KR101858412B1

KR101858412B1 - Combining method of plastic member

Info

Publication number: KR101858412B1
Application number: KR1020170155226A
Authority: KR
Inventors: 노치현; 김진완
Original assignee: 노치현; 김진완
Priority date: 2017-11-21
Filing date: 2017-11-21
Publication date: 2018-06-27

Abstract

The present invention relates to an elevator for an elevator, comprising a pedestal to which a lower joining member is installed, a stand part vertically vertically installed above the pedestal part, an upper pressurizing part provided on the stand part so as to be movable up and down, A method of joining a plastic member using an ultrasonic wave horn provided in a pressing portion to transmit ultrasonic waves to the upper joining member and a vibration member module provided in the receiving portion, Forming a friction groove in a side corresponding position where the upper and lower engagement members are engaged with each other; and forming a friction groove having a cross section corresponding to a cross section formed when the upper and lower engagement members are engaged with each other in a friction groove of the lower engagement member Connecting both end portions of the friction rod to the vibration module, moving the upper pressing portion downward Wherein the upper and lower engaging members are brought into contact with each other so that the friction grooves are in contact with each other at a position corresponding to the upper engaging member and the lower engaging member, and vibrating the friction rod in the longitudinal direction using the vibration module, So that the joining members are engaged with each other.

Description

Combining method of plastic member [0002]

The present invention relates to a joining method, and more particularly, to a joining method of a plastic member, in which a plurality of joining means are simultaneously applied to improve the joining force while simplifying the workability.

There are vibration welding method, ultrasonic welding method, and heat welding method using thermoplastic bonding method between plastic parts.

Among these welding methods, the ultrasonic welding method is a method of welding by using an ultrasonic horn, and the vibration welding method is a method of using physical friction, in which two plastic parts are pressed and brought into contact with each other, Thereby joining the joints of the parts to each other.

Meanwhile, the fusion bonding method for plastic bonding has disadvantages, and it is impossible to apply the bonding method depending on the shape of the bonding surface.

Korean Patent Publication No. 10-2010-0121085

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of joining a plastic member that increases joining force by applying two or more joining methods while simplifying operation. have.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to attain the above object, the present invention provides a portable terminal comprising: a support portion provided with a lower joining member; a stand portion vertically and vertically installed above the support portion; And a vibrating module provided on the receiving portion, the method comprising the steps of: providing an upper pressing portion, a lower pressing portion, and an ultrasonic wave transmitting portion provided on the upper pressing portion to transmit ultrasonic waves to the upper joining member; Forming a friction groove at a position corresponding to a side where the upper and lower engagement members are engaged with each other, and a friction rod having a cross section corresponding to a cross section formed when the upper and lower engagement members are engaged, The friction stir welding method comprising the steps of: installing the friction rod in a friction groove of a lower coupling member; connecting both ends of the friction rod to the vibration module; Moving the upper pressurizing portion downward to cause the upper and lower engaging members to abut against each other at a position corresponding to the friction grooves; and applying vibration to the friction rod by vibrating the friction rod in the longitudinal direction, The upper joint member and the lower joint member are coupled to the rod and the ultrasonic horn is used to feed the ultrasonic horn to the lower joint member and the friction rod in a state where the upper pressurizing unit is pressed downward, The method comprising the steps of:

The apparatus may further include an auxiliary vibration module for vibrating the upper or lower coupling member, and the upper or lower coupling member may be vibrated using the auxiliary vibration module.

The method may further include cutting the friction rod using the cutting module, further comprising a cutting module installed on the receiving portion.

According to the method of assembling the plastic member according to an embodiment of the present invention configured as described above, a friction rod is separately applied to two plastic members to perform primary bonding by vibration, and then, using an ultrasonic horn, And the degree of engagement with the friction rod is established, thereby increasing the bonding force.

In addition, according to the present invention, it is possible to bring about a coupling effect with the plastic member in a shorter time by using the heating module in the friction rod.

Further, when a friction rod made of a flexible material is applied, the present invention can be applied to a case where the coupling member has a curved line.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a plastic member coupling apparatus for a method of joining a plastic member of the present invention; FIG.
Fig. 2 is a flowchart sequentially showing the method of joining the plastic member of the present invention
FIG. 3 is a view showing a state in which a friction groove is formed in a side corresponding position where the upper and lower engagement members are coupled to each other, and then a friction rod is installed;
4 is a side view schematically showing a state in which a friction rod is vibrated by using a vibration module so that an upper joint member and a lower joint member are primarily engaged;
5 is a perspective view showing a state in which the upper and lower coupling members are completely joined after the friction rod is cut by the cutting module;
6 is a perspective view illustrating a state in which a state of engagement of the upper joining member and the lower joining member is measured;
7 is a perspective view showing another form of the friction rod applied to the method of bonding the plastic member of the present invention; And
FIG. 8 is a perspective view showing still another form of the friction rod applied to the method of joining the plastic member of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted. First, the configuration and operation according to the preferred embodiment of the present invention will be described with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a plastic member coupling apparatus for a method of joining a plastic member of the present invention. FIG.

As shown, the plastic member coupling device 100 includes a receiving portion 115, a stand portion 130, an upper pressing portion 120, an ultrasonic horn portion 150, a vibration module 160, and a cutting module 170 do.

The receiving unit 115 is configured such that the plastic lower joining member 12 is installed and the cutting module 170 is disposed on the receiving unit 115 on both sides of the lower joining member 12 .

The cutting module 170 includes a pressing portion 174 and a cutting edge 172 for cutting a friction rod 30 to be described later. The pressing portion 174 is a hydraulic piston-cylinder type The cutting edge 172 is configured to move upward when the piston moves.

The stand portion 130 is installed vertically and vertically to the upper portion of the receiving portion, and the upper pressing portion 120 is installed vertically movably along the stand portion 130.

The ultrasonic horn 150 is disposed on the upper pressing part 120 to transmit ultrasonic waves to the upper joining member. The vibration module 160 is disposed on both sides of the lower joining member at both sides of a friction rod 30 And is configured to vibrate along the longitudinal direction of the friction rod 30.

The vibration module 160 is provided with a heating module 180 in contact with both ends of the friction rod 30. Here, it is possible that the heating module 180 supplies heat to both ends of the friction rod 30 while allowing the vibration module 160 to vibrate the friction rod 30 along the longitudinal direction of the friction rod 30 .

The configuration of each of the upper pressing part 120, the ultrasonic horn part 150, the vibration module 160, and the cutting module 170 may be one of various known configurations and is obvious to those skilled in the art. Therefore, A detailed description thereof will be omitted.

Hereinafter, a method of joining two rectangular plastic members using the plastic member coupling apparatus 100 constructed as described above will be described.

FIG. 2 is a flowchart sequentially showing a method for bonding a plastic member according to the present invention.

As shown in Figs. 1 and 2, first, the step of forming the friction grooves 11a and 12a at the side corresponding positions to be coupled to the upper and lower engaging members 11 and 12, respectively (S10 ).

Then, the friction rod 30 is installed in the friction grooves 11a, 12a of the lower engaging member 12 (S20, see FIG. 3). At this time, both ends of the friction rod 30 are connected to the vibration module 160, and both ends of the friction rod 30 are in contact with the heating module 180.

Next, the upper pressing portion 120 is moved downward so that the upper and lower engaging members 11 and 12 are in contact with the friction grooves 11a and 12a at positions corresponding to each other So that the upper and lower engaging members 11 and 12 are engaged with the friction rod 30 by vibrating the friction rod 30 along the longitudinal direction using the vibration module 160 (S30, see Fig. 5).

After the upper and lower engaging members 11 and 12 are engaged with the upper and lower portions of the friction rod 30 by vibrating the friction rod 30 for a preset time, The ultrasonic wave using the ultrasonic horn 150 is supplied to the upper joining member 11 and the lower joining member 12 as well as the upper joining member 11 and the lower joining member 12 and the friction rod 30) are combined again (S40). At this time, depending on the situation, the position of the ultrasonic horn can be changed and the combining process may be performed. For this purpose, the installation position of the ultrasonic horn can be varied in the upper pressing part.

5, both sides of the friction rod 30 using the cutting edge 172 of the cutting module 170 are cut corresponding to the outer surfaces of the upper and lower engagement members 11 and 12 The entire plastic member joining method is completed.

(Not shown) for vibrating the upper joining member 11 or the lower joining member 12, which is not shown in detail, may be further provided, and the upper and lower joining members 11, The process of joining the members 11 and 12 or the upper / lower engagement member with the friction rod 30 may proceed.

6 is a perspective view showing a state in which a state of engagement of the upper joining member and the lower joining member is measured.

As shown, a measuring module is further provided for measuring the degree of engagement of the upper engagement member 11, the lower engagement member 12, and the friction rod 30 in a combined state.

The measurement module includes a plate-shaped bottom part 200 and a fixing jig part 210 for fixing the lower joining part 12 to the upper part of the bottom part 200, A movable part 235 and a supporting part 237 which move along the rail part 258 and a hot wind which supplies predetermined hot air to the upper part of the supporting part 237 are provided on one side rail part 258, A supply part 232 is provided.

The other side rail portion 258 is provided with a moving portion 245 and a supporting portion 247 which move along the rail portion 258 and a temperature sensing portion 242 above the supporting portion 247.

The hot air supply unit 232 and the temperature sensing unit 242 are provided at positions corresponding to the coupled parts of the upper and lower engaging members 11 and 12.

After the plastic member with the upper and lower coupling members 11 and 12 is fixed to the measurement module with the fixing jig 210, the hot air supply unit 232 and the temperature sensing unit 242 correspond to each other The temperature sensing unit 242 is used to determine whether the hot air supplied through the hot air supply unit 232 flows to the joint portion of the plastic member, .

Although not shown, hot air is supplied by using the hot air supply unit 232 after bonding a taping member to which a zeotropic pigment is applied to a joining portion of the plastic member, thereby detecting colors according to temperature changes of tapping, . That is, some coupling around the coupling part is not performed, and the hollow part shows different degrees of discoloration due to the inserted air.

7 and 8 are perspective views showing other forms of the friction rod applied to the method of joining the plastic member of the present invention.

As shown in FIG. 7, the friction rod 40 is formed in the shape of a circular rod having a predetermined length, like the friction rod 30 described above, and a heat transfer portion 42 of steel material may be provided along the longitudinal direction.

When the friction rod 40 is connected to the vibration module 160 and the heating module 180, the friction rod 40 is coupled with the upper and lower coupling members 11 and 12 by the vibration of the friction rod 40, The friction rod 40 is heated by the heating module 180 through the internal heat transfer portion 42 of the friction rod 40 so that the friction rod 40 and the upper and lower engagement members 11, 12 can be made.

Or when the coil-shaped heat transfer portion 52 is applied to the inside of the friction rod 50 as shown in FIG. 8, the coil-shaped heat transfer portion that heats a wider range is used. It is possible to perform heating more efficiently and quickly than the case of FIG. 7 described above.

As described above, those skilled in the art will understand that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

For example, when the friction rod is made of a flexible material, the present invention can be applied to a case where the coupling portion of the upper and lower coupling members forms a curve.

11: upper engagement member 12: lower engagement member
30, 40, 50: friction rod 42, 52: heat transfer part
100: plastic member coupling device 115:
120: upper pressing part 130: stand part
150: ultrasonic horn 160: vibration module
170: cutting module 180: heating module

Claims

An upper pressing portion provided on the stand portion so as to be movable up and down and provided with an upper joining member, and an upper pressing portion provided on the upper pressing portion, And an ultrasonic horn for transmitting ultrasonic waves to the upper joining member, and a vibrating module provided on the receiving unit,
Forming a friction groove in a side corresponding position where the upper and lower engagement members are coupled with each other;
Providing a friction rod having a cross section corresponding to a cross section formed when the upper and lower engagement members are engaged with each other in a friction groove of the lower engagement member;
Connecting both ends of the friction rod to the vibration module;
Moving the upper pressing portion downward so that the upper and lower engaging members contact each other at a position corresponding to the friction grooves;
The vibration module is used to vibrate the friction rod along the longitudinal direction to couple the upper and lower engagement members to the friction rod; And
Applying ultrasonic waves to the ultrasonic horn to press the upper pressing part downward, so that the upper joining member and the lower joining member and the friction rod are engaged;
Wherein the plastic member is a plastic member.

The method according to claim 1,
Further comprising an auxiliary vibration module for vibrating the upper or lower coupling member,
And vibrating the upper or lower coupling member using the auxiliary vibration module
A method of joining a plastic member.

3. The method of claim 2,
And a cutting module installed on the receiving portion,
Further comprising cutting the friction rod using the cutting module.
A method of joining a plastic member.