JP3208182B2 - Method for fixing metal member, automatic fixing device, and hot melt supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing method for fixing a metal member to a substrate by using a hot melt, and an automatic fixing device and a hot melt feeding device for a metal member directly used for carrying out the method. is there.

[0002]

2. Description of the Related Art Conventionally, as a method for attaching a small metal member to a substrate, a method using hot melt is known. In this method, for example, as shown in FIGS. 5 and 6, a U-shaped metal member a having outwardly directed flange portions a1 and a1 at both ends is converted into a base material b made of a nonmetal material such as a wood material. First, the base material b is set into the set mold c.
Set on top. Subsequently, release paper is removed from the central portion (the portion corresponding to the main body portion of the metal member a) on the surface side on which the adhesive of the hot melt d cut in advance in accordance with the size and shape of the metal member a is applied. The hot melt d is adhered to a predetermined position of the base material b. Thereafter, the metal member a is placed on the hot melt d, and the member a is pressed against the base material b by the crimping die e. Subsequently, the substrate b
The metallic member a by the high frequency induction heating device f provided in
Are heated to melt the side ends of the hot melt d sandwiched between the flanges a1 and the base material b. Then, stop the heating to remove the hot melt d
The two flange portions a1, a1 of the metal member a are
To be fixed.

[0003]

However, in the above-mentioned conventional method, there is a problem that the work of peeling the release paper from the hot melt d and attaching the hot melt d to the base material b is troublesome. Further, the portion of the hot melt d used only for this bonding occupies more than 1/3 of the entire hot melt d, and the required hot melt d increases by that much, and the cost is high. is there.

The present invention has been made in view of the above points, and a first object of the present invention is to omit the operation of peeling off the release paper and attaching the hot melt to the base material, and only to the necessary places. An object of the present invention is to provide a method for fixing a metal member, which can simplify the operation and reduce the cost by fixing the metal member to a base material using a hot melt.

It is a second object of the present invention to provide a metal member automatic fixing device and a hot melt feeding device suitable for carrying out the fixing method.

[0006]

Means for Solving the Problems In order to achieve the first object, the invention according to claim 1 is a fixing method for fixing a metal member having a flange portion to a base material by using a hot melt. A step of setting the substrate to a substrate set mold with the member fixing surface side of the substrate facing downward, and a step of setting the metal member to a member set mold located at a standby position below the substrate set mold And thereafter, a step of mounting a hot melt on the flange portion of the metal member,
Raising the member set mold from the standby position to the pressing position, and pressing the metal member held by the member set mold against the base material held by the base material set mold; Heating the flange portion of the metal member to melt the hot melt between the flange portion and the base material.

In order to achieve the second object, the invention according to claim 2 provides an automatic fixing device for fixing a metal member having a flange portion to a substrate by using a hot melt. A base member set mold for holding the base member with the member fixing surface side facing down; a member set member disposed below the base member set member for holding the metal member; Lifting and lowering means for vertically moving between a standby position spaced a predetermined distance downward from the material set mold and a pressing position for pressing the metal member held by the member set mold against the base material held by the base set mold; A hot melt feeding device for feeding and placing a hot melt on the flange portion of the metal member held in the member set mold located at the standby position; and a member set mold located at the pressing position. Hold the metal member By heating the Nji portion is configured to include a heating means to melt the hot melt between the flange portion and the base material.

The invention according to claim 3 is dependent on the invention according to claim 2, wherein the metal member has flange portions on both side ends thereof, and the hot melt feeding device is provided with the metal member. Two metal members are provided corresponding to the number of flange portions.

The inventions of claims 4 and 5 are all dependent on the invention of claim 2 or 3, and show their constituent elements more specifically. That is, in the invention described in claim 4, the heating means is constituted by a high-frequency induction heating device provided in the substrate set type. According to a fifth aspect of the present invention, the hot melt feeding device is formed by winding a hot melt, which is housed in the case and rotatably supported in the case, which is disposed in the side of the member set type. A hot melt roll, and a pair of delivery belts for sandwiching the hot melt drawn from the hot melt roll, and a motor that drives the delivery belt and sends the hot melt out of the case, and The hot melt discharge port of the case is provided at a position substantially equal to the height of the flange portion of the metal member held in the member set type located at the standby position and close to the tip of the flange portion.

Further, the invention according to claim 6 is provided as a hot melt feeding device for feeding and placing hot melt on a flange portion of a metal member, which is housed in a case and rotatably supported. A hot melt roll formed by winding the hot melt, a pair of delivery belts for holding the hot melt drawn from the hot melt roll, and a motor for driving the delivery belt and sending the hot melt out of the case. The configuration is provided with.

[0011]

According to the above-mentioned structure, according to the first aspect of the present invention,
After setting the base material in the base material set mold and the metal member in the member set mold respectively in a predetermined state, place the hot melt on the flange portion of the metal member, and then wait for the member set mold The member is raised from the position to the pressing position, and the metal member held by the member set mold is pressed against the base material held by the base material set mold. In this pressed state, the flange portion of the metal member is heated to melt the hot melt between the flange portion and the base material. Thereby, the metal member is fixed to the base material at the flange portion. In the case of this fixing method, it is sufficient to place the hot melt on the flange portion of the metal member, and it is not necessary to peel off and release the release paper from the hot melt as in the conventional fixing method. The hot melt has a size and a shape corresponding to the flange portion of the metal member, and all the portions are used for fixing the metal member.

According to the second aspect of the present invention, the hot melt is held in the member set mold by the hot melt feeding device after the base material is set in the base material set mold and the metal member is set in the member set mold respectively. It is fed and placed on the flange portion of the metal member that has been placed. Subsequently, the member set mold is raised from the standby position to the pressing position by the operation of the elevating means, and the metal member is pressed against the base material held by the base material set mold. In this pressed state, the heating member heats the flange portion of the metal member to melt the hot melt between the flange portion and the base member, whereby the metal member is fixed to the base member at the flange portion. . As described above, most steps in the fixing work of the metal member are automatically performed, so that labor saving and speeding up of the work can be achieved.

Further, in the invention according to claim 5 or 6,
The hot-melt feeding device is housed in a case and rotatably supported, and is provided with a hot-melt roll formed by winding a hot-melt, and a pair of delivery belts for holding the hot-melt drawn from the hot-melt roll. And a motor that drives the delivery belt to deliver the hot melt out of the case, and continuously feeds the hot melt corresponding to its size and shape onto the flange portion of the metal member. And can be placed.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

3 and 4, reference numeral 1 denotes an inner panel of a door for an automobile, and 2 denotes a door trim mounted on the inner panel 1 so as to cover a surface of the inner panel 1 on the vehicle interior side. A base material 3 made of a non-metallic material such as wood or resin, and a skin material 4 provided on the surface of the base material 3
Consists of A metal bracket 5 is fixed to the back surface of the base material 3, and the bracket 5 is provided with a horizontal surface portion 5a.
A pair of left and right side walls 5b, 5b extending at substantially right angles from both left and right sides of the horizontal surface 5a;
b, 5b, a pair of flange portions 5c, 5c that bend at substantially right angles in opposite directions to each other and extend. Each of the flange portions 5c is fixed to the back surface of the base material 3 by a hot melt 6, while a cutout portion 7 is formed in the horizontal surface portion 5a.
The base of a fastener 8 is engaged with the notch 7. Then, the door trim 2 is mounted on the inner panel 1 by inserting and engaging the tip of the fastener 8 into a hole 9 formed in the inner panel 1.

FIGS. 1 and 2 show an automatic fixing device A according to an embodiment of the present invention. The automatic fixing device A is for fixing a bracket 5 as a metal member to the door trim base material 3. It is.

In FIG. 1 and FIG. 2, reference numeral 11 denotes a base set type for holding the base 3 with the bracket fixing surface side of the door trim base 3 facing downward.
Is provided so as to be able to move up and down between a position shown in the figure and a standby position above the position by an elevating device (not shown),
The mold surface 11a of the base material setting die 11 (that is, the surface on which the door trim base material 3 is set and held) is
It is formed corresponding to the concave and convex shape. Reference numeral 12 denotes a member set mold disposed below the base set mold 11, and the bracket 5 is provided on the upper part of the member set mold 12.
A fitting portion 12a is formed which can be fitted with the flange portions 5c, 5c exposed on the upper surface, and the bracket 5 is fitted and held by the fitting portion 12a.

The tip of a piston lot 14a of a cylinder device 14 erected on a base 13 is connected to the member set mold 12, and the cylinder device 14 includes the member set mold 12 as an elevating means. As shown in the drawing, a standby position at a predetermined distance below the base material setting die 11 and a pressing position for pressing the bracket 5 held by the member setting die 12 against the door trim base material 3 held by the base material setting die 11. It can be moved up and down between.

On both left and right sides of the cylinder device 14, a pair of hot melts 6 are fed and placed on each flange portion 5c of the bracket 5 held by the member set mold 12 located at the standby position. Hot melt feeder 1
5, 15 are arranged. Each of the hot melt feeding devices 15 includes a box-shaped case 16 installed on the base 13,
A hot melt roll 18 wound around a belt-shaped hot melt 6 and housed in a lower part of the case 16 and rotatably supported around a support shaft 17; and a hot melt 6 pulled out from the hot melt roll 18. And a pair of delivery belts 19, 19 sandwiching the
And a motor 20 for driving at least one of the hot melt 9 and sending out the hot melt 6 out of the case 16. The hot melt discharge port 16a of the case 16 is provided at substantially the same height as the flange portion 5c of the bracket 5 held by the member set mold 12 located at the standby position and close to the tip of the flange portion 5c. Have been. The width of the hot melt outlet 16a is set to be substantially the same as the width of the hot melt 6, and the hot melt outlet 16a protrudes in the delivery direction and is vertically spaced toward the front of the delivery. Are formed in a nozzle shape that gradually narrows. Here, the width of the hot melt 6 is
Is set slightly smaller than the width B of the flange portion 5c (see FIG. 4), and when the hot melt 6 is melted and the flange portion 5c is fixed to the door trim base material 3, the flange portion 5c is positioned from the side of the flange portion 5c. The hot melt 6 does not melt out, and the entire surface of the flange portion 5c is fixed.

Further, the flanges 5c, 5c of the bracket 5 held by the member set mold 12 located at the pressing position are heated by heating the flanges 5c, 5c and the door trim. High frequency induction heating device 2 as heating means for melting hot melt 6 between base material 3
1 is provided. The heating device 21 includes a coil 22 composed of a hollow tube buried in a portion separated from the mold surface 11a of the base material setting mold 11 by a predetermined dimension (about 0 to 20 mm), and a coil 22 having two ends 22a A power supply 23 for applying a high-frequency voltage. Further, the heating device 21
In order to cope with the fact that the coil 22 itself generates heat when a high-frequency voltage is applied, cooling water is caused to flow in the coil 22 to cool it.

In FIG. 2, reference numeral 24 denotes a first sensor for detecting that the bracket 5 is set in a predetermined state in the fitting portion 12a of the member setting mold 12, and reference numeral 25 denotes a hot melt feeder 15 for each hot melt feeder 15. This is a second sensor for detecting that the melt melt 6 cannot be sent from the hot melt roll 18, and the detection signals of these sensors 24 and 25 are output to a control unit (not shown) of the automatic fixing device A. Then, the control unit controls the operation of the automatic fixing device A.

Next, an operation procedure when the bracket 5 is fixed to the door trim base material 3 using the automatic fixing device A will be described.

Now, the substrate setting die 11 is located at a standby position above the position shown in the figure. Further, as shown, the cylinder device 14 is in a contracted state, and the member set mold 12 is located at the standby position. In this state, first, the door trim base material 3 is set and held on the die surface 11a of the base material setting die 11 with its bracket fixing surface side facing downward. Also, the bracket 5 is fitted and set to the fitting portion 12a of the member set mold 12 with the flange portions 5c, 5c exposed on the upper surface of the member set mold 12, and held.

Thereafter, in each of the hot melt feeding devices 15, the motor 20 rotates forward and the hot melt 6 is drawn out of the hot melt roll 18 by the pair of sending belts 19, 19, and the sending port 16a of the case 16 is provided. Through the flange 5c of the bracket 5 and placed. Subsequently, the cylinder device 14 extends and the member set mold 12 rises from the standby position to the pressing position, and the bracket 5 held by the member set mold 12 is
It is pressed by the door trim base material 3 held by the base material setting die 11 by both flange portions 5c, 5c. When the hot melt 6 is sent out and placed on the flange portion 5c of the bracket 5, an extra amount of the hot melt 6 is sent out by an amount corresponding to the rising of the member setting die 12 from the standby position to the pressing position, and the member setting is performed. When the mold 12 is raised to the pressing position, the delivery tip portion of the hot melt 6 is clamped over substantially the entire surface between the flange portion 5c of the bracket 5 and the door trim base material 3. Further, when the member set mold 12 is raised to the pressing position, a drawer portion other than the drawer tip of the hot melt 6 sandwiched between the flange portion 5 c of the bracket 5 and the door trim base material 3 sends out the case 16. Mouth 16a
And along the side surface of the member set mold 12.

Subsequently, the flanges 5c of the bracket 5 are heated by the high-frequency induction heating device 21 to melt the hot melt 6 between the flanges 5c and the door trim base material 3. Thereafter, the motor 20 of each hot melt feeding device 15 rotates in the reverse direction, and the hot melt 6 is pulled toward the case 16 side. Then, the hot melt 6 becomes the member set mold 1
2 near the upper side edge, that is, the flange portion 5c of the bracket 5
And is pulled into the case 16 except for a portion used for fixing the bracket 5.

When the heating by the high-frequency induction heating device 21 is stopped and the hot melt 6 melted between the flange portion 5c and the door trim base material 3 is cooled and solidified, the flange portion 5c of the bracket 5 is formed. It is fixed to the door trim base material 3 by the hot melt 6. Thereafter, the base material setting die 11 and the member setting die 12 are respectively moved to the original standby positions, and finally, the door trim base material 3 to which the bracket 5 is fixed is removed from the base material setting die 11. Thus, a series of operations for fixing the bracket 5 to the door trim base material 3 is completed.

When the bracket 5 is fixed to the door trim base material 3 by the above-described method, it is not necessary to perform the troublesome work of peeling off and releasing the release paper from the hot melt 6 as in the conventional fixing method. Therefore, the operation can be simplified and speeded up. And hot melt 6
Even if the hot melt 6 is not stuck on the flange portion 5c of the bracket 5, the hot melt 6 placed on the flange portion 5c will not be displaced, and the bracket 5 can be securely fixed.

The hot melt 6 needs to be of a size and shape corresponding to the flange portion 5c of the bracket 5,
Since all the parts are used for fixing the bracket 5, the required amount of the hot melt 6 can be reduced as much as possible, and the cost can be reduced.

Further, the automatic fixing device A as in the above embodiment is used.
When the fixing work of the bracket 5 is performed by using the door trim base material 3 and the bracket 5,
Most of the fixing work except the setting and removal of the work is automatically and continuously performed, so that labor saving and efficiency of the work can be achieved.

In addition, in the automatic fixing device A,
A high-frequency induction heating device 21 is used as a heating means for heating the flange portion 5c of the bracket 5 to melt the hot melt 6 between the flange portion 5c and the substrate 3, and the heating device 21 is compared with the member set mold 12. By providing the large base set mold 11, the arrangement of the heating device 21 can be easily set while preventing unnecessary portions from being heated.

It should be noted that the present invention is not limited to the above-described embodiment, but includes various other modifications.
For example, in the above embodiment, the member set mold 12 is raised to the pressing position, and the hot melt 6 sandwiched between each of the flange portions 5c of the bracket 5 held by the member set mold 12 and the door trim base material 3 is removed. After melting, the motor 20 of the hot melt feeding device 15 is rotated in reverse to
Is cut near the front end of the flange portion 5c of the bracket 5. However, in the present invention, in the hot melt feeding device 15, a cutter is provided near the hot melt discharge port 16a, and the hot melt is supplied from the hot melt discharge port 16a. 6
May be sent out onto the flange portion 5c of the bracket 5 held by the member set mold 12 located at the standby position, and then placed, and then the hot melt 6 may be cut by the cutter.

In the above embodiment, the case where the bracket 5 is fixed to the door trim base material 3 of the door for an automobile has been described. However, the present invention is not limited to this case. The present invention can be widely applied when a member made of a material is fixed to a substrate.

[0033]

As described above, according to the method for fixing a metal member according to the first aspect of the present invention, it is sufficient to place a hot melt on a flange portion of a metal member. There is no need to peel off and release the release paper from the melt, and since all parts of the hot melt are used for fixing metal members, the fixing operation can be simplified and speeded up, and the cost can be reduced. The cost can be reduced.

According to the apparatus for automatically fixing metal members according to the second aspect of the present invention, most steps in the operation of fixing metal members are automatically performed, so that labor saving and speeding up of the operation can be achieved. Can be achieved.

According to the fourth aspect of the present invention, in addition to the effect of the second aspect, heating for heating the flange portion of the metal member to melt the hot melt between the flange portion and the base material. By configuring the means with a high-frequency induction heating device provided in a base material set type which is larger than a member set type, it is possible to easily set the heating device while preventing unnecessary portions from being heated. It also has the effect that it can be done.

According to the fifth aspect of the invention, the hot melt corresponding to the size and shape can be continuously fed and placed on the flange portion of the metal member by the hot melt feeding device. Therefore, it is possible to further reduce labor and speed of the fixing work.

According to the hot melt supply device of the present invention, the hot melt corresponding to the size and shape can be continuously fed and mounted on the flange portion of the metal member. This can contribute to simplification and speeding-up of the fixing work of the manufacturing members.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of an automatic fixing device according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is an enlarged sectional view showing a mounting structure of a door trim.

FIG. 4 is a perspective view showing a state in which a bracket is fixed to a door trim base material.

FIG. 5 is a diagram corresponding to FIG. 1 showing a conventional example.

FIG. 6 is an enlarged perspective view of a main part of FIG. 5;

[Explanation of symbols]

 Reference Signs List 3 base material 5 bracket (metal member) 5c flange portion 6 hot melt 11 base material setting type 12 member setting type 14 cylinder device (elevating means) 15 hot melt feeding device 16 case 16a hot melt discharge port 18 hot melt roll 19 sending belt 20 motor 21 high frequency induction heating device (heating means)

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B29C 65/00-65/82 F16B 5/00-5/12

Claims (6)

(57) [Claims] 1. A fixing method for fixing a metal member having a flange portion to a base material by using a hot melt, wherein the base material fixing surface side of the base material faces downward and the base material is formed into a base material set type. Setting, and setting the metal member in a member set mold located at a standby position below the base material setting mold, and thereafter, mounting a hot melt on a flange portion of the metal member. Subsequently, raising the member set mold from the standby position to the pressing position, and pressing the metal member held by the member set mold against the base material held by the base material set mold, Heating the flange portion of the metal member in a pressed state to melt the hot melt between the flange portion and the base material. 2. An automatic fixing device for fixing a metal member having a flange portion to a substrate using a hot melt, the substrate holding the substrate with the member fixing surface side of the substrate facing downward. A set mold, a member set mold that is disposed below the base set mold and holds the metal member, a standby position where the member set mold is separated from the base set mold by a predetermined distance, and a member set. Elevating means for vertically moving a metal member held by the mold between a pressing position for pressing the metal member held by the substrate set mold, and a metal member held by the member set mold positioned at the standby position A hot melt feeder for feeding and placing the hot melt on the flange portion of the member; and heating the flange portion of the metal member held in the member set mold located at the pressing position to heat the flange portion. Between the substrate and the substrate Automatic anchoring device of the metallic member, characterized in that a heating means for melting the bets. 3. The metal member has flange portions on both side ends thereof, and two hot melt feeding devices are provided corresponding to the number of flange portions of the metal member. The automatic fixing device for a metal member according to claim 2. 4. The automatic fixing device for a metal member according to claim 2, wherein said heating means is a high-frequency induction heating device provided in said substrate set type. 5. A hot melt feeding device, comprising: a case arranged on a side of a member set type; and a hot melt roll wound around a hot melt, housed in the case and rotatably supported. A pair of delivery belts for holding the hot melt drawn out of the hot melt roll, and a motor for driving the delivery belt to deliver the hot melt out of the case. 4. The metal according to claim 2, wherein the spout is provided at substantially the same height position as the flange portion of the metal member held in the member set type located at the standby position and close to the tip of the flange portion. Automatic fixing device for parts. 6. A hot melt feeding device for feeding and placing a hot melt on a flange portion of a metal member, wherein the hot melt feed device is housed in a case and rotatably supported. A hot melt roll, a pair of delivery belts for holding the hot melt drawn from the hot melt roll, and a motor for driving the delivery belt to deliver the hot melt out of the case. And hot melt feeder.