CN210363130U - Quick-change type tool rest assembly of pencil sharpener - Google Patents

Abstract

The utility model relates to a pencil sharpener technical field discloses a quick change formula knife rest assembly of pencil sharpener, including: the mounting seat is provided with a first mounting groove and a second mounting groove, a through hole is formed between the first mounting groove and the second mounting groove, and the through holes are communicated with the first mounting groove and the second mounting groove; a limiting piece is arranged in each of the first mounting groove and the second mounting groove; the top of the knife rest is provided with a connecting sleeve, and the outer wall of the connecting sleeve is provided with a clamping groove; the connecting sleeve is arranged in the through hole, and the limiting piece is positioned in the clamping groove; the cover body is arranged above the mounting seat. The utility model has the advantages of, the locating part with two parallel arrangement in this knife rest assembly restricts the knife rest, when the lid was opened, can take out the knife rest in the lump, whole knife rest assembly simple structure, easy dismounting.

Description

Quick-change type tool rest assembly of pencil sharpener

Technical Field

The utility model relates to a pencil sharpener field especially relates to a quick change formula knife rest assembly of pencil sharpener.

Background

When the top cover of the existing electric pencil sharpener is opened, parts such as a cutter, a cutter rest and the like can be remained in the shell of the pencil sharpener; the cutter and the cutter rest are parts which are frequently required to be replaced in the pencil sharpener, so the arrangement mode has a complex structure, the replacement is troublesome when the cutter of the pencil sharpener is replaced, and the time for dismounting is long.

For example, patent No. CN107584945A discloses an electric pencil sharpener, which comprises a housing, wherein a driving device is arranged at the bottom of the housing, and a fixed sleeve is arranged at the upper part of the housing; a hob seat is arranged in the fixed sleeve, a hob holder is arranged in the hob seat, and a hob is arranged in the hob holder; at least two conical holes with different conical angles are formed in the tool rest around the circumferential direction of the hob; the shell is provided with a rotating button, the rotating button is connected with the tool rest, and the rotating button drives the tool rest to rotate so as to enable any one taper hole to be aligned with the sleeve center hole of the fixed sleeve in a coaxial manner; the driving device drives the hob seat to rotate, the hob seat drives the hob head and the hob cutter to rotate, and the hob cutter drives the fixed sleeve to rotate. This electronic penknife knife rest is installed in the hob seat, and the dismouting of hob seat and knife rest is troublesome, can not change the tool rapidly.

In order to solve the problems of the existing knife rest assembly of the pencil sharpener, a knife rest assembly which is simple in structure and convenient to replace needs to be designed.

Disclosure of Invention

An object of the utility model is to provide a change convenient pencil sharpener knife rest assembly to the above-mentioned not enough of prior art.

The utility model provides a technical scheme that its technical problem adopted is, provides a quick change formula knife rest assembly of pencil sharpener, a serial communication port, including:

the mounting seat is provided with a first mounting groove and a second mounting groove, a through hole is formed between the first mounting groove and the second mounting groove, and the through holes are communicated with the first mounting groove and the second mounting groove; a limiting piece is arranged in each of the first mounting groove and the second mounting groove;

the top of the knife rest is provided with a connecting sleeve, and the outer wall of the connecting sleeve is provided with a clamping groove; the connecting sleeve is arranged in the through hole, and the limiting piece is positioned in the clamping groove;

the cover body is arranged above the mounting seat.

In the above quick-change type blade carrier assembly for the pencil sharpener, the first mounting groove and the second mounting groove are arranged in parallel, and a containing cavity is arranged in the middle of the first mounting groove and in the middle of the second mounting groove.

In the quick-change tool rest assembly of the pencil sharpener, the cover body extends downwards to form two stop blocks which are arranged in parallel, and the connecting sleeve is positioned between the two stop blocks; the two stop blocks are abutted against the upper parts of the two limiting parts, and the stop blocks are perpendicular to the limiting parts.

In the quick-change tool rest assembly of the pencil sharpener, the cover body downwardly protrudes an inner positioning cylinder and an outer positioning cylinder which are coaxially arranged, and the connecting sleeve is sleeved on the inner positioning cylinder; the stop block is positioned between the inner positioning barrel and the outer positioning barrel, and a positioning block is arranged on the inner wall of the outer positioning barrel;

the cover body extends downwards to form a plurality of convex columns with threaded holes, and the convex columns are uniformly distributed on the outer side of the outer positioning cylinder.

In the above quick-change type tool rest assembly for the pencil sharpener, the mounting base comprises a base body and a fixing ring connected below the base body, and the outer positioning sleeve is sleeved on the base body; the seat body is provided with a positioning groove, and the positioning block is arranged in the positioning groove; the base body protrudes outwards to form a plurality of connecting frames which are uniformly distributed on the base body;

and a plurality of fixing blocks are arranged on the inner surface and the outer surface of the fixing ring.

In the above quick-change type tool rest assembly for a pencil sharpener, the connecting portion of the connecting frame and the base body is provided with a groove with an upward opening, and one end of the connecting frame away from the base body is provided with a projection; wherein, a through groove is arranged on a connecting frame;

the upper surface of the connecting frame is an inclined plane, a first round hole is formed in the upper surface of the connecting frame, and the convex column is arranged in the first round hole; the lower surface of the connecting frame is an inclined surface, and a second round hole communicated with the first round hole is formed in the lower surface of the connecting frame.

In the above quick-change type tool rest assembly for the pencil sharpener, the bottom of the cover body is provided with a first arc surface and a second arc surface which are connected, the first arc surface is upwards sunken, and the second arc surface is downwards protruded.

In the above quick-change type tool rest assembly for the pencil sharpener, the quick-change type tool rest assembly further comprises a housing arranged below the cover body, and the housing is provided with a third arc surface and a fourth arc surface which are connected with each other; when the cover body covers the shell, the third arc surface is attached to the first arc surface, and the fourth arc surface is attached to the second arc surface;

a clamping ring extends inwards from the top of the shell, a plurality of limiting blocks are connected to the bottom of the clamping ring, a plurality of grooves are formed in the bottom of the clamping ring, and the convex blocks are arranged in the grooves; the clamping ring is provided with a plurality of slots for the connecting frame to be clamped in, and one slot is provided with an error-proof block.

In the above quick-change tool rest assembly for a pencil sharpener, the quick-change tool rest assembly further comprises a transmission tooth piece, a fixed sleeve, a pencil block and a hob with a transmission gear;

the transmission tooth sheet is arranged on the fixed block on the inner surface of the fixed ring; the fixing sleeve is arranged on the fixing block on the outer surface of the fixing ring; the pen-supporting block is movably arranged in the knife rest; the hob is arranged in the hob holder, and the transmission gear is meshed with the transmission tooth piece.

In the above quick-change type holder assembly for a pencil sharpener, the side wall of the holder is provided with an upper chip discharging groove and a lower chip discharging groove, and the upper chip discharging groove and the lower chip discharging groove are both positioned on the side surface of the hob.

Compared with the prior art, the utility model discloses following beneficial effect has:

in the utility model, the mounting seat is provided with a first mounting groove and a second mounting groove which are parallel, two locating parts are arranged in the two mounting grooves in parallel, the locating parts are arranged in the clamping grooves of the tool rest, the tool rest is taken out by the cover body after the cover body is unscrewed, the tool rest is taken out together, and when pencil scraps are poured, the tool rest can not shield the pencil scraps, and the scraps are poured thoroughly; when needing the tool changing, make the locating part take place deformation, during the locating part middle part extruded holds the chamber, the locating part breaks away from the draw-in groove, can carry out dismouting knife rest, and the tool changing is convenient, efficient. The cover body and the shell are mutually attached through the convex and concave arc surfaces, the positioning between the shell and the top cover is accurate due to the unconventional screwing, and the assembly between the shell and the top cover is simple.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic half-section view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is another schematic view of FIG. 3;

FIG. 5 is a schematic view of the structure of FIG. 1 with the housing removed;

FIG. 6 is a schematic structural view of the mounting base;

FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;

FIG. 8 is a schematic plan view of FIG. 6;

FIG. 9 is a schematic structural view of the cover;

FIG. 10 is a schematic plan view of the cover;

FIG. 11 is a schematic plan view of another perspective of the cover;

fig. 12 is a schematic structural view of the first arc surface and the second arc surface;

FIG. 13 is a front view of FIG. 12;

FIG. 14 is a side view of FIG. 12;

FIG. 15 is a schematic structural view of the housing;

FIG. 16 is a schematic view of the structure of FIG. 15 from another perspective;

fig. 17 is a schematic view of the structure of the tool holder.

In the figure, 1, a mounting seat; 10. a base body; 100. a first mounting groove; 101. a second mounting groove; 102. a through hole; 103. an accommodating chamber; 104. positioning a groove; 105. a connecting frame; 1050. a groove; 1051. a bump; 1052. a through groove; 1053. an upper surface; 1054. a first circular hole; 1055. a second circular hole; 1056. a lower surface; 2. a limiting member; 3. a tool holder; 30. connecting sleeves; 300. a card slot; 31. a chip groove is arranged on the upper part; 32. a chip discharge groove; 4. a cover body; 40. a stopper; 41. an inner positioning barrel; 410. inserting a pen mouth; 42. an outer positioning cylinder; 420. positioning blocks; 43. a convex column; 430. a threaded hole; 44. a first arc surface; 45. a second arc surface; 5. a housing; 50. a third arc surface; 51. a fourth arc surface; 52. a collar; 520. a limiting block; 521. a groove; 522. a slot; 523. an error-proofing block; 6. a transmission tooth sheet; 7. fixing a sleeve; 8. a pen supporting block; 9. hobbing cutters; 90. a transmission gear; 91. a chip breaker groove.

Detailed Description

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and the detailed description, but the present invention is not limited to these examples.

As shown in fig. 1-5, a quick-change type blade carrier assembly for a pencil sharpener comprises: the pencil sharpener comprises a mounting base 1, a limiting piece 2, a knife rest 3, a cover body 4, a shell 5, a transmission tooth piece 6, a fixed sleeve 7, a pencil supporting block 8 and a hob 9.

As shown in fig. 6 to 8, in the mounting seat 1, a first mounting groove 100 and a second mounting groove 101 are formed in the mounting seat 1, a through hole 102 is formed between the first mounting groove 100 and the second mounting groove 101, and the through hole 102 is communicated with the first mounting groove 100 and the second mounting groove 102; a limiting member 2 is disposed in each of the first mounting groove 100 and the second mounting groove 101, and the limiting member 2 is preferably made of iron wire. Preferably, the first mounting groove 100 and the second mounting groove 101 are arranged in parallel, and the middle of the first mounting groove 100 and the middle of the second mounting groove 101 both have a containing cavity 103, the containing cavity 103 is used for allowing the middle of the limiting member 2 to enter the containing cavity 103 when the limiting member 2 deforms, and the limiting member 2 is disengaged from the clamping groove 300 of the tool holder, so that the tool holder 3 can be conveniently taken out of the mounting seat 1.

The mounting seat 1 comprises a seat body 10 and a fixed ring 11 connected below the seat body 10, and an outer positioning cylinder 42 is sleeved on the seat body 10; a positioning groove 104 is formed on the seat body 10, and a positioning block 420 on the cover body 4 is arranged in the positioning groove 104; the base body 10 protrudes outwards to form a plurality of connecting frames 105, and the connecting frames 105 are uniformly distributed on the base body 10; a plurality of fixing blocks 110 are provided on both the inner surface and the outer surface of the fixing ring 11.

The connecting part of the connecting frame 105 and the seat body 10 is provided with a groove 1050 with an upward opening, the arrangement of the groove 1050 can ensure the connecting strength between the connecting frame 105 and the seat body 10 and also ensure the uniform wall thickness of the connecting part, and when the mounting seat is injection molded, the connecting part cannot be loosened or deformed due to too slow cooling; one end of the connecting frame 105 far away from the seat body 10 is provided with a convex block 1051; wherein, a through groove 1052 is arranged on one connecting frame 105; the upper surface 1053 of the connecting frame 105 is an inclined surface, and the upper surface 1053 is an inclined surface, so that when the mounting seat is screwed on the shell 5, the inclined surface is attached to the lower surface of the collar 52 of the shell 5, a process of guiding the inclined surface is provided, screwing is smooth, and the blocking feeling is small. A first circular hole 1054 is formed on the upper surface 1053 of the connecting frame 105, and the convex column 43 is arranged in the first circular hole 1054; the lower surface 1056 of the connecting frame 105 is an inclined surface, a second round hole 1055 communicated with the first round hole 1054 is formed in the lower surface 1056 of the connecting frame 105, and a screw passes through the first round hole 1054 and the second round hole 1055 to fix the mounting base 1 and the cover 4. The lug 1051 can be matched with the groove 521 on the shell 5, and is limited by the limiting block 520, so that the cover 4 and the mounting seat 1, and the positions between the mounting seat 1 and the shell 5 can be ensured to be accurate; although the structure of the mount 1 is more complicated than that of the conventional mount, the mount 1 has a high integration level and can be formed by one-time injection molding.

As shown in fig. 17, the top of the tool holder 3 is provided with a connecting sleeve 30, and the outer wall of the connecting sleeve 30 is provided with a clamping groove 300; the connecting sleeve 30 is arranged in the through hole 102, and the limiting piece 2 is positioned in the clamping groove 300; the side wall of the tool rest 3 is provided with upper chip grooves 31 and lower chip grooves 32 which are arranged in a staggered mode, the upper chip grooves 31 are used for discharging sawdust generated during pencil sharpening, and the lower chip grooves 32 are used for discharging refill scraps generated during pencil sharpening, so that the aim of layered discharge is achieved.

As shown in fig. 9-14, cover 4 is disposed over mount 1. Preferably, the cover 4 extends downwards to form two stoppers 40, the two stoppers 40 are arranged in parallel, and the connecting sleeve 30 is located between the two stoppers 40; the two stoppers 40 abut against the upper portions of the two limiting members 2, the stoppers 40 are perpendicular to the limiting members 2, and the two stoppers 40 limit the limiting members 2 to prevent the limiting members 2 from being deformed or popped up.

The cover body 4 downwardly protrudes an inner positioning cylinder 41 and an outer positioning cylinder 42, the inner positioning cylinder 41 and the outer positioning cylinder 42 are coaxially arranged, and the connecting sleeve 30 of the tool rest 3 is sleeved on the inner positioning cylinder 41; the stop block 40 is positioned between the inner positioning cylinder 41 and the outer positioning cylinder 42, and the inner wall of the outer positioning cylinder 42 is provided with a positioning block 420; the cover 4 extends downwards to form a plurality of protruding columns 43 with threaded holes 430, and the protruding columns 43 are uniformly distributed on the outer side of the outer positioning cylinder 42. As shown in fig. 12, 13 and 14, the bottom of the cover 4 is provided with a first arc surface 44 and a second arc surface 45 which are connected, the first arc surface 44 is concave upwards, and the second arc surface 45 is convex downwards.

As shown in fig. 15 to 16, the housing 5 is disposed below the cover 4, and the housing 5 has a third arc surface 50 and a fourth arc surface 51 connected to each other; when the cover 4 is covered on the shell 5, the third arc surface 50 is attached to the first arc surface 44, and the fourth arc surface 51 is attached to the second arc surface 45; this kind of unconventional mode of screwing up guarantees that the mounted position between casing 5 and lid 4 is accurate, and during the dismouting, only needs to twist lid 4 left or right and just can separate or assemble the two together.

A clamping ring 52 extends inwards from the top of the shell 5, a plurality of limiting blocks 520 are connected to the bottom of the clamping ring 52, a plurality of grooves 521 are further formed in the bottom of the clamping ring 52, and the protrusions 1051 are arranged in the grooves 521; the collar 52 is provided with a plurality of slots 522 for the connecting frame 105 to be clamped in, wherein one slot 522 is provided with the error-proof block 523, the error-proof block 523 is arranged, and one connecting frame 105 is provided with a through groove 1052, so that the position relation between the mounting seat 1 and the shell 5 can be effectively ensured, and the position assembly error can be prevented.

The quick-change tool rest assembly also comprises a transmission tooth piece 6, a fixed sleeve 7, a pen-supporting block 8 and a hob 9 with a transmission gear 90; the transmission tooth sheet 6 is arranged on the fixed block 110 on the inner surface of the fixed ring 11; the fixing sleeve 7 is arranged on the fixing block 110 on the outer surface of the fixing ring 11; the pen-supporting block 8 is movably arranged in the knife rest 3; the hob 9 is arranged in the tool rest 3, the transmission gear 90 is meshed with the transmission tooth sheet 6, a plurality of rows of chip breaking grooves 91 which are linearly distributed from top to bottom are formed in the hob 9, and the chip breaking grooves 91 break the pencil chips after the pencil chips reach a certain length; and when the chip breakers 91 distributed along the straight line are processed, the processing tool only needs to feed along the straight line, the programming is simple, and the working hours consumed by processing are short.

In the course of the work, when the pencil sharpener needs to change the cutter frame 3, screw out the lid 4 from the casing 5 earlier, first arc surface 44 and third arc surface 50, and break away from the laminating between second arc surface 45 and the fourth arc surface 51, when taking out the lid 4, the lid 4 can be in the same place mount pad 1, transmission tooth piece 6, fixed cover 7, cutter frame 3 and hobbing cutter 9 take out, draw down cutter frame 30 hard, two locating parts 3 take place deformation, the middle part entering of locating part 3 holds in the chamber 103, locating part 2 breaks away from draw-in groove 300, the cutter frame 3 that will prepare pushes up from through-hole 102, locating part 2 blocks into draw-in groove 300 again, change the completion.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The utility model provides a quick change formula knife rest subassembly of pencil sharpener which characterized in that, including:

the mounting seat is provided with a first mounting groove and a second mounting groove, a through hole is formed between the first mounting groove and the second mounting groove, and the through holes are communicated with the first mounting groove and the second mounting groove; a limiting piece is arranged in each of the first mounting groove and the second mounting groove;

the top of the knife rest is provided with a connecting sleeve, and the outer wall of the connecting sleeve is provided with a clamping groove; the connecting sleeve is arranged in the through hole, and the limiting piece is positioned in the clamping groove;

the cover body is arranged above the mounting seat.

2. The quick-change tool holder assembly for a pencil sharpener according to claim 1, wherein the first mounting groove is parallel to the second mounting groove, and the first mounting groove and the second mounting groove each have a receiving cavity in the middle.

3. The quick-change tool rest assembly of the pencil sharpener as claimed in claim 2, wherein the cover body extends downwards to form two stop blocks, the two stop blocks are arranged in parallel, and the connecting sleeve is located between the two stop blocks; the two stop blocks are abutted against the upper parts of the two limiting parts, and the stop blocks are perpendicular to the limiting parts.

4. The quick-change tool rest assembly of the pencil sharpener as claimed in claim 3, wherein the cover body downwardly projects an inner positioning cylinder and an outer positioning cylinder which are coaxially arranged, and the connecting sleeve is sleeved on the inner positioning cylinder; the stop block is positioned between the inner positioning barrel and the outer positioning barrel, and a positioning block is arranged on the inner wall of the outer positioning barrel;

the cover body extends downwards to form a plurality of convex columns with threaded holes, and the convex columns are uniformly distributed on the outer side of the outer positioning cylinder.

5. The quick-change carriage assembly for a pencil sharpener according to claim 4, wherein the mounting base comprises a base body and a fixing ring connected below the base body, and the outer positioning cylinder is sleeved on the base body; the seat body is provided with a positioning groove, and the positioning block is arranged in the positioning groove; the base body protrudes outwards to form a plurality of connecting frames which are uniformly distributed on the base body;

and a plurality of fixing blocks are arranged on the inner surface and the outer surface of the fixing ring.

6. The quick-change carriage assembly for a pencil sharpener according to claim 5, wherein the connecting portion of the connecting frame and the base has a groove with an upward opening, and the end of the connecting frame away from the base is provided with a projection; wherein, a through groove is arranged on a connecting frame;

the upper surface of the connecting frame is an inclined plane, a first round hole is formed in the upper surface of the connecting frame, and the convex column is arranged in the first round hole; the lower surface of the connecting frame is an inclined surface, and a second round hole communicated with the first round hole is formed in the lower surface of the connecting frame.

7. The quick-change tool holder assembly for a pencil sharpener of claim 6, wherein the bottom of the cover body is provided with a first arc surface and a second arc surface which are connected, the first arc surface is concave upwards, and the second arc surface is convex downwards.

8. The quick-change carriage assembly for a sharpener of claim 7 further comprising a housing disposed below the cover, the housing having a third arcuate surface and a fourth arcuate surface connected thereto; when the cover body covers the shell, the third arc surface is attached to the first arc surface, and the fourth arc surface is attached to the second arc surface;

a clamping ring extends inwards from the top of the shell, a plurality of limiting blocks are connected to the bottom of the clamping ring, a plurality of grooves are formed in the bottom of the clamping ring, and the convex blocks are arranged in the grooves; the clamping ring is provided with a plurality of slots for the connecting frame to be clamped in, and one slot is provided with an error-proof block.

9. The quick-change carriage assembly for a sharpener of claim 5 further comprising drive teeth, a retaining sleeve, a pencil block and a hob with a drive gear;

the transmission tooth sheet is arranged on the fixed block on the inner surface of the fixed ring; the fixing sleeve is arranged on the fixing block on the outer surface of the fixing ring; the pen-supporting block is movably arranged in the knife rest; the hob is arranged in the hob holder, and the transmission gear is meshed with the transmission tooth piece.

10. The quick-change holder assembly for a sharpener of claim 9, wherein said holder sidewall defines upper and lower flutes that flank the hob.

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