KR102297761B1 - Welding device and kichen appliance manufacturing method using the same - Google Patents

Abstract

The present invention relates to a welding apparatus and a method for manufacturing kitchen appliances using the same, and more particularly is to provide a welding apparatus and a method for manufacturing kitchen appliances using the same capable of performing efficient and safe welding to manufacture kitchen appliances. The present invention includes a seating plate; a welding means; and a transport means.

Description

Welding device and kitchen appliance manufacturing method using the same

The present invention relates to a welding apparatus and a method for manufacturing kitchenware using the same, and more particularly, to provide a welding apparatus and a method for manufacturing kitchenware using the same for manufacturing kitchenware by efficiently and safely performing welding .

In general, among kitchen appliances, the tableware drying rack moves the water on the tableware to the lower side and dries it, and it is manufactured by welding stainless steel rods with excellent corrosion resistance, but separating the stainless steel rods (Prior Art 1 Registered Utility Model No. 20-0484814) Reference).

As described above, in order to manufacture kitchen appliances such as a dish drying rack, a process of welding an object such as a stainless steel rod is required.

The prior art, Laid-Open Patent Publication No. 10-2017-0017496 (hereinafter referred to as prior art 2) relates to a welding method of a kitchen utensil, and in more detail, a plurality of wire legs 12 arranged in a radial direction to a first jig 22 ) a wire leg mounting step coupled to; It is for manufacturing a kitchen appliance by welding the object to be welded, including a ring body step of placing the ring body 14 on the upper end of the wire leg 12 so that the ring body 14 is supported on the upper end of the first jig 22 .

However, in this prior art, since the object to be welded must be directly mounted on the jig, it is not efficient, and there is a problem in that it is particularly dangerous in terms of stability.

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a welding apparatus capable of efficiently and safely performing welding to manufacture a kitchen appliance, and a kitchen appliance manufacturing method using the same.

Another object of the present invention is to provide a welding apparatus capable of manufacturing a kitchen appliance by precisely welding an object, and a kitchen appliance manufacturing method using the same.

The present invention for the purpose of solving the above problems has the following configuration and features.

A welding object is seated, a welding means including a seating plate having a through hole, an upper electrode provided above the through hole, and a lower electrode moving up and down while passing through the through hole, and a detachable coupling part detachably connected to the object, It includes a transfer means including a first transfer unit for moving the detachable coupling portion on the seating plate in a first direction and a second transfer unit for moving the detachable coupling portion on the seating plate in a second direction orthogonal to the first direction .

In addition, a form that is detachably coupled to the detachable coupling portion, a first frame having a plurality of first grooves provided at intervals along a third direction from the inside of the form and recessed from the upper side to the lower side, and the formwork It may include a jig including a second mounting frame provided with a plurality of intervals along a fourth direction intersecting the third direction from the inside, the second groove is recessed from the top to the bottom.

In the kitchen appliance manufacturing method using a welding device, the step of connecting the object to the detachable coupling portion (S1), moving the object using at least one of the first transfer unit and the second transfer unit (S2) , at least one of welding the object using the welding means (S3), cutting the edge of the semi-finished product manufactured by welding the object (S41), and bending the semi-finished product using a bending machine (S42) It includes a post-processing step (S4) comprising a.

The present invention having the above configuration and features has the effect that by including a seating plate and a transfer means including a through hole, it is possible to efficiently and safely perform welding to manufacture a kitchen appliance.

In addition, the present invention has an effect that the object can be precisely welded by including the jig.

1 is a view for explaining a welding apparatus according to an embodiment of the present invention.
2 is a view for explaining a transfer means including a detachable coupling portion.
3 is a view for explaining the jig.
4 is a diagram illustrating a state in which an object is mounted on a jig.
5 is a schematic flowchart for explaining a kitchen appliance manufacturing method according to an embodiment of the present invention.
Figure 6 is a view showing a punching machine for processing the edge of the semi-finished product.
7 is a view for explaining the bending machine.
8 is a view for explaining the finished product.
9 is a view for explaining a further embodiment of the present invention.

The present invention is intended to be described in detail in the text of the embodiment (態樣, aspect) (or embodiments) can be applied to various changes and can have various forms. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as comprises or consists of are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

~1~, ~2~, etc. described in the present specification will be referred to only to distinguish that they are different components, and are not limited to the order of manufacture, and their names in the detailed description and claims of the invention are may not match.

Throughout this specification, when a part is "connected" with another part, this includes not only the case of being "directly connected", but also the case of being "indirectly connected" with another element interposed therebetween. do.

FIG. 1 is a view for explaining a welding apparatus according to an embodiment of the present invention, and FIG. 2 is a view for explaining a transfer means including a detachable coupling part.

The welding apparatus W according to an embodiment of the present invention is an apparatus for efficiently and safely welding the object 5 to be welded. Hereinafter, it will be referred to as 'this apparatus' for convenience of description.

1 and 2, the apparatus (the welding apparatus (W) according to an embodiment of the present invention) includes a seating plate (1), a welding means (2) and a transfer means (3).

The mounting plate 1 is to which the object to be welded 5 is seated, the through hole 11 is formed. The object to be welded 5 is a metal material, and may include a separate object (eg, the first rod 51 and the second rod 52) that is welded by the apparatus, and is manufactured by being welded by the apparatus. Since the finished product 9 is a kitchen appliance, the object 5 may be exemplarily made of a stainless steel material having excellent corrosion resistance.

As will be described in more detail in the following description, the object 5 may be mounted on the jig 4 to move on the mounting plate 1 .

The seating plate 1 is preferably formed of a metal material in order to provide rigidity because the object 5 moves repeatedly from the upper portion. The through hole 11 is a hole through which the lower electrode 22 of the welding means 2 to be described later passes.

Here, upper (upper, upper, upper, etc.) means upper (upper, upper, upper, etc.) in the vertical direction, and may be upper (upper, upper, upper, etc.) The lower side, the lower side, etc.) means the lower side (lower, lower side, lower end, etc.) in the vertical direction, and may mean the lower side (lower side, lower side, lower side, etc.) in FIG. 6 . The same will be applied hereinafter.

1 and 2 , the welding means 2 includes an upper electrode 21 provided above the through hole 11 and a lower electrode 22 that moves up and down through the through hole 11 . .

The welding means 2 may correspond to a spot welding machine, and the upper electrode 21 and the lower electrode 22 can be moved up and down by a driving unit 23 , and the driving unit 23 is an exemplary hydraulic cylinder. Each of the upper electrode 21 and the lower electrode 22 may be moved up and down, including the like. This is common in the relevant field, and a more detailed description thereof will be omitted.

As the upper electrode 21 and the lower electrode 22 move up and down, the object 5 disposed between the upper electrode 21 and the lower electrode 22 is used as an electrical resistor, and the object 5 is welded by the electrical resistance heat. do.

As described above, it was said that the lower electrode 22 moves up and down through the through hole 11. In normal (when not welding), the lower electrode 22 is provided under the seating plate 1 so that the object 5 is mounted on the seating plate 1). (Prevents the object 5 from being caught by the lower electrode 22 and preventing movement), and during welding, the lower electrode 22 passes through the through hole 11 on the upper part of the seating plate 1 It is possible to weld the object 5 disposed on the lower electrode 22 by making it protrude.

FIG. 3 is a view for explaining a jig, and FIG. 4 is a view showing a state in which an object is mounted on the jig.

1 to 4 , the transfer means 3 includes a detachable coupling part 31 that is detachably connected to the object 5 .

More specifically, the detachable coupling part 31 may be detachably coupled to the detachable corresponding part 411 of the jig 4 to be described later on which the object 5 is mounted. The jig 4 will be described in more detail in the following description.

The transfer means (3) includes a first transfer unit (32) for moving the detachable coupling portion (31) on the seating plate (1) in a first direction.

Exemplarily, the first transfer unit 32 is connected to a first driving motor (not shown) and measures a length in a direction corresponding to the longitudinal direction of the first transfer unit 32 (2 o'clock - 8 o'clock direction based on FIG. 2 ). The branch may include a first ball screw, and the detachable coupling part 31 is fastened to the first ball screw to rotate the first ball screw by a first driving motor (not shown). It can reciprocate along the longitudinal direction (first direction). Accordingly, the object 5 connected to the detachable coupling unit 31 may reciprocate along the longitudinal direction (the first direction) of the first ball screw.

The driving method of the first transfer unit 32 is described as an example and is not limited thereto, and as long as the detachable coupling unit 31 can be moved in the first direction, various configurations such as a timing belt and a hydraulic cylinder may be included. can

The conveying means 3 includes a second conveying part 33 for moving the detachable coupling part 31 in a second direction perpendicular to the first direction on the seating plate 1 . The second direction is a direction orthogonal to the first direction when viewed in a plan view.

Exemplarily, the second transfer unit 33 includes a second ball screw connected to a second driving motor (not shown) and having a longitudinal direction (5 o'clock-11 o'clock direction based on FIG. 2) corresponding to the second direction. The first transfer unit 32 is fastened to the second ball screw through a frame and bolting, and as the second ball screw is rotated by a second driving motor (not shown), the length of the second ball screw It can reciprocate along the direction (second direction). Accordingly, the object 5 connected to the detachable coupling unit 31 may reciprocate along the second direction.

The driving method of the second transfer unit 33 is described as an example, and various configurations such as a timing belt and a hydraulic cylinder may be included as long as the first transfer unit 32 can be moved in the second direction. .

Although not shown, the device controls the driving unit 23 of the welding means 2 and the driving motors of the transfer means 3 (a first driving motor (not shown) and a second driving motor (not shown)) It may include a control unit (not shown). That is, the driving unit 23 and the driving motors can operate for a time set at a time set by the control unit (not shown).

Various control configurations (eg, various electronic devices or electronic modules such as computers and processors) known to those skilled in the art may be applied to the control unit (not shown). Illustratively, the control unit (not shown) transmits a signal or command generated according to a program or algorithm included therein to the driving unit 23, a first driving motor (not shown), a second driving motor (not shown), etc. can be For example, the control unit (not shown) is included in the driving unit 23, the first driving motor (not shown), the second driving motor (not shown), or the like, or the driving unit 23, the first driving motor (not shown), The second driving motor (not shown) is provided separately from the driving unit 23, the first driving motor (not shown), and the second driving motor (not shown) in a position adjacent to the driving unit 23, the first driving motor ( (not shown), a second driving motor (not shown), etc. may be connected by wire or wirelessly.

As such, the present apparatus can move the object 5 to the welding means 2, including the transfer means 3, so that welding can be performed efficiently and stably. In addition, as described above, the seating plate 1 includes the through hole 11 , so that the object 5 can be moved without being caught by the lower electrode 22 .

3 and 4, the device includes a first groove 421 provided with a plurality of forms 41, spaced apart from each other in the third direction from the inside of the form 41, and recessed from the upper part to the lower side. It may include a jig (4) including a first mounting frame (42).

Here, the inner side may mean the side of the space formed by the form 41 . The third direction may be a direction parallel to the second direction. A plurality of the first grooves 421 may be formed at intervals along the first direction that is the longitudinal direction of the first mounting frame 42 .

The jig 4 is provided with a plurality of jigs at intervals along the fourth direction intersecting the third direction in the inner side of the form 41, and a second mounting frame including a second groove 431 recessed from the upper side to the lower side. (43) may be included.

The fourth direction may be a direction parallel to the first direction, and a plurality of the second grooves 431 may be formed at intervals along a second direction that is a longitudinal direction of the second mounting frame 43 . .

The first groove 421 and the second groove 431 are grooves into which the object 5 is inserted and mounted, and serve as grooves into which the second support frame 43 and the first support frame 42 are respectively inserted. can be done

For example, the second mounting frame 43 may be inserted into the second groove 431 to be coupled to each other in a crossed state, and may be fixed to the formwork 41 by welding or the like.

Each of the first cradle frame 42 and the second cradle frame 43 may include a fitting groove (not shown) recessed from the bottom to the upper side, and the first groove 421 or the second groove 431 . And the fitting groove may be fitted so that the first support frame 42 and the second support frame 43 may be fitted.

Each of the first groove 421 and the second groove 431 is a groove into which separate objects (the first rod 51 and the second rod 52) of the object 5 are inserted and mounted, for example. As a result, the first rod 51 is inserted into the first groove 421 , and the second rod 52 is inserted into the second groove 431 , and the first rod 51 and the second rod 52 are inserted on the jig 4 . The rods 52 may be disposed to cross each other.

The first rod 51 and the second rod 52 disposed on the jig 4 are moved to the welding means 2 by the transfer means 3 and are welded by the welding means 2 . .

In this case, the above-described form 41 may include a detachable coupling part 31 and a detachable corresponding part 411 that is detachably coupled. Illustratively, the detachable corresponding portion 411 may include a protrusion formed with a through hole through which a fastening means such as a bolt or the like is penetrated. It may include a body formed with a hole through which the groove and the fastening means are penetrated.

As long as the detachable coupling unit 31 and the detachable corresponding unit 411 are detachably coupled, various configurations may be substituted for or included in the above configuration, of course.

In this way, the present apparatus can suppress the shaking of the object 5 including the jig 4 to perform welding more precisely, and the first cradle frame 42 and the second cradle frame 43 are each The first cradle frame 42 and the second cradle frame 43 manufactured separately from each other including the first groove 421 and the second groove 431 may cross each other and be fixed to the mold 41 . .

5 is a schematic flowchart for explaining a kitchen appliance manufacturing method according to an embodiment of the present invention, FIG. 6 is a view showing a punching machine for processing the corner of a semi-finished product, and FIG. 7 is a view for explaining a bending machine and FIG. 8 is a view for explaining the finished product.

Meanwhile, a description will be given of a kitchen appliance manufacturing method (hereinafter referred to as 'this method') according to an embodiment of the present invention. However, this method is a kitchen appliance manufacturing method using the above-described device, and since it includes the same or corresponding technical features as the device, the same reference numerals are used for the same or similar configuration as the above salpin configuration, and overlapping descriptions will be abbreviated or omitted.

Referring to FIG. 5 , the method includes an object connection step S1 , a moving step S2 , a welding step S3 , and a post-processing step S4 .

3 to 5 , the object connecting step S1 is a step of connecting the object 5 to the detachable coupling unit 31 . The object 5 may be mounted on a jig 4 , and the jig 4 may be detachably connected to the detachable coupling part 31 , such that the object 5 may be connected to the detachable coupling part 31 .

1, 2 and 5 , the moving step S2 is performed by using at least one of the first transfer unit 32 and the second transfer unit 33 to move the object 5 on the seating plate 1 . is a step Accordingly, the moving step S2 may move the object 5 in at least one of the first direction and the second direction.

1 and 5 , the welding step S3 is a step of welding the object 5 using the welding means 2 . The object 5 is manufactured as a semi-finished product 6 after the welding step S3.

5 to 7 , the post-processing step (S4) is at least one of a step (S41) of cutting the corner of the semi-finished product (6) and a step (S42) of bending the semi-finished product (6) using the bending machine (8). It is a step that includes one.

The step (S41) may be performed by the punching machine (7). The punching machine 7 is commonly used in the field, and a more detailed description is omitted.

For example, (S41) may be a step of cutting the other protruding portion based on any one of the first rod 51 and the second rod 52.

The step (S42) is performed by the bending machine 8, and the bending machine 8 is conventional in the relevant field, and a more detailed description thereof will be omitted. Step (S42) is performed after the welding step (S3) so that a plurality of rods (the first rod 51 or the second rod 52) can be bent at once, so that the bending process can be efficiently performed.

After the post-processing step (S4), the semi-finished product 6 is manufactured into a finished product 9 (kitchenware) as shown in FIG. 8 .

Meanwhile, the device may include a waterproofing membrane G provided on the mounting plate 1 . The waterproofing membrane (G) includes a water leak detecting means (G2) provided on the upper portion of the seating plate (1) and a waterproofing means (G1) provided on the upper portion of the water leak detecting means (G2).

The waterproofing film G2 may further include an adhesive layer (not shown) for mutually attaching the mounting plate 1 and the leak detection means G2, and the adhesive layer (not shown) may include an acrylic adhesive.

The waterproofing means (G1) includes 100 parts by weight of a propylene ethylene copolymer (or ethylene-propylene copolymer), and the propylene-ethylene copolymer is employed to impart elasticity.

In addition, the waterproofing means (G1) includes 60 parts by weight of a mixture of diisocyanate and polyol, which was used to impart waterproofness, and when the mixture of diisocyanate and polyol is less than 60 parts by weight, lubricity and surface coating properties are lowered and when it exceeds 60 parts by weight, the lightness of the entire waterproofing layer is reduced.

Aluminate is added to improve the bonding properties and cohesiveness of each component of the waterproofing means (G1), and when the bonding aid is less than 4 parts by weight, the mixing speed is lowered, and when it exceeds 4 parts by weight, mechanical properties and lightness this may be lowered.

Of course, the waterproofing means (G1) may further include an acrylic adhesive to improve adhesion with the leak detection means (G2).

Referring to FIG. X, when the water leak detecting means G2 is described in more detail, the water leak detecting means G2 is provided on the upper part of the waterproof means G1 and has a lower conductive layer having a plurality of support grooves G211 formed on the upper surface ( G21), the insulating layer G22 provided on the lower conductive layer G21, the upper conductive layer G23 provided on the insulating layer G22, and the insulating layer supported by the support groove G211 The absorption expansion part G24 disposed in the layer G22, the lower conductor G25 connected to the lower conductive layer G21, the upper conductor G26 provided on the absorption expansion part G24, and the lower part A conductive line G27 electrically connecting the conductor G25 and the upper conductor G26 may be included.

Here, each of the lower conductive layer G21, the upper conductive layer G23, the lower conductor G25, the upper conductor G26, and the conductive wire G27 may be formed of a conductive film such as copper or aluminum or a metal material. can The insulating layer G22 may include, for example, a plurality of polymer resins having a granular shape. That is, a plurality of polymer resin grains are disposed between the lower conductive layer (G21) and the upper conductive layer (G23) so that the lower conductive layer (G21) and the upper conductive layer (G23) are in a state in which the absorption expansion part (G24) is not expanded. to separate

The absorbent expansion part (G24) is formed of an endothelium (G242) formed of cotton fabric and hemp woven fabric wrapped around polyacrylate (G241), polyacrylate (G241), and an outer shell (G242) surrounding the endothelium (G242). G243).

The absorption expansion part G24 is designed to absorb and expand the water when it comes into contact with water, and the water may be absorbed into the polyacrylate G241 by penetrating the endothelium G242 and the outer shell G243. The polyacrylate (G241) absorbs the water that has passed through the outer shell (G243) and the endothelium (G242) and expands, thereby increasing the volume of the absorption expansion part (G24). In this way, since the water leak detection means (G2) can absorb water by including the absorption expansion part (G24), it is possible to improve the waterproofness.

The lower part of the upper conductor G26 may be fixed to at least one of the outer shell G243 and the inner shell G242 by a conventional method used in the relevant field, such as a strong adhesive.

Meanwhile, the upper conductive layer G23 may include a plurality of funnel-shaped hoppers G231 . Water may be introduced into the inlet G231a of the hopper G231 and discharged through the outlet G231b. In this case, the plurality of outlets G231b of each of the plurality of hoppers G231 may be disposed at positions corresponding to the central portions of each of the plurality of support grooves G211 in which the absorption and expansion parts G24 are disposed.

The width of the upper conductor G26 decreases from the lower side to the upper side, but the width of the upper end of the upper conductor G26 is smaller than the width of the outlet G231b, and the width of the lower end of the upper conductor G26 is the absorption expansion part ( It may be smaller than the width of G24).

Referring to FIG. 9A , the absorption expansion part G24 does not expand without absorbing water, so that the lower conductive layer G21 and the upper conductive layer G23 are spaced apart by the insulating layer G22. is in a state of being Accordingly, since no current flows from the lower conductive layer G21 to the upper conductive layer G23 or from the upper conductive layer G23 to the lower conductive layer G21, it can be confirmed that the leakage does not occur.

If water accumulates in the left area (hereinafter (the first area A1)) (the left area of FIG. 9 ) based on the boundary line DL of the neighboring hopper G231 in [A] of FIG. 9, the hopper G231 ), the water in the first area A1 may be collected.

Water from the hopper G231 disposed in the first area A1 is discharged through the outlet G231b and moves downward through the space between the polymer resin grains, and is wider than the outlet G231b (in the left and right direction based on FIG. 9 ) Length) is pulverized at the upper end of the small upper conductor G26 and is absorbed by the absorption expansion unit G24 by moving downward.

As described above, since the width of the upper end of the upper conductor G26 is larger than the width of the outlet G231b, the water droplets discharged from the outlet G231b may not accumulate at the upper end of the upper conductor G26, and the upper conductor Since the width of (G26) increases toward the lower side, water can move downward. At this time, as described above, since the width of the lower end of the upper conductor G26 is smaller than the width of the absorption expansion unit G24, the water moving downward through the upper conductor G26 moves to the absorption expansion unit G24 and is absorbed. can be

When the water flowing downward through the upper conductor G26 passes through the outer shell G243 and the inner shell G242 of the absorption expansion part G24 and is absorbed into the polyacrylate G241, the polyacrylate (G241) is The upper conductor G26, which expands within a few minutes and is fixed to the upper portion of the absorption expansion unit G24, moves the polymer resin particles upward and comes into contact with the upper conductive layer G23. Through this, current flows through the upper conductive layer G23 and the lower conductive layer G21, and it can be determined that a leak has occurred by checking the current through an ammeter or the like.

As described above, it was said that the outlet (G231b) of the hopper (G231) may be disposed at a position corresponding to the central portion of the support groove (G211). Leakage can be identified by using the expansion part G24 to a minimum. That is, since the absorption expansion part G24 can be disposed only in the support groove G211 without the need to be disposed on the upper surface of the lower conductive layer G21, material savings can be achieved.

In addition, by dividing the upper conductive layer G23 through the boundary line DL formed by the neighboring hopper G231, any one of the plurality of regions (for example, the first region as shown in [B] of FIG. 9 ) (A1)) can be identified, so only the leaked area can be repaired.

In more detail with reference to [B] of FIG. 9, the first of the hoppers G231 disposed in each of the first area A1 and the second area A2 (the area on the right with respect to the boundary line DL) When only the absorption and expansion part G24 disposed in the first area A1 expands due to the accumulation of water only in the hopper G231 disposed in the area A1, the upper conductive layer G23 and the lower portion of the first area A1 are It can be confirmed that only the conductive layer G21 is energized and leakage occurs only in the first area A1, so that only the first area A1 needs to be repaired, so that the repair process can be simplified ( Insulation is preferably provided between G231)).

The present invention described above with reference to the accompanying drawings is capable of various modifications and changes by those skilled in the art, and such modifications and changes should be construed as being included in the scope of the present invention.

Welding device: W
Seating plate: 1 Through hole: 11
Welding means: 2 Upper electrode: 21
Lower electrode: 22 Driving unit: 23
Transport means: 3 Detachable coupling part: 31
1st transfer unit: 32 2nd transfer unit: 33
Jig: 4 Form: 41
Detachable part: 411 First mounting frame: 42
1st groove: 421 2nd mounting frame: 43
2nd home: 431
Subject: 5 Rod 1: 51
Second bar: 52 Semi-finished product: 6
Punching machine: 7 Bending machine: 8
Finished product: 9

Claims (4)

A mounting plate on which the object to be welded is seated, a through hole is formed;
welding means including an upper electrode provided above the through hole and a lower electrode passing through the through hole and moving up and down; and
A detachable coupling part detachably connected to the object, a first transfer part for moving the detachable coupling part on the seating plate in a first direction, and a second direction on the seating plate moving the detachable coupling part orthogonal to the first direction a transfer means including a second transfer unit;
including,
A form that is detachably coupled to the detachable coupling portion, a first cradle frame having a plurality of first grooves provided at intervals along a third direction from the inside of the form and recessed from the upper to the lower side, and the inner side of the form a jig including a second mounting frame provided with a plurality of spaced apart along a fourth direction intersecting the third direction and having a second groove recessed from the upper side to the lower side;
Welding apparatus, characterized in that it further comprises. delete The method according to claim 1,
Including a waterproof membrane (G) provided on the seating plate,
The waterproof membrane (G) includes a water leak detection means (G2) provided on the upper portion of the seating plate and a waterproof means (G1) provided on the water leakage detection means (G2),
The waterproofing means (G1) includes 100 parts by weight of a propylene ethylene copolymer, 60 parts by weight of a mixture of diisocyanate and polyol, and 4 parts by weight of aluminate,
The leak detection means includes a lower conductive layer having a plurality of support grooves formed on its upper surface, an insulating layer provided on the lower conductive layer, an upper conductive layer provided on the insulating layer, and the insulating layer supported by the support grooves. an absorption expansion unit disposed in the absorbing expansion unit, a lower conductor connected to the lower conductive layer, an upper conductor provided on the absorption expansion unit, and a conductive wire electrically connecting the lower conductor and the upper conductor;
The absorbent expansion part is formed of polyacrylate, a cotton fabric, and an endothelium surrounding the polyacrylate, and an outer skin surrounding the endothelium, which is formed of a hemp woven fabric,
The upper conductive layer includes a plurality of funnel-shaped hoppers, and the outlet of each of the plurality of hoppers is disposed at a position corresponding to the center portion of each of the plurality of support grooves,
Welding, characterized in that the width of the upper conductor decreases from the lower side to the upper side, the width of the upper end of the upper conductor is smaller than the width of the outlet, and the width of the lower end of the upper conductor is smaller than the width of the absorption expansion part. Device. In the kitchen appliance manufacturing method using the welding device according to claim 1,
connecting the object to the detachable coupling part (S1);
moving the object using at least one of the first transfer unit and the second transfer unit (S2);
welding the object using the welding means (S3); and
a post-processing step (S4) including at least one of cutting the corner of the semi-finished product manufactured by welding the object (S41) and bending the semi-finished product using a bending machine (S42);
A kitchen appliance manufacturing method comprising a.

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