KR102165594B1 - Forming mold and forming method of interior material for vehicle - Google Patents

Abstract

The present invention relates to a forming mold and forming method of an interior material for a vehicle interior, comprising: a first lower mold in which a first convex molding part is formed and a first cutting part is installed on both sides of the first convex molding part; a lower mold part including a second lower mold having a second convex molding part and a cavity communicating with an upper surface of the second convex molding part; and an upper mold part including a first upper mold formed with a first concave molding part, having a second cutting part on both sides of the first concave molding part, and die spotting in the first lower mold, and a second upper mold formed with a second concave molding part and die-spotting in the second lower mold. After fibers by die-spotting and insertion of the first lower mold and the first upper mold are press-molded, ends of the fibers are cut by the first and second cutting part to form scraps, at the same time, an injection molded product through the cavity is injection-molded on a lower surface of a primary molded product by die-spotting and insertion of the second lower mold and the second upper mold, and various processes in parts production are integrated and reduced by implementing press molding, cutting molding and injection molding in one machine, thereby reducing manpower, transportation costs for semi-finished products, and costs.

Description

Forming mold and forming method of interior material for vehicle}

The present invention relates to a vehicle interior molding mold and a molding method, and more particularly, press molding, cutting molding, and injection molding in one equipment, thereby integrating and reducing various processes in the production of parts. And a molding method.

In general, several parts are installed in a vehicle.

Among the parts installed in the vehicle, the parts installed on the interior side of the vehicle are called vehicle interior materials, and there are various types of interior materials for vehicles such as headlining, door trim, pillar, and trunk mat.

Such vehicle interior materials are manufactured to reinforce insufficient strength due to fiber materials by injection-molding plastic injection moldings such as ribs or brackets on one side of the fiber molded product, and in this case, the interior materials for vehicles are manufactured through various molding devices and manufacturing processes.

The following description will be given of a molding apparatus and a manufacturing process for a vehicle interior material related thereto.

First, as shown in (a) to (c) of Fig. 1, a preforming process is performed.

In the pre-forming process, the fibers 1 are preheated and inserted into a press mold composed of an upper mold 2 and a lower mold 3 (Fig. 1(a)), and the upper mold 2 and the lower mold 3 are molded to be preheated. After pressing the fiber 1 (Fig. 1(b)), the press-molded fiber molded article 1a is demolded (Fig. 1(c)) to complete.

Next, as shown in (d) to (f) of Fig. 1, the cutting process proceeds.

In the cutting process, the press-molded fiber molded product (1a) is inserted into a cutting mold composed of an upper mold (2a) and a lower mold (3a) (Fig. 1(d)), and the upper mold (2a) and the lower mold (3a) are molded to be pressed. After cutting the unnecessary part of the molded fiber molded product 1a with a knife 4 (Fig. 1(e)), and taking out the fiber molded product 1b from which the unnecessary part has been cut (Fig. 1(f)) do.

Next, as shown in (g) to (i) of Figure 1, the injection process proceeds.

In the injection process, the cut fiber molded product (1b) is inserted into an injection mold composed of an upper mold (2b) and a lower mold (3b) (Fig. 1 (g)), and the upper mold (2b) and the lower mold (3b) are molded to be cut. After injection molding (Fig. 1(h)) of the injection product 1c through the cavity 5 on one side of the fiber molded article 1b, the manufactured automobile part 1d is taken out (Fig. 1(i)). Is completed.

However, such a conventional vehicle interior molding mold and molding method has a problem in that the preforming process, the cutting process, and the injection process are individually performed in separate equipment.

In addition, the conventional vehicle interior molding mold and molding method have a problem in that the cost required for manufacturing automobile parts increases because each process is individually performed in separate equipment.

In addition, conventional vehicle interior molding molds and molding methods have a problem in that product quality may be degraded, such as product deformation, since the product is manufactured by moving between various manufacturing processes.

The present invention was conceived to solve the above-described problem, and by implementing press molding, cutting molding, and injection molding in one equipment, it is possible to integrate and reduce various processes in the production of parts, thereby reducing manpower and transporting semi-finished products. It is an object of the present invention to provide a vehicle interior molding mold and a molding method in which reduction and cost reduction can be achieved.

In the vehicle interior molding mold of the present invention for solving the above problems, a first lower mold is formed with a first convex molding part, a first cutting part is installed on both sides of the first convex molding part, and a second convex molding part A lower mold portion including a second lower mold having a cavity communicating with an upper surface of the second convex molding portion; A first concave molding part is formed, a second cutting part is installed on both sides of the first concave molding part, and a first upper mold molded to the first lower mold, and a second concave molded part is formed and molded to the second lower mold. Including, the first lower mold and the first upper mold are molded and the inserted fiber is press-molded by the first cutting part and the second cutting part. The end of the fiber is cut to form a scrap, and at the same time, the second lower mold and the second upper mold are molded together to form an injection molded product through the cavity on the lower surface of the inserted primary molded product.

In addition, the first cutting part includes a movable knife installed on a side surface of the first lower mold, and a driving means for movable by pushing or pulling the movable knife, and the second cutting part is installed on the first upper mold And a movable holder supported by the spring and pushed or returned according to the operation of the movable knife, wherein an end of the press-molded fiber is sandwiched between the movable knife and the movable holder, and the driving means It is characterized in that the scrap is formed by being cut by pulling the movable knife.

In addition, a groove portion is formed on a side surface between the upper end and the lower end of the first lower mold, and the movable knife is inserted or extracted through the groove portion.

In addition, the movable knife is inserted into the groove when the fiber is press-formed, and is drawn out from the groove when the end of the press-formed fiber is cut.

In addition, a first inclined surface is formed on the movable knife, and a second inclined surface is formed on the movable holder. When the movable knife is inserted into the groove for press molding of the fiber, the first inclined surface is The first convex forming portion is located on one plane with the first inclined surface, and the second inclined surface is located on one plane with the second inclined surface of the first concave forming portion.

In addition, the first lower mold is provided with a support plate that is movable up and down according to the mold with the first upper mold, and a gap having a step greater than the thickness of the fiber is formed on the support plate, and the support plate is It is characterized in that the bottom surface is disposed to be positioned equal to or higher than the upper end of the first convex forming part, and the end of the fiber is placed on the bottom surface of the gap.

In addition, when the first lower mold and the first upper mold are molded, the lower surface of the movable holder pushes the upper surface of the base plate, and does not contact the upper surface of the fiber placed on the floor surface. do.

In the vehicle interior molding method of the present invention for solving the above problems, fibers are inserted between the first lower mold and the first upper mold, and a primary molded product is inserted between the second lower mold and the second upper mold. An arrangement step; The first lower mold and the first upper mold are molded to form a scrap by cutting the end of the fiber after the fiber is press-molded, and at the same time, the second lower mold and the second upper mold are molded together to form the A molding step of injection-molding an injection product on a lower surface of the primary molded product; And a take-out step of taking out the first molded product in which the injection-molded product is injection-molded on the lower surface of the fiber cut after press molding.

The vehicle interior molding mold and molding method according to the present invention has the following advantages.

In the vehicle interior molding mold and molding method according to the present invention, since press molding, cutting molding, and injection molding are implemented in one equipment, there is an advantage that it can be reduced by integrating various processes in part production.

The vehicle interior molding mold and the molding method according to the present invention have the advantage that manpower reduction, semi-finished transportation cost reduction, and cost reduction can be achieved according to process integration.

The vehicle interior molding mold and molding method according to the present invention has the advantage of improving the quality of the product by suppressing the deformation of the product in the part production process according to the process integration.

In the vehicle interior molding mold and molding method according to the present invention, a stepped gap is applied to the base plate to constrain the end of the inserted fiber without pressing it, thereby preventing the end of the fiber from bursting during press molding, thereby improving formability. There is an advantage that it can be applied to exterior products by preventing folding.

1A to 1C are cross-sectional views schematically showing a preforming process in a conventional vehicle interior manufacturing process.
1(d) to (f) are cross-sectional views schematically showing a cutting process in a conventional vehicle interior manufacturing process.
1 (g) to (i) are cross-sectional views schematically showing an injection process in a conventional vehicle interior manufacturing process.
2 is a cross-sectional view schematically showing a state in which fibers and a primary molded product are respectively inserted into a first lower mold and a second lower mold of a vehicle interior molding mold according to a preferred embodiment of the present invention.
3 is a cross-sectional view schematically showing a state in which a first upper mold and a second upper mold are molded together of a vehicle interior molding mold according to a preferred embodiment of the present invention.
4 is a state in which a movable knife and a movable holder of a vehicle interior molding mold according to a preferred embodiment of the present invention operate to cut the end of the press-molded fiber to remove scrap, and injection-molded an injection molding on the lower surface of the primary molded product. A cross-sectional view schematically showing.
5 is a cross-sectional view schematically showing a state in which a semi-finished primary molded product and a finished secondary molded product are taken out of a vehicle interior molding mold according to a preferred embodiment of the present invention.

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

For reference, among the configurations of the present invention to be described below, the above-described conventional technology will be referred to for the same configuration as the prior art, and a separate detailed description will be omitted.

2 is a cross-sectional view schematically showing a state in which fibers and a primary molded product are respectively inserted into a first lower mold and a second lower mold of a vehicle interior molding mold according to a preferred embodiment of the present invention, and FIG. 3 is a view of the present invention. A cross-sectional view schematically showing a state in which the first upper mold and the second upper mold of the vehicle interior molding mold according to a preferred embodiment are molded, and FIG. 4 is a movable knife of the vehicle interior molding mold according to a preferred embodiment of the present invention. A cross-sectional view schematically showing a state in which the movable holder is operated to cut the end of the press-molded fiber to remove the scrap, and injection-molded an injection molded product on the lower surface of the primary molded product. It is a cross-sectional view schematically showing a state in which the primary molded product as a semi-finished product and the secondary molded product as a finished product are taken out of the vehicle interior molding mold.

As shown in Figures 2 to 5, the vehicle interior molding mold according to a preferred embodiment of the present invention, the first convex molding portion 111 is formed, and the first cutting portion on both sides of the first convex molding portion 111 A second lower mold having a first lower mold 110 in which 114 is installed, a second convex molding part 121 is formed, and a cavity 123 communicating with the upper surface of the second convex molding part 121 ( A lower mold part 100 including 120; A first upper mold 210 is formed with a first concave molding part 211 and a second cutting part 212 is installed on both sides of the first concave molding part 211 and is molded to the first lower mold 110 ), and an upper mold part 200 including a second upper mold 220 that is formed with a second concave molding part 221 and is molded to the second lower mold 120; including, but the first lower part After the mold 110 and the first upper mold 210 are molded and the inserted fiber 10 is press-molded, the fiber 10 is formed by the first cutting part 114 and the second cutting part 212. ) By cutting the end of the scrap (S), and at the same time, the second lower mold 120 and the second upper mold 220 are molded and inserted into the lower surface of the first molded article 20, the cavity ( 123) through injection molding.

The lower mold part 100 includes a base 130, a first lower mold 110 and a second lower mold 120.

The base 130 is a configuration that supports the first lower mold 110 and the second lower mold 120 to be described later, and may be mounted on a floor or a worktable.

A first lower mold 110 is formed on one side of the base 130.

The first lower mold 110 is formed in a shape protruding upward from the left of the upper surface of the base 130, and is preferably in a state fixed to the base 130.

The first lower mold 110 is a fixed mold that supports the inserted fibers 10 to be press-molded, and at this time, the fibers 10 supported by the first lower mold 110 are preferably in a preheated state, and polyethylene tere It is preferably made of any one of phthalate fiber, polypropylene fiber, natural fiber, and synthetic fiber.

When viewed as a whole, the center portion of the first lower mold 110 protrudes upward and is inserted into a concave portion formed in the center of the first upper mold 210 when it is molded with the first upper mold 210 to be described later.

The first lower mold 110 has a first convex molding portion 111 formed in the upper central portion.

The first convex molding part 111 supports the lower surface of the fiber 10 to press-form the fiber 10 together with the first upper mold 210 in a certain form when it is molded with the first upper mold 210 to be described later. Plays a role.

The first convex forming portion 111 has a lower forming surface 111a, which is a central upper surface of the first convex forming portion 111, and a first inclined forming surface 111b bent obliquely at both ends of the first convex forming portion 111, a first to be described later. Both ends of the fiber 10 are bent and molded through the point where the lower molding surface 111a of the first convex molding part 111 and the first inclined molding surface 111b meet during press molding by molding with the upper mold 210 Can be.

The first convex molding portion 111 is formed in a tapered shape in which the width of the left and right increases from the top to the bottom.

The first convex molding part 111 is formed in a shape corresponding to the first concave molding part 211 of the first upper mold 210 to be described later, and the shape of the first convex molding part 111 is the shape of the molding to be formed. May vary depending on.

A groove portion 119 is formed on a side surface between the upper and lower ends of the first lower mold 110.

The groove 119 is a space for securing the stroke distance of the movable knife 115, which will be described later, and is formed to be concave from the left and right sides of the first lower mold 110 toward the center, so that the movable knife 115 is inserted or Can be withdrawn.

Meanwhile, a support plate 113 and a first cutting part 114 are installed on the first lower mold 110.

The base plate 113 is configured to support both ends of the fiber 10 supported by the first lower mold 110, and lifts and descends on the left and right sides of the first lower mold 110 so as to be spaced apart from the first convex mold 111 It is installed to be movable up and down through the bar (113a).

More specifically, the base plate 113 is formed by the lower surface of the movable holder 213 installed on the first upper mold 210 when the first lower mold 110 and the first upper mold 210 to be described later are joined. When the uppermost surface) is pressed and moves downward, or when the pressing by the movable holder 213 is released, it is moved upward by the lifting bar 113a movable by a position restoration cylinder (not shown) or other position restoration means (not shown). .

A gap 113b is formed on the base plate 113.

The gap 113b is formed in a form in which the upper one side of the support plate 113 is recessed.

In the case of the base plate 113 installed on the left side of the first lower mold 110, a gap 113b is formed in a state in which the upper and right surfaces of the base plate 113 are partially cut, that is, the right edge portion is cut, In the case of the base plate 113 installed on the right side of the first lower mold 110, a gap 113b is formed in a state in which the upper and left surfaces of the base plate 113 are partially cut, that is, the left edge is cut. .

The gap 113b is formed to have a step, wherein the step refers to a height difference between the uppermost end surface of the base plate 113 and the inner bottom surface 113c of the gap 113b positioned below it, and the gap 113b is It is preferable to be formed to have a step greater than the thickness of the fiber (10).

The end of the fiber 10 supported by the first lower mold 110 is accommodated in the gap 113b, and the fiber 10 supported by the first lower mold 110 is provided on the inner bottom surface 113c of the gap 113b. The bottom of the end of) is raised and supported.

The base plate 113 is disposed so that the bottom surface 113c of the gap 113b is positioned equal to or higher than the upper end of the first convex molding part 111 before the fiber 10 is placed on the base plate 113, so that the gap 113b The end of the fiber 10 is put on the bottom surface 113c of.

More specifically, the bottom surface 113c of the gap 113b is located on the same line as the lower forming surface 111a of the first convex forming part 111, and the gap 113b between the left base plate 113 and the right base plate 113 ) Both ends of the fiber 10 are raised on the bottom surface 113c, and the central portion of the fiber 10 is raised on the lower forming surface 111a of the first convex forming part 111.

In addition, the bottom surface 113c of the gap 113b is located higher than the lower forming surface 111a of the first convex forming part 111, and the bottom surface of the gap 113b of the left base plate 113 and the right base plate 113 Both ends of the fiber 10 are raised on the (113c), and the lower molding surface 111a of the first convex molding part 111 is disposed so as to be spaced apart from the fiber 10, so that the fiber ( The central part of 10) may be configured to be supported on the lower molding surface 111a of the first convex molding part 111.

The uppermost surface of the support plate 113 is always positioned higher than the lower forming surface 111a of the first convex forming portion 111.

When the first upper mold 210, which will be described later, moves and is molded to the first lower mold 110, the upper surface of the end of the fiber 10 supported on the inner bottom surface 113c of the gap 113b is a movable holder to be described later. Only the uppermost surface of the base plate 113 is pressed by the movable holder 213 without contacting the lower surface of the 213.

This is to prevent bursting of the edge during press molding by constraining the edge of the inserted fiber 10 without pressing it.

The inner side of the gap 113b formed in the support plate 113 installed on the left side and the inner side of the gap 113b formed in the support plate 113 installed on the right side can be constrained so that the inserted fiber 10 does not deviate in the horizontal direction. have.

Meanwhile, first cutting portions 114 are installed on both left and right sides of the first lower mold 110 adjacent to each support plate 113.

The first cutting part 114 is installed to cut the end of the pressed fiber 10, that is, an unnecessary part, together with the second cutting part 212 to be described later.

The first cutting part 114 includes a movable knife 115 and a driving means 117.

The movable knife 115 is a configuration for cutting at least a portion of the press-molded fiber 10 together with the movable holder 213 to be described later, and cuts unnecessary flange portions at the end of the press-molded fiber 10 to scrap It is installed on the left and right lower sides of the first convex forming part 111 to form (S), and is connected to a driving means 117 such as a cylinder so as to operate in a horizontal direction by a stroke distance of a predetermined interval.

The movable knife 115 is operated by a driving means 117 that pushes or pulls the movable knife 115 to move the inner upper surface of the groove 119 formed in the first lower mold 110 as a stroke distance.

More specifically, the movable knife 115 is press-formed by operating outward in the horizontal direction by the operation of the driving means 117 while sandwiching the end of the press-molded fiber 10 between the movable holder 213 to be described later. The end of the fiber 10 is cut to form a scrap (S).

Here, forming the scrap (S) means removing unnecessary parts of the press-molded fiber (10).

The movable knife 115 is inserted into the groove 119 during press molding of the fiber 10, and is drawn out from the groove 119 when cutting the end of the press-molded fiber 10.

A first inclined surface 115a is formed on the movable knife 115.

The first inclined surface 115a is a configuration for cutting by pressing the end of the press-molded fiber 10 together with the second inclined surface 213b of the movable holder 213 to be described later, and the left side of the first lower mold 110 The first inclined surface 115a of the movable knife 115 installed in the movable knife 115 is formed to have a slope that gradually increases from left to right, and the first inclined surface 115a of the movable knife 115 installed on the right side of the first lower mold 110 ) Is formed to have a slope that gradually decreases from left to right.

The first inclined surface 115a of the movable knife 115 installed on the left side of the first lower mold 110 has the same inclination as the left first inclined surface 111b of the first convex forming part 111, and the first lower part The first inclined surface 115a of the movable knife 115 installed on the right side of the mold 110 has the same inclination as the first inclined surface 111b on the right side of the first convex forming portion 111.

For this reason, when the movable knife 115 is inserted into the groove 119 for press molding of the fiber 10, the first inclined surface 115a of the movable knife 115 It is located on one plane with the first inclined molding surface 111b.

On the other hand, a second lower mold 120 is formed on one side of the first lower mold 110.

The second lower mold 120 is formed to protrude upward from the right of the upper surface of the base 130, and is preferably in a state fixed to the base 130.

The second lower mold 120 is a fixed mold for injection-molding the injection product 30 on the first molded product 20 supported by supporting the inserted primary molded product 20, and is parallel to the first lower mold 110. It is formed, and is formed spaced apart from the first lower mold 110 left and right.

Here, the primary molded product 20 is a molded product in which the fibers 10 are preformed for insert injection, and the press molding of the fibers 10 by the first lower mold 110 and the first upper mold 210 to be described later is performed. It is manufactured in advance through, or in addition, is manufactured in advance through cutting of at least a portion and inserted into the second lower mold 120.

The second lower mold 120, like the first lower mold, has a central portion protruding upward and is inserted into a concave portion formed in the center of the second upper mold 220 when it is molded with the second upper mold 220 to be described later. .

The second lower mold 120 has a second convex molding portion 121 formed in the center of the upper surface.

The second convex molding part 121 supports the lower surface of the first molded product 20 and serves to support the lower surface of the first molded product 20 when it is molded with the second upper mold 220 to be described later. It is preferable to have a shape corresponding to the shape of the lower surface of (20).

The second convex forming portion 121 has a lower supporting surface 121a, which is a central upper surface, and a first inclined supporting surface 121b bent obliquely to both sides at both ends, that is, the second convex forming portion 121 is from the upper side to the lower side. It is formed in a tapered shape with increasing left and right widths.

The second convex molding portion 121 is formed in a shape corresponding to the second concave molding portion 221 of the second upper mold 220 to be described later.

A cavity 123 is provided in the second lower mold 120.

The cavity 123 is formed in the shape of a groove communicating with the upper surface of the second lower mold 120, that is, the lower support surface 121b of the second convex molding part 121, and supported by the second lower mold 120. It is a configuration for injection molding the injection product 30 on the lower surface of the primary molded product 20.

The cavity 123 may be formed into various grooves according to the shape of the required injection product 30, and may receive injection liquid (resin) through the gate 125 formed inside the second lower mold 120. have.

Meanwhile, the upper mold part 200 includes a moving part 230, a first upper mold 210 and a second upper mold 220.

The moving part 230 is installed to face the base 130 and is installed to be movable up and down by a driving part (not shown).

The moving unit 230 is a configuration for simultaneously moving the first upper mold 210 and the second upper mold 220 to be molded or opened to the first lower mold 110 and the second lower mold 120, respectively. .

A first upper mold 210 is formed on one side of the moving part 230.

The first upper mold 210 is formed to protrude from the left side to the lower side of the lower surface of the moving part 230 and is preferably in a state fixed to the moving part 230.

The first upper mold 210 is a configuration for press molding by pressing the fibers 10 supported by the first lower mold 110 according to the mold with the first lower mold 110, and the moving part 230 It is a moving mold that can move up and down through it.

The first upper mold 210 is formed with a central portion concave upward, so that the central portion of the first lower mold 110 is inserted when the first lower mold 110 is molded with the first lower mold 110.

The first upper mold 210 has a first concave molding portion 211 formed at the center of the lower surface thereof.

The first concave molding part 211 serves to press the upper surface of the fiber 10.

The first concave forming portion 211 has an upper forming surface 211a that is a central upper surface and a second inclined forming surface 211b bent obliquely to both sides at both ends thereof, that is, the first concave forming portion 211 The first upper mold 210 is formed in a tapered shape in which the width of left and right increases from the upper side to the lower side so as to correspond to the first convex molding part 111 so that the first upper mold 210 can be fitted to the first lower mold 110.

The shape of the first concave molding portion 211 may vary according to the shape of the molded object to be molded, similar to the shape of the first convex molding portion 111.

A second cutting part 212 is installed on the first upper mold 210.

The second cutting portion 212 is a configuration for cutting unnecessary portions of the end of the press-molded fiber 10 by interaction with the first cutting portion 114, and is located on both left and right sides of the first concave forming portion 211 Each is formed.

The second cutting part 212 includes a spring 213a installed on the first upper mold 210, and a movable holder 213 supported by the spring 213a and pushed or returned according to the operation of the movable knife 115. Includes.

The spring 213a supports the movable holder 213 while being installed on one side of the first upper mold 210.

The spring 213a is a configuration for imparting an elastic force to the movable holder 213, and applies an elastic force to the movable holder 213 pushed by the movement of the movable knife 115 to further apply pressure toward the movable knife 115 or When the push by 115 is released, the movable holder 213 is restored to its original position.

The movable holder 213 cuts the end of the press-molded fiber 10 together with the movable knife 115 to remove the scrap (S), and molds the first lower mold 110 and the first upper mold 210 It is a configuration for pressing the top surface (topmost surface) of the support plate 113.

The movable holder 213 is installed to be horizontally movable, respectively, on the lower left and right ends of the first upper mold 210.

More specifically, as described above, the movable holder 213 is supported by a spring 213a so as to be horizontally movable and can be pushed and moved according to the operation of the movable knife 115, and when the external force by the movable knife 115 is removed It is restored to its original state by the restoring force of the spring 213a.

A second inclined surface 213b is formed on the movable holder 213.

The second inclined surface 213b is a configuration for cutting by pressing the end of the press-molded fiber 10 together with the first inclined surface 115a of the movable knife 115, and is installed on the left side of the first upper mold 210. The second inclined surface 213b of the movable holder 213 is formed to have a slope that gradually increases from left to right, and the second inclined surface 213b of the movable holder 213 installed on the right side of the first upper mold 210 is It is formed to have a slope that gradually decreases from left to right.

The second inclined surface 213b of the movable holder 213 installed on the left side of the first upper mold 210 has the same inclination as the left second inclined surface 211b of the first concave forming part 211, and the first The second inclined surface 213b of the movable holder 213 installed on the right side of the upper mold 210 has the same inclination as the right second inclined forming surface 211b of the first concave forming portion 211.

Accordingly, when the movable holder 213 is not pushed by the movable knife 115, the second inclined surface 213b of the movable holder 213 is It is located on one plane with the two inclined molding surface 211b.

The end of the press-molded fiber 10 is between the movable knife 115 and the movable holder 213 in the state in which the first lower mold 110 and the first upper mold 210 are joined, that is, the first inclined surface 115a And the second inclined surface 213b is pressed, and the movable knife 115 is pulled out from the groove 119 and operated horizontally outward, thereby cutting the end of the press-molded fiber 10 to form a scrap (S). .

Meanwhile, a second upper mold 220 is formed on one side of the first upper mold 210.

The second upper mold 220 presses the first molded product 20 supported by the second lower mold 120 according to the molding with the second lower mold 120 so that the lower surface of the first molded product 20 becomes the second As a configuration to be in close contact with the upper surface of the lower mold 120, it is a moving mold that can move up and down through the moving part 230 like the first upper mold 210, and as the moving part 230 moves, the first It moves in the same direction as the upper mold 210 moves up and down.

That is, the second upper mold 220 presses the primary molded product 20 supported by the second lower mold 120 so that the lower surface of the primary molded product 20 is in close contact with the upper surface of the second lower mold 120. In this case, the first upper mold 210 is also press-molded by pressing the fibers 10 supported by the first lower mold 110.

The second upper mold 220 has a central portion concave upward, so that the central portion of the second lower mold 120 is inserted when it is molded with the second lower mold 120.

The second upper mold 220 has a second concave molding portion 221 formed in the center of the upper surface.

The second concave molding portion 221 serves to pressurize the upper surface of the primary molded product 20, and preferably has the same shape as the shape of the upper surface of the primary molded product 20.

The second concave forming part 221 has an upper supporting surface 221a that is a central upper surface and a second inclined supporting surface 221b bent obliquely to both sides at both ends, that is, the second concave forming part 221 is The second upper mold 220 can be fitted to the second lower mold 120 by being formed in a tapered shape whose left and right widths increase from the upper side to the lower side so as to correspond to the two convex molding portion 121.

By the above-described configurations, the fibers 10 inserted between the first lower mold 110 and the first upper mold 210 are pressed by the first upper mold 210 as the moving part 230 moves. After press molding, the movable knife 115 is operated to remove the scrap (S) to become a semi-finished primary molded product 20, and at the same time, between the second lower mold 120 and the second upper mold 220 The inserted primary molded product 20 is in close contact with the second lower mold 120 by the second upper mold 220 according to the movement of the moving part 230, and then the injection product 30 is placed on the lower surface through the cavity 123. ) Is injection-molded to become a secondary molded product 40 that is a finished product, and a press process, a cutting process, and an injection process may be integrated through the lower mold part 100 and the upper mold part 200.

Hereinafter, a method for forming an automobile part according to a preferred embodiment of the present invention will be described.

As shown in Figures 2 to 5, the vehicle interior molding method according to a preferred embodiment of the present invention, the fiber 10 is inserted between the first lower mold 110 and the first upper mold 210, An arrangement step in which the first molded product 20 is inserted between the second lower mold 120 and the second upper mold 220; After the first lower mold 110 and the first upper mold 210 are molded and the fibers 10 are press-molded, the ends of the fibers 10 are cut to form a scrap S, and at the same time, the second lower mold A molding step in which the injection molding 30 is injection-molded on the lower surface of the primary molded product 20 by molding 120 and the second upper mold 220; It includes a takeout step of taking out the first molded product 20 in which the cut fiber 10 and the injection product 30 are injection-molded on the lower surface after press molding.

First, the placement step is carried out.

In the arrangement step, a fiber 10 is inserted between the first lower mold 110 formed on one side of the base 130 and the first upper mold 210 formed on one side of the moving part 230 opposite thereto, and at the same time This is a step in which the first molded product 20 is inserted between the second lower mold 120 formed on the other side of the base 130 and the second upper mold 220 formed on the other side of the moving part 230 opposite thereto.

More specifically, in the arrangement step, the fiber 10 is supported by being raised on the lower molding surface 111a of the first convex molding part 111 formed in the first lower mold 110, and at the same time, both ends of the fiber 10 The gap 113b of 113) is raised and supported on the inner bottom surface 113c, and the primary molded product 20 is a lower support surface 121a of the second convex molding portion 121 formed on the second lower mold 120 and It is supported by being raised on the first inclined support surface 121b.

At this time, the fiber 10 is disposed in a form in which both ends are raised only on the bottom surface 113c of the support plates 113 on both sides, and then the lower molding surface of the first convex molding 111 according to the lowering of the support plates 113 ( 111a).

In addition, it is preferable that the fiber 10 is in a preheated state prior to the placement step.

Next, the shaping step is carried out.

In the forming step, as the moving part 230 moves downward, the first lower mold 110 and the first upper mold 210 are molded and the fiber 10 is press-molded, and the end of the fiber 10 is cut. The scrap (S) is formed, and at the same time, the second lower mold 120 and the second upper mold 220 are molded, and the injection molded product 30 is injection-molded on the lower surface of the first molded product 20.

More specifically, when the moving part 230 moves toward the base 130, the lower surface of the movable holder 213 installed on the first upper mold 210 is of the support plate 113 so as not to press both ends of the fiber 10. Press only the top surface to move the base plate 113 downward, and the first concave molding portion 211 of the first upper mold 210 and the second inclined surface 213b of the movable holder 213 are the first lower mold 110 The first inclined surface 115a of the movable knife 115 and the first inclined surface 115a of the movable knife 115 are pressed and molded by pressing the fiber 10 corresponding to the first convex forming part 111 and the first inclined surface 115a of the movable knife 115. The end of the pressurized fiber 10 sandwiched between the second inclined surfaces 213b of 213) is cut as the movable knife 115 is drawn out from the groove 119 in the horizontal direction to form a scrap (S). (10) is manufactured as a semi-finished primary molded product.

In addition, at the same time, the second concave molding portion 221 of the second upper mold 220 corresponds to the second convex molding portion 121 of the second lower mold 120 so that the primary molded product 20 has a second convexity. The injection molding 30 is injection-molded on the lower surface of the first molded product 20 in close contact with the mold part 121 and in close contact with the second convex molding part 121 through a cavity 123 in communication with the second convex molding part 121 The finished product, the secondary molded product, is produced.

Next, the take-out step is carried out.

The take-out step is a step of taking out the first molded product in which the cut fiber and the injection-molded product are injection-molded on the lower surface after press molding.

More specifically, in the take-out step, as the moving part 230 moves upward, the first lower mold 110 and the first upper mold 210 are opened and at the same time, the second lower mold 12 and the second upper mold 220 ) Is molded, and the first molded article 20, which is a semi-finished product manufactured by removing unnecessary scraps (S) from both ends after press-molding the fibers 10, is replaced with the first lower mold 110 and the first upper mold 210 The secondary molded product 40, which is a finished product manufactured by injection molding the injection product 30 on the lower surface of the first molded product 20 after taking the first molded product 20 in close contact with the second lower mold 120 ) Is taken out from the second lower mold 120 and the second upper mold 220.

In this way, the production of the primary molded article 20 as a semi-finished product and the secondary molded article 40 as a finished product are completed through the arrangement step, the forming step and the take-out step.

As described above, although the present invention has been described by limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit and the following by those of ordinary skill in the art to which the present invention pertains. It goes without saying that various modifications and variations are possible within the equal range of the claims to be described.

10: fiber 20: primary molded product
30: injection product 40: secondary molded product
100: lower mold part 110: first lower mold
111: first convex forming portion 111a: lower forming surface
111b: first inclined molding surface 113: base plate
113a: lifting bar 113b: gap
113c: bottom surface 114: first cutting part
115: movable knife 115a: first slope
117: drive means 119: groove
120: second lower mold 121: second convex molding
121a: lower support surface 121b: first slope support surface
123: cavity 125: gate
130: base 200: upper mold part
210: first upper mold 211: first concave molding
211a: upper molding surface 211b: second inclined molding surface
212: second cutting part 213: movable holder
213a: spring 213b: second slope
220: second upper mold 221: second concave molding
221a: upper support surface 221b: second slope support surface
230: moving part S: scrap

Claims (8)

A second lower mold having a first convex forming portion and having a first cutting portion installed on both sides of the first convex forming portion, and a second convex forming portion and having a cavity communicating with the upper surface of the second convex forming portion A lower mold portion including a lower mold;
A first upper mold is formed with a first concave molding part, a second cutting part is installed on both sides of the first concave molding part, and a first upper mold molded to the first lower mold, and a second concave molded part is formed Including; an upper mold part including a second upper mold
After the first lower mold and the first upper mold are molded and the inserted fiber is press-molded, the end of the fiber is cut by the first cutting part and the second cutting part to form scrap, and at the same time, the An injection molded product is injection-molded through the cavity on the lower surface of the first molded product in which the second lower mold and the second upper mold are molded and inserted,
The first lower mold is provided with a support plate that is movable up and down according to the mold with the first upper mold,
The support plate is formed with a gap having a step greater than the thickness of the fiber,
The base plate is a vehicle interior molding mold, characterized in that the bottom surface of the gap is disposed to be positioned equal to or higher than the upper end of the first convex forming portion, and the end of the fiber is placed on the bottom surface of the gap.
The method according to claim 1,
The first cutting part includes a movable knife installed on a side surface of the first lower mold, and a driving means for movable by pushing or pulling the movable knife,
The second cutting part includes a spring installed on the first upper mold, and a movable holder supported by the spring and pushed or returned according to the operation of the movable knife,
An end of the press-molded fiber is sandwiched between the movable knife and the movable holder, and the driving means is cut by pulling the movable knife to form the scrap.
The method according to claim 2,
A groove is formed on a side surface between the upper and lower ends of the first lower mold,
Vehicle interior molding mold, characterized in that the movable knife is inserted or withdrawn through the groove.
The method of claim 3,
The movable knife is inserted into the groove during press molding of the fiber, and is drawn out from the groove when cutting the end of the press-molded fiber.
The method of claim 4,
A first slope is formed on the movable knife,
A second slope is formed on the movable holder,
When the movable knife is inserted into the groove for press molding of the fiber, the first inclined surface is located on one plane with the first inclined surface of the first convex forming part, and the second inclined surface 1 A vehicle interior molding mold, characterized in that it is located on one plane with the second inclined molding surface of the concave molding part.
delete The method according to claim 2,
When the first lower mold and the first upper mold are molded,
The lower surface of the movable holder pushes the upper surface of the base plate,
Vehicle interior molding mold, characterized in that it does not contact the upper surface of the fiber placed on the bottom surface. delete

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