JPH0647813A - Method for fixing metal member, automatic fixing device and hot melt feeder - Google Patents

Abstract

PURPOSE:To simplify the works and reduce the cost when a metal component is fixed to a base by using hot melt. CONSTITUTION:A base 3 is set in a base sheet mold 11 with the component fixed face side of a base 3 facing downward, and a metal component 5 is set in a component sheet mold 12 positioned on the waiting position below the base sheet mold 11. After that, hot melt 6 is fed onto a flange section 5c of the metal component 5 by a hot melt feeder 15 and placed thereon. Successively a cylinder device 14 is operated to lift up the component sheet mold 12 from the waiting position up to the pressing position, and the metal component 5 held by the component sheet mold 12 is pressed to the base 3 held by the base sheet mold 11. The flange section 5c of the metal component 5 is heated by a high frequency induction heater in the pressed state, and hot melt 6 between the flange section 5c and the base 3 is melted.

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 hot melt, and an automatic fixing device and a hot melt feeding device for directly using the metal member. is there.

[0002]

2. Description of the Related Art Conventionally, as a method for attaching a small metal member to a base material, a method using hot melt has been known. In this method, for example, as shown in FIGS. 5 and 6, a U-shaped metal member a having outwardly facing flange portions a1 and a1 at both ends is replaced with a base material b made of a non-metal material such as wood. In the case of attaching to the base, first, the base material b is set into the set mold c.
Set on top. Next, release paper is cut from the central portion (the portion corresponding to the main body portion of the metal member a) on the surface side to which the adhesive of the hot melt d, which has been cut in advance according to the size and shape of the metal member a, is applied. It is peeled off, and the hot melt d is attached to a predetermined position of the base material b. After that, 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 mold e. Then, the base material b
The high-frequency induction heating device f provided in the
Both flange portions a1 and a1 are heated to melt the side end portions of the hot melt d sandwiched between the flange portions a1 and the base material b. After that, by stopping heating, hot melt d
As a result, both flange parts a1 and a1 of the metal member a are formed on the base material b.
Stuck to.

[0003]

However, in the above-mentioned conventional method, there is a problem that it takes time and effort to peel off the release paper from the hot melt d and attach the hot melt d to the base material b. Further, the portion of the hot melt d used only for this sticking occupies 1/3 or more of the whole hot melt d, so that the required hot melt d is increased by that amount, and the cost becomes high. is there.

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

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

[0006]

In order to achieve the first object, the invention according to claim 1 is a method for fixing a metal member having a flange portion to a base material by using hot melt, A step of setting the base material in a base material set mold with the member fixing surface side of the base material facing downward, and a step of setting the metal member in a member set mold located at a standby position below the base material set mold. After that, a step of placing hot melt on the flange portion of the metal member, and subsequently,
A step of 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; A step of 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 is an automatic fixing device for fixing a metal member having a flange portion to a base material by using hot melt, and A base material set mold that holds the base material with the member fixing surface side facing downward, a member set mold that is disposed below the base material set mold and holds the metal member, and the member set mold Elevating means for moving up and down between a standby position that is a predetermined distance downward from the material set mold and a pressing position that presses the metal member held by the member set mold against the base material held by the base material set mold. , A hot melt feeding device for feeding and placing hot melt on the flange portion of the metal member held by the member set mold located at the standby position, and a member set mold located at the pressing position. Hold the metal parts 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 at both ends thereof, and the hot melt feeding device is provided with: Two pieces are provided corresponding to the number of flanges of the metal member.

The inventions defined in claims 4 and 5 are dependent on the invention defined in claim 2 or 3, and more specifically show the components thereof. That is, in the invention according to claim 4, the heating means is constituted by a high frequency induction heating device provided in the base material 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 a case set on the side of a member set type and rotatably supported in the case. And a pair of delivery belts sandwiching the hot melt drawn from the hot melt roll, and a motor for driving the delivery belt to deliver the hot melt to the outside of the case, and The hot melt delivery port of the case is provided at substantially the same height as the flange portion of the metal member held by the member set mold located at the standby position and in the vicinity of the tip of the flange portion.

Further, the invention according to claim 6 is a hot-melt feeding device for feeding hot-melt and placing it on the 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 sandwiching the hot melt drawn out from the hot melt roll, and a motor for driving the delivery belt to deliver the hot melt to the outside of the case. Is provided.

[0011]

With the above construction, in the invention according to claim 1,
After setting the base material to the base material set mold and the metal member to the member set mold 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 metal member held by the member set die is pressed against the base material held by the base material set mold by elevating from the position to the pressing position. 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. As a result, the metal member is fixed to the base material at the flange portion. In the case of this fixing method, it suffices to place the hot melt on the flange portion of the metal member, and it is not necessary to peel off the release paper from the hot melt and attach the hot melt unlike the conventional fixing method. The hot melt has a size and 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, after the base material is set in the base material set mold and the metal member is set in the member set mold in a predetermined state, the hot melt is held in the member set mold by the hot melt feeding device. The metal member is fed and placed on the flange portion of the metal member. Subsequently, the operation of the elevating means raises the member set mold from the standby position to the pressing position, and the metal member is pressed against the base material held by the base material set mold. In this pressed state, the heating means heats the flange portion of the metal member to melt the hot melt between the flange portion and the base material, whereby the metal member is fixed to the base material at the flange portion. . As described above, most of the steps in the work of fixing the metal member are automatically performed, so that the labor and speed of the work can be reduced.

Further, in the invention according to claim 5 or 6,
The hot-melt feeding device is a rotatably-supported hot-melt roll housed in a case, and a pair of delivery belts sandwiching the hot-melt roll drawn from the hot-melt roll. And a motor that drives the delivery belt to deliver the hot melt to the outside of the case. The hot melt corresponding to the size and shape is continuously fed onto the flange of the metal member. Can be placed.

[0014]

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

In FIGS. 3 and 4, 1 is an inner panel of a vehicle door, 2 is a door trim mounted on the inner panel 1 so as to cover the inner surface of the inner panel 1, and the door trim 2 is A base material 3 made of a non-metallic material such as a wood material or a 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 has a horizontal surface portion 5a.
And a pair of left and right side wall portions 5b, 5b which are bent from the left and right sides of the horizontal plane portion 5a at substantially right angles, and each side wall portion 5
It is composed of a pair of flange portions 5c and 5c which extend from b and 5b in opposite directions and are bent at substantially right angles. Each of the flange portions 5c is fixed to the back surface of the base material 3 by the hot melt 6, while the notch portion 7 is formed in the horizontal surface portion 5a.
The base end portion of the fastener 8 is engaged with the cutout portion 7. The door trim 2 is attached to the inner panel 1 by inserting and engaging the tip portion of the fastener 8 with the hole 9 formed in the inner panel 1.

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. Is.

In FIGS. 1 and 2, reference numeral 11 denotes a base material set type which holds the base material 3 with the bracket fixing surface side of the door trim base material 3 facing downward.
Is provided so that it can be raised and lowered between a position shown in the figure and a standby position above it by a lifting device (not shown),
Further, the mold surface 11a of the base material set mold 11 (that is, the surface on which the door trim base material 3 is set and held) is the door trim base material 3
It is formed corresponding to the uneven shape of. Reference numeral 12 is a member set mold disposed below the base material set mold 11, and the bracket 5 is provided on the upper part of the member set mold 12.
Is formed with a fitting portion 12a capable of fitting 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 which is erected on a base 13 is connected to the member set mold 12, and the cylinder device 14 uses the member set mold 12 as a lifting means. As shown in the figure, there are a standby position that is a predetermined distance downward from the base material set mold 11, and a pressing position that presses the bracket 5 held by the member set mold 12 against the door trim base material 3 held by the base material set mold 11. It is designed to move up and down in between.

On both left and right sides of the cylinder device 14, a pair of hot melts 6 are respectively fed and placed on the respective flange portions 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, which is housed in the lower part of the case 16 and is rotatably supported around a support shaft 17, formed by winding a band-shaped hot melt 6, and a hot melt roll 6 drawn from the hot melt roll 18. A pair of delivery belts 19 and 19 for sandwiching the two, and both delivery belts 19 and 1
A motor 20 for driving at least one of the hot melts 9 to send the hot melt 6 out of the case 16. The hot melt delivery 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 in the vicinity of the tip of the flange portion 5c. Has been. The horizontal width of the hot melt delivery port 16a is set to be substantially the same as the lateral width of the hot melt 6, and the hot melt delivery port 16a protrudes in the delivery direction and is vertically spaced toward the delivery front side. Is formed in a nozzle shape that gradually narrows. Here, the width of the hot melt 6 is equal to the width of the bracket 5.
Is set to be slightly smaller than the lateral 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, it is The hot melt 6 does not melt out, and the entire surface of the flange portion 5c is fixed.

Further, in the base material set mold 11, both flange parts 5c, 5c of the bracket 5 held by the member set mold 12 located at the pressing position are heated to heat the flange parts 5c, 5c and the door trim. High-frequency induction heating device 2 as heating means for melting hot melt 6 between substrate 3
1 is provided. The heating device 21 includes a coil 22 made of a hollow tube embedded in a portion separated by a predetermined dimension (about 0 to 20 mm) from the mold surface 11a of the base material set mold 11, and both ends 22a and 22a of the coil 22. And a power supply 23 for applying a high frequency voltage. In addition, the heating device 21
Is configured to flow cooling water into the coil 22 to cool the coil 22 itself in order to cope with heat generation when the high frequency voltage is applied.

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

Next, a procedure for fixing the bracket 5 to the door trim base material 3 using the automatic fixing device A will be described.

Now, the base material set mold 11 is located at the standby position above the illustrated position. Further, as shown in the drawing, the cylinder device 14 is in the 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 mold surface 11a of the base material setting mold 11 with the bracket fixing surface side facing downward. Further, the bracket 5 is fitted and set in the fitting portion 12a of the member set die 12 with the flange portions 5c, 5c thereof exposed on the upper surface of the member set die 12 and held.

Thereafter, in each hot melt feeding device 15, the motor 20 thereof is rotated in the forward direction to draw out the hot melt 6 from the hot melt roll 18 by the pair of delivery belts 19 and 19 and the delivery port 16a of the case 16. Through the flanges 5c of the bracket 5 and placed. Then, the cylinder device 14 is extended to move the member set die 12 from the standby position to the pressing position, and the bracket 5 held by the member set die 12 is
The flange portions 5c, 5c press the door trim base material 3 held by the base material set mold 11. When the hot melt 6 is delivered and placed on the flange portion 5c of the bracket 5, the extra hot melt 6 is delivered as much as the member set die 12 rises from the standby position to the pressing position to set the member. When the mold 12 rises to the pressing position, the delivery end 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 die 12 is raised to the pressing position, the withdrawal portion other than the withdrawal tip portion of the hot melt 6 sandwiched between the flange portion 5c of the bracket 5 and the door trim base material 3 is sent out of the case 16. Mouth 16a
Is stretched along the side surface of the member set mold 12.

Next, the high frequency induction heating device 21 heats each flange portion 5c of the bracket 5 to melt the hot melt 6 between the flange portion 5c and the door trim base material 3. After that, the motor 20 of each hot melt feeder 15 rotates in the reverse direction, and the hot melt 6 is pulled toward the case 16. Then, the hot melt 6 is the member set mold 1
2 near the upper side edge of the bracket 2, that is, the flange portion 5c of the bracket 5
Is cut near the tip of the bracket and is drawn into the case 16 except for the 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 removed. The hot melt 6 fixes the door trim base material 3. Then, the base material set mold 11 and the member set mold 12 are moved to their original standby positions, and finally, the door trim base material 3 to which the bracket 5 is fixed is removed from the base material set mold 11. With the above, 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-mentioned method, it does not require the laborious work of peeling and releasing the release paper from the hot melt 6 as in the conventional fixing method. The work can be simplified and speeded up. Moreover, hot melt 6
Even if it is not attached to 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 firmly fixed.

The hot melt 6 may 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
When the fixing work of the bracket 5 is performed by using the door trim base material 3 and the bracket 5, each set mold 11, 12
Since most of the fixing work except the setting and the removal to and from is automatically and continuously performed, it is possible to reduce the labor and efficiency of the work.

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 base material 3, and the heating device 21 is compared to the member set mold 12. Then, by providing the large-sized base material set mold 11, it is possible to easily set the arrangement of the heating device 21 while preventing heating of unnecessary portions.

The present invention is not limited to the above 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 the respective 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 the reverse direction so that the hot melt 6
However, according to the present invention, in the hot-melt feeding device 15, a cutter is provided near the hot-melt feeding port 16a so that the hot-melt feeding port 16a cuts the hot melt from the hot-melt feeding port 16a. 6
May be sent to the flange portion 5c of the bracket 5 held by the member set mold 12 located at the standby position and placed there, and then the hot melt 6 may be cut by the cutter.

Further, in the above embodiment, the case where the bracket 5 is fixed to the door trim base material 3 of the automobile door is described, but the present invention is not limited to this case, and the metal having the flange portion is formed by using hot melt. It can be widely applied when the manufactured member is fixed to the base material.

[0033]

As described above, according to the metal member fixing method of the present invention, it is sufficient to place hot melt on the flange portion of the metal member, which is the same as the conventional fixing method. It is not necessary to peel off the release paper from the melt and attach it, and since all parts of the hot melt are used for fixing the metal member, the fixing work can be simplified and speeded up, and the cost can be reduced. The cost can be reduced.

According to the automatic fixing device for a metal member in the second aspect of the present invention, most of the steps for fixing the metal member are automatically performed. Can be achieved.

According to the invention of claim 4, in addition to the effect of the invention of claim 2, 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 that is larger than the member set type, it is possible to easily set the placement of the heating device while preventing heating of unnecessary parts. It also has the effect that

According to the fifth aspect of the invention, the hot-melt feeding device can continuously feed and place hot-melt corresponding to the size and shape on the flange portion of the metal member. Therefore, it is possible to further save labor and speed up the fixing work.

According to the hot melt supply device of the sixth aspect of the invention, the hot melt corresponding to the size and shape of the metal member can be continuously fed and placed on the flange portion of the metal member. This can contribute to simplifying and speeding up the work of fixing the manufacturing member.

[Brief description of 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 cross-sectional view showing a door trim mounting structure.

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

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

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

[Explanation of symbols]

 3 Base Material 5 Bracket (Metal Member) 5c Flange Part 6 Hot Melt 11 Base Material Set Type 12 Member Set Type 14 Cylinder Device (Elevating Means) 15 Hot Melt Feeding Device 16 Case 16a Hot Melt Outlet Port 18 Hot Melt Roll 19 Sending belt 20 Motor 21 High frequency induction heating device (heating means)

Claims (6)

[Claims] 1. A fixing method for fixing a metal member having a flange portion to a base material by using hot melt, wherein the base material is a base material set type with the member fixation surface side of the base material facing downward. A step of setting, a step of setting the metal member in a member set mold located at a standby position below the base material set mold, and a step of placing hot melt on the flange portion of the metal member thereafter. Then, a step of raising the member set mold from a standby position to a pressing position and pressing the metal member held by the member set mold against the base material held by the base material set mold, And a step of 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 base material using hot melt, the base material holding the base material with the member fixing surface side of the base material facing downward. A set mold, a member set mold disposed below the base material set mold to hold the metal member, a standby position in which the member set mold is spaced downward from the base material set mold by a predetermined distance, and a member set Elevating means for moving the metal member held by the mold up and down between the pressing position for pressing the base member held by the base material set mold, and the metal member held by the member set mold located at the standby position. On the flange portion of the member, a hot melt feeder for feeding and placing hot melt, and the flange portion of the metal member held by the member set mold located at the pressing position is heated to form the flange portion. Between the base 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 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 metal members according to claim 2. 4. The automatic fixing device for a metal member according to claim 2, wherein the heating means is a high frequency induction heating device provided in the base material set mold. 5. The hot melt feeding device comprises a case arranged laterally of the member set type, and a hot melt roll wound with the hot melt housed in the case and rotatably supported therein. And a pair of delivery belts for sandwiching the hot melt drawn out from the hot melt roll, and a motor for driving the delivery belt to deliver the hot melt to the outside of the case. The metal according to claim 2 or 3, wherein the opening is provided at substantially the same height as the flange portion of the metal member held by the member set mold located at the standby position and close to the tip of the flange portion. Automatic fixing device for manufacturing members. 6. A hot-melt feeder for feeding hot-melt onto a flange portion of a metal member and placing the hot-melt on the flange, the hot-melt being housed in a case and rotatably supported. And a pair of delivery belts for sandwiching the hot melt drawn out from the hot melt roll, and a motor for driving the delivery belt to deliver the hot melt to the outside of the case. And a hot melt feeder.