Method for aligning die head bolt

A bolt and die head technology, applied in the field of die head bolt alignment

Active Publication Date: 2020-07-14
湖北江升新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art above, and provide a method for alignment of die bolts, which aims to solve the alignment problem of die bolts in a film extruder using the stacking method

Method used

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  • Method for aligning die head bolt

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] Please refer to figure 1 , this embodiment provides a method for aligning die head bolts, which is suitable for film extruders that use the stacking method to produce films.

[0021] The film extruder includes a base plate and a plurality of die head bolts, and the film raw material is extruded from the gap between the base plate and the die head bolts after being melted inside the film extruder.

[0022] Alignment methods for die head bolts include:

[0023] Step 1, put the film raw material into the extruder to melt, and then extrude the molten film from the bottom of the die head bolt; ...

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PUM

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Abstract

The invention is applicable to the field of film extruders, and provides a method for aligning a die head bolt. The method comprises the steps that 1, a thin film raw material is put into a film extruder for melting, and a molten film is extruded below the die head bolt; 2, the molten film is segmented below at least one die head bolt through a sharp instrument so that the film is split into two sides, the molten film is integrated again under the action of surface tension, and a scratch is formed at the combined position; and 3, the scratch flows to a measuring position along with the moltenfilm, and the position of the scratch is marked as the position corresponding to the die head bolt on a thickness gauge. According to the method, the film is torn by the sharp instrument, and the molten film below the die head bolt is identified, so that the film can correspond to the die head bolt through identification when the film moves to the measuring position, and the die head bolt is aligned.

Description

technical field [0001] The invention belongs to the field of film extruders, in particular to a method for aligning die head bolts. Background technique [0002] In film production, the film raw material is melted by the film extruder and then extruded from the gap between the bottom plate and the die to form a finished film. The thickness control of the film is to adjust the distance between the die head and the bottom plate by adjusting the height of the bolt. The die head and the bolt are fixedly connected and move synchronously. The die head is located below the bolt. For the convenience of description, the die head and the bolt are collectively called Die bolts. There are multiple die head bolts, such as 30. The thickness gauge obtains film thickness data by measuring the cross-section of the film, and adjusts each die head bolt according to these data. Control the distance between each die head bolt and the bottom plate to control the thickness of the casting sheet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/08B29C48/31
CPCY02P70/10
Inventor 王金喜
Owner 湖北江升新材料有限公司
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