KR20020075236A - Loop carrier type treating apparatus - Google Patents

Abstract

PURPOSE: To satisfy the advantages of a loop system and a reciprocating system exclusive of material jumping. CONSTITUTION: The automatic picking facility for wire coils is constituted by disposing equipments 6 and 7 for pickling, rinsing, lubricating film treating, drying and loading and unloading the wire coils 5 to and from C-hooks 9 below looped conveyance rails 2 and performs the pickling and lubricating film treating of the wire coils 5 which traveling along the conveyance rails 2 by means of a conveyance machine 8 of a C-hook non-separation type having an elevating mechanism. C-hooks are orthogonal with the traveling direction of the conveyance machine 8. Accordingly, the distances between the loop centers can be made compact and building areas can be made smaller and therefore the output can be increased by the increase in the number of treating vessels in spite of the equal quality. In addition, the kinds of the film treatment can be increased. The installation of driving sections for vibrating machines, coil rotating devices, high-pressure cleaning devices, or the like, on the outer side of the conveyance rails is eventually made possible and a maintenance characteristic can be improved.

Description

LOOP CARRIER TYPE TREATING APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loop conveying processing apparatus including a treatment tank for performing various treatments such as pickling, water washing, and coating treatment on the surface of a wire on a coil.

The processing apparatus for processing the surface of the wire rod on the coil to be processed includes a loop conveying processing apparatus in which the hook and the conveying machine are not separated, and a reciprocating conveying treatment in which the hook is separated from the conveying machine and disposed on a pedestal disposed on the treatment tank during the processing. Can be divided into devices. In addition, a hook is a member for suspending and conveying a coil-shaped wire rod here, and it may be called C hook from the shape. In addition, although the wire-shaped wire rod is used as the to-be-processed object, it can be applied to the present invention irrespective of the wire rod on the coil.

The loop conveying processing apparatus has the advantages listed below.

(1) Since the input order of the wire rods on the coil at the inlet of the loop conveying processing apparatus becomes the shipping order of the outlets of the loop conveying processing apparatus as it is, operation management can be easily performed, and troubles such as mixing of the wire rods on other coils are unlikely to occur.

(2) Since the conveyor and the hook correspond one-to-one, each processing time can be managed strictly, which is advantageous in terms of quality control.

(3) Since the wire rod on the coil is suspended at one point in the center, the opening is narrow, and it is easy to install an atmosphere hood (covered to recover the harmful atmosphere. By installing the hood, a sufficient wind speed can be obtained even with a relatively small blower (blower), and the harmful atmosphere such as acid can be discharged to the excluding device without leaking around the processing device. Exclusion apparatus showers the harmful atmosphere to exclude harmful substances, so that the harmful atmosphere can be effectively harmed. In addition, the exclusion apparatus is usually installed outdoors.

The reciprocating conveying apparatus has the advantages listed below.

(1) When processing the wire rod on a coil of a different kind of processing time, the wire rod on the coil loaded later may be processed in advance without disturbing the wire rod treatment on the preceding coil.

(2) Since the hooks intersect with the travel direction of the conveying machine, the installation area is narrow.

(3) The machine height can be lowered compared to the loop conveying type.

However, the loop conveyance processing apparatus has the following drawbacks.

(1) Since the treatment tanks are placed vertically (the length is the same as the conveying direction), the larger the number of the tanks, the longer the line length of the treatment tank rows.

(2) Since the treatment tank is placed vertically, the mechanical devices (devices for various treatments, such as vibrators and driving units of high pressure cleaning devices) attached to the treatment tank are also disposed in the conveying direction (just below the loop-shaped conveying rail) like the treatment tank. It is inconvenient to manage.

(3) Since the hood is installed, the overall height of the processing apparatus, including the lifting mechanism, is increased.

Moreover, the reciprocating conveyance type processing apparatus has the following faults.

(1) Since it is difficult to suspend one point of the wire rod on the coil, the opening of the hanging part is large, and it is difficult to install the hood effectively.

(2) The time management is difficult because of the interference of the carrier with respect to the treatment time setting of each treatment tank (the effect of the carrier processing wire rods on different coils in the same time zone).

(3) If wire rod tracking on coils is not strictly performed, there is a high possibility of mixing of wire rods of different types of coils.

That is, as mentioned above, the conventional processing apparatus has either one or both ends.

The present invention has been made in view of the above problems, and the advantages of both processing apparatuses, that is,

(A) The order of wire input on the coil at the inlet is the order of shipment at the outlet, and operation management can be easily performed.

(B) The hook and conveyer are to be separated and the processing time can be strictly controlled.

(C) An effective hood can be installed with the hook hanging point as one center point.

(D) Reduce the height of the machine and at the same time minimize the flat installation area.

(E) Maintenance and management are improved by installing drive parts such as vibrators and high pressure cleaning devices outside the line.

An object of the present invention is to provide a loop conveyance treatment apparatus for treating a wire surface on a coil that can simultaneously realize the above advantages.

In order to achieve the above object, in the loop conveyance processing apparatus of the present invention, the hook allows the wire rod on the coil to be held in a direction intersecting with the traveling direction of the conveyer. This arrangement makes it possible to align the wire rod arrival order on the coil to the processing unit and the wire rod shipping order on the coil exiting the processing unit, to easily manage operations, to strictly control the processing time, to install a hood, and to shorten the line length of the processing tank. Can be realized. In addition, since harmful atmosphere such as acid can be discharged from the hood to the exclusion apparatus without leaking around the loop conveying processing apparatus, the exclusion apparatus can be washed with the hazardous atmosphere to remove the harmful substances, and the harmful atmosphere can be effectively harmed. have.

A loop conveyance type processing apparatus according to the first invention includes a loop conveyance rail, a plurality of processing tanks disposed below the loop conveyance rail to perform coiled wire rod processing, a conveyer suspended on the loop conveyance rail, and running automatically; A loop conveyance processing apparatus having a hook held so as to be liftable by the conveyer, wherein the hook is configured to hold the wire rod on the coil in a direction intersecting with a traveling direction of the conveyer.

In the first aspect of the invention, the hook is configured to hold the wire rod on the coil in the direction intersecting with the traveling direction of the conveying machine, so that the treatment tank is placed horizontally (takes the length of the treatment tank in the direction crossing with the traveling direction). Arrangement), the process tank line length which is a some process tank line can be shortened.

The loop conveyance type processing apparatus according to the second aspect of the present invention further includes, in the first aspect, a traveling guide rail disposed parallel to the conveyance rail on the roof to prevent the conveyance device from tilting, and the hook is carried in the conveyance. The rail conveyance type processing apparatus of claim 1, which is configured to move up and down along a lifting guide rail installed vertically below the machine.

According to the second aspect of the present invention, even if the distribution of the wire shape on the coil in the hooked state is uneven due to the traveling guide rail, the carrier can be prevented from tilting even if the load distribution is biased, and the center rail can be covered by one point.

In the loop conveyance type processing apparatus which concerns on 3rd invention, in 2nd invention, the said 2nd guide rails for elevating are provided in the said running direction at intervals larger than the outer diameter of the wire rod on the said coil, It is characterized by the above-mentioned. do.

In the third aspect of the invention, by providing two guide rails for lifting in the running direction at intervals larger than the outer diameter of the coil wire, the coil wires can be suspended between the guide rails for lifting and lowering the machine height, and the machine height can be lowered. .

In the loop conveyance type processing apparatus which concerns on 4th invention, it is set as the structure which is provided with the space | gap for buffers between the said conveyance machine and the said hook in 2nd invention. It is characterized by the above-mentioned.

In the loop conveyance processing apparatus which concerns on 5th invention, in 3rd invention, it is set as the structure provided with the clearance gap between the said conveyance machine and the said hook.

In 4th invention and 5th invention, when holding the hook of a conveyer by the structure provided with a clearance gap between a conveyer and a hook, when conveying a vibration to the wire of a coil form in each processing tank, conveyance is carried out. The vibration can be prevented from being transmitted to the device.

In the loop conveyance processing apparatus which concerns on 6th invention, in the structure which installs a vibration apparatus, a coil rotating apparatus, or a high pressure washing | cleaning apparatus toward the direction which intersects the said running direction of the said processing tank in 1st invention-5th invention. Characterized in that.

In the sixth invention, the vibration device, the coil rotating device, and the high pressure cleaning device are provided by installing the vibrating device, the coil rotating device, and the high pressure cleaning device in the direction in which the processing direction of each processing tank crosses (the longitudinal direction of the processing tank). It is possible to install on the outside of the looped conveyance rail, and to improve maintenance and management.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which looked at the outline of the whole schematic structure in the loop conveyance processing apparatus which is this invention from obliquely upward.

2 is an enlarged view illustrating main parts of the loop conveyance processing apparatus according to the present invention.

3 is a schematic explanatory diagram showing a positional relationship between a coil rotating device and a high pressure cleaning device.

It is explanatory drawing explaining the space | gap between a conveyer and a hook.

<Explanation of symbols for main parts of drawing>

1 loop conveying processing device 2 conveying rail

3: treatment tank 4: wire rod on coil

6: arrival device 7: shipping device

8: conveying machine 8b: lifting and lowering guide rail

8c: guide roller 8f: roller

9: hook 10: guide rail for driving

11: high pressure cleaning device 12: coil rotating device

EMBODIMENT OF THE INVENTION Hereinafter, the Example of the loop conveyance processing apparatus which concerns on this invention is described in detail based on an accompanying drawing.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which looked at the outline of the whole schematic structure in the loop conveyance processing apparatus which is this invention from diagonally upward. In FIG. 1, it is a loop conveyance type processing apparatus, Comprising: It comprises the loop conveyance rail 2 comprised in a loop form, and the some process tank 3 arrange | positioned suitably below the loop conveyance rail 2. As shown in FIG. The treatment tank 3 performs various treatments such as pickling, water washing, lubricating film treatment, drying, and the like, and is disposed in the order corresponding to the necessary treatment process. The conveyer 8 is suspended in the loop-shaped conveyance rail 2. The conveyer 8 is a structure which automatically runs along the loop-shaped conveyance rail 2. The main part of the conveyer 8 is comprised from the conveyance trolley 8a, the lifting guide rail 8b, the lifting block 8e, etc. The transport cart 8a is provided with a drive source for automatic driving, a control unit and the like. The lifting and lowering guide rail 8b is provided vertically downward below the transport cart 8a to guide the lifting and lowering of the lifting block 8e. Hooks 9 (also called C hooks in the industry) are provided at the tips of the lifting blocks 8e. The processing tank 3 is arranged so that the length is in the direction intersecting with the traveling direction of the conveying machine 8 (intersecting is specifically orthogonal, but needless to say, there is some allowable range).

The hook 9 has a support 9a and a hook member 9b. The support stand 9a is held by the metal object 8ea (refer FIG. 2) provided in the front-end | tip part of the elevating block 8e. The hook member 9b is bolted to the support 9b. The hook member 9b is a member for suspending the coil-shaped wire rod 5 which is an object to be processed and sequentially conveying it between the respective treatment tanks 3. Below the loop-shaped conveyance rail 2, the stocking apparatus 6 and the delivery apparatus 7 are further arrange | positioned. The arrival apparatus 6 is an apparatus for suspending the coil-shaped wire rod 5 carried in the loop conveyance processing apparatus 1 from the outside of the loop conveyance processing apparatus 1 to the hook member 9b. The coil-shaped wire rod 5 suspended by the hook member 9b moves along the loop-shaped conveying rail 2, and is subjected to the necessary processing in each treatment tank 3 in sequence. The coil-shaped wire rod 5 that has been circulated all over the loop-shaped conveyance rail 2 and has undergone the necessary processing is separated from the hook member 9b in the shipping device 7, and is carried out from the loop conveyance type processing apparatus 1 to the outside. .

It is an important part enlarged view in the loop conveyance processing apparatus which is this invention. In addition, about the same part as FIG. (1), the same code | symbol is attached | subjected and overlapping description is abbreviate | omitted. The conveyer 8 is suspended on the conveyance rail 2, automatically runs by the conveyance trolley 8a, and moves along the conveyance rail 2. The conveyer 8 is a non-separable hook provided with a lifting mechanism, and a platform (not shown) provided with a suspending mechanism and a control device is provided below the conveying bogie 8a suspended on the conveying rail 2. The lifting and lowering guide rail 8b disposed in the travel direction of the conveyer 8 is fixed to the lower portion of the platform vertically and downwardly. Two lifting guide rails 8b are provided at the front and rear of the conveying machine 8 in the traveling direction so as to guide the lifting movement of the hook 9. The lifting and lowering guide rails 8b are not limited to two but may be two or more.

The hook 9 is inverted from the hook device (not shown) installed on the platform to the lifting block 8e suspended by, for example, a wire rope or roller chain (hereinafter simply referred to as a "wire rope") 8d. Hanging in one form of combine The lifting block 8e includes a roller 8f for holding the lifting guide rail 8b therebetween. The roller 8f is arrange | positioned corresponding to each lifting guide rail 8b of the front and back, and comprises each lifting guide rail 8b so that it may be sandwiched between both sides.

The hook 9 has an H-shaped steel support 9a that is umbrella-shaped when viewed from the front on its upper part and is slightly raised upward at both ends. The length of the support 9a is longer than the length of the treatment tank 3, and is mounted on the support plate 4b formed of an inclined plane on the support 4a on the vibrator 4 disposed toward the length of the treatment tank 3. It is configured to lock. That is, the length of the support base 9a is set so that the part which bent upwards may correspond to the support plate 4b locally.

The hook 9 can be suspended from the coil-shaped wire rod 5 by the L-shaped hook member 9b bolted to the support 9a. The hook member 9b is a coiled wire rod 5 in a direction intersecting with the traveling direction of the conveyer 8d (specifically, orthogonal. In addition, even if it is orthogonal, there is a certain allowable range). It consists of hanging. In other words, the wire rod 5 on the coil can be raised and lowered through the hook member 9b by tying the upper portion of the support 9a by the metal 8ea fixed to the lifting block 8e. The hook member 9b is bolted, so that it can be easily replaced when the corrosion is reduced by long term use.

In the case where the load is unbalanced in the hook member 9b due to the distribution of the wire rod 5 on the coil being biased, the hook 9 hanging on the lifting block 8e is guided by the roller 8f to move up and down without tilting. Can be. In addition, the guide rails 10 for traveling are arranged parallel to the conveyance rail 2, and the rotational guide rollers 8c mounted on the conveying machine 8 are arranged so as to sandwich the guide rails 10 for travel. do. With this configuration, when the load bias occurs in the hook member 9b, the load bias can be canceled and canceled by the guide rail 10 for traveling, and the platform can be prevented from tilting.

The distance between the two lifting guide rails 8b disposed vertically and downward in the traveling direction of the conveyer 8 is larger than the outer diameter of the wire rod 5 on the coil, for example, the width (the length direction and the length of the treatment tank 3). The length of the orthogonal direction), the wire rod 5 on the coil can be suspended between the two lifting guide rails 8b arranged in the front and the rear in the traveling direction when the hook 9 rises. Can be lowered.

When the lifting and lowering guide rail 8b is made of a corrosion resistant material such as stainless steel, although not shown, it can be inserted into the hood from the upper opening of the hood and arranged. In addition, the elevating guide rail 8b is capable of raising and lowering the elevating block 8e and the hook 9 without being inclined even under a load bias, so that an effective hood can be provided on the treatment tank 3.

It is a schematic explanatory drawing which shows the positional relationship of a coil rotating apparatus and a high pressure washing apparatus. The same figure A shows the schematic side surface containing a process tank, and the figure B shows the positional relationship of the recessed part seen from the arrow BB in FIG. The high pressure cleaning apparatus 11 becomes a structure which moves and approaches the coil-shaped wire rod 5 suspended by the hook 9 in the processing tank 3. The high pressure cleaning device 11 cleans the inner and outer surfaces of the coil-shaped wire rod 5 in a state of approaching the coil-shaped wire rod 5. At the time of the washing | cleaning by the high pressure washing | cleaning apparatus 11, the coil rotating apparatus 12 receives the coil-shaped wire rod 5 once from the hook 9, and rotates the coil-shaped wire rod 5 forward and reverse.

The high pressure cleaning device 11 includes a bogie 11b that is moved by the motor 11a. The trolley | bogie 11b becomes accessible or isolate | separated with respect to the coil-shaped wire rod 5 suspended by the hook 9 in the direction shown by the arrow 11s. The trolley | bogie 11b is the inner spray 11c supported so that insertion is possible in the coil inner surface of the coil-shaped wire rod 5, and the ring-shaped outer spray 11e which can insert the coil-shaped wire rod 5, and cut | disconnected the upper part partially. Is attached to the tip of the supporting rod 11d. The inner spray 11c and the support rod 11d are supported by only one side by the trolley | bogie 11b, respectively.

In the state where the trolley | bogie 11b approached the wire rod 5 on a coil (the state which moved further to the inside of the processing tank 3 from the position of FIG. A), it tanks with the inner spray 11c and the outer spray 11e. The washing water 11g in 11f is supplied through the pipe 11i by the pump 11h. A supply of washing water 11g is supplied to the inner side of the wire rod 5 on the coil by the inner spray 11c, and the outer side of the coiled wire rod 5 by the outer spray 11e to supply water. do. In this state, the interrelationship between the inner spray 11c, the outer spray 11e, and the wire rod 5 on the coil is shown in FIG.

The coil rotating apparatus 12 has the trolley | bogie 12b moved by the motor 12a, and is moved similarly to the high pressure washing | cleaning apparatus 11. As shown in FIG. The trolley | bogie 12b can approach or isolate | separate the wire rod 5 on the coil caught by the hook 9 in the direction shown by the arrow 12s. The coil rotating apparatus 12 is equipped with the roll 12d for rotating the wire rod 5 on a coil. The roll 12d can be rotated forward and backward by the access separation motor 12c. The roll 12d is supported by only one side by the trolley | bogie 12b.

After the coiled wire rod 5 is hung at an appropriate height with the hook 9, the trolley 12b is moved close to the coiled wire rod 5 to insert the roll 12d into the inner surface of the coiled wire rod 5. When the hook 9 is further lowered in the state where the coiled wire rod 5 is supported by the roll 12d, the coiled wire rod 5 is opened from the support of the hook 9 (see FIG. A) and the roll 12d (Refer to FIG. B) The coil-shaped wire rod 5 also rotates forward and backward in response to the forward and reverse rotation of the roll 12d. In this state, the high-pressure cleaning device 11 is operated to operate the coil-shaped wire rod. Clean the inside and outside surfaces of (5). That is, while the trolley | bogie 11b of the high pressure washing | cleaning apparatus 11 approaches and moves to the wire rod 5 of a coil, the pump 11h is operated. While moving the roll 12d forward and backward, the trolley 11b is moved close to and separated from the coil-shaped wire rod 5, and the washing water is sprayed from the inner and outer sprays 11c and 11e to inward the inside of the coil-shaped wire rod 5. Clean the outside.

It is explanatory drawing explaining the space | gap between a conveyer and a hook. FIG. A is a partial cross section in which the front part of the metal material 8ea is cut out to show the internal space of the metal material 8ea installed on the side of the lifting block 8e and the tip of the lifting block 8e. Perspective portion of the engagement ring 8eb installed at the lower end of the 8ea, the side of the support 9a inserted into the internal space of the metal 8ea, the vibrator 4, each side of the support 4a, the pedestal ( It is explanatory drawing which shows the cross-sectional association of 4b), and FIG. B is explanatory drawing which shows the cross section of the arrow BB part in FIG. The metal object 8ea is a structure in which the lower part is opened and viewed from the side, and projecting the engagement ring 8eb to the lower end part (the U-type tip part) of the U type (inverted U type) to face each other. The upper plunge of the H-beams constituting the support 9a is inserted in the internal space (see FIG. B). Therefore, in the case where the support 9a (hook 9) is suspended by the metal 8ea (elevation block 8e), the upper portion of the H-shaped steel upper plate by the weight of the hook 9 (support 9a) itself. The lunge 9aa is held in a state of being connected to the engagement ring 8eb of the metal 8ea, and the coiled wire 5 (not shown) is suspended and conveyed.

FIG. 3 is an explanatory diagram showing a state in which the support 9a is placed on the support plate 4b with respect to the same portion as FIG. 4A, and FIG. 3 is an explanatory diagram showing a cross section of the arrow DD portion in FIG. When the coil-shaped wire rod 5 is lowered in the processing tank 3 (not shown), the bottom plane of the tip portion of the support base 9a (the bottom plane of the tip-bend portion above the figure) is the treatment tank 3. It is latched in position so that the support plate 4b of the vibrator 4 provided on both sides of the back may be fit. At this time, the elevating block 8e is further lowered to release the state where the upper plunge 9aa of the H-shaped steel is connected to the engagement ring 8eb, thereby forming a void 8ec. The connection state between the elevating block 8e and the support 9a (hook 9) is released by releasing the state where the upper plunge 9aa of the H-beam is connected to the engagement ring 8eb and forming the void 8ec. Is released. Therefore, the vibration from the vibrator 4 is transmitted to the support base 9a (hook 9), and can give an appropriate vibration to the wire rod 5 on a coil, and can perform an appropriate process. On the other hand, since the connection state of the lifting block 8e and the support base 9a (hook 9) is released, the vibration from the vibrator 4 causes the lifting block 8e and the upper structure (e.g., a carrier ( 8) etc.). That is, the gap 8ec acts as a buffering gap between the conveyer 8 and the hook 9, and the vibration from the vibrator 4 causes the lifting block 8e and the upper structure (for example, the conveyer 8). ), Etc.) can be prevented.

In addition, according to the loop conveyance processing apparatus of the present invention having the above-described configuration, the loop conveyance type which required 17 treatment tanks, one dryer capable of processing three coils, one arrival apparatus and one shipment apparatus, each having a distance of 91 m between loop centers was required. The distance between loop centers can be reduced to 38.3 m even if the length of the processing apparatus is 22 units with the number of treatment tanks and one apparatus capable of processing four coils, and one arrival apparatus and one shipment apparatus. The total building area, including 1000 square meters, is now less than 1/2 of the conventional devices. In addition, in the conventional loop conveyance type processing apparatus, the height of the machine height was reduced to 7.9 m, which required 9.5 m below the conveyance rail.

Moreover, in the loop conveyance processing apparatus of this invention, when the arrival apparatus and shipment apparatus of the coil-shaped wire rod are concentrated in arbitrary positions, the arrival zone and shipment zone can be concentrated in one place of a loop, and the installation area can be suppressed and operation personnel concentration can be concentrated. Becomes possible. In addition, by dividing the treatment tank into a pickling selection and a coating treatment selection and arranging the running rail curve in the middle, it is possible to concentrate the load zone and the unload zone at one end of the loop. Centralization of operation personnel is possible.

As described above, according to the loop conveying processing apparatus of the present invention, the distance between the loop centers can be made compact by intersecting the hook direction with the conveying rail on the loop, and the overall building area including the accessory device can be reduced, so that the quality is Despite being equivalent, the production can be increased with the increase in the number of treatment assistants, and the type of coating treatment can also be increased. And for the same reason, drive parts, such as a vibrator, a coil rotating device, and a high pressure washing | cleaning apparatus, can be provided in the outer side of a conveyance rail, and maintenance and management can be improved.

Moreover, when making the space | interval of the elevating guide rail arrange | positioned two vertically rearward behind a running direction larger than the outer diameter of the wire rod on a coil, a machine height can also be lowered compared with the conventional loop conveying pickling apparatus.

In addition, when the structure is provided with a space | gap between a conveyer and a hook, a vibration is not transmitted to a conveyer at the time of applying a vibration to the coil wire in each processing tank.

Claims (6)

A loop-shaped conveying rail, a plurality of processing tanks disposed below the loop-shaped conveying rail to process coiled wire rods, a conveyer suspended from the loop-shaped conveying rails and running automatically, and a hook held to be liftable by the conveying machine The loop conveyance processing apparatus provided with the said loop conveyance processing apparatus WHEREIN: The said loop | hook is a loop conveyance processing apparatus characterized by the structure which hold | maintains the said wire-shaped wire rod in the direction which cross | intersects the running direction of the said conveying machine. The method according to claim 1, The loop conveyance type processing apparatus further includes a guide rail for travel arranged in parallel with the loop-shaped conveyance rail to prevent the conveying machine from tilting, and the hook is a lifting guide rail provided vertically downward to the conveying machine. The loop conveyance type processing apparatus characterized by the above-mentioned configuration. The method according to claim 2, The lifting and lowering guide rails are configured to be provided in the running direction with two larger intervals than the outer diameter of the wire rod on the coil. The method according to claim 2, The loop conveyance type processing apparatus characterized by including the buffer gap between the conveyer and the hook. The method according to claim 3, The loop conveyance type processing apparatus characterized by including the buffer gap between the conveying machine and the hook. The method according to any one of claims 1 to 5, And a vibration device, a coil rotating device, or a high pressure cleaning device in a direction crossing the running direction of the treatment tank.