-type cutting blade in various arrangement patterns. can

In addition, the present invention makes the arrangement range of the radial cutting blade 223b and the loop-type cutting blade 223a to have a size smaller than the coupling hole Pa' so that the cutting blade 223 of the cutting cylinder 200 is coupled to the substrate. Penetrates the ball (Pa') to help heat-cut the skin material.

In the present invention, the cutting cylinder 200 and the support cylinder 300 arranged to be spaced apart from each other in the vertical direction as described above are positioned under the working plate 100 . Preferably, the support cylinder 300 is arranged coaxially with the cutting cylinder 200 .

The support cylinder 300 is provided with an operation rod 310 for reciprocating the support part 320 in the vertical direction toward the base surface of the center panel (P) seated on the jig 120, as shown. The distal end of the actuating rod 310 arranges a support part 320 for supporting the underside of the skin material Pa covering the coupling hole Pa' of the substrate Pa.

The support part 320 is formed in a shape corresponding to the coupling hole Pa' of the substrate, and includes a coupling plate 321 and a header 322 .

The coupling plate 321 is coupled to the distal end of the actuating rod 310 while providing a space for supporting the header 322 . The header 322 is disposed on the bottom surface of the coupling plate 321, and the coupling plate is formed in a shape corresponding to the shape of the coupling hole Pa' of the substrate Pa as shown, while supporting the skin material. It has a flat structure. In addition, the header 322 may further include a heater (not shown) to heat the header to a predetermined temperature. Optionally, the support part 320 may be disposed on the lower surface of the coupling plate 321 with a temperature sensor (not shown). In the present invention, the coupling plate 321 is heated together with the header 322 through the heat of the heater, and the temperature sensor measures the temperature of the coupling plate 321, etc. When heated, the power supplied to the heater is cut off to prevent overheating of the header 322 .

The present invention is located in the inner region of the coupling hole Pa' through the coupling plate 321 having a header and supports upwardly one surface of the skin material (Pb) to be cut by the cutting blade 223. By heating the skin material, it helps the perforation of the skin material. For reference, the header 322 may be heated to the same temperature as the heating temperature of the cutting blade 233 or may be set lower than the heating temperature of the cutting blade 233 .

The header 322 may be disposed on the coupling plate 321 to correspond to the arrangement range of the loop-type cutting blade 223a and the radial cutting blade 223b of the cutting blade 223 . In addition, in the present invention, the support portion 320 is a through hole 101 of the working plate 100, the receiving hole 121 of the jig 120, and a size capable of reciprocating up and down along the inside of the coupling hole Pa' of the substrate. The skin material to be formed and cut out and the cutting blade 223 are reliably supported so that the skin material can be thermally cut.

In addition, the support cylinder 300 interposes an elongated gap maintaining part 330 between the operation rod 310 and the support part 320 . The gap maintaining part 330 may couple the support part 320 and the operation rod 310 to be spaced apart from each other. That is, the spacing maintaining unit 330 may provide a separation distance between the operating rod and the supporting unit so that the heat of the supporting unit 320 is not transmitted to the main body of the supporting cylinder. In addition, the gap maintaining unit 330 may include heat dissipation fins 331 protruding at predetermined intervals on the outer circumferential surface along the longitudinal direction thereof.

In the present invention, the center panel P is charged between the cutting cylinder 200 and the supporting cylinder 300 arranged to face each other as shown in FIG. 5 in order to perforate a part of the skin material. At this time, the coupling hole Pa' of the substrate Pa constituting the center panel is arranged on a coaxial line connecting the cutting portion 220 of the cutting cylinder 200 and the support portion 320 of the support cylinder 300 .

In FIG. 7, the present invention moves the operating rod 310 of the support cylinder 300 upward in synchronization with the downward movement of the operating rod 210 of the cutting cylinder 200 to cover a portion of the skin material covering the coupling hole of the substrate. While thermally pressing from the upper side with the cutting unit 220 and thermally supporting the skin material from below through the support unit 320, it is possible to more effectively cut the skin material along the cutting line inside the coupling hole.

The cutting cylinder 200 is a part of the skin material Pb of the center panel P seated on the jig 120 with the cutting blade 223 through the descending movement of the operation rod 210 (specifically, the coupling hole) It is possible to perforate the skin material to correspond to the bonding hole of the substrate by thermal cutting while pressing the skin material) downward. In this case, the skin material is cut into a shape corresponding to the shape of the coupling hole by the loop-type cutting blade 223a, and the inner periphery of the skin material is cut so that the cut skin material can be easily bent outwardly by the radial cutting blade 223b. It can be cut to be divided into the above tooth shape (Pb'; see Fig. 8).

As described above, the present invention inserts the center panel (P) between the cutting cylinder 200 and the supporting cylinder 300 arranged to face each other, and then the lowering movement of the cutting cylinder 200 and the rising of the supporting cylinder 300 . Through movement, the skin material can be perforated to correspond to the bonding hole of the substrate.

In addition, the present invention cuts the skin material (Pb) to correspond to the coupling hole (Pa'), and then divides one or more teeth (Pb') along the inner periphery of the skin material (Pb) to the substrate (Pa) A configuration for joining (wrapping) along the periphery of the inner circumferential surface of the may also be disposed in an in-line type so that batch processing is possible.

In other words, in the present invention, the upper cylinder 400 and the lower cylinder 500 are spaced apart from each other in the vertical direction based on the work plate 100 by using the perforated center panel P as a means of the jig 120 . ) is charged between (see FIG. 9). Then, according to the present invention, by the downward movement of the upper cylinder 400 and the upward movement of the lower cylinder 500, the tooth shape (Pb') of the skin material is forcibly curved toward the inner peripheral surface of the coupling hole (Pa') of the substrate to be joined. (Adhesive for adhesion may be applied simultaneously in the diagram for overall adhesion of the substrate and the skin material).

To this end, the present invention provides an upper cylinder 400 that is disposed on the work plate 100 and provides up and down reciprocating movement of the convex portion 420 so as to bend the teeth Pb' of the skin material downward, and the upper cylinder 400 and It consists of a lower cylinder 500 that is disposed oppositely under the working plate and presses the teeth of the skin material curved downward through the vertical reciprocating movement of the recess 520 while bending toward the inner circumferential surface of the engaging hole Pa' of the substrate. The upper cylinder 400 may be installed in the fixed frame 110 to be spaced apart from the working plate 100 .

The upper cylinder 400 is provided with an operation rod 410 for reciprocating the convex portion 420 in the vertical direction toward the upper surface of the center panel (P) seated on the work plate as shown in FIG. The distal end of the operation rod 410 arranges a convex portion 420 (凸部) for laying the teeth (Pb') of the skin material (Pb) of the center panel (P) downward.

The convex part 420 is a component that presses downwardly the plurality of teeth Pb' divided along the periphery of the coupling hole Pa' of the substrate Pa through the downward movement of the operation rod, and the shape of the coupling hole of the substrate and the It is formed in a corresponding shape and has a size capable of penetrating the coupling hole Pa'.

In the present invention, the upper cylinder 400 and the lower cylinder 500 which are disposed to be spaced apart from each other in the vertical direction as described above are positioned under the working plate 100 . Preferably, the lower cylinder 500 is arranged coaxially with the upper cylinder 400 .

The lower cylinder 500 includes an operation rod 510 for reciprocating the recess 520 in the vertical direction toward the base surface of the center panel P seated on the jig 120 as shown in FIG. 9 . The distal end of the operation rod 510 has a recess 520 capable of accommodating the convex portion 420 .

The concave portion 520 provides a concave portion 521 capable of accommodating the end of the convex portion 420 in its center, while on the side thereof, the inclined surface 522 of the upper and lower light that is widened downward. to provide The recess 520 guides the plurality of teeth (Pb') bent downward by the pressure of the convex part during the upward movement of the working rod onto the downward inclined surface 522, and continuously the inner peripheral surface of the coupling hole (Pa') of the substrate. It is pressed while being curved in the radial direction toward the Accordingly, the teeth of the skin material can be securely bonded to the inner circumferential surface of the bonding hole of the substrate by the adhesive applied to the inner surface thereof and the pressing force of the recess. As a result, according to the present invention, it is possible to neatly finish the perimeter of the mounting hole of the interior material by perforating the skin material of the interior material and bonding the skin material around the inner circumferential surface of the bonding hole of the substrate.

Preferably, the concave portion 520 may be made of an elastic material such as rubber, silicone, or the like, at the end facing/accommodating the convex portion. This helps to more effectively bring the teeth into contact with the base surface of the substrate by bending the teeth of the skin material placed in contact with the periphery of the end edge of the recess into a shape corresponding to the base surface of the substrate when the recess is mated with the convex part by the upward movement of the recess. In addition, since the concave portion of the elastic material has a high coefficient of friction, it provides an effect of pulling each tooth outward in the process of pressing the teeth of the skin material to the inner circumferential surface of the coupling hole, so that the skin material can be joined flat without crying.

Although the present invention has been described in detail through examples, this is for explaining the present invention in detail, and the thermal cutting device for automotive interior materials according to the present invention is not limited thereto, and within the technical spirit of the present invention, it is common in the art. It will be clear that the transformation or improvement is possible by those who have the knowledge of

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

100 ----- working plate,
200 ----- cutting cylinder,
300 ----- support cylinder,
400 ----- upper cylinder,
500 ----- lower cylinder,
P ----- Center panel.

Claims (5)

delete An apparatus for cutting an automobile interior material laminated with a hard substrate (Pa) having one or more bonding holes (Pa') and a skin material (Pb) bonded to the surface of the substrate,
a work plate 100 having a jig 120 for mounting the vehicle interior material;
a cutting cylinder 200 for providing vertical reciprocating movement of the cutting unit 220 toward the interior of the vehicle; and
It includes; a support part 320 for supporting the skin material;
The skin material is any one of a leather fabric, a fabric fabric, or an artificial leather fabric,
The skin material covering the coupling hole is heat-cut and perforated by the cutting part 220 of the cutting cylinder 200 while being supported by the support part 320 ,
The cutting unit 220 is provided with a cutting blade 223 to form a cutting line on the skin material and cut it,
The cutting blade 223 is,
A loop-type cutting blade 223a formed in a shape corresponding to the shape of the coupling hole Pa' of the substrate Pa, and a plurality of radial cutting blades 223b extending in a radial direction from the loop-type cutting blade. A thermal cutting device for automotive interior materials, characterized in that it comprises a.
3. The method according to claim 2,
The cutting cylinder 200,
an operating rod 210 that reciprocates up and down;
It further includes; a gap maintaining part 230 interposed between the operation rod 210 and the cutting part 220;
The space maintaining unit 230 is a thermal cutting device for automotive interior materials, characterized in that it further comprises a plurality of heat dissipation fins (231) protruding at predetermined intervals on the outer circumferential surface along the longitudinal direction.
3. The method according to claim 2,
The support 320 is,
While supporting one surface of the skin material (Pb) to be cut with the cutting blade 223 upward, heating the skin material (Pb) by heat to help the perforation of the skin material (Pb),
A thermal cutting device for automotive interior materials, characterized in that.
3. The method according to claim 2,
An upper side having a first operation rod 410 and a convex portion 420 disposed at the tip of the first operation rod 410 and providing vertical reciprocating movement of the convex portion 420 toward the vehicle interior material a cylinder 400;
A second actuating rod 510 and a concave portion 520 disposed at the distal end of the second actuating rod 510 are provided, and the upper and lower reciprocating movement of the concave portion 520 toward the vehicle interior is provided, the upper side It further includes; the lower cylinder 500 and the cylinder 400 and the lower cylinder 500 and spaced apart from each other in the vertical direction on the same axis,
The concave portion 520 has a concave portion 521 for accommodating the end of the convex portion, and an inclined surface 522 of the upper and lower beams that become wider toward the bottom. thermal cutting device.

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