KR20140060833A - Forming apparatus for vehicle floor mat and method using the same - Google Patents

Forming apparatus for vehicle floor mat and method using the same Download PDF

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Publication number
KR20140060833A
KR20140060833A KR1020120127650A KR20120127650A KR20140060833A KR 20140060833 A KR20140060833 A KR 20140060833A KR 1020120127650 A KR1020120127650 A KR 1020120127650A KR 20120127650 A KR20120127650 A KR 20120127650A KR 20140060833 A KR20140060833 A KR 20140060833A
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KR
South Korea
Prior art keywords
floor mat
lower mold
resin
mold
pvc sheet
Prior art date
Application number
KR1020120127650A
Other languages
Korean (ko)
Inventor
이상배
Original Assignee
가야미 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 가야미 주식회사 filed Critical 가야미 주식회사
Priority to KR1020120127650A priority Critical patent/KR20140060833A/en
Publication of KR20140060833A publication Critical patent/KR20140060833A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0057—Producing floor coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/08—Copolymers of ethylene
    • B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/16—EPM, i.e. ethylene-propylene copolymers; EPDM, i.e. ethylene-propylene-diene copolymers; EPT, i.e. ethylene-propylene terpolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2627/00—Use of polyvinylhalogenides or derivatives thereof for preformed parts, e.g. for inserts
    • B29K2627/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/732—Floor coverings
    • B29L2031/7324—Mats

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Passenger Equipment (AREA)

Abstract

The present invention relates to a forming apparatus for an automotive floor mat which manufactures a floor mat in a desired shape while reducing the deformation of the floor mat and decreasing a failure rate by injecting a molten resin within a mold and performing molding, and to a forming method for an automotive floor mat using the same. The forming apparatus for an automotive floor mat comprises: a lower mold which accommodates a PVC sheet in an upper part; an upper mold which is arranged at the upper part of the lower mold; and a hot runner which is formed in the lower mold, wherein a resin thermally attached to the PVC sheet flows in. The forming method for an automotive floor mat of the present invention comprises: a step of safely arranging the PVC sheet on the lower mold; a step of performing sealing by lowering the upper mold while leaving the PVC sheet settled in the lower mold; a step of injecting the resin through the hot runner formed in the lower mold; and a step of thermally attaching the injected resin to the PVC sheet. An automotive floor mat according to the present invention reduces deformation and decreases a failure rate by injecting the resin of a molten state into the mold, eliminates material waste since the resin is injected in a shape of a project, increases work efficiency by simplifying a process and exhibits excellent sound insulation and sound absorption performances, wherein one among the important functions of an automotive floor mat is to prevent outdoor noise from flowing in.

Description

TECHNICAL FIELD [0001] The present invention relates to a vehicle floor mat forming apparatus and a vehicle floor mat forming method using the same,

The present invention relates to a floor mat forming apparatus and a molding method installed on an indoor floor of an automobile. More particularly, the present invention relates to an apparatus and a method for manufacturing a floor mat which is simple in operation method and excellent in sound insulation performance, will be.

In general, a floor of a vehicle is a panel that forms a bottom surface of a vehicle. A floor mat is installed on the floor to cover the entire vehicle. A seat capable of sitting on the floor is provided on the floor mat do.

A soundproof material is attached to the bottom surface of the floor mat to prevent various noise and pollutants transmitted from the road surface during traveling from penetrating into the interior of the vehicle. There are various types of soundproofing materials, but mainly urethane foam is used .

In addition, on one side of the floor mat, there is installed a dash panel which can easily operate various kinds of equipment of the vehicle, and electric products of various vehicles are mounted on the floor mat.

Conventionally, a floor mat forming method is a method in which a sheet mixed with a PVC sheet and a felt (FELT) is placed in an oven to heat the sheet, and the sheet is placed on the lower mold by an operator, the upper mold is lowered, And the floor mats were formed in the shape.

On the other hand, as a method of forming corrosion of the fibrous sheet, a roll wound in a circular shape is provided, and a corrosive form to be formed is formed on the circumferential surface of the roller in advance.

In this conventional corrosion molding, corrosion is formed on the surface of the fibrous sheet by pressing the fibrous sheet with a roller while releasing the roll. Therefore, the same type of corrosion is formed on the surface of the fibrous sheet.

In addition, the thickness of the fibrous sheet is about 0.5 mm, and the felt attached to the bottom of the fibrous sheet is made of a fiber material so that the sound absorbing property is good but the sound quality is poor.

However, such a conventional method tends to cause deformation because heat is applied to the sheet mixed with PVC and FELT, and the degree of deformation varies depending on the texture of the sheet, so that there is no dimensional stability and consequently, the defect rate of the product is increased , And there is a problem that the work process is delayed due to repeated rework.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a floor mats which are less deformed and less defective by injecting and molding molten resin into a mold, An automobile floor mat forming apparatus, and a method of molding an automobile floor mat using the same.

According to an aspect of the present invention, there is provided an automotive floor mat forming apparatus including: a lower mold for accommodating a fibrous sheet; An upper mold disposed above the lower mold; And a hot runner formed on the lower mold and into which the resin thermally adhered to the fibrous sheet flows.

Further, the method for molding a floor mat of the present invention includes the steps of: placing a fibrous sheet on a lower mold; Closing the upper mold while sealing the Fibersite sheet in the lower mold; Injecting a resin through a hot runner formed in a lower mold; And thermally adhering the injected resin to the fibrous sheet.

The automotive floor mat according to the present invention has an advantageous effect that the deformation is small and the defective ratio is lowered by injecting the resin into the mold in the molten state.

In addition, the resin is injected only in the shape of the product, so there is no waste of the material, and the process is simplified, and an advantageous effect that the workability is improved is generated.

One of the important functions of the floor mat of an automobile is to prevent external noise from entering the room. The automotive floor mat according to the present invention has an advantageous effect of excellent sound insulation and sound absorption performance.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a configuration diagram showing a molding apparatus for a vehicle floor mat according to the present invention. FIG.
2 is a flowchart showing a molding method of a vehicle floor mat according to the present invention.
3 is a schematic view showing a surface of a floor mat according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Even if the terms are the same, it is to be noted that when the portions to be displayed differ, the reference signs do not coincide. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Fig. 1 is a configuration diagram showing a molding apparatus for a vehicle floor mat according to the present invention, and Fig. 2 is a flowchart showing a molding method of a vehicle floor mat according to the present invention.

1, a vehicle floor mat forming apparatus 10 according to the present invention is provided with a driving means 20 on one side and a cylindrical body 21 having a predetermined length on one side of the driving means 20 And a screw (not shown in the drawing) is rotatably installed inside the cylindrical body 20. [

A hopper 22 for supplying resin to the inside of the cylindrical body 21 is fixed to the upper part of the cylindrical body 21. A nozzle 23 is formed at the end of the cylindrical body 21, A mold apparatus 30 is connected.

The mold apparatus 30 includes an upper mold 31 and a lower mold 32. The upper mold 31 is installed to be lifted and lowered by a cylinder 33 and the lower mold 32 is provided with the nozzle 23 And a hot runner 33 connected to the hot runner 33 is formed.

In the automotive floor mat forming method of the present invention, the fibrous sheet 50 is previously molded in a separate mold apparatus (not shown in the drawing), as shown in Fig.

In such a fibrous sheet 50, a composite corrosion is formed as shown in FIG. 3. Such composite corrosion forms various shapes to be molded.

That is, the composite corrosion of the fibrous sheet 50 divides the fibrous sheet 50 into several compartments, molding a circular corrosion in one compartment, forming a triangular corrosion in the other compartment, Shaped corrosion.

The composite corrosion is preferably performed in two or more shapes or shapes, and the composite corrosion is divided into a plurality of compartments to form various types of corrosion.

2 (a), when the upper mold 31 is lifted up and the upper surface of the lower mold 32 is pressed against the upper surface of the lower mold 32, And the sheet 50 is put on.

The upper mold 31 is lowered and the upper and lower molds 31 and 32 are seated as shown in FIG. 2 (b) when the fibrillated sheet 50 is stably placed on the lower mold 32.

The driving device 20 is driven in a state in which the upper and lower dies 31 and 32 are seated and the resin as the powder contained in the hopper 22 is driven by the driving device 20, ), And the introduced resin is transported by screw rotation.

At this time, the resin is transferred along the screw and melted in the high temperature and high pressure state by the frictional heat, and is transferred through the nozzle 23.

The thus transferred high-temperature and high-pressure resin flows into the lower mold 32 through the hot runner 33 of the lower mold 32, as shown in Fig. 2 (c). The resin introduced into the lower mold 32 is fused to the bottom surface of the finge sheet 50 placed on the upper surface of the lower mold 32, as shown in Fig. 2 (d).

When the resin is supplied in an appropriate amount, the drive unit 20 is temporarily stopped to temporarily stop the supply of the resin, and then the upper mold 31 is lifted to discharge the molded product.

That is, in the present invention, the resin transferred into the cylindrical body 21 through the hopper 22 is converted into a liquid phase, and the resin is solidified by the mold apparatus 30 and then cooled.

In the present invention, ethylene-vinyl acetate (EVA) or Ethylene Propylene Diene Monomer (EPDM) melted in the gel state on the bottom surface of the fibrillated sheet 50 is attached to the lower mold 32, The thickness of the floor mat can be freely adjusted. Therefore, since the resin is molded in the preformed plastic sheet 50, the post-distortion such as spring back does not occur.

In addition, since the composite corrosion is formed into a mold, various types of composite corrosion can be formed.

10: molding device 20: driving means
21: Cylindrical body 22: Hopper
23: nozzle 30: mold device
31: upper mold 32: lower mold
33: Hot runner 50: Fibersheet

Claims (4)

A lower mold for accommodating the fibrous sheet at an upper portion thereof;
An upper mold disposed above the lower mold; And
And a hot runner formed on the lower mold and into which the resin thermally adhered to the fibrous sheet flows. The method according to claim 1,
The fibrous sheet is divided into several compartments,
Wherein the partition is formed with corrosion in different forms. The method according to claim 1,
Wherein the resin is an ethylene-vinyl acetate (EVA) or an ethylene propylene diene monomer (EPDM). Placing the fibrous sheet on the lower mold;
Closing the upper mold while sealing the Fibersite sheet in the lower mold;
Injecting a resin through a hot runner formed in a lower mold; And
And thermally adhering the injected resin to the fibrous sheet.
KR1020120127650A 2012-11-12 2012-11-12 Forming apparatus for vehicle floor mat and method using the same KR20140060833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120127650A KR20140060833A (en) 2012-11-12 2012-11-12 Forming apparatus for vehicle floor mat and method using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120127650A KR20140060833A (en) 2012-11-12 2012-11-12 Forming apparatus for vehicle floor mat and method using the same

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KR20140060833A true KR20140060833A (en) 2014-05-21

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102105893B1 (en) 2019-01-31 2020-05-04 (주)대한솔루션 Msd cover for floor mat of electric vehicle
KR102111377B1 (en) 2019-03-13 2020-05-18 (주)대한솔루션 Msd cover for floor mat of electric vehicle
KR20200138470A (en) 2019-05-29 2020-12-10 (주)대한솔루션 Msd cover for floor mat of electric vehicle
KR20200138471A (en) 2019-05-29 2020-12-10 (주)대한솔루션 Msd cover for floor mat of electric vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102105893B1 (en) 2019-01-31 2020-05-04 (주)대한솔루션 Msd cover for floor mat of electric vehicle
KR102111377B1 (en) 2019-03-13 2020-05-18 (주)대한솔루션 Msd cover for floor mat of electric vehicle
KR20200138470A (en) 2019-05-29 2020-12-10 (주)대한솔루션 Msd cover for floor mat of electric vehicle
KR20200138471A (en) 2019-05-29 2020-12-10 (주)대한솔루션 Msd cover for floor mat of electric vehicle

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