KR102036015B1 - Industrial Welding Machine Case Foaming Machine Using Variable Foaming Frame - Google Patents

Abstract

The present invention relates to an industrial welding machine case foaming machine using a variable foaming frame, which is varied in accordance with a size of a panel that is a foaming work target to perform fixing and foaming work, and can perform fixing, side foaming, corner foaming, and cutting work in one foaming frame. More specifically, the machine is varied and adjusted for a size of a panel that is a foaming target in an upper portion of a foaming frame to perform side foaming work via a fixing process and corner foaming in order, and then, an extended portion generated by the corner foaming is cut. In one foaming frame, the machine is varied for a panel of which an area is different to be simply fixated to perform foaming work to reduce labor costs.

Description

Industrial Welding Machine Case Foaming Machine Using Variable Foaming Frame}

The present invention relates to a welding machine case forming apparatus, and more particularly, the foaming of the sides and various forms of the corners in a state in which the panel is fixed is possible by the variable operation of the case of the industrial welding machine in the form of a hexahedron, forming a foam packing The present invention relates to a case forming apparatus for an industrial welding machine using a variable forming mold used in general welding companies, industrial welding companies, and various welding cases.

In general, welding is the joining of two metals in a molten state or a semi-melted state, and there are advantages of saving materials, reducing the number of processes, improving joining efficiency, reducing weight, improving water retention, and reducing equipment costs.

Such welding technology is divided into electric welding and gas welding. Electric welding is a method of electrically heating a joint, and is divided into resistance welding, induction welding, and arc welding according to a heating method. The types of welding machines are inverter type and silicon controlled type. (SCR: Silicon Controlled Rectifier) and moving core type, but the use of inverter arc welding machine is expanding rapidly in recent years.

In this way, a welding machine for supplying power is used for welding, but a welding machine for industrial use is manufactured by forming a case panel in various forms in a large size and a large size.

In addition, similar industrial fields for forming industrial welder case panels are for mechanical devices, automobiles, various enclosures and doors, and architectural metal panels attached to the outer or inner walls of a building for the purpose of protecting and decorating the building. It is used for interior and exterior building materials. Such a building metal panel is manufactured to have a three-dimensional structure of a hexahedron with the bottom open by bending up, down, left, and right sides of the rectangular metal plate.

In particular, the metal sheet can be pressed and processed using a press forming mold. However, when the metal sheet is to be processed to have four corners as an example, when the radius of the four corners of the press forming mold is small, there is a problem that the metal sheet is torn during the processing of the metal sheet.

Thus, in the case of manufacturing a door using a conventional metal plate, for example, after chamfering the four corners of the metal plate, the four parts are bent vertically to form side portions. Then, the four side portions are welded to connect the four side portions.

In detail, when manufacturing a door that requires a sealing function, after chamfering the four corners of the metal plate, the four parts are bent vertically to form side parts, and then the four side parts are welded to connect the four side parts.

Then, after chamfering the boundary portion of the four side portions again, a part of the four side portions is folded inward to form a flange portion, thereby producing an outdoor door. According to this conventional processing method, since the four side parts of the sealing door are joined by welding, there is a problem that the foaming agent leaks when there is a portion that is not welded.

In addition, since the operator must weld the four side parts, a problem that takes a lot of time when manufacturing the door occurs.

Then, after chamfering the boundary portions of the four side portions again, a part of the four side portions is folded inward to form a flange portion. According to this conventional processing method, since the four side portions of the sealing door are joined by welding, If there is a part that is not welded, there is a problem that the foaming agent leaks. In addition, since the operator must weld the four side parts, a problem that takes a lot of time when manufacturing the door occurs.

In the conventional method, in manufacturing a rectangular parallelepiped metal panel, in order to facilitate bending of each side, a portion of each corner of the square metal plate is cut and then bent, and thus the cut portion is bent on each side. After losing, a separate caulking or welding is performed at the corners to prevent gaps in the edges generated by the incisions.

However, the metal panel manufactured by the process according to the conventional method as described above has a disadvantage in that the water tightness is inferior and the quality of mechanical strength or corrosion is easily degraded because the deformation of a material, shape or physical property is accompanied by heat generated during welding. there was.

In consideration of the manufacturing disadvantages of the conventional metal panel as described above, without preliminarily cutting the corners of the square metal plate, and pre-bending so that the unbended portions remain at the end of each side of the square metal plate, the method of pressing the edge using a forming roller Is being used.

This improved method has the advantage of forming corners in which two adjacent sides of the square metal plate are naturally connected without gaps, and manufacturing a metal panel having a one-piece structure with no gaps by cutting the stretched portion by pressing the forming roller. . A process diagram for manufacturing the gapless metal panel is shown in FIG. 1.

Figure 2 shows a perspective view showing the structure of the forming roller for the corner forming of the conventional metal panel.

In the structure of the forming roller for forming a corner of the conventional metal panel, the forming roller 2 is installed so that both ends are supported by the bearing 3 so as to be rotatable, and the forming roller 2 when forming the corner of the metal panel 1. Is configured to form corners of the metal panel by pressing the metal panel 1 while moving in a vertical direction from top to bottom.

However, the forming roller of the above structure can be smoothly formed of a plate of relatively soft material such as aluminum, but when forming a plate of a relatively strong material such as galvanized steel sheet, between the forming roller and the bearing supporting it Due to the play of the rollers, the forming roller is pushed finely, and thus the corners of the metal panel are not bent to form a perfect right angle, thereby causing a problem of product defects.

And, Figure 3 is for processing the corner curvature forming of the conventional metal panel, in order to perform the corner forming operation of the conventional metal panel, in order to bend the four corners of the panel by the operator to work repeatedly in the form of manual work There was an uncomfortable problem to be done.

In addition, in order to perform the corner forming work of the conventional metal panel, when the panel size is large, there was an inconvenient limitation that two or more workers should work together.

Due to this, the forming foaming frame is adjusted to the panel size according to the size of the panel for corner forming, and the side forming and the selective corner forming in various forms are simultaneously performed to simplify the process and to make panels of various sizes in one forming forming frame. There is an urgent need for an improved metal panel forming apparatus that can be used to increase utilization.

Public utility model No. 20-2013-0004475 Patent Publication No. 10-2013-0139021 Patent Publication No. 10-2010-0115185

The present invention has been made to solve the above problems, to provide a metal panel forming apparatus using a forming frame that can be easily fixed by changing the area in one forming frame to different panels. The purpose is.

In addition, another object of the present invention is to reduce the work time by simultaneously performing the corner forming and cutting operation of the side and round or right angles in the forming mold.

In addition, another object of the present invention is to be able to perform a side forming from a variety of angles to be able to produce a variety of products.

In addition, another object of the present invention is to be able to manufacture in various forms by changing the mold made of different shapes or curvature.

On the other hand, another object of the present invention is to make the production quality uniform by the fixing and forming work at the same time.

The case forming apparatus of the industrial welding machine using the variable forming mold according to an embodiment of the present invention, in the corner forming apparatus of the metal panel, is subjected to a fixed process after the variable adjustment to the size of the panel to be formed on the top of the forming mold A case forming apparatus for an industrial welder using a variable forming machine, characterized in that the side forming operation and the curvature corner and the 90 ° angled corner forming are selectively performed, and the cut portion formed by the corner forming is cut. It is done.

And, forming a corner block for forming the corner of the panel on the upper part of the forming frame, a fixed block which is located in one of the corners but does not move, in response to the remaining fixed block in the horizontal and vertical direction in the spindle operation manner Characterized in that the case forming apparatus of the industrial welder using a variable forming mold, characterized in that composed of a plurality of moving blocks each moving.

In addition, the fixed block is installed so that the horizontal axis of the horizontal motor and the vertical axis of the vertical motor penetrate to different heights, but free rotation, and is installed to slide the moving block in the state supported by the forming frame spirally fastened to the horizontal axis and the vertical axis. In the outside of the fixed block and the moving block for industrial use using a variable forming frame, characterized in that the roller forming the roller forming a different form so as to implement the corner forming after the side forming in a round or right angle form A case forming device of a welder is featured.

In addition, the roller unit is connected to the motor and the fixed block and the moving block at both ends of the roller, but is connected to the slider formed with a hole in the center is installed to be fixed to the fixed block or the moving block at the top of the forming frame, the roller Is moved horizontally by the operator's manpower along the slider, and install a lifting actuator for lifting and lowering the motor and the roller, the roller is to form a curvature roller or right angle to form a round corner of the panel It characterized in that the case forming apparatus of the industrial welding machine using a variable forming mold, characterized in that the right angle roller for installation spaced apart in a vertical arrangement.

In addition, a plurality of moving rails installed and moved at the end of the forming mold along the transverse and longitudinal directions on each of the upper sides of the forming mold, horizontally moving along the moving rail, and moving the side surfaces of the panel. An outer block moving up and down to form an outer end, an operation block installed on the moving rail rearward to which the outer block is disposed, and installed on an upper portion of the operation block to move horizontally and apply hydraulic pressure to the outer block to operate up and down An actuator to be installed, and a case forming apparatus for an industrial welder using a variable forming mold, characterized by constituting an inner block that supports a side inner end of the panel and moves horizontally along a moving rail in response to the outer block.

According to an embodiment of the present invention, the area in one forming mold is variable to suit different panels, so it is possible to simply fix and form a work to reduce labor costs.

In addition, by simultaneously performing the corner forming and the cutting operation of the side and round or angular form in the forming mold, the work time is reduced and productivity is improved.

In addition, the side forming can be performed at various angles to produce a variety of products, there is an effect that does not need to operate the product diversification and production equipment separately.

In addition, by changing the mold made of different shapes or curvature can be produced in a variety of forms there is an effect that can enhance the product competitiveness.

On the other hand, since the fixing and forming work is performed at the same time, the production quality is uniform, thereby reducing the defective rate and improving reliability.

1 is a process for forming a metal panel according to the prior art by welding;
2 is a process of forming a corner of the metal panel according to the prior art by a rolling method,
3 is a process of forming a curvature corner of the metal panel according to the present invention,
4 is a plan view of a case forming apparatus of an industrial welding machine using a variable forming mold according to the present invention;
5 is a plan view of a state in which a moving block is moved in accordance with the size of the panel in the case forming apparatus of the industrial welding machine using a variable forming mold according to the present invention;
6 is a partial cross-sectional view of the forming frame, the corner block and the side forming unit, the operating unit according to the present invention;
7 to 10 is a process of forming the side of the panel by the side forming the valve and the operation portion,
11 is a planar projection process for forming the corner of the panel by the corner block and the roller according to the present invention,
12 is a side projection process of forming a corner of the panel by the corner block and the roller according to the present invention,
Figure 13 is a process diagram for removing the elongated portion of the corner forming is completed by the roller according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Like parts are designated by like reference numerals throughout the specification.

As shown in Figures 4 to 6, 11 and 12, the configuration of the present invention will be described below with reference to the accompanying drawings, it relates to a corner forming apparatus of a metal panel lies on top of the forming mold (10) After the paper is variably adjusted to the size of the panel (1) to be formed, the side forming process undergoes a fixing process and the curvature corner and the 90 ° angled corner forming are selectively performed to cut the increased portion caused by the corner forming. The variable forming machine 100 is configured.

A corner block 20 for forming corners of the panel 1 is formed on the forming mold 10 of the variable forming machine 100.

Located at one corner of the corner block 20, but is not fixed to the fixed block 21 is installed to be fixed in the forming mold (10).

Corresponding to the remaining fixed blocks 21, a plurality of moving blocks 22 are respectively installed to move in a spindle operation manner along the horizontal and vertical directions.

Sides of the fixed block 21 and the movable block 22 are installed in a detachable manner while meeting a pair of auxiliary blocks 28 in an orthogonal arrangement to form a corner of the panel 1 at right angles.

The corners for forming the fixed block 21 and the movable block 22 may be formed in a round shape to roundly form the corners of the panel 1, and in the case of installing the auxiliary block 28 of the panel 1. By forming the corners at right angles, the block protrusions 28a of the auxiliary block 28 may be installed and dismantled through the block grooves 29 formed on the outer surface of the fixed block 21 and the movable block 22. Configure it to be.

On the outside of the fixed block 21 and the moving block 22 is formed a roller unit 50 for forming the roller 51 of different shapes so that the corner forming after the side forming in a round or right angle can be implemented Install.

The movable block 22 is installed to slide on the upper surface of the forming mold 10.

The outer edges of the fixed block 21 and the movable block 22 form a curvature stage 27 for smooth forming of the panel 1 in planar projection and side projection.

The fixed block 21 is installed so that the horizontal axis 24 of the horizontal motor 23 and the vertical axis 26 of the vertical motor 25 penetrate to different heights but freely rotate.

The horizontal motor 23 and the vertical motor 25 are installed in an orthogonal arrangement on the outer side of the fixed block 21. In the present invention, one horizontal motor 23 and one vertical motor are installed.

Spirally fastened to the horizontal axis 24 of the horizontal motor 23 and the vertical axis 26 of the vertical motor 25 is installed to slide in a state supported by the forming mold 10, the horizontal axis 24 is fixed block It is connected to the horizontal motor 23 by penetrating freely at the upper side of the 21, the vertical axis 26 is connected to the vertical motor 25 by penetrating freely at the lower side of the fixed block 21.

The horizontal axis 24 and the vertical axis 26 are spirally fastened to operate in a spindle manner on the horizontal axis 24 and the vertical axis 26 while being mounted on the forming mold 10 so that the horizontal axis 24 or the vertical axis 26 is formed. When rotated in the forward and reverse directions, the rotational force is converted into the horizontal movement force while being supported by the forming mold 10 so as to slide.

The corner block 20 may be used by mixing different corner blocks 20 having curvature stages 27 having different sizes.

The corner block 20 is connected to the forming mold 10 in a terminal contact manner to operate in the form of an electromagnet to generate a separate electromagnetic force to be fixed by the electromagnet magnetic force when the panel 1 is placed on top of the corner block 20. Electromagnet devices for the purpose of installation can be installed.

The upper surface of each of the forming mold 10 is installed at the end of the forming mold 10 along the horizontal direction and the longitudinal direction to move and install a plurality of moving rails 31 extending inwardly of the forming mold 10. .

The moving rail 31 is moved by an operating motor 35 controlled by a separate control unit along the guide 34 installed at the lower end at the end of the forming mold 10 in the form of a depression when projecting from the side.

The outer block 32 is moved horizontally along the moving rail 31 and moves up and down to form the outer end of the side of the panel 1.

The side forming unit 30 is installed as an inner block 33 supporting the inner side end of the panel 1 and horizontally moving along the moving rail 31 in response to the outer block 32.

The outer block 32 is formed of a vertical end 32a and a horizontal end 32b in a memory form, so that the vertical end 32a contacts the panel 1 first when forming the panel 1 and the horizontal end 32b. ) Bends to complete the forming.

The movement and positioning of the outer block 32 and the inner block 33 can be set by the operator to manually move according to the area of the panel 1 and can be fixed by a separate clamping method or bolt fastening method. .

The operation block 41 is installed on the movable rail 31 to the rear in which the outer block 32 is disposed.

The movement and position selection of the operation block 41 is made according to the movement and position selection of the outer block 32 and may be fixed by a separate clamping method or bolt fastening method.

The operating unit 40 is formed by an actuator 42 installed on the upper side of the operating block 41 and horizontally moving and operating up and down by applying hydraulic force to the outer block 32.

The actuator 42 is connected to the upper end of the movable block 22 by the end of the loader 45 which is pulled out in the vertical direction from the cylinder 44 installed in the frame 43 connected to the outer block 32. do.

In addition, the outer portion of the panel 1 supported by the corner block 20 on the lower portion of the forming mold 10 of the variable forming machine 100 by using the roller unit 50, the remaining portion that is stretched when bending the grinder method Or by using a cutting method to form a removal unit 60 that the operator manually removes.

The roller unit 50 is connected to the motor 52, the fixed block 21 and the movable block 22 at both ends of the roller 51, but is connected by a slider 53 formed with a hole in the center of the forming frame ( 10 is fixed to the fixed block 21 or installed to move with the moving block 22 at the top.

The roller 51 may move in the horizontal direction by the operator's manpower along the slider 53, the lifting actuator 54 is installed on the motor 52 to move up and down.

The roller 51 is installed with a curvature roller 51a for forming a corner of the panel 1 in a round shape or a right angle roller 51b for forming in a right angle spaced apart in a vertical arrangement.

When the roller 51 is projected from the side, the curvature roller 51a is positioned on the upper side, and the right angle roller 51b is spaced apart from the curvature roller 51a at intervals into which the panel 1 can be inserted. 51a) and orthogonal roller 51b move simultaneously by the elevating operation | movement of the elevating actuator 54. As shown in FIG.

The curvature roller 51a is recessed to have a central curvature, and the right angle roller 51b is formed to be recessed to form a 90 ° center.

That is, when the corners of the panel 1 are rounded, they are pressed by the curvature rollers 51a, and when the corners of the panel 1 are produced at right angles, they are pressurized by using the rectangular rollers 51b. It may be desirable to partially incline the edges of the panel 1 to prevent tearing in 1).

Looking at the state of use of the case forming apparatus of the industrial welding machine using a variable forming mold configured as described above are as follows.

As shown in FIGS. 4 to 13, the variable forming machine 100 moves the moving block 22 of the corner block 20 according to the area of the panel 1 to be formed, the horizontal motor 23 and the horizontal motor 23. When the vertical motor 25 is operated, the movable block 22 moves along the rotation of the horizontal axis 24 and the vertical axis 26 while moving from the upper portion of the forming mold 10 by the spindle movement method by the spiral connection. It is convenient to work by adjusting the interval.

That is, according to the present invention, the position of the corner block 20 can be adjusted in a semi-automatic form according to the size of the panel 1, so that the size of the panel 1 is not limited.

At this time, the positioning of the moving block 22 can control the rotation speed of the horizontal motor 23 and the vertical motor 25 by using a separate control unit can be adjusted by the operator visually.

When the position adjustment of the corner block 20 is completed, the moving rail 31 moves to the position where the side forming work starts.

Thereafter, the outer block 32, the operation unit 40 and the inner block 33 set the position at the end side of the correct panel 1 to perform the side forming of the panel 1.

Next, by operating the operating unit 40 to operate the loader 45 to be drawn out in the downward direction from the cylinder 44 so that the side end of the panel 1 is bent by the vertical end (32a) in the present invention While moving the moving rail 31 along the longitudinal direction of the panel 1

The side surface of the panel 1 is bent downward by the vertical end 32a repeatedly.

Subsequently, when forming the outer surface of the panel 1 of the outer block 32, the inner block 33 supports the inner surface of the panel 1 to form a smooth forming.

When the side end of the panel 1 is vertically formed by the vertical end 32a of the outer block 32 to some extent, the outer block 32 is completely lowered by the loader 45 and the horizontal end 32b is completed. ) And the vertical end 32a of the side end of the panel 1 is completely bent, thereby completing the forming simply.

That is, in the present invention, at the four sides in the state fixed to the corner block 20 during the side forming of the panel 1, the work speed is fast and the quality of the side forming is uniform and excellent.

Subsequently, the side forming of the panel 1 is completed and the corners of the remaining panel 1 are formed in a curvature form by the roller unit 50. In detail, the panel 1 is formed using the roller unit 50. In order to form a corner of the curvature, first, the elevating actuator 54 raises the curvature roller 51a of the roller 51 to a position higher than the corner end of the panel 1-> along the slider 53. The curvature roller 51a of the roller 51 moves horizontally-> the operation of the motor 52, and the curvature roller 51a of the roller 51 descends by rotation-> the operation of the lifting actuator 54, panel 1 Curvature corners.

On the other hand, the side of the panel (1) is completed and the corner of the remaining panel (1) is formed in a right angle form by the roller unit 50, when the preparation process will be described using the panel (using the roller unit 50) In order to form the corners of 1) at right angles, the edges of the panel 1 may be partially cut and prepared, and the block protrusions 28a may be inserted into the block grooves 29 of the fixed block 21 and the movable block 22. 28), and then the right angle roller 51b of the roller 51 is raised to a position higher than the corner end of the panel 1 due to the synergistic action of the elevating actuator 54-> along the slider 53 The right angle roller 51b of the 51 is moved horizontally-> the operation of the motor 52, and the right angle roller 51b of the roller 51 is lowered by the operation of the rotation-> the lifting actuator 54, the corner of the panel 1 Form at right angles.

When the corners of the panel 1 are formed in a rounded shape or a right angled shape by using the roller part 50, the curvature rollers 51a and the right angle rollers 51b move together for the horizontal direction and the lowering together.

Next, the panel 1 according to the corner forming operation by the roller unit 50 is partially extended to the end of the workbench 11 protrudes in the present invention, the operator using the removal unit 60 such as a grinder Cutting by the grinder method is completed to form and cut the panel (1).

Such, the variable-variable forming machine 100 of the present invention is the fixing of the panel 1 for forming and side forming, corner forming, the cutting process is all made in one forming frame 10, the work time is shortened and the quality is It is uniform and has the feature of achieving standardization of the product.

In the above description with reference to the accompanying drawings, the present invention was described with a focus on a specific shape and direction, but the present invention is capable of various modifications and changes by those skilled in the art, such modifications and changes are the scope of the present invention. Should be interpreted as being included in.

1: Panel 10: Forming Frame
20: corner block 21: fixed block
22: moving block 23: horizontal motor
24: horizontal axis 25: vertical motor
26: vertical axis 27: curvature stage
28: auxiliary block 28a: block protrusion
29: Block Home
30: side forming part 31: moving rail
32: outer block 32a: vertical end
32b: horizontal stage 33: inner block
34: guide 35: working motor
40: operation part 41: operation block
42: actuator 43: frame
44: cylinder 45: loader
50: roller 51: roller
51a: curvature roller 51b: right angle roller
52: motor 53: slider
54: lifting actuator 60: removing unit
100: Variable Forming Machine

Claims (5)

In the corner forming apparatus of a metal panel,
After forming the side of the panel (1) to be formed on the top of the forming frame (10) is variablely adjusted and then fixed side forming process and curvature corner and 90 ° angled corner forming after corner corner forming Configured to cut the elongated portion caused by
A corner block 20 for forming a corner of the panel 1 is formed on the upper part of the forming mold 10, wherein the fixed block 21 is located at one corner but does not move.
Corresponding to the remaining fixed block 21 to form a plurality of moving blocks 22 to move in the spindle operation in the horizontal and vertical directions, respectively,
Side of the fixed block 21 and the moving block 22 is configured to be installed in a removable manner to meet a pair of auxiliary blocks 28 in an orthogonal arrangement to form a corner of the panel (1) at right angles. Case forming device for an industrial welding machine using a variable forming machine.
delete According to claim 1, The fixed block 21 is installed so that the horizontal axis 24 of the horizontal motor 23 and the vertical axis 26 of the vertical motor 25 penetrate to different heights, but free rotation,
Spirally fastened to the horizontal axis 24 and the vertical axis 26 is installed to slide the moving block 22 in a state supported by the forming mold 10,
On the outside of the fixed block 21 and the movable block 22 is formed a roller unit 50 for forming rollers 51 having different shapes so that corner forming may be performed in a round or right angle after side forming. Case forming apparatus for an industrial welder using a variable forming mold, characterized in that the configuration.
According to claim 3, The roller unit 50 is connected to the motor 52, the fixed block 21 and the moving block 22 at both ends of the roller 51, the center of the slider 53 is formed with a hole Connected to be fixed to the fixed block 21 at the top of the forming mold 10 or installed to move with the movable block 22,
The roller 51 moves along the slider 53 in the horizontal direction by the manpower of the operator, and installs a lifting actuator 54 for raising and lowering the motor 52 and the roller 51.
The roller 51 is a variable type, characterized in that the curvature roller 51a for forming a corner of the panel 1 in a round form or a right angle roller 51b for forming in a right angle form spaced apart in a vertical arrangement Case forming device for industrial welding machine using forming machine.
According to claim 1, wherein the upper surface of each of the forming mold 10 is installed at the end of the forming mold 10 in the transverse direction and longitudinal direction and move a plurality of moving rails extending inwardly of the forming mold (10) (31),
An outer block 32 moving horizontally along the movable rail 31 and moving up and down to form an outer end of the side of the panel 1;
The operation block 41 is installed on the movable rail 31 to the rear in which the outer block 32 is disposed,
An actuator 42 installed at an upper portion of the operation block 41 to move horizontally and to operate up and down by applying hydraulic force to the outer block 32;
The industrial welding machine using a variable forming mold, characterized in that the inner block 33 for supporting the inner end of the side of the panel 1 corresponding to the outer block 32 and horizontally moving along the moving rail 31. Case forming device.

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