Sand mold casting device

Abstract

The utility model relates to a sand mold casting device which comprises a sand tray, a slag separator and a hoisting and clamping mechanism, and the hoisting and clamping mechanism comprises ingot cavities which are arranged in a Sudoku array and are trapezoidal tables; the slag separator comprises a runner, a conical cavity and an inner partition plate, one side of the conical cavity is connected with the runner, the inner partition plate is arranged in the conical cavity, and the inner partition plate occupies three quarters of the upper portion in the conical cavity; a positioning plate is arranged between the lifting ring column and the lifting ring, and the positioning plate is arranged above the joint of the first lifting arm and the second lifting arm in a covering manner; a limiting column is arranged on the second clamping arm, a spline column is arranged on the first clamping arm, and an arc-shaped hook is arranged on the spline column in a sliding and sleeving mode through a spline; wherein the slag separator is arranged on one side of the sand tray frame, the runner extends to one of the ingot cavities, and the hoisting and clamping mechanism is suspended above the sand tray frame through the travelling crane; and the mold ingot can be conveniently demolded and grabbed while slag inclusion can be conveniently reduced.

Description

Technical Field

[0001] The present application relates to the technical field of sand mold casting, and in particular to a sand mold casting device. Background Art

[0002] In steel production, ferroalloy products produced through high-temperature smelting need to be cast and cooled before they can be stored for processing. The main existing casting modes include: ingot mold casting, sand mold casting, layered casting and mechanical casting, each with its own advantages and disadvantages. In the sand mold casting process, there are many factors that affect the casting production efficiency. In the actual production process, the large amount of slag included in the casting and the inconvenience of demolding the ingot seriously affect the production efficiency. This is mainly manifested in two aspects. First, during the casting process, a large amount of slag is mixed in the molten iron. Second, when demolding after casting, it is inconvenient for the lifting and demolding mechanism to grab the mold ingot with the claws. Utility Model Content

[0003] In order to solve or partially solve the problems existing in the related art, the present application provides a sand mold casting device, which can reduce slag inclusion and facilitate demolding and grasping of the mold ingot.

[0004] The present application discloses a sand mold casting device, comprising a sand tray, the sand tray comprising a sand tray frame and molding sand, wherein the sand tray frame is composed of four plates, the sand tray frame is filled with molding sand, and an ingot cavity is constructed in the molding sand; a slag separator and a lifting and clamping mechanism;

[0005] The lifting and clamping mechanism includes: a first clamping arm, a second clamping arm, a first lifting arm, a second lifting arm, a lifting ring column, and a lifting ring, wherein the first clamping arm and the second clamping arm are connected in the middle by a rotating shaft, a clamping tooth is provided at one end of the first clamping arm, and the other end is connected to the second lifting arm through a rotating shaft, a clamping tooth is provided at one end of the second lifting arm, and the other end is connected to the first lifting arm through a rotating shaft, the other end of the first lifting arm and the second clamping arm are connected by a rotating shaft, and a lifting ring column is connected to the rotating shaft, and one end of the lifting ring column is connected to the lifting ring; the ingot cavity is arranged in a nine-square grid array, and the ingot cavity is arranged as a trapezoidal platform;

[0006] The slag separator includes a flow channel, a conical cavity, and an inner partition. The flow channel is connected to one side of the conical cavity, and the inner partition is arranged in the conical cavity. The inner partition occupies the upper three-quarters of the conical cavity.

[0007] A positioning plate is provided between the lifting ring column and the lifting ring, and the positioning plate cover is provided above the connection between the first lifting arm and the second lifting arm; a limiting column is provided on the second clamping arm, and a spline column is provided on the first clamping arm, and an arc hook is provided on the spline column through the spline sliding and sleeve;

[0008] Among them, the slag separator is arranged on one side of the sand tray frame, and the flow channel extends to one of the ingot cavities, and the lifting and clamping mechanism is suspended above the sand tray frame through a crane.

[0009] Optionally, flow channels are provided between the ingot cavities.

[0010] Optionally, the inner partition is configured to be arc-shaped.

[0011] Optionally, an outer partition is provided above the inner partition, and the outer partition is located above the top plane of the conical cavity.

[0012] Optionally, the outer partition is configured to be arc-shaped, and the inner partition is configured to be arc-shaped to match the outer partition.

[0013] Optionally, the first clamping arm, the second clamping arm, the first lifting arm, and the second lifting arm are all configured to be a frame shape symmetrically arranged by two plates, a connecting plate is provided between the symmetrical plates, the second clamping arm is embedded in the first clamping arm, the second lifting arm is embedded in the first clamping arm and located above the second clamping arm, and the first lifting arm is clamped on the outside of the second clamping arm and located above the first clamping arm.

[0014] The technical solution provided by this application has the following beneficial effects:

[0015] This application speeds up the cooling time by arranging the sand tray into a nine-square grid shape, and at the same time arranges the ingot cavity into a structure that is more convenient for clamping and is clamped in conjunction with a lifting and clamping mechanism. By improving the clamping mechanism to reduce the process and intensity of manual operation, combined with the use of a slag separator, it is possible to reduce the amount of slag included in casting while facilitating grabbing and demolding, thereby increasing production efficiency.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0018] Figure 1 1 is a top view of a demoulding sand tray shown in an embodiment of the present application;

[0019] Figure 2 Schematic diagram of the structure of the demoulding sand tray ingot cavity shown in an embodiment of the present application;

[0020] Figure 3 is a cross-sectional view of a slag separator shown in an embodiment of the present application;

[0021] Figure 4 1 is a top view of a slag separator shown in an embodiment of the present application;

[0022] Figure 5Schematic diagram of the ingot lifting clamp structure shown in an embodiment of the present application;

[0023] Figure 6 1 is a top view of the ingot lifting clamp shown in an embodiment of the present application;

[0024] Reference numerals:

[0025] 1. Sand tray frame; 11. Ingot cavity; 2. Slag separator; 21. Runner; 22. Conical cavity; 23. Inner partition; 24. Outer partition; 31. First clamping arm; 32. Second clamping arm; 33. First lifting arm; 34. Second lifting arm; 35. Lifting eye column; 36. Positioning plate; 37. Lifting eye; 38. Limiting column; 39. Spline column; 310. Arc hook. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0027] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0029] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] In response to the above problems, an embodiment of the present application provides a sand mold casting device. The technical solution of the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0031] like Figure 1 、 Figure 3 and Figure 5 As shown, a sand mold casting device mainly includes three major components: a sand tray (also called a sand mold), a slag separator 2, and a lifting and clamping mechanism (or a sling). The sand tray includes a sand tray frame 1 and molding sand. The sand tray frame 1 is surrounded by four plates to form a container. The sand tray frame 1 is filled with molding sand, and an ingot cavity 11 is formed in the molding sand, thereby forming a sand mold. Since at least the mold ingot is cast, not the casting part, the sand mold does not need to be closed during sand casting and can be left open, which is convenient for the cooling zone.

[0032] The present application also includes a slag separator 2 and a lifting and clamping mechanism, wherein the lifting and clamping mechanism includes: a first clamping arm 31, a second clamping arm 32, a first lifting arm 33, a second lifting arm 34, a lifting ring column 35, and a lifting ring 37, wherein the first clamping arm 31 and the second clamping arm 32 are connected in the middle by a rotating shaft, a clamping tooth is set at one end of the first clamping arm 31, and the other end is connected to the second lifting arm 34 through a rotating shaft, a clamping tooth is set at one end of the second lifting arm 34, and the other end is connected to the first lifting arm 33 through a rotating shaft, the other end of the first lifting arm 33 and the second clamping arm 32 are connected by a rotating shaft, and a lifting ring column 35 is connected to the rotating shaft, and a lifting ring 37 is connected to one end of the lifting ring column 35.

[0033] In this way, the entire lifting and clamping mechanism forms a lever clamping mechanism. When the electric hoist lifts the lifting ring 37, the first clamping arm 31 and the second clamping arm 32 clamp the ingot and pull it out of the ingot cavity 11 under the action of the lever.

[0034] In the actual production process, there are two aspects that affect the production efficiency. One is that during the casting process, a large amount of slag is mixed in the molten iron. The other is that when demoulding after casting, it is inconvenient for the lifting and demoulding mechanism to grab the mold ingot with the clamping claws. For this reason, Figure 1 and Figure 2As shown, the present application arranges the ingot cavity 11 in a nine-square grid array, and the ingot cavity 11 is arranged as a trapezoidal platform. On the one hand, the nine-square grid array increases the contact area with the outside world, so that the ingot can be cooled faster, and the trapezoidal platform ingot cavity arrangement makes it convenient to cooperate with the lifting and clamping mechanism to clamp the ingot and demold it after cooling. The present application adopts a clamping mechanism based on the lever principle, on the one hand because the mechanism is simple and practical, low in cost and easy to operate, and on the other hand because the entire production process is in a high temperature and mobile environment, and other clamping devices are inconvenient to use.

[0035] In order to reduce the inclusion of slag in the ingot, the device is provided with a slag separator 2 during the pouring process on the sand tray. Figure 3 The slag separator 2 includes a flow channel 21, a conical cavity 22, and an inner partition 23. The flow channel 21 is connected to one side of the conical cavity 22, and the inner partition 23 is arranged in the conical cavity 22. The inner partition 23 occupies the upper three-quarters of the conical cavity 22. In this way, due to the different densities of slag and molten iron, most of them float on the surface during pouring. Therefore, before the melt in the ladle is poured into the sand tray, it is first poured into the slag separator 2. The partition in the slag separator 2 divides the melt into two parts. Since it overflows from the bottom of the conical cavity 22, a large amount of slag floats on the other side of the conical cavity 22, while the relatively pure molten iron flows into the ingot cavity 11 through the flow channel from the other side, thereby preventing a large amount of slag from directly entering the ingot.

[0036] In the actual production process, when the clamping tool is used for clamping, when the crane carries the clamping tool to the top of the ingot, due to the use of a lever clamping mechanism, the opening of the first clamping arm 31 and the second clamping arm 32 will be smaller than the length and width of the ingot. When the clamping mechanism is lowered, it cannot directly clamp the ingot, but requires manual opening of the lifting arm. Since the entire clamping mechanism is made of metal, manual operation is extremely time-consuming and labor-intensive. Moreover, when the crane lowers the clamping mechanism, the lifting ring 37 can easily rotate to the bottom of the rotating shaft, allowing the lifting chain to easily get stuck in the first lifting arm 33 or the second lifting arm 34. If it is connected by a hook, it will become unhooked. When lifting again, it is necessary to manually flip the lifting ring column 35 upwards. These manual operations greatly affect the production speed and reduce production efficiency. Therefore, if Figure 5 and Figure 6As shown, in this application, a positioning plate 36 is provided between the lifting eye post 35 and the lifting eye 37. The positioning plate 36 covers the connection between the first lifting arm 33 and the second lifting arm 34. This ensures that the lifting eye 37 is consistently located above the first lifting arm 33 or the second lifting arm 34 without tilting. A limiting post 38 is provided on the second clamping arm 32, and a spline post 39 is provided on the first clamping arm 31. An arc-shaped hook 310 is provided on the spline post 39 via a spline and slides thereon. In this way, when the clamping mechanism is lifted, the arc-shaped hook 310 hooks the limit column 38 to prevent the second clamping arm 32 from closing with the first clamping arm 31. When the clamping mechanism clamps to the top of the ingot and puts it down, the arc-shaped hook 310 can be pulled out for normal use. When the ingot is lifted to the placement position, after putting the ingot down, the arc-shaped hook 310 can be inserted again to limit the second clamping arm 32 from closing with the first clamping arm 31. In this way, the entire operation only requires plugging and unplugging, which reduces the number of processes and operating intensity compared to the original operation, thereby improving work efficiency.

[0037] In the present application, in order to facilitate casting, the slag separator 2 is arranged on one side of the sand tray frame 1, and the flow channel 21 extends to one of the ingot cavities 11, and the lifting and clamping mechanism is suspended above the sand tray frame 1 by a crane.

[0038] In the present application, the sand tray is arranged into a nine-square grid shape to speed up the cooling time, and the ingot cavity is arranged into a structure that is more convenient for clamping and is clamped in conjunction with a lifting and clamping mechanism. By improving the clamping mechanism to reduce the process and intensity of manual operation, combined with the use of a slag separator 2, the amount of slag included in the casting is reduced while facilitating grabbing and demolding, thereby increasing production efficiency.

[0039] In one embodiment, flow channels are provided between the ingot cavities 11 to facilitate the melt to flow quickly into each ingot cavity 11 .

[0040] In one embodiment, the inner partition 23 is configured to be arc-shaped to facilitate melt flow.

[0041] In one embodiment, Figure 3 As shown, an outer baffle 24 is provided above the inner baffle 23 , and the outer baffle 24 is located above the top plane of the conical cavity 22 , so as to prevent the melt from carrying slag and splashing to the other side during casting.

[0042] In one embodiment, Figure 4 As shown, the outer partition 24 is configured to be arc-shaped, and the inner partition 23 is configured to be arc-shaped to match the outer partition 24, so that there is more space to accommodate the filter residue.

[0043] In one embodiment, Figure 6As shown, to more stably clamp the ingot and increase the width of the clamping mechanism, the first clamping arm 31, the second clamping arm 32, the first lifting arm 33, and the second lifting arm 34 are each configured as a frame consisting of two symmetrical plates, with a connecting plate disposed between the symmetrical plates. The second clamping arm 32 is embedded within the first clamping arm 31, the second lifting arm 34 is embedded within the first clamping arm 31 and positioned above the second clamping arm 32, and the first lifting arm 33 is clamped outside the second clamping arm 32 and positioned above the first clamping arm 31. This increases the width without reducing the size of the various components of the clamping mechanism, maintaining the overall strength of the clamping mechanism.

[0044] Finally, it should be noted that, in this document, relationships such as first and second, etc., are used solely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms include, comprise, or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0046] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A sand mold casting device, comprising a sand tray, wherein the sand tray comprises a sand tray frame (1) and molding sand, in, The sand tray frame (1) is formed by surrounding four plates, the sand tray frame (1) is filled with the molding sand, and an ingot cavity (11) is constructed in the molding sand; and Slag separator (2) and lifting and clamping mechanism The lifting clamping mechanism comprises: a first clamping arm (31), a second clamping arm (32), a first lifting arm (33), a second lifting arm (34), a lifting ring column (35), and a lifting ring (37), wherein the first clamping arm (31) and the second clamping arm (32) are connected at the middle by a rotating shaft, a clamping tooth is provided at one end of the first clamping arm (31), and the other end is connected to the second lifting arm (34) by a rotating shaft, a clamping tooth is provided at one end of the second lifting arm (34), and the other end is connected to the first lifting arm (33) by a rotating shaft, and the other end of the first lifting arm (33) and the second clamping arm (32) are connected by a rotating shaft, and the lifting ring column (35) is connected to the rotating shaft, and one end of the lifting ring column (35) is connected to the lifting ring (37); characterized in that: The ingot cavity (11) is arranged in a nine-square grid array, and the ingot cavity (11) is arranged as a trapezoidal platform; The slag separator (2) comprises a flow channel (21), a conical cavity (22), and an inner partition (23); one side of the conical cavity (22) is connected to the flow channel (21); the inner partition (23) is arranged in the conical cavity (22); the inner partition (23) occupies three quarters of the upper portion of the conical cavity (22); A positioning plate (36) is provided between the lifting ring column (35) and the lifting ring (37), and the positioning plate (36) is provided above the connection between the first lifting arm (33) and the second lifting arm (34); a limiting column (38) is provided on the second clamping arm (32), and a spline column (39) is provided on the first clamping arm (31), and an arc hook (310) is provided on the spline column (39) through spline sliding and sleeve connection; The slag separator (2) is arranged on one side of the sand tray frame (1), and the flow channel (21) extends to one of the ingot cavities (11), and the lifting and clamping mechanism is suspended above the sand tray frame (1) by a crane.

2. A sand mold casting device according to claim 1, characterized in that: A flow channel is provided between the ingot cavities (11).

3. A sand mold casting device according to claim 1, characterized in that: The inner partition (23) is configured to be arc-shaped.

4. The sand mold casting device according to claim 1, characterized in that: An outer partition (24) is provided above the inner partition (23), and the outer partition (24) is located above the top plane of the conical cavity (22).

5. A sand mold casting device according to claim 4, characterized in that: The outer partition (24) is configured to be arc-shaped, and the inner partition (23) is configured to be arc-shaped to match the outer partition (24).

6. A sand mold casting device according to claim 4, characterized in that: The first clamping arm (31), the second clamping arm (32), the first lifting arm (33), and the second lifting arm (34) are all arranged in a frame shape symmetrically arranged by two plates, and a connecting plate is arranged between the symmetrical plates. The second clamping arm (32) is embedded in the first clamping arm (31), the second lifting arm (34) is embedded in the first clamping arm (31) and is located above the second clamping arm (32), and the first lifting arm (33) is clamped on the outside of the second clamping arm (32) and is located above the first clamping arm (31).

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