CN217373990U - Pen clamping and feeding mechanism and pencil sharpener - Google Patents

Abstract

The utility model relates to a pencil sharpener technical field discloses a press from both sides a pen, advance a mechanism and pencil sharpener, should press from both sides a pen, advance a mechanism and include: a mounting base having a mounting cavity; the first clamping assembly and the second clamping assembly are movably arranged in the mounting cavity, and a first pencil passing gap for a pencil to pass through is formed between the first clamping assembly and the second clamping assembly; the first pencil clamping block and the second pencil clamping block are movably arranged on the mounting seat, a second pencil penetrating gap for a pencil to penetrate is formed between the first pencil clamping block and the second pencil clamping block, and the second pencil penetrating gap is located above the first pencil penetrating gap. The utility model has the advantages of, this press from both sides the pen, advance the pen mechanism advance the pen and move back stability high, applicable in the parent's pen of different diameters, and whole dismouting, change convenience, structural stability is high.

Description

Pen clamping and feeding mechanism and pencil sharpener

Technical Field

The utility model relates to a pencil sharpener technical field especially relates to a press from both sides a pen, advance a mechanism and pencil sharpener.

Background

The pencil feeding mechanism of the automatic pencil sharpener is positioned at the top of the pencil sharpener, and when pencil sharpening is performed, a pencil is controlled to gradually penetrate into the pencil sharpener to perform pencil sharpening; after the pencil sharpening is finished, the pencil is controlled to be gradually pulled away from the pencil sharpener.

The pencil feeding mechanism generally comprises two groups of rotatable gear shaft assemblies, and the two groups of gear shaft assemblies can clamp the pencil so as to ensure that the pencil can be gradually fed into the pencil sharpener and gradually pulled out of the pencil sharpener. However, after the pencil is cut, the pencil can be pulled out from the two groups of gear shaft assemblies, and the pencil is prone to shift or fall off after being pulled out.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art exists, the utility model aims to solve the technical problem that, provide a pencil advance and retreat stability height, applicable in the double-layered pen of different diameter pencils, advance a mechanism and sharpener.

The utility model provides a technical scheme that its technical problem adopted is, provides a press from both sides a pen and advance a mechanism, include:

a mounting base having a mounting cavity;

the first clamping assembly and the second clamping assembly are movably arranged in the mounting cavity, and a first pencil passing gap for a pencil to pass through is formed between the first clamping assembly and the second clamping assembly;

first double-layered piece of writing brush and second press from both sides a writing brush piece, all movably set up on the mount pad, just first press from both sides a writing brush piece with the second that supplies the pencil to pass between the second presss from both sides a writing brush piece wears a clearance, the second is worn a clearance and is in first top of wearing a clearance.

Further, still include the lid, set up on the mount pad, and with the mount pad encloses into one and holds the chamber, first press from both sides a piece with the second presss from both sides a piece all in hold the chamber.

The pen holder further comprises two tensioning springs, the two tensioning springs are arranged in the accommodating cavity, one ends of the two tensioning springs are abutted against the cover body, and the other ends of the two tensioning springs are abutted against the first pen clamping block and the second pen clamping block respectively;

the first pen clamping block and the second pen clamping block are movably abutted.

Furthermore, the cover body is detachably clamped on the mounting seat;

the first pen clamping block and the second pen clamping block are both provided with a convex column, and the tensioning spring is sleeved on the convex column.

Furthermore, a first end part and a second end part are respectively arranged at two ends of the first clamping assembly, a third end part and a fourth end part are respectively arranged at two ends of the second clamping assembly, the third end part is close to the first end part, and the fourth end part is close to the second end part;

the mounting seat is provided with a sliding groove near the first end part and the fourth end part, and the first end part and the fourth end part are respectively arranged in the two sliding grooves in a sliding manner.

Furthermore, two torsion springs are arranged in the installation cavity, each torsion spring is provided with a first torsion arm and a second torsion arm, the two first torsion arms of the two torsion springs are respectively abutted against the installation seat, and the two second torsion arms of the two torsion springs are respectively abutted against the first clamping assembly and the second clamping assembly.

Furthermore, the first clamping assembly and the second clamping assembly respectively comprise a gear shaft and a roller sleeved on the gear shaft, and the roller is provided with at least two circles of bulges along the circumferential direction;

the second torsion arm is provided with a bending part, and the bending part is limited between the two circles of bulges.

Furthermore, two fixing pins are arranged on the mounting seat, and the two torsion springs are sleeved on the two fixing pins respectively.

The driving turntable is arranged on the mounting seat and is positioned below the first clamping assembly and the second clamping assembly, and a plurality of driving teeth are arranged on the driving turntable along the circumferential direction of the driving turntable;

the first clamping assembly and the second clamping assembly are arranged in a central symmetry mode, and driving teeth on the rotary table are meshed with the gear shafts in the first clamping assembly and the second clamping assembly.

The utility model provides a technical scheme that its technical problem adopted is, still provide a pencil sharpener, including foretell pen clip, advance a mechanism.

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

in the utility model, the first pencil clamping block and the second pencil clamping block are arranged above the mounting seat, the pencil passes through the second pencil passing gap and the first pencil passing gap from top to bottom, after the pencil is cut, the first pencil clamping block and the second pencil clamping block clamp the pencil, and the pencil is not easy to shift or fall; in the pencil sharpening process, a second pencil passing gap defined by the first pencil clamping block and the second pencil clamping block is positioned right above a first pencil passing gap defined by the first clamping assembly and the second clamping assembly, and the first pencil passing gap and the second pencil passing gap are concentric, so that the concentricity is better when pencils with different diameters are sharpened; in the process of feeding the pencil, the pencil can be ensured to be straight up and down without inclination; the pen clamping module and the pen feeding module are integrated in the same module, relative motion cannot occur between the pen clamping module and the pen feeding module, and the pen clamping module and the pen feeding module are convenient to disassemble, assemble and replace.

In the utility model, the first end part on the first clamping component and the fourth end part on the second clamping component are both arranged in the sliding groove in a sliding way, namely, both groups of clamping components can slide on one side, and the gap between the two groups of clamping components can be adjusted to adapt to pencils with different diameters; one end of the bevel gear close to the gear shaft is non-slidable, so that the meshing precision of the gear shaft and the driving teeth on the driving turntable can be ensured; the two groups of clamping assemblies are provided with the torsion springs at the slidable ends, the acting force of the torsion springs directly acts on the first clamping assembly or the second clamping assembly, the elasticity is uniform, and the structure is simple; in addition, the second torsion arm of the torsion spring is provided with a bending part which is limited between the two circles of bulges on the roller, so that the second torsion arm can not be separated from the roller in the use process, and the structural stability is high.

Drawings

FIG. 1 is a schematic view of the overall structure of a pen clamping and feeding mechanism of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic structural view of FIG. 1 with the cover removed;

FIG. 4 is an exploded view of FIG. 1;

FIG. 5 is an assembly view of the mount, first clamping assembly, second clamping assembly and torsion spring.

In the figure:

1. a mounting seat; 10. a lower base body; 11. an upper base body; 100. a mounting cavity; 101. a chute;

2. a first clamping assembly; 20. a gear shaft; 21. a roller; 22. a first end portion; 23. a second end portion; 210. a protrusion; 230. a first pen penetration gap;

3. a second clamping assembly; 32. a third end portion; 33. a fourth end portion;

4. a first pen clamping block; 40. a convex column; 450. a second pen penetration gap;

5. a second pen clamping block;

6. a cover body;

7. tensioning the spring;

8. a torsion spring; 80. a first torsion arm; 81. a second torsion arm; 810. a bent portion; 82. a fixing pin; 9. driving the turntable; 90. the drive teeth.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

As shown in fig. 1-5, a pen clamping and pen feeding mechanism comprises: the pen clamping device comprises a mounting seat 1, a first clamping assembly 2, a second clamping assembly 3, a first pen clamping block 4, a second pen clamping block 5, a cover body 6, two tightening springs 7, two torsion springs 8 and a driving disc 9.

The mount pad 1 has a mounting cavity 100, and this mount pad 1 is including lower pedestal 10 and upper pedestal 11, and upper pedestal 11 and lower pedestal 10 detachably joint each other, and both enclose this mounting cavity 100 to its inside part of installation.

The first clamping assembly 2 and the second clamping assembly 3 are movably arranged in the mounting cavity 100, and a first pencil passing gap 230 for a pencil to pass through is formed between the first clamping assembly 2 and the second clamping assembly 3. The first clamping assembly 2 and the second clamping assembly 3 both comprise a gear shaft 20 and a roller 21 sleeved on the gear shaft 20, and also comprise a shaft sleeve (not marked in the figure) sleeved on the gear shaft 20 and a pencil clamping wheel (not marked in the figure) sleeved on the shaft sleeve, wherein the pencil clamping wheel is made of rubber, and a pencil passes through between the two pencil clamping wheels when the pencil is sharpened; the gears on the gear shaft 20 are helical gears.

A driving turntable 9 is arranged below the first clamping assembly 2 and the second clamping assembly 3, the driving turntable 9 is mounted on the mounting base 1, and a plurality of driving teeth 90 are arranged on the driving turntable 9 along the circumferential direction of the driving turntable. Wherein the first clamping assembly 2 and the second clamping assembly 3 are arranged in a central symmetry, and the driving teeth 90 on the turntable are meshed with the gear shafts 20 in both the first clamping assembly 2 and the second clamping assembly 3.

In the working process, the rotary table 9 is driven to rotate to drive the first clamping assembly 2 and the second clamping assembly 3 to rotate, so that the pencil gradually extends into the pencil sharpener; after the pencil sharpening is finished, the rotary table 9 is driven to rotate reversely, so that the first clamping assembly 2 and the second clamping assembly 3 rotate in the opposite direction to the original direction, and the pencil gradually withdraws from the pencil sharpener.

A first end portion 22 and a second end portion 23 are respectively arranged at two ends of the first clamping assembly 2, a third end portion 32 and a fourth end portion 33 are respectively arranged at two ends of the second clamping assembly 3, the third end portion 32 is close to the first end portion 22, and the fourth end portion 33 is close to the second end portion 23; the mounting seat 1 is provided with a sliding groove 101 near the first end portion 22 and the fourth end portion 33, and the first end portion 22 and the fourth end portion 33 are slidably disposed in the two sliding grooves 101, respectively. Namely, the first clamping assembly 2 and the second clamping assembly 3 can slide on a single side to adapt to pencils with different diameters; the other end is not limited in the U-shaped groove and can not slide.

Two torsion springs 8 are arranged in the mounting cavity 100, each torsion spring 8 is provided with a first torsion arm 80 and a second torsion arm 81, the two first torsion arms 80 of the two torsion springs 8 are respectively abutted to the mounting seat 1, and the two second torsion arms 81 of the two torsion springs 8 are respectively abutted to the first clamping component 2 and the second clamping component 3. Under the action of the elastic force of the two torsion springs 8, the first clamping assembly 2 and the second clamping assembly 3 can clamp pencils with different diameters. The second torsion arm 81 is provided with a bending part 810, the roller 21 is provided with at least two circles of protrusions 210 along the circumferential direction, and the bending part 810 is limited between the two circles of protrusions 210 of the roller, so as to solve the problem that the second torsion arm 80 on the torsion spring 8 is easy to separate from the first clamping component 2 and the second clamping component 3. Specifically, the mounting base 1 is provided with two fixing pins 82, and the two torsion springs 8 are respectively sleeved on the two fixing pins 82.

In the actual use process, the first end portion 22 of the structure on the first clamping assembly 2 and the fourth end portion 33 of the structure on the second clamping assembly 3 are slidably arranged in the sliding groove 101, that is, both the two groups of clamping assemblies can slide in a single side, and the gap between the two groups of clamping assemblies (the first pen penetrating gap 230) can be adjusted to adapt to pencils with different diameters. One end of the bevel gear close to the gear shaft 20 is non-slidable, so that the meshing precision of the gear shaft and the driving teeth 90 on the driving turntable 9 can be ensured; the two groups of clamping assemblies are provided with one torsion spring 8 at the slidable end, the acting force of the torsion spring 8 directly acts on the first clamping assembly 2 or the second clamping assembly 3, the elasticity is uniform, and the structure is simple; in addition, the second torsion arm 81 of the torsion spring 8 is provided with a bending part 810, and the bending part 810 is limited between two circles of protrusions 210 on the roller 21, so that the second torsion arm 810 cannot be separated from the roller 21 in the using process, and the structural stability is high.

As shown in fig. 3-4, the first pencil clamping block 4 and the second pencil clamping block 5 are movably disposed on the mounting base 1, and a second pencil passing gap 450 for a pencil to pass through is provided between the first pencil clamping block 4 and the second pencil clamping block 5, and the second pencil passing gap 450 is located above the first pencil passing gap 230. Detachably joint lid 6 on mount pad 1, and lid 6 with mount pad 1 encloses into one and holds the chamber, first double-layered pen piece 4 with second double-layered pen piece 5 all is in hold in the chamber. Specifically, the cover 6 is detachably clamped to the mounting base 1. The pen clamping and the pen feeding are in the same module, relative motion cannot occur between the pen clamping and the pen feeding, the stability of the pen feeding and withdrawing is high, and the pen feeding, the pen withdrawing and the pen withdrawing are convenient to disassemble, assemble and replace.

A tensioning spring 7 is arranged on the back side of each of the first pen clamping block 4 and the second pen clamping block 5, the tensioning spring 7 is arranged in the accommodating cavity 100, one end of each of the tensioning springs 7 abuts against the cover body 6, and the other end of each of the tensioning springs 7 abuts against the first pen clamping block 4 and the second pen clamping block 5 respectively; the first pen clamping block 4 and the second pen clamping block 5 are movably abutted. The elastic force of the two tension springs 7 is inward, so that the first pencil clamping block 4 and the second pencil clamping block 5 can be abutted inwards to clamp the pencil. Specifically, a convex column 40 is arranged on each of the first pen clamping block 4 and the second pen clamping block 5, and the tensioning spring 7 is sleeved on the convex column 40 to prevent the spring from being separated from the first pen clamping block 4 and the second pen clamping block 5.

In the using process, the first pencil clamping block 4 and the second pencil clamping block 5 are arranged above the mounting base 1, the pencil penetrates through the second pencil penetrating gap 450 and the first pencil penetrating gap 230 from top to bottom, after the pencil is cut, the pencil is clamped by the first pencil clamping block 4 and the second pencil clamping block 5, and the pencil is not prone to shift or fall off; in the process of sharpening, a second pencil passing gap 450 defined by the first pencil clamping block 4 and the second pencil clamping block 5 is positioned right above a first pencil passing gap 230 defined by the first clamping assembly 2 and the second clamping assembly 3, and the first pencil passing gap and the second pencil passing gap are concentric, so that the concentricity is good when pencils with different diameters are sharpened; in the process of feeding the pencil, the pencil can be ensured to be straight up and down without inclination.

In this scheme, press from both sides the pen, advance the pen of a mechanism and move back stability high, applicable in the parent's pen of different diameters, and whole dismouting, change convenience, structural stability is high.

Claims (10)

1. A pen clamping and feeding mechanism is characterized by comprising:

a mounting base having a mounting cavity;

the first clamping assembly and the second clamping assembly are movably arranged in the mounting cavity, and a first pencil passing gap for a pencil to pass through is formed between the first clamping assembly and the second clamping assembly;

first double-layered piece of writing brush and second press from both sides a writing brush piece, all movably set up on the mount pad, just first press from both sides a writing brush piece with the second that supplies the pencil to pass between the second presss from both sides a writing brush piece wears a clearance, the second is worn a clearance and is in first top of wearing a clearance.

2. The pen clamping and feeding mechanism according to claim 1, further comprising a cover body arranged on the mounting seat and enclosing with the mounting seat to form an accommodating cavity, wherein the first pen clamping block and the second pen clamping block are both located in the accommodating cavity.

3. The pen clamping and feeding mechanism according to claim 2, further comprising two tensioning springs disposed in the accommodating cavity, wherein one ends of the two tensioning springs abut against the cover body, and the other ends of the two tensioning springs abut against the first pen clamping block and the second pen clamping block respectively;

the first pen clamping block and the second pen clamping block are movably abutted.

4. The pen clamping and feeding mechanism of claim 3, wherein the cover is detachably clamped on the mounting seat;

the first pen clamping block and the second pen clamping block are both provided with a convex column, and the tensioning spring is sleeved on the convex column.

5. The pen clamping and advancing mechanism according to claim 1, wherein the first clamping assembly has a first end and a second end at each end, the second clamping assembly has a third end and a fourth end at each end, the third end is close to the first end, and the fourth end is close to the second end;

the mounting seat is provided with a sliding groove near the first end part and the fourth end part, and the first end part and the fourth end part are respectively arranged in the two sliding grooves in a sliding manner.

6. The pen clamping and feeding mechanism of claim 5, wherein two torsion springs are disposed in the mounting cavity, each torsion spring has a first torsion arm and a second torsion arm, the first torsion arms of the two torsion springs both abut against the mounting seat, and the second torsion arms of the two torsion springs abut against the first clamping assembly and the second clamping assembly, respectively.

7. The pen clamping and feeding mechanism of claim 6, wherein each of the first clamping assembly and the second clamping assembly comprises a gear shaft and a roller sleeved on the gear shaft, and the roller is provided with at least two circles of protrusions along the circumferential direction;

the second torsion arm is provided with a bending part, and the bending part is limited between the two circles of bulges.

8. The pen clamping and feeding mechanism of claim 6, wherein the mounting seat is provided with two fixing pins, and the two torsion springs are respectively sleeved on the two fixing pins.

9. The pen clamping and feeding mechanism according to claim 7, further comprising a driving turntable mounted on the mounting base and located below the first clamping assembly and the second clamping assembly, wherein the driving turntable is provided with a plurality of driving teeth along a circumferential direction thereof;

the first clamping assembly and the second clamping assembly are arranged in a central symmetry mode, and driving teeth on the rotary table are meshed with the gear shafts in the first clamping assembly and the second clamping assembly.

10. A sharpener comprising a pen holder, pen feed mechanism as claimed in any one of claims 1-9.

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