Error question excerpting device

A technology of wrong questions and substrates, applied in the field of stationery, to reduce the influence of interference, improve cutting efficiency, and reduce friction

Pending Publication Date: 2022-08-05
JIANGSU SECURITY TECH CARRER ACADEMY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a device for extracting wrong questions, which can solve various defects easily caused by traditional cutting tools when cutting wrong questions, and is safe, durable, convenient and efficient.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In this embodiment, a flexible socket-type traction mechanism is installed on the substrate 1, such as Figure 2-3 As shown, the pen tip of the writing pen 25 can be tightly wrapped by the flexible pen cover 4 (which can be made of transparent silicone material), and an indicator mark 5 consistent with the cutting direction of the arc knife 3 is provided on the outer side wall of the flexible pen cover 4, so that when cutting the paper At 21:00, the paper 21 can be easily cut (including the turning direction during cutting) by the movement of the writing pen 25. The substrate 1 is set in a spherical arc shape, and the inlay 2 is made of Teflon material, so that the cutting moves And the angle swings more smoothly.

[0043] The vibration direction of the miniature linear vibration motor 6 is parallel to the cutting direction of the arc-shaped knife 3 , which can increase the cutting effect of the arc-shaped knife 3 and make the cutting more efficient. The charging base ...

Embodiment 2

[0045] like Figure 7-8 As shown, in this embodiment, a universal rotary traction mechanism is adopted, and the arc-shaped knife 3 is deviated from the axis of the fulcrum 17. When the writing pen 25 drives the substrate 1 to move, the turntable 14 is forced to rotate to an arc-shaped The cutting direction of the knife 3 is consistent with the moving direction of the writing pen 25, so as to realize the control method of “knife moves with the pen”, instead of the control method that the writing pen 25 needs to conform to the cutting direction of the arc knife 3 in the first embodiment, so on this basis In this embodiment, the pen tip of the writing pen 25 only needs to be placed in the pen tip groove 18 . Of course, in order to make the azimuth follow-up of the arc-shaped knife 3 smoother, the ball 24 can be embedded in the part where the support shaft 17 is rotatably connected with the support shell 13 .

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Abstract

The invention discloses a wrong question excerpting device, and relates to the technical field of stationery. The device comprises a spherical arc-shaped substrate, an inlay made of Teflon is embedded and fixed on the lower surface of the substrate; the substrate and the inlay are both of a transparent structure; arc-shaped cutters are fixed at the lower ends of the substrates; the diameter of the arc-shaped cutter is 2-3mm; the lower end of the arc-shaped knife penetrates out of the lower end of the inlay by 0.07 mm; a follow-up traction mechanism is mounted at the upper end of the base plate; and the follow-up traction mechanism is used for guiding the cutting direction of the arc-shaped cutter to be consistent with the moving direction. The cutting tool has the beneficial effects that various defects easily caused by wrong cutting of a traditional cutting tool can be overcome, and the cutting tool is safe, durable, convenient, fast and efficient.

Description

technical field [0001] The present invention relates to the technical field of stationery. Background technique [0002] Students often need to excerpt the wrong questions, and then through the right and wrong questions from time to time to review, to deepen the grasp of error-prone knowledge points. Compared with the handwritten excerpt method, the method of cutting out the wrong questions and pasting them into the wrong question set is more commonly used, not only because this method saves time, but also because this method can avoid the defect that it is difficult to extract pictures by hand. At present, traditional cutting tools such as utility knives are used when cutting wrong questions. However, this traditional cutting tool has several defects when cutting wrong questions: First, the degree of cutting is not easy to control, and it is easy to cut the paper below. They are also scratched together; second, the knife tip is usually used for cutting, but the knife tip i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26B11/00
CPCB26B11/00
Inventor 褚凯樊巧芳吉强张星郝允龙张立鹏
Owner JIANGSU SECURITY TECH CARRER ACADEMY
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