CN201758514U

CN201758514U - Electronic part feeding device

Info

Publication number: CN201758514U
Application number: CN2010205058858U
Authority: CN
Inventors: 谷口史之
Original assignee: Juki Corp
Current assignee: Juki Corp
Priority date: 2009-08-24
Filing date: 2010-08-24
Publication date: 2011-03-09
Anticipated expiration: 2020-08-24
Also published as: JP5544058B2; JP2011044673A

Abstract

The utility model relates to an electronic part feeding device, which enables to successfully send out and discharge a carrier tape even when electronic parts enter into a discharging path. With respect to the device, a tooth part is inserted in a sprocket wheel (20) in a feeding hole of the carrier tape and rotates, the carrier tape which accommodates the electronic parts in a cavity is conveyed along a guiding surface (22A) of a base (22), the electronic parts are fed in order to an absorption position (28) in an opening part (26) formed on an upper cover (24), the carrier tape which becomes empty as the fed electronic parts are absorbed is discharged via the discharging path located at the downstream side of the absorption position, and the guiding surface of the base, which is in a state where an electronic part feeding device body is installed on a part installation device, has a horizontal part (34) extending to the middle (26A) of the opening part and an inclined part (36) which begins with the middle of the opening part and descends towards the downstream direction.

Description

Electronic part feeder

Technical field

The utility model relates to a kind of electronic part feeder to apparatus for mounting component supply electronic unit, and this apparatus for mounting component is installed to electronic unit on the substrate.

Background technology

Known a kind of electronic part feeder, its material containing band is set to reel (Reel) shape, form the hopper (Cavity or Pocket) of accommodating electronic unit with prescribed distance in the longitudinal direction, this material containing band is transported to the parts absorption position of regulation, by suction nozzle on the parts absorption position from hopper attract electrons parts.

In this electronic part feeder, the material containing band that is dummy status after parts need being supplied with is sent smoothly and is taken out of.

But, when suction nozzle attract electrons parts, drop sometimes, in this case, electronic unit can be stance in hopper sometimes, perhaps the posture of exposing in the hopper.In this case,, stand in the hopper or the electronic unit that reveals the outside can enter into the discharge path in downstream, can be stuck on the discharge path, thereby produce the problem that hinders the material containing band to carry if carry the material containing band like this.

In order to address this problem, patent documentation 1 discloses a kind of electronic part feeder.This existing electronic part feeder as shown in Figure 1, material containing band T carries to the direction of arrow by sprocket wheel 2, in the front side of this sprocket wheel 2, is formed with peristome 6 on the feedway main body, it constitutes the parts absorption position by suction nozzle 4 attract electrons parts P.And the position being positioned at above the sprocket wheel 2 also is provided with loam cake 8, so that electronic unit P can not float in the downstream.This loam cake 8 is provided with passage (Tunnel) 8A of portion, the space that also can pass through when its formation makes electronic unit P be standing state in hopper, under this electronic unit P enters into situation in the discharge path, utilize this channel part 8A, can not hinder the conveying of material containing band T and material containing band T is successfully sent and discharges.

No. 2990886 communique of patent documentation 1 Japan Patent

The utility model content

But, aforementioned patent document 1 disclosed electronic part feeder, because the lateral center part at loam cake is outstanding above the device outside, form the channel part of convex, so not only make the profile of device become big in the vertical, but also need to prepare the cover unit of convex, exist parts complex-shaped, become the high problems such as reason of cost.

Problem of the present utility model is, a kind of electronic part feeder is provided, it not only can keep the function of the material containing band being sent smoothly and discharging under the situation in electronic unit enters discharge path, and can be by making device self densification, the component shape of constituent apparatus is simplified, thereby can realize cost degradation.

Electronic part feeder in the utility model comprises: the material containing band, and it is interval with the hopper and the feeding hole of accommodating electronic unit respectively in the longitudinal direction in accordance with regulations; Sprocket wheel disposes a plurality of tooth portion in its periphery, and this tooth portion is radially outstanding, can embed in the feeding hole of material containing band, and this sprocket wheel is carried aforementioned material containing band by rotation; Pedestal, it has along the guide surface of chain Wheel-guiding material containing band; And loam cake, it is formed with peristome, the absorption position of this peristome and attract electrons parts is oppositely arranged, this loam cake fixed configurations is above aforementioned sprocket wheel, the aforementioned guide surface that on aforementioned pedestal, is provided with, the rake that is descended by horizontal part and downstream forms continuously, solves aforementioned problems thus.

In the utility model, preferred following technical scheme, that is, aforementioned levels portion begins to be formed up to aforementioned peristome midway from upstream side; Aforementioned rake, with aforementioned peristome be that the top downstream descends midway, the front end of the immediate tooth portion of the end of its downstream direction and aforementioned sprocket wheel is compared, and is positioned at radial outside.

The effect of utility model

According to the utility model, because on the guide surface when conveying contains the material containing band of electronic unit on the pedestal of downstream guiding, on the discharge path in the downstream of comparing with the absorption position in the last peristome that covers formation, with this peristome is top midway, setting begins the rake (dodging the face shape) that downstream descends from the horizontal part that comprises absorption position, so the below of the downstream of this peristome forms new space, therefore even electronic unit enters into from absorption position with the state of standing under the situation in the discharge path in downstream, the material containing band also can be sent smoothly and discharge, and the existing feedway that is provided with channel part with loam cake is compared, densification that can implement device, the simplification of component shape, and cost degradation.

Description of drawings

Fig. 1 wants portion's profile for the feature of the existing electronic part feeder of expression

Fig. 2 is installed to the illustrated brief strabismus map of the state on the apparatus for mounting component for the electronic part feeder of a embodiment that the utility model is related to

Fig. 3 is the part oblique view from the state of the fore-end of the electronic part feeder of rear observation present embodiment

Fig. 4 is the part oblique view from the state of the section of the fore-end of the above-mentioned electronic part feeder of forward observation

Fig. 5 wants portion's profile for the feature of the electronic part feeder of expression present embodiment

Fig. 6 be will with corresponding pedestal of part shown in the circumference R1 of Fig. 5 and existing base shape contrast expression want portion's amplification profile

Fig. 7 wants portion's amplification profile for the problem that produces under the situation that rake is not set on the pedestal

Fig. 8 wants portion's amplification profile for the effect of present embodiment that rake is set on pedestal

Fig. 9 vertically wants portion's profile for the effect of the present embodiment observed from the downstream, that rake is set at pedestal

Figure 10 be the corresponding rake end of part shown in the circumference R2 with Fig. 5 feature want portion's profile

Embodiment

Following with reference to accompanying drawing, describe embodiment of the present utility model in detail.

Among Fig. 2, the electronic part feeder 10 of present embodiment, the apparatus main body that it can freely load and unload, with level as shown in the figure, be installed on the loader pedestal 14 of the assigned position that is arranged at the apparatus for mounting component 12 that has omitted detailed structure, its leading section inserts the inboard of covering 12A, and the material containing band forward end direction (downstream) of the reel extraction of illustrated upstream side is never carried, and near the absorption position the electronic unit forward end that is housed in the hopper is supplied with.The electronic unit that is supplied to like this, the suction nozzle absorption of the boarded head 16 that is had by apparatus for mounting component 12 and keep after, carry on the not shown substrate.

The following feature that the electronic part feeder of present embodiment is described with reference to Fig. 3 to Fig. 5.

In the electronic part feeder of present embodiment, as shown in Figure 5, make the 20A of tooth portion embed sprocket wheel 20 rotations in the feeding hole (not expressing) of material containing band T, carry the material containing band T that in hopper C, contains electronic unit P along the guide surface 22A on the pedestal 22, supply with electronic unit P successively to the absorption position 28 in the peristome 26 that loam cake 24 places form, and make because the electronic unit P of supply is adsorbed the material containing band T that becomes sky discharges by the discharge path 30 that is positioned at these absorption position 28 downstreams.

The material containing band T that index(ing) feed by aforementioned sprocket wheel 20 is transferred is restricted to direction towards the below by aforementioned loam cake 24, thereby is transferred to the downstream shown in Fig. 3 arrow A (front end) direction.This loam cake 24 by leaf spring 31 pretension downwards, moves abreast with horizontal guide surface on the pedestal 22, when following arbitrarily the material containing tape thickness, prevents the disengaging that is caused by floating of material containing band T.

If the material containing band T of index(ing) feed stops at the assigned position place, then by being located at the knee-action of the suction nozzle 32 on the aforementioned boarded head 16, the electronic unit P on the absorption absorption position 28.

In above-mentioned a series of actions, take place under the absorption condition of poor, as described above shown in, electronic unit P can be stuck on the discharge path, might hinder the conveying of material containing band.

In the present embodiment, in order to prevent above-mentioned situation, be installed to the guide surface 22A on the aforementioned pedestal 22 under the state of apparatus for mounting component 12 at apparatus main body shown in Figure 2 as described above 10, as be equivalent to remove the material containing band and amplify the shown in Figure 6 of show state from Fig. 5, have: horizontal part 34, it is corresponding with the absorption position 28 till the 26A midway of aforementioned peristome 26; And rake 36, its with the peristome of this peristome 26 midway 26A be top 36A, downstream descends.In addition, the scope of absorption position 28 is determined according to specification, be adsorbed to guarantee parts, so the peristome upper limit position of 26A on throughput direction midway, by with the position relation decision of the upstream extremity 26C of peristome 26.

With the shape of the guide surface 22A on the pedestal 22 of present embodiment and by 38 overlapping being illustrated among Fig. 6 of the existing base shape shown in the double dot dash line, as shown in Figure 6, existing horizontal part extends to the below of loam cake 24 always, promptly extend to the downstream of comparing with the downstream 26B of peristome 26 always, relative therewith, the horizontal part 34 of present embodiment extends to till its 26A midway, and downstream after this becomes rake 36.Thus, because the part of the existing base shape 38 shown in the double dot dash line is removed, below downstream 26B, form the non-existent space S of prior art.

Like this, in the present embodiment, on pedestal 22, form the face of dodging that constitutes by rake 36, thereby utilize this to dodge face 36 and make material containing band T bending downwards, even therefore the electronic unit P in the hopper C is a standing state, these parts P is kept out of the way, so on the discharge path 30 in absorption position 28 downstreams, can the generation part obstruction etc. feed motion bad, can carry out the index(ing) feed of material containing band T swimmingly.

The effect of the face of dodging 36 under the absorption condition of poor takes place in following more specific description electronic unit.

As previously mentioned, owing to the wrong electronic unit P that is transported to discharge path of absorption, situation about being transferred with the state of undesired posture shown in Figure 5 as described above can appear in the hopper C of material containing band T.In this case, if the horizontal part 34 on the pedestal 22 extends to the downstream position of comparing with openend (downstream) 26B in peristome 26 downstreams as prior art always, shown in Fig. 7 amplifies, below this openend 26B because the space that forms by the face of dodging not, so when being transported to the downstream with the state of undesired posture, electronic unit P can conflict mutually with end face (openend) 26B of the loam cake 24 at dotted line position A place, cause that electronic unit P is overlapping and be trapped in dotted line position B place, perhaps be sandwiched in and wait between the loam cake 24 and that feeding takes place is bad.

In the present embodiment,, just can avoid the shortcoming of prior art by the simple structure of dodging face 36 being set comparing with the 26A midway of peristome 26 on the pedestal 22 that is positioned at the downstream.That is, as Fig. 8 and shown in Figure 9, even contact with the end face of loam cake 24 by the electronic unit P of the wrong undesired posture that causes of absorption, owing to guarantee the space that make a concession in oriented downstream, so by the downward lateral bending song of material containing band T, feeding is bad can not to be taken place, and can successfully carry.

As shown in Figure 9, at the opposition side of sprocket wheel 20, because space S makes the below open, material containing band T is the lateral bending song downwards, and the parts P through peristome 26 can not have to be detained and successfully to be transferred thus.

As previously mentioned, in the patent documentation 1, in order to obtain same effect, opposite with present embodiment, at the last channel part that forms convex that covers, the wrong electronic unit of absorption can be made a concession, but with respect to the parts that are positioned in material containing band T upper surface, need to take to increase measures such as convex sometimes, along with the size of electronic unit becomes big, the shape of loam cake also can maximize, complicated, thereby produce expensiveization.

To this, in the present embodiment, just can realize by the rake 36 so simple structures that pedestal 22 are provided with side yielding downstream, therefore the advantage on the cost is also big, and do not need complex-shapedization with loam cake, cost degradation can be realized simultaneously thus, stable electronic unit supply can be realized simultaneously.

In addition, in the present embodiment, the roughly whole inboard that is positioned at the 20A of tooth portion of aforementioned sprocket wheel 20 of the rake that guide surface had 36 on the pedestal 22, but its terminal 36B is shown in Figure 10 amplification, with the 20A of tooth portion of this sprocket wheel 20 near the time, be the convex that is positioned at its outside.

In the present embodiment, the terminal 36B that is positioned at rake 36 downstreams becomes and compares the shape that is positioned at the outside with the immediate tooth 20A of portion, thereby makes and be embedded in the material containing band T that carries under the state of the 20A of tooth portion of sprocket wheel 20 in the feeding hole, can successfully break away from from sprocket wheel 20.

Thus, by present embodiment, the material containing band breaks away from also smooth and easy from sprocket, can also prevent parts on absorption position to beat the parts that cause are stood or absorption position departs from etc., has the advantage that can more reliably the material containing band be discharged smoothly.

Claims

1. electronic part feeder, it comprises:

The material containing band, it is interval with the hopper and the feeding hole of accommodating electronic unit respectively in the longitudinal direction in accordance with regulations;

Sprocket wheel disposes a plurality of tooth portion in its periphery, and this tooth portion is radially outstanding, can embed the sending in the hole of material containing band, and this sprocket wheel is carried aforementioned material containing band by rotation;

Pedestal, it has along the guide surface of chain Wheel-guiding material containing band; And

Loam cake, it is formed with peristome, the absorption position of this peristome and attract electrons parts is oppositely arranged, this loam cake fixed configurations above aforementioned sprocket wheel,

It is characterized in that,

The aforementioned guide surface that is provided with on aforementioned pedestal, the rake that is descended by horizontal part and downstream forms continuously.

2. electronic part feeder according to claim 1 is characterized in that,

Aforementioned levels portion begins to be formed up to aforementioned peristome midway from upstream side;

Aforementioned rake, with aforementioned peristome be that the top downstream descends midway, the front end of the immediate tooth portion of the end of its downstream direction and aforementioned sprocket wheel is compared, and is positioned at radial outside.