Automatic pencil sharpener

A mechanical pencil and automatic technology, applied in printing, office supplies, sharpening devices, etc., can solve problems such as inconvenient use, and achieve the effect of avoiding the problem of switch connection and solving the problem of switch connection

Inactive Publication Date: 2009-12-16
李海霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional electric pencil sharpener needs to be fed manually, and the pencil needs to be held firmly during the cutting process, and the pencil needs to be pulled out manually after cutting, which is very inconvenient to use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] An automatic pencil sharpener includes a motor 22, a transmission mechanism driven by the motor 22, an automatic cutting mechanism, an automatic advance and retreat pen mechanism, and a slip ring reversing mechanism.

[0015] refer to figure 1 , the transmission mechanism driven by the motor 22 includes a fire cow 23, an electronic board 19, a gear set 21, a bracket 18, a knife rest 15, a screw sleeve 11, and a movable stud 5. The motor 22 drives the gear set 21, and the knife rest 15 is socketed on the final gear of the gear set 21, and the knife rest 15 is connected to the screw sleeve 11 simultaneously, so that the movable stud 5 moves back and forth under the drive of the screw sleeve 11. The movable stud 5 is provided with a through hole, which is the entrance of the pencil cutting movement.

[0016] refer to figure 1 and Figure 4 , the automatic cutting mechanism includes a tool holder 15 , a hob 31 , and a ring gear 30 . The hob 31 and the knife rest 15 are ...

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PUM

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Abstract

The invention discloses an automatic pencil sharpener which comprises a motor, a drive mechanism, an automatic sharpening mechanism, an automatic pencil feeding and withdrawing mechanism and a slide ring turning mechanism, wherein the automatic pencil feeding and withdrawing mechanism is provided with an internal thread sleeve and an external thread movable screw stud which are meshed on a pencil feeding and withdrawing path; a rubber ring tightly sleeving a pencil is arranged in the movable screw stud; the thread sleeve is connected to a knife rest to drive the movable screw stud to feed and make reciprocating movement; the slide ring turning mechanism is provided with a pencil feed triggered switch at the front end of the knife rest, and two metal slide rings and two metal slide rods tightly pressed with the slide rings are arranged on a rotating shaft of the knife rest, therefore, the automatic pencil sharpener can realize the automatic feed sharpening and the automatic withdrawing of the pencil.

Description

【Technical field】 [0001] The invention relates to an electric pencil sharpener. 【Background technique】 [0002] The traditional electric pencil sharpener needs to manually feed the pencil, and it is necessary to manually hold the pencil firmly during the pencil cutting process, and it is also necessary to manually pull out the pencil after cutting, which is very inconvenient to use. 【Content of utility model】 [0003] The object of the present invention is to overcome the above-mentioned technical defects and provide an electric pencil sharpener capable of automatically feeding and withdrawing the pencil. [0004] The invention discloses an automatic pencil sharpener, which includes a motor, a transmission mechanism and an automatic cutting mechanism. [0005] Compared with the prior art, the present invention has the following characteristics: [0006] Since the internally threaded screw sleeve and the externally threaded movable stud are arranged on the path of the pen...

Claims

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Application Information

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IPC IPC(8): B43L23/08B43L23/02
Inventor 李海霞
Owner 李海霞
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