KR101945224B1 - Spot welding apparatus for hanger production - Google Patents

Abstract

The present invention relates to a spot welding apparatus to make a hanger, capable of largely improving workability and productivity of a product. According to the present invention, the spot welding apparatus to make a hanger comprises: a first spot welding means including a first movable electrode unit electrically connected and installed to one body through an operating rod of a first pressing cylinder, and a first fixed electrode unit corresponding to the lower part of the first movable electrode unit; and a second spot welding means including a second movable electrode unit electrically connected and installed through an operating rod of a second pressing cylinder by being spaced apart from the first spot welding means and a second fixed electrode unit corresponding to the lower part of the second movable electrode unit.

Description

[0001] The present invention relates to a spot welding apparatus for hanger production,

The present invention relates to a spot welding apparatus for manufacturing a hanger, and more particularly, to a hanger for metal hanger which is detachably mountable on a product shelf (space wall) The present invention relates to a spot welding apparatus for manufacturing a hanger, which is capable of remarkably improving product productivity, quality, and workability by welding and bending a horizontal bar using a bracket and a bracket.

Generally, in the booths of department stores, large-sized marts, and various merchandise stores, a shelf for displaying merchandise or a hanger for displaying merchandise is used.

In the case of the above-mentioned display shelf, it is mostly used when arranging a predetermined shape, standardized products of large, medium, and small size in a row, or arranging them in a multi-layered arrangement, and when displaying a product using a display shelf A display panel having a product name and a price is provided on the front of the display shelf so that the customer can easily grasp the model name and the price of the product without having to look closely at the contents of the package or the product itself.

On the other hand, the merchandise display hanger is a product that can not be displayed on the display shelves, for example, a clothes item, a bag product, a belt, a necktie, or the like that is hung on a wall by using a hanger .

As shown in FIGS. 1 (a) and 1 (b), the hanger includes a hook for hanging a product and a bracket for attaching and detaching to and from a shelf attached by welding to an end of the hook, As shown in (c) and (d) of Fig.

The overall configuration and installation and use of such a hanger is disclosed in Korean Patent No. 10-0921616 (name: hanger having a display light bar, hereinafter referred to as "Patent Document 1") and Korean Patent No. 10-1271182 (Hereinafter referred to as " Patent Document 2 ") of a hanger mechanism for merchandise display.

In general, a hanger constituting a hanger is manufactured by bending a round bar made of a stainless steel material resistant to corrosion and bending the bracket with a press die. The stainless bar is cut into a predetermined length, (c) and (d).

In the above-described configurations, the hanger and the bracket are spot-welded through the spot welding device, and the hanger product is obtained by spot-welding the cross bar crosswise to the end side of the hanger hanger.

For reference, spot welding is a process of resistance welding in which a metal plate is superimposed and the tip of the electrode (electrode) is placed below the metal plate and the current and the pressing force are concentrated in a relatively small area, So that the operator can press the movable electrode downward to perform the welding operation.

In order to perform the spot welding as described above, the fixture is mounted on the jig provided on the movable electrode for applying pressure, and the spot welding is performed on the jig provided on the fixed electrode corresponding to the movable electrode while the bracket is mounted.

Spot welding is performed on the jig provided on the movable electrode of another spot welding apparatus by placing a bracket welded to the bracket and a jig provided on the corresponding fixed electrode with a horizontal bar on which the name is placed.

As described above, since the spot welding is respectively performed, the productivity of the product is low and the workability is remarkably low.

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is an object of the present invention to provide a hanger, a bracket, and a horizontal bar using a bracket to be welded and bent by a series of processes, And it is an object of the present invention to provide a spot welding apparatus for hanger production.

In order to achieve the above object, according to the present invention, there is provided a hanger according to one aspect of the present invention, comprising: a hook formed by bending a metal round bar into a U shape so as to hang a product; a bracket welded to one side of the hook, 1. A spot welding apparatus for welding together hanger hanger members cross-welded at one end so as to be detachably attached thereto,

The spot welding apparatus includes a first spot welding means including a first movable electrode portion electrically connected to one body through an operation rod of a first pressing cylinder and a first fixed electrode portion corresponding to a lower portion of the first movable electrode portion, A second movable electrode portion electrically connected to the first movable electrode portion through an operation rod of the second pressing cylinder so as to be spaced apart from the first spot welding means and a second fixed electrode portion corresponding to a lower portion of the second movable electrode portion, A first jig connected to the first movable electrode unit to temporarily fix the hook that is bent in the shape of a triangle, and a second jig that is connected to the first fixed electrode unit to temporarily suspend the bracket A third jig connected to the second fixed electrode unit to seize the horizontal bar for the name of the product, and a third jig provided on one side of the length of the third jig, A supply cylinder for transferring the horizontal bar supply bar and the horizontal bar one by one from the third jig to the position to be welded to the end of the hanger in the third jig and the operation rod of the second pressure cylinder provided with the second movable electrode, A pressing member which is mounted on the main body between the second jig and the third jig so as to be rotatable 360 degrees with respect to the operating rod, A first bending member that supports the length of the hook positioned between the first jig and the third jig and presses the hook in a direction in which the first jig is positioned after the welding is performed; And a second bending member for pressing the length side of the hook member to be bent to the first jig side.

The first jig according to the present invention includes: a seating groove formed on a front surface of a body connected to an operating rod of a first pressing cylinder and guiding one side of a hook bent in a C-shaped form; A fixing block protruding from the upper and lower portions of the fixing groove and the fixing groove, a fixing block guided by the fixing groove and guiding the vertical length of the hook which is fixed by the fixing screw and positioned in the mounting groove, And a semicircular right angle guiding groove formed at the outer side of the pressing electrode portion for guiding the lower portion of the bent hook to the second jig side and for guiding one side of the hook bent after welding is formed. do.

The second jig according to the present invention is characterized in that a groove for guiding the bracket and a guide protrusion for guiding and aligning the bracket are integrally provided on one side of the groove.

In the third jig according to the present invention, a semicircular support groove for seating at least one horizontal bar on the upper surface of the product name is formed on the upper surface, and a supply groove for supplying a horizontal bar from the side of the horizontal bar supply stand is formed in the support groove, A release preventing member for preventing the horizontal bar from being detached is attached to the end of the groove and the supply cylinder is attached to the opposite side to which the release preventing member is installed.

The first bending member according to the present invention is characterized in that the first bending member is composed of a presser bar having a plurality of support rollers that support the length of the bar, and a first hydraulic cylinder that operates the presser bar up and down.

The second bending member according to the present invention is characterized in that the second hydraulic cylinder is provided with a pressure roller which pushes the hook to be bent to the first jig side and presses the hook straightly.

In the spot welding apparatus for making a hanger according to the present invention, the spot welding of the hanger and the bracket in the first spot welding portion and the spot welding of the horizontal bar in the hanger portion are carried out simultaneously at the second spot welding portion, The hanger of the finished product can be removed from the spot welding device after the horizontal bar is bent in a state in which the heat conducted to the periphery remains, so that the hanger finished product can be manufactured by a series of spot welding operations and a bending operation of a part of the hanger Therefore, productivity as well as workability can be greatly improved.

1 (a) to 1 (d) are side views showing general hangers,
Fig. 2 is a perspective view showing the hanger shown in Fig. 1 (d)
3 is a front view showing a spot welding apparatus for making a hanger according to the present invention,
4 and 5 are partial perspective views showing a state in which a bracket and a bracket are seated and applied to a spot welding apparatus according to the present invention,
FIG. 6 is a perspective view of a spot welding apparatus according to the present invention,
FIG. 7 to FIG. 10 are front views showing welding of the hanger and the bracket to the first spot welded portion of the spot welding apparatus according to the present invention and a bent state of the hanger,
11 is a front view sequentially showing a state in which a horizontal bar is welded to a second spot welded portion of the spot welding apparatus according to the present invention,
12 is a perspective view illustrating a state where the hanger is taken out through the spot welding apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

A spot welding apparatus for making a hanger according to the present invention will be described with reference to FIGS. 3 to 12 as follows.

A bracket 2 welded to one side of the hook so as to be hung on a shelf and provided at one end of the hook so as to be cross welded to one end of the hook, A spot welding apparatus (100) for manufacturing a hanger (10) comprising a horizontal bar (3) for attaching and detaching a product name hanging member,

3, the spot welding apparatus 100 includes a first movable electrode unit 21 electrically connected to one main body 101 through an operation rod of a first pressurizing cylinder 20, And a first fixed electrode portion 22 corresponding to a lower portion of the first movable electrode portion; and a second spot welding means 100-1 for separating the second movable electrode portion from the first spot welding means, A second spot welding means 100-2 composed of a second movable electrode portion 31 electrically connected through the operating rod and a second fixed electrode portion 32 corresponding to the lower portion of the second movable electrode portion are respectively provided do.

In the above configuration, the first movable electrode unit 21 is connected to the first jig 110 for temporary seating of the hook 1 bent in the form of a letter.

A second jig 120 for temporarily holding the bracket is installed on the first fixed electrode part 22 corresponding to the first movable electrode part 21. [

The first jig 110 includes a seating groove 112 formed on the front surface of the body 111 connected to the operating rod of the first pressing cylinder 20 and guiding one side of the hook 1 bent in a B- A fixing groove 113 provided at one side of the length of the mounting groove 112 and a supporting protrusion 114 protruding from the upper and lower sides of the fixing groove 113 and a fixing screw 113 guided by the fixing groove 113, A fixing block 115 which is fixedly installed at the bottom of the mounting groove 112 and guides a vertical length of the hook 1 placed in the mounting groove 112 and a lower portion of the hook 1 formed by bending a semicircular groove A semicircular rectangular guide groove (not shown) for guiding one side of the fastener 1 formed at the outer side of the pressing electrode portion 116 and bent after the welding, at right angles to the second jig 120, (117).

4, the fixing block 115 may be formed to be bent in accordance with the shape of the hook 1 formed to be bent for hanging one side lengthwise product, or may be formed to be bent to fit the hook 1 The fixing blocks 115 are formed in the fixing grooves 113 of the first jig 110 so that the fixing screws 115 are inserted into the fixing grooves 113 of the first jig 110, And is detachably installed in such a manner that the upper and lower end sides are supported between the support protrusions 114. [

The second jig 120 includes a groove 121 for guiding the bracket 2 and a guide protrusion 122 for guiding and aligning the bracket on one side of the groove to integrally support the lower portion of the first jig 110 do.

The third fixed jig 130 is connected to the second fixed electrode unit 32 to receive the horizontal bar 3 and the horizontal bar 3 is provided on one side of the length of the third jig 130, And a horizontal bar feed bar 140 for continuously feeding the horizontal bars 3 to the third jig 130. The horizontal bars 3 are individually fed from the third jig 130 to a position where the ends of the bar 1 are welded A feed cylinder 150 is provided.

The third jig 130 includes a semicircular support groove 131 for seating at least one horizontal bar 3 on the upper surface thereof in the upper surface thereof and a semicircular support slot 131 for receiving the horizontal bar 3 from the side of the horizontal bar feed bar 140 A separation groove 132 for supplying the horizontal bar 3 is formed and a separation preventing member 133 for preventing the separation of the horizontal bar is attached to an end of the receiving groove 131. A separation preventing member 133 On the opposite side, the supply cylinder 150 is attached and operated to intermittently actuate the operating rod of the supply cylinder to move the transverse bar to the welding position.

The operation rod of the second pressurizing cylinder 30 provided with the second movable electrode unit 31 presses the end of the fastener 1 located at the upper portion of the third jig 130 to attach the cross bar 3 And a pressing member 160 installed to be rotatable 360 degrees on the basis of the operation rod.

On the other hand, in the main body 101 between the second jig 120 and the third jig 130, the length of the fastener 1 positioned between the second jig and the third jig is supported, A first bending member 170 for pressing the hook 1 in a direction in which the first jig 110 is positioned is provided, wherein the first bending member 170 supports the length of the hook 1 A pressing belt 172 provided with a plurality of supporting rollers 171 and a first hydraulic cylinder 173 for moving the pressing belt 172 up and down.

A second bending member 180 is provided on one side of the first bending member 170 to press the length side of the first bending member 180 toward the first jig 110 side, A pressure roller 181 for pushing the fastener 1 to be bent toward the first jig 110 and pressing the fastener 1 in a straight line is constituted by a second hydraulic cylinder 182 provided in the operation rod .

In the drawing, reference numeral 102 denotes a dip switch provided on the lower front surface of the spot welding apparatus.

The process of fabricating a hanger using the spot welding apparatus of the present invention and its operation will be described as follows.

The spark welding apparatus 100 according to the present invention is operated as a principle of a conventional spot welder and on the basis of this, the spark welding apparatus 100 according to the present invention includes the first spot welding means 100-1 and the second spot welding means 100-2 1 (c) and 1 (d) of FIG. 1 by applying the first folding member 170 and the second folding member 180 to fabricate a hanging hanger 10 capable of hanging a product as shown in FIG. 2 .

Accordingly, in the present invention, the hook and the bracket, which are generally formed in the shape of a B-type, are fixed to the first and second jigs of the spot welding apparatus by the operator while the worker sets the bracket as shown in FIG. 3 and FIG. The first pressurizing cylinder 20 and the second pressurizing cylinder 30 are lowered and the first jig 110 and the second jig 120 are brought into contact with each other, The pressing member 160 and the third jig 130 are pressed against each other by a pressing force so as to be locally heated by the current concentration and at the same time, the pressure is applied to the bracket 1, the bracket 2, And the spot resistance welding (welding) of the horizontal bar 3 is performed at the same time.

The hanger 1 and the bracket 2 are spot welded by the current resistance generated in the bracket and the joining hanger in the pressing electrode portion 116 which is the lower side end portion of the first jig 110.

The supporting rollers 171 of the first pressing member 172 and the pressing rollers 181 of the second bending member 180 of the first bending member are moved from the side of the second jig 120 And supports the bottom portion of the fastener 1 located in the third jig 130 to assist stable spot welding.

The first pressing cylinder 20 and the second pressing cylinder 30 serving as the movable electrodes are moved in the initial state to the first jig 110 and the pressing member 160 ).

The first bending member 170 is operated at the time when the pressing member 160 is rotated and rotated 360 degrees and the pressing member is rotated and deviates from the third jig 130. As a result, The bending operation is performed.

In this state, heat remaining on the welded portions of the bracket 1 and the bracket 2 is left after the welding. At this time, the first hydraulic cylinder 173 constituting the first bending member is operated, 172 of the support rollers 171 upward.

As shown in FIG. 9, the hooking unit 1 is initially lifted in one direction so that it can be bent easily, and at the same time, the supporting roller 171 located on the right side is lifted up, As shown in FIG. 10 at the maximum right angle.

The second hydraulic cylinder 182 constituting the second bending member 180 is operated and the pressing roller 181 provided at the end of the second hydraulic cylinder 182 operates in the state in which the supporting roller 171 ascends to the maximum top dead center, (1) while pushing the hook so that the hook is bent at a right angle. At this time, the portion of the fastener 1 that is bent is ironed by the pressing roller 181 so that the fastener can be guided to the rectangular flow groove 117 of the first jig 110.

After the above process is completed, the hanger 10 having completed the spot welding and the bending process from the first jig 110 can be taken as a finished product, as shown in FIG.

On the side of the third jig 130 in the series of steps as described above, the horizontal bar 3 continuous from the side of the horizontal bar feed table 140 is supplied to the semicircular support groove 131, 150 are operated to push the horizontal bar 3 from the supply groove 132 to the end of the receiving groove 131. When the horizontal bar is loaded in the separation preventing member 133, It is possible to produce the hanger 10 as a repetitive work of performing spot welding in a set state.

Accordingly, the present invention produces a semi-finished product in which spot welding is primarily performed for each of the hanger and the bracket, and attaches the horizontal bar to another spot welding device, thereby remarkably improving the work efficiency compared to the workability and productivity of spot welding An advantage is provided.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

1: Hook 2: Bracket
3: Name Hanger Horizontal Bar 10: Hanger
20: first pressure cylinder 21: first movable electrode part
22: first fixed electrode part 30: second pressure cylinder
31: second movable electrode part 32: second fixed electrode part
100: spot welding apparatus 100-1: first spot welding means
100-2: second spot welding means 101:
102: dip switch 110: first jig
111: body 112: seat groove
113: fixing groove 114:
115: fixed block 116:
117: right angle guiding groove 120: second jig
121: groove 120: guide protrusion
130: third jig 131:
132: supply groove 133: release preventing member
140: a horizontal bar feeder 150: a feed cylinder
160: pressing member 170: first bending member
171: Support roller 172:
173: first hydraulic cylinder 180: second bending member
181: pressure roller 182: second hydraulic cylinder

Claims (6)

A bracket 2 welded to one side of the hook so as to be hung on a shelf and provided at one end of the hook so as to be cross welded to one end of the hook, A spot welding apparatus (100) for manufacturing a hanger (10) made up of a horizontal bar (3) for attaching and detaching a product name hanging member,
In the spot welding apparatus 100,
A first movable electrode portion 21 electrically connected to one main body 101 through an operating rod of the first pressure cylinder 20 and a first fixed electrode portion 22 corresponding to a lower portion of the first movable electrode portion, A second movable electrode portion 31 electrically connected to the first spot welding means through an operation rod of the second pressure cylinder 30 so as to be spaced apart from the first spot welding means, And a second spot welding means 100-2 made of a second fixed electrode portion 32 corresponding to the lower portion of the two movable electrode portion,
A first jig 110 connected to the first movable electrode unit 21 to temporarily fix the hook 1 bent in a bent shape,
A second jig 120 connected to the first fixed electrode unit 22 to temporarily suspend the bracket,
A third jig 130 connected to the second fixed electrode unit 32 for seating the horizontal bars 3,
The horizontal bar feed bar 140 and the horizontal bar bar 3 which are provided on one side of the length of the third jig 130 and supply the horizontal bar 3 to the third jig 130 successively are arranged one by one in the third jig 130 to a position to be welded to the end of the hanger 1,
The second movable electrode unit 31 is connected to the operating rod of the second pressing cylinder 30 to press the end of the hook 1 located at the upper portion of the third jig 130, A pressing member 160 which is installed to be rotatable 360 degrees with respect to the operation rod,
The length of the fastener 1 provided in the main body 101 between the second jig 120 and the third jig 130 and positioned between the second jig and the third jig is supported, A first bending member 170 for pressing the hook 1 in a direction in which the first jig 110 is located,
And a second bending member (180) provided on one side of the first bending member (170) to press the length side of the hook which is bent toward the first jig (110) side toward the first jig side Spot welding apparatus.
The method according to claim 1,
The first jig 110 includes a seating groove 112 formed on the front surface of the body 111 connected to the operating rod of the first pressing cylinder 20 and guiding one side of the hook 1 bent in a B- ,
A fixing groove 113 provided at one side of the length of the mounting groove 112 and a supporting protrusion 114 protruding from the upper and lower sides of the fixing groove 113,
A fixing block 115 which is guided by the fixing groove 113 and is fixed by a fixing screw S and guides a vertical length of the hook 1 placed in the mounting groove 112,
A pressing electrode portion 116 which is formed by a semi-circular groove formed in the lower portion and which is guided by the bent portion of the hook 1 to be pressed toward the second jig 120,
Wherein a semicircular rectangular guiding groove (117) is formed at an outer side of the pressurizing electrode portion (116) to guide one side of the hook (1) bent at a right angle after welding.
The method according to claim 1,
Wherein the second jig (120) is integrally provided with a groove (121) for guiding the bracket (2) and a guide protrusion (122) for guiding and aligning the bracket on one side of the groove.
The method according to claim 1,
The third jig 130 includes a semicircular support groove 131 for seating at least one horizontal bar 3 on the upper surface thereof in the upper surface thereof and a semicircular support slot 131 for receiving the horizontal bar 3 from the side of the horizontal bar feed bar 140 A separation groove 132 for supplying the horizontal bar 3 is formed and a separation preventing member 133 for preventing the separation of the horizontal bar is attached to an end of the receiving groove 131. A separation preventing member 133 And the supply cylinder (150) is attached to the opposite side of the mounting spot.
The method according to claim 1,
The first bending member 170 includes a pressing belt 172 having a plurality of supporting rollers 171 for guiding and supporting the lengthwise direction of the hanger 1, And a hydraulic cylinder (173).
The method according to claim 1,
The second bending member 180 pushes the hook 1 to be bent toward the first jig 110 and a pressing roller 181 for pressing the hook 1 in a straight line is provided on the operation rod 2 hydraulic cylinder (182).

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