CN112658908A - Pencil grinding equipment for stationery processing - Google Patents

Pencil grinding equipment for stationery processing Download PDF

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Publication number
CN112658908A
CN112658908A CN202110114512.0A CN202110114512A CN112658908A CN 112658908 A CN112658908 A CN 112658908A CN 202110114512 A CN202110114512 A CN 202110114512A CN 112658908 A CN112658908 A CN 112658908A
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China
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rotating shaft
plate
bottom plate
pencil
grinding
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CN202110114512.0A
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Chinese (zh)
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卢涛
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Individual
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Individual
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Priority to CN202110114512.0A priority Critical patent/CN112658908A/en
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Abstract

The invention relates to grinding equipment, in particular to pencil grinding equipment for stationery processing. The invention provides pencil grinding equipment for stationery processing, which reduces the mechanical wear rate and the processing cost. The pencil grinding equipment for stationery processing comprises a bottom plate, a servo motor, a material carrying mechanism, a storage and guide mechanism and the like; the rear of the right side of the bottom plate is provided with a servo motor, the front end of the upper part of the bottom plate is provided with a grinding mechanism, the right side of the bottom plate is provided with a belt mechanism, the belt mechanism is connected with the servo motor and the grinding mechanism, and the upper part of the belt mechanism is provided with a storage guide mechanism. According to the pencil grinding device, the storage and guide mechanism, the pressurizing mechanism and the discharging mechanism are arranged, the storage and guide mechanism is used for placing pencil blank samples into the storage box, so that the device can be stored, the pressing plate, the positioning pin and the first spring are arranged on the left side of the storage box, so that the pressing force of the first long plate and the second long plate is increased, the material containing outer box is arranged on the upper portion of the bottom plate, the ground pencils can be stored in the material containing inner box, and the high efficiency effect of the pencil grinding device is improved tidily and cleanly.

Description

Pencil grinding equipment for stationery processing
Technical Field
The invention relates to grinding equipment, in particular to pencil grinding equipment for stationery processing.
Background
At present, pencils are common stationery in study and work, billions of pencils can be consumed in China every year, the quantity is large, varieties are more and more in various types, the consumption is large, when grinding equipment grinds, scraps generated by the pencils are easy to damage the grinding equipment, the consumption of labor time is large, the efficiency is low, the wear rate of mechanical parts is increased, and the pencil processing cost is increased.
To sum up the problem that the piece easily wears out, expends time, and the processing cost improves designs one kind and clears up the piece, does not hinder the processing part, reduces pencil grinding equipment for stationery processing of mechanical wear rate and processing cost.
Disclosure of Invention
In order to overcome the defects of easy wear-out of scraps, time consumption and high processing cost, the invention aims to provide pencil grinding equipment for processing stationery, which reduces the mechanical wear rate and the processing cost.
The technical scheme is as follows: the utility model provides a pencil grinding equipment for stationery processing, is including bottom plate, servo motor, grinding mechanism, area material mechanism and storage guide mechanism, and right side rear is equipped with servo motor on the bottom plate, and bottom plate upper portion front end is equipped with grinding mechanism, and the right side is equipped with area material mechanism on the bottom plate, and area material mechanism is connected with servo motor and grinding mechanism, and area material mechanism upper portion is equipped with and stores up guide mechanism.
As the improvement of above-mentioned scheme, grinding mechanism is equipped with first pivot including first pivot, emery wheel, first transmission assembly and first fixed pin, bottom plate upper end rotary type, and first pivot middle part is equipped with the emery wheel, and first pivot right-hand member is equipped with first transmission assembly, first transmission assembly and servo motor's output shaft, and first pivot right side is equipped with two first fixed pins, and first transmission assembly is located between two first fixed pins.
As the improvement of the above scheme, the belt material mechanism comprises a second rotating shaft, a second transmission assembly, a third rotating shaft, a bevel gear set, a fourth rotating shaft and a third transmission assembly, the rear side of the right part of the bottom plate is rotatably provided with the second rotating shaft, the second transmission assembly is connected between the first rotating shaft and the second rotating shaft, the third rotating shaft is rotatably provided on the bottom plate, two bevel gear sets are arranged between the left side of the second rotating shaft and the rear side of the third rotating shaft, the bottom plate is rotatably provided with the fourth rotating shaft, and the third transmission assembly is connected in front of the front sides of the third rotating shaft and the fourth rotating shaft.
As the improvement of above-mentioned scheme, still lead the mechanism including storing up, store up and lead the mechanism including support frame, storage case, limit flitch, first long board and second long board, the rear side is equipped with two support frames on the bottom plate, and the support frame top is equipped with first long board, and bottom plate upper portion right side is equipped with the storage case, and the inside front side of storage case is equipped with the limit flitch, and storage case left side is equipped with the second long board, and the second long board is located first long board upper portion, and first long board is connected with the support frame.
As the improvement of above-mentioned scheme, still including loading system, storage case left side is equipped with loading system, loading system is including the fixed plate, the connecting plate, the telescopic link, the clamp plate, locating pin and first spring, bottom plate top and storage case left side all are equipped with the fixed plate, be equipped with the connecting plate between two fixed plates, evenly be equipped with three telescopic link on the connecting plate, three telescopic link bottom is equipped with the clamp plate, three telescopic link upper portion is equipped with three locating pin, three telescopic link downside cover has first spring, clamp plate and connecting plate are connected at first spring both ends.
As the improvement of above-mentioned scheme, still including unloading mechanism, the left side is equipped with unloading mechanism on the bottom plate, unloading mechanism is including the passage, the slide bar, the flourishing material outer container, the second spring, flourishing material inner box, the handle, the bayonet lock, first lug, shifting block and second lug, bottom plate upper portion is equipped with the passage, first pivot top left side of passage intermediate junction, the left side is equipped with left and right sides symmetry slide bar on the bottom plate, be equipped with flourishing material outer container in the middle of the slide bar of both sides, be equipped with the second spring between slide bar of both sides and the flourishing material outer container, the inside flourishing material inner box that is equipped with of flourishing material outer container, flourishing material inner box front side is equipped with the handle, flourishing material outer container front side is equipped with the bayonet lock, the equal longitudinal symmetry in flourishing material inner box left and right sides is equipped with first lug, the slide bar right side is equipped with the shifting block.
As the improvement of the scheme, the scrap blowing device is characterized by further comprising a scrap blowing mechanism, the scrap blowing mechanism is arranged on the right side of the top end of the first rotating shaft and comprises a first straight gear, a fifth rotating shaft, a second straight gear and a fan, the first straight gear is arranged on the right side of the first rotating shaft, the fifth rotating shaft is rotatably arranged on the bottom plate, the second straight gear is arranged on the right side of the fifth rotating shaft, the fan is arranged on the left side of the fifth rotating shaft, and the first straight gear is meshed with the second straight gear.
Compared with the prior art, the invention has the following advantages: 1. according to the pencil grinding device, the storage and guide mechanism, the pressurizing mechanism and the discharging mechanism are arranged, the storage and guide mechanism is used for placing pencil blank samples into the storage box, so that the device can be stored, the pressing plate, the positioning pin and the first spring are arranged on the left side of the storage box, so that the pressing force of the first long plate and the second long plate is increased, the material containing outer box is arranged on the upper portion of the bottom plate, the ground pencils can be stored in the material containing inner box, and the high efficiency effect of the pencil grinding device is improved neatly and cleanly;
2. according to the invention, the scrap blowing mechanism is used for blowing the scraps produced during the operation of the equipment away from the grinding wheel, so that the wear rate of the equipment is reduced, and the cost and time are reduced.
Drawings
Fig. 1 is a schematic perspective view of a first perspective structure according to the present invention.
Fig. 2 is a perspective view of a second perspective structure according to the present invention.
Fig. 3 is a schematic perspective view of the grinding mechanism of the present invention.
Fig. 4 is a schematic perspective view of the belt mechanism of the present invention.
Fig. 5 is a schematic perspective view of the storage and guide mechanism of the present invention.
Fig. 6 is a schematic perspective view of the pressing mechanism of the present invention.
Fig. 7 is a schematic perspective view of the blanking mechanism of the present invention.
Fig. 8 is a schematic perspective view of the chip blowing mechanism of the present invention.
Number designation in the figures: 1. a base plate, 2, a servo motor, 3, a grinding mechanism, 31, a first rotating shaft, 32, a grinding wheel, 33, a first transmission component, 34, a first fixing pin, 4, a belt material mechanism, 41, a second rotating shaft, 42, a second transmission component, 43, a third rotating shaft, 44, a bevel gear set, 45, a fourth rotating shaft, 46, a third transmission component, 5, a storage and guide mechanism, 51, a support frame, 52, a storage box, 53, a material limiting plate, 54, a first long plate, 55, a second long plate, 6, a pressurizing mechanism, 61, a fixing plate, 62, a connecting plate, 63, a telescopic rod, 64, a pressing plate, 65, a positioning pin, 66, a first spring, 7, a blanking mechanism, 71, a material guide pipe, 72, a sliding rod, 73, a material containing outer box, 74, a second spring, 75, a material containing inner box, 76, a handle, 77, a clamping pin, 78, a first lug, 79, a shifting block, 710, a second lug, 8, a scrap blowing mechanism, 81. a first spur gear 82, a fifth rotating shaft 83, a second spur gear 84 and a fan.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present application. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Example 1
A pencil grinding device for stationery processing is shown in figures 1-6 and comprises a bottom plate 1, a servo motor 2, a grinding mechanism 3, a material carrying mechanism 4 and a storage guide mechanism 5, wherein the servo motor 2 is arranged behind the upper right side of the bottom plate 1, the grinding mechanism 3 is arranged at the front end of the upper portion of the bottom plate 1, the material carrying mechanism 4 is arranged on the upper right side of the bottom plate 1, the material carrying mechanism 4 is connected with the servo motor 2 and the grinding mechanism 3, and the storage guide mechanism 5 is arranged on the upper portion of the material carrying mechanism 4.
When people need grind the pencil raw materials, put into storage guide mechanism 5 with the pencil in proper order earlier, then start servo motor 2, servo motor 2 drives grinding mechanism 3, and grinding mechanism 3 drives and takes the motion of material mechanism 4, drives the pencil and moves left, and grinding mechanism 3 grinds the pencil that drives, takes out the pencil that has ground, closes servo motor 2.
Grinding mechanism 3 is including first pivot 31, emery wheel 32, first transmission assembly 33 and first fixed pin 34, and bottom plate 1 upper end rotary type is equipped with first pivot 31, and first pivot 31 middle part is equipped with emery wheel 32, and first pivot 31 right-hand member is equipped with first transmission assembly 33, and first transmission assembly 33 is connected with servo motor 2's output shaft, and first pivot 31 right side is equipped with two first fixed pins 34, and first transmission assembly 33 is located between two first fixed pins 34.
When people need grind the pencil, the output shaft of servo motor 2 rotates and drives first transmission assembly 33, drives first fixed pin 34 and rotates, and first fixed pin 34 rotates and drives emery wheel 32 and rotate, polishes the pencil.
The belt material mechanism 4 comprises a second rotating shaft 41, a second transmission assembly 42, a third rotating shaft 43, a bevel gear set 44, a fourth rotating shaft 45 and a third transmission assembly 46, the rear side of the right part of the bottom plate 1 is rotatably provided with the second rotating shaft 41, the second transmission assembly 42 is connected between the first rotating shaft 31 and the second rotating shaft 41, the third rotating shaft 43 is rotatably provided on the bottom plate 1, two bevel gear sets 44 are arranged between the left side of the second rotating shaft 41 and the rear side of the third rotating shaft 43, the fourth rotating shaft 45 is rotatably provided on the bottom plate 1, and the third transmission assembly 46 is connected in front of the front sides of the third rotating shaft 43 and the fourth rotating shaft 45.
The first rotating shaft 31 rotates to drive the second transmission assembly 42, the second transmission assembly 42 drives the second rotating shaft 41 to rotate, the second rotating shaft 41 drives the bevel gear set 44, the bevel gear set 44 drives the third rotating shaft 43 to rotate, the third rotating shaft 43 rotates to enable the third transmission assembly 46 to rotate, the third transmission assembly 46 rotates to enable the fourth rotating shaft 45 to rotate, the fourth rotating shaft 45 rotates to continuously transmit a pencil in the storage and guide mechanism 5 to the left, and the storage and guide mechanism 5 transmits the pencil to the left and simultaneously grinds the pencil with the grinding mechanism 3.
Still including storing up and leading mechanism 5, store up and lead mechanism 5 including support frame 51, storage case 52, limit flitch 53, first long board 54 and the long board 55 of second, the rear side is equipped with two support frames 51 on the bottom plate 1, the support frame 51 top is equipped with first long board 54, 1 upper portion right side of bottom plate is equipped with storage case 52, the inside front side of storage case 52 is equipped with limit flitch 53, storage case 52 left side is equipped with the long board 55 of second, the long board 55 of second is located first long board 54 upper portion, first long board 54 is connected with support frame 51.
When the pencils are put into the storage box 52, the material limiting plate 53 is arranged in the storage box 52 to limit the unground pencils from sliding down to enter between the first long plate 54 and the second long plate 55, and the material carrying mechanism 4 conveys and polishes the pencils between the first long plate 54 and the second long plate 55.
Still including the loading system 6, storage case 52 left side is equipped with loading system 6, loading system 6 is including fixed plate 61, the connecting plate 62, the telescopic link 63, clamp plate 64, locating pin 65 and first spring 66, 1 top of bottom plate and storage case 52 left side all are equipped with fixed plate 61, be equipped with connecting plate 62 between two fixed plates 61, evenly be equipped with three telescopic link 63 on the connecting plate 62, three telescopic link 63 bottom is equipped with clamp plate 64, three telescopic link 63 upper portion is equipped with three locating pin 65, three telescopic link 63 downside cover has first spring 66, clamp plate 64 and connecting plate 62 are connected at first spring 66 both ends.
Place between first long board 54 and second long board 55 from storage case 52 when the pencil raw materials, make its pencil raw materials turn left the motion, there is the inclined plane pressing plate 64 lower part, and the pencil turns left the motion and makes pressing plate 64 upward movement to extrude first spring 66, make telescopic link 63 upwards, connecting plate 62 touch fixed plate 61 atress downstream and reset, drive the pencil and remove simultaneously and carry out the grinding with grinding mechanism 3 left.
Example 2
On the basis of embodiment 1, as shown in fig. 1, 2, 7 and 8, the blanking device 7 is further included, the blanking device 7 is disposed on the left side of the bottom plate 1, the blanking device 7 includes a material guiding pipe 71, a sliding rod 72, a material containing outer box 73, a second spring 74, a material containing inner box 75, a handle 76, a latch 77, a first bump 78, a shifting block 79 and a second bump 710, the material guiding pipe 71 is disposed on the upper portion of the bottom plate 1, the middle of the material guiding pipe 71 is connected to the left side of the top end of the first rotating shaft 31, the left side and the right side of the bottom plate 1 are provided with the sliding rods 72 symmetrically arranged on the left side and the right side, the material containing outer box 73 is disposed in the middle of the sliding rods 72 on the two sides, the second spring 74 is disposed between the sliding rods 72 on the two sides, the material containing inner box 75 is disposed in the inner box 73, the handle 76 is disposed on the front side of the material containing inner box 75, the latch 77 is disposed on the front, the top end of the left side of the first rotating shaft 31 is provided with a second bump 710, and the top end of the shifting block 79 collides with the second bump 710.
When a pencil passes through the material guide pipe 71 after being polished, the pencil goes down into the material containing inner box 75, the first rotating shaft 31 rotates to drive the second bump 710 to contact the shifting block 79, the sliding rod 72 moves leftwards, the second spring 74 on the left side is extruded, the second spring 74 on the right side is stretched, the material containing outer box 73 moves, when the second bump 710 is not in contact with the shifting block 79, the second spring resets, the material containing outer box 73 resets, the pencil in the material containing inner box 75 can be shaken smoothly, after the material containing inner box 75 is filled, the clamping pin 77 is pressed upwards from the lower side, the handle 76 is pulled open, the material containing inner box 75 is taken out, the pencil is taken out, a space is reserved, the material containing inner box 75 is put back, and the clamping pin 77 is reset.
Still including blowing bits mechanism 8, first pivot 31 top right side is equipped with blows bits mechanism 8, including first spur gear 81, fifth pivot 82, second spur gear 83 and fan 84, first pivot 31 right side is equipped with first spur gear 81, and the last rotation type of bottom plate 1 is equipped with fifth pivot 82, and fifth pivot 82 right side is equipped with second spur gear 83, and fifth pivot 82 left side is equipped with fan 84, first spur gear 81 and the meshing of second spur gear 83.
When the first rotating shaft 31 rotates to drive the first straight gear 81 to rotate, the first straight gear 81 rotates to drive the second straight gear 83 to rotate, the second straight gear 83 drives the fifth rotating shaft 82 to rotate, the fifth rotating shaft 82 rotates to drive the fan 84, the fan 84 rotates to blow away pencil chips on the grinding mechanism 3, and damage to parts is reduced.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims (7)

1. The utility model provides a pencil grinding equipment for stationery processing, including bottom plate (1) and servo motor (2), right side rear is equipped with servo motor (2) on bottom plate (1), characterized by, still including grinding mechanism (3), area material mechanism (4) and storage guide mechanism (5), bottom plate (1) upper portion front end is equipped with grinding mechanism (3), the right side is equipped with area material mechanism (4) on bottom plate (1), area material mechanism (4) are connected with servo motor (2) and grinding mechanism (3), area material mechanism (4) upper portion is equipped with and stores up guide mechanism (5).
2. The pencil grinding device for stationery processing according to claim 1, wherein the grinding mechanism (3) comprises a first rotating shaft (31), a grinding wheel (32), a first transmission assembly (33) and first fixing pins (34), the first rotating shaft (31) is rotatably arranged at the upper end of the base plate (1), the grinding wheel (32) is arranged in the middle of the first rotating shaft (31), the first transmission assembly (33) is arranged at the right end of the first rotating shaft (31), the first transmission assembly (33) is connected with an output shaft of the servo motor (2), the two first fixing pins (34) are arranged at the right side of the first rotating shaft (31), and the first transmission assembly (33) is located between the two first fixing pins (34).
3. The pencil grinding device for stationery processing according to claim 2, wherein the material carrying mechanism (4) comprises a second rotating shaft (41), a second transmission assembly (42), a third rotating shaft (43), a bevel gear set (44), a fourth rotating shaft (45) and a third transmission assembly (46), the second rotating shaft (41) is rotatably arranged on the right rear side of the bottom plate (1), the second transmission assembly (42) is connected between the first rotating shaft (31) and the second rotating shaft (41), the third rotating shaft (43) is rotatably arranged on the bottom plate (1), two bevel gear sets (44) are arranged between the left side of the second rotating shaft (41) and the rear side of the third rotating shaft (43), the fourth rotating shaft (45) is rotatably arranged on the bottom plate (1), and the third transmission assembly (46) is connected in front of the front sides of the third rotating shaft (43) and the fourth rotating shaft (45).
4. The pencil grinding device for stationery processing as defined in claim 3, further comprising a storage and guide mechanism (5), wherein the storage and guide mechanism (5) comprises a support frame (51), a storage box (52), a material limiting plate (53), a first long plate (54) and a second long plate (55), two support frames (51) are arranged on the rear side of the bottom plate (1), the first long plate (54) is arranged on the top of the support frame (51), the storage box (52) is arranged on the right side of the upper portion of the bottom plate (1), the material limiting plate (53) is arranged on the front side inside the storage box (52), the second long plate (55) is arranged on the left side of the storage box (52), the second long plate (55) is positioned on the upper portion of the first long plate (54), and the first long plate (54) is connected with the support frame (51).
5. The pencil grinding device for stationery processing as defined in claim 4, further comprising a pressurizing mechanism (6), wherein the pressurizing mechanism (6) is provided on the left side of the storage box (52), the pressurizing mechanism (6) comprises a fixing plate (61), a connecting plate (62) and an expansion link (63), clamp plate (64), locating pin (65) and first spring (66), bottom plate (1) top and storage case (52) left side all are equipped with fixed plate (61), be equipped with connecting plate (62) between two fixed plate (61), evenly be equipped with three telescopic link (63) on connecting plate (62), three telescopic link (63) bottom is equipped with clamp plate (64), three telescopic link (63) upper portion is equipped with three locating pin (65), three telescopic link (63) downside cover has first spring (66), clamp plate (64) and connecting plate (62) are connected at first spring (66) both ends.
6. The pencil grinding device for processing stationery as defined in claim 5, further comprising a blanking mechanism (7), wherein the blanking mechanism (7) is disposed on the left side of the bottom plate (1), the blanking mechanism (7) comprises a material guiding tube (71), a sliding rod (72), an outer material containing box (73), a second spring (74), an inner material containing box (75), a handle (76), a bayonet (77), a first bump (78), a shifting block (79) and a second bump (710), the material guiding tube (71) is disposed on the upper portion of the bottom plate (1), the middle of the material guiding tube (71) is connected to the left side of the top end of the first rotating shaft (31), the left side of the bottom plate (1) is provided with left and right symmetrical sliding rods (72), the outer material containing box (73) is disposed between the sliding rods (72) on both sides, the second spring (74) is disposed between the sliding rods (72) on both sides and the outer material containing box (73), the inner material containing box (75) is disposed inside the, the front side of the material containing inner box (75) is provided with a handle (76), the front side of the material containing outer box (73) is provided with a bayonet lock (77), the left side and the right side of the material containing inner box (75) are respectively provided with a first convex block (78) in an up-and-down symmetrical manner, the right side of the sliding rod (72) is provided with a shifting block (79), the top end of the left side of the first rotating shaft (31) is provided with a second convex block (710), and the top end of the shifting block (79) collides with the second convex block (.
7. The pencil grinding device for stationery processing as defined in claim 6, further comprising a scrap blowing mechanism (8), wherein the scrap blowing mechanism (8) is disposed on the right side of the top end of the first rotating shaft (31), and comprises a first spur gear (81), a fifth rotating shaft (82), a second spur gear (83) and a fan (84), the first spur gear (81) is disposed on the right side of the first rotating shaft (31), the fifth rotating shaft (82) is rotatably disposed on the bottom plate (1), the second spur gear (83) is disposed on the right side of the fifth rotating shaft (82), the fan (84) is disposed on the left side of the fifth rotating shaft (82), and the first spur gear (81) is engaged with the second spur gear (83).
CN202110114512.0A 2021-01-28 2021-01-28 Pencil grinding equipment for stationery processing Pending CN112658908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110114512.0A CN112658908A (en) 2021-01-28 2021-01-28 Pencil grinding equipment for stationery processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110114512.0A CN112658908A (en) 2021-01-28 2021-01-28 Pencil grinding equipment for stationery processing

Publications (1)

Publication Number Publication Date
CN112658908A true CN112658908A (en) 2021-04-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110114512.0A Pending CN112658908A (en) 2021-01-28 2021-01-28 Pencil grinding equipment for stationery processing

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CN (1) CN112658908A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203567429U (en) * 2013-11-21 2014-04-30 济南蜜蜂笔业有限公司 Point sharpening and cutting integrated machine for pencils
CN103846763A (en) * 2014-03-18 2014-06-11 济南蜜蜂笔业有限公司 Pencil sharpening and top-grinding all-in-one machine
CN108973429A (en) * 2018-09-29 2018-12-11 蚌埠神龙笔业有限公司 A kind of pencil grinding head device
CN109227385A (en) * 2018-11-28 2019-01-18 安徽省徽腾智能交通科技有限公司 A kind of working method of the bar grinding attachment of automobile parts
CN111906607A (en) * 2020-08-28 2020-11-10 赖宁辉 Rolling pin grinding device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203567429U (en) * 2013-11-21 2014-04-30 济南蜜蜂笔业有限公司 Point sharpening and cutting integrated machine for pencils
CN103846763A (en) * 2014-03-18 2014-06-11 济南蜜蜂笔业有限公司 Pencil sharpening and top-grinding all-in-one machine
CN108973429A (en) * 2018-09-29 2018-12-11 蚌埠神龙笔业有限公司 A kind of pencil grinding head device
CN109227385A (en) * 2018-11-28 2019-01-18 安徽省徽腾智能交通科技有限公司 A kind of working method of the bar grinding attachment of automobile parts
CN111906607A (en) * 2020-08-28 2020-11-10 赖宁辉 Rolling pin grinding device

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Application publication date: 20210416