CN2352371Y - Pencil sharpener with lead protection - Google Patents

Abstract

The utility model relates to a lead protecting pencil sharpener, belonging to the field of stationery. The utility model whose structure is disclosed in the specifications is composed of a cutter blade (5), a fixing cutter blade (8), a milling cutter wheel (4), a driving gear (9), a driven gear (11), a center gear (12), a main shaft (1), and an adjusting device. The utility model is characterized in that the wood rod of a pencil and a pencil lead are sharpened in different methods. The utility model guarantees that the pencil lead is not cut off or is not broken for loss, cut pencil nib has small conicity, stroke is uniform and durable, and the size of the nib of the pencil lead is adjustable. The utility model can meet the requirements of various professional persons.

Description

Protect the core pencil sharpener.

A kind of guarantor's core pencil sharpener belongs to the stationery field.

Used pencil sharpener.Be to adorn a ledger-plate on knife rest, rod and pen core one cutter are rolled out the core point, it is cut forever that excess advances pen core, and owing to the radially resistance of blade, pen core very easily fractures again, and loss is more; Besides the core pointed cone degree of cutting out is greater than 24 °, during use the stroke chap too fast, general professional seldom uses.

The purpose of this utility model: a kind of guarantor's core pencil sharpening device is provided.

The utility model scheme.Be rod layer and pen core, cut and milling cutter wheel rotary cut with ledger-plate respectively pencil.It is unsteady that milling cutter wheel suppresses, as advance to cut excessive or beat slightly, cutter relieving automatically, and core point thickness is set up milling cutter with screw and is taken turns the depth of cut and regulate, and has spacingly, and pen core is never cut disconnected.

Advantage of the present utility model: guarantee the pen core loss that is not cut off or fractures, repair the core pointed cone degree cut out less than 12 ° and elongated, use stroke evenly durable, core point adjustable size is suitable for various professionals and uses.

The utility model is achieved like this.As Figure of description, the driving gear (9) of handgrip passes driven rotary with pencil in the insertion mouth of pencil (10) is equipped with band, drives vertical moving gear (11) by idler gear (12) and makes milling cutter wheel (4) rotation.When pencil advances rotation to advance to cut, wood pen holder is reamed by ledger-plate (8), expose pen core and stretch out forward, going out the core print upside has glue guide block (6), with the side pressure of balance grinding pen core, the milling cutter wheel (4) of downside is pressed to pen core under the effect of spring (2), the counter-rotating grinding makes it to obtain required core point, the thickness of core point, can adjust by the bolt (7) of a side, core point length is made by oneself with the person.

Practical function.By drawing pencil and repairing of student's pencil from the 2B-2H different hardness are cut, the core of guarantor effect is all arranged, it is long to cut the knockout taper, the stroke good evenness, durable province repaiies, use the pencil sharpener ratio with existing, stroke evenly is much better than pencil sharpener and repaiies the core point of cutting, and existing repairing with pencil sharpener cut three times less than this novel cutting once.Core point thickness is adjusted at 0.5mm to 1.5mm.Can satisfy general professional and student at different levels uses.

Claims (1)

1. A kind of guarantor's core pencil sharpener is to do wheel (9) by the driving tooth of handgrip in tool rest (5), ledger-plate (8) milling cutter wheel (4), vertical moving gear (11), idler gear (12), the band, main shaft (1) bearing support (3), spring (2), adjustment bolt (7) constitute, and it is characterized in that: the ledger-plate (8) that cutting pencil rod is installed at the tool rest upside; The fine groove milling cutter wheel (4) of milling pen core point is housed, by driving gear (9), by idler gear (12), vertical moving gear (11) driven rotary below the pen core outlet.The main shaft of milling cutter is contained on the bearing support, advances to cut the depth (core point thickness) with the bolt adjustment.

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