KR200315454Y1 - A dispenser head able to control a rotation and up-down of a poston in a high-speed, fixed-amount, precise discharge type - Google Patents

Abstract

The present invention relates to a dispenser head for dispensing an adhesive for fixing a component such as a chip or an IC on a printed circuit board (PCB) by a dotting method.

The present invention penetrates through the cylinder chamber 210 of the head body 200 to the third stage of the upper chamber 201, the central chamber 202, the lower chamber 203, the air passage to the upper portion of the lower chamber 203 290, the up-down rotation means 300 is raised position to the compression spring 360, which is elastically installed between the central housing 202 and the bearing housing 371 is assembled and fixed to the upper chamber 201 Is installed in the piston, the piston 320 is installed in the proximal position of the lower side of the air passage 290 through the upper portion of the lower chamber 203, the piston by the on and off operation of the valve means (800) The lowering and raising of the up and down rotation means 300 and the discharge amount adjusting means 600 installed therein and the dotting nozzle means 400 assembled therewith are made by the lowering of the lowering and the compression spring 360. However, the discharge amount adjusting means 600 is a bellows airtight ring 6 and the airtightness of the dotting nozzle means 400 according to the lifting operation The dispenser head made by 70) prevents damage to the PCB substrate and provides easy separation of the dotting piston.

Description

High-capacity metering dispenser head for precise control of up-down and rotation {A DISPENSER HEAD ABLE TO CONTROL A ROTATION AND UP-DOWN OF A POSTON IN A HIGH-SPEED, FIXED-AMOUNT, PRECISE DISCHARGE TYPE}

The present invention dispenses adhesives for fixing components such as chips or ICs on printed circuit boards (PCB) used in home appliances such as TVs, VTRs, telephones, modems, and communication devices. As related to the dispenser head, more specifically, the function of the patent application No. 2001-71162, which is the applicant's prior application technology, is minimized to minimize damage to the PCB due to the high-speed dotting work and to prevent mechanical damage by maximizing airtightness and ease of cleaning operation. The present invention relates to a high-speed metering dispenser head capable of precise control of up-down and rotation, which maximizes the reliability of a device by providing a guarantee of convenience of use and a lifetime by maximization.

In general, the dispensing process is to receive the surface mount component (chip, IC) from the feeder (Feeder) to transfer and mount the surface mount component to the mounting position on the PCB by the surface mounter (SMD Mounter) The process of apply | coating an adhesive agent like epoxy on this located PCB is said.

Since the surface mounter has recently been developed and commercialized with a high speed chip mounter of 65,000 Chip / H or more, high speed dispensing equipment is required.

In addition, high-speed dispensing operations at the same time to ensure accuracy, rapidity, quantitative dispensing of the solution and the correct dispensing in the right place automatically to meet the high-speed chip mounter as described above.

The key technology to accommodate this requirement is determined by the dispenser head.

However, since the conventional dispensing equipment has to control the independent heads separately, the weight and volume of the entire head are excessively increased due to the mechanical mechanism and the large number of components, and the moving inertia due to dispensing is increased. There was a drawback that there was no choice but to reduce the speed and increase the motor capacity.

That is, in the conventional dispenser head, the Z-axis (up and down) movement according to the dispensing of epoxy (EP) is the same as the independent dispenser head due to the repetition of the robot unit's lifting / lowering operation. For example, when 100 dispensing is performed, the Z axis of the robot unit must be reciprocated 100 times.

In order to change the dispensing position, that is, to change the dotting position, when the dispenser head needs to be rotated, only the entire rotation of the robot unit is possible.

Dispensing is performed at the lowering position of the dispenser head, and since the fluidity of the epoxy is directed toward the lower side of the dispensing nozzle, it is necessary to wait until the end of the fluidity of the epoxy to provide stable dotting, which requires a lot of dotting time.

At the point when the fluidity of the epoxy was not finished, a tail, such as a tail, was severely shown when the upward movement for the next dotting proceeded, and it was difficult to discharge the fixed flow rate.

Therefore, the present applicant has filed a patent application No. 2001-71162 with a dispenser head which solves the disadvantages of the conventional dispenser head as described above and provides a dotting operation of epoxy by up / down and rotation in a single body.

Applicant's prior application of the present application is that the high speed dotting operation is provided in a single body, and

Advantages of excellent workability by positioning by rotating the nozzle according to the dotting position,

Convenience and convenience to selectively mount the required quantity by adopting unique manifold structure,

The advantages of providing prompt repair and replacement during use,

Epoxy (solution) does not have a tail even at high speed dotting work, so it is possible to precisely control the safety and minimize the defect rate, thus providing various advantages such as the precision of the work by quantitative discharging of the solution.

However, the applicant's source technology is the dotting operation is made by the spring which is supported on the inside of the up and down rotation means by the off operation of the valve means according to the dotting operation in the state where the air pressure is provided inside by the on operation of the valve means, and the dotting operation is made by the elastic force. As it is difficult to precisely control the spring elastic force has a disadvantage that the PCB is damaged by the spring force of the spring,

The state before the dotting operation, that is, the up state of the up-down rotation means means that the valve means must be kept on at all times, which shortens the life due to the heat generation of the solenoid valve, and this heat is transmitted to the entire head to supply the solution. It was delivered to (epoxy) and had the disadvantage of causing product defects by changing its properties.

In addition, the dotting piston of the discharge amount adjusting means for raising and lowering the inside of the up-down rotation means is directly and repeatedly with the O-ring which provides the upper airtightness during the lifting and lowering operation for discharging the solution filled and transferred to the inside of the dotting nozzle means. The wear of the O-ring easily occurs due to phosphorus friction, and the airtightness falls in a short time.As a result, the solution on the surface of the dotting piston leaks and hardens due to the wear and damage of the O-ring during prolonged use. There was a disadvantage.

In particular, the applicant's prior application technology is provided with the dotting piston of the discharge amount adjusting means is not easy to wash by the separate separation during use, so that the precise discharge of the solution falls with longer use period, and according to the solution There was a disadvantage that the replacement of the dotting piston was difficult.

The present invention has been researched and developed to effectively solve the disadvantages pointed out in the applicant's prior application as described above,

The object of the present invention is to maintain the rising state by the spring force of the inner spring of the up-down rotation means, when the up-down rotation means is lowered over the spring force of the inner spring at the time of supply of compressed air by the on-operation of the valve means It is to provide a high-speed quantitative dispenser head that can precisely control up and down and rotation to maximize the reliability of the device by preventing the PCB damage caused by the spring force.

It is an object of the present invention to provide a high-speed quantitative discharge dispenser head capable of precise control of up and down and rotation, which can be precisely controlled by the control of the valve means and the lowering operation of the up and down rotation means is minimized. have.

The object of the present invention is to provide a high-speed quantitative discharge dispenser head capable of precise control of up and down and rotation that prevents the deterioration of the solution and maximizes the life by minimizing the heat generation as the valve means is operated only during the dispensing operation. have.

The purpose of the present invention is to provide the top secret of the solution filled inside the dotting nozzle means by the bellows mechanism during the ascending and descending operation of the dotting piston constituting the discharge amount adjusting means. An object of the present invention is to provide a high-capacity metering dispenser head capable of precise control of rotation.

The purpose of the present invention is to provide a separate separation of the dotting piston constituting the discharge amount measuring means can be replaced and used according to the solution characteristics and discharge amount as well as ease of cleaning, high-speed quantitative discharge capable of precise control of up-down and rotation to maximize compatibility It is to provide a type dispenser head.

An object of the present invention is to provide a high-speed quantitative discharge dispenser head capable of precise control of up-down and rotation provided with quantitative discharge by changing the structure of the guide block of the dotting nozzle means.

An object of the present invention is to provide a high-speed quantitative discharge dispenser head capable of precise control of the up and down and rotation to maximize the function of the device by precisely controlling the amount of rotation by improving the function of the rotational power means.

1 is a front configuration diagram of the present invention,

2 is a side cross-sectional view of the present invention,

3 to 5 is an enlarged view of a part excerpt of FIG.

6 is an exploded cross-sectional view of the head body, the module plate, the valve means of the present invention,

7 is an enlarged view of a part of the extract of FIG.

Figure 8 is an excerpt configuration cross-sectional view of the up-down rotation means of the present invention,

9 is an exploded perspective view of the anti-rotation locker of the present invention,

10 is an exploded cross-sectional view of the dotting nozzle means of the present invention,

11 is a plan view of the guide block of the dotting nozzle means of the present invention,

12 is a cross-sectional view taken along the line A-A of FIG.

FIG. 13 is an exploded perspective view of FIG. 11;

14 is an enlarged cross-sectional view of a part of the epoxy transport means of the present invention,

15 is a cross-sectional view of the excerpt configuration of the discharge amount adjusting means of the present invention;

16 is an enlarged view of an excerpt “F” of FIG. 15;

17 is an extract of a part of the rotational power control means of the present invention,

18 is a plan view of FIG. 17;

Figure 19 is a perspective view of a part of the excerpt of Figure 17 is a perspective view of the tension adjustment assembly.

** Explanation of symbols for main parts of drawings **

100: module plate 200: head body

300: up and down rotation means 400: dotting nozzle means

500: epoxy conveying means 600: discharge amount adjusting means

700: rotational power control means 800: valve means

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front configuration diagram of the present invention, Figure 2 is a side cross-sectional configuration of the assembled state, Figures 3 to 5 is an enlarged view of the excerpt for each part of Figure 2, referring to the dispenser head of the present invention,

A module plate 100 mounted on a general robot unit and capable of moving in an X-Y-axis,

A head body 200 mounted as a unit on the module plate,

In this head body, up, down and rotatable means 300 capable of high and high motion and rotation,

Dotting nozzle means 400 is mounted to the lower portion of the up-down rotation means for dispensing epoxy (E.P),

Epoxy transfer means 500 for transferring the epoxy (E.P) filled in the syringe (S.L) to the dotting nozzle means 400, and

Discharge amount adjusting means 600 for quantitatively discharging the epoxy (E.P) transferred to the dotting nozzle means 400 and finely adjusting the discharge amount;

Rotational power control means 700 for transmitting and controlling the rotational power of the up-down rotation means 300,

And a valve means 800 for controlling the power pneumatic pressure of the shanghai dong of the up-down rotation means 300 in connection with the module plate 100.

As shown in FIGS. 2, 6, and 7, the module plate 100 has an air discharge port 120 and an air exhaust port 130 at upper and lower parts thereof in an assembling quantity of the head body 200. Correspondingly provided respectively.

The head body 200 is composed of three units in the present invention, the air discharge port 120, the air exhaust port 130 is formed in each of the three places where the head body is closely assembled, such a head body 200 The increase in the number of assemblies of is determined by the increase in the components of the module plate 100.

Each of the air discharge port 120 is communicated with the front port and the rear port is in communication with the protruding annulus 121 protruding on the inner circumference, the air supply path 140 is penetrated in the horizontal longitudinal direction from one side in the orthogonal direction It communicates with the rear port.

At this time, the rear port of the air discharge port 120 is configured with a shut-off valve 124 for closing the front port.

The shut-off valve 124 is an O-ring (O.R-1) is assembled in the front, the air passage plug 128 is formed in the outer peripheral air passage groove 128 is inserted so as to move back and forth, and

An air-tight cover 126 which is assembled with an O-ring (O.R-2) inserted into an O-ring groove formed on an outer circumference to seal the rear end of the rear port;

It consists of a compression spring 127 interposed between them.

Therefore, the air blocking plug 125 is to close the front port always in close contact with the O-ring (0.R-1) by the elastic force of the compression spring 127.

At this time, the air passage groove 128 of the air blocking plug 125 is positioned in communication with the air supply path 140 so that each air outlet 120 is always in communication.

In addition, each of the air exhaust port 130 is formed to discharge the air discharged from the valve means 800 to be described later,

When the module plate 100 is mounted on a robot unit (not shown), it is not easy to be discharged to the rear so that the module plate 100 is passed through at a right angle so as to be discharged to the bottom of the module plate 100 in consideration of the ease of discharge, thereby reducing the emission noise. The silencer 135 is configured to be assembled.

As shown in FIGS. 2 to 6, the head body 200 penetrates the cylinder chamber 210 through three layers of the upper chamber 201, the central chamber 202, and the lower chamber 203, and has a front center. Exhaust holes 220 and 221 pass through the upper chamber 201 and the lower chamber 202 of the cylinder chamber 210, and slot holes 222 in the longitudinal direction behind the upper chamber 201. ) Is penetrated, and long grooves 230 and 230 are formed in the vertical direction on both sides of the front, and a fixing groove 231 is formed in the vertical direction from the bottom to the upper center, and is inclined inward at the left and right rear ends. Fixing grooves 232 and 232 are formed,

The upper support bracket 250 and the lower support bracket 260, which are fastened to each other by fastening bolts to the module plate 100, are protruded from the upper and lower parts of the rear,

The lower end of each of the center chamber 202 and the lower chamber 203 of the cylinder chamber 210 is assembled and fixed to the cylinder cover 270 in which the rod cover 205 and the bearing 280 are assembled. The air passage 290 communicating with the upper portion of the 203 is configured to penetrate.

At this time, the long grooves (230, 230) are inserted into the contactless sensor rod (240,240) for detecting the rising and lower limit of the magnetic ring that is built in the up-down rotation means 300 to be described later, such a contactless sensor rod is installed separately It is connected to a sensor (not shown).

As shown in FIGS. 2 to 5, 8, and 9, the up-down rotation means 300 is configured to simultaneously move up, down, and rotate in the cylinder chamber 210.

The up-down rotation means 300 is an up-download (310),

A piston 320 which is assembled to the up-downloading and moves up and down while keeping the lower chamber 203 of the cylinder chamber 210 airtight,

A buffer damper 330 which provides a shock absorbing operation when the piston descends,

An up-down joint 350 assembled to an upper portion of the up-download 310;

A compression spring 360 installed on an upper portion of the up-downloading 310 to provide downward elasticity;

A ball spline shaft 380 assembled with the up-down joint 350 to provide only a lifting operation; a ball spline bearing 381 providing only a rotation of the ball spline shaft;

A first pulley 385 and a second pulley 386 for providing rotational power to the ball spline bearing 381 to rotate the up-down joint 350 and the up-downloading 310;

A gap retaining ring 388 or a position detecting ring 389 selectively installed between the first pulley 385 and the second pulley 386,

A bearing housing 371 having a plurality of rolling bearings for supporting the rotation of the first pulley 385, a damper 372 of a urethane material provided in close contact with a lower portion of the bearing housing, and an upper portion of the up-down joint 350. Single rolling bearing 373 which is tightly fixed to the lower surface of the stepped portion,

The lower outer circumference of the rolling bearing 373 and the lower portion of the lower surface is wrapped around the outer periphery of the up-down joint 350 is assembled and fixed by the anti-rotation locker 375 and the magnetic ring 340 on the opposite side of the anti-rotation locker ) Is composed of assembled rotary spacer 374.

The magnetic ring 340 provides a detection operation to the contactless sensor rods 240 and 240 assembled to the front of the head body 200 to provide a function of detecting a lifting position of the up-downloading 310.

The up-downloading 310 has a connection rod 311 having a smaller outer diameter than the stepped head 312 in the center thereof is extended, and screw portions 311a and 311b and upper portions of the screw portions 311a and the outer periphery thereof. Assembling the O-ring (OR-3) in the formed O-ring groove (311c) and protrudes to the bottom, forming a fastening screw protrusion 313 on the top, the stepped piston hole 315 and the rod hole 316 extended in the central vertical direction A plurality of exhaust holes 317 and 319 penetrating in the horizontal direction, respectively, and a rod packing 318 is assembled at a lower inner circumference of the rod hole 316.

The piston 320 is assembled to the piston packing (320a) (320b) on the upper and lower outer periphery and the inner peripheral threaded portion (320c) is assembled to the central threaded portion (311a) of the connecting rod (311) in the O-ring groove (311c) The assembled O-ring (OR-3) is firmly screwed in the state accommodated, and is assembled by the snap ring 326 in a state where the screw loosening is prevented.

At this time, the piston 320 is at least lower than the air passage 290 of the cylinder chamber 210 so that the lowering operation by the air pressure.

As the anti-rotation rocker 375 is shown in Figure 9, the magnetic spacer 340 is installed to provide a vertical lifting operation in the correct position with the rotary spacer 374 is prevented from rotating, The bearing 375a for smoothly raising and lowering the slot hole 222 of the head body 200, and the dual screw 375b assembled with the rotary spacer 374 and assembling the bearing 375.

The buffer damper 330 is unreasonable to the device due to the impact generated when the step head 312 of the above-mentioned download (310) is lowered to contact the load cover 205 of the central chamber 202. Since the load and damage may be caused, it is installed for the purpose of buffering according to the lowering operation of the step head 312.

The up-down joint 350 is connected to the fastening screw hole 351 formed at the lower inner circumference of the upper stepped shaft hole 352, the setting screw hole (353) is formed in the horizontal direction of the stepped shaft hole is The lower end of the ball spline shaft 380 is fitted and is firmly assembled with the setting screw 353a.

The compression spring 360 is fitted into the outer circumference of the up-downloading 310 and the up-down joint 350 and is mounted on the upper portion of the rod cover 205 and the bottom of the spring spacer 361 and the rotary spacer 374. The up-downloading 310 and the up-down joint 350 are always in an elevated position by touching the top surface of the rotary spacer 374 so as to be in close contact with the bearing 373. The piston 320 assembled in the) is also positioned so that the upper surface in the raised position is lower than the air passage 290 communicated with the upper end of the lower chamber 203 of the head body 200.

At this time, the compression spring 360 is a rectangular spring is excellent in durability and stiffness compared to the circular spring, it can minimize surging during high-speed operation, less strain even in long-term use is suitable for application to the present invention .

The ball spline bearing 381 is assembled with a first pulley 385 and a snap ring 384 sandwiched between the outer circumference and the rolling bearings 371a and 371b, and a fastening bolt 387 thereon. The gap retaining ring 388 or the position detecting ring 389 and the second pulley 386 are sequentially assembled.

At this time, the first pulley (385) and the second pulley (386) is connected to the timing belt (T-B) from the rotational power control means 700 receives a rotational power,

With this rotational power, the ball spline bearing 381 and the ball spline shaft 380, an up-down joint 350 assembled and assembled with the ball spline shaft, and an up-download 310 connected and assembled with the up-down joint are provided with rotational power at the same time. do.

The dotting nozzle means 400 is shown in Figures 2 to 5, 10 to 13, the connection joint 410 is screwed to the connection rod 311 of the up-downloading 310,

A guide block 420 connecting the epoxy transfer means 500 for transferring an epoxy (E.P) filled in a syringe (S.L),

A nozzle assembly 430 assembled to a lower portion of the connection joint,

The nozzle assembly and the guide block 420 is composed of a nozzle cap 440 for fixing the assembled state in the connection joint 410.

The connection joint 410 has an expansion head formed with a fastening screw hole 411 is fastened to the threaded portion of the connecting rod 311, the fastening screw hole 411 is a filling hole 412 in the lower portion And nozzle assembly holes 415 are connected to each other, and the filling holes 412 are filled with a plurality of filling inlets passing through the filling guide grooves 413 and the filling holes 412 obliquely upwardly. 414), the respective O-rings (OR-4, OR-5) are assembled in the O-ring grooves formed adjacent to the upper and lower portions of the filling guide groove 413.

As shown in FIGS. 11 to 13, the guide block 420 has a rotation guide hole 421 penetrating in a vertical direction on one side thereof, and a filling guide hole 422 located in the filling guide groove 413. The rotary shaft hole 421 is connected in a horizontal direction through one side, the heater hole 423 is formed in the same direction on the opposite side of the filling guide hole 421, the heater 425 is assembled and the filling guide hole 422 The air supply path 470 is formed between the heater hole 423 and the air supply path 470 is connected to the air circulation path 475 communicating with the exhaust holes 471, 472, 473 in front and up and down.

The heater hole 423 is passed through the setting screw hole 424 narrow in the front end in an orthogonal state on one side, the ball 428 and the compression spring 427 is fitted and screwed with the setting screw 426 As the ball 428 is fixedly assembled by the fixing nut 429, a part of the ball 428 protrudes from the heater hole 423, and the hook ring groove 425a formed at the outer circumference of the heater 425 is the ball 428. ) Is assembled to detachable.

The air supply path 470 is usually connected to an air supply means (not shown) for supplying hot or cold air and a connection adapter 476 so that air supplied from the air supply means passes through the air circulation path 475. In the process of evacuating the exhaust holes 471, 472, and 473, the solution (epoxy) supplied through the filling guide hole 421 is overheated in the summer by the heater 425 assembled in the heater hole 423, or is inferior in winter. By maintaining a constant temperature at the temperature suitable for the epoxy properties can be supplied in a state that maintains the properties of the solution to provide the best dotting work as well as minimizing the failure rate.

The nozzle assembly 430 has a protrusion protrusion 431 protrudes on the outer periphery and the nozzle hole 432 penetrates through the center, the needle sheet 433 is assembled in the upper center, the nozzle 435 and the lower part, Rod-shaped stoppers 436 and 436 were assembled to both nozzles.

At this time, the needle sheet 433 is formed with a wedge-shaped sheet hole 433a communicating with the nozzle hole 432 is stepped dotting needle in the lower portion of the dotting piston 610 of the discharge amount adjusting means 600 to be described later The hemispherical end of 612 is to be sealed while being in close contact and striking.

The needle sheet 433 is a place where the dotting needle 612 directly hits, and is made of stainless steel which is heat-treated and hard chromium-plated to resist impact and to prevent deformation. Is done.

In addition, the stoppers 436 and 436 protrude slightly from the ends of the nozzle 435 so that a predetermined gap GAP is formed between the nozzle 435 and the stopper 436.

In addition, the nozzle 435 may be one assembled between the stoppers 436 and 436 of the two according to the dotting operation, or may be one composed of two nozzles 435 if necessary.

The material and surface treatment of the needle sheet 433 prevents abrasion or breakage of the surface due to frequent contact with the dotting needle 612 formed at the end of the dotting piston 610 of the discharge amount adjusting means 600 which will be described later. This is to ensure that the epoxy (EP) acceptance is always constant.

The dotting nozzle means 400 is the guide block 420 is fitted close to the bottom surface of the expansion head through the rotary shaft hole 421 to the connection joint 410, the nozzle assembly 430 is the connection joint The locking projection jaw 431 is assembled to the setting groove 410a fitted into the nozzle assembly hole 415 of the 410, and the nozzle cap 440 uses a through hole 441 through the center thereof. The spacer 441 penetrates through the lower portion of the nozzle assembly 430 to be in close contact with the lower portion of the connection joint 410 to assemble the screw.

Therefore, the nozzle assembly 430 is prevented from being separated by the nozzle cap 440 while the locking projection 431 is set in the setting groove 410a of the connection joint 410 and at the same time the guide block 420 Deviation of the nozzle cap 440 is prevented.

On the other hand, the height dimension of the guide block 420 is assembled with a large dimension for receiving each O-ring groove of the connecting joint 410 is the O-ring (OR-4) (OR-5) in the rotary shaft hole 421 ) Is accepted.

Accordingly, the filling guide groove 413 of the connection joint 410 and the filling guide hole 422 of the guide block 420 communicate with each other in a state where airtightness is maintained, thereby ensuring airtightness even when the connection joint 410 is rotated. This is guaranteed.

As shown in Figure 2 and 14, the epoxy transport means 500, the syringe filled with epoxy (E.P) (S.L),

A syringe joint 510 assembled to the tip of the syringe,

A connecting nipple 520 screwed to the syringe joint,

A connection nipple 530 screwed to the filling guide hole 422 of the guide block 420 of the dotting nozzle means 400;

A flexible connection hose 540 connecting the respective connection nipples 520 and 530;

It is composed of a syringe block 550 supporting the syringe joint 510.

At this time, the syringe joint 510 is assembled by inserting an O-ring (O.R-6) into the assembly hole 551 of the syringe block 550 to maintain airtightness by screwing the connection nipple 520,

The syringe joint 510 is fixed to the rotation is prevented by the setting screw 553 screwed into the setting screw hole 552 penetrated through the assembly hole 551,

The syringe block 550 is fastened and fastened with a fastening bolt 555a in a state in which a fixing bracket 554a is inserted into a fixing groove 231 formed at the front of the head body 200.

At this time, the capacitive sensor (solution remaining detection sensor) ES is inserted into the fixing bracket 554b in the fixing groove 231 of the head body 200 to detect the remaining amount of the epoxy solution contained in the syringe (SL). The fastening bolt 555b in the state is installed to be connected to a separate control unit (not shown) is installed, it is to alert the replacement time by automatically detecting when the epoxy solution of the syringe falls.

In addition, the connection hose 540 is made of a disposable material for ease of cleaning of epoxy (E.P).

1 to 15 and 16, the discharge amount adjusting means 600 passes through the center of the ball spline shaft 380, stepped shaft hole 352 of the up-down joint 350, the up-down rotation Dotting piston 610 is installed through the piston hole 315 and the rod hole 316 of the up-downloading 310 of the means 300,

A support piston fitted to an inner upper surface of the up-down joint 350 of the up-down rotation means 300 and a stepped head 610a formed at the center of the dotting piston 610 to provide downward elasticity to the dotting piston ( Compression spring 630 is installed between the upper surface of the 620,

A dotting stopper nut 640 which is assembled to the upper threaded portion 611 of the dotting piston 610;

A buffer damper 650 which is fastened to the upper portion of the second pulley 386 of the up-down rotation means 300 by a bolt 650a to cushion the impact of the lowering operation of the dotting stopper nut 640;

The dotting nozzle means 400 is screwed to the threaded portion 316 of the connecting rod 311 of the up-down rotation means 300 by a central threaded hole 661 and the O-ring (OR-7) is fitted to the bottom surface. A joint spacer 660 screwed into the fastening screw hole 411 of the connection joint 410 of

Dotting formed at the bottom of the dotting piston 610 in the state in which the upper portion 670a is fitted through the O-ring (OR-8) on the outer circumference of the protrusion ring 660a protruding from the lower portion of the joint spacer 660. The lower portion 670b is screwed to the threaded portion 613 formed on the needle 612 via the stopper ring 690 and screwed to the fixing nut 680 to connect the dotting piston 610 to the dotting nozzle. It is composed of a bellows hermetic ring 670 that is assembled to maintain the airtight solution and the filling filling the filling hole 412 of the means (400).

The dotting piston 610 is configured by the bellows hermetic ring 670 to constitute the dotting nozzle means 400 in a state in which the dotting needle 612, which is thinly stepped at the time of the elevating operation, is completely maintained in the upper surface thereof. Through the filling hole 412 of the connecting joint 410 to open and close the wedge-shaped sheet hole 433a of the needle sheet 433 of the nozzle assembly 430,

In order to maintain secondary airtightness, O-rings (O.R-9) may be assembled in grooves formed between the stepped heads 610a to maximize airtightness.

The adoption of the bellows hermetic ring 670 completely blocks the outflow of the solution, which has been a problem in the applicant's source technology, so that the device is not damaged.

In particular, the dotting piston 610 can be replaced at any time by a different type depending on the wear or damage of the bellows airtight ring 670, the solution applied.

That is, by unscrewing the dotting stopper nut 640 screwed to the screw portion 611 formed on the upper portion of the dotting piston 610, it is easily separated by separating the dotting nozzle means 400 to draw out.

The dotting needle 612 of the dotting piston 610 is formed in a hemispherical end to be in close contact with the wedge-shaped seat hole 433a of the needle seat 433, the on of the valve means 800 to be described later In the state lowered to the lowermost end by operation, a gap (GAP) is formed by forming the gap with the lowermost surface of the wedge-shaped seat hole 433a of the needle seat 433 by adjusting the screw of the dotting stopper nut 640. A portion of epoxy (EP) is filled in the portion and the epoxy filled in the seat hole (433a) in the process of ascending by the elastic force of the compression spring (360,630) by the off operation of the valve means 800 again the dotting needle ( 612 is pushed to the nozzle 435 by hitting pressure to form a predetermined amount at the front end, and the epoxy (EP) formed at the front end of the nozzle 435 by the on-operation of the valve means 800 is turned on again.

In addition, the compression spring 630 is a rectangular spring is excellent in durability and stiffness compared to the circular spring, can minimize the surging during high-speed operation, the strain is small in long-term use is suitable for application to the present invention .

The rotational power control means 700, as shown in Figure 1, 17 to 19, the drive motor 710,

A drive pulley 720 assembled to a drive shaft of the drive motor,

A motor body 730 assembled to one side of the module plate 100 to support and assemble the driving motor 710;

The position detection ring 389 installed between the first pulley 385 and the second pulley 386 of the up-down rotation means 300 which receives the rotational power of the driving motor 710 at the very last. A detection sensor S installed in the module plate 100 to control a rotation angle of the drive shaft of the drive motor 710;

A timing belt (T-B) for transmitting rotational power by connecting the first pulley 385 and the second pulley 386 of the driving pulley 720 and the respective up-down rotation means 300;

The tension adjustment assembly 750 adjusts the tension of the timing belt T-B.

At this time, the drive motor 710 is used an AC servo motor (SERVO MOTER) capable of high speed, high precision control.

The sensor S is electrically connected to a normal control unit (not shown) and detects and controls the rotation angle of the projection 389a of the position detection ring 389 to apply the nozzle 435 (only a plurality of nozzles). In order to sense the setting angle of the control panel, the setting angle of the nozzle 435 is set as the origin during the dotting operation, and thus the dotting position is set by the rotation control of the driving pulley 720.

The tension adjustment assembly 750 is installed between the unit head body 200 and the head body 200 to adjust the tension by the degree to press the timing belt (TB) from the outside by the slide movement adjustment. .

That is, the tension adjusting assembly 750 has a slide assembly groove 752 penetrating in the longitudinal direction in the center in the longitudinal direction at the center thereof, and is provided at both rear sides of the fixing grooves 232 and 232 formed at the left and right rear ends of the head body 200. A support block 751 that is fitted into the horizontally protruding fitting piece 751a and is assembled to the head body 200 as an assembly piece 751b that protrudes in both front and horizontal directions;

A screw shaft 753 in which a bearing 754 is assembled to slide in the slide assembly groove 752 of the support block 751;

A support nut 755 for moving and fixing the screw shaft 753 in the slide assembly groove 752;

The stopper bolt 756 is screwed into the front screw groove 751c of the support block 751 to prevent movement of the support nut 755.

The tension adjustment assembly 750 is advanced in the slide assembly groove (752) by loosening the screw shaft (753) to the support nut (755) in a state in which the stopper bolt 756 is retracted by screwing back. Rewind and securely tighten the screw again, and tighten the stopper bolt 756 again to tightly fix the front surface of the support nut 755 so that the tension of the timing belt TB is prevented while the flow is prevented. 754 is in close contact with the adjustment.

The valve means 800 is a solenoid valve, as shown in FIGS. 2, 6, and 7, the air discharge / inlet hole 810 formed in front communicates with the cylinder chamber 210 of the head body 200. Connected to the air passage 290, which is inserted into the air discharge port 120 and the air exhaust port 130 of the module plate 100 as fixing air joints 820 and 830 protruding upward and downward from the rear, respectively. do.

In this case, the fixing air joints 820 and 830 have the same structure, and a plurality of air passages 840 communicating with the internal passages are formed at the front end thereof, and are provided at the front ports of the air outlet 120 and the air exhaust port 130. The pressure protrusion ring 850 to be fitted is formed and fitted to the front port of the air discharge port 120 and the air exhaust port 130 in the state where the O-ring (0.R-10) is inserted from the tip.

As mentioned above, the valve means 800 is a solenoid valve, capable of precisely exerting regular and strong propulsion force and capable of producing a high speed response speed having a short stroke at a maximum speed of 2-2. (WAY) Solenoid valve is applied.

The fixing air joints 820 and 830 of the valve means 800 are fitted to the air discharge port 120 and the air exhaust port 130 of the module plate 100. The O-ring (OR-10) is pressed close to provide a perfect airtight with the outside,

At the same time, when the air blocking plug 125 of the shutoff valve 124 installed at the rear port of the air discharge port 120 presses the compression spring 127, the air retracting plug 125 is retracted, and the air passage 840 penetrated to the front end and the air supply The furnace 290 remains in communication.

When power is applied to the valve means 800 in such an assembled state, the cylinder chamber 210 of the head body 200, that is, the air having a constant pressure through the air discharge / inlet hole 810 in front of the valve is opened. The piston 320 of the up-down rotation means 300 is lowered by being supplied from the upper portion of the lower chamber 203.

In addition, when the power is turned off, the air introduced while the up-down rotation means 300 is raised to its original position by the elastic force of the compression spring 360 is air-fixed through the front air discharge / inlet hole 810 again. The exhaust noise is minimized and discharged by the silencer 135 while being discharged through the joint 830 and the air exhaust port 130.

Therefore, the present invention minimizes heat generation by applying power to the valve means 800 only during the dotting operation, and the minimization of heat generation minimizes the heat deformation of the supplied epoxy (EP), thereby minimizing the dotting failure rate and extending the life. do.

The valve means 800 is directly connected to the air supply passage 290 of the head body 200 to supply and shut off the power pneumatic to the cylinder chamber 210 of the head body 200 is provided up and down rotation means Rapid lifting operation, that is, high speed response of the 300 and the discharge amount adjusting means 600 is provided.

The present invention, as mentioned above, in the control state between the X-axis and the Y-axis in the upper portion of the PCB substrate is transported and placed in a state in which the module plate 100 is assembled in a conventional robot unit (not shown) It is installed to move freely.

In this state, air supply means for supplying compressed air to one side of the air supply path 140 of the module plate 100, for example, a compressor is connected, and the other end of the end cap (not shown) is finished.

In this state, the valve means 800 passes through the air passage 290 of the head body 200 through the air discharge / inlet hole 810 in front of the valve means 800 by applying power to or blocking the valve means 800. The compressed air drawn into the lower chamber 203 of the cylinder chamber 210 lowers or raises the piston 320 installed in the lower chamber of the cylinder chamber 210 so that the up-down rotation means 300 and the dotting nozzle means. 400, the dotting operation is performed by repeated Z-axis movement of simultaneously lowering or raising the discharge amount adjusting means 600.

The present invention is that the up-down rotation means 300, the dotting nozzle means 400, the discharge amount forming means 600 is always installed in the position of the highest state, the Z-axis movement according to the dotting operation is the opposite of the applicant's prior application technology Proceed by lowering and raising operation.

Looking at this in more detail, the dotting needle 612 of the dotting piston 610 of the discharge amount adjusting means 600 is in close contact with the wedge-shaped sheet hole 433a of the needle sheet 433 of the dotting nozzle means 400 The lowering, the dotting piston 610 is adjusted to have a predetermined gap higher than the lowest point of the nozzle assembly 430 of the dotting nozzle means 400 by the setting of the dotting stopper nut 640. 433 and the dotting needle 612 form a predetermined gap in the lowest position.

Epoxy (EP) filled and supplied to the epoxy transfer means 500 by the occurrence of such a gap is filled in the gap portion of the dotting needle 612 and the needle sheet 433, and the epoxy filled in the gap portion by a rising operation again. As the dotting needle 612 is pushed and supplied to the nozzle 435, the epoxy (EP) is formed in a predetermined amount in the nozzle 435.

In this state, the epoxy (EP) formed at the tip of the nozzle 435 by the lowering operation of the up-down rotation means 300, the dotting nozzle means 400, and the discharge amount adjusting means 600 is again doped to the PCB substrate. Epoxy (EP) is formed in a predetermined amount at the tip of the nozzle 435 by the upward operation, and the continuous and constant amount of epoxy (EP) is doped by the downward operation as described above.

This process of operation is the same as the applicant's prior application.

However, as mentioned above, the up-down rotation means 300, the dotting nozzle means 400, the discharge amount forming means 600 for the dotting operation by the on-operation of the valve means 800, the lowering operation by providing the air pressure As this progresses, there is no damage to the PCB substrate due to unreasonable lowering operation.

In particular, the present invention is a gap between the dotting needle 612 and the needle seat 433 of the dotting piston 610, that is, the dotting amount can be easily used by the adjustment of the dotting stopper nut 640, and the applied epoxy ( According to the characteristics of EP), the replacement of the dotting piston 640 in a suitable form is simply provided to provide device compatibility.

In addition, the bellows airtight ring 670 is completely prevented from damaging the device by leaking the epoxy (E.P) due to the lifting operation of the dotting piston 610 to the top.

As described in detail above, the present invention provides the effect of preventing the damage to the PCB board due to the excessive impact of falling by providing a lowering operation by the spring force pointed out as a disadvantage of the applicant's prior application technology by the on operation of the valve means. There is,

By keeping the valve means on only during the dotting operation, it prevents the change of epoxy (E.P) due to the minimization of heat generation.

Effectively providing the airtightness of the dotting piston by the bellows airtight ring without damaging the device.

The dotting piston is easy to separate and provides a convenient effect when replacing or cleaning according to the applied solution.

Claims (9)

A module plate 100 mounted on a common robot unit and configured to allow an air discharge port 120 and an air exhaust port 130 for each unit group for connecting power pneumatics to an assembled unit capable of moving in an X-Y-axis; A head body 200 mounted as a unit on the module plate, An up-down rotation means 300 which is assembled to the cylinder chamber 210 of the head body to enable individual phase, high motion and rotation; Dotting nozzle means 400 which is mounted to the lower portion of the up-down rotation means and provided with a nozzle 435 for dispensing epoxy (E.P), Epoxy transfer means 500 for transferring the epoxy (E.P) filled in the syringe (S.L) to the dotting nozzle means 400 at a constant pressure, and Discharge amount adjusting means 600 for quantitatively discharging the epoxy (E.P) transferred to the dotting nozzle means 400 and finely adjusting the discharge amount; Rotational power control means 700 for transmitting and controlling the rotational power of the up-down rotation means 300, It includes a valve means 800 for controlling the power pneumatic pressure of the Shanghai-dong of the up-down rotation means 300 is connected to the module plate 100, The cylinder chamber 210 of the head body 200 penetrates into three layers of the upper chamber 201, the central chamber 202, and the lower chamber 203 to pass through the air passage 290 to the upper portion of the lower chamber 203. Is penetrated, The up-down rotation means 300 is installed in an elevated position with a compression spring 360 that is elastically installed between the central chamber 202 and the bearing housing 371 that is assembled and fixed to the upper chamber 201, The piston 320 is assembled and installed in the proximal position of the lower side of the air passage 290 penetrated to the upper portion of the sub-chamber 203, The discharge amount adjusting means 600 installed in the up-down rotation means 300 and the inside thereof by the lowering of the piston 320 and the rising by the compression spring 360 due to the on and off operation of the valve means 800. And the lowering and raising of the dotting nozzle means 400 assembled therewith, the discharge amount adjusting means 600 is airtight with the dotting nozzle means 400 according to the lifting operation in the bellows airtight ring 670 A high-speed quantitative dispensing head capable of precise control of up-down and rotation, characterized in that formed by. According to claim 1, The up-down rotation means 300, Up-download (310), A piston 320 which is assembled to the up-downloading and moves up and down while keeping the lower chamber 203 of the cylinder chamber 210 airtight, A buffer damper 330 which provides a shock absorbing operation when the piston descends, An up-down joint 350 assembled to an upper portion of the up-download 310; A compression spring 360 installed on an upper portion of the up-downloading 310 to provide downward elasticity; A ball spline shaft 380 assembled with the up-down joint 350 to provide only a lifting operation; a ball spline bearing 381 providing only a rotation of the ball spline shaft; A first pulley 385 and a second pulley 386 for providing rotational power to the ball spline bearing 381 to rotate the up-down joint 350 and the up-downloading 310; A gap retaining ring 388 or a position detecting ring 389 selectively installed between the first pulley 385 and the second pulley 386, A bearing housing 371 having a plurality of rolling bearings for supporting the rotation of the first pulley 385, a damper 372 of a urethane material provided in close contact with a lower portion of the bearing housing, and an upper portion of the up-down joint 350. Single rolling bearing 373 which is tightly fixed to the lower surface of the stepped portion, The lower outer circumference of the rolling bearing 373 and the lower portion of the lower surface is wrapped around the outer periphery of the up-down joint 350 is assembled and fixed by the anti-rotation locker 375 and the magnetic ring 340 on the opposite side of the anti-rotation locker A high speed quantitative dispensing head capable of precise control of up-down and rotation, characterized in that it comprises a rotary spacer 374 is assembled. The method according to claim 1 or 2, The piston 320 is assembled with the piston packing (320a) (320b) on the upper and lower outer periphery and the inner peripheral threaded portion (320c) is assembled to the threaded portion (311a) formed in the center of the connecting rod (311), the screw portion (311a) High speed metering dispenser capable of precise control of up and down and rotation, characterized in that the O-ring (OR-3) is assembled and accommodated in the O-ring groove (311c) formed in the upper part of the upper part, and is fixed by the snap ring 326. head. The method of claim 2, The anti-rotation locker 375 is assembled with a bearing 375a for elevating the slot hole 222 formed on the rear surface of the head body 200 and the rotary spacer 374 to assemble the bearing 375. High-speed fixed-quantity dispenser head capable of precise control of up-down and rotation, characterized by consisting of a screw (375b). The method of claim 2, The compression spring 360 is fitted into the outer circumference of the up-downloading 310 and the up-down joint 350 and is mounted on the upper portion of the rod cover 205 and the bottom of the spring spacer 361 and the rotary spacer 374. The up-downloading 310 and the up-down joint 350 are in a raised position so that the upper surface of the rotary spacer 374 is in close contact with the bearing 373 so as to be in a raised position. The piston 320 assembled in the) is also installed in a position closer to the lower side than the air passage 290 communicated to the upper end of the lower chamber 203 of the head body 200 at the maximum raised position. High-speed quantitative dispensing head for precise control of up-down and rotation. According to claim 1 or 2, The dotting nozzle means 400 is a connection joint 410 is screwed to the connection rod 311 of the up-downloading 310, A guide block 420 connecting the epoxy transfer means 500 for transferring an epoxy (E.P) filled in a syringe (S.L), A nozzle assembly 430 assembled to a lower portion of the connection joint, The nozzle assembly and the guide block 420 includes a nozzle cap 440 for fixing the assembled state in the connection joint 410, The guide block 420 has a rotating shaft hole 421 penetrates in a vertical direction to one side and the filling guide hole 422 located in the filling guide groove 413 of the connection joint 410 is the rotating shaft hole 421. ) Is connected through at one side in the horizontal direction, the heater hole 423 is formed on the opposite side of the filling guide hole 421 in the same direction, the heater 425 is assembled, the filling guide hole 422 and the heater An air supply path 470 is formed between the balls 423, and the air supply paths 470 are connected to the air circulation paths 475 communicating with the exhaust holes 471, 472, and 473 in front and up and down. High-speed quantitative discharge type dispenser head capable of precise control of up-down and rotation, characterized in that configured to prevent changes in the properties of epoxy (EP) by the usual cold, hot air supplied through. According to claim 1 or 2, wherein the discharge amount adjusting means 600 passes through the center of the ball spline shaft 380, the stepped shaft hole 352 of the up-down joint 350, the piston of the up download 310 Dotting piston 610 is installed through the ball 315 and the rod ball 316, A support piston that is fitted to an inner upper surface of the up-down joint 350 of the up-down rotation means 300 and the stepped head 610a formed at the center of the dotting piston 610 to provide downward elasticity to the dotting piston ( Compression spring 630 is installed between the upper surface of the 620, A dotting stopper nut 640 which is assembled to the upper threaded portion 611 of the dotting piston 610; A buffer damper 650 which is fastened to the upper portion of the second pulley 386 of the up-down rotation means 300 by a bolt 650a to cushion the impact of the lowering operation of the dotting stopper nut 640; The screw assembly 316 of the screw rod 316 of the connecting rod 311 of the up-down rotation means 300 and the O-ring (OR-7) is fitted to the bottom surface of the connecting joint 410 A joint spacer 660 screwed into the fastening screw hole 411, Dotting formed at the bottom of the dotting piston 610 in the state in which the upper portion 670a is fitted through the O-ring (OR-8) on the outer circumference of the protrusion ring 660a protruding from the lower portion of the joint spacer 660. The lower portion 670b is formed of the bellows hermetic ring 670 which is screwed into the fixing nut 680 via the stopper ring 690 on the threaded portion 613 formed on the upper portion of the needle 612. High-speed quantitative dispensing head for precise control of up-down and rotation. The method of claim 7, wherein The dotting piston 610 is pulled down and separated by separating the screw of the connecting joint 410 and the tightening spacer 660 and the screwing of the dotting stopper nut 640, the precision of the up-down and rotation High-speed quantitative dispenser head that can be controlled. The method according to claim 1 or 2, The rotational power control means 700 is assembled to one side of the module plate 100 and the drive motor 710 is installed as a motor body 730, and The first pulley 385 and the second pulley of the up-down rotation means 300 which is connected to the driving force of the drive motor of the drive motor 720 assembled to the drive shaft by a normal timing belt (TB) and finally delivered to the last. Detecting the position detection ring (389) installed between the (386) and the detection sensor (S) for controlling the rotation angle of the drive shaft of the drive motor 710, It includes a tension adjustment assembly 750 for adjusting the tension of the timing belt (T-B), The tension adjusting assembly 750 has a slide assembly groove 752 penetrating in the longitudinal direction in the longitudinal direction at the center thereof so as to be horizontal to both rear sides of the fixing grooves 232 and 232 formed at the left and right rear ends of the head body 200. A support block 751 which is fitted into the fitting piece 751a protruding from the screw and is assembled to the head body 200 as an assembly piece 751b which protrudes in both the front and horizontal directions, A screw shaft 753 in which a bearing 754 is assembled to slide in the slide assembly groove 752 of the support block 751; A support nut 755 for moving and fixing the screw shaft 753 in the slide assembly groove 752; High-speed quantitative discharge capable of precise control of up-down and rotation, characterized in that the stopper bolt 756 is screwed into the front screw groove (751c) of the support block (751) to prevent movement of the support nut (755). Type dispenser head.