A kind of material film exfoliating device
Technical field
The utility model relates to a kind of stripping off device, particularly a kind of material film exfoliating device for small table formula surface mount system (SMS).
Background technology
Surface mount system (SMS) is a kind of system that surface mount elements mounts automatically that realizes, and in the production line of various electronic products, is widely used.And surface mount elements generally all pass through material film by component encapsulation in the hopper of material strip, so in process of production, surface mount system all needs first material film to be peeled off from material strip, then from hopper, gets element and mount.
Number of patent application is the material film separating structure that 201010122807.4 utility application discloses a kind of feeder of surface mounting equipment, outputting power by feeding motor is in transmission connection with drive successively after tooth sector group, belt transmission, and the power on drive makes to expect that film is separated with material strip effectively.But, the disclosed material film separating structure of this utility application, volume is large, and cost is high, is unsuitable for being applied in small table formula and mounts system.
Number of patent application is the nylon automatic stripper that 201320039890.8 utility model patent discloses a Seed packaged band, by some rolling wheels are set on power transmission shaft, realize with one, drive many, a motor drives a plurality of rolling wheels, each rolling wheel provides pulling force to nylon material film separately, so only with a motor, realize peeling off of a plurality of material strip material loading films, saved cost and volume, be applicable to the chip mounter of small table formula.But, with same motor, drive a plurality of rolling wheels, can not realize the independent control to each stripping rolling wheel, torque adjusting can not be controlled very easily, and this device is that frictional force by rubber provides moment, and average life is the poor shortcoming of high stability not.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of material film exfoliating device, and volume is little, and cost is low, controls accurately, is applicable to small table formula surface mount system (SMS).
For solving the problems of the technologies described above, the utility model provides a kind of material film exfoliating device, comprise fixed mount, installation shaft and voice coil motor, and make the mechanism for stripping of expecting that film is separated with material strip, described mechanism for stripping comprises the wheel of peeling off of one-directional rotation, described voice coil motor is oscillating-type voice coil motor, the tilting member of described voice coil motor and peel off wheel and take installation shaft and be arranged on fixed mount as axle.
In the utility model, because in chip mounter, the width of material strip is narrow, so the shape of each film-removing device just must be designed to the width coupling of narrow type and material strip, also the power source motor that has just determined film-removing device can not be excessive, film-removing device produces again enough power and could realize stripping simultaneously, so just adopt the gear train of complex precise to carry out the deficiency that transmission makes up motor torque in prior art, and the utility model, oscillating-type voice coil motor can provide larger moment under limited width spaces, thereby simplify complexity and the precision of gear train, greatly reduce cost and simplified mechanical structure, further, within a hunting period, oscillating-type voice coil motor only effectively drives and peels off wheel one-directional rotation in half period, peeling off wheel is circular gap work, in each hunting period, material film is drawn out a unit length, further simplified the control of mechanism for stripping, the more effective mechanism for stripping cost that reduced.Meanwhile, by changing current of electric, can to stripping moment, accurately control online.
Above-mentioned material film exfoliating device, wherein, described voice coil motor comprises provides the stator in magnetic field and with respect to the mover of stator movement, described mover is comprised of coil brace and coil, and described coil brace one end and installation shaft close-fitting are installed, and the other end is free end, described coil is arranged on coil brace, described stator is arranged on fixed mount, the coupling of the magnetic field producing during described coil electricity and stator field, and described coil brace and stator are flat.
Coil brace and the stator of above-mentioned winding around are flat, effectively utilized the feature of voice coil motor to realize the special requirement of the utility model, coil brace and the effective output that has realized voice coil motor power coordinating of installation shaft, thus further implementation structure simplifies.
Above-mentioned material film exfoliating device, wherein, described stator is positioned at the one or both sides of coil, the magnetic line of force in the swing meeting cutting stator magnetic field of described coil.
Can stator be set in a side or the both sides of coil, better the swing for coil brace provides power.
Above-mentioned material film exfoliating device, wherein, described stator is parallel with coil.
When stator is parallel with coil, can realize best magnetic force line cutting effect, produce maximum oscillatory forces, thereby larger moment can be further provided, moment is larger, and follow-up gear train is just more simplified, and volume is just less, and cost is also just lower.
Above-mentioned material film exfoliating device, wherein, is connected power assistant spring between the tilting member of described voice coil motor and fixed mount, and described fixed mount inner side is provided with at least one block buffering piece near coil brace place.
The use of spring, effectively power-assisted swings return, and buffer stopper can limit the interval that coil brace swings accurately, can avoid again coil brace to swing the impact to shell simultaneously.
Above-mentioned material film exfoliating device, wherein, described in, peel off wheel for stripping ratchet, described stripping ratchet and the installation of installation shaft close-fitting, and described mechanism for stripping also comprises and the hard-wired rolling wheel of stripping coaxial ratchet, the frictional force between described rolling wheel and material film is greater than the viscous force between material film and material strip.
The use of ratchet can realize the one-directional rotation of peeling off wheel, peels off wheel and give up the throne when preventing from swinging return, meanwhile, can effectively drive material film to peel off with the rolling wheel of peeling off wheel interlock.
Above-mentioned material film exfoliating device, wherein, described in peel off wheel for stripping gear or stripping running roller, and described mechanism for stripping also comprises the first unilateral bearing; The tilting member of described voice coil motor drives the first unilateral bearing, installation shaft, stripping gear or stripping running roller successively; Or the tilting member of voice coil motor drives installation shaft, the first unilateral bearing, stripping gear or stripping running roller successively, the frictional force between described stripping gear or stripping running roller and material film is greater than the viscous force between material film and material strip.
Such scheme of the present utility model has realized with a unilateral bearing one-directional rotation of peeling off wheel, peels off wheel simultaneously and is arranged to stripping gear or stripping running roller is realized stripping, in general, carries out after surface treatment on stripping running roller, more easily realizes the effect of peeling off.
Above-mentioned material film exfoliating device, wherein, described rolling wheel, stripping gear or stripping running roller top are provided with clamp system, described clamp system comprise clamp shaft and with the driven pinch wheels coordinating of rolling wheel, stripping gear or stripping running roller, described pinch wheels be take clamp shaft as rotating shaft.
Such scheme of the present utility model has been realized the one-directional rotation of peeling off wheel with pinch wheels and clamp shaft, disclose the mode that another is realized one-directional rotation, can certainly adopt other device of realizing unidirectional active, for example card article.
Above-mentioned material film exfoliating device, wherein, described pinch wheels is for clamping ratchet; Or described pinch wheels is for clamping gear or clamping running roller, and described clamp system also comprises the second unilateral bearing, described clamping gear or clamping running roller and the second unilateral bearing, the installation of clamp shaft close-fitting.
Scheme, especially pinch wheels that further clear and definite pinch wheels realizes one-directional rotation also adopt unilateral bearing, cooperatively interact with peeling off wheel and unilateral bearing thereof, can realize and well peel off effect and effectively prevent from giving up the throne.
Above-mentioned material film exfoliating device, wherein, described clamp shaft is connected with fixed mount by torsion spring.Described clamp system also comprises clamp arm, and described clamp arm one end is connected with clamp shaft, and the other end is connected with fixed mount by torsion spring, and described clamp arm also connects clamp.
The effect of torsion spring is mainly to coordinate pinch wheels and clamp shaft to realize the effect that compresses material film, and material film when mounted, can lift clamp arm, make to peel off wheel separated with pinch wheels after press-in material film, and then the action that drives the common realization of pinch wheels to draw material by the rotation of peeling off wheel.
The utility model compared with the existing technology has the following advantages and effect: owing to adopting oscillating-type voice coil motor to drive the wheel of peeling off in mechanism for stripping, can guarantee provides enough material films to peel off moment, reduced cost for the wheel of peeling off in mechanism for stripping, and the flat structure characteristic of oscillating-type voice coil motor reduces the volume of stripping off device, be more suitable for small table formula and mount system.In addition, within a hunting period, oscillating-type voice coil motor only effectively drives and peels off wheel one-directional rotation in half period, peeling off wheel is circular gap work, in each hunting period, material film is drawn out a unit length, simplify the control of mechanism for stripping, reduced mechanism for stripping cost and volume.Meanwhile, by changing current of electric, can to stripping moment, accurately control online.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the first embodiment of a kind of material film exfoliating device of the utility model.
Fig. 2 is the structural representation of the second embodiment of a kind of material film exfoliating device of the utility model.
Fig. 3 is the structural representation of the 3rd embodiment of a kind of material film exfoliating device of the utility model.
Fig. 4 is the structural representation of clamp system in Fig. 3.
Fig. 5 is practical application figure embodiment illustrated in fig. 3.
Label declaration:
1, fixed mount, 2, installation shaft, 3, coil brace, 4, coil, 5, stator, 6, peel off gear, 7, the first unilateral bearing, 8, power assistant spring, 9, buffer stopper, 10, material film, 11, peel off ratchet, 12, rolling wheel, 13, clamp shaft, 14, clamp gear, the 15, second bearing, 16, clamp arm, 17, torsion spring, 18, clamp.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Embodiment 1
Fig. 1 is the first embodiment of the present utility model, as shown in Figure 1, the material film exfoliating device that the utility model provides, comprise fixed mount 1, installation shaft 2 and oscillating-type voice coil motor, and make the mechanism for stripping of expecting that film 10 is separated with material strip (not shown in figure 1), this mechanism for stripping peel off wheel for peeling off gear 6.Voice coil motor comprises provides the stator in magnetic field 5(to be generally permanent magnet) and with respect to the mover of stator 5 motion, mover is comprised of coil brace 3 and coil 4, and coil brace 3 tilting member that is this voice coil motor; Coil brace 3 one end and installation shaft 2 close-fittings are installed, and the other end is free end; Coil 4 is arranged on coil brace 3, and stator 5 is arranged on fixed mount 1, the magnetic field and stator 5 magnetic Field Couplings that during coil 4 energising, produce; Peel off gear 6 and be arranged in installation shaft 2 by the first unilateral bearing 7, installation shaft 2 is arranged on fixed mount 1.So, the tilting member of coil brace 3(voice coil motor) and peel off gear 6 and all take installation shaft 2 and be arranged on fixed mount 1 as axle, the swing that is coil brace 3 drives installation shaft 2, the first unilateral bearing 7, stripping gear 6 successively, and stripping gear 6 one-directional rotation under the effect of the first unilateral bearing 7 makes to expect that film 10 peels off from material strip.During practical application, manually first material film 10 is torn to one section, and material film 10 is being peeled off to winding on gear 6, while peeling off like this gear 6 one-directional rotation, with regard to pulling force of energy feed film, make to expect that film 10 is separated with material strip.Owing to adopting oscillating-type voice coil motor to drive the wheel of peeling off in mechanism for stripping, can guarantee provides enough material films to peel off moment, reduced cost for the wheel of peeling off in mechanism for stripping, and the flat structure characteristic of oscillating-type voice coil motor reduces the volume of stripping off device, be more suitable for small table formula and mount system.In addition, within a hunting period, oscillating-type voice coil motor only effectively drives and peels off wheel one-directional rotation in half period, peeling off wheel is circular gap work, in each hunting period, material film is drawn out a unit length, simplify the control of mechanism for stripping, reduced mechanism for stripping cost and volume.
In the first embodiment shown in Fig. 1, coil brace 3 one end can also be arranged in installation shaft 2 by the first unilateral bearing 7, stripping gear 6 is directly installed in installation shaft 2, the swing that is coil brace 3 drives the first unilateral bearing 7, installation shaft 2, stripping gear 6 successively, and stripping gear 6 one-directional rotation under the effect of the first unilateral bearing 7 makes to expect that film 10 peels off from material strip.In addition, stripping gear 6 also available stripping running roller (not shown in figure 1) substitutes, and can realize and peeling off equally.
Wherein, coil brace 4 and stator 5 are flat, and stator 5 is positioned at the one or both sides of coil 4, the magnetic line of force in swing meeting cutting stator 5 magnetic fields of coil 4, and when stator 5 is parallel with coil 4, the power that during energising, coil 4 is subject to is maximum.
Wherein, between the tilting member of described voice coil motor and fixed mount 1, be connected a power assistant spring 8, in tilting member does not drive the half period of stripping wheel rotation, the moment loading of tilting member is to power assistant spring 8, in tilting member drives the half period of stripping wheel rotation, the moment loading of power assistant spring 8, to tilting member, has increased the moment that tilting member drives stripping wheel to rotate, can reduce to a certain extent the output torque of voice coil motor, further reduce to expect the volume of film exfoliating device.At least one block buffering piece 9 is located to be provided with near string pendulum dynamic component (coil support 3) in fixed mount 1 inner side, and preferably a block buffering piece 9 is respectively established in both sides, and buffer stopper 9 can reduce tilting member and clash into fixed mount 1 in swing process, reduces wearing and tearing.
Wherein, on stripping gear 6 or stripping running roller, be also provided with friction striped, increase stripping gear 6 or the stripping running roller frictional force intermembranous with material, make the intermembranous frictional force of stripping gear 6 or stripping running roller and material when the viscous force being greater than between material film 10 and material strip, both avoided expecting that film slided, also can reduce to a certain extent the output torque of voice coil motor, further reduce to expect the volume of film exfoliating device.
Embodiment 2
Fig. 2 is the second embodiment of the present utility model, as shown in Figure 2, the second embodiment is substantially identical with the structure of the first embodiment, difference is: in the second embodiment, peel off wheel for one-directional rotation and be fixedly connected with rolling wheel 12 peel off ratchet 11, owing to peeling off ratchet 11 one-directional rotation, thereby drive rolling wheel 12 one-directional rotation, coil brace 3(tilting member) drive successively installation shaft 2, peel off ratchet 11, rolling wheel 12(omitted the first unilateral bearing 7 in the first embodiment), material film 10 is wrapped on rolling wheel 1, by rolling wheel 1, makes to expect that film 10 is separated with material strip.Rolling wheel 12 can be selected gear or running roller etc., similar with the first embodiment, friction striped is also set on rolling wheel 12, increasing friction force.
Embodiment 3
Fig. 3 is the 3rd embodiment of the present utility model, as shown in Figure 3, the 3rd embodiment is substantially identical with the structure of the first embodiment, difference is: stripping gear 6 tops are also provided with clamp system, clamp system comprise clamp shaft 13 and with the driven pinch wheels coordinating of stripping gear 6, the pinch wheels of this clamp system, for clamping gear 14, clamps gear 14 and take clamp shaft 13 as rotating shaft, clamps gear 14 and the second unilateral bearing 15, clamp shaft 13 close-fittings installations.By clamping coordinating of gear 14 and stripping gear 6, clamp material film 10, while avoiding peeling off, expect film 10 slips.Similar with the first embodiment, stripping gear 6 can be replaced by stripping running roller, clamps gear 14 and also can replace by clamping running roller.
Similar with the second embodiment, stripping gear 6 also can be replaced by one-directional rotation and the ratchet of peeling off that is fixedly connected with rolling wheel, and rolling wheel top arranges clamp system, now can omit the first unilateral bearing; Clamp gear 14 and also can be replaced by the clamping ratchet (not shown in Fig. 3) of one-directional rotation, now can omit the second unilateral bearing 15.
As shown in Figure 4, clamp system also comprises clamp arm 16, and clamp arm 16 one end are connected with clamp shaft 13, and the other end is connected with fixed mount 2 by torsion spring 17, clamp arm 16 is given and is clamped gear 14(pinch wheels) a downward pressure, guarantee to expect that film 10 does not slide when peeling off.As shown in Figure 5, while implement using, first clamp system is lifted, manually tear one section and expect that film 10 puts on stripping gear 6, then clamp system is put down to compression.Clamp arm 16 also can connect clamp 18, can conveniently lift clamp system by clamp 18.
In addition, it should be noted that, the specific embodiment described in this specification, the shape of its parts and components, institute's title of being named etc. can be different.All equivalence or simple change of doing according to described structure, feature and the principle of the utility model patent design, are included in the protection range of the utility model patent.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection range of the present utility model.