JP2928110B2 - Automatic pipe end tape winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic pipe end tape winding device for steel pipes which are conveyed with their ends continuously abutted, particularly on a conveyance line where the outer diameter of a steel pipe changes greatly from 20 mm to 700 mm. A tape used to prevent the coating material or chemical liquid from flowing into the butted part of the steel pipe when masking the outer surface of the steel pipe, such as coating a resin or applying a chemical solution, or to mask threads or welded parts. The present invention relates to a device for automatically winding.

[0002]

2. Description of the Related Art It is thought that current technology is capable of partially changing the discharge amount when performing surface treatment such as coating of a resin or the like or application of a chemical solution on the outer periphery of a steel pipe being conveyed with its ends continuously abutted. However, in the actual operation, the line speed, the discharge amount, and the like are not partially changed from the viewpoint of productivity at present. Therefore, conventionally,
When coating the surface of the steel pipe with resin or other chemicals or applying a chemical solution, the coating material or chemical liquid is prevented from flowing inside from the butted part of the steel pipe, and the threads or pipe ends to be welded are used for masking purposes. It is common practice to wind the tape by a tape winding device or manually at both ends of the steel pipe separately outside the line, or to wind the tape manually by reducing the line speed. Met. In addition, manual tape winding work in the line,
Work while moving at the same speed as the transfer speed of the steel pipe,
The same worker cannot work for a long time, especially when the outside diameter of the steel pipe is large, the coordination work of two people is necessary due to the workability, so much time and labor is required, work efficiency is poor,
In addition to the high processing cost, there is a problem that the operation involves danger.

[0003] In order to solve the above problems, various pipe end tape winding devices have been proposed. For example, an air box that is switched to intake or exhaust by an electromagnetic valve and that sucks or blows off the adhesive tape peeled and supplied to a predetermined length by the adhesive tape supply mechanism, and a forward or backward by the electromagnetic valve behind the air box. And a machine box having a pressure roller for rolling and pressing the adhesive tape sprayed on the steel pipe is disposed relative to each other at a required interval in a longitudinal direction of the steel pipe transporting section. Is located in the air box portion and the pressure roller portion, a taping device provided with a control means for switching the air box to the exhaust state and the pressure roller to the forward position (Japanese Patent Publication No. 54-41125), A tape reel around which a masking tape used to form a painted portion is wound, and a back reel for sucking and feeding the masking tape. A cylinder roll provided on a movable support, a two-layer bracket comprising a tape roll and a cutter roll for attaching the masking tape to the pipe surface, and a cutter for cutting the tape after the attachment is completed, via a cylinder mechanism and a slide mechanism. A fixed support base is disposed movably up and down so as to face each other, and the movable support is supported by a slide mechanism and a cylinder mechanism so as to be movable up and down and horizontally. The attached roll is
A tape masking device (JP-A-58-61396), which is connected to each other by a link and can be pressed against the pipe surface by a cylinder attached to the end of the bracket, and runs the steel pipe whose ends are joined in an axial direction while rotating. A moving base that is capable of traveling in the same direction as the steel pipe in the same direction and is capable of moving forward and backward with respect to the steel pipe in the vicinity of the transfer line, and a pipe end detecting unit that detects the butted end of the steel pipe and travels the movable base. Provided, a tape feeding section for feeding a plurality of adhesive tapes attached to the base to the moving base, a cutter for cutting the fed adhesive tape to a predetermined length, and a steel pipe for receiving and feeding the fed adhesive tape. There has been proposed an apparatus (Japanese Utility Model Publication No. 59-35352) in which a pair of sticking means are provided which are pressed against the outer peripheral surface of the end portion and separately attached.

[0004]

In the taping device disclosed in Japanese Patent Publication No. 54-41125, the adhesive tape is sprayed every half circumference by air pressure and rolled and pressed by a pressing roller. It cannot follow the fluctuation of the steel pipe or taping width. In addition, the tape masking device disclosed in Japanese Patent Application Laid-Open No. 58-61396 performs masking on both ends individually, so that it is difficult to wind a tape on a conveyor that is continuously conveyed. Further, the apparatus disclosed in Japanese Utility Model Publication No. 59-35352 is intended for a steel pipe rotating type continuous line, and two pieces of tape are individually wound around the pipe end in order to avoid a rotation difference at a pipe end abutting portion. This means that the tube end butt is not completely sealed. Further, there is no disclosure about replenishing a tape from the next tape reel when the remaining amount of tape on the tape reel is small, and replacement of the tape reel requires manpower.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to automatically perform taping of an end portion of a steel pipe with an adhesive tape, thereby improving work efficiency and saving labor. It is to provide an end taping device.

[0006]

Means for Solving the Problems The present inventors have intensively studied and studied to achieve the above object. As a result, the pipe end seam is detected at a predetermined position on the steel pipe conveying conveyor, the timing at which the pipe end seam enters the tape winding device and the timing corresponding to the steel pipe conveying speed are controlled, and the traveling bogie is started to start the pipe end. While turning the tape from any position in the section, the winding width adjustment trolley of the traveling trolley is advanced and retracted so that the required masking width is obtained, and the tip of the next tape to be applied is held at the application position while cutting to the required tape length. After completion of winding the cutting tape tail end, the running carriage, the winding width adjusting carriage and the tape turning section are returned to the origin, and the operation of waiting for the next pipe end seam detection signal is automatically repeated, and the automatic operation of the tape reel is performed. The inventors of the present invention have found out that masking with an adhesive tape at the end of a steel pipe can be automatically performed by alternately replenishing the tape, and have reached the present invention.

That is, the present invention relates to a traveling cart which can travel in the same direction at the same speed as a steel pipe and can reciprocate to an origin position in parallel with a transport line for traveling in the axial direction of a steel pipe whose ends are joined, A winding width adjustment carriage that is reciprocally movable in the same direction as the steel pipe on the same axis as the traveling carriage, a lifting frame that sets a tape winding unit on the winding width adjustment carriage at a position corresponding to the outer diameter of the steel pipe, A rotating frame for rotating the tape winding unit concentrically with the steel pipe on the side of the lifting frame, and a tape supply device mounted on the rotor frame on the side of the rotating frame
A tape winding unit including a cutting device having a tape adhesive cutting device, a tape feeding device, and a tape length detecting mechanism, and a tape attaching device ; a steel tube support roll connected to the traveling vehicle to travel and support a steel tube; Tape cutting adhesive of tape winding unit on rotor frame
Drive the step, cutting device and tape attaching device respectively.
Air pressure is applied to each reciprocating drive mechanism that moves
And a rotary seal unit for sending a vacuum pressure to the roll of the tape attaching device, a seam detector for detecting a steel pipe butting portion, and running control of the traveling carriage and the winding width adjusting carriage in response to a seam detection signal from the detector. At the same time, the rotating frame, the tape supply device, the tape bonding and cutting means and the tape reeling
An automatic tube end tape winding device, comprising: a feeding device; a cutting device; and a tape winding control unit for controlling a tape attaching device .

[0008]

An automatic tube end tape winding device according to the present invention comprises: a traveling carriage which is capable of traveling in the same direction at the same speed as a steel pipe and is capable of reciprocating to an origin position, and having the same direction as the steel pipe coaxially with the axis of the traveling carriage. A winding width adjusting cart that is reciprocally movable, an elevating frame for setting the tape winding unit on the winding width adjusting cart at a position corresponding to the outer diameter of the steel pipe, and rotating the tape winding unit concentrically with the steel pipe on the side surface of the elevating frame. A rotating frame, a tape supply device attached to a rotor frame on the side of the rotating frame, and a tape
Toka cutting device and a tape joining apparatus having flop cutting adhesive means and the tape feeding device and the tape length detection mechanism
A tape winding unit , a steel pipe supporting roll connected to the traveling carriage and running to support the steel pipe, a tape cutting and bonding means of the tape winding unit on the rotor frame, and
Air pressure is applied to each reciprocating drive mechanism that drives the cutting device and the tape attaching device, respectively.
A rotary seal unit that sends vacuum pressure to a roll of a sticking device, a seam detector that detects a steel pipe butt portion, and running control of the traveling vehicle and the winding width adjusting vehicle in response to a seam detection signal from the detector. Together with a rotating frame, a tape supply device and a tape cutting and bonding means, and a cutting device
And it made from the tape winding control section for controlling the tape joining apparatus, the traveling vehicle in response to the steel pipe butt portion detection signal by the tape winding control unit, causes automatic travel the winding width adjustment carriage, the rotating frame, the tape feeder And tape cutting
By automatically controlling the bonding means, the cutting device, and the tape attaching device, the tape can be wound with a predetermined width around the end of the conveyed steel pipe.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the automatic tube end tape winding device of the present invention will be described below with reference to FIGS. 1 is an overall side view of the automatic tube end tape winding device of the present invention, FIG. 2 is a plan view of the automatic tube end tape winding device with the tape winding unit omitted, FIG. tape of partially sectional view of a rotor frame mounting section, FIG. 5 is the invention
Overall front view of the flop winding unit, FIG. 6 is a control system diagram of the automatic pipe end tape winding apparatus of the present invention, automatic tube 7 controls flow of the automatic pipe end tape winding apparatus of the present invention, FIG 8 is likewise present invention Fig. 9 shows a new tape prepared for installation, Fig. 9 (a) is a perspective view of a tape with a double-sided adhesive tape attached to the beginning of the tape, and (b) is an adhesive tape at the beginning of the tape. FIG. 10 is a perspective view of the tape temporarily folded back, and FIG. 10 is an overall front view showing a tape cutting preparation position.
Is an overall front view showing the tape connecting position of the automatic tape connecting device, FIG. 12 shows a steel pipe butt portion, (a) FIG. 12 is a cross-sectional view when connected with one connecting jig, (b) FIG. It is sectional drawing at the time of connecting with two connection jigs.

In FIGS. 1 to 12, reference numerals 1 and 2 denote conveyor rolls for transporting steel pipes 3, as shown in FIG. Are conveyed by conveyor rolls 1 and 2. Reference numeral 5 denotes a portal-type joint detection frame that stands upright so as to straddle the steel pipe 3 in the vicinity of the conveyor roll 1. The handle 6 is moved up and down via a screw jack by operating the handle 6, and the two rolls 7 contact the steel pipe 3. Is provided with a seam detector 8 composed of an eddy current sensor, a photoelectric sensor, and the like. Reference numeral 9 denotes a portal-type speed detection frame that stands upright so as to straddle the steel pipe 3 in the vicinity of the conveyor roll 2. The steel pipe transport provided with a touch roll that moves up and down via a screw jack by operating the handle 10 and contacts the steel pipe 3. A speed detector 11 is provided. Reference numerals 12 and 13 denote rails of a linear guide, and a roll frame 16 of a steel pipe support roll 15 is fixed to a plurality of bearings 14 attached to the rail 12. Also, on the speed detection frame 9 side of the rail 13,
A roll frame 19 of a steel pipe support roll 18 is fixed to a plurality of bearings 17 attached to the rail 13. The roll frame 19 is fixed to a nut 21 that moves along a screw shaft 20 of a ball screw. When the shaft 22 is rotated by a servomotor 24 via a timing belt 23, the screw shaft 20 is Rotating and steel pipe 3 with roll frame 16
Is configured to reciprocate in the transport direction.

Reference numeral 26 denotes a traveling carriage for reciprocating the tape winding device in the direction in which the steel pipe 3 is conveyed.
The timing belt 30 is fixed to a plurality of bearings 27 attached to the shaft 27, is connected to a nut 29 that moves along a screw shaft 28 of a ball screw, and rotates the shaft 22 with a servo motor 24 via a timing belt 23. The screw shaft 28 rotates through the shaft, and reciprocates in the transport direction of the steel pipe 3 along the rail 13 of the linear guide. Reference numeral 31 denotes a winding width adjustment truck fixed on a plurality of bearings 32 attached to the rail 13, and is connected to a nut 34 which moves along a screw shaft 33 of a ball screw installed on a traveling truck 26, and a timing belt
If the screw shaft 33 is rotated by the servo motor 36 via 35,
When the tape is wound back and forth along the linear guide rail 13 in the transport direction of the steel pipe 3 in synchronization with the transport speed of the steel pipe 3, the spiral of the tape width or more is performed. The overlap width of the tape spiral winding can be adjusted by the used tape width, the tape turning speed, and the feed speed of the winding width adjusting cart 31.

Reference numeral 37 denotes a gate-shaped stand frame that stands upright on the winding width adjusting cart 31 so as to straddle the steel pipe 3, 38 denotes a fixed roll provided on the stand frame 37 and contacts the lower end of the steel pipe 3, 39.
Is also raised and lowered by the operation of a handle 40 provided on the stand frame 37, and is a lifting roll that contacts the upper end of the steel pipe 3, 4
Reference numeral 1 denotes an elevating frame having a support cylinder 42 on a side surface provided on a stand frame 37, which is elevated by a driving device 43 via a screw jack 44, and is set at a position corresponding to the outer diameter of the steel pipe 3, and Fixed to frame 37. 45 is a bearing 46 on the support cylinder 42 on the side of the lifting frame 41
By setting the lifting frame 41 at a position corresponding to the outer diameter of the steel pipe 3 and fixing the lifting frame 41 with a rotating frame rotatably supported through the center, the center of the supporting cylinder 42 and the rotating frame 45 having a hollow structure are formed at the center. Coincides with the center of the steel pipe 3. At one end of the rotary frame 45, a tape winding unit 47 of a tape bonding device, a steel pipe supporting roll unit 48, a rotor frame 49 that supports a compressed air accumulator and a tape supply unit (not shown) on the side surface are detachably provided. It is configured to replace the rotor frame 49 corresponding to the outer diameter of 3. In addition, a gear 50 is provided on an end peripheral surface of the rotating frame 45, and meshes with a gear 54 that meshes with a gear 53 that is rotated via a timing belt 52 by a servo motor 51 provided on the winding width adjustment cart 31. By driving the servo motor 51,
The rotating frame 45 is configured to rotate counterclockwise when viewed from the exit side of the steel pipe 3. Reference numerals 55 and 56 denote rotary joint structures for air and vacuum piping provided between the rotary frame 45 and the support cylinder 42, and 57 denotes a slip ring for power supply and electric signal supply similarly provided on the outer periphery of the rotary frame 45.

The tape winding unit 47 is provided with a tape bonding device and a tape automatic connection device. The set position of the tape winding unit 47 can be freely set with a pin and a bolt on the plane portion of the rotor frame 49, and the tape reel 58
The supplied single-sided adhesive tape (hereinafter referred to as tape) 59 is attached to the outer surface of the steel pipe 3, and the tape is supplied, the tape length is measured,
It is configured to cut the tape and change the connection of the supply tape reel 58. The tape bonding apparatus includes a tape feeding device, a cutting device, and a tape attaching device.

The tape feeding device feeds a tape 59 supplied from a tape reel 58 of the automatic tape connecting device.
Consists of two feed rolls 60 and 61, feed roll 6
0 and 61 are rotated by the engagement of the gears. Tape 59
The feed roll 61 which is in contact with the adhesive surface is made of an elastic coated roll having releasability or a grooved roll having a reduced area in contact with the adhesive surface of the tape 59. The feed roll 60 in contact with the non-adhesive side has a tension adjusting mechanism for the tape 59 and a brake mechanism for holding the tape when cutting the tape.

The cutting device is a tape that has been fed out.
It consists of a knife roll 64 with a guide ring 63 equipped with a knife 62 that cuts and supplies 59 to a predetermined length, and an anvil roll 65 with a vacuum.The knife roll 64 with a guide ring 63 and the anvil roll 65 are surely engaged by gear engagement. Perform cutting of the tape 59. The knife roll 64 with the guide ring 63 to which the knife 62 is attached has an operating mechanism 66 for adjusting the access of the knife 62, and the knife 62 is provided at both ends.
This is a roll provided with a guide ring 63 for protecting the. The anvil roll 65 is a roll having both a function as a receiving blade of the knife 62 and a function as a receiver of the guide ring 63, and is a vacuum roll having a tape holding function when the tape 59 is cut. The cutting device is
Knife roll 64 with guide ring 63 with knife 62 attached
In order to allow the tape 59 of a predetermined thickness to pass between the anvil roll 65 and the anvil roll 65, the operating device 66 separates the roll to provide a gap larger than the tape thickness, and presses the knife 62 during tape cutting. And a tape length detector 67 for detecting the length of the passing tape from the number of rotations of the knife roll 64. By changing the shape of the knife 62 or the anvil roll 65, the tape 59 can be cut off or perforated.

The tape sticking device comprises a press roll 68 with a vacuum hole having a pressure mechanism, a tape guide 69 and a brush 70 for pressing the rear end of the tape on the cut steel pipe 3 against the steel pipe 3. Paste the tape. The press roll 68 with a vacuum hole having the pressurizing mechanism has a structure in which holes are formed at regular intervals on the roll surface and has a vacuum zone in which vacuum pressure is transmitted only to a certain area surface, and is separated from the runout of the steel pipe 3 by a runout or more. It has a pressurizing mechanism 71 such as an air cylinder that can be arranged at a position and can follow the runout, holds the leading end of the tape 59 in the vacuum zone, and presses the press roll 68 against the outer surface of the steel pipe 3 by the pressurizing mechanism 71. The tape tip is pressed against the outer surface of the steel pipe 3 and affixed.
Is rotated by friction with the outer surface of the steel pipe 3, and a predetermined tension is applied to the tape 59 by the feed roller 60 and the anvil roll 65 via the timing pulley and the timing belt 72 with the rotational force of the press roll 68 as a driving force. The tape 59 is rotated so as to be applied, and the tape 59 is supplied to the steel pipe 3 and attached. Further, when the press roll 68 is operated by the pressing mechanism 71 from a standby position separated by a predetermined distance from the steel pipe 3 to a taping position,
A one-way clutch (not shown) incorporated in the press roll holding section is operated, and the tape start end is extended to the sticking position. The tape guide 69 is attached to the holding portion of the press roll 68 and is disposed on the adhesive surface side of the tape 59, and is a non-adhesive roll that assists the suction force for holding the tape.
73 and a thin bar 74 for suppressing curling of the tape 59.

The steel pipe supporting roll unit 48 includes a reciprocating mechanism.
75, steel pipe support roll 76, reciprocating part 77 and reciprocating mechanism 75
And a frame 78 for supporting the rotor frame.
The setting position can be freely set on the side surface of the 49 by a pin and a bolt, and is located at a position facing the tape winding unit 47 to prevent the small diameter steel pipe or the like from bending due to the pressing force of the press roll 68. The steel pipe support roll 76 has two pairs, one for large diameter steel pipes and the other for small diameter steel pipes.
Can be adjusted in three stages according to the outer diameter of the steel pipe 3, and the reciprocating mechanism 75 allows the steel pipe support roll 76 to contact or not contact the steel pipe 3. Press roll for attaching tape to tape winding unit 47
Pressing the tip of the tape 59 against the steel pipe 3 with 68, and simultaneously driving the servo motor 51 to rotate the rotor frame 49 along the outer circumference of the steel pipe 3 while supporting the steel pipe 3 from the opposite direction with the steel pipe support roll 76, The tape 59 is configured to be wound around the outer periphery of 3.

The automatic tape connecting device includes a rotatable turret frame 81 in which support shafts 79 of two or more tape reels 58 are arranged symmetrically with respect to a rotation shaft 80, and a reciprocating motion (not shown) on the support shaft 79 of the tape reels 58. A tape supply device provided with a brake mechanism by a moving mechanism, a support arm 84 of a tape connection roll 83 and a support arm 86 of a tape cutter 85 arranged on the same fulcrum shaft 82, and a fulcrum shaft 82 of the support arm 84 and the support arm 86.
And a two-stage reciprocating drive mechanism 87 for turning around.

When the tape 59 of the tape reel 58 being fed is reduced and reaches the set value, the automatic tape connecting device operates the first stage of the two-stage reciprocating drive mechanism 87 as shown in FIG. The support arm 84 of the connection roll 83 and the support arm 86 of the tape cutter 85 are turned to stand by at the preparation position, and then the two-stage reciprocating drive mechanism 87
The step is actuated to further rotate, and as shown in FIG. 11, the tape connecting roll 83 contacts the leading end of the tape 59 of the supply tape reel 58 via the tape 59 that has been fed out, and the torsion coil spring (not shown) Tape connection roll by spring force
83 is the pressed state and the tape that has been fed out
59 is adhered to the leading end of the tape 59 of the supply tape reel 58, pulled out at the same time and connected to a fixed length, and is extended just before the support arm 86 of the tape cutter 85 reaches the second stroke limit of the two-stage reciprocating drive mechanism 87. The blade of the tape cutter 85 is configured to contact and cut the tape 59 that has been cut.

Reference numeral 88 denotes a support roll cart for the steel pipe 3 connected to the winding width adjusting cart 31 by a shaft 89,
It is fixed to a plurality of bearings 90 attached to 3, and reciprocates along the rail 13 together with the winding width adjustment cart 31. Reference numeral 91 denotes a portal-type stand frame that stands on the supporting roll cart 88 so as to straddle the steel pipe 3, and 92 denotes a steel pipe provided on the stand frame 91.
3 is a fixed roll that contacts the lower end of the pipe 3. 93 is a lifting roll that also moves up and down by operating a handle 94 provided on the stand frame 91, and that contacts the upper end of the steel pipe 3.
It is configured to be supported by 92 and a lifting roller 93.

Reference numeral 95 denotes a tape winding control unit which receives a seam detection signal of the steel pipe 3 from the seam detector 8, a conveyance speed detection signal of the steel pipe 3 from the steel pipe conveyance speed detector 11, and a tape length detector 67.
A tape length detection signal of the tape 59 fed from the tape reel 58 is input. In addition, initial conditions such as the tape width, the tape winding width, the number of rotations of the rotor frame 49, the number of rotations of the fixed position winding, and the feeding speed of the winding width adjusting cart 31 are input and set from the console 96 to the tape winding control unit 95. It is configured as follows.
When the seam detection signal of the steel pipe 3 and the conveyance speed detection signal are input, the tape winding control unit 95 calculates whether or not the seam of the steel pipe 3 has passed the set position, and when the seam of the steel pipe 3 has passed the set position. Command the traveling trolley operating unit 97 to accelerate the traveling trolley, and drive the servo motor 24 to rotate the screw shaft 28 via the timing belt 30 so that the speed of the traveling trolley 26 is synchronized with the transport speed of the steel pipe 3. Then, the screw shaft 20 is rotated via the timing belt 25, and the roll frames 16, 19 are caused to travel in the transport direction of the steel pipe 3 at half the speed of the traveling carriage 26. As a result, the steel pipe supporting roll 15 on the roll frame 16 is placed between the conveyor roll 1 and the fixed roll 38 so that the steel pipe 3
I support.

The tape winding control unit 95 is configured so that the traveling carriage 26
When synchronized with the transport speed of the steel pipe 3, the transport speed detection signal and the tape length detection signal of the steel pipe 3 and the input tape width, the tape winding width, the rotation speed of the rotor frame 49, the fixed-position winding rotation speed, the winding width adjusting cart 31 Based on the feed speed and the like, a tape sticking command is output to the tape sticking operation unit 98, and the pressing mechanism 71
The press roll 68 holding the leading end of the tape 59 in the vacuum zone is pressed against the outer surface of the steel pipe 3 and the reciprocating mechanism 7
By operating 5, the steel pipe supporting roll 76 is raised from the opposite direction to support the steel pipe 3, and the tip of the tape 59 is attached to the outer surface of the steel pipe 3. At the same time, the tape winding control unit 95 outputs a turn command of the rotor frame 49 to the turning frame operation unit 99 and outputs a start of feeding to the winding width adjustment bogie operation unit 100, and drives the servo motor 51 to drive the outer periphery of the steel pipe 3. The rotor frame 49 is rotated along the section, and the rotational force of the press roll 68 is driven by friction driving of the steel pipe 3 and the press roll 68, and the feed rolls 60, 61, and the knife are driven through a timing pulley, a timing belt 72, a gear, and the like. The roll 64 and the anvil roll 65 are rotated while applying a predetermined tension to the tape 59, the tape 59 is paid out from the tape reel 58, and the tape 59 is wound around the outer circumference of the steel pipe 3, and the servo motor 36 is driven to drive the timing belt 35. , The screw shaft 33 is rotated, and the winding width adjusting cart 31 is caused to travel at the set feed speed. Further, the tape winding control unit 95 operates the pressing mechanism 71 to
68 is disengaged from the steel pipe 3 and retracted to a predetermined position. Steel pipe 3
The friction drive of the press roll 68 stops, but the rotation of the rotor frame 49 causes the tape 59 to be fed, so that the press roll 68, the feed rolls 60 and 61, the knife roll 64, and the anvil roll 65 are rotating.

The tape winding control unit 95 includes a tape length detector 67
Calculates the feeding tape length from the tape length signal output from, and when the feeding tape length reaches a predetermined length,
A tape cutting command is output to the tape connection operation unit 101, and the operating device 66 is operated to cause the knife roll 64 of the cutting device to come into contact with the anvil roll 65 to cut or cut the tape 59, and the start of the tape 59 is pressed. Roll 68
Feed roll 6 when the steel pipe 3
When the brake is applied to 0 and 61 and the supply of the tape 59 is stopped, the rotation of the rotor frame 49 cuts the tape 59 at the perforation cut portion. At that time, the press roll 68 stands by at a predetermined position away from the steel pipe 3 by a predetermined distance, and the tape 5
9 The beginning is held in the vacuum zone. The rear end of the tape 59 on the steel pipe 3 is pressed against the steel pipe 3 by the brush 70.

When the tape 59 is cut, the tape winding control unit 95 outputs a traveling vehicle deceleration stop to the traveling vehicle operation unit 97,
After stopping the servo motor 24, the winding width adjustment truck operation unit 10
A home position return command is output to 0, and the servo motor 36 is rotated in the reverse direction to return the winding width adjusting cart 31 to the home position. Further, the tape winding control unit 95 outputs a traveling vehicle acceleration / retreat command to the traveling vehicle operation unit 97, rotates the servo motor 24 in the reverse direction to accelerate / retreat the traveling vehicle 26, and stops the traveling vehicle 26 at the retracted position. At the same time, the servo motor 51 is controlled by instructing the turning frame operation unit 99 to stop the rotor frame 49 at the origin position. At this time, due to the reverse rotation of the servo motor 24, the screw shaft 20 also rotates reversely via the timing belt 25,
The roll frames 16, 19 also return to the origin positions. When the traveling vehicle 26 stops at the retreat fixed position, the tape winding control unit 95 replenishes air pressure, completes one cycle of tape winding, and waits until the next seam detection signal is input.

The tape winding control unit 95 includes a tape length detector 67
Calculates the total of the tape length signal output from the
When the number of tapes 59 on the tape reel 58 that has been fed out while attaching 59 decreases, and the connection preparation set value is reached, a tape connection preparation command is output to the tape attachment operation unit 98, and the two-stage reciprocating drive mechanism 87 Activate the step and connect tape 83
The support arm 84 of the tape cutter 85 and the support arm 86 of the tape cutter 85 are turned to stand by at the preparation position, and when the tape feeding length reaches the connection set value, a tape connection command is output and
Activate the second stage of the stage reciprocating drive mechanism 87 to turn further,
The tape connecting roll 83 comes into contact with the leading end of the tape 59 of the supply tape reel 58 via the fed tape 59, and the tape connecting roll 83 is kept pressed by the spring force of a not-shown torsion coil spring and is fed out. The tape 59 is adhered to the tip of the tape 59 of the supply tape reel 58, pulled out at the same time and connected to a fixed length, and the support arm 86 of the tape cutter 85 reaches the second stroke limit of the two-stage reciprocating drive mechanism 87 When the blade of the tape cutter 85 is cut into contact with the tape 59 that has been fed immediately before and the connection of the tape 59 is completed, the two-stage reciprocating drive mechanism 87 is configured to retreat and return to the home position. Thereafter, the worker removes the used tape reel 58 from the support shaft 79 of the turret frame 81, rotates the turret frame 81 counterclockwise around the rotation shaft 80, and moves the new tape reel 58 to the tape 59 until just before. The tape reel 58 is moved to the position of the tape reel 58 that has been extended, fixed with a positioning pin, and a new tape reel 58 is set on the support shaft 79 from which the tape reel 58 has been removed.

With the above configuration, when the outer diameter of the conveyed steel pipe 3 is changed, the conveyed steel pipe 3
Is transported in a certain lot for each constant outer diameter, so the handle 6 is operated in accordance with the outer diameter of the steel pipe 3, and the two rolls 7, 7 are set to a position where they come into contact with the steel pipe 3 via a screw jack. . Further, by operating the handle 10, the touch roll of the steel pipe transfer speed detector 11 is set to a position where the touch roll comes into contact with the steel pipe 3 via the screw jack. Further, by operating the handle 40, the elevating roll 39 is moved up and down via the screw jack, and is set to a position where it comes into contact with the steel pipe 3. Furthermore, by operating the handle 94, the elevating roll 93 is moved up and down via the screw jack, and is set to a position where it comes into contact with the steel pipe 3. Next, drive the driving device 43 to drive the screw jack.
The lifting frame 41 is raised and lowered via 44, and the lifting frame 41
Is set and fixed so that the center of is located at the center of the steel pipe 3. As a result, the center of the support cylinder 42 and the center of the rotor frame 49 having the hollow structure coincide with the center of the steel pipe 3.

Further, there are two types of rotor frames 49, one for a small diameter and the other for a large diameter. The rotor frame 49 is replaced if necessary according to the outer diameter of the steel pipe 3 to be conveyed. Then, the tape winding unit 47 is fixed to the rotor frame 49 with a pin and a bolt at a position corresponding to the outer diameter of the steel pipe 3, and the steel pipe supporting roll unit is fixed.
If necessary, replace the 48 steel pipe supporting rolls 76 with the outer diameter of the steel pipe 3 for a large diameter steel pipe or a small diameter steel pipe, and adjust the roll interval of the steel pipe supporting rolls 76 according to the outer diameter of the steel pipe 3. After that, the steel pipe supporting roll unit 48 is fixed at a position corresponding to the outer diameter of the steel pipe 3 with a pin and a bolt, and the manual adjustment is completed. Further, initial conditions such as the tape width, the tape winding width, the number of rotations of the rotor frame 49, the number of rotations of the fixed position winding, and the feeding speed of the winding width adjusting carriage 31 are input and set to the tape winding control unit 95 from the console 96, and the automatic tape The operation preparation of the winding device ends.

When the above manual adjustment is completed, the ends of the steel pipes 3 are joined by connecting jigs 4 from a steel pipe entry side skit (not shown) via a connecting jig 4 and are continuously conveyed by a conveyor roll. When the pipe end butting portion of the steel pipe 3 reaches the seam detector 8, a seam detection signal of the steel pipe 3 is input from the seam detector 8 to the tape winding control unit 95. The tape winding control unit 95
7, As shown in FIG. 8, when the seam detection signal of the steel pipe 3 and the conveyance speed detection signal are input, it is calculated whether or not the seam of the steel pipe 3 has passed the set position. Instruct the traveling bogie operation unit 97 to accelerate traveling forward of the traveling bogie,
The servo motor 24 is driven to rotate the screw shaft 28 via the timing belt 30 to synchronize the speed of the traveling carriage 26 with the conveyance speed of the steel pipe 3, and the screw shaft 20 is rotated via the timing belt 25 to Trucks traveling on frames 16 and 19
The steel pipe 3 is caused to travel in the conveying direction at a speed of 1/2 of 26. Thus, the steel pipe support roll 15 on the roll frame 16 supports the steel pipe 3 at an intermediate position between the conveyor roll 1 and the fixed roll 38.

The tape winding control unit 95 is configured so that the traveling carriage 26
When synchronized with the transport speed of the steel pipe 3, the transport speed detection signal and the tape length detection signal of the steel pipe 3 and the input tape width, the tape winding width, the rotation speed of the rotor frame 49, the fixed-position winding rotation speed, the winding width adjusting cart 31 Based on the feed speed and the like, a tape sticking command is output to the tape sticking operation unit 98, and the pressing mechanism 71
The press roll 68 holding the leading end of the tape 59 in the vacuum zone is pressed against the outer surface of the steel pipe 3 and the reciprocating mechanism 7
By operating 5, the steel pipe supporting roll 76 is raised from the opposite direction to support the steel pipe 3, and the tip of the tape 59 is attached to the outer surface of the steel pipe 3. At the same time, the tape winding control unit 95 outputs a turn command of the rotor frame 49 to the turning frame operation unit 99 and outputs a start of feeding to the winding width adjustment bogie operation unit 100, and drives the servo motor 51 to drive the outer periphery of the steel pipe 3. The rotor frame 49 is rotated along the section, and the rotational force of the press roll 68 is driven by friction driving of the steel pipe 3 and the press roll 68, and the feed rolls 60, 61, and the knife are driven through a timing pulley, a timing belt 72, a gear, and the like. The roll 64 and the anvil roll 65 are rotated while applying a predetermined tension to the tape 59, the tape 59 is paid out from the tape reel 58, and the tape 59 is wound around the outer circumference of the steel pipe 3, and the servo motor 36 is driven to drive the timing belt 35. , The screw shaft 33 is rotated, and the winding width adjusting cart 31 is caused to travel at the set feed speed. Further, the tape winding control unit 95 operates the pressing mechanism 71 to
68 is disengaged from the steel pipe 3 and retracted to a predetermined position. Steel pipe 3
The friction drive of the press roll 68 stops, but the rotation of the rotor frame 49 causes the tape 59 to be fed, so that the press roll 68, the feed rolls 60 and 61, the knife roll 64, and the anvil roll 65 are rotating.

The tape winding controller 95 includes a tape length detector 67
Calculates the feeding tape length from the tape length signal output from, and when the feeding tape length reaches a predetermined length,
A tape cutting command is output to the tape attaching operation unit 98, and the knife roll 64 of the cutting device is in contact with the anvil roll 65 to cut or cut the tape 59 by operating the operating device 66, and the starting end of the tape 59 is pressed. Roll 68
Feed roll 6 when the steel pipe 3
When the brake is applied to 0 and 61 and the supply of the tape 59 is stopped, the rotation of the rotor frame 49 cuts the tape 59 at the perforation cut portion. At that time, the press roll 68 stands by at a predetermined position away from the steel pipe 3 by a predetermined distance, and the tape 5
9 The beginning is held in the vacuum zone. The rear end of the tape 59 on the steel pipe 3 is pressed against the steel pipe 3 by the brush 70.

When the tape 59 is cut, the tape winding control section 95 outputs a traveling vehicle deceleration stop to the traveling vehicle operation section 97,
After stopping the servo motor 24, the winding width adjustment truck operation unit 10
A home position return command is output to 0, and the servo motor 36 is rotated in the reverse direction to return the winding width adjusting cart 31 to the home position. Further, the tape winding control unit 95 outputs a traveling vehicle acceleration / retreat command to the traveling vehicle operation unit 97, rotates the servo motor 24 in the reverse direction to accelerate / retreat the traveling vehicle 26, and stops the traveling vehicle 26 at the retracted position. At the same time, the servo motor 51 is controlled by instructing the turning frame operation unit 99 to stop the rotor frame 49 at the origin position. At this time, due to the reverse rotation of the servo motor 24, the screw shaft 20 also rotates reversely via the timing belt 25,
The roll frames 16, 19 also return to the origin positions. When the traveling carriage 26 stops at the backward localization value, the tape winding controller 95 supplies air pressure, completes one cycle of tape winding, and waits until the next seam detection signal is input.

On the other hand, the tape winding controller 95 calculates the total of the tape length signals output from the tape length detector 67 during tape winding, and calculates the total number of the tape reels 58 that are being fed out while the tape 59 is being attached. When the number of tapes 59 decreases and reaches the connection preparation set value, a tape connection preparation command is output to the tape connection operation unit 101, and the first stage of the two-stage reciprocating drive mechanism 87 is operated to support the support arm 84 of the tape connection roll 83. And the support arm 86 of the tape cutter 85 is turned to stand by at the preparation position, and then, when the tape feeding length reaches the connection set value, a tape connection command is output to operate the second stage of the two-stage reciprocating drive mechanism 87. Then, the tape connection roll 83 comes into contact with the leading end of the tape 59 of the supply tape reel 58 via the tape 59 that has been fed, and the tape connection roll 83 is pressed by the spring force of a not-shown torsion coil spring. It is holding a tape 59 which is fed to adhere to the tape 59 tip of the supply tape reel 58, to connect the predetermined length is pulled out simultaneously, second supporting arms 86 of the tape cutter 85 bunk reciprocating drive mechanism 87
The blade of the tape cutter 85 contacts and cuts the tape 59 that has been fed just before reaching the step stroke limit.
Is completed, the two-stage reciprocating drive mechanism 87 retreats and returns to the localization value. Therefore, the replacement supply of the tape reel 58 is performed by replacing the tape reel 58 and the turret frame 81.
Will be rotated by 180 °, but the same work should be performed before the next connection change. The replacement and supply of the tape reel 58 can be automated by using a device such as a multi-joint free drive mechanism or a multi-axis orthogonal coordinate free drive mechanism.

[0033]

As described above, the tape bonding apparatus of the present invention can eliminate excessive tape winding and extremely reduce winding wrinkles, and can perform tape winding with stable quality. Further, the tape automatic connection device of the present invention can automatically change the connection to the tape on the supply-side tape reel during the tape winding operation without stopping the automatic operation. Further, the automatic pipe end tape winding device of the present invention can automatically carry out masking of the end of the steel pipe with the adhesive tape, thereby improving work efficiency and saving labor.

[Brief description of the drawings]

FIG. 1 is an overall side view of an automatic pipe end tape winding device according to the present invention.

FIG. 2 is a plan view of the automatic tube end tape winding device in which a tape winding unit is omitted.

FIG. 3 is an enlarged view taken in the direction of arrows AA in FIG. 1;

FIG. 4 is a partial cross-sectional view of a rotor frame mounting portion.

FIG. 5 is an overall front view of the tape bonding apparatus of the present invention.

FIG. 6 is a control system diagram of the automatic tube end tape winding device of the present invention.

FIG. 7 is a control flow chart of the automatic tube end tape winding device of the present invention.

FIG. 8 is a control flowchart of the automatic tube end tape winding device of the present invention.

FIG. 9 shows a new tape ready for installation;
(A) is a perspective view of a tape in which a double-sided adhesive tape is stuck to the beginning of the tape, and (b) is a perspective view of the tape in which the adhesive surface at the beginning of the tape is folded back and temporarily fixed.

FIG. 10 is an overall front view showing a tape cutting preparation position of the automatic tape connecting device.

FIG. 11 is an overall front view showing a tape connecting position of the automatic tape connecting device.

12A and 12B show a butt portion of a steel pipe, in which FIG. 12A is a cross-sectional view when connected by one connecting jig, and FIG.
It is sectional drawing at the time of connecting with two connection jigs.

[Explanation of symbols]

 1, 2 Conveyor roll 3 Steel pipe 4 Connection jig 5 Seam detection frame 6, 10, 40, 94 Handle 7 Roll 8 Seam detector 9 Speed detection frame 11 Steel pipe transfer speed detector 12, 13, Rail 14, 17, 27, 32 , 46, 90 Bearing 15, 18, 76 Steel pipe support roll 16, 19 Roll frame 20, 28, 33 Screw shaft 21, 29, 34 Nut 22 shaft 23, 25, 30, 35, 52 Timing belt 24, 36, 51 Servo Motor 26 Traveling trolley 31 Winding width adjusting trolley 37, 91 Stand frame 38, 92 Fixed roll 39, 93 Lifting roll 41 Lifting frame 42 Support tube 43 Drive 44 Screw jack 45 Rotating frame 47 Tape winding unit 48 Steel pipe support roll unit 49 Rotor Frame 50 Gear 5 3, 54 Gear 55, 56 Rotary joint structure 57 Slip ring 58 Tape reel 59 Tape 60, 61 Feed roll 62 Knife 63 Guide ring 64 Knife roll 65 Anvil roll 66 Operating mechanism 67 Tape length detector 68 Press roll 69 Tape guide Reference Signs List 70 brush 71 pressure mechanism 72 timing belt 73 non-adhesive roll 74 bar 75 reciprocating mechanism 77 reciprocating part 78 frame 79 support shaft 80 rotation shaft 81 turret frame 82 fulcrum shaft 83 tape connection roll 84, 86 support arm 85 tape cutter 87 Two-stage reciprocating drive mechanism 88 Support roll cart 89 Shaft 95 Tape winding control unit 96 Operator console 97 Traveling cart operation unit 98 Tape attaching operation unit 99 Rotating frame operation unit 100 Winding width adjustment cart operation 101 Tape Attach operation unit

──────────────────────────────────────────────────の Continued on front page (72) Inventor Koichi Okamoto 1850 Minato, Wakayama City, Wakayama Prefecture Sumitomo Metal Industries, Ltd. Inside the steelworks (72) Inventor Shinji Furukawa 1850 Minato, Wakayama-shi, Wakayama Sumitomo Metal Industries, Ltd. 5-33, Nakanishi-cho, Niihama-shi (72) Inventor Shigeki Manabe 271, Todamachi, Iyo-Mishima-shi, Ehime (56) References JP-A-58-61396 (JP, A) JP-A-6-211410 (JP, A) JP-B-54-41125 (JP, B2) JP-B-59-35352 (JP, Y1) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65H 35/07 B65H 81/00-81/08 B0 5D 7/14 B29C 63/06

Claims (1)

(57) [Claims] 1. A traveling vehicle that is capable of traveling in the same direction at the same speed as a steel tube and reciprocatingly movable to an origin position in parallel with a transport line for traveling in the axial direction of a steel tube whose ends are joined to each other. A winding width adjustment cart that is reciprocally movable in the same direction as the steel pipe on the same axis as the axis of the steel pipe; an elevating frame for setting the tape winding unit on the winding width adjustment cart at a position corresponding to the outer diameter of the steel pipe; A rotating frame for rotating the tape winding unit concentrically with the steel pipe, a tape supply device attached to the rotor frame on the side of the rotating frame, and a tape bonding cutter.
Tape consisting of a step, a tape feeding device, a cutting device having a tape length detecting mechanism, and a tape attaching device
A winding unit, a steel support roll for supporting the traveling carriage is connected with the traveling steel, Te on the rotor frame
Tape cutting and bonding means and cutting equipment
Air pressure is applied to each reciprocating drive mechanism that drives the setting device and the tape application device, respectively , and the cutting device and the tape application device.
A rotary seal unit that sends vacuum pressure to the rolls, a seam detector that detects a steel pipe butting portion, and a running control of the traveling carriage and the winding width adjusting carriage in accordance with a seam detection signal from the detector. Frame, tape feeder and
Adhesive cutting means, tape feeding device and cutting
An automatic tube end tape winding device comprising a device and a tape winding control unit for controlling a tape attaching device.