Lifting tool for extrusion container assembly of copper, iron, magnesium and aluminum alloy extruder

Abstract

The utility model discloses a lifting tool for an extrusion container assembly of a copper, iron, magnesium and aluminum alloy extruder, which comprises a wedge-shaped lifting block and an anti-rotation positioning block, one end of the anti-rotation positioning block is rotatably connected with the wedge-shaped lifting block through a pin shaft, and the other end of the anti-rotation positioning block is connected with a handle; a wedge-shaped groove matched with the wedge-shaped lifting block is machined in the barrel surface of the extrusion barrel assembly in the circumferential direction, the fillet of the wedge-shaped groove is in smooth transition, and a square groove is machined in the barrel surface of the extrusion barrel assembly in the direction perpendicular to the wedge-shaped groove; the wedge-shaped lifting block is inserted into the wedge-shaped groove, and the anti-rotation positioning block is placed in the square groove, so that the anti-rotation positioning block cannot fall off from the square groove, and the wedge-shaped lifting block cannot fall off. When the extrusion container assembly is replaced, the operation is simple, safe and reliable, the service life of the extrusion container assembly can be prolonged, and operators are protected from being scalded.

Description

Technical Field

[0001] The utility model belongs to the technical field of extruders, in particular to a lifting tool for an extrusion barrel assembly of a copper, iron, magnesium or aluminum alloy extruder. Background Art

[0002] In copper, iron, magnesium and aluminum alloy extruders, the extrusion barrel assembly is a key component. Especially in harsh operating environments such as high temperature and high stress, the service life of the extrusion barrel is seriously affected. Therefore, the extrusion barrel assembly should try to avoid stress concentration points.

[0003] The existing lifting scheme for the extrusion barrel assembly typically involves drilling a threaded lifting hole above the center of the barrel assembly, then lifting with a lifting screw. However, machining the threaded lifting hole creates stress concentration at the sharp corners of the threads. During subsequent heat treatment, cracks can easily form along these corners, shortening the barrel's service life. Furthermore, during use, the barrel is subjected to high temperatures and stresses, which can cause stress concentration and cracks, ultimately leading to barrel failure and significant economic losses. Furthermore, most barrel assemblies are made of alloy die steel, such as H13, which carries high application costs, thus demanding a long service life.

[0004] In addition, during the production process, the specifications of the extrusion cylinder components used vary depending on the product specifications, and the disassembly and assembly of the extrusion cylinder components will be more frequent. Due to the tight production tasks and short cycles, the extrusion cylinder components are usually not allowed to cool to room temperature when replaced. Generally, they are disassembled at around 300°C. In this case, disassembly and assembly can easily cause burns. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a lifting tool for the extrusion barrel assembly of copper, iron, magnesium and aluminum alloy extruders, which avoids stress concentration in the extrusion barrel, extends the service life of the extrusion barrel, reduces production costs, saves time in replacing the extrusion barrel assembly, makes the replacement of the extrusion barrel assembly more convenient, efficient, quick and safe, improves production efficiency, ensures the safety of replacement personnel, and has positive significance.

[0006] The utility model is realized as follows: a lifting tool for an extrusion cylinder assembly of a copper, iron, magnesium or aluminum alloy extruder comprises a wedge-shaped lifting block and an anti-rotation positioning block, one end of the anti-rotation positioning block is rotatably connected to the wedge-shaped lifting block via a pin, and the other end of the anti-rotation positioning block is connected to a handle;

[0007] The cylinder surface of the extrusion cylinder assembly is processed with a wedge-shaped groove in the circumferential direction to cooperate with the wedge-shaped lifting block. The rounded corners of the wedge-shaped groove have a smooth transition. A square groove is processed on the cylinder surface of the extrusion cylinder assembly in a direction perpendicular to the wedge-shaped groove. The wedge-shaped lifting block is inserted into the wedge-shaped groove, and the anti-rotation positioning block is placed in the square groove, so that the anti-rotation positioning block will not fall out of the square groove and the wedge-shaped lifting block will not fall off.

[0008] In the above technical solution, preferably, a copper pad is provided at one end of the pin shaft, and an opening is provided at the other end of the pin shaft, and a cotter pin is passed through the opening.

[0009] In the above technical solution, preferably, the handle is mounted on the anti-rotation positioning block by screws.

[0010] In the above technical solution, preferably, the screw is a stainless steel screw, and a stainless steel washer is provided between the head of the stainless steel screw and the handle.

[0011] In the above technical solution, preferably, the handle is made of a high-temperature resistant and heat-insulating material.

[0012] In the above technical solution, preferably, the wedge-shaped lifting block is made of heat-treated steel.

[0013] The advantages and positive effects of the utility model are:

[0014] The present invention's extrusion barrel assembly lifting tool utilizes a wedge-shaped lifting block and an anti-rotation positioning block. Wedge-shaped and square grooves are machined into the barrel surface of the extrusion barrel assembly. The wedge-shaped lifting block is inserted into the wedge-shaped groove, while the anti-rotation positioning block is placed within the square groove. This prevents the anti-rotation positioning block from falling out of the square groove, and prevents the wedge-shaped lifting block from falling off. This simple, safe, and reliable tool allows for easy, reliable replacement of the extrusion barrel assembly, extending its service life and protecting operators from burns. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the lifting tool of the extrusion cylinder assembly of the utility model;

[0016] Figure 2 This is a front view of the extrusion cylinder assembly lifting tool of the utility model;

[0017] Figure 3 It is a side view of the extrusion cylinder assembly lifting tool of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the extrusion cylinder assembly of the utility model;

[0019] Figure 5This is a front view of the extrusion cylinder assembly lifting tool of the utility model installed on the extrusion cylinder assembly;

[0020] Figure 6 It is a side view of the extrusion cylinder assembly lifting tool of the utility model installed on the extrusion cylinder assembly.

[0021] In the figure: 1. Wedge-shaped lifting block; 2. Anti-rotation positioning block; 3. Pin; 4. Split pin; 5. Handle; 6. Screw; 7. Stainless steel washer; 8. Copper washer; 9. Extrusion cylinder assembly. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "connection," "connect," "installation," and "fitting" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] See Figures 1 to 6 The embodiment of the utility model provides a lifting tool for the extrusion cylinder assembly of a copper, iron, magnesium and aluminum alloy extruder, comprising a wedge-shaped lifting block and an anti-rotation positioning block, one end of the anti-rotation positioning block is rotatably connected to the wedge lifting block by a pin shaft, and the other end of the anti-rotation positioning block is connected to a handle; a wedge-shaped groove matching the wedge-shaped lifting block is processed in the circumferential direction of the cylinder surface of the extrusion cylinder assembly, the rounded corners of the wedge-shaped groove have a smooth transition and no stress concentration, and a square groove is processed on the cylinder surface of the extrusion cylinder assembly in a direction perpendicular to the wedge groove; the wedge-shaped lifting block is inserted in the wedge-shaped groove, and the anti-rotation positioning block is placed in the square groove. Due to the relationship between its own gravity and the center, the anti-rotation positioning block will not fall out of the square groove and the wedge-shaped lifting block will not fall off.

[0026] As a preferred embodiment, a copper pad is provided at one end of the pin shaft to play a wear-resistant role, and an opening is provided at the other end of the pin shaft, and a cotter pin is passed through the opening to prevent the pin shaft from falling off.

[0027] As a preferred embodiment, the handle is mounted on the anti-rotation positioning block by screws.

[0028] As a preferred embodiment, the screw is a stainless steel screw to prevent rust, and a stainless steel washer is provided between the head of the stainless steel screw and the handle.

[0029] As a preferred embodiment, the handle is made of a high-temperature resistant and heat-insulating material, such as phenolic plastic, polyimide, phenyl silicone rubber, borosilicate rubber, etc., which plays a role in anti-scalding and safety protection, protecting the operator from burns.

[0030] As a preferred embodiment, since the extrusion cylinder assembly is very heavy, the wedge-shaped lifting block is made of heat-treated steel. The strength design of the wedge-shaped lifting block meets the safety requirements of lifting and has high mechanical properties.

[0031] The specific implementation process of this utility model is as follows:

[0032] During the replacement of the extrusion cylinder assembly, the operator first holds the handle and lifts the anti-rotation positioning block. Then, after the wedge-shaped lifting block is inserted into the wedge-shaped groove, the anti-rotation positioning block is placed into the square groove perpendicular to the wedge-shaped groove. Due to the relationship between its own gravity and the center, the anti-rotation positioning block will not fall out of the square groove, and the wedge-shaped lifting block will not fall off. Figure 5 and Figure 6 .

[0033] The above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the scope of the technical solution of the present invention.

Claims

1. A lifting tool for the extrusion barrel assembly of copper, iron, magnesium, and aluminum alloy extruders, characterized by: It includes a wedge-shaped lifting block and an anti-rotation positioning block, one end of the anti-rotation positioning block is rotatably connected to the wedge-shaped lifting block through a pin, and the other end of the anti-rotation positioning block is connected to a handle; The cylinder surface of the extrusion cylinder assembly is processed with a wedge-shaped groove in the circumferential direction to cooperate with the wedge-shaped lifting block. The rounded corners of the wedge-shaped groove have a smooth transition. A square groove is processed on the cylinder surface of the extrusion cylinder assembly in a direction perpendicular to the wedge-shaped groove. The wedge-shaped lifting block is inserted into the wedge-shaped groove, and the anti-rotation positioning block is placed in the square groove, so that the anti-rotation positioning block will not fall out of the square groove and the wedge-shaped lifting block will not fall off.

2. The lifting tool for the extrusion barrel assembly of a copper, iron, magnesium or aluminum alloy extruder according to claim 1, characterized in that: One end of the pin shaft is provided with a copper pad, and the other end of the pin shaft is provided with an opening, and a cotter pin is passed through the opening.

3. The lifting tool for the extrusion barrel assembly of a copper, iron, magnesium or aluminum alloy extruder according to claim 1, characterized in that: The handle is mounted on the anti-rotation positioning block by screws.

4. The lifting tool for the extrusion barrel assembly of a copper, iron, magnesium or aluminum alloy extruder according to claim 3, characterized in that: The screw is a stainless steel screw, and a stainless steel washer is provided between the head of the stainless steel screw and the handle.

5. The lifting tool for the extrusion barrel assembly of a copper, iron, magnesium or aluminum alloy extruder according to claim 1, characterized in that: The handle is made of high-temperature resistant and heat-insulating material.

6. The lifting tool for the extrusion barrel assembly of a copper, iron, magnesium or aluminum alloy extruder according to claim 1, characterized in that: The wedge-shaped lifting block is made of heat-treated steel.

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