KR102297154B1 - Automatic hot forming device for pipe clamp - Google Patents

Abstract

An objective of the present invention is to provide an automatic hot forming device for a pipe clamp which can shorten work time and improve quality. The automatic hot forming device for a pipe clamp comprises: a tray on which metal plates are stacked; a transport roller transporting the metal plates at a fixed speed; a tunnel-type heat treatment furnace heat-treating the metal plates transported by the transport roller; a press unit pressing the metal plates completely heat-treated while passing through the tunnel-type heat treatment furnace to form a pipe clamp; an aligning pallet on which the pipe clamp finished by the press unit is aligned in a vertically erected state; a first automatic aligning unit lifting the metal plates stacked on the tray one at a time to align the metal plates on the transport roller; a second automatic aligning unit lifting the metal plates passing through the tunnel-type heat treatment furnace to move the metal plates to the press unit to align the metal plates at a set position of the press unit; and a third automatic aligning unit lifting the pipe clamp formed by the press unit to align the pipe clamp to be vertically erected on the aligning pallet. The forming work of the pipe clamp is automatically performed.

Description

Pipe clamp automatic hot forming device {AUTOMATIC HOT FORMING DEVICE FOR PIPE CLAMP}

The present invention relates to a pipe clamp automatic hot forming apparatus that heat-treats and press-works a metal plate to form a semi-circular shape to match the outer surface of the pipe.

In general, a pipe clamp is formed in a semicircular shape identical to the external appearance of the pipe by performing press working after heat-treating a metal plate to form a formable shape.

These pipe clamps heat the metal plate in the heat treatment furnace for a certain period of time, then take the metal plate out of the heat treatment furnace using a separate transfer device such as a forklift, and then move it to the press working device to perform the press process in the press working device, and the press process is completed. When it is completed, it is again transferred to an alignment pallet using a forklift.

In this way, in the conventional pipe clamp forming process, the metal plates are heated at once in a batch-type heat treatment furnace and the heating time is long, so the working time becomes longer. However, for metal plates that are pressed late, quality problems such as decarburization may occur due to excessive heat treatment time.

In addition, since all processes are performed by hand, the working time is prolonged, and there may be problems in quality and worker safety.

Registered Patent Publication No. 10-1387004 (April 14, 2014) Registered Patent Publication No. 10-1897496 (September 05, 2018)

Therefore, an object of the present invention is to automatically put a metal plate into a tunnel-type heat treatment furnace, and automatically guide the heat-treated metal plate to the press unit, and automatically align the pipe clamp on which the press operation is completed. To provide a pipe clamp automatic hot forming device that can reduce time and improve quality.

In order to achieve the above object, an automatic hot forming apparatus for pipe clamp of the present invention includes a tray on which metal plates are stacked, a transport roller for transporting the metal plate so that the speed can be adjusted according to the heat treatment time of the metal plate, and the metal plate transferred to the transport roller A tunnel-type heat treatment furnace for heat treatment, a press part for forming a pipe clamp by pressing a metal plate on which heat treatment is completed while passing through the tunnel-type heat treatment furnace, and an alignment pallet in which the pipe clamp completed in the press part is aligned in a vertically standing state And, a first automatic alignment unit for lifting the metal plates stacked on the tray one by one and aligning them with a transfer roller, and a second automatic aligning the metal plates that have passed through the tunnel type heat treatment furnace to move to the press unit and align the press unit at a set position It includes an alignment unit, and a third automatic alignment unit that lifts the pipe clamp formed in the press unit and aligns it vertically on the alignment pallet.

The conveying roller is located in front of the tunnel type heat treatment furnace and includes a front conveying roller on which a metal plate is placed, a heat treatment conveying roller located inside the tunnel type heat treatment furnace, and a rear side of the tunnel type heat treatment furnace where the heat treatment is completed. It includes a conveying roller, wherein the front conveying roller, the heat treatment conveying roller and the rear conveying roller are arranged in a line, and the press unit may be arranged in a line behind the rear conveying roller.

The first automatic alignment unit includes a first articulated robot that moves the metal plates stacked on the tray with a transport roller, and a transport roller mounted on the first articulated robot to lift the metal plates stacked on the tray one by one using magnetic force. It may include an electromagnet holder that releases the magnetic force when seated on the.

The electromagnet holder includes a bracket fixed to the first articulated robot, a connecting plate bolted to a lower surface of the bracket, an electromagnet member fixed to both sides of the connecting plate and contacting a metal plate to generate a magnetic force; It may include a damping unit mounted in the center of the plate to generate a signal so that power is applied when the electromagnet member comes into contact with the metal plate and to act as a buffer when the metal plate comes into contact with the electromagnet member.

The second automatic alignment unit includes a pair of moving members disposed at regular intervals on both sides of the rear transfer roller located at the rear of the tunnel type heat treatment furnace and moving linearly from the rear transfer roller to the press unit, and the moving member A hydraulic cylinder mounted on the movable member to lift the metal plate from the rear conveying roller and put down the metal plate on the press unit when the moving member is moved to the press unit, and a hydraulic cylinder mounted on the moving member to rotate and drive the operating arm; It may include a driving unit for moving.

The third automatic alignment unit is a second articulated robot that moves the pipe clamp molded in the press unit to the alignment pallet, and is mounted on the second articulated robot to fix the pipe clamp and the pipe clamp is vertically erected on the alignment pallet. and a holding unit for releasing the fixing when aligned in a state, wherein the holding unit is mounted on both sides of a fixing bracket fixed to the second articulated robot, and the fixing bracket, respectively, and is fixed to both edges of the curved part of the pipe clamp It may include a pair of fixing devices.

As described above, in the pipe clamp automatic hot forming apparatus of the present invention, the first automatic aligning unit automatically puts the laminated metal plate on the tray into the tunnel type heat treatment furnace, and the heat-treated metal plate is automatically pressed by the second automatic aligning unit. Guided to the part and the press work is completed, the pipe clamp can be automatically aligned on the alignment pallet by the third automatic alignment unit, thereby shortening the working time and improving the quality.

1 is a block diagram of a pipe clamp automatic hot forming apparatus according to an embodiment of the present invention.
2 is a perspective view of the electromagnet head of the first automatic alignment unit according to an embodiment of the present invention.
3 is a cross-sectional view of the electromagnet head of the first automatic alignment unit according to an embodiment of the present invention.
4 is a cross-sectional view of a second automatic alignment unit according to an embodiment of the present invention.
5 is an operation state diagram of a second automatic alignment unit according to an embodiment of the present invention.
6 is a perspective view of a holding unit of a third automatic alignment unit according to an embodiment of the present invention.
7 is a front view of the holding unit of the third automatic alignment unit according to an embodiment of the present invention.
8 is a perspective view of a fixing device of a second automatic alignment unit according to an embodiment of the present invention.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings. In this process, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator.

1 is a block diagram of a pipe clamp automatic hot forming apparatus according to an embodiment of the present invention.

A pipe clamp automatic hot forming apparatus according to an embodiment includes a tray 10 on which flat plate-shaped metal plates 100 for manufacturing a pipe clamp are disposed in a stacked state, and a transport roller for transporting the metal plates 100 at a constant speed. (20, 22, 24) and a tunnel-type heat treatment furnace 30 for heating and heat treating the metal plate 100 transferred to the conveying rollers 20, 22, 24, and a metal plate on which the heat treatment is completed in the tunnel-type heat treatment furnace 30 ( 100) includes a press unit 40 for forming a pipe clamp by performing a press operation, and an alignment plate 50 in which the pipe clamp completed in the press unit 40 is aligned in a vertically standing state.

On one side of the tray 10, a first automatic alignment unit 60 for lifting the metal plates 100 stacked on the tray 10 one by one and aligning them with the front conveying roller 20 is provided, and the rear conveying roller 24 of A second automatic alignment unit 70 for lifting the metal plate 100 discharged from the tunnel type heat treatment furnace 30 and moving it to the press unit 40 to align it at a set position of the press unit 40 is provided on one side, and the press On one side of the part 40, a third automatic alignment unit 80 for lifting the piping clamp 110 on which the press work is completed and vertically standing on the alignment pallet 50 is provided.

The pipe clamp 110 is formed in a semicircular shape equal to the outer diameter of the pipe in the center so as to be wrapped around the outer surface of the pipe, and both ends thereof are formed in a straight shape and disposed at regular intervals in the pipe to surround the pipe and connect the pipe support and the pipe plays a role

The transfer rollers 20, 22, and 24 are located in front of the tunnel type heat treatment furnace 30 and guide the metal plate 100 to the tunnel type heat treatment furnace 30. The front conveying roller 20 and the tunnel type heat treatment furnace 30 inside It is located in the heat treatment conveying roller 22, which is heat-treated while the metal plate is moved at a set speed, and the rear conveying roller 24 through which the heat-treated metal plate 100 is discharged, which is located at the rear of the tunnel-type heat treatment furnace 30 and is heat-treated, The front conveying roller 20, the heat treatment conveying roller 22 and the rear conveying roller 24 are arranged in a line.

The tunnel type heat treatment furnace 30 has front and rear openings to allow the metal plate 100 to pass through, and a heater 32 for heat treatment of the metal plate 100 is provided therein, and conveying rollers 20, 22, 24 ) and the temperature of the heater 32 may be set according to the heat treatment time that is changed according to the material, thickness and size of the metal plate.

The press unit 40 includes a pair of supports arranged at regular intervals so that both edges of the metal plate 100 are supported, and the central portion of the metal plate seated on the support and arranged to be movable in a straight line in the vertical direction to form a semicircle. It includes a pressing member formed in a semicircular shape to be molded.

The first automatic alignment unit 60 is composed of a multi-joint first articulated robot 62 that lifts the metal plates 100 stacked on the tray 10 one by one and puts them in the correct position of the front transfer roller 20 and , the first articulated robot 62 includes an electromagnet holder 64 that lifts the metal plate 100 using magnetic force and releases the magnetic force when seated on the front transfer roller 20 .

As shown in FIGS. 2 and 3 , the electromagnet holder 64 includes a bracket 120 mounted on the first articulated robot 62 , a connection plate 122 bolted to the lower surface of the bracket 120 , and , and an electromagnet member 124 fixed to both sides of the connecting plate 122 and in contact with the metal plate 100 to generate a magnetic force.

In the center of the connecting plate 122 , when the electromagnet member 124 comes into contact with the metal plate 100 , a signal is generated so that power is applied, and when the metal plate 100 comes into contact with the electromagnet member 124 , a damping action is performed. Unit 130 is mounted.

In this first automatic alignment unit 60, when the first articulated robot 62 is operated and the electromagnet member 124 is in contact with the metal plate 100 stacked on the tray 10, the damping unit 130 is powered. By applying a signal, the power is connected and magnetic force is generated. Then, the metal plate 100 is attached to the electromagnet member 124 by magnetic force, and the first articulated robot 62 is operated to move the metal plate 100 to the front transfer roller 20, and to the front transfer roller 20. When the metal plate 100 is seated in a predetermined position, the magnetic force of the electromagnet member 124 is released so that the metal plate 100 is aligned with the front conveying roller 20, and the tunnel type heat treatment furnace 30 along the front conveying roller 20. guided

As shown in FIGS. 4 and 5, the second automatic alignment unit 70 is disposed at regular intervals on both sides of the rear feed roller 24 and moves from the rear feed roller 24 to the press unit 40. A pair of moving members 72 to become, and installed on the moving member 72, lift the metal plate 100 from the rear conveying roller 24, and when the moving member 72 is moved to the press unit 40, the press unit ( 40) an operating arm 74 for aligning the metal plate 100, a hydraulic cylinder 76 mounted on the moving member 72 to rotationally drive the operating arm 74, and a linear movement of the moving member 72 a drive unit 78 .

On the lower surface of the moving member 72 , a guide roller 142 that moves linearly along the rail unit 140 installed on the floor is mounted, and the driving unit 78 is a driving motor 144 mounted on the lower surface of the moving member 72 . ) is mounted between the drive shaft and the rail unit 140 so as to be linearly moved along the rail unit 140 by the rotation of the driving motor 144 .

The driving unit 78 may be applied in various driving methods such as a rack and pinion type, a driving roller type, a belt type, and the like.

The operating arm 74 includes a first hinge part 150 that is rotatably mounted on the side surface of the movable member 72, and a support arm extending to one side of the first hinge part 150 on which the metal plate 100 is placed. The arm part 152 and the first hinge part 150 extend to the other side, are formed to be inclined at a predetermined angle with the support arm part 152, and the second hinge part 155 to the operation rod 158 of the hydraulic cylinder 76. It includes a connection arm portion 154 that is rotatably connected by the.

In addition, a heat-resistant support plate 156 is mounted on the upper surface of the support arm part 152 to withstand the heat of the heat-treated and heated metal plate 100 .

The hydraulic cylinder 76 is pivotally connected to the movable member 72 by the third hinge part 157 to prevent interference when the operating arm 74 is rotated around the first hinge part 150 . prevent.

When the operation rod 158 of the hydraulic cylinder 76 is advanced, the connecting arm part 154 to which the operation rod is connected is moved upward, and the support arm part 152 is moved downward to maintain the folded state. And, when the operation rod 158 of the hydraulic cylinder 76 is retracted, the connecting arm part 154 moves downward, and the support arm part 152 moves upward, so that the two support arm parts 152 are They are placed facing each other so as to be horizontal.

The moving member 72 is disposed on both sides of the rear conveying roller 24 at a predetermined interval and linearly moved. Since the distance between the moving member 72 and the rear conveying roller 24 is small, the support arm part 152 It should not interfere with the rear conveying roller 24 when it is moved in the downward direction. To this end, the operating arm 74 is rotatably supported by the movable member 72 by the first hinge unit 150 so that the support arm 152 is sufficiently moved downward, and the operating arm 74 and the hydraulic cylinder are rotatably supported. Between (76) is hinged by a second hinge part 155, and the hydraulic cylinder 76 is hinged to the movable member 72 by a third hinge part 157 and rotates by three hinge parts. This allows the support arm 152 to sufficiently move downward in a narrow space.

Looking at the action of the second automatic alignment unit 70 configured in this way, the operation rod ( 158 is actuated to retract to rotate actuation arm 74 . Then, the pair of support arm parts 152 are disposed to face each other so as to be level with each other, and the metal plate 100 is placed on the support arm part 152 .

In this state, when the driving motor 144 is operated, the moving member 72 is moved linearly by the driving unit 78 and arrives at a predetermined position of the press unit 40, the hydraulic cylinder 75 is operated and a pair of bearings The arm part 152 is rotated downward and the metal plate 100 is aligned at a predetermined position of the press part 40 . And the moving member 72 is returned to the original position with the rear feed roller 24 to prepare to move the next metal plate (100).

In this way, the second automatic alignment unit 70 can automatically align the metal plate 100 discharged from the tunnel type heat treatment furnace 30 to a predetermined position of the press unit 40 after automatically lifting, thereby reducing the working time. And, it is possible to precisely align the press unit 40 at a predetermined position, thereby improving the quality.

The third automatic alignment unit 80 includes a second articulated robot 82 and a second articulated robot 82 for moving the pipe clamp 110 on which the press work is completed in the press unit 40 to the alignment pallet 50 . ), the second articulated robot 82 lifts the pipe clamp 110 and firmly holds the pipe clamp 110 so that the pipe clamp 110 is aligned in a vertically erected state on the alignment pallet 50 a holding unit 84 .

6 to 8 , the holding unit 84 is mounted on both sides of the fixing bracket 150 fixed to the second articulated robot 82 and the fixing bracket 150 , respectively, and the pipe clamp 110 . ) includes a pair of fixing devices 160 to hold both sides

The pair of fixing devices 160 have the same structure and are operated in the same manner to hold both edge portions of the arc-shaped curved portion of the pipe clamp 110 , so that the pipe clamp 110 is stably fixed.

The fixing bracket 150 is formed in the center and extends to both sides of the first bracket part 152 to which the second articulated robot 82 is fixed, and the first bracket part 152 to provide a pair of clamping devices 160 . includes a second bracket part 154 on which is mounted.

The fixing device 160 includes a mounting panel 162 mounted on the fixing bracket 150 and a hydraulic cylinder fixed to the rear of the mounting panel 162 and having an operation rod 168 drawn out to the front of the mounting panel 162 ( 164), a connecting rod 172 fixed to the front of the mounting panel 162 and formed in a bar shape having a predetermined length, is mounted on the end of the connecting rod 172 and is in contact with the lower surface of the pipe clamp 110 a support rod 174 to be used, a cylindrical member 170 fixed to the connecting rod 172 and formed in a cylindrical shape, into which the operating rod 168 of the hydraulic cylinder 164 is linearly inserted, and the cylindrical member 170 ) is inserted movably in a straight line, is connected to the operation rod 168, is drawn out to the front of the cylindrical member 170, and a moving rod 176 that is in contact with the upper surface of the pipe clamp 110, and the end of the support rod 174 It is mounted in a direction perpendicular to the support rod 174 and the pipe clamp 110 disposed between the moving rod 176 to prevent the separation plate 178 is included.

Here, the distance between the hydraulic cylinder 164 and the pipe clamp 110 is increased by the cylindrical member 170 and the moving rod 176 so that the hydraulic cylinder 164 is affected by the heat of the pipe clamp 110 . prevent.

The hydraulic cylinder 164 is fixed to the rear of the mounting panel 162 , and the operating rod 168 is drawn out to the front of the mounting panel 162 through a through hole formed in the mounting panel 162 , and is attached to the cylindrical member 170 . is inserted

The moving rod 176 is slidably inserted into the inner surface of the cylindrical member 170, and a fastening groove 186 is formed at one end thereof, and the end of the operation rod 168 is screwed into the operation rod 168. moves in a straight line as

On one side of the separation prevention plate 178, an inclined hole portion 184 having a form in which the inner diameter becomes narrower in the depth direction is formed, and at the end of the moving rod 176, a conical portion 182 inserted into the inclined hole portion 184 is formed. Formed, when the moving rod 176 is drawn out from the cylindrical member 170 and advanced, the conical portion 182 is inserted into the inclined hole portion 184 and the end of the moving rod 176 is fixed when the pipe clamp 110 is moved. do

The operation of the third automatic alignment unit 80 according to an embodiment of the present invention configured as described above will be described below.

When the press unit 40 presses the heat-treated metal plate 100 to form the pipe clamp 110 , the second articulated robot 82 is operated to align the holding unit 84 with the pipe clamp 110 . .

When the holding unit 84 is aligned with the pipe clamp 110 so that a pair of support rods 174 of the holding unit 84 are positioned on the lower surfaces of both edges of the pipe clamp 110, the hydraulic cylinder 164 is operated and operated The rod 168 is advanced, and the moving rod 176 connected to the operation rod 168 is drawn out to the cylindrical member 170 and advanced to the upper surface of the pipe clamp 110 , and the conical portion 182 of the moving rod 176 is detached. It is inserted into the inclined hole 184 of the prevention plate 178 .

Then, the support rod 174 is supported on the lower surface of the pipe clamp 110 , and the moving rod 176 is supported on the upper surface thereof, and the separation prevention plate 178 is supported on the side thereof and fixed to the holding unit 84 . When this operation is completed, the second articulated robot 82 lifts the pipe clamp 110 and moves it to the alignment pallet 50 and then aligns it to stand vertically on the alignment pallet 50 .

At this time, the hydraulic cylinder 164 is operated and the moving rod 176 is retreated to release the fixing of the pipe clamp 110 after placing it vertically on the alignment pallet 50, and then the holding unit in the pipe clamp 110 ( 84) is separated and returned to its original state.

In this way, the third automatic alignment unit 80 automatically moves the pipe clamp 110 from the press unit 40 to the alignment pallet 50 by the second articulated robot 82, and the holding unit 84 By automatically fixing the pipe clamp 110 and automatically releasing the fixing after moving to the alignment pallet 50, the operation is easy and the working time can be shortened.

In the above, the present invention has been illustrated and described with examples of specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and within the scope of not departing from the spirit of the present invention, common knowledge in the technical field to which the present invention belongs Various changes and modifications will be possible by those who have

10: tray 20, 22, 24: feed roller
30: tunnel type heat treatment furnace 40: press unit
50: alignment palette 60: first automatic alignment unit
62: first articulated robot 64: electromagnet holder
70: second automatic alignment unit 72: moving member
74: actuating arm 76: hydraulic cylinder
78: driving unit 80: third automatic alignment unit
82: second articulated robot 84: holding unit

Claims (9)

a tray on which metal plates are laminated;
a conveying roller for conveying the metal plate;
a tunnel-type heat treatment furnace for heat-treating the metal plate transferred to the transfer roller;
a press unit for forming a pipe clamp by pressing the heat-treated metal plate while passing through the tunnel-type heat treatment furnace;
an alignment pallet in which the pipe clamps completed in the press unit are aligned in a vertically erected state;
a first automatic aligning unit lifting the metal plates stacked on the tray one by one and aligning them with the transfer roller;
a second automatic alignment unit that lifts the metal plate that has passed through the tunnel type heat treatment furnace and moves it to the press unit to align the press unit at a set position; and
A third automatic alignment unit for lifting the pipe clamp molded from the press unit and aligning it vertically to the alignment pallet,
The second automatic alignment unit includes a pair of moving members disposed at regular intervals on both sides of the rear transfer roller located at the rear of the tunnel type heat treatment furnace and linearly moved from the rear transfer roller to the press unit;
an operating arm installed on the moving member to lift the metal plate from the rear conveying roller and for placing the metal plate on the press unit when the moving member is moved to the press unit;
a hydraulic cylinder mounted on the moving member to rotate the operating arm; and
A pipe clamp automatic hot forming apparatus including a driving unit for linearly moving the moving member. According to claim 1,
The conveying roller is located in front of the tunnel type heat treatment furnace and includes a front conveying roller on which a metal plate is placed, a heat treatment conveying roller located inside the tunnel type heat treatment furnace, and a rear side through which the heat treatment completed metal plate is discharged from the tunnel type heat treatment furnace. Containing a conveying roller,
The front conveying roller, the heat treatment conveying roller and the rear conveying roller are arranged in a line, and the press unit is a pipe clamp automatic hot forming apparatus arranged in a line behind the rear conveying roller. According to claim 1,
The first automatic alignment unit includes: a first articulated robot for moving the metal plate stacked on the tray with a transfer roller;
A pipe clamp automatic hot forming apparatus including an electromagnet holder mounted on the first articulated robot to lift the metal plates stacked on the tray one by one using magnetic force and release the magnetic force when seated on the transfer roller. 4. The method of claim 3,
The electromagnet holder includes a bracket fixed to the first articulated robot;
a connection plate bolted to the lower surface of the bracket;
an electromagnet member fixed to both sides of the connecting plate and in contact with the metal plate to generate a magnetic force; and
A pipe clamp automatic hot forming apparatus including a damping unit mounted in the center of the connection plate to generate a signal to apply power when the electromagnet member comes into contact with the metal plate, and to provide a cushioning action when the metal plate comes into contact with the electromagnet member. delete According to claim 1,
The operation arm includes a hinge portion rotatably mounted on a side surface of the movable member, a support arm portion extending to one side of the hinge portion and on which a metal plate is placed, and a support arm portion extending from the hinge portion to the other side and is constant with the support arm portion. A pipe clamp automatic hot forming apparatus comprising: a connection arm formed by being bent at an angle and rotatably connected to the operating rod of the hydraulic cylinder; . According to claim 1,
The third automatic alignment unit is a second articulated robot that moves the pipe clamp molded in the press unit to the alignment pallet, and is mounted on the second articulated robot to fix the pipe clamp and the pipe clamp is vertically erected on the alignment pallet. and a holding unit that releases the fixation when aligned in a state,
The holding unit includes a fixing bracket fixed to the second articulated robot, and a pair of fixing devices respectively mounted on both sides of the fixing bracket to be fixed to both edges of the curved portion of the pipe clamp. . 8. The method of claim 7,
The fixing device includes a mounting panel mounted on a fixing bracket;
a hydraulic cylinder fixed to the rear surface of the mounting panel and having an operating rod drawn out toward the front of the mounting panel;
a connecting rod fixed to the front of the mounting panel and formed in the form of a bar having a predetermined length;
a support rod mounted on the end of the connecting rod and supported on the lower surface of the pipe clamp;
a cylindrical member fixed to the connecting rod and formed in a cylindrical shape into which the operating rod of the hydraulic cylinder is linearly inserted;
a moving rod inserted into the cylindrical member so as to be movable in a straight line, connected to an operation rod, drawn out to the front of the cylindrical member and supported on the upper surface of the pipe clamp; and
A pipe clamp automatic hot forming apparatus comprising a separation prevention plate mounted at a right angle to the end of the support rod to support the side of the pipe clamp to prevent the pipe clamp from being separated. 9. The method of claim 8,
A conical inclined hole portion is formed in the separation preventing plate, and a conical portion inserted into the inclined hole portion is formed at the end of the moving rod. molding device.

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