Automatic feeding device of melting furnace

Abstract

The invention discloses an automatic feeding device of a melting furnace. The automatic feeding device mainly comprises a sliding rail device, a power driving system, a material blocking and distributing device and customized blanks. The sliding rail device comprises a trapezoidal connecting block, a sliding rail is fixed to the inclined face of the trapezoidal connecting block, a mounting plate is arranged on the plane corresponding to the inclined face and used for mounting a suspender driver, and an air cylinder is mounted on the side face of the mounting plate. The material blocking and distributing device is provided with a material blocking rod and a material distributing rod which are staggered from each other, is connected with an air cylinder shaft through two sliding holes in a trapezoidal connecting block, and is pushed by an air cylinder to do reciprocating rectilinear motion, so that the material blocking and distributing functions are realized; blank sets are hung on the sliding rail and blocked by a blocking rod of the material blocking and distributing device, during starting, the air cylinder pushes the material blocking and distributing device, the material blocking rod retreats, the material distributing rod enters and blocks the blank sets behind, the blanks at the foremost end slide into the lifting hook from the sliding rail under the action of gravity, and the suspender driver gradually feeds the blanks into the melting furnace under the control of the controller. The automatic blank conveying device can be installed on the die-casting machine, automatically conveys blanks to the melting furnace, is simple in structure and stable in operation, can preheat the blanks, and saves energy.

Description

Technical Field

[0001] The invention belongs to a feeding device, and in particular relates to an automatic feeding device which can be used for a melting furnace on a die-casting machine. Background Art

[0002] The die-casting machine is a machine that uses low-melting-point non-ferrous metals such as zinc, aluminum, copper, and lead as raw materials. It die-casts molten metal into metal parts under a certain process. The die-casting machine itself is equipped with a melting furnace. During the die-casting production process, the molten metal in the melting furnace will be continuously consumed. How to feed the billet into the melting furnace to replenish the consumed molten metal while ensuring the temperature of the melting furnace is stable involves the issue of how to load the materials.

[0003] The Chinese patent (patent number: 2007101636368) discloses such a solution: including a frame, a power transmission system, and a billet pusher assembly, wherein the billet pusher assembly includes a pusher seat with a supporting pulley, a power device is arranged at the rear edge of the pusher seat, the front end of the power device is a one-way transmission mechanism driven by the power device, the one-way transmission mechanism is connected to a driving rod, and an ejector controlled by an electromagnetic switch and a lifting weight block lifted and lowered by a pulley and a pulley wire rope are arranged above the front edge of the pusher seat. The composition mechanism of this solution is relatively complex, occupies a large area, has a high failure rate, and is difficult to operate and maintain; for example, when a failure occurs, the feeder needs to be moved away from the melting furnace for maintenance, which affects the continuity of die-casting production; for another example, since it is installed on the ground, it is easy to be splashed by molten metal liquid, causing the feeder to fail. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned technology and provide an automatic feeding device for a melting furnace which has a simple structure, a small size, does not occupy ground space, is easy to operate, runs stably, saves energy, and has low manufacturing and use costs.

[0005] The technical solution adopted by the present invention to solve the technical problem is: the automatic feeding device of the melting furnace mainly comprises a slide rail device, a power drive system, a material blocking and dividing device, and customized blanks.

[0006] The present invention is described in detail below in conjunction with the accompanying drawings; generally, the automatic feeding device of the melting furnace is installed above the melting furnace of the die-casting machine, and the installation method is selected according to the different models of the die-casting machine. In addition, the present invention mainly relates to the mechanical part of the feeding device, but the working process involves an information processing device, and the installation method is not illustrated in the schematic diagram of the present invention.

[0007] like Figure 1 , 2, 3, are schematic diagrams of the present invention from the overall, partial and different perspectives, which can better illustrate the overall structure.

[0008] The suspension rod 10 is connected to the driver 11 through the through hole on the mounting plate 20 and can move up and down. A hook 12 is provided under the suspension rod 10, and the hook 12 is used to suspend the blank 60. When the blank 60 is lowered to a certain height, the blank 60 enters the melting furnace 70 so that the blank 60 is melted. A rack 13 is provided in the middle of the suspension rod 10, which is used to cooperate with the driver 11 to move the suspension rod 10 up and down.

[0009] The driver 11 is a motor with a gear box, and is installed on the mounting plate 30, wherein the gear in the gear box meshes with the gear 12 on the suspension rod 10. When the motor is working, the suspension rod 10 can be driven to move up and down through the through hole of the mounting plate 20, but the height of the mounting plate 30 remains unchanged, so that when the blank 60 on the hook 12 is lowered to the melting furnace 70, the height of other blanks 60 remains unchanged, and other blanks 60 can also be preheated, saving energy costs. At the same time, the use of the suspension rod 10 is simple, safe and reliable.

[0010] A slide rail device is provided below the mounting plate 20 , and a material dividing and blocking device installed thereon transports the blanks 60 to the hook 12 one by one.

[0011] A position sensor 90 is disposed below the mounting plate 30 for obtaining the position of the hook 12 .

[0012] The dissolving pool 70 is provided with a liquid level sensor 71 for obtaining the height of the liquid level in the dissolving pool 70 .

[0013] The blank 60 is in the shape of a long strip, and has an open ring 61 at the upper portion. The thickness of the open ring 61 is thinner than the blank 50 body, and a gap is formed with the blank arranged behind it.

[0014] The top surface of the trapezoidal block 40 is fixed to the mounting plate 20 by bolts, and a slide rail 42 is arranged on the inclined surface thereof, so the slide rail 42 is also inclined; the lower end of the slide rail 42 is an outer inclined surface 43, and the blank 60 is suspended on the outer inclined surface 43 through an open ring 61, and the outer inclined surface 43 allows the blank 60 to slide down along the outer inclined surface 43 due to gravity. The lowermost end of the outer inclined surface 43 is directly opposite to the hook 12 of the suspension rod 10 at the initial position, so that the blank 60 can just slide down through the open ring 61 and be suspended on the hook 12 under the action of its own weight.

[0015] A left baffle 51 and a right baffle 54 are respectively provided on both sides of the trapezoidal block 40, which are connected together by a connecting shaft 50 through the sliding hole 41 on the trapezoidal block 40 and can slide therein; a blocking rod 52 and a dividing rod 53 are respectively provided at the lower parts of the left baffle 51 and the right baffle 54, which are staggered and can just clamp a piece of blank 60; before starting work, the blocking rod 53 blocks the middle of the first blank to prevent the blank 60 from sliding down, and when the left and right baffles move to the left together, the dividing rod 53 moves to the left through the open rings 61 on the upper parts of the two blanks 60, and the blocking rod 52 also moves gradually to the left until the blocking rod 52 is out of contact with the blank 60, and the blank 60 slides down due to its own weight, and its open ring 61 slides into the hook 11, and the dividing rod 53 blocks the sliding of the blank behind.

[0016] A cylinder 30 is provided below the mounting plate, and the cylinder shaft 31 is connected with a nut through a hole on the left baffle plate 51. The cylinder 30 can drive the material blocking and dividing device to move back and forth in a straight line left and right direction.

[0017] Figure 2 3 is a schematic diagram of the present invention after assembly from front and back perspectives. The cylinder 30 drives the left and right baffles to move back and forth, and drives the material blocking rod 52 and the material dividing rod 53 to control the billet 60 to slide down one at a time into the hook 12, thereby completing the work of feeding the melting furnace 70. The structure has few components, a simple structure, no need for a special billet box, and a reduced volume. It basically adopts a fixed connection method, so it can bear a large weight, has few connection points, and thus works reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is an assembly view of one side of the present invention;

[0020] Figure 3 is an assembly view of the other side of the present invention;

[0021] Figure 4 It is a general schematic diagram of the present invention in an initial state;

[0022] Figure 5 It is a general schematic diagram of the present invention in a state where the blank is slid into the hook;

[0023] Figure 6 It is a general schematic diagram of the state in which the blank of the present invention gradually enters the melting furnace.

[0024] Explanation of symbols: 10-suspender rod, 11-driver, 12-hook, 13-suspender rod rack, 20-mounting plate, 30-cylinder, 31-cylinder shaft, 40-trapezoidal connecting block, 41-slide hole, 42-slide rail, 43-external slope, 50-connecting shaft, 51-left baffle plate, 52-blocking rod, 53-dividing rod, 54-right baffle plate, 60-blank, 61-blank opening ring, 70-melting furnace, 71-liquid level sensor, 80-blank sensor, 90-suspender rod hook position sensor. DETAILED DESCRIPTION

[0025] Combination Figure 4 , 5, 6, the working process of the present invention is described in detail below.

[0026] exist Figures 4 to 6 In the figure, a schematic diagram of the automatic feeding device of the melting furnace feeding the melting furnace after installation is completed is shown; the blank 60 is hung on the hook 12 to feed the melting furnace 70, and the waiting blank 60 is hung on the slide rail 42. The liquid level sensor 71, the hook position sensor 90 and the blank sensor 80 detect the position signals of each component in real time and transmit these signals to the controller (which is not the subject of the present invention, so it is only used as an implementation application description here), and the controller realizes the coordinated action of each component and mechanism of the system according to the pre-programmed program.

[0027] Figure 4 It shows a schematic diagram of the automatic feeding device of the melting furnace in the initial position, the blocking and dividing device is in the right position, the blocking rod 52 blocks the waiting blank 60, the hook is connected to the slide rail, and the position sensor 90 transmits this signal to the controller.

[0028] like Figure 5 As shown, the start button is pressed, and the cylinder 30 pulls the material blocking and dividing device back to the left. While the blocking rod 52 withdraws, the dividing rod 53 enters from the gap formed by the open ring 61 of the blank 60 to block the blank 60 behind. The front end of the blank is no longer blocked by the blocking rod 52 and slides into the hook 12 by its own gravity.

[0029] like Figure 6As shown, the billet position sensor 80 transmits the signal that the billet 60 has been hung on the hook to the controller, and the driver 11 drives the boom 10 to descend. At the same time, the cylinder 30 pushes the material blocking and dividing device to move right, the dividing rod 53 withdraws, and the material blocking rod 52 enters and blocks the billet group that slides down, preparing for the next cycle; the driver 11 gradually sends the billet 60 into the melting furnace 70 according to the signal of the liquid level sensor 71 until the boom descends to the set height. At this time, the lower part of the billet opening ring 61 is immersed in the liquid surface while the bottom of the hook 12 still maintains a certain distance from the liquid surface to prevent the hook from contacting the metal liquid surface and getting stained with the metal liquid, and stays at this position for a set time to ensure that the opening ring 61 is deformed by heat and falls off the hook. Thereafter, the boom 10 is driven back to the initial position by the driver 11 to start the next cycle.

[0030] The above description is only used to illustrate the present invention and is not limited to the contents shown and described herein. Any changes in form, component arrangement and structural details made in accordance with the creativity and characteristics of the present invention should fall within the scope of the rights requested for protection by the present invention.

Claims

1. An automatic feeding device for a melting furnace, which mainly includes a slide rail device, a power drive system, a material blocking and dividing device, and a customized blank. Its characteristics are: The slide rail device is composed of a trapezoidal connecting block, a slide rail and a mounting plate. The slide rail is fixed on the inclined surface of the trapezoidal connecting block and is used to suspend the blank. The mounting plate is fixed on the upper part of the trapezoidal connecting block. The trapezoidal connecting block has two sliding holes, and the connecting shaft of the material blocking and dividing device passes through the sliding holes to make left and right linear motion.

2. The automatic feeding device for a melting furnace according to claim 1, characterized in that: The power drive system consists of a boom driver installed on the upper part of the slide rail device and a cylinder installed on the side of the slide rail device. The boom driver drives the boom to move up and down. The boom moves downward to allow the billet to gradually enter the melting furnace until the billet is completely melted, and then moves upward back to the initial position to receive the next billet to slide into the hook. The material blocking and dividing device moves left and right in a straight line under the push of the cylinder to realize the functions of material blocking and dividing.

3. The automatic feeding device for a melting furnace according to claim 1 or 2, characterized in that: The material blocking and dividing device consists of two connecting shafts passing through the sliding holes of the trapezoidal connecting block to fix the left and right baffles together. A blocking rod is fixed to the lower part of the left baffle, and a dividing rod is fixed to the right baffle. The blocking rod and the dividing rod are mutually offset in space.

4. The automatic feeding device for a melting furnace according to claim 1 is characterized in that: The customized blank has an open ring at one end for hanging on the slide rail and the hook. The thickness of the open ring is thinner than the blank body, forming a gap with the blank arranged behind. At the same time, the open ring part of the blank is easily deformed by heat after entering the liquid surface of the melting furnace, and the ring mouth opens and falls off the hook.

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