Multi-stream metal casting production line

Abstract

The utility model provides a multi-stream metal casting production line. The multi-stream metal casting production line comprises a main melting furnace body, an extraction device, a transfer device, a guide-in device and a casting furnace body; the extraction device comprises a lifting rod and an extraction barrel, a liquid level height sensor is installed on the extraction barrel, and a heat preservation assembly is arranged on the outer wall of the extraction barrel; a first lifting mechanism is installed on the lifting rod, a material passing opening is formed in the bottom of the extraction barrel, and a plugging head is arranged corresponding to the material passing opening and driven by a second lifting mechanism; the transferring device comprises a support, a sliding rail is installed on the support, the extracting device is installed on the sliding rail in a sliding mode, and a pushing mechanism is arranged on the sliding rail. The guiding-in device comprises a material guiding groove, a liquid guiding nozzle is arranged at the bottom of the material guiding groove, and the lower end of the liquid guiding nozzle extends into the casting furnace body. The main melting furnace body is used for melting metal in a concentrated mode, the requirement that each furnace body needs molten metal melting and heat preservation in the past is effectively reduced, and due to the totally-closed furnace body design, heat loss is reduced, and pollution emission is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of metal casting, and particularly relates to a multi-flow metal casting production line. BACKGROUND

[0002] In common metal casting technology, a solid-liquid double metal composite casting process basically adopts a core work frequency induction heating furnace to melt metal, and then obtains single metal or double metal composite wire through a crystallization cooling process. The metal casting process belongs to a high energy consumption and high emission enterprise. Under the background of advocating energy saving and environmental protection and double carbon standard, it is important to develop a new production line and production process. At the same time, the market competition of the metal casting industry is fierce, and the requirements for product cost and safe operation of enterprises are increasing day by day. In the prior art, a core work frequency induction furnace is used for production, which mainly melts the corresponding metal melting groove at the bottom of the furnace body through electromagnetic induction, and then gradually melts the metal above the furnace body. This kind of way is easy to cause the melting groove to be burned off in actual operation, the volume of the furnace body is large, the energy consumption is high, the heating efficiency is low, and there are safety hazards in operation. In actual application, a single furnace body is often matched with a single furnace body work frequency induction device. In order to ensure the melting and corresponding production efficiency, the furnace cavity structure of the furnace body is often designed to be large, and the metal liquid capacity in the furnace body is large, so that a large amount of energy is used for heat preservation of the metal liquid, causing waste of energy. SUMMARY

[0003] Therefore, the application aims to overcome the defects in the prior art and provide a multi-flow metal casting production line.

[0004] To achieve the above-mentioned purpose, the technical scheme of the application is as follows:

[0005] A multi-flow metal casting production line, comprising a main melting furnace body, an extraction device, a transfer device, a guide device and casting furnace bodies arranged on both sides of the main melting furnace body; the extraction device comprises a lifting rod and an extraction cylinder, a liquid level height sensor is installed on the extraction cylinder, and a heat preservation assembly is arranged on the outer wall of the extraction cylinder; a first lifting mechanism is installed on the lifting rod, a material passing port is arranged at the bottom of the extraction cylinder, a plugging head is arranged corresponding to the material passing port, and the plugging head is driven by a second lifting mechanism to realize height position adjustment; the transfer device comprises a support, a sliding rail is installed on the support, the extraction device is slidingly installed on the sliding rail, and a propelling mechanism for driving the first lifting mechanism to move is arranged on the sliding rail or the lifting device; the guide device comprises guide grooves installed corresponding to both sides of the extraction device, a liquid guide nozzle is arranged at the bottom of each casting furnace body corresponding to the guide groove, and the lower end of the liquid guide nozzle extends into the casting furnace body.

[0006] Further, the first lifting mechanism is slidingly installed on the sliding rail.

[0007] Further, the first lifting mechanism comprises an electric push rod or a hydraulic push rod.

[0008] Further, the second lifting mechanism comprises an electric push rod or a hydraulic push rod.

[0009] Further, the heat preservation assembly comprises a high-frequency heating induction coil or an infrared heat inductor.

[0010] Further, the material guide groove is in a U-shaped cross section.

[0011] Further, each of the casting furnace bodies is provided with an immersed heating device.

[0012] Further, the material guide groove is arranged below the extraction cylinder.

[0013] Compared with the prior art, the application has the following advantages:

[0014] The application has a reasonable structure design, the first lifting mechanism can realize the lifting of the extraction cylinder, the second lifting mechanism can realize the height adjustment of the blocking head, in the process of quantitative extraction of the metal liquid, the extraction cylinder can realize the accurate measurement of the metal liquid, and the pushing mechanism is used to drive the extraction device to move above the casting furnace body, thereby realizing the feeding. The production line adopts the main melting furnace body to concentrate the metal melting, effectively reduces the requirement of metal liquid melting and heat preservation for each furnace body in the past, reduces the equipment investment of the enterprise, at the same time, greatly improves the energy utilization rate of the equipment, and the whole production line adopts the fully-closed furnace body design, reduces the heat loss, and reduces the pollution emission. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings constituting a part of the application are used to provide a further understanding of the application, the schematic embodiment of the application and the description thereof are used to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0016] Figure 1 It is a structural schematic diagram of the application;

[0017] Figure 2 It is a left view of the application;

[0018] Figure 3 It is a schematic diagram of the pushing mechanism part in the application;

[0019] Figure 4 It is Figure 1 a schematic diagram of the extraction device part in the application;

[0020] Figure 5 It is Figure 4 a sectional view in the A-A direction of the application;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the application;

[0022] Figure 7 A schematic view of the extraction device in the present invention;

[0023] Figure 8 A Figure 7 A sectional view in the direction of B-B;

[0024] Figure 9 A schematic view of the extraction device in the present invention. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present invention and the features in the embodiments can be combined with each other without conflict.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0027] In the description of the present invention, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood through specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0029] A multi-stream metal casting production line, such as Figures 1 to 9As shown, including the main melting furnace body 1, extraction device 2, transfer device 4, import device 5 and corresponding to the two sides of the main melting furnace body arranged casting furnace body 6, casting furnace body in the main melting furnace body both sides in a line; extraction device includes lifting rod 7 and extraction cylinder 8, extraction cylinder upper end is open, liquid level sensor is installed on the extraction cylinder, the outer wall of the extraction cylinder is provided with heat preservation assembly; liquid level sensor real-time sensing the height of the liquid in the bucket, and the capacity of the liquid is accurately calculated through the computer PLC. The lifting rod is provided with a first lifting mechanism 9, and the bottom of the extraction cylinder is provided with a material port 10. A blocking head 11 is arranged corresponding to the material port, and the blocking head is driven by a second lifting mechanism 12 to adjust the height position.

[0030] When the set extraction liquid capacity is reached, the PLC will control the blocking head to block the bottom inlet, ensuring that the amount of liquid extracted each time is accurately controllable. The material port is eccentrically arranged on the bottom plate of the extraction cylinder, and the material port is provided with an extension part 3 extending downward, which increases the length of the material port and facilitates the alignment of the material port with the liquid guide nozzle to achieve precise unloading.

[0031] The transfer device includes a bracket 14, a sliding rail 15 is installed on the bracket, and the extraction device is slidingly installed on the sliding rail. A propulsion mechanism 16 is arranged on the sliding rail or the lifting device for driving the first lifting mechanism to move. Limiting structures are arranged at both ends of the sliding rail to prevent the propulsion mechanism from moving the extraction device out of position. The import device includes guide grooves 17 installed corresponding to both sides of the extraction device, and each casting furnace body is provided with a liquid guide nozzle 18 at the bottom of the guide groove. The upper end of the liquid guide nozzle communicates with the guide groove, and the lower end extends to the casting furnace body.

[0032] As an example, the cross section of the guide groove is U-shaped, the guide groove is made of stainless steel, the inner wall is protected by heat-insulating refractory mortar, the guide groove is arranged below the extraction cylinder, and the lower part of the extraction cylinder is in the guide groove. Generally, more than 1 / 4 of the height of the extraction cylinder is immersed in the guide groove, so that the extraction cylinder can always run in the safe channel formed by the guide groove. Even if the metal liquid leaks, the metal liquid will only stay in the U-shaped guide groove and will not leak to the outside, reducing the risk of operation.

[0033] As an example, the propulsion mechanism includes a drive motor 20 arranged on the lifting rod, and a drive seat 19 is arranged on the lifting rod corresponding to the sliding rail. The drive motor is installed on the drive seat, and the drive motor drives the roller 21 in the drive seat to rotate along the guide groove, so that the extraction device moves along the guide groove. Of course, those skilled in the art can also use other conventional technical means to design the propulsion mechanism, as long as the propulsion mechanism can drive the lifting device to move along the guide groove.

[0034] In the present application, the lifting mechanism is realized by screw or electric push (pull) mode to realize the action of pressing down and extracting. As an example, the first lifting mechanism is slidingly installed on the slide rail. The first lifting mechanism includes an electric push rod or a hydraulic push rod. The second lifting mechanism includes an electric push rod or a hydraulic push rod. It should be pointed out that the first lifting mechanism and the second lifting mechanism are electrically connected with the PLC, and respectively receive the PLC instruction to perform the action of elongation or contraction. The PLC control mode improves the automation degree and production efficiency.

[0035] In addition, the depth of the extraction cylinder immersed in the zinc liquid is set by the PLC to determine the quantitative extraction each time. The metal liquid enters the barrel through the overflow port at the bottom of the extraction cylinder, reaches the required amount, and then the overflow port is closed by the second lifting mechanism driving the plugging head. Then the extraction device lifts the extraction cylinder upward to complete the liquid taking.

[0036] Usually, the lifting rod is welded and fixed with the connecting claw, and the connecting claw is welded and fixed with the extraction cylinder. In an alternative embodiment, the connecting claw includes a base frame 13, and a plurality of claw bodies 23 are arranged at the lower part of the base frame, and each claw body is welded and fixed to the outer wall of the extraction cylinder. The lifting rod is arranged at the center of the base frame, and the second lifting mechanism and the plugging head are eccentrically arranged and are located away from the lifting rod to avoid interference between structural members.

[0037] The heat preservation assembly includes a high-frequency heating induction coil or an infrared heat sensor, which can heat and preserve the metal liquid and the extraction barrel in real time, ensuring that the temperature of the metal liquid remains within the required range during extraction and transfer. Usually, the lifting rod is welded and fixed with the connecting claw, and the connecting claw is welded and fixed with the extraction cylinder.

[0038] The main melting furnace body adopts a coreless induction furnace to realize centralized melting of metal. The coreless induction furnace has the characteristics of high induction heat efficiency and safety and environmental protection. In addition, the metal liquid inlet and outlet of the main melting furnace body adopts an automatic cover closing design during normal operation, which can achieve the purposes of heat preservation and reducing pollution emission. As an example, there is an infrared sensor and a pneumatic sliding block at the opening of the furnace body. When the metal extraction barrel or the zinc block is close, the pneumatic sliding block slides and translates to open the furnace cover. When the zinc extraction or zinc addition is completed, the pneumatic sliding block automatically closes to close the furnace opening.

[0039] The inner core, intermediate layer and outer shell of the casting furnace body are made of heat-conducting materials, the intermediate layer is a layer of ceramic fiber heat-conducting material wrapped outside the inner core, and the outer shell is a steel shell outside the intermediate layer. An immersion heating device is arranged in the furnace body to realize heat preservation and heating of the metal liquid. As an example, the immersion heating device includes an electric heating rod. Immersion heating can achieve high heating efficiency, and the casting furnace body is fully enclosed, which can effectively reduce heat loss and pollution emission above the furnace opening, and achieve the purposes of high efficiency and environmental protection.

[0040] When the multi-flow metal casting production line is applied to casting production, the first lifting mechanism can realize the lifting of the extraction cylinder, and the second lifting mechanism can realize the height adjustment of the blocking head, thereby realizing the blocking or opening of the material passage. In the process of quantitative extraction of metal liquid, the extraction cylinder can realize accurate metering of the metal liquid. The heat preservation assembly arranged on the extraction cylinder can heat and preserve the metal liquid and the extraction cylinder in real time, so as to ensure that the temperature of the metal liquid is always maintained within the required range during extraction and transportation. The steps of casting production by applying the multi-flow metal casting production line are as follows:

[0041] S1, a row of casting furnace bodies is arranged on both sides of the main melting furnace body. Usually, the casting furnace bodies on both sides of the main melting furnace body are arranged in the length direction of the slide rail.

[0042] S2, the metal material to be poured is concentrated and melted into a liquid state by the main melting furnace body.

[0043] S3, the extraction device is moved above the main melting furnace by the PLC-controlled propulsion mechanism, and then the metal liquid is extracted in the main melting furnace by the extraction device. The method of extracting the metal liquid is as follows: first, the extraction cylinder is lowered by the first lifting mechanism, so that the extraction cylinder is immersed below the liquid level of the main melting furnace body. When the metal liquid in the extraction cylinder reaches the required capacity, the blocking head is moved downward by the second lifting mechanism, so that the blocking head blocks the material passage on the extraction cylinder. Finally, the extraction cylinder is lifted upward by the first lifting mechanism.

[0044] S4, the extraction device is moved above the casting furnace body by the PLC-controlled propulsion mechanism. The propulsion mechanism realizes positioning by the position sensor installed above the casting furnace body, so as to ensure that the extraction device can accurately hover above the casting furnace body.

[0045] S5, the extraction cylinder is lowered by the first lifting mechanism, so that the material passage at the lower end of the extraction cylinder is aligned with the liquid guide nozzle above the casting furnace body. Then, the blocking head is moved upward by the second lifting mechanism, so that the metal liquid in the extraction cylinder flows into the liquid guide nozzle through the material passage, and then the metal liquid is poured into the casting furnace body.

[0046] S6, repeat the above steps to complete the pouring of all casting furnace bodies.

[0047] The application has reasonable structure design, the first lifting mechanism can realize lifting of the extraction cylinder, the second lifting mechanism can realize height adjustment of the blocking head, in the metal liquid quantitative extraction process, the metal liquid can be accurately measured by using the extraction cylinder, and the extraction device is driven to move above the casting furnace body by the advancing mechanism, and then the feeding is realized. The production line adopts the main melting furnace body to centrally melt the metal, effectively reduces the requirement of metal liquid melting and heat preservation for each furnace body in the past, reduces the equipment investment of the enterprise, greatly improves the energy utilization rate of the equipment, and the whole production line adopts the fully closed furnace body design, reduces the heat loss and reduces the pollution emission. In the PLC control scheme, the automatic metal liquid extraction, transfer and feeding are realized, the automation degree is high, the labor demand is effectively reduced, and the effect of reducing cost and increasing benefit is realized for the running enterprise.

[0048] The above only describes the preferred embodiments of the application, and is not used to limit the application, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A multiple stream metal casting production line characterized by: The main melting furnace body, the extraction device, the transfer device, the introduction device and the casting furnace body arranged on both sides of the main melting furnace body are included; the extraction device includes a lifting rod and an extraction cylinder, a liquid level sensor is installed on the extraction cylinder, and a heat preservation assembly is arranged on the outer wall of the extraction cylinder; a first lifting mechanism is installed on the lifting rod, a material passing port is arranged at the bottom of the extraction cylinder, a block head is arranged corresponding to the material passing port, the block head is driven by a second lifting mechanism to adjust the height position; the transfer device includes a support, a sliding rail is installed on the support, the extraction device is slidingly installed on the sliding rail, and a propelling mechanism for driving the first lifting mechanism to move is arranged on the sliding rail or the lifting device; the introduction device includes a material guide groove installed corresponding to both sides of the extraction device, a liquid guide nozzle is arranged at the bottom of the material guide groove corresponding to each casting furnace body, and the lower end of the liquid guide nozzle extends into the casting furnace body.

2. A multiple stream metal casting production line according to claim 1, characterized in that: The first lifting mechanism is slidingly installed on the sliding rail.

3. A multiple stream metal casting production line according to claim 1, characterized in that: The first lifting mechanism includes an electric push rod or a hydraulic push rod.

4. A multiple stream metal casting production line according to claim 1, characterized in that: The second lifting mechanism includes an electric push rod or a hydraulic push rod.

5. A multiple stream metal casting production line according to claim 1, characterized in that: The heat preservation assembly includes a high-frequency heating induction coil or an infrared heat sensor.

6. A multiple stream metal casting production line according to claim 1, characterized in that: The cross section of the material guide groove is in a U shape.

7. A multiple stream metal casting production line according to claim 1, characterized in that: An immersion heating device is arranged in each casting furnace body.

8. A multiple stream metal casting production line according to claim 1, characterized in that: The material guide groove is arranged below the extraction cylinder.

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