JPH0343242Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is applicable to an electrolytic surface treatment line for aluminum shapes, etc., in which various materials to be treated are hung vertically and processed, particularly preferably in a U-shape (U-shape In the electrolytic surface treatment line (where the line is folded back),
The present invention relates to an applicable transportation frame storage device.

Background of the Technology In recent years, for example, electrolytic surface treatment lines for aluminum profiles have been used, in which each treatment station is arranged successively, and the treatment lines are turned back in a "U" shape midway through the process.

Regarding processing lines with vertical suspension,
As an example of a preferred application, a typical "U"-shaped configuration of a processing line for aluminum profiles constructed including a storage device according to the present invention is shown in FIG. In FIG. 1, the reference numeral 10 is a storage device for the transport frame, the reference numeral 1 is a racking station for horizontally attaching the material to be processed to the transport frame 11, and the reference numeral 2 is a racking station for attaching the material to be processed horizontally to the transport frame 11. Standing stand for raising the transport frame and transferring the transport frame vertically to the processing line (Patent application No. 59-233302)
3a is the outward path of the processing line, 3b is the return path of the processing line, 4 is the unracking stockyard, and 5 is the overturning table for rotating the vertically suspended workpiece into a horizontal state. , code 6
1 and 2 respectively show an unracking station for removing the material to be processed from the transport frame. Also,
Reference numeral 7 indicates a moving path for moving the conveyance frame from the outward path 3a to the return path 3b of the processing line, and reference numeral 8 indicates the return path 3.
A moving path for returning from b to the outgoing path 3a for reprocessing. Reference numeral 9 indicates a transport frame movement path for returning the transport frame from which the material to be processed has been removed to the storage device 10. Furthermore, the symbol A indicates a line for supplying the processed material, and the symbol B indicates a line for carrying out the processed material (product),
As before, traveling cranes are provided on the outbound route 3a and the inbound route 3b for transferring the transport frame, dipping the material to be treated in the treatment tank, taking it out, and the like.

Here, the processing stations constituting the outgoing route 3a and the returning route 3b include processing stations for water washing, degreasing, caustic treatment, anodizing treatment, electrolytic coloring or resin electrodeposition treatment, baking treatment, etc. Processing stations such as water washing and hot water washing are also interposed between the stations as necessary. Further, in the transport frame moving path 9, devices for cleaning the transport frame are combined at appropriate positions above and below, and the storage device 1
The conveyance frame after cleaning is supplied to the conveyance frame 0. The structure of this type of U-shaped processing line is disclosed in Japanese Patent Laid-Open No. 55-38903 and is well known.

The present inventor has developed several types of U-shaped electrical surface treatment lines in which racking jigs are installed in advance so that the workpieces can be hung vertically at preferred intervals according to the width of the workpiece, etc. Different transport frames were prepared, and after the processing was completed, the frames were returned to their original order using an elevating crane in the racking stockyard.The transport frames returned to the starting end of the outgoing route were separated by type and placed at the starting end of the outgoing route. Store it in a storage device,
On the other hand, the automation of the line can be made more advanced by sequentially selecting and transporting the desired type of transport frame from the storage device and supplying it to the racking station for attaching the workpiece in front. I came up with this idea.

Problems with the Prior Art Conventionally, the storage device 1 of the present invention was used in such an electrolytic surface treatment line, for example, the treatment line shown in FIG.
There is no special device corresponding to 0, and to put it simply, it is simply a combination of belt conveyors that serve as a temporary reservoir for re-supplying the transport frames returned from the transport frame movement path 9 to the processing line in that order. There was no more than a stockyard intervening. That is, since a belt conveyor was also provided on the lifting device for loading and unloading transport frames in the stockyard, the lifting device became complicated and required a large space for its operation. Furthermore, since the lifting and lowering operations and the loading and unloading operations could not be performed independently or separately, the entire operation required a long time.

Purpose of the invention In order to eliminate the above-mentioned drawbacks, the present invention attempts to provide an elevating device that has only an elevating and lowering function, and also has separate mechanical parts that perform loading and unloading functions inside the storage shelf side. It is something to do.

As a result, preparations for loading and unloading are carried out in accordance with the lifting and lowering operations, and loading and unloading can proceed in parallel at the same time, reducing waiting time.
Efficiency can be improved, and equipment space can also be reduced.

Structure of the invention The present invention stores various transport frames used for vertically suspending and transporting materials to be processed along a processing line, and selects one of the various transport frames that are stored. A storage device for supplying the desired type of transport frame to the processing line, comprising: a) shelves arranged in multiple stages to store the various transport frames by type; and b) a transport frame. Separate elevating means comprising a pair of elevating and lowering platforms disposed near both sides of the frame shelf so as to support both ends of the transport frame, respectively, and which are capable of elevating and lowering, c. A carrying-in mechanism is arranged symmetrically on various shelves and is supported by a lifting means to carry the carrying frame to a predetermined shelf, and a carrying-out mechanism is arranged to carry out the carrying frame from a desired shelf to the lifting means. and d. The loading mechanism is provided near the tip of a slide member that can be driven forward and backward with respect to the elevation surface of the transport frame by the elevation means, and when the slide member is advanced toward the elevation surface, the elevation means receives and supports the conveyance frame lowered by the lift means, and delivers the conveyance frame to the conveyance means arranged on each shelf to convey the conveyance frame with the slide member retracted from the elevating means. e. The unloading mechanism is provided with a slide member that can be driven forward and backward with respect to the elevating surface of the transport frame by the elevating means, and is provided near the tip of the slide member, and the e.g. a pedestal for receiving the transport frame from the transport means in a state in which the slide member is retracted from the base, and for delivering the transport frame to the elevating means which is raised with the slide member being advanced toward the elevating surface; f. The conveying means has a self-feeding type or fixed type conveyor for moving the conveyance frame carried into the shelf to a predetermined position on the shelf, and the conveyor frame is moved by the conveyor. This is a transport frame storage device for an electrolytic surface treatment line, characterized in that the transport frame is provided with a stopper for stopping the transport frame at a predetermined position.

A preferred embodiment of the storage device according to the present invention will be described below, but the present invention is not limited to the "U"-shaped processing line shown in FIG. It goes without saying that the present invention is not limited to the arrangement of the processing stations constituting the return path 3b, and can be modified accordingly and applied to various processing lines.

FIG. 2 shows an elevational view of the storage device 10 as viewed in the direction of the arrow V1 shown in FIG. 1, and shows the relative positional relationship with the racking station 1 and the stand 2. This storage device 10 is configured with shelves 20 arranged in four stages, but the type of transport frame depending on the mounting interval of racking jigs, or two systems that can be energized, such as a continuous system or a center division system, are used. The number of stages can be set as appropriate depending on the type of conveyance frame itself, such as whether it is a continuous type or the like.

In other words, several types of transport frames are prepared in advance depending on the type of material to be treated that may be treated in the electrolytic treatment process, and by increasing the number of types, it is possible to increase the diversity of treatment in the process. can be effectively increased.

For example, it is possible to prepare multiple types of transport frames with racking jigs pre-arranged at pitches of 40, 80, 120, 160, 240 mm, etc., depending on the greatest common divisor of the width dimensions of the material to be processed. It is recommended to prepare lucking jigs with different latching strengths depending on the weight of the material to be processed, or to arrange lucking jigs in one row in the longitudinal direction of the transport frame, or to arrange them in two or more rows and staggered relative to each other. Also, should the transport frame itself be a series type or a split power feeding system as disclosed in Japanese Patent Application Laid-open No. 60-135599, or even a configuration similar to the above-mentioned combinations inside? Several types of transport frames with appropriate structures and functions are prepared depending on the surface treatment itself and various production problems.

The prepared transport frames are stored in a storage device according to their type, and the most suitable transport frame is sequentially selected and carried out according to the type of material to be processed, and the U-shaped electrolytic surface as described above is The desired surface treatment is performed on the processing line. In addition, in order to repair the racking jig of the transport frame, an auxiliary shelf 21 consisting of a fixed roller floor etc. is provided on the carry-in side, and the auxiliary shelf 21
It can also be made available for repair on-site or for transport to another location for repair. There is also a loading station 1 which receives the transport frame sent to the storage device 10 and moves it to a position corresponding to a predetermined shelf. Adjacent to the opposite end of the shelf 20 is a lifting means 40 on the ejection side for supplying to the shelf 20. In addition, this storage device 1
In the case of this diagram, 0 is installed independently on the ground, but due to conflicts with surrounding factory layouts, etc.
It can be attached to an existing factory, or it can be installed underground depending on the type of peripheral equipment such as erection equipment.
Various installation methods can be adopted as appropriate, such as mounting it on top of other devices. Further, the unloading side elevating means 40 is not necessarily necessary when the structure of the haratsuking station 1 is such that the transport frame is taken over by a traveling crane vehicle system having an elevating means.

FIG. 3 shows a top plan view of the storage device 10 of FIG. 2. As shown in FIG. As shown in FIGS. 2 and 3, the elevating means 30 and 40 here include a pair of elevating guides 31 and 41 disposed at positions corresponding to the vicinity of the ends of the transport frame 11, and these elevating guides. 31 and 41 and are configured to have lifting tables 32 and 42 that are driven up and down. The elevating tables 32 and 42 basically have the same structure, and in this case, the elevating table 32 is provided on the carry-in side in response to an example in which the conveying frame is conveyed from the side, and each of the conveying frames 11 Support arm 3 for supporting
3 and 43. Here, the support arms 33 are arms having a groove for receiving the conveyance frame 11, and these support arms 33 are arranged in a parallel state so as to protrude toward the shelf 20. It can be raised and lowered by a chain conveyor connected to. On the other hand, the support arms 43 are arranged so as to protrude toward each other in a direction parallel to the transport frame 11, as shown in FIG. 3, and are provided at each end of the transport frame 11, as shown in FIG. It is shaped to support the pins 11a on both sides. The shelf 20 is composed of a frame 20a as shown in FIG.
A conveying means 50 for the conveying frame 11 is arranged at a position that does not interfere with the elevating means 30 and 40 between the shelves.
1 is now supported. Here, shelf 20
The conveyance means 50 is constituted by a pair of conveyors 51 arranged on both sides of the conveyor 51, respectively. As shown in detail in FIG. 5, these conveyors 51 have an endless roller conveyor structure that is wound between a pair of sprockets 52 arranged near both ends of the shelf 20. This drive is rotatably driven by a suitable drive device, such as an electric motor, which is operatively connected to one of the sprockets 52, although it is not shown. Here, it is rotated clockwise in FIG. 5 so as to move the shelf 20 from the carry-in side (lifting table 30 side) to the carrying-out side (lifting table 40 side). FIG. 6 shows another conveyance means 100, which is fixed to a fixed roller row 101 and a drive belt 102 for moving a conveyance frame 11 placed thereon. The transport frame 11 is propelled by a pressing member 103. In either configuration, two stoppers 53 and 54 are provided for stopping the moved transport frame 11 at a predetermined position on the unloading side, and a suitable A conveyance frame passage sensor 56 is provided, such as a limit switch displacement sensor or an optical sensor.The stoppers 53 and 54 may be constructed using individual lifting cylinders (as shown) or a single lifting cylinder having a link mechanism. The stopper 53 is used to move the transport frame 11 from the shelf 20 as described later.
When the transport frame 11 is to be carried out, the engagement with the transport frame 11 is released, and during this time, the stopper 54 prevents the subsequent transport frame 11 placed laterally from moving in the same manner. There is. Also,
The stopper 55 is also a stopper (anti-back) provided on the input side of the conveyor 51, and a conveyance frame passage sensor 57 similar to that described above is provided therebetween. This is a one-way stopper that allows the transport frame 11 to move in the carry-in direction, but prevents movement in the opposite direction, thereby preventing the transport frame 11 from falling.

As shown in FIGS. 3 and 7, each shelf 20 is further provided with elevating means 30 and 40, and a carry-in mechanism 60 and a carry-out mechanism 7 for the conveyance frame 11 at positions that do not interfere with the conveyance means 50 (or 100).
0 is deployed. The carry-in mechanism 60 and the carry-out mechanism 70 are provided near each end of the transport frame 11 and form a pair. The carry-in mechanism 60 and the carry-out mechanism 70 basically have the same structure, and as shown in FIG.
1. Slide members 62 and 72 are attached to these guide rails 61 and 71, respectively, and are movable back and forth in the direction along the conveyor 51. The slide members 62 and 72 have pedestals 6 at their tips for supporting the transport frame 11.
3 and 73 are attached, and the pedestals 63 and 73 are provided with flanges 64 and 74, respectively, to prevent the transport frame 11 from falling.
Furthermore, the unloading side slide member 72 is provided with a one-way stopper (anti-back) 7 which is clamped together with the flange 74 at the tip of the slide member 72 to prevent the transport frame 11 from swaying.
8 is installed horizontally. These slide members 62 and 72 are mounted on the transport frame 11 by placing the support stands 63 and 73 opposite to the elevating surfaces of the elevating tables 32 and 42, respectively.
A position where the frame 11 can be received from the lifting platform 32 or delivered to the lifting platform 42, and a position where the frame 11 can be retracted sufficiently inward from the shelf 20 from the position to deliver the transport frame 11 to the transport means 50, or the transport frame 11 can be delivered to the transport means 50. It is possible to reciprocate between the transport frame 50 and the position where the transport frame 11 is received. The slide members 62 and 72 are driven by a sprocket 66 that meshes with chains 65 and 75 stretched over the respective slide members.
and 76, for example, an electric motor 6 capable of forward and reverse rotation.
7 and 77 to rotate and reciprocate.

FIG. 8 shows an elevational view of the storage device 10 seen in the direction of arrow V2 in FIG. The support arm 33 of the lifting platform 32
It is shown supported on the top. This transport frame movement path 9 is constructed by two transport frames 11 as an optimum example.
A hook opening/closing holding/transfer device 9a that supports the pins 11a at both ends of the hook and transports it in two movements along the transverse rail.
However, it is also possible to use a mobile crane type vehicle having a means for elevating and lowering, and the transfer position can be set at any level in the vertical direction depending on the connection with peripheral equipment, and this is a part of the present invention. I won't go into details because it does not constitute a

Description of Operation By providing the storage device 10 according to the present invention having such a configuration, supply control of the transport frame 11 to the processing line is performed as follows. That is, each shelf 20 stores in advance transport frames 11 for each type of material to be processed W, in which racking jigs are set either exclusively or at various mounting intervals.
Furthermore, the transport frames 11 that have been used and are later returned along the transport frame moving path 9 are separated and moved into predetermined shelves 20.

For this purpose, first, the transport frame 11 is transported along the transport frame movement path 9 to a predetermined position and is on standby.
Meanwhile, the lifting tables 32 and 32 are raised, and the support arms 33 and 33 support and receive the vicinity of both ends of the transport frame 11. After that, the transport frame movement path 9
The support by the transfer device 9a for the conveyance frame 11 along the line is released, and it is returned to its original position. Further, the lifting tables 32 and 32 are moved and lowered to a position corresponding to a predetermined shelf 20 in which the transport frame 11 to be supported is to be stored. On the other hand, when lowering the lifting tables 32, the slide members 62 and 62 are moved to the protruding position before the lifting tables 32 and 32 are lowered.
The transport frame 11 that has been lowered while being supported by the slide members 62 and 62 is
3. Support on top. As the elevating tables 32 and 32 further descend, the transport frame 11 is supported only on the pedestals 63 and 63. After reaching this state, slide members 62 and 62 are
Retract inward to 0. In this retracted position, the transport frame 11 is operated by a transport frame passage sensor 57 using a limit switch, a displacement sensor, a light sensor, etc.
is detected, thereby causing the transport conveyor 51 or the drive belt 102 to operate, and the transport conveyor 51
It is delivered to the top or roller row 101 and moved to the discharge side of the shelf 20 by this conveyor or the like. If there is already a conveyance frame 11 on this shelf 20, this is stopped by the stoppers 53 and 54, so that it is stopped in line with those conveyance frames 11.
If there is no transport frame 11, this moved transport frame 1
1 to a conveyance frame passage sensor 5 such as a limit switch.
6 detects this, the stopper 53 is raised, and the stopper 54 is kept down, and after the transport frame 11 comes into contact with the stopper 53, the transport frame passage sensor detects this and raises the stopper 54. In this way, each transport frame 11 is supported on the transport conveyor 51 of the predetermined shelf 20 and is placed on standby.

On the other hand, the transport frame 11 is unloaded from the storage device 10 on the shelf 20 where the desired transport frame 11 is stored.
A predetermined transport frame 11 is carried out from there and supplied to the racking station 1.

For this purpose, first, the stopper 53 of the predetermined shelf 20 is
Release the slide members 72 and the pedestals 7 of 72.
With one transport frame 11 supported on 3 and 73, it is projected from the shelf 20 to a position on the carry-out side. Next, the lifting tables 42 and 42 are raised to receive the transport frame 11 onto the support arms 43 and 43, and then the slide members 72 and 72 are returned to their original positions. After that, the lifting platforms 42 and 4
2 is lowered, thereby supplying the supporting frame 11 to the racking station 1 and the upright stand 2. This racking station 1
Delivery to the address can be easily performed using the same method as described above or other methods.

Such selection control of the transport frame 11 is performed, for example.
By equipping a processing line with a CPU and using a transport frame with an identification mark, it is possible to control input and output all at once using this CPU.

Of course, the predetermined conveyance frame 11 can be moved by any other method.
It is also possible to select and operate the storage device 10.

The preferred embodiment of the present invention has been described above, in which the present invention is applied to a U-shaped line, but it is of course applicable to conventional straight lines.

Effects of the invention (1) By creating a storage device with multiple shelves that combine a loading/unloading mechanism with sliding members and a transport conveyor mechanism, loading and unloading of transport frames can be carried out safely and reliably. In addition, the front and rear lifting platform devices can be made simple and space-saving. Further, since the elevating means for storage and the loading/unloading mechanism can be operated simultaneously, the operating time can be shortened.

(2) It becomes possible to remotely centrally control the transport of the transport frame in the electrolytic surface treatment line, further promoting automation of the line, and having an extremely large industrial effect.

That is, since many types of transport frames are prepared in advance according to the marking materials to be processed in the surface treatment line,
By simply selecting the most suitable transport frame according to the order of the materials to be processed that are introduced from time to time, the work of replacing and installing racking jigs is no longer required, and the circulation path of the surface treatment line can be formed efficiently. Become.

In addition, since it is only necessary to prepare a transport frame according to the frequency of use and the weight of the material to be processed, there is no need to prepare a rucking jig with high rucking strength, and it is also possible to use a simple rucking jig.
Secondary effects such as reducing equipment costs can also be achieved.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view showing the configuration of a typical "U"-shaped processing line including a transport frame storage device according to the present invention. FIG. 2 is an elevation view seen in the direction of arrow V1 in FIG. 1, showing an embodiment of the storage device which is a feature of the present invention. FIG. 3 is a plan view of the storage device shown in FIG. 2. FIG. 4 is a partial elevational view of the storage device to show the platform and its support arm;
FIG. 5 is an elevational view showing the conveyor. 6th
The figure is an elevational view similar to FIG. 5 to show another conveyance means. FIG. 7 is an elevational view showing the loading and unloading mechanism. FIG. 8 is an elevational view showing the storage device together with the transport frame moving path as seen in the direction of arrow V2 in FIG. 1. 1... Racking station, 2... Standing platform, 3a... Outward route of the processing line, 3b... Return route of the processing line, 4... Unrucking stockyard, 5... Tipping table, 6... Unrucking Station, 7, 8...Movement path, 9...Transportation frame movement path, 10...Storage device, 11...Transportation frame, 20...
...Shelf, 20a...Frame body, 21...Auxiliary frame, 30,
40... Lifting means, 31, 41... Lifting guide,
32, 42... Lifting platform, 33, 43... Support arm, 50... Conveying means, 51... Conveyor,
52... Sprocket, 53, 54... Stopper, 56, 57... Transport frame passage sensor, 60...
... Carrying mechanism, 61, 71 ... Guide rail, 6
2, 72...Slide member, 63, 73...Base, 66...Sprocket, 67, 77...Electric motor, 78...One-way stopper, 70...Export mechanism, 100...Transporting means, 101... ... Roller row, 102 ... Drive belt, 103 ... Pressing member.

Claims (1)

[Claim for Utility Model Registration] Various transport frames used for vertically suspending the material to be processed and transporting it along the processing line are stored by type, and which of the various transport frames stored is A storage device for supplying the desired type of transport frame to the processing line, comprising: a) shelves arranged in multiple stages to store the various transport frames by type; and b) a transport frame. Separate elevating means comprising a pair of elevating and lowering platforms disposed near both sides of the frame shelf so as to support both ends of the transport frame, respectively, and which are capable of elevating and lowering, c. A carry-in mechanism is disposed symmetrically on each shelf and carries a transport frame supported by a lifting means to a predetermined shelf, and a carry-out mechanism is arranged to transport the transport frame from a desired shelf to the lift means. and d. The carrying mechanism includes a slide member that can be driven forward and backward with respect to the elevation surface of the transport frame by an elevation means, and a state in which the slide member is provided near the tip of the slide member, and the slide member is advanced toward the elevation surface. a conveyance means configured to receive and support the conveyance frame lowered by the elevating means at the time of the movement, and to convey the conveyance frame disposed on each shelf with the slide member retracted from the elevating surface; A cradle for transferring the transport frame is provided; e. The unloading mechanism is provided with a slide member that can be driven forward and backward with respect to the elevation surface of the transport frame by an elevating means, and a slide member provided near the tip of the slide member. receiving the transport frame from the transport means with the slide member retracted from the elevating surface, and delivering the transport frame to the elevating means which is raised with the slide member being advanced toward the elevating surface. (f) The conveyance means has a self-feeding or fixed type conveyor for moving the conveyance frame carried onto the shelf to a predetermined position on the shelf, and 1. A transport frame storage device for an electrolytic surface treatment line, characterized in that a stopper is provided to stop the transport frame moved by a transport conveyor at a predetermined position.