JPH06307768A - Automatic material feeder for metal melting furnace - Google Patents

Abstract

PURPOSE:To save labor for work by a method wherein ingots cut into a specified size are piled in a block on a pallet, the block is loaded on a rotary table, and the ingots are lifted stage by stage, cut into pieces on the course of conveyance and charged into a melting furnace. CONSTITUTION:Ingots 10 (10-1-10-n) are piled crosswise in two-parallels on a pallet to form a block, loaded on a rotary table 9 of a truck 5 and conveyed to the Y2 zone. Then, the rotary table 9 is turned corresponding to the arrangement pattern of the ingots on the uppermost stage to direct the ingots 10 in the specified direction. The ingots 10 on the uppermost stage are held by clamp claws 13 from both sides, lifted by a lifting cylinder 17 and transferred parallel as they remain lifted and the hold of the clamp claws 13 is released at the position above a conveyer 18 to transfer the ingots 10 onto the conveyer 18. A cutting cylinder 22 which operates, linked with the intermittent feed actions of the conveyer 18 cuts the ingots 10 into two or more pieces with a tool 28 and then the ingots 10 are charged into a melting furnace.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention employs this method when a metal melting furnace material is cut into a plurality of pieces and put into the melting furnace. Regarding cutting.

[0002]

2. Description of the Related Art A method for charging an ingot into a melting furnace is
In the conventional technique, a chute is formed up to the vicinity of the charging port of the melting furnace, and the chute is charged one by one at a distance from a belt conveyor or manually. In addition, as a recently developed device, one block, which is highly stacked, is placed on a lifting lifter in the shape of a double girder, raised to a position slightly higher than the above chute, and a device that simultaneously pushes out several fractions in a single plane after stopping is used. It slides down and puts it in the furnace mouth. Since the ingot input by this method requires a fairly large furnace opening, it is applicable only to large melting furnaces, and since the inner wall of the melting furnace is a refractory brick wall, a large amount of When thrown in, the brick wall is damaged by the impact of the ingot that slipped off the chute. Therefore, for this reason, it is the current situation that we have no choice but to rely on human resources.

[0003]

As described above, most of the work has conventionally required manpower, but the automatic dosing device of the present invention melts the ingot to be put into any small metal melting furnace. The furnace can be cut into the optimum size and the number of cuts can be set arbitrarily. From these, by adopting the device of the present invention, even in the down-feeding by the chute and the belt conveyor, it is possible to prevent the refractory bricks of the melting furnace inner wall from being damaged by the collision of the ingot, because the cut pieces on it is small. The melting time is also very short, which leads to energy saving, which leads to labor saving and energy saving, which leads to elimination of labor shortage in work, rationalization, and high efficiency, resulting in cost reduction.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and in response to the strong and latent demands of the related technical fields and industries. The ingot can be charged without damaging the melting furnace wall, the melting can be performed quickly, and the ingot that matches the casting cycle can be automatically supplied.
In order to achieve this object, the automatic dosing device according to the present invention cuts a long ingot into a plurality of pieces, and the ingot is supplied to the cutting device by arranging several long ingots in a single plane. Stack them in the shape of a cross and put them on the base plate 1
Blocks are usually stored in a material store. A belt conveyor that puts this on a trolley with a rotary table that rotates 90 degrees using a hawk lift, a crane, etc. Put it on top. The long ingot is cut into a plurality of pieces, and the pieces fall onto a belt conveyor installed at the bottom of the cutting device, and immediately discharged onto a chute connected to a melting furnace.

[0005]

The technical means of the above-described structure according to the present invention operates as follows. That is, FIG.
0 is quoted, the ingots 10-1, ..., 10-n are piled up in the shape of a cross girder, and those placed on the base plate 11 are placed in the Y1 zone by a crane, etc. It is loaded on the rotary table 9 and driven by the carriage drive motor 1 in response to a start signal. The chain wheel 2-1 also rotates the chain 2-2 via the chain 3. Since both ends of the chain 3 are fixed to the carriage 5 with hooks 4-1 and 4-2, the carriage 5 is moved by the stroke S1 and is moved to Y.
It will stop at a predetermined position in the two zones. At this time, if the top row of the ingots is arranged in a line in a plane that is not suitable for cutting the ingot, the sensor 24 detects and sends the signal to turn the turning cylinder 6 90 degrees. In the embodiment of the present invention, the uppermost stage remains in the Y2 zone,
Since it is sufficient that the vertical clamp device is operated as it is, the uppermost stage is automatically transferred as programmed in the control device 26 and transferred onto the belt conveyor 18 in the Y3 zone.
Next, in the second stage, the direction is 90 degrees different from the clamping direction (this detection is performed by the sensor 24 when the above-mentioned clamping device returns to the Y2 zone). It turns and is directed in a direction suitable for the second stage ingot to be clamped. In the Y3 zone, the sandwiched ingot is clamp cylinder 1
4, the clamp claw 13 opens and the lifting cylinder 17
As a result, the one line of the ingot plane has been completely placed on the belt conveyor 18, and the sheets are sequentially sent by the intermittent feeding operation of the belt conveyor, and finally the ingot receiving metal fitting 23 is on standby. Sent to the position. In this position, the sensor 2 confirms that the ingot has been sent.
With the activation of 0, the transfer cylinder 27 smoothly advances on the rail 28 and reaches a predetermined position of the chain double-dashed line position shown in FIG. Then, upon the transmission of the confirmation signal from the sensor 21, the tool 29 fixed to the tip of the piston of the cutting cylinder 22 descends and cuts the ingot into a plurality of pieces.

[0006]

Embodiments of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, a rotary table 9 capable of turning 90 degrees is provided on a trolley 5 that stands by in the Y1 zone, and an ingot 1 is stacked on the trolley table 9 in a multi-tiered manner.
0-1 ... 10-n and one block of the base plate 11 on which it is placed are placed. Then, with the transmission of the control device 26, the chain wheel 2-1 connected to the carriage drive motor 1 via a drive shaft (not shown) rotates, and the chain wheel 2 also moves.
-2 is followed by Chain 3. As a result, the rotary table 9 in the Y1 zone is transferred to the Y2 zone with the ingot 10 placed thereon, and stops at a fixed position. At this time, the ingot 10-1, ..., 10-6 is detected by the sensor 24.
If the arrangement (six in the embodiment) is the position shown in FIG. 1, that is, the feeding direction to the cutting device is proper, the lifting cylinder 17 is lowered, and first the holding plate 12 is moved to the ingot 1.
0-1 ... 10-6 The entire flat surface is pressed to maintain the flatness, and then the clamp cylinders 14-1 and 14-2 work so that the clamp claws 13-1 and 13-2 firmly ingot from both side surfaces. Hold the first stage. At this time, the pressing plate 12
And clamp claws 13-1 and 13-2 work to make ingot 1
The springs 15-1 and 15 should be set so that the step keeps a perfect plane.
-2 and the outputs of the clamp cylinders 14-1 and 14-2 are
Of course, it is properly adjusted. If a perfect plane is maintained in this way, the lift cylinder 17 rises, and the upper limit switch is operated to move the slide plate 16 to the Y3 zone by the transfer cylinder 19 while sliding. In the Y3 zone, the clamped ingot 10-1, ...
As a result of 10-6 being a sequence operation, the lifting cylinder 17 descends and is transferred onto the belt conveyor 18, and at the same time,
The clamp device is released, and then the lifting cylinder 1 again.
7 is moved up and returned to the initial standby position Y2 zone by the transfer cylinder 19, and the ingot 10-7 for the next process ...
… Become ready to clamp 10-12. However, the arrangement direction of the second stage of the sensor 24 is the ingot 10-1 of the first stage transferred to the belt conveyor 18 last time, ...
Since 10-6 is stacked like a cross, it is detected that the clamp cannot be clamped as it is, and a signal for driving the turning cylinder 6 is output to the control device 26. Sending, turning cylinder 6
Is operated, the rotary table 9 turns 90 degrees, and the clamping device can be clamped in the arranging direction, and the clamp device vertically installed by the sequence operation causes the second stage ingot 10-7 ,.
Clamp 0-12 and transfer to the next process. As described above, the turning drive device incorporated in the carriage 5 is provided by the sensor 24 provided in the vertically-arranged clamp device.
It is programmed to identify and actuate the array orientation to be clamped. As described above, the ingots 10-1, ... 10-6 placed on the belt conveyor 18
Are sequentially fed in the cutting direction by intermittent feeding of the belt conveyor 18, and when the tip 10-1 thereof is placed on the standby position of the receiving metal fitting 23, the sensor 20 works and the transfer cylinder 2
7 is activated to move the stroke S4, and the cutting cylinder 22
Is stopped in a vertical position, the piston of the cutting cylinder 22 is extended by the next operation of the sensor 21, and the tip tool 29 fixed to the tip of the piston cuts the ingot 10-1 into a plurality of pieces. Cut ingot piece 10-1
(A), (b), [in case of two divisions] or 10-1
(A), (b), (c) [in the case of three divisions] falls by its own weight. After the ingot 10-1 is cut into a plurality of pieces by the cutting device, the sensor 20 works again and the piston of the transfer cylinder 27 extends in the receiving metal fitting 23 so that the belt conveyor 18
In preparation for the next ingot 10-2 to be transferred, entering the standby position at the tip of the. FIG. 3 shows a large number of ingots (six in the example) arranged on the plane of the ingot, which are stacked high in a grid pattern. FIG. 4 shows an operation sequence in the case of clamping one row of the ingot plane. First, in FIGS. 4A and 4B, the clamp device lowers the stroke S5 and then the side face only in the state shown in FIG. Stroke S6 Operates in the clamping direction. Thus,
The ingots 10-1, ..., 10-6, which are arranged in a row in six rows, are firmly clamped and clamped, and the stroke S5 rises as shown in (d), and the next ingot 10-7 ,.
12 and the like, the sensor 24 works in the ascending limit so that the next-stage ingot 10-7, ..., 10-12 is in the same mode as the uppermost-stage ingot is sandwiched. The ingots 10 on the base plate 11 are successively transferred onto the belt conveyor 18 in the next process. 5 and 6
Indicates a swivel drive device for swiveling the rotary table 9 by 90 degrees. In the 90 degree swivel, the arm 7 is swung 90 degrees by the expansion and contraction of the swiveling cylinder 6 installed in the carriage 5 ((A) in FIG. 6). , (B) position) Since the rotary shaft 8 is fixed to this, the rotary table 9 also follows, and as a result, the base plate 11 and the ingot 10 on the rotary table 9 also move.
It will turn by an angle of 0 degree. 7 to 10 show
10-n shows a cutting device for cutting one ingot into a plurality of pieces in the ingots 10-1, ... 10-n, the action of which is the operation of the sensor 20 shown in FIGS. When the piston of the cylinder 27 contracts, it slides smoothly on the rail 28 from the end of the belt conveyor 18 and stops at a fixed position. The state diagram at that time is shown in FIG. Next, the tip of the tool 29 fixed to the piston of the cutting cylinder 22 is lowered by the transmission of the sensor 21 to cut the ingot, and its side view is shown in FIG.
FIG. 9A is a side view at the time immediately before cutting, FIG. 9B is a case of a cutting operation, and FIG. In the case of three divisions, a cutting cylinder 22 ', a tip tool 29', and a rail 28 'are added, and the receiving metal fitting 23' is shown in FIG.
It is sufficient to replace the two-divided bracket shown in (a) with the three-divided bracket shown in (b).

According to the apparatus of the present invention, as is apparent from the above description, when the ingot is charged into the melting furnace, it can be automatically charged according to the melting capacity of the melting furnace.
As a result, it is possible to reduce labor costs, improve product quality, and achieve uniformization based on unmanned operation and labor saving, and it can be expected to bring about a remarkable effect of causing a significant cost reduction of products.

[Brief description of drawings]

1 is a front view of the device of the present invention. 2 is a front view of an operation mode different from FIG. 3 is a three-dimensional view of one block in which the ingots cut by the device of the present invention are stacked in a cross beam shape. 4 (a), (b), (c), and (d) are explanatory views showing different operation modes. 5 is a front view of a trolley with a rotary table turned 90 degrees. 6 is a view taken along the line XX shown in FIG. 7 is a partial front view of the cutting device in the device of the present invention. 8 is a side view in FIG. 7 (a), (b) is an explanatory view showing a different operation mode. FIG. 9 is a side view when the ingot to be cut is divided into three in the device of the present invention. 10 is a three-dimensional view of the components shown in FIG. 8 and FIG.

[Explanation of symbols]

 1 Motor for drive truck 2-1, 2-2 Chain wheel 3 Chains 4-1 and 4-2 Hook 5 Cart 6 Swing cylinder 7 Arm 8 Swing axis 9 Rotary table 10-1, ... 10-n Ingot 11 Platform plate 12 Presser plate 13-1, 13-2 Clamp claw 14-1, 14-2 Clamp cylinder 15-1, 15-2 Spring 16 Sliding plate 17 Lifting cylinder 18 Belt conveyor 19 Transfer cylinder 20 Sensor 21 Sensor 22, 22 ' Cutting cylinder 23, 23 'Receiving metal fitting 24 Sensor 25 Belt conveyor 26 Control device 27 Transfer shilling 28, 28' Rail 29, 29 'Tip fitting

Claims (3)

[Claims] 1. When casting a metal, ingots of raw materials are elongated and several materials each having a certain size are arranged in a line in a plane (six in the embodiment). The next step is the lower step. On the other hand, they are arranged in a row in the shape of a double girder. In this way, they are stacked one after another, placed on the base plate 11 as one block, and usually stored in a warehouse or the like. When this is put into the metal melting furnace, it is transferred onto the rotary table 9 in the Y1 zone of the device of the present invention by a crane or a forklift and automatically loaded into the Y2 zone by activating the start operation button. An elevating and lowering clamp device with a sensor 24 is made to stand by in the upper part of the Y2 zone, and a swiveling cylinder 6 installed on the carriage 5 is rotated via an arm 7 and a swivel shaft 8 depending on a longitudinal direction of a single row of the ingot. The table 9 is rotated 90 degrees, and the lifting clamp device is lifted by the lifting cylinder 17 while being held in the clamp direction programmed by the control device 26, and is carried to the next process. In this way, depending on the arrangement direction of the ingots, the rotary table is set to 90 so that the clamping direction is constant.
An automatic control device characterized by having a turning device and automatic control according to a program. 2. The automatic clamping device according to claim 1,
As the ingot on the base plate 11 decreases, the stroke of the lifting cylinder 17 increases by the height programmed by the controller 26, and the maximum stroke becomes S3. In this way, the ingot is clamped one by one from the uppermost stage by the clamp device, the elevating cylinder 17 is raised, and the ingot in the state of being clamped by the signal of the ascending limit advances by the stroke S2, and the belt conveyor 18 is sent by the signal of the forward limit. After descending up and placing this ingot, the clamp claw is released. After that, the elevating cylinder 17 rises again, returns to the Y2 zone, and is in a standby state. An automatic material feeding device having such a device and having an automatic control device for automatically controlling a series of operations in accordance with a program. 3. The ingots 10-1, ... 10-6 according to claims 1 and 2 are sent forward by an intermittently operating belt conveyor 18 and the ingot 10 at the tip thereof.
Immediately after the -1 is disengaged from the belt conveyor 18, the -1 is transferred to the receiving metal fitting 23 provided at the piston tip of the transfer cylinder 27, and at the same time, the operation of the sensor 20 causes the ingot 10-1 on the receiving metal fitting 23 to stroke. S4 Further advance, it is transferred to a predetermined position in the cutting device. Next, the sensor 21 confirms that the ingot 10-1 is at the predetermined position, transmits a signal, and in response to this, the tip tool 29 fixed to the piston tip of the cutting cylinder 22 causes the piston of the cylinder 22 to move. The automatic material feeding device is characterized by having a device that lowers as it extends and cuts the ingot 10-1 into a plurality of pieces, and an automatic control device that automatically controls this according to a program.