Cutting edge forming mechanism for container corner fitting machining die

Abstract

The utility model discloses a cutting edge forming mechanism for a container corner fitting machining mold, which comprises a pouring material guide channel, a cutting edge forming mechanism and a cutting edge forming mechanism, wherein the pouring material guide channel is arranged between a casting head and a forming cavity of a mold sand shell in a communicating manner; the storage groove is formed in the mold sand shell on the lower side of the pouring material guide channel; the forming convex edge is installed in the containing groove in a lifting mode, and a plurality of corresponding spiral springs are distributed in the containing groove at intervals; the spring limiting mechanism comprises a set of compression plates arranged at the upper end and the lower end of the spiral spring, and the centers of the compression plates are connected through corresponding metal wires; the spiral spring is fixed between the compression plates in an extruded state, the forming protruding edge is embedded in the containing groove, and the bottom face of the forming protruding edge abuts against the compression plate located on the upper portion. According to the utility model, on the premise of not causing excessive influence on the circulation of molten steel, the forming convex edge is effectively arranged, so that a reasonable cutting edge is formed at the joint of pouring pieces.

Description

Technical Field

[0001] The utility model relates to the technical field of components of molds for casting container corner pieces, and specifically refers to a cutting edge forming mechanism for a container corner piece processing mold, which can form a cutting edge that is easy to cut at the connection of the formed product to facilitate the separation and cutting operation of the workpiece. Background Art

[0002] Container corner fittings, also known as box corners or lifting corners, are mainly used at the corners of containers and play a key role in the lifting, handling, fixing, stacking and fastening operations of containers.

[0003] Currently, container corner fittings are typically manufactured using sand casting. Existing molds for container corner fittings typically consist of an upper and lower sand shell. Molten steel is poured through a riser located on the upper sand shell. The finished casting typically contains four container corner fittings. After the sand shell cools naturally and the sand is removed, appropriate cutting equipment is required to separate the container corner fittings. Due to the significant thickness of the material connecting the corner fittings to the riser, thermal cutting methods such as flame, plasma, and laser, or cold cutting methods such as band saws, circular saws, and milling cutters are primarily used to separate the parts. This results in low cutting efficiency and relatively high costs. To address this issue, some manufacturers have begun experimenting with adding a pointed ridge to the casting guide area of the container corner fittings to create a cutting edge. This is then driven directly into the cast corner fittings through an expansion mechanism, breaking the edge directly and rapidly severing the corner fittings. However, the setting of the pointed forming ridge will directly affect the circulation of molten steel, thereby affecting the pouring process and the forming quality of the product, which is very troublesome.

[0004] Therefore, under the premise of not excessively affecting the circulation of molten steel, the purpose of this utility model is to design a cutting edge forming mechanism for container corner processing molds that can effectively set the forming ridge to form a reasonable cutting edge at the joint of the casting, thereby facilitating subsequent workpiece separation and cutting operations. Summary of the Invention

[0005] In response to the technical problems existing in the above-mentioned prior art, the present invention provides a cutting edge forming mechanism for a container corner piece processing mold, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0006] The technical solution of the utility model is:

[0007] A cutting edge forming mechanism for a container corner piece processing die, comprising:

[0008] A pouring material guide channel is connected between the pouring riser of the mold sand shell and the molding cavity;

[0009] A receiving groove is provided on the mold sand shell below the pouring material guiding channel;

[0010] A formed convex edge is installed in a lifting manner in the receiving groove, and a plurality of corresponding coil springs are arranged at intervals in the receiving groove;

[0011] The spring limiting mechanism includes a group of compression plates arranged at the upper and lower ends of the coil spring, and the centers of the compression plates are connected by corresponding metal wires; the coil spring is fixed between the group of compression plates in an extruded state, the formed convex edge is embedded in the receiving groove, and the bottom surface of the formed convex edge abuts against the compression plate located at the upper part; after the metal wire is stretched, the coil spring is expanded, and the formed convex edge is pushed upward by the coil spring to form a cutting edge on the material located in the casting guide channel.

[0012] The molten steel passes through the pouring riser and the pouring guide channel into the forming cavity for pouring the workpiece. The ductility of the metal wire increases after being heated. Under the elastic force of the coil spring, the metal wire is stretched until the coil spring recovers its deformation.

[0013] The forming convex edge adopts an integrated sand rod, and the upper end of the forming convex edge is set in a pointed shape.

[0014] The receiving groove is integrally formed and connected to the mold sand shell.

[0015] The metal wire is made of copper.

[0016] Advantages of this utility model:

[0017] 1) The utility model provides a forming convex edge, so that the joint of the cast piece after casting can form a pointed cutting edge. Subsequently, the workpiece can be directly driven by a hydraulic expansion device to directly break the cutting edge, thereby quickly completing the separation and cutting of the container corner piece workpiece under the condition of low consumption.

[0018] 2) Since the setting of the forming ridge often leads to a reduction in the cross-section of the molten steel flow, which affects the fluidity of the molten steel during the pouring process, the present invention further provides a receiving groove on the mold sand shell on the lower side of the pouring guide channel 1, and then the forming ridge is installed in the receiving groove in a lifting manner; and the coil spring is compressed and limited by a spring limiting mechanism, and the compressed coil spring is placed in the receiving groove to provide support for the forming ridge. In this way, during the pouring process, the metal wire will begin to be in a high-temperature environment, and its elongation will be improved; at this time, under the elastic force of the coil spring, the metal wire is easily stretched, so the coil spring can be gradually expanded to drive the forming ridge to rise. In this way, the setting of the forming ridge can be completed directly without affecting the fluidity of the molten steel, thereby solving the adverse effects caused by the setting of the forming ridge and realizing the forming setting of the pointed cutting edge at the connection of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 This is a diagram of the usage state of the utility model.

[0021] Figure 3 This is a structural diagram of the formed convex edge installed in the storage groove.

[0022] In the accompanying drawings: pouring material guide channel 1, mold sand shell 2, pouring riser 201, molding cavity 202, receiving groove 3, molding convex edge 4, coil spring 5, spring limiting mechanism 6, compression plate 601, metal wire 602. DETAILED DESCRIPTION

[0023] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the following embodiments and accompanying drawings:

[0024] refer to Figure 1-3 , a cutting edge forming mechanism for a container corner piece processing die, comprising:

[0025] The pouring material guide channel 1 is connected between the pouring riser 201 and the forming cavity 202 of the mold sand shell 2;

[0026] The receiving groove 3 is provided on the mold sand shell 2 at the lower side of the pouring material guide channel 1;

[0027] The formed convex edge 4 can be lifted and installed in the receiving groove 3, and a plurality of corresponding coil springs 5 are arranged at intervals in the receiving groove 3;

[0028] The spring limiting mechanism 6 includes a group of compression plates 601 arranged at the upper and lower ends of the coil spring 5, and the centers of the compression plates 601 are connected by corresponding metal wires 602; the coil spring 5 is fixed between the group of compression plates 601 in an extruded state, the forming protrusion 4 is embedded in the receiving groove 3, and the bottom surface of the forming protrusion 4 abuts against the compression plate 601 located at the upper part; after the metal wire 602 is stretched, the coil spring 5 is unfolded, and the forming protrusion 4 is pushed upward by the coil spring 5 to form a cutting edge on the material located in the casting guide channel 1.

[0029] The molten steel passes through the pouring riser 201 and the pouring guide channel 1 into the forming cavity 202 for pouring the workpiece. The ductility of the metal wire 602 increases after being heated. Under the elastic force of the coil spring 5, the metal wire 602 is stretched until the coil spring 5 recovers its deformation.

[0030] The molding protrusion 4 is an integrated sand rod, and the upper end of the molding protrusion 4 is pointed. The receiving groove 3 is integrally formed and connected to the mold sand shell 2. The metal wire 602 is a copper metal wire.

[0031] The utility model provides a forming convex edge 4 so that a pointed cutting edge can be formed at the joint of the cast piece after casting. Subsequently, the workpiece can be directly driven by a hydraulic expansion device to directly break the cutting edge, thereby quickly completing the separation and cutting of the container corner piece workpiece at a low cost.

[0032] Because the provision of the molding lip 4 often reduces the cross-sectional area through which the molten steel flows, affecting its fluidity during the pouring process, the present invention further provides a receiving groove 3 on the mold shell 2 below the pouring channel 1. The molding lip 4 is then movably mounted within the receiving groove 3. A spring retaining mechanism 6 compresses and limits the coil spring 5, which is then placed within the receiving groove 3 to provide support for the molding lip 4. As a result, during the pouring process, the metal wire 602 is initially exposed to a high-temperature environment, increasing its elongation. At this point, the elastic force of the coil spring 5 causes the metal wire 602 to be easily stretched, allowing the coil spring 5 to gradually expand and drive the molding lip 4 upward. This allows the molding lip 4 to be provided without affecting the fluidity of the molten steel, thereby eliminating the adverse effects of the molding lip 4 and achieving the formation of a sharp edge at the joint of the cast part.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A cutting edge forming mechanism for a container corner piece processing mold, characterized in that: include: A pouring material guide channel (1) is connected between a pouring riser (201) and a molding cavity (202) provided in the mold sand shell (2); A receiving groove (3) is provided on the mold sand shell (2) below the pouring material guide channel (1); A formed convex edge (4) is installed in a lifting manner in the receiving groove (3), and a plurality of corresponding coil springs (5) are arranged at intervals in the receiving groove (3); The spring limiting mechanism (6) comprises a group of compression plates (601) arranged at the upper and lower ends of the coil spring (5), and the centers of the compression plates (601) are connected by corresponding metal wires (602); the coil spring (5) is fixed between the group of compression plates (601) in an extruded state, the formed convex edge (4) is embedded in the receiving groove (3), and the bottom surface of the formed convex edge (4) abuts against the compression plate (601) located at the upper part; after the metal wire (602) is stretched, the coil spring (5) is unfolded, and the formed convex edge (4) is pushed upward by the coil spring (5) to form a cutting edge on the material located in the casting guide channel (1).

2. The edge forming mechanism for a container corner piece processing mold according to claim 1, characterized in that: The molten steel passes through the pouring riser (201) and the pouring guide channel (1) and enters the forming cavity (202) to cast the workpiece. The metal wire (602) is heated and its elongation is increased. Under the elastic force of the coil spring (5), the metal wire (602) is stretched until the coil spring (5) recovers its deformation.

3. The edge forming mechanism for a container corner piece processing mold according to claim 1, characterized in that: The molding convex edge (4) adopts an integrated sand rod, and the upper end of the molding convex edge (4) is arranged in a pointed shape.

4. The edge forming mechanism for a container corner piece processing mold according to claim 1, characterized in that: The receiving groove (3) is integrally formed and connected to the mold sand shell (2).

5. The edge forming mechanism for a container corner piece processing mold according to claim 1, characterized in that: The metal wire (602) is made of copper.

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