KR100825946B1 - Sealing apparatus for wide plastic band - Google Patents

Abstract

The present invention relates to a wide plastic band sealing device that can be bonded to a wide plastic band of 25mm or more by using a conventional motor, in a wide plastic band sealing device for bonding a wide plastic band having a width of 25mm or more by frictional heat, the housing ; An eccentric shaft supported at both ends by the housing; The connecting rod and the front surface connected to the eccentric shaft is formed to protrude a hinge that is connected to the connecting rod, and the technical gist comprises a oscillator for generating friction heat by high-speed vibration at the junction of the wide plastic band, It is possible to join a wide plastic band without replacing the existing motor of a large capacity, and to reduce the maintenance cost burden due to the wear of the bearing.

Plastic band, PET band, bonding device, automatic packaging device

Description

Sealing apparatus for wide plastic band

1 is a perspective view of a conventional plastic band sealing device,

2 is an eccentric shaft perspective view of a conventional plastic band sealing device,

Figure 3 is a perspective view of the oscillator and connecting rod of the conventional plastic band sealing device,

4 is a perspective view of a plastic band sealing device according to the present invention,

5 is an eccentric shaft perspective view of the plastic band sealing device according to the present invention,

Figure 6 is an oscillator and connecting rod of the plastic band sealing device according to the present invention

 Perspective view.

*** Explanation of symbols for the main parts of the drawing ***

400: wide plastic band sealing device 410: housing

430 oscillator 431 hinge

433: cylindrical bearing 435: carbon slide flat bearing

450: connecting rod 470: eccentric shaft

471: central axis 473: eccentric body

491: Oscillator Stand 493: Oscillator Guide

The present invention relates to a wide plastic band sealing device, and more particularly, to a wide plastic band sealing device capable of sealing a wide plastic band of 25 mm or more using a conventional small capacity motor.

In general, a thin plate sealing device for sealing a thin plate uses a steel band having a width of 25 mm or 32 mm. In the case of a thin plate banded with a steel band, a steel band made of the same material as the thin plate is inserted into the thin plate during transfer. Frequent occurrences of scratches.

Therefore, in order to improve the problems of the conventional steel band packaging, a plastic band sealing device using a plastic band such as polyester (polyester, PET: polyethylen terephthalate) has been proposed.

1 is a perspective view of a conventional plastic band sealing device.

As shown in FIG. 1, the conventional plastic band sealing device 100 includes a housing 110; An eccentric shaft 170 supported by one side of the housing 110 and rotating by a motor (not shown); The connecting rod 150 connected to the eccentric shaft 170 and the connecting rod 150 is hinged, and comprises an oscillator 130 that generates friction heat at the junction of the plastic band.

At this time, the above-mentioned plastic band is achieved by a general plastic band having a width of 18.5 mm or less, and the motor is achieved by a motor having a capacity of 0.37 KW or more.

2 is a perspective view of an eccentric shaft of a conventional plastic band sealing device, which is achieved by a central shaft 171 and an eccentric body 173 formed at one end of the central shaft 171, and the other end of the central shaft 171 is a housing ( 110 is supported.

3 is a perspective view of an oscillator and a connecting rod of a conventional plastic band sealing device, the connecting rod 150 connected to the eccentric shaft 170 is hinged to the inside of the oscillator 130, guides on both sides of the oscillator 130 The needle bearing 131 is installed to reduce friction with the 193. In addition, a needle bearing 133 is installed on the bottom surface of the oscillator 130 to reduce friction with the oscillator support 191.

Accordingly, when the motor connected to the eccentric shaft 170 is operated in a state in which the junction portion of the plastic band to be bonded is located on the oscillator 130, the oscillator 130 connected to the eccentric shaft 170 and the connecting rod 150 is operated. When the linear movement, the oscillator 130 is a linear movement, the frictional heat is generated at the junction of the plastic band in contact with the oscillator 130 is joined to the junction.

On the other hand, the plastic band used is a band having a width of 18.5mm, less than the width of 25mm, such as a steel band to replace the steel band should use a wide plastic band of 25mm or more.

However, according to the conventional plastic band sealing device 100, only a plastic band having a width of 18.5 mm or less may be used due to the capacity limitation of the motor used, and a higher capacity may be used to use a plastic band having a width of 18.5 mm or more. The motor having a bar should be installed, the use of a large-capacity motor has a problem that the volume of the plastic band sealing device increases, the purchase cost of the plastic band sealing device increases.

In addition, according to the oscillator in which the needle bearings are installed, the needle bearings and the guides are easily worn due to the friction between the needle bearings and the guides, and there is a problem in that replacement costs are frequently caused due to poor compression due to poor compression.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and supports both ends of the eccentric shaft to the housing, and reduces the load of the motor by reducing the length of the connecting rod, so that a wide plastic band can be used as a conventional small capacity motor. The object is to provide a plastic band sealing device.

Another object of the present invention is to provide a wide plastic band sealing device that can reduce the frictional resistance of the contact portion and reduce the replacement cost due to wear of the needle bearing and guide by providing a cylindrical bearing and a carbon slide plate bearing instead of the needle bearing. There is this.

A wide plastic band sealing device for achieving the above object is a wide plastic band sealing device for bonding a wide plastic band having a width of 25mm or more by frictional heat, comprising: a housing; An eccentric shaft supported at both ends by the housing; The connecting rod and the front surface connected to the eccentric shaft are formed to protrude a hinge connected to the connecting rod, and comprises an oscillator for generating frictional heat at the junction of the wide plastic band.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the wide plastic band sealing device of the present invention.

4 is a perspective view of a plastic band sealing device according to the present invention.

As shown in FIG. 4, the plastic band sealing device 400 includes a housing 410; An eccentric shaft 470 supported on both sides of the housing 410 and rotating by a motor (not shown); A connecting rod 450 connected to the eccentric shaft 470 and a front surface of the hinge 431 connected to the connecting rod 450 are formed to protrude, and includes an oscillator 430 that generates friction heat at the junction of the wide plastic band. Is done.

Accordingly, when the motor connected to the eccentric shaft 470 is operated while the junction portion of the plastic band to be bonded is located on the oscillator 430, the oscillator 430 connected to the eccentric shaft 470 and the connecting rod 450 is connected. At the same time, the high-speed reciprocating linear motion is performed, and when the band grip plate mounted on the upper part of the oscillator 430 bites the band and performs the high-speed reciprocating linear motion, frictional heat is generated at the joint portion of the plastic band that is in contact with the oscillator 430. To be bonded.

At this time, the above-mentioned plastic band is achieved by a general plastic band having a width of 25 mm to 32 mm, and the motor is achieved by a general small capacity motor having a capacity of about 0.37 KW.

5 is an eccentric shaft perspective view of the plastic band sealing device according to the present invention.

As shown in FIG. 5, the eccentric shaft 470 of the plastic band sealing device 400 according to the present invention is achieved by an eccentric body 473 formed at the end of the central shaft 471 and the concentric shaft 471, Both ends are supported at both sides of the housing 410.

Therefore, as in the conventional eccentric shaft 170, only one side is supported and does not receive a load according to the principle of the straddle or seesaw, which is generated by being biased on the motor side, and at one side because the eccentric shaft 470 supports the housing 410 on both sides. Compared with the conventional eccentric shaft 170, which is supported, the swing is less and the load on the motor is reduced.

In addition, since the bearings can be provided at both ends of the eccentric shaft 470, smoother rotation is possible.

Therefore, even a small motor can be bonded to the band 25mm ~ 32mm, thereby replacing the steel band.

Figure 6 is an exploded perspective view of the oscillator and connecting rod of the plastic band sealing device according to the present invention.

As shown in FIG. 6, a hinge 431 coupled to the connecting rod 450 protrudes from the front surface of the oscillator 430 of the plastic band sealing device according to the present invention, and the oscillator 430 is formed inside the oscillator 430. Cylindrical bearing 433 is installed to be exposed to the side to reduce the friction with the guide 493 located on both sides of the (430). In particular, the bottom surface of the oscillator 430 is provided with a carbon slide plate bearing 435 to reduce friction with the oscillator support 491.

In the above-described configuration, the cylindrical bearing 433 can be installed inside the oscillator 430 due to the protruding structure of the hinge 431. When the cylindrical bearing 433 is used, a plurality of contact portions with the oscillator guide 493 are provided. The number of needle bearings 131 is reduced compared to the use of the two needle bearings 131, thereby reducing the maintenance cost of the device because the wear of the oscillator guide 493 can be reduced.

Furthermore, the use of the carbon slide plate bearing 435 can reduce the maintenance cost of the device because it can reduce the wear of the oscillator pedestal 491, which is a disadvantage of the needle bearing 133, while maintaining the lubrication degree of the needle bearing 133. Play a role.

On the other hand, as the length of the connecting rod 450 is shortened due to the protrusion of the hinge 431, compared to the conventional connecting rod 150, which has a long length, the loss of the power transmission of the motor can be reduced, thereby reducing the load of the motor. do.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order to better understand the claims of the invention which will be described later. Additional features and advantages constituting the claims of the present invention will be described below. It should be appreciated by those skilled in the art that the conception and specific embodiments of the invention disclosed may be readily used as a basis for designing or modifying other structures for carrying out similar purposes to the invention.

In addition, the concept and embodiment of the invention disclosed in the present invention as examples for such modification or altered equivalent structure by those skilled in the art as a basis for modifying or designing to other structures for carrying out the same purposes of the present invention. For example, the gear and chain sets, which are the power transmission means, may be changed into pulleys and belt sets, and various changes, substitutions, and changes can be made without departing from the spirit or scope of the invention described in the claims.

According to the wide plastic band sealing device of the present invention as described above, by supporting the eccentric shaft connected to the motor on both sides of the housing to reduce the load of the motor, a wide plastic band without replacing the conventional low capacity motor with a large capacity There is an effect that can be bonded.

In addition, by connecting the connecting rods that were coupled inside the oscillator to the outside of the oscillator, it is possible to reduce the load of the motor as the length of the connecting rods becomes short, so that a wide plastic band can be replaced without replacing the existing low-capacity motors with large capacity. There is an effect that can be bonded.

In addition, the connecting rod coupled inside the oscillator is coupled to the outside of the oscillator, so that the cylindrical bearing can be installed inside the oscillator, thereby reducing wear of the guide supporting the oscillator, thereby reducing maintenance costs.

In addition, by providing a long-life carbon slide plate bearing on the bottom of the oscillator, it is possible to reduce wear of the oscillator bearing supporting the oscillator, thereby reducing the maintenance cost, and uniformly compressing the band, thereby providing uniform adhesive strength.

Claims (4)

delete In the wide plastic band sealing device for joining the wide plastic band by frictional heat, housing; An eccentric shaft supported at both ends by the housing; A connecting rod connected to the eccentric shaft; And A hinge is formed on the front surface and is connected to the connecting rod, and includes an oscillator for generating frictional heat at the junction of the wide plastic band. The oscillator is a wide plastic band sealing device, characterized in that the cylindrical bearing is installed to be expressed to the side of the oscillator. The method of claim 2, Wide plastic band sealing device characterized in that the bottom surface of the oscillator is provided with a carbon slide plate bearing. In the wide plastic band sealing device for joining the wide plastic band by frictional heat, housing; An eccentric shaft supported at both ends by the housing; A connecting rod connected to the eccentric shaft; And A hinge is formed on the front surface and is connected to the connecting rod, and includes an oscillator for generating frictional heat at the junction of the wide plastic band. Wide plastic band sealing device characterized in that the bottom surface of the oscillator is provided with a carbon slide plate bearing.

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