JPH0423899B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a skin material pasting method and apparatus for pasting a skin material to a plastic base material having the strength to be used as a component.

[Prior Art] For automobile interior and exterior plastic parts, a skin material is pasted on a plastic base material that has the strength of the part in order to increase its commercial value.

Conventionally, as a method for automatically and continuously manufacturing completed plastic parts by bonding a skin material to a plastic base material, the method disclosed in JP-A-61-193824 and JP-A-61-193830 has been proposed. is considered.

[Problems to be Solved by the Invention] However, in all of the above conventional techniques, the finishing process of wrapping and adhering the peripheral edge of the skin material to the back surface of the plastic base material is performed manually by an operator, resulting in low production efficiency. Moreover, since it requires workers, there are problems such as the inability to save on manpower.

The present invention solves the above-mentioned problems, and is capable of automatically and continuously performing the finishing process of bonding a skin material to a plastic base material and wrapping and bonding the peripheral edge of the skin material to the back surface of the plastic base material. The purpose is to do so.

[Means for Solving the Problems] A first aspect of the present invention provides a skin material in which an adhesive is applied on a lower mold consisting of a lower inner mold that can be raised and lowered and a lower outer mold that has a gas pipe. The upper mold, which consists of an upper inner mold that can be raised and lowered and an upper outer mold that has a cutter, is lowered to press the skin material onto the surface of the plastic base material and remove the skin material. It is cut into a predetermined shape, the upper and lower inner molds are lowered to raise the peripheral edge of the skin material, and gas is injected from the gas pipe to roll the peripheral edge of the skin material onto the back side of the plastic base material, forming the upper and lower inner molds. By raising the mold, the peripheral edge of the skin material is crimped onto the back surface of the plastic base material.

The second invention of the present invention provides a frame-shaped lower outer mold having a notch extending in the circumferential direction at the upper part of the inner peripheral surface, and a gas pipe penetrating from the outside to the upper surface of the lower outer mold and the inner peripheral surface of the notch. A lower inner mold is fit into the lower outer mold so as to be able to move up and down, forming a lower mold, and a frame-shaped upper outer mold having a notch extending in the circumferential direction at the lower part of the inner peripheral surface is formed. A cutter is provided directly above the lower mold so that it can be raised and lowered, and a cutter that can slide on the outer peripheral surface of the lower outer mold when the upper outer mold is lowered is attached to the outer peripheral surface of the upper outer mold. The upper inner mold has a configuration in which an upper inner mold having a conduit is fitted in such a manner that it can be moved up and down to form an upper mold.

The third aspect of the present invention is to place a plastic base material overlaid on a skin material coated with an adhesive on a lower mold consisting of a lower inner mold that can be raised and lowered and a lower outer mold that has a skin material wrapping member. By lowering the upper mold consisting of an upper inner mold that can be raised and lowered and an upper outer mold having a cutter, the skin material is crimped onto the surface of the plastic base material and the skin material is cut into a predetermined shape. By lowering the upper and lower inner molds, the peripheral edge of the skin material is raised, and by protruding the skin material winding member, the peripheral edge of the skin material is rolled into the back surface of the plastic base material, and by raising the upper and lower inner molds. The peripheral edge of the skin material is crimped onto the back side of the plastic base material.

A fourth aspect of the present invention is to form a lower mold by vertically fitting a lower inner mold into a frame-shaped lower outer mold having a skin material wrapping member that can protrude inward from the inner circumferential surface, A frame-shaped upper outer mold is provided directly above the lower mold so that it can be raised and lowered, and a cutter that can slide on the outer peripheral surface of the lower outer mold when the upper outer mold is lowered is attached to the outer peripheral surface of the outer mold. The upper inner mold is fit into the upper outer mold so as to be movable up and down to form the upper mold.

[Function] In both the first and second aspects of the present invention, the upper mold is lowered to press the skin material onto the surface of the plastic base material, cut the skin material into a predetermined shape, and then open the upper and lower inner molds. Lower it to raise the outer edge of the skin material,
Gas is injected from the gas pipe to wrap the peripheral edge of the skin material onto the back surface of the plastic base material, and the upper and lower inner molds are raised to press the peripheral edge of the skin material onto the back surface of the plastic base material.

In both the third and fourth aspects of the present invention, the upper mold is lowered to press the skin material onto the surface of the plastic base material, and the skin material is cut into a predetermined shape, and the upper and lower inner molds are lowered to form the skin material. Raise the peripheral edge of the material,
The skin material winding member is made to protrude inward from the inner peripheral surface of the lower outer mold to wrap the peripheral edge of the skin material onto the back surface of the plastic base material, and the upper and lower inner molds are raised to roll the peripheral edge of the skin material onto the back surface of the plastic base material. Crimp.

Therefore, it becomes possible to automatically and continuously apply the skin material up to the finishing process.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

1 to 3A to 3F show a first embodiment of the present invention, in which a frame-shaped lower outer mold 2 having a notch 1 extending in the circumferential direction at the upper part of the inner peripheral surface is provided with an external A gas pipe line 3 penetrating through the upper surface of the outer mold 2 and the inner circumferential surface of the notch 1 is provided, and a lower inner mold 4 is fit into the lower outer mold 2 so as to be movable up and down, thereby forming a lower mold 5. do.

The gas pipe line 3 is a pressure source 6 provided outside the lower mold 5.
The upper surface of the lower inner mold 4 is formed into a shape that can be fitted to a base material 7 formed into a predetermined shape.

Further, the width of the gap formed between the lower outer mold 2 and the lower inner mold 4 by the notch 1 is approximately equal to or slightly equal to the thickness of the skin material 8 fixed to the base material 7. It's getting wider.

A frame-shaped upper outer mold 10 having a notch 9 extending in the circumferential direction at the lower part of the inner peripheral surface is provided directly above the lower mold 5 so as to be movable up and down, and a cutter 11 is provided on the outer peripheral surface of the upper outer mold 10. Attachment, the upper inner mold 13 having the gas pipe line 12 is fit into the upper outer mold 10 so as to be movable up and down, thereby forming the upper mold 4.

The cutter 11 can slide on the outer peripheral surface of the lower outer mold 2 when the upper mold 14 is lowered, and can shield a space 15 formed between the lower mold 5 and the upper mold 14 from the outside. installed on.

The gas pipe line 12 can communicate the space 15 with the outside when the upper mold 14 is lowered to a predetermined position and only the upper inner mold 13 is lowered as the lower inner mold 4 is lowered. It is set up like this.

In the figure, 16 is a plastic product, 17 is an adsorption device, and 18a and 18b are gas jet ports.

Next, the operation of the present invention will be explained.

As shown in FIG. 3A, the skin material 8 whose back surface is coated with adhesive is introduced onto the lower mold 5 with the adhesive-coated surface facing upward, using a skin material introducing device (not shown). , the skin material 8 is transferred to the lower inner mold 4 by a suction device 17 provided in the lower inner mold 4.
Set it according to the top surface shape.

At this time, the lower inner mold 4 is heated to a predetermined temperature by a heating device (not shown) so that the skin material 8 can easily adapt to the upper surface shape of the lower inner mold 4.

Once the skin material 8 is set in the lower inner mold 4, the base material 7 formed into a predetermined shape is transferred onto the skin material 8 set in the lower inner mold 4 by a conveying device (not shown). Then, set it so that it fits into the lower inner mold 4.

Once the base material 7 is set on the skin material 8, as shown in FIG. .

At this time, the cutter 11 cuts off the skin material 8 protruding from the outer periphery of the lower mold 5, molds the skin material 8 into a predetermined shape, and forms the skin material 8 between the lower mold 5 and the upper mold 14. Space 15 is shielded from the outside.

Once the skin material 8 has been molded into a predetermined shape, as shown in FIG.
The peripheral edge of the skin material 8 is raised along the surface of the notch 1 of the lower outer mold 2, and the space 15 is communicated with the outside via the gas pipe 12, and the pressure source 6 is heated via the gas pipe 3. Pressure gas is supplied to the space 15.

The peripheral edge of the raised skin material 8 is the gas injection port 18
When the back surface of the base material 7 begins to be engulfed by the pressure gas injected from a and 18b, as shown in FIG. Raise it to the specified position while keeping it pressed down.

At this time, a gap formed between the notch 1, the lower outer mold 2, and the lower inner mold 4 is separated from the space 15 by the skin material 8, and the gas injection port 18a
Since pressure gas no longer flows into the space 15,
From the gas outlet 18b to the space 15 and the gas pipe line 12
The flow rate of the pressurized gas flowing to the outside increases, a negative pressure is generated between the peripheral edge of the skin material 8 and the back surface of the base material 7, and the peripheral edge of the skin material 8 is rolled into the back surface of the base material 7.

Once the peripheral edge of the skin material 8 has been wrapped around the back surface of the base material 7, as shown in FIG. The peripheral edge of the skin material 8 is connected to the base material 7 by the notch 9.
Crimp on the back side.

After the skin material 8 is crimped onto the base material 7 and the plastic product 16 is formed, the upper mold 14 is raised as shown in FIG. It is carried out from above the lower mold 5.

By repeating the steps described above, plastic products 16 are automatically and continuously produced.

4 and 5A to 5F show a second embodiment of the present invention, and the same components as those of the first embodiment shown in FIGS. 1 to 3A to F are given the same reference numerals. I am using it.

A lower mold 5 is formed by fitting a lower inner mold 4 into a frame-shaped lower outer mold 2 having a required number of skin material winding members 19 that can protrude from the inner circumferential surface so as to be movable up and down.

The skin material winding member 19 is slidably inserted into a through hole 20 opened horizontally in the upper part of the lower outer mold 2, and is connected to a telescopic cylinder 21 via a link 22.

A frame-shaped upper outer mold 10 is provided directly above the lower mold 5 so as to be movable up and down, and the outer peripheral surface of the lower outer mold 2 can be slid on the outer peripheral surface of the upper outer mold 10 when the upper outer mold 10 is lowered. The cutter 11 is attached, and the upper inner mold 13 is fit into the upper outer mold 10 so as to be movable up and down to form an upper mold 14.

Next, the operation of the second embodiment will be explained.

As shown in FIG. 5A, the skin material 8 whose back surface is coated with adhesive in the same manner as in the first embodiment is introduced onto the lower mold 5 with the adhesive coated surface facing upward, and the skin material 8 is The material 8 is set so as to follow the upper surface shape of the lower inner mold 4, and the base material 7 is further set on the skin material 8 so as to fit with the lower inner mold 4.

Once the base material is set on the skin material 8, the fifth
As shown in FIG. 11 to form the skin material 8 into a predetermined shape.

Once the skin material 8 is molded into a predetermined shape, as shown in FIG. The peripheral edge of the skin material 8 is raised along the inner peripheral surface of the skin material 8.

Next, the cylinder 21 is extended and the skin material winding member 19 is inserted through the link 22 as shown in FIG. 5D.
is made to protrude to the inside of the inner circumferential surface of the lower outer mold 2 and the peripheral edge of the skin material 8 is rolled up onto the back surface of the base material 7. When the winding of the peripheral edge of the skin material 8 is completed, the cylinder 21 is contracted and the link 22 The skin material winding member 19 is retracted from the inner circumferential surface of the lower outer mold 2 through The lower surface of the upper outer mold 10 is brought into contact with the peripheral edge of the skin material 8 by pressing down, thereby pressing the peripheral edge of the skin material 8 onto the back surface of the base material 7.

After the skin material 8 is crimped onto the base material 7 and the plastic product 16 is formed, the upper mold 14 is raised as shown in FIG. It is carried out from above the lower mold 5.

6 and 7 show a third embodiment of the present invention, and the same components as those in the first and second embodiments shown in FIGS. 1 to 5 A to F are designated by the same reference numerals. I am using it.

Skin material wrapping member 1 used in the second embodiment
9, a required number of skin material winding members 24 are provided on the upper side of the inner circumferential surface of the lower outer mold 2 and are pivotally supported to be tiltable inside the lower outer mold 2 by means of pins 23.
The skin material winding member 24 and the lower surface of the lower inner mold 4 are connected via a flexible rod 25.

In the third example, the skin material 8 was crimped onto the surface of the base material 7 in the same manner as in the first and second examples, and the lower inner mold 4 and the upper inner mold 13 were pressed down on the base material 7. lower it down.

When the lower inner mold 4 descends, the skin material winding member 24 tilts inward from the inner peripheral surface of the lower inner mold 4 via the flexible rod 25, and winds the peripheral portion of the skin material 8 onto the back surface of the base material 7. .

When the lower inner mold 4 is raised to a predetermined position, the skin material winding member 24 is moved to the flexible rod 25.
is drawn into the lower outer mold 2 through the
The peripheral edge of the skin material 8 is pressed onto the back surface of the base material 7 to form a plastic product in the same manner as in the first and second embodiments.

Note that the present invention is not limited to the above-described embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

[Effects of the Invention] As described above, according to the skin material pasting method and device of the present invention, the work of adhering the skin material to the plastic base material can be performed automatically and continuously up to the finishing process. , production efficiency is improved,
Various excellent effects can be achieved, such as uniform product quality and no need for workers, resulting in labor savings and work safety.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention;
2 is a view taken along the - arrow in FIG. 1; FIGS. 3A to 3E are explanatory diagrams showing the operation of FIG. 1; FIG. A to F are explanatory views showing the operation of FIG. 4, FIG. 6 is a sectional view showing the third embodiment of the present invention, and FIG. 7 is an explanatory view showing the operation of FIG. 6. In the figure, 1 is a notch, 2 is a lower outer mold, 3 is an air pipe, 4 is a lower inner mold, 5 is a lower mold, 7 is a base material, 8 is a skin material, and 9 is a notch , 10 is an upper outer mold, 11 is a cutter, 12 is an air pipe, 13 is an upper inner mold, 14 is an upper mold, and 19 and 24 are skin material wrapping members.

Claims (1)

[Scope of Claims] 1. A plastic base material overlaid on a skin material coated with an adhesive is set on a lower mold consisting of a lower inner mold that can be raised and lowered and a lower outer mold having a gas pipe line, By lowering the upper mold, which consists of an upper inner mold that can be raised and lowered and an upper outer mold that has a cutter, the skin material is crimped onto the surface of the plastic base material, and the skin material is cut into a predetermined shape. The peripheral edge of the skin material is raised by lowering the mold, the peripheral edge of the skin material is rolled up onto the back surface of the plastic base material by injecting gas from the gas pipe, and the back surface of the plastic base material is raised by raising the upper and lower inner molds. A skin material pasting method characterized by crimping the peripheral edge of the skin material. 2. A frame-shaped lower outer mold having a notch extending in the circumferential direction at the upper part of the inner peripheral surface is provided with a gas pipe passage penetrating from the outside to the upper surface of the lower outer mold and the inner peripheral surface of the notch, and A lower inner mold is fit into the mold so as to be movable up and down to form a lower mold, and a frame-shaped upper outer mold having a notch extending in the circumferential direction at the lower part of the inner peripheral surface is placed directly above the lower mold. an upper inner mold that is movable up and down, has a cutter attached to the outer peripheral surface of the upper outer mold that can slide on the outer peripheral surface of the lower outer mold when the upper outer mold is lowered, and has a gas pipe in the upper outer mold; A skin material pasting device characterized in that an upper mold is formed by inserting a mold so that it can be moved up and down. 3. A plastic base material overlaid on a skin material coated with adhesive is set on a lower mold consisting of a lower inner mold that can be raised and lowered and a lower outer mold that has a skin material wrapping member, and an upper mold that can be raised and lowered is set. By lowering the upper mold consisting of an inner mold and an upper outer mold having a cutter, the skin material is crimped onto the surface of the plastic base material and the skin material is cut into a predetermined shape, and the upper and lower inner molds are lowered. By this, the peripheral edge of the skin material is raised up, the peripheral edge of the skin material is rolled up onto the back surface of the plastic base material by protruding the skin material winding member, and the peripheral edge of the skin material is rolled onto the back surface of the plastic base material by raising the upper and lower inner molds. A skin material pasting method characterized by crimping the parts. 4 A lower inner mold is vertically fit into a frame-shaped lower outer mold having a skin material wrapping member that can protrude inward from the inner peripheral surface to form a lower mold, and a frame is placed directly above the lower mold. an upper outer mold having a shape that can be raised and lowered, and a cutter that can slide on the outer peripheral surface of the lower outer mold when the upper outer mold is lowered is attached to the outer peripheral surface of the outer mold,
A skin material pasting device characterized in that an upper inner mold is fit into the upper outer mold so as to be movable up and down.