JPH0442257Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a chain conveyor for transporting coils used in steel mills.The coils placed on the conveyor are stored in front of each other, absorbing the imbalance in processing capacity between the front and rear equipment, and improving operational efficiency. The present invention seeks to provide a coil conveyor for improved flexibility.

Conventionally, there are two types of conveyors for conveying coils in steel works: one is to place the coil directly on a conveyor chain, and the other is to place the coil on a coil truck and pull it with a chain directly connected to the truck. Because the coil moves, if there is a coil at the end of the conveyor, it will become inoperable, leading to the shutdown of upstream equipment. Furthermore, since the number of coils loaded on the conveyor is large, there is a drawback that a large amount of driving force is required.

The purpose of the present invention is to solve the above-mentioned drawbacks of the conventional device, and the purpose of the present invention is to transport the coil by engaging a shaft provided on the coil loading cart with a pusher dog provided on the conveyor chain. ,
The bogie fixing device and the chain pusher attachment/detachment device are provided at the same interval as the chain pusher pitch,
Furthermore, the present invention is characterized in that an empty truck supply device is provided which can be operated independently of the conveyor chain and supplies an empty truck to the transportation start position of the truck.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 is a coil loading trolley, 2 is a conveyor chain for conveyance, 3 is a chain pusher attachment/detachment device, 4 is a trolley fixing device,
Reference numeral 5 indicates a trolley return storage conveyor, and 6 indicates an empty trolley supply device.

The coil C loaded at point A in FIG. 1 is normally transported to point B and transferred to a subsequent machine. A pusher attachment/detachment device 3 and a truck fixing device 4 are provided at positions R to F between point B and point A to point A and y, so that the truck 1 can be stopped in the middle.

The empty truck from which the coil has been discharged at point B A moves further forward, is reversed by the guide rail of the head sprocket, is returned by the truck return storage conveyor 5, and is stored at its right end position. Reference numeral 5 is a known conveyor that is operated continuously to store empty carts in a front-loaded manner. 6 is an empty truck supply device installed at the starting end;
This is to supply an empty truck in a timely manner after the truck started from point A (transfer starting position of the truck), and one empty truck is always kept on standby. The first empty truck stored by the conveyor 5 becomes free to travel when the stopper (not shown) that was stopping the empty truck is released, and the hook (not shown) provided on the chain 5 is engaged. is sent out to the right in FIG. On the other hand, the chain 30 of the empty truck supply device 6 operates in response to the empty truck request signal, and its hook (not shown) engages with the shaft 1' of the empty truck, which will be described later.
Push the empty cart to the point yo position and put it on standby. The waiting empty truck is conveyed to the left in FIG. 1 by the conveyor chain 2, with a pusher dog 10, which will be described later, engaged with the shaft 1'. As shown in FIG. 1, the chain 30 spans between one sprocket 31 and the other sprocket (not shown) provided near the right end.
This empty truck supply device 6 is installed next to the conveyor chain 2 and can be operated independently of the movement of the conveyor chain 2, so it is not necessary to temporarily stop the conveyor chain 2 to supply empty trucks. Coil conveyance becomes even smoother.
Moreover, the transportation time can also be shortened.

Next, FIG. 3 shows the raised state of the pusher dog of the chain pusher attaching/detaching device 3, and FIG. 4 shows the lowered state of the pusher dog of the same device.

Reference numeral 10 denotes a pusher dog held by a pin 11 on the conveyance chain 2. A guide roller 12 attached to the lower part of the pusher dog 10 rolls on guide rails 13 and 14 to maintain its posture, and the carriage 1
The cart 1 is propelled by pushing the shaft 1' attached to the wheel.
Incidentally, reference numeral 15 is a retainer dog for preventing the cart from moving ahead, and it is always raised up due to its own weight.

When the bogie is to pass through the stop position, the air cylinder 16 is operated to hold the guide rail 14 in the raised position. The pusher dog 10 propels the cart 1 while maintaining the same height as shown by the broken line in FIG.

On the other hand, when operating the chain 2 with the trolley 1 stopped, use the air cylinder 16 as shown in Figure 4.
to move the guide rail 14 to the lowered position. Since the guide roller 12 of the push dog 10 moves along the guide rails 13, 14, the trajectory of the push dog 10 can pass under the shaft 1' of the truck 1 as indicated by the broken line in FIG.

The chain pusher pitch P, the truck fixing device, and the pusher attachment/detachment device are arranged at equal intervals, so that all the trucks 1 can be engaged and transported from the chain's fixed stop position. Attachment and detachment of the pushers is carried out while the machine is stopped due to the heavy load being transported.

Next, FIG. 5 shows an example of the trolley fixing device 4, in which 1'' is a holding member attached to a fixed position of the coil loading trolley 1. Reference numeral 21 is a pair of swing arms, and the fulcrum 22 is Swirl around, 2 when open
The position is indicated by the dotted chain line. Opening/closing operation is done by air cylinder 24
is operated to perform opening/closing operations via the link mechanism 23. Note that it is of course possible to perform the opening/closing operation by interlocking gears instead of the link mechanism.

Operation of conveyance chain 2 and pusher attachment/detachment device 3
And the bogie fixing device 4 shall ensure electrical interlock to prevent malfunction. That is,
When operating the bogie, the bogie fixing device 4 is opened, the chain pusher is in the raised position, and the presence or absence of the coil is checked. When the truck is stopped, the truck fixing device 4 is closed and the pusher is lowered and disengaged. When the trolley is started, the pusher rises and the trolley fixing device is opened and started.
When starting and stopping, low-speed operation is performed to reduce the impact.

Note that instead of the empty truck storage conveyor 5, a truck fixing device and a chain pusher engaging device can be provided.

Since the present invention is configured as described above, the cart carrying the coil can move forward until it approaches the preceding coil cart, and even if the coil processing of the preceding coil cart is delayed, it can be stored on the conveyor. . In addition, since it has a storage function for the trolley, there is great flexibility in operation and there is little negative impact on upstream operations.

Further, according to the present invention, the number of coils loaded on the conveyor is small, so the required power is small and the energy saving effect is large. In addition, since the coils are transported on carts, there is no damage to the coils, which improves quality. and,
The coil truck has good stopping accuracy, making stable transfer possible.

Furthermore, since we have installed an empty truck supply device that can be operated independently of the conveyor chain, there is no need to temporarily stop the conveyor chain to supply empty trucks, making coil conveyance smoother.
Transport time can be shortened.

[Brief explanation of the drawing]

1 is an overall front view, FIG. 2 is a longitudinal sectional view, FIGS. 3 and 4 are explanatory diagrams showing the operation of the chain pusher attachment/detachment device, and FIG. 5 is a top view of the bogie fixing device. 1...Coil loading trolley, 1'...shaft, 2...
Conveyor chain for conveyance, 3... Chain pusher attachment/detachment device, 4... Truck fixing device, 6... Empty truck supply device, 10... Pusher dog.

Claims (1)

[Scope of utility model registration request] The cart is conveyed by engaging a shaft provided on the coil loading cart with a pusher dog provided on a conveyor chain for conveyance, and the fixing device of the cart and the chain pusher attaching/detaching device are arranged at the same interval as the chain pusher pitch. What is claimed is: 1. A coil storage conveyor, further comprising: an empty truck supply device that can be operated independently of the conveyor chain and supplies an empty truck to a conveyance start position of the truck.