CN210833638U - Spiral line drawing mechanism - Google Patents
Spiral line drawing mechanism Download PDFInfo
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- CN210833638U CN210833638U CN201922216038.3U CN201922216038U CN210833638U CN 210833638 U CN210833638 U CN 210833638U CN 201922216038 U CN201922216038 U CN 201922216038U CN 210833638 U CN210833638 U CN 210833638U
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Abstract
The utility model provides a spiral line marking mechanism, which comprises a line marking plate, a conveying mechanism and a frame, wherein the line marking plate is positioned at one side of the frame; the rack is provided with a clamping mechanism, a stroke line swinging angle mechanism, an eccentric wheel circle drawing mechanism and a pen pushing mechanism, the scribing board is vertically arranged, the clamping mechanism is positioned on one side of the scribing board, the conveying mechanism is positioned between the clamping mechanism and the scribing board, the pen pushing mechanism is positioned on the outer side of the clamping mechanism, and the clamping mechanism is connected with the stroke line swinging angle mechanism; the stroke line swinging angle mechanism is connected with the eccentric wheel circle drawing mechanism; after the pen clamping mechanism clamps pens on the conveying mechanism, the pen pushing mechanism pushes the pens on the clamping mechanism out, the stroke line swinging angle mechanism drives the pen swinging angle on the clamping mechanism, and the eccentric wheel circle drawing mechanism drives the pens on the clamping mechanism to draw lines. Adopt the technical scheme of the utility model, realized the automation of pen and rule, improved the quality, uniformity and the reliability of ruling.
Description
Technical Field
The utility model relates to a draw helix mechanism.
Background
The pen is a necessary article in daily life, study and work, the quality of the pen needs to be detected in the production process of the pen, and the stroke line detection is an important link for ensuring the quality of the pen. The prior art adopts manual marking detection, and is low in efficiency, boring and tasteless in work and high in factory input cost. Therefore, it is necessary to realize automatic detection, and when the pen is automatically detected, how to ensure the consistency and reliability of the stroke spiral is very important.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model discloses a draw helix mechanism realizes drawing the helix automatically, has improved efficiency.
To this end, the technical scheme of the utility model is that:
a spiral line marking mechanism comprises a marking plate, a conveying mechanism and a rack, wherein the marking plate is positioned on one side of the rack;
the rack is provided with a clamping mechanism, a stroke line swinging angle mechanism, an eccentric wheel circle drawing mechanism and a pen pushing mechanism, the scribing board is vertically arranged, the clamping mechanism is positioned on one side of the scribing board, the conveying mechanism is positioned between the clamping mechanism and the scribing board, the pen pushing mechanism is positioned on the outer side of the clamping mechanism, and the clamping mechanism is connected with the stroke line swinging angle mechanism; the stroke line swinging angle mechanism is connected with the eccentric wheel circle drawing mechanism,
after the pen clamping mechanism clamps pens on the conveying mechanism, the pen pushing mechanism pushes the pens on the clamping mechanism out, the stroke line swinging angle mechanism drives the pen swinging angle on the clamping mechanism, and the eccentric wheel circle drawing mechanism drives the pens on the clamping mechanism to draw lines.
By adopting the technical scheme, the conveying mechanism conveys the pen with the test to a position between the scribing board and the clamping mechanism, the clamping mechanism clamps one end of the pen, the pen pushing mechanism pushes the pen to the scribing board to enable the pen to be in contact with the scribing board, the eccentric wheel circle drawing mechanism acts to drive the stroke line swinging angle mechanism to drive the clamping mechanism and the pen above the clamping mechanism to perform scribing action. After the line is drawn, the pen pushing mechanism resets, the stroke line swinging angle mechanism resets, the clamping mechanism resets, and the pen returns to the conveying mechanism.
As a further improvement of the present invention, the conveying mechanism includes an up-and-down moving rack and a left-and-right moving rack, the up-and-down moving rack and the left-and-right moving rack are combined and the racks are crossed, and the pen moves on the rack from left to right.
Further, the up-and-down moving rack is positioned between the left-and-right translation racks or on one side of the left-and-right translation racks. When the up-and-down moving rack descends, a pen falls on the left-and-right translation rack and is separated from the up-and-down moving rack, then the left-and-right translation rack moves under the driving of a left-and-right movement servo motor of the rack, the moving high point of the up-and-down moving rack is the working position of all stations, when the pen moves to a corresponding process, the up-and-down moving rack ascends to separate the pen from the left-and-right translation rack and lift the pen to the height of the working position, meanwhile, the left-and-right translation rack returns to the starting position under the driving of the left-and-right movement servo motor of the.
As a further improvement of the utility model, it includes paper feeding mechanism, be equipped with the marking paper on the marking plate, paper feeding mechanism will mark on the marking paper carries the marking plate. Further, the scribing board is a glass board.
Further, the paper feeding mechanism comprises a paper feeding compression roller. Further, the paper collecting mechanism comprises a paper collecting press roller, and the paper feeding press roller and the paper collecting press roller are positioned on two sides of the scribing plate.
As a further improvement of the utility model, the clamping mechanism comprises an upper clamping plate, a lower clamping plate and a pen holder clamping cylinder, the upper clamping plate and the lower clamping plate are respectively connected with the pen holder clamping cylinder, and the upper clamping plate and the lower clamping plate are provided with stations for accommodating pens; further, the inner diameter of a station for accommodating pens formed after the upper clamping plate and the lower clamping plate are folded is slightly larger than the outer diameter of the pens.
As the utility model discloses a further improvement, press from both sides and get mechanism and include punch holder guide pin and punch holder guide pin bushing, the punch holder passes through the punch holder guide pin and is connected with the punch holder guide pin bushing, the punch holder guide pin is connected with pen-holder die clamping cylinder.
As a further improvement of the utility model, the pen pushing mechanism comprises a push rod and a pen pushing rod driving mechanism, and the push rod is connected with the pen pushing rod driving mechanism.
As a further improvement of the utility model, it is connected with the push rod through pushing away the pen holder slider to push away pen holder actuating mechanism, it is equipped with the spring to push away between pen holder slider and the push rod. Further, the pen pushing rod driving mechanism is a pen pushing rod cylinder.
As a further improvement of the utility model, eccentric wheel circle drawing mechanism includes eccentric shaft, horizontally connect board, the actuating mechanism of drawing a circle, horizontally connect board and eccentric shaft are connected, draw a circle actuating mechanism drive eccentric shaft and rotate, drive horizontally connect board and be the circular orbit motion, horizontally connect board and stroke line pendulum angle mechanism are connected.
Furthermore, the eccentric wheel circle drawing mechanism comprises a horizontal sliding block and a vertical sliding block, a horizontal connecting plate is connected with the horizontal sliding block and the vertical sliding block, and the horizontal connecting plate is driven by an eccentric shaft to move in a circular track under the guidance of the horizontal sliding block and the vertical sliding block.
As a further improvement of the present invention, the stroke line swinging angle mechanism comprises an angle inclined plate and an angle inclined cylinder, the angle inclined cylinder drives the angle inclined plate to move, and the angle inclined plate is connected with the horizontal connecting plate;
the angle inclined plate is connected with the lower clamping plate through a lower clamping plate supporting plate, the angle inclined plate is connected with the pen pushing mechanism through a pen pushing supporting piece, and the angle inclined plate is connected with the pen holder clamping cylinder through a clamping supporting column; the circle drawing driving mechanism drives the angle inclined plate to do circular track motion through the horizontal connecting plate, and simultaneously drives the clamping mechanism and the pen pushing mechanism to do circular track motion together.
As a further improvement of the utility model, the stroke line pendulum angle mechanism includes first angle slope pivot, second angle slope pivot, third angle slope pivot, horizontal connecting plate, first angle slope pivot, angle slope cylinder, second angle slope pivot, angle hang plate and third angle slope pivot constitute link structure.
As a further improvement of the utility model, draw helix mechanism and include elevating system, the frame is connected with elevating system, elevating system drive frame and the clamp on it get mechanism, stroke line pendulum angle mechanism, eccentric wheel cyclograph mechanism and push away a mechanism and reciprocate together.
By adopting the technical scheme, the clamping mechanism, the stroke line swinging angle mechanism, the eccentric wheel circle drawing mechanism and the pen pushing mechanism are arranged on the lifting mechanism and move up and down under the driving of the lifting mechanism, so that the pen is lifted up and put down from the conveying mechanism; the resultant motion of the eccentric wheel circle drawing mechanism and the lifting mechanism enables parts driven by the eccentric shaft to realize spiral line motion, so that the clamped pen can draw a spiral line better.
Furthermore, elevating system includes lift sharp module and lift servo motor, lift sharp module and lift servo motor are connected.
Compared with the prior art, the beneficial effects of the utility model are that:
adopt the technical scheme of the utility model, realized the automation of pen and rule, when drawing the helix to the pen, paper is motionless, and marking mechanism is removing, has improved the quality, uniformity and the reliability of ruling, and the dynamics is controllable simultaneously, has improved five to six times to the life of ruling glass.
Drawings
Fig. 1 is a schematic structural diagram of a spiral scribing mechanism of the present invention.
Fig. 2 is a schematic structural diagram of another angle of the spiral scribing mechanism of the present invention.
Fig. 3 is a schematic view of a partial structure of a spiral scribing mechanism of the present invention.
Fig. 4 is a schematic structural diagram of a conveying mechanism according to an embodiment of the present invention.
The reference numerals include:
1-a frame, 2-a conveying mechanism, 3-a clamping mechanism, 4-a pen pushing mechanism, 5-an eccentric wheel circle drawing mechanism, 6-a stroke line swinging angle mechanism, 7-a scribing plate, 8-a paper feeding mechanism, 9-a lifting mechanism and 10-a pen;
21-up and down movement rack, 22-left and right translation rack;
31-an upper clamping plate, 32-a lower clamping plate, 33-a clamping cylinder, 34-an upper clamping plate guide shaft, 35-an upper clamping plate guide sleeve and 36-a lower clamping plate support plate;
41-push rod, 42-pen rod pushing cylinder and 43-pen rod pushing slide block;
51-eccentric shaft, 52-horizontal connecting plate, 53-circle-drawing driving mechanism, 54-horizontal sliding block and 55-vertical sliding block;
61-angle inclined plate, 62-angle inclined cylinder, 63-first angle inclined rotating shaft, 64-second angle inclined rotating shaft and 65-third angle inclined rotating shaft;
81-paper feeding press roller, 82-paper collecting air expansion shaft, 83-paper releasing air expansion shaft, 84-paper feeding stepping motor, 85-paper releasing air expansion shaft and paper collecting air expansion shaft clutch structure and 86-paper collecting motor;
91-lifting linear module, 92-lifting servo motor.
Detailed Description
Preferred embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, a spiral marking mechanism comprises a marking plate 7, a conveying mechanism 2, a paper feeding mechanism 8, a lifting mechanism 9 and a frame 1, wherein the marking plate 7 is positioned at one side of the frame 1; the pen drawing machine is characterized in that a clamping mechanism 3, a stroke line swinging angle mechanism 6, an eccentric wheel circle drawing mechanism 5 and a pen pushing mechanism 4 are arranged on the machine frame 1, the scribing plate 7 is vertically arranged, the clamping mechanism 3 is positioned on one side of the scribing plate 7, the conveying mechanism 2 is positioned between the clamping mechanism 3 and the scribing plate 7, the pen pushing mechanism 4 is positioned on the outer side of the clamping mechanism 3, and the clamping mechanism 3 is connected with the stroke line swinging angle mechanism 6; the stroke line swinging angle mechanism 6 is connected with the eccentric wheel circle drawing mechanism 5, after the pen 10 on the conveying mechanism 2 is clamped by the clamping mechanism 3, the pen 10 on the clamping mechanism 3 is pushed out by the pen pushing mechanism 4, so that the pen 10 is contacted with paper on the scribing plate 7, the stroke line swinging angle mechanism 6 drives the pen swinging angle on the clamping mechanism 3, and the eccentric wheel circle drawing mechanism 5 drives the pen 10 on the clamping mechanism 3 to draw lines.
The scribing board 7 is provided with scribing paper, and the paper feeding mechanism 8 conveys the scribing paper to the scribing board 7. Further, the scribing board 7 is a glass plate. Further, the paper feeding mechanism 8 includes a paper feeding compression roller 81 and a paper collecting compression roller, and the paper feeding compression roller 81 and the paper collecting compression roller are located on two sides of the scribing plate 7, which may be an upper side and a lower side, or a left side and a right side.
The clamping mechanism 3 comprises an upper clamping plate 31, a lower clamping plate 32 and a penholder clamping cylinder 33, the upper clamping plate 31 and the lower clamping plate 32 are respectively connected with the penholder clamping cylinder 33, and the upper clamping plate 31 and the lower clamping plate 32 are provided with stations for accommodating pens 10; further, the inner diameter of the station formed by the closed upper clamp plate 31 and lower clamp plate 32 for accommodating the pen 10 is slightly larger than the outer diameter of the pen 10. The clamping mechanism 3 comprises an upper clamping plate guide shaft 34 and an upper clamping plate guide sleeve 35, the upper clamping plate 31 is connected with the upper clamping plate guide sleeve 35 through the upper clamping plate guide shaft 34, and the upper clamping plate guide shaft 34 is connected with the pen holder clamping cylinder 33.
The pen pushing mechanism 4 comprises a push rod 41 and a pen pushing rod cylinder 42, and the push rod 41 is connected with the pen pushing rod cylinder 42. The penholder pushing cylinder 42 is connected with the push rod 41 through a penholder pushing slide block 43, and a spring is arranged between the penholder pushing slide block 43 and the push rod 41.
The eccentric wheel circle drawing mechanism 5 comprises an eccentric shaft 51, a horizontal connecting plate 52 and a circle drawing driving mechanism 53, wherein the horizontal connecting plate 52 is connected with the eccentric shaft 51, the circle drawing driving mechanism 53 drives the eccentric shaft 51 to rotate to drive the horizontal connecting plate 52 to do circular track motion, and the horizontal connecting plate 52 is connected with the stroke line swinging angle mechanism 6. Further, the eccentric wheel circle drawing mechanism 5 comprises a horizontal sliding block 54 and a vertical sliding block 55, the horizontal connecting plate 52 is connected with the horizontal sliding block 54 and the vertical sliding block 55, and the horizontal connecting plate 52 is driven by the eccentric shaft 51 to make circular track motion under the guidance of the horizontal sliding block 54 and the vertical sliding block 55. The circle drawing driving mechanism 53 is a circle drawing servo motor.
The stroke line swinging angle mechanism 6 comprises an angle inclined plate 61, an angle inclined cylinder 62, a first angle inclined rotating shaft 61, a second angle inclined rotating shaft 62 and a third angle inclined rotating shaft 63, wherein the angle inclined cylinder 62 drives the angle inclined plate 61 to move, and the angle inclined plate 61 is connected with the horizontal connecting plate 52; the angle inclined plate 61 is connected with the lower clamping plate 32 through the lower clamping plate supporting plate 36, the angle inclined plate 61 is connected with the pen pushing mechanism 4 through a pen pushing supporting piece, and the angle inclined plate 61 is connected with the pen holder clamping cylinder 33 through a clamping supporting column; the circle drawing driving mechanism 53 drives the angle inclined plate 61 to do circular track motion through the horizontal connecting plate 52, and simultaneously drives the clamping mechanism 3 and the pen pushing mechanism 4 to do circular track motion together. The horizontal connecting plate 52, the first angle inclination rotating shaft 61, the angle inclination cylinder 62, the second angle inclination rotating shaft 62, the angle inclination plate 61 and the third angle inclination rotating shaft 63 are sequentially connected to form a connecting rod structure.
The machine frame 1 is connected with a lifting mechanism 9, and the lifting mechanism 9 drives the machine frame 1 and the clamping mechanism 3, the stroke line swinging angle mechanism 6, the eccentric wheel circle drawing mechanism 5 and the pen pushing mechanism 4 on the machine frame to move up and down together. The lifting mechanism 9 comprises a lifting linear module 91 and a lifting servo motor 92, and the lifting linear module 91 is connected with the lifting servo motor 92.
As shown in fig. 1 and 2, the feeding mechanism 2 includes an up-and-down moving rack 21 and a left-and-right translating rack 22, the up-and-down moving rack 21 and the left-and-right translating rack 22 are combined and the racks are crossed, and the pen 10 moves on the racks from left to right. As shown in fig. 4, the up-down moving rack 21 is located between the left and right translation racks 22, when the up-down moving rack 21 descends, the pen falls on the left and right translation racks 22 and is separated from the up-down moving rack 21, then the left and right translation racks 22 move under the driving of the rack left-right movement servo motor, the moving high point of the up-down moving rack 21 is the working position, when the pen moves to the corresponding process, the up-down moving rack 21 ascends to separate the pen from the left and right translation racks 22 and lift the pen to the working position height, and simultaneously, the left and right translation racks 21 return to the starting position under the driving of the rack left-right movement servo motor, and the up-down moving rack 21 and the left and right translation racks 22 circularly move.
The paper feeding mechanism 8 also comprises a paper collecting air expansion shaft 82, a paper releasing air expansion shaft 83, a paper feeding stepping motor 84, a clutch mechanism 85 and a paper collecting motor 86; the clutch mechanism 85 is connected with the paper releasing air expansion shaft 82 and the paper collecting air expansion shaft 83, the paper collecting motor 86 is connected with the paper collecting air expansion shaft 82, and the paper feeding stepping motor is connected with the paper releasing air expansion shaft 83.
Description of the principle of action: the circle drawing servo motor drives the eccentric shaft 51 to rotate, the horizontal connecting plate 52 makes a circular track motion under the guiding of the horizontal sliding block 54 and the vertical sliding block 55 and the driving of the eccentric shaft 51, and parts fixed above the horizontal connecting plate 52 also make a circular track motion. The horizontal connecting plate 52, the first angle inclination rotating shaft 61, the angle inclination cylinder 62, the second angle inclination rotating shaft 62, the angle inclination plate 61 and the third angle inclination rotating shaft 63 are sequentially connected to form a connecting rod structure. When angle tilt cylinder 62 is extended, angle tilt plate 61 is tilted, and when angle tilt cylinder 62 is retracted, angle tilt plate 61 is horizontal. The lower clamp plate support plate 36, the pen pushing support member, and the clamping support post are fitted to the angle-inclined plate 61. The lower clamp 32 is fitted on the clamp support plate, and the upper clamp 31 is fitted on the upper clamp guide shaft 34. The middle pen is clamped by the upper clamping plate and the lower clamping plate 32 when the clamping cylinder 33 extends out, the pen can float back and forth between the clamping plates, the pen is enabled to do spiral line motion together, the upper clamping plate and the lower clamping plate 32 are separated when the clamping cylinder 33 retracts, the pen is placed back on the rack, and the pen on the rack moves between the upper clamping plate and the lower clamping plate 32. When the upper and lower clamping plates 32 clamp the pen, the pen rod pushing cylinder 42 extends out, the pushing rod 41 pushes against the tail end of the pen rod under the action of the spring force, the pen point is pressed on the scribing paper, and the pen point and the paper are in good contact to draw a spiral line. The whole set of scribing structure is arranged on the lifting linear module 91 and moves up and down under the driving of the lifting servo motor 92, so that the pen is lifted up and put down from the rack; the circle drawing servo motor drives the eccentric shaft 51 and the lifting servo motor 92 drives the lifting linear module 91 to move in a combined mode, so that parts driven by the eccentric shaft 51 move in a spiral line mode, and the clamped pen 10 draws the spiral line.
The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the shape and structure of the present invention are within the protection scope of the present invention.
Claims (10)
1. A draw spiral line mechanism which characterized in that: the automatic scribing machine comprises a scribing plate, a conveying mechanism and a rack, wherein the scribing plate is positioned on one side of the rack;
the rack is provided with a clamping mechanism, a stroke line swinging angle mechanism, an eccentric wheel circle drawing mechanism and a pen pushing mechanism, the scribing board is vertically arranged, the clamping mechanism is positioned on one side of the scribing board, the conveying mechanism is positioned between the clamping mechanism and the scribing board, the pen pushing mechanism is positioned on the outer side of the clamping mechanism, and the clamping mechanism is connected with the stroke line swinging angle mechanism; the stroke line swinging angle mechanism is connected with the eccentric wheel circle drawing mechanism;
after the pen clamping mechanism clamps pens on the conveying mechanism, the pen pushing mechanism pushes the pens on the clamping mechanism out, the stroke line swinging angle mechanism drives the pen swinging angle on the clamping mechanism, and the eccentric wheel circle drawing mechanism drives the pens on the clamping mechanism to draw lines.
2. The scribing mechanism of claim 1, wherein: the conveying mechanism comprises an up-and-down moving rack and a left-and-right translation rack, the up-and-down moving rack and the left-and-right translation rack are combined, and the pen moves on the racks from left to right.
3. The scribing mechanism of claim 1, wherein: the paper feeding mechanism conveys the marking paper to the marking board.
4. The scribing mechanism of claim 1, wherein: the clamping mechanism comprises an upper clamping plate, a lower clamping plate and a pen holder clamping cylinder, the upper clamping plate and the lower clamping plate are respectively connected with the pen holder clamping cylinder, and the upper clamping plate and the lower clamping plate are provided with stations for accommodating pens;
the pen pushing mechanism comprises a push rod and a pen pushing rod driving mechanism, and the push rod is connected with the pen pushing rod driving mechanism.
5. The scribing mechanism of claim 4, wherein: the clamping mechanism comprises an upper clamping plate guide shaft and an upper clamping plate guide sleeve, the upper clamping plate is connected with the upper clamping plate guide sleeve through the upper clamping plate guide shaft, and the upper clamping plate guide shaft is connected with the pen holder clamping cylinder.
6. The scribing mechanism of claim 4, wherein: the pen holder pushing driving mechanism is connected with the push rod through a pen holder pushing sliding block, and a spring is arranged between the pen holder pushing sliding block and the push rod.
7. The scribing mechanism of claim 6, wherein: the eccentric wheel circle drawing mechanism comprises an eccentric shaft, a horizontal connecting plate and a circle drawing driving mechanism, wherein the horizontal connecting plate is connected with the eccentric shaft, the circle drawing driving mechanism drives the eccentric shaft to rotate to drive the horizontal connecting plate to do circular track motion, and the horizontal connecting plate is connected with a stroke line swinging angle mechanism; the horizontal connecting plate is connected with the horizontal sliding block and the vertical sliding block, and the horizontal connecting plate is driven by the eccentric shaft to do circular track motion under the guidance of the horizontal sliding block and the vertical sliding block.
8. The scribing mechanism of claim 7, wherein: the stroke line swinging angle mechanism comprises an angle inclined plate and an angle inclined cylinder, the angle inclined cylinder drives the angle inclined plate to move, and the angle inclined plate is connected with the horizontal connecting plate;
the angle inclined plate is connected with the lower clamping plate through a lower clamping plate supporting plate, the angle inclined plate is connected with the pen pushing mechanism through a pen pushing supporting piece, and the angle inclined plate is connected with the pen holder clamping cylinder through a clamping supporting column; the circle drawing driving mechanism drives the angle inclined plate to do circular track motion through the horizontal connecting plate, and simultaneously drives the clamping mechanism and the pen pushing mechanism to do circular track motion together.
9. The scribing mechanism of claim 8, wherein: the stroke line swinging angle mechanism comprises a first angle inclined rotating shaft, a second angle inclined rotating shaft and a third angle inclined rotating shaft, and the horizontal connecting plate, the first angle inclined rotating shaft, the angle inclined cylinder, the second angle inclined rotating shaft, the angle inclined plate and the third angle inclined rotating shaft are sequentially connected to form a connecting rod structure.
10. The spiral scribing mechanism as claimed in any one of claims 1 to 9, wherein: the pen drawing device comprises a lifting mechanism, wherein the rack is connected with the lifting mechanism, and the lifting mechanism drives the rack and a clamping mechanism, a stroke line swinging angle mechanism, an eccentric wheel circle drawing mechanism and a pen pushing mechanism on the rack to move up and down together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922216038.3U CN210833638U (en) | 2019-12-12 | 2019-12-12 | Spiral line drawing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922216038.3U CN210833638U (en) | 2019-12-12 | 2019-12-12 | Spiral line drawing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210833638U true CN210833638U (en) | 2020-06-23 |
Family
ID=71277723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922216038.3U Active CN210833638U (en) | 2019-12-12 | 2019-12-12 | Spiral line drawing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210833638U (en) |
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2019
- 2019-12-12 CN CN201922216038.3U patent/CN210833638U/en active Active
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