CN209795002U

CN209795002U - Automatic pen feeding mechanism

Info

Publication number: CN209795002U
Application number: CN201920291492.2U
Authority: CN
Inventors: 潘诚君
Original assignee: Deli Group Co Ltd
Current assignee: Deli Group Co Ltd
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2019-12-17
Anticipated expiration: 2029-03-07

Abstract

An automatic pen feeding mechanism comprises a fixed frame, a rotary table and a pen clamping assembly, wherein the rotary table is movably connected to one side of the fixed frame, and the pen clamping assembly is positioned on one side of the rotary table, which is far away from the fixed frame; the pen clamping assembly comprises a first pen clamping rotating shaft and a second pen clamping rotating shaft which are arranged in parallel, the side face of the rotating disc is provided with thread teeth, one end of the first pen clamping rotating shaft is provided with a first transmission rotating disc, and the second pen clamping rotating shaft is provided with a second transmission rotating disc relative to the other end of the first transmission rotating disc. Compared with the prior art, the transmission structure of carousel and first transmission carousel and second transmission carousel is protruding including the thread tooth that sets up in the carousel side and the first arch of setting at first transmission carousel terminal surface and the second of second transmission carousel terminal surface, and after the structure more adopted, the carousel rotates and drives the rotation of first transmission carousel and second transmission carousel and more adds steadily, makes the pencil slowly advance or retreat.

Description

Automatic pen feeding mechanism

Technical Field

The utility model relates to an automatic advance a ware of cutting, especially relate to an automatic advance a mechanism.

Background

The automatic pencil sharpener is a pencil sharpening tool, is fashionable and exquisite in shape, can be used as a decoration, and is a necessary stationery for pupils. The existing automatic pencil sharpener can drive a pencil to enter the pencil sharpener while the crank handle sharpens the pencil, but the existing automatic pencil feeding mechanism has the problems that the pencil is fed too fast and the rotation between transmission gears is not stable, the pencil lead is cut off, and the like, and the pencil sharpening is not stable.

SUMMERY OF THE UTILITY MODEL

The utility model discloses provide an automatic pen feeding mechanism that can advance a gently to above problem, effectively improve the efficiency of cutting a pen.

The utility model provides a used technical scheme of above problem is: an automatic pen feeding mechanism comprises a fixed frame, a rotary table and a pen clamping assembly, wherein the rotary table is movably connected to one side of the fixed frame, and the pen clamping assembly is positioned on one side of the rotary table, which is far away from the fixed frame; the pen clamping assembly comprises a first pen clamping rotating shaft and a second pen clamping rotating shaft which are arranged in parallel, two ends of the first pen clamping rotating shaft are rotatably connected with the first supporting frame, two ends of the second pen clamping rotating shaft are rotatably connected with the second supporting frame, a first pen clamping roller is arranged on the periphery of the middle part of the first pen clamping rotating shaft, and a second pen clamping roller is arranged on the periphery of the middle part of the second pen clamping rotating shaft; the side of carousel is equipped with the thread tooth, the one end that first double-layered pivot was equipped with first drive turntable, the second presss from both sides a pivot and is equipped with the second transmission carousel for the other end of first drive turntable, the terminal surface that the nearly first double-layered gyro wheel one end of first drive turntable has the first arch of a plurality of along the marginal equipartition, the terminal surface that the nearly second of second drive turntable pressed from both sides a gyro wheel one end has the second of a plurality of arch along the marginal equipartition, the thread tooth gomphosis of carousel on the clearance between arbitrary two adjacent first archs and on the clearance between arbitrary two adjacent second archs.

The utility model discloses automatic advance a mechanism carousel and rotate and drive first transmission carousel and second transmission carousel and rotate, the thread tooth gomphosis of carousel is on the clearance between two arbitrary adjacent first archs and the clearance between two arbitrary adjacent second archs on the thread tooth that indicates the carousel is located between two arbitrary adjacent first archs and between two arbitrary adjacent second archs, but the both sides flank of tooth of thread tooth do not support simultaneously on two arbitrary adjacent first archs or two arbitrary adjacent second archs. When the rotary table rotates towards one side and drives the first transmission rotary table and the second transmission rotary table to rotate, one side tooth surface of each thread tooth is abutted against one first convex side surface and one second convex side surface, and when the rotary table rotates towards the other side and drives the first transmission rotary table and the second transmission rotary table to rotate, the other side tooth surface is abutted against the adjacent first convex side surface and the adjacent second convex side surface. The rotary disc is driven by the movement of the pencil sharpener. Compared with the prior art, the transmission structure of carousel and first transmission carousel and second transmission carousel is protruding including the thread tooth that sets up in the carousel side and the first arch of setting at first transmission carousel terminal surface and the second of second transmission carousel terminal surface, and after the structure more adopted, the carousel rotates and drives the rotation of first transmission carousel and second transmission carousel and more adds steadily, makes the pencil slowly advance or retreat.

Preferably, the first protrusion and the second protrusion are in the shape of a cylinder or a truncated cone. Such setting is convenient for production and processing and equipment, and the protruding cooperation of thread tooth and cylinder or round platform body is more steady when rotating.

Preferably, the number of the first protrusions and the second protrusions is 12 to 20. After the number of the first protrusions and the number of the second protrusions are set within the range, the pen feeding speed is effectively controlled, the rotating disc rotates for a circle, and the first transmission rotating disc and the second transmission rotating disc rotate for the distance of one first protrusion or one second protrusion. The speed of the first transmission turntable and the second transmission turntable driven by the turntable is suitable for the forward movement or the backward movement of the pencil.

Preferably, the number of the first protrusions and the number of the second protrusions are 15. The number of the first bulges and the second bulges is set at 15, the turntable rotates fifteen times, the first bulges and the second bulges rotate one circle, which is equivalent to that the pencil advances once after fifteen times of the rocker arm, and the pencil advancing speed is most suitable for the pencil sharpener to sharpen the pencil.

Preferably, the end face of the turntable, which is close to one end of the pen clamping component, is provided with an indent.

Preferably, the middle parts of the first pen clamping rotating shaft and the second pen clamping rotating shaft are provided with concave parts, and the first pen clamping roller and the second pen clamping roller are sleeved on the peripheries of the concave parts. The depressed part is also cylindrical, and the external diameter of depressed part is less than the external diameter of first press from both sides a pivot and other positions of second press from both sides a pivot. The first pen clamping roller and the second pen clamping roller are made of elastic pieces or leather materials and used for clamping pens. Gaps are reserved between the inner wall of the first pen clamping roller and the periphery of the sunken part and between the inner wall of the second pen clamping roller and the periphery of the sunken part, and pens in and out with different sizes can be clamped conveniently.

Preferably, the outer walls of the two ends, close to the concave part, of the first pen clamping rotating shaft and the second pen clamping rotating shaft are provided with convex edges, and the inner walls of the first pen clamping roller and the second pen clamping roller are provided with grooves matched and clamped with the convex edges. The convex edge extends along the length direction of the first pen clamping rotating shaft and the second pen clamping rotating shaft, and the first pen clamping roller and the first pen clamping rotating shaft, and the second pen clamping roller and the second pen clamping rotating shaft are circumferentially limited by the cooperation of the convex edge and the groove.

Preferably, the end face of the turntable, which is close to one end of the fixing frame, is provided with an annular bulge, the fixing frame is provided with a circular groove, and the annular bulge is rotatably connected in the circular groove. Such an arrangement provides for guiding the turntable during rotation.

Drawings

Fig. 1 is a schematic structural view of an automatic pen feeding mechanism of the present invention.

Fig. 2 is an exploded view of an automatic pen feeding mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the turntable in fig. 1.

Fig. 4 is a schematic structural view of the automatic pencil feeding mechanism of the present invention applied to a pencil sharpener.

As shown in the figure: 1. the pen holder comprises a fixed frame, 11, a first support frame, 12, a second support frame, 13, a circular groove, 2, a rotary table, 21, thread teeth, 22, an inner recess, 23, an annular protrusion, 3, a pen clamping component, 301, a concave part, 302, a rib, 303, a groove, 31, a first pen clamping rotating shaft, 311, a first pen clamping roller, 312, a first transmission rotary table, 3121, a first protrusion, 32, a second pen clamping rotating shaft, 321, a second pen clamping roller, 322, a second transmission rotary table, 3221 and a second protrusion.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, 2, 3 and 4, an automatic pen feeding mechanism comprises a fixed frame 1, a rotary table 2 and a pen clamping assembly 3, wherein the rotary table 2 is movably connected to one side of the fixed frame 1 (the front side of the fixed frame 1 in fig. 1), and the pen clamping assembly 3 is positioned on one side of the rotary table 2 (the front side of the rotary table 2 in fig. 1) far away from the fixed frame 1; the fixing frame 1 is also provided with a pair of first supporting frames 11 and a pair of second supporting frames 12 on the same side as the rotating disc 2, the pen clamping assembly 3 comprises a first pen clamping rotating shaft 31 and a second pen clamping rotating shaft 32 which are arranged in parallel, the two ends of the first pen clamping rotating shaft 31 are rotatably connected to the first supporting frames 11, and the two ends of the second pen clamping rotating shaft 32 are rotatably connected to the second supporting frames 12.

The middle part of the first pen clamping rotating shaft 31 and the middle part of the second pen clamping rotating shaft 32 are provided with a concave part 301, the periphery of the concave part 301 of the first pen clamping rotating shaft 31 is sleeved with a first pen clamping roller 311, and the periphery of the concave part of the second pen clamping rotating shaft 32 is sleeved with a second pen clamping roller 321. The recessed portion 301 is also cylindrical, the outer diameter of the recessed portion 301 is smaller than the outer diameters of other portions of the first pen clamping rotating shaft 31 and the second pen clamping rotating shaft 32, the first pen clamping roller 311 and the second pen clamping roller 321 are elastic members, and gaps are reserved between the inner wall of the first pen clamping roller 311 and the recessed portion 301 and between the inner wall of the second pen clamping roller 321 and the recessed portion 301, so that pens can be buffered by the first pen clamping roller 311 and the second pen clamping roller 321 during pen clamping, and the gaps between the first pen clamping roller 311 and the second pen clamping roller 321 can clamp pens with different sizes to enter and exit. The outer walls of the first pen clamping rotating shaft 31 and the second pen clamping rotating shaft 32 near the two ends of the recessed portion 301 are provided with convex ribs 302, and the inner walls of the first pen clamping roller 311 and the second pen clamping roller 321 are provided with grooves 303 matched and clamped with the convex ribs 302. The rib 302 extends along the length direction of the first pen clamping rotating shaft 31 and the second pen clamping rotating shaft 32, and the cooperation of the rib 302 and the groove 303 enables the first pen clamping roller 311 to be circumferentially limited with the first pen clamping rotating shaft 31, the second pen clamping roller 321 and the second pen clamping rotating shaft 32.

The side of the rotation disc 2 is provided with a screw thread 21, one end of the first pen clamping rotation shaft 31 (the upper end of the first pen clamping rotation shaft 31 in fig. 1) is provided with a first transmission rotation disc 312, the second pen clamping rotation shaft 32 is provided with a second transmission rotation disc 322 relative to the other end of the first transmission rotation disc 312 (the lower end of the second pen clamping rotation shaft 32 in fig. 1), the end surface of one end of the first transmission rotation disc 312 close to the first pen clamping roller 311 (the lower end surface of the first transmission rotation disc 312 in fig. 1) is evenly provided with a plurality of first protrusions 3121 along the edge, the end surface of one end of the second transmission rotation disc 322 close to the second pen clamping roller 321 (the upper end surface of the second transmission rotation disc 322 in fig. 1) is evenly provided with a plurality of second protrusions 3221 along the edge, the first protrusions 3121 and the second protrusions 3221 are arranged in a circle, a gap is left between two first protrusions 3121, the screw thread 21 of the rotation disc 2 is embedded between any two adjacent first protrusions 3121 and any two adjacent second protrusions and any two gaps between any two adjacent second protrusions 3221 are left between any two gaps between At the gap between the stems 3221. The thread tooth 21 of the rotary disc 2 is located between any two first protrusions 3121 and any two second protrusions 3221, but both side tooth surfaces of the thread tooth 21 do not simultaneously abut on two adjacent first protrusions 3121 or two adjacent second protrusions 3221. When the rotary table 2 rotates towards one side and drives the first transmission rotary table 312 and the second transmission rotary table 322 to rotate, one side tooth surface of the thread tooth 21 abuts against the side surface of one first protrusion 3121 and the side surface of one second protrusion 3221, and when the rotary table 2 rotates towards the other side and drives the first transmission rotary table 312 and the second transmission rotary table 322 to rotate, the other side tooth surface abuts against the side surface of the adjacent first protrusion 3121 and the side surface of the adjacent second protrusion 3221. The turntable 2 rotates and drives the first transmission turntable 312 and the second transmission turntable 322 to rotate.

The end surface of the turntable 2 near one end of the pen clamping component 3 is provided with an indent 22. The end face of the end, close to the fixing frame 1, of the rotary table 2 is provided with an annular bulge 23, the fixing frame 1 is provided with a circular groove 13, and the annular bulge 23 is rotatably connected in the circular groove 13 and used for guiding the rotary table during rotation.

The first projection 3121 and the second projection 3221 are shaped as circular truncated cones. The number of the first protrusions 3121 and the second protrusions 3221 is fifteen. Fifteen rotations of the dial 2 make one rotation of the first projection 3121 and the second projection 3221. The pencil advances once after fifteen times corresponding to the rocker arm, and the pencil advancing speed is most suitable for the pencil sharpener to sharpen. The number of the first protrusions 3121 and the second protrusions 3221 may be twelve to twenty, and an ideal pen feeding speed may also be achieved.

The bottom of the round groove 13 on the fixing frame 1 and the center of the annular bulge 23 of the rotary table 2 are both provided with pen inlet holes, and as shown in fig. 4, the rocker arm of the pencil sharpener rotates the movement which drives the rotary table 2 to rotate. The first pen clamping rotating shaft 31, the first transmission rotating disc 312 and the first pen clamping roller 311 form a left half part of the pen clamping assembly 3, the second pen clamping rotating shaft 32, the second transmission rotating disc 322 and the second pen clamping roller 321 form a right half part of the pen clamping assembly 3, the left half part and the right half part of the pen clamping assembly 3 are rotationally symmetrical by taking the pen inlet hole as a center, and the rotating directions of the first pen clamping rotating shaft 31 and the second pen clamping rotating shaft 32 are opposite.

The rocker arm of the pencil sharpener rotates the movement, the movement drives the turntable 2 to rotate, the thread teeth 21 of the turntable 2 drive the first transmission turntable 312 and the second transmission turntable 322, the first transmission turntable 312 and the second transmission turntable 322 respectively drive the first pencil clamping rotating shaft 31 and the second pencil clamping rotating shaft 32 to rotate, the pencil is inserted into the gap between the first pencil clamping roller 311 and the second pencil clamping roller 321, and the first pencil clamping roller 311 and the second pencil clamping roller 321 drive the pencil to advance or withdraw when the first pencil clamping rotating shaft 31 and the second pencil clamping rotating shaft 32 rotate. The rocker arm and the core can adopt the rocker arm and the core used in the prior art pencil sharpener, such as an automatic pencil feeding mechanism and a rocker arm and a hob cutter mechanism in the pencil sharpener disclosed in Chinese patent publication No. CN 107284095A.

The above embodiment is only the preferred embodiment of the present invention, the present invention is not limited to the above embodiment, and other structural changes are allowed, all of which are within the scope of the independent claims of the present invention.

Claims

1. An automatic pen feeding mechanism comprises a fixed frame (1), a rotary table (2) and a pen clamping assembly (3), wherein the rotary table (2) is movably connected to one side of the fixed frame (1), and the pen clamping assembly (3) is positioned on one side, far away from the fixed frame (1), of the rotary table (2); a pair of first support frames (11) and a pair of second support frames (12) are further arranged on the same side of the fixed frame (1) and the rotary disc (2), the pen clamping assembly (3) comprises a first pen clamping rotary shaft (31) and a second pen clamping rotary shaft (32) which are arranged in parallel, two ends of the first pen clamping rotary shaft (31) are rotatably connected with the first support frames (11), two ends of the second pen clamping rotary shaft (32) are rotatably connected with the second support frames (12), a first pen clamping roller (311) is arranged on the periphery of the middle part of the first pen clamping rotary shaft (31), and a second pen clamping roller (321) is arranged on the periphery of the middle part of the second pen clamping rotary shaft (32); the method is characterized in that: the side of carousel (2) is equipped with thread tooth (21), the one end of first double-layered pen pivot (31) is equipped with first transmission carousel (312), the second presss from both sides pen pivot (32) and is equipped with second transmission carousel (322) for the other end of first transmission carousel (312), the terminal surface of first double-layered pen gyro wheel (311) one end of first transmission carousel (312) nearly has a plurality of first arch (3121) along the marginal equipartition, the terminal surface of second transmission carousel (322) nearly second double-layered pen gyro wheel (321) one end has a plurality of second arch (3221) along the marginal equipartition, the thread tooth (21) gomphosis of carousel (2) is on the clearance between arbitrary two adjacent first arch (3121) and the clearance between arbitrary two adjacent second arch (3221).

2. The automatic pen feeding mechanism of claim 1, wherein: the first bulge (3121) and the second bulge (3221) are in the shape of a cylinder or a truncated cone.

3. The automatic pen feeding mechanism of claim 1, wherein: the number of the first bulges (3121) and the second bulges (3221) is 12 to 20.

4. An automatic pen feeding mechanism according to claim 3, characterized in that: the number of the first bulges (3121) and the number of the second bulges (3221) are 15.

5. The automatic pen feeding mechanism of claim 1, wherein: the end face of the turntable (2) close to one end of the pen clamping component (3) is provided with an indent (22).

6. The automatic pen feeding mechanism of claim 1, wherein: the pen holder is characterized in that a concave part (301) is arranged in the middle of the first pen clamping rotating shaft (31) and the middle of the second pen clamping rotating shaft (32), and the first pen clamping roller (311) and the second pen clamping roller (321) are sleeved on the periphery of the concave part (301).

7. An automatic pen feeding mechanism according to claim 6, characterized in that: be equipped with bead (302) on the outer wall at first double-layered pen pivot (31) and the second press from both sides the nearly depressed part (301) both ends of pen pivot (32), all be equipped with on the inner wall of first double-layered pen gyro wheel (311) and second press from both sides pen gyro wheel (321) with groove (303) of bead (302) cooperation joint.

8. The automatic pen feeding mechanism of claim 1, wherein: the end face of the turntable (2) close to one end of the fixing frame (1) is provided with an annular bulge (23), the fixing frame (1) is provided with a circular groove (13), and the annular bulge (23) is rotatably connected in the circular groove (13).