Semi-automatic pencil sharpener for answer sheet pencil

Abstract

The invention belongs to the technical field of teaching tools, and relates to a semi-automatic pencil sharpener for an answer sheet pencil. The semi-automatic pencil sharpener comprises a machine frame, a chain transmission device, a plurality of clamps, a movable assembly, a front and rear cutting assembly as well as an upper and lower cutting assembly, wherein the chain transmission device drives the clamps, the clamps drive the pencil to do intermittent forward movement, the front and rear cutting assembly comprises a front cutter disc and a rear cutter disc which rotate at high speeds, the upper and lower cutting assembly comprises an upper cutter disc and a lower cutter disc which rotate at high speeds, and the movable assembly drives the front and rear cutting assembly as well as the upper and lower cutting assembly to get close to the pencil and cut the pencil. According to the semi-automatic pencil sharpener, the cutting action is completed in a semi-automatic mode, the cutting sizes of the pencils are totally the same, the cutting face is very smooth and tidy, and the precious time of the examinee can be saved.

Description

technical field [0001] The invention belongs to the technical field of cultural and educational appliances, and relates to a cutting device for scribing and answering pencils, in particular to a semi-automatic sharpening machine for scribing and answering pencils. Background technique [0002] At present, most of the question types of some regular exams need to be painted on the answer sheet, and the answer sheet needs to be painted with a 2B pencil. When filling in the corresponding small rectangular information position, paint a line segment with a length of 3 mm and a width of 1 mm. Accurate", "Deep", "Full", "Even", "Clean". "Accurate" means that the position of the information bit must be painted accurately, and must not be swayed and misplaced. "Deep" means that the chromaticity of the information bits should be painted deep, but the information card should not be scratched. "Full" means that the small rectangular box of the information bit should be filled, not over...

AI Technical Summary

Problems solved by technology

[0006] Candidates need skills to sharpen pencils. If the sharpened pen tip is too narrow, the width of the information strip cannot be painted at one time, and it needs to be painted several times repeatedly. This will waste precious time in the examination room, and it is difficult to maintain the strength of each painting. The same, the depth of each smear is not uniform, affecting the quality of smearing the answer sheet

If it is cut too wide, it is easy to smear on the outside of the information cell, which may cause the cursor reader to misread the information. The examinee originally made a correct answer but misjudged it as a mistake, causing unnecessary losses to the examinee.

The quality of the pencil sharpener is also related to the quality of the pencil sharpener. A blunt pencil sharpener is likely to cause small particles to fall off the edge of the lead, or if the amount of cutting is too large at one time, it is easy to cause small particles to fall off the edge of the lead, which will cause The edges are uneven, and the depth of each part along the width direction is inconsistent in one stroke, and it is easy to scratch the surface of the answer card

[0007] Candidates generally need to prepare multiple pencils. The cutting quality of each pencil is different, which will lead to inconsistent depths of information bars on the same answer sheet, and cause the cursor reader to misjudge the test score.

[0008] Furthermore, candidates need to review the content of the exam before the exam. Time is precious, and sharpening pencils will also consume their time.

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