Combined device for improving working precision of comma scraper

A comma scraper and combined device technology, which is applied to the device and coating of the surface coating liquid, can solve the problem of deflection and deformation of the comma scraper, improve the ability to resist deformation and service life, high use accuracy, eliminate The effect of flexural deformation

Inactive Publication Date: 2009-12-16
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of the prior art, the object of the present invention is to solve the problem of deflection and deformation of the comma scraper during use, and provide a device that can balance the deflection of the comma scraper and improve its rigidity, thereby ensuring that the comma scraper The working accuracy and measurement accuracy

Method used

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  • Combined device for improving working precision of comma scraper
  • Combined device for improving working precision of comma scraper
  • Combined device for improving working precision of comma scraper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: see Figure 1-2B , the two ends of the shaft head of the comma scraper 1 are respectively supported by brackets 4, and an auxiliary shaft 2 is arranged parallel to the outside of the comma scraper 1, and the comma scraper 1 and the auxiliary shaft 2 are supported by two perpendicular support arms to the auxiliary shaft 2 at both ends. 3 are connected into one body, and the two support arms are located on the opposite inner sides of the two supports 4 .

[0022] Figure 1B As shown, each support arm 3 is respectively provided with: a scraper shaft hole for the passage of the scraper shaft head 5 and an auxiliary shaft hole for the passage of the auxiliary shaft head 12, and the lock on the scraper shaft with its shaft head The tight nut 8 and the scraper shoulder 7 are axially positioned on the support arm 3; the inner nut 9 and the outer nut 10 are respectively arranged on both sides of the auxiliary shaft hole on the auxiliary shaft.

[0023] Figure 1...

Embodiment 2

[0026] Example 2: see image 3 , 3A , This embodiment is the same as Embodiment 1, the difference is that an angular contact bearing 15 is provided in the scraper shaft hole, and the scraper shaft head 5 is rotatably connected with the support arm 3 through the angular contact bearing. It can ensure that when the comma scraper 1 rotates to use the other cutting edge, the pretightening force of the auxiliary shaft 2 is always maintained to pass through the support arm 3 to the comma scraper with an appropriate balance force and moment to ensure the straightness of the cutting edge. In addition, it can be foreseen that when the bracket clamps a comma scraper that is not fixed and does not rotate during work, but a slender shaft or roller that rotates during work, the combined device of this embodiment can also produce a suitable balance for it Force and moment, improve its working precision.

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Abstract

The invention relates to a combined device for improving working precision of a comma scraper similar to a fine macroaxis. Two ends of an axis head of the comma scraper are supported by a bracket respectively; two ends of the axis head of the comma scraper positioned in the opposite inner sides of the two brackets are respectively and fixedly provided with a supporting arm vertical to the scraper axis; two supporting arms are provided with an auxiliary axis which has axial displacement along the scraper axis and is locked in the supporting arm; and a different position of the auxiliary axis is locked in the supporting arm to generate axial load with different sizes and directions on the supporting arm. The combined device can accurately and rapidly adjust tightening torques of nuts at two ends of the auxiliary axis according to the weight and working load born by the scraper, generates preset axial load, adds the needed torque to the comma scraper to balance bending moment which is generated by the weight and the working load born by the comma scraper or the fine macroaxis, removes the bending deformation generated by the weight and the working load and ensures that the edge linearity of the high-precision scraper still keeps high service precision in a working state.

Description

Technical field: [0001] The invention relates to a combined device for improving the working precision of a comma scraper, which is mainly suitable for improving the measurement precision of the coating amount in equipment such as coating machines and composite machines. Background technique: [0002] The comma scraper commonly used in current coating machines, laminating machines and other equipment is mainly used to accurately measure the coating amount. During the coating work, the comma scraper is fixed and does not rotate, and the notched edge of the scraper is facing the tangent point of the coating roller or backing roller to scrape the passing coating to ensure uniform coating. The uniformity of coating scraping mainly depends on the full runout, cylindricity and edge straightness of the comma scraper. Even in the process of processing, the full runout, cylindricity and edge straightness of the comma scraper meet the design requirements, but in the process of use, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C11/04
Inventor 王勇赵韩刘正士吴成业郑胜涛王锦豪王业华叶继亮
Owner HEFEI UNIV OF TECH
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