KR20230139530A - Automotive Interior Skin Thermocompression Mold Apparatus - Google Patents

Abstract

The present invention allows heat compression to be carried out by pulling the outer edge of the skin temporarily bonded to the interior material, so that the skin can be compressed in a flat, unfolded state without wrinkles, so that the thin skin of high-quality material can be effectively pressed to the interior material without defects. In addition, the seam-like stitch line formed on the skin during the pressing process is pressed separately and the skin is pulled, allowing the upper mold to be lowered to proceed with heat pressing without damaging the stitch line formed on the skin. Provides a skin heat compression mold device for automobile interior materials.

Description

Automotive Interior Skin Thermocompression Mold Apparatus}

The present invention relates to a skin heat compression device for automobile interior materials, and more specifically, to a device that stretches the skin flatly without damaging the stitch line formed on the skin while pulling the outer edge of the skin temporarily bonded to the interior material. It relates to a skin thermo-compression mold device for automobile interior materials that lowers the upper mold in this state to heat-compress the skin to the interior material.

In general, interior materials for automobiles include instrument panels, door trims, pillars, trunk mats, package trims, headliners, etc., and the materials and composition of these interior materials vary depending on the vehicle type.

In addition, some vehicle models use interior materials that are injection molded with only a hard substrate, while some other vehicle models use interior materials that have a soft skin material attached to part or the entire surface of the injection molded hard substrate.

In addition, the materials of the hard substrate that are injection molded include PP, PP felt, PP board (POLY-PROPYLENE BOARD), ABS, WOOD STOCK, and resin felt ( RESIN FELT) is mainly used, and the soft skin material bonded to the surface of the substrate is PE FOAM, PP FOAM, or PE foam on the back of the skin paper made of non-woven fabric, fabric, or PVC. Those with PU FOAM etc. attached are mainly used.

In addition, for injection molding of the automobile interior base material and attachment of the skin material, low-pressure injection molding method and high-pressure injection molding method are mainly used in the related art. In the low-pressure injection molding method, the skin material is formed before injecting the injection liquid of the base material. This is a method in which substrate molding and skin material adhesion are carried out simultaneously by injecting injection liquid at low pressure in a pre-injected state between both molds. Workability and productivity can be said to be good because substrate molding and skin material adhesion are performed simultaneously, but this low pressure Injection equipment is expensive, costing 2 to 3 billion won, so there are many factors that increase the cost, and the damage to the skin material is severe, leading to poor quality.

An example of prior art to solve the above problems is the Republic of Korea Intellectual Property Office Patent Publication No. 10-2004-0061085 (name: Molding method and molding apparatus for interior materials for automobiles).

The prior art molds the substrate by injecting the injection liquid at high pressure into the molding surfaces of the upper and lower molds to which the primary press pressure is applied, followed by cooling and aging, and releasing the primary press pressure. In the process, after the above step of separating the upper and lower molds, a heating device is introduced to heat and melt the surface of the substrate, and a subsidy mold whose bottom part is the same shape as the upper mold molding surface and a skin material are introduced, and then the subsidy mold is placed on the molding surface of the upper mold. 2. A step of setting the sub-type integrally with a second press of the upper mold on which the sub-type is set integrally to adhere the skin material to the surface of the substrate, and cooling the bonded substrate and skin material to maintain the adhesive state. The main point is to include a secondary cooling step and a step of removing the substrate with the skin material attached from the lower mold and the original position of the subsidy mold separated from the upper mold after releasing the secondary press pressure of the upper and lower molds.

However, although the above prior art may be able to automate the process of adhering the skin material to the surface of the substrate, the work does not end with adhering the skin material to the surface of the substrate, but rather wraps the end of the skin material along the outline of the substrate and then , the process of re-adhering the wrapped area must be carried out to manufacture the interior material of the finished product. However, in the prior art, a process of automatically wrapping and adhering the end of the mentioned skin material to the outer edge of the base material and a device for implementing this are provided. The disadvantage is that the interior materials of the finished product cannot be molded.

In particular, adhering the skin material to the surface of the substrate in the same manner as in the prior art involves attaching a skin material with a relatively thick thickness, for example, a cushion layer such as an embossed portion to the skin material, to the substrate. When attaching, a possible method is, for example, the skin material such as artificial leather or natural leather used in the interior material of a luxury vehicle with a thin skin material is thin, so it is not attached while wrapping the outer surface of the substrate, but rather the skin material is attached to the substrate. After temporary adhesion, heat is applied to the skin material to activate the adhesive and the skin material is heat-pressed to the substrate. At this time, during the heat compression process, defects such as partial unevenness of the adhesive area often occur due to the thin thickness of the skin material. Therefore, adhesion of thin skin materials requires skilled workers to manually pull the skin material outward and then bond it. It proceeds in this way. In particular, in the case of skin materials with stitch lines, automation is more difficult, so it has to be done manually, depending on the worker's skill level.

In addition, the adhesive applied to the interior material must be heated to a predetermined temperature to activate the adhesive performance, and the skin pressed to the interior material must also be heated to a predetermined temperature to soften the skin and improve adhesive performance during compression. In the prior art, skin or Since there is no means to preheat the interior material or to apply heat to a predetermined temperature when compressed, the adhesiveness of the skin is reduced and product defects frequently occur.

Document 1: Republic of Korea Intellectual Property Office Registered Patent Publication No. 10-0823652 Document 2: Republic of Korea Intellectual Property Office Registered Patent Publication No. 10-1459846 Document 3: Republic of Korea Intellectual Property Office Registered Patent Publication No. 10-1933915 Document 4: Republic of Korea Intellectual Property Office Registered Patent Publication No. 10-1428275

Therefore, the purpose of the present invention to solve the problems described above is to provide a skin thermal compression mold device for automobile interior materials that can adhere thin skin to interior materials without defects.

Another object of the present invention is to provide a skin thermal compression mold device for automobile interior materials that allows heat compression by lowering the upper mold without damaging the stitch line formed on the skin while pulling the outer edge of the skin temporarily bonded to the interior material. .

In order to achieve the above-described object, the present invention relates to a thermal compression molding device for automotive interior material skins that is formed by thermally compressing a skin temporarily bonded to an interior material, in which a lower die is positioned above the lower die and the upper die is formed by the power of a driving source. , an upper press that moves downward, a lower mold that is fixedly installed on the lower die and on which the interior material to which the skin is temporarily bonded is placed, is fixed to the upper press and is combined with the lower mold by driving the upper press to attach the skin to the interior material. The upper mold for heat compression, at least one skin installed along the front and both sides of the lower mold, and the skin temporarily bonded to the interior material are pressed and fixed with a fixing pin, and the fixing pin is pulled and fixed to the fixing pin. A skin tension clamping means for clamping the skin in a flat unfolded state, which is installed on one rear side of the lower mold and pressurizes the stitch line formed on the outer rear side of the skin temporarily bonded to the interior material with a pressure bar to clamp the skin tension clamping means. A stitch line guide means that prevents the stitch line from being disturbed during the process of pulling the skin by driving, an interior material installed on the rear side of the lower die and placed on the lower mold by entering a heater between the upper and lower molds, and It is characterized by including a heating means for preheating the skin.

The skin tension clamping means includes an up-down cylinder installed on the lower die, an up-down plate that is coupled to the rod of the up-down cylinder and moves up and down, a reciprocating cylinder supported by the up-down plate, and a rod of the reciprocating cylinder, A carriage that reciprocates afterward, a tilting cylinder supported by the carriage, a rotating shaft that rotates with the power of the tilting cylinder, and a tilting arm that is coupled to the rotating shaft and performs a tilting operation by the movement of the rotating shaft while supporting the fixing pin. It is desirable to configure it as:

The stitch line guide means includes a reciprocating cylinder fixed to the lower die, a carriage coupled to the rod of the reciprocating cylinder to reciprocate forward and backward, an up-down cylinder installed on the carriage, and an upper-down cylinder coupled to the rod of the up-down cylinder. , It is preferable to construct an up-down plate that lowers the pressure bar while moving down and supporting the pressure bar to press and fix the stitch line.

The stitch line guide means includes a reciprocating cylinder fixed to the lower die with a bracket, a reciprocating cylinder coupled to a rod of the reciprocating cylinder and reciprocating forward and backward on a rail installed on the lower die by driving the reciprocating cylinder, It consists of an up-down cylinder installed on the carriage, an up-down plate that is coupled to the rod of the up-down cylinder, moves up and down by driving the up-down cylinder, and lowers the press bar to press and fix the stitch line. This is desirable.

The present invention allows heat compression to be carried out by pulling the outer edge of the skin temporarily bonded to the interior material, so that the skin can be compressed in a flat, unfolded state without wrinkles, so that the thin skin of high-quality material can be effectively pressed to the interior material without defects. In addition, the seam-like stitch line formed on the skin during the pressing process is pressed separately and the skin is pulled, allowing the upper mold to be lowered to proceed with heat pressing without damaging the stitch line formed on the skin. It has an effect.

Figure 1 is a front view showing the overall configuration of a skin thermal compression mold device for automobile interior materials according to the present invention.
Figure 2 is a side view of Figure 1.
Figure 3 is a diagram showing an excerpt of the main configuration of Figure 2.
Figure 4 is a plan view showing the lower mold, interior material, skin tension clamping means, and stitch line guide means in Figure 3.
Figure 5 is a view showing an excerpt of the skin tension clamping means of Figure 4.
Figure 6 is a plan view of Figure 6.
FIG. 7 is a view illustrating a state in which the skin is spread flat while the fixing pin in FIG. 5 fixes the skin.
Figure 8 is a view showing an excerpt of the stitch line guide means in Figure 4.
Figure 9 is a plan view of Figure 8.
Figure 10 is a front view showing an excerpt of the heating means in Figure 3.
Figure 11 is a side view of Figure 10.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. In the detailed description to be described later, representative embodiments of the present invention will be presented to achieve the above-described technical problem. And other embodiments that can be presented with the present invention are replaced with descriptions in the configuration of the present invention.

The present inventor's skin thermo-compression mold device for automobile interior materials has a relatively thin form and has a stitch line formed on one surface to automatically bond the skin to the interior material by temporarily bonding the skin to the interior material with an adhesive, and then attaching the skin to the interior material. The outer surface of the skin is stretched with a clamp to prevent the adhesive surface from becoming uneven, then heated with a heater to activate the adhesive, and then heat-pressed with the upper and lower molds to adhere the skin to the interior material. We would like to provide a compression mold device.

The attached Figure 1 is a front view showing the overall configuration of the skin thermal compression mold device for automobile interior materials according to the present invention, Figure 2 is a side view of Figure 1, and Figure 3 is a drawing showing an excerpt of the main structure of Figure 2. , FIG. 4 is a plan view showing the lower mold, interior material, skin tension clamping means, and stitch line guide means in FIG. 3, FIG. 5 is a view showing an excerpt of the skin tension clamping means of FIG. 4, and FIG. It is a plan view, and Figure 7 is a diagram showing a state in which the skin is spread flat while the skin is fixed by the fixing pin in Figure 5, and Figure 8 is a diagram showing an excerpt of the stitch line guide means in Figure 4, Figure 9 is a plan view of Figure 8, Figure 10 is a front view showing the heating means extracted from Figure 3, and Figure 11 is a side view of Figure 10.

As shown in Figures 1 to 11, the skin thermal compression mold device for automobile interior materials includes a lower die 20, a guide post 14 standing vertically along the outer edge of the lower die 20, and the guide post ( It has an LM guide rail (16) installed on the LM guide rail (14), an LM block (18) that moves on the LM guide rail (16), and an upper press (10) that moves up and down with the power of the driving unit (12). constitutes. The driving unit 12 includes a motor 210, a pinion 212 coupled to the shaft of the motor 210, and a rack 214 engaged with the pinion 212 and connected to the upper press 10 in a vertically standing state. ) to move the upper press 10 up and down.

On the other hand, the upper press 10 and the lower die 20 are provided with a mold that presses and heat-compresses the skin 1 to the interior material 2 through the pressing operation of the upper press 10, and the end of the skin 1 is molded into the interior material ( 2), a side banding pressing means 60 for adhering to the outer surface of the interior material, an undercut pressing means for the interior material, and a heating means 100 for preheating the adhesive of the skin 1 and the interior material 2 are further included and installed.

The mold largely consists of upper and lower molds 30 and 40.

The lower mold 40 is a mold fixed to the upper surface of the lower die 20, and the interior material 2 to which the skin 1 is temporarily bonded is fixed to the upper surface. At this time, the upper surface of the lower mold 40 is curved to correspond to the surface shape of the interior material 2 so that the interior material 2 is tightly adhered to the entire surface of the lower mold 40. A fixing pin is installed in the lower mold, and the fixing pin is inserted into a fixing hole formed along the outer edge of the interior material and fixes the interior material in a fixed position in the lower mold.

A hot water circulation passage 42 is formed inside the lower mold 40. The hot water circulation passage 42 circulates hot water having a predetermined temperature. At this time, the interior material 2 placed on the lower mold 40 is warmed by the heat source of the hot water circulating in the hot water circulation passage 42. Through this, the interior material 2 and the skin 1 are heat-compressed during the joining process of the upper and lower molds 30 and 40, thereby realizing a strong adhesive effect.

The upper mold 30 is fixed to the lower surface of the upper press 10 and performs a lowering operation according to the pressing operation of the upper press 10. That is, the interior material 2 placed on the lower mold is pressed and bonded to the skin 1 by combining the upper and lower molds according to the lowering motion of the upper mold 30.

A hot water circulation passage 32 is formed inside the upper mold 30. The hot water circulation passage 32 circulates hot water having a predetermined temperature. At this time, the upper mold 30 is heated with the heat source of the hot water circulating in the hot water circulation passage 32 to form the skin 1 of the interior material 2. ) can be heat-compressed in the process of pressurizing to achieve a strong adhesive effect.

Meanwhile, on the front and both sides of the lower die 40, the outer surface of the skin 1 temporarily bonded to the interior material is pulled in a clamped state, and the skin 1 is spread out flat without wrinkles while heat compression is in progress. A skin tension clamping means 50 is installed to maintain the skin tension.

The skin tension clamping means 50 presses the outer surface of the skin 1 with a fixing pin 72 fixed to the tilting arm 70, and then pulls the fixing pin 72 to secure the skin 1. ) will be unfolded.

The skin tension clamping means 50 has the same structure and is installed on the front and both sides of the lower die 20. In the following, the structure of one skin tension clamping means 50 is representatively described.

Referring to Figures 5 to 7, the skin tension clamping means 50 is coupled to an up-down cylinder 52 installed on the lower die 20 and a rod 53 of the up-down cylinder 52 to move up and down. An up-down plate 54, a reciprocating cylinder 56 supported on the up-down plate 54, a carriage 60 coupled to the rod 58 of the reciprocating cylinder 56 and reciprocating forward and backward, the carriage A tilting cylinder (62) supported on (60), a rack gear (64) coupled to the rod of the tilting cylinder (62), and a rotation shaft (68) coupled with a pinion (66) engaged with the rack gear (64). , a tilting arm 70 coupled to the rotation shaft 68 and performing a tilting operation by the rotation of the rotation shaft 68, and a fixing pin 72 coupled to the tip of the tilting arm 70.

The skin tension clamping means 50 fixes the interior material 2 to which the skin 1 is temporarily attached to the lower mold 40, and then spreads the skin 1 flat without wrinkles before heat compression is performed. It operates to raise and lower the up-down plate (54) by the operation of the up-down cylinder (52) to raise and lower the fixing pin (72), and then the reciprocating cylinder (56) drives and moves the fixing pin (72) forward to lift the skin. It is located on the upper part of the outer surface of the skin (1), and then the tilting cylinder (62) is driven to tilt the tilting arm (70) coupled to the rotation axis (68), thereby tilting the fixing pin located on the upper part of the outer surface of the skin (1). Clamp (72) in contact with the outer surface of the skin (1). In this state, when the fixing pin 72 is moved backward by the operation of the reciprocating cylinder 56, the skin 1 clamped to the fixing pin 72 is pulled in the backward movement direction of the fixing pin 72, thereby causing the skin ( 1) can be clamped with it spread out flat.

A stopper 74 is further installed on the up-down plate 54. The stopper 74 limits the rearward moving distance of the carriage 60 and adjusts the tension force according to the pulling of the skin 1.

A stitch line guide means 80 is further installed on one rear side of the lower die 20 to pressurize and fix the stitch line 4 formed on the outer rear surface of the skin 1 to prevent the shape of the stitch line 4 from being distorted. do.

The stitch line guide means 80 does not pull the skin 1 in a clamped state like the skin tension clamping means 50 described above, but moves along the outside of the skin 1 where the stitch line 4 is formed. This means is provided for the purpose of fixing the stitch line 4 so that it does not become disturbed when the skin 1 is pulled by the operation of the skin tension clamping means 50 by performing only the operation of pressing the back side.

Referring to Figures 8 and 9, the stitch line guide means 80 is coupled to a reciprocating cylinder 84 fixed to the lower die 20 with a bracket 82 and a rod 86 of the reciprocating cylinder 84. A carriage (88) that reciprocates back and forth on a rail installed on the lower die (20) by driving the reciprocating cylinder (84), an up-down cylinder (90) installed on the carriage (88), An up-down plate (92) that is coupled to the rod of the up-down cylinder (90) and moves up and down by driving the up-down cylinder (90), a guide post that guides the up-down movement of the up-down plate (92), and the up-down plate. It is installed in front of (92) and located above the outer rear of the skin (1) where the stitch line (4) is formed by driving the reciprocating cylinder (84), and then descends by driving the up-down cylinder (90). It is composed of a pressure bar 94 that pressurizes the outer rear surface of the skin 1 to prevent the stitch line 4 from being disturbed.

The stitch line guide means 80 operates the reciprocating cylinder 84 after the interior material 2 to which the skin 1 is temporarily attached is fixed to the lower mold 40, so that the press bar 94 moves the stitch line 4. ) moves upward to the outer rear of the skin (1), and then, by driving the up-down cylinder (90), the pressure bar (94) presses the outer rear of the skin (1) and uses the skin tension clamping means ( 50) prevents the stitch line 4 formed on the outer rear side of the skin 1 from being disturbed during the process of pulling the skin 1.

A heating means 100 is installed between the upper and lower molds 30 and 40. The heating means 100 enters a heater between the upper and lower molds 30 and 40 to preheat the interior material 2 and the skin 1 assembled in the upper and lower molds 30 and 40, thereby forming the interior material 2. ), and also makes the skin (1) soft and flexible so that the skin (1) can be tightly pressed to the interior material (2).

The heating means 100 is disposed at the rear of the upper and lower molds 30 and 40, and when operated, moves forward and enters the space between the upper and lower molds 30 and 40.

Referring to Figures 10 and 11, the heating means 100 includes a support frame 110, a support rail 112 mounted on the upper surface of the support frame 110 and fixed to the support frame 110, and the support. The LM guide rail 114 installed on the rail 112 is connected to the LM guide 116 that moves on the LM guide rail 114 and the connection frame 118, and is connected to the LM guide rail by the power of the driving unit 130. A carriage 120 that moves back and forth on (114) is supported at a certain distance from the lower surface of the carriage 120 and moves forward and backward by the movement of the carriage 120, and the upper and lower surfaces of the carriage 120 move back and forth. , and a heater 122 that enters between the lower molds 30 and 40 to heat the interior material 2 and the skin 1.

The driving unit 130 is a means for reciprocating the carriage 120 in the forward and backward directions. The driving unit 130 includes a motor 132 supported on the carriage 120, a pinion 138 connected to the motor 132 and a power transmission means, and is engaged with the pinion 138 and the support rail ( It consists of a rack gear 140 fixed to 112). The power transmission means includes a driving pulley 133 coupled to the shaft of the motor 132, a driven pulley 134 connected to the driving pulley 133 and a belt 135, and a shaft coupled to the driven pulley 134. It is composed of a shaft 136 that supports the pinion 138, so that the power of the motor 132 is transmitted to the pinion 138.

When the drive unit 130 rotates the pinion 138 by driving the motor 132, the pinion 138 rotates on the rack gear 140. At this time, the motor 132 is supported. The carriage 120 moves forward and backward through the LM guide rail 114 and LM guide 116.

The above-mentioned heating means 100 enters the heater 122 above the lower mold 40 before the upper and lower molds 30 and 40 are combined to heat-compress the interior material 2 and the skin 1. The adhesive that temporarily bonds the interior material and skin is preheated to a certain temperature to activate the adhesive.

Hereinafter, the operation of the skin thermal compression mold device for automobile interior materials according to the present invention will be described with reference to FIGS. 1 to 11.

The process of bonding and molding the skin 10 of an automobile interior material consists of a skin and interior material fixing step, a stitch line pressurizing step, a skin tension clamping step, a preheating step, and a heat pressing step.

In the skin and interior material fixing step (S1), the skin is temporarily bonded to the surface of the automobile interior material, and then the interior material to which the skin is temporarily bonded with an adhesive is placed on the lower mold and fixed. At this time, the interior material placed on the lower mold 40 is fixed in place without shaking by the fixing pin installed on the lower mold 40.

The stitch line pressing step is a step of pressing the stitch line (4) after the skin (1) and interior material (2) are fixed in the lower mold (40), and the pressing table is pressed by driving the reciprocating cylinder (84). (94) moves upward to the outer rear of the skin (1) where the stitch line (4) is formed, and then the pressure bar (94) presses the stitch line (4) by driving the up-down cylinder (90). .

The skin tension clamping step is a step in which the skin 1 placed on the lower mold 40 is pulled and straightened to prevent wrinkles after the stitch line 4 is pressed in the previous stitch line pressing step. That is, the up-down plate 54 is raised and lowered by the operation of the up-down cylinder 90 to raise and lower the fixing pin 72, and then the reciprocating cylinder 56 is driven to move the fixing pin 72 forward to lift the skin 1. It is located on the upper part of the outer surface, and then the tilting cylinder (62) is driven to tilt the tilting arm (70) coupled to the rotation axis (68), thereby fixing the fixing pin (72) located on the upper part of the outer surface of the skin (1). The skin (1) is clamped in a state of contact with the outer surface, and then the fixing pin (72) is moved backward by the operation of the reciprocating cylinder (56), so that the skin (1) clamped to the fixing pin (72) is fixed. By pulling the pin 72 in the direction of backward movement, the skin 1 is maintained in a flat, wrinkle-free state.

The preheating step is a step of preheating the adhesive temporarily bonding the interior material 2 and the skin 1 by entering the heating means 100 between the upper and lower molds 30 and 40.

That is, when power is applied to the motor 132, which is the driving unit 130, the pinion 138 rotates and rotates on the rack gear 140, and the carriage 120 on which the motor 132 is supported accordingly ) moves forward on the support rail 112 through the LM guide rail 114 and LM guide 116, and uses the heater 122 mounted on the lower surface of the carriage 120 to operate the upper and lower molds 30, 40), then power is applied to generate heat in the heater 122 to preheat the adhesive temporarily bonding the interior material 2 and the skin 1.

In the heat compression step, after the adhesive temporarily bonding the interior material 2 and the skin 1 through the preheating step is warmed to a certain temperature, the upper and lower molds 30 and 40 are joined by driving the upper press 10. The skin (1) is heat-compressed to the interior material (2).

At this time, while the upper and lower molds (30, 40) are combined, hot water is circulated through the warm circulation passages (32, 42) formed inside the upper and lower molds (30, 40) to form the skin (1) and Compression is performed while the interior material 2 is heated to a certain temperature, and through this heat compression process, the skin 1 can be tightly pressed to the interior material 2.

10: upper press 20: lower die
30: upper mold 40: lower mold
50: skin tension clamping means 52: up-down cylinder
54: up-down plate 56: reciprocating cylinder
60: carriage 62: tilting cylinder
66: rack gear 68: pinion
70: Tilting arm 72: Fixing pin
80: Stitch line guide means 84: Reciprocating cylinder
88: carriage 90: up-down cylinder
94: Pressure bar 100: Heater means
112: support rail 120: shuttle
122: heater 130: driving unit

Claims (3)

In the automobile interior material skin thermo-compression molding device for molding the skin (1) temporarily bonded to the interior material (2) by thermo-compression,
lower die (20);
An upper press (10) that moves up and down with the power of a driving source while located above the lower die (20);
a lower mold (40) fixed to the lower die (20) and on which the interior material (2) to which the skin (1) is temporarily bonded is placed;
An upper mold (30) fixed to the upper press (10) and combined with the lower mold (40) by driving the upper press (10) to heat-press the skin (1) to the interior material;
At least one skin 1 installed along the front and both sides of the lower mold 40 and temporarily bonded to the interior material 2 is pressed and fixed with a fixing pin 72, and the fixing pin 72 is held. Skin tension clamping means (50) for pulling and clamping the skin (1) fixed to the fixing pin (72) in a flat, unfolded state;
The stitch line 4 formed on the outer rear side of the skin 1, which is installed on one rear side of the lower mold 40 and temporarily bonded to the interior material 2, is pressed with a pressure bar 94 to press the skin. Stitch line guide means 80 for preventing the stitch line 4 from being disturbed during the process of pulling the skin 1 by driving the tension clamping means 50;
Heating means 100 is installed on the rear side of the lower die 20 and preheats the interior material and skin placed on the lower mold 40 by entering a heater 122 between the upper and lower molds 30 and 40. ), an automotive interior material skin thermo-compression mold device comprising:
According to clause 1,
The skin tension clamping means 50 is;
An up-down cylinder 52 installed on the lower die 20;
An up-down plate (54) coupled to the rod of the up-down cylinder (52) and moving up and down;
A reciprocating cylinder (56) supported on the up-down plate (54);
A reciprocating carriage (60) coupled to the rod of the reciprocating cylinder (56) and moving back and forth reciprocally;
A tilting cylinder (62) supported on the carriage (60);
A rotating shaft 68 that rotates with the power of the tilting cylinder 62;
A thermal compression mold device for automotive interior material skin, characterized in that it is coupled to the rotating shaft (68) and consists of a tilting arm (70) that performs a tilting operation by the motion of the rotating shaft (68) while supporting the fixing pin (72).
According to clause 1,
The stitch line guide means 80 is;
A reciprocating cylinder (84) fixed to the lower die (20);
A reciprocating carriage (88) coupled to the rod of the reciprocating cylinder (84) and moving back and forth reciprocally;
An up-down cylinder (90) installed on the carriage (88);
It is coupled to the rod of the up-down cylinder 90 and moves up and down, and while supporting the press bar 94, the press bar 94 is lowered so that the stitch line 4 is moved by the press bar 94. A skin thermal compression mold device for automobile interior materials, characterized by consisting of an up-down plate (92) for pressing and fixing.