JPS5829524A - Continuously cleaning apparatus for pipes - Google Patents

Abstract

PURPOSE:To provide titled cleaning apparatus which displays a remarkable labor-saving effect in comparison with conventional batch type cleaning and drying apparatus, by arraying one by one preliminarily cleaned pipes and performing all of internal surface and external surface cleaning, hot-water cleaning, and internal surface drying successively during conveyance. CONSTITUTION:Pipes cleaned preliminarily in an acid washing tank, a water washing tank 1, etc., are sent, one by one, to an array table 20 and then sent to an endless conveyor belt. Then, cleaning nozzles of an internal surface cleaning device 30 are inserted into pipes being conveyed to the carry-out end of the endless conveyor belt to perform pressurized-water injection washing. Then, the pipes after the internal surface washing are sent to an annular external surface cleaning device 40 equipped with a spray opening surrounding the external circumference of each pipe to perform external surface cleaning, and the pipes are dipped, one by one, in the hot-water tank of a hot-water cleaning device 50. The pipes lifted out of the hot-water tank are sent to an internal surface drying device 60 while being clamped, one by one, during conveyance, and the compressed air is blown into the internal surface of each pipe to dry the internal surface. The said operations are performed successively through conveyors 2 and 3.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to refining equipment mainly for tandem cleaning of pipes such as steel pipes.

Pipes such as steel pipes are made by welding and then sintered and heated.
After going through the processes of , roughening, straightening, cutting, chamfering, pickling, water washing, pressure water jet cleaning, hot water washing, drying, flaw detection, and inspection, it is sold on the market.

Among these series of steps, the steps after the water washing step are not so-called tandem, which has been a bottleneck in terms of production efficiency. For example, pipes in a washing tank are tied to wires, hoisted up by a crane, arranged on a table manually, cleaned with pressure water, then transferred to a hot water washing tank, and then tied to wires using human power. The pipes were tied up and hoisted by a crane, and while suspended, air was sprayed into the pipes to dry them, and the pipes were then placed in the flaw detection and inspection process.

The main reason why complete batch production was required is that the pressure water jet cleaning process, which uses pressurized water to wash off scale built up on the armpits and insides, could not be carried out in tandem. The applicant succeeded in mechanizing this (patent application No. 54-4913)
No. 5), but the preceding process was discontinuous, and complete tandem production was not yet possible, resulting in inefficiency.

The present invention has been made to solve the above-mentioned problems, and as shown in FIG. The table (20) and the inner surface cleaning device ft( 30), an annular outer surface cleaning device (6) equipped with a water spout surrounding the outer periphery of the vibrator; a device (50);
An inner surface drying device (60) that blows compressed air onto the inner surface of the vibrator while it is clamped during transportation is installed on the conveyor (60) in that order.
2, 3) It is characterized by being connected and continuous by Ic.

Of course, preferably, the pipes carried out one by one from the inner surface drying device (60) are subjected to eddy current flaw detection (70) one by one by the conveyor (4) in the same way as described above, and are then subjected to the eddy current flaw detection (70) while being transported. The inspection table (80) is then transferred to the inspection table (80) K by the conveyor (4), and then to the storage area (7a, 7b) where it is classified according to quality via the conveyor (5).

7c).

The alignment table device (20) according to the present invention is
) A swingable walking beam (24) is disposed between the pipes, and the pipes placed on the upper end of the slope are successively rolled and aligned until they reach the lower end of the slope, where the kicker (28 ) This is a device in which the pipes are pushed into the rollers (2) one by one (4) from the vc.

The walking beam (24) is swingable because its upper end is pivotally supported on a fulcrum (26), and its lower end is connected to a crankshaft (25). This means that the side is made to appear and retract by repeating the upper surface of the fixed rail. And on the upper end side, there is a fixed frame (21) that protrudes from the rail (23), and an austopper (22) that can rotate with one end (22a) as a fulcrum and the other end (22b) above the rail top surface. In addition, there is a second pipe on the lower end side to stop the transfer of the pipe (P).
A stopper (27) is provided.

Now, from the washing tank (1), a crane (not shown) moves a large number of pipes bundled with wire to the rail (23) between the frame (21) of the alignment table device and the austop (22).
) Transferred above. Next, the stopper (22) is rotated clockwise about its one end (22a) as a fulcrum, thereby bringing the other end (22b) below the surface of the fixed frame (23). Next, the aforementioned walking beam (24)
When the same circular motion is performed, the pipes (P) are successively dispersed and aligned one by one while rolling down the rail (23). The pipe (P) that has been forwarded by the walking beam (24) and has reached the lower end of the beam is stopped in the state shown in Fig. 6 (A) by the second stopper (27) provided there. At that point, the hitter (28) is located below the second stopper (27) as shown, but the hitter (28) is then projected above the stopper (27) by a known cam or link mechanism (not shown). Upon this protrusion, the leading pipe (Pl) is lifted up, and the pipe (Pl) is moved by the four parts (28
a) It rolls into and is held. Next, Kitsuka (28
) is again positioned below the surface of the onistopper (27), the leading pipe (Pl) held in the recess (28a) as shown in the same figure (c) is moved to the onistopper (27).
28) It rests on the top, then rolls down the slope and automatically rolls onto the drum-shaped roller (2a). Since the rollers (2 to 2) are of course given a rotational motion with their axis as the rotation axis, the pipe is made up of multiple rollers moving in tandem. easily transported to

The above-mentioned operations (a) → (b) → (c) are of course repeated, and as a result, the pipes are transferred one after another to the roller conveyor <2
) are transferred one by one onto the row conveyor in the arranging directions t and c14.

In the equipment of the present invention, the vibrator No. 1 is transferred one by one by the roller conveyor (2), and then sent to the inner surface cleaning device (30), where the inner surface is cleaned by a pressure water injection nozzle. I can do it.

Of these devices, the devices shown in Figures 4 and 5, which show the case of cleaning three vibrators at a time, will now be described. That is,
This device has a loading section (A) for loading the pipe (P), and a conveying belt (301) only when the pipe is fed one pitch at the loading end.
a conveyance section (B) which performs an intermittent cycle motion in which three of the pipes (P) are successively loaded on the upper holding claw (501a) and then the conveyance band (501) is idly fed by a pitch; There is a clamping part (0) that simultaneously lifts and securely clamps three pipes (P) during transportation, and a clamping unit (0) that simultaneously lifts and securely clamps three pipes (P) that are being transported.
) A cleaning machine (D) that cleans the inner peripheral surface at the same time, and a conveyor (B) after cleaning is carried out (8).
An unloading section (E) that unloads books to an appropriate location outside the destination, and a holding section (F) that holds the intermediate part of the pipe (P) during fixed clamping and transportation.
).

The conveying section (B) and the clamping section (0) are located close to each other,
In addition, a pair of pipes are provided facing each other at both ends of the pipe (P).

Then, the conveying part (B) and the clamping part (0) on the washer (D) side of the pipe (P) are installed in a fixed position.

On one side, the conveying part (B) and the holding part (0) at the other end of the pipe (P)
) is provided on a movable cart (302) so as to be able to move according to the length of the pipe (P) in order to transport and fixedly clamp a pipe (P) of any length.

The loading section (A) consists of a plurality of conveyor rolls (2) arranged along the longitudinal direction of the cleaning device, and a plurality of swinging arms (304) arranged on a support frame (303).
2) Bring in the pipe (P) loaded on top. (305)
is a stopper that regulates the end face position of the pipe to be carried in and the drive and stop of the roller (2).

The carry-in section (A) has the above configuration by swinging the swing arm (304), and the carried-in pipe is attached to the holding claw (301a) on the conveyance 1 (301) waiting at the carry-in end of the conveyance section (B). However, the swing of the swing arm (304') is controlled by the transport section (B).
Adjust it to intermittent cycle operation. In other words, after oscillating three times in a row, it is paused for a certain period of time, and the holding claw (
No pipe is supplied to 301a), and t)<
.

The conveying section (B) has a large number of holding claws (301&) provided at equal intervals on an endless conveying belt (3[]1), and the holding claws are set at one pitch and are driven by a drive source (not shown). , which performs the intermittent cycle operation described above. Therefore, by matching the swinging of the swinging arm (304) with the intermittent cyclic movement of the conveying section (B), the holding claws on the conveying belt (301) can hold three pitches for continuously loading pipes. The holding claws for the six pitches and the holding claws for the other six pitches will appear alternately. Then, the holding claws of the conveyance sections (B) on both opposing sides are moved intermittently in synchronization with the same phase.

The gripping portion (0) consists of an upper claw body (307) and a lower claw body (30B) that are slidably attached within the gate frame (306). The upper claw body and the lower claw body are connected to gears (309) and (310) which are fixed to each other.
311)vc, and the lower claw body (608
) are connected to the pipes (312) so that the pipes are slid the same distance, and the pipes are always fixedly clamped on the same center.

The holding part (0) has both claw bodies (307, 308) that hold both ends of the pipe loaded on the holding claws (301 &) at the 4th, 5th, and 6th pitches counting from the carry-in end of the conveying part (B). It is installed so that it can be lifted and fixedly clamped. And the clamping part (0)
The pipe is fixedly held by the vibrator while the conveyance section (B) performs one-pitch conquest and two-pitch intermittent shifts, and the pipe is held at a fixed height by the claws that hold the pipe so that the conveyance section (B) can freely perform intermittent shifts during this time. (301a).

One or more holding parts (l) are provided between the facing transport parts (B), and are provided on the movable cart (313) to hold the intermediate part of the pipe to be transported and fixedly clamped.

The holding part (F) is the same as the above-mentioned transport part (E), and is a transport part (B') that performs intermittent cycle motion in synchronization with the same phase.
and a button (314) provided adjacent thereto. The button (314) is the button (3) of the holding part (Q).
12), and the middle part of the pipe is lifted, clamped, and held by a holding block (315) at the tip.

In addition, the conveyance section (L) and the conveyance section (B') are synchronized with each other in phase A and perform "cycle motion" intermittently, so these are
It may be driven by the drive source of i-, and therefore the transport section +rQ, CB') of tl et al. can be made into a single unit.

The cleaning machine (D) performs VC cleaning on the six pipes fixedly clamped by the ten-piece clamping part (C) and the holding part ([I.]) between the two fixed clamps. In other words, cleaning is completed before the subsequent uncleaned pipe reaches the clamping part.

The washing machine (D) consists of a pump unit (317) fixed to a mobile cart (315), three long water supply pipes (318) fixed to this pump unit, and these supply pipes. The movable trolley (
As the nozzle head (316) moves forward and backward, the nozzle head (31
9) The inner diameter of each vibrator (
11) The inner circumferential surface is cleaned by a jet stream of cleaning water sprayed from the nozzle head by reciprocating the inside.

During cleaning, the empty holding claw (301a) that does not carry any pipe advances twice for each pitch until it reaches the position directly below the clamping part (0) [7 times], and when cleaning is completed, the upper claw body (507) The lower claw body (30F3) opens and the lower claw body (308
) and the holding block (315) are lowered in synchronized translation, and each pipe that has been cleaned is loaded onto the empty holding claw. Through the series of operations described above, cleaning has been completed.
The actual pipes will be loaded onto the empty holding claws that are three pitches closer to the carry-in end than the holding claws that were loaded before cleaning, and the pipes that were loaded with the pipes before cleaning will be loaded onto the empty holding claws that are three pitches closer to the delivery end. The nail becomes empty.

Thereafter, in the same way, while supplying the K pipe to the conveying section (B), cleaning the pipes that reached the 4th, 5th, and 6th pitches, and repeating the intermittent cycle movement of the conveying section (B), Each pipe that has been cleaned is transported and reaches the discharge end. In order to supply one pipe to the unloading unit (IC), the number of pitches of the holding claws between the loading end and the unloading end of the conveying device (E) is (12) 3n-1 (n≧4). stipulated in

That is, at the discharge end, the holding claws loaded with pipes are fed one pitch at a time, and the empty holding claws are fed three pitches at a time.

The unloading section (K) includes a waiting stopper (323') operated by a large number of conveyor rollers (6) arranged along the longitudinal direction of the cleaning device and a button (322) fixed to a support frame (321). ).

The waiting stopper (323) stops receiving the pipes conveyed one by one to the discharge end of the conveyance section (E) for one day, and
B) is released from the restraint, and after confirming that there is no pipe on the conveyor roller (6), the pusher (622) is completely lowered and the pipe is fed onto the roller (3).

The conveyor rollers (6) are constantly driven in the same direction in the carrying-out direction, and carry out the loaded pipe to the next process.

Now, the operation of the cleaning device having the above configuration will be explained.

The swinging arm (31]4) of the loading section (A) is connected to the transport section (
B) and the conveying section (B') attached to the holding section (F) are fed one pitch each time, and then intermittent cycle operation is performed in which feeding is carried out six pitches at a time. Then, the loading section (
The pipe (P) that is intermittently carried in from A) is supplied to the three-pitch holding claws (301a) of the conveyance section ff (B) and (B') waiting at the carry-in end.

After this, the swinging arm (304) is stopped and the pipe supply is stopped, and during this time the conveying sections (B) and (E')
advance six pitches at a time, first transport the six pipes loaded on the holding claws to just below the clamping part (0), immediately operate the pushers (312, 314), hold each pipe and and clamp it in place.

The conveying units (B) and (B') are released from the restraint by the fixed clamps and are fed out again by one pitch each time, and at the same time, the swinging arm (304) swings, and the second pipe is transferred to the transporting device (B). , (B').

While the second pipe is being supplied, as the movable cart (316) of the cleaning machine (D) moves forward and backward, each nozzle head (319) reciprocates within the inner diameter of the six pipes and sprays. The inner peripheral surface is cleaned by the flow.

When cleaning is completed, the first holding claw (301a) loaded with the second pipe has reached the front of the clamping part (0), and the empty holding claw that does not carry any pipe from the beginning is in front of the clamping part (0). I'll be waiting downstairs.

In the above state, the lower claw body (308) of the clamping part and the holding block (315) of the holding part are lowered, and each knob is loaded onto the empty holding claw. When the cleaned nozzle is loaded, the transfer device %/ (B), (B'
) is advanced three pitches at a time, and thereafter the same operation as described above is repeated a predetermined number of times, and the cleaned pipe is carried out to the carrying-out end.

At the unloading end, there is a holding claw (
301a) is always sent to one pitch each time, and this pipe is once transferred to the standby stock pipe (323) in the unloading section (E).
T Confirm that the pipe is hot at the receiving and conveyor rollers (3) before feeding it to the rollers and carrying it out.

Thereafter, the six pipes are continuously supplied to the conveying devices (B) and (B') at the loading section (A), and these are fixedly clamped during conveyance, and the inner circumferential surface of the pipes is After cleaning (15), the cleaned pipes are again conveyed by the conveying devices (B) and (B'), and at the unloading end, they are transferred one by one to the next process by the unloading section (E). It will be carried out.

The pipes thus subjected to internal cleaning are removed from the device and transferred onto the conveyor rollers (3), during which time they undergo the next step of external cleaning.

As shown in Figs. 6 and 7, the external cleaning device (40)
A pipe body (401) that surrounds the pipe (P) provided between the rollers of a drum-shaped conveyor roller (3) that transfers the pipe (P) and transports it in the direction of the arrow. A large number of water ejection holes (402) are provided on the inner surface of the pipe to direct the water to the outer surface of the pipe to be transferred.

Since the pipe body is connected to the central water supply pipe (403) K, the cleaning water passes from the water supply pipe (403) through the pipe body (401), is ejected from the spout hole (402), and is transferred. It is squirted into the pipe inside and can clean the surface of the pipe.

The pipe thus externally cleaned during transfer is then continuously transferred to a hot water washing device (50) VC and continuously washed with hot water (16). Most of this has been cleaned by the inner and outer cleaning equipment in the previous process, but the entire pipe has also been cleaned by
This equipment is used for finishing cleaning and raising the pipe temperature to speed up drying by removing VciJ residue in 90°C heated water. A suitable hot water washing device (50) used for this purpose will be explained below.

In Figures O8 and O9, (505) is a hot water washing tank;
(506) is a heat insulating cover, and (507) is an endless chain drive mechanism installed vertically within the hot water washing tank and the heat insulating cover. The drawing shows a case with three units. This chain drive machine Nlt (507) has a drive shaft (5
08) Upper upper chain sprocket (509) and lower chain sprocket (5) on the hot water washing tank (505) side.
10) and an attachment (511) between both sprockets (509, 510)
It is used in large quantities. The attachment (511) is constructed by extending links at predetermined intervals of the chain (512), and a Qζ recess (513) is provided in the middle (O8
(see figure). The attachments are positioned at predetermined intervals in each chain mechanism, and are designed so that the pipes are inclined in a predetermined direction when carrying the pipe (P) taken out from the hot water washing tank. (514) is the upper chain sprocket (507) of each chain mechanism (507).
509) is provided on the drive shaft (508), and is provided with a kicking member (515) protruding at the same pitch as the attachment (511) at a position 11n Fifr on its circumference. . (516) is a guide rail provided along the tip trajectory of the attachment.

A guide rail (
The pipe that is intermittently supplied to the carry-in path (517) of 516) rolls on the rail and is transferred onto the attachment.
With the intermittent operation of the chain drive mechanism, they are sequentially immersed in hot water in the hot water washing tank. The intermittent operation of the chain drive mechanism causes the pipe to come into contact with hot water and the accompanying impact.
Promote its cleaning. Moreover, since the pipe rolls on the surface of the guide rail (516) in the hot water, all oils and fats on the inner and outer surfaces of the pipe are washed away. Then, the pipe rolls on the surface of the guide rail (516) (attachment) (
511), and in the horizontal state (19) of fyf4, the attachment rolls into the recess (513) and is stably placed. This thing is an attachment (511)
This prevents the pipe from being sandwiched between the guide rail (516) and the pipe from being damaged.

The attachments of each chain IIA tlt are located at predetermined intervals, so the pipes
As shown in the figure, each of these attachment fins IIc is supported with an inclination in a predetermined direction, so that when the hot water washing tank is taken out, the hot water that has flowed into the inner surface of the hot water washing tank is discharged.

Therefore, the drying process can be performed quickly and easily.

Then, when the pipe is pushed up by the chain drive mechanism, the pipe of the attachment (5111) is driven in synchronization with the chain (512) and comes into contact with the chain (511) slightly ahead of it. Kicking part IIV (515) of Kitsuka (514)
It is taken out from the unloading path (51B) and transferred onto the unillustrated transport roller (4). Note that the kicker may be a mechanism using a general cylinder instead of the kicking part H.

(20) In this way, this device can automatically clean the pipe continuously for one day. In addition, a heat insulating cover (506) F! installed above the hot water washing tank! This reduces heat dissipation from the chain and attachments that come out of the hot water, contributing to improved thermal efficiency.

The pipe (P) that has thus completed the hot water washing process is transferred to the unloading path (5).
1B) and enters the next process device, the inner surface drying device (60). The following are example drawings 10th to 14th.
The inner surface cleaning of a pipe using this device will be explained with reference to the figure.

As shown in FIG. 10, this device a has a conveyance path, which is an endless conveyor (601) that is equipped with V-shaped attachments (602) at predetermined intervals, and is fed at a constant pitch, and The clamp mechanism (60
5) And a bottle! The pipe curvature regulating mechanism (604) and compressed air injection nozzle (605) shown in Figures 11 to 14
) is the main part, and in FIG.
607) is the unloading path. The carry-in path (606) may be the carry-out path (518) of the hot water washing device itself.

Clamp mechanism (603)U, as shown in Fig. 11 and Fig. 14, a plurality of clamp claws (608) and (609) located on one side of the chain conveyor (601)
609). Before operation, these clamp claws are located at equal distances from the clamp position (A) of the pipe (P), as shown in the 13th jump. The pipe bending direction regulating machine (604) is shown in FIGS. 11 to 14.
As shown, it has two rollers (610, 611), and the injection nozzle (605) is fixed at a concentric position of the pipe toward the clamp position (a). The bending direction regulating mechanism (604) is disposed on both sides of the conveyor (1) [+1], and when the pipe (P) is supplied to this position with the intermittent operation of the conveyor, the mechanism (604) controls the upward movement. and support the bottom of both ends of the pipe. As a result, the direction of the pipe, which is curved due to the influence of heat during contact with the pot or during cleaning in hot water, is regulated so that the curved portion faces downward.

After that, the upper clamp claw (608) of the clamp machine f# (603) performs the lowering operation, and the lower clamp claw (60
9.

609) respectively perform the upward movement at the same speed. At this time, the lower clamp claws (609, 609> support one end of the pipe on the rollers (610, 611) during their operation and rise.
08) and (609, 609) stop each operation and clamp the pipe when the upper clamp claw (608) comes into contact with the pipe. Each clamp claw (608) and (6
09.

The effective stroke of 609) is L q = (l) because these claws move at the same speed even when starting and moving at the same distance from the clamp position (A).

However, d is the distance between both claws during clamping. Therefore,
The center O at the pipe clamp position (a) K is always constant regardless of the pipe diameter. After clamping, the roller in the bending direction regulating mechanism retreats, and the pipe
It is supported as shown in Figure 4.

And the concentric position of the pipe at this clamp position]a
An injection nozzle (605) is located in the pipe, and compressed air is injected from the injection nozzle onto the inner peripheral surface of the pipe. By the way, there is some hot water with a certain humidity remaining in the lower curved part of the inner surface of the pipe shown in FIG. Intense absorption of heat occurs with the evaporation of As a result, the temperature change is more severe on the lower inner surface of the pipe than on the second inner surface, and the Korean music portion undergoes severe thermal contraction. The pipe is thus corrected for its curvature and becomes straight.

At the same time, the inner peripheral surface is dried.

In this way, the pipe that has been transported and dried on the chain conveyor (601) rolls on the slope of the delivery path (hu 7) and is transferred onto the belt conveyor (4), where it is transferred to the eddy current flaw detection device for the next process! (70).

As described above, according to the equipment of the present invention, the pipes pulled up from the cleaning tank (1) are lined up one by one, and the inner surface cleaning, outer surface cleaning, hot water washing, and inner If drying are all carried out in a continuous flow rate. Because all of these processes were carried out manually, compared to washing and drying equipment that had been carried out in batches, it was possible to achieve a remarkable labor-saving effect.

Note that after finishing the inner surface drying in the equipment of the present invention and before shipping, it is necessary to inspect the pipe itself (for any flaws it has) and to classify it into a pass/fail grade based on the results24. For such flaw detection and sorting, an eddy current flaw detector (7Q) equipped with an eddy current flaw detector guide (No. 54-85752), which was separately developed by the applicant, is installed on a belt conveyor (4) as shown in Figure 1. If the four-shaped member sorting device (also disclosed in Japanese Patent Application No. 54-78833) is used to sort the pass/fail grade, the entire process after being placed on the alignment table (20) can be carried out in tandem. In other words, the middle mark (
80) shows an aligning device and a sorting table according to the invention, and a sorting device and a roll conveyor (5) are shown.
It is transferred and loaded onto the pipes ff1 (6a, 6b, 6c) via the pipes ff1 (6a, 6b, 6c).

In addition, in Fig. 1, the mark (so') indicates the inspection table (80).
The mark (90) is a non-destructive inspection device such as an ultrasonic flaw detection device that is attached as a post-process to the external cleaning device, if necessary. be.

[Brief explanation of the drawing]

Figure J-1 is a plan view of the equipment according to the present invention, Figure 2 is a side view of the alignment table device, Figure 3 is a side view of the inner surface cleaning device,
Fig. 4 is an explanatory diagram of the pipe kicking mechanism in the device shown in Fig. 6;
Figure 4 is a positive rfi diagram of the pressure water injection inner surface cleaning device, Figure 5 is its side view, and Figure 6 is a side view of the outer surface cleaning device.
The figure is its front view, Figure A-8 is a schematic cross-sectional side view of the hot water washing device, Figure 9 is a schematic front view showing part of the chain drive mechanism of the same device A schematic diagram showing the overall arrangement of , A-11 is a sectional view at the clamp position,
FIG. 12 is a cross-sectional view taken along line XX of the bottle in FIG. 11, FIG. 16 is an explanatory diagram of the operation of the clamp mechanism, and FIG. 14 is a diagram showing the relationship between the air injection mechanism and various parts. 1 is a preliminary cleaning tank, 2, 3, 5 are roller conveyors, 4
is a belt conveyor, 20 is an alignment table device, 60 is a vibrator inner surface cleaning device, 40 is an outer surface cleaning device, 50 is a hot water washing device, 60 is an inner surface drying bag jk s 70 vortex cleaning device,
80 is an inspection table, 601 is a conveyance belt, 302 is a moving cart, 3031d is a support frame, 304 swing arms, 605 is a stopper, 606 is a gate frame body, 307 is an upper claw body, 30
8 is the lower claw body, 309 is the rack, 611 is the gear, 312
is Butushya, 613 is a moving trolley, 614 is Pushsha, 3
15 is a holding block, 316 is a moving cart, 317 is a pump unit), 318u supply pipe, 619 is a nozzle head,
320 piping, 321 support frame, 622 bushing, 3
23 is a stopper, 401 is a pipe body, 402 is an ejection hole, 40
6 is a water supply pipe, 505 is a hot water washing tank, 506 is a heat insulation cover, 507 is an endless chain drive mechanism, 508 is a drive shaft, 509 is an upper chain brocket, 510 is a lower chain brocket, 511 is an attachment, 512 is a chain, 513 is a recess of the attachment, 514 is a kicker, 515 is a kicking member, 516 is a guide rail, 51
7 is a carry-in path, 518 is a carry-out path, 601 is an endless conveyance path, 6
02-key gamma attachment 603 is a clamp mechanism, 60
4tt-1 number of curve direction regulation mechanism, 605 is injection nozzle, 6
06 is the loading path, 607 is the loading path, 608 and 609 are the clamp claws, and 610 and 611 are the rollers.Applicant Nissin Steel Co., Ltd. Patent Attorney Mibuya Doishima (and 1 other person) (27)

Claims (1)

[Claims] 1) An alignment table device (20) that sends out the pre-cleaned pipes one by one! : an inner surface cleaning device (60) for inserting an inner surface cleaning nozzle into the pipe and spraying aqua regia to clean the pipe fed into the endless conveyance belt before the pipe is conveyed to the discharge end; , an annular external surface cleaning device (4G) equipped with a water spout that surrounds the outer circumference of the pipe, a hot water washing device (50) that continuously immerses the pipes one by one into a hot water tank and then lifts and sends them out, and a clamp during transportation. an inner surface drying device (60) that blows compressed air onto the inner surface of the pipe in the
2) Continuous pipe finishing equipment characterized in that the pipes are continuously cleaned in that order by means of a conveyor belt.2) The inner surface cleaning device is equipped with an endless conveyor belt in which a large number of holding claws are provided at equal intervals, and a conveyor belt that is conveyed by the above-mentioned endless conveyor belt. It consists of a clamping part that fixedly clamps the pipe, a cleaning machine having an inner surface cleaning nozzle, and a part of a standby stopper provided between the delivery end of the endless conveyance belt set at a predetermined position and the delivery part, and the above-mentioned The endless conveyor belt t'i performs an intermittent cycle operation that repeats multiple one-pitch feeds and one continuous multiple-pinch feed, and the pipe carried in from the endless conveyor belt is held by the clamping part and pressurized water is sprayed by the inner surface cleaning nozzle. 3) Hot water washing device ( 50) is a system in which an endless chain with attachments attached at predetermined intervals is installed vertically, the lower part of this endless chain is immersed in a hot water washing tank, and the attachments are placed between the pipe entry path and the pipe exit path. The continuous refining equipment according to claim 1), which is provided with a guide rail for the pipe along the tip trajectory; The continuous precision machine according to claim 1 is equipped with a mechanism for regulating the bending direction downward, a mechanism for clamping the pipe after the regulation, and a mechanism for injecting compressed air onto the inner circumferential surface of the pipe. Maintenance equipment 5) Non-destructive inspection equipment (
90) The refining equipment described in claim 1) 6)
In the process after the inner surface drying device (60), ■Inspection table (8
(8)
0') Preparation equipment according to claim 1)