CN203198248U - Mandrel - Google Patents

Abstract

The utility model discloses a mandrel. A chromium layer is plated on the surface of the mandrel, and the mandrel has a certain taper. The mandrel disclosed by the utility model is simple and ingenious in structure and high in demoulding efficiency; and an obtained insulating pipe is smooth in the inner wall.

Description

Core

Technical field

The utility model relates to a kind of for the core on the wrapping machine.

Background technology

Have deficiency on the existing core structure, especially in knockout course, the demoulding is not easy, and influences the quality of product, haves much room for improvement.

Because knockout course is not smooth, causes the surface of insulation tube smooth inadequately, influences the use of quality and product.

Addressing these problems is extremely urgent as from the foregoing!

In view of this, the inventor has done deep research to this, designs a kind of core, exquisiteness simple in structure, and the demoulding efficiency height, products obtained therefrom insulation tube inner wall smooth, this case produces thus.

The utility model content

The purpose of this utility model is in order to provide a kind of core, exquisiteness simple in structure, demoulding efficiency height, products obtained therefrom insulation tube inner wall smooth.

For achieving the above object, the technical solution of the utility model is:

Core is characterized in that: be coated with the chromium layer on the surface of core, described core has certain tapering.

Further, the thickness of described chromium layer is at 0.5-2cm.

Root is further, and the difference of an end diameter of described core and the diameter of the other end is between 1-10cm.

The beneficial effects of the utility model: the utility model has the chromium layer at the surperficial Plating of core, described core has certain tapering, such setting, can improve the efficient of the demoulding, owing to the existence of tapering, be easy to accelerate the speed of the demoulding, the surface of core is provided with hard chrome in addition, make the inner wall smooth of insulation tube, beautiful and clean, improve the serviceability of product.

As from the foregoing, the utility model exquisiteness simple in structure, demoulding efficiency height, products obtained therefrom insulation tube inner wall smooth.

In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.

Description of drawings

Fig. 1 is structural representation of the present utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

With reference to the accompanying drawings 1, present embodiment discloses a kind of core, it is characterized in that: be coated with chromium layer 2 on the surface of core 1, described core 1 has certain tapering.

Further arrange, the thickness of described chromium layer 2 is at 0.5-2cm.

Further arrange, the difference of an end diameter of described core 1 and the diameter of the other end is between 1-10cm.

As from the foregoing, the utility model exquisiteness simple in structure, demoulding efficiency height, products obtained therefrom insulation tube inner wall smooth.

The above only is an embodiment of the present utility model, is not the restriction to this case design, and all equivalent variations of doing according to the design key of this case all fall into the protection domain of this case.

Claims (3)

1. core, it is characterized in that: be coated with the chromium layer on the surface of core, described core has certain tapering.

2. according to the described core of claim 1, it is characterized in that: the thickness of described chromium layer is at 0.5-2cm.

3. according to the described core of claim 1, it is characterized in that: the difference of an end diameter of described core and the diameter of the other end is between 1-10cm.

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