CN212685073U

CN212685073U - Novel pencil sharpener feeding mechanism and pencil sharpener

Info

Publication number: CN212685073U
Application number: CN202021572390.7U
Authority: CN
Inventors: 陈中华
Original assignee: Yiwu Qide Stationery Co ltd
Current assignee: Yiwu Qide Stationery Co ltd
Priority date: 2020-08-01
Filing date: 2020-08-01
Publication date: 2021-03-12
Anticipated expiration: 2030-08-01

Abstract

The utility model relates to a novel pencil sharpener advances a mechanism. It includes the support and rotates the carousel of connecting on it, and the coaxial carousel bottom is equipped with and can drives its synchronous pivoted axle sleeve, and the hole of axle sleeve is square, and the round hole that the diameter is less than the axle sleeve hole is seted up at the carousel center, is equipped with compressible shell fragment between carousel and the support, the support on and the upside that is located the carousel still rotate and be connected with two rolling axes, its characterized in that about carousel axle center central symmetry sets up: the rolling shaft comprises a shaft body, a driven wheel and hub wheel bodies which rotate synchronously, the shaft body is rotatably connected with the support, the shaft body can slide left and right along the axial direction of the shaft body, the driven wheel is attached to the rotary table, a gap is formed between the two hub wheel bodies, and the rotary table can drive the driven wheel to rotate synchronously through friction force. The utility model discloses not only can press from both sides the pencil of tight various sizes, still possess the effect of rightting, avoid follow-up production to cut eccentric problem.

Description

Novel pencil sharpener feeding mechanism and pencil sharpener

Technical Field

The utility model relates to a pencil sharpener advances a mechanism, especially relates to a novel pencil sharpener advances a mechanism.

Background

The existing one is named as: the patent of 'an automatic pencil feeding device of a pencil sharpener' (patent number: 201120395255.4) comprises a fixed frame and a turntable arranged on the fixed frame, wherein a gear shaft is pivoted on the fixed frame and can rotate under the driving of the rotation of the turntable, and a spring is sleeved on a shaft sleeve and positioned between the turntable and the fixed frame. The working principle is as follows: the cutting mechanism of pencil sharpener drives the carousel rotatory, and the gear shaft receives the carousel drive also synchronous revolution, drives the pen-holder and inwards carries, and after the pencil was cut, the pencil can support with cutting mechanism and close, and the pencil can transmit the reverse power of gear shaft this moment, produces interact power and compression spring with the carousel after the gear shaft atress for appear skidding between carousel and the gear shaft, the pencil is no longer inwards advanced a pen, effectively protects the pencil not cut excessively. The clamping sleeve on the gear shaft is used for clamping and fixing the pencil, but the position of the gear shaft is basically fixed, so that the gap between the two clamping sleeves is fixed. Although the clamping sleeve has elasticity and can accommodate penholders with diameters slightly larger than the maximum distance, the clamping sleeve cannot be applied to penholders with diameters smaller than the distance between the clamping sleeves.

Therefore, the present invention is not suitable for cutting a pencil having a small outer diameter.

Disclosure of Invention

The utility model provides a novel pencil sharpener feeding mechanism with better universality; the problem of exist among the prior art not suitable cutting external diameter thinner is solved.

The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a novel pencil sharpener advances a mechanism, rotates the carousel of connecting including support and it on, the coaxial carousel bottom of being equipped with can drive its synchronous pivoted axle sleeve, the hole of axle sleeve is square, the round hole that the diameter is less than the axle sleeve hole is seted up at the carousel center, be equipped with compressible shell fragment between carousel and the support, the support on and the upside that is located the carousel still rotate the roll axis that is connected with two settings about carousel axle center central symmetry, its characterized in that: the rolling shaft comprises a shaft body, a driven wheel and hub wheel bodies which rotate synchronously, the shaft body is connected with the support in a rotating mode, the shaft body can slide left and right along the axial direction of the shaft body, the driven wheel is attached to the rotary table, a gap capable of clamping a pencil is formed between the two hub wheel bodies, and the rotary table can drive the driven wheel to rotate synchronously through friction force.

Because the two rolling shafts do not pass through the axle center of the rotating disc, the friction force provided by the rotating disc is not parallel to the actual rotating surface of the driven wheel, so the friction force can generate a component force parallel to the axle body, the component force can drive the rolling shaft to deviate towards one side, and the component forces borne by the two rolling shafts are opposite, so the hub wheel bodies on the two rolling shafts deviate in opposite directions, the gap capable of being accommodated between the hub wheel bodies is reduced, and the pencil clamping effect is realized. And because the two hub wheel bodies are mutually centrosymmetric and have the same offset rate, the pencil can be fixed at the center of the turntable, the pencil is ensured to enter the cutting mechanism at the right center angle, and the eccentricity is avoided. Therefore the utility model discloses not only can press from both sides the pencil of tight various sizes, still possess the effect of rightting, avoid follow-up production to cut eccentric problem.

Preferably, the shaft body is slidable a distance of 2 to 4 mm.

Preferably, the upper surface of the rotating disc is provided with a plurality of convex patterns distributed in a circumferential array, and the circumferential surface of the driven wheel is also provided with uniform bulges, so that the contact friction force is increased.

Preferably, the outer ring of the driven wheel and the hub wheel body are made of rubber.

Preferably, the elastic sheet is in the shape of a circular arc, and four elastic sheets are arranged in a circumferential array by taking the axis of the shaft sleeve as the center of a circle.

Preferably, the elastic sheet is fixedly connected with the shaft sleeve.

Preferably, the shaft body is provided with a limiting block, and the limiting block can be abutted to the support and used for limiting the position of the rolling shaft and preventing the driven wheel from being separated from the turntable.

The utility model also provides a pencil sharpener, including cutting mechanism and the mechanism of advancing, its characterized in that: the pencil feeding mechanism is the novel pencil sharpener pencil feeding mechanism. Because the novel pencil sharpener feeding mechanism has the technical effects, the pencil sharpener with the pencil feeding mechanism also has the same technical effects.

Therefore, compared with the prior art, the utility model has the following characteristics: 1. the two rolling shafts can reversely deviate along the axes of the two rolling shafts, so that the maximum gap between the hub wheel bodies can be adjusted, and the pencil with a thinner outer diameter can be clamped by the utility model; 2. because the two hub wheel bodies are mutually centrosymmetric and have the same offset rate, the pencil can be fixed at the center of the turntable, the pencil can enter the cutting mechanism at the right center angle, and the eccentricity is avoided.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a front view of the position of the roll axis after adjustment.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example 1: referring to fig. 1 and 2, a novel pencil sharpener pencil feeding mechanism comprises a support 1 and a turntable 2 rotatably connected to the support, a shaft sleeve 3 capable of driving the turntable to rotate synchronously is coaxially arranged at the bottom of the turntable 2, an inner hole of the shaft sleeve 3 is square, a round hole 21 with a diameter smaller than that of the inner hole of the shaft sleeve 3 is formed in the center of the turntable 2, a compressible elastic sheet 4 is arranged between the turntable 2 and the support 1, two rolling shafts 5 symmetrically arranged about the center of the axis of the turntable 2 are rotatably connected to the upper side of the support 1 and located on the turntable 2, each rolling shaft 5 comprises a synchronously rotating shaft body 51, a driven wheel 52 and a hub wheel body 53, the shaft body 51 is rotatably connected to the support 1, the shaft body 51 can slide left and right along the axial direction (see fig. 3), the driven wheel 52 is attached to the turntable 2, a gap is formed between the two hub wheel bodies 53.

The shaft body 51 is slidable a distance of 2 to 4 mm.

Referring to fig. 1, the upper surface of the turntable 2 is provided with a plurality of ribs 22 distributed in a circumferential array, and the circumferential surface of the driven wheel 52 is also provided with uniform protrusions, which is beneficial to increase the contact friction force.

The outer ring of the driven wheel 52 and the hub wheel body 53 are made of rubber.

Referring to fig. 1, the elastic sheet 4 is arc-shaped, and four elastic sheets 4 are circumferentially arranged in an array by taking the axis of the shaft sleeve 3 as the center of a circle.

The elastic sheet 4 is fixedly connected with the shaft sleeve 3.

Referring to fig. 2, the shaft body 51 is provided with a limit block 54, which can abut against the bracket to limit the position of the rolling shaft and prevent the driven wheel from separating from the turntable.

The embodiment also provides a pencil sharpener, which comprises a cutting mechanism and a pencil feeding mechanism, wherein the pencil feeding mechanism is the novel pencil sharpener feeding mechanism. Because the novel pencil sharpener feeding mechanism has the technical effects, the pencil sharpener with the pencil feeding mechanism also has the same technical effects. Meanwhile, since the cutting mechanism belongs to the prior art, the description is omitted in this embodiment.

The invention may be modified in many ways which will be obvious to a person skilled in the art, and such modifications are not to be considered as a departure from the scope of the invention. All such modifications as would be obvious to one skilled in the art are intended to be included within the scope of this claim.

Claims

1. The utility model provides a novel pencil sharpener advances a mechanism, rotates carousel (2) of connecting including support (1) and on it, carousel (2) bottom coaxial be equipped with can drive its synchronous pivoted axle sleeve (3), the hole of axle sleeve (3) is square, round hole (21) that the diameter is less than axle sleeve (3) hole are seted up at carousel (2) center, be equipped with compressible shell fragment (4) between carousel (2) and support (1), support (1) on and the upside that is located carousel (2) still rotate and be connected with two rolling axis (5) that set up about carousel (2) axle center symmetry, its characterized in that: the rolling shaft (5) comprises a shaft body (51), a driven wheel (52) and a hub wheel body (53) which rotate synchronously, the shaft body (51) is connected with the support (1) in a rotating mode, the shaft body (51) can slide left and right along the axial direction of the shaft body, the driven wheel (52) is arranged in a fitting mode with the rotary table (2), a gap is formed between the two hub wheel bodies (53), and the rotary table (2) can drive the driven wheel (52) to rotate synchronously through friction force.

2. The novel pencil sharpener feeding mechanism of claim 1, wherein: the shaft body (51) can slide for a distance of 2 to 4 mm.

3. The novel pencil sharpener feeding mechanism of claim 1 or 2, characterized in that: the upper surface of the turntable (2) is provided with a plurality of convex patterns (22) distributed in a circumferential array, and the circumferential surface of the driven wheel (52) is also provided with uniform bulges.

4. The novel pencil sharpener feeding mechanism of claim 1, wherein: the outer ring of the driven wheel (52) and the hub wheel body (53) are made of rubber materials.

5. The novel pencil sharpener feeding mechanism of claim 1, wherein: the elastic pieces (4) are arc-shaped, and four elastic pieces (4) are arranged in a circumferential array by taking the axis of the shaft sleeve (3) as the center of a circle.

6. The novel pencil sharpener feeding mechanism of claim 5, wherein: the elastic sheet (4) is fixedly connected with the shaft sleeve (3).

7. The novel pencil sharpener feeding mechanism of claim 1, wherein: and a limiting block (54) for preventing the driven wheel (52) from being separated from the turntable (2) is arranged on the shaft body (51).

8. The utility model provides a pencil sharpener, includes cutting mechanism and advances a mechanism, its characterized in that: the pencil feeding mechanism is the novel pencil sharpener feeding mechanism of any one of claims 1 to 7.