CN100508719C - Device for supplying electronic element - Google Patents

Abstract

The object of this invention is to suppress an over-feeding of a carrier tape of an electronic component feeding device mounted on an electronic component packaging device. The electronic component feeding device 10 mounted on the electronic component packaging device and feeding an electronic component has a feeding mechanism 20 for feeding the career tape T with the electronic component sealed at an equal pitch at a receiving and feeding position U of the electronic component packaging device. The feeding mechanism has a ratchet wheel 22 with concave parts formed along the circumferential direction at uniform intervals, and a regulatory claw 51 for stop-positioning engaged with each concave part. A claw-pressing mechanism 60 for pressing the regulatory claw from its back in synchronization with the feeding.

Description

Device for supplying electronic element

Technical field

The present invention relates to be installed in the device for supplying electronic element on the electronic element installation device.

Background technology

Device for supplying electronic element is installed in electronic component is assemblied on the electronic element installation device of substrate, and each device for supplying electronic element is to the electronic component of electronic element installation device supply regulation.This device for supplying electronic element possesses conveying mechanism, and this conveying mechanism is transported to the delivery position of electronic element installation device with conveyer belt when keeping conveyer belt, said conveyer belt with the pitch packages that equates the electronic component of regulation.

In addition, conveying mechanism has following various parts: the sprocket wheel that drives conveyer belt; The ratchet that is connected with sprocket coaxiality; The rotation feed mechanism that rotates with the angular unit drive sprocket of regulation; The interval of intermittently sending the recess of usefulness to according to ratchet limits the restriction ratchet (with reference to the 5th figure of Japanese Patent Document 1) of stop position.

This conveying mechanism is from being arranged on the conveyance drive force of the drive unit acquisition conveyer belt on the electronic element installation device when the supplies electrons element.Like this, conveying mechanism will be by rotating feed mechanism, with the encapsulation of electronic component corresponding predetermined angular unit at interval, drive sprocket rotates.

In addition, make sprocket wheel stop at restriction ratchet fore-end mesh ratchet gear and intermittently send on the position of gear, so that the electronic component that is encapsulated on the conveyer belt is positioned on the correct delivery position.Thus, electronic element installation device is just accepted the action through the electronic component of location, finishes the supply of electronic component.

; high speed along with the installation exercise on the electronic element installation device; and the electronic component that need supply or the maximization of its conveyer belt; inertia force when above-mentioned device for supplying electronic element in the past stops in the sprocket wheel location increases; the restriction ratchet can not stop on the recess of regulation of ratchet fully, can produce the unfavorable condition that conveyer belt sent assigned position.

Under this unfavorable condition, can take to strengthen the elastic component of supporting restriction ratchet, and will limit ratchet with bigger power and be pressed in countermeasure such on the ratchet.Yet, may cause limiting the damage or the fracture of ratchet or ratchet etc. so again, and the problem that the wearing and tearing deterioration takes place.In addition, also exist the restriction ratchet that must overcome the high strength engagement to carry conveyer belt, and must strengthen the problem of conveyance drive force.

Japan's Patent Document 1: real fair 2-No. 15177 communiques

Summary of the invention

Purpose of the present invention is exactly the conveying of crossing that prevents conveyer belt.

One of the present invention is a kind of being installed on the electronic element installation device to supply the device for supplying electronic element of electronic component, it constitutes, has conveying mechanism, this conveying mechanism is carried the conveyer belt that has equidistantly encapsulated electronic component to the delivery position of electronic element installation device, this conveying mechanism has along circumferencial direction and separates the ratchet that uniformly-spaced forms recess, and can be fastened on the restriction ratchet that the definite stop position in each recess is used, also have and carry synchronously, from the ratchet pressing mechanism of restriction ratchet rear pressurization.

In said structure, conveying along with conveyer belt, ratchet is subjected to rotating drive power, several recesses in a plurality of recesses that connect along circumferencial direction and be provided with sent the engagement with the restriction ratchet, stop to import the moment of rotating drive power halfway, restriction ratchet and predetermined recess engagement, ratchet just stops operating, meanwhile, conveyer belt is positioned on the delivery position of regulation.At this moment, because the ratchet pressing mechanism is synchronous with conveying, compress the restriction ratchet from the rear, the restriction ratchet just temporarily is engaged in the recess of ratchet forcefully, remains the recess that can not surpass regulation, conveyer belt can be located and go up in position.

In addition, " rear " of so-called " compressing the restriction ratchet from the rear " is meant from a side opposite with ratchet the pressurization of restriction ratchet.In addition, so-called " compressing ", be meant when from the rear to the restriction ratchet towards the situation of ratchet one side pressurization with stop or the restriction ratchet retreats so that ratchet does not push back any in the situation of recess.

The present invention's two has identical structure with one of the present invention, and the constituting of conveying mechanism, obtain the conveyance drive force of conveyer belt from electronic element installation device, and the compression motion of ratchet pressing mechanism to be the conveyance drive force of passing through to be obtained limit ratchet.

In said structure, from the actuating force of electronic element installation device acquisition driving conveyer belt, and the ratchet pressing mechanism is the pressurization that limits ratchet by the part of its conveyance drive force.Therefore, suitably synchronous with the conveying of conveyer belt, limit the compression motion of ratchet.

One of the present invention has and carries synchronously, and to the ratchet pressing mechanism that the restriction ratchet in the recess that is fastened on ratchet pressurizes, can temporarily be fastened in the recess forcefully so limit ratchet.In addition, even under the situation that conveyer belt is carried at a high speed, perhaps conveyer belt or be encapsulated under the bigger situation of electronic component on the conveyer belt also can overcome its inertia force, and the conveyer belt location is gone up in position.

Also have,,, therefore compare, can reduce the damage that limits ratchet or ratchet, break or wear and tear with the situation of powerful engaging constantly so the restriction ratchet just engage with ratchet is powerful off and on because the pressurization of restriction ratchet is carried out synchronously with carrying.In addition, can also suppress the increase of the conveyance drive force that conveyer belt causes because of ratchet.

In addition, under the situation that the pressurization of restriction ratchet and conveying each time finish to carry out synchronously, not only can determine the position of conveyer belt accurately, and, can also suppress to limit pawl-and-gearing damage, break and wear and tear, and can suppress the increase of the conveyance drive force of conveyer belt.

The present invention's two ratchet pressing mechanism limits the pressurization of ratchet by the part conveyer belt actuating force that obtains from electronic element installation device, so can limit the compression motion of ratchet more exactly synchronously in the course of conveying of conveyer belt.

Description of drawings

Fig. 1 is the brief configuration figure of the major part of device for supplying electronic element embodiment of the present invention;

Fig. 2 is the action specification figure of device for supplying electronic element shown in Figure 1;

Fig. 3 is the brief configuration figure of another example of ratchet pressing mechanism shown in Figure 1.

Symbol description

10: device for supplying electronic element

13: gate

20: conveying mechanism

21: sprocket wheel

22: ratchet

23: power input arm

24: the rotating drive arm

25: manual lever

27: the gate arm

40: send detent mechanism to

41: send ratchet to

50: feed mechanism intermittently

51: the restriction ratchet

60: the ratchet pressing mechanism

61: arm

62: pressure-producing part

63: torsion coil spring

P: power input projection

T: conveyer belt

U: delivery position

W: encapsulation

Embodiment

Below, the device for supplying electronic element 10 of the expression embodiment of the invention that sees figures.1.and.2.Fig. 1 is the brief configuration figure of device for supplying electronic element 10 major parts; Fig. 2 is the key diagram of the course of action of device for supplying electronic element 10.

Above-mentioned device for supplying electronic element 10 also can be referred to as banded pay-off usually, under the state of supporting with the conveyer belt T that uniformly-spaced is packaged with electronic component, be assemblied on the electronic element installation device, the encapsulation W of each electronic component on the conveyer belt T, be transported on the delivery position U of head H of electronic element installation device, with the supply electronic component.In addition, because device for supplying electronic element 10 all is to supply a kind of electronic component to a machine usually, so electronic element installation device assembles the electronic component of installation exercise requirement on device for supplying electronic element.

Here, said conveyer belt T is described earlier.This conveyer belt keeps with the reeling condition that is wound on the tep reel, and remains in the device for supplying electronic element 10 with tep reel.In addition, conveyer belt T is formed with the recess that uniformly-spaced holds electronic component along its length direction, is pasting the film that is used for encapsulating electronic components on the surface of each recess opening one side.Therefore, this conveyer belt is to carry along the transfer passage that forms on the frame of device for supplying electronic element 10, and on the position of electronic component delivery position U front, film is stripped from, and carries out the handing-over of electronic component with the state of recess opening.

In addition, on conveyer belt T, use accommodation hole uniformly-spaced forming along its length direction to carry, the projection on the sprocket wheel 21 of this accommodation hole and conveying mechanism 20 described later engages.

Above-mentioned device for supplying electronic element 10 has following each several part: maintaining part, and maintenance has encapsulated the conveyer belt T of electronic component successively, expression among the figure; Drive the conveying mechanism 20 of conveyer belt T; Stripping off device is peeled off the film of conveyer belt T, expression among the figure; Ratchet pressing mechanism 60, the restriction ratchet 51 to aftermentioned conveying mechanism 20 in official hour pressurizes; And the frame 11 that supports above-mentioned each structure.

(other structures of frame)

The left and right directions that above-mentioned frame 11 is made on Fig. 1 is microscler, the retaining part of conveyer belt T is arranged on the left part of not representing among Fig. 1, be arranged on right part in conjunction with projection 12 and be entrenched on the mounting portion of electronic element installation device, be provided with the not shown stop mechanism of fixed electronic element erecting device in the bottom.

And, on frame 11, also be formed with the transfer passage of conveyer belt T, this passage from the maintaining part of conveyer belt T by after near the upper end of this frame 11, near the right part, turn back downwards (diagram is omitted).

In addition, near the transfer passage the upper end of frame 11 has been set the delivery position U of electronic component midway, on this delivery position U, is provided with the gate of opening (shutter) 13 (omitting diagram at Fig. 1 and Fig. 2, referring to Fig. 3) when handing-over.In addition,, be provided with among the figure expression not, packaging film is peeled off and made its stripping off device that turns back upward,, be provided with the winding mechanism of being stripped from packaging film in the not shown left part of frame one side in the front of the delivery position U of transfer passage.

(overall structure of conveying mechanism)

Conveying mechanism 20 has: the sprocket wheel 21 that drives conveyer belt T; Ratchet 22 is with these sprocket wheel 21 coaxial and rotations simultaneously; Power input arm 23 is bearing in mounting end (right part among a Fig. 1) side of frame 11, and can waves; Rotating drive is with arm 24, support for sprocket wheel 21 same axle center on and can wave; Send detent mechanism 40 to, only rotating drive is passed to ratchet 22 with the part of waving in the actuating force of the reciprocating direction of arm 24; Obtain the manual lever 25 of conveyance drive force by manual operation; What connect that manual lever 25 and power imports arm 23 is connected link rod 26; Feed mechanism 50 intermittently engages with recess around uniformly-spaced being arranged on ratchet 22, and rotates with the unit of being spaced apart of each recess; Gate arm 27 supports to also waving in same axle center with sprocket wheel 21, drives the opening and closing movement of gate 13.

(conveying mechanism: sprocket wheel)

Sprocket wheel 21 is discoideus, by the bolster on its core, is supported on the frame 11 and also can rotates.On the periphery of sprocket wheel 21, be formed with along the equally spaced snap fit tabs of this circumference edge portion, this snap fit tabs can be inserted the conveying of conveyer belt T with in the accommodation hole, engages with it.The interval of each snap fit tabs is arranged to consistent with the interval of accommodation hole with each conveying of conveyer belt T.

(conveying mechanism: ratchet)

Ratchet 22 is diameter than slightly little discoideus of above-mentioned sprocket wheel 21, and heart part, and can be rotated on frame 11 by support shaft supports therein.This ratchet 22 and sprocket wheel 21 coaxial supportings, and be connected with this sprocket wheel 21 and rotate simultaneously.

In addition, on the excircle of ratchet 22, uniformly-spaced formed protuberance and recess side by side continuously along circumferential edges.That is, formed recess between at interval in each of a plurality of continuous protuberances.Ratchet 22 is limited in rotating with the state of steadily sending to the unit of being spaced apart between each recess by feed mechanism 50 at intermittence.Like this, sprocket wheel 21 rotates steadily to send state to the angular unit same with ratchet 22, makes conveyer belt T send a unit feed corresponding to this unit angle to.

In addition, the arrangement angles of the snap fit tabs of sprocket wheel 21 is preferably the integral multiple of configuration space angle of the recess of ratchet 22 at interval.

(conveying mechanism: power input arm)

Power input arm 23 is the center with the support that is bearing on the fulcrum 28, has to three directions and extends first end 23a, the second end 23b and the 3rd end 23c that is provided with, and above-mentioned fulcrum 28 is arranged at frame 11.And the leading section that first end 23a extends out is configured to also will protrude than the mounting end of frame 11, and is equipped with roller 29 on this leading section.In addition, this first end 23a from electronic element installation device supplies electrons element the time, provides the conveyance drive force of conveyer belt.

That is, at roller 29 lower positions, the power that is provided with the conveying operations power input device of electronic element installation device is imported protruding P, and this power is imported protruding P and driven upward when carrying.Like this, power input arm 23 is the center by roller 29 inputs with fulcrum 28 just, rotates counterclockwise the actuating force of shaking that direction drives in Fig. 1 and Fig. 2.

In addition, on the fore-end of the second end 23b, connecting rotating drive arm 24 and gate arm 27, on the mid portion of its bearing of trend, connecting extension spring 30, this spring with apply active force from electronic element installation device to the direction rightabout that waves of first end 23a input power.That is, power input arm 23 is subjected to all the time as clockwise rotating the oscillatory forces of direction among Fig. 1, and power is imported the wobble drive power that protruding P then imports this oscillatory forces of antagonism.

On the fore-end of the second end 23b, be provided with slotted hole 23d along its bearing of trend, rotating drive just couples together by the pin 31 that is connected that passes this slotted hole 23d with the end separately of arm 24 and gate arm 27.Since these two rotating drive with arms 24 and gate arm 27 all with ratchet 21 coaxial supportings, and can swing, so the swinging track that the leading section of the swinging track that the second end 23b is described and each arm 24,27 is described is different.But, because the connection pin 31 that becomes its tie point on the second end 23b can move along slotted hole 23d, so when keeping this connection status, allow swing each other.

Therefore, can wobble drive power be passed to rotating drive arm 24 and gate arm 27 by being input to the wobble drive power on the power input arm 23.In addition, be input to the wobble drive power on these two rotating drive usefulness arms 24 and the gate arm 27, the direction of rotation with power input arm 23 promptly clockwise rotates direction (seeing Fig. 1 and Fig. 2).

(conveying mechanism: manual lever)

On the 3rd end 23c of above-mentioned power input arm 23, connecting an end that connects link rod 26, another end that connects link rod 26 then is connected on the manual lever 25.This root manual lever 25 is positioned at across the opposite side of sprocket wheel 21 with power input arm 23, is fulcrum with fulcrum pin 32, is bearing on the frame 11, and can swings.

The swing end of this manual lever 25 is the power input parts that can import wobble drive power with manual operation, therefore, extends the upper end of being arranged to from frame 11 and gives prominence to.In addition and since connect another end of link rod 26 be connected this swing end near, so, when by manual operation during from this swing end input wobble drive power, can be from the 3rd end to the equidirectional wobble drive power of power input arm 23 inputs.Therefore, by from this root manual lever 25 input wobble drive power, and by power input arm 23, rotating drive with arm 24 and the detent mechanism 40 of sending to described later, can drive sprocket 21 rotations.In addition, can also carry out the conveying of conveyer belt T by manual operation.

(conveying mechanism: rotating drive is with arm and send detent mechanism to)

As mentioned above, rotating drive is bearing on the frame 11 with sprocket wheel 21 coaxially with the cardinal extremity part of arm 24, and can swing, and its swing end is connected on the second end 23b of power input arm 23.

Sending detent mechanism 40 to has: send ratchet 41 to, be bearing in rotating drive with also swinging on the mid portion of arm 24; Torsion coil spring 42, the direction application of force that enters ratchet 22 recesses to the leading section of sending ratchet 41 to.

The above-mentioned base end part of sending ratchet 41 to is bearing in rotating drive with on the centre position of arm 24, promptly, than the excircle of ratchet 22 also on slightly laterally the position, its fore-end then under the state of the rotation feeding direction of sprocket wheel 21 (be used for carrying the rotation direction of conveyer belt T: clockwise rotating direction among Fig. 1), is connected to by torsion coil spring 42 on the excircle of ratchet 22.

According to said structure, send detent mechanism 40 to by importing the wobble drive power to power input arm 23 from electronic element installation device or manual lever 25, rotating drive is swung with the clockwise direction of arm 24 in Fig. 1.So the leading section of sending ratchet 41 to just enters in the recess of ratchet 22, just can rotate with arm 24 driving pawls 22 and sprocket wheel 21 with rotating drive.

On the other hand, when power input arm 23 carried out the swing of backhaul direction by extension spring 30, rotating drive was just swung to rotating counterclockwise direction with arm 24.At this moment, send ratchet 41 to and just depart from, anticlockwise rotating drive power is not passed to ratchet 22 to the outside of radial direction.

That is, when the direction of sending ratchet 41 to is rotated, because the reaction force acts that is subjected to from ratchet 22, does not depart from so send the elastic force that ratchet 41 has overcome torsion coil spring 42 to laterally at the bearing of trend of sending ratchet 41 to (length direction)., when rotating in the opposite direction,, just do not overcome the elastic force of torsion coil spring 42 and departed from laterally so send ratchet 41 to because the reaction force that is subjected to from ratchet 22 is consistent with the swaying direction of sending ratchet 41 to.

(conveying mechanism: the gate arm)

The middle body of gate arm 27 and sprocket wheel 21 coaxial being bearing on the frame 11 can be swung, and are the center with this middle body, extend arm to both direction.In addition, the arm of a side is connected the leading section of the second end 23b of above-mentioned power input arm 23.In addition, the arm on another direction of gate arm 27 then is connected with gate 13 (referring to Fig. 3), and gate 13 is bearing in the upper end of frame 11, and can be alongst reciprocating.

When gate 13 is in Fig. 1 left position, just make that be arranged on the peristome that the conveyer belt T on the electronic component delivery position U exposes is in closing state, and when it moves on the right-hand position among Fig. 1, make that just being arranged on the peristome that the conveyer belt T on the electronic component delivery position U exposes is in open mode.In addition, gate 13 by among the figure not the extension spring of expression be subjected to left pulling force all the time, so often be in closed condition.In addition, import the wobble drive power by electronic element installation device or manual lever 25 to power input arm 23, when rotating drive was swung with the clockwise direction of arm 24 in Fig. 1, the arm of the opposite side of gate arm 27 just to the clockwise direction swing, was opened gate 13.

(conveying mechanism: intermittently feed mechanism)

Intermittently feed mechanism 50 has: restriction ratchet 51 at manual lever 25 with near around the ratchet 22, is bearing on the frame 11, and can swings; Pressing spring 52 enters direction pressurization in the recess of ratchet 22 towards the leading section of restriction ratchet 51; Eccentric pin 53 is supporting restriction ratchet 51 and it can be swung, and by its eccentric shaft, can regulate the position of the front end of restriction ratchet 51 according to its offset.

The base end part of above-mentioned restriction ratchet 51 is bearing on the position slightly laterally than the periphery of ratchet 22, its leading section (is the rotation direction that conveyer belt T is carried at the rotation feeding direction towards sprocket wheel 21, promptly, clockwise rotate direction among Fig. 1) state under, be connected to by pressing spring 52 on the excircle of ratchet 22.

According to said structure, intermittently feed mechanism 50 passes through from electronic element installation device and manual lever 25, and by sending detent mechanism 40 to, to power input arm 23 input wobble drive power, the direction that clockwise rotates in the ratchet 22 towards Fig. 1 is rotated.And when rotating, the leading section of restriction ratchet 51 enters the recess that is passed through successively, departs to the outside of radial direction again, the driving of rotating is produced damping, yet allow rotation.Then, when interrupting input to the rotating drive power of ratchet 22, the leading section that limit ratchet this moment engages with the recess that is entered, and keeps ratchet 22 thus, stops the rotation of sprocket wheel 21 and the conveying of conveyer belt T.Like this, just can correctly correctly be positioned at the encapsulation W of conveyer belt T on the delivery position U.

In addition, applying to ratchet 22 under the situation of the rotating drive power that rotates counterclockwise, the leading section of restriction ratchet 51 just enters in the recess of ratchet 22.At this moment, because the action direction of the extruding force of the suffered ratchet 22 of restriction ratchet 51 is the directions (length direction) of extending along restriction ratchet 51,, and do not depart from laterally so restriction ratchet 51 can overcome the elastic force of pressing spring 52.Thereby, can stop the backward rotation of ratchet 22 and sprocket wheel 21.

(ratchet pressing mechanism)

Ratchet pressing mechanism 60 has: the arm of swinging with manual lever 25 61; Be arranged on the swing end of arm 61, and be connected to the pressure-producing part 62 at the rear of restriction ratchet 51 owing to the swing of arm 61; When pressure-producing part 62 butts restriction ratchet 51, apply the torsion coil spring 63 of extruding force to these restriction ratchet 51 1 sides.

Arm 61 is made bending, and its base end part is connected with manual lever 25 by fulcrum pin 32.

An overhang bracket of fulcrum pin 32 and can rotate on frame 11, and its another end is made and can by this attended operation, can be connected with arm 61 with manual lever 25 along axial connection.In addition, when coupling together, manual lever 25 just becomes integral body with arm 61, is the center swing with fulcrum pin 32.

The base end part of arm 61 is provided with slotted hole 61a along the direction with its length direction quadrature, passes at fulcrum pin 32 under the state of this slotted hole 61a, is connected with manual lever 25.In addition, when unclamping the connection of fulcrum pin 32, just can move adjusting along slotted hole 61a action bars to arm 61 with respect to manual lever 25.That is, by fulcrum pin 32 with have the base end part of the arm 61 of slotted hole 61a, the extruding force adjusting device when having constituted the distance adjusting means of 62 pairs of restrictions of pressure-producing part ratchet 51 and butt.

Manual lever 25, except by manual operation to the situation of power input arm 23 input wobble drive power, even import protruding P from the power of electronic element installation device under the situation of power input arm 23 input wobble drive power, the also inevitable direction that rotates counterclockwise in Fig. 1 is swung.Therefore, in this case, arm 61 is also swung to rotating counterclockwise direction simultaneously, so pressure-producing part 62 is just to restriction ratchet 51 1 side shiftings.

Pressure-producing part 62 is bearing on the swing end of arm 61, can swing.And, on the swing end of arm 61, be provided with block 61b, make progress so that the bearing of trend of pressure-producing part 62 is limited in the third side of the direction of advance that forms because of swing and pendulum radius direction to restriction ratchet 51 1 sides.In addition, under pressure-producing part 62 is connected to state on the block 61b, when being connected to the rear of restriction ratchet 51, just can limit ratchet 51 to the direction swing of leaving and withdraw from from this.

In addition, the leading section of the butt side of pressure-producing part 62 both can have been done in the arc-shaped, so that can not produce cut with restriction ratchet 51 butts the time, also can make the plane.In addition, select the material of pressure-producing part 62, its hardness is lower than the hardness of restriction ratchet 51, so also can obtain same effect, and irrelevant with its shape.

Torsion coil spring 63 pressure-producing part 62 in Fig. 1 clockwise direction swing and be connected on the direction on the block 61b and apply elastic force.Like this, be connected under the situation that limits ratchet 51 rears and withdraw from, just can apply extruding force by 62 pairs of restrictions of pressure-producing part ratchet 51, produce the pressurization that this is limited ratchet 51 by the elastic force of torsion coil spring 63 at pressure-producing part 62.

By said structure, under the situation of the throughput direction swing of conveyer belt T, pressure-producing part 62 is connected to the rear of restriction ratchet 51 at power input arm 23, strengthens the effect that restriction ratchet 22 rotates by this restriction ratchet 51.

In addition, as mentioned above,, just can regulate the distance between pressure-producing part 62 and the restriction ratchet 51 by the slotted hole 61a of arm 61 base end parts one side.And, wish that also pressure-producing part 62 when the transportation work (one stroke) of conveyer belt T finishes, perhaps before will finishing, is connected to the rear of restriction ratchet 51.Promptly, in conveying for conveyer belt T, import protruding P or by under the known situation of the oscillating stroke of manual lever 25 input by the power of electronic element installation device, hope is regulated in advance by arm 61 and fulcrum pin 32, so that pressure-producing part 62 is connected in the above-mentioned time on the restriction ratchet 51.

(action specification of device for supplying electronic element)

Device for supplying electronic element 10 with said structure under the state that is installed on the electronic element installation device, is imported protruding P when power and is driven, and when being moved upward, just as shown in Figure 2, power input arm 23 is just to rotating counterclockwise the direction swing.Along with this swing, rotating drive is just swung to clockwise direction with arm 24.Like this, ratchet 22 and sprocket wheel 21 just can rotate to clockwise direction by sending detent mechanism 40 to, send conveyer belt T to ormal weight.

In addition, in 23 swings of power input arm, manual lever 25 is the center by being connected link rod 26 with fulcrum pin 32 also with arm 61, to swing counterclockwise.And in the time that delivery stroke of the conveyer belt of stipulating finishes, pressure-producing part 62 is connected to the rear of restriction ratchet 51, exerts pressure to ratchet 22 1 sides.

So the extruding force that extruding force that restriction ratchet 51 is just produced by pressing spring 52 and pressure-producing part 62 are produced is prevented ratchet 22 to rotate, thereby the encapsulation W of conveyer belt T is positioned on the delivery position U of regulation.

In addition, undertaken by the manual operation of manual lever 25 under the situation about sending to of conveyer belt T, same, also be arm 61 swings, in the time that delivery stroke of the conveyer belt of stipulating finishes, pressure-producing part 62 is connected to the rear of restriction ratchet 51, exerts pressure to ratchet 22 1 sides.

Therefore, extruding force that restriction ratchet 51 is produced by pressing spring 52 and the extruding force that passes over from pressure-producing part 62 have been prevented the rotation of ratchet 22, and the encapsulation W of conveyer belt T is positioned on the delivery position U of regulation.

In addition, no matter be to import by the power of electronic element installation device under the situation of protruding P, or under by manually operated situation, all be to anticlockwise swing by power input arm 23, gate arm 27 is swung to clockwise direction, open the sluices 13, the electronic component in the encapsulation is adsorbed onto on the head H of electronic element installation device, finish the supply of electronic component.

(effect of device for supplying electronic element)

Device for supplying electronic element 10 has ratchet pressing mechanism 60, when conveyer belt T carries, owing to make pressure-producing part 62 be connected to the rear of restriction ratchet 51, so the fore-end of restriction ratchet 51 enters in the recess of ratchet 22 just by the extruding force of pressing spring 52 and the extruding force that is applied by pressure-producing part 62 powerfully.Therefore, even sprocket wheel 21 and ratchet 22 are very big or rotating speed is very high, perhaps, owing to the maximization of electronic component or conveyer belt T has bigger inertial time, restriction ratchet 51 can not produce revolution yet, can make the rotation of ratchet 22 and sprocket wheel 21 be controlled in the revolution amount of setting yet.Like this, just can be positioned at conveyer belt T on the correct delivery position U.

In addition, because being set in the pressing time of 62 pairs of restrictions of pressure-producing part ratchet 51 more near carrying the time that finishes, so reduced the state of restriction ratchet 51 secure engagement when rotating.In addition, 51 on ratchet of restriction is engaged on the ratchet 22 when stopping, thus damage and the wearing and tearing that can avoid increasing restriction ratchet 51 or ratchet 22, and increase needed rotary driving force.

(other)

Fig. 3 is the brief configuration figure of another example of ratchet pressing mechanism.The characteristics of this ratchet pressing mechanism 60A are that it is not by manual lever 25 the ratchet compression motion to be carried out synchronously with carrying action, but the compression motion of ratchet is carried out synchronously with carrying action.In addition, the formation that every and above-mentioned device for supplying electronic element 10 is identical all is marked with identical symbol, and omits its explanation.

This ratchet pressing mechanism 60A has: be arranged on the work lug boss 61A on the end of the gate 13 among Fig. 3; Be bearing on the frame 11, and can swing, and the pressure-producing part 62A that swings along with the opening action of gate 13.

Because bossing 61A is fixed on the gate 13, so carry out identical moving with gate 13.Therefore, right-hand the moving when open in Fig. 3, and when closing, move (closed condition is represented in double dot dash line) to left.

Pressure-producing part 62A is fastened on the bossing 61A by slotted hole 63A, and like this, it just can be swung along with moving of gate 13.The tangential direction that above-mentioned slotted hole 63A makes with respect to the circular arc track of drawing out owing to end swing of pressure-producing part 62A tilts.

And, the shape of another end of pressure-producing part 62A, size and towards being to set like this, when gate 13 is in the closed position, another end of pressure-producing part 62A is on the position of leaving the rear of limiting ratchet 51 (representing to leave state with double dot dash line among the figure), and along with gate 13 moves to the release position from off-position, its another end just arrives the rear of restriction ratchet 51.

In this ratchet pressing mechanism 60A, gate 13 also is to move to the release position by power input arm to anticlockwise swing, simultaneously, finished on the time point of once carrying at conveyer belt T, pressure-producing part 62A just is connected to the rear of restriction ratchet 51, suitably make ratchet 22 stop, can position more exactly conveyer belt T.

In addition, be not limited only to gate, other all mechanisms' interlocks that the ratchet pressing mechanism also can link with the conveying with conveyer belt T.In addition, in this case, it is desirable to be set in the moment that conveyer belt is once carried end, restriction ratchet 51 is carried out compression motion.

Claims (2)

1. an electronic component supply device has a conveyer belt of equidistant encapsulating electronic components and is transported to the conveying mechanism of the delivery position of electronic element installation device, and is installed on the electronic element installation device, it is characterized in that,

Above-mentioned conveying mechanism has along circumferencial direction and separates the ratchet that uniform interval forms a plurality of recesses, and can be fastened in above-mentioned a plurality of recess, determines the restriction ratchet that stop position is used;

Also have with above-mentioned conveying synchronous, from the ratchet pressing mechanism of above-mentioned restriction ratchet rear pressurization.

2. device for supplying electronic element as claimed in claim 1 is characterized in that,

Above-mentioned conveying mechanism is from the conveyance drive force of above-mentioned electronic element installation device input said conveyer belt,

Above-mentioned ratchet pressing mechanism carries out the compression motion of above-mentioned restriction ratchet by importing above-mentioned conveyance drive force.

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