JP2000335724A - Truck carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a carrying device from being non-carryable in the trouble of an engagement pin by providing a means for laying an optional engagement pin for connecting a shuttle shift truck to be stepping fed to a drive frame into a non-connected state, and feeding the drive frame for a plurality of pitches skipping the non-connected truck. SOLUTION: When an engagement pin (c) is broken in the pitch feed of a truck 20 in a position C to the following position D, and the connection of the truck 20 to a drive frame 10 cannot be separated, the broken engagement pin (c) is laid in a non-connected state in the position D to forcedly separate the truck 20 from the drive frame 10. Thereafter, the drive frame 10 is retreated, and the unusableness of the engagement pin (c) is outputted to a drive frame control device. According to this, in the drive frame control device, 2-pitch feed is automatically selected instead of 1-pitch feed, the drive frame 11 is operated to transfer the truck 20 for 2 pitches and send it the position D. An engagement pin (b) is released there, and the drive frame 10 is retreated for 2 pitches.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bogie transporting apparatus in which coils and the like are loaded on a shuttle shift bogie, and the loaded products are stored in front of the bogie together with the bogie so as to absorb an imbalance in the processing capacity of upstream and downstream processes.

[0002]

2. Description of the Related Art Conventionally, as a transfer device for a coil or the like, a method of directly loading and conveying a coil on a conveyor chain, or a method of directly pulling a truck loaded with a coil by a chain has been generally used. Both systems have a fatal drawback that when the coil is stagnant at the end of the transfer device, the operation becomes inoperable and the upstream equipment must be stopped. There is also a problem that a large driving force is required to transfer a large number of coils at the same time.

[0003] Therefore, a drive frame is provided on the transfer path, which is stepped by a constant pitch, and is configured to be able to reciprocate simultaneously in the transfer direction by the pitch described above. A shuttle shift transport device is used in which a pin is engaged with an engaging portion provided on each truck to advance the truck one pitch at a time and transport the coils to the end of the transfer device by storage.

FIG. 4 is an explanatory view showing the operation of the conventional shuttle shift transport device, and FIGS. 4 (a) to 4 (c) show steps of stepping by one pitch. FIG. 4A shows a state in which the carriage 20 is placed on the stepping drive frame 10, the drive frame 10 and the carriage 20 are connected with the engaging pins a, and the coil 30 is received and placed on the carriage 10 at the receiving position A. It shows the state where it was placed. The drive frame 10 is moved forward by one pitch in the direction of arrow 12 to move the coil 30 to the position B as shown in FIG. Next, the engaging pin a is removed, the carriage 20 and the drive frame 10 are separated, and the drive frame 10 is pulled back in the arrow 13 direction. As shown in FIG. 4C, the coil 30 and the carriage 20 remain at the position B, and the drive frame 10 returns to the original position. Next, the carriage 20 and the drive frame 10
Is engaged with the engagement pin b, and the drive frame 10 is
When the carriage 20 is moved in four directions, the carriage 20 moves to the position C. When the same operation is repeated below, FIG.
, The coil 30 and the carriage 20 advance to the payout position Z.

[0005] In this manner, the bogie is moved to the payout position by sequentially operating all the engagement pins a to z from the receiving position to the payout position. In such a shuttle shift transport device, if any one of the engagement pins a to z fails and the carriage 20 and the drive frame 10 cannot be separated, the entire transport line is brought down. There was a problem. Especially when the number of receiving positions and paying-out positions of the transport line cannot be designed to be small due to restrictions on the device layout, the number of engaging pins becomes enormous, so the frequency of line stoppage due to failure of the engaging pins is high. Become.

[0006] In general, an engagement pin for connecting the carriage and the drive frame is detachably operated by using an actuator. The operation types of the engagement pin include a lifting type, a rotation type, and the like.However, when the actuator for operating the engagement pin fails, a supply of the actuator working medium is insufficient, or a mechanical failure of the engagement pin body occurs. There is a concern that repairs will take a long time and will directly lead to line stoppage. In particular, in the hot-rolled coil conveying device, there is a bad condition such as running out of oil due to radiant heat from the coil and deformation due to thermal expansion, so that the failure probability of the engaging pin also increases.

[0007]

DISCLOSURE OF THE INVENTION The present invention provides a technique for preventing a transfer failure in a shuttle shift bogie transporting device that reciprocates one pitch at a time when an engaging pin of a drive frame is defective. The purpose is to do.

In a shuttle shift bogie transporting system of a type in which a bogie and a drive frame are connected and towed by an engaging pin or the like, if any one of a plurality of engaging pins fails, the line stops immediately, and There was a problem that the joint pin had to be repaired. In order to solve this problem, the present invention eliminates the need for repair work at that time by detaching the engaging pin from the outside without relying on the force of the actuator even if the engaging pin fails, The purpose is to provide a device that enables continuous operation.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a shuttle shift bogie transporting device which reciprocates one pitch at a time, and has means for disengaging any engaging pin connecting the bogie and the drive frame. And a drive frame control device for feeding the drive frame at a plurality of pitches over the trolley.

[0010] The arbitrary engaging pin is, for example, an engaging pin or the like which has malfunctioned, and is forcibly brought into a disconnected state. As means for forcibly disengaging the engagement pin, a cylinder or the like for releasing the engagement by applying a forcing force to the engagement pin may be used. In some cases, a manual device for setting the engagement and release states may be used. On the other hand, the drive frame is provided with a function capable of selecting an arbitrary position and feeding a plurality of pitches. In addition, the number of the engagement pin in the disconnected state is input to the computer. The drive frame control device performs control of jumping over the carriage and feeding the drive frame at a plurality of pitches based on this information. As a result, it is possible to feed a plurality of pitches with the drive frame beyond the part of the bogie where the engaging pins are uncoupled, and to prevent the bogie transport device from stopping even if a part of the engaging pins becomes defective. be able to.

According to a second aspect of the present invention, there is provided the carriage transporting device, wherein the means for disengaging the engagement pin comprises a pressure release valve and a manual lever. That is, when one of the engagement pins becomes defective, the operation of detaching the engagement pin from the outside is enabled without relying on the force of the actuator. The shuttle shift bogie transporting device to which the present invention is applied is provided with, for example, 19 engaging pins, and it is difficult to operate all of them without any problem for a long period of time. It is possible to avoid a line stop due to a failure.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 5 shows the case where the drive frame 10 is moved forward and backward by one pitch (p) from the position A to the position B,
It is explanatory drawing in the case of moving forward and backward by two pitches (2p) from A position to C position.

FIGS. 2 and 3 are explanatory views showing the operation of the embodiment. As shown in FIG. 2A, the carriage at the position C is
As shown in FIG. 2B, when the pitch is fed to the next position D, the engaging pin c fails, and the bogie 20 and the drive frame 10
The operation of the present invention will be described for the case where the connection cannot be separated. In the figure, a cross mark below the engagement pin c indicates a failure.

In the conventional apparatus, in this case, all the transfer lines must be stopped, the carriage 20 at the position D in FIG. 2B must be removed by some means, and then the engagement pin c must be repaired or replaced. .

In the present invention, as shown in FIG. 3 (a), the failed engaging pin c is disconnected in a short time without removing the bogie at the position D, and the bogie 20 and the drive frame 10 are forcibly connected. Cut off. Thereafter, as shown in FIG. 3B, the drive frame 10 is retracted, and the fact that the engagement pin c is unusable is externally input to the drive frame control device. The drive frame control device automatically selects one pitch feed or two pitch feed based on the logic illustrated in FIG. 6 (or FIG. 7), so that the drive frame control device can be used without using the disengaged engagement pin c. 11 is operated to send the cart 20. Thus, storage transport can be continued.

FIG. 1 is an explanatory diagram of an embodiment. FIG.
This shows an example of the operation when the engagement pin c is out of order as indicated by the crosses. As shown in FIG. 1A, the carriage 20 is transported by one pitch feed to a position B immediately before the failure engagement pin c. While the carriage 20 is connected to the drive frame 10 by the engagement pin b, the drive frame 10 is driven by two pitches as shown in FIG. 1B to convey the carriage 20 to the D position. Here, the engagement pin b is released, and then, as shown in FIG.
By two pitches. Thereby, the carriage can be transported by storage without using the engaging pin c.
Next, as shown in FIG. 1 (d), the bogie 20 and the drive frame 10 are engaged by an engaging pin d.
(E) and (f) as shown in FIG.

The above description has been given of an example of the repetitive operation by the two-pitch feed. However, as can be easily understood, the reciprocal operation can be performed on a transfer device capable of feeding a plurality of pitches of three pitches or more according to the same concept. is there. It is sufficient to prepare a necessary number of transport devices having a pitch feed function in consideration of the reliability of the engaging pins so that the rescue operation can be performed even when the adjacent continuous engaging pins fail.

Next, FIGS. 6 and 7 will be described. FIG. 6 shows a shuttle shift transport device in which the drive frame 10 has 19 engagement pins 11 and the pitch is 3 m.
This shows a case where the second engagement pin 15 has failed. The engagement pin shown in black in the drawing is the failed engagement pin 15. This is kept unconnected and is not used. FIG.
By feeding two pitches as shown in (c), operation stoppage can be prevented.

FIG. 7 shows a specific means for transporting the ninth engaging pin 15 by dropping it. FIG. 7A shows a state in which a large number of carts 20 are mounted on the drive frame 10 and are transported with the engagement pins 11 locked.
The second engagement pin 15 is malfunctioning. This engagement pin 1
5 is kept unconnected and is not used. As shown in FIG. 7 (b), the drive frame 10 is retracted by one pitch, and the engagement pin 15 is disengaged to feed one pitch.
(C). The carriage ahead of the engagement pin 15 engages with the engagement pin 16 indicated by the shadow line and moves forward, and the carriage behind the engagement pin 15 remains at that position. Next, the carriage behind the engagement pin 15 is engaged with the engagement pin (FIG. 7D), and when the drive frame 10 is advanced, as shown in FIG.
The state shown in FIG. 7B is advanced by two pitches. Next, as shown in FIG. 7F, the drive frame 10 is pulled back by two pitches. Thus, the truck corresponding to the failed pin 15 becomes empty, but the conveyance can be continued without stopping the operation.

FIGS. 8 and 9 show when the seventh, ninth, and thirteenth engagement pins 15 shown in black in the shuttle shift transport device having 19 engagement pins malfunction. FIG. 9 is an operation diagram in a case where these are conveyed in a non-connected state. The engagement pins 16 shaded indicate engagement pins that are engaged before and after the uncoupled engagement pins 15 when the drive frame advances. 8 (a) to 8 (f) show FIG.
(A) to (f) correspond to the operation of the drive frame,
The same operation is performed for the thirteenth engagement pin 15. The ninth engagement pin 15 is disconnected from FIG. 9 (a) to 9 (g) show a transport process following FIG. 8, and the seventh engagement pin 15 from FIG. 9 (c) is not connected.

The specific transporting steps in FIGS. 8 and 9 are as follows.

FIG. 8 (a): Pins # 7, 9, 13 are out of order FIG. 8 (b): Pins # 14 to # 19 are engaged and retracted by one pitch FIG.
(C): One pitch advance FIG. 8 (d): # 14-18 pins,
FIG. 8 (e): One pitch forward view FIG.
(F) ... # 14, # 16-19, and # 10 pins are engaged,
Fig. 9 (a) 2 pitch retreat Fig. 9 (b) 1 pitch advance
14, # 16 to 19, # 10 to 12, and # 8 pins are engaged. FIG. 9 (c): one pitch advancement FIG. 9 (d): # 14, # 16,
# 18-19, # 8 pins are engaged and two pitches are retracted.
(E): One pitch advance FIG. 9 (f): # 14, # 16, #
18. Engage the # 10 # 1 to # 6 pins. FIG. 9 (g)... By one or more pitch advance steps, even if a plurality of engagement pins are out of order, the carriage can be continued.

Next, FIG. 10 is an overall side view of a connecting portion of the carriage 20 and the drive frame 10 of the shuttle shift bogie transporting apparatus, and FIG. 11 is an explanatory view of a hydraulic system for disengaging the engaging pin 11. is there. In FIG. 10, the bogie 20 moves together with the driving device 10 by engaging the engaging pin 11 of the drive frame 10 with the engaging portion 21 of the bogie 20.
A device for engaging and disengaging the engagement pin 11 with the engagement portion 21 is an actuator 12, and the hydraulic pressure switching device 13 operates the actuator 12. As shown in FIG. 11, the hydraulic circuit includes a switching valve 4 from a hydraulic source 41 via a valve 42.
Pressure oil is supplied via 4 to actuate the actuator 12 in the forward and reverse directions.

According to the present invention, the pressure release valve 43 is provided on the secondary side of the switching valve 44 of the actuator for operating the engagement pin. Since the release valve 43 is opened and the engagement pin is manually released by the separately provided engagement pin release lever 14, the engagement pin 11 can be released in a short time, and the operation can be continued. Will be able to

FIG. 12 is a graph showing the effect of reducing the line stop time according to the present invention. Conventionally, when a failure such as an operation failure occurs in the engagement pin, first, a safety measure 51 is performed, and after a cause investigation, a repair work, and a test run process 52, a safety measure release 53 is performed. The time required for this is roughly 6
It took 0 minutes. In the embodiment, after the safety measure 51, only the engagement pin non-connection processing 54 is performed, and the safety release measure 53 is performed. The line stoppage was restored in about 15 minutes. The drastic rehabilitation was scheduled to be performed on a later scheduled rehabilitation date, so the sudden downtime of the line could be greatly reduced.

[0026]

As described above, according to the present invention,
In the shuttle shift bogie transport device, even if a failure occurs in the engagement pin connecting the bogie and the drive frame, the transport is not impossible, and the operation can be smoothly continued. For example, it can be estimated that the downtime of the transport line in the bogie transport device shown in FIGS. 8 and 9 can be reduced to 10% or less of the conventional value by the present invention.

Further, since the detaching operation of the engaging pin for disengaging the engaging pin can be performed externally, the line stop time when the engaging pin fails can be greatly reduced. In addition, the provision of the exclusive release lever for detaching the engaging pin has an effect that the detaching operation of the engaging pin can be performed safely and easily.

[Brief description of the drawings]

FIG. 1 is an operation diagram of an embodiment device.

FIG. 2 is a partial explanatory view of FIG. 1;

FIG. 3 is a partial explanatory view of FIG. 1;

FIG. 4 is an explanatory diagram of a conventional technique.

FIG. 5 is an explanatory diagram of a conventional technique.

FIG. 6 is an operation explanatory view of the embodiment.

FIG. 7 is an operation explanatory view of the embodiment.

FIG. 8 is an operation explanatory view of the embodiment.

FIG. 9 is an operation explanatory view of the embodiment.

FIG. 10 is an overall side view of a carriage and a drive frame of the shuttle shift carriage transport device.

FIG. 11 is an operation hydraulic circuit diagram of an engagement pin.

FIG. 12 is a graph showing the effect of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Drive frame 11 Engagement pin 12 Actuator 13 Hydraulic pressure switching device 14 Release lever 20 Bogie 21 Engagement part 30 Coil 41 Hydraulic power source 42 Valve 43 Depressurization valve 44 Switching valve 51 Safety measure 52 Cause investigation, repair work and trial run process 53 Safety action release 54 Non-connection processing

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoji Konno 1-chome, Mizushima-Kawasaki-dori, Kurashiki-shi, Okayama Pref. 3F036 BA07 DA04 DA07

Claims (2)

[Claims] 1. A shuttle shift bogie transport device that reciprocates one pitch at a time, comprising means for disengaging an arbitrary engaging pin connecting the bogie and the drive frame, and driving over the uncoupled bogie. A bogie transport device comprising a drive frame control device for feeding a frame at a plurality of pitches. 2. The carriage conveying device according to claim 1, wherein the means for disengaging the engagement pin comprises a pressure release valve and a manual lever.