CN212171793U - Pencil sharpener with adjustable cutting length - Google Patents
Pencil sharpener with adjustable cutting length Download PDFInfo
- Publication number
- CN212171793U CN212171793U CN202020099115.1U CN202020099115U CN212171793U CN 212171793 U CN212171793 U CN 212171793U CN 202020099115 U CN202020099115 U CN 202020099115U CN 212171793 U CN212171793 U CN 212171793U
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- hob
- pencil
- cut
- sharpener
- planing
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Abstract
The utility model is suitable for a cut a ware technical field, the utility model provides a cutting length adjustable cuts a ware, including the hobbing cutter, knife rest and rocking arm, the knife rest is provided with the toper and digs the chamber, the rocking arm passes through the fixing base and is connected with the knife rest, the hobbing cutter rotates along with the knife rest, the axis of hobbing cutter has the contained angle with the axis in toper planing chamber, the fixing base is provided with the ring gear, the hobbing cutter is provided with the gear in the one end that is close to the rocking arm, the other end is provided with adjusting part, adjusting part includes the mounting panel, elastic component and the spout that is located the mounting panel, mounting panel and knife rest fixed connection, the directional toper planing chamber of spout, the hobbing cutter is connected with the pivot in the one end of keeping away from the rocking arm, pivot and spout cooperation are so that the pivot slides along. The utility model provides another kind of cutting length adjustable cuts a ware, it can be controlled the cutting length who waits to cut a pen according to the user demand, satisfies the pen that uses of different users or different scenes.
Description
Technical Field
The utility model belongs to the technical field of cut a ware, especially, relate to a cutting length adjustable cuts a ware.
Background
The pencil sharpener is one of stationery commonly used in daily life and comprises a knife rest structure, a hob and a power mechanism, wherein the power mechanism drives the knife rest structure and the hob to cut a pencil, the end part of the pencil is inserted into the knife rest structure from the outside of the pencil sharpener, and the power mechanism drives the knife rest structure to operate, so that a cutter fixedly connected to the knife rest structure finishes the cutting work of the pencil. When using a pen, according to the use scene of difference, the user is different to the length of pencil nib, for example, can require the nib of pencil longer during the drawing, and to avoid exerting oneself too big and lead to the nib to break off then require the nib relatively shorter during writing, in the ware of cutting among the prior art, the length of the pencil nib of cutting out is all fixed, can not adjust the cutting length of pencil, can't satisfy different users' with a demand, use experience not good.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of above-mentioned technical problem at least, provide a cutting length adjustable cuts a ware, it can be according to user demand to waiting to cut the cutting length of a pencil and control, satisfies the pen that uses of different users or different scenes.
The technical scheme of the utility model is that: a pencil sharpener with adjustable cutting length comprises a hob, a hob holder and a rocker arm used for driving the hob holder to rotate, wherein the hob holder is provided with a conical planing cavity for a pencil to be cut to be inserted, the rocker arm is connected with the hob holder through a fixing seat, the hob rotates along with the hob holder, the axis of the hob and the axis of the conical planing cavity form an included angle, the fixing seat is provided with an inner gear ring, one end, close to the rocker arm, of the hob is provided with a gear meshed with the inner gear ring, one end, far away from the rocker arm, of the hob is provided with an adjusting component used for changing the size of the included angle according to the length of the pencil to be cut to be inserted into the conical planing cavity, the adjusting component comprises an installing plate, an elastic component and a chute located on the installing plate, the installing plate is fixedly connected with the hob holder, and the chute is, the hobbing cutter is keeping away from the one end of rocking arm is connected with the pivot, the pivot with the spout cooperation is so that the pivot is followed the spout slides, the elastic component be used for with the hobbing cutter draws to toper planing chamber or the elastic component is used for with the hobbing cutter top to toper planing chamber.
Optionally, the length of the chute is 3mm-10 mm.
Optionally, the elastic member is a tension spring, or the elastic member is a compression spring.
Optionally, the hob, the rotating shaft and the gear are of an integrally formed structure.
Optionally, a cutting opening is formed in one side of the conical planing cavity, and the periphery of the hob is embedded into the cutting opening.
Optionally, the pencil sharpener further comprises a clamping mechanism located at the front end of the tool holder and used for clamping a pencil to be cut.
Optionally, the clamping mechanism comprises two supporting arms arranged at intervals, the middle of each supporting arm is rotatably connected with the tool rest through a connecting shaft, one end of each supporting arm is connected with an elastic rotating wheel, the rotation directions of the elastic rotating wheels are opposite and the elastic rotating wheels are tightly attached to two sides of a pen to be cut, and a compression spring is connected between the other ends of the two supporting arms.
Optionally, the elastic wheel is a cylinder with a concave waist.
The utility model provides a cutting length adjustable cuts a ware will be waited to cut a pen and insert the toper planing chamber when cutting, along with waiting to cut the pen and insert the increase of toper planing chamber length, the hobbing cutter receives the extrusion of waiting to cut a pen, under adjusting part's effect, the axis of hobbing cutter and the contained angle grow between the axis in toper planing chamber, the cutting length of waiting to cut a pen is decided according to the size of contained angle to satisfy the demand of using of different users or different scenes.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a pencil sharpener with adjustable cutting length according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a pencil sharpener with an adjustable cutting length, which is provided by an embodiment of the present invention, without a clamping mechanism;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is an exploded view of a pencil sharpener with adjustable cutting length according to an embodiment of the present invention;
FIG. 5 is an enlarged schematic view at A in FIG. 4;
FIG. 6 is a schematic diagram of a pencil sharpener with adjustable cutting length according to an embodiment of the present invention;
FIG. 7 is another schematic diagram of a pencil sharpener with adjustable cutting length according to an embodiment of the present invention;
fig. 8 is another schematic diagram of the pencil sharpener with adjustable cutting length according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed, installed, connected, or indirectly disposed and connected through intervening components and intervening structures.
In addition, in the embodiments of the present invention, if there are orientations or positional relationships indicated by "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., based on the orientations or positional relationships shown in the drawings or the conventional placement state or use state, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated structure, feature, device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and various combinations of features/embodiments are not separately described in order to avoid unnecessary repetition in the present disclosure.
As shown in fig. 1 to 4, the embodiment of the utility model provides a cutting length adjustable cuts a ware, including hobbing cutter 1, knife rest 2 and the rocking arm 3 that is used for driving knife rest 2 pivoted, knife rest 2 is provided with and is used for supplying to cut a 7 male toper planing chamber 21, rocking arm 3 passes through fixing base 4 and is connected with knife rest 2, rocking arm 3 can rotate relative fixing base 4, hobbing cutter 1 rotates along with knife rest 2, the axis of hobbing cutter 1 has the contained angle with the axis of toper planing chamber 21, fixing base 4 is provided with ring gear 41, hobbing cutter 1 is being provided with gear 11 with ring gear 41 engaged with at the one end that is close to rocking arm 3 is fixed, when hobbing cutter 1 rotates along with knife rest 2, gear 11 and ring gear 41 mesh drive hobbing cutter 1 around its axis rotation, the actual motion of hobbing cutter 1 is promptly: the hobbing cutter revolves around the axis of the conical planing cavity 21 and simultaneously rotates around the axis of the hobbing cutter to cut the pencil 7 to be cut in the conical planing cavity 21, the hobbing cutter 1 is provided with an adjusting assembly 5 at one end far away from the rocker arm 3, and the adjusting assembly 5 can change the size of an included angle according to the length of the pencil 7 to be cut inserted into the conical planing cavity 21. Specifically, as the length of the pencil 7 to be cut inserted into the tapered planing cavity 21 becomes longer, the pencil 7 to be cut is in contact with the hob 1, the hob 1 is squeezed by the pencil 7 to be cut, under the action of the adjusting assembly 5, one end of the hob 1 away from the rocker arm 3 moves towards the direction departing from the tapered planing cavity 21, the included angle between the axis of the hob 1 and the axis of the tapered planing cavity 21 becomes larger, the cutting length of the pencil 7 to be cut at this time becomes smaller, that is, the longer the length of the pencil 7 to be cut inserted into the tapered planing cavity 21 is, the shorter the cutting length of the pencil 7 to be cut by the hob 1 is. Therefore, pen points with different lengths can be cut by controlling the length of the pen 7 to be cut inserted into the conical planing cavity 21, so that the pen using requirements of different users or different scenes can be met. In this embodiment, the cutting length refers to the axial cutting length of the hob 1 which winds the pencil 7 to be cut for one circle and winds the pencil 7 to be cut.
Alternatively, as shown in fig. 2 to 4, the adjusting assembly 5 includes an elastic member 52, a mounting plate 51 and a sliding slot 53 located on the mounting plate 51, the mounting plate 51 is fixedly connected to the tool holder 2, the sliding slot 53 points to the tapered planing chamber 21, the hob 1 is connected to a rotating shaft 50 at an end away from the rocker arm 3, the rotating shaft 50 is located in the sliding slot 53 and can slide along the sliding slot 53, so as to drive the hob 1 to move in a set direction, so as to change an included angle between an axis of the hob 1 and an axis of the tapered planing chamber 21. Wherein, when the contained angle grow, elastic component 52 is used for drawing hobbing cutter 1 to toper planing chamber 21, on the one hand, can make hobbing cutter 1 and wait to cut a 7 keep contact, ensures the cutting effect to waiting to cut a 7, and on the other hand, after the cutting, hobbing cutter 1 can self return under elastic component 52's effect, and in this kind of structure, elastic component 52 can be the extension spring, and the extension spring is on a parallel with spout 53, and the extension spring is the same with spout 53 orientation promptly. One end of a tension spring is connected with the rotating shaft 50, the other end of the tension spring can be connected to the mounting plate 51, the tension spring is positioned between the rotating shaft 50 and the axis of the conical planing cavity 21, as shown in fig. 5, in an initial state (namely the conical planing cavity 21 is not inserted with the pen 7 to be cut, and the rotating shaft 50 is positioned at the point a of the sliding chute 53), the included angle between the axis of the hob 1 and the axis of the conical planing cavity 21 is minimum, and at this time, the tension spring is in a normal state; when the included angle between the axis of the hob 1 and the axis of the conical planing cavity 21 becomes larger (the pencil 7 to be cut is inserted into the conical planing cavity 21, and the rotating shaft 50 moves from the point a to the point b of the sliding groove 53), the tension spring is in a stretching state. As another embodiment, the elastic member 52 is used for pushing the hob 1 towards the tapered shaving cavity 21, in this structure, the elastic member 52 can be a compression spring, the compression spring is parallel to the sliding slot 53, i.e. the tension spring and the sliding slot 53 are oriented in the same direction, one end of the compression spring is connected with the rotating shaft 50, the other end of the compression spring can be connected to the mounting plate 51, the rotating shaft 50 is located between the compression spring and the axis of the tapered shaving cavity 21, as shown in fig. 5, in the initial state (i.e. the tapered shaving cavity 21 is not inserted with the pencil 7 to be cut, and the rotating shaft 50 is located at the point a of the sliding slot 53), the included angle between the axis of the hob 1 and the axis of the tapered shaving cavity 21 is minimum, at this time, the compression spring is in the normal state, when the included angle between the axis of the hob 1 and the axis of the tapered shaving cavity 21 becomes larger (the tapered shaving cavity 21 is inserted with the pencil 7 to be cut, the compression spring is in a compressed state.
Specifically, the gear 11 may be a bevel gear 11, and when the angle between the axis of the hob 1 and the axis of the tapered shaving cavity 21 is changed, the reliability of the meshing of the gear 11 and the ring gear 41 is ensured.
Particularly, the rocker arm can be Z-shaped or L-shaped, so that the rocker arm is convenient for a user to operate and use.
Alternatively, as shown in fig. 4, the length L of the sliding groove 53 is 3mm-10mm, i.e. the size of the included angle between the axis of the hob 1 and the axis of the tapered planing chamber 21 is determined by controlling the length L of the sliding groove 53.
Specifically, the length L of the chute 53 is 4mm to 8 mm.
Specifically, the length L of the chute 53 is 7 mm.
Optionally, the hob 1, the rotating shaft 50 and the gear 11 may be an integrally formed structure, which has high structural strength and good use reliability.
Alternatively, as shown in fig. 2 and 4, a cutting opening 22 is provided at one side of the tapered shaving chamber 21, and the outer circumference of the hob 1 is fitted into the cutting opening 22. During cutting, the pencil 7 to be cut keeps still, and the cutter frame 2 and the hobbing cutter 1 rotate relatively to the pencil 7 to be cut, and the hobbing cutter 1 autorotates simultaneously, and like this, when the cutter frame 2 rotated, the pencil 7 to be cut exposed different positions through the cutting opening 22, and then made the hobbing cutter 1 cut different positions of the pencil 7 to be cut.
Optionally, as shown in fig. 1 and 4, the pencil sharpener further comprises a clamping mechanism 6 located at the front end of the tool holder 2, and the clamping mechanism 6 is used for clamping the pencil 7 to be cut, so that the pencil 7 to be cut is prevented from rotating along with the tool holder 2 during cutting, and the cutting quality is prevented from being affected.
Alternatively, as shown in fig. 4, the clamping mechanism 6 includes two supporting arms 61 arranged at an interval, the middle part of the supporting arm 61 is rotatably connected with the front end of the tool holder 2 through a connecting shaft 8, one end of the supporting arm 61 is connected with an elastic wheel 62, the two elastic wheels 62 are oppositely rotated and tightly attached to the two sides of the pencil 7 to be cut, i.e. the pencil 7 to be cut is inserted into the tapered planing cavity 21 after passing through between the two elastic wheels 62, and when the pencil 7 to be cut passes through between the two elastic wheels 62 and moves towards the tapered planing cavity 21, the elastic wheel 62 rotates to feed the pencil 7 to be cut into the tapered planing cavity 21, sliding friction is generated between the pencil 7 to be cut and the elastic wheels 62, so that the pencil 7 to be cut can be smoothly inserted into the tapered planing cavity 21, a compression spring 63 is connected between the other ends of the two supporting arms 61, when there is no pencil 7 to be cut between the two elastic wheels 62, the compression spring 63 is in a normal state, at the moment, the gap between the two elastic rotating wheels 62 is minimum, when the pencil 7 to be cut passes through the two elastic rotating wheels 62, the two elastic rotating wheels 62 can be unfolded by the pencil 7 to be cut, the distance between the two elastic rotating wheels 62 is increased, and at the moment, the compression spring 63 is in a compressed state. Through the effect of compression spring 63, can prevent on the one hand that the distance that opens between two elastic rotating wheel 62 is too big, can't realize pressing from both sides tightly waiting to cut pen 7, on the other hand, can change the distance between two elastic rotating wheel 62, realize waiting to cut the centre gripping of pen 7 to the different diameters. In practical application, as the hob 1 cuts the pencil 7 to be cut, the pencil 7 to be cut automatically moves to the tapered planing cavity 21 under the cutting force of the hob 1 and the action of the elastic wheel 62.
Optionally, the elastic wheel 62 may be made of rubber, and the elastic wheel 62 is a cylinder with a concave waist, so that the contact area between the elastic wheel 62 and the pencil 7 to be cut can be effectively increased, and the pencil 7 to be cut is further prevented from rotating.
Specifically, this pencil sharpener still includes the box body (not shown in the figure), and knife rest 2, hobbing cutter 1 and fixture 6 all install in the box body, and fixing base 4 installs on the box body, and rocking arm 3 is located the box body outside.
The working principle of the utility model is as follows:
two elastic rotating wheels 62 clamp and pass through the gap to cut the pencil 7, simultaneously, two elastic rotating wheels 62 roll to insert the pencil 7 to be cut into the conical planing cavity 21 in a guiding manner, after the pencil 7 to be cut is contacted with the hob 1, the hob 1 moves towards the conical planing cavity 21 along with the pencil 7 to be cut, the hob 1 is gradually extruded by the pencil 7 to be cut, the hob 1 can move away from the conical planing cavity 21 along the sliding groove 53, the included angle between the axis of the hob 1 and the axis of the conical planing cavity 21 is increased, and after the length of the pencil 7 to be cut inserted into the conical planing cavity 21 meets the requirement, a user starts to rotate the rocker arm 3 to cut the pencil 7 to be cut. The rocker arm 3 drives the tool rest 2 and the hob 1 to rotate together, meanwhile, the gear 11 is meshed with the inner gear ring 41 to drive the hob 1 to rotate, and the hob 1 cuts the part of the pencil 7 to be cut exposed out of the cutting opening 22; after the cutting is finished, the pen is taken out of the tapered planing cavity 21, the hob 1 is returned to the original position (i.e. point a) under the action of the elastic element 52, and meanwhile, the compression spring is returned to the normal state from the compressed state, so that the two elastic wheels 62 are returned to the initial position. The cutting length of the pencil 7 to be cut is determined by the included angle between the axis of the hob 1 and the axis of the conical planing cavity 21, as shown in fig. 6, when the included angle α between the axis of the hob 1 and the axis of the conical planing cavity 21 is smaller, the cutting length S of the pencil 7 to be cut by the hob 1 is longer; as shown in fig. 7, when the included angle α between the axis of the hob 1 and the axis of the conical planing cavity 21 is large, the cutting length S of the hob 1 to the pencil 7 to be cut is short; as shown in fig. 8, when the pencil 7 to be cut is inserted into the tapered shaving cavity 21, and the pencil 7 to be cut and the hob 1 are in point contact, under the action of the elastic member 52, as the hob 1 cuts the pencil 7 to be cut, the included angle between the axis of the hob 1 and the axis of the tapered shaving cavity 21 becomes smaller gradually from θ to γ, and the cutting length of the pencil 7 to be cut becomes longer gradually from S1 to S2.
The embodiment of the utility model provides a cutting length adjustable cuts a ware, when will waiting to cut 7 and insert toper planing chamber 21 and cut, along with waiting to cut 7 and insert the increase of toper planing chamber 21 length, hobbing cutter 1 receives the extrusion of waiting to cut 7, under adjusting part 5's effect, hobbing cutter 1's axis and the axis between the toper planing chamber 21 contained angle grow, decide the cutting length of waiting to cut 7 according to the size of contained angle, thereby satisfy the pen demand of using of different users or different scenes.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A pencil sharpener with adjustable cutting length comprises a hob, a hob holder and a rocker arm used for driving the hob holder to rotate, wherein the hob holder is provided with a conical planing cavity for inserting a pencil to be cut, the hob is connected with the hob holder through a fixed seat, the hob rotates along with the hob holder, the axis of the hob and the axis of the conical planing cavity form an included angle, the fixed seat is provided with an inner gear ring, the hob is provided with a gear meshed with the inner gear ring at one end close to the rocker arm, the hob is provided with an adjusting component used for changing the size of the included angle according to the length of the pencil to be cut inserted into the conical planing cavity at one end far away from the rocker arm, the adjusting component comprises a mounting plate, an elastic part and a chute located on the mounting plate, the mounting plate is fixedly connected with the hob holder, and the chute points to the conical planing cavity, the hobbing cutter is keeping away from the one end of rocking arm is connected with the pivot, the pivot with the spout cooperation is so that the pivot is followed the spout slides, the elastic component be used for with the hobbing cutter draws to toper planing chamber or the elastic component is used for with the hobbing cutter top to toper planing chamber.
2. The sharpener of claim 1 wherein said slide slot has a length of 3mm to 10 mm.
3. The sharpener of claim 1, wherein said resilient member is a tension spring or said resilient member is a compression spring.
4. The sharpener of claim 1 wherein said hob, said shaft and said gear are of one piece construction.
5. The sharpener of claim 1 wherein said tapered cavity is provided with a cutting opening on one side and said roller is fitted into said cutting opening at the periphery of said roller.
6. The sharpener of claim 1 wherein said sharpener further comprises a clamping mechanism at the forward end of said tool holder for clamping a pencil to be cut.
7. The pencil sharpener with adjustable cutting length as claimed in claim 6, wherein said clamping mechanism comprises two spaced support arms, the middle of said support arms is rotatably connected with said tool holder by a connecting shaft, one end of said support arms is connected with an elastic wheel, the two elastic wheels are oppositely rotated and tightly attached to the two sides of the pencil to be cut, and a compression spring is connected between the other ends of said two support arms.
8. The sharpener of claim 7 wherein said resilient wheel is a cylinder with a concave waist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020099115.1U CN212171793U (en) | 2020-01-16 | 2020-01-16 | Pencil sharpener with adjustable cutting length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020099115.1U CN212171793U (en) | 2020-01-16 | 2020-01-16 | Pencil sharpener with adjustable cutting length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212171793U true CN212171793U (en) | 2020-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020099115.1U Expired - Fee Related CN212171793U (en) | 2020-01-16 | 2020-01-16 | Pencil sharpener with adjustable cutting length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212171793U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590435A (en) * | 2021-01-05 | 2021-04-02 | 陈军 | Knife rest of pencil sharpener |
| CN113479003A (en) * | 2021-08-02 | 2021-10-08 | 聂铬 | Adjustable pencil sharpener |
-
2020
- 2020-01-16 CN CN202020099115.1U patent/CN212171793U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590435A (en) * | 2021-01-05 | 2021-04-02 | 陈军 | Knife rest of pencil sharpener |
| CN113479003A (en) * | 2021-08-02 | 2021-10-08 | 聂铬 | Adjustable pencil sharpener |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201218 Termination date: 20220116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |