JPS6110835Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention automatically removes crops (cut slabs) at the boundary and rear end of different steel grades, which have been carried out from continuous casting equipment for different steel grades and cut by a cutting device, from the slab conveyance line. This invention relates to an automatic slab extraction device that extracts slabs.

Recently, in continuous casting equipment, the ratio of continuous casting of different steel types has become large, but in continuous casting of different steel types, when the boundary or rear end of different steel types is cut by a gas cutter, The harvested crops are being removed from the conveyor line. Conventionally, the main method used to transport crops (cut slabs) from a carry-out line is to install a crop cart between rollers and allow the crops to fall onto the cart by gravity. However, with this method, when the length of the crop is close (near 300 mm), the crop falls in an orderly manner;
When the length is about m, it falls on an incline, and the directionality after falling is not constant, resulting in a mixture of crops, which poses a problem that hinders handling in the subsequent process.

This idea was made in view of the above-mentioned problem, and it runs in synchronization with the gas cutting device, and when the cutting is completed, it grabs the crop and pulls it away from the succeeding slab with a quick pulling action, and it rises, and then moves to the side. It is an object of the present invention to provide an automatic slab extracting device which is characterized in that the cast slabs are moved toward one crop truck and placed on the crop truck in an orderly manner. Specifically, a device is used to take out crops at the boundaries and rear ends of different steel types, which are carried out from continuous casting equipment for different steel grades and cut by a gas cutting device that runs in synchronization, from the conveyance line of slabs, and the above-mentioned conveyance line is used. A running girder is constructed above the cutting position in a direction perpendicular to the carry-out line, and a wheel attached to the upper part of the running frame is slidably fitted and suspended on the rail of the running girder. is rotated by a hydraulic motor installed on the traveling frame so that the traveling frame reciprocates between the carry-out line and the crop cart side along the traveling girder, and a roughly inverted T-shaped lifting frame is attached to the traveling frame by a downward hydraulic motor. It is suspended via a cylinder so that it can be raised and lowered freely, and a transverse rail is provided in the lower horizontal part of the elevating frame in the same direction as the carry-out line, and a wheel attached to the transverse rail is slidably fitted to the transverse rail. supporting the traversing rail, and connecting the traversing frame to a rod of a hydraulic cylinder attached to the elevating frame so that it moves along the unloading line at a speed faster than the unloading speed of the slab;
and a pair of arms are pivotally attached to the transverse frame so as to be able to swing freely, a claw for grabbing a crop is attached to a protrusion at the lower end of the arm, and a hydraulic cylinder is interposed in the upper part of the pair of arms; The claws are moved toward and away from each other via the arm by the operation of the hydraulic cylinder, and furthermore, a contact piece is protruded from the upstream end of the carry-out line of the above-mentioned transverse frame via a spring, and the corresponding contact piece is used for gas cutting. When the contact piece comes into contact with the pressing part of the device, it is pushed by the pressing part so that the traversing frame travels in synchronization, and when the corresponding contact piece comes into contact with the pressing part, a contact detection signal is generated. ,
The detection signal drives the hydraulic cylinder for operating the arm, the hydraulic cylinder for operating the traversing frame, and the hydraulic cylinder for operating the elevating frame to grasp the crop with the claws, and also operate the traversing frame and the elevating frame to remove the crop from the following slab. The crop is separated and raised, and after being raised, the hydraulic motor is driven to move the crop toward the crop cart.

This invention will be explained in detail below with reference to embodiments shown in the drawings.

In the figure, 1 is a slab, 2 is a gas cutting device, and 3 is an automatic slab extraction device.
It consists of a gripping device 8 and a contact piece 9 that also serves as a contact detection piece that becomes a limit switch for linked operation with the gas cutting device 2.

The slab 1 is guided and held by guide rollers 11 from a mold (not shown) and is conveyed out along a conveyance line. The gas cutting device 2 runs downstream of the delivery line in synchronization with the slab and cuts the slab 1 into appropriate dimensions.The gas cutting device 2 has a pusher on the downstream end surface that comes into contact with the contact piece 9. We have a department 12.

The running girder 4 of the automatic slab extraction device 3 is installed above the slab cutting completion position of the carry-out line in the horizontal direction orthogonal to the carry-out line, and stops running at a position above the carry-out line and the cropping cart 13. A limit switch 14 is provided for this purpose. Wheel 18 attached to the upper part of the traveling frame 15 of the traveling device 5
The wheels 18 on the rails 17 of the running girder 4 are rotatably driven by two hydraulic motors 16 attached to the upper end of the running frame 15. However, it is designed to travel back and forth between the slab delivery line and the crop cart side. A logic valve is provided to enable speed control during travel. Lifting device 6
, an approximately inverted T-shaped elevating frame 20 is supported by the traveling frame 15 via a hydraulic cylinder 21, and the downward rod 21a of the hydraulic cylinder 21 attached to the traveling frame 15 is connected to the elevating frame 20.
The hydraulic cylinder 21 is connected to the lower horizontal portion 20a of the hydraulic cylinder 21 to perform vertical movement. At this time, the upper vertical portion 20b of the elevating frame 20 is guided by a guide roller 22 attached to the traveling frame 15. Lower horizontal portion 20 of the lifting frame 20
In a, there is a transverse rail 23 in the same direction as the carry-out line.
A wheel 25 attached to the traversing frame 24 of the traversing device 7 is slidably supported. The above-mentioned transverse frame 24 is the elevating frame 20
A rod 26a extending in the front and rear direction of the hydraulic cylinder 26 attached to the hydraulic cylinder 2 is connected to the hydraulic cylinder 26.
6, the slab is moved forward (downstream) along the slab delivery line at a speed faster than the conveyance speed of the slab. Contact pieces 9 are protruded from both ends of the upstream side of the carry-out line of the transverse frame 24 via springs (not shown), and the contact pieces 9 are connected to the pressing part 12 of the gas cutting device 2. When abutting, the traversing frame 24 is pushed by the pressing portion 12 and moves in synchronization with the gas cutting device 2. Further, the corresponding contact piece 9 also functions as a limit switch for contact detection, and generates a contact detection signal to operate the gripping device 8. The gripping device 8 consists of a pair of arms 29, 29 swingably attached to the transverse frame 24 with a pin 28, and claws 30, 30 attached oppositely to the protruding lower end of each arm 29, 29. A hydraulic cylinder 31 is interposed at the upper part of the arms 29, 29, and when the hydraulic cylinder 31 is operated, the arms 29, 29 swing about the pins 28, 28 as fulcrums, and the lower end of the arms 29, 29 is attached to a portion where the claw 30 is attached. I try to keep them close to each other and away from each other. The claws 30, 30 are provided with bearings 32, 3 protruding from the inner surface of the lower end of the arms 29, 29.
It protrudes from support shafts 33, 33 supported by 2,
When approaching, the slab 1 is held between both sides.

The hydraulic unit for driving the hydraulic cylinder 21 of the lifting device 6, the hydraulic cylinder 26 of the traversing device, and the hydraulic cylinder 31 of the gripping device 8 is the traveling frame 15.
It is installed on top. Further, a cable bear 35 is provided so that the bent portions of hydraulic hoses, electric wires, etc. can move smoothly when the traversing frame 24 is traversing.

Next, the operation of the device will be explained.

When the gas cutting device 2 clamps the slab 1 and moves downstream at the slab speed, the contact piece 9 of the automatic slab extraction device 3, which was waiting at a predetermined position, and the gas cutting device 2 press together. The contact portion 12 makes contact. The transverse frame 24 is pressed by the contact, and the gas cutting device 2
and moves forward (downstream side) in synchronization with the slab 1. At this time, the impact of the abutting piece 9 when abutting is alleviated by the spring. At the same time, a contact detection signal is generated by the contact between the contact piece 9 and the pressing portion 12, the hydraulic cylinder 31 is driven, and the arms 29, 29 are operated in the direction in which the claws 30, 30 approach. When the cutting of the slab 1 is completed by the gas cutting device 2, the claws 30, 30 completely grasp the slab 1, and the hydraulic cylinder 26 is driven to move the transverse frame 24 forward at a speed faster than the slab speed. Pull it away from the following slab. and,
At the same time as the hydraulic cylinder 26 is driven, the hydraulic cylinder 21 is driven to raise the elevating frame 20. Therefore, the slab (crop) held by the gripping device 8 is lifted forward and upward from the carry-out line. With the traveling frame 15 lifted to a predetermined position, the traveling frame 15 travels on the traveling rails 17 by the hydraulic motor 16, and moves in a direction perpendicular to the carry-out line while lifting the slab. When moving to the upper position where the crop cart 13 is placed,
The traveling frame 15 is stopped by the detection signal of the limit switch 14, and then the elevating frame 20 is lowered and the arms 29, 2 are moved on the cropping cart 13.
9 is operated in the direction of separating from each other, and the clamped slabs are placed on the crop cart 13 in an orderly manner.

As is clear from the above explanation, according to the automatic slab extraction device according to the invention, the cut crops (slabs) are lifted forward and upward from the carry-out line, and then transferred to the crop truck side, and then transported to the crop truck side. Since they are placed on top in an orderly manner, it is possible to prevent crops from getting mixed up. Therefore, it has the advantage of being able to achieve automation and labor saving without interfering with handling in subsequent processes.

[Brief description of the drawings]

FIG. 1 is an overall view of the device showing an embodiment of this invention.
2 is a view taken along the arrow in FIG. 1, FIG. 3 is an enlarged view of the main part of FIG. 1, and FIG. 4 is a side view of FIG. 3. 1... Slab, 2... Gas cutting device, 3... Automatic slab extraction device, 4... Running girder, 5... Running device,
6... Lifting device, 7... Traversing device, 8... Grasping device, 9... Contact piece, 12... Pushing part, 15...
Traveling frame, 16... Hydraulic motor, 20... Elevating frame, 24... Traversing frame, 29... Arm, 30... Claw, 21, 26, 31... Hydraulic cylinder.

Claims (1)

[Scope of Claim for Utility Model Registration] A device for taking out crops at the boundary and rear end of slabs of different steel grades carried out from a continuous casting facility of different steel grades and cut by a gas cutting device running in synchronization from a conveyance line. Then, a running girder is erected in a direction perpendicular to the carrying out line above the cutting position of the carrying out line, and a wheel attached to the upper part of the running frame is slidably fitted to the rail of the running girder and suspended. At the same time, a hydraulic motor is installed on the traveling frame to drive the wheels to rotate and reciprocate between the carry-out line and the crop cart, and a roughly inverted T-shaped lifting frame is raised and lowered on the traveling frame via a downward hydraulic cylinder. In addition to freely hanging the elevating frame, a traversing rail is provided in the lower horizontal part of the elevating frame in the same direction as the carry-out line, and a wheel attached to the traversing frame is slidably fitted to the traversing rail to raise the traversing frame. At the same time, the transverse frame is connected to a rod of a hydraulic cylinder attached to the lifting frame so as to move along the discharge line at a speed faster than the discharge speed of the slab, and a pair of arms are attached to the transverse frame. is pivotally attached to the arm, and a claw for grabbing the crop is attached to the protrusion at the lower end of the arm, and a hydraulic cylinder is interposed at the upper part of the pair of arms, and the arm is operated by the hydraulic cylinder. the claws approach and separate from each other, and further, a contact piece is protruded from the upstream end of the carry-out line of the traversing frame via a spring, and comes into contact with the pressing part of the gas cutting device;
An automatic slab extraction device characterized in that the corresponding contact piece also serves as a detection piece that issues a drive signal to each of the hydraulic cylinders when it comes into contact with the pressing portion.