全自動真空包裝機設(shè)計-總體結(jié)構(gòu)和傳遞系統(tǒng)含5張CAD圖
全自動真空包裝機設(shè)計-總體結(jié)構(gòu)和傳遞系統(tǒng)含5張CAD圖,全自動,真空,裝機,設(shè)計,總體,整體,結(jié)構(gòu),以及,傳遞,系統(tǒng),cad
Analysis of the simulation movement in Cigarette packaging
machine pusher Device
Jujiang Cao1, a, Xiaohong Tian2, b and Long Li3, c
1,2,3
of Science & Technology Xi’an, Shaanxi Province, China
a
jjcao@sust.edu.cn, btianxiaohong@sust.edu.cn, cllabc125@163.com
Keywords: Cigarette pusher device, movement curve, acceleration, Pro／E
Abstract.
Researches and analyzes an advanced cigarettes in this paper, with the
help of 3d modeling software pro/E image intuitively emulation produce its motion
curves, and obtain the displacement, velocity and acceleration curve, Using the
mechanism motion and kinematics analysis diagram, the mechanism kinematical
process is analyzed which is laid a certain foundation for the further improved
cigarette pusher device.
Introduction
Pusher device is an important component in cigarette packaging machine. It has two
aspects function: one is to fold the shorter edges of aluminum foil bag top; Another is
to push the foil tobacco package box paper together with wrapped round to trademark.
Taking a cigarette packaging machine for example (as shown in figure 1) in this paper.
The pusher is cam-link institutions and slider-crank composed of five-bar mechanism,
cam-link mechanism to push folding aluminum foil on the short side up and down
movement; Slider-crank mechanism to push aluminum foil tobacco package
reciprocating movement before. After completing two top fold Angle and cigarette
shorter edges; While keeping the aluminum foil tobacco package from a continuous
movement and avoid collect conveying guide, continuous movement pushed smoke
lugs[1]. Aluminum foil tobacco package under two top fold Angle and shorter edges
folding is in motion, namely complete with reciprocating mode box back together in a
fold reciprocating movement is under the action of fixed CAM swung repeatedly[2],
then completes the folding action. Slider-crank mechanism of reciprocating mode box
control the reciprocating back and forth motion.
Figure 1. The three-dimensional graph
1-cam 2-link 3-link 4- three components 5-link
6-link 7-crack 8-link 9-crank 10-pusher
Figure 2, the diagram for the structure of the pusher
Department of Mechanical and Electrical Engineering Shaanxi University
Institution structure and working principle
Aluminum foil pushing smoke pusher device belongs to the CAM five-link
mechanism. It is a kind of institution which can achieve precise trajectory. Cam-link
get the CAM and linkage mechanism of their respective advantages together, also can
eliminate or reduce their some bad performance. This device can without error ground
emersion given trajectory on the structure and function, and they can also finish the
scope of more than general four-bar mechanism. This paper studies the combination
mechanism with CAM mechanism and linkage mechanism with the implementation
of the trajectory in figure 1 pusher device.
As figure2 shows, component 1 is the original dynamic parts, the movement rule
given by CAM; Component 2, 3, 4 form a four-bar mechanism, component part 5, 6,
8, 9, form a five-bar mechanism which series with four-bar. The power also comes
from the role of CAM- 2. Meanwhile slider-crank mechanism consolidate with the
CAM which power is also from its output, the CAM mechanism in parallel with
five-bar mechanism, together controlling the trajectory of pusher in F. Figure2 is the
diagram for aluminum foil push the structure of smoking institutions pusher. the rod 2
and rod 3, rod 3 and 4, pole 6 and pole 7, lever 1 and testing five are through "pin"
connection with the stem 4, component 5 as a whole part on the frame which can also
promote the rotary motion of the pole 4 and rod 6. the points of F is the output of
institutions.
Institutions movement analysis
In Pro/E the trajectory will change by adjustment of the length of five rods and the
connecting rod, the Angle between the institutions. In order to make the geological
hazards in returning in design requirements, we first determine when the institutions
in various rods, and the center distance between the contact point in CAM roller CAM
and CAM, ensure in contact for surface contact.
Eventually get the crucible of track as shown in figure 1 shows. In Pro/E, CAM speed
can be a constant value, also can be: slope, cosine, SCCA, cycloid, parabolic,
polynomial, tables, user-defined[3]. By defining the CAM movement can get different
motion characteristics, this paper take every minute 800 packet transmission motor
(speed 400rad/min) as an example. Measurement helps understand and analyze the
effects of the mobile mechanism, and improves the information mechanism design.
Pro/E provides analysis types are: location analysis, kinematics analysis, dynamic
analysis, static analysis and force equilibrium analysis. Each kind of analysis
corresponding measuring type, such as the measured kinematical analysis types:
position,
velocity,
acceleration,
connecting
counterproductive,
net
load,
counterproductive, momentum, impulse, system, subject, separation, CAM and
user-defined.
Render the trajectory of the movement of F. The menu bar in turn click "insert"
to a "trajectory curve" the order, pop-up "trajectory curve" dialog box. Select the
corresponding parameter will get the curve of figure 1.
Set the institutions, the related parameters of kinematics analysis. As the
example of graph 2 actuating limbs of institutions in this paper, its related parameters
are: rod 2 length for the length is 140mm, rod 3 for the length is 450mm, rod for five
is 184mm, stem length of 6 is 90mm, rod for the 8 is 150mm, rod for 10 is 95mm. the
Angle between Component 2 is 189.75 degrees, rods are "pin connected", on the
analysis of kinematics analysis, and obtain the analysis of displacement, the
movement velocity and acceleration in F.
Measurement the position 、velocity and Angle on the position of F point.
The menu bar in turn click "analysis" - "institutional analysis", motor, set parameters
for the constant, A (degrees/SEC) = 400 (turn)X360( degrees) / 60 = 2400, then click
operation after completion, allow commands, click the "measurement" pop-up
"measuring results" dialog box. The amount of set respectively, to measure set
position, velocity, acceleration, the measured results after finishing, rendering
graphics such as shown below measurement. The following draws the displacements -
every minute time chart, speed - time chart, acceleration - time per minute map and in
600 bales, 800 bag, 1000 packet.
1-300r/min of displacement-time in F
2-400r/min of displacement-time in F
3-500r/min of displacement-time in F
Figure 3 the displacement-time in F
1-500r/min of velocity-time in F
2-400r/min of velocity -time in F
3-300r/min of velocity-time in F
Figure 4 the velocity - time in F
1-500r/min of acceleration -time in F 2-400r/min of acceleration -time in F
3-300r/min of acceleration -time in F
Figure 5 the acceleration – time in F
Chart 1 is the maximum and minimum in figure 3、4、5.（F point is as shown in figure 2）
Figure 3, 4, 5 May intuitive reflected in every minute transmit 600 bag, 800 bag, 1000
bag, its velocity, acceleration curve, figure 5 is showed when acceleration is 0, its
velocity maximum -3400mm/s. With the increased speed, acceleration is obvious
mutations, fig. 5 show every minute transmit 600 bales, 800 bags and 1000 packet
Placement in F
point（800 bag）
mm
Velocity in F
point（800 bag）
mm/s
Acceleration in
F point
2
(800bag）mm/s
acceleration in F
point （600 包）
2
mm/s
acceleration in F
point（1000 包）
2
mm/s
maximum
150
4100
223000
100000
350000
minimum
-18
-3500
-150000
-90000
-250000
period（s）
0.15
0.15
0.15
0.2
0.12
acceleration - time chart. In 0.12 velocity The advantages and disadvantages of the
institution. when cigarettes at a lower speed, with the different speed requirements for
the cigarette, by changing the speed of the CAM to meet the requirement. The agency
has strong production flexibility to different cigarettes case product. Technology is
more advanced and design method is clever, fully combine the double bag packaging
and straight bag packaging technology advantages. At the same time, the reasonable
layout design making the institutions compact structure, smaller space occupied by
and high production efficiency. By the precise size of the mechanism analysis and
design, especially for the detailed design of the profile of CAM, which can meet the
needs of high kinematic accuracy of the mechanism and kinetics characteristics[4].
Weakness is when speed is higher (1000 package/points), the acceleration is larger
which cause mutations in the inertial the bigger forces and it has certain influence to
the whole organization.
Conclusion
Not only make the mechanism visual and visualization, also make the whole
simulation process is more accurate, image, vivid. By crucible analysis of the
advanced institution and using 3d software Pro/E. Pro/E can obtain the simulation
analysis of the modeling institutions of kinematics analysis at any position. The
arbitrary position dynamics analysis can obtain When confirm the quality of the
organization institutions. Through analysis the agency and the institution, founding
that there is improvement and ascension space in this institution, and the agency is
also not only for the realize cigarette packaging machine. Through analysis the
crucible institutions find that its can improve space, improving direction can has two
kinds: one is to improve the speed, achieve namely 1000 package/points; Another is
to improve the operation efficiency and stability of the machine. For this push
institutions from analysis can also get some inspired, so as to promote the
development of packaging machine techniques.
References:
[1] GongMeiHua,HuangDeLiang,Xufeng. Analysis of FC800 in FOCKE packaging
machine[m]. conference of China tobacco institute proceedings in 2010 (2010.3)
[2] SongMeili,WangHuaKun,YinLei. Designed and motion simulation in packing the
innovation of mechanical pusher book institutions [J], packaging and food machine
2008,4 (26)
[3] WangShengTao,ChenZaiLiang. Based on the gear Pro/E motion simulation
five-bar [J] of suzhou university journals 2010,6,53-55
[4] HuangDeLiang, RenZiWen,ShiZhiFang. Realize speed requirements trajectory
cam-link combination mechanism design [J] mechanical design and research, 2007, 4
(23) : 32-34.
收藏