JPH1120016A - End processing method of laminated molding and end processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an end processing method and an end processing device enabling high precision rolling processing of a folded end, in the case that a vertical wall is provided on the circumference of a laminated molding, or three-dimensional curved surface, or a step is set. SOLUTION: An end processing device 50 is provided with a downward flange 55 on the end of a pressure bar 55, which can move forward and backward to the side of a receiving jig 40, and the pressure bar 55 is configured to move vertically. A plate-shaped elastic body 57 is arranged between the end of the pressure bar 55 and a fixed table 51. By forward motion of the pressure bar 55, an end for folding 23 of skin material 22 is bent by the elastic body 57 with appropriate cushioning from a starting point of a base 23a for bending and holding. And by moving the pressure bar 55 down, the elastic body 57 is drawn by the downward flange 56 so that the end for folding 23 of the skin material 22 is rolled with high precision through the elastic body 57, even in a vertical wall 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal processing method and a terminal processing apparatus for a laminated molded article in which a skin material is integrally attached to a core material surface, and in particular, a vertical wall portion is provided at a peripheral portion of the laminated molded article. Even when formed, or when the peripheral edge of the laminated molded body is set to a three-dimensional shape, the terminal processing method and the terminal processing of the laminated molded body capable of accurately winding the folded terminal of the skin material. Related to the device.

[0002]

2. Description of the Related Art For example, a typical automotive interior part is an automobile door trim. FIGS. 10 and 11 show a front view and a cross-sectional view of a main part of an automobile door trim. An automobile door trim 1 is configured by attaching a skin material 3 to a surface of a core material 2 formed in a required shape. And core 2
The outer shape of the skin material 3 is trimmed to be larger than the outer shape of the core material 2, and the periphery of the skin material 3 is folded back around the core material 2 as a folded terminal 3 a, and the adhesive is stopped, clipped, fixed by ultrasonic welding, and heat-welded. Terminal processing such as fixing is performed.

Referring to FIG. 12, a method of processing the folded end 3a of the skin material 3 will be described. A molded product obtained by integrally molding the core material 2 and the skin material 3 is set on a receiving jig 4, and at this time, the skin material is set. 3 is set with the folded terminal 3a standing up, and the inner surface of the folded terminal 3a of the skin material 3 is coated with an adhesive or heated and melted by a heater device.

A crimping bar (made of a metal material or a hard resin such as nylon) 6 of a terminal processing device 5 installed on the outer periphery of the receiving jig 4 advances toward the receiving jig 4. Folding terminal 3a of skin material 3 by crimping bar 6
Is wound around the back surface of the core material 2 and adhered to perform the terminal treatment of the skin material 3.

As a recent tendency, in order to impart a three-dimensional effect to the door trim 1 and enhance the design, as shown in FIG. 13, a vertical wall portion 7 is often formed around the periphery of the door trim 1 in many cases. In such a case, it is necessary to perform the winding process by following the folded terminal 3a of the skin material 3 on the inner surface of the vertical wall portion 7, and for this purpose, it is necessary to lower the crimping bar 6 to operate. It is a fact that a troublesome operation of changing the shape of the crimping bar 6 each time is required depending on the inclination angle.

[0006]

As described above, according to the conventional method of treating a laminated body represented by a door trim 1 for an automobile, a crimping bar made of a metal material or a hard resin material (nylon or the like) is used. Since the folded-back terminal 3a of the skin material 3 is wound in by the sliding operation of No. 6, the skin may vary depending on, for example, a variation in molding the laminated molded body and a variation in setting the molded body in the receiving jig 4. It has been pointed out that a difference occurs in the tension force when the folded terminal 3a of the material is folded, so that a uniform adhesive strength cannot be obtained, a bonding failure occurs, or defects such as wrinkles and cuts occur.

Further, in the case where the vertical wall portion 7 is provided at the peripheral portion of the door trim 1, after sliding the crimping bar 6, the lowering operation is performed so that the folded terminal 3a is wound around the inner surface of the vertical wall portion 7. However, it is difficult to form the surface shape of the crimping bar 6 and the inner surface shape of the vertical wall portion on the same surface.
A moderate tension is applied to the folded terminal 3a of the skin material 3,
It was pointed out that it was not possible to perform accurate winding processing.

Further, even when the shape of the base of the folded end 3a of the skin material 3 (the end of the peripheral edge of the molded body) in the laminated molded body is set to a three-dimensional shape, the crimping bar also corresponds to the shape. 6 is extremely difficult to process, and there is an urgent need to accurately process the winding terminal 3a of the skin material 3 by winding.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and in a laminated molded product in which a skin material is adhered to a core material surface, a laminated molded product in which a folded terminal of the skin material is wound. In the terminal processing method and the terminal processing apparatus, good adhesive strength can be secured even when the peripheral end of the laminated molded article has irregularities or when the molded article has dimensional variation and set variation, and the base of the folded terminal can be secured. In addition to being able to perform accurate terminal processing without occurrence of wrinkles or cuts, when a vertical wall portion is set at the peripheral edge of the laminated molded article, or when the peripheral edge terminal is changed to a three-dimensional shape It is another object of the present invention to provide a terminal processing method and a terminal processing apparatus for a laminated molded body capable of accurately winding and winding a folded terminal of a skin material.

[0010]

In order to achieve the above-mentioned object, the present invention provides a laminated molded product comprising a core material formed into a required shape and a skin material attached to the surface of the core material. In the terminal processing method of the laminated molded body in which the folded end of the peripheral portion of the skin material trimmed to be larger than the outer shape of the laminated molded body is folded back and adhered to the back surface of the core material, the skin material of the laminated molded body is directed downward on the receiving jig. Using a terminal processing device that is installed along the outer periphery of the receiving jig and along the side where the skin material needs to be wrapped, the crimping bar is advanced to the receiving jig side. The peripheral end of the laminated molded body is brought into contact with the approximate center of the elastic body supporting the upper and lower edges, and the folded end of the skin material is bent around the contact part by the elastic body in a surface contact state. Folding terminal bending process, and provided at the tip edge of the crimping bar The orientation flange penetrates into the inner surface of the core material by the downward movement of the crimping bar, and the elastic body is pulled in by the downward flange, and the folded end of the skin material is pressed and fixed to the inner surface of the core material with an appropriate cushion pressure. And a step of pressing the folded terminal.

Here, the laminated molded body is a laminated molded body in which a skin material is adhered to the surface of a core material, and the skin material is trimmed to be larger than the outer periphery of the core material. Side trim, door trim,
Applicable to building materials and interior materials in addition to automotive interior parts such as rear corner trims and various pillar trims.

In the case of using a mold press molding method as a molding method and a molding material of the laminated molded article, a resin obtained by mixing a filler such as talc or charcoal with polypropylene (hereinafter referred to as PP) resin, if desired. Using the core material as the core material, mold press molding is performed, and a skin material made of a laminated sheet material in which a polyethylene foam is lined on the back surface of the PVC sheet is set in the mold press mold in advance. What is necessary is just to mold-mold the core material and the skin material by injecting and filling. In addition, when using cold press molding, the PP resin mixed with wood powder filler and the like are mixed with a T-die extruder. After extruding into a sheet and using it as a core material, the sheet material is preheated and softened by a heater, and then the base material such as a knitted cloth is used. Laminated on the back side the PVC
The core material and the skin material may be integrally press-molded by preheating and softening the skin material made of the sheet, setting each material in a cold press mold, and clamping the press mold. When a wood-based mat is used as a core, a wood-based fiber mat impregnated with a phenol resin or the like is formed into a required shape by hot press molding to obtain a core, and a polyethylene foam is formed on the surface side of the core. A laminated sheet is obtained by integrally bonding a PVC sheet backed by the above method by vacuum forming via an adhesive.

As described above, as a laminated molded article to which the terminal treatment method according to the present invention is applied, not only applications but also molding methods and molding materials are not particularly limited.

Next, as a setting step in the method of the present invention, the laminated molded body is placed on the receiving jig with the skin material facing down, and the peripheral portion of the receiving jig is inclined at a portion where the skin material needs to be involved. It is set in a state where the folded end portion of the skin material stands upright.

In order to wind and fix the folded end of the skin material, adhesive fixing, ultrasonic welding fixing, heat welding and the like can be considered. When an adhesive is used, the laminated molded body is mounted on a receiving jig. After setting, it is sufficient to coat the adhesive, and to perform heat welding, operate the lifting cylinder, raise the receiving jig, bring the inner surface of the folded back surface of the skin material close to the heater device, and bring it to a predetermined temperature. It may be heated and melted, and P which is lined with polyethylene foam as a skin material
When a VC sheet is used, it may be heated to a predetermined temperature at which the polyethylene foam is melted.

Next, in the method of the present invention, the step of processing the folded terminal of the skin material includes the step of setting the laminated molded body on the receiving jig described above, the step of bending the folded terminal of the skin material,
And a step of pressing the folded terminal.

That is, the bending step of the folded back surface of the skin material is performed by removing the upper and lower edges of the crimping bar provided with a downward flange at the front end edge and fixing the lower end edge of the crimping bar to the fixed table. And a plate-shaped elastic body in a free state.

First, when the crimping bar advances to the receiving jig side, the peripheral edge terminal of the laminated body (the base of the folded terminal) comes into contact with the center of the elastic body, and the skin material is folded based on this base. The terminal is wrapped around the back side of the core material, but the elastic body presses the base with an appropriate cushion pressure, and the elastic body above the base is crimped around the base by the advancement of the crimping bar. The bending bar is drawn to the receiving jig side, whereby the folded end of the skin material is bent in a state of surface contact with the elastic body.

Then, the movement of the crimping bar is stopped,
Thereafter, the crimping bar performs a descending operation, and the downward flange provided at the tip edge of the crimping bar enters along the inner surface of the core material, and the elastic body is pulled downward by the downward flange, thereby reducing the cushion pressure of the elastic body. Thereby, the folded terminal of the skin material can be pressed and fixed to the inner surface of the core material.

Further, the present invention provides a laminated molded article formed by attaching a skin material to a surface of a core material formed into a required shape, and trimming the outer shape of the skin material to be larger than the outer shape of the core material. Then, in a terminal processing device for a laminated molded body in which the folded terminal of the skin material is folded back and adhered to the back surface side of the core material, the terminal processing device winds the skin material around a receiving jig for setting the laminated molded body. In addition to being provided along the side that needs to be embedded, the terminal processing device is capable of moving forward and backward and up and down, and has a crimping bar provided with a downward flange at the leading edge, and a leading edge of the crimping bar, The upper and lower edges are fixed to the leading edge of the fixed table, and the center portion is provided with a plate-like elastic body in a free state. The base of the folded back end of the skin material is moved by the forward movement of the crimping bar toward the receiving jig side. Bullet by elastic body And press the bar for crimping down to enter the downward flange along the inner surface of the core material. The body is retracted, and the folded terminal is pressed and fixed to the inner surface of the core material by the elastic force of the elastic body.

Here, the terminal processing device is set along the outer periphery of the receiving jig on the side where the skin material is required to be wound. A fixed table fixed in place and a slide plate connected to a slide cylinder mounted on the fixed table are slidably mounted on the fixed table via a guide mechanism. Forward and backward.

A crimping cylinder that can move up and down is installed on the slide plate, and a crimping bar is attached to a tip of a piston rod of the crimping cylinder. Is provided.

The plate-like elastic body has its upper edge fixed to the upper surface of the tip edge of the crimping bar, and its lower edge fixed to the tip edge of the fixing table. The upper and lower edges are fixed. The central part is supported in a free state. In order to smoothly move the crimping bar up and down, a guide boss is formed on the crimping bar so as to protrude downward, and a guide post for receiving the guide boss is formed on a slide table. In addition, although the sliding cylinder and the crimping cylinder are used for the reciprocating operation and the vertical movement of the crimping bar, respectively, they may be replaced by a cam mechanism or the like.

Further, the shape of both the crimping bar and the downward flange formed at the tip of the crimping bar is preferably set corresponding to the peripheral shape of the laminated molded product, and the peripheral portion is changed to a three-dimensional shape. In this case, the crimping bar and the downward flange may be formed in a three-dimensional shape. As the plate-like elastic body, a silicone foam having a thickness of about 10 mm and excellent in heat resistance and adhesive release properties is preferable,
In addition, it is also possible to use an elastic body such as a urethane foam or a rubber foam.

Therefore, if the laminated compact is set on a receiving jig and the crimping bar of the terminal processing device is moved forward,
A substantially central portion of the elastic body comes into contact with the base of the folded end of the skin material, and the folded end of the skin material is pressed and bent by the elastic body with the folded end of the skin material in surface contact with the elastic body.

At this time, even if there is variation in the set position of the laminated molded product, dimensional variation of the laminated molded product, or irregularities in the peripheral edge terminal of the laminated molded product, these variations can be absorbed by the cushioning properties of the elastic body. Therefore, the folded terminal can be bent by applying an appropriate tension by the elastic body, and wrinkles and cuts do not occur.

Further, if the crimping bar is lowered and the downward flange is advanced along the inner surface of the core material, the elastic body is retracted by the downward flange, and, for example, a tight inclination angle is set to the vertical wall portion. In this case as well, the folded end of the skin material can be pressed against the inner surface of the core material by the cushioning property of the elastic body, so that poor adhesion or the like does not occur.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an automobile door trim will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a front view showing an automobile door trim subjected to a terminal treatment by applying the method of the present invention, FIG. 2 is a cross-sectional view showing a configuration of a peripheral portion of the automobile door trim, and FIG. FIG. 4 is a plan view showing an arrangement of a terminal processing apparatus to be applied, FIG. 4 is a cross-sectional view showing a configuration of the terminal processing apparatus used in the method of the present invention, and FIGS. 5 to 9 are cross-sectional views showing respective steps of the terminal processing method according to the present invention. FIG.

Referring to FIGS. 1 and 2, the schematic structure of an automobile door trim 10 manufactured by applying the method of the present invention will be briefly described. The automobile door trim 10 is composed of a vertically divided body of a trim upper 20 and a trim lower 30. The trim upper 20 is formed by attaching a skin material 22 to the surface of a core material 21.
0 upper edge 20a and both side edges 20b, 20c
2 is wound around the back side of the core material 21, and a vertical wall 24
Are formed to give the trim upper 20 a three-dimensional effect.

More specifically, a PP resin mixed with talc is used as the core material 21, a PVC sheet lined with polyethylene foam is used as the skin material 22, and the skin material is placed in a mold press molding die (not shown). 22
Is set in advance, and the core material 21 and the skin material 22 are integrally formed by injection-filling a PP resin mixed with talc into a mold. The trim lower 30 is made of an injection-molded body of PP resin, and includes a trim upper 20 and a trim lower 3.
Although 0 is not shown, after inserting the ultrasonic peg provided on the back surface of the trim lower 30 into the mounting hole provided in the trim upper 20, the tip of the ultrasonic peg is subjected to ultrasonic welding and caulking, thereby forming the trim upper 20 with the trim upper 20. The trim lower 30 is joined and fixed.

The present invention relates to a trim upper 20
It is a feature to provide a terminal processing method and a terminal processing device for a laminated molded body capable of accurately processing the folded terminal 23 of the skin material 22 of the laminated molded body composed of the core material 21 and the skin material 22 as described above. And Before describing the terminal processing method, the configuration of the terminal processing device used therein will be described with reference to FIG. 3 and FIG. 4, in which the terminal processing apparatus is applied to the trim upper 20 of the door trim 10. In order to wrap the folded terminals 23 of the skin material 22 around the edges 20b and 20c, respectively,
4 around the receiving jig 40 for setting the trim upper 20
The terminal processing device 5 is connected to three sides 40a, 40b, and 40c of the sides.
0 is arranged.

Then, as shown in FIG. 4, the receiving jig 40 for setting the trim upper 20 is provided with the trim upper 2.
It has a mold surface 40a conforming to the product surface shape of No. 0 and is connected to a lifting / lowering cylinder 41 so as to be movable up and down a predetermined stroke. This lifting cylinder 41
As a result, the receiving jig 40 moves up and down by a predetermined stroke, and when the receiving jig 40 reaches the uppermost position, the heater device 42 heats and melts the back surface of the folded end portion 23 of the skin material 22.

Then, three sides 40a around the receiving jig 40,
The configuration of the terminal processing device 50 arranged on one side 40b of the terminals 40b and 40c will be described.
Reference numeral 0 denotes a fixed table 51 installed at a position separated from the outer periphery of the receiving jig 40 by a predetermined distance.
A slide table 52 is provided on the upper surface of the fixed table 51 in a direction indicated by an arrow in the figure, that is, in a direction in which the slide table 52 moves forward and backward with respect to the receiving jig 40. By fixing the piston rod 53a of the advance / retreat cylinder 53 fixed to the lower surface to the slide table 52 via the connecting member 53b, the slide table 52 moves forward and backward in the direction of the predetermined stroke arrow, that is, toward the jig 40. Do.

A cylinder 54 for crimping is fixed on the upper surface of the slide table 52, and a bar 55 for crimping is fixed to a piston rod 54a of the cylinder 54 for crimping. A downward flange 56 is provided at the edge on the 40 side. The crimping bar 55 can move up and down by a predetermined stroke by the up and down operation of the crimping cylinder 54. Further, a plate-like elastic body 57 (thickness: 10 mm) made of silicone foam is provided on the upper surface of the leading edge of the crimping bar 55 and the leading edge of the fixed table 51.
Upper and lower edges are fixed. In the figure, 5
Reference numeral 8 denotes a guide boss that supports the crimping bar 55 when the crimping cylinder 54 moves up and down. The guide boss 58 is fitted in a guide post 59 protruding from the slide table 52. .

The terminal processing device 50 according to the present invention is configured as described above, and the orientation flange 5 formed on the distal end edge by the operation of the advance / retreat cylinder 53 and the press-fitting cylinder 54.
The crimping bar 55 provided with 6 can move forward and backward with respect to the receiving jig 40 and can move up and down.

Next, a terminal processing method of the folded terminal 23 of the skin material 22 of the trim upper 20 will be described with reference to FIGS. 5 and 6 show a step of welding the folded terminal 23 of the skin material 22, and FIGS. 7 to 9 show a terminal processing step, respectively. First, as shown in FIG. 5, the trim upper 20 is set at an appropriate position on the receiving jig 40 with the skin material 22 of the trim upper 20 facing downward.
After the trim upper 20 is set, the holding member 43 is lowered to place the trim upper 20 on the receiving jig 40.
I support. At this time, the periphery of the mold surface of the receiving jig 40 is formed to be inclined, and the folded terminal 23 of the skin material 22 is set to be in the upright state. Thereafter, as shown in FIG. 6, the lifting / lowering cylinder 41 is operated to raise the predetermined stroke jig 40, and the skin material 2 of the trim upper 20 is moved.
The inner surface of the second folded terminal 23 is heated and melted by the heater device 42.

Next, the lifting / lowering cylinder 41 operates to lower the receiving jig 40 to the base position shown in FIG. 5, and first, as shown in FIG. Then, the slide table 52 is advanced toward the jig 40. Accordingly, in response to the forward movement of the slide table 52, the crimping bar 55 moves toward the receiving jig 40, so that the crimping bar 55 is attached in a bridging manner between the leading edge of the crimping bar 55 and the leading edge of the fixed table 51. A substantially middle portion of the plate-like elastic body 57 presses the peripheral edge terminal of the trim upper 20, that is, the base 23a of the folded terminal 23 of the skin material 22, with an appropriate cushion pressure, and furthermore, the crimping bar 55 moves forward. As a result, the upper portion of the elastic body 57 is pulled by the crimping bar 55 based on the base portion 23a.
As shown in FIG. 7, the folding terminal 23 of the skin material 22 is bent.

At this time, the base 23a of the folded terminal 23 of the skin material 22 is pressed by an elastic body 57 with a moderate or cushion pressure, and the folded terminal 23 of the elastic body 57 and the skin material 22 is maintained in a surface contact state. Since the bending operation of the folding member 23 is performed, an appropriate tension is applied to the folding terminal 23 of the skin material 22.
The unevenness can be absorbed by the elasticity of the elastic body 57 even when unevenness is formed at the peripheral edge terminal of the zero, or even when the trim upper 20 on the receiving jig 40 is slightly misaligned. In addition, a beautiful appearance can be secured without wrinkles, cuts, or the like occurring at the peripheral edge terminals of the trim upper 20.

Thereafter, the crimping cylinder 54 performs a contracting operation, and as shown in FIG. 9, a downward flange 56 provided at the distal end edge of the crimping bar 55 enters along the inner surface of the core material 21 and moves therewith. The downward flange 56 cuts into the elastic body 57 which is not provided, and the elastic body 57 is pulled down, so that the folded end 23 of the skin material 22 is formed along the inner surface of the vertical wall portion 24 of the trim upper 20 by the elastic body 57 so as to have good cushioning properties. , The folded end 23 of the skin material 22 in the molten state is fixed to the back surface side of the core material 21.

When the terminal processing is completed, the crimping bar 55 is raised by the extension operation of the crimping cylinder 54, and the crimping bar 55 is further separated from the receiving jig 40 by the extension operation of the advance / retreat cylinder 52. And the crimping bar 55 returns to the base position shown in FIG. 4 to complete the terminal processing.

As described above, according to the method of the present invention, when the base 23a of the folded end 23 of the skin material 22 is pressed by the elastic body 57 with an appropriate cushion pressure, the folded end 23 is pressed.
Is bent by the elastic body 57, and thereafter, the downward flange 56 of the crimping bar 55 enters along the inner surface of the core material 21, and the elastic body 57 is simultaneously pulled down, so that the skin 2
Since the folded terminal 23 of FIG. 2 can be accurately pressed and fixed to the back side of the core material 21, the elastic member 57 is used for the treatment of the skin material 22 as compared with the conventional method using a crimping bar made of a hard material. Since the contact is carried out, unevenness at the peripheral edge of the trim upper 20, or set variation and dimensional variation of the trim upper 20 can be effectively absorbed by the elastic body 57, and there is no poor adhesion and no wrinkles. Good terminal processing without disconnection, etc. can be performed.

Further, even when the vertical wall portion 24 is set on the peripheral edge portion of the trim upper portion 20, the downward flange 56 provided on the distal end edge of the crimping bar 55 penetrates deeply into the inner surface side of the vertical wall portion 24 and faces downward. Since the pressing force from the flange 56 is applied to the folded end 23 of the skin material 22 via the elastic body 57 to perform the winding process, the skin material 22 is also provided on the inner surface of the vertical wall portion 24.
Can be accurately bonded and fixed.

The shape of the crimping bar 55 and the downward flange 56 is such that, for example, when the shape of the peripheral end of the trim upper 50 is formed into a three-dimensional shape, the crimping bar 55 and the downward flange 56 correspond to the shape. If the shape is changed, the folded terminal 23 of the skin material 22 can be accurately involved even in the peripheral edge terminal having a complicated shape.
The elastic body 57 is a plate having a thickness of 10 mm, and it is preferable to use a silicone foam because of its good oil resistance and good peeling properties of the adhesive.

In the embodiment of the method of the present invention described above, the inner surface of the folded terminal 23 of the skin material 22 is heated and melted by the heater device 42 to perform the terminal treatment of the folded terminal 23 of the skin material 22. An adhesive may be applied, and the trim upper 20 of the door trim 10 has been described as an example of a laminated molded body. However, the laminated molded body composed of a core material and a skin material, Can be applied to various uses such as rear corner trims other than door trims, interior parts for automobiles such as various pillar garnishes, etc., as well as building materials and interior parts.

[0046]

As described above, the terminal processing method and terminal processing apparatus for a laminated molded article according to the present invention have the following special effects.

(1) According to the method of the present invention described in claim 1 and the apparatus of the present invention described in claims 3 and 4, as a terminal processing device, a crimping device capable of vertically moving and retreating and having a downward flange at a leading edge. A bar and a plate-like elastic body that applies an elastic force to the folded-back terminal of the skin material following the operation of the crimping bar, and the skin material is moved forward and downward to the receiving jig side of the crimping bar. When winding the folded terminal on the back side of the core material, even if there are irregularities on the peripheral edge terminal of the laminated molded product,
In addition, even if there is a variation in setting when the laminated molded body is set on the receiving jig or a variation in the dimensional accuracy of the laminated molded body, these variations can be effectively absorbed by the cushioning property of the elastic body. The folded terminal can be wrapped around the back surface of the core material with high accuracy, and there is an effect that accurate terminal processing can be performed without occurrence of poor adhesion, wrinkles, or cuts.

(2) According to the method of the present invention described in claim 1 and the device of the present invention described in claims 3 and 4, as a terminal processing device, a crimping device capable of vertically moving and retreating with a downward flange at a leading edge. A bar and a plate-like elastic body that applies an elastic force to the folded-back terminal of the skin material following the operation of the crimping bar, and the skin material is moved forward and downward to the receiving jig side of the crimping bar. Since the folded terminal is wound around the back side of the core material, for example, even when a vertical wall portion is set on the peripheral portion of the laminated molded body, when the crimping bar is moved down, the crimping bar is The downward flange provided at the leading edge penetrates deeply along the inner surface of the vertical wall, and at the same time, lowers the elastic body, and adheres and fixes the folded-back terminal of the skin material accurately along the inner surface of the vertical wall by the cushioning force of the elastic body. Can be laminated Such as setting the vertical wall portion to the peripheral portion of the feature has the effect that the molding freedom can be greatly improved.

(3) According to the method of the second aspect of the present invention, after the laminated molded body set in the receiving jig is heated and melted on the inner surface of the folded back end of the skin material by the heater device, the crimping bar and the plate-like member are formed. Since the folded terminal of the skin material is wound around the inner surface of the core material by the terminal processing device equipped with an elastic body, even if the folded terminal of the skin material is in a softened state, it is supported by the elastic body. Since the wrapping process is performed, wrinkles and the like are not generated, and there is an effect that accurate terminal processing can be performed.

(4) According to the invention as set forth in claim 5,
Since the shape of the crimping bar is set so as to follow the peripheral edge shape of the laminated molded body, when the crimping bar is moved forward and downward, the core material inner surface and the crimping bar are Can be maintained at a substantially constant interval, and when the folded terminal of the skin material is elastically contacted with the elastic body, a substantially constant pressing force can be applied, so that the product shape includes a step and the peripheral edge of the molded body is tertiary. Even in the case where the original shape is set, there is an effect that a favorable skin material wrapping process can be performed.

(5) According to the invention as set forth in claim 6,
By using silicone foam as the plate-like elastic body, it has heat resistance even when it comes in contact with the heated skin material, so it does not easily deteriorate, and even if the adhesive adheres, the adhesive Are easily peeled off, and the durability of the device can be improved.

[Brief description of the drawings]

FIG. 1 is a front view of an automobile door trim manufactured by applying a terminal processing method according to the method of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an explanatory diagram showing an arrangement configuration of a terminal processing device used in the method of the present invention.

FIG. 4 is a sectional view showing an embodiment of a terminal processing device used in the method of the present invention.

FIG. 5 is a cross-sectional view showing a step of setting a laminated molded product in the method of the present invention.

FIG. 6 is a cross-sectional view illustrating a step of heating and melting a skin material terminal portion in the method of the present invention.

FIG. 7 is an explanatory view showing an advance operation of a crimping bar in a terminal processing method in the method of the present invention.

FIG. 8 is an explanatory view showing a step of bending the folded terminal portion of the skin material in the method of the present invention.

FIG. 9 is an explanatory view showing a step of pressing a folded terminal of a skin material in the method of the present invention.

FIG. 10 is a front view showing a conventional automobile door trim.

11 is a sectional view taken along line XI-XI in FIG.

FIG. 12 is an explanatory view showing a conventional terminal treatment method for a laminated molded article.

FIG. 13 is a partial cross-sectional view showing a conventional door trim provided with a vertical wall portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Automotive trim 20 Trim upper 21 Core material 22 Skin material 23 Folding terminal 23a Base 30 Trim lower 40 Receiving jig 41 Elevating cylinder 42 Heating device 43 Pressing member 50 Terminal processing device 51 Fixed table 52 Slide table 53 Reciprocating cylinder 54 Crimping Cylinder 55 Crimping bar 56 Downward flange 57 Elastic body 58 Guide boss 59 Guide post

Claims (6)

[Claims] 1. A laminated material (20) is formed by attaching a skin material (22) to the surface of a core material (21) formed into a required shape, and has a shape smaller than the outer shape of the core material (21). A terminal treatment method for a laminated molded body in which a folded end (23) of a periphery portion of a skin material (22) trimmed to a large size is folded and adhered to a back surface of a core material (21), the laminated molded body being placed on a receiving jig (40) Skin material of (20) (2
2) A terminal processing device which is installed along the outer periphery of the receiving jig (40) and along the side requiring the winding process of the skin material (22). 50), the crimping bar (55) is advanced to the receiving jig (40) side, and the peripheral edge of the laminated molded body (20) is almost at the center of the elastic body (57) supporting the upper and lower edges. The terminal is brought into contact with the skin material (22) with the contact part as the center.
The bending step of the folded terminal for bending the folded terminal (23) in a surface contact state by the elastic body (57), and the downward flange (56) provided at the leading edge of the crimping bar (55) is a crimping bar. The lowering operation of (55) intrudes into the inner surface side of the core material (21), and the elastic body (57) is drawn in by the downward flange (56), so that the skin material (22) adheres to the inner surface of the core material (21). Return terminal (23)
And a step of pressing a folded terminal for pressing and fixing with a suitable cushion pressure. 2. A jig (40) for receiving a laminated molded body (20).
Then, the receiving jig (40) is raised, and a welding step of the skin material for heating and melting the inner surface of the folded end (23) of the skin material (22) by the heater device (42) is added before the terminal processing step. 2. The method according to claim 1, wherein the terminal processing is performed. 3. A laminated material (20) is formed by attaching a skin material (22) to the surface of a core material (21) formed into a required shape, and the outer shape of the skin material (22) is adjusted to Lumber (2
Trim larger than the outer shape of 1) and make the skin material (22)
In the terminal processing apparatus for a laminated molded body, in which the folded terminal (23) is folded back and adhered to the back side of the core material (21), the terminal processing device (50) includes a receiving jig (20) for setting the laminated molded body (20). 40) around the skin material (2
The terminal processing device (50) is provided along the side where the winding process of (2) is required, and is capable of moving forward and backward and up and down, and has a downward flange (56) at the tip edge. (55), a plate-like elastic body (57) whose upper and lower edges are fixed to the leading edge of the crimping bar (55) and the leading edge of the fixed table (51), and whose central part is in a free state. The base (23a) of the folded end (23) of the skin material (22) is elastically pressed by the elastic body (57) by the forward movement of the crimping bar (55) with respect to the receiving jig (40). The folded end (23) of the skin material above the base (23a) is bent by an elastic body (57) into a surface contact state, and the crimping bar (55) is lowered to set the downward flange (56) to the center. Material (21) penetrated along the inner surface , Draw the elastic body (57), the core material (21) the terminal apparatus of the molded laminate, characterized in that presses and fixes the folded terminal (23) to the inner surface by the elastic force of the elastic body (57). 4. The terminal processing device (50) is mounted such that a slide table (52) can be advanced and retracted toward a receiving jig (40) by an advance and retreat cylinder (53) fixed to a fixed table (51). This slide table (5
A crimping cylinder (54) that can move up and down is attached to 2), and the crimping bar (5) is attached to the crimping cylinder (54).
The terminal treatment device for laminated molded articles according to claim 3, wherein (5) is attached. 5. The shape of the crimping bar (55) and the downward flange (56) is formed corresponding to the shape of the peripheral edge of the laminated molded body (20). 5. The terminal processing device for a laminated molded product according to 4. 6. The elastic body (5) of the terminal processing device (50).
7. The terminal processing apparatus for a laminated molded product according to claim 3, wherein 7) is formed of a silicone foam having a high heat resistance and a high adhesive releasability.