KR100621147B1 - Apparatus and Method for Cutting Part of Plastic Window Frame Aggregate Using All-round Friction Movement - Google Patents

Abstract

The present invention is to provide an apparatus and a method for joining the cut portion of a plastic window frame aggregate using a frictional motion in all directions so that no additional bonding pieces are required and frictional motion is performed in all directions even in the friction method, so that a uniform joint can be formed in the entire cross section. A device for joining the ends of two selected plastic window frame aggregates by vibrating welding, as an embodiment of the preferred device, is provided with respective clamping means for fixing said plastic window frame aggregate, on the same plane to enable circular motion. A pair of diaphragms disposed; A pair of vibrators each connected to said pair of diaphragms, each having a concentric hole on one axis line and an eccentric hole formed at a position eccentric from the center of the concentric hole; A pair of eccentric cams disposed at a position adjacent to the eccentric holes of the pair of vibrators and selectively coupled to and separated from the eccentric holes according to the moving position; And a pair of alignment cams disposed adjacent to the concentric holes of the pair of vibrators and selectively coupled to and separated from the concentric holes according to the movement position, wherein the eccentric cams and the alignment cams are disposed on the output shaft of the driving motor. , The vibrator is coupled to any one of the alignment cam or the eccentric cam according to the operating direction of the actuator.

Window, window frame, window aggregate, chassis, vibration, friction, eccentric cam, diaphragm, joining

Description

Cutting part union device and method of plastic window frame used rubbing motion}

The following drawings, which are attached in this specification, illustrate preferred embodiments of the present invention, and together with the detailed description of the present invention, serve to further understand the technical spirit of the present invention. It should not be construed as limited to.

1 is a view showing an installation state of the window frame aggregate.

Figure 2a, 2b is a block diagram of the cut portion joining apparatus of the plastic window frame aggregate according to the present invention, Figure 2a is an alignment state diagram before vibration, Figure 2b is a vibration state diagram.

3 is a view showing an arrangement state of a pair of eccentric cam applied to the present invention.

Figure 4 is a view showing the cross-sectional motion of the window frame aggregate according to the rotation of the pair of eccentric cam applied to the present invention.

Figure 5 is a block diagram showing the bonding of the window frame aggregate in four places in accordance with the present invention.

<Explanation of symbols for the main parts of the drawings>

21,22: Diaphragm

31,32: Oscillator

31a, 32a: concentric holes

31b, 32b: eccentric hole

41,42: Eccentric Cam

51,52: Passion Cam

60: drive motor

70: actuator

81: up and down guide

82: front and rear information board

The present invention relates to a method and apparatus for welding window frame aggregate, which is applied to a window, and in particular, a method and apparatus for welding window frame aggregate, which is thermally fused by friction vibration according to all directions without using a separate joining piece. It is about.

Generally, as illustrated in FIG. 1, four window frame aggregates 11, 12, 13, and 14 are basically made of plastic, respectively. These window frame aggregates are thermally bonded at the sites where they meet at right angles to each other.

Conventionally, the method most commonly used is a method using a hot plate. This is to open two window frame aggregates (for example, 11 and 12), and then enter the hot plate between them, push both window frame aggregates to the hot plate, and melt the joint surface for a period of time, and then open both window frame aggregates to open the hot plate. After exiting, the two window frame aggregates are cooled by close contact with a constant force, and welding is performed.

Thus, in the case of the welding method for joining the window frame aggregate using a hot plate has the following problems.

First, because there are several stages, the entire cycle is long, which limits the production capacity.

Second, since the hot plate and window frame aggregate have to move repeatedly at a certain position every step, and the window frame aggregate has a certain delay time after waiting for heating, the strength increases due to air contact after heating, but the elongation is lowered. . As a result, when the window frame aggregate is impacted, stress is concentrated on the joint, and the joint surface may easily fall.

Third, the hot plate is coated with Teflon to melt well after melting the window frame aggregate. Therefore, the manufacturing cost of the Teflon coating process is increased.

Fourth, a large amount of plastic beads are generated at the joining surface of the window frame aggregate after thermal bonding, and the cutting and digging process requires a work process and mechanical equipment accordingly.

As a prior art for solving this problem, Korean Laid-Open Patent Publication No. 26143 (2004.3.27) (name: vibration welding method and apparatus of a thermoplastic part).

The above publication discloses a method and apparatus for forming a joint by friction welding between the joint piece and the two members by holding the joint piece on the vibration head side, pushing the two members toward the joint piece side, and vibrating the vibration head. Is initiated.

However, the above publication has the advantage of being able to join without a hot plate and producing a large amount of beads that need to be cut or dug, but it requires another joining member called a 'bonding piece'. In addition, the vibration system also has a problem that it is difficult to expect effective friction welding in the cross-sectional portion that is made only in one direction (for example, horizontal direction) and arranged in another direction (for example, vertical direction).

Therefore, the present invention was devised to solve the general problems of the prior art as described above, so that no separate joining pieces are required, and even in the friction method, the friction movement is performed in all directions, so that the uniform bonding can be made in the entire cross section. An object of the present invention is to provide an apparatus and a method for joining a cut portion of a plastic window frame aggregate using motion.

Specific means of the present invention for achieving the above object,

An apparatus for joining the ends of two selected plastic window frame aggregates by vibration welding,

A pair of diaphragms provided with respective clamping means for fixing the plastic window frame aggregate and arranged on the same plane to enable circular motion;

A pair of vibrators each connected to said pair of diaphragms, each having a concentric hole on one axis line and an eccentric hole formed at a position eccentric from the center of the concentric hole;

A pair of eccentric cams disposed at a position adjacent to the eccentric holes of the pair of vibrators and selectively coupled to and separated from the eccentric holes according to the moving position;

A pair of alignment cams disposed at a position adjacent to the concentric holes of the pair of vibrators and selectively coupled to and separated from the concentric holes according to the moving position,

The eccentric cam and the alignment cam is disposed on the output shaft of the drive motor, the vibrator is characterized in that coupled to any one of the pair of alignment cam or eccentric cam according to the operating direction of the actuator.

In addition, according to the present invention, the actuator is characterized in that its fixed end is connected to any one oscillator and its mobile end is connected to the other oscillator through the arm.

In addition, according to the present invention, the alignment cam and the eccentric cam is characterized in that the conical configuration.

In addition, according to the present invention, the vibration plate is characterized in that the four-sided movement is supported by the vertical guide plate, the front and rear guide plate slidingly supported on the vertical guide plate.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2a, 2b is a block diagram of the cut portion joining apparatus of the plastic window frame aggregate according to the present invention, Figure 2a is an alignment state before vibration, Figure 2b is a vibration state diagram, Figure 3 is an arrangement of a pair of eccentric cam applied to the present invention Figure 4 is a view showing the state, Figure 4 is a view showing the cross-sectional motion of the window frame aggregate according to the rotation of the pair of eccentric cam applied to the present invention, Figure 5 is a configuration showing that the window frame aggregate can be bonded in four places in accordance with the present invention It is also.

The present invention is to be welded by the frictional heat generated while the circular motion of the four sides of the window frame aggregate (11, 12) made of plastic as shown in Figures 2a, 2b eccentrically. At this time, the cross-sections of the two window frame aggregates (11, 12) are in close contact with each other, but the circular motion is to be induced in all directions in different directions. That is, the four-way movement can be understood to generate frictional heat while moving the two palms in a circular motion as if the two palms face each other.

4, when one window frame aggregate 11 moves forward in the F direction, the other window frame aggregate 12 moves backward in the R direction. In addition, when one of the window frame aggregate 11 moves up in the U direction, the other window frame aggregate 12 moves down in the D direction.

At this time, the cross section of the window frame aggregate (11, 12) by the circular motion in the S direction not only up and down movement, but also the movement occurs in all directions.

Therefore, in the present invention, not only means for circular movement of the cross sections of the window frame aggregates 11 and 12, but also guide means for supporting the alignment means and alignment means for matching the joint cross-sections of the window frame aggregates 11 and 12 after the circular motion are presented. do.

In FIGS. 2a and 2b, reference numerals 21 and 22 denote pairs of vibration plates that vibrate two plastic window frame aggregates 11 and 12 in all directions.

The diaphragm 21, 22 is provided with clamp means for fixing the window frame aggregate (11, 12), respectively. The clamp means can be understood as including an actuator (cylinder) which is operated hydraulically or pneumatically.

Reference numerals 31 and 32 denote 'vibrators' included in vibration means for vibrating the diaphragms 21 and 22.

One end of the vibrators 31 and 32 is connected to the diaphragms 21 and 22, and the other ends thereof have concentric holes 31a and 32a and eccentric holes 31b and 32b, respectively.

The concentric holes 31a and 32a are formed around the alignment axis 200, and the eccentric holes 31b and 32b have eccentric distances S1 and S2 at the center O of the alignment axis 200, respectively. Formed. At this time, the direction of the eccentric distance (S1, S2) is located in the opposite direction from the center (O) as shown in FIG.

Reference numeral '41, 42 'is a pair of' eccentric cam '.

The pair of eccentric cams 41 and 42 are disposed at positions adjacent to the eccentric holes 31b and 32b of the pair of vibrators 31 and 32 and selectively coupled to the eccentric holes 31b and 32b according to the moving position. And depart from.

In this embodiment, the eccentric cams 41 and 42 have a conical disc shape and have the same eccentric distances S1 and S2 as the eccentric holes 31b and 32b, respectively. (See Fig. 3)

The eccentric cams 41 and 42 are arranged on the output shaft 62 of the drive motor 60. Accordingly, when the output shaft 62 rotates while the eccentric cams 41 and 42 are coupled to the eccentric holes 31b and 32b, the vibrators 31 and 32 perform circular motions in the same direction while changing phases.

The output shaft 62 is provided with alignment cams 51 and 52 for matching the eccentric holes 31b and 32b with the eccentric cams 41 and 42. In addition, the alignment cams 51 and 52 also function to match the joining cross sections of the window frame aggregates 11 and 12 mounted on the diaphragms 21 and 22.

The pair of alignment cams 51 and 52 are disposed at positions adjacent to the concentric holes 31a and 32a of the pair of vibrators 31 and 32 and selectively coupled to the concentric holes 31a and 32a according to the moving position. And depart from. In the present embodiment, the alignment cams 51 and 52 have a conical disc shape and the alignment axis 200 is disposed on the center line.

As such, the eccentric cams 41 and 42 and the alignment cams 51 and 52 are disposed on the output shaft 62 of the drive motor 60, and the vibrators 31 and 32 are disposed in the operating direction of the actuator 70. Accordingly, the alignment cams 51 and 42 or the eccentric cams 41 and 42 are coupled to any one pair.

In this embodiment, the actuator 70 is a pneumatically operated cylinder whose fixed end 71 is connected to one of the one oscillator 31 and its moving end 72 is the other through the arm 80 It is connected to the other vibrator 32 of the.

Therefore, as shown in FIG. 2B, when the moving end 72 of the actuator 70 is extended, the vibrators 31 and 32 move to the eccentric cams 41 and 42, and the eccentric holes 31b and 32b of the vibrators 31 and 32. The eccentric cams 41 and 42 are inserted into it. On the contrary, when the moving end 72 of the actuator 70 contracts as shown in 2a, the vibrators 31 and 32 move to the alignment cams 51 and 52, so that the concentric holes 31a and 31b of the vibrators 31 and 32 are moved. Alignment cams (51, 52) are inserted into the.

When the vibrators 31 and 32 are moved as described above and combined with the alignment cams 51 and 52, the vibrating plates 21 and 22 connected to the vibrators 31 and 32 become a setting position. Therefore, when the window frame aggregate (11, 12) is clamped to the diaphragm (21, 22), the cross section of the window frame aggregate (11, 12) is to take a posture. At the same time, the eccentric cams 41 and 42 have an entry standby state at one side of the eccentric holes 31b and 32b of the vibrators 31 and 32.

On the other hand, the vibrating plate (21, 22) is supported on all sides by the upper and lower guide plate 81, and the front and rear guide plate 82 slidingly supported by the upper and lower guide plate (81).

The operation of this embodiment configured as described above will be described.

<Centering passion>

First, when the moving end 72 of the actuator 70 is contracted as shown in Figure 2a, one side vibrator 31 connected via the arm 80 is moved to one side alignment cam 51 and at the same time the other side vibrator 32 Moves to the other side alignment cam 52.

Therefore, the alignment cams 51 and 52 are tapered into the concentric holes 31a and 32a of the vibrators 31 and 32, and as a result, the vibrators 31 and 32 are based on the center of the alignment cams 51 and 52. Are aligned.

In this case, the eccentric holes 31b and 32b of the vibrators 31 and 32 and the eccentric cams 41 and 42 face each other at neighboring positions.

<Clamping window frame member>

Next, the window frame members 11 and 12 are clamped to the diaphragms 21 and 22 by clamp means (not shown). In this case, the clamping force may be, for example, made by an actuator.

And the cross section of the window frame members (11, 12) is pushed by the pressing means (not shown) at a constant surface pressure of each other.

<Motor position movement and vibration friction>

When the clamping of the window frame members 11 and 12 is completed, the actuator 70 operates in the reverse direction so that the moving end 72 extends. Accordingly, the vibrators 31 and 32 move away from the alignment cams 51 and 52 and move to the eccentric cams 41 and 42. As a result, as shown in FIG. 2B, the eccentric cams 41 and 42 are vibrators 31 and 32, respectively. Are inserted into the eccentric holes 31b and 32b.

Then, the drive motor 34 is driven (the drive motor can be connected to the inverter to increase and decrease the number of revolutions), and when the output shaft 62 is rotated at a high speed of 1800rpm or more via the vibrator (31,32) The diaphragms 21 and 22 make circular motions in the same direction. At this time, the movement direction of any one of the diaphragm 21 is in a circular motion opposite to the movement direction of the other diaphragm 22.

That is, when one side diaphragm 21 is upward, the other side diaphragm 22 moves downward, and when one side diaphragm 21 is forward, the other side diaphragm 22 moves backward, and a circular motion is induced.

In this way, the vibration direction of the diaphragm 21, 22 is a circular motion moving in all directions, up and down in all directions, and the circular motion is induced so that a point of the cross section of the joint portion of the plastic window frame aggregate 11 and 12 follows the trajectory of a circle of a predetermined size. This will be done.

Therefore, both end surfaces of the window frame aggregates 11 and 12 are welded to each other by the frictional heat generated due to the vibrational friction caused by the four-way movement. At this time, the upper and lower guide plates 81 and the front and rear guide plates 82 guide and support the four vibration movements of the diaphragms 21 and 22.

Thus, the cross section of the window frame aggregate (11, 12) does not reciprocate only in one direction, but occurs in the front and rear up and down directions in a circular motion, so that the welding time is completed in a few seconds to several tens of seconds, in particular the window frame aggregate (11, 12) The core technology is to achieve uniform friction welding regardless of the cross section direction.

In addition, the present invention can use the friction welding of the window frame aggregate (11, 12) itself without using a separate joining piece can reduce the production cost.

<Eccentric Cam Abandonment and Centering Passion>

When the friction welding of the window frame aggregates 11 and 12 is completed after the frictional movement occurs for several seconds, the driving motor 60 is stopped and the vibration cams 31 and 32 are moved axially by the actuator 70. Departures from the eccentric holes 31b and 32b of the vibrators 31 and 32.

At the same time, the alignment cams 51 and 52 are inserted into the concentric holes 31a and 32a of the vibrators 31 and 32 so that the diaphragms 21 and 22 are positioned in position so that the end faces of the window frame members 11 and 12 coincide with each other. There is no misalignment with each other. (See Figure 2A)

When the friction welding of the window frame aggregates 11 and 12 is completed as described above, the actuator is operated and unclamped after having a constant cooling time in the air, and the window frame aggregates 11 and 12 are taken out.

On the other hand, the present invention has been described with respect to the vibration welding in one part of the window frame aggregate, the present invention by using the above principle and configuration to be arranged in four places as shown in Figure 5 to complete all the vibration welding in one machine equipment have.

As described above, the present invention is not a welding method using a hot plate as in the related art, but after the window frame aggregates 11 and 12 are clamped, the circular motion is induced in all directions by the eccentricity, so that the end is thermally welded by the non-beam friction, thereby friction welding. The time is shortened.

In addition, since the joints of the window frame aggregates 11 and 12 are directly friction-welded without being exposed to air, they have properties such as strength of the window frame aggregates 11 and 12 itself without any change in the welded material.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

As described above, according to the apparatus for joining the cutout portion of the plastic window frame aggregate using the all-round frictional motion of the present invention and the method thereof, the heating time is shortened because it is welded by heat friction between two members directly rather than using a hot plate or a separate joining piece. It is possible to perform vibration welding without changing the properties such as strength and elongation, and in particular, it has a feature of obtaining uniform friction welding on the entire cross section of the window frame aggregate through four-way vibration movement.

Claims (5)

In the apparatus for joining the ends of the selected plastic window frame aggregate (11, 12) by vibration welding, A pair of diaphragms (21, 22) provided with clamp means for fixing the plastic window frame aggregate (11, 12) and arranged on the same plane to enable circular motion; The eccentric holes 31b and 32b, which are connected to the pair of diaphragms 21 and 22, respectively, are formed on one axis line and are eccentrically positioned at the center of the concentric holes 31a and 32a. A pair of vibrators 31 and 32 having; A pair of eccentric cams 41 and 42 disposed at a position adjacent to the eccentric holes 31 b and 32 b of the pair of vibrators 31 and 32 and selectively coupled to and separated from the eccentric holes 31 b and 32 b according to the moving position. )and; A pair of alignment cams 51 and 52 disposed at a position adjacent to the concentric holes 31a and 32a of the pair of vibrators 31 and 32 and selectively coupled to and separated from the concentric holes 31a and 32a according to the moving position. ), The eccentric cams 41 and 42 and the alignment cams 51 and 52 are disposed on the output shaft of the driving motor 60, and the vibrators 31 and 32 are arranged along the operation direction of the actuator 70. 51, 42 or eccentric cam (41, 42) of the cut portion joining device of the plastic window frame aggregate using a four-way frictional motion, characterized in that coupled to any one pair. The method of claim 1, The actuator 70 is characterized in that the fixed end is connected to any one vibrator 31 and its moving end is connected to the other vibrator 32 through the arm 80, characterized in that the friction movement Cutting part joining device of the plastic window frame aggregate used. The method of claim 1, The alignment cam (51, 52) and the eccentric cam (41, 42) is a cutout joining device of the plastic window frame aggregate using a four-way frictional motion, characterized in that consisting of a conical shape. The method of claim 1, The diaphragm 21, 22 of the plastic window frame aggregate using the four-way friction movement, characterized in that the four-sided movement is supported by the upper and lower guide plate 81, and the front and rear guide plate 82 slidingly supported on the upper and lower guide plate 81. Cut joint device. In the method for joining the ends of the selected plastic window frame aggregate (11, 12) by vibration welding, A pair of eccentric cams 41 and 42 and alignment cams 51 and 52 are arranged on the output shaft of the drive motor 60, respectively. Between the pair of eccentric cams (41, 42) and the alignment cams (51, 52) is arranged a vibrator (31, 32) connected to the diaphragm (21, 22) in which the window frame aggregate is clamped, The vibrators 31 and 32 are coupled to the alignment cams 51 and 52 so that the end faces of the window frame aggregates 11 and 12 clamped to the diaphragms 21 and 22 are brought into close contact with each other. Depart from the alignment cams (51, 52) and coupled to the eccentric cam (41, 42), By rotating the output shaft 62 of the drive motor 60, friction vibration welding is performed on the cross sections of the window frame aggregates 11 and 12 in conjunction with the four-way movement of the vibrators 21 and 22. Method of joining the cut portion of plastic window frame aggregate.

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