JPH108293A - Method for transporting object to be treated for surface treatment and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to deal with diversified objects to be treated and to reduce the equipment cost per treating capability by increasing transporting and treating capability with a transporting system having means which are suspended on rails installed above a surface treating device and vertically movably transfer the objects to be treated. SOLUTION: This device consists of the transporting means which suspend baskets 50a, b, c, etc., housing the objects to be treated at the suspending bodies 4 of a transporting device 2 constituting large surfaces and having electrically isolated plural hanging points and execute respective different treatments with one unit of the transporting device, a control means which arbitrarily selects the operations by the programs meeting the treatment specifications of the objects to be treated with each one unit of the transporting devices, steady rest means which prevent the oscillation or rotation of the suspending bodies by restraining the entire stroke from the ascending home positions to descending home positions of the suspending bodies by means of guide rods 21 and guide bars 19, and means which further lower the suspending bodies from the descending home positions then rise again the suspending bodies and return the bodies to the descending home positions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for conveying an object in a surface treatment facility for performing a surface treatment on the object by various means.

[0002]

2. Description of the Related Art Metal surface treatment has been researched and developed with the development of science and technology, and the technology has been used in various fields in the industrial world. The same applies in the field of coating, which covers and protects metal surfaces, in the technology, and progress has been made from brushing to air spraying to automatic coating. With the advancement of such coating technology, electrodeposition coating, which is a part of it, has been developed, and paint particles that have been charged with a DC electric field are transferred to the oppositely charged object to be immersed. There is a coating method, and there are anion type when the charge of paint particles is negative and cationic type when the charge is positive. Since the 1980s, the cationic type has become mainstream, and metal products in various fields such as automobiles, electric appliances, building materials, etc. It is widely used as a rust preventive treatment for steel.

Recently, the following functions have been required for the electrodeposition coating equipment due to the increase in the number of large-sized / singular-shaped workpieces and the diversification of processing specifications in addition to the conventional large-volume small-sized workpieces. It has become. Amount of material to be processed per hour that can be transported / processed compared to conventional equipment (hereinafter referred to as processing capacity)
Is not inferior equipment and must satisfy the following items. (1) A large-sized / unusual-shaped workpiece and a large amount of small workpieces can be easily processed by the same equipment. (2) A required processing step can be selected from various provided processing steps according to processing specifications, and a means for selecting is easy. (3) Each processing time in each processing step can be selected according to the processing specification, and the means for selection is easy. (4) Even if the functions of the above (1) to (3) are added, the equipment has no trouble in transporting the workpiece. (5) The installation area of the equipment shall not increase even if the functions described in the above (1) to (4) are added. (6) Equipment cost per processing capacity satisfies the above conditions (1) to (5), and is lower than conventional processing capacity equipment.

Therefore, in order to realize a surface treatment facility having all of these functions and having many processing steps, when the object to be processed moves from one processing step to the next step as a transfer means, it is connected to another type of transfer apparatus. It is considered that a method using a rail passing above each processing step which does not need to be used is optimal. As a method of this rail, there are a centro trolley method, which has been used in many cases, and an electric hoist method, which has been used in a few cases. In the chain trolley system, all lines are conveyed at the same speed along a rail by a single transfer chain. In the electric hoist system, one electric hoist suspends one or a group of objects to be processed and conveys them along a rail.

[0005]

In the chain trolley system, a single transport chain is used to transport at the same speed.
This is unsuitable because it is not possible to select a processing time and a processing step for each processing step. On the other hand, in the electric hoist system, only one electric hoist is in charge of one processing step, and a large number of electric hoists must be installed in order to cope with many processes. For this reason, the conventional electric hoist system has the following disadvantages. (1) Although the number of electric hoists to be installed in a facility requires a large number, the number of installable hoists is naturally limited. Processing capacity was also low. However, a large number of electric hoists and control for automatic operation thereof are required to divide the processing capacity, so that the equipment cost per processing capacity is high.

Therefore, there is a method of improving the carrying capacity by loading more objects to be processed on one electric hoist. However, this method has the following disadvantages. The bulk volume of the object to be processed increases, and the equipment such as the processing tank and the drying and baking furnace in each processing step must be increased accordingly, which increases the equipment installation area and the equipment cost per processing capacity is expensive. become. In the case of a processing step that requires electric treatment, for example, the processing area of an object to be processed per unit of processing by energization increases, so that, for example, in the case of an electrodeposition coating step, the amount of energization increases accordingly. Therefore, a large capacity rectifier and power receiving equipment are required for this purpose, and equipment cost per processing capacity is also high. (2) On the other hand, there is a method of increasing the number of electric hoists provided in the facility to increase the processing capacity without increasing the packing capacity. In this case, in addition to the large number of electric hoists used, Since an extremely expensive control system must be used to automatically operate these many electric hoists, the equipment cost per processing capacity has to be further increased and is not practical.

(3) The suspended body is suspended by a chain or a rope of an electric hoist, but most of the suspended points are one point, and even in the case of two points, the suspended distance between these two points is short. In addition to this, as described in Japanese Patent Publication No. 4-9878, a positive effective means for restraining the plane rotation and the back-and-forth swing during the entire stroke of the suspension from the fixed position to the fixed position is taken. The object to be processed contacts or is caught by the equipment installed in the tank under the influence of the liquid flow in the tank at the time of entering and leaving the tank, or by the nearest device / equipment, etc. It often caused serious trouble. For this reason, it has been difficult for conventional equipment to safely and stably transport and process large and peculiar-shaped workpieces by automatic operation. (4) In addition to the reason described in the above item (3), in addition to the above-mentioned reason (3), when a large-sized object is treated in large amounts by the conventional large object-processing equipment, a hanging frame on which the small object is hung, or a small object to be treated. Since no appropriate suspending / suspending means or method for transporting a basket or the like in which articles were stored was taken, these suspending / suspending operations required a large amount of labor. For this reason, it has been difficult in practice to process large and specially shaped workpieces and small and large quantities of workpieces with the same equipment.

[0008]

SUMMARY OF THE INVENTION Accordingly, the present invention solves such inconveniences, reduces equipment costs per processing capacity and minimizes equipment area, and reduces processing steps and processing time according to processing specifications. In addition to making it possible to select items and providing suitable suspension and suspension methods and means for workpieces of any shape and size, transportation, treatment and suspension by automatic operation are provided. An object of the present invention is to provide a method and an apparatus for transporting an object to be processed for surface treatment, which can be easily suspended and suspended.

As means for this purpose, rails are provided along the respective processing apparatuses above the surface processing equipment provided with the respective processing apparatuses in the order of steps, and are suspended on the rails so that the object to be processed can be moved up and down. In the transport system having means for moving the workpiece, the workpiece or the workpiece is placed on each of a plurality of suspension points forming a large surface of a suspension body suspended by a chain or a rope of a hoist constituting a transport device. A transporting means for suspending or fixing a basket or the like in which the articles are stored so that each object to be processed can be in a different processing step at each suspension point at the same time; Anti-swing means for restraining the suspension between the entire stroke from the ascending fixed position to the descending fixed position of the suspension with the guide rod and the guide rod to prevent the suspension from swinging or rotating;

[0010] The suspension unit is insulated from the transfer device and also between a plurality of suspension points of the suspension unit, and the objects to be processed or the objects to be processed suspended or fixed at the plurality of suspension points are stored. Means that each of the baskets and the like can be electrically independent, and at the same time can be in different electric processing steps for each suspension point, and the object to be treated is combined with various sensors and an automatic operation control device. In accordance with the processing specifications of the above, the control means for selecting an arbitrary processing step passing through the unnecessary processing step, and selecting the processing time by stopping for an arbitrary time in the selected processing step, and a type having a similar size and shape. Not only suspension of the object to be processed, but various types of objects to be processed ranging from small to large and even unique shapes are arbitrarily selected for each of a plurality of suspension points of the same suspension. Hanging in combination A transfer method in the surface treatment consisting of a means to be able to transport and process.

[0011] As a transfer device used in the above method, a suspended body having a plurality of suspension points forming a large surface is suspended by a chain or a rope of a hoisting machine, and is provided with a traveling machine or towed by a towing machine. Suspended on a rail, a workpiece or a basket containing the workpiece is suspended or fixed at each of a plurality of suspension points, and vertically moved by a hoist, and a traveling machine Alternatively, it can be moved by a towing machine, and different processes can be simultaneously performed on these suspended or stored objects. A guide bar or a guide frame or a guide roller or a guide roller, which is a flat plate, is formed by fitting a guide rod and a guide rod so as to restrict the entire stroke of the suspension from a fixed position to a fixed position. A suspension device provided at an appropriate position of the hoisting machine and the suspension, and a guide rod end having a socket for facilitating catching of the end of the guide rod. When the guide rod is further lowered from the fixed lower position and rises after the guide rod comes off from the guide rod, the receptacle of the guide rod captures the end of the guide rod and allows the fitting relation to return to the original state.

[0012] Further, the object to be processed or the object to be processed suspended or fixed to the plurality of suspension points is also insulated from the transfer device and between the plurality of suspension points of the suspension body. The baskets and the like that housed therein are electrically independent of each other, so that they can be in different electric processing steps at the same time. Furthermore, the object to be processed is placed on a dedicated transport vehicle while being hung, and is movable. The hanging object and the hanging object which can be suspended from the hanging object by suspending the whole object on the hanging object, or the reverse procedure. A transport vehicle and the use thereof are made possible.

[0013]

The conveying device comprises a traveling machine or a traction machine for indexing the same, a hoist, and a suspension having a plurality of large suspension points suspended by a chain or rope of the hoist and capable of moving up and down. It consists of a suspension, a hoisting machine, a guide rod attached to the suspension, and a shaker consisting of a guide rod, and the traveling machine or the towing machine and the hoisting machine are controlled by an electric motor provided respectively, through an automatic control signal. The running and vertical movement of the suspended body are allowed. The transfer device is suspended above a variety of processing devices provided according to the order of the processes on rails provided along these facilities.

This transfer device suspends an object to be processed or a basket or the like containing the object to be processed at each of a plurality of suspension points of the suspension body, and the suspended object to be processed moves up and down or travels. In the various processing steps, different processes are sequentially performed on the respective suspension points simultaneously. In this way, the transporting device that has completed the various processing steps moves to the suspension field of the workpiece and suspends the workpiece, and then suspends the new workpiece in the suspension area and returns to the original location. Return to the processing step. Since the suspended body is insulated from the transfer device and also between a plurality of suspended points of the suspended body, the objects to be processed suspended at the plurality of suspended points are simultaneously treated by different electricity. Is possible.

Since the transfer device can move up and down a suspension having a plurality of suspension points forming a large surface, when suspending the object to be suspended from the suspension, the object is transported by a transport vehicle or a carrier. Using a conveyor or the like, the object to be processed can be directly carried directly under each suspension point and suspended. Even if the object to be treated has a large peculiar shape and has an eccentricity, each of the suspension points of the suspension forms a large surface, so that these may be suspended at arbitrary multiple points. Can be done.
For this reason, the suspension work is facilitated, and the conveyance and processing in a stable posture are enabled. Similarly, for a large amount of small objects to be processed by using the up-and-down movement of the suspended body, a hanging transport vehicle with hanging objects that previously hung these objects at a place other than the equipment installation location is used. Prepare it, carry it in just below the suspension point, suspend the hanging device on the suspension, and lift the suspension to leave the suspended transport vehicle and place the workpiece on the hanging device. By making it possible to transport and process while hanging, it is possible to significantly reduce the hanging and hanging work in the equipment as in the past, making it possible to greatly simplify the work and make it safer. Large and peculiar shaped workpieces and large quantities of small workpieces can be easily processed with the same equipment. In the case of suspension, it is possible to perform the procedure completely opposite to the suspension, and similarly, the work of hanging and hanging in the equipment is significantly reduced, and the work is greatly facilitated and safety is achieved.

Since the suspension body is elongated by providing a plurality of suspension points forming a large surface on the suspension body, the suspension body can be suspended at a plurality of points at long intervals. The stability of was greatly improved. Further, between the hoisting machine and the suspending body, a swing rod comprising a guide rod and a guide rod for restraining the swinging and plane rotation of the suspending body during the entire stroke from the fixed position of the suspended body to the fixed position of the suspended body. Since the posture of the suspended body and the suspended workpiece is always stable even during the running, ascending and descending operations, the shape of the workpiece is Even if the object has a large size,
Safe and stable operation without trouble during processing has become possible. In addition, the end of the guide rod has a trumpet-shaped opening to make it easier to catch the end of the guide rod, so the suspended body descends further from the fixed position and the guide rod moves from the guide rod. When ascending again after being removed, the guide rod receptacle catches the end of the guide rod and can return to its original lowered position. As a result, the suspension body can freely descend further from the descending fixed position,
For example, even if the object to be processed is still placed on the floor, it can be easily suspended on a suspended body, and the object to be suspended suspended on the suspended body can be easily dropped directly on the floor. ing.

Since the operation of the transfer devices is performed for each of the vehicles by moving and moving the suspension up and down through signals from the central control panel, the selection of an arbitrary processing step and the processing time according to the processing specifications for each transfer device. Can be selected. Thus, for example, in an electrodeposition coating facility, the following selections are possible. A processing step selection that includes a plurality of electrodeposition coating / post-processing steps of different colors and selects a color electrodeposition coating / post-processing step according to the coating specifications. After finishing the pre-treatment process, skip the electrodeposition coating / post-treatment process, perform draining and drying with a drying and baking device, and select a treatment process that does not select the electrodeposition coating / post-treatment process. Selection of processing time to lengthen or shorten the degreasing time according to the amount of fats and oils adhering to the object in the manufacturing process. Depending on the quality of the coating with the shape of the workpiece,
Selection of processing time to lengthen or shorten the electrodeposition time in the electrodeposition tank. Depending on the type of paint or the heat capacity of the workpiece,
Selection of the processing time to lengthen or shorten the drying and baking time in the drying and baking furnace. In addition, these controls are based on the fact that only a limited number of transfer devices are suspended in the facility due to the improvement of the transfer capability by enabling the suspension of the workpiece to the plurality of suspension points of the same suspension. It is possible with an inexpensive automatic operation control system without using an expensive automatic operation control system.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the means and method according to the present invention are embodied by using a commercially available self-propelled horizontal two-point hanging electric chain block will be described below. A description will be given using a case of an electrodeposition coating facility including a two-electrodeposition coating / post-processing apparatus and a dry baking processing apparatus. 1 and 2
And FIG. 3 shows the structure of the transfer device 2 suspended on the rail 8.
FIG. 4 is a view for explaining a part of the configuration of the suspension 4 in detail. In the figure, reference numeral 2 denotes a transfer device that embodies transfer means,
Two traveling machines 6 attached to the rails 8, one hoisting machine 3 having two suspension points by a chain 9b, and a plurality of suspension points 10a, 10b, 10c forming a large surface. A guide rod 19 and a guide rod 21 are attached to one suspension body 4 suspended from the vehicle, the hoisting machine 3 and the suspension body 4, respectively, and the traveling and suspension of the transfer device 2 is performed by the traveling motor 6a and the hoisting motor 9a. The winding and returning of the body 4 can be freely performed through an automatic control signal.

4 is a plane suspension point 10a, 10b,
10c is a rectangular frame-shaped suspension body 4 provided at three places, and is combined with steel to form a rectangular outer frame 11 and an auxiliary frame 12
a corresponding to the outer frame 11 and the suspension points 10a, 10b, 1
The outer frame of the suspension portion 10b is formed to have the same width as the outer frame of the suspension frame 10b, and the auxiliary frame 13 is provided at appropriate intervals.
2b is provided at the center between the auxiliary frame 12a and the outer frame 11 and between the auxiliary frames 12b so as to divide the length equally, the mounting member 14 is installed upright at an appropriate position on the upper surface of the reinforcing frame 13, and the locking shaft 15 is provided. A plurality of members 16 and locking rods 17 are provided between the outer frame 11 and the auxiliary frame 12a and between the auxiliary frame
a, 10b, and 10c.

Reference numeral 5 denotes a rocking device embodying rocking means, which has two guide bars 19 installed at appropriate positions on the beam 7 of the hoisting machine 3 and auxiliary frames for the suspension points 10a, 10c. 12a
A mounting plate 20 is provided at the center, and a guide rod 21 is installed upright so that a receiving port 21a of a guide rod 21 having a hollow, one opening in the shape of a trumpet is upward, and the guide rod 21 is fitted up with the guide rod 19. And slides as the suspension 4 is raised or lowered. Further, when the suspension 4 is further lowered from the fixed lower position and then raised again to return to the fixed lower position, the receiving port 21a easily catches the tip of the guide rod 19 and the guide rod 21 is engaged with the guide rod 19 again. Have been to return to.

As shown in FIG. 4, the chain from the hoisting machine 3 is used to electrically isolate the suspension 4 from the transfer device 2 and each of the suspension points 10a, 10b, 10c of the suspension 4. The insulating material 55a is provided on the surface of the mounting member 14 for hooking the hook 9b and the hook shaft 15, and then the insulating material 55 is provided between the mounting plate 20 of the guide rod 21 and the auxiliary frame 12a of the suspension 4. The suspension 4 from the transport device 2 and further the suspension 4
The insulating material 55b is provided between the respective suspension points 10a, 10b, 10c. The electrically independent suspension points 10a, 10b, and 10c are energized, and the respective suspended points 10a, 10b, and 10c are energized to energize the suspended workpiece through the suspension tool 53. The plate 51 is attached to the outer frame 11 of the suspension body 4, while a power supply cable 51 c is connected to the upper portion of the outer edge of the processing tank of the processing device requiring electric processing, a spring is built in, and the power supply end 51 b can be pushed in. Is provided insulated from the processing tank with an insulating material 55c. Then, the energization is performed by lowering the suspended body 4 to receive the processing, and the energizing plate 51 of the suspended body 4 pushes the energized end 51b of the energizing tool 51a to make strong contact. In addition, since the insulation method of each part is various, the specific description here is abbreviate | omitted.

In FIGS. 9 and 10, reference numeral 44 denotes the entire hanging carrier, and reference numeral 44a denotes a hanging device mounted on the carrier, which comprises a receiving member 47 having a hanging portion 47a and a hanging frame receiving member. It comprises a bar 48 and a hanging frame 49 having a hanging portion 49a for hanging the workpiece, and the hanging frame 49 is a hanging frame receiving rod 48.
And the hanging frame receiving rod 48 is hung on the receiving material 47,
A concave portion is provided at a position where the receiving material 47 and the hanging frame receiving rod 48 are hung to prevent the hung object from shifting. The workpiece is hung on the hook 49a of the hook frame 49. Numeral 45 is a box body with an open top, and wheels 4 at the bottom.
6, a hanging tool 44a for hanging the object to be processed is placed and movable. The wheels 46 may be omitted when the hanging transport vehicle 44 is moved using a conveyor or the like.

In FIG. 5, reference numeral 22 denotes the entire electrodeposition coating equipment, all of which are provided below the rail 8. Reference numeral 23 denotes a pretreatment device, which is a degreasing tank 24.
・ First washing tank 25 ・ Surface adjustment tank 26 ・ Conversion coating tank 27 ・
2nd rinsing tank 28, pure water rinsing tank 29, sagging water receiver 30
Are arranged in the order of the processing steps. 31 is the first electrodeposition coating
A post-treatment device, including a first electrodeposition tank 32, a first filtrate washing tank 33, a first two-filtration washing tank 34, and a sagging water receiver 3.
5 are arranged in the order of the processing steps. Numeral 36 denotes a second electrodeposition coating / post-treatment device, which processes a second electrodeposition tank 37, a second filtrate washing tank 38, a second filtrate washing tank 39, and a dripping water receiver 40. Are arranged in this order. 41 is a drying and baking processing device such as a drying and baking device, and 42 is a hot air generator 4
This is a drying baking furnace provided with 2a, a hot air circulation fan 42b, and the like. Reference numerals 43a and 43b denote an externally-processed object suspension field and a to-be-processed object hanging place on the suspension body 4 of the transfer device 2.

Next, a specific operation in the embodiment will be described for a case where processing is performed using a basket. Directly below the respective suspension points 10a, 10b, 10c of the suspension body 4 of the transfer device 2 which stands by at the workpiece suspension area 43b,
Baskets 50a, 50b, 50c storing the objects to be processed
Is transported by a basket carrier or a conveyor, etc., and a signal of completion of suspension preparation is sent to the central control panel 5 through the on-site operation panel 58a.
8, the hoist 3 of the transport device 2 rewinds the chain 9b, lowers the suspension 4 to a fixed lower position, and stops. Therefore, each basket is suspended at the suspension points 10a, 10b, 10c by using the suspension tool 53. When a signal indicating the completion of the suspending operation is sent to the central control panel 58 through the on-site operation panel 58a after the suspending operation is completed, the hoist winds up the chain 9b, raises the suspended body 4 to the fixed position, and stops. In this case, in order to make the suspending operation easy and safe, the suspending body 4 is set at a descending fixed position at a height slightly lower than the height when the baskets 50a, 50b, 50c are actually suspended. At the completion of the suspending operation, the suspending tool 53 merely hangs and suspends the suspending point and the basket. Therefore, the loads of the baskets 50a, 50b, and 50c and the objects to be processed are applied to the suspension body 4, and the suspended bodies are actually suspended when the suspension body 4 rises by an extra amount. is there. In addition, the hanging tool 53 used here may be a simple S-shaped bar, but there are various types, and a detailed description thereof will be omitted.

Next, the transfer device 2 starts running upon receiving an automatic operation signal from the central control panel 58, and the leading basket 50a is placed immediately above the degreasing tank 24 of the pretreatment device 23 as shown in FIGS. When it reaches, the suspension 4 is lowered to the fixed position and the basket 50a is put into the degreasing tank 24 to be subjected to a degreasing process. However, during this time basket 50
a, 50b, and 50c have not yet reached the degreasing tank 24 and are not subjected to any processing. When the degreasing process of the basket 50a in the degreasing tank 24 is completed, the baskets 50a, 50b, and 50c together with the suspension body 4 move up to the fixed position, stop for draining the basket 50a, and then advance, and the basket 50a moves forward. After reaching just above the first washing tank 25 and stopping, the suspension 4 is lowered again to the fixed position, and the basket 50a is moved into the first washing tank 25 and the basket 50a.
b is put into a degreasing tank 24 and subjected to each processing. At this time, the basket 50c has not received any processing yet. As described above, the selected processing steps are sequentially finished while repeating the vertical movement and the forward movement. When the processing steps reach the front of the drying and baking processing apparatus 41, the baskets 50a, 50b, and 50c are lowered to the fixed lower position and then dried and bake. After entering the furnace 42 and stopping for a predetermined period of time selected to receive the drying and baking treatment, the furnace is discharged, and then ascends again to the ascending fixed position, reaches the workpiece suspension field 43a and stops. After receiving the suspension preparation completion signal for the object to be processed, which is input to the on-site operation panel 58a, through the central control panel 58, it descends, and after the baskets 50a, 50b, 50c are suspended from the suspension 4 at the descending fixed position, The transfer device 2 also receives the suspension operation completion signal input to the on-site operation panel 58a through the central control panel 58, raises the suspended body to a fixed position, moves to the workpiece suspension area 43b, and moves to the next workpiece Suspended It enters a standby of the eye.

The above baskets 50a, 50b, 50c
When the electrodeposition coating process is performed on the object stored in the first electrodeposition coating / post-processing device 31 or the second electrodeposition coating / post-processing device 36, the power is supplied to the object. The coating is applied. Therefore, for example, when the first electrodeposition coating / post-processing apparatus 31 is selected, as shown in FIG. 1, the basket 50 c is placed in the first electrodeposition tank 32, the basket 50 b is placed in the first filtrate washing tank 33, When 50a is in the first filtrate washing tank 34, only the basket 50c in the first electrodeposition tank is energized.
And the suspension 4 is provided at each of the suspension points 10a, 1
0b, 10c, the suspension point 10
The electricity supplied to the transfer device 2
a and 10b have no effect. Basket 50
The power is supplied to the suspension portion 10c of the suspension body 4 in which the current-carrying end 51b of the current-carrying tool 51a, which is provided above the outer edge of the first electrodeposition tank 32 and insulated from the tank 32, is strongly pressed into contact therewith. From the current carrying plate 51 to the basket 50c and the stored object to be processed through the suspending point 10c and the suspending tool 53. In response to a signal from the central control panel 58 that the electrodeposition coating process has been completed, the suspension body 4 is lifted, and the current-carrying end 51 of the current-carrying tool 51a, into which the current-carrying plate 51 of the suspension portion 10c can be pushed.
The energization is terminated by moving away from b. The energization is started in the reverse order.

The hanging tool carrier 44 and the hanging tool 44a are mainly intended to easily and safely carry out hanging and hanging of a large number of small workpieces 52 and various operations related to hanging and hanging. Things. Since there are many types of use procedures, only one of them will be described below. First, two receiving members 47 are provided on the upper surface of the box body 45 of the hanging tool carrier 44, and the first hanging frame receiving rod 48 is hung over the concave portion of the receiving material 47, and the object to be processed is already hung there. The frames 49 are hung one by one in the recesses, and then the second hanging frame receiving rods 48 are laid over the hanging frames 49 on which the objects to be processed are already hung in sequence. Full load. In this manner, the hanging tool carrier 44 on which the hanging tool 44a full of the workpiece is placed is moved to the hanging points 10a, 10b, and 10c of the hanging body 4 of the transport device 2 which stands by at the workpiece hanging area 43b. , And is suspended under the same procedure as that when the basket described above is used, so that the description is omitted here.

On the other hand, the procedure in the case of the suspension is as follows. After the processing, the processing object loaded on the processing object hanging tool 44a reaches the processing object suspension place 43a and stands by.
When the hanging tool carrier 44 is loaded immediately below and the completion of suspension preparation is input to the on-site operation panel 58a, the signal from the central control panel 58 causes the suspension 4 of the transporting device 2 to descend. The hanging tool 44a is placed again on the hanging tool carrier 44 together with the object to be processed in the same shape as before hanging. Next, when the suspender 53 is removed and a signal indicating the completion of the suspending operation is manually input to the on-site operation panel 58a, the transporting device 2 raises the suspending body 4 and again moves the suspending place 4
It returns to 3b and stands by. Then, the hanging tool carrier 44 full of the objects to be processed is moved to a place outside the equipment, and the processed objects are removed in the reverse order of the previous hanging operation. Conventionally, not only the hanging work but also the hanging work has been performed in the equipment.
With the use of these, the work can be performed at an appropriate place outside the equipment, so that the simplification and safety of the work are greatly improved. Also, in the equipment, the suspension 4
In the suspending / suspending operation of 4a, as in the case of the basket described above, since the suspended body is slightly lowered, the attaching / detaching of the suspending tool 53 becomes easy and safe. I have.

The suspension points 10a of the suspension 4 of the transfer device 2
10b and 10c form a large plane, and a large number of locking members 16 and locking rods 17 are arranged vertically and horizontally. Therefore, a plurality of hanging tools 53 are used for a single object from arbitrary plural points. Can be suspended. Therefore, even when the object to be processed is a large-sized / unusually shaped object 56, it can be easily suspended in a stable position that is most convenient for conveyance and processing. Further, the suspension body 4 can be further lowered from the fixed lower position by operating the hoisting / rewinding button on the field operation panel 58a, and then raised to return to the original lower fixed position again. Therefore, as shown in FIG. 12, FIG. 13, and FIG. 14, in the case of a large-sized / singular-shaped workpiece 56 which is difficult to carry in a state of being erected right under the suspension points 10a, 10b, 10c, etc. It is also possible to suspend the robot from a position lying on the floor or on the carrier table or on the conveyor for loading the workpiece. Of course, these objects can also be suspended by the reverse procedure of suspension. 12, 13, and 14.
FIG. 7 shows a procedure for suspending the large-sized / unusual-shaped object to be processed 56 from the posture of lying on the floor in accordance with the order.

As described above, the transfer device 4 has many means and methods for suspending and suspending the object to be processed. Types having different shapes and sizes up to large and even unique shapes, for example, small workpiece 52 and medium workpiece 57
The processing object such as the large-sized / unusual-shaped processing object 56 is transferred to a plurality of suspension points 10a, 10b,
10c can be easily suspended and suspended in combination. A specific example is shown in FIG.

A plurality of transfer devices 2 are suspended from the rail 8 in the electrodeposition coating equipment 22, and these transfer devices 2
Signals from various sensors arranged at necessary locations in the electrodeposition coating equipment 22 are sent to the central control panel 58, and the central control panel 58 receives this signal and, in accordance with its own automatic operation control program, controls each of the units. The operation is controlled by different automatic control signals from the central control panel 58 at the same time. Since a plurality of modes are prepared in the automatic operation control program of the central control panel 58 itself, the operation on the on-site operation panel 58a determines which program is to be used for which transport device 2 and which operation is to be performed. It is made possible to make a selection by button input. Therefore, the selection of the processing step and the processing time are transmitted to the central control panel 58 by the on-site operation panel 58a, and the processing can be easily selected according to the processing specifications for each transport device 2. As described above, the suspension preparation completion / suspension work completion / suspension preparation completion / suspension work completion signal is transmitted from the on-site operation panel 58a.
To be transmitted to the central control panel 58,
These operations can be performed without being restricted by the specified operation time.

[0032]

The advantages of the present invention include the following. (1) The transfer capacity per transfer device has been greatly improved by increasing the number of suspension points of the transfer device. This improvement has made it possible to significantly reduce the required number of transfer devices suspended in the equipment without reducing the processing capacity of the equipment. Since the required number of transfer devices suspended in the equipment is greatly reduced, conventional expensive inexpensive automatic operation control systems can be used for each transfer device without using expensive automatic operation control systems for transfer devices. Since it is possible to perform automatic operation in different modes, it is possible to perform automatic operation of selecting a processing step and a processing time according to processing specifications for each transfer device. Unlike the conventional equipment of the same type, it is possible to avoid increasing the packing volume for improving the transfer capacity, so the equipment area such as processing tanks and drying and baking furnaces is enlarged due to the enlargement of the equipment area. Equipment costs per processing capacity are no longer expensive. For the same reason, even in the case of a processing step requiring electric processing, an increase in the processing area per unit of processing due to energization is eliminated. Therefore, it is not necessary to increase the capacity of the rectifier or the power receiving equipment in order to improve the transfer capacity, and the cost of the electric equipment for electric processing is not increased. Due to the effects of the above items, the equipment cost per processing capacity is significantly lower than the conventional equipment of the same system as well as other equipment.

(2) The length of the suspension body is increased by increasing the number of suspension points of the suspension body of the transfer device, so that the suspension body can be suspended at a plurality of points at long intervals. Body stability has greatly improved. And further between the hoist and the suspension,
By providing a guide rod and a rocking member consisting of a guide rod for restraining the suspension from swinging and plane rotation during the entire stroke from the fixed position of the suspension to the fixed position of the suspension, the suspension and the suspension are provided. Since the posture of the processed object is always stable even during the running, ascent and descent operations, the object to be processed can be transported and processed regardless of its shape and size. It has become possible to operate safely and stably without any trouble inside. (3) Since the suspension of the transfer device is insulated from any other part of the transfer device and also between the plurality of suspension points of the suspension, each of the suspension units is suspended at the plurality of suspension points. And different electric treatments can be simultaneously performed on the objects to be treated.

(4) Since the transport device can move up and down a suspended body having a plurality of suspended portions forming a large surface, the following has become possible. When suspending an object to be suspended on a suspended body, the object to be treated can be suspended by directly transporting the object to beneath each suspension point using a carrier or a conveyor. The suspension work became easier and safer. The suspension work is the same as the suspension work. Even if the object to be processed has a large peculiar shape and an eccentricity, each of the suspension points of the suspension forms a large surface, so that it is possible to suspend these from arbitrary multiple points. I can do it. For this reason, the suspension work is facilitated, and the conveyance and processing in a stable posture can be performed. For a large number of small objects to be processed, prepare a hanging equipment carrier with hanging equipment on which these objects are hung beforehand at a place other than the equipment installation location. It is now possible to carry and process the hanging objects, which have been transported to just below the place, leaving the transporter of the object to be suspended, leaving the hanging equipment carrier. Since the suspension work can be significantly reduced, the work can be greatly simplified and made safer. The hanging and hanging work is the same as the hanging work. Also, the working space for hanging / suspending and hanging / suspending can be greatly reduced by this effect, so that the equipment area can be reduced correspondingly. It is easy to lower the suspended body from the lowered fixed position and return it to the original lowered fixed position again. Even in the case of an object, it is possible to suspend the object from lying down on the floor immediately below it, on a carrier table, or on a workpiece carrying conveyor, and in the reverse order. . Due to the effects of the above items (1), (2), a method for suspending / suspending an object to be processed having any kind of shape and size is provided. -It has become possible to easily combine a peculiarly shaped workpiece and a large number of small workpieces into the same transporting device, suspend them, and transport and process them. As described above, the effect according to the present invention is a solution which has solved and satisfied all the disadvantages of the problems to be solved by the invention and the functions required by the conventional technology, and is an invention excellent in industrial use. .

[Brief description of the drawings]

FIG. 1 is a front view of a transport device according to an embodiment of the present invention.

FIG. 2 is a right side view of the transfer device according to the embodiment of the present invention.

FIG. 3 is a plan view of the transfer device according to the embodiment of the present invention.

FIG. 4 is a partially enlarged perspective view of a suspension body of the transport device according to the embodiment of the present invention.

FIG. 5 is a schematic plan view of the electrodeposition equipment of the embodiment of the present invention.

FIG. 6 is a processing status diagram in which the steps of the pre-processing apparatus and the first electrodeposition coating / post-processing apparatus are not required, and the processing steps of the pre-processing apparatus and the first electrodeposition coating / post-processing apparatus are not required in the embodiment of the present invention.

FIG. 7 is a processing status diagram in which the steps of the first electrodeposition coating / post-processing apparatus are unnecessary and the processing steps of the pre-processing apparatus and the second electrodeposition coating / post-processing apparatus are selected in the embodiment of the present invention.

FIG. 8 is a processing status diagram in which the steps of the first electrodeposition coating / post-processing apparatus and the steps of the second electrodeposition coating / post-processing apparatus are unnecessary and the processing steps of the pre-processing apparatus are selected in the embodiment of the present invention.

FIG. 9 is a front view of the embodiment of the present invention, in which the suspended body is at the lowered fixed position and the object to be processed is prepared for suspension by the hanging tool carrier.

FIG. 10 is a right side view of the embodiment of the present invention, in which the suspended body is at the lowered fixed position and the object to be processed is prepared for suspension by the hanging tool carrier.

FIG. 11 is a suspended state diagram of the embodiment of the present invention in which the suspended body is at the ascending fixed position and the object to be processed is suspended.

FIG. 12 is a view showing a state in which the suspension of the transfer device is further lowered from the lowered fixed position in the embodiment of the present invention, and the large-sized / unusual-shaped workpiece to be laid on the floor is hung by a suspension.

13 is a suspended state diagram in which the state of the previous figure and FIG. 12 is shifted to the next state, and the suspended body of the transfer device is returned to the fixed position again, and the workpiece having the shape / singular shape is suspended at one point first.

FIG. 14 shows a state in which the state of FIG. 13 is shifted from the state shown in FIG. 13 to the next state, and the number of hanging points is increased in order to stabilize the hanging posture of a large-sized / singular-shaped workpiece suspended at one point. FIG.

[Explanation of symbols]

 Reference Signs List 2 Conveying device 3 Hoisting machine 4 Suspended body 5 Swinging tool 6 Running machine 6a Running motor 7 Beam 8 Rail 9a Hoisting motor 9b Chain 10a Hanging point 10b Hanging point 10c Hanging point 11 Outer frame 12a Auxiliary Frame 12b Auxiliary frame 13 Reinforcement frame 14 Mounting material 15 Locking shaft 16 Locking material 17 Locking rod 19 Guide rod 20 Mounting plate 21 Guide rod 21a Receptacle 22 Electrodeposition equipment 23 Pretreatment device 24 Degreasing tank 25 First rinsing Tank 26 Surface conditioning tank 27 Chemical conversion coating tank 28 Second water washing tank 29 Pure water washing tank 30 Sauce cutting water receiver 31 First electrodeposition coating / post-treatment device 32 First electrodeposition tank 33 First filtrate washing tank 34 First two-filtration water rinsing tank 35 Sauce cutting water receiver 36 Second electrodeposition coating / post-treatment device 37 Second electrodeposition tank 38 Second filtrate washing tank 39 Second two-filtration water washing tank 40 Sagging Water receiving 41 Dry baking process Apparatus 42 Dry baking oven 42a Hot air generator 42b Hot air circulation fan 43a Workpiece suspension outside field 43b Workpiece suspension area 44 Hanging equipment carrier 44a Hanging equipment 45 Box body 46 Wheel 47 Receiving material 47a Hanging part 48 Hanging Frame receiving rod 49 Hanging frame 49a Hanging portion 50a Basket 50b Basket 50c Basket 51 Power supply plate 51a Power supply tool 51b Power supply end 51c Power supply cable 52 Small workpiece 53 Suspension tool 55 Insulation material 55a Insulation material 55b Insulation material 55c Insulation material 56 Large / unusual shaped objects 57 Medium-sized objects 58 Central control panel 58a On-site operation panel

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Kosaka 6-1, Nanyo-dori, Minami-ku, Nagoya-shi, Aichi Prefecture Tokai Plant Engineering Co., Ltd. (72) Inventor Hiroshi Ota 15-2, Sanbonmatsu, Rokujiji, Okazaki-shi, Aichi Prefecture

Claims (10)

[Claims] A rail is provided along each processing apparatus above a surface processing equipment provided with each processing apparatus in the order of processes, and means for suspending the rail and moving the workpiece so as to be able to move up and down. In the transporting method, the object to be processed or the object to be processed is accommodated in each of a plurality of suspension points forming a large surface of a suspension body suspended by a chain or a rope of a hoist constituting a transporting device. A transport means in which a basket or the like is suspended or fixed so that each object to be processed can be in different processing steps at the same time, a guide rod and a guide rod on a hoisting machine and a suspension body of a transport device. Surface treatment characterized in that the suspension is combined with anti-swing means for restraining the suspension from swinging or rotating during the entire stroke from the fixed position to the fixed position of the suspension and preventing the suspension from swinging or rotating. For transporting workpieces. 2. An object to be processed or an object to be suspended or fixed to a plurality of suspension points, insulating the suspension from the transfer device and also between a plurality of suspension points of the suspension. 2. The method according to claim 1, wherein the baskets storing the workpieces are electrically independent of each other, so that they can be in different electrical processing steps at the same time. 3. A combination of various sensors and an automatic operation control device, selection of an arbitrary processing step that passes through an unnecessary processing step, and arbitrary time in the selected processing step in accordance with the processing specification of an object to be processed. 2. The method according to claim 1, further comprising a control means for selecting a processing time by stopping the processing. 4. An object to be processed is not only suspended of a type having a similar size and shape but also of a different shape ranging from a small size to a large size or even a unique shape. 2. The object for surface treatment according to claim 1, further comprising a means for selecting an object to be suspended, which can be arbitrarily selected and combined with each of a plurality of suspension points, and can be suspended, transported and processed. Processed material transport method. 5. A suspension having a plurality of suspension points forming a large surface is suspended by a chain or a rope of a hoist, and a transfer device provided with a traveling machine or towed by a towing machine is suspended on a rail. And a workpiece or a basket containing the workpiece is suspended or fixed at each of a plurality of suspension points, and can be moved up and down by a hoisting machine and moved by a traveling machine or a towing machine. And a processing device for surface treatment, wherein different treatments can be performed simultaneously on these suspended or stored objects. 6. A swinging device comprising a guide rod and a guide rod fitted in a proper position between the hoisting machine and the suspension so as to restrain the suspension during the entire stroke from the fixed position to the fixed position. The surface treatment object transporting device according to claim 5 provided. 7. An end of the guide rod has a socket for facilitating catching the end of the guide rod, and the suspension body further descends from a lowered fixed position, and the guide rod comes off from the guide rod. 7. The apparatus according to claim 6, wherein the guide rod receiving portion catches the end of the guide rod when returning upward and returns to the original fitting relationship. . 8. A hoisting device comprising a guide plate or a combination of a guide frame such as a guide roller and a guide roller which forms a plane so as to restrain the entire stroke of the suspension from a fixed position to a fixed position. The apparatus according to claim 5, wherein the apparatus and the suspension are provided at appropriate positions of the machine and the suspension. 9. An object to be processed or an object to be suspended or fixed to a plurality of suspension points by insulating the suspension from the transfer device and also between the plurality of suspension points of the suspension body. 6. The apparatus according to claim 5, wherein the baskets and the like are electrically independent of each other so that they can be in different electric processing steps at the same time. 10. The object to be processed is placed on a dedicated carrier while being hung, and is movable. The object is moved directly below the suspension of the transfer device and connected to the suspension. By leaving the special transport vehicle by ascending, suspending the suspended object together with the workpiece,
6. A surface treatment object according to claim 5, wherein the object to be processed can be detached from the suspension body in the reverse order, and the object to be processed can be used. Processing object transport device.