KR102497321B1 - Method for manufacturing a resin molding including a skin material - Google Patents

Abstract

The present invention relates to a method for preparing a resin-molded article including a surface skin material, in which a roll-shaped material having a base material and a surface skin material bonded to one surface of the base material is used to eliminate a conventional process of injecting a base material into a surface skin material so that a time required for the entire work process can be reduced. In a step of preparing and introducing a material, a material, to which a surface skin material and a base material are integrally bonded, is prepared so that the surface skin material and the base material can be formed simultaneously in a vacuum forming step, and the surface skin material is integrally bonded to the internal side of the base material. Accordingly, continuous introduction is possible by using the material wound in a roll shape, and thus, mass production can be achieved.

Description

Method for manufacturing a resin molding including a skin material}

The present invention relates to a method for manufacturing a resin molding including a skin material, and more particularly, by using a roll-shaped material in which the skin material is adhered to one surface of a substrate, the overall operation by omitting the process of injecting a substrate into a conventional skin material It relates to a method for manufacturing a resin molding including a skin material that can shorten the time required for the process.

Resin moldings used as automotive interior materials such as door trims, fillers, trunk mats, package trims, headliners, and vehicle storage boxes are produced by attaching soft skin materials to hard substrates for aesthetics and texture of interior materials depending on the vehicle type. do.

Plastics such as PP (POLYPROPYLENE) are mainly used as the hard substrate material, and fabrics such as non-woven fabrics are mainly used as the soft skin material adhered to the surface of the substrate.

[0003] Conventional general methods of molding vehicle interior materials include injection molding of a substrate of vehicle interior materials and attaching a skin material thereto, such as a low-pressure injection method and a vacuum forming method.

In the low-pressure injection method described above, a skin material is placed on the molding surface of a lower mold, and after injecting a base material injection liquid at a low pressure, the upper mold to which a high pressure press pressure acts is pressed, so that the base material injection liquid injected at a low pressure is injected at a predetermined level. It is a method of producing an interior material by a process in which it is molded into a substrate of the shape and at the same time the skin material is adhered to the surface of the substrate.

This low-pressure injection method has a problem in that the texture of the skin material is deteriorated as the foam layer of the skin material is severely pressed and thinned when the skin material is bonded while pressing the base material injection liquid into the upper mold.

In addition, in the vacuum forming method, in a state where the upper and lower molds are interlocked, the base material injection liquid is injected at high pressure into the molding surface between them to mold and cool the base material first, and then the skin material is placed on the cooled base material and the upper and lower molds are combined to vacuum suction. As a method of bonding the substrate and the skin material, it is a method of producing the interior material by first injection molding the substrate and then attaching the skin material to the surface of the substrate as a post-process.

First, looking at the prior art,

Registration No. 10-1666510 (Special) Pre-heating step of pre-heating the skin material; A pre-forming step of molding the preheated skin material into the shape of a product to be molded, and pre-forming by shaping embossing and groove lines; A seating step of seating the preformed skin material on the upper mold of the base product injection mold; A vacuum adsorption step of adsorbing the skin material seated on the upper mold with vacuum pressure to adhere to the upper mold; and integrally injection-molding the base product to the skin material by injecting injection resin, and the seating step is a pressing step for pressurizing the groove line of the skin material to seal the molding space between the upper mold and the lower mold. It relates to a method for molding a vehicle interior material comprising a.

Looking at the above conventional technology, a skin material is preformed into the shape of a product by vacuum molding, and after vacuum adsorption of the preformed skin material to an upper mold of an injection mold, injection resin is injected to form a base product into the skin material. It is mainly described that it can be molded integrally.

However, the skin material is firstly vacuum-formed, the firstly molded skin material is placed in an injection mold, and after the second vacuum adsorption, the injection resin is injected to integrally mold the base material to the skin material, so the work process is complicated. There is a problem, and there was a problem that the overall work efficiency is inevitably reduced, such as taking extra time in the injection molding step.

The present invention has been made to solve the problems of the prior art, and provides a material in which the skin material and the substrate are integrally bonded in the material preparation and input step so that the skin material and the substrate can be molded at the same time in the vacuum forming step, Completed as a technical task with an emphasis on providing a method for manufacturing a resin molding including a skin material that enables mass production by enabling continuous input using a material in which the skin material is integrally adhered to the inside of the substrate and wound in a roll shape It's done.

Accordingly, the present invention includes a material preparation and input step of providing a material in which the skin material and the substrate are integrally bonded and inputting the material to the heating device; A heating and softening step of softening the input material by heating it with a heating device; A vacuum forming step of pressurizing the softened material transported from the heating device into a mold and adsorbing the material to the mold with vacuum pressure to form the mold; A product take-out step of cooling the vacuum-formed product and releasing it from the mold to take it out, but in the material provision and input step, when the material is introduced into the heating device, the skin material is located at the bottom, and the base material is The heating device is composed of a first heating unit for heating the upper part of the material injected into the heating unit and a second heating unit for heating the lower part, and in the heating and softening step The first heating unit heats the upper part of the material at 330 ° C for 55 to 105 seconds, and the second heating unit heats the lower part of the material at 370 ° C for 55 to 105 seconds. is cooled at 10° C. for 55 seconds using a cooling unit, and in the step of preparing and introducing the material, the skin material is integrally adhered to the inside of the substrate and wound in a roll shape, and the wound material is unwound and heated by a heating device. a cutting step in which the product can be put in, and in the product take-out step, the product taken out is transferred to the cutting unit, and after the product take-out step, the product to be transferred is cut and obtained using the cutting unit; and a trimming processing step of trimming and processing the product obtained through the cutting step, wherein the trimming processing step trims the product obtained through the cutting step and transfers the product to the cleaning unit. After the trimming processing step, trimming is performed using a cleaning unit composed of a first cleaning unit and a second cleaning unit configured to be spaced apart from each other on the upper and lower portions of the trimmed and transported product. ) It includes a washing step of washing the product being processed and transported, and the first washing part, the body part, and the first air injection nozzle configured vertically in the lower part of the body part, one of the first air injection nozzles An air injection unit composed of a second air injection nozzle formed on one side and inclined downward to one side and a third air injection nozzle formed on the other side of the first air injection nozzle and inclined downward toward the other side; Consisting of a suction part configured at both ends and sucking foreign substances scattered by the air injected from the air blowing part, and the second cleaning part, the body part, and the first air vertically constituted on the upper part of the body part A spray nozzle, a second air spray nozzle configured on one side of the first air spray nozzle and inclined upward to one side, and a third air spray nozzle configured on the other side of the first air spray nozzle and configured to be inclined upward to the other side It is characterized in that it consists of an air injection unit composed of, and a suction unit configured at both ends of the body portion to suck foreign substances scattered by the air injected from the air injection unit.

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In addition, in the vacuum forming step, the mold is located on the lower part of the softened material transferred from the heating device and moves upward to press the lower part of the softened material, and the auxiliary pressing part located on the upper part of the mold is moved to the lower side. After moving to pressurize the upper part of the softened material, it is characterized in that it is molded by adsorbing it to the mold by vacuum pressure.

In addition, an assembling step of assembling and combining at least two or more products manufactured through the material preparation and input step, heating and softening step, vacuum forming step, product take-out step, cutting step and trimming step is included as a technical feature.

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According to the method for manufacturing a resin molding including a skin material according to the present invention, the original purpose of being able to vacuum mold into a product shape by adsorbing a softened material to a mold with vacuum pressure is maintained, and at the same time, the skin material is described. By using the material integrally adhered to the inside and wound in a roll shape, the material can be continuously input to enable mass production, and the time required for the work process is omitted by omitting the process of injecting the substrate into the conventional skin material. and cost reduction, and according to the shape of various vehicle interior materials, the conventional vehicle interior materials need to modify the process of forming the skin material and the base material, respectively, whereas the present invention is relatively easily manufactured by modifying only the vacuum forming process. It is a useful invention that can improve the economic efficiency through work efficiency and cost reduction.

1 is a flow chart showing a preferred embodiment of the present invention
Figure 2 is a view showing the step of preparing and inputting materials among the configuration of the method for manufacturing a resin molding including a skin material according to the present invention
Figure 3 is a view showing the heating and softening steps of the configuration of the method of manufacturing a resin molded article including the skin material of the present invention
Figure 4 is a view showing the vacuum forming step of the configuration of the resin molded product manufacturing method comprising the skin material of the present invention
Figure 5 is a view showing the product take-out step of the configuration of the resin molded product manufacturing method including the skin material of the present invention
Figure 6 is a view showing the cutting step of the configuration of the manufacturing method of the resin molding including the skin material of the present invention
7 is a view showing the trimming processing step of the configuration of the method for manufacturing a resin molded product including a skin material according to the present invention
Figure 8 is a perspective view showing a product manufactured through a preferred embodiment of the present invention
9 is a view showing an assembling step of the configuration of the method for manufacturing a resin molding including a skin material according to the present invention
10 is a flow chart showing another embodiment of the present invention
11 is a view showing the washing step of the configuration of the method for manufacturing a resin molded product including a skin material according to the present invention

The present invention uses a roll-shaped material in which the skin material is adhered to one side of the substrate, thereby omitting the process of injecting the substrate into the conventional skin material, thereby reducing the time required for the overall work process. A method for manufacturing a molding is provided.

Hereinafter, a preferred configuration and operation of the present invention for achieving the above object will be described with reference to FIGS. 1 to 11 with reference to the accompanying drawings.

First, prior to explaining the present invention, referring to FIGS. 1 to 5 for its configuration, a material 10 in which a skin material 11 and a base material 13 are integrally bonded is provided and put into the heating device 100. Preparing and inputting materials to do (S100); A heating and softening step (S200) of heating and softening the input material 10 with a heating device 100; A vacuum forming step (S300) of pressing the softened material 10 transferred from the heating device 100 into a mold 200 and adsorbing the material 10 to the mold 200 with vacuum pressure to form the mold; A product take-out step (S400) of cooling the vacuum-formed product and releasing it from the mold 200 to take it out.

Hereinafter, a step-by-step description of the method for manufacturing a resin molding including the skin material of the present invention is as follows.

If the present invention configured as described above is described in more detail,

① Material preparation and input step (S100)

In the material preparation and inputting step (S100), the material 10 to which the skin material 11 and the base material 13 are integrally bonded is provided and inputted into the heating device 100.

First, the substrate 13 is a plastic material such as PP (POLYPROPYLENE), PE (POLYETHYLENE), PC (POLYCARBONATE), PS (POLYSTYRENE), PET (POLYETHYLENE TEREPHTHALATE), PES (POLYESTER), PVC (POLYVINYL CHLORIDE) It can be used, and the skin material 11 can be used by applying various fabric materials such as non-woven fabric, felt and knitted fabric.

In addition, when the material 10 is introduced into the heating device 100, it is preferable that the skin material 11 is located at the bottom and the substrate 13 is located at the top so that it can be introduced, which will be described below. In the heating and softening step (S200), the substrate 13 is positioned under the first heating unit 110, and the skin material 11 is positioned on the upper side of the second heating unit 130, This is to allow the skin material 11 to come into contact with the inside of the mold 200 and be compressed in the vacuum forming step (S300) to be described below.

In addition, in the material preparation and inputting step (S100), the skin material 11 is integrally adhered to the inside of the substrate 13 to provide a material 10 wound in a roll shape, and the wound material 10 is It is preferable to be released so that it can be continuously introduced into the heating device 100.

② Heating and softening step (S200)

The heating and softening step (S200) is a step of softening the input material 10 by heating it with a heating device 100.

That is, as the base material 13 of the material 10 is made of a hard material, the heating device 100 is used to soften the base material 13 and the skin material 11 through heating, followed by a vacuum forming step to be described below. In (S300), it is to be smoothly adsorbed to the inside of the mold 200.

Here, as shown in FIG. 3, the heating device 100 is configured to heat the upper and lower portions of the material 10, and the heating device 100 is placed on top of the material 10 introduced into the heating device 100. It consists of a first heating unit 110 and a second heating unit 130 located at the bottom.

That is, the first heating unit 110 is configured to heat the base material 13 located at the bottom, and the second heating unit 130 heats and softens the skin material 11 located at the top. It will be.

In addition, the first heating unit 110 heats the upper part of the material 10 at 330 ° C for 55 to 105 seconds, and the second heating unit 130 heats the material at 370 ° C for 55 to 105 seconds ( 10) to heat the lower part.

Hereinafter, the moldability and surface state of the material 10 according to the temperatures of the first heating unit 110 and the second heating unit 130 were visually checked, and the results are shown in Table 1.

Upper moldability and surface state of the heated material 10 according to the temperature of the first heating unit 110 Example according to the temperature of the first heating unit temperature 320℃ 330℃ 340℃ 350℃ 360℃ 370℃ 380℃ formability X O O O O O O surface state O O X X X X X

Bottom formability and surface state of the heated material 10 according to the temperature of the second heating unit 130 Example according to the temperature of the second heating unit temperature 340℃ 350℃ 360℃ 370℃ 380℃ 390℃ 400℃ formability X X X O O O O surface state O O O O X X X

Formability [O: good, X: poor (not softened)]

Surface condition [O: good, X: bad (bubbles)

As shown in Table 1, the moldability and surface state of the heated material 10 according to the temperature of the first heating unit 110 were confirmed. Table 1 shows that a plurality of materials 10 are checked several times for each temperature of the first heating unit 110. As a result, the temperature of the first heating unit 110 is set to 330 ° C. or higher, and the material 10 When heating, it was confirmed that the moldability of the upper part of the material 10 was good, and when the temperature of the first heating unit 110 was less than 330 ° C., when the material 10 was heated, the upper part of the material 10 It was confirmed that the softening state was insufficient, resulting in moldability defects.

In addition, when the material 10 is heated with the temperature of the first heating unit 110 at 320 ° C to 330 ° C, it can be confirmed that the upper surface of the material 10 is good, and the first heating unit 110 When the material 10 was heated to a temperature of 340 ° C. or higher, bubbles were generated on the upper surface of the material 10, and it was confirmed that the surface condition was poor.

As indicated in Table 2, the formability and surface state of the heated material 10 according to the temperature of the second heating unit 130 were confirmed. Table 2 shows that a plurality of materials 10 are checked several times for each temperature of the second heating unit 130. As a result, the temperature of the second heating unit 130 is set to 370 ° C. or higher, and the material 10 When heating, it was confirmed that the moldability of the lower part of the material 10 was good, and when the material 10 was heated with the temperature of the second heating unit 130 set to less than 370 ° C, the lower part of the material 10 It was confirmed that the softening state was insufficient, resulting in moldability defects.

In addition, when the material 10 is heated by setting the temperature of the second heating unit 130 to 340 ° C and 370 ° C, it can be confirmed that the lower surface of the material 10 is good, and the second heating unit 130 When the material 10 was heated to a temperature of 380 ° C or higher, bubbles were generated on the surface of the lower part of the material 10, and it was confirmed that the surface condition was poor.

As described above, when the temperature of the first heating unit 110 is 330 ° C and the temperature of the second heating unit 130 is 370 ° C, it can be seen that the formability and surface condition of the upper and lower parts of the material 10 are good. could

③ Vacuum forming step (S300)

The vacuum forming step (S300) is a step of pressing the softened material 10 transferred from the heating device 100 to the mold 200, adsorbing it to the mold 200 with vacuum pressure, and molding it.

That is, by adsorbing the softened material 10 to the inside of the mold 200 formed in the shape of the product, the softened material 10 can be molded into the shape of the product.

In addition, in the vacuum forming step (S300), the mold 200 is located under the softened material 10 transferred from the heating device 100 and moves upward, and the lower part of the softened material 10 After pressing the softened material 10 on the upper side by moving the auxiliary pressing part s located on the top of the mold 200 downward, the softened material 10 is placed on the mold 200. ) is completely adsorbed by vacuum pressure and molded.

④ Product extraction step (S400)

The product taking out step (S400) is a step of cooling the vacuum-formed product and releasing it from the mold 200 to take it out.

That is, the vacuum-formed product adsorbed to the mold 200 is cooled using the cooling unit 400, and the product solidified through cooling is released from the mold 200 and taken out.

Here, it is preferable to cool the vacuum-formed product at 10° C. for 55 seconds using the cooling unit 400 .

Solidification state of the cooled material 10 according to the cooling time of the cooling unit Cooling part 10℃ time(s) 52s 53s 54s 55s 56s 57s 58s solid state X X X O O O O

Solidification status [O: good, X: bad (not solidified)]

As shown in Table 3, the solidification state of the cooled material 10 was confirmed according to the cooling time of the cooling unit. Table 3 is confirmed by cooling a plurality of vacuum-formed materials 10 several times for each time by setting the cooling unit 400 to 10 ° C. As a result, the temperature of the cooling unit 400 is set to 10 ° C. It was confirmed that the solidification state of the vacuum-formed material 10 was good when cooled for more than 10 seconds, and when the temperature of the cooling unit 400 was set to 10 ° C. and cooled for less than 55 seconds, the vacuum-formed material 10 It was confirmed that the solidification state was poor.

In the present invention, by cooling the vacuum-formed material 10 to 10 ° C. for 55 seconds using the cooling unit 400, the vacuum-formed material 10 can be solidified so that it can be smoothly released from the mold 200. This is to prevent unnecessary time and energy from being wasted.

In addition, in the product taking out step (S400), it is preferable to transfer the taken out product to the cutting unit 300.

⑤ Cutting step (S500)

The cutting step (S500) is a step of obtaining by cutting the conveyed product using the cutting unit 300.

That is, a product that has been molded and extracted from the material 10 that is continuously input into the heating device 100 and the mold 200 is obtained by cutting.

⑥ Trimming processing step (S600)

The trimming processing step (S600) is a step of trimming the product obtained through the cutting step (S500).

That is, the edges and holes (h) of the product obtained through the cutting step (S500) are processed and finished.

⑦ Assembly step (S700)

The assembling step (S700) includes the material preparation and inputting step (S100), heating and softening step (S200), vacuum forming step (S300), product taking out step (S400), cutting step (S500) and trimming processing step (S600). ) is a step of assembling and combining at least two or more products manufactured through mutual assembly.

Meanwhile, in another embodiment of the present invention, after the trimming processing step (S600), a washing step (S800) may be included.

First, in the trimming processing step (S600), the product obtained through the cutting step (S500) is trimmed and transferred to the cleaning unit 500.

In the washing step (S800), after the trimming processing step (S600), the first cleaning unit 510 and the second cleaning unit 510 are configured to be spaced apart from each other on the upper and lower parts of the product to be transported after being trimmed. Using the cleaning unit 500 composed of the unit 530, products that are being trimmed and transported are cleaned.

That is, foreign substances attached to the product transported through the trimming processing step (S600) can be washed using the cleaning unit 500, and the cleaning unit 500 is a conventional device equipped with a general cleaning function. It is preferable to apply and use.

In the following, the cleaning unit 500 composed of the first cleaning unit 510 and the second cleaning unit 530 will be described in more detail.

The first cleaning part 510 is composed of a body part 511, an air blowing part 513 and a suction part 515.

The body part 511 is configured to be spaced apart from the upper part of the product 1 to be transported after being trimmed.

The air injection unit 513 is configured to inject air toward the upper portion of the trimmed and transported product 1, and the first air configuration is perpendicular to the lower portion of the body portion 511 An injection nozzle 513a, a second air injection nozzle 513b configured on one side of the first air injection nozzle 513a and inclined downward to one side, and a configuration on the other side of the first air injection nozzle 513a. It is composed of a third air injection nozzle 513c configured to be inclined downward to the other side.

That is, the first air injection nozzle 513a is configured to inject air from the upper side to the lower side of the lower part of the body 511, and the second air injection nozzle 513b is inclined downward to one side. It is configured to inject air, and the third air injection nozzle 513c is configured to inject air in a direction inclined downward to the other side, so that the product 1 that is trimmed and transported This is to effectively remove the upper foreign matter.

Here, as shown in FIG. 11, the first air blowing nozzle 513a, the second air blowing nozzle 513b, and the third air blowing nozzle 513c may be configured in plurality.

The suction part 515 is configured at both ends of the body part 511 and is configured to suck in foreign substances scattered by the air injected from the air blowing part 513 .

The second cleaning part 530 is composed of a body part 531, an air blowing part 533 and a suction part 535.

The body portion 531 is configured to be spaced apart from the lower portion of the product 1 to be transported after being trimmed.

The air injection unit 533 is configured to inject air toward the lower portion of the trimmed and transported product 1, and the first air configured vertically to the upper portion of the body portion 531 An injection nozzle 533a, a second air injection nozzle 533b configured on one side of the first air injection nozzle 533a and inclined upward to one side, and a configuration on the other side of the first air injection nozzle 533a. It consists of a third air injection nozzle (533c) configured to be inclined upward to the other side.

That is, the first air injection nozzle 533a is configured to inject air from the lower side to the upper side of the body part 531, and the second air injection nozzle 533b is inclined upward to one side. It is configured to inject air, and the third air injection nozzle 533c is configured to inject air in an upwardly inclined direction to the other side, so that the product 1 that is trimmed and transported This is to effectively remove the lower foreign matter.

Here, as shown in FIG. 11, the first air injection nozzle 533a, the second air injection nozzle 533b, and the third air injection nozzle 533c may be configured in plurality.

The suction part 535 is configured at both ends of the body part 531 to suck in foreign substances scattered by the air injected from the air blowing part 533 .

According to the method for manufacturing a resin molding including a skin material according to the present invention, the original purpose of being able to vacuum mold into a product shape by adsorbing a softened material to a mold by vacuum pressure is maintained, and at the same time, the skin material is described. By using the material integrally adhered to the inside and wound in a roll shape, the material can be continuously inputted to enable mass production, and the time required for the work process by omitting the process of injecting the base material into the conventional skin material and to reduce costs, and according to the shape of various interior materials for vehicles, conventional vehicle interior materials need to modify the process of forming the skin material and base material, respectively, whereas the present invention is relatively easily manufactured by modifying only the process of the vacuum forming step. It is a useful invention that can improve the economic efficiency through work efficiency and cost reduction.

S100: Material preparation and input step
S200: heating and softening step
S300: vacuum forming step
S400: product take-out step
S500: Cutting step
S600: Trimming processing step
S700: assembly step
S800: washing step
1: Product
10: Materials
11: skin material
13; write
100: heating device
110: first heating unit
130: second heating unit
200: mold
300: cutting part
400: cooling unit
500: washing unit
510: first cleaning unit
511: body part
513: air injection unit
513a: first air injection nozzle
513b: second air injection nozzle
513c: third air injection nozzle
515: inlet
530: second cleaning unit
531: body part
533: air injection unit
533a: first air injection nozzle
533b: second air injection nozzle
533c: third air injection nozzle
535: inlet
h : hole
s: auxiliary pressing part

Claims (8)

A material preparation and input step (S100) of providing a material 10 to which the skin material 11 and the base material 13 are integrally bonded and inputting the material 10 into the heating device 100;
A heating and softening step (S200) of heating and softening the input material 10 with a heating device 100;
A vacuum forming step (S300) of pressing the softened material 10 transferred from the heating device 100 into a mold 200 and adsorbing the material 10 to the mold 200 with vacuum pressure to form the mold;
A product take-out step (S400) of cooling the vacuum-formed product and releasing it from the mold 200 to take it out;
In the material preparation and input step (S100),
When the material 10 is put into the heating device 100, the skin material 11 is located at the bottom and the substrate 13 is located at the top so that it can be put in,
The heating device 100,
It consists of a first heating unit 110 for heating the upper part of the material 10 introduced into the heating device 100 and a second heating unit 130 for heating the lower part,
In the heating and softening step (S200), the first heating unit 110 heats the upper part of the material 10 at 330 ° C for 55 to 105 seconds, and the second heating unit 130 heats the upper part at 370 ° C for 55 seconds. heating the bottom of the material 10 for ~ 105 seconds;
In the product take-out step (S400), the vacuum-formed product is cooled to 10° C. for 55 seconds using the cooling unit 400,
In the material preparation and inputting step (S100), the skin material 11 is integrally adhered to the inside of the base material 13 and the material 10 wound in a roll shape is provided, and the wound material 10 is unwound and heated. To be put into the device 100,
In the product taking out step (S400), the taken out product is transferred to the cutting unit 300,
After the product take-out step (S400), a cutting step (S500) of obtaining by cutting the conveyed product using the cutting unit 300; and
A trimming processing step (S600) of trimming the product obtained through the cutting step (S500);
In the trimming processing step (S600), the product obtained through the cutting step (S500) is trimmed and transferred to the cleaning unit 500,
After the trimming processing step (S600), the first cleaning unit 510 and the second cleaning unit 530 are configured to be spaced apart from each other at the top and bottom of the trimmed and transported product. A washing step (S800) of washing the product to be trimmed and transported using the washing unit 500 is included,
The first cleaning unit 510,
The body portion 511,
A first air blowing nozzle 513a formed perpendicular to the lower part of the body 511, and a second air blowing nozzle 513b formed on one side of the first air blowing nozzle 513a and inclined downward to one side ) And an air blowing unit 513 composed of a third air blowing nozzle 513c configured on the other side of the first air blowing nozzle 513a and inclined downward to the other side,
It is composed of a suction part 515 configured at both ends of the body part 511 to suck foreign substances scattered by the air injected from the air blowing part 513,
The second cleaning unit 530,
The body portion 531,
A first air blowing nozzle 533a formed vertically on the upper part of the body part 531, and a second air blowing nozzle 533b formed on one side of the first air blowing nozzle 533a and inclined upward to one side. ) And an air blowing unit 533 composed of a third air blowing nozzle 533c configured on the other side of the first air blowing nozzle 533a and inclined upward to the other side,
Including a skin material characterized in that it is composed of a suction part 535 configured at both ends of the body part 531 to suck foreign substances scattered by the air injected from the air blowing part 533 Method for manufacturing resin moldings.
delete delete According to claim 1,
In the vacuum forming step (S300),
The mold 200 is located under the softened material 10 transferred from the heating device 100 and moves upward to pressurize the lower part of the softened material 10, and the upper part of the mold 200 After moving the auxiliary pressing part (s) located in the lower side to press the upper part of the softened material 10, and then adsorbing to the mold 200 with vacuum pressure to form a skin material comprising a skin material Method for manufacturing resin moldings.
delete According to claim 1,
At least 2 manufactured through the material provision and input step (S100), heating and softening step (S200), vacuum forming step (S300), product take-out step (S400), cutting step (S500) and trimming processing step (S600) A method of manufacturing a resin molding including a skin material, characterized in that it includes an assembling step (S700) of assembling and combining at least one product. delete delete

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