CN104703897A

CN104703897A - Object dropping impact mitigation device

Info

Publication number: CN104703897A
Application number: CN201380053414.4A
Authority: CN
Inventors: 秋本茂; 谷和宪
Original assignee: Murata Manufacturing Co Ltd
Current assignee: Murata Manufacturing Co Ltd
Priority date: 2012-10-15
Filing date: 2013-10-10
Publication date: 2015-06-10
Anticipated expiration: 2033-10-10
Also published as: KR101717164B1; KR20150046280A; CN104703897B; TWI510421B; WO2014061540A1; JP6107831B2; JPWO2014061540A1; TW201425187A

Abstract

A dropping impact mitigation device that mitigates the dropping impact of a falling object (C), having a plurality of filters (10-18) having provided stretched in parallel therein a plurality of wires (10b-18b) having intervals therebetween through which an object can pass, said filters being combined in the vertical direction in layers such that the filter wire positions differ vertically. When an object is dropped on to the filters, the object collides with one of the filter wires, the impact force is lessened by the deformation of the wire, and the object can readily pass between the wires, therefore the frequency with which said object collides with subsequent objects can be lowered, and breakages or fragmenting of the objects can be prevented.

Description

The falling impacts reliever of object

Technical field

The present invention relates to a kind of falling impacts relaxing the object (such as SMD components or particulate matter etc.) of free fall, and suppress and stop object to produce falling impacts reliever that is damaged or distortion.Object in the present invention refer to may produce because of falling impacts more than specified value break defect or distortion solid body, its raw MAT'L or purposes do not limit.

Background technology

In the past, during for situation about transporting in manufacturing step as the SMD components of laminated ceramic capacitor, sometimes must transfer SMD components to height lower than its another carrying line from carrying line of certain height.In this situation, made SMD components carry out the method transported along the slide slip as chute (chuter) in the past, but in order to the height above in regulation slides, chute itself becomes large-scale, and space that in the horizontal direction also must be larger.

Therefore, there is following method: as shown in figure 15 in the past, configure many belt conveyor 101,102,103 up and down multistagely, the SMD components C of conveyance on the belt conveyor 101 of most higher level is made to fall on the band 102 of next stage, and make SMD components C drop to bringing of subordinate successively, thus the falling impacts relaxing the SMD components C of every 1 grade transports.SMD components as laminated ceramic capacitor breaks or defect owing to easily producing because of falling impacts, therefore the height of drop H of the SMD components of every 1 grade must be controlled as allowing below distance of fall.

Such as, when making the laminated ceramic capacitor of rectangular shape of 0.5 × 0.5 × 1.0mm when the height free fall of 1m, falling speed accelerates to about 4m/s.If make SMD components with this velocity collision to rigid body plate (such as ceramic wafer), then confirm that the probability that SMD components has more than 30% is broken or defect equivalent damage by experiment.On the other hand, if height of drop is set to 50 ~ 150mm, then through confirming to break or defect is roughly zero, allow that distance of fall is 50 ~ 150mm.Thus, when falling from the height more than 150mm, some falling impacts must be taked to relax countermeasure.

If make SMD components fall on the soft cushion such as amido formate or sponge, then this pad can absorb impact, and can avoid breakage or the damage of SMD components.But when making multiple SMD components fall to continuously on pad, the SMD components first fallen and follow-up SMD components can collide, and this collision also can cause generation to be broken or defect.

Above-mentioned use with carrying device in, in order to make the SMD components of rear whereabouts not collide on the SMD components first fallen, must the conveyance speed of accommodation zone.Therefore, must continuous drive many band always, kinetic energy also becomes large.In addition, multiple SMD components is made to fall if disposable, even if the conveyance speed then improving band also possibly cannot be tackled.

The chute device had to relax the conveyer for the purpose of falling impacts is disclosed in patent documentation 1.This chute device possesses in short transverse, to arrange multistage and transport path that is configuration, and comprise: falling speed reduces unit, the upstream-side-end of the transport path being positioned at downside in neighbouring each transport path is rotatably connected to the end of downstream side of the transport path being located thereon side by it, makes each transport path tilt to downstream from upstream side in a free state downwards; And line, it is arranged at the transport path of most subordinate, makes this transport path increase or declines, thus carries out the height adjustment that falling speed reduces unit.

But, when the chute device described in patent documentation 1, just like inferior problem:

(1) in order to transport path that the mitigation and needing fully realizing falling impacts is quite grown;

(2) fall because one side moves one side in Z-shaped, therefore movement can spend the plenty of time;

(3) owing to must link many transport paths rotationally via hinge axis, therefore device becomes large-scale and complicated.

Prior art document

Patent documentation

Patent documentation 1: Japanese Patent Laid-Open 2007-153576 publication

Summary of the invention

Invent technical matters to be solved

Therefore, a kind of impact that can realize each lower junk is the object of the present invention is to provide to relax, even and if the simply constructed falling impacts reliever of junk collision each other under also can suppressing when multiple lower junk falls continuously.

The technological means that technical solution problem adopts

In order to reach above-mentioned purpose, 1st embodiment of the present invention with a kind of falling impacts reliever, it relaxes the falling impacts of the object in whereabouts, it is characterized in that: combine in the vertical direction multilayer have above-mentioned object by interval and the extended filter having many lines abreast, or have above-mentioned object by mesh and line is compiled webbed filter, and the line position of upper and lower filter is different from each other in the horizontal direction, and the width making above-mentioned multi-bed filter vertical projection at least become above-mentioned object to the line interval in the multiview drawing of horizontal surface gained in the region that object falls cannot to pass through.Herein, the line position of so-called upper and lower filter is different from each other in the horizontal direction, though comprise the situation etc. that upper and lower filter is the position skew of nonparallel situation or parallel horizontal direction each other.

Generally speaking, according to the formula of impulse force, the impulsive force F produced because of the collision of object represents with following (1) formula.

F＝mv/Δt···(1)

Herein, m is the quality of object, and v is speed, and Δ t is collision time.That is, the impulsive force F in order to make object be subject to declines, by the momental reduction (reduction of=speed) of the right molecule or the collision time of the right denominator increase and reach.

By making the top of multiple object inherent filtration device fall, thus object collision extremely wherein single line, by the deformation of line, the collision time Δ t of object and line is extended, thus impulsive force is reduced.Such as, the lower junk collided with line is by the deformation of line, and more than its collision time Δ t reaches several times ~ 10 times compared to the collision with rigid body plate, the impulsive force F produced because its collision reaches several points below 1 to 1/10 compared to the collision with rigid body plate.

Because the line position of upper and lower filter is different from each other in horizontal direction, and the width making the multi-bed filter vertical projection combined up and down at least become object to the line interval in the multiview drawing of horizontal surface in the region that object falls cannot to pass through, therefore no matter object with which kind of attitude falls, and all can not stopped by whole filter.Also namely, even if pass the object of upper filter, the line of the some filters to lower floor can also still be collided.Being reduced with causing to fall and break velocity step ladder type by the collision with multilayer line, thus impulsive force each time can be reduced, by repeating the collision lower than allowing impulsive force, the object of whereabouts can be reclaimed in crack-free defect ground.In addition, due to filter have lower junk by interval and extended many lines or many lines are configured to netted abreast, therefore object is easily through filter, thus object can be suppressed to residue on the filter of the superiors.Therefore, even if make multiple object fall continuously, lower junk also can quickly move through the filter of the superiors, and can avoid the collision with follow-up lower junk.If this falling impacts reliever is applied to highly different carrying lines, sufficient height (such as more than 1m) can be obtained in then falling at 1 time, thus the space of in-plane can be reduced, and object can be made to fall continuously, thus improve treatment effeciency.And, due to without the need to actuating device, therefore simple structure, can kinetic energy be cut down.

As filter, also can adopt following structure: the many elasticas possessing framework and the extended inner space in this framework abreast, and framework can be stacked in the vertical direction.In this case, by the multiple framework of stacked on top of one another, and load can not be applied to each line, and the position of each line can be located exactly.As line, both can be metal wool, also can be resin thread, but more satisfactory for having the young's modulus and the line not easily broken that can play sufficient buffering effect when object collision.

In addition, many lines and frame portion also can form as one and be formed by carrying out etching to one piece of metal sheet by filter.In this situation, owing to being made frame portion and line form as one by etching, therefore, without the need to carrying out operation line being held in framework, filter can be made simply.Carry out laminated multi-layer filter by arranging spacer between this filter, thus falling impacts reliever can be formed.

In addition, about the line interval of filter, compared to upper strata filter and to reduce the structure of the filter of lower floor also effective.In other words, the line interval of each layer of filter also can more for the layer on top is thinner, more for the mode that the layer of bottom is closeer sets.When making the top of multiple object inherent filtration device fall continuously, certain object collision is to the line of the superiors, and the line that another object collides to below through the line of the superiors.Because the interval of the line on upper strata is wide compared with the interval of lower filter, therefore object facilitates penetration of the filter of the superiors, and the object collision passed is to one of them filter of lower floor, and falling impacts is relaxed.So, by reducing the collision probability of the object collided with the line on upper strata, and the quantity of the object bounced in upper filter is reduced, therefore the object of the object of spring collision frequency each other or spring can be made to decline with the collision frequency of the object fallen from top, thus the defect of object can be prevented or break.In addition, due to object can be suppressed to be stranded on the filter of the superiors, therefore object collision each other can be suppressed.

Also can adopt at the structure that configure non-parallel from the line direction of levels filter adjacent during vertical top view.In other words, also lower filter can be configured in the mode intersected with each other from line during vertical top view relative to upper filter.When making the top of multiple object inherent filtration device fall, certain object collision is to the line of the superiors, and other objects are through the line of the superiors.Because the line on upper strata and the line of lower floor are non-parallel, therefore be easy to collide one of them filter to lower floor through the object of the line on upper strata, falling impacts is relaxed.

In preferably embodiment, also can adopt the structure of line direction relative to the oblique inclination of horizontal shaft of at least the superiors' filter.When forming filter by net, as long as the line in a structure direction into the net is relative to transverse axis, the line in other directions also can be horizontal direction.In addition, though also can by parallel to each other for the line of all filters configured up and down and obliquely configure, as long as one or more filters comprising the filter of the superiors tilt.In this case, the object collision fallen is higher to the probability of filter of inclination of the filter comprising the superiors, the deformation of line not only can be utilized to relax its falling impacts, and to horizontal direction or tilted direction spring, thus can avoid and follow-up falling objects head-on crash.Therefore, that object collision each other can be suppressed to cause breaks or defect.

As another embodiment of the present invention, also can adopt following formation, that is, comprise: multiple net, it passes through many lines is netted combining; And supporting mass, its by relative to vertical axis on tilted direction and separated from each other be greater than above-mentioned object maximum sized gap and support multiple above-mentioned net abreast and form.Top line of the net portion vacates the A/F of the horizontal direction being greater than above-mentioned gap and configures abreast.In this situation, the upper surface that the object collision fallen is netted to one of them, utilizes the elasticity of net that the collision time of object and net is extended, and relaxes impulsive force.Though lower junk is in online spring, because net tilts towards tilted direction relative to vertical axis, therefore spring direction becomes tilted direction or horizontal direction, and enters to the downside of adjacent net.Therefore, the collision with follow-up lower junk can be avoided.Lower junk by with adjacent 2 collisions of netting and reducing with causing to fall and break velocity step ladder, thus impulsive force each time can be reduced, and by repeating the collision lower than allowing impulsive force, thus object can be reclaimed in crack-free defect ground.

During situation preferably, each net both can be netted combining by line with the interval that object cannot pass through, also can be with by line with object by interval be netted combination and the position of the line of neighbouring net mode different from each other is formed.When the former situation, as mentioned above, simultaneously make SMD components and net repeat multiple impacts one side and absorb whereabouts energy.In the latter case, even if the object of the net through upper strata, also colliding one of them net to lower floor, by repeating the collision lower than allowing impulsive force, thus object can be reclaimed in crack-free defect ground.

Invention effect

As mentioned above, according to the 1st embodiment of the present invention, owing to combining in the vertical direction, multilayer parallel ground is extended to be had the filter of many lines or line is compiled webbed filter, therefore when making the top of multiple object inherent filtration device fall, object collision is single line extremely wherein, by the elasticity of line, the collision time of object and line is extended, therefore impulsive force reduce.In addition, because the line position of upper and lower filter is different from each other in the horizontal direction, and the width making multi-bed filter vertical projection to the line interval in the multiview drawing of horizontal surface gained become object cannot to pass through, therefore by with the collision of many lines the falling speed of object can be made steps reduce, thus the impulsive force that can reduce each time, and by repeating the collision lower than allowing impulsive force, thus object can be reclaimed in crack-free defect ground.In addition, because filter is by forming with the mode layout line with the maximum sized interval being greater than lower junk, therefore object is easily through between line, thus object can be suppressed to residue on the filter of the superiors.Therefore, even if make multiple object fall continuously, following excellent effect also can be played: lower junk quickly move through the filter of the superiors, and can avoid the collision with follow-up lower junk.And, due to without the need to actuating device, therefore simple structure, can kinetic energy be cut down.

In addition, according to the 2nd embodiment, owing to separating the maximum sized gap being greater than object relative to vertical axis and be configured with multiple net abreast on tilted direction, therefore by the elasticity of net, the collision time of object and net is extended, thus mitigation impulsive force.And, because object is bounced to tilted direction or horizontal direction by net, and enter to the downside of adjacent net, therefore the collision with follow-up lower junk can be avoided.Its result, can reclaim object in crack-free defect ground.

Accompanying drawing explanation

Fig. 1 is the overall cutaway view of the 1st embodiment of falling impacts reliever of the present invention.

Fig. 2 is the block diagram of the filter of the falling impacts reliever of pie graph 1.

Fig. 3 is the birds-eye view of the structure after stacked multiple filter of top view Fig. 1.

Fig. 4 is the IV-IV line cutaway view of Fig. 3.

Fig. 5 is the cutaway view of the filter in the 2nd embodiment of the present invention.

Fig. 6 is the birds-eye view being laminated with the state of filter in the 3rd embodiment of the present invention.

Fig. 7 is the VII-VII line cutaway view of Fig. 6.

Fig. 8 is the block diagram of other embodiment of filter of the present invention.

Fig. 9 is the block diagram of other embodiment of falling impacts reliever of the present invention.

Figure 10 is the schematic cross sectional view of the 4th embodiment of falling impacts reliever of the present invention.

Figure 11 is the cutaway view of the filter of the falling impacts reliever forming Figure 10.

Figure 12 is the schematic cross sectional view of the 5th embodiment of falling impacts reliever of the present invention.

Figure 13 is the schematic cross sectional view of the 6th embodiment of falling impacts reliever of the present invention.

Figure 14 is the schematic cross sectional view of the 7th embodiment of falling impacts reliever of the present invention.

Figure 15 is the skeleton diagram of an example of carrying device in the past.

Detailed description of the invention

-1 embodiment-

Fig. 1 ~ Fig. 4 represents the 1st embodiment of falling impacts reliever of the present invention.The falling impacts that this device 1A is used in such SMD components (object) C of the laminated ceramic capacitor of the rectangular shape of such as 0.5 × 0.5 × 1.0mm size relaxes.Moreover Fig. 1 illustrates in order to easy understand, SMD components C is different with reality from the size relationship of each component.

This compact buffering device 1 by being fixed and obtaining under the state being laminated with multi-bed filter 10,11,12,13.Herein, though illustrate the structure being laminated with 4 layers of filter, as long as be more than 2 layers, then its number of plies is any.This device 1A is fixed on the bottom of lower doff 2 via guiding tube 3.Be configured to multiple SMD components C by falling continuously in lower doff 2.

The structure of the filter 10 of constituent apparatus 1A as shown in Figure 2, is made up of the framework 10a of quadrilateral shape and many line 10b of the extended inner space in framework 10a abreast.In Fig. 2, have 5 line 10b although extended abreast between the 2 relative limits of 1 framework 10a, the radical of line 10b is any.As the material of line 10b, as long as there is the young's modulus that can give full play to buffering effect when SMD components C collides and the line not easily broken, both can be metal wool, also can be resin thread.As long as according to material, wire diameter, the tension force of the setting lines such as the weight of SMD components C or proportion.The interval D of line 10b is set greater than the upperlimit (being 1mm in the example of above-mentioned SMD components) of SMD components C.

Framework 10a ~ the 13a of each filter is fixing by location by fixing tools (not shown) such as concavo-convex or screws with the state of stacked on top of one another.Filter 10,11,12,13 is laminated with in the mode that the position of the line of upper and lower filter is different from each other.Fig. 3 is that the 4th figure is the cutaway view in the direction orthogonal with line by a routine vertical projection of the filter 10 ~ 13 of stacked on top of one another to the multiview drawing of horizontal surface gained.In figure 3, represent the line 10b of the superiors with thick line in order to easy understand, represent the line 11b of the 2nd layer with fine rule, represent the line 12b of the 3rd layer with single dotted broken line, be represented by dotted lines the line 13b of the 4th layer, but institute wired be identical thickness.Distance h between neighbouring line is equivalent to the thickness of framework 10a ~ 13a, and this distance h is greater than the upperlimit of SMD components.In this embodiment, the line 10b ~ 13b of all filters 10 ~ 13 is parallel, and the position of the line of neighbouring filter offsets from each other in the horizontal direction.And, when multilayer laminated filter 10 ~ 13 is projected to horizontal plane, the minimum clearance d (with reference to Fig. 3) of horizontal direction of wired 10b ~ 13b be set to the minimum size (being 0.5mm in above-mentioned example) of SMD components C below.Therefore, no matter SMD components C with which kind of attitude falls, and all can not there is SMD components C not and linear contact lay and through the situation between line.In other words, all SMD components C must collide more than 1 time with certain single line, and impulsive force is relaxed.Moreover, though line interval d to be set to the width that SMD components cannot pass through in Fig. 3 on whole of filter, but also not necessarily want whole of filter, if such as limit the fall area of SMD components in advance, as long as be then at least set at Nei Jiangxian interval, the region d that SMD components falls the width that SMD components cannot pass through.

Moreover, the example of the line illustrating the filter of all layers as stacked on top of one another in Fig. 3, Fig. 4 non-proper alignment in the vertical direction, but in the relation of the size etc. of the number of plies of filter, line interval D and SMD components, the line of 1 or multi-bed filter also can on above-below direction proper alignment.

In the below of device 1, vacate gap and be configured with recycling pallet 4.The line 13b of undermost filter 13 and the diff-H of recycling pallet 4 are set to allows distance of fall (such as 150mm) below, can sufficient decent owing to falling by the SMD components C of filter 10 ~ 13, even if therefore recycling pallet 4 is not formed with elastic body, also can when do not produce break or defect reclaim SMD components C.

Herein, the action of the falling impacts reliever 1A comprising above-mentioned formation is described.If make multiple SMD components C by free fall continuously in lower doff 2, then several SMD components C collides the line 10b to the filter 10 of the superiors.By the deformation of line 10b, the collision time of SMD components C and line 10b is extended, and reduce impulsive force.Though other SMD components C, through the filter 10 of the superiors, because the position of the line of neighbouring filter is different from each other, therefore can collide with the wherein single line of lower floor, and relax impulsive force as described above.And, reduced with causing to fall and break velocity step ladder by the collision of the line with multilayer, and by repeating the collision lower than allowing impulsive force, and reclaim SMD components C while recycling pallet 4 crack-free defect can be utilized.

In addition, the interval D due to the line of each filter has the maximum sized interval being greater than lower junk, therefore SMD components C is easily by the gap of line, and object can be suppressed to residue on the filter 10 of the superiors.Therefore, even if make multiple SMD components C fall continuously, SMD components C also can quickly move through the filter 10 of the superiors, and can avoid the collision with follow-up SMD components C.Its result, what can prevent SMD components collision each other from causing breaks or defect.

For confirming the effect of the 1st embodiment, prepare in the quadrangle framework of internal dimensions 200mm with the extended filter having the metal wool of wire diameter 0.1mm in 2mm interval.In this case, the interval of adjacent metal wool becomes 1.9mm.By stacked for this filter 4 layers and form falling impacts reliever.Make SMD components (laminated ceramic capacitor of 0.5 × 0.5 × 1.0mm size) under the position of the top 1m of this device fall behind, can produce hardly break or defect reclaim SMD components.

-2 embodiment-

Fig. 5 represents the 2nd embodiment of falling impacts reliever of the present invention.In the 1st embodiment, illustrate the example of the identical filter 10 ~ 13 of the interval D of laminated multi-layer line, but in the present embodiment, compared to upper strata filter and reduce the line interval of the filter of lower floor.In other words, each layer of filter line interval with more for top layer then thinner, more for the mode that the layer of bottom is then closeer sets.

Such as, if the line interval of the filter 10 of the superiors is set to D1, the line interval of the filter 11 of the 2nd layer is set to D2, the line interval of the filter 12 of the 3rd layer is set to D3, the line interval of the filter 13 of the 4th layer is set to D4, then becomes

D1＞D2＞D3＞D4。Moreover, even if be preferably minimum interval D 4, be also greater than the upperlimit of SMD components.

Moreover, according to by the SMD components of filter by characteristic, the line interval D 1 of the Ji Kejinshi the superiors is greater than the line interval D 2 ~ D4 of other layers, also can be set to identical by the line interval D 3 of the 3rd, the 4th layer, D4.Such as,

D1＞D2＝D3＝D4

D1＞D2＞D3＝D4

In this embodiment, due to the collision probability by reducing the SMD components collided with the line on upper strata, the quantity of the SMD components bounced on the filter 10 of the superiors is reduced, so SMD components collision each other or the collision frequency of the SMD components bounced and the SMD components fallen from top of spring can be reduced, thus can prevent the defect of SMD components or break.

-3 embodiment-

Fig. 6, Fig. 7 represent the 3rd embodiment of falling impacts reliever of the present invention.In this embodiment, become nonparallel mode with the position of the line of neighbouring filter, be laminated with filter 10,11,12,13.In figure 6, represent the line 10b of the superiors with thick line, represent the line 11b of the 2nd layer with fine rule, represent the line 12b of the 3rd layer with single dotted broken line, be represented by dotted lines the line 13b of the 4th layer.Herein, though illustrate the example orthogonal towards the line direction with the filter on the downside of it of the line of the filter of upside, not necessarily orthogonal.The interval D being arranged at each line of 1 filter is greater than the upperlimit of SMD components C in the same manner as the 1st embodiment.And then make filter 10 ~ 13 vertical projection being laminated with multilayer in the multiview drawing of horizontal surface gained, the minimum clearance s between line 10b ~ 13b is set to below the minimum size of SMD components C.Therefore, no matter SMD components C with which kind of attitude falls, all can not through between the line of all filters 10 ~ 13.

Time under the feelings of this embodiment, also can play the action effect identical with the 1st embodiment.When SMD components is flat pattern, if layout line abreast as the 1st embodiment, its minimum clearance d then must be made very little, and need multi-bed filter, but in this embodiment, because upper and lower line intersects (near-net shape), even if therefore itself and line also can be made reliably to collide for flat SMD components, thus the number of plies of filter can be reduced over.In addition, due to the exponent number position of colliding for the 1st of SMD components C and line the time can be made more sparsely to disperse, therefore SMD components collision frequency each other can be reduced.

Fig. 8 represents other embodiment of filter of the present invention.In this embodiment, each filter 14 by quadrilateral shape framework 14a and within it have SMD components C by mesh and form in many line 14b of netted combination.By stacked on top of one another multilayer this kind of filter 14, and make the position of the line of neighbouring filter different from each other in horizontal direction, thus form falling impacts reliever.

In the case of the embodiment, owing to arranging line 14b in length and breadth, therefore with such as configure compared with wired situation as the 1st embodiment abreast, the quantity being stranded in the SMD components on the filter 14 of the superiors increases, and uprises with the possibility that follow-up SMD components collides.Therefore, more satisfactory is filter 14 compared to upper layer side, reduces the mesh of the filter 14 of lower layer side successively.In this case, the quantity of the SMD components be stranded on the filter 14 of the superiors can be reduced, thus SMD components collision frequency each other can be reduced.

Fig. 9 represents other example of filter 20.Many lines 21 and frame portion 22 to form as one form by carrying out etching to one piece of metal sheet by this filter 20.When filter 20 of the present embodiment, due to thinner thickness, therefore by stacked multiple filter 20 between the spacer (not shown) of frame-shaped, thus the gap of regulation can be guaranteed between upper and lower filter.Its result, can form falling impacts reliever simply.

Although also the line of filter can be set to have tension force, in order to the spring of SMD components C, line is preferably made to relax slightly to arrange.But if make line relaxation, then line interval each other can become uneven, and the impact absorbing effect of SMD components C may be variant.When utilizing metal sheet to form filter 20 as shown in Figure 9, the pars intermedia connecting part 23 each other connecting many lines 21 on the direction orthogonal with its axis direction can be made to form as one.The thickness of connecting part 23 is identical with line 21.By adding connecting part 23 as described above, even if thus the deviation at its interval also can be eliminated when making line 21 lax.The radical of connecting part 23 not necessarily wants 1, as long as the length of line 21, can be increased to more than 2.Because connecting part 23 can be formed while etching metal sheet, therefore machining period number can not be increased.

-4 embodiment-

Figure 10 represents the 4th embodiment of falling impacts reliever 1B of the present invention.Mode laminated multi-layer (the being 4 layers herein) filter 15 ~ 18 tilted relative to vertical axis with filter plane in this embodiment forms.2 is lower doff, and 5 for being fixed on the guiding tube of the lower surface of lower doff 2, and be also provided with guiding tube 6 in the lower end of filter.Guiding tube 5,6 has lower surface 5a and the upper surface 6a of the inclination contacted with the filter 15 of the superiors and undermost filter 18, and one side prevents dispersing of SMD components C from one to guide downwards.Guiding tube 5,6 is arranged arbitrarily according to the formation of falling impacts reliever 1B.

Each filter 15 ~ 18 is made up of the framework 15a of quadrangle and extended many parallel line 15b between the frame portion 15a1 on its 2 relative limits as shown in Figure 10.Be greater than the upperlimit of SMD components C at the interval of the transverse direction of each line 15b, and neighbouring line is each other in the horizontal with the aspect of predetermined distance skew, identical with the 1st embodiment.Certainly, the interval of the above-below direction between neighbouring line is also greater than the upperlimit of SMD components C.In each filter, line 15b is with respect to the horizontal plane with angle Cl.This tiltangleθ is more satisfactory is the scope of 15 ° ~ 75 °.In this embodiment, the line 15b ~ 18b of the extended multilayer in stacked on top of one another (being 4 layers herein) filter 15 ~ 18 is all with identical angle Cl.The upper and lower surface of the frame portion 15a1 on 2 relative limits is set to horizontal surface, and the upper and lower surface of 2 frame portion 15a2 of the frame portion 15a1 on above-mentioned 2 limits of link is tilted to tilted direction, with stable when being laminated with multiple framework 15a ~ 18a.Moreover the shape of framework is not limited to the structure of Figure 11, also can use the filter shown in Fig. 9.Because other formations are identical with the 1st embodiment, therefore omit repeat specification.

Guiding tube 6 lower horizontal be configured with the belt conveyor 7 be continuously driven in the direction of the arrow, thus the recyclable components and parts C by filter 15 ~ 18, and conveyance is to other positions.As recovery unit, be not limited to belt conveyor 7.

In this case, because the SMD components C that falls collides the line 15d ~ 18d to tilting, therefore the SMD components bounced up and down significantly reduces, can make with after the frequency that collides of the SMD components that falls reduce sharply.Therefore, the impact alleviation effects of the deformation utilizing line can be realized, and breaking or defect of can preventing SMD components collision each other from causing.Because the falling speed by the SMD components C of filter 15 ~ 18 is enough low, therefore the impact fallen on belt conveyor 7 can not cause generation to be broken or defect, even and if on band 7 stacked multiple SMD components, do not have the situation of SMD components breakage yet.Therefore, energy driven at low speed band 7, according to circumstances also can stop.

In the 4th embodiment, though illustrate the example that tilts with equal angular of wired 15d ~ 18d, as long as at least the line of the filter 15 of the superiors tilts, leaning angle that both can be different compared with the line of its filter of layer more on the lower tilts, and also can be level.

As the concrete example of the 4th embodiment, prepare, with the extended filter having the metal wool of such as wire diameter 0.1mm in the spaced and parallel ground of 2mm, to make filter plane tilt 30 ° relative to horizontal direction, stacked altogether 6 layers filter and form falling impacts reliever.1000 SMD components (laminated ceramic capacitor of 0.5 × 0.5 × 1.0mm size) are fallen behind successively under the position of the top 1m of this device, cannot confirm to produce to have and break or the SMD components of defect.Therefore, the validity of this falling impacts reliever is confirmed.

In the 4th embodiment, though tilt with equal angular to make the line of all filters, and the mode that the line of lower floor offsets in the horizontal relative to the line on upper strata is carried out stacked, but also can be set as the 2nd embodiment that the layer of line interval more for top of each layer of filter is then thinner, the layer being more bottom is then closeer, also as the 3rd embodiment, can become nonparallel mode with the position of the line of neighbouring filter and carry out stacked.And then, also can use the filter of net structure as the 3rd embodiment, the filter be made up of the metal sheet that Fig. 9 is such can also be used.

-5 embodiment-

Figure 12 represents the 5th embodiment of falling impacts reliever of the present invention.This falling impacts reliever 1C comprises: SMD components C is carried out to the guiding tube 30 falling to guiding; Accept the landslide portion 40 of the SMD components C fallen from guiding tube 30; Accept the reduction part 50 of the SMD components fallen from the bottom in landslide portion 40; And for accepting the recoverer 60 of the SMD components C by reduction part 50.The arrow of Figure 12 represents the fall trajectory of SMD components C.

The top 40a in landslide portion 40 tilts with the angle θ (being preferably greater than 60 °) being greater than 45 °, thus collides with the angle being less than 45 ° and the SMD components C fallen.In addition, also SMD components C can be slided in landslide portion 40 by the leaning angle of the top 40a increasing landslide portion 40 further.In this situation, use the sheet material of surface smoothing better as landslide portion 40.Therefore, SMD components C can not be caused to damage because of the collision with landslide portion 40.The mode that the bottom in landslide portion 40 diminishes gradually with leaning angle bends, and the leaning angle of its bottom 40b is close to 0 °.Repeatedly collide with landslide portion 40 on one side or while the SMD components C of movement downwards on one side of sliding in landslide portion 40 oliquely downward discharges from bottom 40b, drop in reduction part 50.In addition, landslide portion 40 is not limited to graphic shape, and also can be such as the sheet material tilted with unified leaning angle, also can be that bottom 40b tilts downwards with the angle of the leaning angle being less than top 40a.

Reduction part 50 passes through to be configured to from top to bottom by multiple filter 51, its leaning angle reduces gradually and forms.Filter 51 is positioned at below with the side of the bottom 40b near landslide portion 40 and the mode that its opposition side is positioned at top tilts, the leaning angle of the filter 51a of topmost is maximum, and the leaning angle of the filter 51b of foot is roughly 0 ° (approximate horizontal).As filter 51, any filter that the filter 10 described in Fig. 2, the filter 14 described in Fig. 8, the filter 20 described in Fig. 9 and other grid are such can be used.Here, make the leaning angle of multiple filter 51 gradually change to configure, but also can make all filter 51 horizontal arrangement as shown in Figure 1, all filters can also be made as shown in Figure 10 to tilt with equal angular.The SMD components C oliquely downward discharged from the bottom 40b in landslide portion 40 drops to the filter 51a (filter that leaning angle is maximum) of the topmost of reduction part 50, and by this filter 51a, thus, the speed component of vertical direction and horizontal direction reduces.Afterwards, by during multiple filters 51 of below, the vertical direction of SMD components C and the speed component of horizontal direction reduce gradually, thus on recoverer 60, do not have breakage, are recovered to defect.As recoverer 60, can grid be used, also can use the recycling pallet 4 of Fig. 1, the band conveyor 7 etc. of Figure 10.

When SMD components C falls from higher position, possibly SMD components cannot be made fully to slow down by means of only multiple filter.When using above-mentioned falling impacts reliever 1C, landslide portion 40 may make the speed component of the vertical direction of SMD components have deceleration to a certain degree, afterwards due in the reduction part 50 by employing multiple filter 51, even if therefore make SMD components fall from higher position, can there is no breakage yet, reclaim SMD components to defect.

-6 embodiment-

Figure 13 represents the 6th embodiment of falling impacts reliever of the present invention.The device 1D of this embodiment makes multiple net 70 relative to the oblique inclination of vertical (inclined angle alpha), and vacates specified gap S and configure abreast.Inclined angle alpha is preferably the scope of 30 ° ~ 75 °.Net 70 gap S is each other set greater than the upperlimit of SMD components C.The rising wood of net 70 is vacated the A/F W of the horizontal direction large compared with gap S and configures abreast.The relation of gap S and A/F W is as follows.

W＝S/sinα

Many elastica 70a are netted combining with the interval that SMD components C cannot pass through by net 70.The both ends in the direction vertical with paper of net 70 are supported by collection box (supporting mass) 71, fall to this collection box 71 and be recovered by the SMD components C in net 70 gap each other.Moreover, though illustrate the example that collection box 71 doubles as the supporting mass of support mesh 70, except supporting mass, also separately belt conveyor etc. can be configured at the below of net 70.

As net 70, more satisfactoryly its impulsive force can be made for having to be reduced to the elasticity of about less than 1/10 when colliding with SMD components, such as, also can use and metal wool is compiled webbed net.Such as, as net 70, the metal wool of wire diameter 0.08mm can be used, and mesh can be used to be set to the metal gauze of 0.132mm.Make the SMD components of 0.5 × 0.5 × 1.0mm size from the height free fall of 1m, when colliding with horizontally disposed net 70, about the collision time (speed reaches the time of zero) through confirming when collide with net is about 0.3m second.On the other hand, when SMD components falls to rigid body (ceramic wafer of thickness 5mm), according to the impact simulation of SMD components to rigid body, think that its collision time is about 0.003 second.If consider these results, then with regard to (1) formula, think situation that online collision reclaims time be applied to SMD components impulsive force be reduced to about less than 1/10 compared with situation about falling to rigid body.

In this device 1D, owing to making to have the oblique inclination of elastomeric net 70 as above, therefore as shown in arrow in Figure 13, initial crash to the SMD components of net 70 to horizontal direction or tilted direction spring, and folds into the rear side to adjacent net.By repeating multiple impacts, velocity step ladder type ground reduces, thus can reclaim SMD components with collection box 71 to crack-free defect.In addition, because net 70 configures abreast in the mode with the maximum sized interval S being greater than SMD components, therefore the SMD components first fallen can fold into the rear side to net rapidly, thus can make to reduce sharply with the collision frequency of SMD components below.Therefore, even if make multiple SMD components fall continuously, what also can prevent SMD components collision each other from causing breaks or defect, and SMD components can not be stranded in, and any one is online.

-7 embodiment-

Figure 14 represents the 7th embodiment of falling impacts reliever of the present invention.The device 1E of this embodiment be configured to the mesh d of net 72 to be set to SMD components C by interval, and the aspect that the position of the line 72a of neighbouring net 72 is different from each other in the horizontal direction, different from the device 1D of the 6th embodiment.Specifically, the mode below the minimum size becoming SMD components with the interval s of the position of the line 72a of the position and lower floor that make the line 72a on upper strata, offsets from each other in the horizontal direction.Therefore, even if SMD components is through the net 72 on upper strata, also can collides the line 72a of the net 72 to lower floor, thus whereabouts energy can be absorbed.Moreover collide SMD components to net 72 in the same manner as the 6th embodiment, one side underspeeds to repeated collision one side class nature between relative 2 nets 72.

SMD components after being not limited to as the object taking the present invention as object, also can be cental element device (not having outer electrode), formed products, sintered body, metallic object, granule etc.When granule, cause generation to be broken or defect due to easy in the same manner as SMD components because of falling impacts, therefore the present invention is effective.When the situation of sintered body or metallic object, owing to also can cause producing distortion or warpage because of falling impacts, therefore the present invention is effective.The shape of object is not limited to cuboid, also can be disc or the shape as lozenge.Especially effective when there is the situation of object at angle (edge).

[nomenclature]

C SMD components (object)

1A, 1B, 1C, 1D, 1E compact buffering device

2 times doffs

3 guiding tubes

4 recycling pallets

7 belt conveyor

10,11,12,13,14 filters

10a ~ 14a framework

10b ~ 14b line

15,16,17,18 filters

15a framework

15b line

20 filters

30 guiding tubes

40 landslides portion

50 reduction part

60 recoverers

70 nets

71 collection boxes (supporting mass)

Claims

1. a falling impacts reliever, the falling impacts of the object in relaxing, is characterized in that:

Above-below direction combination multilayer have described object by interval and abreast extended have the filter of many lines or have described object by mesh and line is compiled webbed filter,

The line position of upper and lower filter is different in the horizontal direction, the width at least becoming described object to the line interval in the multiview drawing of horizontal surface gained to make described multi-bed filter vertical projection in the region that object falls and cannot pass through.

2. falling impacts reliever as claimed in claim 1, is characterized in that,

Described filter comprises the described many lines of framework and the extended inner side in this framework abreast,

Described framework can be stacked in the vertical direction.

3. falling impacts reliever as claimed in claim 1, is characterized in that,

Described filter by etching one piece of metal sheet, thus makes many lines and frame portion form as one and obtain.

4. the falling impacts reliever as described in any one of claims 1 to 3, is characterized in that,

The mode being less than the filter on upper strata with the line interval of the filter of lower floor sets the line interval of described filter.

5. the falling impacts reliever as described in any one of Claims 1-4, is characterized in that,

When from vertical top view, the line direction of the adjacent levels filter of stacked described filter configures non-parallelly.

6. the falling impacts reliever as described in any one of claim 1 to 5, is characterized in that,

In stacked described filter at least the line direction of the filter of the superiors relative to the oblique inclination of horizontal shaft.

7. a falling impacts reliever, the falling impacts of the object in relaxing, is characterized in that, comprising:

Net, this Netcom crosses and is combined into netted by many elasticas and obtains; And

Supporting mass, this supporting mass relative on the tilted direction of vertical axis and multiple described net is supported in the separated from each other maximum sized gap being greater than described object abreast,

Multiple described top line of the net portion vacates the A/F of the horizontal direction being greater than described gap and configures abreast.

8. falling impacts reliever as claimed in claim 7, is characterized in that,

Described Netcom crosses the interval group synthetic mesh that cannot be passed through with described object by many elasticas and obtains.

9. falling impacts reliever as claimed in claim 7, is characterized in that,

Described Netcom cross by many elasticas with described object by interval group synthetic mesh and obtain, and the position of the line of neighbouring net is different in the horizontal direction.