JP3668362B2 - Metal or metal scrap input device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a metal or metal scrap charging device for charging metal or metal such as aluminum into a melting furnace.
[0002]
[Prior art]
In order to put metal or metal scrap into the melting furnace, place a small bucket containing metal or metal scraped near the loading port, and place the metal on the claws of a long fork that can rotate the forklift. Or insert the claws of the fork into a small bucket containing metal scrap, move the fork forward to place the metal or small bucket into the melting furnace, and rotate the fork to move the metal or metal scrap into the melting furnace. It is dropped and thrown in.
[0003]
[Problems to be solved by the invention]
Since the metal scraps placed in a bullion or small bucket are thrown in one by one unit, the shape of the piles after being thrown in both the depth direction and the furnace width direction in the furnace becomes uneven, and the height Becomes higher. For this reason, there is a problem in that it is difficult to automate the input because it requires a mountain break in order to make it flat.
[0004]
In addition, since the forklift is manually operated, the worker is not only exposed to high-temperature heat from the furnace, but also in a poor environment where metal powder is scattered from the inlet. Furthermore, when the metal falls, the molten metal may splash from the inlet, which is extremely dangerous and harsh. Further, there is a drawback that requires skill to put ingots or debris into a predetermined place in the furnace, and it has been desired to unmanned and automate the introduction of ingots or debris.
[0005]
The present invention provides a metal or metal waste throwing device that can be automatically operated, enables unmanned charging work, and can uniformly charge metal or metal scrap in the depth direction of the melting furnace and the width direction of the melting furnace. It is to provide.
[0006]
[Means for Solving the Problems]
The metal and metal scrap input device according to the present invention is capable of loading a plurality of metal pallets and a metal pallet having a plurality of small metal buckets on which the metal metal loading surface can prevent the metal from slipping. A large metal bucket that can be loaded, and a melting furnace width equipped with a fork that can be inserted into and removed from the fork insertion hole of the large pallet loading pallet and the fork insertion hole of the large metal bucket, and that has a function of moving up and down, a function of moving up and down, and a function of rotating In a metal or metal scrap input device composed of a traveling cart that travels in the direction , the large metal pallet and the large metal bucket have a length corresponding to the depth length in the maximum furnace and are connected to the rotating shaft of the fork. Clamping holes are provided for receiving the clamps. The large metal load pallet, the large scrap bucket and the fork rotation shaft are in contact with the charge accumulated in the melting furnace. Comprising a furnace interior container interference detecting device for detecting that Tsu, characterized in that it comprises a further large metal scrap bucket detecting device capable of detecting large metal scrap bucket to the axis of rotation of the fork.
[0011]
It includes an emergency power supply that can release the brakes of the fork turning device, the lifting device, the forward / reverse device, and the traveling device of the traveling carriage during a power failure.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a front view of the charging device of the present invention, and FIG. 2 is a plan view.
[0013]
The charging device 1 includes a traveling carriage 6 that travels on wheels 4 along a rail 4 provided along the inlet 3 of the melting furnace 2, and a forward / reverse device 7 that travels forward and backward on the traveling carriage 6 with respect to the melting furnace 2. It has.
[0014]
The forward / backward moving device 7 is provided with a fork 8 that can be inserted into and removed from a fork insertion hole 16 (FIG. 3) of a large bullion loading pallet P (described later) and a fork insertion hole 34 (FIG. 5) of a large metal scrap bucket B.
[0015]
The fork 8 is connected to a rotating device 10 such as a motor by a rotating shaft 9 and is rotatable. The rotating shaft 9 is provided on a fork lifting platform 12 in a vertical frame 11 provided in the forward / reverse movement device 7. Note that power is supplied to the motors of the traveling carriage 6, the forward / reverse movement device 7, and the rotation device 10 through the cable drum 13.
[0016]
The fork 8 can be moved up and down by a lifting device, and the lifting device is composed of a wire rope 14 and a winding drum 15 fixed to a fork lifting table 12 in the vertical frame 11, and the wire rope 14 is wound around the winding drum 15. The fork 8 is moved up and down by rewinding. By having an elevating function, it is possible to change the fork height according to the pile that has been previously input.
[0017]
FIG. 3 shows a large bullion loading pallet, FIG. 3- (a) is a plan view, FIG. 3- (b) is a front view, and FIG. 3- (c) is a side view.
[0018]
The large bullion loading pallet P is provided with a fork insertion hole 16 into which the fork 8 of the loading device 1 can be inserted and removed, and a bullion loading plate 17 on which a plurality of bullion can be loaded is provided on the fork insertion hole 16. The length of the large bullion loading pallet P can be uniformly charged into the furnace by setting the length corresponding to the depth length in the furnace to the maximum length.
[0019]
It is preferable to provide an anti-slip 18 on the bullion loading plate 17 so that the bullion does not slide down at the initial rotation of the large bullion loading pallet P. By providing a non-slip 18 on the bullion loading plate 17, when the bullion is rotated and dropped, the bullion crushed on the loading surface of the bullion loading plate 17 is almost free from sliding and collapsed after falling down. Less. It is also possible to avoid large bullion from sliding down and leaning on the pallet when it falls.
[0020]
On the charging device side of the large bullion loading pallet P, a clamp hole 19 into which the clamp of the charging device 1 enters is provided.
[0021]
Further, the large bullion loading pallet P may be provided with a furnace interior entrance interference detection device for detecting that the front end of the pallet P interferes with the charge of the metal or metal scrap accumulated in the furnace. In the furnace interior entrance interference detection device, a detection bumper 20 is provided at the tip of a large bullion loading pallet P, one end of a detection rod 21 is connected to the back of the detection bumper 20, and the other end is connected to the large bullion loading pallet P. A push surface 22 that pushes the detection rod contact surface 23 provided in the feeding device 1 is made to protrude slightly.
[0022]
FIG. 4 shows the furnace interior entrance interference detection device and the clamping device of the charging device, FIG. 4- (a) is a front view, and FIG. 4- (b) is a side view.
[0023]
The detection rod contact surface 23 is provided at the lower end of the lever 24, and the intermediate portion of the lever 24 is pivotally attached to a support member 25 fixed to the side surface of the rotating shaft 9. 26 is rotatably connected, and the rod 26 is biased by a coil spring 27 so that the detection rod contact surface 23 faces outward. The rod 26 is provided with a protrusion 29 that turns on the limit switch 28 when the rod 26 moves outward.
[0024]
When the detection bumper 20 of the large bullion loading pallet P hits the charged metal or metal scrap loaded in the furnace, the detection rod 21 moves and the pressing surface of the detection rod 21 moves. 22 pushes the detection rod contact surface 23 of the loading device 1 and rotates the lever 24, and the rod 26 moves accordingly, the projection 29 provided on the rod 26 turns on the limit switch 28, and the large bullion loading pallet It can be detected that P interferes with the charge. By detecting the interference with the charge in the furnace, the forward-reverse device 7 can be stopped to protect the machine.
[0025]
The clamp device is configured such that the lower end of the clamp 31 is pivotally attached to a support member 30 fixed to the lower portion of the rotary shaft 9, and the upper end of the clamp 31 is rotatably connected to a rod 33 that moves by an air cylinder 32. It has become.
[0026]
After the fork 8 of the charging device 1 is inserted into the fork insertion hole 16 of the large bullion loading pallet P, when the air cylinder 32 is driven and the rod 33 is pushed, the clamp 31 rotates downward and the large bullion loading pallet. The large bullion loading pallet P can be securely fixed to the fork 8 by entering the P clamping hole 19. It is possible to prevent a large bullion loading pallet or a large metal scrap bucket from being caught and misplaced by the charge accumulated in the melting furnace by the clamp device.
[0027]
FIG. 5 shows a large metal scrap bucket, FIG. 5- (a) is a plan view, FIG. 5- (b) is a front view, and FIG. 5- (c) is a side view.
[0028]
The large metal scrap bucket B is provided with a fork insertion hole 34 into which the fork 8 of the charging device 1 can be inserted and removed, and a large bucket 35 for storing metal scrap is provided above the fork insertion hole 34.
[0029]
The large metal scrap bucket B is also provided with a clamp hole 19 into which the clamp 31 of the above-described charging device 1 enters, similarly to the large metal pallet loading pallet P, so that the large metal scrap bucket B is securely fixed to the fork 8.
[0030]
Further, the large metal scrap bucket B may be provided with a furnace interior entrance interference detection device for detecting that the front end of the large metal scrap bucket B interferes with a bullion accumulated in the furnace or a metal scrap charge. In the furnace interior entrance interference detection device, similarly to the large metal loading pallet P, the detection bumper 20 is provided at the tip of the large metal scrap bucket B, one end of the detection rod 21 is connected to the back surface of the detection bumper 20, and the like. The end is slightly protruded from the large metal scrap bucket B to form a pushing surface 22 that pushes the detection rod contact surface 23 provided in the feeding device 1. The operation of the furnace interior entrance interference detection device is as described for the large bullion loading pallet P, and the description thereof is omitted.
[0031]
In FIG. 4, the detection rod 36 is supported on the rotary shaft 9 so as to be able to reciprocate, and the detection rod 36 is biased outward by a coil spring 37. The detection rod 36 is provided with a projection 39 that turns on the limit switch 38 when the detection rod 36 moves inward.
[0032]
When the fork 8 of the charging device 1 is inserted into the fork insertion hole 34 of the large metal scrap bucket B, the detection seat 40 provided on the upper portion of the large metal scrap bucket B hits the detection rod contact surface 41 and the protrusion provided on the detection rod 36 The limit switch 38 is turned on, and the large metal scrap bucket B can be confirmed. By distinguishing the large metal waste bucket B and the large metal pallet loading pallet P, the types of metal and metal waste can be easily distinguished.
[0033]
In addition, the fork can be quickly pulled out from the melting furnace by providing the charging device 1 with an emergency power supply device for releasing the brake at the time of a power failure, and can be protected from thermal damage to the machine.
[0034]
The operation of the charging device of the present invention will be described.
[0035]
The forward / backward moving device of the charging device moves forward, the fork is inserted into the fork insertion hole of the large metal scrap bucket containing the metal scrap on the metal scrap distribution floor, and the fork is raised to lift the large metal scrap bucket from the layout floor. Next, the forward / backward moving device is moved backward, the large metal scrap bucket is moved above the carriage, and travels from the metal scrap arrangement floor to the front of the melting furnace. On the front side of the melting furnace, the forward / backward moving device moves forward, inserts a large metal scrap bucket containing metal scrap into the melting furnace, rotates the fork, and throws the metal scrap in the large metal scrap bucket into the melting furnace. After the metal scrap is thrown in, the fork rotates back and the forward / reverse device moves backward to extract the large metal scrap bucket from the melting furnace. After extracting the large metal scrap bucket, it travels from the melting furnace to the metal scrap distribution floor.
[0036]
The bullion input is performed by the same operation as the metal scrap input.
[0037]
The back-and-forth device of the input device moves forward, and the fork is inserted into the fork insertion hole of the large bullion loading pallet where the bullion on the bullion distribution floor is placed, and the fork is raised to lift the large bullion pallet from the distribution floor. . Next, the forward / backward moving device is moved backward, the large bullion loading pallet is moved above the carriage, and travels from the bullion distribution floor to the front of the melting furnace. At the front of the melting furnace, the forward / backward moving device moves forward, the large bullion loading pallet on which the metal is placed is inserted into the melting furnace, the fork rotates and the metal on the large metal pallet is loaded into the melting furnace. .
[0038]
After the bullion is charged, the forward / backward movement device moves backward and the large bullion loaded pallet is extracted from the melting furnace. The fork rotates back and runs from the melting furnace to the metal bar.
[0039]
Between the metal waste distribution floor and the metal transfer device, the charging device is used for moving an empty large metal waste bucket and a large metal waste bucket containing metal waste.
[0040]
【The invention's effect】
The effects of the present invention are as follows.
[0041]
(1) In order to throw metal or metal scraps in the depth direction of the melting furnace with one rotation, and by throwing in multiple times while sequentially shifting the charging position according to the pile width in the furnace width direction. Since the height of the piles after the introduction of metal or metal scrap can be made substantially uniform in the subsequent furnace depth direction and furnace width direction, the area in the melting furnace can be used effectively. Moreover, the pile height is lower than that of the conventional method, and the input operation can be automated.
[0042]
(2) Both metal and waste can be used.
[0043]
(3) Since the fork has a lifting / lowering function and a forward / backward moving function, and the loading cart has a traveling function, the loading position can be changed according to the height of the charge accumulated in the furnace, and a large bullion loading pallet Or it can throw in avoiding interference with a large refuse bucket and a charging thing.
(4) Since it has a running function in the furnace width direction, the loading cart can move between the melting furnace, the metal platter, the metal scrap laying floor, and the metal scrap transfer device. In addition, it is possible to input to a plurality of melting furnaces with one input cart.
[0044]
(5) Since the bullion and metal scraps can be easily knitted, there is no waste in the transfer work.
[0045]
(6) Since unloading of metal or metal scrap can be automated and automated, even unskilled workers can perform the charging work, and the worker does not need to approach the furnace opening and is exposed to high temperatures, Freed from dangerous work such as splashing.
[Brief description of the drawings]
FIG. 1 is a front view of a charging device according to the present invention.
FIG. 2 is a plan view of the dosing device of the present invention.
3 shows a large bullion loading pallet, FIG. 3- (a) is a plan view, FIG. 3- (b) is a front view, and FIG. 3- (c) is a side view.
FIGS. 4A and 4B show a furnace interior entrance interference detection device and a clamping device of the charging device, in which FIG. 4-A is a front view and FIG. 4-B is a side view.
5 shows a large metal scrap bucket, FIG. 5- (a) is a plan view, FIG. 5- (b) is a front view, and FIG. 5- (c) is a side view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Loading device 2 Melting furnace 3 Loading port 4 Rail 5 Wheel 6 Traveling carriage 7 Forward / backward moving device 8 Fork 9 Rotating shaft 10 Rotating device 11 Vertical frame 12 Fork elevator 13 Cable drum 14 Wire rope 15 Winding drum 16 Fork insertion hole 17 Ground Gold loading plate 18 Non-slip 19 Clamping hole 20 Detection bumper 21 Detection rod 22 Push surface 23 Detection rod contact surface 24 Lever 25 Support member 26 Rod 27 Coil spring 28 Limit switch 29 Protrusion 30 Support member 31 Clamp 32 Air cylinder 33 Rod 34 Fork Insertion hole 35 Large bucket 36 Detection rod 37 Coil spring 38 Limit switch 39 Protrusion 40 Detection seat 41 Detection rod contact surface P Large metal loading pallet B Large metal scrap bucket

Claims (2)

A large bullion loading pallet that can load multiple bullion and has a bullion loading surface with anti-slip bullion, a large metal bucket that can load metal scraps for multiple small buckets, and a large bullion loading pallet Metal or metal consisting of a traveling cart that travels in the melting furnace width direction and has a fork that can be inserted into and removed from the fork insertion hole and the fork insertion hole of a large metal bucket, and that has a function of moving up and down, and a function of rotating and rotating. In the scrap input device ,
The large bullion loading pallet and the large metal bucket have a length corresponding to the maximum depth in the furnace, and are provided with a clamp hole into which a clamp provided on the rotating shaft of the fork is inserted.
The rotary shaft of the large bullion loading pallet and the large scrap bucket and fork is equipped with a furnace interior entrance interference detection device that detects that it has hit the charge accumulated in the melting furnace, and the fork rotary shaft has a large metal A metal and metal waste throwing device comprising a large metal waste bucket detection device capable of detecting a waste bucket . 2. The metal and metal scrap charging device according to claim 1, further comprising an emergency power supply device capable of releasing a brake of a fork rotating device, a lifting device, a forward / backward moving device, and a traveling device of a traveling carriage during a power failure .

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