CN103372890A - Variable transmission paper feed mechanism for die-cutting machine - Google Patents
Variable transmission paper feed mechanism for die-cutting machine Download PDFInfo
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- CN103372890A CN103372890A CN2012101334015A CN201210133401A CN103372890A CN 103372890 A CN103372890 A CN 103372890A CN 2012101334015 A CN2012101334015 A CN 2012101334015A CN 201210133401 A CN201210133401 A CN 201210133401A CN 103372890 A CN103372890 A CN 103372890A
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Abstract
The invention relates to a variable transmission paper feed mechanism for a die-cutting machine. The paper feed mechanism comprises a cam-planetary gear epicyclic train component, a speed-increasing gearbox, a synchronous belt, a paper feeding roller and a paper feeding belt roller, wherein the cam-planetary gear epicyclic train component is connected with the speed-increasing gearbox, and the speed-increasing gearbox is connected with the paper feeding roller and the paper feeding belt roller through the synchronous belt. Compared with the prior art, the paper feed mechanism is stable and reliable in movement and high in paper feeding accuracy, large-stroke high-speed smooth paper feeding can be realized, manufacturing cost can be controlled, and later maintenance and service costs are low.
Description
Technical field
The present invention relates to a kind of die-cutting machine gear paper feed mechanism, more particularly, to a die-cutting machine gear paper feed mechanism using cam-planetary gear cyclic train.
Background technology
At present, the paper feed mechanism that die-cutting machine is used has two major classes:Traditional mechanical speed change transmission paper feed mechanism and SERVO CONTROL speed changeable sheet-fed mechanism.Traditional machine driving paper feed mechanism includes:Eccentric pendulum turns round gear paper feed mechanism, rotating guide-bar gear paper feed mechanism, eccentric shaft gear gear paper feed mechanism, four bar hinges-cyclic train gear paper feed mechanism and elliptic gear gear paper feed mechanism, although above-mentioned tradition machinery gear paper feed mechanism can all realize the gear paper feeding of paper feeding, but the characteristics of motion of the reason for being limited to mechanism paper feeding process is uncontrollable, the high speed paper feeding of particularly big stroke, there is very high requirement to the characteristics of motion of paper feeding process, it just can guarantee that the stabilization and precision of high speed paper feeding, traditional mechanical speed change transmission paper feed mechanism can not realize the paper carrying process of the high speed controlled motion rule of big stroke, institute is to generate SERVO CONTROL speed changeable sheet-fed mechanism, ideal paper feeding time-speed the curve movement of servomotor one is set by servomotor controller, realize the paper carrying process of the controlled motion rule of the high-speed smooth of big stroke, but SERVO CONTROL speed changeable sheet-fed mechanism compares mechanical transmission mechanism, servo-drive system cost is high, there need to be professional's debugging, the maintenance in later stage and use cost are also very high.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of die-cutting machine gear paper feed mechanism of use cam-planetary gear cyclic train.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of die-cutting machine gear paper feed mechanism, including cam-planetary gear cyclic train component, step-up gear, synchronous belt, feeding-in roll and paper feeding leather belt roller, described cam-planetary gear cyclic train component connection step-up gear, the step-up gear connects feeding-in roll and paper feeding leather belt roller by synchronous belt.
Described cam-planetary gear cyclic train component includes centre wheel, planetary gear, grooved cam, roller and epicyclic wheel pendulum, described epicyclic wheel pendulum driving planetary gear, described roller is eccentrically set on planetary gear, and stretch into the curved groove of grooved cam, described centre wheel is engaged with planetary gear, and connects step-up gear by power transmission shaft.
Compared with prior art, the present invention has advantages below:
First, stable movement of the invention is reliable, paper feeding precision is high, and the high-speed smooth paper feeding of big stroke can be achieved:Paper feed mechanism is driven compared to traditional mechanical speed change, because using cam-planetary gear cyclic train, its curve movement can be set to ideal paper feeding time-speed characteristics of motion, so that acceleration is smaller, also can reducing mechanism impact, preferable movement velocity and acceleration can be obtained in big stroke paper feeding so that positioning side deformation when paper reaches front lay is minimum, preferable mould-cutting precision is reached, so that the cross cutting speed of complete machine is also significantly improved.
2nd, manufacturing cost is controllable, later period maintenance and use cost are low:Compared to SERVO CONTROL speed changeable sheet-fed mechanism, because of the servomotor and driver using high pulling torque, so the manufacturing cost of manufacture SERVO CONTROL speed changeable sheet-fed mechanism remains high, and the maintenance in later stage and use cost are also very high, and the gear paper feed mechanism manufacturing cost of mechanical structure is relatively low, later period maintenance and use cost are relatively low.
Brief description of the drawings
Fig. 1 is structural representation of the invention;
Fig. 2 is the explosive view of cam of the present invention-planetary gear cyclic train component and step-up gear;
Fig. 3 is the schematic diagram of cam of the present invention-planetary gear cyclic train component movement rule.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As depicted in figs. 1 and 2, a kind of die-cutting machine gear paper feed mechanism, including step-up gear B, synchronous belt C, feeding-in roll D, paper feeding leather belt roller E and the cam-planetary gear cyclic train component A being made up of centre wheel 1, planetary gear 2, grooved cam 3, roller 4 and epicyclic wheel pendulum 5.Epicyclic wheel pendulum 5 connects actuating unit, and drive planetary gear 2, to whole gear paper feed mechanism input power, roller 4 is eccentrically set on planetary gear 2, and is stretched into the curved groove of grooved cam 3, centre wheel 1 is engaged with planetary gear 2, step-up gear B is connected by power transmission shaft, power is exported to step-up gear B, then paper feeding stroke is matched by step-up gear B and synchronous belt C adjustment, feeding-in roll D and paper feeding leather belt roller E are finally transferred to, speed change paper carrying is realized.Because the curve movement of grooved cam can be set to ideal paper feeding time-speed characteristics of motion, so that acceleration is smaller, also can reducing mechanism impact, preferable movement velocity and acceleration can be obtained in big stroke paper feeding, so that positioning side when paper reaches front lay deforms minimum, preferable mould-cutting precision is reached, so that the cross cutting speed of complete machine is also significantly improved.
Its concrete principle is as shown in Figure 3, it is assumed that the characteristics of motion of centre wheel is Ψ1、Ψ1′(θ)、Ψ1" (θ), then the characteristics of motion of planetary gear is Ψ2=Z1/Z2x (Ψ1-θ);Ψ2' (θ)=Z1/Z2x Ψ 1 ' (θ);Ψ2" (θ)=Z1/Z2x Ψ1" (θ), wherein Z1/Z2 are the gearratio of gear.
The roller 4 and center O2 of planetary gear 2 distance is l, then the characteristics of motion for converting epicyclic wheel pendulum is:Ψl=Ψ2-Ψ2min;Ψl' (θ)=Ψ2’(θ)-Ψ2’(θ)Ψ2min;Ψl" (θ)=Ψ2" (θ), then the theoretical profile of grooved cam be:
Xc=Lsin θ-lsin (Ψl+Ψo+θ);
Yc=Lcos θ-lcos (Ψl+Ψo+θ);
Wherein, L is the centre-to-centre spacing of planetary gear and centre wheel, and Ψ o are L and l angle, can be obtained according to the cosine lawRb is the minimum revolution-radius of roller.
Then radius of curvature is:
ρ c=[L2+l2(Ψl’(θ)+1)2-2lL(Ψl’(θ)+1)cos(Ψl+Ψo)]3/2/[L2+l2(Ψl’(θ)+1)3-lL(Ψl”(θ)sin(Ψl+Ψo))-lL(Ψl’(θ)+2)(Ψl’(θ)+1)cos(Ψl+Ψo)]
Pressure angle is:
α=arctan [(l (1+ Ψl’(θ))/(Lsin(Ψl+Ψo))-cot(Ψl+Ψo)]
Therefore, the working profile limited of grooved cam as:
Wherein, Δ=[L2+l2(Ψl’(θ)+1)2-2lL(Ψl’(θ)+1)cos(Ψl+Ψo)]1/2
The radius of the working profile limited of grooved cam as:
(positive sign during external envelope, negative sign during interior envelope;Type θ in the same direction is substituted into negative value, and type Ψ l` (θ) v in the same direction is substituted into negative value, and backhaul Ψ l etc. are also substituted into negative value).
Claims (2)
1. a kind of die-cutting machine gear paper feed mechanism, it is characterized in that, including cam-planetary gear cyclic train component, step-up gear, synchronous belt, feeding-in roll and paper feeding leather belt roller, described cam-planetary gear cyclic train component connection step-up gear, the step-up gear connects feeding-in roll and paper feeding leather belt roller by synchronous belt.
2. a kind of die-cutting machine gear paper feed mechanism according to claim 1, it is characterized in that, described cam-planetary gear cyclic train component includes centre wheel, planetary gear, grooved cam, roller and epicyclic wheel pendulum, described epicyclic wheel pendulum driving planetary gear, described roller is eccentrically set on planetary gear, and stretch into the curved groove of grooved cam, described centre wheel is engaged with planetary gear, and connects step-up gear by rotating shaft.
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CN2012101334015A CN103372890A (en) | 2012-04-28 | 2012-04-28 | Variable transmission paper feed mechanism for die-cutting machine |
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CN2012101334015A CN103372890A (en) | 2012-04-28 | 2012-04-28 | Variable transmission paper feed mechanism for die-cutting machine |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107892192A (en) * | 2017-12-13 | 2018-04-10 | 劲亚(上海)机械有限公司 | A kind of die-cutting machine speed changing conveying mechanism |
CN113415665A (en) * | 2021-06-03 | 2021-09-21 | 金东纸业(江苏)股份有限公司 | Paper cutting mechanism paper device |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107892192A (en) * | 2017-12-13 | 2018-04-10 | 劲亚(上海)机械有限公司 | A kind of die-cutting machine speed changing conveying mechanism |
CN113415665A (en) * | 2021-06-03 | 2021-09-21 | 金东纸业(江苏)股份有限公司 | Paper cutting mechanism paper device |
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Application publication date: 20131030 |