Cold-drawn core rod head device

Abstract

The utility model discloses a cold-drawn core rod head device which comprises a rod body, the limiting block is arranged at the end part of the rod body; a reinforcing protrusion is arranged at the connecting position of the rod body and the limiting block, the rod body, the limiting block and the reinforcing protrusion are integrally formed, the reinforcing protrusion is provided with an arc-shaped bent face, and the rod body is sleeved with a gasket.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe processing equipment, in particular to a cold-drawn core rod head device. Background Art

[0002] The current cold-drawn steel pipe process is to force the metal to undergo plastic deformation through the die hole under the action of tension. The volume remains unchanged during the deformation process, and the steel pipe with the target specifications and qualified performance is obtained. The size meets the requirements and there are no scratches or bumps. When the drawing force of the current steel pipe is large during cold drawing, it often causes the core rod head T-shaped threaded rod to break at the right angle. After the break, the core rod maintenance time is long, affecting the production efficiency of the production site; at the same time, the steel pipe is stuck on the equipment during the drawing process and cannot be removed. The processing is generally cut off from the head and tail ends of the core rod head, which will also cause abnormal difficulty and time for processing at the production site and damage the mold. Utility Model Content

[0003] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0004] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a cold-drawn core rod head device, including:

[0005] Rod body;

[0006] A limit block is arranged on the end of the rod body;

[0007] A reinforcing protrusion is provided at the connection between the rod body and the limiting block, and the rod body, the limiting block and the reinforcing protrusion are integrally formed, and the reinforcing protrusion is provided with an arc-shaped curved surface, and a gasket is sleeved on the rod body.

[0008] Furthermore, the washer is provided with a through hole matched with the rod body.

[0009] Furthermore, the inner wall of the through hole is provided with an inclined surface which can fit exactly with the arc-shaped curved surface.

[0010] Furthermore, a thread is provided on the outer wall of the rod body.

[0011] The present application provides a high-strength, easy-to-maintain cold-drawn core rod head device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0013] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0014] In the attached picture:

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a cross-sectional view of the utility model. DETAILED DESCRIPTION

[0017] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0018] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0019] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0020] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0021] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0022] like Figure 1-2 As shown, the cold-drawn core rod head device includes a rod body 1, a limit block 2 and a washer 3; the limit block 2 is fixed on the end of the rod body, the rod body and the limit block are integrally formed, a reinforcing protrusion 21 is provided at the connection, and the reinforcing protrusion is integrally formed with the rod body and the limit block, and the reinforcing protrusion is provided with an arc-shaped curved surface; a thread 11 is provided on the outer wall of the rod body 1; the washer 3 is provided with a through hole 31 through which the rod body passes, and the inner wall of the through hole is provided with an inclined surface 311, and the inclined surface 311 can just fit with the arc-shaped curved surface 21.

[0023] The device can increase the strength of the inner wall of the cold-drawn mandrel head by arranging reinforcing protrusions and gaskets at the connection, ensuring that the connection is not easy to break. At the same time, in the cold drawing process, abnormal card drawing occurs, and the inner mold is stuck in the tube, causing the nut at the head of the mandrel to be too tight and unable to be removed. By using gaskets, in this case, the gasket can be directly cut off by fire cutting to remove the tightened nut. This method reduces damage to the cold-drawn mandrel and is simple and convenient to operate.

[0024] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A cold drawn core rod head device, comprising: Rod body; A limit block is provided on the end of the rod body; It is characterized in that a reinforcing protrusion is provided at the connection between the rod body and the limit block, and the rod body, the limit block and the reinforcing protrusion are integrally formed, and the reinforcing protrusion is provided with an arc-shaped curved surface, and a washer is sleeved on the rod body.

2. A cold drawn core rod head device according to claim 1, characterized in that: The washer is provided with a through hole matched with the rod body.

3. A cold drawn core rod head device according to claim 2, characterized in that: The inner wall of the through hole is provided with an inclined surface which can fit exactly with the arc-shaped curved surface.

4. The cold-drawn core rod head device according to claim 1, characterized in that: The outer wall of the rod is provided with a thread.

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