KR20030052133A - Apparatus for changing and fixing the welding wheels of strip seam welding machine - Google Patents

Abstract

PURPOSE: An apparatus for changing wheels of strip seam welding machine is provided to improve operating rate of the welding machine by extremely easily performing change operation according to wear of the wheels of the welding machine using transfer car on which wheels of the welding machine are mounted. CONSTITUTION: The apparatus comprises an apparatus moving part(140) comprising a transfer car(13) on both sides of which fixing groove(107) for welding wheels is formed as the transfer car(13) is slid along an inclination plane formed on the lower surface of a welding machine main body(226), and a transfer car driving cylinder(46) axially fixed to the lower surface of the transfer car(13) and fixed to the lower surface of the welding machine main body(226); and a welding wheel grip part(150) comprising a supporting disk fixed to the upper surface of both sides of the transfer car(13) composing the apparatus moving part(140), a rotation disk which is movably connected to the inner surface of the supporting disk, and on the outer circumferential surface of which gear(5) is formed, a fixed disk(17) to which the supporting disk and rotation disk are axially connected, a gripper(3) which is fixed to a plurality of guiding pins(2) inserted into straight guiding groove of the supporting disk and curved guiding groove of the rotation disk, and which is guided by a fixed guide formed on the outer circumferential surface of the fixed disk(17), and a driving transfer car(7) on the upper surface of both sides of which a rack gear(6) connected to a gear(5) on the outer circumferential surface of the rotation disk is formed, and which is connected to driving transfer car driving cylinder so that the driving transfer car(7) is slid on the upper surface of the transfer car.

Description

Wheel fixing and replacement device for strip seam welding machine {APPARATUS FOR CHANGING AND FIXING THE WELDING WHEELS OF STRIP SEAM WELDING MACHINE}

The present invention relates to a wheel fixing and replacing apparatus of a strip seam welder, and more particularly, to a welder for welding a seam in a width direction to perform a continuous process of strips. The wheel of the strip seam welder, which makes it possible to improve the operation rate of the welder by using the moving cart equipped with the wheel of the welder which touches the part and performs the actual welding work. It relates to a fixing and replacement device.

In general, in the manufacturing process of the strip, a number of continuous operations such as rolling, plating, surface treatment and processing are performed. In order to perform the continuous process of the strip, seam welding for continuously connecting the strip coils is performed. Seam welding operations of such strips are usually used in the case of strips having a small width, and seaming operations of such strips are schematically illustrated in FIG.

That is, as shown in FIG. 1, the strip S of the coiled coil 110 that is unwound from the Pay Off Reel 100 is transferred as a pinch roll 130 on the table 120. The welding wheel 210 of the welder 200 installed at one side of the table 120 welds the seam S 'portion of the strip S to perform a continuous strip process.

Meanwhile, as shown in FIGS. 2 and 3, the welder 200 as described above has a driving wheel 224 installed at the bottom of the screw shaft 222 which is laid out between the base 220 on both sides of the base 220. The welding main body 226 moving along the central support 228 is bound so that the welding main body 226 moves left and right when the screw shaft 222 is rotated, and is vertically installed on both sides of the welding main body 226. The welding wheel 210 is coupled to the nut 234 ′ by the fixing bolt 234 penetrated through the movable block 232 installed at the lower portion of the air cylinder 230.

Therefore, in the conventional welder 200 as described above, as the welding cylinder 210 moves up and down as the air cylinder 230 of the main body 236 operates, the strip S seam welding on the table 120 is performed. And, the welding wheel 210 is to adjust the lowering width by the stopper 236 installed on both sides of the body 236.

However, in the conventional welder, in particular, the welder wheel as described above, when the seam welding of the strip is continuously performed, the welding wheel 210 is worn by the friction between the welding wheel 210 and the strip S. 210 is to be replaced periodically, as shown in Figure 3, because the fixing bolt 234 and the nut 234 'is fixed to both sides of the main body 236, the operator at the time of disassembly of the welding wheel 210 once The dismantled nut 234 ′ in a narrow space in the state of holding the wheel 210 by hand is extremely delayed in the replacement of the welding wheel 210.

As a result, the stopping of the welding machine for the replacement of the welding wheel 210 is continued, which delays the seam welding of the strip and lowers the overall productivity, in particular, when the worker manually drops the wheel when the welding wheel 210 is replaced. There is a risk of frequent equipment damage and safety accidents caused by workers.

In order to solve the above problems, the present invention uses a mobile trolley equipped with a wheel of the welder to perform a substantial welding process in contact with the seam portion of the strip, so that the replacement operation according to the wheel wear of the welder is extremely easy to perform. It is an object of the present invention to provide a wheel replacement device for a strip seam welder to improve the operation of the welder.

1 is a schematic perspective view of a typical strip welder;

Figure 2 is a side view of the main portion showing the operating state of a conventional strip welder;

3 is a schematic front view showing an operating state of a conventional strip welder;

4 is a front view showing a wheel fixing and replacing apparatus of the strip seam welder according to the present invention;

Figure 5 is an enlarged front view showing the main structure of the wheel fixing and replacing device of the strip seam welder according to the present invention.

Figure 6 is an enlarged perspective view of the main portion of the wheel fixing and replacing device of the strip seam welder according to the present invention;

Figure 7 is an enlarged exploded perspective view of the main portion of the wheel fixing and replacing device of the strip seam welder according to the present invention;

8 is an enlarged perspective view showing the configuration of the wheel fixing and replacing apparatus of the strip seam welder according to the present invention;

Figure 9 is a schematic side view showing the operating state of the wheel fixing and replacing apparatus of the strip seam welder according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

2,2 ': Induction pin 3,3': Gripper 4,4 ': Grips groove 5: Round gear 6: Rack gear

7: Driving cart 10: Fixed bar 11: Driving cart cylinder 12: Moving wheel

13: Moving cart 14, 14 ': Curved guide groove 15: Fixed pin 17: Fixed disc

18: Up-and-down driving cylinder 20: Welding wheel 91: Rotary disk 92: Paper support plate

93: engaging jaw 94,94 ': inclined surface 95: straight guide groove 97,97': fixed protrusion

61: Fixed guide 60: Square groove 44: Square groove 46: Moving cart drive cylinder

205: grip disc 226: welder body 109: stopper 107: welding wheel fixing groove

108: support plate fixing groove

In order to achieve the above object, the present invention is a sliding bogie formed on both sides while sliding the inclined surface formed on the lower surface of the welder body, and the shaft fixed to the lower surface thereof and fixed to the lower surface of the welder body A device moving part comprising a moving cart drive cylinder, a support disk fixed to both upper surfaces of the moving cart constituting the device moving part, a rotating disk having a gear formed on an outer circumferential surface thereof so as to be movable on its inner surface, and the support It is guided by a fixed guide formed on the outer surface of the fixed disk while being fixed to the fixed disk and the disk and the rotating disk is coupled to a plurality of guide pins inserted into the linear guide groove of the support disk and the curved guide groove of the rotating disk A gripper and a rack gear that are gear-coupled with an outer circumferential gear of the rotating disc are formed on both upper surfaces of the movable table. Of the strip thereby providing the seam-welding wheel fixing and replacing the device being configured to weld the grip wheel comprising a drive coupled to the balance with the drive bogie the drive cylinder to slide the top surface.

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

Figure 4 is a front view showing a wheel fixing and replacing device of the strip seam welder according to the present invention, Figure 5 is an enlarged front view showing the main structure of the wheel fixing and replacing device of the strip seam welder according to the present invention, Figure 6 Is an enlarged perspective view of a main portion of the wheel fixing and replacing device of the strip seam welding machine according to the present invention, Figure 7 is an enlarged exploded perspective view of the main portion of the wheel fixing and replacing device of the strip seam welding machine according to the present invention, Figure 8 is It is an enlarged perspective view which shows the structure of the wheel fixing and replacing apparatus of the strip seam welding machine.

4 to 8, the wheel fixing and replacing apparatus of the strip seam welder according to the present invention is largely composed of the device moving unit 140 and the welding wheel grip 150.

The welding wheel grip 150 is fixed to the left and right welding wheels 20, separated from the welding wheels 20 for replacement, and then seated on the moving cart 13 and passlines along the inclined surfaces (94, 94 '). It is configured to move out, the welding wheel 20 has a hexagon groove (60A) for inserting a plurality of grip grooves (4, 4 ') and a square groove (60) and the groove for inserting the fixing projection (97) 98 98 '), respectively.

The fixing bolt 32 is inserted into and fixed in the moving block 34, and fixed and welded to be perpendicular to the grip disc 205 having the inclined surface 206 at the edge at the center of the fixing bolt 32. ) Is sequentially fastened, a plurality of curved guide grooves (14, 14 ') are drilled in the rotation disc 91 from the inside to the edge direction, and through-type 96 for fixing the fixing bolt (1) in the center This configuration is fixed to the fixing bolt (1) not to fall by the fixing pin (15).

A circular gear 5 engaging with the rack gear 6 is partially processed at the lower end of the rotating disc 91, and the supporting disc 92 has a through hole 96 and curved guide grooves 14 and 14 ′. A plurality of linear guide grooves 95 are machined to be matched, and welded to the top of the fixed disk 17 at fixed points 61 are divided at an angle of 120 degrees, and here grippers (3,3 ') are provided. ) Is inserted to reciprocate.

Guide pins 2 and 2 'are welded on the grippers 3 and 3', and a locking jaw 93 for holding the grip disc 205 is formed at a predetermined angle at the end thereof, and the nut machining part 204 ) Is formed at the center of the fixed disk 17, the screw processing portion 16 of the fixing bolt 1 is fitted and fastened, and the square groove 60 taking the square groove 60 is at the lower end of the fixed disk 17 A square key 8 is inserted into the square groove 60 inserted into the hexagonal groove 60A and assembled into the hexagonal groove 60A.

In the outer circumference of the stationary disk 17, the fixing protrusions 97 and 97 'protrude downwardly at a 180-degree point and are inserted into the recesses 98 and 98'.

Meanwhile, the moving trolley 13 constituting the device moving unit 140 for moving the welding wheel grip unit 150 having the above-described configuration is seated on the inclined surface 94 and moved forward and backward by the moving trolley driving cylinder 46. .

On the upper surface of the moving trolley 13, a driving trolley 7 which is moved forward and backward by another driving cylinder 11 is configured.

Stoppers 109 are formed at both sides of the moving cart 13, and the fixing groove 107 for seating the wheel 20 is processed.

On both sides of the drive bogie 7 constituting the welding wheel grip 150, a support disc 92 seating fixing groove 108 is processed, and inside the fixing groove 108, a circular machined bottom portion of the rotating disc 91 is processed. The rack gear 6 which meshes with the gear 5 is comprised.

The drive bogie 7 is advanced back and forth by a drive bogie drive cylinder 11 fixedly positioned above the mobile bogie 13.

The cylinder rod of the drive bogie drive cylinder 11 is fastened to the fixed bar by a connecting rod and the fixed bar is fixedly welded to the bottom of the drive bogie 7.

Hereinafter, the effect | action of this invention comprised as mentioned above is demonstrated in detail.

Figure 9 is a schematic side view showing the operating state of the wheel fixing and replacing apparatus of the strip seam welder according to the present invention.

As shown in FIG. 9, in order to replace due to breakage or wear during use of the welding wheel 20, first, the driving motor 160 is rotated in reverse to position the welder 200 on both sides of the base 220 ′, and then the apparatus moves. The moving cart 13 constituting the part 140 operates the moving cart driving cylinder 46 to approach the lower end of the wheel 20.

At this time, the rack gear 6 and the circular disk 5 of the rotating disc 91 are kept in engagement.

Subsequently, when the driving cart drive cylinder 11 constituting the welding wheel grip part 150 is operated to move the driving cart 7 backward, the rotating disc 91 engaged with the rack gear 6 rotates in a clockwise direction and is curved induction grooves. Guide pins (2, 2 ') inserted into (14, 14') are pushed out to push the gripper (3, 3 '), at this time the holding jaw 93 of the gripper (3, 3') is held The grip disc 205 was placed.

The fixing bolt 1 is fixed to the rotating disc 91 by the fixing pin 15 and is rotated so that the fixing bolt 1 is unscrewed in the nut processing part 204.

As the rotary disk 91 is rotated in the clockwise direction as described above, the fixing bolt 1 is separated from the nut processing portion 204, and in the state where the grip disk 205 held by the grippers 3 and 3 'is placed, When the fixing bolt 32 is pulled, the square key 8 of the fixing bolt 32 is separated from the square groove 60 so that the welding wheel 20 is seated in the welding wheel fixing groove 107.

Subsequently, when the moving cart drive cylinder 46 constituting the device moving unit 140 is pulled, the moving cart 13 moves downward along the inclined surfaces 94 and 49 'and at the same time, the welding wheel 20 from the welder 200. This is to be separated.

On the other hand, in order to couple the preliminary welding wheel 20 in the welder 200, after replacing the damaged welding wheel 20 by pushing the moving cart 13, the fixing bolt 32 and the hexagonal groove (60A) of the welder 200 side Stop at the point where

Subsequently, when the fixing bolt 32 is pushed in, the square key 8 is fitted in the square groove 60, and at the same time, the grip disc 205 is in close contact with the wheel 20.

Subsequently, when the driving cart 7 located in the reverse direction is pulled, the rotating disc 91 is rotated counterclockwise by the circular gear 5 engaged with the rack gear 6, as shown in Figs. As the grippers (3, 3 ') that have been discarded are narrowed, the locking jaw (93) holds the grip disc (205) so as not to be detached.

Since the fixing bolt 1 is rotated by the rotating disc 91, the screw processing part 16 is inserted into the nut processing part 204 and tightened.

Subsequently, when the pulled moving trolley 13 is pulled, the moving trolley 13 is pulled out along the inclined surfaces 94 and 94 ', and the rack gear 6 and the circular gear 5 which are engaged are separated.

As such, the present invention is extremely easy and safe to perform the replacement work of the welder wheel 20 for performing seam welding of the strip.

As described above, the present invention uses a mobile trolley equipped with a wheel of a welder that contacts the seam of the strip to perform a substantial welding operation, so that the replacement operation according to the wheel wear of the welder can be performed very easily, thereby enabling the operation rate of the welder. The operator does not need to tighten the operation in the narrow space of the main body of the welder, thereby preventing safety accidents such as stenosis of the worker that occurs during the replacement of the welding wheel and equipment damage due to the falling wheel. It can have an excellent effect.

Claims (5)

A mobile trolley 13 having a welding wheel fixing groove 107 formed at both sides while sliding the inclined surface 94 formed on the lower surface of the welder main body 226, and being fixed to the lower surface of the welder body 226, the lower surface of the welder main body 226. A device moving part (140) comprising a moving cart drive cylinder (46) fixed to the vehicle; A support disc 92 fixed to both upper surfaces of the moving trolley 13 constituting the apparatus moving unit, a rotation disc 91 having a gear 5 formed on an outer circumferential surface thereof so as to be movable on the inner side thereof; The support disk 92 and the rotation disk 91 is axially coupled to the fixed disk 17, the linear guide groove 95 of the support disk 92 and the curved guide groove 14 of the rotation disk 91 is inserted And a gripper (3) guided by a fixing guide (61) formed on an outer surface of the fixed disk (17) while being fixed to a plurality of induction pins (2), and an outer peripheral gear (5) of the rotating disk (91) and Welding wheel grip part 150 formed of a drive gear 7 coupled to a drive bogie drive cylinder 11 so as to slide on an upper surface of the mobile bogie 13 while rack gears 6 that are gear-coupled are formed on both upper surfaces thereof. Wheel fixing and replacing device of the strip seam welder, characterized in that consisting of. The method of claim 1, Gripper (3) constituting the welding wheel grip portion 150 is a wheel fixing and replacing device of the strip seam welder, characterized in that installed at intervals of an angle of 120 degrees in the circumferential direction. The method of claim 1, Strip seam welder, characterized in that a pair of fixing projections (97,97 ') is formed on the inner side of the fixed disk 17 constituting the welding wheel grip portion 150 to fix the welding wheel (20). Wheel fixing and replacement. The method of claim 1, The support disk (92) constituting the welding wheel grip portion 150 is a wheel fixing and replacing device of the strip seam welder, characterized in that the linear guide groove (95) is formed at intervals of 120 degrees in the circumferential direction. The method of claim 1, Rotating disk 91 constituting the welding wheel grip portion 150 is a wheel guide and fixing device of the strip seam welder, characterized in that the curved guide groove 14 is formed at intervals of 120 degrees in the circumferential direction.