KR100397155B1 - chucking device for fusion-welding device of neck - Google Patents

Abstract

The present invention relates to a chucking device for a neck fusion device for welding a neck formed of a cylindrical hollow tube to a funnel, the chucking device being inserted into the neck to chuck the neck and having a stopper for limiting the insertion depth. And a neck holder positioned below the chucking member at a predetermined distance to support a lower end of the neck chucked by the chucking member, a holder support for supporting the neck holder, and between the neck holder and the holder support. It characterized in that it comprises an elastic member which is interposed to allow the elastic movement of the neck holder in the vertical direction when the neck is pressed downward by the chucking member. As a result, the neck can be easily and effectively chucked, and the neck can be brought into close contact with the stopper of the chucking member.

Description

Chucking device for fusion-welding device of neck

The present invention relates to a chucking device for a neck fusion device, and more particularly, to a neck fusion device for not only easily and effectively chucking a neck, but also allowing the neck to come into close contact with a stopper of a chucking member. It relates to a chucking device.

Generally, a cathode ray tube is provided in front of the panel on which an image is projected, a funnel shape in which funnels are formed, and a funnel bonded to the rear of the panel by pleat sealing, and a neck bonded to the rear side of the funnel by pressure welding. Has

Necks are generally classified into two types: a collar formed of a cylindrical hollow tube and a flare having a funnel portion enlarged at an end of the hollow tube, and the rear of the funnel using the latter flank. In the case of joining to the mother part, the funnel part is cut after the joining. In the past, the latter flank was mainly used.

7 is a view schematically illustrating a fusion process between a neck and a funnel according to the related art. As shown in this figure, the process of press-fusion welding the neck 110, the funnel portion 111 is formed on the rear surface of the funnel 112 disposed on the funnel mounting portion 116, first, Cut the length and arrange the neck 110 in the coaxial line to the cut portion 114, the cutting portion 114, and then the chucking device (not shown) to the cutting portion 114 is flame sprayed by the rotatable burner 130 ) Is made by pressing the neck 110 downward and then upwardly tensioning it again.

By the way, in the conventional chucking device for neck fusion splicing apparatus, when the neck fused to the rear portion of the funnel is a neck (flareless) having no funnel, that is, the neck (flareless) consisting of a cylindrical hollow tube There is a problem in that the conventional chucking device is not only able to chuck the neck, but when chucking with the conventional chucking device, there is a problem in that the total length of the funnel and the neck which are bonded to each other cannot be kept constant.

Accordingly, it is an object of the present invention to provide a chucking device for a neck fusion apparatus capable of easily and effectively chucking a neck (flareless) as well as allowing the neck to be in close contact with a stopper of a chucking member.

1 is a side view of a typical neck fusion device,

2 to 4 is an operating state of the chucking device for neck fusion apparatus according to the present invention,

5 is an enlarged cross-sectional view of the main part of FIG. 3;

6 is an enlarged cross-sectional view of the main part of FIG. 5;

7 is a view schematically illustrating a fusion process between a neck and a funnel according to the related art.

* Explanation of symbols for the main parts of the drawings

10: neck 12: funnel

24: lifting portion 34: chucking member

46: neck holder 51: holder support

The object of the present invention is a chucking device for a neck fusion apparatus for fusion welding a neck formed of a cylindrical hollow tube to a funnel, wherein the neck is inserted into the neck to chuck the neck and has a stopper for limiting the insertion depth. A liftable chucking member, a neck holder positioned at a predetermined distance below the chucking member, a neck holder supporting a neck chucked by the chucking member, a holder supporting part supporting the neck holder, the neck holder and the It is achieved by the chucking device for the neck fusion apparatus characterized in that it comprises an elastic member which is interposed between the holder support portion and allows the elastic movement of the neck holder in the vertical direction when the neck is pressed down by the chucking member.

Here, the holder support portion, the rotating shaft disposed in parallel with the lifting axis of the chucking member, the holder supporting arm arranged in the horizontal direction on the rotating shaft connecting the rotating shaft and the neck holder, and the rotating shaft It is preferable to include a rotating cylinder for rotating, and the rotating cylinder is advantageously disposed on the upper portion of the rotating shaft.

And, it is more effective that the elastic member is a coil spring.

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

1 is a side view of a typical neck fusion apparatus, Figures 2 to 4 is an operation state diagram of the chucking apparatus for a neck fusion apparatus according to the present invention. As shown in these figures, the neck fusion apparatus has a neck (coaxial line) having a coaxial line with the axis of the funnel stacking portion 16 on which the funnel 12 is stacked, and the funnel 12 stacking on the funnel stacking portion 16. 10) the neck 10 which transfers the neck 10 which moves the neck 10 conveyed by the neck conveyance part to the funnel 12, and the neck part 10 by the elevating part 24, In contact with the cut portion 14 of the funnel 12 has a burner 30 that heats the mutual contact area.

The column 18 is erected on one side of the funnel mounting portion 16, and the fixing portion 20 fixed in the radial direction with respect to the longitudinal direction of the column 18 is coupled to the edge surface of the column 18. . The fixed part 20 is provided with a vertical arm 22 which is extended in length, and a lifting part 24 which is moved up and down by the vertical arm 22 supplied with a working fluid is provided below the vertical arm 22. .

The lifting unit 24 is inserted into the neck 10 to chuck the neck 10, and is provided with a chucking member 34 which is lifted up and down in a vertical direction in the center area of the lifting unit 24. At the upper portion of the 34, a servomotor 26 for controlling the lifting height of the chucking member 34 is disposed. On the other hand, the edge surface of the elevating portion 24 is in the form of a rail block so as to drive up and down by engaging with each other in the dovetail shape with respect to the rail formed on the edge surface side of the column 18, the elevating portion 24 is the neck 10 and the funnel The burner drive part 28 which drives the burner 30 which heats the contact area of 12 is rotated. The burner support part 32 which supports the burner 30 is provided between the burner drive part 28 and the burner 30. As shown in FIG.

The chucking member 34 is disposed so as to stand up in the axial direction and is capable of lifting up and down along the up and down direction, and a stopper 38 that contacts the upper end of the neck 10 to prevent upward movement of the neck 10. ), The release prevention ring 40 for holding the stopper 38 at the upper portion thereof, the slider 44 which flows up and down within a predetermined height in conjunction with the upward movement of the pushing rod 42, and a trapezoidal cross-sectional shape. And a plurality of expansion protrusions 36 disposed between the sliders 44 and moved by upward movement of the sliders 44 to be held in close contact with the inner wall surface of the neck 10 to chuck the neck 10.

Meanwhile, as shown in FIGS. 5 and 6, the neck holder is located at the lower end of the neck 10 when the neck 10 is chucked by the chucking member 34 in the lower rotation plane of the neck 10. The 46 and the holder support part 51 are provided.

The neck holder 46 in which the lower end of the neck 10 is in contact with each other has an inverted cross-sectional shape, and a cylindrical bush 60 is provided on the outer circumferential surface of the neck holder 46. In addition, a spring accommodating part 62 is formed on an outer wall surface of the cylindrical bush 60, and a coil spring 46 is formed in the spring accommodating part 62 so that the neck holder 46 may flow along a predetermined vertical direction. 58).

The holder support part 51 for supporting the neck holder 46 is disposed in parallel with the chucking member 34 while being spaced apart from the chucking member 34 by a predetermined distance to rotate the neck holder 46 in a predetermined plane of rotation. Rotating cylinder 52, a rotary cylinder 56 connected to the upper portion of the rotating shaft 52 by a connecting bush 54 to rotate the rotating shaft 52 in the forward and reverse directions, the rotating shaft 52 and the neck holder It has a holder support arm 48 which is arrange | positioned transversely with respect to the axial direction of the rotation shaft 52 between 46, and rotates the neck holder 46 by the rotation power of the rotation shaft 52. As shown in FIG. In the end region of the holder support arm 48 facing the pivot shaft 52, an insertion portion 50 for engaging the pivot shaft 52 is formed.

2 to 4, the operation of the chucking device for the neck fusion apparatus according to the present invention is explained as follows.

First, when the funnel 12, which is cut by a certain length, is transferred to the neck fusion apparatus, a working fluid is supplied to the rotating cylinder 56 disposed on one side of the chucking member 34, and the rotating cylinder 56 is The neck holder 46 is positioned below the coaxial line of the chucking member 34 by rotating the rotation shaft 52 within a predetermined angle range.

When the neck holder 46 is positioned below the chucking member 34, the neck 10 is positioned coaxially above the cut portion 14 of the funnel 12, that is, on the neck holder 46 by the neck transfer unit. Will be placed in.

As such, when the arrangement of the neck 10 and the neck holder 46 is completed, the lifting portion 24 is also lowered by a predetermined distance by the downward movement of the vertical arm 22, whereby the chucking member 34 is the neck ( It is inserted into the inside of 10) to chuck the neck (10). At this time, since the neck holder 46 which suppresses the downward movement of the neck 10 is disposed at the lower end of the neck 10, the neck 10 is no longer downwardly moved at the position of the neck holder 46 and chucking. The member 34 can be easily inserted into the neck 10 as well as the stopper 38 of the chucking member 34 can be completely in contact with the upper end of the neck 10. Here, the coil spring 58 located outside of the neck holder 46 allows vibration of the neck holder in the vertical direction to some extent, which is caused by the downward movement of the chucking member 34 by the lifting unit 24. This is to prevent the lower end of 10) from being broken in the neck holder 46.

When the stopper 38 of the chucking member 34 is brought into close contact with the upper end surface of the neck 10 (as shown in FIG. 5A), the pushing rod 42 in the chucking member 34 moves upward. While the slider 44 flows upward, thereby expanding the inclined projections 36 in contact with the slider 44 inclined mutually in close contact with the inner wall surface of the neck 10 while inflating radially relative to the pushing rod 42. Will be. Accordingly, the chucking member 34 completely chucks the neck 10. As such, when the chucking of the neck 10 by the chucking member 34 is completed, that is, the stopper 38 of the chucking member 34 is kept in close contact with the upper end surface of the neck 10 and the expansion protrusion 36 is disposed. When the teeth are completely in contact with the inner wall surface of the neck 10, the lifting portion 24 rises a predetermined distance by the upward movement of the vertical arm 22, and the rotation cylinder 56 rotates in the opposite direction to the above. By rotating the 52, the neck holder 46 is returned to its original position.

When the neck holder 46 is returned to its original position, the neck 10 chucked to the chucking member 34 is lowered by the lifting portion 24 by the downward movement of the vertical arm 22 again. Pressed down by 14, and at the same time, fusion between the neck 10 and the funnel 12 is achieved by the injection of the flame by the burner 30 into the mutually contacting areas.

As such, in the present invention, when the chucking member 34 chucks the neck 10, the neck holder 46 can be easily and effectively chucked by disposing the neck holder 46 at the lower end of the neck 10. In addition, the stopper 38 of the chucking member 34 can be kept in close contact with the upper surface of the neck 10 so that the overall length between the interconnected neck 10 and the funnel 12 can also be kept constant. .

As described above, according to the present invention, there is provided a chucking device for a neck fusion apparatus, which not only can easily and effectively chuck the neck (flareless), but also allows the neck to be brought into close contact with the stopper of the chucking member.

Claims (4)

In the chucking device for neck fusion apparatus for fusion welding a neck formed of a cylindrical hollow tube to a funnel, A chucking member inserted into the neck to chuck the neck and vertically liftable with a stopper for limiting the insertion depth; A neck holder positioned below the chucking member and spaced apart from the chucking member to support a lower end of the neck chucked by the chucking member; A holder support for supporting the neck holder; A chucking device for a neck fusion device, characterized in that it is interposed between the neck holder and the holder support portion to allow an elastic movement of the neck holder in the vertical direction when the neck is pressed downward by the chucking member. . The method of claim 1, The holder support portion, A rotation shaft disposed in parallel with the lifting axis of the chucking member; A holder support arm disposed transversely to the pivot shaft to connect the pivot shaft and the neck holder; A chucking device for a neck fusion device comprising a rotating cylinder for rotating the pivot shaft. The method of claim 2, The rotary cylinder is a chucking device for a neck fusion device, characterized in that disposed on the upper portion of the rotation shaft. The method of claim 1, The elastic member is a chucking device for a neck fusion apparatus, characterized in that the coil spring.