CN100502620C

CN100502620C - Resin distributing device

Info

Publication number: CN100502620C
Application number: CNB2004101031431A
Authority: CN
Inventors: 洪承珉; 李秀镇
Original assignee: Protec Co Ltd Korea
Current assignee: PROTEC; Protec Co Ltd Korea
Priority date: 2004-03-19
Filing date: 2004-12-31
Publication date: 2009-06-17
Anticipated expiration: 2024-12-31
Also published as: TW200536696A; KR100533210B1; TWI250927B; CN1671271A; KR20050093935A

Abstract

Providing a resin dispensing device with a simple structure and to be adapted in various fields of applications, which allows easy assembly and integration with maintenance, replacement and component cleaning equipment, reduction of replacement cost, applications not related to resin and easy inspection of nozzle state, thereby optimizing reliability of the device. A resin dispensing device consisting of: a robotic assembly with conventional driving heads capable of moving along X-Y-Z axes; resin storage injection heads mounted to the driving heads of the robotic assembly so as to construct a resin dispensing device of configuration allowing dispensing of resin from the injection heads, characterized in: a top and a bottom adjustment means, the top and bottom adjustment means sustaining rotating forces of servo motor of a driving source provided at a side of the machine bed of the driving heads, converting the rotating forces into linear ascending and descending motions via camming effects, and causing variations in dispensing speed and route of the contact poles.

Description

Resin distributing device

Technical field

The present invention relates to a kind of resin distributing device that is used to distribute resins such as epoxy resin, resins such as this epoxy resin are used for the parts of chip or IC and so on are fixed to household electrical appliance, on the employed printed circuit board (PCB) of products such as communication equipment (PCB), more particularly, the present invention relates to a kind of such resin distributing device: simple in structure and can multiple application be arranged according to the field that is suitable for, the maintenance and repair that can follow equipment to use, washing components is easy to decomposition and combination, save the maintenance and repair expense, with the irrelevant use of resin kind, and the inspection that is easy to head (head) state, and greatly improved the reliability of installing.

Background technology

In general; in order to distribute surface mounting assembly (chip, IC) is installed to viscosity solution (resin) of epoxy resin of using on the printed circuit board (PCB) and so on or the influence that the protection semiconductor element is avoided external environment condition; the coating, the sealing chip around and flip-chip (flip chip) is not full of in the operation of (underfill), resin distributing device (dispenser) is based on the commercialization of diversified technology.

This resinoid distributor, along with the high speed of recent industrial technology, as 65000 chips/hour more than surface mounting apparatus, developing high-speed chip plug-in mounting technology and making its commercialization.In order to adapt to this high-speed chip plug-in mounting technology requirement, also require at a high speed and high accuracy.

Particularly, semiconductor chip surface is installed employed resin distributing device, must ensure correctness and the rapid property that solution distributes, if can not correctly spray based on the quantitative resin that distributes, just can not reduce defect rate, require the long-time solution that uses to carry out repeatedly the ejection action of high speed and the high speed perseveration that in minimum permissible error scope, distributes with same amount or equal area.

In order to satisfy this requirement, recently, for improving the spouting velocity of solution (resin), disclosing increases pump to the expulsion pressure of mode or the mode that vacuumizes.

The invention belongs to the former mode is the resin distributing device that pump is given mode.

In such resin distributing device, the sendout of employed resin (bonding agent) does not need the changes such as size according to parts, but must carry out an amount of distribution.

In other words, if a small amount of, just can not give full play to the fixing function of parts, if excessive, bonding agent will flow in the solder, counteracts for solder, perhaps also is to can not get the reason that good electrical connects.

In addition, bonding agent Yin Wendu and change viscosity, the result causes sendout to change.Thereby, under the situation of Control Allocation amount correctly, temperature that just must the control bonding agent.

Recent resin distributing device has the temperature controlled function, and, also can be aspect sendout according to the size of parts, alternative distributing nozzle uses, and is developing the high-precision distributor that has the visual recognition function.

As the distribution method of this bonding agent, mustn't be distributed in bottom one side of parts, usually, use the method for coming installing component with a plurality of point shape adhesive-applyings.In this case, because each point is smaller, even sendout has deviation, its influence is also very little.

But, under the bigger situation of parts, count and meet the demands by increasing this.

Be not full of under the situation of operation all the more so.

In addition, though the imposing a condition of resin distributing device of using according to viscosity, thixotropy (vivid maintenance), flow behavior, temperature fail safe, the adhesive characteristic of the bonding agent (resin) that is suitable for can change, but, the most important thing is that dispense pressure, distribution time (dispensing rate) can bring maximum influence.

But, in the past aspect this resinoid distribution, exist following shortcoming: the interchangeability that equipment can not be provided according to the characteristic of resin (bonding agent), the realization of equipment is very complicated, according to the resin of using to the decomposition of washing components, assembling relatively difficulty, get the complexity that the stroke of bar (dot rod) adjusts and the realization of front end pooling feature ready, all be very complicated, but also exist the shortcoming of the replacement operation complexity of suitable pin.

That is to say, recently, in view of the reality of the high speed plug-in mounting commercialization of chip, need to deal with energetically the distributor of the high speed of this reality, but, the shortcoming that in the past distributor exists is: structure is very complicated, and equipment weight is big, because huge and frequently break down during using, and brought the defective that requires maintenance capacity big thus, and decomposition, the assembling of using the back to equip are very difficult, and it is also very difficult that washing components carries out the detached job of laundry operation.

Summary of the invention

Therefore, the objective of the invention is to, a kind of resin distributing device is provided, it can be corresponding to the chip plug-in mounting of the high speed of commercialization at present, the distribution of quantitative resin (bonding agent) at a high speed can be realized, higher surface mounting technology can be applicable to, by the replacement of simple components, can realize dispensing rate according to the resin properties that is suitable for, can a general device.

Another object of the present invention is to, a kind of resin distributing device is provided, it can adjust simply and use by the simple replacement of getting bar and pin ready according to the resin kind that surface mounting technology was suitable for, and has operation easily, the defect rate minimization of product.

A further object of the present invention is, a kind of resin distributing device is provided, and it provides the simple decomposition of washing components and washing easily in the process of equipment moving, makes the convenience maximization of equipment utilization.

The present invention also aims to, providing a kind of can cushion to be applied to the impact on the front end and to reduce and shake and noise in get the high speed lifting action of bar ready, makes the resin distributing device of the reliability maximization of equipment thus.

In order to achieve the above object, resin distributing device of the present invention, comprise: the robot cell that the common driving head that can move along X-Y-Z axle is installed, on above-mentioned robot cell's driving head, be fixed with resin storage syringe, from this syringe distribution of resin, this resin distributing device also comprises: adjusting device up and down, its acceptance is installed in the revolving force of servomotor of the drive source of above-mentioned driving head main body one side, convert the linear elevating movement to by camming movement, change dispensing rate and the stroke of getting bar ready.

Above-mentioned adjusting device up and down comprises: cam follower, spinning movement by means of druum cam, lifting vertically also produces certain stroke, above-mentioned druum cam can combine with driven pulley by bolt with freely loading and unloading, and this driven pulley accepts to be installed in the servomotor revolving force of driving head main body one side; The compression spring between lower springs sheet that is installed in above-mentioned cam follower top and upper springs sheet, provides elastic force downwards, and above-mentioned upper springs sheet is installed in the bottom of the supporting bracket that combines with aforementioned body top; The spline assembly has the splined shaft that the central axis hole of above-mentioned supporting bracket is passed in the bottom, is installed in the top of above-mentioned cam follower, has the urceolus by the bolt combination; Connecting rod, connect the central axis hole of above-mentioned driven pulley, druum cam, cam follower, splined shaft, engage with the interior step portion of the axis of centres of above-mentioned cam follower, its top is outstanding, be fixed on the top of above-mentioned splined shaft with nut, can be installed with up and down with above-mentioned cam follower and splined shaft.

Above-mentioned connecting rod is connected with the bar of getting ready of getting spray nozzle device ready that is arranged on its underpart, the elevating movement that above-mentioned cam follower produces by means of the camming movement by above-mentioned druum cam, make and get the resin that bar hits filling ready, and by the pin distribution of resin, by means of the positive and negative rotation (servomotor control) of above-mentioned druum cam, allow and get the valve function that bar can be brought into play cut-out or open resin flow ready.

Above-mentioned adjusting device up and down, adjustment is arranged on the elastic force of the above-mentioned compression spring on top, adjusts the rising or falling speed of getting bar ready and hits intensity, whereby, can effectively distribute according to the resin that uses.

What is connected with above-mentioned up and down adjusting device gets bar ready, and its connecting portion is provided with attenuating device, by adjusting the above-mentioned stroke of getting bar ready and because of strike is applied to the strike intensity of front end, can making vibrations and noise minimization.

More than the present invention of Gou Chenging, can eliminate the defective of the trickle adjustment that can not realize getting ready punch advance in the air-cylinder type structure in the past, can enlarge the scope of application, according to the resin kind that is suitable for, by replacing a few components, just can obtain corresponding versatility with a device, and by simple structure, the convenience that the equipment of simple decomposition, assembling and the washing of washing components of just obtaining uses, certainly also can relax the impact of the end that the strike of getting bar ready causes, can carry out the adjustment of stroke, realize attenuation function, thereby, have the effect of ensuring equipment reliability.

Description of drawings

Fig. 1 is a stereogram of the present invention.

Fig. 2 is an exploded perspective view of the present invention.

Fig. 3 is the local amplification stereogram of Fig. 2.

Fig. 4 is the local amplification stereogram of Fig. 2.

Fig. 5 is the normal cross sectional drawing of expression assembled state of the present invention.

Fig. 6 is the cross-sectional side view of expression assembled state of the present invention.

Fig. 7 is the amplification profile diagram of the F portion of Fig. 5.

Fig. 8 is the amplification profile diagram of the G portion of Fig. 5.

Fig. 9 is the amplification profile diagram of the H portion of Fig. 5.

Figure 10 a is the pie graph that the druum cam of inscape of the present invention is divided into two-part object lesson.

Figure 10 b is the pie graph that the druum cam of inscape of the present invention is divided into the object lesson of three parts.

Figure 10 c is the pie graph that the druum cam of inscape of the present invention is divided into tetrameric object lesson.

Figure 11 a expresses the action of druum cam of the present invention, is the key diagram of giving function action according to the pump that distributes.

Figure 11 b shows the action of druum cam of the present invention, is the key diagram according to the action of valve function.

Symbol description

The 100th, main body, the 110th, servomotor, the 200th, adjusting device up and down, the 210th, druum cam, the 211st, cam projection, the 212nd, inclined plane, the 230th, cam follower, the 231st, rolling bearing, the 240th, supporting bracket, the 250th, compression spring, the 260th, spline assembly, the 270th, connecting rod, the 300th, get needle device ready, the 310th, housing, the 320th, get bar ready, the 330th, bellows, the 350th, guide block, the 360th, pin lid.

Embodiment

Below, based on accompanying drawing, describe embodiments of the invention in detail.

As Fig. 1～shown in Figure 6, according to resin distributing device of the present invention, be installed on the common robot cell, comprising: the driving head main body 100 that can move along X-Y-Z axle; Releasably be installed on the aforementioned body 100, resin storage is with syringe (syringe) 140; Be installed in the servomotor 110 of aforementioned body 100 1 sides; By the revolving force of the above-mentioned servomotor of Timing Belt 130 acceptance, convert the adjusting device up and down 200 of linear elevating movement to rotatablely moving; And have be connected with above-mentioned up and down adjusting device get bar 320 ready get nozzle (dotting nozzle) 300 ready.

Above-mentioned driving head main body 100 is equipped with Support bracket 102 in a side of the outstanding brace table 101 of pars intermedia, and above-mentioned servomotor 110 is installed on this Support bracket 102 by bolt.

The above-mentioned formation of adjusting device 200 up and down is that a plurality of bearings 103 that are incorporated on the above-mentioned brace table 101 by bearing bracket 107 combine with driven pulley 220; This driven pulley 220 is connected with the driving wheel 120 of above-mentioned servomotor 110 by Timing Belt 130; Top at above-mentioned driven pulley 220 can be combined with druum cam 210 by bolt with freely loading and unloading; On the top of above-mentioned druum cam 210, the cam follower 230 that rotatablely moves and vertically act on certain stroke by this druum cam 210 is installed; Top at above-mentioned cam follower 230, lower springs sheet (spring plate) 246 is installed, top in aforementioned body 100, on the projected direction of above-mentioned brace table 101, by bolt supporting bracket 240 is installed, in the bottom of this supporting bracket 240 upper springs sheet 245 is installed, between upper springs sheet 245 and lower springs sheet 246, is provided with the compression of elastic force spring 250 is provided downwards; The central axis hole that above-mentioned supporting bracket 240 is passed in the bottom of splined shaft 261 is installed in the top of above-mentioned cam follower 230, and urceolus 262 is installed in above-mentioned splined shaft 261 by bolt, constitutes spline assembly 260; Connecting rod (connecting rod) 270 passes the central axis hole of above-mentioned driven pulley 220, druum cam 210, cam follower 230, splined shaft 261, combine with the stage portion 232 in the central axis hole that is formed at above-mentioned cam follower 230, and it is outstanding to top, the threaded portion on above-mentioned splined shaft 261 tops is connected with nut 271, whereby, can make above-mentioned connecting rod 270 and above-mentioned cam follower 230, splined shaft 261 1 liftings.

Above-mentioned supporting bracket 240 usefulness bolts are connected with the support bar 108 of both sides, the place ahead, support bar 108 connects thirty years of age by bolt and is located on the intermediate supports platform 101, whereby, above-mentioned supporting bracket 240 nothings are installed on the aforementioned body 100 with moving about, and firmly combine to overcome the elastic force of above-mentioned compression spring 250.

Above-mentioned cam follower 230, a side at an upper portion thereof, along continuous straight runs is formed with in the mode that connects central axis hole adjusts screwed hole 233.Above-mentioned cam follower 230 by adjusting the bottom that screw 234 is combined in above-mentioned splined shaft 261 securely, whereby, can prevent its rotation, thereby can only do elevating movement.

Above-mentioned druum cam 210 is formed with a plurality of cam projection 211 in a circumferential direction at certain intervals as Fig. 3 and shown in Figure 10, and these cam projection 211 have acclivitous inclined plane 212 on a circumferencial direction.Here, the scope that above-mentioned cam projection 211 is preferred 2～4, still, also can be more than the scope at this.

Above-mentioned cam follower 230 is established (Shaft Let at both sides along continuous straight runs axle) rolling bearing 231 is arranged, this rolling bearing 231 can slide on the inclined plane 212 of above-mentioned cam projection 211.

Above-mentioned druum cam 210 is as indicated above, by means of driven driven pulley 220 is rotated simultaneously along with the rotation of above-mentioned servomotor 110.

Therefore, the cam follower 230 that contacts with the cam projection 211 of above-mentioned druum cam 210, along with its rolling bearing 231 slides on above-mentioned inclined plane 212, and vertically rise, the result, above-mentioned cam follower 230 rises while the elastic force that overcomes lift-launch compression spring 250 at an upper portion thereof, so, under the state of the rotation of the splined shaft 261 that prevents above-mentioned spline assembly 260, tractive on one side makes progress above-mentioned connecting rod 270, make its rising on one side, break away from the peak on above-mentioned inclined plane 212 and when descending at above-mentioned rolling bearing 231, by means of the elastic force of above-mentioned compression spring 250, above-mentioned connecting rod 270 is carried out and above-mentioned splined shaft 261 repeatedly, the a series of linear lifting action that cam follower 230 descends together.

In addition, when the number of the cam projection 211 of above-mentioned druum cam 210 increased, the rising or falling speed of above-mentioned connecting rod 270 increased pro rata.

For example, rotating speed at above-mentioned servomotor 110 is under the situation of 3000rpm, when the number of above-mentioned cam projection 211 was increased to 2,3,4, speed was increased to 3000 * 2=6000cycle/min, 3000 * 3=9000cycle/min, 3000 * 4=12000cycle/min.

Here, between above-mentioned supporting bracket 240 and upper springs sheet 245, the threaded portion 241 of elastic force being adjusted nut 280 and above-mentioned supporting bracket 240 screws, and by means of the lifting that threads turn produced, adjusts the elastic force of above-mentioned compression spring 250.

In the both sides of above-mentioned elastic force adjustment nut 280, screwed hole 281 along continuous straight runs connect, and are connected with to adjust screw 282 in this screwed hole 281, and are fastening with screw after the lift adjustment, can keep stationary state reliably.

The above-mentioned spray nozzle device 300 of getting ready comprises housing 310, and this housing 310 is provided with in the face of the bottom of above-mentioned adjusting device 200 up and down, can be inserted on the lower support platform 104 with freely loading and unloading, and this lower support platform 104 has the inserting groove 105 that central portion opens wide.

In other words, above-mentioned housing 310, the airtight hole 311 of keeping that its top forms is communicated with the threaded bosses 312 formed filler openings of giving prominence in the bottom 313, and the resin flow hand-hole 314 that is connected with the connecting line 160 of said syringe 140 is communicated with in the horizontal direction.

Be provided with retractility bellows gas-tight ring 330 on the top of above-mentioned housing 310, this gas-tight ring 330 surrounds the above-mentioned central portion of getting bar 320 ready that can be connected on the above-mentioned connecting rod 270 with freely loading and unloading, its underpart 332 and this central portion following side are provided with baffle ring 333 between the formed threaded portion 322, and it is fixing with hold-down nut 334, be housed in above-mentioned airtight keeping in the hole 311, its top 331 closely is fixed on the above-mentioned airtight stage portion 315 of keeping hole 311 by case lid 340, whereby, cut off resin 150 outflow upward that flows into and fill.

Guide block (rod guide) 350 inserts the filler opening 313 of above-mentioned threaded bosses 312 from the bottom with airtight conditions, and on above-mentioned guide block 350, the resin pilot hole 351 that allows the above-mentioned leading section of getting bar 320 ready insert is communicated with path resin squit hole 352.

Be provided with pin lid 360 at the downside of above-mentioned guide block 350, this pin lid 360 is through with pin hole 361 in central authorities, and screws with above-mentioned threaded bosses 312, and above-mentioned guide block 350 is closely fixed.

Above-mentioned housing 310 externally both sides is formed with the adjustment hole of facing mutually 316, and housing 310 can be installed with by adjusting screw 106 with freely loading and unloading, adjusts screw 106 and screws in the adjustment screwed hole that forms facing mutually with above-mentioned lower support platform 104.

Above-mentioned connecting rod 270 interconnects by means of attenuating device 290 with the above-mentioned bar 320 of getting ready.

Above-mentioned attenuating device 290 comprises: expansion 272, form with the lower end of above-mentioned connecting rod 270, and the bottom is formed with decay hole 273, and the outside is formed with the threaded portion; Circular plate type buffer unit 291 inserts in the above-mentioned decay hole 273; Expansion 321 forms with the above-mentioned upper end of getting bar 320 ready; And being connected and fixed nut 292, its central authorities allow the above-mentioned bar 320 of getting ready pass, and screw with above-mentioned threaded portion, thereby prevent that by above-mentioned expansion 321 the above-mentioned bar 320 of getting ready breaks away from downwards.

This attenuating device 290 is according to the height that inserts the above-mentioned circular plate type buffer unit 291 in the above-mentioned decay hole 273, adjustment is made the above-mentioned stroke of getting bar 320 ready of lifting action with above-mentioned connecting rod 270, simultaneously, adjust the strike intensity of the valve seat 353 of above-mentioned guide block 350.

As above-mentioned circular plate type buffer unit 291, preferably use the polyurethane rubber that elastic strength is good, have resistance to ag(e)ing, oil resistance, mar proof.

In the present invention, the cam follower 230 of above-mentioned up and down adjusting device 200 descend usual the time state under, the valve seat 353 that the above-mentioned end of getting bar 320 ready of getting needle device 300 ready forms with respect to the lower end at the resin pilot hole 351 of above-mentioned guide block 350, downward elastic force by means of above-mentioned compression spring 250, close resin squit hole 352, prevent to be filled into flowing of resin 150 in the filler opening 313 of above-mentioned housing 310.

At this moment, the rolling bearing 231 of above-mentioned cam follower 230 is shown in Figure 11 a, be in from the minimum point on the inclined plane 212 of the cam projection 211 of above-mentioned druum cam 210 and only leave the certain height state of (Ha) at interval, thereby, the elastic force of above-mentioned compression spring 250 still is applied to above-mentioned getting ready on the bar 320, implements effectively to cut off.

In order to adjust the above-mentioned stroke of getting bar 320 ready, as indicated above, under the situation that stroke shortens, can use circular plate type buffer unit attenuating device 290, highly bigger, under the elongated situation of stroke, can use highly less circular plate type buffer unit, wherein, described attenuating device 290 is connected with above-mentioned connecting rod 270.

Based on the above-mentioned stroke of getting bar 320 ready of this attenuating device 290, can be according to the characteristic variations that is applicable to the resin 150 that distributes operation, the versatility of ensuring equipment and convenience.

According to the present invention, by being rotated in the forward of above-mentioned servomotor 110, the rolling bearing 231 of above-mentioned cam follower 230 slides on one side in one direction along the inclined plane 212 of above-mentioned cam projection 211, rise on one side, descend by above-mentioned compression spring 250, with the above-mentioned bar 320 of getting ready the resin 150 in the resin pilot hole 351 that flows into above-mentioned guide block 320 is extruded, and by above-mentioned resin squit hole 352 ejections, whereby, do out of tradely except the distribution of giving function according to pump, also can realize the function of open/closed valve.

In other words, above-mentioned druum cam 210 is under situation about controlling by the positive and negative rotary oscillation of above-mentioned servomotor 110, the rolling bearing 231 that makes above-mentioned cam follower 230 slides in the interval of peak repeatedly in the minimum point from the inclined plane 212 of above-mentioned cam projection 211, whereby, make above-mentioned get that bar 320 is close to respect to the valve seat 353 of the resin pilot hole 351 of above-mentioned guide block 350 ready and separating process (opening/closing) in, open and close above-mentioned resin squit hole 352.

Valve function of the present invention like this, the resin 150 that can be used for having low viscosity characteristics.In addition, be provided with compressed air supply passageway (not shown), spraying compressed air on one side, Yi Bian when applying flexibly, can realize the operation that makes solder flux atomize and distribute as the open/closed valve of solder flux in a side of above-mentioned pin lid 366.

The present invention whereby, can adjust stroke with high accuracy by the rotation of the above-mentioned druum cam 210 of servomotor 110 controls.Particularly, the control of the anglec of rotation by above-mentioned druum cam 210 can be adjusted between the sliding area of rolling bearing 231 of above-mentioned cam follower 230, and then can be adjusted to stroke arbitrarily, so, applicable to various uses, can realize optimal conditions.

Particularly, because the bar type of commercialization has now used cylinder, therefore, speed regulation is restricted, the suffered shock effect in end (getting bar, guide block ready) is big, cause existing the frequent effect of parts, low-quality defective, still, the speed regulation of the present invention and the anglec of rotation are regulated and are used free servomotor drive source, be applicable to the cam drive mode, can freely carry out speed regulation, the impact by attenuating device buffering end makes the parts minimization of loss.

Claims

1, a kind of resin distributing device comprises: be equipped with and can be fixed with the resin storage and use syringe on described robot cell's driving head along the robot cell of X-Y-driving head that the Z axle moves, from this syringe distribution of resin, it is characterized in that, also comprise:

Be installed in the servomotor of the drive source of described driving head main body one side;

Adjusting device is up and down accepted the revolving force of described servomotor, converts the linear elevating movement to by camming movement, changes dispensing rate and stroke; And

Get needle device ready, comprise the bar of getting ready that is connected with described adjusting device up and down, a side is connected with described syringe, can be installed on the described driving head main body with freely loading and unloading.

According to the resin distributing device of claim 1 record, it is characterized in that 2, described adjusting device up and down comprises:

Druum cam can freely load and unload ground by bolt and combine with the driven pulley that transmits described servomotor revolving force;

Cam follower, by means of the spinning movement of described druum cam, lifting vertically also produces stroke;

The compression spring between lower springs sheet that is installed in described cam follower top and upper springs sheet, provides elastic force downwards, and described upper springs sheet is installed in the bottom of the supporting bracket that combines with described driving head main body top;

The spline assembly has the splined shaft that the central axis hole of described supporting bracket is passed in the bottom, is installed in the top of described cam follower, has the urceolus by the bolt combination;

Connecting rod, connect the central axis hole of described driven pulley, druum cam, cam follower, splined shaft, cooperate with the interior step portion of the axis of centres of described cam follower, the top of described connecting rod is outstanding, be fixed on the top of described splined shaft with nut, can be installed with up and down with described cam follower and splined shaft.

3, the resin distributing device of putting down in writing according to claim 2, it is characterized in that, top at described druum cam, projection is provided with acclivitous a plurality of cam projection on a circumferencial direction at certain intervals in a circumferential direction, described cam follower is provided with rolling bearing at both sides along continuous straight runs axle, and this rolling bearing can slide on the inclined plane of described cam projection.

4, according to the resin distributing device of claim 3 record, it is characterized in that the cam projection of described druum cam is provided with 2～4.

5, the resin distributing device of putting down in writing according to claim 2, it is characterized in that between described supporting bracket and described upper springs sheet, the threaded portion of elastic force being adjusted nut and described supporting bracket screws, by means of the rotation and lifting of described elastic force adjustment nut, adjust the downward elastic force of described compression spring.

6, according to the resin distributing device of claim 2 record, it is characterized in that described connecting rod and the described bar of getting ready interconnect by attenuating device.

7, according to the resin distributing device of claim 6 record, it is characterized in that described attenuating device comprises:

The first expansion head forms with the lower end of described connecting rod, is formed with the decay hole in the bottom, and the outside is formed with the threaded portion;

Insert the circular plate type buffer unit in the described decay hole;

With the described upper end of getting bar ready form second the expansion head; And

Be connected and fixed nut, its central authorities allow the described bar of getting ready pass, and screw with described threaded portion, prevent that by the described second expansion head the described bar of getting ready breaks away from downwards.

8, according to the resin distributing device of claim 7 record, it is characterized in that described attenuating device is adjusted the described stroke of getting bar ready according to the height of described circular plate type buffer unit.

9, the resin distributing device of putting down in writing according to Claim 8 is characterized in that described circular plate type buffer unit is made of polyurethane rubber.

10, according to the resin distributing device of claim 3 record, it is characterized in that the described needle device of getting ready comprises:

Housing, the airtight hole of keeping that its top forms is communicated with the formed filler opening of giving prominence in the bottom of threaded bosses, and the resin flow hand-hole that is connected with the connecting line of described syringe is communicated with in the horizontal direction, and this housing can be installed on the described main body with freely loading and unloading;

Retractility bellows gas-tight ring, this retractility bellows gas-tight ring surrounds the described central portion of getting bar ready, be provided with baffle ring between its underpart and this formed threaded portion of central portion downside, and fix with nut, be housed in described airtight keeping in the hole, its top closely is fixed on the described airtight stage portion of keeping the hole by case lid, whereby, cuts off resin outflow upward;

Guide block inserts the filler opening of described threaded bosses with airtight conditions from the bottom, and the resin pilot hole that allows the described leading section of getting bar ready insert is communicated with path resin squit hole; And

The pin lid is through with pin hole in central authorities, screws with described threaded bosses, makes described guide block closely fixing.

11, the resin distributing device of putting down in writing according to claim 10, it is characterized in that, the rolling bearing of described cam follower, with the isolated state of minimum point on the inclined plane of the cam projection of described druum cam under, the described front end of getting bar ready abuts against on the valve seat of resin pilot hole of described guide block, closes described resin squit hole.

12, the resin distributing device of putting down in writing according to claim 10, it is characterized in that, described druum cam is rotated in the forward by described servomotor, the rolling bearing of described cam follower is slided on one side in one direction along the inclined plane of described cam projection, vertically do on one side elevating movement, get bar resin extruded in the resin pilot hole that flows into described guide block ready by described, and by described resin squit hole ejection, whereby, carry out giving the distribution of function according to pump.

13, according to claim 3 or 10 resin distributing devices of putting down in writing, it is characterized in that, described druum cam is by the positive and negative rotation of described servomotor, the rolling bearing of described cam follower is slided on one side in one direction along the inclined plane of described cam projection, vertically do elevating movement on one side, by the described bar of getting ready, open and close the valve seat of the resin pilot hole of described guide block, carry out the valve function of opening/closing.