CN106864845B - Box suction mechanism for paper box of oval-circular gear combined planetary gear train - Google Patents
Box suction mechanism for paper box of oval-circular gear combined planetary gear train Download PDFInfo
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- CN106864845B CN106864845B CN201710228732.XA CN201710228732A CN106864845B CN 106864845 B CN106864845 B CN 106864845B CN 201710228732 A CN201710228732 A CN 201710228732A CN 106864845 B CN106864845 B CN 106864845B
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- wheel
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- planetary gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
- B65B43/14—Feeding individual bags or carton blanks from piles or magazines
- B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
- B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
Abstract
The invention belongs to the field of carton packaging machinery. The star wheel system box taking mechanism can reduce the speed and the acceleration of box taking points and box placing points so as to improve the running reliability of the mechanism. The technical scheme is as follows: a box suction mechanism of an oval-circular gear combined planetary gear train paper box comprises a rotating shaft which is rotatably positioned on a fixed support, the left side of the rotating shaft is driven by a power mechanism, a sun gear which is coaxially arranged with the rotating shaft is fixed at the right end of the fixed support, a rotating disc which is used as a planetary gear support is fixed at the right end of the rotating shaft after penetrating through an opening in the center of the sun gear, and at least one pair of a transmission short shaft and a transmission long shaft which are parallel to the axis of the rotating disc are rotatably positioned on the rotating disc; an elliptical middle wheel and a circular middle wheel meshed with the sun wheel are fixed on the transmission short shaft, an elliptical planet wheel meshed with the elliptical middle wheel is fixed at one end of the transmission long shaft, and a sucker used for sucking the paper box is fixed at the other end of the transmission long shaft through a sucker support.
Description
Technical Field
The invention belongs to the field of carton packaging machinery, in particular to a carton suction mechanism of an oval-circular gear combined planetary gear train.
Background
China is gradually becoming the world center for development of packaging industry and market development, and the proportion of carton packaging in the packaging industry is large. Currently, the current practice is. Compared with the foreign countries, the paper box packing machines at home and abroad have certain gap in technology and quality. Most of the carton boxing machines produced by enterprises at the current stage of China are medium-low speed, and the main reason why the high speed cannot be designed is that the carton suction mechanism of the carton boxing machine cannot meet the high-speed requirement on the mechanism and the parameters. Some domestic scholars research the high speed of the box suction mechanism, and provide an inner cycloid locus of a tricuspid valve line formed by a circular gear planetary gear train for the box suction locus. The track is not influenced by the position of the box support in the pulling process of taking the box, and the front and back angles of the box are always changed in the box sucking process, so that the requirements of medium and high speed can be met in time and speed. The defects that in the high-speed process, the speed and the acceleration of the box sucking point and the box placing point on the track are high, and the success rate of taking the box and the accuracy rate of placing the box are directly influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a star wheel train box taking mechanism with an elliptic-circular gear as a transmission mechanism, which can reduce the speed and the acceleration of box taking points and box placing points, can better stably suck the paper boxes from a box bracket and stably place the paper boxes on a conveyor belt so as to improve the running reliability of the mechanism.
The technical scheme adopted by the invention is as follows:
the utility model provides an oval-round gear combination planetary gear train carton inhales box mechanism, includes rotationally fixes a position on fixing support and the left side by power unit driven rotation axis, its characterized in that: a sun wheel which is coaxially arranged with the rotating shaft is fixed at the right end of the fixed support, a rotating disc which is used as a planet wheel support is fixed at the right end of the rotating shaft after the right end of the rotating shaft penetrates through an opening at the center of the sun wheel, and at least one pair of a transmission short shaft and a transmission long shaft which are parallel to the axis of the rotating disc are rotatably positioned on the rotating disc; an elliptical middle wheel and a circular middle wheel meshed with the sun wheel are fixed on the transmission short shaft, an elliptical planet wheel meshed with the elliptical middle wheel is fixed at one end of the transmission long shaft, and a sucker used for sucking the paper box is fixed at the other end of the transmission long shaft through a sucker support.
The sucking disc is communicated with an external air source through air guide pipelines sequentially arranged on the transmission long shaft, the rotating disc and the rotating shaft and an air pipe joint arranged on the fixed support.
Preferably, the curve length of the elliptic intermediate wheel and the elliptic planetary wheel pitch is 1.
Preferably, the transmission ratio of the sun wheel to the circular intermediate wheel is 3.
Preferably, the ratio of the distance from the center of the sun wheel to the axis of the elliptical planet wheel to the distance from the axis of the elliptical planet wheel to the surface of the sucking disc is less than 2.
Preferably, the transmission short shaft and the transmission long shaft are rotatably positioned on the rotating disk through bearings.
The invention has the beneficial effects that: the new orbit that this mechanism formed can reduce and get the box point and put the speed and the acceleration of box point, can more steadily and effectually absorb the carton from the box support get off to steadily place on the conveyer belt reliably, thereby showing the reliability that has improved the mechanism operation. Meanwhile, the highest acceleration is reduced, the corresponding inertia force is reduced, the requirement on the wear resistance of the mechanism is also reduced, and the service life is ensured.
Drawings
FIG. 1 is a schematic three-dimensional structure diagram of a paper box suction mechanism of an oval-circular gear combination planetary gear train.
Fig. 2 is a left-side view structure schematic diagram of the carton suction mechanism of the oval-circular gear combination planetary gear train.
FIG. 3 is a schematic three-dimensional structure diagram of a rotating disc in a carton suction mechanism of an oval-circular gear combination planetary gear train.
Fig. 4 is a schematic diagram comparing displacement trajectories of an elliptic-circular gear combined planetary gear train and a circular gear combined planetary gear train in one cycle period.
Fig. 5 is a schematic diagram showing the comparison of the speed trajectories of the oval-circular gear combined planetary gear train and the circular gear combined planetary gear train in one cycle period.
Fig. 6 is a schematic diagram comparing acceleration trajectories of an elliptical-circular gear combined planetary gear train and a circular gear combined planetary gear train in one cycle period.
Detailed Description
The present invention will be further described with reference to the following examples, but the present invention is not limited to the following examples.
A box suction mechanism of a paper box with an oval-circular gear combined planetary gear train comprises a fixed support 11 and a rotating shaft 1 which is positioned on the fixed support in a rotatable manner and the left side of which is driven by a power mechanism; the power mechanism is typically a motor that drives a rotating shaft through a gear train.
The improvement of the invention is that: a sun wheel with a hole is formed in the center of the fixed support at the right end (visible in the figure, the fixed support is fixed through a connecting piece 10), and the sun wheel and the rotating shaft are coaxially arranged; the rotating shaft penetrates through the opening in the center of the sun wheel, and then the right end of the rotating shaft is fixed with a rotating disc 5 (actually a planet wheel bracket)), the rotating disc is rotatably positioned with a transmission short shaft 2 and a transmission long shaft 6, and the axis of the transmission short shaft and the axis of the transmission long shaft are parallel to the axis of the rotating shaft. The transmission short shaft is fixedly connected with an elliptic middle wheel 3 and a circular middle wheel 4 meshed with the sun wheel; two ends of the transmission long shaft are respectively suspended on two end faces of the rotating disc, one end of the transmission long shaft is fixed with an elliptical planet wheel 8 meshed with an elliptical middle wheel, and the other end of the transmission long shaft is fixed with a sucker 13 used for sucking the paper box through a sucker support 7.
The suction cup usually works in a negative pressure mode, so an air guide pipeline communicated with an external air source is required to be arranged on the mechanism; obviously, the air duct is sequentially arranged on the transmission long shaft, the rotating disc and the rotating shaft and is communicated with an external air source through an air pipe connector arranged on the fixed support. The arrangement modes of the air guide pipeline and the air pipe joint are conventional mature technologies and are not described in detail.
Preferably, the pitch curve length of the elliptic intermediate wheel 3 and the elliptic planetary wheel 8 is 1. The transmission ratio of the sun wheel 9 to the circular intermediate wheel 4 is 3. The ratio of the distance from the axis of the sun wheel 9 to the axis of the elliptic planetary wheel 8 to the distance from the axis of the elliptic planetary wheel 8 to the suction cup surface is less than 2.
Preferably, the drive stub shaft and the drive stub shaft are both positioned on the rotating disk by bearings.
The surface of the rotating disk 5 is provided with a stepped hole 15. The bearing 12 is installed in the spiral stepped hole 15. A bearing end cap 14 is mounted on the bearing 12.
Fig. 4 to 6 are schematic diagrams showing the displacement trajectory, the speed and the acceleration of the suction disc surface of the planetary gear train of elliptic-circular gear combination (called elliptic-circular gear in the figures) and the planetary gear train of circular gear combination (called circular gear in the figures) respectively.
As can be seen from fig. 4: the displacement tracks of the two gear trains are symmetrically arranged, and the middle point is the symmetric center of each track; two of the three sharp points are respectively a box taking point and a box placing point, and the position of the third sharp point is abandoned; in the tracks of the two wheel trains, the positions of the box taking point and the box placing point are kept consistent.
As can be seen from fig. 5: the speed tracks of the two gear trains are composed of 3 same graphs, wherein three wave crests respectively correspond to intermediate points in the graph 4; for example: the two vertices (0.25, 1131) and (0.25, 1259.1) in the figure correspond to M in FIG. 4, respectively 1 Point sum M 2 And (4) point. And the highest speed in the elliptic-circular gear combined planetary gear train is obviously greater than that of the circular gear combined planetary gear train.
In fig. 6: two points on the acceleration track of the circular gear combination planetary gear train are (0.08, 1065.5) and (0.25, 355.3) respectively, and the acceleration of the point F and the acceleration of the point M1 of the acceleration track of the circular gear combination planetary gear train in the graph 4 are respectively represented from left to right; three points on the acceleration track of the elliptic-circular gear combination planetary gear train are (0.08, 1259.1), (0.15, 960) and (0.25, 715.5), respectively, and from left to right, the acceleration of point F, the acceleration of point G (maximum acceleration of the track) and the acceleration of point M2 of the acceleration track of the elliptic-circular gear combination planetary gear train in fig. 4 are respectively represented. See Table 1 for details
TABLE 1 speed acceleration comparison
In the table: the circular gear track is the track of the circular gear combined planetary gear train;
the ellipse-circle track is the ellipse-circle gear combined planetary gear train track.
The comparison in the table shows that: the speed change of a track formed by the oval-circular gear combined planetary gear train at a point of a sharp point for sucking and releasing boxes is 14.3% slower than the acceleration of the track of the circular gear combined planetary gear train at the point of the sharp point, the speed of the track middle point of the oval-circular gear combined planetary gear train is 11.3% faster than that of the track of the circular gear, the acceleration is 101.4% faster, and the maximum acceleration of the track of the oval-circular gear combined planetary gear train is 9.9% less than that of the track of the circular gear combined planetary gear train. Therefore, under the condition that the rotating speed and the box suction point are not changed, the acceleration of the box suction point and the acceleration of the box discharge point are reduced, so that the speed of the paper box is reduced in the box suction and pulling process and the box discharge and collision process, and the stability and the reliability of the box suction and discharge can be obviously improved; meanwhile, the highest acceleration is reduced, the corresponding inertia force is also reduced, the stress acting on the high-side contact position is small, and the requirements on the strength and the wear resistance of the mechanism can be reduced.
The motion characteristic analysis proves that the box sucking mechanism with the elliptic-circular gear combined planetary gear train as the transmission mechanism can meet the requirement of box sucking track, and the motion track is more suitable for box taking operation and box placing operation.
The working principle of the invention is as follows: the power mechanism drives the rotating shaft 1 to enable the rotating disc 5 to rotate, the circular intermediate wheel 4 rotates around the sun wheel 9, the elliptical intermediate wheel rotates along with the circular intermediate wheel, and the elliptical planet wheel meshed with the elliptical intermediate wheel also revolves around the center of the rotating shaft 1 when rotating; because the sucking disc is fixed on the transmission major axis the same with oval planet wheel orbit, consequently guaranteeing to inhale under the unchangeable circumstances of box point, can make the face that the sucking disc contacted with the carton form a new orbit, this orbit can reduce get the box point and put the speed and the acceleration of box point, can more steadily effectual with the carton from the steady absorption of box support get off to put on the conveyer belt steadily effectively, and then show the reliability that has improved the mechanism operation.
Claims (6)
1. The utility model provides an oval-round gear combination planetary gear train carton inhales box mechanism, includes rotationally fixes a position on fixing support (11) and the left side by power unit driven rotation axis (1), its characterized in that: a sun wheel (9) which is coaxial with the rotating shaft is fixed at the right end of the fixed support, a rotating disc (5) serving as a planet wheel support is fixed at the right end of the rotating shaft after penetrating through an opening at the center of the sun wheel, and at least one pair of a transmission short shaft (2) and a transmission long shaft (6) which are parallel to the axis of the rotating disc are rotatably positioned on the rotating disc; an elliptic middle wheel (3) and a circular middle wheel (4) meshed with the sun wheel are fixed on the transmission short shaft, an elliptic planet wheel (8) meshed with the elliptic middle wheel is fixed at one end of the transmission long shaft, and a sucker (13) used for sucking the paper box is fixed at the other end of the transmission long shaft through a sucker support (7).
2. The oval-circular gear combined planetary gear train paper box suction mechanism as claimed in claim 1, wherein: the sucker is communicated with an external air source through air guide pipelines sequentially arranged on the transmission long shaft, the rotary disc and the rotary shaft and an air pipe joint arranged on the fixed support.
3. The oval-circular gear combined planetary gear train paper box suction mechanism as claimed in claim 1, wherein: the length of the curve of the elliptic intermediate wheel and the elliptic planetary wheel section is 1.
4. The oval-circular gear combination planetary gear train paper box suction mechanism as claimed in claim 1, wherein: the transmission ratio of the sun wheel to the circular intermediate wheel is 3.
5. The oval-circular gear combination planetary gear train paper box suction mechanism as claimed in claim 1, wherein: the ratio of the distance from the center of the sun wheel to the axis of the elliptical planet wheel to the distance from the axis of the elliptical planet wheel to the surface of the sucking disc is less than 2.
6. The oval-circular gear combination planetary gear train paper box suction mechanism as claimed in claim 1, wherein: the transmission short shaft and the transmission long shaft are both rotatably positioned on the rotating disc through bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710228732.XA CN106864845B (en) | 2017-04-10 | 2017-04-10 | Box suction mechanism for paper box of oval-circular gear combined planetary gear train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710228732.XA CN106864845B (en) | 2017-04-10 | 2017-04-10 | Box suction mechanism for paper box of oval-circular gear combined planetary gear train |
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| Publication Number | Publication Date |
|---|---|
| CN106864845A CN106864845A (en) | 2017-06-20 |
| CN106864845B true CN106864845B (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710228732.XA Active CN106864845B (en) | 2017-04-10 | 2017-04-10 | Box suction mechanism for paper box of oval-circular gear combined planetary gear train |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108100387B (en) * | 2017-12-12 | 2019-09-27 | 上海应用技术大学 | A kind of box erecting machine and its working method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006111309A1 (en) * | 2005-04-19 | 2006-10-26 | Iwk Verpackungstechnik Gmbh | Transfer device placed in a packing machine |
| CN205441017U (en) * | 2016-03-17 | 2016-08-10 | 温州高格机械科技有限公司 | Cartoning machine suction box mechanism |
| CN205652452U (en) * | 2016-05-06 | 2016-10-19 | 广州长林智能科技服务有限公司 | Box carousel is driven to planet non -circular gear cartoning machine |
| CN206013122U (en) * | 2016-11-12 | 2017-03-15 | 唐琳 | Box device opened by a kind of box that takes of cosmetics automatic box packing machine |
| CN206665049U (en) * | 2017-04-10 | 2017-11-24 | 浙江理工大学 | A kind of oval Knucle-gear combined planetary train carton inhales case structure |
-
2017
- 2017-04-10 CN CN201710228732.XA patent/CN106864845B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006111309A1 (en) * | 2005-04-19 | 2006-10-26 | Iwk Verpackungstechnik Gmbh | Transfer device placed in a packing machine |
| CN205441017U (en) * | 2016-03-17 | 2016-08-10 | 温州高格机械科技有限公司 | Cartoning machine suction box mechanism |
| CN205652452U (en) * | 2016-05-06 | 2016-10-19 | 广州长林智能科技服务有限公司 | Box carousel is driven to planet non -circular gear cartoning machine |
| CN206013122U (en) * | 2016-11-12 | 2017-03-15 | 唐琳 | Box device opened by a kind of box that takes of cosmetics automatic box packing machine |
| CN206665049U (en) * | 2017-04-10 | 2017-11-24 | 浙江理工大学 | A kind of oval Knucle-gear combined planetary train carton inhales case structure |
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| CN106864845A (en) | 2017-06-20 |
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