Bushing structure with detachable mold core

Abstract

The utility model discloses a bushing structure of a detachable die core, which belongs to the technical field of wire drawing dies and comprises a detachable die core bushing shell, a fixing cavity of an inner hexagonal through hole screw is arranged at the top of the detachable die core bushing shell, a first die core accommodating cavity is arranged below the fixing cavity, and a second die core accommodating cavity is arranged below the first die core accommodating cavity. The first mold core accommodating cavity is a tapered body with a large upper part and a small lower part, the first mold core accommodating cavity is used for placing the first mold core, and the outer circle of the first mold core is ground into a tapered body which is matched with the first mold core accommodating cavity. The outer circle of the first mold core is ground into a body with taper, the body is matched with the first mold core containing cavity in the bottom of the detachable mold core bushing shell, and the effect that installation is easy and convenient is achieved; the die core is fixed at the top of the detachable die core bushing shell through the inner hexagonal through hole screw, the die core is prevented from being taken out in the wire withdrawing process of the wire drawing machine, the die sleeve does not need to be replaced if the die core needs to be replaced in the wire drawing production process, and waste of materials is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire drawing dies, and in particular relates to a sleeve structure of a detachable die core. Background Art

[0002] In the field of wire drawing die technology, wire drawing dies are divided into the following categories: 1. Tungsten steel wire drawing dies, 2. Polycrystalline wire drawing dies, 3. Diamond coated dies. Among them, diamond coated dies are a kind of tungsten steel wire drawing die that reorganizes the atomic structure through high-temperature sintering, and makes the reorganized atoms closely adhere to the surface of the tungsten steel wire drawing die, making it have a hardness several times higher than that of tungsten steel wire drawing dies, ultimately achieving the effect of improving production efficiency and increasing output ratio.

[0003] In the traditional wire drawing die inserting process, a high-precision CNC lathe is used to turn out a die shell that meets the installation size of the wire drawing machine, and the die shell is heated by high-frequency heating, and the wire drawing die core and the wire drawing die shell are tightly installed together using the hot inserting process. However, in the wire drawing production process, because the high-speed operation of the wire drawing machine brings great impact and friction to the wire drawing die, the wire drawing die core is often pulled out of the die shell body, resulting in failure to work normally, and in the process of replacing the wire drawing die, the die shell and the die core cannot be separated, resulting in waste. Summary of the invention

[0004] In order to solve the above-mentioned problems, the utility model provides a detachable mold core sleeve structure with a simple structure, which solves the problem of the need to replace the mold core and mold shell together during the use of the wire drawing die in the past, resulting in waste of materials and reduced production efficiency due to the overall replacement of the wire drawing die.

[0005] In order to achieve the above purpose, the specific technical solution of this application is as follows:

[0006] A sleeve structure for a detachable mold core comprises a detachable mold core sleeve shell, a fixing cavity for a hexagon socket through-hole screw is provided on the top of the detachable mold core sleeve shell, a first mold core accommodating cavity is provided below the fixing cavity, the first mold core accommodating cavity is in a tapered shape with a larger top and a smaller bottom, the first mold core accommodating cavity is used to place the first mold core, and the outer circle of the first mold core is ground into a tapered shape to match the first mold core accommodating cavity.

[0007] Based on the above technical features, preferably, a plurality of second core accommodating cavities may be provided between the fixed cavity and the core accommodating cavity, which are cylinders with the same upper and lower diameters, and the second core accommodating cavities are used to place the second core.

[0008] Based on the above technical features, further, the outer circle of the second mold core is a cylinder with the same upper and lower diameters, which is consistent with the second mold core accommodating cavity.

[0009] Based on the above technical features, preferably, the first mold core and the second mold core are diamond-coated mold cores or tungsten steel mold cores.

[0010] Compared with the prior art, the beneficial effects of this application are:

[0011] The first mold core and the second mold core match the first mold core accommodating cavity and the second mold core accommodating cavity inside the detachable mold core inserting shell, so that the first mold core and the second mold core can be conveniently fitted with the detachable mold core inserting shell during installation, thereby achieving an effect of easy installation;

[0012] Because the wire drawing machine moves in one direction during the production process, the first mold core accommodating cavity is at the bottom of the removable mold core inserting shell and adopts a tapered shape. During the drawing process, the mold core is squeezed by the drawing force and squeezed in the direction of the small taper, so that the first mold core is increasingly tightened inside the removable mold core inserting shell, which solves the problem that the mold core is pulled out by the wire drawing machine in the previous inserting process;

[0013] The top of the detachable mold core insert sleeve shell uses an inner hexagon through-hole screw to fix the mold core, which prevents the mold core from being brought out during the wire drawing machine's wire retracting process. During the wire drawing machine's production process, if the mold core needs to be replaced, you only need to use an inner hexagon wrench to take out the inner hexagon through-hole screw, use a wooden stick, reach in from the bottom, and gently tap the mold core to take out the mold core without replacing the mold sleeve. This solves the problem of the need to replace the mold core and mold shell together during the use of the wire drawing die in the past, which causes waste of materials and low production efficiency of the overall replacement of the wire drawing die. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of Embodiment 1 of a sleeve structure of a detachable mold core of the utility model;

[0015] Figure 2 This is a structural schematic diagram of a second embodiment of a sleeve structure of a detachable mold core of the utility model;

[0016] List of Figure Symbols:

[0017] 1. Hexagon socket through-hole screw; 2. Second mold core; 3. First mold core; 4. Removable mold core sleeve shell. DETAILED DESCRIPTION

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0019] It should be noted that the words "up", "down", "left", "right", "front" and "rear" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] In the description of the present invention, "several" means two or more than two, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0021] like Figure 1 As shown, it includes a detachable mold core insert housing 4, the top of the detachable mold core insert housing 4 is provided with a fixing cavity for a hexagon socket through-hole screw 1, and a first mold core accommodating cavity is provided below the fixing cavity. The first mold core accommodating cavity is a tapered shape with a larger top and a smaller bottom. The first mold core accommodating cavity is used to place the first mold core 3. The outer circle of the first mold core 3 is ground into a tapered shape that matches the first mold core accommodating cavity. The first mold core can be a diamond-coated mold core or a tungsten steel mold core. Example

[0022] like Figure 2 As shown, it includes a detachable core sleeve shell 4, a fixing cavity for a hexagon socket through-hole screw 1 is provided at the top of the detachable core sleeve shell 4, a first core accommodating cavity is provided below the fixing cavity, the first core accommodating cavity is located at the bottom of the detachable core sleeve shell 4, the first core accommodating cavity is in a tapered shape with a larger top and a smaller bottom, the first core accommodating cavity is used to place the first core 3, the outer circle of the first core 3 is ground into a tapered shape which matches the first core accommodating cavity, a second core accommodating cavity is also provided between the fixing cavity and the core accommodating cavity, that is, the second core accommodating cavity is close to the fixing cavity with the hexagon socket through-hole screw 1, the second core accommodating cavity may be multiple, the second core accommodating cavity is in the form of a cylinder with the same diameter at the top and the bottom, the second core accommodating cavity is used to place the second core 2, the outer circle of the second core is in the form of a cylinder with the same diameter at the top and the bottom which matches the second core accommodating cavity. The impact force and pressure of the wire drawing machine during the production process, combined with the tapered body structure, allows the first mold core to be tightly attached to the removable mold core insert housing, and the mold core will not fall off due to external force. The second mold can be a diamond-coated mold core or a tungsten steel mold core.

[0023] In summary, the first mold core and the second mold core in the present application can be conveniently fitted with the removable mold core insert sleeve shell during installation, and then locked by the hexagon socket through-hole screw on the top, so as to achieve the effect of easy installation. During the drawing process of the first mold core accommodating cavity, the first mold core is squeezed by the drawing force and squeezed in the direction of the small taper, so that the mold core is increasingly tightened inside the removable mold core insert sleeve shell, which solves the problem that the mold core is pulled out by the wire drawing machine in the previous inserting process; the top of the removable mold core insert sleeve shell uses hexagon socket through-hole screws to fix the mold core, and prevents the mold core from being brought out during the wire drawing machine's wire withdrawal process. During the production process of the wire drawing machine, if the mold core needs to be replaced, it only needs to use an hexagon socket wrench to remove the hexagon socket through-hole screw, use a wooden stick, extend it from the bottom, and gently tap the mold core to remove the mold core without replacing the mold sleeve, which solves the problem that the mold core and mold shell need to be replaced together in the past when using the wire drawing die, which causes waste of materials, and the problem of low production efficiency of the overall replacement of the wire drawing die.

[0024] It should be noted that the drawings only illustrate the technical ideas of the present invention, and the protection scope of the present invention cannot be limited by this shape. 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 all fall within the protection scope of the claims of the present invention.

Claims

1. A detachable mold core insert structure, characterized in that: It comprises a detachable core-insertion sleeve shell, a fixing cavity for a hexagon socket through-hole screw is provided on the top of the detachable core-insertion sleeve shell, a first core-accommodating cavity is provided below the fixing cavity, the first core-accommodating cavity is in a tapered shape with a larger upper portion and a smaller lower portion, the first core-accommodating cavity is used to place the first core, and the outer circle of the first core is ground into a tapered shape to match the first core-accommodating cavity.

2. The inserting structure of a detachable mold core according to claim 1, characterized in that: A plurality of second core accommodating cavities are provided between the fixed cavity and the core accommodating cavity. The second core accommodating cavities are cylindrical with the same upper and lower diameters. The second core accommodating cavities are used to place the second core.

3. The inserting structure of a detachable mold core according to claim 2, characterized in that: The second mold core is a cylinder with the same diameter at the top and the bottom, which is consistent with the second mold core accommodating cavity.

4. The inserting structure of a detachable mold core according to claim 2, characterized in that: The first mold core and the second mold core are diamond-coated mold cores or tungsten steel mold cores.

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